CN101977730A - Hand-held machine tool, in particular hand-guided grinding machine - Google Patents
Hand-held machine tool, in particular hand-guided grinding machine Download PDFInfo
- Publication number
- CN101977730A CN101977730A CN200880128126XA CN200880128126A CN101977730A CN 101977730 A CN101977730 A CN 101977730A CN 200880128126X A CN200880128126X A CN 200880128126XA CN 200880128126 A CN200880128126 A CN 200880128126A CN 101977730 A CN101977730 A CN 101977730A
- Authority
- CN
- China
- Prior art keywords
- hand held
- power machine
- held power
- adapter
- plane
- 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
- 238000000227 grinding Methods 0.000 title description 12
- 238000000465 moulding Methods 0.000 claims description 32
- 230000005540 biological transmission Effects 0.000 claims description 25
- 238000007789 sealing Methods 0.000 claims description 13
- 238000003801 milling Methods 0.000 claims description 4
- 230000003044 adaptive effect Effects 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims description 2
- 239000002184 metal Substances 0.000 claims description 2
- 239000004033 plastic Substances 0.000 claims description 2
- 229920003023 plastic Polymers 0.000 claims description 2
- 230000004323 axial length Effects 0.000 description 4
- 239000010687 lubricating oil Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010276 construction 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
- 230000001419 dependent effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000006386 neutralization reaction Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B23/00—Portable grinding machines, e.g. hand-guided; Accessories therefor
- B24B23/02—Portable grinding machines, e.g. hand-guided; Accessories therefor with rotating grinding tools; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25F—COMBINATION OR MULTI-PURPOSE TOOLS NOT OTHERWISE PROVIDED FOR; DETAILS OR COMPONENTS OF PORTABLE POWER-DRIVEN TOOLS NOT PARTICULARLY RELATED TO THE OPERATIONS PERFORMED AND NOT OTHERWISE PROVIDED FOR
- B25F5/00—Details or components of portable power-driven tools not particularly related to the operations performed and not otherwise provided for
- B25F5/02—Construction of casings, bodies or handles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Finish Polishing, Edge Sharpening, And Grinding By Specific Grinding Devices (AREA)
- Motor Or Generator Frames (AREA)
- Grinding-Machine Dressing And Accessory Apparatuses (AREA)
Abstract
A hand-held machine tool comprises a split housing, the two housing parts of which are to be connected by means of a connecting device that is designed as a plug-in connection. The plug-in connection has a connection piece on the first housing part and an opposite connection piece on the second housing part. At least one section of the connection piece and of the opposite connection piece extends at an angle from the longitudinal axis of the connection piece.
Description
Technical field
The present invention relates to a kind of hand held power machine, especially a kind of hand according to claim 1 preamble is managed the formula milling drum.
Background technology
By the known a kind of angle of EP 0 583 280B1 grinding machine, this angle grinding machine has the CD-ROM drive motor that is used for rotatably driving a cutter shaft in housing, be fixed with a grinding knife tool on this cutter shaft.Such angle grinding machine is driven by electric motor type ground usually, and wherein, the driving shaft of electric drive motor is perpendicular to the cutter shaft setting and by transmission device and the coupling of this cutter shaft.
The housing of angle grinding machine bears significant load at run duration, and these loads are on the one hand from the vibration of CD-ROM drive motor, on the other hand from contacting between grinding knife tool and the workpiece that will process.Therefore, also to note high stability except simple assembling.
Must consider in addition, thereby the lubriation material that is particularly useful for the supporting arrangement of driving shaft and cutter shaft is in operation and is heated and liquefy, has the danger of the lubriation material outflow of not expecting thus.
Summary of the invention
Task of the present invention is that one side is simplified the assembling of hand held power machine and especially firmly constructed the housing of hand held power machine on the other hand.
Feature with claim 1 solves this task according to the present invention.Dependent claims provides the expanded configuration that meets purpose.
Manage formula milling drum, for example angle grinding machine according to hand held power machine of the present invention especially hand, this hand held power machine is provided with a housing of two-piece type at least, and wherein, two housings of this of hand held power machine interconnect by jockey.This jockey has a plug-in connector, and adapter and the cooperation on second housing parts that this plug-in connector is included on first housing parts are taken over, and wherein, adapter and cooperation adapter shape under the situation of having assembled are meshing with each other sealedly.At least a portion of taking over is provided with a moulding inclined-plane, and this moulding inclined-plane surrounds an angle with respect to taking over longitudinal axis, wherein, cooperates adapter and this moulding inclined-plane adaptive.
This embodiment has the following advantages: the connection between these housing parts can be made in simple mode based on the moulding inclined-plane, and this moulding inclined-plane is an angle with respect to assembly direction.Carry out these housing parts and engage on the direction of taking over longitudinal axis between erecting stage, wherein, this moulding inclined-plane is used for the automatic centering of housing parts.Simplify assembling thus significantly.
Realized stable improvement by this centering simultaneously, because the engagement securely under the situation that has assembled of these two housing parts, this is by the sealed lifting of shape, and these housing parts opposings of the sealed assurance of shape are reversed.
This moulding inclined-plane can itself be configured in the adapter, its mode is that this adapter has coniform shape according to advantageous embodiments, wherein, this taper shape extends on the whole axial length of taking over or only extends on an axial component section according to another embodiment, wherein, this non-conical part section is constructed for example cylindrically.According to another embodiment, the axially outstanding moulding inclined-plane that in this adapter, is shaped, this moulding inclined-plane surrounds an angle with the adapter longitudinal axis.In this case, constitute curved section with the moulding inclined-plane of taking over Construction integration, this curved section tilts with an angle with respect to the adapter longitudinal axis of representing assembly direction simultaneously.On taking over, cooperation is provided with the gathering sill adaptive with the moulding inclined-plane.The adapter self that is provided with axially outstanding moulding inclined-plane can be constructed or conical the structure cylindrically, wherein, the coning angle advantageously angle with the moulding inclined-plane is consistent, but also departs from the angle on moulding inclined-plane in case of necessity, especially has the coning angle less than the moulding inclined-plane.
Advantageously, be configured with a plurality of moulding inclined-plane in the adapter and cooperating the corresponding gathering sill of structure in the adapter on the ground that distributes on the circumference, wherein, these moulding inclined-planes raise in the axial direction and surpass adapter.Thus in the sealed engagement of shape that produces in a circumferential direction under the situation that has assembled between adapter and the cooperation adapter.
This adapter and cooperate to take over meets the driving shaft that the destination is configured to receive the CD-ROM drive motor of hand held power machine.Therefore, this plug-in connector is realized the attachment of a task of supporting driving shaft.This driving shaft passes to take over or cooperate and takes over and be coupled by transmission device and cutter shaft.The effect of playing supporting and stabilize drive shaft is simultaneously taken in this adapter or cooperation, especially also can insert swivel bearing in adapter for this reason.In addition, what meet purpose is, is provided with an additional sealing ring, the sealing circle be positioned between the inwall of the circumference of swivel bearing and adapter and prevent liquid lubricant, especially lubricating oil overflows.The sealing circle meets the minimum hardness that the destination has shore hardness A40, and the load that occurs when guaranteeing for operation has enough sealings.
Two housing parts that will connect relate in particular to the transmission housing that the motor shell that receives CD-ROM drive motor therein and supporting therein are used to drive the cutter shaft of cutter.This motor shell advantageously is made up of plastics, and this transmission housing can be made by light metal, and is for example made of aluminum.This motor shell multi-hull type ground is implemented in case of necessity, and its mode is that two and half shells for example are set, and these half shells interconnect and replenish into motor shell, and this motor shell is connected with the transmission housing by plug-in connector.
Description of drawings
From other claim, description of drawings and accompanying drawing, learn other advantages and meet the embodiment of purpose.Accompanying drawing illustrates:
Fig. 1 illustrates the cutaway view of the hand held power machine that is configured to the angle grinding machine, and this hand held power machine has the transmission housing that is used to receive the motor shell of CD-ROM drive motor and is used to receive cutter shaft,
Fig. 2 is illustrated in the three-dimensional view of transmission housing in the approximated position between erecting stage and section motor shell, that will be connected with the transmission housing,
Fig. 3 illustrates the schematic diagram corresponding to Fig. 2, but motor shell and transmission housing in rigging position,
Fig. 4 illustrates the detailed maps of the recess of motor shell from the zone that is connected with the transmission housing,
Fig. 5 illustrates the end-view of the transmission housing with the motor shell section that has assembled,
Fig. 6 illustrates the cutaway view according to the cutting line VI-VI of Fig. 5,
Fig. 7 illustrates the cutaway view according to the cutting line VII-VII of Fig. 5,
Fig. 8 illustrates the three-dimensional view of the housing parts that will assemble, and has a swivel bearing and a sealing ring, and this swivel bearing is inserted in the adapter of transmission housing and is used to receive motor drive shaft, and the sealing circle arranges around this swivel bearing,
Fig. 9 illustrates the confined state of motor shell and transmission housing with cutaway view.
Identical in the accompanying drawings member is provided with identical Reference numeral.
The specific embodiment
Hand held power machine 1 shown in Figure 1 is constructed to the angle grinding machine, and this angle grinding machine has a two-piece housing that has motor shell 2 and transmission housing 3.In this motor shell 2, receive an electric drive motor 4, a rotatably mounted cutter shaft 7 in transmission housing 3, fixing grinding knife tool 8 on this cutter shaft.Additionally fix a protective cover 10 on the bearing flange on the transmission housing 39, this protective cover covers this cutter 8.
The driving shaft of this electric drive motor 4 or armature shaft 5 extend with respect to cutter shaft 7 with meeting at right angles and are coupled with cutter shaft 7 rotations by a transmission device 6 that is arranged in transmission housing 3.This motor shell 2 and transmission housing 3 interconnect by the jockey 11 that is embodied as plug-in connector, describe in detail among this jockey figure below.
The same as learning from Fig. 2 and 3, this jockey 11 that is embodied as plug-in connector comprises an adapter 12 of constructing integratedly and that construct integratedly with motor shell 2, corresponding a cooperation takes over 13 on transmission housing 3.In rigging position (Fig. 3), take over 12 and cooperate and take over 13 and peg graft mutually, this assembly direction represents to take over 12 or cooperate and take over 13 axis direction simultaneously.This axis direction overlaps with the driving shaft of motor or the axis direction of armature shaft, and driving shaft or armature shaft pass adapter 12 or cooperate the hole of taking in 13.13 cylindrical basically or hollow cylinder ground structures are taken in adapter 12 and cooperation, yet they have the roundlet cone angle at least in part, specifically by this way, promptly take over 12 or conical section that cooperate to take on 13 dwindle towards the direction of transmission housing 3.Therefore, when assembling motor shell 2 and transmission housing 3, realize the assembling that neutralization is simplified to these two housing parts.
Be provided with axially outstanding moulding inclined-plane 14 in the adapter on the transmission housing 3 12, these moulding inclined-planes extend on fan-shaped section on the circumferencial direction of adapter 12 respectively.Be provided with four such moulding inclined-planes 14 altogether in this embodiment.On a side of the adapter of the cooperation on the motor shell 2 13, respectively dispose a gathering sill 15 (Fig. 3 and Fig. 4) for each moulding inclined-plane 14, complementally construct on this gathering sill and moulding inclined-plane, wherein, in rigging position, these moulding inclined-planes 14 extend in the gathering sill 15 and to form shape in a circumferential direction sealed.Enough in principle is, only moulding inclined-plane 14 or gathering sill 15 is configured to have the coning angle with respect to taking over and cooperate the axis of taking over, and take over 12 itself or cooperate to take over and implement cylindrically.But according to a conversion embodiment, the cooperation that not only comprises the adapter 12 on moulding inclined-plane 14 but also have a gathering sill 15 is taken over 13 fully, be that is to say on they axial lengths separately and construct with coning angle.
As further learning, insert a swivel bearing 16, rotatably mounted driving shaft in this swivel bearing 16 in the dead slot in the cooperation adapter 13 on motor shell 2 from Fig. 2 to 4.This cooperation is taken over 13 and is configured on the crossbeam 17, and this crossbeam and motor shell 2 are constructed integratedly and extended in the horizontal from the sidewall of motor shell 2.
As learning from Fig. 5 to 7, the inwall of this adapter 12 and cooperate to take over 13 outer wall and be configured to taper shape with cone angle alpha, this coning angle meets the destination less than 20 ° and be approximately 10 ° in this embodiment.The inwall of moulding adapter 12 is comprising that (Fig. 6) constructs conically on the whole axial length on moulding inclined-plane 14, and cooperates the outer wall of adapter 13 only to construct on the axial length of gathering sill 15 cylindrically.Cooperate taking over inwall 13, that insert swivel bearing 16 therein is configured to columniform.
As from Fig. 8 with 9 learn equally, this swivel bearing 16 is surrounded by a sealing ring 18, the sealing circle is installed to by taking over 12 and cooperate and take in 13 jockeys of forming.In the rigging position according to Fig. 9, sealing circle 18 is positioned on the circumference of swivel bearing 16, wherein, takes over 12 and cooperate and take over 13 and can construct by this way, make constitute one be used for sealing ring 18, around little receiving slit.Sealing ring 18 with shore hardness A40 at least in rigging position, taking over just 12 with the impact seamed edge that cooperates between the adapter 13 on.
Claims (13)
1. hand held power machine, especially hand is managed the formula milling drum, it is characterized in that, the housing of this hand held power machine (1) comprises two housing parts (2,3), these two housing parts interconnect by jockey (11), this jockey (11) has plug-in connector, (13) are taken in adapter (12) and the cooperation on second housing parts (3) that this plug-in connector is included on first housing parts (2), wherein, take over (12) and cooperate and take over (13) and be meshing with each other in the rigging position, at least a portion of taking over (13) with described cooperation of described adapter (12) is constructed with respect to the adapter longitudinal axis angledly.
2. according to the hand held power machine of claim 1, it is characterized in that, go up at least one axially outstanding moulding inclined-plane (14) that is shaped in described adapter (12), this moulding inclined-plane and described adapter longitudinal axis surround an angle (α), wherein, described cooperation is taken over (13) and is had at least one and the adaptive gathering sill (15) in described moulding inclined-plane (14).
3. according to the hand held power machine of claim 2, it is characterized in that, be provided with a plurality of moulding inclined-plane (14) on the circumference with distributing in the described adapter (12) and in described cooperation adapter (13), be provided with corresponding gathering sill (15).
4. according to the hand held power machine of one of claim 1 to 3, it is characterized in that described adapter (12) and described cooperation are taken over (13) and be configured to conical at least in part.
5. according to the hand held power machine of one of claim 1 to 4, it is characterized in that described angle (α) is 20 ° to the maximum.
6. according to the hand held power machine of claim 2 and 4 or 5, it is characterized in that, described moulding inclined-plane (14) is the same with described adapter (12) be configured at least in part conical.
7. according to the hand held power machine of one of claim 1 to 6, it is characterized in that the driving shaft that (13) are configured to receive CD-ROM drive motor (4) is taken in described adapter (12) and described cooperation.
8. according to the hand held power machine of claim 7, it is characterized in that, in described adapter (12), insert a swivel bearing (16) that is used for described driving shaft.
9. according to the hand held power machine of claim 7 or 8, it is characterized in that, in described adapter (12), insert a sealing ring (18).
10. according to the hand held power machine of claim 9, it is characterized in that the shore hardness A of described sealing ring (18) is at least 40.
11. the hand held power machine according to one of claim 1 to 10 is characterized in that, described housing parts (2,3) is configured for receiving the motor shell (2) of CD-ROM drive motor (4) and is used to receive the transmission housing (3) of cutter shaft (7).
12. the hand held power machine according to claim 11 is characterized in that, described motor shell (2) is made of plastics.
13. the hand held power machine according to claim 11 or 12 is characterized in that, described transmission housing (3) is by light metal, especially made of aluminum.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102008000737.4 | 2008-03-18 | ||
| DE102008000737A DE102008000737A1 (en) | 2008-03-18 | 2008-03-18 | Hand tool, in particular hand-guided grinding machine |
| PCT/EP2008/065710 WO2009115143A1 (en) | 2008-03-18 | 2008-11-18 | Hand-held machine tool, in particular hand-guided grinding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101977730A true CN101977730A (en) | 2011-02-16 |
Family
ID=40329219
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200880128126XA Pending CN101977730A (en) | 2008-03-18 | 2008-11-18 | Hand-held machine tool, in particular hand-guided grinding machine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20110021120A1 (en) |
| EP (1) | EP2252431B1 (en) |
| CN (1) | CN101977730A (en) |
| DE (1) | DE102008000737A1 (en) |
| WO (1) | WO2009115143A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105269534A (en) * | 2014-06-06 | 2016-01-27 | 罗伯特·博世有限公司 | Electric Power Tool |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5853761B2 (en) * | 2012-02-24 | 2016-02-09 | 日産自動車株式会社 | Driving force transmission device |
| DE102012103935B4 (en) * | 2012-05-04 | 2015-03-19 | C. & E. Fein Gmbh | Housing with switch cover |
| EP2821184B1 (en) | 2013-07-05 | 2018-12-26 | Black & Decker Inc. | Hammer Drill |
| US11396078B2 (en) * | 2019-06-10 | 2022-07-26 | Makita Corporation | Grinder |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4266376A (en) * | 1979-02-09 | 1981-05-12 | Black & Decker Inc. | Portable electrically energized surface finishing tool |
| DE4102482A1 (en) * | 1991-01-29 | 1992-07-30 | Bosch Gmbh Robert | HAND MACHINE TOOL |
| DE4113641A1 (en) * | 1991-04-26 | 1992-10-29 | Bosch Gmbh Robert | HAND MACHINE TOOL |
| DE4113820A1 (en) | 1991-04-27 | 1992-10-29 | Boehringer Mannheim Gmbh | USE OF TORASEMIDE FOR THE TREATMENT OF HIRNOEDEMES |
| US5642008A (en) * | 1995-10-20 | 1997-06-24 | Waxing Corporation Of America, Inc. | Power tool motor assembly |
| DE10000700A1 (en) | 2000-01-10 | 2001-07-12 | Bosch Gmbh Robert | Angle grinder |
| DE102004016171A1 (en) * | 2004-03-30 | 2005-10-20 | Bosch Gmbh Robert | Hand tool |
| DE102005061870A1 (en) * | 2005-12-23 | 2007-07-05 | Robert Bosch Gmbh | Electric-powered hand tool e.g. rotary sanding or polishing tool has two-part housing with one overlapping half linked to the other by vibration dampener |
| JP4962896B2 (en) * | 2006-03-10 | 2012-06-27 | 日立工機株式会社 | Power tool |
-
2008
- 2008-03-18 DE DE102008000737A patent/DE102008000737A1/en not_active Withdrawn
- 2008-11-18 CN CN200880128126XA patent/CN101977730A/en active Pending
- 2008-11-18 WO PCT/EP2008/065710 patent/WO2009115143A1/en active Application Filing
- 2008-11-18 US US12/933,257 patent/US20110021120A1/en not_active Abandoned
- 2008-11-18 EP EP08873486A patent/EP2252431B1/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105269534A (en) * | 2014-06-06 | 2016-01-27 | 罗伯特·博世有限公司 | Electric Power Tool |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2009115143A1 (en) | 2009-09-24 |
| EP2252431A1 (en) | 2010-11-24 |
| US20110021120A1 (en) | 2011-01-27 |
| EP2252431B1 (en) | 2012-10-17 |
| DE102008000737A1 (en) | 2009-09-24 |
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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 | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20110216 |
|
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |