CN220748184U - Pile machine - Google Patents

Abstract

The utility model provides a pile machine, and relates to the technical field of pile foundation construction equipment. The pile machine comprises a supporting table, a vertical frame, a lifting device and a conveying device; the stand is fixed on the front side of the supporting table and is connected with a power head in a sliding way; the support table is supported with a plurality of drill rods which are horizontally placed, the conveying device is arranged on the support table, the hinged end of the lifting device is hinged to the output end of the conveying device, and the conveying device is used for driving the lifting device to move between one side of any drill rod and the position below the power head; the clamping part of the lifting device is used for clamping the drill rod, and the lifting device is used for rotating between the supporting table and the vertical frame so that the drill rod clamped by the clamping part is switched from a horizontal state to a vertical state. The pile driver can sequentially connect the horizontally placed drill rods with the power head through the mutual matching of the lifting device and the conveying device to realize orderly connection rods, and meanwhile, the horizontal distribution of the drill rods can reduce the center of gravity of the drill rods, prevent the center of gravity of the pile driver from shifting towards the front end and reduce the pressure of the drill rods on the pile driver.

Description

Pile machine

Technical Field

The utility model relates to the technical field of pile foundation construction equipment, in particular to a pile machine.

Background

Pile foundation is divided into precast pile and bored concrete pile, the bored concrete pile is usually constructed by cast-in-situ technology, and specifically, during construction, the bored concrete pile can be formed by drilling holes at the designed pile position of soil body and then pouring concrete into Kong Naxian, and after the concrete is solidified.

A pile machine is a construction apparatus for constructing a cast-in-place pile, which is usually equipped with a hollow drilling tool and with a power head for driving the drilling tool in rotation. The power head is connected to the guide rail of the vertical frame on the pile driver in a sliding mode, and the power head can drive the drilling tool to lift under the driving of the lifting driving device at the vertical frame. The drilling tool on the pile machine is used for descending and rotating in the process of drilling so as to drill holes in soil, and the drilling tool is used for ascending in the process of lifting the drilling tool and serving as a channel for pouring concrete so as to enable the concrete to accurately fall into pile holes below the drilling tool.

According to the structure of drilling tool, current stake machine falls into two types, and the first type is traditional stake machine, and traditional stake machine is for satisfying pile foundation design length requirement, and the drilling tool length that its was equipped is usually greater than pile foundation design length, but because the weight of the unit head of drilling tool top (weight reaches 10 ~ 20 tons) is heavier and drilling tool needs perpendicular to ground to go up and down, consequently traditional stake machine very easily takes place the upset danger in the work progress, especially when pile foundation design length is longer, like pile foundation design length is not less than 80 meters, traditional stake machine probability of overturning is very high and is unable to realize pile foundation construction. In order to reduce the overturning risk of the traditional pile machine, a second pile machine is generated, as disclosed in CN216381270U, CN105756060A, CN107023267B, a drilling tool provided for the second pile machine is a combined drilling tool, wherein the combined drilling tool is formed by sequentially connecting a plurality of drilling rods, in the construction process, the drilling rods are erected on the pile machine side by side, when the drilling is required, one of the plurality of erected drilling rods moves to the lower part of a power head and is connected with the power head, then the drilling is carried out under the driving of the power head, after the drilling of the drilling rods is finished, the power head is lifted up, the next drilling rod moves to the lower part of the power head and is connected with the power head, meanwhile, the drilling rods are connected with the drilling rods which are already drilled, then the drilling is carried out under the driving of the power head, and the drilling rods are sequentially connected and are sequentially drilled down by repeating the processes, so that the whole drilling depth of the drilling tool accords with the designed pile length.

Because the second pile driver sequentially connects and drills the drill rods after being segmented in the drilling tool in the construction process, compared with the traditional pile driver, the power head of the second pile driver has lower lifting height, and the collapse risk can be reduced. However, the second pile driver is mostly used in the construction process of light-weight small-diameter short piles, and the drill rods adopted on pile foundations can be pulled up by one person. When constructing a large-diameter ultra-long pile with the diameter of 400 mm or more, the length and weight requirements of each drill rod in the drilling tool are correspondingly increased (the weight of each drill rod is increased by tens of times and can reach 3-6 tons), and as each drill rod is required to be erected for standby in the construction process and the power head and the stand are required to be arranged at the front end of the pile machine, the center of gravity of the drill rod on the second type pile machine is higher, the center of gravity of the pile machine is caused to deviate, and the collapse risk is increased. In addition, when the drill rod is erected and is to be used, the contact area of the drill rod and the pile machine is small, larger pressure can be generated on the pile machine, and the pile machine is easy to damage.

Disclosure of Invention

The utility model aims to provide a pile machine, which is used for relieving the technical problems that in the prior art, in the construction process of the pile machine provided with a combined drilling tool, each drill rod in the combined drilling tool is required to be erected for later use, and a power head and a vertical frame on the pile machine are required to be arranged at the front end of the pile machine, so that the gravity center of the drill rod is higher, the gravity center of the pile machine is caused to deviate towards the front end of the pile machine, the collapse risk is increased, the contact area of the drill rod and the pile machine is small when the drill rod is erected for later use, larger pressure is generated on the pile machine, and the pile machine is easy to damage.

In a first aspect, the utility model provides a pile machine, comprising a supporting table, a vertical frame, a lifting device and a conveying device;

the supporting table comprises a front side and a tail side, the stand is fixed on the front side of the supporting table, and a power head is connected to the stand in a sliding manner and can lift on the stand;

the lifting device comprises a hinged end and a clamping part, the conveying device comprises an output end, the conveying device is arranged on the supporting table, the hinged end of the lifting device is hinged to the output end of the conveying device, and the conveying device is used for driving the lifting device to move on the supporting table so as to drive the lifting device to move between one side of any drill rod and a position below the power head;

the clamping part of the lifting device is used for clamping any drill rod when the lifting device moves to one side of the drill rod, and the lifting device is used for rotating between the supporting table and the vertical frame by taking the hinged end of the lifting device as a rotation center so as to switch the drill rod clamped by the clamping part from a horizontal state to a vertical state.

In an alternative embodiment, a plurality of drill rods which are horizontally placed on the supporting table are sequentially distributed along the direction perpendicular to the central shaft of the power head;

the conveying device comprises a sliding component, the sliding component is connected with the hinged end of the lifting device, and the sliding component is used for driving the lifting device to move along the distribution direction of a plurality of drill rods on a horizontal plane so as to drive the lifting device to move to one side of any drill rod.

In an alternative embodiment, the sliding assembly comprises a guide rail and a sliding block, wherein the guide rail is arranged on the supporting table and extends along the distribution direction of the drill rod, and the sliding block is connected to the guide rail in a sliding manner;

the hinged end of the lifting device is hinged to the sliding block.

In an alternative embodiment, the lifting device comprises a robotic arm and a lifting drive assembly;

the clamping part is arranged on the mechanical arm, one end of the mechanical arm is the hinged end of the lifting device, and the output end of the lifting driving assembly is connected with the mechanical arm and used for driving the mechanical arm to rotate between the supporting table and the vertical frame so as to switch between a horizontal state and a vertical state.

In an alternative embodiment, the mechanical arm includes a front surface and a back surface, the front surface of the mechanical arm faces the supporting table when the mechanical arm is in a horizontal state, and the clamping part is arranged on the front surface of the mechanical arm.

In an alternative embodiment, the slip assembly is disposed between the stand and a plurality of the drill rods, and the conveyance device further comprises a rotation assembly;

the rotating assembly is arranged between the sliding assembly and the hinged end of the lifting device, and is used for driving the mechanical arm to rotate by taking the central shaft of the mechanical arm as a rotating shaft after the mechanical arm rotates to be in a vertical state, so that the clamping part on the mechanical arm faces the vertical frame.

In an alternative embodiment, the front side of the supporting table is provided with an extension bracket, and the sliding component is arranged on the extension bracket and is positioned on one side of the stand, which is opposite to the drill rods.

In an alternative embodiment, the pile driver further comprises a movable counterweight device, wherein the movable counterweight device is mounted on the tail side of the supporting table and is used for moving along a direction close to or far from the front side of the supporting table when the weight of the vertical frame and the position of the supporting table where a plurality of drill rods are placed changes, so as to adjust the gravity center position of the pile driver.

In an alternative embodiment, the drill rod supporting device further comprises a bracket assembly, the bracket assembly comprises a plurality of brackets, the brackets are arranged between the stand and the tail side of the supporting table along the axial direction of the drill rod at intervals, each bracket is provided with a clamping part, and the clamping parts on the brackets are positioned on the same straight line so as to support the same drill rod.

In an optional embodiment, the bracket is of a telescopic structure, and the bracket can drive the clamping part to lift in the telescopic process.

The pile machine provided by the utility model comprises a supporting table, a vertical frame, a lifting device and a conveying device; the supporting table comprises a front side and a tail side, the stand is fixed on the front side of the supporting table, and the stand is connected with a power head in a sliding manner, and the power head can be lifted on the stand; the lifting device comprises a hinged end and a clamping part, the conveying device comprises an output end, the conveying device is arranged on the supporting table, the hinged end of the lifting device is hinged to the output end of the conveying device, and the conveying device is used for driving the lifting device to move on the supporting table so as to drive the lifting device to move between one side of any drill rod and a position below the power head; the clamping part of the lifting device is used for clamping any drill rod when the lifting device moves to one side of the drill rod, and the lifting device is used for rotating between the supporting table and the vertical frame by taking the hinged end of the lifting device as a rotation center so as to switch the drill rod clamped by the clamping part from a horizontal state to a vertical state. The pile machine provided by the utility model is used for constructing cast-in-situ bored concrete piles, and is especially suitable for constructing bored concrete piles with larger diameters, such as bored concrete piles with diameters not smaller than 400 mm. The drill pipes which are supported on the supporting table of the pile machine and are horizontally placed are used for being connected in sequence to form a drilling tool with a drill bit, and based on the drill pipes, only one drill pipe in the drill pipes is provided with the drill bit, the drill pipe is called a first-use drill pipe, and the rest drill pipes are called standby drill pipes. In the process of constructing the cast-in-place pile, the first drill rod and the standby drill rod can be horizontally placed on the supporting table, then the first drill rod and the standby drill rod are sequentially moved to the lower part of the power head and connected with the power head, the first drill rod can be directly connected to the lower part of the power head, the standby drill rod is horizontally placed on the supporting table, and then the standby drill rod is moved to the lower part of the power head and connected with the power head. Because the first drill rod is directly connected below the power head, the construction time can be saved, and meanwhile, the standby drill rod horizontally placed on the supporting table can play a role in counterweight, so that the gravity center of the pile machine is effectively prevented from shifting forward, and the first drill rod is preferably directly connected below the power head before the cast-in-place pile is constructed. In the subsequent cast-in-place pile construction process, the spare drill rod and the first drill rod are connected, and even a plurality of spare drill rods are connected in sequence to form the drilling tool meeting the requirement of the designed pile length. In the process of connecting the standby drill rod and the first drill rod, the power head needs to be lowered on the vertical frame and started, so that the power head drives the first drill rod to be lowered and rotated, and the first drill rod is drilled into soil. After the top end of the first-use drill rod is flush with or slightly higher than the ground, the power head is separated from the first-use drill rod, and then the power head rises on the vertical frame and returns to the initial position, wherein in the process that the power head drives the first-use drill rod to descend or ascend, the conveying device can also be made to move on the supporting table so as to drive the lifting device to move to one side of one standby drill rod, and then the clamping part of the lifting device is started, so that the clamping part clamps the standby drill rod. When the power head rises up on the vertical frame, the lifting device is started again, the lifting device rotates between the supporting table and the vertical frame by taking the hinged end of the lifting device as a rotation center, so that the standby drill rod clamped by the clamping part is switched from a horizontal state to a vertical state, then the conveying device is started, and the standby drill rod clamped by the clamping part of the lifting device is conveyed to the lower part of the power head by the conveying device. After the spare drill rod is moved to the lower part of the power head, the top end of the spare drill rod is connected with the power head, and then the clamping part of the lifting device is enabled to loosen the spare drill rod and enable the lifting device to reversely rotate back to the original position for the next use. After the clamping part loosens the standby drill rod, the power head descends to drive the standby drill rod to descend, when the standby drill rod descends to the point that the bottom end of the standby drill rod contacts with the top end of the first drill rod, the bottom end of the standby drill rod is connected with the top end of the first drill rod, and then the power head is started to drive the standby drill rod and the first drill rod to rotate simultaneously, so that the standby drill rod also descends into a soil body. The process of lifting the power head, moving the spare drill rod to the lower part of the power head by utilizing the mutual cooperation of the conveying device and the lifting device, connecting the power head with the spare drill rod and tripping the spare drill rod is repeated, the subsequent spare drill rod can be sequentially connected with the previous spare drill rod and tripping the spare drill rod, finally, a drilling tool formed by sequentially connecting the first drill rod and a plurality of spare drill rods is formed in the soil body, and the drilling tool can meet the design pile length requirement of the cast-in-place pile. In the process of the connecting rod and the drill, the lifting process of the power head on the vertical frame and the process of moving the standby drill rod between the supporting table and the power head can cause the weight of the vertical frame to change, but because the standby drill rod of the supporting table sequentially moves to the lower part of the power head and is horizontally arranged between the vertical frame and the tail side of the supporting table, the standby drill rod which is not moved can play a good balance weight role, so that the gravity center of the pile machine is sufficiently prevented from shifting to the vertical frame of the pile machine, the balance and stability of the pile machine are sufficiently ensured, and the collapse risk is reduced. More importantly, because each spare drill rod is connected with the drill rod in the soil body after the power head descends and the spare drill rod can immediately drill down into the soil body after the power head descends and the spare drill rod is connected with the drill rod, the weight of the upright post is not continuously increased along with the operation of the connecting rod, even if all the spare drill rods on the supporting table complete the process of connecting rod and drilling, the gravity center of the pile machine still cannot be greatly changed when the spare drill rod is not distributed on the supporting table, and the stability of the pile machine can still be ensured. In addition, in the pile driver provided by the utility model, the plurality of drill rods are horizontally arranged on the supporting table, so that the contact area between the drill rods and the pile driver is large, large pressure can not be generated on the pile driver, and the structural stability of the pile driver can be effectively ensured.

Compared with the existing pile machine, the pile machine provided by the utility model can sequentially connect the horizontally placed drill rods with the power head through the mutual matching of the lifting device and the conveying device so as to realize orderly connection rods, so that the drill rods on the supporting table can be horizontally distributed between the stand and the tail side of the supporting table, the situation that a large amount of vertical drill rods are accumulated at the stand can not occur, the drill rods are horizontally distributed between the stand and the tail side of the supporting table, the gravity center of the drill rods can be effectively reduced, the pile machine can be balanced, the deviation of the gravity center of the pile machine to the stand can be effectively prevented, the pressure of the horizontally distributed drill rods on the pile machine can be effectively reduced, and the pile machine is prevented from being damaged.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are needed in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the present utility model, and other drawings can be obtained according to the drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural diagram of a pile driver according to an embodiment of the present utility model;

fig. 2 is a schematic structural diagram of a pile driver when a clamping part clamps a drill rod according to an embodiment of the present utility model;

FIG. 3 is a schematic structural diagram of a pile driver when a power head drives a first drill rod to drill down;

fig. 4 is a schematic structural diagram of a pile machine when a conveying device drives a lifting device to move according to an embodiment of the present utility model;

fig. 5 is a schematic structural diagram of a pile machine when the lifting device provided by the embodiment of the utility model rotates;

fig. 6 is a schematic structural view of a pile driver with a stand-by drill rod clamped by a clamping part in an upright state and a power head in a lifting process according to an embodiment of the present utility model;

fig. 7 is a schematic structural diagram of a pile machine in which a standby drill rod clamped by a clamping part is in an upright state and a power head is lifted;

FIG. 8 is another schematic structural view of a pile driver with a stand-by drill pipe clamped by a clamping part in an upright state and an ascending power head according to an embodiment of the present utility model;

fig. 9 is a schematic structural view of a pile machine when a mechanical arm provided by the embodiment of the utility model is in an upright state and a rotating assembly is arranged at a hinge end of the mechanical arm;

Fig. 10 is a schematic structural view of a pile driver when a spare drill rod clamped by a clamping part provided by the embodiment of the utility model is in an upright state and is positioned below a power head;

FIG. 11 is a schematic structural view of a pile driver when a power head is connected with a spare drill rod and a clamping part releases the spare drill rod according to the embodiment of the present utility model;

fig. 12 is a schematic structural diagram of a pile driver when a power head drives a standby drill pipe to descend according to an embodiment of the present utility model;

FIG. 13 is a side view of a lifting device, a bracket assembly and a support table when a gripping portion grips a backup drill rod provided by an embodiment of the present utility model;

FIG. 14 is a side view of the lifting device, bracket assembly and support table of the clamping portion of the present utility model when clamping another alternate drill rod;

fig. 15 is another schematic structural view of a pile driver according to an embodiment of the present utility model;

fig. 16 is a schematic view of another construction of a pile driver according to an embodiment of the present utility model.

Icon: 1-a supporting table; 10-extending a stent; 2-a vertical frame; 20-a power head; 200-positioning plates; 3-lifting devices; 30-a clamping part; 31-a mechanical arm; 4-a conveyor; 40-a slip assembly; 41-a rotating assembly; 5-a drill rod; 6, a walking device; 7-moving a counterweight device; 8-a bracket assembly; 80-bracket.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Some embodiments of the present utility model are described in detail below with reference to the accompanying drawings. The following embodiments and features of the embodiments may be combined with each other without conflict.

Examples:

as shown in fig. 1 to 14, the pile machine provided in this embodiment includes a supporting table 1, a vertical frame 2, a lifting device 3, and a conveying device 4; the support table 1 comprises a front side and a tail side, the stand 2 is fixed on the front side of the support table 1, the stand 2 is connected with the power head 20 in a sliding manner, and the power head 20 can be lifted on the stand 2; a plurality of horizontally placed drill rods 5 are supported at positions of the supporting table 1 between the tail side of the supporting table and the vertical frame 2, the lifting device 3 comprises a hinged end and a clamping part 30, the conveying device 4 comprises an output end, the conveying device 4 is arranged on the supporting table 1, the hinged end of the lifting device 3 is hinged to the output end of the conveying device 4, and the conveying device 4 is used for driving the lifting device 3 to move on the supporting table 1 so as to drive the lifting device 3 to move between one side of any drill rod 5 and a position below the power head 20; the gripping part 30 of the lifting device 3 is used for gripping any drill rod 5 when the lifting device 3 moves to one side of the drill rod 5, and the lifting device 3 is used for rotating between the supporting table 1 and the vertical frame 2 by taking the hinged end of the lifting device as a rotation center so as to switch the drill rod 5 gripped by the gripping part 30 from a horizontal state to an upright state.

The pile machine provided by the embodiment is used for constructing cast-in-situ bored concrete piles, and is particularly suitable for constructing bored concrete piles with larger diameters, such as bored concrete piles with diameters not smaller than 400 mm. The plurality of horizontally placed drill rods 5 supported on the support table 1 of the pile driver are used for sequentially connecting to form a drilling tool with a drill bit, and based on the drilling tool, only one drill rod 5 of the plurality of drill rods 5 is provided with the drill bit, the drill rod 5 is called a first drill rod 5, and the rest of drill rods 5 are called standby drill rods 5.

In the process of constructing the cast-in-place pile, the first drill rod 5 and the standby drill rod 5 can be horizontally placed on the supporting table 1, then the first drill rod 5 and the standby drill rod 5 are sequentially moved to the lower side of the power head 20 and connected with the power head 20, or as shown in fig. 1 and 2, the first drill rod 5 is directly connected to the lower side of the power head 20, the standby drill rod 5 is horizontally placed on the supporting table 1, and then the standby drill rod 5 is moved to the lower side of the power head 20 and connected with the power head 20. Because the first drill rod 5 is directly connected to the lower part of the power head 20, the construction time can be saved, and meanwhile, the standby drill rod 5 horizontally placed on the supporting table 1 can play a role of counterweight, so that the gravity center of the pile machine is effectively prevented from shifting forward, and the first drill rod 5 is preferably directly connected to the lower part of the power head 20 before the cast-in-place pile is constructed.

In the subsequent construction process of the cast-in-place pile, the standby drill rods 5 and the first drill rods 5 are connected, and even a plurality of standby drill rods 5 are connected in sequence when the pile foundation is longer so as to form the drilling tool meeting the requirement of the designed pile length. In the process of connecting the standby drill pipe 5 and the first drill pipe 5, as shown in fig. 3, the power head 20 is required to descend on the stand 2 and start the power head 20, so that the power head 20 drives the first drill pipe 5 to descend and rotate, and the first drill pipe 5 is driven to drill into the soil. After the top end of the first drill rod 5 is flush with or slightly higher than the ground, the power head 20 is separated from the first drill rod 5, as shown in fig. 5, 6 and 7, so that the power head 20 ascends and returns to the initial position in the vertical frame 2, and in the process that the power head 20 drives the first drill rod 5 to descend or ascend, as shown in fig. 3 and 4, the conveying device 4 moves on the supporting table 1 to drive the lifting device 3 to move to one side of one standby drill rod 5, and then the clamping part 30 of the lifting device 3 is started, so that the clamping part 30 clamps the standby drill rod 5, as shown in fig. 13. When the power head 20 rises up on the stand 2, as shown in fig. 5, 6 and 7, the lifting device 3 may also be started, so that the lifting device 3 rotates between the support table 1 and the stand 2 with the hinged end thereof as a rotation center, thereby switching the standby drill rod 5 clamped by the clamping part 30 from a horizontal state to an upright state, and then, as shown in fig. 8, 9 and 10, the conveying device 4 is started, and the standby drill rod 5 clamped by the clamping part 30 of the lifting device 3 is conveyed to the lower side of the power head 20 by utilizing the conveying device 4.

After the spare drill rod 5 is moved below the power head 20, the top end of the spare drill rod 5 is connected with the power head 20, and then the clamping part 30 of the lifting device 3 is enabled to release the spare drill rod 5 and enable the lifting device 3 to reversely rotate back to the original position for the next use. Further, as shown in fig. 14, the lifting device 3 can also be moved to one side of the next spare drill rod 5 by means of the conveyor device 4 in preparation for gripping the next spare drill rod 5.

After the gripping part 30 releases the spare drill rod 5, as shown in fig. 11 and 12, the power head 20 descends to drive the spare drill rod 5 to descend, when the bottom end of the spare drill rod 5 descends to be in contact with the top end of the first drill rod 5, the bottom end of the spare drill rod 5 is connected with the top end of the first drill rod 5, and then the power head 20 is started to drive the spare drill rod 5 and the first drill rod 5 to rotate simultaneously, so that the spare drill rod 5 also descends into a soil body.

The process of lifting the power head 20, moving the standby drill rod 5 to the lower part of the power head 20 by utilizing the mutual matching of the conveying device 4 and the lifting device 3, connecting the power head 20 with the standby drill rod 5 and tripping can sequentially connect the subsequent standby drill rod 5 with the previous standby drill rod 5 and tripping, and finally a drilling tool formed by sequentially connecting the first standby drill rod 5 and the standby drill rods 5 is formed in the soil body, and the drilling tool can meet the design pile length requirement of the filling pile.

It should be noted that, in the foregoing process of connecting rod and tripping, the lifting process of the power head 20 on the stand 2 and the moving process of the standby drill pipe 5 between the supporting table 1 and the power head 20 will cause the weight at the stand 2 to change, but because the standby drill pipe 5 of the supporting table 1 is sequentially moved to the lower side of the power head 20, and the standby drill pipe 5 is horizontally placed between the stand 2 and the tail side of the supporting table 1, the standby drill pipe 5 which is not moved yet can play a good weight balancing role, so as to prevent the center of gravity of the pile machine from shifting to the stand 2, and further ensure the balance and stability of the pile machine and reduce the collapse risk.

More importantly, since each spare drill rod 5 is connected with the drill rod 5 in the soil body after the power head 20 descends and the spare drill rod 5 is also immediately drilled down into the soil body after the connecting rod is connected, one drill rod 5 is connected to the top below the power head 20 on the stand 2, the weight of the stand column is not continuously increased along with the operation of the connecting rod, even if all spare drill rods 5 on the supporting table 1 are connected with the connecting rod and the drilling process, the gravity center of the pile machine is still not greatly changed when the spare drill rods 5 are not distributed on the supporting table 1, and the stability of the pile machine can still be ensured.

In addition, in the pile driver provided by the embodiment, the drill rods 5 are horizontally placed on the supporting table 1, so that the contact area between the drill rods 5 and the pile driver is large, large pressure can not be generated on the pile driver, and the structural stability of the pile driver can be effectively ensured.

Compared with the existing pile machine, the pile machine provided by the embodiment can sequentially connect the horizontally placed drill rods 5 with the power head 20 through the lifting device 3 and the conveying device 4, so that the drill rods 5 on the supporting table 1 can be horizontally distributed between the stand 2 and the tail side of the supporting table 1, the situation that a large amount of vertical drill rods 5 are stacked at the stand 2 can not occur, the drill rods 5 are horizontally distributed between the stand 2 and the tail side of the supporting table 1, the gravity center of the drill rods 5 can be effectively reduced, the pile machine can be balanced, the deviation of the gravity center of the pile machine to the stand 2 is effectively prevented, the pressure intensity of the pile machine can be effectively reduced by the horizontally distributed drill rods 5, and damage of the pile machine is prevented.

It can be seen that the pile driver provided in this embodiment can realize the orderly connection rod process of the drill rod 5 by using the conveying device 4 and the lifting device 3 to cooperate with each other, and can make the drill rod 5 safely, stably and reliably orderly lay between the stand 2 and the tail side of the supporting table 1, so that the gravity center of the pile driver cannot be inclined towards the front side of the pile driver to topple. Moreover, through planning the position of drilling rod 5 on brace table 1 in advance, can also make conveyor 4 can follow simple route orderly removal on brace table 1, make every drilling rod 5 all can be got by lifting device 3 accurate clamp and accurate removal to unit head 20 below, consequently the stake machine that this embodiment provided can also accomplish the clamp of drilling rod 5 and connect pole work through simple continuous actions such as orderly horizontal placement drilling rod 5, horizontal migration lifting device 3 and rotatory lifting device 3, has overcome the poor and unsmooth problem of connecting pole of current stake machine stability.

In this embodiment, the connection between the first drill pipe 5 and the power head 20, the connection between the spare drill pipe 5 and the power head 20, and the connection between the drill pipes 5 may be achieved manually or automatically. The automatic mode can be realized by utilizing an elastic clamping structure, and can also be realized by utilizing a telescopic driver to drive a pin to be inserted between two parts to be connected.

When the elastic clamping structure is adopted, joint structures can be arranged between the power head 20 and the drill rods 5 and between the two drill rods 5, the joint structures comprise a male joint and a female joint, one of the male joint and the female joint is provided with an elastic plug pin, the other is provided with a slot, and when the male joint and the female joint are in butt joint, the elastic plug pin can be automatically inserted into the slot; after the extrusion force is applied to the elastic plug pin, the elastic plug pin can be withdrawn from the slot, and then the separation between the male connector and the female connector can be realized. Wherein, in order to improve the connection accuracy between the power head 20 and the drill rod 5, a positioning plate 200 may be connected to the lower side of the power head 20, and the positioning plate 200 is used to abut against the circumferential side wall of the drill rod 5 when the drill rod 5 is erected below the power head 20, so that the central axis of the drill rod 5 is aligned with the central axis of the power head 20.

As shown in fig. 2, the pile machine provided in this embodiment may further include a lifting driving device, where the lifting driving device is installed on the stand 2, and an output end of the lifting driving device is connected to the power head 20, and the lifting driving device is used to drive the power head 20 to descend or ascend on the stand 2.

Further, the lifting driving device may be configured to drive the power head 20 to lift by an oil cylinder, a conveyor chain mechanism, a hoisting mechanism, or the like.

As shown in fig. 2, the pile machine provided in this embodiment may further include a traveling device 6, where the traveling device 6 is installed at the bottom of the supporting platform 1 and is used to drive the whole pile machine to travel, so that the pile machine is moved to a construction area in a construction process and the power head 20 is located above a pile foundation designed pile position, and then the drill rod 5 can be accurately drilled into a soil body at the designed pile position in a drilling process.

The walking device 6 may be a crawler-type walking mechanism or a walking mechanism.

In this embodiment, the support table 1 may be composed of a truss structure and a platen laid flat on the truss structure. Further, the truss structure may be covered with a protective housing, where the top surface of the protective housing forms a platen.

As shown in fig. 1 and 2, a plurality of drill rods 5 horizontally placed on the support table 1 are sequentially distributed in a direction perpendicular to the central axis of the power head 20; the conveying device 4 comprises a sliding component 40, the sliding component 40 is connected with the hinged end of the lifting device 3, and the sliding component 40 is used for driving the lifting device 3 to move along the distribution direction of the plurality of drill rods 5 on the horizontal plane so as to drive the lifting device 3 to move to one side of any drill rod 5.

In this embodiment, the position of the sliding component 40 is adjusted to adjust the position of the hinged end of the lifting device 3, so that the drill rod 5 clamped by the lifting device 3 after rotating to the upright state is accurately located below the power head 20, based on this, the sliding component 40 only needs to drive the lifting device 3 to move along the distribution direction of the plurality of drill rods 5 on the horizontal plane, and at this time, the plurality of horizontally distributed drill rods 5 can be sequentially transported and erected below the power head 20 through the mutual cooperation of the moving process of the sliding component 40 and the rotating process of the lifting device 3.

In this case, the sliding assembly 40 may be a conveyor belt structure or an electric rail, or may be a structure capable of automatically traveling, such as a carriage. To simplify the construction and operation of the skid assembly 40, the present embodiment preferably employs a conveyor belt construction or motorized rails for the skid assembly 40.

Wherein, a plurality of drill rods 5 horizontally placed are sequentially distributed along a direction perpendicular to the central axis of the power head 20, so that the drill rods 5 can be orderly arranged at one side of the stand 2, thereby simplifying the moving route of the sliding assembly 40. Specifically, at this time, the sliding component 40 drives the lifting device 3 to move to one side of the standby drill rod 5 to be connected, and after the standby drill rod 5 is clamped by the clamping part 30 of the lifting device 3, the sliding component 40 drives the lifting device 3 to return to the original position, and then the lifting device 3 is rotated to accurately erect the standby drill rod 5 below the power head 20.

Further, the sliding component 40 provided in this embodiment includes a guide rail and a sliding block, the guide rail is disposed on the supporting table 1 and extends along the distribution direction of the drill rod 5, and the sliding block is slidably connected to the guide rail; the hinged end of the lifting device 3 is hinged on the slide block.

When the sliding component 40 comprises a guide rail and a sliding block, the sliding component 40 adopts an electric guide rail, and the guide rail and the sliding block can mutually cooperate to promote the route order and the accuracy of the lifting device 3, so that the accuracy of the process of connecting rods can be conveniently improved.

In this embodiment, the lifting device 3 comprises a robotic arm 31 and a lifting drive assembly; the clamping part 30 is arranged on the mechanical arm 31, one end of the mechanical arm 31 is a hinged end of the lifting device 3, and the output end of the lifting driving assembly is connected with the mechanical arm 31 and used for driving the mechanical arm 31 to rotate between the supporting table 1 and the vertical frame 2 so as to switch between a horizontal state and a vertical state.

In the use process, in order to enable the mechanical arm 31 to be accurately switched between the horizontal state and the vertical state, the rotation angle range of the mechanical arm 31 between the supporting table 1 and the vertical frame 2 can be limited to be 0-90 degrees.

The lifting driving assembly may be an oil cylinder, a jack or other telescopic driver, and the gripping part 30 may be a mechanical claw. Further, the gripping portion 30 may be an electric gripper or a pneumatic gripper.

To improve the accuracy of the clamping of the lifting device 3 to the drill rod 5 and to simplify the action of the extension rod, as shown in fig. 2, the mechanical arm 31 may be arranged perpendicular to the guide rail of the sliding assembly 40.

In addition, to promote flexibility of use of the mechanical arm 31, the length of the mechanical arm 31 may be smaller than the length of the drill rod 5, and the gripping portion 30 may be installed at a position of the mechanical arm 31 away from the hinged end to ensure gripping stability of the mechanical arm to the drill rod 5.

In order to further improve the clamping stability of the drill rod 5, the clamping portions 30 may be multiple, and the multiple clamping portions 30 are disposed on the mechanical arm 31 at intervals along the extending direction of the mechanical arm 31.

In this embodiment, the mechanical arm 31 includes a front surface and a back surface, the front surface of the mechanical arm 31 faces the support table 1 when the mechanical arm 31 is in a horizontal state, and the gripping portion 30 may be provided on the front surface of the mechanical arm 31 or on the back surface of the mechanical arm 31.

When the clamping part 30 is arranged on the front surface of the mechanical arm 31, the mechanical arm 31 needs to be higher than the drill rods 5 horizontally distributed on the supporting table 1 in a horizontal state, at this time, the mechanical arm 31 is moved to one side of the end part of the standby drill rod 5 to be connected by utilizing the sliding component 40, the mechanical arm 31 is put flat again, so that the mechanical arm 31 can be positioned above the standby drill rod 5 to be connected, then the clamping part 30 can clamp the drill rod 5 from top to bottom, and finally the mechanical arm 31 is driven to rotate by utilizing the lifting driving component so as to enable the mechanical arm 31 to be vertical, and the standby drill rod 5 to be connected can be vertically arranged below the power head 20.

When the clamping part 30 is arranged on the back of the mechanical arm 31, the mechanical arm 31 needs to be lower than the drill rods 5 horizontally distributed on the supporting table 1 in a horizontal state, at this time, when the standby drill rods 5 to be connected are conveyed, the mechanical arm 31 needs to be moved to a position corresponding to the interval between two adjacent drill rods 5 by utilizing the sliding component 40, then the mechanical arm 31 is put flat so that the mechanical arm 31 is positioned on one side of the standby drill rods 5 to be connected, the mechanical arm 31 is moved to the lower side of the standby drill rods 5 to be connected by utilizing the sliding component 40, then the clamping part 30 can clamp the drill rods 5 from bottom to top, and finally the mechanical arm 31 is driven to rotate by utilizing the lifting driving component so as to enable the mechanical arm 31 to be erected, so that the standby drill rods 5 to be connected can be erected below the power head 20.

It can be seen that, compared with the manner of clamping the drill rod 5 from top to bottom, the manner of clamping the drill rod 5 from bottom to top results in a relatively complex moving path of the sliding assembly 40, so that the embodiment preferably adopts the manner of clamping the drill rod 5 from top to bottom, and the clamping portion 30 needs to be disposed on the front surface of the mechanical arm 31.

When the clamping part 30 is arranged on the front surface of the mechanical arm 31, the clamping part 30 clamps the drill rod 5, and after the mechanical arm 31 is erected, the drill rod 5 is also positioned on the front surface of the mechanical arm 31, and at this time, in order to enable the drill rod 5 on one side of the mechanical arm 31 to be accurately positioned below the power head 20 and coaxial with the power head 20, the position of the sliding component 40 can be adjusted or a driving mechanism is additionally arranged.

As shown in fig. 9, the sliding component 40 may be disposed between the stand 2 and the drill rods 5, but at this time, an additional driving mechanism is required to be added in the conveying device 4, specifically, the additional driving mechanism is a rotating component 41, and the rotating component 41 is mounted between the sliding component 40 and the hinged end of the lifting device 3, so as to drive the mechanical arm 31 to rotate about its own central axis as a rotation axis after the mechanical arm 31 rotates to be in a standing state, so that the gripping portion 30 on the mechanical arm 31 faces the stand 2.

In the use process, because the sliding component 40 is arranged between the vertical frame 2 and the drill rods 5, after the clamping part 30 clamps the drill rods 5 and the mechanical arm 31 is erected, the drill rods 5 positioned on the front side of the mechanical arm 31 are away from the vertical frame 2 and cannot reach the lower side of the power head 20, at this time, the rotating component 41 can be started, and the rotating component 41 is utilized to drive the mechanical arm 31 to rotate 180 degrees with the central shaft of the mechanical arm 31, so that the drill rods 5 clamped by the clamping part 30 on the mechanical arm 31 can be transferred to the vertical frame 2. At this time, by adjusting the position of the hinge end in advance, the mechanical arm 31 rotates 180 degrees around its own central axis, and the drill rod 5 clamped by the clamping portion 30 can accurately reach below the power head 20 and be coaxial with the power head 20.

The rotating assembly 41 may be a turntable structure with a motor.

When the above driving mechanism is not additionally provided, the position of the sliding component 40 needs to be adjusted, specifically, as shown in fig. 15, the front side of the supporting table 1 is provided with the extension bracket 10, and the sliding component 40 is disposed on the extension bracket 10 and located at a side of the stand 2 facing away from the drill rods 5.

The extension bracket 10 is used to provide a mounting location for the slip assembly 40 on the front side of the support table 1 such that the slip assembly 40 is located on the side of the stand 2 facing away from the plurality of drill rods 5. In order to prevent the extension bracket 10 from obstructing the drill rod 5 from running down, a yielding hole for the power head 20 and the drill rod 5 to pass through is required to be arranged between the extension bracket 10 and the front side of the supporting table 1, and further, the extension bracket 10 can adopt a frame structure with an opening at one side, and the opening side of the extension bracket 10 is connected with the front side of the supporting table 1.

In the use process, because the hinged end of the lifting device 3 is hinged on the sliding component 40, when the mechanical arm 31 carries the drill rods 5 to erect, the mechanical arm 31 can erect on one side of the stand 2 opposite to the plurality of drill rods 5 after passing through the stand 2, and at the moment, the position of the hinged end is adjusted in advance, so that the drill rods 5 on the front of the mechanical arm 31 after erecting directly and accurately reach the lower part of the power head 20 and are coaxial with the power head 20.

In the process of rotating the mechanical arm 31 to stand, in order to prevent the stand 2 from obstructing the mechanical arm 31, as shown in fig. 2, the preferred stand 2 of this embodiment includes a first upright, a second upright, and a cross beam, where the first upright and the second upright are disposed in parallel, the cross beam is connected between the top end of the first upright and the top end of the second upright, and the power head 20 is connected between the first upright and the second upright in a vertically sliding manner.

In the use, the space between first stand, second stand and the crossbeam not only can give way for the process of power head 20 lift, and can give way for the process of arm 31 rotation through riser 2 after power head 20 rises.

In order to simplify the movements of the conveying device 4 and the lifting device 3, the drill rods 5 may be sequentially and horizontally distributed on the supporting table 1 along a direction parallel to the plane where the first upright and the second upright are located, and each drill rod 5 is perpendicular to the plane where the first upright and the second upright are located.

Further, the number of the drill rods 5 may be even, at this time, the drill rods 5 are divided into two groups with equal numbers, the two groups of drill rods 5 are symmetrically distributed with the central axis of the supporting table 1 as a symmetry axis, and the first upright post and the second upright post are symmetrically distributed with the central axis of the supporting table 1 as a symmetry axis.

When the two groups of drill rods 5 are symmetrically distributed and the first upright posts and the second upright posts are also symmetrically distributed, not only can the distribution of the drill rods 5 on the supporting table 1 be more orderly and uniform, but also the balance of the pile machine can be further effectively improved.

As shown in fig. 2, the pile machine provided in this embodiment further includes a movable weight device 7, where the movable weight device 7 is mounted on the rear side of the supporting table 1, and the movable weight device 7 is configured to move in a direction approaching or separating from the front side of the supporting table 1 when the weight of the stand 2 and the position of the supporting table 1 where the plurality of drill pipes 5 are placed changes, so as to adjust the gravity center position of the pile machine.

The movable counterweight device 7 can adjust the gravity center position of the pile machine according to the weight change on the pile machine in the process of connecting rod and tripping, thereby further improving the balance of the pile machine.

Further, the pile machine provided in this embodiment may further include a weight detecting device and a control device, the movable weight device 7 including a moving portion for moving in a direction approaching or separating from the front side of the support table 1; the movable counterweight device 7 and the weight detection device are both connected with a control device, the weight detection device is used for detecting weight changes at the position of the vertical frame 2 and the position of the supporting table 1 where the plurality of drill rods 5 are placed, the control device is used for calculating the moving amount of the moving part according to the weight changes detected by the weight detection device, and then the moving part is driven to move along the direction approaching to or separating from the front side of the supporting table 1 according to the moving amount, so that the gravity center position adjustment of the pile machine is realized.

The movable counterweight device 7 can adopt telescopic devices such as an oil cylinder and an air cylinder, the weight detection device can adopt a plurality of weight sensors, the control device can adopt a programmable logic controller or a computer, and the control device can control the telescopic amount of the movable counterweight device 7 according to the detection result of the weight detection device at the moment, so that the movable counterweight device 7 automatically stretches or shortens to adjust the moment at the tail side of the supporting table 1, the gravity center position of the pile machine can be changed, and the balance of the pile machine is maintained.

In this embodiment, the conveying device 4, the lifting device 3 and the traveling device 6 may be connected with the control device, and at this time, the control device may control the working processes of the conveying device 4, the lifting device 3 and the traveling device 6, so as to implement automatic connection of the pile machine and implement automatic traveling of the pile machine on the premise that the pile machine does not provide a cab.

As shown in fig. 2 and 16, the pile machine provided in this embodiment further includes a bracket assembly 8, where the bracket assembly 8 includes a plurality of brackets 80, the plurality of brackets 80 are disposed between the stand 2 and the tail side of the supporting table 1 along the axial direction of the drill rod 5 at intervals, and each bracket 80 is provided with a clamping portion, and the clamping portions on the plurality of brackets 80 are located on the same straight line to support the same drill rod 5.

In order to enable the bracket assembly 8 to simultaneously support a plurality of drill rods 5, a plurality of clamping portions may be provided on each bracket 80, and the clamping portions on the brackets 80 may be divided into a first clamping portion, a second clamping portion, a third clamping portion, and the like.

Taking two clamping portions as an example, two clamping portions are a first clamping portion and a second clamping portion, at this time, the first clamping portions on the plurality of brackets 80 need to be distributed on the same straight line for supporting the same drill rod 5, and the second clamping portions on the plurality of brackets 80 need to be distributed on the same straight line for supporting the same drill rod 5, and correspondingly, the bracket assembly 8 can simultaneously support two drill rods 5.

In this embodiment, the first clamping portion and the second clamping portion may be clamping grooves, or may be support plates. Specifically, when the bracket 80 has a block structure, the first clamping portion and the second clamping portion are both clamping grooves; when the bracket 80 is a support structure formed by rod members, the first clamping portion and the second clamping portion are both support plates.

In order to make the bracket assembly 8 applicable to the mechanical arms 31 with different specifications, the bracket 80 may be of a telescopic structure, and the bracket 80 may drive the clamping portion to lift in the telescopic process.

The bracket 80 may be sequentially sleeved with a plurality of sleeves to realize telescoping, or may be sleeved with a scissor mechanism to realize telescoping.

In summary, in the pile driver provided in this embodiment, the drill rods 5 are horizontally placed on the supporting table 1, and then the conveying device 4 drives the lifting device 3 to sequentially move horizontally on the supporting table 1 and sequentially rotate by the lifting device 3, so that the plurality of drill rods 5 can be sequentially sent to the lower portion of the power head 20 in a simple route, and the subsequent connection rod and the drill-down process of the drill rods 5 are facilitated. Therefore, the pile driver can complete the process of connecting and drilling the drill rods 5 through simple actions, and can ensure the balance of the pile driver in the whole process of connecting and drilling the drill rods 5 horizontally placed in the process of connecting and drilling, so that a large number of the drill rods 5 can be continuously connected under the premise of ensuring the stability of the pile driver, and the construction requirement of an ultra-long pile can be met. Moreover, since the plurality of drill rods 5 are sequentially connected after being lowered to the above ground and the power head 20 is only required to be connected with one drill rod 5 in one connection process, the height of the portal does not need to be too high, and on the basis of the fact, the pile driver provided by the embodiment can automatically, highly and safely perform connection operation to realize construction of cast-in-place piles with various lengths in spaces (including short spaces such as tunnels) with different heights by horizontally placing and orderly combining the drill rods 5 on the premise of using the short portal.

It can be seen that the pile driver provided by this embodiment not only breaks through the traditional design concept that the height of the neutral column and the length of the drilling tool of the current main stream heavy pile driver must meet the designed pile length, but also solves the problem that the center of gravity of the pile driver is often deviated by a plurality of drill rods 5 erected side by side in the combined drilling tool, resulting in overweight front end of the pile driver.

It should be noted that, the center of gravity offset caused by the plurality of drill rods 5 erected side by side in the existing pile machine equipped with the combined drilling tool is usually infinitely increased by the weight, so that the phenomenon that the pile machine weight is always increased by 150 tons to more than 300 tons is caused, the construction cost is increased, and the pile machine can be constructed only by paving steel plates on a large area on a site to ensure the safety of the pile, so that the construction cost is further increased. The pile driver provided by the embodiment can not only enable the drilling depth to be not limited by the total length of the drilling tool any more through the continuous connection rod process, but also ensure the balance of the pile driver through the horizontally-placed drilling rod 5, and the counterweight is not required to be greatly increased. Only one counterweight is saved, the weight of the pile machine provided by the embodiment can be reduced by 30-40% compared with the existing pile machine, and the manufacturing cost of the pile machine is effectively reduced. In addition, the pile driver provided by the embodiment can drive the drill rod 5 to rotate through the power head 20 in the lifting process, so that the drill rod 5 can extrude soil in the drilling process, pile holes are dug out in a rotary mode, and the purposes of soil sampling-free construction, energy conservation and emission reduction are achieved.

It should be further noted that, although drilling equipment capable of realizing a connecting rod is disclosed in the prior art, such as a long spiral full-automatic pile driver disclosed in CN202688997U, a combined power hole-forming pile machine disclosed in CN208950504U, and an offshore platform automatic workover rig base device disclosed in CN 209556966U.

However, CN202688997U only discloses a column mechanism which can rotate around the axis to switch between drilling and cage-setting states, and does not disclose how the drilling tool is improved and how the spare drill rod 5 is connected with the original drill rod 5. Compared with CN202688997U, the pile machine provided in this embodiment proposes a specific technical scheme of reducing the height and the center of gravity of the stand 2 and increasing the construction pile length.

CN208950504U discloses a scheme of arranging two sets of power heads 20 and drilling tool systems along the vertical column, but the weight of the top end of the vertical column is increased by adding the power heads 20 and the drilling tool systems, so that the reverse safety accident is more easily generated, the power heads 20 are usually the most expensive components of the pile machine, and the manufacturing cost of the pile machine is obviously increased by two sets of power heads 20. Compared with CN208950504U, the pile driver provided in this embodiment does not need to consider the unstable center of gravity caused by erecting the drill pipes 5, and can increase the number or length of the drill pipes 5 to increase the pile driving depth, so that the pile driver provided in this embodiment can achieve more times of pile driving depth without increasing the height of the pile driver and enhancing the stability of the pile driver.

CN209556966U discloses a scheme of conveying an oil pipe onto a mechanical arm 31 through a pipe feeding mechanism, and lifting the oil pipe into a well through the mechanical arm 31, but in the process of conveying the oil pipe, other auxiliary equipment is required to realize continuous supply of the oil pipe, the oil pipe belongs to a light component, and a drilling tool with a length of 6-8 meters on a pile machine weighs about 4-6 tons, if the disclosed conveying mode for enabling the oil pipe to enter the mechanical arm 31 and the well in a free falling manner is used for realizing conveying the drilling tool, the mechanical structure and the drilling tool of the pile machine are damaged, and the disclosed conveying mode of the oil pipe also needs auxiliary machinery such as a crane and manual cooperation, so that the cost is greatly increased. Compared with CN209556966U, the pile driver provided by the embodiment can move the drill rod 5 clamped by the lifting device 3 to the lower part of the power head 20 through the mutual cooperation of the conveying device 4 and the lifting device 3, and is connected with the drill rod 5 through the power head 20 to drive the drill rod 5 to drill down into the soil, the situation that the drill rod 5 falls freely cannot occur in the whole process, and the pile driver provided by the embodiment can automatically and orderly realize the sequential connection rod and the drilling process of a plurality of the drill rods 5 through the pre-programming on the control system of the pile driver without conveying the drill rod 5 by manpower or other equipment.

In addition, although a device capable of adjusting the counterweight is disclosed in the prior art, such as the counterweight device disclosed in CN110939132a, the counterweight device guarantees the perpendicularity of the machine by adding or reducing the counterweight, but the process of adding or reducing the counterweight is complex, which is time-consuming and labor-consuming, requires other auxiliary machinery to carry the counterweight, and greatly affects the consistency of piling construction when the counterweight is applied to a pile machine. Compared with CN110939132A, the pile machine provided by the embodiment can realize automatic and rapid adjustment of the moment of the pile machine so as to adjust the gravity center position of the pile machine by mutually matching the movable counterweight device 7 with the weight detection device and the control device, and the pile machine meets the construction continuity requirement of the pile machine better.

For the piling machinery disclosed in CN216381270U, CN105756060A, CN107023267B in the background art, the stand 2 on the piling machinery adopts the traditional single-column structure, so that the corresponding process of grabbing and moving the drill rod 5 needs to bypass the single column, based on the single-column structure, the piling machinery adopts the working mode of erecting the drill rod 5, but even if the pile machine erects the drill rod 5, the conveying and the butt joint of the drill rod 5 are facilitated, the pile foundation instability problem is also caused correspondingly. The pile driver provided by the embodiment adopts the mode of horizontally placing the drill rod 5, combines and perfects the whole structure, can realize the process of stably grabbing and moving the drill rod 5 when adopting the low vertical frame 2, is safer and more stable compared with pile machinery for vertically placing the drill rod 5, and can also increase the contact area between the drill rod 5 and the supporting table 1 through the operation mode of horizontally placing the drill rod 5, thereby changing the point load during vertical placement into the surface load with smaller pressure intensity after vertical placement, effectively protecting the pile driver structure and reducing the strength requirement of the pile driver.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (10)

1. The pile machine is characterized by comprising a supporting table (1), a vertical frame (2), a lifting device (3) and a conveying device (4);

the supporting table (1) comprises a front side and a tail side, the stand (2) is fixed on the front side of the supporting table (1), the stand (2) is connected with a power head (20) in a sliding manner, and the power head (20) can be lifted on the stand (2);

a plurality of horizontally placed drill rods (5) are supported at positions between the tail side of the supporting table (1) and the vertical frame (2), the lifting device (3) comprises a hinged end and a clamping part (30), the conveying device (4) comprises an output end, the conveying device (4) is arranged on the supporting table (1), the hinged end of the lifting device (3) is hinged to the output end of the conveying device (4), and the conveying device (4) is used for driving the lifting device (3) to move on the supporting table (1) so as to drive the lifting device (3) to move between one side of any drill rod (5) and a position below the power head (20);

The clamping part (30) of the lifting device (3) is used for clamping any drill rod (5) when the lifting device (3) moves to one side of the drill rod (5), and the lifting device (3) is used for rotating between the supporting table (1) and the vertical frame (2) by taking the hinged end of the lifting device as a rotation center so as to switch the drill rod (5) clamped by the clamping part (30) from a horizontal state to a vertical state.

2. Pile machine according to claim 1, characterized in that a plurality of horizontally placed drill rods (5) on the support table (1) are distributed in sequence in a direction perpendicular to the central axis of the power head (20);

the conveying device (4) comprises a sliding component (40), the sliding component (40) is connected with the hinged end of the lifting device (3), and the sliding component (40) is used for driving the lifting device (3) to move along the distribution direction of a plurality of drill rods (5) on a horizontal plane so as to drive the lifting device (3) to move to one side of any drill rod (5).

3. Pile machine according to claim 2, characterized in that the sliding assembly (40) comprises a guide rail and a slide block, the guide rail being provided on the support table (1) and extending in the direction of distribution of the drill rods (5), the slide block being slidingly connected to the guide rail;

The hinged end of the lifting device (3) is hinged to the sliding block.

4. Pile machine according to claim 2, characterised in that the lifting device (3) comprises a mechanical arm (31) and a lifting drive assembly;

the clamping part (30) is arranged on the mechanical arm (31), one end of the mechanical arm (31) is the hinged end of the lifting device (3), and the output end of the lifting driving assembly is connected with the mechanical arm (31) and used for driving the mechanical arm (31) to rotate between the supporting table (1) and the vertical frame (2) so as to switch between a horizontal state and a vertical state.

5. Pile machine according to claim 4, characterized in that the mechanical arm (31) comprises a front face and a rear face, the front face of the mechanical arm (31) facing the support table (1) when the mechanical arm (31) is in a horizontal state, the gripping portion (30) being provided on the front face of the mechanical arm (31).

6. A piling machine according to claim 5, wherein the slip assembly (40) is provided between the stand (2) and a plurality of the drill rods (5), and the conveying means (4) further comprises a rotating assembly (41);

the rotating assembly (41) is arranged between the sliding assembly (40) and the hinged end of the lifting device (3), and the rotating assembly (41) is used for driving the mechanical arm (31) to rotate by taking the central shaft of the mechanical arm (31) as a rotating shaft after the mechanical arm (31) rotates to be in an upright state, so that the clamping part (30) on the mechanical arm (31) faces the vertical frame (2).

7. Pile machine according to claim 5, characterized in that the front side of the supporting table (1) is provided with an extension bracket (10), the sliding assembly (40) being arranged on the extension bracket (10) and on the side of the stand (2) facing away from the drill rods (5).

8. Pile machine according to any one of claims 1-7, characterized in that it further comprises a mobile counterweight device (7), which mobile counterweight device (7) is mounted on the rear side of the support table (1), which mobile counterweight device (7) is adapted to be moved in a direction towards or away from the front side of the support table (1) for adjusting the position of the centre of gravity of the pile machine when a weight change occurs at the stand (2) and at the position of the support table (1) where a plurality of drill rods (5) are placed.

9. A piling machine according to any one of claims 1-7, further comprising a bracket assembly (8), the bracket assembly (8) comprising a plurality of brackets (80), a plurality of brackets (80) being arranged between the stand (2) and the trailing side of the support table (1) at intervals along the axial direction of the drill rod (5), and each bracket (80) being provided with a detent, the detents on the plurality of brackets (80) being co-linear to support the same drill rod (5).

10. Pile machine according to claim 9, characterised in that the carriage (80) is of telescopic construction and in that the carriage (80) can drive the clamping part to rise and fall during the telescopic process.