Novel crossed roller bearing

Abstract

The utility model relates to the technical field of bearings, and discloses a novel crossed roller bearing which comprises an inner ring, two outer rings are arranged on the outer side of the inner ring up and down, and roller paths are arranged on the lower portion of the inner side wall of the outer ring close to the upper portion, the upper portion of the inner side wall of the outer ring close to the lower portion and the center of the outer side wall of the inner ring. A groove is formed in the inner side wall of the second roller on the inner side of the outer ring, a heat conduction seat is arranged in the groove, a plurality of bolts are arranged on the upper end face of the outer ring at the upper end of the heat conduction seat, and the bolts penetrate through the upper end face of the outer ring and the upper end face of the heat conduction seat correspondingly to the lower end of the heat conduction seat; and the end parts are in threaded connection with the upper end surface of the outer ring close to the lower part. According to the utility model, heat on the first roller and the second roller can be directly transferred to the heat conducting seat through the heat conducting seat, and then is conducted to the surface through the bolt made of the high-heat-conductivity metal material, so that the heat on the first roller and the second roller can be directly conducted conveniently.

Description

Technical Field

[0001] This utility model relates to the field of bearing technology, and in particular to a novel crossed roller bearing. Background Technology

[0002] Bearings are an indispensable component in modern machinery, widely used in various mechanical equipment to support rotating shafts and reduce friction, thereby ensuring the normal operation of the machinery. Crossed roller bearings are a type of high-precision, high-rigidity rolling bearing, widely used in applications requiring high-precision rotation and load-bearing capacity. Their unique design enables them to provide excellent performance within a limited space. The rollers of a crossed roller bearing are arranged at a 90-degree angle between the inner and outer rings. This design allows the rollers to withstand loads from multiple directions simultaneously, including radial loads, axial loads, and overturning moments.

[0003] There are still some problems in the use of existing crossed roller bearings. Current crossed roller bearings rely on heat dissipation holes for heat dissipation, but the air flow inside the heat dissipation holes is not good, and the heat on the rollers cannot be directly dissipated. Therefore, those skilled in the art have provided a new type of crossed roller bearing to solve the problems mentioned in the background art. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a novel crossed roller bearing. The heat is directly transferred from the first and second rollers to the heat-conducting seat through a heat-conducting base, and then discharged to the surface through bolts made of high thermal conductivity metal material, which facilitates the direct discharge of heat from the first and second rollers.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A novel crossed roller bearing includes an inner ring, with two outer rings arranged vertically on the outer side of the inner ring. Raceways are provided at the lower part of the inner sidewall of the upper outer ring, the upper part of the inner sidewall of the lower outer ring, and the center of the outer sidewall of the inner ring. A groove is provided on the inner sidewall of the second roller on the inner side of the outer ring. A heat-conducting seat is provided inside the groove. Multiple bolts are provided on the upper end face of the outer ring near the upper end of the heat-conducting seat. The multiple bolts pass through the upper end face of the upper outer ring and the upper end face of the heat-conducting seat and extend to the lower end of the heat-conducting seat, and their ends are threaded to the upper end face of the lower outer ring.

[0006] Both the upper part and the lower part of the inner sidewall of the outer ring are provided with mounting grooves, and both mounting grooves are provided with sealing elements.

[0007] Through the above technical solution, the heat on the first and second rollers can be directly transferred to the heat-conducting seat by the heat-conducting seat, and then the heat is discharged to the surface by bolts made of high thermal conductivity metal material, which facilitates the direct discharge of heat on the first and second rollers.

[0008] Furthermore, the three raceways are provided with multiple retainers, and multiple first rollers and second rollers are arranged intersectingly between the multiple retainers;

[0009] The above technical solution facilitates rolling support through multiple first rollers and second rollers.

[0010] Furthermore, taking the seal at the upper part as an example, the seal includes a mounting block, the mounting block is slidably connected inside the mounting groove, a connecting ring is fixedly connected at the center of the inner sidewall of the mounting block, the connecting ring passes through the mounting groove and extends to the inner side of the outer ring, and a sealing ring is fixedly connected to the lower end face of the connecting ring near the inner ring.

[0011] With the above technical solution, the sealing ring is tilted on the inner ring. During the wear process, the tilt angle is gradually reduced until the angle between the sealing ring and the connecting ring is 90 degrees before replacement. This can adaptively adjust its contact state, thereby extending its effective service life.

[0012] Furthermore, the two seals are symmetrically arranged with their outer rings touching each other on their upper and lower ends;

[0013] The above technical solution allows for simultaneous sealing of the inner ring by both sealing elements.

[0014] Furthermore, all of the bolts are made of thermally conductive metal.

[0015] The above technical solution facilitates the transfer of heat from the heat-conducting base to the outside.

[0016] Furthermore, the sealing element is made of wear-resistant rubber;

[0017] The above technical solutions increase the service life of the seals.

[0018] Furthermore, the upper surface of the inner ring is provided with multiple heat dissipation holes;

[0019] The above technical solution helps to dissipate heat from the inner ring.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, the novel crossed roller bearing can directly transfer the heat from the first roller and the second roller to the heat-conducting seat through the heat-conducting seat, and then conduct the heat to the surface through bolts made of high thermal conductivity metal material, which facilitates the direct conduction of heat from the first roller and the second roller.

[0022] 2. In this utility model, during use, the sealing element is installed inside the two mounting grooves by the mounting block. The two sealing rings are pressed and adhered to the upper and lower end faces of the inner ring by the inner ring. During use, the sealing rings will wear after being rubbed. Since the sealing rings are tilted on the inner ring, the tilt angle is gradually reduced during the wear process until the included angle between the sealing ring and the connecting ring is 90 degrees, at which point they are replaced. This allows for adaptive adjustment of the contact state, thereby extending its effective service life. Attached Figure Description

[0023] Figure 1 This is a perspective view of a novel crossed roller bearing proposed in this utility model;

[0024] Figure 2 This is a three-dimensional exploded view of a novel crossed roller bearing proposed in this utility model;

[0025] Figure 3 This is a three-dimensional sectional view of a novel crossed roller bearing proposed in this utility model;

[0026] Figure 4 This is a three-dimensional sectional view of a novel crossed roller bearing seal proposed in this utility model.

[0027] Legend:

[0028] 1. Inner ring; 2. Seal; 3. Outer ring; 4. Bolt; 5. Raceway; 6. Cage; 7. First roller; 8. Second roller; 9. Heat-conducting seat; 10. Groove; 11. Mounting slot;

[0029] 201. Mounting block; 202. Connecting ring; 203. Sealing ring. Detailed Implementation

[0030] 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.

[0031] Reference Figure 1-4This utility model provides an embodiment of a novel crossed roller bearing, comprising an inner ring 1, with two outer rings 3 arranged vertically on the outer side of the inner ring 1. Raceways 5 are provided at the lower inner sidewall of the upper outer ring 3, the upper inner sidewall of the lower outer ring 3, and the center of the outer sidewall of the inner ring 1. A groove 10 is provided on the inner sidewall of the second roller 8 inside the outer ring 3. A heat-conducting seat 9 is provided inside the groove 10. Multiple bolts 4 are provided on the upper surface of the outer ring 3 near the upper end of the heat-conducting seat 9. The bolts 4 pass through the upper surface of the upper outer ring 3 and the upper surface of the heat-conducting seat 9, respectively, and extend to the lower end of the heat-conducting seat 9. The ends of the bolts 4 are threaded onto the upper surface of the lower outer ring 3. The heat from the first roller 7 and the second roller 8 can be directly transferred to the heat-conducting seat 9 through the heat-conducting seat 9, and then discharged to the surface through the bolts 4 made of high thermal conductivity metal, facilitating the direct discharge of heat from the first roller 7 and the second roller 8.

[0032] Mounting grooves 11 are provided on the upper part of the inner wall of the outer ring 3 and the lower part of the inner wall of the outer ring 3. Both mounting grooves 11 are provided with sealing elements 2, which fill the gap between the inner ring 1 and the outer ring 3.

[0033] like Figure 2 and 3 As shown, the three raceways 5 are provided with multiple retainers 6, and multiple first rollers 7 and second rollers 8 are arranged intersectingly between the multiple retainers 6, so as to provide rolling support through the multiple first rollers 7 and second rollers 8.

[0034] like Figure 1 , 2 As shown in Figures 3 and 4, taking the upper sealing element 2 as an example, the sealing element 2 includes a mounting block 201, which is slidably connected inside the mounting groove 11. A connecting ring 202 is fixedly connected to the center of the inner side wall of the mounting block 201. The connecting ring 202 passes through the mounting groove 11 and extends to the inner side of the outer ring 3. A sealing ring 203 is fixedly connected to the lower end face of the connecting ring 202 near the inner ring 1. The sealing ring 203 is inclined on the inner ring 1. During the wear process, the angle of inclination is gradually reduced until the angle between the sealing ring 203 and the connecting ring 202 reaches 90 degrees, at which point it is replaced. This allows for adaptive adjustment of its contact state, thereby extending its effective service life.

[0035] The two seals 2 are symmetrically arranged on the upper and lower ends of the two outer rings 3, which makes it easy for the two seals 2 to seal the inner ring 1 at the same time.

[0036] The multiple bolts 4 are all made of thermally conductive metal, which facilitates the transfer of heat from the heat-conducting base 9 to the outside.

[0037] The material of seal 2 is wear-resistant rubber, which increases the service life of seal 2.

[0038] Multiple heat dissipation holes are provided on the upper surface of the inner ring 1 to help dissipate heat.

[0039] Working principle: The heat from the first roller 7 and the second roller 8 can be directly transferred to the heat-conducting seat 9, and then discharged to the surface through the bolts 4 made of high thermal conductivity metal material. This facilitates the direct discharge of heat from the first roller 7 and the second roller 8. In use, the sealing element 2 is installed inside the two mounting grooves 11 through the mounting block 201. The two sealing rings 203 are pressed and adhered to the upper and lower end faces of the inner ring 1 by the inner ring 1. During use, the sealing rings 203 will wear after being rubbed. Since the sealing rings 203 are tilted on the inner ring 1, the tilt angle is gradually reduced during the wear process until the included angle between the sealing rings 203 and the connecting rings 202 reaches 90 degrees, at which point they are replaced. This allows for adaptive adjustment of the contact state, thereby extending its effective service life.

[0040] 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 new cross-roller bearing comprising an inner ring (1), characterized in that: Two outer rings (3) are arranged vertically on the outer side of the inner ring (1). The outer ring (3) at the upper part near the lower inner side wall and the outer ring (3) at the upper inner side wall and the center of the outer side wall of the inner ring (1) are both provided with raceways (5). The inner side wall of the second roller (8) on the inner side of the outer ring (3) is provided with a groove (10). A heat-conducting seat (9) is provided inside the groove (10). Multiple bolts (4) are provided on the upper surface of the outer ring (3) at the upper end of the heat-conducting seat (9). The multiple bolts (4) pass through the upper surface of the outer ring (3) at the upper end and the upper surface of the heat-conducting seat (9) respectively and reach the lower end of the heat-conducting seat (9). The ends are all threaded to the upper surface of the outer ring (3) at the lower end. Mounting grooves (11) are provided on the upper part of the inner wall of the outer ring (3) and the lower part of the inner wall of the outer ring (3), and sealing elements (2) are provided inside the two mounting grooves (11).

2. A novel cross-roller bearing according to claim 1, characterized in that: The three raceways (5) are provided with multiple retainers (6), and multiple first rollers (7) and second rollers (8) are arranged intersectingly between the multiple retainers (6).

3. A novel cross-roller bearing according to claim 1, characterized in that: Taking the seal (2) at the top as an example, the seal (2) includes a mounting block (201), which is slidably connected inside the mounting groove (11). A connecting ring (202) is fixedly connected at the center of the inner side wall of the mounting block (201). The connecting ring (202) passes through the mounting groove (11) and extends to the inner side of the outer ring (3). A sealing ring (203) is fixedly connected to the lower end face of the connecting ring (202) near the inner ring (1).

4. A novel cross-roller bearing according to claim 1, characterized in that: The two seals (2) are symmetrically arranged on the upper and lower ends of the two outer rings (3) that fit together.

5. A novel cross-roller bearing according to claim 1, characterized in that: All of the bolts (4) are made of thermally conductive metal.

6. A novel cross-roller bearing according to claim 1, characterized in that: The material of the seal (2) is wear-resistant rubber.

7. A novel cross-roller bearing according to claim 1, characterized in that: The upper surface of the inner ring (1) is provided with multiple heat dissipation holes.

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