WO2012113152A1 - Dispositif d'arbre de transmission - Google Patents

Dispositif d'arbre de transmission Download PDF

Info

Publication number
WO2012113152A1
WO2012113152A1 PCT/CN2011/071302 CN2011071302W WO2012113152A1 WO 2012113152 A1 WO2012113152 A1 WO 2012113152A1 CN 2011071302 W CN2011071302 W CN 2011071302W WO 2012113152 A1 WO2012113152 A1 WO 2012113152A1
Authority
WO
WIPO (PCT)
Prior art keywords
transmission shaft
pinion
bearing
wobble
shaft device
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.)
Ceased
Application number
PCT/CN2011/071302
Other languages
English (en)
Inventor
Tie CHEN
Haihua Chai
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bosch Power Tools China Co Ltd
Original Assignee
Bosch Power Tools China Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Bosch Power Tools China Co Ltd filed Critical Bosch Power Tools China Co Ltd
Priority to CN2011800587814A priority Critical patent/CN103249529A/zh
Priority to PCT/CN2011/071302 priority patent/WO2012113152A1/fr
Publication of WO2012113152A1 publication Critical patent/WO2012113152A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D51/00—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends
    • B23D51/16—Sawing machines or sawing devices working with straight blades, characterised only by constructional features of particular parts; Carrying or attaching means for tools, covered by this subclass, which are connected to a carrier at both ends of drives or feed mechanisms for straight tools, e.g. saw blades, or bows
    • 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
    • B25D11/06—Means for driving the impulse member
    • B25D11/062—Means for driving the impulse member comprising a wobbling mechanism, swash plate

Definitions

  • the invention relates to an improved transmission shaft devices.
  • Transmission shaft devices for a hand-held power tool which comprise a transmission shaft and a wobble bearing, are well-known. These transmission shaft devices consist of a plurality of parts.
  • the invention relates to a transmission shaft device for a hand-held power tool, which comprises a transmission shaft with at least one bearing surface for mounting a pinion and/or at least one integral pinion, and a wobble bearing, wherein the transmission shaft comprises at least one portion which is permanently coupled with the wobble bearing in a rotatably fixed manner.
  • the transmission shaft shall be understood especially as a shaft that rotates about an axis in at least one operational state, to transmit a torque from an input source, such as an electric motor or a transmission, to an output, e.g. a tool holder or another transmission.
  • pinion shall be understood especially as an external gearwheel to transmit a torque and/or force to or from the transmission shaft.
  • permanently coupled shall be understood especially as inseparably attached.
  • mounted shall be understood as at least two separated parts being coupled.
  • the transmission shaft is formed integrally with the wobble bearing, whereby a fast and easy production of the transmission shaft device can be achieved.
  • integral shall be understood especially as made in one piece and/or bonded so that the parts cannot be dismantled without causing damage.
  • the transmission shaft device comprises at least one pinion, which is mounted on the transmission shaft in a rotatably fixed manner. Thereby, the transmission shaft device can be driven by a transmission gear.
  • the at least one pinion is pressed onto the transmission shaft. Thereby, an easy and quick attachment of the at least one pinion can be achieved.
  • the transmission shaft device comprises at least one further pinion, which is mounted to the transmission shaft in a rotatably fixed manner.
  • the transmission shaft can be flexibly integrated into a transmission gear.
  • At least one of the pinions is arranged in front of the wobble bearing and at least one of the pinions is arranged behind the wobble bearing.
  • the transmission shaft comprises at least one shaft bearing surface.
  • shaft bearing surface shall be understood especially as a surface provided to be in contact with a bearing housing, in order to bear the transmission shaft.
  • the at least one shaft bearing surface is arranged adjacent to the at least one bearing surface.
  • the transmission shaft can easily be held in a longitudinal direction.
  • Fig. 1 shows a view of a transmission shaft device for a hand-held power tool
  • Fig. 2 shows a view of a second embodiment of a transmission shaft device
  • Fig. 3 shows a view of a third embodiment of a transmission shaft device
  • Fig. 4 shows a view of a fourth embodiment of a transmission shaft device
  • Fig. 5 shows a view of a fifth embodiment of a transmission shaft device.
  • Figure 1 shows a transmission shaft device for a hand-held power tool, which comprises a transmission shaft 10a with two bearing surfaces 14a, and a wobble bearing 12a.
  • the transmission shaft 10a is permanently coupled with the wobble bearing 12a in a rotatably fixed manner. Furthermore, the transmission shaft 10a is inseparably attached to the wobble bearing 12a.
  • the transmission shaft 10a transmits a torque from an input source to an output (not shown).
  • the bearing surfaces 14a are provided to bear a pinion (not shown). In this context, a person skilled in the art would also consider to have the transmission shaft 10a borne by the bearing surface 14a.
  • the transmission shaft 10a is formed integrally with the wobble bearing 12a.
  • the transmission shaft 10a and the wobble bearing 12a are made in one part by a casting process.
  • a person skilled in the art would also consider other processes to join the transmission shaft 10a permanently to the wobble bearing 12a, e.g. welding processes, bonding processes or soldering processes.
  • the transmission shaft 10a comprises a generally cylindrically shaped portion 20a that is oriented at a flat angle relative to an axis 22a of the transmission shaft 10a.
  • the wobble bearing 12a has an elongated wobble arm 24a that is mounted in ball bearings (not shown) for rotating relative to the cylindrically shaped portion 20a, which permits the wobble arm 24a to move in a left and right direction relative to the cylindrical portion 20a when the transmission shaft 10a is rotated during operation.
  • the transmission shaft comprises two shaft bearing surfaces 32a, 34a.
  • the shaft bearing surfaces 32a, 34a are arranged adjacent to the bearing surfaces 14a.
  • a diameter 36a of the transmission shaft 10a at the bearing surfaces 14a is larger by 50% than a diameter 38a of the transmission shaft 10a at the shaft bearing surfaces 32a, 34a.
  • FIGS. 2 - 5 Further embodiments of the invention are shown in figures 2 - 5. The following descriptions are limited essentially to the differences between the five embodiments. To distinguish the embodiments the letter a in the reference numerals of the embodiment in figure 1 is replaced by the letters b - e in the reference numerals of the embodiments of figures 2 - 5. As for unmodified components, especially components with the same reference numerals, they can be referred back to the drawing and/or description of the first embodiment.
  • the transmission shaft device comprises a pinion 16b at an end 26b of a transmission shaft 10b, which is mounted on the transmission shaft 10b in a rotatably fixed manner.
  • the pinion 16b is formed integrally with the transmission shaft 10b.
  • a bearing surface 14b Seen from the end 26b in a longitudinal direction 30b, a bearing surface 14b is arranged at an opposite end 28b of the transmission shaft 10b.
  • a gearwheel (not shown) sets the transmission shaft 10b in rotation.
  • a wobble arm 24b of a wobble bearing 12b is moved in a reciprocating manner.
  • the wobble arm 24b drives a tool holder for a hammer or a saw (not shown).
  • Figures 3 and 4 show further views of a transmission shaft device, wherein, seen in a longitudinal direction, a pinion 16c, 16d is mounted on a transmission shaft 10c, lOd and arranged in front of a wobble bearing 12c, 12d.
  • Each pinion 16c, 16d is mounted on the transmission shaft 10c, lOd in a rotatably fixed manner at one end 26c, 28d. Seen from the end 26c, 28d in a longitudinal direction 30c, 30d, a bearing surface 14c, 14d is arranged at an opposite end 28c, 26d of the transmission shaft 10c, lOd.
  • a gearwheel (not shown) sets the transmission shaft 10c, lOd into rotation.
  • a wobble arm 24c, 24d of the wobble bearing 12c, 12d is moved in a reciprocating manner.
  • the wobble arm 24c, 24d drives a tool holder for a hammer or a saw (not shown).
  • a transmission shaft lOe comprises a first pinion 16e and a second pinion 18e.
  • the transmission shaft transmits a torque in a longitudinal direction 30e, between the first pinion 16e and the second pinion 18e.
  • the first pinion 16e and the second pinion 18e are pressed onto the transmission shaft lOe. Therefore, the first pinion 16e and the second pinion 18e are mounted on the transmission shaft lOe in a rotatably fixed manner.
  • the first pinion 16e is arranged in front of a wobble bearing 12e.
  • a force is transmitted by the transmission shaft lOe from the first pinion 16e to the second pinion 18e.
  • the second pinion 18e is arranged behind the wobble bearing 12e.
  • one pinion 16e, 18e is arranged on each side of the wobble bearing 12e.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Constituent Portions Of Griding Lathes, Driving, Sensing And Control (AREA)
  • General Details Of Gearings (AREA)

Abstract

L'invention concerne un dispositif d'arbre de transmission pour un outil électrique à main, comportant : un arbre de transmission (10a-10e) ayant au moins une surface d'appui (14a-14e) à des fins de montage d'un pignon (16c-16e, 18e) et/ou d'au moins un pignon intégral (16b), et un palier oscillant (12a-12e) ; l'arbre de transmission (10a-10e) comportant au moins une partie qui est accouplée en permanence avec le palier oscillant (12a-12e) d'une manière fixe et rotative.
PCT/CN2011/071302 2011-02-25 2011-02-25 Dispositif d'arbre de transmission Ceased WO2012113152A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2011800587814A CN103249529A (zh) 2011-02-25 2011-02-25 传动轴装置
PCT/CN2011/071302 WO2012113152A1 (fr) 2011-02-25 2011-02-25 Dispositif d'arbre de transmission

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2011/071302 WO2012113152A1 (fr) 2011-02-25 2011-02-25 Dispositif d'arbre de transmission

Publications (1)

Publication Number Publication Date
WO2012113152A1 true WO2012113152A1 (fr) 2012-08-30

Family

ID=46720097

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2011/071302 Ceased WO2012113152A1 (fr) 2011-02-25 2011-02-25 Dispositif d'arbre de transmission

Country Status (2)

Country Link
CN (1) CN103249529A (fr)
WO (1) WO2012113152A1 (fr)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0847837A2 (fr) * 1996-12-13 1998-06-17 Robert Bosch Gmbh Transmission à plusieurs vitesses pour un outil à main motorisé
CN1532028A (zh) * 2003-03-24 2004-09-29 罗伯特・博施有限公司 手操作式电动工具机
DE102006061600A1 (de) * 2006-12-27 2008-07-03 Metabowerke Gmbh Elektrohandwerkzeuggerät
CN101641187A (zh) * 2007-03-02 2010-02-03 罗伯特·博世有限公司 手持式工具机

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009001657A1 (de) * 2009-03-19 2010-09-23 Robert Bosch Gmbh Handwerkzeugmaschine

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0847837A2 (fr) * 1996-12-13 1998-06-17 Robert Bosch Gmbh Transmission à plusieurs vitesses pour un outil à main motorisé
CN1532028A (zh) * 2003-03-24 2004-09-29 罗伯特・博施有限公司 手操作式电动工具机
DE102006061600A1 (de) * 2006-12-27 2008-07-03 Metabowerke Gmbh Elektrohandwerkzeuggerät
CN101641187A (zh) * 2007-03-02 2010-02-03 罗伯特·博世有限公司 手持式工具机

Also Published As

Publication number Publication date
CN103249529A (zh) 2013-08-14

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