CN103481246B - Impact mechanism - Google Patents
Impact mechanism Download PDFInfo
- Publication number
- CN103481246B CN103481246B CN201310232663.1A CN201310232663A CN103481246B CN 103481246 B CN103481246 B CN 103481246B CN 201310232663 A CN201310232663 A CN 201310232663A CN 103481246 B CN103481246 B CN 103481246B
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- China
- Prior art keywords
- impact
- bolt
- beater mechanism
- damping
- portable
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- 230000007246 mechanism Effects 0.000 title claims abstract description 58
- 238000013016 damping Methods 0.000 claims description 61
- 125000006850 spacer group Chemical group 0.000 claims description 24
- 238000004080 punching Methods 0.000 claims description 9
- 230000033001 locomotion Effects 0.000 description 9
- 230000003116 impacting effect Effects 0.000 description 8
- 230000007935 neutral effect Effects 0.000 description 7
- 230000013011 mating Effects 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 239000013536 elastomeric material Substances 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D11/00—Portable percussive tools with electromotor or other motor drive
- B25D11/005—Arrangements for adjusting the stroke of the impulse member or for stopping the impact action when the tool is lifted from the working surface
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/06—Hammer pistons; Anvils ; Guide-sleeves for pistons
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/24—Damping the reaction force
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
- B25D2217/0011—Details of anvils, guide-sleeves or pistons
- B25D2217/0015—Anvils
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2217/00—Details of, or accessories for, portable power-driven percussive tools
- B25D2217/0011—Details of anvils, guide-sleeves or pistons
- B25D2217/0019—Guide-sleeves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2222/00—Materials of the tool or the workpiece
- B25D2222/54—Plastics
- B25D2222/57—Elastomers, e.g. rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/035—Bleeding holes, e.g. in piston guide-sleeves
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/131—Idling mode of tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/371—Use of springs
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The invention refers to an impact mechanism, especially an impact mechanism used for a hammer drill or jump bit (12a, b). The impact mechanism possesses an impact bolt (14a, b) and at least one dynamic element (16a, b) used for transferring the position of an impact bolt. According to the invention, the dynamic element (16a, b) is parallel with impact directions (18a, b) and is fixedly coupled to the impact bolt (14a, b) along and against the impact directions (18a, b).
Description
Technical field
The present invention relates to a kind of beater mechanism, in particular for the beater mechanism of hammer drill and/or jump bit.
Background technology
A kind of known beater mechanism, in particular for the beater mechanism of hammer drill and/or jump bit, with an impact bolt and
One portable element for being used to transmit impact bolt position.
The content of the invention
The present invention relates to a kind of beater mechanism, in particular for the beater mechanism of hammer drill and/or jump bit, rush with one
Hitting bolt and at least one is used to transmit the portable element of impact bolt position.
It is proposed that, at least one portable element parallel to impact direction along with against impact direction regularly
Couple with the impact bolt." hammer drill and/or jump bit " is especially appreciated that a hand-held tool within a context
Machine, it is arranged for by rotation or non-rotary workpiece processing tool, wherein, cutter can pass through hand held power machine
It is loaded impulse." hand held power machine " is especially appreciated that a toolroom machine within a context, and it is set
For by user with manual operating processing workpiece." beater mechanism " is especially appreciated that a dress within a context
Put, it has at least one part, the part is arranged for producing on impact direction and/or transmit impulse, outstanding
Which is axial impulse on an impact bolt.One such part can especially impacter, director element（As especially
Which is hammer pipe）And/or piston（Such as especially tank shape piston）And/or other seem significant part for technical staff." hammer
Pipe " be especially appreciated that within a context a part for preferably constituting tubularly, impact bolt and/or impacter and/
Or piston is oriented in the part." piston " be especially appreciated that within a context one along with against impact direction
Part that is powered periodically, being oriented in hammer pipe, it is arranged for can be to hammering one in pipe into shape by impacter and work
The space on-load pressure that plug is surrounded makes impacter move periodically.Impacter also can pass through an outside, be arranged on hammer
The pressure source of tube outside is driven by the space periodicity on-load pressure of impacter gauge at least one of hammer pipe.It is preferred that,
Impacter in impact operation in hammer pipe along with moved against impact direction periodically and impulse be applied to into punching
Hit on bolt.It is preferred that impact bolt is delivered to impulse on cutter.Cutter is preferably clamped in tool holder." setting " is outstanding
Which is to be appreciated that special design and/or special configuration." impact bolt position " especially should be appreciated that within a context
To impact position of the bolt relative to hammer pipe on impact direction.Especially impact bolt spring can be preferably overcome against impact direction
Power is moved in an impact position from a neutral." impact position " is especially appreciated that one within a context
Individual impact bolt position, wherein beater mechanism are arranged for impact operation." impact operation " within a context especially should be by
A running status of beater mechanism is interpreted as, wherein beater mechanism is applied to impulse on cutter, these impulses
It is arranged for processing workpiece.The impact strength of impulse can be determined by the design of beater mechanism and/or by making
The control unit of user and/or beater mechanism determines." neutral " is especially appreciated that a punching within a context
Bolt position is hit, wherein beater mechanism is arranged for free-runing operation." free-runing operation " especially should be appreciated that within a context
For a running status of beater mechanism, wherein beater mechanism does not apply or only applies the impulse of very little, especially has
The impact punching of 50%, preferably smaller than 25%, particularly preferably less than 10% less than the impact strength in the operating impulse of impact
Amount.Impact bolt is preferably limited by a backstop to the displacement of neutral and impact position.It is preferred that impact bolt is from idle running position
Put and be displaced in impact position, its mode is that user is pressed onto cutter on workpiece to be processed.Cutter and/or tool holder
It is preferred that being moveably supported on impact direction on hammer drill and/or jump bit.Cutter and/or tool holder are against impact side
To being supported on impact bolt and when more than minimum thrust make impact bolt overcome spring force to move to impact from neutral
In position.If cutter is stopped by workpiece, then impact bolt and cutter and/or tool holder can be by spring forces toward return
Move in neutral.It is preferred that at least one portable element be arranged for transmission impact bolt position so as to make impact bolt from
Free-runing operation is transformed in impact operation, and vice versa." being fixedly coupled " is especially appreciated that within a context, takes
Impact is bearing in the state that dynamic element is installed in a running ready in beater mechanism on impact direction seamlessly
On bolt." gapless " is especially appreciated that within a context, and portable element is relative to impact bolt on impact direction
Supporting of the relative motion by portable element on impact bolt is limited in 1mm, preferably smaller than 0.5mm, is particularly preferably less than
0.1mm.It is particularly preferred that portable element can be arranged for along with exert a force to against impact direction impact bolt on.
Impact bolt position particularly securely can be passed.This can save part, especially save impact bolt and portable element it
Between the drive disk assembly arranged, such as stop sleeve.The stop surface for stop sleeve on backstop bolt can be removed.Impact
Bolt, the manufacture of the outline for especially impacting bolt can be simplified.The quality of impact bolt can be especially big.Impact bolt can transfer
Extra high impulse.Impact bolt position can be by least one portable element along impact direction and against impact
Direction transfers.Power can by impact bolt by portable element along with transfer against impact direction.Impact bolt can along with it is inverse
Impact direction to support by portable element.
Also advise, impact bolt takes driving wheel exterior feature with least one, at least one portable element is directly supported at this and takes driving wheel
On exterior feature, and it is arranged for driving at least one portable element parallel to impact direction." take driving wheel wide " within a context
A support contour is appreciated that especially, it is arranged at least taking unit along with against impact direction supporting
Part." direct " is especially appreciated that within a context and is taking the direct machine between driving wheel exterior feature and the surface of portable element
Tool is contacted.Take the dead slot that driving wheel exterior feature is preferably constructed in impact bolt.Preferably, portable element has an outline, and it permits
Permitted to be inserted into take driving wheel exterior feature in, so as to portable element at least along be seamlessly bearing in against impact direction impact bolt on.
Preferably, portable element is configured to bolt.It is preferred that taking driving wheel exterior feature is configured to mating holes.Portable element can be with shape sealed twelve Earthly Branches
Hold on impact bolt.The supporting can be especially reliable.Power between portable element and impact bolt reliably can be passed.Especially
Preferably, the driving wheel exterior feature of taking for being configured to mating holes is configured to blind hole.The maximum insertion depth of portable element can pass through blind
Hole limits.Boss for limited inserting depth can be removed in portable element.Portable element can particularly simply structure
Into being especially configured to cylinder bolt.It is preferred that Ground shock waves bolt has multiple driving wheels of taking wide, particularly preferred two are taken driving wheel exterior feature.It is excellent
Select beater mechanism that there are multiple portable elements, particularly preferred two.Particularly preferably each takes driving wheel one portable element of wide supporting.
Take driving wheel exterior feature and portable element particularly simply can be constituted.Impact bolt position and power can be by impact bolts relative to impact bolt
One axis of symmetry pointed on impact direction is symmetrically forwarded.
Suggestion, is taken driving wheel exterior feature and is integrally formed with impact bolt.It is particularly preferred that impact bolt with take driving wheel exterior feature by a part
Make.Other, formation is taken the wide part of driving wheel, especially bearing sleeve and can be removed.The coupling of impact bolt and portable element
Conjunction can be especially reliable and/or with low cost.
Suggestion, at least one portable element be arranged for will impact bolt position be delivered to a control sleeve and/
Or on spacer sleeve." control sleeve " is especially appreciated that the part of an encirclement impact tube, its quilt within a context
It is provided for beater mechanism is changed between free-runing operation and impact operation.In particular, control sleeve can be arranged for
The release idle running opening in neutral, idle running opening make the space ventilator connected with impacter, and it is right that the space is arranged for
Impacter on-load pressure.The pressure-loaded of impacter can at least be reduced in free-runing operation and impacter motion at least by
Reduce.Idle running opening is preferably positioned in hammer pipe.It is preferred that idle running opening hammer pipe in be arranged on impacter away from impact side
To side.It is preferred that control sleeve is arranged for covering in impact position and at least substantially closing idle running is open." extremely
It is few substantially " be especially appreciated that within a context flow cross section reduce by more than 90%, preferably greater than 95%, it is especially excellent
Choosing is more than 99%.Impact bolt position can be efficiently used for making impact bolt change between free-runing operation and impact operation." interval
Sleeve " is especially appreciated that a part being arranged on impact direction before control sleeve within a context, should
Part is arranged for impact bolt position is delivered in control sleeve from portable element.Spacer sleeve can be straight with control sleeve
Connect or preferably connect indirectly by other part.It is preferred that substantially only can transmit between spacer sleeve and control sleeve
Pressure and/or power transmission in damped.Control sleeve can effectively be protected the power in order to avoid by being transmitted by impact bolt
Overload and/or damage.
Also advise one be arranged on portable element on impact direction before damping element, it be arranged for damping punching
The recoil for hitting bolt is hit." recoil is hit " of impact bolt is especially appreciated that impact bolt is hit by cutter recoil.Exist in impact bolt
After its part energy being exported on cutter and recoiled by cutter when impacting on cutter, there is recoil and hit.
Impact bolt can be moved until the impulse that the next one is applied to by impacter on impact bolt is against impact direction now
Only.Impact bolt is transmitted by portable element against the motion of impact direction.It is arranged in behind portable element on impact direction
Damping element can effectively damp recoil and hit.Especially damping element can be reduced and counter impact control sleeve and/or punching
The transmission hit on other parts of mechanism.Vibration can be avoided by.Operation comfort can be enhanced.Noise emission can be subtracted
It is few.Abrasion can be reduced.Damping element preferably at least partly can be made up of a kind of elastomeric material.
Suggestion, is arranged between spacer sleeve and control sleeve for damping the damping element that recoil is hit.It is particularly preferred that
Damping element is configured to the annular element between spacer sleeve and control sleeve.Preferably, damping element surrounds hammer pipe.Especially
Preferably, damping element is configured to elastomeric ring.Damping element effectively can damp it is counter impact in control sleeve turn
Send.
Also advise a damping element being arranged on impact direction behind portable element, it is arranged for damping punching
Hit empty impact of the device to impact bolt." empty impact " is especially appreciated that impacter on impact bolt within a context
Impact, the impact in free-runing operation are carried out and/or are carried out when cutter is not forced into or is only insufficiently pressed onto on workpiece.It is empty
Impact especially just can be carried out when the transition in free-runing operation is run to from impact.Move in free-runing operation in impacter
Before being at least reduced, impacter still can occur repeatedly on impact bolt in the transition.In idle running, cutter is not or only
Rarely it is supported on cutter.Cutter accelerates on impact direction, until a backstop of the motion by tool holder
Limited.The backstop is prevented, and cutter and/or tool holder in empty impact fly out to come from hammer drill and/or jump bit.Backstop
Motion of the impact bolt on impact direction can preferably be limited and the energy of impact bolt is directed to into hammer drill and/or jump bit
On.The damping element behind portable element is arranged on impact direction to be arranged for damping the empty impact for impacting bolt simultaneously
And the energy of empty impact is transferred on hammer drill and/or jump bit.It is preferred that the energy transmission to that sky is impacted by damping element
On the beater mechanism housing of supporting hammer pipe.Empty impact can be effectively damped.Can be avoided by by the damage of empty impact.It is empty
The power stream of impact can be especially short.Beater mechanism can be with particularly strong.
Also advise, spacer sleeve is supported on for damping the empty damping element for impacting on impact direction.Preferably, hinder
Buddhist nun's element is made up of elastomeric material at least in part.Empty impact effectively can pass through interval via portable element from impact bolt
Sleeve is transferred on damping element.Control sleeve can effectively be protected against empty impact.
Also advise, the damping element for damping empty impact can be supported on beater mechanism housing on impact direction.
It is preferred that a backstop on beater mechanism housing is arranged on for damping before the empty damping element for impacting on impact direction.With
Effectively empty impact can be transferred on beater mechanism housing in the damping element of the empty impact of damping.Other parts can be by
It is protected from empty impact.Can be especially direct for sky is impacted from impact bolt the power stream being directed on beater mechanism housing.Especially
Its ground, empty impact can be drawn out to beater mechanism housing from bolt is impacted by a small amount of part, especially by portable element,
Spacer cylinder, for damping the support meanss of the damping element and damping element of empty impact on beater mechanism housing.
Also advise a toolroom machine with described beater mechanism.The toolroom machine can have being retouched for beater mechanism
The advantage stated.
Description of the drawings
Other advantages are given by following description of the drawings.Two embodiments of the present invention are shown in the drawings.Accompanying drawing, say
Bright book and claim combinations get up containing substantial amounts of feature.Technical staff purposefully also individually consider these features and
It is combined into significant other combinations.Which illustrates：
Fig. 1 illustrates the schematic diagram of a part for the beater mechanism with portable element, and the portable element is parallel to impact side
To with impact bolt be fixedly coupled；With
Fig. 2 illustrates the schematic diagram of a part for the beater mechanism with portable element in a second embodiment, and this is taken
Element is fixedly coupled with impact bolt parallel to impact direction.
Specific embodiment
Fig. 1 illustrates the schematic diagram of a part of the beater mechanism 10a of a hammer drill and/or jump bit 12a, rushes with one
Hit bolt 14a and two portable elements 16a for being used to transmit impact bolt position.Beater mechanism 10a is configured to pneumatic shock machine
Structure.Such beater mechanism is structurally and functionally known at which for technicians.Impacter 30a is along impact side
It is moveably supported in hammer pipe 34a to 18a and against impact direction 18a.One it is not being shown specifically here, by bias
The piston of actuator drives is similarly arranged to be moveably supported on the side of impact direction 18a in impacter 30a
In hammer pipe 34a.Piston cause in the motion along impact direction 18a to hammer into shape pipe 34a in one be enclosed in impacter 30a and
The compression of the discharge chambe 36a between piston, so as to directions of the impacter 30a towards impact bolt 14a on impact direction 18a adds
Speed.When striking on impact bolt 14a, impacter 30a is transferred to impulse on the impact bolt.Piston is now against impact
Direction 18a move, so as to impacter 30a by impact bolt 14a recoil hit and discharge chambe 36a in pass through piston movement it is relative
In impact bolt 14a and impacter 30a between be arranged on hammer pipe 34a in impulse chamber 38a in pressure drop pressure against
Impact direction 18a is back moved.The process is periodically repeated in impact run duration, so as to impacter 30a repeatedly will punching
Hit momentum to be applied on impact bolt 14a.Impact bolt 14a is coaxially moveably supported at tool holder 40a with hammer pipe 40a
In；Tool holder 40a is fixedly supported in hammer pipe 34a on impact direction 18a.In impact bolt on impact direction 18a
The 14a persons of being used behind can be clamped to cutter 42a in tool holder 40a.Hammer pipe 34a is between impacter 30a and piston
A region in have idle running opening 36a.If these idle running openings are opened, then discharge chambe 36a and shock machine occur
The pressure compensation of the surrounding of structure 10a, so as to impacter 30a does not pass through or is only rarely accelerated by piston movement.Hammer pipe
Surrounded by control sleeve 22a.Control sleeve 22a is moveably supported at hammer pipe 34a along with against impact direction 18a
On.One spring element 48a is supported in backstop 52a being arranged on impact direction 18a before idle running opening 44a simultaneously
And be supported in control sleeve 22a on its opposite end and a spring force 50a is applied along impact direction 18a
It is added in control sleeve 22a.Control sleeve 22a on impact direction 18a is supported on one and control is arranged on impact direction 18a
Sleeve 22a processed being configured on the damping element 26a of damping ring below.Damping element 26a is supported on impact direction 18a
On one spacer sleeve 24a being arranged on impact direction 18a behind damping element 26a.Damping element 26a is arranged in interval
Between sleeve 24a and control sleeve 22a.Spacer sleeve 24a has two mating holes 54a and is configured to cylinder with two
Portable element 16a parallel to impact direction 18a for taking bolt along with against impact direction 18a regularly with impact bolt
14a is coupled.Impact bolt 14a takes driving wheel exterior feature 20a with two, takes at these and directly support on driving wheel exterior feature portable element 16a, and
They are arranged for driving portable element 16 parallel to impact direction 18a.Take driving wheel exterior feature 20a and impact bolt 14a integratedly structures
Into and be configured to mating holes, these mating holes are configured to blind hole.One retaining ring 58a surround spacer sleeve 24a and
Portable element 16a is fixed in mating holes 54a.Thus portable element 16a is arranged for will be between impact bolt position be delivered to
On spacer cylinder 24a and control sleeve 22a.
Spring element 48a by spring force 50a via control sleeve 22a move damping element 26a, spacer sleeve 24a and
Portable element 16a is until the backstop profile 56a of tool holder 40a（Fig. 1, lower half）.In neutral 64a, idle running
Opening 44a is opened and beater mechanism 10a is located in free-runing operation.
If hammer drill and jump bit 12a are pressed against on the workpiece that a here is not shown specifically with cutter 42a by user,
Spring force 50a is overcome along with the cutter 42a movingly supported against impact direction 18a so in tool holder 40a
Against impact direction 18a movements impact bolt 14a and portable element 16a, spacer sleeve 24a, damping element 26a and control sleeve
22a, until control sleeve 22a reaches backstop 52a（Fig. 1, top half）.In impact position 66a, control sleeve 22a is existing
Idle running opening 44a is being covered, so as to piston can produce pressure and impacter 30a can pass through pressure in discharge chambe 36a
Loading is accelerated.It is applied on cutter 42a during beater mechanism 10a is now currently located in impact operation and by impulse, if living
Plug is by radial gear with the powered words of the frequency of impact permitted.
Damping element 26a is arranged for damping the recoil of impact bolt 14a and hits.If impact bolt 14a one-shot it
Clashed into against impact direction 18a by cutter 42a afterwards, then the recoil is hit and is transferred to spacer sleeve 24a by portable element 16a
On.The recoil is hit with damping mode and is transferred in control sleeve 22a and protects control sleeve against damages by damping element 26a
And avoid vibration.A kind of following explanation of further embodiment and accompanying drawing are basically limited to the difference between these embodiments,
Wherein, with regard to keeping constant part, can also substantially refer to other especially with respect to the part with same reference numerals
The accompanying drawing of embodiment and/or explanation.In order to distinguish these embodiments, the alphabetical a of first embodiment is replaced to add second embodiment
Alphabetical b.
Fig. 2 illustrates the signal of a part of the beater mechanism 10b of hammer drill and/or jump bit 12b in second embodiment
Figure, is used to transmit portable element 16b of impact bolt position with an impact bolt 14b and two.Beater mechanism 10b and first is real
That applies example distinguishes an especially damping element 28b being arranged on impact direction 18b behind portable element 16b, and it is set
Put the empty impact for impacter 30 being damped on impact bolt 14b.If cutter 42b is not forced on workpiece or only with not
The pressure of foot is pressed onto on workpiece, then cutter avoids impulses of the impact bolt 14b along impact direction.In order that impact bolt
14b stops, and the impact energy for impacting bolt must be exported.One beater mechanism housing 32b for surrounding hammer pipe 34b is logical with one
Cross the backstop disk 60b of relieving ring 62b fixations.Arrange between the backstop disk 60b and a spacer sleeve 24b and be configured to damping ring
Damping element 28b.Spacer sleeve 24b is supported on for damping the empty damping element 28b for impacting on impact direction.For
The damping element 28b of the empty impact of damping is supported on beater mechanism housing 32b by backstop disk 60b on impact direction 18b.Such as
Fruit impacter 30b is struck on impact bolt 14b, then it is moved on impact direction 18b.If cutter 42b is to impacting bolt 14b
There is without retroaction or only the resistance of very little, then impact bolt 14b can be moved and spacer sleeve on impact direction
24b is moved on impact direction with impact bolt.If the distance between spacer sleeve 24b and backstop disk 60b are less than damping unit
Expansions of the part 28b on impact direction 18b in unloaded state, then damping element 28b is in spacer sleeve 24b and backstop disk
One is resiliently deformed and is applied on spacer sleeve 24b between 60b with the counteractive reset forces of impact direction 18b.Damping
Element 28b exports impulse on beater mechanism housing 32b to impact bolt 14b brakings and in the way of dampened.Punching
Hit hard hits of the bolt 14b on the backstop profile 56b of tool holder 40b to hit and can be avoided by.Impact bolt 14b passes through portable element
The power stream of 16b, spacer sleeve 24b, damping element 28b, backstop disk 60b, relieving ring 62b to beater mechanism housing 32b has number
The especially few part of amount and especially short distance.The power stream is particularly securely forwarded.
Claims (9)
1. beater mechanism, is used to transmit the portable element of impact bolt position with impact bolt (14a, 14b) and at least one
(16a, 16b), wherein, at least one portable element (16a, 16b) parallel to impact direction (18a, 18b) along with against
Impact direction (18a, 18b) is regularly coupled with impact bolt (14a, 14b), is provided with one at impact direction (18a, 18b)
On be arranged in damping element (26a, 26b) before at least one portable element (16a, 16b), the damping element is set
Put and hit for the recoil for damping impact bolt (14a, 14b), it is characterised in that at least one portable element (16a,
16b) it is arranged for for impact bolt position being delivered to a control sleeve (22a, 22b) and a spacer sleeve (24a, 24b)
On, and a spacer sleeve (24a, 24b) and a control are arranged in for damping the damping element (26a, 26b) that recoil is hit
Between sleeve (22a, 22b).
2. beater mechanism according to claim 1, it is characterised in that the impact bolt (14a, 14b) is with least one
Driving wheel exterior feature (20a, 20b) is taken, and directly at least one portable element of supporting (16a, 16b) on driving wheel exterior feature is taken described, and it is described
Take driving wheel exterior feature to be arranged for driving at least one portable element (16a, 16b) parallel to impact direction (18a, 18b).
3. beater mechanism according to claim 2, it is characterised in that described at least one take driving wheel exterior feature (20a, 20b) with
Impact bolt (14a, 14b) is integratedly implemented.
4. beater mechanism according to claim 1 and 2, it is characterised in that be provided with and arrange on impact direction (18b)
Damping element (28b) behind at least one portable element (16b), it is arranged for damping an impacter
(30b) the empty impact on impact bolt (14b).
5. beater mechanism according to claim 4 a, it is characterised in that spacer sleeve (24b) is at impact direction (18b)
On be supported on for damping the damping element (28b) of empty impact.
6. beater mechanism according to claim 4, it is characterised in that the damping element (28b) for damping empty impact exists
It is supported on impact direction (18b) on a beater mechanism housing (32b).
7. beater mechanism according to claim 1 and 2, it is characterised in that the beater mechanism is for hammer drill and/or punching
The beater mechanism of hammer (12a, 12b).
8. toolroom machine, with the beater mechanism according to any one of above claim 1-7.
9. toolroom machine according to claim 8, it is characterised in that the toolroom machine is hammer drill and/or jump bit.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102012209875A DE102012209875A1 (en) | 2012-06-13 | 2012-06-13 | striking mechanism |
| DE102012209875.5 | 2012-06-13 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103481246A CN103481246A (en) | 2014-01-01 |
| CN103481246B true CN103481246B (en) | 2017-04-19 |
Family
ID=48095697
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310232663.1A Expired - Fee Related CN103481246B (en) | 2012-06-13 | 2013-06-13 | Impact mechanism |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2674257B1 (en) |
| CN (1) | CN103481246B (en) |
| DE (1) | DE102012209875A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6479570B2 (en) * | 2015-05-19 | 2019-03-06 | 株式会社マキタ | Work tools |
| US20240198505A1 (en) * | 2022-12-20 | 2024-06-20 | Milwaukee Electric Tool Corporation | Percussion tool |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH588632A5 (en) * | 1975-03-04 | 1977-06-15 | Bosch Gmbh Robert | Impact drill with swashplate - has spring loaded pneumatic impact piston reciprocating inside tool drive sleeve |
| CN2376355Y (en) * | 1999-04-23 | 2000-05-03 | 刘志高 | Impact device for electric drill |
| DE10346534A1 (en) * | 2003-10-07 | 2005-05-12 | Bosch Gmbh Robert | Hand tool with a striking mechanism and method for operating the power tool |
| SE529615C2 (en) * | 2006-02-20 | 2007-10-09 | Atlas Copco Rock Drills Ab | Percussion and rock drill and method for controlling the stroke of the piston |
| DE102006056848A1 (en) * | 2006-12-01 | 2008-06-05 | Robert Bosch Gmbh | Pneumatic impact tool for hand operated machine tool, has hammer tube and closing element directly connected with impact pin only as common sliding unit |
| CN101444909B (en) * | 2007-11-27 | 2013-03-27 | 希尔蒂股份公司 | Hand-held tool machine with pneumatic impacting device |
| DE102008054873A1 (en) * | 2008-12-18 | 2010-07-01 | Robert Bosch Gmbh | Hand tool with counter-oscillator |
| DE102011007433A1 (en) * | 2010-04-20 | 2011-12-08 | Robert Bosch Gmbh | Hand machine tool device |
| DE102010044011A1 (en) * | 2010-11-16 | 2012-05-16 | Hilti Aktiengesellschaft | Hand tool |
-
2012
- 2012-06-13 DE DE102012209875A patent/DE102012209875A1/en not_active Withdrawn
-
2013
- 2013-04-15 EP EP13163651.6A patent/EP2674257B1/en not_active Not-in-force
- 2013-06-13 CN CN201310232663.1A patent/CN103481246B/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP2674257A1 (en) | 2013-12-18 |
| CN103481246A (en) | 2014-01-01 |
| EP2674257B1 (en) | 2016-10-26 |
| DE102012209875A1 (en) | 2013-12-19 |
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