CN107081464B - Hydraulic shear driving device for thick belt shearing - Google Patents
Hydraulic shear driving device for thick belt shearing Download PDFInfo
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- CN107081464B CN107081464B CN201710429414.XA CN201710429414A CN107081464B CN 107081464 B CN107081464 B CN 107081464B CN 201710429414 A CN201710429414 A CN 201710429414A CN 107081464 B CN107081464 B CN 107081464B
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- Prior art keywords
- rack guide
- guide post
- crank block
- shearing
- rotating shaft
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
- B23D15/00—Shearing machines or shearing devices cutting by blades which move parallel to themselves
- B23D15/12—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor
- B23D15/14—Shearing machines or shearing devices cutting by blades which move parallel to themselves characterised by drives or gearings therefor actuated by fluid or gas pressure
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shearing Machines (AREA)
Abstract
A hydraulic shear driving device for thick belt shearing comprises a hydraulic cylinder which is horizontally placed, wherein a cylinder seat and a cylinder head of the hydraulic cylinder are respectively hinged with a winch seat and a crank block, the non-hinged end of the crank block is arranged on a rotating shaft, two sides of the rotating shaft are connected with a rack guide post through gears, and the rack guide post penetrates through a lower tool rest and is connected with an upper tool apron at the upper end; a shearing blade is arranged between the upper tool apron and the lower tool apron; a guide sleeve is arranged at the contact part of the rack guide post and the lower tool rest and is in sliding fit with the rack guide post; the force arm of the crank block is larger than the radius of the reference circle of the gear. When the thick belt is sheared, the cylinder head of the hydraulic cylinder is pushed out to drive the crank block to rotate, the gears on the two sides and the rotating shaft rotate along with the crank block to drive the two rack guide pillars meshed with the gears on the two sides to move downwards along the guide sleeve, and the upper cutter seat connected with the rack guide pillars falls down to realize shearing; the invention has the characteristics of uniform stress and production cost reduction.
Description
Technical Field
The invention relates to the technical field of hydraulic shears for cold rolling thick strip steel production, in particular to a hydraulic shear driving device for thick strip shearing.
Background
In the production of cold-rolled strip steel, when an irregular strip head and an irregular strip tail are met or a strip is broken, the irregular strip steel needs to be cut by using a hydraulic shear, the hydraulic shear consists of a fixed shear blade and a shear blade, and during shearing, the shear blade is tangent to the fixed shear blade after being driven to shear the strip steel. The driving source of the hydraulic shears is generally a hydraulic cylinder, but the driving mechanism used by the hydraulic shears is different according to different requirements of strip steel shearing. In the production of thick belts, in order to provide large shearing force required for shearing the thick belts, hydraulic cylinders with large specifications are often used, so that the equipment cost is increased, uneven stress is easily generated due to asynchronous actions of guide columns on two sides during the shearing of the thick belts, finally, the accident of guide column fracture is caused, and the maintenance cost of the equipment is increased. In order to solve the problems in the thick band shearing process and reduce the production cost of thick band steel, the invention needs to invent a hydraulic shear driving mechanism suitable for thick band shearing.
Disclosure of Invention
In order to solve the defects of the prior art, the invention aims to provide a hydraulic shear driving device for thick belt shearing, which provides large shearing force, reduces equipment cost, and has the characteristics of uniform stress and production cost reduction.
In order to achieve the purpose, the invention adopts the technical scheme that:
a hydraulic shear driving device for thick belt shearing comprises a hydraulic cylinder 2 which is horizontally placed, wherein a cylinder base and a cylinder head of the hydraulic cylinder 2 are respectively hinged with a hinge shaft base 1 and a crank block 3, the other end of the crank block 3 is installed on a rotating shaft 7, two ends of the rotating shaft 7 are respectively connected with two rack guide posts 5 through two gears 6, and the rack guide posts 5 penetrate through a lower tool rest 10 and are connected with an upper tool apron 12 at the upper end; a shearing blade 11 is respectively arranged below the upper tool apron 12 and above the lower tool rest 10;
a guide sleeve 4 is arranged at the contact part of the rack guide post 5 and the lower tool rest 10, and the guide sleeve 4 is fixed on the lower tool rest 10 and is in sliding fit with the rack guide post 5; the moment arm of the crank block 3 is larger than the radius of the reference circle of the gear 6.
The gear 6 is meshed with the rack guide post 5 through a straight tooth at the lower part of the rack guide post 5.
Two ends of the rotating shaft 7 are arranged in an inner hole of a shaft seat 9 sleeved with a shaft sleeve 8.
The shaft seat 9 is divided into a left shaft seat and a right shaft seat and is fixed on a foundation.
The hinge shaft seat 1 is fixedly arranged on a vertical foundation.
A flat key is arranged in the rotating shaft 7.
The invention has the beneficial effects that:
according to the invention, the moment arm of the crank block 3 is larger than the reference circle radius of the gear 6, the shearing force provided by the hydraulic cylinder 2 is amplified by the driving mechanism, so that the hydraulic cylinder 2 with a smaller specification can be used for providing a larger shearing force in the production of a thick belt, and the meshing transmission of the gears 6 at two sides and the rack guide posts 5 at two sides enables the rack guide posts 5 at two sides to move strictly synchronously, so that the possibility of breakage of the rack guide posts 5 is greatly reduced.
Drawings
Fig. 1 is a side view of the overall structure of the present invention.
Fig. 2 is a front view of the overall structure of the present invention.
Detailed Description
The construction and operation of the present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 1 and 2: a hydraulic shear driving device for thick belt shearing comprises a hinge shaft seat 1, a hydraulic cylinder 2, a crank block 3, a guide sleeve 4, a rack guide post 5, a gear 6, a rotating shaft 7, a shaft sleeve 8, a shaft seat 9, a lower tool rest 10, a shearing blade 11 and an upper tool apron 12.
The hinge seat 1 is fixedly arranged on a vertical basis, the hydraulic cylinder 2 is horizontally arranged, a cylinder seat of the hydraulic cylinder 2 is hinged with the hinge seat 1, a cylinder head of the hydraulic cylinder 2 is hinged with one end of a crank block 3, the other end of the crank block 3 is arranged on a rotating shaft 7, a flat key is arranged in the flat key to prevent relative rotation, a left guide sleeve 4 and a right guide sleeve 4 are arranged on a fixed lower tool rest 10 and are in sliding fit with a rack guide post 5, the rack guide post 5 is divided into a left part and a right part, the upper part of the rack guide post 5 is connected with an upper tool apron 12 which is responsible for shearing, a straight tooth is processed at the lower part of the rack guide post 5 and is meshed with a gear 6, the gear 6 is divided into a left part and a right part which are arranged on the rotating shaft 7, the flat key is arranged in the rotating shaft 7 to prevent relative rotation, two ends of the rotating shaft 7 are arranged, the shaft seat 9 is divided into a left shaft and a right shaft which are fixed on the foundation.
The working principle of the invention is as follows:
when the thick belt is sheared, the cylinder head of the hydraulic cylinder 2 is pushed out to drive the crank block 3 to rotate, the gears 6 on the two sides and the rotating shaft 7 rotate along with the crank block, the two rack guide pillars 5 meshed with the gears 6 on the two sides are driven to move downwards along the guide sleeve 4, and the upper tool apron 12 connected with the rack guide pillars 5 falls down to realize shearing. Because the moment arm of the crank block 3 is larger than the reference circle radius of the gear 6, the shearing force provided by the hydraulic cylinder 2 is amplified by the driving mechanism, so that the hydraulic cylinder 2 with smaller specification can be used for providing larger shearing force in the production of thick belts, and the meshing transmission of the gears 6 at two sides and the rack guide posts 5 at two sides ensures that the rack guide posts 5 at two sides are strictly synchronous in motion, thereby greatly reducing the possibility of breakage of the rack guide posts 5.
Claims (4)
1. A hydraulic shear driving device for thick belt shearing is characterized by comprising a hydraulic cylinder (2) which is horizontally placed, wherein a cylinder seat and a cylinder head of the hydraulic cylinder (2) are respectively hinged with a hinge shaft seat (1) and a crank block (3), the non-hinged end of the crank block (3) is arranged on a rotating shaft (7), two ends of the rotating shaft (7) are respectively connected with a rack guide post (5) through a gear (6), and the rack guide post (5) penetrates through a lower tool rest (10) and is connected with an upper tool rest (12) at the upper end; a shearing blade (11) is arranged below the upper cutter holder (12) and above the lower cutter holder (10);
a guide sleeve (4) is arranged on the contact part of the rack guide post (5) and the lower tool rest (10), and the guide sleeve (4) is in sliding fit with the rack guide post (5); the moment arm of the crank block (3) is larger than the radius of the reference circle of the gear (6);
the gear (6) is meshed with the rack guide post (5) through a straight tooth at the lower part of the rack guide post (5);
two ends of the rotating shaft (7) are arranged in an inner hole of a shaft seat (9) sleeved with a shaft sleeve (8).
2. A hydraulic shear drive as claimed in claim 1, characterized in that the axle holder (9) is fixed to the foundation.
3. A hydraulic shear drive for thick strip shearing as claimed in claim 1, characterized in that the hinge seats (1) are fixedly mounted on a vertical foundation.
4. A hydraulic shear drive for thick strip shearing as defined in claim 1, wherein said rotary shaft (7) is keyed flat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710429414.XA CN107081464B (en) | 2017-06-08 | 2017-06-08 | Hydraulic shear driving device for thick belt shearing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710429414.XA CN107081464B (en) | 2017-06-08 | 2017-06-08 | Hydraulic shear driving device for thick belt shearing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107081464A CN107081464A (en) | 2017-08-22 |
| CN107081464B true CN107081464B (en) | 2021-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710429414.XA Active CN107081464B (en) | 2017-06-08 | 2017-06-08 | Hydraulic shear driving device for thick belt shearing |
Country Status (1)
| Country | Link |
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| CN (1) | CN107081464B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110666851A (en) * | 2019-10-12 | 2020-01-10 | 盐城市智成机械制造有限公司 | Oil cylinder and guide post integrated soft material cutting machine |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB706320A (en) * | 1950-08-17 | 1954-03-31 | Charles Joseph Rhodes | Overload release devices for hydraulic bending machines and the like |
| DE1402356B2 (en) * | 1958-11-19 | 1970-01-08 | Eumuco AG für Maschinenbau, 5090 Leverkusen | Billet shears with hydraulic drive |
| FR2323478A1 (en) * | 1975-09-10 | 1977-04-08 | Jambon Anciens Ateliers H | HYDRAULIC PRESS FOR SHEARING OR CUTTING OPERATION |
| CN201208665Y (en) * | 2008-01-08 | 2009-03-18 | 洛阳清大机械环保设备有限公司 | Rotary shaft lever reinforcement type hydraulic plate-shearing machine |
| CN102390059A (en) * | 2011-09-23 | 2012-03-28 | 李世龙 | Plate cutting machine |
| CN105729088A (en) * | 2014-12-10 | 2016-07-06 | 西安嘉昱知识产权运营管理有限公司 | Manual lever type pressing machine |
| CN106424891B (en) * | 2016-12-12 | 2018-11-20 | 安徽鲲鹏装备模具制造有限公司 | A kind of belt end trimming takes the door shell cutting machine of long function |
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2017
- 2017-06-08 CN CN201710429414.XA patent/CN107081464B/en active Active
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| CN107081464A (en) | 2017-08-22 |
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