Universal joint roller bearing

Abstract

The utility model discloses a universal joint roller bearing, and relates to the technical field of roller bearings, the universal joint roller bearing comprises an outer ring, an inner ring arranged in the outer ring, a plurality of rotating rollers rotationally arranged between the outer ring and the inner ring, and a retaining mechanism arranged among the plurality of rotating rollers, and an oil storage groove for storing lubricating grease is formed in the outer ring; an oil inlet hole communicated with the oil storage groove is formed in the outer side of the outer ring; the plug rod and other components are pushed into the oil storage tank through tools such as a needle cylinder injector, so that the plug rod is separated from the oil inlet hole, a worker can conveniently fill oil into the oil storage tank through the smooth oil inlet hole, the tools such as the needle cylinder injector are pulled out of the outer ring after oil filling, and at the moment, under the elastic force of the spring, the plug rod is pushed into the oil storage tank. The plugging rod can be inserted into the oil inlet hole for plugging, a worker inserts or pulls tools such as a needle cylinder injector into or out of the oil inlet hole and presses the needle cylinder to inject oil, the adding process of the lubricating grease can be completed, and more convenience and rapidness are achieved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of roller bearings, in particular to a universal joint roller bearing. BACKGROUND

[0002] A universal joint roller bearing is a mechanical structure that uses spherical or cylindrical connections to achieve power transmission between different shafts. It is often used in conjunction with a transmission shaft. It is an important component of automobile bearings and plays a crucial role in the drive system. The roller bearing is usually installed between the universal joint and the connecting fork. The universal joint and the connecting fork will drive the bearing to rotate during operation, reducing the resistance and wear during rotation through the inner or outer ring of the bearing.

[0003] The patent with publication number CN216642814U discloses a bolt type support shaft roller bearing, which includes a rotating bolt. The rotating bolt has an outer ring on one side surface, and a retaining ring on one side. The utility model adds an oil storage groove structure inside the outer ring. Personnel inject lubricating grease into the oil storage groove. When the lubricating grease is at high temperature or subjected to external force exceeding a certain limit, it will flow like a liquid. When the roller bearing rotates at high speed, it will generate high temperature under high-speed rotation. The high temperature will transfer heat to the lubricating grease inside the oil storage groove, causing the lubricating grease to flow to the transmission roller through the oil outlet, thereby coating the inside of the roller bearing with lubricating grease. Therefore, personnel do not need to disassemble the roller bearing, thereby improving the work efficiency of personnel.

[0004] According to the related technology in the above, the inventor believes that when adding lubricating grease, the fixed screw needs to be unscrewed first using a screwdriver, then a needle cylinder syringe or other tools are used to inject lubricating grease into the oil storage groove through the oil inlet, and then the fixed screw is screwed back to the original position. However, the screw needs to be rotated back and forth during the lubricating grease adding process, which is time-consuming and inconvenient, and therefore needs to be improved. UTILITY MODEL CONTENTS

[0005] To solve the above problems, the present application provides a universal joint roller bearing.

[0006] The universal joint roller bearing provided by the present application adopts the following technical scheme:

[0007] The universal joint roller bearing comprises an outer ring, an inner ring arranged in the outer ring, a plurality of rotating rollers rotatably arranged between the outer ring and the inner ring, and a retaining mechanism arranged between the plurality of rotating rollers, an oil storage groove for storing lubricating grease is arranged in the outer ring, an oil inlet hole communicating with the oil storage groove is arranged on the outer side of the outer ring, an oil outlet hole for sending the lubricating grease in the oil storage groove to the space between the rotating rollers is arranged on the inner side of the outer ring, a plugging mechanism is arranged between the oil storage groove and the oil inlet hole of the outer ring, the plugging mechanism comprises a movable plate slidably arranged in the oil storage groove of the outer ring, a plugging rod fixedly arranged on one side of the movable plate and matched with the oil inlet hole, and a spring fixedly arranged between the other side of the movable plate and the inner wall of the oil storage groove of the outer ring.

[0008] The oil outlet hole is conical, and the movable plate is internally provided with a dredging mechanism for dredging the oil outlet hole after the movable plate moves.

[0009] By adopting the above technical scheme, the plugging rod and other components are pushed into the oil storage groove by using a syringe and other tools, so that the plugging rod is separated from the oil inlet hole, the oil in the oil storage groove is conveniently added through the unblocked oil inlet hole, the syringe and other tools are pulled out from the outer ring after the oil is added, at this time, the plugging rod can be inserted into the oil inlet hole to block the oil inlet hole under the elastic force of the spring, and the lubricating grease adding process is completed.

[0010] Preferably, the retaining mechanism comprises a retainer mounted between the plurality of rotating rollers, the retainer is located between the outer ring and the inner ring, and two annular dustproof covers are rotatably arranged between the two sides of the outer ring and the inner ring.

[0011] By adopting the above technical scheme, the two sets of dustproof cover movable plates can fill and shield the gaps on the two sides of the outer ring movable plate and the inner ring movable plate, so that external dust is not easy to enter the bearing, and the service life of the bearing is prolonged.

[0012] Preferably, one end of the oil inlet hole of the outer ring is provided with an enlarged hole communicating with the oil storage groove, and an annular sealing plate matched with the enlarged hole is fixedly arranged between the outer wall of the plugging rod.

[0013] By adopting the above technical scheme, the enlarged hole can enlarge one end of the oil inlet hole, so that the plugging rod can be directly pushed into the oil storage groove by using a syringe and other tools after the plugging rod is pushed, and the annular sealing plate moving with the plugging rod can block the enlarged hole after the oil is added, so that external foreign matters are not easy to enter the oil storage groove to contaminate the lubricating grease.

[0014] Preferably, a sliding groove is arranged in the movable plate, a spring sheet is fixedly arranged in the sliding groove of the movable plate, the dredging mechanism comprises a dredging rod slidably arranged in the sliding groove of the movable plate and movably abutting against one end of the oil outlet hole, one end of the dredging rod away from the inner ring is fixedly connected with one end of the spring sheet, and the other end of the dredging rod is provided with a guide arc surface.

[0015] Through the above technical scheme, after the movable plate moves with the plug rod, the dredging rod inside the movable plate will be inserted into the oil outlet hole under the elastic force of the elastic sheet, and cooperates with the movement of the plug rod and the annular sealing plate, can dredge the oil channel of the grease oil inlet hole and the oil outlet hole, so that the oil channel is not easy to be blocked by impurities and cannot continue to lubricate the bearing.

[0016] In summary, the present application includes at least one of the following beneficial technical effects:

[0017] 1. Use a syringe injector and other tools to push the plug rod and other components into the oil storage tank, so that the plug rod is separated from the oil inlet hole, and the staff can add oil to the oil storage tank through the unblocked oil inlet hole. After adding oil, the syringe injector and other tools are pulled out of the outer ring. At this time, under the elastic force of the spring, the plug rod can be inserted into the oil inlet hole for plugging. The staff inserts or pulls out the oil inlet hole and presses the syringe to add oil, which can complete the process of adding grease more conveniently and quickly.

[0018] 2. By expanding the hole, one end of the oil inlet hole can be expanded, which is convenient for the syringe injector and other tools to push the plug rod to directly inject oil into the oil storage tank. After adding oil, the annular sealing plate moving with the plug rod can block the expanded hole, so that foreign matter from the outside cannot enter the oil storage tank to contaminate the grease. After the movable plate moves with the plug rod, the dredging rod inside the movable plate will be inserted into the oil outlet hole under the elastic force of the elastic sheet, and cooperates with the movement of the plug rod and the annular sealing plate, can dredge the oil channel of the grease oil inlet hole and the oil outlet hole, so that the oil channel is not easy to be blocked by impurities and cannot continue to lubricate the bearing, convenient and practical. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the gimbal roller bearing of the embodiment of the present application;

[0020] Figure 2 It is a schematic diagram of the internal structure of the gimbal roller bearing of the embodiment of the present application;

[0021] Figure 3 It is a schematic diagram of the internal structure of the gimbal roller bearing of the embodiment of the present application; Figure 2 It is an enlarged view of the structure of A in the embodiment of the present application;

[0022] Figure 4 It is an enlarged view of the structure of B in the embodiment of the present application; Figure 3

[0023] Reference signs: 1, outer ring; 11, oil storage tank; 12, oil inlet hole; 13, oil outlet hole; 14, expanded hole; 2, inner ring; 3, rotating roller; 4, retainer; 5, dust cover; 6, movable plate; 61, plug rod; 62, spring; 63, annular sealing plate; 64, sliding groove; 65, elastic sheet; 66, dredging rod. DETAILED DESCRIPTION ​

[0024] The application will be further described in detail below with reference to the accompanying drawings. Figures 1-4 The application will be further described in detail below with reference to the accompanying drawings.

[0025] The application discloses a universal joint roller bearing.

[0026] The universal joint roller bearing, referring to Figures 1-3 , comprises an outer ring 1, an inner ring 2, a plurality of rotating rollers 3 and a retaining mechanism, the inner ring 2 is arranged in the outer ring 1, the inner ring 2 and the outer ring 1 can rotate relative to each other, the rotating roller 3 can be in a cylindrical shape, the plurality of rotating rollers 3 are rotatably arranged between the outer ring 1 and the inner ring 2, the retaining mechanism comprises a retainer 4 mounted between the plurality of rotating rollers 3, the retainer 4 can connect the plurality of rotating rollers 3, the retainer 4 is located between the outer ring 1 and the inner ring 2, the outer ring 1, the inner ring 2, the rotating roller 3 and the retainer 4 form the existing roller bearing, which can be applied to the universal joint of a transmission shaft, the specific internal structure and principle of the roller bearing have been disclosed, and thus will not be described here in detail.

[0027] Referring to Figures 1-3 , two groups of dustproof covers 5 are rotatably arranged between the outer ring 1 and the inner ring 2, the two groups of dustproof covers 5 can fill and shield the gaps on the two sides of the outer ring 1 and the inner ring 2, so that external dust is not easy to enter the bearing, thereby prolonging the service life of the bearing.

[0028] Referring to Figures 2-4 , the outer ring 1 is provided with an oil storage groove 11 for storing lubricating grease, the outer ring 1 is provided with an oil inlet hole 12 on the outer side and in communication with the oil storage groove 11, and the outer ring 1 is provided with an oil outlet hole 13 on the inner side and used for sending the lubricating grease in the oil storage groove 11 to the space between the rotating rollers 3, the oil outlet hole 13 is tapered, and the diameter of the oil outlet hole 13 gradually decreases from the outer ring 1 to the inner ring 2.

[0029] The needle syringe and other tools can inject lubricating grease into the oil storage groove 11, because the lubricating grease will flow like a liquid when the temperature is high or the external force exceeds a certain limit, when the roller bearing rotates at high speed, the roller bearing will generate high temperature under high-speed rotation, the high temperature will transfer heat to the lubricating grease in the oil storage groove 11, so that the lubricating grease flows to the rotating rollers 3 through the oil outlet hole 13, thereby coating the inside of the roller bearing with lubricating grease, and when the roller bearing stops high-speed rotation, the lubricating grease will cool and solidify, thereby stopping flowing into the inside of the roller bearing through the oil outlet hole 13.

[0030] Referring to Figures 2-4The oil storage groove 11 of the outer ring 1 is provided with a blocking mechanism between the oil inlet hole 12, the blocking mechanism comprising a movable plate 6 slidably arranged in the oil storage groove 11 of the outer ring 1, a blocking rod 61 fixedly arranged on one side of the movable plate 6 and matched with the oil inlet hole 12, and a spring 62 fixedly arranged between the other side of the movable plate 6 and the inner wall of the oil storage groove 11 of the outer ring 1, the movable plate 6 being connected to the blocking rod 61 and the spring 62, and the blocking rod 61 being inserted into the matched oil inlet hole 12 under the elastic force of the spring 62 to block the oil inlet hole 12.

[0031] With reference to Figures 2-4 One end of the oil inlet hole 12 of the outer ring 1 is provided with an enlarged hole 14 communicated with the oil storage groove 11, and an annular sealing plate 63 matched with the enlarged hole 14 is fixedly arranged on the outer wall of the blocking rod 61, the connection between the annular sealing plate 63 and the enlarged hole 14 being arranged at the sealing element, the enlarged hole 14 being capable of enlarging one end of the oil inlet hole 12 to facilitate the injection of the lubricating grease into the enlarged hole 14 through the side needle hole after the blocking rod 61 is pushed by a syringe or the like, the lubricating grease in the enlarged hole 14 being capable of flowing into the oil storage groove 11 to directly inject the lubricating grease, and the annular sealing plate 63 moving with the blocking rod 61 after the lubricating grease is injected being capable of blocking the enlarged hole 14 to prevent foreign matters from entering the oil storage groove 11 to contaminate the lubricating grease.

[0032] When the lubricating grease is added, the blocking rod 61 and the like can be pushed into the oil storage groove 11 by a syringe or the like to separate the blocking rod 61 from the oil inlet hole 12, so that the lubricating grease can be added into the oil storage groove 11 through the unblocked oil inlet hole 12, and the syringe or the like is pulled out of the outer ring 1 after the lubricating grease is added, at which time the blocking rod 61 is inserted into the oil inlet hole 12 and the annular sealing plate 63 is inserted into the enlarged hole 14 under the elastic force of the spring 62 to block the oil inlet hole 12 and the enlarged hole 14.

[0033] With reference to Figures 2-4 The movable plate 6 is provided with a sliding groove 64, and the sliding groove 64 of the movable plate 6 is fixedly provided with a spring piece 65, and the movable plate 6 is provided with a dredging mechanism for dredging the oil outlet hole 13 after the movable plate 6 is moved, the dredging mechanism comprising a dredging rod 66 slidably arranged in the sliding groove 64 of the movable plate 6 and movably abutting against one end of the oil outlet hole 13, the other end of the dredging rod 66 being provided with a guide arc surface, and the guide arc surface being capable of reducing the contact area between the dredging rod 66 and the inclined surface in the oil outlet hole 13 to reduce the resistance and abrasion between the dredging rod 66 and the inclined surface in the oil outlet hole 13 when the dredging rod 66 is moved.

[0034] When the tool such as the syringe is inserted into the oil inlet hole 12 of the outer ring 1, the movable plate 6 moving with the plug rod 61 will move to one side of the oil outlet hole 13, and the dredging rod 66 will be inserted into the tapered oil outlet hole 13 under the elastic force of the elastic sheet 65 to dredge the oil outlet hole 13. When the tool such as the syringe is pulled away from the outer ring 1, the dredging rod 66 will be pressed into the sliding groove 64 and pressed out of the oil outlet hole 13 under the elastic force of the spring 62 and the inclined surface guide of the tapered oil outlet hole 13, to ensure the normal movement of the movable plate 6.

[0035] The implementation principle of the gimbal roller bearing in the embodiment of the application is as follows:

[0036] When the roller bearing rotates at high speed, the roller bearing will generate high temperature under high-speed rotation, and the generated high temperature will transfer heat to the lubricating grease in the oil storage groove 11, so that the lubricating grease flows to the rotating roller 3 through the oil outlet hole 13, thereby coating the inside of the roller bearing with lubricating grease. When the roller bearing stops high-speed rotation, the lubricating grease will cool and solidify, thereby stopping flowing into the inside of the roller bearing through the oil outlet hole 13.

[0037] When it is necessary to add lubricating oil to the bearing, the worker can use a tool such as a syringe to push the plug rod 61 and other components into the oil storage groove 11, so that the plug rod 61 is separated from the oil inlet hole 12, and the worker can add oil to the oil storage groove 11 through the unblocked oil inlet hole 12. After oiling, the tool such as the syringe is pulled out of the outer ring 1, and at this time the plug rod 61 can be inserted into the oil inlet hole 12 and the annular sealing plate 63 can be inserted into the enlarged hole 14 under the elastic force of the spring 62, to block the oil inlet hole 12 and the enlarged hole 14.

[0038] And after the movable plate 6 moves with the plug rod 61, the dredging rod 66 in the movable plate 6 will be inserted into the oil outlet hole 13 under the elastic force of the elastic sheet 65, and in cooperation with the movement of the plug rod 61 and the annular sealing plate 63, the oil passage of the lubricating grease in the oil inlet hole 12, the enlarged hole 14 and the oil outlet hole 13 can be dredged, so that the oil passage is not easily blocked by impurities from the outside or impurities in low-quality lubricating oil, and the bearing cannot be continuously lubricated.

[0039] The above are preferred embodiments of the application, which do not limit the protection scope of the application, so that: any equivalent changes made on the structure, shape, principle of the application should be covered within the protection scope of the application.

Claims

1. A universal joint roller bearing, comprising an outer ring (1), an inner ring (2) disposed within the outer ring (1), a plurality of rotating rollers (3) rotatably disposed between the outer ring (1) and the inner ring (2), and a retaining mechanism disposed between the plurality of rotating rollers (3), wherein the outer ring (1) has an oil reservoir (11) for storing grease, an oil inlet (12) communicating with the oil reservoir (11) is provided on the outer side of the outer ring (1), and an oil outlet (13) for feeding the grease in the oil reservoir (11) into the space between the rotating rollers (3) is provided on the inner side of the outer ring (1), characterized in that: A sealing mechanism is provided between the oil storage tank (11) and the oil inlet (12) of the outer ring (1). The sealing mechanism includes a movable plate (6) that is slidably disposed in the oil storage tank (11) of the outer ring (1), a plug rod (61) that is fixedly disposed on one side of the movable plate (6) and adapted to the oil inlet (12), and a spring (62) that is fixedly disposed on the other side of the movable plate (6) and between the inner wall of the oil storage tank (11) of the outer ring (1). The oil outlet (13) is conical, and the movable plate (6) is provided with a clearing mechanism for clearing the oil outlet (13) after the movable plate (6) moves.

2. The universal joint roller bearing according to claim 1, characterized in that: The retaining mechanism includes a retainer (4) mounted between a plurality of the rotating rollers (3), the retainer (4) being located between an outer ring (1) and an inner ring (2).

3. The universal joint roller bearing according to claim 1, characterized in that: Two sets of annular dustproof covers (5) are provided between the outer ring (1) and the inner ring (2) on both sides.

4. The universal joint roller bearing according to claim 1, characterized in that: The outer ring (1) has an enlarged hole (14) at one end of the oil inlet (12) that communicates with the oil storage tank (11), and an annular sealing plate (63) that is adapted to the enlarged hole (14) is fixed between the outer walls of the plug rod (61).

5. The universal joint roller bearing according to claim 1, characterized in that: The movable plate (6) is provided with a sliding groove (64), and a spring piece (65) is fixedly provided in the sliding groove (64) of the movable plate (6).

6. The universal joint roller bearing according to claim 5, characterized in that: The unblocking mechanism includes an unblocking rod (66) that is slidably disposed in a groove (64) of a movable plate (6) and whose one end is movably abutted against an oil outlet (13).

7. The universal joint roller bearing according to claim 6, characterized in that: The end of the unblocking rod (66) facing away from the inner ring (2) is fixedly connected to one end of the spring piece (65), and the other end of the unblocking rod (66) is provided with a guide arc surface.

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