CN220081426U - Tunnel lower step mechanized excavation construction device - Google Patents

Abstract

The utility model belongs to the technical field of tunnel construction, and particularly relates to a tunnel lower step mechanized excavation construction device. The device comprises an excavating mechanism, a cockpit and a winch slag discharging mechanism, wherein the excavating mechanism is positioned on the right side of the cockpit, the excavating mechanism is positioned above the excavating mechanism, the excavating mechanism comprises a sliding component, a transverse telescopic component, a vibrator component, a drilling machine sliding platform, a strip type drilling machine platform, a drilling machine rear end air pump pushing component, a drilling machine and a drilling rod which are sequentially connected, the excavating mechanism comprises an excavating arm base, a first folding arm, a second folding arm and a third folding arm are sequentially hinged above the excavating arm base, and the tail end of the third folding arm is provided with an excavating claw; the winch slag discharging mechanism comprises a front section width gradual change receiving hopper, a receiving hopper conveying section, a winch inclined section and a discharge hole section which are connected in sequence. The utility model does not need large-scale manual drilling and blasting construction, realizes mechanized operation of lower step excavation, has continuous operation and low dust content in the tunnel, improves the excavation efficiency and reduces the cost.

Description

Tunnel lower step mechanized excavation construction device

Technical Field

The utility model belongs to the technical field of tunnel construction, and particularly relates to a tunnel lower step mechanized excavation construction device.

Background

At present, during the excavation construction of a tunnel lower step, a series of complex procedures such as drilling, blasting, ventilation and smoke discharging, slag discharging and the like are needed, and the process has the following problems: (1) And large-scale manual drilling construction is needed again, so that the manpower input is greatly increased and the required construction time is prolonged. (2) The dust is greatly diffused after the lower step explosive charge is initiated, so that the quality of the construction environment in the tunnel is reduced, and long-time ventilation and dust fall are required, thereby improving the construction cost. (3) Before and after the construction of the lower step blasting, related procedures in front of the tunnel face and behind the lower step are stopped, so that the overall construction time of the tunnel is increased. (4) The lower step blasting construction forms a large amount of blast slag, and the blast slag is required to be matched and cleared by a loader and a truck, so that the construction period is prolonged.

Disclosure of Invention

Aiming at the problems, the utility model aims to provide the mechanical excavation construction device for the lower steps of the tunnel, which does not need large-scale manual drilling and blasting construction, realizes the mechanical excavation operation of the lower steps, has continuous operation and low dust content in the tunnel, improves the excavation efficiency and reduces the cost.

The technical scheme of the utility model is as follows: the utility model provides a tunnel lower step mechanized excavation construction equipment, includes excavation mechanism, digs mechanism, cockpit and hoist slag discharging mechanism, excavation mechanism is located the cockpit right side, dig the mechanism and be located excavation mechanism top, hoist slag discharging mechanism is close to tunnel excavation face's one end is located excavation mechanism below, hoist slag discharging mechanism is kept away from tunnel excavation face's one end is located the cockpit left side, its below is equipped with out the cinder car, excavation mechanism includes sliding component, horizontal flexible subassembly, vibrator subassembly, rig sliding platform, strip rig platform, rig rear end air pump pushing component, rig and drilling rod that connect gradually, dig the mechanism and include dig the arm base, dig arm base top and articulated first arm, second arm and third arm of folding in proper order, the end of third arm of folding is equipped with the claw of diging; the winch slag discharging mechanism comprises a front section width gradual change receiving hopper, a receiving hopper conveying section, a winch inclined section and a discharge port section which are sequentially connected, a receiving hopper support is arranged at the joint of the front section width gradual change receiving hopper and the receiving hopper conveying section, an upper-pressure winch assembly is arranged at the joint of the receiving hopper conveying section and the winch inclined section, a lower-pressure winch assembly is arranged at the joint of the winch inclined section and the discharge port section, and winch rubber belts are respectively sleeved on the outer sides of the receiving hopper conveying section, the winch inclined section and the discharge port section.

The sliding assembly comprises a vertical chute plate, a vertical slide core backboard, a transverse chute plate and a transverse slide core backboard which are sequentially connected, wherein the vertical chute plate comprises a vertical chute backboard, two vertical slideways which are parallel to each other are arranged on the vertical chute backboard, vertical support plates are respectively arranged in the directions of the left end face and the right end face of the vertical chute backboard, a vertical jack is fixedly connected to the vertical support plates, a vertical slide core corresponding to the vertical slideways is arranged on the vertical slide core backboard, a first connecting limit orifice plate corresponding to the vertical support plates is arranged on the vertical slide core backboard, a vertical limit nail is arranged in the first connecting limit orifice plate, the vertical slide core backboard passes through the vertical limit nail and the output end of the vertical jack is fixedly connected, the transverse chute plate comprises a transverse sliding backboard, two transverse sliding grooves which are parallel to each other are formed in the lateral sliding backboard, transverse support jacks are respectively arranged in the directions of the upper end face and the lower end face of the transverse sliding backboard, a transverse support core is fixedly connected to the transverse support plate, a transverse limit nail is fixedly connected to the transverse support core is arranged on the transverse support plate, and the transverse support core is fixedly connected to the transverse support plate through the transverse limit orifice plate, and the transverse limit nail is fixedly connected to the transverse support plate.

The horizontal flexible subassembly is including setting up a plurality of horizontal flexible jack bottom sleeves on slip subassembly right side, be equipped with horizontal flexible jack in the horizontal flexible jack bottom sleeve, horizontal flexible jack bottom sleeve side bottom is equipped with horizontal flexible jack afterbody fiber nail, horizontal flexible jack is in horizontal flexible jack bottom sleeve bottom one side is equipped with horizontal flexible jack afterbody connecting piece, the output side of horizontal flexible jack is equipped with horizontal flexible jack top pin.

The vibrator assembly comprises an oscillating base back plate, a transverse telescopic jack end socket sleeve corresponding to the transverse telescopic jack bottom socket sleeve is arranged on the left side of the oscillating base back plate, transverse jack end connecting limiting holes are formed in the lateral surface of the transverse telescopic jack end socket sleeve, an output end of the transverse telescopic jack is fixedly connected with the transverse telescopic jack end socket sleeve through the transverse jack end connecting limiting holes, a plurality of oscillator bottom sockets are arranged on the top of the oscillating base back plate, oscillator limiting nails are arranged on the lateral surface of the oscillator bottom socket, an oscillator is arranged inside the oscillator bottom socket, an oscillator connecting piece is arranged on the lower portion of the oscillator, an oscillator end connecting limiting nail is arranged at the output end of the upper portion of the oscillator, and two mutually parallel vertical oscillating base plate sliding grooves are formed in the right side of the oscillating base back plate.

The drilling machine sliding platform comprises a drilling machine sliding platform back plate, a plurality of hydraulic jack bottom sleeves are arranged at the top of the drilling machine sliding platform back plate, sleeve limiting nails are arranged on the side face of the bottom of each hydraulic jack bottom sleeve, a hydraulic telescopic jack is arranged in each hydraulic jack bottom sleeve, jack bottom connecting pieces are arranged at the lower portion of each hydraulic telescopic jack, jack top limiting nails are arranged at the output end of each hydraulic telescopic jack, a drilling machine sliding platform sliding core is arranged at the position, corresponding to the vertical oscillation base plate sliding groove, of the left side of the drilling machine sliding platform back plate, oscillator end clamping rings are arranged at the position, corresponding to the oscillators, of the left side of the drilling machine sliding platform back plate, and drilling machine sliding platform back sliding grooves are formed in the right side of the drilling machine sliding platform back plate.

The strip type drilling machine platform comprises a strip type drilling machine platform transverse plate and a strip type drilling machine platform vertical plate, the strip type drilling machine platform transverse plate and the strip type drilling machine platform vertical plate are L-shaped, a hydraulic telescopic jack bayonet is arranged on the strip type drilling machine platform transverse plate, the top output end of the hydraulic telescopic jack is fixedly connected with the hydraulic telescopic jack bayonet through a jack top limit nail, the left side of the strip type drilling machine platform vertical plate is provided with a drilling machine platform vertical sliding core, the drilling machine platform vertical sliding core is slidably connected with a drilling machine sliding platform back chute, the right side of the strip type drilling machine platform vertical plate is provided with a plurality of strip type drilling machine platform sleeves, the drilling machine is characterized in that a drilling machine rear end air pump pushing component is arranged in the strip type drilling machine platform sleeve, the drilling machine rear end air pump pushing component comprises an air pump inner bin, an air pump air inlet pipeline is arranged on the side face of the air pump inner bin, an air pump tail end connecting piece is arranged at the left bottom of the air pump inner bin, an air pump limit nail is arranged on the side face of the air pump tail end connecting piece, an air bin end clamping head is arranged at the end part of the right side of the air pump inner bin, an air bin telescopic rod convex clamping head is connected with an air bin telescopic rod, an air bin telescopic rod is arranged in the air bin telescopic rod convex clamping head, and an air pressure telescopic rod end limit nail is arranged on the side face of the right end of the air bin telescopic rod.

The drilling machine comprises a drilling machine motor, a motor air pump sleeve is arranged on the left side of the drilling machine motor, the motor air pump sleeve is fixedly connected with the right end of an air bin telescopic rod through an air pressure telescopic rod end limiting pin, the right side of the drilling machine motor is provided with the motor sleeve, a dowel bar is arranged in the motor sleeve, a square bayonet of a drill rod is arranged at the center of the right side of the dowel bar, a water inlet bin is arranged on the side face of the dowel bar, the drill rod comprises a drill rod wall, a square drill rod clamping head is arranged on the left side of the drill rod wall, a cross drill bit is arranged on the right side of the drill rod wall, and a drill rod center water spraying hole is reserved in the center of the cross drill bit.

The scraper arm base upper surface is equipped with the fixed hinge, first arm folding lower extreme is equipped with the scraper arm dop, the scraper arm dop through the scraper arm pin with the fixed hinge is connected, be equipped with the arm folding connection hinge between first arm folding and the second arm folding, first arm folding upper portion side is equipped with the scraper arm jack base, be equipped with the scraper arm jack on the scraper arm jack base, the output of scraper arm jack with be equipped with the scraper arm jack connection hinge between the second arm folding lower part, the third arm folding right-hand member is equipped with the scraper arm end sleeve, the scraper arm end sleeve side is equipped with horizontal push-pull jack, the output of horizontal push-pull jack is equipped with the spacing nail, be equipped with horizontal slide bar in the scraper arm end sleeve, horizontal slide bar right-hand member is equipped with horizontal slide bar end cutting ferrule and horizontal slide bar end bolt in proper order, horizontal slide bar end bolt is connected with horizontal slide bar nut, horizontal slide bar jack left end is connected with the planer claw, the planer claw includes planer claw tailboard, planer claw tailboard side is equipped with planer claw joint hinge, be equipped with the scraper arm tailboard, the scraper arm end is equipped with the scraper arm end, the scraper arm end is equipped with the pivot.

The automatic elevator is characterized in that the bucket support comprises two bottom support ribs positioned below the junction of the front section width gradual change bucket and the bucket conveying section, an upper sleeve is connected to the upper portion of the bottom support ribs, a rotary fixing core is arranged between the upper sleeves, a rotary sleeve is arranged outside the rotary fixing core, an upper pressing winch component comprises a winch rotary sleeve, a winch fixing core is arranged in the winch rotary sleeve, the winch fixing core is connected with a winch fixing core sleeve close to one end of a cockpit, the winch fixing core sleeve is fixedly connected with a car body side wall connecting block, an upper pressing roller is further arranged above the junction of the bucket conveying section and the inclined section, the lower roller sleeve comprises a lower pressing roller sleeve, the lower roller is provided with a roller bolt, the lower roller is positioned below the junction of the winch inclined section and the discharge port section, the upper sleeve is provided with a transmission core, one end of the transmission core is close to the driven wheel, the motor is connected with a side wall connecting block through a motor, two sides of the transmission side wall connecting block are connected with a rubber side of the guardrail, and the side wall connecting block is fixedly connected with the side of the winch.

The steering cabin is internally provided with a direction control assembly and a brake assembly, the direction control assembly comprises a steering wheel, a steering rod is connected to the lower portion of the steering wheel, a driving wheel is arranged on the outer side of the middle portion of the steering rod, a steering rod plug is arranged on the lower portion of the steering rod, a two-wheel type transmission belt is arranged on the outer side of the driving wheel, a one-level driven rod upper gear is connected to the two-wheel type transmission belt in an inner connection mode, a one-level driven rod is connected to the one-level driven rod upper gear, a one-level driven rod lower gear is arranged on the lower portion of the one-level driven rod, a one-level driven rod plug is arranged at the bottom of the one-level driven rod, a three-wheel type transmission belt is arranged on the outer side of the one-level driven rod, two secondary driven gears are connected with a two-stage driven rod, a transverse connecting rod is arranged on the lower portion of the three-wheel type transmission belt, a left front wheel is connected to the transverse connecting rod, a right front wheel is connected to the transverse connecting rod on the left side of the two-wheel type transmission belt, the brake assembly comprises a motor platform, a brake power motor and a front force motor are arranged on the motor platform, a brake power motor is arranged on the motor, a brake motor is provided with a brake pad, a brake pad is arranged on the brake power motor, a brake pad is arranged on the motor, a brake pad is arranged on the front side, a rear wheel is provided with a brake pad, a front wheel is connected with a rear wheel, a rear wheel is provided with a two-side J type friction belt, and a rear J type brake pad, and a front-type brake pad is respectively, and a rear J type of a front motor.

The utility model has the technical effects that: 1. according to the utility model, the drill rod is driven by the strip type drilling machine platform drilling machine to perform drilling and vibration of the vibrator assembly to shake and break the excavated rock mass, so that compared with the existing manual drilling and blasting construction, the working efficiency is high, the dust content in the tunnel is low, and no special dust removal operation is required; 2. according to the utility model, through adjusting the sliding assembly, the transverse telescopic assembly and the drilling machine sliding platform, the excavation mechanism can be aligned and attached to a lower step area to be excavated rapidly, and the strip drilling machine platform can enable the strip drilling machine to form a gradual change trend from left to right from top to bottom so as to meet the excavation requirement of the arc profile of the lower step; 3. according to the utility model, the digging mechanism is adopted, the first folding arm, the second folding arm and the third folding arm are adopted to drive the digging claw, so that waste slag which does not fall to the winch slag discharging mechanism in a transverse digging area can be conveniently treated, the cleaning requirement of digging is met, the waste slag can be cleaned while digging, and the construction efficiency is high; 4. according to the utility model, all the waste slag of the lower steps are sent to the rear of the mechanical excavation construction device of the lower steps of the tunnel through the winch slag discharging mechanism, and the slag discharging vehicle is used for clearing, so that the operation of the excavation mechanism and the excavation mechanism is not influenced.

Further description will be made below with reference to the accompanying drawings.

Drawings

Fig. 1 is a schematic structural diagram of a mechanical excavation construction device for a tunnel lower step according to an embodiment of the utility model.

Fig. 2 is a schematic structural diagram of an excavation mechanism of a mechanical excavation construction device for a tunnel lower step according to an embodiment of the present utility model.

Fig. 3 is a schematic structural view of a vertical runner plate according to an embodiment of the present utility model.

Fig. 4 is a schematic structural diagram of a vertical sliding core back plate according to an embodiment of the present utility model.

Fig. 5 is a schematic structural view of a transverse runner plate according to an embodiment of the present utility model.

Fig. 6 is a structural side view of a transverse runner plate according to an embodiment of the present utility model.

Fig. 7 is a schematic structural view of a transverse expansion assembly according to an embodiment of the present utility model.

Fig. 8 is a front view of the vibrator assembly of the embodiment of the present utility model.

Fig. 9 is a structural rear view of a vibrator assembly according to an embodiment of the present utility model.

Fig. 10 is a structural front view of a rig slip platform according to an embodiment of the present utility model.

Fig. 11 is a structural rear view of a rig slip platform according to an embodiment of the present utility model.

Fig. 12 is a schematic structural view of a bench of a bar drilling machine and a pushing assembly of an air pump at the rear end of the drilling machine according to an embodiment of the utility model.

Fig. 13 is a schematic view of the structure of the drill and drill pipe according to the embodiment of the utility model.

Fig. 14 is a schematic structural view of a digging mechanism according to an embodiment of the present utility model.

Fig. 15 is a schematic structural view of a third folding arm and a planing claw according to an embodiment of the present utility model.

Fig. 16 is a schematic structural view of a winch slag discharging mechanism according to an embodiment of the present utility model.

Fig. 17 is a schematic view of the structure of the bucket support according to the embodiment of the utility model.

Fig. 18 is a schematic structural view of a pressing winch assembly according to an embodiment of the present utility model.

Fig. 19 is a schematic structural diagram of a direction control assembly according to an embodiment of the present utility model.

FIG. 20 is a schematic view of a brake assembly according to an embodiment of the present utility model.

Reference numerals: 1-excavating a mechanism; 2-digging and planing mechanism; 3-cockpit; 4-a winch slag discharging mechanism; 5-a slag discharging vehicle; 6-applied road surface; 7-not excavating a lower step; 8-a step-up tunnel face; 11-vertical chute plates; 12-a vertical sliding core backboard; 13-a transverse runner plate; 14-a transverse telescopic assembly; 15-vibrator assembly; 16-a rig slip platform; 17-bar rig floor; 18-a pushing component of the air pump at the rear end of the drilling machine; 19-a drilling machine; 110-a drill rod; 111-a vertical chute backboard; 112-vertical slideway; 113-vertical jack; 114-vertical support plate; 121-a first successive limiting orifice plate; 122-vertical limit nails; 123-vertical slide core; 131-a transverse slip backplate; 132-transverse slip grooves; 133-transverse support plate; 134-transverse jack; 135-a transverse slide core back plate; 136-transverse spacing nails; 137-a second successive limiting orifice plate; 138-transverse slide core; 141-a bottom sleeve of a transverse telescopic jack; 142-fiber nails at the tail of the transverse telescopic jack; 143-a transverse telescopic jack tail connector; 144-a transverse telescopic jack; 145-transverse telescopic jack top head pins; 151-oscillating a base backplate; 152-oscillator bottom sleeve; 153-oscillator spacing pin; 154-oscillator connection; 155 an oscillator; 156-connecting the oscillator end with a limit pin; 157-a transverse telescopic jack end socket; 158, connecting a limiting hole with the top end of the transverse jack; 159-vertical oscillation base plate chute; 161-hydraulic jack bottom sleeve; 162-sleeve spacing nail; 163-jack bottom connection; 164-hydraulic telescopic jack; 165-jack end limiting nails; 166-oscillator end snap ring; 167-rig slip platform backing plate; 168-a rig slip platform slide; 169-a back chute of the drilling machine sliding platform; 171-bar rig floor cross plate; 172-hydraulic telescopic jack bayonets; 173-a vertical slide core of the drilling machine platform; 174-strip drilling rig floor risers; 175-a drill rig floor sleeve; 181-connecting piece of the tail end of the air pump; 182-an air pump inner bin; 183-a cartridge end head chuck; 184-air pump limit nails; 185-air inlet pipeline of pneumatic pump; 186-convex clamping head of the gas cabin telescopic rod; 187-a gas warehouse telescopic rod; 188-limit nails at the ends of the pneumatic telescopic rods; 191-a rig motor; 192-motor air pump sleeve; 193-motor sleeve; 194-dowel bars; 195-square bayonet of drill rod; 196-a water inlet bin; 1101-square chuck of the drilling rod; 1102-drill pipe wall; 1103-cross drill bit; 1104-a water spraying hole in the center of the drill rod; 21-a planing arm base; 22-fixing a hinge; 23-planing arm clamping head; 24-planing arm pin; 25-a first folding arm; 26-folding arm connecting hinge; 27-planing arm jack base; 28-planing arm jack; 29-planing arm jack connecting hinge; 210-a second folding arm; 211-a third folding arm; 212-planing claw; 2111-transverse push-pull jack; 2112-stop pin; 2113-planing arm end sleeve; 2114-transverse glide rod end nut; 2115-transverse glide rod end bolt; 2116-transverse slip rod end ferrule; 2117—a lateral slide bar; 2121-digging a claw clamping groove; 2122-claw tailboard; 2123-claw sleeve; 2124-pins; 2125-pin holes; 2126-scraper jack; 2127-jack backing plate; 2128-scraper tail trepanning; 2129-scraper; 21210-the scraper is hinged; 31-a directional control assembly; 311-steering wheel; 312-steering column; 313-driving wheel; 314—a steering column plug; 315-a first-stage driven rod upper gear; 316—a primary driven rod; 317-lower gear of primary driven rod; 318-primary driven bar plug; 319-two-wheeled drive belt; 3110-a secondary driven gear; 3111-a secondary follower rod; 3112-transverse tie bars; 3113-left front wheel; 3114-right front wheel; 3115-three-wheeled drive belt; 32-a brake assembly; 321-a brake power motor; 322-brake motor drive wheel; 323 braking the belt; 324-guiding clamping groove; 325-J type brake pad; 326-rubber friction plate; 327-forward power motor; 328-forward power motor drive wheel; 329-wheel axle brake driven wheel; 3210-a drive belt; 3211-a motor platform; 3212-left rear wheel; 3213-right rear wheel; 3214-rear axle; 41-a front section width gradual change receiving hopper; 42-a catcher delivery section; 43-a catcher support; 44-vehicle body side wall connection blocks; 45-winding a fixed core sleeve; 46-winding a fixed core; 47-pressing the roller; 48-winding a rotating sleeve; 49-winding inclined sections; 410-pressing down the roller; 411-connecting blocks on the rear wall of the vehicle body; 412-hoisting side fixing bars; 413-a motor; 414-a discharge port section; 415-winding a rubber belt; 416-pressing down the roller sleeve; 417-a drive core; 418—a catcher guard rail; 419-roller bolts; 420-rotating a fixed core end bolt; 421-driven wheel; 431—a bottom support land; 432-upper sleeve; 433-rotating the sleeve; 434-rotating the stationary core.

Description of the embodiments

Embodiment 1 as shown in fig. 1, 2, 14 and 16, a mechanized excavation construction device for a lower step of a tunnel comprises an excavation mechanism 1, an excavation mechanism 2, a cockpit 3 and a winch slag discharging mechanism 4, wherein the excavation mechanism 1 is positioned on the right side of the cockpit 3, the excavation mechanism 2 is positioned above the excavation mechanism 1, one end, close to a tunnel excavation surface, of the winch slag discharging mechanism 4 is positioned below the excavation mechanism 1, one end, far away from the tunnel excavation surface, of the winch slag discharging mechanism 4 is positioned on the left side of the cockpit 3, a slag discharging truck 5 is arranged below the winch slag discharging mechanism, the excavation mechanism 1 comprises a sliding component, a transverse telescopic component 14, a vibrator component 15, a drill rig sliding platform 16, a strip drill rig platform 17, a drill rig rear end air pump component 18, a drill rig 19 and a drill rod 110 which are sequentially connected, the excavation mechanism 2 comprises a planing arm base 21, a first folding arm 25, a second folding arm 210 and a third folding arm 211 are sequentially hinged above the planing arm base 21, and a tail end of the third folding arm 211 is provided with a claw 212; the winch slag discharging mechanism 4 comprises a front section width gradual change receiving hopper 41, a receiving hopper conveying section 42, a winch inclined section 49 and a discharge hole section 414 which are sequentially connected, a receiving hopper support 43 is arranged at the joint of the front section width gradual change receiving hopper 41 and the receiving hopper conveying section 42, an upward-pressing winch assembly is arranged at the joint of the receiving hopper conveying section 42 and the winch inclined section 49, a downward-pressing winch assembly is arranged at the joint of the winch inclined section 49 and the discharge hole section 414, and winch rubber belts 415 are respectively sleeved on the outer sides of the receiving hopper conveying section 42, the winch inclined section 49 and the discharge hole section 414.

In the practical use process, the mechanized excavation construction device for the tunnel lower steps drives into the position below the non-excavated lower steps 7 through the applied pavement 6, the excavation mechanism 1 is aligned and attached to the lower step area to be excavated by gradually adjusting the sliding component, the transverse telescopic component 14 and the drilling machine sliding platform 16, and the strip drilling machine platform 17 is sequentially adjusted to form a gradual change trend from left to right from top to bottom of the strip drilling machine so as to meet the excavation requirement of the arc profile of the lower steps; starting an air pump pushing component 18 at the rear end of the drilling machine and the drilling machine 19 to drive a drill rod 110 to drill until all drill rods are drilled into the rock mass of the lower step, starting a vibrator component 15 to enable the excavated rock mass to be crushed and fall to a lower winch slag discharging mechanism 4, configuring a corresponding slag discharging vehicle 5, and conveying waste slag out of a hole; aiming at the waste slag which does not fall to the winch slag discharging mechanism 4 in the lower steps, the digging mechanism 2 is called, the waste slag in the transverse digging area is completely dug into the winch slag discharging mechanism 4 through the digging claw 212 until all the waste slag in the lower steps is cleared, and the excavation construction of the lower steps is sequentially and circularly completed. According to the utility model, the drill rod is driven by the strip type drilling machine platform drilling machine to perform drilling and vibration of the vibrator assembly to shake and break the excavated rock mass, so that compared with the existing manual drilling and blasting construction, the working efficiency is high, the dust content in the tunnel is low, and no special dust removal operation is required; according to the utility model, all the waste slag of the lower steps are sent to the rear of the mechanized excavation construction device of the lower steps of the tunnel through the winch slag discharging mechanism, and the slag discharging vehicle is used for clearing, so that the operation of the excavation mechanism and the excavation mechanism is not influenced, the waste slag can be cleared while the excavation is performed, and the construction efficiency is high.

Embodiment 2 is preferred, in this embodiment, as shown in fig. 3, fig. 4, fig. 5, and fig. 6, on the basis of embodiment 1, preferably, the sliding assembly includes a vertical chute plate 11, a vertical chute plate 12, a lateral chute plate 13, and a lateral chute plate 135 that are sequentially connected, where the vertical chute plate 11 includes a vertical chute plate 111, two vertical chutes 112 that are parallel to each other are disposed on the vertical chute plate 111, two vertical chute plates 112 are disposed on the bottom side surfaces of the vertical chute plate 112 in a direction that is close to the left and right end surfaces of the vertical chute plate 111, vertical support plates 114 are respectively provided with vertical support plates 114, vertical jacks 113 are fixedly connected to the vertical chute plate 114, vertical chute plates 123 corresponding to the vertical chute plates 112 are disposed on the vertical chute plate 12, first connection limiting orifice plates 121 are disposed with vertical limiting nails 122, the vertical chute plates 12 are fixedly connected to the output ends of the vertical chute plate 113 through the vertical limiting nails 122, two lateral slide plates 135 are disposed on the lateral slide plates 135 corresponding to the lateral end surfaces of the back plate 132, lateral slide plates 133 are disposed on the lateral support plates 132, and the lateral support plates 133 are disposed on the lateral sides of the lateral support plates 132, and the lateral support plates 132 are disposed on the lateral sides of the lateral support plates 132, the horizontal sliding core back plate 135 is fixedly connected with the output end of the horizontal jack 134 through the horizontal limiting nail 136.

In the actual use process, the vertical sliding core back plate 12 is provided with the vertical sliding core 123 corresponding to the vertical sliding way 112, the output end of the vertical jack 113 is fixedly connected with the vertical sliding core back plate 12, the transverse sliding core back plate 135 is provided with the transverse sliding core 138 corresponding to the transverse sliding groove 132, and the output end of the transverse jack 134 is fixedly connected with the transverse sliding core back plate 135, so that the vertical sliding core back plate 12 and the transverse sliding core back plate 135 of the sliding assembly are adjusted in the vertical direction and the transverse direction, and the direction adjustment of the excavation mechanism 1 and the lower step area to be excavated is realized.

Embodiment 3 preferably, in this embodiment, as shown in fig. 7, on the basis of embodiment 1 or embodiment 2, preferably, the lateral expansion assembly 14 includes a plurality of lateral expansion jack bottom sleeves 141 disposed on the right side of the sliding assembly, a lateral expansion jack 144 is disposed in the lateral expansion jack bottom sleeves 141, a lateral expansion jack tail fiber nail 142 is disposed on the bottom of the lateral expansion jack bottom sleeves 141, a lateral expansion jack tail connector 143 is disposed on one side of the bottom of the lateral expansion jack bottom sleeves 141 by the lateral expansion jack 144, and a lateral expansion jack top pin 145 is disposed on the side of the output end of the lateral expansion jack 144.

In actual use, the lateral expansion assembly 14 of the present utility model implements the distance adjustment between the excavation mechanism 1 and the lower step area to be excavated by means of the plurality of lateral expansion jacks 144.

In the preferred embodiment 4, as shown in fig. 8 and 9, in this embodiment, preferably, the vibrator assembly 15 includes an oscillating base back plate 151, a lateral telescopic jack end socket 157 corresponding to the lateral telescopic jack bottom socket 141 is disposed on the left side of the oscillating base back plate 151, a lateral jack end connection limiting hole 158 is disposed on the bottom side of the lateral telescopic jack end socket 157, the lateral telescopic jack end pin 145 fixedly connects the output end of the lateral telescopic jack 144 with the lateral telescopic jack end socket 157 through the lateral jack end connection limiting hole 158, a plurality of oscillator bottom sockets 152 are disposed on the top of the oscillating base back plate 151, an oscillator limiting pin 153 is disposed on the bottom side of the oscillator bottom socket 152, an oscillator 155 is disposed inside the oscillator bottom socket 152, an oscillator connecting piece 154 is disposed on the lower portion of the oscillator 155, an oscillator end limiting pin 156 is disposed on the upper output end of the oscillator bottom socket, and two mutually parallel vertical oscillation base plates 159 are disposed on the right side of the oscillating base back plate 151.

In the actual use process, the lateral surface of the bottom of the end socket 157 of the transverse telescopic jack is provided with the transverse jack end connecting limiting hole 158, and the end pin 145 of the transverse telescopic jack fixedly connects the output end of the transverse telescopic jack 144 with the end socket 157 of the transverse telescopic jack through the transverse jack end connecting limiting hole 158, so as to realize the connection of the transverse telescopic assembly 14 and the vibrator assembly 15.

Embodiment 5 preferably, in this embodiment, as shown in fig. 10 and fig. 11, on the basis of embodiment 1 or embodiment 4, preferably, the rig sliding platform 16 includes a rig sliding platform back plate 167, a plurality of hydraulic jack bottom sleeves 161 are provided at the top of the rig sliding platform back plate 167, sleeve limit nails 162 are provided at the bottom sides of the hydraulic jack bottom sleeves 161, hydraulic telescopic jacks 164 are provided in the hydraulic jack bottom sleeves 161, jack bottom connecting pieces 163 are provided at the lower parts of the hydraulic telescopic jacks 164, jack top limit nails 165 are provided at the top output ends of the hydraulic telescopic jacks 164, a rig sliding platform slide core 168 is provided at the position corresponding to the vertical oscillation base plate slide groove 159 on the left side of the rig sliding platform back plate 167, an oscillator end clasp 166 is provided at the position corresponding to the oscillator 155 on the left side of the rig sliding platform back plate 167, and a rig sliding platform back slide groove 169 is provided on the right side of the rig sliding platform back plate 167.

In the actual use process, a drill sliding platform sliding core 168 is arranged at the left side of the drill sliding platform back plate 167 corresponding to the vertical oscillation base plate chute 159, an oscillator end clamping ring 166 is arranged at the left side of the drill sliding platform back plate 167 corresponding to the oscillator 155, and the oscillator 155 is connected with the drill sliding platform 16 through the oscillator end clamping ring 166.

Embodiment 6 is preferred, in this embodiment, as shown in fig. 12, on the basis of embodiment 1 or embodiment 5, preferably, the strip rig platform 17 includes strip rig platform diaphragm 171 and strip rig platform riser 174, strip rig platform diaphragm 171 and strip rig platform riser 174 become L shape, be equipped with hydraulic jack bayonet 172 on the strip rig platform diaphragm 171, hydraulic jack 164 top output with hydraulic jack bayonet 172 passes through jack top end spacing pin 165 fixed connection, strip rig platform riser 174 left side is equipped with rig platform vertical slide core (173), but rig platform vertical slide core 173 with rig platform back spout 169 sliding connection, strip rig platform riser 174 right side is equipped with a plurality of strip rig platform sleeves 175, be equipped with rig rear end air pump assembly 18 in the strip rig platform sleeve 175, rig rear end air pump assembly 18 includes cartridge 182 in the air pump, cartridge 182 side is equipped with air pump tube way 185, tail end portion end 182 is equipped with the flexible end socket joint 186, the end is equipped with the flexible end socket of male end cap 183 in the air pump cartridge is equipped with the pneumatic end socket joint 186, the flexible end socket 182 is equipped with the male end socket joint 186, the flexible end socket joint 186 is equipped with the flexible end socket joint 186.

In the actual use process, the rear end air pump pushing component 18 of the drilling machine is arranged in the strip type drilling machine platform sleeve 175, the rear end air pump pushing component 18 of the drilling machine comprises an air pump inner bin 182, an air pump air inlet pipeline 185 is arranged on the side surface of the air pump inner bin 182, an air pump tail end connecting piece 181 is arranged at the bottom of the left side of the air pump inner bin 182, a limit nail 184 is arranged on the side surface of the air pump tail end connecting piece 181, and the strip type drilling machine platform 17 is connected with the rear end air pump pushing component 18 of the drilling machine through the limit nail 184.

Embodiment 7 preferably, in this embodiment, as shown in fig. 13, on the basis of embodiment 1 or embodiment 6, preferably, the drilling machine 19 includes a drilling machine motor 191, a motor air pump sleeve 192 is disposed on the left side of the drilling machine motor 191, the motor air pump sleeve 192 is fixedly connected with the right end of the air bin telescopic rod 187 through an air pressure telescopic rod end limiting nail 188, a motor sleeve 193 is disposed on the right side of the drilling machine motor 191, a dowel bar 194 is disposed in the motor sleeve 193, a square drill rod bayonet 195 is disposed in the center of the right side of the dowel bar 194, a water inlet bin 196 is disposed on the side of the dowel bar 194, the drill rod 110 includes a drill rod wall 1102, a square drill rod chuck 1101 is disposed on the left side of the drill rod wall 1102, a cross drill bit 1103 is disposed on the right side, and a drill rod center water spraying hole 1104 is reserved in the center of the cross drill bit 1103.

In the actual use process, the drill motor 191 of the utility model rotates to drive the motor air pump sleeve 192 and the force rod 194 to drive the drill rod 110 to rotate, and the cross drill 1103 breaks the rock and the water spraying hole 1104 at the center of the drill rod sprays water to assist in breaking the rock.

In the embodiment 8, as shown in fig. 14 and 15, preferably, in the embodiment 1 or the vision 7, the upper surface of the planer base 21 is provided with a fixing hinge 22, the lower end of the first folding arm 25 is provided with a planer arm chuck 23, the planer arm chuck 23 is connected with the fixing hinge 22 through a planer arm pin 24, a folding arm connecting hinge 26 is arranged between the first folding arm 25 and the second folding arm 210, a planer arm jack base 27 is arranged on the upper side surface of the first folding arm 25, a planer arm jack 28 is arranged on the planer arm jack base 27, a planer arm jack connecting hinge 29 is arranged between the output end of the planer arm jack 28 and the lower part of the second folding arm 210, the right end of the third folding arm 211 is provided with a planer arm end socket 2113, the lateral surface of the planer arm end socket 2113 is provided with a transverse push-pull jack 2111, the output end of the transverse push-pull jack 2111 is provided with a limit pin 2112, the planing arm end socket 2113 is internally provided with a transverse sliding rod 2117, the right end of the transverse sliding rod 2117 is sequentially provided with a transverse sliding rod end clamping sleeve 2116 and a transverse sliding rod end bolt 2115, the transverse sliding rod end bolt 2115 is connected with a transverse sliding rod end nut 2114, the left end of the transverse sliding rod 2117 is connected with a planing claw 212, the planing claw 212 comprises a planing claw tail plate 2122, the side surface of the planing claw tail plate 2122 is provided with a planing claw clamping groove 2121, the middle part of the planing claw tail plate 2122 is provided with a planing claw socket 2123, the planing claw socket 2123 is sheathed with the transverse sliding rod 2117, the upper part of the right end of the planing claw tail plate 2122 is provided with a jack back plate 2127, the jack back plate 2127 is provided with a scraping bucket top 2126, the right end of the planing claw tail plate 2122 is provided with a pin hole 2125, the pin 2124 is arranged in the pin 2125, the right end of the planing claw tail plate 2122 is connected with a scraping bucket 2129 through the pin 2124, the scraper 2129 is provided with a scraper tail sleeve hole 2128 corresponding to the pin hole 2125, the scraper tail sleeve hole 2128 is provided with a scraper hinge 21210, and the output end of the scraper jack 2126 is connected with the scraper hinge 21210.

In the actual use process, the digging mechanism 2 is adopted, the first folding arm 25, the second folding arm 210 and the third folding arm 211 are adopted to drive the digging claw 212, and the expansion and contraction of the digging arm jack 28 and the scraper bucket jack 2126 are controlled, so that waste slag which does not fall to the winch slag discharging mechanism in a transverse digging area can be conveniently treated, the cleaning requirement of digging is met, the waste slag can be cleaned while digging is carried out, and the construction efficiency is high.

Embodiment 9 is preferable, in this embodiment, as shown in fig. 16 to 18, on the basis of embodiment 1 or embodiment 8, preferably, the bucket support 43 includes two bottom support ledges 431 located below the connection between the bucket 41 and the bucket conveying section 42 with gradually changed width in the front section, an upper sleeve 432 is connected above the bottom support ledges 431, a rotation fixing core 434 is disposed between the upper sleeves 432, a rotation sleeve 433 is disposed outside the rotation fixing core 434, the upper winch assembly includes a winch rotation sleeve 48, a winch fixing core 46 is disposed in the winch rotation sleeve 48, one end of the winch fixing core 46 near the cockpit 3 is connected with a winch fixing core sleeve 45, the winch fixing core sleeve 45 is fixedly connected with a vehicle body side wall connecting block 44, an upper pressing roller 47 is disposed above the connection between the bucket conveying section 42 and the winch inclined section 49, the lower pressing roller sleeve 416 is in a zigzag shape, a lower roller sleeve 416 is disposed with a lower pressing roller shaft 416, a lower roller 421 is disposed in the zigzag lower sleeve 416, a lower driving roller 417 is disposed near the side wall connecting block 410 is connected with the winch fixing core connecting block, a lower roller 417 is disposed near the side wall connecting block 410, a lower driving roller 417 is disposed near the side wall connecting block 410, and a lower driving roller 417 is disposed near the driving rod connecting rod 410, the outer side of the catcher guard bar 418 is provided with a rotation fixing core end bolt 420.

In the actual use process, the utility model drives the transmission core 417 to rotate through the motor 413, further drives the lower pressing roller sleeve 416 to rotate, drives the winch rubber belt 415 to circularly move along the catcher support 43 and the upper pressing roller 47 between the catcher conveying section 42, the winch inclined section 49 and the discharging hole section 414, and removes all the lower steps and sends the lower steps to the rear of the tunnel lower steps mechanized excavation construction device, and the operation of the excavation mechanism 1 and the excavation mechanism 2 is not influenced by the clearing and transportation of slag trucks.

In the embodiment 10, as shown in fig. 1, 19 and 20, preferably, a direction control assembly 31 and a brake assembly 32 are disposed in the cockpit 3, the direction control assembly 31 includes a steering wheel 311, a steering rod 312 is connected below the steering wheel 311, a driving wheel 313 is disposed outside the middle of the steering rod 312, a steering rod plug 314 is disposed at the lower portion of the steering rod 312, a two-wheel type driving belt 319 is disposed outside the driving wheel 313, a first-stage driven rod upper gear 315 is connected in the two-wheel type driving belt 319, a first-stage driven rod 316 is connected to the first-stage driven rod upper gear 315, a first-stage driven rod lower gear 317 is disposed at the lower portion of the first-stage driven rod 316, a first-stage driven rod plug 318 is disposed at the bottom of the first-stage driven rod 316, a three-wheel type driving belt 3115 is disposed outside the first-stage driven rod lower gear 317, the three-wheel type transmission belt 3115 is internally connected with two secondary driven gears 3110, the secondary driven gears 3110 are connected with a secondary driven rod 3111, the lower part of the secondary driven rod 3111 is provided with a transverse connection rod 3112, the left transverse connection rod 3112 is connected with a left front wheel 3113, the right transverse connection rod 3112 is connected with a right front wheel 3114, the brake assembly 32 comprises a motor platform 3211, the motor platform 3211 is provided with a brake power motor 321 and a forward power motor 327, the brake power motor 321 is provided with a brake motor driving wheel 322, the brake motor driving wheel 322 is provided with a brake belt 323, the brake belt 323 is connected with a J-shaped brake pad 326, the outer side of the J-shaped brake pad 326 is sleeved with a guide clamping groove 324, the inner side of the bent end of the J-shaped brake pad 326 is provided with a rubber friction pad 327, the upper side of the rubber friction pad 327 is provided with a rear wheel axle 3214, the outer side of the forward power motor 327 is provided with a forward power motor driving wheel 328, the forward power motor driving wheel 328 is provided with a driving belt 3210, the driving belt 3210 is internally connected with a wheel shaft brake driven wheel 329, and the left and right ends of the rear wheel shaft 3214 are respectively provided with a left rear wheel 3212 and a right rear wheel 3213.

In the actual use process, the steering wheel assembly 31 is adopted, the steering wheel 311 rotates to control the two-wheel type driving belt 319 and the three-wheel type driving belt 3115 to drive the left front wheel 3113 and the right front wheel 3114 to steer, the braking assembly 32 is adopted, the forward power motor 327 drives the wheel shaft to brake the driven wheel 329 to rotate reversely, and the braking power motor 321 drives the J-shaped brake block 326 to enable the rubber friction block 327 to be in contact with the rear wheel shaft 3214, so that the braking operation is realized.

The specific use process of the utility model comprises the following steps:

s1: after a tunnel is excavated into a hole, the mechanized excavation construction device for the lower steps of the tunnel is driven into the position below the unexcavated lower steps 7 through the applied pavement 6, the excavation mechanism 1 is aligned and attached to the lower step area to be excavated by gradually adjusting the sliding component, the transverse telescopic component 14 and the drilling machine sliding platform 16, and the strip drilling machine platform 17 is sequentially adjusted to enable the strip drilling machine to form a gradual change trend from left to right from top to bottom so as to meet the excavation requirement of the arc profile of the lower steps;

s2: starting an air pump pushing component 18 at the rear end of the drilling machine and the drilling machine 19 to drive a drill rod 110 to drill until all drill rods are drilled into the rock mass of the lower step, starting a vibrator component 15 to enable the excavated rock mass to be crushed and fall to a lower winch slag discharging mechanism 4, configuring a corresponding slag discharging vehicle 5, and conveying waste slag out of a hole;

S3: aiming at the waste slag which does not fall to the winch slag discharging mechanism 4 in the lower steps, the digging mechanism 2 is called, the waste slag in the transverse digging area is completely dug into the winch slag discharging mechanism 4 through the digging claw 212 until all the waste slag in the lower steps is cleared, and the excavation construction of the lower steps is sequentially and circularly completed.

The present utility model is not limited to the above-mentioned embodiments, and any changes or substitutions that can be easily understood by those skilled in the art within the technical scope of the present utility model are intended to be included in the scope of the present utility model.

Claims (9)

1. The utility model provides a tunnel step mechanized excavation construction equipment down which characterized in that: the device comprises an excavating mechanism (1), an excavating mechanism (2), a cockpit (3) and a winch slag discharging mechanism (4), wherein the excavating mechanism (1) is positioned on the right side of the cockpit (3), the excavating mechanism (2) is positioned above the excavating mechanism (1), one end, close to a tunnel excavating surface, of the winch slag discharging mechanism (4) is positioned below the excavating mechanism (1), one end, far away from the tunnel excavating surface, of the winch slag discharging mechanism (4) is positioned on the left side of the cockpit (3), a slag discharging vehicle (5) is arranged below the winch slag discharging mechanism, the excavating mechanism (1) comprises a sliding component, a transverse telescopic component (14), a vibrator component (15), a drill rig sliding platform (16), a strip type drill rig platform (17), a drill rig rear end air pump component (18), a drill rig (19) and a drill rod (110), the excavating mechanism (2) comprises a planing arm base (21), a first folding arm (25), a second folding arm (210) and a third folding arm (211) are hinged above the planing arm base (21) in sequence, and a third folding arm (211) is provided with a planing claw (211); the winch slag discharging mechanism (4) comprises a front section width gradual change receiving hopper (41), a receiving hopper conveying section (42), a winch inclined section (49) and a discharge hole section (414) which are sequentially connected, a receiving hopper support (43) is arranged at the joint of the front section width gradual change receiving hopper (41) and the receiving hopper conveying section (42), an upward-pressing winch assembly is arranged above the joint of the receiving hopper conveying section (42) and the winch inclined section (49), a downward-pressing winch assembly is arranged below the joint of the winch inclined section (49) and the discharge hole section (414), and winch rubber belts (415) are respectively sleeved on the outer sides of the receiving hopper conveying section (42), the winch inclined section (49) and the discharge hole section (414).

2. The tunnel lower step mechanized excavation construction device according to claim 1, wherein: the sliding assembly comprises a vertical chute plate (11), a vertical chute back plate (12), a transverse chute plate (13) and a transverse chute back plate (135) which are sequentially connected, the vertical chute plate (11) comprises a vertical chute back plate (111), two vertical slide rails (112) which are parallel to each other are arranged on the vertical chute back plate (111), two vertical support plates (114) are respectively arranged in the directions that the side surfaces of the bottom of the vertical slide rails (112) are close to the left end surface and the right end surface of the vertical chute back plate (111), vertical jacks (113) are fixedly connected to the vertical support plates (114), vertical slide cores (123) corresponding to the vertical slide rails (112) are arranged on the vertical chute back plate (12), first connecting limiting orifice plates (121) corresponding to the vertical chute plates (114) are arranged on the vertical chute back plate (12), vertical limiting nails (122) are arranged in the first connecting limiting orifice plates (121), the vertical chute back plate (12) is fixedly connected with the output ends of the vertical jacks (113) through the vertical limiting nails (122), the horizontal chute plates (131) are arranged on the transverse chute back plate (131) which is parallel to each other, the two lateral sliding grooves (132) are formed in the lateral direction of the right bottom side face of the lateral sliding groove (132) close to the upper end face and the lower end face of the lateral sliding backboard (131) respectively, lateral jacks (134) are fixedly connected to the lateral supporting boards (133), lateral sliding cores (138) corresponding to the lateral sliding grooves (132) are arranged on the lateral sliding core backboard (135), second connecting limiting orifice plates (137) corresponding to the lateral supporting boards (133) are arranged on the lateral sliding core backboard (135), lateral limiting nails (136) are arranged in the second connecting limiting orifice plates (137), and the lateral sliding core backboard (135) is fixedly connected with the output ends of the lateral jacks (134) through the lateral limiting nails (136).

3. The tunnel lower step mechanized excavation construction device according to claim 1, wherein: the horizontal flexible subassembly (14) is including setting up a plurality of horizontal flexible jack bottom sleeve (141) on slip subassembly right side, be equipped with horizontal flexible jack (144) in horizontal flexible jack bottom sleeve (141), horizontal flexible jack bottom sleeve (141) side bottom is equipped with horizontal flexible jack afterbody fiber nail (142), horizontal flexible jack (144) are in horizontal flexible jack bottom sleeve (141) bottom one side is equipped with horizontal flexible jack afterbody connecting piece (143), the output side of horizontal flexible jack (144) is equipped with horizontal flexible jack top pin (145).

4. A tunnel lower step mechanized excavation construction apparatus as claimed in claim 3, wherein: vibrator subassembly (15) are including vibration base backplate (151), vibration base backplate (151) left side be equipped with horizontal telescopic jack end sleeve (157) that horizontal telescopic jack bottom sleeve (141) corresponds, horizontal telescopic jack end sleeve (157) bottom side is equipped with horizontal jack end and connects spacing hole (158), horizontal telescopic jack end pin (145) will through horizontal jack end connect spacing hole (158) with the output of horizontal telescopic jack (144) with horizontal telescopic jack end sleeve (157) fixed connection, vibration base backplate (151) top is equipped with a plurality of oscillator bottom sleeve (152), oscillator bottom sleeve (152) bottom side is equipped with oscillator spacing nail (153), oscillator bottom sleeve (152) inside is equipped with oscillator (155), oscillator (155) lower part is equipped with oscillator connecting piece (154), oscillator (155) upper portion output is equipped with oscillator end and connects spacing nail (156), vibration base plate (159) that are parallel each other are equipped with on vibration base plate right side.

5. The mechanical excavation construction device for the lower steps of the tunnels according to claim 4 is characterized in that: rig slip platform (16) are including rig slip platform backplate (167), rig slip platform backplate (167) top is equipped with a plurality of hydraulic jack bottom sleeve (161), hydraulic jack bottom sleeve (161) bottom side is equipped with sleeve spacing nail (162), be equipped with hydraulic jack (164) in hydraulic jack bottom sleeve (161), hydraulic jack (164) lower part is equipped with jack bottom connecting piece (163), hydraulic jack (164) top output is equipped with jack end spacing nail (165), rig slip platform backplate (167) left side with vertical oscillation base board spout (159) corresponding position is equipped with rig slip platform slide core (168), rig slip platform backplate (167) left side with oscillator (155) corresponding position is equipped with oscillator end snap ring (166), rig slip platform backplate (167) right side is equipped with rig slip platform back spout (169).

6. The mechanical excavation construction device for the lower steps of the tunnels according to claim 5, wherein: the strip type drilling machine platform (17) comprises a strip type drilling machine platform transverse plate (171) and a strip type drilling machine platform vertical plate (174), the strip type drilling machine platform transverse plate (171) and the strip type drilling machine platform vertical plate (174) are L-shaped, a hydraulic telescopic jack bayonet (172) is arranged on the strip type drilling machine platform transverse plate (171), a top output end of a hydraulic telescopic jack (164) and the hydraulic telescopic jack bayonet (172) are fixedly connected through jack end limiting nails (165), a drilling machine platform vertical plate (174) is provided with a drilling machine platform vertical slide core (173) on the left side, the drilling machine platform vertical slide core (173) is in sliding connection with a drilling machine sliding platform back chute (169), a plurality of strip type drilling machine platform sleeves (175) are arranged on the right side of the strip type drilling machine platform vertical plate (174), a rear end air pump assembly (18) is arranged in the strip type drilling machine platform sleeve (175), the drilling machine rear end air pump assembly (18) comprises an air pump inner bin (182), an air pump inner bin (182) is provided with an air pump end limiting nail (165) on the left side end, an air pump end part (182) is arranged on the left side of the air pump platform vertical slide core (169), an air pump end part (181) is arranged on the right side of the air pump platform (181), the gas bin end clamping head (183) is connected with a gas bin telescopic rod convex clamping head (186), a gas bin telescopic rod (187) is arranged in the gas bin telescopic rod convex clamping head (186), and a gas pressure telescopic rod end limiting nail (188) is arranged on the right side face of the gas bin telescopic rod (187).

7. The tunnel lower step mechanized excavation construction device according to claim 6, wherein: rig (19) are including rig motor (191), rig motor (191) left side is equipped with motor air pump sleeve (192), motor air pump sleeve (192) with pneumatic cabin telescopic link (187) right-hand member is through spacing nail (188) fixed connection of pneumatic telescopic link end, rig motor (191) right side is equipped with motor sleeve (193), be equipped with dowel steel (194) in motor sleeve (193), dowel steel (194) right side center is equipped with square bayonet socket (195) of drilling rod, dowel steel (194) side is equipped with into water sump (196), drilling rod (110) are including drilling rod wall (1102), drilling rod wall (1102) left side is equipped with square chuck (1101) of drilling rod, and the right side is equipped with cross drill bit (1103), cross drill bit (1103) center leaves drilling rod center water jet hole (1104).

8. The tunnel lower step mechanized excavation construction device according to claim 1, wherein: the planing arm base (21) upper surface is equipped with fixed hinge (22), first arm (25) lower extreme is equipped with planing arm dop (23), planing arm dop (23) through planing arm pin (24) with fixed hinge (22) are connected, be equipped with between first arm (25) and second arm (210) and roll over arm connection hinge (26), first arm (25) upper portion side is equipped with planing arm jack base (27), be equipped with planing arm jack (28) on planing arm jack base (27), planing arm jack (28) output with be equipped with planing arm jack connection hinge (29) between second arm (210) lower part, third arm (211) right-hand member is equipped with planing arm end sleeve (2113), planing arm end sleeve (2113) side is equipped with horizontal push-pull jack (2111), the output of horizontal jack (2111) is equipped with spacing nail (2112), be equipped with horizontal slide bar (7) in planing arm sleeve (3), horizontal slide bar (2117) end (2115) are connected with horizontal slide bar (2115) end (2115) in proper order, horizontal slide bar (2115) end (2115), the planing claw (212) comprises a planing claw tail plate (2122), a planing claw clamping groove (2121) is formed in the side face of the planing claw tail plate (2122), a planing claw sleeve (2123) is arranged in the middle of the planing claw tail plate (2122), the planing claw sleeve (2123) is sleeved with a transverse sliding rod (2117), a jack backboard (2127) is arranged on the upper portion of the right end of the planing claw tail plate (2122), a scraping bucket jack (2126) is arranged on the jack backboard (2127), a pin hole (2125) is formed in the right end of the planing claw tail plate (2122), a pin (2124) is arranged in the pin hole (2125), a scraping bucket (2129) is connected to the right end of the planing claw tail plate (2122) through the pin (2124), a scraping bucket tail sleeve hole (2128) corresponding to the pin hole (2125) is formed in the scraping bucket tail sleeve hole (2128), a scraping bucket jack (21210) is arranged on the scraping bucket tail sleeve hole (2128), and the scraping bucket jack (2126) is hinged to the output end (21210).

9. The tunnel lower step mechanized excavation construction device according to claim 1, wherein: the bucket support (43) comprises two bottom support edge tables (431) positioned below the joint of the front section width gradual change bucket (41) and the bucket conveying section (42), an upper sleeve (432) is connected above the bottom support edge tables (431), a rotation fixing core (434) is arranged between the upper sleeve (432), a rotation sleeve (433) is arranged outside the rotation fixing core (434), the upper winch component comprises a winch rotation sleeve (48), a winch fixing core (46) is arranged in the winch rotation sleeve (48), one end, close to the cockpit (3), of the winch fixing core (46) is connected with a winch fixing core sleeve (45), the winch fixing core sleeve (45) is fixedly connected with a car body side wall connecting block (44), an upper pressing roller (47) is further arranged above the joint of the bucket conveying section (42) and the winch inclined section (49), the lower winch component comprises a lower pressing roller sleeve (416), the lower roller sleeve (416) is Z-shaped, the lower roller (416) is provided with a lower pressing roller (45), the lower roller (410) is provided with a lower pressing roller (410), and the lower roller (410) is provided with a lower roller (410) connecting bolt (410), the Z-shaped pushing roller sleeve (416) is provided with a transmission core (417), one end, close to a cockpit (3), of the transmission core (417) is provided with a driven wheel (421), the driven wheel (421) is connected with an output shaft of a motor (413) through a belt, the motor is fixedly connected with a winch side fixing rod (412), the winch side fixing rod is provided with a car body rear wall connecting block (411), the transmission core (417) is positioned on two sides of a winch rubber belt (415) and is respectively provided with a bucket receiving guardrail (418), and a rotating fixing core end bolt (420) is arranged on the outer side of the bucket receiving guardrail (418).