Robot lower limb joint bearing with dustproof protection function

Abstract

The utility model discloses a robot lower limb joint bearing with dustproof protection, which relates to the technical field of bearings and comprises a bearing main body, sealing mechanisms and reinforcing mechanisms, the sealing mechanisms are arranged on two sides of the bearing main body and used for preventing the inside of the bearing main body from contacting with the outside, and the reinforcing mechanisms are arranged inside the sealing mechanisms and used for reinforcing the inside of the bearing main body. The reinforcing mechanism is used for preventing the sealing mechanism from deforming. The two sides of the bearing main body are sealed through the sealing mechanism, so that external dust is prevented from entering the bearing main body, the protection capability of the bearing main body is improved, the strength of the sealing mechanism can be improved through the arrangement of the reinforcing mechanism, the sealing mechanism can be prevented from being deformed during installation or stress, and the service life of the bearing is prolonged. And good contact between the sealing mechanism and the bearing main body is ensured, so that the sealing mechanism can keep the shape when the bearing vibrates, impacts and changes the temperature, and the use stability of the sealing mechanism is improved.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a bearing for robot lower limb joints with dust protection. Background Technology

[0002] In the fields of modern industrial robots, service robots, and special robots, the reliability and durability of lower limb joint bearings directly affect the robot's motion accuracy, load capacity, and service life.

[0003] Since lower limb joints are frequently subjected to impacts, vibrations, and complex environments (such as dust, humidity, high and low temperatures), the sealing performance of bearings is crucial. However, current dustproof designs for bearings typically use single-layer rubber seals. Due to the relatively soft nature of rubber, the seal ring is prone to deformation during installation and under stress, resulting in loss of sealing effectiveness and reduced stability. Therefore, we propose a high-stability bearing for robot lower limb joints with dustproof protection. Utility Model Content

[0004] The purpose of this invention is to provide a bearing for the lower limb joints of a robot with dust protection, so as to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bearing for a robot lower limb joint with dust protection, comprising:

[0006] Bearing body;

[0007] A sealing mechanism is provided on both sides of the bearing body, and the sealing mechanism is used to prevent the inside of the bearing body from contacting the outside.

[0008] A reinforcing mechanism is provided inside the sealing mechanism to prevent deformation of the sealing mechanism.

[0009] Preferably, the bearing body comprises:

[0010] Bearing outer ring;

[0011] The bearing inner ring, wherein the bearing outer ring is disposed inside the bearing outer ring;

[0012] A plurality of balls are disposed between the outer ring and the inner ring of the bearing. The inner wall of the outer ring of the bearing has a first annular groove, and the outer wall of the balls is fitted to the inner wall of the first annular groove. The outer wall of the inner ring of the bearing has a second annular groove, and the outer wall of the balls is fitted to the inner wall of the second annular groove. A retaining mechanism is provided between the outer ring and the inner ring of the bearing.

[0013] Preferably, the retaining mechanism includes:

[0014] A cage, the cage being symmetrically arranged on both sides of the rolling ball;

[0015] The socket is located on one side of the retainer, and an anchor is inserted between the inner walls of two adjacent sockets.

[0016] Preferably, the sealing mechanism includes:

[0017] A sealing cover is disposed between the outer ring and the inner ring of the bearing, and the reinforcing mechanism is disposed inside the sealing cover;

[0018] The first sealing lip is disposed on the outer wall of the sealing cover, and the inner wall of the outer ring of the bearing is provided with a first slot, and the first sealing lip is engaged in the inner wall of the first slot.

[0019] The second sealing lip is disposed on the inner wall of the sealing cover, and the outer wall of the bearing inner ring is provided with a second groove, and the second sealing lip is engaged with the inner wall of the second groove.

[0020] Preferably, the reinforcing mechanism includes a metal ring, and a connecting ring is fixedly connected to the side of the metal ring. The metal ring, the connecting ring, and the sealing cap are integrally formed, and a plurality of openings are spaced apart on one side of the metal ring.

[0021] Preferably, a first arc-shaped guide groove is provided on both sides of the outer wall of the bearing outer ring, and a second arc-shaped guide groove is provided on both sides of the inner wall of the bearing inner ring.

[0022] The technical effects and advantages of this utility model are as follows:

[0023] This invention seals both sides of the bearing body through a sealing mechanism, thereby preventing external dust from entering the bearing body and improving the protection of the bearing body. By strengthening the mechanism, the strength of the sealing mechanism can be increased, preventing deformation during installation or under stress, ensuring good contact between the sealing mechanism and the bearing body, and allowing the sealing mechanism to maintain its shape when the bearing is subjected to vibration, impact, and temperature changes, thus improving the stability of the sealing mechanism in use. Attached Figure Description

[0024] Figure 1 This is a front cross-sectional view of the present invention.

[0025] Figure 2 This utility model Figure 1 A magnified schematic diagram of the structure at point A.

[0026] In the diagram: 101, bearing outer ring; 102, bearing inner ring; 103, ball; 104, first annular groove; 105, second annular groove; 201, sealing cap; 301, first retaining groove; 302, first sealing lip; 401, second retaining groove; 402, second sealing lip; 501, metal ring; 502, connecting ring; 503, opening; 601, cage; 602, insertion hole; 603, anchor pin; 701, first arc-shaped guide groove; 702, second arc-shaped guide groove. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] This utility model provides, for example Figures 1-2 The illustrated bearing for a robot's lower limb joint with dust protection includes a bearing body, a sealing mechanism, and a reinforcing mechanism. The sealing mechanism is located on both sides of the bearing body and serves to prevent the interior of the bearing body from contacting the outside environment. The reinforcing mechanism is located inside the sealing mechanism and serves to prevent deformation of the sealing mechanism. By sealing both sides of the bearing body through the sealing mechanism, external dust is prevented from entering the interior of the bearing body, thereby improving the protection capability of the bearing body. The addition of the reinforcing mechanism increases the strength of the sealing mechanism, preventing deformation of the sealing mechanism during installation or under stress, ensuring good contact between the sealing mechanism and the bearing body, and allowing the sealing mechanism to maintain its shape under vibration, impact, and temperature changes, thereby improving the stability of the sealing mechanism in use.

[0029] The bearing body includes an outer ring 101, an inner ring 102, and balls 103. The outer ring 101 is located inside the inner ring 102, and multiple balls 103 are located between the outer ring 101 and the inner ring 102. The inner wall of the outer ring 101 has a first annular groove 104, and the outer wall of the balls 103 fits against the inner wall of the first annular groove 104. The outer wall of the inner ring 102 has a second annular groove 105, and the outer wall of the balls 103 fits against the inner wall of the second annular groove 105. A retaining mechanism is provided between the outer ring 101 and the inner ring 102. The outer ring 101 is generally directly installed in the mounting hole at the knee of the robot's thigh, and the connecting shaft at the knee of the robot's lower leg is directly inserted into the inner ring 102, so that the output shaft can rotate stably. At the same time, the arrangement of the balls 103 reduces the friction when the output shaft rotates, allowing the robot's lower leg to bend smoothly.

[0030] The retaining mechanism includes a retainer 601 and a socket 602. The retainer 601 is symmetrically arranged on both sides of the ball 103, and the socket 602 is opened on one side of the retainer 601. Anchor pins 603 are inserted between the inner walls of two adjacent sockets 602. The retainer 601 can prevent the balls 103 from colliding or rubbing against each other during operation. At the same time, the arrangement of the retainer 601 makes the balls 103 evenly distributed in the bearing, avoiding local stress concentration.

[0031] The sealing mechanism includes a sealing cover 201, a first sealing lip 302, and a second sealing lip 402. The sealing cover 201 is disposed between the outer ring 101 and the inner ring 102 of the bearing. A reinforcing mechanism is disposed inside the sealing cover 201. The first sealing lip 302 is disposed on the outer wall of the sealing cover 201. A first groove 301 is formed on the inner wall of the outer ring 101 of the bearing, and the first sealing lip 302 is engaged with the inner wall of the first groove 301. The second sealing lip 402 is disposed on the inner wall of the sealing cover 201. The outer wall of the bearing inner ring 102 is provided with a second groove 401, and the second sealing lip 402 is engaged in the inner wall of the second groove 401. By having the first sealing lip 302 engaged in the first groove 301 and the second sealing lip 402 engaged in the second groove 401, the sealing cover 201 can be engaged between the bearing outer ring 101 and the bearing inner ring 102. Thus, the bearing interior is sealed by the two sealing covers 201, preventing external dust from contacting the rolling balls 103, thereby ensuring the smooth operation of the bearing.

[0032] The reinforcing mechanism includes a metal ring 501, with a connecting ring 502 fixedly connected to its side. The metal ring 501, connecting ring 502, and sealing cover 201 are integrally formed. Multiple openings 503 are spaced apart on one side of the metal ring 501. The metal ring 501 prevents the sealing cover 201 from deforming during installation or under stress, ensuring the stable operation of the sealing cover 201. At the same time, the fixed connecting ring 502 increases the anchoring effect of the reinforcing mechanism within the sealing cover 201. Furthermore, the openings 503 allow the material of the sealing cover 201 to fill the openings 503 when the outer wall of the reinforcing mechanism is formed, thereby increasing the connection strength between the sealing cover 201 and the reinforcing mechanism. This makes the sealing cover 201 less likely to detach from the outer wall of the reinforcing mechanism, thus improving the stability of the reinforcing mechanism.

[0033] The outer ring 101 of the bearing has a first arc-shaped guide groove 701 on both sides of its outer wall, and the inner ring 102 of the bearing has a second arc-shaped guide groove 702 on both sides of its inner wall. The first arc-shaped guide groove 701 and the second arc-shaped guide groove 702 facilitate the insertion of the first arc-shaped guide groove 701 into the mounting hole and the insertion of the connecting shaft into the inner ring 102 of the bearing.

[0034] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A bearing for a robot lower leg joint with dust protection, characterized in that The application relates to a bearing assembly. The bearing assembly comprises: a bearing body; a sealing mechanism arranged on both sides of the bearing body, which is used for blocking the inside of the bearing body from contacting the outside; 2. The robot lower leg joint bearing with dustproof protection according to claim 1, characterized in that, a reinforcing mechanism arranged in the sealing mechanism, which is used for preventing the sealing mechanism from being deformed. The bearing body comprises: a bearing outer ring (101); a bearing inner ring (102) arranged in the bearing outer ring (101); 3. The robot lower leg joint bearing with dustproof protection according to claim 2, characterized in that, a plurality of rolling balls (103) arranged between the bearing outer ring (101) and the bearing inner ring (102), a first annular groove (104) is formed in the inner wall of the bearing outer ring (101), the outer wall of the rolling ball (103) is arranged in abutment with the inner wall of the first annular groove (104), a second annular groove (105) is formed in the outer wall of the bearing inner ring (102), the outer wall of the rolling ball (103) is arranged in abutment with the inner wall of the second annular groove (105), and a retaining mechanism is arranged between the bearing outer ring (101) and the bearing inner ring (102). The retaining mechanism comprises: a retainer (601) symmetrically arranged on both sides of the rolling ball (103); 4. The robot lower leg joint bearing with dustproof protection according to claim 2, characterized in that, a bushing (602) formed in one side of the retainer (601), and an anchor nail (603) is arranged between the inner walls of two adjacent bushings (602). The sealing mechanism comprises: a sealing cover (201) arranged between the bearing outer ring (101) and the bearing inner ring (102), and the reinforcing mechanism is arranged in the sealing cover (201); a first sealing lip (302) arranged on the outer wall of the sealing cover (201), a first clamping groove (301) is formed in the inner wall of the bearing outer ring (101), and the first sealing lip (302) is clamped on the inner wall of the first clamping groove (301); 5. The robot lower leg joint bearing with dustproof protection according to claim 4, characterized in that, a second sealing lip (402) arranged on the inner wall of the sealing cover (201), a second clamping groove (401) is formed in the outer wall of the bearing inner ring (102), and the second sealing lip (402) is clamped on the inner wall of the second clamping groove (401).

6. The robot lower leg joint bearing with dustproof protection according to claim 2, characterized in that, The reinforcing mechanism comprises a metal ring (501), a connecting ring (502) fixedly connected to the side of the metal ring (501), the metal ring (501), the connecting ring (502) and the sealing cover (201) are integrally arranged, and a plurality of openings (503) are formed in the side of the metal ring (501). First arc-shaped guide grooves (701) are formed in the outer walls of the bearing outer ring (101), and second arc-shaped guide grooves (702) are formed in the inner walls of the bearing inner ring (102).

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