Forklift reducer output end dynamic load loading test device

Abstract

The utility model discloses a forklift speed reducer output end dynamic load loading test device which comprises a platform and a vertical load loading assembly, the vertical load loading assembly comprises a sample support and a hydraulic machine support, a hydraulic assembly is arranged on the hydraulic machine support, a forklift speed reducer is installed on the sample support and below the hydraulic assembly, and the hydraulic assembly is arranged on the platform. Rolling assemblies are arranged at the bottom of the hydraulic machine support and on the platform. The vertical load loading assembly for providing the vertical load is arranged in the middle of the forklift speed reducer, the dynamic load loading test of the output end of the forklift speed reducer can be achieved in the sample piece development stage, and the failure risk occurring when the forklift speed reducer is subjected to the dynamic load is avoided in advance; the time and money cost consumed by a subsequent whole vehicle road simulation experiment is reduced; the rolling assemblies are arranged on the upper portion and the lower portion of the output end of the forklift speed reducer, vertical pressure can be transmitted, it can be guaranteed that the output end of the forklift speed reducer is in a rotating state in the test, dynamic load loading testing is used, and the testing precision is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of drag bench, concretely relates to a forklift reducer output end dynamic load loading test device. BACKGROUND

[0002] At present, the forklift reducer output end often needs to carry out static load loading test in the development stage, but since the forklift reducer output end will be subjected to dynamic load in the driving process, theoretically, the output end dynamic load loading test also needs to be carried out, if the forklift reducer does not carry out the output end dynamic load loading test in the development stage, the actual road simulation test needs to be carried out to replace the output end dynamic load loading test, once the forklift reducer fails in the road simulation test, the forklift reducer needs to be disassembled and design change is needed, and the time and cost consumed are more.

[0003] Patent publication number CN118244108A, patent name is a kind of motor drag test mechanism and test equipment, it discloses "motor drag test mechanism includes test bench base, support frame, fixed torque measuring instrument, first motor and second motor;First motor is fixed to first support plate, and the one end of fixed torque measuring instrument is connected;Second motor is fixed to second support plate, and the other end of fixed torque measuring instrument is connected;Second motor and first motor are oppositely arranged, the axis of second motor and the axis of first motor are in same straight line, at this time, second motor and first motor are installed on support frame, and are installed on second support plate and first support plate respectively", above-mentioned technology is traditional motor drag test device, the deficiency of this scheme is for the scheme used on new energy automobile drive motor, cannot realize wheel end load loading test. UTILITY MODEL CONTENTS

[0004] The technical problem to be solved by the utility model lies in: how to provide a dynamic load loading test device for a forklift reducer with large speed ratio.

[0005] To solve the above technical problems, the utility model provides the following technical scheme:

[0006] A forklift reducer output end dynamic load loading test device, comprising a platform and a vertical load loading assembly located on the platform, the vertical load loading assembly comprising a sample support and a hydraulic machine support connected with the sample support, a hydraulic assembly being provided on the hydraulic machine support, the forklift reducer being installed below the hydraulic assembly, and a rolling assembly being provided on the bottom of the hydraulic machine support and the platform and being capable of contacting the forklift reducer output end.

[0007] The application designs a simple test device, a vertical load loading assembly providing vertical load is arranged in the middle of the forklift reducer, the dynamic load loading test of the forklift reducer output end can be realized in the development sample stage, the failure risk of the forklift reducer under the dynamic load is avoided in advance, and the time and money cost consumed by subsequent vehicle road simulation test are reduced; the rolling assembly is arranged on the upper and lower sides of the forklift reducer output end, vertical pressure can be transmitted, and the forklift reducer output end is in a rotating state in the test, dynamic load loading test is used, and test precision is improved.

[0008] As a further scheme of the utility model: the rolling assembly includes upper rolling piece and lower rolling piece, wherein the upper rolling piece is installed at the bottom of the hydraulic machine support, the lower rolling piece is installed on the platform, and the upper rolling piece and the lower rolling piece are located on the upper and lower sides of the forklift reducer output end respectively.

[0009] As a further scheme of the utility model: the upper rolling piece includes two groups of hydraulic load wheels, wherein the top of the two groups of hydraulic load wheels is installed on the hydraulic machine support, and the bottom can roll and contact the forklift reducer output end under the driving of the hydraulic assembly.

[0010] As a further scheme of the utility model: the lower rolling piece includes two groups of wheel shaft guide wheels, wherein the bottom of the two groups of wheel shaft guide wheels is installed on the platform, and the top can roll and contact the forklift reducer output end when the forklift reducer moves downward.

[0011] As a further scheme of the utility model: the strain gauge is installed on the wheel shaft guide wheel.

[0012] As a further scheme of the utility model: a gap with a range of 0.2mm-1mm exists between the top of the wheel shaft guide wheel and the output end of the measured workpiece.

[0013] Compared with the prior art, the utility model has the beneficial effects that:

[0014] 1. The application designs a simple test device, a vertical load loading assembly providing vertical load is arranged in the middle of the forklift reducer, a driving motor controlling rotating speed and a reducer assembly controlling torque are arranged on the two sides of the forklift reducer respectively, and a hydraulic machine providing vertical load is arranged in the middle of the forklift reducer, through adopting the technology of towing, the wheel end loading and reliability test of the forklift reducer can be simultaneously carried out, the limitation of traditional single test is got rid of, test efficiency is significantly improved, various complex loads of the wheel end under actual working conditions are simulated, actual working scenes can be more truly simulated, the test result is more accurate and reliable, dynamic load loading test is used, and test precision is improved.

[0015] 2. The application can realize the dynamic load loading test of the forklift reducer output end in the development sample stage through the test device, avoids the failure risk of the forklift reducer when subjected to dynamic load in advance, and reduces the time and money cost consumed by subsequent vehicle road simulation experiments;

[0016] 3. The platform design has universality and can be applied to testing of different types of mechanical parts, thereby improving the performance of the mechanical parts;

[0017] 4. The wheel shaft guide wheel and the hydraulic load wheel use high-strength guide wheels, which can not only transmit vertical pressure but also ensure that the forklift reducer output end is in a rotating state during the test, dynamic load loading test is used, and the test precision is improved;

[0018] 5. The implementation not only promotes the innovation and development of mechanical part testing technology, but also provides strong technical support and experimental platform for scientific research work and product development in related fields, and helps to promote the progress and development of the entire industry. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 FIG. 1 is a structural schematic view of a loadable wheel end pair towing test device according to an embodiment of the present application;

[0020] Figure 2 FIG. 2 is a structural schematic view of a vertical load loading assembly according to an embodiment of the present application;

[0021] BRIEF DESCRIPTION OF DRAWINGS

[0022] 1, platform; 2, driving motor; 3, driving motor support; 4, torque sensor support one; 5, sample support; 6, torque sensor support two; 7, reducer assembly support; 8, reducer assembly; 9, torque sensor one; 10, torque sensor two; 11, coupling one; 12, universal shaft one; 13, universal shaft two; 14, coupling two; 15, wheel shaft guide wheel; 16, hydraulic load wheel; 17, hydraulic machine; 18, hydraulic machine support; 19, forklift reducer output end; 20, forklift reducer; 21, forklift reduction box. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the present application more clear, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0024] REFERENCE Figure 1A forklift reducer output end dynamic load loading test device is installed on a platform 1, and the platform 1 is specifically provided with a driving motor 2, a driving motor support 3, a torque sensor support one 4, a sample support 5, a torque sensor support two 6, a reducer assembly support 7, a reducer assembly 8, a torque sensor one 9, a torque sensor two 10, a shaft coupling one 11, a universal shaft one 12, a universal shaft two 13, a shaft coupling two 14, an axle guide wheel 15, a hydraulic load wheel 16, a hydraulic machine 17, a hydraulic machine support 18, a forklift reducer output end 19, a forklift reducer 20 (i.e., a forklift reducer), and a forklift reducer box 21.

[0025] Referring to Figure 1 The driving motor 2 is installed on the driving motor support 3, the bottom of the driving motor support 3 is fixed on the top of the platform 1 through bolts or pins, and an installation groove is formed in the driving motor support 3, wherein the driving motor 2 is installed on the driving motor support 3 through bolts or pins, and the output end of the driving motor 2 is located in the installation groove.

[0026] Referring to Figure 1 And Figure 2 The sample support 5 is installed at the middle position of the top of the platform 1, the bottom of the sample support 5 is fixed on the platform 1 through bolts or pins, the hydraulic machine support 18 is installed on the side of the sample support 5 away from the driving motor 2, the hydraulic machine 17 is installed above the hydraulic machine support 18, and the hydraulic load wheel 16 is arranged below the hydraulic machine support 18, wherein the hydraulic machine 17 can drive the hydraulic load wheel 16 to descend to contact the forklift reducer output end 19 of the forklift reducer 20.

[0027] Further, the forklift reducer box 21 is installed below the hydraulic machine support 18 on the side of the sample support 5 away from the driving motor 2, and the forklift reducer 20 is installed on the forklift reducer box 21, and the input end of the forklift reducer 20 is arranged towards the driving motor 2.

[0028] Referring to Figure 1 The axle guide wheel 15 is further installed below the forklift reducer output end 19, wherein the bottom of the axle guide wheel 15 is installed on the platform 1 through a support, and a narrow gap exists between the top of the axle guide wheel 15 and the forklift reducer output end 19, and the range of the gap is 0.2mm-1mm; when the hydraulic machine 17 drives the hydraulic load wheel 16 to descend, the hydraulic load wheel 16 can contact the forklift reducer output end 19 and drive the forklift reducer output end 19 to contact the axle guide wheel 15; therefore, when the forklift reducer rotates, the hydraulic load wheel 16 and the axle guide wheel 15 can be driven to rotate together.

[0029] Referring to Figure 1A torque sensor bracket one 4 is further installed between the driving motor bracket 3 and the sample bracket 5, the bottom of the torque sensor bracket one 4 is fixed to the platform 1 through bolts or pins, the top of the torque sensor bracket one 4 is provided with a torque sensor one 9, one end of the torque sensor one 9 is connected with the driving motor 2 through a coupling one 11, the other end of the torque sensor one 9 is connected to the input end of the forklift reducer 20 through a universal shaft one 12, and the universal shaft one 12 is a spherical universal shaft.

[0030] Referring to Figure 1 A torque sensor bracket two 6 is further installed between the reducer assembly bracket 7 and the sample bracket 5, the bottom of the torque sensor bracket two 6 is fixed to the platform 1 through bolts or pins, the top of the torque sensor bracket two 6 is provided with a torque sensor two 10, one end of the torque sensor two 10 is connected with the reducer assembly 8 through a coupling two 14, the other end of the torque sensor two 10 is connected to the output end of the forklift reducer 20 through a universal shaft two 13, and the universal shaft two 13 is a spherical universal shaft.

[0031] The platform and various brackets of the application can select high-strength alloy steel as the core material, combined with advanced welding and machining technology, to ensure the stability and durability of the rack structure under high-strength load; the platform, bracket and other structures of the device are carefully designed to form a stable support frame, providing a solid guarantee for testing.

[0032] Each bracket of the application adopts an adjustable support frame design, combined with a precise locking mechanism, to realize rapid adjustment and precise positioning of the support position to adapt to the testing needs of mechanical parts of different specifications and types.

[0033] The specific operation principle of the application is as follows:

[0034] All the brackets are placed on the cast iron platform 1, the driving motor 2 is installed on the driving motor fixed bracket 3, the torque sensor one 9 is installed on the torque sensor bracket one 4, the coupling one 11 part is installed between the driving motor fixed bracket 3 and the torque sensor bracket one 4, the center of the shafting is adjusted using a dial gauge, the sample is installed on the sample bracket 5, the 500N.m torque sensor one 9 is connected with the sample through the spherical universal shaft one 12, the torque sensor two 10 is installed on the torque sensor bracket two 6, and is connected through the spherical universal shaft two 13, the reducer assembly 8 is installed on the reducer assembly bracket 7, is connected through the coupling two 14, and the center of the shafting is adjusted using a dial gauge, all the workpieces are installed, the brackets are fixed using bolts to prevent displacement due to vibration during testing.

[0035] The device is connected, the driving motor 2 and the reducer assembly 8 output rotation speed and torque, different pressures are applied to the hydraulic machine 17, the hydraulic load wheel 16 acts on the axle guide wheel 15 through the wheel; the hydraulic load wheel 16 transmits the pressure to the forklift reducer output end 9, and the axle guide wheel 15 stably supports the forklift reducer output end 9 below; in the process, when the driving motor 2 drives the forklift reducer output end 9 to rotate, the hydraulic load wheel 16 and the axle guide wheel 15 are in rolling contact with the forklift reducer output end 4, and the hydraulic load wheel 16 and the axle guide wheel 15 also rotate due to the action of friction; the strain gauge is attached to the axle guide wheel 15, and the axle vertical load can be measured; the torque sensor and the strain gauge are used for real-time monitoring and recording of the rotation speed, torque, stress and the like of the wheel end; the measurement system adopts high-precision sensors and advanced data acquisition technology, so as to ensure the accuracy and reliability of the test data; in the process, the motor temperature, fault diagnosis and the like can be monitored, and a plurality of test functions of no-load operation can be monitored.

[0036] By changing the size of the pressure applied by the hydraulic machine 17 and driving different rotation speeds and torques, the dynamic load loading test of the forklift reducer output end can be realized.

[0037] The test device can be connected with an external controller, the controller is responsible for the operation control of the whole test bench, including the realization of functions such as starting, stopping, speed regulation, loading and the like, test parameters and conditions are conveniently set, the test process is monitored, and test results are displayed and recorded in real time. The controller adopts an existing conventional controller.

[0038] The above embodiments are only used to illustrate the technical solutions of the present application, but not limited thereto; although the present application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A dynamic load test device for a forklift reducer output end, comprising a platform (1) and a vertical load loading assembly located on the platform (1), characterized in that, The vertical load loading assembly comprises a sample support (5) and a hydraulic machine support (18) connected with the sample support (5), a hydraulic assembly is arranged on the hydraulic machine support (18), a forklift reducer is arranged below the hydraulic assembly and on the sample support (5), and rolling assemblies capable of contacting the output end of the forklift reducer are arranged on the bottom of the hydraulic machine support (18) and the platform (1).

2. The dynamic load test device for the output end of a forklift reducer according to claim 1, characterized in that: The rolling assembly comprises upper and lower rolling members, wherein the upper rolling member is arranged on the bottom of the hydraulic machine support (18), the lower rolling member is arranged on the platform (1), and the upper and lower rolling members are respectively arranged on the upper and lower sides of the output end of the forklift reducer.

3. The dynamic load test device for the output end of a forklift reducer according to claim 2, characterized in that: The upper rolling member comprises two groups of hydraulic load wheels (16), wherein the top of the two groups of hydraulic load wheels (16) is arranged on the hydraulic machine support (18), and the bottom can roll and contact the output end of the forklift reducer under the driving of the hydraulic assembly.

4. The dynamic load test device for the output end of a forklift reducer according to claim 2, characterized in that: The lower rolling member comprises two groups of axle guide wheels (15), wherein the bottom of the two groups of axle guide wheels (15) is arranged on the platform (1), and the top can roll and contact the output end of the forklift reducer when the forklift reducer moves downward.

5. The dynamic load test device for the output end of a forklift reducer according to claim 4, characterized in that: Strain gauges are arranged on the axle guide wheels (15).

6. The dynamic load test device for the output end of a forklift reducer according to claim 4, characterized in that: There is a gap of 0.2mm-1mm between the top of the axle guide wheels (15) and the output end of the measured workpiece.

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