Horizontal centrifugal pump capable of preventing medium particle accumulation wear

Abstract

The application discloses a horizontal centrifugal pump capable of preventing medium particle accumulation abrasion, relates to the technical field of horizontal centrifugal pumps, and comprises a base, a motor fixedly installed on the top of the base, a rotating shaft fixedly installed at the output end of the motor, a rotating disc fixedly installed at the end of the rotating shaft away from the output end of the motor, a water suction tank fixedly installed on the top of the base, a connecting ring fixedly installed on the right side of the water suction tank, a filter device arranged in the water suction tank, a lubricating device arranged on the top of the connecting ring, and a cooling device arranged in the connecting ring. The filter device comprises a water inlet, a water outlet, a filter disc, a sliding rod, an inclined block one, an inclined block two, an L-shaped rod and a sealing ring. Larger particles are filtered by the filter disc to prevent the particles from entering the pump, prolong the service life of the rotating disc and other components, reduce the frequency of equipment maintenance and component replacement, and thus reduce the maintenance cost.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of horizontal centrifugal pumps, in particular, relates to a horizontal centrifugal pump capable of preventing medium particle accumulation and abrasion. BACKGROUND

[0002] The horizontal centrifugal pump capable of preventing medium particle accumulation and abrasion is generally a pump designed to handle fluids containing particulate matter. Through special design, this pump filters particles, optimizes impeller shape, increases pump cavity gap, etc., to reduce the accumulation of particles inside the pump, thereby effectively reducing wear and tear and prolonging the service life of the pump.

[0003] The patent with the patent announcement number CN205895624U relates to the technical field of horizontal centrifugal pumps. The patent comprises a base, a pump body, an impeller, a stainless steel fixed impeller screw, a mechanical seal, a plug, a stainless steel cover plate, a connected pump cover, a steering plate, an electric motor, a special track for maintenance, a motor lower cover plate, and a movable wheel. The use of stainless steel inlay and motor lower flange improves the overall appearance of the centrifugal pump. The connected pump cover is directly connected to the motor lower bearing end cover, improving assembly efficiency, increasing height, and increasing temperature resistance. The motor shaft directly leads to the pump cover, improving concentricity and increasing the stability of the motor. The structure of the horizontal centrifugal pump is more simplified and reasonable, easy to install and process, with fewer processes, greatly improving work efficiency and economic benefits.

[0004] In the above-mentioned patent, the use of stainless steel inlay and motor lower flange improves the overall appearance of the centrifugal pump. The connected pump cover is directly connected to the motor lower bearing end cover, improving assembly efficiency, increasing height, and increasing temperature resistance. The motor shaft directly leads to the pump cover, improving concentricity and increasing the stability of the motor, but it is difficult to filter and block some larger particles in the water during operation, which can easily cause the particles to enter the centrifugal pump and damage the internal parts. SUMMARY

[0005] In view of the deficiencies of the prior art, the present application provides a horizontal centrifugal pump capable of preventing medium particle accumulation and abrasion, which solves the problems raised in the background art.

[0006] To achieve the above-mentioned purposes, the present application is realized by the following technical scheme: a horizontal centrifugal pump capable of preventing medium particle accumulation and abrasion, comprising a base, a motor fixedly installed on the top of the base, a rotating shaft fixedly installed on the output end of the motor, a rotating disc fixedly installed on the end of the rotating shaft away from the output end of the motor, a water suction tank fixedly installed on the top of the base, a connecting ring fixedly installed on the right side of the water suction tank, a filter device arranged inside the water suction tank, a lubricating device arranged on the top of the connecting ring, and a cooling device arranged inside the connecting ring.

[0007] The filtering device comprises a water inlet, a water outlet, a filter disc, a sliding rod, an inclined block one, an inclined block two, an L-shaped rod and a sealing ring, the water inlet is fixedly installed on the left side of the water suction box, the water outlet is fixedly installed on the top of the water suction box, the filter disc is fixedly installed on the inner wall of the water inlet, the sliding rod is slidably penetrated through the filter disc, the inclined block one is fixedly installed on one end of the sliding rod close to the rotating shaft, the inclined block two is fixedly installed on one end of the rotating shaft close to the sliding rod, the L-shaped rod is fixedly installed on one end of the sliding rod away from the inclined block one, and the sealing ring is fixedly installed on one end of the L-shaped rod away from the sliding rod.

[0008] According to the above technical scheme, the side close to each other of the inclined block one and the inclined block two is provided as an inclined surface, and the spring one is arranged between the sliding rod and the filter disc, so that the inclined block two can smoothly push the inclined block one during rotation, and the spring one ensures that the sliding rod can be automatically reset.

[0009] According to the above technical scheme, the lubricating device comprises a push rod one, a fixed block, an elastic telescopic rod, an oil tank and a sliding door, the push rod one is fixedly installed on one end of the sliding rod close to the inclined block one, the fixed block is fixedly installed on the inner wall of the connecting ring, the elastic telescopic rod is slidably installed on the top of the fixed block, the oil tank is fixedly installed on the top of the connecting ring, and the sliding door is fixedly installed on the movable end of the elastic telescopic rod, so that the push rod one starts to move when the sliding rod moves, the sliding door starts to move when the push rod one moves, the oil outlet of the oil tank is opened when the sliding door moves, and the lubricating oil flows out of the oil outlet and contacts the rotating shaft and the output end of the motor.

[0010] According to the above technical scheme, the lubricating device further comprises an oil suction pump, an oil pipe, a switch button one and a long rod, the oil suction pump is fixedly installed on the top of the oil tank, the oil pipe is fixedly installed on the front, the switch button one is slidably installed on the bottom of the oil suction pump, and the long rod is fixedly installed on the top of the sliding door, so that the long rod starts to move when the sliding door moves, the switch button one moves at the control end of the oil suction pump when the long rod moves, the oil suction pump is started to work when the switch button one is started, the lubricating oil on the bottom of the inner wall of the connecting ring falls from the rotating shaft and is sucked away, and then the lubricating oil is recycled in the oil tank.

[0011] According to the above technical scheme, the lubricating device further comprises a scraping rod and a filter plate, the scraping rod is fixedly installed on the bottom of the push rod one, and the filter plate is fixedly installed on the bottom of the inner wall of the connecting ring, so that the scraping rod starts to move when the push rod one moves, and the impurities of the filtered lubricating oil on the filter plate are scraped off.

[0012] According to the technical scheme, one side of the push rod I and the sliding door is provided with an inclined surface, the oil suction pump is electrically connected with the switch button I, spring II is arranged between the elastic telescopic rod and the bottom of the fixed block, the inclined surface ensures that the push rod I can smoothly push the sliding door when moving, the electrical connection ensures that the switch button I can control the start and stop of the oil suction pump, and the spring II ensures that the elastic telescopic rod can realize self-resetting.

[0013] According to the technical scheme, the cooling device comprises a water suction pump, a water pipe, a push block and a switch button II, the water suction pump is fixedly installed at the bottom of the fixed block, the water pipe is fixedly installed at the front of the water suction pump, the push block is fixedly installed at the bottom of the push rod I, and the switch button II is slidingly installed at the top of the fixed block. The push block starts to move while the sliding rod moves, the push block moves to drive the switch button II to move at the control end of the water suction pump, so that the switch button II starts the water suction pump to work, and the water suction pump works to make the water flow in the water pipe contact with the lubricating oil on the outer wall of the water pipe.

[0014] According to the technical scheme, the water suction pump is electrically connected with the switch button II, and one side of the push block and the switch button II is provided with an inclined surface. The electrical connection ensures that the switch button II can control the start and stop of the water suction pump, and the inclined surface ensures that the push block can smoothly push the switch button II when moving.

[0015] According to the technical scheme, the cooling device further comprises a moving rod, a push plate, a push rod II and an inclined block, the moving rod is slidingly installed in the inner wall of the connecting ring, the push plate is fixedly installed at the bottom of the moving rod, the push rod II is fixedly installed at the top of the scraping rod, and the inclined block is fixedly installed at the top of the push plate. The push rod II starts to move while the scraping rod moves, the push rod II moves to drive the inclined block to start to move, the inclined block moves to drive the moving rod to start to move, and the moving rod moves to drive the push plate to start to move.

[0016] According to the technical scheme, one side of the push rod II and the inclined block is provided with an inclined surface, and spring III is arranged between the push plate and the inner wall of the connecting ring. The inclined surface ensures that the push rod II can smoothly push the inclined block when moving, and the spring III ensures that the push plate can realize self-resetting.

[0017] The application provides a horizontal centrifugal pump capable of preventing medium particle accumulation and abrasion.

[0018] (1) The invention, the push rod inclined block moves to drive the slide rod to start moving, the slide rod moves to extend to ensure that the water inlet is not blocked, so that the centrifugal pump can normally suck liquid, prevent the water inlet from being blocked, causing the water flow into the pump body to be unstable, causing parts to wear and damage, filter larger particles through the filter disc to prevent these particles from entering the pump, prolonging the service life of the rotating disc and other components, reducing equipment maintenance and replacement parts frequency, thereby reducing maintenance costs, moving the L-shaped rod to drive the sealing ring to start moving, the sealing ring moves to seal the connection between the water inlet and the connecting part, effectively preventing liquid from leaking from the connection between the water inlet and the connecting part, ensuring that the liquid is restricted in the flow passage inside the pump body, preventing liquid from flowing out.

[0019] (2) The invention, the oil outlet of the oil tank is opened by moving the door, the oil outlet of the oil tank is opened, the lubricating oil flows out through the oil outlet and contacts the output end of the rotating shaft and the motor, greatly reducing the friction, reducing the wear of the parts, enabling smoother operation, prolonging the service life of the bearings, pump shaft and other key components, preventing excessive wear caused by a large friction coefficient during high-speed rotation, the lubricating oil that falls into the inner wall of the connecting ring at the bottom is sucked away by the oil pump, and is recycled again inside the oil tank, recycling the lubricating oil can reduce the processing cost of the lubricating oil, recycling and reusing the lubricating oil can reduce the amount of waste lubricating oil discharged, thereby reducing the risk of environmental pollution, impurities are removed by filtering to enable the lubricating oil to continue to effectively play a lubricating role, thereby prolonging the service life of the lubricating oil, reducing the replacement frequency of the lubricating oil, reducing operating costs, the filter plate is scraped by the scraping rod to remove the filtered lubricating oil impurities, which can timely remove these accumulated impurities, keep the filter hole of the filter plate unobstructed, and ensure that the lubricating oil can be filtered in time and returned to the lubricating system.

[0020] (3) The invention, the water flow in the water pipe is circulated by the water pump, the outer wall of the water pipe contacts the lubricating oil, the water flow can effectively reduce the temperature of the lubricating oil, keep it within the appropriate working temperature range, avoid the lubricating oil from deteriorating or losing lubricating performance due to high temperature, the push plate starts to move by moving the rod, the push plate moves to agitate the lubricating oil, which can make the lubricating oil at different positions fully contact the water-cooled heat dissipation surface, making heat transfer more efficient, thereby improving the heat dissipation efficiency of the entire lubricating oil cooling system. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 The overall structure of the invention is shown in the figure;

[0022] Figure 2 The structure of the rotating shaft and the rotating disc is shown in the figure;

[0023] Figure 3 The structure of the filter device is shown in the figure;

[0024] Figure 4 It is the structure section view schematic diagram of L-shaped rod and sealing ring of the application;

[0025] Figure 5 It is the structure section view schematic diagram of L-shaped rod and sealing ring of the application; Figure 4 It is the enlarged schematic diagram of A part structure in the application;

[0026] Figure 6 It is the structure section view schematic diagram of lubricating device of the application;

[0027] Figure 7 It is the structure section view schematic diagram of filter plate and scraping rod of the application;

[0028] Figure 8 It is the structure section view schematic diagram of cooling device of the application;

[0029] Figure 9 It is the enlarged schematic diagram of B part structure in the application. Figure 8

[0030] In the figure: 1, base; 2, motor; 3, rotating shaft; 4, rotating disc; 5, water suction tank; 51, connecting ring; 6, water inlet; 7, water outlet; 8, filter disc; 9, sliding rod; 10, inclined block one; 11, inclined block two; 12, L-shaped rod; 13, sealing ring; 141, push rod one; 142, fixed block; 143, elastic telescopic rod; 144, oil tank; 145, sliding door; 146, oil suction pump; 147, oil pipe; 148, switch button one; 149, long rod; 1410, scraping rod; 1411, filter plate; 151, water suction pump; 152, water pipe; 153, push block; 154, switch button two; 155, moving rod; 156, push plate; 157, push rod two; 158, inclined surface block. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only part of the embodiments of the application, rather than all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the application.

[0032] Please refer to Figures 1-9 An embodiment of the application is: a horizontal centrifugal pump capable of preventing medium particle accumulation and abrasion, comprising a base 1, a motor 2 fixedly installed on the top of the base 1, a rotating shaft 3 fixedly installed on the output end of the motor 2, a rotating disc 4 fixedly installed on the end of the rotating shaft 3 away from the output end of the motor 2, a water suction tank 5 fixedly installed on the top of the base 1, a connecting ring 51 fixedly installed on the right side of the water suction tank 5, and a filter device arranged in the water suction tank 5.

[0033] ​The filtering device comprises a water inlet 6, a water outlet 7, a filter disc 8, a sliding rod 9, an inclined block one 10, an inclined block two 11, an L-shaped rod 12 and a sealing ring 13. The water inlet 6 is fixedly installed on the left side of the water suction box 5, the water outlet 7 is fixedly installed on the top of the water suction box 5, the filter disc 8 is fixedly installed on the inner wall of the water inlet 6, the sliding rod 9 is slidably penetrated through the filter disc 8, the inclined block one 10 is fixedly installed on one end of the sliding rod 9 close to the rotating shaft 3, the inclined block two 11 is fixedly installed on one end of the rotating shaft 3 close to the sliding rod 9, the L-shaped rod 12 is fixedly installed on one end of the sliding rod 9 away from the inclined block one 10, and the sealing ring 13 is fixedly installed on one end of the L-shaped rod 12 away from the sliding rod 9. The filter disc 8 filters the larger particles to prevent the particles from entering the pump, prolongs the service life of the rotating disc 4 and other components, reduces the frequency of equipment maintenance and replacement of components, and thus reduces the maintenance cost.

[0034] The surface, on which the inclined block one 10 and the inclined block two 11 are close to each other, is provided with an inclined surface, and a spring one is arranged between the sliding rod 9 and the filter disc 8. The inclined surface ensures that the inclined block two 11 can smoothly push the inclined block one 10 when rotating, and the spring one ensures that the sliding rod 9 can realize self-resetting.

[0035] When the embodiment works: first, check the working state of the motor 2 to ensure that the machine will not have problems when working, then connect the water inlet 6 and the water outlet 7 respectively, confirm the completion of the connection, start the motor 2, make the motor 2 drive the rotating shaft 3 to start rotating, the rotating shaft 3 drives the rotating disc 4 to start rotating, the rotating disc 4 rotates and generates friction with the liquid, so that the liquid obtains energy and rotates with the rotating disc 4, under the action of centrifugal force, the liquid is thrown out of the rotating disc 4, flows along the flow channel of the water suction box 5, and then is thrown out from the water outlet 7. The rotating shaft 3 drives the inclined block two 11 to start rotating at the same time, the inclined block two 11 drives the inclined block one 10 to start moving, the inclined block one 10 drives the sliding rod 9 to start moving, the sliding rod 9 moves out to ensure that the water inlet 6 is not blocked, so that the centrifugal pump can normally suck liquid, prevent the water inlet 6 from being blocked, causing the water flow into the pump body to be unstable, causing the components to wear and damage, at the same time, the filter disc 8 filters the larger particles to prevent the particles from entering the pump, prolongs the service life of the rotating disc 4 and other components, reduces the frequency of equipment maintenance and replacement of components, and thus reduces the maintenance cost; the L-shaped rod 12 starts moving at the same time as the sliding rod 9 moves, the L-shaped rod 12 drives the sealing ring 13 to start moving, the sealing ring 13 moves to seal the connection part of the connecting piece and the water inlet 6, which can effectively prevent the liquid from leaking from the connection part of the water inlet 6 and the connecting piece, ensure that the liquid is limited in the flow channel inside the pump body, and prevent the outflow of the liquid.

[0036] Please refer to Figures 1-9On the basis of the above embodiment, in another embodiment of the application, the top of the connecting ring 51 is provided with a lubricating device, and the inside of the connecting ring 51 is provided with a cooling device, the lubricating device comprises a push rod one 141, a fixed block 142, an elastic telescopic rod 143, an oil tank 144 and a sliding door 145, the push rod one 141 is fixedly installed at one end of the slide rod 9 close to the inclined block one 10, the fixed block 142 is fixedly installed on the inner wall of the connecting ring 51, the elastic telescopic rod 143 is slidingly installed on the top of the fixed block 142, the oil tank 144 is fixedly installed on the top of the connecting ring 51, and the sliding door 145 is fixedly installed on the movable end of the elastic telescopic rod 143. The oil outlet of the oil tank 144 is opened by moving the sliding door 145, and the lubricating oil flows out through the oil outlet and contacts the output end of the motor 2 and the rotating shaft 3, thereby greatly reducing the friction, reducing the wear of the parts, enabling the device to run more smoothly, prolonging the service life of the key parts such as bearings and pump shafts, and preventing excessive wear caused by a large friction coefficient during high-speed rotation.

[0037] The lubricating device further comprises an oil suction pump 146, an oil pipe 147, a switch button one 148 and a long rod 149, the oil suction pump 146 is fixedly installed on the top of the oil tank 144, the oil pipe 147 is fixedly installed at the front, the switch button one 148 is slidingly installed on the bottom of the oil suction pump 146, and the long rod 149 is fixedly installed on the top of the sliding door 145. The lubricating oil accumulated on the bottom of the inner wall of the connecting ring 51 is sucked away from the rotating shaft 3 by the oil suction pump 146, and then enters the inside of the oil tank 144 for recycling, so that the processing cost of the lubricating oil is reduced, the discharge amount of waste lubricating oil is reduced by recycling and reusing the lubricating oil, and the pollution risk to the environment is reduced.

[0038] The lubricating device further comprises a scraper 1410 and a filter plate 1411, the scraper 1410 is fixedly installed on the bottom of the push rod one 141, and the filter plate 1411 is fixedly installed on the bottom of the inner wall of the connecting ring 51. The impurities filtered on the filter plate 1411 are scraped off by moving the scraper 1410, so that the accumulated impurities can be removed in time, the filter holes of the filter plate 1411 remain unblocked, and the lubricating oil can be filtered in time and returned to the lubricating system.

[0039] One side of the push rod one 141 and the sliding door 145 close to each other is provided with an inclined surface, the oil suction pump 146 is electrically connected with the switch button one 148, and a spring two is arranged between the elastic telescopic rod 143 and the bottom of the fixed block 142. By arranging the inclined surface, it is ensured that the push rod one 141 can smoothly push the sliding door 145 when moving, by electrical connection, it is ensured that the switch button one 148 can control the start and stop of the oil suction pump 146, and by arranging the spring two, it is ensured that the elastic telescopic rod 143 can realize self-resetting.

[0040] The cooling device comprises a water suction pump 151, a water pipe 152, a push block 153 and a second switch button 154. The water suction pump 151 is fixedly installed at the bottom of the fixed block 142, the water pipe 152 is fixedly installed at the front of the water suction pump 151, the push block 153 is fixedly installed at the bottom of the push rod 141, and the second switch button 154 is slidingly installed at the top of the fixed block 142. The water suction pump 151 works to make the water flow in the water pipe 152, and the outer wall of the water pipe 152 is in contact with the lubricating oil. The continuous water flow can effectively reduce the temperature of the lubricating oil and keep it within the appropriate working temperature range, avoiding deterioration or loss of lubricating performance due to high temperature.

[0041] The water suction pump 151 is electrically connected with the second switch button 154, and the side of the push block 153 close to the second switch button 154 is provided with an inclined surface. The electrical connection ensures that the second switch button 154 can control the start and stop of the water suction pump 151, and the inclined surface ensures that the push block 153 can smoothly push the second switch button 154 when moving.

[0042] The cooling device further comprises a moving rod 155, a push plate 156, a second push rod 157 and an inclined block 158. The moving rod 155 is slidingly installed in the inner wall of the connecting ring 51, the push plate 156 is fixedly installed at the bottom of the moving rod 155, the second push rod 157 is fixedly installed at the top of the scraping rod 1410, and the inclined block 158 is fixedly installed at the top of the push plate 156. The moving rod 155 moves to drive the push plate 156 to start moving, and the movement of the push plate 156 stirs the lubricating oil, allowing the lubricating oil at different positions to fully contact the water-cooled heat dissipation surface, making heat transfer more efficient, thereby improving the heat dissipation efficiency of the entire lubricating oil cooling system.

[0043] The side of the second push rod 157 close to the inclined block 158 is provided with an inclined surface, and a third spring is arranged between the push plate 156 and the inner wall of the connecting ring 51. The inclined surface ensures that the second push rod 157 can smoothly push the inclined block 158 when moving, and the third spring ensures that the push plate 156 can be automatically reset.

[0044] In operation, when the sliding rod 9 moves, the push rod one 141 starts to move, the push rod one 141 moves to push the sliding door 145 to start to move, the sliding door 145 moves to open the oil outlet of the oil tank 144, after the oil outlet of the oil tank 144 is opened, the lubricating oil flows out through the oil outlet and contacts the output end of the rotating shaft 3 and the motor 2, which greatly reduces the friction, reduces the wear of the parts, enables smoother operation, prolongs the service life of the bearings, pump shafts and other key components, and prevents excessive wear caused by a large friction coefficient during high-speed rotation; when the sliding door 145 moves, the long rod 149 starts to move, the long rod 149 moves to push the switch button one 148 to move at the control end of the oil suction pump 146, so that the switch button one 148 starts the oil suction pump 146 to work, the oil suction pump 146 works to suck and separate the lubricating oil that falls from the rotating shaft 3 to the inner wall bottom of the connecting ring 51, and then the lubricating oil is recycled in the oil tank 144, recycling the lubricating oil can reduce the processing cost of the lubricating oil, and recycling the lubricating oil can reduce the emission of waste lubricating oil, thereby reducing the pollution risk to the environment; when the push rod one 141 moves, the scraper rod 1410 starts to move, the scraper rod 1410 moves to scrape off the impurities filtered on the filter plate 1411, through filtering, the impurities are removed to enable the lubricating oil to continue to effectively play a lubricating role, thereby prolonging the service life of the lubricating oil, reducing the replacement frequency of the lubricating oil, and reducing the operating cost, and when the scraper rod 1410 moves to scrape off the impurities filtered on the filter plate 1411, the accumulated impurities can be removed in time, the filter holes of the filter plate 1411 remain unobstructed, and it is ensured that the lubricating oil can be filtered in time and returned to the lubricating system.

[0045] When the sliding rod 9 moves, the push block 153 starts to move, the push block 153 moves to push the switch button two 154 to move at the control end of the water suction pump 151, so that the switch button two 154 starts the water suction pump 151 to work, and when the water suction pump 151 works, the water flow flows in the water pipe 152, the outer wall of the water pipe 152 contacts the lubricating oil, the water flow can effectively reduce the temperature of the lubricating oil by continuously flowing, so that the lubricating oil is kept within a suitable working temperature range, the lubricating oil is prevented from deteriorating or losing lubricating performance due to too high temperature, when the scraper rod 1410 moves, the push rod two 157 starts to move, the push rod two 157 moves to push the inclined block 158 to start to move, the inclined block 158 moves to drive the moving rod 155 to start to move, the moving rod 155 moves to drive the push plate 156 to start to move, and the push plate 156 moves to agitate the lubricating oil, so that the lubricating oil at different positions can fully contact the water-cooled heat dissipation surface, heat transfer is more efficient, and the heat dissipation efficiency of the entire lubricating oil cooling system is improved.

[0046] The above is only a preferred embodiment of the present application, and is not intended to limit the present application, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A horizontal centrifugal pump against medium particle accumulation wear, comprising a base (1), characterized in that: The base (1) top fixedly installed motor (2), the output end of motor (2) is fixedly installed with rotating shaft (3), the rotating shaft (3) away from motor (2) output end one end fixedly installed with rotating disc (4), the base (1) top fixedly installed with water suction tank (5), the water suction tank (5) right side fixedly installed with connecting ring (51), the water suction tank (5) inside is provided with filter device, the connecting ring (51) top is provided with lubricating device, the connecting ring (51) inside is provided with cooling device; Wherein, the filter device includes water inlet (6), water outlet (7), filter disc (8), slide rod (9), inclined block one (10), inclined block two (11), L-shaped rod (12) and sealing ring (13), the water inlet (6) is fixedly installed in water suction tank (5) left side, the water outlet (7) is fixedly installed in water suction tank (5) top, the filter disc (8) is fixedly installed in water inlet (6) inner wall, the slide rod (9) is slidably through filter disc (8), the inclined block one (10) is fixedly installed in slide rod (9) one end close to rotating shaft (3), the inclined block two (11) is fixedly installed in rotating shaft (3) one end close to slide rod (9), the L-shaped rod (12) is fixedly installed in slide rod (9) one end away from inclined block one (10), the sealing ring (13) is fixedly installed in L-shaped rod (12) one end away from slide rod (9); The lubricating device includes push rod one (141), fixed block (142), elastic telescopic rod (143), oil tank (144) and sliding door (145), the push rod one (141) is fixedly installed in slide rod (9) one end close to inclined block one (10), the fixed block (142) is fixedly installed in connecting ring (51) inner wall, the elastic telescopic rod (143) is slidably installed in fixed block (142) top, the oil tank (144) is fixedly installed in connecting ring (51) top, the sliding door (145) is fixedly installed in the movable end of elastic telescopic rod (143); The lubricating device further includes oil pump (146), oil pipe (147), switch button one (148) and long rod (149), the oil pump (146) is fixedly installed in oil tank (144) top, the oil pipe (147) is fixedly installed in front, the switch button one (148) is slidably installed in oil pump (146) bottom, the long rod (149) is fixedly installed in sliding door (145) top; The lubricating device further includes scraper (1410) and filter plate (1411), the scraper (1410) is fixedly installed in push rod one (141) bottom, the filter plate (1411) is fixedly installed in connecting ring (51) inner wall bottom; The cooling device includes a water suction pump (151), a water pipe (152), a push block (153) and a second switch button (154), the water suction pump (151) is fixedly installed at the bottom of the fixed block (142), the water pipe (152) is fixedly installed at the front of the water suction pump (151), the push block (153) is fixedly installed at the bottom of the push rod (141), and the second switch button (154) is slidingly installed at the top of the fixed block (142). The cooling device further includes a moving rod (155), a push plate (156), a second push rod (157) and an inclined block (158), the moving rod (155) is slidingly installed in the inner wall of the connecting ring (51), the push plate (156) is fixedly installed at the bottom of the moving rod (155), the second push rod (157) is fixedly installed at the top of the scraping rod (1410), and the inclined block (158) is fixedly installed at the top of the push plate (156).

2. A horizontal centrifugal pump according to claim 1, characterized in that: The side, where the inclined block one (10) and the inclined block two (11) are close to each other, is provided with an inclined surface, and a spring one is arranged between the sliding rod (9) and the filter disc (8).

3. A horizontal centrifugal pump according to claim 2, characterized in that: The side, where the push rod one (141) and the sliding door (145) are close to each other, is provided with an inclined surface, the oil suction pump (146) is electrically connected with the first switch button (148), and a spring two is arranged between the elastic telescopic rod (143) and the bottom of the fixed block (142).

4. A horizontal centrifugal pump according to claim 3, characterized in that: The water suction pump (151) is electrically connected with the second switch button (154), and the side, where the push block (153) and the second switch button (154) are close to each other, is provided with an inclined surface.

5. A horizontal centrifugal pump for preventing the accumulation of medium particles and abrasion, according to claim 4, characterized in that: The side, where the second push rod (157) and the inclined block (158) are close to each other, is provided with an inclined surface, and a spring three is arranged between the push plate (156) and the inner wall of the connecting ring (51).

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