CN211174757U

CN211174757U - Impeller fixing structure of steel lining plastic centrifugal pump

Info

Publication number: CN211174757U
Application number: CN201922283602.3U
Authority: CN
Inventors: 葛建芬; 葛俊
Original assignee: Millon Best International Mechanical Shanghai Co ltd
Current assignee: Millon Best International Mechanical Shanghai Co ltd
Priority date: 2019-12-18
Filing date: 2019-12-18
Publication date: 2020-08-04
Anticipated expiration: 2029-12-18

Abstract

The utility model discloses an impeller fixed knot of steel lining plastics centrifugal pump constructs of screw centrifugal pump technical field. Including pump case, pump cover, impeller, pump shaft and mechanical seal, be equipped with the impeller in the centrifugal pump case, the outside of centrifugal pump case is equipped with driving motor, and the pump shaft passes through the shaft coupling to be connected with driving motor, and the impeller is fixed on the pump shaft, its characterized in that: the impeller is composed of a steel framework and fluoroplastic wrapped outside the steel framework, fluoroplastic is molded outside the steel framework at one time, a long-handle fixing rod is arranged on the impeller, a fixing screw hole is formed in the long-handle fixing rod, and the impeller is fixed on the pump shaft through a fixing bolt. The utility model overcomes the defect that steel lining plastics centrifugal pump can not reverse, promoted steel lining plastics centrifugal pump's life, promoted production efficiency and security.

Description

Impeller fixing structure of steel lining plastic centrifugal pump

Technical Field

The utility model relates to a screw centrifugal pump technical field's an impeller fixed knot of steel lining plastics centrifugal pump constructs.

Background

The centrifugal pump is also called a spiral pump, is widely used in steel, petroleum, chemical industry, papermaking, environmental protection, nonferrous metals, municipal sewage treatment and mines, and is used in occasions for conveying strong corrosive fluids, the impeller and the pump shaft of the domestic steel-lined plastic centrifugal pump are usually connected by threads, so that a condition is inevitably caused, namely, the rotation direction of the pump cannot make a bit of mistake, once the impeller falls off and is damaged, the whole steel-lined plastic centrifugal pump is scrapped, the invention aims to improve the structure of the impeller, and the effect that the impeller can be reversed in a short time without being damaged is achieved.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to solve the not enough of the steel lining plastics centrifugal pump that has now that can not reverse, provide the impeller fixed knot who can use steel lining plastics centrifugal pump under various environment and construct. Thereby achieving the effect of longer service life.

The utility model adopts the following technical scheme:

the utility model provides an impeller fixed knot of steel lining plastics centrifugal pump constructs, includes pump case, pump cover, impeller, pump shaft and mechanical seal, is equipped with the impeller in the centrifugal pump case, and the outside of centrifugal pump case is equipped with driving motor, and the pump shaft passes through the shaft coupling to be connected with driving motor, and the impeller is fixed on the pump shaft, its characterized in that: the impeller consists of a steel framework and fluoroplastic which is completely wrapped outside the steel framework, fluoroplastic is molded outside the steel framework at one time, a long-handle fixing rod is arranged on the impeller, a fixing screw hole is formed in the long-handle fixing rod, and the impeller is fixed on the pump shaft through a stop bolt; the technical scheme is further explained as follows: the long-handle fixing rod is composed of 2 arc-shaped pieces which are symmetrical up and down, the arc-shaped pieces are coated on the pump shaft, and the arc-shaped pieces are fixed on the pump shaft through stop bolts; the technical scheme is further explained as follows: the impeller is made of fluoroplastic with an average thickness of more than 5mm, and the outside of the steel skeleton is molded at one time; the technical scheme is further explained as follows: the mechanical seal is arranged on the long-handle fixing rod.

The utility model has the advantages that: the utility model discloses thoroughly solved the problem that steel lining plastics centrifugal pump caused the impeller to damage because of the reversal, the impeller fixed knot of this patent constructs the impeller can not withdraw from under the circumstances of impeller short time reversal, guarantees life.

Drawings

Fig. 1 is a structure view of fixing an impeller of a steel-lined plastic centrifugal pump.

Fig. 2 is a schematic view of a centrifugal pump impeller attachment.

Fig. 3 is a view showing the structure of the impeller.

In the figure, a pump shell 1, an impeller 2, a pump cover 3, a mechanical seal 4, a bearing cover 5, a bearing frame 6, a supporting foot 7, a bearing 8, a dust cover 9, a pump shaft 10, a protective cover 11, a coupling 12, a bottom plate 13, a driving motor 14, a long-handle fixing rod 15 and a fixing screw hole 16 are arranged.

Detailed Description

The contents of the present invention will be further described with reference to the accompanying drawings:

as shown in the figure, the impeller fixing structure diagram of the steel lining plastic centrifugal pump comprises a pump shell 1, an impeller 2, a pump cover 3, a mechanical seal 4, a bearing cover 5, a bearing frame 6, a supporting foot margin 7, a bearing 8, a dust cover 9, a pump shaft 10, a protective cover 11, a coupler 12, a bottom plate 13, a driving motor 14, a long handle fixing rod 15 and a fixing screw hole 16, wherein the pump shell and the pump cover are both formed by one-time compression molding of a steel lining fluoroplastic (F46) mould, the average thickness is not less than 5mm, the impeller 2 comprises a steel framework, the outline of the framework is smaller than that of the impeller, one-time compression molding fluoroplastic (F46) is arranged outside the steel framework, the impeller is provided with long handle fixing rods, the long handle fixing rods are 2 arc-shaped pieces which are symmetrical up and down, the arc-shaped pieces are coated on the pump shaft, the long handle fixing, the impeller and the pump shaft are stably connected, so that the defect that the steel lining plastic centrifugal pump cannot reversely rotate is overcome, the service life of the steel lining plastic centrifugal pump is prolonged, and the production efficiency and the safety are greatly improved.

The above is only a specific embodiment of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent replacements or modifications made based on the present invention to solve the same technical problems and achieve the same technical effects are all covered by the protection scope of the present invention.

Claims

1. The utility model provides an impeller fixed knot of steel lining plastics centrifugal pump constructs, includes pump case, pump cover, impeller, pump shaft and mechanical seal, is equipped with the impeller in the centrifugal pump case, and the outside of centrifugal pump case is equipped with driving motor, and the pump shaft passes through the shaft coupling to be connected with driving motor, and the impeller is fixed on the pump shaft, its characterized in that: the impeller is composed of a steel framework and fluoroplastic wrapped outside the steel framework, fluoroplastic is molded outside the steel framework at one time, a long-handle fixing rod is arranged on the impeller, a fixing screw hole is formed in the long-handle fixing rod, and the impeller is fixed on the pump shaft through a fixing bolt.

2. The impeller fixing structure of the steel-lined plastic centrifugal pump according to claim 1, wherein: the long handle fixing rod is 2 arc pieces which are symmetrical up and down, the arc pieces are coated on the pump shaft, and the arc pieces are fixed on the pump shaft through the stop bolts.

3. The impeller fixing structure of the steel-lined plastic centrifugal pump according to claim 1, wherein: the impeller is made of fluoroplastic with an average thickness of more than 5mm, and the steel skeleton is coated with a protective layer.

4. The impeller fixing structure of the steel-lined plastic centrifugal pump according to claim 1, wherein: the mechanical seal is arranged on the long-handle fixing rod.