CN101537511A - Portable machine tool with striker capture device and/or striker damping device - Google Patents
Portable machine tool with striker capture device and/or striker damping device Download PDFInfo
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- CN101537511A CN101537511A CN200910128020A CN200910128020A CN101537511A CN 101537511 A CN101537511 A CN 101537511A CN 200910128020 A CN200910128020 A CN 200910128020A CN 200910128020 A CN200910128020 A CN 200910128020A CN 101537511 A CN101537511 A CN 101537511A
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- ram
- toolroom machine
- load running
- running position
- cutter
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- 238000013016 damping Methods 0.000 title claims description 42
- 230000007246 mechanism Effects 0.000 claims abstract description 30
- 230000033001 locomotion Effects 0.000 claims abstract description 15
- 230000009183 running Effects 0.000 claims description 81
- 230000015572 biosynthetic process Effects 0.000 claims 1
- 238000009527 percussion Methods 0.000 abstract description 8
- 101100328887 Caenorhabditis elegans col-34 gene Proteins 0.000 description 32
- 230000003116 impacting effect Effects 0.000 description 14
- 229910000831 Steel Inorganic materials 0.000 description 7
- 239000010959 steel Substances 0.000 description 7
- 230000005284 excitation Effects 0.000 description 5
- 230000010355 oscillation Effects 0.000 description 3
- 230000001133 acceleration Effects 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 230000003044 adaptive effect Effects 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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Classifications
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- 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
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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
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
- B25D17/24—Damping the reaction force
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- 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
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- 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
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- 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
- B25D2250/191—Ram catchers for stopping the ram when entering idling mode
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- 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
- B25D2250/321—Use of balls
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
Abstract
A portable machine tool, such as a rotary and/or percussion hammer, comprises a percussion mechanism that has an axially movable striker 4 driven via an air spring, and an axially movable percussion pin 8. The percussion pin is arranged between the striker 4 and a tool 12 to transmit percussive impulses of the striker 4 to the tool when the tool is pressed against an abutment, and has a device (68, 70) for positioning and holding the striker (4) in a defined idling position when the machine tool is idling. The device (68, 70) for positioning and holding the striker comprises means (70) for frictionally and/or positively fixing the striker (4) in the idling position; and/or for braking the movement of the striker (4) before the idling position is reached.
Description
Technical field
The present invention relates to portable toolroom machine, especially hammer drill or jump bit according to the preamble of claim 1 and 2.
Background technology
Traditional hammer drill or percussive drill have a beater mechanism that comprises the ram that drives by air spring, this ram can be in a ram pilot unit in impact work reciprocally motion and being located on the impact bolt or pestle between this ram and the cutter with one of big energy impact thus so that by impact bolt or pestle with impulse be delivered to one in the cutter receiving unit that is installed in hammer drill or percussive drill boring or cutter pricker cutter on and by this cutter continue to be delivered to want processed workpiece, as on the body of wall.Cutter is maintained in the operating position by a thrust that is applied on hammer drill or the percussive drill by the operator in impact work, and cutter is pressed on the workpiece with its leading section in this operating position, and the end extend in the tracks of impacting bolt thereafter.When hammer drill or percussive drill is pulled or cutter can not find after resistance, for example workpiece penetrated, cutter breaks away from and the contacting of impact bolt.Be called as no-load running in order to distinguish over this state of impact work, be delivered on the cutter by impacting bolt because no longer include impulse.Ram should reach fast and be moved to reliably in the definite no-load running position in no-load running, avoiding ram to move back and forth unceasingly, because cause the damage that causes by overload of hammer drill or percussive drill on the one hand and will be felt the inferior of quality by many users on the other hand by so-called no-load percussion.For fear of no-load percussion, traditional hammer drill or percussive drill have a device that is commonly referred to the no-load running control device, can make ram in no-load running time location and remain in the no-load running position by this device.The basic principle of this no-load running control is: ram in the ram pilot unit forward, promptly on the direction of cutter, moving to such an extent that surpass its impact position in the impact work, no-load running hole in the ram pilot unit is released, by these no-load running holes of ram back, air is entered the inside of ram pilot unit by peripheral environment.Make the air spring that is positioned at the there lose the ability of its suction ram thus.The flexible program of no-load running control device is as the ram control device, and management and control system device or sleeve control device are by known.
Yet experience points out, for location in the no-load running position and keep ram so that it no longer can be aspirated by air spring, sets up in the ram pilot unit that to put the no-load running hole always not enough.This reason is that ram is impacting on the bolt or at a bump that is located on the damping unit that is used for the motion of damping ram in the ram pilot unit and can make it be moved back into again above the no-load running hole to after-acceleration by it.Ram is sucked again thus, and is that this causes damaging hammer drill or percussive drill with foregoing mode and be regarded as the low no-load percussion of quality.
Summary of the invention
Set out by above, task of the present invention is, split the toolroom machine of the described type of initial portion and do following improvement, promptly, this toolroom machine has prevented the suction of ram when toolroom machine no-load running reliably and/or has reduced kinergety before striking of ram impacted bolt or damping unit, so that avoid ram to cross the resilience of no-load running position thus.
First this task of invention scheme according to the present invention solves in this wise: be used for locating and keep the device of ram to comprise being used for rub sealed and/or shape of ram is fixed on the mechanism of no-load running position sealedly.
The basic design of this invention scheme is, when no-load running, mechanically be locked in the no-load running position, make this ram under the situation of after-acceleration, still remained in the no-load running position regularly and can not cross this ground, no-load running position and on pumping direction, move backward by the ram that fixedly makes sealed and/or that shape is sealed that rubs.Can be migrated on brill-jump bit in the same manner according to the program of the present invention.Be used in addition ram installation and the dismounting that sealed and/or shape is fixed on the mechanism of no-load running position sealedly that rub can be realized relatively simply.Especially also can come adaptive this mechanism without difficulty like this, make the required starting characteristic that when carrying out the transition in the impact work again, can guarantee ram by no-load running.
One second invention scheme proposes, and is used to locate and keeps the device of ram to comprise that the motion that is used for ram arrives the mechanism that braked in the past the no-load running position.The basic design of this invention scheme is, travelling forward of ram braked in the past reaching the no-load running position, so that the damping ram is impacting bump on the bolt and Impact energy and the resilient energy that reduces ram thus thus.Be used for braking the mechanism of the motion of ram in the past and preferably the ram mechanism that sealed and/or shape is fixed on the no-load running position that rubs being constituted by also being used for sealedly reaching the no-load running position.
According to other configuration of hand held power machine of the present invention also comprise one be located between ram and the cutter, can axially movable impact bolt.Reached the greater flexibility on the configuration of powerful beater mechanism thus.
According to a preferred configuration of the present invention, be used for ram rub that sealed and/or shape is fixed on the no-load running position sealedly and/or be used for to the motion of ram arrive the mechanism of braking in the past the no-load running position be arranged in this wise a guiding ram the ram pilot unit vertically, make these mechanisms in impact work, not contact or cooperate with ram.
Another preferred configuration of the present invention proposes, be used for rubbing ram sealed and/or shape is fixed sealedly and/or the mechanism that is used to brake the motion of ram comprises at least one locking and/or damping unit, this locking and/or damping unit preferably extend into the inside of ram pilot unit and rub sealed with ram and/or shape forms sealedly and cooperates.It is just enough that a single locking and/or damping unit are set in principle, preferably uses a plurality of lockings and/or damping unit, and they form with the periphery of mutually the same angle intervals and ram and cooperate, so as to make ram in the ram pilot unit calmly in.
Be used for rubbing ram sealed and/or shape is fixed sealedly and/or the mechanism that is used to brake the motion of ram preferably also comprises the spring unit that at least one is resiliently deformable, this spring unit conform with the destination in impact work not by load, and when no-load running, cooperate and flexibly distortion by ram is sealed with the friction of one or more lockings and/or damping unit and/or shape is sealed, wherein, described spring unit is pressed on the ram one or more lockings and/or damping unit by its flexible reset force.
The cinclides that described at least one locking and/or damping unit pass the ram pilot unit in an advantageous manner extends to the inside of this ram pilot unit, here this locking and/or damping unit conform with the destination and are preferably formed by the inner end of rounding and ram with one and cooperate, so that maintain or brake this ram, spring unit then is advantageously provided on the outside of ram pilot unit and act on described at least one locking and/or the damping unit, so that the inner end in ram pilot unit inside of this locking and/or damping unit is pressed on the ram.
One or more lockings and/or damping unit and conform with the parts that spring unit that the destination is configured to open or closed turn can be designed to the form of parts separately or be designed to one.
If sealed the cooperating of design shape between described at least one locking and/or damping unit and ram, then this conforms with the destination and realizes like this: one or each locking and/or damping unit are coupled in the no-load running position in lock groove ram, relative, this lock groove be preferably configured as on the ram one around groove.
Because just can avoid this ram to be aspirated in the no-load running position, therefore also can cancel additional no-load running control device in principle by air spring by ram mechanically is fixed on.But a preferred configuration of the present invention proposes, and also has the no-load running control device except mechanically fixing, and this no-load running control device comprises a no-load running hole that is communicated with air spring in the no-load running position of ram.
Description of drawings
Below describe the present invention in detail by in the accompanying drawings some embodiment of expression.Accompanying drawing is represented:
Fig. 1: the longitudinal section of the hammer drill in impact work or the parts of jump bit;
Fig. 2: with the corresponding longitudinal section of Fig. 1, but in the no-load running of hammer drill or jump bit;
Fig. 3: the zoomed-in view of section III among Fig. 2 the figure shows the striker capture device that is used for ram mechanically is fixed on the no-load running position;
Fig. 4: along the cross section of Fig. 3 center line IV-IV,
Fig. 5:, but have another striker capture device with the similar view of Fig. 3;
Fig. 6: along the cross section of the line VI-VI of Fig. 5,
Fig. 7:, but have another striker capture device with Fig. 3 and 5 similar views;
Fig. 8: along the cross section of the line VIII-VIII of Fig. 7.
The specific embodiment
Hammer drill or the jump bit of only partly representing comprises a hammer pipe 2 that extends microsclerly in the drawings, and this hammer pipe has: the back section 6 guiding, that have a big internal diameter as the ram 4 of the beater mechanism (not shown) of hammer drill or jump bit; One as the centre portion 10 guiding, that have slightly smaller internal diameter of the impact bolt 8 of this beater mechanism or pestle and one as the cutter receiving unit of drilling tool or cutter pricker cutter 12, have a front section of the internal diameter of also wanting smaller.Ram 4, impact bolt 8 and boring or the such sizing of cutter pricker cutter 12 each quilt make their can be directed to axial motion in the affiliated section 6,10 or 14 of hammer pipe 2.
As the most clearly expression among Fig. 3 to 8, ram 4 has a cylindrical outer circumference surface 16, and the external diameter of this periphery adapts to the internal diameter of the back section 6 of hammer pipe 4.Offer the circumferential groove 18,20,22 that a plurality of distance ground that separate each other in the axial direction are provided with in periphery 16, one of them groove 22 is used to receive an O RunddichtringO 24, and the sealing circle abuts on section 6, the adjacent cylindrical inner face 26 hermetically.The adjacent leading section 28 with impacting bolt 8 of ram 4 diminishes.
In boring or the cutter impact work of pricker cutter 12, promptly under the situation that beater mechanism is connected, be pressed in the support by the operator at hammer drill or jump bit, in the time of for example on body of wall or the workpiece, 4 reciprocating motions in the section 6 of hammer pipe 2 of ram.This motion of ram 4 produces by an excitation piston (not shown) of beater mechanism, and a drive motor (not shown) of hammer drill or jump bit axially moves back and forth this excitation piston.The axially reciprocating of excitation piston is located at by one that the air spring (not shown) between this excitation piston and ram 4 is delivered on the ram 4 in the hammer pipe 2.In other words, the axially reciprocating by the excitation piston produces pressure oscillation in air spring, and this pressure oscillation causes the corresponding axial motion that reaches forward backward of ram 4.
For the axially-movable of bolt 8 is impacted in damping, damping unit 50 is installed in hammer by fixed-site ground and manages in the leading section of 2 back section 6.This damping unit 50 one after the other is arranged on damped ring 52,54,56,58 in the hammer pipe 2, that made by elastomeric material before and after axially going up and is formed by a plurality of, and they are kept regularly by a back-up ring 60.The task that damping unit 50 has is: when impacting bolt 8 and reach thereafter the final position, damping should be impacted the resilience of bolt, and in this final position, a resilience that extends back of impacting on the pars intermedia 30 of bolt 8 is takeed on the 62 backstops damped ring 52 up front.The cylindrical rearward end part 34 of impacting bolt 8 extends through the hole 64 that a damped circle 52,54,56,58 surrounds.
When hammer drill or jump bit no-load running, promptly retract maybe when boring or cutter pricker cutter 12 again can not find resistance as hammer drill or the jump bit person of being operated, then the pressure by described air spring correspondingly moves in the preceding final position ram 4, impact bolt 8 and cutter 12, as shown in Figure 2, in this position, the rearward end of boring or cutter pricker cutter 12 no longer with impact bolt 8 and be in and contact, this impacts bolt abuts in its preceding no-load running shoulder 46 and hammers into shape on the annular shoulder 48 of managing 2 front section 14 and the complementation between the centre portion 10.Ram 4 is arranged in its no-load running position of determining when no-load running, in this no-load running position, this ram abuts on the last damped ring 58 of damping unit 50 with its shoulder that extends forward 49.
In this position, should there be impulse to be applied to again and impacts on the bolt 8, because this can cause the damage of hammer drill or jump bit on the one hand and can make the operator feel the inferior of quality on the other hand by ram 4.
For this purpose, this hammer drill or jump bit have so-called no-load running control device in known manner, in illustrated form of implementation, this no-load running control device is made up of a plurality of no-load runnings hole 68 in the hammer pipe 2, by these no-load running holes the inside of hammer pipe 2 is communicated with surrounding environment.The axial location of these no-load running holes 68 in hammer pipe 2 selected in this wise, promptly, these no-load running holes always are positioned at the back of O RunddichtringO 24 in the no-load running position of ram 4, as shown in Figure 2, and these no-load running holes always are positioned at the front of O RunddichtringO 24 in impact work, as shown in fig. 1.Therefore be different from and impact the place of working, air spring is communicated with these no-load running holes 68 in the no-load running position of ram 4, eliminated the pressure oscillation in the air spring thus, this will cause again: air spring loses the function of its suction ram 4, even also no longer reciprocating motion of this ram when beater mechanism is connected thus.
But experience shows, ram 4 can obtain an acceleration that points to backward owing to the bump on impact bolt 8 or on damping unit 50 when moving to the no-load running position, this acceleration is enough big, makes O RunddichtringO 24 cross no-load running hole 68 again and moves backward.Because this causes the suction again of ram 4 and causes undesirable no-load percussion thus, so shown hammer drill or jump bit also have a striker capture device and/or striker damping device 70 except that the no-load running control device.This striker capture device and/or striker damping device 70 is used on the one hand: capture by mechanism in no-load running position shown in Figure 2 and keep ram 4 regularly, although make to have and act on screen resilience on this ram by impacting bolt 8, this ram also no longer can be backward by moving out in the no-load running position, and also has on the other hand effect, promptly ram travelling forward before reaching described no-load running position braked, so that this ram of damping acts on screen resilience on this ram by impacting bolt impacting the bump on the bolt and therefore also reduce thus.
In the form of implementation shown in Fig. 1 to 4, striker capture device and/or striker damping device 70 are made up of the turn 72 that the outside at hammer pipe 2 surrounds this hammer pipe 2 in a circumferential direction, mold four cylindrical protrusions 74 to inner process at interval with preferred angle same on the inner peripheral surface of this turn, the hole 76 that they pass a complementation in the section 6 of hammer pipe 2 respectively extend into the inside of this hammer pipe.Turn 72 is selected in this wise along the axial location of hammer pipe 2, make that these projectioies 74 inwardly do not stretch into the inside of hammering pipe 2 into shape contiguously with ram 4 in the impact work of hammer drill or jump bit, as shown in fig. 1, but in the travelling forward in its no-load running position of ram 4, these projectioies are transported on the cylindrical circumference face 78 of ram 4.As the most clearly expression in Fig. 4, the external diameter of periphery 78 greater than projection relative in couples on the diameter 74 by the distance between the end 80 of rounding, these projectioies 74 are pressed under the situation that turn 72 of load flexibly expand in advance radially outwardly by ram 4 on the one hand thus, and the elastic reset power of the turn 72 expanded by quilt of these projectioies is pressed on the periphery 78 of ram 4 by the inner end 75 of rounding with them on the other hand.This causes: ram 4 is by at first being braked with sealed the cooperating of the friction of striker capture device and/or striker damping device 70 and then by locking or remain on regularly in the described no-load running position.
In striker capture device in Fig. 5 and 6 and/or the striker damping device 70, hammer pipe 2 has two round taper holes relative on diameter 82 on the position of four cylindrical holes 76, in these round taper holes, insert a steel ball 84 in this wise respectively, make these steel balls inwardly extend into a bit of distance in inside of hammer pipe 2.These two steel balls 84 by one be in spring under preloading, inwardly pressed around the lateral surface ground of hammer pipe 2 ring spring 86 setting, C shape cross section (Fig. 6).For ring spring 86 is fixed in a circumferential direction, this ring spring has two protuberances 88 that are used to receive steel ball 84, and these protuberances also are set up with the angle intervals of preferred 180 degree as steel ball 84.In this form of implementation, ram 4 is provided with a shallow lock groove of leaving or circumferential groove 90 in columniform periphery 78, this lock groove or circumferential groove are preferably just relative with steel ball 84 and put in the no-load running position, make not only rub sealed ground but also shape of these steel balls 84 cooperate with ram 4 sealedly.
In the striker capture device and/or striker damping device 70 of Fig. 7 and 8, only be provided with a single columniform pin 92, this pin passes the inside that a corresponding hole 94 in the section 6 of hammer pipe 2 extend into this hammer pipe, that here should sell is pressed by a helical coil 98 around hammer pipe 2 by the inner end 96 of rounding, thereby to form friction sealed and shape is sealed cooperates with lock groove of ram 4 or circumferential groove 100, and this lock groove or circumferential groove are relative with pin 92 and put in the no-load running position of ram 4.The outer end 102 that pin 92 has an expansion, this outer end are provided with a dead slot 104 that is used to receive the turn 98 of circular cross section.Turn 72 and 86 as striker capture device among Fig. 1 to 6 and/or striker damping device 70, when ram 4 moves forward in the described no-load running position and pin 92 and lock groove or circumferential groove 100 form when cooperating, the turn 98 of striker capture device among Fig. 7 and 8 and/or striker damping device 70 is also flexibly expanded.
When in the no-load running position shown in Fig. 2, when boring or cutter pricker cutter 12 are crushed in the support by the operator again, this boring or cutter pricker cutter move backward in the inside of cutter receiving unit 14, and the impact bolt 8 in the centre portion 10 of hammer pipe 2 is moved backward.Impacting moving of bolt 8 causes again: ram 4 is sealed with the friction between striker capture device and/or the striker damping device 70 and/or shape is sealed cooperate be disengaged and ram 4 itself mobile so far away backward, be positioned at again up to O RunddichtringO 24 till the back in no-load running hole 68.This causes when beater mechanism is connected: this hammer drill or jump bit begin impact work again.
Claims (14)
1. portable toolroom machine, especially hammer drill and/or jump bit, has a beater mechanism, this beater mechanism comprises one by the axially driven movingly ram of an air spring, wherein, when cutter in the impact work at this toolroom machine is pressed in the support, the impulse of this ram is passed on this cutter, this toolroom machine also has one and is used for making this ram location and remains on the device of a no-load running position of determining when this toolroom machine is in no-load running, it is characterized in that: this is used for the location and keeps the device of this ram (4) to comprise being used to make this ram (4) friction and/or shape to be fixed on the mechanism (70) of described no-load running position sealedly.
2. portable toolroom machine, especially according to the toolroom machine of claim 1, especially hammer drill or jump bit, has a beater mechanism, this beater mechanism comprises one by the axially driven movingly ram of an air spring, wherein, when cutter in the impact work at this toolroom machine is pressed in the support, the impulse of this ram is passed on this cutter, this toolroom machine also has one and is used for making this ram location and remains on the device of a no-load running position of determining when this toolroom machine is in no-load running, it is characterized in that: describedly be used for the location and keep the device of described ram (4) to comprise being used for mechanism (70) that the motion before reaching described no-load running position of described ram (4) is braked.
3. according to the toolroom machine of claim 1 or 2, it is characterized in that: described beater mechanism comprises that also one is arranged on movable impact bolt between a described ram and the cutter, axial.
4. according to the toolroom machine of one of claim 1 to 3, it is characterized in that: described mechanism (70) comprises at least one locking and/or damping unit (74,84,92), in described no-load running position or before described no-load running position is arrived, this locking and/or damping unit form with described ram (4) and cooperate.
5. according to the toolroom machine of claim 4, it is characterized in that: described locking and/or damping unit (74,84,92) stretch into the inside of a ram pilot unit (2,6) and cooperate with described ram (4) friction and/or shape sealedly.
6. according to the toolroom machine of claim 5, it is characterized in that: described locking and/or damping unit (74,84,92) pass described ram pilot unit (2,6) from the outside a cinclides (76,82,94) stretches into the inside of this ram pilot unit.
7. according to the toolroom machine of claim 5 or 6, it is characterized in that: described locking and/or damping unit (74,84,92) described relatively ram pilot units (2,6) are movable diametrically.
8. according to the toolroom machine of one of claim 2 to 7, it is characterized in that: described locking and/or damping unit (84,92) in described no-load running position, be coupled to described ram (4), one be positioned in the locking recess (90,100) on opposite.
9. toolroom machine according to Claim 8 is characterized in that: described locking recess be one on the described ram (4) around groove (90,100).
10. according to the toolroom machine of one of above claim, it is characterized in that: described mechanism (70) comprises at least one spring unit that is resiliently deformable (72,86,98).
11. the toolroom machine according to claim 10 is characterized in that: described spring unit (72,86,98) is set at the outside of described ram pilot unit (2,6).
12. the toolroom machine according to claim 10 or 11 is characterized in that: described spring unit (72,86,98) surrounds this ram pilot unit at least in part on the outside of described ram pilot unit (2,6).
13. the toolroom machine according to one of above claim is characterized in that: describedly be used for friction and/or shape and fix described ram (4) and/or be used to brake described ram (4) and do not contact in described impact work sealedly with described ram (4) formation in the mechanism (70) that reaches the motion before the described no-load running position.
14. toolroom machine according to one of above claim, it is characterized in that: described being used for locatees and keeps the device (68,70) of described ram (4) also to comprise the no-load running hole (68) that at least one is communicated with described air spring in the no-load running position of described ram (4).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008000727.7 | 2008-03-18 | ||
| DE200810000727 DE102008000727A1 (en) | 2008-03-18 | 2008-03-18 | Portable machine tool, in particular drilling or percussion hammer, with a club catching device and / or racket damping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101537511A true CN101537511A (en) | 2009-09-23 |
Family
ID=40446088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910128020A Pending CN101537511A (en) | 2008-03-18 | 2009-03-17 | Portable machine tool with striker capture device and/or striker damping device |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN101537511A (en) |
| DE (1) | DE102008000727A1 (en) |
| GB (1) | GB2458523B (en) |
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| CN102862149A (en) * | 2011-07-05 | 2013-01-09 | 罗伯特·博世有限公司 | Impact mechanism device |
| CN104249334A (en) * | 2013-06-27 | 2014-12-31 | 罗伯特·博世有限公司 | Hand-held power tool device |
| CN108161308A (en) * | 2018-01-10 | 2018-06-15 | 深圳市金洲精工科技股份有限公司 | It is a kind of to prevent from welding the anti-alignment device expected and alignment method |
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| DE102010029915A1 (en) | 2010-06-10 | 2011-12-15 | Hilti Aktiengesellschaft | Machine tool and control method |
| DE102010029917A1 (en) | 2010-06-10 | 2011-12-15 | Hilti Aktiengesellschaft | machine tool |
| DE102012220886A1 (en) | 2012-11-15 | 2014-05-15 | Hilti Aktiengesellschaft | machine tool |
| DE102013211242A1 (en) | 2013-06-17 | 2014-12-18 | Robert Bosch Gmbh | Impact control and / or regulating device |
| CN105364123A (en) * | 2014-09-01 | 2016-03-02 | 云南飞隆劳尔设备有限公司 | Portable drilling machine drilling small and long holes |
| EP3822030A1 (en) * | 2019-11-15 | 2021-05-19 | Hilti Aktiengesellschaft | Drill and/or chisel hammer with impact device assembly |
| WO2021194737A1 (en) * | 2020-03-23 | 2021-09-30 | Milwaukee Electric Tool Corporation | Rotary hammer |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3335795A1 (en) * | 1983-10-01 | 1985-04-18 | Black & Decker Inc., Newark, Del. | DRILLING HAMMER |
| DE3633675A1 (en) * | 1986-10-03 | 1988-04-14 | Hilti Ag | DRILLING HAMMER WITH STRIKE |
| DE3634282A1 (en) * | 1986-10-08 | 1988-04-21 | Hilti Ag | Power-driven hammer drill |
| DE10122820A1 (en) * | 2001-05-11 | 2002-11-21 | Bosch Gmbh Robert | Hand tool, especially hammer drill and/or hammer chisel, has tool guide element that is axially movable with respect to machine housing |
| GB2410212B (en) * | 2001-09-17 | 2006-02-08 | Milwaukee Electric Tool Corp | Rotary hammer |
| DE102006000533A1 (en) * | 2006-12-18 | 2008-06-19 | Hilti Ag | Hand-held tool with pneumatic hammer action, for chiseling or drilling, includes loose impact bush between external collars on header component |
| BG66156B1 (en) * | 2007-09-21 | 2011-09-30 | "Спарки Елтос" АД | Percussive mechanism for portable electric percussion drilling machines |
-
2008
- 2008-03-18 DE DE200810000727 patent/DE102008000727A1/en not_active Withdrawn
-
2009
- 2009-01-20 GB GB0900936A patent/GB2458523B/en not_active Expired - Fee Related
- 2009-03-17 CN CN200910128020A patent/CN101537511A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102267130A (en) * | 2010-06-02 | 2011-12-07 | 喜利得股份公司 | Dust repelling tool brake, tool insert part, tool mount, machine tool |
| CN102862149A (en) * | 2011-07-05 | 2013-01-09 | 罗伯特·博世有限公司 | Impact mechanism device |
| CN104249334A (en) * | 2013-06-27 | 2014-12-31 | 罗伯特·博世有限公司 | Hand-held power tool device |
| CN104249334B (en) * | 2013-06-27 | 2018-02-27 | 罗伯特·博世有限公司 | Hand machine tool striking mechanism |
| CN108161308A (en) * | 2018-01-10 | 2018-06-15 | 深圳市金洲精工科技股份有限公司 | It is a kind of to prevent from welding the anti-alignment device expected and alignment method |
| CN108161308B (en) * | 2018-01-10 | 2024-03-12 | 深圳市金洲精工科技股份有限公司 | Alignment device and alignment method for preventing welding material from being reversed |
Also Published As
| Publication number | Publication date |
|---|---|
| GB2458523A (en) | 2009-09-23 |
| DE102008000727A1 (en) | 2009-09-24 |
| GB0900936D0 (en) | 2009-03-04 |
| GB2458523B (en) | 2012-06-06 |
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Application publication date: 20090923 |