A kind of based on light weight oil distribution tray's gerotor pump

Abstract

The utility model belongs to the field of mechanical structure design discloses a kind of pan-cycloid gear pump based on light weight oil distribution tray, including upper eccentric shell, upper outer rotor, upper inner rotor, oil distribution tray, lower eccentric shell, lower outer rotor and lower inner rotor, upper eccentric shell, upper outer rotor, upper inner rotor form the upper pump body of pan-cycloid pump, lower eccentric shell, lower outer rotor and lower inner rotor form the lower pump body of pan-cycloid pump, oil distribution tray is located between the upper pump body and lower pump body, and oil distribution tray is the structure of ribless plate.The utility model adopts this light weight oil distribution tray, under the premise of meeting flow requirement, can effectively reduce product weight, improve product space utilization, be conducive to the high integration design of product.

Description

Technical Field

[0001] This utility model belongs to the field of mechanical structure design, specifically relating to a cycloidal gear pump based on a lightweight oil distribution plate. Background Technology

[0002] The oil distributor plate of a common cycloidal gear pump typically consists of an inlet groove, an outlet groove, and a transition sealing area, such as... Figure 1 As shown. The oil inlet and outlet grooves are formed by the cooperation of the inner and outer rotors and the ribs of the oil distributor plate, as shown. Figure 2 As shown, the oil suction chamber is divided into two parts. To meet the flow requirements, a certain stage of a cycloidal pump may require multiple internal and external rotors and oil distributors, which increases the product weight and length. Summary of the Invention

[0003] To address the aforementioned issues, this invention provides a cycloidal gear pump based on a lightweight oil distributor plate. By installing a new lightweight oil distributor plate and replacing the original pipeline with an oil passage, the thickness of the oil distributor plate can be reduced, thus lowering the product weight.

[0004] The utility model features of this utility model are: A cycloidal gear pump based on a lightweight oil distributor plate includes an upper eccentric housing, an upper outer rotor, an upper inner rotor, an oil distributor plate, a lower eccentric housing, a lower outer rotor, and a lower inner rotor. The upper eccentric housing, the upper outer rotor, and the upper inner rotor form the upper pump body of the cycloidal pump, and the lower eccentric housing, the lower outer rotor, and the lower inner rotor form the lower pump body of the cycloidal pump. The oil distributor plate is located between the upper pump body and the lower pump body and has a ribless structure.

[0005] Furthermore, the structure of the oil separator is as follows: a small circular ring is the main body, the center of the small circular ring is the shaft hole, one end of the small circular ring is a cuboid structure, and the other end of the small circular ring is a hook-shaped structure. The left and right sides of the oil separator are the oil suction window and the oil discharge window, respectively. The asymmetry of the hook-shaped structure makes the area and shape of the oil suction window and the oil discharge window asymmetrical.

[0006] Furthermore, the hook-shaped structure of the oil separator has a small area with an unloading groove on one side, which is a blind groove with a rib in the middle.

[0007] Furthermore, the cuboid structure is provided with positioning pin holes, and the upper and lower eccentric shells are also provided with positioning pin holes at corresponding positions.

[0008] Furthermore, the cycloidal gear pump is equipped with a pressure regulating valve on its outer casing. The inlet and outlet of the pressure regulating valve are located on the casing of the cycloidal gear pump, specifically at the height position of the casing corresponding to the oil distributor plate.

[0009] Furthermore, the inlet and outlet of the pressure regulating valve are respectively connected to the oil suction window and oil discharge window of the oil distributor.

[0010] The advantages or beneficial effects of this utility model are: 1. By using this lightweight oil distribution plate of the present invention, the product weight is reduced and the product space utilization is improved while meeting the flow requirements, which is conducive to the high integration design of the product.

[0011] 2. By using the structure of this utility model, holes can be drilled directly on both sides of the sealing area to connect with the pressure regulating valve, eliminating the need for additional casting of pipelines on the housing, further reducing the product weight, while also improving product reliability and reducing oil leakage points. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments of the present invention will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0013] Figure 1 This is a schematic diagram of a traditional oil separator in the background technology; Figure 2 This is a schematic diagram of the operation of a traditional oil separator in the background technology; Figure 3 This is a schematic diagram of the oil separator of this utility model; Figure 4 This is a schematic diagram of the pressure regulating valve opening method of this utility model; Figure 5 This utility model includes an overall structural diagram and a schematic diagram of the oil separator working process. Among them, 1-upper eccentric housing, 2-upper outer rotor, 3-upper inner rotor, 4-oil distributor plate, 5-lower eccentric housing, 6-lower outer rotor, 7-lower inner rotor. Detailed Implementation

[0014] This section describes embodiments of the present invention, used to explain and illustrate the technical solutions of the present invention. Unless otherwise specified, the embodiments and features described herein can be combined with each other.

[0015] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating directions or positional relationships, are given in the accompanying drawings and are used only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or device referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include more than one of those features. In the description of this invention, unless otherwise stated, "a plurality of" means two or more.

[0016] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integrated connections; they can refer to mechanical connections or point connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0017] Example 1: A cycloidal gear pump based on a lightweight oil distributor plate includes an upper eccentric housing 1, an upper outer rotor 2, an upper inner rotor 3, an oil distributor plate 4, a lower eccentric housing 5, a lower outer rotor 6, and a lower inner rotor 7. The upper eccentric housing 1, the upper outer rotor 2, and the upper inner rotor 3 form the upper pump body of the cycloidal pump, and the lower eccentric housing 5, the lower outer rotor 6, and the lower inner rotor 7 form the lower pump body of the cycloidal pump. The oil distributor plate 4 is located between the upper pump body and the lower pump body and has a ribless structure.

[0018] The oil separator 4 has the following structure: a small circular ring as the main body, a rotating shaft hole at the center of the small circular ring, a cuboid structure at one end of the small circular ring, and a hook-shaped structure at the other end. The left and right sides of the oil separator 4 are the oil suction window and the oil discharge window, respectively. The asymmetry of the hook-shaped structure makes the area and shape of the oil suction window and the oil discharge window asymmetrical.

[0019] The hook-shaped structure of the oil separator 4 has an unloading groove on one side of its small area. The unloading groove is a blind groove with a rib in the middle.

[0020] The cuboid structure is provided with positioning pin holes, and the upper eccentric shell 1 and the lower eccentric shell 5 are also provided with positioning pin holes at corresponding positions.

[0021] The cycloidal gear pump has a pressure regulating valve on its outer casing. The inlet and outlet of the pressure regulating valve are located on the casing of the cycloidal gear pump, specifically at the height of the casing corresponding to the oil distribution plate 4.

[0022] The inlet and outlet of the pressure regulating valve are connected to the oil suction window and oil discharge window of the oil distribution plate 4, respectively.

[0023] Example 2: like Figure 3 As shown, this invention utilizes a novel lightweight oil separator plate, and... Figure 1 Compared to traditional oil separators, the ribs at the oil suction chamber and the corresponding thickness of the oil separator body have been removed. At the same time, the material on both sides of the positioning pin hole has been removed, leaving only the sealing area.

[0024] like Figure 5 As shown, when the new type of oil separator is installed between two pairs of inner and outer rotors, it forms an oil suction chamber and an oil discharge chamber with the inner and outer rotors at both ends. When the inner and outer rotors start to rotate, oil is sucked from the oil suction chamber and discharged to the oil discharge chamber after passing through the sealing area.

[0025] A lightweight oil separator plate has been developed, which removes the ribs from the oil suction chamber of the oil separator plate, turning two small oil suction chambers into a single large oil suction chamber; the meat on both sides of the positioning pin has been removed, leaving only the sealing area.

[0026] like Figure 4 As shown, holes can be drilled directly on both sides of the sealing area to connect with the pressure regulating valve, without the need for additional pipe casting on the housing.

[0027] The thickness corresponding to the rib plate of the oil suction chamber of the oil separator body was removed.

[0028] When the inner and outer rotors are drawing oil, oil can be drawn directly from a single large oil suction chamber.

[0029] The main innovation of this utility model is that, for a single-stage multi-stage pump, the ribs on both sides of the oil distributor plate are removed and the corresponding thickness of the oil distributor plate body is reduced. The material on both sides of the positioning pin is also removed, leaving only the sealing area.

[0030] This not only reduces the weight of the product but also shortens its length, which is helpful for the design of the product's shape, weight, and even its functions.

[0031] The above description is merely a specific embodiment of the present invention, providing a detailed description of the invention. Parts not covered herein are conventional techniques. However, the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in the present invention should be included within the scope of protection of the present invention. The scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A light-weight oil distribution disc-based gerotor pump, characterized by, The pump body includes an upper eccentric housing (1), an upper outer rotor (2), an upper inner rotor (3), an oil distribution plate (4), a lower eccentric housing (5), a lower outer rotor (6), and a lower inner rotor (7). The upper eccentric housing (1), the upper outer rotor (2), and the upper inner rotor (3) form the upper pump body of the cycloidal pump, and the lower eccentric housing (5), the lower outer rotor (6), and the lower inner rotor (7) form the lower pump body of the cycloidal pump. The oil distribution plate (4) is located between the upper pump body and the lower pump body and has a ribless structure.

2. The light-weight oil distribution disc-based epicycloid gear pump according to claim 1, characterized in that, The structure of the oil separator (4) is as follows: the main body is a small ring, the center of the small ring is a rotating shaft hole, one end of the small ring is a cuboid structure, and the other end of the small ring is a hook-shaped structure. The left and right sides of the oil separator (4) are the oil suction window and the oil discharge window, respectively. The asymmetry of the hook-shaped structure makes the area and shape of the oil suction window and the oil discharge window asymmetrical.

3. The light-weight oil distribution disc-based epicycloid gear pump according to claim 2, characterized in that, The hook-shaped structure of the oil separator (4) has a small area with an unloading groove on one side. The unloading groove is a blind groove with a rib in the middle.

4. A cycloidal gear pump based on a lightweight oil separator plate according to claim 2, characterized in that, The cuboid structure is provided with positioning pin holes, and the upper eccentric shell (1) and the lower eccentric shell (5) are also provided with positioning pin holes at corresponding positions.

5. A cycloidal gear pump based on a lightweight oil separator plate according to claim 2, characterized in that, The casing of the cycloidal gear pump is equipped with a pressure regulating valve. The inlet and outlet of the pressure regulating valve are located on the casing of the cycloidal gear pump, specifically at the height of the oil distribution plate (4) corresponding to the casing of the cycloidal gear pump.

6. A cycloidal gear pump based on a lightweight oil separator plate according to claim 5, characterized in that, The inlet and outlet of the pressure regulating valve are connected to the oil suction window and oil discharge window of the oil distribution plate (4), respectively.

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