CN114151098A - A tunnel boring machine auxiliary slag raking equipment for quickly clearing the slag at the side of the tunnel - Google Patents
A tunnel boring machine auxiliary slag raking equipment for quickly clearing the slag at the side of the tunnel Download PDFInfo
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- CN114151098A CN114151098A CN202111339875.0A CN202111339875A CN114151098A CN 114151098 A CN114151098 A CN 114151098A CN 202111339875 A CN202111339875 A CN 202111339875A CN 114151098 A CN114151098 A CN 114151098A
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- 239000002893 slag Substances 0.000 title claims abstract description 197
- 238000004140 cleaning Methods 0.000 claims abstract description 16
- 230000009471 action Effects 0.000 claims abstract description 11
- 239000002516 radical scavenger Substances 0.000 claims 1
- 230000002000 scavenging effect Effects 0.000 claims 1
- 239000004575 stone Substances 0.000 abstract description 26
- 238000010276 construction Methods 0.000 abstract description 13
- 238000005096 rolling process Methods 0.000 abstract description 11
- 238000007599 discharging Methods 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 239000011435 rock Substances 0.000 description 6
- 239000013049 sediment Substances 0.000 description 5
- 230000005641 tunneling Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- 238000009412 basement excavation Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 239000003245 coal Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000007790 scraping Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000000576 supplementary effect Effects 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
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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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01H—STREET CLEANING; CLEANING OF PERMANENT WAYS; CLEANING BEACHES; DISPERSING OR PREVENTING FOG IN GENERAL CLEANING STREET OR RAILWAY FURNITURE OR TUNNEL WALLS
- E01H1/00—Removing undesirable matter from roads or like surfaces, with or without moistening of the surface
-
- 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
- E21D9/12—Devices for removing or hauling away excavated material or spoil; Working or loading platforms
- E21D9/126—Loading devices or installations
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- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Shovels (AREA)
Abstract
The invention belongs to the technical field of tunnel construction, and particularly relates to an auxiliary slag raking device of a tunnel boring machine for quickly cleaning tunnel foot slag stones. The invention is a bucket-shaped structure and comprises a side baffle, a rear baffle, a bottom shovel plate, a bottom board slag shoveling upper slope and a bottom board slag shoveling lower slope which are connected into a whole; a plurality of upper slope rollers are connected to the front upper slope of the bottom plate in a rolling manner, and a plurality of inclined lower slope rollers are connected to the bottom plate slag shoveling lower slope in a rolling manner; the left side and the right side of the tunnel boring machine can be detachably connected with auxiliary slag raking equipment, slag enters the bottom plate to shovel slag to move upwards and downwards along the bottom plate under the action of the rollers on the upper slope surface along the slag shoveling bucket of the tunnel boring machine along the forward propulsion of the slag shoveling bucket of the tunnel boring machine, and then slides to the slag shoveling plate of the tunnel boring machine along the rolling direction of the rollers on the lower slope surface under the action of the rollers on the lower slope surface. According to the invention, the two-foot slag stones of the tunnel are raked to be close to the slag shoveling plate star wheel of the tunnel boring machine, and the two-foot slag stones of the tunnel can be synchronously cleaned in real time during the slag shoveling period of the tunnel boring machine.
Description
Technical Field
The invention belongs to the technical field of tunnel construction, and particularly relates to an auxiliary slag raking device of a tunnel boring machine for quickly cleaning tunnel foot slag stones.
Background
Along with the large-area operation of capital construction projects in China in recent years, tunnels under construction are more and more in China, tunnel construction has the characteristics of high construction cost and long construction period, and the reasons for the situation are mainly as follows: the method has the advantages of low rock breaking efficiency, low slag discharging speed, low supporting speed, untight connection of all working procedures and the like, wherein the slag discharging efficiency has an important influence on the efficiency of tunnel construction. At present, the proportion of mechanical excavation in tunnel construction is higher and higher, and a tunnel boring machine is generally adopted in mechanical excavation, and a slag discharging system of the mechanical excavation comprises a slag shoveling plate, a slag scraping chute, a conveying belt and the like. The tunnel boring machine is mainly a technology introduced into a coal mine tunnel boring machine, and the tunnel boring machine tends to be mature in the field of coal mine tunnel boring, but the characteristics of a tunnel boring rock mass are different from those of coal mine tunnel boring. The stratum that colliery well worker exploitation was located is the coal-series stratum, and its rock mass is comparatively hard, and the rock mass breaks to form the cubic in the tunnelling process, and the slag slab of tunnelling head can in time be cleared up in time under the heading machine bottom shovel slag plate normal condition, and tunnel engineering rock mass intensity change is great, and to weak rock mass, can form tiny fragment after its breakage, each engineering tunnel section is different, and the slag slab of tunnelling machine self is because the reason of self size, often can't thoroughly clear away the slag slab of tunnel both feet, consequently needs manual cleaning, and it takes time to take a lot of work, seriously restricts tunnel tunnelling efficiency.
Disclosure of Invention
The invention provides tunnel boring machine auxiliary slag raking equipment for quickly cleaning tunnel leftover slag, and aims to solve the problems that the existing tunnel boring machine slag shoveling plate cannot clean the slag stones at two ends of a tunnel, so that manual cleaning is needed, labor and time are wasted, and the tunneling efficiency is seriously restricted.
The invention is realized by adopting the following technical scheme: a tunnel boring machine auxiliary slag raking device for rapidly cleaning tunnel leftover slag stones is of a bucket-shaped structure and comprises a side baffle, a rear baffle, a bottom shovel plate, a bottom plate slag shoveling upper slope and a bottom plate slag shoveling lower slope which are connected into a whole;
the bottom plate slag shoveling upper slope and the bottom plate slag shoveling lower slope are three-dimensional curved surfaces, the bottom plate slag shoveling upper slope, the bottom plate slag shoveling lower slope, the bottom shoveling plate and the rear baffle are sequentially connected from front to back, and the side baffle is arranged on the left side of the rear baffle, the bottom shoveling plate, the bottom plate slag shoveling upper slope and the bottom plate slag shoveling lower slope; a plurality of upper slope rollers are connected to the front upper slope of the bottom plate in a rolling manner, and a plurality of inclined lower slope rollers are connected to the bottom plate slag shoveling lower slope in a rolling manner;
the left side and the right side of the tunnel boring machine are detachably connected with auxiliary slag raking devices, slag stones enter the bottom plate to shovel slag to move upwards and downwards along the bottom plate under the action of the rollers on the upper slope surface after entering the bottom plate to shovel slag upwards and downwards along the bottom plate under the action of the rollers on the lower slope surface along the rolling direction of the rollers on the lower slope surface along the pushing direction of the star wheels of the tunnel boring machine and are conveyed to the slag discharging devices along with the forward pushing of the slag shoveling bucket of the tunnel boring machine.
Further, the curved surface equation of the slag shoveling upper slope surface of the bottom plate is
Wherein H is the height of the highest point of the upper slope of the bottom plate slag shoveling surface, L3 is the length of the auxiliary slag raking equipment, L1 is the horizontal distance between the highest point of the slope and the front edge of the auxiliary slag raking equipment, and H1 is the height of the front edge of the auxiliary slag raking equipment.
Furthermore, the bottom plate shovels the curved surface of the slag falling surfaceThe equation is
Wherein H is the height of the highest point of the bottom plate slag shoveling downhill surface, L3 is the length of the auxiliary slag raking device, L2 is the horizontal distance from the highest point of the slope to the tail end of the bottom plate slag shoveling downhill surface, L1 is the horizontal distance from the highest point of the slope to the front edge of the auxiliary slag raking device, and H2 is the height of the tail end of the bottom plate slag shoveling downhill surface.
Furthermore, the roller on the upper slope surface is 5mm higher than the surface of the front upper slope surface of the bottom plate, and the axis of the roller on the upper slope surface is parallel to the front edge of the auxiliary slag raking equipment.
Furthermore, the roller of the downhill surface is 5mm higher than the surface of the slag shoveling downhill surface of the bottom plate, and the included angle between the axis of the roller of the downhill surface and the front edge of the auxiliary slag raking device is 25 degrees.
Furthermore, a rear baffle bolt hole is formed in the position, far away from the side baffle, of the rear baffle, and the rear baffle bolt hole is connected with a bottom plate of a slag shoveling plate of the tunnel boring machine through a bolt.
Furthermore, one side of the bottom shovel plate, which is far away from the side baffle, is provided with a rear baffle bolt hole, and the rear baffle bolt hole is connected with a rear baffle of a slag shoveling plate of the tunnel boring machine through a bolt.
Furthermore, the device has multiple specifications, and the lengths of different specifications are different.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention has simple structure, small processing difficulty, low manufacturing cost, easy installation, strong adaptability to the tunnel boring machine and convenient rapid processing and popularization;
2. when the device is used, the device is arranged on a slag shoveling plate of a tunnel boring machine, and the forward propelling force of the boring machine is skillfully utilized, so that the slag stones are firstly transported to the curved surface of the upper slope surface of the slag shoveling of the bottom plate, are rotated to the rear part of the device under the auxiliary action of rollers on the upper slope surface, then enter the curved surface of the lower slope surface of the slag shoveling of the bottom plate, and are rotated to the star wheel slag discharging position of the shovel plate of the boring machine under the self-weight action of the rollers on the lower slope surface, and the slag stones at two feet of the tunnel can be timely and synchronously cleaned in real time, thereby realizing the real-time complete cleaning of the slag stones in the full section of the tunnel boring;
3. the slag shoveling plate is connected and installed on two sides of the slag shoveling plate of the tunnel boring machine through bolts, has various length specifications, and can be quickly replaced to adapt to different tunnel sections in the using process;
therefore, the two-foot slag stones in the tunnel are raked to the positions near the star wheel of the slag shoveling plate of the tunnel boring machine by installing the equipment on the two sides of the tunnel boring machine, the slag stones are transferred to the slag discharging system through the star wheel, and the two-foot slag stones in the tunnel boring machine can be synchronously cleaned in real time during the slag shoveling period; the installation process is simple, the use is convenient, and the shoveling slag can be accurately and timely adjusted according to the width of the tunnel and the width of the shovel plate of the tunneling machine by widening the shovel plate at the bottom of the tunneling machine, so that the problem that the two-foot slag stones of the tunnel cannot be cleaned due to the small width of the shovel plate of the tunneling machine is solved, the tunnel slag stones can be quickly and conveniently cleaned, the construction time can be greatly shortened under the conditions of short tunnel construction period and limited operation space, the construction efficiency is improved, and the construction cost is saved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of curved surfaces of a bottom plate slag shoveling upper slope and a bottom plate slag shoveling lower slope on an xy plane;
FIG. 3 is a schematic view of the curved surfaces of the bottom plate slag shoveling upper slope and the bottom plate slag shoveling lower slope in an xyz coordinate system;
FIG. 4 is a graph of the travel track of the slag;
in the figure: 1-side baffle plate, 2-rear baffle plate, 3-bottom shovel plate, 4-bottom board slag shoveling up-slope surface, 5-bottom board slag shoveling down-slope surface, 6-rear baffle plate bolt hole, 7-bottom board bolt hole, 8-up-slope surface roller and 9-down-slope surface roller.
Detailed Description
The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure.
It should be understood that the structures, ratios, sizes, and the like shown in the drawings and described in the specification are only used for matching with the disclosure of the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions under which the present invention can be implemented, so that the present invention has no technical significance, and any structural modification, ratio relationship change, or size adjustment should still fall within the scope of the present invention without affecting the efficacy and the achievable purpose of the present invention. In addition, the terms "upper", "lower", "left", "right", "middle" and "one" used in the present specification are for clarity of description, and are not intended to limit the scope of the present invention, and the relative relationship between the terms and the terms is not to be construed as a scope of the present invention.
Referring to fig. 1 to 4, the present invention provides a technical solution: a tunnel boring machine auxiliary slag raking device for rapidly cleaning tunnel leftover slag stones is of a bucket-shaped structure and comprises a side baffle 1, a rear baffle 2, a bottom shovel plate 3, a bottom board slag shoveling upper slope 4 and a bottom board slag shoveling lower slope 5 which are connected into a whole;
the bottom plate slag shoveling upper slope surface 4 and the bottom plate slag shoveling lower slope surface 5 are three-dimensional curved surfaces, the bottom plate slag shoveling upper slope surface 4, the bottom plate slag shoveling lower slope surface 5, the bottom shoveling plate 3 and the rear baffle plate 2 are sequentially connected from front to back, and the side baffle plate 1 is arranged on the left side of the rear baffle plate 2, the bottom shoveling plate 3, the bottom plate slag shoveling upper slope surface 4 and the bottom plate slag shoveling lower slope surface 5; a plurality of upper slope surface rollers 8 are connected to the front upper slope surface 4 of the bottom plate in a rolling manner, and a plurality of inclined lower slope surface rollers 9 are connected to the bottom plate slag shoveling lower slope surface 5 in a rolling manner;
the left side and the right side of the tunnel boring machine are detachably connected with auxiliary slag raking devices, slag stones enter the bottom plate slag shoveling upper slope surface 4 and then move along the bottom plate slag shoveling upper slope surface 4 under the action of upper slope surface rollers 8 along the action of the lower slope surface rollers 8 along the pushing forward of a slag shoveling bucket of the tunnel boring machine, then enter the bottom plate slag shoveling lower slope surface 5, slide onto a slag shoveling plate of the tunnel boring machine along the rolling direction of the lower slope surface rollers 9 under the action of the lower slope surface rollers 9, and are conveyed to the slag discharging devices under the stirring of star wheels of the tunnel boring machine.
The curved surface equation of the bottom plate slag shoveling upper slope surface 4 is
Wherein, H is the height of the highest point of the bottom plate slag shoveling upper slope 4 (namely H is the height of the joint of the bottom plate slag shoveling upper slope 4 and the bottom plate slag shoveling lower slope 5), L3 is the length of the auxiliary slag raking equipment, L1 is the horizontal distance between the highest point of the slope and the front edge of the auxiliary slag raking equipment, and H1 is the height of the front edge of the auxiliary slag raking equipment, namely the height of the front end of the bottom plate slag shoveling upper slope 4.
The curved surface equation of the bottom plate slag shoveling lower slope surface 5 is
Wherein, H is the height of the highest point of the bottom plate slag shoveling downward slope 5 (namely H is the height of the joint of the bottom plate slag shoveling upward slope 4 and the bottom plate slag shoveling downward slope 5), L3 is the length of the auxiliary slag raking device, L2 is the horizontal distance between the highest point of the slope and the tail end of the bottom plate slag shoveling downward slope 5, L1 is the horizontal distance between the highest point of the slope and the front edge of the auxiliary slag raking device, and H2 is the height of the tail end of the bottom plate slag shoveling downward slope 5.
Stress monitoring of the slag shoveling process of the tunneling machine shows that the maximum thrust of the massive slag stones to the shovel plate depends on the gradient of the shovel plate, and based on stress fitting of the massive slag stones in the movement of the shovel plate, the massive slag stones can smoothly enter the slag shoveling device, and the condition that the component of the acting force of the slag stones and the shovel plate in the horizontal direction is smaller than the maximum thrust is required to be met. Therefore, based on an equation of fitting thrust, the friction force between the slag stone and the bottom plate needs to be reduced when the size of the slag raking equipment is reduced, on the basis of considering small frictional resistance, the mechanical characteristics of multipoint hinge joint of the slag stone and the roller in the movement process of the slag stone are considered, the three-dimensional size is considered, and the equation of the upper slope surface of the shovel plate is obtained through analysis and fitting
On the basis of smooth coupling of the curved surface, an equation of the downward slope is obtained
。
Under the normal condition, the values of L1, L2, L3, H1, H2 and H are determined according to the size of a bucket of the tunnel boring machine, H1 is the thickness of a front plate of a shovel plate, H2 is the thickness of a steel plate at the tail end of the shovel plate, H is usually 20cm, L1 is 30cm, L2 is 40cm, and L3 is the length of the slag shoveling auxiliary equipment required to be widened.
The roller 8 on the upper slope surface is 5mm higher than the surface of the front upper slope surface 4 of the bottom plate, and the axis of the roller 8 on the upper slope surface is parallel to the front edge of the auxiliary slag raking equipment.
The downhill surface roller 9 is 5mm higher than the surface of the slag shoveling downhill surface 5 of the bottom plate, and the included angle between the axis of the downhill surface roller 9 and the front edge of the auxiliary slag raking equipment is 25 degrees.
And a rear baffle bolt hole 6 is formed in the position, far away from the side baffle 1, of the rear baffle 2, and the rear baffle bolt hole 6 is connected with a bottom plate of a slag shoveling plate of the tunnel boring machine through a bolt.
And a rear baffle bolt hole 7 is formed in one side, far away from the side baffle 1, of the bottom shovel plate 3, and the rear baffle bolt hole 7 is connected with a rear baffle of a slag shoveling plate of the tunnel boring machine through a bolt.
The side baffle 1 of this application is the flat board of both sides straight flange, one side curve limit, and backplate 2 is the rectangular plate, and end shovel board 3 is the flat board.
The utility model provides a slope surface 4 is gone up to the bottom plate before, and the height is low after present earlier backward in the past, and the slag stone that needs to be cleared up is gone up slope surface 4 and bottom plate shovel sediment down domatic 5 before the bottom plate to slide along domatic slope to the top of a slope under the sliding action of going up domatic gyro wheel 8 and downhill path gyro wheel 9, because the effect of dead weight slides to shovel board limit along the gyro wheel.
The tunnel section has multiple specifications, and the lengths of different specifications are different, so that the tunnel section is suitable for different tunnel sections.
The working principle of the invention is as follows:
in the sediment work of shovel, when tunnel boring machine's shovel sediment fill forward propulsion, the slag stone moves to the top of slope along bottom plate preceding domatic 4 under the rolling effect of last domatic gyro wheel 8, and back is again under the supplementary action of back domatic gyro wheel 9, and the position that this application and tunnel boring machine's shovel sediment board is connected is slided to along the direction of rolling of back domatic gyro wheel 9, transports to row sediment equipment under stirring of star gear afterwards.
The foregoing embodiments are merely illustrative of the principles and utilities of the present invention and are not intended to limit the invention. Any person skilled in the art can modify or change the above-mentioned embodiments without departing from the spirit and scope of the present invention. Accordingly, it is intended that all equivalent modifications or changes which can be made by those skilled in the art without departing from the spirit and technical spirit of the present invention be covered by the claims of the present invention.
Claims (8)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111339875.0A CN114151098B (en) | 2021-11-12 | 2021-11-12 | Auxiliary slag raking equipment of tunnel boring machine for rapidly cleaning slag stones at edges of tunnel |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111339875.0A CN114151098B (en) | 2021-11-12 | 2021-11-12 | Auxiliary slag raking equipment of tunnel boring machine for rapidly cleaning slag stones at edges of tunnel |
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| CN114151098A true CN114151098A (en) | 2022-03-08 |
| CN114151098B CN114151098B (en) | 2023-12-05 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4131132A1 (en) * | 1991-09-19 | 1993-03-25 | Becker Walter Gmbh | Roadway or tunnel driving machine - has jibs of length and swivel action for tool cut surfaces intersecting at specified angle |
| CN203113393U (en) * | 2012-11-22 | 2013-08-07 | 泰安嘉和重工机械有限公司 | Excavating type continuous loading machine |
| CN204627610U (en) * | 2015-05-05 | 2015-09-09 | 平顶山市铁福来机电设备有限公司 | A kind of crawler type slusher machine being provided with belt conveyor |
| CN207583374U (en) * | 2017-11-24 | 2018-07-06 | 兖州煤业股份有限公司 | Tunnel shovel board and corresponding development machine |
| CN113417656A (en) * | 2021-08-09 | 2021-09-21 | 太原理工大学 | Minor diameter TBM structure and tunnel boring machine of slagging tap |
-
2021
- 2021-11-12 CN CN202111339875.0A patent/CN114151098B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4131132A1 (en) * | 1991-09-19 | 1993-03-25 | Becker Walter Gmbh | Roadway or tunnel driving machine - has jibs of length and swivel action for tool cut surfaces intersecting at specified angle |
| CN203113393U (en) * | 2012-11-22 | 2013-08-07 | 泰安嘉和重工机械有限公司 | Excavating type continuous loading machine |
| CN204627610U (en) * | 2015-05-05 | 2015-09-09 | 平顶山市铁福来机电设备有限公司 | A kind of crawler type slusher machine being provided with belt conveyor |
| CN207583374U (en) * | 2017-11-24 | 2018-07-06 | 兖州煤业股份有限公司 | Tunnel shovel board and corresponding development machine |
| CN113417656A (en) * | 2021-08-09 | 2021-09-21 | 太原理工大学 | Minor diameter TBM structure and tunnel boring machine of slagging tap |
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| CN114151098B (en) | 2023-12-05 |
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