阅读说明：本技术 一种工作面推进度自动测量系统 (Working face propulsion degree automatic measuring system ) 是由 应永华 张成龙 俞佳枫 余庭 于 2020-12-29 设计创作，主要内容包括：本发明公开了一种工作面推进度自动测量系统,包括刮板机和多个液压支架,所述的刮板机包括顺次连接的多节溜槽,部分或所有所述的溜槽的一侧通过连接杆连接有激光测距仪,所述的激光测距仪位于所述的溜槽的斜上方并用于检测其与煤壁之间的距离,所述的溜槽的数量与所述的液压支架的数量相等且一一对应,所述的液压支架的底座通过直线驱动机构与所述的溜槽的一侧连接；优点是能够准确测量工作面推进距离,方便进行各项统计工作,以及为下一步的工作做准备。(The invention discloses a working face propulsion degree automatic measuring system which comprises a scraper and a plurality of hydraulic supports, wherein the scraper comprises a plurality of chutes which are connected in sequence, one side of part or all of the chutes is connected with a laser range finder through a connecting rod, the laser range finder is positioned above the chute in an inclined way and is used for detecting the distance between the laser range finder and a coal wall, the number of the chutes is equal to that of the hydraulic supports and corresponds to that of the hydraulic supports one by one, and the base of the hydraulic support is connected with one side of the chute through a linear driving mechanism; the method has the advantages that the propelling distance of the working face can be accurately measured, various statistical works can be conveniently carried out, and preparation is made for the next work.)

1. The utility model provides a working face impels degree automatic measuring system, includes scrapes trigger and a plurality of hydraulic support, its characterized in that scrape trigger including the multisection chute that connects in order, some or all one side of chute be connected with laser range finder through the connecting rod, laser range finder be located the oblique top of chute and be used for detecting its and the coal wall between the distance, the chute quantity with hydraulic support's quantity equal and the one-to-one, hydraulic support's base pass through sharp actuating mechanism with one side of chute be connected.

2. The automatic measuring system for the propelling degree of a working face according to claim 1, wherein the laser range finder comprises a shell, and a circuit board and a detecting head which are arranged in the shell, wherein a through hole for emitting laser of the detecting head is formed in one side, facing a coal wall, of the shell, the detecting head is electrically connected with the circuit board, the circuit board is connected with a controller of the hydraulic support in a wireless transmission mode, and the shell is detachably connected with one side of the chute through the connecting rod.

3. The automatic measuring system for the propelling degree of a working face according to claim 2, characterized in that the connecting rod is arranged in an L shape, one end of the connecting rod is integrally provided with a first connecting plate which is in contact with the lower end face of the housing, the first connecting plate is provided with a plurality of first through holes, the other end of the connecting rod is integrally provided with a second connecting plate which is in contact with one side of the chute, the second connecting plate is provided with a plurality of second through holes, the lower end face of the housing is provided with a plurality of third through holes which are equal in number to the first through holes, one side of the chute is provided with a plurality of fourth through holes which are equal in number to the second through holes, and a first bolt passes through the first through holes and the third through holes to connect and fix the housing and the connecting rod, and a second bolt penetrates through the second through hole and the fourth through hole to connect and fix the chute and the connecting rod.

4. An automatic measuring system for the degree of advancement of a work surface as defined in claim 3, wherein said first perforations and said second perforations are arcuate holes, respectively, all of said first perforations being circumferentially equally spaced and all of said second perforations being circumferentially equally spaced.

5. An automatic measuring system for the degree of advancement of a work surface as defined in claim 3, wherein said third apertures and said fourth apertures are arcuate apertures, all of said third apertures being circumferentially equally spaced and all of said fourth apertures being circumferentially equally spaced.

6. The automatic measuring system for the propelling degree of a working face as claimed in claim 3, wherein a positioning column is arranged on the lower end face of the shell, a positioning groove matched with the positioning column is arranged on the first connecting plate, and the positioning column is inserted into the positioning groove.

7. An automatic measuring system for the degree of advancement of a work surface as defined in claim 1, comprising the following measuring steps:

s1: the controller of the hydraulic support sends a push-sliding instruction to the laser range finder on the chute corresponding to the push-sliding instruction, and the laser range finder is started;

s2: the laser range finder detects the distance between the laser range finder and the coal wall, the distance is D1, and the detection result is returned to the controller of the hydraulic support;

s3: the chute is driven to move towards the direction of the coal wall by the linear driving mechanism;

s4: after the chute is pushed, the laser range finder is started again and detects the distance between the laser range finder and the coal wall, wherein the distance is D2, and the detection result is returned to the controller of the hydraulic support;

s5: and the controller of the hydraulic support subtracts the detection results returned twice to obtain the actual pushing distance of the chute at this time.

Technical Field

The invention belongs to the technical field of coal mining equipment, and particularly relates to an automatic measuring system for the propelling degree of a working face.

Background

The coal mining device comprises a scraper machine extending transversely, a movable coal digging head arranged on the scraper machine and a plurality of hydraulic supports arranged on one side of the scraper machine, the hydraulic supports are connected with the scraper machine through oil cylinders, the coal digging head transversely cuts the coal wall of the working face, the scraper machine is pushed forwards through the oil cylinders after cutting, the coal digging head on the scraper machine can be in contact with the coal wall of the working face again, the coal wall of the working face is cut repeatedly through the coal digging head, and the purpose of coal mining is achieved.

After cutting is completed each time, the thickness of the cut working face needs to be known, the distance to be pushed subsequently by the scraper is calculated according to the thickness, and various statistical work is conveniently carried out. The existing measuring methods are of two types, firstly, manual measurement is carried out when a person enters a mine hole, the manual measurement workload is very large, the efficiency is low, the distance between the two transverse ends of the coal wall of a working face and a scraper conveyor can only be measured, the distance between the middle position of the coal wall of the working face and the scraper conveyor cannot be measured, and the measurement error is large; secondly, the conversion is carried out by detecting the stroke of the oil cylinder through a stroke sensor, but the oil cylinder has two processes of extension and contraction, and the stroke sensor cannot accurately distinguish the two processes, so that the stroke of the oil cylinder is difficult to accurately accumulate, and larger errors exist.

Disclosure of Invention

The invention aims to solve the technical problem of providing an automatic measuring system for the propelling degree of a working face, which can accurately measure the propelling distance of the working face.

The technical scheme adopted by the invention for solving the technical problems is as follows: the utility model provides a working face impels degree automatic measuring system, includes and scrapes trigger and a plurality of hydraulic support, scrape trigger including the multisection chute that connects in order, part or all one side of chute be connected with laser range finder through the connecting rod, laser range finder be located the oblique top of chute and be used for detecting its and the coal wall between the distance, the chute quantity with hydraulic support's quantity equal and one-to-one, hydraulic support's base pass through sharp actuating mechanism with one side of chute be connected.

The laser range finder comprises a shell, and a circuit board and a detecting head which are arranged in the shell, wherein a through hole for emitting laser of the detecting head is formed in one side, facing a coal wall, of the shell, the detecting head is electrically connected with the circuit board, the circuit board is connected with a controller of the hydraulic support in a wireless transmission mode, and the shell is detachably connected with one side of the chute through a connecting rod. In this structure, the casing is used for protecting detecting head and circuit board, avoids bumping between detecting head, circuit board and the colliery and damages, is favorable to prolonging the life of detecting head, circuit board, and the circuit board is connected with hydraulic support's controller through wireless transmission's mode simultaneously, compares in wired connection, more is fit for using in the mine.

The connecting rod is arranged in an L shape, one end of the connecting rod is integrally provided with a first connecting plate which is contacted with the lower end surface of the shell, the first connecting plate is provided with a plurality of first through holes, the other end of the connecting rod is integrally provided with a second connecting plate which is contacted with one side of the chute, the second connecting plate is provided with a plurality of second through holes, the lower end surface of the shell is provided with a plurality of third through holes with the same number as the first through holes, one side of the chute is provided with a plurality of fourth through holes with the same number as the second through holes, a first bolt penetrates through the first through holes and the third through holes to fixedly connect the shell with the connecting rod, a second bolt penetrates through the second through holes and the fourth through holes to fixedly connect the chute with the connecting rod, the connection stability of the structure is better.

The first through holes and the second through holes are arc-shaped holes respectively, all the first through holes are distributed at equal intervals along the circumferential direction, and all the second through holes are distributed at equal intervals along the circumferential direction. In this structure, be the arc hole through perforating first perforation, the setting of second, when not fixed through bolted connection, rotatable casing or connecting rod are fixed with angle regulation, and rethread bolted connection after the regulation is accomplished is fixed, and the flexibility is better.

The third through holes and the fourth through holes are arc-shaped holes respectively, all the third through holes are distributed at equal intervals along the circumferential direction, and all the fourth through holes are distributed at equal intervals along the circumferential direction. In this structure, be the arc hole through perforating the third, the setting of fourth perforation, when not fixed through bolted connection, rotatable casing or connecting rod are fixed with angle regulation, and rethread bolted connection after the regulation is accomplished is fixed, and the flexibility is better.

The lower end face of the shell is provided with a positioning column, the first connecting plate is provided with a positioning groove matched with the positioning column, and the positioning column is inserted into the positioning groove. In this structure, during the assembly earlier with the reference column cartridge to the constant head tank in, then first bolt passes first perforation, the third is perforated to be connected the casing with the connecting rod fixedly, convenient assembly.

An automatic measuring system for the propelling degree of a working face comprises the following measuring steps:

s1: the controller of the hydraulic support sends a push-sliding instruction to the laser range finder on the chute corresponding to the push-sliding instruction, and the laser range finder is started;

s2: the laser range finder detects the distance between the laser range finder and the coal wall, the distance is D1, and the detection result is returned to the controller of the hydraulic support;

s3: the chute is driven to move towards the direction of the coal wall by the linear driving mechanism;

s4: after the chute is pushed, the laser range finder is started again and detects the distance between the laser range finder and the coal wall, wherein the distance is D2, and the detection result is returned to the controller of the hydraulic support;

s5: and the controller of the hydraulic support subtracts the detection results returned twice to obtain the actual pushing distance of the chute at this time.

Compared with the prior art, the chute pushing device has the advantages that the laser distance measuring instrument is arranged on the chute, the distance between the chute and the coal wall is detected once before the chute is pushed to slide, the distance between the chute and the coal wall is detected once after the chute is pushed to slide, the actual pushing distance of the chute is obtained by subtracting the detection results of the two times, so that manual measurement is omitted, the workload is low, the efficiency is high, the measurement accuracy can be effectively improved, correspondingly, the hourly pushing progress, the daily pushing progress and the monthly pushing progress counted according to the detection results are accurate, the error is small, various counting works can be conveniently and accurately carried out, and preparation is made for the next work.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a first partial schematic view of the present invention;

FIG. 3 is a second partial schematic view of the present invention;

FIG. 4 is a schematic illustration of a partial explosion configuration of the present invention;

FIG. 5 is a schematic circuit diagram of the present invention;

fig. 6 is a schematic structural view of the connecting rod of the present invention.

In the figure: 1. a scraper machine; 11. a chute; 12. a fourth perforation; 2. a hydraulic support; 21. a controller; 3. a laser range finder; 31. a housing; 311. a through hole; 312. a third perforation; 313. a positioning column; 32. a circuit board; 33. a probe head; 4. a connecting rod; 41. a first connecting plate; 42. a first perforation; 43. a second connecting plate; 44. a second perforation; 45. positioning a groove; 5. a linear drive mechanism; 6. coal walls.

Detailed Description

The invention is described in further detail below with reference to the accompanying examples.

The first embodiment is as follows: as shown in the figure, the automatic measuring system for the propelling degree of the working face comprises a scraper conveyor 1 and a plurality of hydraulic supports 2, the scraper conveyor 1 comprises a plurality of sections of chutes 11 which are connected in sequence, one side of part or all of the chutes 11 is connected with a laser range finder 3 through a connecting rod 4, the laser range finder 3 is located obliquely above the chutes 11 and used for detecting the distance between the chute and a coal wall 6, the number of the chutes 11 is equal to that of the hydraulic supports 2 and corresponds to that of the chutes one to one, a base of each hydraulic support 2 is connected with one side of each chute 11 through a linear driving mechanism 5, one chute 11, one linear driving mechanism 5 and one hydraulic support 2 form a propelling unit, and adjacent chutes 11 are connected through chain plates (not shown in the figure).

In this embodiment, the laser range finder 3 includes a housing 31, and a circuit board 32 and a probe 33 that are disposed in the housing 31, wherein a through hole 311 for emitting laser of the probe 33 is disposed on one side of the housing 31 facing the coal wall 6, the probe 33 is electrically connected to the circuit board 32, the circuit board 32 is connected to the controller 21 of the hydraulic support 2 in a wireless transmission manner, and the housing 31 is detachably connected to one side of the chute 11 through a connecting rod 4.

In this embodiment, the linear driving mechanism 5 is a conventional oil cylinder on the market, a cylinder body of the oil cylinder is fixedly arranged on the base of the hydraulic support 2, and a telescopic rod of the oil cylinder is fixedly connected with the chute 11.

If one laser range finder 3 is respectively arranged on one side of each chute 11, the detection accuracy is very high, but the cost is also high; if one side of partial chute 11 is respectively provided with one laser range finder 3, all the laser range finders 3 are distributed at equal intervals along the length direction of the scraper conveyor 1, if six chutes 11 are arranged between adjacent laser range finders 3, the detection accuracy is reduced, the cost is relatively low, and the method is particularly determined according to actual conditions.

Example two: the rest of the structure is the same as that of the first embodiment, except that the connecting rod 4 is arranged in an L shape, one end of the connecting rod 4 is integrally provided with a first connecting plate 41 contacting with the lower end face of the housing 31, the first connecting plate 41 is provided with a plurality of first through holes 42, the other end of the connecting rod 4 is integrally provided with a second connecting plate 43 contacting with one side of the chute 11, the second connecting plate 43 is provided with a plurality of second through holes 44, the lower end face of the housing 31 is provided with a plurality of third through holes 312 which are equal in number to the first through holes 42 and correspond to one another, one side of the chute 11 is provided with a plurality of fourth through holes 12 which are equal in number to the second through holes 44 and correspond to one another, a first bolt (not shown in the figure) passes through the first through holes 42 and the third through holes 312 to connect and fix the housing 31 and the connecting rod 4, a second bolt (not shown in the figure), the chute 11 is fixedly connected with the connecting rod 4 through a fourth through hole 12.

Example three: the remaining portions are the same as those of the embodiment, except that the first through holes 42 and the second through holes 44 are arc-shaped holes, all the first through holes 42 are distributed at equal intervals along the circumferential direction, and all the second through holes 44 are distributed at equal intervals along the circumferential direction.

In this embodiment, the third through holes 312 and the fourth through holes 12 are arc-shaped holes, all the third through holes 312 are distributed at equal intervals along the circumferential direction, and all the fourth through holes 12 are distributed at equal intervals along the circumferential direction.

In this embodiment, a positioning column 313 is disposed on a lower end surface of the casing 31, a positioning groove 45 adapted to the positioning column 313 is disposed on the first connecting plate 41, the positioning column 313 is inserted into the positioning groove 45, the positioning column 313 is located at a center position of all the third through holes 312, and the positioning column 313 is cylindrical, so that when the casing 31 and the first connecting plate 41 are not fixedly connected, the casing 31 can rotate around an axis of the positioning column 313.

The working face propulsion degree automatic measuring system disclosed by the embodiment comprises the following measuring steps:

s1: the controller 21 of the hydraulic support 2 sends a push-sliding instruction to the laser range finder 3 on the chute 11 corresponding to the push-sliding instruction, and the laser range finder 3 is started;

s2: the laser range finder 3 detects the distance between the laser range finder and the coal wall 6, the distance is D1, and the detection result is returned to the controller 21 of the hydraulic support 2;

s3: the chute 11 is driven to move towards the coal wall 6 by the linear driving mechanism 5;

s4: after the chute 11 is pushed, the laser distance measuring instrument 3 is started again and detects the distance between the chute and the coal wall 6, wherein the distance is D2, and the detection result is returned to the controller 21 of the hydraulic support 2;

s5: the controller 21 of the hydraulic support 2 subtracts the detection results from the two returns to obtain the actual moving distance of the chute 11 at the current time.