CN214837812U - Full complement roller bearing assembly - Google Patents
Full complement roller bearing assembly Download PDFInfo
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- CN214837812U CN214837812U CN202120641218.0U CN202120641218U CN214837812U CN 214837812 U CN214837812 U CN 214837812U CN 202120641218 U CN202120641218 U CN 202120641218U CN 214837812 U CN214837812 U CN 214837812U
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- roller bearing
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Abstract
The utility model belongs to the technical field of bearing equipment makes, concretely relates to be applied to full complement roller bearing assembly under high rotational speed, include a plurality of rolling elements that set up along the annular and set up the side retaining ring in the both sides of rolling element, side retaining ring and rolling element terminal surface cooperation location. The utility model discloses a bearing assembly has cancelled the design of inner circle, outer lane, has reduced bearing ring's assembly space when having reduced the cooperation degree of difficulty of bearing ring and axle and casing, provides bigger size space for the rolling element, improves the bearing capacity of bearing. The bearing assembly adopts the design of a full-complement cylindrical roller bearing, the bearing capacity of the bearing is improved, gaps are distributed in the circumferential direction of the rolling bodies, the rotation resistance of the bearing assembly is reduced, the retainer is omitted, the rotation resistance of the retainer is reduced, and the friction torque is reduced.
Description
Technical Field
The utility model belongs to the technical field of the bearing equipment is made, concretely relates to be applied to full complement cylindrical roller bearing subassembly under high rotational speed.
Background
The cylindrical roller bearing has the characteristic of high bearing capacity, but the required installation space is large, the processing difficulty is high, and meanwhile, the service life of the bearing is directly influenced by the matching of the bearing ring, the shaft and the shell, such as the assembly of a planet carrier. The bearing ring needs to ensure strength, occupies a large amount of space in the structure of the bearing, but has low functionality. Meanwhile, the cylindrical bearing retainer occupies the space of the bearing 1/2, and for the double-row cylindrical roller bearing, the axial transmission amount of the retainer needs to be ensured to be small enough to prevent the collision of the two rows of retainers.
Disclosure of Invention
According to the defect that above-mentioned prior art exists, the utility model aims at providing a bearing capacity is high, and self weight is low, and friction torque is low, simple to operate's full complement roller assembly bearing.
In order to achieve the above object, the utility model adopts the following technical scheme: the full complement roller bearing assembly comprises a plurality of rolling bodies arranged along an annular shape and side retainer rings arranged on two sides of the rolling bodies, wherein the side retainer rings are matched and positioned with the end faces of the rolling bodies.
Furthermore, the rolling surfaces of the rolling bodies are in direct contact with the rotating body, and the rolling surfaces of the rolling bodies are in direct contact with the relative moving body. The rolling bodies provide rotary support for the rotating body and the relative moving body.
Furthermore, the side check ring is in contact with the end face of the rolling body, and a gap exists after the bearing is installed, so that the bearing can axially float in a small range. The end faces of the side check rings are ground to ensure the surface roughness, and the end faces of the rolling bodies are smooth without holes, so that the friction torque is reduced.
Furthermore, the surface of a plurality of rolling elements arranged along the ring shape is coated with a spacer bush for preventing the rolling elements from falling off, the spacer bush is a rigid piece and comprises an inner spacer bush and an outer spacer bush, the inner spacer bush is coated on the inner diameter of the plurality of rolling elements arranged along the ring shape, and the outer spacer bush is coated on the outer diameter of the plurality of rolling elements arranged along the ring shape.
Furthermore, the inner spacer comprises a short inner spacer and a long inner spacer, the contact length of the short inner spacer and the rolling elements is less than half of the axial height of the rolling elements, and the short inner spacer and the long inner spacer are matched and coated on the inner diameters of the plurality of rolling elements arranged along the ring shape.
Preferably, the contact length of the short inner spacer sleeve and the rolling body is one third of the axial height of the rolling body.
Furthermore, the part of the inner spacer sleeve, which is in contact with the rolling surface of the rolling body, is an annular radial limiting part, axial limiting protrusions which are matched with the side retaining rings to limit the rolling body in the axial direction are arranged on two sides of the radial limiting part, and the rolling body and the side retaining rings are placed in a space formed by the radial limiting part and the axial limiting protrusions.
Further, the width of the outer spacer is the same as the axial height of the rolling elements.
Furthermore, the rolling bodies are arranged in two rows, a middle check ring is arranged between the two rows of rolling bodies, and one side of each of the two rows of rolling bodies, which is far away from each other, is provided with a side check ring.
Furthermore, the middle retainer ring is in contact fit with the end face of the rolling body, the end face of the middle retainer ring is ground, and an axial gap exists.
Further, the bearing assembly is fitted between the carrier housing and the planet shaft.
The utility model has the advantages that: the utility model discloses a bearing assembly has cancelled the design of inner circle, outer lane, has reduced bearing ring's assembly space when having reduced the cooperation degree of difficulty of bearing ring and axle and casing, provides bigger size space for the rolling element, improves the bearing capacity of bearing. The bearing assembly adopts the design of a full-complement cylindrical roller bearing, the bearing capacity of the bearing is improved, gaps are distributed in the circumferential direction of the rolling bodies, the rotation resistance of the bearing assembly is reduced, the retainer is omitted, the rotation resistance of the retainer is reduced, and the friction torque is reduced.
Drawings
FIG. 1 is a single row full complement roller bearing assembly of embodiment 1;
FIG. 2 is the double row full complement roller bearing assembly of embodiment 2;
FIG. 3 is an assembly view of the double row full complement roller bearing assembly of embodiment 2 in a planet carrier;
in the figure: 1. side retaining ring, 2, rolling body, 3, outer spacer sleeve, 4, middle retaining ring, 5, short inner spacer sleeve, 6, long inner spacer sleeve, 7, planet shaft, 8 and planet carrier shell.
Detailed Description
In order to make the structure and function of the present invention clearer, the drawings in the embodiments of the present invention are combined below to clearly and completely describe the technical solution in the embodiments of the present invention.
Example 1
Referring to fig. 1, the single-row full complement roller bearing assembly comprises a plurality of rolling bodies 2 arranged along an annular shape and side retainer rings 1 arranged at two sides of the rolling bodies, wherein the side retainer rings 1 are positioned with the end faces of the rolling bodies 2 in a matching way. The double-sided retainer ring 1 is adopted to limit the axial movement of the rolling body, and the processing is simple. The side retainer ring is in direct contact with the end face of the rolling body, and a gap is reserved after the bearing is installed, so that the bearing can axially move in a small range. The end faces of the side check rings are ground to ensure the surface roughness, and the end faces of the rolling bodies are smooth without holes, so that the friction torque is reduced. The rolling bodies 2 and the side retainer rings 1 on two sides are directly assembled in bearing mounting holes formed between the rotating body and the relative moving body which moves relative to the rotating body, the rolling surfaces of the rolling bodies are in direct contact with the rotating body, and the rolling surfaces of the rolling bodies are in direct contact with the relative moving body. The rolling bodies provide rotary support for the rotating body and the relative moving body. The bearing assembly adopts a full-complement cylindrical roller bearing design, improves the bearing capacity of the bearing, reduces the rotation resistance of the bearing, cancels a retainer structure, reduces the dragging of the retainer in the rotation process, and reduces the friction torque.
It should be noted that, the bearing supports mechanical rotator and plays the part fixed and that reduce load coefficient of friction at mechanical transmission in-process, when other parts produced relative motion each other on the axle, can be used for reducing the coefficient of friction among the power transmission process, the utility model discloses cancelled the design of bearing inner circle, outer lane and holder, directly provide the rotational support power for mechanical rotator through full dress roller, be applicable to the occasion that some assembly space are less or the cooperation degree of difficulty is high, improve the bearing capacity of bearing when sparingly assembling space. What rotator and relative motion body designated needs support the mechanical body of two relative motions of moving through the bearing, is applicable to the utility model discloses what the bearing assembly mostly is axle and outside casing.
Further, because the bearing assembly has cancelled the design of inner circle, outer lane, for avoiding the rolling element that the annular was arranged to drop the separation, placing and the in-process of transportation, the surface cladding of a plurality of rolling elements has the spacer that prevents the rolling element and drop, the spacer is the plastics material, and elasticity deformation diminishes, can guarantee that the arrangement state of a plurality of rolling elements can not harm the rolling element surface when difficult the changing, provides certain guard action for the rolling element, and the spacer includes interior spacer and outer spacer 3, and the cladding of outer spacer 3 is the external diameter of a plurality of rolling elements that set up along the annular, and the width and the rolling element axial height of outer spacer are the same, and the cladding of interior spacer is the internal diameter at a plurality of rolling elements that set up along the annular. The inner spacer comprises a short inner spacer 5 and a long inner spacer 6, the contact length of the short inner spacer 5 and the rolling bodies is one third of the axial height of the rolling bodies, and the short inner spacer 5 and the long inner spacer 6 are matched and coated on the inner diameters of the plurality of rolling bodies arranged along the ring shape. The length of the short inner spacer 5 reaches one third of the axial height of the rolling body, so that the bearing can be effectively prevented from being scattered in the transportation process, meanwhile, when the bearing assembly is installed, the short inner spacer 5 is firstly taken down, the side retainer ring 1 is installed on a shaft, the outer spacer 3 and the long inner spacer 6 are reserved, the whole assembly is pushed into the shaft and the shell, and the outer spacer 3 and the long inner spacer 6 naturally fall off. Because the roller bearing assembly is fully assembled, a gap exists in the circumferential direction, the roller bearing assembly is in clearance fit with the shaft and the shell, the roller bearing assembly can be easily installed, and the outer diameter of the shaft and the inner diameter of the shell are raceways.
Furthermore, the part of the inner spacer sleeve, which is in contact with the rolling surface of the rolling element, is an annular radial limiting part, axial limiting protrusions which are matched with the side baffle ring to limit the rolling element in the axial direction are arranged on two sides of the radial limiting part, the rolling element and the side baffle ring are placed in a space formed by the radial limiting part and the axial limiting protrusions, the sections of the short inner spacer sleeve 5 and the long inner spacer sleeve 6 are both L-shaped structures, the radial limiting parts of the short inner spacer sleeve 5 and the long inner spacer sleeve 6 are in contact and close to each other, and the two axial limiting protrusions matched with the side baffle ring are distributed on one side, away from each other, of the short inner spacer sleeve 5 and the long inner spacer sleeve 6.
The light high-rotating-speed retainer-free single-row roller assembly bearing is proved to be high in bearing capacity, small in friction torque and convenient and feasible to install through use.
Example 2
Referring to the attached drawings 2-3, the double-row full-complement roller bearing assembly comprises two rows of rolling bodies which are arranged along an annular shape, the two rows of rolling bodies are separated by a middle retainer ring 4, the end face of the middle retainer ring 4 is in direct contact with the end face of the rolling bodies, the end face of the middle retainer ring 4 is ground, an axial gap exists, one side, away from each other, of each of the two rows of rolling bodies is provided with a side retainer ring 1, and the side retainer rings 1 are matched and positioned with the end faces of the rolling bodies 2. The side retainer ring is in direct contact with the end face of the rolling body, and a gap is reserved after the bearing is installed, so that the bearing can axially move in a small range. The end faces of the side check rings are ground to ensure the surface roughness, and the end faces of the rolling bodies are smooth without holes, so that the friction torque is reduced. The double-sided retainer ring 1 and the middle retainer ring 4 are adopted to limit the axial movement of the rolling body, and the processing is simple. Two rows of rolling bodies 2, a middle retainer ring 5 and side retainer rings 1 on two sides are directly assembled in a bearing mounting hole formed between the rotating body and a relative moving body which moves relative to the rotating body, rolling surfaces of a plurality of rolling bodies are in direct contact with the rotating body, and rolling surfaces of a plurality of rolling bodies are in direct contact with the relative moving body. The rolling bodies provide rotary support for the rotating body and the relative moving body. The bearing assembly adopts a full-complement cylindrical roller bearing design, improves the bearing capacity of the bearing, reduces the rotation resistance of the bearing, changes the original sliding friction between the retainer and the rolling bodies into the rolling friction between the rolling bodies, and reduces the friction torque.
It should be noted that, the bearing supports mechanical rotator and plays the part fixed and that reduce load coefficient of friction at mechanical transmission in-process, when other parts produced relative motion each other on the axle, can be used for reducing the coefficient of friction among the power transmission process, the utility model discloses cancelled the design of bearing inner circle, outer lane and holder, directly provide the rotational support power for mechanical rotator through full dress roller, be applicable to the occasion that some assembly space are less or the cooperation degree of difficulty is high, improve the bearing capacity of bearing when sparingly assembling space. What rotator and relative motion body designated needs support the mechanical body of two relative motions of moving through the bearing, is applicable to the utility model discloses what the bearing assembly mostly is axle and outside casing.
Further, because the bearing assembly has cancelled the design of inner circle, outer lane, for avoiding the rolling element that the annular was arranged to drop the separation, in the in-process of placing and transporting, the surface cladding of two rolling elements has the spacer that prevents the rolling element and drop, the spacer is the plastics material, and elasticity deformation diminishes, can guarantee that the arrangement state of a plurality of rolling elements can not harm the rolling element surface when difficult the changing, provides certain guard action for the rolling element, and the spacer includes interior spacer and outer spacer 3, and the cladding of outer spacer 3 is the external diameter of a plurality of rolling elements that set up along the annular, and the width of outer spacer is the same with two rolling element axial height, and the cladding of interior spacer is the internal diameter at a plurality of rolling elements that set up along the annular. The inner spacer comprises a short inner spacer 5 and a long inner spacer 6, the contact length of the short inner spacer 5 and the rolling bodies is one third of the axial height of the rolling bodies, and the short inner spacer 5 and the long inner spacer 6 are matched and coated on the inner diameters of the plurality of rolling bodies arranged along the ring shape. The length of the short inner spacer 5 reaches one third of the axial height of the rolling body close to the short inner spacer, so that the bearing can be effectively prevented from being scattered in the transportation process, meanwhile, when a bearing assembly is installed, the short inner spacer 5 is firstly taken down, the side retainer ring 1 is installed on a shaft, the outer spacer 3 and the long inner spacer 6 are reserved, the assembly is pushed into the shaft and the shell, and the outer spacer 3 and the long inner spacer 6 naturally fall off. Because the roller bearing assembly is fully assembled, a gap exists in the circumferential direction, the roller bearing assembly is in clearance fit with the shaft and the shell, the roller bearing assembly can be easily installed, and the outer diameter of the shaft and the inner diameter of the shell are raceways.
Furthermore, the part of the inner spacer sleeve, which is in contact with the rolling surface of the rolling element, is an annular radial limiting part, axial limiting protrusions which are matched with the side baffle ring to limit the rolling element in the axial direction are arranged on two sides of the radial limiting part, the rolling element and the side baffle ring are placed in a space formed by the radial limiting part and the axial limiting protrusions, the short inner spacer sleeve 5 and the long inner spacer sleeve 6 are both of an L-shaped structure, the radial limiting parts of the short inner spacer sleeve 5 and the long inner spacer sleeve 6 are in contact and close to each other, and the two axial limiting protrusions matched with the side baffle ring are distributed on one side, which is far away from each other, of the short inner spacer sleeve 5 and the long inner spacer sleeve 6.
The light high-rotating-speed retainer-free double-row roller assembly bearing is proved to be high in bearing capacity, small in friction torque and convenient and feasible to install through use.
The utility model discloses a double-row full complement roller bearing assembly is applied to the assembly of planet carrier in the derailleur, and two rows of rolling elements are assembled between planet axle 7 and planet carrier casing 8, separate through well retaining ring 4 between two rows of rolling elements, are provided with the oil groove of intercommunication well retaining ring 4 in the planet axle 7, well retaining ring just separates two rows of rollers, does not cooperate with axle and shell, all has the clearance; two one sides that the rolling element kept away from each other set up a side retaining ring 1 respectively, the side retaining ring does not have the cooperation with axle and shell, because the fitting piece of bearing assembly both sides is special-shaped, can't grind the processing, grinds the processing with side retaining ring terminal surface, cooperates with the rolling element, reduces the friction.
The above list is only the preferred embodiment of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (7)
1. A full complement roller bearing assembly, characterized by: the rolling device comprises a plurality of rolling bodies arranged along the ring shape and side retaining rings arranged on two sides of the rolling bodies, wherein the side retaining rings are matched and positioned with the end faces of the rolling bodies; the rolling surfaces of the rolling bodies are in direct contact with the rotating body, and the rolling surfaces of the rolling bodies are in direct contact with the relative moving body.
2. A full complement roller bearing assembly, as claimed in claim 1, wherein: the surface cladding of a plurality of rolling elements that set up along the annular has the spacer that prevents the rolling element and drop, the spacer is the rigidity piece, and the spacer includes interior spacer and outer spacer, and the internal diameter of a plurality of rolling elements that the inner spacer cladding set up along the annular is covered, and the external diameter of a plurality of rolling elements that the outer spacer cladding set up along the annular is covered.
3. A full complement roller bearing assembly, as claimed in claim 2, wherein: the inner spacer comprises a short inner spacer and a long inner spacer, the contact length of the short inner spacer and the rolling body is less than half of the axial height of the rolling body, and the short inner spacer and the long inner spacer are matched and coated on the inner diameters of the plurality of rolling bodies arranged along the ring shape.
4. A full complement roller bearing assembly, as claimed in claim 3, wherein: the contact length of the short inner spacer sleeve and the rolling body is one third of the axial height of the rolling body.
5. A full complement roller bearing assembly, as claimed in claim 3, wherein: the rolling surface contact part of the inner spacer bush and the rolling body is an annular radial limiting part, axial limiting bulges matched with the side retaining rings for limiting the rolling body in the axial direction are arranged on two sides of the radial limiting part, the rolling body and the side retaining rings are placed in a space formed by the radial limiting part and the axial limiting bulges, and the width of the outer spacer bush is the same as the axial height of the rolling body.
6. A full complement roller bearing assembly, as claimed in claim 1, wherein: the rolling bodies are arranged in two rows, a middle check ring is arranged between the two rows of rolling bodies, and one side of each row of rolling bodies, which is far away from each other, is provided with a side check ring.
7. A full complement roller bearing assembly, as claimed in claim 6, wherein: the middle retainer ring is in contact fit with the end face of the rolling body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120641218.0U CN214837812U (en) | 2021-03-30 | 2021-03-30 | Full complement roller bearing assembly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120641218.0U CN214837812U (en) | 2021-03-30 | 2021-03-30 | Full complement roller bearing assembly |
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| Publication Number | Publication Date |
|---|---|
| CN214837812U true CN214837812U (en) | 2021-11-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120641218.0U Active CN214837812U (en) | 2021-03-30 | 2021-03-30 | Full complement roller bearing assembly |
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| CN (1) | CN214837812U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855752A (en) * | 2021-03-30 | 2021-05-28 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Full complement roller bearing assembly |
-
2021
- 2021-03-30 CN CN202120641218.0U patent/CN214837812U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855752A (en) * | 2021-03-30 | 2021-05-28 | 瓦房店轴承集团国家轴承工程技术研究中心有限公司 | Full complement roller bearing assembly |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230802 Address after: 111000 wangshuitai street, Taizihe District, Liaoyang City, Liaoning Province Patentee after: WAFANGDIAN BEARING GROUP LIAOYANG BEARING MANUFACTURING CO.,LTD. Address before: 116300 Wafangdian Bearing Industrial Park, Dalian City, Liaoning Province Patentee before: WAFANGDIAN BEARING GROUP NATIONAL BEARING ENGINEERING TECHNOLOGY RESEARCH CENTER Co.,Ltd. |
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| TR01 | Transfer of patent right |