CN109163900B - Check valve flow pressure test equipment - Google Patents
Check valve flow pressure test equipment Download PDFInfo
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- CN109163900B CN109163900B CN201811354847.4A CN201811354847A CN109163900B CN 109163900 B CN109163900 B CN 109163900B CN 201811354847 A CN201811354847 A CN 201811354847A CN 109163900 B CN109163900 B CN 109163900B
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- 238000012360 testing method Methods 0.000 title claims abstract description 255
- 230000001105 regulatory effect Effects 0.000 claims abstract description 35
- 230000007246 mechanism Effects 0.000 claims description 103
- 238000007789 sealing Methods 0.000 claims description 98
- 239000000463 material Substances 0.000 claims description 47
- 210000001503 joint Anatomy 0.000 claims 1
- 238000001514 detection method Methods 0.000 abstract description 3
- 238000007599 discharging Methods 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 238000009826 distribution Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000003825 pressing Methods 0.000 description 3
- 230000032258 transport Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
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- 238000010923 batch production Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012840 feeding operation Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07C—POSTAL SORTING; SORTING INDIVIDUAL ARTICLES, OR BULK MATERIAL FIT TO BE SORTED PIECE-MEAL, e.g. BY PICKING
- B07C5/00—Sorting according to a characteristic or feature of the articles or material being sorted, e.g. by control effected by devices which detect or measure such characteristic or feature; Sorting by manually actuated devices, e.g. switches
- B07C5/34—Sorting according to other particular properties
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- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
The invention provides one-way valve flow pressure test equipment, which comprises a working turntable for performing rotary motion, wherein the one-way valve is arranged on the working turntable; the back pressure testing device, the low-pressure flow testing device and the high-pressure flow testing device are arranged around the working turntable; and a pressure regulating device for regulating the air pressure in the test line. The check valve flow pressure testing equipment is characterized in that a back pressure testing device, a low-pressure flow testing device and a high-pressure flow testing device are arranged on the periphery of a working turntable at the same time, the check valve to be tested is brought to the corresponding testing device by using the rotating working turntable, and after detection, the check valve is brought to the next testing device by the working turntable to carry out the next test until three tests are continuously and automatically completed, so that the working efficiency is high.
Description
Technical Field
The invention relates to the field of valve body detection equipment, in particular to one-way valve flow pressure testing equipment.
Background
At present, in the flow pressure test equipment of the check valve, after the check valve finishes the test of one-phase technical indexes on a workbench, for example, the test of back pressure characteristic, low pressure flow or high pressure flow is finished, the check valve needs to be reconnected with a pipeline or moved to other workbench to finish another test, but the back pressure characteristic, the low pressure flow and the high pressure flow of the check valve cannot be continuously and automatically detected, and the work efficiency is low.
Disclosure of Invention
In view of the above, the present invention aims to provide a check valve flow pressure testing device, so as to solve the problem that the prior art cannot continuously and automatically test the back pressure characteristic, low pressure flow and high pressure flow of the check valve, and the working efficiency is low.
In order to achieve the above purpose, the technical scheme of the invention is realized as follows:
a one-way valve flow pressure testing apparatus comprising:
A working turntable which performs a rotation operation, the check valve being provided on the working turntable;
back pressure testing device, it sets up around the said work rotary table, is used for testing the back pressure characteristic of the said check valve;
a low pressure flow rate testing device arranged around the working turntable and used for testing the low pressure flow rate of the one-way valve;
a high pressure flow rate testing device, which is arranged around the working turntable and is used for testing the high pressure flow rate of the one-way valve;
And the pressure adjusting device is used for adjusting the air pressure in the test pipeline.
Further, a fixing clamp is arranged on the working turntable and used for fixing the one-way valve.
Furthermore, the fixed clamp is of a square structure, a square mounting groove matched with the fixed clamp is formed in the working turntable, and the fixed clamp is fixed in the mounting groove.
Further, the plurality of fixing clamps are arranged on the working turntable in a circular array, and are suitable for being respectively corresponding to the positions of the back pressure testing device, the low pressure flow testing device and the high pressure flow testing device during testing.
Further, the back pressure testing device is provided with an upper sealing assembly and a lower sealing assembly, the upper sealing assembly and the lower sealing assembly are respectively in sealing connection with two ends of the one-way valve, and the fixing clamp is suitable for being located between the upper sealing assembly and the lower sealing assembly during testing.
Further, a pressure head, a spring and a guide shaft are arranged in the upper sealing assembly, the pressure head is fixedly connected with one end of the guide shaft, the spring is sleeved at the other end of the guide shaft, and the pressure head is abutted to the one-way valve during testing.
Further, the device comprises a feeding device arranged around the working turntable, a material conveying mechanism and a first grabbing and clamping mechanism are arranged on the feeding device, the material conveying mechanism conveys the check valve to the working turntable, the first grabbing and clamping mechanism is fixedly connected with the material conveying mechanism, and the check valve is conveyed from the material conveying mechanism to the fixing clamp.
Further, the automatic feeding device further comprises a blanking device which is arranged around the working turntable, a second clamping mechanism and an adjusting mechanism are arranged on the blanking device, the second clamping mechanism is in sliding connection with the adjusting mechanism, and the one-way valve is taken out from the fixing clamp.
Further, a sliding block is arranged on the second grabbing and clamping mechanism, a U-shaped chute is arranged on the adjusting mechanism, and the sliding block slides in the U-shaped chute.
Further, still include sorting device, sorting device is close to unloader sets up, sorting device includes divides silo and collection box, divide the silo to be the slope setting, and its one end is close to the edge of work revolving stage, the other end with the collection box is connected, the check valve by divide the silo to get into the collection box.
Compared with the prior art, the check valve flow pressure testing device has the following advantages:
(1) The check valve flow pressure testing equipment is characterized in that a back pressure testing device, a low-pressure flow testing device and a high-pressure flow testing device are arranged on the periphery of a working turntable at the same time, a check valve to be tested is brought to a corresponding testing device by using the rotating working turntable, and after detection, the check valve is brought to a next testing device by using the working turntable to carry out next testing until three tests are continuously and automatically completed, so that the working efficiency is high;
(2) The pressure head, the spring and the guide shaft are arranged in the upper sealing component in the check valve flow pressure testing equipment, so that when the upper sealing component rises upwards, the spring stretches, and a pushing force is applied to the pressure head through the guide shaft, so that the check valve is kept on the fixed clamp, the check valve is not lifted when the upper sealing component moves away from the check valve after the test is finished, and the continuity in the test is ensured.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention. In the drawings:
FIG. 1 is a schematic diagram of a check valve flow pressure test device according to an embodiment of the present invention;
FIG. 2 is a schematic diagram showing an installation state of a back pressure testing device and a fixing clamp according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of a check valve flow pressure testing device according to another embodiment of the present invention;
FIG. 4 is an enlarged view of FIG. 3 at A;
FIG. 5 is a partial cross-sectional view showing the mounting state of the back pressure testing device and the fixing jig in the embodiment of the present invention;
FIG. 6 is a schematic view of the internal structure of an upper seal assembly in an embodiment of the invention.
Reference numerals illustrate:
The device comprises a working turntable, a 11-fixed clamp, a 111-through hole, a 12-fixed part, a 13-rotating part, a 2-back pressure testing device, a 21-upper sealing component, a 211-pressure head, a 212-spring, a 213-guide shaft, a 214-bushing, a 215-upper vent hole, a 216-first cavity, a 217-second cavity, a 218-sealing block, a 219-sealing ring, a 22-lower sealing component, a 221-lower vent hole, a 222-third cavity, a 3-low pressure flow testing device, a 4-high pressure flow testing device, a 5-pressure regulating device, a 51-back pressure regulating mechanism, a 52-low pressure flow regulating mechanism, a 53-high pressure flow regulating mechanism, a 6-feeding device, a 61-transporting mechanism, a 62-first clamping mechanism, a 7-blanking device, a 71-second clamping mechanism, a 711-slider, a 72-regulating mechanism, a 721-U-shaped chute, a 722-cam, an 8-sorting device, a 81-dividing chute, a 82-collecting box, a 9-check valve, a 91-air inlet and a 92-air outlet.
Detailed Description
It should be noted that, without conflict, the embodiments of the present invention and features of the embodiments may be combined with each other.
In the description of the present invention, it should be noted that directions or positional relationships indicated by terms "upper", "lower", "left", "right", "high", "low", etc. are based on the orientation or positional relationships shown in the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus to be referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The invention will be described in detail below with reference to the drawings in connection with embodiments.
Example 1
The embodiment provides a check valve flow pressure test equipment, includes: a working turret 1 for performing a rotation operation, and a check valve 9 provided on the working turret 1; back pressure testing means 2 provided around the work turntable 1 for testing the back pressure of the check valve 9; a low pressure flow rate testing device 3 disposed around the working turntable 1 for testing the low pressure flow rate of the check valve 9; a high-pressure flow rate testing device 4 disposed around the working turntable 1 for testing the high-pressure flow rate of the check valve 9; and a pressure regulating device 5 for regulating the air pressure in the test line.
Referring to fig. 1, the working turntable 1 rotates clockwise, the back pressure testing device 2, the low pressure flow testing device 3 and the high pressure flow testing device 4 are sequentially arranged on the periphery of the working turntable 1 in the rotation direction, and the pressure adjusting device 5 is arranged near the working turntable 1. The check valve 9 is placed on the working turret 1 and is brought to the corresponding testing device with the rotation of the working turret 1.
Like this, under the drive of work revolving stage 1, check valve 9 can carry out backpressure test, low pressure flow test and high pressure flow test in proper order on work revolving stage 1 automatically, compared with prior art, check valve 9 need connect the pipeline again after accomplishing the backpressure test or remove to other workstation on order accomplish low pressure flow test or high pressure flow test, the test time of check valve 9 has been saved greatly, the effectual work efficiency who improves check valve flow pressure test equipment, the while also saved the operating personnel and need change the connected mode of test pipeline and remove the operation of check valve 9, degree of automation is high.
Alternatively, the sequence of the back pressure testing device 2, the low pressure flow testing device 3 and the high pressure flow testing device 4 in the rotation direction of the working turntable 1 is not limited, and can be set according to practical situations.
After the check valve 9 to be tested is placed on the working turntable 1 and fixed, a motor on the working turntable 1 is started to drive the working turntable 1 to rotate, so that the check valve 9 is driven to rotate together; when the check valve 9 rotates to the back pressure testing device 2, the working turntable 1 stops rotating, and the check valve 9 performs back pressure testing at the testing device; after the test is finished, the working turntable 1 starts to rotate again, the check valve 9 leaves the back pressure testing device 2 and rotates to the next testing device along with the working turntable 1, namely, the low-pressure flow testing device 3, the working turntable 1 stops rotating, and the check valve 9 performs low-pressure flow test at the testing device; after the test is finished, the working turntable 1 starts to rotate, the check valve 9 leaves the low-pressure flow testing device 3 and rotates to the next testing device, namely the high-pressure flow testing device 4, along with the working turntable 1, the working turntable 1 stops rotating, and the check valve 9 performs high-pressure flow test at the testing device; after all three tests are completed in sequence, the check valve 9 is driven by the working turntable 1 to leave the pressure flow testing device 4 and then is moved out of the working turntable, and at this time, the check valve 9 continuously and automatically completes the tests of back pressure, low pressure flow and high pressure flow. In the testing process, the check valve 9 rotates to a corresponding testing device along with the working turntable 1 to conduct testing, automatic operation is achieved, manual carrying is not needed, labor is saved, and the working efficiency of equipment is effectively improved.
Example 2
The present embodiment is different from the above-mentioned check valve flow pressure test apparatus in that the working turntable 1 in the present embodiment is provided with a fixing clamp 11, and the fixing clamp 11 is used for fixing the check valve 9.
Referring to fig. 1, a plurality of fixing jigs 11 are provided on the working turntable 1 near the edge, and the fixing jigs 11 are fixedly connected with the working turntable 1. The fixing clamp 11 is provided with a fixing groove, the cross section shape and the size of the fixing groove are matched with those of the check valve 9 so as to better fix the check valve 9, and the groove depth of the fixing groove is smaller than the height of the check valve 9 so as to ensure that the check valve 9 is exposed from the upper end face of the fixing clamp 11.
Like this, when work revolving stage 1 rotates, mounting fixture 11 is along with work revolving stage 1 circular motion to drive check valve 9 also circular motion, so that check valve 9 can follow test device and move to next test device, realize the automatic movement of check valve 9, in order to accomplish each item test, not only saved the manpower, also saved test time, improved test efficiency.
Further, as shown in fig. 1, the working turntable 1 includes a fixed portion 12 and a rotating portion 13, wherein the fixed portion 12 is fixed, the rotating portion 13 rotates around a rotation axis, the fixed portion 12 is located above the rotating portion 13, and a gap is formed between the fixed portion 12 and the rotating portion 13, so that friction is not generated between the fixed portion 12 and the rotating portion 13 when the rotating portion 13 rotates, and rotation of the rotating portion 13 is affected; the fixed portion 12 and the rotating portion 13 are both of a circular plate-like structure, the diameter of the fixed portion 12 is smaller than that of the rotating portion 13, and the axes of the fixed portion 12 and the rotating portion 13 coincide. The mounting fixture 11 is disposed on the upper end surface of the rotating portion 13 near the edge for fixing the check valve 9, the mounting fixture 11 is embedded on the rotating portion 13, and the upper end surface of the mounting fixture 11 (based on the upper direction in fig. 1) is flush with the upper end surface of the rotating portion 13, so as to ensure that the mounting of the mounting fixture 11 on the rotating portion 13 is more firm.
Example 3
As mentioned above, the difference between the present embodiment and the check valve flow pressure test device is that the fixing clamp 11 in the present embodiment is a square structure, the working turntable 1 is provided with a square mounting groove adapted to the fixing clamp 11, and the fixing clamp 11 is fixed in the mounting groove.
Referring to fig. 1, the fixing clamp 11 has a square structure, a square mounting groove adapted to the fixing clamp 11 is formed in a rotating portion 13 of the working turntable 1, the mounting groove has four groove walls perpendicular to an upper end face of the rotating portion 13, the fixing clamp 11 is embedded in the mounting groove on the working turntable 1 and is fixedly connected with the rotating portion 13 through a screw, and the upper end face (based on an upper direction in fig. 1) of the fixing clamp 11 is flush with the upper end face of the working turntable 1.
Therefore, when the fixing clamp 11 is replaced, the fixing clamp 11 can be taken out of the mounting groove only by unscrewing the screw, and the operation is simple and convenient; in addition, when the fixing jig 11 is mounted, the mounting position of the fixing jig 11 can be positioned according to the position of the mounting groove on the rotating portion 13, and the mounting accuracy is high.
Example 4
The check valve flow pressure testing device according to the above-mentioned embodiment is different from the check valve flow pressure testing device according to the present embodiment in that a plurality of fixing fixtures 11 are provided on the working turntable 1 in a circular array, and are adapted to correspond to the positions of the back pressure testing device 2, the low pressure flow testing device 3, and the high pressure flow testing device 4, respectively, during testing.
Referring to fig. 1, a plurality of fixing jigs 11 on the working turntable 1 are arranged in a circular array with the rotation axis of the working turntable 1 as the central axis; the back pressure testing device 2, the low pressure flow testing device 3 and the high pressure flow testing device 4 which are arranged on the periphery of the working turntable 1 are equivalent to three testing stations, the number of the fixing clamps 11 is not less than the number of stations on the working turntable 1, and each testing station is correspondingly provided with one fixing clamp 11 during testing.
Therefore, when the testing equipment performs testing, the back pressure testing device 2, the low pressure flow testing device 3 and the high pressure flow testing device 4 are respectively provided with the fixing clamp 11, and the testing of three different projects of the check valve 9 can be simultaneously performed, so that smooth operation of the testing assembly line is ensured.
Example 5
As described above, the present embodiment is different from the above-described check valve flow pressure test apparatus in that the back pressure test device 2, the low pressure flow test device 3, and the high pressure flow test device 4 in the present embodiment are respectively provided with a first upper sealing mechanism, a second upper sealing mechanism, and a third upper sealing mechanism, and the structures of the first upper sealing mechanism, the second upper sealing mechanism, and the third upper sealing mechanism are the same.
The first upper sealing mechanism, the second upper sealing mechanism and the third upper sealing mechanism are used for sealing the air inlet end of the check valve 9 during testing, and the first upper sealing mechanism, the second upper sealing mechanism and the third upper sealing mechanism have the same structure, that is, the three upper sealing mechanisms can be directly replaced with each other.
Therefore, one set of testing equipment only needs an upper sealing mechanism with one specification, so that batch production of the upper sealing mechanism is convenient to realize, and the manufacturing cost is reduced; and the structure of the test equipment is simplified, and the assembly difficulty of three test devices in the test equipment is reduced, so that the production efficiency of the test equipment is improved.
Further, the back pressure testing device 2 is further provided with a first lower sealing mechanism, and the low pressure flow testing device 3 and the high pressure flow testing device 4 are not provided with the first lower sealing mechanism.
Thus, the back pressure testing device 2 can test the back pressure characteristic of the check valve 9 and also can test the low-pressure flow and the high-pressure flow of the check valve 9, so that the back pressure testing device 2 can be independently from a production line and is independently used for testing the back pressure characteristic, the low-pressure flow and the high-pressure flow of the check valve 9.
In this embodiment, taking the back pressure testing device 2 as an example, the back pressure testing device 2 is provided with an upper vent hole 215 and a lower vent hole 221, the upper vent hole 215 is located on the first upper sealing mechanism, the lower vent hole 221 is located on the first lower sealing mechanism, the upper vent hole 215 is communicated with the air inlet 91 of the check valve 9, and the lower vent hole 221 is communicated with the air outlet 92 of the check valve 9. When the back pressure characteristic of the check valve 9 is tested, the upper vent hole 215 is opened, only the lower vent hole 221 is required to be filled with air, and the air pressure in the pipeline is regulated by the pressure regulating valve in the pressure regulating device 5 until the air pressure reaches a certain value, and at the moment, the air pressure value displayed on the pressure gauge in the pressure regulating device 5 is the measured back pressure of the check valve 9; when the low-pressure flow or the high-pressure flow of the check valve 9 is tested, the lower vent hole 221 is opened, only gas needs to be introduced into the upper vent hole 215, the air pressure in the pipeline is regulated by the pressure regulating valve in the pressure regulating device 5 until the air pressure reaches a certain value, at this time, the air pressure value displayed on the pressure gauge in the pressure regulating device 5 is the low-pressure value or the high-pressure value of the check valve 9, and the flow value displayed on the flow meter in the pressure regulating device 5 is the low-pressure flow or the high-pressure flow of the check valve 9.
Example 6
As described above, the present embodiment is different from the check valve flow pressure test apparatus in that the pressure regulating device 5 in the present embodiment includes the back pressure regulating mechanism 51, the low pressure flow regulating mechanism 52, and the high pressure flow regulating mechanism 53, and the back pressure regulating mechanism 51, the low pressure flow regulating mechanism 52, and the high pressure flow regulating mechanism 53 are identical in structure.
The back pressure testing device 2, the low pressure flow rate testing device 3 and the high pressure flow rate testing device 4 are respectively connected with a back pressure adjusting mechanism 51, a low pressure flow rate adjusting mechanism 52 and a high pressure flow rate adjusting mechanism 53 through air pipes. The back pressure adjusting mechanism 51, the low pressure flow adjusting mechanism 52 and the high pressure flow adjusting mechanism 53 have the same structure, that is, the back pressure adjusting mechanism 51, the low pressure flow adjusting mechanism 52 and the high pressure flow adjusting mechanism 53 are pressure adjusting mechanisms with the same structure, and can be directly replaced with each other under the condition of ensuring that the air pipes between the three pressure adjusting mechanisms and the back pressure testing device 2, the low pressure flow testing device 3 and the high pressure flow testing device 4 are unchanged.
Therefore, one set of testing equipment only needs a pressure adjusting mechanism with one specification, so that the constitution of the testing equipment is simplified, and the assembly difficulty of the pressure adjusting device 5 in the testing equipment is reduced, thereby improving the production efficiency of the testing equipment.
Example 7
As described above, the present embodiment is different from the above-described check valve flow pressure testing apparatus in that the back pressure testing device 2 in the present embodiment is provided with an upper sealing assembly 21 and a lower sealing assembly 22, the upper sealing assembly 21 and the lower sealing assembly 22 are respectively connected with two ends of the check valve 9 in a sealing manner, and the fixing clamp 11 is adapted to be located between the upper sealing assembly 21 and the lower sealing assembly 22 during testing.
Because the structures of the upper sealing mechanisms of the back pressure testing device 2, the low pressure flow testing device 3 and the high pressure flow testing device 4 are the same, that is, the upper sealing mechanisms of the same specification and model are all provided with the upper sealing assemblies 21 on the back pressure testing device 2, the low pressure flow testing device 3 and the high pressure flow testing device 4, in order to avoid repeated description, the back pressure testing device 2 is taken as an example in this embodiment. As shown in fig. 2, the back pressure testing device 2 is provided with an upper sealing component 21 and a lower sealing component 22, the upper sealing component 21 is located on the first upper sealing mechanism, the lower sealing component 22 is located on the first lower sealing mechanism, the upper sealing component 21 and the lower sealing component 22 can move up and down, in an initial state, a certain distance is reserved between the upper sealing component 21 and the lower sealing component 22, the distance is enough for the fixing clamp 11 and the check valve 9 to penetrate through, when the fixing clamp 11 rotates to the back pressure testing device 2, the upper sealing component 21 moves downwards, the lower sealing component 22 moves upwards, the distance between the upper sealing component 21 and the lower sealing component 22 is reduced, the fixing clamp 11 is clamped between the upper sealing component 21 and the lower sealing component 22, the upper sealing component 21 forms a seal with the upper end of the check valve 9, and the lower sealing component 22 forms a seal with the lower end of the check valve 9.
Thus, the two ends of the one-way valve 9 are sealed, and the influence on the accuracy or success rate of the pressure test of the one-way valve 9 caused by air leakage during the pressure test of the one-way valve 9 is avoided.
Example 8
As described above, the flow pressure testing device for check valve in this embodiment is different from the flow pressure testing device in that the pressure head 211, the spring 212 and the guide shaft 213 are disposed in the upper sealing assembly 21 in this embodiment, the pressure head 211 is fixedly connected with one end of the guide shaft 213, the spring 212 is sleeved at the other end of the guide shaft 213, and the pressure head 211 is abutted against the check valve 9 during testing.
As shown in fig. 5 and 6, the upper seal assembly 21 is provided with a pressing head 211, a spring 212, a guide shaft 213 and a bushing 214, wherein the pressing head 211 is fixed at one end of the guide shaft 213, the spring 212 is sleeved at the other end of the guide shaft 213, the bushing 214 is sleeved at the middle part of the guide shaft 213, the guide shaft 213 can slide in the bushing 214, the bushing 214 is provided to guide the sliding of the guide shaft 213, and in a test state, the pressing head 211 is abutted with the check valve 9, and the spring 212 is in a compressed state.
Thus, when the upper sealing assembly 21 is lifted upwards, the spring 212 stretches and applies a pushing force to the pressure head 211 through the guide shaft 213, so that the check valve 9 is kept on the fixed clamp 11, and after the test is finished, the upper sealing assembly 21 is removed from the check valve 9 without lifting the check valve 9, thereby ensuring the continuity in the test.
As shown in fig. 5 and 6, the connection part of the fixing clamp 11, the upper sealing assembly 21 and the lower sealing assembly 22 is provided with an O-shaped sealing ring, and sealing connection is formed through the O-shaped sealing ring; the upper sealing assembly 21 is provided with a first cavity 216 and a second cavity 217, the pressure head 211 is positioned in the second cavity 217, and a plurality of small holes are formed in the pressure head 211 so as to ensure that the first cavity 216 and the second cavity 217 are communicated, the upper vent 215 is positioned on the upper sealing assembly 21, the upper vent 215 penetrates through the side surface of the upper sealing assembly 21 and is communicated with the atmosphere, and the upper vent 215, the first cavity 216 and the second cavity 217 are communicated; the fixing clamp 11 is provided with a through hole 111, the through hole 111 is positioned below the one-way valve 9, the lower vent hole 221 is positioned on the lower sealing assembly 22, the lower sealing assembly 22 is provided with a third cavity 222, the third cavity 222 is communicated with the lower vent hole 221, and in a test state, the air outlet 92 of the one-way valve 9 is communicated with the lower vent hole 221 through the through hole 111 and the third cavity 222.
When the back pressure testing device 2 is used for testing the back pressure characteristic of the check valve 9, the upper vent hole 215 of the back pressure testing device 2 is opened, that is, a connecting pipeline and sealing are not needed, the lower vent hole 221 is connected with an air source through a second air pipe, during testing, air is conveyed into the device through the lower vent hole 221, the air pressure in the pipeline is regulated through the pressure regulating valve in the pressure regulating device 5 until the air pressure reaches a certain value, and at the moment, the air pressure value displayed on the pressure gauge in the pressure regulating device 5 is the measured back pressure of the check valve 9; when the low-pressure flow testing device 3 and the high-pressure flow testing device 4 are respectively used for testing the low-pressure flow and the high-pressure flow of the check valve 9, the upper vent hole 215 of the testing device is connected with the air source through the first air pipe, the lower vent hole 221 is opened, namely, a connecting pipeline and sealing are not needed, during testing, air is conveyed into the device through the upper vent hole 215, the air pressure in the pipeline is regulated through the pressure regulating valve in the pressure regulating device 5 until the air pressure reaches a certain value, at the moment, the air pressure value displayed on the pressure gauge in the pressure regulating device 5 is the low-pressure value or the high-pressure value of the check valve 9, and the flow value displayed on the flow gauge in the pressure regulating device 5 is the low-pressure flow or the high-pressure flow of the check valve 9.
Alternatively, since both the low pressure flow rate and the high pressure flow rate of the check valve 9 are tested by venting from the upper vent hole 215 and the lower vent hole 221 is opened, the lower seal assembly 22 in the low pressure flow rate testing device 3 and the high pressure flow rate testing device 4 is not used during the test, that is, the low pressure flow rate testing device 3 and the high pressure flow rate testing device 4 may not include the lower seal assembly 22, thus further simplifying the structure of the testing apparatus, reducing the number of parts, and thus reducing the manufacturing cost.
Example 9
As described above, the flow pressure testing device for check valve in this embodiment is different from the flow pressure testing device in that the upper sealing assembly 21 in this embodiment is provided with the fixing block 218 and the sealing ring 219, the fixing block 218 is sleeved on the sealing ring 219, the pressure head 211 is located in the sealing ring 219, and the fixing block 218 is fixedly connected with the upper sealing assembly 21.
As shown in fig. 5 and 6, the fixing block 218 connects the upper sealing assembly 21 and the fixing jig 11, and both the upper end surface and the lower end surface of the fixing block 218 are provided with O-rings, so that the upper sealing assembly 21 and the fixing jig 11 are in sealing connection through the O-rings.
Thus, the O-shaped sealing rings arranged on the upper end surface and the lower end surface of the fixed block 218 and the sealing ring 219 arranged in the fixed block 218 provide double guarantee for sealing between the air inlet 91 of the check valve 9 and the upper sealing component 21, so that the second cavity 217 is sealed when the check valve 9 is tested for low-pressure flow or high-pressure flow, external atmosphere is prevented from entering the device during testing, the testing effect is affected, and the accuracy and the success rate of testing are further improved.
Example 10
As described above, the check valve flow pressure testing apparatus in this embodiment is different from the check valve flow pressure testing apparatus in this embodiment in that the check valve flow pressure testing apparatus further includes a feeding device 6 disposed around the working turntable 1, the feeding device 6 includes a material transporting mechanism 61 and a first gripping mechanism 62, the material transporting mechanism 61 transports the check valve 9 to the working turntable 1, the first gripping mechanism 62 is fixedly connected with the material transporting mechanism 61, and carries the check valve 9 from the material transporting mechanism 61 to the fixing fixture 11.
The check valve 9 moves from the back pressure testing device 2 to the low pressure flow testing device 3 and from the low pressure flow testing device 3 to the high pressure flow testing device 4 along the rotation direction of the working turntable 1, the path with the direction is a testing assembly line of the check valve 9, the starting point of the testing assembly line is the feeding position of the working turntable 1, and the end point of the testing assembly line is the discharging position of the working turntable 1. Referring to fig. 3, the first grabbing and clamping mechanism 62 is located at the start point of the testing assembly line, that is, the first grabbing and clamping mechanism 62 is located at the feeding position of the working turntable 1, a conveying belt is arranged on the material conveying mechanism 61, the conveying belt transports the check valves 9 to the material waiting position at the tail end of the conveying belt in batches at a certain interval time, and the first grabbing and clamping mechanism 62 grabs and clamps the check valves 9 at the material waiting position on the spare fixing clamps 11 at the feeding position of the working turntable 1 in sequence, so that the feeding operation is completed.
Like this, realized adopting the mode of mechanical material loading to replace artifical material loading, not only saved the manpower, ensured operating personnel's safety, saved the material loading time of check valve 9 moreover to test equipment's work efficiency has been improved.
Example 11
The check valve flow pressure testing apparatus according to the present embodiment is different from the check valve flow pressure testing apparatus according to the present embodiment in that the check valve flow pressure testing apparatus further includes a blanking device 7 disposed around the working turntable 1, a second clamping mechanism 71 and an adjusting mechanism 72 are disposed on the blanking device 7, and the second clamping mechanism 71 and the adjusting mechanism 72 are slidably connected and take out the check valve 9 from the fixing clamp 11.
Referring to fig. 3, the blanking device 7 is located at the end of the testing line, that is, at the discharging position of the working turntable 1, the second clamping mechanism 71 may slide on the adjusting mechanism 72, and the adjusting mechanism 72 may slide up and down along the fixing rod, so as to adjust the height distance between the clamping end of the second clamping mechanism and the fixing clamp 11, so that the second clamping mechanism can better clamp the check valve 9. The check valve 9 with three tests moves to the blanking device 7 along with the working turntable 1, at this time, the check valve 9 is grabbed from the fixing clamp 11 by the grabbing end of the second grabbing mechanism 71 to finish blanking, and the emptied fixing clamp 11 rotates to the feeding device 7 along with the working turntable 1 to test the check valve 9 again, and the cycle is repeated.
Thus, automatic discharging is realized, labor is saved, safety of operators is guaranteed, discharging time of the check valve 9 is shortened, and accordingly working efficiency of the testing equipment is improved.
Example 12
The check valve flow pressure testing apparatus described above is different from the present embodiment in that the second clamping mechanism 71 in this embodiment is provided with the slider 711, the adjusting mechanism 72 is provided with the U-shaped chute 721, and the slider 711 slides in the U-shaped chute 721.
Referring to fig. 4, a slider 711 is provided on the second clamping mechanism 71, a U-shaped chute 721 having an inverted U-shaped structure is provided on the adjusting mechanism 72, a cam 722 is further provided on the adjusting mechanism 72, and one end of the cam 722 is sleeved on the slider 711.
Thus, when the cam 722 rotates around the cam shaft, the sliding block 711 is driven to slide along the U-shaped chute 721, and the clamping end of the second clamping mechanism 71 also moves synchronously, so as to realize the action of clamping the check valve 9 from the fixed clamp 11.
During blanking, the second grabbing and clamping mechanism 71 horizontally moves to the position above the check valve 9 in the fixed clamp 11, the cam 722 rotates clockwise to drive the sliding block 711 to slide downwards in the U-shaped sliding groove 721 until the check valve 9 is clamped, then the cam 722 rotates anticlockwise to drive the sliding block 711 to move upwards along the U-shaped sliding groove 721, then horizontally moves, the grabbing ends of the second grabbing and clamping mechanism 71 synchronously perform the same movement, the check valve 9 is taken out from the fixed clamp 11, and after a certain distance of upward movement, the check valve 9 is taken away from the working turntable 1, so that blanking operation is completed.
Example 13
As mentioned above, the check valve flow pressure testing device in this embodiment is different from the above-mentioned check valve flow pressure testing device in this embodiment, and further includes a sorting device 8, where the sorting device 8 is disposed near the blanking device 7, the sorting device 8 includes a material dividing groove 81 and a material collecting box 82, the material dividing groove 81 is disposed obliquely, and one end of the material dividing groove is near the edge of the working turntable 1, the other end of the material dividing groove is connected with the material collecting box 82, and the check valve 9 enters the material collecting box 82 from the material dividing groove 81.
As shown in fig. 3, the sorting device comprises two material dividing grooves 81 and a plurality of material collecting boxes 82, the whole material dividing grooves 81 are long, two ends of the material dividing grooves are respectively provided with a feed inlet and a discharge outlet, the feed inlets are close to the edge of the working turntable 1, the feed inlets of the two material dividing grooves 81 are adjacent and are arranged almost perpendicular to each other at the feed inlet, the feed inlets of the two material dividing grooves 81 are close to the discharge outlet of the working turntable 1 and are positioned at the same height with the working turntable 1, and the second clamping mechanism 71 is convenient for clamping the check valve 9 to the feed inlet of the material dividing grooves 81; the plurality of collection boxes 82 divide into two parts, and one part is used for loading the qualified single valve 9 of test, and another part is used for loading the unqualified check valve 9 of test, and the height of collection boxes 82 up end is less than the height of work revolving stage 1 ejection of compact department, and the feed inlet of dividing the silo 81 is equivalent with the height of work revolving stage 1, and the discharge gate overlap joint is at the upper edge of collection boxes 82 for dividing the silo 81 whole to be the slope setting, so that the check valve 9 is along dividing the quick gliding to collection boxes 82 of silo 81. The second grabbing and clamping mechanism 71 is used for placing the check valve 9 which is qualified in test and is grabbed from the working turntable 1 into the feed inlet of one of the material distribution tanks 81, the check valve 9 which is qualified in test slides into the corresponding material collection tank 82 from the material distribution tank 81, the second grabbing and clamping mechanism 71 is used for placing the check valve 9 which is unqualified in test into the feed inlet of the other material distribution tank 81, and the check valve 9 which is unqualified in test slides into the corresponding material collection tank 82 from the material distribution tank 81.
Therefore, the check valves 9 which are qualified and unqualified in test are collected separately by the sorting device 8, so that the accuracy and the sorting efficiency of the check valves 9 during sorting are greatly improved; the problem that the qualified products are mixed with unqualified products or the qualified products appear in the unqualified products due to fatigue when operators go to artificially sort the qualified products and the unqualified products is avoided, and after-sales or user complaints of the products are influenced.
Optionally, the check valve flow pressure testing device may further include an operation console 10, and the working turntable 1, the back pressure testing device 2, the flow testing device 3, the high pressure flow testing device 4, the pressure adjusting device 5, the feeding device 6, the discharging device 7 and the sorting device 8 are all fixed on the operation console 10.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the invention.
Claims (9)
1. A one-way valve flow pressure testing apparatus, comprising:
A working turntable (1) which performs a rotation operation; the one-way valve (9) is arranged on the working turntable (1);
The back pressure testing device (2) is arranged around the working turntable (1) and is used for testing the back pressure characteristic of the one-way valve (9), an upper sealing component (21) and a lower sealing component (22) are arranged on the back pressure testing device (2), the upper sealing component (21) and the lower sealing component (22) are respectively in sealing connection with two ends of the one-way valve (9), a pressure head (211), a spring (212) and a guide shaft (213) are arranged in the upper sealing component (21), the pressure head (211) is fixedly connected with one end of the guide shaft (213), the spring (212) is sleeved at the other end of the guide shaft (213), and the pressure head (211) is in butt joint with the one-way valve (9) during testing;
a low pressure flow rate testing device (3) arranged around the working turntable (1) for testing the low pressure flow rate of the check valve (9);
a high-pressure flow rate testing device (4) which is arranged around the working turntable (1) and is used for testing the high-pressure flow rate of the one-way valve (9);
And a pressure regulating device (5) for regulating the air pressure in the test line.
2. The one-way valve flow pressure test device according to claim 1, characterized in that a fixing clamp (11) is arranged on the working turntable (1), and the fixing clamp (11) is used for fixing the one-way valve (9).
3. The one-way valve flow pressure test equipment according to claim 2, wherein the fixing clamp (11) is of a square structure, a square mounting groove matched with the fixing clamp (11) is formed in the working turntable (1), and the fixing clamp (11) is fixed in the mounting groove.
4. The check valve flow pressure testing device according to claim 2, wherein a plurality of fixing clamps (11) are arranged in a circular array on the working turntable (1) and are suitable for being respectively corresponding to the positions of the back pressure testing device (2), the low pressure flow testing device (3) and the high pressure flow testing device (4) during testing.
5. A check valve flow pressure testing device according to claim 2, characterized in that the fixture (11) is adapted to be located between the upper sealing assembly (21) and the lower sealing assembly (22) during testing.
6. The check valve flow pressure test device according to any one of claims 2-5, further comprising a feeding device (6) arranged around the working turntable (1), wherein a material conveying mechanism (61) and a first clamping mechanism (62) are arranged on the feeding device (6), the material conveying mechanism (61) conveys the check valve (9) to the working turntable (1), the first clamping mechanism (62) is fixedly connected with the material conveying mechanism (61), and the check valve (9) is conveyed from the material conveying mechanism (61) to the fixing clamp (11).
7. The check valve flow pressure test device according to any one of claims 2-5, further comprising a blanking device (7) arranged around the working turntable (1), wherein a second clamping mechanism (71) and an adjusting mechanism (72) are arranged on the blanking device (7), the second clamping mechanism (71) is slidably connected with the adjusting mechanism (72), and the check valve (9) is taken out from the fixing clamp (11).
8. The check valve flow pressure testing device according to claim 7, wherein a sliding block (711) is arranged on the second clamping mechanism (71), a U-shaped chute (721) is arranged on the adjusting mechanism (72), and the sliding block (711) slides in the U-shaped chute (721).
9. The one-way valve flow pressure test equipment according to claim 7, further comprising a sorting device (8), wherein the sorting device (8) is arranged close to the blanking device (7), the sorting device (8) comprises a material dividing groove (81) and a material collecting box (82), the material dividing groove (81) is obliquely arranged, one end of the material dividing groove (81) is close to the edge of the working turntable (1), the other end of the material dividing groove is connected with the material collecting box (82), and the one-way valve (9) enters the material collecting box (82) from the material dividing groove (81).
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110220694A (en) * | 2019-03-20 | 2019-09-10 | 上海明氏自动化技术有限公司 | A kind of check valve sealing pushing detection device |
| CN110285960A (en) * | 2019-03-20 | 2019-09-27 | 上海明氏自动化技术有限公司 | It is pressed on a kind of check valve and flow detector |
| CN110231163A (en) * | 2019-03-20 | 2019-09-13 | 上海明氏自动化技术有限公司 | A kind of check valve detection machine |
| CN110231164A (en) * | 2019-03-20 | 2019-09-13 | 上海明氏自动化技术有限公司 | A kind of check valve pressure-detecting device |
| CN110274739A (en) * | 2019-03-20 | 2019-09-24 | 上海明氏自动化技术有限公司 | Check valve detection method |
| CN110340033B (en) * | 2019-08-01 | 2021-06-22 | 邵东智能制造技术研究院有限公司 | Pipeline air tightness testing equipment |
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| CN206648896U (en) * | 2017-04-12 | 2017-11-17 | 浙江永联阀门有限公司 | Valve hydraulic test bed |
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| JP2007278914A (en) * | 2006-04-10 | 2007-10-25 | Fukuda:Kk | Leak test method and leak tester |
| CN206648896U (en) * | 2017-04-12 | 2017-11-17 | 浙江永联阀门有限公司 | Valve hydraulic test bed |
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