CN104001961B

CN104001961B - Drill unit

Info

Publication number: CN104001961B
Application number: CN201410229751.0A
Authority: CN
Inventors: 李菲; 章光; 田好敏; 马斌; 董镇综; 喜英; 吴浩彦; 曾飞
Original assignee: Wuhan University of Technology WUT
Current assignee: Wuhan University of Technology WUT
Priority date: 2014-05-27
Filing date: 2014-05-27
Publication date: 2016-02-17
Anticipated expiration: 2034-05-27
Also published as: CN105328232A; CN105215415A; CN105234454A; CN105269017A; CN105215414A; CN104001961A

Abstract

The invention belongs to drill bit field, cannot bore the deficiency of multiple spacing compared with aperture to overcome prior art, the present invention proposes a kind of drill unit simultaneously, and this drill unit can be holed with Small Distance simultaneously.The present invention is in order to realize goal of the invention, the technical scheme taked is such: drill unit, comprise housing, it is characterized in that: have flow-in hole, flow-out hole, plural dead axle lid is fixedly connected with at the upper surface of enclosure interior, below dead axle lid, also correspondence is provided with dead axle seat, and dead axle seat is fixedly connected on the lower surface of enclosure interior, also comprise plural drill bit, the top of drill bit embeds dead axle lid, and bit rotational axis and dead axle lid, the determined axis of both dead axle seat is same axis, the cutting portion of drill bit passes dead axle seat and is positioned at the outside of housing, drill bit is also fixedly connected with blade, the position of blade is in enclosure interior, and the position of blade is between dead axle lid and dead axle seat.The present invention has the simple advantage of structure.

Description

Drill unit

Technical field

The invention belongs to drill bit field, especially can the drill bit field that simultaneously works of multiple drill bit.

Background technology

Such Drilling operation can be run in prior art unavoidably require: need to bore multiple hole toward material to be processed, and these pitchs of holes are smaller.Such processing request, if process with an electric drill, will the brill in hole one by one, bother very much.Why not a lot of electric drill simply can be bundled into and then bore together simultaneously? because the spacing of this some holes is smaller, and the retaining part volume of electric drill is larger, even if multiple electric drill is simply bundled into together, the spacing of boring is still too large, cannot meet the Drilling operation requirement that spacing is less.

Bore the hole that multiple spacing is less, it is widely used, may be used for food processing, part processing, automobile processing, plastic processing, circuit board is processed, denomination of invention of the present invention also can change to: for the drill unit of processing food, or: for the drill unit of processing equipment parts, or: for the drill unit of automobile making, or: for the drill unit of processing plastic, or: for the drill unit etc. of processing circuit board.

Summary of the invention

Cannot bore the deficiency of multiple spacing compared with aperture to overcome prior art, the present invention proposes a kind of drill unit, and this drill unit can bore multiple hole simultaneously, and can hole with Small Distance simultaneously.

The present invention is in order to realize goal of the invention, and the technical scheme taked is such:

1, drill unit, comprises housing 1, it is characterized in that: housing 1 has flow-in hole 41 and flow-out hole 42, be fixedly connected with plural dead axle lid 21 at the upper surface of housing 1 inside, below dead axle lid 21, also correspondence is provided with dead axle seat 22, and dead axle seat 22 is fixedly connected on the lower surface of housing 1 inside

Also comprise plural drill bit 31, the top of drill bit 31 embeds dead axle lid 21, and drill bit 31 rotation and dead axle lid 21, the determined axis of both dead axle seat 22 are same axis, the cutting portion of drill bit 31 passes dead axle seat 22 and is positioned at the outside of housing 1, drill bit 31 is also fixedly connected with blade 3, the position of blade 3 is inner at housing 1, and the position of blade 3 is between dead axle lid 21 and dead axle seat 22.

2, the quantity of described dead axle lid 21, dead axle seat 22, drill bit 31 is more than three.

3, described housing 1 is formed by connecting by upper shell 11 and lower house 12, and the connected mode of upper shell 11 and lower house 12 removably connects.

4, described blade 3 is fixedly connected on drill bit 31 by multiple rectangular flat and forms, and rectangular flat place plane and drill bit 31 periphery tangent.

5, the present invention also comprises the shielding plate 23 for blocking blade 3, and the cross section of shielding plate 23 is circular arc, and it is peripheral that shielding plate 23 is positioned at blade 3, and shielding plate 23 is connected to the lower surface of housing 1 inside.

6, the present invention also comprises blocking dead axle seat 22, stopper 13 for stoping housing 1 to leak gas.

7, drill bit 31 of the present invention is also provided with annular groove 41, also comprise the driving-belt 4 being sheathed on groove 41, and groove 41 is between dead axle lid 21 and blade 3.

8, the present invention also comprises push rod 42, and push rod is between dead axle lid 21 and dead axle seat 22, and push rod 42 is provided with annular groove 41.

9, the present invention also comprises the auxiliary shell 5 be arranged on above housing 1, auxiliary shell 5 is fixedly connected with housing 1, and auxiliary shell 5 is provided with the second flow-in hole 52 and the second flow-out hole 53, also comprise: auxiliary shell 5 inside is provided with rotating rotation reinforcement bar 51, rotate reinforcement bar 51 and be provided with blade and annular groove, and blade is positioned at auxiliary shell 5 inside, rotate reinforcement bar 51 pass housing 1 and extend to housing 1 inside, until the annular groove rotating reinforcement bar 51 contacts with the driving-belt 4 in housing 1.

10, described rotation reinforcement bar 51 quantity is two or more.

11, the present invention can also be such: also comprise: motor 61, support 6 for fixed motor, motor 61 is positioned at above housing 1, and motor 61 is fixedly connected with support 6, support 6 is above housing 1, and support 6 is fixedly connected with housing 1, and the axle of motor 61 is provided with annular groove, the axle of motor 61 extends to housing 1 inside, until the annular groove of motor 61 contacts with driving-belt 4.

12, further: the quantity of motor 61 is two or more.

13, also comprise for control motor 61 rotating speed controller 7.

14, shielding plate 23 and housing 1 are for removably connecting, and shielding plate 23 is provided with multiple projection 231, and housing 1 inner surface is provided with multiple for engagement protrusion 231 and the cramping body 232 that projection can be allowed to embed, and cramping body 232 is peripheral at blade 3 with circular distribution.

15, shielding plate 23 is also provided with multiple hole 233.The area in hole is 0.5 square millimeter------0.8 square millimeter.

16, the shape in hole 233 is rectangle, and the length in hole 233 is 1mm----1.2mm, and wide is 0.5mm----0.6mm.

17, hole 233 spacing is in the horizontal direction 2mm----4mm.

The present invention can combinationally use the technical scheme that foregoing invention content is stated in the reasonable scope.

Structure of the present invention is simple, and be convenient to bore multiple closely spaced hole, for increasing work efficiency, improving, crudy is useful simultaneously.

Accompanying drawing explanation

Fig. 1 is the structural representation of embodiment 1.

Fig. 2 is the structural representation of embodiment 2.

Fig. 3 is the partial structurtes schematic diagram of embodiment 3.

Fig. 4 is the structural representation of embodiment 4.

Fig. 5 is the structural representation of embodiment 5.

Fig. 6 is the structural representation of embodiment 6.

Fig. 7 is the structural representation of embodiment 7.

Fig. 8 is the structural representation of embodiment 7.

Fig. 9 is the structural representation of embodiment 7.

Figure 10 is the structural representation of embodiment 8.

Figure 11 is the structural representation of embodiment 8.

Figure 12 is the structural representation of embodiment 8.

Figure 13 is the structural representation of embodiment 9.

Figure 14 is the structural representation of embodiment 10.

Figure 15 is the structural representation of embodiment 11.

Figure 16 is the structural representation of embodiment 12.

Figure 17 is the structural representation of embodiment 13.

Figure 18 is the structural representation of embodiment 14.

Figure 19 is the partial structurtes schematic diagram of embodiment 14.

Figure 20 is the partial structurtes schematic diagram of embodiment 14.

Figure 21 is the partial structurtes schematic diagram of embodiment 14.

Figure 22 is the structural representation of embodiment 15.

Figure 23 is the structural representation of embodiment 16.

In figure: 1-housing, 21-dead axle lid, 22-dead axle seat, 3-blade, 31-drill bit, 41-flow-in hole, 42-flow-out hole, 4-driving-belt, 42-push rod, 5-assists shell, and 51-rotates reinforcement bar, 52-second flow-in hole, 53-second flow-out hole, 6-support, 61-motor, 7-controller, 23-shielding plate, 231-projection, 232-cramping body, 11-upper shell, 12-lower house, 233-hole, 13-stopper, 41-groove.

Detailed description of the invention

For simplicity, orientation of the present invention (as upper and lower) all to refer in figure the orientation stated.The upper part of drill bit 31 does not have drilling blade, and the lower part of drill bit 31 has drilling blade.

Embodiment 1.

Fig. 1 is the structural representation of embodiment 1.

Drill unit, comprises housing 1, it is characterized in that: housing 1 has flow-in hole 41 and flow-out hole 42, plural dead axle lid 21 is fixedly connected with at the upper surface of housing 1 inside, also to there being dead axle seat 22 below dead axle lid 21, and dead axle seat 22 is fixedly connected on the lower surface of housing 1 inside

By flow-in hole 41 inflow gas or liquid, also can the mixture of influent and solid, impact blade 3, cause blade 3 to rotate, thus drive drill bit 31 to rotate.Various equivalent modifications should be known, and the material of inflow flows out from flow-out hole 42.The top of drill bit 31: the namely upper part of drill bit 31, also refers to drill bit 31 that one end without drilling blade.

Various equivalent modifications should be known, and for increasing work efficiency, the material of inflow should have larger flow velocity.

Various equivalent modifications should be known, drill bit 31 and dead axle seat 22 should have good air-tightness, should have the device of restriction drill bit along axial sliding movement between blade 3 and dead axle seat 22, otherwise, blade 3 rotates and will rub with dead axle seat 22, causes blade 3 to damage.Such technology belongs to prior art.

Embodiment 2.

Fig. 2 is the structural representation of embodiment 2.The quantity of described dead axle lid 21, dead axle seat 22, drill bit 31 is more than three.So just can simultaneously multiple bit operation, and drill bit spacing can be allowed less.

Various equivalent modifications should be known, the position of drill bit 31 of can arranging according to processing request.Such as certain shape of the pattern of wants, is just arranged into corresponding shape drill bit 31.

Embodiment 3.

Fig. 3 is the partial structurtes schematic diagram of embodiment 3.Described housing 1 is formed by connecting by upper shell 11 and lower house 12, and the connected mode of upper shell 11 and lower house 12 removably connects.

Various equivalent modifications should be known and can connect upper shell 11 and lower house 12 with screw rod.Inventive shell 1 for dismountable reason is: be convenient to dismounting, install drill bit.

Embodiment 4.

Fig. 4 is the structural representation of embodiment 4, is top view.Described blade 3 is fixedly connected on drill bit 31 by multiple rectangular flat and forms, and rectangular flat place plane and drill bit 31 periphery tangent.The benefit of such design is: 1, when blade 3 rotates, can have less resistance.2, easily determine the direction rotated: the aspect effect working (machining) efficiency of bit and quality, with the blade 3 described in embodiment 4, can realize the direction of rotation determined.

Embodiment 5.

Fig. 5 is the structural representation of embodiment 5, is top view.The present invention also comprises the shielding plate 23 for blocking blade 3, and the cross section of shielding plate 23 is circular arc, and it is peripheral that shielding plate 23 is positioned at blade 3.

The technique effect of such design is: blade 3 is when rotating, and a part is subject to stream material and impacts the power applied, and another part back rotates, and is subject to resistance.For reduce rotate time resistance and shielding plate is set.In the place not having shielding plate 23 to block, have stream material to blow blade, have the position that shielding plate 23 blocks, the impact that stream material causes blade 3 is little.

Various equivalent modifications should be known: in order to determine blade 3 direction of rotation, shielding plate 23 should not go to block blade by power section.

Embodiment 6.

Fig. 6 is the structural representation of embodiment 6.The present invention also comprises blocking dead axle seat 22, stopper 13 for stoping housing 1 to leak gas.

Use drill unit of the present invention, because boring demand, sometimes all drill bits 31 are not needed all to be installed to housing 1, at this time, dead axle seat 22 will be leaked gas (because dead axle seat 22 has the individual hole for allowing drill bit pass), in order to the boring needs allowing drill unit of the present invention can adapt to various shape, at least one stopper can be equipped with.That is: the present invention also comprises at least one blocking dead axle seat 22, stopper 13 for stoping housing 1 to leak gas.Various equivalent modifications should be known in order to air-tightness should adopt suitable material (such as rubber) to make stopper 13.

Embodiment 7.

Fig. 7 is the structural representation of embodiment 7.There is a problem in the drill unit described in embodiment 1-6: because stream material completely evenly cannot apply strength in housing, so, the rotating speed of each drill bit may be different, rotating speed is different, cause two problems: 1, during hand-held drill unit of the present invention, boring direction easily warps tiltedly, easily causes broken drill.This problem can draw an analogy to explain: suppose stool to be put in the different plane of soft or hard degree, stool is easily crooked.When drilling processing, also there is similar problem.2, no matter be hand-held or machine clamp, there is such deficiency: whole efficiency declines, suppose that some bits are very fast, so, this drill bit, many times in the duty of idle running, makes the stream material consumed energy in housing 1 like this.How to solve this problem? can design like this: drill bit 31 of the present invention is also provided with annular groove 41, also comprise the driving-belt 4 being sheathed on groove 41, and groove 41 be between dead axle lid 21 and blade 3.

Because there is driving-belt 4, so each drill bit 31 reaches identical rotating speed.

For the position of clearer explanation driving-belt 4, can see Fig. 8 and Fig. 9.Fig. 9 is top view, for representing being in transmission connection of driving-belt 4 and annular groove.

Embodiment 8.

Figure 10 is the structural representation of embodiment 8, is top view.The driving-belt connected mode that a kind of connected mode that what Figure 10 showed is is not good enough: driving-belt 4 needs and groove 41 have enough large contact area, in three grooves that Figure 10 shows, obviously, two grooves 41 and driving-belt 4 is had to have larger contact area, a groove 41 and driving-belt is also had to only have less contact area, like this, driving-belt controls the less drill bit poor effect of that contact area.How to address this problem? refer to Figure 11, Figure 11 is top view, and can add a push rod 42, the present invention also comprises push rod 42, and push rod is between dead axle lid 21 and dead axle seat 22, and push rod 42 is provided with annular groove 41.In order to the position of clear expression push rod, can also see Figure 12.Push rod 42 is for changing the shape of driving-belt 4, so that the groove 41 of driving-belt 4 energy and drill bit forms larger contact area.

Seen this description, various equivalent modifications should be known, and push rod 42 also should play the sealing function to housing 1 at dead axle seat 22 place.Push rod 42 is not drill bit, but the position of installing in housing 1 inside is the same with the position of drill bit 31: between dead axle lid 21 and dead axle seat 22.Various equivalent modifications should be known, and push rod 42 and drill bit should have good lubrication with dead axle lid 21, dead axle seat 22.

Embodiment 9.

Driving-belt 4 is installed, has caused again new problem: because volume of the present invention is little, so driving-belt 4 used is comparatively thin, and after under tension, deformation quantity is larger.When drill bit in housing is installed a fairly large number of time, just there is such problem: for example, during without driving-belt, there is one to rotate drill bit (called after a drill bit) faster, have one to rotate slower drill bit (called after b drill bit), after driving-belt 4 has been installed, a drill bit is just with larger power traction b drill bit, so driving-belt 4 is each between ab drill bit, deformation that will be once larger.Because rotate very fast, so the be stretched frequency of deformation of driving-belt 4 is very high, and driving-belt 4 easily damages, time particularly ab is apart from each other, the impaired probability of driving-belt 4 increases greatly.How to address this problem? refer to Figure 13.The present invention also comprises the auxiliary shell 5 be arranged on above housing 1, auxiliary shell 5 is fixedly connected with housing 1, and auxiliary shell 5 is provided with the second flow-in hole 52 and the second flow-out hole 53, also comprise: auxiliary shell 5 inside is provided with rotating rotation reinforcement bar 51, rotate reinforcement bar 51 and be provided with blade and annular groove, and blade is positioned at auxiliary shell 5 inside, rotates reinforcement bar 51 and pass housing 1 and extend to housing 1 inside, until the annular groove rotating reinforcement bar 51 contacts with the driving-belt 4 in housing 1.Various equivalent modifications should be known, and the auxiliary air-tightness that should be between shell 5 and housing 1 connects.

Second flow-in hole 52 inflow gas or liquid at a relatively high speed, or the mixture of liquid and solid, stream material impacts the blade rotating reinforcement bar 51, rotates reinforcement bar 51 and drives driving-belt.Rotating reinforcement bar 51, to be arranged between a drill bit described in the preceding paragraph and b drill bit be preferred version.

Alternatively: rotate reinforcement bar 51 and be arranged on without rotating drill bit faster during driving-belt and without between the slower drill bit of rotation during driving-belt.

Driving-belt 4 has had the drive of rotating reinforcement bar 51, is not easy to damage.It is better that this beneficial effect shows in a fairly large number of situation of drill bit.Although rotate reinforcement bar 51 itself can consume a little energy, generally, rotate reinforcement bar 51 and contribute to promoting boring power of the present invention.

Embodiment 10.

Figure 14 is the structural representation of embodiment 10.Described rotation reinforcement bar 51 quantity is two or more.

Embodiment 11.

Figure 15 is the structural representation of embodiment 11.Reinforcement bar 51 need not be rotated, and also can realize identical effect with motor.The present invention can also be such: also comprise: motor 61, support 6 for fixed motor, motor 61 is positioned at above housing 1, and motor 61 is fixedly connected with support 6, support 6 is above housing 1, and support 6 is fixedly connected with housing 1, and the axle of motor 61 is provided with annular groove, the axle of motor 61 extends to housing 1 inside, until the annular groove of motor 61 contacts with driving-belt 4.

Various equivalent modifications should be known, should conservative control motor speed.

Motor also contributes to promoting boring power of the present invention.Because motor can do positive work to driving-belt.

Embodiment 12.

Figure 16 is the structural representation of embodiment 12.Further: the quantity of motor 61 is two or more.

Embodiment 13.

Figure 17 is the structural representation of embodiment 13.When adopting motor 61 accessory drive band to rotate, controller is adopted to be reasonable selection.When especially multiple drill bit 31 being installed in housing 1.Controller not only can allow motor accelerate to accelerate to rotate, and motor can also be allowed slack-off, and permanent magnet direct current motor also can as energy recycle device, because permanent magnet direct current motor can generate electricity as generator.Motor is easy to control: control rotation direction, control rotating speed, energy regenerating are all prior aries.

Embodiment 14.

Sometimes, drill bit is needed to rotate in the other direction, at this time how to operate? the mouth flowing to stream material can be allowed to become the mouth of outflow; The originally mouth of outflow, becomes the mouth flow to.See Figure 18, Figure 18 is top view, when needs change bit direction, preferably can adjust the position of shielding plate 23, in figure, the shielding plate position on the left side is suitable for drill bit and rotates forward (definition: during flow-in hole inflow stream material, the direction of bit is for rotating forward, during flow-out hole inflow stream material, the direction of bit is reversion), in figure, the shielding plate position on the right is suitable for drill bit reversion.That just needs like this: shielding plate 23 and housing 1 are for removably connecting.Removably connect and conveniently can change the position of shielding plate.

How to design this detachably? see Figure 19, Figure 20, Figure 21.The present invention provides a kind of scheme: shielding plate 23 and housing 1 are for removably connecting, and shielding plate 23 is provided with multiple projection 231, housing 1 inner surface is provided with multiple for engagement protrusion 231 and the cramping body 232 that projection can be allowed to embed, and cramping body 232 is peripheral at blade 3 with circular distribution.

The shielding plate of circular arc can take off, and embeds another position from a position.Such design, when drill bit of the present invention reverses, can improve the drill bit power of reversion.

For drawing conveniently, the shielding plate that embodiment 14 draws is plane, also can be understood as and the shielding plate 23 of circular arc is deformed into the figure after plane.Accordingly, the drawing of cramping body 232 have also been made corresponding adjustment.

Embodiment 15.

Figure 22 is the structural representation of embodiment 15.Shielding plate is conducive to improving drilling power, if the unreasonable structure of shielding plate, large not to putting forward high-power effect.In order to improve drilling power further, the present invention can optimize like this: shielding plate 23 is also provided with multiple hole 233.The area in hole is 0.5 square millimeter------0.8 square millimeter.Why can improve drilling power like this? reason is that the shielding plate of atresia exists the situation of power attenuation: blade rotary speed is very large, when blade enters the scope that shielding plate surrounds, stream material is served to the effect of compression; Time blade goes out shielding plate, throw away stream material, and then compression stream material around.Such compression is consumed power, and can cause the deficiency that caloric value is large.The shielding plate arranging porose 233 can reduce the power of compression loss.

The shielding plate 23 arranging porose 233 can improve drilling power further.But the size in hole 233 (referring to size) is suitable, Kong Tai little, be not enough to improve power, Kong Tai great, drilling power can decline on the contrary.

Embodiment 16.

Figure 23 is the structural representation of embodiment 16.The shielding plate of atresia 233 improves except not sufficiently high being not enough to except causing power, also causes the deficiency that noise is large.This is because compression flow material can cause the vibration of stream material, thus form sound wave, this sound wave is noise.Utilize the principle of interference of sound wave, and consider Doppler effect, shape, size, the spacing of reasonable providing holes 233, the main frequency noise under routine operation can be effectively reduced.The shape in hole 233 is rectangle, and the length in hole 233 is 1mm----1.2mm, and wide is 0.5mm----0.6mm.Hole 233 spacing is in the horizontal direction 2mm----4mm is preferred version.

The present invention is that drilling field provides a kind of new technical scheme, has the simple advantage of structure.

Claims

1. drill unit, comprise housing, it is characterized in that: housing has flow-in hole and flow-out hole, plural dead axle lid is fixedly connected with at the upper surface of enclosure interior, below dead axle lid, also correspondence is provided with dead axle seat, and dead axle seat is fixedly connected on the lower surface of enclosure interior, also comprise plural drill bit, the top of drill bit embeds dead axle lid, and bit rotational axis and dead axle lid, the determined axis of both dead axle seat is same axis, the cutting portion of drill bit passes dead axle seat and is positioned at the outside of housing, drill bit is also fixedly connected with blade, the position of blade is in enclosure interior, and the position of blade is between dead axle lid and dead axle seat.