CN205591832U - Rotary digging, jostling and enlarging drill - Google Patents

Rotary digging, jostling and enlarging drill Download PDF

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Publication number
CN205591832U
CN205591832U CN201620271584.0U CN201620271584U CN205591832U CN 205591832 U CN205591832 U CN 205591832U CN 201620271584 U CN201620271584 U CN 201620271584U CN 205591832 U CN205591832 U CN 205591832U
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CN
China
Prior art keywords
pressing arm
bow pressing
bow
fixed disk
rod
Prior art date
Application number
CN201620271584.0U
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Chinese (zh)
Inventor
王春龙
王春虎
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宏源中科(北京)基础工程有限公司
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Priority to CN201620271584.0U priority Critical patent/CN205591832U/en
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Publication of CN205591832U publication Critical patent/CN205591832U/en

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Abstract

The utility model discloses a rotary digging, jostling and enlarging drill belongs to engineering construction pile foundation construction equipment technical field. This rotary digging, jostling and enlarging drill include automobile body and control system, mast, hoist, vertical pressure pneumatic cylinder, go up support cover, under bracing cover, inner drill stem, outside drill pipe, crowd expand pneumatic cylinder, unit head, up -bow pressure arm fixed disk, down bend pressure arm fixed disk, up -bow pressure arm, bend pressure arm, connecting rod and bucket down, this rotary digging, jostling and enlarging drill still includes: boosting pneumatic cylinder and bearing seat, bearing seat sets up the up -bow pressure arm with bend the junction of pressure arm down, the cylinder body of boosting pneumatic cylinder is fixed on the connecting rod, the piston rod of boosting pneumatic cylinder is in horizontal position, and with bearing seat is coaxial, the oil circuit of boosting pneumatic cylinder with the crowded oil circuit intercommunication that expands the pneumatic cylinder. This rotary digging, jostling and enlarging drill promotes the power that bends the initial operation of pressure arm through setting up the boosting pneumatic cylinder for the bow pressure arm still can be opened under the harder condition of soil layer smoothly.

Description

A kind of rotary excavating extruding expanding drilling machine
Technical field
This utility model relates to engineering construction pile foundation construction equipment technical field, digs squeezed particularly to one rotation Rig.
Background technology
Multinode section bored pile is on the basis of script uiform section pile foundation, selects pile body soil layer harder Painstaking layer design expands the dish chamber in aperture, to increase a kind of engineering construction pile foundation of the bearing capacity of ground.? In multinode section bored pile work progress, need first to hole, then carry out squeezed.Many in order to improve The efficiency of construction of node section bored pile, integrates pore-forming and squeezed rotary excavating extruding expanding drilling machine receives extensively General concern.
Existing rotary excavating extruding expanding drilling machine specifically includes that vehicle body and control system, mast, elevator, vertical pressure Hydraulic cylinder, upper support set, lower support set, interior drilling rod, outer drilling rod, squeezed hydraulic cylinder, unit head, up-bow Pressure arm fixed disk, lower bow pressing arm fixed disk, upper bow pressing arm, lower bow pressing arm, connecting rod and bucket, up-bow It is provided with rolling cutting knife on pressure arm and lower bow pressing arm.Vehicle body and control system connect mast.Elevator is arranged on car On body and control system and by steel wire rope connecting steel wire ropes swivel coupling.In steel wire rope swivel coupling connects Drilling rod.The upper end of interior drilling rod connects upper support set, and upper support set is connected with mast and squeezed hydraulic cylinder.Lower Support set is connected with outer drilling rod upper end and is connected with squeezed hydraulic cylinder and mast again simultaneously.The cylinder of vertical pressure hydraulic cylinder Body and piston rod are connected with unit head and mast respectively, and the lower end of interior drilling rod is connected with connecting rod upper end, up-bow Pressure arm fixed disk is connected with outer drilling rod lower end, and connecting rod lower end passes upper bow pressing arm fixed disk and lower bow pressing arm It is connected with bucket after fixed disk.Upper bow pressing arm and lower bow pressing arm respectively with upper bow pressing arm fixed disk and lower bow pressing arm Fixed disk is connected by bearing pin, goes up bow pressing arm simultaneously and lower bow pressing arm is connected by bearing pin.Carrying out multinode Section bored pile construction time, unit head drive in drilling rod, outer drilling rod, upper bow pressing arm, lower bow pressing arm and Bucket rotates, and vertical pressure hydraulic cylinder pressurization simultaneously is vertically holed, after piercing certain depth, squeezed Hydraulic cylinder is opened, and in drive, bow pressing arm and lower bow pressing arm are opened, and rig keeps rotating simultaneously, utilizes rolling to cut The cutter cutting soil body carries out squeezed.After current position squeezed completes, continue to repeat downwards the step of boring-squeezed Suddenly, thus complete multinode section bored pile construction.
During realizing this utility model, the design people finds at least to there is problems in that in prior art In existing rotary excavating extruding expanding drilling machine, upper bow pressing arm and lower bow pressing arm rely on vertically pushing away of squeezed hydraulic cylinder offer The radial component of power completes initial opening action.The radial component of the vertical thrust that squeezed hydraulic cylinder provides is Vertical thrust and bow pressing arm and the product of vertical direction angle sine value.Owing to opening the initial stage at bow pressing arm, bow Pressure arm is less with the angle of vertical direction.Thus cause radial component the least, in the case of soil layer is harder, Bow pressing arm cannot open extruding action.
Utility model content
In order to solve above-mentioned technical problem, this utility model provides the upper bow pressing arm of one and lower bow pressing arm institute By the rotary excavating extruding expanding drilling machine that radial thrust is bigger.
Specifically, including following technical scheme:
A kind of rotary excavating extruding expanding drilling machine, described rotary excavating extruding expanding drilling machine includes: vehicle body and control system, mast, volume Raise, vertical pressure hydraulic cylinder, upper support set, lower support set, interior drilling rod, outer drilling rod, squeezed hydraulic cylinder, Unit head, upper bow pressing arm fixed disk, lower bow pressing arm fixed disk, upper bow pressing arm, lower bow pressing arm, connecting rod with And bucket;Described vehicle body and control system connect described mast;Described elevator is arranged on described vehicle body and control In system and by steel wire rope connecting steel wire ropes swivel coupling;Described steel wire rope swivel coupling connects described interior Drilling rod;The upper end of described interior drilling rod connects described upper support set;Described upper support set and the upper end of described mast And described squeezed hydraulic cylinder connects;Described lower support set is connected with described outer drilling rod upper end, the most also with institute The upper end stating squeezed hydraulic cylinder and described mast connects;Cylinder body and the piston rod of described vertical pressure hydraulic cylinder divide It is not connected with the middle part of described unit head and described mast;Under the upper end of described connecting rod and described interior drilling rod End connects, and the lower end of described connecting rod sequentially passes through described upper bow pressing arm fixed disk and described lower bow pressing arm is solid It is connected with described bucket after price fixing;The upper end of described upper bow pressing arm is articulated and connected with described upper bow pressing arm fixed disk, The lower end of described lower bow pressing arm is articulated and connected with described lower bow pressing arm fixed disk, the lower end of described upper bow pressing arm with The upper end thereof of described lower bow pressing arm connects;
Described rotary excavating extruding expanding drilling machine also includes: boosting hydraulic cylinder and force-bearing base;Described force-bearing base is arranged on institute State the junction of bow pressing arm and described lower bow pressing arm;The cylinder body of described boosting hydraulic cylinder is fixed on described connection On bar;The piston rod of described boosting hydraulic cylinder is horizontal, and coaxial with described force-bearing base;Described The oil circuit of boosting hydraulic cylinder and the oil communication of described squeezed hydraulic cylinder.
Further, described force-bearing base is provided with the connection of U-lag, described upper bow pressing arm and lower bow pressing arm Place is positioned at the center of the piston rod of described U-lag, the axis of symmetry of described U-lag and described boosting hydraulic cylinder Axle is on same horizontal line.
Further, the quantity of described upper bow pressing arm is three, and the quantity of described lower bow pressing arm is three, three Individual described upper bow pressing arm and three described lower bow pressing arm one_to_one corresponding;Three described upper bow pressing arms are along described up-bow The circumferencial direction of pressure arm fixed disk is uniformly distributed;Three described lower bow pressing arms are along described lower bow pressing arm fixed disk Circumferencial direction is uniformly distributed.
Further, the quantity of described force-bearing base is three, and the quantity of described boosting hydraulic cylinder is three;Institute State the junction one_to_one corresponding of force-bearing base, described boosting hydraulic cylinder and described upper bow pressing arm and lower bow pressing arm.
Further, described rotary excavating extruding expanding drilling machine also includes: waist bucket;Described waist bucket is hollow circular cylinder, institute State waist bucket and be fixed on the lower end of described outer drilling rod;Described connecting rod sequentially passes through described waist bucket, described up-bow pressure It is connected with described bucket after arm fixed disk and described lower bow pressing arm fixed disk;Described waist bucket and described connecting rod Coaxially.
Further, described rotary excavating extruding expanding drilling machine also includes: pull bar and pull bar regulation parts;Described pull bar Upper end be fixed on described waist bucket, the lower end of described pull bar sequentially pass through described upper bow pressing arm fixed disk and Described lower bow pressing arm fixed disk;Described pull bar is parallel with described connecting rod;Described upper bow pressing arm fixed disk and It is separately provided for the through hole through described pull bar on lower bow pressing arm fixed disk;Described pull bar regulation parts set Put in described pull bar lower end and fixing with described pull bar be connected, and described pull bar regulate parts be positioned at described under Below bow pressing arm fixed disk.
Further, described pull bar regulation parts are nut, and described pull bar lower end is provided with external screw thread, described The external screw thread of pull bar lower end matches with the female thread of described nut.
Further, described pull bar is provided with many, and many described pull bars are equal along the circumferencial direction of described waist bucket Even distribution.
Further, the two ends up and down of described connecting rod are respectively by pin and described interior drilling rod and described bucket Connect;The upper end of described upper bow pressing arm is connected by hinge with described upper bow pressing arm fixed disk;Under described The lower end of bow pressing arm is connected by hinge with described lower bow pressing arm fixed disk, the lower end of described upper bow pressing arm It is connected by hinge with the upper end of described lower bow pressing arm.
The beneficial effect of the technical scheme that this utility model embodiment provides:
In the rotary excavating extruding expanding drilling machine that this utility model embodiment provides, in the connection of upper bow pressing arm Yu lower bow pressing arm Place arranges force-bearing base, arranges the boosting hydraulic cylinder coaxial with force-bearing base, and boosting liquid in connecting rod simultaneously The piston of cylinder pressure can be synchronized with the movement with the piston of squeezed hydraulic cylinder.In rotary excavating extruding expanding drilling machine work process, After vertically piercing certain depth, squeezed hydraulic cylinder is opened, bow pressing arm and the company of lower bow pressing arm in drive Contact moves radially outwards, and meanwhile, the piston rod of boosting hydraulic cylinder radially stretches out, to holding Power seat applies active force, thus improves the radial thrust suffered by the junction point of upper bow pressing arm and lower bow pressing arm, Particularly improve the radial thrust being subject in the initial opening procedure of bow pressing arm, be obviously improved bow pressing arm initial job Power so that bow pressing arm in the case of soil layer is harder can smooth opening, improve multinode variable cross-section fill Note pile driving construction working performance.
Accompanying drawing explanation
In order to be illustrated more clearly that the technical scheme in this utility model embodiment, embodiment will be described below The accompanying drawing used required in is briefly described, it should be apparent that, the accompanying drawing in describing below is only this Some embodiments of utility model, for those of ordinary skill in the art, are not paying creative work On the premise of, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
The structural representation of the rotary excavating extruding expanding drilling machine that Fig. 1 provides for this utility model embodiment;
Rotary excavating extruding expanding drilling machine middle part of the side bucket that Fig. 2 provides for this utility model embodiment, pull bar, boosting hydraulic cylinder And the partial enlarged drawing of force-bearing base;
Fig. 3 is the sectional view in Fig. 2 along A-A direction;
Fig. 4 is the sectional view in Fig. 2 along B-B direction;
In the rotary excavating extruding expanding drilling machine that Fig. 5 provides for this utility model embodiment, upper bow pressing arm and lower bow pressing arm connect The force analysis figure at place.
In figure, reference represents respectively:
1-vehicle body and control system;
2-elevator;
3-mast;
4-vertical pressure hydraulic cylinder;
5-steel wire rope;
The upper support set of 6-;
7-steel wire rope swivel coupling;
Drilling rod in 8-;
The squeezed hydraulic cylinder of 9-;
Support set under 10-;
The outer drilling rod of 11-;
12-unit head;
13-waist bucket;
14-pull bar;
15-upper bow pressing arm fixed disk;
The upper bow pressing arm of 16-;
17-boosting hydraulic cylinder;
18-force-bearing base;
Bow pressing arm under 19-;
Bow pressing arm fixed disk under 20-;
21-bucket;
22-connecting rod;
23-pull bar regulation parts;
The vertical thrust of N-;
The radial component of the vertical thrust of N1-;
The axial thrust load of the vertical thrust of N2-;
The boosting power that Nk-boosting hydraulic cylinder provides;
α-bow pressing arm and the angle of vertical direction.
Detailed description of the invention
For making the technical solution of the utility model and advantage clearer, new to this practicality below in conjunction with accompanying drawing Type embodiment is described in further detail.Unless otherwise defined, the institute used by this utility model embodiment Technical term is had to be respectively provided with the identical implication being generally understood that with those skilled in the art.
" radial thrust " described in this utility model embodiment is to instigate up-bow pressure arm and the connection of lower bow pressing arm Point is along being parallel to the power that bow pressing arm fixed disk (or lower bow pressing arm fixed disk) radial direction moves out.
This utility model embodiment provides a kind of rotary excavating extruding expanding drilling machine, sees Fig. 1 and combines Fig. 2, and this rotation is dug crowded Expanding drilling machine includes: vehicle body and control system 1, mast 3, elevator 2, vertical pressure hydraulic cylinder 4, upper support Set 6, lower support set 10, interior drilling rod 8, outer drilling rod 11, squeezed hydraulic cylinder 9, unit head 12, up-bow pressure Arm fixed disk 15, lower bow pressing arm fixed disk 20, upper bow pressing arm 16, lower bow pressing arm 19, connecting rod 22 and Bucket 21.Vehicle body and control system 1 connect mast 3;Elevator 2 is arranged in vehicle body and control system 1 also And by steel wire rope 5 connecting steel wire ropes swivel coupling 7;Steel wire rope swivel coupling 7 connects interior drilling rod 8;Interior brill The upper end of bar 8 connects upper support set 6;Upper support set 6 is connected with the upper end of mast 3 and squeezed hydraulic cylinder 9; Lower support set 10 is connected with outer drilling rod 11 upper end, and the most also upper end with squeezed hydraulic cylinder 9 and mast 3 connects Connect;The cylinder body of vertical pressure hydraulic cylinder 4 and piston rod middle part with unit head 12 and mast 3 respectively is connected; The upper end of connecting rod 22 is connected with the lower end of interior drilling rod 8, and the lower end of connecting rod 22 sequentially passes through bow pressing arm It is connected with bucket 21 after fixed disk 15 and lower bow pressing arm fixed disk 20;The upper end of upper bow pressing arm 16 is with upper Bow pressing arm fixed disk 15 is articulated and connected, and the lower end of lower bow pressing arm 19 is articulated and connected with lower bow pressing arm fixed disk 20, The lower end of upper bow pressing arm 16 is connected with the upper end thereof of lower bow pressing arm 19.
This rotary excavating extruding expanding drilling machine also includes: boosting hydraulic cylinder 17 and force-bearing base 18;Force-bearing base 18 is arranged on Upper bow pressing arm 16 and the junction of lower bow pressing arm 19;The cylinder body of boosting hydraulic cylinder 17 is fixed on connecting rod 22 On;The piston rod of boosting hydraulic cylinder 17 is horizontal, and coaxial with force-bearing base 18;Boosting hydraulic pressure The oil circuit of cylinder 17 and the oil communication of squeezed hydraulic cylinder 9.
The operation principle of the rotary excavating extruding expanding drilling machine that this utility model embodiment provides is: cut carrying out multinode change During the filling pile construction of face, first by unit head 12 drive interior drilling rod 8, outer drilling rod 11, upper bow pressing arm 16, under Bow pressing arm 19 and bucket 21 rotate, and vertical pressure hydraulic cylinder 4 pressurization simultaneously is vertically holed, and works as brill After entering certain depth, squeezed hydraulic cylinder 9 is opened, bow pressing arm 16 and the junction point of lower bow pressing arm 19 in drive Moving radially outwards, meanwhile, the piston rod of boosting hydraulic cylinder 17 radially stretches out, to load Seat 18 applies active force, bow pressing arm 16 and the radial thrust suffered by junction point of lower bow pressing arm 19 in increase, Complete the opening action of bow pressing arm, thus complete the squeezed work of current position.Then proceed to repeat downwards Above-mentioned boring-squeezed step, completes the construction of multinode section bored pile.
The operation principle of the rotary excavating extruding expanding drilling machine according to the offer of above-mentioned this utility model embodiment and Fig. 5, this reality With in the rotary excavating extruding expanding drilling machine of new embodiment, in bow pressing arm opening procedure, upper bow pressing arm 16 and lower bow pressure Radial thrust suffered by the junction point of arm 19 is divided except the radial direction of vertical thrust N that squeezed hydraulic cylinder 9 provides Power N1 (i.e. N sin α) outward, also includes boosting power Nk that boosting hydraulic cylinder 17 provides, it can be seen that, this In the rotary excavating extruding expanding drilling machine of utility model embodiment, the junction point of upper bow pressing arm 16 and lower bow pressing arm 19 is subject to Radial thrust much larger than suffered by the junction point of upper bow pressing arm and lower bow pressing arm in existing rotary excavating extruding expanding drilling machine Radial thrust, particularly initially open at bow pressing arm, the angle α of bow pressing arm and vertical direction less time, effect The most more significantly.Therefore, the rotary excavating extruding expanding drilling machine of this utility model embodiment can be in the harder situation of soil layer Under complete the initial opening action of bow pressing arm, expand the range of application of rotary excavating extruding expanding drilling machine.Need explanation It is that along with opening of bow pressing arm, bow pressing arm is gradually increased with the angle α of vertical direction, when squeezed hydraulic cylinder 9 The radial component of vertical thrust provided disclosure satisfy that bow pressing arm is opened when needing, and can stop boosting hydraulic cylinder The operation of 17, with cost-effective, reduction energy consumption.
Simultaneously as bow pressing arm is easily opened and has in the rotary excavating extruding expanding drilling machine of this utility model embodiment Bigger radial thrust, therefore, need not at bow pressing arm in the rotary excavating extruding expanding drilling machine of this utility model embodiment On rolling cutting knife is set, i.e. this utility model embodiment provides rotary excavating extruding expanding drilling machine to be entirely and relies on bow pressing arm Squeezed effect carries out reaming, without carrying out cutting the soil body.For existing rotary excavating extruding expanding drilling machine, When relatively hard stratum reversion is with the side rolling cutting knife cutting soil body, owing to dish chamber is for pile body diverse location, and Dish height is typically small, easily the soil body is produced disturbance, causes collapse hole or affect supporting course bearing capacity.And this reality Then effectively prevent the disturbance to the soil body with the rotary excavating extruding expanding drilling machine of new embodiment, prevent collapse hole, it is ensured that be many The safety of node section bored pile construction.
It will be appreciated by persons skilled in the art that the oil circuit of above-mentioned boosting hydraulic cylinder 17 and squeezed hydraulic cylinder 9 Oil communication be that the piston rod being capable of the piston rod of squeezed hydraulic cylinder 9 and boosting hydraulic cylinder 17 synchronizes Motion is as the criterion, and i.e. when the piston rod of squeezed hydraulic cylinder 9 is protruding, the piston rod of boosting hydraulic cylinder 17 is also Protruding;When the piston rod of squeezed hydraulic cylinder 9 is to contract, the piston rod of boosting hydraulic cylinder 17 also to Contract.
Further, in the rotary excavating extruding expanding drilling machine of this utility model embodiment, force-bearing base 18 is at upper bow pressing arm 16 With the set-up mode of lower bow pressing arm 19 junction particularly as follows: be provided with U-lag, up-bow pressure on force-bearing base 18 Arm 16 is positioned at U-lag with the junction of lower bow pressing arm 19, the axis of symmetry of U-lag and boosting hydraulic cylinder 17 The central axis of piston rod on same horizontal line.It should be noted that force-bearing base 18 should be merely able to Radial motion is made with the junction point of upper bow pressing arm 16 with lower bow pressing arm 19, and can not be relative to upper bow pressing arm 16 Rotate with the junction point of lower bow pressing arm 19.
Further, seeing Fig. 2, on the rotary excavating extruding expanding drilling machine of this example, the quantity of bow pressing arm 16 is three, The quantity of lower bow pressing arm 19 is similarly three, three upper bow pressing arms 16 and three lower bow pressing arm 19 one_to_one corresponding; On three, bow pressing arm 16 is uniformly distributed along the circumferencial direction of upper bow pressing arm fixed disk 15;Three lower bow pressing arms 19 Circumferencial direction along lower bow pressing arm fixed disk 20 is uniformly distributed.By upper bow pressing arm 16 and the number of lower bow pressing arm 19 Amount is set to three, has advantageously reduced the squeezed required squeezed number of times of a cavity.Basis at this On, the quantity of force-bearing base 18 is three, and the quantity of boosting hydraulic cylinder 17 is also three.Force-bearing base 18, help Push away the junction one_to_one corresponding of hydraulic cylinder 17 and upper bow pressing arm 16 and lower bow pressing arm 19.People in the art Member it is understood that the quantity of upper bow pressing arm 16 and lower bow pressing arm 19 can also be four or four with On, concrete quantity is as the criterion being capable of squeezed function under the Power Limitation of squeezed hydraulic cylinder 9.Load Seat 18 should be corresponding with the quantity of upper bow pressing arm 16 and lower bow pressing arm 19 with the quantity of boosting hydraulic cylinder 17. Meanwhile, the motion of the piston of each boosting hydraulic cylinder 17 should keep synchronizing, to ensure that stake holes inwall soil layer is subject to Power is uniform, thus ensures the construction quality of multinode section bored pile.
Further, seeing Fig. 2, rotary excavating extruding expanding drilling machine also includes: waist bucket 13;Waist bucket 13 is hollow circuit cylinder Body, waist bucket 13 is fixed on the lower end of outer drilling rod 11;Connecting rod 22 sequentially passes through waist bucket 13, upper bow pressing arm admittedly It is connected with bucket 21 after price fixing 15 and lower bow pressing arm fixed disk 20.Waist bucket 13 is coaxial with connecting rod 22. By arranging waist bucket 13, it is to avoid the upper direct and outer drilling rod 11 of bow pressing arm fixed disk 15 connects, to upper bow pressing arm Fixed disk 15 and outer drilling rod 11 are protected.
Further, seeing Fig. 2 and Fig. 3, the rotary excavating extruding expanding drilling machine of this utility model embodiment also includes: draw Bar 14 and pull bar regulation parts 23.The upper end of pull bar 14 is fixed on waist bucket 13, the lower end of pull bar 14 Sequentially pass through bow pressing arm fixed disk 15 and lower bow pressing arm fixed disk 20.Pull bar 14 is parallel with connecting rod 22. Leading to through pull bar 14 it is separately provided on upper bow pressing arm fixed disk 15 and lower bow pressing arm fixed disk 20 Hole.Pull bar regulation parts 23 are arranged on pull bar 14 lower end and fixing with pull bar 14 are connected, and pull bar regulates Parts 23 are positioned at below lower bow pressing arm fixed disk 20.In this utility model embodiment, pull bar 14 is up-bow pressure Arm 16 and lower bow pressing arm 19 provide and support and protection, and limit in squeezing process bow pressing arm 16 and under The radial position of bow pressing arm 19.Meanwhile, regulate the parts 23 position on pull bar 14 by adjusting yoke, The lower bow pressing arm fixed disk 20 position on pull bar 14, and then the bow pressing arm of installation different model can be changed, Realize a machine many types of.In this utility model embodiment, pull bar regulation parts 23 can be nut, pull bar 14 Then use high-strength bolt, the external screw thread matched with nut inner thread is set in the lower end of pull bar 14, passes through Cooperating of internal and external threads, it is achieved pull bar regulation parts 23 fixing on pull bar 14.This utility model In embodiment, pull bar 14 is provided with many, preferably three, it is also possible to be four or more than four, many Pull bar 14 should be uniformly distributed along the circumferencial direction of waist bucket 13.Meanwhile, seeing Fig. 2, this utility model is implemented In example, it is arranged on bow pressing arm fixed disk 15 and lower bow pressing arm fixed disk 20 for through pull bar 14 Through hole can be complete circular hole, it is also possible to for semicircle or the opening of U-shaped.
Further, in this utility model embodiment, the upper end of upper bow pressing arm 16 and upper bow pressing arm fixed disk 15 Connected by hinge;The lower end of lower bow pressing arm 19 is with lower bow pressing arm fixed disk 20 by hinge even Connecing, the lower end of upper bow pressing arm 16 is connected by hinge with the upper end of lower bow pressing arm 19.Art technology Personnel are it is understood that the upper end of the lower end and lower bow pressing arm 19 of working as upper bow pressing arm 16 is realized by bearing pin When being articulated and connected, through hole, up-bow can be offered in the position that two sides of U-lag of force-bearing base 18 are corresponding The two ends of the bearing pin of the junction of pressure arm 16 and lower bow pressing arm 19 are each passed through above-mentioned two sides of U-lag Interference fit or the fixing connected mode such as threaded is used between through hole, and bearing pin with through hole, in case When the junction point of upper bow pressing arm 16 and lower bow pressing arm 19 makees radial motion, force-bearing base 18 is relative to up-bow pressure Arm 16 rotates with the junction point of lower bow pressing arm 19.In this utility model embodiment, connecting rod 22 upper Lower two ends are connected with interior drilling rod 8 and bucket 21 by pin respectively.
To sum up, in the rotary excavating extruding expanding drilling machine that this utility model embodiment provides, by arranging boosting hydraulic cylinder Bow pressing arm and the radial thrust suffered by junction point of lower bow pressing arm in increase, thus promote bow pressing arm and initially make The power of industry so that bow pressing arm remains able to smooth opening in the case of soil layer is harder, improves efficiency of construction, Expand the range of rotary excavating extruding expanding drilling machine.Meanwhile, the rotary excavating extruding expanding drilling machine of this utility model embodiment saves Remove rolling cutting knife, in multinode section bored pile work progress, only relied on opening of bow pressing arm and carry out Reaming, it is to avoid the soil body is produced disturbance and causes collapse hole, it is ensured that the safety of construction.Additionally, pull bar and drawing The setting of bar regulation parts, on the one hand plays a protective role to bow pressing arm, is on the other hand easily installed different shaped Number bow pressing arm, it is achieved a machine is many types of.
The above is for only for ease of those skilled in the art and understands the technical solution of the utility model, and Not in order to limit this utility model.All within spirit of the present utility model and principle, any amendment of being made, Equivalent, improvement etc., within should be included in protection domain of the present utility model.

Claims (9)

1. a rotary excavating extruding expanding drilling machine, described rotary excavating extruding expanding drilling machine includes: vehicle body and control system (1), mast Bar (3), elevator (2), vertical pressure hydraulic cylinder (4), upper support set (6), lower support set (10), interior Drilling rod (8), outer drilling rod (11), squeezed hydraulic cylinder (9), unit head (12), upper bow pressing arm fixed disk (15), Lower bow pressing arm fixed disk (20), upper bow pressing arm (16), lower bow pressing arm (19), connecting rod (22) and dig Bucket (21);
Described vehicle body and control system (1) connect described mast (3);Described elevator (2) is arranged on described Vehicle body and control system (1) above and pass through steel wire rope (5) connecting steel wire ropes swivel coupling (7);Described Steel wire rope swivel coupling (7) connects described interior drilling rod (8);The upper end of described interior drilling rod (8) connects described Upper support set (6);The upper end of described upper support set (6) and described mast (3) and described squeezed hydraulic pressure Cylinder (9) connects;Described lower support set (10) is connected, the most also with institute with described outer drilling rod (11) upper end The upper end stating squeezed hydraulic cylinder (9) and described mast (3) connects;Described vertical pressure hydraulic cylinder (4) Cylinder body and piston rod middle part with described unit head (12) and described mast (3) respectively is connected;Described connection The upper end of bar (22) is connected with the lower end of described interior drilling rod (8), and the lower end of described connecting rod (22) is successively Through described upper bow pressing arm fixed disk (15) and described lower bow pressing arm fixed disk (20) afterwards with described bucket (21) connect;The upper end of described upper bow pressing arm (16) and the hinged company of described upper bow pressing arm fixed disk (15) Connecing, the lower end of described lower bow pressing arm (19) is articulated and connected with described lower bow pressing arm fixed disk (20), described The lower end of upper bow pressing arm (16) is connected with the upper end thereof of described lower bow pressing arm (19);
It is characterized in that,
Described rotary excavating extruding expanding drilling machine also includes: boosting hydraulic cylinder (17) and force-bearing base (18);
Described force-bearing base (18) is arranged on the company of described upper bow pressing arm (16) and described lower bow pressing arm (19) Meet place;
The cylinder body of described boosting hydraulic cylinder (17) is fixed in described connecting rod (22);Described boosting hydraulic pressure The piston rod of cylinder (17) is horizontal, and coaxial with described force-bearing base (18);Described boosting liquid The oil circuit of cylinder pressure (17) and the oil communication of described squeezed hydraulic cylinder (9).
Rotary excavating extruding expanding drilling machine the most according to claim 1, it is characterised in that described force-bearing base (18) On be provided with U-lag, described upper bow pressing arm (16) is positioned at described U with the junction of lower bow pressing arm (19) In shape groove, the central axis of the piston rod of the axis of symmetry of described U-lag and described boosting hydraulic cylinder (17) in On same horizontal line.
Rotary excavating extruding expanding drilling machine the most according to claim 1, it is characterised in that described upper bow pressing arm (16) Quantity be three, the quantity of described lower bow pressing arm (19) is three, three described upper bow pressing arms (16) Lower bow pressing arm (19) one_to_one corresponding described with three;Three described upper bow pressing arms (16) are along described up-bow pressure The circumferencial direction of arm fixed disk (15) is uniformly distributed;Three described lower bow pressing arms (19) are along described lower bow pressure The circumferencial direction of arm fixed disk (20) is uniformly distributed.
Rotary excavating extruding expanding drilling machine the most according to claim 3, it is characterised in that described force-bearing base (18) Quantity be three, the quantity of described boosting hydraulic cylinder (17) is three;Described force-bearing base (18), described One a pair, the junction of boosting hydraulic cylinder (17) and described upper bow pressing arm (16) and lower bow pressing arm (19) Should.
Rotary excavating extruding expanding drilling machine the most according to claim 1, it is characterised in that described rotary excavating extruding expanding drilling machine Also include: waist bucket (13);Described waist bucket (13) is hollow circular cylinder, and described waist bucket (13) is fixed on institute State the lower end of outer drilling rod (11);Described connecting rod (22) sequentially passes through described waist bucket (13), described up-bow Pressure arm fixed disk (15) and described lower bow pressing arm fixed disk (20) are connected with described bucket (21) afterwards; Described waist bucket (13) is coaxial with described connecting rod (22).
Rotary excavating extruding expanding drilling machine the most according to claim 5, it is characterised in that described rotary excavating extruding expanding drilling machine Also include: pull bar (14) and pull bar regulation parts (23);
The upper end of described pull bar (14) is fixed on described waist bucket (13), the lower end of described pull bar (14) Sequentially pass through described upper bow pressing arm fixed disk (15) and described lower bow pressing arm fixed disk (20);Described pull bar (14) parallel with described connecting rod (22);Described upper bow pressing arm fixed disk (15) and lower bow pressing arm are solid Price fixing is separately provided for the through hole through described pull bar (14) on (20);
Described pull bar regulation parts (23) be arranged on described pull bar (14) lower end and with described pull bar (14) Fix and connect, and described pull bar regulation parts (23) is positioned at described lower bow pressing arm fixed disk (20) lower section.
Rotary excavating extruding expanding drilling machine the most according to claim 6, it is characterised in that described pull bar regulation parts (23) being nut, described pull bar (14) lower end is provided with external screw thread, outside described pull bar (14) lower end Screw thread matches with the female thread of described nut.
Rotary excavating extruding expanding drilling machine the most according to claim 6, it is characterised in that described pull bar (14) sets Being equipped with many, many described pull bars (14) are uniformly distributed along the circumferencial direction of described waist bucket (13).
Rotary excavating extruding expanding drilling machine the most according to claim 1, it is characterised in that described connecting rod (22) Two ends up and down be connected with described interior drilling rod (8) and described bucket (21) by pin respectively;Described up-bow The upper end of pressure arm (16) is connected by hinge with described upper bow pressing arm fixed disk (15);Described lower bow The lower end of pressure arm (19) is connected by hinge with described lower bow pressing arm fixed disk (20), described up-bow The lower end of pressure arm (16) is connected by hinge with the upper end of described lower bow pressing arm (19).
CN201620271584.0U 2016-04-01 2016-04-01 Rotary digging, jostling and enlarging drill CN205591832U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105696943A (en) * 2016-04-01 2016-06-22 宏源中科(北京)基础工程有限公司 Rotary excavation, extrusion and expansion drilling machine
CN106762968A (en) * 2016-12-29 2017-05-31 徐州徐工液压件有限公司 A kind of reverse telescopic multi-stage hydraulic cylinder
CN109882075A (en) * 2019-03-26 2019-06-14 北京荣创岩土工程股份有限公司 A kind of Counterboring apparatus and the multi-functional pore-forming equipment of bore expanded hole

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105696943A (en) * 2016-04-01 2016-06-22 宏源中科(北京)基础工程有限公司 Rotary excavation, extrusion and expansion drilling machine
CN106762968A (en) * 2016-12-29 2017-05-31 徐州徐工液压件有限公司 A kind of reverse telescopic multi-stage hydraulic cylinder
CN106762968B (en) * 2016-12-29 2018-03-20 徐州徐工液压件有限公司 A kind of reversely telescopic multi-stage hydraulic cylinder
CN109882075A (en) * 2019-03-26 2019-06-14 北京荣创岩土工程股份有限公司 A kind of Counterboring apparatus and the multi-functional pore-forming equipment of bore expanded hole
CN109882075B (en) * 2019-03-26 2020-08-11 北京荣创岩土工程股份有限公司 Reaming device and multifunctional drilling equipment for drilling and reaming

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