Wear-resistant high-sealing plunger pump
By incorporating a cooling assembly into the high-sealing plunger pump, effective heat dissipation of the plunger and pump sleeve is achieved, solving the problem of reduced wear resistance caused by insufficient heat dissipation and improving the wear resistance and service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 江苏津润液压股份有限公司
- Filing Date
- 2025-06-16
- Publication Date
- 2026-05-15
AI Technical Summary
When existing high-sealing plunger pumps operate under high load for extended periods, insufficient heat dissipation leads to a decrease in the hardness of the metal material, softening of localized high-temperature areas, and a sharp drop in wear resistance.
A cooling assembly is installed in the plunger pump, including a connecting hole, a U-shaped tube, a through hole, a delivery pipe, a spiral hole, and a bellows. Coolant is circulated to dissipate heat from the plunger and pump sleeve, thereby improving the cooling effect.
This effectively avoids wear caused by plunger softening, thus improving the wear resistance and service life of the plunger pump.
Smart Images

Figure CN224245011U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of plunger pump technology, and more specifically, to a wear-resistant, high-sealing plunger pump. Background Technology
[0002] A high-seal piston pump is a specially designed piston pump, characterized by its extremely high sealing performance. It is suitable for conveying high-pressure, high-viscosity, corrosive, or solid-particle-containing media. For example, the plunger pump disclosed in publication number "CN221120267U" includes an upper cover, a rotating shaft assembly, a swashplate assembly, a drive assembly, and a plunger pump assembly. The upper cover has a rotating hole with a limiting protrusion protruding from the inner wall of the rotating hole. The rotating shaft assembly includes a first bearing and a rotating shaft. The first bearing is installed in the rotating hole, and the rotating shaft passes through the inner ring of the first bearing. The limiting protrusion abuts against one end of the first bearing, and the other end of the first bearing is restricted on the rotating shaft. The swashplate assembly includes a swashplate and a second bearing. The swashplate is connected to one end of the rotating shaft, and the limiting protrusion is located between the swashplate and the first bearing. The swashplate has an inclined surface. The opposite ends of the second bearing abut against the swashplate and the upper cover, respectively. The drive assembly is used to drive the rotating shaft to rotate. The plunger pump assembly includes a plunger rod, and the inclined surface is used to drive the plunger rod to move back and forth along the axial direction of the plunger rod to realize pumping.
[0003] However, in the above technical solution, the plunger pump adopts natural cooling during use, which is insufficient for heat dissipation. As a result, when the plunger pump is running under high load for a long time, the hardness of the metal material will decrease as the temperature rises, and the local high temperature area will soften first, ultimately leading to a sharp drop in the wear resistance of the plunger pump. Utility Model Content
[0004] The main objective of this invention is to provide a wear-resistant, high-sealing plunger pump that can effectively solve the problems in the background art.
[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:
[0006] A wear-resistant, high-seal plunger pump includes a base, a pump sleeve fixedly mounted on the upper surface of the base, two uprights fixedly mounted on both sides of the upper surface of the base, a top plate fixedly mounted on the upper end of each upright, a cylinder fixedly mounted on the upper end of the top plate, the output end of the cylinder passing through the top plate and fixedly mounted on a connecting plate, a plunger fixedly mounted on the lower surface of the connecting plate, and a cooling component for cooling provided on one side of the connecting plate.
[0007] Preferably, the cooling assembly includes a plurality of first connection holes, each of which is formed through the upper surface of the connecting plate, and a plurality of second connection holes are formed on the upper surface of each plunger, each of which is connected to a corresponding first connection hole.
[0008] Preferably, a plurality of U-shaped tubes are fixedly installed on the upper surface of the connecting plate, and the opening of each U-shaped tube is connected to the corresponding first connecting hole.
[0009] Each plunger has several through holes, and each through hole is connected to a corresponding second connecting hole at both ends.
[0010] Preferably, a number of brackets are fixedly installed on the upper surface of the connecting plate, and a conveying pipe is fixedly installed through one side of each bracket, with the opening of each conveying pipe connected to the corresponding first connecting hole.
[0011] Preferably, the upper end of the pump sleeve is provided with a spiral hole.
[0012] Preferably, a water outlet pipe is fixedly installed at one end of the pump sleeve, and a water inlet pipe is fixedly installed at the upper end of the pump sleeve. The openings of both the water outlet pipe and the water inlet pipe are connected to the spiral hole.
[0013] A corrugated pipe is fixedly installed between one of the delivery pipes and the inlet pipe.
[0014] Compared with the prior art, the present invention has the following beneficial effects:
[0015] (1) The operator controls the cylinder to move the connecting plate and the plunger, so that the plunger slides along the pump sleeve seal and the plunger pump operates. When the plunger pump is operating, the operator pours coolant into the first connecting hole so that the coolant can enter the second connecting hole through the first connecting hole, thereby dissipating heat from the plunger that moves along the pump sleeve seal and preventing it from softening and causing a sudden drop in wear. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the overall structure of a wear-resistant, high-seal plunger pump according to the present invention;
[0017] Figure 2 This is a top view schematic diagram of the wear-resistant, high-sealing plunger pump of this utility model;
[0018] Figure 3 This utility model relates to a wear-resistant, high-sealing plunger pump. Figure 2 Schematic diagram of the cross-sectional structure at point AA;
[0019] Figure 4 This utility model relates to a wear-resistant, high-sealing plunger pump. Figure 2 Schematic diagram of the cross-sectional structure at point BB;
[0020] Figure 5 This utility model relates to a wear-resistant, high-sealing plunger pump. Figure 3 An enlarged schematic diagram of the structure at point A in the middle.
[0021] In the diagram: 1. Base; 2. Pump sleeve; 3. Corrugated pipe; 4. Upright pole; 5. Top plate; 6. Cylinder; 601. Connecting plate; 7. Plunger; 8. Cooling assembly; 801. First connecting hole; 802. Second connecting hole; 9. U-shaped pipe; 901. Through hole; 10. Bracket; 11. Delivery pipe; 12. Spiral hole; 13. Water outlet pipe; 14. Water inlet pipe. Detailed Implementation
[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.
[0023] like Figures 1-5 As shown, a wear-resistant, high-seal plunger pump includes a base 1, a pump sleeve 2 fixedly installed on the upper surface of the base 1, two uprights 4 fixedly installed on both sides of the upper surface of the base 1, a top plate 5 fixedly installed on the upper end of each upright 4, a cylinder 6 fixedly installed on the upper end of the top plate 5, the output end of the cylinder 6 passes through the top plate 5 and is fixedly installed with a connecting plate 601, a plunger 7 fixedly installed on the lower surface of the connecting plate 601, and a cooling component 8 for cooling is provided on one side of the connecting plate 601.
[0024] The cooling assembly 8 includes a plurality of first connection holes 801, each of which is formed through the upper surface of the connecting plate 601. Each plunger 7 has a plurality of second connection holes 802 formed on its upper surface, and each second connection hole 802 is connected to the corresponding first connection hole 801.
[0025] The operator controls cylinder 6 to move connecting plate 601 and plunger 7, causing plunger 7 to slide along the pump sleeve 2 seal, thus operating the plunger pump. When the plunger pump is operating, the operator pours coolant into the first connecting hole 801, allowing the coolant to enter the second connecting hole 802 through the first connecting hole 801, thereby dissipating heat from the plunger 7 that moves along the pump sleeve 2 seal and preventing it from softening and causing a sudden drop in wear.
[0026] In another embodiment of this utility model, a plurality of U-shaped tubes 9 are fixedly installed on the upper surface of the connecting plate 601, and the opening of each U-shaped tube 9 is connected to the corresponding first connecting hole 801.
[0027] The plunger 7 has several through holes 901, and each through hole 901 is connected to a corresponding second connecting hole 802 at both ends.
[0028] By setting up the U-shaped tube 9 and the through hole 901, the coolant entering from the corresponding first connection hole 801 can flow through each first connection hole 801 and second connection hole 802 one by one through the U-shaped tube 9 and the through hole 901, without the need to fill each first connection hole 801 with coolant, thus improving the utilization efficiency of coolant.
[0029] In another embodiment of the present invention, a plurality of brackets 10 are fixedly installed on the upper surface of the connecting plate 601, and a conveying pipe 11 is fixedly installed through one side of each bracket 10, and the opening of each conveying pipe 11 is connected to the corresponding first connecting hole 801.
[0030] By setting up the delivery pipe 11, it is convenient to fill and drain the coolant.
[0031] In another embodiment of this utility model, a spiral hole 12 is provided through the upper end of the pump sleeve 2.
[0032] By setting the spiral hole 12, the operator can pour coolant into it. The coolant circulates in the spiral hole 12, thereby cooling the inner wall of the pump sleeve 2, increasing the cooling range and improving the cooling effect.
[0033] In another embodiment of this utility model, a water outlet pipe 13 is fixedly installed at one end of the pump sleeve 2, and a water inlet pipe 14 is fixedly installed at the upper end of the pump sleeve 2. The openings of the water outlet pipe 13 and the water inlet pipe 14 are both connected to the spiral hole 12.
[0034] A corrugated pipe 3 is fixedly installed between one of the delivery pipes 11 and the inlet pipe 14.
[0035] By setting the bellows 3, the coolant flowing out from one of the delivery pipes 11 can enter the spiral hole 12 through the bellows 3 without affecting the lifting and lowering of the plunger 7, thus further improving the utilization efficiency of the coolant.
[0036] The working principle of this wear-resistant, high-seal plunger pump:
[0037] During use, the operator controls the cylinder 6 to move the connecting plate 601 and the plunger 7, causing the plunger 7 to slide along the pump sleeve 2 seal, thus operating the plunger pump. While the plunger pump is operating, the operator pours coolant into the first connecting hole 801, allowing the coolant to enter the second connecting hole 802 through the first connecting hole 801, thereby dissipating heat from the plunger 7 that moves along the pump sleeve 2 seal and preventing it from softening and causing a sudden drop in wear.
[0038] Obviously, the above embodiments of this utility model are merely examples for clearly illustrating this utility model, and are not intended to limit the implementation of this utility model. For those skilled in the art, other variations or modifications can be made based on the above description. It is impossible to exhaustively list all the implementation methods here. Any obvious variations or modifications derived from the technical solutions of this utility model are still within the protection scope of this utility model.
Claims
1. A wear-resistant, high-seal plunger pump, comprising a base (1), characterized in that: A pump sleeve (2) is fixedly installed on the upper surface of the base (1). Two uprights (4) are fixedly installed on both sides of the upper surface of the base (1). A top plate (5) is fixedly installed on the upper end of each upright (4). A cylinder (6) is fixedly installed on the upper end of the top plate (5). The output end of the cylinder (6) passes through the top plate (5) and is fixedly installed with a connecting plate (601). A plunger (7) is fixedly installed on the lower surface of the connecting plate (601). A cooling component (8) for cooling is provided on one side of the connecting plate (601). The cooling assembly (8) includes a plurality of first connection holes (801), each of the first connection holes (801) being opened through the upper surface of the connecting plate (601), and each of the plungers (7) having a plurality of second connection holes (802) on its upper surface, each of the second connection holes (802) being connected to the corresponding first connection hole (801).
2. The wear-resistant, high-sealing plunger pump according to claim 1, characterized in that: A plurality of U-shaped tubes (9) are fixedly installed on the upper surface of the connecting plate (601), and the opening of each U-shaped tube (9) is connected to the corresponding first connecting hole (801); The plunger (7) has several through holes (901) inside, and each through hole (901) is connected to a corresponding second connecting hole (802) at both ends.
3. The wear-resistant, high-sealing plunger pump according to claim 2, characterized in that: A number of brackets (10) are fixedly installed on the upper surface of the connecting plate (601). Each bracket (10) has a conveying pipe (11) fixedly installed through one side. The opening of each conveying pipe (11) is connected to the corresponding first connecting hole (801).
4. The wear-resistant, high-sealing plunger pump according to claim 3, characterized in that: The upper end of the pump sleeve (2) is provided with a spiral hole (12).
5. The wear-resistant, high-sealing plunger pump according to claim 4, characterized in that: One end of the pump sleeve (2) is fixedly installed with a water outlet pipe (13), and the upper end of the pump sleeve (2) is fixedly installed with a water inlet pipe (14). The openings of the water outlet pipe (13) and the water inlet pipe (14) are connected to the spiral hole (12). A corrugated pipe (3) is fixedly installed between one of the conveying pipes (11) and the water inlet pipe (14).