A hydraulic shear driving device for thick strip shearing
A technology of driving device and hydraulic shear, which is applied in the field of hydraulic shear, can solve the problems of increasing equipment cost, uneven force on the guide columns on both sides, increasing equipment maintenance cost, etc., and achieve the effect of reducing the possibility of fracture
Active Publication Date: 2021-03-02
CHINA NAT HEAVY MACHINERY RES INSTCO
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Problems solved by technology
In the production of thick strips, in order to provide the large shearing force required for cutting thick strips, hydraulic cylinders of large specifications are often used, which increases the cost of equipment, and it is easy to have guide posts on both sides when cutting thick strips. Due to the asynchronous movement, the force is uneven, which finally leads to the accident of the guide column breaking, which increases the maintenance cost of the equipment
Method used
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[0016] The structural principle and working principle of the present invention will be described in detail below in conjunction with the accompanying drawings.
[0017] Such as figure 1 figure 2 Shown: a hydraulic shear driving device for thick strip shearing, including hinge shaft seat 1, hydraulic cylinder 2, crank block 3, guide sleeve 4, rack and guide post 5, gear 6, rotating shaft 7, bushing 8, shaft seat 9, lower knife rest 10, shearing blade 11, upper knife seat 12.
[0018] The hinge base 1 is fixedly installed on the vertical foundation, the hydraulic cylinder 2 is placed horizontally, the cylinder base of the hydraulic cylinder 2 is hinged with the hinge base 1, the cylinder head of the hydraulic cylinder 2 is hinged with one end of the crank block 3, and the other end of the crank block 3 is installed on On the rotating shaft 7, a flat key is built in to prevent relative rotation. The guide sleeve 4 has two left and right sides, which are installed on the fixed ...
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A hydraulic shear driving device for thick strip shearing, including a hydraulic cylinder placed horizontally, the cylinder seat and cylinder head of the hydraulic cylinder are respectively hinged with the twist shaft seat and the crank block, and the unhinged end of the crank block is installed on the rotating shaft. The two sides of the rotating shaft are connected to the rack guide column through the gear, and the rack guide column passes through the lower knife holder to connect with the upper knife seat at the upper end; a shearing blade is arranged between the upper and lower knife seats; The frame contact part is provided with a guide sleeve, and the guide sleeve is slidingly matched with the rack guide post; the arm of the crank block is larger than the radius of the pitch circle of the gear. When the thick strip is cut, the cylinder head of the hydraulic cylinder is pushed out, driving the crank block to rotate, and the gears on both sides and the rotating shaft rotate accordingly, driving the two rack guide posts meshing with the gears on both sides to move down along the guide sleeve, and The upper knife seat connected with the bar guide post falls to realize shearing; the invention has the characteristics of uniform force and reduced production cost.
Description
technical field [0001] The invention relates to the technical field of hydraulic shears for producing cold-rolled thick strip steel, in particular to a hydraulic shear driving device for thick strip shearing. Background technique [0002] In the production of cold-rolled strip steel, when encountering irregular strip ends or broken strips, it is necessary to use hydraulic shears to cut off the irregular strip steel. The hydraulic shears are composed of fixed cutting blades and shearing blades. When cutting , the shearing blade is driven and tangent to the fixed shearing blade to realize the shearing of the strip. The driving source of hydraulic shears is generally a hydraulic cylinder, but according to the different requirements for strip steel shearing, the driving mechanism used by hydraulic shears is also different. In the production of thick strips, in order to provide the large shearing force required for cutting thick strips, hydraulic cylinders of large specification...
Claims
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IPC IPC(8): B23D15/14
CPCB23D15/14
Inventor 谢磊张凯
Owner CHINA NAT HEAVY MACHINERY RES INSTCO