CN215979934U

CN215979934U - Improved front guard plate structure of slurry pump

Info

Publication number: CN215979934U
Application number: CN202121907852.0U
Authority: CN
Inventors: 崔萌; 黄成成; 崔计平
Original assignee: Hebei Jiaolong Pump Industry Co ltd
Current assignee: Hebei Jiaolong Pump Industry Co ltd
Priority date: 2021-08-16
Filing date: 2021-08-16
Publication date: 2022-03-08
Anticipated expiration: 2031-08-16

Abstract

The utility model belongs to the technical field of slurry pumps, and particularly relates to an improved front guard plate structure of a slurry pump, which comprises a front guard plate body, wherein a first wear-resistant part and a second wear-resistant part are arranged on one side, close to an impeller, of the front guard plate body, the first wear-resistant part is positioned at the rim position of the impeller, the second wear-resistant part is positioned at the root position of the impeller, a sheath is arranged at one end, far away from the root of the impeller, of the front guard plate body, a pump cover is arranged on the outer sides of the sheath and the front guard plate body, a first through hole and a second through hole are formed in the front guard plate body, the first through hole is connected with a water inlet pipe, the second through hole is connected with a water outlet pipe, and the water inlet pipe and the water outlet pipe penetrate through the pump cover, so that the problem of front guard plate wear in the use process of the slurry pump is solved.

Description

Improved front guard plate structure of slurry pump

Technical Field

The utility model belongs to the technical field of slurry pumps, and particularly relates to an improved front guard plate structure of a slurry pump.

Background

The slurry pump is a machine which increases the energy of a solid-liquid mixed medium by the action of centrifugal force (rotation of an impeller of the pump), and converts electric energy into kinetic energy and potential energy of the medium. The method is mainly suitable for the following steps: the fields of mine, power plant, dredging, metallurgy, chemical industry, building materials, petroleum and other industries.

The main structure of the slurry pump comprises a pump shell, a front guard plate, a rear guard plate and an impeller, wherein the front guard plate and the rear guard plate are respectively arranged at two sides of the pump shell, and the impeller is positioned in the pump shell; when in work, liquid enters the pump shell through the front guard plate, then the impeller rotates and enables the liquid to have kinetic energy, and then the part of liquid is thrown out of the pump shell, so that the function of moving the liquid is achieved; due to the harsh operating environment of slurry pumps, i.e., the presence of large numbers of particles in the liquid, these structures, including the impeller and the front shroud, are susceptible to erosion.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an improved front guard plate structure of a slurry pump, which aims to solve the problems and achieve the aim of reducing the abrasion of particles on the front guard plate.

In order to achieve the purpose, the utility model provides the following scheme: the utility model provides a modified backplate structure of sediment stuff pump, includes the backplate body, one side that the backplate body is close to the impeller is provided with first wearing parts and second wearing parts, first wearing parts is located the rim position of impeller, the second wearing parts is located the root position of impeller, the backplate body is kept away from the one end of impeller root is provided with the sheath, the backplate body outside are provided with the pump cover, first through-hole and second through-hole have been seted up on the backplate body, first through-hole is connected with the inlet tube, the second through-hole is connected with the drain pipe, inlet tube, drain pipe pass the pump cover.

Preferably, the front guard plate body is fixedly connected with the sheath, and the front guard plate body is abutted to the pump cover.

Preferably, the front guard plate body is fixedly connected with the first wear-resistant part and the second wear-resistant part, and one sides of the first wear-resistant part and the second wear-resistant part, which are far away from the front guard plate body, are abutted to the impeller.

Preferably, the first through hole is located at one end, close to the sheath, of the front guard plate body, the top end of the first through hole is flush with the rim of the impeller, the second through hole is located at one end, close to the root of the impeller, of the front guard plate body, and the bottom end of the second through hole is flush with the outer contour of the root of the impeller.

Preferably, the pump cover is provided with a third through hole and a fourth through hole, one end of the first through hole, which is far away from the impeller, is fixedly connected with the water inlet pipe, the water inlet pipe penetrates through the third through hole and extends out to the outside, one end of the second through hole, which is far away from the impeller, is fixedly connected with the drain pipe, and the drain pipe penetrates through the fourth through hole and extends out to the outside.

Preferably, the diameter of the third through hole is larger than that of the first through hole, the water inlet pipe is matched with that of the first through hole, the diameter of the fourth through hole is larger than that of the second through hole, and the water outlet pipe is matched with that of the second through hole.

Preferably, the first wear-resistant part and the second wear-resistant part are made of ceramics.

The utility model has the following technical effects:

according to the utility model, the wear-resistant part is arranged at the position of the front guard plate close to the edge of the impeller, and the wear-resistant part is also abutted against the rim of the impeller, so that particles in a medium conveyed by the slurry pump are effectively prevented from entering a gap formed by the front guard plate and the impeller to cause wear to the front guard plate and the impeller, and the through hole formed in the front guard plate can enable outside clean water to be injected into the gap formed by the impeller and the front guard plate and can also enable liquid in the gap to be discharged to the outside, thereby reducing the wear to the impeller and the front guard plate.

Drawings

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

FIG. 1 is a schematic view of a conventional front fender structure;

FIG. 2 is a schematic view of the front guard structure of the present invention;

fig. 3 is a partially enlarged view of a in fig. 2.

Wherein, 1, a sheath; 2. an impeller; 4. a front guard plate body; 5. a pump cover; 6. a water inlet pipe; 7. a drain pipe; 8. a first wear part; 9. a second wear part; 41. a first through hole; 42. a second through hole; 51. a third through hole; 52. and a fourth via.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.

Referring to fig. 1-3, an improved front guard plate structure of a slurry pump comprises a front guard plate body 4, a first wear-resistant part 8 and a second wear-resistant part 9 are arranged on one side of the front guard plate body 4 close to an impeller 2, the first wear-resistant part 8 is arranged at the rim position of the impeller 2, the second wear-resistant part 9 is arranged at the root position of the impeller 2, a sheath 1 is arranged at one end of the front guard plate body 4 far away from the root of the impeller 2, a pump cover 5 is arranged on the outer sides of the sheath 1 and the front guard plate body 4, a first through hole 41 and a second through hole 42 are arranged on the front guard plate body 4, the first through hole 41 is connected with a water inlet pipe 6, the second through hole 42 is connected with a water outlet pipe 7, the water inlet pipe 6 and the water outlet pipe 7 penetrate through the pump cover 5, a boss structure is arranged on one side of the front guard plate body 4 close to the impeller 2, the front guard plate body 4 is fixedly connected with the sheath 1 through bolts, so as to prevent the medium transported by the slurry pump cover 5 from being worn on the inner side, the equal first wearing parts 8 of fixedly connected with in position of preceding backplate body 4 and the contact of impeller 2 and second wearing parts 9, can prevent that the granule in the medium from entering into the clearance of preceding backplate body 4 and impeller 2 formation and causing wearing and tearing to preceding backplate body 4, two through-holes of seting up on the preceding backplate body 4, can make external clear water get into, discharge, thereby form constantly flowing rivers in the clearance, it is external at any time to discharge the pump with the very tiny granule that will enter into in the clearance, it causes the probability of wearing and tearing to preceding backplate body 4 to reduce the granule, and simultaneously, the work heat in some pumps can also be taken away to mobile rivers, make the pump body operation more stable.

Further optimization scheme, preceding

backplate body

4 and 1 fixed connection of sheath, preceding backplate body 4 and pump cover 5 butt prevent that the granule in the medium from entering into the space that preceding backplate body 4 and pump cover 5 formed, cause wearing and tearing to 5 medial surfaces of pump cover.

Further optimize the scheme, preceding backplate body 4 and first wearing parts 8, the 9 fixed connection of second wearing parts, one side and the impeller 2 butt of preceding backplate body 4 are kept away from to first wearing parts 8, the 9 second wearing parts, and the wearing parts prevents that impeller 2 from rotating and causing wearing and tearing to preceding backplate body 4, simultaneously, also can prevent that the granule from entering into preceding backplate body 4 and impeller 2 form in the clearance.

Further optimize the scheme, first through-hole 41 is located the one end that the apron body 4 is close to sheath 1, the top of first through-hole 41 flushes with the rim of impeller 2, second through-hole 42 is located the one end that apron body 4 is close to the root of impeller 2, the bottom of second through-hole 42 flushes with the outline at the root of impeller 2, when making external clear water enter into the clearance that apron body 4 and impeller 2 formed through inlet tube 6, can be used in the contact surface at first wearing parts 8 and impeller 2 edge, reduce the speed that tiny granule in the medium entered into the clearance, the mixed liquid after the washing is outside 7 discharge pumps of drain pipe, the bottom of drain pipe 7 and the top at the root of impeller are on same horizontal plane, can make the whole discharge pumps of mixed liquid after the washing and can not have the granule to remain and cause the wearing and tearing to the apron body in the clearance.

Further optimize the scheme, third through hole 51 and fourth through hole 52 have been seted up to pump cover 5, impeller 2's one end and inlet tube 6 fixed connection are kept away from to first through hole 41, inlet tube 6 passes third through hole 51 and stretches out the external world, impeller 2's one end and drain pipe 7 fixed connection are kept away from to second through hole 42, drain pipe 7 passes fourth through hole 52 and stretches out the external world, make things convenient for inlet tube 6 and drain pipe 7 to insert and fixed connection on the through-hole that backplate body 4 was seted up in the front from the through-hole of pump cover, inlet tube 6 is to the interior water injection of clearance, drain pipe 7 is with the liquid discharge clearance after mixing, form mobile rivers in making the clearance, when reducing the granule and causing wearing and tearing to backplate body 4, can also take away some heat, the life of extension pump.

Further optimize the scheme, the diameter of third through-hole 51 is greater than the diameter of first through-hole 41, the diameter phase-match of inlet tube 6 and first through-hole 41, the diameter of fourth through-hole 52 is greater than the diameter of second through-hole 42, the diameter phase-match of drain pipe 7 and second through-hole 42, the through-hole size on the pump cover 5 is greater than the through-hole size on the apron body 4, make things convenient for through-hole fixed connection on inlet tube 6 and the drain pipe 7 pass through the pump cover 5 and the apron body 4.

Further optimization scheme, the material of first wearing parts 8, second wearing parts 9 is pottery, and pottery has fabulous wearability, prolongs the life of front fender body 4.

The working process of the embodiment is as follows:

connect the apron body 4 and sheath 1 together and fix with the bolt, apron body 4 fixedly connected with first wearing part 8 and one side of second wearing part 9 contact with impeller 2, apron body 4 keeps away from one side of impeller 2 and pump cover 5 contact, the top of the first through-hole 41 of apron body 4 flushes with the contact surface at first wearing part 8 and impeller 2 edge, and the axis of first through-hole 41 and the axis coincidence of third through-hole 51, inlet tube 6 passes third through-hole 51 and first through-hole 41 fixed connection, the bottom of the second through-hole 42 of apron body 4 flushes with the outline at impeller 2 root, and the axis of second through-hole 42 and the axis coincidence of fourth through-hole 52, drain pipe 7 passes fourth through-hole 52 and second through-hole 42 fixed connection. In-process of sediment stuff pump transportation medium, first wearing parts 8 prevent that impeller 2 from causing wearing and tearing to front guard plate body 4, and simultaneously, prevent that the granule in the medium from entering into the clearance that impeller 2 and front guard plate body 4 formed and cause wearing and tearing to front guard plate body 4, external clear water enters into the clearance that impeller 2 and front guard plate body 4 formed through inlet tube 6 and first through-hole 41, can play the speed that slows down the medium granule and enter into in the clearance, can pass through drain pipe 7 with the granule that has got into in the clearance simultaneously and discharge to the external world, can also play the effect of cooling to the pump body, the life of extension pump.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above-described embodiments are merely illustrative of the preferred embodiments of the present invention, and do not limit the scope of the present invention, and various modifications and improvements of the technical solutions of the present invention can be made by those skilled in the art without departing from the spirit of the present invention, and the technical solutions of the present invention are within the scope of the present invention defined by the claims.

Claims

1. The utility model provides a front guard plate structure of modified sediment stuff pump which characterized in that: the impeller protection structure comprises a front protection plate body (4), wherein a first wear-resistant part (8) and a second wear-resistant part (9) are arranged on one side, close to an impeller (2), of the front protection plate body (4), the first wear-resistant part (8) is located on the rim of the impeller (2), the second wear-resistant part (9) is located on the root of the impeller (2), the front protection plate body (4) is far away from one end of the root of the impeller (2) and is provided with a sheath (1), a pump cover (5) is arranged on the outer sides of the sheath (1) and the front protection plate body (4), a first through hole (41) and a second through hole (42) are formed in the front protection plate body (4), the first through hole (41) is connected with a water inlet pipe (6), the second through hole (42) is connected with a water drainage pipe (7), and the water inlet pipe (6) and the water drainage pipe (7) penetrate through the pump cover (5).

2. The improved front guard structure of slurry pumps as recited in claim 1, wherein: the front protection plate body (4) is fixedly connected with the sheath (1), and the front protection plate body (4) is abutted to the pump cover (5).

3. The improved front guard structure of slurry pumps as recited in claim 1, wherein: the front guard plate body (4) is fixedly connected with the first wear-resistant part (8) and the second wear-resistant part (9), and one side, far away from the front guard plate body (4), of the first wear-resistant part (8) and the second wear-resistant part (9) is abutted to the impeller (2).

4. The improved front guard structure of slurry pumps as recited in claim 1, wherein: the first through hole (41) is located at one end, close to the sheath (1), of the front guard plate body (4), the top end of the first through hole (41) is flush with the rim of the impeller (2), the second through hole (42) is located at one end, close to the root of the impeller (2), of the front guard plate body (4), and the bottom end of the second through hole (42) is flush with the outer contour of the root of the impeller (2).

5. The improved front guard structure of slurry pumps as recited in claim 1, wherein: third through-hole (51) and fourth through-hole (52) have been seted up to pump cover (5), first through-hole (41) are kept away from the one end of impeller (2) with inlet tube (6) fixed connection, inlet tube (6) pass third through-hole (51) stretch out to the external world, second through-hole (42) are kept away from the one end of impeller (2) with drain pipe (7) fixed connection, drain pipe (7) pass fourth through-hole (52) stretch out to the external world.

6. An improved front guard structure of slurry pumps as set forth in claim 5, wherein: the diameter of third through-hole (51) is greater than the diameter of first through-hole (41), inlet tube (6) with the diameter phase-match of first through-hole (41), the diameter of fourth through-hole (52) is greater than the diameter of second through-hole (42), drain pipe (7) with the diameter phase-match of second through-hole (42).

7. The improved front guard structure of slurry pumps as recited in claim 1, wherein: the first wear-resistant part (8) and the second wear-resistant part (9) are made of ceramic.