CN214532788U

CN214532788U - Portable rotary excavating equipment for construction of tower footing pile hole in mountainous and hilly land

Info

Publication number: CN214532788U
Application number: CN202022016000.4U
Authority: CN
Inventors: 陆小龙; 陈君; 陈黎; 张辉
Original assignee: Chengshu Power Group Co ltd
Current assignee: Chengshu Power Group Co ltd
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-10-29
Anticipated expiration: 2030-09-15

Abstract

The utility model provides a portable rotary digging device for construction of tower footing pile holes in mountainous and hilly areas, which comprises a first base fixed on the ground, a hoisting device, a rotary digging and feeding module and a rotary digging and tunneling module; the rotary excavating and feeding module comprises a feeding and jacking mechanism, a jacking block and a jacking pipe, wherein the feeding and jacking mechanism is an axial telescopic jacking mechanism, the fixed end of the feeding and jacking mechanism is connected with a supporting beam fixed on a first machine seat, and the telescopic end is used for rotary excavating and tunneling the module under the action of the jacking block and the jacking pipe; the rotary digging and tunneling module consists of a second base, a rotary digging sub-module arranged at the lower part in the second base and a conveying sub-module arranged at the upper part in the second base; the rotary excavating sub-module comprises a first driving motor, a transmission mechanism and a cutter head; the conveying sub-module comprises a hanging cylinder positioned in the second base and a conveying screw positioned in the hanging cylinder and arranged on the hanging cylinder and driven by a second driving motor through a transmission machine. 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 excavating equipment for construction of tower footing pile hole in mountainous and hilly land

Technical Field

The utility model relates to a civil engineering foundation construction pile hole excavates construction technical field, and more specifically says, relates to a portable equipment of digging soon that is used for mountain region hilly area transmission line iron tower foundation pile hole and wind pole tower foundation pile hole to excavate the 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 are always dedicated to 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.

Disclosure of Invention

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 mountain region hilly land tower footing stake hole construction dig equipment soon 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 mountain and hilly area tower footing pile hole construction rotary excavating device, which comprises a first base fixed on the ground, a hoisting device, a rotary excavating feeding module and a rotary excavating tunneling module; the rotary excavating feeding module comprises a feeding jacking mechanism, a jacking block and a jacking pipe, wherein the feeding jacking mechanism is an axial telescopic jacking mechanism, a fixed end of the feeding jacking mechanism is connected with a supporting beam fixed on a first machine seat, a telescopic end of the feeding jacking mechanism is in action connection with the jacking block, the upper end of the jacking pipe is in action connection with the jacking block, the lower end of the jacking pipe is in action connection with the rotary excavating tunneling module, and the jacking pipe is formed by assembling a plurality of pipe sections; the rotary excavating and tunneling module consists of a second base, a rotary excavating sub-module arranged at the lower part in the second base and a conveying sub-module arranged at the upper part in the second base; the rotary excavating sub-module comprises a second driving motor, a transmission mechanism and a cutter head, wherein the transmission mechanism consists of a cylindrical outer gear which is arranged on an output shaft of a first motor and is meshed with each other and an inner gear ring which is fixed on a cutter head shell; the conveying sub-module comprises a hanging cylinder positioned in the second base, a conveying screw positioned in the hanging cylinder and mounted on the hanging cylinder, a second motor and a transmission mechanism which are mounted on the hanging cylinder and drive the conveying screw, and the hanging cylinder is provided with a connecting structure connected with a steel wire rope of the lifting device.

The above technical scheme of the utility model, the tight mechanism in top of feeding and the kicking block that feed the module are dug soon to the constitution are preferably two pairs, and the hookup is two sets of tight mechanisms in top together and the kicking block can be followed respectively and fix the guide rail on a supporting beam and remove to both sides to in constituting to transport the bucket of hanging of submodule piece and hang out, arrange to fall and dig earth, gravel and sand or earth and gravel and sand that get off soon. The feeding and jacking mechanism can be a screw nut jacking mechanism or a hydraulic cylinder plug jacking mechanism, and the hydraulic cylinder plug jacking mechanism is preferably selected.

In the above technical solution of the present invention, the connection between the pipe sections constituting the top pipe is preferably designed to be assembled and connected by an inner and outer spigot ring connection structure, and of course, other connection structures may be adopted for connection; the specific number of pipe sections constituting the jacking pipe is determined by the depth of the foundation pile hole. In order to enable a steel wire of the lifting device to penetrate through a pipe hole of the jacking pipe, the pipe section can be designed to be composed of two symmetrical pipe sections, and the two pipe sections are connected through a convex-concave buckle structure to form a complete pipe section; the pipe section can also be of an integral structure, and a seam for the steel wire rope to enter the pipe hole is designed on the pipe wall.

In the above technical solution of the present invention, in order to prevent the hanging cylinder from shaking, it is considered to provide a guiding mechanism between the hanging cylinder and the second machine base, and it is preferable to adopt a guiding wheel guiding mechanism, and the guiding wheel is preferably provided on the hanging cylinder; furthermore, 3 pairs of guide wheels are arranged between the hanging cylinder and the second machine base and are symmetrically arranged in the same horizontal plane.

In the technical scheme of the utility model, the lower end of the conveying screw in the hanging cylinder preferably extends out of the hanging cylinder to the space behind the cutter head, and the soil and sand cut by the cutter head are conveyed into the hanging cylinder; the diameter of the conveying screw in the hanging cylinder is preferably slightly smaller than the inner diameter of the hanging cylinder so as to ensure that the entering soil does not automatically fall down in a large quantity in the hanging process of the hanging cylinder.

In the above technical solution of the present invention, the transmission mechanism constituting the transport sub-module is designed to be composed of a driving pulley fixed to the output shaft of the second motor, a driven pulley fixed to the conveying screw shaft, and a transmission belt.

The above technical solution of the present invention, the driving cutter head movement driving mechanism preferably adopts multi-point driving, and is driven by 3 first motors symmetrically arranged and a gear transmission pair formed by an external cylindrical gear installed on an output shaft thereof and an internal gear ring fixed on the cutter head.

The above technical scheme of the utility model, dig the blade disc in the module soon and be connected with the second frame seat of cylinder tube-shape through the back taper section of thick bamboo hookup part best, make the space behind the blade disc form the blade disc dig earth, gravel and sand under soon and get into the space between blade disc and the back taper section of thick bamboo hookup part.

The above technical scheme of the utility model, the shape structure of second frame and hanging section of thick bamboo needs the phase-match, all adopts cylindrical structure best.

The above technical scheme of the utility model, hoisting accessory can design into by the A-frame, hang pulley, hoist engine and the wire rope on the support and constitute, and wire rope one end is connected with the hoist engine, and the other end is connected through the hanging section of thick bamboo of pulley and earth discharge module.

The utility model provides a portable mountain and hilly area tower footing stake hole construction is dug equipment soon, is detachable connections between its each module and between the essential element.

The utility model discloses some other technical measures have still been taken.

In addition, it should be noted that, in the top block and the top pipe of the present invention, the meaning of "top" means propping without meaning of direction; directional terminology, such as upper, lower, left, right, front, rear, etc., is used with reference to the accompanying drawings.

The utility model provides a portable mountain hilly area tower footing stake hole construction is dug equipment soon, but dig soon and feed the module and utilize the axial tight mechanism in top that the axial is flexible to promote to dig the module through the push pipe and feed soon, dig soon the blade disc of branch module and dig the earth of digging soon, gravel and sand gets into the space between blade disc and the back taper section of thick bamboo hookup part, with earth by the transport screw who transports branch module, gravel and sand send into in the bucket, earth, gravel and sand fills after filling a bucket, earlier dig soon and feed two pairs of sub-assemblies that constitute by feeding tight mechanism in top and kicking block in the module and remove to both sides along fixing the guide rail on a supporting beam, make the bucket of hoisting by hoisting accessory hoist and hang out in following the push pipe, then the reversal transport screw, make in the bucket, gravel and sand discharge, later carry out next time and dig the operation. The top pipe structure with the rotary excavating and feeding module skillfully designed can realize that the rotary excavating and feeding module is tightly pushed up by increasing the number of pipe sections according to the deepening of the excavating depth of the pile hole, and can meet the requirement of excavating the pile holes with different depths.

The utility model provides a portable mountain region hilly area tower foundation pile hole construction is dug equipment soon, for the modularized design, compact structure is simple, easy dismounting, and is small, light in weight, and single module weight is no longer than 100Kg, and the transportation of the hilly mountain region of being convenient for can be fit for the excavation operation in the tower foundation pile hole of diameter 0.9-1.4 meters, the degree of depth 8-15 meters of different geology through changing different specification drill bits. 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 a general schematic diagram of a portable rotary digging device for discharging soil from a hanging basket.

Fig. 2 is a schematic view of a rotary excavating feeding module.

Fig. 3 is a schematic top view of the rotary excavating feeding module.

Fig. 4 is a schematic structural diagram of the rotary excavating and tunneling module.

Fig. 5 is a schematic front view of the conveying sub-module.

Fig. 6 is a schematic top view of the transport sub-module.

Fig. 7 is a schematic view of a rotary excavating sub-module.

FIG. 8 is a schematic view of a rotary excavating sub-module in a top view.

FIG. 9 is a perspective view of the top pipe section.

FIG. 10 is a front view of the top pipe section.

In the above drawings, the objects identified by the respective drawing reference numerals are: 1-earth; 2-cutter head; 3-a transmission mechanism; 4-hanging a barrel; 5-pipe jacking; 6-a first machine base; 7-left top block; 8-a scaffold; 9-a pulley; 10-a right top block; 11-a steel wire rope; 12-a winch; 13-a support beam; 14-cylindrical outer gear; 15-a first electric motor; 16-a guide wheel; 17-a driving pulley; 18-a second motor; 19-a conveying screw; 20-a driven pulley; 21-a transmission belt; 22-ring gear; 23-convex-concave snap.

Detailed Description

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

The portable rotary excavating equipment for the construction of the tower foundation pile hole in the mountainous and hilly lands has the structure shown in the attached drawings 1 to 10 and comprises a lifting device, a first base fixed on the ground, a rotary excavating and feeding module and a rotary excavating and tunneling module.

The hoisting device is composed of a bracket 8, a pulley 10 hung on the bracket, a winch 12 and a steel wire rope 11 connecting the pulley and the winch, as shown in figure 1.

The rotary excavating and feeding module comprises two pairs of hydraulic cylinder plugs, a feeding and jacking mechanism, a left jacking block 7, a right jacking block 10 and a jacking pipe 5, wherein the two pairs of hydraulic cylinder plugs are symmetrically arranged for the jacking mechanism, the bottom end of the hydraulic piston cylinder on the left side is connected with a supporting beam 13 fixed on a first machine base 6, the telescopic end is in functional connection with the jacking block of the left jacking block 7, the bottom end of the hydraulic piston cylinder on the right side is connected with the supporting beam 13 fixed on the first machine base 6, the telescopic end is in functional connection with the jacking block of the right jacking block 10, the left jacking block and the right jacking block are symmetrically arranged at the upper end of the jacking pipe, and the lower end of the jacking pipe is in functional connection with the rotary excavating and tunneling module. The pipe jacking is formed by assembling and connecting a plurality of pipe sections through an inner stop ring and outer stop ring connecting structure (shown in figure 9), each pipe section is formed by two symmetrical pipe flaps, and the two pipe flaps are structurally connected through a convex-concave buckle 23 to form a complete pipe section.

The structure of the rotary excavating and tunneling module is shown in the attached figures 4, 5, 6, 7 and 8 and is composed of a second base with a cylindrical structure, a rotary excavating sub-module arranged at the lower part in the second base and a conveying sub-module arranged at the upper part in the second base; the rotary excavating sub-module comprises a first motor 15, a transmission mechanism 3 and a cutter head, wherein the cutter head is connected through an inverted cone connecting part; the transmission mechanism consists of a cylindrical outer gear which is arranged on an output shaft of the first motor and is meshed with each other and an inner gear ring which is fixed on the cutter head shell; the first motor driving the cutter head to move and the cylindrical outer gear installed on the output shaft of the first motor are 3 pairs and are symmetrically arranged, and the first motor and the cylindrical outer gear are respectively meshed with the inner gear ring fixed on the cutter head to form 3 gear transmission pairs.

The conveying sub-module comprises a hanging cylinder 4 positioned in a second machine base, a conveying screw 19 positioned in the hanging cylinder and mounted on the hanging cylinder, a second motor 18 and a transmission mechanism which are mounted on the hanging cylinder and used for driving the conveying screw, and three guide structures which are uniformly distributed in the circumferential direction and formed by guide wheels 16 on the outer wall surface of the fixed hanging cylinder are arranged between the second machine base and the hanging cylinder; the transmission mechanism consists of a driving belt pulley 17 fixed on an output shaft of a second motor 18, a driven belt pulley 20 fixed on a shaft of a conveying screw 19 and a transmission belt 21; the hanging cylinder is provided with a connecting structure connected with a steel wire rope of the hoisting device.

Claims

1. A portable rotary excavating device for construction of a tower foundation pile hole in mountainous and hilly lands is characterized by comprising a first base (6) fixed on the ground (1), a hoisting device, a rotary excavating and feeding module and a rotary excavating and tunneling module; the rotary excavating feeding module comprises a feeding jacking mechanism, a jacking block (10) and a jacking pipe (5), wherein the feeding jacking mechanism is an axial telescopic jacking mechanism, the fixed end of the feeding jacking mechanism is connected with a supporting beam (13) fixed on a first machine seat, the telescopic end of the feeding jacking mechanism is in action connection with the jacking block, the upper end of the jacking pipe is in action connection with the jacking block, the lower end of the jacking pipe is in action connection with the rotary excavating tunneling module, and the jacking pipe is formed by assembling a plurality of pipe sections; the rotary excavating and tunneling module consists of a second base, a rotary excavating sub-module arranged at the lower part in the second base and a conveying sub-module arranged at the upper part in the second base; the rotary excavating sub-module comprises a first motor (15), a transmission mechanism and a cutter head (2), wherein the transmission mechanism consists of a cylindrical outer gear which is mutually meshed and arranged on an output shaft of the first motor and an inner gear ring which is fixed on a cutter head shell; the conveying sub-module comprises a lifting cylinder (4) positioned in the second base, a conveying screw (19) positioned in the lifting cylinder and mounted on the lifting cylinder, a second motor (18) mounted on the lifting cylinder and used for driving the conveying screw and a transmission mechanism, and the lifting cylinder is provided with a connecting structure connected with a steel wire rope of the lifting device.

2. The portable rotary excavating equipment for the foundation pile hole construction of the mountain and hilly land tower as claimed in claim 1, wherein the number of the feeding jacking mechanisms and the jacking blocks constituting the rotary excavating feeding module is two, and two sets of the jacking mechanisms and the jacking blocks connected together can move towards two sides along the guide rails fixed on the support beams respectively, so as to facilitate the hoisting of the hoisting cylinders constituting the transportation sub-modules.

3. The portable rotary excavating equipment for the construction of foundation piles in mountainous and hilly lands as claimed in claim 1, wherein the feeding and jacking mechanism is a hydraulic cylinder plug mechanism and is symmetrically arranged.

4. The portable rotary excavating equipment for the foundation pile hole construction of the mountain and hilly land tower as claimed in claim 1, wherein the pipe sections forming the top pipe are assembled and connected through an inner spigot ring and an outer spigot ring, and the pipe sections are pipe sections which enable the steel wire rope of the hoisting device to enter the pipe cavity of the top pipe from the pipe wall.

5. The portable rotary excavating apparatus for the construction of foundation pile holes in mountainous and hilly terrain according to one of claims 1 to 4, wherein a guide wheel (16) for preventing the swing of the hoisting cylinder is designed between the hoisting cylinder and the second machine base.

6. The portable rotary excavating equipment for the construction of the foundation pile hole of the mountain and hilly land tower as claimed in claim 5, wherein 3 pairs of guide wheels are arranged between the hoisting cylinder and the second machine base and are symmetrically arranged in the same horizontal plane.

7. The portable rotary excavating equipment for the foundation pile hole construction of the mountain and hilly land tower as claimed in one of claims 1 to 4, wherein the lower end of the conveying screw in the hanging cylinder extends out of the hanging cylinder to the space behind the cutter head, and the soil cut by the cutter head is conveyed into the hanging cylinder.

8. The portable rotary excavating equipment for the construction of foundation pile holes on the mountainous and hilly land tower as claimed in one of claims 1 to 4, wherein the diameter of the conveying screw in the hanging cylinder is slightly smaller than the inner diameter of the hanging cylinder so as to ensure that the entering soil does not automatically fall down in a large amount during the hanging process of the hanging cylinder.

9. The portable rotary excavating apparatus for foundation pile hole construction in mountainous and hilly land tower according to one of claims 1 to 4, wherein the transmission mechanism constituting the transportation sub-module is a pulley transmission mechanism, and is composed of a driving pulley (17) fixed on the output shaft of the second motor (18), a driven pulley (20) fixed on the shaft of the conveying screw (19) and a transmission belt (21).

10. The portable rotary excavating equipment for foundation pile hole construction in mountainous and hilly land tower as claimed in one of claims 1 to 4, wherein the first motor (15) driving the cutter head to move and the cylindrical external gear installed on the output shaft thereof have 3 pairs, and are symmetrically arranged and respectively engaged with the internal gear ring fixed on the cutter head to form 3 gear transmission pairs.