Stator and rotor for variable displacement oil pump

Abstract

The utility model discloses a variable displacement oil pump stator and rotor, and specifically relates to the stator and rotor technology field, the stator and rotor comprises a stator and rotor body, the outer wall of the stator and rotor body is uniformly provided with a plurality of placing grooves, and the inner wall of the stator and rotor body is provided with a plurality of first grooves, a plurality of second grooves and a third groove; protective pads are arranged in the multiple first grooves, the multiple protective pads are made of rubber materials, and a connecting mechanism is arranged in the stator and rotor body. According to the utility model, through the arrangement of the connecting mechanism, when the stator and rotor body is connected with the rotor, the stator and rotor body is not directly connected with the rotor in a contact manner, but can be connected with the rotor through the connecting mechanism, so that the stator and rotor body and the rotor are relatively simple to disassemble through the connecting manner; therefore, when one of the stator and rotor body and the rotor is damaged, an operator can quickly complete maintenance and does not need to replace the whole stator and rotor body and the whole rotor.

Description

Technical Field

[0001] The utility model relates to the technical field of stators and rotors, and more specifically, to a stator and rotor for a variable displacement oil pump. Background Art

[0002] Typical rotors include turbine rotors, motor rotors, rotors of various pumps and rotors of turbine compressors. When the rotor rotates at certain specific speeds, it will deform greatly and cause resonance. The speed when resonance occurs is called the critical speed of the rotor. In engineering, a rotor whose operating speed is lower than the first-order critical speed is called a rigid rotor, and a rotor whose operating speed is higher than the first-order critical speed is called a flexible rotor. Since the rotor rotates at high speed, it needs to be balanced. Static balance is mainly used to balance the inertia force of the disc rotor. The dynamic balance of the rigid rotor can be achieved by using a universal balancing machine to balance the inertia force and inertia couple and eliminate the vibration of the rotor on the elastic support. The rotor includes a stator and rotor. As the name suggests, the stator and rotor refer to the rotor that does not move during movement, also called a fixed rotor or a static rotor.

[0003] However, most of the existing stators and rotors are generally connected to the rotor by direct contact connection. This connection method makes it difficult to separate the stator, rotor and rotor. Therefore, when one of the stators and rotors is damaged, it cannot be repaired quickly and the stator, rotor and rotor can only be replaced as a whole. Therefore, the cost of using the stator and rotor is increased. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, an embodiment of the utility model provides a stator and rotor for a variable displacement oil pump. By setting a connecting mechanism, the stator and rotor bodies are no longer connected to the rotor by direct contact, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a stator and rotor for a variable displacement oil pump, comprising a stator and rotor body, a plurality of placement grooves are evenly opened on the outer wall of the stator and rotor body, a plurality of first grooves, a plurality of second grooves and a third groove are opened on the inner wall of the stator and rotor body, a plurality of first grooves are each provided with a protective pad inside, a plurality of the protective pads are each made of rubber material, and a connecting mechanism is provided inside the stator and rotor body.

[0006] In a preferred embodiment, the connection mechanism includes a connection plate, the connection plate is arranged in an arc shape, a first guide plate is arranged on one side of the connection plate, and a second guide plate is arranged on one side of the first guide plate.

[0007] In a preferred embodiment, one side of the second guide plate is connected to the other side of the connecting plate, and one side of the first guide plate is provided with a first slot.

[0008] In a preferred embodiment, a first clamping block is disposed inside the first clamping slot, and one side of the first clamping block is connected to one side of the second guide plate.

[0009] In a preferred embodiment, a second card slot is formed on one side of the second guide plate, a second card block is disposed inside the second card slot, and one side of the second card block is connected to one side of the first guide plate.

[0010] In a preferred embodiment, the first guide plate and the second guide plate are both located inside the third groove.

[0011] In a preferred embodiment, a third guide plate is disposed inside each of the plurality of second grooves, and one side of the third guide plate is connected to the outer wall of the connecting plate.

[0012] In a preferred embodiment, a gasket is arranged inside the placement groove, the gasket is made of rubber material, a bolt is arranged on one side of the gasket, one end of the bolt passes through the stator and rotor body and the third guide plate in sequence and extends to the inside of the third guide plate.

[0013] Technical effects and advantages of the utility model:

[0014] By providing a connecting mechanism, the stator and rotor bodies are no longer directly connected to the rotor by contact connection, but can be connected to the rotor by connecting the stator and rotor bodies through the connecting mechanism. This connection method makes it easier to separate the stator and rotor bodies from the rotor. Therefore, when one of the stator and rotor bodies and the rotor is damaged, the operator can quickly complete the repair without replacing the stator and rotor bodies and the rotor as a whole. Therefore, the use cost of the stator and rotor bodies is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 2 It is a cross-sectional structural schematic diagram of the utility model.

[0017] Figure 3 For the utility model Figure 2 Enlarged structural diagram at A in the middle.

[0018] Figure 4 For the utility model Figure 2 Enlarged structural diagram at B in the middle.

[0019] Figure 5 For the utility model Figure 2 Enlarged structural diagram of point C in the middle

[0020] The figures are marked as follows: 1. stator and rotor body; 2. protective pad; 3. connecting plate; 4. first guide plate; 5. second guide plate; 6. first clamping block; 7. second clamping block; 8. third guide plate; 9. washer; 10. bolt. DETAILED DESCRIPTION

[0021] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] As attached Figure 1-5 The stator and rotor for a variable displacement oil pump shown in the figure include a stator and rotor body 1, a plurality of placement grooves are evenly opened on the outer wall of the stator and rotor body 1, a plurality of first grooves, a plurality of second grooves and a third groove are opened on the inner wall of the stator and rotor body 1, and protective pads 2 are arranged inside the plurality of first grooves, and the plurality of protective pads 2 are made of rubber material. A connecting mechanism is arranged inside the stator and rotor body 1 so as to improve the anti-slip property of the inner wall of the stator and rotor body 1 through the arrangement of the protective pads 2 to avoid the phenomenon of slipping after the connecting plate 3 is placed inside the stator and rotor body 1.

[0023] As attached Figure 1 , 2 As shown in , 3, 4, and 5, the connecting mechanism includes a connecting plate 3, which is arranged in an arc shape, a first guide plate 4 is arranged on one side of the connecting plate 3, a second guide plate 5 is arranged on one side of the first guide plate 4, one side of the second guide plate 5 is connected to the other side of the connecting plate 3, a first slot is provided on one side of the first guide plate 4, a first block 6 is arranged inside the first slot, one side of the first block 6 is connected to one side of the second guide plate 5, a second slot is provided on one side of the second guide plate 5, a second slot is provided inside the second slot, a second block 7 is arranged inside the second slot, one side of the second block 7 is connected to one side of the first guide plate 4, the first guide plate 4 and the second guide plate 5 are both located inside the third groove, so that the stator and rotor body 1 can be indirectly connected to the rotor through the connecting mechanism.

[0024] As attached Figure 3As shown, a third guide plate 8 is provided inside each of the plurality of second grooves, one side of the third guide plate 8 is connected to the outer wall of the connecting plate 3, a washer 9 is provided inside the placement groove, the washer 9 is made of rubber material, a bolt 10 is provided on one side of the washer 9, one end of the bolt 10 passes through the stator and rotor body 1 and the third guide plate 8 in sequence and extends to the inside of the third guide plate 8, so that the connecting mechanism can be installed in the stator and rotor body 1 through the cooperation of the third guide plate 8 and the bolt 10.

[0025] The working principle of the utility model is as follows: when installing the connecting mechanism, the first guide plate 4 and the second guide plate 5 are first clamped together through the cooperation of the first clamping block 6 and the second clamping block 7. After the first guide plate 4 and the second guide plate 5 are clamped together, the connecting plate 3 is in a circular shape in cooperation with the first guide plate 4 and the second guide plate 5. At this time, the connecting plate 3 is sent into the interior of the stator and rotor body 1. After the sending-in is completed, multiple screws are screwed in from their corresponding positions in sequence to complete the installation of the connecting mechanism.

[0026] Finally, a few points should be explained: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, which may refer to mechanical connection or electrical connection, or internal communication between two components, or direct connection. "upper", "lower", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may change;

[0027] Secondly: In the drawings of the embodiments disclosed in the present utility model, only the structures related to the embodiments disclosed in the present utility model are involved, and other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of the present utility model can be combined with each other;

[0028] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A stator and rotor for a variable displacement oil pump, comprising a stator and rotor body (1), characterized in that: The outer wall of the stator and rotor body (1) is evenly provided with a plurality of placement grooves, the inner wall of the stator and rotor body (1) is provided with a plurality of first grooves, a plurality of second grooves and a third groove, a plurality of first grooves are provided with protective pads (2) inside, the plurality of protective pads (2) are made of rubber material, and a connecting mechanism is provided inside the stator and rotor body (1); The connection mechanism comprises a connection plate (3), the connection plate (3) is arranged in an arc shape, a first guide plate (4) is arranged on one side of the connection plate (3), and a second guide plate (5) is arranged on one side of the first guide plate (4); One side of the second guide plate (5) is connected to the other side of the connecting plate (3), and one side of the first guide plate (4) is provided with a first slot; A first clamping block (6) is arranged inside the first clamping slot, and one side of the first clamping block (6) is connected to one side of the second guide plate (5).

2. The stator and rotor for a variable displacement oil pump according to claim 1, characterized in that: A second clamping slot is provided on one side of the second guide plate (5), a second clamping block (7) is arranged inside the second clamping slot, and one side of the second clamping block (7) is connected to one side of the first guide plate (4).

3. The stator and rotor for a variable displacement oil pump according to claim 1, characterized in that: The first guide plate (4) and the second guide plate (5) are both located inside the third groove.

4. The stator and rotor for a variable displacement oil pump according to claim 1, characterized in that: A third guide plate (8) is arranged inside each of the plurality of second grooves, and one side of the third guide plate (8) is connected to the outer wall of the connecting plate (3).

5. The stator and rotor for a variable displacement oil pump according to claim 1, characterized in that: A washer (9) is arranged inside the placement groove, and the washer (9) is made of rubber material. A bolt (10) is arranged on one side of the washer (9), and one end of the bolt (10) passes through the stator and rotor body (1) and the third guide plate (8) in sequence and extends to the inside of the third guide plate (8).

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