CN116181814B - A safety device with an inertia safety mechanism and a performance detection method thereof - Google Patents
A safety device with an inertia safety mechanism and a performance detection method thereof Download PDFInfo
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- CN116181814B CN116181814B CN202211724816.XA CN202211724816A CN116181814B CN 116181814 B CN116181814 B CN 116181814B CN 202211724816 A CN202211724816 A CN 202211724816A CN 116181814 B CN116181814 B CN 116181814B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
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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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/16—Mechanical energy storage, e.g. flywheels or pressurised fluids
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- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
本发明公开了一种具有惯性保险机构的保险装置及其性能检测方法，属于保险技术领域。保险装置包括壳体、惯性保险机构、调节机构和动作机构。壳体内具有过载腔、调节腔和动作腔。惯性保险机构包括惯性体、销轴和第一弹簧，惯性体可滑动地插装在过载腔。调节机构包括调节柱和第二弹簧，调节柱的一端与销轴的另一端外周壁垂直且相抵。动作机构包括滑块、动作销和第三弹簧，滑块可滑动地插装在动作腔，滑块的外周壁具有弧形凹槽，滑块被配置为，当惯性体在过载下滑动并与调节柱分离后，滑块推动调节柱移动，且动作销伸出壳体。本发明实施例提供的一种具有惯性保险机构的保险装置，可以适应不同的过载条件，从而增大保险装置的保险功能。
The present invention discloses a safety device with an inertial safety mechanism and a performance detection method thereof, and belongs to the field of safety technology. The safety device includes a housing, an inertial safety mechanism, an adjusting mechanism and an actuating mechanism. An overload chamber, an adjusting chamber and an actuating chamber are provided in the housing. The inertial safety mechanism includes an inertial body, a pin and a first spring, and the inertial body can be slidably inserted in the overload chamber. The adjusting mechanism includes an adjusting column and a second spring, and one end of the adjusting column is perpendicular to and abuts against the outer peripheral wall of the other end of the pin. The actuating mechanism includes a slider, an actuating pin and a third spring, and the slider can be slidably inserted in the actuating chamber, and the outer peripheral wall of the slider has an arc-shaped groove, and the slider is configured such that when the inertial body slides under overload and separates from the adjusting column, the slider pushes the adjusting column to move, and the actuating pin extends out of the housing. A safety device with an inertial safety mechanism provided in an embodiment of the present invention can adapt to different overload conditions, thereby increasing the safety function of the safety device.
Description
Technical Field
The invention belongs to the technical field of insurance, and particularly relates to an insurance device with an inertia insurance mechanism and a performance detection method thereof.
Background
The inertial safety mechanism is generally composed of an inertial body, a spring and a pin shaft, the spring pushes the inertial body at ordinary times to enable the pin shaft to extend out of the outer end of the inertial safety mechanism, and when the inertial body senses overload, overload force overcomes the force of the spring to move so as to drive the pin shaft to retract, so that the safety function is realized. The inertial safety mechanism does not need a control system to send a safety releasing instruction to the inertial safety mechanism, and the inertial safety mechanism can release safety only by means of an overload environment and is mutually independent from the control system.
However, the individual inertial safety mechanism can only complete actions (namely realize the safety function) under the overload condition under specific conditions due to the constant mass of the inertial body and the constant stiffness coefficient of the spring in the use process, and cannot adapt to different overload conditions, so that the safety function is single.
Disclosure of Invention
In order to meet the above-mentioned defects or improvement requirements of the prior art, the present invention provides a safety device with an inertial safety mechanism and a performance detection method thereof, and aims to adjust the friction force of an adjusting column to a pin shaft by replacing a second spring, thereby adapting to different overload conditions and further increasing the safety function of the safety device.
In a first aspect, the present invention provides a safety device having an inertial safety mechanism, the safety device comprising a housing, an inertial safety mechanism, an adjustment mechanism, and an actuation mechanism;
The housing is internally provided with an overload cavity, an adjusting cavity and an action cavity which are sequentially communicated, and the adjusting mechanism is detachably arranged in the adjusting cavity;
The inertial safety mechanism comprises an inertial body, a pin shaft and a first spring, wherein the inertial body is slidably inserted in the overload cavity, one end of the pin shaft is fixed on one end of the inertial body, and two ends of the first spring are respectively propped against the other end of the inertial body and the inner wall of the shell so as to drive the inertial body to slide;
The adjusting mechanism comprises an adjusting column and a second spring, one end of the adjusting column is perpendicular to and props against the outer peripheral wall of the other end of the pin shaft, the outer peripheral wall of the adjusting column is provided with an outer flange, the outer flange is slidably inserted into the adjusting cavity, the second spring is sleeved on one end of the adjusting column, and two ends of the second spring respectively prop against the outer flange and the inner wall of the shell to drive the adjusting column to move towards the action cavity;
The action mechanism comprises a sliding block, an action pin and a third spring, wherein the sliding block is slidably inserted into the action cavity, an arc-shaped groove is formed in the peripheral wall of the sliding block, the other end of the adjusting column is movably inserted into the arc-shaped groove, one end of the action pin is fixedly connected with one end of the sliding block, the action pin extends along the sliding direction of the sliding block, the other end of the action pin penetrates through the shell, two ends of the third spring respectively abut against the other end of the sliding block and the inner wall of the shell to drive the sliding block to slide, and the sliding block is configured to push the adjusting column to move after the inertial body slides under overload and the pin shaft is separated from the adjusting column, and the action pin extends out of the shell.
Optionally, a first sealing plate is inserted on the outer wall of the shell, the first sealing plate is detachably connected with the shell to seal the action cavity, and one end of the third spring abuts against the first sealing plate.
Optionally, a guide rod is arranged on one side, facing the sliding block, of the first sealing plate, and the third spring is sleeved on the guide rod.
Optionally, the shell is provided with a tooling hole, the tooling hole is communicated with the overload cavity, the axis of the tooling hole is consistent with the sliding direction of the inertia body, and the tooling hole is opposite to the pin shaft.
Optionally, a tooling shaft is movably inserted in the tooling hole so as to squeeze and drive the pin shaft to move.
Optionally, a second sealing plate is inserted on the outer wall of the shell, the second sealing plate is detachably connected with the shell to seal the overload cavity, and one end of the first spring abuts against the second sealing plate.
Optionally, a positioning block is inserted into the adjusting cavity, a through hole is formed in the positioning block, and the other end of the adjusting column is slidably inserted into the through hole.
Optionally, the shell is provided with a limiting hole, the limiting hole is communicated with the overload cavity, an electromagnetic pin puller is inserted in the limiting hole, and the output end of the electromagnetic pin puller is used for propping against the outer wall of the inertia body so as to limit the inertia body to slide.
Optionally, the shell is provided with a mounting hole, the mounting hole is communicated with the action cavity, a third sealing plate is inserted into the mounting hole, the third sealing plate is opposite to the adjusting column, and the third sealing plate and the adjusting column are respectively located at two sides of the action cavity.
In a second aspect, the present invention provides a performance detection method of a safety device having an inertial safety mechanism, the performance detection method being based on the safety device of the first aspect, the performance detection method comprising:
Placing the safety device in a centrifugal machine, wherein the sliding direction of the inertia body is arranged along the centrifugal force direction of the centrifugal machine, and the first spring is positioned on the outer side of the inertia body;
And adjusting the centrifugal force of the centrifugal machine so as to simulate different overload forces applied to the inertial body until the action pin moves and then extends out of the shell.
The technical scheme provided by the embodiment of the invention has the beneficial effects that:
For the safety device provided by the embodiment of the invention, in the overload state, the first spring drives the inertial body to the top end of the overload cavity through elastic force. At this time, the left end of the adjusting column is perpendicular to and props against the pin shaft (the adjusting column forms friction force to the pin shaft to prevent the inertial body from moving downwards, and the adjusting column cannot move left), and under the action of the second spring, the right end of the adjusting column is inserted into the arc-shaped groove of the sliding block, and the action pin cannot extend out of the shell at this time.
In the overload state, the overload force applied to the inertia body is larger than the sum of the elastic force of the first spring and the friction force formed by the adjusting column on the pin shaft in the horizontal direction, at the moment, the inertia body moves downwards, so that the inertia body is separated from the adjusting column, the horizontal component force L 1 generated by the elastic force of the third spring on the sliding block and the adjusting column is larger than the elastic force L 2 generated by the second spring on the adjusting column, the adjusting column is driven to move leftwards, the sliding block is pushed to move upwards, and the action pin extends out of the shell, so that the safety function is realized. In the process, the inertial body moves after overload, so that the elastic force of the first spring is overcome, and meanwhile, the friction force generated by the adjusting column after the pin shaft is extruded in the horizontal direction (the friction force is positively related to L 1-L2) is overcome, so that the safety action can be finished. Because the mass of the inertia body and the stiffness coefficient of the first spring are constant, the friction force can be adjusted by changing the second spring to adjust the L 2, and then the overload force of the starting of the action pin can be adjusted, and different overload conditions can be adapted.
That is, according to the safety device with the inertial safety mechanism provided by the embodiment of the invention, the friction force of the adjusting column to the pin shaft can be adjusted by replacing the second spring, so that different overload conditions can be adapted, and the safety function of the safety device can be further improved.
Drawings
FIG. 1 is a schematic diagram of a safety device with an inertial safety mechanism in an overload condition according to an embodiment of the present invention;
FIG. 2 is a schematic view of a housing according to an embodiment of the present invention;
FIG. 3 is a cross-sectional view of a housing provided by an embodiment of the present invention;
FIG. 4 is an exploded view of an inertial safety mechanism provided by an embodiment of the present invention;
FIG. 5 is an exploded view of an adjustment mechanism provided by an embodiment of the present invention;
FIG. 6 is a schematic diagram of an actuating mechanism according to an embodiment of the present invention;
FIG. 7 is a cross-sectional view of an actuation mechanism provided by an embodiment of the present invention;
FIG. 8 is a schematic diagram of a safety device with an inertial safety mechanism in an overload condition according to an embodiment of the present invention;
FIG. 9 is a schematic diagram of a driving reset of a safety device according to an embodiment of the present invention;
FIG. 10 is an assembly schematic of an electromagnetic pin puller provided by an embodiment of the present invention;
FIG. 11 is a flow chart of a method for detecting performance of a safety device having an inertial safety mechanism according to an embodiment of the present invention;
Fig. 12 is a schematic diagram of performance detection of a safety device with an inertial safety mechanism according to an embodiment of the present invention.
The symbols in the drawings are as follows:
1. The device comprises a shell, 11, an overload cavity, 12, an adjusting cavity, 13, an action cavity, 14, a first sealing plate, 141, a guide rod, 142, a connecting bolt, 15, a tool hole, 151, a tool shaft, 16, a second sealing plate, 17, a limiting hole, 171, an electromagnetic pin puller, 18, a mounting hole, 19, a third sealing plate, 2, an inertia safety mechanism, 21, an inertia body, 211, an annular groove, 22, a pin shaft, 23, a first spring, 3, an adjusting mechanism, 31, an adjusting column, 311, an outer flange, 32, a second spring, 33, a positioning block, 4, an action mechanism, 41, a sliding block, 411, an arc groove, 42, an action pin, 43, a third spring and 5, and a centrifugal machine.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
Fig. 1 is a schematic structural view of a safety device with an inertia safety mechanism in an overload-free state according to an embodiment of the present invention, and as shown in fig. 1, the safety device includes a housing 1, an inertia safety mechanism 2, an adjusting mechanism 3 and an actuating mechanism 4.
Fig. 2 is a schematic structural view of a housing provided in an embodiment of the present invention, and fig. 3 is a cross-sectional view of a housing provided in an embodiment of the present invention, and, as shown in connection with fig. 2 and 3, the housing 1 has an overload chamber 11, an adjusting chamber 12 and an actuating chamber 13, which are sequentially communicated, and the adjusting mechanism 3 is detachably installed in the adjusting chamber 12.
Fig. 4 is an exploded view of an inertial safety mechanism according to an embodiment of the present invention, as shown in fig. 4, the inertial safety mechanism 2 includes an inertial body 21, a pin 22 and a first spring 23, the inertial body 21 is slidably inserted in the overload cavity 11, one end of the pin 22 is fixed on one end of the inertial body 21, and two ends of the first spring 23 respectively abut against the other end of the inertial body 21 and an inner wall of the housing 1 to drive the inertial body 21 to slide.
Fig. 5 is an exploded view of an adjusting mechanism provided by the embodiment of the invention, as shown in fig. 5, the adjusting mechanism 3 includes an adjusting post 31 and a second spring 32, one end of the adjusting post 31 is perpendicular to and abuts against the outer circumferential wall of the other end of the pin 22, the outer circumferential wall of the adjusting post 31 has an outer flange 311, the outer flange 311 is slidably inserted into the adjusting cavity 12, the second spring 32 is sleeved on one end of the adjusting post 31, and two ends of the second spring 32 abut against the outer flange 311 and the inner wall of the housing 1 respectively to drive the adjusting post 31 to move towards the actuating cavity 13.
Fig. 6 is a schematic structural view of an actuating mechanism according to an embodiment of the present invention, fig. 7 is a cross-sectional view of the actuating mechanism according to an embodiment of the present invention, and as shown in fig. 6 and 7, the actuating mechanism 4 includes a slider 41, an actuating pin 42 and a third spring 43, the slider 41 is slidably inserted into the actuating chamber 13, an outer peripheral wall of the slider 41 has an arc-shaped groove 411, the other end of the adjusting column 31 is movably inserted into the arc-shaped groove 411, one end of the actuating pin 42 is fixedly connected with one end of the slider 41, the actuating pin 42 extends along a sliding direction of the slider 41, the other end of the actuating pin 42 penetrates the housing 1, both ends of the third spring 43 respectively abut against the other end of the slider 41 and an inner wall of the housing 1 to drive the slider 41 to slide, the slider 41 is configured such that, when the inertial body 21 slides under overload and the pin 22 is separated from the adjusting column 31, the slider 41 pushes the adjusting column 31 to move, and the actuating pin 42 protrudes out of the housing 1.
For a safety device provided in an embodiment of the present invention, in a non-overload state (see fig. 1), the first spring 23 drives the inertial body 21 to the top end of the overload cavity 11 by elastic force. At this time, the left end of the adjusting column 31 is perpendicular to and abuts against the pin 22 (the adjusting column 31 forms a friction force against the pin 22 to block the inertial body 21 from moving downward, and the adjusting column 31 cannot move left), while the right end of the adjusting column 31 is inserted into the arc-shaped groove 411 of the slider 41 under the action of the second spring 32, and the action pin 42 cannot extend out of the housing 1.
In the overload state (see fig. 8), the overload force applied to the inertial body 21 is greater than the sum of the elastic force of the first spring 23 and the friction force of the adjusting column 31 on the pin shaft 22 in the horizontal direction, at this time, the inertial body 21 moves down to separate the inertial body 21 from the adjusting column 31, so that the horizontal component force L 1 generated by the elastic force of the third spring 43 on the slider 41 and the adjusting column 31 is greater than the elastic force L 2 generated by the second spring 32 on the adjusting column 31, thereby driving the adjusting column 31 to move left, and the slider 41 is pushed to move up to extend the action pin 42 out of the housing 1, thereby realizing the safety function. In this process, the inertial body 21 moves after overload, not only overcoming the elastic force of the first spring 23, but also overcoming the friction force generated by the adjusting column 31 pressing the pin 22 in the horizontal direction (the friction force is positively correlated with L 1-L2), so as to complete the safety action. Since the mass of the inertial body 21 and the stiffness coefficient of the first spring 23 are constant, the second spring 32 of the adjusting mechanism 3 can be replaced to adjust the size of the L 2 (i.e. adjust the difference value of the L 1-L2), so as to adjust the friction force, and further adjust the overload force of the actuating pin 42 when starting, so that different overload conditions can be adapted.
That is, according to the safety device with the inertial safety mechanism provided by the embodiment of the invention, the friction force of the adjusting column 31 to the pin shaft 22 can be adjusted by replacing the second spring 32, so that different overload conditions can be adapted, and the safety function of the safety device can be further improved.
Illustratively, the material of the conditioning column 31 may be 40Cr. The travel of the third spring 43 is 8-10mm.
Illustratively, the overload chamber 11, the adjustment chamber 12 and the actuation chamber 13 may each be of a T-shaped configuration.
Referring again to fig. 6 and 7, a first sealing plate 14 is inserted on the outer wall of the housing 1, the first sealing plate 14 and the housing 1 are detachably connected to seal the actuating chamber 13, and one end of a third spring 43 abuts against the first sealing plate 14.
In the above embodiment, not only sealing of the operation chamber 13 but also easy installation and maintenance of the operation mechanism 4 can be achieved by the first sealing plate 14.
Illustratively, a connecting bolt 142 is inserted into the first sealing plate 14, and the first sealing plate 14 and the housing 1 are connected by the connecting bolt 142. In addition, both ends of the slider 41 are chamfered so as to press the adjustment column 31 to move left when the slider 41 is mounted or operated.
Illustratively, the bottom end of the slider 41 has a positioning groove, and the top end of the third spring 43 is inserted into the positioning groove, thereby positioning the third spring 43. Similarly, the bottom end of the inertial body 21 is also provided with a positioning groove.
Further, the side of the first sealing plate 14 facing the sliding block 41 is provided with a guide rod 141, and the third spring 43 is sleeved on the guide rod 141, so that the third spring 43 is guided by the guide rod 141, and bending and dislocation of the third spring 43 in the expansion and contraction process are avoided.
As shown in fig. 2 and 3, in this embodiment, the housing 1 has a tooling hole 15, the tooling hole 15 is communicated with the overload cavity 11, the axis of the tooling hole 15 is consistent with the sliding direction of the inertial body 21, and the tooling hole 15 is opposite to the pin 22.
In the above embodiment, by inserting the pushing mechanism (for example, a tool shaft 151 described later) into the tool hole 15, the pin 22 and the inertial body 21 can be reset after the operation of the operation pin 42 (in a non-overload state), the limit of the pin 22 on the adjustment column 31 is released, and at this time, the operation pin 42 can be recovered by pressing the operation pin 42 again, so that the safety device can be reset.
Illustratively, a tooling shaft 151 is movably inserted into the tooling hole 15 to press the drive pin 22 for movement.
Fig. 9 is a schematic diagram of driving and resetting of the safety device according to the embodiment of the present invention, as shown in fig. 9, in a non-overload state, the pin 22 and the inertial body 21 are moved downward by inserting the tool shaft 151 into the tool hole 15. After the pin shaft 22 moves below the adjusting column 31, the pin shaft 22 is kept pressed by the tool shaft 151, the actuating pin 42 is driven by external force, the actuating pin 42 drives the adjusting column 31 to move left until the adjusting column 31 is finally moved right and is inserted into the arc-shaped groove 411, at the moment, the tool shaft 151 is removed firstly, the pin shaft 22 and the inertia body 21 move upwards again under the action of the first spring 23, the left end of the adjusting column 31 is propped against the pin shaft 22, the extrusion force on the actuating pin 42 is removed, and the safety device is reset to reach the non-overload state shown in fig. 1, so that the safety device is reused.
In this embodiment, the second sealing plate 16 is inserted on the outer wall of the housing 1, and the second sealing plate 16 is detachably connected to the housing 1 to seal the overload cavity 11, and one end of the first spring 23 abuts against the second sealing plate 16.
In the above embodiment, not only the sealing of the overload chamber 11 but also the easy installation and maintenance of the inertia lock mechanism 2 can be achieved by the second sealing plate 16.
The second seal plate 16 may be a press screw, for example.
In addition, a positioning block 33 is inserted into the adjusting cavity 12, a through hole is formed in the positioning block 33, and the other end of the adjusting column 31 is slidably inserted into the through hole.
In the above embodiment, the positioning block 33 plays a role of guiding the sliding of the adjustment column 31, and ensures the stability of the sliding of the adjustment column 31.
Illustratively, the two ends of the adjusting post 31 are arc-shaped, the left end of the positioning block 33 has a groove communicated with the through hole, and the outer flange 311 is slidably engaged with the groove.
Fig. 10 is an assembly schematic diagram of an electromagnetic pin puller provided in the embodiment of the invention, as shown in fig. 10, a limiting hole 17 is formed in a housing 1, the limiting hole 17 is communicated with an overload cavity 11, an electromagnetic pin puller 171 is inserted into the limiting hole 17, and an output end of the electromagnetic pin puller 171 is used for abutting against an outer wall of an inertial body 21 so as to limit the sliding of the inertial body 21.
In the above embodiment, the electromagnetic pin puller 171 can limit the inertial body 21, so as to avoid the situation that the inertial body 21 accidentally moves to cause the action pin 42 to extend out of the housing 1 under non-test environments such as transportation, carrying and the like, and ensure that the safety device is always in an initial state (i.e. non-overload state).
In the test environment, the output end of the electromagnetic pin puller 171 is recovered, and the limitation of the inertial body 21 is released.
Illustratively, the outer peripheral wall of the inertial body 21 has an annular groove 211, and the output end of the electromagnetic pin puller 171 is movably inserted in the annular groove 211.
In this embodiment, the housing 1 has a mounting hole 18, the mounting hole 18 is communicated with the actuating chamber 13, a third sealing plate 19 is inserted into the mounting hole 18, the third sealing plate 19 is opposite to the adjusting column 31, and the third sealing plate 19 and the adjusting column 31 are respectively located at two sides of the actuating chamber 13.
In the above embodiment, the third sealing plate 19 can not only facilitate the attachment and detachment of the adjustment mechanism 3 to and from the operation chamber 13, but also realize the sealing of the operation chamber 13.
Illustratively, the adjusting mechanism 3 is installed through the installation hole 18, the actuating mechanism 4 is installed through the first sealing plate 14, and the inertia protecting mechanism 2 is installed through the second sealing plate 16 (when the inertia protecting mechanism 2 is installed, the actuating pin 42 is propped against by external force, so as to prevent the actuating pin from extending out of the housing 1).
The third sealing plate 19 and the mounting hole 18 may be disposed above the adjusting chamber 12, and the adjusting mechanism 3 may be easily assembled and disassembled.
Fig. 11 is a flowchart of a performance detection method of a safety device with an inertial safety mechanism according to an embodiment of the present invention, as shown in fig. 11, where the performance detection method is based on the safety device, and the performance detection method includes:
S101, the safety device is placed in the centrifuge 5, and the sliding direction of the inertial body 21 is arranged along the centrifugal force direction of the centrifuge 5, and the first spring 23 is located outside the inertial body 21 (see fig. 12).
Illustratively, the safeties are placed at the outer edge of the table of the centrifuge 5.
S102, adjusting the centrifugal force of the centrifugal machine 5, so as to simulate different overload forces applied to the inertial body 21 until the action pin 42 is moved and then extends out of the shell 1.
For the performance detection method of the safety device with the inertial safety mechanism provided by the embodiment of the invention, different overload conditions can be simulated through the centrifugal machine 5 until the safety devices of various types (different overload forces of the safety devices of different types) are tested and verified to realize the overload conditions corresponding to the safety function. Due to errors in manufacturing, if the overload conditions of the safeties do not meet the specified performance parameters, the second springs 32 can be replaced, so that not only can the overload conditions of the safeties of different types be tested and verified, but also the overload conditions of the safeties of the same type can be controlled within a reasonable range, and the consistency of products is improved.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (10)
1. A safety device with an inertial safety mechanism, which is characterized in that the safety device comprises a shell (1), an inertial safety mechanism (2), an adjusting mechanism (3) and an actuating mechanism (4);
The shell (1) is internally provided with an overload cavity (11), an adjusting cavity (12) and an action cavity (13) which are sequentially communicated, and the adjusting mechanism (3) is detachably arranged in the adjusting cavity (12);
The inertial safety mechanism (2) comprises an inertial body (21), a pin shaft (22) and a first spring (23), wherein the inertial body (21) is slidably inserted into the overload cavity (11), one end of the pin shaft (22) is fixed on one end of the inertial body (21), and two ends of the first spring (23) are respectively propped against the other end of the inertial body (21) and the inner wall of the shell (1) so as to drive the inertial body (21) to slide;
The adjusting mechanism (3) comprises an adjusting column (31) and a second spring (32), one end of the adjusting column (31) is perpendicular to and props against the outer circumferential wall of the other end of the pin shaft (22), the outer circumferential wall of the adjusting column (31) is provided with an outer flange (311), the outer flange (311) is slidably inserted into the adjusting cavity (12), the second spring (32) is sleeved on one end of the adjusting column (31), and two ends of the second spring (32) respectively prop against the outer flange (311) and the inner wall of the shell (1) to drive the adjusting column (31) to move towards the action cavity (13);
The actuating mechanism (4) comprises a sliding block (41), an actuating pin (42) and a third spring (43), wherein the sliding block (41) is slidably inserted into the actuating cavity (13), the peripheral wall of the sliding block (41) is provided with an arc-shaped groove (411), the other end of the adjusting column (31) is movably inserted into the arc-shaped groove (411), one end of the actuating pin (42) is fixedly connected with one end of the sliding block (41), the actuating pin (42) extends along the sliding direction of the sliding block (41), the other end of the actuating pin (42) penetrates through the shell (1), two ends of the third spring (43) are respectively abutted against the other end of the sliding block (41) and the inner wall of the shell (1) to drive the sliding block (41) to slide, and the sliding block (41) is configured to push the sliding block (41) to move after the inertial body (21) slides under overload and the pin shaft (22) is separated from the adjusting column (31), and the actuating pin (42) extends out of the shell (1).
2. A safety device with an inertial safety mechanism according to claim 1, characterized in that a first sealing plate (14) is inserted on the outer wall of the housing (1), the first sealing plate (14) is detachably connected with the housing (1) to seal the actuating chamber (13), and one end of the third spring (43) abuts against the first sealing plate (14).
3. A safety device with an inertial safety mechanism according to claim 2, characterized in that the side of the first sealing plate (14) facing the slider (41) is provided with a guide rod (141), and the third spring (43) is sleeved on the guide rod (141).
4. A safety device with an inertial safety mechanism according to claim 1, characterized in that the housing (1) has a tooling hole (15), the tooling hole (15) is communicated with the overload cavity (11), the axis of the tooling hole (15) is consistent with the sliding direction of the inertial body (21), and the tooling hole (15) is opposite to the pin shaft (22).
5. A safety device with an inertial safety mechanism according to claim 4, characterized in that the tool shaft (151) is movably inserted into the tool hole (15) to press and drive the pin shaft (22) to move.
6. A safety device with an inertial safety mechanism according to claim 1, characterized in that a second sealing plate (16) is inserted on the outer wall of the housing (1), the second sealing plate (16) being detachably connected to the housing (1) to seal the overload cavity (11), one end of the first spring (23) being in abutment with the second sealing plate (16).
7. A safety device with an inertial safety mechanism according to claim 1, characterized in that a positioning block (33) is inserted in the adjusting cavity (12), a through hole is formed on the positioning block (33), and the other end of the adjusting column (31) is slidably inserted in the through hole.
8. A safety device with an inertial safety mechanism according to any one of claims 1-7, characterized in that the housing (1) is provided with a limiting hole (17), the limiting hole (17) is communicated with the overload cavity (11), an electromagnetic pin puller (171) is inserted into the limiting hole (17), and an output end of the electromagnetic pin puller (171) is used for abutting against an outer wall of the inertial body (21) so as to limit the sliding of the inertial body (21).
9. A safety device with an inertial safety mechanism according to any one of claims 1-7, characterized in that the housing (1) is provided with a mounting hole (18), the mounting hole (18) is communicated with the actuating chamber (13), a third sealing plate (19) is inserted into the mounting hole (18), the third sealing plate (19) is opposite to the adjusting column (31), and the third sealing plate (19) and the adjusting column (31) are respectively located at two sides of the actuating chamber (13).
10. A method of performance detection of a safety device having an inertial safety mechanism, the method being based on the safety device of any one of claims 1-9, the method comprising:
-placing the safety device in a centrifuge (5) with the sliding direction of the inertial body (21) arranged in the centrifugal force direction of the centrifuge (5), the first spring (23) being located outside the inertial body (21);
The centrifugal force of the centrifugal machine (5) is regulated so as to simulate different overload forces applied to the inertial body (21) until the action pin (42) protrudes out of the shell (1) after action.
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| CN202211724816.XA CN116181814B (en) | 2022-12-30 | 2022-12-30 | A safety device with an inertia safety mechanism and a performance detection method thereof |
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| CN202211724816.XA CN116181814B (en) | 2022-12-30 | 2022-12-30 | A safety device with an inertia safety mechanism and a performance detection method thereof |
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| CN116181814B true CN116181814B (en) | 2025-06-06 |
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789929A (en) * | 2004-12-14 | 2006-06-21 | 梅特勒-托莱多有限公司 | Weighing module having an overload protection arrangement |
| CN111005676A (en) * | 2020-01-03 | 2020-04-14 | 广州利何机械科技有限公司 | Soil exploration drilling device with drill bit overload protection function |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH386783A (en) * | 1961-06-13 | 1965-01-15 | Massey Schlatter Ag | Hydraulic overload protection device |
| CN102001193A (en) * | 2010-11-03 | 2011-04-06 | 荣成锻压机床有限公司 | Hydraulic overload protective device |
| DE102013205000A1 (en) * | 2013-03-21 | 2014-09-25 | M.A.T. Malmedie Antriebstechnik Gmbh | Overload protection device for cable strands |
| CN204397745U (en) * | 2015-01-20 | 2015-06-17 | 林群富 | The adjustable antioverloading screwdriver of a kind of telescopic handle load |
| CN208281446U (en) * | 2018-05-23 | 2018-12-25 | 中国工程物理研究院电子工程研究所 | The low acceleration overload of mechanical and electronic combined formula drives safety device |
| CN114777582B (en) * | 2022-05-06 | 2023-06-09 | 南京理工大学 | Mechanical activation device for low-emission overload missile-borne thermal battery |
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2022
- 2022-12-30 CN CN202211724816.XA patent/CN116181814B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1789929A (en) * | 2004-12-14 | 2006-06-21 | 梅特勒-托莱多有限公司 | Weighing module having an overload protection arrangement |
| CN111005676A (en) * | 2020-01-03 | 2020-04-14 | 广州利何机械科技有限公司 | Soil exploration drilling device with drill bit overload protection function |
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| CN116181814A (en) | 2023-05-30 |
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