Quick fixing structure for carbon commutator detection
By designing the inner and outer sleeves, bearings, and adjusting gear structure of the bracket and fixing structure, the automatic fixing and multi-angle detection of the carbon commutator are realized, which solves the measurement error and damage problems caused by manual fixing and improves the detection accuracy and efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU YUANJINGHONG SCI TECH CO LTD
- Filing Date
- 2025-05-14
- Publication Date
- 2026-06-19
Smart Images

Figure CN224373757U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of carbon commutator manufacturing, and specifically to a quick-fixing structure for carbon commutator testing. Background Technology
[0002] Carbon commutators are key components in DC motors, series motors, and other equipment. Their performance directly affects the motor's operating efficiency, stability, and lifespan. Therefore, comprehensive and accurate testing of carbon commutators is an important step in ensuring motor quality.
[0003] The testing of carbon commutators is mainly divided into two types: visual inspection and electrical inspection. Visual inspection involves checking the dimensional accuracy of the carbon commutator surface and eliminating surface defects, while electrical inspection involves testing the resistance and withstand voltage of the carbon commutator.
[0004] When performing visual inspection on carbon commutators, they are usually handled manually. While this method is efficient, it has a large measurement error, and the grease and other substances on people's hands can also damage the carbon commutators. Therefore, a device is needed that can perform inspection quickly while avoiding the above problems. Utility Model Content
[0005] This utility model aims to solve the technical problems mentioned in the background section above, and proposes the following technical solutions:
[0006] A quick-fixing structure for carbon commutator testing includes a bracket and a fixing structure. The bracket includes a base and a fixing structure mounting base. The fixing structure mounting base is mounted on the base, and the fixing structure is mounted on the fixing structure mounting base. The fixing structure includes an outer sleeve, an inner sleeve, and a fixing ring. A bearing is provided on the inner wall of the outer sleeve, and the outer wall of the bearing is fixedly connected to the inner wall of the outer sleeve. The outer wall of the inner sleeve is fixedly connected to the inner wall of the bearing. An external gear ring is provided on the outer wall of the inner sleeve. An adjusting gear placement groove is provided on the side of the outer sleeve, and an adjusting gear is rotatably connected in the adjusting gear placement groove. The adjusting gear meshes with the external gear ring. The fixing ring is mounted on the inner wall of the inner sleeve.
[0007] Preferably, the retaining ring is magnetic.
[0008] Preferably, the thickness of the fixing ring is smaller at the front end and larger at the rear end.
[0009] Preferably, the fixed structure mounting base includes two side brackets and a rotating rod. The rotating rod is installed between the two side brackets, and both ends of the rotating rod are rotatably connected to the two side brackets respectively. The fixed structure is fixed to the side of the rotating rod.
[0010] Preferably, the base is a gimbal structure.
[0011] The beneficial effects of this utility model are:
[0012] 1. By setting up brackets and fixing structures to secure the carbon commutator, manual fixing can be replaced, reducing the probability of damage to the carbon commutator caused by manual labor and improving the accuracy of carbon commutator testing. Furthermore, by setting up an inner and outer sleeve structure with a bearing in the middle for the fixing structure, it can rotate during testing, making it convenient for staff to test and observe from multiple angles, thus improving testing efficiency and accuracy.
[0013] 2. By setting the thickness of the retaining ring to differ between the front and rear ends, this structure allows the retaining ring to hold the carbon commutator placed inside the inner sleeve, improving the stability of the carbon commutator during testing.
[0014] 3. By setting a rotating rod that can rotate freely on the two supports, the fixed structure can be rotated up and down, thus allowing staff to observe and inspect the carbon commutator from more angles.
[0015] 4. By setting the base as a gimbal structure, staff can observe and inspect the carbon commutator from different angles on the left and right. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the structure of this utility model;
[0017] Figure 2 This is a schematic diagram of the fixed structure of this utility model;
[0018] Figure 3 This is a cross-sectional view of the fixed structure of this utility model.
[0019] In the diagram: 1. Bracket; 1-1. Base; 1-2. Fixing structure mounting seat; 1-21. Side bracket; 1-22. Rotating rod; 2. Fixing structure; 2-1. Outer sleeve; 2-2. Inner sleeve; 2-3. Fixing ring; 3. Bearing; 4. Outer gear ring; 5. Adjusting gear placement slot; 6. Adjusting gear. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0021] In the description of this utility model, it should be understood that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. The connection methods described by the terms "fixed connection" and "fixed setting" include, but are not limited to, "welding," "riveting," "adhesion," and "threaded connection." The terms "comprising," "including," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus.
[0022] The terms “upper,” “lower,” “front,” “back,” “left,” “right,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0023] Example 1
[0024] Reference Figure 1-3 A quick-fixing structure for carbon commutator testing includes a bracket 1 and a fixing structure 2. The bracket 1 includes a base 1-1 and a fixing structure mounting seat 1-2. The fixing structure mounting seat 1-2 is mounted on the base 1-1, and the fixing structure 2 is mounted on the fixing structure mounting seat 1-2. The fixing structure 2 includes an outer sleeve 2-1, an inner sleeve 2-2, and a fixing ring 2-3. A bearing 3 is provided on the inner wall of the outer sleeve 2-1, and the outer wall of the bearing 3 is fixedly connected to the inner wall of the outer sleeve 2-1. The outer wall of the inner sleeve 2-2 is fixedly connected to the inner wall of the bearing 3. An outer gear ring 4 is provided on the outer wall of the inner sleeve 2-2. An adjusting gear placement groove 5 is provided on the side of the outer sleeve 2-1, and an adjusting gear 6 is rotatably connected in the adjusting gear placement groove 5. The adjusting gear 6 meshes with the outer gear ring 4. The fixing ring 2-3 is mounted on the inner wall of the inner sleeve 2-2.
[0025] Preferably, the retaining rings 2-3 are magnetic.
[0026] In actual operation, the carbon commutator to be tested is inserted into the inner sleeve 2-2 with the wire-welded end of the carbon commutator facing downwards. After the carbon commutator enters the inner sleeve 2-2, it will be blocked by the fixing ring 2-3, and the bottom of the carbon commutator will be attracted by the magnetic fixing ring 2-3. At this time, the operator can control the inner sleeve 2-2 of the outer peripheral gear ring 4 to rotate synchronously by rotating the adjusting gear 6. The operator can measure and observe from multiple angles without holding it by hand, which improves the accuracy of testing, reduces damage to the carbon commutator, and also improves the safety of the operator.
[0027] Example 2
[0028] The difference between this embodiment and Embodiment 1 is that the thickness of the fixing ring 2-3 is smaller at the front end and larger at the rear end. Using this structure, the carbon commutator placed in the inner sleeve 2-2 can be held in place by the fixing ring 2-3, thereby improving the stability of the carbon commutator during testing.
[0029] Example 3
[0030] Reference Figure 1 The difference between this embodiment and embodiment one is that the fixed structure mounting base 1-2 includes two side brackets 1-21 and a rotating rod 1-22. The rotating rod 1-22 is installed between the two side brackets 1-21, and both ends of the rotating rod 1-22 are rotatably connected to the two side brackets 1-21 respectively. The fixed structure 2 is fixed to the side of the rotating rod 1-22. By setting the rotating rod 1-22 to be able to rotate freely, the fixed structure can be rotated up and down, thereby providing the staff to observe and inspect the carbon commutator from more angles.
[0031] Example 4
[0032] Preferably, the base 1-1 is a gimbal structure, which has the function of rotation, allowing the staff to observe and test the carbon commutator from different angles on the left and right.
Claims
1. A quick-fixing structure for detecting carbon commutators, comprising a bracket (1) and a fixing structure (2), characterized in that, The bracket (1) includes a base (1-1) and a fixing structure mounting base (1-2). The fixing structure mounting base (1-2) is mounted on the base (1-1), and the fixing structure (2) is mounted on the fixing structure mounting base (1-2). The fixing structure (2) includes an outer sleeve (2-1), an inner sleeve (2-2), and a fixing ring (2-3). A bearing (3) is provided on the inner wall of the outer sleeve (2-1), and the outer wall of the bearing (3) is connected to the outer sleeve. (2-1) The inner wall is fixedly connected, the outer wall of the inner sleeve (2-2) is fixedly connected to the inner wall of the bearing (3), an outer gear ring (4) is provided on the outer wall of the inner sleeve (2-2), an adjusting gear placement groove (5) is provided on the side of the outer sleeve (2-1), an adjusting gear (6) is rotatably connected in the adjusting gear placement groove (5), the adjusting gear (6) meshes with the outer gear ring (4), and the fixing ring (2-3) is installed on the inner wall of the inner sleeve (2-2).
2. The quick-fixing structure for carbon commutator detection according to claim 1, characterized in that, The fixing ring (2-3) is magnetic.
3. The quick-fixing structure for carbon commutator detection according to claim 2, characterized in that, The thickness of the fixing ring (2-3) is smaller at the front end and larger at the rear end.
4. The quick-fixing structure for carbon commutator detection according to claim 2, characterized in that, The fixed structure mounting base (1-2) includes two side brackets (1-21) and a rotating rod (1-22). The rotating rod (1-22) is installed between the two side brackets (1-21). The two ends of the rotating rod (1-22) are rotatably connected to the two side brackets (1-21) respectively. The fixed structure (2) is fixed to the side of the rotating rod (1-22).
5. The quick-fixing structure for carbon commutator testing according to claim 4, characterized in that, The base (1-1) is a gimbal structure.