CN-122026674-A - Grounding device for shaft end of motor shaft

CN122026674ACN 122026674 ACN122026674 ACN 122026674ACN-122026674-A

Abstract

The application relates to the field of electric power grounding, in particular to a grounding device for the shaft end of a motor shaft, which comprises a first conductive seat and a second conductive seat which are oppositely arranged, wherein the first conductive seat is used for being connected with the shaft end of the motor shaft, the second conductive seat is used for being connected with an insulating frame on a vehicle body, one side, close to the first conductive seat, of the second conductive seat is fixedly provided with a plurality of containing frames, conductive blocks are penetrated in the containing frames in a sliding manner, elastic pieces are arranged in the containing frames, the elastic pieces are used for driving the conductive blocks to tightly abut against the first conductive seat, conductive wires are connected between the conductive blocks and the second conductive seat, and the second conductive seat is electrically connected with a grounding system of the vehicle body. The application has the effect of improving the safety of motor operation.

Inventors

LI QIANG
YAN HUOJUN
YAN XUDONG
MA DONGDONG
WANG BINBIN
WANG JIE
ZHANG YUJIE

Assignees

洛阳制动新能源科技有限公司
河南和实科技有限公司

Dates

Publication Date: 20260512
Application Date: 20260408

Claims (10)

1. The grounding device for the shaft end of the motor shaft is characterized by comprising a first conductive seat (1) and a second conductive seat (2) which are oppositely arranged, wherein the first conductive seat (1) is used for being connected with the shaft end of the motor shaft, the second conductive seat (2) is used for being connected with an insulating frame on a vehicle body, one side, close to the first conductive seat (1), of the second conductive seat (2) is fixedly provided with a plurality of containing frames (3), conductive blocks (4) are arranged in the containing frames (3) in a sliding mode, elastic pieces (5) are arranged in the containing frames (3) in a sliding mode, the elastic pieces (5) are used for driving the conductive blocks (4) to tightly abut against the first conductive seat (1), conductive wires (8) are connected between the conductive blocks (4) and the second conductive seat (2), and the second conductive seat (2) is electrically connected with a grounding system of the vehicle body.
2. The grounding device for the shaft end of the motor shaft according to claim 1, wherein one conductive block (4) inside the accommodating frame (3) stretches freely, the rest of the accommodating frames (3) are provided with first locking rods (9), the accommodating frame (3) is provided with first through holes (10) for the first locking rods (9) to slide and pass through, and the conductive block (4) is provided with limiting grooves (14) for the first locking rods (9) to pass through.
3. The grounding device for the shaft end of the motor shaft according to claim 1, wherein a plurality of containing frames (3) are distributed in a ring shape, a connecting block (15) is fixedly installed between two adjacent containing frames (3), a first containing groove (16) through which a first locking rod (9) slides and penetrates is formed in the connecting block (15), a driving assembly (18) is installed on the connecting block (15), and the driving assembly (18) is used for driving the first locking rod (9) to be pulled out of the limiting groove (14).
4. The grounding device for the shaft end of a motor shaft according to claim 3, wherein the driving assembly (18) comprises a second locking rod (181), a first guide block (182) and a second guide block (183), a second accommodating groove (17) through which the second locking rod (181) slides is formed in the connecting block (15), the first accommodating groove (16) and the second accommodating groove (17) are communicated with each other, a second through hole (11) through which the second locking rod (181) slides is formed in the accommodating frame (3), the first guide block (182) is fixedly mounted at one end, close to the conductive block (4), of the first locking rod (9), one side, close to the second conductive seat (2), of the first guide block (182) is obliquely arranged, the second guide block (183) is fixedly mounted at one end, far away from the conductive block (4), of the second locking rod (181), one side, obliquely, of the second guide block (183), is used for enabling the first locking rod (9) to be attached, and the first locking rod (9) is sequentially inserted into the accommodating frame (3), and the first locking rod (181) is sequentially inserted into the accommodating frame (3).
5. The grounding device for the shaft end of a motor shaft according to claim 4, wherein a third guide block (19) is fixedly arranged at one end, far away from the second guide block (183), of the second locking rod (181), one side, far away from the second conductive seat (2), of the third guide block (19) is obliquely arranged, and a ball (20) is arranged at one side, far away from the second locking rod (181), of the third guide block (19) in an interference mode.
6. The grounding device for the shaft end of a motor shaft according to claim 4, wherein the elastic piece (5) is a coil spring, a first mounting plate (6) is fixedly mounted on the inner wall of the accommodating frame (3), a second mounting plate (7) is fixedly mounted on one side, close to the second conductive seat (2), of the first mounting plate (6), the second mounting plate (7) is bent to accommodate a bent portion of the elastic piece (5), and the free end of the elastic piece (5) is fixedly connected with the first mounting plate (6).
7. A grounding device for the shaft end of a motor shaft according to claim 6, characterized in that the first mounting plate (6) is provided with a third port (12) aligned with the first port (10), and the first mounting plate (6) is provided with a fourth port (13) aligned with the second port (11).
8. The grounding device for the shaft end of a motor shaft according to claim 1, wherein a plurality of heat dissipation grooves (21) are formed in the peripheral side of the conductive block (4).
9. The grounding device for the shaft end of a motor shaft according to claim 8, wherein a plurality of reinforcing blocks (22) are fixedly arranged on the inner wall of the accommodating frame (3), and the reinforcing blocks (22) are slidably arranged in the heat dissipation groove (21).
10. The grounding device for the shaft end of a motor shaft according to claim 9, wherein the reinforcing block (22) is triangular, the tip of the reinforcing block (22) is inserted into the heat dissipation groove (21), and a space is left between the tip of the reinforcing block (22) and the bottom of the heat dissipation groove (21).

Description

Grounding device for shaft end of motor shaft Technical Field The application relates to the field of power grounding, in particular to a grounding device for a shaft end of a motor shaft. Background The motor is one of core components in industries such as wind generating sets, high-speed rails, trains and the like, and stable operation of the motor is important for guaranteeing safety and high efficiency of equipment. In the prior art, in order to ensure the safety and the high efficiency of equipment, measures are generally taken from the aspects of design and maintenance of the motor itself. On the one hand, in the motor manufacturing process, materials of a motor shaft and a bearing can be optimally selected, so that the wear resistance and corrosion resistance of the motor shaft and the bearing are improved, and the service life of the component is prolonged. On the other hand, the daily maintenance and inspection of the motor can be enhanced, worn parts can be replaced regularly, and the normal operation of the motor is ensured. Meanwhile, some monitoring means are adopted to monitor the running state of the motor in real time so as to discover and treat potential problems in time. However, when there is a potential difference between the motor shaft and the bearing, the current may form a loop through the bearing, so that an electrolytic corrosion or discharge phenomenon occurs. Such electrolytic corrosion or discharge phenomena can accelerate wear of the bearing, even cause damage to the bearing, and seriously affect the safety of motor operation. Disclosure of Invention In order to improve the operation safety of a motor, the application provides a grounding device for the shaft end of a motor shaft. The application provides a grounding device for a shaft end of a motor shaft, which adopts the following technical scheme: the utility model provides a grounding device for the axle head of motor shaft, includes the first conductive seat and the second conductive seat of relative setting, first conductive seat is used for being connected with the axle head of motor shaft, the second conductive seat is used for being connected with the insulating frame on the automobile body, one side that the second conductive seat is close to first conductive seat fixed mounting has a plurality of frames that hold, hold the inside conductive block that slides of frame, the internally mounted who holds the frame has the elastic component, the elastic component is used for driving the conductive block tightly to support first conductive seat, be connected with the conductor wire between conductive block and the second conductive seat, the second conductive seat is connected with the earthing system electricity of automobile body. Through adopting above-mentioned technical scheme, be connected the axle head of first conductive seat and motor shaft, second conductive seat and automobile body insulating frame are connected, utilize the tight first conductive seat of elastic component drive conductive block, the conductive block passes through the electric wire and is connected with the second conductive seat, the second conductive seat is connected with automobile body ground system electricity, can dredge the electric current, reduces the appearance that produces the electric erosion or discharge phenomenon because of the potential difference between motor shaft and the bearing, improves the security of motor operation. Optionally, one the inside conducting block of holding the frame freely stretches out and draws back, and is remaining hold the frame and be provided with first locking pole, hold the frame and offer the first opening that supplies first locking pole to slide and wear to establish, the spacing groove that supplies first locking pole to wear to establish is offered to the conducting block. Through adopting above-mentioned technical scheme, first locking pole and cooperation spacing groove can carry out spacingly to corresponding conductive block, can control the flexible state of conductive block in the different accommodation frames as required. Optionally, a plurality of hold the frame and be annular distribution, adjacent two fixed mounting has the connecting block between holding the frame, the connecting block has been seted up and has been supplied first locking pole to slide the first holding tank of wearing to establish, drive assembly is installed to the connecting block, drive assembly is used for driving first locking pole and extracts from the spacing groove. Through adopting above-mentioned technical scheme, drive assembly can drive first locking pole and pull out from the spacing groove of conducting block, and the flexible state of conducting block is convenient for adjust as required, has strengthened earthing device's adjustability. Optionally, the drive assembly includes second locking pole, first guide block, second guide block, the connecting block has been seted up and has been supplie