A kind of bridge pier pier base excavation equipment
Technical field
The present invention relates to building field, particularly relate to a kind of bridge pier pier base excavation equipment.
Background technology
At present, relying primarily on rotation and dig pile foundation or hand excavation in the excavation of bridge pier pier base, this mode can not promptly excavate bridge pier pier base, and work efficiency is extremely inefficient.And after bridge pier pier base excavates, often remain many mud etc., this extracts the step of mud with regard to many steps, and this step is often ended at bridge pier pier base to carry out afterwards, carry out i other words bridge pier pier base excavation and mud extract separately substep out, this not only adds construction volume, also extend the engineering time, thus reducing work efficiency.Further, being separate substep to carry out owing to bridge pier pier base extracts with mud, and in the process of bridge pier pier base excavation, often have groundwater seepage and gush, therefore, certain adverse effect will be caused in construction site and construction work by this, thus safety is relatively low.
Therefore, urgent need is a kind of at present can carry out, in bridge pier pier base digging process, the equipment that shale extracts simultaneously.
Summary of the invention
The technical problem to be solved is in that, it is provided that a kind of bridge pier pier base excavation equipment, it is possible to carry out shale in bridge pier pier base digging process simultaneously and extract process, provide not only work efficiency, also provide the working environment of a safety.
In order to solve above-mentioned technical problem, the invention provides a kind of bridge pier pier base excavation equipment, including:
Cushion cap, and it is fixed on the bidirectional hydraulic device on described cushion cap, described cushion cap includes cushion cap body, main shaft and is arranged at least two support leg below described cushion cap body, described main shaft runs through in the middle of described cushion cap body, and removably it is fixed on described cushion cap body, bottom described main shaft, rotation is set by universal rotating shaft connection and digs cutter head, it is provided with slush pump in the middle part of described main shaft, being provided with mud circulation passage in described main shaft, described slush pump is connected with described mud circulation passage.
Further, the porch of described slush pump is provided with filter screen.
Further, described support leg is 4, and each described support leg is all rotationally connected with described cushion cap body.
Closer, described cushion cap body includes the weight-bearing surface and the supporting surface that are oppositely arranged, described supporting surface is evenly arranged with four projections by supporting surface edge, one end of described support leg is rotationally connected by rolling bearing and described projection, and described support leg can range for 0 ° 90 ° relative to what described cushion cap body rotated.
Further, it is provided with bolster in the middle part of described support leg.
Implement the embodiment of the present invention, have the advantages that
Implement the bridge pier pier base excavation equipment of the present invention, make in carrying out pier base digging process, additionally it is possible to carry out extracting of mud simultaneously, improve work efficiency, also avoid the infiltration of subsoil water in digging process to gush out, thus ensure that the safety of construction site and construction environment simultaneously.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is an example structure schematic diagram of the bridge pier pier base excavation equipment of the present invention;
Fig. 2 is the top view of the cushion cap of bridge pier pier base excavation equipment in Fig. 1;
Fig. 3 is the schematic diagram of the rotary cutter group of bridge pier pier base excavation equipment in Fig. 1.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into this scope of protection of the invention.
Referring to Fig. 1, for the structural representation of an embodiment of a kind of bridge pier pier base excavation equipment of the present invention.When being embodied as, in the present embodiment, this bridge pier pier base excavation equipment includes cushion cap 1, and is fixed on the bidirectional hydraulic device 2 on cushion cap 1.In the present embodiment, this cushion cap 1 includes cushion cap body 11, main shaft 12 and is arranged at least two support leg 13 below cushion cap body 1, main shaft 12 runs through in the middle of cushion cap body 11, and removably it is fixed on cushion cap body 11, bottom main shaft 12, rotation is set by universal rotating shaft 4 connection and digs cutter head 5, slush pump 3 it is provided with in the middle part of main shaft 12, and in main shaft 12, it being provided with mud circulation passage 131, slush pump 3 is connected with mud circulation passage 131.In the present embodiment, this bidirectional hydraulic device 2 includes hydraulic cylinder and fixed cover 22, wherein fixed cover 22 is fixing with the push rod of hydraulic cylinder is connected, and it is set in outside above-mentioned main shaft 12, and fixing with this main shaft 12 be connected, thus being driven main shaft 12 to move up and down relative to this cushion cap main body 11 by this hydraulic cylinder, to realize rising or dropping.
In the present embodiment, cutter head 5 is dug by connecting rotation in the bottom of main shaft 12 by universal rotational axle 4, and the main shaft 12 on top can't be driven in rotary course when cutter head 5 is dug in this rotation, and in work process, only rotation digs cutter head 5 in rotation, thus greatly reducing the extra power acted on whole equipment.And owing to different set of blades of arranging on cutter head 5 is dug in rotation, it is possible to facilitate the rotation of pier base to dig and pulverize the stone in shale.And High-power Mud Pump 3 it is equipped with in main shaft 12 centre position, dig cutter head 5 rotation in rotation and dig in process the mud being excavated and sandstone can be expelled to vacant lot from large-diameter pipe road junction with filter screen 6 bottom main shaft 12 by mud circulation passage simultaneously.Namely the present embodiment in the process carrying out bridge pier pier base excavation, can carry out extracting of mud simultaneously.
In the present embodiment, this support leg 13 is specially 4, and each support leg 13 is all rotationally connected with cushion cap body 11.Specifically, this cushion cap body 11 includes the weight-bearing surface 111 and the supporting surface 112 that are oppositely arranged, and it is evenly arranged with four projections 113 by supporting surface 112 edge on this supporting surface 112, the one end supporting leg 13 is flexibly connected with projection 113 by rolling bearing or riveted joint or bolt, and supports leg 13 and can range for 0 ° 90 ° relative to the angle a of cushion cap body 11 rotation.In the present embodiment, it is arranged below being four stent foots 13 having 0 ° 90 ° energy freely movable by cushion cap body 11 so that corresponding angle can be adjusted according to construction site situation, carry out fixing stent foot again through fixing bolt.
Further, cause the blocking of slush pump 3 in order to avoid pulverized stone enters pipeline, the present embodiment is provided with filter screen 6 in the porch of slush pump 3.
Further, in order to reduce the vibrations caused because of construction in work progress and reduce the difference in height caused because geological conditions is variant, ensure being smoothed out of excavation work, in the present embodiment, also being provided with bolster 7 at the middle part of this support leg 13, specifically this bolster 7 can be spring or rubber spring washer etc..
Above disclosed it is only present pre-ferred embodiments, certainly the interest field of the present invention can not be limited with this, one of ordinary skill in the art will appreciate that all or part of flow process realizing above-described embodiment, and according to the equivalent variations that the claims in the present invention are made, still fall within the scope that the present invention contains.