A quick-disassembly split-type three-dimensional pump
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-17
- Publication Date
- 2026-08-14
AI Technical Summary
[0004]但是现有的高压力立式泵拆卸维护困难，电机与水泵主体的一体成型连接、前盖与主体的螺纹固定结构，导致设备检修时需拆解多个固定部件，尤其在叶轮、油封等易损件更换时耗时费力，同时流道加工与适配性不足，环形渐开流道依赖泵体与压板的凸凹点精准配合，一体成型工艺对加工精度要求极高，一旦部件磨损或尺寸偏差，易导致流道密封失效，影响高压性能
装置采用分体式结构设计，摒弃传统一体成型的刚性连接，泵体前盖与安装座的套接式固定、叶轮锁帽的独立固定，无需拆解大量部件即可快速更换叶轮、油封等易损件，大幅降低维护耗时，通过环形渐开流道通过分体成型与凸凹配合拼接，降低加工精度要求，同时保障流道密封性，避免因部件磨损导致的高压性能失效，整体设计兼顾高效工作与灵活维护，适用于多场景液体输送作业。
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Figure CN224634799U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of quick-release three-dimensional pump technology, and in particular to a split-type three-dimensional pump that can be quickly disassembled. Background Technology
[0002] In industrial circulating water systems, chemical liquid transportation, and large water tank water supply, high-pressure vertical pumps are used to achieve efficient and high-pressure liquid transportation. During operation, they must meet the requirement that the impeller is submerged by the minimum water level. The impeller is driven by a motor to rotate at high speed to generate centrifugal force, which converts the liquid into a high-pressure fluid to meet the high-pressure transportation needs. As industrial production places increasing demands on equipment maintenance efficiency, adaptability, and sealing reliability, simplifying the disassembly process and reducing maintenance costs while ensuring high-pressure transportation performance has become the core direction of high-pressure vertical pump design.
[0003] Most existing high-pressure vertical pumps adopt an integrated molding structure design. The motor and the pump body are connected by a fixed square plate and an integrated molding structure to ensure stable power transmission. The front cover of the pump body is fastened to the pump body by a threaded structure. A sealing ring is installed between the front cover and the pressure plate. The rear end of the pump body is equipped with a rear cover and an internal skeleton oil seal to form multiple sealing protections. At the same time, the impeller is connected to the impeller rod and fixed by an impeller locking cap with a sealing ring to protect the motor shaft from liquid corrosion.
[0004] However, existing high-pressure vertical pumps are difficult to disassemble and maintain. The one-piece molding connection between the motor and the pump body, and the threaded fixing structure between the front cover and the main body, require the disassembly of multiple fixed parts during equipment maintenance. In particular, it is time-consuming and labor-intensive to replace vulnerable parts such as impellers and oil seals. At the same time, the flow channel processing and adaptability are insufficient. The annular involute flow channel relies on the precise matching of the convex and concave points of the pump body and the pressure plate. The one-piece molding process has extremely high requirements for processing accuracy. Once the parts are worn or the dimensions are deviated, it is easy to cause the flow channel seal to fail, affecting the high pressure performance. Utility Model Content
[0005] Given the difficulties in disassembling and maintaining existing high-pressure vertical pumps, the integral molding connection between the motor and the pump body, and the threaded fixing structure between the front cover and the main body, multiple fixed components need to be disassembled during equipment maintenance. This is especially time-consuming and labor-intensive when replacing vulnerable parts such as impellers and oil seals. At the same time, the flow channel processing and adaptability are insufficient. The annular involute flow channel relies on the precise matching of the convex and concave points of the pump body and the pressure plate. The integral molding process has extremely high requirements for processing accuracy. Once the components are worn or the dimensions deviate, it is easy to cause the flow channel seal to fail, affecting the high-pressure performance. Therefore, this utility model is proposed.
[0006] Therefore, the purpose of this utility model is to adopt a split structure design for the device, abandoning the traditional rigid connection of one-piece molding. The front cover of the pump body is fixed by a sleeve-type connection with the mounting base, and the impeller lock cap is fixed independently. The impeller, oil seal and other vulnerable parts can be quickly replaced without disassembling a large number of parts, which greatly reduces maintenance time. The annular involute flow channel is split molding and convex-concave splicing to reduce the processing precision requirements, while ensuring the sealing of the flow channel and avoiding high pressure performance failure due to component wear. The overall design takes into account efficient operation and flexible maintenance, and is suitable for liquid transportation operations in multiple scenarios.
[0007] To solve the above technical problems, this utility model provides the following technical solution: a split-type three-dimensional pump that can be quickly disassembled, including a vertical pump in a high-pressure tank and a vertical long-shaft motor on one side of the vertical pump in the high-pressure tank. A motor long shaft is provided on one side of the vertical long-shaft motor, and one end of the motor long shaft is inserted into the inside of the vertical pump in the high-pressure tank. The pumping assembly includes a pump body mounting base installed on one side of the vertical pump inside the high-pressure tank, an impeller is provided inside the pump body mounting base, and an impeller locking cap is provided on one side of the impeller; The guide assembly includes a guide fixing plate installed inside the pump body mounting base, a limiting pressure plate is provided between the guide fixing plate and the impeller, and a pump body front cover is provided on one side of the guide fixing plate.
[0008] As a preferred embodiment of the quick-disassembly split-type three-dimensional pump of this utility model, the pump body front cover is sleeved inside the pump body mounting base, an inlet filter screen is provided on one side of the pump body front cover, a pump body inlet is opened on the inlet filter screen, and a guide connecting block is provided on one side of the guide fixing plate.
[0009] As a preferred embodiment of the quick-disassembly split-type three-dimensional pump of this utility model, wherein: a limiting pressure groove is opened on the inner side of the guide connecting block, one side of the limiting pressure plate is inserted into the inner side of the limiting pressure groove, one end of the limiting pressure plate is connected to the impeller, and one end of the impeller locking cap passes through the impeller and is inserted into the inner side of the motor long shaft.
[0010] As a preferred embodiment of the quick-disassembly split-type three-dimensional pump of this utility model, the pump body mounting base is provided with a pump body outlet on one side, and an annular involute flow channel is opened on one side of the guide fixing plate. The annular involute flow channel is connected to the inner side of the pump body outlet, and a threaded sleeve is fitted on the pump body outlet.
[0011] As a preferred embodiment of the quick-disassembly split-type three-dimensional pump of this utility model, wherein: a first pressure relief overflow port is provided on the vertical pump inside the high-pressure tank, a second pressure relief overflow port is provided on the vertical pump inside the high-pressure tank, the first pressure relief overflow port and the second pressure relief overflow port are connected to the inner side of the vertical pump inside the high-pressure tank, and a water tank is sleeved on the outer side of the vertical pump inside the high-pressure tank.
[0012] As a preferred embodiment of the quick-disassembly split-type three-dimensional pump of this utility model, wherein: a sealing and fixing plate is provided on one side of the water tank, the sealing and fixing plate is fixed on the vertical pump in the high-pressure tank, a sealing gasket is provided on one side of the sealing and fixing plate, and a water pump outlet pipe is provided on one side of the threaded sleeve.
[0013] As a preferred embodiment of the quick-disassembly split-type three-dimensional pump of this utility model, the water tank is provided inside the water tank, part of the vertical pump in the high-pressure tank is located inside the water, the water pump outlet pipe is suspended after passing through the water tank on one side, and two oil seals are provided inside the vertical pump in the high-pressure tank, each of the oil seals being sleeved on the long shaft of the motor.
[0014] The beneficial effects of this utility model are: The device adopts a split structure design, abandoning the traditional rigid connection of one-piece molding. The front cover of the pump body is fixed with the mounting base by a sleeve, and the impeller lock cap is fixed independently. The impeller, oil seal and other vulnerable parts can be quickly replaced without disassembling a large number of parts, which greatly reduces maintenance time. The annular involute flow channel is split molding and convex and concave splicing, which reduces the processing precision requirements, while ensuring the sealing of the flow channel and avoiding high pressure performance failure due to component wear. The overall design takes into account efficient operation and flexible maintenance, and is suitable for liquid transportation operations in multiple scenarios. Attached Figure Description
[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them: Figure 1 This is a schematic diagram of the overall structure of this utility model.
[0016] Figure 2 This is a partial structural diagram of the present utility model.
[0017] Figure 3 This is a front view structural diagram of the present utility model.
[0018] Figure 4 This is a schematic diagram of the inner structure of the water tank of this utility model.
[0019] Figure 5 This is a schematic diagram of the high-pressure vertical pump structure inside the tank according to this utility model.
[0020] Figure 6 This is a schematic diagram of the guide fixing plate structure of this utility model.
[0021] Explanation of reference numerals in the attached figures: 1. High-pressure vertical pump in tank; 2. Vertical long-shaft motor; 3. Motor long shaft; 4. Pump body mounting base; 5. Guide fixing plate; 6. Guide connecting block; 7. Limiting pressure groove; 8. Annular involute flow channel; 9. Pump body outlet; 10. Threaded sleeve; 11. No. 1 pressure relief overflow port; 12. No. 2 pressure relief overflow port; 13. Pump body front cover; 14. Pump body inlet; 15. Inlet filter screen; 16. Limiting pressure plate; 17. Impeller; 18. Oil seal; 19. Pump outlet pipe; 20. Water tank; 21. Sealing fixing plate; 22. Sealing gasket; 23. Impeller lock cap; 24. Water. Detailed Implementation
[0022] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Example 1
[0023] Reference Figure 1-4 This is the first embodiment of the present invention, which provides a split-type three-dimensional pump that can be quickly disassembled, including a vertical pump 1 in a high-pressure tank and a vertical long-shaft motor 2 on one side of the vertical pump 1 in the high-pressure tank. A motor long shaft 3 is provided on one side of the vertical long-shaft motor 2, and one end of the motor long shaft 3 is inserted into the inside of the vertical pump 1 in the high-pressure tank. It includes a pump body mounting base 4 installed on one side of the vertical pump 1 in the high-pressure tank. An impeller 17 is provided inside the pump body mounting base 4. An impeller locking cap 23 is provided on one side of the impeller 17. A pump body front cover 13 is sleeved on the inside of the pump body mounting base 4. An inlet filter screen 15 is provided on one side of the pump body front cover 13. A pump body inlet 14 is opened on the inlet filter screen 15. A guide connecting block 6 is provided on one side of the guide fixing plate 5. A limiting groove 7 is opened on the inner side of the guide connecting block 6. One side of the limiting pressure plate 16 is inserted into the inner side of the limiting groove 7. One end of the limiting pressure plate 16 is connected to the impeller 17. One end of the impeller locking cap 23 passes through the impeller 17 and is inserted into the inner side of the motor long shaft 3. A pump body outlet 9 is provided on one side of the pump body mounting base 4. An annular involute flow channel 8 is opened on one side of the guide fixing plate 5. The annular involute flow channel 8 is connected to the inner side of the pump body outlet 9. A threaded sleeve 10 is fitted on the pump body outlet 9. Example 2
[0024] Reference Figure 3-6This is the second embodiment of the present invention. The difference between this embodiment and the first embodiment is that it includes a guide fixing plate 5 installed inside the pump body mounting base 4. A limiting pressure plate 16 is provided between the guide fixing plate 5 and the impeller 17. A pump body front cover 13 is provided on one side of the guide fixing plate 5. A first pressure relief overflow port 11 is opened on the vertical pump 1 in the high pressure tank. A second pressure relief overflow port 12 is opened on the vertical pump 1 in the high pressure tank. The first pressure relief overflow port 11 and the second pressure relief overflow port 12 are connected to the inside of the vertical pump 1 in the high pressure tank. A water tank 20 is sleeved on the outside of the vertical pump 1 in the high pressure tank. A sealing plate 21 is provided on one side of the water tank 20. The sealing plate 21 is fixed on the vertical pump 1 in the high-pressure tank. A sealing gasket 22 is provided on one side of the sealing plate 21. A water pump outlet pipe 19 is provided on one side of the threaded sleeve 10. Water 24 is provided inside the water tank 20. Part of the vertical pump 1 in the high-pressure tank is located inside the water 24. The water pump outlet pipe 19 passes through the water tank 20 and is suspended. Two oil seals 18 are provided inside the vertical pump 1 in the high-pressure tank. Each oil seal 18 is sleeved on the long shaft 3 of the motor.
[0025] In use, the vertical long-shaft motor 2 is fixed in a vertical manner, and the vertical pump 1 in the high-pressure tank on one side extends vertically downward as the pump head, partially immersed in the water 24 in the water tank 20. It is necessary to ensure that the minimum water level completely submerges the impeller 17 to meet the basic water suction conditions for liquid transportation. One end of the sealing and fixing plate 21 is connected to the vertical long-shaft motor 2, and the other end is fixed to the vertical pump 1 in the high-pressure tank through an integral molding structure. The pump body front cover 13 is threaded and fitted inside the pump body mounting base 4. With the help of the sealing gasket 22, the connection is sealed to prevent fluid leakage. At the same time, the water inlet filter screen 15 is fixed on one side of the pump body front cover 13 to filter impurities in the water and prevent clogging of the pump chamber.
[0026] An annular involute flow channel 8 is formed on one side of the guide fixing plate 5, and another part of the annular involute flow channel 8 is integrally formed on the surface of the limiting pressure plate 16. The two protrusions of the pump body mounting seat 4 and the corresponding two recesses of the limiting pressure plate 16 engage with each other, so that the two parts of the flow channel are spliced to form a complete annular involute closed flow channel. This split structure design not only reduces the processing accuracy requirements and manufacturing difficulty of a single complete flow channel, but also ensures the sealing of the flow channel through the convex and concave fit, providing a structural basis for the generation of high-pressure fluid. At the same time, the guide connecting block 6 on one side of the guide fixing plate 5 has a limiting pressure groove 7, and one side of the limiting pressure plate 16 is inserted into the limiting pressure groove 7 to further fix the position of the limiting pressure plate 16 and prevent the flow channel from being misaligned under high-pressure conditions.
[0027] When the vertical long-shaft motor 2 is started, its output shaft drives the motor long shaft 3 to rotate at high speed. Since the impeller 17 is fixed to the motor long shaft 3 through the impeller locking cap 23, and the impeller 17 and the impeller rod form a rigid connection, the rotational power of the motor long shaft 3 is directly transmitted to the impeller 17, so that the impeller 17, the impeller rod and the motor long shaft 3 rotate synchronously at high speed. The two oil seals 18 inside the vertical pump 1 in the high-pressure tank are sleeved on the motor long shaft 3, which can effectively prevent water in the pump chamber from entering the interior of the vertical long-shaft motor 2, avoid the motor from being damaged by moisture, and ensure the continuity of power transmission.
[0028] The high-speed rotation of the impeller 17 generates centrifugal force, which creates negative pressure in the sealed pump chamber formed by the pump body mounting base 4, the pump body front cover 13, and the limiting pressure plate 16. Under the pressure difference between the external atmospheric pressure and the negative pressure in the pump chamber, the water 24 in the water tank 20 enters the pump chamber through the inlet filter screen 15 and the pump body inlet 14 to complete the water intake. The water entering the pump chamber is thrown towards the annular involute flow channel 8 by the high-speed rotating impeller 17. It gradually accelerates along the flow channel trajectory. At the same time, the gradual change design of the flow channel cross section makes the water pressure continuously increase, eventually forming a high-pressure fluid.
[0029] High-pressure fluid flows along the annular involute channel 8 to the pump body outlet 9, passes through the threaded sleeve 10 fitted on the pump body outlet 9, enters the water pump outlet pipe 19 connected thereto, and finally passes through the water tank 20 to be transported to the target location, realizing liquid transportation under high-pressure conditions. When the pressure in the pump chamber is too high due to abnormal conditions, the first pressure relief overflow port 11 and the second pressure relief overflow port 12 on the vertical pump 1 in the high-pressure tank will automatically open, returning part of the high-pressure fluid to the water tank 20, realizing pressure relief and overflow, and avoiding damage to the pump body or pipeline due to overpressure.
[0030] The remaining structure is the same as that in Example 1.
[0031] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.
Claims
1. A quick-disassembly, split-type three-dimensional pump, characterized in that: It includes a vertical pump (1) in a high-pressure tank and a vertical long-shaft motor (2) on one side of the vertical pump (1) in the high-pressure tank. A motor long shaft (3) is provided on one side of the vertical long-shaft motor (2), and one end of the motor long shaft (3) is inserted into the inside of the vertical pump (1) in the high-pressure tank. The pumping assembly includes a pump body mounting base (4) installed on one side of the vertical pump (1) in the high-pressure tank. An impeller (17) is provided on the inner side of the pump body mounting base (4), and an impeller lock cap (23) is provided on one side of the impeller (17). The guide assembly includes a guide fixing plate (5) installed inside the pump body mounting base (4), a limiting pressure plate (16) is provided between the guide fixing plate (5) and the impeller (17), and a pump body front cover (13) is provided on one side of the guide fixing plate (5).
2. The quick detachable split type three-dimensional pump according to claim 1, characterized in that: The pump body front cover (13) is fitted inside the pump body mounting base (4). The pump body front cover (13) has an inlet filter screen (15) on one side. The inlet filter screen (15) has a pump body inlet (14). The guide fixing plate (5) has a guide connecting block (6) on one side.
3. The quick detachable split type three-dimensional pump according to claim 2, characterized in that: The guide connecting block (6) has a limiting groove (7) on its inner side. One side of the limiting plate (16) is inserted into the limiting groove (7). One end of the limiting plate (16) is connected to the impeller (17). One end of the impeller lock cap (23) passes through the impeller (17) and is inserted into the inner side of the motor long shaft (3).
4. The quick detachable split type three-dimensional pump according to claim 3, characterized in that: The pump body mounting base (4) has a pump body outlet (9) on one side, and an annular involute flow channel (8) is opened on one side of the guide fixing plate (5). The annular involute flow channel (8) is connected to the inner side of the pump body outlet (9). A threaded sleeve (10) is fitted on the pump body outlet (9).
5. The quick detachable split type three-dimensional pump according to claim 4, characterized in that: The high-pressure tank vertical pump (1) has a first pressure relief overflow port (11) and a second pressure relief overflow port (12). The first pressure relief overflow port (11), the second pressure relief overflow port (12), and the inner side of the high-pressure tank vertical pump (1) are connected. A water tank (20) is sleeved on the outer side of the high-pressure tank vertical pump (1).
6. The quick detachable split type three-dimensional pump according to claim 5, characterized in that: A sealing plate (21) is provided on one side of the water tank (20). The sealing plate (21) is fixed on the vertical pump (1) in the high pressure tank. A sealing gasket (22) is provided on one side of the sealing plate (21). A water pump outlet pipe (19) is provided on one side of the threaded sleeve (10).
7. A quick-disassembly split-type three-dimensional pump according to claim 6, characterized in that: Water (24) is provided inside the water tank (20). A portion of the vertical pump (1) in the high-pressure tank is located inside the water (24). The water pump outlet pipe (19) is suspended after passing through the water tank (20) on one side. Two oil seals (18) are provided inside the vertical pump (1) in the high-pressure tank. Each oil seal (18) is sleeved on the long shaft (3) of the motor.