CN104923823B - Portable pulse hand drill - Google Patents
Portable pulse hand drill Download PDFInfo
- Publication number
- CN104923823B CN104923823B CN201510232753.XA CN201510232753A CN104923823B CN 104923823 B CN104923823 B CN 104923823B CN 201510232753 A CN201510232753 A CN 201510232753A CN 104923823 B CN104923823 B CN 104923823B
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- Prior art keywords
- rotating shaft
- support
- bevel gear
- drive disk
- clutch
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- 238000000151 deposition Methods 0.000 claims abstract description 11
- 238000003860 storage Methods 0.000 claims description 26
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 23
- 230000000903 blocking effect Effects 0.000 claims description 6
- 210000001367 artery Anatomy 0.000 claims description 2
- 210000003462 vein Anatomy 0.000 claims description 2
- 230000008859 change Effects 0.000 abstract description 5
- 238000003754 machining Methods 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000011105 stabilization Methods 0.000 abstract 1
- 238000005553 drilling Methods 0.000 description 33
- 238000013519 translation Methods 0.000 description 31
- 210000000515 tooth Anatomy 0.000 description 22
- 238000000034 method Methods 0.000 description 14
- 210000003205 muscle Anatomy 0.000 description 11
- 239000000498 cooling water Substances 0.000 description 10
- 230000008569 process Effects 0.000 description 8
- 230000009471 action Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 4
- 241001074085 Scophthalmus aquosus Species 0.000 description 3
- 230000006835 compression Effects 0.000 description 3
- 238000007906 compression Methods 0.000 description 3
- 230000005055 memory storage Effects 0.000 description 3
- 238000005452 bending Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B45/00—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor
- B23B45/06—Hand-held or like portable drilling machines, e.g. drill guns; Equipment therefor driven by man-power
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/02—Driving main working members
- B23Q5/04—Driving main working members rotary shafts, e.g. working-spindles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q5/00—Driving or feeding mechanisms; Control arrangements therefor
- B23Q5/22—Feeding members carrying tools or work
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Drilling And Boring (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
Abstract
The present invention relates to a kind of machining tool, more particularly, to a kind of Portable pulse hand drill.The Portable pulse hand drill, including support, main shaft is rotatably connected on support, driving bevel gear is arranged with main shaft, drive disk is provided with support, drive disk is connected by rotating shaft with holder pivots, the axis of the axis vertical major of drive disk, the edge of drive disk is provided with sliding tooth, and sliding tooth is meshed with bevel gear；Clutch is provided with described rotating shaft, reversing device is provided between rotating shaft and driving bevel gear, support is provided with one section of pulse projection on the end face of driving bevel gear, driving bevel gear is provided with pulse projection on the end face of support, side face is provided with the holding tank for depositing drill bit, and flexible lidstock arm is provided with two side walls of holding tank.The present invention is with the reversion withdrawing that can realize pulse frequency and need not change the beneficial effects such as hand direction, the hand velocity-stabilization of guarantee.
Description
Technical field
The present invention relates to a kind of machining tool, more particularly, to a kind of Portable pulse hand drill.
Background technology
The existing hand drilling tool of a class, by shaking drive disk, is rotated using the sliding tooth on drive disk come drive shaft,
And then drive bit to realize drilling.Scrap, scrap is produced easily to block drill bit, it is necessary to invert drill bit in boring procedure
Withdrawing outside scrap tap, will be further continued for drilling.But this kind of hand drilling tool, can only when needing drill bit to invert withdrawing, chip removal
Drill bit is realized by reversely shake drive disk to invert.I.e. drive disk needs to turn clockwise several circles to drill, then during another mistake
Pin reversion a few circles withdrawing chip removal, then the drilling that turns clockwise.Need to convert repeatedly the steering of drive disk in boring procedure, and it is hand
The driving force of brill derives from human arm muscle, and the hand direction of frequent changes causes arm muscles different with joint force direction,
Easily cause hand drill deflection.And the hand action of frequent changes, muscle is formed muscle memory, cause hand to shake speed
It is unstable, influence drilling quality and efficiency.
As Chinese patent notification number is：CN2357687Y, in a kind of staight shank hand drill of the bulletin of on January 12nd, 2000, should
Hand drill includes drill body, hollow rotating shaft, rotating disk and drillstock, and its drillstock is located at the afterbody of drill body, and drillstock is longitudinal same with drill body
On one straight line.The hand drill is rotated by turntable rotation band dynamic bevel gear, and bevel gear drives coaxial drill body rotation, this kind of hand
Drilling tool can only realize drill bit and invert when needing drill bit to invert withdrawing, chip removal by reversely shake drive disk.I.e. drive disk is needed
Several circles are turned clockwise to drill, then a few circles of another mistake hour hands reversion withdrawing chip removal, then the drilling that turns clockwise.Boring procedure
The middle steering for needing to convert drive disk repeatedly, and the driving force of hand drill derives from human arm muscle, the hand side of frequent changes
To, cause arm muscles different with joint force direction, easily cause hand drill deflection.And the hand action of frequent changes, make
Muscle cannot form muscle memory, cause hand speed of shaking unstable, influence drilling quality and efficiency.
The content of the invention
The present invention is primarily directed to above mentioned problem, there is provided a kind of reversion withdrawing that can realize pulse frequency and need not
Change hand direction and action, ensure that hand speed is basicly stable, improve the Portable pulse hand drill of drilling quality and efficiency.
The purpose of the present invention is mainly what is be achieved by following proposal：A kind of Portable pulse hand drill, including branch
Frame, is rotatably connected to main shaft on support, driving bevel gear is arranged with main shaft, and drive disk is provided with support, and drive disk passes through
Rotating shaft is connected with holder pivots, and the axis of the axis vertical major of drive disk, the edge of drive disk is provided with sliding tooth, sliding tooth
It is meshed with bevel gear；Clutch is provided with described rotating shaft, reversing device is provided between rotating shaft and driving bevel gear,
Clutch includes the fixed disk being arranged on support and the clutch discs being set in rotating shaft, end face of the fixed disk near clutch discs
On be provided with one section of clutch projection, clutch discs and rotating shaft eccentric setting, rotating shaft are provided with back-moving spring away from one end of support；Instead
Rotation mechanism include it is co-axially fixed with driving bevel gear reversion bevel gear with reversion bevel gear engage adjustment gear, be set in
Counter drive gear in rotating shaft, the axis for adjusting gear is vertical with reversion bevel gear axis, and adjustment gear connects with holder pivots
Connect, the vertical range being driven reverse between plane where tooth and plane where adjustment gear is highly identical with clutch projection；It is main
Axle is in axial sliding connection with support, and support is provided with one section of pulse projection, driving bevel gear on the end face of driving bevel gear
Pulse projection, pulse projection and driving bevel gear eccentric setting are provided with the end face of support, driving bevel gear is away from brill
One end of head is provided with preloading spring, and described side face is provided with the holding tank for depositing drill bit, two of holding tank
Flexible lidstock arm is provided with the wall of side, two flexible lidstock arms have intersection, flexible lidstock in the midline of holding tank
Arm is in the arc of outwardly convex.Clutch discs and rotating shaft eccentric setting, when drive disk turns clockwise, rotating shaft follows drive disk to drive
Clutch disc spins, when clutch discs fit rotation with the end face of fixed disk, drive the sliding tooth of plate edge to be nibbled with driving bevel gear
Close, driving bevel gear rotation is driven when drive disk is rotated, driving bevel gear drives main shaft rotation, and main shaft drives bit, real
Now drill.When the clutch in clutch disc spins to fixed disk is raised, clutch is raised to be supported to clutch discs, clutch discs is axially moved
Dynamic, clutch discs drive rotating shaft and drive disk axial translation and compression reseting spring, and now, the sliding tooth on drive disk is bored with driving
Gear departs from.With the translation of rotating shaft, the counter drive gear translation in rotating shaft, the plane where counter drive gear are driven
Raised with the vertical range between plane where adjustment gear and clutch is highly identical, therefore, the reverse drive tooth after translation
Wheel with rotated on support be connected adjustment gear engagement.When drive disk is rotated further, rotating shaft rotarily drives reverse drive tooth
Wheel rotation, counter drive gear drives adjustment gear to rotate, adjustment gear driven reversion bevel gear rotation, reversion bevel gear drive
Bit on main shaft and main shaft.Due to being connected by adjusting gear between reversion bevel gear and counter drive gear, because
This, main shaft is kept when being rotated clockwise, the steering of main shaft from it is different before, realize the reversion of drill bit, drill bit Umklapp process
In, scrap is exited, and is easy to continue to drill, and prevents scrap from blocking drill bit.When clutch disc spins are after clutch is raised, back-moving spring
Drive disk, rotating shaft, counter drive gear, clutch discs are promoted to reset, now, counter drive gear departs from adjustment gear, drives
Sliding tooth on disk is engaged again with driving bevel gear, realizes drilling.Drive disk is driven in the whole rotary course of rotating shaft, is passed through
Clutch and the cooperation of reversing device, realize that the steering of drive disk remains constant, without reversion manually, it becomes possible to realize
The reversion withdrawing of the pulse frequency of drill bit, bits are moved back, due to without change hand direction and action repeatedly, therefore easily form flesh
Meat is remembered, and the rotating speed of manual rotation drive disk can be held essentially constant, and improves drilling quality and speed.Main shaft and support axial direction
Be slidably connected, i.e., main shaft can on support axial translation.Due to pulse projection and driving bevel gear eccentric setting, when pulse is convex
When block is fitted and rotated with support near the end face of driving bevel gear, the rotation of main shaft drives drill bit to realize drilling.When pulse is convex
Block is rotated when in the pulse projection to support, pulse projection driving pulse projection axial translation, the axial translation of pulse projection
Drive main shaft and drill bit axial translation and compress preloading spring, now, drill bit is directed away from the direction translation of workpiece, realizes boring
The withdrawing of head, drives outside scrap tap during withdrawing, it is to avoid scrap blocks drill bit.When the rotation of pulse projection is convex through extra pulse
After rising, preloading spring promotes main shaft to be translated towards workpiece direction, and the translation driving pulse projection of main shaft is towards bracket end face direction
Translation, and drill bit impact workpiece is promoted, impulsive force is realized to processing workpiece, reduce the toughness in bottom hole face, and impact process
In bottom hole face formed a small rut, small rut can to bit point of the drill be oriented to and position, be always ensured that drill bit axially deeply.
During the entire process of main shaft rotation, bit can be realized, and realize drill bit withdrawing and impact, it is real during bit
The reciprocal axial translation of existing pulse frequency, makes boring procedure more succinct laborsaving.Side face is provided with for depositing drill bit
Holding tank, can deposit drill bit in holding tank, be easy to the carrying of whole instrument.Flexibility is provided with two side walls of holding tank
Capper arm, the opening of holding tank is blocked using flexible lidstock arm, it is to avoid drill bit is dropped from holding tank, lost.Two flexible envelopes
Lid arm has intersection in the midline of holding tank, and drill bit needs could be calm by two intersections of flexible lidstock arm
Receive and spin off in groove, two intersections of flexible lidstock arm can be supported mutually, enhancing to the shut-off capacity of holding tank, and
And flexible lidstock arm is in the arc of outwardly convex, mutually supported by producing radian after bending between two flexible lidstock arms, bored
Head needs to resist the power that flexible lidstock brachiocylloosis produces could be departed from from two coincidence part offices of flexible lidstock arm.
Preferably, it is in circular arc that described clutch is raised, the raised two ends of clutch are provided with and connect with fixed side surface
The guiding surface for connecing.When clutch disc spins to clutch high spot, can be oriented to by guiding surface, be turned along guiding surface
Move to clutch projection, guiding surface can be oriented to clutch discs.
Preferably, it is in circular arc that described pulse is raised, the raised two ends of pulse are provided with and connect with the end face of support
The guiding inclined plane for connecing.When pulse projection is rotated to pulse high spot, can be oriented to by being oriented to inclined plane, along guiding
Inclined plane is turned in pulse projection, and being oriented to inclined plane can be oriented to pulse projection.
Preferably, being provided with driven wheel of differential on described support, driven shaft is set at the axle center of driven wheel of differential, from
With drive bevel gear axisymmetricly, symmetry axis is the axis of the rotating shaft of drive disk to dynamic bevel gear.Driven wheel of differential is set on support,
And the position of driven wheel of differential is with drive bevel gear axisymmetricly, and symmetry axis is the axis of drive disk, when driving disc spins
When drive driving bevel gear rotation, meanwhile, driven wheel of differential can be supported to drive disk, make drive disk all the time in a plane
Rotation, it is to avoid drive disk is inclined.
Preferably, described support includes two symmetrically arranged hack levers, two symmetry axis of hack lever are the axle of main shaft
Line, one end of two hack levers is provided with main shaft sleeve, and the other end of two hack levers is provided with driven shaft axle sleeve, in two hack levers
Portion is connected with rotating shaft axle sleeve.When drilling tool is used, when applying pressure to support, because two symmetry axis of support are main shaft
Axis, pressure can be delivered on main shaft and drill bit along support, improve stability when drilling tool is used, and two right
Claiming the hack lever for setting can improve structural strength, reduce drilling tool weight.One end of two hack levers is provided with main shaft sleeve, two framves
The other end of bar is provided with driven shaft axle sleeve, and the integral middle of two hack levers is connected with rotating shaft axle sleeve, is rotated by main shaft sleeve
Connection main shaft, connection driven shaft is rotated by driven shaft sleeve, it is ensured that when drilling tool is used external force all the time can transfers to main shaft
On driven shaft.
Preferably, being threaded with handle on described support, handle is coaxially disposed with drive disk.Screw thread connects on support
Handle is connected to, handle is coaxially disposed with drive disk, during a hand dynamic drive disk, it is fixed to support that another hand can hold handle
Position, it is to avoid bit inclination.
Preferably, handle is internally provided with water storage cavity near one end of support, handle is provided near one end of support
Weeper, support is provided with the water shutoff projection for blocking weeper near one end of handle, and filling port is provided with handle.
Hand is internally provided with water storage cavity near one end of support, water storage cavity memory storage cooling water, after handle is disassembled from support,
Cooling water can flow out from weeper and drill bit is cooled down.Cooling water can be supplemented to water storage cavity by the filling port on handle.
When handle is threaded on support, the water shutoff projection on support can be blocked to weeper, it is to avoid cooling leaked water.
Preferably, handle is internally provided with the storage chamber for depositing grinding wheel away from one end of support, handle away from
One end end of support is provided with the end cap for covering storage chamber, and end cap is threadedly coupled with handle.Handle away from support one
End is internally provided with the storage chamber for depositing grinding wheel, can deposit standby in storage chamber of the handle away from support one end
Grinding wheel, improves the utilization rate of handle.Storage chamber can be covered by end cap, and end cap is threadedly coupled with handle, be easy to end cap
Opening, that is, be easy to the access of grinding wheel.
Preferably, drive disk is provided with rocking arm, rocking arm middle part and driving side surface bolt connection away from one end of support,
The free end vertical rocker-arm of rocking arm is provided with rocking handle.During shake rocking handle, rocking handle band motion rocker arm rotates, and rocking arm drives driving to spiral
Turn, realize hand-operated drilling.
Preferably, rocking arm is provided with rotating shaft mounting hole and rotating shaft buckling groove, rotating shaft peace near the one end in drive disk axle center
The diameter with diameter greater than rotating shaft in hole is filled, the width of rotating shaft buckling groove is engaged with shaft diameter, rotating shaft mounting hole and rotating shaft card
Access slot is connected.Install rocking arm when, by rotating shaft be aligned rocking arm on rotating shaft mounting hole, due to rotating shaft mounting hole with diameter greater than turn
The diameter of axle, is easy to rotating shaft to insert in rotating shaft mounting hole, then rotating shaft is slided along rotating shaft buckling groove, due to rotating shaft buckling groove
Width is engaged with the diameter of rotating shaft, rotating shaft buckling groove can countershaft it is spacing, it is to avoid rocking arm is rocked, when rotating shaft slips into rotating shaft card
After in access slot, rocking arm bolt connection is fixed on drive disk, realizes the fixation of rocking arm.Similarly, by the disassembling bolts on rocking arm
Afterwards, rotating shaft is slided along rotating shaft buckling groove, slides into the dismounting that rocking arm can be realized when at rotating shaft mounting hole.It is easy to rocking arm
Installation and removal, and ensure rocking arm in rotary course can all the time around rotating shaft rotate
Therefore, Portable pulse hand drill of the invention possesses following advantages：1st, drive disk drives the whole rotation of rotating shaft
During, by the cooperation of clutch and reversing device, realize that the steering of drive disk remains constant, without anti-manually
Turn, it becomes possible to realize the reversion withdrawing of the pulse frequency of drill bit, move back bits, due to need not repeatedly change hand direction and action,
Therefore muscle memory is easily formed, the rotating speed of manual rotation drive disk can be held essentially constant, improves drilling quality and speed；
2nd, due to pulse projection and driving bevel gear eccentric setting, the end face when pulse projection with support near driving bevel gear is fitted simultaneously
During rotation, the rotation of main shaft drives drill bit to realize drilling, and when pulse projection is rotated in the pulse projection to support, pulse is convex
Driving pulse projection axial translation is played, the axial translation of pulse projection drives main shaft and drill bit axial translation and compresses pretension bullet
Spring, now, drill bit is directed away from the direction translation of workpiece, realizes the withdrawing of drill bit, is driven outside scrap tap during withdrawing,
Scrap is avoided to block drill bit；The 3rd, driven shaft is set at the axle center of driven wheel of differential, sanding burr wheel is fixedly connected with driven shaft,
After boring procedure terminates, whole instrument can in turn be used, rotation driving disk, drive disk drives driven wheel of differential rotation
Turn, driven wheel of differential drives driven shaft to rotate, driven shaft drives the rotation of sanding burr wheel, drilling of being polished using sanding burr wheel
The burr for producing afterwards, when sanding burr wheel need not be used, will be threaded on support to shoulder bar, now, sanding burr
Wheel enters in the accommodating cavity of shoulder bar, and shoulder can be propped up to shoulder bar, and support is positioned using shoulder, avoids support to incline during drilling
Tiltedly；4th, handle is internally provided with water storage cavity, water storage cavity memory storage cooling water, when handle is dismantled from support near one end of support
After getting off, cooling water can flow out from weeper and drill bit is cooled down, and water storage cavity can be supplemented by the filling port on handle
Cooling water, when handle is threaded on support, the water shutoff projection on support can be blocked to weeper, it is to avoid outside cooling water
Let out；When rocking arm the 5th, being installed, rotating shaft is directed at the rotating shaft mounting hole on rocking arm, it is straight with diameter greater than rotating shaft due to rotating shaft mounting hole
Footpath, be easy to rotating shaft insert rotating shaft mounting hole in, then by rotating shaft along rotating shaft buckling groove slide, due to rotating shaft buckling groove width with
The diameter of rotating shaft is engaged, rotating shaft buckling groove can countershaft it is spacing, it is to avoid rocking arm is rocked, when rotating shaft is slipped into rotating shaft buckling groove
Afterwards, rocking arm bolt connection is fixed on drive disk, realizes the fixation of rocking arm, similarly, by the disassembling bolts on rocking arm after, will turn
Axle is slided along rotating shaft buckling groove, slides into the dismounting that rocking arm can be realized when at rotating shaft mounting hole.Be easy to rocking arm installation and
Dismounting, and ensure that rocking arm can rotate around rotating shaft all the time in rotary course.
Brief description of the drawings
Accompanying drawing 1 is a kind of structural representation of the invention；
Accompanying drawing 2 is a kind of stereogram of the invention；
Accompanying drawing 3 is partial enlarged drawing when clutch is in bore state in the present invention；
Accompanying drawing 4 is partial enlarged drawing when clutch is in withdrawing state in the present invention；
Accompanying drawing 5 is partial enlarged drawing when driving bevel gear is in bore state in the present invention；
Accompanying drawing 6 is partial enlarged drawing when driving bevel gear is in withdrawing state in the present invention；
Accompanying drawing 7 is the stereogram of fixed disk in the present invention；
Accompanying drawing 8 is the stereogram of pulse high spot in the present invention；
Accompanying drawing 9 is enlarged partial sectional view at B in accompanying drawing 1；
Accompanying drawing 10 is the stereogram of rocking arm in the present invention；
Accompanying drawing 11 is the view profile of hack lever in the present invention.
Illustrate：01- supports, 011- hack levers, 0111- holding tanks, 0112- flexible lidstock arms, 012- main shaft sleeves,
013- driven shaft axle sleeves, 014- water shutoffs are raised, 02- drive disks, 021- sliding tooths, 03- driving bevel gears, 04- driven wheels of differential,
05- main shafts, 06- drill bits, 07- handles, 071- water storage cavities, 072- weepers, 073- filling ports, 074- storage chambers, 075- end caps,
The standby grinding wheels of 076-, 08- rocking arms, 081- rotating shaft mounting holes, 082- rotating shaft buckling grooves, 09- rocking handles, 10- rotating shafts, 11- supports shoulder
Bar, 12- shoulder pads, 13- fixed disks, 131- clutches are raised, 1311- guiding surfaces, 14- clutch discs, 15- counter drive gears, 16-
Adjustment gear, 17- reversion bevel gears, 18- back-moving springs, 21- pulses are raised, and 211- is oriented to inclined plane, 22- pulse projections, 23-
Preloading spring.
Specific embodiment
Below by embodiment, and with reference to accompanying drawing, technical scheme is described in further detail.
Embodiment 1：
As shown in Figure 1, 2, 3, a kind of Portable pulse hand drill, including support 01, is rotatably connected to main shaft 05 on support,
The free end of main shaft is provided with drill bit 06, and driving bevel gear 03 is arranged with main shaft, and drive disk 02, drive disk are provided with support
It is connected with holder pivots by rotating shaft 10, the axis of the axis vertical major of drive disk, the edge of drive disk is provided with sliding tooth
021, sliding tooth is meshed with driving bevel gear.Clutch is provided with rotating shaft, is provided between rotating shaft and driving bevel gear
Reversing device.Clutch includes the fixed disk 13 being arranged on support and the clutch discs being set in rotating shaft, and fixed disk is close to
One section of clutch projection 131 is provided with the end face of clutch discs, as shown in fig. 7, it is in circular arc, the raised two ends of clutch that clutch is raised
The guiding surface 1311 being connected with fixed side surface, clutch discs 14 and rotating shaft eccentric setting are provided with, rotating shaft is away from support
One end is provided with back-moving spring 18.Reversing device includes reversion bevel gear 17 co-axially fixed with driving bevel gear and reversion cone
Adjustment gear 16, the counter drive gear 15 being set in rotating shaft of gear engagement, adjust axis and the reversion bevel gear of gear
Axis is vertical, and adjustment gear is connected with holder pivots, between plane where counter drive gear and plane where adjustment gear
Vertical range is highly identical with clutch projection.Main shaft is in axial sliding connection with support, as shown in figure 8, support is bored near driving
One section of pulse projection 21 is provided with the end face of gear, it is in circular arc that pulse is raised, and the raised two ends of pulse are provided with and branch
The guiding inclined plane 211 of the end face connection of frame.As shown in figure 5, driving bevel gear to be provided with pulse on the end face of support convex
Block 22, pulse projection and driving bevel gear eccentric setting, driving bevel gear are provided with preloading spring 23 away from one end of drill bit.Branch
Driven wheel of differential 04 is provided with frame, driven shaft is set at the axle center of driven wheel of differential, driven wheel of differential is in drive bevel gear
Axial symmetry, symmetry axis is the axis of the rotating shaft of drive disk.Support is provided with to shoulder bar 11 away from one end of drill bit, remote to shoulder bar 11
Shoulder pad 12 is installed from one end of support.Support includes two symmetrically arranged hack levers 011, and two symmetry axis of hack lever are main shaft
Axis, one end of two hack levers is provided with main shaft sleeve 012, and the other end of two hack levers is provided with driven shaft axle sleeve 013, two
The integral middle of individual hack lever is connected with rotating shaft axle sleeve.As shown in figure 11, it is provided with for depositing drill bit on the hack lever for constituting support
Holding tank 0111, flexible lidstock arm 0112 is provided with two side walls of holding tank, two flexible lidstock arms are in holding tank
Midline there is intersection, flexible lidstock arm in outwardly convex arc.Be threaded with handle 07 on support, handle with
Drive disk is coaxially disposed, as shown in figure 9, handle is internally provided with water storage cavity 071 near one end of support, handle is near support
One end is provided with weeper 072, and support is provided with the water shutoff projection 014 for blocking weeper, handle near one end of handle
On be provided with filling port 073.Handle is internally provided with the storage chamber for depositing standby grinding wheel 076 away from one end of support
074, handle is provided with the end cap 075 for covering storage chamber away from one end end of support, and end cap is threadedly coupled with handle.Drive
Moving plate is provided with rocking arm 08, rocking arm middle part and driving side surface bolt connection away from one end of support, and the free end of rocking arm is vertical
Rocking arm is provided with rocking handle 09.As shown in Figure 10, rocking arm is provided with rotating shaft mounting hole 081 and rotating shaft near the one end in drive disk axle center
Buckling groove 082, the diameter with diameter greater than rotating shaft of rotating shaft mounting hole, the width of rotating shaft buckling groove is engaged with shaft diameter, turns
Axle mounting hole is connected with rotating shaft buckling groove.
Clutch discs and rotating shaft eccentric setting, as shown in figure 4, when drive disk turns clockwise, rotating shaft follows drive disk to drive
Clutch disc spins, when clutch discs fit rotation with the end face of fixed disk, drive the sliding tooth of plate edge to be nibbled with driving bevel gear
Close, driving bevel gear rotation is driven when drive disk is rotated, driving bevel gear drives main shaft rotation, and main shaft drives bit, real
Now drill.When the clutch in clutch disc spins to fixed disk is raised, as shown in figure 4, clutch is raised supported to clutch discs, make from
Disk axial movement is closed, clutch discs drive rotating shaft and drive disk axial translation and compression reseting spring, now, the driving on drive disk
Tooth departs from driving bevel gear.With the translation of rotating shaft, the counter drive gear translation in rotating shaft is driven, due to being driven reverse tooth
Vertical range between plane where wheel and plane where adjustment gear is highly identical with clutch projection, therefore, after translation
Counter drive gear is engaged with the adjustment gear that is connected is rotated on support.When drive disk is rotated further, rotating shaft rotarily drives
Counter drive gear rotates, and counter drive gear drives adjustment gear rotation, adjustment gear driven reversion bevel gear rotation, reversion
Bevel gear drives the bit on main shaft and main shaft.Due to inverting between bevel gear and counter drive gear by adjusting tooth
Wheel connection, therefore, main shaft is kept when being rotated clockwise, the steering of main shaft from it is different before, realize the reversion of drill bit, drill bit
In Umklapp process, scrap is exited, and is easy to continue to drill, and prevents scrap from blocking drill bit.When clutch disc spins are after clutch is raised,
Back-moving spring promotes drive disk, rotating shaft, counter drive gear, clutch discs to reset, and now, counter drive gear takes off with adjustment gear
From the sliding tooth on drive disk is engaged again with driving bevel gear, realizes drilling.Drive disk drives the whole rotary course of rotating shaft
In, by the cooperation of clutch and reversing device, realize that the steering of drive disk remains constant, without inverting manually, just
The reversion withdrawing of the pulse frequency of drill bit can be realized, bits are moved back, due to without changing hand direction and action, therefore appearance repeatedly
Muscle memory is easily formed, the rotating speed of manual rotation drive disk can be held essentially constant, improve drilling quality and speed.Work as clutch
Spiral when going to clutch high spot, can be oriented to by guiding surface, turned in clutch projection along guiding surface, be oriented to
Inclined-plane can be oriented to clutch discs.Driven wheel of differential is set on support, and the position of driven wheel of differential is in axle with drive bevel gear
Symmetrically, and symmetry axis for drive disk axis, when drive disc spins when drive driving bevel gear rotation, meanwhile, from mantle tooth
Wheel can be supported to drive disk, drive disk is rotated in a plane all the time, it is to avoid drive disk is inclined.Main shaft and support axial direction
Be slidably connected, i.e., main shaft can on support axial translation.Due to pulse projection and driving bevel gear eccentric setting, when pulse is convex
When block is fitted and rotated with support near the end face of driving bevel gear, as shown in fig. 6, the rotation of main shaft drives drill bit to realize boring
Hole.When pulse projection is rotated in the pulse projection to support, pulse projection driving pulse projection axial translation, pulse projection
Axial translation drive main shaft and drill bit axial translation and compress preloading spring, now, drill bit is directed away from the direction of workpiece
Translation, realizes the withdrawing of drill bit, as shown in figure 4, being driven outside scrap tap during withdrawing, it is to avoid scrap blocks drill bit.When
After extra pulse projection, preloading spring promotes main shaft to be translated towards workpiece direction to the rotation of pulse projection, and the translation of main shaft promotes arteries and veins
Rush projection to be translated towards bracket end face direction, and promote drill bit impact workpiece, impulsive force is realized to processing workpiece, reduce bottom hole
The toughness in face, and a small rut is formed in bottom hole face in impact process, small rut can be oriented to and position to bit point of the drill,
It is always ensured that drill bit axially deeply.During the entire process of main shaft rotation, bit can be realized, and realize drill bit withdrawing and
Impact, realizes the reciprocal axial translation of pulse frequency during bit, make boring procedure more succinct laborsaving.Side face
The holding tank for depositing drill bit is provided with, drill bit can be deposited in holding tank, be easy to the carrying of whole instrument.The two of holding tank
Flexible lidstock arm is provided with individual side wall, the opening of holding tank is blocked using flexible lidstock arm, it is to avoid drill bit is from holding tank
Drop, lose.Two flexible lidstock arms have intersection in the midline of holding tank, and drill bit is needed by two flexible lidstocks
The intersection of arm could be spun off from holding tank, and two intersections of flexible lidstock arm can be supported mutually, enhancing
To the shut-off capacity of holding tank, and flexible lidstock arm is in the arc of outwardly convex, by bending between two flexible lidstock arms
Radian is produced mutually to support afterwards, drill bit needs to resist the power that flexible lidstock brachiocylloosis produces could be from two weights of flexible lidstock arm
Close and depart from part.When pulse projection is rotated to pulse high spot, can be oriented to by being oriented to inclined plane, be inclined along guiding
Inclined-plane is turned in pulse projection, and being oriented to inclined plane can be oriented to pulse projection.Driven wheel of differential is set on support, and it is driven
With drive bevel gear axisymmetricly, and symmetry axis is the axis of drive disk, is driven when disc spins are driven for the position of bevel gear
Driving bevel gear rotates, meanwhile, driven wheel of differential can be supported to drive disk, drive disk is rotated in a plane all the time,
Drive disk is avoided to incline.Driven shaft is set at the axle center of driven wheel of differential, sanding burr wheel is fixedly connected with driven shaft, work as brill
After hole process terminates, whole instrument can in turn be used, rotation driving disk, drive disk drives driven wheel of differential rotation, from
Dynamic bevel gear drives driven shaft to rotate, and driven shaft drives the rotation of sanding burr wheel, is produced after drilling of being polished using sanding burr wheel
Raw burr.When sanding burr wheel need not be used, will be threaded on support to shoulder bar, now, sanding burr wheel enters
Enter in the accommodating cavity of shoulder bar.Shoulder can be propped up to shoulder bar, support is positioned using shoulder, riding is avoided during drilling.
When drilling tool is used, when applying pressure to support, because two symmetry axis of support are the axis of main shaft, pressure can be along branch
Frame is delivered on main shaft and drill bit, improves stability when drilling tool is used, and two symmetrically arranged hack levers can be improved
Structural strength, reduces drilling tool weight.One end of two hack levers is provided with main shaft sleeve, and the other end of two hack levers is provided with driven
Axle axle sleeve, the integral middle of two hack levers is connected with rotating shaft axle sleeve, connection main shaft is rotated by main shaft sleeve, by driven shaft sleeve
Rotate connection driven shaft, it is ensured that when drilling tool is used external force all the time can transfers on main shaft and driven shaft.Screw thread on support
Handle is connected with, handle is coaxially disposed with drive disk, during a hand dynamic drive disk, another hand can hold handle to support
Positioning, it is to avoid bit inclination.Handle is internally provided with water storage cavity near one end of support, and water storage cavity memory storage cooling water works as handle
After hand is disassembled from support, cooling water can flow out from weeper and drill bit is cooled down.By the filling port energy on handle
It is enough that cooling water is supplemented to water storage cavity.When handle is threaded on support, the water shutoff projection on support can be sealed to weeper
It is stifled, it is to avoid cooling leaked water.Handle is internally provided with the storage chamber for depositing grinding wheel away from one end of support, remote in handle
Standby grinding wheel can be deposited in the storage chamber of support one end, the utilization rate of handle is improved.Storage chamber can be by end cap
Cover, end cap is threadedly coupled with handle, be easy to the opening of end cap, that is, be easy to the access of grinding wheel.During shake rocking handle, rocking handle band
Motion rocker arm rotates, and rocking arm drives and drives disc spins, realizes hand-operated drilling.When rocking arm is installed, rotating shaft is directed at the rotating shaft on rocking arm
Mounting hole, due to the diameter with diameter greater than rotating shaft of rotating shaft mounting hole, is easy to rotating shaft to insert in rotating shaft mounting hole, then by rotating shaft edge
The slip of rotating shaft buckling groove, because the width of rotating shaft buckling groove is engaged with the diameter of rotating shaft, rotating shaft buckling groove being capable of countershaft
It is spacing, it is to avoid rocking arm is rocked, after rotating shaft is slipped into rotating shaft buckling groove, rocking arm bolt connection is fixed on drive disk, realize
The fixation of rocking arm.Similarly, after by the disassembling bolts on rocking arm, rotating shaft is slided along rotating shaft buckling groove, slides into rotating shaft installation
When at hole, the dismounting of rocking arm can be realized.It is easy to the installation and removal of rocking arm, and ensures that rocking arm can begin in rotary course
Rotated around rotating shaft eventually.Clutch discs and rotating shaft eccentric setting, when drive disk turns clockwise, rotating shaft follows drive disk to drive clutch
Disc spins, when clutch discs fit rotation with the end face of fixed disk, drive the sliding tooth of plate edge to be engaged with driving bevel gear, drive
Driving bevel gear rotation is driven when Moving plate is rotated, driving bevel gear drives main shaft rotation, and main shaft drives bit, realizes boring
Hole.When the clutch in clutch disc spins to fixed disk is raised, clutch is raised to be supported to clutch discs, moves axially clutch discs,
Clutch discs drive rotating shaft and drive disk axial translation and compression reseting spring, now, sliding tooth and driving cone tooth on drive disk
Wheel departs from.With the translation of rotating shaft, drive the counter drive gear translation in rotating shaft, where counter drive gear plane with
Vertical range between plane where adjustment gear is highly identical with clutch projection, therefore, the counter drive gear after translation
Engaged with the adjustment gear that is connected is rotated on support.When drive disk is rotated further, rotating shaft rotarily drives counter drive gear
Rotation, counter drive gear drives adjustment gear rotation, and adjustment gear driven reversion bevel gear rotation, reversion bevel gear drives master
Bit on axle and main shaft.Due to being connected by adjusting gear between reversion bevel gear and counter drive gear, therefore,
Main shaft is kept when being rotated clockwise, the steering of main shaft from it is different before, realize the reversion of drill bit, in drill bit Umklapp process,
Scrap is exited, and is easy to continue to drill, and prevents scrap from blocking drill bit.When clutch disc spins are by after clutch projection, back-moving spring is pushed away
Dynamic drive disk, rotating shaft, counter drive gear, clutch discs reset, and now, counter drive gear departs from adjustment gear, drive disk
On sliding tooth engaged again with driving bevel gear, realize drilling.Drive disk drive rotating shaft whole rotary course in, by from
The cooperation of mechanism and reversing device is closed, realizes that the steering of drive disk remains constant, without reversion manually, it becomes possible to realize boring
The reversion withdrawing of the pulse frequency of head, bits are moved back, due to need not repeatedly change hand direction and action, therefore easily form muscle
Memory, the rotating speed of manual rotation drive disk can be held essentially constant, and improve drilling quality and speed.
It should be understood that the embodiment is only illustrative of the invention and is not intended to limit the scope of the invention.In addition, it is to be understood that
Read after the content of instruction of the present invention, those skilled in the art can make various changes or modifications to the present invention, these etc.
Valency form equally falls within the application appended claims limited range.
Claims (10)
1. a kind of Portable pulse hand drill, including support, it is characterised in that main shaft is rotatably connected on support, covers on main shaft
Driving bevel gear is provided with, drive disk is provided with support, drive disk is connected by rotating shaft with holder pivots, the axis of drive disk hangs down
Directly in the axis of main shaft, the edge of drive disk is provided with sliding tooth, and sliding tooth is meshed with driving bevel gear；At described rotating shaft
Clutch is provided with, reversing device is provided between rotating shaft and driving bevel gear, clutch includes being arranged on support
Fixed disk and the clutch discs being set in rotating shaft, fixed disk are provided with one section of clutch projection, clutch on the end face of clutch discs
Disk and rotating shaft eccentric setting, rotating shaft are provided with back-moving spring away from one end of support；Reversing device includes same with driving bevel gear
The reversion bevel gear that axle is fixed and the reversion bevel gear adjustment gear for engaging, the counter drive gear being set in rotating shaft, adjustment
The axis of gear with reversion bevel gear axis it is vertical, adjustment gear be connected with holder pivots, counter drive gear place plane and
Vertical range between plane where adjustment gear is highly identical with clutch projection；Main shaft is in axial sliding connection with support, branch
Frame is provided with one section of pulse projection on the end face of driving bevel gear, and driving bevel gear is provided with arteries and veins on the end face of support
Projection, pulse projection and driving bevel gear eccentric setting are rushed, driving bevel gear is provided with preloading spring away from one end of drill bit, institute
The side face stated is provided with the holding tank for depositing drill bit, and flexible lidstock arm is provided with two side walls of holding tank,
Two flexible lidstock arms have intersection in the midline of holding tank, and flexible lidstock arm is in the arc of outwardly convex.
2. Portable pulse hand drill according to claim 1, it is characterised in that it is in circular arc that described clutch is raised,
The raised two ends of clutch are provided with the guiding surface being connected with fixed side surface.
3. Portable pulse hand drill according to claim 1, it is characterised in that it is in circular arc that described pulse is raised,
The raised two ends of pulse are provided with the guiding inclined plane being connected with the end face of support.
4. Portable pulse hand drill according to claim 1, it is characterised in that be provided with described support from mantle
Gear, sets driven shaft at the axle center of driven wheel of differential, with driving bevel gear axisymmetricly, symmetry axis is driving to driven wheel of differential
The axis of the rotating shaft of disk.
5. the Portable pulse hand drill according to claim 1 or 2 or 3 or 4, it is characterised in that described support includes
Two symmetrically arranged hack levers, two symmetry axis of hack lever are the axis of main shaft, and one end of two hack levers is provided with main shaft sleeve,
The other end of two hack levers is provided with driven shaft axle sleeve, and the integral middle of two hack levers is connected with rotating shaft axle sleeve.
6. the Portable pulse hand drill according to claim 1 or 2 or 3 or 4, it is characterised in that spiral shell on described support
Line is connected with handle, and handle is coaxially disposed with drive disk.
7. Portable pulse hand drill according to claim 6, it is characterised in that handle sets inside one end of support
Water storage cavity is equipped with, handle is provided with weeper near one end of support, and support is provided with for blocking drop near one end of handle
The water shutoff in water hole is raised, and filling port is provided with handle.
8. Portable pulse hand drill according to claim 6, it is characterised in that handle inside one end of support away from setting
The storage chamber for depositing standby grinding wheel is equipped with, handle is provided with the end for covering storage chamber away from one end end of support
Lid, end cap is threadedly coupled with handle.
9. the Portable pulse hand drill according to claim 1 or 2 or 3 or 4, it is characterised in that drive disk is away from support
One end be provided with rocking arm, rocking arm middle part with drive side surface bolt connection, the free end vertical rocker-arm of rocking arm is provided with rocking handle.
10. Portable pulse hand drill according to claim 9, it is characterised in that rocking arm near drive disk axle center one
End is provided with rotating shaft mounting hole and rotating shaft buckling groove, the diameter with diameter greater than rotating shaft of rotating shaft mounting hole, the width of rotating shaft buckling groove
Degree is engaged with shaft diameter, and rotating shaft mounting hole is connected with rotating shaft buckling groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510232753.XA CN104923823B (en) | 2015-05-08 | 2015-05-08 | Portable pulse hand drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510232753.XA CN104923823B (en) | 2015-05-08 | 2015-05-08 | Portable pulse hand drill |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104923823A CN104923823A (en) | 2015-09-23 |
| CN104923823B true CN104923823B (en) | 2017-06-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510232753.XA Expired - Fee Related CN104923823B (en) | 2015-05-08 | 2015-05-08 | Portable pulse hand drill |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106041171A (en) * | 2016-08-16 | 2016-10-26 | 刘同珍 | Hand-cranking driving type hand drill |
| CN107096937B (en) * | 2016-11-23 | 2018-10-23 | 泰州市利优精密机械有限公司 | A kind of drilling machine structure easy to use |
| CN107096938B (en) * | 2016-11-23 | 2018-10-09 | 台州市荣能模塑有限公司 | A kind of drilling device of simple operation |
| CN106670549B (en) * | 2016-11-23 | 2018-06-22 | 枣阳市大通汽车零部件有限公司 | A kind of drilling equipment for drilling |
| CN107121305A (en) * | 2017-03-20 | 2017-09-01 | 朱德仲 | A kind of withered tree trunk hand-rail type drilling equipment of forest |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190902831A (en) * | 1909-02-05 | 1910-02-03 | Wade And Jones Ltd | Improvements in Hand Drilling Machines. |
| CN2357687Y (en) * | 1998-12-10 | 2000-01-12 | 中国石化齐鲁石油化工公司 | Straight shank hand drill |
| CN2801346Y (en) * | 2005-07-04 | 2006-08-02 | 河北农业大学 | Length-adjustable hand drill for drilling tree trunk |
| CN101648286A (en) * | 2008-08-14 | 2010-02-17 | 苏州宝时得电动工具有限公司 | Hammer drill |
| CN102380640A (en) * | 2010-08-31 | 2012-03-21 | 杨高怀 | Double-speed hand drill |
| CN203971390U (en) * | 2014-07-24 | 2014-12-03 | 明玉平 | Self shifter racing car |
-
2015
- 2015-05-08 CN CN201510232753.XA patent/CN104923823B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB190902831A (en) * | 1909-02-05 | 1910-02-03 | Wade And Jones Ltd | Improvements in Hand Drilling Machines. |
| CN2357687Y (en) * | 1998-12-10 | 2000-01-12 | 中国石化齐鲁石油化工公司 | Straight shank hand drill |
| CN2801346Y (en) * | 2005-07-04 | 2006-08-02 | 河北农业大学 | Length-adjustable hand drill for drilling tree trunk |
| CN101648286A (en) * | 2008-08-14 | 2010-02-17 | 苏州宝时得电动工具有限公司 | Hammer drill |
| CN102380640A (en) * | 2010-08-31 | 2012-03-21 | 杨高怀 | Double-speed hand drill |
| CN203971390U (en) * | 2014-07-24 | 2014-12-03 | 明玉平 | Self shifter racing car |
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| CN104923823A (en) | 2015-09-23 |
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