Motor test bench
The motor test bench with high-speed, high-power small motor and compact structure design solves the problem that motor test benches in the existing technology cannot take into account both miniaturization and high-power testing, and realizes the miniaturization, stability and safety improvement of the motor test bench.
Patent Information
- Application Number
- CN202422704518.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-06
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-06
AI Technical Summary
Existing motor test benches cannot simultaneously take into account miniaturization design and meet the needs of high-power motor testing. They also occupy a large area, have high material costs, and are difficult to move.
The use of high-speed, high-power small motors, through a compact structural design, combined with the test bench motor, torque measurement unit and coupling, enables testing without the need for additional reduction structures. The design is simple and the motor can be replaced to meet different needs.
The miniaturized design of the motor test bench is realized to meet the requirements of high-power motor testing. It has a stable structure, high safety, strong versatility and is easy to move.
Smart Images
Figure CN223401015U_ABST
Abstract
Description
Technical Field
[0001] The present application belongs to the technical field of drive equipment testing, and in particular relates to a motor test bench. Background Art
[0002] Motor test benches are equipment used to test motor performance and are widely used in fields such as electric vehicle motors and industrial drives. Traditional motor test benches require a speed reducer to reduce the output speed of the motor under test when testing high-speed motors. To meet the high-speed, high-torque, and high-power density testing requirements, the test bench is extremely large, which inevitably increases floor space and material costs, and also makes it difficult to move.
[0003] In order to meet the testing requirements for high-speed motors, the high-power motor test bench in the existing technology occupies a large area and has an insufficiently tight structural layout, which cannot simultaneously take into account the miniaturization design and meet the testing requirements of high-power motors.
[0004] Therefore, developing a motor test bench to solve the technical defects in the existing technology that the motor test bench cannot simultaneously take into account the miniaturized design and meet the requirements of high-power motor testing has become an urgent problem to be solved by technical personnel in this field. Utility Model Content
[0005] Based on this, it is necessary to provide a motor test bench to address the technical defects in existing technologies, in which the motor test bench cannot simultaneously take into account miniaturization design and meet the requirements of high-power motor testing.
[0006] The present application provides a motor test bench, the motor test bench comprising: a test bench motor, a torque measuring unit, and a coupling, wherein one end of the test bench motor is connected to the motor to be tested via the coupling, and the other end of the test bench motor is connected to the torque measuring unit;
[0007] The test bench motor is a small motor with high speed and high power.
[0008] In one embodiment, the motor test bench further includes: a test bench bracket, the test bench bracket is provided with a hole-shaped structure, the coupling passes through the hole-shaped structure, and the test bench motor and the motor to be tested are respectively arranged on both sides of the test bench bracket.
[0009] In one embodiment, the motor test bench further includes: a coupling baffle, an opening is provided on the side of the test bench bracket, and the coupling baffle covers the surface of the opening.
[0010] In one embodiment, the torque measuring unit includes: a torque sensor and a force applying rod, and the force applying rod is connected to the torque sensor and the test bench motor respectively.
[0011] In one embodiment, the torque measurement unit further includes a protective shell, which is covered on the outside of the test bench motor.
[0012] In one embodiment, the torque measuring unit further includes a rear cover, which covers an end of the protective shell close to the force applying rod.
[0013] In one embodiment, the torque measuring unit further includes: a bracket and a first bearing, the first bearing being arranged at the connection between the test bench motor and the force rod, the first bearing being mounted on the bracket, and the bracket being fixed to the rear cover.
[0014] In one embodiment, the motor test bench further includes: a second bearing, with both ends of the second bearing being arranged at the connection between the test bench motor and the coupling.
[0015] In one embodiment, the torque measuring unit further includes: a third bearing, which is arranged between the rear cover and the bracket.
[0016] In summary, the present application provides a motor test bench, comprising: a test bench motor, a torque measuring unit and a coupling, wherein one end of the test bench motor is connected to the motor to be tested via the coupling, and the other end of the test bench motor is connected to the torque measuring unit; the test bench motor is a high-speed, high-power small motor. In the technical solution provided by the present application, the test bench can achieve the testing requirements of other high-speed, high-power small motors through a compact structural design by using a high-speed and high-power miniaturized motor; when testing a high-power motor, there is no need to install an additional deceleration structure, thus meeting the design requirements of the motor test bench miniaturization. At the same time, the structure connected by the coupling has a simple mechanism design, and different test bench motors can be replaced according to actual test requirements, which is more versatile. The design of the test column makes the test safer, without any rotating parts exposed to the outside, and the design of the test column combines the functions of the test bench motor, the test motor and the safety shield into one, which not only improves the convenience of use, but also greatly realizes the overall miniaturization. The motor test bench provided in the present application solves the technical defect in the prior art that the motor test bench cannot simultaneously take into account miniaturization design and meet the requirements of high-power motor testing. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without any creative work.
[0018] Figure 1 In the technical solution provided in the embodiment of the present application, a schematic diagram of a structure in which a motor test bench is connected to a motor to be tested;
[0019] Figure 2 A schematic diagram of the structure of a motor test bench in the technical solution provided in the embodiment of the present application;
[0020] Figure 3 Another structural diagram of a motor test bench connected to a motor to be tested in the technical solution provided in the embodiment of the present application;
[0021] Figure 4 A schematic diagram of the installation structure of a torque measurement unit in a motor test bench provided in an embodiment of the present application;
[0022] Figure 5 A schematic structural diagram of a torque measurement unit in a motor test bench provided in an embodiment of the present application;
[0023] Figure 6 A partially enlarged schematic diagram of a motor test bench in the technical solution provided in an embodiment of the present application;
[0024] Figure 7 Another partially enlarged schematic diagram of a motor test bench in the technical solution provided in the embodiment of the present application;
[0025] Among them, the test bench bracket 1, the protective shell 2, the coupling baffle 3, the back cover 4, the motor to be tested 5, the test bench motor 6, the torque measuring part 7, the torque sensor 8, the force rod 9, the bracket 10, the first bearing 11, the coupling 12, the second bearing 13 and the third bearing 14. DETAILED DESCRIPTION
[0026] The present invention provides a motor test bench that addresses the technical limitations of existing motor test benches, which struggle to simultaneously achieve compact design and meet the requirements for high-power motor testing. Through structural optimization, the test bench motor, test motor, and safety shield, typically used in conventional structures, are fully integrated into the test column, greatly simplifying installation and providing a compact solution for miniaturization.
[0027] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.
[0028] In the description of the present application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.
[0029] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of such features. Throughout the description of this application, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.
[0030] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.
[0031] In this application, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.
[0032] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.
[0033] See also Figures 1 to 7 The present invention provides a motor test bench, comprising a test bench motor 6, a torque measuring unit 7, and a coupling 12. One end of the test bench motor 6 is connected to the motor to be tested 5 via the coupling 12, and the other end of the test bench motor 6 is connected to the torque measuring unit 7. The test bench motor 6 is a small, high-speed, high-power motor. The motor test bench provided in the present invention addresses the technical drawback of existing motor test benches, which cannot simultaneously achieve a compact design and meet the requirements of high-power motor testing.
[0034] In the technical solution provided in the embodiment of the present application, the test bench motor 6 is connected to the motor to be tested 5 through a coupling 12. At this time, combined with the common knowledge of those skilled in the art, the test bench motor 6 is radially fixed by the rotor of the test bench motor 6 and the coupling 12.
[0035] At this time, since the test bench motor 6 is a high-speed, high-power small motor, when the motor to be tested 5 is a high-speed motor, the motor test bench can complete the test of the high-speed motor to be tested 5 without installing an additional deceleration structure.
[0036] During the test process, small motors of different power or speed can be adjusted and replaced according to actual test requirements. Since the technical solution provided in the embodiment of the present application has a simple structure and is easy to disassemble, the motor test bench has greater versatility.
[0037] In the technical solution provided in the embodiment of the present application, when the test bench motor 6 drives the motor to be tested 5 to rotate through the coupling 12, the rotor of the test bench motor 6 will generate a reaction force on the stator during its rotation. Under the action of the reaction force, the test bench motor 6 produces a certain torsion. At this time, the torque sensor 8 connected to the test bench motor 6 can output the torque in real time after being subjected to force. The torque output at this time is the working torque of the motor to be tested 5.
[0038] To further optimize the technical solution, in order to effectively improve the stability of the motor test bench, ensure that the structure can be maintained stable during the testing of high-speed motors, and at the same time, improve the safety during the testing process, a motor test bench provided in an embodiment of the present application also includes: a test bench bracket 1, the test bench bracket 1 is provided with a hole-shaped structure, the coupling 12 passes through the hole-shaped structure, and the test bench motor 6 and the motor to be tested 5 are respectively arranged on both sides of the test bench bracket 1.
[0039] During the test, the bottom of the test bench bracket 1 can be fixed to the floor by a connecting structure such as bolts. At this time, when the coupling 12 rotates at high speed, the inner wall of the hole-shaped structure can play a corresponding blocking and protective role to prevent the connecting structure from flying out and causing danger when it rotates at high speed.
[0040] At the same time, the stator part of the test bench motor 6 can also be fixed to the test bench bracket 1 through a connecting structure such as bolts, further improving the stability of the motor test bench.
[0041] To further optimize the technical solution, since the outer periphery of the hole-shaped structure encloses the coupling 12, in order to facilitate the observation of the working condition of the coupling 12 during the test, such as whether there is any abnormality in the connection of the coupling 12 or whether the coupling 12 is damaged, a motor test bench provided in an embodiment of the present application also includes: a coupling baffle 3, an opening is provided on the side of the test bench bracket 1, and the coupling baffle 3 covers the surface of the opening.
[0042] To further optimize the technical solution, the torque measurement unit 7 provided in the embodiments of the present application includes a torque sensor 8 and a force-applying rod 9, which is connected to the torque sensor 8 and the test bench motor 6, respectively. As the test bench motor 6 twists, the force-applying rod 9 provides real-time feedback on the twisting state to the torque sensor 8. This ensures accurate torque detection while also offering the advantage of a simple structure.
[0043] In one technical solution provided in an embodiment of the present application, the torque measurement unit 7 further includes a protective housing 2, which is mounted on the exterior of the test bench motor 6. Protective housing 2 effectively protects the test bench motor 6, forming a relatively enclosed space to prevent accidental damage during high-speed rotation. Similarly, in an actual motor test bench, to further enhance stability, protective housing 2 can be mounted to the test bench bracket 1 using fasteners such as bolts.
[0044] Similarly, to enclose the entire test bench motor 6, the technical solution provided in the embodiment of the present application further includes a rear cover 4, which covers the end of the protective shell 2 near the force-applying rod 9. The rear cover 4 is connected to the protective shell 2, covering the entire test bench motor 6, effectively improving safety performance.
[0045] In order to play a supporting role during the mechanical transmission process and reduce friction, in the technical solution provided in the embodiment of the present application, the torque measuring unit 7 also includes: a bracket 10 and a first bearing 11. The first bearing 11 is arranged at the connection between the test bench motor 6 and the force rod 9. The first bearing 11 is installed on the bracket 10, and the bracket 10 is fixed to the back cover 4.
[0046] Similarly, in the technical solution provided in the embodiment of the present application, the motor test bench further includes: a second bearing 13 , both ends of the second bearing 13 are arranged at the connection between the test bench motor 6 and the coupling 12 .
[0047] Similarly, in the technical solution provided in the embodiment of the present application, the torque measuring unit 7 further includes: a third bearing 14 , which is arranged between the rear cover 4 and the bracket 10 .
[0048] In summary, the present application provides a motor test bench, comprising: a test bench motor, a torque measuring unit and a coupling, wherein one end of the test bench motor is connected to the motor to be tested via the coupling, and the other end of the test bench motor is connected to the torque measuring unit; the test bench motor is a high-speed, high-power small motor. In the technical solution provided by the present application, the test bench can achieve the testing requirements of other high-speed, high-power small motors through a compact structural design by using a high-speed and high-power miniaturized motor; when testing a high-power motor, there is no need to install an additional deceleration structure, thus meeting the design requirements of the motor test bench miniaturization. At the same time, the structure connected by the coupling has a simple mechanism design, and different test bench motors can be replaced according to actual test requirements, which is more versatile. The design of the test column makes the test safer, without any rotating parts exposed to the outside, and the design of the test column combines the functions of the test bench motor, the test motor and the safety shield into one, which not only improves the convenience of use, but also greatly realizes the overall miniaturization. The motor test bench provided in the present application solves the technical defect in the prior art that the motor test bench cannot simultaneously take into account miniaturization design and meet the requirements of high-power motor testing.
[0049] The technical features of the above-described embodiments may be combined in any manner. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there are no conflicts in the combination of these technical features, they should be considered to be within the scope of this specification. Furthermore, other implementations can be derived from the above-described embodiments, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure.
[0050] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.
Claims
1. A motor test bench, characterized in that: The motor test bench comprises: a test bench motor, a torque measuring unit and a coupling, wherein one end of the test bench motor is connected to the motor to be tested through the coupling, and the other end of the test bench motor is connected to the torque measuring unit; The test bench motor is a small motor with high speed and high power.
2. The motor test bench according to claim 1, characterized in that: The motor test bench further includes: a test bench bracket, the test bench bracket is provided with a hole-shaped structure, the coupling passes through the hole-shaped structure, and the test bench motor and the motor to be tested are respectively arranged on both sides of the test bench bracket.
3. The motor test bench according to claim 2, characterized in that: The motor test bench further includes a coupling baffle. An opening is provided on the side of the test bench bracket, and the coupling baffle covers the surface of the opening.
4. The motor test bench according to any one of claims 1 to 3, characterized in that: The torque measuring unit includes a torque sensor and a force applying rod, and the force applying rod is connected to the torque sensor and the test bench motor respectively.
5. The motor test bench according to claim 4, characterized in that: The torque measuring unit further includes a protective shell, which is covered on the outside of the test bench motor.
6. The motor test bench according to claim 5, characterized in that: The torque measuring part further includes a rear cover, which covers an end of the protective shell close to the force applying rod.
7. The motor test bench according to claim 6, characterized in that: The torque measuring unit further includes: a bracket and a first bearing, wherein the first bearing is provided at the connection between the test bench motor and the force applying rod, the first bearing is mounted on the bracket, and the bracket is fixed to the rear cover.
8. The motor test bench according to claim 1, characterized in that: The motor test bench further includes: a second bearing, both ends of which are arranged at the connection between the test bench motor and the coupling.
9. The motor test bench according to claim 7, characterized in that: The torque measuring unit further includes a third bearing disposed between the rear cover and the bracket.