Vane pump with variable vane angle

Abstract

The utility model relates to the technical field of vane pumps, in particular to a vane pump with variable vane angles, which comprises a base, a pump seat is fixedly mounted at the front end of the base, a pump casing is fixedly mounted at the front end of the pump seat, a front cover is fixedly mounted on the front side of the pump casing, and a pump shaft is rotatably connected in the pump seat. An impeller is fixedly installed at the front end of the pump shaft and located in the pump shell. The impeller comprises a fixed disc fixedly installed at the front end of the pump shaft, an adjusting ring is rotationally connected to the edge of the front face of the fixed disc, multiple sets of blade bodies are rotationally connected to the front face of the adjusting ring, and the ends, close to the pump shaft, of the multiple sets of blade bodies are slidably connected with the fixed disc through guide grooves. By means of the design, the angle of the vane can be adjusted, the vane pump can adjust flow and pressure according to working condition requirements, and adaptability and efficiency are improved.

Description

Technical Field

[0001] This utility model relates to the field of vane pump technology, and specifically to a vane pump with variable vane angle. Background Technology

[0002] Pumps are mainly classified into gear pumps, rotary pumps, vane pumps, screw pumps, and piston pumps. Among them, gear pumps and rotary pumps are mostly used for constant displacement because their special structures make variable displacement difficult to achieve. Vane pumps, on the other hand, are suitable for the design of variable displacement mechanisms and the realization of variable displacement effects due to their structural flexibility; therefore, most variable displacement pumps on the market are vane pumps.

[0003] A vane pump is a device that uses the centrifugal force generated by rotating vanes to transport fluids. Its basic working principle is to use the movement of rotating vanes to give the fluid kinetic energy and pressure, thereby realizing the transport and pressurization of the fluid. However, in current vane pumps, the vane angle on the impeller inside the pump body is fixed during use, and the flow rate and pressure cannot be adjusted according to the working conditions. This makes it difficult for the pump body to achieve the best operating conditions, resulting in low adaptability and efficiency.

[0004] Therefore, it is of great importance to design a vane pump with variable blade angle to solve the above-mentioned defects. Utility Model Content

[0005] To address the shortcomings of existing technologies, this utility model designs a vane pump with variable blade angle. This vane pump aims to solve the technical problem that, under existing technologies, the blade angle of the impeller inside the pump body is fixed during use, and the flow rate and pressure cannot be adjusted according to the working conditions, making it difficult for the pump body to achieve the optimal operating conditions, thus reducing its adaptability and efficiency.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A vane pump with variable blade angle includes a base, a pump seat fixedly installed at the front end of the base, a pump casing fixedly installed at the front end of the pump seat, a front cover fixedly installed on the front side of the pump casing, a pump shaft rotatably connected inside the pump seat, and an impeller fixedly installed at the front end of the pump shaft and inside the pump casing.

[0008] The impeller includes a fixed disk fixedly installed at the front end of the pump shaft. An adjusting ring is rotatably connected to the edge of the front side of the fixed disk. Multiple sets of blade bodies are rotatably connected to the front side of the adjusting ring, and the ends of the multiple sets of blade bodies near the pump shaft are slidably connected to the fixed disk through guide grooves. Multiple sets of adjusting grooves are equally spaced inside the adjusting ring. The front side of the fixed disk is slidably connected to the adjusting grooves through multiple sets of sliding pillars. The sliding pillars are fixedly connected to the fixed disk. A locking pillar is fixedly connected to the front side of the fixed disk and inside one of the adjusting grooves, and the locking pillar is slidably connected to the adjusting groove.

[0009] As a preferred embodiment of this utility model, an installation hole is provided inside the fixed plate at a position corresponding to the pump shaft, and a fixing nut is threaded to the front end of the pump shaft.

[0010] As a preferred embodiment of this utility model, each of the multiple sets of blade bodies is rotatably connected to a connecting shaft. The front end of the connecting shaft is provided with a hexagonal groove, and the rear end of the connecting shaft is threadedly connected to a fixed disc.

[0011] As a preferred embodiment of this utility model, the locking post is internally threaded with an adjusting stud, and a spring is fixedly connected to one end of the adjusting stud located inside the locking post. A push block is fixedly connected to the end of the spring away from the adjusting stud. Two sets of locking balls are movably installed inside the locking post and outside the push block. Multiple sets of slots adapted to the locking balls are opened on the inner side of the adjusting groove.

[0012] As a preferred embodiment of this utility model, a drive motor is fixedly installed at the rear end of the top of the base, and the drive end of the drive motor is fixedly connected to the pump shaft through a coupling.

[0013] As a preferred embodiment of this utility model, reinforcing ribs are fixedly connected to both the left and right sides of the pump base, and an oil nozzle is installed on the upper surface of the pump base.

[0014] As a preferred embodiment of this utility model, the front cover is fixedly connected to the pump housing by multiple sets of mounting screws, and a cleaning stud is threadedly connected to the bottom end of the front cover.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] In this invention, the impeller design allows the locking pin to release the locking of the adjusting ring before use, enabling the adjusting ring to rotate. During rotation, multiple sliding pins slide inside the adjusting groove, ensuring stable rotation. Rotating the adjusting ring drives multiple sets of blade bodies to rotate as well. Simultaneously, these blade bodies slide inside the guide groove at one end, oscillating under its guidance. After adjustment, the locking pin secures the adjusting ring, allowing simultaneous adjustment of the angles of multiple blade bodies. This enables the vane pump to adjust flow and pressure according to operating conditions, improving adaptability and efficiency. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 This is a schematic diagram of the internal structure of the pump casing of this utility model;

[0019] Figure 3 This is a schematic diagram of the impeller structure of this utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of the guide groove of this utility model;

[0021] Figure 5 This is a schematic diagram of the connecting shaft structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the external structure of the locking post of this utility model;

[0023] Figure 7 This is a schematic diagram of the internal structure of the locking post of this utility model.

[0024] In the diagram: 1. Base; 101. Drive motor; 102. Coupling; 2. Pump base; 201. Reinforcing rib; 202. Oil filler; 3. Pump casing; 4. Front cover; 401. Mounting screw; 402. Cleaning stud; 5. Pump shaft; 6. Impeller; 601. Fixed plate; 602. Adjusting ring; 603. Blade body; 604. Guide groove; 605. Adjusting groove; 606. Sliding column; 607. Locking column; 608. Fixing nut; 609. Connecting shaft; 610. Adjusting stud; 611. Spring; 612. Push block; 613. Ball retainer; 614. Slot. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0026] Example: Please refer to Figures 1-7 This utility model provides a technical solution:

[0027] A vane pump with variable blade angle includes a base 1, a pump seat 2 fixedly installed at the front end of the base 1, a pump casing 3 fixedly installed at the front end of the pump seat 2, a front cover 4 fixedly installed on the front side of the pump casing 3, a pump shaft 5 rotatably connected inside the pump seat 2, and an impeller 6 fixedly installed at the front end of the pump shaft 5 and inside the pump casing 3.

[0028] First, in this embodiment, the impeller 6 has the following specific structure:

[0029] The impeller 6 includes a fixed disk 601 fixedly mounted on the front end of the pump shaft 5. An adjusting ring 602 is rotatably connected to the edge of the front side of the fixed disk 601. Multiple sets of blade bodies 603 are rotatably connected to the front side of the adjusting ring 602, and the ends of the multiple sets of blade bodies 603 near the pump shaft 5 are slidably connected to the fixed disk 601 via guide grooves 604. Multiple sets of adjusting grooves 605 are evenly spaced inside the adjusting ring 602. The front side of the fixed disk 601 is slidably connected to the adjusting grooves 605 via multiple sets of sliding pillars 606, which are fixedly connected to the fixed disk 601. A locking pillar 607 is fixedly connected to the front side of the fixed disk 601, located inside one of the adjusting grooves 605, and is slidably connected to the adjusting groove 605. Before using the impeller 6, first operate... Locking pin 607 releases the locking of adjusting ring 602, allowing adjusting ring 602 to rotate. When adjusting ring 602 rotates, multiple sets of sliding pins 606 slide inside adjusting groove 605, enabling adjusting ring 602 to rotate stably. Rotating adjusting ring 602 drives multiple sets of blade bodies 603 to rotate as well. At the same time, one end of multiple sets of blade bodies 603 located in guide groove 604 slides inside guide groove 604. Under the guidance of guide groove 604, multiple sets of blade bodies 603 swing. After adjustment, locking pin 607 is used to fix adjusting ring 602, thereby enabling synchronous adjustment of the angle of multiple sets of blade bodies 603. This allows the vane pump to adjust flow and pressure according to operating conditions, improving adaptability and efficiency.

[0030] Furthermore, the fixed plate 601 has an installation hole at the position corresponding to the pump shaft 5. The front end of the pump shaft 5 is threaded with a fixing nut 608. After the fixed plate 601 is put on the front end of the pump shaft 5, it is fixed by the fixing nut 608, which facilitates the disassembly and assembly of the impeller 6.

[0031] Then, each of the multiple blade bodies 603 is rotatably connected to a connecting shaft 609. The front end of the connecting shaft 609 is provided with a hexagonal groove, and the rear end of the connecting shaft 609 is threadedly connected to the fixed plate 601. The blade body 603 can rotate under the connection of the connecting shaft 609, and the connecting shaft 609 can be disassembled, so that the blade body 603 can be disassembled and installed, thereby facilitating the disassembly, installation and replacement of the blade body 603.

[0032] Furthermore, the locking post 607 is internally threaded with an adjusting stud 610. A spring 611 is fixedly connected to one end of the adjusting stud 610 inside the locking post 607, and a pushing block 612 is fixedly connected to the other end of the spring 611 away from the adjusting stud 610. Two sets of retaining balls 613 are movably installed inside the locking post 607 and outside the pushing block 612. Multiple sets of retaining grooves 614 are provided inside the adjusting groove 605 to fit the retaining balls 613. When adjusting the angle of multiple sets of blade bodies 603, the retaining balls 613 are located inside the locking post 607, allowing the locking post 607 to move within the adjusting groove 605. The inner sliding allows the adjusting ring 602 to rotate normally and adjust the angle of the blade body 603. According to the required adjustment angle, the corresponding slot 614 is moved to the outside of the ball 613. After adjustment, the adjusting stud 610 is turned inward towards the locking post 607, which compresses the spring 611 and drives the push block 612 to move. The push block 612 pushes the ball 613 out of the locking post 607, so that the ball 613 is inserted into the slot 614 inside the adjusting ring 602, thereby fixing the adjusting ring 602 and fixing the adjusted angle of the blade body 603.

[0033] Among them, a drive motor 101 is fixedly installed at the rear end of the top of the base 1. The drive end of the drive motor 101 is fixedly connected to the pump shaft 5 through a coupling 102. The drive motor 101 drives the pump shaft 5 to rotate under the connection of the coupling 102, so that the pump shaft 5 drives the impeller 6 to rotate and start the vane pump to work.

[0034] Secondly, reinforcing ribs 201 are fixedly connected to both the left and right sides of the pump base 2, and an oiling nozzle 202 is installed on the upper surface of the pump base 2. The reinforcing ribs 201 can improve the structural strength of the pump base 2, thereby ensuring the working stability of the pump base 2. At the same time, the oiling nozzle 202 can add lubricating oil to the inside of the pump base 2, thereby ensuring the lubrication of the pump shaft 5 and making it work stably.

[0035] Finally, the front cover 4 is fixedly connected to the pump housing 3 by multiple sets of mounting screws 401. The bottom end of the front cover 4 is threaded with a cleaning stud 402. The front cover 4 is installed on the front of the pump housing 3 by mounting screws 401, which facilitates disassembly and assembly for inspection and maintenance of the pump housing 3. The cleaning stud 402 can be unscrewed to clean the inside of the pump housing 3 without opening the front cover 4.

[0036] In this embodiment, the specific implementation scenario is as follows: Before using the impeller 6, the locking pin 607 is operated to release the locking of the adjusting ring 602, allowing the adjusting ring 602 to rotate. When the adjusting ring 602 rotates, multiple sets of sliding pins 606 slide inside the adjusting groove 605, allowing the adjusting ring 602 to rotate stably. By rotating the adjusting ring 602, multiple sets of blade bodies 603 can be driven to rotate along with it. At the same time, one end of the multiple sets of blade bodies 603 located in the guide groove 604 slides inside the guide groove 604. Under the guidance of the guide groove 604, the multiple sets of blade bodies 603 are driven to swing. After the adjustment is completed, the locking pin 607 is used to fix the adjusting ring 602, thereby enabling the angle of the multiple sets of blade bodies 603 to be adjusted simultaneously. The entire operation process is simple and convenient. Compared with existing vane pumps, this utility model can adjust the angle of the blades through design, allowing the vane pump to adjust the flow and pressure according to the working conditions, improving adaptability and efficiency.

[0037] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vane pump with variable vane angle comprising a base (1), characterized in that: The front end of the base (1) is fixedly installed with a pump seat (2), the front end of the pump seat (2) is fixedly installed with a pump shell (3), the front surface of the pump shell (3) is fixedly installed with a front cover (4), the inside of the pump seat (2) is rotatably connected with a pump shaft (5), the front end of the pump shaft (5) and inside the pump shell (3) is fixedly installed with an impeller (6); The impeller (6) comprises a fixed disc (601) fixedly installed at the front end of the pump shaft (5), the edge of the front surface of the fixed disc (601) is rotatably connected with an adjusting ring (602), the front surface of the adjusting ring (602) is rotatably connected with a plurality of groups of blade bodies (603), one end of the plurality of groups of blade bodies (603) close to the pump shaft (5) is slidably connected with the fixed disc (601) through a guide groove (604), a plurality of groups of adjusting grooves (605) are equidistantly arranged in the inside of the adjusting ring (602), the front surface of the fixed disc (601) is slidably connected with the adjusting grooves (605) through a plurality of groups of sliding columns (606), the sliding columns (606) are fixedly connected with the fixed disc (601), the front surface of the fixed disc (601) and inside one group of the adjusting grooves (605) is fixedly connected with a locking column (607), and the locking column (607) is slidably connected with the adjusting grooves (605).

2. The vane angle variable vane pump according to claim 1, characterized by: An installation hole is arranged at a position corresponding to the pump shaft (5) in the inside of the fixed disc (601), and a fixed nut (608) is threadedly connected with the front end of the pump shaft (5).

3. The vane angle variable vane pump according to claim 1, characterized by: A connecting shaft (609) is rotatably connected in the inside of each of the plurality of groups of blade bodies (603), a hexagonal groove is arranged at the front end of the connecting shaft (609), and the rear end of the connecting shaft (609) is threadedly connected with the fixed disc (601).

4. The vane angle variable vane pump according to claim 1, characterized by: A adjusting screw column (610) is threadedly connected in the inside of the locking column (607), one end of the adjusting screw column (610) in the inside of the locking column (607) is fixedly connected with a spring (611), the end of the spring (611) away from the adjusting screw column (610) is fixedly connected with a pushing block (612), two groups of clamping balls (613) are movably installed in the inside of the locking column (607) and outside the pushing block (612), and a plurality of groups of clamping grooves (614) matched with the clamping balls (613) are arranged in the inside of the adjusting grooves (605).

5. The vane angle variable vane pump according to claim 1, characterized by: A driving motor (101) is fixedly installed at the rear end of the top of the base (1), and the driving end of the driving motor (101) is fixedly connected with the pump shaft (5) through a shaft coupling (102).

6. The vane angle variable vane pump according to claim 1, characterized by: The left and right sides of the pump seat (2) are fixedly connected with reinforcing rib plates (201), and the upper surface of the pump seat (2) is installed with a refueling nozzle (202).

7. The vane angle variable vane pump according to claim 1, characterized by: The front cover (4) is fixedly connected with the pump shell (3) through a plurality of groups of installation screws (401), and the bottom end of the front cover (4) is threadedly connected with a cleaning screw column (402).

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