CN216342110U

CN216342110U - Telescopic cutting pick

Info

Publication number: CN216342110U
Application number: CN202122763630.2U
Authority: CN
Inventors: 高建平; 薛仰春; 高兰芳
Original assignee: Anhui Kaisente Mining Machinery Manufacturing Co ltd
Current assignee: Anhui Kaisente Mining Machinery Manufacturing Co ltd
Priority date: 2021-11-12
Filing date: 2021-11-12
Publication date: 2022-04-19
Anticipated expiration: 2031-11-12

Abstract

The utility model discloses a telescopic cutting pick which comprises a base, a telescopic unit and a buffer unit, wherein the telescopic unit is arranged on the base; a threaded hole is formed in the side surface of the base; the telescopic unit comprises a barrel, a first limiting groove, a first limiting column, a telescopic rod, a mounting groove and a cutting tooth shaft part, wherein a base is mounted on the inner bottom surface of the barrel, the mounting groove is formed in the upper surface of the base, the telescopic rod is mounted on the mounting groove, the cutting tooth shaft part is fixedly mounted at the end part of the telescopic rod, the first limiting column is further fixedly mounted on the upper surface of the base, the first limiting groove is formed in the lower surface of the cutting tooth shaft part, the first limiting groove is connected with the first limiting column in a sliding mode, and the cutting tooth head part is mounted at the upper end of the cutting tooth shaft part; the buffer unit is arranged on the lower surface of the cylinder body. This scalability pick structure reliability is high, and stability is good, and scalability is effectual, and shock attenuation and buffering are effectual to reduce the loss of pick, still conveniently change and maintain the tool bit.

Description

Telescopic cutting pick

Technical Field

The utility model relates to the technical field of excavator parts, in particular to a telescopic cutting pick.

Background

Apparatus for mining or excavating in hard ground includes a rotary tool in which a plurality of protruding picks are mounted for engagement with the ground. The picks bite into the ground as they rotate with the drum, impacting the earth and removing or breaking up the earth from the surface.

Wherein the kind of pick that application number was 201610641949.9 and proposed in the modern technology, its technical essential is including tool bit, the pick body and pick seat, be equipped with the installation department that is used for installing the tool bit on the pick body, the installation department is round platform form setting, be equipped with the mounting groove on the up end of installation department, the mounting groove is conical setting, the lateral wall of mounting groove is by the open end of mounting groove towards the bottom direction of mounting groove, along the radial inside convergent of the central axis, be equipped with the installation piece with mounting groove looks adaptation on the tool bit, be equipped with four bar grooves on the surface of installation department, the bar groove is dwindled by pick seat direction towards tool bit direction, the lower extreme of installation department is equipped with the ring channel that sets up along the installation department centre of a circle, be equipped with two on the pick seat and be the solid fixed ring that the clearance set up.

The retractable cutting pick has the advantages of low structural reliability, general stability, general retractable effect and general shock absorption and buffering effects, and therefore the retractable cutting pick is provided.

SUMMERY OF THE UTILITY MODEL

The utility model aims to overcome the defects in the prior art, and provides a telescopic cutting pick which is high in structure reliability, good in stability, good in telescopic effect and good in damping and buffering effects, so that the loss of the cutting pick is reduced, a tool bit is convenient to replace and maintain, and the problems in the background art can be effectively solved.

In order to achieve the purpose, the utility model provides the following technical scheme: a telescopic cutting pick comprises a base, a telescopic unit and a buffer unit;

a threaded hole is formed in the side surface of the base;

a telescopic unit: the cutting pick comprises a barrel body, a first limiting groove, a first limiting column, a telescopic rod, a mounting groove and a cutting pick shaft part, wherein a base is mounted on the inner bottom surface of the barrel body, the mounting groove is formed in the upper surface of the base, the telescopic rod is mounted on the mounting groove, the cutting pick shaft part is fixedly mounted at the end part of the telescopic rod, the first limiting column is also fixedly mounted on the upper surface of the base, the first limiting groove is formed in the lower surface of the cutting pick shaft part, the first limiting groove is connected with the first limiting column in a sliding mode, and the cutting pick head part is mounted at the upper end of the cutting pick shaft part;

a buffer unit: which is mounted on the lower surface of the cylinder.

Furthermore, the telescopic unit further comprises a sliding block and a sliding groove, the sliding groove is formed in the inner surface of the cylinder, the sliding block is fixedly mounted on the outer surface of the cutting pick shaft portion, and the sliding block is connected with the sliding groove in a sliding mode. The smooth property of the cutting pick shaft part during ascending or descending can be improved through the sliding block and the sliding groove.

Further, the telescopic unit further comprises a first bolt, a threaded hole is formed in the outer surface of the barrel, a nut is installed on the first bolt in a threaded mode, and the barrel is fixedly connected with the threaded hole of the base through the first bolt and the nut in a threaded mode. Install barrel and base through first bolt and nut and fix, the installation is fixed, prevents that the base from droing.

Furthermore, the cutting pick further comprises a cutter head and a first thread groove, the first thread groove is formed in the upper surface of the cutting pick head, an external thread is formed in the outer surface of the lower end of the cutter head, and the external thread of the cutter head is in threaded connection with the first thread groove. Thereby promote through the contact of tool bit to ground and excavate efficiency, the external screw thread and the convenient screw thread of first thread groove of tool bit are dismantled to the tool bit screw thread, change and maintain the tool bit again, prevent the wearing and tearing of tool bit, cause work efficiency to reduce.

Further, the buffer unit contains a second limit groove, a second limit post, a fixture block and a compression spring, the lower surface of the barrel is provided with the compression spring, the lower end of the compression spring is provided with the fixture block through a fixing support, the upper surface of the fixture block is provided with the second limit post, the lower surface of the barrel is provided with the second limit groove, and the second limit groove is in sliding connection with the second limit post. The cutting pick is clamped into the cutting pick seat through the clamping block, and when the cutting pick works, the cutting pick is damped and buffered through the compression spring, so that the loss of the cutting pick is reduced, and the second limiting groove and the second limiting column have a limiting effect.

Further, still include collar, second bolt and second thread groove, the collar is still installed to the surface of pick axial region, the second thread groove has been seted up on the collar, the second bolt is installed to the screw thread on the second thread groove. Can be with pick fixed mounting on the pick box through collar, second bolt and second thread groove, the installation is effectual, prevents the unstable structure.

Compared with the prior art, the utility model has the beneficial effects that: this scalability pick has following benefit:

1. this scalability pick has the flexible unit, and the telescopic link extension that has the locking structure through the flexible unit or decline drive pick axial region rise or decline, and pick axial region rise or decline drive pick head rise or decline to make the pick have scalability, and through first spacing groove and first spacing post structural stability good.

2. This scalability pick has the buffer unit, blocks into the pick seat through the fixture block of buffer unit on, at the pick during operation, carries out shock attenuation and buffering to it through pressure spring, reduces the loss of pick, and spacing post of second and second play limiting displacement.

3. This scalability pick structure reliability is high, and stability is good, and scalability is effectual, and shock attenuation and buffering are effectual to reduce the loss of pick, still conveniently change and maintain the tool bit.

Drawings

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

FIG. 2 is a schematic cross-sectional view of the present invention.

In the figure: the cutting tool comprises a base 1, a telescopic unit 2, a sliding block 21, a barrel 22, a first limiting groove 23, a first limiting column 24, a telescopic rod 25, a mounting groove 26, a cutting bit shaft portion 27, a sliding groove 28, a first bolt 29, a buffering unit 3, a second limiting groove 31, a second limiting column 32, a clamping block 33, a compression spring 34, a tool bit 4, a first thread groove 5, a cutting bit head 6, a mounting ring 7, a second bolt 8, a second thread groove 9 and a nut 10.

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.

Referring to fig. 1-2, the present embodiment provides a technical solution: a telescopic cutting pick comprises a base 1, a telescopic unit 2 and a buffer unit 3;

a threaded hole is formed in the side surface of the base 1; still include tool bit 4 and first thread groove 5, first thread groove 5 has been seted up to the upper surface of pick head 6, and the external screw thread has been seted up to the lower extreme surface of tool bit 4, and the external screw thread and the 5 threaded connection of first thread groove of tool bit 4. Thereby promote through the contact of tool bit 4 to ground and excavate efficiency, the external screw thread of tool bit 4 and first thread groove 5 conveniently carry out the screw thread to tool bit 4 and dismantle, change and maintain tool bit 4 again, prevent tool bit 4's wearing and tearing, cause work efficiency to reduce. The cutting pick shaft part 27 is characterized by further comprising a mounting ring 7, a second bolt 8 and a second thread groove 9, the mounting ring 7 is further mounted on the outer surface of the cutting pick shaft part 27, the second thread groove 9 is formed in the mounting ring 7, and the second bolt 8 is mounted on the second thread groove 9 in a threaded mode. Can be with pick fixed mounting on the pick holder through collar 7, second bolt 8 and second thread groove 9, the installation is effectual, prevents the unstable structure.

The telescopic unit 2: the cutting pick shaft part fixing device comprises a barrel 22, a first limiting groove 23, a first limiting column 24, a telescopic rod 25, a mounting groove 26 and a cutting pick shaft part 27, wherein a base 1 is mounted on the inner bottom surface of the barrel 22, the mounting groove 26 is formed in the upper surface of the base 1, the telescopic rod 25 is mounted on the mounting groove 26, the cutting pick shaft part 27 is fixedly mounted at the end part of the telescopic rod 25, the first limiting column 24 is further fixedly mounted on the upper surface of the base 1, the first limiting groove 23 is formed in the lower surface of the cutting pick shaft part 27, the first limiting groove 23 is connected with the first limiting column 24 in a sliding mode, and a cutting pick head part 6 is mounted at the upper end of the cutting pick shaft part 27; the telescopic rod 25 with the locking structure extends or descends to drive the cutting pick shaft part 27 to ascend or descend, the cutting pick shaft part 27 ascends or descends to drive the cutting pick head part 6 to ascend or descend, and therefore the cutting pick is made to have scalability, and structural stability is good through the first limiting groove 23 and the first limiting column 24. The telescopic unit 2 further comprises a sliding block 21 and a sliding groove 28, the sliding groove 28 is formed in the inner surface of the cylinder 22, the sliding block 21 is fixedly mounted on the outer surface of the cutting pick shaft portion 27, and the sliding block 21 is in sliding connection with the sliding groove 28. The slide block 21 and the slide groove 28 can improve the smoothness of the pick shaft portion 27 when it ascends or descends. The telescopic unit 2 further comprises a first bolt 29, a threaded hole is also formed in the outer surface of the cylinder 22, a nut 10 is mounted on the first bolt 29 in a threaded mode, and the cylinder 22 and the threaded hole of the base 1 are fixedly connected through the first bolt 29 and the nut 10 in a threaded mode. The barrel 22 and the base 1 are fixedly installed through the first bolt 29 and the nut 10, and the base 1 is prevented from falling off.

The buffer unit 3: which is mounted on the lower surface of the cylinder 22. Buffer unit 3 contains second spacing groove 31, second spacing post 32, fixture block 33 and pressure spring 34, and the lower surface mounting of barrel 22 has pressure spring 34, and fixture block 33 is installed through fixed bolster to pressure spring 34's lower extreme, and the upper surface mounting of fixture block 33 has second spacing post 32, and second spacing groove 31, second spacing groove 31 and the spacing post 32 sliding connection of second have been seted up to the lower surface of barrel 22. The cutting pick is clamped into the cutting pick seat through the clamping block 33, when the cutting pick works, the cutting pick is damped and buffered through the compression spring 34, the loss of the cutting pick is reduced, and the second limiting groove 31 and the second limiting column 32 play a limiting role.

The working principle of the telescopic cutting pick provided by the utility model is as follows: the telescopic rod 25 with the locking structure extends or descends to drive the cutting pick shaft part 27 to ascend or descend, the cutting pick shaft part 27 ascends or descends to drive the cutting pick head part 6 to ascend or descend, and therefore the cutting pick is made to have scalability, and structural stability is good through the first limiting groove 23 and the first limiting column 24. The slide block 21 and the slide groove 28 can improve the smoothness of the pick shaft portion 27 when it ascends or descends. The barrel 22 and the base 1 are fixedly installed through the first bolt 29 and the nut 10, and the base 1 is prevented from falling off. Thereby promote through the contact of tool bit 4 to ground and excavate efficiency, the external screw thread of tool bit 4 and first thread groove 5 conveniently carry out the screw thread to tool bit 4 and dismantle, change and maintain tool bit 4 again, prevent tool bit 4's wearing and tearing, cause work efficiency to reduce. The cutting pick is clamped into the cutting pick seat through the clamping block 33, when the cutting pick works, the cutting pick is damped and buffered through the compression spring 34, the loss of the cutting pick is reduced, and the second limiting groove 31 and the second limiting column 32 play a limiting role. Can be with pick fixed mounting on the pick holder through collar 7, second bolt 8 and second thread groove 9, the installation is effectual, prevents the unstable structure.

It should be noted that, in the present embodiment, the telescopic rod 25 is a telescopic rod with a locking structure.

The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by using the contents of the present specification and the accompanying drawings, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A scalability pick, its characterized in that: comprises a base (1), a telescopic unit (2) and a buffer unit (3);

a threaded hole is formed in the side surface of the base (1);

telescoping unit (2): the cutting pick shaft part structure comprises a barrel body (22), a first limiting groove (23), a first limiting column (24), a telescopic rod (25), a mounting groove (26) and a cutting pick shaft part (27), wherein a base (1) is mounted on the bottom surface of the interior of the barrel body (22), the mounting groove (26) is formed in the upper surface of the base (1), the telescopic rod (25) is mounted on the mounting groove (26), the cutting pick shaft part (27) is fixedly mounted at the end part of the telescopic rod (25), the first limiting column (24) is further fixedly mounted on the upper surface of the base (1), the first limiting groove (23) is formed in the lower surface of the cutting pick shaft part (27), the first limiting groove (23) is connected with the first limiting column (24) in a sliding mode, and the cutting pick head part (6) is mounted at the upper end of the cutting pick shaft part (27);

buffer unit (3): which is mounted on the lower surface of the cylinder (22).

2. A retractable pick according to claim 1, wherein: the telescopic unit (2) further comprises a sliding block (21) and a sliding groove (28), the sliding groove (28) is formed in the inner surface of the cylinder body (22), the sliding block (21) is fixedly mounted on the outer surface of the cutting pick shaft portion (27), and the sliding block (21) is connected with the sliding groove (28) in a sliding mode.

3. A retractable pick according to claim 2, wherein: the telescopic unit (2) further comprises a first bolt (29), a threaded hole is formed in the outer surface of the cylinder body (22), a nut (10) is installed on the first bolt (29) in a threaded mode, and the cylinder body (22) and the threaded hole of the base (1) are fixedly connected through the first bolt (29) and the nut (10) in a threaded mode.

4. A retractable pick according to claim 1, wherein: the cutting pick is characterized by further comprising a cutter head (4) and a first thread groove (5), wherein the first thread groove (5) is formed in the upper surface of the cutting pick head (6), an external thread is formed in the outer surface of the lower end of the cutter head (4), and the external thread of the cutter head (4) is in threaded connection with the first thread groove (5).

5. A retractable pick according to claim 1, wherein: buffer unit (3) contain second spacing groove (31), second spacing post (32), fixture block (33) and pressure spring (34), the lower surface mounting of barrel (22) has pressure spring (34), fixture block (33) are installed through the fixed bolster to the lower extreme of pressure spring (34), the last surface mounting of fixture block (33) has second spacing post (32), second spacing groove (31) have been seted up to the lower surface of barrel (22), second spacing groove (31) and second spacing post (32) sliding connection.

6. A retractable pick according to claim 1, wherein: still include collar (7), second bolt (8) and second thread groove (9), collar (7) are still installed to the surface of pick axial region (27), second thread groove (9) have been seted up on collar (7), second bolt (8) are installed to the screw thread on second thread groove (9).