A performance testing device for wear-resistant cylinder liners

Abstract

This utility model relates to the field of wear-resistant cylinder liner production technology. It discloses a performance testing device for wear-resistant cylinder liners, including a test bench, a display, and a support plate. The display is fixedly installed on the front side of the test bench, and the support plate is fixedly connected to the top of the test bench. The top of the test bench has a placement groove and a first sliding groove. A fixing plate is fixedly connected to the front side of the support plate. This utility model, by setting up a clamping mechanism and an adjusting mechanism, uses the clamping mechanism to fix the wear-resistant cylinder liner, and the adjusting mechanism further improves the applicability of the clamping mechanism. This solves the problem that, to ensure the processing quality of the wear-resistant cylinder liner, it is necessary to test its hardness during production, thereby ensuring the subsequent processing effect. Traditional technologies mostly rely on manual testing for hardness, which is time-consuming, labor-intensive, inefficient, and lacks practicality, and also lacks effective fixation for the wear-resistant cylinder liner.

Description

Technical Field

[0001] This utility model belongs to the field of wear-resistant cylinder liner production technology, and in particular relates to a performance testing device for wear-resistant cylinder liners. Background Technology

[0002] The main function of wear-resistant cylinder liners is to reduce friction between the piston and cylinder wall, protecting the cylinder wall from wear. Because the friction between the piston and cylinder wall is very high during engine operation, cylinder liners need to have excellent wear resistance to extend engine life.

[0003] The problem with the above technology is that, in order to ensure the processing quality of wear-resistant cylinder liners, it is necessary to test their hardness during production to ensure the subsequent processing effect. Traditional technologies mostly rely on manual testing for hardness, which is time-consuming, labor-intensive, inefficient, and lacks practicality. It also lacks effective fixation for wear-resistant cylinder liners. Utility Model Content

[0004] In view of the problems existing in the prior art, this utility model provides a performance testing device for wear-resistant cylinder liners that can overcome or at least partially solve the above problems.

[0005] This utility model is implemented as follows: a performance testing device for wear-resistant cylinder liners includes a test bench, a display, and a support plate. The display is fixedly installed on the front side of the test bench, and the support plate is fixedly connected to the top of the test bench. The top of the test bench has a placement groove and a first sliding groove. A fixing plate is fixedly connected to the front side of the support plate, and a limit groove is opened on the front side of the support plate. A hydraulic cylinder is fixedly connected to the inner wall of the fixing plate. The top of the hydraulic cylinder passes through the fixing plate and extends upward. A horizontal plate is fixedly connected to the telescopic end at the bottom of the hydraulic cylinder. A clamping mechanism is provided inside the first sliding groove, and an adjustment mechanism is provided on one side of the clamping mechanism.

[0006] To secure the wear-resistant cylinder liner during testing, the clamping mechanism preferably includes a handwheel, a double-acting lead screw, a sliding block, and a clamping block. One side of the handwheel is fixedly connected to one end of the double-acting lead screw, and the other end of the double-acting lead screw passes through one side of the test bench and extends into the interior of the first sliding groove. The surface of the double-acting lead screw is rotatably connected to the inner wall of the test bench via a bearing. The sliding block is fitted onto the surface of the double-acting lead screw, and the inner wall of the sliding block is threadedly connected to the surface of the double-acting lead screw. An adjustment groove is provided on one side of the sliding block. One end of the clamping block passes through the sliding block via the adjustment groove, and the front and rear sides of the clamping block are slidably connected to the inner wall of the adjustment groove. The wear-resistant steel sleeve is placed inside the placement groove, and then the handwheel is rotated. The handwheel drives the double-acting lead screw to rotate, and the double-acting lead screw drives the two clamping blocks to move closer to each other via the sliding block, thereby securing the wear-resistant cylinder liner.

[0007] To further improve the applicability of the clamping mechanism, preferably, the adjusting mechanism includes a connecting block, a disc, a rod, a tension spring, and a limiting hole. The connecting block is L-shaped, and one side of the connecting block is fixedly connected to one end of the clamping block. One side of the disc is fixedly connected to one end of the rod. The other end of the rod passes through the connecting block and extends to the inner wall of the limiting hole. The inner walls of the connecting block and the limiting hole are both slidably connected to the surface of the rod. The limiting hole is located on one side of the sliding block. By pulling the disc away from the sliding block, the disc moves the rod together, causing the rod to disengage from the limiting hole. With the cooperation of the adjusting groove, the vertical position of the clamping block can be adjusted to accommodate different models of wear-resistant cylinder liners.

[0008] To ensure more stable clamping of the wear-resistant cylinder liner, the clamping block is preferably Y-shaped, and a protective pad is fixedly connected to one side of the clamping block. By arranging the clamping block in a Y-shape, the wear-resistant cylinder liner can be clamped more stably. The protective pad increases the friction between the clamping block and the wear-resistant cylinder liner and also protects the surface of the wear-resistant cylinder liner.

[0009] To ensure the stability of the bidirectional lead screw during rotation, preferably, a support block is fixedly connected to the inner wall of the first sliding groove, and one end of the bidirectional lead screw is rotatably connected to the support block through a bearing. The support block helps to balance the bidirectional lead screw and makes it stable during rotation.

[0010] To detect the hardness of the wear-resistant steel sleeve, preferably, a sliding cavity is provided inside the horizontal plate. A pressure sensor is fixedly connected to the inner wall of the sliding cavity, and a circular card is slidably connected to the inner wall of the sliding cavity. A connecting shaft is fixedly connected to the bottom of the circular card. The bottom of the connecting shaft passes through the bottom of the horizontal plate and is fixedly connected to a pressure block. The surface of the connecting shaft is slidably connected to the inner wall of the horizontal plate. By activating the hydraulic cylinder, the hydraulic cylinder pushes the horizontal plate down, causing the pressure block to contact the wear-resistant cylinder sleeve and apply pressure to it. At this time, the connecting shaft pushes the circular card upward, causing the circular card to contact and squeeze the pressure sensor.

[0011] To ensure stability during the movement of the horizontal plate, preferably, a limiting rod is slidably connected to the inner wall of the limiting groove, and one end of the limiting rod is fixedly connected to the rear side of the horizontal plate. The limiting rod and the limiting groove ensure stability during the movement of the horizontal plate.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This utility model solves the problem of needing to test the hardness of wear-resistant cylinder liners during production to ensure the processing quality of the cylinder liners, thereby guaranteeing the subsequent processing effect. Traditional technologies mostly rely on manual testing for hardness, which is time-consuming, labor-intensive, inefficient, and lacks practicality, and also fails to effectively fix the wear-resistant cylinder liners. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural schematic diagram provided in an embodiment of the present utility model;

[0015] Figure 2 This is a schematic diagram of the structure of the placement groove and the first sliding groove provided in an embodiment of the present invention;

[0016] Figure 3 This is a cross-sectional structural diagram of the horizontal plate provided in an embodiment of the present utility model;

[0017] Figure 4 This is provided by the embodiment of the present utility model. Figure 2 Enlarged diagram of point A in the middle.

[0018] In the diagram: 1. Test bench; 2. Display; 3. Placement slot; 4. First sliding slot; 5. Support plate; 6. Fixing plate; 7. Hydraulic cylinder; 8. Horizontal plate; 9. Pressure block; 10. Clamping mechanism; 101. Handwheel; 102. Two-way lead screw; 103. Sliding block; 104. Clamping block; 11. Adjustment mechanism; 111. Connecting block; 112. Circular piece; 113. Insert rod; 114. Tension spring; 115. Limiting hole; 12. Support block; 13. Sliding cavity; 14. Limiting rod; 15. Connecting shaft; 16. Circular card; 17. Pressure sensor; 18. Protective pad; 19. Adjustment slot; 20. Limiting slot. Detailed Implementation

[0019] To further understand the invention content, features and effects of this utility model, the following embodiments are provided, and detailed descriptions are given in conjunction with the accompanying drawings.

[0020] The structure of this utility model will now be described in detail with reference to the accompanying drawings.

[0021] like Figures 1 to 4As shown in the figure, the performance testing device for wear-resistant cylinder liners provided in this embodiment of the present invention includes a test bench 1, a display 2, and a support plate 5. The display 2 is fixedly installed on the front side of the test bench 1, and the support plate 5 is fixedly connected to the top of the test bench 1. The top of the test bench 1 is provided with a placement groove 3 and a first sliding groove 4. A fixing plate 6 is fixedly connected to the front side of the support plate 5, and a limit groove 20 is provided on the front side of the support plate 5. A hydraulic cylinder 7 is fixedly connected to the inner wall of the fixing plate 6. The top of the hydraulic cylinder 7 passes through the fixing plate 6 and extends upward. A horizontal plate 8 is fixedly connected to the telescopic end at the bottom of the hydraulic cylinder 7. A clamping mechanism 10 is provided inside the first sliding groove 4, and an adjustment mechanism 11 is provided on one side of the clamping mechanism 10.

[0022] To secure the wear-resistant cylinder liner during testing, the clamping mechanism 10 includes a handwheel 101, a double-acting lead screw 102, a sliding block 103, and a clamping block 104. One side of the handwheel 101 is fixedly connected to one end of the double-acting lead screw 102, and the other end of the double-acting lead screw 102 passes through one side of the test bench 1 and extends into the interior of the first sliding groove 4. The surface of the double-acting lead screw 102 is rotatably connected to the inner wall of the test bench 1 via a bearing. The sliding block 103 is fitted onto the surface of the double-acting lead screw 102, and the inner wall of the sliding block 103 is connected to the double-acting lead screw 104. The screw 102 is threaded onto the surface of the lead screw 102. An adjustment groove 19 is provided on one side of the sliding block 103. One end of the clamping block 104 passes through the sliding block 103 through the adjustment groove 19. The front and rear sides of the clamping block 104 are slidably connected to the inner wall of the adjustment groove 19. The wear-resistant steel sleeve is placed inside the placement groove 3. Then, by rotating the handwheel 101, the handwheel 101 drives the bidirectional lead screw 102 to rotate. The bidirectional lead screw 102 drives the two clamping blocks 104 to move closer to each other through the sliding block 103, thereby fixing the wear-resistant cylinder liner.

[0023] To further improve the applicability of the clamping mechanism 10, the adjusting mechanism 11 includes a connecting block 111, a disc 112, a rod 113, a tension spring 114, and a limiting hole 115. The connecting block 111 is L-shaped and one side of the connecting block 111 is fixedly connected to one end of the clamping block 104. One side of the disc 112 is fixedly connected to one end of the rod 113. The other end of the rod 113 passes through the connecting block 111 and extends to the inner wall of the limiting hole 115. The inner walls of the connecting block 111 and the limiting hole 115 are both slidably connected to the surface of the rod 113. The limiting hole 115 is opened on one side of the sliding block 103. By pulling the disc 112 away from the sliding block 103, the disc 112 drives the rod 113 to move together, so that the rod 113 disengages from the limiting hole 115. With the cooperation of the adjusting groove 19, the clamping block 104 can be adjusted up and down to adapt to different models of wear-resistant cylinder liners.

[0024] To ensure a more stable clamping of the wear-resistant cylinder liner, the clamping block 104 is Y-shaped, and a protective pad 18 is fixedly connected to one side of the clamping block 104. By arranging the clamping block 104 in a Y-shape, the wear-resistant cylinder liner can be clamped more stably. The protective pad 18 increases the friction between the clamping block 104 and the wear-resistant cylinder liner and also protects the surface of the wear-resistant cylinder liner.

[0025] To ensure the stability of the bidirectional lead screw 102 during rotation, a support block 12 is fixedly connected to the inner wall of the first sliding groove 4. One end of the bidirectional lead screw 102 is rotatably connected to the support block 12 through a bearing. The support block 12 helps the bidirectional lead screw 102 to be balanced, thus ensuring its stability during rotation.

[0026] To detect the hardness of the wear-resistant steel sleeve, a sliding cavity 13 is provided inside the horizontal plate 8. A pressure sensor 17 is fixedly connected to the inner wall of the sliding cavity 13, and a circular card 16 is slidably connected to the inner wall of the sliding cavity 13. A connecting shaft 15 is fixedly connected to the bottom of the circular card 16. The bottom of the connecting shaft 15 passes through the bottom of the horizontal plate 8 and is fixedly connected to a pressure block 9. The surface of the connecting shaft 15 is slidably connected to the inner wall of the horizontal plate 8. By activating the hydraulic cylinder 7, the hydraulic cylinder 7 pushes the horizontal plate 8 down, causing the pressure block 9 to contact the wear-resistant cylinder sleeve and apply pressure to it. At this time, the connecting shaft 15 pushes the circular card 16 upward, causing the circular card 16 to contact and squeeze the pressure sensor 17.

[0027] To ensure stability when the horizontal plate 8 moves, a limiting rod 14 is slidably connected to the inner wall of the limiting groove 20. One end of the limiting rod 14 is fixedly connected to the rear side of the horizontal plate 8. The limiting rod 14 and the limiting groove 20 ensure stability when the horizontal plate 8 moves.

[0028] The working principle of this utility model:

[0029] In use, the pressure sensor 17 is connected to the display 2 signal. Then, the wear-resistant steel sleeve is placed inside the placement groove 3. Next, by rotating the handwheel 101, the handwheel 101 drives the bidirectional lead screw 102 to rotate. The bidirectional lead screw 102, through the sliding block 103, drives the two clamping blocks 104 to move closer to each other, thus fixing the wear-resistant cylinder sleeve. By pulling the disc 112 away from the sliding block 103, the disc 112 moves the insertion rod 113 together, causing the insertion rod 113 to disengage from the limiting hole 115. With the cooperation of the adjusting groove 19, the wear-resistant cylinder sleeve can be adjusted... The clamping block 104 can be adjusted up and down to accommodate different models of wear-resistant cylinder liners. The protective pad 18 increases the friction between the clamping block 104 and the wear-resistant cylinder liner and also protects the surface of the wear-resistant cylinder liner. By activating the hydraulic cylinder 7, the hydraulic cylinder 7 pushes the horizontal plate 8 down, causing the pressure block 9 to contact the wear-resistant cylinder liner and apply pressure to it. At this time, the connecting shaft 15 pushes the circular card 16 upward so that the circular card 16 contacts and squeezes the pressure sensor 17. The pressure sensor 17 transmits the data to the display 2, and the test data can be obtained.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can exercise their rights without departing from the scope of the present utility model.

Claims

1. A performance testing device for wear-resistant cylinder liners, comprising a test bench (1), a display (2), and a support plate (5), wherein the display (2) is fixedly installed on the front side of the test bench (1), and the support plate (5) is fixedly connected to the top of the test bench (1), characterized in that: The test bench (1) has a placement groove (3) and a first sliding groove (4) on its top. A fixing plate (6) is fixedly connected to the front side of the support plate (5). A limit groove (20) is opened on the front side of the support plate (5). A hydraulic cylinder (7) is fixedly connected to the inner wall of the fixing plate (6). The top of the hydraulic cylinder (7) passes through the fixing plate (6) and extends upward. A horizontal plate (8) is fixedly connected to the telescopic end at the bottom of the hydraulic cylinder (7). A clamping mechanism (10) is provided inside the first sliding groove (4). An adjustment mechanism (11) is provided on one side of the clamping mechanism (10).

2. The performance testing device for wear-resistant cylinder liners as described in claim 1, characterized in that: The clamping mechanism (10) includes a handwheel (101), a double-acting lead screw (102), a sliding block (103), and a clamping block (104). One side of the handwheel (101) is fixedly connected to one end of the double-acting lead screw (102). The other end of the double-acting lead screw (102) passes through one side of the test bench (1) and extends into the interior of the first sliding groove (4). The surface of the double-acting lead screw (102) is rotatably connected to the inner wall of the test bench (1) through a bearing. The sliding block (103) is sleeved on the surface of the double-acting lead screw (102). The inner wall of the sliding block (103) is threadedly connected to the surface of the double-acting lead screw (102). An adjustment groove (19) is provided on one side of the sliding block (103). One end of the clamping block (104) passes through the sliding block (103) through the adjustment groove (19). The front and rear sides of the clamping block (104) are slidably connected to the inner wall of the adjustment groove (19).

3. The performance testing device for wear-resistant cylinder liners as described in claim 2, characterized in that: The adjustment mechanism (11) includes a connecting block (111), a disc (112), a rod (113), a tension spring (114), and a limiting hole (115). The connecting block (111) is L-shaped and one side of the connecting block (111) is fixedly connected to one end of the clamping block (104). One side of the disc (112) is fixedly connected to one end of the rod (113). The other end of the rod (113) passes through the connecting block (111) and extends to the inner wall of the limiting hole (115). The inner walls of the connecting block (111) and the limiting hole (115) are both slidingly connected to the surface of the rod (113). The limiting hole (115) is opened on one side of the sliding block (103).

4. The performance testing device for wear-resistant cylinder liners as described in claim 2, characterized in that: The clamping block (104) is Y-shaped, and a protective pad (18) is fixedly connected to one side of the clamping block (104).

5. The performance testing device for wear-resistant cylinder liners as described in claim 2, characterized in that: A support block (12) is fixedly connected to the inner wall of the first sliding groove (4), and one end of the bidirectional lead screw (102) is rotatably connected to the support block (12) through a bearing.

6. The performance testing device for wear-resistant cylinder liners as described in claim 1, characterized in that: The inside of the horizontal plate (8) is provided with a sliding cavity (13). A pressure sensor (17) is fixedly connected to the inner wall of the sliding cavity (13). A circular card (16) is slidably connected to the inner wall of the sliding cavity (13). A connecting shaft (15) is fixedly connected to the bottom of the circular card (16). The bottom of the connecting shaft (15) passes through the bottom of the horizontal plate (8) and is fixedly connected to a pressure block (9). The surface of the connecting shaft (15) is slidably connected to the inner wall of the horizontal plate (8).

7. The performance testing device for wear-resistant cylinder liners as described in claim 1, characterized in that: The inner wall of the limiting groove (20) is slidably connected to a limiting rod (14), and one end of the limiting rod (14) is fixedly connected to the rear side of the horizontal plate (8).

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