New energy high-speed rotor efficient detection device

Abstract

The utility model discloses a new energy high-speed rotor high-efficiency detection device, which belongs to the technical field of motor test equipment, and comprises a test bench end cover, the bottom surface of the test bench end cover is respectively provided with a lifting assembly and a clamping assembly, the execution end of the lifting assembly is provided with a support frame assembly, and the support frame assembly is provided with a clamping assembly. And the clamping assembly and the support frame assembly are respectively used for positioning the rotor. According to the utility model, the copper sleeve is designed on the support frame assembly and is used for protecting the rotor and the clamping assembly to coaxially move to the greatest extent when the concentricity of the rotor and the clamping assembly deviates, so that the personal safety of testers is protected and the damage of test equipment is avoided under the condition that the rotor is prevented from being broken; the high-strength force of the pressurizing laminated spring can fully ensure the clamping degree of the rotor in high-speed movement, so that the rotor cannot be loosened during movement, and the centering problem is solved by designing the lifting assembly capable of lifting and centering the center of the lifting assembly and the center of the clamping assembly.

Description

Technical Field

[0001] The utility model discloses a new energy high-speed rotor high-efficiency detection device, belonging to the technical field of motor testing equipment. Background Art

[0002] At present, under the background of the rapid development of new energy vehicles, the performance of the motor determines the product strength of new energy vehicles. The rotor is the core component of the motor, and the performance of the rotor determines the performance of the motor. How to improve the performance of the motor has always been the focus of technology research and development of automobile companies. With the continuous improvement of user demand, the technology of new energy vehicles has become more mature, especially the motors of new energy vehicles have been updated and iterated. How to quickly test the motor performance of new energy vehicles in the laboratory is of great significance to the upgrade and iteration of products.

[0003] At present, the motor rotor is usually installed and fixed manually in the R&D laboratory. The use of manpower to install the test sample not only wastes time and delays the R&D efficiency, but also has the problems of low installation accuracy, repeated installation, and repeated large amounts of ineffective work. Since the rotor is tested at high speed, when the test starts, the rotor speed gradually increases and the centrifugal force of the rotor becomes stronger and stronger. When the centrifugal force of the rotor is too large, the rotor will break. In the existing technology, the connection between the rotor and the test bench is a pain point. The conventional connection is to drill holes in the test sample and connect it to the test bench through bolts through the holes. However, the rotor of the new energy motor continues to move at high speed during operation. Damaging its structure will cause the hardness and stiffness of the rotor to decrease, and the test data is not accurate enough. Therefore, it is very necessary to create a utility model for the defects in the prior art. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that the rotor of the new energy motor continues to move at high speed during operation in the connection device between the rotor and the test bench in the existing R&D laboratory, which damages its structure and leads to reduced hardness and stiffness performance of the rotor, and the test data is not accurate enough, and proposes a new energy high-speed rotor efficient detection device.

[0005] The problem to be solved by the utility model is achieved by the following technical solutions:

[0006] A new energy high-speed rotor high-efficiency detection device comprises a test bench end cover, wherein a lifting assembly and a clamping assembly are respectively arranged on the bottom surface of the test bench end cover, a support frame assembly is arranged on the execution end of the lifting assembly, and the clamping assembly and the support frame assembly are respectively used for rotor positioning.

[0007] Preferably, the clamping assembly includes a clamping flange rotatably mounted on an end cover of the test bench, the clamping flange is connected to a booster spring for providing a clamping force to clamp one end of the rotor via a coupling, and the booster spring is connected to an external booster pump.

[0008] Preferably, the lifting assembly includes a column frame with one end fixed to the bottom surface of the end cover of the test bench, and a first screw fixer and a second screw fixer are respectively provided inside the column frame, and screws are rotatably mounted on the first screw fixer and the second screw fixer, respectively, and a motor with a main shaft connected to one end of the screw is also provided inside the column frame, and a slider frame cooperating with the inner side of the column frame is rotatably provided on the screw, and the support frame assembly is arranged on one end of the slider frame passing through the inner side of the column frame.

[0009] Preferably, the support frame assembly includes an L-bracket on the outer side of a vertical plate fixed to the slider frame that passes through the inner end of the column frame, a support flange is rotatably provided on the horizontal plate of the L-bracket, a copper sleeve is rotatably provided on the middle part of the support flange through a bearing, the bearing is enclosed in the support flange by a bearing cover that cooperates with the outer edge of the copper sleeve, and the support flange, bearing, clamping flange, coupling and booster spring are coaxially arranged.

[0010] The utility model has the following beneficial effects compared with the prior art:

[0011] (1) The utility model releases the booster spring through the booster pump. The high-strength force of the booster spring can fully ensure the clamping degree of the rotor at high speed, so that it will not loosen during movement. By designing a lifting assembly that can be raised and lowered, the center of the lifting assembly and the center of the clamping assembly are designed to be co-centered, thereby solving the centering problem;

[0012] (2) The utility model simultaneously installs a mark position sensor at the center of the clamping device. When the motor is in the process of rising, when the mark position sensor of the clamping assembly senses the mark position of the sample to be tested, the motor automatically stops and the bracket is automatically locked and fixed;

[0013] (3) The utility model designs a copper sleeve on the support frame assembly to protect the rotor and the clamping assembly from concentricity deviation, so that the rotor can move coaxially to the maximum extent, thereby protecting the personal safety of the test personnel and avoiding damage to the test equipment while preventing the rotor from breaking. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is an isometric view of a new energy high-speed rotor high-efficiency detection device of the utility model.

[0015] Figure 2 It is an isometric view of a new energy high-speed rotor high-efficiency detection device of the utility model.

[0016] Figure 3 It is a partial structural diagram of a new energy high-speed rotor high-efficiency detection device of the utility model.

[0017] Among them, 1-test bench end cover, 2-clamping assembly, 3-lifting assembly, 4-rotor, 5-support frame assembly, 21-clamping flange, 22-coupling, 23-boosting stack spring, 31-slider frame, 32-column frame, 33-second screw holder, 34-screw, 35-first screw holder, 36-motor, 51-L bracket, 52-support flange, 53-copper sleeve, 54-bearing, 55-bearing cover. DETAILED DESCRIPTION

[0018] The following is based on the attached Figure 1-3 The utility model is further described as follows:

[0019] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of 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.

[0020] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0022] like Figure 1As shown, the first embodiment of the utility model provides a new energy high-speed rotor high-efficiency detection device based on the prior art, including a test bench end cover 1, a lifting assembly 3 and a clamping assembly 2 are respectively installed on the bottom surface of the test bench end cover 1, a support frame assembly 5 is installed on the execution end of the lifting assembly 3, the clamping assembly 2 and the support frame assembly 5 are respectively used for positioning the rotor 4, and the specific structures of the above-mentioned assemblies and the connection relationship between them will be introduced in detail below.

[0023] like Figure 2 As shown, the clamping assembly 2 includes a clamping flange 21 rotatably mounted on the test bench end cover 1. The clamping flange 21 is connected to a booster spring 23 for providing a clamping force to clamp one end of the rotor 4 through a coupling 22. The booster spring 23 is connected to an external booster pump, and a mark position sensor is arranged inside the booster spring 23.

[0024] The end cover 1 of the test bench is used to bear the weight of the test sample and the connector. The lifting assembly 3 includes a column frame 32 with one end fixed to the bottom surface of the end cover 1 of the test bench by bolts. The first screw holder 35 and the second screw holder 33 are respectively installed inside the column frame 32. The first screw holder 35 and the second screw holder 33 are respectively rotatably equipped with screws 34. The column frame 32 is also installed with a motor 36 whose main shaft is connected to one end of the screw 34. The motor 36 adopts a stepping motor known to those skilled in the art, so it is not described in detail. The slider frame 31 that cooperates with the inner side of the column frame 32 is rotatably installed on the screw 34, and the support frame assembly 5 is installed on the slider frame 31 passing through the inner side of the column frame 32.

[0025] like Figure 3 As shown, the support frame assembly 5 includes an L bracket 51 on the outer side of a vertical plate fixed to the slider frame 31 and passing through the inner end of the column frame 32. A support flange 52 is rotatably installed on the horizontal plate of the L bracket 51. A copper sleeve 53 is rotatably installed in the middle of the support flange 52 through a bearing 54. The bearing 54 cooperates with the outer edge of the copper sleeve 53 through a bearing cover 55 to enclose it in the support flange 52. The support flange 52, bearing 54, clamping flange 21, coupling 22 and booster spring 23 are coaxially arranged.

[0026] The specific working process is as follows:

[0027] When the test bench is ready to work, the booster spring 23 is released through the external booster pump, and the rotor 4 of the sample to be tested is installed on the copper sleeve 53. At the same time, the motor 36 is started. The motor 36 raises the support frame assembly 5 to a certain height through the screw 34. When the upper end mark position of the rotor 4 is sensed by the support frame assembly 5 in the booster spring 23, the motor 36 stops lifting and lowering, the bracket 6 stops, the booster pump stops working, and the booster spring 23 provides a clamping force to clamp the rotor 4. When the test bench is tested, the rotor 4 moves at a high speed. Due to the property that the mechanical parts have a natural frequency, the rotor 4 will vibrate and the centrifugal force will increase when the natural frequency of the mechanical parts resonates during the speed increase process. At this time, the lower end of the rotor 4 is installed in the copper sleeve 53 on the support frame assembly 5. As the centrifugal force of the rotor 4 increases, the copper sleeve 53 will be driven by the rotor 4, and the copper sleeve 53 moves at a high speed in the bearing 54, thereby ensuring that the rotor 4 is consistent with the concentricity of the booster spring 23 during the speed increase process, and further protecting the rotor 4 from being broken.

[0028] Although the embodiments of the present invention have been disclosed above, they are not limited to the applications listed in the specification and the embodiments. It can be fully applied to various fields suitable for the present invention. For those familiar with the art, additional modifications can be easily realized. Therefore, without departing from the general concept defined by the claims and the scope of equivalents, the present invention is not limited to the specific details and the illustrations shown and described here.

Claims

1. A new energy high-speed rotor high-efficiency detection device, characterized in that: The test bench comprises an end cover (1), wherein a lifting assembly (3) and a clamping assembly (2) are respectively arranged on the bottom surface of the end cover (1), a support frame assembly (5) is arranged on the execution end of the lifting assembly (3), and the clamping assembly (2) and the support frame assembly (5) are respectively used for positioning a rotor (4).

2. The high-efficiency detection device for new energy high-speed rotors according to claim 1 is characterized in that: The clamping assembly (2) comprises a clamping flange (21) rotatably arranged on the end cover (1) of the test bench, the clamping flange (21) being connected to a booster spring (23) for providing a clamping force to clamp one end of a rotor (4) via a coupling (22), the booster spring (23) being connected to an external booster pump, and a mark position sensor being arranged inside the booster spring (23).

3. The high-efficiency detection device for new energy high-speed rotors according to claim 2 is characterized in that: The lifting assembly (3) comprises a column frame (32) with one end fixed to the bottom surface of the test bench end cover (1), a first screw fixer (35) and a second screw fixer (33) are respectively arranged inside the column frame (32), and screws (34) are rotatably mounted on the first screw fixer (35) and the second screw fixer (33), respectively, and a motor (36) whose main shaft is connected to one end of the screw (34) is also arranged inside the column frame (32), and a slider frame (31) cooperating with the inner side of the column frame (32) is rotatably arranged on the screw (34), and the support frame assembly (5) is arranged on the inner end of the slider frame (31) passing through the column frame (32).

4. The high-efficiency detection device for new energy high-speed rotors according to claim 3 is characterized in that: The support frame assembly (5) includes an L bracket (51) on the outer side of a vertical plate fixed to the slider frame (31) and passing through the inner end of the column frame (32); a support flange (52) is rotatably provided on the horizontal plate of the L bracket (51); a copper sleeve (53) is rotatably provided in the middle of the support flange (52) through a bearing (54); the bearing (54) is sealed in the support flange (52) by cooperating with the outer edge of the copper sleeve (53) through a bearing cover (55); the support flange (52), the bearing (54), the clamping flange (21), the coupling (22) and the booster spring (23) are coaxially arranged.

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