Motor high and low temperature testing device
By using fine-tuning fixtures and support frames in the motor high and low temperature test device, the torque transmission end is aligned with the motor shaft center, which solves the problem of insufficient synchronous operation accuracy of the shaft center in the prior art and improves the test data accuracy and reliability.
Patent Information
- Application Number
- CN202420642767.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2024-12-27
- Estimated Expiration
- 2034-03-29
AI Technical Summary
In the motor high and low temperature performance test, the installation process of ensuring that the torque transmission end runs synchronously with the motor axis center requires high accuracy, and it is difficult for the prior art to achieve high accuracy axis alignment.
A motor high and low temperature testing device is designed, and a fine-tuning fixture is used to set between the support end and the motor. The height and angle of the torque transmission end are fine-tuned by fine-tuning bolts and height limiting parts, so that it coincides with the transmission shaft and the motor axis. The support frame and casters reduce friction and ensure precise alignment.
It improves the accuracy of the torque transmission end aligning with the motor axis center, reduces test deviations, and improves the accuracy and reliability of the motor test data in high and low temperature environments.
Smart Images
Figure CN222259522U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of motor testing, in particular to a high and low temperature testing device for a motor. Background Art
[0002] Electric vehicles have been gradually promoted due to their clean and pollution-free features and diverse energy sources. As the driving source of electric vehicles, the performance test of the motor is an important step to ensure the performance and safety of the motor.
[0003] During the high and low temperature performance test of the motor, in order to keep the motor and the torque transmission end running synchronously, the torque transmission end needs to be coaxially connected to the motor, that is, to ensure that the axis is on the same axis. This installation process has high requirements for installation accuracy and requires the use of a fine-tuning device to assist in axis alignment. Utility Model Content
[0004] Based on this, it is necessary to provide a motor high and low temperature testing device with fine-tuning alignment function to address the above problems.
[0005] The utility model provides a motor high and low temperature testing device, comprising:
[0006] An environmental chamber having at least one set of transmission holes;
[0007] A mounting end, located on the inner wall of the environmental chamber, for fixing the motor at a position coinciding with the axis of the transmission hole;
[0008] A torque transmission end, arranged relative to the transmission hole and located outside the environmental chamber, has a transmission shaft and is used to provide a simulated load and monitor a torque value;
[0009] A support end, having a support portion and a fine-adjustment fixing member, for supporting the torque transmission end to reach a height arranged relative to the transmission hole, and for fine-adjusting the angle of the torque transmission end;
[0010] Among them, one end of the transmission shaft passes through the transmission hole and is connected to the rotating shaft of the motor through a coupling, and the other end thereof is connected to the torque transmission end through a coupling, and the fine-tuning fixing is installed on the supporting part, and the fine-tuning fixing fine-adjusts the angle of the torque transmission end so that the torque transmission end coincides with the axis of the transmission shaft and the motor.
[0011] In one embodiment, the fine-tuning fixing member includes an adjusting member and a supporting member, wherein the adjusting member is mounted on the supporting portion and is used to fine-tune the height and angle of the supporting member, and the supporting member is mounted on the adjusting member and is used to support and fix the torque transmission end.
[0012] In one embodiment, the adjusting member includes a fine-tuning bolt and a height limiting member, wherein the height limiting member is located on a side of the supporting portion adjacent to the supporting portion, the fine-tuning bolt passes through the supporting portion and the supporting portion and is connected to the bearing of the height limiting member, and is only threadedly connected to the supporting portion, and a limiting portion is provided on the connecting surface between the fine-tuning bolt and the supporting portion, and the limiting portion is used to prevent the fine-tuning bolt from moving up and down relative to the supporting portion.
[0013] In one of the embodiments, the support member includes a base plate and a fastening plate group, the end of the base plate is threadedly connected to the fine-tuning bolt, and the fastening plate group is installed on the base plate and is used to fix the torque transmission end.
[0014] In one embodiment, the support end includes a support frame, the support portion is located at a position of the support frame relative to the transmission hole, and a caster with a locking function is provided at the bottom of the support frame, and the caster is used to reduce the friction of the horizontal displacement of the support frame.
[0015] In one embodiment, the mounting end includes a fastener and a mounting plate, the fastener is mounted on the inner wall of the environmental chamber, and the mounting plate is connected to the inner end of the fastener and is used to fix the motor.
[0016] In one of the embodiments, the mounting plate has a motor limiting hole, and the axis of the motor limiting hole coincides with the axis of the transmission hole, and the mounting plate has a plurality of groups of first fastening holes for fixing the motor.
[0017] In one embodiment, the environmental box has a second fastening hole on the inner wall opposite to the transmission hole;
[0018] The fastener includes a nut tube and a fastening bolt, the nut tube is installed on the mounting plate, the outer diameter of the fastening bolt matches the inner diameter of the fastening hole, and the fastening bolt passes through the fastening hole and is threadedly connected to the nut tube to lock the mounting plate in the environmental box.
[0019] In one of the embodiments, a heat insulating medium is installed on the surface of the environmental box opposite to the rear end of the motor, and the heat insulating medium is used to reduce heat conduction between the motor and the inner wall of the environmental box.
[0020] The above-mentioned motor high and low temperature testing device, based on the traditional technology that can carry the torque transmission end and make the torque transmission end coaxially connected to the motor, adds a fine-tuning fixture at the support end, and sets the fine-tuning fixture between the support part and the motor. The fine-tuning fixture is used to drive the torque transmission end to be fine-tuned in height and angle, so as to improve the accuracy of alignment between the torque transmission end and the motor axis, thereby reducing test deviation and effectively improving the accuracy and reliability of test data under high and low temperature environments of the motor. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0022] Figure 1 This is a schematic diagram of the structure of a high and low temperature test device for a motor according to an embodiment;
[0023] Figure 2 It is an overall cross-sectional view of a motor high and low temperature testing device according to one embodiment;
[0024] Figure 3 for Figure 2 Structural schematic diagram of the middle mounting plate, torque transmission end and support frame;
[0025] Figure 4 for Figure 3 Schematic diagram of the structure of the fine-tuning bolt;
[0026] Figure 5 for Figure 2 Enlarged view of part A in the figure.
[0027] Reference numerals:
[0028] 100, environmental chamber; 101, transmission hole; 103, second fastening hole; 102, heat insulation medium; 200, mounting end; 210, fastener; 212, nut tube; 214, fastening bolt; 220, mounting plate; 221, motor limit hole; 223, first fastening hole; 300, torque transmission end; 310, transmission shaft; 400, support end; 410, support frame; 411, support part; 412, caster; 420, fine-tuning fixing piece; 422, adjusting piece; 426, fine-tuning bolt; 421, limit part; 428, height limit piece; 424, support piece; 423, bottom plate; 425, fastening plate assembly. DETAILED DESCRIPTION
[0029] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment 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.
[0030] It should be noted that when a component is referred to as being "fixed to" or "disposed on" another component, it may be directly on the other component or there may also be a central component. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may be a central component at the same time. The terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in the specification of the utility model are for illustrative purposes only and do not represent the only implementation method.
[0031] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0032] In the present utility model, unless otherwise clearly specified and limited, a first feature being “above” or “below” a second feature may mean that the first feature is directly in contact with the second feature, or the first feature and the second feature are indirectly in contact through an intermediate medium. Moreover, a first feature being “above”, “above” or “above” a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being “below”, “below” or “below” a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0033] Unless otherwise defined, all technical and scientific terms used in the specification of the present utility model have the same meaning as those commonly understood by technicians in the technical field of the present utility model. The terms used in the specification of the present utility model are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "and / or" used in the specification of the present utility model includes any and all combinations of one or more related listed items.
[0034] Combine the following Figure 1-Figure 5 The utility model describes a high and low temperature testing device for a motor.
[0035] like Figure 1 and Figure 2 As shown, in one embodiment, a high and low temperature testing device for a motor includes an environmental chamber 100 , a mounting end 200 , a torque transmission end 300 , and a support end 400 .
[0036] The environmental box 100 has at least one set of transmission holes 101. The environmental box 100 is used to simulate specific high and low temperature environmental conditions for motor testing. The transmission holes 101 provide a connection channel for the torque transmission end 300 to be connected to the motor transmission.
[0037] The mounting end 200 is located on the inner wall of the environmental chamber 100 and is used to fix the motor at a position that coincides with the axis of the transmission hole 101. By fastening the motor to the inner wall of the environmental chamber 100, the motor can be prevented from axial deviation during long-term operation.
[0038] The torque transmission end 300 is arranged relative to the transmission hole 101 and is located outside the environmental chamber 100. It has a transmission shaft 310 for providing simulated load and monitoring torque value. The torque transmission end 300 is connected to the motor through the transmission shaft 310 to transmit torque to the motor to simulate the load conditions that the motor may encounter in actual work and obtain the performance of the motor in a specific high and low temperature environment. The torque transmission end 300 includes a hysteresis brake and a torque sensor.
[0039] The support end 400 has a support portion 411 and a fine-tuning fixture 420, which are used to support the torque transmission end 300 to reach a height relatively set with the transmission hole 101, and to fine-tune the angle of the torque transmission end 300. The fine-tuning fixture 420 is supported by the support portion 411, and the torque transmission end 300 is placed on the fine-tuning fixture 420. The angle of the torque transmission end 300 is fine-tuned by the fine-tuning fixture 420 to ensure that the transmission shaft 310 of the torque transmission end 300 and the motor are located on the same axis, which is convenient for measuring and controlling the torque and load conditions of the motor.
[0040] Among them, one end of the transmission shaft 310 passes through the transmission hole 101 and is connected to the rotating shaft of the motor through a coupling, and the other end thereof is connected to the torque transmission end 300 through a coupling. The fine-tuning fixture 420 is installed on the support part 411. The fine-tuning fixture 420 fine-tunes the angle of the torque transmission end 300 so that the torque transmission end 300 coincides with the transmission shaft 310 and the axis of the motor.
[0041] In order to achieve sealing of the environmental chamber 100, a seal is installed on the inner wall of the transmission hole 101. The seal has a through hole for the transmission shaft 310 to pass through, and the inner diameter of the through hole should be smaller than the transmission shaft 310 to ensure proper contact and pressure between the seal and the transmission shaft 310 to ensure the sealing effect.
[0042] Optionally, the sealing member is a sealing gasket or a sealant or other sealing material having a sealing effect on gas.
[0043] Specifically, when the motor is tested for performance under high and low temperature environments, the motor is fastened to the mounting end 200, and the mounting end 200 is fastened to the inner wall of the environmental box 100, so as to limit the displacement of the motor in the environmental box 100, prevent the motor from shifting its axis during long-term operation, and pass the transmission shaft 310 through the transmission hole 101 and connect it coaxially with the motor through a coupling;
[0044] The torque transmission end 300 is mounted on the fine-tuning fixture 420, and the torque transmission end 300 is connected to the drive shaft 310 through a coupling. Since the torque transmission end 300 has reached a height relative to the transmission hole 101 under the support of the support portion 411, the axis of the torque transmission end 300 deviates slightly from the axis of the drive shaft 310. The angle and height of the torque transmission end 300 are fine-tuned by the fine-tuning fixture 420 to further calibrate the axis of the torque transmission end 300 and the axis of the drive shaft 310, thereby improving the accuracy of the torque transmission end 300, the drive shaft 310 and the motor being installed on the same axis, reducing the deviation of the test results, and effectively improving the accuracy and reliability of the test data of the motor in high and low temperature environments.
[0045] The above-mentioned motor high and low temperature testing device, based on the traditional technology that can carry the torque transmission end 300 and make the torque transmission end 300 coaxially connected with the motor through the transmission shaft 310, adds a fine-tuning fixture 420 at the support end 400, and sets the fine-tuning fixture 420 between the support part 411 and the motor. The support part 411 is used to carry the torque transmission end 300 to reach a relative height with the motor, and the fine-tuning fixture 420 is used to drive the torque transmission end 300 to be fine-tuned in height and angle, so as to improve the accuracy of the alignment between the torque transmission end 300 and the motor axis, thereby reducing the test deviation and effectively improving the accuracy and reliability of the test data under the high and low temperature environment of the motor.
[0046] In this embodiment, the fine-tuning fixing member 420 includes an adjusting member 422 and a supporting member 424. The adjusting member 422 is mounted on the supporting portion 411 and is used to fine-tune the height and angle of the supporting member 424. The supporting member 424 is mounted on the adjusting member 422 and is used to support and fix the torque transmission end 300. The torque transmission end 300 is mounted on the supporting member 424, and the height or angle of the supporting member 424 is fine-tuned by driving the adjusting member 422, thereby driving the height or angle of the torque transmission end 300 on the supporting member 424 to be adjusted.
[0047] like Figure 3 and Figure 4As shown, in one embodiment, the adjusting member 422 includes a fine-tuning bolt 426 and a height limiting member 428, and the height limiting member 428 is located on a side of the supporting portion 411 adjacent to the supporting portion 424, the fine-tuning bolt 426 passes through the supporting portion 411 and the supporting portion 424 and is connected to the bearing of the height limiting member 428, and is only threadedly connected to the supporting portion 424, and the connecting surface of the fine-tuning bolt 426 and the supporting portion 411 is provided with a limiting portion 421, and the limiting portion 421 is used to prevent the fine-tuning bolt 426 from moving up and down relative to the supporting portion 411, and the supporting portion 424 is driven to move partly or as a whole in the height direction by rotating the fine-tuning bolt 426, and the space for the partial or overall movement of the supporting portion 424 is limited in combination with the height limiting member 428 and the limiting portion 421, so that the height and angle of the supporting portion 424 can only be fine-tuned.
[0048] In this embodiment, the support member 424 includes a base plate 423 and a fastening plate group 425. The end of the base plate 428 is threadedly connected to the fine-tuning bolt 426. The fastening plate group 425 is installed on the base plate 423 and is used to fix the torque transmission end 300. When fine-tuning the height and angle of the support member 424, the fine-tuning bolt 426 is rotated, and the threaded surface of the fine-tuning bolt 426 drives a group of ends of the base plate 423 to move up and down. Combined with the adjustment of multiple groups of ends of the base plate 423, the fine-tuning effect of the overall height or angle of the base plate 423 is achieved.
[0049] Preferably, the fastening plate group 425 is installed on the base plate by bolt connection or other detachable connection methods, so that the fastening plate group 425 can be replaced according to needs. The fastening plate group 425 includes a first fastening plate and a second fastening plate installed perpendicular to the base plate 423. The first fastening plate has a shelf hole for limiting the hysteresis brake and multiple groups of third fastening holes for fixing the hysteresis brake. The second fastening plate has multiple groups of fourth fastening holes for fixing the torque sensor. In order to enhance the stability of the installation of the first fastening plate and the second fastening plate, the two groups of fastening plates are connected together with a reinforcement plate.
[0050] In one embodiment, the support end 400 includes a support frame 410 (see Figure 3 ), the support portion 411 is located at a position of the support frame 410 relative to the transmission hole 101, and a caster 412 with a locking function is provided at the bottom of the support frame 410, and the caster 412 is used to reduce the friction force of the horizontal displacement of the support frame 410.
[0051] Preferably, the caster 412 is a universal wheel with a locking function, and the support frame 410 moves horizontally or rotates through the caster 412, so that the shaft of the torque transmission end 300 is easily extended into the coupling and connected to the transmission shaft 310.
[0052] In one embodiment, the mounting end 200 includes a fastener 210 and a mounting plate 220 (see Figure 1), the fastener 210 is installed on the inner wall of the environmental chamber 100, the mounting plate 220 is connected to the inner end of the fastener 210, and is used to fix the motor, the mounting plate 220 serves as a carrier of the motor, and the fastener 210 is used to fix the mounting plate 220 to the inner wall of the environmental chamber 100, thereby fixing the position of the motor.
[0053] In one embodiment, the mounting plate 220 has a motor stop hole 221 (see Figure 1 ), and the axis of the motor limit hole 221 is aligned with the transmission hole 101 (see Figure 2 ) coincide with the axis of the motor, and the mounting plate 220 has multiple groups of first fastening holes 223 for fixing the motor. When fixing the motor to the mounting plate 220, the rotating shaft of the motor is passed through the motor limiting hole 221, so that the mounting hole on the motor end cover is aligned with the first fastening hole 323, and the motor is fixed to the mounting plate 220 with bolts.
[0054] like Figure 5 As shown, in one embodiment, the inner wall of the environmental box 110 relative to the transmission hole 101 has a second fastening hole 103, and the fastener 210 includes a nut tube 212 and a fastening bolt 214. The nut tube 212 is installed on the mounting plate 220, and the outer diameter of the fastening bolt 214 matches the inner diameter of the second fastening hole 103. The fastening bolt 214 passes through the second fastening hole 103 and is threadedly connected to the nut tube 212 to lock the mounting plate 220 in the environmental box 100.
[0055] In this embodiment, a heat insulating medium 102 is installed on the surface of the environmental box 100 opposite to the rear end of the motor. The heat insulating medium 102 is used to reduce heat conduction between the motor and the inner wall of the environmental box 100 .
[0056] Specifically, when fixing the mounting plate 220 and the motor, first fasten the motor to the mounting plate 220 by bolts, then press the motor connected to the mounting plate 220 against the heat insulating medium 102, and use the fastening bolt 214 to pass through the second fastening hole 103 and screw it into the nut tube 212 to fix the motor in the environmental chamber 100. The mounting plate 220 is detachable here, which makes it easier to replace the mounting plate 220 according to the motor model to meet the adaptability of various functional motor installations for vehicles.
[0057] Optionally, the nut tube 212 passes through and is mounted on the mounting plate 220 or the nut tube 212 is fixedly mounted on a surface of the mounting plate 220 away from the transmission hole 101 .
[0058] Optionally, the heat insulating medium 102 is an insulating rubber pad or a silicone sheet or other heat insulating materials with flame retardant and high temperature resistance characteristics.
[0059] The technical features of the above-described embodiments may be arbitrarily combined. To make the description concise, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.
[0060] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the attached claims.
Claims
1. A motor high and low temperature test device, characterized in that: include: An environmental chamber having at least one set of transmission holes; A mounting end, located on the inner wall of the environmental chamber, for fixing the motor at a position coinciding with the axis of the transmission hole; A torque transmission end, arranged relative to the transmission hole and located outside the environmental chamber, has a transmission shaft and is used to provide a simulated load and monitor a torque value; A support end, having a support portion and a fine-adjustment fixing member, for supporting the torque transmission end to reach a height arranged relative to the transmission hole, and for fine-adjusting the angle of the torque transmission end; Among them, one end of the transmission shaft passes through the transmission hole and is connected to the rotating shaft of the motor through a coupling, and the other end thereof is connected to the torque transmission end through a coupling, and the fine-tuning fixing is installed on the supporting part, and the fine-tuning fixing fine-adjusts the angle of the torque transmission end so that the torque transmission end coincides with the axis of the transmission shaft and the motor.
2. The motor high and low temperature testing device according to claim 1, characterized in that: The fine-tuning fixing member includes an adjusting member and a supporting member. The adjusting member is mounted on the supporting portion and is used to fine-tune the height and angle of the supporting member. The supporting member is mounted on the adjusting member and is used to support and fix the torque transmission end.
3. The motor high and low temperature testing device according to claim 2, characterized in that: The adjusting member includes a fine-tuning bolt and a height limiting member, wherein the height limiting member is located on a side of the supporting portion adjacent to the supporting portion, the fine-tuning bolt passes through the supporting portion and the supporting portion and is connected to the bearing of the height limiting member, and is only threadedly connected to the supporting portion, and a limiting portion is provided on the connecting surface between the fine-tuning bolt and the supporting portion, and the limiting portion is used to prevent the fine-tuning bolt from moving up and down relative to the supporting portion.
4. The motor high and low temperature testing device according to claim 3, characterized in that: The support member comprises a base plate and a fastening plate group, the end of the base plate is threadedly connected to the fine-tuning bolt, the fastening plate group is mounted on the base plate, and is used to fix the torque transmission end.
5. The motor high and low temperature testing device according to any one of claims 1 to 3, characterized in that: The support end includes a support frame, the support portion is located at a position of the support frame relative to the transmission hole, and a caster with a locking function is provided at the bottom of the support frame, and the caster is used to reduce the friction force of the horizontal displacement of the support frame.
6. The motor high and low temperature testing device according to claim 1, characterized in that: The mounting end includes a fastener and a mounting plate. The fastener is mounted on the inner wall of the environmental chamber. The mounting plate is connected to the inner side end of the fastener and is used to fix the motor.
7. The motor high and low temperature testing device according to claim 6, characterized in that: The mounting plate is provided with a motor limiting hole, and the axis of the motor limiting hole coincides with the axis of the transmission hole. The mounting plate is provided with a plurality of groups of first fastening holes for fixing the motor.
8. The motor high and low temperature testing device according to claim 6 or 7, characterized in that: The inner wall of the environmental box relative to the transmission hole has a second fastening hole; The fastener includes a nut tube and a fastening bolt, the nut tube is installed on the mounting plate, the outer diameter of the fastening bolt matches the inner diameter of the second fastening hole, and the fastening bolt passes through the second fastening hole and is threadedly connected to the nut tube to lock the mounting plate in the environmental box.
9. The motor high and low temperature testing device according to claim 8, characterized in that: A heat insulating medium is installed on the surface of the environmental box opposite to the rear end of the motor, and the heat insulating medium is used to reduce heat conduction between the motor and the inner wall of the environmental box.