CN210686644U

CN210686644U - Bearing for robot

Info

Publication number: CN210686644U
Application number: CN201921813354.2U
Authority: CN
Inventors: 胡定一
Original assignee: Ningbo Ruichi Technology Co Ltd
Current assignee: Ningbo Ruichi Technology Co Ltd
Priority date: 2019-10-25
Filing date: 2019-10-25
Publication date: 2020-06-05
Anticipated expiration: 2029-10-25

Abstract

The utility model relates to a robot accessory field especially discloses a bearing for robot, including outer lane, inner circle, ball, holder and sealing device, the outer lane is connected with the inner circle through the holder, the holder internal rotation is connected with the ball, the outer lane with the joint has sealing device between the inner circle, just the sealing device symmetry sets up the holder both sides, sealing device includes the sealing washer, the disc left end is equipped with the sealing ring outside the sealing washer, the disc right-hand member is equipped with soft backing ring outside the sealing washer. The utility model provides a bearing for robot through the improvement to the sealed lid of current bearing, improves bearing leakproofness and stability, prevents that the pollutant from invading and emollient is leaked outward, guarantees bearing performance, optimizes sealing device simultaneously, makes the bearing assembly convenient, can enough improve the leakproofness of bearing, conveniently maintains or adds emollient to the bearing again.

Description

Bearing for robot

Technical Field

The utility model relates to a robot accessory field especially relates to a bearing for robot.

Background

In the field of robot accessories, a bearing is an important part, and is generally connected with a rotating shaft and other supporting accessories to play a role of rotatably supporting a mechanical part.

In prior art, the laminating is inseparable inadequately between outer lane and the sealed lid in the bearing, has sealed clearance, causes external pollutants such as moisture, dust, impurity to invade the bearing easily inside, perhaps the inside emollient of bearing takes place to leak for bearing performance greatly reduced, and the inconvenient dismantlement of sealed lid leads to the bearing to be in the use inside the problem of appearing can not in time solve, influences the bearing normal work, further shortens bearing life.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the problem of providing a bearing for a robot, which solves the problem of poor sealing performance of the existing bearing, prevents pollutants from entering and lubricant from leaking out, and ensures the service performance of the bearing; optimize sealing device, make the bearing assembly convenient, can in time discover and solve the problem that the bearing appears, improve bearing life.

The utility model provides a technical scheme that above-mentioned technical problem adopted is: the bearing for the robot comprises an outer ring, an inner ring, balls, a retainer and sealing devices, wherein the outer ring is connected with the inner ring through the retainer, the balls are connected in the retainer in a rotating mode, the sealing devices are connected between the outer ring and the inner ring in a clamping mode, and the sealing devices are symmetrically arranged on two sides of the retainer.

Sealing device includes the sealing washer, the disc left end outside the sealing washer is equipped with the sealing ring, disc right-hand member outside the sealing washer is equipped with the cushion ring, the inside dashpot of seting up in sealing washer right side, the design ring is installed to the dashpot inside wall, the design ring outer wall evenly is equipped with the sealing member along its circumference direction, the storage tank is seted up to sealing washer left side lower extreme outer wall, be connected with the pull ring through sliding fit's mode in the storage tank.

Preferably, the sealing member is including installing the telescopic link at the design ring outer wall, telescopic link upper end joint has the arc, the arc with the laminating of cushion ring inner wall, telescopic link outer wall parcel has expanding spring, the expanding spring both ends respectively with the arc with the design ring is connected, the arc lower extreme is connected with the stay cord, the stay cord passes the telescopic link with the design ring, just the stay cord lower extreme with the pull ring right-hand member is connected.

Preferably, the inner wall of the outer ring is provided with a sealing groove, the sealing ring is clamped with the sealing groove, and the sealing ring are made of rubber materials.

Preferably, the cushion ring with the sealing member is corresponding, the cushion ring is the rubber material, just cushion loopback elasticity ratio the sealing washer resilience is high.

Preferably, the arc-shaped strip and the shaping ring are made of iron materials.

Compared with the prior art, the technical scheme of the utility model have following advantage:

1. the utility model provides a bearing for robot through the improvement to the sealed lid of current bearing, improves bearing leakproofness and stability, prevents that the pollutant from invading and emollient is leaked outward, guarantees bearing performance, optimizes sealing device simultaneously, makes the bearing assembly convenient, can enough improve the leakproofness of bearing, conveniently maintains or adds emollient to the bearing again.

2. The utility model provides a bearing for robot carries out preliminary sealing through sealing ring and seal groove joint, and the cooperation of sealing member and soft backing ring makes sealing device and bearing inner race laminating inseparabler, forms the leakproofness that the sealing layer increased the bearing again, prevents that the pollutant from invading or emollient from leaking outward, and simultaneously, arc ring and design ring are iron material, can guarantee sealing device's stability, and then the leakproofness of guarantee bearing.

3. The utility model provides a pair of bearing for robot drives spring and telescopic link shrink through pull ring pulling stay cord, and the arc ring separates with the cushion ring, and the manual sealing device that takes out of being convenient for dismantles simply conveniently, and the convenience is to the maintenance of bearing or add emollient fat.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention (the seal assembly is shown only on one half side);

FIG. 2 is a schematic view of the internal structure of the sealing device of the present invention;

fig. 3 is an enlarged view of a portion a of fig. 2 according to the present invention.

Wherein: the device comprises an outer ring 1, an inner ring 2, balls 3, a retainer 4, a sealing device 5, a sealing ring 51, a sealing ring 52, a cushion ring 53, a buffer groove 54, a shaping ring 55, a sealing element 56, a telescopic rod 561, an arc-shaped strip 562, a telescopic spring 563, a pull rope 564, a holding groove 57 and a pull ring 58.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

Referring to fig. 1 to 3, the utility model provides a bearing for robot, including outer lane 1, inner circle 2, ball 3, holder 4 and sealing device 5, outer lane 1 is connected with inner circle 2 through

holder

4, and 4 internal rotations of holder are connected with ball 3, and the joint has sealing device 5 between outer lane 1 and the inner circle 2, and sealing device 5 symmetry sets up in holder 4 both sides.

The inner wall of the outer ring 1 is provided with a sealing groove, the sealing ring 52 is clamped with the sealing groove, and the sealing ring 52 and the sealing ring 51 are made of rubber materials.

The sealing device 5 comprises a sealing ring 51, a sealing ring 52 is arranged on the left end face of the excircle of the sealing ring 51, a cushion ring 53 is arranged on the right end face of the excircle of the sealing ring 51, a buffer groove 54 is formed in the right side of the sealing ring 51, a shaping ring 55 is arranged on the inner side wall of the buffer groove 54, sealing elements 56 are uniformly arranged on the outer wall of the shaping ring 55 along the circumferential direction of the outer wall, a containing groove 57 is formed in the outer wall of the lower end of the left side of the sealing ring 51, a pull ring 58 is connected in the containing groove 57 in a sliding fit mode, the arc-shaped strip 562 and the shaping ring 55 are made of iron materials, and the iron materials; at specific during operation, tentatively seal through sealing ring 52 and seal groove joint, sealing member 56 and cushion ring 53's cooperation makes sealing device 5 inseparabler with the laminating of bearing inner race 1, increases the leakproofness of bearing, prevents that the pollutant from invading or emollient from leaking outward, simultaneously, the stability of whole sealing device 5 can be guaranteed for the iron material ability to the design ring 55, and then the leakproofness of guarantee whole bearing.

The cushion ring 53 corresponds to the sealing element 56, the cushion ring 53 is made of rubber, and the resilience of the cushion ring 53 is higher than that of the sealing ring 51; during specific work, the rebound resilience of the cushion ring 53 is higher than that of the seal ring 51, so that the cushion ring 53 can be propped to the position attached to the inner wall of the outer ring 1 under the action of the spring to form a sealing layer for lubricant grease, and the sealing performance of the sealing device 5 on the whole bearing is guaranteed.

The sealing element 56 comprises a telescopic rod 561 arranged on the outer wall of the shaping ring 55, an arc-shaped strip 562 is clamped at the upper end of the telescopic rod 561, the arc-shaped strip 562 is attached to the inner wall of the cushion ring 53, a telescopic spring 563 wraps the outer wall of the telescopic rod 561, two ends of the telescopic spring 563 are respectively connected with the arc-shaped strip 562 and the shaping ring 55, the lower end of the arc-shaped strip 562 is connected with a pull rope 564, the pull rope 564 penetrates through the telescopic rod 561 and the shaping ring 55, and the lower end of the pull rope 564; at specific during operation, when needs are dismantled, pull ring 58 is pulled out, and pull ring 58 drives expanding spring 563 and the shrink of telescopic link 561 through stay cord 564 to drive arc strip 562 downstream, make arc strip 562 and cushion ring 53 inner wall separation, the convenient sealing device 5 with the rubber material takes out, and it is simple convenient to dismantle, thereby convenient maintenance or the interpolation lubricant fat to the bearing.

The integral working steps are as follows:

and (3) increasing the sealing property: carry out preliminary sealing through sealing ring 52 and seal groove joint, sealing member 56 and cushion ring 53's cooperation makes sealing device 5 inseparabler with the laminating of bearing inner race 1, increases the leakproofness of bearing, prevents that the pollutant from invading or emollient from leaking outward, and simultaneously, the stability of whole sealing device 5 can be guaranteed for the iron material to the design ring 55, and then the leakproofness of whole sealing device 5 to the bearing of guarantee.

The specific work of increasing the sealing property is: the rebound resilience of the cushion ring 53 is higher than that of the sealing ring 51, so that the cushion ring 53 can be propped to a position attached to the inner wall of the outer ring 1 under the action of the spring to form a sealing layer for lubricant grease, and the sealing performance of the sealing device 5 on the whole bearing is guaranteed;

convenient dismantlement: when needs are dismantled, pull ring 58 is pulled out, and pull ring 58 drives expanding spring 563 and the shrink of telescopic link 561 through stay cord 564 to drive arc 562 and remove downwards, make arc 562 and cushion ring 53 inner wall separation, conveniently take out rubber material's sealing device 5, it is simple convenient to dismantle, thereby convenient maintenance or the interpolation lubricant fat to the bearing.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the technical principle of the present invention, and these improvements and decorations should also be regarded as the protection scope of the present invention.

Claims

1. A bearing for a robot comprises an outer ring (1), an inner ring (2), balls (3), a retainer (4) and sealing devices (5), wherein the outer ring (1) is connected with the inner ring (2) through the retainer (4), the balls (3) are rotationally connected in the retainer (4), the bearing is characterized in that the sealing devices (5) are clamped between the outer ring (1) and the inner ring (2), and the sealing devices (5) are symmetrically arranged on two sides of the retainer (4);

the sealing device (5) comprises a sealing ring (51), a sealing ring (52) is arranged at the left end of the outer circular surface of the sealing ring (51), a cushion ring (53) is arranged at the right end of the outer circular surface of the sealing ring (51), a buffer groove (54) is formed in the right side of the sealing ring (51), a sizing ring (55) is installed on the inner side wall of the buffer groove (54), sealing elements (56) are uniformly arranged on the outer wall of the sizing ring (55) along the circumferential direction of the sizing ring, a containing groove (57) is formed in the outer wall of the lower end of the left side of the sealing ring (51), and a pull ring (58) is;

sealing member (56) is including installing telescopic link (561) at design ring (55) outer wall, telescopic link (561) upper end joint has arc strip (562), arc strip (562) with the laminating of cushion ring (53) inner wall, telescopic link (561) outer wall parcel has expanding spring (563), expanding spring (563) both ends respectively with arc strip (562) with design ring (55) are connected, arc strip (562) lower extreme is connected with stay cord (564), stay cord (564) pass telescopic link (561) with design ring (55), just stay cord (564) lower extreme with pull ring (58) right-hand member is connected.

2. The bearing for a robot as claimed in claim 1, wherein: the inner wall of the outer ring (1) is provided with a sealing groove, the sealing ring (52) is connected with the sealing groove in a clamped mode, and the sealing ring (52) and the sealing ring (51) are made of rubber materials.

3. The bearing for a robot as claimed in claim 1, wherein: the cushion ring (53) corresponds to the sealing element (56), the cushion ring (53) is made of rubber, and the rebound resilience of the cushion ring (53) is higher than that of the sealing ring (51).

4. The bearing for a robot as claimed in claim 1, wherein: the arc-shaped strips (562) and the shaping ring (55) are made of iron materials.