CN218796544U

CN218796544U - Horizontal spiral shell centrifuge throws water ring mounting structure

Info

Publication number: CN218796544U
Application number: CN202223182923.2U
Authority: CN
Inventors: 陈吉
Original assignee: Chongqing Jiangbei Machinery Co ltd
Current assignee: Chongqing Jiangbei Machinery Co ltd
Priority date: 2022-11-29
Filing date: 2022-11-29
Publication date: 2023-04-07
Anticipated expiration: 2032-11-29

Abstract

The utility model relates to a spiral shell centrifuge field crouches discloses a spiral shell centrifuge that crouches throws water ring mounting structure, including the pivot, the pivot outside is equipped with baffle and water catch bowl, and clearance fit has annular fixing base and throws water ring in the pivot, and the fixing base is located the baffle inboard, and the ring of throwing water is located the water catch bowl, and the ring of throwing water can be dismantled and connect on the fixing base, and the ring of throwing water, fixing base, pivot three juncture are equipped with the tight piece that rises, and the ring of throwing water is connected the back that rises on the fixing base and is compressed tightly in the pivot. The utility model discloses can solve and get rid of among the prior art water ring and adopt the welded mode to have the unable adjustment after interfering, adopt long cover structure to warp easily and have the problem of infiltration phenomenon.

Description

Water throwing ring mounting structure of horizontal decanter centrifuge

Technical Field

The utility model relates to a spiral shell centrifuge field crouches, concretely relates to spiral shell centrifuge throws water ring mounting structure for sleeping in.

Background

In the process of operation and parking of the horizontal screw centrifuge, liquid which turns over the partition plate needs to be thrown to the inner wall of the water collecting tank by the water throwing ring device and then flows back to the inside of the machine shell after being collected, and the effect of preventing the liquid in the machine shell from turning over to the outside of the machine shell is achieved.

At present, to the spiral shell centrifuge that crouches of difference, its structure of getting rid of the water ring is different, mainly has two kinds:

1) One is to weld the slinger to the shaft. The problems of the method are that: the shaft is easy to deform during welding, and the dynamic balance precision is influenced; and when the water slinging ring interferes with the shell in the assembling process, the water slinging ring cannot axially move and cannot be adjusted, so that the operation of equipment is influenced.

2) One is to process the water slinging ring into a long sleeve type part, during assembly, the water slinging ring is sleeved on a shaft and is matched with a positioning pin hole after the position is adjusted on site, and the water slinging ring is prevented from moving axially through a pin. The problems of the method are that: the drill assembling strength is high during assembling, the assembling workload is increased, and the labor cost is high; and long cover type parts are easy to deform after being processed, are inconvenient to install, form a gap between the water throwing ring and the shaft, and have water seepage phenomenon.

SUMMERY OF THE UTILITY MODEL

The utility model provides a spiral shell centrifuge that crouches gets rid of water ring mounting structure to solve among the prior art and get rid of the water ring and adopt the welded mode to have unable adjustment after interfering, adopt long cover structure to warp easily and have the problem of infiltration phenomenon.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a spiral shell centrifuge that crouches gets rid of water ring mounting structure, includes the pivot, and the pivot outside is equipped with baffle and water catch bowl, and clearance fit has annular fixing base and gets rid of the water ring in the pivot, and the fixing base is located the baffle inboard, gets rid of the water ring and lies in the water catch bowl, gets rid of the water ring and can dismantle the connection on the fixing base, gets rid of water ring, fixing base, pivot three juncture and is equipped with the piece that rises, and the piece that will rise after the connection of getting rid of the water ring is on the fixing base compresses tightly in the pivot.

The principle and the advantages of the scheme are as follows: during the actual application, the fixing base shelters from the space of baffle inboard, reduces the liquid that crosses the baffle. The water throwing ring centrifugally throws out liquid in the water collecting tank. The water slinging ring and the fixing seat are not tightly pressed before being connected, the water slinging ring and the fixing seat can move axially relative to the rotating shaft and are adjusted to be suitable positions and then connected together, the tensioning member and the fixing seat tightly press the tensioning member on the rotating shaft, the tensioning member fixes the positions of the fixing seat and the water slinging ring and cannot move any more, and the water slinging ring is installed. According to the mounting structure, the water throwing ring is detachable, can be flexibly adjusted in the assembling process, avoids interference, and is fixedly connected after being adjusted in place. Moreover, with the structure, the water slinging ring does not need to be processed into a sleeve structure, pin holes are not needed to be processed for connection and fixation, the assembly operation is labor-saving and convenient, the water slinging ring is not easy to deform in the assembly process, and the clearance between the water slinging ring and the rotating shaft can be blocked by the compressed tensioning piece, so that water seepage is avoided.

Preferably, as an improvement, the fixing base has a plurality of screws towards one side circumference equipartition of water slinging ring, is equipped with the through-hole of a plurality of corresponding screws on the water slinging ring, will throw water ring and connect on the fixing base through connecting screw in through-hole, screw. Therefore, the connection between the water throwing ring and the fixed seat is firm, stable and convenient to operate.

Preferably, as an improvement, the fixing base has seted up the mounting groove towards the inboard circumference of the tip of water slinging ring, and the tight piece that rises is compressed tightly in the mounting groove by the water slinging ring. The mounting groove provides certain accommodation space for the tight piece that rises, reduces the influence that the tight piece that rises is fixed a position to the water slinger to ensure the fixing base and the water slinger location is accurate.

Preferably, as an improvement, the tightening member is an O-ring. The O-shaped sealing ring is a part with certain elasticity, can be deformed and tensioned better, and can be positioned firmly on the rotating shaft without water seepage after the fixing seat and the water throwing ring are connected.

Preferably, as an improvement, the volume of the O-ring is 10% larger than the spatial volume of the mounting groove. The O-shaped sealing ring can be reliably and effectively fixed on the rotating shaft after being compressed in the mounting groove, and the gap between the water throwing ring and the rotating shaft is reliably sealed, so that water seepage is avoided.

Preferably, as a modification, the sectional shape of the mounting groove is one of a triangle, a circle, or a quadrangle. Particularly, the triangular structure with the inclined wall on the fixed seat is more favorable for controlling the compression of the O-shaped sealing ring and fixing the fixed seat and the water throwing ring on the rotating shaft and sealing a gap.

Preferably, as an improvement, after the water throwing ring is connected to the fixed seat, a gap of 2-4mm is formed between the water throwing ring and the partition plate. Therefore, sufficient clearance space can be ensured between the water slinging ring and the adjacent structure, and friction is prevented from being generated between the water slinging ring and the adjacent structure when the horizontal screw centrifuge operates.

Preferably, as an improvement, the clearance between the water slinger and the partition plate is 3mm.

Drawings

Fig. 1 is a sectional view of the embodiment 1 of the present invention in an installation state on a rotating shaft.

Fig. 2 is an enlarged view at a in fig. 1.

Detailed Description

The following is further detailed by way of specific embodiments:

reference numerals in the drawings of the specification include: pivot 1, water catch bowl 2, baffle 3, fixing base 4, get rid of water ring 5, O type sealing washer 6, mounting groove 7, countersunk screw 8.

Example 1, substantially as shown in figures 1 and 2: the utility model provides a spiral shell centrifuge that crouches gets rid of water ring mounting structure, includes pivot 1, is equipped with baffle 3 and water catch bowl 2 on the spiral shell centrifuge's that crouches in the 1 outside of pivot casing, and clearance fit has annular fixing base 4 and gets rid of water ring 5 in the pivot 1, and 5 external diameters of getting rid of water ring are greater than the 4 external diameters of fixing base. The matching between the fixed seat 4 and the rotating shaft 1 adopts H8/g7 tolerance matching, so that the fixed seat 4 can easily slide, the coaxiality tolerance can be ensured, and the high-speed rotation balance is not influenced. Fixing base 4 is located baffle 3 inboardly, gets rid of water ring 5 and is located water catch bowl 2, and fixing base 4 is equipped with a plurality of screws towards one side circumference equipartition of getting rid of water ring 5, gets rid of and is equipped with a plurality of countersunk head through-holes that correspond the screw on water ring 5, will get rid of water ring 5 and connect on fixing base 4 through connecting countersunk head screw 8 in countersunk head through-hole, screw. The fixing seat 4 is circumferentially provided with a mounting groove 7 towards the inner side of the end part of the water throwing ring 5, and the section of the mounting groove 7 is triangular, wherein an inclined wall of the inclined wall is positioned on the fixing seat 4. An O-shaped sealing ring 6 is sleeved on the rotating shaft 1 between the water throwing ring 5 and the fixed seat 4 and serves as an expanding piece, and the volume of the O-shaped sealing ring 6 is 10% larger than that of the space of the mounting groove 7. The O-shaped sealing ring 6 is pressed in the mounting groove 7 after the water throwing ring 5 is connected to the fixing seat 4, and meanwhile, the O-shaped sealing ring 6 is pressed on the rotating shaft 1.

After the water slinging ring 5 is connected to the fixed seat 4, a gap of 3mm is formed between the water slinging ring 5 and the partition plate 3.

Embodiment 2, this embodiment is different from embodiment 1 only in that the gap between the water slinger 5 and the partition plate 3 is 2mm.

Example 3, this example only differs from example 1 in that the gap between the slinger 5 and the baffle 3 is 4mm.

Embodiment 4, this embodiment is different from embodiment 1 only in that the sectional shape of the mounting groove 7 is circular.

Embodiment 5, this embodiment is different from embodiment 1 only in that the sectional shape of the mounting groove 7 is a quadrangle.

The specific implementation process is as follows: the method for installing the water slinger 5 comprises the following steps,

A. preparing a fixed seat 4, an O-shaped sealing ring 6, a water throwing ring 5 and a countersunk head screw 8 which have the structures as in embodiment 1;

B. a cover with a partition plate 3 is arranged on the outer side of a rotating shaft 1 of the horizontal screw centrifuge, and the partition plate 3 surrounds the outer side of the rotating shaft 1 and forms an annular hole with the rotating shaft 1;

C. an annular fixed seat 4 is sleeved on the rotating shaft 1, the fixed seat 4 and the rotating shaft 1 are in tolerance fit by adopting H8/g7, and the outer diameter of the fixed seat 4 is smaller than the inner diameter of the partition plate 3;

D. an O-shaped sealing ring 6 and a water throwing ring 5 are sleeved on the rotating shaft 1 on one side of the fixed seat 4 close to the shaft end in sequence;

E. moving the fixed seat 4 to the annular hole, connecting the water throwing ring 5 to the fixed seat 4 by using a sunk screw 8, moving and adjusting in the process to enable the width of a gap between the water throwing ring 5 and the partition plate 3 to be 2-4mm, enabling the water throwing ring 5 to tightly press the O-shaped sealing ring 6 in the mounting groove 7 on the fixed seat 4, enabling the O-shaped sealing ring 6 to deform, and tightly fixing the fixed seat 4 and the water throwing ring 5 on the rotating shaft 1;

F. the outer side of the rotating shaft 1 is provided with a machine shell with a water collecting tank 2 structure, so that the water collecting tank 2 is covered on the outer side of the water throwing ring 5.

By the installation method and the installation structure of the water slinging ring 5, the water slinging ring 5 can move easily, conveniently and reliably in the axial direction in the assembling process. The water throwing pipe is fixed in a tensioning mode, thermal deformation of the rotating shaft 1 caused by a welding mode in the prior art is avoided, and dynamic balance of the rotating shaft 1 in the operation process can be guaranteed. The O-shaped sealing ring 6 is used as a tensioning piece, so that the water throwing ring 5 can be fixed, the gap between the water throwing ring 5 and the rotating shaft 1 can be sealed, and liquid leakage is avoided. The fixing seat 4, the water slinging ring 5, the O-shaped sealing ring 6 and the countersunk head screw 8 are high in universality, other parts except the water slinging ring 5 can be used universally, and the water slinging ring 5 can also form a series of parts by only changing the diameter and matching products of the water slinging rings 5 with different diameters, so that the production and the warehouse management are facilitated.

The above description is only an example of the present invention, and the detailed technical solutions and/or characteristics known in the solutions are not described too much here. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several modifications and improvements can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be defined by the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.

Claims

1. The utility model provides a spiral shell centrifuge that crouches gets rid of water ring mounting structure, includes the pivot, and the pivot outside is equipped with baffle and water catch bowl, its characterized in that: the pivot is gone up clearance fit and is had annular fixing base and water slinging ring, and the fixing base is located the baffle inboard, and the water slinging ring is located the water catch bowl, and the water slinging ring can be dismantled and connect on the fixing base, and water slinging ring, fixing base, pivot three juncture are equipped with the tight piece that rises, and the tight piece that will rise after the water slinging ring is connected on the fixing base compresses tightly in the pivot.

2. The installation structure of the water slinger of the decanter centrifuge of claim 1, wherein: the fixing seat is provided with a plurality of screw holes in the circumferential direction on one side facing the water throwing ring, the water throwing ring is provided with a plurality of through holes corresponding to the screw holes, and the water throwing ring is connected to the fixing seat through connecting screws in the through holes and the screw holes.

3. The mounting structure of the water slinger of the horizontal decanter centrifuge as recited in claim 2, characterized in that: the fixing seat is provided with a mounting groove in the circumferential direction towards the inner side of the end part of the water throwing ring, and the expansion piece is tightly pressed in the mounting groove by the water throwing ring.

4. The mounting structure of the water slinger of the horizontal decanter centrifuge as recited in claim 3, characterized in that: the tightening piece is an O-shaped sealing ring.

5. The installation structure of the water slinger of the decanter centrifuge of claim 4, wherein: the volume of the O-shaped sealing ring is 10% larger than the space volume of the mounting groove.

6. The installation structure of the water slinger of the decanter centrifuge of claim 5, wherein: the section of the mounting groove is in the shape of one of a triangle, a circle or a quadrangle.

7. The mounting structure of the water slinger of the horizontal decanter centrifuge as recited in claim 6, characterized in that: after the water throwing ring is connected to the fixed seat, a gap of 2-4mm is formed between the water throwing ring and the partition plate.

8. The mounting structure of the water slinger of the horizontal decanter centrifuge as recited in claim 7, characterized in that: the clearance between the water throwing ring and the partition plate is 3mm.