A slurry pump with composite materials

Abstract

The present invention relates to the technical field of slurry pumps, and discloses a slurry pump with a composite material, comprising a bracket, wherein the bracket is fixedly connected to a bearing assembly, one side of the bracket is fixedly connected to a pump body fixedly connected to the bearing assembly, one side of the pump body is fixedly connected to a pump cover, and one side of the pump cover is fixedly connected to a front sleeve and a front guard plate. The slurry pump with a composite material is achieved by fixing ceramic material plates at the bending parts of the front sleeve and the rear sleeve discharge ports, adding ceramic layer plates on the sides of the front guard plate and the rear guard plate that are in contact with the mortar, and adding a ceramic material layer to the surface of the impeller, so that ceramic material is added to all positions in the slurry pump that are in contact with the mortar, thereby further strengthening the positions in the slurry pump that are prone to wear, improving the wear capacity of the slurry pump, and using metal materials at positions that are not prone to wear, reducing production costs, and improving the comprehensive performance of the slurry pump.

Description

Technical Field

[0001] The present invention relates to the technical field of slurry pumps, and in particular to a slurry pump with composite materials. Background Art

[0002] A slurry pump is a centrifugal pump used to transport slurry. The medium transported by a slurry pump is relatively harsh and generally contains solid particles and corrosive chemicals. Since the medium contains solid particles, the wear on the flow-through components of the slurry pump is relatively severe. Currently, in order to solve the wear problem of slurry pumps both internationally and domestically, the commonly used metal material is wear-resistant white cast iron. This metal contains a high level of Cr, which can have an anti-wear effect for a certain period of time. However, even this material cannot solve the wear problem of slurry pumps in the long term. Due to the defect of the short service life of metal materials, a slurry pump made of ceramic material has now appeared in China. Ceramic materials can greatly extend the service life of slurry pumps.

[0003] However, the production cost of this material is too expensive, resulting in ceramic pumps being expensive and uncompetitive in the market. At the same time, during the use of existing slurry pumps, the impellers in the slurry pumps are prone to wear and damage, and need to be replaced more frequently during use. The impellers in existing slurry pumps are usually installed with threads when installed with the bearing assembly. After this threaded connection is installed, when the impeller needs to be disassembled, the thread locking force is large after the impeller has been rotated for a long time. During the disassembly process, the bearing assembly on the slurry pump needs to be fixed to prevent rotation, and then a crowbar is used to remove the impeller from the shaft of the bearing assembly, resulting in cumbersome disassembly and inconvenience for the staff to replace and repair the slurry pump impeller. At the same time, when the slurry pump is in use, the end face of the feed end is subjected to a large impact force, which can easily lead to impeller damage under the action of a large impact force. Summary of the Invention

[0004] The object of the present invention is to provide a slurry pump having a composite material to solve the deficiencies in the above-mentioned background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A slurry pump with a composite material comprises a bracket, the bracket is fixedly connected to a bearing assembly, one side of the bracket is fixedly connected to a pump body to which the bearing assembly is fixedly connected, one side of the pump body is fixedly connected to a pump cover, one side of the pump cover is fixedly connected to a front sleeve and a front guard plate, one side of the pump body is fixedly connected to a rear sleeve and a rear guard plate, the surfaces of the curved parts of the front sleeve and the rear sleeve discharge ports are fixedly connected to a first ceramic layer plate, the opposite sides of the front guard plate and the rear guard plate are fixedly connected to a second ceramic layer plate, the output end of the bearing assembly is fixedly connected to a transmission shaft, one end of the transmission shaft is fixedly connected to a connecting device, one end of the connecting device is fixedly connected to an impeller, and the outer surface of the impeller is fixedly connected to a third ceramic layer plate.

[0007] As a further solution of the present invention: the connecting device includes a first spline groove opened at the impeller connecting end, a connecting ring tube is slidably connected in the first spline groove, a first fixing mechanism connected to the impeller is provided in the connecting ring tube, a second spline groove is opened on the inner surface of the connecting ring tube, a connecting shaft fixedly connected to the transmission shaft is slidably connected in the second spline groove, a plurality of first transmission blocks slidably connected to the second spline groove are fixedly connected to the outer surface of the connecting shaft, and a second fixing mechanism connected to the connecting shaft is provided in the connecting ring tube.

[0008] As a further solution of the present invention: the second fixing mechanism includes a fixing ring slidably connected to the connecting ring tube, the outer surface of the fixing ring is fixedly connected to the second transmission block slidably connected to the second spline groove, one side of the fixing ring is fixedly connected to a shock-absorbing and buffering mechanism connected to the connecting ring tube, a plurality of mounting cavities are provided on the fixing ring, a fixing column is slidably connected in the mounting cavity, a fixing groove slidably connected to the fixing column is provided on the outer surface of the connecting shaft, and one end of the fixing column is transmission-connected to a transmission mechanism connected to the fixing ring.

[0009] As a further solution of the present invention: the transmission mechanism includes a transmission column slidably connected to a fixed ring, the bottom end of the transmission column is fixedly connected to a first transmission rack slidably connected to the fixed ring, one side of the first transmission rack is meshedly connected to a transmission gear rotatably connected to the mounting cavity, the outer surface of the transmission gear is meshedly connected to a second transmission rack fixedly connected to the fixed column, one end of the fixed column is fixedly connected to a telescopic rod fixedly connected to the mounting cavity, the outer surface of the telescopic rod is fixedly sleeved with a first spring fixedly connected to the mounting cavity, and one end of the transmission column is fixedly connected to a transmission ring.

[0010] As a further solution of the present invention: the material of the transmission ring is iron material.

[0011] As a further solution of the present invention: the buffer shock absorption mechanism includes a connecting block fixedly connected to the connecting ring tube, one side of the connecting block is fixedly connected to a shock-absorbing and damping telescopic rod, and the outer surface of the shock-absorbing and damping telescopic rod is fixedly sleeved with a second spring fixedly connected to the fixed ring.

[0012] As a further solution of the present invention: the first fixing mechanism includes a mounting groove provided on the impeller, wherein a fixing bolt threadedly connected to the connecting ring pipe is threadedly connected to the mounting groove.

[0013] As a further solution of the present invention: a plurality of wear-resistant ceramic ring plates are fixedly connected to opposite sides of the front guard plate and the rear guard plate.

[0014] Beneficial effects of the present invention:

[0015] (1) By fixing ceramic material plates at the bends of the front and rear jacket outlets, adding ceramic layer plates on the sides of the front and rear guard plates that are in contact with the mortar, and adding ceramic material layers on the surface of the impeller, ceramic materials are added to all the positions in the slurry pump that are in contact with the mortar, thereby further strengthening the positions in the slurry pump that are prone to wear, improving the wear capacity of the slurry pump, and using metal materials at positions that are not prone to wear, thereby reducing production costs and improving the overall performance of the slurry pump.

[0016] (2) The connecting ring tube is fixedly installed in the first spline groove of the impeller by the first fixing mechanism, and then the connecting shaft is portablely disassembled and assembled by the second fixing mechanism, thereby realizing portable replacement of the slurry pump impeller, which is convenient for the staff to repair the slurry pump.

[0017] (3) At the same time, when the impeller is damaged, the connecting ring tube can be removed from the first spline groove on the impeller by rotating the fixing bolts on the impeller, and then it can be installed in the next impeller, thereby realizing the reuse of the connecting ring tube and the internal structure of the connecting ring tube.

[0018] (4) When the feed end face of the impeller is impacted by a large slurry block, the impeller begins to move toward one side of the connecting shaft, and at this time moves in the second spline groove in the connecting ring tube through the fixed ring. At this time, the shock-absorbing and damping telescopic rod and the second spring contract to buffer and damp the impact force on the impeller, thereby greatly reducing the impact force on the impeller surface and effectively preventing the ceramic layer on the impeller surface from being broken under a large impact force, thereby reducing the service life of the impeller and greatly improving the service life of the impeller. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The present invention will be further described below with reference to the accompanying drawings.

[0020] Figure 1It is a three-dimensional diagram of the external structure of the present invention;

[0021] Figure 2 It is an exploded view of the internal structure of the present invention;

[0022] Figure 3 This is a three-dimensional diagram of the external structure of the impeller and the connecting shaft of the present invention;

[0023] Figure 4 It is a partial stereogram of the impeller of the present invention and a stereogram of the external structure of the connecting shaft;

[0024] Figure 5 It is a three-dimensional diagram of the internal structure of the impeller and the connecting shaft of the present invention;

[0025] Figure 6 This is a partial front view of the interior of the impeller of the present invention;

[0026] Figure 7 This invention Figure 2 A magnified view of middle A;

[0027] Figure 8 This is the present invention Figure 6 Magnified view of B.

[0028] In the figure: 1. bracket; 2. bearing assembly; 3. pump body; 4. pump cover; 5. front sleeve; 6. front guard plate; 7. rear sleeve; 8. rear guard plate; 9. first ceramic layer; 10. second ceramic layer; 11. transmission shaft; 12. impeller; 13. third ceramic layer; 21. first spline groove; 22. connecting ring tube; 23. second spline groove; 24. connecting shaft; 25. first transmission block; 31. fixing ring; 32. second transmission block; 33. mounting cavity; 34. fixing column; 35. fixing groove; 41. transmission column; 42. first transmission rack; 43. transmission gear; 44. second transmission rack; 45. telescopic rod; 46. first spring; 47. transmission ring; 51. connecting block; 52. shock-absorbing and damping telescopic rod; 53. second spring; 61. mounting groove; 62. fixing bolt; 71. wear-resistant ceramic ring. DETAILED DESCRIPTION

[0029] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments 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 any creative efforts shall fall within the scope of protection of the present invention.

[0030] Example 1

[0031] See also Figures 1-8As shown, the present invention is a slurry pump with a composite material, including a bracket 1, the bracket 1 is fixedly connected to a bearing assembly 2, one side of the bracket 1 is fixedly connected to a pump body 3 fixedly connected to the bearing assembly 2, one side of the pump body 3 is fixedly connected to a pump cover 4, one side of the pump cover 4 is fixedly connected to a front sleeve 5 and a front guard plate 6, one side of the pump body 3 is fixedly connected to a rear sleeve 7 and a rear guard plate 8, and the surfaces of the front sleeve 5 and the rear sleeve 7 at the bent part of the discharge port are fixedly connected with a first ceramic layer 9. During the casting process of the front sleeve 5 and the rear sleeve 7, ceramic material is added to the bent part of the discharge port of the casting mold in advance, and then the smelted metal liquid is poured into the prepared mold to melt the metal material and the ceramic material. Together, the wear resistance of the bend of the discharge port of the front shield 5 and the rear shield 7 is improved. The second ceramic layer 10 is fixedly connected to the opposite side of the front guard plate 6 and the rear guard plate 8. During the casting process of the front guard plate 6 and the rear guard plate 8, the second ceramic layer 10 is added to the mold in advance, and the smelted metal liquid is poured into the prepared mold to fuse the metal material and the ceramic material together, thereby improving the wear resistance of the surface of the front guard plate 6 and the rear guard plate 8. Then, the output end of the bearing assembly 2 is fixedly connected to the transmission shaft 11, one end of the transmission shaft 11 is fixedly connected to a connecting device, one end of the connecting device is fixedly connected to the impeller 12, and the outer surface of the impeller 12 is fixedly connected to the third ceramic layer 13. During the casting process of the impeller, the third ceramic layer 13 is placed in the prepared mold in advance, and then the smelted metal liquid is poured into the prepared mold to fuse the metal material and the ceramic material together, so that the outer surface of the impeller 12 is fixed with the third ceramic layer 13.

[0032] A plurality of wear-resistant ceramic ring plates 71 are fixedly connected to opposite sides of the front guard plate 6 and the rear guard plate 8 .

[0033] By casting and fixing a plurality of wear-resistant ceramic ring plates 71 on one side of the front guard plate 6 and the rear guard plate 8, the wear resistance of the surface of the front guard plate 6 and the rear guard plate 8 is further improved.

[0034] By fixing ceramic material plates at the bending parts of the front jacket 5 and the rear jacket 7 at the discharge ports, adding ceramic layer plates on the sides of the front guard plate 6 and the rear guard plate 8 in contact with the mortar, and adding ceramic material layers on the surface of the impeller 12, ceramic materials are added to all positions in the slurry pump that are in contact with the mortar, thereby further strengthening the positions in the slurry pump that are prone to wear, improving the wear capacity of the slurry pump, and using metal materials in positions that are not prone to wear, thereby reducing production costs and improving the overall performance of the slurry pump.

[0035] Example 2

[0036] Based on Example 1, please refer to Figure 2-Figure 8As shown, the connecting device includes a first spline groove 21 opened at the connecting end of the impeller 12, a connecting ring tube 22 is slidably connected in the first spline groove 21, a first fixing mechanism connected to the impeller 12 is provided in the connecting ring tube 22, a second spline groove 23 is opened on the inner surface of the connecting ring tube 22, a connecting shaft 24 fixedly connected to the transmission shaft 11 is slidably connected in the second spline groove 23, a plurality of first transmission blocks 25 slidably connected to the second spline groove 23 are fixedly connected to the outer surface of the connecting shaft 24, and a second fixing mechanism connected to the connecting shaft 24 is provided in the connecting ring tube 22.

[0037] The first fixing mechanism includes a mounting groove 61 formed on the impeller 12 . A fixing bolt 62 threadedly connected to the connecting ring tube 22 is internally threadedly connected to the mounting groove 61 .

[0038] The connecting ring tube 22 is inserted into the first spline groove 21 , and then the fixing bolt 62 is threadedly connected in the installation groove 61 to fix the connecting ring tube 22 in the impeller 12 .

[0039] The second fixing mechanism includes a fixing ring 31 that is slidably connected to the connecting ring tube 22, and the outer surface of the fixing ring 31 is fixedly connected to a second transmission block 32 that is slidably connected to the second spline groove 23. One side of the fixing ring 31 is fixedly connected to a shock-absorbing and buffering mechanism connected to the connecting ring tube 22. A plurality of mounting cavities 33 are provided on the fixing ring 31, and a fixing column 34 is slidably connected in the mounting cavity 33. A fixing groove 35 is provided on the outer surface of the connecting shaft 24 to which the fixing column 34 is slidably connected, and one end of the fixing column 34 is transmission-connected to a transmission mechanism connected to the fixing ring 31.

[0040] The transmission mechanism includes a transmission column 41 slidably connected to a fixed ring 31. The bottom end of the transmission column 41 is fixedly connected to a first transmission rack 42 slidably connected to the fixed ring 31. One side of the first transmission rack 42 is meshedly connected to a transmission gear 43 rotatably connected to the installation cavity 33. The outer surface of the transmission gear 43 is meshedly connected to a second transmission rack 44 fixedly connected to the fixed column 34. One end of the fixed column 34 is fixedly connected to a telescopic rod 45 fixedly connected to the installation cavity 33. The outer surface of the telescopic rod 45 is fixedly sleeved with a first spring 46 fixedly connected to the installation cavity 33. One end of the transmission column 41 is fixedly connected to a transmission ring 47. The transmission ring 47 is made of iron.

[0041] The permanent magnet plate is close to the side of the impeller 12, thereby driving the transmission ring 47 inside the impeller 12 to move, and the transmission ring 47 drives the transmission column 41 to move, and the transmission column 41 drives the first transmission rack 42 to move, and the first transmission rack 42 drives the transmission gear 43 to rotate, and the transmission gear 43 drives the second transmission rack 44 to move, and the second transmission rack 44 drives the fixed column 34 to move, so that the fixed column 34 moves into the fixed ring 31, and the telescopic rod 45 and the first spring 46 are contracted, and then the connecting shaft 24 is inserted into Into the connecting ring tube 22, and then by removing the permanent magnet ring, the transmission ring 47 is no longer under force. At this time, the fixing column 34 is moved out of the installation cavity 33 of the connecting ring tube 22 under the elastic force of the first spring 46, and inserted into the fixing groove 35 on the connecting shaft 24, thereby achieving a fixed connection to the connecting shaft 24. When it needs to be disassembled, the permanent magnet plate is moved to the side of the impeller 12, the fixing column 34 is removed from the fixing groove 35, and then the impeller 12 is moved, thereby achieving portable disassembly and assembly of the impeller 12, the connecting ring tube 22 and the connecting shaft 24.

[0042] First, insert the connecting ring tube 22 into the first spline groove 21, and then fix the connecting ring tube 22 on the impeller 12 by the fixing bolt 62. The permanent magnet plate is close to the side of the impeller 12, thereby driving the transmission ring 47 inside the impeller 12 to move, and the transmission ring 47 drives the transmission column 41 to move, and the transmission column 41 drives the first transmission rack 42 to move, and the first transmission rack 42 drives the transmission gear 43 to rotate, and the transmission gear 43 drives the second transmission rack 44 to move, and the second transmission rack 44 drives the fixing column 34 to move, so that the fixing column 34 Move into the fixing ring 31, the telescopic rod 45 and the first spring 46 contract, and then the connecting shaft 24 is inserted into the connecting ring tube 22. Then, by removing the permanent magnet ring, the transmission ring 47 is no longer under force. At this time, the fixing column 34 is moved out of the installation cavity 33 of the fixing ring 31 under the elastic force of the first spring 46 and inserted into the fixing groove 35 on the connecting shaft 24, thereby achieving a fixed connection to the connecting shaft 24. When it needs to be disassembled, the permanent magnet plate is moved to the side of the impeller 12, the fixing column 34 is removed from the fixing groove 35, and then the impeller 12 is moved. In this way, the impeller 12, the connecting ring tube 22 and the connecting shaft 24 can be portablely disassembled and assembled, thereby achieving portable replacement of the impeller 12, which is convenient for the staff to repair the slurry pump. At the same time, when the impeller 12 is damaged, the connecting ring tube 22 can be removed from the first spline groove 21 on the impeller 12 by rotating the fixing bolt 62 on the impeller 12, and then it can be installed in the next impeller 12, thereby realizing the reuse of the connecting ring tube 22 and the internal structure of the connecting ring tube 22.

[0043] Example 3

[0044] Based on Example 2, please refer to Figure 4-Figure 6 and Figure 8 As shown, the buffer shock absorbing mechanism includes a connecting block 51 fixedly connected to the connecting ring tube 22, and a shock absorbing and damping telescopic rod 52 is fixedly connected to one side of the connecting block 51. The outer surface of the shock absorbing and damping telescopic rod 52 is fixedly sleeved with a second spring 53 fixedly connected to the fixing ring 31.

[0045] When the feed end face of the impeller 12 is impacted by a large slurry block, the impeller 12 begins to move toward one side of the connecting shaft 24, and at this time moves in the second spline groove 23 in the connecting ring tube 22 through the fixing ring 31. At this time, the shock-absorbing and damping telescopic rod 52 and the second spring 53 contract to buffer and reduce the impact force on the impeller 12, thereby greatly reducing the impact force on the surface of the impeller 12, and effectively preventing the ceramic layer on the surface of the impeller 12 from being broken under a large impact force, thereby reducing the service life of the impeller 12, and greatly improving the service life of the impeller 12.

[0046] The working principle of the present invention is as follows: first, the connecting ring tube 22 is inserted into the first spline groove 21, and then the connecting ring tube 22 is fixed to the impeller 12 by the fixing bolt 62, and the permanent magnet plate is close to the side of the impeller 12, thereby driving the transmission ring 47 inside the impeller 12 to move, and the transmission ring 47 drives the transmission column 41 to move, and the transmission column 41 drives the first transmission rack 42 to move, and the first transmission rack 42 drives the transmission gear 43 to rotate, and the transmission gear 43 drives the second transmission rack 44 to move, and the second transmission rack 44 drives the fixing column 34 to move, so that The fixing post 34 moves into the fixing ring 31, the telescopic rod 45 and the first spring 46 contract, and the connecting shaft 24 is then inserted into the connecting ring tube 22. Then, by removing the permanent magnet ring, the transmission ring 47 is no longer under force. At this time, the fixing post 34 is removed from the installation cavity 33 of the fixing ring 31 under the elastic force of the first spring 46 and inserted into the fixing groove 35 on the connecting shaft 24, thereby achieving a fixed connection with the connecting shaft 24. When removal is required, the permanent magnet plate is moved to the side of the impeller 12, the fixing post 34 is removed from the fixing groove 35, and then the impeller 12 is moved. This realizes the portable disassembly and assembly of the impeller 12, the connecting ring tube 22, and the connecting shaft 24. This enables portable replacement of the impeller 12. At the same time, when the impeller 12 is damaged, the connecting ring tube 22 can be removed from the first spline groove 21 on the impeller 12 by rotating the fixing bolt 62 on the impeller 12, and then it can be installed in the next impeller 12, thereby achieving the reuse of the connecting ring tube 22 and the internal structure of the connecting ring tube 22.

[0047] When the feed end face of the impeller 12 is impacted by a large slurry block, the impeller 12 begins to move toward one side of the connecting shaft 24, and at this time moves in the second spline groove 23 in the connecting ring tube 22 through the fixing ring 31. At this time, the shock-absorbing and damping telescopic rod 52 and the second spring 53 contract to buffer and reduce the impact force on the impeller 12, thereby greatly reducing the impact force on the surface of the impeller 12, and effectively preventing the ceramic layer on the surface of the impeller 12 from being broken under a large impact force, thereby reducing the service life of the impeller 12, and greatly improving the service life of the impeller 12.

[0048] The above is a detailed description of an embodiment of the present invention. However, the content described is only a preferred embodiment of the present invention and should not be considered to limit the scope 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 coverage of the present invention.

Claims

1. A slurry pump having a composite material, comprising a bracket (1), wherein the bracket (1) is fixedly connected to a bearing assembly (2), one side of the bracket (1) is fixedly connected to a pump body (3) fixedly connected to the bearing assembly (2), and one side of the pump body (3) is fixedly connected to a pump cover (4), characterized in that: One side of the pump cover (4) is fixedly connected to a front sleeve (5) and a front guard plate (6), one side of the pump body (3) is fixedly connected to a rear sleeve (7) and a rear guard plate (8), the surfaces of the bent parts of the discharge ports of the front sleeve (5) and the rear sleeve (7) are fixedly connected to a first ceramic layer plate (9), the opposite sides of the front guard plate (6) and the rear guard plate (8) are fixedly connected to a second ceramic layer plate (10), the output end of the bearing assembly (2) is fixedly connected to a transmission shaft (11), one end of the transmission shaft (11) is fixedly connected to a connecting device, one end of the connecting device is fixedly connected to an impeller (12), and the outer surface of the impeller (12) is fixedly connected to a third ceramic layer plate (13); The connecting device comprises a first spline groove (21) provided at a connecting end of the impeller (12), a connecting ring tube (22) being slidably connected in the first spline groove (21), a first fixing mechanism connected to the impeller (12) being provided in the connecting ring tube (22), a second spline groove (23) being provided on the inner surface of the connecting ring tube (22), a connecting shaft (24) fixedly connected to the transmission shaft (11) being slidably connected in the second spline groove (23), a plurality of first transmission blocks (25) slidably connected to the second spline groove (23) being fixedly connected to the outer surface of the connecting shaft (24), and a second fixing mechanism connected to the connecting shaft (24) being provided in the connecting ring tube (22).

2. A slurry pump with a composite material according to claim 1, characterized in that: The second fixing mechanism comprises a fixing ring (31) slidably connected to the connecting ring tube (22); the outer surface of the fixing ring (31) is fixedly connected to a second transmission block (32) slidably connected to the second spline groove (23); one side of the fixing ring (31) is fixedly connected to a shock-absorbing and buffering mechanism connected to the connecting ring tube (22); a plurality of mounting cavities (33) are provided on the fixing ring (31); a fixing column (34) is slidably connected in the mounting cavity (33); a fixing groove (35) slidably connected to the fixing column (34) is provided on the outer surface of the connecting shaft (24); and one end of the fixing column (34) is transmission-connected to a transmission mechanism connected to the fixing ring (31).

3. A slurry pump with a composite material according to claim 2, characterized in that: The transmission mechanism includes a transmission column (41) slidably connected to a fixed ring (31), a bottom end of the transmission column (41) is fixedly connected to a first transmission rack (42) slidably connected to the fixed ring (31), one side of the first transmission rack (42) is meshedly connected to a transmission gear (43) rotatably connected to the mounting cavity (33), an outer surface of the transmission gear (43) is meshedly connected to a second transmission rack (44) fixedly connected to the fixed column (34), one end of the fixed column (34) is fixedly connected to a telescopic rod (45) fixedly connected to the mounting cavity (33), an outer surface of the telescopic rod (45) is fixedly sleeved with a first spring (46) fixedly connected to the mounting cavity (33), and one end of the transmission column (41) is fixedly connected to a transmission ring (47).

4. A slurry pump with a composite material according to claim 3, characterized in that: The material of the transmission ring (47) is iron material.

5. The slurry pump with composite material according to claim 3, characterized in that: The shock-absorbing and buffering mechanism comprises a connecting block (51) fixedly connected to the connecting ring tube (22); a shock-absorbing and damping telescopic rod (52) is fixedly connected to one side of the connecting block (51); and a second spring (53) fixedly connected to the fixing ring (31) is fixedly sleeved on the outer surface of the shock-absorbing and damping telescopic rod (52).

6. The slurry pump with composite material according to claim 1, characterized in that: The first fixing mechanism comprises a mounting groove (61) provided on the impeller (12), wherein the mounting groove (61) is internally threadedly connected to a fixing bolt (62) threadedly connected to the connecting ring tube (22).

7. The slurry pump with composite material according to claim 1, characterized in that: A plurality of wear-resistant ceramic ring plates (71) are fixedly connected to opposite sides of the front guard plate (6) and the rear guard plate (8).

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