CN202492874U

CN202492874U - Modified pneumatic notching drill

Info

Publication number: CN202492874U
Application number: CN2012201043621U
Authority: CN
Inventors: 牛伟民
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-03-19
Filing date: 2012-03-19
Publication date: 2012-10-17
Anticipated expiration: 2022-03-19

Abstract

The utility model relates to a drilling tool, in particular to a modified pneumatic notching drill which can conduct notching directly without depending on a cut hole, and is strong in deslagging capacity, and is wide in applicable scope. The modified pneumatic notching drill comprises a conduit, an inlet air pipe fixedly connected with the conduit, a trumpet-shaped pipe body sleeved outside the conduit in a rotating mode, a fixing frame connected with the conduit, and cut-off wheels disposed on the fixing frame through a bearing, wherein the lower ends of the inlet air pipe and the conduit are both above or parallel to a lower edge of the fixing frame, an outlet of the inlet air pipe is provided with an exit pipe corresponding to the cut-off wheels, each cut-off wheel is correspondingly provided with at least one exit pipe, and the outlet air pipes are used for enabling airflow in the inlet air pipe to rush out oppositely and to direct at the cut-off wheels. The modified pneumatic notching drill has the advantages that notching operation can be conducted directly without notching of cut holes, construction efficiency and adaptability of the drill are largely improved, the design is reasonable, the structure is simple and is simplified, maintenance costs are reduced, the service life is prolonged, and processing and manufacturing are more convenient at the same time.

Description

The pneumatic slotting drill bit of improvement

Technical field

The utility model relates to a kind of drilling tool, is specially a kind of pneumatic slotting drill bit of improvement.

Background technology

Construction such as diaphragm wall, waterproof/drainage structure, needed geosyncline is for constructing underground building on the one hand, on the one hand also for necessary place, condition and space is provided for underground construction.In the prior art, the excavation construction of geosyncline adopts usually artificial to be accomplished with excavator, also has to excavate through rig to manage the method that is communicated with again, generally is applied to construction of continuous concrete wall.Manual work needs enough spaces to supply in foundation ditch, to construct under the people; And engineering structures reality does not need so big space; Therefore long in time limit, speed is slow, increase cost; Though the excavator speed of application is accelerated relatively, the excavation side of native stone is big, precision is low, cost is high, and need not excavate the geosyncline of big width sometimes; And, can only take big width excavation for dark narrow geosyncline, and the way of backfill more afterwards, for the dark narrow geosyncline of tens meters even tens meters, excavator can't be accomplished basically.Rig creeps into the method for managing to be communicated with grooving again and often is applied in the geosyncline broad, adopts the situation of mud off, and speed of application is slow, and technology is also very complicated, and cost is high; Therefore the excavation for dark narrow geosyncline is a great problem in the construction always.

For this reason the applicant once disclosed name be called " pneumatic slotting drill bit " (application number: pneumatic fluting machinery 201120248943.8), the employing air-flow is pneumatic, makes blade and cutting blade high speed rotating cutting rock; Accomplish deslagging simultaneously; Can accomplish the excavation of dark narrow geosyncline efficiently, fluting speed is fast, and the degree of depth is big; Greatly reduce cost, kept ground original state property preferably.But because actual operating conditions is more abominable, the problem that can occur being short of power; And what constructed is dark narrow geosyncline, so conduit can not well accomplish deslagging, makes sediment pile up, and is difficult for discharging; The inside of cutting wheel has also filled up native slag, influences pneumatic effect, reduces service efficiency; It is loosening to occur simultaneously fixed mount easily, and cutting wheel, conduit, air inlet pipe and sediment deposit storehouse can not well be fixed and the location, influence equipment life.Therefore I again application disclose name and be called " a kind of improved pneumatic slotting drill bit " (application number: pneumatic fluting machinery 201120509846.X) strengthens the collection discharge ability of dregs through the horn-like body that is provided with; Utilize the air inlet pipe of changes of section not only reasonably to make cutting wheel 4 layouts and motion, and can be provided with the ventilation mud hole on the cutting wheel, it can not stopped up by native slag, improved operating efficiency each cutting wheel balanced ventilation.

Though the life-span prolongs, pneumatic effect improves, and receives the slag deslagging ability and has promoted, and in the middle of actual use, deslagging ability still can not satisfy; Air-flow also will be accomplished deslagging when driving cutting wheel, in the flow area that limits, the deslagging effect is difficult to further lifting, after native slag is collected in the horn-like body, the time regular meeting cause deslagging unfavorable because of airflow drops, or even stop up; And when the described two kinds of pneumatic fluting machineries of face are slotted operation before use; The rock mass that must before construction, split geosyncline carries out the excavation of easer; Then with the operation of slotting downwards of corresponding again each easer of pneumatic slotting drill bit, make the use of pneumatic slotting drill bit must rely on the excavation of easer, operation is loaded down with trivial details; Influence the progress of engineering, also reduced the scope of application of pneumatic slotting drill bit simultaneously.

Summary of the invention

The purpose of the utility model is to provide a kind of easer that need not to rely on, and can directly slot, and deslagging ability is strong, the pneumatic slotting drill bit of improvement applied widely.

The pneumatic slotting drill bit of the utility model improvement comprises conduit, the air inlet pipe that is fixedly connected with conduit, and turning set is connected on the outside horn-like body of conduit, is connected supravasal fixed mount, is arranged on the cutting wheel on the fixed mount through bearing; It is characterized in that:

Described air inlet pipe all is higher than fixed mount lower edge or concordant with the fixed mount lower edge with the conduit lower end;

The air inlet pipe outlet is provided with the escape pipe of corresponding cutting wheel, and each cutting wheel correspondence at least is provided with an escape pipe;

Escape pipe is used for making the air-flow of air inlet pipe oppositely to go out and point to cutting wheel.

Further, described horn-like body is provided with several and helps slag-draining device, helps slag-draining device to comprise high pressure gas pipeline and is connected the nozzle on the high pressure gas pipeline.

Further, it is inboard that described nozzle is fixed on horn-like body below, and its outlet upwards is provided with.

Further, be provided with motor or air motor in the central through hole of described fixed mount position of bearings, cutting wheel is fixed on the output shaft of motor or air motor.

The pneumatic slotting drill bit of the utility model improvement is compared original disclosed technology, and its beneficial effect is,

The air inlet pipe that is provided with all is higher than fixed mount lower edge or concordant with the fixed mount lower edge with the conduit lower end; The globality of drill bit improves greatly, and the direct and cutting wheel effect of the fluting rock mass of lower end need not to consider that conduit and air inlet pipe are hindered by rock mass again; Can need not to excavate easer; The operation of directly slotting has improved the efficient of construction and the compliance of drill bit greatly.

Set out tracheae in terminal directly connection of air inlet pipe, controlled the direction of air-flow on the one hand, reduced the energy loss of air-flow on the other hand, improved the directive property and the driving force of air-flow, reasonable in design, simple in structure.

Catheter tip no longer is provided with dividing plate and sediment deposit storehouse, owing to need not to excavate easer, the native slag of whereabouts directly is scattered on the work plane; Cutting wheel is directly brought in the conduit again, discharges designs simplification then; Reduced the application life of maintenance cost and prolongation, made processing and fabricating convenient simultaneously.

Through the slag-draining device that helps that on horn-like body, is provided with; Interim adds strong wind to the dregs effect; In time replenish the wind-force that weakens, add the effect of strong wind, dregs can be discharged from horn-like body smoothly in dregs collection place; Strengthen deslagging ability, improved the stability of work and the efficient of work.

Adopt motor or air motor part power to be provided, cutting wheel can be started fast, raise the efficiency cutting wheel; Not only energy-conserving and environment-protective; Simple in structure, easy to use, and can be good at combining the configuration of drill bit when using air motor; Can also improved utilization ratio of wind energy by the air motor utilization behind the effect cutting wheel in the wind.

Description of drawings

Fig. 1 is the structural representation of the utility model embodiment

Fig. 2 is the structural representation of air inlet pipe among the utility model embodiment

Fig. 3 is the sectional view at air inlet pipe 1-1 place among Fig. 2

Fig. 4 is the sectional view at air inlet pipe 2-2 place among Fig. 2

Among the figure: conduit 1, air inlet pipe 2, horn-like body 3, fixed mount 4, cutting wheel 5, escape pipe 6, high pressure gas pipeline 7, nozzle 8, baffle plate 9

The specific embodiment

Below in conjunction with embodiment the utility model is further described.

The pneumatic slotting drill bit of the utility model improvement, as shown in Figure 1, comprise conduit 1, air inlet pipe 2, horn-like body 3, fixed mount 4 and cutting wheel 5; Wherein the lower end of conduit 1 and air inlet pipe 2 all is higher than the lower edge of fixed mount 4 or uneven with fixed mount 4 lower edges; Air inlet pipe 2 is fixedly connected with conduit 1, and air inlet pipe 2 can be arranged on conduit 1 inside, also can be arranged on the outside of conduit 1, and present embodiment is arranged on conduit 1 inside with air inlet pipe 2, and the lower end of conduit 1 and air inlet pipe 2 concordant with the lower edge of fixed mount 4 be example.

Wherein horn-like body 3 turning sets are connected on the outside of conduit 1, and are communicated with conduit 1; Fixed mount 4 is connected on the conduit 1.

Wherein cutting wheel 5 is arranged on the fixed mount 4 through bearing, and present embodiment is an example with symmetrically arranged two cutting wheels 5.

Wherein air inlet pipe 2 bottoms can be set to yi word pattern or cross, and present embodiment is that the air inlet pipe 2 of yi word pattern is an example with the bottom, and air inlet pipe 2 outer walls are provided with baffle plate 9, and baffle plate 9 is cross with air inlet pipe 2, like Fig. 2, shown in Figure 3; The corresponding cutting wheel 5 of the outlet of air inlet pipe 2 is provided with the escape pipe 6 that cutting wheel 5 was oppositely gone out and pointed to the air-flow that is used for making air inlet pipe 2; Each cutting wheel 5 correspondence at least is provided with an escape pipe 6; Like Fig. 2, shown in Figure 4, it is example that present embodiment is provided with two escape pipes 6 that are V-shape with an air inlet pipe 2.

The pneumatic slotting drill bit of the utility model improvement, as shown in Figure 1, it also comprises and helps slag-draining device, is arranged on motor or air motor in the central through hole of fixed mount 4 positions of bearings; Wherein help slag-draining device to comprise high pressure gas pipeline 7 and be connected the nozzle 8 on the high pressure gas pipeline 7, it is inboard that nozzle 8 is fixed on horn-like body 3 belows, and outlet upwards is provided with, and it is example that present embodiment helps slag-draining device and air motor with symmetrically arranged two.

When using the utility model to slot operation, easer over need not can directly carry out fluting work to rock mass, and gas is sent into through air inlet pipe 2; From escape pipe 6, go out, act on cutting wheel 5, make its cutting rock of starting working; The air-flow of going out simultaneously gets into air motor, and energy is further absorbed conversion, and cutting wheel 5 is started fast; Improved capacity usage ratio, the native slag under the cutting is collected with horn-like body 3 by conduit 1 with cutting wheel 5 and is discharged, and the high pressure gas pipeline 7 in the slag-draining device that helps that is provided with is simultaneously carried pressure-air; And, act on native slag by nozzle 8 ejections, quicken deslagging and improved deslagging ability; The air inlet pipe 2 outer dividing plates 9 that are provided with can together be cut apart the space in the conduit with air inlet pipe 2, and sealing relatively, have also improved the effect that native slag is carried, and have reduced the loss of wind-force.Because the lower end of conduit 1 and air inlet pipe 2 is concordant with the lower edge of fixed mount 4, so can not hinder during operation, simultaneously because of conduit 1 and air inlet pipe 2; The end of conduit 1 has saved dividing plate and the sediment deposit storehouse in original publication, has improved globality, when then making the drill bit operation; By cutting wheel 5 direct and rock mass effects, need not to excavate easer, reduced construction sequence; Accelerated speed of application greatly; Improved the efficient of construction, do not relied on easer during the drill bit operation that makes simultaneously, compliance is improved; And simple in structure, processing and fabricating and maintenance cost have also obtained reduction.

Claims

1. the pneumatic slotting drill bit of improvement comprises conduit, the air inlet pipe that is fixedly connected with conduit, and turning set is connected on the outside horn-like body of conduit, is connected supravasal fixed mount, is arranged on the cutting wheel on the fixed mount through bearing; It is characterized in that:

2. the pneumatic slotting drill bit of improvement as claimed in claim 1 is characterized in that, described horn-like body is provided with several and helps slag-draining device, helps slag-draining device to comprise high pressure gas pipeline and is connected the nozzle on the high pressure gas pipeline.

3. the pneumatic slotting drill bit of improvement as claimed in claim 2 is characterized in that, it is inboard that described nozzle is fixed on horn-like body below, and its outlet upwards is provided with.

4. according to claim 1 or claim 2 the pneumatic slotting drill bit of improvement is characterized in that be provided with motor or air motor in the central through hole of described fixed mount position of bearings, cutting wheel is fixed on the output shaft of motor or air motor.