CN1071175C - Tool chuck for hand tool machine - Google Patents
Tool chuck for hand tool machine Download PDFInfo
- Publication number
- CN1071175C CN1071175C CN96103675A CN96103675A CN1071175C CN 1071175 C CN1071175 C CN 1071175C CN 96103675 A CN96103675 A CN 96103675A CN 96103675 A CN96103675 A CN 96103675A CN 1071175 C CN1071175 C CN 1071175C
- Authority
- CN
- China
- Prior art keywords
- dust cover
- instrument
- folder
- instrument folder
- fixed disk
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 239000000428 dust Substances 0.000 claims abstract description 60
- 238000005553 drilling Methods 0.000 claims abstract description 10
- 230000033001 locomotion Effects 0.000 claims abstract description 4
- 239000011159 matrix material Substances 0.000 claims description 18
- 230000002708 enhancing effect Effects 0.000 claims description 11
- 238000005520 cutting process Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 5
- 238000012856 packing Methods 0.000 claims description 2
- 238000009527 percussion Methods 0.000 abstract description 5
- 230000002787 reinforcement Effects 0.000 abstract 1
- 230000003014 reinforcing effect Effects 0.000 abstract 1
- 210000000078 claw Anatomy 0.000 description 4
- 239000011435 rock Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000013536 elastomeric material Substances 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 210000004907 gland Anatomy 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
- Processing Of Stones Or Stones Resemblance Materials (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
工具夹设有一个防尘罩(14)，它借助于一个支承(21)可相对于工具夹(12)的基体(15)转动地支承着。支承(21)由两个盘构成，一个是增强盘(24)和一个是固定盘(27)，它们通过一个相对于工具夹轴向固定的卡圈(26)互相隔开。增强盘和固定盘不可相对转动地装在防尘罩内，并与工具夹之间具有运动间隙。支承防止钻孔时防尘罩与壁面相碰而被磨损，或在壁上产生压力。本发明的工具夹可用于钻孔或冲击式钻孔机和手提凿岩机或冲击锤。
The tool holder is provided with a dust cover (14), which is mounted rotatably relative to the base body (15) of the tool holder (12) by means of a bearing (21). The support (21) consists of two disks, a reinforcement disk (24) and a fixed disk (27), which are separated from each other by a collar (26) axially fixed relative to the tool holder. The reinforcing disc and the fixed disc are arranged in the dust cover in a non-rotatable manner, and have a movement gap with the tool holder. The support prevents the dust cover from being worn against the wall when drilling, or from creating pressure on the wall. The tool holder of the present invention can be used with drilling or percussion drilling machines and jackhammers or percussion hammers.
Description
The present invention relates to be used for the instrument folder of hand tool, be particularly useful for boring or impact type drilling machine and portable rock drill or jump bit.
Known this class instrument folder (EP548702A1), it is designed to the drill chuck with claw, to be provided with a dust cover, invades in order to prevent drilling cuttings.Dust cover is fixed on to the friction connection in the hole on the instrument stick of tool chuck by an inwardly outstanding annular nib.Dust cover rotates with drill chuck when boring.If dust cover is when contacting with wall surface, dust cover can damage wall, or extremely I haven't seen you for ages on wall build-up of pressure.In this case, the dust cover outside and its inboard in the chimb district are worn and damage.
In addition, existing instrument is folded with dust cover on the market, and this dust cover is fixed on the hollow cylinder drill chuck of instrument folder by means of annular fixed disk.Fixed disk leans against on the rib of drill chuck body on the one hand vertically, prevents that by means of a collar it from moving axially on the other hand.When contacting with wall, this is braked with the dust cover that the drill chuck body rotates.So dust cover may be along circumferentially rotating with respect to drill chuck.Certainly, in this case owing to the type and the mode that support, thereby can not get rid of and the collar CONTACT WITH FRICTION, and especially having under the situation of radial load and drill chuck body generation CONTACT WITH FRICTION, so,, when contacting, also can bring undesirable wearing and tearing with wall for this known dust cover.
Wearing and tearing when the dust cover that the objective of the invention is to prevent the instrument folder contacts with wall.
The invention provides a kind of hand tool that is used for, instrument folder in particular for boring or impact type drilling machine and portable rock drill or jump bit, it has the matrix of a band installing hole, pack into instrument and can put a dust cover of Kong Zhongke, so as to preventing dust, drilling cuttings, intrusions such as moisture, it is characterized by: dust cover can be contained on this instrument folder with respect to the instrument folder rotatably by means of a supporting, this is supported to rare two dishes, they have radial motion direction gap and are contained in rotationally on the instrument folder, and are separated from each other by the collar of relative this instrument folder axial restraint.By contrast, the advantage of pressing from both sides by instrument of the present invention is, can avoid taking place for example causing the unnecessary wearing and tearing of dust cover because of contacting with wall when boring.
In further favourable structure, owing to support dust cover by means of fixed disk, enhancing dish and the collar between them, thus guaranteed that the instrument folder is a kind of compact structure mode.Employing is to the chimb of inner process, can make dust cover reliably, axially can not be retained on the fixed disk movably.Inclined-plane on the chimb makes dust cover be easy to assembling.
Embodiments of the invention are represented in the accompanying drawings, and are further introduced in the following description.Fig. 1 represents the view of the percussion drill of band instrument folder, and Fig. 2 is the part sectioned view that presss from both sides by the instrument by the present invention's design.
The impact of giving an example with a kind of hand tool of 10 conducts of representing among Fig. 1 is drilled with a shell 11.Percussion drill 10 has instrument folder 12, it with a figure in further the rotating driveshaft of expression link to each other in the end of instrument one side, and can rotate by this drive shaft.Instrument 13 can be contained in the instrument folder 12.For dustproof, drilling cuttings, moisture etc., instrument folder 12 is provided with a dust cover 14, and its button covers on the front portion of instrument folder 12.
Fig. 2 has represented instrument folder 12 in detail.This instrument folder 12 has a matrix 15, and it has formed an installing hole 16 that instrument 13 extends vertically that is used in central authorities.Installing hole 16 is covered by dust cover 14 at instrument one end.Under the situation of giving an example, instrument folder 12 is designed to known combined type drill chuck, and it also has a pawl formula dop that is used to process unthreaded hole circular shaft instrument except installation is used for impacting the instrument of spline shaft of operation or boring by percussion operation (Fig. 2 does not represent).In addition, this pawl formula dop is furnished with three claws 17, has represented one of them among Fig. 2.Be contained in the claw 17 in matrix 15 inclined holes, adjust ring 18 by means of one, can be vertically and thereby also can radially move, adjust ring 18 and set up transmission with claw 17 and get in touch.Adjust the manipulation of ring 18 and undertaken by handling sleeve 19, this handles sleeve 19 is adjusted ring 18 with one heart round band instrument folder 12.Handling sleeve 19 can support rotationally with respect to matrix 15, and is connected with 18 torsion passes of adjustment ring.
Dust cover 14 is contained on the end 20 of matrix 15 tool side.In this case, the fixing of dust cover 14 undertaken by supporting 21, and supporting 21 guarantees the turnability of dust cover 14 with respect to instrument folder 12, is the turnability with respect to the matrix 15 of instrument folder 12 under the situation of giving an example.Be shaped on two and keep apart the lip limit 22 of distance and the dust cover 14 of between through hole 23 radially vertically, be provided with the enhancing dish 24 of an annular, it bears the load that acts on the dust cover 14 vertically backward.Enhancing dish 24 rests on the collar 26 in the cannelure 25 of the matrix 15 of packing into.This enhancing dish 24 is pressed in the annular groove 30 of dust cover 14.It can be just by being attached thereto together from the outside injection under pressure when making dust cover 14.
In addition, also push to a fixed disk 27 that is similarly annular on instrument folder 12, fixed disk 27 is contained in collar 26 back vertically.Enhancing dish 24 is identical substantially with the size of fixed disk 27.Dust cover 14 fastens fixed disk 27 from behind by an annular nib 29 to inner process, thereby fixing dust cover 14 makes it can not move forward vertically on matrix 15.27 frictions are contained in the dust cover 14 enhancing dish 24 with being connected with fixed disk, and be located on the matrix 15 with having movement clearance, so they also comprise that also dust cover 14 can hang down frictionally with respect to matrix 15 rotations, enhancing dish 24, collar 26 and fixed disk 27 have only very little end play mutually, and have meanwhile constituted a labyrinth gland between dust cover 14 and matrix 15.Dust cover forms a sealing lug at its outer rim 28 places, it makes the drilling cuttings at this place be subjected to the centrifugal force that radially outwards gets rid of during rotation, and covers dust cover 14 and handle the gap of leaving between the sleeve 19.
In order to assemble dust cover 14, at first fixed disk 27 is shifted onto on the matrix 15.Then, collar 26 is installed in the groove 25, thus with fixed disk 27 at matrix 15 upper edge axial reliefs.Then, the dust cover 14 that is provided with enhancing dish 24 usefulness elastomeric material systems is contained on the matrix 15, and cross fixed disk 27 vertically with its chimb 29 to inner process, for this reason, dust cover 14 is shaped on a tapered slope 31, when dust cover 14 was pushed to matrix 15, this inclined-plane 31 was felt relieved dust cover 14 on fixed disk 27.So inwardly prominent chimb 29 radially snaps onto the back of fixed disk 27, thereby dust cover 14 immovably is fixed on the matrix 15 vertically.When dust cover 14 was installed, handling sleeve 19 must not be moved.
By centering, guiding and the insurance of dust cover 14, can obtain a kind of structural shape of weak point via dish 24,27.Prevented also that thus dust cover 14 from toppling over, so can avoid direct contact of dust cover 14 and instrument folder 12 all the time.
The invention is not restricted to represented embodiment.Important point is that dust cover 14 can press from both sides 12 with respect to instrument and support rotationally.Therefore, dust cover for example also can be rotated to support on to be handled on the sleeve 19, can correspondingly design for this reason.Can certainly establish rolling bearing, to replace above-mentioned sliding bearing.The present invention can be applicable to various hand tools in principle in this hand tool, and the installing hole of instrument folder is with respect to the instrument of wherein being packed into, should prevent the intrusion of dust etc. by means of dust cover.Therefore, it especially also can advantageously be applied in the simple puncher.
Claims (8)
1. the instrument folder that is used for hand tool, it has the matrix (15) of a band installing hole (16), the instrument (13) of can packing in the hole (16) also can put a dust cover (14), so as to preventing dust, drilling cuttings, intrusions such as moisture, it is characterized by: dust cover (14) can press from both sides (12) with respect to instrument by means of a supporting (21) and be contained in rotatably on this instrument folder (12), this supporting (21) has two dishes (24 at least, 27), they have the radial motion gap and are contained in rotationally on the instrument folder (12), and are separated from each other by the collar (26) of relative this instrument folder (12) axial restraint.
2. according to the described instrument folder of claim 1, it is characterized by: supporting (21) has a fixed disk (27) and an enhancing dish (24), and when loading onto dust cover (14), they are contained in this dust cover (14) and can not relatively rotate.
3. according to the described instrument folder of claim 2, it is characterized by: supporting (21) is contained on the matrix (15) of instrument folder (12).
4. according to claim 2 or 3 described instrument folders, it is characterized by: dust cover (14) fastens fixed disk (27) by an annular nib to inner process (29) with being rigidly connected vertically from behind.
5. according to the described instrument folder of claim 4, it is characterized by: dust cover (14) has an inclined-plane (31) on its chimb (29).
6. according to the described instrument folder of one of claim 2 to 5, it is characterized by: have end play in a small amount between enhancing dish (24), collar (26) and fixed disk (27) are mutual.
7. according to the described instrument of one of claim 2 to 6 folder, it is characterized by: enhancing dish (24) and fixed disk (27) big or small basic identical.
8. according to the described instrument folder of one of aforementioned all claims, it is characterized by: the outer rim (28) of dust cover (14) is outwards lug-shaped expansion radially.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96103675A CN1071175C (en) | 1996-03-26 | 1996-03-26 | Tool chuck for hand tool machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN96103675A CN1071175C (en) | 1996-03-26 | 1996-03-26 | Tool chuck for hand tool machine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1160622A CN1160622A (en) | 1997-10-01 |
| CN1071175C true CN1071175C (en) | 2001-09-19 |
Family
ID=5118146
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96103675A Expired - Fee Related CN1071175C (en) | 1996-03-26 | 1996-03-26 | Tool chuck for hand tool machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1071175C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293973C (en) * | 2002-06-12 | 2007-01-10 | 罗姆股份有限公司 | Drill-press draw-in gear |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5534940B2 (en) * | 2010-05-25 | 2014-07-02 | 株式会社マキタ | Impact tool |
| DE102011075858A1 (en) * | 2011-05-16 | 2012-11-22 | Robert Bosch Gmbh | Tool holder for portable machine tool, particular hand tool e.g. hammer drill, has actuating medium, which allows suppression of limiting range of motion of one fixing unit |
| EP2749381B1 (en) * | 2012-12-25 | 2017-04-19 | Makita Corporation | Impact tool |
| CN104626071B (en) * | 2015-03-02 | 2016-03-30 | 朱金凤 | Electric hand drill dedusting ring |
| CN111396574A (en) * | 2020-04-13 | 2020-07-10 | 宁波华望信息科技有限公司 | Valve with anti-rotation function |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0014357A1 (en) * | 1979-01-31 | 1980-08-20 | Black & Decker Inc. | Dust sealing mechanism |
| CN2042406U (en) * | 1988-05-14 | 1989-08-09 | 寿宏勋 | Dust collector for impact electric drill |
-
1996
- 1996-03-26 CN CN96103675A patent/CN1071175C/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0014357A1 (en) * | 1979-01-31 | 1980-08-20 | Black & Decker Inc. | Dust sealing mechanism |
| CN2042406U (en) * | 1988-05-14 | 1989-08-09 | 寿宏勋 | Dust collector for impact electric drill |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1293973C (en) * | 2002-06-12 | 2007-01-10 | 罗姆股份有限公司 | Drill-press draw-in gear |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1160622A (en) | 1997-10-01 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20010919 |