Cutting pick

Abstract

The utility model relates to the technical field of cutting picks, in particular to a cutting pick, which comprises a pick handle, the alloy tooth head is detachably arranged on the tooth handle; the two limiting blocks are oppositely arranged on the tooth handle; the limiting block abuts against the alloy tooth head and the tooth handle and is used for fixing the alloy tooth head, and the limiting block is installed on the tooth handle through a bolt. According to the utility model, the alloy tooth head is convenient to fix through the arranged limiting block, and meanwhile, the limiting block is detachable through the arranged bolt, so that the alloy tooth head is convenient to replace and maintain.

Description

Technical Field

[0001] The utility model relates to the technical field of pick teeth, in particular to a pick tooth. Background Art

[0002] Picks are divided into coal mining machine picks and tunneling machine picks, and are parts of mining and tunneling machines.

[0003] At present, the carbide heads on most picks are fixed to the pick handles by brazing. This connection method has the problem that if the carbide head is damaged, it needs to be connected to the pick handle and replaced together, so a pick with a replaceable alloy head is needed. Utility Model Content

[0004] In order to achieve the above objectives, the present invention is implemented through the following technical solutions:

[0005] A pick, comprising:

[0006] Tooth handle;

[0007] An alloy tooth head, which is detachably arranged on the tooth handle;

[0008] There are two limit blocks, which are arranged oppositely on the tooth handle;

[0009] The limit block is in contact with the alloy tooth head and the tooth shank to fix the alloy tooth head, and the limit block is installed on the tooth shank through bolts.

[0010] Preferably, the limiting block comprises a semicircular body, and a first clamping block and a second clamping block are arranged inside the semicircular body.

[0011] Preferably, the tooth handle comprises a handle body, and a second clamping groove is provided in an annular shape on the upper end of the handle body, and the second clamping block abuts against the handle body through the second clamping groove.

[0012] Preferably, the alloy tooth head comprises a cutter head, a clamping slot 1 is arranged on the outside of the cutter head, and the clamping block 1 is connected to the cutter head via the clamping slot 1.

[0013] Preferably, a mounting groove is provided at the upper end of the handle body, a tooth column is fixedly provided inside the mounting groove, and a tooth groove is provided on the bottom surface of the cutter head, and the cutter head is connected to the tooth column via the tooth groove.

[0014] Preferably, the outer surface of the semicircular body is built-up with a wear-resistant layer.

[0015] Preferably, the wear-resistant layer is made of cemented carbide.

[0016] The utility model provides a pick, which has the following beneficial effects:

[0017] 1. In the present invention, the limit block is provided to facilitate the fixation of the alloy tooth head, and the limit block is detachable through the provided bolts, thereby facilitating the replacement of the alloy tooth head and facilitating maintenance.

[0018] 2. In the present invention, the tooth groove is connected with the tooth column to achieve the limit of the cutter head, so as to prevent the cutter head from rotating during use and affecting the use effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of a pick in the utility model;

[0020] Figure 2 It is a schematic diagram of the explosion structure of a pick in the utility model;

[0021] Figure 3 This is a schematic diagram of the internal structure of the tooth handle in the utility model;

[0022] Figure 4 It is a schematic diagram of the cross-sectional structure of the tooth handle in the utility model;

[0023] Figure 5 It is a structural schematic diagram of the limit block in the utility model;

[0024] Figure 6 It is a structural schematic diagram of the alloy tooth head in the utility model.

[0025] In the figure: 10-limiting block, 11-semicircular body, 12-wear-resistant layer, 13-block 1, 14-block 2, 20-alloy tooth head, 21-cutter head, 22-tooth groove, 23-slot 1, 30-tooth shank, 31-tooth column, 32-shank body, 33-installing groove, 34-slot 2, 40-bolt. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0027] See also Figure 1-6 The utility model provides a technical solution:

[0028] A pick, comprising:

[0029] Tooth handle 30;

[0030] An alloy tooth head 20 detachably disposed on the tooth shank 30 and two limit blocks 10 oppositely disposed on the tooth shank 30;

[0031] The limit block 10 abuts against the alloy tooth head 20 and the tooth shank 30 to fix the alloy tooth head 20 , and the limit block 10 is installed on the tooth shank 30 by means of bolts 40 .

[0032] In the above, the limit block 10 is provided to facilitate the fixation of the alloy tooth head 20, and the limit block 10 is detachable through the provided bolts 40, thereby facilitating the replacement of the alloy tooth head 20 and facilitating maintenance.

[0033] Specifically, Figure 5 As shown in: the limit block 10 includes a semicircular body 11, and a clamping block 13 and a clamping block 2 14 are arranged inside the semicircular body 11. The clamping block 13 and the clamping block 2 14 are used to realize the abutment of the limit block 10 with the shank 30 and the alloy tooth head 20, thereby realizing the fixing of the alloy tooth head 20 on the shank 30.

[0034] Specifically, Figure 3 As shown in the figure: the tooth handle 30 includes a handle body 32, and a second clamping groove 34 is annularly arranged on the upper end of the handle body 32. The second clamping block 14 abuts against the handle body 32 through the second clamping groove 34 to achieve the connection between the semicircular body 11 and the handle body 32.

[0035] Specifically, Figure 4 As shown in the figure: the alloy tooth head 20 includes a cutter head 21, and a slot 23 is arranged on the outside of the cutter head 21. The clamping block 13 is connected to the cutter head 21 through the slot 23 to realize the connection between the semicircular body 11 and the cutter head 21.

[0036] Specifically, Figure 4 As shown in the figure: the upper end of the handle body 32 is provided with a mounting groove 33, the interior of the mounting groove 33 is fixedly provided with a tooth column 31, and a tooth groove 22 is opened on the bottom surface of the cutter head 21, and the cutter head 21 is connected to the tooth column 31 through the tooth groove 22, which is used to achieve the limit of the cutter head 21 to prevent the cutter head 21 from rotating during use and affecting the use effect.

[0037] Specifically, Figure 5 As shown in the figure: the outer surface of the semicircular body 11 is clad with a wear-resistant layer 12, and the wear-resistant layer 12 is made of hard alloy, and the hard alloy exists in the form of welding rods or welding wires. The hard alloy material is gradually heated to a molten state through cladding equipment, and the cladding material is evenly coated on the surface of the pick body, thereby improving the wear resistance and service life of the outer surface of the semicircular body 11.

[0038] Working principle: When in use, the connection between the alloy tooth head 20 and the tooth shank 30 is achieved through the set block 13 and the block 2 14, and the limit block 10 is detachable through the set bolt 40. When the alloy tooth head 20 needs to be replaced, it is only necessary to remove the bolt 40 and the limit block to replace the alloy tooth head 20, which is convenient for maintenance.

[0039] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A pick, characterized in that: include: A tooth handle (30); An alloy tooth head (20) which is detachably arranged on the tooth handle (30); There are two limit blocks (10) which are arranged opposite to each other on the tooth handle (30); The limit block (10) is in contact with the alloy tooth head (20) and the tooth shank (30) to fix the alloy tooth head (20), and the limit block (10) is installed on the tooth shank (30) by means of bolts (40); the limit block (10) comprises a semicircular body (11), and a first clamping block (13) and a second clamping block (14) are arranged inside the semicircular body (11); the tooth shank (30) comprises a shank body (32), and a second clamping groove (34) is arranged in an annular shape at the upper end of the shank body (32), and the second clamping block (14) is in contact with the shank body (32) via the second clamping groove (34); the alloy tooth head (20) comprises a cutter head (21), and a first clamping groove (23) is arranged outside the cutter head (21), and the first clamping block (13) is connected to the cutter head (21) via the first clamping groove (23).

2. A pick according to claim 1, characterized in that: The upper end of the handle body (32) is provided with a mounting groove (33), a tooth column (31) is fixedly arranged inside the mounting groove (33), and a tooth groove (22) is provided on the bottom surface of the cutter head (21), and the cutter head (21) is connected to the tooth column (31) via the tooth groove (22).

3. A pick according to claim 1, characterized in that: The outer surface of the semicircular body (11) is built-up with a wear-resistant layer (12).

4. A pick according to claim 3, characterized in that: The wear-resistant layer (12) is made of hard alloy.

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