Conducting ring for shaft

Abstract

The utility model relates to a conducting ring for a shaft, comprising a ring body which comprises a conducting upper ring, a conducting lower ring connected with the conducting upper ring, and a shaft hole into which a rotating shaft of a motor is inserted; the conductive cluster protrudes from the side wall of the shaft hole so as to abut against a motor rotating shaft; the wiring plug spring comprises a main body, a crimping structure arranged on the main body, and a connecting structure used for being connected with the conductive lower ring; the crimping structure is used for crimping with the conductive cluster to fix the conductive cluster. According to the conducting ring for the shaft provided by the utility model, the conducting cluster is pressed on the main body through the crimping structure, then the main body is installed on the conducting lower ring through the connecting structure, and finally the conducting upper ring is connected with the conducting lower ring. When the conductive cluster is in contact with the motor rotating shaft in the shaft hole, the conductive cluster provides a low-impedance path to guide the current of the motor rotating shaft to the outside so as to protect the motor.

Description

Technical Field

[0001] The utility model relates to the technical field of slip rings, in particular to a shaft slip ring. Background Art

[0002] As a key driving device, the performance and reliability of a motor are crucial to the normal operation of the entire system. However, during the operation of the motor, shaft static electricity problems will occur. The higher the rotational speed, the faster the shaft static electricity is generated. If this problem is not properly solved, serious consequences such as electromagnetic interference, reduced service life of the motor, and even motor damage may occur.

[0003] Shaft static electricity refers to the static charge accumulated on the motor shaft due to friction or other reasons. The shaft current flows through the motor bearing or other conductive components, which may cause local overheating, accelerate bearing wear, and pose a threat to the normal operation of the motor. Summary of the Utility Model

[0004] To solve the above problems, the present technical solution provides a shaft slip ring.

[0005] To achieve the above object, the present technical solution is as follows:

[0006] A shaft slip ring includes

[0007] a ring body, which includes an upper conductive ring, a lower conductive ring connected to the upper conductive ring, and a shaft hole for inserting a motor rotating shaft;

[0008] a conductive cluster, which protrudes from the side wall of the shaft hole to abut against the motor rotating shaft;

[0009] a wiring plug spring, which includes a main body, a crimping structure provided on the main body, and a connection structure for connecting to the lower conductive ring;

[0010] The crimping structure is used to crimp with the conductive cluster to fix the conductive cluster.

[0011] For a shaft slip ring as described above, a clamping hole is provided on the lower conductive ring, and the connection structure is clamped with the clamping hole to fix the wiring plug spring on the lower conductive ring.

[0012] For a shaft slip ring as described above, the crimping structure includes a crimping portion extending outward from one side of the main body, and the crimping portion is bent toward the main body to gradually reduce the distance between the two, so as to form a crimping cavity for clamping the conductive cluster.

[0013] For a shaft slip ring as described above, a plurality of the crimping portions are arranged side by side along the length direction of the main body, and a gap is provided between the two for the crimping portion to be bent independently.

[0014] A conductive ring for a shaft as described above, wherein the main body is bent in a U shape to form a mounting cavity for embedding the conductive cluster.

[0015] A conductive ring for a shaft as described above, wherein the connecting structure includes a connecting portion provided at the end of the main body and a clamping portion provided on the connecting portion. After the connecting portion passes through the clamping hole, the clamping portion restricts the connecting portion from disengaging from the clamping hole.

[0016] A conductive ring for a shaft as described above, wherein the clamping portion includes an elastic portion, and the elastic portion gradually inclines outward away from the main body. When the elastic portion passes through the clamping hole, it is compressed and contracted, and after passing through the clamping hole, it resets and presses against the outer edge of the clamping hole.

[0017] A conductive ring for a shaft as described above, wherein the two ends of the main body are respectively provided with the connecting portions, the clamping hole includes an inner hole and an outer hole arranged radially along the ring body, and the inner hole and the outer hole are respectively for the elastic portions located at the two ends of the main body to be clamped into.

[0018] A conductive ring for a shaft as described above, wherein a limiting block is provided on the lower conductive ring, and an installation groove for embedding the wiring spring is formed between the two limiting blocks.

[0019] A conductive ring for a shaft as described above, wherein an upper connecting hole is provided on the upper conductive ring, a lower connecting hole is provided on the lower conductive ring, and the upper connecting hole and the lower connecting hole are correspondingly arranged.

[0020] The beneficial effects of this application are:

[0021] The present utility model provides a conductive ring for a shaft. By using a crimping structure to press the conductive cluster tightly on the main body, then installing the main body on the lower conductive ring through the connecting structure, and finally connecting the upper conductive ring and the lower conductive ring. When the conductive cluster contacts the motor shaft in the shaft hole, the conductive cluster provides a low-impedance path to conduct the current of the motor shaft to the outside, thereby protecting the motor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model, the following will briefly introduce the drawings required for the description of the embodiments.

[0023] Figure 1 is the structural schematic diagram of the present utility model;

[0024] Figure 2 is the exploded view of the structure of the present utility model;

[0025] Figure 3 is Figure 1 the half-sectional view of

[0026] Figure 4 It is a schematic structural diagram of a wiring plug spring. Specific Embodiments

[0027] In order to make the technical problems, technical solutions and beneficial effects solved by the present utility model clearer and more understandable, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0028] An axial conductive ring includes

[0029] a ring body 1, which includes a conductive upper ring 11, a conductive lower ring 12 connected to the conductive upper ring 11, and a shaft hole 13 for inserting a motor shaft;

[0030] a conductive cluster 2, which protrudes from the side wall of the shaft hole 13 to abut against the motor shaft 6;

[0031] a wiring plug spring 3, which includes a main body 31, a crimping structure 4 provided on the main body 31, and a connection structure 5 for connecting to the conductive lower ring 12;

[0032] The crimping structure 4 is used to crimp with the conductive cluster 2 to fix the conductive cluster 2.

[0033] The present utility model provides an axial conductive ring. By using the crimping structure to press the conductive cluster onto the main body, then installing the main body on the conductive lower ring through the connection structure, and finally connecting the conductive upper ring and the conductive lower ring. When the conductive cluster contacts the motor shaft in the shaft hole, the conductive cluster provides a low-impedance path to conduct the current of the motor shaft to the outside, thereby protecting the motor.

[0034] Further, as a preferred implementation manner of this solution rather than a limitation, a clamping hole 121 is provided on the conductive lower ring 12, and the connection structure 5 is clamped with the clamping hole 121 to fix the wiring plug spring 3 on the conductive lower ring 12. The clamping method is fast and firm to install.

[0035] Further, as a preferred implementation manner of this solution rather than a limitation, the wiring plug spring and the conductive lower ring 12 can be welded, riveted, or clamped, and the circumferential position and quantity arrangement can be set according to user definition, with flexible adjustment.

[0036] Further, as a preferred implementation manner rather than a limitation of this solution, the crimping structure 4 includes a crimping portion 41 extending outward from one side of the main body 31. The crimping portion 41 is bent toward the main body 31 to gradually reduce the distance therebetween, so as to form a crimping cavity 42 for clamping the conductive cluster 2. The wiring spring is made of metal, the crimping portion can be bent, and the conductive cluster is made of conductive materials such as carbon fiber wires. The conductive cluster can be first made into a bundle and then placed into the main body for crimping, or multiple carbon fiber wires can be jointly placed into the main body for crimping.

[0037] Further, as a preferred implementation manner rather than a limitation of this solution, a plurality of the crimping portions 41 are arranged side by side along the length direction of the main body 31, and a gap 43 is provided therebetween for the crimping portion 41 to be bent independently. This can improve the firmness and range of crimping.

[0038] Further, as a preferred implementation manner rather than a limitation of this solution, the main body 31 is bent in a U shape to form a mounting cavity 311 for the conductive cluster 2 to be embedded. This is beneficial for positioning the conductive cluster during crimping and preventing deviation.

[0039] Further, as a preferred implementation manner rather than a limitation of this solution, the connection structure 5 includes a connection portion 51 provided at the end of the main body 31 and a clamping portion 52 provided on the connection portion 51. After the connection portion 51 passes through the clamping hole 121, the clamping portion 52 restricts the connection portion 51 from disengaging from the clamping hole 121. This anti-disassembly design can prevent the wiring spring from falling off.

[0040] Further, as a preferred implementation manner rather than a limitation of this solution, the clamping portion 52 includes an elastic portion 53. The elastic portion 53 gradually inclines outward away from the main body 31. When the elastic portion 53 passes through the clamping hole 121, it is compressed and contracted, and after passing through the clamping hole 121, it resets and presses against the outer edge of the clamping hole 121. Elastic deformation is used to provide elastic force for limiting.

[0041] Further, as a preferred implementation manner rather than a limitation of this solution, the connection portions 51 are respectively provided at both ends of the main body 31. The clamping hole 121 includes an inner hole 14 and an outer hole 15 arranged radially along the ring body 1. The inner hole 14 and the outer hole 15 are respectively for the elastic portions 53 located at both ends of the main body 31 to be snapped into.

[0042] Further, as a preferred implementation manner rather than a limitation of this solution, a limiting block 122 is provided on the conductive lower ring 12. An installation groove 123 for the wiring spring 3 to be embedded is formed between the two limiting blocks 122.

[0043] Further, as a preferred implementation manner rather than a limitation of this solution, an upper connection hole 111 is provided on the upper conductive ring 11, and a lower connection hole 124 is provided on the lower conductive ring 12. The upper connection hole 111 and the lower connection hole 124 are arranged corresponding to each other. Bolts can be passed through the upper connection hole and the lower connection hole and then connected to nuts, so that the upper conductive ring and the lower conductive ring are connected.

[0044] Further, as a preferred implementation manner rather than a limitation of this solution, the conductive cluster 2 includes a plurality of carbon fiber wires 22; or the conductive cluster 2 includes a plurality of carbon fiber wires 22 and a bundle sleeve 21 for binding the plurality of carbon fiber wires 22 to form a bundle. In addition to carbon fiber wires, other metal conductive wires can also be used. In addition to being cylindrical, the bundle sleeve can also be horn-shaped. The horn-shaped bundle sleeve is convenient for the carbon fiber wires to be inserted and crimped, and it is not easy for the wires to escape. The number and position of the carbon fiber wires can be flexibly and reasonably arranged according to actual needs. The bundle sleeve can protect the carbon fiber wires from being crushed.

[0045] The above are only the preferred embodiments of this application and are not used to limit the scope of implementation of this application. Other applications with the same or similar principles and basic structures as this application are within the protection scope of this application.

Claims

1. A conductive ring for a shaft, characterized in that: include A ring body (1) comprising a conductive upper ring (11), a conductive lower ring (12) connected to the conductive upper ring (11), and a shaft hole (13) for inserting a motor shaft; A conductive cluster (2) protrudes from the side wall of the shaft hole (13) to abut against the motor shaft; A terminal plug spring (3), comprising a main body (31), a crimping structure (4) provided on the main body (31), and a connecting structure (5) for connecting with the conductive lower ring (12); The crimping structure (4) is used for crimping with the conductive cluster (2) to fix the conductive cluster (2).

2. A conductive ring for a shaft according to claim 1, characterized in that: The conductive lower ring (12) is provided with a clamping hole (121), and the connecting structure (5) is clamped with the clamping hole (121) to fix the wiring spring (3) on the conductive lower ring (12).

3. A conductive ring for a shaft according to claim 1, characterized in that: The crimping structure (4) comprises a crimping portion (41) extending outward from one side of the main body (31), and the crimping portion (41) is bent toward the main body (31) to gradually reduce the distance between the two, so as to form a crimping cavity (42) for clamping the conductive cluster (2).

4. A conductive ring for a shaft according to claim 3, characterized in that: A plurality of the crimping portions (41) are arranged side by side along the length direction of the main body (31), and a gap (43) is provided between the two to allow the crimping portions (41) to be bent individually.

5. The conductive ring for a shaft according to claim 1, characterized in that: The main body (31) is bent in a U shape to form a mounting cavity (311) for the conductive cluster (2) to be embedded.

6. A conductive ring for a shaft according to claim 2, characterized in that: The connecting structure (5) comprises a connecting portion (51) provided on the end of the main body (31), and a clamping portion (52) provided on the connecting portion (51); after the connecting portion (51) passes through the clamping hole (121), the clamping portion (52) restricts the connecting portion (51) from escaping from the clamping hole (121).

7. A conductive ring for a shaft according to claim 6, characterized in that: The clamping portion (52) comprises an elastic portion (53), wherein the elastic portion (53) is gradually inclined away from the outer side of the main body (31), and the elastic portion (53) is compressed and contracted when passing through the clamping hole (121), and is reset and pressed against the outer edge of the clamping hole (121) after passing through the clamping hole (121).

8. A conductive ring for a shaft according to claim 7, characterized in that: The connecting parts (51) are respectively provided at both ends of the main body (31); the engaging hole (121) comprises an inner hole (14) and an outer hole (15) arranged radially along the ring body (1); the inner hole (14) and the outer hole (15) are respectively provided for the elastic parts (53) located at the two ends of the main body (31) to be engaged.

9. The conductive ring for a shaft according to claim 1, characterized in that: The conductive lower ring (12) is provided with a limit block (122), and a mounting groove (123) for the wiring plug spring (3) to be embedded is formed between the two limit blocks (122).

10. The conductive ring for a shaft according to claim 1, characterized in that: The conductive upper ring (11) is provided with an upper connection hole (111), and the conductive lower ring (12) is provided with a lower connection hole (124), and the upper connection hole (111) and the lower connection hole (124) are arranged correspondingly.

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