CN211276449U

CN211276449U - Hydraulic motor end cover forming casting die

Info

Publication number: CN211276449U
Application number: CN201922397377.6U
Authority: CN
Inventors: 孔艺
Original assignee: Zhenjiang Daxing Machinery Manufacturing Co ltd
Current assignee: Zhenjiang Daxing Machinery Manufacturing Co ltd
Priority date: 2019-12-27
Filing date: 2019-12-27
Publication date: 2020-08-18
Anticipated expiration: 2029-12-27

Abstract

The utility model discloses a hydraulic motor end cover forming and casting die, which relates to the technical field of hydraulic motors and comprises an upper die and a lower die, a cavity with an opening at the upper end is arranged in the lower die, the upper die blocks or opens the cavity, a plurality of injection ports with openings at the upper ends are arranged inside the upper die, the cross sections of the injection ports are round, the lower end of each injection port is communicated with a plurality of injection channels, one end of each injection channel, which is far away from the injection port, penetrates through the upper die and is communicated with the die cavity, the upper end of each injection port is provided with an injection hopper, a filter screen is transversely connected inside the injection hopper, an air exhaust channel communicated with the cavity is arranged inside the lower die, one end of the air exhaust channel far away from the cavity extends to the side surface of the lower die, and an air extractor is connected with the end part, the utility model discloses can improve the quality of casting finished end cover.

Description

Hydraulic motor end cover forming casting die

Technical Field

The utility model relates to a hydraulic motor technical field, in particular to hydraulic motor end cover forming and casting mould.

Background

With the progress of society, the mechanical manufacturing industry has been greatly developed, higher requirements are also provided for the equipment for preliminarily forming the motor end cover, when the existing mould is used for forming the motor end cover, molten flowable liquid is generally directly and vertically injected into a cavity from a casting channel of a metal casting mould, so that the molten metal is gathered at a certain position after entering the cavity and then is dispersed to various positions of the cavity, the casting method often causes different time and temperature when the molten metal reaches various cavities in the casting process, and the properties of rigidity, toughness and the like of different surfaces of the end cover cast after casting forming are inconsistent, thereby affecting the performance of a steel plate.

In addition, a certain amount of gas is basically trapped in the cavity, which is called trapping gas, so that when a user carries out casting, metal liquid is unevenly distributed in the cavity, the welding of the steel plate is not firm, and the strength cannot reach the standard.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a hydraulic motor end cover forming and casting mould for solve the technical problem that above-mentioned background art exists.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a hydraulic motor end cover shaping casting die, includes mould and lower mould, upper end open-ended die cavity has been seted up to the inside of lower mould, go up the mould shutoff or open the die cavity, a plurality of upper end open-ended sprue is seted up to the inside of going up the mould, the transversal circular that personally submits of sprue, the lower extreme of every sprue all communicates there is a plurality of sprue passageway, the one end that sprue was kept away from to the sprue passageway is passed and is linked together with the die cavity, the upper end of every sprue is provided with the sprue fill, the inside cross-connection of sprue fill has the filter screen, and the bleed-off passage of intercommunication die cavity is seted up to the inside of lower mould, and the one end that the die cavity was kept away from to the bleed-off passage extends to the side surface.

Preferably, annotate the hopper including threaded connection portion and be located threaded connection portion upper end and with threaded connection portion integrated into one piece's funnel, the filter screen is pegged graft in the handing-over department of funnel and threaded connection portion, threaded connection portion and the lateral wall threaded connection of sprue.

Preferably, the air extracting device comprises an air extracting pump, an output end of the air extracting pump is connected with a connector, and the connector is inserted in the air extracting channel in a threaded manner.

Preferably, the number of the injection ports is three, the injection ports are uniformly distributed in the upper die, and 4 injection channels are symmetrically distributed around the central axis of each injection port.

Preferably, two air outlet channels are further formed in the upper die and are respectively located between the adjacent injection ports, the upper ends of the air outlet channels are located on the upper surface of the upper die, the lower ends of the air outlet channels are communicated with the die cavity, and sealing pieces are inserted into the upper ends of the air outlet channels.

Preferably, the sealing member is made of rubber materials and comprises a handheld portion, a sealing portion and a guiding portion, wherein the handheld portion, the sealing portion and the guiding portion are arranged from top to bottom respectively, the diameter of the sealing portion is larger than that of the air outlet channel, an annular groove is formed between the guiding portion and the sealing portion, and an annular bulge matched with the annular groove is arranged inside the air outlet channel.

The utility model has the advantages as follows: the utility model relates to a hydraulic motor end cover molding casting mould, which is characterized in that a feeding port is arranged at the top of an upper mould, a feeding channel is arranged below the feeding port, thereby leading the material injection channel to be fully distributed at the bottom of the upper die, leading the molten metal to simultaneously enter each position of the lower die cavity when passing through the material injection channel, so that the rigidity and toughness of different surfaces of the cast finished product are consistent, thereby improving the quality of the cast finished product, in addition, after the casting is finished, the molten metal is left in the material injection channel, the molten metal in the cavity is pressurized to a certain degree, so that the molten metal retracted due to cooling in the cavity is fed, the size of the cast finished product is more in accordance with the design standard, in addition, trapped air in the cavity is pumped out through an air pumping device, when a user carries out casting, the metal liquid is uniformly distributed in the cavity, so that bubbles are not generated, and the produced end cover has good performance.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of the feeding hopper of the present invention;

FIG. 3 is a schematic structural view of the sealing member of the present invention;

fig. 4 is a schematic view of the internal structure of the outlet passage.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

With reference to fig. 1 to 3, the technical purpose of the present invention is achieved by the following technical solutions: the utility model provides a hydraulic motor end cover forming casting mould, includes mould 1 and lower mould 2, upper end open-ended die cavity 3 has been seted up to the inside of lower mould 2, go up 1 shutoff of mould or open die cavity 3, its characterized in that: go up the inside of mould 1 and seted up a plurality of upper end open-ended sprue 4, the transversal circular of personally submitting of sprue 4, the lower extreme of every sprue 4 all communicates has a plurality of notes material passageway 5, the one end that sprue 4 was kept away from to notes material passageway 5 passes mould 1 and is linked together with die cavity 3, the upper end of every sprue 4 is provided with notes material hopper 6, the inside cross-connection of notes material hopper 6 has filter screen 7, and the bleed passage 8 of intercommunication die cavity 3 is seted up to the inside of lower mould 2, and the one end that die cavity 3 was kept away from to bleed passage 8 extends to the side surface of lower mould 2 to there is an air exhaust device at this end connection, and air exhaust device includes an aspiration pump 9, the output of aspiration pump 9 is connected with a joint 10, joint 10 screw thread is pegged graft in the inside of bleed passage 8. The utility model relates to a hydraulic motor end cover forming casting mould, through setting up sprue 4 at the top of last mould 1, sprue 4 below is seted up annotates material passageway 5, thereby make annotate material passageway 5 and be covered with the bottom of last mould 1, molten metal enters into each position of lower mould 2 die cavity 3 simultaneously when annotating material passageway 5 way, thereby make the rigidity and the toughness of the finished product different faces that casts out all unanimous, thereby improve the quality of cast product, furthermore, after the casting is accomplished, molten metal stays in annotating material passageway 5, cause certain pressure to the molten metal in die cavity 3, thereby carry out the feeding to the molten metal that contracts because of cooling in the die cavity 3, make the finished product size that casts out accord with the design standard more, in addition take out the stranded gas in the die cavity 3 through aspiration pump 9, the user is when casting, molten metal distributes evenly in die cavity 3, no air bubbles are generated, and the produced end cover has good performance.

Preferably, annotate hopper 6 include threaded connection portion 61 and be located threaded connection portion 61 upper end and with threaded connection portion 61 integrated into one piece's funnel 62, filter screen 7 is pegged graft in funnel 62 and threaded connection portion 61 handing-over department, threaded connection portion 61 and the lateral wall threaded connection of sprue 4, the degree of difficulty of annotating the material can be reduced in the setting of funnel 62 for the metal liquid can not be excessive, and the impurity in the metal liquid can be filtered in the setting of filter screen 7, guarantees the quality and the performance of the end cover of casting.

Preferably, the quantity of sprue 4 is three, and even distribution is in the inside of

last mould

1, and 4 of the quantity of annotating material passageway 5 below every sprue 4, about the central axis symmetric distribution of sprue 4, of course the utility model discloses the quantity of annotating material passageway 4 and annotating material passageway 5 is not restricted to three and four, specifically depending on the size of the fashioned end cover of needs, but as long as realize the same technological effect with the same technical means all be in the protection scope of the utility model.

Preferably, the upper die 1 is further provided with two gas outlet channels 11, the two gas outlet channels 11 are respectively located between adjacent injection ports 4, the upper end of each gas outlet channel 11 is located on the upper surface of the upper die 1, the lower end of each gas outlet channel 11 is communicated with the cavity 3, the upper end of each gas outlet channel 11 is connected with a sealing element 12 in an inserting manner, each sealing element 12 is made of rubber materials and comprises a handheld portion 121, a sealing portion 122 and a guiding portion 123 which are respectively arranged from top to bottom, the diameter of each sealing portion 122 is larger than that of each gas outlet channel 11, an annular groove 124 is formed between each guiding portion 123 and each sealing portion 122, an annular protrusion 13 matched with the annular groove 124 is arranged inside each gas outlet channel 11, the sealing element 12 in the scheme is in interference fit with the annular groove 124 through the annular protrusion 13, so that the sealing element 12 completely blocks the gas outlet channels 11, no gas enters during the, the sealing element 12 in the sealing mode can not fall off due to cleaning and maintenance of the die, and the sealing element 12 can be opened after the end cover is cast in the cavity 3.

The above description specifically describes the preferred embodiment of the present invention, but of course, the present invention can also adopt different forms from the above embodiments, and equivalent changes or corresponding modifications made by those skilled in the art without departing from the spirit of the present invention should fall within the protection scope of the present invention.

Claims

1. The utility model provides a hydraulic motor end cover forming casting mould, includes mould and lower mould, upper end open-ended die cavity is seted up to the inside of lower mould, go up the mould shutoff or open die cavity, its characterized in that: the mould is characterized in that a plurality of upper end open-ended injection port is provided in the upper mould, the cross section of the injection port is circular, the lower end of each injection port is communicated with a plurality of injection channels, one end of each injection port, which is far away from the injection port, is passed through the upper mould and communicated with the cavity, the upper end of each injection port is provided with the injection hopper, the inside of the injection hopper is transversely connected with a filter screen, the air exhaust channel of the communicated cavity is provided in the lower mould, one end of the air exhaust channel, which is far away from the cavity, extends to the side surface of the lower mould, and the end part is connected with.

2. The hydraulic motor end cap forming and casting mold of claim 1, wherein: the material injection hopper comprises a threaded connection part and a funnel which is positioned at the upper end of the threaded connection part and is integrally formed with the threaded connection part, the filter screen is inserted at the joint of the funnel and the threaded connection part, and the threaded connection part is in threaded connection with the side wall of the material injection port.

3. The hydraulic motor end cap forming and casting mold of claim 2, wherein: the air extracting device comprises an air extracting pump, the output end of the air extracting pump is connected with a connector, and the connector is inserted in the air extracting channel in a threaded mode.

4. The hydraulic motor end cap forming and casting mold of claim 3, wherein: the quantity of sprue is three, and even distribution is in the inside of last mould, and 4 of the quantity of every sprue below notes material passageway distribute about the central axis symmetry of sprue.

5. The hydraulic motor end cap forming and casting mold of claim 4, wherein: the upper die is further provided with two air outlet channels which are respectively positioned between adjacent injection ports, the upper ends of the air outlet channels are positioned on the upper surface of the upper die, the lower ends of the air outlet channels are communicated with the die cavity, and the upper ends of the air outlet channels are spliced with sealing pieces.

6. The hydraulic motor end cap forming and casting mold of claim 5, wherein: the sealing member is made of rubber materials and comprises a handheld portion, a sealing portion and a guide portion, wherein the handheld portion, the sealing portion and the guide portion are arranged from top to bottom respectively, the diameter of the sealing portion is larger than that of the air outlet channel, an annular groove is formed between the guide portion and the sealing portion, and an annular bulge matched with the annular groove is arranged inside the air outlet channel.