CN113898360B - An adjustable multifunctional rear support device for a tunnel boring machine - Google Patents
An adjustable multifunctional rear support device for a tunnel boring machine Download PDFInfo
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- CN113898360B CN113898360B CN202111182869.9A CN202111182869A CN113898360B CN 113898360 B CN113898360 B CN 113898360B CN 202111182869 A CN202111182869 A CN 202111182869A CN 113898360 B CN113898360 B CN 113898360B
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- cylinder
- support
- oil cylinder
- supporting leg
- connecting frame
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- 239000003245 coal Substances 0.000 claims abstract description 20
- 239000011435 rock Substances 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 230000005484 gravity Effects 0.000 claims description 5
- 230000008859 change Effects 0.000 claims description 2
- 230000009194 climbing Effects 0.000 claims description 2
- 210000005069 ears Anatomy 0.000 claims 1
- 238000009412 basement excavation Methods 0.000 abstract 1
- 230000005641 tunneling Effects 0.000 description 23
- 230000007246 mechanism Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D9/00—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries
- E21D9/10—Making by using boring or cutting machines
- E21D9/1093—Devices for supporting, advancing or orientating the machine or the tool-carrier
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- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C29/00—Propulsion of machines for slitting or completely freeing the mineral from the seam
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK 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
- E21C35/08—Guiding the machine
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Excavating Of Shafts Or Tunnels (AREA)
Abstract
本发明属于煤矿掘进支护技术领域，具体是一种可调节式多功能掘进机后支撑装置。包括左支撑盘、右支撑盘以及连接架，左支撑盘和右支撑盘上分别通过左支撑腿油缸和右支撑腿油缸与支撑座连接，支撑座上安装有可以在支撑座上前后滑动的梯形运行轨道，梯形运行轨道前端与连接架的前端下部固定连接，连接架前后两端分别留有螺栓孔连接掘进机机架体的头和尾，梯形运行轨道后端顶部支通过销轴连接支撑油缸，支撑油缸另一端与连接架后端通过销轴连接；所述的支撑座与连接架前端之间还连接有左伸缩油缸以及右伸缩油缸。本发明不仅可以承受着设备自重，减小振动载荷，可以使刮板输送机或带式装载机后方翘起，从而保证机械结构的可靠性和机械设备的工作效率。
The present invention belongs to the technical field of coal mine excavation support, and is specifically an adjustable multifunctional rear support device for a tunnel boring machine. It includes a left support plate, a right support plate and a connecting frame. The left support plate and the right support plate are connected to a support seat through a left support leg oil cylinder and a right support leg oil cylinder respectively. A trapezoidal running track that can slide back and forth on the support seat is installed on the support seat. The front end of the trapezoidal running track is fixedly connected to the front lower part of the connecting frame. Bolt holes are left at the front and rear ends of the connecting frame to connect the head and tail of the tunnel boring machine frame. The top support at the rear end of the trapezoidal running track is connected to the supporting cylinder through a pin shaft, and the other end of the supporting cylinder is connected to the rear end of the connecting frame through a pin shaft; a left telescopic oil cylinder and a right telescopic oil cylinder are also connected between the support seat and the front end of the connecting frame. The present invention can not only bear the dead weight of the equipment and reduce the vibration load, but also can make the rear of the scraper conveyor or belt loader tilt up, thereby ensuring the reliability of the mechanical structure and the working efficiency of the mechanical equipment.
Description
Technical Field
The invention belongs to the technical field of coal mine tunneling support, and particularly relates to an adjustable multifunctional tunneling machine rear support device.
Background
Because of the severe underground working environment of the coal mine, the underground complex and changeable geological conditions have higher and higher requirements on the adaptability of the heading machine, and the mechanized requirements of the current rapidly-developed heading machine can be met only by improving the overall performance of the heading machine. The tunneling machine mainly comprises a cutting part, a loading part, a conveying part, a walking part, a frame, an electric appliance hydraulic control part and the like, wherein the parts complement each other, and the overall performance of the tunneling machine is determined by the performance coordination of the parts. The cantilever type heading machine is used as one of important mechanical equipment of a comprehensive heading face, has important significance for researching the working performance of the cantilever type heading machine, the frame is used as a main body of the heading machine, the performance of the cantilever type heading machine influences the working performance of the whole heading machine, and the rear supporting part is used as one of important components of the frame, is connected with a working mechanism of the heading machine and the rear supporting equipment of the tunneling machine, and plays an important role in supporting up and down. The front end of the device is connected with a development machine body to form a part of the whole machine structure, the lower end of the device is provided with a support (support leg) which supports the whole device when the device works normally to reduce vibration and slippage of the whole machine, the upper end of the device is connected with a 1 st conveyor to support the first conveyor to finish material transportation, and the rear end of the device is provided with a second conveyor return table which is used for connecting a2 nd conveyor to finish material transportation function. The rationality of the structural design of the rear supporting part and the stability of the working mechanism directly influence the working performance of the whole machine. The structure form of the rear supporting part of the development machine is researched, so that the working performance of the development machine can be improved, the design scheme of the development machine is perfected, the design quality of the development machine is improved, the design period of the development machine is shortened, and the development machine has an important effect on guiding the safe use of the development machine.
The supporting device is used as a working mechanism for supporting the heading machine, and is used for bearing the dead weight of equipment and also bearing vibration load during normal operation. For the whole machine, the vibration absorber not only has the functions of buffering and absorbing vibration and reducing damage of vibration load to a travelling part and other parts of the heading machine, but also has the functions of preventing slippage and avoiding the equipment from sliding backward or sideways during working.
Disclosure of Invention
The invention aims to solve the problems and provides an adjustable multifunctional rear supporting device of a heading machine.
The invention adopts the following technical scheme that the rear supporting device of the adjustable multifunctional tunneling machine comprises a left supporting disc, a right supporting disc and a connecting frame, wherein the left supporting disc and the right supporting disc are respectively connected with a supporting seat through a left supporting leg oil cylinder and a right supporting leg oil cylinder, a trapezoid operation track capable of sliding back and forth on the supporting seat is arranged on the supporting seat, the front end of the trapezoid operation track is fixedly connected with the lower part of the front end of the connecting frame, bolt holes are reserved at the front end and the rear end of the connecting frame respectively and are connected with the head and the tail of a frame body of the tunneling machine, the top of the rear end of the trapezoid operation track is connected with the supporting oil cylinder through a pin shaft, the other end of the supporting oil cylinder is connected with the rear end of the connecting frame through a pin shaft, and a left telescopic oil cylinder and a right telescopic oil cylinder are also connected between the supporting seat and the front end of the connecting frame.
Further, the left support leg oil cylinders are provided with three groups, including a left support leg oil cylinder I, a left support leg oil cylinder II and a left support leg oil cylinder III, and the right support leg oil cylinders are provided with three groups, including a right support leg oil cylinder I, a right support leg oil cylinder II and a right support leg oil cylinder III.
Further, the connecting frame is of a frame structure, a steel plate is arranged at the front end of the connecting frame, the middle part of the steel plate is hinged with the left telescopic oil cylinder and the right telescopic oil cylinder through connecting lugs, and the rear part of the connecting frame is hinged with the supporting oil cylinder through the connecting lugs.
Further, the front end of the trapezoid running rail is provided with a pin shaft connecting end, pin holes are formed in the pin shaft connecting end, trapezoid sliding blocks are symmetrically arranged on two sides of the trapezoid running rail and are connected with the supporting seat in a matched mode, and the top of the rear end of the trapezoid running rail is provided with a connecting lug I connected with the supporting oil cylinder.
Further, the supporting seat is of a rectangular box body structure, connecting lugs II used for being connected with the left supporting leg oil cylinder and the right supporting leg oil cylinder are arranged on two sides of the rectangular box body, and a groove body consistent with the cross section shape and the size of the trapezoid running track is arranged in the middle of the rectangular box body.
The use method of the rear supporting device of the adjustable multifunctional tunneling machine comprises the steps that under a normal working state, a connecting frame and a supporting seat are in a fitting state, and a supporting oil cylinder is in a normal shrinkage state; when the tunneling machine is used for cutting coal and rock in a large-breaking roadway, the extending length of a piston rod of a telescopic cylinder is adjusted to change the gravity center of the tunneling machine so as to prevent the tunneling machine from retreating, when the tunneling machine climbs a slope, firstly, a right supporting leg cylinder II and a left supporting leg cylinder III can be retracted, a right supporting leg cylinder I, a right supporting leg cylinder III, a left supporting leg cylinder I and a left supporting leg cylinder II can be extended so as to lift a left supporting plate and a right supporting plate, secondly, a right telescopic cylinder and a left telescopic cylinder are contracted, and as the right telescopic cylinder and the left telescopic cylinder are contracted, the supporting seat moves forwards to a certain position on a running track, the left supporting cylinder and the right supporting plate are lowered to support a bottom plate, and the tunneling machine starts to walk forwards and can be endowed with the tunneling machine to a large-breaking roadway when the tunneling machine is in a slope.
Compared with the prior art, the rear supporting device of the adjustable multifunctional tunneling machine, which is designed and developed by the invention, can bear the dead weight of equipment, reduce vibration load, prevent the equipment from sliding backwards or sideways during working, and increase new functions. The rear part of the scraper conveyor or the belt loader can be tilted, so that the reliability of a mechanical structure and the working efficiency of mechanical equipment are ensured, meanwhile, the special geological conditions of the large-inclination coal seam are aimed at, the working safety of the tunneling equipment is improved, the device which can be applied to the special geological conditions of the large-inclination coal seam is developed through researching the working process of the large-inclination coal seam, the forward walking power of the tunneling machine can be given, the problems of difficult climbing, poor stability, low safety coefficient and the like of the existing large-inclination comprehensive tunneling working face in the working process of the tunneling machine are solved, and the safe and efficient rapid tunneling of the large-inclination roadway is realized.
Drawings
FIG. 1 is a schematic diagram of a rear supporting device of a multifunctional heading machine;
FIG. 2 is a schematic diagram of a connection frame structure;
FIG. 3 is a schematic view of a trapezoidal track structure;
FIG. 4 is a schematic view of a support structure;
in the figure, a 1-connecting frame, a 2-right telescopic oil cylinder, a 3-supporting oil cylinder, a 4-right supporting leg oil cylinder I, a 5-right supporting leg oil cylinder II, a 6-right supporting leg oil cylinder III, a 7-right supporting disc, an 8-running track, a 9-supporting seat, a 10-left supporting leg oil cylinder I, an 11-left supporting leg oil cylinder II, a 12-left supporting disc, a 13-left supporting leg oil cylinder III and a 14-left telescopic oil cylinder are shown.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments, and all other embodiments obtained by persons of ordinary skill in the art without making creative efforts based on the embodiments of the present invention are all within the scope of protection of the present invention.
As shown in fig. 1, the rear supporting device of the adjustable multifunctional tunneling machine comprises a left supporting disc 12, a right supporting disc 7 and a connecting frame 1, wherein the left supporting disc 12 and the right supporting disc 7 are respectively connected with a supporting seat 9 through a left supporting leg oil cylinder and a right supporting leg oil cylinder, a trapezoid operation track 8 capable of sliding front and back on the supporting seat is arranged on the supporting seat 9, the front end of the trapezoid operation track 8 is fixedly connected with the lower part of the front end of the connecting frame 1, bolt holes are reserved at the front end and the rear end of the connecting frame 1 respectively for connecting the head and the tail of a tunneling machine frame body, the top of the rear end of the trapezoid operation track 8 is connected with the supporting oil cylinder 3 through a pin shaft, the other end of the supporting oil cylinder 3 is connected with the rear end of the connecting frame 1 through a pin shaft, and a left telescopic oil cylinder 14 and a right telescopic oil cylinder 2 are also connected between the supporting seat 9 and the front end of the connecting frame 1.
The left support leg oil cylinders are provided with three groups, including a left support leg oil cylinder I10, a left support leg oil cylinder II11 and a left support leg oil cylinder III13, and the right support leg oil cylinders are provided with three groups, including a right support leg oil cylinder I4, a right support leg oil cylinder II5 and a right support leg oil cylinder III6.
As shown in fig. 2, the connecting frame 1 is of a frame structure, a steel plate is arranged at the front end of the connecting frame 1, the middle part of the steel plate is hinged with the left telescopic cylinder 14 and the right telescopic cylinder 2 through connecting lugs, and the rear part of the connecting frame 1 is hinged with the supporting cylinder 3 through the connecting lugs.
As shown in fig. 3, the front end of the trapezoid running rail 8 is provided with a pin shaft connecting end 8.1, pin holes are formed in the pin shaft connecting end, trapezoid sliding blocks 8.2 are symmetrically arranged on two sides of the trapezoid running rail 8, the sliding blocks 8.2 are matched and connected with a supporting seat 9, and the top of the rear end of the trapezoid running rail 8 is provided with a connecting lug I8.3 connected with a supporting oil cylinder 3.
As shown in fig. 4, the supporting seat 9 is a rectangular box structure, two sides of the rectangular box are provided with connecting lugs II9.1 for connecting with the left and right supporting leg cylinders, and the middle part of the rectangular box is provided with a groove 9.2 with the same cross section shape and size as those of the trapezoid running rail 8.
In a normal working state, the connecting frame 1 and the supporting seat 9 are in a fitting state, and the telescopic oil cylinder 3 is in a normal shrinkage state. When the underground geological strips of the coal mine are softer, and the tunneller is used for cutting coal and rock, the influence of the dead weight of the body and the gravity of the coal and rock on the scraper conveyor is caused, the rear supporting legs, namely the left supporting disc and the right supporting disc, are sunk to a certain extent, so that the height of the rear part of the tunneller can be reduced, and the scraper conveyor or the belt loader is touched to the tail of the self-moving machine, so that the transportation of the coal and rock is influenced, and the damage of mechanical equipment is caused. In order not to cause the result, a telescopic structure of the supporting oil cylinder 3 is specially designed, when the left supporting disc and the right supporting disc sink to influence the transportation of coal and rock, the supporting oil cylinder 3 can be stretched to enable the rear of the scraper conveyor or the belt loader to be tilted, so that the reliability of a mechanical structure and the working efficiency of mechanical equipment are ensured.
When the heading machine cuts coal and rock in a large-breaking roadway, the position of the gravity center of the heading machine can be changed by adjusting the extending length of a piston rod of the telescopic oil cylinder 3, so that the heading machine is prevented from retreating, and mechanical equipment is prevented from being damaged and safety accidents are prevented.
Meanwhile, the mechanical mechanism can solve the problem that the heading machine climbs a slope difficultly in a large-breaking roadway. When the heading machine climbs a slope, firstly the right supporting leg oil cylinder II 5 and the left supporting leg oil cylinder III 13 can be retracted, the right supporting leg oil cylinder I4, the right supporting leg oil cylinder III 6, the left supporting leg oil cylinder I10 and the left supporting leg oil cylinder II11 extend out to enable the left supporting plate and the right supporting plate to be lifted, secondly the right telescopic oil cylinder 2 and the left telescopic oil cylinder 14 shrink, the supporting seat 9 lowers the left supporting plate and the right supporting plate to support the coal seam bottom plate when the right telescopic oil cylinder 2 and the left telescopic oil cylinder 14 shrink along with the shrinkage of the right telescopic oil cylinder 2 and the left telescopic oil cylinder 14 on the running track 8 to a certain position, and the heading machine starts to walk forwards and can stretch the power of the right telescopic oil cylinder 2 and the left telescopic oil cylinder 14 to endow the heading machine with forward walking, so that the heading machine can walk forwards in a large-breaking roadway is ensured.
It should be noted that the above embodiments are merely for illustrating the technical solution of the present invention and not for limiting the same, and although the present invention has been described in detail with reference to the above embodiments, it should be understood by those skilled in the art that the technical solution described in the above embodiments may be modified or some or all of the technical features may be equivalently replaced, and these modifications or substitutions do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the present invention.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111182869.9A CN113898360B (en) | 2021-10-11 | 2021-10-11 | An adjustable multifunctional rear support device for a tunnel boring machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111182869.9A CN113898360B (en) | 2021-10-11 | 2021-10-11 | An adjustable multifunctional rear support device for a tunnel boring machine |
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| Publication Number | Publication Date |
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| CN113898360A CN113898360A (en) | 2022-01-07 |
| CN113898360B true CN113898360B (en) | 2025-01-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111182869.9A Active CN113898360B (en) | 2021-10-11 | 2021-10-11 | An adjustable multifunctional rear support device for a tunnel boring machine |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115075839B (en) * | 2022-07-22 | 2022-11-04 | 山西天地煤机装备有限公司 | Rock tunneling machine and rock roadway tunneling method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147754A (en) * | 2013-03-01 | 2013-06-12 | 中传重型装备有限公司 | Second-operation rotary table mechanism for heading machines |
| CN106014435A (en) * | 2016-07-27 | 2016-10-12 | 山西天巨重工机械有限公司 | Efficient rapid rock drift tunneller |
| CN213743409U (en) * | 2020-12-09 | 2021-07-20 | 沈阳神龙汽车配件有限公司 | Rear support mechanism of sliding proceeding type heading machine for mining |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2836335C3 (en) * | 1978-08-19 | 1981-02-12 | Mannesmann Demag Ag, 4100 Duisburg | Device for supporting and decanting a full-face tunnel boring machine |
| CN201050367Y (en) * | 2007-07-15 | 2008-04-23 | 佳木斯煤矿机械有限公司 | Tunneller boosting device |
| CN101619659A (en) * | 2009-08-10 | 2010-01-06 | 山西兰花科技创业股份有限公司 | Fully-mechanized digging machine of cantilever type second transporter |
| CN201635738U (en) * | 2009-12-17 | 2010-11-17 | 平顶山市利安大机电设备有限公司 | Rear supporting arm of cantilever type excavator |
| CN102296953B (en) * | 2011-08-07 | 2013-08-14 | 中国煤炭科工集团太原研究院 | Rear stable tail wagging mechanism of excavator |
| CN106522964B (en) * | 2016-12-27 | 2018-07-13 | 天地上海采掘装备科技有限公司 | Large gradient roadheader auxiliary climbing equipment |
| CN113464156B (en) * | 2021-07-30 | 2023-04-25 | 太原理工大学 | Auxiliary tensioning propulsion mechanism and tunnel boring machine |
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2021
- 2021-10-11 CN CN202111182869.9A patent/CN113898360B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103147754A (en) * | 2013-03-01 | 2013-06-12 | 中传重型装备有限公司 | Second-operation rotary table mechanism for heading machines |
| CN106014435A (en) * | 2016-07-27 | 2016-10-12 | 山西天巨重工机械有限公司 | Efficient rapid rock drift tunneller |
| CN213743409U (en) * | 2020-12-09 | 2021-07-20 | 沈阳神龙汽车配件有限公司 | Rear support mechanism of sliding proceeding type heading machine for mining |
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