CN104942762A - Electric hammer - Google Patents
Electric hammer Download PDFInfo
- Publication number
- CN104942762A CN104942762A CN201510317529.0A CN201510317529A CN104942762A CN 104942762 A CN104942762 A CN 104942762A CN 201510317529 A CN201510317529 A CN 201510317529A CN 104942762 A CN104942762 A CN 104942762A
- Authority
- CN
- China
- Prior art keywords
- jackshaft
- gear
- electric hammer
- rotation
- main shaft
- 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.)
- Pending
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D9/00—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously
- B25D9/04—Portable percussive tools with fluid-pressure drive, i.e. driven directly by fluids, e.g. having several percussive tool bits operated simultaneously of the hammer piston type, i.e. in which the tool bit or anvil is hit by an impulse member
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D17/00—Details of, or accessories for, portable power-driven percussive tools
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
- B25D—PERCUSSIVE TOOLS
- B25D2216/00—Details of 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Fluid Mechanics (AREA)
- Percussive Tools And Related Accessories (AREA)
Abstract
The invention provides an electric hammer which comprises a tool maintaining portion, a driving portion and a transmission mechanism for transferring rotation of the driving portion into rotation and impacts on the tool maintaining portion. The transmission mechanism comprises a gearbox, the gearbox is connected with the driving portion through a middle cover, and an anti-leakage gasket is arranged between the middle cover and the gearbox. The electric hammer effectively solves the problem of oil leakage of a bearing box.
Description
Technical field
The present invention relates to a kind of electric tool, particularly relates to a kind of electric hammer effectively preventing armature spindle gear failure.
Background technology
Electric hammer is that a kind of electrodynamic type of a kind of overload-release clutch with Pneumatic hammering mechanism rotates hammer drill electricity consumption class instrument.
Electric hammer is the class in electric drill, is mainly used to hole on concrete, floor, wall brick and stone material.
Electric hammer is on the basis of common electric drill, increases by one and is driven the piston having crankshaft-link rod by motor, reciprocating air in a cylinder, makes cylinder inner air pressure drive the hammer in cylinder back and forth to hit drill bit top.
Because the drill bit of electric hammer also creates the faster reciprocal motion (frequent impact) in the direction along electric drill bar while rotating, so it can punch fast on the materials such as the larger cement concrete of fragility and stone material.
But electric hammer on the market at present, easily there is oil leakage phenomenon in its gear-box and driver part, meanwhile, its internal gear is easily damaged.
Summary of the invention
The object of the present invention is to provide a kind of convenient electric hammer held.
To achieve these goals, electric hammer provided by the invention comprises: tool holder, drive division and the rotation by drive division are transmitted into the transmission mechanism of rotation to tool holder and impact;
Transmission mechanism comprises gear-box, and gear-box is connected by middle cover with drive division, is provided with leak-proof gasket between middle cover and gear-box.
Thus, leak-proof gasket effectively prevents gear-box from occurring oil leakage phenomenon.
In some embodiments, be provided with a main shaft in fuselage, one end of main shaft is connected with tool holder, is also provided with a jackshaft in fuselage, and jackshaft and main axis parallel are arranged, and jackshaft is connected with the drive motors in drive division, is driven rotate by drive motors.
Thus, jackshaft, by the gear drive in gear-box, drives initiatively by the drive motors in drive division, jackshaft drive shaft running again, thus drives tool holder running.
In some embodiments, jackshaft is provided with rotation transmission part and impact transference part part, rotation transmission part, impact transference part part and jackshaft can independently operate, Clutch Control rotation transmission part and jackshaft one operates, and control impact transference part part and jackshaft and integrally operate.
Thus, rotation and the straight reciprocating motion of workpiece is realized by rotation transmission part, impact transference part part.
In some embodiments, rotation transmission part is two travelling gears being located at jackshaft, and main shaft is provided with a transmitting gear mediated mutually with two travelling gears, and main shaft is driven by drive motors and rotates under the transmission of travelling gear and transmitting gear.
Thus, realized the rotation of workpiece by the transmission of travelling gear and transmitting gear, meanwhile, jackshaft is mediated by the gear on two gears and main shaft, effectively prevents gear failure.
In some embodiments, impact transference part part is the Oscillating lever bearing being provided with jackshaft, it is fixing that Oscillating lever bearing and jackshaft can not circumferential rotate, also be provided with in addition and be connected with Oscillating lever bearing with cylinder, cylinder head is provided with hammer, and the continuous rotation of the jackshaft motion reciprocating linear be converted to for the workpiece in tool holder impacts by hammer.
Thus, by Oscillating lever bearing, the axial rotation of jackshaft is converted to the reciprocating motion of cylinder, the reciprocating linear realizing workpiece impacts.
Electric hammer of the present invention compared with prior art, has the following advantages:
1. electric hammer of the present invention, efficiently solves the Leakage of bearing housing.
2. electric hammer of the present invention, is provided with two travelling gears mediated with main axis gear, reduces the wearing and tearing of travelling gear.
Accompanying drawing explanation
Fig. 1 is the partial structurtes sectional view of the electric hammer of one embodiment of the present invention;
Fig. 2 is the top view of the electric hammer middle gear case of one embodiment of the present invention;
Fig. 3 is the upward view of middle cover in the electric hammer of one embodiment of the present invention.
Detailed description of the invention
Explanation that the present invention is described in further detail below in conjunction with drawings and the specific embodiments.
Following examples only for technical scheme of the present invention is clearly described, and can not limit the scope of the invention with this.
Electric hammer of the present invention, comprises fuselage, and fuselage comprises: the transmission mechanism of tool holder 21, drive division (not indicating in figure) and the rotation rotation of drive division be transmitted into tool holder 21 and impact.Transmission mechanism comprises gear-box 2, and gear-box 2 is connected by middle cover 3 with drive division.
As shown in Figures 2 and 3, between middle cover 3 and gear-box 2, be provided with leak-proof gasket 1, occur oil leakage phenomenon effectively to prevent gear-box.
As shown in Figure 1, electric hammer of the present invention, a main shaft 20 is provided with in fuselage, one end of main shaft 20 is connected with tool holder 21, a jackshaft 1 is also provided with in fuselage, jackshaft 1 and main shaft 20 be arranged in parallel, and jackshaft 1 and the drive motors in drive division, by the gear drive in gear-box, are driven by drive motors and rotate.
Jackshaft 1 is provided with rotation transmission part and impact transference part part, rotation transmission part, impact transference part part and jackshaft can independently operate, clutch 30 controls rotation transmission part and jackshaft one operate, and controls impact transference part part and jackshaft and integrally operate.
Rotation transmission part is two travelling gears 2 being located at jackshaft 1, and main shaft 20 is provided with a transmitting gear 3 mediated with two travelling gear 2 phases, and main shaft 20 is driven by drive motors and rotates under the transmission of travelling gear 2 and transmitting gear 3; Impact transference part part is the Oscillating lever bearing 11 being provided with jackshaft, it is fixing that Oscillating lever bearing 11 and jackshaft 1 can not circumferential rotate, also be provided with a cylinder 22 to be in addition connected with Oscillating lever bearing 11, cylinder 22 top is provided with a hammer 23, and the continuous rotation of the jackshaft 1 motion reciprocating linear be converted to for the workpiece in tool holder impacts by hammer 23.
To sum up, electric hammer of the present invention, efficiently solves the Leakage of bearing housing; In addition, be provided with two travelling gears mediated with main axis gear, reduce the wearing and tearing of travelling gear.
Below be only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the prerequisite not departing from the technology of the present invention principle; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (5)
1. electric hammer, comprises fuselage, and described fuselage comprises: tool holder, drive division and the rotation by described drive division are transmitted into the transmission mechanism of rotation to described tool holder and impact;
It is characterized in that, described transmission mechanism comprises gear-box, and described gear-box is connected by middle cover with described drive division, is provided with leak-proof gasket between described middle cover and described gear-box.
2. electric hammer according to claim 1, it is characterized in that, a main shaft is provided with in described fuselage, one end of described main shaft is connected with described tool holder, a jackshaft is also provided with in described fuselage, described jackshaft and described main axis parallel are arranged, and described jackshaft is connected with the drive motors in described drive division, driven rotate by described drive motors.
3. electric hammer according to claim 2, it is characterized in that, described jackshaft is provided with rotation transmission part and impact transference part part, described rotation transmission part, described impact transference part part and described jackshaft can independently operate, rotation transmission part described in described Clutch Control and described jackshaft one operates, and control described impact transference part part and described jackshaft and integrally operate.
4. electric hammer according to claim 2, it is characterized in that, described rotation transmission part is two travelling gears being located at described jackshaft, described main shaft is provided with a transmitting gear mediated mutually with described two travelling gears, and described main shaft is driven by described drive motors and rotates under the transmission of travelling gear and transmitting gear.
5. electric hammer according to claim 4, it is characterized in that, described impact transference part part is the Oscillating lever bearing being provided with described jackshaft, it is fixing that described Oscillating lever bearing and described jackshaft can not circumferential rotate, also be provided with in addition and be connected with described Oscillating lever bearing with cylinder, described cylinder head is provided with hammer, and the continuous rotation of the described jackshaft motion reciprocating linear be converted to for the workpiece in described tool holder impacts by described hammer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510317529.0A CN104942762A (en) | 2015-06-05 | 2015-06-05 | Electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510317529.0A CN104942762A (en) | 2015-06-05 | 2015-06-05 | Electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104942762A true CN104942762A (en) | 2015-09-30 |
Family
ID=54158099
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510317529.0A Pending CN104942762A (en) | 2015-06-05 | 2015-06-05 | Electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104942762A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569558A (en) * | 2016-03-07 | 2016-05-11 | 湖州中辰建设有限公司 | Percussion drill with pneumatic piston device |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554878A (en) * | 2011-12-08 | 2012-07-11 | 宁波捷美进出口有限公司 | Electric hammer |
| CN203621564U (en) * | 2013-07-22 | 2014-06-04 | 南通东利德工具有限公司 | Oil-leakage-proof electric hammer |
| EP2767367A1 (en) * | 2012-12-11 | 2014-08-20 | Zhejiang Benyu Tools Co. Ltd. | Transmission switching device of electric hammer |
| US20140338944A1 (en) * | 2013-05-14 | 2014-11-20 | Robert Bosch Gmbh | Hand tool device |
-
2015
- 2015-06-05 CN CN201510317529.0A patent/CN104942762A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554878A (en) * | 2011-12-08 | 2012-07-11 | 宁波捷美进出口有限公司 | Electric hammer |
| EP2767367A1 (en) * | 2012-12-11 | 2014-08-20 | Zhejiang Benyu Tools Co. Ltd. | Transmission switching device of electric hammer |
| US20140338944A1 (en) * | 2013-05-14 | 2014-11-20 | Robert Bosch Gmbh | Hand tool device |
| CN203621564U (en) * | 2013-07-22 | 2014-06-04 | 南通东利德工具有限公司 | Oil-leakage-proof electric hammer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105569558A (en) * | 2016-03-07 | 2016-05-11 | 湖州中辰建设有限公司 | Percussion drill with pneumatic piston device |
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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 | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150930 |