CN210318213U

CN210318213U - Bearing type lock catch retainer ring mounting structure

Info

Publication number: CN210318213U
Application number: CN201921310013.3U
Authority: CN
Inventors: 冷晓东; 倪松岩; 张利; 倪佳
Original assignee: Wuxi Qisheng Import And Export Co ltd
Current assignee: Wuxi Qisheng Import And Export Co ltd
Priority date: 2019-08-13
Filing date: 2019-08-13
Publication date: 2020-04-14
Anticipated expiration: 2029-08-13

Abstract

The utility model relates to a bearing retainer ring, specific bear formula hasp retaining ring mounting structure that says so belongs to bearing retainer ring technical field. The split type inner retainer ring is sleeved in the mounting ring groove, the adjusting gasket is arranged between the split type inner retainer ring and the thrust bearing, the adjusting gasket is tightly propped against the thrust bearing at the front end of the split type inner retainer ring, and the rear end of the split type inner retainer ring is tightly propped against the mounting shaft; the outer ring of the split type inner retainer ring is provided with an outer locking ring, the inner surface of the outer locking ring and the outer surface of the split type inner retainer ring are provided with concave-convex structures which are matched with each other, and the outer locking ring and the split type inner retainer ring are connected in a locking manner through the concave-convex structures. The utility model discloses an uneven structure between split type interior retaining ring and the outer lock circle realizes zonulae occludens between the two for the retaining ring subassembly can bear very big axial load.

Description

Bearing type lock catch retainer ring mounting structure

Technical Field

The utility model relates to a bearing retainer ring, specific bear formula hasp retaining ring mounting structure that says so belongs to bearing retainer ring technical field.

Background

In the prior art, the bearing retainer rings are generally divided into two types: one is an elastic clamp spring type check ring, and the other is a check washer and a locking nut check ring. The elastic clamp spring type check ring is an axial positioning mode which is most widely applied, a limiting part does not need pre-tightening force, positioning is carried out by utilizing a groove on a shaft, and the axial bearing capacity is general; the loosening-stopping washer and the locking nut are used for positioning the axial parts in a mode of loosening through threaded matching with the clamping groove, pretightening force is achieved, axial bearing capacity is high, and the bearing or the washer is not loosened due to abrasion and deformation after long-time use, so that the original bearing capacity cannot be maintained for a long time.

Therefore, when the bearing retainer ring is used in a thrust bearing, the existing bearing retainer ring is easy to lose efficacy under the action of long-time high load, and equipment is damaged.

Disclosure of Invention

The utility model aims to overcome the defects, thereby providing a bearing type lock catch retainer ring mounting structure which has large axial bearing capacity and can avoid the situation that a thrust bearing is loosened under the condition of large axial load; meanwhile, pretightening force can be given to the thrust bearing, and the thrust bearing is prevented from loosening or losing efficacy after being worn.

According to the technical scheme provided by the utility model, a bear formula hasp retaining ring mounting structure is including installing axle, thrust bearing and retaining ring subassembly, install the epaxial installation annular that is used for installing the retaining ring subassembly, install epaxial assembly thrust bearing, thrust bearing one side is equipped with retaining ring subassembly, characterized by: the check ring assembly comprises an adjusting gasket, a split type inner check ring and an outer locking ring, the split type inner check ring is sleeved in the mounting ring groove, the adjusting gasket is arranged between the split type inner check ring and the thrust bearing, the adjusting gasket is tightly propped against the thrust bearing by the front end of the split type inner check ring, and the rear end of the split type inner check ring is tightly propped against the mounting shaft; the outer ring of the split type inner check ring is provided with an outer locking ring, the inner surface of the outer locking ring and the outer surface of the split type inner check ring are provided with concave-convex structures which are matched with each other, and the outer locking ring and the split type inner check ring are connected in a locking manner through the concave-convex structures; the installation annular groove rear end is equipped with the pretension terminal surface, and split type inner retainer ring rear end inner circle is equipped with the pretension inclined plane, pretension inclined plane and pretension terminal surface in close contact with for split type inner retainer ring is held tightly with the installation annular of installation axle, and terminal surface and adjusting shim top are tight before the split type inner retainer ring simultaneously.

Furthermore, the concave-convex structure comprises an outer convex ring and an outer groove which are arranged on the inner surface of the outer lock ring, and an inner groove and an inner convex ring which are arranged on the outer surface of the split inner retainer ring, wherein the outer convex ring is connected with the inner groove in an inosculating way, and the outer groove is connected with the inner convex ring in an inosculating way.

Furthermore, split type inner retainer ring includes two semicircle rings that the symmetry set up, and the tip of two semicircle rings contacts mutually and constitutes circular structure.

Furthermore, a guide cambered surface is arranged on the outer ring at the rear end of the split type inner retainer ring.

Compared with the prior art, the utility model has the advantages that:

the utility model has simple, compact and reasonable structure, and realizes the tight connection between the split type inner retainer ring and the outer lock ring through the concave-convex structure between the two, so that the retainer ring component can bear large axial load; meanwhile, under the tight contact of the pre-tightening inclined plane and the pre-tightening end face, the split type inner retainer ring is tightly held with the mounting ring groove of the mounting shaft, and meanwhile, the front end face of the split type inner retainer ring is tightly propped against the adjusting gasket, so that any loosening cannot occur, and the inner ring and the outer ring cannot deform.

Drawings

Fig. 1 is a front view half-section view of the utility model.

Fig. 2 is an exploded perspective view of the present invention.

Fig. 3 is a partial enlarged view of the retainer ring assembly of the present invention.

Description of reference numerals: 1-mounting shaft, 2-thrust bearing, 3-adjusting gasket, 4-semicircular ring, 5-external locking ring, 6-external convex ring, 7-external groove, 8-internal groove, 9-internal convex ring, 10-mounting ring groove, 11-pre-tightening end face, 12-pre-tightening inclined face and 13-guiding arc face.

Detailed Description

The invention will be further described with reference to the embodiments shown in the drawings to which:

the forward and rearward directions described herein refer to the end facing the thrust bearing and the end facing away from the thrust bearing, respectively.

As shown in fig. 1-3, the utility model discloses mainly including installation axle 1, thrust bearing 2 and retaining ring subassembly, install the epaxial assembly thrust bearing 2 of axle 1, thrust bearing 2 one side is equipped with the retaining ring subassembly. The mounting shaft 1 is provided with a mounting ring groove 10 for mounting a retainer ring assembly,

the retaining ring subassembly includes adjusting shim 3, split type interior retaining ring and outer lock ring 5, and split type interior retaining ring suit is equipped with adjusting shim 3 between split type interior retaining ring and the thrust bearing 2 in the mounting ring groove 10, and split type interior retaining ring front end is tight on thrust bearing 2 with adjusting shim 3 top, and split type interior retaining ring rear end is tight with installation axle 1 top.

The outer ring of the split type inner retainer ring is provided with an outer locking ring 5, the inner surface of the outer locking ring 5 and the outer surface of the split type inner retainer ring are provided with concave-convex structures which are matched with each other, and the outer locking ring 5 and the split type inner retainer ring are connected in a locking manner through the concave-convex structures, so that the axial bearing capacity of the retainer ring assembly is improved.

The concave-convex structure comprises an outer convex ring 6 and an outer groove 7 which are arranged on the inner surface of the outer lock ring 5, and an inner groove 8 and an inner convex ring 9 which are arranged on the outer surface of the split inner retainer ring, wherein the outer convex ring 6 is connected with the inner groove 8 in an inosculating way, and the outer groove 7 is connected with the inner convex ring 9 in an inosculating way.

The split type inner retainer ring comprises two semicircular rings 4 which are symmetrically arranged, and the end parts of the two semicircular rings 4 are mutually contacted to form a circular structure.

The rear end of the installation ring groove 10 is provided with a pre-tightening end face 11, the inner ring at the rear end of the split type inner check ring is provided with a pre-tightening inclined face 12, and the pre-tightening inclined face 12 is in close contact with the pre-tightening end face 11, so that the split type inner check ring is tightly held with the installation ring groove 10 of the installation shaft 1, and meanwhile, the front end face of the split type inner check ring is tightly pressed against the adjusting gasket.

In order to facilitate the installation of the outer locking ring 5, a guide arc surface 13 is arranged on the outer ring at the rear end of the split inner retainer ring, and the guide arc surface 13 can enable the outer locking ring 5 to be smoothly pressed on the outer ring of the split inner retainer ring.

The utility model relates to a retaining ring mounting structure can avoid thrust bearing to drop or axial float, lateral shifting from the axle to can bear the load much higher than ordinary retaining ring. The utility model discloses an uneven structure between split type interior retaining ring and the outer lock circle realizes zonulae occludens between the two for the retaining ring subassembly can bear very big axial load. Meanwhile, under the tight contact of the pre-tightening inclined plane 12 and the pre-tightening end face 11, the split type inner retainer ring is tightly held with the mounting ring groove of the mounting shaft, and meanwhile, the front end face of the split type inner retainer ring is tightly propped against the adjusting gasket, so that any loosening cannot occur, and the inner ring and the outer ring cannot deform.

Claims

1. The utility model provides a bear formula hasp retaining ring mounting structure, includes installation axle (1), thrust bearing (2) and retaining ring subassembly, be equipped with installation annular (10) that are used for installing the retaining ring subassembly on installation axle (1), assemble thrust bearing (2) on installation axle (1), thrust bearing (2) one side is equipped with retaining ring subassembly, characterized by: the check ring assembly comprises an adjusting gasket (3), a split type inner check ring and an outer locking ring (5), the split type inner check ring is sleeved in the mounting ring groove (10), the adjusting gasket (3) is arranged between the split type inner check ring and the thrust bearing (2), the adjusting gasket (3) is tightly propped against the thrust bearing (2) by the front end of the split type inner check ring, and the rear end of the split type inner check ring is tightly propped against the mounting shaft (1); an outer locking ring (5) is arranged on the outer ring of the split type inner retainer ring, concave-convex structures which are matched with each other are arranged on the inner surface of the outer locking ring (5) and the outer surface of the split type inner retainer ring, and the outer locking ring (5) and the split type inner retainer ring are connected in a locking manner through the concave-convex structures; the rear end of the installation ring groove (10) is provided with a pre-tightening end face (11), the inner ring of the rear end of the split type inner check ring is provided with a pre-tightening inclined face (12), and the pre-tightening inclined face (12) is in close contact with the pre-tightening end face (11), so that the split type inner check ring is tightly held with the installation ring groove (10) of the installation shaft (1), and meanwhile the front end face of the split type inner check ring is tightly pressed with the adjusting gasket (3).

2. A load bearing snap ring mounting arrangement as claimed in claim 1, wherein: the concave-convex structure comprises an outer convex ring (6) and an outer groove (7) which are arranged on the inner surface of the outer lock ring (5), and an inner groove (8) and an inner convex ring (9) which are arranged on the outer surface of the split inner retainer ring, wherein the outer convex ring (6) is connected with the inner groove (8) in an inosculating way, and the outer groove (7) is connected with the inner convex ring (9) in an inosculating way.

3. A load bearing snap ring mounting arrangement as claimed in claim 1, wherein: the split type inner retainer ring comprises two semicircular rings (4) which are symmetrically arranged, and the end parts of the two semicircular rings (4) are mutually contacted to form a circular structure.

4. A load bearing snap ring mounting arrangement as claimed in claim 1, wherein: and a guide arc surface (13) is arranged on the outer ring of the rear end of the split type inner retainer ring.