CN212454795U - Multifunctional hydraulic motor pump cover - Google Patents
Multifunctional hydraulic motor pump cover Download PDFInfo
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- CN212454795U CN212454795U CN202021030434.3U CN202021030434U CN212454795U CN 212454795 U CN212454795 U CN 212454795U CN 202021030434 U CN202021030434 U CN 202021030434U CN 212454795 U CN212454795 U CN 212454795U
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- runner
- main body
- arc
- groove
- shaft hole
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- 230000007704 transition Effects 0.000 claims abstract description 10
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 18
- 238000005266 casting Methods 0.000 claims description 16
- 229910052742 iron Inorganic materials 0.000 claims description 9
- 239000000463 material Substances 0.000 claims description 7
- 230000007547 defect Effects 0.000 claims description 4
- 239000011148 porous material Substances 0.000 claims description 3
- 239000002893 slag Substances 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 238000010438 heat treatment Methods 0.000 description 9
- 238000009826 distribution Methods 0.000 description 3
- 238000003723 Smelting Methods 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000011081 inoculation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007711 solidification Methods 0.000 description 2
- 230000008023 solidification Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000003749 cleanliness Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
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Abstract
The invention relates to a multifunctional hydraulic motor pump cover which comprises a main body, wherein the main body comprises an upper surface, a lower surface, a left surface, a right surface, a front surface and a rear surface, and the six surfaces are in transition connection; the front surface of the main body is provided with a bulge, the bulge is provided with a circular groove, the middle of the circular groove is provided with a shaft hole, the shaft hole penetrates through the front surface and the back surface of the main body, two arc-shaped grooves are arranged in the circular groove, the rear end of the shaft hole is provided with a sinking groove, the back surface of the main body is provided with two arc-shaped grooves, the back surface of the main body is also provided with a small circular groove, the small circular groove is positioned below the sinking groove, the back surface of the main body is provided with a vertical groove, and the vertical groove sequentially penetrates through the; the runner port on the right side of the main body is connected with the runner port on the transverse right side below the main body through a right runner arranged in the main body, and the runner port on the left side of the main body is connected with the runner port on the transverse left side below the main body through a left runner arranged in the main body; the right side runner is symmetrical with the left side runner. Compact structure and convenient production.
Description
Technical Field
The invention relates to the technical field of casting, in particular to a multifunctional hydraulic motor pump cover.
Background
The pump cover is used as a key part of a hydraulic system, the requirement on a pump cover casting is very high, and the shape, the dimensional precision, the roughness, the cleanliness, the mechanical property, the microstructure and the like of an inner cavity can influence the performance, the service life, the reliability and the safety of a product to different degrees. Therefore, the casting technology of the project product can show a higher casting level and is at the leading level in China. With the continuous progress of high-end hydraulic system technology, the demand of high-end hydraulic castings is getting bigger and bigger, and the market prospect is good.
Disclosure of Invention
The utility model provides a multi-functional hydraulic motor pump cover.
The technical scheme of the invention is as follows:
a multifunctional hydraulic motor pump cover comprises a main body, wherein the main body comprises an upper surface, a lower surface, a left surface, a right surface, a front surface and a rear surface, and the six surfaces are in transition connection; the left side of the main body is provided with a runner port, the right side of the main body is provided with a runner port, three runner ports are transversely arranged below the main body, a bulge is arranged on the front of the main body, a circular groove is arranged on the bulge, a shaft hole is arranged in the middle of the circular groove and penetrates through the front and the back of the main body, two arc grooves are oppositely arranged in the circular groove, the two arc grooves are respectively positioned at the upper side and the lower side of the shaft hole, the arc grooves at the lower side of the shaft hole are connected with a flow passage opening at the transverse middle part below the main body through a middle flow passage arranged in the main body, a sinking groove is arranged at the rear end of the shaft hole, two arc-shaped grooves are oppositely arranged on the back of the main body, the two arc-shaped grooves are respectively positioned on the left side and the right side of the sinking groove, the rear surface of the main body is also provided with a small circular groove which is positioned below the sinking groove, the rear surface of the main body is provided with a vertical groove, and the vertical groove sequentially penetrates through the centers of the sinking groove and the small circular groove; the runner port on the right side of the main body is connected with the runner port on the transverse right side below the main body through a right runner arranged in the main body, and the runner port on the left side of the main body is connected with the runner port on the transverse left side below the main body through a left runner arranged in the main body; the right side runner is symmetrical with the left side runner.
The middle flow channel comprises two vertical flow channels, the two vertical flow channels are arranged one above the other, the upper end of the upper vertical flow channel is connected with the arc-shaped groove on the lower side of the shaft hole, the lower end of the upper vertical flow channel is connected with the upper end of the lower vertical flow channel through a transition flow channel, and the lower end of the lower vertical flow channel corresponds to a flow channel opening in the middle of the lower transverse direction of the connecting main body.
The left side runner, the right side runner all include a horizontal runner, an arc runner and a perpendicular runner, and the arc runner is located the left side or the right side in shaft hole, encircles outside the shaft hole, and horizontal runner one end is connected to the arc runner interlude, and the horizontal runner other end corresponds the runner mouth on main part left side or the right side, and the runner mouth on horizontal left side or the right side below the corresponding connection main part of perpendicular runner lower extreme, and the perpendicular runner upper end is through the linkage segment that transition runner connects horizontal runner and arc runner.
The parameter indexes of the hydraulic motor pump cover are as follows:
1) the material is as follows: QT 550-6.
2) Tensile strength: not less than 550 MPa.
3) Yield strength: 379 MPa.
4) Hardness: HB 179-255.
5) Has no defects of slag inclusion, pores, shrinkage cavity and shrinkage porosity.
6) Single weight: 30 kg.
The casting method of the multifunctional hydraulic motor pump cover is adopted; a sand core is arranged in the sand core mould, a cavity is formed between the sand core mould and the sand core, and molten iron is poured into the cavity to form the hydraulic motor pump cover; the sand core comprises a main core bar, a left core bar and a right core bar, wherein in the casting process, the main core bar forms a groove, a hole and a middle runner, the left core bar forms a left runner, and the right core bar forms a right runner; a top heating riser is arranged, water is fed through an inner sprue, and the inner sprue is close to the riser, so that the temperature of the riser is always higher than the temperature of a casting after the punching is finished, the riser is ensured to continuously feed the casting before the casting is completely solidified, shrinkage porosity moves to the riser, and the defects of shrinkage cavity and shrinkage porosity are eliminated; adjusting the distribution of heating pipes of the sand core mould, not placing the heating pipes at the thin wall, and controlling the curing time; considering that the heating pipes of the original sand core mould are uniformly distributed, the mould is uniformly heated, and because the wall thickness difference of the sand core is too large, the thickness of the thin wall is 4mm, and the thickness of the thick wall is 35mm, the integral strength of the sand core is influenced, namely the size precision of a casting is influenced, and even the core is directly broken; therefore, the distribution of the heating pipes of the mold is adjusted, the heating pipes are not placed at the thin wall, so that the temperature at the thin wall is low, the temperature at the wall thickness is high, and the proper curing time is controlled, so that the whole sand core can be well cured, and the quality of the sand core is ensured; the hot mold number of the riser neck is large, the solidification time is long, the spheroidization inoculation is easy to decline, the common material is used for smelting and treating molten iron, and the material requirement of a casting is difficult to meet, so when the molten iron is smelted, 0.15 percent of SiC with the granularity of less than 1mm is heated, and the chemical component proportion of the molten iron is adjusted as follows: 3.5 to 3.6 percent of C, 2.1 to 2.2 percent of Si, 0.4 to 0.5 percent of Mn, less than or equal to 0.04 percent of P, 0.3 to 0.4 percent of Cu, 0.015 to 0.02 percent of Sn, 0.004 to 0.005 percent of Sb and 0.035 to 0.05 percent of Mg.
The invention has the advantages of reasonable design, ingenious conception, compact structure and convenient production.
Drawings
FIG. 1 is a front view of a multi-function hydraulic motor pump cover.
FIG. 2 is a left side view of a multi-function hydraulic motor pump cover.
FIG. 3 is a right side view of a multi-function hydraulic motor pump cover.
FIG. 4 is a bottom view of a multi-function hydraulic motor pump cover.
FIG. 5 is a rear view of a multi-function hydraulic motor pump cover.
Fig. 6 is a schematic cross-sectional view taken along the direction C-C in fig. 1.
Fig. 7 is a perspective view of the main core.
Fig. 8 is a front view of the main mandrel.
Fig. 9 is a schematic sectional view taken along the direction D-D in fig. 8.
Fig. 10 is a side view of the main mandrel.
Fig. 11 is a schematic sectional view taken along the direction E-E in fig. 10.
Fig. 12 is a perspective view of the left and right mandrels.
Fig. 13 is a front view of the left and right mandrels.
Fig. 14 is a schematic sectional view taken along the direction F-F in fig. 13.
Fig. 15 is a schematic sectional view taken along the direction H-H in fig. 13.
Fig. 16 is a side view of the left and right mandrels.
Fig. 17 is a schematic sectional view taken along the direction G-G in fig. 16.
Fig. 18 is a schematic cross-sectional view taken along the direction K-K in fig. 16.
Fig. 19 is a schematic sectional view taken along the direction J-J in fig. 16.
Fig. 20 is a bottom view of the left and right mandrels.
In the figure, an arc groove 6 in a circular groove 3 of a bulge 2 of a main body 1, a middle flow channel 7 of an arc groove 6 in a circular groove 4, a sink groove 8, an arc groove 9, a small circular groove 10, a vertical groove 11, a right flow channel 12, a left flow channel 13, a main core rod 14, a left core rod 15 and a right core rod 16 are arranged on the back of the main body.
Detailed Description
As shown in fig. 1-20, a multifunctional hydraulic motor pump cover comprises a main body 1, wherein the main body 1 comprises an upper surface, a lower surface, a left surface, a right surface, a front surface and a rear surface, and the six surfaces are in transition connection; the left side of the main body 1 is provided with a runner port, the right side of the main body 1 is provided with a runner port, three runner ports are transversely arranged below the main body 1, the front side of the main body 1 is provided with a bulge 2, the bulge 2 is provided with a circular groove 3, the middle of the circular groove 3 is provided with a shaft hole 4, the shaft hole 4 penetrates through the front side and the rear side of the main body 1, two arc-shaped grooves 6 are oppositely arranged in the circular groove 3, the two arc-shaped grooves 6 are respectively positioned at the upper side and the lower side of the shaft hole 4, the arc-shaped grooves 6 below the shaft hole 4 are connected with the runner port at the transverse middle below the main body through a middle runner 7 arranged in the main body, the rear end of the shaft hole 4 is provided with a sink groove 8, the rear side of the main body 1 is oppositely provided with two arc-shaped grooves 9, the two arc-shaped grooves 9 are respectively positioned at, a vertical groove 11 is formed in the rear face of the main body 1, and the vertical groove 11 penetrates through the centers of the sinking groove 8 and the small circular groove 10 in sequence; the runner port on the right side of the main body 1 is connected with the runner port on the transverse right side below the main body 1 through a right runner 12 arranged in the main body, and the runner port on the left side of the main body is connected with the runner port on the transverse left side below the main body through a left runner 13 arranged in the main body; the right runner 12 is symmetrical to the left runner 13; the middle flow channel 7 comprises two vertical flow channels, one of the two vertical flow channels is arranged above the other, the upper end of the upper vertical flow channel is connected with the arc-shaped groove at the lower side of the shaft hole, the lower end of the upper vertical flow channel is connected with the upper end of the lower vertical flow channel through a transition flow channel, and the lower end of the lower vertical flow channel is correspondingly connected with a flow channel opening in the transverse middle below the main body; the left runner 13 and the right runner 12 respectively comprise a transverse runner, an arc runner and a vertical runner, the arc runner is positioned on the left side or the right side of the shaft hole and surrounds the shaft hole, the middle section of the arc runner is connected with one end of the transverse runner, the other end of the transverse runner corresponds to a runner port on the left side or the right side of the main body, the lower end of the vertical runner corresponds to a runner port on the left side or the right side below the main body, and the upper end of the vertical runner is connected with the connecting section of the transverse runner and the arc runner through a transition runner; the parameter indexes of the hydraulic motor pump cover are as follows: 1) the material is as follows: QT 550-6; 2) tensile strength: more than or equal to 550 Mpa; 3) yield strength: 379 MPa; 4) hardness: HB 179-255; 5) no slag inclusion, pores, shrinkage cavities and shrinkage porosity defects 6) single weight: 30 kg.
The casting method of the multifunctional hydraulic motor pump cover is adopted; a sand core is arranged in the sand core mould, a cavity is formed between the sand core mould and the sand core, and molten iron is poured into the cavity to form the hydraulic motor pump cover; the sand core comprises a main core bar 14, a left core bar 15 and a right core bar 16, wherein in the casting process, the main core bar forms a groove, a hole and a middle runner, the left core bar forms a left runner, and the right core bar forms a right runner; a top heating riser is arranged, and water is fed through an inner pouring gate, wherein the inner pouring gate is close to the riser; adjusting the distribution of heating pipes of the sand core mould, not placing the heating pipes at the thin wall, and controlling the curing time; the hot mold number of the riser neck is large, the solidification time is long, the spheroidization inoculation is easy to decline, the common material is used for smelting and treating molten iron, and the material requirement of a casting is difficult to meet, so when the molten iron is smelted, 0.15 percent of SiC with the granularity of less than 1mm is heated, and the chemical component proportion of the molten iron is adjusted as follows: 3.5 to 3.6 percent of C, 2.1 to 2.2 percent of Si, 0.4 to 0.5 percent of Mn, less than or equal to 0.04 percent of P, 0.3 to 0.4 percent of Cu, 0.015 to 0.02 percent of Sn, 0.004 to 0.005 percent of Sb and 0.035 to 0.05 percent of Mg.
The above disclosure is only for the preferred embodiment of the present invention, and is not intended to limit itself, and those skilled in the art should make variations and modifications without departing from the spirit of the present invention.
Claims (3)
1. A multifunctional hydraulic motor pump cover is characterized by comprising a main body, wherein the main body comprises an upper surface, a lower surface, a left surface, a right surface, a front surface and a rear surface, and the six surfaces are in transition; connecting; the left side of the main body is provided with a runner port, the right side of the main body is provided with a runner port, three runner ports are transversely arranged below the main body, a bulge is arranged on the front of the main body, a circular groove is arranged on the bulge, a shaft hole is arranged in the middle of the circular groove and penetrates through the front and the back of the main body, two arc grooves are oppositely arranged in the circular groove, the two arc grooves are respectively positioned at the upper side and the lower side of the shaft hole, the arc grooves at the lower side of the shaft hole are connected with a flow passage opening at the transverse middle part below the main body through a middle flow passage arranged in the main body, a sinking groove is arranged at the rear end of the shaft hole, two arc-shaped grooves are oppositely arranged on the back of the main body, the two arc-shaped grooves are respectively positioned on the left side and the right side of the sinking groove, the rear surface of the main body is also provided with a small circular groove which is positioned below the sinking groove, the rear surface of the main body is provided with a vertical groove, and the vertical groove sequentially penetrates through the centers of the sinking groove and the small circular groove; the runner port on the right side of the main body is connected with the runner port on the transverse right side below the main body through a right runner arranged in the main body, and the runner port on the left side of the main body is connected with the runner port on the transverse left side below the main body through a left runner arranged in the main body; the right runner and the left runner are symmetrical;
the middle flow channel comprises two vertical flow channels, one of the two vertical flow channels is arranged above the other, the upper end of the upper vertical flow channel is connected with the arc-shaped groove at the lower side of the shaft hole, the lower end of the upper vertical flow channel is connected with the upper end of the lower vertical flow channel through a transition flow channel, and the lower end of the lower vertical flow channel is correspondingly connected with a flow channel opening in the transverse middle below the main body;
the left side runner, the right side runner all include a horizontal runner, an arc runner and a perpendicular runner, and the arc runner is located the left side or the right side in shaft hole, encircles outside the shaft hole, and horizontal runner one end is connected to the arc runner interlude, and the horizontal runner other end corresponds the runner mouth on main part left side or the right side, and the runner mouth on horizontal left side or the right side below the corresponding connection main part of perpendicular runner lower extreme, and the perpendicular runner upper end is through the linkage segment that transition runner connects horizontal runner and arc runner.
2. A multi-functional hydraulic motor pump cover of claim 1, characterized by the hydraulic motor pump cover's parameter indices:
1) the material is as follows: QT 550-6;
2) tensile strength: more than or equal to 550 Mpa;
3) yield strength: 379 MPa;
4) hardness: HB 179-255;
5) the defects of slag inclusion, pores, shrinkage cavities and shrinkage porosity are avoided;
6) single weight: 30 kg.
3. The multifunctional hydraulic motor pump cover according to claim 1, wherein a sand core is placed inside a sand core mold, a cavity is formed between the sand core mold and the sand core, and molten iron is poured into the cavity to form the hydraulic motor pump cover; the sand core comprises a main core bar, a left core bar and a right core bar, wherein in the casting process, the main core bar forms a groove, a hole and a middle runner, the left core bar forms a left runner, and the right core bar forms a right runner.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021030434.3U CN212454795U (en) | 2020-06-08 | 2020-06-08 | Multifunctional hydraulic motor pump cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021030434.3U CN212454795U (en) | 2020-06-08 | 2020-06-08 | Multifunctional hydraulic motor pump cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212454795U true CN212454795U (en) | 2021-02-02 |
Family
ID=74492187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021030434.3U Withdrawn - After Issue CN212454795U (en) | 2020-06-08 | 2020-06-08 | Multifunctional hydraulic motor pump cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212454795U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561445A (en) * | 2020-06-08 | 2020-08-21 | 南通华东油压科技有限公司 | Multifunctional hydraulic motor pump cover and casting method thereof |
-
2020
- 2020-06-08 CN CN202021030434.3U patent/CN212454795U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111561445A (en) * | 2020-06-08 | 2020-08-21 | 南通华东油压科技有限公司 | Multifunctional hydraulic motor pump cover and casting method thereof |
| CN111561445B (en) * | 2020-06-08 | 2024-02-09 | 南通华东油压科技有限公司 | Multifunctional hydraulic motor pump cover and casting method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20210202 Effective date of abandoning: 20240209 |
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| AV01 | Patent right actively abandoned |
Granted publication date: 20210202 Effective date of abandoning: 20240209 |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |