CN103541937A - Hydraulic enclosed loading system - Google Patents
Hydraulic enclosed loading system Download PDFInfo
- Publication number
- CN103541937A CN103541937A CN201310517562.9A CN201310517562A CN103541937A CN 103541937 A CN103541937 A CN 103541937A CN 201310517562 A CN201310517562 A CN 201310517562A CN 103541937 A CN103541937 A CN 103541937A
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- oil
- plunger pump
- loop
- pressure
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Abstract
The invention discloses a hydraulic enclosed loading system, which is mainly composed of an enclosed loading loop, an oil supplementation loop and a plunger pump oil drainage loop, wherein a plunger pump, a pressure sensor, a high pressure oil filter, a proportional overflow valve, a flow sensor and a cooler are arranged in the enclosed loading loop; a low-pressure oil filter, a one-way valve, an overflow valve, an oil tank, an oil filling pump and an oil absorption filter are arranged in the oil supplementation loop. The hydraulic enclosed loading system has the beneficial effects that the amount of lubricating oil is saved greatly as the enclosed loading form is adopted, the pressure of an outlet of the plunger pump can be controlled exactly as the proportional overflow valve is adopted, the loading power can be measured and loaded exactly and in real time as a flow sensor and a pressure transformer are adopted, and the flow in the enclosed loading loop is ensured to be sufficient as a small-power and small-flow oil supplementation system is adopted.
Description
technical field:
The present invention relates to hydraulic machinery technical field, refer in particular to a kind of hydraulic closed loading system.
background technique:
In machine driven system, in order to carry out loading test, need to load transmission system at present.At present, the load mode of transmission system mainly contains electric power sealing loading, hydraulic system loading, mechanical output sealing loading.Electric power sealing loads expensive, and mechanical output sealing is applicable to high-power single device and loads, and hydraulic system loads and is applicable to middle low power class, and load mode is flexible, is specially adapted to many output terminals and loads simultaneously.But a kind of Perfect in shape and function, powerful hydraulic loading system are not yet designed in hydraulic machinery field now.
summary of the invention:
The object of this invention is to provide a kind of hydraulic closed loading system, solve in mechanical load equipment now and lack in real time accurately, operate the problem that efficient, exquisite fuel-economizing, many output terminals such as load at the several functions advantage hydraulic system loading equipemtn simultaneously.
The object of the invention is to realize as follows: a kind of hydraulic closed loading system, mainly by enclosed loading loop, feed circuit, plunger pump leakage passage, formed, it is characterized in that: in enclosed, load in loop, be provided with plunger pump, pressure transducer, high pressure oil filter, proportional pressure control valve, flow transducer, cooler; In feed circuit, be provided with low pressure oil filter, one-way valve, relief valve, fuel tank, slippage pump, oil suction filter.
After the oil outlet passing ratio relief valve of plunger pump, cooler, be directly connected with the filler opening of plunger pump.
In closed circuit, the filler opening of plunger pump is directly connected with feed circuit.
In closed circuit, outlet of plunger pump place arranges pressure transmitter, and flowmeter is set after proportional pressure control valve.
The present invention has adopted enclosed loading form.The actuator drives such as gear-box loads plunger pump, plunger pump oil suction export lubricating oil to oil system from oil system, that is: and delivery side of pump is directly supplied with inlet opening after decompression, thus formation enclosed loading form.
The present invention has adopted proportional pressure control valve loading.By regulating proportional overflow valve opening, can control accurately the pressure of outlet of plunger pump.
The present invention has adopted flow transducer, pressure transmitter, can measure in real time the power that plunger pump loads.
It is its repairing that the present invention has adopted the oil-supplementing system of small-power, small flow.Plunger pump is when work, and the leakage that can produce lubricant oil, has adopted oil-supplementing system, guarantees that enclosed loads the flow abundance in loop.
The invention has the beneficial effects as follows, adopted enclosed loading form, the lubricants capacity of greatly having saved; Adopt proportional pressure control valve, can accurately control outlet of plunger pump pressure; Flow transducer, pressure transmitter have been adopted, the power that Measurement accuracy loads in real time; Adopted small-power, small flow oil-supplementing system, guaranteed that enclosed loads the flow abundance in loop.
accompanying drawing explanation:
Accompanying drawing is system architecture schematic diagram of the present invention;
In figure: enclosed loads loop A, feed circuit B, plunger pump leakage passage C, plunger pump 1, pressure transducer 2, high pressure oil filter 3, proportional pressure control valve 4, flow transducer 5, cooler 6, low pressure oil filter 7, one-way valve 8, relief valve 9, fuel tank 10, slippage pump 11, oil suction filter 12.
embodiment:
With reference to accompanying drawing, a kind of hydraulic closed loading system, mainly by enclosed loading loop A, feed circuit B, plunger pump leakage passage C, formed, it is characterized in that: in enclosed, load in the A of loop, be provided with plunger pump 1, pressure transducer 2, high pressure oil filter 3, proportional pressure control valve 4, flow transducer 5, cooler 6; In feed circuit B, be provided with low pressure oil filter 7, one-way valve 8, relief valve 9, fuel tank 10, slippage pump 11, oil suction filter 12.
The oil outlet passing ratio relief valve 4 of plunger pump 1, cooler 6 is rear is directly connected with the filler opening of plunger pump 1.
In closed circuit A, the filler opening of plunger pump 1 is directly connected with feed circuit B.
In closed circuit A, plunger pump 1 outlet port arranges pressure transmitter 2, and flowmeter 5 is set after proportional pressure control valve 4.
Hydraulic closed loads loop A working principle:
When mechanical transmission component turns round, 1 rotation of drive plunger pump, plunger pump 1 sucks lubricating oil from oil system, and through outlet output, lubricating oil makes lubricating oil clean by high pressure oil filter 3, lubricating oil passing ratio relief valve 4.By the aperture of resize ratio relief valve 4, adjust plunger pump 1 to the lubricating oil pressure in proportional pressure control valve 4 intervals, realize and loading.Lubricating oil is after proportional pressure control valve 4, and pressure drop, and take away and load the heat that power produces, after supercooler 6 is cooling, reenters in plunger pump 1.
1 the outlet at plunger pump is provided with pressure transducer 2, is provided with flow transducer 5 after proportional pressure control valve 4, and the conversion by flow and pressure can obtain loading accurately in real time power.
Feed circuit B working principle:
Plunger pump 1 is in operation to produce and reveals, and the lubricating oil of its leakage flows back into fuel tank 10 by leakage passage C, makes the oil mass of enclosed loading loop A less.The flow that loads loop A in order to supplement enclosed, is provided with feed circuit B.Slippage pump 11 is under the driving of motor, and by oil suction filter 12 oil suction from fuel tank 10, the oil outlet of slippage pump 11 is provided with one-way valve 8, prevents that the flow of oil of closed circuit A is to feed circuit B.Final by low-pressure filter 7, lubricating oil is exported in closed circuit A.
In the outlet port of slippage pump 11, be provided with relief valve 9, to control oil-supplementing system pressure.
Claims (4)
1. a hydraulic closed loading system, mainly by enclosed loading loop (A), feed circuit (B), plunger pump leakage passage (C), formed, it is characterized in that: in enclosed, load in loop (A), be provided with plunger pump (1), pressure transducer (2), high pressure oil filter (3), proportional pressure control valve (4), flow transducer (5), cooler (6); In feed circuit (B), be provided with low pressure oil filter (7), one-way valve (8), relief valve (9), fuel tank (10), slippage pump (11), oil suction filter (12).
2. according to a kind of hydraulic closed loading system described in right 1, it is characterized in that: after the oil outlet passing ratio relief valve (4) of plunger pump (1), cooler (6), be directly connected with the filler opening of plunger pump (1).
3. according to a kind of hydraulic closed loading system described in right 1, it is characterized in that: in closed circuit (A), the filler opening of plunger pump (1) is directly connected with feed circuit (B).
4. according to a kind of hydraulic closed loading system described in right 1, it is characterized in that: in closed circuit (A), plunger pump (1) outlet port arranges pressure transmitter (2), and flowmeter (5) is set after proportional pressure control valve (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310517562.9A CN103541937A (en) | 2013-10-29 | 2013-10-29 | Hydraulic enclosed loading system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310517562.9A CN103541937A (en) | 2013-10-29 | 2013-10-29 | Hydraulic enclosed loading system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103541937A true CN103541937A (en) | 2014-01-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310517562.9A Pending CN103541937A (en) | 2013-10-29 | 2013-10-29 | Hydraulic enclosed loading system |
Country Status (1)
| Country | Link |
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| CN (1) | CN103541937A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358722A (en) * | 2014-11-10 | 2015-02-18 | 武汉船用机械有限责任公司 | Hydraulic control system for ocean engineering crane |
| CN104500463A (en) * | 2014-11-28 | 2015-04-08 | 武汉船用机械有限责任公司 | Submersible-pump hydraulic control system |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201844923U (en) * | 2010-10-20 | 2011-05-25 | 哈尔滨通用液压机械制造有限公司 | Hydraulic loading system for airplane engine |
| CN102155442A (en) * | 2011-03-18 | 2011-08-17 | 湖南工程学院 | Control loop of adjustable hydraulic loader |
| CN203500144U (en) * | 2013-10-29 | 2014-03-26 | 中国船舶重工集团公司第七�三研究所 | Hydraulic closed loading system |
-
2013
- 2013-10-29 CN CN201310517562.9A patent/CN103541937A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201844923U (en) * | 2010-10-20 | 2011-05-25 | 哈尔滨通用液压机械制造有限公司 | Hydraulic loading system for airplane engine |
| CN102155442A (en) * | 2011-03-18 | 2011-08-17 | 湖南工程学院 | Control loop of adjustable hydraulic loader |
| CN203500144U (en) * | 2013-10-29 | 2014-03-26 | 中国船舶重工集团公司第七�三研究所 | Hydraulic closed loading system |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104358722A (en) * | 2014-11-10 | 2015-02-18 | 武汉船用机械有限责任公司 | Hydraulic control system for ocean engineering crane |
| CN104500463A (en) * | 2014-11-28 | 2015-04-08 | 武汉船用机械有限责任公司 | Submersible-pump hydraulic control system |
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| SE01 | Entry into force of request for substantive examination | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140129 |