Annular sliding bearing with positioning structure

Abstract

The utility model discloses an annular sliding bearing with a positioning structure, which relates to the technical field of sliding bearings, and particularly comprises a top layer outer ring, a hook-shaped part is arranged at the top of the outer cambered surface of the top layer outer ring, a bottom layer inner ring is movably sleeved in the hook-shaped part of the top layer outer ring, a protruding end is arranged on the upper surface of the bottom layer inner ring, and a positioning structure is arranged on the top layer outer ring. A clamping piece is arranged on one side of the protruding end, an extending end is arranged in the middle of the surface of one side of the clamping piece, a groove part is formed in the inner arc face of the top layer outer ring, the extending end on one side of the clamping piece is movably connected with the groove part in a clamped mode, and a bearing part is arranged on one side of the bottom layer inner ring. The retainer is movably clamped between the bearing part and the top-layer outer ring, the positioning sliding seat is clamped with the ball body, so that the connected positioning sliding seat can be attached to the retainer when the ball body moves, the friction between the large-area ball body and the bearing is reduced, and the situation that the ball body cannot deviate can be ensured through the connection of the positioning sliding seat.

Description

Technical Field

[0001] The utility model relates to the technical field of sliding bearings, in particular to an annular sliding bearing with a positioning structure. Background Art

[0002] The annular thrust sliding bearing is installed on the bearing seat of the engine crankshaft. When the engine runs at high speed, a lubricating oil film is established between the bearing and the working end face of the crankshaft journal to achieve low-friction support. The existing thrust sliding bearing has a gap between its two outer rings and the middle ring, which is easy for foreign dust to enter. The dust then enters and increases the rolling friction coefficient between the multiple rolling balls and the two outer rings and the middle ring, greatly reducing its service life. The bearing seizes the shaft due to various reasons, causing the bearing to rotate with the crankshaft and cause eccentric friction. Utility Model Content

[0003] In view of the deficiencies of the prior art, the utility model provides an annular sliding bearing with a positioning structure, which solves the problem that dust enters therein and increases the rolling friction coefficient between the multiple rolling balls and the two outer rings and the middle ring, thereby greatly reducing its service life.

[0004] To achieve the above objectives, the utility model is implemented through the following technical solutions: an annular sliding bearing with a positioning structure comprises a top layer outer ring, a hook portion is provided at the top of the outer arc surface of the top layer outer ring, a bottom layer inner ring is movably sleeved in the hook portion of the top layer outer ring, a protruding end is provided on the upper surface of the bottom layer inner ring, a clamping piece is provided on one side of the protruding end, an extending end is provided in the middle of one side surface of the clamping piece, a groove portion is provided on the inner arc surface of the top layer outer ring, the extending end on one side of the clamping piece is movably clamped with the groove portion, a bearing portion is provided on one side of the bottom layer inner ring, a retaining frame is movably clamped between the bearing portion and the top layer outer ring, the retaining frame is composed of two arc-shaped semicircular plates, a sphere is movably sleeved on the inner arc surface of the retaining frame, and a positioning slide is movably clamped on the outer arc surface of the sphere.

[0005] Optionally, a positioning groove is provided on the outer arc surface of the positioning slide, and the positioning groove is connected with a sphere through and through, and the number of the spheres is several and evenly distributed on the surface of the positioning slide in the form of a ring array.

[0006] Optionally, a sealing end is provided at the bottom of the bottom inner ring, and the sealing end is movably overlapped and adapted with the top outer ring. The number of the positioning grooves is several and they are in the form of an annular array to adapt to the sphere.

[0007] Optionally, a positioning groove is provided on the upper surface of the top outer ring. The positioning grooves are multiple in number and distributed in a ring array. The positioning slide is engaged with the ball so that when the ball moves, the connected positioning slide will fit on the retaining frame, thereby reducing the friction between the large-area ball and the bearing. The connection of the positioning slide can ensure that the ball will not be offset.

[0008] Optionally, the inner arc surfaces of several of the positioning grooves are movably clamped with sealing gaskets, and the top of the upper surface of the sealing gasket is provided with an expansion part, and the expansion part is on the surface of the top outer ring.

[0009] Optionally, a mounting portion is provided at the bottom of the lower surface of the sealing gasket, and the mounting portion at the bottom of the sealing gasket is movably snap-fitted into the positioning groove.

[0010] Optionally, the number of the sealing washers is two and they are evenly distributed in the form of a circular array, and the plurality of sealing washers are in the same plane as the internal spheres. The arrangement of the sealing washers can effectively reduce the entry of external dust into the area where the multiple spheres are located, and prevent dust from entering therein and increasing the rolling friction coefficient between the multiple spheres and the bearing, thereby greatly improving the service life. The sealing washers can also be opened to inject oil into the positioning groove, thereby facilitating the maintenance of the bearing.

[0011] The utility model provides an annular sliding bearing with a positioning structure, which has the following beneficial effects:

[0012] 1. The positioning slide is connected to the ball through the card connection. Therefore, when the ball moves, the connected positioning slide will fit on the retaining frame, thereby reducing the friction between the large area of ​​the ball and the bearing. In addition, the connection of the positioning slide can ensure that the ball will not be offset.

[0013] 2. The setting of the sealing gasket can effectively reduce the entry of external dust into the area where the multiple balls are located, and prevent dust from entering and increasing the rolling friction coefficient between the multiple balls and the bearings, thereby greatly improving the service life. The sealing gasket can also be opened to inject oil into the positioning groove, which makes it easier to maintain the bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the implementation of the utility model or the technical solution in the prior art, the following is a brief introduction to the drawings required for the implementation or the prior art description. Obviously, the drawings in the following description are only exemplary, and for ordinary technicians in this field, other implementation drawings can be derived from the provided drawings without creative work.

[0015] Figure 1This is a schematic diagram of the overall structure of an annular sliding bearing with a positioning structure of the utility model;

[0016] Figure 2 This is a schematic diagram of the cross-sectional structure of an annular sliding bearing with a positioning structure of the utility model;

[0017] Figure 3 This is a schematic diagram of the disassembled structure of an annular sliding bearing with a positioning structure of the utility model;

[0018] Figure 4 The utility model is a schematic diagram of the local structure of an annular sliding bearing with a positioning structure.

[0019] In the figure: 1. top outer ring; 101. hook-shaped portion; 2. bottom inner ring; 201. protruding end; 202. bearing portion; 3. snap-fit ​​part; 301. extension end; 4. retaining frame; 5. ball; 6. positioning slide; 601. positioning groove; 7. sealing end; 8. positioning groove; 9. sealing gasket; 901. expansion portion; 902. mounting portion. DETAILED DESCRIPTION

[0020] The structures, proportions, sizes, etc. illustrated in this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with the technology. They are not used to limit the conditions under which the present invention can be implemented, and therefore have no substantial technical significance. Any structural modification, change in proportion or adjustment in size shall still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and purposes that can be achieved by the present invention.

[0021] See also Figures 1 to 4The utility model provides a technical solution: an annular sliding bearing with a positioning structure, comprising a top outer ring 1, a hook-shaped portion 101 is provided on the top of the outer arc surface of the top outer ring 1, a bottom inner ring 2 is movably sleeved in the hook-shaped portion 101 of the top outer ring 1, a protruding end 201 is provided on the upper surface of the bottom inner ring 2, a clamping piece 3 is provided on one side of the protruding end 201, an extension end 301 is provided in the middle of one side surface of the clamping piece 3, a groove portion is provided on the inner arc surface of the top outer ring 1, the extension end 301 on one side of the clamping piece 3 is movably clamped with the groove portion, a bearing portion 202 is provided on one side of the bottom inner ring 2, a retaining frame 4 is movably clamped between the bearing portion 202 and the top outer ring 1, and the retaining frame 4 is It is composed of two arc-shaped semicircular plates, a ball 5 is movably sleeved on the inner arc surface of the retaining frame 4, a positioning slide 6 is movably clamped on the outer arc surface of the ball 5, a positioning groove 601 is provided on the outer arc surface of the positioning slide 6, the positioning groove 601 is connected with the ball 5, there are several balls 5, and they are evenly distributed on the surface of the positioning slide 6 in the form of an annular array, a sealing end 7 is provided at the bottom of the bottom inner ring 2, the sealing end 7 is movably overlapped and adapted with the top outer ring 1, there are several positioning grooves 601, and they are adapted with the ball 5 in the form of an annular array, and a positioning groove 8 is provided on the upper surface of the top outer ring 1, there are several positioning grooves 8, and they are distributed in the form of an annular array.

[0022] The positioning slide 6 is engaged with the ball 5 so that when the ball 5 moves, the connected positioning slide 6 will fit on the retaining frame 4, thereby reducing the friction between the large-area ball 5 and the bearing. In addition, the connection of the positioning slide 6 can ensure that the ball 5 will not be offset.

[0023] The inner arc surfaces of several positioning grooves 8 are movably clamped with sealing gaskets 9, the top of the upper surface of the sealing gasket 9 is provided with an expansion portion 901, and the expansion portion 901 and the surface of the top outer ring 1 are formed. The bottom of the lower surface of the sealing gasket 9 is provided with a mounting portion 902, and the mounting portion 902 at the bottom of the sealing gasket 9 is movably clamped into the positioning groove 8. There are two sealing gaskets 9, which are evenly distributed in the form of a ring array, and several sealing gaskets 9 are in the same plane as the internal sphere 5.

[0024] The provision of the sealing gasket 9 can effectively reduce the entry of external dust into the area where the multiple balls 5 are located, thereby preventing dust from entering therein and increasing the rolling friction coefficient between the multiple balls 5 and the bearing, thereby greatly improving the service life. The sealing gasket 9 can also be opened to inject oil into the positioning groove 8, thereby facilitating the maintenance of the bearing.

[0025] In the utility model, the working steps of the device are as follows:

[0026] The matching top outer ring 1 and bottom inner ring 2 are connected by a clip 3, and the top of the bottom inner ring 2 is placed on the hook 101 on one side of the top outer ring 1, and the extended end 301 on one side of the clip 3 is pressed against the recess on one side of the top outer ring 1, and the back of the clip 3 will be pressed against the bottom inner ring 2 while being subjected to force, so that the annular sliding bearing can be more conveniently disassembled due to the connection relationship of the clip 3, and the positioning groove 8 opened on the top outer ring 1 corresponds to the positioning slide 6, and the positioning slide 6 is snapped with the ball 5. Therefore, when the ball 5 moves, the connected positioning slide 6 will fit on the retaining frame 4, thereby reducing the friction between the large-area ball 5 and the bearing, and the connection of the positioning slide 6 can ensure that the ball 5 will not be offset, and through the setting of the sealing gasket 9, it can effectively reduce the entry of external dust into the area where the multiple balls 5 are located, avoid dust entering therein and increase the rolling friction coefficient between the multiple balls 5 and the bearing, and then greatly improve the service life. The sealing gasket 9 can also be opened to inject oil into the positioning groove 8, thereby facilitating maintenance of the bearing.

[0027] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An annular sliding bearing with a positioning structure, comprising a top outer ring (1), characterized in that: The top of the outer arc surface of the top outer ring (1) is provided with a hook-shaped portion (101), the hook-shaped portion (101) of the top outer ring (1) is movably sleeved with the bottom inner ring (2), the upper surface of the bottom inner ring (2) is provided with a protruding end (201), one side of the protruding end (201) is provided with a clamping piece (3), the middle part of one side surface of the clamping piece (3) is provided with an extension end (301), the inner arc surface of the top outer ring (1) is provided with a groove portion, The extension end (301) on one side of the clamping member (3) is movably clamped with the groove portion, and a bearing portion (202) is provided on one side of the bottom inner ring (2). A retaining frame (4) is movably clamped between the bearing portion (202) and the top outer ring (1). The retaining frame (4) is composed of two arc-shaped semicircular plates. A sphere (5) is movably sleeved on the inner arc surface of the retaining frame (4), and a positioning slide (6) is movably clamped on the outer arc surface of the sphere (5).

2. The annular sliding bearing with a positioning structure according to claim 1, characterized in that: The outer arc surface of the positioning slide (6) is provided with a positioning groove (601), and the positioning groove (601) is connected with the sphere (5) through and through. The number of the spheres (5) is several and they are evenly distributed on the surface of the positioning slide (6) in the form of a ring array.

3. The annular sliding bearing with a positioning structure according to claim 2, characterized in that: The bottom of the bottom inner ring (2) is provided with a sealing end (7), and the sealing end (7) is movably overlapped and adapted with the top outer ring (1). The number of the positioning grooves (601) is several, and they are adapted with the sphere (5) in the form of an annular array.

4. The annular sliding bearing with a positioning structure according to claim 3, characterized in that: The upper surface of the top outer ring (1) is provided with positioning grooves (8), and the number of the positioning grooves (8) is several and they are distributed in the form of an annular array.

5. The annular sliding bearing with a positioning structure according to claim 4, characterized in that: The inner arc surfaces of a plurality of the positioning grooves (8) are movably clamped with sealing gaskets (9), and the top of the upper surface of the sealing gasket (9) is provided with an expansion portion (901), and the expansion portion (901) is on the surface of the top outer ring (1).

6. The annular sliding bearing with a positioning structure according to claim 5, characterized in that: The bottom of the lower surface of the sealing gasket (9) is provided with a mounting portion (902), and the mounting portion (902) at the bottom of the sealing gasket (9) is movably snap-fitted into the positioning groove (8).

7. The annular sliding bearing with a positioning structure according to claim 6, characterized in that: The number of the sealing gaskets (9) is two and they are evenly distributed in the form of a ring array, and a plurality of the sealing gaskets (9) are in the same plane as the sphere (5) inside.

Images