Heavy slurry pump shell adopting replaceable structure

Abstract

The invention belongs to the technical field of heavy slurry pumps, and particularly relates to a heavy slurry pump shell adopting a replaceable structure, the heavy slurry pump shell comprises a base and a rotating mechanism, the rotating mechanism is arranged above the base and comprises a connector, a rotating bearing, a rotating ring and a pump shaft, and the output end of the pump shaft is provided with a pressure reducing sleeve and an impeller; the pump further comprises a pump shell assembly and a protection assembly, the pump shell assembly comprises a pump body and a pump cover which are detachably connected through a locking mechanism, and the protection assembly comprises a rear protection plate and a front protection plate which are detachably connected through a fastener. The pressure reduction sleeve is connected with the pump body and the rear protection plate in a clamped mode, the protection assembly and the pump shell assembly are fixed through the locking mechanism and the fastener, the internal structure can be rapidly disassembled and assembled, the internal structure can be conveniently and independently replaced, the maintenance cost can be effectively reduced, and the working efficiency can be effectively improved. And meanwhile, by replacing the internal structure, the aging of the equipment can be effectively delayed.

Description

Technical Field

[0001] The invention belongs to the technical field of heavy-duty slurry pumps, and in particular relates to a heavy-duty slurry pump casing with a replaceable structure. Background Art

[0002] A slurry pump is a centrifugal pump that can transport slurries containing larger impurities or granular abrasive and corrosive impurities. It is mainly used in metallurgy, petrochemicals, mining, coal mining, building materials, light industry, papermaking and other industries to transport slurries containing both particles and corrosiveness. The transmission form of a horizontal slurry pump is mainly bracket transmission. The motor end can adopt a variety of connection methods such as couplings, pulleys or adding hydraulic couplings. The front end of the bracket can fully support the flow components at the pump end. The bracket structure is suitable for series or parallel connection of single-stage pumps and multi-stage pumps.

[0003] In modern industry, with the acceleration of industrialization, heavy-duty slurry pumps, as an important medium conveying equipment, are widely used in many industries such as mining, electricity, metallurgy, etc. This type of pump is mainly used to convey liquids containing solid particles, and the working environment it is subjected to is usually harsh.

[0004] Traditional heavy-duty slurry pump housings often experience varying degrees of wear and damage during long-term use due to their complex structure and harsh operating environment, which requires frequent maintenance and replacement of parts. The existing pump housing connection method makes it more difficult to replace the structure, and the internal structure cannot be replaced separately. When replacing the structure, the operation is more troublesome, resulting in longer downtime, which in turn affects work efficiency. Summary of the invention

[0005] The purpose of the present invention is to provide a heavy-duty slurry pump housing with a replaceable structure, which can replace the internal structure separately, effectively reduce maintenance costs, reduce equipment downtime, and improve the overall working efficiency of the pump. At the same time, by replacing the internal wear parts, it can also effectively prevent the reduction of production efficiency due to wear. By achieving the separate replacement of the internal structure, the aging of the equipment can be effectively delayed.

[0006] The technical solution adopted by the present invention is as follows:

[0007] A heavy-duty slurry pump housing with a replaceable structure comprises a base and a rotating mechanism, wherein the rotating mechanism is arranged above the base and comprises a connector, a rotating bearing, a rotating ring and a pump shaft, and a pressure reducing sleeve and an impeller are arranged at the output end of the pump shaft;

[0008] It also includes a pump housing assembly, the pump housing assembly including a pump body snap-connected to the decompression sleeve, and a pump cover detachably connected to the pump body via a fastener;

[0009] A protection assembly, the protection assembly comprising a rear guard plate detachably connected to the decompression sleeve, the rear guard plate being detachably connected to a front guard plate;

[0010] A locking mechanism, the locking mechanism comprising a locking cylinder disposed on the rear guard plate, and a locking pin fixedly disposed on the front guard plate;

[0011] Among them, by arranging the pressure reducing sleeve on the pump shaft, by snap-connecting the pump body with the pressure reducing sleeve, and snap-connecting the pressure reducing sleeve with the rear guard plate, and fixing the protection assembly and the pump casing assembly respectively by the locking mechanism and the fastener, the internal structure can be quickly disassembled and installed, which is convenient for partial replacement of the internal structure, reducing maintenance costs, reducing equipment downtime, and improving resource utilization.

[0012] Furthermore, the connector is fixed above the base, the rotating bearing is fixed inside the connector, and the rotating bearing and the rotating ring are fixedly sleeved on the outside of the pump shaft, and the connecting end of the pump shaft is fixedly connected to the output end of the output motor.

[0013] Furthermore, the pressure reducing sleeve is arranged on the outside of the rotating ring, and a limiting groove is opened on one end side of the pressure reducing sleeve close to the pump body, and a limiting buckle is fixedly provided on the other side of the pressure reducing sleeve, and the limiting groove and the limiting buckle are opened along the center array of the pressure reducing sleeve.

[0014] Furthermore, a placement cavity is formed at the connection between the pump body and the pump cover, the protection component is placed in the placement cavity, a protection outlet is provided above the placement cavity, and a protection inlet is opened on the pump cover, and the protection inlet is communicated with the placement cavity;

[0015] Wherein, the protection outlet and the protection inlet are both fixedly provided with connection flanges, which are fixedly connected to the slurry inlet pipe and the slurry outlet pipe through the connection flanges, thereby ensuring the safety and stability of the slurry pump's transportation.

[0016] Furthermore, a limit pin is fixedly provided on the pump body, and the limit pin is snap-connected with the limit groove. A fixing groove is opened on the pump body, and a fixed motor is arranged in the fixing groove, and an output end of the fixed motor is slidably connected with the rear guard plate.

[0017] Furthermore, a sliding hole and a limiting protrusion are provided on the rear guard plate, the limiting protrusion is connected to the limiting buckle by snapping, and the position of the sliding hole corresponds to the fixed motor output end, and the sliding hole and the fixed motor output end are used in conjunction to further fix and limit the pump body and the rear guard plate.

[0018] Furthermore, the rear guard plate is connected to the front guard plate to form a protection cavity, the impeller is located in the protection cavity, and an exhaust port is opened above the protection cavity, the exhaust port corresponds to the protection outlet, and an entrance port is opened on the rear guard plate, an entrance sealer is provided at the entrance port, and the entrance sealer is located in the protection entrance and fixedly connected to the entrance end of the protection entrance.

[0019] Furthermore, a locking slot is provided in the locking cylinder, and the locking slot is used in conjunction with the locking pin.

[0020] Furthermore, the locking pin includes a locking slide bar slidably connected to the locking slot, the locking slide bar is rotatably disposed at the output end of the locking drive rod, and a locking protrusion is fixedly provided on the locking slide bar.

[0021] Furthermore, a replacement structure method is provided, which is applied to the above-mentioned heavy-duty slurry pump casing with a replaceable structure;

[0022] Step 1: By fixing the connector on the top of the base, the rotating bearing can effectively drive the pump shaft to rotate, thereby driving the rotating ring sleeved on the outside of the pump shaft;

[0023] Step 2: The pump body is arranged outside the pump shaft, and then the decompression sleeve is arranged outside the rotating ring and fixed with the pump body by clamping, and then the rear guard plate is clamped with the decompression sleeve, and the pump body, the decompression sleeve and the rear guard plate can be further fixed by starting the fixing motor so that the output end thereof is matched with the sliding hole on the rear guard plate, and vice versa, the rear guard plate, the decompression sleeve and the pump body can be replaced;

[0024] Step 3: The impeller is fixedly connected to the pump shaft, and the rear guard plate and the front guard plate are quickly removed through the locking mechanism, so that the protection assembly forms a protection cavity to protect the impeller, thereby ensuring the stable operation of the impeller. The front guard plate and the impeller can be replaced by quickly disassembling the locking mechanism;

[0025] Step 4: Connect the entry sealer to the entry port on the front guard plate, and then connect the pump cover to the pump body through fasteners to form the overall structure of the pump. By quickly disassembling the fasteners, the pump cover and the entry sealer can be quickly replaced.

[0026] The technical effects achieved by the present invention are:

[0027] The heavy-duty slurry pump housing with a replaceable structure of the present invention can effectively solve the problem of disassembling the entire machine during maintenance of traditional pumps by setting the pump body into a component structure, thereby reducing maintenance costs. The working performance of the pump will be affected after the pump housing or internal pump body structural components are worn. By quickly replacing the worn parts, not only can the normal performance of the pump be restored, but also the reduction in production efficiency due to wear can be prevented, while the service life of the pump can be extended.

[0028] The heavy-duty slurry pump housing with a replaceable structure of the present invention can effectively fix the rear guard plate and the front guard plate through a locking mechanism, ensuring the rapid and safe replacement of the structure. At the same time, the protective component can be effectively fixed through the locking mechanism to ensure the sealing when the working chamber is formed. At the same time, the internal structure of the pump can be partially replaced, effectively delaying the aging of the equipment. When replacing worn parts, only partial materials need to be replaced instead of the entire equipment, which can reduce the generation of industrial waste and improve the utilization rate of resources.

[0029] The heavy-duty slurry pump housing with a replaceable structure of the present invention is connected to the pump body and the rear guard plate by a pressure reducing sleeve, which can effectively determine the position of the pump body and the rear guard plate, ensuring the stability of the pump when in use. At the same time, by opening a placement groove on the pump body and placing a fixed motor to cooperate with the sliding hole on the rear guard plate, the rear guard plate can be made more stable during assembly, ensuring that the formed protective cavity can effectively protect and place the impeller and the rotating mechanism. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0031] Figure 2 It is a cross-sectional view of the overall structure of the present invention;

[0032] Figure 3 It is an exploded schematic diagram of the overall structure of the present invention;

[0033] Figure 4 It is a schematic diagram of the base and the rotating mechanism structure of the present invention;

[0034] Figure 5 It is a schematic diagram of the explosion of the local structure of the present invention;

[0035] Figure 6 It is a partial structural cross-sectional view of the present invention;

[0036] Figure 7 It is a schematic diagram of the structure of the pump housing assembly of the present invention;

[0037] Figure 8 It is a schematic diagram of the structure of the protection component of the present invention;

[0038] Fig. 9 It is a schematic diagram of the structure of the pump housing assembly and the protection assembly of the present invention;

[0039] Fig.10 It is a structural schematic diagram of the locking mechanism of the present invention.

[0040] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0041] 10. Base;

[0042] 20. Rotating mechanism; 21. Connector; 22. Rotating bearing; 23. Rotating ring; 24. Pump shaft; 25. Pressure reducing sleeve; 251. Limiting groove; 252. Limiting buckle; 26. Impeller;

[0043] 30. Pump casing assembly; 31. Pump body; 311. Limit pin; 312. Fixing groove; 313. Fixing motor; 32. Pump cover; 33. Placement cavity; 34. Protective outlet; 35. Protective inlet; 36. Connecting flange;

[0044] 40. protection assembly; 41. rear guard plate; 411. sliding hole; 412. stopper protrusion; 42. front guard plate; 43. protection cavity; 44. discharge port; 45. inlet port; 46. inlet sealer;

[0045] 50, locking mechanism; 51, locking cylinder; 511, locking slot; 52, locking pin; 521, locking slide rod; 522, locking drive rod; 523, locking protrusion;

[0046] 60. Fasteners. DETAILED DESCRIPTION

[0047] In order to make the purpose and advantages of the present invention more clearly understood, the present invention is specifically described below in conjunction with embodiments. It should be understood that the following text is only used to describe one or several specific embodiments of the present invention, and does not strictly limit the scope of protection of the specific claims of the present invention.

[0048] like Figure 1-Figure 10 As shown, a heavy-duty slurry pump housing with a replaceable structure includes a base 10 and a rotating mechanism 20. The rotating mechanism 20 is arranged above the base 10, and the rotating mechanism 20 includes a connector 21, a rotating bearing 22, a rotating ring 23 and a pump shaft 24. The output end of the pump shaft 24 is provided with a decompression sleeve 25 and an impeller 26;

[0049] The pump housing assembly 30 includes a pump body 31 connected to the pressure reducing sleeve 25 by snapping, and a pump cover 32 detachably connected to the pump body 31 by a fastener 60;

[0050] A protection assembly 40, the protection assembly 40 comprises a rear guard plate 41 detachably connected to the decompression sleeve 25, and the rear guard plate 41 is detachably connected to the front guard plate 42;

[0051] The locking mechanism 50 includes a locking cylinder 51 disposed on the rear guard plate 41 and a locking pin 52 fixedly disposed on the front guard plate 42;

[0052] Among them, by arranging the pressure reducing sleeve 25 on the pump shaft 24, by clamping the pump body 31 and the pressure reducing sleeve 25, and by clamping the pressure reducing sleeve 25 and the rear guard plate 41, and fixing the protection component 40 and the pump casing component 30 respectively by the locking mechanism 50 and the fastener 60, the internal structure can be quickly disassembled and installed, which is convenient for partial replacement of the internal structure, reducing maintenance costs, reducing equipment downtime, and improving resource utilization.

[0053] It should be noted that the pump body 31 and the pump cover 32 are provided with corresponding fastening holes for placing fasteners 60, wherein the fasteners 60 are commonly used fixing bolts and fixing nuts. Through the action of the fasteners 60, the use of the pump housing assembly 30 can be more stable, and the protection assembly 40 can be stably fixed to ensure stability during slurry transportation. It has the ability to be quickly disassembled and replaced, which improves maintenance efficiency and reduces operating costs.

[0054] In this embodiment, the base 10 serves as the basic supporting component of the entire pump structure, ensuring that the pump is stably placed in the operating environment and can effectively perform stability and safety during operation. The rotating mechanism 20 enables the pump to operate stably and ensures the delivery function of the pump. By arranging the rotating mechanism 20 above the base 10, a foundation can be provided for the stable operation of the pump. The rotating mechanism 20 includes a pump shaft 24, which is a core component for the pump to rotate and transmit, and can transmit power, while supporting the impeller 26 to ensure that the pump can perform centrifugal action. The base 10 and the pump shaft 24 can be effectively connected through the connector 21 to ensure the stability of the pump shaft 24 during transmission. Among them, by arranging the rotating bearing 22 between the pump shaft 24 and the connector 21, it can ensure that the pump shaft 24 rotates smoothly under the drive of power, and at the same time ensure that the pump shaft 24 is more stable when rotating. By arranging the rotating ring 23 outside the pump shaft 24, it is used to connect the pump shaft 24 and the decompression sleeve 25 to ensure the stability of the decompression sleeve 25 when in use. At the same time, the pressure relief sleeve 25 can also reduce the pressure impact of the high-pressure medium in the protective chamber 43 on the impeller 26. By arranging the pressure relief sleeve 25 on the outside of the rotating ring 23, the pump housing assembly 30 and the protective assembly 40 can be effectively connected, ensuring that the pump housing assembly 30 and the protective assembly 40 can be quickly disassembled and installed, which is convenient for replacing the internal structure. By arranging the impeller 26 at the output end of the pump shaft 24, the pump shaft 24 can effectively drive the impeller 26 to rotate, and the work of pumping slurry can be effectively realized. The pump housing assembly 30 is used to connect the transmission pipe and the output pipe to ensure that the pump performs transmission and delivery work, and at the same time provide support for the protective assembly 40. Among them, the pump housing assembly 30 is composed of a pump body 31 and a pump cover 32, and the two are detachably connected by a fastener 60, so that the internal parts such as the impeller 26, the rear guard plate 41 and the front guard plate 42 can be quickly replaced without disassembling the entire pump housing. Among them, the pump body 31 can fix the pump housing by clamping with the pressure relief sleeve 25. The pump cover 32 is detachably connected to the pump body 31 through a fastener 60, which facilitates the replacement and removal of the pump housing assembly 30. The protection assembly 40 is used to form a sealed space and place the impeller 26 to ensure that the impeller 26 works stably. Among them, the protection assembly 40 includes a rear guard plate 41 and a front guard plate 42, which are used to protect the pump shaft 24 and the impeller 26 from impact. The rear guard plate 41 is detachably connected to the pressure reducing sleeve 25 and the pump body 31, which facilitates the replacement of the internal structure. The locking mechanism 50 is used to fix the protection assembly 40, so that the rear guard plate 41 and the front guard plate 42 can be quickly disassembled, which is convenient for replacing the internal structure of the protection assembly 40. Among them, the locking mechanism 50 includes a locking cylinder 51 and a locking pin 52 that cooperate with each other. The protection assembly 40 can be quickly fixed, while ensuring its stability in use and preventing it from moving or falling off during operation.By using the snap-on connection and the locking mechanism 50 and the fastener 60, the pump body 31, the pump cover 32, the pressure reducing sleeve 25, the rear guard plate 41 and the front guard plate 42 can be quickly disassembled and installed, which is convenient for maintenance and replacement. At the same time, the abnormal causes of the pump can be quickly monitored, and the damaged parts can be effectively replaced separately, thereby reducing maintenance costs.

[0055] like Figure 1 , Figure 2 , Figure 3 As shown, by fixing the connector 21 above the base 10, the connector 21 is the main structure for connecting the rotating mechanism 20 with the base 10, ensuring the stability and centering of the entire rotating mechanism 20, and reducing vibration and deviation during high-speed operation. By arranging the rotating bearing 22 inside the connector 21, and the fixed sleeve is arranged on the outside of the pump shaft 24, the pump shaft 24 can be supported, and the pump shaft 24 can be freely rotated during the transmission process, while reducing friction and wear. By arranging the rotating ring 23 on the outside of the pump shaft 24, it should be noted that the rotating ring 23 has the same bearing structure, and its interior can rotate with the pump shaft 24, and the pressure relief sleeve 25 can be fixed through its exterior. By arranging the rotating bearing 22 and the rotating ring 23 on the outside of the pump shaft 24, it can be easy to check and maintain, and when replacing, it can be relatively easy to disassemble and reinstall. Among them, by fixing one end of the pump shaft 24 to the output end of the output motor, it can help maximize the efficiency of power transmission and reduce energy loss.

[0056] like Figure 2 , Figure 3 , Figure 4 As shown, by arranging the decompression sleeve 25 on the outside of the rotating ring 23, the decompression sleeve 25 can be effectively fixed. At the same time, a limiting groove 251 is provided on the side of the decompression sleeve 25 close to the pump body 31, which can be connected with the pump body 31 by snapping, ensuring stability during installation and rapid disassembly. By fixing a limiting buckle 252 on the other side of the decompression sleeve 25, it can cooperate with the rear guard plate 41 in the protective assembly 40 to ensure rapid disassembly of the rear guard plate 41. It should be noted that the limiting groove 251 and the limiting buckle 252 are both provided along the center array of the decompression sleeve 25, which can effectively ensure stability during rapid disassembly, and at the same time ensure safety during fixation, and ensure that there will be no movement during use.

[0057] like Figure 3 , Figure 5 , Figure 7As shown, the pump body 31 is detachably connected to the pump cover 32 by a fastener 60, and a placement cavity 33 can be formed after the connection. At the same time, the fastener 60 can facilitate the replacement of the internal structure as well as the pump body 31 and the pump cover 32, which can reduce the downtime required for maintenance or replacement of parts and improve production efficiency. Among them, the placement cavity 33 can provide a placement space for the protection component 40 to ensure stable fixation during installation. At the same time, the placement cavity 33 can also protect the internal components, reduce the need for frequent replacement of parts, and thus reduce long-term operating costs. Among them, a protection outlet 34 is provided above the placement cavity 33 to ensure slurry transportation. At the same time, a protection inlet 35 is provided on the pump cover 32, which can effectively introduce slurry. By providing an inlet and an outlet, it can be effectively ensured that the slurry can enter from one inlet, and then centrifuge it to ensure that it can be stably discharged from another port. Specifically, by fixing the connecting flange 36 on the protection outlet 34 and the protection inlet 35 respectively, the pump can be effectively connected to the slurry inlet pipe and the slurry outlet pipe to complete the circulation transportation of the pump, and can ensure the sealing and safety during transportation.

[0058] like Figure 5 , Figure 6 , Fig. 9 As shown, by fixing the limit pin 311 on the pump body 31, it can be used in conjunction with the limit groove 251 on the decompression sleeve 25 to ensure quick connection and facilitate disassembly and replacement. At the same time, a fixing groove 312 for placing the fixed motor 313 is provided on the pump body 31 to ensure that the fixed motor 313 is correctly positioned and stable during operation. By fixing the output end of the motor 313 and using it in conjunction with the rear guard plate 41, the pump body 31, the decompression sleeve 25 and the rear guard plate 41 can be made more stable during use.

[0059] Preferably, a sliding hole 411 that matches the output end of the fixed motor 313 and a limiting protrusion 412 that matches the upper limit buckle 252 of the decompression sleeve 25 are provided on the rear guard plate 41 to ensure the stability of the rear guard plate 41 when it is fixed. After the rear guard plate 41 is connected with the decompression sleeve 25 by snapping, the fixed motor 313 on the pump body 31 drives its output end to match the sliding hole 411 on the rear guard plate 41, which can not only further fix the pump body 31, the decompression sleeve 25 and the rear guard plate 41, but also make it easier to maintain the internal structure or replace parts.

[0060] In this embodiment, by setting the pressure reducing sleeve 25, by reducing the direct contact between the impeller 26 and the rear guard plate 41 and the pump body 31, wear is reduced and the service life of the pump is extended. By providing the limiting groove 251 and the limiting buckle 252 on the pressure reducing sleeve 25, the pump body 31 and the rear guard plate 41 can be effectively connected to ensure that the pressure reducing sleeve 25 is fixed at a specific position to prevent displacement during operation. At the same time, it is convenient to quickly replace and disassemble the internal structure. The design of the limiting groove 251 and the limiting buckle 252 makes the installation and disassembly of the pressure reducing sleeve 25 more convenient and quick, and parts can be quickly maintained or replaced. Among them, by fixing the sliding connection of the sliding hole 411 opened on the motor 313 and the rear guard plate 41, the clamping connection of the limiting pin 311 and the limiting groove 251, and the clamping cooperation of the limiting buckle 252 and the limiting protrusion 412. It can greatly improve the overall stability and reliability of the pump, and at the same time, it can improve the time for structural replacement, so that maintenance personnel can more easily perform necessary adjustments and maintenance work.

[0061] like Figure 5 , Figure 8 , Fig. 9 As shown, a protective chamber 43 can be formed by connecting the rear guard plate 41 and the front guard plate 42. The protective chamber 43 can create a closed working environment for the operation of the impeller 26, thereby reducing wear and extending the service life of the impeller 26. By opening the discharge port 44 above the protective chamber 43 and corresponding to the protective outlet 34, it can ensure that the slurry sucked by the pump and lifted by the impeller 26 can be discharged smoothly, and at the same time, it can reduce backflow and turbulence, thereby improving the efficiency of the pump. Among them, by opening the inlet 45 on the front guard plate 42, it is a key channel to ensure that the slurry enters the protective chamber 43 and is centrifugally lifted by the impeller 26. An entry sealer 46 is set at the inlet 45, and the entry sealer 46 is located in the protective inlet 35 and is fixedly connected to the entry end at the protective inlet 35, which can prevent the leakage of slurry when the pump is working, and also prevent the invasion of external impurities, ensuring the stability of the pump and the efficient operation of the impeller 26. It can also avoid loosening or failure of the seal due to vibration or long-term operation.

[0062] like Figure 5 , Fig. 9 , Fig.10 As shown, by fixing the locking cylinder 51 on the front guard plate 42, the locking pin 52 can be effectively guided to ensure effective cooperation with the locking pin 52 to complete quick disassembly and installation, thereby facilitating replacement of the internal structure. By providing a locking card slot 511 in the locking cylinder 51, it can be effectively used in cooperation with the locking protrusion 523 on the rear guard plate 41 to complete quick installation and positioning, ensuring stability when fixing the protection component 40.

[0063] Preferably, the locking pin 52 is fixed on the rear guard plate 41, and can effectively cooperate with the locking cylinder 51 on the front guard plate 42, so as to quickly fix the protection assembly 40 and facilitate the replacement of the internal structure. The locking pin 52 includes a locking slide bar 521 that cooperates with the locking card slot 511. By rotating the locking slide bar 521 and setting it at the output end of the locking drive rod 522, the locking slide bar 521 can be effectively driven to slide along the locking card slot 511 provided on the locking cylinder 51 when the locking drive rod 522 is working. At the same time, through the locking protrusion 523 on the locking slide bar 521, when the locking slide bar 521 moves to the bottom of the locking card slot 511, the locking protrusion 523 cooperates with the bottom of the card slot to limit the position, so as to complete the fixing of the rear guard plate 41 and the front guard plate 42.

[0064] In this embodiment, the locking driving rod 522 provided on the rear guard plate 41 in the locking mechanism 50 drives the locking slide bar 521 and the locking protrusion 523 to slide in the locking card slot 511 provided in the locking cylinder 51 on the front guard plate 42. When the locking protrusion 523 reaches the bottom of the locking card slot 511, it can be limited to complete the fixing of the rear guard plate 41 and the front guard plate 42, ensuring that the protection chamber 43 is formed to place and protect the impeller 26, and at the same time, the safety of the impeller 26 during operation can be ensured. Through the setting of the protection chamber 43, the discharge port 44 and the inlet port 45 in the protection assembly 40, the slurry can be effectively introduced and discharged. At the same time, through the correspondence between the discharge port 44 and the protection outlet 34 and the configuration of the inlet port 45 and the inlet sealer 46, efficient slurry treatment and a stable pump operation environment can be provided. When it is necessary to replace the impeller 26 or inspect the interior of the protection chamber 43, the front guard plate 42 and the rear guard plate 41 can be quickly disassembled by controlling the locking mechanism 50, and can be reassembled relatively easily. At the same time, the protection assembly 40 can optimize the flow path in the protection chamber 43 and ensure good sealing performance, thereby reducing the resistance of the fluid and improving the operating efficiency of the pump.

[0065] The present invention also provides a structural replacement method, which is applied to the above-mentioned heavy-duty slurry pump casing with a replaceable structure;

[0066] Step 1: By fixing the connector 21 on the base 10, the rotating bearing 22 can effectively drive the pump shaft 24 to rotate, thereby driving the rotating ring 23 sleeved on the outer side of the pump shaft 24;

[0067] Step 2: The pump body 31 is arranged on the outside of the pump shaft 24, and then the decompression sleeve 25 is arranged on the outside of the rotating ring 23 and fixed with the pump body 31 by clamping, and then the rear guard plate 41 is clamped with the decompression sleeve 25, and the fixed motor 313 is started to make its output end cooperate with the sliding hole 411 on the rear guard plate 41, so that the pump body 31, the decompression sleeve 25 and the rear guard plate 41 can be further fixed, and the reverse operation can replace the rear guard plate 41, the decompression sleeve 25 and the pump body 31;

[0068] Step 3: By fixing the impeller 26 to the pump shaft 24, the rear guard plate 41 and the front guard plate 42 are quickly removed by the locking mechanism 50, so that the protection assembly 40 forms a protection cavity 43 to protect the impeller 26, thereby ensuring the stable operation of the impeller 26. By quickly disassembling the locking mechanism 50, the front guard plate 42 and the impeller 26 can be replaced;

[0069] Step 4: Connect the entry sealer 46 to the entry port 45 on the front guard plate 42, and then connect the pump cover 32 to the pump body 31 through the fasteners 60 to form the overall structure of the pump. By quickly disassembling the fasteners 60, the pump cover 32 and the entry sealer 46 can be quickly replaced.

[0070] The working principle of the present invention is as follows: when the internal structure of the slurry pump needs to be replaced, the pump housing assembly 30 can be disassembled by taking out the fasteners 60 in sequence, and the internal structure can be observed at the same time to ensure that the structure can be accurately replaced. The protection assembly 40 can be quickly disassembled through the locking mechanism 50, which is convenient for replacing the impeller 26, the rear guard plate 41 and the front guard plate 42 inside it. By clamping the pressure reducing sleeve 25, the rear guard plate 41 and the pump body 31, the pressure reducing sleeve 25, the rear guard plate 41 and the pump body 31 can be quickly disassembled and installed, and replacement can be more rapid. After the replacement is completed, the pump body 31 and the rear guard plate 41 are clamped with the pressure reducing sleeve 25 in sequence, and the rear guard plate 41 can be further fixed by the fixed motor 313 in the pump body 31. Then the impeller 26 and the front guard plate 42 can be assembled, and the front guard plate 42 can be quickly assembled through the locking mechanism 50 to complete the protection of the impeller 26. Finally, the pump cover 32 and the pump body 31 are fixed by fasteners 60 to ensure safety and stability during use.

[0071] The above is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principles of the present invention, and these improvements and modifications should also be considered as the protection scope of the present invention. The structures, devices and operating methods not specifically described and explained in the present invention shall be implemented according to the conventional means in the art unless otherwise specified and limited.

Claims

1. A heavy-duty slurry pump housing with a replaceable structure, Features: The invention comprises a base (10) and a rotating mechanism (20), wherein the rotating mechanism (20) is arranged above the base (10), and the rotating mechanism (20) comprises a connector (21), a rotating bearing (22), a rotating ring (23) and a pump shaft (24), and a pressure reducing sleeve (25) and an impeller (26) are arranged at the output end of the pump shaft (24); The invention also comprises a pump casing assembly (30), wherein the pump casing assembly (30) comprises a pump body (31) connected to the decompression sleeve (25) by snapping, and a pump cover (32) detachably connected to the pump body (31) via a fastener (60); A protection assembly (40), the protection assembly (40) comprising a rear guard plate (41) detachably connected to the decompression sleeve (25), the rear guard plate (41) being detachably connected to a front guard plate (42); A locking mechanism (50), the locking mechanism (50) comprising a locking pin (52) disposed on the rear guard plate (41), and a locking cylinder (51) fixedly disposed on the front guard plate (42); By arranging the pressure reducing sleeve (25) on the pump shaft (24), by snap-connecting the pump body (31) and the pressure reducing sleeve (25), and by snap-connecting the pressure reducing sleeve (25) and the rear guard plate (41), and by respectively fixing the protection assembly (40) and the pump casing assembly (30) through the locking mechanism (50) and the fastener (60), the internal structure can be quickly disassembled and installed, which facilitates partial replacement of the internal structure, reduces maintenance costs, reduces equipment downtime, and improves resource utilization.

2. A heavy-duty slurry pump housing with a replaceable structure according to claim 1, Features: The connector (21) is fixedly arranged above the base (10), the rotating bearing (22) is fixedly arranged inside the connector (21), and the rotating bearing (22) and the rotating ring (23) are fixedly sleeved on the outside of the pump shaft (24), and the connecting end of the pump shaft (24) is fixedly connected to the output end of the output motor.

3. A heavy-duty slurry pump casing with a replaceable structure according to claim 2, Features: The decompression sleeve (25) is arranged on the outside of the rotating ring (23), and a limiting groove (251) is provided on one end side of the decompression sleeve (25) close to the pump body (31), and a limiting buckle (252) is fixedly provided on the other side of the decompression sleeve (25), and the limiting groove (251) and the limiting buckle (252) are both provided along the center array of the decompression sleeve (25).

4. A heavy-duty slurry pump casing with a replaceable structure according to claim 3, Features: A placement cavity (33) is formed at the connection between the pump body (31) and the pump cover (32), the protection component (40) is placed in the placement cavity (33), a protection outlet (34) is arranged above the placement cavity (33), and a protection inlet (35) is opened on the pump cover (32), and the protection inlet (35) is communicated with the placement cavity (33); The protection outlet (34) and the protection inlet (35) are both fixedly provided with a connection flange (36), and are fixedly connected to the slurry inlet pipe and the slurry outlet pipe through the connection flange (36), thereby ensuring the safety and stability of the slurry pump in conveying.

5. A heavy-duty slurry pump casing with a replaceable structure according to claim 4, Features: The pump body (31) is also fixedly provided with a limit pin (311), the limit pin (311) is snap-connected with the limit groove (251), and the pump body (31) is provided with a fixed groove (312), a fixed motor (313) is arranged in the fixed groove (312), and the output end of the fixed motor (313) is slidably connected with the rear guard plate (41).

6. A heavy-duty slurry pump casing with a replaceable structure according to claim 5, Features: The rear guard plate (41) is provided with a sliding hole (411) and a limiting protrusion (412), the limiting protrusion (412) is snap-connected with the limiting buckle (252), and the position of the sliding hole (411) corresponds to the output end of the fixed motor (313), and the sliding hole (411) and the output end of the fixed motor (313) are used in conjunction with each other to further fix and limit the pump body (31) and the rear guard plate (41).

7. A heavy-duty slurry pump casing with a replaceable structure according to claim 6, Features: The rear guard plate (41) is connected to the front guard plate (42) to form a protection cavity (43), the impeller (26) is located in the protection cavity (43), and an exhaust port (44) is provided above the protection cavity (43), the exhaust port (44) corresponds to the protection outlet (34), and an inlet (45) is provided on the rear guard plate (41), an inlet sealer (46) is provided at the inlet (45), and the inlet sealer (46) is located in the protection inlet (35) and fixedly connected to the inlet end of the protection inlet (35).

8. The heavy-duty slurry pump casing with a replaceable structure according to claim 1, Features: A locking slot (511) is provided in the locking cylinder (51), and the locking slot (511) is used in conjunction with the locking pin (52).

9. A heavy-duty slurry pump casing with a replaceable structure according to claim 8, Features: The locking pin (52) includes a locking slide bar (521) slidably connected to the locking slot (511); the locking slide bar (521) is rotatably arranged at the output end of a locking drive rod (522); the locking drive rod (522) is fixedly arranged in the rear guard plate (41); and a locking protrusion (523) is fixedly arranged on the locking slide bar (521).

10. A method for replacing a structure, applied to the heavy-duty slurry pump casing with a replaceable structure as claimed in claims 1 to 9, Features: Step 1: by fixing the connector (21) above the base (10), the rotating bearing (22) can effectively drive the pump shaft (24) to rotate, thereby driving the rotating ring (23) sleeved on the outside of the pump shaft (24); Step 2: The pump body (31) is arranged on the outside of the pump shaft (24), and then the pressure reducing sleeve (25) is arranged on the outside of the rotating ring (23) and fixed to the pump body (31) by clamping, and then the rear guard plate (41) is clamped to the pressure reducing sleeve (25), and the fixing motor (313) is started to make its output end cooperate with the sliding hole (411) on the rear guard plate (41), so that the pump body (31), the pressure reducing sleeve (25) and the rear guard plate (41) can be further fixed, and vice versa, the rear guard plate (41), the pressure reducing sleeve (25) and the pump body (31) can be replaced; Step 3: The impeller (26) is fixedly connected to the pump shaft (24), and the rear guard plate (41) and the front guard plate (42) are quickly removed by the locking mechanism (50), so that the protection assembly (40) forms a protection cavity (43) to protect the impeller (26), thereby ensuring the stable operation of the impeller (26); and the front guard plate (42) and the impeller (26) can be replaced by quickly disassembling the locking mechanism (50); Step 4: Connect the entry sealer (46) to the entry port (45) on the front guard plate (42), and then connect the pump cover (32) to the pump body (31) via the fasteners (60) to form the overall structure of the pump. By quickly disassembling the fasteners (60), the pump cover (32) and the entry sealer (46) can be quickly replaced.

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