CN217029647U

CN217029647U - Long-life bearing

Info

Publication number: CN217029647U
Application number: CN202220918857.1U
Authority: CN
Inventors: 黄鉴新
Original assignee: SHANGYU WANLI AUTO BEARING CO Ltd
Current assignee: SHANGYU WANLI AUTO BEARING CO Ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-07-22
Anticipated expiration: 2032-04-19

Abstract

The utility model discloses a long-life shaft coupling bearing, which comprises a transmission mandrel, a bearing outer ring and combined sealing pieces, wherein the bearing outer ring is sleeved outside the transmission mandrel, two ends of the inner wall of the bearing outer ring are respectively provided with a sealing groove, the two combined sealing pieces are respectively arranged on the two sealing grooves, a roller holder and a rolling ball holder are arranged between the transmission mandrel and the bearing outer ring, a plurality of cylindrical rollers are arranged on the roller holder, and a plurality of rolling balls are arranged on the rolling ball holder.

Description

Long-life shaft connecting bearing

Technical Field

The utility model relates to the technical field of automobile parts bearings, in particular to a long-service-life shaft connecting bearing.

Background

The water pump shaft connecting bearing is an important accessory in an automobile engine cooling system, is a transmission bearing core component in the automobile engine cooling system, has the service life reliability directly related to the safety and reliability of automobile use, is usually only concerned with the bearing capacity and the sealing effect of a product in the existing water pump shaft connecting bearing design, is neglected in the aspect of product service life, and causes the vulnerability and the maintenance rate of a bearing product to be higher, thereby influencing the use experience of the product.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects of the prior art and provide a long-service-life shaft connecting bearing.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a long-life coupling bearing, includes transmission dabber, bearing inner race, combined seal spare, the bearing inner race cover is established in the transmission dabber outside, the inner wall both ends of bearing inner race all are equipped with the seal groove, two combined seal spare is installed respectively on two seal grooves, install roller holder, ball holder between transmission dabber, the bearing inner race, install a plurality of cylindrical rollers on the roller holder, install a plurality of balls on the ball holder.

The combined sealing element comprises an inner sealing element and an outer sealing element which are mutually overlapped and connected.

And an inner sealing lip is arranged at the inner diameter position of the inner sealing element and is abutted against the outer wall of the transmission mandrel.

The outer sealing piece is provided with a clamping flange, the inner sealing piece is provided with a joint clamping groove, the size of the clamping flange is matched with the joint clamping groove, the outer sealing piece is connected with the inner sealing piece through the matching of the clamping flange and the joint clamping groove, the side wall of the outer sealing piece is connected with a circle of lengthened sealing lips, the lengthened sealing lips are connected in an inclined mode, and the head of the outer side of the lengthened sealing lips abuts against the outer wall of the transmission mandrel.

The thickness of the head end of the lengthened sealing lip is larger than that of the waist end of the lengthened sealing lip.

The bearing retainer is characterized in that a claw groove is formed in the inner wall of the bearing outer ring, one end of the outer wall of the roller retainer is folded outwards to form a locking claw, the size of the locking claw is matched with that of the claw groove, and the locking claw is clamped into the claw groove after the roller retainer is installed.

The utility model has the beneficial effects that: the utility model has novel structure, reduces the running abrasion of the sealing element by improving the sealing structure, improves the grease leakage prevention performance of the bearing, improves the running stability of the bearing by increasing the roller locking structure, greatly prolongs the service life of the bearing by the improvement, obviously improves the quality stability, obviously improves the core competitiveness of the product, and can bring good economic benefit to enterprises.

Drawings

FIG. 1 is a view of the main structure of the present invention;

fig. 2 is an enlarged view of a point a in fig. 1.

In the figure: the transmission spindle comprises a transmission spindle 1, a bearing outer ring 2, a sealing groove 21, a claw groove 22, a combined sealing element 3, an inner sealing element 31, an inner sealing lip 311, an engagement clamping groove 312, an outer sealing element 32, a clamping flange 321, an elongated sealing lip 322, a roller retainer 4, a cylindrical roller 41, a locking claw 42, a ball retainer 5 and a ball 51.

Detailed Description

The present invention will be further described with reference to the following drawings and detailed description, wherein the descriptions of "left", "right", etc. refer to fig. 1 for reference:

as shown in figures 1-2, a long-life shaft coupling bearing comprises a transmission mandrel 1, a bearing outer ring 2 and combined sealing pieces 3, wherein the bearing outer ring 2 is sleeved outside the transmission mandrel 1, two ends of the inner wall of the bearing outer ring 2 are both provided with sealing grooves 21, the two combined sealing pieces 3 are respectively arranged on the two sealing grooves 21, the combined sealing pieces 3 play a role in sealing two ends of the bearing, can prevent water and sundries outside the bearing from entering and can also prevent lubricating grease inside the bearing from leaking, a roller retainer 4 and a ball retainer 5 are arranged between the transmission mandrel 1 and the bearing outer ring 2, a plurality of cylindrical rollers 41 are arranged on the roller retainer 4, a plurality of rolling balls 51 are arranged on the ball retainer 5, the roller retainer 4 and the ball retainer 5 are respectively arranged at the left side and the right side inside the bearing, when the bearing is applied, a belt wheel is arranged at one end, an impeller is arranged at one end, the cylindrical roller 41 is arranged in the end of the mounting belt wheel to meet the transmission requirements of heavy load and high load, and the rolling ball 51 is arranged in the end of the mounting impeller.

The combined sealing element 3 comprises an inner sealing element 31 and an outer sealing element 32, the inner sealing element 31 and the outer sealing element 32 are mutually connected in an overlapped mode, double sealing is formed between the inner sealing element 31 and the outer sealing element 3, the sealing effect is enhanced, in practical use, the outer sealing element 3 is easy to damage, the outer sealing element 3 is convenient to disassemble and replace, therefore, a bearing does not need to be replaced integrally and quickly, and the service life of the bearing is prolonged indirectly.

The inner diameter position of the inner sealing element 31 is provided with an inner sealing lip 311, the inner sealing lip 311 is abutted against the outer wall of the transmission mandrel 1, and the inner sealing lip 311 is one sealing structure and adopts contact sealing.

The outer sealing element 32 is provided with a clamping flange 321, the inner sealing element 31 is provided with a joint clamping groove 312, the clamping flange 321 is matched with the joint clamping groove 312 in size, the outer sealing element 32 is jointed on the inner sealing element 31 through the matching of the clamping flange 321 and the joint clamping groove 312, the jointing operation between the inner sealing element 31 and the outer sealing element 32 is very convenient, the outer sealing element 32 is convenient to disassemble, assemble and replace, a circle of lengthened sealing lip 322 is connected to the side wall of the outer sealing element 32, the lengthened sealing lip 322 is connected in an inclined mode, the outer side head of the lengthened sealing lip 322 is abutted against the outer wall of the transmission mandrel 1, the lengthened sealing lip 322 is another sealing structure, and double sealing is formed together with the inner sealing lip 311.

The head end thickness of the lengthened sealing lip 322 is greater than the waist end thickness (the connecting position of the lengthened sealing lip 322 and the outer sealing piece 32 body side wall) of the lengthened sealing lip 322, that is, the lengthened sealing lip 322 becomes thinner and narrows from the head end, in addition, the lengthened sealing lip 322 is arranged obliquely, the lengthened sealing lip 322 has better elasticity integrally, when the bearing rotates, dynamic elastic sealing is formed between the lengthened sealing lip 322 and the transmission mandrel 1, the friction torque between the lengthened sealing lip 322 and the transmission mandrel 1 can be greatly reduced, thus, the abrasion of the sealing lip can be effectively reduced, the grease leakage prevention performance of the bearing is improved, the service life of the outer sealing piece 32 is prolonged, and the maintenance cost is reduced.

Be equipped with claw groove 22 on the 2 inner walls of bearing inner race, 4 outer wall one ends of roller holder are turned over outwards and are formed lock position jack catch 42, lock position jack catch 42 size and claw groove 22 phase-match, 4 installation backs of roller holder, lock position jack catch 42 card is gone into in the claw groove 22, like this 4 installation backs of roller holder, its mounted position is just locked, at the bearing operation in-process, axial float can not appear in cylindrical roller 41, can promote the operating stability of bearing by a wide margin like this, bring positive effect for bearing life's improvement.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.

Claims

1. The utility model provides a long-life coupling bearing, includes transmission dabber (1), bearing inner race (2), combination sealing member (3), its characterized in that: bearing inner race (2) cover is established in transmission dabber (1) the outside, the inner wall both ends of bearing inner race (2) all are equipped with seal groove (21), two built-up seal spare (3) are installed respectively on two seal grooves (21), install roller holder (4), spin holder (5) between transmission dabber (1), bearing inner race (2), install a plurality of cylindrical roller (41) on roller holder (4), install a plurality of spin (51) on spin holder (5).

2. The long life shaft coupling bearing of claim 1, wherein: the combined sealing element (3) comprises an inner sealing element (31) and an outer sealing element (32), and the inner sealing element (31) and the outer sealing element (32) are mutually overlapped and connected.

3. The long life axial bearing of claim 2, wherein: the inner diameter position of the inner sealing piece (31) is provided with an inner sealing lip (311), and the inner sealing lip (311) is abutted to the outer wall of the transmission mandrel (1).

4. The long life shaft coupling bearing of claim 2, wherein: be equipped with block flange (321) on outer sealing member (32), be equipped with joint draw-in groove (312) on inner sealing member (31), block flange (321) size and joint draw-in groove (312) phase-match, outer sealing member (32) are through block flange (321) and joint draw-in groove (312) cooperation joint on inner sealing member (31), be connected with round extension seal lip (322) on outer sealing member (32) lateral wall, extension seal lip (322) slope is connected, the outside head of extension seal lip (322) is contradicted on transmission dabber (1) outer wall.

5. The long life axial bearing of claim 4, wherein: the head end thickness of the lengthened sealing lip (322) is larger than the waist end thickness of the lengthened sealing lip (322).

6. The long life axial bearing of claim 1, wherein: be equipped with claw groove (22) on bearing inner race (2) inner wall, roller holder (4) outer wall one end is rolled over outward and is rolled over and form position-locking jack catch (42), position-locking jack catch (42) size and claw groove (22) phase-match, roller holder (4) installation back, position-locking jack catch (42) card is gone into in claw groove (22).