A rotary cutter fluid pressure locking device
A technology of locking devices and disc shears, applied in shearing devices, shearing machine equipment, metal rolling, etc., can solve the problems of high cost of hydraulic locking linear guide rails, unreasonable installation positions, and high maintenance costs, etc., to achieve Solve the problem of permanent wear and the effect of inconvenient installation
Inactive Publication Date: 2009-07-15
CHINA NAT HEAVY MACHINERY RES INSTCO
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Problems solved by technology
[0004] Some of the existing disc shear opening locking functions are realized by linear guide rails with hydraulic locking functions, but the direct consequences are high cost and high maintenance costs.
[0005] For this reason, a simple hydraulic locking mechanism is applied to the adjustment of the opening of the trimming disc shears or crushing shears, which overcomes the problems of high cost and high maintenance costs of hydraulic locking linear guides
However, due to the unreasonable installation position and other problems, when the opening adjustment needs to be opened, there is a pressure difference in the pipeline, that is, the locking mechanism still has residual locking force, and the friction force of the plunger cylinder on the moving base is relatively large, resulting in Increased wear and tear
Method used
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[0016] Such as figure 1 As shown, the locking cylinder 1 of the locking device is fixed on both sides of the fixed base of the disc shears, and the locking cylinder 1 is connected to both sides of the fixed base of the disc shears operation and the fixed base of the transmission side through screws, and the locking The lock head 4 of the tight cylinder body 1 is corresponding to the lock cavity of the mobile base. The locking cylinder 1 has a piston cavity and an oil delivery channel 11, and the piston cavity and the oil delivery channel 11 form an L-shaped channel. The flange of the piston 6 presses the spring 2 into the piston cavity of the locking cylinder 1; the spring (2) is located between the piston (6) and the lock head (4). Two support rings 3 are mounted on the piston 6 . The piston sealing ring 5 installed on the piston 6 isolates the oil chamber of the cylinder body 1 from the lock head 4 . A flange cover 7 is arranged on the locking cylinder body 1 at the oppos...
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The invention belongs to the field of steel rolling equipment and is a frame locking device with adjusted edge cutting disc shears or chipping shears, that is, a hydraulic locking device for disc shears, which is characterized in that: a locking cylinder of the locking device (1) Fixed on both sides of the fixed base of the disc shears, the lock head (4) of the locking cylinder (1) corresponds to the lock cavity of the mobile base, and the hydraulic pipeline connects to the locking cylinder (1) through the interface (10) ), the hydraulic pipeline is connected with the oil inlet pipeline and the oil return pipeline respectively through the electromagnetic reversing valve; the oil delivery channel (11) of the locking cylinder (1) is perpendicular to the piston chamber, and the piston Cavity and oil delivery channel (11) constitute L-shaped channel, and one end of piston (6) in the piston cavity is connected with lock end (4). Its structure is simple, easy to maintain, can ensure the positive opening, lock and open, eliminate the frequent friction between the mobile base and the plunger cylinder to the greatest extent, and make the installation and maintenance of the device convenient.
Description
technical field [0001] The invention belongs to the field of steel rolling equipment and relates to a frame locking device with adjusted edge cutting disc shears or chipping shears, that is, a hydraulic locking device for disc shears. Background technique [0002] High-precision trimming disc shears are one of the core equipment widely used in metal strip finishing lines (rewinding, slitting, tension leveling, pickling and other units). The accuracy and stability of opening adjustment is one of the important indicators. In the process of disc shearing, the cutting edge of the disc shear is affected by factors such as the lateral thrust in the process of shearing the strip, the vibration of the equipment itself, and the impact on the cutting edge when the strip deviates abnormally. Affected, it is easy to cause changes in the opening degree, that is, the width of the sheared strip. The disc shears work under such harsh conditions for a long time, which will easily lead to da...
Claims
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IPC IPC(8): B23D19/00B21B15/00
Inventor 景群平张勇安王社昌周德奇崔卫华范海峰
Owner CHINA NAT HEAVY MACHINERY RES INSTCO