Detachable test bench

Abstract

The utility model relates to a detachable test bench, which comprises a bottom plate, a first adjusting device is arranged outside the bottom plate, a telescopic rod is fixedly mounted at the top of the bottom plate, a top plate is fixedly mounted at the top of the telescopic rod, a sleeve is arranged at the bottom of the top plate, and a spring shock absorber is fixedly mounted at the bottom of the sleeve. According to the detachable test bed, the telescopic rod is opened to drive the top plate to move downwards, meanwhile, the sliding rod can move in the sleeve, when the sliding rod descends to the lowest position, the spring shock absorber can absorb generated shock force, then the bolts are taken down, and the eddy current brake and the torque measuring instrument can be taken down; for a motor to be tested, an eddy current brake and a torque measuring instrument of corresponding models are rotated, then the eddy current brake can be fixed on the moving seat through a bolt, and then the telescopic rod is controlled to drive the top plate to rise upwards, so that the aims of being convenient to disassemble and adjusting the height of the device according to the height of a tester are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of automobile motor testing, in particular to a detachable test bench. Background Art

[0002] Automobile motor usually refers to automobile electric motor, which is a device that converts electrical energy into mechanical energy and is used to drive various components or systems of the car. During the production process of automobile motor, its speed and torque need to be tested to ensure the performance, durability and reliability of the motor. It usually needs to be tested on a test bench.

[0003] However, the structure of the existing test bench is fixed. When the motor needs to be tested, the motor needs to be installed on the fixed plate. However, the motor is heavy and it is not convenient to install it if the height of the test bench is high. The practicality needs to be improved, so a detachable test bench is proposed. Utility Model Content

[0004] In view of the deficiencies in the prior art, the utility model provides a detachable test bench having the advantages of adjusting the height of the test bench and facilitating the testing of motors, thereby solving the problem that the existing test bench is a fixed structure and is not convenient for testing motors.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a detachable test bench, comprising a bottom plate, a first adjustment device is arranged outside the bottom plate, and a second adjustment device is arranged outside the bottom plate;

[0006] A telescopic rod is fixedly installed on the top of the bottom plate, a top plate is fixedly installed on the top of the telescopic rod, a sleeve is arranged at the bottom of the top plate, a spring shock absorber is fixedly installed at the bottom of the sleeve, an electric slide rail is fixedly installed inside the top plate, a moving seat is slidably connected to the outer surface of the electric slide rail, an eddy current brake is movably connected to the top of the moving seat, and a torque measuring instrument is arranged at the output end of the eddy current brake;

[0007] A driving motor is fixedly installed inside the bottom plate, a bevel gear rod is rotatably connected inside the bottom plate, an equipment box is fixedly installed on the top of the bottom plate, a threaded conical rod is rotatably connected to the inner bottom wall of the equipment box, a lifting plate is threadedly connected to the outer surface of the threaded conical rod, a cross plate is fixedly installed on the top of the lifting plate, a bidirectional threaded rod is rotatably connected inside the cross plate, and a fixed disk is fixedly installed on the top of the cross plate.

[0008] Furthermore, the number of the telescopic rods is two, the number of the sleeves and the number of the spring shock absorbers are four, the bottoms of the four spring shock absorbers are fixedly connected to the top of the bottom plate, the interiors of the four sleeves are movably connected with sliding rods, and the tops of the four sliding rods are fixedly connected to the bottom of the top plate.

[0009] Furthermore, there are two electric slide rails, the outer surfaces of the two electric slide rails are movably connected to the inside of the moving seat, the external thread of the eddy current brake is connected with a bolt, and the inside of the moving seat is provided with a threaded hole compatible with the bolt.

[0010] Furthermore, the left side of the bevel gear rod passes through the inner left wall of the base plate and is fixedly connected to the output end of the drive motor. There are two threaded conical rods, and the bottoms of the two threaded conical rods pass through the inner bottom wall of the equipment box and the top of the base plate and engage with the outer surface of the bevel gear rod.

[0011] Furthermore, four auxiliary rods are fixedly installed inside the equipment box, and the four auxiliary rods are respectively located on the front and rear sides of the two threaded conical rods. There are two lifting plates, and the interiors of the two lifting plates are respectively slidably connected to the outer surfaces of the four auxiliary rods.

[0012] Furthermore, the tops of the two lifting plates penetrate the inner top wall of the equipment box and are fixedly connected to the bottom of the horizontal plate, and a through hole is opened inside the fixed plate.

[0013] Furthermore, a limit rod is fixedly installed inside the cross plate, the back of the bidirectional threaded rod passes through the inner rear wall of the cross plate, and the outer surface of the bidirectional threaded rod is threadedly connected with two clamps, and the interior of the two clamps is slidably connected to the outside of the limit rod.

[0014] Beneficial Effects

[0015] Compared with the prior art, the technical solution of this application has the following beneficial effects:

[0016] 1. For the detachable test bench, open the telescopic rod to drive the top plate to move downward. During the movement of the top plate, the slide bar will move in the sleeve. When it drops to the lowest point, the spring shock absorber will absorb the vibration force generated. Then remove the bolts to remove the eddy current brake and torque meter. Rotate the eddy current brake and torque meter of the corresponding model for the motor under test, and then fix the eddy current brake on the moving seat with bolts. Then control the telescopic rod to drive the top plate to rise upward, so as to achieve the purpose of easy disassembly and the ability to adjust the height of the device according to the height of the test personnel.

[0017] 2. The detachable test bench turns on the driving motor to drive the bevel gear rod to rotate in the opposite direction, and the reverse rotation of the bevel gear rod drives the threaded conical rod to rotate in the opposite direction, thereby driving the cross plate to the lowest point through the lifting plate, and then placing the motor to be tested on the cross plate, and passing its output end through the fixed plate, and then rotating the bidirectional threaded rod to drive the clamping plate to limit and fix the motor along the limit rod, and then driving the motor to rotate forward to control the cross plate to drive the motor to rise to a suitable height, and cooperate with the eddy current brake and torque meter to carry out the test, so as to achieve the purpose of facilitating the test of the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of a partial three-dimensional structure of the utility model;

[0019] Figure 2 This is a front sectional structural schematic diagram of the utility model;

[0020] Figure 3 It is a partial side cross-sectional structural schematic diagram of the utility model;

[0021] Figure 4 For this utility model Figure 2 Enlarged structural diagram at A in the middle.

[0022] In the figure: 1, bottom plate; 2, first adjusting device; 201, telescopic rod; 202, top plate; 203, sleeve; 204, spring shock absorber; 205, electric slide rail; 206, moving seat; 207, eddy current brake; 208, torque meter; 3, second adjusting device; 301, drive motor; 302, bevel gear rod; 303, equipment box; 304, threaded tapered rod; 305, lifting plate; 306, cross plate; 307, bidirectional threaded rod; 308, fixed plate. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-4 , a detachable test bench comprises a bottom plate 1, a first adjusting device 2 is arranged outside the bottom plate 1, and a second adjusting device 3 is arranged outside the bottom plate 1;

[0025] A telescopic rod 201 is fixedly installed on the top of the bottom plate 1, a top plate 202 is fixedly installed on the top of the telescopic rod 201, a sleeve 203 is arranged at the bottom of the top plate 202, a spring shock absorber 204 is fixedly installed at the bottom of the sleeve 203, an electric slide rail 205 is fixedly installed inside the top plate 202, a moving seat 206 is slidably connected to the outer surface of the electric slide rail 205, an eddy current brake 207 is movably connected to the top of the moving seat 206, and a torque measuring instrument 208 is arranged at the output end of the eddy current brake 207;

[0026] A driving motor 301 is fixedly installed inside the base plate 1, a bevel gear rod 302 is rotatably connected inside the base plate 1, an equipment box 303 is fixedly installed on the top of the base plate 1, a threaded conical rod 304 is rotatably connected to the inner bottom wall of the equipment box 303, a lifting plate 305 is threadedly connected to the outer surface of the threaded conical rod 304, a cross plate 306 is fixedly installed on the top of the lifting plate 305, a bidirectional threaded rod 307 is rotatably connected inside the cross plate 306, and a fixed disk 308 is fixedly installed on the top of the cross plate 306.

[0027] Specifically, Figure 2 As shown, when the top plate 202 and the cross plate 306 are adjusted to the same horizontal height and the motor is fixed by the clamp, the electric slide rail 205 is opened to drive the eddy current brake 207 and the torque meter 208 to move to the right, so that the right side of the torque meter 208 is connected to the output end of the motor, thereby testing the rotation speed and torque of the motor through the eddy current brake 207 and the torque meter 208.

[0028] Specifically, Figure 2 As shown, the torque measuring instrument 208 usually uses a strain gauge to measure the torque. When the torque acts on the measuring instrument, it will cause changes in physical quantities such as internal resistance or inductance, which will then be converted into electrical signals for output. Through calibration and signal processing, the electrical signals can be converted into intuitive torque values ​​for display and recording. The eddy current brake 207 is a non-contact electromagnetic brake based on the eddy current effect. Its working principle is to use the magnetic induction principle to generate eddy currents by induction of electromagnetic fields, so that mechanical energy is converted into thermal energy and a braking force is generated on a rotating object. When current is transmitted to the coil of the eddy current brake 207, a strong magnetic field is formed. This magnetic field will pass through the eddy current brake disc (usually made of metal or non-conductive material), generating eddy currents in the brake disc. The eddy current current is opposite to the force of the magnetic field, thereby generating a braking torque. The magnitude of the braking torque is proportional to the magnitude of the current in the coil. Therefore, the magnitude of the braking torque of the eddy current brake 207 can be controlled by adjusting the magnitude of the current in the coil.

[0029] Specifically, Figure 2As shown, when the output end of the motor is connected to the torque meter 208, the motor is turned on, and a braking torque is applied to the automobile motor through the eddy current brake 207 to simulate the load conditions that the automobile may encounter during actual driving. The torque meter 208 measures and records the torque output of the motor under the braking torque in real time. By adjusting the braking torque of the eddy current brake 207, different load conditions can be simulated, thereby comprehensively evaluating the torque output performance of the automobile motor.

[0030] Specifically, Figure 2 As shown, the drive motor 301 is a forward and reverse motor, which refers to a motor that can realize forward and reverse operation. The working principle of the forward and reverse motor is based on changing the phase sequence of the motor power supply to achieve a change in the rotation direction. In a three-phase asynchronous motor, the rotation direction of the motor can be changed by swapping any two phases. This operation is called commutation, which allows the motor to run in different directions as needed.

[0031] When implementing, follow these steps:

[0032] 1) First, the top plate 202 is lowered to the lowest point through the telescopic rod 201, and the vibration force generated by the lowering is reduced through the spring shock absorber 204;

[0033] 2) Then, the eddy current brake 207 and the torque measuring instrument 208 are fixed to the electric slide rail 205 by bolts, and then the top plate 202 is raised to a suitable height by the telescopic rod 201;

[0034] 3) Then, the driving motor 301 controls the bevel gear rod 302 to drive the threaded conical rod 304 to reverse, and the horizontal plate 306 is moved to the lowest position, and then the motor is placed on the horizontal plate 306;

[0035] 4) Finally, the bidirectional threaded rod 307 is rotated to cooperate with the clamping plate to fix the motor, and then the horizontal plate 306 is raised to a suitable height by driving the motor 301 to rotate forward, and then the test is carried out through the eddy current brake 207 and the torque meter 208.

[0036] In summary, the detachable test bench opens the telescopic rod 201 to drive the top plate 202 to move downward. During the movement of the top plate 202, the slide bar will move in the sleeve 203. When it drops to the lowest point, the spring shock absorber 204 will absorb the vibration force generated. Then, the eddy current brake 207 and the torque meter 208 can be removed by removing the bolts. The eddy current brake 207 and the torque meter 208 of the corresponding model are rotated for the motor to be tested. Then, the eddy current brake 207 can be fixed on the moving seat 206 by bolts, and then the telescopic rod 201 is controlled to drive the top plate 202 to rise upward, so as to facilitate disassembly and can be adjusted according to the height of the test personnel. For the purpose of adjusting the height of the device, turn on the drive motor 301 to drive the bevel gear rod 302 to rotate in the opposite direction, and the reverse rotation of the bevel gear rod 302 drives the threaded conical rod 304 to rotate in the opposite direction, thereby driving the cross plate 306 to the lowest point through the lifting plate 305, and then place the motor to be tested on the cross plate 306, and pass its output end through the fixed plate 308, and then rotate the bidirectional threaded rod 307 to drive the clamping plate to limit and fix the motor along the limit rod, and then drive the motor 301 to rotate forward, control the cross plate 306 to drive the motor to rise to a suitable height, and cooperate with the eddy current brake 207 and the torque meter 208 for testing, so as to achieve the purpose of facilitating the testing of the motor.

[0037] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0038] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detachable test bench, comprising a bottom plate (1), characterized in that: A first adjustment device (2) is arranged outside the bottom plate (1), and a second adjustment device (3) is arranged outside the bottom plate (1); A telescopic rod (201) is fixedly mounted on the top of the bottom plate (1), a top plate (202) is fixedly mounted on the top of the telescopic rod (201), a sleeve (203) is arranged at the bottom of the top plate (202), a spring shock absorber (204) is fixedly mounted at the bottom of the sleeve (203), an electric slide rail (205) is fixedly mounted inside the top plate (202), a moving seat (206) is slidably connected to the outer surface of the electric slide rail (205), an eddy current brake (207) is movably connected to the top of the moving seat (206), and a torque measuring instrument (208) is arranged at the output end of the eddy current brake (207); A driving motor (301) is fixedly installed inside the bottom plate (1), a bevel gear rod (302) is rotatably connected inside the bottom plate (1), an equipment box (303) is fixedly installed on the top of the bottom plate (1), a threaded conical rod (304) is rotatably connected to the inner bottom wall of the equipment box (303), a lifting plate (305) is threadedly connected to the outer surface of the threaded conical rod (304), a transverse plate (306) is fixedly installed on the top of the lifting plate (305), a bidirectional threaded rod (307) is rotatably connected inside the transverse plate (306), and a fixing plate (308) is fixedly installed on the top of the transverse plate (306).

2. A detachable test bench according to claim 1, characterized in that: The number of the telescopic rods (201) is two, the number of the sleeves (203) and the number of the spring shock absorbers (204) are four, the bottoms of the four spring shock absorbers (204) are fixedly connected to the top of the bottom plate (1), the interiors of the four sleeves (203) are movably connected to sliding rods, and the tops of the four sliding rods are fixedly connected to the bottom of the top plate (202).

3. A detachable test bench according to claim 1, characterized in that: There are two electric slide rails (205), the outer surfaces of the two electric slide rails (205) are movably connected to the inside of the moving seat (206), the external thread of the eddy current brake (207) is connected to a bolt, and the inside of the moving seat (206) is provided with a threaded hole that matches the bolt.

4. A detachable test bench according to claim 1, characterized in that: The left side of the bevel gear rod (302) passes through the inner left wall of the bottom plate (1) and is fixedly connected to the output end of the drive motor (301). The number of the threaded conical rods (304) is two, and the bottoms of the two threaded conical rods (304) both pass through the inner bottom wall of the equipment box (303) and the top of the bottom plate (1), and mesh with the outer surface of the bevel gear rod (302).

5. The detachable test bench according to claim 1, characterized in that: Four auxiliary rods are fixedly installed inside the equipment box (303), and the four auxiliary rods are respectively located on the front and rear sides of the two threaded tapered rods (304). There are two lifting plates (305), and the insides of the two lifting plates (305) are respectively slidably connected to the outer surfaces of the four auxiliary rods.

6. The detachable test bench according to claim 1, characterized in that: The tops of the two lifting plates (305) both penetrate the inner top wall of the equipment box (303) and are fixedly connected to the bottom of the horizontal plate (306). A through hole is provided inside the fixed plate (308).

7. The detachable test bench according to claim 1, characterized in that: A limit rod is fixedly installed inside the transverse plate (306); the back side of the bidirectional threaded rod (307) passes through the inner rear wall of the transverse plate (306); two clamping plates are threadedly connected to the outer surface of the bidirectional threaded rod (307); the inside of the two clamping plates are slidably connected to the outside of the limit rod.

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