CN210359127U - Cylinder cover die of oil extraction machine compressor - Google Patents

Abstract

The utility model discloses a cylinder cover mould of an oil extraction machine compressor, which comprises a mould component and a casting system positioned in the mould component; the die assembly comprises an upper die, a lower die and an inner sand core, the inner sand core is fixedly connected to the bottom end of the upper die, a cavity with an opening at the top is formed in the lower die, and the inner sand core is arranged in the cavity; the pouring system comprises a Y-shaped test block pouring channel communicated with the cavity, and a straight cylinder channel, an arc-shaped pouring channel and an inner pouring channel which are sequentially communicated; inside straight section of thick bamboo way upper die and bed die, the arc is watered the level and is placed upper die and bed die link in and the straight section of thick bamboo way of perpendicular to, ingate one end and communicate in the arc and water, the other end communicates in the die cavity. The utility model aims to provide a: the cylinder cover die of the oil extraction machine compressor not only improves the precision of the product size, but also is convenient for directly detecting the casting quality and reducing the rejection rate of the cylinder cover of the oil extraction machine compressor through the design of the Y-shaped test block.

Description

Cylinder cover die of oil extraction machine compressor

Technical Field

The utility model relates to a cylinder cap mould of oil production machine compressor belongs to sand casting mould field.

Background

The casting is a manufacturing process of pouring molten metal into a casting mold, and cooling and solidifying to obtain a part with required shape and performance. Casting is a common manufacturing method, has low manufacturing cost and great process flexibility, can obtain castings with complex shapes and large sizes, and has great specific gravity in mechanical manufacturing. Sand casting refers to a casting process that produces a casting in a sand mold. Steel, iron and most nonferrous metal castings can be obtained by sand casting. The molding material used for sand casting is cheap and easy to obtain, the casting mould is simple and convenient to manufacture, and the casting mould can adapt to single-piece production, batch production and mass production of castings, and is a basic process in casting production for a long time.

The pouring system is used for controlling the speed of filling the casting mold with the molten metal and the time required for filling the casting mold; the molten metal can enter the casting mold stably, and turbulence and washing on the casting mold are avoided; preventing slag and other inclusions from entering the die cavity; gas is not involved during pouring, the casting is made to accord with the principle of sequential solidification as far as possible during cooling, and different pouring systems are designed according to the specific shape of the casting when the castings with different structures are poured.

The cylinder cover of the oil extraction machine compressor is a partial component of the oil extraction machine compressor, and different oil extraction machines have different oil extraction machine compressors, so that the stress condition of the oil extraction machine compressor in the use process is complex according to the principle of the oil extraction machine, and the oil extraction machine compressor needs to have sufficient strength, rigidity, wear resistance and vibration resistance, so that the cylinder cover of the compressor has higher requirements on the material of the cylinder cover of the compressor. The cylinder cover of the oil extraction machine compressor is made of common cast iron, alloy cast iron, aluminum alloy and the like.

Therefore, it is required to adopt a relatively accurate mold assembly and a pouring system thereof, which are convenient for detecting the quality of a casting in the casting process of the cylinder cover of the oil extraction machine compressor, so as to avoid artificial defects in the manufacturing process, reduce the machining amount of machining, and ensure that all relevant dimensions of the cylinder cover of the compressor meet requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the defects in the prior art are overcome, the accuracy of the size of the casting is improved, the quality of the casting is convenient to directly detect through the design of the Y-shaped test block, the rejection rate of the cylinder cover of the oil extraction machine compressor is reduced, the yield is higher, the working efficiency is improved, the sand-iron ratio is reduced, and the manufacturing cost is reduced.

In order to realize the above purpose, the utility model discloses a technical scheme:

a cylinder cover mould of an oil extraction machine compressor comprises a mould component and a pouring system positioned in the mould component;

the die assembly comprises an upper die, a lower die and an inner sand core, the inner sand core is fixedly connected to the bottom end of the upper die, a cavity with an opening at the top is formed in the lower die, and the inner sand core is arranged in the cavity;

the pouring system comprises a Y-shaped test block pouring channel communicated with the cavity, and a straight cylinder channel, an arc-shaped pouring channel and an inner pouring channel which are sequentially communicated; the straight cylinder way is positioned inside the upper die and the lower die, the arc-shaped pouring channel is communicated with the bottom of the straight cylinder way, one end of the inner pouring channel is communicated with the arc-shaped pouring channel, and the other end of the inner pouring channel is communicated with the die cavity. The straight cylinder way is vertically arranged inside the die assembly and is perpendicular to the contact surface of the upper die and the lower die, and the arc-shaped pouring gate is horizontally arranged between the upper die and the lower die.

Furthermore, the shape and the size of the cavity are matched with those of a cylinder cover of a compressor of the oil extraction machine. The utility model provides a casting mould of mould subassembly for preparing the oil production machine compressor cylinder cap, the oil production machine compressor cylinder cap does the utility model discloses a foundry goods of mould subassembly casting, die cavity in foundry goods and the mould subassembly are structure and size adaptation, and metallic solution gets into the inside die cavity of mould subassembly via the gating system of mould subassembly, obtains the foundry goods after the shaping. The die cavity in the mould that says so is the cavity that upper die and bed die constitute jointly herein, specific saying so, and the space that the interior psammitolite that is exactly the upper die constitutes in the die cavity of bed die, the technical scheme of the utility model be with interior psammitolite directly set up in the bottom of upper die, go up mould and interior psammitolite formula structure as an organic whole, go up mould and bed die fixed connection back, interior psammitolite is arranged in the die cavity, and then constitutes a hollow cavity, and its shape and size are unanimous with oil extraction machine compressor cylinder cap.

Further, the gating system further comprises a pouring gate and a riser, wherein the pouring gate is located at the top end of the upper die and communicated with the straight cylinder channel, and the riser is located at the top of the upper die and communicated with the cavity. The metal solution gets into the mould from the runner, and the arc that gets into mould and bed die junction is watered along straight section of thick bamboo way, and the metal solution continues to flow along the arc is watered, and from the ingate entering die cavity of dispersion on the arc is watered, and the metal solution is followed supreme filling gradually die cavity down, overflows to the riser department that is located the mould top at last, accomplishes the pouring process. Y type test block is watered and is used for detecting whether qualified replacement of foundry goods performance detects the structure, the foundry goods in-process, Y type test block is watered the design and is made partial metallic solution can here cast moulding, and then operating personnel can obtain the performance of the foundry goods of pouring simultaneously with it through the performance that detects Y type test block, the quality of the operating personnel of being convenient for or customer detection foundry goods improves work efficiency, and Y type test block is dismantled in the foundry goods relatively, does not influence the normal use of foundry goods.

The metal solution gets into the mould from the runner, and the arc that gets into mould and bed die junction is watered along straight section of thick bamboo way, and the metal solution continues to flow along the arc is watered, and from the ingate entering die cavity of dispersion on the arc is watered, and the metal solution is followed supreme filling gradually die cavity down, overflows to the riser department that is located the mould top at last, accomplishes the pouring process. The arc-shaped pouring gate is positioned between the upper die and the lower die.

Furthermore, the arc-shaped pouring gate forms a 90-degree radian along the outer side of the cavity. The arc is watered and is 90 contained angles to the die cavity bending, and then the metallic solution flows along the arc is watered, and the arc is watered and is compared in the design of right angle form, gives metallic solution the space that has certain buffering corner, and the metallic solution of being convenient for flows steadily and fills the type.

Furthermore, the end of the arc-shaped pouring gate is provided with a rectangular port, and the top side wall of the arc-shaped pouring gate close to the rectangular port and the axial included angle of the arc-shaped pouring gate are 15 degrees. The pipe diameter of rectangle port is greater than the arc and waters, and above-mentioned contained angle if too big leads to the metallic solution to flow unsmoothly, influences the foundry goods effect, and above-mentioned contained angle if the undersize leads to the metallic solution, and the metallic solution consumption is too big, increases the foundry goods cost.

Further, the section of the arc-shaped pouring channel perpendicular to the axial direction is 40mmX35 mm. Under the condition of ensuring the flow rate to be consistent, the height of the tangent plane is not too high, otherwise, the surface area of a pouring gate is too large, the heat dissipation is too fast, the temperature of the metal solution is too fast, and the fluidity of the metal solution is influenced.

Furthermore, the ingate is in a plurality of groups, and two ends of the ingate are respectively communicated with the arc-shaped channel and the cavity. One set of ingates is adjacent to the rectangular port. The design of watering in the multiunit makes the interior metallic solution of arc watering be convenient for the reposition of redundant personnel, and the more quick sufficient die cavity of pouring in-process metallic solution flow time overlength leads to the cooling too fast, and the yield of product is not good.

Furthermore, the risers are the multiunit, distribute in last mould inside with the die cavity intercommunication. The design of a plurality of risers is convenient for operators to directly observe whether the metal solution is filled in the top of the cavity or not from the top of the die assembly, the risers are positioned on the top of the upper die, and the cylinder cover of the oil extraction machine compressor is columnar, so that when the metal solution is filled in the plurality of sets of risers and is in an overflowing state, the highest point of the cavity is full, the whole cavity is full, and the metal solution filling process of the casting process is realized.

Furthermore, a filter plate is arranged at the communicating position of the straight cylinder channel and the arc-shaped pouring channel. The setting of filter is arranged in filtering other impurity in the metallic solution, avoids influencing later stage foundry goods quality.

Furthermore, the bottom of the upper die is fixedly connected with the top of the lower die through an inner box conical seat.

Furthermore, the product adopts a sand frame molding mode; all the casting systems are chamfered, and the positions of the filter pieces are not chamfered; the partial process gradient is based on the following principle: the size of the die is less than 19mm, the draft angle of the die is 2 degrees, the draft angle of the die is 1 degree between 19mm and 127mm, the draft angle of the die is 0.5 degree between 127mm and the die, the upper die structure and the lower die structure are steel frame and template, the material of the die is Korean pine, and the material of a riser, a straight cylinder way and a character-casting is aluminum; the sand content not injected is more than 30 mm; the shrinkage of the casting is 10%; the pouring temperature is 1310 +/-10 ℃, and the pouring time is 33 s; 1645Kg of blank, 22.5Kg of test block, 87.0Kg of casting cap, 274(251.5) Kg of casting weight, 65.4% of process yield; 1205.8Kg of upper die, 2266.7 Kg of lower die, sand-iron ratio: 2.87: 1. the utility model discloses cast oil production machine compressor cylinder cap mould compares in its yield of prior art higher, improves work efficiency, reduces sand iron ratio, reduces manufacturing cost.

The utility model has the advantages that:

(1) the utility model discloses the design of well Y type test block for detect whether qualified replacement of foundry goods performance detects the structure, operating personnel can obtain the performance of the foundry goods of pouring simultaneously with it through detecting the performance of Y type test block, be convenient for operating personnel or customer to detect the quality of foundry goods, improve work efficiency, and Y type test block is dismantled compared with the foundry goods, does not influence the normal use of foundry goods;

(2) the design of the middle arc-shaped pouring gate of the utility model provides a space with a certain buffering corner for the metal solution, which is convenient for the metal solution to flow and fill stably, ensures the smooth flow of the metal solution, and avoids the accidental situations of metal solution backflow or advanced cooling, etc.;

(3) the included angle between the top side wall of the arc-shaped pouring gate close to the rectangular port and the axial direction of the arc-shaped pouring gate is 15 degrees, the angle design can ensure that the use efficiency of the metal solution is optimized, the casting quality is ensured, and the economic benefit is improved;

(4) the utility model discloses in the ingate be provided with the multiunit, guarantee that metal solution evenly gets into the die cavity, improve the efficiency and the quality that metal solution filled the type, the rising head is designed into multiunit and is convenient for survey the filled type effect of die cavity many places simultaneously, improves work efficiency;

(5) the utility model discloses a gating system improves the casting success rate of foundry goods according to the size and the shape special design of oil production machine compressor cylinder cap, improves work efficiency, reduces manufacturing cost, and the mould subassembly structure is succinct, and the installation is simple, and the security is high, and stability is good, and suitable the popularization is suitable for.

Drawings

Fig. 1 is a top perspective view of the present invention;

fig. 2 is a cross-sectional view of the present invention;

FIG. 3 is a view A-A of FIG. 1;

FIG. 4 is a view B-B of FIG. 1;

FIG. 5 is a view C-C of FIG. 1;

FIG. 6 is a schematic structural view of the inner box cone base of the present invention;

in the figure: 1-upper die, 2-lower die, 3-internal sand core, 4-cavity, 5-internal box conical seat, 6-pouring gate, 7-straight cylinder channel, 8-arc pouring gate, 9-internal pouring gate, 10-riser, 11-Y type test block pouring gate, 12-rectangular port and 13-filtering plate.

Detailed Description

The drawings in the embodiments of the present invention will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the present invention; but not all embodiments, are based on the embodiments of the invention; all other embodiments obtained by a person skilled in the art without making any inventive step; all belong to the protection scope of the utility model.

In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example 1

A cylinder head mould 1 of an oil extraction machine compressor, as shown in fig. 1-6, comprises a mould assembly and a pouring system positioned inside the mould assembly;

the mould assembly comprises an upper mould 1, a lower mould 2 and an inner sand core 3, wherein the bottom of the upper mould 1 is fixedly connected with the top of the lower mould 2 through an inner box conical seat 5; the inner sand core 3 is fixedly connected to the bottom end of the upper die 1, a cavity 4 with an opening at the top is arranged in the lower die 2, and the inner sand core 3 is arranged in the cavity 4;

the pouring system comprises a Y-shaped test block pouring channel 11 communicated with the cavity 4, and a straight cylinder channel 7, an arc-shaped pouring channel 8 and an inner pouring channel 9 which are sequentially communicated; the straight cylinder channel 7 is arranged inside the upper die 1 and the lower die 2, the arc-shaped pouring gate 8 is communicated with the bottom of the straight cylinder channel 7 and is vertical to the straight cylinder channel 7, one end of the inner pouring gate 9 is communicated with the arc-shaped pouring gate 8, and the other end of the inner pouring gate is communicated with the cavity 4; the straight cylinder channel 7 is vertically arranged inside the die assembly and is perpendicular to the contact surface of the upper die 1 and the lower die 2, and the arc-shaped pouring gate 8 is horizontally arranged between the upper die 1 and the lower die 2.

The shape and the size of the cavity 4 are matched with those of a cylinder cover of a compressor of the oil extraction machine.

The pouring system further comprises a pouring gate 6 and a riser 10, the pouring gate 6 is located at the top end of the upper die 1 and communicated with the straight cylindrical channel 7, and the riser 10 is located at the top of the upper die 1 and communicated with the cavity 4.

The working principle is as follows: the utility model provides a casting mould of mould subassembly for preparing the oil production machine compressor cylinder cap, the oil production machine compressor cylinder cap does the utility model discloses a foundry goods of mould subassembly casting, die cavity 4 in foundry goods and the mould subassembly are structure and size adaptation, and metallic solution gets into the inside die cavity 4 of mould subassembly via the gating system of mould subassembly, obtains the foundry goods after the shaping. Cavity 4 in the mould that says so is the cavity that upper die 1 and lower mould 2 constitute jointly for this article, specific saying so, is exactly the space that the interior psammitolite 3 of upper die 1 constitutes in cavity 4 of lower mould 2, the technical scheme of the utility model is that directly set up interior psammitolite 3 in the bottom of upper die 1, upper die 1 and interior psammitolite 3 formula structure as an organic whole, after upper die 1 and lower mould 2 fixed connection, interior psammitolite 3 is arranged in cavity 4, and then constitutes a hollow cavity, and its shape and size are unanimous with oil production machine compressor cylinder cap.

The metal solution enters the upper die 1 from the pouring gate 6, enters the arc-shaped pouring gate 8 at the joint of the upper die 1 and the lower die 2 along the straight cylinder passage 7, continues to flow along the arc-shaped pouring gate 8, enters the cavity 4 from the ingate 9 dispersed on the arc-shaped pouring gate 8, gradually fills the cavity 4 from bottom to top, and finally overflows to the riser 10 positioned at the top of the upper die 1 to finish the pouring process. An arc runner 8 is located between the upper mold 1 and the lower mold 2.

Y type test block waters 11 and is used for detecting whether qualified replacement of foundry goods performance detects the structure, the foundry goods in-process, Y type test block waters 11 design and makes partial metallic solution can be here casting moulding, and then operating personnel can obtain the performance of the foundry goods of pouring simultaneously with it through the performance that detects Y type test block, the operating personnel of being convenient for or customer detect the quality of foundry goods, improve work efficiency, and Y type test block is compared in the foundry goods and is dismantled, does not influence the normal use of foundry goods.

Example 2

The arc-shaped pouring gate 8 forms a 90-degree radian along the outer side of the cavity 4. The arc is watered 8 and is 90 contained angles to the crooked mould cavity 4, and then the molten metal is watered 8 flows along the arc, and the arc is watered 8 and is compared in the design of right angle form, gives the molten metal the space that has certain buffering corner, and the molten metal of being convenient for flows steadily and fills the type.

Example 3

The tail end of the arc-shaped pouring gate 8 is provided with a rectangular port 12 with a pipe diameter larger than that of the arc-shaped pouring gate 8, and the top side wall of the arc-shaped pouring gate 8 close to the rectangular port 12 forms an axial included angle with the arc-shaped pouring gate 8 of 15 degrees. If the included angle is too large, the metal solution flows unsmoothly, the casting effect is influenced, if the included angle is too small, the metal solution is consumed too much, and the casting cost is increased.

Example 4

The section of the arc-shaped pouring gate 8 perpendicular to the axial direction is 40mmX35 mm. Under the condition of ensuring the flow rate to be consistent, the height of the tangent plane is not too high, otherwise, the surface area of a pouring gate is too large, the heat dissipation is too fast, the temperature of the metal solution is too fast, and the fluidity of the metal solution is influenced.

Example 5

The ingate 9 is divided into a plurality of groups, and two ends of the ingate 9 are respectively communicated with the arc-shaped ingate 8 and the cavity 4. With one set of ingates 9 being adjacent to the rectangular port 12. The design of multiunit ingate 9 makes the metallic solution of arc in the water 8 of watering be convenient for shunt, and very quick abundant die cavity 4 avoids pouring in-process metallic solution flow time overlength to lead to the cooling too fast, and the yield of product is not good.

Example 6

The risers 10 are distributed in the upper die 1 and communicated with the cavity 4. The design of the multiple risers 10 is convenient for operators to directly observe whether the metal solution is filled in the top of the cavity 4 or not from the top of the mould assembly, the risers 10 are positioned at the top of the upper mould 1, and as the cylinder cover of the compressor of the oil extraction machine is columnar, when the multiple sets of risers 10 are filled with the metal solution in an overflowing shape, the highest point of the cavity 4 is full, so that the whole cavity 4 is full, and the metal solution filling process of the casting process is realized.

Example 7

And a filter plate 13 is arranged at the communication position of the straight cylinder passage 7 and the arc-shaped pouring gate 8. The setting of filter 13 is arranged in filtering other impurity in the metallic solution, avoids influencing later stage foundry goods quality.

The product adopts a sand frame molding mode, namely a long-time-guarantee sand box 836X662 height 300/264; all the casting systems are chamfered, and the positions of the filter pieces are not chamfered; the partial process gradient is based on the following principle: the size of the mould is less than 19mm, the draft angle of the mould is 2 degrees, the draft angle of the mould is 1 degree between 19mm and 127mm, the draft angle of the mould is 0.5 degree between 127mm and the draft angle of the mould is 0.5 degree, the upper mould structure and the lower mould structure are steel frame and template, the material of the mould is Korean pine, and the riser 10, the straight cylinder channel 7 and the material of the typecasting are aluminum; the sand content not injected is more than 30 mm; the shrinkage of the casting is 10%; the pouring temperature is 1310 +/-10 ℃, and the pouring time is 33 s; 1645Kg of blank, 22.5Kg of test block, 87.0Kg of casting cap, 274(251.5) Kg of casting weight, 65.4% of process yield; 1205.8Kg of upper die, 2266.7 Kg of lower die, sand-iron ratio: 2.87: 1. the utility model discloses cast oil production machine compressor cylinder cap mould compares in its yield of prior art higher, improves work efficiency, reduces sand iron ratio, reduces manufacturing cost.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (10)

1. A cylinder cover mould of an oil extraction machine compressor is characterized by comprising a mould component and a pouring system positioned in the mould component;

the mould assembly comprises an upper mould (1) and a lower mould (2), wherein the bottom end of the upper mould (1) is fixedly connected with an inner sand core (3), a cavity (4) with an opening at the top is arranged in the lower mould (2), and the inner sand core (3) is arranged in the cavity (4);

the pouring system comprises a Y-shaped test block pouring gate (11) communicated with the cavity (4), and a straight cylinder channel (7), an arc-shaped pouring gate (8) and an inner pouring gate (9) which are sequentially communicated; the straight cylinder way (7) is positioned inside the upper die (1) and the lower die (2), the arc-shaped pouring gate (8) is communicated with the bottom of the straight cylinder way (7), one end of the inner pouring gate (9) is communicated with the arc-shaped pouring gate (8), and the other end of the inner pouring gate is communicated with the cavity (4).

2. A cylinder head mould for a petroleum extraction machine compressor according to claim 1, characterized in that said cavity (4) is adapted to the shape and dimensions of the cylinder head of the petroleum extraction machine compressor.

3. The cylinder cover mould of the oil extraction machine compressor as claimed in claim 1, wherein the pouring system further comprises a pouring gate (6) and a riser (10), the pouring gate (6) is located at the top end of the upper mould (1) and is communicated with the straight cylinder passage (7), and the riser (10) is located at the top of the upper mould (1) and is communicated with the cavity (4).

4. A cylinder head mould for a petroleum extraction machine compressor according to claim 1, characterized in that said curved runner (8) presents a 90 ° arc along the outside of the moulding cavity (4).

5. A cylinder cover die of a petroleum extraction machine compressor according to claim 4, characterized in that the end of the arc-shaped pouring channel (8) is provided with a rectangular port (12), and the top side wall of the arc-shaped pouring channel (8) close to the rectangular port (12) forms an included angle of 15 degrees with the axial direction of the arc-shaped pouring channel (8).

6. A cylinder head mould for a petroleum extraction compressor according to claim 5, characterized in that the section of the curved runner (8) perpendicular to the axial direction is 40mmX35 mm.

7. A cylinder cover die of an oil extraction machine compressor according to claim 6, characterized in that the ingates (9) are in multiple groups, and two ends of the ingates (9) are respectively communicated with the arc-shaped pouring channel (8) and the cavity (4).

8. The cylinder cover mould of the oil extraction machine compressor as claimed in claim 3, wherein the risers (10) are distributed in the upper mould (1) and communicated with the cavity (4).

9. A cylinder cover die of an oil extraction machine compressor according to claim 1, characterized in that a filter plate (13) is arranged at the communication part of the straight cylinder channel (7) and the arc-shaped pouring channel (8).

10. A cylinder head die of an oil extraction machine compressor according to claim 1, characterized in that the bottom of the upper die (1) is fixedly connected with the top of the lower die (2) through an inner box conical seat (5).

Images