Testing device for motor twin trawling test
By designing a compact motor-towing test device, the innovative structure of positioning components, support components and connecting shafts is solved, and the problems of large size and high cost of traditional test devices are realized, stable connection and flexible installation of the motor are improved, and testing efficiency is improved.
Patent Information
- Application Number
- CN202421697085.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-17
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-07-17
AI Technical Summary
The traditional motor tow test device is huge in size and requires two thermostats to cover two electric drives respectively, resulting in high testing costs, especially during durability testing, which is severe resource consumption.
A compact motor towing test device is designed, including positioning components, support components and connecting shafts. Through spline interference fit and sealing devices, stable connection and corrosion prevention of the motor are achieved. The support components adopt adjustable connectors and bottom plate structures to support the flexible installation and position adjustment of the motor.
It realizes a test device with compact structure, high flexibility and easy installation of motors, reduces testing costs, improves testing efficiency, and especially reduces resource consumption for durable testing.
Smart Images
Figure CN223092093U_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to a test device for motor counter-rotation testing. Background Art
[0002] Before mass production, electric drive products need to undergo a large number of tests to test their performance and operating conditions to ensure their operating efficiency. Motor counter-rotation testing is a common test, which means connecting two motors with appropriate power coaxially, and testing the performance parameters of the motors, such as output power, torque, efficiency, response, etc., by loading a load and controlling the speed of the motors within a certain speed range. The test results can be used to evaluate the advantages and disadvantages of motor design, the quality of manufacturing processes, and the applicability of application scenarios, etc.
[0003] Motor counter-rotation testing is usually carried out on a dedicated test bench. The test bench mainly consists of motors, a load mechanism, a data acquisition system, and a control system. Test data can be collected and recorded in real time through sensors and instruments on the test bench, and the load and motor speed can be adjusted through the control system to complete the test tasks.
[0004] Since it is necessary to simulate the operating conditions of the electric drive product after being installed in a vehicle, it is necessary for the electric drive product to operate under specified environmental conditions during the counter-rotation testing process. The environmental conditions include temperature and humidity. Generally, a climate simulation test chamber (referred to as a temperature chamber) is used in the laboratory to control the ambient temperature and humidity of the test product.
[0005] Traditional counter-rotation test benches are bulky, and two temperature chambers are required to cover two electric drives respectively, which results in high test costs, especially for durability tests.
[0006] Therefore, it is necessary to design a test device for motor counter-rotation testing to solve the above problems. Summary of the Utility Model
[0007] Therefore, the object of the present disclosure is to provide a test device for motor counter-rotation testing, the test device is structurally compact, highly flexible, simply designed, easy to install motors, and saves test resources for counter-rotation testing, improving test efficiency.
[0008] The above object is achieved by the test device for motor counter-rotation testing described below.
[0009] The present disclosure provides a test device for motor back-to-back testing. The test device includes: a positioning component for positioning a first motor and a second motor to be tested; a support component including: a first support member disposed on the positioning component, on which the first motor can be installed and having a first hole for the first motor shaft of the first motor to pass through; a second support member disposed on the positioning component, on which the second motor can be installed and having a second hole for the second motor shaft of the second motor to pass through, wherein the second hole is aligned with the first hole; and a connecting member connected to the first support member and the second support member respectively; and a connecting shaft, one end of which can be connected to the first motor shaft and the other end of which can be connected to the second motor shaft. The structure of the above test device is simple and compact, highly flexible, easy to install motors, and low in cost. Especially for durability testing, the above test device avoids the consumption of test resources caused by long-term occupation of the test bench, and improves the test efficiency.
[0010] In one embodiment, the support component further includes a bottom plate, and the first support member and the second support member are fixed to the bottom plate. The use of the bottom plate can achieve more stable installation of the motor.
[0011] In one embodiment, the positioning component includes: a base; and a slide rail adjustably disposed on the base, wherein the bottom plate is slidably disposed on the slide rail. The above setting can achieve the position adjustment of the motor.
[0012] In one embodiment, the positioning component further includes an adjustable connecting member, and the slide rail is fixed to the base through the adjustable connecting member. The above setting can achieve the position adjustment of the motor.
[0013] In one embodiment, the adjustable connecting member is a right-angle buckle.
[0014] In one embodiment, the adjustable connecting member is adjustably disposed in a direction transverse to the extending direction of the connecting shaft. The above setting can achieve the position adjustment of the motor in a direction transverse to the extending direction of the connecting shaft.
[0015] In one embodiment, the slide rail is parallel to the extending direction of the connecting shaft. The above setting can achieve the position adjustment of the motor in the extending direction of the connecting shaft.
[0016] The above setting realizes the position adjustment of the positioning component or the motor in three directions, and the structure of the test device is compact, so it can be applied to test incubators of different volumes and has high flexibility.
[0017] In one embodiment, the connecting member is fixed to the first support member and the second support member at the first hole and the second hole respectively to form a receiving cavity communicating the first hole and the second hole, wherein the connecting shaft is at least partially located in the receiving cavity. Such an arrangement of the connecting member can not only prevent the motor shaft from being exposed, but also provide stable support for the first support member and the second support member.
[0018] In one embodiment, the connecting shaft is a spline shaft, and the splines of the connecting shaft are in interference fit with the splines of the corresponding motor shaft. The interference fit of the splines can ensure a firm connection.
[0019] In one embodiment, a first sealing device is provided between the driving end of the first motor and the first hole; and a second sealing device is provided between the driving end of the second motor and the second hole.
[0020] In one embodiment, a third sealing device is provided between the end face of the connecting member and the corresponding support member.
[0021] The above sealing arrangements can prevent the connecting shaft and the motor shaft from rusting due to direct exposure to air, and also ensure that during the test, no condensed water generated by alternating hot and cold temperatures or humidity enters the motor interior and causes the motor shaft to rust.
[0022] In one embodiment, the support assembly further includes a triangular reinforcing member, and the first support member and the second support member are respectively fixed to the bottom plate through the triangular reinforcing member. The use of the triangular reinforcing member can achieve more stable installation of the motor and is more convenient and fast for disassembly.
[0023] In one embodiment, positioning members for the corresponding motors are provided on the first support member and / or the second support member. The design of the positioning members makes the installation of the motor more convenient and fast.
[0024] In one embodiment, grooves for installing the air vent valves of the corresponding motors are provided on the first support member and / or the second support member. Such an arrangement can better adapt to the design of the motor and also makes the installation of the motor more convenient.
[0025] In one embodiment, the first support member and the second support member are plate-like members arranged in parallel. Such an arrangement makes the structure of the test device compact, small in volume, and convenient for installation and disassembly. BRIEF DESCRIPTION OF THE DRAWINGS
[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments of the present disclosure will be briefly introduced below. Among them, the drawings are only used to show some embodiments of the present disclosure, rather than limiting all embodiments of the present disclosure thereto. In the drawings:
[0027] Figure 1 Shows a schematic diagram of a test device for motor back-to-back testing according to an embodiment of the present disclosure;
[0028] Figure 2 Shows a schematic diagram of a test device for motor back-to-back testing according to an embodiment of the present disclosure and a part of the motor disposed thereon;
[0029] Figure 3 Shows a schematic diagram of a connecting shaft of a test device for motor back-to-back testing according to an embodiment of the present disclosure and a motor shaft of a motor connected thereto;
[0030] Figure 4 Shows a schematic diagram of a connecting shaft of a test device for motor back-to-back testing according to an embodiment of the present disclosure; and
[0031] Figure 5 Shows a schematic diagram of a part of a first motor to be tested. Detailed Description of the Invention
[0032] In order to make the objectives, technical solutions and advantages of the technical solutions of the present disclosure clearer, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments of the present disclosure. The same reference numerals in the drawings represent the same components. It should be noted that the described embodiments are only a part of the embodiments of the present disclosure, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the described embodiments of the present disclosure without creative efforts shall fall within the scope of protection of the present disclosure.
[0033] Unless otherwise defined, the technical terms or scientific terms used herein shall have the ordinary meanings understood by those of ordinary skill in the art to which the present disclosure pertains. The "first", "second" and similar terms used in the specification and claims of the patent application of the present disclosure do not denote any order, quantity or importance, but are only used to distinguish different components. Similarly, the terms such as "a" or "one" do not necessarily denote a quantity limitation. The terms such as "comprising", "including" or "having" mean that the elements or items appearing before the term cover the elements or items listed after the term and their equivalents, without excluding other elements or items. The terms such as "connected" or "communicated" are not limited to the physical or mechanical connection or communication shown in the drawings, but may include equivalent connections or communications thereto, whether direct or indirect. The terms such as "upper", "lower", "left" and "right" are only used to represent relative positional relationships, and when the absolute position of the object to be described changes, the relative positional relationship may also change accordingly.
[0034] The following will refer to Figures 1 to 5 describe in detail each embodiment of a test device for motor counter-rotation test according to an embodiment of the present disclosure.
[0035] As Figures 1 to 3 shown, a test device for motor counter-rotation test according to an aspect of the present disclosure includes a positioning assembly 1, a support assembly, and a connecting shaft 4. The first motor 11 and the second motor 12 for the counter-rotation test are positioned by the positioning assembly 1. For example, the first motor 11 can be a motor to be tested, and the second motor 12 can be a load motor. By adjusting the speed and torque of the load motor, the load condition under actual working conditions can be simulated, so as to obtain parameters such as torque, speed, and efficiency of the first motor 11.
[0036] For example, the support assembly includes a first support member 2, a second support member 3, and a connecting member 5. The first support member 2 is disposed on the positioning assembly 1, and the first motor 11 can be mounted thereon and has a first hole 15 for the first motor shaft 13 of the first motor 11 to pass through. The second support member 3 is disposed on the positioning assembly 1, and the second motor 12 can be mounted thereon and has a second hole for the second motor shaft 14 of the second motor 12 to pass through. The second hole ( Figure 1 not shown in the figure) is aligned with the first hole 15 and can have the same shape as the first hole 15. The connecting member 5 is respectively connected to the first support member 2 and the second support member 3.
[0037] As Figure 3 shown, one end of the connecting shaft 4 can be connected to the first motor shaft 13 of the first motor 11, and the other end can be connected to the second motor shaft 14 of the second motor 12. In this way, the first motor shaft 13 and the second motor shaft 14 can rotate simultaneously, coaxially, and in the same direction, thus meeting the requirements of the counter-rotation test.
[0038] The data acquisition system and the control system described above can be installed near the support assembly.
[0039] The structure of the above test device is simple and compact, highly flexible, easy to install motors, and low in cost. Especially for endurance tests, the above test device avoids the consumption of test resources caused by long-term occupation of the test bench, and improves the test efficiency.
[0040] For example, the support assembly further includes a bottom plate 8, and the first support member 2 and the second support member 3 are fixed to the bottom plate 8. Using the bottom plate can achieve more stable installation for the motors.
[0041] For example, the support assembly further includes a triangular reinforcement member 10, and the first support member 2 and the second support member 3 are respectively fixed to the bottom plate 8 through the triangular reinforcement member. For example, the support assembly may include four triangular reinforcement members 10, two of which are used to fix the first support member 2, and the other two are used to fix the second support member 3. For example, the triangular reinforcement member 10 for fixing the first support member 2 is located on the side of the first support member 2 opposite to the connecting member 5, and the triangular reinforcement member 10 for fixing the second support member 3 is located on the side of the second support member 3 opposite to the connecting member 5. This setting makes the support member more stable. The triangular reinforcement member 10 can be fixed to the bottom plate 8 through fasteners such as screws or bolts. Using the triangular reinforcement member can achieve more stable installation for the motor and is more convenient and quick to disassemble.
[0042] In other examples, the first support member 2 and the second support member 3 can also be fixed to the bottom plate 8 through threaded fasteners such as screws and bolts.
[0043] For example, a positioning member 21 for the corresponding motor is provided on the first support member 2 and / or the second support member 3. For example, the positioning member 21 is a positioning pin. Figure 1 Only the positioning pin on the first support member 2 for the first motor 11 is shown in the figure. The positioning pins on the second support member 3 for the second motor 12 can have the same form and the same position. The motor can be positioned first through the positioning member 21 and then fixed to the corresponding support member through a threaded fastener 23 such as a bolt. The design of the positioning member makes the installation of the motor more convenient and quick.
[0044] For example, a groove 22 for installing the breather valve of the corresponding motor is provided on the first support member 2 and / or the second support member 3. Figure 5 The breather valve 26 of the first motor 11 is shown, and the breather valve 26 is arranged in the groove 22 on the first support member 2. The groove on the second support member 3 for the second motor 12 can have the same form and the same position as the groove 22 on the first support member 2. This setting can better adapt to the design of the motor and also makes the installation of the motor more convenient.
[0045] For example, the first support member 2 and the second support member 3 are plate-shaped members arranged in parallel. This setting makes the structure of the test device compact, small in volume, and convenient for installation and disassembly.
[0046] For example, the positioning assembly 1 includes a base 6 and a slide rail 7. The slide rail 7 is adjustably arranged on the base 6. The bottom plate 8 is slidably arranged on the slide rail 7. The base 6 can be formed by connecting a plurality of cross beams. As Figure 2 and 3As shown, for example, the slide rail 7 is parallel to the extension direction of the connecting shaft 4, that is, the track direction of the slide rail 7 is parallel to the extension direction of the connecting shaft 4. The bottom plate 8 can move along the extension direction of the connecting shaft 4 or the first motor shaft 13 or the second motor shaft 14. The above setting can achieve the position adjustment of the motor in the extension direction of the connecting shaft 4.
[0047] For example, the positioning component 1 further includes an adjustable connecting piece 9, and the slide rail 7 is fixed to the base 6 through the adjustable connecting piece 9. For example, the adjustable connecting piece 9 is a right-angle buckle, and the right-angle buckle is made of, for example, a stainless steel sheet or a copper sheet, and the slide rail 7 is fixed to the base 6 through bolts or screws. For example, the adjustable connecting piece 9 is adjustably arranged in a direction transverse to the extension direction of the connecting shaft 4. By setting the adjustable connecting piece 9 at different positions, the position adjustment of the motor can be achieved in the horizontal direction transverse to the extension direction of the connecting shaft 4. By using adjustable connecting pieces 9 with different heights, the position adjustment of the motor can be achieved in the vertical direction transverse to the extension direction of the connecting shaft 4.
[0048] The above setting realizes the position adjustment of the positioning component or the motor in three directions, and the structure of the test device is compact, so it can be applied to test incubators of different volumes and has high flexibility.
[0049] Refer again to Figure 1 , for example, the connecting member 5 is fixed to the first support member 2 and the second support member 3 at the first hole 15 and the second hole respectively to form a receiving cavity 17 communicating the first hole 15 and the second hole, wherein the connecting shaft 4 is at least partially located in the receiving cavity 17. The connecting shaft 4 can be suspended in the receiving cavity 17. For example, after one of the first motor shaft 13 and the second motor shaft 14 is connected to the connecting shaft 4, the connecting shaft 4 is passed through the receiving cavity 17, and the corresponding motor is installed on the corresponding support member, and then the other of the first motor shaft 13 and the second motor shaft 14 is connected to the connecting shaft 4 and the corresponding motor is installed on the corresponding support member. For example, the connecting member 5 can have the form of a cylinder. One end face of the cylindrical connecting member 5 is fixed to the first support member 2 at the outer periphery of the diameter of the first hole 15 through a fastener such as a bolt or a screw, and the other end face is also fixed to the second support member 3 at the outer periphery of the diameter of the second hole through a fastener such as a bolt or a screw. The fastener is screwed into the connecting member 5 through the corresponding support member. This setting of the connecting member 5 can not only prevent the motor shaft from being exposed, but also provide stable support for the first support member 2 and the second support member 3.
[0050] As Figure 3 and 4 shown, for example, the connecting shaft 4 is a spline shaft, and the spline of the connecting shaft is in interference fit with the spline of the corresponding motor shaft. As Figure 4 and 5As shown, one end of the connecting shaft 4 has an internal spline 24, which is in interference fit with the external spline 25 of the first motor shaft 13 of the first motor 11. Similarly, the other end of the connecting shaft 4 also has an internal spline that is in interference fit with the external spline of the second motor shaft 14 of the second motor 12. The interference fit of the splines can ensure a firm connection.
[0051] For example, a first sealing device is provided between the driving end of the first motor 11 and the first hole 15; and a second sealing device is provided between the driving end of the second motor 12 and the second hole. For example, the first sealing device and the second sealing device can be sealing rings made of rubber. As Figure 5 shown, the driving end of the first motor 11 has a flange, and a groove 27 for installing the first sealing device is provided on the outer wall of the flange. The flange of the first motor 11 is inserted into the first hole 15, so that the outer wall of the flange contacts the inner wall of the first hole 15 and a compressed first sealing device is provided therebetween. The driving end of the second motor 12 has a structure similar to or the same as that of the first motor 11, which will not be elaborated here.
[0052] For example, a third sealing device is provided between the end face of the connecting member 5 and the corresponding supporting member. For example, the third sealing device can be a sealing ring made of rubber. For example, grooves for the third sealing device can be provided on the side faces of the first supporting member 2 and the second supporting member 3 facing the connecting member 5.
[0053] The above sealing settings can prevent the connecting shaft and the motor shaft from rusting due to direct exposure to the air, and also ensure that no condensed water generated by alternating hot and cold temperatures or humidity enters the motor during the test, causing the motor shaft to rust.
[0054] As can be seen from the above description, the test device for motor counter-traction test according to the present disclosure is not only structurally compact, highly flexible, and has a wide application range, but also has a simple design, is easy to install the motor, and has a low cost. In addition, the test device for motor counter-traction test according to the present disclosure can save test resources for counter-traction tests and improve test efficiency.
[0055] The above-disclosed technical features are not limited to the combinations with other disclosed features. Those skilled in the art can also make other combinations between the technical features according to the disclosure purpose, subject to achieving the purpose of the present disclosure.
Claims
1. A test device for motor counter-rotating test, characterized in that, The test device includes: a positioning component (1) for positioning a first motor (11) and a second motor (12) to be tested; a support component, including: a first support member (2) disposed on the positioning component (1), on which the first motor (11) can be installed and having a first hole (15) through which a first motor shaft (13) of the first motor passes; a second support member (3) disposed on the positioning component (1), on which the second motor (12) can be installed and having a second hole through which a second motor shaft (14) of the second motor passes, wherein the second hole is aligned with the first hole (15); and a connecting member (5) respectively connected to the first support member (2) and the second support member (3); and a connecting shaft (4), one end of which can be connected to the first motor shaft (13) and the other end of which can be connected to the second motor shaft (14).
2. The test device according to claim 1, wherein The support component further includes a bottom plate (8), and the first support member (2) and the second support member (3) are fixed to the bottom plate (8).
3. The testing device according to claim 2, wherein The positioning component (1) includes: a base (6); and a slide rail (7) adjustably disposed on the base (6), wherein the bottom plate (8) is slidably disposed on the slide rail (7).
4. The test device according to claim 3, characterized in that, The positioning component (1) further includes an adjustable connecting member (9), and the slide rail (7) is fixed to the base (6) through the adjustable connecting member (9).
5. The testing device according to claim 4, wherein The adjustable connecting member (9) is a right-angle snap.
6. The test device according to claim 4, wherein The adjustable connecting member (9) is adjustably disposed in a direction transverse to the extending direction of the connecting shaft (4).
7. The test device according to claim 3, wherein, The slide rail (7) is parallel to the extending direction of the connecting shaft (4).
8. The testing device according to claim 1, wherein The connecting member (5) is respectively fixed to the first support member (2) and the second support member (3) at the first hole (15) and the second hole to form a receiving cavity (17) communicating the first hole (15) and the second hole, wherein the connecting shaft (4) is at least partially located in the receiving cavity (17).
9. The test device according to claim 8, characterized in that, The connecting shaft (4) is a spline shaft, and the spline of the connecting shaft is in interference fit with the spline of the corresponding motor shaft.
10. The test device according to claim 8, wherein, A first sealing device is provided between the driving end of the first motor (11) and the first hole (15); and a second sealing device is provided between the driving end of the second motor (12) and the second hole.
11. The test device according to claim 8, wherein, A third sealing device is provided between the end face of the connecting member (5) and the corresponding support member.
12. The test device according to claim 2, wherein, The support component further includes a triangular reinforcing member (10), and the first support member (2) and the second support member (3) are respectively fixed to the bottom plate (8) through the triangular reinforcing member.
13. The test device according to claim 1, characterized in that Positioning members (21) for the corresponding motors are provided on the first support member (2) and / or the second support member (3).
14. The test device according to claim 1, characterized in that, Grooves (22) for installing air vents of the corresponding motors are provided on the first support member (2) and / or the second support member (3).
15. The test device according to claim 1, characterized in that, The first support member (2) and the second support member (3) are plate-shaped members arranged in parallel.