CN104249334A - Hand-held power tool device - Google Patents
Hand-held power tool device Download PDFInfo
- Publication number
- CN104249334A CN104249334A CN201410293699.5A CN201410293699A CN104249334A CN 104249334 A CN104249334 A CN 104249334A CN 201410293699 A CN201410293699 A CN 201410293699A CN 104249334 A CN104249334 A CN 104249334A
- Authority
- CN
- China
- Prior art keywords
- relieving ring
- machine tool
- striking mechanism
- hand machine
- tool striking
- 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.)
- Granted
Links
Classifications
-
- 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
- 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
- B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
- B25D2250/065—Details regarding assembling of the tool
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The invention discloses a hand-held power tool device comprising at least one hammer tube (10), which is provided with at least a groove (12). The hand-held power tool device is also provided with an insurance ring (14) disposed in the groove (12), and the insurance ring (14) is used to form a stopping part of the hammer tube (10) axially.The insurance ring (14) can be used to encircle the hammer tube (10) completely.
Description
Technical field
The present invention relates to a kind of hand machine tool striking mechanism and a kind of hand held power machine with hand machine tool striking mechanism.
Background technology
A kind of hand machine tool striking mechanism has been proposed, it has at least one hammer pipe, at least one hammer pipe described has at least one groove, described hand machine tool striking mechanism also has at least one relieving ring be arranged in described groove, and at least one relieving ring described arranges the axial stop for constructing described hammer pipe.
Summary of the invention
The present invention is by a kind of hand machine tool striking mechanism, it has at least one hammer pipe, at least one hammer pipe described has at least one groove, described hand machine tool striking mechanism also has at least one relieving ring be arranged in described groove, and at least one relieving ring described arranges the axial stop for constructing described hammer pipe.
Propose as follows: described relieving ring surrounds described hammer pipe completely." hand machine tool striking mechanism " is especially appreciated that the beater mechanism of a hand-held tool at this, and wherein, described hand-held tool is especially configured to the machine of a processing work at this, is advantageously still configured to bore hammer and/or jump bit." hammer pipe " is especially appreciated that such pipe, and it is arranged for making the impulse member of a beater mechanism can move supported along a main operative orientation.Preferably, in described hammer pipe, can set up control air pressure under at least one running status, this control air pressure accelerates described impulse member under at least one running status." main operative orientation " is especially construed as such direction, and in the direction, operator to move described hand machine tool striking mechanism in the mode arranged in a working motion.Preferably, described main operative orientation is parallel to the impact direction orientation of described impulse member." groove " is especially appreciated that a kind of otch at this, in this otch inserts described hammer pipe periphery from outward and this otch circumferentially extend in direction.At this, described groove preferably around and disposablely in circumferential direction surround described hammer completely and manage." relieving ring " is appreciated that a kind of machine element at this, and this machine element arranges for element at an axle, the insurance of position vertically on especially described hammer pipe, and wherein, described relieving ring is arranged in a groove in order to its location." axial stop of hammer pipe " is especially appreciated that such stopper section at this, and this stopper section is hammered into shape within Guan Yi housing along an axial direction described in a maximum position Shangdi gauge, the motion vertically especially within a beater mechanism housing." surround completely " and be especially appreciated that at this: described relieving ring is vertically in the plane in the medial axis of described hammer pipe one, at least around the whole periphery of this hammer pipe, namely at least surround described hammer pipe around 360 degree.Can construct a particularly advantageous axle collar on the periphery of described hammer pipe thus, this axle collar forms the built-in function element of an axial plain bearing.By this, according to design of the present invention, can to realize on described hammer Guan Yi beater mechanism housing particularly advantageous supports vertically and can particularly advantageously component is few and construct described hand machine tool striking mechanism inexpensively.
In addition propose: described relieving ring is more than 360 degree holding described hammer pipe." more than 360 degree holding " is especially appreciated that at this, described relieving ring around described hammer pipe hold at least 361 degree, preferably more than 400 degree and in a particularly advantageous design more than 700 degree.Can realize described hammer pipe thus to be held by the particularly advantageous of described relieving ring, described relieving ring is created on the particularly advantageously high confining force in described groove thus.
In addition propose: described relieving ring is configured to fuse cutout ring." fuse cutout ring " is especially appreciated that such relieving ring at this, and this relieving ring is more than 360 degree surrounding an element and forming multiple spiraling, and these spiral in axial direction against each other.At this, described fuse cutout ring is preferably formed by the round steel of rolling and winding, and described relieving ring does not advantageously have the seamed edge and burr that stretch out thus, but has seamed edge radius.Can particularly advantageously construct described relieving ring thus.
In addition propose: described relieving ring has at least two and spirals." spiral " and especially should be interpreted as the flexible road of a geometry spiral at this." at least two spiral " especially should be understood to: described relieving ring have at least one spiral completely and at least one in addition started spiral, it preferably completes at least 50% ground.The relieving ring of fuse cutout ring is configured to described in can particularly advantageously constructing thus.
In addition propose: described relieving ring constructs at least one stop surface and/or thrust surface." stop surface and/or thrust surface " is especially appreciated that such face at this, this face is arranged for constructing an axial stop and having particularly advantageous sliding properties, the torsion of the described relieving ring that can carry out having described stop surface and/or thrust surface with little friction thus another element especially backstop dish relatively.The dish that the component can advantageously cancelling other thus especially adds, these dishes constitute described stop surface and/or thrust surface, can construct described hand-held tool beater mechanism less by component especially thus.
In addition propose: described relieving ring has coating at least in part." coating " is especially appreciated that such layer be applied on the especially described relieving ring of a component at this, this layer by positive, material connection that is sealed or adhesion type is connected with the surface of described relieving ring." at least in part there is coating " to be especially appreciated that at this: on the subregion that described coating is at least arranged in described relieving ring and this be at least arranged in described relieving ring constitute stop surface and or thrust surface those faces on, wherein, described relieving ring advantageously also can have described coating over its entire surface.Particularly advantageously can construct the sliding properties of described relieving ring thus and therefore especially desirably reduce wearing and tearing and noise generation at run duration.
In addition propose: described relieving ring has one and to spiral direction, this direction of spiraling extends along the main rotation of described hammer pipe and load direction in the assembled state." direction of spiraling " especially should be understood to a direction at this, the end orientation in the direction of described relieving ring.Especially particularly advantageous sliding relation can be realized between a backstop dish thus at described relieving ring and another element.In addition especially advantageously can realize thus: described relieving ring produces following trend at run duration, that is, to be pulled in described groove and particularly advantageously to clamp in the cell therefrom.
In addition propose: the groove at described relieving ring place has such radius, and they are greater than 0.5 millimeter." radius of groove " is especially appreciated that the radius between side direction wall portion and bottom land at this.Can advantageously construct described groove thus, especially in notch effect, particularly advantageously can construct described hammer pipe thus.
In addition propose: described relieving ring is connected with described groove by means of press-fit.Can make described relieving ring particularly advantageously thus and be connected with described hammer pipe securely.
In the case, above-mentioned application and embodiment should be not limited to according to hand machine tool striking mechanism of the present invention.Especially in order to meet functional mode described herein, a discrete component being different from other quantity of quantity described here, component and unit can be had according to hand machine tool striking mechanism of the present invention.
Accompanying drawing explanation
Accompanying drawing
Other advantage provides from accompanying drawing below describes.Illustrate a kind of embodiment of the present invention in the accompanying drawings.Accompanying drawing, description and claims contain a large amount of Feature Combinations.These features also reasonably can be considered separately and sum up other combination aptly by those skilled in the art.
Wherein:
Fig. 1 shows a hand held power machine, its have only shown in schematic simplified according to hand machine tool striking mechanism of the present invention;
Fig. 2 shows the cross sectional view according to hand machine tool striking mechanism of the present invention; And
Fig. 3 shows the schematic diagram of the relieving ring according to hand machine tool striking mechanism of the present invention.
Detailed description of the invention
Fig. 1 shows a hand held power machine 28, its have one in FIG shown in dotted line according to hand machine tool striking mechanism of the present invention.
Fig. 2 shows the cross sectional view of the part through hand machine tool striking mechanism according to the present invention.Region that the part shown in figure 2 of described hand machine tool striking mechanism is a front portion of described hand machine tool striking mechanism, the means accepts portion 38 that faces described hand held power machine 28.Described hand machine tool striking mechanism comprises a beater mechanism housing 40, and it surrounds described hand machine tool striking mechanism at least in part.In order to produce driving moment and in order to produce shock pulse by means of described hand machine tool striking mechanism, described hand held power machine 28 has a driver element be not shown specifically.By a driven unit, the driving moment of driver element is passed on described hand machine tool striking mechanism to produce shock pulse.This hand machine tool striking mechanism comprises a hammer pipe 10.Described hammer pipe 10 hollow posts bodily form ground structure.In order to produce a pressure pulse within described hammer pipe 10, described hand machine tool striking mechanism has a piston be not shown specifically.Described piston is arranged and is led within described hammer pipe 10.By the vertically motion of described piston in described hammer pipe 10, described piston, within described hammer pipe 10, produces a pressure pulse by the compression gas be in described hammer pipe 10.In order to receive and continue to guide described pressure pulse, described hand machine tool striking mechanism has an impact pin 42.Described impact pin 42 is arranged in the described front area of described hand machine tool striking mechanism within described hammer pipe 10.Described hand machine tool striking mechanism has a tool retainer 44, and this tool retainer constitutes the means accepts portion 38 of described hand held power machine 28.Described tool retainer 44 is arranged within described hammer pipe 10 equally.At this, tool retainer 44 is arranged between described hammer pipe 10 and described impact pin 42.In order to the supporting that can rotate of described hammer pipe 10 within described beater mechanism housing 40, described hand machine tool striking mechanism has a sliding bearing 46 in described front area.By described sliding bearing 46, described hammer pipe 10 can reverse relative to described beater mechanism housing 40 and rotate in described beater mechanism housing 40.Described hand machine tool striking mechanism comprises a relieving ring 48 outside, and one of the described means accepts portion 38 that faces that this relieving ring is outside arranged in described sliding bearing 46 vertically side is connected with described beater mechanism housing 40.By described relieving ring 48, described sliding bearing 46 is in axial direction supported on described beater mechanism housing 40.Described hammer pipe 10 is in axial direction supported on described beater mechanism housing 40 by described sliding bearing.At this, described hand machine tool striking mechanism has a damping unit 50, and this damping unit is arranged between described sliding bearing 46 and hammer pipe 10.
In order to be supported on described beater mechanism housing 40 by described damping unit 50 and described sliding bearing 46 by described hammer pipe 10, described hammer pipe 10 constructs an axial stop 52.In order to construct described axial stop 52, described hand machine tool striking mechanism has a relieving ring 14.Described relieving ring 14 couples with described hammer pipe 10 securely at this.In order to be connected on described hammer pipe 10 by described relieving ring 14, described hammer pipe 10 has a groove 12.This groove 12 circumferentially directional ring is inserted in the periphery of described hammer pipe 10 around ground.In order to be connected on described hammer pipe 10 by described relieving ring 14, described relieving ring 14 is arranged in the groove 12 of hammer pipe 10.Described hand machine tool striking mechanism has two backstop dishes 54,56, wherein, backstop dish 54 be above arranged in described relieving ring 14 the side facing described means accepts portion 38 on and backstop dish 56 be below arranged on the side deviating from described means accepts portion 38 of described relieving ring 14.Backstop dish 54 before described is supported on described damping unit 50 with the sliding surface 58 facing described means accepts portion 38.By described sliding surface 58 ensure that described before backstop dish 54 and described damping unit 50 between the few relative motion of friction.Described backstop dish 56 below has the interior diameter of a sedimentation, and described relieving ring 14 is contained in this interior diameter in the assembled state.Described backstop dish 56 below constitutes a sliding surface 60 on the side deviating from described means accepts portion 38, and described backstop dish 56 utilizes this sliding surface to be in axial direction supported on described beater mechanism housing 40 by another relieving ring 62 be connected with described beater mechanism housing 40 of described hand machine tool striking mechanism.Described two backstop dishes 54,56 carry out contacting and supporting each other thus with the side faced each other at this.Constituted an axial plain bearing of described hammer pipe 10 by described two backstop dishes 54,56 and described relieving ring 14, described hammer pipe 10 is fixed along two relatively described beater mechanism housings 40 of axial direction.
Described relieving ring 14 (Fig. 3) surrounds described hammer pipe 10 completely, and described relieving ring constitutes described axial stop 52 and on this relieving ring, supports described two backstop dishes 54,56.Described relieving ring 14 surrounds described hammer pipe 10 at this around more than 360 degree.For this reason, described relieving ring 14 is configured to fuse cutout ring.In order to be designed to fuse cutout ring, described relieving ring 14 by rolling and winding round wire rod formed.Described relieving ring 14 is formed by a spring steel at this.Principle may also be considered that: described relieving ring 14 is shown as significant metal to be formed to those skilled in the art by another, or another material is formed.Described relieving ring 14 has the cross section (see Fig. 1) of a rectangle at this, and its seamed edge is rounded.The narrow side of described rectangular cross section is in this in axial direction orientation.The wide side of the cross section of described rectangle is orthogonal to following medial axis orientation at this, and the described rectangular cross section forming described relieving ring 14 reels around this medial axis.This relieving ring 14 has two at this and spirals 16,18.First spirals 16 fully to construct at this and to form 360 degree.Second spirals 18 forms only 350 degree at this not fully structure.Thus, there is little gap between the first end 64 of described relieving ring 14 and the second end 66.At this, in the axial sides that the described end 64 of described relieving ring 14 is arranged in described relieving ring 14 and the other end 66 is arranged in the opposite axial sides of described relieving ring 14.Principle also can be considered: described relieving ring 14 forms two and spirals completely, or even spirals more than two.
Described relieving ring 14 forms a stop surface and/or thrust surface 20,22 respectively in two axial sides.Described stop surface and/or thrust surface 20,22 are formed by axial direction outside, the wide side of described relieving ring 14 respectively.Described stop surface and/or thrust surface 20,22 abut on backstop dish 54,56 that is corresponding, that face corresponding stop surface and/or thrust surface 20,22 in the assembled state respectively.Described backstop dish 54,56 slides on this stop surface at described relieving ring 14 and/or thrust surface 20,22.By the backstop of described backstop dish 54,56 on the stop surface and/or thrust surface 20,22 of described relieving ring 14, these backstop dishes 54,56 described respectively along an axial direction fix and can be rubbed by described slip few ground and thus noise less relatively described relieving ring 14 reverse.In order to improve described relieving ring 14 and correspondence backstop dish 54,56 between sliding properties, described relieving ring 14 has a coating 24.Described coating 24 is taped against on whole relieving ring 14.Also can consider in principle: only described stop surface and/or thrust surface 20,22 have a coating 24.
Described hammer pipe 10 described relieving ring 14 groove 12 be arranged in wherein is had such radius 26, these radiuses 0.6 millimeter are so large.Transition part between bottom land 68 and described cell wall 70 is formed by described radius 26 at this.At this, described groove 12 can be configured with radius 26 large like this based on the cross section of the rounding of described relieving ring 14, especially can reduce the negative effect of described groove 12 thus to the notch effect on service life.Described relieving ring 14 is connected with described groove 12 by means of press-fit.By described press-fit, described relieving ring 14 rigidly and at utmost Shangdi is arranged in described groove 12 in anti-relative rotation.Described relieving ring 14 is pressed in the groove 12 of described hammer pipe with the power improved at this, thus described relieving ring 14 is clamped within described groove 12.Can consider at this: described relieving ring 14 is assembled in described groove 12 to assemble cooledly, thus the clamping added is produced by the thermal expansion of described relieving ring 14.Also can consider at this: described relieving ring 14 can assemble sleeve pushing sleeve on described hammer pipe by means of an assembling cone and one.
In the assembled state, described relieving ring 14 has one at this and to spiral direction, and this direction of spiraling extends along the main rotation of described hammer pipe 10 and load direction.At this, the end 64,66 of described relieving ring 14 operates respectively on the side facing described relieving ring 14 of corresponding thrust button 54,56.At this, the end 64,66 of described relieving ring 14 is pointed to towards described main rotation and load direction respectively.Described main rotation and load direction are formed by following direction at this, and described hammer pipe 10 mainly rotates in the direction at run duration.By the end 64,66 of described relieving ring 14 orientation along described main rotation and load direction, described relieving ring 14 advantageously to be moved to further in described groove 12 at run duration and is advantageously also placed in more firmly thus in described groove 12.Described relieving ring 14 mainly to rotate and this orientation of load direction advantageously has influence on sliding properties between described relieving ring 14 and corresponding thrust button 54,56 in addition relative to described.
Claims (10)
1. hand machine tool striking mechanism, it has at least one hammer pipe (10), at least one hammer pipe described has at least one groove (12), described hand machine tool striking mechanism also has at least one relieving ring (14) be arranged in described groove (12), at least one relieving ring described arranges the axial stop for constructing described hammer pipe (10), it is characterized in that, described relieving ring (14) surrounds described hammer pipe (10) completely.
2. hand machine tool striking mechanism according to claim 1, is characterized in that, described relieving ring (14) is more than 360 degree holding described hammer pipe (10).
3. hand machine tool striking mechanism according to claim 1 and 2, is characterized in that, described relieving ring (14) is configured to fuse cutout ring.
4. according to the hand machine tool striking mechanism one of aforementioned claim Suo Shu, it is characterized in that, described relieving ring (14) has at least two spiral (16,18).
5. according to the hand machine tool striking mechanism one of aforementioned claim Suo Shu, it is characterized in that, described relieving ring (14) forms at least one stop surface and/or thrust surface (20,22).
6. according to the hand machine tool striking mechanism one of aforementioned claim Suo Shu, it is characterized in that, described relieving ring (14) has a coating (24) at least in part.
7. according to the hand machine tool striking mechanism one of aforementioned claim Suo Shu, it is characterized in that, described relieving ring (14) has one and to spiral direction, described in direction of spiraling extend along the main rotation of described hammer pipe (12) and load direction in the assembled state.
8. according to the hand machine tool striking mechanism one of aforementioned claim Suo Shu, it is characterized in that, the groove (12) at described relieving ring (14) place has such radius (26), and this radius is greater than 0.5 millimeter.
9. according to the hand machine tool striking mechanism one of aforementioned claim Suo Shu, it is characterized in that, described relieving ring (14) is connected with described groove (12) by means of press-fit.
10. hand held power machine, it has according to the hand machine tool striking mechanism one of aforementioned claim Suo Shu.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102013212520.8A DE102013212520A1 (en) | 2013-06-27 | 2013-06-27 | Hand tools percussion |
| DE102013212520.8 | 2013-06-27 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104249334A true CN104249334A (en) | 2014-12-31 |
| CN104249334B CN104249334B (en) | 2018-02-27 |
Family
ID=52017306
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410293699.5A Active CN104249334B (en) | 2013-06-27 | 2014-06-26 | Hand machine tool striking mechanism |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN104249334B (en) |
| DE (1) | DE102013212520A1 (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101031393A (en) * | 2004-09-30 | 2007-09-05 | 罗伯特·博世有限公司 | Handheld machine tool, especially a drill hammer and/or a percussive drill |
| CN201128146Y (en) * | 2007-12-21 | 2008-10-08 | 强网工业股份有限公司 | Output state switching mechanism |
| CN101537511A (en) * | 2008-03-18 | 2009-09-23 | 罗伯特·博世有限公司 | Portable machine tool with striker capture device and/or striker damping device |
| EP2140982A1 (en) * | 2008-07-03 | 2010-01-06 | Robert Bosch GmbH | Rotary and/or demolition hammer |
| CN201385303Y (en) * | 2009-01-11 | 2010-01-20 | 牛姣娥 | Rolling type impact device |
| CN201816040U (en) * | 2010-08-16 | 2011-05-04 | 林昌方 | Device for connecting and converting MAX or long hexagonal electric hammer |
-
2013
- 2013-06-27 DE DE102013212520.8A patent/DE102013212520A1/en active Pending
-
2014
- 2014-06-26 CN CN201410293699.5A patent/CN104249334B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101031393A (en) * | 2004-09-30 | 2007-09-05 | 罗伯特·博世有限公司 | Handheld machine tool, especially a drill hammer and/or a percussive drill |
| CN201128146Y (en) * | 2007-12-21 | 2008-10-08 | 强网工业股份有限公司 | Output state switching mechanism |
| CN101537511A (en) * | 2008-03-18 | 2009-09-23 | 罗伯特·博世有限公司 | Portable machine tool with striker capture device and/or striker damping device |
| EP2140982A1 (en) * | 2008-07-03 | 2010-01-06 | Robert Bosch GmbH | Rotary and/or demolition hammer |
| CN201385303Y (en) * | 2009-01-11 | 2010-01-20 | 牛姣娥 | Rolling type impact device |
| CN201816040U (en) * | 2010-08-16 | 2011-05-04 | 林昌方 | Device for connecting and converting MAX or long hexagonal electric hammer |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102013212520A1 (en) | 2014-12-31 |
| CN104249334B (en) | 2018-02-27 |
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