Vane type oil pump rotor convenient to disassemble and assemble

Abstract

The utility model relates to the technical field of oil pump rotors, and discloses a vane type oil pump rotor convenient to disassemble and assemble, which comprises an oil pump rotating shaft, a positioning hole is formed in the outer surface of the oil pump rotating shaft, a connecting cover is fixedly mounted on the outer surface of the oil pump rotating shaft, and a first mounting hole is formed in the outer surface of the connecting cover. And a mounting bolt I is arranged on the outer surface of the connecting cover through a mounting hole I. According to the vane type oil pump rotor convenient to disassemble and assemble, when a plurality of vanes are mounted, the second vane rotor can be connected with the limiting groove through the clamping cover, and then after the vanes are assembled, the second vane rotor is connected with the limiting groove through the clamping cover; connection between the multiple first blade rotors and the multiple second blade rotors is further reinforced through cooperation with the connecting long bolts, when the oil pump operates at a high speed, centrifugal force and other acting force can be effectively resisted, looseness and displacement between the rotors are prevented, then the rotors are installed on a rotating shaft of the oil pump, multiple installation modes can be achieved, and the service life of the oil pump is prolonged. The diversity of the whole device is improved.

Description

Technical Field

[0001] This utility model relates to the field of oil pump rotor technology, specifically a vane-type oil pump rotor that is easy to disassemble and assemble. Background Technology

[0002] The oil pump is an indispensable tool in the engine lubrication system, and the inner rotor of the oil pump is one of its core components. The oil pump rotor consists of a rotor body and a rotor shaft, with the rotor shaft mounted on the inner rotor body. During use, the rotor shaft is used to connect to the power system outside the oil pump to drive the inner rotor to rotate. The vane oil pump rotor is one type of rotor with variable displacement. The common structure is as follows: there is a shaft hole in the center, and the hole is surrounded by vane slots of equal width. The vanes are directly inserted into the vane slots. When the rotor rotates with the main shaft, it drives the vanes to rotate in the pump chamber, transferring oil from the low-pressure area of ​​the pump chamber to the high-pressure area, thereby achieving the purpose of pumping oil.

[0003] Chinese Utility Model Patent Publication No. CN 215927775 U discloses a vane-type oil pump rotor. This vane-type oil pump rotor uses an elastic fixing member to insert and remove the vanes, which effectively and conveniently fixes the vanes inserted into the vane slots. At the same time, the wave grooves set on the outer circle increase the inflow of oil and increase the flow rate. The friction wall set on the outer ring wall effectively prevents the movement of the vanes. However, although this vane-type oil pump rotor can effectively fix the vanes inserted into the vane slots, it is not convenient to install a single vane on the outer surface of the rotating shaft, nor is it convenient to disassemble and install multiple vanes on the rotating shaft, resulting in poor overall rotor practicality. Summary of the Invention

[0004] The technical problem to be solved by this utility model is to provide a vane-type oil pump rotor that is easy to disassemble and assemble. It can effectively solve the problem that although the existing technology can effectively fix the vanes inserted into the vane slots, it is not easy to install a single vane to the shaft when the vanes are installed on the outer surface of the shaft, nor is it easy to disassemble and assemble multiple vanes to the shaft, resulting in poor overall rotor practicality.

[0005] The technical solution adopted by this utility model is: a vane-type oil pump rotor that is easy to disassemble and assemble, including an oil pump shaft, a positioning hole is opened on the outer surface of the oil pump shaft, a connecting cover is fixedly installed on the outer surface of the oil pump shaft, an installation hole is opened on the outer surface of the connecting cover, an installation bolt is provided on the outer surface of the connecting cover through the installation hole, a first vane rotor and a second vane rotor are provided on the outer surface of the oil pump shaft, the first vane rotor has a connecting hole, a through groove and an installation hole, an installation cover is fixedly installed on the outer surface of the first vane rotor, a limit groove is opened on the outer surface of the installation cover, a slot and an installation hole are opened on the outer surface of the second vane rotor, and an installation bolt is provided on the outer surface of the second vane rotor.

[0006] Preferably, the first blade rotor is adapted to the connecting cover through a through slot, and the through slot and the connecting cover have a circular cross-section.

[0007] With the above technical solution, during installation, the through slot of the first blade rotor is aligned with the connecting cover, and then inserted along the circumference of the connecting cover to make them fit together. The matching of the through slot and the circular structure of the connecting cover ensures that the first blade rotor is accurately installed on the connecting cover. The matching of the circular structure can reduce jamming and misalignment during installation, improve installation efficiency, and ensure that the first blade rotor rotates smoothly around the connecting cover when the oil pump is running, reducing shaking and noise during operation and improving the working stability of the oil pump.

[0008] Preferably, the mounting bolt 1 penetrates the mounting hole 1 and the mounting hole 2 and extends to the inner surface of the positioning hole. There are multiple identical positioning holes, and the multiple positioning holes are equidistantly distributed.

[0009] With the above technical solution, after the first blade rotor is initially installed with the connecting cover through the through slot, the mounting bolt 1 is passed through the mounting hole 1 of the connecting cover and the mounting hole 2 of the first blade rotor in sequence, and then screwed into the positioning hole of the oil pump shaft and tightened. The multiple equidistant positioning holes provide multiple installation position options for the mounting bolt 1, which can be easily adjusted according to actual needs to ensure the accuracy of installation. The connection method of the mounting bolt 1 is easy to disassemble. When it is necessary to repair or replace parts, the relevant parts can be separated simply by unscrewing the mounting bolt 1, which reduces the difficulty of repair and improves the efficiency of repair.

[0010] Preferably, a retaining strip is fixedly installed on the outer surface of the oil pump shaft, and the retaining strip is adapted to the first blade rotor and the second blade rotor.

[0011] Through the above technical solution, the locking strip plays a positioning and guiding role, which facilitates the accurate installation of the first blade rotor and the second blade rotor on the oil pump shaft, avoiding offset and misalignment during the installation process. Moreover, the fitting connection between the locking strip and the rotor enhances the stability between the rotor and the shaft. When the oil pump is working, it can effectively transmit torque, ensuring that the rotor rotates synchronously with the shaft, improving the working efficiency of the oil pump, and also reducing wear between the rotor and the shaft, thus extending the service life of the components.

[0012] Preferably, a retaining cover is fixedly installed on the outer surface of the second blade rotor, and the retaining cover is adapted to the limiting groove.

[0013] With the above technical solution, when installing the second blade rotor, its retainer is aligned with the limiting groove on the mounting cover of the first blade rotor, and then the retainer is inserted into the limiting groove, making the connection between the first blade rotor and the second blade rotor tighter and more stable. Through the cooperation between the retainer and the limiting groove, the displacement and rotation of the second blade rotor relative to the first blade rotor are restricted, ensuring the synchronization of the two rotors during operation.

[0014] Preferably, multiple identical second blade rotors are provided, and another second blade rotor is adapted to the limiting groove through a retaining cover.

[0015] With the above technical solution, when multiple second blade rotors need to be installed, the retaining cover of each second blade rotor is aligned with the limiting groove on the mounting cover of the first blade rotor and inserted in the above method. Multiple second blade rotors are connected to the first blade rotor in this way, and the number of blades can be adjusted according to the actual oil pump design requirements to meet different pumping flow requirements. At the same time, when multiple blades need to be disassembled and assembled, it is also convenient to disassemble and assemble multiple sets.

[0016] Preferably, a connecting bolt is provided between the first blade rotor and the second blade rotor, the connecting bolt passing through multiple first blade rotors and second blade rotors and extending to their outer surfaces.

[0017] Through the above technical solution, after the initial installation of the first blade rotor and multiple second blade rotors is completed, the connecting bolts are sequentially passed through the corresponding holes of the multiple first and second blade rotors and tightened. The connecting bolts further strengthen the connection between the first and second blade rotors, making them form a more stable whole. When the oil pump is running at high speed, it can effectively resist centrifugal force and other forces, prevent loosening and displacement between the rotors, and ensure the normal operation of the oil pump.

[0018] Compared with the prior art, this utility model provides a vane-type oil pump rotor that is easy to disassemble and assemble, and has the following beneficial effects:

[0019] 1. This easily detachable vane-type oil pump rotor features a first vane rotor that engages with the connecting cover via a circular through-slot. This facilitates rotational alignment during installation, significantly reducing jamming and misalignment, thus greatly improving the installation efficiency of a single rotor. Furthermore, it allows for precise positioning during installation, ensuring the accuracy of the first vane rotor's installation position. Multiple equidistant positioning holes provide various installation position options for the mounting bolt, allowing for flexible adjustments based on actual conditions when installing a single first vane rotor, ensuring installation precision. Moreover, the connection method of the mounting bolt is simple to operate and easy to disassemble, reducing maintenance difficulty when a single rotor needs maintenance or replacement.

[0020] 2. This easy-to-disassemble vane-type oil pump rotor can be installed with multiple vanes. First, the second vane rotor can be connected to the limiting groove through the retaining cover. After the vanes are assembled, the connection between the multiple first vane rotors and the second vane rotors is further reinforced with connecting bolts. When the oil pump is running at high speed, it can effectively resist centrifugal force and other forces, preventing loosening and displacement between the rotors. Then it can be installed on the oil pump shaft, which can realize multiple installation methods and improve the versatility of the overall device. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 1 ;

[0022] Figure 2 This is a schematic diagram of the three-dimensional structure of the present invention. Figure 2 ;

[0023] Figure 3 This is a schematic diagram of the disassembled structure of the oil pump shaft and the first blade rotor of this utility model. Figure 1 ;

[0024] Figure 4 This is a schematic diagram of the disassembled structure of the oil pump shaft and the first blade rotor of this utility model. Figure 2 ;

[0025] Figure 5 This is a schematic diagram of the installation structure of the oil pump shaft and positioning hole of this utility model;

[0026] Figure 6 This is a schematic diagram of the disassembled structure of the first blade rotor and the connecting bolt of this utility model.

[0027] The components are: 1. Oil pump shaft; 2. Clamping strip; 3. Positioning hole; 4. Connecting cover; 5. Mounting hole one; 6. Mounting bolt one; 7. First blade rotor; 8. Connecting hole one; 9. Through groove; 10. Mounting hole two; 11. Mounting cover; 12. Limiting groove; 13. Second blade rotor; 14. Clamping groove; 15. Clamping cover; 16. Mounting bolt two; 17. Mounting hole three; 18. Connecting bolt. Detailed Implementation

[0028] 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.

[0029] Example 1: As Figure 1-6 As shown, this utility model provides a vane-type oil pump rotor that is easy to disassemble and assemble, including an oil pump shaft 1. The outer surface of the oil pump shaft 1 is provided with a positioning hole 3. A connecting cover 4 is fixedly installed on the outer surface of the oil pump shaft 1. The outer surface of the connecting cover 4 is provided with a mounting hole 5. A mounting bolt 6 is provided on the outer surface of the connecting cover 4 through the mounting hole 5. A first vane rotor 7 and a second vane rotor 13 are provided on the outer surface of the oil pump shaft 1. The outer surface of the first vane rotor 7 is provided with a connecting hole 8, a through groove 9 and a mounting hole 10. A mounting cover 11 is fixedly installed on the outer surface of the first vane rotor 7. A limiting groove 12 is provided on the outer surface of the mounting cover 11. The outer surface of the second vane rotor 13 is provided with a slot 14 and a mounting hole 17. A mounting bolt 16 is provided on the outer surface of the second vane rotor 13.

[0030] Specifically, the first blade rotor 7 is adapted to the connecting cover 4 through the through groove 9. The through groove 9 and the connecting cover 4 have a circular cross-section. The advantage is that during installation, the through groove 9 of the first blade rotor 7 is aligned with the connecting cover 4 and inserted along the circumference of the connecting cover 4 to make them fit together. The matching of the circular structure of the through groove 9 and the connecting cover 4 can ensure that the first blade rotor 7 is accurately installed on the connecting cover 4. The matching of the circular structure can reduce jamming and misalignment during installation, improve installation efficiency, and ensure that the first blade rotor 7 rotates smoothly around the connecting cover 4 when the oil pump is running, reducing shaking and noise during operation and improving the working stability of the oil pump.

[0031] Specifically, mounting bolt 6 penetrates mounting hole 5 and mounting hole 10 and extends to the inner surface of positioning hole 3. Multiple positioning holes 3 are provided, and they are equidistantly distributed. The advantage is that after the first blade rotor 7 is initially installed with the connecting cover 4 via the through slot 9, mounting bolt 6 is sequentially passed through mounting hole 5 of the connecting cover 4 and mounting hole 10 of the first blade rotor 7, and then screwed into the positioning hole 3 of the oil pump shaft 1 and tightened. The multiple equidistantly distributed positioning holes 3 provide mounting bolt 6 with various installation position options, facilitating adjustments according to actual needs and ensuring installation accuracy. The connection method of mounting bolt 6 facilitates disassembly; when maintenance or replacement of parts is required, simply unscrewing mounting bolt 6 is sufficient to separate the relevant parts, reducing maintenance difficulty and improving maintenance efficiency.

[0032] Specifically, a retaining strip 2 is fixedly installed on the outer surface of the oil pump shaft 1. The retaining strip 2 is adapted to the first blade rotor 7 and the second blade rotor 13. The advantage is that the retaining strip 2 plays a positioning and guiding role, which makes it easy for the first blade rotor 7 and the second blade rotor 13 to be accurately installed on the oil pump shaft 1, avoiding offset and misalignment during the installation process. Moreover, the adapted connection between the retaining strip 2 and the rotor enhances the stability between the rotor and the shaft. When the oil pump is working, it can effectively transmit torque, ensure that the rotor rotates synchronously with the shaft, improve the working efficiency of the oil pump, and at the same time reduce the wear between the rotor and the shaft, extending the service life of the components.

[0033] Example 2: Figure 2-6 As shown, this is an improvement on the previous embodiment.

[0034] Specifically, a retaining cover 15 is fixedly installed on the outer surface of the second blade rotor 13. The retaining cover 15 is adapted to the limiting groove 12. The advantage is that when installing the second blade rotor 13, its retaining cover 15 is aligned with the limiting groove 12 on the mounting cover 11 of the first blade rotor 7, and then the retaining cover 15 is inserted into the limiting groove 12, so that the connection between the first blade rotor 7 and the second blade rotor 13 is tighter and more stable. Through the cooperation between the retaining cover 15 and the limiting groove 12, the displacement and rotation of the second blade rotor 13 relative to the first blade rotor 7 are restricted, ensuring the synchronization of the two rotors during operation.

[0035] Specifically, multiple second blade rotors 13 are provided. Another second blade rotor 13 is adapted to the limiting groove 12 through the retaining cover 15. The advantage is that when multiple second blade rotors 13 need to be installed, the retaining cover 15 of each second blade rotor 13 is aligned with the limiting groove 12 on the mounting cover 11 of the first blade rotor 7 and inserted in the above method. Multiple second blade rotors 13 are connected to the first blade rotor 7 in this way. The number of blades can be adjusted according to the actual oil pump design requirements to meet different pumping flow requirements. At the same time, it is also convenient to disassemble and assemble multiple sets when multiple blades need to be disassembled and assembled.

[0036] Specifically, a connecting bolt 18 is provided between the first blade rotor 7 and the second blade rotor 13. The connecting bolt 18 passes through multiple first blade rotors 7 and second blade rotors 13 and extends to their outer surfaces. The advantage is that after the initial installation of the first blade rotor 7 and multiple second blade rotors 13 is completed, the connecting bolt 18 is sequentially passed through the corresponding holes of multiple first blade rotors 7 and second blade rotors 13 and tightened. The connecting bolt 18 further strengthens the connection between the first blade rotors 7 and second blade rotors 13, making them form a more stable whole. When the oil pump is running at high speed, it can effectively resist centrifugal force and other forces, preventing loosening and displacement between the rotors and ensuring the normal operation of the oil pump.

[0037] Working principle: In use, the first blade rotor 7 is inserted into the connecting cover 4 along the circumference through the through groove 9, achieving a preliminary connection between the first blade rotor 7 and the connecting cover 4. The connecting cover 4 is fixed on the oil pump shaft 1, at which point the first blade rotor 7 is initially installed on the outer surface of the oil pump shaft 1. Next, the mounting bolt 6 is passed through the mounting hole 5 of the connecting cover 4 and the mounting hole 10 of the first blade rotor 7 in sequence, and screwed into the positioning hole 3 of the oil pump shaft 1 to tighten, further fixing the first blade rotor 7. When installing the second blade rotor 13, the first blade rotor 7 and the second blade rotor 13 are first aligned with the retaining strip 2 on the outer surface of the oil pump shaft 1, and slid in along the direction of the retaining strip 2, so that the retaining strip 2 is embedded in the corresponding retaining groove 14, completing the positioning connection between the rotor and the shaft. Then, the retaining cover 15 on the outer surface of the second blade rotor 13 is aligned with the limiting groove 12 on the mounting cover 11 of the first blade rotor 7 and inserted to achieve a preliminary connection between the two rotors. If there are multiple second-blade rotors 13, they are installed sequentially using this method. Finally, after the initial installation of the first-blade rotor 7 and multiple second-blade rotors 13 is completed, the connecting bolts 18 are passed through the corresponding holes of the multiple first-blade rotors 7 and second-blade rotors 13 and tightened, so that all rotors form a stable whole. When the oil pump is working, the oil pump shaft 1 drives the connecting cover 4 to rotate, which in turn drives the first-blade rotor 7 to rotate. Since the first-blade rotor 7 and the second-blade rotor 13 are tightly connected to the limiting groove 12 through the retaining cover 15 and reinforced by the connecting bolts 18, the second-blade rotor 13 will rotate synchronously with the first-blade rotor 7. During the rotation of the rotor, the blades slide in the pump body, and the volume change formed between the blades and the pump body realizes the intake and discharge of oil, completing the pumping of oil.

[0038] 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-type oil pump rotor that is easy to disassemble and assemble, comprising an oil pump shaft (1), characterized in that: The outer surface of the oil pump shaft (1) is provided with a positioning hole (3). A connecting cover (4) is fixedly installed on the outer surface of the oil pump shaft (1). A mounting hole (5) is provided on the outer surface of the connecting cover (4). A mounting bolt (6) is provided on the outer surface of the connecting cover (4) through the mounting hole (5). A first blade rotor (7) and a second blade rotor (13) are provided on the outer surface of the oil pump shaft (1). A connecting hole (8), a through groove (9) and a mounting hole (10) are provided on the outer surface of the first blade rotor (7). A mounting cover (11) is fixedly installed on the outer surface of the first blade rotor (7). A limiting groove (12) is provided on the outer surface of the mounting cover (11). A slot (14) and a mounting hole (17) are provided on the outer surface of the second blade rotor (13). A mounting bolt (16) is provided on the outer surface of the second blade rotor (13).

2. The vane-type oil pump rotor for easy disassembly and assembly according to claim 1, characterized in that: The first blade rotor (7) is adapted to the connecting cover (4) through the through slot (9), and the through slot (9) and the connecting cover (4) have a "circular" cross-section.

3. The vane-type oil pump rotor for easy disassembly and assembly according to claim 1, characterized in that: The mounting bolt (6) penetrates the mounting hole (5) and the mounting hole (10) and extends to the inner surface of the positioning hole (3). There are multiple identical positioning holes (3), and the multiple positioning holes (3) are equidistantly distributed.

4. The vane-type oil pump rotor for easy disassembly and assembly according to claim 1, characterized in that: A retaining strip (2) is fixedly installed on the outer surface of the oil pump shaft (1), and the retaining strip (2) is adapted to the first blade rotor (7) and the second blade rotor (13).

5. A vane-type oil pump rotor that is easy to disassemble and assemble according to claim 1, characterized in that: A retainer (15) is fixedly installed on the outer surface of the second blade rotor (13), and the retainer (15) is adapted to the limiting groove (12).

6. The vane-type oil pump rotor for easy disassembly and assembly according to claim 1, characterized in that: The second blade rotor (13) is provided in multiple identical manner, and another second blade rotor (13) is adapted to the limiting groove (12) through the cover (15).

7. The vane-type oil pump rotor for easy disassembly and assembly according to claim 1, characterized in that: A connecting bolt (18) is provided between the first blade rotor (7) and the second blade rotor (13), and the connecting bolt (18) passes through multiple first blade rotors (7) and second blade rotors (13) and extends to their outer surfaces.

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