WO2018039859A1

WO2018039859A1 - Monolithic multi-way valve body casting

Info

Publication number: WO2018039859A1
Application number: PCT/CN2016/097139
Authority: WO
Inventors: 丁洋
Original assignee: 丁洋
Priority date: 2016-08-29
Filing date: 2016-08-29
Publication date: 2018-03-08

Abstract

Disclosed is a monolithic multi-way valve body casting, comprising a valve main body (1). The valve main body (1) is cuboid in shape, and is internally provided with a main flow channel, a transverse flow channel (2), a horizontal slanted flow channel (3), an auxiliary flow channel and flow channel ports, wherein the transverse flow channel (2) is located above the main flow channel, the horizontal slanted flow channel (3) is located below the main flow channel, the main flow channel comprises five horizontal longitudinal flow channels from left to right, the horizontal longitudinal flow channels are provided with several oil grooves, and the transverse flow channel and the horizontal slanted flow channel are in communication with the main flow channel through the oil grooves. The casting has the advantages of high integration degree, reasonable and compact structure, high reliability, convenience in casting, use and maintenance, safety, energy conservation, long service life, wide application range, being capable of replacing imported products, greatly increasing first pass yield of castings, and lowering casting costs.

Description

An overall multi-way valve body casting

Technical field

The invention relates to the technical field of mechanical equipment manufacturing, in particular to an integral multi-way valve body casting.

Background technique

Although China is currently a big country in engineering machinery manufacturing, its industry is not strong, and the production of medium and low-end products is overcapacity. High-end hydraulic components are almost completely dependent on imports. The development of the hydraulic industry lags behind the development of the mainframe industry and has become a constraint to the development of China's equipment manufacturing industry. The main bottleneck. At present, the overall manufacturing technology level of China's hydraulic parts industry still has a large gap compared with international advanced countries.

The overall multi-way valve is a key component of the hydraulic control system of large excavators. The hydraulic valve structure and precision requirements of large excavators are very high, especially for some multi-oil valves. During the working process, the temperature rises rapidly and the temperature is too high. The hydraulic valve can not work stably, and the wear amount is large. The pressure of the hydraulic system may cause leakage of the valve body under the action of pressure pulsation or shock vibration, and the pressure is more likely to leak under the high pressure working condition of ≥35Mpa, and the valve body casting shrinkage and shrinkage. Casting problems such as looseness and internal venting are often defects of the product, requiring higher internal tissue compactness and a straightness of the main valve hole casting blank of less than 1.0 mm.

Summary of the invention

The object of the present invention is to provide an integrated multi-way valve with high integration degree, reasonable and compact structure, high reliability, convenient casting, convenient use and maintenance, safety, energy saving, long service life and wide application range. Body castings.

In order to solve the above technical problem, the present invention provides an integral multi-way valve body casting, comprising a valve body, the valve body is a quadrangular body, and the main body of the valve body is provided with a main flow path, a lateral flow path, and a horizontal level. An oblique flow channel, an auxiliary flow channel and a flow channel opening, the lateral flow channel is located above the main flow channel, the horizontal oblique flow channel is located below the main flow channel, and the auxiliary flow channel is a plurality of The main body inner passage, the lateral flow passage and the horizontal oblique flow passage of the valve body, the flow passage opening is located on each surface of the valve body main body, and the main flow passage, the lateral flow passage, the horizontal oblique flow passage and the inner body of the valve body The auxiliary flow channels are corresponding and connected.

Further, the main flow channel includes five horizontal longitudinal flow channels, and the five horizontal longitudinal flow channels are parallel to each other and in the same plane, and from left to right are a first longitudinal flow path, a second longitudinal flow path, and a third longitudinal flow path. The fourth longitudinal flow path and the fifth longitudinal flow path each penetrate the front and rear surfaces of the valve body.

Further, the first longitudinal flow path is provided with thirteen oil grooves from the front to the rear, which are the first oil trough to the thirteenth oil trough of the first longitudinal flow passage, and the tenth longitudinal flow passage is provided with the ten from the front to the rear. An oil tank, which is a first oil tank to an eleventh oil tank of a second longitudinal flow passage, wherein the third longitudinal flow passage is provided with eleven oil tanks from the front to the rear, and the first oil tanks of the third longitudinal flow passage are sequentially An eleventh oil tank, wherein the fourth longitudinal flow passage is provided with nine oil grooves from the front to the rear, which are the first oil tank to the ninth oil tank of the fourth longitudinal flow passage, and the twelve longitudinal flow passages are provided with twelve from the front to the rear. The oil tanks are, in order, the first oil tank to the twelfth oil tank of the fifth longitudinal flow passage.

Specifically, the fifth oil groove of the fourth longitudinal flow path extends upward and communicates with the lateral flow path, and passes through the lateral flow path to the upper surface of the valve body, the oblique flow path is elongated, One end of the oblique flow passage communicates with the ninth oil groove of the second longitudinal flow passage, and the other end communicates with the seventh oil groove of the fifth longitudinal flow passage.

Further, a first n-type flow channel is disposed above the first longitudinal flow channel, and the fourth oil groove and the ninth oil groove of the first longitudinal flow channel are communicated by the first n-type flow channel, the second longitudinal direction a second n-type flow channel is disposed above the flow channel, the fourth oil groove and the seventh oil groove of the second longitudinal flow channel are communicated through the second n-type flow channel, and the third longitudinal flow channel is provided with a third portion An n-type flow passage, the fourth oil groove and the eighth oil groove of the third longitudinal flow passage are communicated by the third n-type flow passage, and the sixth longitudinal flow passage is provided above the fifth longitudinal flow passage, the fifth longitudinal flow The second oil tank, the seventh oil tank and the ninth oil tank extend upward and communicate with the sixth longitudinal flow passage, and continue to extend upward to the upper surface of the valve body, the first n-type flow passage and the second n-type The flow passage, the third n-type flow passage, and the sixth longitudinal flow passage both span the lateral flow passage.

Further, a vertical flow path is disposed between the third oil groove of the third longitudinal flow path and the third oil groove of the fourth longitudinal flow path, and the vertical flow path extends through the upper and lower surfaces of the entire valve body.

Further, the first oil grooves of the adjacent horizontal longitudinal flow channels communicate with each other, and the second oil grooves of the adjacent horizontal longitudinal flow paths communicate with each other, and the thirteenth oil groove and the second longitudinal flow of the first longitudinal flow path The eleventh oil groove of the track, the eleventh oil groove of the third longitudinal flow path, the ninth oil groove of the fourth longitudinal flow path, and the twelfth oil groove of the fifth longitudinal flow path are adjacent to each other, the second longitudinal flow The tenth oil groove of the track, the tenth oil groove of the third longitudinal flow path, the eighth oil groove of the fourth longitudinal flow path, and the eleventh oil groove of the fifth longitudinal flow path are adjacent to each other Inter-connected, the fifth oil groove of the first longitudinal flow path is in communication with the fifth oil groove of the second longitudinal flow path, and the eleventh oil groove of the first longitudinal flow path is in communication with the ninth oil groove of the second longitudinal flow path, The sixth oil groove of the second longitudinal flow path communicates with the sixth oil groove of the third longitudinal flow path, and the second oil groove of the fourth longitudinal flow path communicates with the fourth oil groove of the fifth longitudinal flow path.

Further, a Y-shaped flow channel is disposed between the third longitudinal flow channel and the fourth longitudinal flow channel, and the fifth oil groove of the third longitudinal flow channel, the seventh oil groove, and the fifth oil groove of the fourth longitudinal flow channel are passed through a Y-shaped flow passage is connected, a T-shaped flow passage is disposed between the fourth longitudinal flow passage and the fifth longitudinal flow passage, and a fourth oil tank, a sixth oil tank, and a fifth longitudinal flow passage of the fourth longitudinal flow passage are provided. An eight oil sump is communicated through the T-shaped flow passage, a right side of the fifth longitudinal flow passage is provided with a horizontal C-shaped flow passage, and a third oil sump of the fifth longitudinal flow passage and the ninth oil sump are connected by the C-shaped flow passage The intermediate portion of the C-shaped flow passage extends upwardly to communicate with the lateral flow passage and extends to the upper surface of the valve body.

Further, each of the front and rear sides of the valve body is provided with five first flow passages that are in one-to-one correspondence with the first longitudinal flow passage to the fifth longitudinal flow passage;

a second flow passage opening communicating with the lateral flow passage is disposed on each of the left and right side surfaces of the valve body;

The third body of the valve body is provided with three third flow passages, and the second oil groove, the sixth oil groove and the twelfth oil groove of the first longitudinal flow path respectively extend leftward to the left side surface of the valve body, and The three third flow passages correspond one-to-one and are connected to each other;

a fourth flow passage opening communicating with the C-shaped flow passage is disposed on a right side surface of the valve body;

a front surface of the valve body is provided with a fifth flow passage communicating with the sixth longitudinal flow passage;

a sixth flow channel is disposed on the front surface of the valve body, and the second oil groove of the first longitudinal flow channel extends upwardly and then extends toward the front surface of the valve body and communicates with the sixth flow passage;

The upper surface of the valve body is provided with a seventh flow passage communicating with the fifth oil groove of the fourth longitudinal flow passage;

The upper surface of the valve body is provided with three eighth flow passages corresponding to and communicating with the second oil tank, the seventh oil tank and the ninth oil tank of the fifth longitudinal flow passage;

The upper surface of the valve body is provided with three ninth flow passages, and the middle portion of the first n-type flow passage at the center, the second n-type flow passage, and the top portion of the third n-type flow passage extend downwardly respectively. The lateral flow passages are connected, and respectively extend upward to the upper surface of the valve body to communicate with the three ninth flow passages;

The upper and lower surfaces of the valve body are respectively provided with a tenth flow passage corresponding to the vertical flow passage and connected;

The upper surface of the valve body is provided with a tenth first-class crossing that communicates with the middle of the C-shaped flow passage;

The upper surface of the valve body is provided with six twelfth flow passages, a fifth oil groove of the first longitudinal flow path, a third oil groove of the second longitudinal flow path, and an eighth oil groove and a third longitudinal flow path. The third oil tank and the ninth oil tank and the fourth longitudinal oil flow seventh oil tank respectively extend upward to the upper surface of the valve body main body, and are in one-to-one correspondence with the six twelfth flow passage openings;

The upper surface of the valve body is provided with a thirteenth flow passage opening, and the middle of the fourth oil passage of the fourth longitudinal flow passage and the fifth oil passage communication portion of the fifth longitudinal flow passage extend upward and the thirteenth flow passage opening Connected

The lower surface of the valve body is provided with five fourteenth flow passages communicating with the oblique flow passage;

The first surface of the valve body is provided with eight fifteenth flow passage ports, a second oil groove and a twelfth oil groove on the first longitudinal flow path, and a second oil groove and a tenth oil groove on the third longitudinal flow path. The second oil tank and the eighth oil tank on the four longitudinal flow passages, the first oil tank and the twelfth oil tank on the fifth longitudinal flow passage respectively extend downward to the lower surface of the valve body main body, and correspond to the eight fifteenth flow passage ports one by one And connected;

a 16th flow passage opening communicating with the T-shaped flow passage is disposed on a lower surface of the valve body;

a seventh passage port is disposed on a lower surface of the valve body, and a tenth oil groove on the fifth longitudinal flow path extends to the right and communicates with the seventeenth flow passage;

An eighteenth flow channel is disposed on a lower surface of the valve body, and a seventh oil groove on the fifth longitudinal flow channel extends downwardly and communicates with the eighteenth flow passage;

The third surface of the valve body is provided with three nineteenth flow passages, the middle of the first longitudinal flow passage second oil groove and the second longitudinal flow passage second oil groove, and the first longitudinal flow passage fifth The middle portion of the fifth oil groove connecting section of the oil groove and the second longitudinal flow passage, the middle portion of the first longitudinal flow passage eleven oil groove and the second longitudinal flow passage nin oil groove connecting portion respectively extend downward and respectively with three nineteenth The flow passages correspond one-to-one and are connected to each other.

Specifically, the valve body is cast and integrally molded.

The overall multi-way valve body casting of the invention has the following beneficial effects: high integration degree, reasonable and compact structure, high reliability, convenient casting, convenient use and maintenance, safety, energy saving, long service life and wide application range, and can completely replace imported products. The casting qualification rate is greatly improved and the casting cost is reduced. It is the development direction of the domestic large-scale excavator hydraulic system in the future, and the development trend is good.

DRAWINGS

In order to more clearly illustrate the technical solution of the present invention, the following will be described in the embodiment or the prior art. BRIEF DESCRIPTION OF THE DRAWINGS The drawings used in the following description are briefly introduced. It is obvious that the drawings in the following description are only some embodiments of the present invention, and those skilled in the art can also These figures are taken in other figures.

Figure 1 is a front view of the present invention;

Figure 2 is a cross-sectional view taken along the line AA-AA of the present invention;

Figure 3 is a cross-sectional view of the AD-AD direction of the present invention:

Figure 4 is a first plan view of the present invention;

Figure 5 is a cross-sectional view of the AH-AH direction of the present invention;

Figure 6 is a cross-sectional view taken along the line J-J of the present invention;

Figure 7 is a cross-sectional view taken along the line I-I of the present invention;

Figure 8 is a cross-sectional view taken along the line K-K of the present invention;

Figure 9 is a cross-sectional view of the O-O direction of the present invention;

Figure 10 is a cross-sectional view taken along the line P-P of the present invention;

Figure 11 is a cross-sectional view taken along the line S-S of the present invention;

Figure 12 is a cross-sectional view taken along the line T-T of the present invention;

Figure 13 is a cross-sectional view taken along line U-U of the present invention;

Figure 14 is a cross-sectional view taken along the line V-V of the present invention;

Figure 15 is a cross-sectional view taken along the line W-W of the present invention;

Figure 16 is a bottom plan view of the present invention;

Figure 17 is a left side view of the present invention;

Figure 18 is a right side view of the present invention;

Figure 19 is a second plan view of the present invention.

Wherein, the reference numerals in the figure correspond to: 1-valve body, 2-transverse flow path, 3-oblique flow path, 4-first longitudinal flow path, 5-second longitudinal flow path, 6-third longitudinal direction Flow path, 7-fourth longitudinal flow path, 8- fifth longitudinal flow path, 9-first n-type flow path, 10-second n-type flow path, 11-third n-type flow path, 12-sixth Longitudinal flow passage, 13-vertical flow passage, 14-Y flow passage, 15-T flow passage, 16-C flow passage, 17-first flow passage, 18-second flow passage, 19-third flow passage , 20-fourth runner, 21-fifth runner, 22-sixth runner, 23-seventh runner, 24-eight runner, 25-ninth runner, 26-tenth runner, 27- Tenth-class crossing, 28-Twelfth runner, 29-thirteenth runner, 30-fourteenth runner, 31-fifteenth runner, 32-thixth runner, 33- Seventeen-way crossing, 34-eighteenth crossing, 35-thirteenth crossing, 41 - a first longitudinal flow passage first oil groove, 42 - a first longitudinal flow passage 13th oil groove.

detailed description

The technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention. 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 obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.

Example:

Referring to FIG. 1 to FIG. 19, the present invention provides an integral multi-way valve body casting, comprising a valve body 1 having a square body shape, and a main body is disposed inside the valve body 1 a transverse flow channel 2, a horizontal oblique flow channel 3, an auxiliary flow channel and a flow channel opening, the lateral flow channel 2 is located above the main flow channel, and the horizontal oblique flow channel 3 is located below the main flow channel, the auxiliary a plurality of flow passages for connecting the main body of the valve body main body 1 , the lateral flow passage 2 and the horizontal oblique flow passage 3 , the flow passage opening being located on each surface of the valve body 1 , and the valve body 1 The inner main flow path, the lateral flow path 2, the horizontal oblique flow path 3, and the auxiliary flow path correspond to and communicate with each other.

Further, the main flow channel comprises five horizontal longitudinal flow channels, and the five horizontal longitudinal flow channels are parallel to each other and in the same plane, and from left to right are the first longitudinal flow channel 4, the second longitudinal flow channel 5, and the third longitudinal flow. The passage 6, the fourth longitudinal flow passage 7, and the fifth longitudinal flow passage 8, each of which extends through the front and rear surfaces of the valve body 1.

Further, the first longitudinal flow path 4 is provided with thirteen oil grooves from the front to the rear, which are the first oil groove 41 to the thirteenth oil groove 42 of the first longitudinal flow path 4, and the second longitudinal flow path 5 There are eleven oil tanks from the front to the back, which are the first oil tank to the eleventh oil tank of the second longitudinal flow passage 5, and the third longitudinal flow passage 6 is provided with eleven oil tanks from the front to the rear, in order a first oil trough to an eleventh oil trough of the third longitudinal flow passage 6, wherein the fourth longitudinal flow passage 7 is provided with nine oil grooves from the front to the rear, which are the first oil tank to the ninth oil tank of the fourth longitudinal flow passage 7, The fifth longitudinal flow passage 8 is provided with twelve oil grooves from the front to the rear, which are the first to the twelfth oil grooves of the fifth longitudinal flow path 8 in this order.

Specifically, the fifth oil groove of the fourth longitudinal flow path 7 extends upward and communicates with the lateral flow path 2, and passes through the lateral flow path 2 to the upper surface of the valve body main body 1, and the oblique flow path 3 is long. In a strip shape, one end of the inclined flow path 3 communicates with the ninth oil groove of the second longitudinal flow path 5, and the other end communicates with the seventh oil groove of the fifth longitudinal flow path 8.

Further, a first n-type flow path 9 is disposed above the first longitudinal flow path 4, and the fourth oil groove and the ninth oil groove of the first longitudinal flow path 4 are communicated through the first n-type flow path 9, a second n-type flow channel 10 is disposed above the second longitudinal flow channel 5, and the fourth oil channel and the seventh oil groove of the second longitudinal flow channel 5 are communicated through the second n-type flow channel 10, the third longitudinal direction A third n-type flow passage 11 is disposed above the flow passage 6, and the fourth oil passage and the eighth oil passage of the third longitudinal flow passage 6 are communicated through the third n-type flow passage 11, the fifth longitudinal flow passage 8 A sixth longitudinal flow passage 12 is disposed above, and the second oil tank, the seventh oil tank and the ninth oil groove of the fifth longitudinal flow passage 8 extend upward and communicate with the sixth longitudinal flow passage 12, and continue to extend upward to the valve body In the upper surface, the first n-type flow path 9, the second n-type flow path 10, the third n-type flow path 11 and the sixth longitudinal flow path 12 all straddle the lateral flow path 2.

Further, a vertical flow path 13 is provided between the third oil groove of the third longitudinal flow path 6 and the third oil groove of the fourth longitudinal flow path 7, and the vertical flow path 13 extends through the upper and lower surfaces of the entire valve body 1.

Further, the first oil grooves of the adjacent horizontal longitudinal flow channels communicate with each other, and the second oil grooves of the adjacent horizontal longitudinal flow paths communicate with each other, and the thirteenth oil groove and the second longitudinal direction of the first longitudinal flow path 4 The eleventh oil groove of the flow path 5, the eleventh oil groove of the third longitudinal flow path 6, the ninth oil groove of the fourth longitudinal flow path 7, and the twelfth oil groove of the fifth longitudinal flow path 8 are adjacent to each other. The tenth oil groove of the second longitudinal flow path 5, the tenth oil groove of the third longitudinal flow path 6, the eighth oil groove of the fourth longitudinal flow path 7, and the eleventh oil groove of the fifth longitudinal flow path 8 are adjacent to each other. The fifth oil groove of the first longitudinal flow path 4 communicates with the fifth oil groove of the second longitudinal flow path 5, the eleventh oil groove of the first longitudinal flow path 4 and the ninth oil groove of the second longitudinal flow path 5. In communication, the sixth oil groove of the second longitudinal flow path 5 communicates with the sixth oil groove of the third longitudinal flow path 6, and the second oil groove of the fourth longitudinal flow path 7 communicates with the fourth oil groove of the fifth longitudinal flow path 8.

Further, a Y-shaped flow path 14 is disposed between the third longitudinal flow path 6 and the fourth longitudinal flow path 7, and the fifth oil groove, the seventh oil groove and the fourth longitudinal flow path 7 of the third longitudinal flow path 6 The fifth oil groove is communicated through the Y-shaped flow passage 14, and the T-shaped flow passage 15 is disposed between the fourth longitudinal flow passage 7 and the fifth longitudinal flow passage 8, and the fourth oil groove of the fourth longitudinal flow passage 7 is The eighth oil groove and the eighth oil groove of the fifth longitudinal flow passage 8 are communicated through the T-shaped flow passage 15, and the right side of the fifth longitudinal flow passage 8 is provided with a horizontal C-shaped flow passage 16, and the fifth longitudinal flow passage 8 The third oil sump and the ninth oil sump are in communication with the C-shaped flow passage 16, and the intermediate portion of the C-shaped flow passage 16 extends upwardly to communicate with the lateral flow passage 2 and extends up to the upper surface of the valve body 1.

Further, the valve body main body 1 is provided on each of the front and rear side surfaces of the first flow passages 17 that are in one-to-one correspondence with the first longitudinal flow passage 4 to the fifth longitudinal flow passage 8;

The left and right sides of the valve body 1 are respectively provided with a second flow passage communicating with the lateral flow passage 2 18;

The third body channel 19 is disposed on the left side surface of the valve body main body 1. The second oil groove, the sixth oil groove and the twelfth oil groove of the first longitudinal flow path 4 respectively extend leftward to the left side of the valve body 1 The side surface is in one-to-one correspondence with and connected to the three third flow channel openings 19;

The right side surface of the valve body 1 is provided with a fourth flow port 20 communicating with the C-shaped flow passage 16;

The front surface of the valve body 1 is provided with a fifth flow passage 21 communicating with the sixth longitudinal flow passage 12;

The front surface of the valve body 1 is provided with a sixth flow port 22, and the second oil groove of the first longitudinal flow path 4 extends upwardly and then extends toward the front surface of the valve body, and the sixth flow port 22 Connected

The upper surface of the valve body 1 is provided with a seventh flow passage 23 communicating with the fifth oil groove of the fourth longitudinal flow passage 7;

The upper surface of the valve body body 1 is provided with three eighth channel ports 24 corresponding to the second oil groove, the seventh oil groove and the ninth oil groove of the fifth longitudinal flow channel 8 and communicating with each other;

The upper surface of the valve body body 1 is provided with three ninth flow channel openings 25, respectively, at the top of the first n-type flow channel 9 at the center, at the top of the second n-type flow channel 10 and at the top of the third n-type flow channel 11 respectively Extending downwardly to communicate with the lateral flow passage 2, and extending upwardly to the upper surface of the valve body 1 to communicate with the three ninth flow passages 25;

The upper and lower surfaces of the valve body 1 are respectively provided with a tenth flow passage opening 26 corresponding to the vertical flow passage 13 and communicating;

The upper surface of the valve body body 1 is provided with a tenth first-class crossing 27 communicating with the middle of the C-shaped flow passage 16;

The upper surface of the valve body 1 is provided with six twelfth flow passages 28, a fifth oil groove of the first longitudinal flow passage 4, a third oil groove and an eighth oil groove of the second longitudinal flow passage 5, and a third longitudinal direction. The third oil groove of the flow passage 6 and the seventh oil groove of the ninth oil groove and the fourth longitudinal flow 7 respectively extend upward to the upper surface of the valve body 1 and are in one-to-one correspondence with the six twelfth flow passages 28 and communicate with each other;

The upper surface of the valve body 1 is provided with a thirteenth flow passage opening 29, and the middle of the second oil groove of the fourth longitudinal flow passage 7 and the fifth oil groove communication portion of the fifth longitudinal flow passage 8 extend upward with the first The thirteen flow passages 29 are connected;

The lower surface of the valve body 1 is provided with five fourteenth flow passages 30 communicating with the oblique flow passages 3;

The 15th flow passage opening 31 is provided on the lower surface of the valve body main body, the second oil groove and the twelfth oil groove on the first longitudinal flow path 4, and the second oil groove on the third longitudinal flow path 6. And the tenth oil groove, the second oil groove and the eighth oil groove on the fourth longitudinal flow path 7, the first oil groove and the twelfth oil groove on the fifth longitudinal flow path 8 respectively extend downward to the lower surface of the valve body main body 1, Corresponding to and communicating with the eight fifteenth flow passages 31;

The first surface of the valve body 1 is provided with a sixteenth flow passage 32 communicating with the T-shaped flow passage 15;

a seventeenth flow passage opening 33 is formed on a lower surface of the valve body main body 1, and a tenth oil groove on the fifth longitudinal flow passage 8 extends to the right and communicates with the seventeenth flow passage opening 33;

The eighth surface of the valve body 1 is provided with an eighteenth flow passage 34, and the seventh oil groove on the fifth longitudinal flow passage 8 extends downward and communicates with the eighteenth flow passage 34;

The third surface of the valve body 1 is provided with three nineteenth flow passages 35, the first longitudinal flow passage 4, the second oil groove and the second longitudinal flow passage 5, the middle portion of the communication section of the second oil groove, the first longitudinal direction The middle portion of the fifth oil groove of the flow passage 4 and the fifth oil groove connecting portion of the second longitudinal flow passage 5, the middle portion of the first longitudinal flow passage 4 eleven oil groove and the second longitudinal flow passage 5 and the ninth oil groove communication portion are respectively downward It extends and is in one-to-one correspondence with and connected to the three nineteenth flow passages 35.

Specifically, the valve body is cast and integrally molded.

The main technical parameters of the overall multi-way valve body casting:

(1) Material: QT500-7

(2) Tensile strength: ≥ 420Mpa

(3) Yield strength: ≥320Mpa

(4) Hardness: HB180-230

(5) Spheroidization level: 1-3

(6) Metallographic organization should meet the assessment of GB/T 9441-2009

(7) There are no casting defects such as sand holes, pores, shrinkage holes, shrinkage, etc., and there are no defects such as sand and crevices in the inner cavity.

(8) The main valve hole straightness is less than 1.0mm

(9) Casting quantity: 80kg

The overall multi-way valve body casting of the invention has the following beneficial effects: high integration degree, reasonable and compact structure, high reliability, convenient casting, convenient use and maintenance, safety, energy saving, long service life and wide application range, and can completely replace imported products. , the casting qualification rate is greatly improved, the casting cost is reduced, and it is the future domestic The development direction of the hydraulic system of the excavator has a good development trend.

The above is only the preferred embodiments of the present invention, and the scope of the present invention is not limited thereto, and thus equivalent changes made in the claims of the present invention are still within the scope of the present invention.

Claims

An integral multi-way valve body casting, characterized in that it comprises a valve body (1), the valve body (1) is in the shape of a square, and the main body (1) of the valve body is provided with a main flow and a lateral flow. a track (2), a horizontally inclined flow path (3), an auxiliary flow path and a flow path port, the lateral flow path (2) is located above the main flow path, and the horizontal oblique flow path (3) is located at the main flow path In the lower part, the auxiliary flow passages are connected to the inside of the valve body main body (1) the main flow path, the lateral flow path (2) and the horizontal oblique flow path (3), and the flow path opening is located at the valve body. On each surface of the main body (1), it corresponds to and communicates with the inner main passage of the valve body main body (1), the lateral flow passage (2), the horizontal oblique flow passage (3), and the auxiliary flow passage.
The integral multi-way valve body casting according to claim 1, wherein the main flow path comprises five horizontal longitudinal flow paths, and the five horizontal longitudinal flow paths are parallel to each other and in the same plane, from left to right, the first longitudinal direction. a flow passage (4), a second longitudinal flow passage (5), a third longitudinal flow passage (6), a fourth longitudinal flow passage (7), and a fifth longitudinal flow passage (8), each horizontal longitudinal flow passage is continuous The front and rear surfaces of the valve body (1).
The integral multi-way valve body casting according to claim 2, wherein the first longitudinal flow passage (4) is provided with thirteen oil grooves from the front to the rear, which are in turn the first longitudinal flow passages (4). a first oil groove (41) to a thirteenth oil groove (42), wherein the second longitudinal flow path (5) is provided with eleven oil grooves from the front to the rear, and is the first oil groove of the second longitudinal flow path (5). To the eleventh oil sump, the third longitudinal flow passage (6) is provided with eleven oil grooves from the front to the rear, which are the first oil tank to the eleventh oil tank of the third longitudinal flow passage (6), respectively. The four longitudinal flow passages (7) are provided with nine oil grooves from the front to the rear, which are the first oil tank to the ninth oil tank of the fourth longitudinal flow passage (7), and the fifth longitudinal flow passage (8) is arranged from the front to the rear. There are twelve oil grooves, which in turn are the first to the twelfth oil grooves of the fifth longitudinal flow path (8).
The integral multi-way valve body casting according to claim 3, wherein the fifth oil groove of the fourth longitudinal flow passage (7) extends upward and communicates with the lateral flow passage (2) and passes through the lateral flow. a road (2) to an upper surface of the valve body (1), the oblique flow passage (3) being elongated, one end of the oblique flow passage (3) and the second longitudinal flow passage (5) The ninth oil groove is connected, and the other end is in communication with the seventh oil groove of the fifth longitudinal flow path (8).
The integral multi-way valve body casting according to claim 4, wherein a first n-type flow passage (9) is disposed above the first longitudinal flow passage (4), and the first longitudinal flow passage (4) The fourth oil sump and the ninth oil sump are communicated through the first n-type flow passage (9), and the second longitudinal flow passage (5) is provided with a second n-type flow passage (10), the second longitudinal flow The fourth oil tank and the seventh oil tank of the road (5) are connected by the second n-type flow passage (10), and the third n-type flow passage (11) is disposed above the third longitudinal flow passage (6). The fourth oil groove and the eighth oil groove of the third longitudinal flow path (6) are communicated by the third n-type flow path (11), and the sixth longitudinal flow path is provided above the fifth longitudinal flow path (8) ( 12), the second oil groove, the seventh oil groove and the ninth oil groove of the fifth longitudinal flow passage (8) extend upward and communicate with the sixth longitudinal flow passage (12), and continue to extend upward to the valve body (1) The upper surface, the first n-type flow channel (9), the second n-type flow channel (10), the third n-type flow channel (11), and the sixth longitudinal flow channel (12) all span the lateral direction Runner (2).
The integral multi-way valve body casting according to claim 3, wherein a vertical relationship between the third oil groove of the third longitudinal flow passage (6) and the third oil groove of the fourth longitudinal flow passage (7) is provided The flow passage (13) runs through the upper and lower surfaces of the entire valve body (1).
The integral multi-way valve body casting according to claim 3, wherein the first oil grooves of the adjacent horizontal longitudinal flow passages communicate with each other, and the second oil grooves of the adjacent horizontal longitudinal flow passages communicate with each other. a thirteenth oil groove of the first longitudinal flow passage (4), an eleventh oil groove of the second longitudinal flow passage (5), an eleventh oil groove of the third longitudinal flow passage (6), and a fourth longitudinal flow passage (7) The ninth oil sump is in communication with the twelfth oil groove of the fifth longitudinal flow path (8), the tenth oil groove of the second longitudinal flow path (5), and the tenth of the third longitudinal flow path (6) The oil groove, the eighth oil groove of the fourth longitudinal flow passage (7) and the eleventh oil groove of the fifth longitudinal flow passage (8) are adjacent to each other, and the fifth oil groove and the first longitudinal flow passage (4) The fifth oil groove of the two longitudinal flow passages (5) communicates, and the eleventh oil groove of the first longitudinal flow passage (4) communicates with the ninth oil groove of the second longitudinal flow passage (5), the second longitudinal flow passage The sixth oil groove of (5) is in communication with the sixth oil groove of the third longitudinal flow path (6), and the second oil groove of the fourth longitudinal flow path (7) is in communication with the fourth oil groove of the fifth longitudinal flow path (8).
The integral multi-way valve body casting according to claim 3, wherein a Y-shaped flow passage (14) is disposed between the third longitudinal flow passage (6) and the fourth longitudinal flow passage (7), Three longitudinal flow paths (6) The fifth oil tank, the seventh oil tank and the fifth oil tank of the fourth longitudinal flow passage (7) are communicated by the Y-shaped flow passage (14), the fourth longitudinal flow passage (7) and the fifth longitudinal flow passage ( 8) A T-shaped flow passage (15) is provided, and the fourth oil groove of the fourth longitudinal flow passage (7), the sixth oil groove, and the eighth oil groove of the fifth longitudinal flow passage (8) pass through the T-shaped flow passage (15) communicating, a horizontal C-shaped flow passage (16) is disposed on a right side of the fifth longitudinal flow passage (8), and a third oil passage and a ninth oil passage of the fifth longitudinal flow passage (8) pass through the C-type The flow passages (16) are in communication, and the middle portion of the C-shaped flow passages (16) extends upwardly to communicate with the lateral flow passages (2) and extends up to the upper surface of the valve body (1).
The integral multi-way valve body casting according to claim 8, wherein each of the front and rear sides of the valve body (1) is provided with five and first longitudinal flow passages (4) to fifth longitudinal flow passages ( 8) one-to-one correspondence and connected first flow passages (17);

a second flow passage opening (18) communicating with the lateral flow passage (2) is disposed on each of the left and right side surfaces of the valve body (1);

The third body channel (19) is disposed on the left side surface of the valve body (1), and the second oil groove, the sixth oil groove and the twelfth oil groove of the first longitudinal flow path (4) extend to the left respectively To the left side surface of the valve body (1), corresponding to and connected to the three third flow passages (19);

a fourth flow passage opening (20) communicating with the C-shaped flow passage (16) on a right side surface of the valve body (1);

a front surface of the valve body (1) is provided with a fifth flow passage (21) communicating with the sixth longitudinal flow passage (12);

a sixth flow passage opening (22) is disposed on the front surface of the valve body (1), and the second oil groove of the first longitudinal flow passage (4) extends upwardly and then extends toward the front surface of the valve body, and The sixth flow passage (22) is connected;

The upper surface of the valve body (1) is provided with a seventh flow passage opening (23) communicating with the fifth oil groove of the fourth longitudinal flow passage (7);

The upper surface of the valve body (1) is provided with three eighth flow passages (24) corresponding to and in communication with the second oil groove, the seventh oil groove and the ninth oil groove of the fifth longitudinal flow passage (8);

The upper surface of the valve body (1) is provided with three ninth flow passages (25), the first n-type flow passage (9) is at the center of the top, the second n-type flow passage (10) and the third n-type The top middle portion of the flow passage (11) extends downwardly to communicate with the lateral flow passage (2), respectively, and extends upward to the valve body main body (1) The surface is connected to the three ninth flow passages (25);

The upper and lower surfaces of the valve body (1) are respectively provided with a tenth flow passage opening (26) corresponding to and communicating with the vertical flow passage (13);

The upper surface of the valve body (1) is provided with a tenth first-class crossing (27) communicating with the middle of the C-shaped flow passage (16);

The upper surface of the valve body (1) is provided with six twelfth flow passage openings (28), a fifth oil groove of the first longitudinal flow passage (4), and a third oil groove of the second longitudinal flow passage (5). And the eighth oil groove, the third oil groove of the third longitudinal flow passage (6) and the seventh oil groove, and the seventh oil groove of the fourth longitudinal flow (7) respectively extend upward to the upper surface of the valve body (1), and six The twelve flow passages (28) are in one-to-one correspondence and are connected;

The upper surface of the valve body (1) is provided with a thirteenth flow passage port (29), a second oil groove of the fourth longitudinal flow passage (7) and a fifth oil groove communication portion of the fifth longitudinal flow passage (8). The middle upward extension is connected to the thirteenth flow passage (29);

The lower surface of the valve body (1) is provided with five fourteenth flow passages (30) communicating with the oblique flow passages (3);

The first surface of the valve body (1) is provided with eight fifteenth flow passage openings (31), a second oil groove and a twelfth oil groove on the first longitudinal flow passage (4), and a third longitudinal flow passage. (6) a second oil tank and a tenth oil tank, a second oil tank and an eighth oil tank on the fourth longitudinal flow passage (7), and a first oil tank and a twelfth oil tank on the fifth longitudinal flow passage (8), Each of them extends downward to the lower surface of the valve body (1), and is in one-to-one correspondence with and connected to the eight fifteenth flow passages (31);

a 16th flow passage opening (32) communicating with the T-shaped flow passage (15) is disposed on a lower surface of the valve body (1);

a seventeenth flow passage opening (33) is disposed on a lower surface of the valve body (1), and a tenth oil groove on the fifth longitudinal flow passage (8) extends to the right and the seventeenth flow passage opening ( 33) connected;

An eighteenth flow passage opening (34) is disposed on a lower surface of the valve body (1), and a seventh oil groove on the fifth longitudinal flow passage (8) extends downward and is adjacent to the eighteenth flow passage ( 34) connected;

The nineteenth flow passage opening (35) is provided on the lower surface of the valve body main body (1), and the first longitudinal flow passage (4) is connected to the second oil groove and the second longitudinal flow passage (5) Middle of the section, first longitudinal flow passage (4) fifth oil groove and second longitudinal flow passage (5) intermediate of the fifth oil groove communication section, first longitudinal flow passage (4) eleventh oil groove and second longitudinal direction The middle portion of the communicating passage (5) of the ninth oil groove is respectively extended downward and is in one-to-one correspondence with and connected to the three nineteenth flow passages (35).
The integral multi-way valve body casting according to any one of claims 1 to 9, characterized in that the valve body (1) is cast and integrally formed.