CN213116147U - Portable rotary digging equipment for construction of tower foundation pile hole in mountainous and hilly land - Google Patents

Abstract

The utility model provides a portable rotary excavating equipment for construction of mountain and hilly area tower footing stake hole, its constitution includes support module, positioning adjustment module, drive module and drill bit module, positioning adjustment module's constitution includes first frame, install on first frame along the radial supporting mechanism that the equidistant tight stake pore wall of distribution of circumference is used for positioning adjustment module to and arrange the axial supporting mechanism that the front end acted on drive module promotion drill bit feed and adjustment drilling direction along vertical direction; the driving module comprises a second base, a motor arranged on the second base and used for driving the drill bit to rotate and a speed reducer fixed on a motor shaft; the drill bit module comprises a charging barrel connected with the second base and used for containing muck, a drill rod positioned in the charging barrel and fixedly connected with the output shaft of the speed reducer, and a spiral blade type drill bit fixed on the circumference of the drill rod. The utility model discloses compact structure is simple, easy dismounting, and small light in weight is convenient for hills mountain region transportation.

Description

Portable rotary digging equipment for construction of tower foundation pile hole in mountainous and hilly land

Technical Field

The utility model relates to an engineering field is dug soon in civil engineering foundation construction stake hole, more specific says, relates to a portable equipment of digging soon that is used for mountain region hilly area transmission line iron tower foundation stake hole construction operation and wind pole tower foundation stake hole construction operation.

Background

With the continuous acceleration of the foundation construction footsteps, the mechanized construction is widely applied to various fields, and the mechanized construction is greatly limited due to the reasons of complex construction environment, dispersed tower foundations, inconvenient traffic and the like. The traditional construction mode has the problems of low construction efficiency, high labor intensity and the like, and is difficult to adapt to the rapid development of the power transmission line. In recent years, national grid companies have been dedicated to the research work of whole-process mechanized construction, tower footing construction is used as an important component of a power transmission line, and the degree of mechanized construction is particularly important. The tower footing foundation construction mainly comprises the following characteristics:

1. the high-voltage transmission line passes through mountainous areas and valleys mostly, the terrain is complex, the position of a tower foundation is remote, and the high-voltage transmission line is not beneficial to the approach of large-scale mechanized equipment.

2. The distance of the power transmission line is long, the geology along the line is complex and changeable, the geological conditions of the tower footing are complex and changeable, and unpredictability exists, so that the mechanical equipment is required to have the construction capacity of a complex stratum.

3. Each tower footing foundation is generally composed of 4 piles, the distance between tower foundations is long, construction areas are extremely dispersed, mechanical equipment frequently shifts, and the advantage of efficient construction is difficult to exert.

At present, a percussion drill and a reverse circulation drill are mostly adopted for construction of the power transmission line tower footing foundation, equipment is disassembled before entering a field and then is transported to a construction site for assembly, the degree of mechanization in the construction process is low, a large amount of manpower is needed, the pile forming quality of the equipment is poor, and the construction efficiency is low.

In order to overcome the defects of a percussion drill and a reverse circulation drill, a modularized rotary drilling rig is developed in the field of engineering machinery, and has the characteristics of convenience in operation, strong adaptability, safety, reliability, saving and high efficiency. The rotary drilling rig mainly comprises a walking device, a luffing mechanism, a cab, a rotary platform, a power system, a hoisting mechanism, a balance weight, a hydraulic system, an electric system, a drilling mast, a drill pipe drilling tool and the like, and can be disassembled into 10 parts. After the disassembly, the weight of any part is less than 5t, and the requirement that the cableway transportation is not more than 5t during the construction in the mountainous area is met. The chassis of the rotary drilling rig adopts the telescopic track, so that the stability is strong, and the walking performance is excellent. The rotary drilling rig can realize functions of walking locking, rotation protection, height limiting, working amplitude limiting and the like during drilling operation, and has devices for oil temperature alarming, oil level alarming, inclination angle limiting and the like. Under the condition of complex and dangerous road conditions, remote control operation can be adopted, and the safety of operators is ensured. Besides, the rotary drilling rig is more convenient to form holes, the construction site does not need too many personnel for cooperation, the step of secondary punching can be omitted, the generated slurry can be recycled, and only the slurry needs to be uniformly transported away and discharged to a specified place after the construction of the foundation cast-in-place pile is finished. Related products are available in domestic triple-play, creep, intermediate-link and mountain and river intelligence. However, the rotary drilling rig in the prior art has the defects of large equipment volume, heavy weight and more components, and the existing rotary drilling engineering machinery is difficult to perform due to the fact that the power transmission line tower foundations are dispersed, particularly, construction is carried out in hilly and mountainous regions, traffic is inconvenient, and construction material equipment needs to be carried by people. Therefore, development of portable and modularized small-sized rotary excavating equipment as soon as possible, and adaptation to construction of power transmission line tower foundations and wind power tower foundations in hills and mountains are important subjects facing science and technology workers in the field.

SUMMERY OF THE UTILITY MODEL

Dig rig weight soon to prior art's tower footing stake hole big, transport difficulty, be not convenient for not enough in mountain region hilly land construction operation etc. the utility model aims at providing a portable equipment of digging soon that is used for mountain region hilly land tower footing stake hole to satisfy hilly and mountain region transmission line tower footing and wind-powered electricity generation tower footing foundation construction needs.

The utility model provides a portable rotary digging equipment for construction of mountain and hilly area tower footing stake hole, its constitution includes support module and rotary digging integration module, the constitution of support module includes solid the support that comprises the detachable truss pole on the ground and the hoisting accessory who is used for hoisting rotary digging integration module that is settled on the support; the rotary drilling integrated module comprises a positioning adjustment module, a driving module and a drill bit module, wherein the positioning adjustment module comprises a first base, a plurality of pairs of radial abutting mechanisms and a plurality of pairs of axial abutting mechanisms, wherein the abutting mechanisms are arranged on the first base and are used for positioning the adjustment module along the hole walls of abutting piles which are distributed at equal intervals along the circumferential direction, and the plurality of pairs of axial abutting mechanisms are arranged along the vertical direction, and the front ends of the axial abutting mechanisms act on the driving module to push the drill bit to feed and adjust the drilling and excavating direction; the driving module comprises a second base, a motor arranged on the second base and used for driving the drill bit to rotate and a speed reducer fixed on a motor shaft; the drill bit module comprises a charging barrel connected with the second base and used for containing muck, a drill rod positioned in the charging barrel and fixedly connected with the output shaft of the speed reducer, and a spiral blade type drill bit fixed on the drill rod.

The utility model discloses above-mentioned portable equipment of digging soon needs dig out the operation soon after the stake drill way by the manual work. If the stake hole is whole to be adopted equipment digs the operation soon, still need design one in addition and carry out the device that leads to positioning adjustment module subaerial for promote the drill bit and feed and adjust and bore the direction of digging. Ground guider can comprise leading truck and guide bar, and the leading truck is installed on the support through the guide bar that sets up on the support, and on the leading truck passed through the vice installation guide bar of sliding connection, the leading truck was designed to hold and is pressed from both sides tightly connection structure's holding clamping jaw on the first frame of positioning adjustment module realizes that the device advances to fix a position when stake hole initial excavation, promotes the drill bit and feeds and adjust and bore the direction of digging. When the pile hole is dug in a rotary mode, the positioning, axial feeding and verticality adjusting are not needed, and the positioning adjusting module in the rotary digging integrated module is used for positioning, pushing a drill bit to feed and adjusting the drilling and digging direction. The ground guiding device can also be designed into other structural forms.

The utility model discloses still can further take following technical measure, following each item technical measure can be implemented alone, also can make up and implement, even implement in the lump.

In the above technical solution of the present invention, further: the support is of an equilateral triangle structure and consists of an upper triangular plane support, a lower triangular plane support and three vertical rods, and the three vertical rods are respectively connected with the upper triangular plane support and the lower triangular plane support; the three guide rods forming the ground guide device are preferably arranged in the middle of truss rods forming the bottom edges of three approximate small triangles respectively; the sliding connection structure for connecting the guide frame and the guide rod preferably adopts a sliding connection structure consisting of linear bearings; the hoisting device preferably adopts a hoisting device consisting of a pulley and an electric hoist. Together forming a rack module.

In the above technical solution of the present invention, further: the radial propping mechanism can be composed of a propping block for propping the hole wall of the pile, and an oil pressure piston cylinder driving mechanism, an air pressure piston cylinder driving mechanism or a screw nut driving mechanism acting on the propping block, wherein the actuating components of the oil pressure piston cylinder driving mechanism, the air pressure piston cylinder driving mechanism or the screw nut driving mechanism are connected with the propping block; preferably, oil or pneumatic piston cylinders are used. The radial propping mechanisms distributed at equal intervals along the circumferential direction can be arranged in one layer or multiple layers, and the specific arrangement is determined by the depth of the pile hole and the geological condition; furthermore, 3 pairs of radial abutting mechanisms are preferably arranged on each layer and are distributed at equal intervals of 120 degrees.

In the above technical solution of the present invention, the axial abutting mechanism can be an oil pressure piston cylinder driving mechanism, an air pressure piston cylinder driving mechanism and a screw nut driving mechanism, and the front end of the actuating member of the driving mechanism is operatively connected to the second base to push the drill bit to feed and adjust the drilling direction; preferably, an oil or pneumatic piston cylinder drive is used. Furthermore, the axial propping mechanism preferably adopts 3 pairs or 4 pairs, and when the number of the axial propping mechanisms is three, the axial propping mechanisms are symmetrically distributed on the plane in an equal radius of 120 degrees; when four pairs are adopted, the four pairs are arranged in a plane in an axisymmetric mode of 90 degrees and equal radius so as to adjust the drilling direction.

The above technical scheme of the utility model, the design has on the first frame top to press from both sides tightly to match with holding on the leading truck and constitute the connecting axle of holding clamping mechanism, and the clamping mechanism is held to what formed, holds the connecting axle by holding the clamping jaw after the leading truck contacts with the connecting axle on the first frame top piece top, and the drive is dug integrated module soon and is reciprocated along the guide bar. Furthermore, a touch sensor can be designed on one side of the holding clamping mechanism, and the touch sensor can be automatically held after the guide frame is contacted with the connecting shaft on the top of the first machine base top block, so that the working efficiency of the equipment is improved.

In the above technical solution of the present invention, the helical blade type drill bit may be of an integral structure, and the whole is made of hard alloy material; the device can also be designed to be composed of a residue soil conveying part and a rotary digging part; in order to reduce the production cost of equipment, the latter structural form is preferably adopted, a conveying part for conveying the slag soil can be made of common steel, and a rotary digging part for rotary digging soil, gravel and rock is made of hard alloy materials with better wear resistance and strength; or all the spiral blades are made of hard alloy materials, but the thickness of the spiral blade of the slag conveying part can be smaller, and the thickness of the spiral blade of the rotary digging part can be larger, so that the strength of the spiral blade is enhanced.

In the above technical solution of the present invention, the connection mode between the positioning adjustment module and the driving module in the rotary drilling integrated module may be a contact connection or a loose connection; when the connection is in contact action, the connection between the bracket module and the rotary digging integration module is connected with a cable of the hoisting device through the driving module; when the connection is loose, the support module is connected with the rotary digging integration module through the positioning adjustment module and the cable of the hoisting device.

The utility model provides a portable equipment of digging soon that is used for construction of mountain region hilly area tower footing stake hole is detachable connections between each module and between the essential element.

The utility model provides a portable equipment of digging soon for construction of mountain region hilly area tower footing stake hole, in order to be under construction in mountain region, hilly area, the bionics design has been adopted, the mode of taking the well bucket to excavate the stake hole has been borrowed to traditional workman, utilize a plurality of radial abutting mechanism of positioning adjustment module to fix the drill bit in the optional position in stake hole, but utilize a plurality of axial telescopic axial abutting mechanism of positioning adjustment module to promote the drill bit at the axial feed, through the flexible volume adjustment drill bit's of control different axial abutting mechanism direction of advancing, revise stake hole straightness that hangs down; the spiral blade type drill bit is provided with a conveying part for conveying the muck and a rotary digging part for rotary digging the soil and the rock, and the conveying part and the rotary digging part are made of different materials and different thicknesses, so that the weight and the cost of the drill bit are reduced, and the drill bit is convenient to transport in modules; after the drill bit is fed to a specified depth, the drill bit is pulled out of the pile hole by using an electric hoist fixed above the bracket to unload soil. And repeating the steps for multiple times to finish the pile hole construction.

The utility model provides a portable equipment of digging soon for construction of mountain region hilly area tower foundation pile hole, for the modularized design, compact structure is simple, easy dismounting, and is small, light in weight, single module weight is no longer than 100Kg, the transportation of the hilly mountain region of being convenient for, through changing different specification drill bits, can be fit for the excavation operation in the diameter 0.9-1.4 meters of different geology, the tower foundation pile hole of degree of depth 8-15 meters. But also has the automatic deviation rectifying function of the verticality, and ensures that the verticality of the pile hole meets the construction requirement of the pile hole of the iron tower foundation. The utility model discloses a very practical equipment is provided for in mountain region hilly land excavation tower foundation pile hole operation

Drawings

FIG. 1 is the portable pile hole rotary excavating equipment structure schematic diagram.

Fig. 2-1 is a schematic front view structure diagram of the portable pile hole rotary excavating device support module.

Fig. 2-2 is a schematic top view structure diagram of the portable pile hole rotary digging device support module.

FIG. 3-1 is a schematic view of a positioning adjustment module of the portable pile hole rotary excavating device.

Fig. 3-2 is a schematic view of a top view structure of a positioning adjustment module of the portable pile hole rotary drilling device.

In the above drawings, the objects identified by the respective drawing reference numerals are: 1-a formation; 2-protecting the wall; 3-a muck conveying section; 4-radial resisting mechanism; 5-a linear bearing; 6-a guide frame; 7-a cable; 8-a guide rod; 9-a scaffold; 10-a pulley; 11-electric hoist; 12-a soil-moving trolley; 13-axial abutting means; 14-a drive module; 15-a barrel; 16-helical blade drill bit; 17-a wheel; 18-earth moving vehicle guide rails; 19-a top block; 20-connecting shaft.

Detailed Description

The following description of the present invention will be made with reference to the accompanying drawings. It should be particularly noted that the embodiments of the present invention are not limited to the forms described in the examples.

The structure of the portable rotary excavating equipment for the construction of the foundation pile hole of the tower in the mountainous and hilly lands is shown in the attached drawings 1 to 3-2, and the portable rotary excavating equipment is composed of a support module and a rotary excavating integration module.

The structure of the bracket module is shown in the attached drawings 1, 2-1 and 2-2, and the bracket module is composed of a bracket 9 fixedly arranged on the ground, a guide device arranged on the bracket and a hoisting device arranged on the bracket and used for hoisting the rotary digging integrated module; the support is of an equilateral triangle structure and consists of an upper triangular plane support and a lower triangular plane support which are composed of detachable truss rods and upright rods; the guide device is composed of a guide frame 6 and three guide rods 8, the guide frame is installed on the support through the guide rods arranged on the support, the guide frame is installed on the guide rods through a sliding connection pair composed of linear bearings 5, and the guide frame is designed with holding clamping jaws forming a holding pair; the three guide rods are respectively arranged in the middle of the truss rods forming the bottom edges of the three approximate small triangles; the hoisting device is composed of a pulley 10 and an electric hoist 11 which are arranged on the support, and is connected with a positioning adjustment module in the rotary digging integration module through a cable 7.

The rotary drilling integration module is composed of a positioning adjustment module, a driving module (14) and a drill bit module, and is shown in attached figures 1, 3-1 and 3-2. The positioning adjustment module consists of a first base, three pairs of radial abutting mechanisms 4 which are arranged on the first base and used for fixing the positioning adjustment module along the hole walls of abutting piles which are distributed at equal intervals in the circumferential direction, and four pairs of axial abutting mechanisms 13 which are arranged in the vertical direction and have the front ends acting on the driving module to push the drill bit to feed and adjust the drilling and excavating direction; the radial propping mechanism consists of an oil pressure piston cylinder driving mechanism and a propping block 19 connected with a piston rod of the oil pressure piston cylinder driving mechanism, and three pairs of radial propping mechanisms are mutually spaced by 120⁰Arranging; the axial abutting mechanism is an oil pressure piston cylinder driving mechanism, four pairs of oil pressure piston cylinders are arranged in a 90-degree equal-radius axial symmetry mode on the plane, and piston rods of the four pairs of oil pressure piston cylinders are hinged with a second base forming a driving module; and a connecting shaft 20 is designed on the top of the first machine base, forms a holding clamping mechanism with a holding clamping jaw on a guide frame in the support module, is connected with a cable of a hoisting device in the support module, and is used for hoisting the whole rotary drilling integrated module.

The driving module is composed of a second base, a motor arranged on the second base and used for driving the drill bit to rotate and a speed reducer fixed on a motor shaft, and the second base is hinged with a piston rod in an oil pressure piston cylinder serving as an axial abutting mechanism in the positioning adjusting module.

The drill bit module comprises a charging barrel 15 which is connected with the second base and used for containing muck, a drill rod which is positioned in the charging barrel and fixedly connected with the output shaft of the speed reducer, and a helical blade type drill bit 16 which is fixed on the circumference of the drill rod; the spiral blade type drill bit is composed of a slag soil conveying part 3 and a rotary excavating part, the conveying part for conveying slag soil is made of general steel, and the rotary excavating part for rotary excavating soil, gravel and rock is made of hard alloy materials with good wear resistance and strength, so that the manufacturing cost is reduced, and the service life and the working efficiency of the spiral blade type drill bit are improved.

Portable equipment of digging soon can change the helical blade formula drill bit of isostructure according to the geological conditions of difference.

Claims (10)

1. A portable rotary excavating device for construction of a foundation pile hole of a tower in mountainous and hilly lands is characterized by comprising a support module and a rotary excavating integration module, wherein the support module comprises a support (9) which is fixedly arranged on the ground and consists of a detachable truss rod and a hoisting device which is arranged on the support and is used for hoisting the rotary excavating integration module; the rotary drilling integrated module comprises a positioning adjustment module, a driving module (14) and a drill bit module, wherein the positioning adjustment module comprises a first base, a plurality of pairs of radial abutting mechanisms (4) which are arranged on the first base and used for positioning the adjustment module and abutting against the hole wall of a tightly-abutting pile, and a plurality of pairs of axial abutting mechanisms (13) which are arranged in the vertical direction and the front ends of which act on the driving module to push a drill bit to feed and adjust the drilling and excavating direction; the driving module comprises a second base, a motor arranged on the second base and used for driving the drill bit to rotate and a speed reducer fixed on a motor shaft; the drill bit module comprises a charging barrel (15) connected with the second base and used for containing muck, a drill rod (3) positioned in the charging barrel and fixedly connected with an output shaft of the speed reducer, and a spiral blade type drill bit (16) fixed on the drill rod.

2. The portable rotary excavating equipment for foundation pile hole construction of mountain and hilly land tower according to claim 1 is characterized in that the support module is designed with a guiding device composed of a guiding frame (6) and a guiding rod (8), the guiding frame is installed on the support through the guiding rod (8) arranged on the support, the guiding frame is installed on the guiding rod through a sliding connection pair, and the guiding frame is designed with a holding clamping claw which is tightly connected with the first machine base of the positioning adjustment module.

3. The portable rotary excavating equipment for the foundation pile hole construction of the hilly land tower as claimed in claim 2, wherein the support is an equilateral triangle support, which is composed of an upper triangular plane support and a lower triangular plane support and a vertical rod.

4. The portable rotary excavating apparatus for foundation pile hole construction of hilly and mountainous land tower according to claim 3, wherein three guide bars constituting the guide means are respectively provided on truss bars forming three approximately triangular bases.

5. The portable rotary excavating equipment for the foundation pile hole construction of the hilly and mountainous land tower as claimed in claim 2, wherein the sliding connection pair connecting the guide frame and the guide rod is composed of linear bearings.

6. The portable rotary excavating equipment for the foundation pile hole construction of the hilly and mountainous land tower according to claim 1, wherein the hoisting device is composed of a pulley (10) and an electric hoist (11) which are hung on a support.

7. The portable rotary excavating equipment for the foundation pile hole construction of the hilly land tower according to one of the claims 1 to 6, characterized in that the radial abutting mechanism (4) is composed of an abutting block (19) for abutting against the pile hole wall and an oil pressure piston cylinder driving mechanism, an air pressure piston cylinder driving mechanism or a screw nut driving mechanism acting on the abutting block, and the number of layers of the plurality of pairs of radial abutting mechanisms distributed at equal intervals along the circumferential direction is at least one.

8. The portable rotary excavating equipment for foundation pile hole construction of mountainous and hilly land towers is characterized in that the top of the first base is designed with a connecting shaft (20) which is matched with the holding clamping claw on the guide frame to form a holding clamping mechanism, and a touch sensor is designed on one side forming the holding clamping mechanism.

9. The portable rotary drilling device for the foundation pile hole construction of the hilly land tower according to one of claims 1 to 6, wherein the axial propping mechanism is an oil pressure piston cylinder driving mechanism, an air pressure piston cylinder driving mechanism or a screw nut driving mechanism, and the front end of an actuating element of the driving mechanism is operatively connected with the second base to push the drill bit to feed and adjust the drilling direction.

10. The portable rotary drilling equipment for the foundation pile hole construction of the hilly land tower according to one of the claims 1 to 6, wherein the rotary drilling part of the helical blade type drill bit is made of hard alloy.

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