A novel shaft seal structure for a single-casing slurry pump

Abstract

This invention discloses a novel shaft seal structure for a single-casing slurry pump, including a pump body and a filter assembly for cleaning mud and sand impurities from the shaft. The filter assembly includes a shaft, a housing, filter plates, and a water pump. The shaft is rotatably connected to the housing and the pump body, and the housing is fixedly connected to the pump body. A cavity is provided on the side wall of the housing, and multiple filter plates are fixedly connected within the cavity. A water pump is fixedly connected within the cavity, and a connecting pipe is fixedly connected to the water pump. The connecting pipe is fixedly connected to the housing. Shafts are symmetrically rotatably connected to both sides of the housing, and two drums are fixedly connected to each shaft. The two drums cooperate with each other and are connected to a belt drive. Multiple wiping plates are symmetrically fixedly connected to the upper and lower sides of the belt, and the wiping plates are in contact with the shaft. The shaft is connected to the wiping assembly, and the shaft is connected to a rubber sleeve assembly. This invention can quickly clean mud and sand from the shaft, preventing it from entering the pump body.

Description

Technical Field

[0001] This invention belongs to the field of slurry pump shaft seal technology, and particularly relates to a novel shaft seal structure for a single-casing slurry pump. Background Technology

[0002] The shaft seal of a slurry pump is a sealing device designed to prevent high-pressure liquid from leaking from the pump body or internal air from leaking into the pump body. It is mainly divided into three types: packing seal, impeller seal and mechanical seal. However, due to the working environment of the slurry pump, a large amount of mud and sand impurities often adhere to the shaft. When using the above shaft seal methods, mud and sand can still easily enter the pump body along the shaft, causing damage to the pump body. Now, a shaft seal structure that can prevent mud and sand from entering the pump body along the shaft is proposed. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a novel shaft seal structure for a single-casing slurry pump, solving the aforementioned problems.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a novel shaft seal structure for a single-casing slurry pump, comprising a pump body and a filter assembly for cleaning mud and sand impurities on the shaft; the filter assembly comprises a shaft, a housing, filter plates, and a water pump, wherein the shaft is rotatably connected to the housing and the pump body, the housing is fixedly connected to the pump body, a cavity is provided on the side wall of the housing, multiple filter plates are fixedly connected in the cavity, a water pump is fixedly connected in the cavity, a connecting pipe is fixedly connected to the water pump, the connecting pipe is fixedly connected to the housing, shafts are symmetrically rotatably connected to both sides of the housing, and drums are fixedly connected to the two shafts respectively, the two drums cooperate with each other and are connected to a belt drive, multiple wiping plates are symmetrically fixedly connected to the upper and lower sides of the belt, the wiping plates are in contact with the shaft, the shaft is connected to the scrubbing assembly, and the shaft is connected to a rubber sleeve assembly.

[0005] Based on the above technical solutions, the present invention also provides the following optional technical solutions:

[0006] Further technical solution: The scrubbing assembly includes a bevel gear A, a bevel gear B, a reciprocating screw A, and a connecting frame. The bevel gear A is fixedly connected to the shaft, and the bevel gear A is meshed with the bevel gear B. The reciprocating screw A is fixedly connected to the shaft center of the bevel gear B. The reciprocating screw A is rotatably connected to the housing, and the other end of the reciprocating screw A is rotatably connected to the connecting frame. The connecting frame is fixedly connected to the housing.

[0007] A further technical solution: A sliding sleeve is threaded onto the reciprocating lead screw A, and a cotton tube is rotatably connected to the sliding sleeve. The other end of the cotton tube is fixedly connected to the output shaft of the motor. The motor is slidably connected to a limiting rod. The two ends of the limiting rod are fixedly connected to the connecting frame and the housing, respectively. The cotton tube is connected to the protective component.

[0008] Further technical solution: The protective component includes a main gear, a secondary gear, guide rods, and a yarn bobbin. The main gear is fixedly connected to the cotton bobbin. Secondary gears are meshed with both sides of the main gear. The two secondary gears are fixedly connected to the two guide rods. The two guide rods are rotatably connected to the connecting frame. Yarn bobbins are fixedly connected to the two guide rods.

[0009] A further technical solution: any of the auxiliary gears meshes with the rack, the rack is fixedly connected to the sealing plate, the sealing plate is slidably connected to the slide rod, the slide rod is fixedly connected to the housing, a liquid storage box is fixedly connected to the connecting frame, and the bottom of the liquid storage box is provided with multiple mesh holes.

[0010] Further technical solution: The rubber sleeve assembly includes an internal gear, an external gear, a gear ring, and a rotating drum. The internal gear is fixedly connected to a shaft, and multiple external gears mesh with the internal gear. The gear ring meshes with the external gears and is fixedly connected to the inside of the rotating drum. The rotating drum is fixedly connected to the housing.

[0011] A further technical solution: A connecting rod is fixedly connected to the center of each of the external gear shafts, and a frame is fixedly connected to each of the connecting rods. A support rod is fixedly connected to one side of the frame, and a reciprocating screw is rotatably connected to the other side of the frame. A rubber sleeve is threaded onto the reciprocating screw, and the other side of the rubber sleeve is slidably connected to the support rod. The reciprocating screw is connected to an auxiliary component.

[0012] Further technical solution: The auxiliary component includes gears, gear rings, ring sleeves, and water pipes. Gears are fixedly connected to multiple reciprocating screws respectively. The gears are meshed with the gear rings, and the gear rings are fixedly connected to the ring sleeves. One end of the multiple water pipes is fixedly connected to the rotating drum, and the other end of the water pipes is fixedly connected to the ring sleeves. One end of the water pipes is provided with an interface.

[0013] A further technical solution: A connector is fixedly connected to multiple water pipes, and multiple nozzles are provided on the connectors so that water in the water pipes can flow out from the connectors. Multiple short shafts are rotatably connected to the ring A, and brush cylinders are fixedly connected to the multiple short shafts respectively. The brush cylinders are made of brushes with a certain hardness.

[0014] Beneficial effects

[0015] This invention provides a novel shaft seal structure for a single-casing slurry pump, which has the following advantages compared with the prior art:

[0016] 1. The user adds cleaning fluid into the housing through the injection hole, ensuring the fluid level is at the central axis of the shaft. This allows for thorough cleaning during shaft rotation. Simultaneously, the user can activate the motor connected to the shaft, causing the shaft to drive the fixedly connected drums. The two drums then work together to drive the belts connected to them, causing the fixedly connected wiping plates to rotate synchronously. Multiple wiping plates then reciprocate and scrape the shaft. Because the wiping plates are in close contact with the shaft, this effectively increases the cleaning effect on the shaft. The scraping effect prevents small particles of impurities from adhering to the shaft after wetting. The scraping plate can also be made of soft silicone to avoid scratches on the shaft and increase the tightness of the connection between the scraping plate and the shaft. Simultaneously, the user can start the water pump to draw cleaning fluid from inside the housing. The cleaning fluid is then drawn into the cavity of the housing through the inlet on the lower side wall. After being filtered through multiple layers of filter plates, the cleaning fluid is discharged through the connecting pipe. The filtration efficiency of the connecting pipe should increase sequentially to achieve multi-stage filtration and intercept small particles of impurities in the cleaning fluid.

[0017] 2. When the shaft rotates, the bevel gear A fixedly connected to it begins to rotate synchronously, driving the bevel gear B meshing with bevel gear A to rotate synchronously. Simultaneously, the reciprocating screw A fixedly connected to the shaft of bevel gear B begins to rotate synchronously, driving the sliding sleeve threaded onto the reciprocating screw A to begin linear reciprocating motion along the limit rod. At this time, the sliding sleeve drives the cotton cylinder, which is rotated on it, to begin uniformly rising and falling. When the sliding sleeve moves to the end of the reciprocating screw A, the wiping plate begins to contact the cotton cylinder synchronously. At this point, the motor is started, causing the motor to drive the cotton cylinder fixedly connected to its output shaft to rotate synchronously. The rotation of the cotton cylinder cleans the wiping plate, scraping the particles and impurities removed from the shaft onto the cotton cylinder. Simultaneously, when the sliding sleeve moves to the end of the reciprocating screw A, the continued rotation of the reciprocating screw A quickly changes the direction of the sliding sleeve's movement, causing the cotton cylinder to rise at a uniform speed to avoid jamming the wiping plate and preventing it from continuing to rotate. At the same time, when the cotton cylinder rotates, the main gear fixedly connected to it begins to rotate synchronously. During the upward reset process, the sliding sleeve drives the main gear to mesh with the secondary gear, causing the two secondary gears to rotate synchronously in cooperation with the meshing main gear. This causes the guide rod fixedly connected to the shaft of the secondary gear to rotate, and the yarn tube on the fixedly connected guide rod rotates synchronously. During its rotation, the blocking plate used to seal the bottom mesh of the liquid storage box is displaced, allowing water in the liquid storage box to flow out onto the yarn tube. At this time, the two yarn tubes can intermittently spray water on their contact parts to increase the cleaning effect and remove particulate impurities attached to the sealing plate. At the same time, the rotation of the secondary gear can drive the rack meshing with it, causing the rack to drive the sealing plate fixedly connected to it to start linear reciprocating motion along its connection with the sliding rod. This causes the sealing plate to seal the through groove on the shaft where the cotton tube enters the housing, thus preventing impurities on the cotton tube from falling back into the housing after washing and causing re-contamination of the shaft. This allows the cotton tube to circulate and clean multiple wiping plates.

[0018] 3. When the shaft rotates, the internal gear fixedly connected to it rotates synchronously. At this time, the internal gear begins to drive the multiple external gears meshing with it to rotate synchronously. These external gears, in conjunction with the gear rings meshing with them, begin to revolve around the internal gear while rotating on their own axes. Simultaneously, the connecting rods fixedly connected to the shafts of the external gears begin to rotate synchronously, causing the frame fixedly connected to them to rotate synchronously. This allows the rubber sleeve to wipe the shaft during the frame's rotation, removing the attached mud and preventing a large amount of mud from entering the housing. Simultaneously, during the frame's revolution, it drives the gears to periodically mesh with the gear rings, thus... The wheel begins to rotate in conjunction with the gear ring it meshes with, which in turn drives the reciprocating screw fixedly connected to its shaft to rotate synchronously. At this time, the reciprocating screw drives the rubber sleeve connected to its thread to begin linear reciprocating motion along the connection between it and the support rod, so that the rubber sleeve begins to circulate and wipe the shaft as a whole. At the same time, the user can connect the water pipe to the drain valve, so that water flows into the water pipe and flows out from the connector. The spray nozzle moves to the vicinity of the rubber sleeve to rinse and wet the rubber sleeve, so that the rubber sleeve wipes the shaft in a wet state. At the same time, during the rotation of the shaft, it can come into contact with the brush, so that the brush can clean the impurities on its surface. Attached Figure Description

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0020] Figure 2 This is an enlarged cross-sectional view of the present invention.

[0021] Figure 3 This is an enlarged cross-sectional view of the present invention.

[0022] Figure 4 This is a schematic cross-sectional view of the overall structure of the present invention.

[0023] Figure 5 This is an enlarged schematic diagram of the transmission structure of the present invention.

[0024] Figure 6 This is a side view of the transmission structure of the present invention.

[0025] Figure 7 This is a schematic diagram of the overall structure of the present invention.

[0026] Figure 8 This is an enlarged schematic diagram of the gear structure of the present invention.

[0027] Figure reference numerals: Pump body 101, Filter washing assembly 2, Scrubbing assembly 3, Protective assembly 4, Rubber sleeve assembly 5, Auxiliary assembly 6, Shaft 201, Housing 202, Filter plate 203, Water pump 204, Connecting pipe 205, Scrubbing plate 206, Belt 207, Drum 208, Shaft 209, Bevel gear A301, Bevel gear B302, Reciprocating screw A303, Connecting frame 304, Sliding sleeve 305, Cotton sleeve 306, Motor 307, Limiting rod 308, Main gear 4 01. Secondary gear 402. Guide rod 403. Yarn tube 404. Rack 405. Sealing plate 406. Slide rod 407. Liquid storage box 408. Internal gear 501. External gear 502. Gear ring 503. Rotary drum 504. Connecting rod 505. Frame 504. Support rod 507. Reciprocating screw 508. Rubber tube 509. Gear 601. Gear ring 602. Ring sleeve 603. Water pipe 604. Ring sleeve A 605. Connector 606. Brush tube 607. Short shaft 608. Detailed Implementation

[0028] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0029] The specific implementation of the present invention will be described in detail below with reference to specific embodiments.

[0030] Please see Figure 1 , Figure 2 as well as Figure 3 A novel shaft seal structure for a single-casing slurry pump, provided in one embodiment of the present invention, includes a pump body 101 and further includes:

[0031] Filter washing assembly 2 is used to clean mud and sand impurities on the shaft;

[0032] The filter assembly 2 includes a shaft 201, a housing 202, filter plates 203, and a water pump 204. The shaft 201 is rotatably connected to the housing 202 and to the pump body 101. The housing 202 is fixedly connected to the pump body 101. A cavity is provided on the side wall of the housing 202, and multiple filter plates 203 are fixedly connected to the cavity. The water pump 204 is fixedly connected to the cavity, and a connecting pipe 205 is fixedly connected to the water pump 204. The connecting pipe 205 is fixedly connected to the housing 202. Shafts 209 are symmetrically rotatably connected to both sides of the housing 202. Rollers 208 are fixedly connected to the two shafts 209 respectively. The two rollers 208 cooperate with each other and are connected to the belt 207 for transmission. Multiple wiping plates 206 are symmetrically fixedly connected to the upper and lower sides of the belt 207. The wiping plates 206 are in contact with the shaft 201. The shafts 209 are connected to the wiping assembly 3. The shaft 201 is connected to the rubber sleeve assembly 5.

[0033] In this embodiment of the invention, the user adds cleaning fluid into the housing 202 through the injection hole on the housing 202, so that the liquid level is at the central axis of the shaft 201, so that the shaft 201 can be thoroughly cleaned when it rotates. Simultaneously, when the shaft 201 rotates, the user can start the motor connected to the shaft 209, causing the shaft 209 to drive the fixedly connected drum 208 to rotate. At this time, the two drums 208 cooperate to drive the belt 207 connected to them to rotate, causing the fixedly connected wiping plates 206 to rotate synchronously. Multiple wiping plates 206 then reciprocate to scrape the shaft 201. Since the wiping plates 206 are in close contact with the shaft 201, they can effectively... To enhance the cleaning effect on the shaft 201, small particles of impurities are prevented from adhering to the shaft 201 after wetting. The wiping plate 206 can also be made of soft silicone to avoid scratches on the shaft 201 and increase the tightness of the connection between the wiping plate 206 and the shaft 201. Simultaneously, the user can start the water pump 204, which draws the cleaning fluid from the housing 202. The cleaning fluid is then drawn into the cavity of the housing 202 through the inlet on the lower side wall of the housing 202. After being filtered through multiple layers of filter plates 203, the cleaning fluid is discharged through the connecting pipe 205. The filtration effect of the connecting pipe 205 should increase sequentially to achieve multi-stage filtration and intercept small particles of impurities in the cleaning fluid.

[0034] Please see Figure 3 , Figure 4 , Figure 5 as well as Figure 6 As an embodiment of the present invention, specifically, the scrubbing assembly 3 includes a bevel gear A301, a bevel gear B302, a reciprocating screw A303, and a connecting frame 304. The bevel gear A301 is fixedly connected to the shaft 209. The bevel gear A301 meshes with the bevel gear B302. The reciprocating screw A303 is fixedly connected to the shaft center of the bevel gear B302. The reciprocating screw A303 is rotatably connected to the housing 202. The other end of the reciprocating screw A303 is rotatably connected to the connecting frame 304. The connecting frame 304 is fixedly connected to the housing 202.

[0035] Specifically, a sliding sleeve 305 is threaded onto the reciprocating lead screw A303, and a cotton cylinder 306 is rotatably connected to the sliding sleeve 305. The other end of the cotton cylinder 306 is fixedly connected to the output shaft of the motor 307. The motor 307 is slidably connected to the limiting rod 308. The two ends of the limiting rod 308 are fixedly connected to the connecting frame 304 and the housing 202, respectively. The cotton cylinder 306 is connected to the protective component 4.

[0036] Specifically, the protective component 4 includes a main gear 401, a secondary gear 402, a guide rod 403, and a yarn tube 404. The main gear 401 is fixedly connected to the cotton tube 306. The secondary gears 402 are meshed and connected to both sides of the main gear 401. The two secondary gears 402 are fixedly connected to the two guide rods 403. The two guide rods 403 are rotatably connected to the connecting frame 304. The yarn tubes 404 are fixedly connected to the two guide rods 403.

[0037] Specifically, any of the auxiliary gears 402 is meshed with the rack 405, the rack 405 is fixedly connected to the sealing plate 406, the sealing plate 406 is slidably connected to the slide rod 407, the slide rod 407 is fixedly connected to the housing 202, and a liquid storage box 408 is fixedly connected to the connecting frame 304. The bottom of the liquid storage box 408 is provided with multiple mesh holes.

[0038] In this embodiment of the invention, when the shaft 209 rotates, the bevel gear A301 fixedly connected to it begins to rotate synchronously, driving the bevel gear B302 meshing with the bevel gear A301 to rotate synchronously. Simultaneously, the reciprocating screw A303 fixedly connected to the shaft of the bevel gear B302 begins to rotate synchronously, driving the sliding sleeve 305 threadedly connected to the reciprocating screw A303 to begin linear reciprocating motion along the limiting rod 308. At this time, the sliding sleeve 305 drives the cotton cylinder 306 rotatably connected to it to begin uniformly lifting and lowering motion. When the sliding sleeve 305 moves to the end of the reciprocating screw A303, the wiping plate 206 begins to contact the cotton cylinder 306 synchronously. The motor 307 is started, causing the cotton cylinder 306, which is fixedly connected to its output shaft, to rotate synchronously. The rotation of the cotton cylinder 306 cleans the wiping plate 206, scraping away particles and impurities removed from the shaft 201 onto the cotton cylinder 306. Simultaneously, when the sliding sleeve 305 reaches the end of the reciprocating screw A303, the screw continues to rotate in the same direction, rapidly changing the direction of movement of the sliding sleeve 305. This causes the cotton cylinder 306 to rise at a constant speed, preventing it from jamming the wiping plate 206 and preventing it from continuing to rotate. At the same time, as the cotton cylinder 306 rotates, the main gear 401 fixedly connected to it begins to move synchronously. As the slide sleeve 305 rotates, it drives the main gear 401 to mesh with the secondary gear 402 during the upward reset process. This causes the two secondary gears 402 to rotate synchronously with the meshing main gear 401, which in turn causes the guide rod 403 fixedly connected to the shaft of the secondary gear 402 to rotate. At this time, the yarn bobbin 404 on the fixedly connected guide rod 403 rotates synchronously, and during its rotation, the blocking plate used to seal the bottom mesh of the liquid storage box 408 is displaced, allowing water in the liquid storage box 408 to flow out onto the yarn bobbin 404. At this time, the two yarn bobbins 404 can intermittently discharge water into the cotton bobbin 306 during the wiping process. Water is sprayed on the contact area to enhance the cleaning effect and remove particulate impurities attached to the sealing plate 406. At the same time, during the rotation of the secondary gear 402, it can drive the rack 405 that meshes with it, so that the rack 405 starts to drive the sealing plate 406 that is fixedly connected to it to start to move linearly back and forth along the connection between it and the slide rod 407. This allows the sealing plate 406 to seal the through groove on the shaft 201 where the cotton tube 306 enters the housing 202, thereby preventing impurities on the cotton tube 306 from falling back into the housing 202 after washing and causing contamination to the shaft 201 again. This allows the cotton tube 306 to circulate and wipe the multiple wiping plates 206 for cleaning.

[0039] Please see Figure 7 as well as Figure 8As an embodiment of the present invention, specifically, the rubber sleeve assembly 5 includes an internal gear 501, an external gear 502, a gear ring 503, and a rotating drum 504. The internal gear 501 is fixedly connected to the shaft 201, and a plurality of external gears 502 are meshed with the internal gear 501. The gear ring 503 is meshed with the external gears 502 and is fixedly connected to the inner side of the rotating drum 504. The rotating drum 504 is fixedly connected to the housing 202.

[0040] Specifically, a connecting rod 505 is fixedly connected to the shaft center of each of the multiple external gears 502, and a frame 504 is fixedly connected to each of the multiple connecting rods 505. A support rod 507 is fixedly connected to one side of the frame 504, and a reciprocating screw 508 is rotatably connected to the other side of the frame 504. A rubber sleeve 509 is threadedly connected to the reciprocating screw 508, and the other side of the rubber sleeve 509 is slidably connected to the support rod 507. The reciprocating screw 508 is connected to the auxiliary component 6.

[0041] Specifically, the auxiliary component 6 includes a gear 601, a gear ring 602, a ring sleeve 603, and a water pipe 604. A gear 601 is fixedly connected to a plurality of reciprocating lead screws 508. The gear 601 is meshed with the gear ring 602. The gear ring 602 is fixedly connected to the ring sleeve 603. One end of the plurality of water pipes 604 is fixedly connected to the rotating drum 504, and the other end of the water pipe 604 is fixedly connected to the ring sleeve 603. One end of the water pipe 604 is provided with an interface.

[0042] Specifically, multiple water pipes 604 are fixedly connected to connectors 606, and multiple nozzles are provided on the connectors 606 so that water in the water pipes 604 can flow out from the connectors 606. Multiple short shafts 608 are rotatably connected to the ring sleeve A605, and brush cylinders 607 are fixedly connected to the multiple short shafts 608 respectively. The brush cylinders 607 are made of brushes with a certain hardness.

[0043] In this embodiment of the invention, when the shaft 201 rotates, the internal gear 501 fixedly connected to it rotates synchronously. At this time, the internal gear 501 begins to drive the multiple external gears 502 meshing with it to rotate synchronously, and the multiple external gears 502, in cooperation with the gear ring 503 meshing with them, begin to revolve around the internal gear 501 while rotating on their own axis. At this time, the connecting rod 505 fixedly connected to the axis of the multiple external gears 502 begins to rotate synchronously, and causes the frame 504 fixedly connected to it to rotate synchronously. As a result, the rubber sleeve 509 begins to wipe the shaft 201 during the rotation of the frame 504 to remove the mud attached to it and prevent a large amount of mud from entering the housing 202. At the same time, during the revolution of the frame 504, it can drive the gear 601 to periodically mesh with the gear ring 602, thereby... The gear 601 begins to rotate in cooperation with the gear ring 602, which meshes with it, and drives the reciprocating screw 508 fixedly connected to its shaft to rotate synchronously. At this time, the reciprocating screw 508 drives the rubber sleeve 509 connected to it to begin linear reciprocating motion along the connection between it and the support rod 507, so that the rubber sleeve 509 begins to circulate and wipe the shaft 201. At the same time, the user can connect the water pipe 604 to the drain valve, so that water flows into the water pipe 604 and flows out from the connector 606. The spray nozzle moves to the vicinity of the rubber sleeve 509 to rinse and wet the rubber sleeve 509, so that the rubber sleeve 509 wipes the shaft 201 in a wet state. At the same time, during the rotation of the shaft 209, it can come into contact with the brush cylinder 607, so that the brush cylinder 607 can clean the impurities on its surface.

[0044] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0045] The term "fixed connection" as used in this application refers to a connection in which parts or components are fixed without any relative movement. This includes both detachable and non-detachable connections.

[0046] (1) Detachable connection: The components are fixed together using screws, splines, wedges, etc. This type of connection can be disassembled during maintenance without damaging the parts. However, the specifications of the connecting parts used must be correct (such as the length of the bolts, keys, wedges) and properly tightened.

[0047] (2) Non-removable connections: These mainly refer to welding, riveting, and tenon joints. Since disassembly requires forging, sawing, or oxyacetylene cutting for repair or replacement, the parts generally cannot be reused. At the same time, attention should be paid to process quality, technical inspection, and remedial measures (such as correction and polishing) during connection.

[0048] The sliding connection referred to in this application means that the component can slide along a linear trajectory, and the hinge referred to in this application means that the component can rotate along an axial constraint.

[0049] In some cases, the sliding connection and hinge referred to in this application may also be damped, enabling the component to maintain in the desired position.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A shaft seal structure for a single-casing slurry pump, comprising a pump body (101), characterized in that, Also includes: The filter washing assembly (2) is used to clean mud and sand impurities on the shaft; The filter assembly (2) includes a shaft (201), a housing (202), filter plates (203), and a water pump (204). The shaft (201) is rotatably connected to the housing (202) and rotatably connected to the pump body (101). The housing (202) is fixedly connected to the pump body (101). The side wall of the housing (202) is provided with a cavity, in which multiple filter plates (203) are fixedly connected. The water pump (204) is fixedly connected in the cavity. A connecting pipe (205) is fixedly connected to the water pump (204), and the connecting pipe (205) is fixedly connected to the housing (202). Shafts (204) are symmetrically rotatably connected to both sides of the housing (202). 9) Two rollers (208) are fixedly connected to the two shafts (209) respectively. The two rollers (208) cooperate with each other and are connected to the belt (207) for transmission. Multiple wiping plates (206) are symmetrically fixedly connected to the upper and lower sides of the belt (207). The wiping plates (206) are in contact with the shaft (201). The shaft (209) is connected to the wiping assembly (3). The shaft (201) is connected to the rubber sleeve assembly (5). The rubber sleeve assembly (5) includes an internal gear (501), an external gear (502), a first gear ring (503), and a rotating drum (504). The internal gear (501) is fixedly connected to the shaft (201). Multiple external gears (502) are connected to the internal gear. (501) Meshing connection: The first gear ring (503) meshes with the external gear (502). The first gear ring (503) is fixedly connected to the inner side of the rotating drum (504). The rotating drum (504) is fixedly connected to the housing (202). Connecting rods (505) are fixedly connected to the shafts of the multiple external gears (502). Frames (506) are fixedly connected to the multiple connecting rods (505). A support rod (507) is fixedly connected to one side of the frame (506). A reciprocating screw (508) is rotatably connected to the other side of the frame (506). A rubber sleeve (509) is threaded onto the reciprocating screw (508). The other side of the rubber sleeve (509)... The side-sliding connection is on the support rod (507). The reciprocating screw (508) is connected to the auxiliary component (6). The auxiliary component (6) includes a gear (601), a second gear ring (602), a ring sleeve (603), and a water pipe (604). A gear (601) is fixedly connected to a plurality of reciprocating screws (508). The gear (601) is meshed with the second gear ring (602). The second gear ring (602) is fixedly connected to the ring sleeve (603). One end of a plurality of water pipes (604) is fixedly connected to the rotating drum (504). The other end of the water pipe (604) is fixedly connected to the ring sleeve (603). One end of the water pipe (604) is provided with an interface.

2. The shaft seal structure of the single-casing slurry pump according to claim 1, characterized in that, The scrubbing assembly (3) includes a bevel gear A (301), a bevel gear B (302), a reciprocating screw A (303), and a connecting frame (304). The bevel gear A (301) is fixedly connected to the shaft (209). The bevel gear A (301) meshes with the bevel gear B (302). The reciprocating screw A (303) is fixedly connected to the shaft of the bevel gear B (302). The reciprocating screw A (303) is rotatably connected to the housing (202). The other end of the reciprocating screw A (303) is rotatably connected to the connecting frame (304). The connecting frame (304) is fixedly connected to the housing (202).

3. The shaft seal structure of the single-casing slurry pump according to claim 2, characterized in that, The reciprocating screw A (303) is threaded with a sliding sleeve (305), and a cotton tube (306) is rotatably connected to the sliding sleeve (305). The other end of the cotton tube (306) is fixedly connected to the output shaft of the motor (307). The motor (307) is slidably connected to the limiting rod (308). The two ends of the limiting rod (308) are fixedly connected to the connecting frame (304) and the housing (202) respectively. The cotton tube (306) is connected to the protective component (4).

4. The shaft seal structure of the single-casing slurry pump according to claim 3, characterized in that, The protective component (4) includes a main gear (401), a secondary gear (402), a guide rod (403), and a yarn bobbin (404). The main gear (401) is fixedly connected to the cotton bobbin (306). The secondary gears (402) are meshed and connected to both sides of the main gear (401). The two secondary gears (402) are fixedly connected to the two guide rods (403). The two guide rods (403) are rotatably connected to the connecting frame (304). The yarn bobbins (404) are fixedly connected to the two guide rods (403).

5. The shaft seal structure of the single-casing slurry pump according to claim 4, characterized in that, Any of the aforementioned secondary gears (402) is meshed with a rack (405), the rack (405) is fixedly connected to a sealing plate (406), the sealing plate (406) is slidably connected to a slide rod (407), the slide rod (407) is fixedly connected to a housing (202), a liquid storage box (408) is fixedly connected to a connecting frame (304), and the bottom of the liquid storage box (408) is provided with multiple mesh holes.

6. The shaft seal structure of the single-casing slurry pump according to claim 1, characterized in that, A connector (606) is fixedly connected to a plurality of water pipes (604). A plurality of nozzles are provided on the connector (606) so that water in the water pipes (604) can flow out from the connector (606). A plurality of short shafts (608) are rotatably connected to the ring sleeve A (605). A brush cylinder (607) is fixedly connected to each of the plurality of short shafts (608). The brush cylinder (607) is made of a brush with a certain hardness.

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