CN203500144U - Hydraulic closed loading system - Google Patents

Hydraulic closed loading system Download PDF

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Publication number
CN203500144U
CN203500144U CN201320669658.2U CN201320669658U CN203500144U CN 203500144 U CN203500144 U CN 203500144U CN 201320669658 U CN201320669658 U CN 201320669658U CN 203500144 U CN203500144 U CN 203500144U
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CN
China
Prior art keywords
oil
plunger pump
loading
loop
pressure
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Active
Application number
CN201320669658.2U
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Chinese (zh)
Inventor
于东洋
石玉权
刘永恒
赵勇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Harbin broad power technology development Co., Ltd.
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703th Research Institute of CSIC
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Priority to CN201320669658.2U priority Critical patent/CN203500144U/en
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Publication of CN203500144U publication Critical patent/CN203500144U/en
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Abstract

A hydraulic closed loading system is mainly composed of a closed loading loop, an oil supplementation loop and a plunger pump oil drainage loop. The hydraulic closed loading system is characterized in that a plunger pump, a pressure sensor, a high-pressure oil filter, a proportional overflow valve, a flow sensor and a cooler are arranged inside the closed loading loop, and a low-pressure oil filter, a one-way valve, an overflow valve, an oil tank, an oil supplementation pump and an oil absorption filter are arranged in the oil supplementation loop. The hydraulic closed loading system has the advantages that the closed loading mode is adopted so that the amount of lubricating oil can be greatly reduced; the proportional overflow valve is adopted so that the outlet pressure of the plunger pump can be controlled accurately; the flow sensor and a pressure transmitter are adopted so that the loading power can be measured accurately in real time; a small-power and small-flow oil supplementation system is adopted so that flow in the closed loading loop can be sufficient.

Description

A kind of hydraulic closed loading system
technical field:
The utility model relates to hydraulic machinery technical field, refers 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.
model utility content:
The purpose of this utility model is to provide a kind of hydraulic closed loading system, solves in mechanical load equipment now and lacks in real time accurately, operates the problem that efficient, exquisite fuel-economizing, many output terminals such as load at the several functions advantage hydraulic system loading equipemtn simultaneously.
The purpose of this utility model realizes 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 utility model 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 utility model has adopted proportional pressure control valve loading.By regulating proportional overflow valve opening, can control accurately the pressure of outlet of plunger pump.
The utility model has adopted flow transducer, pressure transmitter, can measure in real time the power that plunger pump loads.
It is its repairing that the utility model 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 beneficial effects of the utility model are, 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 1 is the utility model system architecture schematic diagram;
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. a kind of hydraulic closed loading system according to claim 1, 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. a kind of hydraulic closed loading system according to claim 1, is characterized in that: in closed circuit (A), the filler opening of plunger pump (1) is directly connected with feed circuit (B).
4. a kind of hydraulic closed loading system according to claim 1, 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).
CN201320669658.2U 2013-10-29 2013-10-29 Hydraulic closed loading system Active CN203500144U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320669658.2U CN203500144U (en) 2013-10-29 2013-10-29 Hydraulic closed loading system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320669658.2U CN203500144U (en) 2013-10-29 2013-10-29 Hydraulic closed loading system

Publications (1)

Publication Number Publication Date
CN203500144U true CN203500144U (en) 2014-03-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320669658.2U Active CN203500144U (en) 2013-10-29 2013-10-29 Hydraulic closed loading system

Country Status (1)

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CN (1) CN203500144U (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103541937A (en) * 2013-10-29 2014-01-29 中国船舶重工集团公司第七�三研究所 Hydraulic enclosed loading system
CN109342208A (en) * 2018-12-13 2019-02-15 中国工程物理研究院化工材料研究所 The accurate loading simulation equipment of the safety-type material static(al) of large-tonnage
CN109596436A (en) * 2019-01-14 2019-04-09 中国工程物理研究院化工材料研究所 The accurate driving method of static(al) of the accurate loading simulator of the safety-type static(al) of large-tonnage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103541937A (en) * 2013-10-29 2014-01-29 中国船舶重工集团公司第七�三研究所 Hydraulic enclosed loading system
CN109342208A (en) * 2018-12-13 2019-02-15 中国工程物理研究院化工材料研究所 The accurate loading simulation equipment of the safety-type material static(al) of large-tonnage
CN109342208B (en) * 2018-12-13 2021-04-06 中国工程物理研究院化工材料研究所 Large-tonnage safe type material static force accurate loading simulation equipment
CN109596436A (en) * 2019-01-14 2019-04-09 中国工程物理研究院化工材料研究所 The accurate driving method of static(al) of the accurate loading simulator of the safety-type static(al) of large-tonnage

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Date Code Title Description
GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right

Effective date of registration: 20150930

Address after: 150000 No. 35, Honghu Road, Yingbin Road, Harbin hi tech Development Zone, Heilongjiang, China

Patentee after: Harbin broad power technology development Co., Ltd.

Address before: 150000 Honghu Road, Daoli District, Heilongjiang, No. 35, Harbin

Patentee before: No.703 Inst. China Ship Heavy Industry Group Co.

C41 Transfer of patent application or patent right or utility model