Tensioning wheel bearing

Abstract

The utility model relates to a tensioning wheel bearing in the technical field of bearings. The oil injection device comprises a fixing assembly arranged in the bearing body, a connecting assembly used for moving up and down is arranged at the top end of the fixing assembly, and a driving assembly used for driving the connecting assembly to move up and down is arranged at the top end of the connecting assembly. The driving assembly comprises a fixing disc which is arranged in the through groove and used for moving up and down, a fixing strip used for locking the fixing disc is arranged at the top end of the fixing disc, and a locking rod used for inserting the locking rod into the locking hole to lock the fixing disc is arranged at the top end of the fixing strip. And when lubricating oil needs to be added into the bearing body, the locking rod can be taken out from the locking hole and the fixing strip, then the fixing strip is turned over to the fixing disc, and then the fixing disc is pressed downwards, so that the fixing rod drives the limiting plate to compress the spring, the through groove is conveniently opened, and the lubricating oil is conveniently added into the bearing body.

Description

Technical Field

[0001] The utility model relates to the technical field of bearings, in particular to a tensioner wheel bearing. Background Art

[0002] The tensioner is a belt tensioning device used in the automobile transmission system. The tensioner is mainly used to adjust the tightness of the belt. By adjusting the position of the tensioner, the tensioner is always closely attached to the belt surface to achieve the purpose of tensioning the belt. The bearing is mainly used to cooperate with the rotation of the tensioner, so that the belt can drive the tensioner to rotate during the transmission process. When the existing tensioner bearing is used, it is necessary to inject lubricating oil into the tensioner bearing, which is a cumbersome operation, time-consuming and labor-intensive.

[0003] For example, a tensioner bearing for automobiles with Chinese patent application number CN202122370611.3 has a retaining frame between the outer ring and the inner ring, a plurality of balls on the retaining frame, a lubricating oil absorption pad at the middle position of the inner side of the outer ring, an oil outlet plate at the outer side of the lubricating oil absorption pad, a plurality of through oil outlet holes at the oil outlet plate, a plurality of oil filling holes at the middle position of the outer side of the outer ring, the inner end of the oil filling hole is connected to the lubricating oil absorption pad, an oil filling plug is provided in the oil filling hole, and a first sealing mechanism and a second sealing mechanism are provided between the outer ring and the inner ring. It has the following technical defects:

[0004] When lubricating oil needs to be added to the bearing, it is usually manually added to the bearing directly, and the bearing is rotated to facilitate the flow of lubricating oil into the ball. This process is not only cumbersome, but also the lubricating oil will flow out of the ball surface, resulting in waste of lubricating oil. Utility Model Content

[0005] In order to solve the problem that when lubricating oil needs to be added to the bearing, the lubricating oil is usually added to the bearing manually, and the lubricating oil is rotated to facilitate the flow of the lubricating oil into the ball. This process is not only cumbersome, but also the lubricating oil will flow out of the ball surface, resulting in a waste of lubricating oil. The utility model provides the following technical solutions:

[0006] A tensioner wheel bearing comprises a bearing body clamped on the tensioner wheel, wherein the top end of the bearing body is provided with an oil injection device for adding lubricating oil into the bearing body.

[0007] The oil injection device comprises a fixing component arranged in the bearing body, a connecting component for moving up and down is arranged at the top of the fixing component, and a driving component for driving the connecting component to move up and down is arranged at the top of the connecting component.

[0008] Furthermore, the bearing body includes an inner ring clamped on the output shaft of the tensioner wheel, and the outer side of the inner ring is provided with balls for the inner ring to rotate, and there are a plurality of balls, and the outer side of the inner ring is provided with a fixing frame for clamping and connecting the balls.

[0009] Furthermore, a protective outer ring for protecting the fixing frame is arranged on the outer side of the inner ring, and outer covers for protecting the balls are fixedly mounted on the upper and lower ends of the inner ring.

[0010] Furthermore, a through slot for connecting the assembly to move up and down is provided at the top end of the outer cover, a groove is provided in the through slot, and a locking hole for locking the driving assembly is provided at the top end of the outer cover.

[0011] Furthermore, the drive assembly includes a fixed plate arranged in the through slot for moving up and down, a fixing bar for locking the fixed plate is arranged at the top of the fixed plate, and a locking rod for inserting the locking rod into the locking hole to lock the fixed plate is arranged at the top of the fixing bar.

[0012] Furthermore, the connecting assembly includes a fixing rod fixedly mounted on the bottom end of the fixing plate, a fixing block is arranged below the fixing rod, a limiting plate for preventing the fixing rod from detaching from the fixing block is fixedly mounted on the bottom end of the fixing rod, and a spring for resetting the limiting plate is fixedly mounted in the fixing block.

[0013] Furthermore, the fixing assembly includes a fixing plate fixedly mounted on the bottom end of the fixing block, and a supporting rod for supporting the fixing plate is fixedly mounted on the top end of the fixing plate, and there are a plurality of supporting rods.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By providing an oil injection device, when it is necessary to add lubricating oil to the bearing body, the locking rod can be taken out from the locking hole and the fixing strip, and then the fixing strip can be flipped onto the fixing plate, and then the fixing plate can be pressed downward, so that the fixing rod drives the limiting plate to compress the spring, so as to open the through groove, thereby facilitating the addition of lubricating oil to the bearing body, thereby preventing the lubricating oil from leaking and avoiding waste of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 This is a cross-sectional view of the bearing body of the utility model;

[0018] Figure 3 For this utility model Figure 2 Enlarged view of point A in the middle;

[0019] Figure 4 This is a schematic diagram of the structure of the oil injection device of the utility model;

[0020] Figure 5 This is a cross-sectional view of the fixing block of the utility model;

[0021] Figure 6 This is a diagram showing the coordination between the drive assembly and the connection assembly of the utility model.

[0022] In the accompanying drawings, the names of the components represented by the reference numerals are listed as follows:

[0023] 100-bearing body, 101-inner ring, 102-, 103-ball, 104-through groove, 105-groove, 106-locking hole, 107-outer cover, 108-fixed frame;

[0024] 200-oil filling device, 210-driving assembly, 211-fixed plate, 212-fixed bar, 213-locking rod, 220-connecting assembly, 221-fixed rod, 222-limiting plate, 223-fixed block, 224-spring, 230-fixed assembly, 231-fixed plate, 232-support rod. DETAILED DESCRIPTION

[0025] The preferred specific implementation methods for implementing the present utility model are described in detail below, and a clear and complete description is made in conjunction with the accompanying drawings.

[0026] See also Figure 1-Figure 6 The utility model provides a tensioner pulley bearing.

[0027] It comprises a bearing body 100 clamped on the tensioner wheel to facilitate the rotation of the tensioner wheel; an oil injection device 200 for adding lubricating oil into the bearing body 100 is arranged at the top end of the bearing body 100.

[0028] The bearing body 100 includes an inner ring 101 clamped on the output shaft of the tensioner, and the inner ring 101 is installed on the output shaft of the tensioner through a key connection; the outer side of the inner ring 101 is provided with balls 103 for rotating the inner ring 101, and there are a plurality of balls 103, which are distributed in a circular array on the outer side of the inner ring 101, and the outer side of the inner ring 101 is concave to facilitate the rotation of the plurality of balls 103; the outer side of the inner ring 101 is provided with a fixing frame 108 for clamping the balls 103, and the frame body of the fixing frame 108 is provided with a circular groove for clamping the balls 103.

[0029] A protective outer ring 102 for protecting the fixed frame 108 is arranged on the outer side of the inner ring 101, and outer covers 107 for protecting the balls 103 are fixedly installed at the upper and lower ends of the inner ring 101, and the outer cover 107 can connect the protective outer ring 102 and the inner ring 101, so as to facilitate the rotation of the bearing body 100.

[0030] A through slot 104 for the connecting component 220 to move up and down is provided at the top end of the outer cover 107, and a groove 105 is provided in the through slot 104, so that lubricating oil can be added to the through slot 104 by moving the oil filling device 200 downward along the groove of the through slot 104, and the lubricating oil can flow into the bearing body 100 through the groove 105, so as to facilitate the lubrication of the ball 103, and a locking hole 106 for locking the driving component 210 is provided at the top end of the outer cover 107.

[0031] The oil injection device 200 includes a fixing component 230 disposed in the bearing body 100 , a connecting component 220 for moving up and down is disposed at the top of the fixing component 230 , and a driving component 210 for driving the connecting component 220 to move up and down is disposed at the top of the connecting component 220 .

[0032] The driving assembly 210 includes a fixed plate 211 arranged in the through slot 104 for moving up and down, a fixed bar 212 for locking the fixed plate 211 is arranged at the top of the fixed plate 211, and the fixed bar 212 is movably connected to the fixed plate 211; a locking rod 213 is arranged at the top of the fixed bar 212 for inserting the locking rod 213 into the locking hole 106 to lock the fixed plate 211, so that when it is necessary to add lubricating oil to the bearing body 100, the locking rod 213 can be taken out from the locking hole 106 and the fixing bar 212, and then the fixing bar 212 is flipped onto the fixed plate 211, and then the fixed plate 211 drives the connecting assembly 220 to move downward, so as to open the through slot 104, thereby facilitating the addition of lubricating oil to the bearing body 100.

[0033] The connecting assembly 220 includes a fixing rod 221 fixedly mounted on the bottom end of the fixing plate 211, a fixing block 223 is arranged below the fixing rod 221, a limiting plate 222 is fixedly mounted on the bottom end of the fixing rod 221 for preventing the fixing rod 221 from escaping from the fixing block 223, and a spring 224 is fixedly mounted in the fixing block 223 for resetting the limiting plate 222.

[0034] The fixing assembly 230 includes a fixing plate 231 fixedly mounted on the bottom end of the fixing block 223, and a support rod 232 for supporting the fixing plate 231 is fixedly mounted on the top end of the fixing plate 231, and there are a plurality of support rods 232, and the plurality of support rods 232 are distributed in a circular array at the top end of the fixing plate 231, and the top ends of the plurality of support rods 232 are connected to the inner wall of the outer cover 107; therefore, when it is necessary to add lubricating oil to the bearing body 100, the locking rod 213 can be removed from the locking hole 106 and the fixing bar 212, and then the fixing bar 212 can be turned over to the fixing disk 211, and then the fixing disk 211 can be pressed downward, so that the fixing rod 221 drives the limiting plate 222 to compress the spring 224, so as to open the through slot 104, thereby facilitating the addition of lubricating oil to the bearing body 100.

[0035] Based on the above content and the accompanying drawings, those skilled in the art can understand and implement the utility model. In addition, any non-creative modifications made to the utility model by those skilled in the art without making creative work still fall within the scope of protection of the utility model.

Claims

1. A tensioner bearing, characterized in that: It comprises a bearing body (100) clamped on a tensioner wheel, wherein the top end of the bearing body (100) is provided with an oil injection device (200) for adding lubricating oil into the bearing body (100); The oil injection device (200) comprises a fixing component (230) arranged in the bearing body (100), a connecting component (220) for moving up and down is arranged at the top end of the fixing component (230), and a driving component (210) for driving the connecting component (220) to move up and down is arranged at the top end of the connecting component (220).

2. The tensioner bearing according to claim 1, characterized in that: The bearing body (100) comprises an inner ring (101) clamped on the output shaft of the tensioner wheel, a plurality of balls (103) are arranged on the outer side of the inner ring (101) for supporting the inner ring (101) to rotate, and a fixing frame (108) is arranged on the outer side of the inner ring (101) for clamping and connecting the balls (103).

3. The tensioner bearing according to claim 2, characterized in that: A protective outer ring (102) for protecting a fixing frame (108) is arranged outside the inner ring (101), and outer covers (107) for protecting the balls (103) are fixedly mounted at the upper and lower ends of the inner ring (101).

4. The tensioner bearing according to claim 3, characterized in that: A through slot (104) for the connection component (220) to move up and down is provided at the top end of the outer cover (107), a groove (105) is provided in the through slot (104), and a locking hole (106) for locking the drive component (210) is provided at the top end of the outer cover (107).

5. The tensioner bearing according to claim 4, characterized in that: The driving assembly (210) comprises a fixed disk (211) arranged in the through slot (104) for moving up and down, a fixing bar (212) for locking the fixed disk (211) being arranged at the top end of the fixed disk (211), and a locking rod (213) for inserting the locking rod (213) into the locking hole (106) for locking the fixed disk (211) being arranged at the top end of the fixing bar (212).

6. The tensioner bearing according to claim 5, characterized in that: The connecting assembly (220) comprises a fixing rod (221) fixedly mounted on the bottom end of the fixing plate (211); a fixing block (223) is arranged below the fixing rod (221); a limiting plate (222) for preventing the fixing rod (221) from being separated from the fixing block (223) is fixedly mounted at the bottom end of the fixing rod (221); and a spring (224) for resetting the limiting plate (222) is fixedly mounted in the fixing block (223).

7. The tensioner bearing according to claim 6, characterized in that: The fixing assembly (230) comprises a fixing plate (231) fixedly mounted on the bottom end of the fixing block (223), and a supporting rod (232) for supporting the fixing plate (231) is fixedly mounted on the top end of the fixing plate (231), and there are a plurality of supporting rods (232).

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