CN222478961U - A front cover split type alloy pump - Google Patents

Abstract

The utility model relates to the technical field of centrifugal pumps, and more specifically to a front cover split type alloy pump. It includes a front cover, a pump body, an impeller assembly, a pump cover, a sealing box, a mechanical sealing component, a bearing box, and an anti-rotation chuck. A shaft body is installed in the middle of the pump body. The shaft body is divided into a front end and a rear end of the shaft body. The impeller assembly is installed at the front end of the shaft body. An anti-rotation chuck is installed on the impeller nut. The front cover is installed on the pump body on the side close to the impeller by bolts. A bearing box is installed on the side away from the pump body by bolts. The rear end of the shaft body passes through the middle of the bearing box. A pump cover is installed between the bearing box and the pump body. A sealing box is installed on the pump cover. A mechanical sealing component is provided between the front end of the shaft body and the sealing box. The utility model adds a front cover on the basis of a traditional centrifugal pump. When the pump is damaged and repaired, it only needs to remove the front cover to disassemble the interior and repair it.

Description

Front cover plate split type alloy pump

Technical Field

The utility model relates to the technical field of centrifugal pumps, in particular to a front cover plate split alloy pump.

Background

The main function of the centrifugal pump is to suck the liquid from one place, discharge the liquid from the edge part of the impeller through the rotation acceleration of the pump body and the impeller, and form a certain pressure in the pipeline system, thereby ensuring that the liquid can flow along the pipeline to the destination. Centrifugal pumps are commonly used for conveying various liquids, such as clear water, industrial wastewater, petroleum, chemicals and the like, and have the advantages of simple structure, convenient use, high efficiency and high reliability, and are widely applied to the fields of construction, water treatment, papermaking, chemical industry, petroleum, pharmacy and the like.

The centrifugal pump comprises a shell, a motor and a pump shaft, wherein the motor and the pump shaft are arranged in the pump body, an output shaft of the motor is connected with the pump shaft, an impeller is arranged on the pump shaft, the centrifugal pump works on the principle that centrifugal force is generated by rotation of the impeller to push liquid to flow, before starting, the pump is required to be filled to ensure that the pump cavity is filled with the liquid so as to form vacuum and suck the liquid, the traditional centrifugal pump adopts an integrated structure, when the pump body is damaged, maintenance and replacement parts are relatively troublesome, the maintenance time is prolonged, and meanwhile, materials possibly pass through the impeller to abrade a sealing part, and the service life of the pump body is influenced.

Therefore, the front cover plate split type alloy pump is convenient to detach, convenient to install and high in maintenance efficiency, and is a problem to be solved by a person skilled in the art.

Disclosure of utility model

In order to overcome the defects of the prior art, the utility model aims to provide the front cover plate split type alloy pump which is simple in design and convenient to detach and overhaul.

In order to achieve the above object, the present utility model provides the following technical solution, which mainly includes:

the utility model provides a split type alloy pump of front shroud, includes front shroud, the pump body, impeller subassembly, pump cover, seal box, mechanical seal part, bearing box, prevents changeing the chuck, install the axis body in the middle of the pump body, the axis body divide into axis body front end and axis body rear end, impeller subassembly installs in axis body front end, install on the impeller nut and prevent changeing the chuck, the front shroud passes through the bolt to be installed on the pump body that is close to impeller one side, the bearing box is installed through the bolt to one side that keeps away from the pump body, the bearing box middle part is run through to axis body rear end, install the pump cover between bearing box and the pump body, install the seal box on the pump cover, be equipped with mechanical seal part between axis body front end and the seal box.

Preferably, the impeller assembly comprises an impeller, a baffle, an auxiliary impeller, an impeller nut, an anti-rotation chuck and an anti-rotation bolt, wherein the impeller is arranged at the front end of the shaft body through the impeller nut, the anti-rotation chuck is arranged on the impeller nut through the anti-rotation bolt, the baffle is arranged between the impeller and the pump cover, and the auxiliary impeller is arranged between the baffle and the pump cover.

Preferably, the mechanical sealing component comprises a mechanical sealing element, a mechanical sealing gland, a shaft sleeve, a water guide ring and a water blocking ring, the shaft sleeve is arranged between the front end of the shaft body and the sealing box, a plurality of groups of mechanical sealing elements are arranged between the shaft sleeve and the sealing box, the water guide ring is arranged between the mechanical sealing elements, the mechanical sealing gland is arranged on one side, far away from the pump cover, of the sealing box, the water blocking ring is arranged on one side, close to the mechanical sealing gland, of the front end of the shaft body, and the water blocking ring is connected with the shaft sleeve.

Preferably, the bearing box comprises a front bearing gland, a front bearing, a rear bearing gland and a framework oil seal, wherein the front bearing gland is installed inside the bearing box through bolts, the framework oil seal is arranged between the front bearing gland and the rear end of the shaft body, the front bearing is installed on one side, close to the front bearing gland, of the rear end of the shaft body, the rear bearing gland is installed on one side, far away from the pump body, of the bearing box through bolts, the framework oil seal is arranged between the rear bearing gland and the rear end of the shaft body, and a plurality of groups of rear bearings are installed on one side, close to the rear bearing gland, of the rear end of the shaft body.

Compared with the prior art, the split type centrifugal pump has the advantages that the split type centrifugal pump is adopted, the front cover plate is added on the basis of a traditional centrifugal pump, the pump is damaged and maintained, the inside of the pump can be disassembled and maintained only by disassembling the front cover plate, the front cover plate is convenient to install, the partition plate and the auxiliary impeller are added between the inside of the pump cavity and the sealing cavity, the abrasion of materials to the sealing assembly is reduced, the rotation preventing nut is added at the impeller of the pump, the probability of damaging the pump due to the reverse rotation of the pump is reduced, and the service life of the pump body is prolonged.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of the present utility model.

Fig. 2 is a schematic structural view of the mechanical seal member of the present utility model.

The reference numerals indicate that the device comprises a 1-front cover plate, a 2-pump body, a 3-impeller, a 4-baffle plate, a 5-pump cover, a 6-auxiliary impeller, a 7-sealing box, an 8-water guide ring, a 9-mechanical sealing element, a 10-mechanical sealing cover, an 11-shaft sleeve, a 12-front bearing cover, a 13-front bearing, a 14-shaft body, a 1401-shaft body front end, a 1402-shaft body rear end, a 15-bearing box, a 16-rear bearing, a 17-rear bearing cover, a 18-impeller nut, a 19-rotation preventing chuck, a 20-rotation preventing bolt, a 21-water blocking ring and a 22-framework oil seal.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Examples

The utility model provides a split type alloy pump of front shroud, as shown in fig. 1 through 2, including front shroud 1, pump body 2, impeller 3 subassembly, pump cover 5, seal box 7, mechanical seal part, bearing box 15, anti-rotation chuck 19, install shaft body 14 in the middle of the pump body 2, shaft body 14 divide into shaft body front end 1401 and shaft body rear end 1402, impeller 3 subassembly is installed in shaft body front end 1401, install anti-rotation chuck 19 on the impeller nut 18, front shroud 1 passes through the bolt to be installed on the pump body 2 near impeller 3 one side, one side that keeps away from pump body 2 passes through the bolt and installs bearing box 15, shaft body rear end 1402 runs through bearing box 15 middle part, install pump cover 5 between bearing box 15 and the pump body 2, install seal box 7 on the pump cover 5, be equipped with mechanical seal part between shaft body front end 1401 and the seal box 7.

In order to further optimize the scheme, the impeller 3 assembly comprises an impeller 3, a baffle 4, a secondary impeller 6, an impeller nut 18, an anti-rotation chuck 19 and an anti-rotation bolt 20, wherein the impeller 3 is arranged at the front end 1401 of the shaft body through the impeller nut 18, the anti-rotation chuck 19 is arranged on the impeller nut 18 through the anti-rotation bolt 20, the baffle 4 is arranged between the impeller 3 and the pump cover 5, and the secondary impeller 6 is arranged between the baffle 4 and the pump cover 5.

In order to further optimize the scheme, the mechanical seal part comprises a mechanical seal 9, a mechanical seal gland 10, a shaft sleeve 11, a water guide ring 8 and a water blocking ring 21, wherein the shaft sleeve 11 is arranged between the front end 1401 of the shaft body and the seal box 7, a plurality of groups of mechanical seal 9 are arranged between the shaft sleeve 11 and the seal box 7, the water guide ring 8 is arranged between the mechanical seal 9, the mechanical seal gland 10 is arranged on one side, far away from the pump cover 5, of the seal box 7, the water blocking ring 21 is arranged on one side, close to the mechanical seal gland 10, of the front end 1401 of the shaft body, and the water blocking ring 21 is connected with the shaft sleeve 11.

In order to further optimize the scheme, the bearing housing 15 includes preceding bearing gland 12, preceding bearing 13, back bearing 16, back bearing gland 17 and skeleton oil blanket 22, the inside preceding bearing gland 12 of installing through the bolt of bearing housing 15, be equipped with skeleton oil blanket 22 between preceding bearing gland 12 and the axis body rear end 1402, the front bearing 13 is installed to the axis body rear end 1402 near preceding bearing gland 12 one side, the bearing housing 15 is kept away from pump body 2 one side and is installed back bearing gland 17 through the bolt, be equipped with skeleton oil blanket 22 between back bearing gland 17 and the axis body rear end 1402, the multiunit back bearing 16 is installed to the axis body rear end 1402 near back bearing gland 17 one side.

The application adopts a split structure, and on the basis of the traditional centrifugal pump, the front cover plate 1 is added, the pump body 2 is damaged and maintained, the inside can be disassembled and maintained only by disassembling the front cover plate 1, and the maintenance efficiency of the centrifugal pump is improved.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (4)

1. The utility model provides a split type alloy pump of front shroud, its characterized in that, including front shroud, the pump body, impeller subassembly, pump cover, seal box, mechanical seal part, bearing box, anti-rotation chuck, install the axis body in the middle of the pump body, the axis body divide into axis body front end and axis body rear end, impeller subassembly installs in axis body front end, the front shroud passes through the bolt mounting on the pump body that is close to impeller one side, axis body rear end externally mounted has the bearing box, the bearing box rear end runs through the bearing box middle part, install the pump cover between bearing box and the pump body, install the seal box on the pump cover, be equipped with mechanical seal part between axis body front end and the seal box.

2. The front cover plate split alloy pump of claim 1, wherein the impeller assembly comprises an impeller, a partition plate, an auxiliary impeller, an impeller nut, an anti-rotation chuck and an anti-rotation screw bolt, the impeller is arranged at the front end of the shaft body through the impeller nut, the anti-rotation chuck is arranged on the impeller nut through the anti-rotation screw bolt, the partition plate is arranged between the impeller and the pump cover, and the auxiliary impeller is arranged between the partition plate and the pump cover.

3. The front cover plate split alloy pump according to claim 1, wherein the mechanical sealing component comprises a mechanical sealing element, a mechanical sealing gland, a shaft sleeve, a water guide ring and a water blocking ring, the shaft sleeve is arranged between the front end of the shaft body and the sealing box, a plurality of groups of mechanical sealing elements are arranged between the shaft sleeve and the sealing box, the water guide ring is arranged between the mechanical sealing elements, the mechanical sealing gland is arranged on one side of the sealing box far away from the pump cover, the water blocking ring is arranged on one side of the front end of the shaft body close to the mechanical sealing gland, and the water blocking ring is connected with the shaft sleeve.

4. The front cover plate split alloy pump according to claim 1, wherein the bearing box comprises a front bearing gland, a front bearing, a rear bearing gland and a framework oil seal, the front bearing gland is mounted inside the bearing box through bolts, the framework oil seal is arranged between the front bearing gland and the rear end of the shaft body, the front bearing is mounted on one side, close to the front bearing gland, of the rear end of the shaft body, the rear bearing gland is mounted on one side, far away from the pump body, of the bearing box through bolts, the framework oil seal is arranged between the rear bearing gland and the rear end of the shaft body, and multiple groups of rear bearings are mounted on one side, close to the rear bearing gland, of the rear end of the shaft body.