CN111197459A

CN111197459A - Drilling tool clamp

Info

Publication number: CN111197459A
Application number: CN202010131371.9A
Authority: CN
Inventors: 韩阳; 黄献萩; 艾泽钟
Original assignee: Jsi Rock Tools Co ltd
Current assignee: Jsi Rock Tools Co ltd
Priority date: 2020-02-28
Filing date: 2020-02-28
Publication date: 2020-05-26
Anticipated expiration: 2040-02-28
Also published as: CN111197459B

Abstract

The invention discloses a drilling tool clamp which comprises a cover body, wherein the cover body is a barrel body with one concave end; the telescopic cylinder is arranged inside the cover body; the spring body, at least one transfer line, spring body middle part is the cavity both ends and is airtight body, and the telescoping cylinder passes through the transfer line and spring body inside airtight intercommunication. After the drill rod impacts the stone, the drill rod is pressed on the telescopic cylinder by the reaction force of the stone, and the liquid in the telescopic cylinder is pressed into the spring body through the liquid conveying pipe, so that the damping coefficient of the spring body is increased, the reaction force given to the drill rod by the stone is eliminated, the problem that the reaction force cannot be eliminated by the existing drill rod is solved, and the occurrence of the condition that the noise is caused when the drill rod and the impact equipment impact the operation is avoided.

Description

Drilling tool clamp

Technical Field

The invention belongs to the technical field of drilling tool accessories and relates to a drilling tool clamp.

Background

When hard stone bodies are broken and hit, after a drill rod is connected with impact equipment such as a vibratory hammer pile driver and the like, the drill rod is collided with stones by the impact equipment under repeated impact force, because a connector of the drill rod and the impact equipment is in hard connection, the drill rod cannot be eliminated by the reaction force of the stones, and under the action of the reaction force after the drill rod and the stones are collided, the drill rod can transmit the vibration caused by hammering to the impact equipment, so that the connecting part on the impact equipment is easy to loosen, and the opening rate of the impact equipment is reduced; meanwhile, due to the reaction force, the impact device itself may resonate, increasing noise.

Disclosure of Invention

In order to solve the technical problem, the invention provides a drilling tool clamp.

The invention is realized by the following technical scheme.

The invention provides a drilling tool clamp which comprises a cover body, wherein the cover body is a barrel body with one concave end;

the telescopic cylinder is arranged inside the cover body;

the spring body, at least one transfer line, spring body middle part is the cavity both ends and is airtight body, and the telescoping cylinder passes through the transfer line and spring body inside airtight intercommunication.

The infusion tube is a tube body with a soft spring; the situation that the spring body is compressed to cause tensile damage after position change during operation is avoided.

The infusion tube is a rotary infusion tube body; the condition that the infusion tube is rotated, cut and damaged due to the fact that the position of the telescopic cylinder deviates on the axis during operation is avoided.

The part of the cover body corresponding to the telescopic cylinder is provided with a mounting groove; the cover body is convenient to mount, and the mounting groove supports the telescopic cylinder.

The telescopic cylinder is arranged at the inner ring of the spring body; the volume of the cover body is reduced, and the weight is reduced.

The small end of the telescopic cylinder is matched with the mounting groove on the cover body; the outer ring of the telescopic cylinder is in contact with the inner ring of the spring body; so that the spring body obtains the guidance or support of the telescopic cylinder.

The spring body comprises a spring body ring, a sealing cover A and a sealing cover B, the center of the spring body ring is hollow, a connecting port communicated with the infusion tube is arranged on the spring body ring, and two ends of the spring body ring are sealed through the sealing cover A and the sealing cover B; when in production, the spring body ring is cast and molded, and then the sealing cover A and the sealing cover B are fixed on the spring body ring in a sealing way.

The outer rings at the two ends of the spring body ring are provided with threads, and the inner rings of the sealing cover A and the sealing cover B are both provided with threads which are hermetically connected with the two ends of the spring body ring; the sealing cover A and the sealing cover B are conveniently detached from the two ends of the spring body ring.

The invention has the beneficial effects that: after the drill rod impacts the stone, the drill rod is pressed on the telescopic cylinder by the reaction force of the stone, and the liquid in the telescopic cylinder is pressed into the spring body through the liquid conveying pipe, so that the damping coefficient of the spring body is increased, the reaction force given to the drill rod by the stone is eliminated, the problem that the reaction force cannot be eliminated by the existing drill rod is solved, and the occurrence of the condition that the noise is caused when the drill rod and the impact equipment impact the operation is avoided.

Drawings

FIG. 1 is a schematic front sectional view of the present invention;

fig. 2 is a schematic view of the installation position of the telescopic cylinder and the spring body of the invention.

In the figure: 1-a cover body; 2-a telescopic cylinder; 3-a spring body; 31-spring body ring; 32-seal cap a; 33-sealing lid B; 4-a transfusion tube; 5-a brazing body.

Detailed Description

The technical solution of the present invention is further described below, but the scope of the claimed invention is not limited to the described.

See fig. 1-2.

The invention relates to a drilling tool clamp which comprises a cover body 1, wherein the cover body 1 is a barrel body with one concave end;

the telescopic cylinder 2 is arranged in the cover body 1;

the spring body 3, at least one transfer line 4, spring body 3 middle part is the cavity both ends and is airtight body, and the telescoping cylinder 2 passes through transfer line 4 and spring body 3 inside airtight intercommunication.

The working principle is as follows: the cover body 1 outside can be equipped with the screw thread or the through-hole is connected with impact equipment, the inside of the cover body 1 and the one end of the borer body 5 through screw thread or any form fixed connection, after the borer body 5 fixed mounting is good with spring body 3 and the contact of telescopic cylinder 2 one end, after the borer body 5 impacted the stone, borer body 5 received the reaction force of stone and pressed in telescopic cylinder 2, the liquid in the telescopic cylinder 2 impresses spring body 3 through transfer line 4, make the damping coefficient of spring body 3 increase, thereby realize that the stone gives the borer body 5 reaction force and get rid of, the problem that present borer body 5 reaction force can not be eliminated has been solved, the drill rod has been avoided, impact equipment arouses the condition emergence of noise when assaulting the operation.

The infusion tube 4 is a tube body of a soft spring; the situation that the spring body 3 is compressed to cause tensile damage after position change during operation is avoided.

The infusion tube 4 is a rotary infusion tube body; the situation that the infusion tube 4 is rotated, cut and damaged due to the fact that the position of the telescopic cylinder 2 deviates on the axis during operation is avoided.

The part of the cover body 1 corresponding to the telescopic cylinder 2 is provided with a mounting groove; the installation of the cover body 1 is convenient, and the installation groove supports the telescopic cylinder 2.

The telescopic cylinder 2 is arranged at the inner ring of the spring body 3; the volume of the cover body 1 is reduced, and the weight is reduced.

The small end of the telescopic cylinder 2 is matched with the mounting groove on the cover body 1; the outer ring of the telescopic cylinder 2 is in contact with the inner ring of the spring body 3; so that the spring body 3 obtains guidance or support of the telescopic cylinder 2.

The spring body 3 comprises a spring body ring 31, a sealing cover A32 and a sealing cover B33, the center of the spring body ring 31 is hollow, a connecting port communicated with the infusion tube 4 is arranged on the spring body ring 31, and two ends of the spring body ring 31 are sealed through a sealing cover A32 and a sealing cover B33; during production, the spring body ring 31 is cast and molded, and then the upper sealing cover A32 and the sealing cover B33 are fixed on the spring body ring 31 in a sealing mode.

The outer rings of the two ends of the spring body ring 31 are provided with threads, and the inner rings of the sealing cover A32 and the sealing cover B33 are both provided with threads to be hermetically connected with the two ends of the spring body ring 31; the sealing cover A32 and the sealing cover B33 are convenient to be detached from the two ends of the spring coil 31.

Claims

1. A drilling tool clamp is characterized by comprising a cover body (1), wherein one end of the cover body (1) is a sunken barrel body;

the telescopic cylinder (2), the telescopic cylinder (2) is installed in the cover body (1);

the spring body (3) and at least one infusion tube (4), the middle part of the spring body (3) is a hollow tube body with two closed ends, and the telescopic cylinder (2) is communicated with the inside of the spring body (3) in a closed way through the infusion tube (4).

2. The drill clip of claim 1, wherein: the infusion tube (4) is a tube body with a soft spring.

3. The drill clip of claim 2, wherein: the infusion tube (4) is a rotary infusion tube body.

4. The drill clip of claim 1, wherein: the part of the cover body (1) corresponding to the telescopic cylinder (2) is provided with a mounting groove.

5. The drill clip of claim 4, wherein: the telescopic cylinder (2) is arranged at the inner ring of the spring body (3).

6. The drill clip of claim 1, wherein: the small end of the telescopic cylinder (2) is matched with the mounting groove on the cover body (1); the outer ring of the telescopic cylinder (2) is in contact with the inner ring of the spring body (3).

7. The drill clip of claim 1, 5 or 6, wherein: the spring body (3) comprises a spring body ring (31), a sealing cover A (32) and a sealing cover B (33), the center of the spring body ring (31) is hollow, a connecting port communicated with the infusion tube (4) is arranged on the spring body ring (31), and two ends of the spring body ring (31) are sealed through the sealing cover A (32) and the sealing cover B (33).

8. The drill clip of claim 7, wherein: the outer rings of the two ends of the spring body ring (31) are provided with threads, and the inner rings of the sealing cover A (32) and the sealing cover B (33) are provided with threads and are hermetically connected with the two ends of the spring body ring (31).