阅读说明：本技术 一种房建施工用的打桩机 (Pile driver of construction usefulness is built in room ) 是由 史红华 汪家雄 郝各贵 苗永军 杨波邦 张泽文 薛云观 戴少波 胥皓文 于 2020-12-08 设计创作，主要内容包括：一种房建施工用的打桩机,包括车体(1)、控制室(2)、履带轮(3)、升降台立柱(4)、滑块(13)、承重台(12)、电机(14)及螺旋桩杆(23)、两端分别固定连接于车体和升降台立柱上的支撑曲臂(7),在车体上设置有蓄水箱(5),蓄水箱连接有输水弯管(6),在输水弯管出水端连接有输水软管(11)；在承重台(12)上开设有分流水道,分流水道的出水孔(17)朝下对向地面；在承重台中心开设有中心通孔(9),电机输出轴穿过中心通孔；在中心通孔底面安装有缓冲件(15),螺旋桩杆(23)的上端穿过缓冲件外壳与缓冲件中的撞击头(18)连接。本发明可提高打桩效率,延长打桩机使用寿命。(A pile driver for building construction comprises a vehicle body (1), a control room (2), crawler wheels (3), a lifting platform upright post (4), a sliding block (13), a bearing platform (12), a motor (14), a spiral pile rod (23), and a supporting crank arm (7) with two ends respectively fixedly connected to the vehicle body and the lifting platform upright post, wherein a water storage tank (5) is arranged on the vehicle body and is connected with a water delivery elbow (6), and a water delivery hose (11) is connected to the water outlet end of the water delivery elbow; a water distribution channel is arranged on the bearing platform (12), and a water outlet hole (17) of the water distribution channel faces downwards to the ground; a central through hole (9) is formed in the center of the bearing table, and the output shaft of the motor penetrates through the central through hole; a buffer piece (15) is installed on the bottom surface of the central through hole, and the upper end of a spiral pile rod (23) penetrates through a buffer piece shell to be connected with an impact head (18) in the buffer piece. The invention can improve the piling efficiency and prolong the service life of the pile driver.)

1. A pile driver for building construction comprises a pile driver body (1), a control chamber (2) positioned at the front end of the body, a track wheel (3) below the body, a lifting platform upright post (4) arranged in front of the body, a slide block (13) which is arranged outside the lifting platform upright post and can slide downwards, a bearing platform (12) connected to the slide block, a motor (14) which is arranged on the bearing platform and outputs axial downward, a vertical spiral pile rod (23) driven by the motor, and a supporting crank arm (7) of which two ends are respectively and fixedly connected to the body and the lifting platform upright post, the lifting platform is characterized in that a water storage tank (5) is arranged at the rear end of the vehicle body (1), the water storage tank is connected with a water delivery elbow (6) which extends upwards, the top end of the water delivery elbow is fixedly arranged on a fixing piece (10) at the top of a lifting platform upright post, and the water outlet end of the water delivery elbow is connected with a water delivery hose (11); a water distribution channel is arranged on the bearing platform (12), and a water outlet hole (17) of the water distribution channel faces downwards to the ground; a vertical central through hole (9) is formed in the center of the bearing table (12), and an output shaft of the motor penetrates through the central through hole; the bottom surface of the central through hole is provided with a buffer part (15), the buffer part comprises a shell, a cylinder sleeve (20) arranged in the shell, a piston (21) with a bidirectional piston rod arranged in the cylinder sleeve, an impact head (18) connected to the lower end of the lower piston rod and a return spring (22) sleeved outside the upper piston rod and connected with the piston, the output shaft of the motor is connected with the upper piston rod, and the upper end of the spiral pile rod (23) penetrates through the buffer part shell to be connected with the impact head.

2. Pile driver for building construction according to claim 1, characterised in that the distribution channel provided in the bearing platform (12) comprises horizontal distribution pipes (16) provided in the bearing platform, water outlets (17) arranged at the bottom of the central through hole of the bearing platform and communicating with the distribution pipes, and that the water hose (11) is connected to the distribution pipes (16).

3. Pile driver for building construction according to claim 1, characterised in that the distribution channel provided in the bearing platform (12) comprises horizontal distribution pipes (16) provided in the bearing platform on both sides of the central through hole, connection hoses (26) connecting the distribution pipes on both sides, water outlet holes (17) distributed in the bottom of the bearing platform on both sides of the central through hole and communicating with the distribution pipes, the water delivery hoses (11) being connected to the distribution pipes (16).

4. Pile driver for building construction according to claim 1, characterised in that the water diversion channel provided in the bearing platform (12) comprises vertical water outlet openings (17) provided on both sides of the central through hole of the bearing platform, which are connected to the water hose (11) by means of two transition hoses (28) and a tee (27).

5. Pile driver for building construction according to claim 2 or 3 or 4, characterised in that the outlet opening (17) is externally connected with a nozzle (24).

6. Pile driver for building construction according to claim 1, characterised in that the water outlet holes (17) are located on both sides of the screw pile rod (23).

7. Pile driver for building construction according to claim 1 or 2 or 3 or 4, characterised in that a sound damping sleeve (25) is inserted over the impact head (18).

8. Pile driver for building construction according to claim 5, characterised in that a sound damping sleeve (25) is fitted over the impact head (18).

9. Pile driver for building construction according to claim 1 or 2 or 3 or 4, characterised in that inside the lifting platform column (4) is mounted a connecting socket (8) on which the upper end of the supporting crank arm (7) is mounted.

10. Pile driver for building construction according to claim 5, characterised in that inside the lifting platform column (4) is mounted a connecting socket (8) on which the upper end of the supporting crank arm (7) is mounted.

Technical Field

The invention belongs to the technical field of pile drivers, and particularly relates to a pile driver special for building construction.

Background

The pile driver is multifunctional, efficient and less-pollution precast pile and cast-in-place pile hole equipment, is widely applied to foundation construction projects of municipal construction, highway bridges, high-rise buildings and the like, and along with the improvement of the agricultural development level, more and more agricultural and electric building facilities, rural house construction and the like need to be constructed by the pile driver.

The pile driver of construction usefulness is built in current room mainly by the pile driver automobile body, the driver's cabin, the athey wheel, set up in vertical stake pole and the stake pole elevating platform in automobile body the place ahead, extend away from the automobile body and be used for supporting the support arm etc. of stake pole elevating platform and constitute, this kind of pile driver is piling the in-process, because of the comparatively dry and hard of ground earth, the stake pole directly impacts the pile downwards, pile driving efficiency is lower, the reaction force that the stake pole received when piling simultaneously does not cushion, can lead to the pile driver automobile body to receive the adverse effect of stake pole vibrations, subtract the life of short pile driver.

Therefore, how to design a pile driver which has high pile driving efficiency and long service life and is suitable for building construction becomes a problem to be solved at present.

Disclosure of Invention

The invention aims to solve the problems of low piling efficiency and poor buffering effect of the existing pile driver, and provides the pile driver for building construction, which has high piling efficiency and long service life.

In order to achieve the purpose, the invention provides the following technical scheme:

a pile driver for building construction comprises a pile driver body, a control room positioned at the front end of the body, a crawler wheel below the body, a lifting platform upright post arranged in front of the body, a slide block which is arranged on the outer side of the lifting platform upright post and can slide downwards, a bearing platform connected to the slide block, a motor which is arranged on the bearing platform and outputs axial downward, a vertical spiral pile rod driven by the motor, and a supporting crank arm of which two ends are respectively and fixedly connected to the body and the lifting platform upright post, wherein the rear end of the body is provided with a water storage tank which is connected with a water delivery elbow pipe extending upwards, the top end of the water delivery elbow pipe is fixedly arranged on a fixing piece at the top of the lifting platform upright post, and the water outlet end of the water delivery elbow pipe is connected; a water distribution channel is formed in the bearing platform, and a water outlet hole of the water distribution channel faces downwards to the ground; a vertical central through hole is formed in the center of the bearing table, and the output shaft of the motor penetrates through the central through hole; the bottom surface of the central through hole is provided with a buffer piece, the buffer piece comprises a shell, a cylinder sleeve arranged in the shell, a piston with a bidirectional piston rod arranged in the cylinder sleeve, an impact head connected to the lower end of the lower piston rod, and a return spring sleeved outside the upper piston rod and connected with the piston, the output shaft of the motor is connected with the upper piston rod, and the upper end of the spiral pile rod penetrates through the buffer piece shell and is connected with the impact head.

Furthermore, the reposition of redundant personnel water course of seting up on the bearing platform is including seting up the horizontally reposition of redundant personnel water pipe on the bearing platform, distribute in the central through-hole both sides bottom of bearing platform and with the apopore of reposition of redundant personnel water pipe intercommunication, water hose connects the reposition of redundant personnel water pipe.

Furthermore, the reposition of redundant personnel water course of seting up on the bearing platform is including seting up the horizontal reposition of redundant personnel water pipe that is located central through-hole both sides on the bearing platform, the connecting hose of connecting both sides reposition of redundant personnel water pipe, distribute in the bottom of bearing platform central through-hole both sides and with the apopore of reposition of redundant personnel water pipe intercommunication, water delivery hose connects the reposition of redundant personnel water pipe.

Furthermore, the water diversion channel arranged on the bearing platform comprises vertical water outlets arranged on two sides of a central through hole of the bearing platform, and the two water outlets are connected with the water delivery hose through two transition hoses and a tee joint.

Furthermore, the water outlet hole is externally connected with a water outlet nozzle.

Furthermore, the water outlet holes are respectively positioned on two sides of the spiral pile rod.

Furthermore, a silencing sleeve is embedded outside the impact head.

Furthermore, a connecting seat is installed on the inner side of the lifting platform upright post, and the upper end of the supporting crank arm is installed on the connecting seat.

Compared with the prior art, the invention has the following advantages:

1. the invention is provided with the water flushing system consisting of the water storage tank, the water delivery elbow pipe, the water delivery hose, the diversion water pipe, the water outlet hole and the like, when the spiral pile rod is used for piling, water flows downwards into soil at the piling position to soften the soil and reduce the hardness of a foundation, and meanwhile, the soil attached to the spiral pile rod can be washed away by the water which flows downwards, so that the pile rod can better carry out piling work, and the piling efficiency is improved. Especially, the water outlet holes are positioned at two sides of the spiral pile rod, so that the flowing water can be concentrated at the piling position, and the soil on the spiral pile rod can be better washed. The flushing system, the vehicle body and the weighing platform are integrated, can move along with the pile driver, does not need manual participation during flushing, and is efficient and safe.

2. The invention is provided with the buffer piece, and when the piston moves during piling, the return spring is compressed to buffer the spiral pile rod, thereby reducing the impact and vibration on other parts during piling and prolonging the service life of the pile driver.

3. The invention has simple structure, safe and reliable use, low manufacturing cost and easy maintenance.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a cross-sectional top view of the bearing table of FIG. 1 taken along the water diversion pipe;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is an embodiment of a split water channel arrangement;

FIG. 5 is another embodiment of a split water channel arrangement;

fig. 6 is a radial section of the buffer member and the connection with the screw pile rod.

The labels in the figure are: 1. the device comprises a vehicle body, 2, a control chamber, 3, a crawler wheel, 4, a lifting platform upright post, 5, a water storage tank, 6, a water delivery bent pipe, 7, a crank arm, 8, a connecting seat, 9, a central through hole, 10, a fixing part, 11, a water delivery hose, 12, a bearing platform, 13, a sliding block, 14, a motor, 15, a buffer part, 16, a water diversion pipe, 17, a water outlet hole, 18, a collision head, 19, a lower piston rod, 20, a cylinder sleeve, 21, a piston, 22, a return spring, 23, a spiral pile rod, 24, a water nozzle, 25, a silencing sleeve, 26, a connecting hose, 27, a tee joint, 28 and a transition hose.

Detailed Description

The invention will be further elucidated with reference to the embodiments and the accompanying drawings. The described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work based on the technical solution of the present invention belong to the protection scope of the present invention.

As shown in fig. 1, the pile driver for building construction includes a body 1 of the pile driver, a control room 2 located at the front end of the body, a track wheel 3 below the body, a lifting platform column 4 disposed in front of the body, a slide block 13 mounted on the outer side of the lifting platform column and capable of sliding downward, a bearing platform 12 connected to the slide block, a motor 14 mounted on the bearing platform and outputting axial downward, a vertical spiral pile rod 23 driven by the motor, and a support crank arm 7 having both ends fixedly connected to the body and the lifting platform column, respectively. The inner side of the lifting platform upright post 4 is provided with a connecting seat 8, and the upper end of the supporting crank arm 7 is arranged on the connecting seat. The crank arm of this embodiment is three connecting rod structures, can adjust in a flexible way along with the position adjustment of elevating platform to firm support elevating platform stand. The vehicle body 1, the control chamber 2 and the crawler wheels 3 form a walking vehicle, the control chamber 2 is a cab, and a piling operator can control the vehicle to run in the cab, move the piling machine to a piling position and carry out piling operation.

The invention is characterized in that the rear end of the vehicle body 1 is provided with a water storage tank 5 which is connected with a water delivery elbow 6 extending upwards, the top end of the water delivery elbow is fixedly arranged on a fixing piece 10 at the top of the lifting platform upright post, and the water outlet end of the water delivery elbow is connected with a water delivery hose 11. The water inlet end of the water delivery elbow is provided with a water suction pump, and the water suction pump can be controlled by a control room to start and stop.

In order to avoid the collision between the water pipe and the lifting platform upright post caused by the shake of the water pipe on the water storage tank in the moving process of the pile driver and prevent the water pipe from being damaged, the top of the lifting platform upright post is provided with a fixing part 10, and the water pipe is clamped and fixed through the fixing part.

As shown in fig. 2, 3, 4, and 5, a water diversion channel is formed on the bearing table 12, a water outlet 17 of the water diversion channel faces downward and faces the ground, and the water outlet can be externally connected with a water outlet nozzle 24. A vertical central through hole 9 is arranged at the center of the bearing table 12, and the output shaft of the motor penetrates through the central through hole.

The water diversion channel arranged on the bearing platform 12 is shown in fig. 2 and 3 and comprises a horizontal water diversion pipe 16 arranged on the bearing platform and water outlet holes 17 distributed at the bottoms of the two sides of the central through hole of the bearing platform and communicated with the water diversion pipe, and the water delivery hose 11 is connected with the water diversion pipe 16.

As an alternative, as shown in fig. 4, the water diversion channel opened on the bearing platform 12 includes horizontal water diversion pipes 16 opened on the bearing platform at two sides of the central through hole, connection hoses 26 connected to the water diversion pipes at two sides, and water outlet holes 17 distributed at the bottom of the bearing platform at two sides of the central through hole and communicated with the water diversion pipes, wherein the water delivery hoses 11 are connected to the water diversion pipes 16.

As another alternative, as shown in fig. 5, the diversion water channel formed on the bearing platform 12 is a vertical water outlet 17 formed on both sides of the central through hole of the bearing platform, and the two water outlets are connected with the water delivery hose 11 through two transition hoses 28 and a tee 27.

The bottom surface of the central through hole is provided with a buffer part 15, the buffer part comprises a shell, a cylinder sleeve 20 arranged in the shell, a piston 21 with a bidirectional piston rod arranged in the cylinder sleeve, an impact head 18 connected to the lower end of a lower piston rod 19, and a return spring 22 sleeved outside an upper piston rod and connected with the piston, an output shaft of the motor is connected with the upper piston rod, the upper end of a spiral pile rod 23 penetrates through the buffer part shell to be connected with the impact head, and the water outlet holes 17 are respectively positioned on two sides of the spiral pile rod 23. A silencing sleeve 25 is embedded outside the impact head 18 to reduce noise during pile driving.

The working process of the invention is as follows: the pile driver operator drives the vehicle to move, moving the pile driver to the pile driving position. The motor 14 is then activated, i.e. the screw pile rod 23 is driven to pile. Before or when the motor is started, the water pump is started, water in the water storage tank 5 is pumped to the water diversion pipeline through the water delivery elbow 6 and the water delivery hose 11, the water is flushed to the foundation where the spiral pile rod is driven through the water outlet hole 17 and the water outlet nozzle 24, the hardness of soil of the foundation is reduced, the soil adhered to the spiral pile rod is washed, and the pile driving efficiency is improved.

During the piling process, the spiral pile rod 23 generates large vibration force, so that the spiral pile rod is abraded in an aggravating manner, and the service life is shortened. The buffer piece can buffer the vibration force caused by piling the spiral pile rod. In the buffering process, the reaction force that the screw pile pole received can be used on striking head 18, and striking head can consequently upwards move, promotes the piston and upwards moves in the cylinder liner, extrudees reset spring 22, and reset spring takes place to warp and cushions the screw pile pole to reduce the influence that causes other parts when the screw pile pole is piled well, increase of service life. While reducing the piling noise by the action of the noise dampening sleeve 25.