Self-lubricating bearing bush with clamping positioning structure

Abstract

A self-lubricating bearing bush with a clamping and positioning structure comprises a bearing bush main body, a positioning structure and a clamping structure, the bearing bush main body comprises a first shell and a second shell, the positioning structure comprises positioning pieces arranged at one end of the first shell and one end of the second shell respectively, and the clamping structure is arranged between the first shell and the second shell. The end faces of the positioning pieces are flush with the end face of the first shell or the end face of the second shell, the clamping structure comprises a plug and a socket, and the positioning pieces on the first shell correspond to the positioning pieces on the second shell in position. According to the self-lubricating bearing bush with the clamping and positioning structure, one end of the first shell and one end of the second shell are each provided with one positioning piece, the position of the bearing bush body can be positioned, the position of a bearing inserted into the bearing bush body can also be positioned, the clamping structures are arranged on the end faces of the positioning pieces, and therefore the clamping and positioning structure can be formed. And the mounting stability of the bearing bush main body is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of bearing bushes, in particular to a self-lubricating bearing bush with a clamping positioning structure. Background Art

[0002] The bearing shell is the part where the sliding bearing and the shaft neck come into contact. Its performance directly affects the operating efficiency and life of the bearing. The bearing shell is generally mounted on the outside of the bearing to position and protect the bearing. Since the bearing needs to slide back and forth during use, the structure of the bearing shell itself needs to be stable after installation and be able to be stably fixed on other devices.

[0003] However, there are some problems with the existing bearings during use. After the bearings are mounted on the bearings, they cannot be positioned with the bearings, and the bearings are not firmly fastened and there is a risk of falling off, and the bearings cannot be fixed with the external structure. Utility Model Content

[0004] In view of this, the utility model provides a self-lubricating bearing bush with a snap-fit ​​positioning structure to solve the above-mentioned problem.

[0005] A self-lubricating bearing with a snap-fit ​​positioning structure comprises a bearing body, a positioning structure arranged on the bearing body, and a snap-fit ​​structure arranged between the positioning structures. The bearing body comprises a first shell and a second shell spliced ​​with the first shell, the first shell and the second shell are respectively semi-annular, the positioning structure comprises positioning pieces respectively arranged at one end of the first shell and the second shell, the positioning pieces are respectively inclined away from the center direction of the first shell or the second shell, the end face of the positioning piece is flush with the end face of the first shell or the second shell, the snap-fit ​​structure comprises a plug at one end of the positioning piece arranged on the first shell, and a socket at one end of the positioning piece arranged on the second shell, the positions of the positioning pieces on the first shell and the second shell correspond, the first shell and the second shell are snapped together so that the plug is inserted into the socket, so that the two positioning pieces are connected.

[0006] Furthermore, the inner wall and the outer wall of the positioning piece are respectively plane, and the inner wall and the outer wall of the positioning piece have different inclination angles.

[0007] Furthermore, an angle between an inner wall of the positioning piece and a tangent line of a semi-ring body of the first shell or the second shell at that location is greater than an angle between an outer wall of the positioning piece and the tangent line.

[0008] Furthermore, an angle between an inner wall of the positioning piece and a corresponding tangent line of the first shell or the second shell is 15°-30°.

[0009] Furthermore, two sides of the positioning sheet are sealedly connected to the first shell or the second shell respectively. Furthermore, two side edges of the first shell and the second shell are chamfered respectively.

[0010] Furthermore, the length of the plug does not exceed the length of the positioning piece, and the plug and the socket are respectively perpendicular to the end surface of the positioning piece.

[0011] Compared with the prior art, the self-lubricating bearing with a snap-fit ​​positioning structure provided by the utility model can not only locate the position of the bearing body, but also locate the position of the bearing inserted in the bearing body by respectively arranging a positioning plate at one end of the first shell and the second shell. A snap-fit ​​structure is arranged on the end face of the positioning plate. When the two first shells and the second shells are spliced, the snap-fit ​​structure increases the tightness of the connection between the positioning plates, thereby increasing the stability of the installation of the bearing body. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 The present invention is a schematic structural diagram of a self-lubricating bearing bush with a snap-fit ​​positioning structure provided by the present invention.

[0013] Figure 2 for Figure 1 A cross-sectional view of a self-lubricating bearing bush with a snap-fit ​​positioning structure.

[0014] Figure 3 for Figure 1 A partial enlarged view of the self-lubricating bearing with a snap-on positioning structure at point A. DETAILED DESCRIPTION

[0015] The following is a further detailed description of the specific embodiments of the present invention. It should be understood that the description of the embodiments of the present invention herein is not intended to limit the protection scope of the present invention.

[0016] like Figures 1 to 3 As shown, it is a schematic diagram of the structure of the self-lubricating bearing with a snap-fit ​​positioning structure provided by the utility model. The self-lubricating bearing with a snap-fit ​​positioning structure includes two bearing shells 10 assembled with each other, a positioning structure 20 respectively arranged at one end of the bearing shell 10, and a snap-fit ​​structure 30 respectively arranged at the end of each positioning structure 20. The self-lubricating bearing with a snap-fit ​​positioning structure also includes some other functional modules, such as an anti-rust layer and a decorative layer arranged on the outside of the bearing shell 10, etc., which should be technologies well known to those skilled in the art and will not be described in detail one by one here.

[0017] The bearing body 10 includes a first shell 11 in a semi-circular shape and a second shell 12 in a semi-circular shape. The first shell 11 and the second shell 12 are assembled together to form a ring shape. The sides of the first shell 11 and the second shell 12 are both chamfered. The bearing body 10 is made of iron or iron alloy, and the planes at both ends of the bearing body 10 are respectively located in the same plane, so that the joint surfaces are mutually abutted and overlapped after assembly.

[0018] The positioning structure 20 includes a positioning piece 21 respectively arranged at one end of the first shell 11 and the second shell 11. The ends of the positioning piece 21 are respectively away from the center direction of the first shell 11 and the second shell 11. The inner wall and the outer wall of the positioning piece 21 are respectively planes. It should be noted that the inner wall of the positioning piece 21 refers to the side facing the inner wall of the first shell 11 or the second shell 12, and the outer wall of the positioning piece 21 refers to the side away from the outer wall of the first shell 11 or the second shell 12.

[0019] The end faces of the positioning pieces 21 are respectively flush with the end faces of the first shell 11, so that when the first shell 11 and the second shell 12 are assembled together, the positioning pieces 21 are assembled together to form a positioning structure 20 with a protruding outer wall and a recessed inner wall. When in use, a convex portion is provided on the outside of the bearing inserted into the bush body 10, and the convex portion is inserted into the positioning structure 20 formed by the two positioning pieces 21, so as to locate the position of the bearing; and a groove is also provided at the external mounting position of the bush body 10, and the convex portion of the positioning structure 20 is correspondingly clamped in the groove, so as to limit the position of the bush body 10.

[0020] The angle between the outer wall of the positioning piece 21 and the contour tangent of the semi-ring body of the first shell 11 or the second shell 12 at that location is greater than the angle between the inner wall of the positioning piece 21 and the contour tangent of the semi-ring body of the first shell 11 or the second shell 12 at that location, and the angle between the inner wall of the positioning piece 21 and the tangent is 15°-30°. The restriction of the angle can increase the inner wall recess space of the positioning piece 21 without changing the protruding height of the outer wall of the positioning piece 21, thereby providing a larger space for facilitating the clamping of the outer protrusion of the bearing.

[0021] Both sides of the positioning piece 21 are sealed to the housing to prevent the lubricating oil on the inner wall of the housing 11 from leaking from the joints.

[0022] The clamping structure 30 includes a plug 31 disposed on one end surface of the positioning piece 21 of the first housing 11, and a socket 32 ​​disposed on one end surface of the positioning piece 21 of the second housing 12. The plug 31 is inserted into the socket 32, so that the two positioning pieces 21 are stably connected, and the first housing 11 and the second housing 12 are stably connected.

[0023] The plug 31 and the socket 32 ​​are respectively arranged vertically on the end surfaces of the corresponding positioning pieces 21, so as to facilitate the alignment and assembly of the two.

[0024] The lengths of the socket 32 ​​and the plug 31 are the same and do not exceed the length of the positioning piece 21 .

[0025] Compared with the prior art, the self-lubricating bearing with a snap-fit ​​positioning structure provided by the utility model can not only locate the position of the bearing body 10, but also locate the position of the bearing inserted in the bearing body 10 by respectively arranging a positioning piece 21 at one end of the first shell 11 and the second shell 12. A snap-fit ​​structure 30 is arranged on the end face of the positioning piece 21. When the two first shells 11 and the second shells 12 are spliced, the snap-fit ​​structure 30 increases the tightness of the connection between the positioning pieces 21, thereby increasing the stability of the installation of the bearing body 10.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modification, equivalent substitution or improvement within the spirit of the present invention are included in the scope of the claims of the present invention.

Claims

1. A self-lubricating bearing with a snap-fit ​​positioning structure, characterized in that: The self-lubricating bearing with a snap-fit ​​positioning structure includes a bearing body, a positioning structure arranged on the bearing body, and a snap-fit ​​structure arranged between the positioning structures. The bearing body includes a first shell and a second shell spliced ​​with the first shell. The first shell and the second shell are respectively semi-annular. The positioning structure includes positioning pieces respectively arranged at one end of the first shell and the second shell. The positioning pieces are respectively inclined away from the center direction of the first shell or the second shell. The end face of the positioning piece is flush with the end face of the first shell or the second shell. The snap-fit ​​structure includes a plug at one end of the positioning piece arranged on the first shell, and a socket at one end of the positioning piece arranged on the second shell. The positions of the positioning pieces on the first shell and the second shell correspond. The first shell and the second shell are snapped together so that the plug can be inserted into the socket to connect the two positioning pieces.

2. The self-lubricating bearing bush with a snap-fit ​​positioning structure according to claim 1, characterized in that: The inner wall and the outer wall of the positioning piece are respectively plane, and the inner wall and the outer wall of the positioning piece have different inclination angles.

3. The self-lubricating bearing bush with a snap-fit ​​positioning structure according to claim 2, characterized in that: The angle between the inner wall of the positioning piece and the tangent line of the semi-ring body of the first shell or the second shell at that location is greater than the angle between the outer wall of the positioning piece and the tangent line.

4. The self-lubricating bearing bush with a snap-fit ​​positioning structure according to claim 3, characterized in that: The angle between the inner wall of the positioning piece and the corresponding tangent line of the first shell or the second shell is 15°-30°.

5. The self-lubricating bearing bush with a snap-fit ​​positioning structure according to claim 1, characterized in that: Both sides of the positioning sheet are sealed and connected to the first shell or the second shell respectively.

6. The self-lubricating bearing bush with a snap-fit ​​positioning structure according to claim 1, characterized in that: The edges of both sides of the first shell and the second shell are respectively chamfered.

7. The self-lubricating bearing bush with a snap-fit ​​positioning structure according to claim 1, characterized in that: The length of the plug does not exceed the length of the positioning piece, and the plug and the socket are respectively perpendicular to the end surface of the positioning piece.

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