CN111197485A - Supporting device for fast tunneling and anchoring of breakable coal seam - Google Patents
Supporting device for fast tunneling and anchoring of breakable coal seam Download PDFInfo
- Publication number
- CN111197485A CN111197485A CN201811372707.XA CN201811372707A CN111197485A CN 111197485 A CN111197485 A CN 111197485A CN 201811372707 A CN201811372707 A CN 201811372707A CN 111197485 A CN111197485 A CN 111197485A
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- Prior art keywords
- rotating shaft
- transmission rotating
- belt
- roller
- machine
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C35/00—Details of, or accessories for, machines for slitting or completely freeing the mineral from the seam, not provided for in groups E21C25/00 - E21C33/00, E21C37/00 or E21C39/00
- E21C35/04—Safety devices
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Earth Drilling (AREA)
Abstract
The invention discloses a matching device for fast tunneling and anchoring of an easily-broken coal seam, which mainly comprises a machine body, a cutting device, a hydraulic device, a shield beam and the like, wherein a transmission rotating shaft I is additionally arranged on the outer side of a track guiding and tensioning device at the lower part of the tunneling machine, a belt guiding and tensioning device is arranged on the machine body, a roller capable of mounting a wire netting is arranged at the joint of the hydraulic device and the shield beam, the roller is arranged on a transmission rotating shaft III, the transmission rotating shaft I is connected with one side of a transmission rotating shaft II on the belt guiding and tensioning device through a belt I, the other side of the transmission rotating shaft II is connected with a transmission rotating shaft III driving the roller to rotate through the belt II, and a hydraulic drilling machine for fixing an anchor rope (rod) is also fixed on the machine body. The invention can drive the iron net to automatically lay above the roadway by the advancing of the crawler belt, and anchor and protect in time, thereby being safe and time-saving and greatly improving the working efficiency.
Description
Technical Field
The invention relates to the field of mining equipment, relates to a heading machine, and particularly relates to a matching device for rapid heading and anchoring protection of an easily-broken coal seam.
Background
At present, the underground mining of coal mines is generally used along with a comprehensive mechanical tunneling machine (a fully-mechanized tunneling machine for short), and the efficiency of roadway tunneling is greatly improved compared with the traditional operation mode of 'drilling and blasting'. However, under the influence of the rock conditions of the top plate of the roadway, especially during coal roadway excavation, when the top plate coal seam is easy to break, the pressure of the top plate of the coal seam is high, the coal wall caving is easy to occur at the head-on position, and great potential safety hazards exist. In order to ensure the operation safety, the prior measures are that advance anchor rods are supported on two sides, and a protective net is hung at the head of the anchor rods. However, the problem of this method is that firstly, there is a risk of empty roof operation when installing the leading anchor rod head on; secondly, a process of supporting the advanced anchor rod is added, the cycle operation time is prolonged, and the production efficiency is reduced; and thirdly, the waste of supporting materials and labor cost is caused, the requirement of lean production is not met, the intermittent and continuous circular operation is generally adopted at present, the efficiency is low, and the advantage of the comprehensive tunneling machine cannot be exerted in the tunneling operation.
In the prior art, the support work of the fully mechanized excavating machine after the roadway excavation is hard, complex and low in efficiency, and the main reason is that the tunneling machine and the bolting machine work in a split mode to cause a large amount of time waste, and the effective working time proportion is small; the manual bolting is high in labor intensity, and a large number of required personnel are needed, so that a machine-mounted bolting rig is very needed to be capable of quickly carrying out bolting work during or after tunneling of the tunneling machine, so that the working efficiency of the tunneling machine is improved, the labor intensity of an operator is reduced, and the production safety of a coal mine is improved.
The patent publication No. CN101251022A discloses a comprehensive excavating machine and time supporting device, which comprises a base, a top beam, a hydraulic upright column and a side frame, wherein the base and the top beam are parallel to each other in the axis and are in the same plane, the hydraulic upright column is connected between the top beam and the base, and the side frame is composed of a four-bar linkage mechanism. The top beam of the side frame can adopt a front top beam consisting of a sliding top beam and a guiding top beam or a continuous top beam consisting of only a fixed top beam according to actual requirements. The timely supporting device of the fully-mechanized excavating machine effectively solves the problems that supporting means are backward, moving is difficult, shutdown operation is needed, efficiency is low and the like in the prior art, completely meets the using conditions of timely supporting on site, better meets the requirement of supporting and matching operation of underground roadway supporting and the fully-mechanized excavating machine, but the section of the existing roadway is basically divided into three shapes when in excavation: one is a rectangular section, one is an arched section, and the other is an opposite section. The opposite section is the tunnel section shape when tunnel roof and bottom plate become certain angle, so to foretell special-shaped tunnel section, this patent technical scheme still lacks nimble adaptability, influences and struts quality and operating efficiency.
Therefore, research and development can be in time anchored and protected the device after the tunnelling, can solve the problem that exists in the mine production, improve mine production efficiency, guarantee workman's safety becomes the problem that awaits a urgent need to be solved.
Disclosure of Invention
In order to overcome the defects, the invention aims to solve the problems of high supporting difficulty and low efficiency caused by easy crushing of a roof coal bed or a roof rock stratum after roadway tunneling.
The technical scheme of the invention is as follows: a supporting device for rapid tunneling and anchoring of a breakable coal seam mainly comprises a machine body (1), a cutting device (5), a hydraulic device (7), a shield beam (6) and the like, a transmission rotating shaft I (14) is additionally arranged on the outer side of a track guiding and tensioning device (4) at the lower part of the development machine, a belt guide tensioning device (9) is arranged on the machine body (1), a roller (10) capable of installing a wire netting (11) is arranged at the joint of a hydraulic device (7) and a shield beam (6), the roller (10) is arranged on a transmission rotating shaft III (16), a transmission rotating shaft I (14) is connected with one side of a transmission rotating shaft II (15) on the belt guide tensioning device (9) through a belt I (3), the other side of the transmission rotating shaft II (15) is connected with a transmission rotating shaft III (16) driving the roller (10) to rotate through a belt II (8), a hydraulic drilling machine (13) for fixing an anchor cable (rod) (12) is also fixed on the machine body (1).
Furthermore, the transmission ratio among the transmission rotating shaft I (14), the transmission rotating shaft II (15) and the transmission rotating shaft III (16) meets the condition that the advancing distance of the crawler belt (2) is equal to the unfolding distance of the wire netting (11).
Furthermore, the roller (10) is connected with the hydraulic device (7) through an external support and a shield beam (6), and the roller (10) is fixed on a transmission rotating shaft III (16) through a flange plate (17).
The supporting device for the rapid excavation and anchoring of the breakable coal seam, which is provided by the technical scheme, has the beneficial effects that the supporting device is a novel device developed on the basis of fully investigating the problems existing in underground production and the prior technical conditions, the device can be used for supporting the exposed coal seam in time after excavation, so that the empty roof operation is prevented, meanwhile, the technical structure is simple and reasonable, the realization is easy, and the production efficiency can be improved while the safe production is ensured.
Drawings
FIG. 1 is a schematic side view of a mold according to the present invention.
Fig. 2 is a schematic view of the connection mode of the transmission shafts of the present invention.
FIG. 3 is a schematic view of the connection between the drum (10) and the transmission shaft III (16) according to the present invention.
In the figure: 1. a body; 2. a crawler belt; 3. a belt I; 4. a track guide tensioner; 5. a cutting device; 6. covering the beam; 7. a hydraulic device; 8. a belt II; 9. a belt guide tensioner; 10. a drum; 11. a wire mesh; 12. anchor cables (rods); 13. a hydraulic drilling machine; 14. a transmission rotating shaft I; 15. a transmission rotating shaft II; 16. a transmission rotating shaft III; 17. a flange plate.
Detailed Description
The invention is further described below with reference to the accompanying drawings: as shown in figure 1, the device mainly comprises a machine body (1), a cutting device (5), a hydraulic device (7), a shield beam (6) and the like, as shown in figure 2, a transmission rotating shaft I (14) is additionally arranged on the outer side of a track guiding and tensioning device (4) at the lower part of the heading machine, a belt guiding and tensioning device (9) is arranged on the machine body (1), a roller (10) capable of installing a wire netting (11) is arranged at the joint of the hydraulic device (7) and the shield beam (6), as shown in figure 3, the roller (10) is arranged on a transmission rotating shaft III (16), the transmission rotating shaft I (14) is connected with one side of a transmission rotating shaft II (15) on the belt guiding and tensioning device (9) through a belt I (3), the other side of the transmission rotating shaft II (15) is connected with a transmission rotating shaft (16) which drives the roller (10) to rotate through a belt II (8), a hydraulic drilling machine (13) for fixing an anchor cable (rod) (12) is also fixed on the machine body (1).
When the device is used, the coal body or the rock body is crushed along with the cutting device (5), the shield beam (6) is descended for a certain distance by using the hydraulic device (7), the crawler (2) drives the machine body (1) to move forwards, the crawler guide tensioning device (4) drives the transmission rotating shaft I (14) to rotate, meanwhile, the belt I (3) drives the transmission rotating shaft II (15) in the belt guide tensioning device (9) to rotate, the transmission rotating shaft II (15) drives the transmission rotating shaft III (16) connected with the roller (10) to rotate by using the belt II (8), so that the wire netting (11) is pulled out under the rotation of the roller (10) for the same distance as the advancing distance of the crawler (2), then the shield beam (6) is lifted by using the hydraulic device (7) to be contacted with the top plate, at the moment, the wire netting (11) is also stretched to cover the bottom of the top plate, and simultaneously, the hydraulic drilling machine (13) is used for drilling towards the top plate, anchor cables (rods) (12) are fixed in the top plate and matched with the wire mesh (11) to form temporary protection for the hollow area.
Claims (3)
1. A supporting device for rapid tunneling and anchoring of a breakable coal seam mainly comprises a machine body (1), a cutting device (5), a hydraulic device (7), a shield beam (6) and the like, a transmission rotating shaft I (14) is additionally arranged on the outer side of a track guiding and tensioning device (4) at the lower part of the development machine, a belt guide tensioning device (9) is arranged on the machine body (1), a roller (10) capable of installing a wire netting (11) is arranged at the joint of a hydraulic device (7) and a shield beam (6), the roller (10) is arranged on a transmission rotating shaft III (16), a transmission rotating shaft I (14) is connected with one side of a transmission rotating shaft II (15) on the belt guide tensioning device (9) through a belt I (3), the other side of the transmission rotating shaft II (15) is connected with a transmission rotating shaft III (16) driving the roller (10) to rotate through a belt II (8), a hydraulic drilling machine (13) for fixing an anchor cable (rod) (12) is also fixed on the machine body (1).
2. The supporting device for the rapid tunneling and anchoring of the breakable coal seam as claimed in claim 1, wherein: the transmission ratio among the transmission rotating shaft I (14), the transmission rotating shaft II (15) and the transmission rotating shaft III (16) meets the condition that the advancing distance of the crawler belt (2) is equal to the unfolding distance of the wire netting (11).
3. The supporting device for the rapid tunneling and anchoring of the breakable coal seam as claimed in claim 1, wherein: the roller (10) is connected with the hydraulic device (7) through an external support and a shield beam (6), and the roller (10) is fixed on a transmission rotating shaft III (16) through a flange plate (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811372707.XA CN111197485A (en) | 2018-11-19 | 2018-11-19 | Supporting device for fast tunneling and anchoring of breakable coal seam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811372707.XA CN111197485A (en) | 2018-11-19 | 2018-11-19 | Supporting device for fast tunneling and anchoring of breakable coal seam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111197485A true CN111197485A (en) | 2020-05-26 |
Family
ID=70744574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811372707.XA Pending CN111197485A (en) | 2018-11-19 | 2018-11-19 | Supporting device for fast tunneling and anchoring of breakable coal seam |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111197485A (en) |
-
2018
- 2018-11-19 CN CN201811372707.XA patent/CN111197485A/en active Pending
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20200526 |