CN110761705A

CN110761705A - Power head with damping function for rotary drilling rig

Info

Publication number: CN110761705A
Application number: CN201911110063.1A
Authority: CN
Inventors: 常军; 夏春
Original assignee: Xuzhou Jianchuan Machinery Manufacturing Co Ltd
Current assignee: Xuzhou Jianchuan Machinery Manufacturing Co Ltd
Priority date: 2019-11-14
Filing date: 2019-11-14
Publication date: 2020-02-07
Anticipated expiration: 2039-11-14
Also published as: CN110761705B

Abstract

The invention discloses a power head for a rotary drilling rig with a damping function, which comprises a support and a side frame arranged on one side of the support, wherein the support is in a cylindrical shape, a through groove penetrating through the upper bottom surface and the lower bottom surface is formed in the support, a driving ring is rotatably arranged in the through groove, an inner clamping sleeve sleeved outside a drill rod is arranged on the inner side of the driving ring, damping units are arranged in the middle of the driving ring and the inner clamping sleeve, a plurality of mounting strips are circumferentially distributed in the inner clamping sleeve, and a plurality of round beads are rotatably arranged on the inner side surface of each mounting strip; and a driving device for driving the driving ring to rotate is arranged in the side frame. In the installation process of the drill rod, the ball can achieve the effect of convenient installation; the device can reduce radial vibration, play a role in buffering and prevent the gear from being damaged due to vibration.

Description

Power head with damping function for rotary drilling rig

Technical Field

The invention belongs to the technical field of rotary drilling rigs, and particularly relates to a power head for a rotary drilling rig with a damping function.

Background

The rotary drilling rig is a construction machine suitable for hole forming operation in building foundation engineering, and a power head of a conventional rotary drilling rig is driven by a motor and transmits power to a drill rod for drilling operation. In the conventional drilling process, due to geological conditions, the power head body is often subjected to axial impact and radial impact, a gear on equipment is damaged to a certain extent, and parts inside the rotary drilling rig are damaged. Therefore, there is an urgent need for a rotary drilling rig that can solve the above problems.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the power head for the rotary drilling rig with the damping function, and the rotary drilling rig can reduce axial and radial vibration.

In order to achieve the purpose, the invention adopts the following technical scheme:

a power head for a rotary drilling rig with a damping function comprises a support and a side frame installed on one side of the support, wherein the support is in a cylindrical shape, a through groove penetrating through upper and lower bottom surfaces is formed in the support, a driving ring is rotatably installed in the through groove, an inner clamping sleeve sleeved outside a drill rod is installed on the inner side of the driving ring, damping units are arranged in the middle of the driving ring and the inner clamping sleeve, a plurality of mounting strips are circumferentially distributed in the inner clamping sleeve, and a plurality of round beads are rotatably installed on the inner side surfaces of the mounting strips; and a driving device for driving the driving ring to rotate is arranged in the side frame.

Preferably, bearings are respectively mounted at the upper end and the lower end of the inner wall of the through groove, the upper end and the lower end of the drive ring are respectively rotatably mounted in the through groove through the bearings, the damping unit comprises a plurality of clamping blocks mounted on the inner annular surface of the drive ring and convex blocks mounted on the outer peripheral wall of the inner clamping sleeve, the clamping blocks are circumferentially distributed on the drive ring, the convex blocks are in one-to-one correspondence with the clamping blocks, grooves are formed in the clamping blocks, and the front ends of the convex blocks are matched with the grooves and clamped in the grooves.

Preferably, the driving device comprises a first gear and a second gear which are rotatably installed inside the side frame, the first gear and the second gear are meshed with each other, teeth are arranged on the outer ring surface of the middle part of the driving ring, the second gear is meshed with the driving ring, a driving motor for driving the first gear to rotate is installed on the upper part of the side frame, and the driving motor is connected with the first gear through a connecting shaft.

Preferably, the number of the clamping blocks and the lugs is 15-20.

Compared with the prior art, the invention has the beneficial effects that:

(1) according to the drill rod, the inner clamping sleeve is provided with the plurality of mounting strips, and the row of round beads are mounted on the inner sides of the mounting strips, so that the round beads can achieve the effect of convenience in mounting in the process of mounting the drill rod;

(2) the invention realizes that the device can reduce radial vibration, play a role in buffering and prevent the gear from being damaged due to vibration by installing a plurality of groups of clamping blocks and convex blocks between the driving ring and the inner clamping sleeve.

Drawings

FIG. 1 is an internal cross-sectional view of the present invention;

FIG. 2 is a cross-sectional view taken at A-A of FIG. 1 in accordance with the present invention;

FIG. 3 is an enlarged view of the invention at B in FIG. 2.

Description of reference numerals:

1. the drill rod comprises side frames, 2, a connecting shaft, 3, a first gear, 4, a second gear, 5, a driving ring, 6, an inner clamping sleeve, 7, a ball, 8, a mounting strip, 9, a bearing, 10, a driving motor, 11, a support, 12, clamping blocks, 13, a bump, 14 and a drill rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 3, the power head for the rotary drilling rig with the shock absorption function comprises a support 11 and a side frame 1 installed on one side of the support 11, wherein the support 11 is cylindrical, a through groove penetrating through the upper bottom surface and the lower bottom surface is formed in the support 11, a driving ring 5 is rotatably installed in the through groove, an inner clamping sleeve 6 sleeved outside a drill rod 14 is installed on the inner side of the driving ring 5, shock absorption units are arranged in the middle of the driving ring 5 and the inner clamping sleeve 6, a plurality of mounting bars 8 are circumferentially distributed in the inner clamping sleeve 6, a plurality of round beads 7 are rotatably installed on the inner side surface of each mounting bar 8, and the cylindrical 7 can play a role in axial shock absorption and is beneficial to installation; the side frame 1 is internally provided with a driving device for driving the driving ring 5 to rotate.

Specifically, the upper end and the lower end of the inner wall of the through groove are respectively provided with a bearing 9, the upper end and the lower end of the driving ring 5 are respectively rotatably arranged in the through groove through the bearings 9, the damping unit comprises a plurality of clamping blocks 12 arranged on the inner annular surface of the driving ring 5 and convex blocks 13 arranged on the outer peripheral wall of the inner clamping sleeve 6, the clamping blocks 12 are circumferentially distributed on the driving ring 5, the convex blocks 13 are arranged in a plurality and are in one-to-one correspondence with the clamping blocks 12, the clamping blocks 12 are provided with grooves, the front ends of the convex blocks 13 are matched with the grooves and clamped in the grooves, and the clamping blocks 12 are connected with the convex blocks 13, so that the damping effect can be achieved when radial vibration occurs.

Particularly, drive arrangement installs at the inside first gear 3 and the second gear 4 of side bearer 1 including rotating, first gear 3 and the intermeshing of second gear 4, be equipped with the tooth on the middle part outer ring face of drive ring 5, second gear 4 and drive ring 5 meshing connection, the upper portion of side bearer 1 is installed and is used for driving first gear 3 pivoted driving motor 10, driving motor 10 is connected with first gear 3 through connecting axle 2, and driving motor 10 drives first gear 3 through connecting axle 2 and rotates, and first gear 3 drives second gear 4 and rotates, second gear 4 drives drive ring 5 and rotates, and drive ring 5 drives drilling rod 14 through the inner tooth cover and rotates.

Specifically, the number of the fixture blocks 12 and the projections 13 is 15-20, which can achieve a supporting effect.

After this device installation is accomplished, driving motor 10 drives first gear 3 through connecting axle 2 and rotates, first gear 3 drives second gear 4 and rotates, second gear 4 drives driving ring 5 and rotates, driving ring 5 drives drilling rod 14 through interior tooth cover and rotates, when drilling rod 14 is at the during operation, can produce radial vibrations and axial vibrations, when producing the axial vibrations, because be equipped with ball 7 on the mounting bar 8, drilling rod 14 is at the in-process of up-and-down motion, ball 7 can play and reduce the axial vibrations, when producing radial vibrations, the cooperation between fixture block 12 and the lug 13 is connected, can realize reducing radial vibrations, vibrations reduce and can play the tooth on protection gear and the driving ring 5, play the cushioning effect.

It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.

Claims

1. The utility model provides a dig unit head for rig soon with shock-absorbing function, includes support (11) and installs side bearer (1) in support (11) one side, its characterized in that: the support (11) is cylindrical, a through groove penetrating through the upper bottom surface and the lower bottom surface is formed in the support (11), a driving ring (5) is rotatably arranged in the through groove, an inner cutting sleeve (6) sleeved outside a drill rod (14) is arranged on the inner side of the driving ring (5), a damping unit is arranged in the middle of the driving ring (5) and the inner cutting sleeve (6), a plurality of mounting strips (8) are circumferentially distributed in the inner cutting sleeve (6), and a plurality of round beads (7) are rotatably arranged on the inner side surface of each mounting strip (8); and a driving device for driving the driving ring (5) to rotate is arranged in the side frame (1).

2. The power head with the shock absorption function for the rotary drilling rig according to claim 1, wherein bearings (9) are respectively mounted at the upper end and the lower end of the inner wall of the through groove, the upper end and the lower end of the driving ring (5) are respectively rotatably mounted in the through groove through the bearings (9), the shock absorption unit comprises a plurality of clamping blocks (12) mounted on the inner annular surface of the driving ring (5) and convex blocks (13) mounted on the outer peripheral wall of the inner clamping sleeve (6), the clamping blocks (12) are circumferentially distributed on the driving ring (5), the convex blocks (13) are in a plurality and correspond to the clamping blocks (12) one by one, grooves are formed in the clamping blocks (12), and the front ends of the convex blocks (13) are matched with the grooves and clamped in the grooves.

3. The power head with the shock absorption function for the rotary drilling rig is characterized in that the driving device comprises a first gear (3) and a second gear (4) which are rotatably mounted inside a side frame (1), the first gear (3) and the second gear (4) are meshed with each other, teeth are arranged on the outer circumferential surface of the middle of the driving ring (5), the second gear (4) is meshed with the driving ring (5), a driving motor (10) for driving the first gear (3) to rotate is mounted on the upper portion of the side frame (1), and the driving motor (10) is connected with the first gear (3) through a connecting shaft (2).

4. The power head with the shock absorption function for the rotary drilling rig according to claim 3, wherein the number of the clamping blocks (12) and the number of the convex blocks (13) are 15-20.