WO2022095192A1 - Marteau électrique sans balai à courant alternatif/courant continu à double moteur - Google Patents

Marteau électrique sans balai à courant alternatif/courant continu à double moteur Download PDF

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Publication number
WO2022095192A1
WO2022095192A1 PCT/CN2020/134167 CN2020134167W WO2022095192A1 WO 2022095192 A1 WO2022095192 A1 WO 2022095192A1 CN 2020134167 W CN2020134167 W CN 2020134167W WO 2022095192 A1 WO2022095192 A1 WO 2022095192A1
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WO
WIPO (PCT)
Prior art keywords
motor
gear
motor shaft
sleeved
hammer
Prior art date
Application number
PCT/CN2020/134167
Other languages
English (en)
Chinese (zh)
Inventor
周海春
Original Assignee
江苏铁锚工具有限公司
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 江苏铁锚工具有限公司 filed Critical 江苏铁锚工具有限公司
Publication of WO2022095192A1 publication Critical patent/WO2022095192A1/fr

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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

Definitions

  • the invention relates to the technical field of electric hammers, in particular to a dual-motor AC-DC brushless electric hammer.
  • the electric hammer is an electric rotary hammer drill with a pneumatic hammer mechanism.
  • the electric hammer uses the principle of piston movement, and the compressed gas impacts the drill bit without much effort by hand, and can open 6-100mm holes in hard materials such as concrete, bricks, and stones.
  • the electric hammer adopts multi-gear shifting clutch to realize the pick, turn, hammer drill, and fix the angle of the electric hammer.
  • the disadvantage of this transmission is that the shifting consumes the efficiency of the motor, and the constant speed of the machine has certain limitations for different drill bits. sex.
  • the purpose of the present invention is to provide a dual-motor AC-DC brushless electric hammer to solve one or more of the above-mentioned problems in the prior art.
  • the present invention provides a dual-motor AC and DC brushless electric hammer, which includes a casing and a mechanical head, the mechanical head is arranged at the front end of the casing, the mechanical head includes a sliding sleeve and a main gear, and the main gear is tightly connected to the
  • the outer periphery of the sliding sleeve and the casing are provided with a first motor, a second motor, an eccentric, a connecting rod, a piston and a hammer block.
  • the first motor includes a rotor, a first motor shaft and a first gear, so The rotor is sleeved on the outside of the first motor shaft and the rotor is fixedly connected with the first motor shaft, the first gear is sleeved on the outside of the first motor shaft, and the first gear is connected to the first motor shaft.
  • the first motor shaft is fixedly connected, the upper end of the first motor shaft is fixedly connected with the eccentric, the eccentric is hinged with the connecting rod, and the other end of the connecting rod is connected with the piston , the piston is connected with the hammer block, the left side of the hammer block is provided with a cylinder, the cylinder is fixedly arranged on the inner upper side of the casing, the inside of the cylinder is provided with an impactor, the The impactor is tightly connected with the sliding sleeve, the second motor includes a stator, a second motor shaft and a second gear, the stator is sleeved on the outside of the first motor shaft, and the stator is connected to the first motor shaft.
  • a motor shaft is fixedly connected, the second gear is sleeved on the outside of the second motor shaft, the second gear is fixedly connected to the second motor shaft, and the first gear is meshed with the second gear , the second gear meshes with the main gear.
  • a case handle and a battery pack are further included, the case handle is located on the right side of the case, and the battery pack is detachably connected to the case handle.
  • the first motor shaft is further sleeved with a first fan blade
  • the first fan blade is located above the rotor
  • the second motor shaft is further sleeved with a second fan blade
  • the second fan blade is sleeved.
  • the fan blades are located above the stator.
  • first motor and the second motor are arranged in parallel, the first gear and the second gear are in parallel shaft engagement, and the second gear is in mesh with the main gear intersecting shaft.
  • a handle bracket is further included, the handle bracket is fixed under the casing, and the handle bracket is arranged in parallel with the first motor.
  • the first motor and the second motor are arranged vertically, the first gear and the second gear are in mesh with an intersecting axis, and the second gear is in mesh with the main gear parallel to the axis.
  • the electric hammer of the present invention has four functions in one twist.
  • the pick, drill, hammer drill and fixed angle are all electronically adjusted, so that the efficiency loss is less, and the motor speed of the present invention can be adjusted.
  • FIG. 1 is a schematic structural diagram of a dual-motor AC-DC brushless hammer according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a dual-motor AC-DC brushless hammer according to an embodiment of the present invention
  • FIG. 3 is a schematic structural diagram of a dual-motor AC-DC brushless hammer according to an embodiment of the present invention
  • FIG. 4 is a schematic structural diagram of a dual-motor AC-DC brushless hammer according to an embodiment of the present invention.
  • installed should be construed broadly. For example, it may be a fixed connection, a detachable connection, or a unitary structure; it may be a mechanical connection, or an electrical connection; it may be directly connected, or indirectly connected through an intermediary, or between two devices, elements, or components. internal communication.
  • installed may be a fixed connection, a detachable connection, or a unitary structure; it may be a mechanical connection, or an electrical connection; it may be directly connected, or indirectly connected through an intermediary, or between two devices, elements, or components. internal communication.
  • a dual-motor AC/DC brushless hammer includes a casing 10, a mechanical head, a casing handle 81 and a battery pack 82.
  • the mechanical head is located at the front end 10 of the casing, and the mechanical head includes a sliding sleeve 20 and a main Gear 70, the main gear is tightly connected to the outer periphery of the sliding sleeve 20, the casing handle 81 is located on the right side of the casing 10, the battery pack 82 and the casing handle 81 are detachable connection, the casing 10 is provided with a first motor 30, a second motor 40, an eccentric 50, a connecting rod, a piston and a hammer block 60, and the first motor 30 includes a rotor 31, a first motor shaft and a first motor shaft.
  • a gear 32, the rotor 31 is sleeved on the outer side of the first motor shaft and the rotor 31 is fixedly connected with the first motor shaft, the first gear 32 is sleeved on the outer side of the first motor shaft
  • the outer side and the first gear 32 is fixedly connected with the first motor shaft, the upper end of the first motor shaft is fixedly connected with the eccentric wheel 50, the eccentric wheel 50 is hinged with the connecting rod, the The other end of the connecting rod is connected with the piston, the piston is connected with the hammer block 60 , and a cylinder is provided on the left of the hammer block 60 , and the cylinder is fixed on the inside of the casing 10 .
  • the second motor 40 includes a stator 41 , a second motor shaft and a second gear 42 , the stator 41 is sleeved on the outside of the first motor shaft, and the stator 41 is connected to the first motor
  • the shaft is fixedly connected
  • the second gear sleeve 42 is arranged on the outside of the second motor shaft
  • the second gear 42 is fixedly connected to the second motor shaft
  • the first gear 32 is connected to the second gear 42 meshes
  • the second gear 42 meshes with the main gear 70
  • the second motor shaft is also sleeved with a second fan blade 43
  • the second fan blade 43 is located above the stator 41 .
  • the handle bracket 90 also includes a handle bracket 81, the first motor 30 and the second motor 40 are arranged in parallel, the first gear 32 and the second gear 42 are engaged in parallel shafts, and the second gear 42 and the The main gear 70 is engaged with the intersecting axis, the handle bracket 90 is fixed under the casing 10 , and the handle bracket 90 is arranged in parallel with the first motor 30 .
  • the dual-motor AC/DC brushless hammer includes a casing 10, a mechanical head, a casing handle 81 and a battery pack 82, the mechanical head is arranged at the front end of the casing 10, and the mechanical head includes a sliding sleeve 20 and a main Gear 70, the main gear 70 is tightly connected to the outer periphery of the sliding sleeve 20, the casing handle 81 is located on the right side of the casing 10, the battery pack 82 and the casing handle 81 are detachable
  • the casing 10 is provided with a first motor 30, a second motor 40, an eccentric 50, a connecting rod, a piston and a hammer block, and the first motor 30 includes a rotor 31, a first motor shaft and a first Gear, the rotor 31 is sleeved on the outside of the first motor shaft and the rotor 31 is fixedly connected with the first motor shaft, the first gear is sleeved on the outside of the first motor shaft and is The first gear is
  • the piston One end is connected with the piston, the piston is connected with the hammer block 60, a cylinder is provided on the left of the hammer block 60, and the cylinder is fixed on the inner upper side of the casing 10, the The inside of the cylinder is provided with an impactor, the impactor is tightly connected with the sliding sleeve 20, the first motor shaft is also sleeved with a first fan blade 33, and the first fan blade 33 is located above the rotor 31,
  • the second motor 40 includes a stator 41, a second motor shaft and a second gear.
  • the stator 41 is sleeved on the outside of the first motor shaft and the stator 41 is fixedly connected to the first motor shaft, so
  • the second gear is sleeved on the outside of the second motor shaft, the second gear is fixedly connected with the second motor shaft, the first gear is meshed with the second gear, and the second gear is connected to the second motor shaft.
  • the main gear 70 is meshed, and the second motor shaft is also sleeved with a second fan blade 43 , and the second fan blade 43 is located to the left of the stator 41 .
  • first motor 30 and the second motor 40 are arranged vertically, the first gear and the second gear mesh with the intersecting axis, and the second gear meshes with the main gear 70 parallel to the axis.
  • the DC switch When in use, the DC switch is activated, the power of the battery pack is introduced into the driver, and the first motor is controlled to start to operate, which drives the first motor shaft to rotate, and drives the eccentric wheel to rotate together, thereby driving the piston and its inner hammer to move linearly in the sliding sleeve.
  • the hammer hits the impactor, and the impactor impacts the working bit; at the same time, the first motor shaft drives the first gear to rotate, the first gear drives the second gear to rotate, the second gear drives the main gear to rotate, and then drives the sliding sleeve Rotate, and then drive the working drill to rotate; the working drill rotates and impacts at the same time to achieve the drilling effect.
  • the first blade and the second blade rotate with the first motor shaft and the second motor shaft, respectively, and provide cooling air passages for the first motor and the second motor, respectively.
  • the electric hammer of the present invention has four functions in one twist.
  • the pick, drill, hammer drill and fixed angle are all electronically adjusted, so that the efficiency loss is less, and the motor speed of the present invention can be adjusted.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Abstract

Marteau électrique sans balai à courant alternatif/courant continu (CA/CC) à double moteur, comprenant un boîtier (10) et une tête mécanique. Un premier moteur (30) comprend un rotor (31), un premier arbre de moteur et un premier engrenage (32) ; le rotor (31) est emmanché sur un côté extérieur du premier arbre de moteur, et le premier engrenage (32) est emmanché sur un côté extérieur du premier arbre de moteur ; une extrémité supérieure du premier arbre de moteur est reliée de manière fixe à une roue excentrique (50), et la roue excentrique (50) est articulée sur une bielle ; l'autre extrémité de la bielle est reliée à un piston, et le piston est relié à un bloc de marteau (60) ; un cylindre est disposé sur le côté gauche du bloc de marteau (60), un concasseur à impact est disposé à l'intérieur du cylindre, et le concasseur à impact est relié de manière ajustée à un manchon coulissant (20). Un second moteur (40) comprend un stator (41), un second arbre de moteur et un second engrenage (42), le stator (41) est emmanché sur un côté extérieur du second arbre de moteur, et le second engrenage est emmanché sur un côté extérieur du second arbre de moteur ; et le premier engrenage (32) s'engrène avec le second engrenage (42), et le second engrenage (42) s'engrène avec un engrenage principal (70). Le marteau électrique a quatre fonctions en une seule torsion, et le scheidage, le forage, le forage au marteau perforateur et le réglage d'angle sont tous réglés électriquement, de telle sorte qu'il y a moins de perte d'efficacité ; de plus, dans la solution technique, la vitesse de rotation d'un moteur peut être réglée lorsque le marteau électrique frappe différents trépans.
PCT/CN2020/134167 2020-11-05 2020-12-07 Marteau électrique sans balai à courant alternatif/courant continu à double moteur WO2022095192A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202011222585.3 2020-11-05
CN202011222585 2020-11-05

Publications (1)

Publication Number Publication Date
WO2022095192A1 true WO2022095192A1 (fr) 2022-05-12

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PCT/CN2020/134167 WO2022095192A1 (fr) 2020-11-05 2020-12-07 Marteau électrique sans balai à courant alternatif/courant continu à double moteur

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200974231Y (zh) * 2006-11-20 2007-11-14 何乃镇 一种电锤钻
CN106335031A (zh) * 2015-07-15 2017-01-18 苏州宝时得电动工具有限公司 电锤
CN107486821A (zh) * 2017-09-05 2017-12-19 苏州艾乐蒙特机电科技有限公司 一种双电机驱动的冲击电锤
US10328559B2 (en) * 2014-12-04 2019-06-25 Black & Decker Inc. Drill

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN200974231Y (zh) * 2006-11-20 2007-11-14 何乃镇 一种电锤钻
US10328559B2 (en) * 2014-12-04 2019-06-25 Black & Decker Inc. Drill
CN106335031A (zh) * 2015-07-15 2017-01-18 苏州宝时得电动工具有限公司 电锤
CN107486821A (zh) * 2017-09-05 2017-12-19 苏州艾乐蒙特机电科技有限公司 一种双电机驱动的冲击电锤

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