CN218467609U - Pickaxe-shaped cutting pick - Google Patents

Abstract

The utility model relates to the technical field of coal mine underground excavation equipment, in particular to a pickaxe-shaped cutting pick, which comprises more than two single cutting picks and a connecting component for connecting the adjacent single cutting picks together; the single cutting pick comprises a cutting pick body and a cutting pick head fixed at the center of the end part of the cutting pick body, and two opposite sides of the cutting pick body are respectively provided with a threaded blind hole; the connecting assembly comprises a first connecting piece, a second connecting piece and a locking piece, wherein the first connecting piece is used for being connected with a threaded blind hole formed in one cutting pick body, the second connecting piece is used for being connected with a threaded blind hole formed in the other cutting pick body, and the locking piece is used for locking the first connecting piece and the second connecting piece. The utility model discloses the using-way is nimble changeable, can adjust different angles in order to adapt to different operating mode conditions, has improved excavation efficiency to a certain extent, and then reaches better excavation effect.

Description

Pickaxe-shaped cutting pick

Technical Field

The utility model relates to a colliery is mining equipment technical field in the pit, in particular to pickaxe type pick.

Background

The pick-shaped cutting pick is a cutting tool and is widely applied to various mining mechanical equipment such as coal mining machines, heading machines and the like. A conventional pick-type cutting pick has a pick body with a pick head at one end and a block at the other end. The toothholders are typically cylindrical mounting surfaces that will be welded to the shearer drum or the roadheader at pre-designed angles.

However, the angle of the manuscript cutting pick installed in this way is fixed, and the manuscript cutting pick is severely worn by force in the working process, so that the manuscript cutting pick becomes a main consumable part. As the original sediment and the carbonization metamorphic degree are different in the formation process of the coal rock body and other mineral substances, the coal rock layers with different joints and bedding trends are formed, and the physical and mechanical properties in all directions are greatly different. The manuscript cutting pick with a fixed angle cannot meet the requirement.

SUMMERY OF THE UTILITY MODEL

In view of prior art's defect, the utility model provides a pick type pick, its using-way is nimble changeable, can adjust different angles in order to adapt to different operating mode conditions, has improved excavation efficiency to a certain extent, and then reaches better excavation effect.

In order to achieve the purpose, the technical scheme provided by the utility model is a pickaxe-shaped cutting pick, which comprises more than two single cutting picks and a connecting component for connecting the adjacent single cutting picks together; the single cutting pick comprises a cutting pick body and a cutting pick head fixed at the center of the end part of the cutting pick body, and two opposite sides of the cutting pick body are respectively provided with a threaded blind hole; the connecting assembly comprises a first connecting piece, a second connecting piece and a locking piece, wherein the first connecting piece is used for being connected with a threaded blind hole formed in one cutting pick body, the second connecting piece is used for being connected with a threaded blind hole formed in the other cutting pick body, the locking piece is locked by the first connecting piece and the second connecting piece, and when the locking piece is not locked, the first connecting piece and the second connecting piece can rotate relatively.

Further, the first connecting piece is provided with a first end part in threaded connection with the threaded blind hole and a second end part in rotary connection with the second connecting piece; the second connector has a third end threadedly connected to the threaded blind bore.

Further, the first connecting piece is connected with the second connecting piece through a bearing.

Further, the first connecting piece is provided with a first end part in threaded connection with the threaded blind hole and a second end part in plug connection with the second connecting piece, and the second end part is of a polygonal column structure; the second connector has a third end threadedly connected to the threaded blind bore.

Further, the second end is a hexagonal prism, and a hexagonal prism blind hole matched with the hexagonal prism is formed in one end face of the second connecting piece.

Furthermore, the first connecting piece penetrates through the first positioning through hole along the radial direction, a plurality of second positioning through holes are formed in positions, corresponding to the first positioning through holes, of the second connecting piece, and the locking piece comprises locking bolts which are used for penetrating through the first positioning through holes and the second positioning through holes and locking the first connecting piece and the second connecting piece.

Further, the second connecting piece is provided with a fourth end portion, when two adjacent single cutting picks are fixed through the connecting assembly, the fourth end portion is located between the two adjacent single cutting picks, and two sides of the fourth end portion are fixedly connected with the two single cutting picks through the surfacing layer respectively.

Further, the single pick is provided with two.

Further, the pick head is threadedly connected to the pick body.

The utility model has the advantages that: above-mentioned pick type pick sets up the screw thread blind hole respectively through the both sides of carrying on the back mutually at the pick body to adopt coupling assembling can dismantle two monomer picks and connect, in order realizing both can use as pair pick type pick, can only leave a monomer pick and use again when the working condition need not pair pick type pick again, so the using-way is nimble changeable. In addition, according to the excavation demand, retaining member can be loosened, the relative position between first connecting piece and the second connecting piece is adjusted, different angles are adjusted to adapt to different working conditions, the excavation efficiency is improved to a certain extent, and a better excavation effect is achieved.

Drawings

Fig. 1 is a schematic structural view of a pick-type cutting pick according to an embodiment of the present invention;

fig. 2 is a schematic structural view of a single pick in an embodiment of the present invention;

fig. 3 is a partial cross-sectional view of a pick-type pick in an embodiment of the present invention;

fig. 4 is a partially enlarged schematic view of the welding positions of two individual picks of the pick-type pick in an embodiment of the present invention;

fig. 5 is a schematic structural view of two individual picks of the pick-type pick in an embodiment of the present invention after adjustment;

fig. 6 is a schematic structural view illustrating two single picks of the pick-type pick of the present invention adjusted to be 90 ° to each other;

FIG. 7 is a left side elevational view of the pick-type pick of FIG. 6;

figure 8 is a partial cross-sectional view of a pick-type pick in another embodiment of the present invention;

fig. 9 is a schematic structural view of a pick-type pick according to another embodiment of the present invention.

In the figure: 10. a pickaxe-shaped cutting tooth is arranged on the cutting tooth,

100. 100a, 100b, single picks, 110a, 110b, pick body, 111, blind threaded bore, 120a, 120b, pick head, 130a, 130b, block,

200. a connecting assembly, 210, a first connecting piece, 211, a first end part, 212, a second end part, 213, a first positioning through hole, 220, a second connecting piece, 221, a third end part, 222, a second positioning through hole, 223, a fourth end part, 230, a locking piece, 240 and a bearing,

300. and (7) overlaying the welding layer.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be embodied in many other forms different from those described herein and similar modifications may be made by those skilled in the art without departing from the spirit and scope of the invention and, therefore, the invention is not to be limited to the specific embodiments disclosed below.

Referring to fig. 1, an embodiment of the present invention provides a pick-shaped cutting pick 10 for use in mining machinery such as various coal mining machines and roadheader. The pick 10 includes more than two single picks 100 and a connecting assembly 200 connecting adjacent single picks 100 together.

Referring to fig. 2, the one-piece pick 100 includes a pick body 110, a pick head 120 fixed at a central location of an end of the pick body 110, and a block 130 disposed away from an end of the pick head 120. Wherein the pick head 120 acts directly on the coal rock mass and the tooth holder 130 is a cylindrical mounting surface that can be welded to a shearer drum or a heading machine cutter head. The fixing manner of the pick head 120 and the pick body 110 is not limited, and a welding fixing manner is generally adopted, but if the disassembly and replacement requirements exist, the pick head 120 and the pick body 110 can be fixed in a threaded connection manner, that is, a threaded hole is formed in the center of the end part of the pick body 110, and the pick head 120 with the external thread is screwed into the threaded hole.

Referring to fig. 3, which shows a cross-sectional structure of the connecting assembly 200, two opposite sides of the pick bodies 110a and 110b are respectively provided with a blind threaded hole 111; the connecting assembly 200 includes a first connector 210 for engaging a blind threaded bore provided in a pick body 110a, a second connector 220 for engaging a blind threaded bore provided in another pick body 110b, and a locking member 230 for locking the first connector 210 to the second connector 220, the locking member 230 not being shown in figure 1, with reference to figure 3, the first connector 210 and the second connector 220 being able to rotate relative to one another when the locking member 230 is unlocked.

Above-mentioned pick type pick 10 is through seting up threaded blind hole 111 respectively in the both sides of the back of the body of pick 110 mutually to adopt coupling assembling 200 to dismantle two monomer picks 100 and connect, in order to realize both can using as pair pick type pick, can only leave a monomer pick 100 and use when the working condition need not pair pick type pick again, so the using-way is nimble changeable. In addition, the locking member 230 can be loosened according to the mining requirement, the relative position between the first connecting member 210 and the second connecting member 220 can be adjusted, and different angles can be adjusted to adapt to different working conditions, so that the mining efficiency is improved to a certain extent, and a better mining effect is achieved.

Referring to fig. 3, in one embodiment, the first connecting member 210 has a first end 211 threadedly coupled to the blind threaded bore and a second end 212 rotatably coupled to the second connecting member 220; the second connector 220 has a third end 221 that is threadedly coupled to the threaded blind bore. In a specific arrangement, the first connecting member 210 is connected to the second connecting member 220 through a bearing 240 as an example. The bearing 240 can be a single-row deep groove ball bearing or a double-row deep groove ball bearing. The number of the bearings can be selected according to the requirement, and one bearing can be arranged as shown in fig. 3, or two single-row bearings can be sleeved on the part of the first connecting piece 210 extending into the second connecting piece 220 and sleeved on the parts close to the first connecting piece 210 and the second connecting piece 220 respectively. So that the stability of mutual rotation between the two can be optimized, and the service life of the connecting component 200 is further prolonged.

On the basis of the above embodiment, referring to fig. 3, the first connecting member 210 is radially provided with a first positioning through hole 213 in a penetrating manner, the second connecting member 220 is provided with a plurality of second positioning through holes 222 at positions corresponding to the first positioning through holes 213, and the locking member 230 includes a locking bolt for penetrating the first positioning through hole 213 and the second positioning through holes 222 and locking the first connecting member 210 and the second connecting member 220.

Taking two individual picks 100, 100a and 100b as examples, as shown in fig. 1, in use, one of the individual picks 100a and 100b is welded to a shearer drum or a heading machine cutter head. For example, when the single cutting pick 100a, in particular the holder at the bottom of the cutting pick body a, needs to be adjusted, the locking piece 230 can be detached and then the cutting pick body 110b which is not fixed is rotated, the relative angle between the two is adjusted, and selective adjustment is performed according to specific working conditions. If the adjustment of the cutting angle of the rear pick body 110a is an enhancement of the cutting angle of the pick body 110b, the locking member 230 is secured for use as a twin pick type pick. If the cutting pick body 110a is adjusted so that the cutting angle does not have a gain in the cutting angle of the pick body 110b, and losses are produced in return, in some embodiments the pick head is threadedly connected to the pick body. At this point, the head 120a, which is fixed to the pick body 110a, can be removed and the head 120b used alone as a single point pick. If it is determined that the cutting angle of the welded single pick 100a meets the requirements and no subsequent angle adjustment is required, the single pick 100b and the connection assembly 200 can be removed and only the head 120a used as a single-tipped pick. If the adjusted cutting angle of the single cutting pick 100b meets the requirement and the subsequent requirement of no adjustment angle is met, the tooth head 120a of the single cutting pick 100a can be detached and only the tooth head 120b can be used as a pick-type cutting pick of the single tooth head. The pick-type cutting pick has flexible and various use modes, and can adjust the single cutting pick 100 on one side when the angle is required to be adjusted so as to improve the excavating effect. When the angle adjustment is not needed, the use function of the common pickaxe-shaped cutting pick can be recovered.

Referring to fig. 4, in an embodiment, further, the second connecting part 220 has a fourth end portion 223, when two adjacent single picks 100, 100a and 100b are fixed by the connecting assembly 200, the fourth end portion 223 is located between the two adjacent single picks 100, and two sides of the fourth end portion 223 are fixedly connected with the two single picks 100, 100a and 100b respectively through the overlaying layer 300.

It should be noted that if the strength of the coal rock mass is too high, after the adjustment to a satisfactory angle, the second connecting piece 220 is close to two single cutting picks 100, the single cutting pick 100a and the single cutting pick 100b, and then two end faces are subjected to surfacing treatment to enhance the fixing reliability of the two single cutting picks, but once the two single cutting picks are fixed, the angle cannot be adjusted again.

Referring to fig. 8, in another embodiment, the first connecting member 210 has a first end 211 screwed with the threaded blind hole and a second end 212 inserted with the second connecting member 220, the second end 212 is configured as a polygonal prism structure; the second connector 220 has a third end 221 that is threadedly coupled to the threaded blind bore. In cooperation with the second end 212, as an example, the second end is a hexagonal prism, and a blind hole of the hexagonal prism is formed on an end surface of the second connecting member 220. The mode that adopts hexagonal prism matched with of this kind can play the effect that prevents to rotate in the course of the work, has further improved the stability of device.

On the basis of the above embodiment, referring to fig. 8, the first connecting member 210 is radially provided with a first positioning through hole 213 in a penetrating manner, the second connecting member 220 is provided with a plurality of second positioning through holes 222 at positions corresponding to the first positioning through holes 213, and the locking member 230 includes a locking bolt for penetrating the first positioning through hole 213 and the second positioning through holes 222 and locking the first connecting member 210 and the second connecting member 220.

For more clear explanation, referring to fig. 5-7, similar to the manner of the rotatable connection, the hexagonal prism can be matched in a manner that the relative angle between the two individual picks 100 can be adjusted again under the condition that the locking member 230 is detached, only the matching manner of the hexagonal prism can be adjusted in six directions, the rotatable connection manner can be provided with a plurality of second positioning through holes 222 along the circumferential direction according to requirements, and the arrangement number of the second positioning through holes 222 determines the range of the adjustment angle.

Referring to fig. 9, in one embodiment, the single pick 100 is provided with three, namely a single pick 100a, a single pick 100b, and a single pick 100c. When the cutting device is used, only one single cutting tooth needs to be welded, and the angles of the rest two single cutting teeth can be adjusted. If necessary, the three single cutting teeth can be fixed through overlaying after the angle is adjusted, so that the strength of the pickaxe-shaped cutting teeth is further improved, and the mining effect is further improved. In order to prevent interference between adjacent pick-type picks, the number of individual picks 100 is not necessarily too large, and 2 or 3 is preferable.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and for simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless explicitly defined otherwise.

In the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrated; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "on" or "under" a second feature may be directly contacting the second feature or the first and second features may be indirectly contacting the second feature through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment.

Claims (9)

1. A pickaxe-shaped cutting pick is characterized in that: the cutting device comprises more than two single cutting picks and a connecting assembly for connecting the adjacent single cutting picks together;

the single cutting pick comprises a cutting pick body and a cutting pick head fixed at the center of the end part of the cutting pick body, and two opposite sides of the cutting pick body are respectively provided with a threaded blind hole;

the connecting assembly comprises a first connecting piece, a second connecting piece and a locking piece, wherein the first connecting piece is used for being connected with a threaded blind hole formed in one cutting pick body, the second connecting piece is used for being connected with a threaded blind hole formed in the other cutting pick body, the locking piece is locked by the first connecting piece and the second connecting piece, and when the locking piece is not locked, the first connecting piece and the second connecting piece can rotate relatively.

2. A pick-type cutting pick according to claim 1, wherein: the first connecting piece is provided with a first end part in threaded connection with the threaded blind hole and a second end part in rotary connection with the second connecting piece; the second connector has a third end threadedly connected to the threaded blind bore.

3. A pick-type cutting pick according to claim 2, wherein: the first connecting piece is connected with the second connecting piece through a bearing.

4. A pick-type pick of claim 1, wherein: the first connecting piece is provided with a first end part in threaded connection with the threaded blind hole and a second end part in plug connection with the second connecting piece, and the second end part is of a polygonal column structure; the second connector has a third end threadedly connected to the threaded blind bore.

5. A pick-type pick of claim 4, wherein: the second end is a hexagonal prism, and a hexagonal prism blind hole matched with the hexagonal prism is formed in one end face of the second connecting piece.

6. A pick-type pick according to any one of claims 2 to 5, wherein: the first connecting piece penetrates through the first positioning through hole along the radial direction, a plurality of second positioning through holes are formed in positions, corresponding to the first positioning through holes, of the second connecting piece, and the locking piece comprises locking bolts which are used for penetrating through the first positioning through holes and the second positioning through holes and locking the first connecting piece and the second connecting piece.

7. A pick-type pick according to any one of claims 2 to 5, wherein: the second connecting piece is provided with a fourth end portion, when two adjacent single cutting teeth are fixed through the connecting assembly, the fourth end portion is located between the two adjacent single cutting teeth, and two sides of the fourth end portion are fixedly connected with the two single cutting teeth through overlaying layers respectively.

8. A pick of any one of claims 2 to 5, wherein: the single cutting pick is provided with two single cutting picks.

9. A pick-type pick according to any one of claims 2 to 5, wherein: the pick head is threadedly connected to the pick body.

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