CN221003505U

CN221003505U - Roller bearing

Info

Publication number: CN221003505U
Application number: CN202322547767.3U
Authority: CN
Inventors: 方国斌
Original assignee: Wenzhou Renben Motor Bearing Co ltd; Shanghai C&U Group Co Ltd; C&U Co Ltd
Current assignee: Wenzhou Renben Motor Bearing Co ltd; Shanghai C&U Group Co Ltd; C&U Co Ltd
Priority date: 2023-09-19
Filing date: 2023-09-19
Publication date: 2024-05-24
Anticipated expiration: 2033-09-19

Abstract

The utility model discloses a roller bearing, which comprises a mandrel and a roller, wherein the mandrel is used for being fixed on external equipment, the roller is used for being in transmission connection with external transmission equipment, the roller is sleeved on the mandrel, a rolling groove is formed between the outer peripheral wall of the mandrel and the inner peripheral wall of the roller, a speed-increasing bearing group is arranged in the rolling groove, the speed-increasing bearing group is used for increasing the rotation speed of the roller and reducing the friction torque between the roller and the mandrel, and an oil supplementing piece is arranged in the rolling groove, and is used for supplementing lubricating grease to the rolling groove during high-speed transmission of the roller. The utility model solves the problems that in the prior art, after the roller, the mandrel and the bearing are assembled, the bearing is easy to axially move relative to the roller, and oil in the bearing is not supplemented timely when the roller runs at a high speed, so that the phenomenon of oil shortage and dry rotation of the bearing occurs.

Description

Roller bearing

Technical Field

The utility model relates to the technical field of bearings, in particular to a roller bearing.

Background

In the mechanical equipment and the processing line of light industry such as textile machinery, printing machinery and the like, a roller is often used, the roller plays the roles of a tensioning wheel and an idler wheel and is used for compacting a belt and the like, but the roller in the prior art needs to be assembled with a mandrel and a bearing to be used, but the assembled roller and the mandrel are not in compact states, the bearing easily generates the phenomenon of axial movement on the roller when the roller runs at a high speed, and a large amount of grease in the bearing can be lost when the roller runs at a high speed, so that the bearing is dry and rotated due to oil shortage when the bearing is linked with the roller to run at a high speed, the bearing is further worn and scrapped at a high speed, and the mandrel and the roller can be scrapped directly due to the falling off of the bearing or the blocking of the bearing with the roller when the bearing is damaged.

Disclosure of utility model

Aiming at the defects of the prior art, the utility model provides a roller bearing, which aims at solving the problems that the bearing is easy to axially move relative to a roller after the roller, a mandrel and the bearing are assembled in the prior art, and oil in the bearing is not supplemented timely when the roller runs at a high speed, so that the phenomenon of oil shortage and dry rotation of the bearing occurs.

In order to achieve the above purpose, the utility model provides a roller bearing, which comprises a mandrel and a roller, wherein the mandrel is used for being fixed on external equipment, the roller is used for being in transmission connection with external transmission equipment, the roller is sleeved on the mandrel, a rolling groove is formed between the outer peripheral wall of the mandrel and the inner peripheral wall of the roller, a speed-increasing bearing group is arranged in the rolling groove, the speed-increasing bearing group is used for increasing the rotation speed of the roller and reducing the friction torque between the roller and the mandrel, and an oil supplementing piece is arranged in the rolling groove, and is used for supplementing lubricating grease to the rolling groove during high-speed transmission of the roller.

The technical scheme is beneficial in that: the accelerating bearing group is arranged in the rolling groove, namely between the roller and the mandrel, so that friction torque between the roller and the mandrel can be reduced when the roller rotates at a high speed, meanwhile, the accelerating bearing group is used as a linkage piece, the running efficiency of the roller relative to the mandrel can be effectively improved, and the oil supplementing piece is used for supplementing lubricating grease to the rolling groove during high-speed transmission of the roller, so that the phenomenon that the bearing is damaged and scrapped due to dry rotation of the bearing due to the fact that the grease in the bearing is lost during high-speed rotation of the roller is avoided.

The utility model further provides that: the speed-increasing bearing group comprises two rolling bearings arranged in a rolling groove, the two rolling bearings are oppositely arranged and are sleeved on a mandrel, a spacer bush is sleeved on the mandrel, the spacer bush is arranged between the two rolling bearings, and two side walls of the spacer bush are respectively arranged in a manner of being propped against the inner side walls of the inner rings of the two rolling bearings.

The technical scheme is beneficial in that: the setting of spacer among the above-mentioned technique is used for separating two antifriction bearing, avoids two antifriction bearing to push each other and collide and lead to the bearing running rate to descend at high-speed operation down at two antifriction bearing axial displacement, and then avoids gyro wheel running efficiency to receive the influence, is used for improving the running efficiency of gyro wheel relative dabber through the setting of two antifriction bearing simultaneously, can also bear the moment impact that the gyro wheel received when reducing friction moment.

The utility model further provides that: the limiting groove is formed in the left side of the inner peripheral wall of the roller in a circumferential direction, the clamping spring for the shaft is arranged in the limiting groove, the inner side wall of the clamping spring for the shaft is arranged in a propping manner with the outer side wall of the outer ring of the adjacent rolling bearing, the right side of the inner peripheral wall of the roller is provided with a flange in a circumferential direction, and the inner side wall of the flange is arranged in a propping manner with the outer side wall of the outer ring of the adjacent rolling bearing.

The technical scheme is beneficial in that: the clamping springs for the center shaft are sleeved in the limiting grooves, the inner side walls of the clamping springs for the shaft are arranged in a propping mode with the outer side walls of the outer rings of the adjacent rolling bearings, the outer rings of the two rolling bearings are limited through the combination of the flanges and the clamping springs for the shaft, and the axial displacement of the rolling bearings is limited by matching with the spacer, so that the influence on the running speed of the rollers due to the axial movement of the two rolling bearings during high-speed running is avoided.

The utility model further provides that: the spindle is sleeved with a baffle ring, the baffle ring is connected with the spindle, the baffle ring is arranged near the left side of the bearing group, the inner side wall of the baffle ring is arranged in a propping manner with the outer side wall of the inner ring of the adjacent rolling bearing, the tail end of the spindle is provided with a baffle plate, the baffle plate is coaxially aligned with the tail end of the spindle, a bolt is connected between the baffle plate and the spindle, and the inner side wall of the baffle plate is arranged in a propping manner with the outer side wall of the inner ring of the adjacent rolling bearing.

The technical scheme is beneficial in that: the combination of the baffle ring and the baffle plate in the technology realizes the limit of the inner ring of the rolling bearing, and the axial displacement of the rolling bearing is limited by the cooperation of the baffle ring, the baffle plate and the spacer bush, so that the running speed of the roller is prevented from being influenced.

The utility model further provides that: the roller is hollow and provided with an oil supplementing cavity, the oil supplementing piece comprises solid grease filled in the oil supplementing cavity, the oil supplementing cavity is provided with oil outlet holes corresponding to the two rolling bearings, and the oil outlet holes are communicated with the oil supplementing cavity.

The technical scheme is beneficial in that: when the roller runs at high speed, the working temperature of the roller is gradually increased, at the moment, the solid grease is gradually converted into liquid grease and flows onto the rolling bearing through the oil outlet, so that lubrication of the rolling bearing is realized, the phenomenon that the bearing is dry due to the fact that the grease is completely lost when the roller runs at high speed is avoided, and further the roller is prevented from being damaged due to scrapping of the bearing.

The utility model further provides that: the oil-spreading groove is formed in the position, corresponding to the oil outlet opening, of the inner peripheral wall of the roller in a recessed mode, the oil-spreading groove is communicated with the oil outlet, the radial cross section of the oil-spreading groove is trapezoidal, a deformation plate used for blocking or dredging the oil outlet is arranged at the joint of the oil outlet opening and the oil-spreading groove, the deformation plate is made of shape memory alloy materials, the radial cross section of the deformation plate is arranged in an arc shape, the deformation plate is provided with a first shape in a first temperature range, the deformation plate is provided with a second shape in a second temperature range, the deformation plate bends towards the direction of the oil outlet opening under the first shape to be placed into the oil outlet and block the oil outlet, the outer peripheral wall of the deformation plate is attached to the inner peripheral wall of the oil outlet under the first shape, the radial cross section of the oil outlet is square, and the deformation plate bends towards the direction of the rolling bearing to be placed into the oil-spreading groove and is communicated with the opening of the oil outlet.

The technical scheme is beneficial in that: when the bearing runs at a high speed, the temperature in the bearing can be gradually increased, the temperature range is a second temperature range, the deformable plate is provided with a second form under the second temperature range, the deformable plate is bent towards the rolling bearing under the second form, the outer peripheral wall of the deformable plate is not partially abutted against the inner peripheral wall of the oil outlet and is partially bent into the oil expansion groove, the oil expansion groove is communicated with the oil outlet, so that grease in the oil outlet can flow onto the rolling bearing to lubricate the rolling bearing, the phenomenon that the rolling bearing is dry due to oil shortage under running is avoided, meanwhile, the friction moment between the rolling wheel and the rolling bearing is reduced, and the running efficiency of the rolling wheel is improved; after the bearing stops running, the internal temperature of the bearing can be gradually reduced, the temperature range is a first temperature range, the deformation plate is provided with a first form under the first temperature range, and is bent towards the direction of the opening of the oil outlet and is put into the oil outlet to block the oil outlet under the first form, so that grease in the oil supplementing cavity is not overflowed to the rolling bearing, the phenomena of grease throwing and grease leakage caused by excessive grease in the bearing are avoided, and meanwhile, part of grease can return to the oil supplementing cavity, so that the utilization efficiency of the grease is improved; in the above technology, the radial section of the deformable plate is arranged in an arc shape, and the radial section of the oil outlet is arranged in a square shape, so that the outer peripheral wall of the deformable plate is in contact with the inner peripheral wall of the oil outlet under the first form, and the plugging of the oil outlet is realized.

The utility model further provides that: the deformation plate is arranged in a way that the outer peripheral wall surface of the deformation plate is in partial contact with the outer peripheral wall surface of the outer ring of the rolling bearing in the second state.

The technical scheme is beneficial in that: in the technology, the outer peripheral wall surface of the deformation plate is in partial contact with the outer peripheral wall surface of the outer ring of the rolling bearing under the second state, so that the deformation plate can be in partial contact with the outer peripheral wall of the outer ring of the rolling bearing under the second temperature range, and the deformation plate can be used for coating the surface grease when the grease flows to the surface of the rolling bearing, so that the grease on the outer ring of the rolling bearing can be uniformly coated, and the phenomenon of grease throwing and grease leakage of the rolling bearing is avoided.

The utility model further provides that: the rolling bearing is a deep groove ball bearing.

The technical scheme is beneficial in that: the arrangement of the deep groove ball bearing in the technology improves the running efficiency of the roller and reduces the friction moment between the roller and the mandrel.

The utility model further provides that: the utility model discloses a dabber, including dabber, dabber one end is for being used for the link that is connected with external equipment, dabber link is last to have the locating surface along dabber length direction horizontal cutting.

The technical scheme is beneficial in that: the setting of locating surface in above-mentioned technique improves the joint strength between dabber and the external equipment link to this dabber stability on external equipment.

Drawings

FIG. 1 is a cross-sectional view of the present utility model in use;

fig. 2 is a cross-sectional view of the present utility model in an unused state.

Detailed Description

The utility model provides a roller 2 bearing, which comprises a mandrel 1 used for being fixed on external equipment and a roller 2 used for being in transmission connection with external transmission equipment, wherein the roller 2 is sleeved on the mandrel 1, a rolling groove 11 is formed between the outer peripheral wall of the mandrel 1 and the inner peripheral wall of the roller 2, a speed-increasing bearing group used for increasing the rotation speed of the roller 2 and reducing the friction torque between the roller 2 and the mandrel 1 is arranged in the rolling groove 11, an oil-supplementing piece used for supplementing lubricating grease to the rolling groove 11 during high-speed transmission of the roller 2 is arranged in the rolling groove 11, the speed-increasing bearing group comprises two rolling bearings 3 arranged in the rolling groove 11, the two rolling bearings 3 are oppositely arranged and are sleeved on the mandrel 1, the mandrel 1 is sleeved with a spacer bush 12, the spacer bush 12 is arranged between the two rolling bearings 3, two side walls of the spacer bush 12 are respectively abutted against the inner side walls of the two rolling bearings 3, a limit groove 21 is annularly arranged on the left side of the inner peripheral wall of the roller 2, a shaft clamp spring 22 is arranged in the limit groove 21, the inner side wall of the shaft clamp spring 22 is abutted against the outer side wall of the outer ring of the adjacent rolling bearing 3, a flange 23 is annularly protruded on the right side of the inner peripheral wall of the roller 2, the inner side wall of the flange 23 is abutted against the outer side wall of the outer ring of the adjacent rolling bearing 3, a baffle ring 13 is sleeved on the mandrel 1, the baffle ring 13 is connected with the mandrel 1, the baffle ring 13 is arranged near the left side of the bearing group, the inner side wall of the baffle ring 13 is abutted against the outer side wall of the inner ring of the adjacent rolling bearing 3, the tail end of the mandrel 1 is provided with a baffle plate 14, the baffle plate 14 is coaxially aligned with the tail end of the mandrel 1, a bolt 141 is connected between the baffle plate 14 and the mandrel 1, the inner side wall of the baffle plate 14 is abutted against the outer side wall of the inner ring of the adjacent rolling bearing 3, the roller 2 is hollow and provided with an oil supplementing cavity 24, the oil supplementing part comprises solid grease filled in the oil supplementing cavity 24, the oil supplementing cavity 24 is provided with oil outlets 241 corresponding to the positions of the two rolling bearings 3, the oil outlets 241 are communicated with the oil supplementing cavity 24, the inner peripheral wall of the roller 2 is provided with an oil expansion groove 242 in a recessed manner at the position corresponding to the opening of the oil outlet 241, the oil expansion groove 242 is communicated with the oil outlet 241, the radial section of the oil expansion groove 242 is in a trapezoid shape, the joint of the opening of the oil outlet 241 and the oil expansion groove 242 is provided with a deformation plate 4 for blocking or dredging the oil outlet 241, the deformation plate 4 is made of shape memory alloy materials, the radial section of the deformation plate 4 is in an arc shape, the deformation plate 4 has a first shape in a first temperature range, the deformation plate 4 has a second shape in a second temperature range, the deformation plate 4 is bent towards the opening prescription of the oil outlet 241 in the first shape to be placed into the oil outlet 241 and block the oil outlet 241, the outer peripheral wall of the deformation plate 4 is attached to the inner peripheral wall of the oil outlet 241 in the first mode, the radial cross section of the oil outlet 241 is square, the deformation plate 4 is bent towards the direction of the rolling bearing 3 in the second mode and is placed into the oil expansion groove 242, the oil expansion groove 242 is communicated with the opening of the oil outlet 241, the outer peripheral wall surface of the deformation plate 4 is in partial contact with the outer peripheral wall surface of the rolling bearing 3 in the second mode, the rolling bearing 3 is a deep groove ball bearing, one end of the mandrel 1 is a connecting end for being connected with external equipment, and the connecting end of the mandrel 1 is horizontally cut with a positioning surface 15 along the length direction of the mandrel 1.

While the basic principles and main features of the present utility model and advantages of the present utility model have been shown and described, it will be understood by those skilled in the art that the present utility model is not limited by the foregoing embodiments, which are described in the foregoing specification merely illustrate the principles of the present utility model, and various changes and modifications may be made therein without departing from the spirit and scope of the utility model, which is defined in the appended claims and their equivalents.

Claims

1. A roller bearing, characterized in that: the high-speed lubrication device comprises a mandrel and a roller, wherein the mandrel is used for being fixed on external equipment, the roller is used for being connected with external transmission equipment in a transmission mode, the roller is sleeved on the mandrel, a rolling groove is formed between the outer peripheral wall of the mandrel and the inner peripheral wall of the roller, a speed-increasing bearing group used for improving the rotation speed of the roller and reducing the friction torque between the roller and the mandrel is arranged in the rolling groove, an oil supplementing piece used for supplementing lubrication grease to the rolling groove during high-speed transmission of the roller is arranged in the rolling groove, the speed-increasing bearing group comprises two rolling bearings arranged in the rolling groove, the two rolling bearings are oppositely arranged and are sleeved on the mandrel, a spacer is sleeved on the mandrel, the spacer is arranged between the two rolling bearings, and two side walls of the spacer are respectively arranged in a propping connection mode with the inner side walls of the two rolling bearings.

2. A roller bearing according to claim 1, characterized in that: the limiting groove is formed in the left side of the inner peripheral wall of the roller in a circumferential direction, the clamping spring for the shaft is arranged in the limiting groove, the inner side wall of the clamping spring for the shaft is arranged in a propping manner with the outer side wall of the outer ring of the adjacent rolling bearing, the right side of the inner peripheral wall of the roller is provided with a flange in a circumferential direction, and the inner side wall of the flange is arranged in a propping manner with the outer side wall of the outer ring of the adjacent rolling bearing.

3. A roller bearing according to claim 1, characterized in that: the spindle is sleeved with a baffle ring, the baffle ring is connected with the spindle, the baffle ring is arranged near the left side of the bearing group, the inner side wall of the baffle ring is arranged in a propping manner with the outer side wall of the inner ring of the adjacent rolling bearing, the tail end of the spindle is provided with a baffle plate, the baffle plate is coaxially aligned with the tail end of the spindle, a bolt is connected between the baffle plate and the spindle, and the inner side wall of the baffle plate is arranged in a propping manner with the outer side wall of the inner ring of the adjacent rolling bearing.

4. A roller bearing according to claim 1, characterized in that: the roller is hollow and provided with an oil supplementing cavity, the oil supplementing piece comprises solid grease filled in the oil supplementing cavity, the oil supplementing cavity is provided with oil outlet holes corresponding to the two rolling bearings, and the oil outlet holes are communicated with the oil supplementing cavity.

5. A roller bearing according to claim 4, wherein: the oil-spreading groove is formed in the position, corresponding to the oil outlet opening, of the inner peripheral wall of the roller in a recessed mode, the oil-spreading groove is communicated with the oil outlet, the radial cross section of the oil-spreading groove is trapezoidal, a deformation plate used for blocking or dredging the oil outlet is arranged at the joint of the oil outlet opening and the oil-spreading groove, the deformation plate is made of shape memory alloy materials, the radial cross section of the deformation plate is arranged in an arc shape, the deformation plate is provided with a first shape in a first temperature range, the deformation plate is provided with a second shape in a second temperature range, the deformation plate bends towards the direction of the oil outlet opening under the first shape to be placed into the oil outlet and block the oil outlet, the outer peripheral wall of the deformation plate is attached to the inner peripheral wall of the oil outlet under the first shape, the radial cross section of the oil outlet is square, and the deformation plate bends towards the direction of the rolling bearing to be placed into the oil-spreading groove and is communicated with the opening of the oil outlet.

6. A roller bearing according to claim 5, wherein: the deformation plate is arranged in a way that the outer peripheral wall surface of the deformation plate is in partial contact with the outer peripheral wall surface of the outer ring of the rolling bearing in the second state.

7. A roller bearing according to claim 1, characterized in that: the rolling bearing is a deep groove ball bearing.

8. A roller bearing according to claim 1, characterized in that: the utility model discloses a dabber, including dabber, dabber one end is for being used for the link that is connected with external equipment, dabber link is last to have the locating surface along dabber length direction horizontal cutting.