Slurry pump guard plate

Abstract

The utility model discloses a slurry pump guard plate which comprises a guard plate body, an installation groove is formed in the back face of the guard plate body, an insertion hole is formed in the inner wall of the installation groove, an insertion rod is connected into the insertion hole in a sliding mode, and a wear-resistant part is fixedly connected to the side, away from the guard plate body, of the insertion rod. A mounting hole is formed in the middle of the wear-resistant part, a fastening bolt is arranged in the mounting hole, and a first screw hole is formed in the back face of the protection plate body. The wear-resistant part is inserted into the insertion hole of the guard plate body through the insertion rod, the insertion hole and the first screw hole are positioned on the same axis, so that the mounting hole and the first screw hole are quickly positioned and aligned, and the fastening bolt is mounted in the mounting hole and screwed into the first screw hole by a tool, so that the wear-resistant part can be mounted in the first screw hole. And when the slurry pump is used, the protection plate body is protected through the wear-resistant part, and therefore the wear-resistant performance of the protection plate body is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry pumps, and particularly relates to a slurry pump wear plate. Background Art

[0002] A slurry pump is a high-efficiency centrifugal pump for transporting solid-liquid mixtures. It is a machine that increases the energy of the solid-liquid mixed medium by means of the action of centrifugal force (rotation of the impeller of the pump), and is a device that converts electrical energy into the kinetic energy and potential energy of the medium. It is widely used in technical fields such as mines, power plants, dredging, metallurgy, and chemical engineering.

[0003] According to the utility model patent with the publication number CN208719013, a slurry pump wear plate has a ring-shaped boss, a wavy sealing reinforcing rib, and a ring-shaped groove arranged on the inner side of the wear plate, which greatly enhances the inner sealing performance of the wear plate. By arranging a ring-shaped reinforcing rib and a connecting reinforcing rib on the outer side of the wear plate, the structural strength of the wear plate is improved. The setting of the glue-passing hole provides a buffer for the force expansion at the inlet of the wear plate, further improving the service life. The overall design improves the sealing, protection effect, and service life of the wear plate, reduces the number of shutdown replacements, thereby improving the production quality and reducing the use cost.

[0004] Through the above-mentioned ring-shaped boss, wavy sealing reinforcing rib, and ring-shaped groove, the inner sealing performance of the wear plate is greatly enhanced. However, during the use of the wear plate, due to the abrasive and corrosive solid particles in the slurry, the wear plate is easily damaged, thus shortening the service life of the slurry pump and increasing the maintenance cost of the equipment. Content of the Utility Model

[0005] The purpose of the utility model is to provide a slurry pump wear plate to solve the problems raised in the above background art.

[0006] To achieve the above purpose, the utility model provides the following technical solution: a slurry pump wear plate, including a wear plate body. An installation groove is opened on the back surface of the wear plate body. A plug hole is opened on the inner wall of the installation groove. A plug rod is slidably connected inside the plug hole. A wear-resistant part is fixedly connected to the side of the plug rod away from the wear plate body. An installation hole is opened in the middle of the wear-resistant part. A fastening bolt is arranged inside the installation hole. A first screw hole is opened on the back surface of the wear plate body.

[0007] As a further preferred embodiment of this technical solution, the number of the plug holes is set to four, which corresponds to the number of the plug rods and the plug holes. The wear-resistant part adopts a fan-shaped structure. The fastening bolt is in threaded connection with the first screw hole. The first screw hole and the plug hole are on the same axis.

[0008] As a further preferred embodiment of the technical solution, a connecting groove is provided inside the wear-resistant part, a connecting block is fixedly connected to a side of the wear-resistant part away from the connecting groove, and a ridge block is fixedly connected to a surface of the connecting block.

[0009] As a further preferred embodiment of the present technical solution, there are two connecting grooves, the connecting block is located inside the connecting groove, and there are several convex ridge blocks, and the several convex ridge blocks adopt a triangular structure.

[0010] As a further preferred embodiment of the present technical solution, a limiting groove is provided inside the guard plate body, a limiting block is clamped inside the limiting groove, a sealing ring is fixedly connected to the side of the limiting block away from the limiting groove, and a sealing pad is provided on the back of the guard plate body.

[0011] As a further preferred embodiment of the present technical solution, the limiting groove adopts an annular structure, the sealing ring and the sealing gasket are both made of rubber material, the surface of the sealing ring is in contact with the wear-resistant part, and the sealing gasket is located between the wear-resistant part and the guard plate body.

[0012] As a further preferred embodiment of the present technical solution, a side of the guard plate body away from the wear-resistant part is fixedly connected with a cylindrical boss, a side of the guard plate body close to the cylindrical boss is fixedly connected with a mounting block, and a second screw hole is opened inside the mounting block.

[0013] The utility model provides a slurry pump guard plate, which has the following beneficial effects:

[0014] (1) The utility model inserts the wear-resistant part into the plug-in hole of the guard plate body by means of a plug-in rod. Since the plug-in hole and the first screw hole are located on the same axis, the mounting hole and the first screw hole can be quickly positioned and aligned, and the fastening bolt is installed in the mounting hole and screwed into the first screw hole by means of a tool, thereby achieving position fixation of the wear-resistant part and the guard plate body. When the slurry pump is in use, the guard plate body is protected by the wear-resistant part, thereby improving the wear resistance of the guard plate body.

[0015] (2) The utility model connects four wear-resistant parts in sequence to form an annular structure by inserting a connecting block on one side of the wear-resistant part into a connecting groove on another wear-resistant part, and at the same time, a convex block on the surface of the connecting block is clamped in a groove inside the connecting groove, and the sealing ring is installed in the limiting groove through the limiting block. The sealing ring and the sealing gasket are in contact with the wear-resistant part, thereby increasing the sealing effect of the connection and preventing leakage. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 It is a schematic diagram of the back structure of the utility model;

[0018] Figure 3 This is a schematic side sectional structure view of the present utility model;

[0019] Figure 4 This is a schematic structure view of the wear-resistant part and the sealing ring of the present utility model;

[0020] Figure 5 This is a schematic structure view of the connecting groove and the connecting block of the present utility model.

[0021] In the figure: 1. Protective plate body; 2. Installation groove; 3. Insertion hole; 4. Insertion rod; 5. Wear-resistant part; 6. Installation hole; 7. Tightening bolt; 8. First screw hole; 9. Connecting groove; 10. Connecting block; 11. Ridge block; 12. Limiting groove; 13. Limiting block; 14. Sealing ring; 15. Sealing gasket; 16. Cylindrical boss; 17. Installation block; 18. Second screw hole. Specific embodiments

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model.

[0023] The present utility model provides a technical solution: As Figure 1 and Figure 5 shown, in this embodiment, a slurry pump protective plate includes a protective plate body 1. An installation groove 2 is opened on the back surface of the protective plate body 1. Insertion holes 3 are opened on the inner wall of the installation groove 2. An insertion rod 4 is slidably connected inside the insertion holes 3. A wear-resistant part 5 is fixedly connected to the side of the insertion rod 4 away from the protective plate body 1. An installation hole 6 is opened in the middle of the wear-resistant part 5. A tightening bolt 7 is arranged inside the installation hole 6. A first screw hole 8 is opened on the back surface of the protective plate body 1.

[0024] The wear-resistant part 5 is inserted into the insertion hole 3 of the protective plate body 1 through the insertion rod 4. Since the insertion hole 3 and the first screw hole 8 are on the same axis, the installation hole 6 and the first screw hole 8 are quickly positioned and aligned, and the tightening bolt 7 is installed in the installation hole 6. It is screwed into the first screw hole 8 by using a tool, so as to fix the position of the wear-resistant part 5 and the protective plate body 1. When the slurry pump is in use, the protective plate body 1 is protected by the wear-resistant part 5, thereby improving the wear resistance of the protective plate body 1; and the wear-resistant part 5 adopts a split structure. When some areas are damaged due to friction, only this wear-resistant part 5 needs to be replaced, avoiding waste caused by overall replacement.

[0025] The number of the insertion holes 3 is set to four, and the number of the insertion rods 4 corresponds to that of the insertion holes 3. The wear-resistant part 5 adopts a fan-shaped structure. The tightening bolt 7 is threadedly connected with the first screw hole 8. The first screw hole 8 and the insertion hole 3 are on the same axis.

[0026] A connecting groove 9 is formed inside the wear-resistant part 5. A connecting block 10 is fixedly connected to one side of the wear-resistant part 5 away from the connecting groove 9, and a convex rib block 11 is fixedly connected to the surface of the connecting block 10.

[0027] By inserting the connecting block 10 on one side of the wear-resistant part 5 into the connecting groove 9 on another wear-resistant part 5, and at the same time, the convex rib block 11 on the surface of the connecting block 10 is clamped in the groove inside the connecting groove 9, four wear-resistant parts 5 are sequentially connected to form an annular structure, so as to improve the convenience of assembly and disassembly of the wear-resistant part 5.

[0028] The number of the connecting grooves 9 is two. The connecting block 10 is located inside the connecting groove 9. The number of the convex rib blocks 11 is several, and several convex rib blocks 11 adopt a triangular structure.

[0029] A limiting groove 12 is formed inside the guard plate body 1. A limiting block 13 is clamped inside the limiting groove 12. A sealing ring 14 is fixedly connected to one side of the limiting block 13 away from the limiting groove 12. A sealing backing plate 15 is arranged on the back of the guard plate body 1.

[0030] By installing the sealing ring 14 in the limiting groove 12 through the limiting block 13, after the wear-resistant part 5 is connected to the guard plate body 1, the sealing ring 14 and the sealing backing plate 15 are squeezed and are in close contact with the wear-resistant part 5 and the guard plate body 1, so as to increase the sealing effect at the connection and avoid leakage.

[0031] The limiting groove 12 adopts an annular structure. Both the sealing ring 14 and the sealing backing plate 15 are made of rubber material. The surface of the sealing ring 14 is in contact with the wear-resistant part 5, and the sealing backing plate 15 is located between the wear-resistant part 5 and the guard plate body 1.

[0032] A cylindrical boss 16 is fixedly connected to one side of the guard plate body 1 away from the wear-resistant part 5. An installation block 17 is fixedly connected to one side of the guard plate body 1 close to the cylindrical boss 16. A second screw hole 18 is formed inside the installation block 17.

[0033] The utility model provides a slurry pump guard plate, and the specific working principle is as follows:

[0034] During use, insert the connecting block 10 on one side of the wear-resistant part 5 into the connecting groove 9 on another wear-resistant part 5. At the same time, the convex rib block 11 on the surface of the connecting block 10 is clamped in the groove inside the connecting groove 9, so as to connect the four wear-resistant parts 5 in sequence to form an annular structure. Install the sealing ring 14 in the limiting groove 12 through the limiting block 13, and insert the wear-resistant part 5 into the insertion hole 3 of the guard plate body 1 through the insertion rod 4. Since the insertion hole 3 and the first screw hole 8 are on the same axis, the installation hole 6 and the first screw hole 8 are quickly positioned and aligned, and the fastening bolt 7 is installed in the installation hole 6 and screwed into the first screw hole 8 by using a tool, so as to fix the position of the wear-resistant part 5 and the guard plate body 1. At this time, the sealing ring 14 and the sealing backing plate 15 are in close contact with the wear-resistant part 5, thereby increasing the sealing effect at the joint. When the slurry pump is in use, the wear-resistant part 5 protects the guard plate body 1, thereby improving the wear resistance of the guard plate body 1.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A slurry pump wear plate, comprising a wear plate body (1), characterized in that: On the back surface of the guard plate body (1), an installation groove (2) is provided. On the inner wall of the installation groove (2), a plug hole (3) is provided. A plug rod (4) is slidably connected inside the plug hole (3). On the side of the plug rod (4) away from the guard plate body (1), a wear-resistant part (5) is fixedly connected. In the middle of the wear-resistant part (5), an installation hole (6) is provided. A fastening bolt (7) is arranged inside the installation hole (6). On the back surface of the guard plate body (1), a first screw hole (8) is provided.

2. The wear plate of a slurry pump according to claim 1, characterized in that: The number of the plug holes (3) is set to four, and the number of the plug rods (4) corresponds to that of the plug holes (3). The wear-resistant part (5) adopts a sector structure. The fastening bolt (7) is in threaded connection with the first screw hole (8). The first screw hole (8) and the plug hole (3) are on the same axis.

3. The impeller guard of a slurry pump according to claim 1, characterized in that: A connection groove (9) is provided inside the wear-resistant part (5). On the side of the wear-resistant part (5) away from the connection groove (9), a connection block (10) is fixedly connected. On the surface of the connection block (10), a convex rib block (11) is fixedly connected.

4. The wear plate of a slurry pump according to claim 3, wherein: The number of the connection grooves (9) is set to two. The connection block (10) is located inside the connection groove (9). The number of the convex rib blocks (11) is set to several. Several of the convex rib blocks (11) adopt a triangular structure.

5. The wear plate of a slurry pump according to claim 1, characterized in that: A limiting groove (12) is provided inside the guard plate body (1). A limiting block (13) is clamped inside the limiting groove (12). On the side of the limiting block (13) away from the limiting groove (12), a sealing ring (14) is fixedly connected. On the back surface of the guard plate body (1), a sealing cushion plate (15) is provided.

6. The impeller of the slurry pump according to claim 5, wherein: The limiting groove (12) adopts an annular structure. Both the sealing ring (14) and the sealing cushion plate (15) are made of rubber material. The surface of the sealing ring (14) is in contact with the wear-resistant part (5). The sealing cushion plate (15) is located between the wear-resistant part (5) and the guard plate body (1).

7. The wear plate of a slurry pump according to claim 1, characterized in that: On the side of the guard plate body (1) away from the wear-resistant part (5), a cylindrical boss (16) is fixedly connected. On the side of the guard plate body (1) close to the cylindrical boss (16), a mounting block (17) is fixedly connected. A second screw hole (18) is provided inside the mounting block (17).

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