CN210359070U - Forging rail seat forming die for large coal mine scraper - Google Patents
Forging rail seat forming die for large coal mine scraper Download PDFInfo
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- CN210359070U CN210359070U CN201920925584.1U CN201920925584U CN210359070U CN 210359070 U CN210359070 U CN 210359070U CN 201920925584 U CN201920925584 U CN 201920925584U CN 210359070 U CN210359070 U CN 210359070U
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Abstract
The utility model provides a large-scale colliery scraper blade machine is with forging rail seat forming die, including last mould and lower mould, go up mould and lower mould and be provided with the forging inner chamber, go up and constitute the forging die cavity that corresponds with the rail seat shape behind mould and the lower mould compound die, set up the recess on going up mould and the lower mould respectively, two groove position correspond, constitute the peeling die cavity of getting rid of the cinder. The section of the groove is rectangular, and the length of the groove is not less than the length of the forging cavity. The upper die and the lower die are provided with burr grooves around the forging inner cavity, and the grooves are formed in the burr grooves. The upper die is provided with a positioning lug, and the lower die is provided with a positioning groove corresponding to the positioning lug. The height of the peeling cavity after die assembly is 10 mm lower than that of the round steel after blanking. The utility model discloses a mould does not need special frock or the mould of getting rid of cinder, easy operation, efficient, and the cost is reduced has improved market competition. And the round steel is easier to be forged and formed in the next step after being flattened and deformed.
Description
Technical Field
The utility model belongs to the forging field, concretely relates to large-scale colliery scraper blade machine forges rail seat forming die.
Background
The scraper conveyor is a main mining and transporting device of a fully mechanized excavation working surface of a coal mine tunnel, is widely applied under a coal mine, is used for a running track of a coal mining machine and a pushing supporting point of a hydraulic support, and is an important device for coal mining at present. The rail seat is used as an important part of the scraper conveyor, and is welded on the baffle groove side to be matched with the pin rail to be used as a running rail of the coal mining machine, the pin rail and a traveling gear of the coal mining machine approximately form a gear rack transmission mechanism, the conditions of severe working conditions and complex stress conditions exist, the failure of the rail seat can cause the shutdown of the coal mining machine and the scraper conveyor on the whole working face, the replacement of the rail seat can seriously affect the coal mining efficiency, and the enterprise cost is increased. In the past, rail seats are all cast steel parts, but with market demands and the models of scraper machines becoming larger and larger, the requirements on the physicochemical properties of the key parts of the rail seats are higher and higher, the common cast steel materials cannot meet the use requirements of large-scale scraper machines, and the forged rail seats with higher strength, higher toughness and better mechanical properties have become the market demands. The rail seat belongs to high muscle, thin wall forging, belongs to complicated die forging, and the forging shaping degree of difficulty is big, and the defect rate is high.
Patent CN201820422925.9 discloses a rail seat body forging die, which can forge two rail seats simultaneously. But this is determined by the shape of the rail seat in the patent. Rail seat structure in the patent stretches out on one side, and it is great to cause the asymmetric degree in structure, and the fashioned mould of single rail seat, the atress is inhomogeneous and extravagant material, so adopt two die cavity shaping effects that the symmetry set up better. This configuration is not optimal for molds that are not structurally dissimilar from the left and right. And round steel blanking is needed in the process of forging the rail seat. The round steel has oxide skin, and if the round steel is directly forged, the error is caused, so that the quality defect of the forged piece is caused, and the procedure of removing the oxide skin is needed. With the intensification of market competition, various methods are needed to optimize the process, reduce the working procedures and reduce the cost.
SUMMERY OF THE UTILITY MODEL
The utility model provides a reduce process, conveniently get rid of the large-scale colliery scraper blade machine of unloading back round steel cinder and forge rail seat forming die.
The purpose of the utility model is realized with the following mode: the utility model provides a large-scale colliery scraper blade machine forges rail seat forming die, includes mould and lower mould, goes up mould and lower mould and is provided with the forging inner chamber, goes up and constitutes the forging die cavity that corresponds with the rail seat shape after mould and lower mould compound die, goes up and sets up the recess on mould and the lower mould respectively, and two recess positions correspond, constitute the peeling die cavity of getting rid of cinder.
The section of the groove is rectangular, and the length of the groove is not less than the length of the forging cavity.
The upper die and the lower die are provided with burr grooves around the forging inner cavity, and the grooves are formed in the burr grooves.
The upper die is provided with a positioning lug, and the lower die is provided with a positioning groove corresponding to the positioning lug.
The height of the peeling cavity after die assembly is 10 mm lower than that of the round steel after blanking.
The utility model has the advantages that: the utility model discloses a mould does not need special frock or the mould of getting rid of cinder, easy operation, efficient, and the cost is reduced has improved market competition. And the round steel is easier to be forged and formed in the next step after being flattened and deformed.
Drawings
Fig. 1 is a bottom view of the upper mold.
Fig. 2 is a plan view of the lower mold.
Fig. 3 is a sectional view of the upper mold and the lower mold taken along line a-a after the molds are closed.
Fig. 4 is a sectional view of the upper and lower dies taken from B-B after the dies are closed.
FIG. 5 is a cross-sectional view of the upper and lower dies from C-C after the die assembly.
Wherein, 1 is an upper die, 2 is a lower die, 3 is a forging inner cavity, 4 is a groove, 5 is a burr groove, 6 is a positioning lug and 7 is a positioning groove.
Detailed Description
As shown in fig. 1-5, a forging rail seat forming die for a large coal mine scraper blade machine comprises an upper die 1 and a lower die 2, wherein the upper die 1 and the lower die 2 are provided with forging inner cavities 3, and after the upper die 1 and the lower die 2 are assembled, a forging cavity corresponding to the shape of a rail seat is formed. The upper die 1 and the lower die 2 are respectively provided with a groove 4, and the two grooves 4 correspond to each other in position to form a peeling cavity for removing oxide skin. The recess 4 of lower mould is put into to the round steel after the unloading, goes up mould 1 and moves gently to press the round steel downwards, and the round steel warp, and the cinder breaks away from, then clearance cinder, and mould 1 and lower mould 2 can not closely the compound die here, only need go up mould 1 and move certain distance and make the round steel warp can. The utility model discloses a mould does not need special frock or the mould of getting rid of the cinder, easy operation, efficient. And the round steel is easier to be forged and formed in the next step after being flattened and deformed.
The section of the groove 4 is rectangular, and the length of the groove is not less than that of the rail seat forging cavity. Go up mould 1 and lower mould 2 and set up burr groove 5 around forging the inner chamber, recess 4 sets up in burr groove 5. The space can be saved, and the size of the die is reduced. Go up mould 1 and set up location lug 6, set up constant head tank 7 on the lower mould 2 corresponding location lug 6's position.
The height of the peeling cavity after die assembly can be 10 mm lower than that of the round steel after blanking. Under the structure, the discharged round steel can be placed in the peeling cavity, and the round steel for removing oxide skin can be placed in the forging cavity. And after die assembly, descaling of the round steel and forming of the rail seat can be simultaneously completed.
In specific implementation, a mould is manufactured; adopting round steel for blanking, wherein the round steel is subjected to UT flaw detection; heating by using a medium-frequency induction heating furnace at 1230 ℃ and 1200 ℃ at the beginning. The round steel is put into a peeling cavity to be slightly pressed and flattened, oxide skin falls off, and the round steel is cleaned by compressed air. And 8T die forging hammer single-cavity forming is adopted.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
Claims (5)
1. A forging rail seat forming die for a large coal mine scraper machine comprises an upper die and a lower die, wherein the upper die and the lower die are provided with forging inner cavities, and after the upper die and the lower die are assembled, a forging cavity corresponding to the shape of a rail seat is formed; the method is characterized in that: the upper die and the lower die are respectively provided with a groove, and the two grooves correspond to each other in position to form a peeling cavity for removing oxide skin.
2. The forging rail seat forming die for the large coal mine scraper machine according to claim 1, characterized in that: the section of the groove is rectangular, and the length of the groove is not less than that of the forging cavity.
3. The forging rail seat forming die for the large coal mine scraper machine according to claim 2, characterized in that: the upper die and the lower die are provided with burr grooves around the forging inner cavity, and the grooves are formed in the burr grooves.
4. The forging rail seat forming die for the large coal mine scraper machine according to any one of claims 1 to 3, which is characterized in that: the upper die is provided with a positioning lug, and the lower die is provided with a positioning groove corresponding to the positioning lug.
5. The forging rail seat forming die for the large coal mine scraper machine, according to claim 4, is characterized in that: the height of the peeling cavity after die assembly is 10 mm lower than that of the round steel after blanking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920925584.1U CN210359070U (en) | 2019-06-19 | 2019-06-19 | Forging rail seat forming die for large coal mine scraper |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920925584.1U CN210359070U (en) | 2019-06-19 | 2019-06-19 | Forging rail seat forming die for large coal mine scraper |
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| CN210359070U true CN210359070U (en) | 2020-04-21 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976788A (en) * | 2021-10-15 | 2022-01-28 | 山西豪钢重工股份有限公司 | Forging forming method for middle groove ledge |
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2019
- 2019-06-19 CN CN201920925584.1U patent/CN210359070U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113976788A (en) * | 2021-10-15 | 2022-01-28 | 山西豪钢重工股份有限公司 | Forging forming method for middle groove ledge |
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