Split type hydraulic base

Abstract

The utility model relates to a split type hydraulic base. Comprising a base body, an input connector and an output connector are arranged on the base body, a liquid path cavity end face is arranged on the base body, a liquid path channel is formed in the portion, on the liquid path cavity end face, of the base body, the liquid path channel is communicated with the input connector and the output connector, a base cover is fixedly arranged on the liquid path cavity end face, and the liquid path channel is communicated with the input connector and the output connector. The end face of the liquid path cavity is sealed by the base cover; according to the scheme, the split type hydraulic base is easy in production process, low in cost and high in yield.

Description

Technical Field

[0001] The utility model relates to an energy conversion mechanism of a gearbox, in particular to a split hydraulic base. Background Art

[0002] Publication number US5314387A, patent name hydrostatic transmission, mainly discloses a variable speed drive axle, publication number US6775976B1, patent name a zero-turn hydrostatic transmission axle, mainly discloses an integrated hydrostatic variable speed drive axle, which are mainly used for small tractors such as agricultural machines and lawn mowers as gearboxes. Its main principle is to convert mechanical energy into hydraulic potential energy, and then convert hydraulic potential energy into mechanical energy, which has achieved the same purpose as the gearbox gear. Taking publication number US6775976B1, patent name a zero-turn hydrostatic transmission axle as an example, Figure 1 The core component of its energy conversion is a hydraulic base, as shown in Figures 25 to 28 of the accompanying drawings. The hydraulic base is equipped with a mutually perpendicular input and output port on its main body. A fluid channel is provided within the body, and both the input and output ports are connected to a mechanical transmission device. This hydraulic base is manufactured using a lost foam casting process, which is very difficult to produce. Under the current domestic situation, the cost of directly importing parts using this lost foam technology is still high, and the yield rate is also low. Modifying the internal structure will also prevent normal operation. Utility Model Content

[0003] The utility model aims to provide a split hydraulic base which can meet the use requirements and reduce the production difficulty and production cost.

[0004] A split hydraulic base in this solution includes a base body, which is provided with an input interface and an output interface. The characteristics are: a liquid path cavity end face is provided on the base body, a liquid path channel is opened in the base body from the liquid path cavity end face, the liquid path channel connects the input interface and the output interface, and a base cover is fixedly provided on the liquid path cavity end face, and the base cover seals the liquid path cavity end face.

[0005] Furthermore, the end surface of the liquid path cavity is arranged at one end of the base body away from the end surface of the output interface.

[0006] Furthermore, the end surface of the liquid path cavity is arranged along the length direction of the base body.

[0007] Furthermore, the end surface of the liquid path cavity is arranged perpendicular to the end surface of the input interface.

[0008] Furthermore, the end surface of the liquid path cavity is arranged parallel to the end surface of the output interface.

[0009] Furthermore, a plurality of connecting columns are provided on the base body in the circumferential direction of the end surface of the liquid path cavity, and a corresponding position on the base cover is provided.

[0010] Furthermore, the base cover is fixedly connected to the base body by bolts.

[0011] Furthermore, the connecting column and the base body are an integrally formed structure.

[0012] Furthermore, the connection hole and the base cover are an integrally formed structure.

[0013] The advantages of the present invention are that a liquid path cavity end face is opened on the base body of the present solution and is sealed with a base cover without changing the original liquid path channel structure. The original integrated hydraulic base is transformed into the current split structure so that it still has the original energy conversion function.

[0014] In this way, the liquid channel can be locally processed separately after the base body is cast, which greatly reduces the casting difficulty of the previous one-piece molding, reduces the production difficulty, improves the production efficiency and yield rate, and reduces the production cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of a hydraulic base in the prior art;

[0016] Figure 2 This is a structural diagram of a split hydraulic base of the utility model;

[0017] Figure 3 It is a three-dimensional diagram of the utility model;

[0018] Figure 4 It is a three-dimensional diagram of the base body in the utility model;

[0019] Figure 5 It is a top view of the base body in the utility model;

[0020] Figure 6 It is a structural diagram of the base cover in the utility model. DETAILED DESCRIPTION

[0021] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0022] according to Figures 2 to 6As shown, the present invention provides a split hydraulic base, comprising a base body 1, provided with an input interface 2 and an output interface 3, and a fluid path cavity end surface 4. A fluid path channel 5 is formed within the base body 1 from the fluid path cavity end surface 4. Specifically, the fluid path cavity end surface 4 is located at the end of the base body 1 that is distal to the output interface 2. The split hydraulic base employing this structural design maintains the internal fluid path channel design of the original integrated hydraulic base, maintaining the original operating principle and achieving its functions.

[0023] The fluid channel 5 connects the input port 2 and the output port 3. A base cover 6 is fixedly mounted on the fluid channel cavity end face 4, sealing the fluid channel cavity end face 4. Specifically, a plurality of connecting posts 7 are provided on the base body 1 circumferentially of the fluid channel cavity end face 4. Specifically, there are four connecting posts 7, distributed in four directions, to ensure a secure connection. The connecting posts 7 and the base body 1 are integrally formed. Four connecting holes 8 are provided at corresponding positions on the base cover 6. The connecting holes 8 are integrally formed with the base cover 1. The base cover 6 is fixedly connected to the base body 1 via bolts 9.

[0024] In this embodiment, the liquid path cavity end surface 4 is arranged along the length direction of the base body 1 .

[0025] In this embodiment, the end surface 4 of the liquid path cavity is perpendicular to the end surface of the input interface 2 .

[0026] In this embodiment, the end surface 4 of the liquid path cavity is arranged parallel to the end surface of the output interface 3 .

[0027] The above description is merely an embodiment of the present invention. The well-known specific structures and characteristics of the scheme are not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention. These modifications and improvements should also be considered within the scope of protection of the present invention and will not affect the effectiveness of the implementation of the present invention or the practical application of the patent.

Claims

1. A split hydraulic base, comprising a base body (1), wherein the base body (1) is provided with an input interface (2) and an output interface (3), characterized in that: The base body (1) is provided with a liquid path cavity end surface (4), and a liquid path channel (5) is opened in the base body (1) from the liquid path cavity end surface (4), and the liquid path channel (5) is connected with the input interface (2) and the output interface (3). A base cover (6) is fixedly provided on the liquid path cavity end surface (4), and the base cover (6) seals the liquid path cavity end surface (4).

2. A split hydraulic base according to claim 1, characterized in that: The liquid path cavity end surface (4) is arranged at an end of the base body (1) away from the end surface of the output interface (3).

3. The split hydraulic base according to claim 1, characterized in that: The liquid path cavity end surface (4) is arranged along the length direction of the base body (1).

4. The split hydraulic base according to claim 1, characterized in that: The end surface (4) of the liquid path cavity is arranged perpendicularly to the end surface of the input interface (2).

5. The split hydraulic base according to claim 1, characterized in that: The end surface (4) of the liquid path cavity is arranged parallel to the end surface of the output interface (3).

6. The split hydraulic base according to claim 1, characterized in that: A plurality of connection columns (7) are provided on the base body (1) in the circumferential direction of the end surface (4) of the liquid path cavity, and connection holes (8) are provided at corresponding positions on the base cover (6). The base cover (6) is fixedly connected to the base body (1) by bolts (9).

7. A split hydraulic base according to claim 6, characterized in that: The connecting column (7) and the base body (1) are an integrally formed structure.

8. The split hydraulic base according to claim 6, characterized in that: The connection hole (8) and the base cover (6) are an integrally formed structure.

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