CN107486821B - Double-motor driven impact electric hammer - Google Patents
Double-motor driven impact electric hammer Download PDFInfo
- Publication number
- CN107486821B CN107486821B CN201710788138.6A CN201710788138A CN107486821B CN 107486821 B CN107486821 B CN 107486821B CN 201710788138 A CN201710788138 A CN 201710788138A CN 107486821 B CN107486821 B CN 107486821B
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- CN
- China
- Prior art keywords
- motor
- installation cylinder
- tail end
- hammer
- electric hammer
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Classifications
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- 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
- B25D11/10—Means for driving the impulse member comprising a cam mechanism
- B25D11/102—Means for driving the impulse member comprising a cam mechanism the rotating axis of the cam member being coaxial with the axis of the tool
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- 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
Abstract
The invention discloses a double-motor driven impact electric hammer, which comprises: the novel multifunctional electric wrench is characterized by comprising a first installation cylinder, a second installation cylinder, a first motor and a second motor, wherein the first motor is concentrically arranged in the first installation cylinder, a push-pull rod extending into the second installation cylinder is arranged at the tail end of an output shaft of the first motor, a hammer head located at the front end of the second installation cylinder is arranged at the tail end of the push-pull rod, a reset spring connected with the end portion of the output shaft of the first motor is arranged in the second installation cylinder, a handle shell is arranged on one side of the first installation cylinder, the second motor is arranged in the handle shell, and a rubber cam located at the tail end of the first motor is arranged at the tail end of a rotating shaft of the second motor. Through the mode, the impact electric hammer driven by the double motors provided by the invention drives the rubber cam to rotate by utilizing the rotation of the rotating shaft of the second motor, and drives the first motor to axially move under the action of the return spring, so that the impact electric hammer is simple in structure and high in working stability.
Description
Technical Field
The invention relates to the field of electric hammers, in particular to a double-motor driven impact electric hammer.
Background
The electric hammer is mainly used for drilling holes in concrete, floor slabs, brick walls and stone, and is also a multifunctional electric hammer which is adjusted to a proper position and can be used for replacing a common electric drill or an electric pick by being matched with a proper drill bit.
The drill bit of the electric hammer can rapidly punch holes on materials such as cement concrete, stone and the like with high brittleness because the drill bit of the electric hammer also generates rapid reciprocating motion (frequent impact) along the direction of the electric drill rod while rotating, but the drill bit of the electric hammer and the driving structure of the reciprocating motion are complex, and faults are easy to occur, so that the durability is poor.
Disclosure of Invention
The invention mainly solves the technical problem of providing the impact electric hammer driven by two motors, thereby improving the structural stability and reducing the failure rate.
In order to solve the technical problems, the invention adopts a technical scheme that: there is provided a dual motor driven impact electric hammer comprising: the novel hammer is characterized by comprising a first installation cylinder, a second installation cylinder, a first motor and a second motor, wherein the second installation cylinder is concentrically arranged at the front end of the first installation cylinder, the first motor is concentrically arranged in the first installation cylinder, a push-pull rod extending into the second installation cylinder is arranged at the tail end of an output shaft of the first motor, a hammer head located at the front end of the second installation cylinder is arranged at the tail end of the push-pull rod, a reset spring connected with the end portion of the output shaft of the first motor is arranged in the second installation cylinder, a handle shell is arranged on one side of the first installation cylinder, the second motor is arranged in the handle shell, and a rubber cam located at the tail end of the first motor is arranged at the tail end of a rotating shaft of the second motor.
In a preferred embodiment of the present invention, the inner wall of the first mounting cylinder is provided with slide rails located around the first motor.
In a preferred embodiment of the present invention, sliding grooves corresponding to the sliding rails are disposed around the first motor.
In a preferred embodiment of the invention, the front end of the second mounting barrel is provided with a blocking ring, and the surface of the blocking ring is provided with a buffer pad.
In a preferred embodiment of the present invention, a protection plate is disposed at the rear end of the first motor.
In a preferred embodiment of the present invention, a bearing corresponding to the output shaft of the first motor is disposed in the first mounting cylinder.
The invention has the beneficial effects that: according to the impact electric hammer driven by the double motors, the output shaft of the first motor rotates to drive the push-pull rod and the hammer head to rotate, the rotating shaft of the second motor rotates to drive the rubber cam to rotate, and the first motor is driven to axially move under the action of the return spring to repeatedly impact the hammer head.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic structural view of a preferred embodiment of a dual motor driven impact hammer of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, an embodiment of the present invention includes:
a dual motor driven impact hammer comprising: the hammer comprises a first mounting cylinder 6, a second mounting cylinder 13, a first motor 3 and a second motor 2, wherein the second mounting cylinder 13 is concentrically arranged at the front end of the first mounting cylinder 6, the first motor 3 is concentrically arranged in the first mounting cylinder 6, a push-pull rod 12 extending into the second mounting cylinder 13 is arranged at the tail end of an output shaft of the first motor 3, a hammer head 11 located at the front end of the second mounting cylinder 13 is arranged at the tail end of the push-pull rod 12, and the push-pull rod 12 and the hammer head 11 are driven to rotate by rotation of an output shaft 7 of the first motor 3.
The handle is characterized in that a return spring 8 connected with the end part of an output shaft 7 of the first motor 3 is arranged in the second mounting cylinder 13, a handle shell 1 is arranged on one side of the first mounting cylinder 6, the second motor 2 is arranged in the handle shell 1, and a rubber cam 4 positioned at the tail end of the first motor 3 is arranged at the tail end of a rotating shaft of the second motor 2. The rotating shaft of the second motor 2 is rotated to drive the rubber cam 4 to rotate, and under the action of the reset spring 8, the first motor 3 is driven to axially move, so that repeated impact of the hammer head 11 is performed, and the hammer head device is simple in structure, high in working stability and convenient to maintain.
Be provided with on the 6 inner walls of first installation section of thick bamboo and be located first motor 3 slide rail 5 all around, first motor 3 is provided with the spout that corresponds with slide rail 5 all around, and the cooperation of slide rail 5 and spout has promoted first motor 3 axial displacement's stability, avoids the rotation problem.
The front end of the second mounting tube 13 is provided with a plugging ring 9, the surface of the plugging ring 9 is provided with a buffer pad 10, and the buffer pad 10 reduces the impact of a hammer 11 on the plugging ring 9.
The tail end of the first motor 3 is provided with a protection plate 15, the protection plate 15 is in contact with the rubber cam 4, a stainless steel plate can be adopted, and the wear resistance is good.
And a bearing 14 corresponding to the output shaft 7 of the first motor 3 is arranged in the first mounting cylinder 6, so that the rotating movement stability of the output shaft 7 is improved.
In summary, the impact electric hammer driven by two motors provided by the invention utilizes the first motor 3 and the second motor 2 to respectively drive the hammer head 11 to rotate and impact reciprocally, has a compact structure and high stability, and reduces the maintenance frequency and cost.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications of equivalent structures and equivalent processes, which are made by the present specification, or directly or indirectly applied to other related technical fields, are included in the scope of the present invention.
Claims (5)
1. A dual motor driven impact hammer, comprising: the novel multifunctional electric wrench is characterized by comprising a first installation cylinder, a second installation cylinder, a first motor and a second motor, wherein the second installation cylinder is concentrically arranged at the front end of the first installation cylinder, the first motor is concentrically arranged in the first installation cylinder, the tail end of an output shaft of the first motor is provided with a push-pull rod extending into the second installation cylinder, the tail end of the push-pull rod is provided with a hammer head located at the front end of the second installation cylinder, a reset spring connected with the end portion of the output shaft of the first motor is arranged in the second installation cylinder, one side of the first installation cylinder is provided with a handle shell, the second motor is arranged in the handle shell, the tail end of a rotating shaft of the second motor is provided with a rubber cam located at the tail end of the first motor, and the tail end of the first motor is provided.
2. The impact electric hammer driven by two motors of claim 1, wherein the inner wall of the first mounting cylinder is provided with slide rails positioned around the first motor.
3. The impact electric hammer driven by two motors of claim 2, wherein the first motor is provided with sliding grooves corresponding to the sliding rails around.
4. The dual motor driven impact hammer of claim 1, wherein the second mounting cylinder is provided at a front end thereof with a blocking ring, and a cushion is provided on a surface of the blocking ring.
5. The dual motor driven impact electric hammer of claim 1, wherein a bearing corresponding to the output shaft of the first motor is provided in the first mounting cylinder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710788138.6A CN107486821B (en) | 2017-09-05 | 2017-09-05 | Double-motor driven impact electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710788138.6A CN107486821B (en) | 2017-09-05 | 2017-09-05 | Double-motor driven impact electric hammer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107486821A CN107486821A (en) | 2017-12-19 |
| CN107486821B true CN107486821B (en) | 2020-08-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710788138.6A Active CN107486821B (en) | 2017-09-05 | 2017-09-05 | Double-motor driven impact electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107486821B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108843036A (en) * | 2018-07-02 | 2018-11-20 | 布兰特·戈登·麦克阿瑟 | A kind of chisel |
| WO2022095192A1 (en) * | 2020-11-05 | 2022-05-12 | 江苏铁锚工具有限公司 | Dual-motor alternating current/direct current brushless electric hammer |
| WO2022159471A1 (en) | 2021-01-19 | 2022-07-28 | Milwaukee Electric Tool Corporation | Rotary power tool |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6347494A (en) * | 1986-08-18 | 1988-02-29 | 株式会社 リツト | Air shock tool |
| DE3712456A1 (en) * | 1987-04-11 | 1988-10-27 | Licentia Gmbh | Electropneumatically operating rotary percussion hammer drill |
| CN2490318Y (en) * | 2001-06-20 | 2002-05-08 | 张书华 | Portable gas drawing-off detector |
| CN102581815A (en) * | 2012-03-27 | 2012-07-18 | 彭称根 | Improved chargeable electric hammer |
| CN104227666A (en) * | 2013-06-20 | 2014-12-24 | 苏州宝时得电动工具有限公司 | Electric hammer |
| CN203542293U (en) * | 2013-07-31 | 2014-04-16 | 陈靖忠 | Drill collar inner step grinding machine |
| CN104985567B (en) * | 2015-06-10 | 2017-03-01 | 重庆大学 | NEW TYPE OF COMPOSITE impact drill |
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2017
- 2017-09-05 CN CN201710788138.6A patent/CN107486821B/en active Active
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| Publication number | Publication date |
|---|---|
| CN107486821A (en) | 2017-12-19 |
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