CN219094978U

CN219094978U - Pick extracting tool

Info

Publication number: CN219094978U
Application number: CN202320031698.8U
Authority: CN
Inventors: 向友刚
Original assignee: Foshan Teyafei Technology Co ltd
Current assignee: Foshan Teyafei Technology Co ltd
Priority date: 2023-01-06
Filing date: 2023-01-06
Publication date: 2023-05-30
Anticipated expiration: 2033-01-06

Abstract

The utility model relates to the technical field of pick disassembly and assembly. The utility model discloses a pick disassembling tool, which comprises a shell and a pick chuck, wherein the pick chuck is provided with a cutting head; the pick chuck comprises a sleeve, wherein a clamping hole for the pick head to extend in is formed in the sleeve, a pull claw seat is arranged in the clamping hole, and the pull claw seat makes linear reciprocating motion relative to the sleeve along the extending direction of the pick head; the pull claw seat is provided with a positioning hole communicated with the clamping hole and a plurality of elastic pull claws arranged around the positioning hole, and the elastic pull claws squeeze the outer wall of the pull claw seat and keep the elasticity folded towards the middle part of the pull claw seat; the shell is internally provided with a power output component for driving the pull claw seat to do linear reciprocating motion. The pick disassembling tool drives the pick chuck to disassemble the picks through linear power, and the pulling force is large; the pull claw design can be used for quickly fixing the cutting pick, and the operation is simple and convenient; the pick disassembling tool adopts a mode of disassembling the pick by external jacking and internal pulling with double acting forces, and is convenient and quick to disassemble.

Description

Pick extracting tool

Technical Field

The utility model relates to the technical field of pick disassembly and assembly, in particular to a pick disassembly tool.

Background

The cutting pick is a part on a mining and tunneling machine, is mainly used for engineering equipment such as coal mining, tunnel, ground ditching and the like, and is matched with equipment such as a coal cutter, a tunneling machine, a milling machine and the like. The pick is one of the biggest accessories of consumption among the engineering equipment, and change frequency is high, but, at present change pick all adopts the mode of manual work to pull, and the workman beats the alloy part at pick top with the hammer, makes the pick head break away from the pick box, and the pick dismantles the process and has laboriously to waste time, dismantles the inefficiency problem.

Disclosure of Invention

The utility model aims to provide a disassembling tool which is simple to operate and capable of disassembling a pick head in a express way.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a pick removing tool, in particular, comprising a housing and a pick holder; the pick chuck comprises a sleeve, wherein a clamping hole for the pick head to extend in is formed in the sleeve, a pull claw seat is arranged in the clamping hole, and the pull claw seat makes linear reciprocating motion relative to the sleeve along the extending direction of the pick head; the pull claw seat is provided with a positioning hole communicated with the clamping hole and a plurality of elastic pull claws arranged around the positioning hole, and the elastic pull claws squeeze the outer wall of the pull claw seat and keep the elasticity folded towards the middle part of the pull claw seat; the shell is internally provided with a power output component for driving the pull claw seat to do linear reciprocating motion.

The user holds this pick extracting tool through hand, makes the pick get into the centre gripping hole to in the embedding locating hole. The elastic pulling claw is clamped into the groove of the pick head and presses the surface of the pick head under the action of self elastic force, so that the pick head is fixed in the positioning hole. The power output assembly is driven to enable the jaw seat to do linear motion relative to the sleeve, the elastic jaw pulls the pick head to be linked with the jaw seat, so that the pick head is separated from the pick seat, and the pick head is detached.

Further, the elastic pull claw comprises a pull claw body and a spring for connecting the pull claw body and the pull claw seat; the spring extrudes the pull claw body, and exerts elastic force towards the middle part of the pull claw seat. The spring extrudes the pull claw body, so that the pull claw body always keeps the elasticity of folding towards the middle part of the pull claw seat. When the pick head stretches into the clamping hole, the pick head can squeeze out the pull claw body, the pull claw body keeps attached to the outer surface of the pick head under the action of elastic force until the pick head is embedded into the positioning hole, and the pull claw body is clamped into the groove of the pick head, so that the pick head is fixed in the positioning hole.

Further, the power output assembly comprises a screw rod and a motor for driving the screw rod to rotate, and the screw rod is connected with a nut block in a matched mode, and the nut block is connected with the pulling claw seat and is linked with the pulling claw seat. When the motor drives the screw rod to rotate, the nut block makes linear reciprocating motion along the longitudinal direction of the screw rod, and the jaw pulling seat linked with the nut block makes linear motion along with the nut block, so that the pick head is driven to be separated from the pick seat, and the pick head is detached.

Further, the power output assembly may further include a piston cylinder having a piston block disposed therein, the piston block forming a first cavity and a second cavity therein that are separated from each other; the piston block is connected with a piston rod which extends out of the first cavity and is connected with the pull claw seat; the shell is provided with an air inlet and an air outlet, the air inlet is connected with the first cavity, and the air outlet is connected with the second cavity. High-pressure gas enters the first cavity from the gas inlet, and presses the piston block to enable the piston block to move towards the second cavity, so that the piston rod pulls the pull claw seat to move backwards, and the pick head is driven to be separated from the pick seat, and the pick head is detached.

Further, a connecting sleeve is arranged between the shell and the pick chuck, and the connecting sleeve wraps the power output end of the power output part extending out of the shell. The cutting pick dismounting tool is prevented from being damaged by foreign object collision or rainwater wetting by protecting the part of the power output part through the connecting sleeve.

Further, the opening part of the sleeve, into which the pick head extends, is provided with a top cover, a through hole communicated with the clamping hole is arranged in the top cover, and the inner diameter of the through hole is larger than the outer diameter of the pick head and smaller than the outer diameter of the pick seat. When the pick head stretches into the clamping hole, the top cover can prop against the pick box, the pick head can be separated from the pick box under the tensile force applied by the pull claw box and the extrusion force applied by the top cover, and the detachment is faster.

The utility model has the following advantages:

(1) The pick disassembling tool drives the pick chuck to disassemble the picks through linear power, and the pulling force is large; the pull claw design can be used for quickly fixing the cutting pick, and the operation is simple and convenient;

(2) The pick disassembling tool adopts a protection design, so that a power output part can be effectively protected, and the pick disassembling tool can be ensured to be normally used in a wet place;

(3) The pick disassembling tool adopts a mode of disassembling the pick by external jacking and internal pulling with double acting forces, and is convenient and quick to disassemble.

Drawings

FIG. 1 is a schematic view of a pick removal tool according to embodiment 1 of the present utility model;

FIG. 2 is a schematic cross-sectional view of a pick removal tool according to embodiment 1 of the present utility model;

FIG. 3 is an enlarged view of a portion of FIG. 2A;

FIG. 4 is a schematic cross-sectional view of a pick removal tool according to embodiment 2 of the present utility model;

reference numerals illustrate: 1-a housing; 2-a screw; 3-a nut block; 4-a pull claw seat; 5-sleeve; 6-clamping holes; 7, positioning holes; 8-elastic pull claws; 9-pulling a claw body; 10-springs; 11-connecting sleeves; 12-top cover; 13-through holes; 14-a piston cylinder; 15-piston blocks; 16-a first cavity; 17-a second cavity; 18-a piston rod; 19-air inlet; 20-exhaust port.

Detailed Description

The utility model will be further described with reference to the drawings and examples.

Example 1

The pick detaching tool shown in fig. 1 to 3 comprises a housing 1 and a pick chuck, wherein a motor and a screw 2 are arranged in the housing 1 as a power output component for providing power output, and in practical application, the housing 1 and the motor can be integrated into an electric hand drill so as to be assembled. The output end of the electric hand drill is connected with a screw rod 2, a nut block 3 is connected to the screw rod 2 in a matched mode, and the end portion of the nut block 3 is connected with a pull claw seat 4 and is linked with the pull claw seat 4.

The pick chuck comprises a sleeve 5, a clamping hole 6 into which the pick head extends is formed in the sleeve 5, a jaw seat 4 is arranged in the clamping hole 6, and the jaw seat 4 can do linear reciprocating motion relative to the sleeve 5 along the extending direction of the pick head. The pull claw holder 4 is provided with a positioning hole 7 communicating with the holding hole 6, and a plurality of elastic pull claws 8 arranged around the positioning hole 7. The elastic pull claw 8 comprises a pull claw body 9 and a spring 10 for connecting the pull claw body 9 and the pull claw seat 4; the spring 10 presses the pull claw body 9, and applies an elastic force to the pull claw body 9 to retract toward the middle of the pull claw seat 4, so that the pull claw body 9 keeps pressing the outer wall of the pull claw seat 4 to retract toward the middle of the pull claw seat 4. When the pick head stretches into the clamping hole 6, the pick head extrudes the pull claw body 9, the pull claw body 9 keeps attached to the outer surface of the pick head under the action of elastic force until the pick head is embedded into the positioning hole 7, and the pull claw body 9 is clamped into a groove of the pick head, so that the pick head is fixed in the positioning hole 7.

In this embodiment 1, a connection sleeve 11 is provided between the housing 1 and the pick holder, and the connection sleeve 11 wraps the screw 2 which is a power output member extending out of the housing 1. The connecting sleeve 11, the shell 1 and the sleeve 5 form a protective shell of the pick detaching tool together, and play a role in protecting the pick detaching tool.

In this embodiment 1, the opening of the sleeve 5 into which the pick head extends is provided with a top cover 12, a through hole 13 communicating with the clamping hole 6 is provided in the top cover 12, and the inner diameter of the through hole 13 is larger than the outer diameter of the pick head and smaller than the outer diameter of the pick holder. When the pick head stretches into the clamping hole 6, the top cover 12 can prop against the pick box, the pick head can be separated from the pick box under the tensile force applied by the jaw seat 4 and the extrusion force applied by the top cover 12, and the detachment is faster.

The user holds the pick detaching tool, so that the pick enters the clamping hole 6 and is embedded into the positioning hole 7. The elastic pull claw 8 is clamped into the groove of the pick head and presses the surface of the pick head under the action of self elastic force, so that the pick head is fixed in the positioning hole 7. The user makes the jaw seat 4 do linear motion relative to the sleeve 5 through starting the electric hand drill, and the elastic jaw 8 pulls the pick head to be linked along with the jaw seat 4, so that the pick head is separated from the pick seat, and the detachment work of the pick head is completed.

Example 2

The present embodiment 2 is different from embodiment 1 in that, as shown in fig. 4, in the present embodiment 2, the power output member includes a piston cylinder 14, a piston block 15 is provided in the piston cylinder 14, and the piston block 15 forms a first cavity 16 and a second cavity 17 separated from each other in the piston cylinder 14; the piston block 15 is connected with a piston rod 18, and the piston rod 18 extends out of the first cavity 16 and is connected with the pull claw seat 4; the housing 1 is provided with an air inlet 19 and an air outlet 20, the air inlet 19 being connected to the first chamber 16 and the air outlet 20 being connected to the second chamber 17. High-pressure gas enters the first cavity 16 from the gas inlet 19, and presses the piston block 15 to enable the piston block 15 to move towards the second cavity 17, so that the piston rod 18 pulls the jaw seat 4 to move backwards to drive the pick head to be separated from the pick seat, and the pick head is dismounted.

The present utility model is exemplified in the description of the preferred embodiments only, and all technical equivalents made under the working principle and thought of the present utility model are considered as the protection scope of the present utility model.

Claims

1. A pick disassembling tool is characterized by comprising a shell and a pick chuck; the cutting pick chuck comprises a sleeve, a clamping hole into which a cutting pick head extends is formed in the sleeve, a pulling claw seat is arranged in the clamping hole, and the pulling claw seat linearly reciprocates relative to the sleeve along the extending direction of the cutting pick head; the pull claw seat is provided with a positioning hole communicated with the clamping hole and a plurality of elastic pull claws arranged around the positioning hole, and the elastic pull claws squeeze the outer wall of the pull claw seat and keep elasticity folded towards the middle part of the pull claw seat; the power output assembly for driving the pulling claw seat to do linear reciprocating motion is arranged in the shell.

2. The pick removal tool of claim 1, wherein the resilient pull pawl includes a pull pawl body and a spring connecting the pull pawl body and the pull pawl seat; the spring extrudes the pull claw body, and exerts elasticity towards the middle part of pull claw seat to pull claw body.

3. The pick removal tool of claim 1, wherein the power take off assembly comprises a screw and a motor for driving the screw to rotate, the screw being cooperatively coupled with a nut block, the nut block being coupled to and in communication with the pick holder.

4. The pick removal tool of claim 1, wherein the power take off assembly includes a piston cylinder having a piston block disposed therein, the piston block defining first and second cavities therein that are spaced apart from one another; the piston block is connected with a piston rod, and the piston rod extends out of the first cavity and is connected with the pull claw seat; the shell is provided with an air inlet and an air outlet, the air inlet is connected with the first cavity, and the air outlet is connected with the second cavity.

5. The pick removal tool of claim 1, wherein a connection sleeve is disposed between the housing and the pick holder, the connection sleeve wrapping a power take off end of the power take off member extending out of the housing.

6. The pick remover of claim 1, wherein the opening of the sleeve into which the pick head extends is provided with a cap, a through hole in communication with the clamping hole is provided in the cap, and the through hole has an inner diameter greater than the outer diameter of the pick head and less than the outer diameter of the pick holder.