CN202544758U

CN202544758U - Drill rod

Info

Publication number: CN202544758U
Application number: CN2012200353141U
Authority: CN
Inventors: 张慧颖; 吴阎松; 张烨雯
Original assignee: Shanghai Engineering Machinery Co Ltd
Current assignee: Shanghai Engineering Machinery Co Ltd
Priority date: 2012-02-03
Filing date: 2012-02-03
Publication date: 2012-11-21
Anticipated expiration: 2022-02-03

Abstract

The utility model relates to a drill rod, which comprises a hollow rod element, protecting wall blocks and stirring rods, wherein seat blocks are symmetrically arranged at the outer wall of a rod body in the radial direction of the hollow rod element, a support plate is welded and fixed with the inner arc surface of an arc-shape plate, the protecting wall blocks are fixedly arranged in a seat groove of each block seat through the support plate via a pin shaft, the number of the stirring rods is several groups, in addition, the stirring rods are positioned in different positions of the rod body lower than the protecting wall blocks, each group of stirring rods comprise one pair or two pairs of stirring rods symmetrically arranged in the radial direction of the hollow rod element, each stirring rod comprises a rod body and a rod seat, the rod seat is welded and fixed at the outer wall of the rod body, the rod body is fixedly arranged in the groove of the rod seat by a pin shaft, the rod bodies between the upper and lower adjacent groups of stirring rods are in staggered distribution and arrangement in the radial direction of the rod body, and the rotating diameters of the free ends of the protecting wall blocks and the stirring rods are identical. The drill rod has the advantages that the protecting wall blocks in symmetric arrangement are adopted, hole walls can be effectively protected, the drilling quality is improved, the safety performance is ensured, the structures of the protecting wall blocks and the stirring rods can be dismounted, the use cost is reduced, and the operation efficiency of a drilling machine is further improved.

Description

A kind of drilling rod

Technical field

The utility model belongs to a kind of drilling rod, the auger drilling rod that particularly a kind of filling pile construction is used.

Background technology

Along with developing rapidly of urban skyscraper, large bridge and hydraulic engineering, increasingly high to the requirement for bearing capacity of ground, therefore, the stake footpath of various foundation piles is also increasing, thereby forms various forms of large-section in-situ concrete piles.Prior art generally adopts full screw earth auger or single shaft rig when carrying out the in situ pile excavation construction, because such rig does not generally have the retaining wall function; And the helical mixing blade of drilling rod normally adopts the form of structure that is fixed on its outer wall; Therefore can not effectively protect the hole wall that bores pick formation, the landslide accident takes place and can't guarantee construction safety along with the increase of drilling depth is easy, and borehole accuracy can not get guaranteeing; In addition; Maintenance is complicated when helical blade occur to damage, and is time-consuming and cost is high, influences bore operation efficient.

Summary of the invention

The main purpose of the utility model is to overcome the shortcoming that existing borer drill rod exists; A kind of hole wall and stirring piece and the retaining wall piece ability drilling rod for convenience detach that can effectively protect boring to form is provided, effectively improves bore operation safety, drilling quality, reduction use cost and improve efficiency of construction.

For reaching above purpose, the solution that the utility model adopted is:

A kind of drilling rod comprises:

Hollow rods, comprise the body of rod, socket, spigot and place the body of rod and the socket endoporus in grout pipe;

The retaining wall piece comprises arc, support plate and block;

Puddler comprises the body of rod and pole socket;

It is characterized in that:

Said block is arranged in the outer wall that is positioned at the body of rod under the socket along the hollow rods radial symmetric, and the intrados welding of said support plate and arc is fixing, and they are installed in the seat groove of block through said support plate (22) with bearing pin then;

Said puddler has many groups; And be positioned on the following body of rod diverse location of retaining wall piece; Each group puddler comprises a pair of or two pairs of puddlers of arranging along the hollow rods radial symmetric, and each puddler comprises a body of rod and a pole socket, wherein; Pole socket is fixedly welded on the outer wall of the body of rod of hollow rods, and the body of rod is installed in the groove of pole socket with bearing pin;

The utility model can be that said retaining wall number of blocks is 2,4 or 6, arranges along the body of rod radial symmetric of hollow rods.

The utility model can also be that the body of rod in said many group puddlers between neighbouring one group of puddler is that arrangement is arranged in dislocation at the body of rod along hollow drill pipe in the radial direction.

The utility model can also be that said retaining wall piece and the puddler free end rotating diameter when rotating with hollow drill pipe equates.

The utility model drilling rod has following good effect and advantage:

1, according to the utility model; When rig bores the pick operation downwards; The retaining wall piece that is arranged in the body of rod outer wall that is positioned under the hollow rods socket along the hollow rods radial symmetric can effectively be protected the hole wall that bores pick formation; Reduction is because of the situation that landslide causes construction safety to guarantee, the hole quality of the inwall of guaranteeing to hole effectively improves bore operation efficient.

2, according to the utility model, be arranged symmetrically on the body of rod of hollow rods the retaining wall piece with stir piece and adopt the detachable structure, simple in structure, easy to make, low cost of manufacture, job failure are low.

Description of drawings

Fig. 1 is the structural representation of the utility model auger drilling rod;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is a vertical view among Fig. 1;

Graphical sysmbol: 1-hollow rods, 2-retaining wall piece, 3-puddler, the 10-body of rod, 11-socket, 12-spigot, 13-grout pipe, 21-arc, 22-support plate, 23-block, the 31-body of rod, 32-pole socket, 231-straight trough, 321-groove.

The specific embodiment

Said embodiment is further described the utility model drilling rod below in conjunction with accompanying drawing.

Like Fig. 1, Fig. 2 and shown in Figure 3, a kind of auger drilling rod comprises: hollow rods 1, comprise the body of rod 10, socket 11, spigot 12 and place the body of rod 10 and socket 11 endoporus in grout pipe 13; Retaining wall piece 2 comprises arc 21, support plate 22 and block 23; Puddler 3 comprises the body of rod 31 and pole socket 32; It is characterized in that: said block 23 is arranged in the outer wall of the body of rod 10 that is positioned under the socket 11 along hollow rods 1 radial symmetric; Said support plate 22 is fixing with the intrados welding of arc 21, and they are installed in the seat groove 231 of block 23 through said support plate 22 usefulness bearing pins then; Said retaining wall piece 2 quantity are 2,4 or 6, arrange along the body of rod 10 radial symmetric of hollow rods 1; Said puddler 3 has many groups; And be positioned on the following body of rod 10 diverse locations of retaining wall piece 2; Each group puddler 3 comprises a pair of or two pairs of puddlers of arranging along hollow rods 1 radial symmetric 3, and each puddler 3 comprises a body of rod 31 and a pole socket 32, wherein; Pole socket 32 is fixedly welded on the outer wall of the body of rod 10 of hollow rods 1, and the body of rod 31 usefulness bearing pins are installed in the groove 321 of pole socket 32; The body of rod 31 in said many group puddlers 3 between neighbouring one group of puddler 3 is that arrangement is arranged in dislocation at the body of rod 10 along hollow drill pipe 1 in the radial direction; Said retaining wall piece 2 equates with the rotating diameter of puddler 3 free ends with hollow drill pipe 1 rotation the time.

When auger installation the utility model drilling rod carries out in situ pile brill pick operation; At first operate the hoist engine of pile frame; Unit head is sling and the unit head guide holder is located in the guide rail of column, the socket 11 of hollow rods 1 is installed, and pin with bearing pin at the output of unit head; Select suitable retaining wall run of steel according to the designing requirement drilling depth, and connect retaining wall drilling rod and drill bit; Start drill power head; Retaining wall drilling rod and drill bit begin rotation; Since the deadweight the effect drill bit bore digging earth downwards, the 3 pairs of soil of many groups puddler that are symmetrically arranged in the body of rod 10 outer walls of hollow rods 1 stir, and along hollow rods 1 radial symmetric be arranged in the body of rod 10 outer walls and be positioned at puddler 3 tops retaining wall piece 2 when rotated the hole body inwall is pushed and retaining wall; Form a smooth inwall of hole body closely; Hole wall just is difficult for causing the hole body landslide closely, has guaranteed to bore the pick construction safety, and satisfies the quality requirement of pore-forming; When if retaining wall piece of retaining wall drilling rod 2 and puddler 3 wearing and tearing are excessive; Can be through pulling down the bearing pin that is installed between support plate 22 and block 23, the body of rod 31 and the pole socket 32; Change retaining wall piece 2 and puddler 3 easily; Effectively reduce the maintenance cost of applying unit like this, improved the efficiency of construction of auger.

Claims

1. drilling rod comprises:

Hollow rods (1), comprise the body of rod (10), socket (11), spigot (12) and place the body of rod (10) and socket (11) endoporus in grout pipe (13);

Retaining wall piece (2) comprises arc (21), support plate (22) and block (23);

Puddler (3) comprises the body of rod (31) and pole socket (32);

It is characterized in that:

Said block (23) is arranged in the outer wall of the body of rod (10) that is positioned under the socket (11) along hollow rods (1) radial symmetric; Said support plate (22) is fixing with the intrados welding of arc (21), and they are installed in the seat groove (231) of block (23) through said support plate (22) with bearing pin then;

Said puddler (3) has many groups; And be positioned on the body of rod (10) diverse location below the retaining wall piece (2); Each group puddler (3) comprises a pair of or two pairs of puddlers of arranging along hollow rods (1) radial symmetric (3), and each puddler (3) comprises a body of rod (31) and a pole socket (32), wherein; Pole socket (32) is fixedly welded on the outer wall of the body of rod (10) of hollow rods (1), and the body of rod (31) is installed in the groove (321) of pole socket (32) with bearing pin.

2. auger drilling rod according to claim 1 is characterized in that: said retaining wall piece (2) quantity is 2,4 or 6, arranges along the body of rod (10) radial symmetric of hollow rods (1).

3. auger drilling rod according to claim 1 is characterized in that: the body of rod (31) in said many group puddlers (3) between neighbouring one group of puddler (3) is that arrangement is arranged in dislocation at the body of rod (10) along hollow drill pipe (1) in the radial direction.

4. auger drilling rod according to claim 1 is characterized in that: said retaining wall piece (2) and puddler (3) the free end rotating diameter when rotating with hollow drill pipe (1) equates.