Electromagnetic control valve body casting for hydraulic component

Abstract

The utility model relates to an electromagnetic control valve body casting for a hydraulic component. A cavity in a sand box is manufactured according to the appearance of a product; large sand cores of a first longitudinal runner, a second longitudinal runner, a third longitudinal runner, a fourth longitudinal runner, a fifth longitudinal runner, a sixth longitudinal runner, a seventh longitudinal runner, an eighth longitudinal runner and a ninth longitudinal runner and matched small sand cores of a vertical runner, a transverse runner, an arc-shaped runner and other runners are designed and manufactured according to the runner structure of the product; a hollow core bar is longitudinally mounted in the large sand core, and a plurality of air holes are formed in the outer side of the hollow core bar; and when the large sand core and part of the small sand cores are combined, processed and formed, a horizontal core shooter is used for shooting sand from two directions. The sand core has the advantages that in order to reduce assembly interfaces, a secondary sand shooting process is adopted, and the problem of uncompact shooting is solved by adopting a horizontal core shooting machine to shoot sand from two directions during secondary sand shooting; the hollow pipe core bar can ensure that the main runner is not bent and exhaust can be effectively carried out to ensure that the inner wall of the runner has no air hole.

Description

TECHNICAL FIELD

[0001] The utility model relates to the valve body production field, concretely relates to a kind of electromagnetic control valve body castings for hydraulic components. BACKGROUND

[0002] To adapt to the increasing improvement of hydraulic system function requirement, stability and degree of automation control of Chinese engineering machinery product, YT-DCF20 electro-hydraulic multifunctional control valve is independently developed to match host factory according to the requirement of Shanghai Yutai Stock Company Limited. The project meets the supported content in "National Key High-tech Field" and "Current Optimal Development High-tech Industrialization Key Field Guide".

[0003] Traditional control valve is a whole control valve assembled by multiple slice valves, and needs several slice valves to be combined. YT-DCF20 adopts multiple slice valves to cast oil way uniformly, and needs to solve the problem of poor sealing between traditional slice valves in use process. Due to the integration of functions, a control valve is a multifunctional valve assembled by multiple slice valves. Due to the complex internal structure of valve body, each oil way must be communicated, but internal flow channel must be cast out once as far as possible to reduce processing cost, so the casting difficulty of product valve body blank is increased, and a series of casting problems must be solved. Due to the particularity of product structure, internal flow channel is more and more complex, and flow channel core is not easy to divide. CONTENT OF UTILITY MODEL

[0004] In order to solve the above technical problems, the utility model provides a kind of electromagnetic control valve body castings for hydraulic components, design is ingenious, and the structure is reasonable compact, and it is convenient for flow channel core to divide mold processing.

[0005] The technical scheme of the utility model:

[0006] A kind of electromagnetic control valve body castings for hydraulic components, electromagnetic control valve body castings include main body, first longitudinal flow channel, second longitudinal flow channel, third longitudinal flow channel, fourth longitudinal flow channel, fifth longitudinal flow channel, sixth longitudinal flow channel, seventh longitudinal flow channel, eighth longitudinal flow channel, ninth longitudinal flow channel, first arc-shaped flow channel, second arc-shaped flow channel, main body front design has 8 flow channel mouths, is respectively front one flow channel mouth, front two flow channel mouths, front three flow channel mouths, front four flow channel mouths, front five flow channel mouths, front six flow channel mouths, front seven flow channel mouths, front eight flow channel mouths;

[0007] Main body rear design has 8 flow channel mouths, is respectively rear one flow channel mouth, rear two flow channel mouths, rear three flow channel mouths, rear four flow channel mouths, rear five flow channel mouths, rear six flow channel mouths, rear seven flow channel mouths, rear eight flow channel mouths;

[0008] Main body lower surface design has 5 flow channel mouths, is respectively lower one flow channel mouth, lower two flow channel mouths, lower three flow channel mouths, lower four flow channel mouths, lower five flow channel mouths;

[0009] The left side of the main body is designed with two flow channel openings, namely a first left flow channel opening and a second left flow channel opening.

[0010] The right side of the main body is designed with one flow channel opening, namely a first right flow channel opening.

[0011] The front and back of the main body is designed with seven longitudinal flow channels, namely a first longitudinal flow channel, a second longitudinal flow channel, a third longitudinal flow channel, a fourth longitudinal flow channel, a fifth longitudinal flow channel, a sixth longitudinal flow channel, a seventh longitudinal flow channel, an eighth longitudinal flow channel, and a ninth longitudinal flow channel.

[0012] The first longitudinal flow channel is located at the leftmost side of the main body, and the front end of the first longitudinal flow channel is connected to the front flow channel opening, and the rear end of the first longitudinal flow channel is connected to the rear flow channel opening.

[0013] The second longitudinal flow channel and the third longitudinal flow channel are located to the right of the first longitudinal flow channel, and the second longitudinal flow channel is located above the third longitudinal flow channel. The second longitudinal flow channel is designed with five ring grooves from front to back, namely a first ring groove, a second ring groove, a third ring groove, a fourth ring groove, and a fifth ring groove. The front end of the second longitudinal flow channel is connected to the second flow channel opening, and the rear end of the second longitudinal flow channel is connected to the third flow channel opening.

[0014] The rear end of the third longitudinal flow channel is connected to the third flow channel opening, and the front end of the third longitudinal flow channel is blocked.

[0015] The first arc-shaped flow channel is located above the second longitudinal flow channel, and the front end of the first arc-shaped flow channel is connected to the first ring groove. The rear end of the first arc-shaped flow channel is connected to the fifth ring groove. The front and rear ends of the first arc-shaped flow channel are also connected to the front and rear ends of the second longitudinal flow channel near the opening position through an arc-shaped auxiliary flow channel. The lower end of the fourth ring groove is connected to the rear end of the third longitudinal flow channel near the opening position through a vertical flow channel, and the lower end of the second ring groove is connected to the front end of the third longitudinal flow channel near the opening position through a vertical flow channel.

[0016] The third ring groove is connected to the right end of the first horizontal flow channel through an L-shaped flow channel, and the left end of the first horizontal flow channel is connected to the first left flow channel opening.

[0017] The front end of the first arc-shaped flow channel is connected to the right end of the second horizontal flow channel, and the left end of the second horizontal flow channel is connected to the second left flow channel opening.

[0018] The front end of the third longitudinal flow channel is connected to the next flow channel opening through the first vertical flow channel.

[0019] The lower right side of the second longitudinal flow channel is designed with the fourth longitudinal flow channel, and the fourth longitudinal flow channel is also located above the right side of the third longitudinal flow channel.

[0020] The fourth longitudinal flow channel is designed with five annular grooves from front to back, which are the sixth annular groove, the seventh annular groove, the eighth annular groove, the ninth annular groove, the tenth annular groove, the eleventh annular groove, the twelfth annular groove, the thirteenth annular groove and the fourteenth annular groove; the front end of the fourth longitudinal flow channel is communicated with the front three flow channel openings, and the rear end of the fourth longitudinal flow channel is communicated with the rear four flow channel openings;

[0021] The second arc-shaped flow channel is designed on the left side of the fourth longitudinal flow channel, the front end of the second arc-shaped flow channel is communicated with the sixth annular groove and the seventh annular groove through two auxiliary flow channels, and the rear end of the second arc-shaped flow channel is communicated with the thirteenth annular groove and the fourteenth annular groove through two auxiliary flow channels,

[0022] The third arc-shaped flow channel is designed on the right side of the fourth longitudinal flow channel, the front end of the third arc-shaped flow channel is communicated with the eighth annular groove, the rear end of the third arc-shaped flow channel is communicated with the twelfth annular groove, and the right sides of the thirteenth annular groove and the fourteenth annular groove are communicated through the fourth arc-shaped flow channel,

[0023] A second vertical flow channel is designed above the sixth annular groove and the seventh annular groove, and the lower end of the second vertical flow channel is communicated with the sixth annular groove and the seventh annular groove through two auxiliary flow channels, and the right end of the second vertical flow channel is communicated with the upper end of the second vertical flow channel through the first arc-shaped flow channel and extends to the right rearward;

[0024] The right end of the fourth arc-shaped flow channel is communicated with the lower two flow channel openings through a vertical flow channel, the right end of the third arc-shaped flow channel is communicated with the lower three flow channel openings through a vertical flow channel near the middle position, and the upper end of the vertical flow channel is also communicated with the front five flow channel openings through the fifth longitudinal flow channel;

[0025] A sixth longitudinal flow channel is designed above the fifth longitudinal flow channel, the front end of the sixth longitudinal flow channel is communicated with the front four flow channel openings, and the rear end of the sixth longitudinal flow channel is communicated with the rear five flow channel openings; four annular grooves are designed on the upper surface of the sixth longitudinal flow channel from front to back, which are the fifteenth annular groove, the sixteenth annular groove, the seventeenth annular groove and the eighteenth annular groove; the fifteenth annular groove and the sixteenth annular groove are communicated through the fifth arc-shaped flow channel on the left side,

[0026] A seventh longitudinal flow channel is arranged on the right side of the sixth longitudinal flow channel, the front end of the seventh longitudinal flow channel is communicated with the front six flow channel openings, and the rear end of the seventh longitudinal flow channel is communicated with the rear six flow channel openings; five annular grooves are designed on the upper surface of the seventh longitudinal flow channel from front to back, which are the nineteenth annular groove, the twentieth annular groove, the twenty-first annular groove, the twenty-second annular groove and the twenty-third annular groove;

[0027] The sixth arc-shaped flow channel is designed on the right side of the seventh longitudinal flow channel, and the front end and the rear end of the sixth arc-shaped flow channel are communicated with the right side of the nineteenth annular groove and the twenty-third annular groove respectively; the seventh arc-shaped flow channel is designed above the seventh longitudinal flow channel, and the front end and the rear end of the seventh arc-shaped flow channel are connected to the front and rear positions of the sixth longitudinal flow channel close to the port; the left side of the twenty-first annular groove is communicated with the right side of the eighteenth annular groove through a Z-shaped flow channel, and the lower right side of the seventh longitudinal flow channel is designed with the eighth longitudinal flow channel, the front end of the eighth longitudinal flow channel is communicated with the front seven flow channel port, and the rear end of the eighth longitudinal flow channel is communicated with the rear seven flow channel port; four annular grooves are sequentially designed on the eighth longitudinal flow channel from front to back, which are the twenty-fourth annular groove, the twenty-fifth annular groove, the twenty-sixth annular groove and the twenty-seventh annular groove; the left side of the twenty-fifth annular groove is communicated with the lower end of the twentieth annular groove through an L-shaped flow channel, and the left side of the twenty-sixth annular groove is also communicated with the lower end of the twenty-second annular groove through an L-shaped flow channel;

[0028] The ninth longitudinal flow channel is designed on the right side of the eighth longitudinal flow channel, the front end of the ninth longitudinal flow channel is communicated with the front eight flow channel port, and the rear end of the ninth longitudinal flow channel is communicated with the rear eight flow channel port; five annular grooves are sequentially designed on the ninth longitudinal flow channel from front to back, which are the twenty-eighth annular groove, the twenty-ninth annular groove, the thirtieth annular groove, the thirty-first annular groove and the thirty-second annular groove; the left side of the thirtieth annular groove is communicated with the twenty-fourth annular groove through an S-shaped flow channel, and the left side of the thirty-first annular groove is communicated with the twenty-seventh annular groove through an S-shaped flow channel;

[0029] The eighth arc-shaped flow channel and the ninth arc-shaped flow channel are sequentially arranged above the ninth longitudinal flow channel, the ninth arc-shaped flow channel is located above the eighth arc-shaped flow channel, the front end of the eighth arc-shaped flow channel is communicated with the upper end of the twenty-eighth annular groove, and the rear end of the eighth arc-shaped flow channel is communicated with the upper end of the thirty-second annular groove; the front end and the rear end of the ninth arc-shaped flow channel are communicated with the front and rear ends of the eighth longitudinal flow channel close to the port; the lower end of the twenty-ninth annular groove is communicated with the lower four flow channel port through a vertical flow channel, and the lower end of the thirty-second annular groove is communicated with the lower five flow channel port through a vertical flow channel; the rear end of the ninth arc-shaped flow channel is communicated with the right one flow channel port through an L-shaped flow channel.

[0030] The main body is in the shape of a rectangular body, a rectangular recess is designed at the left rear corner position and the right front corner position on the upper surface of the main body respectively, and product identification is arranged at the bottom of the rectangular recess; a longitudinal rib is arranged at the left third and the right third positions on the upper surface of the main body respectively, the front end of the longitudinal rib on the right side extends to the corner position of the rectangular recess on the right side, and an arc-shaped protrusion is further arranged on the left side of the front end of the longitudinal rib.

[0031] The right side of the lower surface of the main body is provided with a rectangular protrusion, and the left side of the rectangular protrusion is provided with two circular protrusions which are distributed in front and back, the left side of the two circular protrusions is provided with an "8" shaped protrusion, and the rear end of the "8" shaped protrusion is inclined to the right side; the left end of the irregular protrusion is designed as two large semicircular protrusions, the right end of the irregular protrusion is also designed as two large semicircular protrusions, and the front end of the irregular protrusion is also designed as a large semicircular protrusion; the rear end of the irregular protrusion is also designed as a rectangular protrusion; the lower surface of the main body is provided with product marks in the grooves between the protrusions.

[0032] The right side of the main body is designed with a longitudinal arc-shaped protrusion; the upper side and the right side of the front end of the longitudinal arc-shaped protrusion are communicated through a step groove.

[0033] The valve body has the advantages that the internal flow channel of the valve body is reasonably and compactly designed, the arc-shaped flow channel, the vertical flow channel and the effective connection of the vertical flow channel and the longitudinal flow channel are adopted, the core parting and mold parting difficulties of the valve body flow channel are solved, the multiple flow channel casting valve body can be manufactured at one time, and subsequent machining is reduced; and the valve body does not need to be processed by slicing. BRIEF DESCRIPTION OF DRAWINGS

[0034] Figures 1-2 It is the front and rear perspective view schematic diagram of the utility model.

[0035] Figures 3-4 It is the front view different angle perspective view schematic diagram of the utility model.

[0036] Figure 5 It is the horizontal view cross-sectional view of the first horizontal flow channel of the utility model.

[0037] Figure 6 It is the horizontal view cross-sectional view of the second, sixth and seventh longitudinal flow channels of the utility model.

[0038] Figure 7 It is the horizontal view cross-sectional view of the first, fourth, fifth, eighth and ninth longitudinal flow channels of the utility model.

[0039] Figure 8 It is the horizontal view cross-sectional view of the third longitudinal flow channel of the utility model.

[0040] Figure 9 It is the vertical side view cross-sectional view of the first longitudinal flow channel of the utility model.

[0041] Figure 10 It is the vertical side view cross-sectional view of the second and third longitudinal flow channels of the utility model.

[0042] Figure 11 It is the vertical side view cross-sectional view of the fourth longitudinal flow channel of the utility model.

[0043] Figure 12 is the vertical side view sectional view of the sixth longitudinal flow passage of the utility model.

[0044] Figure 13 is the vertical side view sectional view of the fifth longitudinal flow passage of the utility model.

[0045] Figure 14 is the vertical side view sectional view of the seventh longitudinal flow passage of the utility model.

[0046] Figure 15 is the vertical side view sectional view of the eighth longitudinal flow passage of the utility model.

[0047] Figure 16 is the vertical side view sectional view of the ninth longitudinal flow passage of the utility model. DETAILED DESCRIPTION

[0048] Referring to the drawings Figures 1-16 A kind of electromagnetic control valve body casting for hydraulic components, electromagnetic control valve body casting includes main body 1, first longitudinal flow passage 11, second longitudinal flow passage 12, third longitudinal flow passage 13, fourth longitudinal flow passage 14, fifth longitudinal flow passage 15, sixth longitudinal flow passage 16, seventh longitudinal flow passage 17, eighth longitudinal flow passage 18, ninth longitudinal flow passage 19, first arc-shaped flow passage 21, second arc-shaped flow passage 22, third arc-shaped flow passage 23, fourth arc-shaped flow passage 24, fifth arc-shaped flow passage 25, sixth arc-shaped flow passage 26, seventh arc-shaped flow passage 27, eighth arc-shaped flow passage 28, ninth arc-shaped flow passage 29, main body 1 front design has 8 flow passage mouths, is front one flow passage mouth 31, front two flow passage mouth 32, front three flow passage mouth 33, front four flow passage mouth 34, front five flow passage mouth 35, front six flow passage mouth 36, front seven flow passage mouth 37, front eight flow passage mouth 38;

[0049] Main body 1 rear design has 8 flow passage mouths, is rear one flow passage mouth 41, rear two flow passage mouth 42, rear three flow passage mouth 43, rear four flow passage mouth 44, rear five flow passage mouth 45, rear six flow passage mouth 46, rear seven flow passage mouth 47, rear eight flow passage mouth 48;

[0050] Main body 1 lower design has 5 flow passage mouths, is lower one flow passage mouth 51, lower two flow passage mouth 52, lower three flow passage mouth 53, lower four flow passage mouth 54, lower five flow passage mouth 55;

[0051] Main body 1 left design has 2 flow passage mouths, is left one flow passage mouth 61, left two flow passage mouth 62;

[0052] Main body 1 right design has 1 flow passage mouth, is right one flow passage mouth 71;

[0053] Seven longitudinal flow channels are designed in the middle of the main body 1, which are the first longitudinal flow channel 11, the second longitudinal flow channel 12, the third longitudinal flow channel 13, the fourth longitudinal flow channel 14, the fifth longitudinal flow channel 15, the sixth longitudinal flow channel 16, the seventh longitudinal flow channel 17, the eighth longitudinal flow channel 18, and the ninth longitudinal flow channel 19;

[0054] The first longitudinal flow channel 11 is close to the leftmost side of the main body 1, the front end of the first longitudinal flow channel 11 is connected with the front flow channel port 31, and the rear end of the first longitudinal flow channel 11 is connected with the rear flow channel port 41;

[0055] The second longitudinal flow channel 12 and the third longitudinal flow channel 13 are located on the right side of the first longitudinal flow channel 11, and the second longitudinal flow channel 12 is located above the third longitudinal flow channel 13, the second longitudinal flow channel 12 is designed with five ring grooves from front to back, which are the first ring groove 101, the second ring groove 102, the third ring groove 103, the fourth ring groove 104, and the fifth ring groove 105; the front end of the second longitudinal flow channel 12 is connected with the front two flow channel port 32, and the rear end of the second longitudinal flow channel 12 is connected with the rear two flow channel port 42;

[0056] The rear end of the third longitudinal flow channel 13 is connected with the rear three flow channel port 43, and the front end of the third longitudinal flow channel 13 is blocked;

[0057] The first arc-shaped flow channel 21 is located above the second longitudinal flow channel 12, and the front end of the first arc-shaped flow channel 21 is connected with the first ring groove 101, the rear end of the first arc-shaped flow channel 21 is connected with the fifth ring groove 105, and the front and rear ends of the first arc-shaped flow channel 21 are also connected with the front and rear ends of the second longitudinal flow channel 12 close to the port position through an arc-shaped auxiliary flow channel; the lower end of the fourth ring groove 104 is connected with the rear end of the third longitudinal flow channel 13 close to the port position through a vertical flow channel, and the lower end of the second ring groove 102 is connected with the front end of the third longitudinal flow channel 13 close to the port position through a vertical flow channel;

[0058] The third ring groove 103 is connected with the right end of the first transverse flow channel 71 through an L-shaped flow channel, and the left end of the first transverse flow channel 71 is connected with the left one flow channel port 61;

[0059] The front end of the first arc-shaped flow channel 21 is connected with the right end of the second transverse flow channel 72, and the left end of the second transverse flow channel 72 is connected with the left two flow channel port 62;

[0060] The front end of the third longitudinal flow channel 13 is connected with the next flow channel port 51 through the first vertical flow channel 81;

[0061] The fourth longitudinal flow channel 14 is designed below the second longitudinal flow channel 12, and the fourth longitudinal flow channel 14 is also located above the third longitudinal flow channel 13;

[0062] The fourth longitudinal flow channel 14 is designed with five annular grooves from front to back, which are the sixth annular groove 106, the seventh annular groove 107, the eighth annular groove 108, the ninth annular groove 109, the tenth annular groove 110, the eleventh annular groove 111, the twelfth annular groove 112, the thirteenth annular groove 113 and the fourteenth annular groove 114; the front end of the fourth longitudinal flow channel 14 is communicated with the front three flow channel port 33, and the rear end of the fourth longitudinal flow channel 14 is communicated with the rear four flow channel port 44;

[0063] The second arc-shaped flow channel 22 is designed on the left side of the fourth longitudinal flow channel 14, the front end of the second arc-shaped flow channel 22 is communicated with the sixth annular groove 106 and the seventh annular groove 107 through two auxiliary flow channels, and the rear end of the second arc-shaped flow channel 22 is communicated with the thirteenth annular groove 113 and the fourteenth annular groove 114 through two auxiliary flow channels,

[0064] The third arc-shaped flow channel 23 is designed on the right side of the fourth longitudinal flow channel 14, the front end of the third arc-shaped flow channel 23 is communicated with the eighth annular groove 108, the rear end of the third arc-shaped flow channel 23 is communicated with the twelfth annular groove 112, and the right side of the thirteenth annular groove 113 and the fourteenth annular groove 114 is communicated through the fourth arc-shaped flow channel 24,

[0065] The second vertical flow channel 82 is designed above the sixth annular groove 106 and the seventh annular groove 107, and the lower end of the second vertical flow channel 82 is communicated with the sixth annular groove 106 and the seventh annular groove 107 through two auxiliary flow channels, and the right end of the second horizontal flow channel 72 is communicated with the upper end of the second vertical flow channel 82 after extending to the right after the first arc-shaped flow channel 21;

[0066] The right end of the fourth arc-shaped flow channel 24 is communicated with the lower two flow channel port 52 through a vertical flow channel, and the right end of the third arc-shaped flow channel 23 is communicated with the lower three flow channel port 53 through a vertical flow channel near the middle position, and the upper end of the vertical flow channel is also communicated with the front five flow channel port 35 through the fifth longitudinal flow channel 15;

[0067] The sixth longitudinal flow channel 16 is designed above and left of the fifth longitudinal flow channel 15, the front end of the sixth longitudinal flow channel 16 is communicated with the front four flow channel port 34, and the rear end of the sixth longitudinal flow channel 16 is communicated with the rear five flow channel port 45; four annular grooves are designed on the upper surface of the sixth longitudinal flow channel 16 from front to back, which are the fifteenth annular groove 115, the sixteenth annular groove 116, the seventeenth annular groove 117 and the eighteenth annular groove 118; the fifteenth annular groove 115 and the sixteenth annular groove 116 are communicated through the fifth arc-shaped flow channel 25 on the left side, and the seventeenth annular groove 117 is communicated with the right side of the fourth annular groove 104 through a horizontal flow channel;

[0068] The sixth longitudinal flow channel 16 is provided with a seventh longitudinal flow channel 17 on the right side, the front end of the seventh longitudinal flow channel 17 is communicated with the front six flow channel port 36, and the rear end of the seventh longitudinal flow channel 17 is communicated with the rear six flow channel port 46; five annular grooves are sequentially designed on the upper surface of the seventh longitudinal flow channel 17 from front to back, which are the nineteenth annular groove 119, the twentieth annular groove 120, the twenty-first annular groove 121, the twenty-second annular groove 122 and the twenty-third annular groove 123;

[0069] The seventh longitudinal flow channel 17 is designed with a sixth arc-shaped flow channel 26 on the right side, and the front and rear ends of the sixth arc-shaped flow channel 26 are communicated with the right sides of the nineteenth annular groove 119 and the twenty-third annular groove 123 respectively; the seventh longitudinal flow channel 17 is designed with a seventh arc-shaped flow channel 27 above, and the front and rear ends of the seventh arc-shaped flow channel 27 are connected with the front and rear positions close to the port of the sixth longitudinal flow channel 16 respectively; the left side of the twenty-first annular groove 121 is communicated with the right side of the eighteenth annular groove 118 through a Z-shaped flow channel, and the right lower side of the seventh longitudinal flow channel 17 is designed with an eighth longitudinal flow channel 18, the front end of the eighth longitudinal flow channel 18 is communicated with the front seven flow channel port 37, and the rear end of the eighth longitudinal flow channel 18 is communicated with the rear seven flow channel port 47; four annular grooves are sequentially designed on the upper surface of the eighth longitudinal flow channel 18 from front to back, which are the twenty-fourth annular groove 124, the twenty-fifth annular groove 125, the twenty-sixth annular groove 126 and the twenty-seventh annular groove 127; the left side of the twenty-fifth annular groove 125 is communicated with the lower end of the twentieth annular groove 120 through an L-shaped flow channel, and the left side of the twenty-sixth annular groove 126 is also communicated with the lower end of the twenty-second annular groove 122 through an L-shaped flow channel;

[0070] The right side of the eighth longitudinal flow channel 18 is designed with a ninth longitudinal flow channel 19, the front end of the ninth longitudinal flow channel 19 is communicated with the front eight flow channel port 38, and the rear end of the ninth longitudinal flow channel 19 is communicated with the rear eight flow channel port 48; five annular grooves are sequentially designed on the upper surface of the ninth longitudinal flow channel 19 from front to back, which are the twenty-eighth annular groove 128, the twenty-ninth annular groove 129, the thirtieth annular groove 130, the thirty-first annular groove 131 and the thirty-second annular groove 132; the left side of the thirtieth annular groove 130 is communicated with the twenty-fourth annular groove 124 through an S-shaped flow channel, and the left side of the thirty-first annular groove 131 is communicated with the twenty-seventh annular groove 127 through an S-shaped flow channel;

[0071] The eighth arc-shaped flow channel 28 is located above the ninth longitudinal flow channel 19, and the front end of the eighth arc-shaped flow channel 28 is communicated with the upper end of the twenty-eighth annular groove 128, and the rear end of the eighth arc-shaped flow channel 28 is communicated with the upper end of the thirty-second annular groove 132; the front and rear ends of the ninth arc-shaped flow channel 29 are respectively communicated with the front and rear ends of the eighth longitudinal flow channel 18 close to the port; the lower end of the twenty-ninth annular groove 129 is communicated with the lower four flow port 54 through a vertical flow channel, and the lower end of the thirty-second annular groove 132 is communicated with the lower five flow port 55 through a vertical flow channel; the rear end of the ninth arc-shaped flow channel 29 is communicated with the right one flow port 71 through an L-shaped flow channel.

[0072] The main body is rectangular in shape, and a rectangular recess is arranged at the left rear corner and the right front corner of the upper surface of the main body, and product identification is arranged at the bottom of the rectangular recess; a longitudinal rib is arranged at the left third and the right third of the upper surface of the main body, and the front end of the longitudinal rib on the right side extends to the corner of the rectangular recess on the right side, and an arc-shaped protrusion is arranged on the left side of the front end of the longitudinal rib.

[0073] The main body is rectangular in shape, and a rectangular recess is arranged at the left rear corner and the right front corner of the upper surface of the main body, and product identification is arranged at the bottom of the rectangular recess; a longitudinal rib is arranged at the left third and the right third of the upper surface of the main body, and the front end of the longitudinal rib on the right side extends to the corner of the rectangular recess on the right side, and an arc-shaped protrusion is arranged on the left side of the front end of the longitudinal rib.

[0074] The main body is rectangular in shape, and a rectangular recess is arranged at the left rear corner and the right front corner of the upper surface of the main body, and product identification is arranged at the bottom of the rectangular recess; a longitudinal rib is arranged at the left third and the right third of the upper surface of the main body, and the front end of the longitudinal rib on the right side extends to the corner of the rectangular recess on the right side, and an arc-shaped protrusion is arranged on the left side of the front end of the longitudinal rib.

[0075] During the production process of the electromagnetic control valve body casting, the sand box cavity is made according to the product shape, and then the first longitudinal runner 11, the second longitudinal runner 12, the third longitudinal runner 13, the fourth longitudinal runner 14, the fifth longitudinal runner 15, the sixth longitudinal runner 16, the seventh longitudinal runner 17, the eighth longitudinal runner 18 and the ninth longitudinal runner 19 are designed and manufactured according to the product runner structure, and then the large sand core and the matched vertical runner, horizontal runner and arc-shaped runner small sand core of the rest runners are installed in the sand box cavity, the sand box is closed, the molten iron is poured from the reserved pouring gate, and then the valve body casting is taken out after cooling, and the internal sand core is cleaned and removed, so that the machining is completed.

[0076] The hollow core bone is made of 0.5 thick iron sheet and has a hollow tube shape, and the outer diameter is designed as 4mm and the inner diameter is 3mm; the hollow core bone is uniformly provided with 20 air holes with a diameter of 2mm.

[0077] During the cleaning process of the internal sand core of the casting, the quartz sand spraying gun is used, the particle size of the sand is 50-100 mesh, the gun barrel head of the gun is inserted into the runner of the casting, and the specified positioning member at the interface position is clamped outside the runner mouth of the casting, and the interface is positioned and sprayed for 5-10 seconds.

[0078] The automatic line sanding shell method is adopted, the film sand shell improves the surface roughness of the product, the automatic line molding improves the compactness of the cavity to prevent the deformation and fracture of the runner caused by the shape expansion of the sand box.

[0079] Main technical indicators:

[0080]

Claims

1. An electromagnetic control valve body casting for hydraulic components, characterized by, The electromagnetic control valve body casting comprises a main body, a first longitudinal flow channel, a second longitudinal flow channel, a third longitudinal flow channel, a fourth longitudinal flow channel, a fifth longitudinal flow channel, a sixth longitudinal flow channel, a seventh longitudinal flow channel, an eighth longitudinal flow channel, a ninth longitudinal flow channel, a first arc-shaped flow channel and a second arc-shaped flow channel; eight flow channel openings are designed on the front face of the main body, which are a first flow channel opening, a second flow channel opening, a third flow channel opening, a fourth flow channel opening, a fifth flow channel opening, a sixth flow channel opening, a seventh flow channel opening and an eighth flow channel opening; Eight flow channel openings are designed on the rear face of the main body, which are a first flow channel opening, a second flow channel opening, a third flow channel opening, a fourth flow channel opening, a fifth flow channel opening, a sixth flow channel opening, a seventh flow channel opening and an eighth flow channel opening; Five flow channel openings are designed on the lower face of the main body, which are a first flow channel opening, a second flow channel opening, a third flow channel opening, a fourth flow channel opening and a fifth flow channel opening; Two flow channel openings are designed on the left face of the main body, which are a first flow channel opening and a second flow channel opening; One flow channel opening is designed on the right face of the main body, which is a first flow channel opening; Seven longitudinal flow channels are designed on the front and rear of the main body, which are a first longitudinal flow channel, a second longitudinal flow channel, a third longitudinal flow channel, a fourth longitudinal flow channel, a fifth longitudinal flow channel, a sixth longitudinal flow channel, a seventh longitudinal flow channel, an eighth longitudinal flow channel and a ninth longitudinal flow channel; The first longitudinal flow channel is located at the leftmost side of the main body, the front end of the first longitudinal flow channel is connected with the first flow channel opening, and the rear end of the first longitudinal flow channel is connected with the first flow channel opening; The second longitudinal flow channel and the third longitudinal flow channel are located on the right side of the first longitudinal flow channel, and the second longitudinal flow channel is located above the third longitudinal flow channel; the second longitudinal flow channel is designed with five ring grooves from front to back, which are a first ring groove, a second ring groove, a third ring groove, a fourth ring groove and a fifth ring groove; the front end of the second longitudinal flow channel is connected with the second flow channel opening, and the rear end of the second longitudinal flow channel is connected with the second flow channel opening; The rear end of the third longitudinal flow channel is connected with the third flow channel opening, and the front end of the third longitudinal flow channel is blocked; The first arc-shaped flow channel is located above the second longitudinal flow channel, the front end of the first arc-shaped flow channel is connected with the first ring groove, the rear end of the first arc-shaped flow channel is connected with the fifth ring groove, and the front and rear ends of the first arc-shaped flow channel are respectively connected with the front and rear ends of the second longitudinal flow channel near the opening through an arc-shaped auxiliary flow channel; the lower end of the fourth ring groove is connected with the rear end of the third longitudinal flow channel near the opening through a vertical flow channel, and the lower end of the second ring groove is connected with the front end of the third longitudinal flow channel near the opening through a vertical flow channel; The third ring groove is connected with the right end of the first transverse flow channel through an L-shaped flow channel, and the left end of the first transverse flow channel is connected with the first flow channel opening; The front end of the first arc-shaped flow channel is connected with the right end of the second transverse flow channel, and the left end of the second transverse flow channel is connected with the second flow channel opening; The front end of the third longitudinal flow channel is connected with the first flow channel opening through the first vertical flow channel; The fourth longitudinal flow channel is designed below the right side of the second longitudinal flow channel and above the right side of the third longitudinal flow channel; The fourth longitudinal flow channel is designed with five ring grooves from front to back, which are a sixth ring groove, a seventh ring groove, an eighth ring groove, a ninth ring groove, a tenth ring groove, an eleventh ring groove, a twelfth ring groove, a thirteenth ring groove and a fourteenth ring groove; the front end of the fourth longitudinal flow channel is connected with the third flow channel opening, and the rear end of the fourth longitudinal flow channel is connected with the fourth flow channel opening. The fourth longitudinal flow channel is designed with a second arc-shaped flow channel on the left side, the front end of the second arc-shaped flow channel is connected with the sixth ring groove and the seventh ring groove through two auxiliary flow channels, and the rear end of the second arc-shaped flow channel is connected with the thirteenth ring groove and the fourteenth ring groove through two auxiliary flow channels, The fourth longitudinal flow channel is designed with a third arc-shaped flow channel on the right side, the front end of the third arc-shaped flow channel is connected with the eighth ring groove, the rear end of the third arc-shaped flow channel is connected with the twelfth ring groove, and the right side of the thirteenth ring groove and the fourteenth ring groove is connected through a fourth arc-shaped flow channel, The sixth ring groove and the seventh ring groove are designed with a second vertical flow channel above, and the lower end of the second vertical flow channel is connected with the sixth ring groove and the seventh ring groove through two auxiliary flow channels, respectively, and the right end of the second horizontal flow channel is connected with the rear of the first arc-shaped flow channel and extends to the right and is connected with the upper end of the second vertical flow channel; The fourth arc-shaped flow channel is connected with the lower two flow channel through a vertical flow channel below the right end, the third arc-shaped flow channel is connected with the lower three flow channel through a vertical flow channel below the right end near the middle position, and the upper end of the vertical flow channel is also connected with the front five flow channel through the fifth longitudinal flow channel; The fifth longitudinal flow channel is designed with a sixth longitudinal flow channel above and left, the front end of the sixth longitudinal flow channel is connected with the front four flow channel, and the rear end of the sixth longitudinal flow channel is connected with the rear five flow channel; four ring grooves are sequentially designed on the upper surface of the sixth longitudinal flow channel near the middle position from front to back, which are the fifteenth ring groove, the sixteenth ring groove, the seventeenth ring groove and the eighteenth ring groove; the fifteenth ring groove and the sixteenth ring groove are connected through a fifth arc-shaped flow channel on the left side, and the seventeenth ring groove is connected with the right side of the fourth ring groove through a horizontal flow channel on the left side; The seventh longitudinal flow channel is arranged on the right side of the sixth longitudinal flow channel, the front end of the seventh longitudinal flow channel is connected with the front six flow channel, and the rear end of the seventh longitudinal flow channel is connected with the rear six flow channel; five ring grooves are sequentially designed on the upper surface of the seventh longitudinal flow channel from front to back, which are the nineteenth ring groove, the twentieth ring groove, the twenty-first ring groove, the twenty-second ring groove and the twenty-third ring groove; The seventh longitudinal flow channel is designed with a sixth arc-shaped flow channel on the right side, the front and rear ends of the sixth arc-shaped flow channel are connected with the right side of the nineteenth ring groove and the twenty-third ring groove, respectively; the seventh longitudinal flow channel is designed with a seventh arc-shaped flow channel above, the front and rear ends of the seventh arc-shaped flow channel are connected with the front and rear positions near the port of the sixth longitudinal flow channel, respectively; the left side of the twenty-first ring groove is connected with the right side of the eighteenth ring groove through a Z-shaped flow channel, the right lower side of the seventh longitudinal flow channel is designed with an eighth longitudinal flow channel, the front end of the eighth longitudinal flow channel is connected with the front seven flow channel, and the rear end of the eighth longitudinal flow channel is connected with the rear seven flow channel; four ring grooves are sequentially designed on the upper surface of the eighth longitudinal flow channel from front to back, which are the twenty-fourth ring groove, the twenty-fifth ring groove, the twenty-sixth ring groove and the twenty-seventh ring groove; the left side of the twenty-fifth ring groove is connected with the lower end of the twentieth ring groove through an L-shaped flow channel, and the left side of the twenty-sixth ring groove is also connected with the lower end of the twenty-second ring groove through an L-shaped flow channel; The right side of the eighth longitudinal flow channel is designed with a ninth longitudinal flow channel, the front end of the ninth longitudinal flow channel is communicated with the front eighth flow channel, and the rear end of the ninth longitudinal flow channel is communicated with the rear eighth flow channel; five annular grooves are sequentially designed on the upper side of the ninth longitudinal flow channel from front to back, which are the twenty-eighth annular groove, the twenty-ninth annular groove, the thirtieth annular groove, the thirty-first annular groove and the thirty-second annular groove; the left side of the thirtieth annular groove is communicated with the twenty-fourth annular groove through an S-shaped flow channel, and the left side of the thirty-first annular groove is communicated with the twenty-seventh annular groove through an S-shaped flow channel. The eighth arc-shaped flow channel and the ninth arc-shaped flow channel are sequentially arranged above the ninth longitudinal flow channel, the ninth arc-shaped flow channel is located above the eighth arc-shaped flow channel, the front end of the eighth arc-shaped flow channel is communicated with the upper end of the twenty-eighth annular groove, and the rear end of the eighth arc-shaped flow channel is communicated with the upper end of the thirty-second annular groove; the front end and the rear end of the ninth arc-shaped flow channel are communicated with the front end and the rear end of the eighth longitudinal flow channel close to the port position respectively; the lower end of the twenty-ninth annular groove is communicated with the fourth flow channel through a vertical flow channel, and the lower end of the thirty-second annular groove is communicated with the fifth flow channel through a vertical flow channel; the rear end of the ninth arc-shaped flow channel is communicated with the right first flow channel through an L-shaped flow channel.

2. An electromagnetic control valve body casting for hydraulic components according to claim 1, characterized in that The upper side of the main body is designed with a rectangular groove at the left rear corner position and a rectangular groove at the right front corner position, and product marks are arranged on the bottom of the rectangular grooves; the upper side of the main body is provided with a longitudinal protruding rib at one-third of the left side and one-third of the right side, and the front end of the longitudinal protruding rib on the right side extends to the corner position of the rectangular groove on the right side, and an arc-shaped protrusion is further arranged on the left side of the front end of the longitudinal protruding rib.

3. An electromagnetic control valve body casting for use in a hydraulic component according to claim 2, characterized in that The lower side of the main body is provided with a rectangular protrusion on the right side, and two circular protrusions are further arranged on the left side of the rectangular protrusion and distributed in front of and behind the rectangular protrusion, an "8" shaped protrusion is arranged on the left side of the two circular protrusions, and the rear end of the "8" shaped protrusion is inclined to the right side; an irregular protrusion is further arranged on the left side of the main body, the left end of the irregular protrusion is designed as two large semicircular protrusions, the right end of the irregular protrusion is also designed as two large semicircular protrusions, and a large semicircular protrusion is also designed at the front end of the irregular protrusion; a rectangular protrusion is also designed at the rear end of the irregular protrusion; product marks are arranged in the grooves between the protrusions on the lower side of the main body.

4. The electromagnetic control valve body casting for use in a hydraulic device according to claim 2, wherein The right side of the main body is designed with a longitudinal arc-shaped protrusion in the middle; the upper side of the front end of the longitudinal arc-shaped protrusion is communicated with the right side rectangular groove through a step groove.

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