Agricultural machinery V-shaped belt tension working condition simulation test platform

Abstract

The utility model discloses an agricultural machinery V-shaped belt pulling force working condition simulation test platform, and relates to the belt test platform technology field, the agricultural machinery V-shaped belt pulling force working condition simulation test platform comprises a test board body, a moving mechanism is installed on the test board body, the moving mechanism is used for adjusting the distance between V-shaped belts, and a dismounting mechanism is installed above the moving mechanism; the dismounting mechanism comprises a rotating shaft, a sliding groove is formed in the rotating shaft, an L-shaped connecting rod is slidably connected into the sliding groove, a reset spring is arranged in the rotating shaft, one end of the reset spring is fixedly connected with the inner wall of the rotating shaft, and the other end of the reset spring is fixedly connected with the L-shaped connecting rod. According to the utility model, by pressing the L-shaped connecting rod downwards, the fixation of the first test belt pulley can be relieved, the rapid disassembly and replacement are realized, and the test belt pulleys with different sizes can be rapidly replaced according to requirements, so that the influence of the belt pulleys with different radiuses or types on the working performance of the V-shaped belt can be simulated and tested.

Description

Technical Field

[0001] The utility model belongs to the technical field of belt test platforms, and particularly relates to a simulation test platform for the tensile working conditions of agricultural machinery V-belts. Background Technique

[0002] In the wide application of agricultural machinery, as a key component for power transmission, the working performance of V-belts is directly related to the operating efficiency, stability, and durability of the whole machine.

[0003] A belt tensile force automatic test device with the publication number of CN208383618U mentions that the utility model discloses a belt tensile force automatic test device, including a base and a hydraulic press interface. A spring is arranged above the base, and a straight rod is arranged inside the spring. A baffle is arranged above the spring, and a support column is installed above the baffle. A hydraulic rod is installed above the support column, and a fixing block is arranged above the hydraulic rod. The hydraulic press interface is arranged above the hydraulic press, and the hydraulic press interface is located on the right side of the fixing block. A fixing frame is installed outside the hydraulic press, and fixing screws are arranged outside the fixing frame. A moving rod is arranged on the right side of the fixing frame, and a fixing rod is installed inside the moving rod. A buckle is installed on the right side of the fixing rod, and a tensile force sensor is arranged inside the fixing rod. This belt tensile force automatic test device has the characteristics of being able to automatically conduct tests, having good test effects, being able to visually distinguish, and not being prone to jitter during use.

[0004] However, during the implementation of the above patent, there is a lack of tensile tests on belts under different working conditions, especially the performance changes in the face of different sizes and inclined or twisted states, resulting in the test methods often being limited to a single one, making it difficult to comprehensively and accurately simulate various complex working conditions that the V-belt may encounter during actual operation, and causing a large deviation between the test results and actual applications. Content of the Utility Model

[0005] The utility model aims to at least solve the technical problems existing in the prior art; for this purpose, the utility model proposes a simulation test platform for the tensile working conditions of agricultural machinery V-belts.

[0006] To achieve the above object, the utility model provides the following technical solution:

[0007] A simulation test platform for the tensile working conditions of agricultural machinery V-belts, including a test bench body, a moving mechanism is installed on the test bench body, the moving mechanism is used to adjust the distance between V-belts, and a disassembly mechanism is installed above the moving mechanism;

[0008] The disassembly mechanism includes a rotating shaft, on which a sliding groove is provided. An L-shaped connecting rod is slidably connected inside the sliding groove, and a return spring is arranged inside the rotating shaft. One end of the return spring is fixedly connected to the inner wall of the rotating shaft, and the other end of the return spring is fixedly connected to the L-shaped connecting rod. The upper end of the L-shaped connecting rod is fixedly connected with a driving wedge block, and T-shaped sliders are fixedly arranged on both inclined surfaces of the driving wedge block. The T-shaped sliders are slidably connected with driven clamping blocks, and a first test pulley is sleeved on the upper end of the rotating shaft. A limiting groove is arranged inside the first test pulley, and the driven clamping block is slidably arranged in the limiting groove.

[0009] As a further preference of this technical solution: A steering mechanism is further installed on the moving mechanism. The steering mechanism includes a rotating motor, the output end of the rotating motor is fixedly connected with a first bevel gear, the first bevel gear meshes with a second bevel gear, an L-shaped connecting column is fixedly connected inside the second bevel gear, and a support frame is fixedly connected to the upper end of the L-shaped connecting column.

[0010] As a further preference of this technical solution: The moving mechanism includes a first fixing block fixedly connected to the test bench body. A moving motor is fixedly connected to the first fixing block, the output end of the moving motor is fixedly connected with a moving lead screw, and a sliding shaft is arranged on one side of the moving lead screw. The sliding shaft is fixedly connected to the upper end of the test bench body through a second fixing block. The moving lead screw is in threaded connection with a movable seat, and the movable seat is slidably connected with the sliding shaft.

[0011] As a further preference of this technical solution: The rotating motor is fixedly connected to the movable seat, and a connecting frame is fixedly connected to the movable seat. The end of the connecting frame away from the movable seat is rotatably connected with the L-shaped connecting column.

[0012] As a further preference of this technical solution: A fixing seat is further fixedly connected to the test bench body. A driving motor is arranged inside the fixing seat, the output end of the driving motor is fixedly connected with a driving shaft, the driving shaft is rotatably connected with the fixing seat, and a second test pulley is fixedly connected to the upper end of the driving shaft.

[0013] As a further preference of this technical solution: The rotating shaft is rotatably connected to the support frame.

[0014] As a further preference of this technical solution: The lower end of the test bench body is fixedly provided with a footrest.

[0015] Compared with the prior art, the beneficial effects of the present utility model are:

[0016] 1. In the present utility model, by pressing down the L-shaped connecting rod, the fixation of the first test pulley can be released, enabling rapid disassembly and replacement. This facilitates quickly replacing test pulleys of different sizes as needed to simulate and test the influence of pulleys with different radii or types on the working performance of the V-belt.

[0017] 2. In the present utility model, driven by the rotation of the motor, the first test pulley switches between multiple angles, simulating various inclined or twisted states that may be encountered in actual work, enabling researchers to comprehensively evaluate the transmission efficiency and force-bearing conditions of the V-belt at different angles. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 is a three-dimensional structural schematic diagram of the present utility model;

[0019] Figure 2 is a partial three-dimensional structural schematic diagram of the present utility model;

[0020] Figure 3 is a partial structural cross-sectional view of the present utility model;

[0021] Figure 4 is a partial structural explosion diagram of the present utility model.

[0022] Legend: 100, test bench body; 201, first fixed block; 202, moving motor; 203, moving lead screw; 204, second fixed block; 205, sliding shaft; 206, movable seat; 207, fixed seat; 301, rotating motor; 302, first bevel gear; 303, second bevel gear; 304, connecting frame; 305, L-shaped connecting column; 306, support frame; 401, rotating shaft; 402, chute; 403, L-shaped connecting rod; 404, return spring; 405, active wedge block; 406, first test pulley; 407, limiting groove; 408, driven clamping block; 409, T-shaped slider; 501, second test pulley; 502, driving shaft; 600, footrest. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0023] The technical solutions of the present utility model will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of them. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

[0024] Please refer to Figures 1-4 , this application provides an agricultural machinery V-belt tensile working condition simulation test platform, including;

[0025] Embodiment 1:

[0026] An agricultural machinery V-belt tensile working condition simulation test platform, including a test bench body 100, a moving mechanism is installed on the test bench body 100, the moving mechanism is used to adjust the distance between V-belts, and a disassembly mechanism is installed above the moving mechanism;

[0027] The disassembly mechanism includes a rotating shaft 401, a chute 402 is arranged on the rotating shaft 401, an L-shaped connecting rod 403 is slidably connected inside the chute 402, and a return spring 404 is arranged inside the rotating shaft 401. One end of the return spring 404 is fixedly connected to the inner wall of the rotating shaft 401, and the other end of the return spring 404 is fixedly connected to the L-shaped connecting rod 403. The upper end of the L-shaped connecting rod 403 is fixedly connected with a driving wedge block 405. T-shaped sliders 409 are fixedly arranged on both inclined surfaces of the driving wedge block 405. The T-shaped sliders 409 are slidably connected with driven clamping blocks 408. The upper end of the rotating shaft 401 is sleeved with a first test pulley 406. A limiting groove 407 is arranged inside the first test pulley 406. The driven clamping block 408 is slidably arranged in the limiting groove 407. By pressing down the L-shaped connecting rod 403, the fixation of the first test pulley 406 can be released, realizing quick disassembly and replacement, and facilitating quick replacement of different-sized test pulleys according to needs to simulate and test the influence of different-radius or different-type pulleys on the working performance of V-belts.

[0028] A fixed seat 207 is also fixedly connected to the test bench body 100. A driving motor is arranged inside the fixed seat 207. The output end of the driving motor is fixedly connected with a driving shaft 502. The driving shaft 502 is rotatably connected with the fixed seat 207. The upper end of the driving shaft 502 is fixedly connected with a second test pulley 501.

[0029] The rotating shaft 401 is rotatably connected to a support frame 306.

[0030] Embodiment 2:

[0031] On the basis of Embodiment 1, a steering mechanism is further installed on the moving mechanism. The steering mechanism includes a rotating motor 301. The output end of the rotating motor 301 is fixedly connected with a first bevel gear 302. The first bevel gear 302 meshes with a second bevel gear 303. An L-shaped connecting column 305 is fixedly connected inside the second bevel gear 303. The upper end of the L-shaped connecting column 305 is fixedly connected with a support frame 306. Driven by the rotating motor 301, the first test pulley 406 switches between multiple angles, simulating various inclined or twisted states that may be encountered in actual work, enabling researchers to comprehensively evaluate the transmission efficiency and stress conditions of V-belts at different angles.

[0032] The rotating motor 301 is fixedly connected to the movable seat 206, and a connecting frame 304 is fixedly connected to the movable seat 206. One end of the connecting frame 304 away from the movable seat 206 is rotatably connected to the L-shaped connecting column 305.

[0033] The moving mechanism includes a first fixed block 201 fixedly connected to the test bench body 100. A moving motor 202 is fixedly connected to the first fixed block 201. The output end of the moving motor 202 is fixedly connected to a moving lead screw 203. A sliding shaft 205 is arranged on one side of the moving lead screw 203. The sliding shaft 205 is fixedly connected to the upper end of the test bench body 100 through a second fixed block 204. The moving lead screw 203 is threadedly connected to a movable seat 206, and the movable seat 206 is slidably connected to the sliding shaft 205. The lower end of the test bench body 100 is fixedly provided with a footrest 600.

[0034] Working principle: First, the staff drives the moving motor to drive the moving lead screw to rotate. The rotation of the moving lead screw makes the movable seat slide along the sliding shaft, that is, to adjust the distance between the second test pulley and the first test pulley, so as to adjust the tension between the V-belts. Then, by starting the rotating motor to drive the first bevel gear to rotate, the first bevel gear drives the second bevel gear to rotate, the second bevel gear drives the L-shaped connecting column to rotate, the L-shaped connecting column drives the upper support frame to rotate, and the rotation of the support frame makes the first test pulley on it rotate. Thus, it is convenient to adjust the angle of the first test pulley to simulate and test the influence of different angles between the first test pulley and the second test pulley on the V-belt during work. Finally, the L-shaped connecting rod can be pressed down to drive the active wedge block to slide downwards. During this process, the return spring is stretched. After releasing the L-shaped connecting rod, under the action of the return spring, the L-shaped connecting rod can be reset. The active wedge block drives the T-shaped slider to slide downwards, and then the driven block slides out of the limiting groove and retracts into the inside of the rotating shaft. At this time, the first test pulley can be quickly removed and replaced with a first test pulley of different sizes to simulate and test the influence of test pulleys with different radii on the V-belt during work.

[0035] The above embodiments are only used to illustrate the technical method of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical method of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical method of the present invention.

Claims

1. An agricultural machinery V-belt tensile working condition simulation test platform, including a test bench body (100), characterized in that: A moving mechanism is installed on the test bench body (100), and the moving mechanism is used to adjust the distance between V-belts. A disassembly mechanism is installed above the moving mechanism; The disassembly mechanism includes a rotating shaft (401). A chute (402) is provided on the rotating shaft (401). An L-shaped connecting rod (403) is slidably connected inside the chute (402). A return spring (404) is arranged inside the rotating shaft (401). One end of the return spring (404) is fixedly connected to the inner wall of the rotating shaft (401), and the other end of the return spring (404) is fixedly connected to the L-shaped connecting rod (403). The upper end of the L-shaped connecting rod (403) is fixedly connected with a driving wedge block (405). T-shaped sliders (409) are fixedly arranged on both inclined surfaces of the driving wedge block (405). The T-shaped sliders (409) are slidably connected with driven clamping blocks (408). A first test pulley (406) is sleeved on the upper end of the rotating shaft (401). A limiting groove (407) is arranged inside the first test pulley (406). The driven clamping block (408) is slidably arranged in the limiting groove (407).

2. The simulation test platform for the tensile working condition of the V-belt of agricultural machinery according to claim 1, wherein A steering mechanism is also installed on the moving mechanism. The steering mechanism includes a rotating motor (301). The output end of the rotating motor (301) is fixedly connected with a first bevel gear (302). The first bevel gear (302) meshes with a second bevel gear (303). An L-shaped connecting column (305) is fixedly connected inside the second bevel gear (303). The upper end of the L-shaped connecting column (305) is fixedly connected with a support frame (306).

3. The simulation test platform for the tensile working condition of the V-belt of agricultural machinery according to claim 1, characterized in that, The moving mechanism includes a first fixing block (201) fixedly connected to the test bench body (100). A moving motor (202) is fixedly connected to the first fixing block (201). The output end of the moving motor (202) is fixedly connected with a moving lead screw (203). A sliding shaft (205) is arranged on one side of the moving lead screw (203). The sliding shaft (205) is fixedly connected to the upper end of the test bench body (100) through a second fixing block (204). The moving lead screw (203) is threadedly connected with a movable seat (206). The movable seat (206) is slidably connected with the sliding shaft (205).

4. The simulation test platform for the tensile working condition of the V-belt of agricultural machinery according to claim 2, wherein, The rotating motor (301) is fixedly connected to the movable seat (206). A connecting frame (304) is fixedly connected to the movable seat (206). The end of the connecting frame (304) far from the movable seat (206) is rotatably connected with the L-shaped connecting column (305).

5. The simulation test platform for the tensile working condition of the V-belt of agricultural machinery according to claim 1, wherein A fixing seat (207) is also fixedly connected to the test bench body (100). A driving motor is arranged inside the fixing seat (207). The output end of the driving motor is fixedly connected with a driving shaft (502). The driving shaft (502) is rotatably connected with the fixing seat (207). The upper end of the driving shaft (502) is fixedly connected with a second test pulley (501).

6. The agricultural machinery V-belt tensile working condition simulation test platform according to claim 1, wherein, The rotating shaft (401) is rotatably connected to the support frame (306).

7. A simulation test platform for the tensile working condition of the V-belt of agricultural machinery according to claim 1, characterized in that The lower end of the test bench body (100) is fixedly provided with a footrest (600).

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