CN211059155U

CN211059155U - Axial anti-disengaging structure

Info

Publication number: CN211059155U
Application number: CN201922222844.1U
Authority: CN
Inventors: 黎志; 丘天求; 林奔遥
Original assignee: Yulin City Chuandi Machinary Manufacturing Co ltd
Current assignee: Yulin City Chuandi Machinary Manufacturing Co ltd
Priority date: 2019-12-12
Filing date: 2019-12-12
Publication date: 2020-07-21
Anticipated expiration: 2029-12-12

Abstract

The utility model discloses an axial anti-disengaging structure, establish the bearing cap at bearing axle tip including bearing axle and cover, the tip of bearing axle is equipped with the ring channel, be equipped with two semicircular spacing rings on the ring channel, the tip cover of bearing axle be equipped with the external diameter phase's of spacing ring anticreep circle that suits still includes with the anticreep circle carries out spacing axial stop gear. The utility model discloses an axial anti-disengaging structure sets up that two spacing rings carry out the bearing cap axial spacing, and the rethread anticreep circle carries out radial spacing with the spacing ring to it is spacing to carry out the axial with bearing cap and bearing axle fast, and the installation is quick, simple to operate, easy operation, it is spacing reliable.

Description

Axial anti-disengaging structure

Technical Field

The utility model relates to a shaft assembly technical field, more specifically say, it relates to an axial anti-disengaging structure.

Background

At present, a bearing cover on a wheel of an engineering machine and a rotating shaft penetrating through the bearing cover are limited by a clamping pin, but the clamping pin is easy to drop and break, so that the wheel is dropped, and troubles are brought to the walking of the engineering machine.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is not enough to the above-mentioned of prior art, the utility model aims at providing a simple to operate, spacing reliable axial anti-disengaging structure.

In order to realize the above object, the utility model provides an axial anti-disengaging structure, establish the bearing cap at bearing axle tip including bearing axle and cover, the tip of bearing axle is equipped with the ring channel, be equipped with two semicircular spacing rings on the ring channel, the tip cover of bearing axle be equipped with the anticreep circle that the external diameter of spacing ring suited still includes with the anticreep circle carries out spacing axial stop gear.

Furthermore, a stepped hole is formed in the anti-falling ring, the inner diameter of the large end of the stepped hole is matched with the outer diameter of the limiting ring, and the inner diameter of the small end of the stepped hole is matched with the outer diameter of the end part of the bearing shaft.

Furthermore, a limiting surface matched with the outer end surface of the limiting ring is arranged in the stepped hole.

As a further improvement, the axial limiting mechanism comprises a clamping block arranged on the outer end face of the bearing cover, the outer end of the clamping block is provided with an annular clamping groove which is circumferentially extended, the inner end of the anti-slip ring is provided with a clamping structure which can rotationally slide into the annular clamping groove, and one side of the annular clamping groove is provided with a limiting pin.

Furthermore, the annular clamping groove is a narrow outer groove and a wide inner groove, the clamping structure comprises a connecting block arranged on the outer wall of the anti-falling ring and a screw rod structure which is spirally inserted in the axial direction into the connecting block, and the head of the screw rod structure can be axially limited with the narrow outer groove and the wide inner groove.

Furthermore, the anti-drop ring is connected with the bearing shaft and the limiting ring in a relatively rotatable manner.

Advantageous effects

Compared with the prior art, the utility model discloses an axial anti-disengaging structure's beneficial effect as follows: this axial anti-disengaging structure has set up two spacing rings and has carried out the bearing cap axial spacing, and the rethread anticreep circle carries out radial spacing with the spacing ring to carry out the bearing cap and bearing axle axial spacing fast, the installation is quick, simple to operate, easy operation, it is spacing reliable.

Drawings

Fig. 1 is a schematic structural view of an axial anti-slip structure of the present invention;

FIG. 2 is a schematic structural view of the anti-coil-off device of the present invention;

FIG. 3 is a front view of the structure of the middle bearing cap of the present invention;

FIG. 4 is a left side view of the structure of the bearing cap of the present invention;

FIG. 5 is a schematic structural view of a stop collar of the present invention;

fig. 6 is a schematic view of a partial structure of the middle bearing shaft of the present invention.

In the figure: 1. a load bearing shaft; 2. a bearing cap; 3. an annular groove; 4. a limiting ring; 5. preventing the ring from falling off; 6. an axial limiting mechanism; 601. a clamping block; 602. an annular neck; 603. a snap-fit structure; 604. a spacing pin; 7. a stepped bore.

Detailed Description

The following detailed description of the present invention is provided in conjunction with the accompanying drawings, but it should be understood that the scope of the present invention is not limited by the following detailed description.

The specific implementation manner of the utility model is as follows: as shown in fig. 1-6, an axial anti-slip structure comprises a bearing shaft 1 and a bearing cover 2 sleeved on the end of the bearing shaft 1, wherein the end of the bearing shaft 1 is provided with an annular groove 3, the annular groove 3 is provided with two semicircular spacing rings 4, the end of the bearing shaft 1 is sleeved with an anti-slip ring 5 adapted to the outer diameter of the spacing rings 4, and the axial anti-slip structure further comprises an axial spacing mechanism 6 for spacing the anti-slip ring 5. In the axial anti-disengaging structure, after a bearing shaft 1 passes through a bearing cover 2, two plate circular limiting rings 4 are arranged in an annular groove 3, lubricating oil is added, so that the end surfaces of the limiting rings 4 are abutted against the end surfaces of the bearing cover 2, and the bearing cover 2 is limited; the anti-dropping ring 5 is sleeved on the limiting ring 4 to radially limit the limiting ring 4, so that the limiting ring 4 cannot fall off, the bearing cover 2 and the bearing shaft 1 can be axially limited after the anti-dropping ring 5 is locked, and the bearing cover 2 is prevented from falling off.

In this embodiment, a stepped hole 7 is provided in the anti-drop ring 5, the inner diameter of the large end of the stepped hole 7 is adapted to the outer diameter of the retainer ring 4, and the inner diameter of the small end of the stepped hole 7 is adapted to the outer diameter of the end of the bearing shaft 1.

A limiting surface which is matched with the outer end surface of the limiting ring 4 is arranged in the stepped hole 7.

In this embodiment, the axial limiting mechanism 6 includes a clamping block 601 disposed on the outer end surface of the bearing cap 2, an annular clamping groove 602 disposed in a circumferential extending manner is disposed at the outer end of the clamping block 601, one end of the clamping block 601 is open and disposed, a clamping structure 603 capable of sliding into the annular clamping groove 602 in a rotating manner is disposed at the inner end of the anti-slip ring 5, a limiting pin 604 is disposed on one side of the annular clamping groove 602, the limiting pin 604 is connected with the clamping block 601 through a thread, and relative displacement between the clamping structure 603 and the clamping block 601 is prevented.

In this embodiment, ring groove 602 is the narrow interior wide recess outward, and block structure 603 is including locating the screw rod structure that connecting block and axial spiral on the 5 outer walls of anticreep circle inserted the connecting block setting, and the connecting block is fixed with anticreep circle 5 through welding or bolt, and the head of screw rod structure can carry out the axial spacing with the narrow interior wide recess outward, overlaps anticreep circle 5 on spacing ring 4, then in rotatory anticreep circle 5 messenger screw rod structure's head slips into ring groove 602.

In this embodiment, two locking blocks 601 are arranged on the outer end surface of the bearing cap 2 in a central symmetry manner, and two locking structures 603 corresponding to the two locking blocks 601 are arranged at the inner end of the anti-slip ring 5. The two clamping blocks 601 and the clamping structure 603 which are centrosymmetric are used for axial limiting, so that the force balance of the anti-slip ring 5 is ensured.

In this embodiment, the anti-slip ring 5 is rotatably connected to the bearing shaft 1 and the retainer ring 4, that is, the anti-slip ring 5 is in clearance fit with the bearing shaft 1 and the retainer ring 4.

The above is only a preferred embodiment of the present invention, and it should be noted that for those skilled in the art, without departing from the structure of the present invention, several modifications and improvements can be made, which will not affect the utility of the invention and the utility of the patent.

Claims

1. The utility model provides an axial anti-disengaging structure, establishes bearing cap (2) at bearing axle (1) tip including bearing axle (1) and cover, its characterized in that, the tip of bearing axle (1) is equipped with ring channel (3), be equipped with two semicircular spacing rings (4) on ring channel (3), the tip cover of bearing axle (1) be equipped with anticreep circle (5) that the external diameter of spacing ring (4) suited still include with anticreep circle (5) carry out spacing axial stop gear (6).

2. The axial anti-drop structure according to claim 1, characterized in that a stepped hole (7) is arranged in the anti-drop ring (5), the inner diameter of the large end of the stepped hole (7) is adapted to the outer diameter of the limit ring (4), and the inner diameter of the small end of the stepped hole (7) is adapted to the outer diameter of the end part of the bearing shaft (1).

3. The axial anti-dropping structure according to claim 2, characterized in that a limiting surface corresponding to the outer end surface of the limiting ring (4) is arranged in the stepped hole (7).

4. The axial anti-dropping structure according to claim 1, 2 or 3, wherein the axial limiting mechanism (6) comprises a clamping block (601) arranged on the outer end surface of the bearing cover (2), the outer end of the clamping block (601) is provided with an annular clamping groove (602) extending circumferentially, the inner end of the anti-dropping ring (5) is provided with a clamping structure (603) capable of sliding into the annular clamping groove (602) in a rotating manner, and one side of the annular clamping groove (602) is provided with a limiting pin (604).

5. The axial anti-dropping structure according to claim 4, wherein the annular clamping groove (602) is a groove with a narrow outside and a wide inside, the clamping structure (603) comprises a connecting block arranged on the outer wall of the anti-dropping ring (5) and a screw structure axially and spirally inserted into the connecting block, and the head of the screw structure can axially limit the groove with the narrow outside and the wide inside.

6. The axial run-off prevention structure of claim 4, wherein the run-off prevention ring (5) is connected with the bearing shaft (1) and the limiting ring (4) in a relatively rotatable manner.