WO2020093269A1

WO2020093269A1 - Floating spacing adjustment-type reverse well drilling rig

Info

Publication number: WO2020093269A1
Application number: PCT/CN2018/114365
Authority: WO
Inventors: 赵钧羡
Original assignee: 江苏和信石油机械有限公司
Priority date: 2018-11-06
Filing date: 2018-11-07
Publication date: 2020-05-14
Also published as: CN109252811B; CN109252811A

Abstract

A floating spacing adjustment-type reverse well drilling rig, comprising a base support (1), a telescopic mechanism (2), a drill rod (4), a drill bit (5), and a T-shaped adjustment screw (10). An adjustment structure of a floating spacing of an outer ring sleeve (81) is added to the reverse well drilling rig. An adjustment groove (821) and an adjustment screw hole (822) are provided on an inner ring sleeve (82). One end of the T-shaped adjustment screw (10) penetrates the adjustment groove (821) and is then threaded and connected in the adjustment screw hole (822). One end of the T-shaped adjustment screw (10) extends between an inner side of the inner ring sleeve (82) and an outer side of a clamping plate (83), and the other end of the T-shaped adjustment screw (10) is located in the adjustment groove (821). In the foregoing manner, the distance between the T-shaped adjustment screw (10) and the clamping plate (83) is the floating distance between the outer ring sleeve (81) and the inner ring sleeve (82), such that the objective of being able to control the spacing is achieved, and the present invention is thus more flexible to use.

Description

Floating pitch adjustment type reverse well drilling rig

Technical field

The invention relates to a floating spacing adjusting type reverse well drilling rig.

Background technique

At present, reverse drilling rigs are mainly used in vertical shafts, inclined shafts, surge tanks, ventilation shafts and drainage shafts in hydropower projects, railway construction ventilation shafts and mine slag wells, etc. The drill bit in the reverse drilling rig is the most important part of the entire mechanism. Generally, the drill bit includes a cutter head, a cutter seat, and a hob. The cutter seat is installed on the cutter head, and the hob is installed on the cutter seat. The distribution and structure of the hob It has a great influence on the efficiency and stability of rock breaking. The existing hob has an integrated cylindrical structure with grinding ribs on the side of the cylindrical structure, but such an integrated hob will be damaged after long-term operation Impact damage or severe wear and tear, so the entire hob is scrapped, and the hob needs to be disassembled and reinstalled as a new hob, which affects the operation efficiency and operating cost; the angle of the hob in the prior art cannot be based on the rock breaking surface The adjustment causes the contact between the hob and the rock breaking surface to be inconsistent and the rock breaking efficiency is low.

Summary of the invention

In view of the above-mentioned shortcomings of the prior art, the problem solved by the present invention is to provide a floating spacing adjustable type reverse drilling rig with a controllable floating spacing and a drill bit that can float to fit a rock breaking surface.

To solve the above problems, the technical solutions adopted by the present invention are as follows:

A floating spacing adjustment type anti-well drilling rig includes a base bracket, a telescopic mechanism, a drill rod, a drill bit, and a T-shaped adjusting screw; the telescopic mechanism is installed on the base bracket; the drill rod is installed on the upper end of the telescopic mechanism; The drill bit is installed at the upper end of the drill rod; the drill bit includes a cutter head, a cutter seat, a drill, and a connecting shaft; the cutter head is installed at the upper end of the drill rod; and a plurality of cutter seats are installed at the upper end of the cutter head ; The cutter seat is installed with a connecting shaft; the drill is installed on the connecting shaft in the cutter seat; the drill includes an outer ring sleeve, an inner ring sleeve, a plurality of clamping plates, a plurality of elastic The outer ring sleeve is movablely connected to the outer side of the inner ring sleeve; the inner side of the inner ring sleeve is evenly installed with a plurality of clamping plates; the outer side of the clamping plate is fixedly installed between the inner wall of the inner ring sleeve A plurality of elastic bodies; the elastic body elastically presses the clamping plate to move toward the center of the inner ring body; the connecting shaft penetrates between the plurality of clamping plates; A semicircular guide bar; the inside of the clamping plate is provided with a semicircular guide groove; The semi-circular guide bar on the outer side of the connecting shaft is inserted into the semi-circular guide groove of the clamping plate; the outer circumference of the inner ring sleeve is provided with a plurality of adjustment grooves; the inner sides of the adjustment grooves are respectively connected There is an adjustment screw hole; the outer side of the clamping plate corresponds to an adjustment screw hole; one end of the T-shaped adjustment screw passes through the adjustment groove and is screwed into the adjustment screw hole; the T-shaped adjustment screw One end extends between the inner side of the inner ring body and the outer side of the clamping plate; the other end of the T-shaped adjusting screw is located in the adjusting groove.

Further, the connecting shaft has a cylindrical structure; the cross section of the clamping plate has an arc structure; the plurality of clamping plates surround a circular track structure; and the plurality of clamping plates clamp and paste It fits around the outside of the connecting shaft.

Further, the inner ring sleeve is provided with an internal thread section; the outer ring sleeve is provided with an external thread section; the inner ring sleeve is threadedly connected to the outer ring sleeve through the external thread section On the internal thread section.

Further, the outer ring sleeve is made of titanium alloy material.

Further, the knife holder has a U-shaped structure.

Further, it also includes a rotation drive mechanism; the rotation drive mechanism is installed at the upper end of the telescopic drive mechanism; and the bottom of the drill rod is installed at the upper end of the rotation drive mechanism.

The beneficial effects of the present invention

The invention adds an adjustment structure for the floating spacing of the outer ring sleeve, and an adjustment groove and an adjustment screw hole are provided on the inner ring sleeve. One end of the T-shaped adjustment screw passes through the adjustment groove and is screwed into the adjustment screw hole, and one end of the T-shaped adjustment screw Extends between the inner side of the inner ring body and the outer side of the clamping plate, the other end of the T-shaped adjusting screw is located in the adjustment groove, so the distance between the T-shaped adjusting screw and the clamping plate is the outer ring sleeve and the inner ring sleeve Floating pitch, from controllable purpose, use more flexible; the invention changes the structure of traditional drill, the drill includes outer ring sleeve, inner ring sleeve, multiple clamping plates, multiple elastic bodies, using inner ring The sleeve serves as an intermediate carrier, and the clamping plate is installed inside the outer ring sleeve, which can facilitate the disassembly of the clamping plate, and at the same time, a plurality of elastic bodies are fixedly installed between the outer side of the clamping plate and the inner wall of the inner ring sleeve. Clamp the connecting shaft, so that the outer ring sleeve can elastically expand and contract on the connecting shaft, so that the outer ring sleeve can float and expand according to the structure of the rock breaking surface, which improves the efficiency of rock breaking.

BRIEF DESCRIPTION

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of the enlarged side view of the drill bit of the present invention.

Fig. 3 is a schematic sectional view of the drill of the present invention.

4 is a schematic structural view of the inner ring sleeve, multiple clamping plates, multiple elastic bodies, and T-shaped adjusting screws of the present invention.

5 is a schematic structural view of an outer ring sleeve of the present invention.

6 is a schematic cross-sectional view of the connecting shaft of the present invention.

detailed description

The content of the present invention will be further described in detail below with reference to the drawings.

As shown in FIGS. 1 to 6, a floating spacing adjustable type reverse drilling rig includes a base bracket 1, a telescopic mechanism 2, a drill rod 4, a drill bit 5, and a T-shaped adjusting screw 10; the telescopic mechanism 2 is installed on the base bracket 1; the drill rod 4 is installed at the upper end of the telescopic mechanism 2; the drill bit 5 is installed at the upper end of the drill rod 4; the drill bit 5 includes a cutter head 6, a tool holder 7, a drill 8, and a connecting shaft 9; the cutter head 6 is installed at the upper end of the drill rod 4; the cutter head 6 is installed at the upper end of a plurality of cutter seats 7; the cutter seat 7 is installed with a connecting shaft 9; the drill cutter 8 is installed at On the connecting shaft 9 in the tool holder 7; as shown in FIGS. 3 and 4, the drill 8 includes an outer ring sleeve 81, an inner ring sleeve 82, a plurality of clamping plates 83, and a plurality of elastic bodies 84; The outer ring sleeve 81 is movably sleeved on the outer side of the inner ring sleeve 82; a plurality of clamping plates 83 are evenly installed on the inner side of the inner ring sleeve 82; between the outer side of the clamping plate 83 and the inner wall of the inner ring sleeve 82 A plurality of elastic bodies 84 are fixedly installed; the elastic body 84 elastically presses the clamping plate 83 to move toward the center of the inner ring body 82; the connecting shaft 9 penetrates between the plurality of clamping plates 83; as shown in FIG. 4 And 6 shows that A plurality of semicircular guide bars 91 are provided on the outer sides of the connecting shaft 9; a semicircular guide 831 is provided on the inner side of the clamping plate 83; the semicircular guide bars 91 on the outer sides of the connecting shaft 9 are inserted Connected in the semi-circular guide groove 831 of the clamping plate 83. A plurality of adjustment grooves 821 are provided on the outer side of the inner circumference of the inner ring sleeve 82; an adjustment screw hole 822 is respectively communicated on the inner side of the adjustment groove 821; an outer side of the clamping plate 83 corresponds to an adjustment screw Hole 822; one end of the T-shaped adjusting screw 10 passes through the adjusting slot 821 and is screwed into the adjusting screw hole 822; one end of the T-shaped adjusting screw 10 extends to the inner side of the inner ring body 82 and the outer side of the clamping plate 83 Between; the other end of the T-shaped adjusting screw 10 is located in the adjusting slot 821.

As shown in FIGS. 1 to 6, it is further preferred that the connecting shaft 9 has a cylindrical structure; the cross section of the clamping plate 83 has an arc structure; the plurality of clamping plates 83 enclose a circular track structure ; The plurality of clamping plates 83 are clamped and fit on the outer sides of the surroundings of the connecting shaft 9. Further preferably, the inner ring sleeve 81 is provided with an internal thread section 811; the outer ring sleeve 82 is provided with an external thread section 821; the inner ring sleeve 82 passes through the external thread section 821 The screw thread is connected to the inner thread section 811 of the outer ring sleeve 81. Further preferably, the outer ring sleeve 81 is made of titanium alloy material. Further preferably, the knife holder 7 has a U-shaped structure. Further preferably, it further includes a rotation drive mechanism 3; the rotation drive mechanism 3 is installed at the upper end of the telescopic drive mechanism 2; and the bottom of the drill rod 4 is installed at the upper end of the rotation drive mechanism 3.

The present invention adds an adjustment structure for the floating pitch of the outer ring sleeve 81. An adjustment groove 821 and an adjustment screw hole 822 are provided on the inner ring sleeve 82. One end of the T-shaped adjustment screw 10 passes through the adjustment groove 821 and is screwed to the adjustment screw hole 822 Inside, one end of the T-shaped adjusting screw 10 extends between the inner side of the inner ring body 82 and the outer side of the clamping plate 83, and the other end of the T-shaped adjusting screw 10 is located in the adjusting groove 821, so that the T-shaped adjusting screw 10 and the clamping plate 83 The distance between them is the floating distance between the outer ring sleeve 81 and the inner ring sleeve 82. From the controllable purpose, the use is more flexible; the present invention changes the structure of the traditional drill 8 which includes the outer ring sleeve 81 , The inner ring sleeve 82, a plurality of clamping plates 83, a plurality of elastic bodies 84, using the inner ring sleeve 82 as an intermediate carrier, the clamping plate 83 is installed inside the outer ring sleeve 81, at the same time outside and inside the clamping plate 83 A plurality of elastic bodies 84 are fixedly installed between the inner walls of the ring sleeve 82, and the connecting shaft 9 is clamped and connected by a plurality of clamping plates 83, so that the outer ring sleeve 81 can elastically float and contract on the connecting shaft 9, so that the outer ring sleeve 81 can be expanded and contracted according to the structure of the rock breaking surface, which improves the efficiency of rock breaking.

The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the present invention. Within the scope of protection.

Claims

A floating spacing adjustment type anti-well drilling rig includes a base bracket, a telescopic mechanism, a drill rod, and a drill bit; the telescopic mechanism is installed on the base bracket; the drill rod is installed on the upper end of the telescopic mechanism; and the drill bit is installed At the upper end of the drill rod; the drill bit includes a cutter head, a tool holder, a drill, and a connecting shaft; the cutter head is installed at the upper end of the drill rod; the cutter head is equipped with a plurality of cutter seats; the cutter A connecting shaft is installed in the seat; the drill is installed on the connecting shaft in the seat; it is characterized in that it also includes a T-shaped adjusting screw; the drill includes an outer ring sleeve, an inner ring sleeve, and a plurality of clamps A holding plate and a plurality of elastic bodies; the outer ring sleeve is movably sleeved on the outer side of the inner ring sleeve; the inner side of the inner ring sleeve is evenly installed with a plurality of clamping plates; the outer side of the clamping plate and the inner ring A plurality of elastic bodies are fixedly installed between the inner walls of the sleeve; the elastic body elastically presses the clamping plate to move toward the center of the inner ring body; the connecting shaft penetrates between the plurality of clamping plates; the connecting shaft There are a number of semi-circular guide bars on the outside of the four sides; the inside of the clamping plate is provided with Semicircular guide groove; the semicircular guide bar on the outer side of the connecting shaft is inserted into the semicircular guide groove connected to the clamping plate; the outer side of the inner ring sleeve is provided with a plurality of adjustment grooves; An inner side of the adjusting groove communicates with an adjusting screw hole; an outer side of the clamping plate corresponds to an adjusting screw hole; one end of the T-shaped adjusting screw passes through the adjusting groove and is screwed into the adjusting screw hole The one end of the T-shaped adjusting screw extends between the inner side of the inner ring body and the outer side of the clamping plate; the other end of the T-shaped adjusting screw is located in the adjusting groove.
The floating spacing adjustment type anti-well drilling rig according to claim 1, wherein the connecting shaft has a cylindrical structure; the cross section of the clamping plate has an arc structure; and the plurality of clamping plates surround A circular track structure is formed; the multiple clamping plates are clamped and fit on the outer sides of the connecting shaft.
The floating spacing adjustment type anti-well drilling rig according to claim 1, characterized in that an inner thread section is provided inside the outer ring sleeve; an outer thread section is provided outside the inner ring sleeve; The inner ring sleeve is threadedly connected to the inner thread section of the outer ring sleeve through the outer thread section.
The floating spacing adjustment type anti-wellbore rig according to claim 1, wherein the outer ring sleeve is made of titanium alloy material.
The floating-pitch-adjustable back-drilling rig according to claim 1, characterized in that the tool holder has a U-shaped structure.
The floating-pitch-adjustable reverse well drilling rig according to claim 1, further comprising a rotary drive mechanism; the rotary drive mechanism is installed at the upper end of the telescopic drive mechanism; .