CN112681312A - Application method of double-mass steam pile hammer - Google Patents
Application method of double-mass steam pile hammer Download PDFInfo
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- CN112681312A CN112681312A CN202011516049.4A CN202011516049A CN112681312A CN 112681312 A CN112681312 A CN 112681312A CN 202011516049 A CN202011516049 A CN 202011516049A CN 112681312 A CN112681312 A CN 112681312A
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Abstract
The invention provides a using method of a double-mass steam pile hammer, and belongs to the technical field of building construction. The invention comprises the following steps: opening the first electromagnetic valve, closing the second electromagnetic valve, and introducing steam into the first piston cavity; starting the two winches, releasing the first pull rope and the second pull rope, enabling the first hammer core to move downwards, and enabling the second hammer core to move downwards; when the first hammer core hammers the anvil iron, the second air hole is communicated with the first air hole, the second pull rope is continuously released, the second hammer core moves downwards, the third electromagnetic valve is opened, steam above the first hammer core enters the second piston cavity, the second hammer core is pushed to rapidly move downwards, and secondary alternate hammering is completed; and closing the first electromagnetic valve, opening the second electromagnetic valve and the third electromagnetic valve, starting the two winches, simultaneously winding the first pull rope and the second pull rope, returning the first hammer core and the second hammer core to the initial positions, repeating the operations, and continuously hammering the pile leg. The invention can quickly and alternately hammer the pile legs and improve the piling efficiency.
Description
Technical Field
The invention belongs to the technical field of building construction, and relates to a using method of a dual-mass steam pile hammer.
Background
The pile foundation is a widely adopted foundation form, and the existing pile-forming mode of the foundation pile mainly comprises drilling and pouring, static pressure, hammering, vibrating pile sinking and the like.
Present hammering pile equipment is when the pile is driven, mainly realize going into the stake through the mode of weight hammering pile head, the hammering energy mainly passes through diesel oil, steam, mode such as hydraulic pressure provides, hammering at every turn all need promote the weight to freely fall or exert steam pressure through the hammer top after the take the altitude, diesel oil internal combustion pressure or hydraulic pressure improve the initial velocity of hammering, once after hammering, the peripheral soil layer of disturbance, then promote the weight, carry out the hammering for the second time, the interval time when hammering for the first time and hammering for the second time is short more, the speed that the stake inserted the soil layer is faster. But the interval time of two hammering of current hammering pile driving equipment is longer, has reduced the hammering number of times, has reduced pile driving efficiency.
Disclosure of Invention
The invention aims to solve the problems in the prior art, and provides a using method of a dual-mass steam pile hammer, which can quickly and alternately hammer pile legs and improve the pile driving efficiency.
The purpose of the invention can be realized by the following technical scheme:
a use method of a dual-mass steam pile hammer comprises the following steps:
s1, opening a first electromagnetic valve on a first air inlet pipe, closing a second electromagnetic valve on a first exhaust pipe, starting steam generation equipment, and introducing steam into a first piston cavity through the first air inlet pipe;
s2, starting the two winches, releasing the first pull rope and the second pull rope simultaneously, enabling the first hammer core to move downwards rapidly under the pushing of self gravity and steam, and enabling the second hammer core to move downwards rapidly under the action of self gravity;
s3, when the anvil is hammered by the first hammer core, the second air hole is communicated with the first air hole, the second pull rope is continuously released, the second hammer core continuously moves downwards, air below the second hammer core is discharged through the second air hole and the first air hole, meanwhile, a third electromagnetic valve on the communicating pipe is opened, steam above the first hammer core enters the second piston cavity through the communicating pipe, the second hammer core is pushed to rapidly move downwards, and secondary alternate hammering is completed;
s4, closing the first electromagnetic valve on the first air inlet pipe, opening the second electromagnetic valve on the first exhaust pipe and the third electromagnetic valve on the communicating pipe, starting the two winches, simultaneously rolling the first pull rope and the second pull rope, enabling the first hammer core and the second hammer core to return to the initial positions, repeating the operations, and continuously hammering the pile leg.
In the use method of the dual-mass steam pile hammer, the pile hammer comprises a pile barrel, a first piston cavity is arranged in the pile barrel, an anvil iron is arranged at the bottom of the first piston cavity, a knocking block is fixedly arranged at the lower end of the pile barrel, and the anvil iron is fixedly connected with the upper side face of the knocking block;
the first air inlet pipe is fixedly connected to the upper end of the pile barrel and communicated with the top of the first piston cavity, a first electromagnetic valve is arranged on the first air inlet pipe, and the first air inlet pipe is communicated with the steam generating equipment;
the first exhaust pipe is fixedly connected to the upper end of the pile barrel and communicated with the top of the first piston cavity, a second electromagnetic valve is arranged on the first exhaust pipe, and the first exhaust pipe is communicated with the outside;
the first air holes are formed in the lower end of the first piston cavity along the circumferential direction and are communicated with the outside;
the hammer comprises a first hammer core, a second piston cavity, a plurality of second air holes, a plurality of first air holes and a communication pipe, wherein the first hammer core is arranged in the first piston cavity in a vertically sliding mode, the second piston cavity is arranged in the first hammer core, the bottom of the second piston cavity is provided with the plurality of second air holes, the plurality of second air holes correspond to the plurality of first air holes one by one, when the first hammer core moves downwards to contact with an anvil iron, the second air holes are communicated with the corresponding first air holes, the upper end of the first hammer core is provided with the communication pipe, the communication pipe is communicated with the top of the second piston cavity, and the communication pipe is provided with a third electromagnetic valve;
the second hammer core is arranged in the second piston cavity in a vertically sliding mode;
the lifting mechanism is arranged in the pile barrel and can drive the first hammer core and the second hammer core to move towards the upper ends of the first piston cavity and the second piston cavity respectively.
In the above method of using the dual mass steam pile hammer, the lifting mechanism comprises:
the first through hole and the second through hole are coaxially formed in the upper end and the lower end of the first hammer core and are communicated with the second piston cavity, and the third through hole is coaxially formed in the second hammer core and penetrates through the upper end and the lower end of the second hammer core;
the fixed pipe is coaxially and fixedly arranged in the first piston cavity, the lower end of the fixed pipe is fixedly connected with the anvil iron, the upper end of the fixed pipe sequentially penetrates through the second through hole, the third through hole and the first through hole, and the end part of the fixed pipe extends out of the upper end of the pile barrel;
the two sliding groove holes are symmetrically formed in the fixed pipe along the length direction;
the first lifting structure is arranged in the first hammer core and can drive the first hammer core to slide to the upper end of the first piston cavity along the fixed pipe;
and the second lifting structure is arranged in the second hammer core, and can drive the second hammer core to slide to the upper end of the second piston cavity along the fixed pipe.
In the above method of using the dual mass steam pile hammer, the first lifting structure comprises:
the two first grooves are symmetrically formed in the side wall, located on the second through hole, of the first hammer core;
the first limiting block is horizontally inserted into the two sliding groove holes, the left side and the right side of the first limiting block respectively extend out of the two sliding groove holes, and the end parts of the first limiting block extend into the two first grooves;
the first driving structure is arranged at the upper end of the pile barrel and can drive the first limiting block to move upwards along the two sliding groove holes.
In the above method of using the dual mass steam pile hammer, the first drive structure comprises:
the first pulley is rotatably arranged at the upper end of the pile barrel;
one end of the first pull rope is fixedly arranged on the first limiting block, the other end of the first pull rope penetrates out of the fixed pipe upwards to wind around the first pulley, and the end part of the first pull rope is connected with a winch.
In the above method of using the dual mass steam pile hammer, the second lifting structure comprises:
the two second grooves are symmetrically formed in the side wall, located on the third through hole, of the second hammer core;
the left side and the right side of the second limiting block respectively extend out of the two sliding groove holes, and the end parts of the second limiting block extend into the two second grooves;
and the second driving structure is arranged at the upper end of the pile barrel and can drive the second limiting block to move upwards along the two sliding groove holes.
In the above method of using the dual mass steam pile hammer, the second drive structure comprises:
the second pulley is rotatably arranged at the upper end of the pile barrel;
and one end of the second pull rope is fixedly arranged on the second limiting block, and the other end of the second pull rope upwards penetrates out of the fixed pipe to pass through the second pulley and the end part of the fixed pipe to be connected with another winch.
In the use method of the dual-mass steam pile hammer, the lower end of the pile barrel is coaxially and fixedly provided with the pile sleeve, the pile sleeve is cylindrical, the opening of the pile sleeve faces downwards, and the knocking block is located in the pile sleeve.
In the use method of the double-mass steam pile hammer, a limiting plate is arranged at the upper end of the first piston cavity, and the limiting plate is annular and is located below the first air inlet pipe and the first exhaust pipe.
In the use method of the dual-mass steam pile hammer, the lower end of the first hammer core is in a convex spherical shape, the upper side of the anvil is in a concave spherical shape and is matched with the lower end of the first hammer core, the lower end of the second hammer core is in a convex spherical shape, and the bottom of the second piston cavity is in a concave spherical shape and is matched with the lower end of the second hammer core.
Compared with the prior art, the invention has the following advantages:
1. in an initial state, a first hammer core is positioned at the upper end of a first piston cavity, a second hammer core is positioned at the upper end of a second piston cavity, when pile driving is needed, a third electromagnetic valve on a communicating pipe and a second electromagnetic valve on a first exhaust pipe are closed, the second piston cavity is separated from the first piston cavity, a first electromagnetic valve on a first air inlet pipe is opened, steam passes through the first piston cavity, the first hammer core and the second hammer core are simultaneously released through a lifting mechanism, the first hammer core rapidly moves downwards under the action of self gravity and the steam, the second hammer core moves downwards under the action of self gravity, the first hammer core falls at a high speed, when the first hammer core hammers an anvil, the second hammer core only hammers the bottom of the second piston cavity to realize two times of rapid hammering, and then the first hammer core and the second hammer core are lifted to an initial position through the lifting mechanism to realize continuous hammering, the hammering time interval of the first hammer core and the second hammer core is short, so that the hammering times are increased, and the piling efficiency is improved; in addition, when the first hammer core contacts the anvil iron, the third electromagnetic valve on the communication pipe can be opened at the same time, so that steam in the first piston cavity can enter the second piston cavity, and the downward hammering speed of the second hammer core is increased;
2. the first hammer core and the second hammer core are respectively arranged in the first piston cavity and the second piston cavity in a sliding mode along the fixed pipe, the first lifting structure and the second lifting structure are started simultaneously to drive the first hammer core and the second hammer core to upwards slide along the fixed pipe, when the first hammer core slides to the upper end of the first piston cavity, the second hammer core continues to upwards slide to the upper end of the second piston cavity, the first hammer core and the second hammer core return to the initial positions to wait for next hammering, and the operation is simple;
3. the winch is started to wind the first pull rope, the first pull rope drives the first limiting block to move upwards along the two sliding groove holes, so that the first hammer core moves upwards, the two sliding groove holes can limit the sliding range of the first limiting block and the first hammer core, the first hammer core can be prevented from rotating, and the structure is simple;
4. the other winch is started to wind the second pull rope, the second pull rope drives the second limiting block to move upwards along the two sliding groove holes, so that the second hammer core moves upwards, the two sliding groove holes can limit the sliding range of the second limiting block and the second hammer core, the second hammer core can be prevented from rotating, and the structure is simple; in addition, the first limiting block and the second limiting block both slide in the two sliding groove holes, so that the first hammer core and the second hammer core are always in a coaxial state, and the hammering position is ensured to be unchanged;
5. the pile sleeve can prevent the knocking block from inclining when the pile leg is knocked, and plays a role in auxiliary guiding;
6. the limiting plate can limit the upward sliding distance of the first hammer core, so that the upper end of the first hammer core is always positioned below the first air inlet pipe and the first exhaust pipe, when the first air inlet pipe passes through steam, the steam can quickly push the first hammer core to move downwards, and when the first hammer core moves upwards, air above the first hammer core can be quickly exhausted through the first exhaust pipe, and the structure is simple;
7. when steam in the first piston cavity enters the second piston cavity through the communicating pipe, the communicating pipe with the upper end in the shape of the outward-expanding horn can improve the speed of the steam entering the second piston cavity and increase the thrust of the second hammer core;
8. when the first hammer core contacts the anvil, the spherical lower end can transmit the hammering force to the knocking block in a concentrated manner, and the first hammer core and the anvil can be prevented from sliding relatively; when the second hammer core contacts the bottom of the second piston cavity, the spherical lower end can transmit the hammering force to the first hammer core in a concentrated manner, and the second hammer core and the first hammer core can be prevented from sliding relatively.
Drawings
FIG. 1 is a schematic structural view of the invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at A;
FIG. 3 is a cross-sectional view taken at B-B of FIG. 2;
fig. 4 is a cross-sectional view at C-C in fig. 2.
In the figure, 1 pile cylinder; 11. a first intake pipe; 111. a first solenoid valve; 112. a steam generator; 12. a first exhaust pipe; 121. a second solenoid valve; 13. a first air hole; 14. a first piston chamber; 15. an anvil iron; 16. a fixed tube; 161. a first stopper; 162. a second limiting block; 163. a sliding slot hole; 17. a limiting plate; 2. knocking the block; 3. pile cover; 4. a first hammer core; 41. a second piston chamber; 411. a second air hole; 42. a first perforation name; 43. a second perforation; 431. a first groove; 44. a communicating pipe; 441. a third electromagnetic valve; 5. a second hammer core; 51. a third perforation; 511. a second groove; 6. a first pulley; 61. a first pull cord; 62. a first capstan; 7. a second pulley; 71. a second pull cord; 72. a second capstan; 8. pile legs; 9. and a controller.
Detailed Description
The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.
As shown in fig. 1 to 4, a dual-mass steam pile hammer comprises a pile barrel 1, a first air inlet pipe 11, a first air outlet pipe 12, a plurality of first air holes 13, a first hammer core 4, a second hammer core 5 and a lifting mechanism.
The pile barrel is characterized in that a first piston cavity 14 is arranged in the pile barrel 1, an anvil 15 is arranged at the bottom of the first piston cavity 14, the lower end of the pile barrel 1 is fixedly provided with a knocking block 2, and the anvil 15 is fixedly connected with the upper side face of the knocking block 2.
The first air inlet pipe 11 is fixedly connected to the upper end of the pile barrel 1 and communicated with the top of the first piston cavity 14, a first electromagnetic valve 111 is arranged on the first air inlet pipe 11, the first air inlet pipe 11 is communicated with steam generation equipment, and preferably, the steam generation equipment is a steam generator 112.
The first exhaust pipe 12 is fixedly connected to the upper end of the pile barrel 1 and communicated with the top of the first piston cavity 14, a second electromagnetic valve 121 is arranged on the first exhaust pipe 12, and the first exhaust pipe 12 is communicated with the outside.
The first air holes 13 are circumferentially formed in the lower end of the first piston cavity 14 and are communicated with the outside.
The first hammer core 4 is arranged in the first piston cavity 14 in a vertically sliding mode, air below the first hammer core 4 is discharged through the first air holes 13, the second piston cavity 41 is arranged in the first hammer core 4, a plurality of second air holes 411 and a plurality of first air holes 13 are formed in the bottom of the second piston cavity 41, the second air holes 411 correspond to the first air holes 13 in a one-to-one mode, when the first hammer core 4 moves downwards to contact with the anvil iron 15, the second air holes 411 are communicated with the corresponding first air holes 13, a communicating pipe 44 is arranged at the upper end of the first hammer core 4, the communicating pipe 44 is communicated with the top of the second piston cavity 41, a third electromagnetic valve 441 is arranged on the communicating pipe 44, and the third electromagnetic valve 441 is electrically connected with the controller 9.
The second hammer core 5 is arranged in the second piston chamber 41 in a vertically sliding manner, and air below the second hammer core 5 is discharged through the second 411.
The lifting mechanism is arranged in the pile barrel 1, and the lifting mechanism can drive the first hammer core 4 and the second hammer core 5 to move upwards and stop at any position.
The outer side of the pile cylinder 1 is provided with a controller 9, and the first electromagnetic valve 111, the second electromagnetic valve 121 and the third electromagnetic valve 441 are all electrically connected with the controller 9.
In an initial state, the first hammer core 4 is located at the upper end of the first piston cavity 14, the second hammer core 5 is located at the upper end of the second piston cavity 41, when pile driving is required, the third electromagnetic valve 441 on the communication pipe 44 and the second electromagnetic valve 121 on the first exhaust pipe 12 are closed, the second piston cavity 41 is separated from the first piston cavity 14, the first electromagnetic valve 111 on the first air inlet pipe 11 is opened, steam is led into the first piston cavity 14, the first hammer core 4 and the second hammer core 5 are simultaneously released through the lifting mechanism, the first hammer core 4 rapidly moves downwards under the action of self gravity and the steam, the second hammer core 5 moves downwards under the action of self gravity, because the falling speed of the first hammer core 4 is high, after the first hammer core 4 hammers the anvil 15, the second hammer core 5 hammers the bottom of the second piston cavity 41 to realize rapid hammer hammering twice, and then the first electromagnetic valve 111 is closed, the second electromagnetic valve 121 is opened, the first hammer core 4 and the second hammer core 5 are lifted to the initial positions through the lifting mechanism, air above the first hammer core 4 is discharged through the first exhaust pipe 12, continuous hammering is achieved, hammering times are increased due to the fact that the hammering time interval of the first hammer core 4 and the second hammer core 5 is short, and piling efficiency is improved; in addition, when the first hammer core 4 contacts the anvil 15, the third solenoid valve 441 on the communication pipe 44 may be opened at the same time, so that the steam in the first piston chamber 14 may enter the second piston chamber 41, the hammering speed of the second hammer core 5 may be increased, and when the second hammer core 5 is lifted up, the air above the second hammer core 5 may be discharged through the communication pipe 44.
Specifically, the lifting mechanism includes a first aperture 42, a second aperture 43, a third aperture 51, a stationary tube 16, two slotted slide holes 163, a first lifting structure, and a second lifting structure.
The first through hole 42 and the second through hole 43 are coaxially formed in the upper end and the lower end of the first hammer core 4 and are both communicated with the second piston cavity 41, and the third through hole 51 is coaxially formed in the second hammer core 5 and penetrates through the upper end and the lower end of the second hammer core 5.
The fixed tube 16 is coaxially and fixedly arranged in the first piston cavity 14, the lower end of the fixed tube 16 is fixedly connected with the anvil 15, and the upper end of the fixed tube 16 sequentially passes through the second through hole 43, the third through hole 51 and the first through hole 42 and the end part of the fixed tube extends out of the upper end of the pile barrel 1. The fixed tube 16 and the first, second and third perforations 42, 43, 51 are slidably and sealingly disposed.
The two sliding slot holes 163 are symmetrically formed on the fixed pipe 16 along the length direction.
The first lifting structure is disposed in the first hammer core 4, and the first lifting structure can drive the first hammer core 4 to slide along the fixed pipe 16 to the upper end of the first piston chamber 14.
The second lifting structure is disposed in the second hammer core 5, and the second lifting structure can drive the second hammer core 5 to slide to the upper end of the second piston chamber 51 along the fixed pipe 16.
The first hammer core 4 and the second hammer core 5 are respectively arranged in the first piston cavity 14 and the second piston cavity 41 in a sliding mode along the fixed pipe, the first lifting structure and the second lifting structure are started simultaneously, the first hammer core 4 and the second hammer core 5 are driven to upwards slide along the fixed pipe 16, when the first hammer core 4 slides to the upper end of the first piston cavity 14, the second hammer core 5 continues to upwards slide to the upper end of the second piston cavity 41, the first hammer core 4 and the second hammer core 5 return to the initial position, next hammering is waited, and the operation is simple.
Specifically, the first lifting structure includes two first grooves 431, a first stopper 161, and a first driving structure.
Two first grooves 431 are symmetrically formed in the side wall of the second through hole 43 of the first hammer core 4.
The first limiting block 161 is horizontally inserted into the two sliding slot holes 163, and the left and right sides of the first limiting block 161 respectively extend out of the two sliding slot holes 163 and the end portions of the first limiting block 161 extend into the two first grooves 431.
The first driving structure is disposed at the upper end of the pile tube 1, and the first driving structure can drive the first limiting block 161 to move upwards along the two sliding slot holes 163.
The first driving structure is started to drive the first limiting block 161 to move upwards along the two sliding slot holes 163, so that the first hammer core 4 moves upwards, the two sliding slot holes 163 can limit the sliding range of the first limiting block 161 and the first hammer core 4, the first hammer core 4 can be prevented from rotating, and the structure is simple.
Specifically, the first drive structure includes the first pulley 6 and the first rope 61.
The first pulley 6 is rotatably arranged at the upper end of the pile barrel 1.
One end of the first pulling rope 61 is fixedly arranged on the first limiting block 161, and the other end thereof penetrates upwards through the fixed pipe 16 and winds around the first pulley 6, and the end part is connected with a winch, preferably, the winch is a first winch 62.
When the first hammer core 4 needs to be lifted, the first winch 62 is started to wind the first pull rope 61, the first pull rope 61 drives the first limiting block 161 and the first hammer core 4 to move upwards, when the first hammer core 4 needs to be hammered downwards, the first winch 62 is started to rapidly release the first pull rope 61, and the first hammer core 4 is rapidly moved downwards under the pushing of self gravity and steam, so that the operation is simple.
Specifically, the second lifting structure includes two second grooves 511, a second stopper 162, and a second driving structure.
The two second grooves 511 are symmetrically formed in the side wall of the second hammer core 5, which is located in the third through hole 51.
The second limiting block 162 is horizontally inserted into the two sliding slot holes 163, and the left and right sides of the second limiting block 162 respectively extend out of the two sliding slot holes 163 and the end portions of the second limiting block 162 extend into the two second grooves 511.
The second driving structure is disposed at the upper end of the pile tube 1, and the second driving structure can drive the second limiting block 162 to move upward along the two sliding slot holes 163.
The second driving structure is started to drive the second limiting block 162 to move upwards along the two sliding groove holes 163, so that the second hammer core 5 moves upwards, the two sliding groove holes 163 can limit the sliding range of the second limiting block 162 and the second hammer core 5, the second hammer core 5 can be prevented from rotating, and the structure is simple.
Specifically, the second drive structure includes a second pulley 7 and a second rope 71.
The second pulley 7 is rotatably arranged at the upper end of the pile barrel 1.
One end of the second pulling rope 71 is fixedly arranged on the second limiting block 162, the other end of the second pulling rope upwards penetrates through the fixed pipe 16 to wind around the second pulley 7, and the end part of the second pulling rope is connected with another winch, namely the second winch 72.
When the second hammer core 5 needs to be lifted, the second winch 72 is started to wind the second pull rope 71, the second pull rope 71 drives the second limiting block 162 and the second hammer core 5 to move upwards, when the second hammer core 5 needs to be hammered downwards, the second winch 72 is started to release the second pull rope 71 quickly, the second hammer core 5 moves downwards quickly under the action of self gravity, and the operation is simple.
Specifically, pile cover 3 has set firmly coaxially in the lower extreme of pile section of thick bamboo 1, pile cover 3 is the tube-shape and the opening is down, strike piece 2 and be located pile cover 3.
The pile cover 3 can prevent the knocking block 2 from inclining when knocking the pile leg 8, and plays a role in auxiliary guiding.
Specifically, a limiting plate 17 is disposed at an upper end of the first piston cavity 14, and the limiting plate 17 is annular and located below the first intake pipe 11 and the first exhaust pipe 12.
Limiting plate 17 can restrict the gliding distance of first hammer core 4 upwards, makes the upper end of first hammer core 4 be located the below of first intake pipe 11 and first exhaust pipe 12 all the time, and when first intake pipe 11 passed through steam, steam can promote first hammer core 4 downstream fast, and when first hammer core 4 moved upwards, the air of first hammer core 4 top can be discharged through first exhaust pipe 12 fast, simple structure.
Preferably, the upper end of the communication pipe 44 is flared.
When the first hammer core 4 contacts the anvil 15, the third solenoid valve 441 on the communication pipe 44 is opened, so that steam above the first hammer core 4 can enter the second piston chamber 41 to push the second hammer core 5 to slide down quickly, the communication pipe 44 with the upper end in an outward-expanding horn shape can increase the speed of the steam entering the second piston chamber 41, and the thrust of the second hammer core 5 is increased.
Specifically, the lower end of the first hammer core 4 is a convex spherical surface, the upper side surface of the anvil 15 is a concave spherical surface and is matched with the lower end of the first hammer core 4, the lower end of the second hammer core 5 is a convex spherical surface, and the bottom of the second piston cavity 41 is a concave spherical surface and is matched with the lower end of the second hammer core 5.
When the first hammer core 4 contacts the anvil 15, the spherical lower end can transmit the hammering force to the knocking block 2 in a concentrated manner, and can prevent the first hammer core 4 and the anvil 15 from sliding relatively; when the second core 5 contacts the bottom of the second piston chamber 41, the spherical lower end can transmit the hammering force to the first core 4 in a concentrated manner, and can prevent the second core 5 and the first core 4 from sliding relatively.
A use method of a dual-mass steam pile hammer comprises the following steps:
s1, opening a first electromagnetic valve 111 on the first air inlet pipe 11, closing a second electromagnetic valve 121 on the first exhaust pipe 12, starting steam generation equipment, and introducing steam into the first piston cavity 14 through the first air inlet pipe 11;
s2, starting the two winches, releasing the first pull rope 61 and the second pull rope 71 at the same time, enabling the first hammer core 4 to move downwards rapidly under the pushing of self gravity and steam, and enabling the second hammer core 5 to move downwards rapidly under the action of self gravity;
s3, when the anvil iron 15 is hammered by the first hammer core 4, the second air hole 411 is communicated with the first air hole 13, the second pull rope 71 is continuously released, the second hammer core 5 continuously moves downwards, air below the second hammer core 5 is discharged through the second air hole 411 and the first air hole 13, meanwhile, the third electromagnetic valve 441 on the communication pipe 44 is opened, steam above the first hammer core 4 enters the second piston cavity 41 through the communication pipe 44, and the second hammer core 5 in the east of the head rapidly moves downwards, so that secondary alternate hammering is completed;
s4, the first solenoid valve 11 of the first air inlet pipe 11 is closed, the second solenoid valve 121 of the first exhaust pipe 12 and the third solenoid valve 441 of the connection pipe 44 are opened, the two winches are started, and the first pull rope 61 and the second pull rope 71 are wound at the same time, so that the first hammer core 4 and the second hammer core 5 return to the initial positions, and the above operations are repeated to hammer the spud leg 8 continuously.
Because the first hammer core 4 and the second hammer core 5 move downwards simultaneously, the air below the first hammer core 4 is discharged through the first air hole 13, when the first hammer core 4 hammers the anvil iron 15, the second hammer core 5 does not contact the bottom of the second piston cavity 41 at the moment, but under the action of self gravity and steam, the bottom of the second piston cavity 41 is quickly hammered, the air below the second hammer core 5 is discharged through the second air hole 411 and the first air hole 13, the time interval of two times of hammering is greatly shortened, the pile leg 8 is quickly inserted into a soil layer, the piling efficiency is improved, then the first hammer core 4 and the second hammer core 5 are quickly lifted to the initial position through the first winch 62 and the second winch 72, and the pile leg 8 is continuously hammered, so that the operation is simple.
In the description of this patent, it is to be understood that the terms "upper", "lower", "inner", "outer", and the like, as used herein, refer to an orientation or positional relationship based on that shown in the drawings, which is for convenience in describing the patent and to simplify the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered limiting of the patent.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Claims (10)
1. The use method of the double-mass steam pile hammer is characterized by comprising the following steps of:
s1, opening a first electromagnetic valve (111) on a first air inlet pipe (11), closing a second electromagnetic valve (121) on a first exhaust pipe (12), starting steam generation equipment, and introducing steam into a first piston cavity (14) through the first air inlet pipe (11);
s2, starting the two winches, releasing the first pull rope (61) and the second pull rope (71) at the same time, enabling the first hammer core (4) to move downwards rapidly under the pushing of self gravity and steam, and enabling the second hammer core (5) to move downwards rapidly under the action of self gravity;
s3, when the first hammer core (4) hammers the anvil iron (15), the second air hole (411) is communicated with the first air hole (13), the second pull rope (71) is continuously released, the second hammer core (5) continuously moves downwards, air below the second hammer core (5) is discharged through the second air hole (411) and the first air hole (13), meanwhile, the third electromagnetic valve (441) on the communicating pipe (44) is opened, steam above the first hammer core (4) enters the second piston cavity (41) through the communicating pipe (44), the second hammer core (5) is pushed to rapidly move downwards, and secondary alternate hammering is completed;
s4, closing the first electromagnetic valve (11) on the first air inlet pipe (11), opening the second electromagnetic valve (121) on the first exhaust pipe (12) and the third electromagnetic valve (441) on the communicating pipe (44), starting the two winches, simultaneously winding the first pull rope (61) and the second pull rope (71), enabling the first hammer core (4) and the second hammer core (5) to return to the initial positions, repeating the operations, and continuously hammering the pile leg (8).
2. The use method of the dual-mass steam pile hammer according to claim 1, wherein the pile hammer comprises a pile barrel (1), a first piston cavity (14) is arranged in the pile barrel (1), an anvil iron (15) is arranged at the bottom of the first piston cavity (14), the lower end of the pile barrel (1) is fixedly provided with the knocking block (2), and the anvil iron (15) is fixedly connected with the upper side face of the knocking block (2);
the first air inlet pipe (11), the first air inlet pipe (11) is fixedly connected to the upper end of the pile barrel (1) and communicated with the top of the first piston cavity (14), a first electromagnetic valve (111) is arranged on the first air inlet pipe (11), and the first air inlet pipe (11) is communicated with steam generation equipment;
the first exhaust pipe (12) is fixedly connected to the upper end of the pile barrel (1) and communicated with the top of the first piston cavity (14), a second electromagnetic valve (121) is arranged on the first exhaust pipe (12), and the first exhaust pipe (12) is communicated with the outside;
the first air holes (13) are formed in the lower end of the first piston cavity (14) along the circumferential direction and are communicated with the outside;
the hammer comprises a first hammer core (4), wherein the first hammer core (4) is arranged in a first piston cavity (14) in a vertically sliding mode, a second piston cavity (41) is arranged in the first hammer core (4), a plurality of second air holes (411) are formed in the bottom of the second piston cavity (41), the second air holes (411) correspond to the first air holes (13) one by one, when the first hammer core (4) moves downwards to contact with an anvil iron (15), the second air holes (411) are communicated with the corresponding first air holes (13), a communicating pipe (44) is arranged at the upper end of the first hammer core (4), the communicating pipe (44) is communicated with the top of the second piston cavity (41), and a third electromagnetic valve (441) is arranged on the communicating pipe (44);
the second hammer core (5) is arranged in the second piston cavity (41) in a vertically sliding mode, and the second hammer core (5) is arranged in the second piston cavity (41) in a vertically sliding mode;
the lifting mechanism is arranged in the pile barrel (1), and can drive the first hammer core (4) and the second hammer core (5) to move towards the upper ends of the first piston cavity (14) and the second piston cavity (41) respectively.
3. The method of using a dual mass steam pile hammer as recited in claim 2, wherein the lifting mechanism comprises:
the first through hole (42), the second through hole (43) and the third through hole (51), the first through hole (42) and the second through hole (43) are coaxially formed in the upper end and the lower end of the first hammer core (4) and communicated with the second piston cavity (41), and the third through hole (51) is coaxially formed in the second hammer core (5) and penetrates through the upper end and the lower end of the second hammer core (5);
the fixed pipe (16) is coaxially and fixedly arranged in the first piston cavity (14), the lower end of the fixed pipe (16) is fixedly connected with the anvil iron (15), the upper end of the fixed pipe (16) sequentially penetrates through the second through hole (43), the third through hole (51) and the first through hole (42), and the end part of the fixed pipe extends out of the upper end of the pile barrel (1);
the two sliding groove holes (163) are symmetrically formed in the fixed pipe (16) along the length direction;
the first lifting structure is arranged in the first hammer core (4) and can drive the first hammer core (4) to slide to the upper end of the first piston cavity (14) along the fixed pipe (16);
and the second lifting structure is arranged in the second hammer core (5), and can drive the second hammer core (5) to slide to the upper end of the second piston cavity (51) along the fixed pipe (16).
4. The method of using a dual mass steam pile hammer as recited in claim 3, wherein the first lifting structure comprises:
two first grooves (431), wherein the two first grooves (431) are symmetrically arranged on the side wall of the first hammer core (4) positioned on the second through hole (43);
the first limiting block (161) is horizontally inserted into the two sliding groove holes (163), the left side and the right side of the first limiting block (161) respectively extend out of the two sliding groove holes (163), and the end parts of the first limiting block (161) extend into the two first grooves (431);
the pile driving mechanism comprises a first driving structure, wherein the first driving structure is arranged at the upper end of the pile barrel (1), and the first driving structure can drive a first limiting block (161) to move upwards along two sliding groove holes (163).
5. The method of using a dual mass steam pile hammer as recited in claim 4, wherein the first drive structure comprises:
the first pulley (6), the said first pulley (6) is set up in the upper end of the pile cylinder (1) rotatably;
one end of the first pull rope (61) is fixedly arranged on the first limiting block (161), the other end of the first pull rope (61) penetrates upwards through the fixed pipe (16) to wind around the first pulley (6), and the end part of the first pull rope is connected with a winch.
6. The method of using a dual mass steam pile hammer as recited in claim 5, wherein the second lifting structure comprises:
the two second grooves (511) are symmetrically formed in the side wall, located on the third through hole (51), of the second hammer core (5);
the second limiting block (162) is horizontally inserted into the two sliding groove holes (163), the left side and the right side of the second limiting block (162) respectively extend out of the two sliding groove holes (163), and the end parts of the second limiting block (162) extend into the two second grooves (511);
the second driving structure is arranged at the upper end of the pile barrel (1), and the second driving structure can drive the second limiting block (162) to move upwards along the two sliding groove holes (163).
7. The method of using a dual mass steam pile hammer as recited in claim 6, wherein the second drive structure comprises:
the second pulley (7), the said second pulley (7) is rotated and set up in the upper end of the pile cylinder (1);
and one end of the second pull rope (71) is fixedly arranged on the second limiting block (162), the other end of the second pull rope (71) penetrates upwards through the fixed pipe (16) to wind around the second pulley (7), and the end part of the second pull rope is connected with the other winch.
8. The use method of the dual-mass steam pile hammer according to claim 7, wherein a pile sleeve (3) is coaxially and fixedly arranged at the lower end of the pile barrel (1), the pile sleeve (3) is cylindrical and has a downward opening, and the knocking block (2) is located in the pile sleeve (3).
9. Use of a dual mass steam pile hammer according to claim 8, characterised in that the upper end of the first piston chamber (14) is provided with a limit plate (17), the limit plate (17) being annular and located below the first intake pipe (11) and the first exhaust pipe (12).
10. The use method of the dual mass steam pile hammer according to claim 9, wherein the lower end of the first hammer core (4) is convex spherical, the upper side of the anvil (15) is concave spherical and matched with the lower end of the first hammer core (4), the lower end of the second hammer core (5) is convex spherical, and the bottom of the second piston cavity (41) is concave spherical and matched with the lower end of the second hammer core (5).
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| CN202011516049.4A CN112681312B (en) | 2020-12-21 | 2020-12-21 | Application method of double-mass steam pile hammer |
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|---|---|---|---|---|
| GB779271A (en) * | 1954-09-20 | 1957-07-17 | Bell Noel Gonne | Improvements in pile hammers |
| CN107366286A (en) * | 2017-08-18 | 2017-11-21 | 张家港市兴鸿达基础有限公司 | A kind of piling steam hammer |
| CN207498948U (en) * | 2017-09-14 | 2018-06-15 | 天津中铁建业集团有限公司 | Double double dynamical piling machines of hammer |
| CN208266868U (en) * | 2017-11-03 | 2018-12-21 | 东台康鼎工程机械制造有限公司 | A kind of hydraulic pile hammer |
| CN110984147A (en) * | 2020-01-07 | 2020-04-10 | 上海宝冶集团有限公司 | Pile driver for building engineering |
| CN210507439U (en) * | 2019-04-03 | 2020-05-12 | 浙江中呈建设有限公司 | Piling steam hammer with telescopic ruler |
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2020
- 2020-12-21 CN CN202011516049.4A patent/CN112681312B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB779271A (en) * | 1954-09-20 | 1957-07-17 | Bell Noel Gonne | Improvements in pile hammers |
| CN107366286A (en) * | 2017-08-18 | 2017-11-21 | 张家港市兴鸿达基础有限公司 | A kind of piling steam hammer |
| CN207498948U (en) * | 2017-09-14 | 2018-06-15 | 天津中铁建业集团有限公司 | Double double dynamical piling machines of hammer |
| CN208266868U (en) * | 2017-11-03 | 2018-12-21 | 东台康鼎工程机械制造有限公司 | A kind of hydraulic pile hammer |
| CN210507439U (en) * | 2019-04-03 | 2020-05-12 | 浙江中呈建设有限公司 | Piling steam hammer with telescopic ruler |
| CN110984147A (en) * | 2020-01-07 | 2020-04-10 | 上海宝冶集团有限公司 | Pile driver for building engineering |
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| CN112681312B (en) | 2022-05-13 |
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