Centralizing device for advanced drilling

Abstract

The utility model discloses a centralizing device for advanced drilling, which comprises a circular support group component, a connecting plate annularly arranged at the peripheral edge of the support group component, an expansion bolt sleeving pipe arranged at the outer end part of the connecting plate, and a plurality of expansion bolts arranged between the expansion bolt sleeving pipe and expansion bolt connecting holes in a one-to-one correspondence manner, the plurality of supporting wheels are annularly arranged on the supporting group assembly in a sleeving manner and are used for supporting the edge of the drill rod in a rolling manner; the supporting set assembly comprises an upper end ring, a lower end ring and a plurality of supporting cylinders arranged between the upper end ring and the lower end ring. The supporting wheels sleeve the supporting cylinders in a one-to-one correspondence manner; and the connecting plate is connected with the upper end ring or the lower end ring. By means of the scheme, the advanced drilling device has the advantages of being simple in structure, convenient and reliable to install and the like, and has high practical value and popularization value in the technical field of advanced drilling.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of advance drilling, especially a righting device for advance drilling. BACKGROUND

[0002] Advance drilling is a technology widely used in engineering construction and geological exploration, mainly used for pre-exploration of underground conditions before construction. Currently, the advance drilling in the prior art is to open a grouting hole 300 on a rock mass 100. When the drill rod is drilled into the rock mass, problems such as swinging or deviation may occur, especially when the grouting hole is drilled upwardly.

[0003] Therefore, there is an urgent need to provide a righting device for advance drilling which is simple in structure and convenient and reliable to install. UTILITY MODEL CONTENT

[0004] In view of the above problems, the utility model aims to provide a righting device for advance drilling, and the technical scheme adopted by the utility model is as follows:

[0005] A righting device for advance drilling is fixed on a rock mass and supports a drill rod of a grouting hole to be opened, a plurality of expansion bolt connecting holes are opened on the rock mass, the expansion bolt connecting holes are arranged around the edges of the grouting hole to be opened, the righting device for advance drilling comprises a support group assembly in a circular shape, a connecting plate arranged around the edges of the support group assembly in an annular manner, an expansion bolt sleeve pipe arranged at the outer end of the connecting plate, a plurality of expansion bolts arranged one by one between the expansion bolt sleeve pipe and the expansion bolt connecting holes, and a plurality of support wheels annularly sleeved on the support group assembly and rolling supporting the edges of the drill rod.

[0006] The support group assembly comprises an upper end ring and a lower end ring, and a plurality of support cylinders are arranged between the upper end ring and the lower end ring; the support wheels are correspondingly sleeved on the support cylinders; and the connecting plate is connected with the upper end ring or the lower end ring.

[0007] Further, the connecting plate is connected with the lower end ring, and the connecting plate and the lower end ring are provided with a plurality of T-shaped reinforcing plates at the bottom.

[0008] Further, a through hole is opened on the upper end ring, the support cylinder and the lower end ring, an extrusion adjusting screw is arranged in the through hole, a lower nut and an upper nut are sleeved on the extrusion adjusting screw, the lower nut is arranged at the lower part of the lower end ring, and the upper nut is arranged at the upper part of the upper end ring, and the extrusion adjusting screw is extruded on the rock mass.

[0009] Further, the connecting plate is provided with at least two.

[0010] Further, the support wheels are rubber wheels.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] (1) The utility model discloses a support group subassembly is set up to support the support wheel, and the drill rod of the grouting hole to be set up is inserted into the support group subassembly and is supported by the support wheel, and the support is reliable.

[0013] (2) The utility model discloses a support group subassembly is supported through the connecting plate, expansion bolt sleeve pipe, expansion bolt and expansion bolt connecting hole, and reliable installation of the support group subassembly is guaranteed.

[0014] (3) The utility model discloses a T-shaped reinforcing plate is set up to strengthen the connecting plate and the lower end ring, and the support reliability is further guaranteed.

[0015] (4) The utility model discloses a support group subassembly is reliably extruded on the rock mass through the extrusion adjusting screw rod, lower nut and upper nut, and the position of the lower nut and the upper nut is adjusted, and the support reliability is further guaranteed.

[0016] In conclusion, the utility model has the advantages of simple structure, convenient and reliable installation and the like, and has very high practical value and popularization value in the field of the advanced drilling technology. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will briefly introduce the drawings needed to be used in the embodiments, and should understand that the following drawings only show some embodiments of the utility model, and should not be regarded as the limitation to the protection scope, and for the person skilled in the art, can also obtain other related drawings according to these drawings without the creative labor.

[0018] Fig. 1 It is the installation structure schematic diagram of the utility model.

[0019] Fig. 2 It is the structure schematic diagram of the utility model.

[0020] Fig. 3 It is the structure schematic diagram of the first angle of the support group subassembly of the utility model.

[0021] Fig. 4 It is the structure schematic diagram of the second angle of the support group subassembly of the utility model.

[0022] In the above-mentioned drawings, the component name corresponding to the reference numeral is as follows:

[0023] 100, rock mass; 200, expansion bolt connecting hole; 300, grouting hole; 1, support group assembly; 2, connecting plate; 3, expansion bolt sleeve pipe; 4, expansion bolt; 5, support wheel; 11, upper end ring; 12, lower end ring; 13, support cylinder; 14, through hole; 15, T-shaped reinforcing plate; 61, extrusion adjusting screw rod; 62, lower nut; 63, upper nut. DETAILED DESCRIPTION

[0024] For the purpose, technical solutions and advantages of the present application, the present application will be further described below in conjunction with the drawings and examples, the implementation of the present application includes but is not limited to the following examples. Based on the examples in the present application, all other examples obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0025] Embodiment

[0026] In this embodiment, the term "and / or" is only a description of the association relationship between the associated objects, which means that there may be three kinds of relationships, for example, A and / or B, which can represent the existence of A alone, the existence of A and B together, and the existence of B alone.

[0027] The terms "first" and "second" and the like in the description and claims of the present embodiment are used to distinguish different objects, and are not used to describe the specific order of the objects. For example, the first target object and the second target object are used to distinguish different target objects, and are not used to describe the specific order of the target objects.

[0028] In the embodiments of the present application, the words "exemplary" or "for example" are used to mean serving as an example, instance, or illustration. Any embodiment or design scheme described as "exemplary" or "for example" in the embodiments of the present application should not be construed as being more preferred or advantageous than other embodiments or design schemes. Rather, the use of "exemplary" or "for example" is intended to present relevant concepts in a concrete manner.

[0029] In the description of the embodiments of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more. For example, a plurality of processing units refers to two or more processing units; a plurality of systems refers to two or more systems.

[0030] As Figs. 1 to 4As shown, the embodiment provides a centralizing device for advanced drilling, which is fixed on the rock mass 100 and supports the drill rod of the grouting hole 300 to be drilled. A plurality of expansion bolt connecting holes 200 are arranged on the rock mass 100, and the expansion bolt connecting holes 200 are arranged around the edges of the grouting hole 300 to be drilled. In the embodiment, a plurality of expansion bolt connecting holes 200 are first arranged in the area where the grouting hole is to be drilled, and then the expansion bolts 4 are installed, so that the support assembly 1 can be installed.

[0031] In the embodiment, the centralizing device for advanced drilling includes a support assembly 1 in a circular shape, a connecting plate 2 arranged around the edges of the support assembly 1 in a ring shape, an expansion bolt sleeve pipe 3 arranged at the outer end of the connecting plate 2, a plurality of expansion bolts 4 arranged one by one between the expansion bolt sleeve pipe 3 and the expansion bolt connecting hole 200, and a plurality of support wheels 5 arranged in a ring shape on the support assembly 1 and rolling supporting the edges of the drill rod. The drill rod is inserted into the support assembly 1 and rolling supported by the support wheels 5.

[0032] The support assembly 1 includes an upper end ring 11 and a lower end ring 12, a plurality of support cylinders 13 arranged between the upper end ring 11 and the lower end ring 12, through holes 14 arranged from top to bottom in the upper end ring 11, the support cylinders 13 and the lower end ring 12, and a T-shaped reinforcing plate 15 arranged at the bottom of the connecting plate 2 and the lower end ring 12. The support wheels 5 are arranged one by one on the support cylinders 13.

[0033] In addition, in order to realize reliable extrusion support of the support assembly 1, an extrusion adjusting screw 61 is arranged in the through hole 14, and a lower nut 62 and an upper nut 63 are arranged on the extrusion adjusting screw 61. The lower nut 62 is arranged at the lower part of the lower end ring 12, and the upper nut 63 is arranged at the upper part of the upper end ring 11. The extrusion adjusting screw 61 is extruded on the rock mass 100.

[0034] The use process of the device is briefly described as follows:

[0035] A plurality of expansion bolt connecting holes 200 are arranged in the area where the grouting hole 300 is to be drilled, the expansion bolts 4 are arranged, and the expansion bolt sleeve pipe 3 is connected, so that the support assembly 1 can be installed. The lower nut 62 and the upper nut 63 are adjusted, so that the extrusion adjusting screw 61 is extruded on the rock mass 100, and the support assembly 1 can be reliably installed. After the support assembly 1 is installed, the drill rod can be inserted to drill the grouting hole 300.

[0036] The above embodiment is only a preferred embodiment of the present application, and does not limit the protection scope of the present application. Any change made on the basis of the design principle of the present application and non-creative labor shall belong to the protection scope of the present application.

Claims

1. A device for straightening a hole in advance, fixed on a rock mass (100), and supporting a drill rod of a grouting hole (300) to be opened, characterized in that: The rock mass (100) is provided with a plurality of expansion bolt connection holes (200); the expansion bolt connection holes (200) are arranged on the edges of the grouting hole (300) to be opened; the straightening device for the advanced drilling comprises a circular support group assembly (1), a connecting plate (2) annularly arranged on the edges of the support group assembly (1), an expansion bolt sleeve tube (3) arranged at the outer end of the connecting plate (2), a plurality of expansion bolts (4) arranged one-to-one between the expansion bolt sleeve tube (3) and the expansion bolt connection holes (200), and a plurality of support wheels (5) annularly sleeved on the support group assembly (1) and providing rolling support for the edge of the drill pipe; The support group assembly (1) comprises an upper end ring (11) and a lower end ring (12), and a plurality of support cylinders (13) arranged between the upper end ring (11) and the lower end ring (12); the support wheels (5) are sleeved on the support cylinders (13) in a one-to-one correspondence; and the connecting plate (2) is connected to the upper end ring (11) or the lower end ring (12).

2. The straightening device for advanced drilling according to claim 1, characterized in that: The connecting plate (2) is connected to the lower end ring (12); a plurality of T-shaped reinforcing plates (15) are provided at the bottom of the connecting plate (2) and the lower end ring (12).

3. A straightening device for advanced drilling according to claim 1 or 2, characterized in that: A through hole (14) is provided on the upper end ring (11), the support tube (13) and the lower end ring (12); an extrusion adjustment screw (61) is provided in the through hole (14); a lower nut (62) and an upper nut (63) are sleeved on the extrusion adjustment screw (61); the lower nut (62) is placed at the lower part of the lower end ring (12), and the upper nut (63) is placed at the upper part of the upper end ring (11); the extrusion adjustment screw (61) is extruded on the rock mass (100).

4. The device for straightening a hole in advance according to claim 2, characterized in that: At least two connecting plates (2) are provided.

5. The straightening device for advanced drilling according to claim 1, characterized in that: The supporting wheel (5) is a rubber wheel.

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