CN216138063U - Casting template of pump cover for wind power - Google Patents

Abstract

The application relates to the field of pump cover casting, in particular to a casting template of a pump cover for wind power, which comprises an upper template, a lower template and a mold core, wherein an upper forming part is integrally arranged on the upper template, the upper forming part is provided with an upper forming part, a lower forming part is integrally arranged on the lower template, and the lower forming part comprises a lower forming part, a first auxiliary forming part and a second auxiliary forming part; the mold core comprises a core body, a first auxiliary core and a second auxiliary core, a first inserting column and two second inserting columns are convexly arranged on the peripheral surface of the core body, the first inserting column and the second inserting column are oppositely arranged, the inner side shapes of the first auxiliary core and the second auxiliary core are the same as the shapes of the peripheral surfaces of the corresponding pump covers, the outer side shape of the first auxiliary core is the same as the shape of the peripheral surface of the first auxiliary forming part, and the outer side shape of the second auxiliary core is the same as the shape of the peripheral surface of the second auxiliary forming part. This application has reached the foundry goods and can cast fashioned effect smoothly.

Description

Casting template of pump cover for wind power

Technical Field

The application relates to the field of pump cover casting, in particular to a casting template of a pump cover for wind power.

Background

In the casting forming process, the casting template is an indispensable article, the template is generally divided into two parts, namely an upper template and a lower template, a forming part which is the same as the appearance of the casting is arranged on the upper template and the lower template, the upper template and the lower template are utilized to form an upper template and a lower template respectively, then the upper template and the lower template are assembled, molten iron pouring is carried out, and the casting forming is completed.

For the pump cover for wind power shown in fig. 1 and 2, the pump cover for wind power includes a disk body 11 and a cylinder 12, the disk body 11 is integrally connected to the outer side of the end portion of the cylinder 12, a functional groove 121 is formed on the side wall of the cylinder 12 in a protruding manner, a first through hole 122 is formed in the bottom of the functional groove 121, two second through holes 123 are further formed in the cylinder 12, and the second through holes 123 are located on the opposite side of the functional groove 121.

With respect to a casting having such a shape, it is difficult to directly form a cavity having the same shape as the casting by using the upper and lower die plates during the casting because it is difficult to directly form a cavity having the same shape as the casting at the positions of the functional groove 121, the first through hole 122 and the second through hole 123 when the lower and upper die plates use the forming portion having the same shape as the external shape of the casting, and thus there is a difficulty in the casting.

SUMMERY OF THE UTILITY MODEL

In order to solve the difficult problem of pump cover shaping for wind-powered electricity generation, the purpose of this application provides a cast profile plate of pump cover for wind-powered electricity generation.

The application provides a pair of cast template of pump cover for wind-powered electricity generation adopts following technical scheme:

a casting template of a pump cover for wind power comprises an upper template, a lower template and a core, wherein an upper forming part is integrally arranged on the upper template, the upper forming part is provided with an upper forming body with the same shape as the outer surface of the upper half part of the pump cover, a lower forming part is integrally arranged on the lower template, the lower forming part comprises a lower forming body, a first auxiliary forming part and a second auxiliary forming part, the lower forming body is the same shape as the outer surface of the lower half part of the pump cover, the first auxiliary forming part and the second auxiliary forming part are integrally connected to the outer peripheral surface of the lower forming body, and the first auxiliary forming part and the second auxiliary forming part are symmetrically arranged on the outer peripheral surface of the lower forming body; the mold core comprises a core body, a first auxiliary core and a second auxiliary core, a first inserting column and two second inserting columns are convexly arranged on the peripheral surface of the core body, the first inserting column and the second inserting column are oppositely arranged, the inner side shapes of the first auxiliary core and the second auxiliary core are the same as the shape of the peripheral surface of a corresponding pump cover, the outer side shape of the first auxiliary core is the same as the shape of the peripheral surface of the first auxiliary forming part, and the outer side shape of the second auxiliary core is the same as the shape of the peripheral surface of the second auxiliary forming part.

Through adopting above-mentioned technical scheme, after utilizing lower template shaping lower bolster, can have the position the same with first supplementary shaping portion and the supplementary shaping portion shape of second in the die cavity of lower bolster, later put into first supplementary core and the supplementary core of second in corresponding die cavity position, reuse upper template shaping cope match-plate pattern, later put into the die cavity of lower bolster with the core, pour into after with cope match-plate pattern and lower bolster compound die at last, utilize first through-hole and the second through-hole on first post and the second post shaping foundry goods of inserting, utilize first supplementary core shaping function groove, thereby guarantee that the foundry goods can cast the shaping smoothly.

Preferably, the upper forming member further includes a first positioning portion integrally connected to a middle portion of an upper surface of the upper forming member and protruding out of the upper forming member, the upper end of the core body has a first inserting portion, and a shape of the first inserting portion is the same as a shape of the first positioning portion.

Through adopting above-mentioned technical scheme, after utilizing the shaping cope match-plate pattern of upper template, can form the position identical with first positioning portion appearance in the die cavity of cope match-plate pattern, just can insert the fashioned die cavity of first positioning portion with first grafting portion on the core this moment, realize the location of core in the die cavity.

Preferably, a plurality of chills are placed to the top of the upper shaping body, and a plurality of chills are evenly spaced along the circumferencial direction and are set up.

Through adopting above-mentioned technical scheme, at the in-process of shaping cope match-plate pattern, the chill can be buried in the molding sand of cope match-plate pattern, at the in-process of pouring molten iron, the chill can cool off the foundry goods at this position to promote the cooling rate at this position, thereby keep the cooling rate at each position of foundry goods roughly the same, reduce the possibility that produces the defect.

Preferably, the lower forming piece further comprises a second positioning part which is integrally connected to the middle position of the top of the lower forming body and protrudes out of the lower forming body, the lower end of the core body is provided with a second inserting part, and the shape of the second inserting part is the same as that of the second positioning part.

By adopting the technical scheme, after the lower template is molded by utilizing the lower template, the part with the same appearance as the second positioning part can be formed in the die cavity of the lower template, and at the moment, the second inserting part on the core body can be inserted into the die cavity molded by utilizing the second positioning part, so that the positioning of the core body in the die cavity is enhanced.

Preferably, the lower end faces of the first auxiliary forming part, the second auxiliary forming part and the second positioning part are all recessed downwards to form positioning grooves.

Through adopting above-mentioned technical scheme, after utilizing the lower template shaping lower bolster, have in the die cavity of lower bolster with first supplementary shaping portion, the same position of the positioning groove shape on second supplementary shaping portion and the second location portion, be convenient for fix a position after core, first supplementary core and the supplementary core of second are inserted in the die cavity, promote the installation accuracy of core, first supplementary core and the supplementary core of second.

Preferably, a pouring channel molding part, a first flow channel molding part, a second flow channel molding part and a third flow channel molding part which are sequentially communicated are convexly arranged above the upper shaping plate, and one end, far away from the second flow channel molding part, of the third flow channel molding part is integrally connected with the upper shaping body; and a communicating flow channel forming part is convexly arranged above the lower shaping plate, and the position of the communicating flow channel forming part corresponds to the position between the pouring channel forming part and the first flow channel forming part.

By adopting the technical scheme, after the upper template and the lower template are molded, the pouring channel molding part, the first runner molding part, the second runner molding part, the third runner molding part and the communicated runner molding part are utilized to mold the pouring channel, the first runner, the second runner, the third runner and the communicated runner, when the upper template and the lower template are assembled, poured molten iron can enter the first runner from the pouring channel, then enter the second runner and the third runner through the communicated runner and finally enter a cavity of a molded casting.

Preferably, the upper shaping plate is provided with four upper shaping bodies which are arranged in a quadrilateral shape, and the lower shaping plate is provided with four lower shaping bodies which are arranged in a quadrilateral shape.

Through adopting above-mentioned technical scheme, the shaping of foundry goods is four chambeies of a mould, and four foundry goods can be shaped in the pouring in proper order to promote the efficiency of production.

Preferably, the upper shaping plate is provided with a positioning hole, the lower shaping plate is provided with a positioning column in a protruding mode, and the positioning column and the positioning hole can be matched with each other and are located at positions corresponding to each other.

Through adopting above-mentioned technical scheme, after shaping cope match-plate pattern and lower bolster, utilize the fashioned template of locating hole and reference column to cooperate the location each other, promote the precision of compound die.

In summary, the present application has the following technical effects:

1. the first auxiliary forming part and the second auxiliary forming part are arranged on the lower template, and the core body, the first auxiliary core and the second auxiliary core are matched, so that a casting can be smoothly formed;

2. through setting up first location portion and first grafting portion, reached the purpose of location core, promoted the degree of accuracy of core location.

Drawings

Fig. 1 is a schematic three-dimensional structure diagram of the pump cover in the present embodiment.

Fig. 2 is a schematic cross-sectional structure diagram of the pump cover in the present embodiment.

Fig. 3 is a schematic structural view of the core in the present embodiment.

Fig. 4 is a schematic structural view of the upper board in this embodiment.

Fig. 5 is a schematic structural view of the lower plate in this embodiment.

Description of reference numerals: 11. a tray body; 12. a barrel; 121. a functional groove; 122. a first through hole; 123. a second through hole; 2. an upper template; 21. an upper forming member; 211. an upper molded body; 212. a first positioning portion; 213. performing cold iron; 22. a sprue channel molding section; 23. a first flow channel molding section; 24. a second flow channel forming section; 25. a third flow channel molding section; 26. positioning holes; 3. a lower template; 31. a lower forming member; 311. a lower molded body; 312. a first auxiliary forming part; 313. a second auxiliary forming part; 314. a second positioning portion; 32. a communicating flow passage forming part; 33. a positioning column; 4. a core; 41. a core body; 411. a first insert post; 412. a second insert post; 413. a first insertion part; 414. a second insertion part; 42. a first auxiliary core; 43. a second auxiliary core.

Detailed Description

As shown in fig. 3 to 5, the cast molding plate of the pump cover for the wind power comprises an upper molding plate 2, a lower molding plate 3 and a mold core 4, wherein the upper molding plate 2 and the lower molding plate 3 are made of hard materials, generally made of iron, plastic or resin, and the mold core 4 is formed by compacting molding sand. The upper template 2 is used for forming an upper template, the lower template 3 is used for forming a lower template, the core 4 is arranged in the die cavity of the upper template and the die cavity of the lower template, then the upper template and the lower template are closed, molten iron pouring is carried out after the closing, and a casting is formed.

The upper and lower die plates 2 and 3 are divided into two parts, one is a runner forming part and the other is a casting forming part, and the casting forming part is described first below.

As shown in fig. 4, the upper mold plate 2 has an upper mold member 21, the upper mold member 21 includes an upper mold member 211 and a first positioning portion 212, the upper mold member 211 is integrally connected to the upper side of the upper mold plate 2, the upper mold member 211 has the same shape as the upper half portion of the tray body 11, and the first positioning portion 212 is integrally connected to the middle portion of the upper surface of the upper mold member 211 and protrudes from the upper mold member 211.

As shown in fig. 5, the lower molding plate 3 has a lower molding member 31 thereon, the lower molding member 31 includes a lower molding body 311, a first auxiliary molding portion 312, a second auxiliary molding portion 313 and a second positioning portion 314, the outer shape of the lower molding body 311 is the same as the outer contours of the lower surfaces of the cylinder body 12 and the tray body 11, the first auxiliary molding portion 312 and the second auxiliary molding portion 313 are integrally connected to the outer circumferential surface of the lower molding body 311, the first auxiliary molding portion 312 and the second auxiliary molding portion 313 are symmetrically disposed on the outer circumferential surface of the lower molding body 311, and the second positioning portion 314 is integrally connected to the middle position of the top of the lower molding body 311 and protrudes out of the lower molding body 311.

As shown in fig. 3, the core 4 includes a core body 41, a first auxiliary core 42 and a second auxiliary core 43, a first insert column 411 and two second insert columns 412 are convexly disposed on a circumferential surface of the core body 41, the first insert column 411 and the second insert column 412 are disposed opposite to each other, an inner shape of the first auxiliary core 42 is the same as an outer contour shape of the cylinder 12 at the second through hole 122, an inner shape of the second auxiliary core 43 is the same as an outer contour shape of the cylinder 12 at the functional groove 121, and an outer shape of the second auxiliary core 43 is the same as an outer peripheral shape of the second auxiliary forming portion 313. The upper end of the core 41 has a first socket part 413, the lower end of the core 41 has a second socket part 414, the shape of the first socket part 413 is the same as that of the first positioning part 212, and the shape of the second socket part 414 is the same as that of the second positioning part 314.

After the upper mold plate is molded by the upper mold plate 2, a portion having the same shape as the upper mold body 211 and the first positioning portion 212 is formed in the cavity of the upper mold plate, and at this time, the first mating portion 413 of the core 41 can be inserted into the cavity molded by the first positioning portion 212, and the core 41 and the cavity molded by the upper mold body 211 can form a cavity for molding the upper half of the casting. After the lower template is molded by the lower template 3, the parts with the same shape as the outer contours of the lower mold body 311, the first auxiliary molding part 312, the second auxiliary molding part 313 and the second positioning part 314 are formed in the cavity of the lower template, then the first auxiliary core 42 is inserted into the cavity molded by the first auxiliary molding part 312, the second auxiliary core 43 is inserted into the cavity molded by the second auxiliary molding part 313, the second inserting part 413 on the core body 41 is inserted into the cavity molded by the second positioning part 314, and at this time, the core body 41, the first auxiliary core 42 and the second auxiliary core 43 and the cavity molded by the lower mold body 311 form a cavity for molding the lower part of the casting. After the upper template and the lower template are matched, a cavity with the shape identical to that of a casting can be formed, and therefore one-time casting forming is achieved.

As shown in fig. 5, in the process of placing the core body 41, the first auxiliary core 42 and the second auxiliary core 43 into the mold cavity, in order to facilitate positioning and improve stability of placing the core body 41, the first auxiliary core 42 and the second auxiliary core 43, positioning grooves may be formed by downwardly recessing the lower end faces of the first auxiliary molding part 312, the second auxiliary molding part 313 and the second positioning part 314, and the bottom parts of the core body 41, the first auxiliary core 42 and the second auxiliary core 43 are provided with the same shape as the lower end face shapes of the first auxiliary molding part 312, the second auxiliary molding part 313 and the second positioning part 314.

As shown in fig. 4 and 5, in this embodiment, each upper shaping plate 2 has four upper shaping bodies 211 arranged in a quadrilateral shape, each lower shaping plate 3 has four lower shaping bodies 311 arranged in a quadrilateral shape, the four upper shaping bodies 211 are arranged in a front-back and left-right symmetrical manner, and the four lower shaping bodies 311 are also arranged in a front-back and left-right symmetrical manner, so that four castings can be formed by one-time casting, the production efficiency is greatly improved, and the excessively slow flow speed of molten iron during pouring is not caused, thereby ensuring the casting quality.

As shown in fig. 4, a pouring channel forming portion 22, a first flow channel forming portion 23, a second flow channel forming portion 24, and a third flow channel forming portion 25 are convexly disposed above the upper mold plate 2, wherein the intersection of the first flow channel forming portion 23 and the second flow channel forming portion 24 is located at the central position between the four upper mold bodies 211, the first flow channel forming portion 23 is perpendicular to the second flow channel forming portion 24, the first flow channel forming portion 23 is located at the middle position of the two rows of upper mold bodies 211, the second flow channel forming portion 24 is located at the middle position of the two rows of upper mold bodies 211, the number of the third flow channel forming portions 25 is four, and two ends of each third flow channel forming portion 25 are respectively connected to the second flow channel forming portion 25 and one upper mold body 211. As shown in fig. 5, a communicating flow channel molding part 32 is provided to protrude above the lower mold plate 3, and the communicating flow channel molding part 32 is located at a position corresponding to a position between the sprue molding part 22 and the first sprue molding part 23. At the moment, after the upper template and the lower template are molded by the upper template 2 and the lower template 3, the communicating runner is positioned in the lower template, the pouring channel, the first runner, the second runner and the third runner are positioned in the upper template, after the upper template and the lower template are closed, the pouring channel, the communicating runner, the first runner, the second runner and the third runner can be communicated with each other, and the communicating runner, the pouring channel and the first runner are staggered with each other. In the process of pouring molten iron, the molten iron can sequentially enter a cavity of a molded casting through a pouring channel, a communicating channel, a first channel, a second channel and a third channel, and the molten iron can firstly pass through the pouring channel, the communicating channel and the first channel which are mutually communicated in a staggered manner in the flowing process, so that the impact force of the molten iron is greatly reduced, the flowing smoothness is improved, and the purpose of improving the casting quality of the casting is achieved.

Due to the special shape of the casting, the heat dissipation at the position where the tray body 11 is connected with the cylinder 12 is slow, which results in slow cooling speed at the position, and thus internal defects are easily caused in the casting process. For this, as shown in fig. 4, a plurality of chills 213 may be placed above the upper molding body 211, and the chills 213 are uniformly spaced in the circumferential direction. In the process of molding the upper mold plate, the chills 213 are buried in the molding sand of the upper mold plate, after the upper mold plate and the lower mold plate are closed, the positions of the chills 213 are located around the upper end of the core body 41, after the poured molten iron fills the cavity, the chills 213 can cool the tray body 11, the heat dissipation speed of the position where the tray body 11 is connected with the cylinder 12 is increased through heat conduction, the heat dissipation speed of the whole casting is kept to be approximately the same, and therefore the quality of casting molding is improved.

Meanwhile, the alignment accuracy of the upper template and the lower template in the die assembly process directly influences whether the formed appearance of the casting is qualified. In order to improve the accuracy of the closing of the upper and lower mold plates, as shown in fig. 4 and 5, positioning holes 26 may be formed in the upper mold plate 2, positioning posts 33 may be protruded from the lower mold plate 3, and the positioning posts 33 and the positioning holes 26 may be matched with each other and located at positions corresponding to each other. At this time, in the process of forming the upper template, the positioning holes 26 can be used for forming the pillars with the corresponding shapes on the upper template, the positioning columns 33 can be used for forming the holes with the corresponding shapes on the lower template, and the pillars on the upper template and the holes on the lower template are mutually inserted and matched to complete the accurate positioning of the upper template and the lower template.

The embodiments of the present invention are preferred embodiments of the present application, and the scope of protection of the present application is not limited by the embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims (8)

1. A casting template of a pump cover for wind power comprises an upper template (2), a lower template (3) and a mold core (4), an upper forming part (21) is integrally arranged on the upper shaping plate (2), the upper forming part (21) is provided with an upper shaping part (211) which has the same shape as the outer surface of the upper half part of the pump cover, a lower forming part (31) is integrally arranged on the lower shaping plate (3), characterized in that the lower forming member (31) comprises a lower forming body (311), a first auxiliary forming part (312) and a second auxiliary forming part (313), the lower molding body (311) and the outer surface of the lower half part of the pump cover are the same in shape, the first auxiliary molding part (312) and the second auxiliary molding part (313) are integrally connected to the outer peripheral surface of the lower molding body (311), the first auxiliary forming part (312) and the second auxiliary forming part (313) are symmetrically arranged on the outer peripheral surface of the lower forming body (311); the mold core (4) comprises a core body (41), a first auxiliary core (42) and a second auxiliary core (43), a first inserting column (411) and two second inserting columns (412) are arranged on the peripheral surface of the core body (41) in a protruding mode, the first inserting column (411) and the second inserting column (412) are arranged oppositely, the inner side shapes of the first auxiliary core (42) and the second auxiliary core (43) are the same as the shape of the peripheral surface of a corresponding pump cover, the outer side shape of the first auxiliary core (42) is the same as the shape of the peripheral surface of a first auxiliary forming portion (312), and the outer side shape of the second auxiliary core (43) is the same as the shape of the peripheral surface of a second auxiliary forming portion (313).

2. The cast type plate of a pump cover for wind power according to claim 1, wherein the upper molding member (21) further comprises a first positioning portion (212), the first positioning portion (212) is integrally connected to the middle portion of the upper surface of the upper molding member (211) and protrudes out of the upper molding member (211), the upper end of the core body (41) is provided with a first inserting portion (413), and the shape of the first inserting portion (413) is the same as that of the first positioning portion (212).

3. The cast template of the pump cover for the wind power generation according to claim 2, wherein a plurality of chills (213) are placed above the upper molding body (211), and the chills (213) are uniformly spaced along the circumferential direction.

4. The cast profile board of a pump cover for wind power according to claim 1, wherein the lower molding member (31) further comprises a second positioning portion (314), the second positioning portion (314) is integrally connected to the middle position of the top of the lower molding member (311) and protrudes out of the lower molding member (311), the lower end of the core body (41) is provided with a second insertion portion (414), and the shape of the second insertion portion (414) is the same as that of the second positioning portion (314).

5. The cast template of a pump cover for wind power according to claim 4, wherein the lower end faces of the first auxiliary forming part (312), the second auxiliary forming part (313) and the second positioning part (314) are all recessed downwards to form positioning grooves.

6. The casting template of the pump cover for the wind power generation according to claim 1, wherein a pouring channel molding part (22) and a first flow channel molding part (23), a second flow channel molding part (24) and a third flow channel molding part (25) which are sequentially communicated are convexly arranged above the upper template (2), and one end, far away from the second flow channel molding part (24), of the third flow channel molding part (25) is integrally connected with an upper molding body (211); a communicating flow channel forming part (32) is convexly arranged above the lower template (3), and the position of the communicating flow channel forming part (32) corresponds to the position between the pouring channel forming part (22) and the first flow channel forming part (23).

7. The cast template of a pump cover for wind power according to claim 6, wherein the upper template (2) has four upper profiles (211) arranged in a quadrilateral shape, and the lower template (3) has four lower profiles (311) arranged in a quadrilateral shape.

8. The casting template of the pump cover for the wind power generation as claimed in any one of claims 1 to 7, wherein the upper template (2) is provided with a positioning hole (26), the lower template (3) is convexly provided with a positioning column (33), and the positioning column (33) and the positioning hole (26) can be matched with each other and are located at positions corresponding to each other.

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