CN218267130U

CN218267130U - Tail bearing device

Info

Publication number: CN218267130U
Application number: CN202221835586.XU
Authority: CN
Inventors: 杜晓蕾
Original assignee: Kunming Ciba Mining Machinery Co Ltd
Current assignee: Kunming Ciba Mining Machinery Co Ltd
Priority date: 2022-07-15
Filing date: 2022-07-15
Publication date: 2023-01-10
Anticipated expiration: 2032-07-15

Abstract

The utility model provides a tail bearing device, which comprises a bearing body, a connecting device and a sealing device; the connecting device is used for connecting and fixing the bearing body and the spiral blade shaft, and the sealing device is used for sealing the bearing body; the utility model discloses a set up sealing device, can seal the bearing body to prevent that tiny grains of sand from getting into the bearing damage that this internal caused of bearing, reach extension afterbody bearing life's purpose.

Description

Tail bearing device

Technical Field

The utility model relates to a bearing technical field specifically is a afterbody bearing device.

Background

The tail bearing device is an important part of various mineral processing equipment such as a groove type ore washer, a spiral classifier, a spiral conveyor and the like, is arranged at the tail of the equipment, is soaked in liquid (ore pulp) for use, has higher requirement on sealing performance, and directly influences the service life of the tail bearing device and the operation rate of the equipment on the condition of the sealing performance.

Due to the particularity of the installation position, the tail bearing device can only be soaked in liquid (ore pulp) for use. The existing tail bearing device must be matched with a centrifugal pump and a water seal system for use. The main disadvantages of such a tail bearing arrangement are: the sealing is not good, and fine sand grains in the slurry enter the tail bearing device to damage the bearing, so that the tail bearing device is damaged; the service life of the tail bearing device is only 1-3 months, and then the tail bearing device needs to be stopped and replaced, thereby consuming time, having high labor intensity and high cost.

An object of the utility model is to provide a afterbody bearing device to solve the problem that mentions in the above-mentioned background art.

SUMMERY OF THE UTILITY MODEL

In order to achieve the above object, the present invention provides a tail bearing device, which comprises a bearing body, a connecting device and a sealing device; the connecting device is used for connecting and fixing the bearing body and the spiral blade shaft, and the sealing device is used for sealing the bearing body.

Preferably, the bearing body includes the bearing frame, connecting device includes main shaft and flange dish, sets up the main shaft outer wall the flange dish passes through the cooperation of bolt and nut and is connected fixedly with spiral blade hub connection, the main shaft is kept away from the one end of flange dish stretches into in the bearing frame, the bearing body still includes antifriction bearing, connecting device still includes bilateral symmetry and passes through bolted connection the connecting plate at main shaft both ends, and is left the connecting plate is used for the restriction antifriction bearing, and the right side the connecting plate is used for the restriction the flange dish.

Preferably, sealing device includes first bearing cap, second bearing cap, interior axle sleeve, outer axle sleeve, first annular gasket and second annular gasket, first bearing cap with the second bearing cap is respectively through the bolt fastening both ends about the bearing frame, the main shaft is equipped with first boss, interior axle sleeve is located first boss with between the ring flange, second annular gasket sets up interior axle sleeve with between the ring flange, the bearing frame is equipped with the second boss of inside concave yield, sets up and is in interior axle sleeve outside outer axle sleeve is located the second boss with between the second bearing cap, first annular gasket is located the second boss with between the outer axle sleeve.

Preferably, the automatic compensation device is used for the gaps at the left end and the right end of the first annular gasket and the second annular gasket.

Preferably, the automatic compensation device comprises a third boss, a fourth boss and a belleville spring, the third boss is arranged on the inner wall of the outer shaft sleeve, the fourth boss is arranged on the outer wall of the inner shaft sleeve, and at least one belleville spring is arranged between the third boss and the fourth boss which correspond to the left boss and the right boss.

Preferably, the O-shaped sealing ring is arranged between the third boss and the inner shaft sleeve, and the O-shaped sealing ring is arranged between the fourth boss and the outer shaft sleeve.

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

the utility model discloses a set up sealing device, can seal the bearing body to prevent that tiny grains of sand from getting into the bearing damage that this internal caused of bearing, reach extension afterbody bearing life's purpose.

Drawings

FIG. 1 is a schematic view of the present invention;

fig. 2 is an enlarged view of the region a of the present invention.

In the figure: 1. a bearing body; 11. a bearing seat; 12. a rolling bearing; 111. a second boss; 2. a connecting device; 21. a main shaft; 22. a flange plate; 23. a connecting plate; 211. a first boss; 3. a sealing device; 31. a first bearing cover; 32. a second bearing cover; 33. an inner sleeve; 34. an outer sleeve; 35. a first annular shim; 36. a second annular gasket; 37. an automatic compensation device; 371. a third boss; 372. a fourth boss; 373. a belleville spring; 4. an O-shaped sealing ring.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in the specification of the present invention are for the purpose of describing particular embodiments only and are not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

The present invention will be described in further detail with reference to the accompanying drawings.

Example one

Referring to fig. 1-2, the present invention provides a tail bearing device, which includes a bearing body 1, a connecting device 2 and a sealing device 3; the connecting device 2 is used for connecting and fixing the bearing body 1 and the spiral blade shaft, and the sealing device 3 is used for sealing the bearing body 1.

Please refer to fig. 1, the main shaft 21 and the helical blade shaft can be connected and fixed by arranging the flange 22 at the outer part of the main shaft 21; by providing the connecting plates 23 at the left and right ends of the main shaft 21, the rolling bearing 12 can be restricted by the left connecting plate 23, and the flange 22 can be restricted by the right connecting plate 23, thereby achieving the purpose of connecting the bearing body 1 and the helical blade shaft.

Referring again to fig. 2, the left side of the bearing housing 11 can be sealed by providing the first bearing cover 31, the right side of the bearing housing 11 can be sealed by providing the inner hub 33 between the first boss 211 and the flange 22, the second annular gasket 36 between the inner hub 33 and the flange 22, the bearing housing 11 having the second boss 111 recessed inward, the outer hub 34 provided outside the inner hub 33 between the second boss 111 and the second bearing cover 32, and the first annular gasket 35 between the second boss 111 and the outer hub 34.

Please refer to fig. 2 again, the automatic compensation device 37 is provided to compensate the gap between the left and right ends of the first annular gasket 35 and the second annular gasket 36, so as to ensure the sealing performance; by arranging at least one belleville spring 373 between the left and right corresponding third boss 371 and fourth boss 372, the force applied to the left and right sides by the third boss 371 and fourth boss 372 by the belleville spring 373 can push the outer sleeve 34 to press the first annular gasket 35 leftwards and push the inner sleeve 33 to press the second annular gasket 36 rightwards; by disposing the O-ring 4 between the third boss 371 and the inner sleeve 33 and disposing the O-ring 4 between the fourth boss 372 and the outer sleeve 34, the chamber between the third boss 371 and the fourth boss 372 for accommodating the disc spring 373 can be sealed.

The specific operation of the first embodiment is as follows:

the left end of the bearing seat 11 is fixed at the tail part of the groove body of the corresponding mineral processing equipment through the groove body tail supporting steel frame of the corresponding mineral processing equipment, the right end of the bearing seat 11 is fixedly connected with the second bearing cover 32 through a bolt, and the left end and the right end of the rolling bearing 12 are respectively limited through a connecting plate 23 and a first boss 211 and a second boss 111 corresponding to the upper line.

It should be noted that: sealing gaskets should be provided between the first and second bearing covers 31 and 32 and the bearing housing 11.

The present invention has been described above with reference to the accompanying drawings, and it is obvious that the present invention is not limited by the above-mentioned manner, if the method and the technical solution of the present invention are adopted, the present invention can be directly applied to other occasions without substantial improvement, and the present invention is within the protection scope of the present invention.

Claims

1. A tail bearing assembly characterized by: comprises a bearing body (1), a connecting device (2) and a sealing device (3);

the connecting device (2) is used for connecting and fixing the bearing body (1) and the spiral blade shaft, and the sealing device (3) is used for sealing the bearing body (1).

2. A tail bearing assembly according to claim 1, wherein: bearing body (1) includes bearing frame (11), connecting device (2) include main shaft (21) and flange dish (22), set up and are in main shaft (21) outer wall flange (22) are fixed through the cooperation of bolt and nut and spiral blade hub connection, main shaft (21) are kept away from the one end of flange dish (22) stretches into in bearing frame (11), bearing body (1) still includes antifriction bearing (12), connecting device (2) still include bilateral symmetry and pass through bolted connection in connecting plate (23) at main shaft (21) both ends, left connecting plate (23) are used for the restriction antifriction bearing (12), the right side connecting plate (23) are used for the restriction flange dish (22).

3. A tail bearing assembly according to claim 2, wherein: sealing device (3) include first bearing cover (31), second bearing cover (32), interior axle sleeve (33), outer axle sleeve (34), first annular gasket (35) and second annular gasket (36), first bearing cover (31) with second bearing cover (32) are respectively through the bolt fastening both ends about bearing frame (11), main shaft (21) are equipped with first boss (211), interior axle sleeve (33) are located first boss (211) with between ring flange (22), second annular gasket (36) set up interior axle sleeve (33) with between ring flange (22), bearing frame (11) are equipped with inside recessed second boss (111), set up interior axle sleeve (33) outside outer axle sleeve (34) are located second boss (111) with between second bearing cover (32), first annular gasket (35) are located second boss (111) with between outer axle sleeve (34).

4. A tail bearing assembly according to claim 3, wherein: the automatic compensation device (37) is further included, and the automatic compensation device (37) is used for gaps at the left end and the right end of the first annular gasket (35) and the second annular gasket (36).

5. A tail bearing assembly according to claim 4, wherein: the automatic compensation device (37) comprises a third boss (371), a fourth boss (372) and a belleville spring (373), wherein the third boss (371) is arranged on the inner wall of the outer shaft sleeve (34), the fourth boss (372) is arranged on the outer wall of the inner shaft sleeve (33), and at least one belleville spring (373) is arranged between the third boss (371) and the fourth boss (372) which correspond to each other in the left-right direction.

6. The tail bearing assembly of claim 5, wherein: still include O type sealing washer (4) set up third boss (371) with between interior axle sleeve (33), O type sealing washer (4) set up fourth boss (372) with between outer axle sleeve (34).