CN217712543U

CN217712543U - Chain slat type coal seam cutting device

Info

Publication number: CN217712543U
Application number: CN202121764619.1U
Authority: CN
Inventors: 范付恒; 王贺举; 杨晓康
Original assignee: PINGDINGSHAN ANTAIHUA MINING SAFETY EQUIPMENT MANUFACTURING CO LTD
Current assignee: PINGDINGSHAN ANTAIHUA MINING SAFETY EQUIPMENT MANUFACTURING CO LTD
Priority date: 2021-07-30
Filing date: 2021-07-30
Publication date: 2022-11-01
Anticipated expiration: 2031-07-30

Abstract

The utility model discloses a chain slat type coal seam cutting device, mainly be applied to single tunnel, cut administering the coal seam from the unilateral, utilize walking drive mechanism to provide rotation and forward propulsive power for chain slat type circulation digging cutter from the unilateral tunnel, utilize driving motor and drive box to provide rotation power promptly, the removal function that utilizes walking platform drives chain slat type circulation digging cutter and impels forward, cut administering the coal seam, the inside of chain slat type circulation digging cutter is the driven end, and be provided with the roof on the inner pedestal of chain slat type circulation digging cutter, set up the initiative ejector pin of initiative application of force on the roof, the stiff end of initiative ejector pin is in fixed state, it can push up and touch on the seam wall of cutting seam or fix on the fixing base, thereby exert the thrust that matches with walking drive mechanism in the inner initiative of chain slat type circulation digging cutter, make chain slat type circulation digging cutter can be stabilized and cut the coal seam.

Description

Chain slat type coal seam cutting device

Technical Field

The utility model belongs to the technical field of colliery gas is administered, concretely relates to chain slat type coal seam cutting device.

Background

The most common means for treating the gas in the coal mine underground coal seam in China is to arrange dense drill holes, guide a negative pressure pipeline into the drill holes after plugging, and extract the gas existing in the coal seam by using the negative pressure pipeline, so that the gas concentration in the coal seam is reduced, and the production safety in the later coal seam mining process is ensured.

The existing drilling mode adopts the arrangement of dense drilling holes, a plurality of holes communicated with a roadway are formed in a coal seam, hole packers are arranged in each hole, and negative pressure pipeline networking is formed by each hole packer pumping hole and a negative pressure pipeline to extract gas, so that the mode has the following problems:

1. intensive drilling, unit area, large number of drilled holes, large consumption of manpower and material resources for each drilled hole and low additional value;

2. the hole diameter of the drill hole is limited, the effective area of gas released by the coal bed is small, the gas is slowly desorbed in the coal bed, and the extraction period is long;

3. accidents such as gas outburst and orifice spraying and the like easily occur in the drilling, the safety coefficient is low, and the accidents are easily caused;

4. hole collapse is easy to occur in the drilled hole, and gas is not easy to release and extract;

5. the drilling is accompanied with the processes of hydraulic flushing, high-pressure water fracturing, hole making and the like, the labor and the financial resources are consumed, and the manual workload is large;

the existing process also has the problem that the hydraulic punching gas extraction technology is adopted to improve the air permeability of the coal body, and the problems of frequent gas overrun, easy artificial induction outburst and the like exist in the execution process.

Therefore, the existing drilling mode is adopted to treat the gas, and the problems of a large number of drilled holes, a complex construction process, high labor intensity, high investment of manpower, material resources and financial resources and high maintenance cost exist, so that a new process and a new technology which can replace low coal mine gas treatment cost and matched high-performance mining mechanical equipment need to be found urgently, and therefore, the chain plate type coal seam cutting device is necessary to be researched based on the new technology and the matched high-performance mining mechanical equipment.

Disclosure of Invention

Defect and problem to the existing equipment existence, the utility model provides a chain slat type coal seam cutting device, the effectual coal seam exploitation degree of difficulty that exists among the existing equipment of having solved is big, problem that the input cost is high.

The utility model provides a scheme that its technical problem adopted is: a chain plate type coal seam cutting device comprises a traveling driving mechanism, a chain plate type circulating digging cutter and a driving ejector rod; the walking driving mechanism comprises a walking platform, a driving motor or a hydraulic motor and a driving box, wherein the driving motor or the hydraulic motor is arranged on the walking platform, an output rotating shaft of the driving motor or the hydraulic motor is in transmission connection with an input shaft of the driving box, and a driving shaft is arranged on the driving box; the chain plate type circulating digging cutter comprises a chain plate, a shaft bracket, a main driving wheel, a secondary driving wheel and a digging cutter; a main driving wheel and a driven wheel are arranged at two ends of the shaft frame, the main driving wheel is in transmission connection with the driving shaft, the chain plate is sleeved on the main driving wheel and the driven wheel, and digging knives are arranged on the outer sides of the chain plate; the shaft frame is provided with a top plate in an outward extending mode, the top plate is close to the driven wheel, and the driving end of the driving ejector rod is fixed to the top plate.

Furthermore, the main driving wheel and the auxiliary driving wheel are belt wheels or gears, and the inner part of each chain plate is in a belt shape or a tooth shape.

Furthermore, a walking crawler belt is arranged on the walking platform, a supporting oil cylinder is arranged on the walking platform along the vertical direction, a supporting seat is arranged on the upper portion of the supporting oil cylinder, and the driving motor or the hydraulic motor and the driving box are arranged on the supporting seat.

Furthermore, the chain plate type circulating digging cutter is provided with a plurality of layers at intervals, the top plate is connected with the adjacent shaft brackets, and the driving end of the driving ejector rod is fixed on the top plate.

Furthermore, the driving ejector rod is a hydraulic ejector rod or a drill rod of a drilling machine.

The utility model has the advantages that: the utility model discloses lie in constructing at single tunnel working face, reduced the work load in tunnelling tunnel in the pit, equipment structure is simple, the convenient coal seam gas of extraction, the characteristics that improve the security compare with traditional anti-reflection method, reduce the intensity of labour and the gas drainage cycle of drilling construction, also eliminated the gas drainage "blank area" that the drilling orbit skew brought simultaneously, improved the validity of outburst prevention effect.

The utility model discloses mainly be applied to single tunnel, cut improvement coal seam from the unilateral, utilize walking actuating mechanism to provide rotation and propulsive power forward for chain slat type circulation digging cutter in the tunnel promptly from the outside, utilize driving motor or hydraulic motor and drive case to provide rotation power promptly, the removal function that utilizes walking platform drives chain slat type circulation digging cutter and impels forward, cut the coal seam, the inside of chain slat type circulation digging cutter is the trailing end, and be provided with the roof on the inner pedestal of chain slat type circulation digging cutter, the initiative ejector pin that sets up initiative application of force on the roof, the stiff end of initiative ejector pin is in fixed state, it can push up and touch on the seam wall of cutting seam or fix on the fixing base, thereby the thrust that matches with walking actuating mechanism is exerted in the initiative of the inner of chain slat type circulation digging cutter, make chain slat type circulation digging cutter can be stabilized and cut the coal seam.

The utility model discloses well link joint is as the part of being connected with the drive wheel transmission, can adopt friction drive or gear drive between the two, its outside interval distribution's digging cutter is the right angled triangle structure, its long right-angle limit is fixed position, its short right-angle limit is for tunnelling and carrying the position, utilize the link joint to drive the digging cutter and continuously rotate, and utilize the digging cutter to excavate the coal seam at the rotation in-process, the cinder of production exists temporarily and holds the intracavity that forms between the hypotenuse of the short right-angle limit of digging cutter and front end digging cutter, carry out cutting joints along with the rotation of link joint.

The utility model lies in that full coal seam slot process and equipment embodiment, to cutting the coal seam in the unilateral tunnel, walking actuating mechanism and initiative ejector pin have been set up respectively at the inside and outside both ends of chain slat type circulation digging cutter, provide the helping hand to chain slat type circulation digging cutter from both sides, saw the seam to the coal seam, coal seam gas permeability has greatly been improved, reduce the intensity of labour and the gas extraction cycle of drilling construction, adopt chain slat type circulation digging cutter to cut out one gap to the coal seam, to the permeability-increasing of coal seam release, toward outer row coal during this kind of new gas control process spiral cutter slot mode and slot, and intelligent operating equipment, construction safety in the pit is improved.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic structural view of the travel driving mechanism.

Fig. 3 is a schematic structural view of the chain plate type circulating digging cutter.

Fig. 4 is a schematic view of the structure of the usage state of the present invention.

Fig. 5 is a side view of the chain plate type circulating digging cutter.

The reference numbers in the figures are: the device comprises a walking platform 1, a driving motor or a hydraulic motor 2, a driving box 3, a driving shaft 4, a chain plate type circulating digging cutter 5, a chain plate 51, a digging cutter 52, a main driving wheel 53, a driven driving wheel 54, a driving ejector rod 6 and a top plate 7.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example 1: this embodiment aims at providing a chain slat type coal seam cutting device, and the construction of mainly used single tunnel working face for cutting the improvement coal seam, produce the cutting joint, to current improvement coal seam construction methods, the coal seam exploitation degree of difficulty is big, and the input cost is high, and based on this, this embodiment provides a chain slat type coal seam cutting device.

As shown in fig. 1, a chain plate type coal seam cutting device comprises a walking driving mechanism, a chain plate type circulating digging cutter 5 and a driving ejector rod 6; the embodiment is directed at the unilateral tunnel and cuts the coal seam, the walking driving mechanism walks in the unilateral tunnel, the outer end of the chain plate type circulating digging cutter 5 is in transmission connection with the walking driving mechanism, the main body of the chain plate type circulating digging cutter goes deep into the coal seam, the inner end of the chain plate type circulating digging cutter can be propped by the driving ejector rod 6, namely, the power and driving walking structure is arranged outside the chain plate type circulating digging cutter 5, and the telescopic propping structure is arranged outside the chain plate type circulating digging cutter, so that the chain plate type circulating digging cutter can keep a basically horizontal state to cut the coal seam.

The walking driving mechanism comprises a walking platform 1, a driving motor or a hydraulic motor 2 and a driving box 3, wherein the driving motor or the hydraulic motor 2 is installed on the walking platform 1, an output rotating shaft of the driving motor or the hydraulic motor is in transmission connection with an input shaft of the driving box 3, and a driving shaft 4 is arranged on the driving box 3.

For realizing the walking function, be provided with the walking track on walking platform 1 in this embodiment, install the support cylinder along vertical setting on walking platform 1, upper portion at support cylinder is provided with the supporting seat, driving motor or hydraulic motor 2 and drive box 3 install on the supporting seat, the support frame is fixed in one side of supporting seat, when implementing, can utilize the height of support cylinder adjustment supporting seat, carry out the adjustment of adaptability to the height of chain plate formula circulation digging cutter, make its and the highly matched of cutting joints.

During implementation, as shown in fig. 2, the driving motor or the hydraulic motor 2 is in transmission connection with the driving box 3 through the speed reducer, the driving motor or the hydraulic motor 2, the speed reducer and the driving box are all installed on the supporting seat, the supporting frame is fixed on one side of the supporting seat, the end of the supporting seat is further provided with an operating workbench, and the operating workbench is provided with an intelligent display screen and a display instrument.

As shown in fig. 3, the flight type circulating cutting blade 5 includes a link plate 51, a pedestal, a main driving wheel 53, a sub driving wheel 54, and a cutting blade 52; a main driving wheel 53 and a driven driving wheel 54 are arranged at two ends of the shaft bracket, the main driving wheel 53 is in transmission connection with the driving shaft 4, a chain plate 51 is sleeved on the main driving wheel 53 and the driven driving wheel 54, and digging knives 52 are arranged on the outer sides of the chain plate; a top plate 7 extends outwards on the shaft bracket, the top plate 7 is close to the driven wheel 54, and the driving end of the driving mandril 6 is fixed on the top plate 7.

In the implementation of the embodiment, the driving ejector rod 6 is a hydraulic ejector rod or a drill rod, and the driving telescopic function of the driving ejector rod is utilized to provide driving ejection power at the inner end part of the chain plate type circulating digging cutter 5, which is deep into the coal seam, so that the digging cutter on the chain plate type circulating digging cutter can be in contact with the coal seam, and the cutting efficiency is improved.

The embodiment mainly aims at a single working face roadway, when the single working face roadway is used, a working face is formed by tunneling a coal seam, the working face is constructed at a certain distance outside a stoping line of the working face, the working face is pushed forwards by a crawler belt, a driving motor or a hydraulic motor drives a main driving wheel to drive a circulating chain plate, a digging cutter embedded on the chain plate is used, and the other side of the digging cutter utilizes an ejector rod support to provide assistance force for the chain plate to saw and open a seam to the coal seam so as to keep tunneling forwards.

The sawing and mining thickness can be controlled to be about 200mm, the sawing and mining thickness is not too large, coal and gas outburst accidents are prevented during sawing and mining, after the coal seam is sawn and mined by the spiral cutting blade, a space for displacement and expansion deformation is formed for coal bodies outside the soft layering layer, so that coal body cracks are increased, desorption and emission of gas are accelerated, high-concentration gas in the sawing and mining crack space is extracted by using the gas extraction pipe, pressure relief extraction of the gas in the coal bodies in the mining section is realized, and the purpose of standard-reaching safe production of the gas is achieved.

Example 2: this example is substantially the same as example 1, except that: the present embodiment further illustrates the structure of the chain plate type circulating digging cutter.

In this embodiment, the main driving wheel 53 and the auxiliary driving wheel 54 are belt wheels or gears, and the chain plate 51 is belt-shaped or toothed; the 52 digging cutter is a right-angled triangular convex structure, and the long right-angle side of the digging cutter is fixed on a chain plate.

In a specific structure, a digging cutter 52 is in a right-angled triangular convex structure, the long right-angled edge of the digging cutter is fixed on a chain plate 51 to realize transmission connection, in a specific transmission mode, a main driving wheel 53 and a driven driving wheel 54 are belt wheels or gears, the chain plate in the chain plate type circulating digging cutter is used as a part in transmission connection with the driving wheels, friction transmission or gear transmission can be adopted between the belt wheels and the gears, namely, the belt wheels adopt friction transmission, the gears adopt meshing transmission, the digging cutters distributed at intervals on the outer side of the digging cutter are in the right-angled triangular structure, the long right-angled edge of the digging cutter is a fixed part, the short right-angled edge of the digging cutter is a tunneling and conveying part, the digging cutter is driven to continuously rotate by the chain plate, the coal seam is dug by the digging cutter in the rotating process, and generated coal slag is temporarily stored in a containing cavity formed between the short right-angled edge of the digging cutter and the bevel edge of the front-end digging cutter, and is conveyed out of a cutting seam along with the rotation of the chain plate.

Example 3: this example is substantially the same as example 1, except that: the present embodiment further illustrates the arrangement of the chain plate type circulating digging cutter.

As shown in fig. 5, in the present embodiment, the chain plate type circulating digging cutters 5 are arranged at intervals in multiple layers, the top plate 7 is vertically arranged and fixedly connected with the adjacent shaft brackets, and the driving end of the driving mandril 6 is fixed on the top plate 7.

This embodiment can the different thickness's of adaptation cutting joints, and upper chain slat type circulation digging cutter and lower floor chain slat type circulation digging cutter cut the coal seam simultaneously, form thinner coal seam between the two, can break naturally to from the chain slat type circulation digging cutter department of lower floor cutting joints.

Claims

1. The utility model provides a chain slat type coal seam cutting device which characterized in that: comprises a walking driving mechanism, a chain plate type circulating digging cutter and a driving ejector rod; the walking driving mechanism comprises a walking platform, a driving motor or a hydraulic motor and a driving box, wherein the driving motor or the hydraulic motor is arranged on the walking platform, an output rotating shaft of the driving motor or the hydraulic motor is in transmission connection with an input shaft of the driving box, and a driving shaft is arranged on the driving box; the chain plate type circulating digging cutter comprises a chain plate, a shaft frame, a main driving wheel, a secondary driving wheel and a digging cutter; a main driving wheel and a driven driving wheel are arranged at two ends of the shaft frame, the main driving wheel is in transmission connection with a driving shaft, the chain plate is sleeved on the main driving wheel and the driven driving wheel, and digging knives are arranged on the outer sides of the chain plate; and a top plate extends outwards from the shaft frame, the top plate is close to the driven wheel, and the driving end of the driving ejector rod is fixed on the top plate.

2. The slat type coal seam cutting device according to claim 1, wherein: the main driving wheel and the auxiliary driving wheel are belt wheels or gears, and the inner part of each chain plate is in a belt shape or a tooth shape.

3. The slat type coal seam cutting device according to claim 1, wherein: the walking platform is provided with a walking crawler belt, the walking platform is provided with a supporting oil cylinder vertically arranged, the upper part of the supporting oil cylinder is provided with a supporting seat, and the driving motor or the hydraulic motor and the driving box are arranged on the supporting seat.

4. The chain slat type coal seam cutting device of claim 1, wherein: the chain plate type circulating digging cutter is provided with a plurality of layers at intervals, the top plate is connected with the adjacent shaft brackets, and the driving end of the driving ejector rod is fixed on the top plate.

5. The slat type coal seam cutting device according to claim 1, wherein: the driving ejector rod is a hydraulic ejector rod or a drill rod of a drilling machine.