CN210500341U

CN210500341U - Sealing structure and robot with same

Info

Publication number: CN210500341U
Application number: CN201921179049.2U
Authority: CN
Inventors: 董泽锋; 文辉; 张天翼; 张志波; 朱荣佳
Original assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Current assignee: Gree Electric Appliances Inc of Zhuhai; Zhuhai Gree Intelligent Equipment Co Ltd
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-05-12
Anticipated expiration: 2029-07-24

Abstract

The utility model provides a seal structure and have its robot, seal structure includes: the sealing ring comprises a ring body, wherein a first annular groove is formed in the inner wall of the ring body, a second annular groove is formed in the outer wall of the ring body, the first annular groove and the second annular groove are arranged at intervals in the axial direction of the ring body, the first annular groove is used for placing a first sealing ring, and the second annular groove is used for placing a second sealing ring; the fixed block is arranged on the ring body and used for being connected with the to-be-sealed structure. Because the structure of this seal structure is simple, consequently low in manufacturing cost, moreover, owing to use with yielding sealing washer cooperation, use less power alright assemble the ring body to wait in the seal structure, even inhomogeneous the also can realize the assembly to the force of seal structure in the in-process of assembly. Therefore, the seal structure is easy to assemble and low in cost. The sealing structure is applied to sealing between the base and the mechanical arm of the robot, and compared with a skeleton oil seal, the sealing structure can reduce the assembly difficulty and reduce the cost.

Description

Sealing structure and robot with same

Technical Field

The utility model relates to a robotechnology field particularly, relates to a seal structure and have its robot.

Background

In some robots, be provided with rotatable arm on the base, need seal between arm and base, adopt skeleton oil blanket structure to seal usually between current arm and the base, the skeleton oil blanket need use specialized tool to beat into sealed position when the assembly, skeleton oil blanket intensity is great, with by seal structure for interference fit, this needs great power just can assemble, and need even atress, otherwise damage easily, especially need sealed position space between arm and the base little, more inconvenient assembly operation who carries out the skeleton oil blanket. And the framework oil seal is expensive, and the cost of the robot is increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a seal structure and have its robot to seal structure between the base of robot and the arm is difficult to assemble and problem with high costs among the solution prior art.

In order to solve the above problem, according to the utility model discloses an aspect, the utility model provides a seal structure, include: the sealing ring comprises a ring body, wherein a first annular groove is formed in the inner wall of the ring body, a second annular groove is formed in the outer wall of the ring body, the first annular groove and the second annular groove are arranged at intervals in the axial direction of the ring body, the first annular groove is used for placing a first sealing ring, and the second annular groove is used for placing a second sealing ring; the fixed block is arranged on the ring body and used for being connected with the to-be-sealed structure.

Further, the size of the first annular groove in the axial direction of the ring body is larger than the size of the second annular groove in the axial direction of the ring body, and the size of the first annular groove in the radial direction of the ring body is larger than the size of the second annular groove in the radial direction of the ring body.

Furthermore, the fixed block is arranged at one end of the ring body, and one part of the fixed block protrudes out of the outer wall of the ring body along the radial direction of the ring body.

Further, the fixed block is plate structure, and the fixed block includes interconnect's first plate body and second plate body, and wherein, the first plate body is connected with the terminal surface of ring body, and the second plate body is along the radial protrusion in the outer wall of ring body, and the second plate body is used for with treating that seal structure is connected.

Further, the fixed block has a connecting hole for setting a fastener to connect the fixed block with the structure to be sealed.

Further, the ring body is arranged in penetrating the hole of treating seal structure, the terminal surface of fixed block be used for with treat the spacing cooperation of seal structure's terminal surface, the fixed block has the withdrawal hole, the withdrawal hole has the internal thread, the withdrawal hole is used for the wrong work piece that has the external screw thread to dismantle the ring body that penetrates in treating seal structure.

Furthermore, the fixed block is a plurality of, and a plurality of fixed blocks interval sets up on the ring body.

Furthermore, the ring body and the fixing block are of an integrated structure.

Further, the seal structure further includes: the first sealing ring is arranged in the first annular groove; and the second sealing ring is arranged in the second annular groove.

According to the utility model discloses an on the other hand provides a robot, and the robot includes base, arm and seal structure, and the arm rotatably sets up on the base, and seal structure is the above-mentioned seal structure that provides, and seal structure sets up between base and arm in order to seal.

Further, the base includes first pedestal and the barrel of setting on first pedestal, and the arm includes the second pedestal and sets up the swinging boom on the second pedestal, and the second pedestal rotationally sets up on first pedestal, has the pilot hole on the second pedestal, and during the barrel was worn to establish in the pilot hole, the ring body setting of seal structure was between the outer wall of the inner wall of pilot hole and barrel, and the fixed block is connected with the second pedestal.

Further, the second pedestal includes first structure and second structure, and the second structure protrusion sets up on first structure, and first structure has the pilot hole, and the second structure has dodges the hole, dodges hole and pilot hole intercommunication, and first structure rotationally sets up on first pedestal, and the swinging boom rotatably sets up on the second structure.

Use the technical scheme of the utility model, a seal structure is provided with ring body and fixed block in seal structure, and first ring channel on the inner wall of ring body is used for placing first sealing washer, and the second ring channel on the outer wall of ring body is used for placing the second sealing washer, assembles the ring body like this to treat seal structure to with the sealing washer cooperation, alright seal in order to seal, moreover, through setting up the fixed block, can with seal structure with treat that seal structure is reliably connected. Because the structure of this seal structure is simple, consequently low in manufacturing cost, moreover, owing to use with yielding sealing washer cooperation, use less power alright assemble the ring body to wait in the seal structure, even inhomogeneous the also can realize the assembly to the force of seal structure in the in-process of assembly. Therefore, the seal structure is easy to assemble and low in cost. The sealing structure is applied to sealing between the base and the mechanical arm of the robot, and compared with a skeleton oil seal, the sealing structure can reduce the assembly difficulty and reduce the cost.

Drawings

The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows a schematic view of a sealing structure provided by an embodiment of the present invention;

FIG. 2 shows a cross-sectional view of the seal structure of FIG. 1;

fig. 3 shows a schematic view of a robot provided by an embodiment of the present invention;

fig. 4 shows a cross-sectional view of the robot in fig. 3.

Wherein the figures include the following reference numerals:

10. a ring body; 11. a first annular groove; 12. a second annular groove; 20. a fixed block; 21. connecting holes; 22. withdrawing the hole; 31. a first seal ring; 32. a second seal ring; 40. a base; 41. a first seat body; 42. a barrel; 50. a mechanical arm; 51. a second seat body; 511. a first structure; 512. a second structure; 513. avoiding holes; 52. rotating the arm.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

As shown in fig. 1-2, an embodiment of the present invention provides a sealing structure, including: the sealing ring comprises a ring body 10, wherein a first annular groove 11 is formed in the inner wall of the ring body 10, a second annular groove 12 is formed in the outer wall of the ring body 10, the first annular groove 11 and the second annular groove 12 are arranged in the axial direction of the ring body 10 at intervals, the first annular groove 11 is used for placing a first sealing ring 31, and the second annular groove 12 is used for placing a second sealing ring 32; and the fixing block 20 is arranged on the ring body 10, and the fixing block 20 is used for being connected with a structure to be sealed.

The technical scheme of this embodiment is used, a sealing structure is provided, ring body 10 and fixed block 20 are arranged in the sealing structure, first ring groove 11 on the inner wall of ring body 10 is used for placing first sealing ring 31, second ring groove 12 on the outer wall of ring body 10 is used for placing second sealing ring 32, so that ring body 10 is assembled in the sealing structure to be sealed, and is matched with the sealing ring, so that sealing can be performed, and moreover, by arranging fixed block 20, the sealing structure and the sealing structure to be sealed can be reliably connected. The sealing structure has simple structure and low manufacturing cost, and can be assembled into a structure to be sealed by using small force due to the matching of the sealing structure and the easily-deformed sealing ring, and the assembly can be realized even if the force applied to the sealing structure in the assembly process is uneven. Therefore, the seal structure is easy to assemble and low in cost. The sealing structure is applied between the base 40 and the mechanical arm 50 of the robot for sealing, and compared with a skeleton oil seal, the sealing structure can reduce the assembly difficulty and reduce the cost.

In the present embodiment, the dimension of the first annular groove 11 in the axial direction of the ring body 10 is larger than the dimension of the second annular groove 12 in the axial direction of the ring body 10, and the dimension of the first annular groove 11 in the radial direction of the ring body 10 is larger than the dimension of the second annular groove 12 in the radial direction of the ring body 10. The cross-sectional dimensions of the seal ring that can be placed in the first annular groove 11 are thus greater than the cross-sectional dimensions of the seal ring that can be placed in the second annular groove 12, so that a good seal can be achieved against the parts that rotate within the ring body 10.

In this embodiment, the fixing block 20 is disposed at one end of the ring body 10, and a portion of the fixing block 20 protrudes from the outer wall of the ring body 10 along the radial direction of the ring body 10. Through the above arrangement, the fixing block 20 is conveniently connected with the structure to be sealed in a matching manner.

Specifically, in this embodiment, the fixed block 20 is a plate-shaped structure, and the fixed block 20 includes a first plate and a second plate that are connected to each other, where the first plate is connected to the end surface of the ring body 10, the second plate protrudes out of the outer wall of the ring body 10 along the radial direction of the ring body 10, and the second plate is used for being connected to the structure to be sealed. The fixing block 20 is provided in a plate-shaped structure, which may facilitate processing. The second plate body is convenient to connect with the sealing structure to be sealed and is in limit fit with the sealing structure to be sealed.

As shown in fig. 1, the fixing block 20 has a coupling hole 21, and the coupling hole 21 is used to provide a fastener to couple the fixing block 20 with a structure to be sealed. This enables the fixing of the fixing block 20 to be achieved in a simple manner. The fasteners may be screws or pins.

In this embodiment, the ring body 10 is used for penetrating into the hole of waiting to seal the structure, the terminal surface of fixed block 20 is used for with waiting to seal the spacing cooperation of terminal surface of structure, fixed block 20 has withdrawal hole 22, withdrawal hole 22 has the internal thread, withdrawal hole 22 is used for screwing in the work piece that has the external thread to dismantle the ring body 10 that penetrates in waiting to seal the structure. The disassembly of the seal structure is conveniently achieved by providing the withdrawal holes 22. Specifically, the workpiece having the external thread may be a bolt which is screwed into the withdrawal hole 22 and abuts against the end face of the structure to be sealed, and the seal structure may be ejected by rotating the bolt.

In this embodiment, the fixing block 20 is provided in plurality, and the fixing blocks 20 are disposed on the ring body 10 at intervals. This can improve the strength of connection of the seal structure to other components. Specifically, two fixing blocks 20, two withdrawal holes 22 and 180 degrees are provided, and two connection holes 21 and 180 degrees are provided, so that the ring body 10 is balanced in stress and reliable in connection.

In this embodiment, the ring body 10 and the fixing block 20 are an integral structure. Therefore, the processing is convenient, and the strength of the sealing structure can be improved.

In this embodiment, the seal structure further includes: a first seal ring 31 disposed in the first annular groove 11; and a second seal ring 32 disposed in the second annular groove 12. The mating parts inside the ring body 10 can be sealed by a first sealing ring 31 and the mating parts outside the ring body 10 can be sealed by a second sealing ring 32.

As shown in fig. 3 and 4, another embodiment of the present invention provides a robot, which includes a base 40, a mechanical arm 50, and a sealing structure, wherein the mechanical arm 50 is rotatably disposed on the base 40, the sealing structure is the above-mentioned sealing structure, and the sealing structure is disposed between the base 40 and the mechanical arm 50 for sealing. The sealing structure has simple structure and low manufacturing cost, and can be assembled into a structure to be sealed by using small force due to the matching of the sealing structure and the easily-deformed sealing ring, and the assembly can be realized even if the force applied to the sealing structure in the assembly process is uneven. Therefore, the seal structure is easy to assemble and low in cost. The sealing structure is adopted between the base 40 and the mechanical arm 50 of the robot for sealing, and compared with a skeleton oil seal, the assembly difficulty can be reduced, and the cost can be reduced.

Specifically, the pedestal 40 includes a first seat 41 and a barrel 42 disposed on the first seat 41, the mechanical arm 50 includes a second seat 51 and a rotating arm 52 disposed on the second seat 51, the second seat 51 is rotatably disposed on the first seat 41, the second seat 51 has an assembly hole, the barrel 42 is disposed in the assembly hole in a penetrating manner, the ring body 10 of the sealing structure is disposed between an inner wall of the assembly hole and an outer wall of the barrel 42, and the fixing block 20 is connected with the second seat 51. Thus, the second housing 51 and the cylinder 42 can be sealed by the sealing structure.

Further, the second housing 51 includes a first structure 511 and a second structure 512, the second structure 512 is disposed on the first structure 511 in a protruding manner, the first structure 511 has an assembly hole, the second structure 512 has a avoiding hole 513, the avoiding hole 513 is communicated with the assembly hole, the first structure 511 is rotatably disposed on the first housing 41, and the rotating arm 52 is rotatably disposed on the second structure 512. In assembling and disassembling the seal structure, an operation is performed at the position of the escape hole 513. Although the avoidance hole 513 exists, there may be a problem that the space is narrow and the operation is not easy. The sealing structure has simple structure and low manufacturing cost, and can be used together with the easily-deformed sealing ring to assemble the ring body 10 into the assembly hole with small force, so that the assembly can be realized even if the force applied to the sealing structure is uneven in the assembly process. Therefore, the technical scheme can facilitate the assembly and maintenance of the robot and reduce the manufacturing cost of the robot.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A sealing structure, comprising:

the sealing ring comprises a ring body (10), wherein a first annular groove (11) is formed in the inner wall of the ring body (10), a second annular groove (12) is formed in the outer wall of the ring body (10), the first annular groove (11) and the second annular groove (12) are arranged at intervals in the axial direction of the ring body (10), the first annular groove (11) is used for placing a first sealing ring (31), and the second annular groove (12) is used for placing a second sealing ring (32);

the fixing block (20) is arranged on the ring body (10), and the fixing block (20) is used for being connected with a structure to be sealed.

2. The sealing structure according to claim 1, characterized in that the first annular groove (11) has a greater dimension in the axial direction of the ring (10) than the second annular groove (12) has in the axial direction of the ring (10), the first annular groove (11) having a greater dimension in the radial direction of the ring (10) than the second annular groove (12) having a greater dimension in the radial direction of the ring (10).

3. The sealing structure of claim 1, wherein the anchor block (20) is disposed at one end of the ring body (10), and a portion of the anchor block (20) protrudes from the outer wall of the ring body (10) in a radial direction of the ring body (10).

4. The sealing structure of claim 3, wherein the fixing block (20) is a plate-shaped structure, and the fixing block (20) comprises a first plate body and a second plate body which are connected with each other, wherein the first plate body is connected with the end face of the ring body (10), the second plate body protrudes out of the outer wall of the ring body (10) along the radial direction of the ring body (10), and the second plate body is used for being connected with the structure to be sealed.

5. The sealing structure according to claim 3, characterized in that the fixing block (20) has a connecting hole (21), the connecting hole (21) being used for arranging a fastener to connect the fixing block (20) with the structure to be sealed.

6. The sealing structure of claim 3, characterized in that the ring body (10) is used for penetrating into a hole of the structure to be sealed, the end face of the fixing block (20) is used for being in limit fit with the end face of the structure to be sealed, the fixing block (20) is provided with a withdrawal hole (22), the withdrawal hole (22) is provided with an internal thread, and the withdrawal hole (22) is used for screwing a workpiece with an external thread to disassemble the ring body (10) penetrating into the structure to be sealed.

7. The sealing structure of claim 1, wherein the fixing block (20) is provided in plurality, and the fixing blocks (20) are arranged on the ring body (10) at intervals.

8. The sealing structure of claim 1, characterized in that the ring body (10) and the fixing block (20) are of a unitary structure.

9. The seal structure of claim 1, further comprising:

a first sealing ring (31) arranged in the first annular groove (11);

a second sealing ring (32) disposed within the second annular groove (12).

10. A robot, characterized in that the robot comprises a base (40), a robot arm (50), and a sealing structure, the robot arm (50) being rotatably arranged on the base (40), the sealing structure being as claimed in any one of claims 1 to 9, the sealing structure being arranged between the base (40) and the robot arm (50) for sealing.

11. The robot of claim 10, wherein the base (40) comprises a first seat (41) and a barrel (42) disposed on the first seat (41), the robot arm (50) comprises a second seat (51) and a rotating arm (52) disposed on the second seat (51), the second seat (51) is rotatably disposed on the first seat (41), the second seat (51) has a mounting hole, the barrel (42) is inserted into the mounting hole, the ring body (10) of the sealing structure is disposed between an inner wall of the mounting hole and an outer wall of the barrel (42), and the fixing block (20) is connected to the second seat (51).

12. The robot according to claim 11, characterized in that the second housing (51) comprises a first structure (511) and a second structure (512), the second structure (512) is convexly disposed on the first structure (511), the first structure (511) has the assembly hole, the second structure (512) has a relief hole (513), the relief hole (513) communicates with the assembly hole, the first structure (511) is rotatably disposed on the first housing (41), and the rotating arm (52) is rotatably disposed on the second structure (512).