CN-121976799-A - Universal cutting pick assembly

Abstract

The invention belongs to the technical field of mining design, and discloses a universal cutting pick assembly, which comprises an inner hole and a first clamping groove, wherein an inner hole and a first clamping groove are formed in a stress surface of a tooth holder, a universal tooth sleeve comprises a sleeve and a sleeve connecting piece arranged at the top of the sleeve, the sleeve is matched with the inner hole, a cutting pick mounting hole is formed in the sleeve, the cutting pick mounting hole comprises a large inner diameter section and a small inner diameter section which are communicated sequentially, a tooth sleeve buckle matched with the first clamping groove is arranged on one side of the sleeve connecting piece, a second clamping groove which is symmetrically arranged is formed in the top of the sleeve connecting piece, the cutting pick comprises a cutter-shaped cutting pick and a pick-shaped cutting pick, a tooth handle of the cutter-shaped cutting pick and a tooth handle of the pick-shaped cutting pick are matched with the cutting pick mounting hole, and a cutting pick buckle matched with the second clamping groove is arranged at the junction of a cutting pick head and the tooth handle corresponding to the cutter-shaped cutting pick. According to the technical scheme, two types of cutting picks can be considered at the same time, so that a mining party can select the type of the cutting pick according to the change of geological conditions, and the production efficiency and the economic benefit are improved.

Inventors

• LIU DONGYU
• JI PENG
• HUANG QIULAI
• MA ZIYAO
• JIANG NING
• CAO YANG
• ZHU HONG
• TAO RONG
• LI SONGMEI

Assignees

• 天地上海采掘装备科技有限公司
• 中煤科工集团上海有限公司

Dates

Publication Date

20260505

Application Date

20260309

Claims (6)

1. 1. A universal pick assembly, comprising: the universal tooth holder (1), an inner hole (11) and a first clamping groove (13) are formed in the stress surface of the universal tooth holder (1); The universal tooth sleeve (2), the universal tooth sleeve (2) comprises a sleeve and a sleeve connecting piece arranged at the top of the sleeve, the sleeve is matched with the inner hole (11), a cutting pick mounting hole is formed in the sleeve, the cutting pick mounting hole comprises a large inner diameter section and a small inner diameter section which are communicated sequentially, the small inner diameter section is positioned below the large inner diameter section, a tooth sleeve buckle matched with the first clamping groove (13) is arranged at one side of the sleeve connecting piece, and a second clamping groove (24) which is symmetrically arranged is formed in the top of the sleeve connecting piece; Pick (3), pick (3) include sword shape pick and pick type pick, sword shape pick with pick handle (33) of pick type pick with pick mounting hole cooperation sets up, pick (3) head that sword shape pick corresponds and pick handle (33) juncture be provided with pick buckle (34) of second draw-in groove (24) cooperation setting.
2. 2. A universal pick assembly according to claim 1, wherein the universal holder (1) is further provided with a water hole (14) and a water passage groove (15), and the water passage groove (15) is communicated with the water passage hole of the drum.
3. 3. A universal pick assembly as claimed in claim 1, wherein the large inner diameter section communicates with the small inner diameter section by a 45 ° step.
4. 4. A universal pick assembly according to claim 1, wherein the inner side wall of the small inner diameter section is provided with an inner groove (25), the inner groove (25) being snap-fit with a shank (33) of each pick (3).
5. 5. A universal pick assembly according to claim 1, wherein the pick heads of the tool pick and pick (3) are fixedly mounted with an alloy head (31).
6. 6. A universal pick assembly according to claim 5, characterized in that a drain edge (32) is provided below the alloy head (31) of the knife pick.

Description

Universal cutting pick assembly Technical Field The invention belongs to the technical field of mining design, and particularly relates to a universal cutting pick assembly. Background Cutting pick coal breaking is the most important and fundamental process in coal mining, wherein a knife-shaped cutting pick is the most mature cutting tool used in the earliest and technology, and a pick-shaped cutting pick is the most widely used cutting pick at present. The existing pick-shaped cutting pick has better wear resistance and wider application in coal exploitation, but the cut coal blocks are generally smaller, and the block coal rate is lower. While the wear resistance of the knife-shaped cutting pick is inferior to that of the pick-shaped cutting pick, the lump coal rate in the mining process can be remarkably improved. Because the two types of cutting picks have different structures, no universal tooth holder exists at present, and the cutter-shaped cutting pick cannot be installed on the spiral drum of the coal mining machine provided with the pick-shaped cutting pick. Therefore, a pick-shaped cutting pick and a general cutting pick assembly of a knife-shaped cutting pick are required to be developed, so that a mining party can select corresponding cutting pick types according to geological conditions, and economic benefit is improved. Disclosure of Invention It is an object of the present invention to provide a universal pick assembly that solves the problems with the prior art described above. To achieve the above object, the present invention provides a universal pick assembly comprising: the universal tooth holder is provided with an inner hole and a first clamping groove at the stress surface; The universal tooth sleeve comprises a sleeve and a sleeve connecting piece arranged at the top of the sleeve, wherein the sleeve is matched with the inner hole, a cutting pick mounting hole is formed in the sleeve, and the cutting pick mounting hole comprises a large-inner-diameter section and a small-inner-diameter section which are sequentially communicated; The cutting pick comprises a knife-shaped cutting pick and a pick-shaped cutting pick, wherein the knife-shaped cutting pick and a tooth handle of the pick-shaped cutting pick are matched with the cutting pick mounting hole, and a cutting pick buckle matched with the second clamping groove is arranged at the junction of the cutting pick head and the tooth handle corresponding to the knife-shaped cutting pick. Optionally, the universal tooth holder is further provided with a water hole and a water through groove, and the water through groove is communicated with the water through hole of the roller. Optionally, the large inner diameter section is communicated with the small inner diameter section through a 45-degree step. Optionally, an inner groove is formed on the inner side wall of the small inner diameter section, and the inner groove is matched with the protruding part of the tooth handle of each cutting tooth. Optionally, the cutter-shaped cutting pick and the cutting pick head of the pick-shaped cutting pick are fixedly provided with an alloy head. Optionally, a drain blade is disposed below the alloy head of the knife-shaped cutting pick. The invention has the technical effects that: The universal cutting pick assembly provided by the invention is designed for the structural characteristics and the working principle of the cutter-shaped cutting pick and the pick-shaped cutting pick, and the universal tooth holder and the universal tooth sleeve capable of simultaneously installing the cutter-shaped cutting pick and the pick-shaped cutting pick are designed, so that a mining party can pertinently select the cutting pick type according to the change of geological conditions, the lump coal rate is improved, and the economic benefit is increased. Drawings In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art. The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the application. In the drawings: FIG. 1 is a schematic view of a pick assembly for pick and pick in accordance with an embodiment of the present invention; FIG. 2 is a schematic diagram of a universal toothholder according to an embodiment of the present invention; FIG. 3 is a schematic view of a general gear sleeve according to an embodiment of the present invention; Fig. 4 is a schematic view of a pick and a cu