CN217872649U

CN217872649U - A reaming device for collapsible loess foundation treatment

Info

Publication number: CN217872649U
Application number: CN202222031196.3U
Authority: CN
Inventors: 李涛; 张多宏; 丁建兴; 朱全海; 杨志强; 王少英; 杨天宇; 张彦忠
Original assignee: Gansu Water Conservancy Mechanization Engineering Co ltd
Current assignee: Gansu Water Conservancy Mechanization Engineering Co ltd
Priority date: 2022-08-03
Filing date: 2022-08-03
Publication date: 2022-11-22
Anticipated expiration: 2032-08-03

Abstract

The utility model relates to a collapsible loess foundation consolidates the field, especially relates to a reaming device for collapsible loess foundation is handled, including the drilling rod, the bottom edge central symmetry of drilling rod is provided with the reaming piece, the reaming piece is connected with the drilling rod through the extension subassembly, and the reaming piece is the heliciform, and the width of reaming piece is increased gradually to the top by the bottom, and the inboard angular position in bottom of reaming piece is less than outside angular position, the utility model discloses a soil is peeled off at rotatory in-process to the reaming piece of helical shape to upwards conduct soil along the helicoid of reaming piece, the soil deposit of effectively avoiding peeling off causes in the decline of foundation hole bottom to the reaming piece and blocks, thereby has improved drilling efficiency.

Description

A reaming device for collapsible loess foundation treatment

Technical Field

The utility model relates to a collapsible loess foundation consolidates the field, especially relates to a reaming device for collapsible loess foundation treatment.

Background

The collapsible property of collapsible loess foundation can bring different degrees of harm to the structure, so that the structure is greatly settled, cracked and inclined, and even the safety and the use of the structure are seriously influenced.

Current patent document CN210033289U discloses a reaming device for soft soil foundation stabilization, and the device includes drilling rod and drill bit, drill bit fixed connection is in the bottom of drilling rod, the circumference surface that the drilling rod is close to the bottom articulates there are a plurality of boring cutters, the drilling rod has offered the external screw thread near the circumference surface of bottom, the surperficial threaded connection internal thread sleeve of external screw thread, the surperficial cover that is close to the bottom of drilling rod is equipped with the sliding sleeve, the sliding sleeve is close to the inner wall on top and is connected with the telescopic surface rotation of internal thread, one side that the boring cutter is close to the drilling rod is connected with the sliding sleeve through support piece, and the device has solved when driling to the soft soil foundation, and the aperture that the drilling rod bored is less, is difficult for adjusting the size of drilling, and the size of making a round trip to change drilling rod is comparatively troublesome, has brought inconvenient problem for the use.

The expansion amplitude of the drill cutters is adjusted in a mode of rotating the drill rod up and down, the multiple groups of drill cutters are distributed in a conical mode, the soil layer is stripped through the side edges of the drill cutters in the rotating process, the drill cutters do not have the capacity of transferring soil in the vertical direction, and the stripped soil layer has a large blocking effect on the descending of the drill cutters, so that the reaming speed is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the following problems existing in the prior art: the expansion amplitude of the drill cutters is adjusted in a mode of rotating the drill rod up and down, the multiple groups of drill cutters are distributed in a conical mode, the soil layer is stripped through the side edges of the drill cutters in the rotating process, the drill cutters do not have the capacity of transferring soil in the vertical direction, and the stripped soil layer has a large blocking effect on the descending of the drill cutters, so that the reaming speed is low.

For solving the problem that prior art exists, the utility model provides a reaming device for collapsible loess foundation treatment, including the drilling rod, the bottom edge central symmetry of drilling rod is provided with the reaming piece, the reaming piece is connected with the drilling rod through the extension subassembly, and the reaming piece is the heliciform, and the width of reaming piece is increased to the top gradually by the bottom, and the inboard angular position in bottom of reaming piece is less than outside angular position, and the rig is connected at the top of drilling rod, and rig drive drilling rod is rotatory, makes reaming piece synchronous revolution under the drive of extension subassembly, and heliciform reaming piece bottom interior angle contacts soil earlier, expands to the edge gradually, and the soil layer of being peeled off is upwards conducted along the upper surface of reaming piece, effectively avoids soil deposition to cause to block moving down of reaming piece.

Preferably, the distance between the inner side edge of the reaming sheet and the axis of the drill rod is gradually enlarged from bottom to top, so that the drilling diameter is gradually enlarged from the bottom to the upper part of the rotating reaming sheet.

Preferably, the bottom end of the drill rod is in a taper shape, and the bottom end of the reaming piece is lower than the bottom end of the drill rod, so that the reaming piece firstly contacts with soil to form a hole moving downwards, and then the drill rod enters the hole.

Preferably, the extension subassembly includes the jack-post, and the jack-post is fixed along radially the drilling rod is outside, the lower fixed surface of reaming piece has a jack-post, and the jack-post is pegged graft with the jack-post adaptation, and the screw has been seted up to the surface equidistance of jack-post, and the outside interlude of jack-post has the screw of connecting the screw, according to the demand of trompil diameter, slides the flexible length of jack-post and jack-post, makes the reaming piece reach and sets for the expansion distance, uses the screw to penetrate to correspond to the screw of position in to jack-post, jack-post length locking.

Preferably, a rubber plug is inserted into the screw hole exposed outside the shaft cylinder, so that soil is prevented from entering the screw hole in the hole drilling process, and the cleaning is inconvenient.

Preferably, the horizontal bending angle of the reaming sheet is smaller than 180 degrees, so that the reaming sheet cannot hook the drill rod when the position of the reaming sheet is expanded and adjusted.

Preferably, the end face of the jack-post is regular polygon, the inner cavity of the jack-post is matched with the jack-post in a sliding manner, so that the jack-post is matched with the jack-post in an anti-torsion manner, and the connection stability of the reaming piece is improved.

Preferably, a fixing strip is fixed on the lower surface of the reaming piece at the lower part of the connecting point of the shaft cylinder, so that the deformation resistance strength of the narrow area at the bottom of the reaming piece is enhanced.

Compared with the prior art, the utility model provides a reaming device for collapsible loess foundation is handled has following beneficial effect:

the utility model discloses a soil is peeled off at rotatory in-process to the reaming piece of helical shape to upwards conduct soil along the helicoid of reaming piece, the soil deposit of effectively avoiding peeling off causes in the decline of foundation hole bottom to the reaming piece and blocks, thereby has improved drilling efficiency.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

fig. 2 is a schematic structural view of the reaming sheet of the present invention;

fig. 3 is a schematic structural view of the extension assembly of the present invention;

fig. 4 is a schematic view of the structure of the axle column of the present invention.

Reference numbers in the figures: 1. a drill stem; 2. a hole expanding sheet; 3. a column shaft; 4. a shaft cylinder; 5. fixing strength strips; 6. a screw hole; 7. and a rubber plug.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The following detailed description is provided for the specific embodiments of the present invention.

Example one

As shown in fig. 1-2, a hole enlarging device for collapsible loess foundation treatment is assembled by the following components:

assembly description: two extension subassemblies are symmetrically connected to the side edge of the bottom of a drill rod 1, the extension subassemblies extend along the radial direction of the drill rod 1, the end parts of the extension subassemblies are welded with reaming pieces 2, the extension subassemblies are positioned on the bottom surfaces of the reaming pieces 2, the turning directions of the two reaming pieces 2 are the same, the bottom ends of the reaming pieces 2 are lower than the bottom ends of the drill rod 1, and the distances between the inner spiral edge and the outer spiral edge of each reaming piece 2 and the axis of the drill rod 1 are sequentially increased from bottom to top.

The working principle is as follows: the rig is connected at the top of drilling rod 1, and rig drive drilling rod 1 is rotatory, makes reaming piece 2 synchronous revolution under the drive of extension subassembly, and the 2 bottom interior angles of heliciform reaming piece contact soil earlier, gradually to edge extension glass soil, and the soil layer of being peeled off is upwards conducted along the upper surface of reaming piece 2, effectively avoids soil deposition to moving down of reaming piece 2 to cause and block to drill out the ground hole gradually.

Example two

As shown in fig. 1 to 4, a hole enlarging device for collapsible loess foundation treatment is assembled by the following components:

assembly description: two extension subassemblies of side symmetric connection in the bottom of drilling rod 1, the extension subassembly includes jack-post 3, jack-post 3 is along drilling rod 1 radial rather than fixed, the tip of jack-post 3 is provided with reaming piece 2, the solid shaft barrel 4 is fixed to the bottom surface of reaming piece 2, jack-post 3 is pegged graft with jack-post 4, use the screw to pass 6 threaded fixation of screw on jack-

post

4 and 3 surfaces of jack-post, the direction of rotation of two reaming pieces 2 is the same, the bottom of reaming piece 2 is less than the bottom of drilling rod 1, the interior spiral limit of reaming piece 2, the distance of outer spiral limit and drilling rod 1 axis increases from bottom to top in proper order, it aligns sealedly to peg graft rubber buffer 7 in the screw 6 that does not shelter from, the lower surface at reaming piece 2 is located the below fixed power strip 5 of jack-post 4 hookup location.

The working principle is as follows: the rig is connected at the top of

drilling rod

1, 1 rotations of rig drive drilling rod, make 2 synchronous rotations of reaming piece under the drive of extension subassembly, the earlier soil that contacts of 2 bottom interior angles of spiral helicine reaming piece, gradually to edge expansion glass soil, the soil layer of being peeled off is upwards conducted along the upper surface of reaming piece 2, effectively avoid soil deposition to cause moving down of reaming piece 2 and block, thereby drill out the foundation hole gradually, demand according to the trompil diameter, the flexible length of slip shaft section of thick bamboo 4 and jack-post 3, make reaming piece 2 reach and set for the expansion distance, use the screw to penetrate to jack-post 3 in the screw 6 of corresponding position, 4 length locking of jack-post, make reaming piece 2 set out the foundation hole of corresponding diameter.

Claims

1. The utility model provides a reaming device for collapsible loess foundation is handled, includes drilling rod (1), its characterized in that, the bottom edge central symmetry of drilling rod (1) is provided with reaming piece (2), reaming piece (2) are connected with drilling rod (1) through the extension subassembly, and reaming piece (2) are the heliciform, and the width of reaming piece (2) is increased gradually from bottom to top, and the inboard angular position in bottom of reaming piece (2) is less than outside angular position.

2. The hole expanding device for collapsible loess foundation treatment as set forth in claim 1, wherein the distance between the inner side edge of the hole expanding piece (2) and the axis of the drill rod (1) is gradually increased from bottom to top.

3. A hole enlarging device for collapsible loess foundation treatment as claimed in claim 2, wherein the bottom end of the drill pipe (1) is tapered, and the bottom end of the hole enlarging sheet (2) is lower than the bottom end of the drill pipe (1).

4. The hole expanding device for collapsible loess foundation treatment according to claim 1, wherein the extension assembly comprises a shaft column (3), the shaft column (3) is fixed outside the drill rod (1) along a radial direction, a shaft cylinder (4) is fixed on the lower surface of the hole expanding piece (2), the shaft column (3) is in adaptive insertion connection with the shaft cylinder (4), screw holes (6) are formed in the surface of the shaft column (3) at equal intervals, and screws for connecting the screw holes (6) are inserted in the outer part of the shaft cylinder (4).

5. A hole enlarging device for collapsible loess foundation treatment as claimed in claim 4, wherein a rubber stopper (7) is inserted into the screw hole (6) exposed outside the shaft tube (4).

6. A reaming device for collapsible loess foundation treatment according to claim 4, wherein the horizontal bending angle of the reaming sheet (2) is less than 180 °.

7. The hole expanding device for collapsible loess foundation treatment as claimed in claim 4, wherein the end surface of the shaft column (3) is a regular polygon, and the inner cavity of the shaft cylinder (4) is in sliding fit with the shaft column (3).

8. The hole expanding device for collapsible loess foundation treatment as set forth in claim 4, wherein a fixing strip (5) is fixed to the lower surface of the hole expanding piece (2) at the lower part of the connecting point of the shaft cylinder (4).