CN104265164B - The creeping into draw to dig of plateau mountain foundation pit excavation construction equipment carries native device - Google Patents

Abstract

The device for drilling, digging, excavating and lifting earth for foundation pit excavation in plateau mountain includes a support frame, on which a support frame is arranged, on which two slideway frames are vertically arranged, and between the upper ends of the two slideway frames, a There is a landing bracket, a slideway is vertically provided in the slideway frame, a double-increasing transmission mechanism is provided on the slideway frame, and a slewing drive device connected with the double-increase transmission mechanism is slid in the slideway, and the power output end of the slewing drive device is connected with a Drilling mechanism, the lower end of the drilling mechanism is provided with a digging mechanism and a soil lifting mechanism. The invention has reasonable design, high degree of automation, fully reduces the intensity of manual labor, high degree of safety and reliability, and improves the work efficiency of pile hole digging. The research on excavation mechanized operation equipment can make it meet the technical requirements of excavation pile foundation for line construction, and improve the degree of mechanization and construction efficiency of AC transmission line engineering construction.

Description

Drilling, excavation, and soil lifting device for foundation pit excavation construction equipment in plateau mountainous areas

technical field

The invention belongs to the technical field of construction in the electric power industry, and in particular relates to a drilling, digging, digging and soil lifting device for foundation pit excavation construction equipment in plateau and mountainous areas.

Background technique

Excavated pile foundation is a foundation type commonly used in transmission line engineering. Compared with the large excavation foundation form, it has significant advantages in environmental protection, concrete maintenance, reduction of backfill operations, and full use of undisturbed soil properties. In recent years, it has been used in power transmission It is more and more widely used in line engineering.

The traditional method of manually excavating foundation pits is a type of pile that uses manual excavation of pile holes, places steel cages in the holes, and pours concrete. Its advantages are:

(1) The manual excavation pile construction equipment is simple, the construction operation is convenient, the construction site is small, and there is no impact on the surrounding buildings;

(2) During the construction, the manual excavation piles are fully deployed, which can effectively shorten the construction period;

(3) No noise and no pollution;

(4), the pile quality is easy to guarantee;

(5), low cost;

(6) The single pile has high bearing capacity and reliable mechanical performance. At the same time, the pile end can be artificially enlarged to increase the bearing capacity.

The disadvantages of manual digging piles are:

(1) Poor underground operating conditions, harsh environment, and high labor intensity;

(2) The safety is poor, and personnel work up and down in the hole, which is prone to casualties;

(3) The construction speed of single pile is relatively slow;

(4) The amount of concrete poured is large.

Of course, manual excavation piles are only limited to the soil strata in the plains. For the Sichuan-Tibet Interconnection Project, the altitude is high, the climate and terrain are harsh, and the construction time is short. Conventional excavation equipment and construction methods cannot meet the construction needs.

The Sichuan-Tibet interconnection project starts from the Sichuan 500kV rural-urban substation, passes through the 500kV Batang substation, the Tibet 500kV Qamdo substation, and ends at the 220kV Bangda substation and Yulong substation. A new 500kV line is 1,036 kilometers long. The newly built 220 kV line is 505 km long and the 110 kV double-circuit line on the same tower is 2 × 9 km long. Most of the areas along the project line are in low pressure, anoxic, severe cold, strong wind, strong radiation and other areas, and the natural environment and climate conditions are extremely It is harsh and human construction is limited; at the same time, the project is located in the "Three Rivers" fault zone with the most complex geological structure and the widest distribution of geological disasters in the world. The function is difficult to play, and the construction is extremely difficult.

In the design and planning of the project, large-diameter excavated cast-in-situ pile foundations are used in many places of the pole and tower foundations. Compared with the large-excavation foundation form, this foundation form has advantages in environmental protection, concrete maintenance, reduction of backfill operations, and full use of undisturbed soil performance. With significant advantages, it has become a basic type commonly used in transmission line engineering.

In view of the particularity of the construction environment of the Sichuan-Tibet interconnection project, combined with the foundation type of the line project, it is imperative to develop a mechanized operation tool for foundation pit excavation suitable for plateau and mountainous areas, which is conducive to improving the safety and mechanization of the foundation construction of the transmission line project and construction efficiency.

Contents of the invention

In order to solve the deficiencies in the prior art, the present invention provides a drilling, digging, and soil lifting device for foundation pit excavation construction equipment in plateau mountainous areas with strong safety and reliability, high degree of mechanization, and high construction efficiency.

In order to solve the above-mentioned technical problems, the present invention adopts the following technical scheme: the drilling, digging, digging and soil lifting device of the foundation pit excavation construction equipment in the plateau mountain includes a support frame, a support frame is provided on the support frame, and two The slideway frame, the landing bracket is arranged between the upper ends of the two slideway frames, the slideway is vertically arranged in the slideway frame, the double-increasing transmission mechanism is arranged on the slideway frame, and the sliding mechanism connected with the double-increase transmission mechanism is arranged in the slideway A rotary drive device, the power output end of the rotary drive device is connected with a drilling mechanism, and the lower end of the drilling mechanism is provided with a digging mechanism and a soil lifting mechanism;

The rotary drive device includes a rotary drive seat and a main hydraulic motor arranged on the rotary drive seat. The side of the rotary drive seat is provided with a slide plate that is slidably connected in the slideway. Pulley, movable pulley block, upper plate chain and lower plate chain, the lower end of the lifting hydraulic cylinder is hinged at the lower end of the slide frame, the movable pulley block is set at the upper end of the piston rod of the lifting hydraulic cylinder, the fixed end of the upper plate chain is connected to the upper end of the slide frame, and the upper end of the upper plate chain is connected to the upper end of the slide frame. The fixed end of the plate chain bypasses one pulley of the movable pulley block and the upper fixed pulley in turn, and then connects with the upper end of the slide plate. The fixed end of the lower plate chain is connected to the body of the lifting hydraulic cylinder, and the lower plate chain bypasses the other pulley and the upper fixed pulley of the movable pulley block in turn. After setting the pulley, it is connected with the lower end of the slide plate.

The drilling mechanism includes a drive drill rod, a guide drill rod and a drill bit. The upper end of the drive drill rod is connected to the power drive end of the main hydraulic motor, and the lower end of the drive drill rod and the upper end of the guide drill rod are coaxially connected through a connecting pipe. The lower end of the tube is inserted in the guide drill rod and welded together with the guide drill rod. The upper end of the connecting pipe is inserted in the transmission drill rod and connected to the transmission through the radially arranged bolts. The drill bit is set at the lower end of the guide drill rod, and the outer wall of the guide drill rod Two guide rails are arranged symmetrically along the axial direction.

The digging mechanism includes an upper base and a lower base, the upper base and the middle of the lower base are provided with a through hole pierced on the guide drill rod and a guide groove slidingly matched with the two guide rails, and the upper base passes through the limiter set in the radial direction. The positioning pin is fixedly connected with the guide drill rod, a compression spring is provided between the lower surface of the upper base and the upper surface of the lower base, two supports are symmetrically arranged on the lower base, and each support is equipped with a digging hydraulic motor and The hose reel is located above the digging hydraulic motor. The main shafts of the two digging hydraulic motors are set horizontally and the output ends are facing oppositely. The outer ends of the main shafts of the digging hydraulic motors are coaxially connected with the digging shaft. There are digging teeth arranged in a spiral shape, and the hydraulic oil pipe of the digging hydraulic motor is wound on the hose reel.

The soil lifting mechanism includes a hoist, a tripod, a lifting pulley block, a left casing, a right casing and a sliding seat, the hoist is arranged on the supporting frame, the lower end of the tripod is hinged on the supporting frame, and the upper end of the tripod and the supporting frame are arranged. There is a jacking hydraulic cylinder, and the fixed pulleys of the lifting pulley block are respectively set on the tripod bracket and the landing bracket. The sliding seat is installed on the guide drill pipe. A horizontal bar is arranged horizontally on both sides, and a muck bucket is respectively arranged under each cross bar, and each muck bucket is respectively located on the rear side of a digging shaft, and a discharge valve plate is arranged at the bottom of the muck bucket. The side of the muck bucket close to the excavation shaft is open, the top of the muck bucket is provided with an observation hole, and the two sides of the upper part of the sliding seat are respectively provided with a hanging ring;

Both sides of the left casing and the right casing are connected by connecting pins, the left casing and the right casing are respectively threaded on the guide drill pipe, and the inner sides of the left casing and the right casing are respectively provided with a U The left side of the left casing and the right side of the right casing are respectively provided with a hook for hanging the ring, and the left side of the left casing and the right side of the right casing are respectively provided with a hook for limiting the rotation angle of the hook. The baffle, the rear part of each hook is provided with a connecting ring for connecting the pull rope, the side where the left sleeve and the right sleeve are connected to each other is provided with a ring, the hinge point of the hook is close to the side of the ring, the wire rope of the hoist After passing through the pulley on the top of the tripod and the pulley on the landing bracket in turn, it is connected with the suspension ring.

An ascending ladder is provided between the top of the support frame and the slideway frame, and a descending ladder is provided between the support frame and the top of the support frame.

The side part of the lower end of the slideway frame is provided with an opening and closing centralizer, the inner end of the opening and closing centralizer is provided with a guide hole for inserting a transmission drill pipe, and the outer end of the opening and closing centralizer is hinged on the slideway frame.

The lower end of the slideway frame is provided with a positioning pin matched with the support frame.

The drill bit includes a side frame, a side drill bit and a center drill bit. The side frame is arranged on the lower end side of the guide drill rod, and the center drill bit is arranged on the lower end of the guide drill rod. Set on side shelf.

By adopting the above-mentioned technical scheme, the construction equipment for excavating foundation pits in plateau mountainous areas also includes a walking support mechanism arranged on the side of the support frame.

The walking support mechanism includes walking wheels and hydraulic lifting legs. The two walking wheels at the front end of the supporting frame are arranged below the supporting frame through slewing support, and the two ends of the central axis of the two walking wheels at the front end of the supporting frame are connected with drag bars.

The walking support mechanism is mainly used for bearing and turning when the drilling frame is transferred to another site. When traveling, the hydraulic lifting outriggers shrink, and the walking wheels are supported on the ground. The towing bar is connected to the tractor, and the tractor pulls it forward. When turning, the two road wheels at the lower end of the slewing support are used for steering. During operation, the hydraulic lifting outriggers on the side of the support frame are extended and can be adjusted manually, which is used for leveling and alignment during equipment construction, and to avoid the walking wheels landing on the ground during construction.

The rotary driving device in the present invention is mainly used to provide the power for the drill bit to rotate and drill down. The rotation is driven by the main hydraulic motor, and the drill bit and the digging mechanism are driven by the transmission drill rod and the guide drill rod to excavate. When drilling down, the piston rod of the lifting hydraulic cylinder is used to extend upwards, pulling the lower plate chain, and the lower plate chain Pull down the slide plate and the rotary drive seat moves down along the slideway, so that the transmission drill rod and the guide drill rod are driven to drill downward. When the driving drill pipe and the guide drill pipe need to be lifted upwards, the piston rod of the lifting hydraulic cylinder shrinks downward, pulling the upper plate chain, and the upper plate chain pulls the slide plate upward and the rotary drive seat moves upward along the slideway.

The drill bit in the present invention is at the bottom, and the center drill bit and the side drill bits are all alloy drill bits, which are mainly used to destroy the weathered rock in the stratum during construction. There are three side frames, and the three side frames are evenly distributed around the center drill rod.

The upper base of the digging mechanism is fixed together with the guide drill rod through the limit pin. Since the upper base and the lower base are equipped with guide grooves that cooperate with the guide rail, the upper base and the lower base can be integrated with the guide drill rod. When the two digging shafts rotate at high speed with the lower base, the digging hydraulic motor also drives the digging shaft itself to rotate at high speed. The digging teeth arranged in a spiral shape on the digging shaft are The excavation of the foundation pit was vigorously carried out. During the digging process, when the digging teeth encounter hard soil or hard stones, the lower base connected to the digging shaft can slide up and down along the guide drill rod, and the compression spring plays a good buffer role, effectively protecting the The digging teeth are damaged as little as possible. When the digging mechanism drills down, the hose reel wrapped around the digging hydraulic motor rotates to release the hydraulic oil pipe.

The muck drilled by the drill bit and the digging teeth is lifted to the ground through the soil lifting mechanism. The hoist hangs the suspension ring through the wire rope, and the hook hangs the suspension ring. The rod moves downward, and the muck bucket connected to the sliding seat through the cross bar falls to the bottom of the foundation pit. The worker standing on the ground pulls the pull rope, and the pull rope drives the hook through the connecting ring to disengage from the hanging ring. The hoist drives the left sleeve and The right casing is pulled upwards, and then the main hydraulic motor is turned on, the drilling operation starts, the digging shaft rotates, the digging teeth transport the muck directly into the muck bucket, and through the observation hole, it is found that the muck bucket is full of soil. Finally, the main hydraulic motor stops, and the hoist moves the left casing and the right casing downward. Due to the hooks on the outside of the left casing and the right casing and the baffles that cooperate with the hooks, the hinge points of the hooks are set eccentrically, and the baffles are lifted. To limit the position of the hook, ensure that the center of the hook is biased, so that when the left casing and the right casing slide down along the guide drill pipe, the hook can be staggered from the hanging ring, so that the hook can be automatically hooked to the hook on the ring. After the automatic hook under the pit is completed, operate the hoisting wire rope connected with the hanging ring, lift the muck recovery device along the guide drill pipe to the pit base, open the discharge valve plate at the bottom of the muck bucket, and unload the muck . After the slag is recovered, the discharge valve plate is closed, and the above process is repeated to carry out the next round of soil lifting operation.

In addition, the hoist is not only used for soil lifting operations, but also used for lowering and lifting of slewing drive devices and digging devices.

Since the driving drill pipe is long, it will be bent during the rotation process. The opening and closing centralizer located at the lower end of the slideway frame has a centralizing effect on the driving drill pipe, reducing the twisting and deformation of the driving drill pipe and the guiding drill pipe under torsion. , improve the stability of drilling construction.

The landing bracket is arranged on the upper end of the slideway frame, and the slideway frame is connected as a whole to increase the torsion resistance of drilling.

The upper climbing ladder and the lower climbing ladder are used for maintenance work on various parts of the equipment, and also play a further supporting role for the support frame and the slideway frame.

Due to the large diameter of the pile hole excavated by the equipment of the present invention, in order to prevent the pile hole from collapsing and to facilitate the smooth entry and exit of the trolley when the muck is recovered, a wellhead plate is designed inside the equipment support frame, and the wellhead plate and the base frame are hinged. , easy to operate. At the same time, the power mechanism is installed on the supporting frame of the equipment. The power mechanism mainly includes the engine, hydraulic pump, hydraulic oil tank, diesel tank and other control valves.

To sum up, the present invention uses the rotary drive device to first screw the transmission drill pipe, the guide drill pipe and the drill bit into the formation, and then the digging mechanism revolves and rotates around the guide drill pipe to crush and recycle the rock layer by layer. The dregs are lifted outwards and dumped by the lifting mechanism, and after unloading, the muck bucket enters the hole again to carry out the soil lifting operation. Repeat the above-mentioned program cycle until the dimensions such as the hole depth meet the design requirements.

The invention has reasonable design, high degree of automation, fully reduces the intensity of manual labor, high degree of safety and reliability, and improves the work efficiency of pile hole digging. The research on excavation mechanized operation equipment makes it meet the technical requirements of excavation pile foundation in line construction, improves the degree of mechanization and construction efficiency of AC transmission line engineering construction, promotes the further improvement of the construction technology level of excavation pile foundation, and fundamentally solves the problem of excavation. The problem of pile foundation construction is of great significance to the construction of transmission line foundation, and it also has reference significance for the realization of mechanized foundation pit excavation for UHV projects in the future.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the left view of Fig. 1;

Fig. 3 is a schematic structural view of the slide rail frame and the multiplication transmission mechanism;

Fig. 4 is the structural representation of guiding drill rod, drill bit, digging mechanism and soil lifting mechanism in Fig. 1;

Fig. 5 is a structural representation of digging mechanism in Fig. 4;

Fig. 6 is a structural schematic diagram of the left casing and the right casing part of the soil lifting mechanism in Fig. 4;

Fig. 7 is the left view of Fig. 6;

FIG. 8 is a top view of FIG. 6 .

The reference signs are respectively:

Support frame-1, support frame-2, slideway frame-3, landing support-4, slideway-5, traveling wheels-6, hydraulic lifting outrigger-7, slewing support-8, drag bar-9, slewing drive Seat-10, main hydraulic motor-11, slide plate-12, lifting hydraulic cylinder-13, upper fixed pulley-14, lower fixed pulley-15, moving pulley block-16, upper plate chain-17, lower plate chain-18, drive drill Rod-19, guide rod-20, drill bit-21, guide rail-22, upper base-23, lower base-24, guide groove-25, limit pin-26, compression spring-27, support-28, dig out Digging hydraulic motor-29, hose reel-30, digging shaft-31, digging gear-32, hoist-33, tripod bracket-34, left bushing-35, right bushing-36, sliding seat-37, Cross bar-38, muck bucket-39, discharge valve plate-40, hanging ring-41, connecting pin-42, U-shaped groove-43, hook-44, baffle-45, connecting ring-46, lifting ring- 47, up ladder-48, down ladder-49, opening and closing centralizer-50, positioning pin-51, side frame 52, side drill bit-53, center drill bit-54, jacking hydraulic cylinder-55, digging mechanism-56 , Earth Lifting Mechanism-57.

detailed description

As shown in Figures 1 to 8, the construction equipment for foundation pit excavation in plateau mountainous areas includes a support frame 1, on which a walking support mechanism and a support frame 2 are arranged, and on the support frame 2 are vertically provided two slideway frames 3 , the upper ends of the two slideway frames 3 are provided with landing brackets 4, the slideway frames 3 are vertically provided with a slideway 5, the slideway frame 3 is provided with a multiplication transmission mechanism, and the slideway 5 is provided with a multiplication transmission mechanism Connected rotary drive unit, the power output end of the rotary drive unit is connected with a drilling mechanism, and the lower end of the drilling mechanism is provided with a digging mechanism 56 and an earth lifting mechanism 57.

The walking support mechanism includes walking wheels 6 and hydraulic lifting legs 7. The two walking wheels 6 at the front end of the supporting frame 1 are arranged below the supporting frame 1 through a rotary support 8. The two ends of the central axis of the two walking wheels 6 at the front end of the supporting frame 1 Connect with drag bar 9.

The rotary drive device includes a rotary drive base 10 and a main hydraulic motor 11 located on the rotary drive base 10. The side of the rotary drive base 10 is provided with a slide plate 12 that is slidably connected in the slideway 5. The multiplication transmission mechanism includes a lifting hydraulic cylinder 13. , the upper fixed pulley 14, the lower fixed pulley 15, the movable pulley block 16, the upper plate chain 17 and the lower plate chain 18, the lower end of the lifting hydraulic cylinder 13 is hinged at the lower end of the slideway frame 3, and the movable pulley block 16 is located at the upper end of the piston rod of the lifting hydraulic cylinder 13 , the fixed end of the upper plate chain 17 is connected to the upper end of the slideway frame 3, and the upper plate chain 17 is connected with the upper end of the slide plate 12 after the fixed end bypasses a pulley of the movable pulley block 16 and the upper fixed pulley 14, and the fixing of the lower plate chain 18 The end is connected on the lifting hydraulic cylinder 13 body, and the lower plate chain 18 is connected with the lower end of the slide plate 12 after going around another pulley of the movable pulley block 16 and the lower pulley 15 successively.

The drilling mechanism includes a transmission drill rod 19, a guide drill rod 20 and a drill bit 21. The upper end of the transmission drill rod 19 is connected to the power drive end of the main hydraulic motor 11. The lower end of the transmission drill rod 19 and the upper end of the guide drill rod 20 are connected through a connecting pipe. Axially connected, the lower end of the connecting pipe is inserted in the guide drill rod 20 and welded as a whole with the guide drill rod 20, the upper end of the connecting pipe is inserted in the transmission drill rod 19 and is connected and driven by a radially arranged bolt, and the drill bit 21 is located on the The lower end of the guide drill rod 20 is symmetrically provided with two guide rails 22 on the outer wall of the guide drill rod 20 along the axial direction.

The digging mechanism 56 includes an upper base 23 and a lower base 24. The middle part of the upper base 23 and the lower base 24 is provided with a through hole pierced on the guide drill rod 20 and a guide groove 25 slidingly matched with the two guide rails 22. The upper base 23 is fixedly connected to the guide drill rod 20 through the radially arranged limit pin 26, a compression spring 27 is provided between the lower surface of the upper base 23 and the upper surface of the lower base 24, and two supports 28 are symmetrically arranged on the lower base 24, Each support 28 is provided with a digging hydraulic motor 29 and a hose reel 30 positioned above the digging hydraulic motor 29. The main shafts of the two digging hydraulic motors 29 are arranged horizontally and the output ends face opposite. The outer end of the main shaft of 29 is coaxially connected with digging shaft 31, and digging shaft 31 is provided with digging teeth 32 arranged in a spiral along the axial direction, and digging the hydraulic oil pipe of hydraulic motor 29 is wound on the hose reel 30.

Lifting soil mechanism 57 comprises hoist 33, tripod 34, hoisting pulley block, left casing 35, right casing 36 and sliding seat 37, hoist 33 is located on the support frame 1, and tripod 34 lower ends are hinged on the support frame 1, and tripod A jacking hydraulic cylinder 55 for adjusting the inclination of the tripod 34 is provided between the upper end of the bracket 34 and the support frame 1. The fixed pulleys of the hoisting pulley block are respectively arranged on the tripod 34 and the landing bracket 4, and the sliding seat 37 is installed on the guide drill. On the bar 20, the inside of the sliding seat 37 is provided with chutes respectively slidingly matched with the two guide rails 22, and a cross bar 38 is horizontally arranged on both sides of the sliding seat 37, and a muck bucket 39 is respectively arranged under each cross bar 38. , each slag bucket 39 is respectively located at the rear side of a digging shaft 31, the bottom of the slag bucket 39 is provided with a discharge valve plate 40, the slag bucket 39 is open near the side of the digging shaft 31, and the slag bucket 39 An observation hole is arranged on the top, and a hanging ring 41 is respectively arranged on both sides of the upper part of the sliding seat 37 .

Both sides of the left sleeve pipe 35 and the right sleeve pipe 36 are connected by connecting pins 42, the left sleeve pipe 35 and the right sleeve pipe 36 are respectively put on the guide drill rod 20, and the inner sides of the left sleeve pipe 35 and the right sleeve pipe 36 are respectively provided with There is a U-shaped groove 43 that is slidingly matched with the guide rail 22, and a hook 44 is respectively provided on the left side of the left sleeve 35 and the right side of the right sleeve 36 for hanging the ring 41, and the left side of the left sleeve 35 and the right sleeve The right side of the pipe 36 is respectively provided with a baffle plate 45 used to limit the rotation angle of the hook 44, and the rear portion of each hook 44 is respectively provided with a connecting ring 46 for connecting the pull cord, the left casing 35 and the right casing 36 interconnected sides are provided with suspension ring 47, and the hinged point of hook 44 is close to suspension ring 47 one side, and the wire rope of winch 33 passes successively after the pulley on the tripod 34 top, the pulley on the lifting bracket 4 and is connected with suspension ring 47.

An upper ladder 48 is provided between the top of the support frame 2 and the slideway frame 3 , and a lower ladder 49 is provided between the support frame 1 and the top of the support frame 2 . The upper climbing ladder 48 and the lower climbing ladder 49 are used to carry out maintenance work on various positions on the equipment, and also play a further supporting role to the support frame 2 and the slideway frame 3 .

Slideway frame 3 lower end sides are provided with opening and closing centralizer 50, and opening and closing centralizer 50 inner end is provided with the guide hole that is used for inserting transmission drilling rod 19, and opening and closing centralizer 50 outer ends are hinged on slideway frame 3.

The lower end of the slideway frame 3 is provided with a positioning pin 51 that cooperates with the support frame 2 . The positioning pin 51 plays the role of precise positioning and installation.

The drill bit 21 includes a side frame 52, a side drill bit 53 and a center drill bit 54. The side frame 52 is arranged on the lower end side of the guide drill rod 20, and the center drill bit 54 is arranged on the lower end of the guide drill rod 20. Large conical structure, the side drill bit 53 is located on the side frame 52.

The walking support mechanism in the present invention is mainly used for carrying and turning when the drilling frame is transferred to another field. The car pulls and advances, and when turning, the two road wheels 6 at the lower end of the slewing support 8 are used for turning. During operation, the hydraulic lift legs 7 on the side of the support frame 1 are extended and can be adjusted manually for leveling and alignment during equipment construction, so as to avoid walking wheels 6 landing on the ground during construction.

The rotary driving device is mainly used to provide power for the drill bit 21 to rotate and drill down. The rotation action is driven by the main hydraulic motor 11, and the drill bit 21 and the digging mechanism 56 are driven by the transmission drill rod 19 and the guide drill rod 20 to excavate. When drilling downward, the piston rod of the lifting hydraulic cylinder 13 is used to extend upward and pull down. Plate chain 18, lower plate chain 18 pulls slide plate 12 downwards and rotary drive seat 10 moves down along slideway 5, so just drives transmission drilling rod 19, guide drilling rod 20 and drills downwards. When the driving drill rod 19 and the guide drill rod 20 need to be lifted upward, the piston rod of the lifting hydraulic cylinder 13 shrinks downward, pulling the upper plate chain 17, and the upper plate chain 17 pulls the slide plate 12 and the rotary drive seat 10 upward along the slideway 5 move.

The drill bit 21 in the present invention is at the lowermost end, and the center drill bit 54 and the side drill bit 53 are all alloy drill bits, which are mainly used to destroy the weathered rock in the stratum during construction. There are three side frames 52, and the three side frames 52 surround the center drill rod Evenly distributed.

The upper base 23 of digging mechanism 56 is fixed as one with guide drill rod 20 by limit pin 26, because the guide groove 25 that cooperates with guide rail 22 is all provided with in upper base 23 and lower base 24, so just makes upper base 23 and The lower base 24 can rotate integrally with the guide drill rod 20. When the two digging shafts 31 rotate at a high speed with the lower base 24, the digging hydraulic motor 29 also drives the digging shaft 31 to rotate at a high speed. The digging teeth 32 arranged in a spiral shape carry out vigorous excavation operations to the foundation pit under the effect of revolution and rotation. During the digging process, when the digging tooth 32 encounters a hard soil layer or a hard stone, the lower base 24 connected to the digging shaft 31 can slide up and down along the guide rod 20, and the compression spring 27 plays a good buffering role , has effectively protected digging tooth 32 and is damaged as little as possible. When the digging mechanism 56 drills downward, the hose reel 30 wound on the digging hydraulic motor 29 rotates to release the hydraulic oil pipe.

The slag drilled by the drill bit 21 and the digging teeth 32 is mentioned to the ground by the soil lifting mechanism 57, the hoist 33 hangs the suspension ring 47 by the wire rope, the hook 44 hangs the suspension ring 41, and the left casing 35, the right sleeve The pipe 36 and the sliding seat 37 move down along the guide drill pipe 20, and the muck bucket 39 connected by the cross bar 38 on the sliding seat 37 falls to the bottom of the foundation pit, and the worker standing on the ground pulls the stay rope, and the stay rope passes through the connection. The ring 46 drives the hook 44 to break away from the hanging ring 41, and the hoist 33 drives the left sleeve pipe 35 and the right sleeve pipe 36 to be pulled out upwards, then the main hydraulic motor 11 is turned on, and the drilling operation starts, and the digging shaft 31 rotates, and the digging teeth 32 will be pulled out. The slag is directly transported into the slag bucket 39, and after the observation hole is found that the soil in the slag bucket 39 is full, the main hydraulic motor 11 stops, and the hoist 33 pushes the left casing 35 and the right casing 36 downward again, because The hook 44 on the outside of the left sleeve 35 and the right sleeve 36 and the baffle 45 that cooperates with the hook 44 are arranged eccentrically at the hinge point of the hook 44, and the baffle 45 plays a role of limiting the hook 44 to ensure that the center of the hook 44 is biased. Set, so just be convenient when left sleeve pipe 35 and right sleeve pipe 36 slide down along guide drill rod 20, hook 44 can be staggered with hanging ring 41 position, realizes that hook 44 can be hooked on the hanging ring 41 automatically. After completing the automatic hook 44 under the pit, operate the hoisting wire rope connected with the hanging ring 41, lift the muck recovery device along the guide drill rod 20 to the base of the pit, open the discharge valve plate at the bottom of the muck bucket 39, Remove the muck. After the slag is recovered, the discharge valve plate 40 is closed, and the above process is repeated to carry out the next round of soil lifting operation.

In addition, the winch 33 is also used for lowering and lifting of the slewing driving device and the excavating device except for lifting the soil.

Because the drive drill rod 19 is relatively long, it will bend during the rotation process. The opening and closing centralizer 50 arranged at the lower end of the slideway frame 3 has a centralizing effect on the drive drill rod 19, reducing the size of the drive drill rod 19 and the guide drill rod 20. Distortion deformation under torsion improves the stability of drilling construction.

The landing bracket 4 is located at the upper end of the slideway frame 3, and the slideway frame 3 is connected as a whole to increase the torsion resistance of drilling.

Due to the larger diameter of the pile hole excavated by the equipment of the present invention, in order to prevent the pile hole from collapsing and to facilitate the smooth entry and exit of the trolley when the muck is recovered, the wellhead plate is designed inside the equipment support frame 1, and the wellhead plate and the base frame are hinged. connection for easy operation. At the same time, a power mechanism is installed on the support frame 1 of the equipment. The power mechanism mainly includes an engine, a hydraulic pump, a hydraulic oil tank, a diesel tank and other control valves.

In summary, the present invention utilizes the rotary drive device to first screw the transmission drill rod 19, the guide drill rod 20 and the drill bit 21 into the formation, and then the excavation mechanism 56 revolves and rotates around the guide drill rod 20, and the rock is layered layer by layer. Crushed and recovered, the recycled muck is lifted outwards and dumped by the hoisting mechanism, and after unloading, the muck bucket 39 enters the hole again to carry out the soil lifting operation. Repeat the above-mentioned program cycle until the dimensions such as the hole depth meet the design requirements.

The above-mentioned embodiments do not impose any formal restrictions on the shape, material, structure, etc. of the present invention. All simple modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention belong to the protection of the technical solutions of the present invention. scope.

Claims (8)

1. The device for drilling, digging, excavating and lifting earth for foundation pit excavation in plateau mountains, including a support frame, is characterized in that: a support frame is provided on the support frame, and two slideway frames are vertically provided on the support frame, and two slideway frames are installed vertically on the support frame. There is a landing bracket between the upper ends of the track frame, and a slideway is vertically arranged in the slideway frame, and a multiplication transmission mechanism is provided on the slideway frame, and a slewing drive device connected with the multiplication transmission mechanism is installed in the slideway, and the slewing drive device A drilling mechanism is connected to the power output end of the drilling mechanism, and the lower end of the drilling mechanism is provided with a digging mechanism and a soil lifting mechanism; The rotary drive device includes a rotary drive seat and a main hydraulic motor arranged on the rotary drive seat. The side of the rotary drive seat is provided with a slide plate that is slidably connected in the slideway. Pulley, movable pulley block, upper plate chain and lower plate chain, the lower end of the lifting hydraulic cylinder is hinged at the lower end of the slide frame, the movable pulley block is set at the upper end of the piston rod of the lifting hydraulic cylinder, the fixed end of the upper plate chain is connected to the upper end of the slide frame, and the upper end of the upper plate chain is connected to the upper end of the slide frame. The fixed end of the plate chain bypasses one pulley of the movable pulley block and the upper fixed pulley in turn, and then connects with the upper end of the slide plate. The fixed end of the lower plate chain is connected to the body of the lifting hydraulic cylinder, and the lower plate chain bypasses the other pulley and the upper fixed pulley of the movable pulley block in turn. After setting the pulley, it is connected with the lower end of the slide plate. 2. The device for drilling, excavating, excavating and lifting earth for foundation pit excavation in plateau mountains according to claim 1, characterized in that: the drilling mechanism includes a drive drill rod, a guide drill rod and a drill bit, and the upper end of the drive drill rod It is connected with the power drive end of the main hydraulic motor. The lower end of the driving drill rod and the upper end of the guide drill rod are coaxially connected through a connecting pipe. The upper end is inserted in the transmission drill pipe and connected to the drive through radially arranged bolts, the drill bit is arranged at the lower end of the guide drill pipe, and the outer wall of the guide drill pipe is symmetrically provided with two guide rails along the axial direction. 3. The device for drilling, digging, digging and lifting soil for foundation pit excavation construction equipment in plateau mountains according to claim 2, characterized in that: the digging mechanism includes an upper base and a lower base, and the middle parts of the upper base and the lower base are both provided with There is a through hole on the guide drill rod and a guide groove slidingly matched with the two guide rails. The upper base is fixedly connected with the guide drill rod through radially arranged limit pins. The lower surface of the upper base and the upper surface of the lower base There are compression springs, two supports are symmetrically arranged on the lower base, each support is equipped with a digging hydraulic motor and a hose reel above the digging hydraulic motor, the main shafts of the two digging hydraulic motors are horizontal It is set and the output end faces oppositely. The outer end of the main shaft of the digging hydraulic motor is coaxially connected with the digging shaft. The digging shaft is provided with spirally arranged digging teeth along the axial direction. on the hose reel. 4. The device for drilling, digging, digging, and soil lifting for foundation pit excavation construction equipment in plateau mountains according to claim 3, characterized in that: the soil lifting mechanism includes a hoist, a tripod, a lifting pulley block, a left casing, and a right casing The pipe and sliding seat, the winch are set on the supporting frame, the lower end of the triangular bracket is hinged on the supporting frame, a jacking hydraulic cylinder is arranged between the upper end of the triangular bracket and the supporting frame, and the fixed pulleys of the lifting pulley block are respectively set on the triangular bracket and the landing bracket On the upper part, the sliding seat is installed on the guide drill pipe. The sliding seat is provided with a chute which slides and cooperates with the two guide rails respectively. A cross bar is arranged horizontally on both sides of the sliding seat, and a slag is arranged under each cross bar. Dirt hopper, each dregs bucket is located on the rear side of a digging shaft, the bottom of the dregs bucket is provided with a discharge valve plate, the side of the dregs bucket near the digging shaft is open, and the top of the dregs bucket is provided with an observation hole , there is a hanging ring on both sides of the upper part of the sliding seat; Both sides of the left casing and the right casing are connected by connecting pins, the left casing and the right casing are respectively threaded on the guide drill pipe, and the inner sides of the left casing and the right casing are respectively provided with a U The left side of the left casing and the right side of the right casing are respectively provided with a hook for hanging the ring, and the left side of the left casing and the right side of the right casing are respectively provided with a hook for limiting the rotation angle of the hook. The baffle, the rear part of each hook is provided with a connecting ring for connecting the pull rope, the side where the left sleeve and the right sleeve are connected to each other is provided with a ring, the hinge point of the hook is close to the side of the ring, the wire rope of the hoist After passing through the pulley on the top of the tripod and the pulley on the landing bracket in turn, it is connected with the suspension ring. 5. The device for drilling, digging, excavating and lifting earth for foundation pit excavation construction equipment in plateau mountains according to claim 1, characterized in that: a climbing ladder is provided between the top of the support frame and the slideway frame, and the support frame and the support A ladder is provided between the tops of the racks. 6. The device for drilling, digging, excavating and lifting earth for foundation pit excavation construction equipment in plateau mountains according to claim 1, characterized in that: the lower end side of the slideway frame is provided with an opening and closing centralizer, and inside the opening and closing centralizer The end is provided with a guide hole for inserting the transmission drill pipe, and the outer end of the opening and closing centralizer is hinged on the slideway frame. 7. The device for drilling, digging, digging and soil lifting for foundation pit excavation construction equipment in plateau mountainous areas according to claim 1, characterized in that: the lower end of the slideway frame is provided with a positioning pin that cooperates with the support frame. 8. The device for drilling, digging, excavating and lifting earth for foundation pit excavation construction equipment in plateau mountains according to claim 2, characterized in that: the drill bit includes a side frame, a side drill bit and a center drill bit, and the side frame is set at the lower end of the guide drill rod On the side, the center drill bit is arranged at the lower end of the guide drill rod. The rotary track of the side frame is a conical structure with a small bottom and a big top, and the side drill bit is arranged on the side frame.