CN210593897U

CN210593897U - Sludge screw conveyer shaft head seal

Info

Publication number: CN210593897U
Application number: CN201921674710.7U
Authority: CN
Inventors: 袁厅
Original assignee: Xuzhou Shengyuan Environmental Technology Co Ltd
Current assignee: Xuzhou Shengyuan Environmental Technology Co Ltd
Priority date: 2019-10-08
Filing date: 2019-10-08
Publication date: 2020-05-22
Anticipated expiration: 2029-10-08

Abstract

The utility model provides a mud screw conveyer spindle nose is sealed belongs to the packing and seals technical field, mainly includes drive shaft and packing, packing includes gland box, interior fender ring sum gland, the drive shaft is kept away from one side outer wall of gland is equipped with one section rectangle thread groove, the surface screw thread direction of rectangle thread groove with the direction of rotation of drive shaft during operation is opposite, keep away from in the drive shaft the copper sheathing that is used for pressing from both sides tight filler is still installed to one side of gland, the inner wall clearance fit of drive shaft, copper sheathing, gland box and gland forms airtight space, and the filler is arranged in airtight space. The beneficial effects of the utility model reside in that: 1. through establishing the rectangle thread groove at the drive axle head, the mud that will get into the stuffing box of initiative is discharged, alleviates the impact of material stuffing box filler, avoids leaking. 2. A sealing ring is added in the stuffing box, and lubricating grease is injected in the stuffing box, so that the abrasion of a driving shaft to the stuffing is reduced, and the maintenance amount is reduced.

Description

Sludge screw conveyer shaft head seal

Technical Field

The utility model relates to a packing sealing technical field specifically is mud screw conveyer spindle nose is sealed.

Background

At present, biax screw conveyer is in the use, and the screw conveyer both ends often adopt packing to seal, and in the use, because the wearing and tearing of packing, the material leakage phenomenon appears very easily, and when especially the spiral connects the high-order storehouse, the material in the spiral has certain pressure, and the seepage is especially obvious, even add reverse vane at the screw axis, and the effect is still not ideal, and this needs maintainer often to go to compress tightly the filler apron, changes the filler. If the filler is not replaced in time, the sludge will leak out, causing secondary pollution.

SUMMERY OF THE UTILITY MODEL

The technique that exists is not enough to the aforesaid, the utility model aims at providing a mud auger delivery spindle nose is sealed, adopts the form that adds the rectangle screw thread in the drive shaft, and at the spiral operation in-process, the packing only needs to carry out one to the material that gets into the stuffing box and stops, and inside the material just can follow the rectangle thread groove and flow back to spiral shell, made mud not leak.

In order to solve the technical problem, the utility model adopts the following technical scheme:

mud screw conveyer spindle nose is sealed, mainly includes drive shaft and packing seal, the packing seal includes gland box, interior fender ring sum gland, the drive shaft is kept away from one side outer wall of gland is equipped with one section rectangle thread groove, the surperficial screw thread direction of rectangle thread groove with the direction of rotation of drive shaft during operation is opposite, interior fender ring cover is established and is close to the part of gland in the drive shaft, keep away from in the drive shaft the copper sheathing that is used for pressing from both sides tight filler is still installed to one side of gland, the inner wall clearance fit of drive shaft, copper sheathing, gland box and gland forms airtight space, and the filler is arranged in airtight space.

Preferably, the drive shafts at two ends of the inner baffle ring are sleeved with annular packing.

Preferably, the copper sleeve is sleeved on a part of the driving shaft provided with the rectangular thread groove.

Preferably, an oil filling nozzle is arranged on the stuffing box, and the sealing ring is sleeved on the driving shaft in the stuffing box corresponding to the position of the oil filling nozzle.

The beneficial effects of the utility model reside in that:

1. through establishing the rectangle thread groove at the drive axle head, the mud that will get into the stuffing box of initiative is discharged, alleviates the impact of material stuffing box filler, avoids leaking.

2. A sealing ring is added in the stuffing box, and lubricating grease is injected in the stuffing box, so that the abrasion of a driving shaft to the stuffing is reduced, and the maintenance amount is reduced.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural section view of a shaft head seal of a sludge screw conveyor provided by the embodiment of the utility model.

Description of reference numerals:

1-shell, 2-grab handle, 3-battery pack, 41-piston, 42-threaded sleeve rod, 43-one-way valve, 44-sampling port, 45-lead screw, 46-motor, 401-sampling cylinder, 402-electric heating wire and 403-heat insulation layer.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1, the shaft head seal of the sludge screw conveyor mainly comprises a driving shaft 1 and a packing seal, the packing seal comprises a packing box 2, an inner baffle ring 3 and a gland 4, a section of rectangular thread groove 5 is arranged on the outer wall of one side of the driving shaft 1, which is far away from the gland 4, the surface thread direction of the rectangular thread groove 5 is opposite to the rotating direction of the driving shaft 1 during working, and the inner baffle ring 3 is sleeved on the part of the driving shaft 1, which is close to the gland 4;

the copper bush 6 used for clamping the packing is further installed on one side, away from the gland 4, of the driving shaft 1, the copper bush 6 is sleeved on the portion, provided with the rectangular thread groove 5, of the driving shaft 1, the copper bush 6, the packing box 2 and the gland 4 are in clearance fit to form a closed space, the packing is arranged in the closed space, and the annular packing is sleeved on the driving shaft 1 located at the two ends of the inner blocking ring 3.

Furthermore, an oil injection nozzle 7 is arranged on the stuffing box 2, and the sealing ring 2 is sleeved on the driving shaft 1 in the stuffing box 2 at the position corresponding to the oil injection nozzle 7.

It will be apparent to those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The shaft head seal of the sludge screw conveyor is characterized by mainly comprising a driving shaft and a packing seal, wherein the packing seal comprises a packing box, an inner retaining ring and a gland, a section of rectangular thread groove is formed in the outer wall of one side, away from the gland, of the driving shaft, the surface thread direction of the rectangular thread groove is opposite to the rotating direction of the driving shaft during working, the inner retaining ring is sleeved on the part, close to the gland, of the driving shaft, a copper sleeve used for clamping packing is further installed on one side, away from the gland, of the driving shaft, the copper sleeve, the packing box and the gland, a closed space is formed by clearance fit of the inner walls of the driving shaft, the copper sleeve, the packing box and the gland.

2. The sludge screw conveyor shaft head seal as in claim 1, wherein the drive shaft at both ends of the inner retainer ring is sleeved with an annular packing.

3. The sludge screw conveyor shaft head seal as defined in claim 1, wherein the copper sleeve is sleeved on a portion of the drive shaft provided with the rectangular thread groove.

4. The sludge screw conveyor shaft head seal as defined in claim 1, wherein the stuffing box is provided with an oil nozzle, and the sealing ring is sleeved on the driving shaft at a position corresponding to the oil nozzle in the stuffing box.