CN210359142U

CN210359142U - Mould assembly for casting cylinder cover of oil extraction machine compressor

Info

Publication number: CN210359142U
Application number: CN201921027034.4U
Authority: CN
Inventors: 聂越; 刘兴隆
Original assignee: Tonglin Casting Industrial Co ltd
Current assignee: Tonglin Casting Industrial Co ltd
Priority date: 2019-07-03
Filing date: 2019-07-03
Publication date: 2020-04-21
Anticipated expiration: 2029-07-03

Abstract

The utility model discloses a mould assembly of casting oil production machine compressor cylinder head cover, including last mould, bed die, the outer eaves in bed die top is equipped with cyclic annular concave part, the bottom of going up the mould be equipped with the cyclic annular convex part of cyclic annular concave part adaptation, go up mould and bed die and pass through cyclic annular concave part and cyclic annular convex part fixed connection, be equipped with the die cavity in the bed die, the inside wall of bed die still is equipped with a plurality of wedge lugs, the wedge lug is located the die cavity bottom side. The utility model aims to provide a: the die assembly is characterized in that the wedge-shaped convex block is composed of a plurality of irregular wedge-shaped convex parts and is used for being matched with the irregular wedge-shaped shape of the cylinder head cover of the oil extraction machine compressor, so that the precision of the product size is improved, and the rejection rate of the cylinder head cover of the oil extraction machine compressor is reduced.

Description

Mould assembly for casting cylinder cover of oil extraction machine compressor

Technical Field

The utility model relates to a mould assembly of casting oil recovery machine compressor cylinder head cover 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 cylinder cover of the oil extraction machine compressor is a part 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 oil extraction machine compressor cylinder cover has higher requirements on the material of the compressor cylinder cover. 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 precise and difficult-to-shift mold assembly in the casting process of the cylinder head cover of the oil extraction machine compressor, so as to avoid the occurrence of artificial defects in the manufacturing process, reduce the machining amount of machining, and ensure that the relevant dimensions of the cylinder head cover of the compressor meet the requirements.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a: the die assembly is characterized in that the wedge-shaped convex block is composed of a plurality of irregular wedge-shaped convex parts and is used for being matched with the irregular wedge-shaped shape of the cylinder head cover of the oil extraction machine compressor, so that the precision of the product size is improved, and the rejection rate of the cylinder head cover of the oil extraction machine compressor is reduced.

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

the utility model provides a mould assembly of casting oil production machine compressor cylinder head cover, includes mould, bed die, the eave is equipped with cyclic annular concave part outside the bed die top, the bottom of going up the mould be equipped with the cyclic annular convex part of cyclic annular concave part adaptation, go up mould and bed die and pass through cyclic annular concave part and cyclic annular convex part fixed connection, be equipped with the die cavity in the bed die, the inside wall of bed die still is equipped with a plurality of wedge lugs, the wedge lug is located the die cavity bottom side. The design of annular concave part and annular convex part makes the face of connecting of last mould and bed die not only plane contact, and above-mentioned design, the fixed effect of last mould and bed die is better, and simultaneously for annular design, annular convex part surrounds annular concave part, and laminates each other, goes up the difficult aversion of mould or bed die, avoids its follow-up casting effect not good. The wedge-shaped convex block is designed to be matched with the shape of the oil extraction machine compressor cylinder cover, the oil extraction machine compressor cylinder cover generally has an irregular recess which is matched with the convex block on the outer wall of the oil extraction machine compressor cylinder cover, so that the irregular wedge-shaped recess needs to be cast when the compressor cylinder cover is cast, the size and the shape of the cavity are matched with those of the compressor cylinder cover, and further, the shape and the size of the wedge-shaped groove of the compressor cylinder cover are consistent with those of the wedge-shaped convex block in the cavity.

Further, the cavity is matched with the shape and the size of the cylinder cover of the oil extraction machine compressor. The utility model provides a casting mould of mould subassembly for preparing oil recovery machine compressor cylinder head cover, oil recovery machine compressor cylinder head cover 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.

Further, each wedge-shaped projection comprises a plurality of irregular wedge-shaped protrusions, and the plurality of wedge-shaped protrusions are connected with each other. The wedge lug can comprise a plurality of wedge convex parts, a plurality of wedge convex parts can set up certain bent angle in the junction for the discoid compressor cylinder head cover of adaptation, be dispersion form setting with the axle center of compressor cylinder head cover, make a plurality of wedge convex parts distribute in the die cavity with the shape adaptation of compressor cylinder head cover, and simultaneously, adjacent wedge convex part only has the part to be connected, for the shape of the concrete compressor cylinder head cover of adaptation, and then the wedge lug and the perfect adaptation of oil extraction machine compressor cylinder head cover of a plurality of wedge convex parts intercommunication.

Further, the lateral wall of going up mould and bed die all is equipped with multiunit screw rod groove, goes up the screw rod groove of mould and the screw rod groove intercommunication of bed die. The screw rod groove axial is perpendicular with the connection face of last mould and bed die, and the screw rod groove is located the lateral wall of mould and bed die and communicates each other, arranges the screw rod in the screw rod groove in the use, will go up mould and bed die fixed connection, prevents to go up mould and bed die and shifts each other for the foundry goods warp. The fixed connection mode in screw rod groove improves the connection stability of last mould and bed die, improves the foundry goods precision, reduces the rejection rate of foundry goods.

Furthermore, the upper die and the lower die are provided with at least four groups of screw grooves. The four groups of screw grooves are divided into two groups and are arranged on any opposite surface of the upper die and the lower die.

Furthermore, the upper die and the lower die are made of manual resin sand.

Further, the cavity material is an aluminum alloy ZL 102.

The utility model has the advantages that:

(1) the utility model discloses the design of well wedge lug and multiunit wedge convex part has solved among the prior art mould subassembly and has lacked the problem that is applicable to preparation oil recovery machine compressor cylinder head cover, and the mode of multiunit wedge concave part interconnect for holistic wedge lug can present certain radian and the discoid appearance adaptation of compressor cylinder head cover, and then die cavity and oil recovery machine compressor cylinder head cover shape and size adaptation, produce the high mould subassembly that just is directed against oil recovery machine compressor cylinder head cover of accuracy;

(2) the utility model discloses the design of well screw rod groove, with upper die and bed die fixed connection, prevent that upper die and bed die shift each other for the foundry goods warp, the fixed connection mode of screw rod groove improves the connection stability of upper die and bed die, improves the foundry goods precision, reduces the rejection rate of foundry goods;

(3) the utility model discloses a design perfect adaptation oil production machine compressor cylinder head cover, the perfect laminating of wedge lug design in compressor cylinder head cover outer wall, 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 being used.

Drawings

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

FIG. 2 is a view A-A of FIG. 1;

in the figure: 1-upper mold, 2-lower mold, 3-annular concave part, 4-annular convex part, 5-cavity, 6-wedge-shaped convex part, 7-wedge-shaped convex part, 8-screw groove, 9-casting system and 10-round convex part.

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

1-2, the shaded part of the figure is a casting which is consistent with the shape and the size of a cavity 5, so that the position of the casting corresponding to the figure is the position of the cavity 5. The mould assembly comprises an upper mould 1 and a lower mould 2, an annular concave part 3 is arranged at the top outer brim of the lower mould 2, an annular convex part 4 matched with the annular concave part 3 is arranged at the bottom of the upper mould 1, the upper mould 1 and the lower mould 2 are fixedly connected through the annular concave part 3 and the annular convex part 4, a cavity 5 is arranged in the lower mould 2, a plurality of wedge-shaped convex blocks 6 are further arranged on the inner side wall of the lower mould 2, and the wedge-shaped convex blocks 6 are positioned at the bottom side of the cavity 5. The design of annular concave part 3 and annular convex part 4 makes the face of connecting of last mould 1 and bed die 2 not only plane contact, and above-mentioned design, the fixed effect of going up mould 1 and bed die 2 is better, and simultaneously for annular design, annular convex part 4 surrounds annular concave part 3, and laminates each other, goes up mould 1 or bed die 2 and is difficult for shifting, avoids its follow-up casting effect not good. The design of the wedge-shaped convex block 6 is matched with the shape and the size of the cylinder head cover of the oil extraction machine compressor, and the cavity 5 is matched with the shape and the size of the cylinder head cover of the oil extraction machine compressor.

The working principle is as follows: the utility model provides a mould subassembly is the casting mould of preparation oil production machine compressor cylinder head cover, and oil production machine compressor cylinder head cover does the utility model discloses a foundry goods of mould subassembly casting, cavity 5 in foundry goods and the mould subassembly is structure and size adaptation, and metallic solution gets into the inside cavity 5 of mould subassembly via the gating system 9 of mould subassembly, and metallic solution cooling shaping back is obtained the foundry goods, and the design of wedge lug 6 is unanimous with the wedge recess shape size on the oil production machine compressor cylinder head cover in this scheme. The wedge-shaped convex block 6 is designed to be matched with the shape of the oil extraction machine compressor cylinder cover, the oil extraction machine compressor cylinder cover generally has an irregular recess, the recess is matched with the convex block on the outer wall of the oil extraction machine compressor cylinder cover, so that the irregular wedge-shaped recess needs to be cast when the compressor cylinder cover is cast, the cavity 5 is matched with the size and shape of the compressor cylinder cover, further, the shape and the size of the wedge-shaped groove on the compressor cylinder cover are consistent with those of the wedge-shaped convex block 6 in the cavity 5, and the wedge-shaped convex blocks are at least two groups.

The process is suitable for a product ZGMVA-11-1B (Cover round cylinder Cover blank); shrinkage rate of the casting: 10 percent; the sand content not injected is more than 30 mm; a manual modeling mode; the upper die 1 and the lower die 2 are made of manual resin sand; the material ZL102 of the cavity 5; the pouring temperature is 1360-; the sand-iron ratio is 3.3: 1, the yield is 75%; the upper die 1 and the lower die 2 are provided with manual carrying handles, and the sand-eating quantity cannot be lower than 30 mm; the partial process gradient is based on the following principle: the size of the die is less than 19mm, and the inclination of the drawing slope is 3 degrees; the draft angle of the 19-127 mm drawing die is 1.5 degrees, and the draft angle of the drawing die larger than 127mm is 1 degree.

Example 2

Each wedge-shaped projection 6 comprises a plurality of irregular wedge-shaped protrusions 7, the plurality of wedge-shaped protrusions 7 being interconnected. Wedge lug 6 can comprise a plurality of wedge convex parts 7, a plurality of wedge convex parts 7 can set up certain bent angle in the junction, be used for the discoid compressor cylinder cap cover of adaptation, be the setting of dispersed form with the axle center of compressor cylinder cap cover, make a plurality of wedge convex parts 7 distribute in die cavity 5 with the shape adaptation of compressor cylinder cap cover, and simultaneously, adjacent wedge convex part 7 only partly connects, be used for the irregular shape of the concrete compressor cylinder cap cover of adaptation, and then connect the wedge lug 6 and the perfect adaptation of oil recovery machine compressor cylinder cap cover that constitute by a plurality of wedge convex parts 7. The bottom side of the lower die 2 is further provided with a circular bump 10, and the wedge-shaped bumps 6 are distributed along the outer periphery of the circular bump 10. The circular lug 10 is matched with the shape and the size of the cylinder head cover of the oil extraction machine compressor.

Example 3

Go up the lateral wall of mould 1 and bed die 2 and all be equipped with multiunit screw rod groove 8, go up the screw rod groove 8 of mould 1 and the screw rod groove 8 intercommunication of bed die 2. The screw rod groove 8 axial is perpendicular with the face of being connected of last mould 1 and bed die 2, and screw rod groove 8 is located the lateral wall of mould 1 and bed die 2 and communicates each other, arranges the screw rod in screw rod groove 8 in the use, will go up mould 1 and bed die 2 fixed connection, prevents to go up mould 1 and bed die 2 and shift each other for the foundry goods is out of shape. The fixed connection mode of screw rod groove 8 improves the connection stability of mould 1 and bed die 2, improves the foundry goods precision, reduces the rejection rate of foundry goods.

Example 4

And the upper die 1 and the lower die 2 are provided with at least four groups of screw grooves 8. The four groups of screw grooves 8 are divided into two groups and are arranged on any opposite surface of the upper die 1 and the lower die 2.

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

1. The utility model provides a mould subassembly of casting oil production machine compressor cylinder head cover, its characterized in that, includes mould (1), bed die (2), the outer eaves in bed die (2) top is equipped with cyclic annular concave part (3), the bottom of going up mould (1) be equipped with cyclic annular convex part (4) of cyclic annular concave part (3) adaptation, go up mould (1) and bed die (2) through cyclic annular concave part (3) and cyclic annular convex part (4) fixed connection, be equipped with die cavity (5) in bed die (2), the inside wall of bed die (2) still is equipped with a plurality of wedge lugs (6), wedge lug (6) are located die cavity (5) bottom side.

2. A mould assembly for casting a cover hood for a diesel engine compressor according to claim 1, characterised in that the mould cavity (5) is adapted to the shape and dimensions of the cover hood.

3. A cast diesel engine compressor head cover mould assembly according to claim 1, characterised in that each wedge-shaped projection (6) comprises a plurality of irregular wedge-shaped protrusions (7), the plurality of wedge-shaped protrusions (7) being interconnected.

4. The die assembly for casting the cylinder head cover of the oil extraction machine compressor according to the claim 1, characterized in that the side walls of the upper die (1) and the lower die (2) are provided with a plurality of sets of screw grooves (8), and the screw grooves (8) of the upper die (1) and the screw grooves (8) of the lower die (2) are communicated.

5. A mould assembly for casting a cover hood for a compressor of an oil extraction machine according to claim 1, characterized in that the upper mould (1) and the lower mould (2) are each provided with at least four sets of screw grooves (8).

6. A mould assembly for casting a cover hood for a compressor of an oil extraction machine according to claim 1, characterized in that the material of the upper mould (1) and the lower mould (2) is hand-made resin sand.

7. The mold assembly for casting a cylinder head cover of an oil extraction machine compressor according to claim 1, characterized in that the material of the cavity (5) is an aluminum alloy ZL 102.