CN101152712A - Impacting device - Google Patents
Impacting device Download PDFInfo
- Publication number
- CN101152712A CN101152712A CNA2007101618872A CN200710161887A CN101152712A CN 101152712 A CN101152712 A CN 101152712A CN A2007101618872 A CNA2007101618872 A CN A2007101618872A CN 200710161887 A CN200710161887 A CN 200710161887A CN 101152712 A CN101152712 A CN 101152712A
- Authority
- CN
- China
- Prior art keywords
- elementary cell
- percussion mechanism
- support unit
- uncoupling device
- unit
- 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.)
- Pending
Links
- 230000003116 impacting effect Effects 0.000 title abstract description 3
- 238000009527 percussion Methods 0.000 claims description 25
- 239000000463 material Substances 0.000 claims description 9
- RRHGJUQNOFWUDK-UHFFFAOYSA-N Isoprene Chemical compound CC(=C)C=C RRHGJUQNOFWUDK-UHFFFAOYSA-N 0.000 claims description 4
- 229920001195 polyisoprene Polymers 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 7
- 229920001971 elastomer Polymers 0.000 description 4
- 229910000851 Alloy steel Inorganic materials 0.000 description 3
- 239000000806 elastomer Substances 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000008602 contraction Effects 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000036540 impulse transmission Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 229910001092 metal group alloy Inorganic materials 0.000 description 1
- 230000000644 propagated effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000008093 supporting effect Effects 0.000 description 1
Images
Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
-
- 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
- B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
- B25D2211/06—Means for driving the impulse member
- B25D2211/061—Swash-plate actuated impulse-driving mechanisms
-
- 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
Abstract
The present invention relates to an impacting device which is used for jumper bit, hammer drill and/or pricker hammer machine. The device is provided with an impulse pin unit (54) which comprises a base unit (12) and a support unit (14) supported on relative component (16). The base unit (12) and the support unit (14) are separated from each other.
Description
Technical field
The present invention relates to a kind of percussion mechanism, in particular for jump bit, hammer drill and/or hammer machine, have the impulse pin unit, this impulse pin unit comprises elementary cell and is used to be supported on a support unit on the member that is associated.
Background technology
Known this percussion mechanism in particular for jump bit, hammer drill and/or hammer machine, has the impulse pin unit, and this impulse pin unit comprises elementary cell and support unit.Support unit constitutes integratedly with elementary cell and is used for elementary cell is supported on the member that is associated.
Summary of the invention
The present invention relates to percussion mechanism, in particular for jump bit, hammer drill and/or hammer machine, have the impulse pin unit, this impulse pin unit comprises elementary cell and is used to be supported on support unit on the member that is associated.
The present invention proposes: elementary cell and support unit constitute apart from each other, can be implemented to the maximum impulse transmission on the cutter thus, especially work as shock pulse and are delivered under the situation on the cutter by the elementary cell of a block stamp by the impulse pin unit.In the case, when transmitting pulse, can reduce at least and/or avoid to form vortex in the zone of the support unit of impulse wave in the impulse pin unit propagated by elementary cell and/or partly be reflected.This decline that causes interior undesirable impulse wave of elementary cell or power to superpose especially at least reaches the damage of the elementary cell material that interrelates therewith, for example increase and/or the fracture of elementary cell wearing and tearing.Here especially be interpreted as such unit for " impulse pin unit ": it is supported movingly as the unit and/or especially is made of the element of connection fixed to one another and/or in particular in the beater mechanism of hand held power machine pulse being delivered on the cutter, for example be used for pulse is delivered to cutter by block stamp by the impulse pin unit, reach the dirt and the sealing of dirt bits that occur when preferably this impulse pin unit makes beater mechanism work with respect to hand held power machine.Preferably elementary cell is made of an impulse pin that transmits pulse.Be interpreted as for " constituting apart from each other " aspect the present invention: elementary cell and support unit constitute by different materials and/or by different members, and wherein the different materials of elementary cell and support unit and/or member can directly closely be arranged each other.
If elementary cell and support unit are made of different materials at least in part, then can reduce and avoid impulse wave undesirable, that propagate by elementary cell to the transmission of support unit and support unit can with elementary cell in almost uncoupling aspect pulse transmission or the impulse wave transmission.
Advantageously, elementary cell has invariable cross section along a principal spread direction, almost can avoid in the elementary cell, for example in having the zone adjacent one another are of varying cross-section, forming vortex (Verwirbelung) and power thus and stop up, and the high service life that can advantageously realize elementary cell thus.This cross section can or particularly advantageously be made of circular cross section by the cross section that the angle is arranged in the case, so that elementary cell has cylindrical shape.
Propose in another configuration of the present invention, support unit has at least one uncoupling device, structurally simple uncoupling between support unit and the elementary cell in the time of can being implemented in the pulse transmission thus.Preferably this uncoupling device by elastomeric material constitute, especially the device by caoutchouc elasticity constitutes, it has little modulus of elasticity, this modulus of elasticity is preferably less than 500N/mm
2Particularly advantageously be, the uncoupling device has the element of at least one caoutchouc elasticity, and wherein the element of this caoutchouc elasticity preferably is made of elastomer and/or rubber type of material.Also can use in addition by the professional and think that significant other has the material of elastic characteristic, for example waited by the metal alloy that is fit to and constitute the uncoupling device.
Advantageously, uncoupling device bow-shaped section form ground at least arranges around elementary cell, can reach the ripple of elementary cell and/or the pulse effective uncoupling to the bracing or strutting arrangement thus.Particularly advantageous is that the uncoupling device is arranged around elementary cell circlewise, so that can be realized the uncoupling that pulse is closed in a circumferential direction around elementary cell.
When support unit also has at least another bracing or strutting arrangement except the uncoupling device, can be implemented in the member that is associated, simply support as especially hammering into shape on the particularly advantageous and structure on the pipe, wherein, this another bracing or strutting arrangement preferably is set between elementary cell and the member that this is associated.Bracing or strutting arrangement is preferably by a kind of hard material, for example be made of steel alloy.
Advantageously, this another bracing or strutting arrangement bow-shaped section form ground at least arranges around elementary cell, can realize thus at least in part on the elementary cell circumferencial direction in the support of for example hammering into shape on the pipe.Particularly advantageous is that this another bracing or strutting arrangement is arranged around elementary cell circlewise, so that can be realized the support that elementary cell is closed in a circumferential direction.
In another configuration of the present invention, propose; the uncoupling device is set on this another bracing or strutting arrangement; thus can advantageously protected uncoupling device when transmitting pulse by elementary cell, and elementary cell especially can be supported on the member that is associated by this another bracing or strutting arrangement when the big pulse (Impuls) of transmission basically.In addition, when uncoupling device and this another bracing or strutting arrangement constitute integratedly, can advantageously save other member, structure space, installation and expend and cost.
In addition, a kind of hand held power machine is also proposed, especially jump bit, hammer drill and/or hammer machine, it has percussion mechanism, can advantageously realize thus a kind ofly transmitting the hand held power machine of pulse efficiently especially, this pulse is delivered on the cutter by the beater mechanism with percussion mechanism of the present invention.
Description of drawings
Other advantage of the present invention can obtain from following description of drawings.Embodiments of the invention shown in the drawings.Accompanying drawing, specification and other application documents comprise a plurality of assemblage characteristics.The professional can meet the destination and individually investigate these features and sum up significant other combination.
Accompanying drawing is represented:
Fig. 1: along hand held power machine fragmentary cross-sectional view longitudinally, this hand held power machine has beater mechanism and percussion mechanism of the present invention,
Fig. 2: the profile of percussion mechanism among Fig. 1,
Fig. 3: the percussion mechanism among Fig. 2 reaches along the profile of line III-III
Fig. 4: relatively Fig. 2 conversion the profile of percussion mechanism.
The specific embodiment
Fig. 1 illustrates the fragmentary cross-sectional view longitudinally of the drive line of a hand held power machine 24 that is configured to hammer drill, and this hand held power machine has beater mechanism 26.This beater mechanism 26 is used for impacting ground and drives a unshowned cutter.
Impact in order to transmit pulseds along driving direction 28, this beater mechanism 26 comprises that a swing refers to that 30, hammer pistons 32, block stamp 34 and one are according to the percussion mechanism 10 (Fig. 1) with impulse pin unit 54 of the present invention.When hand held power machine is worked, drive beater mechanism 26 by unshowned electric drive unit, wherein, driving torque is realized by driving shaft 36 by the transmission of driver element to beater mechanism 26.Ball bearing 38 around drive shaft rotating 36 supportings will be swung when hand held power machine 24 moves and refer to that 30 are set to oscillating motion.Refer to 30 by swing, at the stroke motion that is created on the hammer piston 32 that constitutes by a jar shape piston on form by driving direction 28 axial.Connecting a pneumatic unit 40 on hammer piston 32 on driving direction 28, the stroke motion by hammer piston 32 in this pneumatic unit produces negative pressure or overvoltage.Negative pressure in the pneumatic unit 40 or overvoltage produce block stamp 34 reciprocating motion in hammer piston 32 in the axial direction, and produce an axial shock pulse by block stamp 34.This axial pulse continues to be transferred on the elementary cell 12 of percussion mechanism 10 and is transferred on the cutter by this elementary cell by block stamp 34, this cutter is in the tool fitting 42 of hand held power machine 24.
The percussion mechanism 10 of beater mechanism 26 inside has impulse pin unit 54, and this impulse pin unit comprises the elementary cell 12 and the support unit 14 that are made of impulse pin.This support unit 14 is supported on elementary cell 12 or impulse pin unit 54 on the member 16 that is associated with it, be made of a hammer pipe.This member that is associated 16 arranges that around beater mechanism 26 the hammer pipe that reaches by hand held power machine 24 constitutes cylindrically.For a maximum impact is delivered on the cutter along driving direction 28, the elementary cell 12 of impulse pin unit 54 and support unit 14 constitute with being separated from each other.By the structure that separates of impulse pin unit 54, be reduced and can avoid basically undesirable power stack in the elementary cell 12 by elementary cell 12 to the pulse of support unit 14 or the transmission of impulse wave, this power stack can cause destroying.
For this reason, elementary cell 12 is made of a kind of steel alloy and constitutes with the principal spread direction 18 (Fig. 2) of identical cross circular section cylindricality ground along elementary cell 12.At this, the driving direction 28 of the relative hand held power machine 24 of the principal spread direction of elementary cell 12 extends abreast.
Another bracing or strutting arrangement 22 is provided with (Fig. 1 to 3) circlewise around uncoupling device 20, and wherein, this another bracing or strutting arrangement 22 is made of a kind of steel alloy.But also can at any time consider in principle to think that with the professional significant other material constitutes this another bracing or strutting arrangement 22 and/or consideration constitutes support unit 14 or decoupling cell 20 integratedly with this another bracing or strutting arrangement 22.Structure by support unit 14, uncoupling device 20 is arranged between elementary cell 12 and this another bracing or strutting arrangement 22 (Fig. 3), so that in the hand held power machine 24 maximum uncouplings that when being delivered to cutter on by elementary cell 12 pulse, can between elementary cell 12 and support unit 14, realize pulse or impulse wave in service.This another bracing or strutting arrangement 22 is connected to each other with the plastic deformation of uncoupling device 20 by radial contraction or this another bracing or strutting arrangement 22.
The member 16 that is associated with support unit 14 comprises two ring- type elements 46,48 along driving direction 28 in the zone of percussion mechanism 10, wherein, these ring- type elements 46,48 are arranged on this member that is associated 16.These two ring- type elements 46,48 are arranged in the zone of impulse pin unit 54 on this member that is associated 16, and its task is: limit the axially-movable of impulse pin 54 in the axial direction.A ring-type element 46 in two is set in the zone of block stamp 34, and another ring-type element 48 is set in the zone of tool fitting 42.
Can consider also that in principle support unit 14 is distributed in the different subregions along elementary cell 12, wherein, these subregions arrange separately, as in Fig. 4 with relative Fig. 1 to 3 conversion percussion mechanism 10 represented.In the case, in a zone 50 of the driving side of elementary cell 12 and respectively be provided with the combination of a uncoupling device 20 and an other bracing or strutting arrangement 22 in the zone 52 at the elementary cell slave end.At this, the structure of support unit 14 and elementary cell 12 or impulse pin unit 54 and layout are corresponding to the structure and the layout of impulse pin unit 54 among Fig. 1 to 3.
Claims (10)
1. percussion mechanism, in particular for jump bit, hammer drill and/or hammer machine, has impulse pin unit (54), this impulse pin unit comprises elementary cell (12) and is used to be supported on support unit (14) on the member (16) that is associated, it is characterized in that: this elementary cell (12) constitutes apart from each other with support unit (14).
2. according to the percussion mechanism of claim 1, it is characterized in that: this elementary cell (12) is made of different materials at least in part with support unit (14).
3. according to the percussion mechanism of claim 1 or 2, it is characterized in that: this elementary cell (12) has invariable cross section along a principal spread direction (18).
4. according to one percussion mechanism in the above claim, it is characterized in that: this support unit (14) has at least one uncoupling device (20).
5. at least according to the percussion mechanism of claim 4, it is characterized in that: this uncoupling device (20) has the element of at least one caoutchouc elasticity.
6. at least according to the percussion mechanism of claim 4, it is characterized in that: this uncoupling device (20) is arranged around elementary cell (12) on bow-shaped section form ground at least.
7. at least according to the percussion mechanism of claim 4, it is characterized in that: this support unit (14) also has another bracing or strutting arrangement (22) at least except uncoupling device (20).
8. at least according to the percussion mechanism of claim 7, it is characterized in that: this another bracing or strutting arrangement (22) is arranged around elementary cell (12) on bow-shaped section form ground at least.
9. percussion mechanism at least according to Claim 8, it is characterized in that: this uncoupling device (20) is set on this another bracing or strutting arrangement (22).
10. hand held power machine (10), especially jump bit, hammer drill and/or hammer machine is characterized in that: it has in the above claim of basis one percussion mechanism.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102006046472.9 | 2006-09-29 | ||
| DE200610046472 DE102006046472A1 (en) | 2006-09-29 | 2006-09-29 | Hitting device for a drill hammer or chisel hammer comprises an impact bolt unit consisting of a base unit and a support unit separated from each other |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101152712A true CN101152712A (en) | 2008-04-02 |
Family
ID=39134383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2007101618872A Pending CN101152712A (en) | 2006-09-29 | 2007-09-27 | Impacting device |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101152712A (en) |
| DE (1) | DE102006046472A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108406692A (en) * | 2018-05-10 | 2018-08-17 | 无锡市天利流体科技有限公司 | Pneumatic knocking hammer |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102007056531A1 (en) * | 2007-11-23 | 2009-05-28 | Hilti Aktiengesellschaft | Hand tool machine with impact tool holder and associated tool |
| DE102009027422A1 (en) | 2009-07-02 | 2011-01-05 | Robert Bosch Gmbh | Device for reducing and / or compensating vibrations, in particular for a handheld power tool and for use in handheld power tools |
| DE102009027423A1 (en) | 2009-07-02 | 2011-01-05 | Robert Bosch Gmbh | Device for reducing and / or compensating vibrations, in particular for a handheld power tool and for use in handheld power tools |
| EP3822030A1 (en) * | 2019-11-15 | 2021-05-19 | Hilti Aktiengesellschaft | Drill and/or chisel hammer with impact device assembly |
-
2006
- 2006-09-29 DE DE200610046472 patent/DE102006046472A1/en not_active Withdrawn
-
2007
- 2007-09-27 CN CNA2007101618872A patent/CN101152712A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108406692A (en) * | 2018-05-10 | 2018-08-17 | 无锡市天利流体科技有限公司 | Pneumatic knocking hammer |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102006046472A1 (en) | 2008-04-03 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20080402 |