CN218991954U

CN218991954U - Glass fiber reinforced plastic polyurethane composite type overcurrent piece

Info

Publication number: CN218991954U
Application number: CN202223541184.1U
Authority: CN
Inventors: 马腾; 王硕夫; 王建宏; 贾志芳; 梁猛亚
Original assignee: Hebei Lingqi Mechanical Equipment Co ltd
Current assignee: Hebei Lingqi Mechanical Equipment Co ltd
Priority date: 2022-12-29
Filing date: 2022-12-29
Publication date: 2023-05-09
Anticipated expiration: 2032-12-29

Abstract

The utility model discloses a glass fiber reinforced plastic polyurethane composite type overcurrent element, which comprises an impeller, wherein the impeller consists of a disc, a plurality of groups of blades and a fixed ring, a connecting mechanism is arranged between each blade and the disc, the connecting mechanism comprises two groups of fixed components and a limiting block, the fixed components comprise screw columns, nuts are connected to the outer parts of the screw columns through threads, a plurality of groups of screw holes are formed in the front surface of the disc, and one end of each screw column penetrates into the screw holes; the utility model is convenient to replace the disc or a certain blade in the impeller singly when the disc or the certain blade in the impeller is worn seriously in use by the designed connecting mechanism, thereby being beneficial to reducing the replacement cost, fully utilizing the disc or the blade in the intact part of the impeller, avoiding the condition of needing to replace the impeller integrally and saving materials.

Description

Glass fiber reinforced plastic polyurethane composite type overcurrent piece

Technical Field

The utility model belongs to the technical field of overcurrent elements, and particularly relates to a glass fiber reinforced plastic polyurethane composite overcurrent element.

Background

All components contacting with the medium conveyed by the pump can be called overflow parts, such as an impeller, a pump body and the like on the submerged slurry pump, the submerged slurry pump is of a vertical single-stage single-suction cantilever type centrifugal pump structure, the impeller is a semi-open impeller, the impeller is made of glass fiber reinforced plastic materials and polyurethane materials in a combined mode, compared with the impeller made of single materials, the impeller has the advantages of wear resistance, high hardness, elasticity and the like, the impeller performs high-speed rotation motion in the pump body of the submerged slurry pump, liquid is thrown to the outer edge from the center of the impeller under the action of centrifugal force and obtains energy, the liquid leaves the outer edge of the impeller at a high speed to enter the volute pump body, in the volute pump body, the liquid is decelerated due to gradual expansion of a runner, part of kinetic energy is converted into static pressure energy, finally, the static pressure energy flows into a discharge pipeline in the pump body at a higher pressure, and is conveyed to a required place, when the liquid flows from the center of the impeller to the outer edge, a certain vacuum is formed in the center of the impeller, and the outside is pressed into the impeller continuously due to the fact that the pressure above the liquid level of a storage tank is greater than the pressure at the inlet of the pump.

When the existing glass fiber reinforced plastic polyurethane composite type overcurrent element is used, the impeller rotates at a high speed in the pump body, when solid-liquid mixed media are conveyed, the solid in the solid-liquid mixed media can be in contact with the impeller, the surface of the impeller is partially worn after a long time, and the like, when the impeller is slightly worn, the part with the surface partially worn can be repaired, when the impeller is severely worn, the impeller needs to be integrally replaced, and when a disc or a certain blade in the impeller is severely worn, the impeller needs to be integrally replaced, so that the replacement cost is increased, the disc or the blade in the impeller is wasted, and the material part in the impeller is wasted.

Disclosure of Invention

The utility model aims to provide a glass fiber reinforced plastic polyurethane composite type overflow piece, which aims to solve the problems that in the prior art, when the existing glass fiber reinforced plastic polyurethane composite type overflow piece is used, an impeller rotates at a high speed in a pump body, when a solid-liquid mixed medium is conveyed, the solid in the solid-liquid mixed medium can be contacted with the impeller, the surface of the solid-liquid mixed medium is partially worn after a long time, and the like, when the surface of the impeller is slightly worn, the part of the surface of the impeller is partially worn, the impeller needs to be integrally replaced when the abrasion is serious, and when a disc or a certain blade in the impeller is seriously worn, the impeller needs to be integrally replaced, so that the replacement cost is increased, the disc or the blade in the impeller is wasted, and the whole material part in the impeller is wasted.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a glass steel polyurethane composite type overflows piece, includes the impeller, the impeller comprises disc, multiunit blade and solid fixed ring, the blade with all be provided with coupling mechanism between the disc, coupling mechanism includes two sets of fixed subassemblies and stopper, fixed subassembly includes the screw column, there is the nut outside the screw column through threaded connection, multiunit screw hole has been seted up in the front of disc, the one end of screw column penetrates the inside in screw hole.

Preferably, one end of the spiral hole is connected with the spiral column through screw thread screwing.

Preferably, two groups of counter bores are formed in the blade, and the other end of the spiral column extends to the inside of the counter bores.

Preferably, the nut is located inside the counterbore, and the back surface of the nut is in contact with the surface of the counterbore.

Preferably, a square groove is further formed in the blade, and a return plate is fixedly arranged on the inner wall of the square groove.

Preferably, the limiting block is fixed on the front face of the disc, and the other end of the limiting block extends to the inner portion of the circular plate.

Preferably, the outside of impeller is provided with protection machanism, protection machanism includes protection section of thick bamboo and rubber section of thick bamboo, the impeller is located the inside of rubber section of thick bamboo, just outside and the back of disc all with the inner wall contact of rubber section of thick bamboo, the rubber section of thick bamboo is fixed the inner wall of protection section of thick bamboo.

Preferably, the blades are positioned on the front surface of the disc, and the fixing ring is embedded and installed inside the disc.

Compared with the prior art, the utility model has the beneficial effects that:

(1) The utility model is convenient to replace the disc or a certain blade in the impeller singly when the disc or the certain blade in the impeller is worn seriously in use by the designed connecting mechanism, thereby being beneficial to reducing the replacement cost, fully utilizing the disc or the blade in the intact part of the impeller, avoiding the condition of needing to replace the impeller integrally and saving materials.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a schematic view of a blade structure according to the present utility model;

FIG. 3 is a schematic view of a screw column structure according to the present utility model;

FIG. 4 is a schematic view of a partial structure of a disc according to the present utility model;

FIG. 5 is a schematic left-hand cross-sectional view of the protective sleeve and rubber sleeve of the present utility model;

in the figure: 1. a disc; 2. a protective cylinder; 3. a rubber cylinder; 4. a blade; 5. a screw column; 6. a fixing ring; 7. a limiting block; 8. countersink; 9. a nut; 10. a return plate; 11. a directional groove; 12. a spiral hole.

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.

Referring to fig. 1-5, the present utility model provides a technical solution: the utility model provides a glass steel polyurethane complex type overflows piece, including the impeller, the impeller comprises disc 1, multiunit blade 4 and solid fixed ring 6, install the impeller on the epaxial fixed impeller in the pump body through solid fixed ring 6 with the impeller when using, all be provided with coupling mechanism between blade 4 and the disc 1, coupling mechanism includes two sets of fixed subassembly and stopper 7, stopper 7 is fixed on disc 1 when using, can play spacing effect when installing, fixed subassembly includes screw post 5, the outside of screw post 5 has nut 9 through threaded connection, screw nut 9 is screwed on screw post 5 when using can fix blade 4, multiunit screw hole 12 has been seted up in the front of disc 1, one end of screw post 5 can screw in screw hole 12 when using, can fix screw post 5, the inside of screw hole 12 is penetrated to one end of screw post 5, two groups of counter bores 8 are formed in the blade 4 through threaded screwing connection between one end of the spiral hole 12 and the spiral column 5, a nut 9 is conveniently screwed into the counter bore 8 through the counter bore 8 in use, the other end of the spiral column 5 extends to the inside of the counter bore 8, the nut 9 is positioned in the counter bore 8, the back surface of the nut 9 is in contact with the surface of the counter bore 8, a square groove 11 is formed in the blade 4, the end of the limiting block 7 can penetrate into the interior of the square plate 10 in use, a return plate 10 is fixedly arranged on the inner wall of the square groove 11, the limiting block 7 is fixed on the front surface of the disc 1, the other end of the limiting block 7 extends to the interior of the return plate 10, through a connecting mechanism designed, the limiting block can be replaced independently when the disc 1 or a certain blade 4 in the impeller is severely worn in use, and the replacement cost is reduced, the disc 1 or the blades 4 in the intact part of the impeller can be fully utilized, the condition that the impeller needs to be replaced integrally is avoided, and materials are saved.

In this embodiment, preferably, the outside of impeller is provided with protection machanism, protection machanism includes protection section of thick bamboo 2 and rubber section of thick bamboo 3, rubber section of thick bamboo 3 can play the effect of buffering when using, the impeller is located the inside of rubber section of thick bamboo 3, and the outside and the back of disc 1 all contact with the inner wall of rubber section of thick bamboo 3, the inside of rubber section of thick bamboo 3 can penetrate to disc 1 when using, the inner wall at protection section of thick bamboo 2 is fixed to rubber section of thick bamboo 3, through the protection machanism of design, be convenient for can protect the impeller when removing the impeller, prevent to hold the impeller and touch the condition that the foreign object caused to produce the damage of colliding with when removing, promoted the life of impeller.

In this embodiment, preferably, the blades 4 are located on the front surface of the disc 1, and the fixing ring 6 is embedded and mounted inside the disc 1.

The working principle and the using flow of the utility model are as follows:

when the disc 1 or a certain blade 4 in the impeller is worn seriously, when the disc 4 is replaced, firstly, the nut 9 on the certain blade 4 with serious wear is unscrewed, then the screw column 5 is screwed out in an outward rotation mode, at the moment, one end of the screw column 5 is separated from the screw hole 12 and the counter bore 8 in the disc 1, the blade 4 is moved in the outward direction, at the moment, the limiting block 7 is also separated from the return plate 10, at the moment, the certain blade 4 with serious wear can be removed, when the disc 1 is replaced, all the blades 4 are removed according to the same principle, then the disc 1 with serious wear can be removed for replacing a new disc 1, and finally, all the removed blades 4 are installed on the disc 1;

when the impeller is moved, the impeller is placed in the rubber cylinder 3 in the protection cylinder 2, at the moment, the outer wall of the impeller is in contact with the inner wall of the rubber cylinder 3, at the moment, the rubber cylinder 3 is extruded by the impeller to increase friction force between the impeller and the protection cylinder 2 can be fixed, at the moment, the protection cylinder 2 is held and held to move during movement, at the moment, the protection cylinder 2 can play a role in protection, and the rubber cylinder 3 can play a role in buffering, and after the impeller is moved to a proper position, the impeller can be taken down from the inside of the rubber cylinder 3.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a glass steel polyurethane composite type overflows piece, includes the impeller, the impeller comprises disc (1), multiunit blade (4) and solid fixed ring (6), its characterized in that: all be provided with coupling mechanism between blade (4) with disc (1), coupling mechanism includes two sets of fixed subassembly and stopper (7), fixed subassembly includes screw column (5), the outside of screw column (5) has nut (9) through threaded connection, multiunit spiral hole (12) have been seted up in the front of disc (1), the one end of screw column (5) penetrates the inside in spiral hole (12).

2. The glass fiber reinforced plastic polyurethane composite type overcurrent element according to claim 1, wherein: one end of the spiral hole (12) is connected with the spiral column (5) through screw thread screwing.

3. The glass fiber reinforced plastic polyurethane composite type overcurrent element according to claim 2, wherein: two groups of counter bores (8) are formed in the blade (4), and the other end of the spiral column (5) extends to the inside of the counter bores (8).

4. A glass reinforced plastic polyurethane composite type overcurrent element according to claim 3, wherein: the nut (9) is positioned in the counter bore (8), and the back surface of the nut (9) is in contact with the surface of the counter bore (8).

5. A glass reinforced plastic polyurethane composite type overcurrent element according to claim 3, wherein: square grooves (11) are formed in the blades (4), and a return plate (10) is fixedly arranged on the inner wall of each square groove (11).

6. The glass fiber reinforced plastic polyurethane composite type overcurrent element according to claim 5, wherein: the limiting block (7) is fixed on the front face of the disc (1), and the other end of the limiting block (7) extends to the inner part of the return-shaped plate (10).

7. The glass fiber reinforced plastic polyurethane composite type overcurrent element according to claim 6, wherein: the impeller is characterized in that a protection mechanism is arranged outside the impeller and comprises a protection cylinder (2) and a rubber cylinder (3), the impeller is located inside the rubber cylinder (3), the outer side and the back of the disc (1) are in contact with the inner wall of the rubber cylinder (3), and the rubber cylinder (3) is fixed on the inner wall of the protection cylinder (2).

8. The glass fiber reinforced plastic polyurethane composite type overcurrent element according to claim 7, wherein: the blades (4) are positioned on the front surface of the disc (1), and the fixing ring (6) is embedded and installed inside the disc (1).