CN212389593U

CN212389593U - Hydraulic valve body convenient to machine

Info

Publication number: CN212389593U
Application number: CN202020555974.7U
Authority: CN
Inventors: 宋丙臣; 唐万刚
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-04-15
Filing date: 2020-04-15
Publication date: 2021-01-22
Anticipated expiration: 2030-04-15

Abstract

The invention discloses a hydraulic valve body convenient to process, which comprises a valve body, wherein a through hole is formed in the valve body, a first cutting groove, a communicating groove, a first oil through groove and a second oil through groove are formed in the through hole, a sealing groove is formed in the right side of the through hole, the first cutting groove is formed in the left side of the communicating groove, the communicating groove is formed in the left side of the first oil through groove, the first oil through groove is formed in the left side of the second oil through groove, an oil passage is formed in the valve body, the first oil through hole, the second oil through groove and the oil passage are communicated with each other, the oil passage and the communicating groove are communicated with each other, a second oil through hole is formed in the B end surface of the valve body, a fourth oil through hole is formed in the A end surface of the valve body, the fourth oil through hole is communicated with the first oil through hole through an oil passage hole, a first, only one through hole blank hole and one oil channel need to be cast inside, and the quality stability of casting is greatly improved.

Description

Hydraulic valve body convenient to machine

Technical Field

The invention relates to the technical field of hydraulic valves, in particular to a hydraulic valve body convenient to process.

Background

The hydraulic valve is an automatic element operated by pressure oil, is controlled by the pressure oil of a distribution valve, is usually combined with an electromagnetic distribution valve for use, and can be used for remotely controlling the connection and disconnection of oil, gas and water pipeline systems of hydropower stations. It is commonly used for oil circuits of clamping, controlling, lubricating and the like. The direct-acting type and the pilot type are divided into a multi-purpose pilot type. The control method can be divided into manual, electric control and hydraulic control. The flow is regulated by regulating the area of the throttle opening between the valve core and the valve body and the local resistance generated by the throttle opening, so that the movement speed of the actuating element is controlled. The reversing hydraulic control valve block of the agricultural machine in the prior art is of an irregular casting structure during machining, and although materials can be saved by the method, the reversing hydraulic control valve block is extremely inconvenient to position during machining, and machining precision is greatly reduced.

Disclosure of Invention

The invention aims to provide a hydraulic valve body convenient to machine, which solves the problems that an agricultural machinery reversing hydraulic control valve block in the prior art is of an irregular casting structure during machining, although materials can be saved in the method, the positioning is very inconvenient during machining, and the machining precision is greatly reduced.

In order to achieve the purpose, the invention provides the following technical scheme: a hydraulic valve body convenient to process comprises a valve body, wherein a through hole is formed in the valve body, a first cutting groove, a communicating groove, a first oil passing groove and a second oil passing groove are formed in the through hole, a sealing groove is formed in the right side of the through hole, the first cutting groove is formed in the left side of the communicating groove, the communicating groove is formed in the left side of the first oil passing groove, the first oil passing groove is formed in the left side of the second oil passing groove, an oil passage is formed in the valve body, a first oil passing hole is formed in the end surface A of the valve body, the first oil passing hole is communicated with the second oil passing groove and the oil passage, the oil passage is communicated with the communicating groove, a second oil passing hole is formed in the end surface B of the valve body, a third oil passing hole is formed in the end surface C of the valve body, a fourth oil passing hole is formed in the end surface A of the valve body, the D-end face of the valve body is provided with a first connecting hole, and a second connecting hole is formed in the periphery of the sealing groove.

Preferably, the number of the first connecting holes is four, and the four first connecting holes are arranged at four corners of the D-shaped end surface of the valve body.

Preferably, the sealing groove is stepped.

Preferably, the number of the second connecting holes is four, and the four second connecting holes are arranged in the circumferential direction of the sealing groove at equal angles.

Preferably, the F end face of the valve body is provided with four third connecting holes, and the four third connecting holes are arranged at four corners of the F end face of the valve body.

Preferably, the outer shape of the valve body is a nearly cubic structure.

Preferably, the first oil passing hole, the second oil passing hole, the third oil passing hole and the fourth oil passing hole have the hole roughness of 3.2.

Preferably, the valve body is formed by casting.

Compared with the prior art, the invention has the following beneficial effects:

the valve body adopts the casting processing, and inside only need cast a perforating hole blank hole, oil duct because simple structure when casting, has greatly improved cast stability of quality, and the structure of valve body external shape for being close the cube simultaneously conveniently fixes a position in processing, and individual machined surface can fix a position mutually, so also very convenient in processing, adopt simple location and fixed alright with processing, practiced thrift manpower and materials.

Drawings

FIG. 1 is a first internal structural view of a valve body of a hydraulic valve of the present invention, which is easy to machine;

FIG. 2 is a second internal structural view of a valve body of a hydraulic valve of the present invention, which is convenient to machine;

FIG. 3 is a block diagram of side A of a hydraulic valve body of the present invention for ease of manufacturing;

FIG. 4 is a block diagram of side B of a hydraulic valve body of the present invention for ease of manufacturing;

FIG. 5 is a block diagram of the side C of the valve body of a hydraulic valve of the present invention for ease of manufacture;

FIG. 6 is a block diagram of the D-side of a valve body of a hydraulic valve of the present invention for ease of manufacturing;

FIG. 7 is a third internal block diagram of a valve body of a hydraulic valve of the present invention, which is easy to machine;

fig. 8 is a structural view of the F-face of a hydraulic valve body of the present invention, which is easy to machine.

In the figure: the oil passage structure comprises a seal groove 1, a through hole 2, a first oil passing hole 3, an oil passage 4, a first cutting groove 5, a communicating groove 6, a first oil passing groove 7, a second oil passing groove 8, a third oil passing hole 9, a second oil passing hole 10, a fourth oil passing hole 11, an oil passage hole 12, a first connecting hole 13, a second connecting hole 14 and a third connecting hole 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-8, a hydraulic valve body convenient to process includes a valve body, a through hole 2 is formed in the valve body, a blank hole of the through hole 2 is cast during casting, the through hole 2 is processed in a drilling and reaming manner during processing, a first cutting groove 5, a communicating groove 6, a first oil through groove 7 and a second oil through groove 8 are formed in the through hole 2, a cutter of the cutting groove is used for processing during processing, the processed gear position is accurate, the precision of parts is improved, the first cutting groove 5 is arranged on the left side of the communicating groove 6, the communicating groove 6 is arranged on the left side of the first oil through groove 7, and the first oil through groove 7 is arranged on the left side of the second oil through groove 8; the right side of the through hole 2 is provided with the sealing groove 1, a forming cutter is directly adopted for processing when the sealing groove 1 is processed, and the through hole 2 is used as a guide, so that the coaxiality of the sealing groove 1 and the through hole 2 after processing is improved; the through hole 2 is processed by three procedures of drilling, reaming and reaming, the roughness of the processed through hole 2 is 0.8, and burrs inside the through hole 2 are removed completely after the processing is finished; an oil duct 4 is arranged in the valve body, and the oil duct 4 is realized by adopting a casting mode; the first oil through hole 3 arranged on the end surface A of the valve body is formed by drilling a hole by a forming cutter and then performing thread machining; the first oil through hole 3 is communicated with the second oil through hole 8 and the oil channel 4, the oil channel 4 is communicated with the communicating groove 6, the second oil through hole 10 is arranged on the end face B of the valve body, the third oil through hole 9 is arranged on the end face C of the valve body, the fourth oil through hole 11 is arranged on the end face A of the valve body, the fourth oil through hole 11 is communicated with the first oil through hole 7 through an oil channel hole 12, the oil channels are communicated through drilling holes, and meanwhile, a ZG1/8 plug is arranged on the surface of each hole to seal the hole opening of each drilling hole, so that the oil channels are communicated; the D-end face of the valve body is provided with a first connecting hole 13, the periphery of the sealing groove 1 is provided with a second connecting hole 14, and the first connecting hole 13 and the second connecting hole 14 are used for being connected with the outside.

Further, the number of the first connection holes 13 is four, and the four first connection holes 13 are located at four corners of the D-end surface of the valve body. The stability of connection is improved by providing four first connection holes 13.

Further, the seal groove 1 is stepped.

Further, the number of the second connection holes 14 is four, and the four second connection holes 14 are arranged in the circumferential direction of the seal groove 1 at equal angles. The stability of the connection is improved by providing four second connection holes 14.

Further, the F-end face of the valve body is provided with four third connecting holes 15, and the four third connecting holes 15 are arranged at four corners of the F-end face of the valve body. The stability of the connection is improved by providing four third connection holes 15. The valve body can be made of HT250, RUt300, etc. cast iron powder.

Further, the outer shape of the valve body is a nearly cubic structure.

Further, the orifice roughness of the first oil passing hole 3, the second oil passing hole 10, the third oil passing hole 9 and the fourth oil passing hole 11 is 3.2. The first oil through hole 3, the second oil through hole 10, the third oil through hole 9 and the fourth oil through hole 11 are integrally processed by spot facing drilling, so that the perpendicularity of an orifice sealing plane and threads is improved, the orifice sealing effect can be improved, and the roughness of the orifice plane is ensured during processing.

The valve body is cast, only one through hole 2 blank hole and one oil channel 4 need to be cast inside, the casting quality stability is greatly improved due to the simple structure in the casting process, meanwhile, the valve body is of a structure close to a cube in the external shape, the positioning is convenient in the processing process, the processing surfaces can be mutually positioned, the processing is very convenient in the processing process, the processing can be carried out by adopting simple positioning and fixing, and the manpower and material resources are saved.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hydrovalve valve body of convenient processing, includes the valve body, its characterized in that: the valve body is provided with a through hole (2), a first cutting groove (5), a communicating groove (6), a first oil through groove (7) and a second oil through groove (8) are arranged in the through hole (2), a sealing groove (1) is arranged on the right side of the through hole (2), the first cutting groove (5) is arranged on the left side of the communicating groove (6), the communicating groove (6) is arranged on the left side of the first oil through groove (7), the first oil through groove (7) is arranged on the left side of the second oil through groove (8), an oil duct (4) is arranged in the valve body, a first oil through hole (3) is arranged on the end face A of the valve body, the first oil through hole (3), the second oil through groove (8) and the oil duct (4) are communicated with each other, the oil duct (4) and the communicating groove (6) are communicated with each other, and a second oil through hole (10) is arranged on, the C terminal surface of valve body is provided with third through oil hole (9), the A terminal surface of valve body is provided with fourth through oil hole (11), fourth through oil hole (11) link up with first logical oil groove (7) through oil duct hole (12), the D terminal surface of valve body is provided with first connecting hole (13), seal groove (1) periphery is provided with second connecting hole (14).