阅读说明：本技术 刨运梁结构和机群式采煤机组 (Planing beam structure and cluster type coal mining unit ) 是由 王耀辉 李伟东 汪义龙 孙晓虎 刘杰 伏明 郝强 郭孝琛 徐浩 于 2021-06-25 设计创作，主要内容包括：本发明提供了一种刨运梁结构和机群式采煤机组,涉及采煤机械技术领域,包括刨运梁本体,刨运梁本体上设有多个采煤单元,每个采煤单元包括第一链轮、第二链轮以及用于连接第一链轮和第二链轮的链条,链条上间隔设有多个刨头。通过在刨运梁本体上设置多个采煤单元,以使设置在每个采煤单元的链条上的刨头在第一链轮和第二链轮之间进行回转运动,实现采煤作业,相比于现有技术,多个采煤单元代替了原有的一个整体采煤单元,即将原先的一根链条拆分为多根链条,减少了链条断裂的机率,提高工作面的安全性,当某个采煤单元的链条断裂后,便于维修,不需要对其他采煤单元进行拆装,同时,可以适当提高机组功率,提高采煤截割能力。(The invention provides a planing beam structure and a cluster type coal mining unit, and relates to the technical field of coal mining machinery. Through set up a plurality of coal mining units on the planing transport roof beam body, so that the plane head that sets up on the chain of every coal mining unit carries out rotary motion between first sprocket and second sprocket, realize coal mining operation, compare in prior art, a plurality of coal mining units have replaced original whole coal mining unit, be about to original a chain split into many chains, the cracked probability of chain has been reduced, the security of working face is improved, after the chain fracture of certain coal mining unit, be convenient for maintain, need not carry out the dismouting to other coal mining units, and simultaneously, unit power can suitably be improved, coal mining cutting ability is improved.)

1. The utility model provides a transportation beam structure, includes transportation beam body (10), its characterized in that, be equipped with a plurality of coal mining units on transportation beam body (10), every coal mining unit includes first sprocket (110), second sprocket (120) and is used for connecting first sprocket (110) with chain (130) of second sprocket (120), the interval is equipped with a plurality of planes (140) on chain (130).

2. The planing beam structure according to claim 1, wherein the second sprocket (120) of one of the coal mining units is connected to the first sprocket (110) of the other coal mining unit by a power transmission mechanism in two adjacent coal mining units.

3. The planing beam structure according to claim 2, wherein the planing beam body (10) comprises a plurality of successively connected sub planing beams (100), each sub planing beam (100) is provided with one coal mining unit, a connecting unit (200) is arranged between two adjacent sub planing beams (100), one end of each connecting unit (200) is hinged with one sub planing beam (100), and the other end of each connecting unit (200) is hinged with the other sub planing beam (100), so that the distance between two adjacent sub planing beams (100) relative to the coal seam floor is adjustable.

4. Planing beam structure according to claim 3, characterized in that said connection unit (200) comprises a first rotation shaft (210), a second rotation shaft (220) and a third rotation shaft (230) arranged parallel to each other, said second rotation shaft (220) being located between said first rotation shaft (210) and said second rotation shaft (220);

a first gear (211) is arranged on the first rotating shaft (210), a second gear (221) is arranged on the second rotating shaft (220), a third gear (231) is arranged on the third rotating shaft (230), the first gear (211) is meshed with the second gear (221), and the second gear (221) is meshed with the third gear (231);

one of the sub-planing beams (100) is hinged to the connecting unit (200) by the first rotating shaft (210), and the second chain wheel (120) of the sub-planing beam (100) is arranged on the first rotating shaft (210) so that the first gear (211) and the second chain wheel (120) rotate synchronously; the other sub-planing beam (100) is hinged with the connecting unit (200) through the third rotating shaft (230), and the first chain wheel (110) is arranged on the third rotating shaft (230) so that the third gear (231) and the first chain wheel (110) rotate synchronously;

the first gear (211), the second gear (221), and the third gear (231) that mesh with each other form the power transmission mechanism.

5. Planing beam structure according to claim 4, characterised in that said first gear (211), said second gear (221) and said third gear (231) are cylindrical gears.

6. Planing beam structure according to claim 4, characterized in that the diameter of said first gear (211) and the diameter of said third gear (231) are the same, and the diameter of said second gear (221) is larger than the diameter of said first gear (211) and said second gear (221).

7. Planing beam structure according to claim 4, characterized in that said connection unit (200) comprises a housing (240), said first rotation shaft (210), said second rotation shaft (220) and said third rotation shaft (230) being rotatably connected with said housing (240) by means of a bearing assembly, respectively.

8. A cluster coal cutter unit including a planing beam structure according to any one of claims 1 to 7.

9. The fleet coal mining machine set according to claim 8, wherein the fleet coal mining machine set further comprises a first drive mechanism (20) and a second drive mechanism (30);

the first driving mechanism (20) is connected with the first chain wheel (110) of the coal mining unit and is used for driving the first chain wheel (110) to rotate;

the second driving mechanism (30) is connected with the digging beam body (10) and used for driving the digging beam body (10) to move in the direction parallel to the coal seam floor and in the direction perpendicular to the coal seam floor.

10. The fleet mining machine set according to claim 9, wherein the second drive mechanism (30) includes a bracket (32) and a plurality of drive units (31); the plurality of driving units (31) are respectively arranged on the brackets (32);

the planing transport beam body (10) comprises a plurality of sub planing transport beams (100) which are connected in sequence, each sub planing transport beam (100) is provided with one coal mining unit, and two adjacent sub planing transport beams (100) are connected through a connecting unit (200);

the driving units (31) correspond to the sub-planing transport beams (100) one to one, and each driving unit (31) is connected with one sub-planing transport beam (100) and used for driving the sub-planing transport beams (100) to move in the direction perpendicular to the coal seam floor.

Technical Field

The invention relates to the technical field of coal mining machinery, in particular to a planing transport beam structure and a cluster type coal mining unit.

Background

The steeply inclined coal seam refers to a coal seam with an inclination angle of more than 45 degrees during underground mining, and mechanized mining of steeply inclined thin and medium coal seams is always a difficult problem which puzzles the mining boundary at home and abroad.

At present, a longwall type digging and transporting fully-mechanized mining unit for mining along the trend is developed in China, two ends of a digging and transporting beam of the whole unit are respectively provided with a chain wheel, the two chain wheels are connected through a chain, a digging head is arranged on the chain, and coal mining work is carried out through the rotary motion of the digging head. Because the whole length of the digging and transporting beam is very large, the chain breakage risk probability of power transmission of a long-distance single chain is high, the chain breakage causes harm to personnel on a working face, the maintenance is inconvenient after the chain breakage occurs, the unit power does not exceed 200Kw, and the coal mining and cutting capacity is limited.

Disclosure of Invention

The invention aims to provide a planing beam structure and a cluster type coal mining unit, which solve the technical problems that the existing planing beam fully-mechanized coal mining unit has large overall length, the chain breakage risk probability of power transmission of a long-distance single chain is high, chain breakage causes harm to personnel on a working face, the maintenance is inconvenient after chain breakage occurs, the unit power does not exceed 200Kw, and the coal mining and cutting capacity is limited.

The invention provides a planing transport beam structure which comprises a planing transport beam body, wherein a plurality of coal mining units are arranged on the planing transport beam body, each coal mining unit comprises a first chain wheel, a second chain wheel and a chain for connecting the first chain wheel and the second chain wheel, and a plurality of planing heads are arranged on the chain at intervals.

Further, in two adjacent coal mining units, the second chain wheel of one coal mining unit is connected with the first chain wheel of the other coal mining unit through a power transmission mechanism.

Furthermore, the planing transport beam body comprises a plurality of sub planing transport beams which are connected in sequence, each sub planing transport beam is provided with one coal mining unit, a connecting unit is arranged between every two adjacent sub planing transport beams, one end of each connecting unit is hinged to the corresponding sub planing transport beam, and the other end of each connecting unit is hinged to the corresponding sub planing transport beam, so that the distance between every two adjacent sub planing transport beams and the distance between the corresponding sub planing transport beams are adjustable.

Furthermore, the connecting unit comprises a first rotating shaft, a second rotating shaft and a third rotating shaft which are arranged in parallel, and the second rotating shaft is positioned between the first rotating shaft and the second rotating shaft;

a first gear is arranged on the first rotating shaft, a second gear is arranged on the second rotating shaft, a third gear is arranged on the third rotating shaft, the first gear is meshed with the second gear, and the second gear is meshed with the third gear;

one of the sub-planing beams is hinged with the connecting unit through the first rotating shaft, and the second chain wheel of the sub-planing beam is arranged on the first rotating shaft so that the first gear and the second chain wheel rotate synchronously; the other sub-planing and transporting beam is hinged with the connecting unit through the third rotating shaft, and the first chain wheel is arranged on the third rotating shaft so that the third gear and the first chain wheel rotate synchronously;

the first gear, the second gear, and the third gear that mesh with each other form the power transmission mechanism.

Further, the first gear, the second gear and the third gear are cylindrical gears.

Further, the diameter of the first gear is the same as that of the third gear, and the diameter of the second gear is larger than that of the first gear and that of the second gear.

Further, the connecting unit comprises a housing, and the first rotating shaft, the second rotating shaft and the third rotating shaft are rotatably connected with the housing through a bearing assembly respectively.

The cluster type coal mining unit provided by the invention comprises the planing transport beam structure.

Further, the cluster type coal mining unit further comprises a first driving mechanism and a second driving mechanism;

the first driving mechanism is connected with the first chain wheel of the coal mining unit and used for driving the first chain wheel to rotate;

the second driving mechanism is connected with the digging beam body and used for driving the digging beam body to move in the direction parallel to the coal seam floor and in the direction perpendicular to the coal seam floor.

Further, the second driving mechanism comprises a bracket and a plurality of driving units; the plurality of driving units are respectively arranged on the bracket;

the planing transport beam body comprises a plurality of sub planing transport beams which are connected in sequence, each sub planing transport beam is provided with one coal mining unit, and two adjacent sub planing transport beams are connected through a connecting unit;

the driving units correspond to the sub-planing and transporting beams one to one, and each driving unit is connected with one sub-planing and transporting beam and used for driving the sub-planing and transporting beams to move in the direction perpendicular to the coal seam floor.

The invention provides a planing transport beam structure which comprises a planing transport beam body, wherein a plurality of coal mining units are arranged on the planing transport beam body, each coal mining unit comprises a first chain wheel, a second chain wheel and a chain for connecting the first chain wheel and the second chain wheel, and a plurality of planing heads are arranged on the chain at intervals.

According to the planing beam structure provided by the invention, the plurality of coal mining units are arranged on the planing beam body, each coal mining unit comprises the first chain wheel and the second chain wheel, and the two chain wheels are independently connected through the chain, so that a planing head arranged on the chain performs rotary motion between the first chain wheel and the second chain wheel, and coal mining operation is realized.

The cluster type coal mining unit provided by the invention comprises the planing transport beam structure, so that the cluster type coal mining unit also has the advantages of the planing transport beam structure.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.

Fig. 1 is a schematic view of a connection structure of two sub-planing beams in the prior art;

fig. 2 is a schematic view illustrating an initial connection state of the sub-planing beam and the connection unit of the planing beam structure according to the embodiment of the present invention;

fig. 3 is a schematic view of a situation where two sub-transporting beams of the transporting beam structure provided by the embodiment of the present invention are dislocated from top to bottom;

fig. 4 is a schematic structural view of a connection unit of the planing beam structure according to the embodiment of the present invention;

fig. 5 is a schematic structural diagram of a fleet type coal mining unit according to an embodiment of the present invention;

fig. 6 is a working face layout diagram of a fleet type coal mining unit according to an embodiment of the present invention.

Icon: 100' -son planing and transporting beam;

10-planing and transporting the beam body; 20-a first drive mechanism; 21-driving the machine head; 22-a transition scaffold; 30-a second drive mechanism; 31-a drive unit; 32-a scaffold;

100-son planing and transporting beam; 110-a first sprocket; 120-a second sprocket; 130-a chain; 140-planing head; 200-a connection unit; 210-a first shaft; 211-a first gear; 220-a second rotating shaft; 221-a second gear; 230-a third rotating shaft; 231-a third gear; 240-a housing; 250-tapered roller bearing.

Detailed Description

The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 2 to 4, the transportation beam structure provided by this embodiment includes a transportation beam body 10, a plurality of coal mining units are disposed on the transportation beam body 10, each coal mining unit includes a first sprocket 110, a second sprocket 120 and a chain 130 for connecting the first sprocket 110 and the second sprocket 120, and a plurality of planing heads 140 are disposed on the chain 130 at intervals.

The planing beam structure provided by the embodiment is characterized in that a plurality of coal mining units are arranged on the planing beam body 10, each coal mining unit comprises a first chain wheel 110 and a second chain wheel 120, and the two chain wheels are connected through a chain 130 independently, so that a planing head 140 arranged on the chain 130 performs rotary motion between the first chain wheel 110 and the second chain wheel 120, coal mining operation is realized.

It should be noted that the number of the coal mining units in this embodiment is two or more, where the number of the coal mining units may correspond to a plurality of driving structures, and each driving structure is respectively connected to the first sprocket 110 in the corresponding coal mining unit and is used for driving the first sprocket 110 to rotate, so as to drive the chain 130 to rotate, so that the planing head 140 fixedly connected to the chain 130 can make a rotary motion together with the chain 130, thereby implementing coal mining operation. The plurality of coal mining units can correspond to the driving forms of the plurality of driving structures, and the running speeds of the plurality of coal mining units can be respectively controlled, so that the coal cutting speeds of different areas of one working face are realized, and the control of coal flow is facilitated.

Preferably, in this embodiment, a structural form that one driving structure drives a plurality of coal mining units may also be adopted, and it should be noted that the driving structure may be disposed at one end of the planing beam body 10, and, in two adjacent coal mining units, the second sprocket 120 of one coal mining unit is connected with the first sprocket 110 of another coal mining unit through a power transmission mechanism.

In this embodiment, the planing transport beam body 10 includes a plurality of sub planing transport beams 100 connected in sequence, each sub planing transport beam 100 is provided with a coal mining unit, a connection unit 200 is provided between two adjacent sub planing transport beams 100, one end of the connection unit 200 is hinged to one sub planing transport beam 100, and the other end of the connection unit 200 is hinged to the other sub planing transport beam 100, so that the distance between two adjacent sub planing transport beams 100 relative to the coal seam floor is adjustable.

Preferably, the connection unit 200 includes a first rotation shaft 210, a second rotation shaft 220 and a third rotation shaft 230 arranged in parallel with each other, the second rotation shaft 220 being located between the first rotation shaft 210 and the second rotation shaft 220;

a first gear 211 is arranged on the first rotating shaft 210, a second gear 221 is arranged on the second rotating shaft 220, a third gear 231 is arranged on the third rotating shaft 230, the first gear 211 is meshed with the second gear 221, and the second gear 221 is meshed with the third gear 231;

a sub-transporting beam 100 is hinged to the connection unit 200 by a first rotating shaft 210, and a second sprocket 120 of the sub-transporting beam 100 is provided on the first rotating shaft 210 so that the first gear 211 and the second sprocket 120 rotate in synchronization; the other sub-planing girder 100 is hinged to the connecting unit 200 through a third rotating shaft 230, and the first sprocket 110 is disposed on the third rotating shaft 230 so that the third gear 231 rotates synchronously with the first sprocket 110; the first gear 211, the second gear 221, and the third gear 231, which mesh with each other, form a power transmission mechanism.

The existing long-wall planing and transporting fully-mechanized coal mining machine set has insufficient adaptability to a bottom plate and a top plate in the operation process, namely, the thickness of a coal bed is usually different in the length direction of a whole planing and transporting beam, and the existing whole planing and transporting beam is a fixed whole, so that the coal mining depth is also the same, and the condition of mining leakage is often caused.

Fig. 1 is a schematic view showing a connection structure of two sub-transporting beams 100' without a connection unit 200 installed therein, which cannot move up and down in the prior art, fig. 2 is a schematic view showing an initial state of two sub-transporting beams 100 with the connection unit 200 installed therein, and fig. 3 is a schematic view showing a state in which the two sub-transporting beams 100 are misaligned up and down.

In this embodiment, the planing transport beam body 10 is split into a plurality of sub planing transport beams 100 connected in sequence, and two adjacent sub planing transport beams 100 are connected by the connecting unit 200 and connected in a hinged manner, so that one sub planing transport beam 100 can rotate together by an angle relative to the other sub planing transport beam 100, thereby adjusting the distance between the sub planing transport beam 100 and the coal seam floor, that is, the distance between two adjacent sub planing transport beams 100 and the coal seam floor can be different, and therefore, the coal mining unit on the sub planing transport beam 100 at a lower position can complete the coal mining work at a lower layer.

Meanwhile, in this embodiment, the connecting unit 200 adopts the above structural form, which not only can achieve the purpose of connecting the two sub-planing beams 100, but also achieves the purpose of power transmission between two adjacent coal mining units, and a group of structures is adopted to achieve two purposes, so that the overall structure of the planing beam structure is simple.

The first gear 211, the second gear 221, and the third gear 231 are cylindrical gears.

Wherein, the diameter of the first gear 211 is the same as that of the third gear 231, and the diameter of the second gear 221 is larger than that of the first gear 211 and the second gear 221. The rotation speeds of the chains 130 of two adjacent coal mining units can be further ensured to be the same, and the coal mining efficiency is ensured to be uniform.

Further, the connection unit 200 includes a housing 240, and the first, second and third rotation shafts 210, 220 and 230 are rotatably connected to the housing 240 by a bearing assembly, respectively. In this embodiment, the bearing assembly includes two bearings, for example, one end of the first rotating shaft 210 is connected to the housing 240 through one bearing, the other end is connected to the housing 240 through the other bearing, and the connection manner between the second rotating shaft 220 and the housing 240 and the connection manner between the third rotating shaft 230 and the housing 240 are the same as the connection manner of the first rotating shaft 210, which is not described herein again. It should be noted that, preferably, the bearing used for connection may be a tapered roller bearing 250, which can bear combined radial and axial loads mainly including radial loads, and has a large bearing capacity and a low limit rotation speed.

As shown in fig. 5 and fig. 6, the fleet type coal mining unit provided in this embodiment includes the planing girder structure described above. Specifically, the fleet coal cutter assembly also includes a first drive mechanism 20 and a second drive mechanism 30.

The first driving mechanism 20 is connected with a first chain wheel 110 of the coal mining unit and is used for driving the first chain wheel 110 to rotate; the first driving mechanism 20 may include a driving head 21, which is located at one end of the transportation beam structure and fixed on the transition support 22, a driving end of the driving head 21 is connected to the first sprocket 110 of the coal mining unit closest to the driving head 21, and a plurality of coal mining units are connected by a power transmission mechanism to realize power transmission, so that the plurality of coal mining units are simultaneously used for coal mining.

The second driving mechanism 30 is connected to the transportation beam body 10 for driving the transportation beam body 10 to move in a direction parallel to the coal seam floor and in a direction perpendicular to the coal seam floor. In the present embodiment, the second drive mechanism 30 includes a bracket 32 and a plurality of drive units 31; the plurality of driving units 31 are respectively arranged on the brackets 32; the planing transport beam body 10 includes a plurality of sub planing transport beams 100 connected in sequence, each sub planing transport beam 100 is provided with a coal mining unit, and two adjacent sub planing transport beams 100 are connected by a connecting unit 200.

The driving units 31 correspond to the sub-planing beams 100 one to one, and each driving unit 31 is connected to one sub-planing beam 100 and is used for driving the sub-planing beams 100 to move in the direction perpendicular to the coal seam floor.

It should be noted that the connection unit 200 connected between the two sub-planing beams 100 is a structural form of the connection unit 200 in the planing beam structure, and will not be described herein again.

In the prior art, the existing planing and transporting beam is integrally connected in a linear state, so that the thrust oil cylinder is stressed excessively and is easy to damage. When the whole planing beam is lifted, the support 32 is stressed greatly, and the stability of the system is not high.

In this embodiment, the fleet type coal mining machine set includes a plurality of sub-transporting beams 100 connected in sequence, each sub-transporting beam 100 is provided with a coal mining unit, two adjacent sub-transporting beams 100 are connected by a connecting unit 200, and each sub-transporting beam 100 is connected with the support 32 by a driving unit 31, wherein the forward movement and the downward movement of the sub-transporting beams 100 are realized by the driving unit 31, wherein the driving unit 31 can be selected from a pushing jack and two swinging jacks in the prior art, the whole transporting beam structure is divided into multiple sections, thereby avoiding the probability of damage to the second driving mechanism 30, and meanwhile, one driving unit 31 is used to control the structural form of one sub-transporting beam 100, and improving the stability of the system.

According to the fleet type coal mining unit provided by the embodiment, after a single chain 130 of a certain coal mining unit is broken, the damage to equipment is reduced, the system can be stopped in time after monitoring the broken chain state, and the system stops moving completely through the restraining action of the adjacent coal mining units and the connecting unit 200. In addition, after a single coal mining unit is damaged, the maintenance is convenient, and the disassembly and the assembly of the adjacent coal mining units are not influenced. The machine group type coal mining machine set can change and design corresponding sizes according to working face conditions, and can be used for mining of a slowly inclined coal seam, a steeply inclined coal seam, a thin coal seam and a large inclination angle medium and thick coal seam.

In summary, in the transportation beam structure provided by the present invention, the plurality of coal mining units are disposed on the transportation beam body 10, each coal mining unit includes the first sprocket 110 and the second sprocket 120, and the two sprockets are connected separately by the chain 130, so that the plough head 140 disposed on the chain 130 performs a rotary motion between the first sprocket 110 and the second sprocket 120, thereby achieving a coal mining operation.

The cluster type coal mining unit provided by the invention comprises the planing transport beam structure, so that the cluster type coal mining unit also has the advantages of the planing transport beam structure.

The planing beam structure and the cluster type coal mining unit provided by the invention have the following advantages:

1. the safety of the system is improved, the risk of the system is dispersed, and the stability of the system is improved.

2. The adaptability of the top plate and the bottom plate is improved, the chain is conveniently disassembled and assembled when the chain is broken, and the problem of systematic disassembly and assembly caused by the whole chain 130 is solved.

3. The plurality of coal mining units can respectively control the running speed of the coal mining units, so that the coal cutting speed of different areas of one working face is realized, and the control of coal flow is facilitated.

4. The cluster type coal mining unit can realize simultaneous operation or independent operation of a plurality of coal mining units, increase the cutting power of local coal seams and improve the adaptability of the unit.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.