CN220301420U - Pile pressing and digging machine for rotary pipe - Google Patents

Abstract

The utility model relates to construction equipment, in particular to a coil pipe pile pressing and digging machine, which comprises a frame and a frame arranged on the frame, wherein the frame is provided with a plurality of coil pipes which are connected in sequence along the digging direction and a coil pipe driving mechanism which is arranged on the frame and is used for driving the coil pipes to rotate; the inner sleeve of the coil pipe is provided with a drilling disc device, and the drilling disc device comprises a drilling disc body, a locking mechanism which is arranged on the drilling disc body and is used for locking with the coil pipe, and a hole supporting mechanism which is arranged on the drilling disc body. The coil pipe pile pressing and driving machine overcomes the pain points existing in the existing pore-forming construction method of all large-caliber cast-in-place piles, and has the advantages of low energy consumption, small pollution, high safety and fast progress in the construction process. The barrier-free construction of the large-caliber cast-in-place pile under the land full-geological condition is realized, and the reinforced pile can be more used for rapid rescue of mining accidents, water construction and the like.

Description

Pile pressing and digging machine for rotary pipe

Technical Field

The utility model relates to the technical field of construction equipment, in particular to a rotary pipe pile pressing and digging machine.

Background

The prior hole forming construction method for the large-caliber (with the diameter of 1M or more) cast-in-place pile comprises the following steps: manual hole digging, hole forming by a punching pile machine, hole forming by a rotary pile digging machine, and hole forming by a sinking pipe rotary pile digging machine. They all have their own advantages and disadvantages, and they are described below in a tabular manner together with the coil-driving pile machine according to the present utility model:

as can be seen from the table, the existing large-caliber cast-in-place pile pore-forming construction method has the pain points which are difficult to overcome:

1. manual hole digging: when meeting toxic gas, sand, high water level, silt and the like, people can easily get out, and when meeting karst cave and underground river, special treatment is required to be stopped.

2. Hole forming by a punching pile machine: poor pore-forming quality, large concrete loss, large environmental pollution, incapability of expanding pores, and shutdown project treatment when a hammer is dropped and a river is under ground.

3. Hole forming of rotary pile digger: the pore-forming quality is general, a certain concrete loss exists, pores cannot be developed, and when inclined rocks, hard rocks, larger karst cave and underground river are encountered, shutdown project treatment is needed.

4. Pile driver is dug soon to immersed tube: the hole cannot be opened, and the special treatment is needed when the hole is in contact with inclined rock, hard rock, larger karst cave and underground river.

Disclosure of Invention

The utility model aims to provide construction equipment for forming holes of large-caliber cast-in-place piles, which is mainly used for large-caliber cast-in-place pile construction under the condition of land full geology and can be used for mining disaster rescue, water construction and the like.

The aim of the utility model is achieved by the following technical scheme: the utility model provides a coil pipe pile pressing and digging machine, which comprises a frame and a frame arranged on the frame, wherein the frame is provided with a plurality of coil pipes which are connected in sequence along the digging direction and a coil pipe driving mechanism which is arranged on the frame and is used for driving the coil pipes to rotate; the inner sleeve of the coil pipe is provided with a drilling disc device, and the drilling disc device comprises a drilling disc body, a locking mechanism which is arranged on the drilling disc body and is used for locking with the coil pipe, and a hole supporting mechanism which is arranged on the drilling disc body.

The locking mechanism comprises a telescopic dowel bar, a short column lock bolt is fixedly connected to the top end of the dowel bar, an external thread is arranged on the outer side face of the bottom end of the dowel bar, a spiral rotor is sleeved at the bottom end of the dowel bar, an internal thread matched with the external thread is arranged in the spiral rotor, a first steel rope groove is formed in the outer side face of the spiral rotor, a first steel rope and a second steel rope are arranged in the first steel rope groove, the end part of the first steel rope is fixed in the first steel rope groove, the first steel rope is wound in the first steel rope groove, the end part of the second steel rope is fixed in the first steel rope groove, and the second steel rope is wound in the first steel rope groove.

The hole supporting mechanism comprises a spiral roller, a second steel rope groove is formed in the outer periphery of the spiral roller, a third steel rope and a fourth steel rope are arranged in the second steel rope groove, the end part of the third steel rope is fixed in the second steel rope groove, the third steel rope is wound in the second steel rope groove, the end part of the fourth steel rope is fixed in the second steel rope groove, and the fourth steel rope is wound in the second steel rope groove; the helical drum is rotatably mounted within the drill plate body.

The hole supporting mechanism further comprises two push rods, the two push rods are respectively and telescopically arranged at two ends of the spiral roller, internal threads are arranged in the spiral roller, external threads matched with the internal threads are formed on the outer side face of the end part, close to the spiral roller, of the push rod, and a cutter is fixedly arranged at one end, far away from the spiral roller, of the push rod.

The plurality of coils comprise a first coil positioned at the initial end, a third coil positioned at the tail end and a second coil positioned between the first coil and the third coil.

The second coil is connected with the first coil in a clamping mode, the first coil is provided with a first pipe connecting groove towards the end portion of the second coil, one end of the second coil towards the first pipe connecting groove protrudes outwards to form a first pipe joint, and the first pipe joint and the first pipe connecting groove are arranged in a dovetail shape.

The first pipe joint is inserted into the first pipe joint groove, a clamping gap is reserved between one side of the first pipe joint and the groove wall of the first pipe joint groove, a panel is arranged in the clamping gap, spring bolts capable of moving in a telescopic mode are installed at two ends of the panel, facing the first pipe joint groove and the first pipe joint, of the first pipe joint, and clamping holes for inserting the spring bolts are formed in the end face, facing the spring bolts, of the first pipe joint and the groove bottom, facing the spring bolts, of the first pipe joint.

The third coil is connected with the second coil, a second pipe connecting groove is formed in the end portion, facing the third coil, of the second coil, a pin plate hole aligned with the second pipe connecting groove is formed in the third coil, and an electric pin plate mechanism is fixedly arranged on the third coil and comprises a pin plate body penetrating through the pin plate hole and inserted into the second pipe connecting groove; the electric pin plate mechanism further comprises an electric push rod fixedly mounted on the third coil, telescopic rods capable of performing telescopic motion are arranged at two ends of the electric push rod, wedge blocks are fixedly connected to the ends of the telescopic rods, the pin plate body protrudes towards the side faces of the wedge blocks to form mounting lugs, wedge holes are formed in the mounting lugs, first inclined planes are formed in the wedge holes, and second inclined planes opposite to the first inclined planes in inclination directions are formed at the ends of the wedge blocks towards the wedge holes.

The third coil is also provided with a pin plate reset mechanism for driving the pin plate body to move inwards, the pin plate reset mechanism comprises a supporting frame fixedly arranged on the third coil, the pin plate body extends out of the guide post towards the inside of the supporting frame, the periphery side of the guide post is sleeved with a reset spring, one end of the reset spring is fixedly connected with the guide post, and the other end of the reset spring is fixedly connected with the supporting frame.

The coil driving mechanism comprises arc-shaped sliding plates, driving tooth shafts and driving coils which are fixedly arranged at two sides of the inside of the frame, the front ends of the driving coils extend out of a mounting part fixedly connected with the third coils, a plurality of engaging teeth which are axially arranged in the jacking pipe direction and are spirally arranged at intervals are arranged on the outer peripheral side surface of the driving coils, sliding grooves which are axially spirally arranged in the jacking pipe direction are respectively arranged on the inner side surface of each arc-shaped sliding plate, the engaging teeth are inserted into the sliding grooves, the driving tooth shafts are axially fixedly arranged on the frame in the jacking pipe direction, and the driving tooth shafts are meshed with the engaging teeth; the coil driving mechanism also comprises a driving source for driving the driving gear shaft to rotate.

The utility model has the beneficial effects that: compared with the prior art, the coil pipe pile pressing and driving machine overcomes the pain points existing in the existing hole forming construction method of all large-caliber cast-in-place piles, and has the advantages of low energy consumption, small pollution, high safety and fast progress in the construction process. The barrier-free construction of the large-caliber cast-in-place pile under the land full-geological condition is realized, and the reinforced pile can be more used for rapid rescue of mining accidents, water construction and the like.

Drawings

The utility model will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the utility model, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.

Fig. 1 is a schematic structural diagram of a rotary pipe pile pressing machine according to the present embodiment.

Fig. 2 is a schematic structural view of a rotary pipe according to the present embodiment.

Fig. 3 is an enlarged view at a in fig. 2.

Fig. 4 is an exploded view of the coil in this embodiment.

Fig. 5 is a schematic structural diagram of the drill plate device in this embodiment.

Fig. 6 is a sectional view of the lock mechanism in the present embodiment.

Fig. 7 is an enlarged view at C in fig. 6.

Fig. 8 is a cross-sectional view of the bracket mechanism in this embodiment.

Fig. 9 is an enlarged view at B in fig. 2.

Fig. 10 is a schematic view of the electric pin plate mechanism in the present embodiment.

Fig. 11 is a sectional view of the second coil and the third coil in the present embodiment.

Fig. 12 is a schematic structural view of a rotary pipe driving machine in the present embodiment.

Fig. 13 is a cross-sectional view at A-A in fig. 13.

Fig. 14 is a sectional view of the drive coil in this embodiment.

Fig. 15 is a schematic diagram of the driving coil structure in this embodiment.

Fig. 16 is a cross-sectional view at B-B in fig. 13.

Fig. 17 is a schematic structural diagram of a frame in the present embodiment.

Fig. 18 is a schematic view of the structure of the hook in this embodiment.

Description of the drawings: frame 11, frame 12, coil drive mechanism 13, coil 14, mud pit 15, soil chute 16, first coil 2, first tube socket 21, positioning block 22, bayonet hole 23, mounting hole 24, second coil 3, first tube socket 31, positioning slot 32, second tube socket 33, drill plate assembly 4, drill plate assembly 41, cutter block 411, hob mechanism 412, soil outlet 413, lock mechanism 42, dowel bar 421, stud lock 422, first steel cable 423, second steel cable 424, helical rotor 425, first cable groove 426, push rod 431, cutter 432, third steel cable 433, fourth steel cable 434, helical roller 435, second cable groove 436, third coil 5, pin plate hole 51, arcuate slide 61, driving gear 62, driving coil 63, mounting portion 64, snap teeth 65, slide groove 66, pin plate assembly 7, electric push rod 71, telescoping rod 72, wedge 73, mounting ear 74, wedge hole 75, first ramp 76, second ramp 77, 78, guide leg 70, reset spring support bracket 82, telescoping leg 82, telescoping support bracket 88, telescoping spring support bracket 88, telescoping collar mechanism 82, second ramp mechanism 82, telescoping collar support bracket 88, telescoping collar mechanism 82, telescoping collar support frame 88, and hanger bracket 81.

Detailed Description

The utility model will be further described with reference to the following examples.

In the concrete embodiment of the coil pile pressing and digging machine of the present utility model, please refer to fig. 1, the coil pile pressing and digging machine includes a frame 11, a frame 12 mounted on the frame 11, the frame 12 is provided with a plurality of coils 14 connected in sequence along the digging direction, and a coil driving mechanism 13 mounted on the frame 12 and used for driving the coils 6314 to rotate. Besides the rotary pipe pile digger, a mud pit 15, an inclined soil frame 16 and a hoisting mechanism are also arranged.

Referring to fig. 2 and 3, the coil 14 includes a first coil 2 at the start, a third coil 5 at the end, and a second coil 3 between the first coil 2 and the second coil 3. The second coil 3 is clamped with the first coil 2 and the second coil 3 is clamped with the second coil 3, the first coil 2 and the second coil 3 are clamped for illustration, the first coil 2 is provided with a first pipe connecting groove 21 towards the end part of the second coil 3, the second coil 3 protrudes outwards towards one end of the first pipe connecting groove 21 to form a first pipe joint 31, and the first pipe joint 31 and the first pipe connecting groove 21 are all in a dovetail shape. The dovetail shape design can limit the fore-and-aft and side-to-side degrees of freedom between the two coils. In addition, in order to limit the degree of freedom between the coils up and down, the first pipe joint 31 is inserted into the first pipe joint groove 21, a clamping gap is left between one side of the first pipe joint 31 and the groove wall of the first pipe joint groove 21, a panel 9 is arranged in the clamping gap, the panel 9 is provided with a spring bolt 91 which can move in a telescopic manner towards both ends of the first pipe joint groove 21 and the first pipe joint 31, and the end face of the first pipe joint 31 towards the spring bolt 91 and the groove bottom of the first pipe joint groove 21 towards the spring bolt 91 are provided with a clamping hole for inserting the spring bolt 91. It should be noted that, the first coil 2 and the second coil 3, and the second coil 3 may be engaged with each other by the above-described mounting method using the panel 9. When in use, the first pipe joint 31 of the coil is inserted into the first pipe joint groove 21 of the other coil, then accurate alignment is realized, one side of the first pipe joint 31 is tightly pressed with the second pipe joint groove 33, a clamping gap is formed at the moment, then the spring bolts 91 at two ends of the panel 9 are pressed, the panel 9 is inserted into the clamping gap, and after the panel 9 moves to a proper position, the spring bolts 91 are ejected and inserted into the clamping pin holes, so that clamping is realized. It should be noted that the height and number of the first pipe joint 31 and the first pipe joint groove 21 are determined by calculation, and for example, the height and number of the joint projections and depressions may be increased when the resistance torque is increased, and even the pipe wall thickness may have to be increased. The joint is smoothly and firmly connected, so that the main power transmission, perfect pile hole wall protection, smooth penetration of karst cave and underground river and perfect construction space are realized. For further accurate positioning, the first pipe joint 31 forms a positioning block 22, the bottom of the first pipe joint groove 21 forms a positioning groove 32, and the two coils are further accurately positioned by utilizing the cooperation of the positioning block 22 and the positioning groove 32.

As an improvement, referring to fig. 4, the coil 14 is sleeved with the drilling disc device 4, specifically, the drilling disc device 4 is directly placed into the coil 14, and the drilling disc device 4 can move up and down along the axial direction of the coil 14 under the condition that the drilling disc device 4 is not locked, specifically, a rope can be used for continuously suspending the drilling disc device 4. The drill plate device 4 includes a drill plate body 41, a locking mechanism 42 provided on the drill plate body 41 for locking with a coil, and a hole supporting mechanism provided on the drill plate body 41.

Referring to fig. 5, the drill plate body 41 is made of high-strength steel, and a connecting portion for hanging an external hanging device is extended upwards from the middle of the drill plate body 41, and the connecting portion is mainly hung by an external hanging mechanism, so that the drill plate device 4 is moved to an appropriate position. The drill plate body 41 is further provided with a plurality of soil outlet holes 413 which are distributed along the radial direction of the drill plate at intervals, the arrangement of the soil outlet holes 413 mainly transfers the muck produced by excavation to the inside of the rotary pipe, not only can the muck be prevented from obstructing the excavation progress, but also the muck is backfilled to the inside of the rotary pipe, the structure of the rotary pipe can be increased, and the crushing of the rotary pipe caused by the bulge or collapse of the bottom surface is avoided. In addition, the openings of the plurality of soil outlets 413 are gradually increased from inside to outside along the radial direction of the drill plate, so that the slag with different particle sizes can be fed in, and the transfer of the slag is facilitated. The drill plate body 41 further comprises a plurality of cutter blocks 411 fixedly mounted on the working surface of the drill plate body 41, the cutter blocks 411 are distributed at intervals along the radial direction of the drill plate body 41, in addition, the drill plate body 41 is provided with a plurality of hob holes distributed at intervals along the radial direction of the drill plate body 41, and hob mechanisms 412 are rotatably mounted in the hob holes. It should be noted that the number of rows and the number of rows of the cutter blocks 411 and the hob mechanisms 412 are calculated and set up according to calculation, and the cutter blocks and the hob mechanisms can be driven by the coil.

Referring to fig. 5, fig. 5 is a schematic structural diagram of the locking mechanism 42 in a locked state, that is, the drilling disc device 4 is locked in the first coil 2, the drilling disc device 4 is fixedly connected with the first coil 2, the first coil 2 rotates, and the drilling disc device rotates along with the first coil 2. Specifically, referring to fig. 6 and 7, the locking mechanism 42 includes a telescopic dowel bar 421, a short column lock pin 422 is fixedly connected to a top end of the dowel bar 421, and, referring to fig. 2, a clamping hole 23 into which the short column lock pin 422 is inserted is formed in a peripheral side surface of the first coil 2. The bottom periphery side of dowel bar 421 is equipped with the external screw thread, the bottom cover of dowel bar 421 is equipped with helical rotor 425, be equipped with in the helical rotor 425 with external screw thread complex internal screw thread, first cable groove 426 has been seted up to helical rotor 425's periphery side, be equipped with first steel cable 423 and second steel cable 424 in the first cable groove 426, the tip of first steel cable 423 is fixed in first cable groove 426, and first steel cable 423 winds and establishes in first cable groove 426, the tip of second steel cable 424 is fixed in first cable groove 426, and second steel cable 424 winds and establish in first cable groove 426.

It should be noted that the first steel cable 423 and the second steel cable 424 are substantially equivalent to the switching function, and control the extension and retraction actions of the dowel 421, respectively. When the drilling machine works, the first steel inhaul cable 423 is pulled upwards, the second steel inhaul cable 424 is rolled downwards when the first steel inhaul cable 423 is pulled upwards, so that the spiral rotor 425 rotates forwards, the dowel bar 421 stretches outwards under the matching action of the external threads and the internal threads, the short column lock plunger 422 is inserted into the clamping hole 23 of the first coil pipe 2, the drilling disc device is fixed relative to the first coil pipe 2, and the installation work of the drilling disc device 4 is completed. When the drilling disc device 4 needs to be disassembled, the second steel inhaul cable 424 moves upwards, and meanwhile, the first steel inhaul cable 423 rolls downwards when the second steel inhaul cable 424 moves upwards, so that the spiral rotor 425 reverses, under the matching action of the external threads and the internal threads, the dowel bar 421 retracts inwards, the short column lock plunger 422 is separated from the clamping hole 23 of the first coil 2, the drilling disc device is separated from the fixing of the first coil 2, and the disassembling work of the drilling disc device 4 is completed. The drilling disc device 4 achieves the aims of barrier-free and noise-free tunneling, underground hole expansion, drilling disc unlocking and automatic engagement of the soil outlet basket.

Referring to fig. 5 and 8, the hole supporting mechanism includes a spiral drum 435, a second wire rope groove 436 is provided at an outer circumferential side of the spiral drum 435, a third wire rope 433 and a fourth wire rope 434 are provided in the second wire rope groove 436, an end portion of the third wire rope 433 is fixed in the second wire rope groove 436, the third wire rope 433 is wound in the second wire rope groove 436, an end portion of the fourth wire rope 434 is fixed in the second wire rope groove 436, and the fourth wire rope 434 is wound in the second wire rope groove 436. The helical drum is rotatably mounted within the drill plate body 41. The hole supporting mechanism further comprises two push rods 431, the drill plate body is provided with a mounting hole 24 for the push rods 431 to penetrate, the two push rods 431 are respectively and telescopically mounted at two end parts of the spiral roller 435, internal threads are arranged in the spiral roller 435, external threads matched with the internal threads are arranged on the outer side surfaces of the end parts, close to the spiral roller 435, of the push rods 431, and a cutter 432 is fixedly mounted at one end, far away from the spiral roller 435, of the push rods 431.

It should be noted that the third steel cable 433 and the fourth steel cable 434 are substantially equivalent to the switching function, and control the extension and retraction actions of the push rod 431, respectively. When the drill plate is in operation, the third steel inhaul cable 433 is pulled upwards, and the fourth steel inhaul cable 434 is rolled downwards while the third steel inhaul cable 433 is pulled upwards, so that the spiral roller 435 rotates forwards, the push rod 431 extends outwards under the matching action of the external threads and the internal threads, the cutter 432 extends out of the outer side surface of the drill plate body, the radius of the drill plate device is increased, and the hole expanding preparation work is completed. When reaming is not needed, the fourth steel inhaul cable 434 moves upwards, and when the fourth steel inhaul cable 434 moves upwards, the third steel inhaul cable 433 rolls downwards, so that the spiral roller 435 is reversed, under the cooperation of the external threads and the internal threads, the push rod 431 retracts inwards, and the cutter 432 is recovered into the drill plate body, so that reaming is relieved.

Referring to fig. 9, the third coil 5 is connected to the second coil 3, the end of the second coil 3 facing the third coil 5 is provided with a second pipe connecting slot 33, the third coil 5 is provided with a pin plate hole 51 aligned with the second pipe connecting slot 33, and the third coil 5 is fixedly provided with an electric pin plate mechanism. Referring to fig. 10 and 11, the electric pin plate mechanism includes a pin plate body 7 inserted through a pin plate hole 51 and into the second pipe joint groove 33. The electric pin plate mechanism further comprises an electric push rod 71431 fixedly mounted on the third coil 5, telescopic rods 72 capable of performing telescopic motion are arranged at two ends of the electric push rod 71431, wedge blocks 73 are fixedly connected to the ends of the telescopic rods 72, the pin plate body 7 protrudes towards the side faces of the wedge blocks 73 to form mounting lugs 74, wedge holes 75 are formed in the mounting lugs 74, first inclined planes 76 are arranged in the wedge holes 75, and second inclined planes 77 opposite to the first inclined planes 76 in inclination directions are arranged at the ends of the wedge blocks 73 towards the wedge holes 75. The third coil 5 is further provided with a pin plate reset mechanism for driving the pin plate body 7 to move inwards, the pin plate reset mechanism comprises a supporting frame 78 fixedly arranged on the third coil 5, the pin plate body 7 extends out of the guide column 79 towards the inside of the supporting frame, a reset spring 70 is sleeved on the outer periphery side of the guide column 79, one end of the reset spring 70 is fixedly connected with the guide column 79, and the other end of the reset spring 70 is fixedly connected with the supporting frame. When the electric pin plate mechanism works, the two telescopic rods 72 of the electric push rod 71431 extend outwards, so that the wedge blocks 73 are inserted into the wedge holes 75, the telescopic rods 72 lift the pin plate body 7 under the guidance of the first inclined surfaces 76 and the second inclined surfaces 77, and at the moment, the reset springs 70 are in a compressed state; the second pipe connecting groove 33 of the second coil pipe 3 is aligned with the pin plate hole 51 of the third coil pipe 5, the two telescopic rods 72 of the electric push rod 71431 are retracted, and the compressed reset spring 70 drives the pin plate body 7 to be inserted into the second pipe connecting groove 33 and the pin plate hole 51 by utilizing the self elastic force of the compressed reset spring, so that the automatic butt joint of the second coil pipe 3 and the third coil pipe 5 is realized.

The first coil 2, the second coil 3 and the third coil 5 of the present embodiment are combined to form a coil system, which functions as a perfect hole protection wall. Smooth connection of the coil enables penetration of karst cave and underground river to be realized: the steel pipe or the plastic pipe can directly pass through the coil pipe in a guiding way, the space in the coil pipe forms a perfect construction space, meanwhile, the slag soil can fill the space in the coil pipe, and the situation of ground bulge or collapse is avoided.

In the present embodiment, referring to fig. 12 and 13, the coil driving mechanism 13 includes arc-shaped sliding plates 61, driving gear shafts 62 and driving coils 63 fixedly installed at both sides of the inside of the frame 12.

In the drawings, the front end of the driving coil 63 extends to form a mounting portion 64 fixedly connected to the third coil 5, and a plurality of engagement teeth 65 are provided on the outer peripheral side surface of the driving coil 63, the engagement teeth being axially aligned in the jacking direction and being arranged at intervals in a spiral shape.

Referring to fig. 14 to 16, the inner side surface of each arc-shaped slide plate 61 is provided with a slide groove 66 spirally arranged in the axial direction of the pipe jacking direction. The engaging teeth 65 are inserted into the slide grooves 66, the driving gear shaft 62 is axially and fixedly mounted on the frame 12 in the pipe jacking direction, and the driving gear shaft 62 is meshed with the engaging teeth 65. In operation, the driving gear shaft 62 rotates, and the engagement teeth 65 of the driving coil 63 are engaged with the driving gear shaft 62, so that the driving coil 63 rotates, and the driving coil 63 can move along the digging direction and simultaneously rotate under the spiral guidance of the engagement teeth 65 and the sliding grooves 66, so that not only can proper rotary digging force be provided for the drill plate, but also forward pushing pressure can be provided for the drill plate.

It should be noted that the coil driving mechanism 13 further includes a driving source for driving the driving gear shaft to rotate. In this embodiment, the driving source is a driving motor, and the driving motor is in transmission connection with the driving gear shaft 62 through a speed change mechanism, and the speed change mechanism directly adopts the existing equipment according to the calculation requirement: realize that the resistance is automatically slowed down when big and automatically fast when little. The driving coil 63 receives the variable-speed power of the driving gear shaft 62, and cooperates with the spiral guide rail between the engagement teeth 65 and the sliding groove 66 to realize forced push-pull, the push-pull speed of the driving coil 63 is only related to the rotation speed, and meanwhile, due to the amplification effect of the spiral member, strong push-pull force is generated to realize the purposes of core power conversion, forced control of progress and counter force transmission. The coil driving system converts source power into rotary cutting and pressure of the coil system, so that forced advance and retreat are realized.

Referring to fig. 17, the frame 11 of the present embodiment includes telescopic support legs 81 and power wheels 82. The telescopic support legs 81 can provide enough supporting force and limiting capacity during operation, and the power wheels 82 facilitate the movement of the rotary pipe pile pressing and digging machine. The frame 11 system achieves the aims of quick field shifting, quick displacement in the field, pile driver support, counter force transmission and accessory facility placement.

In combination with fig. 18, the hoisting mechanism in this embodiment has a special lifting hook besides the conventional crawler crane selected according to the configuration requirement as the foundation, so as to realize the control of the drilling plate, and fast hoist the soil outlet basket, the coil pipe and the slurry pump, and is mainly used for hoisting the reinforcement cage, the displacement in the pile airport and the like. The special lifting hook is required to rapidly complete the technical actions of rotating alignment and automatic rope grabbing and releasing under specific conditions, and the structure mainly comprises a lifting ring 83, a lifting rod 84 fixedly connected with the lifting ring 83, a rotating support 86 rotatably arranged at the bottom of the lifting rod 84, a rotating motor 85 for driving the rotating support 86 to continuously rotate around the electric pole is arranged on the side face of the electric pole, a first clamping ring 88 and a second clamping ring 89 are hinged to the bottom end of the rotating support 86, and a telescopic mechanism 87 for driving the first clamping ring 88 and the second clamping ring 89 to move in opposite directions is further arranged on the rotating support 86. The hoisting mechanism of the embodiment can realize the underground control of the drilling disc, the utility model aims of quick soil discharge, mud pumping and coil hoisting, and is responsible for pile machine displacement, reinforcement cage hoisting and the like.

The working process of the coil pipe pile pressing and digging machine of the embodiment is as follows: firstly, sleeving a third coil 5 into a coil driving device; secondly, sleeving a drilling disc device 4 on the first coil 2; third, the third; the hole expanding mechanism is driven to retract, and the locking mechanism 42 is controlled to extend, so that the drilling disc device is locked on the first coil 2; fourthly, starting a coil driving mechanism 13, and enabling the third coil 5 to move downwards to be sleeved with the first coil 2, and automatically connecting the third coil with the first coil by utilizing an electric pin plate mechanism; fifthly, stopping the machine when the first coil 2 drills down to a proper position, automatically opening an electric pin plate mechanism of the third coil 5 and the first coil 2, lifting the third coil 5, hanging in the second coil 3 and connecting with the first coil 2, and hanging in and out a soil basket to be embedded on the drilling disc body 41; sixthly, the third coil 5 moves downwards to be sleeved with the second coil 3 for automatic connection and normal tripping; seventh, the soil discharging basket is lifted out until the soil discharging frame is dumped on the soil conveying vehicle to be conveyed away, the soil discharging basket is lifted back into the well to reload soil, and the reciprocating circulation is completed without stopping the soil discharging; eighth, when the lower drill is put down to the upper lifting hole of the second coil 3 and is attached to the ground, stopping the machine, automatically opening the connection between the third coil 5 and the second coil 3, lifting the third coil 5, lifting in a new second coil 3 and connecting with the original second coil 3, lifting in and lifting out a soil basket to be embedded on the drilling disc body 41; ninth, the third coil 5 is moved downward to be sleeved with a new second coil 3 to be automatically connected and drilled down normally. Tenth, the above steps are repeated until the designed depth is reached.

In the embodiment, the hole is developed by reversing the main power, lifting the drilling plate to the top of the hole, hanging the corresponding hanging rope loosening end of the hole-developing component to a specific hanging point by a special lifting hook according to the width requirement of the hole, then pulling the corresponding hanging rope tightening end of the hole-developing component by a special lifting hook with a certain pulling force (such as 1 ton), starting the main power to forward rotate and downwards press, slowly pulling the hanging rope tightening end upwards, slowly cutting the tool bit of the hole-developing component into the rock wall, hanging the hanging rope tightening end to the specific hanging point, and pulling the hanging rope loosening end just to be pulled, continuing to drill to the designed depth, lifting the drilling plate to the middle of the hole again and embedding the soil outlet basket, downwards drilling to the designed depth again to furthest remove residual soil.

Compared with the prior art, the coil pipe pile pressing and driving machine overcomes the pain points existing in the existing hole forming construction method of all large-caliber cast-in-place piles, and has the advantages of low energy consumption, small pollution, high safety and fast progress in the construction process. The barrier-free construction of the large-caliber cast-in-place pile under the land full-geological condition is realized, and the reinforced pile can be more used for rapid rescue of mining accidents, water construction and the like.

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 scope of the present utility model, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions can be made to the technical solution of the present utility model without departing from the spirit and scope of the technical solution of the present utility model.

Claims (10)

1. Pile machine is dug to coil pressure, its characterized in that: the device comprises a frame and a frame arranged on the frame, wherein the frame is provided with a plurality of coils connected in sequence along the digging direction and a coil driving mechanism which is arranged on the frame and is used for driving the coils to rotate;

the inner sleeve of the coil is provided with a drilling disc device, and the drilling disc device comprises a drilling disc body, a locking mechanism which is arranged on the drilling disc body and used for locking the coil, and a hole supporting mechanism which is arranged on the drilling disc body.

2. The rotary-tube pile pressing machine according to claim 1, wherein: the locking mechanism comprises a telescopic dowel bar, a short column lock plunger is fixedly connected to the top end of the dowel bar, an external thread is arranged on the outer circumferential side face of the bottom end of the dowel bar, a spiral rotor is sleeved on the bottom end of the dowel bar, an internal thread matched with the external thread is arranged in the spiral rotor, a first steel cable groove is formed in the outer circumferential side face of the spiral rotor, a first steel cable and a second steel cable are arranged in the first steel cable groove, the end portion of the first steel cable is fixed in the first steel cable groove, the first steel cable is wound in the first steel cable groove, the end portion of the second steel cable is fixed in the first steel cable groove, and the second steel cable is wound in the first steel cable groove.

3. The rotary-tube pile pressing machine according to claim 1, wherein: the hole supporting mechanism comprises a spiral roller, a second steel rope groove is formed in the outer periphery of the spiral roller, a third steel rope and a fourth steel rope are arranged in the second steel rope groove, the end part of the third steel rope is fixed in the second steel rope groove, the third steel rope is wound in the second steel rope groove, the end part of the fourth steel rope is fixed in the second steel rope groove, and the fourth steel rope is wound in the second steel rope groove; the helical drum is rotatably mounted within the drill plate body.

4. A coil pressing pile machine according to claim 3, wherein: the hole supporting mechanism further comprises two push rods, the two push rods are respectively installed at two end parts of the spiral roller in a telescopic mode, internal threads are arranged in the spiral roller, external threads matched with the internal threads are formed on the outer side faces, close to the end parts of the spiral roller, of the push rods, and a cutter is fixedly installed at one end, far away from the spiral roller, of the push rods.

5. The rotary-tube pile pressing machine according to claim 1, wherein: the plurality of coils includes a first coil at a start end, a third coil at an end, and a second coil between the first coil and the third coil.

6. The rotary-tube pile pressing machine according to claim 5, wherein: the second coil is connected with the first coil in a clamping mode, a first pipe connecting groove is formed in the direction of the first coil towards the end portion of the second coil, a first pipe joint is formed in the direction of the second coil towards one end of the first pipe connecting groove in an outward protruding mode, and the first pipe joint and the first pipe connecting groove are all in a dovetail shape.

7. The rotary-tube pile pressing machine according to claim 6, wherein: the first pipe joint is inserted into the first pipe joint groove, a clamping gap is reserved between one side of the first pipe joint and the groove wall of the first pipe joint groove, a panel is arranged in the clamping gap, spring bolts capable of moving in a telescopic mode are installed at two ends of the panel, which face the first pipe joint, of the first pipe joint, the end face of the first pipe joint, which faces the spring bolts, and the groove bottom of the first pipe joint, which faces the spring bolts, are provided with clamping holes for the insertion of the spring bolts.

8. The rotary-tube pile pressing machine according to claim 5, wherein: the third coil is connected with the second coil, a second pipe connecting groove is formed in the end portion, facing the third coil, of the second coil, a pin plate hole aligned with the second pipe connecting groove is formed in the third coil, an electric pin plate mechanism is fixedly arranged on the third coil, and the electric pin plate mechanism comprises a pin plate body penetrating through the pin plate hole and inserted into the second pipe connecting groove; the electric pin plate mechanism further comprises an electric push rod fixedly mounted on the third coil, telescopic rods capable of performing telescopic motion are arranged at two ends of the electric push rod, wedge blocks are fixedly connected to the ends of the telescopic rods, the pin plate body faces the side faces of the wedge blocks to protrude out to form mounting lugs, wedge holes are formed in the mounting lugs, first inclined planes are arranged in the wedge holes, and second inclined planes opposite to the inclined directions of the first inclined planes are arranged at the ends of the wedge blocks.

9. The rotary-tube pile pressing machine according to claim 8, wherein: the third coil is also provided with a pin plate reset mechanism for driving the pin plate body to move inwards, the pin plate reset mechanism comprises a support frame fixedly arranged on the third coil, the pin plate body extends out of the support frame towards the inside of the support frame, a reset spring is sleeved on the periphery side of the guide column, one end of the reset spring is fixedly connected with the guide column, and the other end of the reset spring is fixedly connected with the support frame.

10. The rotary-tube pile pressing machine according to claim 9, wherein: the coil driving mechanism comprises arc-shaped sliding plates, driving tooth shafts and driving coils, wherein the arc-shaped sliding plates, the driving tooth shafts and the driving coils are fixedly arranged on two sides of the inside of the frame, the front ends of the driving coils extend out of an installation part fixedly connected with the third coils, a plurality of engaging teeth which are axially arranged in the jacking pipe direction and are spirally arranged at intervals are arranged on the outer peripheral side surface of the driving coils, sliding grooves which are axially spirally arranged in the jacking pipe direction are respectively arranged on the inner side surface of each arc-shaped sliding plate, the engaging teeth are inserted into the sliding grooves, the driving tooth shafts are axially fixedly arranged on the frame in the jacking pipe direction, and the driving tooth shafts are meshed with the engaging teeth; the coil driving mechanism further comprises a driving source for driving the driving gear shaft to rotate.