CN218598202U - Cutting pick assembly and mining machine with same - Google Patents

Abstract

The utility model provides a pick subassembly and have its mining machine. The pick assembly includes: the cutting pick comprises a cutting pick body, a cutting pick body and a cutting pick body, wherein the cutting pick body comprises a pick head, a pick shoulder and a pick handle, the pick head, the pick shoulder and the pick handle are sequentially and coaxially connected along the axial direction of the cutting pick body, and the outer diameter of the pick shoulder is larger than that of the pick head and the pick handle; the tooth handle is arranged in the mounting seat, and the tooth shoulder is exposed out of the mounting seat; and the gasket is sleeved on the outer side of the pick handle, and the gasket is clamped between the pick shoulder and the mounting seat in the axial direction of the pick body. Thus, the gasket can bear impact and friction caused by partial coal, rocks and the like, and abrasion of the mounting seat is reduced. The gasket of pressing from both sides between locating mount pad and the tooth shoulder can be together changed along with the pick body, and the dismantlement degree of difficulty is low, guarantees cutting assembly's cutting efficiency. The setting of gasket can also prevent materials such as rubble from entering into the inside of mount pad, reduces the inside wearing and tearing of mount pad to guarantee that the rotation of pick body in the mount pad is not influenced.

Description

Cutting pick assembly and mining machine with same

Technical Field

The utility model relates to a mining tools technical field specifically, relates to a pick subassembly and have its mining machine.

Background

In the modern coal mine collection industry, mining machines are generally adopted for mining. Mining machines with large cutting power are more widely used in the increasingly high-yield and high-efficiency mining situation of mining machines. Accordingly, the cutting diameter and cutting power of the drum of the mining machine is also increasing, which makes pick assemblies on the drum more susceptible to wear.

Typically, a pick assembly includes a mount and a pick body. The cutting pick comprises a mounting seat, a drum, a cutting pick body and a cutting pick body, wherein the mounting seat is fixedly connected with the drum, the cutting pick body is detachably connected with the mounting seat, and the cutting efficiency of the mining machine is generally ensured by replacing the cutting pick body. However, in the use process, along with the loss of the cutting pick body, the mounting seat can also be abraded to a certain extent, and the service life of the mounting seat is influenced. And materials such as broken stones generated during cutting easily enter the mounting seat through a gap between the mounting seat and the cutting pick body, so that the rotation of the cutting pick body is influenced, and the cutting efficiency is reduced.

SUMMERY OF THE UTILITY MODEL

In order to at least partially solve the problems occurring in the prior art, according to an aspect of the present invention, there is provided a pick assembly. The pick assembly includes: the cutting pick comprises a cutting pick body, a cutting pick body and a cutting pick body, wherein the cutting pick body comprises a pick head, a pick shoulder and a pick handle, the pick head, the pick shoulder and the pick handle are sequentially and coaxially connected along the axial direction of the cutting pick body, and the outer diameter of the pick shoulder is larger than that of the pick head and the pick handle; the tooth handle is arranged in the mounting seat, and the tooth shoulder is exposed out of the mounting seat; and the gasket is sleeved on the outer side of the tooth handle and clamped between the tooth shoulder and the mounting seat in the axial direction of the cutting pick body.

Illustratively, a mounting through hole is formed in the mounting seat, the tooth shank penetrates through the mounting through hole, the aperture of the mounting through hole is smaller than the outer diameter of the tooth shoulder, and the aperture of the mounting through hole is smaller than the outer diameter of the gasket.

Illustratively, the projection of the shoulder on the plane of the shim is within the shim, in the axial direction of the pick body.

Illustratively, a circular through hole is formed in the gasket, and the tooth shank penetrates through the circular through hole to be installed in the installation seat.

Exemplarily, still be provided with spacing protruding muscle on the gasket, spacing protruding muscle extends the setting from the edge of circular through-hole towards the direction of mount pad, and at least partial structure of spacing protruding muscle stretches into in the installation through-hole to the mount pad.

Illustratively, the spacing ribs are annular.

Illustratively, the length of the spacing ribs protruding out of the shim in the axial direction of the pick body increases gradually along the radially inward direction of the circular through hole.

Illustratively, the outer circumference of the gasket is circular, or alternatively, the outer circumference of the gasket is a regular polygon.

Illustratively, the mount is a one-piece member; or, the mount pad includes toothholder and tooth cover, and the rear end of tooth cover inserts to the toothholder in, is provided with the installation through-hole in the tooth cover, and the tooth handle is installed to the installation through-hole in, and the gasket is located between the front end and the tooth shoulder of tooth cover.

In this scheme, set up the gasket between the tooth shoulder of pick body and mount pad, receive the wearing and tearing back at the pick body, the gasket can undertake impact and friction that part coal and rock etc. caused, reduces the wearing and tearing of mount pad effectively, reduces the frequency of changing the mount pad. The gasket of pressing from both sides between locating mount pad and the tooth shoulder can be for dismantling the connection, and the gasket can be together changed along with the pick body, and the dismantlement degree of difficulty is low, makes cutting assembly can guarantee cutting efficiency better. The setting of gasket can also prevent materials such as rubble from entering into the inside of mount pad, reduces the inside wearing and tearing of mount pad to guarantee that the rotation of pick body in the mount pad is not influenced. For a mounting seat which is subjected to wear (such as a surface which is worn to form a recess), the gasket can play a role in filling and correcting the worn position, and further guarantee the cutting efficiency.

According to another aspect of the present invention, there is also provided a mining machine. The mining machine includes a pick assembly as any one of above.

A series of concepts in a simplified form are introduced in the context of the present invention, which will be described in further detail in the detailed description section. The summary of the invention is not intended to define key features and essential features of the claimed subject matter, nor is it intended to be used as an aid in determining the scope of the claimed subject matter.

The advantages and features of the present invention are described in detail below with reference to the accompanying drawings.

Drawings

The following drawings of the present invention are used herein as part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles of the invention. In the drawings there is shown in the drawings,

fig. 1 is a schematic view of a pick assembly according to an exemplary embodiment of the present invention;

fig. 2 is a front view of a gasket according to an exemplary embodiment of the present invention;

fig. 3 is a side view of a gasket according to an exemplary embodiment of the present invention; and

fig. 4 is a side view of a gasket according to another exemplary embodiment of the present invention.

Wherein the figures include the following reference numerals:

100. a pick body; 110. a tooth head; 120. a tooth shoulder; 130. a gear handle; 300. a gasket; 310. a circular through hole; 320. and limiting convex ribs.

Detailed Description

In the following description, numerous details are provided to provide a thorough understanding of the present invention. One skilled in the art, however, will understand that the following description illustrates only a preferred embodiment of the invention and that the invention may be practiced without one or more of these details. In addition, some technical features that are well known in the art are not described in detail in order to avoid obscuring the present invention.

In the following description, a detailed structure will be presented for a thorough understanding of the embodiments of the present invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art. The following detailed description of the preferred embodiments of the invention, however, the invention is capable of other embodiments in addition to those detailed.

The embodiment of the utility model provides an in provide a pick subassembly. The pick assembly may be applied to any mining machine or machine which requires cutting. Referring to fig. 1, a pick assembly may include a pick body 100 and a mount (not shown). The pick body may include a head 110, a shoulder 120 and a shank 130. The head 110, shoulder 120 and shank 130 may be connected sequentially and coaxially along the axial direction of the pick body 100. It will be understood that the axial direction of the pick body 100 refers to the direction of the central axis of rotation of the pick body 100 during use, the dotted line in figure 1 exemplarily identifying the axial direction of the pick body 100. With the outer diameter of the shoulder 120 being greater than the outer diameters of the head 110 and shank 130, the shank 130 fits into the mount and the shoulder 120 is exposed outside the mount. The pick assembly further includes a shim 300, the shim 300 being locatable on the outside of the shank 130, the shim 300 being sandwiched between the shoulder 120 and the mounting block in the axial direction of the pick body 100. Typically, the pick assembly may be mounted on a drum which is rotated to bring the pick assembly into constant contact with the coal seam, rock strata or the like to cut. Wherein, to ensure a stable connection of the pick assembly to the drum, the mounting block is typically fixedly connected to the drum, into which the pick body 100 is mounted. During cutting, the pick assembly is inevitably subjected to impact and friction, resulting in wear of the pick assembly. Therefore, in order to ensure the cutting effect, the worn cutting assembly needs to be replaced after being used for a period of time. Because the mounting block is fixedly connected with the drum, the difficulty of the disassembly process is high, so the pick body 100 is usually disassembled and replaced. The pick body 100, which is the portion that directly contacts the coal or rock, has a surface that gradually wears away, and after the wear reaches a certain level, the mount at the rear side of the pick body 100 also wears away, or even wears away to form a recess in the surface of the mount. Materials such as broken stones generated in the cutting process easily enter the mounting seat, abrasion is caused to the inside of the mounting seat, and the durability of the cutting pick assembly is affected. Also, material entering the mount can affect the rotation of the pick body 100, reducing cutting efficiency. In the scheme, the gasket 300 is arranged between the tooth shoulder 120 of the cutting pick body 100 and the mounting seat, and after the cutting pick body 100 is abraded, the gasket 300 can bear impact and friction caused by partial coal, rock and the like, so that abrasion of the mounting seat is effectively reduced, and the frequency of replacing the mounting seat is reduced. The gasket 300 clamped between the mounting seat and the tooth shoulder 120 can be detachably connected, the gasket 300 can be replaced together with the cutting pick body 100, the disassembling difficulty is low, and the cutting assembly can better guarantee the cutting efficiency. The gasket 300 can also prevent materials such as crushed stone from entering the inside of the mounting seat, reduce the wear inside the mounting seat and ensure that the rotation of the cutting pick body 100 in the mounting seat is not affected. For a mounting block that has been subjected to wear (e.g., a surface that has been worn out of a recess), the shim 300 may provide a shimming correction for the worn position, thereby ensuring cutting efficiency. It is understood that, in order to better ensure the protection of the mounting seat by the gasket 300, the gasket 300 may be made of an alloy material with better wear resistance. The alloy material may include, for example, a 65 manganese steel alloy. Alternatively, the shim 300 may be of the same material as the pick body 100.

For example, a mounting through hole may be provided in the mounting seat. The shank 130 may pass through the mounting through-hole, which may have a diameter smaller than the outer diameter of the shoulder 120. In this way, it is ensured that the tooth shoulder 120 and the tooth head 110 can be better retained on the outside of the mounting seat. The aperture of the mounting through hole is smaller than the outer diameter of the gasket 300, so that the gasket 300 is better clamped between the tooth shoulder 120 and the mounting seat, and the stability of the position of the gasket 300 is ensured.

Illustratively, along the axial direction of the pick body 100, the projection of the shoulder 120 onto the plane of the shim 300 may be within the shim 300. Thus, the outer edge of the shim 300 projects beyond the outer diameter of the shoulder 120 in the axial direction of the pick body 100. The covering area of the mounting seat in the direction is larger, and the abrasion of the mounting seat is better reduced. In embodiments not shown, the projection of the shoulder on the plane of the shim can be outside the shim or the projection of the shoulder on the plane of the shim can be flush with the shim, in the axial direction of the pick body.

In particular, the shape of the gasket 300 may be configured according to different use requirements. By way of example and not limitation, the outer perimeter of the gasket 300 may be circular. The outer diameter of the washer 300 may be greater than the outer diameter of the tooth shoulder 120. Thus, the circular gasket 300 can ensure the rotating stability of the gasket 300 while ensuring that the gasket 300 has a good protection effect on the mounting seat. Or the periphery of the gasket can be in a regular polygon shape, so that the gasket can rotate relative to the cutting pick body, and excessive limitation is not performed.

Illustratively, referring to fig. 2, spacer 300 defines a circular through hole 310, and shank 130 is mounted in the mounting seat through circular through hole 310. Thus, the circular through hole 310 may further ensure smooth rotation of the spacer 300. In practical applications, the shape of the tooth shank can be various, such as a straight shank and a stepped tooth shank. The diameter of the circular through hole is larger than the maximum diameter of the tooth handle, so that the gasket can be better sleeved on the tooth handle.

For example, referring to fig. 3 and 4, the spacer 300 may further include a limiting rib 320. The limiting convex rib 320 extends from the edge of the circular through hole 310 towards the mounting seat, and at least part of the structure of the limiting convex rib 320 can extend into the mounting through hole of the mounting seat. When installing gasket 300, can be with the one side orientation mount pad that is provided with spacing protruding muscle 320, because spacing protruding muscle 320 at least partial structure can stretch into to the mount pad in, spacing protruding muscle 320 can play limiting displacement like this, guarantees the firm of gasket 300 position.

Illustratively, referring to fig. 2, the spacing rib 320 may have a ring shape. The annular limiting convex rib 320 can ensure that the stress of the contact part of the limiting convex rib 320 and the tooth handle 130 is more balanced when the gasket 300 rotates, so as to ensure the stability of the rotation of the gasket 300. In an embodiment not shown, the limiting ribs may be a plurality of limiting blocks disposed around the circular through hole and spaced apart by a certain distance.

Illustratively, with combined reference to fig. 2, 3 and 4, the length of the spacing bead 320 projecting beyond the shim 300 in the axial direction of the pick body 100 may gradually increase in a direction radially inward of the circular through bore 310. Like this, the surface of spacing protruding muscle 320 is a grade, can play the guide effect when installation gasket 300, makes gasket 300 can install to preset position high-efficiently, improves the installation effectiveness. Specifically, the outer surface of the position-limiting rib 320 may have an arc-shaped structure (see fig. 3). In another embodiment, the position-limiting rib 320 is a truncated cone with an inclined outer surface (see fig. 4).

For example, the mounting seat may be a single piece with the mounting through-hole located inside the single piece, into which the shank is mounted. Therefore, the production difficulty and the production cost of the mounting seat can be reduced by the arrangement of the integrated piece. Alternatively, the mounting seat may include a tooth seat and a tooth sleeve, the rear end of the tooth sleeve may be inserted into the tooth seat, a mounting through hole is provided in the tooth sleeve, the tooth shank 130 is mounted into the mounting through hole, and the gasket 300 is located between the front end of the tooth sleeve and the tooth shoulder 120. Thus, the application range of the cutting pick assembly can be ensured.

According to another aspect of the present invention, there is also provided a mining machine. The mining machine may include a pick assembly as any one of the above. The gasket 300 can better reduce the abrasion of the mounting seat, improve the durability of the mounting seat and reduce the frequency of replacing the cutting tooth assembly by the mining machine. Materials such as broken stones are prevented from entering the mounting seat, abrasion inside the mounting seat is reduced, rotation of the cutting pick body 100 in the mounting seat is not affected, and cutting efficiency of the mining machine is guaranteed.

In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front", "rear", "upper", "lower", "left", "right", "horizontal", "vertical", "horizontal" and "top", "bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplification of description, and in the case of not making a contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be interpreted as limiting the scope of the present invention; the terms "inner" and "outer" refer to the interior and exterior relative to the contours of the components themselves.

For convenience of description, relative terms of regions, such as "over 8230," "over," "on 8230," "upper surface," "over," and the like, may be used herein to describe the positional relationship of one or more of the components or features with respect to other components or features as illustrated in the figures. It is to be understood that the relative terms of the regions are intended to encompass not only the orientation of the element as depicted in the figures, but also different orientations in use or operation. For example, if an element in the drawings is turned over in its entirety, the articles "over" or "on" other elements or features will include the articles "under" or "beneath" the other elements or features. Thus, the exemplary terms "at 8230; \8230; 'above" may include both orientations "at 8230; \8230;' above 8230; 'at 8230;' below 8230;" above ". Further, these components or features may also be positioned at various other angles (e.g., rotated 90 degrees or other angles), all of which are intended to be encompassed herein.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, elements, components, and/or combinations thereof, unless the context clearly indicates otherwise.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. Furthermore, it will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that many more modifications and variations are possible in light of the teaching of the present invention and are within the scope of the invention as claimed. The scope of the present invention is defined by the appended claims and their equivalents.

Claims (10)

1. A cutting pick assembly, comprising:

the cutting pick comprises a cutting pick body, a cutting pick body and a cutting pick body, wherein the cutting pick body comprises a pick head, a pick shoulder and a pick handle, the pick head, the pick shoulder and the pick handle are sequentially and coaxially connected along the axial direction of the cutting pick body, and the outer diameter of the pick shoulder is larger than the outer diameters of the pick head and the pick handle;

the mounting seat is used for mounting the tooth handle into the mounting seat, and the tooth shoulder is exposed out of the mounting seat; and

the gasket is sleeved on the outer side of the tooth handle, and the gasket is clamped between the tooth shoulder and the mounting seat in the axial direction of the cutting pick body.

2. A pick assembly as claimed in claim 1, in which a mounting through-hole is provided in the mounting block, the shank passing through the mounting through-hole, the mounting through-hole having a diameter smaller than the outer diameter of the shoulder and the mounting through-hole having a diameter smaller than the outer diameter of the shim.

3. A pick assembly as claimed in claim 1, in which, in the axial direction of the pick body, the projection of the shoulder onto the plane of the shim is within the shim.

4. A pick assembly as claimed in claim 1, in which the shim has a circular through bore formed therein through which the shank is mounted into the mounting block.

5. A pick assembly as claimed in claim 4, wherein a limit lug is provided on the shim, the limit lug extending from the edge of the circular through bore in a direction towards the mounting block, at least part of the structure of the limit lug projecting into the mounting through bore of the mounting block.

6. A pick assembly as claimed in claim 5, in which the spacing rib is annular.

7. A pick assembly as claimed in claim 5, in which the spacing bead projects beyond the length of the shim in the axial direction of the pick body increasing progressively in a direction radially inwards of the circular through bore.

8. A pick assembly as claimed in claim 1, in which the outer periphery of the shim is circular or in the form of a regular polygon.

9. A pick assembly as claimed in claim 1, in which the mounting block is a one-piece; alternatively, the first and second electrodes may be,

the mounting seat comprises a tooth seat and a tooth sleeve, the rear end of the tooth sleeve is inserted into the tooth seat, a mounting through hole is formed in the tooth sleeve, the tooth handle is mounted in the mounting through hole, and the gasket is located between the front end of the tooth sleeve and the tooth shoulder.

10. A mining machine, characterized in that the mining machine has a pick assembly as claimed in any one of claims 1 to 9.

Images