An energy-saving vertical column ramming and pulling hydraulic system
A hydraulic system and energy-saving technology, which is applied in the field of hydraulic systems, can solve the problems of large installed power and large energy loss, and achieve the effects of reducing installed power, reducing pressure loss, and simplifying the hydraulic circuit
Active Publication Date: 2022-03-22
SHANDONG JIAOTONG UNIV
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Problems solved by technology
The hydraulic ramming and pulling device belongs to the stroke feedback control, the impact energy and the impact frequency are adjusted synchronously, and the installed power is large; the impact energy and the impact frequency of the pressure feedback control hydraulic ramming and pulling device can be adjusted independently, which reduces the installed power, but the hydraulic system of the two Both are valve control systems, throttling, speed and pressure regulation, resulting in large energy loss
Method used
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Embodiment Construction
[0020] Attached below figure 1 And embodiment further illustrate the present invention.
[0021] like figure 1 As shown, the present invention includes a fuel tank 1, a power take-off 2, a two-way variable pump 3, a first one-way valve 4, a one-way variable pump 5, a first safety valve 6, a first hydraulically controlled one-way valve 7, a second one-way Directional valve 8, second safety valve 9, ramming and pulling oil cylinder 10, second hydraulic control check valve 11, first hydraulic transformer 12, first manual reversing valve 13, hydraulic hammer 14, accumulator 15, second hydraulic pressure Transformer 16, second manual reversing valve 17, horizontal oil cylinder 18, third hydraulic transformer 19, third manual reversing valve 20, rotary oil cylinder 21, fourth hydraulic transformer 22, fourth manual reversing valve 23, tilting oil cylinder 24 , the third check valve 25, the fifth manual reversing valve 26, the third hydraulic control check valve 27, overflow valve ...
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An energy-saving column ramming and pulling hydraulic system mainly includes a two-way variable pump, a one-way variable pump, an overflow valve, a one-way valve, a safety valve, a hydraulically controlled one-way valve, a ramming and pulling cylinder, a manual reversing valve, a hydraulic transformer, a hydraulic Hammer, accumulator, horizontal cylinder, rotary cylinder, inclined cylinder, outrigger cylinder, etc.; two-way variable pump and tamping cylinder, etc. constitute a direct-drive volume control hydraulic drive system; one-way variable pump, overflow valve, accumulator The oil source of the constant voltage network is formed. The hydraulic hammer circuit controlled by the hydraulic transformer, the horizontal cylinder circuit, the rotary cylinder circuit and the inclined cylinder circuit are all connected to the constant voltage network, and the outrigger cylinder circuit is also connected to the constant voltage network. The present invention replaces throttling regulation with volume regulation, has little throttling loss, is easy to realize power matching, reduces system energy loss, improves system working efficiency, and greatly reduces installed power of the column rammer hydraulic system.
Description
(1) Technical field [0001] The invention relates to a hydraulic system, in particular to an energy-saving hydraulic system for tamping and pulling up a column. (2) Background technology [0002] High-grade highway guardrails and columns are often damaged by accidental vehicle impacts. Special equipment is required to pull out the damaged columns and tamp new columns into the roadbed to realize fast and efficient replacement of columns and reduce the impact on the operating efficiency of high-grade highways. Currently column replacement often adopts hydraulic ramming and pulling device (patent number: ZL992218322) and pressure feedback control hydraulic ramming and pulling device (patent number: ZL012690643). The hydraulic ramming and pulling device belongs to the stroke feedback control, the impact energy and the impact frequency are adjusted synchronously, and the installed power is large; the impact energy and the impact frequency of the pressure feedback control hydraulic...
Claims
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IPC IPC(8): F15B11/16F15B1/02F15B13/06E02D11/00E01F15/04
CPCF15B11/16F15B13/06F15B1/02E01F15/0484E02D11/00F15B2211/20546F15B2211/20576
Inventor 臧发业苑泉尹修杰孔祥臻戴汝泉
Owner SHANDONG JIAOTONG UNIV