Roller bearing with adjustable gap

Abstract

The invention discloses a gap-adjustable roller bearing, and relates to the technical field of bearings, the gap-adjustable roller bearing comprises a bearing outer disc, a roller is arranged on the inner wall of the bearing outer disc, a bearing inner disc is arranged in the bearing outer disc, a groove is formed in the inner wall of the bearing outer disc, and the roller is slidably connected to the inner wall of the groove; the outer wall of the bearing inner disc is fixedly connected with a baffle ring, and relates to the technical field of bearings, by arranging a gap adjusting mechanism, when a roller is propped by rolling wheels, the distance between the roller and the bearing outer disc is increased, the rotation of the roller is not completed by rolling on the roller any more, but by the rotation of the left and right rolling wheels propped against the roller, the bearing inner disc can rotate, and the bearing inner disc can rotate more stably. According to the roller gap adjusting device, the roller keeps rotating motion while rolling on the inner wall of the groove, so that the rolling wheel can stably rotate, the mode of adjusting the gap of the roller can be achieved in the mode of stably and rapidly completing the mode of adding a gasket without disassembling, and rapid adjustment can be achieved without disassembling.

Description

Technical Field

[0001] The invention relates to the technical field of bearings, in particular to a roller bearing with adjustable clearance. Background Art

[0002] Roller bearings are a type of bearing that makes circumferential contact with a number of rollers usually mounted on a retaining ring when the shaft journal rotates. Roller bearings can achieve good accuracy and rigidity through preload. And a tapered inner ring can also be used to adjust the working clearance of the bearing at will. This solution can fully meet the requirement of zero clearance of the roller bearing of the printing machine; A roller bearing described in a patent application with publication number CN104006072B comprises an outer ring and an inner ring respectively having a rolling groove, and a plurality of rollers, each of the rolling grooves having two mutually perpendicular track surfaces, the rollers being able to be simultaneously arranged in the rolling grooves of the outer ring and the inner ring in rolling contact with the track surfaces of the outer ring and the inner ring, so that the outer ring and the inner ring can be coupled to each other in a relatively rotatable manner; the roller bearing is characterized in that the outer ring and the inner ring respectively have a groove located between the two track surfaces and recessed from the two track surfaces.

[0003] Currently, when adjusting the clearance of a roller bearing, the bearing needs to be disassembled, a gasket needs to be added inside, and then it needs to be installed to adjust the clearance of the roller bearing. However, this adjustment method is troublesome and requires disassembly and assembly. Frequent disassembly and assembly will cause deformation of the inner and outer rings of the bearing and the roller, thereby increasing the rotational friction of the bearing itself. Summary of the invention

[0004] In view of the deficiencies in the prior art, the present invention provides a roller bearing with adjustable clearance, thereby achieving the purpose of solving the above-mentioned problems.

[0005] To achieve the above purpose, the present invention is implemented through the following technical solutions: a roller bearing with adjustable clearance comprises a bearing outer disk, the inner wall of the bearing outer disk is provided with rollers, a bearing inner disk is provided inside the bearing outer disk, a groove is opened on the inner wall of the bearing outer disk, the roller is slidably connected to the inner wall of the groove, a retaining ring is fixedly connected to the outer wall of the bearing inner disk, and a clearance adjustment mechanism is provided inside the bearing inner disk; The gap adjustment mechanism comprises: A thread groove, wherein the thread groove is an annular groove, the thread groove is opened on the inner wall of the bearing inner disk, the inner wall of the bearing inner disk is provided with an annular groove, the annular groove is an annular groove, a sliding block is arranged inside the bearing inner disk, and the sliding block has a plate-like structure; The rolling wheel is a circular columnar structure, the rolling wheel is slidably connected inside the sliding block, the rolling wheel is used to resist the roller to limit the position of the roller, and the sliding block is slidably connected to the inner wall of the bearing inner disk.

[0006] Preferably, an inclined surface is formed on one side of the sliding block, and the inclined surface is in a slope shape. A spring is fixedly connected to one side of the inclined surface, and the spring is used to reset the inclined surface.

[0007] Preferably, a first sliding groove is provided on the inner wall of the bearing inner disk, one side of the inner wall of the first sliding groove is fixedly connected to one end of the spring, and the top and bottom of the sliding block are slidably connected to the top and bottom of the inner wall of the annular groove.

[0008] Preferably, an inner wall of the inner disk of the bearing is fixedly connected with an inner fixing ring, and the inner fixing ring is used to fix with various rotating shafts.

[0009] Preferably, an auxiliary mechanism is provided on the inner wall of the thread groove, and the auxiliary mechanism comprises an annular sleeve, a ring plate is fixedly connected to the top of the annular sleeve, and a thread groove is provided on the outer wall of the annular sleeve.

[0010] Preferably, the annular sleeve is threadedly connected to the inner wall of the thread groove through the thread groove, and the bottom of the annular sleeve can contact the inclined surface of one side of the sliding block.

[0011] Preferably, a stopper is fixedly connected to the inner wall of the threaded groove, and the stopper is used to support the annular sleeve and limit the position of the annular sleeve.

[0012] Preferably, a second sliding groove is provided on the inner wall of the bearing inner disk, and the sliding block is slidably connected to the inner wall of the bearing inner disk via the second sliding groove, and the second sliding groove is used to linearly limit the sliding of the sliding block.

[0013] The present invention provides a roller bearing with adjustable clearance, which has the following beneficial effects: 1. The present invention sets a gap adjustment mechanism, and pushes out the rolling wheel and the sliding block, so that the outer wall of the rolling wheel can be pressed against the roller, so that when the roller is pressed against the rolling wheel, the distance between the roller and the outer disk of the bearing increases, and the rotation of the roller is no longer completed by rolling on the roller, but by the rotation of the left and right rolling wheels that press against the roller, so that the roller rolls on the inner wall of the groove while maintaining its own rotational motion, so that the rolling wheel can complete a stable rotation, thereby completing a stable and fast method of adjusting the gap of the roller without disassembling and adding gaskets, which does not require disassembly and can be adjusted quickly.

[0014] 2. The present invention provides a gap adjustment mechanism. When the rolling wheel acts as a gasket, the rolling wheel can rotate freely in the inner wall of the inclined surface, thereby avoiding the gasket being inserted therein to reduce the gap. The gasket specifications are different, which easily leads to the blocking of the roller rolling between the outer disk of the bearing and the inner disk of the bearing. The rolling wheel can rotate freely. When the rolling wheel is used as a gasket to reduce the gap between the roller and the surrounding area, no matter how far the rolling wheel is pushed out, the two rolling wheels will ensure the stability of the roller's rotation and rolling, avoiding the obstruction problem. 3. The present invention sets a gap adjustment mechanism. The two rolling wheels will push the rollers firmly and stably in one direction in a straight line to reduce the gap, avoiding the problem of position displacement and jamming of each roller when the gap is adjusted, and can effectively reduce the problem of friction caused by position displacement when adjusting the distance between the roller and the gasket.

[0015] 4. The present invention sets an auxiliary mechanism to push the inclined plane to the sliding block through its inclined surface, and the inclined plane and the sliding block are pushed toward the direction of the roller, thereby completing the function of adjusting the roller gap. The method is simple and convenient, and the adjustment can be completed by rotating the annular plate without disassembly. Even if the inner fixing ring of the inner wall of the inner disk of the bearing is fixed on the rotating shaft, the roller gap adjustment can be completed by rotating the annular plate, so that the corresponding roller gap can be adjusted according to the real-time working scene to achieve the best working state.

[0016] 5. The present invention sets an auxiliary mechanism so that the height of the roller is higher than the inner diameter height of the second sliding groove. Therefore, when the roller rolls on the outer wall of the inner disk of the bearing, it will not be affected by the gap of the second sliding groove, and can restore the rolling effect of the conventional bearing without adjusting the gap. While being able to freely adjust the gap, it can also be restored to the original state, so that the bearing can adapt to various working scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the present invention; Figure 2 It is a structural schematic diagram of the annular sleeve of the present invention; Figure 3 For the present invention Figure 2 A magnified image of point A; Figure 4 It is a schematic cross-sectional structure diagram of the gap adjustment mechanism of the present invention; Figure 5 It is a structural schematic diagram of the gap adjustment mechanism of the present invention; Figure 6 It is a structural schematic diagram of the sliding block of the present invention; Figure 7 It is a structural schematic diagram of the gap adjustment mechanism of the present invention; Figure 8 For the present invention Figure 4 A magnified view of point B; Fig. 9 It is a structural schematic diagram of the gap adjustment mechanism of the present invention; Fig.10 It is a structural schematic diagram of the gap adjustment mechanism of the present invention.

[0018] In the figure: 1 bearing outer disk, 2 rollers, 3 gap adjustment mechanism, 301 threaded groove, 302 annular groove, 303 sliding block, 304 rolling wheel, 305 inner fixed ring, 306 spring, 307 first sliding groove, 308 inclined surface, 4 auxiliary mechanism, 401 annular plate, 402 annular sleeve, 403 threaded groove, 404 stopper, 405 second sliding groove, 6 groove, 7 bearing inner disk. DETAILED DESCRIPTION

[0019] Example 1: Please refer to Figure 1-4 The present invention provides a technical solution: a roller bearing with adjustable clearance, comprising a bearing outer disk 1, a roller 2 is arranged on the inner wall of the bearing outer disk 1, a bearing inner disk 7 is arranged inside the bearing outer disk 1, a groove 6 is opened on the inner wall of the bearing outer disk 1, the roller 2 is slidably connected to the inner wall of the groove 6, a retaining ring 8 is fixedly connected to the outer wall of the bearing inner disk 7, and a clearance adjustment mechanism 3 is arranged inside the bearing inner disk 7; The clearance adjustment mechanism 3 comprises: The thread groove 301 is an annular groove, which is provided on the inner wall of the bearing inner disk 7. The inner wall of the bearing inner disk 7 is provided with an annular groove 302, which is an annular groove. A sliding block 303 is provided inside the bearing inner disk 7, and the sliding block 303 has a plate-like structure. The rolling wheel 304 is a circular columnar structure. The rolling wheel 304 is slidably connected to the inside of the sliding block 303. The rolling wheel 304 is used to resist the roller 2 to limit the position of the roller 2. The sliding block 303 is slidably connected to the inner wall of the bearing inner disk 7; When in use, the roller 2 is inserted between the outer disk 1 of the bearing and the inner disk 7 of the bearing and the retaining ring 8 is fixed to limit the roller 2 to ensure that the roller 2 will not slip out from between the outer disk 1 of the bearing and the inner disk 7 of the bearing, and the roller 2 will be embedded in the groove 6 to complete the limitation of the roller 2. When it is necessary to adjust the gap between the roller 2 and the outer disk 1 of the bearing and the inner disk 7 of the bearing, the rolling wheel 304 and the sliding block 303 are pushed out, so that the outer wall of the rolling wheel 304 can be pressed against the roller 2, so that when the roller 2 is pressed by the rolling wheel 304, the distance between the roller 2 and the outer disk 1 of the bearing increases, and the rotation of the roller 2 is no longer completed by rolling on the roller 2, but by the rotation of the left and right rolling wheels 304 that press against the roller 2, so that the roller 2 rolls on the inner wall of the groove 6 while maintaining its own rotational motion, so that the rolling wheel 304 can complete a stable rotation, thereby completing a stable and fast method of adjusting the gap of the roller 2 without disassembling and adding a gasket, which does not require disassembly and can be adjusted quickly; Example 2: Please refer to Figure 1-7 On the basis of the first embodiment, the present invention provides a technical solution: a slope 308 is formed on one side of the sliding block 303, and the slope 308 is in a slope shape. A spring 306 is fixedly connected to one side of the slope 308, and the spring 306 is used to reset the slope 308.

[0020] A first sliding groove 307 is formed on the inner wall of the bearing inner disk 7 , one side of the inner wall of the first sliding groove 307 is fixedly connected to one end of the spring 306 , and the top and bottom of the sliding block 303 are slidably connected to the top and bottom of the inner wall of the annular groove 302 .

[0021] The inner wall of the bearing inner disk 7 is fixedly connected with an inner fixing ring 305, and the inner fixing ring 305 is used to fix with various rotating shafts; When the rolling wheel 304 acts as a gasket, the rolling wheel 304 can rotate freely in the inner wall of the inclined surface 308, so as to avoid the gasket being inserted therein to reduce the gap, and the gasket specifications being different, which easily leads to the blocking of the rolling of the roller 2 between the outer bearing plate 1 and the inner bearing plate 7. The rolling wheel 304 can rotate freely. When the rolling wheel 304 is used as a gasket to reduce the gap between the roller 2 and the surrounding area, no matter how far the rolling wheel 304 is pushed out, the two rolling wheels 304 will ensure the stability of the rotation and rolling of the roller 2, avoiding the obstruction problem. The two rolling wheels 304 will push the roller 2 in a straight line to reduce the gap, avoid the problem of position deviation and jam of each roller 2 when adjusting the gap, and effectively reduce the friction problem caused by position deviation when adjusting the gap with the gasket; Example 3: Please refer to Figure 1-10On the basis of the first and second embodiments, the present invention provides a technical solution: an auxiliary mechanism 4 is arranged on the inner wall of the thread groove 301, the auxiliary mechanism 4 comprises an annular sleeve 402, an annular plate 401 is fixedly connected to the top of the annular sleeve 402, and a thread groove 403 is arranged on the outer wall of the annular sleeve 402.

[0022] The annular sleeve 402 is threadedly connected to the inner wall of the thread groove 301 through the thread groove 403 , and the bottom of the annular sleeve 402 can contact the inclined surface 308 on one side of the sliding block 303 .

[0023] A stopper 404 is fixedly connected to the inner wall of the thread groove 301 , and the stopper 404 is used to support the annular sleeve 402 and limit the position of the annular sleeve 402 .

[0024] The inner wall of the bearing inner disk 7 is provided with a second sliding groove 405, and the sliding block 303 is slidably connected to the inner wall of the bearing inner disk 7 through the second sliding groove 405. The second sliding groove 405 is used to play a linear limit role for the sliding of the sliding block 303; When the positions of the sliding block 303 and the rolling wheel 304 need to be adjusted, it is only necessary to hold the annular plate 401 by hand and rotate the annular plate 401 to drive the annular sleeve 402 to rotate. The annular sleeve 402 is then rotated and descended in the thread groove 301 of the inner wall of the bearing inner disk 7 through the thread groove 403, and is pushed onto the inclined surface 308 formed on one side of the sliding block 303, thereby pushing the inclined surface 308 to the sliding block 303 to be pushed and translated through its inclined surface, and the inclined surface 308 and the sliding block 303 are pushed toward the direction of the roller 2, thereby completing the function of adjusting the gap of the roller 2, and this method is simple and convenient, and the adjustment can be completed by rotating the annular plate 401 without disassembly. Even if the inner fixing ring 305 of the inner wall of the bearing inner disk 7 is fixed on the rotating shaft, the gap of the roller 2 can be adjusted by rotating the annular plate 401, so that the gap of the corresponding roller 2 can be adjusted according to the real-time working scene to achieve the best working state; The degree to which the sliding block 303 is pushed can be determined by the lifting and lowering of the annular sleeve 402. The more the annular sleeve 402 is lowered, the more the sliding block 303 is pushed out. At the same time, the degree to which the annular sleeve 402 is lowered will be limited by the stopper 404. When the annular sleeve 402 is lowered to the stopper 404, it cannot continue to lower and is stopped by the stopper 404 to achieve position limiting. When the annular sleeve 402 rises, the sliding block 303 will be pulled back by the elastic force of the spring 306, so that the sliding block 303 is pulled back to achieve the reset of the sliding block 303. When the annular sleeve 402 is fully risen and no longer touches and resists the sliding block 303, the sliding block 303 will be pulled by the spring 306 to drive the rolling wheel 304 to be completely retracted into the second sliding groove 405 in the bearing inner disk 7, so that it no longer extends out of the outside of the bearing inner disk 7 and no longer resists against the roller 2. At this time, when the roller 2 rolls, it will not rotate on the rolling wheel 304, but will roll on the outer wall of the bearing inner disk 7 to achieve the rotation of the rolling friction force. The height of the roller 2 is higher than the inner diameter height of the second sliding groove 405. Therefore, when the roller 2 rolls on the outer wall of the bearing inner disk 7, it will not be affected by the gap of the second sliding groove 405, and then the conventional bearing rolling effect in the state of not adjusting the gap can be restored. While the gap can be freely adjusted, it can also be restored to the original state, so that the bearing can adapt to various working scenarios.

[0025] The above are only preferred specific implementation modes of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical solutions and inventive concepts of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A roller bearing with adjustable clearance, comprising a bearing outer disk (1), the inner wall of the bearing outer disk (1) being provided with a roller (2), a bearing inner disk (7) being provided inside the bearing outer disk (1), a groove (6) being provided on the inner wall of the bearing outer disk (1), the roller (2) being slidably connected to the inner wall of the groove (6), characterized in that: A retaining ring (8) is fixedly connected to the outer wall of the bearing inner disk (7), and a clearance adjustment mechanism (3) is arranged inside the bearing inner disk (7); The gap adjustment mechanism (3) comprises: A thread groove (301), the thread groove (301) being an annular groove, the thread groove (301) being formed on the inner wall of the bearing inner disk (7), the inner wall of the bearing inner disk (7) being provided with an annular groove (302), the annular groove (302) being an annular groove, a sliding block (303) being provided inside the bearing inner disk (7), the sliding block (303) being a plate-shaped structure; The rolling wheel (304) is a circular columnar structure, the rolling wheel (304) is slidably connected to the inside of the sliding block (303), the rolling wheel (304) is used to resist the roller (2) to limit the position of the roller (2), and the sliding block (303) is slidably connected to the inner wall of the bearing inner disk (7).

2. The roller bearing with adjustable clearance according to claim 1, characterized in that: A slope (308) is formed on one side of the sliding block (303), and the slope (308) is in a slope shape. A spring (306) is fixedly connected to one side of the slope (308), and the spring (306) is used to reset the slope (308).

3. The roller bearing with adjustable clearance according to claim 2, characterized in that: The inner wall of the bearing inner disk (7) is provided with a first sliding groove (307), one side of the inner wall of the first sliding groove (307) is fixedly connected to one end of the spring (306), and the top and bottom of the sliding block (303) are slidably connected to the top and bottom of the inner wall of the annular groove (302).

4. The roller bearing with adjustable clearance according to claim 3, characterized in that: An inner fixing ring (305) is fixedly connected to the inner wall of the bearing inner disk (7), and the inner fixing ring (305) is used to fix with various rotating shafts.

5. The roller bearing with adjustable clearance according to claim 4, characterized in that: An auxiliary mechanism (4) is provided on the inner wall of the threaded groove (301), and the auxiliary mechanism (4) comprises an annular sleeve (402), a top of the annular sleeve (402) is fixedly connected to an annular plate (401), and an outer wall of the annular sleeve (402) is provided with a threaded groove (403).

6. The roller bearing with adjustable clearance according to claim 5, characterized in that: The annular sleeve (402) is threadedly connected to the inner wall of the thread groove (301) via the thread groove (403), and the bottom of the annular sleeve (402) can contact the inclined surface (308) on one side of the sliding block (303).

7. The roller bearing with adjustable clearance according to claim 6, characterized in that: A stopper (404) is fixedly connected to the inner wall of the threaded groove (301), and the stopper (404) is used to support the annular sleeve (402) and limit the position of the annular sleeve (402).

8. The roller bearing with adjustable clearance according to claim 7, characterized in that: The inner wall of the bearing inner disk (7) is provided with a second sliding groove (405), and the sliding block (303) is slidably connected to the inner wall of the bearing inner disk (7) via the second sliding groove (405), and the second sliding groove (405) is used to play a linear limiting role for the sliding of the sliding block (303).

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