CN213899800U

CN213899800U - Maintenance-free triangular guide roller

Info

Publication number: CN213899800U
Application number: CN202022820076.2U
Authority: CN
Inventors: 向洪鑫; 朱海涛; 王林峰; 陈广; 陈少良
Original assignee: Yixing Bodeng Taike Industrial Equipment Co ltd
Current assignee: Yixing Bodeng Taike Industrial Equipment Co ltd
Priority date: 2020-11-30
Filing date: 2020-11-30
Publication date: 2021-08-06
Anticipated expiration: 2030-11-30

Abstract

The utility model discloses a non-maintaining triangle-shaped guide roller, be in including axle, axle sleeve and cup joint epaxial a set of bearing, the bearing both ends are equipped with and prevent axial displacement's bearing stop device, its characterized in that are made to the bearing: the outer end face of the bearing is provided with a bearing sealing device, and the longitudinal section of the outline playing a guiding role on the shaft sleeve is at an included angle of 60-120 degrees. The guide roller is provided with a multiple sealing structure, is free of maintenance throughout the life, greatly prolongs the service life, and reduces the operation cost.

Description

Maintenance-free triangular guide roller

Technical Field

The utility model relates to a gyro wheel, concretely relates to non-maintaining triangle-shaped guide roller.

Background

The scraper plate on the scraper needs to move back and forth in the operation process, and because the operation environment is severe, a guide device needs to be equipped under the driving of the oil cylinder in order to ensure that the scraper plate only moves in the linear direction.

The guide roller in the prior art often has the problems of need of oil injection maintenance, short service life, high operation cost or poor guide effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a maintenance-free triangular guide roller, which is provided with a plurality of sealing structures, is maintenance-free for the whole life, greatly prolongs the service life and reduces the operation cost; the technical scheme is as follows:

a maintenance-free triangular guide roller comprises a shaft, a shaft sleeve and a group of bearings sleeved on the shaft, wherein bearing limiting devices for preventing the bearings from moving axially are arranged at two ends of each bearing, a bearing sealing device is arranged on the outer end face of each bearing, and the longitudinal section of the outline playing a guiding role on the shaft sleeve is provided with an included angle of 60-120 degrees; preferably, the longitudinal section of the profile on the shaft sleeve for guiding is at an included angle of 90 degrees, and a fillet is chamfered at the included angle.

Specifically, the bearing sealing device includes: the oil seal is positioned between the shaft and the bearing sealing end cover, and the bearing sealing end cover is fixedly connected with the shaft sleeve; the bearing sealing end cover and the shaft sleeve can be connected through screws.

In order to further enhance the sealing, a first sealing ring is arranged between the bearing sealing end cover and the shaft; a second sealing ring is arranged between the bearing sealing end cover and the shaft sleeve; the first sealing ring can be a rubber dustproof sealing ring, and the second sealing ring can be an O-shaped sealing ring; along the axial direction, the oil seal is arranged between the bearing sealing end cover and the bearing limiting device; in the radial direction, the oil seal is arranged between the shaft and the bearing seal end cover, and the oil seal is tightly attached to the shaft and the bearing seal end cover; the oil seal can be a framework oil seal.

The bearing both ends are equipped with the restriction bearing stop device of bearing axial displacement, bearing stop device includes: the bearing comprises a shaft sleeve inner end surface for axially limiting the bearings from the inner side of the group of bearings, and a bearing outer side limiting part for axially limiting the bearings from the outer side. The bearing outside limiting part can be selected specifically: the bearing outer side limiting pieces of the group of bearings comprise clamp springs; or the bearing outer side limiting pieces of the group of bearings comprise clamp springs and gaskets, and the gaskets are arranged between the clamp springs and the bearings; or the bearing outer side limiting part of one bearing comprises a clamp spring, and the bearing outer side limiting part of the other bearing comprises a flange arranged on the shaft.

The axle both ends are equipped with and are used for with the gyro wheel carries out fixed axle fastener, axle fastener specifically can select: the clamp, the both ends of axle are fixed through the clamp respectively.

The bearing can be a double-row deep groove ball bearing or a double-row angular contact ball bearing; compared with a single-row deep groove ball bearing, the double-row deep groove ball bearing can bear radial loads and axial loads acting in two directions; in comparison with a single-row angular contact ball bearing, a double-row angular contact ball bearing can withstand both radial loads and axial loads acting in both directions.

The utility model has the advantages that:

1) the triangular guide roller of the utility model is provided with multiple sealing structures, is maintenance-free for the whole life, greatly prolongs the service life and reduces the operation cost;

2) the longitudinal section of the outline playing a guiding role on the shaft sleeve of the triangular guide roller is at an included angle of 90 degrees, and the square pipe is matched for use, so that the guiding and limiting effects can be realized.

3) The triangular guide roller of the utility model has relatively low processing cost; specifically, the method comprises the following steps: the cutting area for processing the shaft sleeve of the triangular guide roller is small; the cutting speed of the shaft sleeve processing of the triangular guide roller is high.

Drawings

Fig. 1 is a first schematic structural view of a triangular guide roller according to the present invention;

fig. 2 is a schematic structural view of a triangular guide roller according to the present invention;

fig. 3 is a schematic structural view of a sectional view taken along a-a in fig. 2.

In the figure: 1. the shaft comprises a shaft body, 2, a shaft sleeve, 3, a bearing, 4, a bearing limiting device, 400, a shaft sleeve inner end face, 410, a flange, 411, a gasket, 412, a clamp spring, 5, a hoop, 6, a bearing sealing device, 600, a bearing sealing end cover, 610, an oil seal, 620, a dustproof sealing ring, 630 and an O-shaped sealing ring.

Detailed Description

Example 1

Referring to fig. 1 and 2, explain the utility model discloses, a maintenance-free triangle-shaped guide roller, including axle 1, axle sleeve 2 and cup joint epaxial a set of bearing 3, 3 both ends of bearing are equipped with and prevent axial displacement's bearing stop device 4 is made to the bearing, 1 both ends of axle are equipped with and are used for with the gyro wheel carries out the axle fastener who fixes, the outer terminal surface of bearing is equipped with bearing sealing device 6, the longitudinal section of the profile that plays the guide effect on the axle sleeve 2 is 90 contained angles, and contained angle department has the fillet.

Referring to fig. 2, the bearing seal device 6 includes: the bearing sealing end cover 600 is connected with the shaft sleeve 2 through a countersunk head screw; a dustproof sealing ring 620 is further arranged between the bearing sealing end cover 600 and the shaft 1; an O-shaped sealing ring 630 is arranged between the bearing sealing end cover 600 and the shaft sleeve 2; in the axial direction, the oil seal 610 is arranged between the bearing seal end cover 600 and the bearing limiting device; in the radial direction, the oil seal 610 is arranged between the shaft 1 and the bearing seal end cover 600, and the oil seal 610 is tightly attached to the shaft 1 and the bearing seal end cover 600; guide roller's bearing from interior to exterior in proper order through the multiple sealing of oil blanket, sealing washer (including dustproof sealing washer and O type sealing washer) and bearing seal end cover, non-maintaining for the whole life.

Referring to fig. 2, the bearing position limiting device 4 includes: a shaft sleeve inner end surface 400 for axially limiting the bearing 3 from the inner side of the group of bearings, and a bearing outer side limiting member for axially limiting the bearing from the outer side; in this embodiment, the bearing outer-side limiting member specifically includes: the bearing outer side limiting part of one bearing comprises a clamp spring 412 and a gasket 411, the gasket 411 is arranged between the clamp spring 412 and the bearing 3, and the clamp spring 412 axially limits the bearing 3 by pressing the gasket 411 to prevent the bearing 3 from axially moving; the bearing outer limit stop of the other bearing comprises a flange 410 provided on the shaft.

The bearing stop device 4 may also consider the following embodiments: the limiting parts at the outer sides of the bearings of the 2 bearings comprise clamp springs, and the clamp springs tightly press the bearings to prevent the bearings from moving axially; or the bearing outside locating parts of the 2 bearings all comprise clamp springs and gaskets, the gaskets are arranged between the clamp springs and the bearings, and the clamp springs are used for axially limiting the bearings by tightly pressing the gaskets.

Referring to fig. 2, the two ends of the shaft 1 are fixed to the rollers by means of clips 5, although other fixing means are also conceivable.

The bearing 3 can be a double-row deep groove ball bearing or a double-row angular contact ball bearing.

Example 2

In contrast to exemplary embodiment 1, the longitudinal section of the guide contour of the bushing 2 is at an angle of 60 °.

Example 3

Different from the embodiment 1, the longitudinal section of the profile on the shaft sleeve 2 for guiding has an included angle of 60 degrees, and the included angle is chamfered with a round angle.

Example 4

In contrast to exemplary embodiment 1, the longitudinal section of the guide contour of the bushing 2 is angled by 120 °.

Example 5

Different from the embodiment 1, the longitudinal section of the profile on the shaft sleeve 2 for guiding is in an included angle of 120 degrees, and the included angle is chamfered with a round angle.

Example 6

In contrast to exemplary embodiment 1, the longitudinal section of the guide profile of the bushing 2 is angled by 90 °.

Claims

1. The utility model provides a non-maintaining triangle-shaped guide roller, includes axle, axle sleeve and cup joints epaxial a set of bearing, the bearing both ends are equipped with and prevent axial displacement's bearing stop device, its characterized in that are made to the bearing: the outer end face of the bearing is provided with a bearing sealing device, and the longitudinal section of the outline playing a guiding role on the shaft sleeve is at an included angle of 60-120 degrees.

2. The maintenance-free triangular guide roller of claim 1, wherein: the longitudinal section of the profile on the shaft sleeve for guiding is at an included angle of 90 degrees, and the included angle is chamfered with a fillet.

3. The maintenance-free triangular guide roller of claim 2, wherein: the bearing sealing device includes: the oil seal is positioned between the shaft and the bearing seal end cover, and the bearing seal end cover is fixedly connected with the shaft sleeve.

4. The maintenance-free triangular guide roller of claim 3, wherein: a first sealing ring is further arranged between the bearing sealing end cover and the shaft, and a second sealing ring is arranged between the bearing sealing end cover and the shaft sleeve.

5. The maintenance-free triangular guide roller of claim 3, wherein: along the axial direction, the oil seal is arranged between the bearing sealing end cover and the bearing limiting device; in a radial direction, the oil seal is disposed between the shaft and the bearing seal end cap.

6. The maintenance-free triangular guide roller of claim 2, wherein: the bearing stop device includes: the bearing comprises a shaft sleeve inner end surface for axially limiting the bearings from the inner side of the group of bearings, and a bearing outer side limiting part for axially limiting the bearings from the outer side.

7. The maintenance-free triangular guide roller of claim 6, wherein: the bearing outer side limiting pieces of the group of bearings comprise clamp springs; or the bearing outer side limiting pieces of the group of bearings comprise clamp springs and gaskets, and the gaskets are arranged between the clamp springs and the bearings; or the bearing outer side limiting part of one bearing comprises a clamp spring, and the bearing outer side limiting part of the other bearing comprises a flange arranged on the shaft.

8. The maintenance-free triangular guide roller of claim 2, wherein: and shaft fastening devices for fixing the rollers are arranged at two ends of the shaft.

9. The maintenance-free triangular guide roller of claim 8, wherein: the shaft fastening means comprises a clamp.

10. The maintenance-free triangular guide roller of claim 2, wherein: the bearing is a double-row deep groove ball bearing or a double-row angular contact ball bearing.