A slurry pump body convenient to maintain

By using a quick-release maintenance mechanism and an adjustable impeller adapter, the problems of cumbersome disassembly of the slurry pump body and poor adaptability to operating conditions have been solved, achieving efficient maintenance and stable operation, and improving the service life and operating efficiency of the equipment.

CN224339223UActive Publication Date: 2026-06-09HEBEI TONGDA PUMP & VALVE GRP CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HEBEI TONGDA PUMP & VALVE GRP CO LTD
Filing Date
2025-08-15
Publication Date
2026-06-09

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  • Figure CN224339223U_ABST
    Figure CN224339223U_ABST
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Abstract

The utility model discloses a kind of slurry pump body convenient to maintain, it relates to slurry pump body technical field, including.The slurry pump body convenient to maintain, pump cavity and clamping groove, the outer surface of the pump cavity is equipped with clamping groove, and the outer surface of clamping groove is connected with quick-release maintenance mechanism, the quick-release maintenance mechanism includes the pump body shell of being set in the position of pump cavity outer surface, and the inner wall of pump body shell is fixedly connected with sealing ring, the inner wall of sealing ring is fixedly connected with elastic rod, and fastening pin is connected in elastic rod inside penetration, the two groups of clamping grooves of pump cavity outer surface opening are consistent with the two groups of elastic rods in pump body shell interior, pump cavity and pump body shell are quickly completed installation by clamping groove and elastic rod, when disassembling, pull pump body shell, loosen fastening pin can be separated, it is convenient to overhaul, compared with the ordinary slurry pump body of existing, reduce manpower input, improve equipment maintenance efficiency, reduce downtime, and expand equipment use range, meet different work scene needs.
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Description

Technical Field

[0001] This utility model relates to the field of slurry pump body technology, specifically a slurry pump body that is easy to maintain. Background Technology

[0002] From a physics perspective, slurry pumps belong to the category of centrifugal pumps. They are devices that use the centrifugal force generated by the rotation of the pump impeller to transfer the energy of a mixture of liquid water and solid particles. Slurry pumps are used to transport slurries with strong corrosiveness, non-uniform particles, and a high proportion of slurry content. This is a fundamental difference from ordinary water pumps. Existing slurry pumps have certain shortcomings.

[0003] For example, the slurry pump body with application number CN202322507981.6, which is easy to maintain, includes a motor. A pump body main body is located on one side of the motor, and a first volute and a second volute are located on one side of the pump body main body. A fixing mechanism for securing the first and second volutes is provided on the outer wall of the first volute. The fixing mechanism includes an L-shaped plate symmetrically arranged on the outer wall of the first volute. A first ear plate is symmetrically arranged on the outer wall of the first volute, and a second ear plate is symmetrically arranged on the outer wall of the second volute. A drive block is located on the inner side of the L-shaped plate. This utility model, through the arrangement of the L-shaped plate, first ear plate, second ear plate, drive block, first inclined surface, second inclined surface, and bolts, allows the pump to be cleaned and maintained by rotating the bolts to disengage from the second ear plate, releasing the fixation between the first and second volutes. This makes the slurry pump easy to assemble and disassemble, facilitating internal cleaning and maintenance. However, the internal structure of the slurry pump is compact, and the disassembly of parts involves many steps. Maintenance requires a lot of time and manpower, which reduces the efficiency of equipment maintenance. Furthermore, the existing pump cannot be quickly adjusted to adapt to the differences in slurry concentration and particle size under different working conditions, which limits the scope of application of the equipment.

[0004] Therefore, in view of this, we studied and improved the existing structure to propose a slurry pump body that is easy to maintain. Utility Model Content

[0005] The purpose of this utility model is to provide a slurry pump body that is easy to maintain, in order to solve the problems mentioned in the background art, such as compact internal structure, numerous disassembly steps for parts, and the need to consume a lot of time and manpower during maintenance, which reduces the efficiency of equipment maintenance. Furthermore, existing pump bodies cannot be quickly adjusted to adapt to the differences in slurry concentration and particle size under different working conditions, thus limiting the scope of application of the equipment.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a slurry pump body that is easy to maintain, including a pump chamber and a slot. The slot is provided on the outer surface of the pump chamber, and a quick-release maintenance mechanism is engaged on the outer surface of the slot. The quick-release maintenance mechanism includes a pump body shell located on the outer surface of the pump chamber, and a sealing ring is fixedly connected to the inner wall of the pump body shell. An elastic rod is fixedly connected to the inner wall of the sealing ring, and a fastening pin is connected through the elastic rod.

[0007] Preferably, a feed inlet is fixedly connected to the top of the pump body shell, and a guide cone is fixedly connected to the inner surface of the feed inlet.

[0008] Preferably, the inner surface of the guide cone is provided with a guide hole, and an outlet channel is fixedly connected to one side of the pump chamber.

[0009] Preferably, a connecting flange is fixedly connected to one side of the outlet channel, and a connecting bolt is threaded onto the inner surface of the connecting flange.

[0010] Preferably, a motor is provided on one side of the pump chamber, and an impeller adapter mechanism is fixedly connected to the output end of the motor.

[0011] Preferably, the impeller adapter mechanism includes a fixed shaft fixedly connected to the output end of the motor, with a fixing hole on the inner surface of the fixed shaft, an adjustable impeller on the outer surface of the fixed shaft, and a fixing bolt threadedly connected to the inner surface of the adjustable impeller.

[0012] Preferably, a mounting base is fixedly connected to the outer surface of the motor, and a shock-absorbing damper is fixedly connected to the bottom of the mounting base, and an anti-slip pad is fixedly connected to the bottom of the shock-absorbing damper.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model achieves efficient maintenance and stable operation of the pump body through the quick-disassembly maintenance mechanism. When maintenance is required, the pump chamber can be quickly separated, greatly shortening maintenance time and reducing downtime losses. The fastening pin effectively resists high-frequency vibration and fluid impact during the operation of the slurry pump, preventing parts from loosening. The sealing ring is deformed under pressure during the fastening process, filling gaps and achieving a seal to prevent slurry leakage. This design not only ensures the stability and safety of the pump body operation, but also extends the service life of key pump body components and reduces overall maintenance costs through convenient disassembly and assembly.

[0015] 2. This utility model, through the setting of the guide cone and impeller adapter mechanism, can flexibly cope with complex working conditions and adjust the impeller spacing precisely, thereby changing the pump head and flow rate. This ensures that the slurry pump maintains strong power when conveying high concentrations, reduces energy consumption under low flow conditions, and improves overall operating efficiency. The guide cone, through buffering and diversion, significantly reduces the impact force when the slurry enters the pump cavity, making the feeding in the pump cavity more stable, reducing wear on impellers and other components, extending the service life of the pump body, and providing a reliable guarantee for the stable operation of the slurry pump. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of the present invention;

[0017] Figure 2 This is a schematic diagram of the overall side view structure of this utility model;

[0018] Figure 3 This is a structural schematic diagram of the quick-release maintenance mechanism 3 of this utility model;

[0019] Figure 4 This is a schematic diagram of the impeller adapter mechanism 11 of this utility model.

[0020] In the diagram: 1. Pump chamber; 2. Slot; 3. Quick-release maintenance mechanism; 301. Pump body shell; 302. Sealing ring; 303. Elastic rod; 304. Fastening pin; 4. Feed inlet; 5. Guide cone; 6. Guide hole; 7. Outlet channel; 8. Connecting flange; 9. Connecting bolt; 10. Motor; 11. Impeller adapter mechanism; 1101. Fixed shaft; 1102. Fixed hole; 1103. Adjustable impeller; 1104. Fixing bolt; 12. Fixed seat; 13. Vibration damping; 14. Anti-slip pad. Detailed Implementation

[0021] 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.

[0022] like Figures 1-3As shown, a slurry pump body that is easy to maintain includes a pump chamber 1 and a slot 2. The slot 2 is provided on the outer surface of the pump chamber 1, and a quick-release maintenance mechanism 3 is engaged on the outer surface of the slot 2. The quick-release maintenance mechanism 3 includes a pump body shell 301 located on the outer surface of the pump chamber 1, and a sealing ring 302 is fixedly connected to the inner wall of the pump body shell 301. An elastic rod 303 is fixedly connected to the inner wall of the sealing ring 302, and a fastening pin 304 is passed through the elastic rod 303. The two sets of slots 2 on the outer surface of the pump chamber 1 are connected to the pump body. The two sets of elastic rods 303 inside the outer casing 301 are aligned. The pump chamber 1 and the pump body outer casing 301 are quickly installed through the slot 2 and the elastic rods 303. During maintenance and disassembly, first loosen the fastening pin 304 to release the wedge locking effect, then pull the pump body outer casing 301. The elastic rod 303 will disengage from the slot 2, and the pump chamber 1 can be quickly separated. The fastening pin 304 passes through the elastic rod 303, and its protruding structure is pressed more tightly against the inner wall of the slot 2, forming a wedge-like locking effect, which greatly improves the connection strength and prevents the pump body from loosening during operation.

[0023] like Figure 1 As shown, a feed inlet 4 is fixedly connected to the top of the pump body shell 301, and a guide cone 5 is fixedly connected to the inner surface of the feed inlet 4. A guide hole 6 is opened on the inner surface of the guide cone 5, and an outlet channel 7 is fixedly connected to one side of the pump chamber 1. The structure of the guide cone 5, which is narrow at the top and wide at the bottom, guides the dispersion of slurry. The guide holes 6 evenly opened on its inner surface allow the slurry to flow into the pump chamber 1 in a dispersed manner, so as to achieve a uniform flow distribution. At the same time, the guide cone 5 can reduce the impact of slurry and improve the stability of the pump body feeding.

[0024] Furthermore, a connecting flange 8 is fixedly connected to one side of the outlet channel 7, and a connecting bolt 9 is threaded onto the inner surface of the connecting flange 8. A motor 10 is installed on one side of the pump chamber 1, and an impeller adapter mechanism 11 is fixedly connected to the output end of the motor 10. The connecting flange 8 fits against the corresponding connecting flange 8 of other components through a flat sealing surface. The connecting bolt 9 passes through the holes opened in the connecting flange 8 in sequence and is tightened to generate axial tension, so that the two connecting flanges 8 fit tightly together, improving the connection stability. The output shaft of the motor 10 is rigidly connected to the adjustable impeller 1103 through a coupling. When the motor 10 is powered on and running, the torque is transmitted through the shaft, driving the adjustable impeller 1103 to rotate at high speed.

[0025] Furthermore, the impeller adaptation mechanism 11 includes a fixed shaft 1101 fixedly connected to the output end of the motor 10, with a fixing hole 1102 on the inner surface of the fixed shaft 1101, and an adjustable impeller 1103 on the outer surface of the fixed shaft 1101. The inner surface of the adjustable impeller 1103 is threaded with a fixing bolt 1104. By loosening the fixing bolt 1104, the position of the adjustable impeller 1103 on the outer surface of the fixed shaft 1101 is changed. Then, the fixing bolt 1104 is screwed into the new fixing hole 1102 and tightened, so that the spacing of the adjustable impeller 1103 can be precisely changed, and the working conditions of different slurry concentrations and flow rates can be quickly adapted.

[0026] Furthermore, a fixed base 12 is fixedly connected to the outer surface of the motor 10, and a shock-absorbing damper 13 is fixedly connected to the bottom of the fixed base 12. An anti-slip pad 14 is fixedly connected to the bottom of the shock-absorbing damper 13. The fixed base 12 is connected to the shock-absorbing damper 13. The damping material absorbs the vibration energy of the pump body through elastic deformation, weakens the vibration amplitude, reduces component wear, and extends service life. The anti-slip pad 14 increases the friction with the contact surface, stabilizes the pump body, and prevents displacement.

[0027] Working principle: When using this easy-to-maintain slurry pump body, firstly, the pump body outer shell 301 of the quick-release maintenance mechanism 3 is fitted onto the outside of the pump chamber 1. After the elastic rod 303 is pressed, it slides into the slot 2 and elastically resets. After quick positioning, the fastening pin 304 is tightened, forming a sealed connection with the sealing ring 302. The pump body is connected to other components through the connecting bolts 9 inside the connecting flange 8. Then, the slurry is poured into the feed inlet 4 and dispersed into the pump chamber 1 through the guide holes 6 on the inner surface of the guide cone 5. At the same time, the motor 10 and the adjustable impeller 1103 are started to run. According to the working conditions, the fixing bolts 110 of the impeller adapter mechanism 11 can be loosened. 4. Move the adjustable impeller 1103 to a suitable position, then screw the fixing bolt 1104 into the corresponding fixing hole 1102 and tighten it. Adjust the spacing of the adjustable impeller 1103. The adjustable impeller 1103 rotates at high speed with the fixed shaft 1101 to generate centrifugal force, which throws the slurry in the pump chamber 1 toward the outlet channel 7. The slurry is discharged from the pump body through the outlet channel 7, completing the conveying. Finally, during the operation of the pump body, the anti-slip pad 14 increases the friction with the mounting surface, and the fixing seat 12 and the shock-absorbing damper 13 absorb the vibration energy of the pump body, weaken the vibration amplitude, and reduce the wear of the parts. This is the working principle of this easy-to-maintain slurry pump body.

Claims

1. A slurry pump body that is easy to maintain, comprising a pump chamber (1) and a slot (2), characterized in that, The outer surface of the pump chamber (1) is provided with a slot (2), and a quick-release maintenance mechanism (3) is engaged on the outer surface of the slot (2). The quick-release maintenance mechanism (3) includes a pump body shell (301) located on the outer surface of the pump chamber (1), and a sealing ring (302) is fixedly connected to the inner wall of the pump body shell (301). An elastic rod (303) is fixedly connected to the inner wall of the sealing ring (302), and a fastening pin (304) is connected through the elastic rod (303).

2. The slurry pump body for easy maintenance according to claim 1, characterized in that, The top of the pump body housing (301) is fixedly connected to the inlet (4), and the inner surface of the inlet (4) is fixedly connected to the guide cone (5).

3. The slurry pump body for easy maintenance according to claim 2, characterized in that, The inner surface of the guide cone (5) is provided with a guide hole (6), and an outlet channel (7) is fixedly connected to one side of the pump chamber (1).

4. The slurry pump body for easy maintenance according to claim 3, characterized in that, A connecting flange (8) is fixedly connected to one side of the outlet channel (7), and a connecting bolt (9) is threaded onto the inner surface of the connecting flange (8).

5. The slurry pump body for easy maintenance according to claim 1, characterized in that, A motor (10) is provided on one side of the pump chamber (1), and an impeller adapter mechanism (11) is fixedly connected to the output end of the motor (10).

6. The slurry pump body for easy maintenance according to claim 5, characterized in that, The impeller adapter mechanism (11) includes a fixed shaft (1101) fixedly connected to the output end of the motor (10), with a fixed hole (1102) on the inner surface of the fixed shaft (1101), an adjustable impeller (1103) on the outer surface of the fixed shaft (1101), and a fixing bolt (1104) threadedly connected to the inner surface of the adjustable impeller (1103).

7. A slurry pump body for easy maintenance according to claim 6, characterized in that, The outer surface of the motor (10) is fixedly connected to a mounting base (12), and the bottom of the mounting base (12) is fixedly connected to a shock-absorbing damper (13), and the bottom of the shock-absorbing damper (13) is fixedly connected to an anti-slip pad (14).