CN2224684Y - Internal-external differential hydraulic pile hammer sequential direction changing oil path - Google Patents
Internal-external differential hydraulic pile hammer sequential direction changing oil path Download PDFInfo
- Publication number
- CN2224684Y CN2224684Y CN 95230499 CN95230499U CN2224684Y CN 2224684 Y CN2224684 Y CN 2224684Y CN 95230499 CN95230499 CN 95230499 CN 95230499 U CN95230499 U CN 95230499U CN 2224684 Y CN2224684 Y CN 2224684Y
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- oil
- valve
- oil cylinder
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- oil circuit
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Abstract
The utility model belongs to the oil paths of a hydraulic pile hammer of building trade, particularly an internal-external differential hydraulic pile hammer sequential direction changing oil path. An internal and an external differential oil paths are respectively formed with a nonreturn valve in an oil cylinder, a two-position four-way electro-liquid valve with a connection in series, an upper cavity of the oil cylinder, and a lower cavity of the oil cylinder. The internal and the external differential oil paths change directions through the two-position four-way electro-liquid valve. The opening and closing of the nonreturn valve is controlled, the pressure and the flow capacity of a hydraulic power source are all transferred to the running of an actuator element piston, the efficiency of the oil path is high, and striking frequency is rapid. The utility model is suitable for the internal and external differential hydraulic pile hammer with a weight from 2.5 t to 14 t.
Description
The utility model belongs to the oil circuit of building trade hydraulic pile hammer, particularly a kind of inside and outside differential hydraulic pile monkey order reversing oil circuit.
Pile monkey is an equipment commonly used in building trade and the damming works, can be divided into hydraulic pile hammer and internal combustion pile monkey, and hydraulic pile hammer is power with the hydraulic drive owing to do not use fuel oil to be power, have simple in structure, the characteristics that are easy to control.The hydraulic pile hammer of particularly inside and outside combined differential, the oil cylinder volume is little, hitting power is big, oil extraction has obtained extensive use rapidly, but the check valve in inside and outside differential hydraulic oil circuit links to each other with one-way throttle valve, the control check valve is opened, is closed, do not match with the oil cylinder impulse stroke, influenced the striking frequency of hydraulic pile hammer.
The purpose of this utility model is to overcome above technical deficiency, and a kind of hydraulic circuit is provided, and control is simple, striking frequency height, the inside and outside differential hydraulic pile monkey order reversing oil circuit that impulsive force is big.
Task of the present utility model is, inside and outside differential hydraulic pile monkey order reversing oil circuit, by check valve oil cylinder is divided into the upper and lower chamber that communicates, links to each other with the oil pump output circuit, enter the oil cylinder epicoele and form outer differential oil circuit with in the continuous oil circuit of epicoele the two-position four-way electro hydraulic valve being set; One-way throttle valve series connection two-position four-way electro hydraulic valve, overflow valve, two-position two-way solenoid valve, accumulator are set in the oil circuit of oil cylinder cavity of resorption discharges oil circuit with the oil pump mouth and links to each other and make the oil of oil cylinder cavity of resorption enter epicoele by this check valve, upper and lower two chambeies of oil cylinder are communicated, differential oil line in forming descends pile monkey fast.
Inside and outside differential hydraulic pile monkey order reversing oil circuit, two-position four-way electro hydraulic valve by in-oil cylinder check valve and serial connection, upper and lower chamber with oil cylinder forms inside and outside differential oil line respectively, commutate by the two-position four-way electro hydraulic valve, the control check valve is opened, is closed, make the pressure and the flow of hydraulic power source all pass to the operation of executive component piston, oil circuit efficient height, striking frequency is fast.
Specify with by way of example below in conjunction with accompanying drawing.
Fig. 1 shows inside and outside differential hydraulic pile monkey order reversing oil circuit schematic diagram.
Fig. 2 shows inside and outside differential hydraulic pile monkey order reversing oil circuit oil cylinder control schematic diagram.
1-fuel tank among the figure; The 2-oil filter; The 3-oil pump; The 4-check valve; The 5-overflow valve; The 6-two-position two-way solenoid valve; The 7-accumulator; The 8-one-way throttle valve; 9-two-position four-way electro hydraulic valve; 10-two-position four-way electro hydraulic valve; The 11-check valve; The 12-piston; The 13-oil cylinder; The 14-tup; 15-is near switch; The 16-piston rod; 17-draining hole; The 11-1-sealing ring; The 11-2-circlip; The 11-3-limit base; The 11-4-spool; The 11-5-spring; The 11-6-screw,
With reference to Fig. 1, Fig. 2, inside and outside differential hydraulic pile monkey order reversing oil circuit, by check valve (11) with oil cylinder (13) be divided into communicate on, following working chamber, by check valve (11) with oil cylinder (13) be divided into communicate on, following working chamber, two-position four-way electro hydraulic valve (10) the differential oil circuit outside the formation that links to each other with the output circuit of oil pump (3) is set in the oil circuit that epicoele links to each other, the discharge oil circuit that one-way throttle valve (8) the series connection same oil pump of two-position four-way electro hydraulic valve (9) (3) is set in the oil circuit of oil cylinder (13) cavity of resorption link to each other form in differential oil line, the piston (12) that moves up and down is arranged in the oil cylinder (13), in piston (12) peripheral groove sealing ring (16) is arranged, sealing keeps oil cylinder (13) oil pressure, piston rod (16) and piston (12) pass through thread connection, and fixing with screw (11-6), piston rod (15) other end and tup (14) connect.The upper and lower motion of piston (12), limit base (11-3) are fixed in piston (12) valve seat.By circlip (11-2) locking, limit base (11-2) upper end has oilhole, has draining hole (17) in the piston rod (16), communicate by the same fuel tank of oil pipe (1), tup (14) bottom of travel is connected near switch (15), and when moving to the bottom, contact commutates near switch (15).
Oil pump (3) pumps into hydraulic oil in the fuel tank (1) by oil filter (2) when (1), working, when two-position two-way solenoid valve (6) energising, system's build-up pressure, enter accumulator (7) by check valve (4) one road hydraulic oil, another road hydraulic oil enters oil cylinder (13) cavity of resorption through two-position four-way electro hydraulic valve (9), tup (14) is mentioned, and oil cylinder (13) epicoele hydraulic oil enters fuel tank by two-position four-way electro hydraulic valve (10).
(2), after piston (12) is up to oil cylinder (13) top, two-position four-way electro hydraulic valve (10) commutation, the pressure oil that accumulator (7) and oil pump (3) are discharged enters oil cylinder (13) epicoele, realizes outer differential.And open check valve (11), and upper and lower two chambeies of oil cylinder are communicated, differential in having realized, tup (14) is descended fast.
(3), when tup (14) contacts near switch (15) two-position four-way electro hydraulic valve (9), (10) outage commutation, the hydraulic oil that oil pump is discharged enters accumulator (7), the quick step-down of the interior hydraulic oil of oil cylinder (13), by two-position four-way electro hydraulic valve (9), (10) the defeated oil sump tank (1) of another oil circuit stays for some time, when the elastic force of the spring (11-5) in the check valve (11) overcomes the pressure of hydraulic oil in the oil cylinder (13), spring (11-5) return, differential oil line makes in oil cylinder (13) formation in closing, following two chambeies, at this moment two-position four-way electro hydraulic valve (9) energising, pressure oil enters oil cylinder (13) cavity of resorption by two-position four-way electro hydraulic valve (9), another road input accumulator (7), piston (12) is up, tup (14) is mentioned, and repeats above-mentioned (1) step action, the pile monkey continuous operation.
Inside and outside differential hydraulic pile monkey order reversing oil circuit, form inside and outside differential oil line by the two-position four-way electro hydraulic valve of in-oil cylinder check valve and serial connection respectively with the upper and lower chamber of oil cylinder, has oil cylinder efficient height, characteristics such as blow efficiency is fast, operating frequency is 25-60r/min, impact energy is 40-230KJ, is applicable to the inside and outside differential hydraulic pile monkey of 2.5-14t.
Claims (2)
1. differential hydraulic pile monkey order reversing oil circuit inside and outside a kind, oil cylinder (13) is divided into the upper and lower chamber that communicates by check valve (11), in the oil circuit that links to each other with epicoele two-position four-way electro hydraulic valve (10) is set and links to each other with oil pump (3) output circuit, it is continuous to it is characterized in that being provided with in the oil circuit of same oil cylinder (13) cavity of resorption the connect discharge oil circuit of two-position four-way electro hydraulic valve (9), overflow valve (5), two-position two-way solenoid valve (6), the same oil pump of accumulator (7) (3) of one-way throttle valve (8);
2. a kind of inside and outside differential hydraulic pile monkey order reversing oil circuit according to claim 1, oil cylinder (13) is divided into the upper and lower working chamber that communicates by check valve (11), two-position four-way electro hydraulic valve (10) is set in the oil circuit that epicoele links to each other links to each other with the output circuit of oil pump (3) and form outer differential oil circuit, it is characterized in that being provided with in the oil circuit of same oil cylinder (13) cavity of resorption the interior differential oil line of the continuous formation of discharge oil circuit of one-way throttle valve (8) the series connection same oil pump of two-position four-way electro hydraulic valve (9) (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95230499 CN2224684Y (en) | 1995-03-14 | 1995-03-14 | Internal-external differential hydraulic pile hammer sequential direction changing oil path |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95230499 CN2224684Y (en) | 1995-03-14 | 1995-03-14 | Internal-external differential hydraulic pile hammer sequential direction changing oil path |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2224684Y true CN2224684Y (en) | 1996-04-17 |
Family
ID=33875330
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95230499 Expired - Fee Related CN2224684Y (en) | 1995-03-14 | 1995-03-14 | Internal-external differential hydraulic pile hammer sequential direction changing oil path |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2224684Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655115A (en) * | 2009-08-27 | 2010-02-24 | 刘放 | Hydraulic cylinder with sequence valve |
| CN104234015A (en) * | 2014-10-01 | 2014-12-24 | 高田华 | Hydraulically-controlled multipurpose water conservancy dam and application method thereof |
| CN105019455A (en) * | 2015-08-17 | 2015-11-04 | 中机锻压江苏股份有限公司 | Inner impact type pipe-driven pile hammer |
| CN106593996A (en) * | 2016-12-24 | 2017-04-26 | 上海祯驰电气设备有限公司 | Control oil cylinder material conveying method |
| CN108239978A (en) * | 2018-03-30 | 2018-07-03 | 江苏巨威机械有限公司 | Differential type hydraulic pile hammer |
-
1995
- 1995-03-14 CN CN 95230499 patent/CN2224684Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101655115A (en) * | 2009-08-27 | 2010-02-24 | 刘放 | Hydraulic cylinder with sequence valve |
| CN101655115B (en) * | 2009-08-27 | 2013-03-27 | 刘放 | Hydraulic cylinder with sequence valve |
| CN104234015A (en) * | 2014-10-01 | 2014-12-24 | 高田华 | Hydraulically-controlled multipurpose water conservancy dam and application method thereof |
| CN104234015B (en) * | 2014-10-01 | 2016-01-20 | 杭州永济水利科技有限公司 | A kind of water conservancy hydraulic control multipurpose dam and using method thereof |
| CN105019455A (en) * | 2015-08-17 | 2015-11-04 | 中机锻压江苏股份有限公司 | Inner impact type pipe-driven pile hammer |
| CN106593996A (en) * | 2016-12-24 | 2017-04-26 | 上海祯驰电气设备有限公司 | Control oil cylinder material conveying method |
| CN108239978A (en) * | 2018-03-30 | 2018-07-03 | 江苏巨威机械有限公司 | Differential type hydraulic pile hammer |
| CN108239978B (en) * | 2018-03-30 | 2023-11-17 | 江苏巨威机械有限公司 | Differential hydraulic pile hammer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |