A loading test device for a forklift reducer

Abstract

The utility model relates to the technical field of speed reducer test equipment, concretely relates to a loading test device of fork truck speed reducer, including loading cylinder subassembly, drive motor no.

Description

Technical Field

[0001] This utility model relates to the technical field of speed reducer testing equipment, specifically providing a loading test device for a forklift speed reducer. Background Technology

[0002] Forklift gearboxes are key components of forklift transmission systems and are widely used in logistics, warehousing and other fields. They are mainly used to change the direction of transmission, reduce speed, and increase torque to ensure that the forklift has sufficient driving force to drive the wheels or working mechanisms (such as mast lifting, steering, etc.) to operate stably. Forklift gearboxes come in various types, have a wide range of applications, and a vibrant market, playing an important role in industrial production.

[0003] To ensure the performance of forklift gearboxes, load testing is required. During testing, the forklift gearbox needs to be lifted onto the testing fixture by a crane and then rotated 90° for testing. Existing forklift gearbox load testing equipment, such as... Figure 1 As shown, drive motor 1 2 and drive motor 2 3 are provided on both sides of the testing fixture 1. When the hoisted forklift reducer is flipped, drive motor 1 2 and drive motor 2 3 drive the testing fixture to flip the forklift reducer. Drive motor 1 2 and drive motor 2 3 need to flip 90° at the same time, which makes the overall structure complicated, the testing efficiency low, and the test is prone to safety problems.

[0004] Therefore, designing a simple and stable forklift reducer loading test device is an urgent problem to be solved. Utility Model Content

[0005] To solve the above problems, this utility model provides a loading test device for forklift reducers. The device has a simple overall structure, is easy to operate, has high working efficiency, and high operational stability.

[0006] The present invention provides a loading test device for a forklift reducer, including a base, a loading cylinder assembly and a drive motor one and a drive motor two located on both sides of the loading cylinder assembly, the forklift reducer being placed on the loading cylinder assembly, and the power output rods of the drive motor one and the drive motor two being able to drive the loading cylinder assembly and the forklift reducer to rotate. The loading cylinder assembly includes a loading cylinder and an analog input unit located outside the loading cylinder. The internal spline of the output end of the forklift reducer is located inside the loading cylinder, the input end of the forklift reducer is located outside the loading cylinder, and the loading cylinder assembly is locked onto the loading cylinder by a locking unit. The power output rods of drive motor one and drive motor two extend into the cylinder body and mesh with the internal spline of the output end of the forklift reducer. The analog input unit is engaged with the input end of the forklift reducer. The connection between the power output rods of drive motor one and drive motor two and the loading cylinder includes a sealing unit, and a limiting unit is provided between the loading cylinder and the base.

[0007] Furthermore, the loading cylinder assembly also includes a support base one and a support base two located on the base, with the loading cylinder located between the support base one and the support base two; the support base one is provided with a connecting pipe one communicating with the loading cylinder, the power output rod of the drive motor one passes through the inner hole of the connecting pipe one and extends into the loading cylinder, and the support base two is provided with a connecting pipe two through which the power output rod of the drive motor two passes, the power output rod of the drive motor two passes through the inner hole of the connecting pipe two and extends into the loading cylinder.

[0008] Furthermore, the inner walls of connecting pipe one and connecting pipe two are of a tapered structure that gradually narrows from the loading cylinder toward the outside.

[0009] Furthermore, the sealing unit includes an oil tank body 1 formed on the wall of the connecting pipe 1 and an oil tank body 2 formed on the wall of the connecting pipe 2; the end of the oil tank body 1 away from the loading cylinder has an oil return groove 1 that communicates with the inner hole of the connecting pipe 1, and the end of the oil tank body 1 near the loading cylinder has an oil collection groove 1 that does not communicate with the inner hole of the connecting pipe 1; the end of the oil tank body 2 away from the loading cylinder has an oil return groove 2 that communicates with the inner hole of the connecting pipe 2, and the end of the oil tank body 2 near the loading cylinder has an oil collection groove 2 that does not communicate with the inner hole of the connecting pipe 2.

[0010] Furthermore, the sealing unit also includes a sealing ring one located at the end of the connecting pipe one near the support seat one, and a sealing ring two located at the end of the connecting pipe two near the support seat two.

[0011] Furthermore, the limiting unit includes a limiting member on the base and a limiting seat on the outer wall of the loading cylinder. The limiting member can clamp the limiting seat to limit the loading cylinder and the forklift reducer.

[0012] Furthermore, the limiting component includes a limiting platform and a limiting drive component disposed on the base. The limiting platform includes a lower support platform and an upper support platform located on the side of the lower support platform near the loading cylinder. The limiting drive component is disposed on the lower support platform, and the limiting seat can be limited on the upper support platform. The limiting drive component can press the limiting seat tightly.

[0013] Furthermore, a pressure plate is connected to the power output rod of the limit drive component, and the limit drive component can drive the pressure plate to move downward to press the limit seat.

[0014] Furthermore, the locking unit includes multiple locking drive components connected to the outer wall of the loading cylinder. The power output end of the locking drive component is provided with a pressure plate two. The locking drive component can drive the pressure plate two to press the forklift reducer and lock the forklift drive component onto the loading cylinder.

[0015] Furthermore, both the locking drive and the limiting drive are hydraulic cylinders. The locking drive includes four cylinders evenly distributed on the outer wall of the loading cylinder, and the locking drive is staggered from the limiting seat.

[0016] Compared with the prior art, the present invention can achieve the following beneficial effects: the loading test device in this solution only requires the motor to drive the forklift reducer to rotate, the motor itself does not need to rotate, there will be no safety problems, the overall structure is simple, the cost is low, the testing efficiency is high, and it is easy to operate. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of an existing forklift reducer in the background art; Figure 2 This is a schematic diagram of the loading test device provided according to an embodiment of the present utility model (the loading cylinder is not flipped, and the analog input unit is not shown). Figure 3 This is a partial cross-sectional view of the loading test device provided according to an embodiment of the present utility model; Figure 4 yes Figure 3 A magnified view of a section at point A in the middle; Figure 5 yes Figure 3 A magnified view of a section at point B in the middle; Figure 6 This is a structural schematic diagram of the loading test device provided according to an embodiment of the present utility model (loading cylinder in a flipped state). Figure 7 This is a structural schematic diagram of the loading test device provided according to an embodiment of the present utility model (loading cylinder in a flipped state).

[0018] The reference numerals in the attached drawings include: 1. Loading cylinder; 2. Forklift reducer; 3. Power output rod; 4. Analog input unit; 5. Support base one; 6. Support base two; 7. Connecting pipe one; 8. Connecting pipe two; 9. Oil tank body one; 10. Oil tank body two; 11. Return oil tank one; 12. Return oil tank two; 13. Collecting oil tank one; 14. Collecting oil tank two; 15. Sealing ring one; 16. Sealing ring two; 17. Limiting seat; 18. Limiting drive component; 19. Lower support platform; 20. Upper support platform; 21. Pressure plate one; 22. Locking drive component; 23. Pressure plate two; 24. Limiting component; 25. Power input rod. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description is provided in conjunction with the appendix. Figure 1-7 The present invention will be further described in detail below with reference to specific embodiments. It should be understood that the specific embodiments described herein are only for explaining the present invention and do not constitute a limitation thereof.

[0020] A loading test device for a forklift reducer 2 includes a base, on which a loading cylinder assembly and a drive motor 1 and a drive motor 2 are respectively located on both sides of the loading cylinder assembly. The forklift reducer 2 is placed on the loading cylinder assembly. The power output rods 3 of the drive motor 1 and the drive motor 2 can drive the loading cylinder assembly and the forklift reducer 2 to rotate. Figure 1 The base, drive motor 1, and drive motor 2 are not shown. The power output rods 3 of drive motor 1 and drive motor 2 are shown. The loading cylinder assembly is driven to rotate by the power output rods 3 of drive motor 1 and drive motor 2. Drive motor 1 and drive motor 2 are fixed on the base.

[0021] The loading cylinder assembly includes a loading cylinder 1 and an analog input unit 4 located outside the loading cylinder 1. The power output rods 3 of drive motor 1 and drive motor 2 extend into the cylinder body and engage with the internal spline of the output end of the forklift reducer 2. The analog input unit 4 is connected to the input end of the forklift reducer 2. The internal spline of the output end of the forklift reducer 2 is located inside the loading cylinder 1, and the input end of the forklift reducer 2 is located outside the loading cylinder 1. The power output rods 3 of drive motor 1 and drive motor 2 extend into the loading cylinder 1 and are connected to the internal spline of the output end of the forklift reducer 2. Drive motor 1 and drive motor 2 drive the internal spline of the forklift reducer 2, causing the forklift reducer 2 and the loading cylinder 1 to rotate as a whole. The power input rod 25 of the analog input unit 4 is connected to the input end of the forklift reducer 2.

[0022] Figure 1 The forklift reducer 2 is in the state where it has not been tilted after being hoisted onto the loading cylinder 1. At this time, no loading test has been performed. Figure 6 , Figure 7 The forklift reducer 2 is in a flipped state under the drive of drive motor 1 and drive motor 2. At this time, the power input rod 25 of the analog input unit 4 provides analog input force to the forklift reducer 1. Drive motor 1 and drive motor 2 provide the opposite driving force to the forklift reducer 1. The noise, vibration, torque and other performance of the forklift reducer 1 are tested.

[0023] The loading cylinder assembly is locked onto the loading cylinder 1 by a locking unit. The locking unit includes multiple locking drive components 22 connected to the outer wall of the loading cylinder 1. The power output end of the locking drive component 22 is provided with a pressure plate 23. The locking drive component 22 can drive the pressure plate 2 to press the forklift reducer 2 and lock the forklift drive component onto the loading cylinder 1. The locking drive component 22 is a hydraulic cylinder. The locking drive component 22 includes four evenly distributed on the outer wall of the loading cylinder 1. The locking drive component 22 is staggered from the limit seat 17.

[0024] The loading cylinder assembly also includes a support base 5 and a support base 6 located on the base. The loading cylinder 1 is located between the support base 5 and the support base 6. The support base 5 is provided with a connecting pipe 7 that communicates with the loading cylinder 1. The power output rod 3 of the drive motor 1 passes through the inner hole of the connecting pipe 7 and extends into the interior of the loading cylinder 1. The support base 26 is provided with a connecting pipe 2 8 through which the power output rod 3 of the drive motor 2 passes. The power output rod 3 of the drive motor 2 passes through the inner hole of the connecting pipe 2 8 and extends into the interior of the loading cylinder 1.

[0025] The inner walls of connecting pipe 1 7 and connecting pipe 2 8 are tapered structures that gradually narrow from the loading cylinder 1 outwards. The connection between the power output rod 3 of drive motor 1 and drive motor 2 and the loading cylinder 1 includes a sealing unit. The sealing unit includes an oil groove body 1 9 opened on the pipe wall of connecting pipe 1 7 and an oil groove body 2 10 opened on the pipe wall of connecting pipe 2 8. The end of oil groove body 1 9 away from the loading cylinder 1 has a return oil groove 11 that communicates with the inner hole of connecting pipe 1 7. The end of oil groove body 1 9 near the loading cylinder 1 has an oil collection groove 13 that does not communicate with the inner hole of connecting pipe 1 7. The end of oil groove body 2 10 away from the loading cylinder 1 has a return oil groove 2 12 that communicates with the inner hole of connecting pipe 2 8. The end of oil groove body 2 10 near the loading cylinder 1 has an oil collection groove 2 14 that does not communicate with the inner hole of connecting pipe 2 8.

[0026] When the oil in the loading cylinder 1 flows out from the connecting pipe 7 or the connecting pipe 8, the pipe wall of the reduced-diameter connecting pipe 7 or the connecting pipe 8 itself has the function of preventing oil overflow. When oil leaks out, the oil will return to the oil return groove 11 and the oil return groove 12, and flow into the loading cylinder 1 through the oil groove body 9 and the oil groove body 10, respectively. Finally, the oil is collected in the oil collection groove 13 and the oil collection groove 14, respectively, to prevent oil leakage. At the same time, the sealing unit also includes a sealing ring 15 located on the side of the connecting pipe 7 near the support base 5 and a sealing ring 16 located on the side of the connecting pipe 8 near the support base 6. The sealing rings 15 and 16 can form an outer end leak-proof structure to further prevent oil leakage.

[0027] A limiting unit is provided between the loading cylinder 1 and the base. The limiting unit includes a limiting member 24 on the base and a limiting seat 17 on the outer wall of the loading cylinder 1. The limiting member 24 can clamp the limiting seat 17 to limit the loading cylinder 1 and the forklift reducer 2. The limiting member 24 includes a limiting platform and a limiting drive member 18 on the base. The limiting platform includes a lower support platform 19 and an upper support platform 20 located on the side of the lower support platform 19 near the loading cylinder 1. The limiting drive member 18 is located on the lower support platform 19. The limiting seat 17 can be limited on the upper support platform 20. The limiting drive member 18 can press the limiting seat 17. The limiting drive member 18 is a hydraulic cylinder. A pressure plate 21 is connected to the power output rod 3 of the limiting drive member 18. The limiting drive member 18 can drive the pressure plate 21 to move downward to press the limiting seat 17.

[0028] Although embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions, and variations to the above embodiments within the scope of the present invention.

[0029] The specific embodiments of this utility model described above do not constitute a limitation on the scope of protection of this utility model. Any other corresponding changes and modifications made based on the technical concept of this utility model should be included within the scope of protection of the claims of this utility model.

Claims

1. A loading test device for a forklift reducer (2), characterized in that, Includes a base, on which is provided a loading cylinder assembly and drive motor one and drive motor two located on both sides of the loading cylinder assembly respectively. The forklift reducer (2) is placed on the loading cylinder assembly. The power output rods (3) of drive motor one and drive motor two can drive the loading cylinder assembly and forklift reducer (2) to flip. The loading cylinder assembly includes a loading cylinder (1) and an analog input unit (4) located outside the loading cylinder (1). The spline of the output end of the forklift reducer (2) is located inside the loading cylinder (1), the input end of the forklift reducer (2) is located outside the loading cylinder (1), and the loading cylinder assembly is locked onto the loading cylinder (1) by a locking unit. The power output rods (3) of the drive motor 1 and the drive motor 2 extend into the cylinder body and mesh with the spline of the output end of the forklift reducer (2). The analog input unit (4) is engaged with the input end of the forklift reducer (2). The connection between the power output rod (3) of drive motor 1 and drive motor 2 and the loading cylinder (1) includes a sealing unit, and the loading cylinder (1) and the base are matched with a limiting unit.

2. The loading test device for the forklift reducer (2) according to claim 1, characterized in that, The loading cylinder assembly also includes a support seat 1 (5) and a support seat 2 (6) located on the base. The loading cylinder (1) is located between the support seat 1 (5) and the support seat 2 (6). The support seat 1 (5) is provided with a connecting pipe 1 (7) that communicates with the loading cylinder (1). The power output rod (3) of the drive motor 1 passes through the inner hole of the connecting pipe 1 (7) and extends into the loading cylinder (1). The support seat 2 (6) is provided with a connecting pipe 2 (8) through which the power output rod (3) of the drive motor 2 passes. The power output rod (3) of the drive motor 2 passes through the inner hole of the connecting pipe 2 (8) and extends into the loading cylinder (1).

3. The loading test device for the forklift reducer (2) according to claim 2, characterized in that, The inner walls of the first connecting pipe (7) and the second connecting pipe (8) are of a tapered structure that gradually narrows from the loading cylinder (1) toward the outside.

4. The loading test device for the forklift reducer (2) according to claim 3, characterized in that, The sealing unit includes an oil tank body 1 (9) opened on the pipe wall of the connecting pipe 1 (7) and an oil tank body 2 (10) opened on the pipe wall of the connecting pipe 2 (8); the oil tank body 1 (9) has an oil return groove 1 (11) that communicates with the inner hole of the connecting pipe 1 (7) at the end away from the loading cylinder (1), and an oil collection groove 1 (13) that does not communicate with the inner hole of the connecting pipe 1 (7) at the end near the loading cylinder (1); the oil tank body 2 (10) has an oil return groove 2 (12) that communicates with the inner hole of the connecting pipe 2 (8) at the end away from the loading cylinder (1), and an oil collection groove 2 (14) that does not communicate with the inner hole of the connecting pipe 2 (8) at the end near the loading cylinder (1).

5. The loading test device for the forklift reducer (2) according to claim 4, characterized in that, The sealing unit also includes a sealing ring 1 (15) located on the side end of the connecting pipe 1 (7) near the support seat 1 (5) and a sealing ring 2 (16) located on the side end of the connecting pipe 2 (8) near the support seat 2 (6).

6. The loading test device for the forklift reducer (2) according to claim 1, characterized in that, The limiting unit includes a limiting member (24) on the base and a limiting seat (17) on the outer wall of the loading cylinder (1). The limiting member (24) can clamp the limiting seat (17) to limit the loading cylinder (1) and the forklift reducer (2).

7. The loading test device for the forklift reducer (2) according to claim 6, characterized in that, The limiting member (24) includes a limiting platform and a limiting drive member (18) disposed on the base. The limiting platform includes a lower support platform (19) and an upper support platform (20) located on the side of the lower support platform (19) near the loading cylinder (1). The limiting drive member (18) is disposed on the lower support platform (19). The limiting seat (17) can be limited on the upper support platform (20). The limiting drive member (18) can press the limiting seat (17) tightly.

8. The loading test device for the forklift reducer (2) according to claim 7, characterized in that, The power output rod (3) of the limiting drive member (18) is connected to a pressure plate (21), and the limiting drive member (18) can drive the pressure plate (21) to move downward to press the limiting seat (17).

9. The loading test device for the forklift reducer (2) according to claim 1, characterized in that, The locking unit includes multiple locking drive components (22) connected to the outer wall of the loading cylinder (1). The power output end of the locking drive component (22) is provided with a pressure plate (23). The locking drive component (22) can drive the pressure plate to press the forklift reducer (2) to lock the forklift drive component on the loading cylinder (1).

10. The loading test device for the forklift reducer (2) according to claim 9, characterized in that, Both the locking drive (22) and the limiting drive (18) are hydraulic cylinders. The locking drive (22) includes four cylinders evenly distributed on the outer wall of the loading cylinder (1). The locking drive (22) and the limiting seat (17) are staggered.

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