Front guard plate positioning device of double-shell slurry pump

Abstract

The utility model discloses a positioning device for a front protective plate of a double-shell slurry pump, and relates to the technical field of slurry pumps. The bracket top cover is arranged on the upper side of the left end of the shaft rod, a shaft seal component is arranged on the outer side of the right end of the shaft rod, a slurry pump body is arranged on the outer side of the shaft seal component, a rear protection plate is arranged on the inner side of the right end of the slurry pump body, and a front protection plate component is arranged on the inner side of the left end of the pump cover; sheaths are arranged on the outer sides of the rear protection plate and the front protection plate component, a positioning wedge is arranged at the joint of the front protection plate component and the pump cover, and an impeller located on the inner sides of the slurry pump body and the pump cover is arranged at the right end of the shaft rod; the technical problems that after a slurry pump operates for a period of time, part of slurry thrown out by an impeller flows back to a gap between the impeller and a protection plate, so that a front protection plate is abraded, and meanwhile, a large amount of dirt is left in the slurry pump due to long-time use, and the slurry pump is difficult to detach and clean are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of slurry pumps, in particular to a front guard plate positioning device for a double-casing slurry pump. Background Art

[0002] Slurry pump is essentially a centrifugal pump. It is a machine that increases the energy of solid-liquid mixed medium by the action of centrifugal force. It is a device that converts electrical energy into kinetic energy and potential energy of the medium. It is widely used in mining, power plants, metallurgy, chemical industry and other industries.

[0003] In the Chinese authorization announcement number CN214221513U, a slurry pump with a slurry drainage function is disclosed, including a pump body and an impeller, a suction cover is installed on the bottom side of the pump body, and a liquid outlet elbow is fixed on the side of the pump body, a connecting block is installed on the upper end of the liquid outlet elbow, and a liquid outlet pipe is connected to the middle position of the connecting block, and a liquid outlet is installed at the end of the liquid outlet pipe, a connecting pipe is provided on the end side of the pump body, and a support seat is fixed at the upper end position of the connecting pipe, a coupling is installed on the circumferential side of the spring, and a bearing seat is fixed on the end side of the coupling, and a support plate is installed on the upper end of the bearing seat, a motor is connected to the upper end position of the support plate, and a switch button is installed on the upper end of the motor, which solves the problems of slurry blockage and low efficiency in the pump.

[0004] Compared with the above-mentioned slurry pump, the following defects still exist: after the slurry pump has been running for a period of time, part of the slurry thrown out by the impeller flows back into the gap between the impeller and the guard plate, causing wear of the front guard plate. At the same time, long-term use causes a large amount of dirt to remain in the slurry pump, making it difficult to disassemble and clean. Utility Model Content

[0005] The purpose of the utility model is to provide a front guard plate positioning device for a double-casing slurry pump to solve the following technical problems: after the slurry pump has been running for a period of time, part of the slurry thrown out by the impeller flows back into the gap between the impeller and the guard plate, causing wear of the front guard plate; at the same time, long-term use causes a large amount of dirt to remain in the slurry pump, making it difficult to disassemble and clean.

[0006] The purpose of the utility model can be achieved through the following technical solutions:

[0007] A double casing slurry pump front guard plate positioning device, shaft;

[0008] A bracket top cover is provided on the upper side of the left end of the shaft rod, a shaft seal component is provided on the outer side of the right end of the shaft rod, a slurry pump body is provided on the outer side of the shaft seal component, a rear guard plate is provided on the inner side of the right end of the slurry pump body, a pump cover is provided on the right side of the slurry pump body, a front guard plate component is provided on the inner side of the left end of the pump cover, sleeves are provided on the outer sides of the rear guard plate and the front guard plate component, a positioning wedge is provided at the connection between the front guard plate component and the pump cover, and an impeller is provided on the right end of the shaft rod and located on the inner sides of the slurry pump body and the pump cover;

[0009] A first connecting piece is provided at the connection between the lower ends of the slurry pump body and the pump cover, a bracket bottom support is provided below the left end of the shaft, and a second connecting piece is provided at the connection between the bracket bottom support and the slurry pump body.

[0010] As a further solution of the present invention: a detachable feed port is provided at the right end of the pump cover, and a detachable discharge port is provided at the upper side of the rear end of the connection between the pump cover and the slurry pump body.

[0011] As a further solution of the present invention: a square groove is provided in the middle of the right end of the pump cover, and the pump cover and the front guard plate component are connected to the positioning wedge in a snap-fit ​​manner.

[0012] As a further solution of the present invention: a shaft seal inner support frame connected to the shaft seal component is provided on the inner side of the slurry pump body, and the shaft seal component and the shaft seal inner support frame are connected in a sleeve connection manner.

[0013] As a further solution of the present invention: the first connecting member is composed of a connecting rod, an adjusting rod, a first adjusting nut and a second adjusting nut;

[0014] Adjustment rods are provided at both left and right ends of the connecting rod, and a first adjustment nut and a second adjustment nut are respectively provided on the outer sides of the adjustment rods.

[0015] As a further solution of the present invention: the connecting rod passes through the slurry pump body and the pump cover in sequence, and the first adjusting nut and the second adjusting nut are both connected to the adjusting rod in a threaded manner.

[0016] As a further solution of the present invention: a first limiting ring plate connected to the shaft is provided on the lower side of the left end of the bracket top cover, and a second limiting ring plate connected to the shaft is provided on the lower side of the right end of the bracket top cover.

[0017] As a further solution of the present invention: the first limiting ring plate and the second limiting ring plate are both nested with the shaft rod, and the first limiting ring plate and the second limiting ring plate are respectively connected to the bracket top cover and the bracket bottom support through bolts.

[0018] Beneficial effects of the utility model:

[0019] 1. By milling a square groove in the pump cover and driving three positioning wedges in the gap between the front guard plate and the pump cover, the position of the front guard plate is ensured to avoid the problem of the slurry pump conveying large particles of mining slurry hitting the front guard plate and causing tilting, thereby causing wear of the jacket and the front guard plate, thereby protecting the life of the front guard plate and the jacket;

[0020] 2. A first connecting piece is provided at the connection between the lower end of the slurry pump body and the pump cover, and a second connecting piece is provided at the connection between the slurry pump body and the bracket bottom support, which not only enables the devices to be assembled and fastened together, but also facilitates later disassembly and internal cleaning. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The present invention will be further described below with reference to the accompanying drawings.

[0022] Figure 1 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0023] Figure 2 This is a schematic diagram of the overall structure of the first connecting piece of the utility model;

[0024] Figure 3 This is a front view structural diagram of the connection between the slurry pump body and the pump cover of the utility model;

[0025] Figure 4 It is a front view structural schematic diagram of the positioning wedge of the utility model.

[0026] In the figure: 1. shaft; 2. bracket top cover; 3. shaft seal component; 4. slurry pump body; 5. rear guard plate; 6. sleeve; 7. pump cover; 8. front guard plate component; 9. impeller; 10. positioning wedge; 11. feed port; 12. discharge port; 13. shaft seal inner support frame; 14. first connecting piece; 1401. connecting rod; 1402. adjusting rod; 1403. first adjusting nut; 1404. second adjusting nut; 15. second connecting piece; 16. first limiting ring plate; 17. second limiting ring plate; 18. bracket bottom support. DETAILED DESCRIPTION

[0027] The following will be combined with the accompanying drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0028] Example 1

[0029] See also Figure 1 、 Figure 3 and Figure 4 As shown, the utility model is a double-shell slurry pump front guard plate positioning device, which can specifically fix the position of the front guard plate component 8 by driving three positioning wedges 10 to prevent large particles of slurry from entering the gap between the pump cover 7 and the front guard plate component 8, including a shaft rod 1; a bracket top cover 2 is arranged on the upper side of the left end of the shaft rod 1, a shaft seal component 3 is arranged on the outside of the right end of the shaft rod 1, a slurry pump body 4 is arranged on the outside of the shaft seal component 3, a rear guard plate 5 is arranged on the inside of the right end of the slurry pump body 4, a pump cover 7 is arranged on the right side of the slurry pump body 4, a front guard plate component 8 is arranged on the inside of the left end of the pump cover 7, and a sleeve 6 is provided on the outside of the rear guard plate 5 and the front guard plate component 8, a positioning wedge 10 is provided at the connection between the front guard plate component 8 and the pump cover 7, and an impeller 9 is provided on the right end of the shaft rod 1, which is located on the inside of the slurry pump body 4 and the pump cover 7.

[0030] In this embodiment, preferably, a detachable feed port 11 is provided at the right end of the pump cover 7, and a detachable discharge port 12 is provided on the upper side of the rear end of the connection between the pump cover 7 and the slurry pump body 4; a square groove is provided in the middle of the right end of the pump cover 7, and the pump cover 7 and the front guard plate component 8 are connected to the positioning wedge 10 by a snap-fit ​​manner; a shaft seal inner support frame 13 connected to the shaft seal component 3 is provided on the inner side of the slurry pump body 4, and the shaft seal component 3 and the shaft seal inner support frame 13 are connected by a sleeve connection, which can drive the impeller 9 to rotate synchronously when the shaft rod 1 rotates, so that the solid and liquid slurry enter from the feed port 11 and are discharged from the discharge port 12 under the action of centrifugal force.

[0031] In summary, the feed port 11 is installed on the right end of the pump cover 7 by bolts, and the discharge port 12 is installed on the upper side of the rear end of the connection between the slurry pump body 4 and the pump cover 7. Since a square groove is milled inside the pump cover 7, when three positioning wedges 10 are driven into the gap between the pump cover 7 and the front guard plate component 8, the position of the front guard plate component 8 can be fixed. At this time, when the shaft 1 is rotated, the impeller 9 can be driven to rotate, so that the slurry solid and liquid are sucked in from the feed port 11 and then discharged from the discharge port 12. The locking installation of the positioning wedge 10 can avoid the collision of large particles of slurry on the front guard plate component 8, thereby causing tilting displacement. This solution can reduce the wear of the sleeve 6 and the front guard plate component 8 and improve the service life.

[0032] Example 2

[0033] Reference Figure 1 、 Figure 2 and Figure 3As shown in the figure, it is the second embodiment of the utility model, which specifically enables the components to be securely connected and installed, so as to facilitate the later disassembly and internal cleaning. The first connecting member 14 is provided at the lower end connection of the slurry pump body 4 and the pump cover 7, a bracket bottom support 18 is provided below the left end of the shaft 1, and a second connecting member 15 is provided at the connection between the bracket bottom support 18 and the slurry pump body 4.

[0034] In this embodiment, preferably, the first connecting member 14 is composed of a connecting rod 1401, an adjusting rod 1402, a first adjusting nut 1403 and a second adjusting nut 1404; adjusting rods 1402 are provided at both ends of the left and right ends of the connecting rod 1401, and the first adjusting nut 1403 and the second adjusting nut 1404 are respectively provided on the outer sides of the adjusting rod 1402; the connecting rod 1401 passes through the slurry pump body 4 and the pump cover 7 in sequence, and the first adjusting nut 1403 and the second adjusting nut 1404 are both connected to the adjusting rod 1402 in a threaded manner, which can ensure a tight connection and installation between the slurry pump body 4 and the pump cover 7 under the action of the first connecting member 14, and is convenient for disassembly later.

[0035] In this embodiment, preferably, a first limiting ring plate 16 connected to the shaft rod 1 is provided on the lower side of the left end of the bracket top cover 2, and a second limiting ring plate 17 connected to the shaft rod 1 is provided on the lower side of the right end of the bracket top cover 2; the first limiting ring plate 16 and the second limiting ring plate 17 are both nested in connection with the shaft rod 1, and the first limiting ring plate 16 and the second limiting ring plate 17 are respectively connected to the bracket top cover 2 and the bracket bottom support 18 by bolts, and can connect the slurry pump body 4 and the bracket bottom support 18 under the action of the second connecting member 15, and cooperate with the first limiting ring plate 16 and the second limiting ring plate 17 to provide auxiliary support connection for the bracket top cover 2 and the bracket bottom support 18.

[0036] In summary, after the slurry pump body 4 and the pump cover 7 are docked and engaged, the connecting rod 1401 is used to pass through the slurry pump body 4 and the pump cover 7 in sequence, and the first adjusting nut 1403 and the second adjusting nut 1404 are respectively threadedly connected to the adjusting rods 1402 set at the left and right ends of the connecting rod 1401, so that the slurry pump body 4 and the pump cover 7 can be firmly connected and installed. The first limiting ring plate 16 and the second limiting ring plate 17 are respectively connected to the bracket top cover 2 and the bracket bottom support 18 by bolts, which can assist in supporting and fixing the bracket top cover 2, thereby improving the overall rotation stability of the shaft 1.

[0037] Example 3

[0038] This embodiment is obtained by combining the first embodiment and the second embodiment.

[0039] The above method, by driving three positioning wedges 10 into the gap between the pump cover 7 and the front guard plate component 8 and respectively setting the first connecting member 14 and the second connecting member 15 between the slurry pump body 4 and the pump cover 7 and the bracket bottom support 18, can not only protect the tilting displacement of the front guard plate component 8 and improve its service life, but also facilitate fastening and connection installation, and facilitate subsequent disassembly, replacement or cleaning.

[0040] The above describes an embodiment of the present invention in detail. However, the above content is only a preferred embodiment of the present invention and should not be considered to limit the scope of implementation of the present invention. All equivalent changes and improvements made within the scope of the present invention should still fall within the scope of the patent application of the present invention.

Claims

1. A double-casing slurry pump front guard plate positioning device, characterized in that: include; Axle (1); A bracket top cover (2) is arranged on the upper side of the left end of the shaft (1); a shaft seal component (3) is arranged on the outer side of the right end of the shaft (1); a slurry pump body (4) is arranged on the outer side of the shaft seal component (3); a rear guard plate (5) is arranged on the inner side of the right end of the slurry pump body (4); a pump cover (7) is arranged on the right side of the slurry pump body (4); a front guard plate component (8) is arranged on the inner side of the left end of the pump cover (7); a sleeve (6) is arranged on the outer side of the rear guard plate (5) and the front guard plate component (8); a positioning wedge (10) is arranged at the connection between the front guard plate component (8) and the pump cover (7); an impeller (9) is arranged on the right end of the shaft (1) and is located inside the slurry pump body (4) and the pump cover (7); A first connecting member (14) is provided at the connection between the lower ends of the slurry pump body (4) and the pump cover (7), a bracket bottom support (18) is provided below the left end of the shaft (1), and a second connecting member (15) is provided at the connection between the bracket bottom support (18) and the slurry pump body (4).

2. A double-casing slurry pump front guard plate positioning device according to claim 1, characterized in that: A detachable feed port (11) is provided at the right end of the pump cover (7), and a detachable discharge port (12) is provided on the upper side of the rear end of the connection between the pump cover (7) and the slurry pump body (4).

3. A double-casing slurry pump front guard plate positioning device according to claim 2, characterized in that: A square groove is provided in the middle of the right end of the pump cover (7), and the pump cover (7) and the front guard plate component (8) are connected to the positioning wedge (10) in a snap-fit ​​manner.

4. A double-casing slurry pump front guard plate positioning device according to claim 2, characterized in that: A shaft seal inner support frame (13) connected to the shaft seal component (3) is provided on the inner side of the slurry pump body (4); the shaft seal component (3) and the shaft seal inner support frame (13) are connected in a sleeve connection manner.

5. The double-casing slurry pump front guard plate positioning device according to claim 1 is characterized in that: The first connecting member (14) is composed of a connecting rod (1401), an adjusting rod (1402), a first adjusting nut (1403) and a second adjusting nut (1404); Adjustment rods (1402) are provided at both left and right ends of the connecting rod (1401), and a first adjustment nut (1403) and a second adjustment nut (1404) are provided on the outer sides of the adjustment rod (1402), respectively.

6. A double-casing slurry pump front guard plate positioning device according to claim 5, characterized in that: The connecting rod (1401) passes through the slurry pump body (4) and the pump cover (7) in sequence, and the first adjusting nut (1403) and the second adjusting nut (1404) are both connected to the adjusting rod (1402) in a threaded manner.

7. A double-casing slurry pump front guard plate positioning device according to claim 1, characterized in that: A first limiting ring plate (16) connected to the shaft (1) is provided on the lower side of the left end of the bracket top cover (2), and a second limiting ring plate (17) connected to the shaft (1) is provided on the lower side of the right end of the bracket top cover (2).

8. A double-casing slurry pump front guard plate positioning device according to claim 7, characterized in that: The first limiting ring plate (16) and the second limiting ring plate (17) are both nested with the shaft (1), and the first limiting ring plate (16) and the second limiting ring plate (17) are respectively connected to the bracket top cover (2) and the bracket bottom support (18) via bolts.

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