CN202969382U - Convenient water pressure impact pile driver - Google Patents

Convenient water pressure impact pile driver Download PDF

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Publication number
CN202969382U
CN202969382U CN 201220710684 CN201220710684U CN202969382U CN 202969382 U CN202969382 U CN 202969382U CN 201220710684 CN201220710684 CN 201220710684 CN 201220710684 U CN201220710684 U CN 201220710684U CN 202969382 U CN202969382 U CN 202969382U
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CN
China
Prior art keywords
valve
piston
cavity
pile driver
cylinder body
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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
CN 201220710684
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Chinese (zh)
Inventor
文泽军
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Hunan University of Science and Technology
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Hunan University of Science and Technology
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Priority to CN 201220710684 priority Critical patent/CN202969382U/en
Application granted granted Critical
Publication of CN202969382U publication Critical patent/CN202969382U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses a convenient water pressure impact pile driver which comprises an impacting mechanism and a piling connector mechanism, wherein a connector of the piling connector mechanism is connected with a cylinder body of the impacting mechanism through bolts. The convenient water pressure impact pile driver adopts the water pressure transmission technology, does not consume nonrenewable petroleum resources compared with traditional oil pressure type hydraulic impacting devices, causes no leakage pollution to the environment, is low in noise, and accordingly has good environment benefit; and the used transmission media are wide in source and the operation cost is low. A main machine of the convenient water pressure impact pile driver weighs about 25kg, so that the convenient water pressure impact pile driver is convenient to carry, and has the advantages of being convenient to carry, simple in structure and convenient to repair and maintain. For pile foundation projects which have construction environment requirements that large or medium pile drivers cannot met, such as road guardrails, emergency wracking of river walls and the like, the convenient water pressure impact pile driver can effectively come into play.

Description

A kind of portable hydraulic pressure shocks pile driver
Technical field
The utility model relates to a kind of hydraulic drive type pile driver, particularly a kind of portable hydraulic pressure shocks pile driver.
Background technology
Pile driver is indispensable a kind of construction equipment in the object of construction production such as harbour, bridge, highway construction, and it can be speeded up the work, and reduces the labour intensity for the people, is the important component part of engineering machinery, is bringing into play huge effect in the development of the national economy.Vibration is little, noise is low, the capacity usage ratio advantages of higher, has replaced gradually other power type pile drivers such as steam and diesel, has occupied the market leading position because it has for hydraulic pile driver.But it is power that existing hydraulic pile driver mostly adopts ore deposit base fluid force feed, and in the piling process, ore deposit base fluid force feed easily leaks contaminated environment, and has inflammable problem.In addition also, its operation also needs to consume bulk petroleum resource, the problem that running cost is high.
The utility model content
The above-mentioned technical problem that exists in order to solve existing pile driver, the utility model provides a kind of portable hydraulic pressure shocks pile driver good environmental benefit, that running cost is low that has.
The technical solution adopted in the utility model is: comprise beater mechanism and piling joint mechanism, described beater mechanism comprises cylinder body, piston bonnet, rear support seat, impact piston, front support seat, flat valve, upper valve sleeve and lower valve sleeve, be provided with impact piston in described cylinder inner bore, cylinder inner bore and impact piston form piston ante-chamber, piston back cavity, piston lumen; Cylinder body is provided with accumulator, water inlet and delivery port; On cylinder body, the water inlet is provided with flat valve, and the flat valve lower end is provided with lower valve sleeve, and the flat valve upper end is provided with upper valve sleeve; Cylinder body and flat valve form the left alternating cavity of valve, the left high pressure chest of valve, valve intermediate cavity, valve backwater cavity and the right permanent high pressure chest of valve; The upper end of cylinder body is connected with outer end cap, is provided with piston bonnet and rear support seat in outer end cap, and the piston bonnet is connected with the rear support seat, and the rear support cover for seat is contained in the upper end of impact piston; Piston bonnet and rear support seat form the returning buffering chamber, and the left alternating cavity of valve communicates with the piston ante-chamber by the returned signal hole; The left alternating cavity of valve communicates with the piston lumen by the stroke signal hole; Water inlet, the left high pressure chest of valve communicate with accumulator; Water inlet, the left high pressure chest of valve communicate with the piston ante-chamber; Water inlet, the left high pressure chest of valve communicate with the right permanent high pressure chest of valve by hole, flat valve centre bore; The valve intermediate cavity communicates with the piston back cavity; Delivery port, valve backwater cavity communicate with the piston lumen by backwater hole; The valve backwater cavity communicates with the returning buffering chamber; Water inlet is connected with the water inlet pipe of actuating unit, and delivery port is connected with the outlet pipe of actuating unit;
Described piling joint mechanism comprises joint, anvil iron, positioning sleeve, flat key, fairlead; The cylinder body of described joint and beater mechanism is spirally connected, the endoporus of joint is divided into epicoele and cavity of resorption by dividing plate, and described fairlead and positioning sleeve are located in the epicoele of joint, and fairlead is positioned at the top of positioning sleeve, anvil iron is positioned at cavity of resorption, and the centre bore that passes on dividing plate is connected with positioning sleeve.
In above-mentioned portable hydraulic pressure shocks pile driver, described outer end cap upper surface is provided with suspension ring.
In above-mentioned portable hydraulic pressure shocks pile driver, the side of described cylinder body is provided with handrail.
In above-mentioned portable hydraulic pressure shocks pile driver, be provided with cushion pad between described fairlead and positioning sleeve.
In above-mentioned portable hydraulic pressure shocks pile driver, on described anvil iron, the face relative with impact piston is provided with pallet, is provided with the second cushion pad between anvil iron and dividing plate, and the soffit of anvil iron is provided with dolly.
The beneficial effects of the utility model are:
1) the utility model adopts Hydraulic Drive Technology, compares with oil pressure type hydraulic impactor in the past, need not consume deregenerative petroleum resources, and the leakage environmentally safe threatens, and noise is little, therefore has good environmental benefit; The driving medium that uses is originated wide, and running cost is low.
2) about about 25kg of the utility model main frame quality, be easy to carry, and have conveniently moving, simple in structure and maintenance maintenance advantage easily.Can't satisfy for some big-and-middle-sized pile drivers the pile foundation engineering that construction environment requires, speedily carry out rescue work etc. as highway barrier, river levee, can effectively bring into play its advantage.
Description of drawings
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is each cavity of cylinder interior of the present utility model and water stream channel.
Fig. 3 is backward stroke of the piston boost phase flow direction figure.
Fig. 4 is backward stroke of the piston decelerating phase and stroke boost phase flow direction figure.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model is further described.
As shown in Figure 1, the utility model comprises beater mechanism and piling joint mechanism, described beater mechanism comprises cylinder body 7, flat valve 11, impact piston 21 and front support seat 23, lower valve sleeve 9, flat valve 11 and upper valve sleeve 13, be provided with impact piston 21 in described cylinder body 7 endoporus, cylinder inner bore and impact piston 21 form piston ante-chamber i, piston back cavity g, piston lumen h; Cylinder body 7 sides are provided with accumulator 8, water inlet 10, delivery port 12 and handrail 20; On cylinder body 7, water inlet 10 places are provided with flat valve 11, and flat valve 11 lower ends are provided with lower valve sleeve 9, and flat valve 11 upper ends are provided with upper valve sleeve 13; Cylinder body 7 forms the left alternating cavity a of valve, the left high pressure chest b of valve, valve intermediate cavity c, valve backwater cavity d and the right permanent high pressure chest e of valve with flat valve 11; The upper end of cylinder body 7 is connected by screw 19 with outer end cap 14, is provided with piston bonnet 17 and rear support seat 18 in outer end cap 14, and piston bonnet 17 is connected with rear support seat 18, and rear support seat 18 is sleeved on the upper end of impact piston 21; Piston bonnet 17 forms returning buffering chamber f with rear support seat 18, and returning buffering chamber f can prevent impact piston 21 direct collision to main frame in the backhaul stage.The upper surface of described outer end cap 14 is provided with suspension ring 16.
As shown in Figure 2, the left alternating cavity a of valve is by returned signal hole k 3I communicates with the piston ante-chamber; The left alternating cavity a of valve is by stroke signal hole k 4H communicates with the piston lumen; Water inlet, the left high pressure chest b of valve communicate with accumulator; Water inlet, the left high pressure chest b of valve communicate with the piston ante-chamber; Water inlet, the left high pressure chest b of valve are by hole K 1, flat valve centre bore K 2Right permanent high pressure chest e communicates with valve; Valve intermediate cavity c communicates with piston back cavity g; Delivery port, valve backwater cavity d are by backwater hole K 5H communicates with the piston lumen; Valve backwater cavity d communicates with returning buffering chamber f, and described front support seat 23 is arranged on the lower end of cylinder body 7, is sleeved on impact piston 21.Water inlet 10 is connected with the water inlet pipe P1 of actuating unit, and delivery port 12 is connected with the outlet pipe P2 of actuating unit.
Described piling joint mechanism comprises joint 2, anvil iron 3, flat key 4, positioning sleeve 5 and fairlead 6; Described joint 2 is connected by bolt 22 with the cylinder body 7 of beater mechanism, the endoporus of joint 2 is divided into epicoele and cavity of resorption by dividing plate, described flat key 4, fairlead 6 and positioning sleeve 5 are located in the epicoele of joint 2, fairlead 6 is positioned at the top of positioning sleeve 5, anvil iron 3 is positioned at cavity of resorption, and the centre bore that passes on dividing plate is connected by flat key 4 with positioning sleeve 5.Be provided with cushion pad 24 between described fairlead 6 and positioning sleeve 5, can reduce the impact of impacting rebound impact mechanism.Face relative with impact piston 21 on described anvil iron 3 is provided with pallet 25, the effect that pallet 25 has buffering and transmits impact stress.Be provided with the second cushion pad 25 between anvil iron 3 and dividing plate, the soffit of anvil iron 3 is provided with dolly 27, and dolly 27 has the effect of transmitting impact stress and protecting pile body 1 head.
As shown in Figure 3, wherein solid arrow represent High-Pressure Water to, dotted arrow represent low pressure water flow to.The water under high pressure of outside input enters in the left high pressure chest b of valve from water inlet 10, then along the cylinder interior water stream channel, flows to respectively accumulator 8 and piston ante-chamber i.Under high hydraulic drives, 21 periods of motion of impact piston are divided into backhaul acceleration, backhaul deceleration and stroke and accelerate three phases.After impacting anvil iron 3 take impact piston 21, bounce-back to the right is as the motion starting point, because the right permanent high pressure chest e of valve passes through valve opening K 1, flat valve center water channel K 2Left high pressure chest b communicates with valve, is full of all the time water under high pressure, and the left alternating cavity a of valve is by stroke signal hole, hole K 4With backwater hole K 5D communicates with the valve backwater cavity, is low-pressure water in the chamber, therefore flat valve 11 is in left position under the right permanent high pressure chest e High Pressure of valve, piston back cavity g is communicated, low pressure water flow recovery tank 32 with valve backwater cavity d.Impact piston 21 is upwards done backhaul accelerated motion under piston ante-chamber i water under high pressure drives.
As shown in Figure 4, as impact piston 21 backhauls control limit B 1Cross returned signal hole K 3After, water under high pressure is just through returned signal hole K 3Enter the left alternating cavity a of valve, greater than the right permanent high pressure chest e of valve, therefore that flat valve 11 switches to fast is upper, make that the path of g and valve backwater cavity d is cut off after plunger shaft due to the left alternating cavity a of valve compression area, this moment, water under high pressure entered piston ante-chamber i and piston back cavity g simultaneously.Greater than piston ante-chamber i, resultant direction is downward due to piston back cavity g compression area, and under effect of inertia, impact piston 21 also can continue to move upward until speed is zero, then does stroke accelerated motion downwards.
During impact piston 21 stroke movements, when controlling limit B 2Cross stroke signal hole K 4After, the left alternating cavity a of valve communicates with valve backwater cavity d again, causes the left alternating cavity a of valve hydraulic pressure to descend rapidly, and flat valve 11 is got back to the next fast.This moment, impact piston 21 impacted anvil iron 3, and stroke accelerated motion finishes, impact piston 21 bounce-backs, and beginning is circulation next time.
21 backhaul boost phase initial stages of impact piston and backhaul decelerating phase, greater than impactor system consumption amount, accumulator 8 is stored unnecessary water under high pressures when outside input flow rate; And in backhaul boost phase later stage and stroke stage, the impactor system consumption is during greater than outside input flow rate, accumulator 8 just discharges water under high pressure satisfying the demand of flow system flow, so accumulator 8 can reduce flowed fluctuation and impact to slow down hydraulic pressure, improves capacity usage ratio.Above-mentioned is externally lasting the input under the current driving of hydraulic impactor, and by the travel feedback signal, automatic reverse reaches mutual control to impact piston 21 with flat valve 11, water pressure energy is transformed the process of piston kinetic energy.
Impact piston 21 is after impacting anvil iron 3, impact piston 21 speed reduce to zero bounce-back again from maximum rapidly, and anvil iron 3 is owing to being limited and can't move by flat key 4 at impact direction, thereby produce stress in striking face generation compressive strain, and pass to pile body 1 and make it overcome soil layer resistance and frictional force, make and self sink to gradually soil layer.Impact piston 21 frequency of impacts are the 40Hz left and right approximately, and the high-frequency percussion meeting causes that pile body 1 and surrounding soil particle thereof vibrate together, and covibration even occurs, and has reduced like this adhesion stress of soil particle, makes pile body 1 more easily sink to soil layer.

Claims (6)

1. portable hydraulic pressure shocks pile driver, it is characterized in that: comprise beater mechanism and piling joint mechanism, described beater mechanism comprises cylinder body, piston bonnet, rear support seat, impact piston, front support seat, flat valve, upper valve sleeve and lower valve sleeve, be provided with impact piston in described cylinder inner bore, cylinder inner bore and impact piston form piston ante-chamber, piston back cavity, piston lumen; Cylinder body is provided with accumulator, water inlet and delivery port; On cylinder body, the water inlet is provided with flat valve, and the flat valve lower end is provided with lower valve sleeve, and the flat valve upper end is provided with upper valve sleeve; Cylinder body and flat valve form the left alternating cavity of valve, the left high pressure chest of valve, valve intermediate cavity, valve backwater cavity and the right permanent high pressure chest of valve; The upper end of cylinder body is connected with outer end cap, is provided with piston bonnet and rear support seat in outer end cap, and the piston bonnet is connected with the rear support seat, and the rear support cover for seat is contained in the upper end of impact piston; Piston bonnet and rear support seat form the returning buffering chamber, and the left alternating cavity of valve communicates with the piston ante-chamber by the returned signal hole; The left alternating cavity of valve communicates with the piston lumen by the stroke signal hole; Water inlet, the left high pressure chest of valve communicate with accumulator; Water inlet, the left high pressure chest of valve communicate with the piston ante-chamber; Water inlet, the left high pressure chest of valve communicate with the right permanent high pressure chest of valve by hole, flat valve centre bore; The valve intermediate cavity communicates with the piston back cavity; Delivery port, valve backwater cavity communicate with the piston lumen by backwater hole; The valve backwater cavity communicates with the returning buffering chamber; Described water inlet is connected with the water inlet pipe of actuating unit, and delivery port is connected with the outlet pipe of actuating unit;
Described piling joint mechanism comprises joint, anvil iron, positioning sleeve, flat key, fairlead; The cylinder body of described joint and beater mechanism is spirally connected, the endoporus of joint is divided into epicoele and cavity of resorption by dividing plate, and described flat key, fairlead and positioning sleeve are located in the epicoele of joint, and fairlead is positioned at the top of positioning sleeve, anvil iron is positioned at cavity of resorption, and the centre bore that passes on dividing plate is connected with positioning sleeve.
2. portable hydraulic pressure shocks pile driver as claimed in claim 1, it is characterized in that: described outer end cap upper surface is provided with suspension ring.
3. portable hydraulic pressure shocks pile driver as claimed in claim 1, it is characterized in that: the side of described cylinder body is provided with handrail.
4. portable hydraulic pressure shocks pile driver as claimed in claim 1, is characterized in that: be provided with cushion pad between described fairlead and positioning sleeve.
5. portable hydraulic pressure shocks pile driver as claimed in claim 1, it is characterized in that: on described anvil iron, the face relative with impact piston is provided with pallet, is provided with the second cushion pad between anvil iron and dividing plate, and the soffit of anvil iron is provided with dolly.
6. portable hydraulic pressure shocks pile driver as claimed in claim 1, it is characterized in that: described anvil iron is connected by flat key with positioning sleeve.
CN 201220710684 2012-12-20 2012-12-20 Convenient water pressure impact pile driver Expired - Fee Related CN202969382U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 201220710684 CN202969382U (en) 2012-12-20 2012-12-20 Convenient water pressure impact pile driver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 201220710684 CN202969382U (en) 2012-12-20 2012-12-20 Convenient water pressure impact pile driver

Publications (1)

Publication Number Publication Date
CN202969382U true CN202969382U (en) 2013-06-05

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Application Number Title Priority Date Filing Date
CN 201220710684 Expired - Fee Related CN202969382U (en) 2012-12-20 2012-12-20 Convenient water pressure impact pile driver

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103397635A (en) * 2013-08-09 2013-11-20 山东黄河梁山机械厂 Portable hydraulic flood prevention pile driver

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103397635A (en) * 2013-08-09 2013-11-20 山东黄河梁山机械厂 Portable hydraulic flood prevention pile driver

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
C53 Correction of patent for invention or patent application
CB03 Change of inventor or designer information

Inventor after: Wen Zejun

Inventor after: Wang Jin

Inventor after: Yang Shuyi

Inventor after: Liu Deshun

Inventor after: Yue Wenhui

Inventor before: Wen Zejun

COR Change of bibliographic data

Free format text: CORRECT: INVENTOR; FROM: WEN ZEJUN TO: WEN ZEJUN WANG JIN YANG SHUYI LIU DESHUN YUE WENHUI

CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20130605

Termination date: 20151220

EXPY Termination of patent right or utility model