A bending experiment auxiliary device for a pin shaft of a excavator

Abstract

The utility model discloses a kind of excavator pin shaft bending experimental auxiliary devices, belong to pin shaft bending experimental equipment technical field, the excavator pin shaft bending experimental auxiliary device includes bottom plate, fixedly installed on the test stand of bottom plate, the pressure block of being set in the test stand interior, the support plate of being set in the test stand interior and the fixing mechanism for pin shaft fixation being set on the support plate, the fixing mechanism includes support frame fixedly installed on the support plate;Through the cooperation of use between above each device, through the setting of fixing mechanism, through fixing mechanism and pin shaft are positioned between multiple clamping blocks, reverse rotary hand wheel drives clamping block synchronous inward movement, until the clamping and fixing of pin shaft are completed.Pressure sensor is built-in in pressure block, by applying sustained pressure to pin shaft, effectively prevent pin shaft from axial deviation or accidental slip in experimental process.

Description

Technical Field

[0001] This utility model relates to the technical field of pin bending test equipment, specifically an auxiliary device for excavator pin bending test. Background Technology

[0002] A pin is a standardized fastener that can be used for static fixing or for relative movement with the connected parts. It is mainly used at the hinge joint of two parts to form a hinge connection. Pins are usually locked with cotter pins, which are reliable and easy to disassemble. The bucket needs to be connected to the excavator through a connecting pin, and the strength of the pin is related to whether the bucket can be used normally.

[0003] Existing auxiliary devices for excavator pin bending tests are not convenient for effectively fixing the pin during use, which may cause the pin to fail to maintain a stable fixed state when subjected to bending loads. This fixation failure can easily cause the pin to shift axially or suddenly slip off during the test, which will not only cause deviations in test data and abnormal wear of the test equipment, but may even cause limb injuries to the operator due to the high-speed flying pin.

[0004] Therefore, this utility model provides an auxiliary device for testing the bending of excavator pins to solve the above-mentioned problems. Utility Model Content

[0005] This invention provides an auxiliary device for testing the bending of excavator pins, aiming to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: an auxiliary device for testing the bending of an excavator pin, the auxiliary device for testing the bending of an excavator pin includes a base plate, a test frame fixedly installed on the base plate, a pressing block disposed inside the test frame, a support plate disposed inside the test frame, and a fixing mechanism disposed on the support plate for fixing the pin.

[0007] The fixing mechanism includes a support frame fixedly mounted on the support plate, a fixed plate fixedly mounted on the support frame, a first threaded rod rotatably mounted inside the fixed plate, a handwheel fixedly mounted on the first threaded rod, a moving block screwed to the first threaded rod, a first connecting rod hinged to the moving block, a second connecting rod hinged to the fixed plate, and a clamping block hinged to the end of the second connecting rod away from the fixed plate.

[0008] As a preferred technical solution of this application, the movable block has a threaded hole inside that is adapted to the first threaded rod. Multiple first connecting rods are provided and are arranged in a ring array on the movable block. Multiple second connecting rods are provided and are arranged in a ring array on the fixed plate. The end of the first connecting rod away from the movable block is hinged to one side of the second connecting rod.

[0009] As a preferred technical solution of this application, an electric push rod is fixedly connected to the top of the test frame, the movable end of the electric push rod passes through the test frame and is fixedly connected to the top of the pressing block, a display screen is fixedly connected to one side of the test frame, and the pressing block is electrically connected to the display screen.

[0010] As a preferred technical solution of this application, a connecting seat is fixedly connected to the top of the base plate, a connecting block is slidably connected inside the connecting seat, and a rotating block is fixedly connected to the top of the connecting block.

[0011] As a preferred technical solution of this application, a handle is fixedly connected to the side surface of the rotating block, a threaded block is fixedly connected to the top of the rotating block, and a threaded hole adapted to the threaded block is opened inside the support plate.

[0012] As a preferred technical solution of this application, a second threaded rod is screwed into the inside of the connecting seat, the second threaded rod passes through the connecting seat, and one end of the second threaded rod is in contact with the side surface of the connecting block.

[0013] The beneficial effects of this utility model are as follows:

[0014] This invention features a simple structure and convenient operation. The fixing mechanism positions the pin between multiple clamping blocks. Rotating the handwheel in the opposite direction drives the clamping blocks to move inward synchronously until the pin is clamped and fixed. The pressure block incorporates a pressure sensor, applying continuous pressure to the pin to effectively prevent axial displacement or accidental slippage during the experiment. Attached Figure Description

[0015] Figure 1 A schematic diagram of the structure of an auxiliary device for testing the bending of an excavator pin. Figure 1 ;

[0016] Figure 2 A schematic diagram of the structure of an auxiliary device for testing the bending of an excavator pin. Figure 2 ;

[0017] Figure 3 This is a cross-sectional schematic diagram of a test frame in an auxiliary device for testing the bending of an excavator pin.

[0018] Figure 4 for Figure 2 Enlarged view of point A in the middle;

[0019] Figure 5 This is a schematic diagram of the installation of clamping blocks in an auxiliary device for testing the bending of an excavator pin.

[0020] In the picture:

[0021] 1. Base plate; 2. Test frame; 3. Pressing block; 4. Support plate; 5. Support frame; 6. Fixed plate; 7. First threaded rod; 8. Handwheel; 9. Moving block; 10. First connecting rod; 11. Second connecting rod; 12. Clamping block; 13. Electric push rod; 14. Display screen; 15. Rotating block; 16. Handle; 17. Threaded block; 18. Connecting block; 19. Connecting seat; 20. Second threaded rod. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] This utility model provides an auxiliary device for testing the bending of excavator pins, such as... Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 As shown, the excavator pin bending test auxiliary device includes a base plate 1, a test frame 2 fixedly installed on the base plate 1, a pressing block 3 set inside the test frame 2, a support plate 4 set inside the test frame 2, and a fixing mechanism set on the support plate 4 for fixing the pin.

[0024] The fixing mechanism includes a support frame 5 fixedly mounted on the support plate 4, a fixed plate 6 fixedly mounted on the support frame 5, a first threaded rod 7 rotatably mounted inside the fixed plate 6, a handwheel 8 fixedly mounted on the first threaded rod 7, a moving block 9 screwed to the first threaded rod 7, a first connecting rod 10 hinged to the moving block 9, a second connecting rod 11 hinged to the fixed plate 6, and a clamping block 12 hinged to the end of the second connecting rod 11 away from the fixed plate 6.

[0025] The movable block 9 has a threaded hole inside that matches the first threaded rod 7. Multiple first connecting rods 10 are provided and are arranged in a ring array on the movable block 9. Multiple second connecting rods 11 are provided and are arranged in a ring array on the fixed plate 6. The end of the first connecting rod 10 away from the movable block 9 is hinged to one side of the second connecting rod 11.

[0026] When using this excavator pin bending test auxiliary device, first place the base plate 1 in a suitable position, then manually turn the handwheel 8. The rotation of the handwheel 8 drives the first threaded rod 7, which is fixedly connected to it, to rotate synchronously. The rotation of the first threaded rod 7 drives the moving block 9, which is screwed to it, to move synchronously. The movement of the moving block 9 drives the first connecting rod 10, which is hinged to it, to move synchronously. Since the other end of the first connecting rod 10 is hinged to one side of the second connecting rod 11, the first connecting rod 10 rotates around the position hinged to the moving block 9 as the center, thereby driving the second connecting rod 11 to rotate around the position hinged to the fixed plate 6 as the center, thereby driving the clamping block 12, which is hinged to it, to move synchronously. Then, place the pin between the multiple clamping blocks 12, and then rotate the handwheel 8 in the opposite direction, so that the multiple clamping blocks 12 move inward synchronously until the pin is clamped. The pressure sensor is installed inside the pressure block 3. The pressure is applied to the pin by the pressure block 3, thereby realizing the bending test of the pin, which is quite convenient.

[0027] Furthermore, to facilitate bending tests on the pin, such as... Figure 1 , Figure 2 and Figure 3 As shown, an electric push rod 13 is fixedly connected to the top of the test frame 2. The movable end of the electric push rod 13 passes through the test frame 2 and is fixedly connected to the top of the pressing block 3. A display screen 14 is fixedly connected to one side of the test frame 2. The pressing block 3 is electrically connected to the display screen 14.

[0028] When using this excavator pin bending test auxiliary device, after the pin is fixed by the fixing mechanism, the electric push rod 13 is activated. The movable end of the electric push rod 13 drives the pressure block 3 fixedly connected to it to move downward synchronously, so that the pressure block 3 applies pressure to the pin. The pressure sensor transmits the detected pressure to the display screen 14, so that the tester can record the data, thereby realizing the pin bending test.

[0029] In order to facilitate the disassembly of the support plate 4 supporting the support pin, such as Figure 1 , Figure 2 and Figure 3 As shown, a connecting seat 19 is fixedly connected to the top of the base plate 1, a connecting block 18 is slidably connected inside the connecting seat 19, and a rotating block 15 is fixedly connected to the top of the connecting block 18.

[0030] A handle 16 is fixedly connected to the side surface of the rotating block 15, and a threaded block 17 is fixedly connected to the top of the rotating block 15. A threaded hole that matches the threaded block 17 is opened inside the support plate 4.

[0031] The connecting seat 19 is screwed with a second threaded rod 20, which passes through the connecting seat 19 and one end of the second threaded rod 20 is in contact with the side surface of the connecting block 18.

[0032] When in use, the excavator pin bending test auxiliary device rotates the rotating block 15 and the threaded block 17 by turning the handle 16, which in turn causes the threaded block 17 to be screwed to the bottom end of the support plate 4, thus supporting the support plate 4. The installation and disassembly of the support plate 4 are relatively convenient. By tightening the second threaded rod 20, the connecting block 18 can be quickly fixed inside the connecting seat 19. By unscrewing the second threaded rod 20, the connecting block 18 can be removed from inside the connecting seat 19, making disassembly and assembly relatively convenient.

[0033] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. An auxiliary device for testing the bending of an excavator pin, characterized in that: The excavator pin bending test auxiliary device includes a base plate (1), a test frame (2) fixedly installed on the base plate (1), a pressing block (3) set inside the test frame (2), a support plate (4) set inside the test frame (2), and a fixing mechanism set on the support plate (4) for fixing the pin. The fixing mechanism includes a support frame (5) fixedly mounted on the support plate (4), a fixed plate (6) fixedly mounted on the support frame (5), a first threaded rod (7) rotatably mounted inside the fixed plate (6), a handwheel (8) fixedly mounted on the first threaded rod (7), a moving block (9) screwed onto the first threaded rod (7), a first connecting rod (10) hinged to the moving block (9), a second connecting rod (11) hinged to the fixed plate (6), and a clamping block (12) hinged to the end of the second connecting rod (11) away from the fixed plate (6).

2. The excavator pin bending test auxiliary device according to claim 1, characterized in that: The movable block (9) has a threaded hole inside that is compatible with the first threaded rod (7). There are multiple first connecting rods (10) arranged in a ring array on the movable block (9). There are multiple second connecting rods (11) arranged in a ring array on the fixed plate (6). The end of the first connecting rod (10) away from the movable block (9) is hinged to one side of the second connecting rod (11).

3. The excavator pin bending test auxiliary device according to claim 1, characterized in that: An electric push rod (13) is fixedly connected to the top of the test frame (2). The movable end of the electric push rod (13) passes through the test frame (2) and is fixedly connected to the top of the pressing block (3). A display screen (14) is fixedly connected to one side of the test frame (2). The pressing block (3) is electrically connected to the display screen (14).

4. The excavator pin bending test auxiliary device according to claim 1, characterized in that: A connecting seat (19) is fixedly connected to the top of the base plate (1), and a connecting block (18) is slidably connected inside the connecting seat (19). A rotating block (15) is fixedly connected to the top of the connecting block (18).

5. The excavator pin bending test auxiliary device according to claim 4, characterized in that: A handle (16) is fixedly connected to the side surface of the rotating block (15), and a threaded block (17) is fixedly connected to the top of the rotating block (15). A threaded hole adapted to the threaded block (17) is opened inside the support plate (4).

6. The excavator pin bending test auxiliary device according to claim 5, characterized in that: The connecting seat (19) is screwed with a second threaded rod (20), which passes through the connecting seat (19). One end of the second threaded rod (20) is in contact with the side surface of the connecting block (18).

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