CN217152649U - Thrust roller bearing and guide wheel - Google Patents
Thrust roller bearing and guide wheel Download PDFInfo
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- CN217152649U CN217152649U CN202220643316.2U CN202220643316U CN217152649U CN 217152649 U CN217152649 U CN 217152649U CN 202220643316 U CN202220643316 U CN 202220643316U CN 217152649 U CN217152649 U CN 217152649U
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Abstract
The application provides a thrust roller bearing, which comprises a bearing outer ring, a thrust retainer ring and a sealing element, wherein a bearing inner ring is arranged in the bearing outer ring along the axial direction, so that a first raceway is formed between the bearing outer ring and the bearing inner ring; thrust retaining rings are respectively arranged at two axial ends of the bearing inner ring, so that a second raceway is formed between the thrust retaining rings and the step surface of the bearing outer ring; the sealing element is arranged between the thrust retainer ring and the bearing outer ring; the first raceway is internally provided with a cylindrical roller pair group, and the cylindrical roller pair group is annularly arranged in the first raceway and can roll in the first raceway; the thrust roller retainer is arranged in the second roller path, thrust rollers are annularly arranged on the thrust roller retainer, and the thrust rollers can roll in the second roller path; the application also provides a guide wheel, which comprises a thrust roller bearing, a guide wheel shaft and a fixing piece; the application improves the strength of the thrust roller bearing.
Description
Technical Field
The utility model relates to a bearing, especially a thrust roller bearing and guide pulley.
Background
In some ground rail or I-steel type linear motion supporting occasions, guide wheels and bearings are needed. In a static state, a certain gap is required to be reserved between the excircle of the bearing and the track, and the axial direction of the bearing is positioned by the shaft and the shaft sleeve; along with equipment operation, equipment unilateral atress at the same time, the bearing not only must bear corresponding axial impact force, must bear the radial impact force of alternation along with equipment reciprocating motion brings again.
As shown in fig. 1, in the structure of the existing thrust roller bearing, an inner ring, a cylindrical roller pair and an outer ring are sequentially sleeved, the axial impact resistance and the radial impact resistance are weak, and the service life of the thrust roller bearing is short.
Disclosure of Invention
To the not enough that exists among the prior art, the utility model provides a thrust roller bearing and guide pulley has optimized bearing structure, improves thrust roller bearing's bearing capacity. The utility model adopts the technical proposal that:
on one hand, the thrust roller bearing comprises a bearing outer ring, a thrust retainer ring and a sealing element, wherein a bearing inner ring is arranged in the bearing outer ring along the axial direction, so that a first raceway is formed between the bearing outer ring and the bearing inner ring; thrust retaining rings are respectively arranged at two axial ends of the bearing inner ring, so that a second raceway is formed between the thrust retaining rings and the step surface of the bearing outer ring; the sealing element is arranged between the thrust retainer ring and the bearing outer ring;
the first raceway is internally provided with a cylindrical roller pair group, and the cylindrical roller pair group is annularly arranged in the first raceway and can roll in the first raceway;
the thrust roller retainer is arranged in the second roller path, thrust rollers are annularly arranged on the thrust roller retainer, and the thrust rollers can roll in the second roller path.
Further, the seal member includes
The outer sealing piece comprises a first outer sealing part and a second outer sealing part, the first outer sealing part extends along the axial direction, the first outer sealing part is in static fit with the outer ring of the bearing, the second outer sealing part is arranged at one end, far away from the inner ring of the bearing, of the first outer sealing part, and the second outer sealing part extends towards the thrust retainer ring; and
the inner sealing piece comprises a first inner sealing part and a second inner sealing part, the first inner sealing part extends along the axial direction, the outer circular surface of the first inner sealing part is connected with the inner circular surface of the first outer sealing part, the second inner sealing part is connected to the inner surface of the first inner sealing part, and the second inner sealing part extends to the thrust retainer ring.
Furthermore, a first conical surface is arranged on the outer circular surface of the thrust retainer ring, and the second inner sealing part extends to the first conical surface;
the diameter of the first conical surface is gradually reduced from the inner ring of the bearing to the thrust retainer ring.
Further, the inner sealing element is a rubber element.
Further, a thrust washer is arranged in the second roller path, and the thrust roller rolls along the surface of the thrust washer.
Further, the thrust roller is a ball or a roller.
Furthermore, the number of the cylindrical roller pair groups is at least two, and the at least two cylindrical roller pair groups are sequentially arranged along the first direction;
the cylindrical roller pair group comprises a plurality of cylindrical roller pairs, wherein fillets are respectively processed at two ends of each cylindrical roller pair along the first direction, and arc surfaces are arranged on the first rolling paths, so that oil storage tanks are reserved in the first rolling paths along the two adjacent cylindrical roller pairs along the first direction.
Furthermore, an oil guide hole communicated with the oil storage groove is formed in the bearing inner ring.
On the other hand, the application also provides a guide wheel which is connected to the equipment to realize the movement of the equipment along a track, and the guide wheel comprises a thrust roller bearing, a guide wheel shaft and a fixing piece;
the guide wheel shaft penetrates through the equipment, the fixing piece and the thrust roller bearing are respectively arranged on two sides of the equipment, the fixing piece is in threaded connection with the guide wheel shaft and used for fixing the guide wheel shaft on the equipment, the thrust roller bearing is rotatably connected to the guide wheel shaft, and a bearing outer ring of the thrust roller bearing can roll along a track.
Further, an oil inlet hole is formed in the guide wheel shaft and communicated with the oil guide hole.
Further, an oil inlet hole is formed in the guide wheel shaft and communicated with the oil guide hole.
The utility model has the advantages that:
1. the first roller path is matched with the cylindrical roller pair to roll, so that the radial impact force can be borne, the second roller paths on two sides of the inner ring of the bearing are matched with the thrust roller to roll, so that the bidirectional axial impact force can be borne, and compared with the existing thrust roller bearing, the thrust roller bearing is strong in bearing capacity and longer in service life;
2. the sealing element adopts an inner layer and an outer layer, the outer layer is tightly matched with the bearing outer ring, the inner layer is attached to the bearing inner ring, the dustproof requirement is met, the sealing purpose is achieved, compared with a single-layer sealing element, the structural strength is higher, and the service life of the thrust roller bearing is longer;
3. this application adopts at least two sets of cylindrical roller pair to set up the oil storage tank between adjacent cylindrical roller pair, realize lubricating grease's storage, improve the lubricity.
Drawings
Fig. 1 is a schematic structural view of a prior art thrust roller bearing.
Fig. 2 is a schematic structural view of a thrust roller bearing according to the present application.
Fig. 3 is a partially enlarged view of a portion a in fig. 2.
Fig. 4 is a partially enlarged view of fig. 2 at B.
FIG. 5 is a schematic view of the structure of the idler of the present application in use.
In the figure: 1-thrust roller bearing, 2-guide wheel shaft, 3-fixed part, 4-device, 5-track, 101-bearing outer ring, 101 a-first raceway, 101 b-second raceway, 102-bearing inner ring, 102 a-oil guide hole, 103-cylindrical roller pair, 104-thrust retainer ring, 104 a-first conical surface, 105-thrust roller retainer, 106-thrust roller, 107-outer seal, 107 a-first outer seal, 107 b-second outer seal, 108-inner seal, 108 a-first inner seal, 108 b-second inner seal, 109-thrust washer, 110-oil storage groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Referring to fig. 2-4, the present invention first provides a thrust roller bearing 1, which includes a bearing outer ring 101, a thrust retaining ring 104 and a sealing member, wherein a bearing inner ring 102 is axially disposed in the bearing outer ring 101, so that a first raceway 101a is formed between the bearing outer ring 101 and the bearing inner ring 102; thrust retaining rings 104 are respectively arranged at two axial ends of the bearing inner ring 102, so that a second raceway 101b is formed between the thrust retaining rings 104 and the step surface of the bearing outer ring 101; the sealing element is arranged between the thrust retainer ring 104 and the bearing outer ring 101; the axes of the first raceway 101a, the second raceway 101b and the bearing outer ring 101 coincide.
A cylindrical roller pair group is arranged in the first raceway 101a, is annularly arranged in the first raceway 101a and can roll in the first raceway 101 a; a thrust roller retainer 105 is arranged in the second raceway 101b, thrust rollers 106 are annularly arranged on the thrust roller retainer 105, and the thrust rollers 106 can roll in the second raceway 101 b; by improving the bearing structure, a thrust roller pair composed of the thrust retainer ring 104, the thrust roller retainer 105, the thrust roller 106 and the bearing inner ring 102 is combined with a cylindrical roller pair to form a high-bearing structure, so that the bearing structure can bear the axial impact force between the bearing and a shaft and the radial impact force between the bearing and a track, and the service life of the bearing is prolonged.
In the present application, the seals include an outer seal 107 and an inner seal 108; the outer sealing element 107 comprises a first outer sealing part 107a and a second outer sealing part 107b, the first outer sealing part 107a extends along the first direction, the first outer sealing part 107a is in static fit with the bearing outer ring 101, the second outer sealing part 107b is arranged at one end, away from the bearing inner ring 102, of the first outer sealing part 107a, and the second outer sealing part 107b extends towards the thrust collar 104; the outer sealing element 107 is a metal piece, so that the inner sealing element 108 is protected from impact deformation, and the outer sealing element 107 is in static fit with the bearing outer ring 101 and moves synchronously with the bearing outer ring 101;
the inner sealing member 108 comprises a first inner sealing portion 108a and a second inner sealing portion 108b, the first inner sealing portion 108a extends along a first direction, an outer circular surface of the first inner sealing portion 108a is connected with an inner circular surface of the first outer sealing portion 107a, the second inner sealing portion 108b is connected with an inner surface of the first inner sealing portion 108a, and the second inner sealing portion 108b extends to the thrust collar 104;
the inner sealing element 108 is a rubber element; the purpose of sealing the thrust collar 104 is to prevent grease from leaking from the edge of the thrust collar 104.
As an embodiment of the present application, the first inner seal 108a and the first outer seal 107a are bonded to each other.
In order to improve the sealing effect and the fixing effect of the thrust retaining ring 104, the outer circular surface of the thrust retaining ring 104 is provided with a first conical surface 104a, and the second inner sealing portion 108b extends to the first conical surface 104 a; the diameter of the first tapered surface 104a gradually decreases from the bearing inner race 102 to the thrust collar 104.
In the present application, a thrust washer 109 is disposed in the second raceway 101b, and the thrust roller 106 rolls along the surface of the thrust washer 109; the thrust washer 109 is located on the step surface of the bearing outer ring 101, and plays a transitional role to prevent the thrust roller 106 from directly contacting the surface of the bearing outer ring 101, and the phenomenon of motion blockage caused by the uneven surface of the bearing outer ring 101 is prevented.
In some embodiments, the thrust rollers 106 are balls or rollers; the rolling of the roller is more stable and the keeping effect is better because the movement track of the ball is circular, the circle center of the ball is positioned on the axis of the bearing outer ring, and the contact area of the roller is larger than that of the ball and the thrust washer 109.
In the application, the number of the cylindrical roller pair groups is at least two, and the at least two cylindrical roller pair groups are sequentially arranged along a first direction; the cylindrical roller pair group comprises a plurality of cylindrical roller pairs 103, two ends of any cylindrical roller pair 103 along a first direction are respectively processed with a fillet, and the first rolling way 101a is provided with a circular arc surface, so that an oil storage tank 110 is reserved in the first rolling way 101a by two adjacent cylindrical roller pairs 103 along the first direction; due to the oil storage tank 110, more lubricating grease can be stored under the condition that the movement of the cylindrical roller pair 103 is not influenced, and the movement friction of the cylindrical roller pair 103 is facilitated.
In order to conveniently add lubricating grease into the oil storage tank 110, the bearing inner ring 102 is provided with an oil guide hole 102a communicated with the oil storage tank 110; the number of the oil guiding holes 102a is two, and the oil guiding holes 102a are symmetrically arranged on the bearing inner ring 102 along the first direction, and any oil guiding hole 102a extends along the radial direction of the bearing inner ring 102 and is communicated with the oil storage tank 110.
On the other hand, referring to fig. 5, the present application further provides a guide wheel connected to the device 4 to realize the movement of the device 4 along the track 5, including a thrust roller bearing 1, a guide wheel shaft 2 and a fixing member 3; the guide wheel shaft 2 penetrates through the equipment 4, the fixing piece 3 and the thrust roller bearing 1 are respectively arranged on two sides of the equipment 4, the fixing piece 3 is in threaded connection with the guide wheel shaft 2 and used for fixing the guide wheel shaft 2 on the equipment 4, the thrust roller bearing 1 is rotatably connected to the guide wheel shaft 2, and a bearing outer ring 101 of the thrust roller bearing 1 can roll along the track 5.
The method is mainly applied to horizontal guiding of the ground rail of the stacker of the three-dimensional storage main equipment, and the method can be applied to occasions where the ground rail or profile steel is used as a linear motion support; this application equipment 4 is stacker, and the guide pulley is installed on the erection support or the installing support of equipment 4.
In some embodiments, the fixture 3 is a nut.
In order to facilitate the lubrication of the thrust roller bearing 1, an oil inlet hole 201 is formed in the guide wheel shaft 2, and the oil inlet hole 201 is communicated with the oil guide hole 102 a; the oil inlet hole 201 is a cross hole, a groove is formed in the end portion of the oil inlet hole 201 along the cylindrical surface of the guide axle 2, grease enters the groove through the oil inlet hole 201, lubricating grease is added to the cylindrical surface of the guide axle 2, the lubricating grease flows into the oil storage tank 110 from the groove and the oil guide hole 102a, and the lubricating grease is added to the cylindrical roller pair 103.
Finally, it should be noted that the above embodiments are only used for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to the examples, those skilled in the art should understand that the technical solutions of the present invention can be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the scope of the claims of the present invention.
Claims (10)
1. A thrust roller bearing (1), characterized in that: the bearing comprises a bearing outer ring (101), a thrust retainer ring (104) and a sealing element, wherein a bearing inner ring (102) is arranged in the bearing outer ring (101) along the axial direction, so that a first raceway (101 a) is formed between the bearing outer ring (101) and the bearing inner ring (102); thrust retaining rings (104) are respectively arranged at two axial ends of the bearing inner ring (102) so that a second raceway (101 b) is formed between the thrust retaining rings (104) and the step surface of the bearing outer ring (101); the sealing element is arranged between the thrust retainer ring (104) and the bearing outer ring (101);
the first raceway (101 a) is internally provided with a cylindrical roller pair group, and the cylindrical roller pair group is annularly arranged in the first raceway (101 a) and can roll in the first raceway (101 a);
the second raceway (101 b) is internally provided with a thrust roller retainer (105), thrust rollers (106) are annularly arranged on the thrust roller retainer (105), and the thrust rollers (106) can roll in the second raceway (101 b).
2. The thrust roller bearing of claim 1, wherein: the sealing member comprises
The outer sealing element (107) comprises a first outer sealing part (107 a) and a second outer sealing part (107 b), the first outer sealing part (107 a) extends along the axial direction, the first outer sealing part (107 a) is in static fit with the bearing outer ring (101), the second outer sealing part (107 b) is arranged at one end, away from the bearing inner ring (102), of the first outer sealing part (107 a), and the second outer sealing part (107 b) extends towards the thrust retainer ring (104); and
the inner sealing element (108) comprises a first inner sealing portion (108 a) and a second inner sealing portion (108 b), the first inner sealing portion (108 a) extends along the axial direction, the outer circular surface of the first inner sealing portion (108 a) is connected with the inner circular surface of the first outer sealing portion (107 a), the second inner sealing portion (108 b) is connected to the inner surface of the first inner sealing portion (108 a), and the second inner sealing portion (108 b) extends to the thrust retaining ring (104).
3. The thrust roller bearing of claim 2, wherein: the outer circular surface of the thrust retainer ring (104) is provided with a first conical surface (104 a), and the second inner sealing part (108 b) extends to the first conical surface (104 a);
the diameter of the first conical surface (104 a) is gradually reduced from the bearing inner ring (102) to the thrust retainer ring (104).
4. A thrust roller bearing according to claim 3, wherein: the inner sealing element (108) is a rubber element.
5. The thrust roller bearing of claim 1, wherein: and a thrust washer (109) is arranged in the second raceway (101 b), and the thrust roller (106) rolls along the surface of the thrust washer (109).
6. The thrust roller bearing of claim 1 or 5, wherein: the thrust rollers (106) are balls or rollers.
7. The thrust roller bearing of claim 1, wherein: the cylindrical roller pair groups are at least two groups, and the at least two groups of cylindrical roller pair groups are sequentially arranged along a first direction;
the cylindrical roller pair group comprises a plurality of cylindrical roller pairs (103), wherein fillets are respectively processed at two ends of each cylindrical roller pair (103) along a first direction, and arc surfaces are arranged on the first roller path (101 a) so that oil storage grooves (110) are reserved in the first roller path (101 a) along the two cylindrical roller pairs (103) adjacent to each other along the first direction.
8. The thrust roller bearing of claim 7, wherein: the bearing inner ring (102) is provided with an oil guide hole (102 a) communicated with the oil storage groove (110).
9. A guide wheel for attachment to a piece of equipment (4) for movement of the piece of equipment (4) along a track (5), characterized by: thrust roller bearing (1) comprising one of the claims 1 to 8, further comprising a guide wheel shaft (2) and a fixing part (3);
the guide wheel shaft (2) penetrates through the equipment (4), the fixing piece (3) and the thrust roller bearing (1) are arranged on two sides of the equipment (4) respectively, the fixing piece (3) is in threaded connection with the guide wheel shaft (2) and used for fixing the guide wheel shaft (2) on the equipment (4), the thrust roller bearing (1) is rotatably connected to the guide wheel shaft (2), and a bearing outer ring (101) of the thrust roller bearing (1) can roll along the track (5).
10. The jockey wheel of claim 9, wherein: an oil inlet hole (201) is formed in the guide wheel shaft (2), and the oil inlet hole (201) is communicated with the oil guide hole (102 a).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220643316.2U CN217152649U (en) | 2022-03-23 | 2022-03-23 | Thrust roller bearing and guide wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220643316.2U CN217152649U (en) | 2022-03-23 | 2022-03-23 | Thrust roller bearing and guide wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217152649U true CN217152649U (en) | 2022-08-09 |
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ID=82695683
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220643316.2U Active CN217152649U (en) | 2022-03-23 | 2022-03-23 | Thrust roller bearing and guide wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217152649U (en) |
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2022
- 2022-03-23 CN CN202220643316.2U patent/CN217152649U/en active Active
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