Parallel cross type quadruple cycloid pump

Abstract

The utility model discloses a parallel cross type quadruple cycloid pump which comprises a quadruple cycloid pump body. The quadruple cycloid pump comprises a pump shell, a first bearing arranged at one end of the pump shell, a second bearing arranged at the other end of the pump shell, a pump shaft penetrating through the first bearing and the second bearing, a first-layer cycloid pump installation area arranged on the inner side of the pump shell, and a second-layer cycloid pump installation area located on the opposite side of the first-layer cycloid pump installation area. Disclosed is a cycloid pump assembly. According to the parallel crossed type quadruple cycloid pump, the arranged quadruple cycloid pump and the cycloid pump assembly are matched with each other, the parallel crossed type quadruple cycloid pump is formed, the problem that a traditional stacked type cycloid pump only stays in a duplex cycloid pump and cannot be made into the quadruple cycloid pump is solved, and the length of the quadruple cycloid pump is the same as that of an existing stacked type duplex cycloid pump. The quadruple cycloid pump is realized under the condition that the length of the quadruple cycloid pump is the same as that of the original stacked duplex cycloid pump, so that the mounting space is greatly reduced, the use requirement of a compact space can be met, and the demand quantity of products is increased.

Description

Technical Field

[0001] The utility model relates to the technical field of mechanical oil delivery pumps, in particular to a parallel cross-type quadruple cycloid pump. Background Art

[0002] Existing multi-joint cycloid pumps are all stacked. A cycloid pump is stacked on top of the first layer to form a duplex cycloid pump. Another cycloid pump is stacked on top of the second layer to form a triplex pump. This is repeated to form a multi-joint pump. Each time a cycloid pump is stacked, the weight of the pump body increases, and the specifications and length of the bolts securing the pump body need to be increased, as well as the diameter and length of the pump shaft. Due to the high requirements for the straightness and concentricity of the pump shaft, the longer the pump shaft, the more difficult it is to process the pump shaft. This stacked multi-joint pump also becomes longer and wider, and more space is required to install the pump body in the length and width directions. The multi-joint cycloid pumps in the existing technology have the following problems:

[0003] 1. Existing multi-unit cycloid pumps are all stacked, occupying a large space in the length and width directions, and cannot meet the needs of some customers in compact spaces.

[0004] 2. The stacked multi-cycloid pump is heavier and longer, and the processing of related parts is difficult and costly. Currently, the stacked multi-cycloid pumps on the market are limited to double-stacked cycloid pumps, and there are no triple-stacked cycloid pumps or quadruple-stacked cycloid pumps.

[0005] 3. Currently, the stacked multi-tube cycloid pumps available on the market are limited to duplex cycloid pumps; triplex and quadruple cycloid pumps are unavailable. Therefore, many customers often need to purchase two separate stacked duplex cycloid pumps to meet their displacement requirements. Each stacked duplex cycloid pump requires a separate power source (motor), which increases costs. Utility Model Content

[0006] Therefore, the purpose of this utility model is to provide a parallel cross quadruple cycloid pump. By integrating the quadruple cycloid pump and the cycloid pump assembly, a parallel cross quadruple cycloid pump is formed. This solves the problem that traditional stacked cycloid pumps only have double cycloid pumps and cannot achieve quadruple cycloid pumps. The quadruple cycloid pump has the same length as the existing stacked double cycloid pump. While maintaining the same length as the original stacked double cycloid pump, the quadruple cycloid pump is achieved, significantly reducing installation space, meeting the needs of compact space usage, and increasing product demand.

[0007] To solve the above technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: a parallel cross-type quadruple cycloid pump, comprising:

[0008] A quadruple cycloid pump, the quadruple cycloid pump comprising a pump housing, a first bearing disposed at one end of the pump housing, a second bearing disposed at the other end of the pump housing, a pump shaft passing through the first bearing and the second bearing, a first cycloid pump installation area disposed on the inner side of the pump housing, a second cycloid pump installation area located on the opposite side of the first cycloid pump installation area, a first oil outlet, a second oil outlet, a first oil inlet, and a second oil inlet provided on the outer side wall of the pump housing;

[0009] A cycloid pump assembly includes a first pump body base arranged inside the first layer of cycloid pump installation area, a first cycloid pump arranged on the surface of the first pump body base, a first inner rotor arranged inside the first cycloid pump, a first outer rotor fitted on the outside of the first inner rotor, a second pump body base arranged inside the pump casing, a second cycloid pump arranged on the surface of the second pump body base, a second inner rotor arranged inside the second cycloid pump, and a second outer rotor fitted on the outside of the second inner rotor.

[0010] As a preferred solution of a parallel cross-type quadruple cycloid pump described in the utility model, the first oil outlet and the first oil inlet correspond to the second-layer cycloid pump installation area, and the second oil outlet and the second oil inlet correspond to the first-layer cycloid pump installation area.

[0011] As a preferred solution of the parallel cross quadruple cycloid pump described in the present invention, the first outer rotor of the first cycloid pump is eccentric downward, and the second outer rotor of the second cycloid pump is eccentric upward.

[0012] As a preferred solution of the parallel cross quadruple cycloid pump described in the present invention, the middle cavity of the pump housing forms a parallel cross cavity.

[0013] As a preferred solution of the parallel cross-type quadruple cycloid pump described in the present invention, the first inner rotor drives the first outer rotor to rotate, and the second inner rotor drives the second outer rotor to rotate.

[0014] As a preferred solution of the parallel cross quadruple cycloid pump described in the present invention, a first cycloid pump and a second cycloid pump with the same structure are provided in the second-layer cycloid pump installation area.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. This parallel cross quadruple cycloid pump solves the problem that the traditional cascade cycloid pump can only be a double cycloid pump and cannot be a quadruple cycloid pump.

[0017] 2. This parallel cross-type quadruple cycloid pump is the same length as the existing stacked double cycloid pump. While maintaining the same length as the original stacked double cycloid pump, the quadruple cycloid pump is achieved, significantly reducing installation space, meeting the needs of compact spaces and increasing product demand.

[0018] 3. This parallel cross quadruple cycloid pump only requires one power source, which enables the use of four cycloid pumps. Compared with the situation on the market where each set of stacked double cycloid pumps requires one power source, each set of parallel cross quadruple cycloid pumps is equivalent to saving one power source, which greatly saves production costs and enhances market competitiveness.

[0019] During specific use, the parallel cross-type quadruple cycloid pump is composed of two layers of parallel cross-type double cycloid pumps stacked together. The double cycloid pumps of each layer are composed of two separate circuit systems, including a first cycloid pump and a second cycloid pump. The center of the first outer rotor of the first cycloid pump is eccentric downward, and the center of the second outer rotor of the second cycloid pump is eccentric upward. At this time, the lower part of the first outer rotor is meshed with the first inner rotor for transmission. The liquid medium is injected into the upper part of the first outer rotor due to the presence of a cavity. The pump shaft is connected to the external power transmission shaft to drive the first inner rotor to rotate. The rotation of the first inner rotor drives the first outer rotor to rotate. The rotation of the first inner rotor drives the first outer rotor to rotate. The rotation of the first inner rotor and the first outer rotor causes intermittent suction and thrust between the upper cavities, thereby sucking in the oil inlet and flowing out from the oil outlet.

[0020] The second outer rotor of the second cycloid pump is eccentric upward, and the upper part of the second outer rotor is meshed with the second inner rotor for transmission. The liquid medium is injected into the lower part of the second outer rotor due to the existence of a cavity. The pump shaft is connected to the external power transmission shaft to drive the second inner rotor to rotate. The rotation of the second inner rotor drives the second outer rotor to rotate. The rotation of the second inner rotor and the second outer rotor causes intermittent suction and thrust between the lower cavity, thereby sucking in the oil inlet and flowing out from the oil outlet. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail below in conjunction with the accompanying drawings and detailed embodiments. 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 inventive labor. Among them:

[0022] Figure 1 This is a first-perspective structural diagram of the utility model;

[0023] Figure 2 This is a structural diagram from a second perspective of the present invention;

[0024] Figure 3 It is a cross-sectional view of the utility model;

[0025] Figure 4 This is a structural diagram of the first cycloid pump of the present utility model;

[0026] Figure 5 This is a structural diagram of the second cycloid pump of the present utility model.

[0027] In the figure: 11, pump housing; 12, first bearing; 13, second bearing; 14, pump shaft; 15, first-layer cycloid pump installation area; 16, second-layer cycloid pump installation area; 17, first oil outlet; 18, second oil outlet; 19, first oil inlet; 110, second oil inlet; 21, first pump body base; 22, first cycloid pump; 23, first inner rotor; 24, first outer rotor; 25, second pump body base; 26, second cycloid pump; 27, second inner rotor; 28, second outer rotor. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific embodiments of the present invention are described in detail below with reference to the accompanying drawings.

[0029] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. People skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific implementation methods disclosed below.

[0030] Next, the present invention is described in detail with reference to schematic diagrams. For ease of illustration, cross-sectional views of device structures may be partially enlarged and not to scale when describing the embodiments of the present invention. Furthermore, the schematic diagrams are merely illustrative and should not limit the scope of protection of the present invention. Furthermore, in actual production, three-dimensional dimensions, including length, width, and depth, should be included.

[0031] In order to make the purpose, technical solutions and advantages of the present invention more clear, the embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

[0032] The utility model provides a parallel cross-type quadruple cycloid pump. By integrating the quadruple cycloid pump and the cycloid pump assembly, a parallel cross-type quadruple cycloid pump is formed. This solves the problem that conventional stacked cycloid pumps are limited to double cycloid pumps and cannot achieve quadruple cycloid pumps. The quadruple cycloid pump has the same length as the existing stacked double cycloid pump. This achieves a quadruple cycloid pump while maintaining the same length as the original stacked double cycloid pump, significantly reducing installation space, meeting the needs of compact spaces, and increasing product demand.

[0033] Figure 1-Figure 5The figure shows the overall structure of a parallel cross quadruple cycloid pump of the present invention. Figure 1-5 The main structure of this embodiment includes: a quadruple cycloid pump and a cycloid pump assembly.

[0034] The quadruple cycloid pump is used in conjunction with a cycloid pump assembly. Specifically, the quadruple cycloid pump includes a pump housing 11, a first bearing 12 provided at one end of the pump housing 11, a second bearing 13 provided at the other end of the pump housing 11, a pump shaft 14 passing through the first bearing 12 and the second bearing 13, a first-layer cycloid pump installation area 15 provided on the inner side of the pump housing 11, a second-layer cycloid pump installation area 16 located on the opposite side of the first-layer cycloid pump installation area 15, a first oil outlet 17, a second oil outlet 18, a first oil inlet 19 and a second oil outlet 10 provided on the outer wall of the pump housing 11. The oil inlet 110; the cycloid pump assembly includes a first pump body base 21 provided inside the first-layer cycloid pump installation area 15, a first cycloid pump 22 provided on the surface of the first pump body base 21, a first inner rotor 23 provided inside the first cycloid pump 22, a first outer rotor 24 sleeved on the outside of the first inner rotor 23, a second pump body base 25 provided inside the pump housing 11, a second cycloid pump 26 provided on the surface of the second pump body base 25, a second inner rotor 27 provided inside the second cycloid pump 26, and a second outer rotor 28 sleeved on the outside of the second inner rotor 27;

[0035] During specific use, the parallel cross-type quadruple cycloid pump is composed of two layers of parallel cross-type double cycloid pumps stacked together, and the double cycloid pumps of each layer are composed of two separate circuit systems, including a first cycloid pump 22 and a second cycloid pump 26. The center of the first outer rotor 24 of the first cycloid pump 22 is eccentric downward, and the center of the second outer rotor 28 of the second cycloid pump 26 is eccentric upward. At this time, the lower part of the first outer rotor 24 is meshed with the first inner rotor 23 for transmission. The upper part of the first outer rotor 24 is injected with liquid medium due to the presence of a cavity. The pump shaft 14 is connected to the external power transmission shaft to drive the first inner rotor 23 to rotate. The rotation of the first inner rotor 23 drives the first outer rotor 24 to rotate. The rotation of the first inner rotor 23 drives the first outer rotor 24 to rotate. The rotation of the first inner rotor 23 and the first outer rotor 24 causes intermittent suction and thrust between the upper cavities, thereby sucking in the oil inlet and flowing out from the oil outlet.

[0036] The second outer rotor 28 of the second cycloid pump 26 is eccentric upward, and the upper part of the second outer rotor 28 is meshed with the second inner rotor 27 for transmission. The lower part of the second outer rotor 28 is injected with liquid medium due to the existence of a cavity. The pump shaft 14 is connected to the external power transmission shaft to drive the second inner rotor 27 to rotate. The rotation of the second inner rotor 27 drives the second outer rotor 28 to rotate. The rotation of the second inner rotor 27 and the second outer rotor 28 causes intermittent suction and thrust between the lower cavities, thereby sucking in the oil inlet and flowing out from the oil outlet.

[0037] While the present invention has been described above with reference to specific embodiments, various modifications may be made and equivalent components may be substituted without departing from the scope of the present invention. In particular, as long as no structural conflicts exist, the various features of the embodiments disclosed herein may be combined with one another in any manner, and the omission of an exhaustive description of these combinations in this specification is solely for the sake of space and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A parallel cross quadruple cycloid pump, characterized in that: include: A quadruple cycloid pump, the quadruple cycloid pump comprising a pump housing (11), a first bearing (12) arranged at one end of the pump housing (11), a second bearing (13) arranged at the other end of the pump housing (11), a pump shaft (14) passing through the first bearing (12) and the second bearing (13), a first cycloid pump installation area (15) arranged on the inner side of the pump housing (11), a second cycloid pump installation area (16) located on the opposite side of the first cycloid pump installation area (15), a first oil outlet (17), a second oil outlet (18), a first oil inlet (19), and a second oil inlet (110) provided on the outer side wall of the pump housing (11); A cycloid pump assembly, comprising a first pump body base (21) arranged inside the first layer of cycloid pump installation area (15), a first cycloid pump (22) arranged on the surface of the first pump body base (21), a first inner rotor (23) arranged inside the first cycloid pump (22), a first outer rotor (24) sleeved on the outside of the first inner rotor (23), a second pump body base (25) arranged inside the pump housing (11), a second cycloid pump (26) arranged on the surface of the second pump body base (25), a second inner rotor (27) arranged inside the second cycloid pump (26), and a second outer rotor (28) sleeved on the outside of the second inner rotor (27).

2. A parallel cross quadruple cycloid pump according to claim 1, characterized in that: The first oil outlet (17) and the first oil inlet (19) correspond to the second-layer cycloid pump installation area (16), and the second oil outlet (18) and the second oil inlet (110) correspond to the first-layer cycloid pump installation area (15).

3. A parallel cross quadruple cycloid pump according to claim 2, characterized in that: The first outer rotor (24) of the first gerotor pump (22) is eccentric downward, and the second outer rotor (28) of the second gerotor pump (26) is eccentric upward.

4. A parallel cross quadruple cycloid pump according to claim 3, characterized in that: The middle cavity of the pump housing (11) forms parallel cross-type cavities.

5. A parallel cross quadruple cycloid pump according to claim 4, characterized in that: The first inner rotor (23) drives the first outer rotor (24) to rotate, and the second inner rotor (27) drives the second outer rotor (28) to rotate.

6. The parallel cross quadruple cycloid pump according to claim 5, characterized in that: A first cycloid pump (22) and a second cycloid pump (26) having the same structure are arranged in the second-layer cycloid pump installation area (16).

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