CN218844661U

CN218844661U - Shaft sealing assembly of slurry pump

Info

Publication number: CN218844661U
Application number: CN202223187423.8U
Authority: CN
Inventors: 安丽; 张锋; 吕科廷; 李洪磊; 谢义乐; 李芳�; 刘光民; 任志文; 宋文凯; 张硕
Original assignee: Shandong Zhangqiu Blower Co Ltd
Current assignee: Shandong Zhangqiu Blower Co Ltd
Priority date: 2022-11-30
Filing date: 2022-11-30
Publication date: 2023-04-11
Anticipated expiration: 2032-11-30

Abstract

The utility model belongs to the technical field of shaft seal, in particular to a slurry pump shaft seal assembly, which comprises a bearing gland, a labyrinth shaft sleeve and a framework oil seal, and also comprises a protective component; the protective part includes protection casing, baffle and protective ring, and the protection casing is installed at the bearing gland right-hand member, and baffle installation is between protection casing and labyrinth axle sleeve, and the protective ring sets firmly in the drainage intracavity that the bearing gland was seted up, and water and dust can flow along the circumference surface in drainage chamber, and the skeleton oil blanket is located the bearing gland and is close to the bearing end, compares prior art, the beneficial effects of the utility model reside in that: (1) The protective cover and the baffle plate can shield water and dust, so that a large amount of water is prevented from directly entering a gap between the bearing gland and the labyrinth shaft sleeve; (2) The bearing gland has been seted up and has been arranged the water chamber, arranges water chamber one end and has set firmly the baffle, and water and dust can follow the circumference of arranging the water chamber and flow out, avoids water and dust direct contact axle and bearing, prolongs the life of axle and bearing.

Description

Shaft seal assembly of slurry pump

Technical Field

The utility model belongs to the technical field of the shaft seal, concretely relates to sediment thick liquid pump shaft seal assembly.

Background

The slurry pump is a pump for conveying solid-liquid mixture, which is manufactured according to the centrifugal principle, and has wide application range, such as: ore pulp, gravel, ash and the like, so the working environment of the slurry pump is full of a large amount of dust and water, the impeller in the pump body of the slurry pump is driven by the driving shaft, one end of the driving shaft connected with the impeller faces the severe working environment, therefore, the driving shaft needs to be protected through sealing, and the existing technology mostly adopts packing sealing and mechanical sealing, so that after the use time is long, water splashing and water leakage can occur, and splashing can occur under severe conditions; in addition, for the bearing of the driving shaft, the bearing is also an important part for ensuring the reliable operation of the slurry pump, and needs to be protected in a sealing way, and most of the prior art adopts a mode of combining a framework oil seal and a labyrinth seal, so that the dustproof and slightly waterproof effects can be achieved, and the guide and the blocking of moisture and dust before the moisture and dust are contacted with the sealing structure cannot be achieved.

Therefore, a new technical solution is needed to solve the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model provides a sediment thick liquid pump shaft seal assembly to foretell problem.

In order to achieve the above purpose, the technical scheme of the utility model is that: a shaft seal assembly of a slurry pump comprises a bearing gland, a labyrinth shaft sleeve, a framework oil seal and a protective component;

the bearing gland is detachably connected to the right end of the bracket, the labyrinth shaft sleeve is sleeved on the shaft and positioned on the inner side of the bearing gland, and the framework oil seal sleeve is arranged in an oil seal groove formed in the bearing gland close to the bearing end;

the protection component comprises a protection cover and a baffle, the protection cover is detachably connected to the right end of the bearing gland, and the baffle is sleeved on the shaft and located between the protection cover and the labyrinth shaft sleeve.

Preferably, the bearing gland is provided with a drainage cavity close to the upper end of the labyrinth shaft sleeve.

Preferably, the protection component further comprises a protection ring, the protection ring is fixedly arranged on a step arranged on the bearing gland, and the step is located at the right end of the drainage cavity.

Preferably, the labyrinth bushing upper end is insertable into the inside of the drain chamber.

Preferably, the left side and the right side of the lower end of the baffle are sleeved with first sealing rings.

Preferably, the shaft is detachably connected to the right end of the baffle, and a sealing ring II is sleeved at the right end of the detaching ring.

Compared with the prior art, the utility model discloses an advantage lies in with positive effect:

(1) The bearing gland is provided with the protective cover which can shield dust and water and prevent a large amount of dust and water from directly entering a gap between the bearing gland and the labyrinth shaft sleeve;

(2) The baffle is arranged between the labyrinth shaft sleeve and the protective cover, and is used for secondarily blocking water and dust entering from the lower end of the protective cover, so that the amount of the dust and the water entering a gap between the bearing gland and the labyrinth shaft sleeve is further reduced;

(3) The bearing gland has been seted up at the position with labyrinth axle sleeve contact and has been arranged the chamber, and it has the guard ring to arrange the welding of chamber right-hand member, and after a small amount of water and dust got into the chamber of arranging water, the guard ring can be with water and dust gathering in the drainage intracavity, and then flows along the circumferential surface who arranges the chamber, just so can avoid water and dust and axle and bearing contact, prolongs the life of axle and bearing.

Drawings

To more clearly illustrate the technical solution of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described as follows:

FIG. 1 is a schematic view of the relative position of the present invention to a shaft;

FIG. 2 is an enlarged view of the overall structure of the present invention;

fig. 3 is a schematic structural view of the protective cover of the present invention;

FIG. 4 is a schematic structural view of the bearing cover of the present invention;

fig. 5 is a schematic diagram of the relative position of the slurry pump.

Description of reference numerals:

1-bearing gland, 101-drainage cavity, 102-step, 103-oil seal groove;

2-a protective cover, 3-a baffle, 4-a protective ring, 5-a sealing ring I, 6-a framework oil seal, 7-a labyrinth shaft sleeve, 8-a shaft, 9-a bearing, 10-a sealing ring II, 11-a dismounting ring and 12-a bracket.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples.

Example 1

As shown in fig. 2, 3 and 4, the shaft seal assembly for the slurry pump comprises a bearing gland 1, a labyrinth shaft sleeve 7, a framework oil seal 6 and a protective component.

Bearing cover 1 is dismantled and is connected at the bracket 12 right-hand member, and labyrinth axle sleeve 7 suit is on axle 8 and is located bearing cover 1 inboard, and skeleton oil blanket 6 suit is in bearing cover 1 is close to the oil blanket groove 103 that the end was seted up of bearing 9.

The protection part comprises a protection cover 2 and a baffle plate 3, the protection cover 2 is detachably connected to the right end of the bearing gland 1, and the baffle plate 3 is sleeved on the shaft 8 and is located between the protection cover 2 and the labyrinth shaft sleeve 7.

As shown in fig. 2 and 4, the bearing cover 1 has a drainage cavity 101 near the upper end of the labyrinth shaft sleeve 7.

As shown in fig. 1, fig. 2 and fig. 5, the protection component further includes a protection ring 4, the protection ring 4 is fixedly arranged on a step 102 formed on the bearing gland 1, and the step 102 is located at the right end of the drainage cavity 101.

As shown in fig. 2 and 4, the upper end of the labyrinth bush 7 can be inserted into the inside of the drain chamber 101.

As shown in fig. 1 and 2, the baffle 3 is sleeved with first sealing rings 5 on the left and right sides of the lower end.

As shown in fig. 2, the baffle plate further comprises a detaching ring 11, the detaching ring 11 is detachably connected to the shaft 8 near the right end of the baffle plate 3, and a second sealing ring 10 is sleeved on the right end of the detaching ring 11.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiments into equivalent variations to apply to other fields, but all the modifications and equivalent variations that do not depart from the technical contents of the present invention are still within the scope of the present invention.

Claims

1. A shaft seal assembly of a slurry pump comprises a bearing gland (1), a labyrinth shaft sleeve (7) and a framework oil seal (6), and is characterized by also comprising a protective component;

the bearing gland (1) is detachably connected to the right end of the bracket (12), the labyrinth shaft sleeve (7) is sleeved on the shaft (8) and is positioned on the inner side of the bearing gland (1), and the framework oil seal (6) is sleeved in an oil seal groove (103) formed in the bearing gland (1) close to the end of the bearing (9);

the protection part comprises a protection cover (2) and a baffle (3), the protection cover (2) is detachably connected to the right end of the bearing gland (1), and the baffle (3) is sleeved on the shaft (8) and located between the protection cover (2) and the labyrinth shaft sleeve (7).

2. The slurry pump shaft seal assembly according to claim 1, wherein a drainage cavity (101) is formed in the bearing gland (1) near the upper end of the labyrinth shaft sleeve (7).

3. The shaft seal assembly of the slurry pump according to claim 2, wherein the protective component further comprises a protective ring (4), the protective ring (4) is fixedly arranged on a step (102) formed in the bearing gland (1), and the step (102) is located at the right end of the drainage cavity (101).

4. The slurry pump shaft seal assembly according to claim 2, wherein the labyrinth shaft sleeve (7) has an upper end insertable inside the drainage cavity (101).

5. The shaft seal assembly of the slurry pump according to claim 1, wherein the left side and the right side of the lower end of the baffle (3) are sleeved with first sealing rings (5).

6. The pump shaft sealing assembly for the slurry pump according to claim 1, further comprising a dismounting ring (11), wherein the dismounting ring (11) is detachably connected to the right end of the shaft (8) close to the baffle (3), and a second sealing ring (10) is sleeved at the right end of the dismounting ring (11).