A testing device

Abstract

The present invention discloses a testing device, which includes a testing platform detachably provided with a plurality of testing modules, a tractor connected to the testing platform through a hinged device, and a power output module provided on the tractor and used to provide traction power and testing power to the tractor and the testing modules respectively. Among them, the testing modules are used to perform preset testing operations on the working device of a track engineering vehicle. The above-mentioned testing device can quickly collect test data of the working device, verify the performance of the working device, and evaluate the working effect of the working device, so as to provide a reliable basis for the production of large-scale track construction machinery. At the same time, compared with the traditional setting method of connecting two vehicle bodies through couplers, the testing device provided by the embodiment of the present invention can configure corresponding testing modules on the testing platform according to needs to correspondingly complete corresponding testing tasks, which can greatly shorten the development cycle of the device and reduce the production cost of the device.

Description

Technical Field

[0001] The present invention relates to the technical field of track engineering, and particularly relates to a testing device. Background Art

[0002] At present, in view of the running safety requirements of rail vehicles, a series of maintenance and repair operations need to be carried out on the track through the working device of a track engineering vehicle.

[0003] In the prior art, a testing device is mainly used to test the working device of a track engineering vehicle. Generally speaking, the testing device includes two vehicle bodies, that is, it is often necessary to couple the two vehicle bodies together through a coupler to realize the test of the working device. However, the above-mentioned test completed by coupling two vehicle bodies will lead to a relatively long overall development cycle and high production cost of the testing device.

[0004] Therefore, how to avoid the long development cycle and high production cost of traditional testing devices is a technical problem that those skilled in the art need to solve at present. Summary of the Invention

[0005] The object of the present invention is to provide a testing device that can perform principle verification, data collection and effect evaluation on the working device of a track engineering machine, and at the same time can shorten the development cycle and reduce the production cost.

[0006] To achieve the above object, the present invention provides a testing device, including:

[0007] A testing platform detachably provided with a plurality of testing modules, and the testing modules are used to perform preset testing operations on the working device of a track engineering vehicle;

[0008] A tractor connected to the testing platform through a hinge device;

[0009] A power output module provided on the tractor for providing traction power and testing power to the tractor and the testing modules respectively.

[0010] Optionally, the hinge device includes a front ear plate, a fixed sleeve, a rear ear plate and a pressing plate fastening component. The front ear plate and the rear ear plate are respectively fixed to the tractor and the testing platform. The fixed sleeve is fixed to the front ear plate. After the rear ear plate is sleeved on the fixed sleeve, it is fixed to the fixed sleeve through the pressing plate fastening component to realize the axial limit of the rear ear plate.

[0011] Optionally, the pressing plate fastening component includes a bolt component and a pressing plate provided on the top of the fixed sleeve. The pressing plate and the fixed sleeve are both provided with central holes for the bolts of the bolt component to pass through. The nut of the bolt component is screwed with the bolt to fasten the pressing plate and the fixed sleeve.

[0012] Optionally, a first wear-resistant sleeve is provided between the rear ear plate and the front ear plate, and a second wear-resistant sleeve is provided between the fixed sleeve and the rear ear plate.

[0013] Optionally, it further includes a control system connected to the power output module. The control system includes a first control box for controlling the start and stop of the tractor and a second control box for controlling the operation of the test module. The first control box and the second control box are respectively arranged on the tractor and the test platform.

[0014] Optionally, the power output module includes an internal combustion engine, a generator, a fuel tank, and a power supply unit. The fuel tank is connected to the internal combustion engine to supply fuel to the internal combustion engine. The generator is connected to the output end of the internal combustion engine and the power supply unit to generate electric energy and transmit it to the power supply unit. The power supply unit is connected to the first control box and the second control box.

[0015] Optionally, the power output module further includes a hydraulic pump connected to the output end, and a hydraulic oil tank assembly connected to the hydraulic pump through a pipeline. The hydraulic pump is connected to the test module through a pipeline to supply hydraulic power to the test module.

[0016] Optionally, the tractor includes a vehicle body, and two sets of wheel pairs are provided below the vehicle body. The two sets of wheel pairs include at least one set of driving wheel pairs.

[0017] Optionally, the driving wheel pair on either side of the vehicle body includes a motor, a planetary reducer, and a rail wheel. The output end of the motor is connected to the input end of the planetary reducer to drive the rotation of the outer shell of the planetary reducer. The rail wheel is fixedly connected to the flange of the outer shell through a fastener;

[0018] It further includes a support flange and a fixed bracket fixedly connected to the vehicle body. One end ear plate of the fixed bracket is fixedly connected to the fixed end of the motor and one fixed end of the planetary reducer. The other fixed end of the planetary reducer is fixedly connected to one end of the support flange. The other end of the support flange is fixedly connected to the other end ear plate of the fixed bracket.

[0019] Optionally, the test platform includes a frame and a driven wheel pair provided below the frame.

[0020] Compared with the above background art, the test equipment provided by the embodiments of the present invention includes a test platform, a tractor, and a power output module. Among them, a number of test modules are detachably provided on the test platform, and the test modules are used to perform preset test operations on the working device of the track engineering vehicle; the tractor is connected to the test platform through a hinge device; a power output module is provided on the tractor, and the power output module is used to provide traction power and test power to the tractor and the test modules respectively. In this way, by providing traction power to the tractor through the power output module, the tractor is connected to the test platform through the hinge device, and the hinge device is used to transmit the traction force to the test platform, and the test platform and the tractor can rotate relative to each other. In this way, the tractor can tow the test platform and the test modules to run along the track to the test point, and then provide test power to the test modules through the power output module to complete the corresponding test work. The above test equipment can quickly collect the test data of the working device, verify the performance of the working device, and evaluate the working effect of the working device, so as to provide a reliable basis for the production of large-scale track construction machinery; at the same time, compared with the traditional setting method of connecting two vehicle bodies through couplers, the test equipment provided by the embodiments of the present invention can configure corresponding test modules on the test platform according to needs to complete the corresponding test tasks, which can greatly shorten the equipment development cycle and reduce the production cost of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained according to the provided drawings.

[0022] Figure 1 is a schematic structural diagram of the test equipment provided by the embodiments of the present invention;

[0023] Figure 2 is a detailed structural diagram of the test equipment provided by the embodiments of the present invention;

[0024] Figure 3 is Figure 1 an assembly structure schematic diagram of the hinge device in;

[0025] Figure 4 is Figure 2 an assembly structure schematic diagram of the driving wheel pair in.

[0026] Wherein:

[0027] 1 - Tractor, 11 - Vehicle body, 12 - Driving wheel pair, 121 - Motor, 122 - Planetary reducer, 123 - Rail wheel, 124 - Support flange, 125 - Fixed bracket, 126 - Bolt pair, 13 - Internal combustion engine, 14 - Generator, 15 - Hydraulic pump, 16 - Fuel tank, 17 - Hydraulic oil tank assembly, 18 - Power supply unit, 19 - First control box;

[0028] 2 - Test platform, 21 - Frame, 22 - Test module, 23 - Driven wheel pair, 24 - Second control box;

[0029] 3 - Articulation device, 31 - Front ear plate, 32 - First wear-resistant sleeve, 33 - Nut, 34 - Bolt, 35 - Pressure plate, 36 - Second wear-resistant sleeve, 37 - Rear ear plate, 38 - Fixed sleeve;

[0030] 4 - Hydraulic oil outlet pipe;

[0031] 5 - Hydraulic oil return pipe;

[0032] 6 - Power circuit;

[0033] 7 - Control circuit. Detailed implementation manner

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0035] The core of the present invention is to provide a test device that can verify the principle, collect data, and evaluate the effect of the working device of track construction machinery, and at the same time can shorten the development cycle and reduce the production cost.

[0036] In order to enable those skilled in the art in this technical field to better understand the solution of the present invention, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific implementation manners.

[0037] It should be noted that the orientation words such as "upper end, lower end, left side, right side" described below are defined based on the accompanying drawings of the specification.

[0038] Please refer to Figures 1 to 4 , Figure 1 which is the structural schematic diagram of the test device provided by the embodiment of the present invention; Figure 2 which is the detailed structural diagram of the test device provided by the embodiment of the present invention; Figure 3 is Figure 1 the assembly structural schematic diagram of the articulation device in Figure 4 isFigure 2 Schematic diagram of the assembly structure of the driving wheel pair in the middle

[0039] The test equipment provided by the embodiment of the present invention includes a tractor 1, a test platform 2 and a power output module. Among them, a plurality of test modules 22 are detachably arranged on the test platform 2, and the test modules 22 are used to perform preset test operations on the working device of the rail vehicle; the tractor 1 is connected to the test platform 2 through a hinge device 3; a power output module is provided on the tractor 1, and the power output module is used to provide traction power and test power to the tractor 1 and the test modules 22 respectively.

[0040] Of course, according to actual needs, the above-mentioned preset test operations include, but are not limited to, test links such as principle verification, data collection, and effect evaluation of the working device.

[0041] In this way, traction power is provided to the tractor 1 through the power output module, so that the tractor 1 can tow the test platform 2 and the test modules 22 to run along the track to the test point, and then test power is provided to the test modules 22 through the power output module to complete the corresponding test work. The above-mentioned test equipment can quickly collect the test data of the working device, verify the performance of the working device, and evaluate the working effect of the working device, so as to provide a reliable basis for the production of large-scale rail construction machinery.

[0042] In addition, compared with the traditional setting method of connecting two vehicle bodies through couplers, the test equipment provided by the embodiment of the present invention can greatly shorten the development cycle of the equipment and reduce the production cost of the equipment.

[0043] It should be noted that since a plurality of different test modules 22 are detachably arranged on the test platform 2, different test modules 22 can be configured on the test platform 2 according to different working devices to correspondingly complete the test tasks of the corresponding working devices, which is convenient for the testing of different working devices and improves the efficiency of the test work to a certain extent.

[0044] Specifically, the tractor 1 is connected to the test platform 2 through a hinge device 3. The hinge device 3 is used to transmit the traction force to the test platform 2, and under the connection action of the hinge device 3, the test platform 2 and the tractor 1 can rotate relative to each other.

[0045] The articulated device 3 specifically includes a front ear plate 31, a fixed sleeve 38, a rear ear plate 37 and a pressing plate fastening assembly. The front ear plate 31 and the rear ear plate 37 are respectively fixed to the tractor 1 and the test platform 2. The front ear plate 31 is fixed to the end of the tractor 1, and the rear ear plate 37 is fixed to the front end of the test platform 2. At the same time, the fixed sleeve 38 is fixed to the front ear plate 31. Correspondingly, the front ear plate 31 is provided with a fixing hole, and the fixed sleeve 38 is coaxially welded with the fixing hole on the front ear plate 31. After the rear ear plate 37 is sleeved on the fixed sleeve 38, it is fixed to the fixed sleeve 38 through the pressing plate fastening assembly to realize the axial limit of the rear ear plate 37.

[0046] More specifically, the above-mentioned pressing plate fastening assembly includes a bolt assembly and a pressing plate 35. Among them, the pressing plate 35 is arranged on the top of the fixed sleeve 38. Both the pressing plate 35 and the fixed sleeve 38 are provided with central holes for the bolt 34 of the bolt assembly to pass through. After the bolt 34 successively passes through the central hole of the fixed sleeve 38 from bottom to top and extends out of the central hole of the pressing plate 35, the nut 33 of the bolt assembly is screwed with the screw rod extending out of the central hole of the pressing plate 35 to fasten the pressing plate 35 and the fixed sleeve 38 together.

[0047] The pressing plate 35 is coaxially arranged with the fixed sleeve 38. The bottom of the pressing plate 35 has an inward concave positioning groove. The fixed sleeve 38 is in clearance fit with the positioning groove of the pressing plate 35 to realize positioning. The positioning groove has an inner wall that contacts and abuts against the upper end surface of the fixed sleeve 38. The bottom surface of the pressing plate 35 is slightly higher than the upper end surface of the rear ear plate 37, that is, there is a certain axial gap between the pressing plate 35 and the rear ear plate 37, so that a certain amount of movement can be maintained axially for the rear ear plate 37.

[0048] In addition, in order to improve the service life of the articulated device 3, a first wear-resistant sleeve 32 is provided between the rear ear plate 37 and the front ear plate 31, and a second wear-resistant sleeve 36 is provided between the fixed sleeve 38 and the rear ear plate 37.

[0049] Both the first wear-resistant sleeve 32 and the second wear-resistant sleeve 36 have the characteristics of small friction coefficient and wear resistance. The first wear-resistant sleeve 32 is coaxially and movably connected with the fixed sleeve 38. The bottom surface of the first wear-resistant sleeve 32 presses against the upper end surface of the front ear plate 31, and the top surface of the first wear-resistant sleeve 32 contacts and abuts against the lower end surface of the rear ear plate 37, that is, the lower end surface of the rear ear plate 37 presses on the top surface of the first wear-resistant sleeve 32. At the same time, the upper end surface of the rear ear plate 37 is slightly lower than the upper end surface of the fixed sleeve 38. The second wear-resistant sleeve 36 is coaxially and movably connected with the fixed sleeve 38. The bottom surface of the second wear-resistant sleeve 36 presses against the upper end surface of the front ear plate 31, and the top surface of the second wear-resistant sleeve 36 is slightly lower than the upper end surface of the fixed sleeve 38. It should be noted that both the first wear-resistant sleeve 32 and the rear ear plate 37 are coaxial with the fixed sleeve 38, and there are certain radial clearances between the first wear-resistant sleeve 32 and the fixed sleeve 38, and between the rear ear plate 37 and the fixed sleeve 38, so as to facilitate the installation of the second wear-resistant sleeve 36. In this way, the test platform 2 can rotate a certain angle around the axis of the fixed sleeve 38.

[0050] To optimize the above embodiments, a control system connected to the power output module is further included. The control system includes a first control box 19 for controlling the start and stop of the tractor 1 and a second control box 24 for controlling the operation of the test module 22. The first control box 19 and the second control box 24 are respectively arranged on the tractor 1 and the test platform 2.

[0051] Specifically, the power output module includes an internal combustion engine 13, a generator 14, a fuel tank 16 and a power supply unit 18. Among them, the internal combustion engine 13 is installed on the tractor 1, the fuel tank 16 is installed on the tractor 1 and connected to the internal combustion engine 13 to supply fuel to the internal combustion engine 13. The generator 14 is connected to the output end of the internal combustion engine 13 and the power supply unit 18 to generate electric energy and transmit it to the power supply unit 18. The power supply unit 18 is connected to the first control box 19 and the second control box 24. The power supply unit 18 can convert the electric energy generated by the generator 14 into the required frequency, voltage and current and output them to the control system, the tractor 1 and the test platform 2.

[0052] It should be noted that the first control box 19 integrates control circuits and programs, and can control the power supply of the power supply unit 18 and the start, stop and speed regulation of the internal combustion engine 13, etc. The first control box 19 can be specifically set as a control box with an internal PLC.

[0053] To facilitate the test module 22 to complete the test operation through hydraulic power, the power output module further includes a hydraulic pump 15 and a hydraulic oil tank assembly 17. Among them, the hydraulic pump 15 is connected to the output end of the internal combustion engine 13, and the hydraulic oil tank assembly 17 is installed on the tractor 1 for storing hydraulic oil and dissipating heat. The hydraulic oil tank assembly 17 is connected to the hydraulic pump 15 through a pipeline, and the hydraulic pump 15 is connected to the test module 22 through a pipeline to convey hydraulic power to the test module 22. In other words, when the test module 22 needs to complete the corresponding test operation through hydraulic power, it can be achieved by starting the hydraulic pump 15.

[0054] Here, it should be noted that the generator 14 and the hydraulic pump 15 can be connected in series or in parallel to the output end of the internal combustion engine 13 to generate electric energy and hydraulic energy respectively.

[0055] According to the conveying needs, a hydraulic oil outlet pipe 4 and a hydraulic oil return pipe 5 can also be arranged between the tractor 1 and the test platform 2. The two ends of the hydraulic oil outlet pipe 4 and the hydraulic oil return pipe 5 are respectively connected to the end of the tractor 1 and the front end of the test platform 2. The hydraulic oil outlet pipe 4 is used to convey hydraulic oil to the test platform 2, and the hydraulic oil return pipe 5 is used for the hydraulic oil to flow back to the tractor 1. Of course, there are also several corresponding oil pipelines on the tractor 1 and the test platform 2 that are communicated with the hydraulic oil outlet pipe 4 and the hydraulic oil return pipe 5, as long as the conveying and reflux of hydraulic oil can be ensured. This article does not make specific restrictions on this.

[0056] To complete the testing work, in addition to including the second control box 24 and several testing modules 22, the testing platform 2 further includes a vehicle frame 21 and a driven wheel pair 23 disposed below the vehicle frame 21. The vehicle frame 21 provides an installation carrier for the testing modules 22, the driven wheel pair 23, and the second control box 24. The testing modules 22 are installed in the middle of the vehicle frame 21, are connected to hydraulic power, power electricity, and control electricity as needed, and can transmit feedback signals to the second control box 24.

[0057] The second control box 24 integrates control circuits and programs to control the testing modules 22 to perform testing operations. For the specific testing functions of the testing modules 22, reference can be made to the content of the prior art, and details will not be elaborated here. Of course, the second control box 24 can also be specifically set as a control box with a built-in PLC.

[0058] To achieve the transmission of power electricity, the power supply unit 18 described above mainly transmits power electricity to the testing modules 22 through the power circuit 6. At the same time, to achieve the transmission of control electricity, the power supply unit 18 mainly transmits control electricity to the second control box 24 through the control circuit 7.

[0059] On the above basis, the tractor 1 includes a vehicle body 11, and two sets of wheel pairs are disposed below the vehicle body 11. The two sets of wheel pairs include a set of driving wheel pairs 12 and a set of driven wheel pairs, or include two sets of driving wheel pairs 12.

[0060] That is to say, four driving wheel pairs 12 can be installed below the vehicle body 11 of the tractor 1 to convert the electric energy from the power supply unit 18 into traction force to realize the movement of the vehicle body 11. Of course, the traction function can also be realized by using two driving wheel pairs 12 and two driven wheel pairs.

[0061] Specifically, the driving wheel pair 12 on either side of the vehicle body 11 includes a motor 121, a planetary reducer 122, and a rail wheel 123. The output end of the motor 121 is connected to the input end of the planetary reducer 122 to drive the rotation of the housing of the planetary reducer 122. The rail wheel 123 is fixedly connected to the flange of the housing through a fastener, so as to realize the power transmission of the motor 121. At the same time, it also includes a support flange 124 and a fixed bracket 125 fixedly connected to the vehicle body 11. One end ear plate of the fixed bracket 125 is fixedly connected to the fixed end of the motor 121 and one fixed end of the planetary reducer 122. The other fixed end of the planetary reducer 122 is fixedly connected to one end of the support flange 124, and the other end of the support flange 124 is fixedly connected to the other end ear plate of the fixed bracket 125.

[0062] More specifically, the fixed end stop of the motor 121 is inserted into the inner hole of the ear plate at one end of the fixed bracket 125 for positioning, and is connected to the ear plate at this end of the fixed bracket 125 through mounting bolts. The output end of the motor 121 is connected to the input end of the planetary reducer 122 to transmit power to the planetary reducer 122 to drive the housing of the planetary reducer 122 to rotate. The fixed end flange of the planetary reducer 122 has an interference fit with the inner hole of the fixed end of the motor 121 of the fixed bracket 125, and the fixed end flange of the planetary reducer 122 and the ear plate at this end of the fixed bracket 125 are locked by bolts. The other fixed end flange of the planetary reducer 122 has an interference fit with the inner hole of the support flange 124 to achieve the support and positioning of the planetary reducer 122. The inner hole of the rail wheel 123 is coaxially and has an interference fit with the housing of the planetary reducer 122. The end face of the rail wheel 123 is connected to the flange of the housing of the planetary reducer 122 through bolts and shear pins to transmit torque and rotational speed. The inner hole at one end of the support flange 124 has an interference fit with the fixed end flange of the planetary reducer 122, and the outer circle at the other end of the support flange 124 has an interference fit with the inner hole of the ear plate at the other end of the fixed bracket 125, and the support flange 124 and the ear plate at the other end of the fixed bracket 125 are locked by bolts. At the same time, the upper bottom plate of the fixed bracket 125 is fixedly connected to the vehicle body 11 through the bolt pair 126.

[0063] During assembly, first, assemble the tractor 1 and park it on the track. Then, prepare the fittings of the hinge device 3, install the first wear-resistant sleeve 32 on the front ear plate 31, hoist the assembled test platform 2 (or assemble it after hinging), and position it so that the rear ear plate 37 and the fixed sleeve 38 are coaxially installed. Install the second wear-resistant sleeve 36 coaxially with the fixed sleeve 38, and then install the pressure plate 35 and lock the bolt assembly to the hinge device 3. Finally, install the hydraulic oil outlet pipe 4, the hydraulic oil return pipe 5, the power circuit 6, the control circuit 7 and the corresponding test module 22 as required for the operation. After the connection is completed, conduct test debugging.

[0064] It should be noted that in this specification, relative terms such as first and second are only used to distinguish one entity from several other entities, and do not necessarily require or imply any actual relationship or order between these entities.

[0065] The above has introduced the test equipment provided by the present invention in detail. Specific examples are used herein to elaborate on the principle and implementation manner of the present invention. The description of the above embodiments is only used to help understand the solution and its core idea of the present invention. It should be pointed out that for those of ordinary skill in the art in this technical field, without departing from the principle of the present invention, several improvements and modifications can be made to the present invention, and these improvements and modifications also fall within the protection scope of the claims of the present invention.

Claims

1. A testing device, characterized in that, Comprising: A test platform (2) detachably provided with a plurality of test modules (22), the test modules (22) being used to perform a preset test operation on the working device of the rail engineering vehicle; A tractor (1) connected to the test platform (2) through a hinge device (3); A power output module provided on the tractor (1) for providing traction power and test power to the tractor (1) and the test modules (22) respectively; The hinge device (3) includes a front ear plate (31), a fixed sleeve (38), a rear ear plate (37) and a pressing plate fastening assembly. The front ear plate (31) and the rear ear plate (37) are respectively fixedly connected to the tractor (1) and the test platform (2). The fixed sleeve (38) is fixedly connected to the front ear plate (31). After the rear ear plate (37) is sleeved on the fixed sleeve (38), it is fixedly connected to the fixed sleeve (38) through the pressing plate fastening assembly to realize the axial limit of the rear ear plate (37); The pressing plate fastening assembly includes a bolt assembly and a pressing plate (35) provided at the top of the fixed sleeve (38). Both the pressing plate (35) and the fixed sleeve (38) are provided with central holes for the bolt (34) of the bolt assembly to pass through. The pressing plate (35) is fastened to the fixed sleeve (38) by screwing the nut (33) of the bolt assembly with the bolt (34); The pressing plate (35) and the fixed sleeve (38) are coaxially arranged. The bottom of the pressing plate (35) has a concave positioning groove. The fixed sleeve (38) is in clearance fit with the positioning groove of the pressing plate (35) to realize positioning. The positioning groove has an inner wall that contacts and abuts against the upper end surface of the fixed sleeve (38). There is a certain axial gap between the pressing plate (35) and the rear ear plate (37) to keep a certain amount of movement in the axial direction of the rear ear plate (37); A first wear-resistant sleeve (32) is provided between the rear ear plate (37) and the front ear plate (31), and a second wear-resistant sleeve (36) is provided between the fixed sleeve (38) and the rear ear plate (37), and the test platform (2) can rotate a certain angle around the axis of the fixed sleeve (38); It further includes a control system connected to the power output module. The control system includes a first control box (19) for controlling the start and stop of the tractor (1) and a second control box (24) for controlling the operation of the test modules (22). The first control box (19) and the second control box (24) are respectively provided on the tractor (1) and the test platform (2); The power output module includes an internal combustion engine (13), a generator (14), a fuel tank (16) and a power supply unit (18). The fuel tank (16) is connected to the internal combustion engine (13) to supply fuel to the internal combustion engine (13). The generator (14) is connected to the output end of the internal combustion engine (13) and the power supply unit (18) to generate electric energy and transmit it to the power supply unit (18). The power supply unit (18) is connected to the first control box (19) and the second control box (24); The power output module further includes a hydraulic pump (15) connected to the output end, and a hydraulic oil tank assembly (17) connected to the hydraulic pump (15) through a pipeline. The hydraulic pump (15) is connected to the test module (22) through a pipeline to convey hydraulic power to the test module (22).

2. The test device according to claim 1, characterized in that The tractor (1) includes a vehicle body (11). Two sets of wheel pairs are provided below the vehicle body (11). The two sets of wheel pairs include at least one set of driving wheel pairs (12).

3. The testing device according to claim 2, wherein, The driving wheel pair (12) on either side of the vehicle body (11) includes a motor (121), a planetary reducer (122) and a rail wheel (123). The output end of the motor (121) is connected to the input end of the planetary reducer (122) to drive the housing of the planetary reducer (122) to rotate. The rail wheel (123) is fixedly connected to the flange of the housing through a fastener; It further includes a support flange (124) and a fixed bracket (125) fixedly connected to the vehicle body (11). One end ear plate of the fixed bracket (125) is fixedly connected to the fixed end of the motor (121) and one fixed end of the planetary reducer (122). The other fixed end of the planetary reducer (122) is fixedly connected to one end of the support flange (124). The other end of the support flange (124) is fixedly connected to the other end ear plate of the fixed bracket (125).

4. The test device according to claim 1, characterized in that, The test platform (2) includes a frame (21) and a driven wheel pair (23) provided below the frame (21).

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