CN203124581U - Steel tube necking down mechanism - Google Patents
Steel tube necking down mechanism Download PDFInfo
- Publication number
- CN203124581U CN203124581U CN 201220737945 CN201220737945U CN203124581U CN 203124581 U CN203124581 U CN 203124581U CN 201220737945 CN201220737945 CN 201220737945 CN 201220737945 U CN201220737945 U CN 201220737945U CN 203124581 U CN203124581 U CN 203124581U
- Authority
- CN
- China
- Prior art keywords
- opening
- reducing
- swing arm
- closing
- hinge
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses a steel tube necking down mechanism. The problems that a necking down part is unstable in size and large in cropping loss in an existing necking down mechanism are solved. The steel tube necking down mechanism comprises a necking down jacking oil cylinder (4), wherein the necking down jacking oil cylinder (4) is fixedly connected on the top face of a fixing support (1), a left hinge shaft (2) is in hinge joint with the middle of the inner side of a left pincer body swing arm (6), a right hinge shaft (3) is in hinge joint with the middle of the inner side of a right pincer body swing arm (15), a left opening hinge shaft base (7) and a left opening hinge shaft (8) are arranged on the tail part of the left pincer body swing arm (6), a right opening hinge shaft base (14) and a right opening hinge shaft (13) are arranged on the tail part of the right pincer body swing arm (15), a cylinder bottom ear ring (9) of a pincer body opening oil cylinder (10) is connected on the left pincer hinge shaft (8) in a penetrating mode, and a shaft bottom ear ring (12) of an output shaft (11) of the pincer body opening oil cylinder (10) is connected on the right opening hinge shaft (13) in a penetrating mode. The steel tube necking down mechanism is simple in structure, easy to operate and even in thickness of the necking down part.
Description
Technical field
The present invention relates to a kind of smelter seamless steel pipe production, particularly a kind of steel pipe reducing mechanism of push pipe unit steel pipe's production.
Background technology
Reducing mechanism is one of key equipment of push pipe unit production technology, and the quality of reducing shape is directly connected to the success or failure of push pipe unit.The reducing part is too big, and then crop loss is big, and metal loss is big, the production cost height; The reducing part is too little, pushes up easily in the push pipe process and wears, and causes and scraps.At present, the domestic and international steel pipe reducing mechanism of push pipe unit push-bench group adopts all-hydraulic horizontal press or two claw pincers type reducing mechanisms radially mostly.Mainly there is reducing portion size instability in these two kinds of reducing mechanisms, crop loss is big, external diameter to hollow billet is had relatively high expectations, and pipe end is concordant, radially two claw pincers type reducing mechanism reducing profiles are near rhombus, choke divides wall unevenness, and crop loss is big, and seamed edge enters roll gap easily and causes the card accident of rolling.
Summary of the invention
The invention provides a kind of steel pipe reducing mechanism, solved the unstable and big technical problem of crop loss of reducing portion size that existing reducing mechanism exists.
The present invention overcomes the above problems by following scheme:
A kind of steel pipe reducing mechanism, comprise hold-down support, be provided with left hinge and right hinge symmetrically at the two ends of hold-down support, be set with reducing at the end face of hold-down support and eject oil cylinder, the top that ejects the output shaft of oil cylinder in reducing is provided with center reducing module, the middle inside of left caliper swing arm and left hinge are hinged, the middle inside of right caliper body swing arm and right hinge are hinged, afterbody in the left caliper swing arm is provided with left opening and closing hinged block, in left opening and closing hinged block, be provided with left opening and closing hinge, afterbody in the right caliper body swing arm is provided with right opening and closing hinged block, in right opening and closing hinged block, be provided with right opening and closing hinge, the cylinder bottom earrings cross-under of caliper opening and closing oil cylinder is on left opening and closing hinge, the axle head earrings cross-under of the output shaft of caliper opening and closing oil cylinder is on right opening and closing hinge, head in the left caliper swing arm is provided with left reducing module, is provided with right reducing module, center reducing module at the head of right caliper body swing arm, left side reducing module and right reducing module are distributed on the same circumference.
In the hole shape of being formed by center reducing module, left reducing module and right reducing module, be provided with the top of hollow billet, in hollow billet, be provided with push rod.
The present invention has simple in structure, easy operating, the pass sub-circular, choke divides wall thickness even, and reducing length is little, and is lower to the requirement of the external diameter of hollow billet and hollow billet end flatness.
Description of drawings
Fig. 1 is structural representation of the present invention;
Fig. 2 is the throat structure schematic diagram that reducing module in center of the present invention, left reducing module, right reducing module, hollow billet and push rod are formed.
The specific embodiment
A kind of steel pipe reducing mechanism, comprise hold-down support 1, be provided with left hinge 2 and right hinge 3 symmetrically at the two ends of hold-down support 1, be set with reducing at the end face of hold-down support 1 and eject oil cylinder 4, the top that ejects the output shaft of oil cylinder 4 in reducing is provided with center reducing module 5, the middle inside of left caliper swing arm 6 and left hinge 2 are hinged, the middle inside of right caliper body swing arm 15 and right hinge 3 are hinged, afterbody in left caliper swing arm 6 is provided with left opening and closing hinged block 7, in left opening and closing hinged block 7, be provided with left opening and closing hinge 8, afterbody in right caliper body swing arm 15 is provided with right opening and closing hinged block 14, in right opening and closing hinged block 14, be provided with right opening and closing hinge 13, cylinder bottom earrings 9 cross-under of caliper opening and closing oil cylinder 10 are on left opening and closing hinge 8, axle head earrings 12 cross-under of the output shaft 11 of caliper opening and closing oil cylinder 10 are on right opening and closing hinge 13, head in left caliper swing arm 6 is provided with left reducing module 17, head in right caliper body swing arm 15 is provided with right reducing module 16, center reducing module 5, left side reducing module 17 and right reducing module 16 are distributed on the same circumference.
In the hole shape of being formed by center reducing module 5, left reducing module 17 and right reducing module 16, be provided with the top of hollow billet 19, in hollow billet 19, be provided with push rod 18.
Three-jaw reducing of the present invention mechanism adopts three-jaw at same circumference uniform distribution, the pass sub-circular, choke divides wall thickness even, reducing length is little, external diameter to hollow billet requires lower, hollow billet end flatness requires lower, can satisfy the requirement of push-bench, has solved some defectives that previously used reducing mechanism exists simultaneously.
Claims (2)
1. steel pipe reducing mechanism, comprise hold-down support (1), be provided with left hinge (2) and right hinge (3) symmetrically at the two ends of hold-down support (1), it is characterized in that, be set with reducing at the end face of hold-down support (1) and eject oil cylinder (4), the top that ejects the output shaft of oil cylinder (4) in reducing is provided with center reducing module (5), the middle inside of left caliper swing arm (6) and left hinge (2) are hinged, the middle inside of right caliper body swing arm (15) and right hinge (3) are hinged, afterbody in left caliper swing arm (6) is provided with left opening and closing hinged block (7), in left opening and closing hinged block (7), be provided with left opening and closing hinge (8), afterbody in right caliper body swing arm (15) is provided with right opening and closing hinged block (14), in right opening and closing hinged block (14), be provided with right opening and closing hinge (13), cylinder bottom earrings (9) cross-under of caliper opening and closing oil cylinder (10) is on left opening and closing hinge (8), axle head earrings (12) cross-under of the output shaft (11) of caliper opening and closing oil cylinder (10) is on right opening and closing hinge (13), head in left caliper swing arm (6) is provided with left reducing module (17), head in right caliper body swing arm (15) is provided with right reducing module (16), center reducing module (5), left side reducing module (17) and right reducing module (16) are distributed on the same circumference.
2. a kind of steel pipe reducing according to claim 1 mechanism, it is characterized in that, in the hole shape of being formed by center reducing module (5), left reducing module (17) and right reducing module (16), be provided with the top of hollow billet (19), in hollow billet (19), be provided with push rod (18).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737945 CN203124581U (en) | 2012-12-28 | 2012-12-28 | Steel tube necking down mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220737945 CN203124581U (en) | 2012-12-28 | 2012-12-28 | Steel tube necking down mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203124581U true CN203124581U (en) | 2013-08-14 |
Family
ID=48932602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220737945 Expired - Fee Related CN203124581U (en) | 2012-12-28 | 2012-12-28 | Steel tube necking down mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203124581U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989913A (en) * | 2012-12-28 | 2013-03-27 | 太原通泽重工有限公司 | Steel tube necking mechanism |
-
2012
- 2012-12-28 CN CN 201220737945 patent/CN203124581U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102989913A (en) * | 2012-12-28 | 2013-03-27 | 太原通泽重工有限公司 | Steel tube necking mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130814 Termination date: 20211228 |