Engineering vehicle integrated electric drive bridge abutment test device

Abstract

The utility model discloses an engineering vehicle integrated electric drive bridge abutment test device, which comprises a supporting table, moving blocks are symmetrically arranged on the left and right sides above the supporting table, limiting mechanisms are arranged on the left and right sides above the moving blocks, and each limiting mechanism comprises a supporting plate, a limiting plate, a rack, a gear and a limiting groove. A supporting plate is fixedly mounted on the rear side of the upper portion of the moving block. According to the integrated electrically-driven bridge bench test device for the engineering vehicle, the position of an electrically-driven bridge can be fixed and limited by arranging the limiting mechanism, position deviation of the electrically-driven bridge in the experiment process can be avoided, and therefore the accuracy of the electrically-driven bridge test is improved; the device can clamp and fix electric drive bridges of different sizes, so that the practicability of the device is improved, in addition, a height adjusting mechanism is arranged, the height of the rack can be adjusted, and therefore the device is suitable for operation tests of operators of different heights.

Description

Technical Field

[0001] The utility model relates to the technical field of electric drive axle tests, and particularly relates to a test device for an integrated electric drive axle test bench of an engineering vehicle. Background Technique

[0002] An electric drive axle is a device that converts electrical energy into mechanical energy, mainly used to drive vehicles or other means of transportation. It usually consists of one or more electric motors, a speed reducer, and other related components. The electric drive axle is one of the core components of an electric vehicle, and its performance and reliability directly affect the operation quality of the entire vehicle. To ensure the safety of vehicle driving, the electric drive axle is often tested and detected when it is put into use. Currently, there are various test devices for integrated electric drive axles of engineering vehicles on the market, but there are still some drawbacks.

[0003] The existing integrated electric drive axle bench test device for engineering vehicles can better verify the product by reducing costs. However, the electric drive axle will vibrate during the test due to the drive of the motor, which will cause the position of the electric drive axle to shift, thereby affecting the test results. In addition, the electric drive axles used in vehicles are of different sizes. The general test device can only test one size of electric drive axle, which lacks practicality. Secondly, the bench supports the electric drive axle, and the height of the operators of each test is different. The general bench cannot be adjusted in height and cannot be used for operators of different heights. For example, the Chinese utility model patent with authorization announcement number CN221124737U discloses a parallel axis electric drive axle accelerated fatigue life test The device includes a high-torque motor, the output end of which is connected to the electric drive axle reducer through a spline shaft, and a large transition housing is connected between the two. By replacing a high-torque motor, the input torque that can be used in fatigue life testing is increased; a transition housing is added between the electric drive axle reducer and the high-torque motor to connect, support and position the high-torque motor; the spline shaft is used to connect the output shaft of the high-torque motor and the input shaft of the electric drive axle reducer for power transmission. The device has the advantages of simple structure, easy disassembly and assembly, high connection precision, strong versatility of design scheme, and low cost. It replaces the huge industrial motor, increases the input torque of the test, and can meet the fatigue life test research requirements of large torque, thereby better verifying product performance. However, this device reduces the cost and can better verify the product. However, during the test, the electric drive bridge will vibrate due to the drive of the motor, which will cause the position of the electric drive bridge to shift, thus affecting the test results. In addition, the electric drive bridges used by vehicles are of different sizes. General test equipment can only test one size of electric drive bridge, which lacks practicality. Secondly, the test bench supports the electric drive bridge, and the height of the operators in each test is different. The general test bench cannot be adjusted in height and cannot be used for operators of different heights. Therefore, we propose an integrated electric drive bridge bench test device for engineering vehicles to solve the above problems. Utility Model Content

[0004] The purpose of the present utility model is to provide an integrated electric drive axle bench test device for engineering vehicles to solve the problems of the current integrated electric drive axle bench test device for engineering vehicles proposed in the above background technology, so as to better verify the product by reducing the cost. However, the electric drive axle will vibrate due to the drive of the motor during the test, which will cause the position of the electric drive axle to shift, thereby affecting the test results. In addition, the electric drive axles used in vehicles are of different sizes, and the general test device can only test one size of electric drive axle, which lacks practicality. Secondly, the bench supports the electric drive axle, and the height of the operators for each test is different. The general bench cannot be adjusted in height and cannot be used for operators of different heights to operate.

[0005] To achieve the above object, the utility model provides the following technical solution: An integrated electric drive axle test device for engineering vehicles, comprising:

[0006] A support platform, with moving blocks symmetrically installed on the left and right above the support platform;

[0007] It further includes:

[0008] Limiting mechanisms are arranged on the left and right sides above the moving blocks. The limiting mechanisms include support plates, limiting plates, racks, gears, and limiting grooves. A support plate is fixedly installed at the rear side above the moving block, and a limiting groove is formed inside the support plate. A limiting plate is slidably installed at the front side inside the limiting groove, and a rack is fixedly installed above the limiting plate;

[0009] A length adjusting mechanism is arranged below the left side of the moving block. The length adjusting mechanism includes an electric telescopic rod, a sliding block, a connecting rod, a fixed rod, a rotating rod, and a connecting block. A sliding block is installed below the left side of the moving block, and a connecting rod is arranged inside the sliding block. The right side of the connecting rod is connected to a rotating rod, and the lower right side of the rotating rod is rotatably connected to a connecting block. An electric telescopic rod is installed below the connecting block.

[0010] Preferably, an electric drive axle body is placed above the moving block, a limiting plate is arranged above the electric drive axle body, and sensors are installed on the left and right sides outside the moving block.

[0011] Preferably, the rear side of the rack is meshed with a gear, and the outer end of the gear is connected to a motor body.

[0012] Preferably, the outer end of the electric drive axle body is connected to a variable frequency motor, and an electric telescopic rod is fixedly connected to the left side of the variable frequency motor. A fixing plate is fixedly installed on the outer side of the electric telescopic rod, and the fixing plate is fixedly connected to the support platform.

[0013] Preferably, the sliding block is slidably installed on the outer side of the fixed rod, and the fixed rods are symmetrically installed before and after in the middle of the support platform.

[0014] Preferably, moving frames are symmetrically and fixedly installed below the left and right sides of the support platform, and a support frame is slidably connected to the outer side of the moving frame, and the support frame is directly placed on the ground.

[0015] Preferably, a support rod is installed inside the moving frame, a fixing block is arranged below the middle of the support rod, and an electric telescopic rod is fixedly connected to the lower side of the fixing block.

[0016] Compared with the prior art, the beneficial effects of the present utility model are as follows: for the integrated electric drive bridge test device of the engineering vehicle, by setting a limiting mechanism, the position of the electric drive bridge can be fixed and limited, which can avoid the position deviation of the electric drive bridge during the experiment, thereby improving the accuracy of the electric drive bridge test. At the same time, a length adjustment mechanism is set, so that the device can clamp and fix electric drive bridges of different sizes, thereby improving the practicality of the device. In addition, a height adjustment mechanism is set, which can adjust the height of the test bench, so that it is suitable for operators of different heights to conduct operation tests;

[0017] 1. A moving block, an electric drive bridge body, a support plate and a limiting plate are provided. By placing the electric drive bridge body above the moving block and then turning on the motor body, the gear rotates. When the gear rotates, the rack engaged and connected to the front side moves up and down. At the same time, a limiting plate is installed below the rack, and the rear side of the limiting plate is located in the limiting groove opened inside the support plate. That is, when the rack moves downward, it will push the limiting plate to move downward inside the limiting groove, and it can move to be closely attached to the electric drive bridge body, so as to limit the position of the electric drive bridge body.

[0018] 2. An electric drive bridge body, a variable-frequency motor, a fixing plate and a sensor are provided. By connecting a variable-frequency motor to the outside of the electric drive bridge body, the variable-frequency motor can provide power for the test of the electric drive bridge body, and a fixing plate is installed outside the variable-frequency motor for support. At the same time, a sensor is installed outside the moving block. When the electric drive bridge body is started, the sensor can monitor it, and the test data can be transmitted to the computer terminal through sensing technology for people to observe;

[0019] 3. A sliding block, a connecting rod, a fixed rod and a rotating rod are provided. By symmetrically installing fixed rods inside the support table before and after, a sliding block is slidably connected to the left side of the outside of the fixed rod. The sliding block is arranged below the left side of the moving block. At the same time, a connecting rod is arranged inside the sliding block for connection, and a rotating rod is connected to the right side of the outside of the connecting rod. The right side of the rotating rod is rotatably connected to the connecting block. That is, by turning on the electric telescopic rod installed below the connecting block, the electric telescopic rod can drive the connecting block to move downward. At this time, the rotating rod connected to the connecting block will rotate, and it will pull the sliding block to slide outside the fixed rod, and the distance between the two moving blocks can be adjusted, so that the limiting mechanism at the rear side above the moving block can clamp and fix electric drive bridge bodies of different lengths;

[0020] 4. A mobile frame, a support rod, a fixed block, and a support frame are provided. The mobile frames are symmetrically installed on the left and right sides below the support table. The mobile frames are arranged inside the support frame. At the same time, a support rod is arranged inside the mobile frame for connection. Secondly, a fixed block is installed below the middle of the support rod, and an electric telescopic rod is connected below the fixed block. That is, when the electric telescopic rod is turned on, the electric telescopic rod will push the fixed block to move up and down, so that the mobile frame can slide up and down inside the support frame, thereby adjusting the height of the entire device to make it suitable for operators of different heights.

[0021] 5. A support frame is provided. By arranging a support frame outside the mobile frame, the support frame is directly placed on the ground, and the support frame is made of rubber material, which can reduce the vibration generated during the operation of the entire device. Description of the Drawings

[0022] Figure 1 Schematic perspective view of the structure of the present utility model;

[0023] Figure 2 Schematic perspective view of the connection of the limit plate, rack and gear of the present utility model;

[0024] Figure 3 Schematic perspective view of the connection of the mobile frame, support rod and fixed block of the present utility model;

[0025] Figure 4 Schematic perspective view of the connection of the electric drive axle body, fixed plate and electric telescopic rod of the present utility model;

[0026] Figure 5 Schematic perspective view of the connection of the support table, moving block and limit groove of the present utility model;

[0027] Figure 6 Schematic perspective view of the connection of the sliding block, connecting rod and fixed rod of the present utility model.

[0028] In the figure: 1, support table; 2, moving block; 3, electric drive axle body; 4, support plate; 5, limit plate; 6, rack; 7, gear; 8, limit groove; 9, variable frequency motor; 10, fixed plate; 11, electric telescopic rod; 12, sensor; 13, sliding block; 14, connecting rod; 15, fixed rod; 16, rotating rod; 17, connecting block; 18, mobile frame; 19, support rod; 20, fixed block; 21, support frame; 22, motor body. Detailed Implementation Manner

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. 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.

[0030] Please refer to Figures 1 - 6 , the present utility model provides a technical solution:

[0031] Embodiment 1: To solve the problems existing in the prior art, this embodiment adopts the following technical solutions. An integrated electric drive axle test device for engineering vehicles is provided with a support platform 1; a limiting mechanism is arranged at the upper rear side of the moving block 2, which can limit the position of the electric drive axle body 3 to prevent the position deviation during the test of the electric drive axle body 3; a length adjustment mechanism is arranged at the lower left side of the moving block 2, which can adjust the position of the moving block 2 on the left side above the support platform 1, so as to adjust the distance between the moving blocks 2 arranged on the left and right sides of the support platform 1, and thus can clamp and limit electric drive axle bodies 3 of different sizes; a height adjustment mechanism is arranged under the support platform 1, which can adjust the height of the whole device to be suitable for operators of different heights. First, turn on the electric telescopic rod 11 connected to the lower part of the fixed block 20, so that the output end of the electric telescopic rod 11 can push the fixed block 20 upward. When the fixed block 20 moves, the connected support rod 19 will drive the moving frame 18 to slide upward inside the support frame 21. Since the support platform 1 is fixedly connected above the moving frame 18, the height of the whole device can be adjusted, that is, the operator can adjust the height of the device according to his own height. After the height of the device is adjusted, then turn on the electric telescopic rod 11 connected to the lower part of the connecting block 17. The electric telescopic rod 11 can pull the connecting block 17 downward. Since the rotating rod 16 is rotatably connected above the connecting block 17, and the left side of the rotating rod 16 is connected to the connecting rod 14, the connecting rod 14 is arranged and connected to the inner side of the sliding block 13, and the sliding block 13 is installed at the lower left side of the moving block 2 and is located outside the fixed rod 15. That is, when the connecting block 17 rotates, it can pull the sliding block 13 to move to the right side outside the fixed rod 15, and the distance between the moving blocks 2 can be adjusted according to the size and length of the electric drive axle body 3. After adjustment, place the electric drive axle body 3 above the moving blocks 2, align the right side of the electric drive axle body 3 with the variable frequency motor 9 and connect it to the variable frequency motor 9 on the right side. The outside of the variable frequency motor 9 is provided with a fixing plate 10 for fixed support. At this time, turn on the motor body 22 to make the gear 7 rotate. The rotation of the gear 7 will make the engaged rack 6 move downward. Since the limiting plate 5 is fixedly installed below the rack 6, and the rear side of the limiting plate 5 is located in the limiting groove 8 opened inside the support plate 4, and the support plate 4 is fixedly connected to the moving block 2, that is, the rack 6 can make the limiting plate 5 move downward inside the limiting groove 8 until it is in close contact with the electric drive axle body 3, so as to fix the position of the electric drive axle body 3. At this time, turn on the electric telescopic rod 11 connected to the outside of the variable frequency motor 9, so that the output end of the electric telescopic rod 11 can push the variable frequency motor 9 to move and connect it to the electric drive axle body 3. Then turn on the variable frequency motor 9 to start and run the electric drive axle body 3 to test the electric drive axle body 3. Secondly, sensors 12 are installed on both the left and right sides outside the moving block 2. The sensors 12 can transmit the test data of the electric drive axle body 3 to the computer terminal through sensing technology for employees to observe.

[0032] In the existing test device, during the test of the electric drive bridge body 3, due to the drive of the motor, vibrations will occur, which will cause the position of the electric drive bridge body 3 to shift, thus affecting the test results. Therefore, in this embodiment, the following technical solutions are adopted, as Figure 3 , Figure 4 and Figure 5 shown, the limiting mechanism includes a support plate 4 arranged at the rear side above the moving block 2. When the motor body 22 is turned on, the gear 7 rotates. When the gear 7 rotates, the rack 6 engaged and connected at the front side moves up and down. At the same time, a limiting plate 5 is installed below the rack 6, and the rear side of the limiting plate 5 is located in the limiting groove 8 opened inside the support plate 4. That is, when the rack 6 moves downward, it will push the limiting plate 5 to move downward inside the limiting groove 8, and it can move to closely fit the electric drive bridge body 3, and the position of the electric drive bridge body 3 can be limited.

[0033] Embodiment 2: In the existing test device, the sizes of the electric drive bridge bodies 3 used by vehicles are different. Generally, the test device can only test one size of the electric drive bridge body 3, lacking practicality. Therefore, in this embodiment, the following technical solutions are adopted, as Figure 3 , Figure 4 and Figure 6 shown, the length adjustment mechanism includes fixed rods 15 symmetrically installed inside the support table 1 in the front and rear. The left side of the outer side of the fixed rod 15 is slidably connected with a sliding block 13. The sliding block 13 is arranged below the left side of the moving block 2. At the same time, a connecting rod 14 is arranged inside the sliding block 13 for connection, and the right side of the outer side of the connecting rod 14 is connected with a rotating rod 16. The right side of the rotating rod 16 is rotatably connected with a connecting block 17. That is, when the electric telescopic rod 11 installed below the connecting block 17 is turned on, the electric telescopic rod 11 can drive the connecting block 17 to move downward. At this time, the rotating rod 16 connected to the connecting block 17 will rotate, and it will pull the sliding block 13 to slide outside the fixed rod 15, and the distance between the two moving blocks 2 can be adjusted, so that the limiting mechanism at the rear side above the moving block 2 can clamp and fix electric drive bridge bodies 3 of different lengths.

[0034] Embodiment 3: In the existing test device, the test bench supports the electric drive bridge body 3. The heights of each test operator are different. Generally, the test bench cannot be adjusted in height and cannot be applied to operators of different heights for operation. Therefore, in this embodiment, the following technical solutions are adopted, as Figure 1 , Figure 3 and Figure 6As shown in the figure, the height adjustment mechanism includes moving frames 18 arranged on the left and right sides below the support table 1. The moving frames 18 are arranged inside the support frames 21. At the same time, support rods 19 are arranged inside the moving frames 18 for connection. Secondly, a fixed block 20 is installed below the middle of the support rod 19, and an electric telescopic rod 11 is connected below the fixed block 20. That is, when the electric telescopic rod 11 is turned on, the electric telescopic rod 11 will push the fixed block 20 to move up and down, so that the moving frame 18 can slide up and down inside the support frame 21, thereby adjusting the height of the entire device to make it suitable for operators of different heights.

[0035] The content not described in detail in this specification belongs to the prior art well-known to those skilled in the art. The standard parts used in this utility model can all be purchased from the market. The special-shaped parts can be customized according to the description in the specification and the drawings. The specific connection methods of each part all adopt conventional means such as bolts, rivets, and welding that are mature in the prior art. The machines, parts, and equipment all adopt conventional models in the prior art. Coupled with the circuit connection adopting the conventional connection method in the prior art, it will not be elaborated here.

[0036] Although the present utility model has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. An integrated electric drive axle test device for engineering vehicles, comprising: A support platform (1), with moving blocks (2) symmetrically installed on the left and right above the support platform (1); Characterized in that it further comprises: Limit mechanisms are arranged on the left and right sides above the moving block (2). The limit mechanisms include a support plate (4), a limit plate (5), a rack (6), a gear (7) and a limit groove (8). A support plate (4) is fixedly installed at the rear side above the moving block (2), and a limit groove (8) is opened inside the support plate (4). A limit plate (5) is slidably installed on the front side inside the limit groove (8), and a rack (6) is fixedly installed above the limit plate (5); A length adjustment mechanism is arranged below the left side of the moving block (2). The length adjustment mechanism includes an electric telescopic rod (11), a sliding block (13), a connecting rod (14), a fixed rod (15), a rotating rod (16) and a connecting block (17). A sliding block (13) is installed below the left side of the moving block (2), and a connecting rod (14) is arranged inside the sliding block (13). The right side of the connecting rod (14) is connected to a rotating rod (16), and the lower right side of the rotating rod (16) is rotatably connected to a connecting block (17). An electric telescopic rod (11) is installed below the connecting block (17).

2. The integrated electric drive bridge test bench device for construction vehicles according to claim 1, wherein: An electric drive axle body (3) is placed above the moving block (2), a limit plate (5) is arranged above the electric drive axle body (3), and sensors (12) are installed on the left and right sides outside the moving block (2).

3. The integrated electric drive bridge test rig for construction vehicles according to claim 1, characterized in that: The rear side of the rack (6) is meshed with a gear (7), and the outer end of the gear (7) is connected to a motor body (22).

4. The integrated electric drive bridge test bench device for engineering vehicles according to claim 2, characterized in that: The outer end of the electric drive axle body (3) is connected to a variable frequency motor (9). The left side of the variable frequency motor (9) is fixedly connected to an electric telescopic rod (11). A fixing plate (10) is fixedly installed on the outer side of the electric telescopic rod (11), and the fixing plate (10) is fixedly connected to the support platform (1).

5. An integrated electric drive bridge test rig for construction vehicles according to claim 1, characterized in that: The sliding block (13) is slidably installed on the outer side of the fixed rod (15), and the fixed rods (15) are symmetrically installed in the middle of the support platform (1) in the front and rear directions.

6. An integrated electric drive axle test device for engineering vehicles according to claim 5, characterized in that: Moving frames (18) are symmetrically and fixedly installed on the left and right below the support platform (1). The outer sides of the moving frames (18) are slidably connected to a support frame (21), and the support frame (21) is directly placed on the ground.

7. An integrated electric drive test bench for an engineering vehicle according to claim 6, characterized in that: Support rods (19) are installed inside the moving frames (18). A fixed block (20) is arranged below the middle of the support rods (19), and the lower side of the fixed block (20) is fixedly connected to an electric telescopic rod (11).

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