A slurry pump with detachable wear-resistant parts

Abstract

This utility model discloses a slurry pump with detachable wear-resistant parts, comprising: a pump body, with an outwardly extending slurry inlet pipe head on one side of the pump body's center; a connecting plate at the outer end of the slurry inlet pipe head, the connecting plate having a first connecting hole; a wear-resistant sleeve, including an annular plate and an embedded tube connected to the center of the annular plate; a slurry inlet pipe, with a mating plate at one end that fits against the annular plate; a circumferential positioning component for circumferentially positioning the connecting plate, annular plate, and mating plate; and a detachable fastening assembly for clamping and fixing the connecting plate, annular plate, and mating plate. This utility model, by providing a detachable wear-resistant sleeve and a detachable fastening assembly, allows for the replacement of the wear-resistant sleeve individually without replacing the entire pump body when the wear-resistant sleeve wears down due to long-term use, simply by disassembling the fastening assembly. Furthermore, the circumferential positioning component ensures rapid circumferential positioning of the connecting plate, annular plate, and mating plate during assembly, further improving assembly efficiency.

Description

Technical Field

[0001] This utility model relates to the field of slurry pump technology, and in particular, to a slurry pump with detachable wear-resistant parts. Background Technology

[0002] In industrial production, slurry pumps, as key equipment for conveying slurry media containing solid particles, are widely used in mining, metallurgy, power, and chemical industries. During operation, the solid particles in the slurry continuously erode and wear the pump's flow channels and connecting components, especially at the inlet. Because the slurry flows at a high velocity when entering the pump chamber from the inlet pipe and easily forms local turbulence, the inlet pipe head becomes one of the areas most severely affected by wear.

[0003] Traditional slurry pump inlet structures are typically made using integral casting or welding. When the inlet pipe head wears down, the entire pump body or inlet component needs to be replaced, resulting in high maintenance costs and a lengthy replacement process, severely impacting production continuity. To address this issue, some technical solutions attempt to weld a wear-resistant bushing inside the inlet pipe head to extend its lifespan. However, welded wear-resistant bushings are inconvenient to install and difficult to disassemble and replace later. Utility Model Content

[0004] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a slurry pump with detachable wear-resistant parts.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] A slurry pump with detachable wear-resistant parts includes: a pump body having a pump chamber; an outwardly extending slurry inlet pipe head on one side of the center of the pump body; and an outwardly extending slurry outlet pipe head on the periphery of the pump body; the slurry inlet pipe head communicating with the pump chamber; a connecting plate at the outer end of the slurry inlet pipe head; and a first connecting hole on the connecting plate; a wear-resistant sleeve including an annular plate and an embedded tube connected to the center of the annular plate; the embedded tube being embedded in the slurry inlet pipe head; and the annular plate being fitted with the connecting plate and having a second connecting hole aligned with the first connecting hole; and a slurry inlet... The tube has a butt plate at one end that fits against the ring plate. The butt plate and the ring plate are interlocked to align the center of the wear-resistant sleeve and the slurry inlet tube. The butt plate has a third connecting hole that aligns with the second connecting hole. A circumferential positioning component is used to circumferentially position the connecting plate, the ring plate, and the butt plate to align the first connecting hole, the second connecting hole, and the third connecting hole. A detachable fastening assembly is partially inserted into the aligned first connecting hole, the second connecting hole, and the third connecting hole to clamp and fix the connecting plate, the ring plate, and the butt plate.

[0007] Furthermore, the annular plate has a positioning groove at the center of its side facing the docking plate, and the docking plate has a positioning protrusion that is embedded in the positioning groove.

[0008] Furthermore, the circumferential positioning element is a positioning post connected to the ring plate, the positioning post protruding from the ring plate towards the connecting plate, and the connecting plate is provided with a first positioning groove for the positioning post to be partially embedded.

[0009] Furthermore, the positioning post protrudes from the annular plate towards the docking plate on one side, and the docking plate is provided with a second positioning groove for the positioning post to be partially embedded.

[0010] Furthermore, the ring plate is provided with a threaded hole, and the positioning pin is threadedly connected to the threaded hole.

[0011] Furthermore, the positioning post includes a first positioning section, a threaded section, and a second positioning section. The threaded section is threadedly connected to a threaded hole. The first positioning section protrudes from the annular plate to one side facing the connecting plate and is embedded in a first positioning groove. The second positioning section protrudes from the annular plate to one side facing the mating plate and is embedded in a second positioning groove.

[0012] Furthermore, the first positioning segment, the threaded segment, and the second positioning segment are coaxially connected in sequence, and their diameters decrease in sequence.

[0013] Furthermore, both the first positioning groove and the second positioning groove are U-shaped open grooves.

[0014] Furthermore, sealing gaskets are provided between the connecting plate and the ring plate, and between the ring plate and the mating plate.

[0015] Furthermore, it also includes a motor and an impeller plate. The impeller plate is installed in the pump body. The rotating shaft of the motor is connected to the impeller plate for transmission. The impeller plate has a conical column with its tip facing the slurry inlet pipe head at its center on one side. Blades are arranged around the outer periphery of the conical column on the impeller plate.

[0016] This utility model has the following beneficial effects:

[0017] By incorporating a detachable wear-resistant sleeve and detachable fastening components, the problem of inconvenient disassembly and assembly of traditional welded wear-resistant bushings is effectively solved. When the wear-resistant sleeve wears down due to long-term use, the entire pump body does not need to be replaced; only the fastening components need to be disassembled to replace the wear-resistant sleeve, significantly reducing maintenance costs. Furthermore, by using an insert tube embedded within the slurry inlet head, the insert tube replaces the slurry inlet head in contact with the slurry, improving wear life. The wear-resistant sleeve can also be made entirely of wear-resistant material, ensuring wear resistance without requiring the entire pump body to be made of wear-resistant material, effectively controlling costs. By embedding the tube into the slurry inlet pipe head, the center alignment of the wear-resistant sleeve and the slurry inlet pipe head is achieved. The concave-convex fit structure of the butt plate and the ring plate is used to achieve precise center alignment between the wear-resistant sleeve and the slurry inlet pipe. Furthermore, the setting of the circumferential positioning component ensures that the connecting plate, the ring plate and the butt plate can be quickly circumferentially positioned during the assembly process, so that the first connecting hole, the second connecting hole and the third connecting hole are precisely aligned. With the help of the detachable fastening component inserted into the aligned connecting hole, the three are clamped and fixed, which further improves the assembly efficiency.

[0018] In addition to the objectives, features, and advantages described above, this utility model has other objectives, features, and advantages. The present utility model will now be described in further detail with reference to the figures. Attached Figure Description

[0019] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0020] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 2 yes Figure 1 A schematic diagram of the decomposed state structure;

[0022] Figure 3 yes Figure 2 Enlarged view of point A;

[0023] Figure 4 This is a partial exploded view of the present invention;

[0024] Figure 5 This is a partial sectional view of the present invention;

[0025] Figure 6 This is a schematic diagram of the impeller plate.

[0026] Legend:

[0027] Pump body 100, pump chamber 110, slurry inlet pipe head 120, slurry outlet pipe head 130, connecting plate 140, first connecting hole 141, first positioning groove 142;

[0028] Wear-resistant sleeve 200, ring plate 210, second connecting hole 211, positioning groove 212, threaded hole 213, insert tube 220;

[0029] Slurry inlet pipe 300, docking plate 310, third connecting hole 311, positioning protrusion 312, second positioning groove 313;

[0030] Circumferential positioning component 400, first positioning section 410, threaded section 420, second positioning section 430;

[0031] Sealing gasket 500, motor 600, impeller plate 700, cone column 710, blade 720. Detailed Implementation

[0032] It should be understood that the specific embodiments described herein are merely illustrative of the present invention and are not intended to limit the present invention.

[0033] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0034] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0035] Furthermore, the use of terms such as "first" and "second" in this utility model is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this utility model.

[0036] Please refer to Figure 1 and Figure 2 A preferred embodiment of the present invention provides a slurry pump with detachable wear-resistant parts, including a pump body 100, a wear-resistant sleeve 200, a slurry inlet pipe 300, a circumferential positioning part 400, and a fastening assembly.

[0037] The pump body 100 has a pump chamber 110. A slurry inlet pipe 120 extending outwards is located on one side of the center of the pump body 100, and a slurry outlet pipe 130 extending outwards is located on the periphery of the pump body 100. The slurry inlet pipe 120 communicates with the pump chamber 110, and a connecting plate 140 is located at the outer end of the slurry inlet pipe 120, extending radially outwards from the end of the slurry inlet pipe 120. The connecting plate 140 has a first connecting hole 141.

[0038] The wear-resistant sleeve 200 includes an annular plate 210 and an embedded tube 220 connected to the center of the annular plate 210. The embedded tube 220 is embedded into the slurry inlet head 120. Specifically, the outer diameter of the embedded tube 220 is adapted to the central hole of the slurry inlet head 120, so that when the embedded tube 220 is embedded into the slurry inlet head 120, the outer wall of the embedded tube 220 fits against the wall of the central hole of the slurry inlet head 120, thereby reducing the installation gap between the two by slurry entering. The annular plate 210 is attached to the connecting plate 140 and is provided with a second connecting hole 211 aligned with the first connecting hole 141.

[0039] One end of the slurry inlet pipe 300 is provided with a butt plate 310 that fits against the ring plate 210. The butt plate 310 and the ring plate 210 are in a concave-convex fit to achieve center alignment between the wear-resistant sleeve 200 and the slurry inlet pipe 300, that is, to ensure the coaxiality of the two, to achieve positioning fit, and to facilitate hole alignment. The butt plate 310 is provided with a third connecting hole 311 that is aligned with the second connecting hole 211.

[0040] The circumferential positioning component 400 is used to circumferentially position the connecting plate 140, the ring plate 210 and the mating plate 310 to achieve alignment of the first connecting hole 141, the second connecting hole 211 and the third connecting hole 311.

[0041] The fastening assembly is a detachable fastening assembly. Part of the fastening assembly is inserted into aligned first connecting holes 141, second connecting holes 211, and third connecting holes 311 to clamp and secure the connecting plate 140, ring plate 210, and mating plate 310. The fastening assembly includes a bolt and a nut. The shank of the bolt is inserted into the first connecting holes 141, second connecting holes 211, and third connecting holes 311, with the end protruding to connect with the nut. The nut and the bolt head clamp and secure the three components together.

[0042] This utility model provides a slurry pump with detachable wear-resistant parts. By setting a detachable wear-resistant sleeve 200 and cooperating with detachable fastening components, it effectively solves the problem of inconvenient disassembly and assembly of traditional welded wear-resistant bushings. When the wear-resistant sleeve 200 wears due to long-term use, it is not necessary to replace the entire pump body 100; only the fastening components need to be disassembled to replace the wear-resistant sleeve 200, significantly reducing maintenance costs. The insert tube 220 is embedded into the slurry inlet head 120, thereby using the insert tube 220 to replace the slurry inlet head 120 in contact with the slurry, improving wear resistance life. Furthermore, the wear-resistant sleeve 200 can be made of wear-resistant material alone, ensuring wear resistance performance while eliminating the need for the entire pump body 100 to be made of wear-resistant material, effectively controlling costs. By embedding the insert tube 220 into the slurry inlet head 120, the center alignment of the wear-resistant sleeve 200 and the slurry inlet head 120 is achieved. The concave-convex fit structure of the butt plate 310 and the ring plate 210 is used to achieve precise center alignment of the wear-resistant sleeve 200 and the slurry inlet pipe 300. Furthermore, the setting of the circumferential positioning component 400 ensures that the connecting plate 140, the ring plate 210 and the butt plate 310 can be quickly circumferentially positioned during the assembly process, so that the first connecting hole 141, the second connecting hole 211 and the third connecting hole 311 are precisely aligned. With the help of the detachable fastening component inserted into the aligned connecting hole, the three are clamped and fixed, which further improves the assembly efficiency.

[0043] Reference Figure 3 and Figure 4 In a further embodiment of this utility model, the annular plate 210 has a positioning groove 212 at its center on the side facing the mating plate 310, and the mating plate 310 has a positioning protrusion 312 that is embedded in the positioning groove 212. The concave-convex mating structure formed by the positioning groove 212 on the annular plate 210 and the positioning protrusion 312 on the mating plate 310 improves the accuracy and reliability of center alignment. During the process of the positioning protrusion 312 being embedded in the positioning groove 212, it can play a good pre-positioning role and also facilitates the subsequent alignment of holes and installation of fasteners.

[0044] Reference Figures 3 to 5 In a further embodiment of this utility model, the circumferential positioning member 400 is a positioning post connected to the ring plate 210. The positioning post protrudes from the side of the ring plate 210 facing the connecting plate 140, and the connecting plate 140 is provided with a first positioning groove 142 for the positioning post to be partially inserted. The moment the positioning post is inserted into the first positioning groove 142, the circumferential positioning of the ring plate 210 and the connecting plate 140 can be completed, which greatly shortens the alignment time during the assembly process.

[0045] Reference Figures 3 to 5In a further embodiment of this utility model, the positioning post protrudes from the annular plate 210 towards the docking plate 310, and the docking plate 310 is provided with a second positioning groove 313 for the positioning post to be partially embedded. The positioning post protrudes from the annular plate 210 in both directions and is respectively embedded in the first positioning groove 142 of the connecting plate 140 and the second positioning groove 313 of the docking plate 310, forming a through-type circumferential positioning structure, realizing the synchronous circumferential limiting of the connecting plate 140, the annular plate 210 and the docking plate 310.

[0046] Reference Figures 3 to 5 In a further embodiment of this utility model, the ring plate 210 is provided with a threaded hole 213, and the positioning pin is threadedly connected to the threaded hole 213. The threaded connection between the threaded hole 213 on the ring plate 210 and the positioning pin enables the detachable installation of the positioning pin and also makes the ring plate 210 easier to process.

[0047] Reference Figures 3 to 5 In a further embodiment of this utility model, the positioning post includes a first positioning segment 410, a threaded segment 420, and a second positioning segment 430. The threaded segment 420 is threadedly connected to the threaded hole 213. The first positioning segment 410 protrudes from the side of the annular plate 210 facing the connecting plate 140 and is embedded in the first positioning groove 142. The second positioning segment 430 protrudes from the side of the annular plate 210 facing the mating plate 310 and is embedded in the second positioning groove 313. The threaded segment 420 ensures a reliable connection between the positioning post and the threaded hole 213 of the annular plate 210. The first positioning segment 410 and the second positioning segment 430 are precisely matched with the first positioning groove 142 and the second positioning groove 313, respectively, further improving the positioning accuracy. The three-section coaxial design can also eliminate eccentricity errors during assembly and ensure the accuracy of the alignment of the connecting holes.

[0048] Reference Figures 3 to 5 In a further embodiment of this utility model, the first positioning segment 410, the threaded segment 420, and the second positioning segment 430 are coaxially connected in sequence, and their diameters decrease sequentially. When the positioning pin is tightened, the shoulder formed between the first positioning segment 410 and the threaded segment 420 will contact the ring plate 210, achieving axial positioning and forming a certain axial preload, thereby enhancing the connection stability between the positioning pin and the ring plate 210.

[0049] Reference Figures 3 to 5 In a further embodiment of this utility model, both the first positioning groove 142 and the second positioning groove 313 are U-shaped opening grooves. The diameter of the first positioning section 410 is adapted to the width of the first positioning groove 142, and the diameter of the second positioning section 430 is adapted to the width of the second positioning groove 313, which facilitates assembly.

[0050] Reference Figures 3 to 5In a further embodiment of this utility model, sealing gaskets 500 are sandwiched between the connecting plate 140 and the ring plate 210, and between the ring plate 210 and the mating plate 310. The sealing gaskets 500 can effectively compensate for the micro-unevenness of the contact surfaces, greatly improve the fit rate of the sealing surfaces, and ensure sealing performance. The sealing gaskets 500 can be made of rubber material.

[0051] Reference Figure 1 , Figure 2 , Figure 5 and Figure 6 In a further embodiment of this utility model, a motor 600 and an impeller plate 700 are also included. The impeller plate 700 is installed inside the pump body 100. The rotating shaft of the motor 600 is connected to the impeller plate 700 for transmission. The impeller plate 700 has a conical column 710 with its tip facing the inlet pipe head 120 at its center on the side facing the inlet pipe head 120. Blades 720 are arranged around the outer periphery of the impeller plate 700 with the tip of the conical column 710 facing the inlet pipe head 120. The tip of the conical column 710 faces the inlet pipe head 120, which can smoothly guide the slurry flowing into the inlet pipe head 120 into the area of ​​the blades 720, reduce turbulence loss at the inlet, and improve the hydraulic efficiency of the pump body. The motor 600 drives the impeller plate 700 to rotate, and the rotation of the blades 720 uses centrifugal force to throw the slurry entering from the inlet pipe head 120 to the periphery and finally output it from the outlet pipe head 130.

[0052] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A slurry pump with detachable wear-resistant parts, characterized in that, include: A pump body (100) is provided with a pump chamber (110). A slurry inlet pipe head (120) extending outward is provided on one side of the center of the pump body (100), and a slurry outlet pipe head (130) extending outward is provided on the periphery of the pump body (100). The slurry inlet pipe head (120) is connected to the pump chamber (110), and a connecting plate (140) is provided at the outer end of the slurry inlet pipe head (120). The connecting plate (140) is provided with a first connecting hole (141). The wear-resistant sleeve (200) includes an annular plate (210) and an embedded tube (220) connected to the center of the annular plate (210). The embedded tube (220) is embedded in the slurry tube head (120). The annular plate (210) is attached to the connecting plate (140) and is provided with a second connecting hole (211) aligned with the first connecting hole (141). The slurry inlet pipe (300) has a butt plate (310) at one end that fits against the ring plate (210). The butt plate (310) and the ring plate (210) are in a concave-convex fit to achieve center alignment between the wear-resistant sleeve (200) and the slurry inlet pipe (300). The butt plate (310) has a third connecting hole (311) that is aligned with the second connecting hole (211). A circumferential positioning component (400) is used to circumferentially position the connecting plate (140), the ring plate (210), and the mating plate (310) to achieve alignment of the first connecting hole (141), the second connecting hole (211), and the third connecting hole (311); The detachable fastening assembly is partially inserted into the aligned first connecting hole (141), second connecting hole (211), and third connecting hole (311) to clamp and secure the connecting plate (140), the ring plate (210), and the mating plate (310).

2. The slurry pump with detachable wear-resistant parts according to claim 1, characterized in that, The annular plate (210) has a positioning groove (212) at the center of its side facing the docking plate (310), and the docking plate (310) has a positioning protrusion (312) that is embedded in the positioning groove (212).

3. The slurry pump with detachable wear-resistant parts according to claim 1, characterized in that, The circumferential positioning component (400) is a positioning post connected to the ring plate (210). The positioning post protrudes from the ring plate (210) on the side facing the connecting plate (140). The connecting plate (140) is provided with a first positioning groove (142) for the positioning post to be partially embedded.

4. The slurry pump with detachable wear-resistant parts according to claim 3, characterized in that, The positioning post protrudes from the annular plate (210) on one side facing the docking plate (310), and the docking plate (310) is provided with a second positioning groove (313) for the positioning post to be partially embedded.

5. The slurry pump with detachable wear-resistant parts according to claim 4, characterized in that, The ring plate (210) is provided with a threaded hole (213), and the positioning pin is threadedly connected to the threaded hole (213).

6. The slurry pump with detachable wear-resistant parts according to claim 5, characterized in that, The positioning post includes a first positioning section (410), a threaded section (420), and a second positioning section (430). The threaded section (420) is threadedly connected to the threaded hole (213). The first positioning section (410) protrudes from the ring plate (210) on the side facing the connecting plate (140) and is embedded in the first positioning groove (142). The second positioning section (430) protrudes from the ring plate (210) on the side facing the mating plate (310) and is embedded in the second positioning groove (313).

7. The slurry pump with detachable wear-resistant parts according to claim 6, characterized in that, The first positioning segment (410), the threaded segment (420), and the second positioning segment (430) are coaxially connected in sequence and their diameters decrease in sequence.

8. The slurry pump with detachable wear-resistant parts according to claim 4, characterized in that, Both the first positioning groove (142) and the second positioning groove (313) are U-shaped opening grooves.

9. The slurry pump with detachable wear-resistant parts according to claim 1, characterized in that, Sealing gaskets (500) are provided between the connecting plate (140) and the ring plate (210), and between the ring plate (210) and the mating plate (310).

10. The slurry pump with detachable wear-resistant parts according to claim 1, characterized in that, It also includes a motor (600) and an impeller plate (700). The impeller plate (700) is installed inside the pump body (100). The rotating shaft of the motor (600) is connected to the impeller plate (700) for transmission. The impeller plate (700) has a conical column (710) with its tip facing the slurry inlet pipe head (120) at its center on the side facing the slurry inlet pipe head (120). Blades (720) are arranged around the outer periphery of the impeller plate (700) with the conical column (710).

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