CN220434739U

CN220434739U - Pick installation mechanism, mineral cutting system and mining equipment

Info

Publication number: CN220434739U
Application number: CN202321795377.1U
Authority: CN
Inventors: 赵晋锋; 王希文; 张君
Original assignee: Sany Heavy Equipment Co Ltd
Current assignee: Sany Heavy Equipment Co Ltd
Priority date: 2023-07-10
Filing date: 2023-07-10
Publication date: 2024-02-02
Anticipated expiration: 2033-07-10

Abstract

The utility model relates to the technical field of mining equipment, in particular to a pick installation mechanism, a mineral cutting system and mining equipment; the pick mounting mechanism includes: the tooth holder is provided with an inner hole and a mounting groove, and the mounting groove extends to the end face of the tooth holder along the side wall of the inner hole; a first mounting sleeve received in the mounting groove; the second mounting sleeve penetrates through the inner hole and is connected with the tooth holder, and the second mounting sleeve is used for covering the mounting groove so as to limit the first mounting sleeve in the mounting groove; and the mounting hole is formed in the second mounting sleeve and is used for mounting the cutting pick. Because the mounting groove extends to the face of the tooth holder along the side wall of the inner hole of the tooth holder, the first mounting sleeve accommodated in the mounting groove can reduce the impact on the side wall of the inner hole of the tooth holder and the face of the tooth holder, thereby reducing the possibility of damage of the tooth holder, solving the problem that the tooth holder is easy to damage and prolonging the service life of the pick mounting mechanism.

Description

Pick installation mechanism, mineral cutting system and mining equipment

Technical Field

The utility model relates to the technical field of mining equipment, in particular to a cutting pick installation mechanism, a mineral cutting system and mining equipment.

Background

Mining equipment is typically provided with picks to cut mineral products through the picks. The pick is typically mounted to and in contact with the block. In mineral exploitation, cutting picks are frequently used for cutting.

However, when cutting is performed using a pick, the pick will collide with the holder, thereby creating a problem in that the holder is easily damaged.

Therefore, there is a need to design a pick-mounting mechanism, mineral cutting system and mine equipment that reduces the likelihood of damage to the pick holder, thereby improving the service life of the pick-mounting mechanism.

Disclosure of Invention

The present utility model aims to solve at least one of the technical problems existing in the prior art or related art.

Therefore, the utility model provides the pick mounting mechanism which can reduce the possibility of damage to the tooth holder, thereby reducing the frequency of replacing the tooth holder and prolonging the service life of the tooth holder.

The utility model also provides a mineral cutting system comprising the pick mounting mechanism and mining equipment comprising the pick mounting mechanism or the mineral cutting system.

According to an embodiment of the first aspect of the present utility model, a pick-mounting mechanism includes: the tooth holder is provided with an inner hole and a mounting groove, and the mounting groove extends to the end face of the tooth holder along the side wall of the inner hole; a first mounting sleeve received in the mounting groove; the second mounting sleeve penetrates through the inner hole and is connected with the tooth holder, and the second mounting sleeve is used for covering the mounting groove so as to limit the first mounting sleeve in the mounting groove; and the mounting hole is formed in the second mounting sleeve and is used for mounting the cutting pick.

Optionally, the first mounting sleeve includes a side surface and a flange surface, the side surface and the flange surface being connected, the side surface being received in a portion of the mounting groove extending along a side wall of the bore, the flange surface being received in a portion of the mounting groove extending along an end face of the tooth holder.

Optionally, a lubricant filling hole is formed in the side surface of the first mounting sleeve, and a lubricant is filled in the lubricant filling hole.

Optionally, the lubricant is a graphite filler.

Optionally, a top thread hole is formed on the flange surface of the first mounting sleeve.

Optionally, the second mounting sleeve includes: the mounting part penetrates through the inner hole and is connected with the tooth holder and is used for fixedly mounting the cutting pick; and the first limiting part is connected with the mounting part and used for covering the flange surface of the first mounting sleeve, which is positioned at the end surface of the tooth holder.

Optionally, the mounting portion is provided with a keyway, and the keyway is used for being fixedly connected with the cutting pick through a mounting key.

Optionally, the spacing groove has been seted up to the installation department of second installation cover, and pick installation mechanism still includes the connecting piece, and the connecting piece includes second spacing portion and joint portion, and second spacing portion is connected with joint portion, and the terminal surface contact of second spacing portion and second installation cover, joint portion setting are in the spacing groove to the removal of restriction second installation cover.

A mineral cutting system according to an embodiment of the second aspect of the utility model comprises a pick mounting mechanism of the first aspect or implementations thereof.

According to an embodiment of the third aspect of the utility model, a mining apparatus comprises a pick mounting mechanism in the first aspect or implementations thereof, and a mineral cutting system in the second aspect or implementations thereof.

One of the above technical solutions has at least the following advantages or beneficial effects:

for the cutting pick mounting mechanism provided by the embodiment of the utility model, the first mounting sleeve can be accommodated through the mounting groove formed in the tooth holder; because the mounting groove extends to the face of the tooth holder along the side wall of the inner hole of the tooth holder, the first mounting sleeve accommodated in the mounting groove can reduce the impact on the side wall of the inner hole of the tooth holder and the face of the tooth holder, thereby reducing the possibility of damage of the tooth holder, solving the problem that the tooth holder is easy to damage and prolonging the service life of the pick mounting mechanism. In addition, because the second installation sleeve covering the installation groove limits the first installation sleeve in the installation groove, the firmness degree of the joint between the first installation sleeve and the tooth holder can be improved, the movable space of the first installation sleeve is reduced, and the vibration degree of the first installation sleeve is further reduced, so that the impact on the tooth holder is further reduced.

The mineral cutting system provided by the embodiment of the utility model is provided with the pick installation mechanism, and the mineral cutting system provided with the pick installation mechanism has corresponding technical effects because the pick installation mechanism has the technical effects.

The mining equipment provided by the embodiment of the utility model is provided with the pick installation mechanism or the mineral cutting system, and the mining equipment provided with the pick installation mechanism or the mineral cutting system has corresponding technical effects because the pick installation mechanism or the mineral cutting system has the technical effects.

Drawings

FIG. 1 shows a schematic view of a pick-mounting mechanism according to one embodiment of the present utility model;

FIG. 2 shows a schematic view of a first mounting sleeve of a pick-mounting mechanism according to one embodiment of the present utility model;

fig. 3 shows a schematic structural view of a second mounting sleeve of the pick mounting mechanism according to one embodiment of the present utility model.

[ reference numerals description ]

1. A tooth holder; 11. an inner bore; 12. a mounting groove; 2. a first mounting sleeve; 21. a side surface; 22. a flange surface; 23. the lubricant fills the holes; 24. a top thread hole; 3. a second mounting sleeve; 30. a mounting hole; 31. a mounting part; 32. a first limit part; 33. a key slot; 34. a limit groove; 4. cutting pick; 5. installing a key; 6. a connecting piece; 61. a second limit part; 62. and a clamping part.

Detailed Description

The utility model will be better explained by the following detailed description of the embodiments with reference to the drawings. References herein to terms such as "upper", "lower", "inner" and "outer" refer to the orientation of FIG. 1. The position of the first mounting sleeve 2 relative to the connection piece 6 is defined as "up"; the position of the mounting key 5 relative to the second mounting sleeve 3 is defined as "inner".

As described above, the inventors have found in studies of pick mounting mechanisms, mineral cutting systems and mine equipment that mine equipment such as shearer, heading machines and the like may be provided with picks, for example, the drum may be part of a shearer and as shearer actuators, picks may be provided in the drum, for example in the toothholder of the drum. The cutting pick installed through the tooth holder can be in direct contact with the tooth holder; vibration generated in the cutting process by utilizing the cutting pick can lead the tooth holder to be impacted, rubbed and extruded, so that the inner hole and the end face of the tooth holder are damaged by deformation, crushing and the like, and further the failure of the tooth holder is caused. The service life of the tooth holder can be prolonged by material improvement, for example, the damage resistance of the tooth holder is improved by heat treatment, the tooth holder is manufactured by selecting steel materials for chains, and the surface carburization quenching treatment is carried out on the end surface and the inner hole. However, this approach to improving the life of the toothholder by material modification would result in increased costs. In addition, when encountering working conditions such as fracture surface, even full rock fracture surface, the tooth holder is subjected to larger impact, friction and extrusion in the cutting process, so that even if a material with higher performance is adopted, the tooth holder can still be damaged. Since the tooth holder can be welded on the drum, if the tooth holder is damaged, the entire drum needs to be replaced, resulting in a problem of reduced service life of the drum.

In order to at least solve one of the technical problems in the prior art or related technologies, the utility model provides a pick mounting mechanism, a mineral cutting system and mining equipment. A pick mounting mechanism, mineral cutting system and mine apparatus according to some embodiments provided herein are described below with reference to fig. 1-3.

Referring to fig. 1 to 3, a pick-mounting mechanism according to an embodiment of the present utility model includes: the tooth holder 1 is provided with an inner hole 11 and a mounting groove 12, and the mounting groove 12 extends to the end face of the tooth holder 1 along the side wall of the inner hole 11; a first mounting sleeve 2 accommodated in the mounting groove 12; a second mounting sleeve 3 connected with the tooth holder 1 through the inner hole 11, the second mounting sleeve 3 being used for covering the mounting groove 12 to limit the first mounting sleeve 2 in the mounting groove 12; and a mounting hole 30 is formed on the second mounting sleeve 3 and is used for mounting the cutting pick 4.

In an exemplary embodiment, the tooth holder 1 may be fixedly connected with a drum of a mining apparatus; the fixed connection is for example a weld; in this case, the rocker arm of the mining machine can drive the roller to rotate, the roller can drive the tooth holder 1 to rotate, and the tooth holder 1 can drive the cutting pick 4 to rotate so as to squeeze and cut mineral products through the cutting pick 4; the mining equipment may be a miner, such as a shearer, a heading machine, or the like. The first mounting sleeve 2 may be an interference fit with the mounting groove 12. The first mounting sleeve 2 may be a steel sleeve, the hardness of which may be 60HRC (HRC may represent rockwell hardness), and by providing the steel sleeve, wear resistance may be improved. The first installation sleeve 2 can achieve the effect of sharing impact force, so that damage to the tooth holder 1 is reduced, and the service life of the tooth holder 1 is prolonged. The second mounting sleeve 3 may serve to limit the first mounting sleeve 2 and to mount the cutting pick 4.

In an exemplary embodiment, during rock breaking mining, the pick 4 may generate an impact force, e.g., the pick 4 vibrates in contact with the rock wall, thereby generating an impact force. The impact force generated by the cutting pick 4 can be transmitted to the first mounting sleeve 2 through the second mounting sleeve 3, and the first mounting sleeve 2 is buffered to reduce the impact force transmitted to the holder 1. When the first and second mounting sleeves 2, 3 are not provided, the pick 4 will be in direct contact with the block 1 to frequently strike the block 1, which may result in the internal bore 11 and end face of the block 1 being squeezed and rubbed, causing the block 1 to fail due to crushing, deformation, etc. In the present exemplary embodiment, since the first and second mounting sleeves 2 and 3 are provided, buffering can be performed to reduce the impact force transmitted to the tooth holder 1, thereby achieving the effect of reducing damage to the tooth holder 1. In addition, even if the first installation sleeve 2 and the second installation sleeve 3 are damaged, maintenance can be realized by replacing the damaged first installation sleeve 2 and second installation sleeve 3 without replacing the tooth holder 1, so that the possibility of failure of the tooth holder 1 and even the roller is reduced, and the service life of the tooth holder 1 and even the roller is prolonged.

Further, the first mounting sleeve 2 includes a side surface 21 and a flange surface 22, the side surface 21 and the flange surface 22 being connected, the side surface 21 being accommodated in a portion of the mounting groove 12 extending along the side wall of the inner hole 11, and the flange surface 22 being accommodated in a portion of the mounting groove 12 extending along the end face of the tooth holder 1.

In an exemplary embodiment, the side surface 21 and the flange surface 22 may be a unitary structure; the side surface 21 can reduce the impact force applied to the side wall of the inner hole 11, and the flange surface 22 can reduce the impact force applied to the end surface of the tooth holder 1, so that the service life of the tooth holder 1 can be prolonged.

Further, the side surface 21 of the first mounting sleeve 2 is provided with a lubricant filling hole 23, and the lubricant filling hole 23 is filled with a lubricant.

In the exemplary embodiment, by filling the lubricant in the lubricant filling hole 23, the degree of lubrication between the first and second mounting sleeves 2 and 3 and the first and second mounting sleeves 2 and 1 can be improved, friction between parts can be reduced, wear between parts can be reduced, for example, wear between the first and second mounting sleeves 2 and 3 and between the first and second mounting sleeves 2 and 1 can be reduced, and further the service lives of the tooth holder 1, the first and second mounting sleeves 2 and 3 can be improved, thereby improving the service life of the pick mounting mechanism.

Further, the lubricant is a graphite filler. The graphite filler has the characteristics of low cost, easy filling and the like, thereby reducing the cost of the pick installation mechanism.

Further, the flange surface 22 of the first mounting sleeve 2 is provided with a top thread hole 24.

In the exemplary embodiment, when the bolt is installed into the top wire hole 24, the first installation sleeve 2 may be separated from the socket 1 as the bolt contacts the end surface of the socket 1, so that the first installation sleeve 2 that is failed due to deformation or the like may be replaced, which has an advantage of simple operation. A plurality of top wire holes 24, for example four top wire holes 24, may be provided around the axis of the first mounting sleeve 2.

Further, the second mounting sleeve 3 includes: a mounting part 31 penetrating the inner hole 11 and connected with the holder 1 for fixedly mounting the pick 4; the first limiting part 32 is connected with the mounting part 31 and is used for covering the flange surface 22 of the first mounting sleeve 2 at the end surface of the tooth holder 1.

In an exemplary embodiment, the mounting portion 31 and the first limiting portion 32 may be a unitary structure; cushioning is provided by the mounting portion 31 to reduce the impact force transmitted from the pick 4 to the bore 11 of the block 1; the first limit portion 32 also reduces the impact force transmitted from the pick 4 to the end face of the holder 1. In addition, the mounting portion 31 and the first limiting portion 32 cooperate to limit the first mounting sleeve 2 in the mounting groove 12, so as to reduce the movement amplitude of the first mounting sleeve 2, thereby reducing the impact on the tooth holder 1.

Further, the mounting portion 31 is provided with a key groove 33, and the key groove 33 is fixedly connected with the pick 4 through the mounting key 5.

In an exemplary embodiment, the mounting key 5 may be a spline. The second installation sleeve 3 is connected with the cutting pick 4 through the spline, so that the effect of uniformly stressing the second installation sleeve 3 can be achieved.

Further, the mounting portion 31 of the second mounting sleeve 3 is provided with a limit groove 34, the pick mounting mechanism further comprises a connecting piece 6, the connecting piece 6 comprises a second limit portion 61 and a clamping portion 62, the second limit portion 61 is connected with the clamping portion 62, the second limit portion 61 is in contact with the end face of the second mounting sleeve 3, and the clamping portion 62 is arranged in the limit groove 34 to limit movement of the second mounting sleeve 3.

In an exemplary embodiment, the second mounting sleeve 3 may be mounted to the toothholder 1 by a connection 6; accordingly, the second mounting sleeve 3 can be detached from the tooth holder 1 by removing the connecting member 6, so that the effect of facilitating the mounting and dismounting of the second mounting sleeve 3 can be achieved. The limited movement may be, for example, an axial movement of the second mounting sleeve 3, thereby achieving an impact force reducing effect.

In another embodiment, the pick mounting mechanism of the exemplary embodiment may be provided in a mineral cutting system. A mineral product cutting system may represent a cutting system for cutting mineral products. An embodiment of such a cutting system comprises: a cutting system for cutting pre-coal, a cutting system for cutting bottom coal, and a cutting system for cutting top coal. In one embodiment, such a cutting system may specifically include: a rocker arm; the roller is arranged on the rocker arm and is used for cutting mineral products when rotating; and the hydraulic cylinder is connected with the rocker arm and used for driving the rocker arm to move. The block 1 of the pick mounting mechanism of the exemplary embodiment may be fixedly mounted to the drum. The cutting system can be used for mining equipment such as coal mining machines, heading machines and the like.

Because the mineral cutting system provided by the embodiment is provided with the pick installation mechanism provided by any one of the embodiments, the mineral cutting system has all the beneficial effects of the pick installation mechanism provided by any one of the embodiments, and the description is omitted here.

In another embodiment, the pick mounting mechanism or mineral cutting system of the exemplary embodiment may be provided to a mining apparatus. Examples of mining equipment may be coal cutters, mining machines, cutting machines, heading machines, etc.

Because the mining equipment provided by the embodiment is provided with the pick installation mechanism provided by any one of the embodiments, the mining equipment has all the beneficial effects of the pick installation mechanism provided by any one of the embodiments, and the description is omitted here.

In the description of the present utility model, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present utility model, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature is "on" or "under" a second feature, which may be in direct contact with the first and second features, or in indirect contact with the first and second features via an intervening medium. Moreover, a first feature "above," "over" and "on" a second feature may be a first feature directly above or obliquely above the second feature, or simply indicate that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is level lower than the second feature.

In the description of the present specification, the terms "one embodiment," "some embodiments," "example embodiments," "examples," "specific examples," or "some examples," etc., refer to a particular feature, structure, material, or characteristic described in connection with the embodiment or example as being included in at least one embodiment or example of the utility model. In this specification, schematic representations of the above terms are not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in this specification and the features of the different embodiments or examples may be combined and combined by those skilled in the art without contradiction.

While embodiments of the present utility model have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the utility model, and that alterations, modifications, substitutions and variations may be made in the above embodiments by those skilled in the art within the scope of the utility model.

Claims

1. A pick-mounting mechanism, comprising:

the tooth holder (1) is provided with an inner hole (11) and a mounting groove (12), and the mounting groove (12) extends to the end face of the tooth holder (1) along the side wall of the inner hole (11);

a first mounting sleeve (2) accommodated in the mounting groove (12);

the second installation sleeve (3) penetrates through the inner hole (11) and is connected with the tooth holder (1), and the second installation sleeve (3) is used for covering the installation groove (12) so as to limit the first installation sleeve (2) in the installation groove (12);

and the mounting hole (30) is formed in the second mounting sleeve (3) and is used for mounting the cutting pick (4).

2. A pick mounting mechanism according to claim 1, wherein the first mounting sleeve (2) includes a side face (21) and a flange face (22), the side face (21) and the flange face (22) being connected, the side face (21) being received in a portion of the mounting slot (12) extending along a side wall of the bore (11), the flange face (22) being received in a portion of the mounting slot (12) extending along an end face of the block (1).

3. A pick-mounting mechanism according to claim 2, wherein the side face (21) of the first mounting sleeve (2) is provided with a lubricant-filling hole (23), the lubricant-filling hole (23) being filled with a lubricant.

4. A pick-mounting mechanism according to claim 3, wherein the lubricant is a graphite filler.

5. A pick mounting mechanism according to claim 2, wherein the flange face (22) of the first mounting sleeve (2) is provided with a top pick hole (24).

6. A pick mounting mechanism according to claim 1, wherein the second mounting sleeve (3) comprises:

the mounting part (31) penetrates through the inner hole (11) and is connected with the tooth holder (1) and is used for fixedly mounting the cutting pick (4);

and the first limiting part (32) is connected with the mounting part (31) and is used for covering the flange surface (22) of the first mounting sleeve (2) positioned at the end surface of the tooth holder (1).

7. A pick mounting mechanism according to claim 6, wherein the mounting portion (31) is provided with a key slot (33), the key slot (33) being adapted to be fixedly connected to the pick (4) by means of a mounting key (5).

8. A pick mounting mechanism according to claim 6, wherein the mounting portion (31) of the second mounting sleeve (3) is provided with a limit groove (34), the pick mounting mechanism further comprises a connecting member (6), the connecting member (6) comprises a second limit portion (61) and a clamping portion (62), the second limit portion (61) is connected with the clamping portion (62), the second limit portion (61) is in contact with an end face of the second mounting sleeve (3), and the clamping portion (62) is arranged in the limit groove (34) to limit movement of the second mounting sleeve (3).

9. A mineral cutting system, comprising:

a pick-mounting mechanism as claimed in any one of claims 1 to 8.

10. A mining apparatus, comprising:

a pick-mounting mechanism as claimed in any one of claims 1 to 8, or a mineral cutting system as claimed in claim 9.