CN214578330U - Tapered roller bearing with pressing function - Google Patents
Tapered roller bearing with pressing function Download PDFInfo
- Publication number
- CN214578330U CN214578330U CN202022816054.9U CN202022816054U CN214578330U CN 214578330 U CN214578330 U CN 214578330U CN 202022816054 U CN202022816054 U CN 202022816054U CN 214578330 U CN214578330 U CN 214578330U
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- CN
- China
- Prior art keywords
- bearing
- pressing
- compression
- cover
- tapered roller
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 238000003825 pressing Methods 0.000 title claims description 38
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 10
- 239000010959 steel Substances 0.000 claims abstract description 10
- 229910000639 Spring steel Inorganic materials 0.000 claims abstract description 4
- 230000006835 compression Effects 0.000 abstract description 17
- 238000007906 compression Methods 0.000 abstract description 17
- 238000005096 rolling process Methods 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 2
- 210000004907 gland Anatomy 0.000 abstract description 2
- 238000007670 refining Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 abstract 2
- 239000011324 bead Substances 0.000 abstract 1
- 238000005192 partition Methods 0.000 abstract 1
- 238000010791 quenching Methods 0.000 description 6
- 230000000171 quenching effect Effects 0.000 description 5
- 230000009471 action Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000002035 prolonged effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005255 carburizing Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
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- Rolling Contact Bearings (AREA)
Abstract
The utility model discloses a from tapered roller bearing that area compressed tightly compresses tightly, compress tightly the lid and adopt bearing steel material, the counter sink that distributes 20 partitions on the circumferencial direction, the depression bar adopts No. 45 steel thermal refining, 10mm is designed into to the long end of depression bar, the pressure spring is standard spring steel material, the length of pressure spring is at 15~18mm, the short-end of depression bar and compress tightly and design clearance fit between the hole of lid, guarantee the depression bar and freely remove at axial. The compression bar and the compression spring are in large clearance fit. The left and right compression bars can only move towards the middle part to just achieve the effect of compressing the rolling body, the circular bead of the gland in the opposite direction blocks the rolling body and cannot move, and the bearing outer ring and the compression cover part are assembled together, so that the processing of the compression cover is facilitated, and the compression cover is convenient to exchange.
Description
Technical Field
The utility model relates to a bearing specifically is a tapered roller bearing who compresses tightly from area.
Background
In the bearing use site, the tapered roller bearing can bear higher axial and radial loads, has higher strength, and is widely applied to the industries of gear boxes, steel rolling machinery, mining machinery, machinery in the industries and the like.
Particularly in a steel rolling device, the double-row tapered roller bearing can replace the combination of a four-row cylindrical roller bearing and a deep groove ball bearing or an angular contact ball bearing. The axial bearing capacity of the tapered roller bearing changes along with the change of the contact angle, and the larger the contact angle alpha is, the larger the axial bearing capacity is. The general contact angle is between 10 DEG and 30 deg. In the product design, low friction can be achieved by optimizing the internal structure of the roller, because the heat generated by friction can cause the reduction of the service life of the bearing. The roller is designed to be in a shape of a convexity curve, and can be tightly matched with the raceway, so that the stress value at the end face of the roller is reduced, and a dynamic pressure lubricating oil film is formed on the contact surface of the rolling body and the raceway.
Because the outer ring adopts a detachable structure, the problem that the contact between a rolling body and a raceway is not tight frequently occurs in the tapered roller bearing in the using process, so that the structure of the outer ring and the pressing device is adopted, and the effect is obviously superior to that of the bearing with the conventional common structure. But new problems arise: and a plurality of equally divided counter bores are added to the outer ring. The outer ring is processed by heat treatment and quenching and then grinding. If a ferrule of carburized steel is used, the equant holes need to be machined after quenching, because if the machining of the counter bores is completed before quenching, cracking may occur after quenching. However, the post-quenching process causes difficulty in grinding. Therefore, the outer ring is changed into a split structure, and the contradiction of outer ring processing is solved.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a tapered roller bearing who compresses tightly from area to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a tapered roller bearing with a pressing function comprises a bearing inner ring, a roller, a retainer, a bearing outer ring, a pressing cover, a pressing rod and a pressing spring. The bearing inner ring is positioned in the bearing outer ring and arranged in a concentric circle structure, the bearing inner ring and the bearing outer ring are rotationally connected through a plurality of rollers, and a retainer for positioning is connected between the rollers.
As a further aspect of the present invention: the bearing outer ring is characterized in that two ends of the bearing outer ring are provided with annular groove structures, the annular grooves are used for installing compression covers, countersunk holes used for installing compression rods are formed in the compression covers, the compression springs are sleeved on the compression rods, the compression rods are installed in the countersunk holes in the compression covers, and the compression covers are in threaded connection with threaded sleeves of the annular notches through threaded sleeve structures formed by the annular notches.
As a further aspect of the present invention: the pressing cover is made of bearing steel, 20 equal countersunk holes are distributed in the circumferential direction of the pressing cover, the long end of the pressing rod is designed to be 10mm, the pressure spring is made of standard spring steel, and the length of the pressure spring is 15-18 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
after the bearing is integrally installed in place, the outer ring is compressed to act towards the center in the axial direction under the action of the pressure spring, so that the outer raceway is in close contact with the rolling body, the friction force in the bearing is greatly reduced, the generation of friction heat is avoided, and the service life of the bearing is prolonged.
Drawings
Fig. 1 is a schematic structural view of a tapered roller bearing with self-pressing.
Fig. 2 is a schematic structural diagram of a pressing cover in a tapered roller bearing with pressing.
In the figure: 1. a bearing inner race; 2. a roller; 3. a holder; 4. a bearing outer race; 5. a compression cover; 6. a pressure lever; 7. and (5) pressing a spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-2, in an embodiment of the present invention, a tapered roller bearing with a self-pressing function includes a bearing inner ring 1, a roller 2, a retainer 3, a bearing outer ring 4, a pressing cover 5, a pressing rod 6, and a pressing spring 7.
The bearing inner ring 1 is positioned in the bearing outer ring 4 and arranged in a concentric circle structure, the bearing inner ring 1 is rotatably connected with the bearing outer ring 4 through a plurality of rollers 2, and a retainer 3 for positioning is connected between the rollers 2.
The bearing outer ring 4 both ends have been seted up ring channel structure, and the ring channel is used for installing and compresses tightly lid 5, compresses tightly the inside counter sink that is used for installing depression bar 6 that offers of lid 5, overlaps pressure spring 7 on depression bar 6, installs depression bar 6 again in compressing tightly the counter sink in lid 5, compresses tightly lid 5 through the thread bush structure threaded connection that the annular notch was seted up in the thread bush of annular notch.
The pressing cover 5 is made of bearing steel, countersunk holes which are 20 equal parts are distributed in the circumferential direction, the pressing rod 6 is made of No. 45 steel through thermal refining, the long end of the pressing rod 6 is designed to be 10mm, the pressing spring 7 is made of standard spring steel, the length of the pressing spring 7 is 15-18 mm, the short end of the pressing rod 6 is in clearance fit with the holes of the pressing cover 5, and the pressing rod 6 is guaranteed to freely move in the axial direction. The compression bar 6 and the compression spring 7 are in large clearance fit. The pressure rods on the left side and the right side can only move towards the middle part, so that the function of pressing the rolling body is just achieved, and the pressure rods can not move when being blocked by the shoulder of the gland in the opposite direction.
And finally, the bearing outer ring 4 and the pressing cover 5 are installed and combined together, so that the processing is convenient, the pressing cover 5 is convenient to exchange, and the problem that the quenching of the outer ring carburizing steel is easy to crack is solved. When the spring 7 is not received, the pressure rod 6 protrudes 1-2 mm from the end face under the condition of no pre-tightening. After the bearing is integrally installed in place, the outer ring is compressed to act towards the center in the axial direction under the action of the pressure spring 7, so that the outer raceway is in close contact with the rolling body, the friction force in the bearing is greatly reduced, the generation of friction heat is avoided, and the service life of the bearing is prolonged.
In the description of the present invention, it should be noted that unless explicitly stated or limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (3)
1. The utility model provides a tapered roller bearing from area compresses tightly, includes bearing inner race (1), roller (2), holder (3), bearing outer lane (4), compresses tightly lid (5), depression bar (6), pressure spring (7), its characterized in that, bearing inner race (1) is arranged to be concentric circle structure among bearing outer lane (4), rotates through a plurality of roller (2) between bearing inner race (1) and the bearing outer lane (4) and is connected with holder (3) that are used for the location between roller (2) and roller (2).
2. The tapered roller bearing with the self-pressing function according to claim 1, wherein two ends of the bearing outer ring (4) are provided with annular groove structures, the annular grooves are used for installing the pressing cover (5), countersunk holes used for installing the pressing rods (6) are formed in the pressing cover (5), the pressing springs (7) are sleeved on the pressing rods (6), the pressing rods (6) are installed in the countersunk holes in the pressing cover (5), and the pressing cover (5) is in threaded connection with the thread sleeves of the annular notch through the thread sleeve structures formed in the annular notch.
3. The tapered roller bearing with the self-pressure function according to claim 1, wherein the pressure cover (5) is made of bearing steel, 20 equal countersunk holes are distributed in the circumferential direction of the pressure cover, the long end of the pressure rod (6) is designed to be 10mm, the pressure spring (7) is made of standard spring steel, and the length of the pressure spring (7) is 15-18 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022816054.9U CN214578330U (en) | 2020-11-30 | 2020-11-30 | Tapered roller bearing with pressing function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022816054.9U CN214578330U (en) | 2020-11-30 | 2020-11-30 | Tapered roller bearing with pressing function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214578330U true CN214578330U (en) | 2021-11-02 |
Family
ID=78325201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022816054.9U Expired - Fee Related CN214578330U (en) | 2020-11-30 | 2020-11-30 | Tapered roller bearing with pressing function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214578330U (en) |
-
2020
- 2020-11-30 CN CN202022816054.9U patent/CN214578330U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211102 |