CN101275398A

CN101275398A - Pile hammer

Info

Publication number: CN101275398A
Application number: CNA2008100605954A
Authority: CN
Inventors: 周荣珍
Original assignee: Individual
Current assignee: Individual
Priority date: 2008-03-29
Filing date: 2008-03-29
Publication date: 2008-10-01

Abstract

The invention discloses a pile driving hammer, which includes a power source first carrier pipe, a hammer frame, a cylinder, a tamping hammer and a cylinder rod, wherein, the cylinder rod has a relative movement with the cylinder, the tamping hammer is arranged in the hammer frame, which is characterized in that a startup sensor is mounted on the hammer frame, at least one stroke sensor is mounted above the startup sensor on the hammer frame, the startup sensor and the stroke sensor are connected with a controlling mechanism, a control valve is mounted on the power source first carrier pipe, the control valve is electrically connected with the controlling mechanism. The invention adopts a sensor and controlling mechanism control, which allows the tamping hammer elevated stroke to be automatically controlled in the pile driving hammer pile driving process. The pile driving hammer has good anti-shock performance, high automatization degree, small volume and convenient examination and repair.

Description

Pile hammer

Technical field

What the present invention relates to is the pile hammer that a kind of construction work is used, in particular a kind of pile hammer that adopts inductor induction hammer ram stroke.

Background technology

At present, the construction of highrise building and soft foundation all must be driven piles, and pile works in the past all adopts the diesel oil jump bit, when capital construction is driven piles,, be the problem that near resident, machine-operated school and construction team are extremely perplexed because the noise of diesel oil jump bit and waste gas cause serious environmental to pollute always, thereby the applicant is in order to address this problem, invented the pile monkey that a kind of name is called " pile-driving hydraulic hammer ", this technology to national applications patent, its patent No. is ZL02158548.2; But this pile monkey adopts the freely falling body principle, and in the use of reality, owing to be subjected to the influence of various external factors, the piston rod hammer has only theoretic 60% to the hitting power of stake, and for large-scale construction project, its hammer force can't reach actual needs.Therefore, the inventor has invented a kind of hydraulic pile hammer again for addressing this problem, and this hydraulic pile hammer has also been applied for patent, and its application number is 200610057249.1.But because the structure of this pile hammer is oversize, make troubles to construction again, improve again, also applied for two patents to State Intellectual Property Office simultaneously, its number of patent application is respectively 200710156622.3,200710156623.8.These above-mentioned pile hammer all adopt hydraulic oil to realize driving piles, and these hydraulic oil are connected by control valve and some relays and contactor, control oil-feed and fuel-displaced, so the shockproof properties of this pile hammer is relatively poor, volume is big; When breaking down, maintenance is difficulty relatively, and simultaneously, its automaticity is lower.And these pile hammer produce frictional force owing to the contact of piston, fairlead and piston rod, when its frictional force acquires a certain degree, the pressure of power source is impaired, causes that hammer ram falls or rises not in placely, makes pile forming machine and can not drive piles or reduced impact energy.

Summary of the invention

In view of the deficiency that background technology exists, the pile hammer that the technical problem to be solved in the present invention provides a kind of automaticity height, pile monkey rising or falls to putting in place.

For this reason, the present invention takes following technical scheme to realize: a kind of pile hammer, comprise power source first carrier pipe, the hammer framework, cylinder body, hammer ram and piston rod, described piston rod and cylinder body relative motion, described hammer ram places in the described hammer framework, it is characterized in that described hammer framework is provided with start sensor, above the start sensor of described hammer framework, be provided with at least one stroke sensor, described start sensor is connected with controlling organization with described stroke sensor, on described power source first carrier pipe control valve is installed, this control valve is electrically connected with described controlling organization.

Among the present invention, the relation of its cylinder body, piston rod, hammer ram has following dual mode: a kind of is that this pile hammer also comprises power source second carrier pipe, described power source second carrier pipe is connected with described control valve, described cylinder body places in the hammer ram, one end of described piston rod is fixed on the hammer framework, and the other end places in the cylinder body of hammer ram.Another kind is: described cylinder body is arranged on the top of hammer ram, and an end of described piston rod is connected with described hammer ram, and the other end places in the described cylinder body.

In above-mentioned technical scheme, described controlling organization is a micro computer.

Further, at the top of described hammer framework range finder is installed, reflecting plate is installed above described pile hammer, described range finder is connected with described micro computer.

The present invention adopts the cooperation of sensor and controlling organization, automatically control the rising stroke of hammer ram, reduced the unnecessary waste of the energy, wherein, utilize micro computer, solved the problem of the shockproof properties difference of prior art repeat circuit, contactor construction, and reduced the overall volume of pile monkey, improved automaticity, and its maintenance is very convenient; And the induction by sensor, make pile monkey rise or the stroke that falls puts in place, and guarantee the enough impact energys of pile monkey; The installation of its range finder and reflecting plate can detect the degree of depth that stake is sunk, and its data can be measured the holding capacity of stake by the calculating of micro computer.

Description of drawings

Further describe relevant details of the present invention below more in conjunction with the accompanying drawings.

Fig. 1 is the structure chart of first embodiment of the invention;

Fig. 2 is the structure chart of second embodiment of the invention.

The specific embodiment

Embodiment one: as shown in Figure 1, this pile hammer comprises power source first carrier pipe 16, power source second carrier pipe 14, hammer framework 18, cylinder body 4, hammer ram 2 and piston rod 8, and the power source medium of present embodiment both can adopt hydraulic oil, can adopt gas again; Described cylinder body 4 places in the hammer ram 2, and an end of described piston rod 8 is fixed on the hammer framework 18, and the other end places in the cylinder body 4 of hammer ram 2, and hammer ram 2 is moved along piston rod 8, and the piston 19 on its piston rod 8 also is divided into upper cavity 5 and lower chamber 3 with cylinder body 4; Its power source first carrier pipe 16 is communicated with upper cavity 5 by first through hole 13 in the piston rod 8, and its power source second carrier pipe 14 is communicated with lower chamber 3 by second through hole 11 on the piston rod 8; Described hammer ram 2 places in the hammer framework 18, described hammer framework 18 is provided with start sensor 6, above the start sensor 6 of described hammer framework 18, be provided with four

stroke sensors

7,9,10,12, these four stroke sensors are installed in respectively apart from 0.3 meter at hammer ram 2 tops, 0.56 rice, 0.8 rice, 1.2 the position of rice, described start sensor 6 and described

stroke sensor

7,9,10,12 all are connected with micro computer (not drawing among the figure), all be connected with control valve (not drawing among the figure) on described power source first carrier pipe 16 and power source second carrier pipe 14, this control valve is connected with described microcomputer electric; Described control valve is an electromagnetic valve; At the top of described hammer framework 18 range finder 15 is installed, reflecting plate 17 is installed above described pile hammer, described range finder 15 is connected with described micro computer.When the present invention works, according to soil property, set the height that hammer ram 2 will rise, the height of its rising is according to the installation site of

stroke sensor

7,9,10,12, can be set to 0.3 meter, 0.56 meter, 0.8 meter, 1.2 meters, therefore, according to the height of setting, it is installed in the stroke sensor work of corresponding height, and other three stroke sensors are in closed condition.Open power supply, when start sensor 6 does not detect hammer ram 2, promptly open-minded by the control valve on microcomputerized control power source first carrier pipe 16, to delivery hydraulic pressure oil or gas in power source first carrier pipe 16, its hydraulic oil or gas arrive in the upper cavity 5 of cylinder body 4 by first through hole 13 on the piston rod 8, at this moment, upper cavity 5 is subjected to the pressure of hydraulic oil or gas, its hammer ram 2 promptly rises along piston rod 8, when rising to desired location, the stroke sensor at this place detects hammer ram 2, then make the control valve on power source first carrier pipe 16 stop delivery hydraulic pressure oil or gas by micro computer, make control valve conducting power source second carrier pipe 14 simultaneously, at this moment, hydraulic oil in the upper cavity 5 or gas are then oppositely exported hydraulic oil or gas by first through hole 11 by power source first carrier pipe 16, then hydraulic oil or gas are transported to lower chamber 3 by power source second carrier pipe 14 by second through hole 11 in the piston rod 8, at this moment, hammer ram 2 just glides along piston rod 8, hammer ram 2 just comes the hammering stake by impact pad 1, realizes the purpose of piling.Its every hammering once, whole pile monkey just descends, thereby, the range finder 15 at its pile hammer top is just sensed the distance with top reflecting plate 17, and this distance parameter is input to micro computer, and micro computer is by converting, write down the distance that each pile monkey descends, calculate the holding capacity of stake with this.Above-mentioned range finder 15 is a laser range finder.

Embodiment two: the difference of this embodiment and embodiment one is, has only a power source carrier pipe, i.e. first carrier pipe 16, described cylinder body 4 is arranged on the top of hammer ram 2, one end of described piston rod 8 is fixedlyed connected with described hammer ram 2, the other end places in the described cylinder body 4, makes piston rod 8 to slide in cylinder body 4.When its hydraulic oil or gas are carried, be delivered directly in the cylinder body 4 by power source first carrier pipe 16, the rising that is stressed of the piston 19 of cylinder body 4 inner piston rods 8, driving hammer ram 2 rises, after reaching desired location, by the action of the control valve on microcomputerized control power source first carrier pipe 16, promptly cylinder body 4 reverse delivery hydraulic pressure oil or gas are to power source first carrier pipe 16 equally, and this process is the process of oil return.At this moment, hammer ram 2 just falls with the speed of freely falling body, carries out hammering, reaches the piling purpose, and other principle is identical with embodiment one.

Claims

1, a kind of pile hammer, comprise power source first carrier pipe (16), hammer framework (18), cylinder body (4), hammer ram (2) and piston rod (8), described piston rod (8) and cylinder body (4) relative motion, described hammer ram (2) places in the described hammer framework (18), it is characterized in that described hammer framework (18) is provided with start sensor (6), top at the start sensor (6) of described hammer framework (18) is provided with at least one stroke sensor, described start sensor (6) is connected with controlling organization with described stroke sensor, on described power source first carrier pipe (14) control valve is installed, this control valve is electrically connected with described controlling organization.

2, pile hammer according to claim 1, it is characterized in that this pile hammer also comprises power source second carrier pipe (14), described power source second carrier pipe (14) is connected with described control valve, described cylinder body (4) places in the hammer ram (2), one end of described piston rod (8) is fixed on the hammer framework (18), and the other end places in the cylinder body (4) of hammer ram (2).

3, pile hammer according to claim 1 is characterized in that described cylinder body (4) is arranged on the top of hammer ram (2), and an end of described piston rod (8) is connected with described hammer ram (2), and the other end places in the described cylinder body (4).

4,, it is characterized in that described controlling organization is a micro computer according to claim 1 or 2 or 3 described pile hammer.

5, pile hammer according to claim 4, the top of its feature hammer framework (18) is equipped with range finder (15), and reflecting plate is installed above described pile hammer, and described range finder is connected with described micro computer.