Driver test tool
By designing the driver test tooling, using components such as support seats and rotary rotors, efficient and general drive testing is achieved, solving the problems of low efficiency and poor compatibility of existing testing methods.
Patent Information
- Application Number
- CN202422776632.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-08-22
- Estimated Expiration
- 2034-11-14
AI Technical Summary
The existing drive testing methods are inefficient and cannot meet the production needs of multiple drives and compatible products, making it easy to damage other components of the system.
Design a driver test tool, including supporting seats, motor stator, rotor and load disk, and perform performance testing through different loads on the load disk, suitable for different models of drives.
Improves the efficiency and versatility of drive testing, avoids damage to other components of the system, and can adapt to the testing needs of multiple drives.
Smart Images
Figure CN223259237U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to driver testing, in particular to a driver testing tool. Background Art
[0002] Currently, driver testing is performed on the corresponding product. This method is inefficient and can damage other components in the system due to failures. Furthermore, due to the wide variety of driver types and compatible product types, current testing methods cannot meet production needs. Therefore, a universal test fixture has been designed. Utility Model Content
[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a driver testing tool.
[0004] The purpose of the utility model is achieved through the following technical solutions: a driver test fixture, including a support base, a line entry cavity is provided at the bottom of the support base, a mounting cavity is provided at the top of the support base, a motor stator is installed at the top of the mounting cavity, a through hole is provided at the bottom of the mounting cavity, and a stator bracket is installed on the bottom surface of the mounting cavity, a conductive slip ring is installed on the stator bracket, a rotary rotor is installed on the top of the conductive slip ring, the rotary rotor can rotate relative to the stator bracket, a rotary rotor shaft is installed on the inner side of the rotary rotor, and a motor rotor shaft is installed on the top of the rotary rotor shaft. The top of the rotor shaft is sleeved in the motor rotor, the motor rotor is located on the inner side of the motor stator, the top of the motor rotor is connected to the load component, the top of the mounting cavity is also equipped with a resolver stator, the resolver rotor is located on the inner side of the resolver stator, the resolver stator shaft is fixedly mounted on the resolver stator, the resolver rotor shaft is located on the inner side of the resolver stator shaft, a first annular step is provided on the inner side of the top of the resolver stator shaft, a second annular step is provided on the outer side of the top of the resolver rotor shaft, a bearing mounting groove is formed between the first annular step and the second annular step, and a bearing is mounted in the bearing mounting groove.
[0005] Optionally, the load component includes a load disc and a load shaft, the load shaft is detachably mounted on the top of the load disc, and the load shaft is connected to the top of the motor rotor.
[0006] Optionally, the load disc and the load shaft are connected via a plurality of locking screws, and the locking screws extend axially downward and pass through the motor rotor to be locked with the motor rotor shaft.
[0007] Optionally, a rotor bracket is installed between the resolver rotor and the conductive slip ring. The rotor bracket is located in the through hole, and there is a gap between the rotor bracket and the stator bracket. The resolver rotor is installed on the rotor bracket.
[0008] Optionally, an inwardly convex step is provided at the bottom of the inner cavity of the motor rotor shaft, and a plurality of screw holes are opened on the step. The motor rotor shaft and the resolver rotor shaft are locked by screws installed in the screw holes.
[0009] Optionally, the stator bracket includes a centrally located disk, the through hole is opened in the center of the disk, and a plurality of radial mounting rods are radially arranged on the disk, and the radial mounting rods are mounted on the top of the wire entry cavity.
[0010] Optionally, an annular groove is further provided on the top edge of the wire entry cavity, and the installation cavity is located inside the annular groove.
[0011] The utility model has the following advantages: the driver test fixture of the utility model can test the performance of the driver by connecting to the driver and then placing different loads on the load plate, and the test fixture can be connected to drivers of different models, thereby improving the versatility of the test fixture. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] Figure 1 It is a structural diagram of the utility model;
[0013] Figure 2 It is a cross-sectional schematic diagram of the utility model;
[0014] In the figure, 1-load disk, 2-load shaft, 3-motor rotor, 4-motor rotor shaft, 5-resolver rotor shaft, 6-resolver rotor, 7-rotor bracket, 8-conductive slip ring, 11-motor stator, 12-resolver stator shaft, 13-resolver stator, 14-stator bracket, 21-bearing, 22-bearing pressure ring, 31-support seat, 32-installation cavity, 33-annular groove. DETAILED DESCRIPTION
[0015] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.
[0016] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by a person of ordinary skill in the art without creative effort are within the scope of protection of the present invention.
[0017] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.
[0018] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0019] In the description of the present invention, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," "outer," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the product of the present invention is typically placed when in use, or are the orientations or positional relationships commonly understood by those skilled in the art. These terms are intended solely to facilitate the description of the present invention and to simplify the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0020] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.
[0021] like Figure 1As shown, a driver test fixture includes a support seat 31, a wire entry cavity is provided at the bottom of the support seat 31, and a mounting cavity 32 is provided at the top of the support seat 31. In this embodiment, the support seat 31 is a rotating body structure, and the wire entry cavity extends upward from the bottom of the support seat 31 to the top area of the support seat 31, and the mounting cavity 32 extends downward from the top of the support seat 31. In this embodiment, a motor stator 11 is installed on the top of the mounting cavity 32. The motor stator 11 is a rotating body structure, and a convex ring is provided on the outer side wall of the motor stator 11. A through hole is provided on the convex ring, and the convex ring and the top of the support seat 31 are locked by screws. When the motor stator 11 is installed, the bottom of the motor stator 11 cooperates with the mounting cavity 32, and the motor stator 11 The top of the mounting cavity 32 protrudes, and the bottom of the mounting cavity 32 is provided with a through hole, and the bottom surface of the mounting cavity 32 is provided with a stator bracket 14, and a conductive slip ring 8 is installed on the stator bracket 14. In this embodiment, a plurality of wire holes are provided on the side wall of the wire entry cavity, and the wires connected to the conductive slip ring 8 can be passed through the wire holes. The wire slip ring is a commercially available product, and its structure and working principle are not described in detail. A resolver rotor 6 is installed on the top of the conductive slip ring 8, and the resolver rotor 6 can rotate relative to the stator bracket 14. In this embodiment, a rotor bracket 7 is also installed between the resolver rotor 6 and the conductive slip ring 8. The rotor bracket 7 is located in the through hole, and there is a gap between the rotor bracket 7 and the stator bracket 14. The resolver rotor 6 is installed on the rotor bracket 7. A resolver rotor shaft is installed on the inside, a motor rotor shaft 4 is installed on the top of the resolver rotor shaft, the top of the motor rotor shaft 4 is sleeved in the motor rotor 3, the motor rotor 3 is located on the inside of the motor stator 11, and the top of the motor rotor 3 is connected to the load component. Further, the load component includes a load disk 1 and a load shaft 2. The load shaft 2 is detachably mounted on the top of the load disk 1, and the load shaft 2 is connected to the top of the motor rotor 3. A resolver stator 13 is also installed on the top of the mounting cavity 32. The resolver rotor 6 is located on the inside of the resolver stator 13. A resolver stator shaft 12 is fixedly mounted on the resolver stator 13. The resolver rotor shaft is located on the inside of the resolver stator shaft 12. A first annular step is provided on the inside of the top of the resolver stator shaft 12, and a second annular step is provided on the outside of the top of the resolver rotor shaft. shaped step, a bearing 21 mounting groove is formed between the first annular step and the second annular step, a bearing 21 mounting groove is installed in the bearing 21 mounting groove, and a bearing pressure ring 22 is also installed on the resolver stator shaft 12, and the bearing pressure ring 22 abuts against the outer ring of the bearing 21, thereby preventing the bearing 21 from withdrawing from the bearing 21 mounting groove. In this embodiment, the resolver stator 13 and the resolver rotor 6 are both commercially available products. Through the combination of the resolver rotor 6 and the resolver stator 13, when the load disk 1 rotates, its angle and displacement can be tested. In this embodiment, the connection terminals of the wires of the motor stator 11, the motor rotor 3, the resolver stator 13 and the resolver rotor 6 are all connected to the driver to be tested. Furthermore, the wires of the resolver rotor 6 and the motor rotor 3 are led out through the conductive slip ring 8.The motor stator 11 and resolver stator 13 are fixed components, and their lead extraction is conventional technology and will not be elaborated on. During use, a load is placed on the load disk 1, and then the motor rotor 3 is controlled to rotate by the driver under test, thereby driving the resolver rotor 6 to rotate. The resolver rotor 6 feeds back its detected signal to the driver under test through the wire, thereby testing the performance of the driver under test. Therefore, the performance of the driver under test can be tested according to different loads. At the same time, the tool can also be connected to different drivers, so it can test different models of drivers, improving the versatility of the tool test.
[0022] In this embodiment, the load disc 1 and the load shaft 2 are connected by a plurality of locking screws, and the locking screws extend axially downward and pass through the motor rotor 3 to be locked with the motor rotor shaft. Therefore, the load disc 1, the load shaft 2, the motor rotor 3 and the motor rotor shaft are locked by a set of locking screws, thereby facilitating their connection. At the same time, it also makes it unnecessary to open too many holes on the load disc 1, the load shaft 2, the motor rotor 3 and the motor rotor shaft, thereby reducing the processing difficulty and reducing the space occupied by the overall structure.
[0023] In this embodiment, an inwardly convex step is provided at the bottom of the inner cavity of the motor rotor shaft 4, and a plurality of screw holes are provided on the step. The motor rotor shaft 4 and the resolver rotor shaft are locked by screws installed in the screw holes. Therefore, the motor rotor shaft 4 and the resolver rotor shaft are not detachably connected, and their disassembly and assembly are convenient.
[0024] In this embodiment, the stator bracket 14 includes a centrally located disk with a through hole opened in the center of the disk. A plurality of radial mounting rods are radially arranged on the disk. The radial mounting rods are mounted on the top of the wire entry cavity. There are four radial mounting rods, which are evenly distributed on the same circumference.
[0025] In this embodiment, an annular groove 33 is further provided on the top edge of the wire entry cavity, and the installation cavity 32 is located on the inner side of the annular groove 33. The annular groove 33 not only reduces the consumables of the support seat 31, but also enables the wire entry cavity of the support seat 31 to have a downwardly protruding convex portion. Since the installation cavity 32 is provided on the convex portion, the side wall of the convex portion is a thin-walled structure. At this time, the annular groove 33 also has a heat-dissipating effect.
[0026] The working process of this utility model is as follows:
[0027] The driver to be tested has a connection port. The connection terminals of the various components on the test fixture are connected to the corresponding connection ports. Then, a load is placed on the load disk 1. The driver to be tested controls the rotation of the test fixture. The detected signal is fed back to the driver to be tested through a wire through the combination of the resolver rotor 6 and the resolver stator 13, so that the performance of the driver to be tested can be tested. Therefore, the performance of the driver to be tested can be tested according to different loads. At the same time, the fixture can also be connected to different drivers, so that different models of drivers can be tested, which improves the versatility of the fixture test.
[0028] Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments, or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.
Claims
1. A driver testing tool, characterized by: The invention comprises a support base, a line entry cavity is provided at the bottom of the support base, a mounting cavity is provided at the top of the support base, a motor stator is installed at the top of the mounting cavity, a through hole is provided at the bottom of the mounting cavity, and a stator bracket is installed at the bottom surface of the mounting cavity, a conductive slip ring is installed on the stator bracket, a rotary rotor is installed on the top of the conductive slip ring, and the rotary rotor can rotate relative to the stator bracket, a rotary rotor shaft is installed on the inner side of the rotary rotor, a motor rotor shaft is installed on the top of the rotary rotor shaft, and the top of the motor rotor shaft is sleeved in the motor rotor. The motor rotor is located on the inner side of the motor stator, the top of the motor rotor is connected to the load component, and a resolver stator is also installed on the top of the mounting cavity. The resolver rotor is located on the inner side of the resolver stator, and a resolver stator shaft is fixedly mounted on the resolver stator. The resolver rotor shaft is located on the inner side of the resolver stator shaft, a first annular step is provided on the inner side of the top of the resolver stator shaft, and a second annular step is provided on the outer side of the top of the resolver rotor shaft. A bearing mounting groove is formed between the first annular step and the second annular step, and a bearing is mounted in the bearing mounting groove.
2. The driver testing tool according to claim 1, characterized in that: The load component includes a load disc and a load shaft. The load shaft is detachably mounted on the top of the load disc and is connected to the top of the motor rotor.
3. The driver testing tool according to claim 2, characterized in that: The load disc is connected to the load shaft via a plurality of locking screws, and the locking screws extend axially downward and pass through the motor rotor to be locked with the motor rotor shaft.
4. The driver testing tool according to any one of claims 1 to 3, characterized in that: A rotor bracket is installed between the resolver rotor and the conductive slip ring. The rotor bracket is located in the through hole, and a gap is provided between the rotor bracket and the stator bracket. The resolver rotor is installed on the rotor bracket.
5. The driver testing tool according to claim 3, characterized in that: The bottom of the inner cavity of the motor rotor shaft is provided with an inwardly convex step, and a plurality of screw holes are opened on the step. The motor rotor shaft and the resolver rotor shaft are locked by screws installed in the screw holes.
6. The driver testing tool according to claim 5, characterized in that: The stator support comprises a centrally located disk, the through hole is opened in the center of the disk, a plurality of radial mounting rods are radially arranged on the disk, and the radial mounting rods are mounted on the top of the wire entry cavity.
7. The driver testing tool according to claim 5, characterized in that: An annular groove is further provided on the top edge of the wire entry cavity, and the installation cavity is located inside the annular groove.