Double-speed hydraulic cylinder
A technology of hydraulic cylinder and main hydraulic cylinder, applied in the field of two-speed hydraulic cylinder, can solve the problems of unfavorable equipment installation and use, complex peripheral hydraulic system, complex hydraulic system structure, etc.
Inactive Publication Date: 2012-01-18
武艳梅
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Problems solved by technology
[0003] The purpose of the present invention is to provide a two-speed hydraulic cylinder with fast and slow speeds, which overcomes the need for a more complicated external hydraulic system when the existing hydraulic cylinders are in the fast and slow working states, and the resulting The structure of the hydraulic system is complex, the failure rate is high, the cost of the equipment is high, and it is not conducive to the installation and use of the equipment in a small space.
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[0008] In the figure, the two-speed hydraulic cylinder includes bolt 1, flange 2, auxiliary piston rod 3, through hole 4, main hydraulic cylinder 5, main piston 6, main piston rod 7, auxiliary hydraulic cylinder 8, end cover 9 , the main piston 6 is fixedly connected with the main piston rod 7, and the main piston 6 and the main piston rod 7 are installed in the main hydraulic cylinder 5, and the mouth of the main hydraulic cylinder 5 is fixedly equipped with an end cover 9, and the main piston rod 7 is formed with an auxiliary hydraulic cylinder 8, the auxiliary piston rod 3 passes through the bottom of the hydraulic cylinder 5, and is fixedly installed in the auxiliary hydraulic cylinder 8, and a through hole 4 is provided in the middle of the auxiliary piston rod 3, and the outer end of the auxiliary piston rod 3 It is fixedly installed together with the flange 2, and the flange 2 is fixedly connected with the bottom of the hydraulic cylinder 5 through the fixing bolt 1....
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The invention discloses a double-speed hydraulic cylinder. A main piston is fixedly connected with a main piston rod, the main piston and the main piston rod are installed in a main hydraulic cylinder, an end cover is fixedly installed at the opening of the main hydraulic cylinder, an auxiliary hydraulic cylinder is arranged in the middle of the main piston rod, an auxiliary piston rod is fixedly installed in the auxiliary hydraulic cylinder after passing through the bottom of the hydraulic cylinder, a through hole is arranged in the middle of an auxiliary piston rod, the outer end of the auxiliary piston rod and a flange are fixedly installed together, and the flange is fixedly connected with the bottom of the hydraulic cylinder through a fastening bolt. Hydraulic oil flows through the middle through hole of the auxiliary piston rod, and the effective sectional area of the auxiliary hydraulic cylinder is smaller, therefore, the main piston rod can be pushed to feed quickly. Pressure oil is introduced from a piston cylinder of the main hydraulic cylinder when the double-speed hydraulic cylinder works. Because the effective work sectional area of the main hydraulic cylinder is bigger, the work with higher pressure can be realized.
Description
technical field [0001] The invention relates to a hydraulic component technology, in particular to a double-speed hydraulic cylinder with fast and slow speeds. Background technique [0002] The hydraulic cylinder is the working and executive element in the hydraulic system. In the hydraulic system, in order to improve the work efficiency, the piston rod of the hydraulic cylinder needs to have a high movement speed when it is close to the workpiece; pressure. At present, the rapid feed and high pressure work of the hydraulic cylinder are all realized by the peripheral hydraulic system, so there are shortcomings such as complex structure, high failure rate, and high equipment cost; at the same time, due to the need A complex hydraulic system, so the entire equipment system is relatively large, which is not conducive to the installation and use of equipment in a small space. Contents of the invention [0003] The purpose of the present invention is to provide a ...
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Inventor 武艳梅
Owner 武艳梅