CN213088514U - High-strength needle bearing excircle - Google Patents

Abstract

The utility model discloses a high strength bearing excircle, including the excircle framework, the outer terminal surface of excircle framework sets up to the conical surface, first recess has been seted up on the conical surface, first recess symmetry sets up the both sides of conical surface, both sides all be provided with the non slipping spur on the conical surface, the internal surface of excircle framework is provided with the raceway surface, be provided with wear-resisting plastic layer on the raceway surface, first recess has been seted up to the surface of excircle framework, first recess symmetry sets up the both sides of excircle framework, both sides the tip of first recess is located the thread groove has been seted up in the excircle framework. The utility model discloses a set up the outer terminal surface of excircle framework into the conical surface, effort when can differentiating with the external contact has reduced radial load and axial load, has protected the life of whole bearing excircle, and when simultaneously with the external contact, through setting up the non slipping spur, improved the coefficient of friction with the outer wall, it is more firm to make the location.

Description

High-strength needle bearing excircle

Technical Field

The utility model belongs to the technical field of the bearing, concretely relates to high strength bearing excircle.

Background

Needle bearings are roller bearings with cylindrical rollers, which are both thin and long relative to their diameter. Such rollers are called needles. The bearing has high load bearing capacity despite its small cross section, and the needle roller bearing is provided with long and thin rollers, so that it has compact radial structure, and its inner diameter size and load capacity are the same as other bearing types, and its outer diameter is minimum, so that it is specially applicable to bearing structure whose radial installation size is limited.

Present needle bearing excircle still has some problems: the bearing is in the installation use, and when the excircle atress was great, the condition of excircle axial displacement can take place, influences the stability of bearing work like this, has shortened the life of bearing, and the dustproof effect of excircle is relatively poor simultaneously, for this reason we propose a high strength bearing excircle.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high strength bearing excircle to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high strength bearing excircle, includes the excircle framework, the outer terminal surface of excircle framework sets up to the toper face, first recess has been seted up on the toper face, first recess symmetry sets up the both sides of toper face, both sides all be provided with the non slipping spur on the toper face, the internal surface of excircle framework is provided with the raceway surface, be provided with wear-resistant plastic layer on the raceway surface, heavy groove has been seted up to the surface of excircle framework, heavy groove symmetry sets up the both sides of excircle framework, both sides the tip of heavy groove is located set up the thread groove in the excircle framework, be provided with dustproof ring in the first recess, the internal surface integrated into one piece of dustproof ring is provided with the connecting block, the connecting block with thread groove threaded connection.

Preferably, the thickness of the wear-resistant plastic layer is 2.5-3.5 mm.

Preferably, the wear-resistant plastic layer is axially provided with a groove, the width of the groove is 1-3 mm, and the depth of the groove is 0.3-0.7 mm.

Preferably, the material of the outer circle frame body is high-carbon chromium bearing steel.

Preferably, the inclination of the conical surface is set to 10 to 20 degrees.

Preferably, the first grooves are uniformly distributed on the conical surface, and the adjacent first grooves are arranged at intervals of 4-6 mm.

Preferably, the dustproof circular ring is provided with second grooves, and the second grooves are symmetrically arranged on two sides of the dustproof circular ring.

Compared with the prior art, the beneficial effects of the utility model are that:

(1) the utility model discloses a set up the outer terminal surface of excircle framework into the conical surface, effort when can differentiating with the external contact has reduced radial load and axial load, has protected the life of whole bearing excircle, and when simultaneously with the external contact, through setting up the non slipping spur, improved the coefficient of friction with the outer wall, it is more firm to make the location.

(2) The utility model discloses a set up dustproof ring, through with connecting block threaded connection in the thread groove, make dustproof ring can shelter from the bearing inner circle to improve dustproof effect, reduced the noise when bearing rotates.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

fig. 3 is a left side view of fig. 1 in accordance with the present invention;

fig. 4 is a schematic structural view of the middle wear-resistant plastic layer of the present invention.

In the figure: 1. an outer circular frame body; 2. a conical surface; 3. a first groove; 4. anti-skid blocks; 5. rolling a track surface; 6. a wear-resistant plastic layer; 7. sinking a groove; 8. a thread groove; 9. a dust-proof ring; 10. connecting blocks; 11. grooving; 12. a second groove.

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. 1-4, the present invention provides a technical solution: the utility model provides a high strength bearing excircle, including cylindrical frame 1, cylindrical frame 1's outer terminal surface sets up to conical surface 2, first recess 3 has been seted up on the conical surface 2, first recess 3 symmetry sets up the both sides at conical surface 2, all be provided with non slipping spur 4 on the conical surface 2 of both sides, cylindrical frame 1's internal surface is provided with raceway surface 5, be provided with wear-resisting plastic layer 6 on the raceway surface 5, heavy groove 7 has been seted up to cylindrical frame 1's surface, heavy groove 7 symmetry sets up the both sides at cylindrical frame 1, threaded groove 8 has been seted up in cylindrical frame 1 to the tip of both sides heavy groove 7, be provided with dustproof ring 9 in the first recess 3, dustproof ring 9's internal surface integrated into one piece is provided with connecting block 10, connecting block 10 and threaded groove 8 threaded connection.

In this embodiment, preferably, the thickness of the wear-resistant plastic layer 6 is 2.5 to 3.5 mm.

In this embodiment, preferably, the wear-resistant plastic layer 6 is axially provided with a slot 11, the width of the slot 11 is 1-3 mm, and the depth is 0.3-0.7 mm.

In this embodiment, preferably, the material of the outer circular frame 1 is high-carbon chromium bearing steel, which can increase the hardness and strength of the outer circle of the bearing and increase the service life.

In the present embodiment, the inclination of the tapered surface 2 is preferably set to 10 to 20 degrees.

In the present embodiment, preferably, the first grooves 3 are uniformly distributed on the tapered surface 2, and the adjacent first grooves 3 are arranged at an interval of 4-6 mm.

In this embodiment, preferably, the dustproof ring 9 is provided with a second groove 12, the second groove 12 is symmetrically arranged on two sides of the dustproof ring 9, the second groove 12 can facilitate the insertion of a pin rod, the dustproof ring 9 can be conveniently rotated, and the dustproof ring 9 can be conveniently disassembled and assembled.

The utility model discloses a structural principle: the utility model discloses a set up the outer terminal surface of excircle framework 1 as conical surface 2, can differentiate the effort when contacting with the outside, reduced radial load and axial load, protected the life of whole bearing excircle, when contacting with the outside simultaneously, through setting up non slipping spur 4, improved the coefficient of friction with the outer wall, make the location more firm; through setting up dustproof ring 9, through with connecting block 10 threaded connection in thread groove 8, make dustproof ring 9 can shelter from the bearing inner race to improve dustproof effect, reduced the noise when the bearing rotates.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (7)

1. The utility model provides a high strength bearing excircle, includes excircle framework (1), its characterized in that: the outer end face of the outer circular frame body (1) is set to be a conical face (2), a first groove (3) is formed in the conical face (2), the first groove (3) is symmetrically arranged on two sides of the conical face (2), anti-skidding blocks (4) are arranged on the conical face (2) on two sides, a rolling surface (5) is arranged on the inner surface of the outer circular frame body (1), a wear-resistant plastic layer (6) is arranged on the rolling surface (5), a sink groove (7) is formed in the outer surface of the outer circular frame body (1), the sink groove (7) is symmetrically arranged on two sides of the outer circular frame body (1), the end portions of the sink groove (7) on two sides are located in a threaded groove (8) formed in the outer circular frame body (1), a dustproof circular ring (9) is arranged in the first groove (3), and a connecting block (10) is arranged on the inner surface of the dustproof circular ring (9) in, the connecting block (10) is in threaded connection with the thread groove (8).

2. The high strength needle bearing outer circle of claim 1, wherein: the thickness of the wear-resistant plastic layer (6) is 2.5-3.5 mm.

3. The high strength needle bearing outer circle of claim 1, wherein: the wear-resistant plastic layer (6) is axially provided with a groove (11), the width of the groove (11) is 1-3 mm, and the depth of the groove is 0.3-0.7 mm.

4. The high strength needle bearing outer circle of claim 1, wherein: the outer circle frame body (1) is made of high-carbon chromium bearing steel.

5. The high strength needle bearing outer circle of claim 1, wherein: the inclination of the conical surface (2) is set to be 10-20 degrees.

6. The high strength needle bearing outer circle of claim 1, wherein: the first grooves (3) are uniformly distributed on the conical surface (2), and the interval between every two adjacent first grooves (3) is 4-6 mm.

7. The high strength needle bearing outer circle of claim 1, wherein: and a second groove (12) is formed in the dustproof circular ring (9), and the second grooves (12) are symmetrically arranged on two sides of the dustproof circular ring (9).

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