CN215907753U - Large-scale spiral drilling machine - Google Patents

Abstract

The utility model provides a large-scale auger drill, comprising: the device comprises a support rod, a sleeve, two helical blades, a support frame, a hydraulic cylinder, a power part, a pressurizing device and two masts, wherein the two masts are hinged with the support frame, and a gap is formed between the two masts; one end of the hydraulic cylinder is fixed on the support frame, and the other end of the hydraulic cylinder is hinged to one side of the mast; the pressurizing device is arranged at one side of the mast in a sliding way, and the power part is fixed on the pressurizing device; the support rod is fixed on a rotating shaft of the power part, the sleeve is sleeved on the outer wall of the support rod in a sliding way, the two spiral blades are fixed on the outer wall of the support rod, and the spiral blades extend to the bottom end of the support rod; the spiral drilling machine is provided with the pressurizing device, so that the spiral drilling head can be driven to upwards pressurize and run without increasing the weight of the mast, and the idle running of the drilling head is avoided; and telescopic setting can adjust the drilling depth of drill bit, has avoided the condition that drill bit drilling depth differs, has improved work efficiency greatly.

Description

Large-scale spiral drilling machine

Technical Field

The utility model relates to the technical field of spiral drilling machines, in particular to a large spiral drilling machine.

Background

The spiral drilling machine comprises a hydraulic walking pile frame and a drilling system. The pile frame adopts a hydraulic walking type chassis, has high automation degree, can automatically walk and rotate for 360 degrees, is provided with four hydraulic support legs and a walking oil cylinder to assist the walking and the rotation and simultaneously increase the stability of the whole machine during construction, and can be transported by the whole machine. The stand is folded cascade box stand, flange joint mode, and the stand adopts two high thickness masks and uses large-scale bender bending technique, forms through twice welding seam welding and the stand is inside every 60cm adds to weld four strengthening ribs and fixes, increases stand antitorque bending resistance. The vertical column is controlled by two amplitude-variable hydraulic cylinders to lift. The drilling system comprises a power head and a drilling tool, an output shaft of the power head and the spiral drilling tool are hollow, the pile machine adopts a long spiral hole forming mode, concrete { or slurry ] can be pumped through a central pipe of a drill rod to construct a concrete CFG pile, the hole forming can be finished once by one machine, and the drilling system can also be used for dry hole forming, grouting replacement and drilling tool changing and then construction by various construction methods such as deep stirring and the like.

However, in the process of using the overshoot drill, because the large-scale spiral drilling machine has large self weight, the drill bit is rotated downwards by the self weight for drilling of the drill bit, and when the drill bit meets a hard bottom layer structure, the drill bit is easy to idle, so that the working efficiency is reduced; and because large-scale auger control fineness is little, often need artifical real-time supervision actual drilling depth, not only waste time and energy, but also lead to the piling degree of depth to differ easily, not only cause the waste of cost, still influence the engineering acceptance in later stage, consequently it is necessary to develop a large-scale auger that can control the piling degree of depth and can pressurize the drill bit.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the utility model provides a large-scale spiral drilling machine to solve the technical problems that in the prior art, the drilling depth of a large-scale spiral drilling machine is controlled complicatedly, and a spiral drill bit idles due to insufficient self gravity.

The technical scheme adopted by the utility model for solving the technical problems is as follows: a large auger drill, comprising:

the support frame is fixed at the upper end of the spiral drilling machine equipment body, the two masts are hinged with the support frame, the two masts are arranged in opposite directions, and a gap is formed between the two masts;

one end of the hydraulic cylinder is fixed on the support frame, and the other end of the hydraulic cylinder is hinged to one side of the mast; the pressurizing device is arranged on one side of the mast in a sliding mode, and the power part is fixed on the pressurizing device;

the bracing piece is fixed the axis of rotation of power portion, sleeve slidable cover is established the bracing piece outer wall, two helical blade fixes the bracing piece outer wall, just helical blade extends to the bracing piece bottom, wherein

The pressurizing device can drive the power part to move up and down along the two masts.

Preferably, the pressurizing means includes: the second fixing plate is arranged between the two masts, the driving motor is fixed on the inner side wall of the second fixing plate and arranged between the two masts, the two rotating gears are respectively and rotatably connected to the two ends of the driving motor;

linear racks matched with the rotating gears are respectively arranged on the inner walls of the two masts, and one rotating gear is opposite to one linear rack;

the two second limiting blocks are arranged oppositely, the second limiting blocks are vertically fixed on the outer side wall of the second fixing plate, a plurality of sliding wheels are rotatably arranged on the outer side wall of each second limiting block, and each sliding wheel is attached to the outer wall of the mast; wherein

The driving motor can drive the second fixing plate to move up and down along the linear rack.

Preferably, two ends of the mast are fixed with a reinforcing block in a mirror image mode, and the two reinforcing blocks are vertically fixed on the inner walls of the two opposite sides of the mast;

the width of the second fixing plate is larger than the distance between the two opposite reinforcing blocks, and the width of the second fixing plate is smaller than the distance between the two linear racks.

Preferably, the pressurizing device further comprises a fixed platform, the fixed platform is fixed on the outer side wall of the second limiting block, and the power part is fixed on the fixed platform; wherein

When the two masts are vertical, the driving motor can drive the power part to move up and down.

Preferably, the power unit includes: the drilling rod fixing device comprises a spiral motor, a speed reducer and a drilling rod fixing device, wherein the speed reducer is fixed at the upper end of a fixing platform, a power output shaft of the speed reducer penetrates through the fixing platform, the spiral motor is fixed at the upper end of the speed reducer, and the power output shaft of the spiral motor is rotationally connected with the speed reducer; the drill rod fixer is arranged on the lower side of the fixing platform and is rotatably fixed on a power output shaft of the speed reducer, wherein

The screw motor can drive the drill rod fixer to rotate.

Preferably, the support rod is cylindrical, the two helical blades are spirally fixed at the lower end of the outer wall of the support rod, and the diameters of the helical blades are gradually increased from the lower end to the upper end of the support rod;

the sleeve is slidably sleeved on the outer wall of the supporting rod, a locking structure is arranged at the upper end of the sleeve, the sleeve is hollow, the helical blade is arranged in the sleeve, and the sleeve is linked with the supporting rod; wherein

Sliding the sleeve can increase or decrease the drilling depth of the helical blade.

Preferably, the sleeve is in a hollow cylindrical shape, an arc cylinder is fixed at the lower end of the sleeve, the arc cylinder is hollow, and the helical blades protrude out of the end wall of the arc cylinder; the inner diameter of the arc cylinder is larger than the outer diameter of the horizontal projection of the helical blade.

A linkage assembly is arranged in the sleeve, one end of the linkage assembly is hinged to the inner wall of the sleeve, and the other end of the linkage assembly abuts against the outer wall of the supporting rod; wherein

Pushing the linkage assembly can extend or retract the helical blade into the sleeve.

Preferably, the linkage assembly includes: the two ends of the first fixing plate are fixed on the inner wall of the sleeve, and the first fixing plate is sleeved on the outer wall of the supporting rod in a sliding manner;

the positioning block is sleeved on the outer wall of the supporting rod;

the two movable plates are hinged to two sides of the first fixed plate respectively and are arranged oppositely;

two ends of the connecting rod are respectively hinged to the movable plate and the positioning block, and the two connecting rods are respectively arranged on two sides of the supporting rod; wherein

The movable plate is pushed downwards to push the sleeve to move towards the lower end of the supporting rod so as to contract the spiral rod.

Preferably, a first limiting block is arranged on the outer wall of the supporting rod, the cross section of the first limiting block protrudes out of the outer wall of the supporting rod in a cross shape, and the first limiting block is arranged in the sleeve;

a limiting groove matched with the first limiting block is formed in the first fixing plate; wherein

After the first limiting block is inserted into the limiting groove, the supporting rod can drive the sleeve to synchronously rotate.

Preferably, a positioning cylinder is fixed at the upper end of the sleeve, a positioning hole is formed in the side wall of the positioning cylinder, the locking structure penetrates through the positioning hole to be in threaded connection with the positioning cylinder, the end part of the locking structure abuts against the outer wall of the supporting rod, the positioning cylinder is conical, and the upper end of the positioning cylinder is slidably sleeved on the outer wall of the supporting rod; wherein

The locking structure is rotated to fix the sleeve on the outer wall of the supporting rod.

The utility model has the beneficial effect of providing a large-scale spiral drilling machine, which comprises: the device comprises a support rod, a sleeve, two helical blades, a support frame, a hydraulic cylinder, a power part, a pressurizing device and two masts, wherein the two masts are hinged with the support frame, and a gap is formed between the two masts; one end of the hydraulic cylinder is fixed on the support frame, and the other end of the hydraulic cylinder is hinged to one side of the mast; the pressurizing device is arranged at one side of the mast in a sliding way, and the power part is fixed on the pressurizing device; the support rod is fixed on a rotating shaft of the power part, the sleeve is sleeved on the outer wall of the support rod in a sliding way, the two spiral blades are fixed on the outer wall of the support rod, and the spiral blades extend to the bottom end of the support rod; the spiral drilling machine is provided with the pressurizing device, so that the spiral drilling head can be driven to upwards pressurize and run without increasing the weight of the mast, and the idle running of the drilling head is avoided; and telescopic setting can adjust the drilling depth of drill bit, has avoided the condition that drill bit drilling depth differs, has improved work efficiency greatly.

Drawings

The utility model is further illustrated with reference to the following figures and examples.

FIG. 1 is a schematic structural view of a large auger drilling machine of the present invention;

FIG. 2 is a schematic view of the installation of the pressurizing means and power section of the present invention;

FIG. 3 is a perspective view of the compression device of the present invention;

FIG. 4 is a cross-sectional view of a compression device of the present invention;

FIG. 5 is a perspective view of the auger bit of the present invention;

FIG. 6 is a schematic structural view of the linkage assembly of the present invention;

fig. 7 is a schematic view of the structure within the sleeve of the present invention.

In the drawings

1. A support bar; 11. tapping hard blocks;

2. a sleeve; 20. a locking structure; 21. a circular arc cylinder; 22. a linkage assembly; 221. a first fixing plate; 222. positioning blocks; 223. a connecting rod; 224. a movable plate; 225. a first stopper; 23. a positioning cylinder; 231. positioning holes;

3. a helical blade;

4. a support frame; 41. a hydraulic cylinder;

5. a power section; 51. a screw motor; 52. a speed reducer; 53. a drill rod holder;

6. a pressurizing device; 61. a second fixing plate; 62. a drive motor; 63. a rotating gear; 64. a second limiting block; 65. a sliding wheel; 66. a fixed platform;

7. a mast; 71. a reinforcing block; 72. a linear rack; 73. a fixed pulley; 74. a steel cord; 75. a pulley block.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention. On the contrary, the embodiments of the utility model include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be considered as limiting the present invention.

Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.

As shown in fig. 1 to 7, the present invention provides a large-sized auger drill including: the device comprises a support rod 1, a sleeve 2, two helical blades 3, a support frame 4, a hydraulic cylinder 41, a power part 5, a pressurizing device 6 and two masts 7, wherein the support frame 4 is suitable for supporting the hydraulic cylinder 41; hydraulic cylinder 41 is adapted to drive mast 7 in rotation to maintain said mast 7 in a vertical orientation; the power section 5 can continuously increase the pressure applied to the power head; the pressurizing device 6 is suitable for bearing the power part 5 and the power head to slide along the two masts 7; the masts 7 are adapted to support the pressurizing means 6 as well as the power section 5. With respect to the above components, detailed description is given below.

Mast

The masts 7 are arranged above the auger drilling equipment body, are provided with two identical masts 7, are arranged oppositely, have a gap between the two masts 7, and can be erected and keep fixed in the vertical direction. After the two masts 7 are fixed, the power head of the auger drill can slide along the masts 7.

The construction of the mast 7 is described in detail below, the mast 7 comprising: a reinforcing block 71, a linear rack 72 disposed inside the reinforcing block 71. Two ends of the mast 7 are fixed with a reinforcing block 71 in a mirror image manner, the two reinforcing blocks 71 are vertically fixed on the inner walls of the two opposite sides of the mast 7, specifically, the reinforcing blocks 71 are U-shaped, the opening directions of the two reinforcing blocks 71 are oppositely arranged, a certain gap is formed between the straight lines of the two reinforcing blocks 71, the two reinforcing blocks 71 are fixed, the two sides are closed, the two sides are opened, and the two reinforcing blocks 71 can respectively reinforce the strength of the mast 7 corresponding to the outer walls of the reinforcing blocks 71 to prevent the mast 7 from being twisted and deformed. The linear racks 72 are disposed on the inner side of the mast 7, and specifically, the two linear racks 72 are disposed on the inner walls of the opening surfaces on the same side of the reinforcing block 71, respectively, and the linear racks 72 are disposed along the length direction of the reinforcing block 71.

Supporting frame

The support frame 4 is fixed at the upper end of the spiral drilling machine body, the support frame 4 is arranged on one side, far away from the linear rack 72, of the mast 7, and the support frame 4 is hinged with the two masts 7.

Hydraulic cylinder

One end of a hydraulic cylinder 41 is fixed on the support frame 4, and the other end of the hydraulic cylinder 41 is hinged on one side of the mast 7. The support frame 4 is suitable for supporting the hydraulic cylinder 41 and is fixed on the side wall of the mast 7, when the hydraulic cylinder 41 works, the hydraulic cylinder 41 can drive the mast 7 to rotate around the hinged position of the support frame 4 and the mast 7, so that the included angle between the mast 7 and the opposite surface is changed, and finally the mast is kept in the vertical direction.

It should be noted that, in general, the power head of the auger drill is arranged at one side of the mast 7, and the rising and falling of the power head are controlled through the fixed pulley 73, the rotation power of the drill rod of the power head arranged in this way is provided by the power head during the drilling process, the downward drilling force of the power head and the drill rod is provided by the dead weight of the power head and the drill rod, the maximum drilling force is limited, when a complex stratum is encountered, because the drilling force is not enough to overcome the resistance, the idle rotation of the power head is caused and the downward drilling is not continued, and the working efficiency is influenced. In order to solve the above problem, the pressurized power head device for an auger machine according to the present embodiment further includes a pressurizing device 6 and a power unit 5.

Pressure device

The pressurizing device 6 is arranged on one side of the mast 7 in a sliding mode, the lower end of the pressurizing device 6 is suitable for being connected with the power head, and the pressurizing device 6 can bear the power head to slide along the side wall of the mast 7.

The following describes the structure of the pressurizing device 6, and the pressurizing device 6 includes: a fixed plate 61, a driving motor 62 and two rotation gears 63. The fixing plate 61 is disposed between the two masts 7, specifically, two ends of one side of the fixing plate 61 are respectively attached to an inner wall of one side of the reinforcing plate 71 disposed opposite to each other, the fixing plate 61 is disposed between the two linear racks 72, a width of the fixing plate 61 is greater than a distance between the two reinforcing blocks 71, and a width of the fixing plate 61 is smaller than a distance between the two linear racks 72, and the fixing plate 61 is adapted to support the driving motor 62 and the two rotating gears 63. The driving motor 62 is disposed on one side of the fixing plate 61 facing the inside of the reinforcing plate 71, the driving motor 62 is disposed between the two masts 7, and the side wall of the driving motor 62 is fixedly connected with the fixing plate 61. Two output shafts extend out of two ends of the driving motor 62 respectively, and the two rotating gears 63 are rotatably fixed on the output shafts at two ends of the driving motor 62 respectively. Linear racks 72 matched with the rotating gears 63 are respectively arranged on the inner walls of the two masts 7, the two rotating wheels 63 can be respectively meshed with the linear racks 72 after the two rotating wheels 63 are installed, and when the driving motor 62 rotates and further drives the two rotating wheels 63 to synchronously rotate through the output shaft, the two rotating wheels 63 can be meshed with the linear racks 72, so that the fixing plate 61 is driven to slide along the length direction of the linear racks 72.

In order to reduce the friction loss between the fixing plate 61 and the reinforcing plate 71 when sliding along the length direction of the linear rack 72, the pressing device 6 further includes: the two limiting blocks 64 and the plurality of sliding wheels 65 are oppositely arranged, the limiting blocks 64 are vertically fixed on the outer side wall of the fixing plate 61, the plurality of sliding wheels 65 are rotatably arranged on the outer side wall of each limiting block 64, and each sliding wheel 65 is attached to the outer wall of the mast 7. When the driving motor 62 drives the fixing plate 61 to slide along the length direction of the linear rack 72, the sliding friction between the fixing plate 61 and the inner wall of the reinforcing plate 71 can be converted into the rolling friction between the sliding wheel 65 and the outer wall of the reinforcing plate 71 by the sliding wheels 65, so that the friction loss of the fixing plate 61 is greatly reduced, and the service life of the fixing plate 61 is prolonged.

Power unit

The power part 5 is fixed on the pressurizing device 6, and the pressurizing device 6 can drive the power part 5 to move up and down along the two masts 7. The power section 5 can continuously increase the pressure applied to the power head so that the power head can obtain sufficient pressing force and break the hard formation down into the borehole.

In order to reliably fix the power part 5 on the pressing device 6, the pressing device 6 further includes a fixing platform 66, the fixing platform 66 is fixed on the outer side wall of the limiting block 64, the power part 5 is fixed on the fixing platform 66, and when the masts 7 are vertical, the driving motor 62 can drive the power part 5 to move up and down.

The following describes the configuration of the power unit 5, and the power unit 5 includes: a screw motor 51, a reducer 52 and a drill rod holder 53. The speed reducer 52 is fixed at the upper end of the fixed platform 66, the power output shaft of the speed reducer 52 is inserted into the fixed platform 66, the screw motor 51 is fixed at the upper end of the speed reducer 52, and the power output shaft of the screw motor 51 is rotatably connected with the speed reducer 52. The drill rod fixer 53 is arranged on the lower side of the fixing platform 66, the drill rod fixer 53 is rotatably fixed on a power output shaft of the speed reducer 52, and the screw motor 51 can drive the drill rod fixer 53 to rotate. Specifically, when the screw motor 51 works, torque can be output outwards through the power output shaft, and the drill rod fixer 53 can be carried after the speed is reduced and the torque is increased through the speed reducer 52, and the drill rod stabilizer 53 can drive the power head to rotate.

In order to facilitate the pulling back of the pressurizing device 6 and the power part 5, two pulley blocks 75 are relatively fixed at the upper end of the mast 7, a fixed pulley 73 is rotatably fixed between the two pulley blocks 75, a steel cable 74 is wound around the side wall of the fixed pulley 73, the two sliding blocks 75 are fixedly connected to the upper end surface of the mast 7, and the two sliding blocks 75 are respectively fixed on the outer side walls of the two masts 7. The fixed pulley 73 is fixed to the inner side of the sliding block 75, and after the fixed pulley 73 is installed, the fixed pulley 73 can rotate in the circumferential direction. One end of a cable 74 is wound around the fixed pulley 73, and the other end is fixed to the upper end of the fixed platform 66 downward along the length of the mast 7. Meanwhile, a winch (not shown) is fixedly connected to one side of the fixed pulley 73, and when the winch is started, the fixed pulley 73 is driven to wind the steel cable 74, so that the pressurizing device 6 and the power unit 5 are pulled back upwards.

The working process of the large-scale auger drill shown in this embodiment is that when the auger drill body moves to a proper position, the hydraulic cylinder 41 works to push the mast 7 to be vertical, the driving motor 62 is started after the mast 7 is vertical, the driving rotating gear 63 is sequentially meshed with the linear rack 72 to drive the sliding wheel 65 to roll along the outer wall of the mast 7, so as to drive the pressurizing device 6 and the power part 5 to slide down along the outer wall of the mast 7 to a position close to the ground, at this time, the auger motor 51 rotates, the torque output by the auger motor 51 is decelerated and increased by the reducer 52 and then outputs a torque to the drill rod fixer 53, so that the drill rod fixer 53 can drive the power head to rotate, then the driving motor 62 continues to drive the pressurizing device 6 and the power part 5 to slide down along the outer wall of the mast 7 to drill into the ground, and in the process of drilling of the power head, the driving motor 62 can continuously output pressure to the pressurizing device 6, and the power head is assisted to drill through hard stratum. When drilling of the power head is completed, a winch (not shown) is started to drive the fixed pulley 73 to wind the wire rope 74, thereby pulling the pressurizing means 6 and the power unit 5 upward.

Support rod

The support rod 1 is cylindrical, the support rod 1 is solid inside so as to ensure the strength of the support rod 1, the support rod 1 is positioned at the center of the rotary drilling bit, the support rod 1 can rotate axially during working and advances downwards along the axial direction, the main effect is to transmit torque, and meanwhile, as hard rocks are usually touched by an object drilled by the rotary drilling bit, the support rod 1 must bear huge internal and external pressure, distortion, bending and vibration, so that the support rod 1 can be used for multiple times without being easily damaged in the working process. In addition, the rotary drilling bit for the auger drilling machine shown in the embodiment is designed in a split mode, and the support rod 1 is also an installation base part of other parts.

Helical blade

The spiral blades 3 are provided with two identical pieces, the two spiral blades 3 are spirally fixed at the lower end of the outer wall of the supporting rod 1, the two spiral blades 3 are axially arranged at intervals along the supporting rod 1, and the pitch between any two spiral blades 3 is kept equal. The diameters of the two spiral blades 3 are gradually increased from the lower end to the upper end of the supporting rod 1, and when the supporting rod 1 rotates and moves downwards for drilling, the spiral blades 3 can move gradually from bottom to top layer by layer to enlarge the aperture of the drilled hole.

In order to enhance the drilling reliability of the rotary drilling bit, the lower end of the support rod 1 is provided with a hard tapping block 11, the hard tapping block 11 is triangular, two sides of the hard tapping block 11 are respectively attached to the bottom end faces of the two helical blades 3, the hard tapping block 11 is vertically fixed on the lower end wall of the support rod 1, and the concrete expression is that the sharp corner of the hard tapping block 11 faces downwards, and the bottom face of the hard tapping block is fixedly connected with the lower end face of the support rod 1. When rotating the bracing piece 1, attack the piece 11 and can take lead the ground of boring in proper order to break through hard rock stratum, when attacking the piece 11, thereby the protection bracing piece 1 with helical blade 3 directly contacts with the ground and is destroyed.

It should be pointed out that, in the working process of the rotary drilling bit for the general spiral drilling machine, the helical blade 3 of the drill bit is usually directly exposed in the air, but because in the actual engineering requirement, deep holes are not always required to be drilled, and the depth and the drilling radius of the drilled hole can be controlled only by the experience of an operator when the drill bit for the general spiral drilling machine drills, the diameter of the drilled hole is often too small, and the diameter expansion is usually divided into two methods of replacing the drill bit with a larger diameter and repeatedly drilling the hole on one side of the same hole diameter, such operation is time-consuming and labor-consuming, and the depth of the hole groove is easily different, the later-stage installation is affected, and the depth of the drilled hole is different due to different pressure degrees. In order to solve the above problem, the rotary drilling bit for the auger drilling machine in the embodiment further includes a sleeve 2.

Sleeve barrel

Sleeve 2 is hollow circular cylinder, just sleeve 2 slidable cover is established 1 outer wall of bracing piece, works as simultaneously when bracing piece 1 rotates, can drive sleeve 2 rotates in step. The sleeve 2 can slide in parallel along the outer wall of the support rod 1, so that the height of the spiral blade 3 protruding out of the sleeve 2 and the corresponding maximum diameter of the spiral blade 3 are adjusted.

The structure of the sleeve 2 is specifically described below, and the sleeve 2 specifically includes a locking structure 20, an arc cylinder 21, a linkage assembly 22 and a positioning cylinder 23. The locking structure 20 can keep the sleeve 2 and the support rod 1 relatively fixed, so that the height and the maximum diameter of the spiral blade 3 protruding out of the sleeve 2 are determined according to engineering requirements; the arc cylinder 21 can be abutted against the ground after the drilling of the helical blade 3 reaches the engineering depth, so that the helical blade 3 is prevented from being drilled downwards continuously; the linkage assembly 22 can drive the sleeve 2 to slide up and down along the outer wall of the support rod 1, so that the height of the spiral blade 3 protruding out of the sleeve 2 and the corresponding maximum diameter of the spiral blade 3 are adjusted; the positioning cylinder 23 is adapted to mount the locking structure 20.

The arc tube 21 is fixed the lower extreme of sleeve 2, the inward bending of arc tube 21 forms the arc surface, just the arc tube 21 cavity, the arc tube 21 with sleeve 2 lateral wall thickness is the same. The helical blade 3 protrudes out of the end wall of the arc cylinder 21, and the inner diameter of the arc cylinder 21 is larger than the outer diameter of the horizontal projection of the helical blade 3. When the drilling of helical blade 3 reaches the predetermined depth, arc cylinder 21 can butt ground from preventing helical blade 3 to drilling deeper.

The linkage assembly 22 is arranged inside the sleeve 2, one end of the linkage assembly 22 is hinged to the inner wall of the sleeve 2, and the other end of the linkage assembly 22 abuts against the outer wall of the support rod 1. Pushing the linkage assembly 22 can extend or retract the helical blade 3 into the sleeve 2, thereby achieving the effect of adjusting the drilling depth.

The linkage assembly 22 specifically includes: a fixed plate 221, a positioning block 222, two connecting rods 223 and two movable plates 224. The both ends of fixed plate 221 are fixed sleeve 2 inner wall, just fixed plate 221 slidable cover is established 1 outer wall of bracing piece, fixed plate 221 follows when 1 outer wall of bracing piece slides, can drive sleeve 2 synchronous slip. The positioning block 222 is sleeved on the outer wall of the support rod 1. The two movable plates 224 are hinged to two sides of the fixed plate 221, and the two movable plates 224 are disposed opposite to each other. Two ends of the connecting rod 223 are respectively hinged to the movable plate 224 and the positioning block 222, and the two connecting rods 223 are respectively disposed on two sides of the supporting rod 1. When the movable plate 224 is pushed downwards, the movable plate 224 can push the connecting rod 223 to rotate around the positioning block 222, so that the fixing plate 221 can push the sleeve 2 to move towards the lower end of the supporting rod 1 to retract the screw rod; when the movable plate 224 is pushed upwards, the movable plate 224 can pull the connecting rod 223 to rotate around the positioning block 222 in the opposite direction, so that the fixing plate 221 can push the sleeve 2 to move towards the upper end of the supporting rod 1 to extend the spiral rod. The upper end of sleeve 2 is fixed with a location section of thick bamboo 23, a locating hole 231 has been seted up to a location section of thick bamboo 23 lateral wall, locking structure 20 with locating hole 231 looks adaptation, just locking structure 20 outside has the external screw thread, locking structure 20 passes locating hole 231 with a location section of thick bamboo 23 threaded connection, just locking structure 20 tip with 1 outer wall of bracing piece offsets, a location section of thick bamboo 23 is the toper, just the upper end slidable cover of a location section of thick bamboo 23 is established the outer wall of bracing piece 1 rotates locking structure 20 can with sleeve 2 is fixed 1 outer wall of bracing piece, thereby confirms helical blade 3 protrusion the height of locking structure 20.

In order to facilitate the sleeve 2 to synchronously rotate along with the support rod 1, a limiting block 225 is arranged on the outer wall of the support rod 1, the cross section of the limiting block 225 protrudes out of the outer wall of the support rod 1 in a cross shape, and the limiting block 225 is arranged in the sleeve 2; a limiting groove matched with the limiting block 225 is formed in the fixing plate 221; after the limiting block 225 is inserted into the limiting groove, the supporting rod 1 can drive the sleeve 2 to rotate synchronously.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (10)

1. A large auger drill, comprising:

the device comprises a support rod (1), a sleeve (2), two spiral blades (3), a support frame (4), a hydraulic cylinder (41), a power part (5), a pressurizing device (6) and two masts (7), wherein the support frame (4) is fixed at the upper end of a spiral drilling machine device body, the two masts (7) are hinged with the support frame (4), the two masts (7) are arranged in opposite directions, and a gap is formed between the two masts (7);

one end of the hydraulic cylinder (41) is fixed on the support frame (4), and the other end of the hydraulic cylinder (41) is hinged to one side of the mast (7); the pressurizing device (6) is arranged on one side of the mast (7) in a sliding manner, and the power part (5) is fixed on the pressurizing device (6);

the bracing piece (1) is fixed the axis of rotation of power portion (5), sleeve (2) slidable cover is established bracing piece (1) outer wall, two helical blade (3) are fixed bracing piece (1) outer wall, just helical blade (3) extend to bracing piece (1) bottom, wherein

The pressurizing device (6) can drive the power part (5) to move up and down along the two masts (7).

2. A large spiral drilling machine according to claim 1,

the pressurization device (6) comprises: the device comprises a second fixing plate (61), a driving motor (62), two rotating gears (63), two second limiting blocks (64) and a plurality of sliding wheels (65), wherein the second fixing plate (61) is arranged between the two masts (7), the driving motor (62) is fixed on the inner side wall of the second fixing plate (61), the driving motor (62) is arranged between the two masts (7), and the two rotating gears (63) are respectively and rotatably connected to two ends of the driving motor (62);

linear racks (72) matched with the rotating gears (63) are respectively arranged on the inner walls of the two masts (7), and one rotating gear (63) corresponds to one linear rack (72);

the two second limiting blocks (64) are oppositely arranged, the second limiting blocks (64) are vertically fixed on the outer side wall of the second fixing plate (61), a plurality of sliding wheels (65) are rotatably arranged on the outer side wall of each second limiting block (64), and each sliding wheel (65) is attached to the outer wall of the mast (7); wherein

The driving motor (62) can drive the second fixing plate (61) to move up and down along the linear rack (72).

3. A large spiral drilling machine according to claim 2,

two ends of the mast (7) are fixed with a reinforcing block (71) in a mirror image mode, and the two reinforcing blocks (71) are vertically fixed on the inner walls of the opposite sides of the two masts (7);

the width of the second fixing plate (61) is larger than the distance between the two opposite reinforcing blocks (71), and the width of the second fixing plate (61) is smaller than the distance between the two linear racks (72).

4. A large spiral drilling machine according to claim 3,

the pressurizing device (6) further comprises a fixing platform (66), the fixing platform (66) is fixed on the outer side wall of the second limiting block (64), and the power part (5) is fixed on the fixing platform (66); wherein

When the two masts (7) are vertical, the driving motor (62) can drive the power part (5) to move up and down.

5. A large spiral drilling machine according to claim 4,

the power unit (5) includes: the drilling rod fixing device comprises a spiral motor (51), a speed reducer (52) and a drilling rod fixer (53), wherein the speed reducer (52) is fixed at the upper end of a fixing platform (66), a power output shaft of the speed reducer (52) penetrates through the fixing platform (66), the spiral motor (51) is fixed at the upper end of the speed reducer (52), and the power output shaft of the spiral motor (51) is rotatably connected with the speed reducer (52); the drill rod fixer (53) is arranged at the lower side of the fixing platform (66), and the drill rod fixer (53) is rotatably fixed at a power output shaft of the speed reducer (52), wherein

The screw motor (51) can drive the drill rod fixer (53) to rotate.

6. A large spiral drilling machine according to claim 5,

the supporting rod (1) is cylindrical, the two spiral blades (3) are spirally fixed at the lower end of the outer wall of the supporting rod (1), and the diameters of the spiral blades (3) are gradually increased from the lower end to the upper end of the supporting rod (1);

the sleeve (2) is sleeved on the outer wall of the support rod (1) in a sliding manner, a locking structure (20) is arranged at the upper end of the sleeve (2), the sleeve (2) is hollow, the helical blade (3) is arranged in the sleeve (2), and the sleeve (2) is linked with the support rod (1); wherein

Sliding the sleeve (2) can increase or decrease the drilling depth of the helical blade (3).

7. A large spiral drilling machine according to claim 6,

the sleeve (2) is in a hollow cylindrical shape, an arc cylinder (21) is fixed at the lower end of the sleeve (2), the arc cylinder (21) is hollow, and the helical blades (3) protrude out of the end wall of the arc cylinder (21); the inner diameter of the circular arc cylinder (21) is larger than the outer diameter of the horizontal projection of the helical blade (3),

a linkage component (22) is arranged in the sleeve (2), one end of the linkage component (22) is hinged to the inner wall of the sleeve (2), and the other end of the linkage component (22) is abutted to the outer wall of the support rod (1); wherein

Pushing the linkage assembly (22) can extend or retract the helical blade (3) into the sleeve (2).

8. A large spiral drilling machine according to claim 7,

the linkage assembly (22) includes: the support device comprises a first fixing plate (221), a positioning block (222), two connecting rods (223) and two movable plates (224), wherein two ends of the first fixing plate (221) are fixed on the inner wall of the sleeve (2), and the first fixing plate (221) is slidably sleeved on the outer wall of the support rod (1);

the positioning block (222) is sleeved on the outer wall of the supporting rod (1);

the two movable plates (224) are hinged to two sides of the first fixed plate (221) respectively, and the two movable plates (224) are arranged oppositely;

two ends of the connecting rod (223) are respectively hinged to the movable plate (224) and the positioning block (222), and the two connecting rods (223) are respectively arranged on two sides of the supporting rod (1); wherein

The downward pushing of the movable plate (224) can push the sleeve (2) to move towards the lower end of the support rod (1) to contract the screw rod.

9. A large spiral drilling machine according to claim 8,

a first limiting block (225) is arranged on the outer wall of the supporting rod (1), the cross section of the first limiting block (225) protrudes out of the outer wall of the supporting rod (1) in a cross shape, and the first limiting block (225) is arranged in the sleeve (2);

a limit groove matched with the first limit block (225) is formed in the first fixing plate (221); wherein

After the first limiting block (225) is inserted into the limiting groove, the supporting rod (1) can drive the sleeve (2) to rotate synchronously.

10. A large spiral drilling machine according to claim 9,

a positioning barrel (23) is fixed at the upper end of the sleeve (2), a positioning hole (231) is formed in the side wall of the positioning barrel (23), the locking structure (20) penetrates through the positioning hole (231) to be in threaded connection with the positioning barrel (23), the end part of the locking structure (20) is abutted against the outer wall of the support rod (1), the positioning barrel (23) is conical, and the upper end of the positioning barrel (23) is slidably sleeved on the outer wall of the support rod (1); wherein

The sleeve (2) can be fixed on the outer wall of the support rod (1) by rotating the locking structure (20).

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