CN111550260A - Trolley for soft rock tunnel full-section micro-step excavation construction and use method - Google Patents
Trolley for soft rock tunnel full-section micro-step excavation construction and use method Download PDFInfo
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- CN111550260A CN111550260A CN202010194773.3A CN202010194773A CN111550260A CN 111550260 A CN111550260 A CN 111550260A CN 202010194773 A CN202010194773 A CN 202010194773A CN 111550260 A CN111550260 A CN 111550260A
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- 238000009412 basement excavation Methods 0.000 title claims abstract description 27
- 238000010276 construction Methods 0.000 title claims abstract description 23
- 239000011435 rock Substances 0.000 title claims abstract description 22
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000005540 biological transmission Effects 0.000 claims abstract description 46
- 230000007246 mechanism Effects 0.000 claims abstract description 36
- 238000009434 installation Methods 0.000 claims description 29
- 230000000670 limiting effect Effects 0.000 claims description 8
- 230000001681 protective effect Effects 0.000 claims description 6
- 230000008569 process Effects 0.000 claims description 4
- 238000005553 drilling Methods 0.000 abstract description 8
- 238000005422 blasting Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002633 protecting effect Effects 0.000 description 1
- 238000005507 spraying Methods 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
- E21D9/10—Making by using boring or cutting machines
- E21D9/11—Making by using boring or cutting machines with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines
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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
-
- 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
- E21D9/006—Tunnels or galleries, with or without linings; Methods or apparatus for making thereof; Layout of tunnels or galleries by making use of blasting methods
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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)
- Earth Drilling (AREA)
Abstract
The invention provides a trolley for soft rock tunnel full-section micro-step excavation construction and a using method thereof, belonging to the field of tunnel engineering machinery, comprising a moving mechanism, wherein the moving mechanism comprises a fixed plate, a first servo motor, a screw rod, a supporting plate, a transmission nut, a moving block, a moving plate and a rack, the first servo motor is fixed in the middle of the fixed plate, one end part of the screw rod is fixedly connected with an output shaft of the first servo motor, one end part of the screw rod, far away from the first servo motor, is rotatably connected with the supporting plate, the inner side of the transmission nut is in threaded transmission connection with the screw rod, the outer side of the transmission nut is embedded in the moving block, the moving plate is fixed at the upper end of the moving block, the rack is fixed on the upper end surface of the moving block, the whole device has high strength, light weight and convenient movement, the balance degree is good, and the drilling quality is improved.
Description
Technical Field
The invention relates to the field of tunnel engineering machinery, in particular to a trolley and a method for soft rock tunnel full-section micro-step excavation construction.
Background
The main procedures of the full-section excavation method are as follows: the movable drilling trolley is used for firstly drilling a full-section hole at one time, charging and connecting the hole, then retreating the drilling trolley to a safe place beyond 50m, detonating again to enable the drilling trolley to be formed through one-time blasting, pushing an excavation face to be in place after deslagging, starting the next drilling and blasting operation cycle, and simultaneously performing anchor-spraying support or wall arch first and then lining.
Disclosure of Invention
In order to make up for the defects, the invention provides a trolley and a method for soft rock tunnel full-section micro-step excavation construction, and aims to solve the problems that the existing cantilever type rack is difficult to keep balance degree when a full-section construction method is used in tunnel engineering, so that the drilling quality is poor, and the whole device is large in size, heavy in weight and inconvenient to move.
The invention is realized by the following steps: the trolley for soft rock tunnel full-section micro-step excavation construction comprises a moving mechanism, wherein the moving mechanism comprises a fixed plate, a first servo motor, a screw rod, a supporting plate, a transmission nut, a moving block, a moving plate and a rack, the first servo motor is fixed in the middle of the fixed plate, one end part of the screw rod is fixedly connected with an output shaft of the first servo motor, and one end part of the screw rod, far away from the first servo motor, is rotatably connected with the supporting plate;
the inner side of the transmission nut is in threaded transmission connection with the lead screw, the outer side of the transmission nut is embedded in the moving block, the moving plate is fixed at the upper end of the moving block, and the rack is fixed on the upper end face of the moving plate.
In an embodiment of the invention, height adjusting mechanisms are arranged on two sides of the moving mechanism, each height adjusting mechanism comprises an installation box, a transmission mechanism, a fixed block and a lifting plate, the transmission mechanism is arranged in the installation box, the fixed block is fixed on the transmission mechanism, the lifting plate and the fixed block are welded and fixed together, the fixed plate and the supporting plate are fixed on the upper end face of the lifting plate, the moving plate and the lifting plate are connected in a sliding mode through a linear rail, and the limiting block is fixed on the lifting plate.
In an embodiment of the present invention, the transmission mechanism includes a second servo motor, a first belt pulley, a second belt pulley, a first rotating shaft, a first chain wheel, a chain, a second chain wheel, a second rotating shaft, and a support rod, the second servo motor is fixed at the bottom end inside the installation box, the first belt pulley is fixedly connected to an output shaft of the second servo motor, the second belt pulley is in transmission connection with the first belt pulley through a transmission belt, the second belt pulley is fixed at the middle position of the first rotating shaft, the end parts at the two ends of the first rotating shaft are in rotational connection with the side wall of the installation box, and the first chain wheels are fixed at the two sides of the first rotating shaft.
In an embodiment of the present invention, the second sprocket is in transmission connection with the first sprocket through the chain, the second sprocket is fixed at two end portions of the second rotating shaft, the upper end of the support rod is in rotational connection with the second rotating shaft, and the lower end of the support rod is welded on the upper end surface of the installation box.
In one embodiment of the invention, self-locking universal wheels are fixed at four corners of the bottom end of the installation box.
In one embodiment of the invention, a connecting plate is fixed at the upper end of the supporting rod, a protective cover is welded between the connecting plate and the mounting box, and the chain is located inside the protective cover.
In an embodiment of the invention, an avoiding opening matched with the chain is formed at the top end of the installation box, and the chain penetrates through the installation box through the avoiding opening.
In one embodiment of the invention, two sets of transmission mechanisms are arranged, and the two sets of transmission mechanisms are respectively arranged on two sides of the lifting plate.
In an embodiment of the present invention, the support rod is provided with a sliding member, the sliding member includes a guide sleeve and a sliding block, an outer cylindrical surface of the support rod is slidably connected to the guide sleeve, the guide sleeve is embedded in the sliding block, and the sliding block is fixed to a side surface of the lifting plate.
The use method of the trolley for soft rock tunnel full-section micro-step excavation construction, which is carried out by using the trolley for soft rock tunnel full-section micro-step excavation construction of any one of claims 1 to 9, comprises the following steps:
the method comprises the following steps: firstly, the whole device is pushed, the whole device is moved to a micro-step in a tunnel under the driving of a self-locking universal wheel, and then a worker enters a rack with a perforating machine;
step two: then two second servo motors in the installation box are started simultaneously, and the two second servo motors are opposite in rotation direction, one is positive and the other is negative, so that the second servo motors drive a first belt pulley to rotate, the first belt pulley drives a second belt pulley to rotate through a conveying belt, the second belt pulley drives a first rotating shaft to rotate, the first rotating shaft drives first chain wheels on two sides to rotate, the first chain wheels drive second chain wheels to rotate through chains, and the chains move upwards under the driving of the first chain wheels and the second chain wheels;
step three: the chains on the two sides drive the lifting plate to slide upwards along the supporting rod through the fixing blocks, so that the lifting plate drives the rack to move upwards, the second servo motor stops working after the lifting plate is lifted to a preset position, and the lifting plate stops moving;
step four: then start first servo motor, and then first servo motor drives the lead screw rotation, and the rotation of lead screw drives drive nut and moves along the lead screw, and then drive nut drives the movable block and moves forward, and then the movable block drives the movable plate and slides forward, and then the movable plate drives the rack and slides forward, and then the rack drives people and puncher and moves forward and be close the step and then excavate, and whole process finishes.
The invention has the beneficial effects that: the invention drives a first belt pulley to rotate through a second servo motor, the first belt pulley drives a second belt pulley to rotate through a conveying belt, the second belt pulley drives a first rotating shaft to rotate, the first rotating shaft drives first chain wheels on two sides to rotate, the first chain wheels drive second chain wheels to rotate through chains, the chains move up and down under the driving of the first chain wheels and the second chain wheels, the chains on two sides drive a lifting plate to slide up and down along a supporting rod through a fixed block, the lifting plate drives a rack to move up and down, the height adjustment on the rack is realized, the first servo motor drives a lead screw to rotate, the rotation of the lead screw drives a transmission nut to move forward along the lead screw, the transmission nut drives a moving block to move forward and backward, the moving block drives a moving plate to slide forward and backward, the moving plate drives the rack to slide forward and backward, the forward and backward sliding of steps, the whole device is high in strength, light in weight, convenient to move, good in balance degree and capable of improving the drilling quality.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is an overall block diagram provided by an embodiment of the present invention;
FIG. 2 is an enlarged view of the location A in FIG. 2;
FIG. 3 is an enlarged view of the location B in FIG. 2;
FIG. 4 is an enlarged view of the location C of FIG. 2;
FIG. 5 is an isometric view provided by an embodiment of the present invention;
fig. 6 shows a moving mechanism structure according to an embodiment of the present invention.
In the figure: 100-a moving mechanism; 110-a fixed plate; 111-a first servo motor; 112-a screw rod; 113-a support plate; 114-a drive nut; 115-moving block; 116-a moving plate; 117-gantry; 118-a stopper; 200-a height adjustment mechanism; 210-an installation box; 211-self-locking universal wheels; 220-a transmission mechanism; 221-a second servo motor; 222-a first pulley; 223-a second pulley; 224-a first shaft; 225-a first sprocket; 226-a chain; 227-a second sprocket; 228-a second shaft; 229-support rods; 230-fixed block; 231-a lifter plate; 232-connecting plate; 233-protective cover; 234-avoidance port; 300-a slide; 310-a guide sleeve; 311 — a slider.
Detailed Description
In order to make 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 described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
Examples
Referring to fig. 1, 5 and 6, the present invention provides a technical solution: the utility model provides a soft rock tunnel full-section is platform truck for little step excavation construction, including moving mechanism 100, moving mechanism 100 includes fixed plate 110, first servo motor 111, lead screw 112, backup pad 113, drive nut 114, movable block 115, movable plate 116 and rack 117, first servo motor 111 is fixed in the centre of fixed plate 110, the one end of lead screw 112 is fixed with the output shaft of first servo motor 111, the one end of lead screw 112 that keeps away from first servo motor 111 is connected with backup pad 113 rotation, the inboard and the lead screw 112 screw thread drive of drive nut 114 are connected, the outside of drive nut 114 is inlayed in movable block 115, movable plate 116 is fixed in the upper end of movable block 115, rack 117 is fixed in the up end of movable plate 116.
Referring to fig. 1, 2, 3 and 4, in an embodiment of the present invention, height adjusting mechanisms 200 are disposed on two sides of a moving mechanism 100, each height adjusting mechanism 200 includes a mounting box 210, two sets of transmission mechanisms 220 are respectively disposed on two sides of a lifting plate 231 to raise or lower two sides of the lifting plate 231 simultaneously for height adjustment, the transmission mechanisms 220 are disposed in the mounting box 210, the fixing blocks 230 are fixed on the transmission mechanisms 220, the lifting plate 231 and the fixing blocks 230 are welded and fixed together, the fixing plate 110 and the supporting plate 113 are fixed on the upper end surfaces of the lifting plate 231, and 116 and the lifting plate 231 are slidably connected by a linear rail, the limiting block 118 is fixed on the lifting plate 231, and when the moving block 115 slides forwards, the moving block 115 stops moving after contacting the limiting block 118, so that the moving block 116 is prevented from sliding out of the lifting plate 231, and limiting and protecting effects are achieved.
Referring to fig. 1, 2, 3 and 4, in an embodiment of the present invention, the transmission mechanism 220 includes a second servo motor 221, a first belt pulley 222, a second belt pulley 223, a first rotating shaft 224, a first chain wheel 225, a chain 226, a second chain wheel 227, a second rotating shaft 228 and a support rod 229, the second servo motor 221 is fixed at the inner bottom end of the installation box 210, the first belt pulley 222 is fixedly connected to an output shaft of the second servo motor 221, the second belt pulley 223 is in transmission connection with the first belt pulley 222 through a transmission belt, the second belt pulley 223 is fixed at a middle position of the first rotating shaft 224, two end portions of the first rotating shaft 224 are in rotational connection with the side wall of the installation box 210, the first chain wheels 225 are fixed at two sides of the first rotating shaft 224, the second chain wheel 227 is in transmission connection with the first chain wheel 225 through the chain 226, the second chain wheel 227 is fixed at two end portions of the second rotating shaft 228, an upper end of the support rod 229 is in rotational connection with the second, the lower ends of the support bars 229 are welded to the upper end surface of the installation case 210.
Referring to fig. 1 and 5, in an embodiment of the present invention, a connecting plate 232 is fixed to an upper end of a support rod 229, a protective cover 233 is welded between the connecting plate 232 and the installation box 210, a chain 226 is located inside the protective cover 233 to isolate and protect the chain 226 and prevent external objects from contacting with the chain 226 and affecting normal operation, an avoiding opening 234 adapted to the chain 226 is formed at a top end of the installation box 210, the chain 226 penetrates through the installation box 210 through the avoiding opening 234, and the chain 226 conveniently penetrates through the installation box 210 through the avoiding opening 234.
Referring to fig. 1, 2 and 4, in an embodiment of the present invention, the support bar 229 is provided with a sliding member 300, the sliding member 300 includes a guide sleeve 310 and a sliding block 311, an outer cylindrical surface of the support bar 229 is slidably connected to the guide sleeve 310, the guide sleeve 310 is embedded in the sliding block 311, and the sliding block 311 is fixed on a side surface of the lifting plate 231, so that the lifting plate 231 slides up and down along the support bar 229 to perform a guiding function.
A use method of the soft rock tunnel full-section micro-step excavation construction trolley is carried out by using the soft rock tunnel full-section micro-step excavation construction trolley of any one of claims 1 to 9, and comprises the following steps:
the method comprises the following steps: firstly, the whole device is pushed, the whole device is moved to a micro-step in a tunnel under the drive of a self-locking universal wheel 211, and then a worker enters the rack 117 with the perforating machine;
step two: then, two second servo motors 221 in the installation box 210 are started simultaneously, and the directions of the two second servo motors 221 are opposite, one is positive, and the other is negative, so that the second servo motors 221 drive the first belt pulley 222 to rotate, the first belt pulley 222 drives the second belt pulley 223 to rotate through the conveyor belt, the second belt pulley 223 drives the first rotating shaft 224 to rotate, the first rotating shaft 224 drives the first chain wheels 225 on the two sides to rotate, the first chain wheels 225 drive the second chain wheels 227 to rotate through the chains 226, and the chains 226 are driven by the first chain wheels 225 and the second chain wheels 227 to move upwards;
step three: the two side chains 226 drive the lifting plate 231 to slide upwards along the support rod 229 through the fixing block 230, so that the lifting plate 231 drives the rack 117 to move upwards, the second servo motor 221 stops working after the lifting plate is lifted to a preset position, and the lifting plate 231 stops moving;
step four: then, the first servo motor 111 is started, the first servo motor 111 drives the lead screw 112 to rotate, the rotation of the lead screw 112 drives the transmission nut 114 to move forward along the lead screw 112, the transmission nut 114 drives the moving block 115 to move forward, the moving block 115 drives the moving plate 116 to slide forward, the moving plate 116 drives the rack 117 to slide forward, the rack 117 drives the person and the perforating machine to move forward to approach the step and then perform excavation, and the whole process is finished.
The working principle is as follows: firstly, the whole device is pushed, the whole device is moved to a micro-step in a tunnel under the drive of a self-locking universal wheel 211, and then a worker enters the rack 117 with the perforating machine;
then, two second servo motors 221 in the installation box 210 are started simultaneously, and the directions of the two second servo motors 221 are opposite, one is positive, and the other is negative, so that the second servo motors 221 drive the first belt pulley 222 to rotate, the first belt pulley 222 drives the second belt pulley 223 to rotate through the conveyor belt, the second belt pulley 223 drives the first rotating shaft 224 to rotate, the first rotating shaft 224 drives the first chain wheels 225 on the two sides to rotate, the first chain wheels 225 drive the second chain wheels 227 to rotate through the chains 226, and the chains 226 are driven by the first chain wheels 225 and the second chain wheels 227 to move upwards;
the two side chains 226 drive the lifting plate 231 to slide upwards along the support rod 229 through the fixing block 230, so that the lifting plate 231 drives the rack 117 to move upwards, the second servo motor 221 stops working after the lifting plate is lifted to a preset position, and the lifting plate 231 stops moving;
then, the first servo motor 111 is started, the first servo motor 111 drives the lead screw 112 to rotate, the rotation of the lead screw 112 drives the transmission nut 114 to move forward along the lead screw 112, the transmission nut 114 drives the moving block 115 to move forward, the moving block 115 drives the moving plate 116 to slide forward, the moving plate 116 drives the rack 117 to slide forward, the rack 117 drives the person and the perforating machine to move forward to approach the step and then perform excavation, and the whole process is finished.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. Soft rock tunnel full-section micro-step excavation construction trolley which is characterized by comprising
The moving mechanism (100) comprises a fixing plate (110), a first servo motor (111), a screw rod (112), a supporting plate (113), a transmission nut (114), a moving block (115), a moving plate (116), a rack (117) and a limiting block (118), wherein the first servo motor (111) is fixed in the middle of the fixing plate (110), one end of the screw rod (112) is fixedly connected with an output shaft of the first servo motor (111), and one end of the screw rod (112) far away from the first servo motor (111) is rotatably connected with the supporting plate (113);
the inner side of the transmission nut (114) is in threaded transmission connection with the lead screw (112), the outer side of the transmission nut (114) is embedded in the moving block (115), the moving plate (116) is fixed at the upper end of the moving block (115), and the rack (117) is fixed on the upper end face of the moving plate (116).
2. The trolley for soft rock tunnel full-section micro-step excavation construction according to claim 1, it is characterized in that the two sides of the moving mechanism (100) are provided with height adjusting mechanisms (200), the height adjusting mechanism (200) comprises an installation box (210), a transmission mechanism (220), a fixed block (230) and a lifting plate (231), the transmission mechanism (220) is arranged in the installation box (210), the fixed block (230) is fixed on the transmission mechanism (220), the lifting plate (231) and the fixing block (230) are welded and fixed together, the fixing plate (110) and the supporting plate (113) are fixed on the upper end surface of the lifting plate (231), the moving plate (116) is in sliding connection with the lifting plate (231) through a linear rail, and the limiting block (118) is fixed on the lifting plate (231).
3. The soft rock tunnel full-section micro-step excavation construction trolley of claim 2, wherein the transmission mechanism (220) comprises a second servo motor (221), a first belt pulley (222), a second belt pulley (223), a first rotating shaft (224), a first chain wheel (225), a chain (226), a second chain wheel (227), a second rotating shaft (228) and a support rod (229), the second servo motor (221) is fixed at the inner bottom end of the installation box (210), the first belt pulley (222) is fixedly connected with an output shaft of the second servo motor (221), the second belt pulley (223) is in transmission connection with the first belt pulley (222) through a transmission belt, the second belt pulley (223) is fixed at the middle position of the first rotating shaft (224), and the end parts of the two ends of the first rotating shaft (224) are in rotation connection with the side wall of the installation box (210), the first chain wheel (225) is fixed on two sides of the first rotating shaft (224).
4. The soft rock tunnel full-section micro-step excavation construction trolley is characterized in that the second chain wheel (227) is in transmission connection with the first chain wheel (225) through the chain (226), the second chain wheel (227) is fixed to the end portions of the two ends of the second rotating shaft (228), the upper end of the supporting rod (229) is in rotary connection with the second rotating shaft (228), and the lower end of the supporting rod (229) is welded to the upper end face of the installation box (210).
5. The soft rock tunnel full-section micro-step excavation construction trolley is characterized in that self-locking universal wheels (211) are fixed at four corners of the bottom end of the installation box (210).
6. The soft rock tunnel full-section micro-step excavation construction trolley is characterized in that a connecting plate (232) is fixed to the upper end portion of the supporting rod (229), a protective cover (233) is welded between the connecting plate (232) and the installation box (210), and the chain (226) is located inside the protective cover (233).
7. The soft rock tunnel full-section micro-step excavation construction trolley according to claim 3, wherein an avoiding opening (234) matched with the chain (226) is formed in the top end of the installation box (210), and the chain (226) penetrates through the installation box (210) through the avoiding opening (234).
8. The soft rock tunnel full-section micro-step excavation construction trolley is characterized in that the two groups of transmission mechanisms (220) are arranged, and the two groups of transmission mechanisms (220) are respectively arranged on two sides of the lifting plate (231).
9. The soft rock tunnel full-section micro-step excavation construction trolley is characterized in that a sliding piece (300) is arranged on the supporting rod (229), the sliding piece (300) comprises a guide sleeve (310) and a sliding block (311), the outer cylindrical surface of the supporting rod (229) is in sliding connection with the guide sleeve (310), the guide sleeve (310) is embedded inside the sliding block (311), and the sliding block (311) is fixed on the side surface of the lifting plate (231).
10. The use method of the trolley for soft rock tunnel full-section micro-step excavation construction is carried out by using the trolley for soft rock tunnel full-section micro-step excavation construction of any one of claims 1 to 9, and is characterized by comprising the following steps of:
the method comprises the following steps: firstly, the whole device is pushed, the whole device is moved to a micro-step in a tunnel under the drive of a self-locking universal wheel 211, and then a worker enters the rack 117 with the perforating machine;
step two: then, two second servo motors 221 in the installation box 210 are started simultaneously, and the directions of the two second servo motors 221 are opposite, one is positive, and the other is negative, so that the second servo motors 221 drive the first belt pulley 222 to rotate, the first belt pulley 222 drives the second belt pulley 223 to rotate through the conveyor belt, the second belt pulley 223 drives the first rotating shaft 224 to rotate, the first rotating shaft 224 drives the first chain wheels 225 on the two sides to rotate, the first chain wheels 225 drive the second chain wheels 227 to rotate through the chains 226, and the chains 226 are driven by the first chain wheels 225 and the second chain wheels 227 to move upwards;
step three: the two side chains 226 drive the lifting plate 231 to slide upwards along the support rod 229 through the fixing block 230, so that the lifting plate 231 drives the rack 117 to move upwards, the second servo motor 221 stops working after the lifting plate is lifted to a preset position, and the lifting plate 231 stops moving;
step four: then, the first servo motor 111 is started, the first servo motor 111 drives the lead screw 112 to rotate, the rotation of the lead screw 112 drives the transmission nut 114 to move forward along the lead screw 112, the transmission nut 114 drives the moving block 115 to move forward, the moving block 115 drives the moving plate 116 to slide forward, the moving plate 116 drives the rack 117 to slide forward, the rack 117 drives the person and the perforating machine to move forward to approach the step and then perform excavation, and the whole process is finished.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010194773.3A CN111550260A (en) | 2020-03-19 | 2020-03-19 | Trolley for soft rock tunnel full-section micro-step excavation construction and use method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010194773.3A CN111550260A (en) | 2020-03-19 | 2020-03-19 | Trolley for soft rock tunnel full-section micro-step excavation construction and use method |
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| CN111550260A true CN111550260A (en) | 2020-08-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114017055A (en) * | 2021-11-24 | 2022-02-08 | 东华理工大学 | Multi-functional excavation rack device in mountain tunnel |
Citations (4)
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| CN114017055A (en) * | 2021-11-24 | 2022-02-08 | 东华理工大学 | Multi-functional excavation rack device in mountain tunnel |
| CN114017055B (en) * | 2021-11-24 | 2023-04-25 | 东华理工大学 | Multi-functional excavation rack device in mountain tunnel |
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