CN219870810U - A device for testing the compressive strength of pellets - Google Patents

Abstract

The utility model relates to a pellet compressive strength detection device which comprises a detection table, a stabilizing frame and a pressure head, wherein the stabilizing frame and the pressure head are arranged on the detection table, a lower motor is arranged on the stabilizing frame, the output end of the lower motor is connected with a threaded sleeve plate through a screw rod, the threaded sleeve plate is connected with a fixed plate, and the bottom of the fixed plate is provided with a lifting plate. According to the pellet compressive strength detection device, the motor is adopted to drive the lifting plate to move up and down so as to complete primary pressurization of the pressure head, and the lifting plate and the fixed plate are combined to move relatively so as to realize secondary pressurization of the pressure head.

Description

A device for testing the compressive strength of pellets

Technical field

The utility model relates to the technical field of pellet detection, and more specifically, to a pellet compressive strength detection device.

Background technique

Compressive strength is an important performance index of finished pellets, which directly affects the metallurgical properties of pellets. Whether it is oxidized pellets used for blast furnace iron smelting or direct reduction pellets used for shaft furnace smelting, the compressive strength needs to be measured before smelting. When measuring the compressive strength of finished pellets, the finished pellet samples with complete particles are usually tested at room temperature;

For example, the patent publication number is CN202220999675.1, a pellet compressive strength testing device, including a power device, a workbench located on the top of the frame, an electric control box fixed on the workbench and electrically connected to the power device, and a workbench equipped with There is a vibrating plate, and a feeding device is connected to the vibrating plate. The connection point between the vibrating plate and the feeding device is equipped with a feeding device fixed on the workbench. The feeding device is equipped with a material receiving device at one end away from the vibrating plate. There is a material receiving device above the space of the material receiving device. The material pressing device and the material receiving device are equipped with a pushing device on the side away from the feeding device. The pushing device, the material pressing device, the material receiving device, the vibration plate and the material ejecting device are all connected to the power device;

The above-mentioned detection device still has the following shortcomings during use: that is, the detection method is still too single. When the above compressive strength detection device detects the compressive strength, it can still only measure the maximum compressive strength using a single compression method. The test results obtained by this detection method can no longer guide current production better. Because under the trend of carbon emission reduction, steel companies are gradually increasing the use proportion of pellets with lower carbon emissions (relative to sinter). However, many steel companies do not have supporting pellet production lines, or the output of the original pellet production lines is not enough. In the future, after the pellets are produced, they may be transported several times before being sent to the blast furnace or shaft furnace for smelting; the pellets will inevitably be impacted repeatedly during the transport process.

However, the existing compressive strength testing device has a single detection method and cannot detect the ability of pellets to resist repeated impact forces. In view of the above situation, this application is submitted.

Utility model content

The purpose of this utility model is to provide a pellet compressive strength detection device, which can carry out pressure detection and splash protection of iron pellets through a strength detection platform, and is provided with two modes of continuous pressing and repeated pressing. The compression test of the iron pellets by the pressure plate completes the advantages of testing the compressive strength of the iron pellets in various ways, which brings certain beneficial effects to actual use and solves the problems raised in the above background technology.

According to one aspect of the present utility model, a pellet compressive strength detection device is provided, which includes a detection platform, a stabilizer mounted on the detection platform, and a press head. The stabilizer is equipped with a pressing motor, and the The output end of the push-down motor is connected to a threaded sleeve plate through a screw rod. A fixed plate is connected to the threaded sleeve plate. A lifting plate is provided at the bottom of the fixed plate. The pressure head is arranged in the middle of the lifting plate. The middle part of the detection platform is provided with a pressure groove that is adapted to the pressure head, and a feeding slot is provided on the detection platform; a locking motor is embedded in the middle part of the fixed plate, and the output end of the locking motor is equipped with There is a locking rod, and the outer circumferential surface of the locking rod is provided with two positioning rods at intervals, and a locking groove adapted to the locking rod is provided on the lifting plate, and the locking groove is A limiting groove adapted to the positioning rod is provided on the inner circular surface.

Based on the above solution, preferably, guide rods are provided on both sides of the stabilizer, and guide grooves adapted to the guide rods are provided on the threaded cover plate.

Based on the above solution, it is preferred that mounting plates are provided on both sides of the fixed plate, a driving motor is installed on the mounting plate, and an elliptical plate is provided at the end of the driving motor; both ends of the lifting plate are provided with The mounting plate is parallel to the side plate.

Based on the above solution, it is preferred that a gas spring is provided on the detection platform, and the end surface of the side plate conflicts with the gas spring.

Based on the above solution, preferably, the length of the side plate is greater than the length of the mounting plate.

Based on the above solution, preferably, the detection platform is further provided with a splash-proof cover, and the diameter of the splash-proof cover is greater than the distance between the two gas springs.

Based on the above solution, preferably, the limiting groove includes a vertical groove and a transverse groove, the length of the vertical groove is symmetrically arranged along the height direction of the locking groove, and the transverse grooves are two and are arranged at intervals. in the height direction of the locking groove.

Based on the above solution, it is preferred that the detection platform is further provided with an electric cylinder, the end of the electric cylinder is connected with a baffle, and the cross section of the baffle is adapted to the cross section of the feed chute.

Based on the above solution, it is preferred that a T-shaped sliding rod is fixedly installed on the lifting plate, and a T-shaped chute adapted to the T-shaped sliding rod is provided on the fixed plate.

The utility model is a pellet compressive strength detection device that uses a motor to drive the lifting plate to move up and down to complete the one-time pressurization of the pressure head, and combined with the relative movement of the lifting plate and the fixed plate, the pressure head can be realized The second pressurization, and finally, the locking motor drives the unlocking of the locking rod, and cooperates with the action of the elliptical plate to realize the third pressurization of the indenter, thereby achieving the compressive strength test of the repeated blows of the iron pellets.

Description of the drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings without exerting creative efforts. In the attached picture:

Figure 1 is a front view of the utility model;

Figure 2 is a front cross-sectional view of the utility model;

Figure 3 is a schematic structural diagram of the positioning rod of the present utility model;

Figure 4 is an enlarged view of point A of the present utility model;

Figure 5 is an enlarged view of position B of the present utility model.

Explanation of reference numbers:

In the picture: 1. Testing table; 2. Stabilizing frame; 3. Press down motor; 4. Screw; 5. Threaded sleeve plate; 6. Fixing plate; 7. Locking motor; 8. Locking rod; 81. Positioning Rod; 9. Lifting plate; 10. Locking slot; 11. Drive motor; 12. Oval plate; 13. Side plate; 14. Gas spring; 15. Pressure head; 16. Feed chute; 17. Electric cylinder; 18 , Baffle; 19. Guide rod; 20. Guide groove; 21. T-shaped slide rod; 22. T-shaped chute; 24. Card plate; 25. Card groove; 23. Pressure groove.

Detailed ways

The specific implementation manner of the present utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not used to limit the scope of the present invention.

It will be understood that, when used in this specification and the appended claims, the term "comprising" indicates the presence of the described features, integers, steps, operations, elements and/or components but does not exclude one or more other features, The existence or addition of an integer, step, operation, element, component, and/or set.

In order to keep the drawings concise, only the parts related to the present utility model are schematically shown in each figure, and they do not represent the actual structure of the product. In addition, in order to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is schematically illustrated or labeled. In this article, "a" not only means "only one", but can also mean "more than one".

It will be further understood that the term "and/or" as used in this specification and the appended claims refers to and includes any and all possible combinations of one or more of the associated listed items. .

In the embodiments shown in the drawings, directions such as up, down, left, right, front and back are used to explain that the structure and movement of the various components of the present invention are not absolute but relative. These descriptions are appropriate when the components are in the position shown in the drawings. If the instructions for the location of these components change, the instructions for these directions will change accordingly.

In addition, in the description of the present application, the terms "first", "second", etc. are only used to differentiate the description and cannot be understood as indicating or implying relative importance.

In order to explain the embodiments of the present utility model or the technical solutions in the prior art more clearly, the specific implementation manner of the present utility model will be described below with reference to the accompanying drawings. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without exerting creative efforts, other drawings can also be obtained based on these drawings, and Get other implementations.

Please refer to Figure 1, combined with Figures 2 and 3, a pellet compressive strength testing device of the present invention includes a testing platform 1, a stabilizer 2 installed on the testing platform 1, and a pressure head 15. The testing platform 1 is used to provide a foundation for pressure and installation, while the stabilizer 2 is used to provide a power installation foundation and space for the downward movement of the pressure head 15, and the pressure head 15 is used to act on the testing platform 1 to exert force. .

Specifically, the detection platform 1 of the present invention can be a circular or square structure, and a pressure groove 23 adapted to the pressure head 15 is provided in the middle of the detection platform 1. In order to realize automatic feeding of iron pellets, , the present utility model is also provided with a feed chute 16 on the detection platform 1. It is preferred to design the feed chute 16 in an inclined shape. With this design, the iron pellets can automatically enter the pressure chute 23 by utilizing their own gravity. , to realize its automatic feeding.

After the iron pellets enter the pressure groove 23, when the pressure head 15 acts on the iron pellets, in order to prevent the iron pellets from being forced back to the feed chute 16 along the feed chute 16, the utility model also An electric cylinder 17 is provided on the testing platform 1. The output end of the electric cylinder 17 is connected to a baffle 18, and the baffle 18 contacts the outlet of the feed chute 16, and the cross section of the baffle 18 is consistent with the cross section of the feed chute 16. adaptation.

In order to further ensure the sealing effect of the baffle 18, the feed chute 16 of the present utility model can be designed as a feed hole, and a slot 25 is provided on the detection platform 1 at the top of the feed hole, and a slot 25 is provided on the top of the baffle 18. The card slot 25 is adapted to the card plate 24.

Please continue to refer to Figure 2. The stabilizer 2 of the present invention has a π-shaped structure design. The stabilizer 2 is composed of pillars and a top plate. There are four or two pillars installed on the detection platform 1, and the top plate is erected on the pillars. On the top of the machine, the push-down motor 3 is installed on the top plate. The output end of the push-down motor 3 is equipped with a screw rod 4. The screw rod 4 is connected with a threaded sleeve plate 5 through threads. In order to realize the up and down movement of the threaded sleeve plate 5, A guide rod 19 is also provided at the bottom of the top plate, and a guide groove 20 adapted to the guide rod 19 is provided on the threaded sleeve plate 5. In this way, when the push-down motor 3 drives the screw 4 to rotate, due to the guide rod 19 and the guide The function of the groove 20 can orient the rotational movement of the threaded sleeve plate 5 into a linear up-and-down movement, thereby achieving a downward pressing effect on the bottom pressure head 15.

Please continue to refer to Figure 3. A T-shaped slide bar 21 is fixedly installed on the lifting plate 9, and a T-shaped chute 22 adapted to the T-shaped slide bar 21 is provided on the fixed plate 6. Both sides of the fixed plate 6 A mounting plate is provided on the side, a driving motor 11 is installed on the mounting plate, and an elliptical plate 12 is installed at the end of the driving motor 11. Side plates 13 parallel to the mounting plate are installed on both sides of the lifting plate 9. The side plates 13 are connected to the installation plate. The distance between the plates is less than the longitudinal length of the oval plate 12, and the length of the side plate 13 is greater than the length of the mounting plate.

When the driving motor 11 works to drive the elliptical plate 12 to rotate, the elliptical plate 12 collides with the side plate 13 and exerts force on the side plate 13, thereby combining with the up and down movement of the T-shaped slide rod 21 in the T-shaped chute 22, causing the lifting and lowering of the elliptical plate 12. The plate 9 moves downward relative to the fixed plate 6, thereby realizing the secondary pressurization of the pressure head 15.

Please continue to refer to Figure 4. In this utility model, a gas spring 14 is provided on the detection platform 1. The end surface of the side plate 13 conflicts with the gas spring 14, and a locking motor 7 is embedded in the middle of the fixed plate 6. The locking motor 7 The output end of the locking rod 8 is equipped with a locking rod 8, and the outer circumferential surface of the locking rod 8 is provided with two positioning rods 81 at intervals, and a locking groove 10 adapted to the locking rod 8 is provided on the lifting plate 9 , and a limiting groove adapted to the positioning rod 81 is provided on the inner circumferential surface of the locking groove 10 .

Specifically, the limiting groove includes a vertical groove and a transverse groove. The length of the vertical groove is symmetrically arranged along the height direction of the locking groove 10. There are two transverse grooves and they are spaced apart from each other on the locking groove 10. The height direction of slot 10.

When in use, the locking motor 7 works to drive the locking rod 8 to rotate in the locking groove 10. When the positioning rod 81 on the locking rod 8 is in the transverse groove, at this time, there is a gap between the lifting plate 9 and the fixed plate 6. The relative position is fixed, and when the positioning rod 81 is in the vertical groove, the relative position between the lifting plate 9 and the fixed plate 6 is movable. At this time, the rotation of the elliptical plate 12 can be used to drive Its lifting plate 9 moves up and down.

When the pellet compressive strength detection device is in use, the feed chute 16 is used to input iron pellets, and the electric cylinder 17 is operated to control the lifting and lowering of the baffle 18, thereby releasing the internal sealing state of the feed chute 16, and the iron pellets can be discharged. The pellets are guided to the pressure groove 23 of the detection table 1, and then are started again to raise the baffle 18 to block the outlet of the feed chute 16. The setting of the clamping plate 24 and the clamping slot 25 ensures the stable effect after the baffle 18 is fixed. , the push-down motor 3 starts to drive the screw 4 to rotate. Through the settings of the guide rod 19 and the guide groove 20, the movement trajectory of the threaded sleeve plate 5 is limited, so that the rotation of the screw 4 can drive the threaded sleeve plate 5 to move. The movement of the threaded sleeve plate 5 can drive the fixed plate 6 to move, and then drive the pressure head 15 to test the compressive strength of the iron pellets, thereby achieving continuous extrusion testing in a strong pressure manner.

When repeated impact detection of iron pellets is required, the staff can start the locking motor 7 to drive the locking rod 8 to rotate, unlocking the side slot locking of the inner wall of the locking slot, and the subsequent operation of the driving motor 11 can drive the elliptical plate 12 By rotating, the rotation of the elliptical plate 12 can push up the side plate 13 and move downward. Under the elastic action of the gas spring 14, the lifting plate 9 can repeatedly move up and down. Through the settings of the T-shaped sliding rod 21 and the T-shaped chute 22, By ensuring the balance of the lifting plate 9 and preventing oblique movement, the compressive strength test of the iron pellets can be carried out by repeated blows, and various methods of testing the compressive strength of the iron pellets can be completed.

A pellet compressive strength detection device of the present invention uses a motor to drive the lifting plate 9 to move up and down to complete one pressurization of the pressure head 15, and combines the relative movement between the lifting plate 9 and the fixed plate 6 to achieve The second pressurization of the press head 15 is realized. Finally, the locking motor 7 drives the locking rod 8 to unlock, and cooperates with the action of the oval plate 12 to realize the third pressurization of the press head 15, thereby achieving repeated blows to the iron pellets. Perform a compressive strength test.

Finally, the method of this application is only a preferred embodiment and is not used to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims (9)

1. A pellet compressive strength testing device, which is characterized in that it includes a testing platform, a stabilizer and a pressure head installed on the testing platform. The stabilizer is equipped with a lower pressure motor, and the lower piezoelectric The output end of the machine is connected to a threaded sleeve plate through a screw rod. A fixed plate is connected to the threaded sleeve plate. A lifting plate is provided at the bottom of the fixed plate. The pressure head is set in the middle of the lifting plate. In the detection platform There is a pressure groove that matches the pressure head, and a feeding groove is provided on the detection table; a locking motor is embedded in the middle of the fixed plate, and the output end of the locking motor is equipped with a locking rod, and the outer circumferential surface of the locking rod is provided with two positioning rods at intervals, and the lifting plate is provided with a locking groove that matches the locking rod, and the inner circular surface of the locking groove is There is a limiting groove adapted to the positioning rod. 2. A pellet compressive strength detection device as claimed in claim 1, characterized in that guide rods are provided on both sides of the stabilizer, and a guide rod is provided on the threaded cover plate that is adapted to the guide rods. guide groove. 3. A pellet compressive strength detection device according to claim 1, characterized in that mounting plates are provided on both sides of the fixed plate, and a driving motor is installed on the mounting plate, and the driving motor is An elliptical plate is provided at the end; and side plates parallel to the mounting plate are provided at both ends of the lifting plate. 4. A pellet compressive strength detection device according to claim 3, characterized in that a gas spring is provided on the detection platform, and the end surface of the side plate conflicts with the gas spring. 5. A pellet compressive strength detection device according to claim 4, characterized in that the length of the side plate is greater than the length of the installation plate. 6. A pellet compressive strength detection device as claimed in claim 4, characterized in that the detection platform is further provided with a splash-proof cover, and the diameter of the splash-proof cover is larger than one of the two gas springs. spacing between. 7. A pellet compressive strength detection device according to claim 4, wherein the limiting groove includes a vertical groove and a transverse groove, and the length of the vertical groove is along the length of the locking groove. are arranged symmetrically in the height direction, and there are two transverse grooves and are arranged at intervals in the height direction of the locking groove. 8. A pellet compressive strength testing device as claimed in claim 4, characterized in that an electric cylinder is also provided on the testing platform, and an end of the electric cylinder is connected with a baffle, and the baffle The cross-section is adapted to the cross-section of the feed chute. 9. A pellet compressive strength detection device as claimed in claim 4, characterized in that a T-shaped sliding rod is fixedly installed on the lifting plate, and a T-shaped sliding rod is provided on the fixed plate. T-shaped slider adapted to the sliding rod.