Dustproof rod end joint bearing

Abstract

The utility model belongs to the technical field of rod end knuckle bearings, and particularly relates to a dustproof rod end knuckle bearing which comprises a bearing outer ring, a spherical roller is arranged on the inner wall of the bearing outer ring in an attached mode, and a bearing inner ring is arranged on the surface of the spherical roller in an attached mode. Retainers are arranged on the inner wall of the bearing outer ring, the surface of the spherical roller and the surface of the bearing inner ring in an attached mode, a telescopic rod is fixedly connected to the bottom of the bearing outer ring, a second nut is in threaded connection with the surface of the telescopic rod, and guide rings are fixedly connected to the left side and the right side of the bearing outer ring; and a strip-shaped hole is formed in the bearing outer ring. According to the dustproof rod end knuckle bearing, through cooperation of the telescopic rod, the second nut, the guide ring, the strip-shaped hole, the second cylinder, the locking plate, the positioning groove and the sealing plate, a user can complete disassembly and assembly of the sealing plate by rotating the second nut, and then the user can conveniently maintain the dustproof rod end knuckle bearing.

Description

Technical Field

[0001] The utility model belongs to the technical field of rod end joint bearings, and particularly relates to a dustproof rod end joint bearing. Background Art

[0002] A rod end joint bearing is a joint bearing with a rod end or mounted on a rod end, and is a type of joint bearing. Currently, to prevent dust from entering the rod end joint bearing, most methods use a sealing plate installed on the bearing outer ring to seal the connection between the bearing outer ring and the retaining frame, and the connection between the bearing inner ring and the retaining frame, preventing dust from entering the rod end joint bearing. For example, Chinese patent publication number CN221347587U discloses a new type of dust-proof rod end joint bearing. However, since the sealing plate and the bearing outer ring are fixed by multiple bolts, the sealing plate is difficult to disassemble and assemble, making it inconvenient for maintenance personnel to repair the interior of the rod end joint bearing. At the same time, since the length of the rod end joint bearing is usually fixed, the adaptability of the rod end joint bearing is low. Utility Model Content

[0003] The purpose of the utility model is to provide a dustproof rod end joint bearing, which solves the problem that the sealing plate is troublesome to disassemble and assemble because the sealing plate and the outer ring of the bearing are fixed by multiple bolts. At the same time, it solves the problem that the adaptability of the rod end joint bearing is low because the length of the rod end joint bearing is usually fixed.

[0004] The technical solutions adopted by this utility model are as follows:

[0005] A dustproof rod end joint bearing, comprising a bearing outer ring, an inner wall of the bearing outer ring being fitted with a spherical roller, the surface of the spherical roller being fitted with the bearing inner ring, the inner wall of the bearing outer ring, the surface of the spherical roller and the surface of the bearing inner ring being fitted with a retaining frame, the bottom of the bearing outer ring being fixedly connected to a telescopic rod, the surface of the telescopic rod being threadedly connected to a second nut, the left and right sides of the bearing outer ring being fixedly connected to a guide ring, the interior of the bearing outer ring being provided with a strip hole, the inner wall of the strip hole being fitted with a second cylinder, both ends of the second cylinder being fixedly connected to a locking plate, the inner wall of the guide ring and the upper surface of the second nut being fitted with the surface of the locking plate, positioning grooves being provided on the left and right sides of the bearing outer ring, the inner wall of the positioning groove, the left and right sides of the bearing outer ring and the left and right sides of the bearing inner ring being fitted with sealing plates, the inner wall of the sealing plate being fitted with the surface of the locking plate.

[0006] The present invention is further configured as follows: the telescopic rod includes a threaded column, a threaded barrel, a hollow bearing rod, a first groove, a second groove, a first cylinder, a cylinder and a first nut, the top of the threaded column is fixedly connected to the bottom of the bearing outer ring, the surface of the threaded column is threadedly connected to the inner wall of the second nut, the surface of the threaded column is threadedly connected to the inner wall of the threaded barrel, the bottom of the threaded barrel is fixedly connected to the upper surface of the hollow bearing rod, the first groove is opened on the bottom of the threaded column, the second groove is opened on the top of the threaded barrel, the inner wall of the first groove and the inner wall of the second groove are both fitted with the surface of the first cylinder, the front and rear ends of the first cylinder are fixedly connected to the inner wall of the cylinder, the inner wall of the cylinder is fitted with the surface of the threaded barrel, the upper surface of the cylinder is fitted with the bottom of the first nut, and the inner wall of the first nut is threadedly connected to the surface of the threaded column.

[0007] The present invention is further configured as follows: the sealing plate includes a hollow circular plate, a positioning block, a locking groove and a baffle, the left and right sides of the bearing outer ring and the left and right sides of the bearing inner ring are both fitted with the side surfaces of the hollow circular plate, the side surfaces of the hollow circular plate are fixedly connected to the side surfaces of the positioning block, the surface of the positioning block is fitted with the inner wall of the positioning groove, the locking groove is opened on the bottom of the hollow circular plate, the inner wall of the locking groove is fixedly connected to the surface of the baffle, and the side surfaces of the baffle and the inner wall of the locking groove are both fitted with the surface of the locking plate.

[0008] The present invention is further configured such that the center of the hollow circular plate and the center of the bearing inner ring are on the same horizontal line, and the inner diameter of the hollow circular plate is greater than the inner diameter of the bearing inner ring.

[0009] The present invention is further configured such that the axis of the threaded barrel coincides with the axis of the hollow bearing rod, and the outer diameter of the threaded barrel is equal to the outer diameter of the hollow bearing rod.

[0010] The present invention is further configured such that the positioning block is a tapered block, and the shape of the positioning block is the same as the shape of the positioning groove.

[0011] The technical effects achieved by this utility model are:

[0012] The dustproof rod end joint bearing of the utility model cooperates with the second nut, the guide ring, the strip hole, the second cylinder and the locking plate, so that the user can fix the locking plate in the locking groove on the sealing plate or separate the locking plate from the sealing plate by turning the second nut. At the same time, when the locking plate is fixed in the locking groove on the sealing plate, the sealing plate can be fixed to the outer ring of the bearing through the cooperation of the locking plate, the locking groove, the baffle, the positioning block and the positioning groove. When the locking plate is separated from the sealing plate, the sealing plate can be directly separated from the outer ring of the bearing. Then, when the user repairs the dustproof rod end joint bearing, the user can complete the disassembly and assembly of the sealing plate on the dustproof rod end joint bearing by turning the second nut, thereby facilitating the user to repair the dustproof rod end joint bearing.

[0013] The dustproof rod end joint bearing of the utility model cooperates with the threaded barrel and the threaded column, so that the user can change the length of the telescopic rod by rotating the threaded barrel, and the length of the dustproof rod end joint bearing can be changed by changing the length of the telescopic rod. At the same time, when the length of the telescopic rod is adjusted, the first cylinder in the cylinder can be fixed in the second groove by the second nut, and the threaded barrel cannot be rotated due to the cooperation of the first groove, the second groove and the first cylinder. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a three-dimensional schematic diagram of the structure of the utility model;

[0015] Figure 2 It is a side view of the structure of the utility model;

[0016] Figure 3 yes Figure 2 Cross-sectional view at AA in the middle;

[0017] Figure 4 yes Figure 3 Enlarged view of point B in the middle;

[0018] Figure 5 yes Figure 3 Cross-sectional view at CC;

[0019] Figure 6 This is a side view of the outer ring of the bearing in the utility model;

[0020] Figure 7 It is a schematic diagram of the threaded column in the utility model;

[0021] Figure 8 It is a schematic diagram of the threaded barrel in the utility model;

[0022] Figure 9 It is a side view of the sealing plate in the utility model;

[0023] Figure 10It is a schematic diagram of the hollow circular plate of the utility model.

[0024] In the accompanying drawings, the components represented by the reference numerals are as follows:

[0025] 1. Bearing outer ring; 2. Spherical roller; 3. Bearing inner ring; 4. Cage; 5. Telescopic rod; 51. Threaded column; 52. Threaded barrel; 53. Hollow bearing rod; 54. First groove; 55. Second groove; 56. First cylinder; 57. Cylinder; 58. First nut; 6. Second nut; 7. Guide ring; 8. Strip hole; 9. Second cylinder; 10. Locking plate; 11. Positioning groove; 12. Sealing plate; 121. Hollow circular plate; 122. Positioning block; 123. Locking groove; 124. Baffle. DETAILED DESCRIPTION

[0026] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below with reference to the accompanying drawings.

[0027] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0028] like Figures 1 to 10 As shown, a dustproof rod end joint bearing comprises a bearing outer ring 1, a spherical roller 2 is fitted on the inner wall of the bearing outer ring 1, a bearing inner ring 3 is fitted on the surface of the spherical roller 2, a retainer 4 is fitted on the inner wall of the bearing outer ring 1, the surface of the spherical roller 2 and the surface of the bearing inner ring 3, a telescopic rod 5 is fixedly connected to the bottom of the bearing outer ring 1, a second nut 6 is threadedly connected to the surface of the telescopic rod 5, a guide ring 7 is fixedly connected to the left and right sides of the bearing outer ring 1, a strip hole 8 is opened inside the bearing outer ring 1, a second cylinder 9 is fitted on the inner wall of the strip hole 8, a locking plate 10 is fixedly connected to both ends of the second cylinder 9, the inner wall of the guide ring 7 and the upper surface of the second nut 6 are fitted with the surface of the locking plate 10, a positioning groove 11 is opened on the left and right sides of the bearing outer ring 1, a sealing plate 12 is fitted on the inner wall of the positioning groove 11, the left and right sides of the bearing outer ring 1 and the left and right sides of the bearing inner ring 3, and the inner wall of the sealing plate 12 is fitted with the surface of the locking plate 10.

[0029] Among them, the sealing plate 12 includes a hollow circular plate 121, a positioning block 122, a locking groove 123 and a baffle 124. The left and right sides of the bearing outer ring 1 and the left and right sides of the bearing inner ring 3 are all fitted with the side of the hollow circular plate 121. The center of the hollow circular plate 121 and the center of the bearing inner ring 3 are on the same horizontal line. The inner diameter of the hollow circular plate 121 is longer than the inner diameter of the bearing inner ring 3. The side of the hollow circular plate 121 is fixedly connected to the side of the positioning block 122. The surface of the positioning block 122 is fitted with the inner wall of the positioning groove 11. The positioning block 122 is a conical block. The shape of the positioning block 122 is consistent with the fixed The positioning grooves 11 have the same shape. When the positioning block 122 is inserted into the positioning groove 11, the hollow circular plate 121 cannot rotate through the cooperation of the positioning block 122 and the positioning groove 11. The locking groove 123 is opened on the bottom of the hollow circular plate 121. The inner wall of the locking groove 123 is fixedly connected to the surface of the baffle 124. The side surface of the baffle 124 and the inner wall of the locking groove 123 are both in contact with the surface of the locking plate 10. When the locking plate 10 is inserted into the locking groove 123, the hollow circular plate 121 is tightly fitted to the bearing outer ring 1 through the cooperation of the locking plate 10, the locking groove 123 and the baffle 124.

[0030] When the second nut 6 is in contact with the outer ring 1 of the bearing, the locking plate 10 can be fixed in the locking groove 123 on the hollow circular plate 121 through the second nut 6, and the positioning block 122 can be fixed in the positioning groove 11 through the cooperation of the locking plate 10 and the baffle 124. At this time, the hollow circular plate 121 can be fixed on the outer ring 1 of the bearing through the cooperation of the locking plate 10, the locking groove 123, the baffle 124, the positioning block 122 and the positioning groove 11. The connection between the outer ring 1 of the bearing and the retaining frame 4 and the connection between the inner ring 3 of the bearing and the retaining frame 4 are sealed by the hollow circular plate 121. When the second nut 6 is moved down to the appropriate position, the locking plate 10 can be separated from the locking groove 123 by moving the locking plate 10, and the hollow circular plate 121 can be directly separated from the outer ring 1 of the bearing.

[0031] like Figures 1 to 8As shown, the telescopic rod 5 includes a threaded column 51, a threaded barrel 52, a hollow bearing rod 53, a first groove 54, a second groove 55, a first cylinder 56, a barrel 57 and a first nut 58. The top of the threaded column 51 is fixedly connected to the bottom of the bearing outer ring 1, the surface of the threaded column 51 is threadedly connected to the inner wall of the second nut 6, the surface of the threaded column 51 is threadedly connected to the inner wall of the threaded barrel 52, and the bottom of the threaded barrel 52 is fixedly connected to the upper surface of the hollow bearing rod 53. The first groove 54 is provided on the bottom of the threaded column 51, and the second groove 55 is provided on the top of the threaded barrel 52. The inner wall of the first groove 54 and the inner wall of the second groove 55 are both fitted with the surface of the first cylinder 56. The front and rear ends of the first cylinder 56 are fixedly connected to the inner wall of the barrel 57. The inner wall of the barrel 57 is fitted with the surface of the threaded barrel 52. The upper surface of the barrel 57 is fitted with the bottom of the first nut 58, and the inner wall of the first nut 58 is threadedly connected to the surface of the threaded column 51.

[0032] The axis of the threaded barrel 52 coincides with the axis of the hollow bearing rod 53 , and the outer diameter of the threaded barrel 52 is equal to the outer diameter of the hollow bearing rod 53 .

[0033] It should be noted that the first groove 54 allows the first cylinder 56 to only move upward or downward. When the first cylinder 56 is separated from the second groove 55, the distance between the hollow bearing rod 53 and the threaded column 51 can be changed by rotating the threaded barrel 52. When the distance between the hollow bearing rod 53 and the threaded column 51 is adjusted to an appropriate size, the first cylinder 56 is inserted into the second groove 55. At this time, through the cooperation of the first groove 54, the second groove 55 and the second cylinder 9, the threaded barrel 52 cannot be rotated, and the distance between the hollow bearing rod 53 and the threaded column 51 cannot be changed. At the same time, by rotating the second nut 6, the second nut 6 can be moved upward or downward. When the second nut 6 presses the cylinder 57, the first cylinder 56 can be fixed in the second groove 55 through the cooperation of the second nut 6 and the threaded column 51. When the distance between the second nut 6 and the cylinder 57 is greater than the depth of the second groove 55, the first cylinder 56 can be separated from the second groove 55.

[0034] When assembling the dustproof rod end joint bearing: first, by rotating the second nut 6, the distance between the second nut 6 and the bearing outer ring 1 reaches an appropriate size, and by moving the locking plate 10, the locking plate 10 is fit with the second nut 6, then, the hollow circular plate 121 is placed on the side of the bearing outer ring 1, and the positioning block 122 is inserted into the positioning groove 11, and then, by moving the locking plate 10, the locking plate 10 is inserted into the locking groove 123, and the second nut 6 is used to make the second nut 6 contact with the bearing outer ring 1, at this time, the locking plate 10 is fixed in the locking groove 123 by the second nut 6, and the hollow circular plate 121 can be fixed on the bearing outer ring 1 by the cooperation of the locking plate 10, the locking groove 123, the baffle 124, the positioning groove 11 and the positioning block 122, at this time, the connection between the bearing outer ring 1 and the retainer 4 and the connection between the bearing inner ring 3 and the retainer 4 are sealed by the hollow circular plate 121, and dust cannot enter the dustproof rod end joint bearing.

[0035] When the hollow circular plate 121 needs to be removed, first rotate the second nut 6 to make the distance between the second nut 6 and the bearing outer ring 1 reach an appropriate size, and move the locking plate 10 to separate the locking plate 10 from the locking groove 123. When the locking plate 10 is separated from the locking groove 123, the hollow circular plate 121 can be directly removed from the bearing outer ring 1.

[0036] When the length of the dustproof rod end joint bearing needs to be adjusted, first loosen the cylinder 57 by turning the first nut 58, then separate the first cylinder 56 from the second groove 55 by moving the cylinder 57, and change the length of the telescopic rod 5 by turning the threaded cylinder 52. When the length of the telescopic rod 5 is adjusted to an appropriate size, first insert the first cylinder 56 into the second groove 55, then press the cylinder 57 by turning the first nut 58. At this time, the first cylinder 56 can be fixed in the second groove 55 by the first bolt, and the threaded cylinder 52 cannot rotate because of the cooperation of the first groove 54, the second groove 55 and the first cylinder 56.

[0037] The above description is merely a preferred embodiment of the present invention. It should be noted that those skilled in the art may make various improvements and modifications without departing from the principles of the present invention, and such improvements and modifications should be considered within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described or explained in this invention shall, unless otherwise specified or limited, be implemented in accordance with conventional means in the art.

Claims

1. A dustproof rod end joint bearing, characterized by: The invention comprises a bearing outer ring (1), a spherical roller (2) is fitted on the inner wall of the bearing outer ring (1), a bearing inner ring (3) is fitted on the surface of the spherical roller (2), a retaining frame (4) is fitted on the inner wall of the bearing outer ring (1), the surface of the spherical roller (2) and the surface of the bearing inner ring (3), a telescopic rod (5) is fixedly connected to the bottom of the bearing outer ring (1), a second nut (6) is threadedly connected to the surface of the telescopic rod (5), a guide ring (7) is fixedly connected to the left and right sides of the bearing outer ring (1), and a strip is opened inside the bearing outer ring (1). The strip-shaped hole (8) is provided with a second cylinder (9) on the inner wall of the strip-shaped hole (8), and the two ends of the second cylinder (9) are fixedly connected with a locking plate (10), the inner wall of the guide ring (7) and the upper surface of the second nut (6) are both in contact with the surface of the locking plate (10), and the left and right sides of the bearing outer ring (1) are provided with positioning grooves (11), and the inner wall of the positioning groove (11), the left and right sides of the bearing outer ring (1) and the left and right sides of the bearing inner ring (3) are all in contact with a sealing plate (12), and the inner wall of the sealing plate (12) is in contact with the surface of the locking plate (10).

2. The dustproof rod end joint bearing according to claim 1, characterized in that: The telescopic rod (5) comprises a threaded column (51), a threaded barrel (52), a hollow bearing rod (53), a first groove (54), a second groove (55), a first cylinder (56), a cylinder (57) and a first nut (58). The top of the threaded column (51) is fixedly connected to the bottom of the bearing outer ring (1). The surface of the threaded column (51) is threadedly connected to the inner wall of the second nut (6). The surface of the threaded column (51) is threadedly connected to the inner wall of the threaded barrel (52). The bottom of the threaded barrel (52) is fixedly connected to the upper surface of the hollow bearing rod (53). The first The groove (54) is formed on the bottom of the threaded column (51), and the second groove (55) is formed on the top of the threaded cylinder (52). The inner wall of the first groove (54) and the inner wall of the second groove (55) are both fitted with the surface of the first cylinder (56). The front and rear ends of the first cylinder (56) are fixedly connected to the inner wall of the cylinder (57). The inner wall of the cylinder (57) is fitted with the surface of the threaded cylinder (52). The upper surface of the cylinder (57) is fitted with the bottom of the first nut (58). The inner wall of the first nut (58) is threadedly connected to the surface of the threaded column (51).

3. The dustproof rod end joint bearing according to claim 1, characterized in that: The sealing plate (12) includes a hollow circular plate (121), a positioning block (122), a locking groove (123) and a baffle (124); the left and right sides of the bearing outer ring (1) and the left and right sides of the bearing inner ring (3) are both fitted with the side of the hollow circular plate (121); the side of the hollow circular plate (121) is fixedly connected to the side of the positioning block (122); the surface of the positioning block (122) is fitted with the inner wall of the positioning groove (11); the locking groove (123) is provided on the bottom of the hollow circular plate (121); the inner wall of the locking groove (123) is fixedly connected to the surface of the baffle (124); the side of the baffle (124) and the inner wall of the locking groove (123) are both fitted with the surface of the locking plate (10).

4. The dustproof rod end joint bearing according to claim 3, characterized in that: The center of the hollow circular plate (121) is on the same horizontal line as the center of the bearing inner ring (3), and the inner diameter of the hollow circular plate (121) is greater than the inner diameter of the bearing inner ring (3).

5. The dustproof rod end joint bearing according to claim 2, characterized in that: The axis of the threaded barrel (52) coincides with the axis of the hollow bearing rod (53), and the outer diameter of the threaded barrel (52) is equal to the outer diameter of the hollow bearing rod (53).

6. The dustproof rod end joint bearing according to claim 3, characterized in that: The positioning block (122) is a tapered block, and the shape of the positioning block (122) is the same as that of the positioning groove (11).

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