CN204646867U - A kind of hydraulic system of cylinder bench - Google Patents

A kind of hydraulic system of cylinder bench Download PDF

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Publication number
CN204646867U
CN204646867U CN201520323444.9U CN201520323444U CN204646867U CN 204646867 U CN204646867 U CN 204646867U CN 201520323444 U CN201520323444 U CN 201520323444U CN 204646867 U CN204646867 U CN 204646867U
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CN
China
Prior art keywords
valve
cylinder
hydraulic
oil pump
oil
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201520323444.9U
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Chinese (zh)
Inventor
张仕康
骆羲
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Hunan Jiaxing Hydraulic Machinery Manufacturing Co Ltd
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Hunan Jiaxing Hydraulic Machinery Manufacturing Co Ltd
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Priority to CN201520323444.9U priority Critical patent/CN204646867U/en
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Publication of CN204646867U publication Critical patent/CN204646867U/en
Expired - Fee Related legal-status Critical Current
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Abstract

The utility model relates to oil hydraulic cylinder testing apparatus field, specifically a kind of hydraulic system of cylinder bench, it comprises fuel tank is connected fuel tank low service system and high-pressure system with by oil screen, described low service system and high-pressure system merge by merging mouth, and being connected to electro-hydraulic reversing valve group, the interface that described electro-hydraulic reversing valve group is different is connected with and detects oil cylinder rodless cavity interface and detect cylinder rod chamber interface; The purpose of this utility model is to provide a kind of hydraulic system of cylinder bench, uses two groups of mini system superchargings, realizes High voltage output, and can reduce by cost, energy consumption reduces, and can also increase the scope of Pressure testing simultaneously.

Description

A kind of hydraulic system of cylinder bench
Technical field
The utility model relates to oil hydraulic cylinder testing apparatus field, specifically a kind of hydraulic system of cylinder bench.
Background technique
Oil hydraulic cylinder is one of main executive component of hydraulic system.Be widely used in all kinds of industries such as engineering machinery, mining machinery, automotive industry and intelligent machine at present, as excavator, hoist, high-altitude operation vehicle and robot building etc., its characteristic quality affects the service behaviour of hydraulic system to a great extent.Along with the develop rapidly of hydraulics, require also day by day to improve to oil hydraulic cylinder combination property, the tests and analysis of oil hydraulic cylinder has become the important means ensureing that hydraulic system normally works.
, all there is the cylinder bench of corresponding product in current domestic Hydraulic Industry factory and hydraulic pressure research institute, learns by inquiry, there are some problems in existing oil hydraulic cylinder, want to realize high pressure to detect, just must strengthen voltage supply system, thus add energy consumption and fund cost.
Model utility content
The purpose of this utility model is to provide a kind of hydraulic system of cylinder bench, uses two groups little pressure system superchargings, realizes High voltage output, and can reduce by cost, energy consumption reduces, and can also increase the scope of Pressure testing simultaneously.
In order to realize above object, the technical solution adopted in the utility model is: a kind of hydraulic system of cylinder bench, it comprises fuel tank (1) is connected fuel tank (1) low service system and high-pressure system with by oil screen (2), described low service system and high-pressure system merge by merging mouth (4), and being connected to electro-hydraulic reversing valve group (11), the interface that described electro-hydraulic reversing valve group (11) is different is connected with and detects oil cylinder rodless cavity interface (13) and detect cylinder rod chamber interface (14);
Described low service system comprises the first oil pump (5), and described the first oil pump (5) is connected with the first motor (3), and the first oil pump (5) is connected to merging mouth (4) through the first one-way valve (9);
Described high-pressure system comprises the second oil pump (20), and described the second oil pump (20) is connected with the second motor (19), and the second oil pump (20) is connected to pressurized cylinder (15), and described pressurized cylinder (15) is connected to and merges mouth (4).
Further, two position three way directional control valve (8) is connected with between described the first oil pump (5) and the first one-way valve (9); Described the first oil pump (5) is also connected with bi-bit bi-pass selector valve (7) and the first relief valve (6), and described bi-bit bi-pass selector valve (7) and the first relief valve (6) are all connected to fuel tank (1).
Further, three position four-way directional control valve B(17 is connected with) between described the second oil pump (20) and pressurized cylinder (15), described three position four-way directional control valve B(17) two other interface be connected to the second one-way valve (16) and fuel tank (1), described the second one-way valve (16) be connected to merge mouth (4); Described the second oil pump (20) is also connected with the second relief valve (18), and described the second relief valve (18) is connected to fuel tank (1).
Further, described electro-hydraulic reversing valve group (11) and detect oil cylinder rodless cavity interface (13), detect between cylinder rod chamber interface (14) and be all connected with Pilot operated check valve (12), and the hydraulic control interface of two Pilot operated check valves (12) is connected respectively to three position four-way directional control valve A(10) two interfaces above, described three position four-way directional control valve A(10) below two interfaces be connected to the first oil pump (5) and fuel tank (1).
The beneficial effects of the utility model are:
1, adopt single cover system to reach ultrahigh pressure to export, must use powerful motor and oil pump, cost is too high; And the utility model adopts high and low pressure system to cooperatively interact, reach the output of high pressure.
2, high and low pressure system is adopted to cooperatively interact, detection range increases, and oil cylinder is detected pressures mainly, and different pressure will configure one or more sets detection platform, and detection range of the present utility model can adapt to the detection of multiple different oil cylinder, and then user cost can be reduced.
3, the design of high-pressure system, has filled up the blank about the high-pressure system of oil cylinder detection on market.
Accompanying drawing explanation
Fig. 1 is a kind of schematic diagram of hydraulic system of cylinder bench.
Described in figure, label character is expressed as: 1, fuel tank; 2, oil screen; 3, the first motor; 4, mouth is merged; 5, the first oil pump; 6, the first relief valve; 7, bi-bit bi-pass selector valve; 8, two position three way directional control valve; 9, the first one-way valve; 10, three position four-way directional control valve A; 11, electro-hydraulic reversing valve group; 12, Pilot operated check valve; 13, oil cylinder rodless cavity interface is detected; 14, cylinder rod chamber interface is detected; 15, pressurized cylinder; 16, the second one-way valve; 17, three position four-way directional control valve B; 18, the second relief valve; 19, the second motor; 20, the second oil pump.
Embodiment
The technical solution of the utility model is understood better in order to make those skilled in the art; tie box accompanying drawing to be below described in detail the utility model; the description of this part is only exemplary and explanatory, should not have any restriction to protection domain of the present utility model.
As shown in Figure 1, concrete structure of the present utility model is: a kind of hydraulic system of cylinder bench, it comprises fuel tank 1 is connected fuel tank 1 low service system and high-pressure system with by oil screen 2, described low service system and high-pressure system merge by merging mouth 4, and being connected to electro-hydraulic reversing valve group 11, the interface that described electro-hydraulic reversing valve group 11 is different is connected with and detects oil cylinder rodless cavity interface 13 and detect cylinder rod chamber interface 14;
Described low service system comprises the first oil pump 5, and the first described oil pump 5 is connected with the first motor 3, and the first oil pump 5 is connected to merging mouth 4 through the first one-way valve 9;
Described high-pressure system comprises the second oil pump 20, and the second described oil pump 20 is connected with the second motor 19, and the second oil pump 20 is connected to pressurized cylinder 15, and described pressurized cylinder 15 is connected to and merges mouth 4.
Working principle is: when low pressure detects, only has low service system work, start the first motor 3, drive the first oil pump 5 to work, fluid enters oil screen 2 from fuel tank 1, through the first oil pump 5, electro-hydraulic reversing valve group 11 is entered into from merging mouth 4 more afterwards by the first one-way valve 9, enter into afterwards and detect cylinder rod chamber interface 14, then enter into electro-hydraulic reversing valve group 11 from detection oil cylinder rodless cavity interface 13, then get back to fuel tank 1.
When high pressure detects, low service system works together with high-pressure system, under the drive of the second motor 19, the second oil pump 20 works, and fluid enters oil screen 2 from fuel tank 1, enter into pressurized cylinder 15 and carry out supercharging, merge at the fluid merging mouth and low service system afterwards, then enter into electro-hydraulic reversing valve group 11, enter into afterwards and detect cylinder rod chamber interface 14, then enter into electro-hydraulic reversing valve group 11 from detection oil cylinder rodless cavity interface 13, then get back to fuel tank 1.
Adopt said structure and above-mentioned principle, low voltage experiment can be realized and also can realize Hi-pot test, the oil cylinder test of different pressures scope can be applicable to, not need to arrange multiple different test system for different oil cylinders, reach the effect of saving user cost; And during its testing high voltage, employing be that high and low pressure system coordinates and reaches high pressure, employing be all lower powered motor, and do not need high-power motor, low to the requirement of equipment, and lower powered energy consumption is relatively low, and then saved cost.
Preferably, two position three way directional control valve 8 is connected with between the first described oil pump 5 and the first one-way valve 9; The first described oil pump 5 is also connected with bi-bit bi-pass selector valve 7 and the first relief valve 6, and described bi-bit bi-pass selector valve 7 and the first relief valve 6 are all connected to fuel tank 1.
Two position three way directional control valve 8 reaches right position when low service system works, and enables fluid enter into the first one-way valve 9; When low service system does not work, be in left position, the fluid in oil circuit can flow into fuel tank 1; Bi-bit bi-pass selector valve 7 selector valve plays a part to regulate oil temperature, the effect of its adjustment pressure of the first relief valve 6.
Preferably, three position four-way directional control valve B17 is connected with between the second described oil pump 20 and pressurized cylinder 15, two other interface of described three position four-way directional control valve B17 is connected to the second one-way valve 16 and fuel tank 1, and the second described one-way valve 16 is connected to and merges mouth 4; The second described oil pump 20 is also connected with the second relief valve 18, and the second described relief valve 18 is connected to fuel tank 1.
When high-pressure system needs pressurized cylinder 15 to work, three position four-way directional control valve B17 is positioned at left position, when high-pressure system does not need pressurized cylinder 15 supercharging, three position four-way directional control valve B17 is positioned at right position, when high-pressure system does not work, three position four-way directional control valve B17 is positioned at meta, and the fluid in oil circuit gets back to fuel tank; Second relief valve 18 plays the effect regulating pressure.
Preferably, described electro-hydraulic reversing valve group 11 and detect oil cylinder rodless cavity interface 13, detect between cylinder rod chamber interface 14 and be all connected with Pilot operated check valve 12, and the hydraulic control interface of two Pilot operated check valves 12 is connected respectively to two interfaces above of three position four-way directional control valve A10, below described three position four-way directional control valve A10, two interfaces are connected to the first oil pump 5 and fuel tank 1.
The setting of Pilot operated check valve 12, can reduce disturbing factor, improves the effect of test; Simultaneously and three position four-way directional control valve A10 with the use of, realize normal oil return; Working principle is as follows, when fluid enters from detection cylinder rod chamber interface 14, now, the Pilot operated check valve 12 in left side can only unidirectionally enter, and the Pilot operated check valve 12 on right side can enter into electro-hydraulic reversing valve group 12 from detection cylinder rod chamber interface 13, this just needs three position four-way directional control valve A10 to coordinate, now, three position four-way directional control valve A10 is in left position, and fluid can enter into the Pilot operated check valve 12 on right side, and then Pilot operated check valve is become common pipeline, realize oil return, otherwise, be then in right position, realize the Pilot operated check valve oil return on right side; Be allow the fluid in pipeline flow back to fuel tank 1. in being in when not working
It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise which key element, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.
Apply specific case herein to set forth principle of the present utility model and mode of execution, the explanation of above example just understands method of the present utility model and core concept thereof for helping.The above is only preferred implementation of the present utility model, should be understood that, due to the finiteness of literal expression, and objectively there is unlimited concrete structure, for those skilled in the art, under the prerequisite not departing from the utility model principle, some improvement, retouching or change can also be made, also above-mentioned technical characteristics can be combined by rights; These improve retouching, change or combination, or the design of model utility and technological scheme are directly applied to other occasion without improving, and all should be considered as protection domain of the present utility model.

Claims (4)

1. the hydraulic system of a cylinder bench, it comprises fuel tank (1) is connected fuel tank (1) low service system and high-pressure system with by oil screen (2), it is characterized in that, described low service system and high-pressure system merge by merging mouth (4), and being connected to electro-hydraulic reversing valve group (11), the interface that described electro-hydraulic reversing valve group (11) is different is connected with and detects oil cylinder rodless cavity interface (13) and detect cylinder rod chamber interface (14);
Described low service system comprises the first oil pump (5), and described the first oil pump (5) is connected with the first motor (3), and the first oil pump (5) is connected to merging mouth (4) through the first one-way valve (9);
Described high-pressure system comprises the second oil pump (20), and described the second oil pump (20) is connected with the second motor (19), and the second oil pump (20) is connected to pressurized cylinder (15), and described pressurized cylinder (15) is connected to and merges mouth (4).
2. the hydraulic system of a kind of cylinder bench according to claim 1, is characterized in that, is connected with two position three way directional control valve (8) between described the first oil pump (5) and the first one-way valve (9); Described the first oil pump (5) is also connected with bi-bit bi-pass selector valve (7) and the first relief valve (6), and described bi-bit bi-pass selector valve (7) and the first relief valve (6) are all connected to fuel tank (1).
3. the hydraulic system of a kind of cylinder bench according to claim 1, it is characterized in that, three position four-way directional control valve B(17 is connected with) between described the second oil pump (20) and pressurized cylinder (15), described three position four-way directional control valve B(17) two other interface be connected to the second one-way valve (16) and fuel tank (1), described the second one-way valve (16) be connected to merge mouth (4); Described the second oil pump (20) is also connected with the second relief valve (18), and described the second relief valve (18) is connected to fuel tank (1).
4. the hydraulic system of a kind of cylinder bench according to claim 1, it is characterized in that, described electro-hydraulic reversing valve group (11) and detect oil cylinder rodless cavity interface (13), detect between cylinder rod chamber interface (14) and be all connected with Pilot operated check valve (12), and the hydraulic control interface of two Pilot operated check valves (12) is connected respectively to three position four-way directional control valve A(10) two interfaces above, described three position four-way directional control valve A(10) below two interfaces be connected to the first oil pump (5) and fuel tank (1).
CN201520323444.9U 2015-05-19 2015-05-19 A kind of hydraulic system of cylinder bench Expired - Fee Related CN204646867U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520323444.9U CN204646867U (en) 2015-05-19 2015-05-19 A kind of hydraulic system of cylinder bench

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520323444.9U CN204646867U (en) 2015-05-19 2015-05-19 A kind of hydraulic system of cylinder bench

Publications (1)

Publication Number Publication Date
CN204646867U true CN204646867U (en) 2015-09-16

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Family Applications (1)

Application Number Title Priority Date Filing Date
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105402205A (en) * 2015-12-25 2016-03-16 江苏恒立液压有限公司 Oil cylinder loading loop simulation test device
CN105822623A (en) * 2016-04-27 2016-08-03 安徽合力股份有限公司 Hydraulic testing system for hydraulic oil cylinder detection
CN106151128A (en) * 2016-08-22 2016-11-23 安阳市三兴机械工业有限责任公司 Digital display type high-low pump riveting machine Hydraulic Station and riveting process

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105402205A (en) * 2015-12-25 2016-03-16 江苏恒立液压有限公司 Oil cylinder loading loop simulation test device
CN105822623A (en) * 2016-04-27 2016-08-03 安徽合力股份有限公司 Hydraulic testing system for hydraulic oil cylinder detection
CN106151128A (en) * 2016-08-22 2016-11-23 安阳市三兴机械工业有限责任公司 Digital display type high-low pump riveting machine Hydraulic Station and riveting process
CN106151128B (en) * 2016-08-22 2018-06-01 安阳市三兴机械工业有限责任公司 Digital display type high-low pump riveting machine hydraulic station and riveting process

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C14 Grant of patent or utility model
GR01 Patent grant
CF01 Termination of patent right due to non-payment of annual fee
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20150916

Termination date: 20180519