WO2013078781A1 - Nouveau marteau électrique - Google Patents

Nouveau marteau électrique Download PDF

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Publication number
WO2013078781A1
WO2013078781A1 PCT/CN2012/070301 CN2012070301W WO2013078781A1 WO 2013078781 A1 WO2013078781 A1 WO 2013078781A1 CN 2012070301 W CN2012070301 W CN 2012070301W WO 2013078781 A1 WO2013078781 A1 WO 2013078781A1
Authority
WO
WIPO (PCT)
Prior art keywords
drill chuck
electric hammer
rotating sleeve
drill
pin hole
Prior art date
Application number
PCT/CN2012/070301
Other languages
English (en)
Chinese (zh)
Inventor
王文江
Original Assignee
浙江海王电器有限公司
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 浙江海王电器有限公司 filed Critical 浙江海王电器有限公司
Publication of WO2013078781A1 publication Critical patent/WO2013078781A1/fr

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D16/00—Portable percussive machines with superimposed rotation, the rotational movement of the output shaft of a motor being modified to generate axial impacts on the tool bit
    • 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 a power tool.
  • the electric hammer function drill bit 12 is clamped on the electric hammer to realize the concrete drilling operation.
  • drilling steel or wood refer to Fig. 2, Fig. 2A and 2B
  • the drill chuck 101 needs to be installed and disassembled.
  • the drill chuck is frequently installed and disassembled, which results in very inconvenient operation, and the connecting rod structure is adopted in the function of the electric drill.
  • the connection accuracy between the connecting rod and the drill head and the head portion of the electric hammer is poor, which is likely to cause a large jump, and thus the punching accuracy is low, and the user feels uncomfortable and the processing efficiency is low.
  • the invention provides a novel operation with convenient operation, high drilling precision and high processing efficiency. Electric hammer.
  • a new type of electric hammer includes a fuselage, a driving motor, a gear transmission mechanism, a rotating sleeve and an impact mechanism are mounted in the fuselage, the driving motor is connected with an input end of the gear transmission mechanism, and an output end of the gear transmission mechanism Connected to the rotating sleeve, the new battery further includes a drill chuck, the drill chuck is hollow, and the drill chuck is mounted by a fixed connection device
  • the rotating chuck is provided with a through hole through which the power hammer bit passes, the electric hammer bit is installed in the rotating sleeve, and the impact mechanism is located behind the electric hammer bit,
  • the outer wall of the drill chuck is provided with a clamping member for holding the electric drill bit.
  • the drill chuck is a hand-tight drill chuck and a wrench-type drill chuck with a clamping size of 6-20 mm.
  • the fixed connection device includes a spline and a keyway, the outer wall of the rotating sleeve is provided with a spline, and an inner wall of the drill chuck is provided with a keyway that cooperates with the spline, and the spline is nested in the keyway .
  • the rotating sleeve is provided with a first pin hole
  • the drill chuck is provided with a second pin hole
  • the fixing pin is sequentially installed in the first pin hole and the second pin hole
  • the first cylindrical pin hole is further opened
  • the drill chuck is provided with a second cylindrical pin hole
  • the cylindrical pin is sequentially installed in the first cylindrical pin hole and the second cylindrical pin hole.
  • the fixed connecting device includes an internal thread and an external thread
  • the outer wall of the rotating sleeve is provided with an external thread
  • an inner wall of the drill chuck is provided with an internal thread that cooperates with the external thread
  • the external thread is installed at Inside the internal thread
  • the fixed connecting device comprises an inner tapered surface and an outer tapered surface, wherein the outer wall of the rotating sleeve is provided with an outer tapered surface, and an inner wall of the drill chuck is provided with an inner tapered surface that cooperates with the outer tapered surface,
  • the outer tapered surface is mounted within the inner tapered surface.
  • the fixed connecting device comprises a pin
  • the outer wall of the rotating sleeve is set on the inner wall of the drill chuck
  • the rotating sleeve has a first pin hole
  • the drill chuck has a second pin a hole
  • the pin is sequentially installed in the first pin hole and the second pin hole
  • the rotating sleeve is further provided with a first cylindrical pin hole
  • the drill chuck has a second cylindrical pin hole
  • the fixed connection device can also be implemented in other ways.
  • the fixing sleeve is located at the rear of the drill chuck and is disposed on the drill chuck and the rotating sleeve.
  • the fixing sleeve is provided with a fixing ring, and one end of the return spring is mounted on the fixing ring, the return spring The other end is mounted on the rotating sleeve; the fixing sleeve simultaneously blocks the pin for axially positioning the drill chuck and the rotating sleeve and the cylindrical pin for axially positioning the hammer bit.
  • the drill chuck is externally mounted with an external dustproof system
  • the outer dustproof system includes a sealing member and a fixed head
  • the fixed head is assembled at a front portion of the drill chuck
  • the sealing member is assembled on the electric hammer drill bit. Outer wall.
  • the drill chuck is internally provided with an internal dustproof system, and the inner dustproof system includes a sealing member and a fixing sleeve.
  • the sealing member is sleeved on an outer wall of the electric hammer drill bit, and the fixing sleeve is located at an inner wall of the drill chuck.
  • the beneficial effects of the invention are mainly manifested in: the connection between the fuselage part and the drill chuck through various fixed manners, realizes that a power tool can directly mount the hammer hammer drill bit without disassembling the drill chuck.
  • Different drill bits enable easy and fast drilling operations and improve work efficiency.
  • With fixed connection devices various types of drill chucks can be quickly mounted to or removed from power tools. Easy to operate and fast.
  • DRAWINGS Fig. 2B is a structural view showing a conventional electric hammer clamping ordinary twist drill.
  • Figure 3 is a perspective view of a power tool in accordance with a preferred embodiment of the present invention, showing the machine head divided into a wrench drill chuck.
  • Figure 4 is a perspective view of the power tool of the present invention showing the machine head divided into hand-tight drill chucks.
  • Figure 5 is a top plan view of the power tool of Figure 3.
  • Figure 6 is a plan view of the power tool of Figure 4.
  • Figure 7 is a structural view of the power tool of Figure 3, showing the machine head divided into a wrench type drill chuck.
  • Figure 7A is a cross-sectional view of the power tool of Figure 5 taken along the line A-A, showing the nose portion as a wrench drill chuck.
  • Figure 7B is a partial perspective view of the structural view of the power tool of Figure 3 showing the connection of the wrench drill chuck and the rotating sleeve in the form of a key.
  • Figure 8 is a structural view of the power tool of Figure 4, showing the machine head divided into hand-tight drill chucks.
  • Figure 8A is a cross-sectional view of the power tool of Figure 6 taken along the line A-A, showing the hand portion as a hand-tight drill chuck.
  • Figure 8B is a partial perspective view of the structural view of the power tool of Figure 6, showing the connection of the hand-tight drill chuck to the rotating sleeve retaining means in the form of a key.
  • Fig. 9 is a structural view showing a power tool according to a second embodiment of the present invention, in which the body portion and the head portion (drill chuck) fixing means are screwed.
  • Fig. 9A is a cross-sectional view showing a power tool according to a second embodiment of the present invention.
  • Figure 9B is a partial perspective view of the structural view of the power tool of Figure 9 showing the connection of the wrench-type drill chuck to the rotating sleeve retaining means in the form of a thread.
  • Figure 10 is a structural view of a power tool according to a third embodiment of the present invention, showing a conical connection between a fuselage portion and a nose portion (drill chuck) fixing device.
  • Fig. 10A is a cross-sectional view showing a power tool according to a third embodiment of the present invention.
  • Figure 10B is a partial perspective view of the structural view of the power tool of Figure 10, showing the tapered engagement of the wrench-type drill chuck and the rotating sleeve fixture.
  • Fig. 11 is a structural view showing a power tool according to a fourth embodiment of the present invention, in which the body portion and the head portion (drill chuck) fixing means are pinned.
  • Fig. 11A is a cross-sectional view showing a power tool according to a fourth embodiment of the present invention.
  • Figure 11B is a partial perspective view of the structural view of the power tool of Figure 11 showing the pin hand drill chuck and the rotating sleeve fixture being pinned.
  • Fig. 12 is a perspective view showing the electric power tool of the present invention for holding a conventional twist drill, in which the head portion (wrench type drill chuck) is held by a conventional twist drill.
  • Fig. 12A is a cross-sectional view showing the electric power tool of the present invention for holding a conventional twist drill, in which the head portion (wrench type drill chuck) is held by a conventional twist drill.
  • a new type of electric hammer includes a fuselage 23, and a driving motor, a gear transmission mechanism, a rotating sleeve 39 and an impact mechanism 42 are mounted in the body 23, and the driving motor and the gear transmission mechanism are provided.
  • the input end of the gear transmission is connected to the rotating sleeve 39.
  • the power tool further includes a drill chuck 22, the drill chuck 22 is hollow, and the drill chuck 22 is fixedly connected.
  • the drill chuck 22 is provided with a through hole through which the power hammer bit 21 passes, the electric hammer bit is installed in the rotating sleeve 39, and the impact mechanism 42 is located in the electric Behind the hammer bit 21, the outer wall of the drill chuck is provided with a clamping member for holding an electric drill bit, and the clamping member can be assembled Other drill bits such as twist drills.
  • the drill chuck is a hand-tight drill chuck and a wrench drill chuck with a clamping gauge of 6-20 mm.
  • the above are two common ways. Of course, other ways can be implemented.
  • FIG 3 illustrates a power tool 20 in a preferred embodiment of the present invention.
  • power tool 20 includes a fuselage 23 and a drill chuck 22, a motor 27 is disposed within the fuselage 23, and a switch 24 is mounted external to the fuselage 23 for operation by a user The switch 24 controls the opening and closing of the motor 27.
  • the power tool 20 includes an AC power cord 25 extending from the fuselage section 23 to supply power to the motor via an external AC power source.
  • AC power cord 25 extending from the fuselage section 23 to supply power to the motor via an external AC power source.
  • other methods of powering the motor such as a DC power source, may also be considered.
  • the electric hammer bit 21 passes through the inner through hole of the drill chuck 22 and is directly fitted into the rotary sleeve 39 of the body portion 23.
  • the movement of the motor 27 can be transmitted to the hammer bit 21 by an internal motion transmission mechanism, thereby driving the hammer bit 21 to operate the object.
  • the fuselage portion 23 and the drill chuck 22 may be two members that are independent of each other, or may be a single member that is integrated together.
  • the nose portion is shown divided into a wrench-type drill chuck 22.
  • the clamping specifications include: 6-20mm, the specific clamping size specifications are 6mm, 10mm, 13mm, 20mm.
  • FIG 5B there is shown a toggle connection between the wrench and the swivel sleeve.
  • the nose portion is shown divided into a hand-tight drill chuck 26.
  • the clamping specifications include: 6-20mm, the specific clamping size specifications are 6mm, 10mm, 13mm, 20mm.
  • FIG 6B there is shown a hand-tight drill chuck and a swivel sleeve in a keyed connection.
  • a motor 27 drives the first gear 40, the second gear 41, The third gear 43, the fourth gear 44, the rotating sleeve 39, and the drill chuck 22 output torque to realize the rotary motion of the hammer bit 21.
  • the impact mechanism 42 is driven to reciprocate the piston 51 in the cylinder 52, so that the hammer 50 continuously strikes the hammer bit 21.
  • the fixing sleeve 36 is pressed, and the drill chuck 22 is attached to the rotating sleeve 39 of the body portion 23 by means of a key.
  • the drill chuck 22 is coupled to the rotating sleeve 39 to transmit torque for rotational movement, while the pin 33 is used to axially secure the drill chuck 22 and the rotating sleeve 39 to prevent the drill chuck 22 from coming loose.
  • FIG. 7 and 7A show that the front end of the drill chuck 22 has a dustproof system fixed to the drill chuck 22.
  • the fixing head 30 has a double sealing member 31 and a hammer bit 21 for dustproofing.
  • the fixed head is fixed to the drill chuck 22. Preventing dust and foreign matter from intruding during work to damage the drill chuck 22, causing the drill chuck 22 to be unable to hold other drills.
  • Figure 7 and Figure 7A show that the drill chuck 22 has a dustproof system inside, internal protection
  • the dust system includes a sealing member 34 and a fixing sleeve 35 that cooperates with the hammer bit 21 to prevent dust. Preventing dust, foreign matter and oil from the outside of the machine 23 from infiltrating into the drill chuck 22 during operation, causing the drill chuck 22 not to hold other drill bits.
  • Fig. 7A in order to facilitate various specifications of the electric hammer drill bit, it can be assembled to the body through the through hole of the wrench drill chuck. At the same time, there is sufficient working drilling depth for the assembled hammer bit.
  • the distance D from the foremost end portion of the wrench bit to the fuselage portion is 67 mm, and generally, the distance D ranges from 40 mm to 100 mm.
  • the distance D ranges from 40 mm to 100 mm.
  • the outer diameter C of the key portion of the connection between the nose portion (handle drill chuck) and the rotating sleeve key is 15.5. Mm, generally, the outer diameter D ranges from 12 mm to 50 mm.
  • the electric hammer drill bit in order to facilitate various specifications of the electric hammer drill bit, it can be assembled to the body through the through hole of the hand-tight drill chuck. At the same time, there is sufficient working drilling depth for the assembled hammer drill.
  • the distance D1 from the foremost end portion of the hand-tight drill chuck to the fuselage portion is 68 mm, and generally, the distance D1 ranges from 40 mm to 100 mm.
  • the key outer diameter C of the connection between the hand-tight drill chuck and the rotating sleeve key is 15.5 mm, generally, outside The diameter C ranges from 12 mm to 50 mm.
  • the electric hammer bit 21 is directly fitted into the rotating sleeve 39 through the inner through hole of the drill chuck 22, and is axially fixed in the rotating sleeve 39 by the cylindrical pin 32, so that the hammer bit 21 is not loosened. Take off.
  • the fixing sleeve 36 is loosened, the fixing sleeve 36 is automatically reset by the return spring 38, and the fixing ring 37 in the fixing sleeve 36 simultaneously blocks the pin 33 of the axially fixed working head and the cylindrical pin 32 of the axial fixed electric hammer bit 21 to prevent The pin 33 is loose from the cylindrical pin 32.
  • the fixing sleeve 36 When it is necessary to remove the hammer bit 21 from the whole machine 20, the fixing sleeve 36 is first pressed, and the fixing sleeve 36 and the fixing ring 37 are moved downward against the elastic force of the return spring 38. When the fixing sleeve 36 is moved downward, the cylindrical pin 32 of the axially fixed hammer bit 21 can be moved outward, and the hammer bit 21 can be pulled out at this time.
  • the fixing sleeve 36 When it is necessary to remove the drill chuck 22 from the complete machine 20, the fixing sleeve 36 is first pressed, and the fixing sleeve 36 and the fixing ring 37 are moved downward against the elastic force of the return spring 38. When the fixing sleeve 36 is moved downward, the pin 33 of the drill chuck 22 is axially fixed, and the drill chuck 22 can be removed conveniently and quickly after the pin 33 is removed.
  • FIG. 9A and FIG. 9B show still another embodiment in which the drill chuck 22 and the fuselage portion 23 are fixed by screwing, and the hammer bit 21 is directly assembled through the inner through hole of the drill chuck 22.
  • the function of the hammer is achieved by turning into the rotating sleeve 39 on the fuselage portion 23.
  • Fig. 7A in order to facilitate the drilling chuck, it can be easily assembled to the body.
  • the thread outer diameter E of the threaded connection of the drill chuck to the rotary sleeve is 14 mm, and generally, the thread outer diameter E ranges from 12 mm to 50 mm.
  • FIG. 10A and FIG. 10B show still another embodiment in which the rotary chuck 29 and the rotary sleeve 39 in the fuselage portion 23 are fixed by a tapered connection while the hammer bit 21 passes through the drill chuck 22
  • the inner through hole is directly fitted into the rotary sleeve 39 on the fuselage portion 23, and the electric hammer is fixed by axially fixing the electric hammer drill to the rotary sleeve 39 through the steel ball 48.
  • Fig. 8A in order to facilitate the drilling chuck, it can be easily assembled to the body.
  • the tapered surface of the drill chuck and the rotating sleeve has a large diameter C of 15.5 mm, and generally, the outer diameter C of the tapered surface ranges from 12 mm to 50 mm.
  • Figure 11, Figure 11A and Figure 11B show yet another embodiment in which the drill chuck 22 and the rotating sleeve 39 in the fuselage portion 23 are fixed by means of a pin connection while the hammer bit 21 passes through the drill chuck 22.
  • the inner through hole is directly fitted into the rotary sleeve 39 on the fuselage portion 23, and the cylindrical hammer pin 32 is used to axially fix the electric hammer bit to the rotary sleeve 39 to realize the function of the hammer.
  • the outer diameter C of the drill chuck and the rotating sleeve pin connection form is 15.5 mm, and generally, the outer diameter C ranges from 12 mm to 50 mm.
  • FIG. 4 and FIG. 7A and FIG. 8A show that the electric tool of the present invention can directly assemble the electric hammer bit 21 through the inner through hole of the drill chuck 22 to the fuselage 23 without disassembling the drill chuck 22. Drilling operation with hammer function.
  • Figures 12 and 12A show the drill chuck 22 directly gripping the conventional twist drill bit 100.
  • FIG. 1A and 1B show a conventional electric hammer holding electric hammer drill.
  • FIG. 2A, FIG. 2B show that the ordinary electric hammer needs to be additionally connected with the drill chuck 101 by the connecting rod 102, and then assembled on the electric hammer, and then the twist drill bit 100 or other drill bit is clamped on the drill chuck to realize Drilling operations.
  • 3A, FIG. 7A, FIG. 7A, FIG. 12 and FIG. 12A with the conventional electric hammer, FIG. 1A, FIG. 1B, FIG. 2, FIG. 2A and FIG. 2B can embody the present invention in comparison with a conventional electric hammer.
  • a variety of drill bits are not only convenient, quick, but also improve work efficiency while improving accuracy.
  • the drill chuck is connected to the fuselage, and the electric hammer drill bit is directly assembled into the rotating sleeve of the fuselage portion through the inner through hole of the drill chuck to finally realize the drilling function of the electric hammer.
  • the fixing device is not limited to the mechanical structure, and may be other devices that achieve a fixed holding function by magnetic force or the like.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)

Abstract

La présente invention concerne un nouveau marteau électrique comprenant un corps de machine (23). Un moteur d'entraînement, un mécanisme d'entraînement par engrenages, un manchon rotatif (39), et un mécanisme d'impact (42) sont montés dans le corps de machine. Le moteur d'entraînement est raccordé à une extrémité d'entrée du mécanisme d'entraînement par engrenages. Une extrémité de sortie du mécanisme d'entraînement par engrenages est raccordée au manchon rotatif (39). L'outil électrique comprend, en outre, un mandrin porte-mèche (22). Le mandrin porte-mèche (22) est creux. Le mandrin porte-mèche (22) est monté sur le manchon rotatif (39) à travers un dispositif de raccordement par fixation. Le mandrin porte-mèche (22) est pourvu d'un trou traversant qui est traversé par la mèche du marteau. La mèche du marteau électrique est montée dans le manchon rotatif (39). Le mécanisme d'impact (42) est situé derrière la mèche de marteau électrique. Une paroi externe du mandrin porte-mèche est pourvue d'un élément de maintien permettant de maintenir la mèche de marteau électrique. Le nouveau marteau électrique rend l'utilisation pratique et confortable, l'alésage du trou extrêmement précis et est un nouveau marteau électrique présentant une efficacité de traitement élevée.
PCT/CN2012/070301 2011-12-02 2012-01-13 Nouveau marteau électrique WO2013078781A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110430526.X 2011-12-02
CN201110430526.XA CN102513978B (zh) 2011-12-02 2011-12-02 两用钻头夹具及使用它的电锤钻

Publications (1)

Publication Number Publication Date
WO2013078781A1 true WO2013078781A1 (fr) 2013-06-06

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/070301 WO2013078781A1 (fr) 2011-12-02 2012-01-13 Nouveau marteau électrique

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Country Link
CN (1) CN102513978B (fr)
WO (1) WO2013078781A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106625440A (zh) * 2017-02-21 2017-05-10 陈晶晶 一种建筑打孔用电锤支架
CN117161446B (zh) * 2023-10-10 2024-05-28 东台升华工具有限公司 一种方便拆卸的五金加工钻孔机用钻头

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Publication number Priority date Publication date Assignee Title
CN103264374B (zh) * 2013-06-17 2016-01-20 浙江海王电器有限公司 建工钻头与直柄钻头一体互换锁合钻夹头
CN105965072B (zh) * 2016-06-30 2018-03-06 桂林电子科技大学 一种麻花钻头自动装卸装置
CN212706597U (zh) * 2018-02-14 2021-03-16 苏州宝时得电动工具有限公司 手持工具
CN112223218A (zh) * 2020-10-23 2021-01-15 杭州兔研工业设计有限公司 一种电镐用冲击头及电镐
CN114055639A (zh) * 2021-11-19 2022-02-18 中国建筑第五工程局有限公司 一种可拆卸式合金钻头凿毛电锤一体机

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GB2046653A (en) * 1979-03-03 1980-11-19 Fosroc International Ltd Impact Tool Holder
US5470084A (en) * 1993-12-16 1995-11-28 Robert Bosch Gmbh Hand drill, in particular hammer drill
CN1149850A (zh) * 1994-06-07 1997-05-14 罗伯特-博希股份公司 用于手持式钻孔机尤其用于冲击钻机的工具夹以及带工具夹的手持式钻孔机
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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106625440A (zh) * 2017-02-21 2017-05-10 陈晶晶 一种建筑打孔用电锤支架
CN106625440B (zh) * 2017-02-21 2023-08-04 聊城市茌平区豪杰建筑工程有限公司 一种建筑打孔用电锤支架
CN117161446B (zh) * 2023-10-10 2024-05-28 东台升华工具有限公司 一种方便拆卸的五金加工钻孔机用钻头

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CN102513978B (zh) 2015-01-21
CN102513978A (zh) 2012-06-27

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