Multipass speed change hydraulic cylinder
A technology of hydraulic cylinders and large hydraulic cylinders, which is applied in the field of multi-stroke variable speed hydraulic cylinders, can solve problems such as large size, high failure rate, and complex structure, and achieve the effect of high-pressure work
Inactive Publication Date: 2018-07-03
黑龙江万向鹏程科技发展有限公司
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Problems solved by technology
At present, the rapid feed and high pressure work of the hydraulic cylinder are all realized by the external 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
Method used
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Embodiment 1
[0012] A kind of multi-pass transmission hydraulic cylinder, its composition comprises: Large hydraulic cylinder 4, described large hydraulic cylinder end is connected with end cover 9, and described large hydraulic cylinder interior is large piston rod 7, and described large piston rod The end is connected with the large piston 5, the large piston rod is connected with the small piston rod 3, the inside of the large piston rod is a small hydraulic cylinder 8, and the end of the small piston rod is connected with the flange 2, the The flange is fixed on the large hydraulic cylinder with bolts 1.
Embodiment 2
[0014] In the multi-pass transmission hydraulic cylinder described in Embodiment 1, an oil hole is opened on the surface of the large hydraulic cylinder, the oil hole is connected to a tee, and the inside of the small piston rod is a through hole.
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The invention relates to a multipass speed change hydraulic cylinder. At present, rapid feed and high-pressure operation of a hydraulic cylinder are realized by a peripheral hydraulic system, therefore, the defects of complex structure, high failure rate and high equipment cost exist, a complex hydraulic system is needed, thus, the whole equipment system is large, and the equipment is not convenient to install and use in small space. The multipass speed change hydraulic cylinder comprises a large hydraulic cylinder (4), wherein the end of the large hydraulic cylinder is connected with an end cover (9), a large piston rod (7) is arranged in the large hydraulic cylinder, the end of the large piston rod is connected with a large piston (5), the large piston rod is connected with a small piston rod (3), a small hydraulic cylinder (8) is arranged in the large piston rod, the end of the small piston rod is connected with a flange (2), and the flange is fixed to the large hydraulic cylinder by virtue of a bolt (1). The multipass speed change hydraulic cylinder is used for the multipass speed change hydraulic cylinder.
Description
Technical field: [0001] The invention relates to a multi-range transmission hydraulic cylinder. 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. Invention content: [0003] The object of the present invention is to provide a multi-range transmission hydraulic cylinder. [0004] Above-mentioned purpose real...
Claims
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IPC IPC(8): F15B15/14F15B15/20
CPCF15B15/1404F15B15/1428F15B2215/30
Inventor 不公告发明人
Owner 黑龙江万向鹏程科技发展有限公司