CN2707439Y - Three-function light electric hammer - Google Patents
Three-function light electric hammer Download PDFInfo
- Publication number
- CN2707439Y CN2707439Y CN 200420023132 CN200420023132U CN2707439Y CN 2707439 Y CN2707439 Y CN 2707439Y CN 200420023132 CN200420023132 CN 200420023132 CN 200420023132 U CN200420023132 U CN 200420023132U CN 2707439 Y CN2707439 Y CN 2707439Y
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- China
- Prior art keywords
- shaft
- cam
- transmission shaft
- electric hammer
- spline
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- Expired - Fee Related
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Abstract
The utility model relates to an electric hammer, which belongs to the technical field of electric tools, and comprises a front end shell, a transmission shaft assembly, an impacting shaft assembly, a rotary knob and a fixed seat of the impacting shaft. The impacting shaft assembly and the transmission shaft assembly are installed on the fixed seat of the impacting shaft, and the two shafts have definite working distance. A rod end oscillation bearing which is arranged on a main shaft is correlated with the main shaft through a spline pair. The left end of the main shaft is correlated with a transmission shaft through the spline pair. A cam is arranged on the rotary knot, an eccentric pin shaft which is vertical to the plane surface of the cam is arranged on the cam, and the eccentric pin shaft is correlated with a spline which is arranged on the transmission shaft. The cam is correlated with a shifting fork, and the end of the fork lever of the shifting fork is arranged in the groove body of a shifting fork sleeve. The utility model solves the problems that two rotary knots are adopted to switch the three functions of drilling, picking and drilling and picking in the prior art, the operation is complicated, etc. The utility model has the advantages of simple structure, reasonable design, the adoption of single rotary knots for the switching of the three functions, simple operation, etc.
Description
Technical field
The utility model relates to a kind of electric hammer, belongs to the technical field of electric tool.
Technical background
Electric hammer is used comparatively extensive in the bore operation of body of wall, often need between " brill ", " pick ", " not only bore but also pick " three functions, switch in the operation, usually adopt two knobs to cooperate to reach the purpose of switching between three functions in the prior art, control is comparatively loaded down with trivial details in operating process.
As a kind of pistol type electric hammer (patent No.: patent application 96233491.X), it contains rotation and hammer mechanism, rotation and hammer mechanism all are contained in the cavity of reduction box and middle cover composition, reduction box and middle cover be connected the location be reduction box itself plastic pin with in the hole that covers cooperate, the middle cover front end has only a bearing position.
Summary of the invention
The utility model has solved two knobs of employing that prior art exists and has switched " brill ", " pick ", " not only bore but also pick " three functions, operate problems such as comparatively loaded down with trivial details, provide a kind of structure comparatively simple, reasonable in design, adopt single knob to switch " brill ", " pick ", " not only bore but also pick " three functions, operate comparatively easy three-function light electric hammer.
Above-mentioned technical purpose of the present utility model mainly solves by the following technical programs: comprise front end component and back-end component, front end component is the transmission control part branch, back-end component is power section, front end component comprises front end shell, transmission shaft component, impacting shaft assembly, knob, impacting shaft holder, impacting shaft assembly and transmission shaft component are installed on the impacting shaft holder, and diaxon is at a distance of certain operating distance; The main shaft that is driven by power section is provided with the rod end oscillation bearing, described rod end oscillation bearing and main shaft by spline to related, the main shaft left end passes through spline to related with power transmission shaft, described knob is provided with cam, described cam is provided with the eccentric pin shaft vertical with cam planes, described eccentric pin shaft is related with the spline on being located at power transmission shaft, and described cam is related with shift fork, and the fork arm end of shift fork places in the cell body of shift fork cover.Wherein, the spline that eccentric pin shaft can promote on the power transmission shaft moves toward the left side, and cam can promote shift fork toward moving right, and shift fork drives the shift fork cover toward moving right, when the spline of the spline of main shaft and power transmission shaft main shaft and Oscillating lever bearing to cooperating when throwing off, the utility model is in single brill state; When the spline of main shaft and power transmission shaft to disengagement and the spline of main shaft and Oscillating lever bearing when cooperating, the utility model is in single pick state; When the spline of main shaft and power transmission shaft to and the spline of main shaft and oscillation bearing when all cooperating, the utility model is in and not only bores but also the pick state.Can reach " brill ", pick by the knob that rotates and cam is fixed as one ", the switching between " not only bore but also pick " three kinds of functions, make operation of the present utility model more simple.
As preferably, described front end shell is provided with the stop pin, is provided with spring between described stop pin and front end shell, and its syringe needle points to the gear of being located on the pivoted housing, gear on the pivoted housing and the gears engaged of being located on the power transmission shaft.When the utility model was in single pick state, the syringe needle of stop pin fell between the gear teeth that turning set cogs, and stops rotary head to be rotated in the process of pick, has improved pick efficiency of operation and stability.
As preferably, described eccentric pin shaft is provided with near the cam projection.
As preferably, spline and power transmission shaft on the described power transmission shaft are fixed as one, and are provided with spring between gear on the described power transmission shaft and front end shell; The fork arm of described shift fork passes chute, is provided with spring between shift fork and impacting shaft holder, and described chute is fixed on the impacting shaft holder.Wherein, gear on the power transmission shaft and the spring between front end shell can between spline on the power transmission shaft reset, and the spring between shift fork and impacting shaft holder can playback shift fork.
As preferably, the center of described cam and the center of knob are overlapped, and cam and knob are fixed as one by screw.
As preferably, be provided with spring between described knob and front end shell.Spring between knob and front end shell can guarantee certain distance between knob and front end shell with knob jack-up, and the frictional force when reducing knob and between front end shell has improved the flexibility that the utility model is operated.
Therefore, it is comparatively simple, reasonable in design to the utlity model has structure, adopts single knob to switch " brill ", " pick ", " not only bore but also pick " three functions, operates characteristics such as comparatively easy.Wherein, the spline that eccentric pin shaft can promote on the power transmission shaft moves toward the left side, and cam can promote shift fork toward moving right, and shift fork drives the shift fork cover toward moving right, when the spline of the spline of main shaft and power transmission shaft main shaft and Oscillating lever bearing to cooperating when throwing off, the utility model is in single brill state; When the spline of main shaft and power transmission shaft to disengagement and the spline of main shaft and Oscillating lever bearing when cooperating, the utility model is in single pick state; When the spline of main shaft and power transmission shaft to and the spline of main shaft and oscillation bearing when all cooperating, the utility model is in and not only bores but also the pick state.Can reach " brill ", pick by the knob that rotates and cam is fixed as one ", the switching between " not only bore but also pick " three kinds of functions, make operation of the present utility model more simple.When the utility model was in single pick state, the syringe needle of stop pin fell between the gear teeth that turning set cogs, and stops rotary head to be rotated in the process of pick, has improved pick efficiency of operation and stability.Spring between knob and front end shell can guarantee certain distance between knob and front end shell with knob jack-up, and the frictional force when reducing knob and between front end shell has improved the flexibility that the utility model is operated.
Description of drawings
Accompanying drawing 1 is a kind of structural representation that the utility model is in single brill state;
Accompanying drawing 2 is a kind of structural representations that the utility model is in single pick state;
Accompanying drawing 3 is that the utility model is in and not only bores but also a kind of structural representation of pick state;
Accompanying drawing 4 is a kind of structural representations of the utility model cam and knob;
Accompanying drawing 5 is upward views of accompanying drawing 4;
Accompanying drawing 6 is side views of accompanying drawing 4.
Specific embodiment
Below by embodiment, and in conjunction with the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment 1: as Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 6, be provided with transmission shaft component and impacting shaft assembly in the cavity of forming by front end shell 2 and impacting shaft holder 4, impacting shaft assembly and transmission shaft component are fixed on the impacting shaft holder 4, the impacting shaft assembly comprises Oscillating lever bearing 8, Oscillating lever bearing is placed on the main shaft 5, and the fork of Oscillating lever bearing 8 is related with the cylinder in being located at pivoted housing.Be located at spline on main shaft upper spline and the Oscillating lever bearing and form spline to cooperating, on the main shaft with Oscillating lever bearing on the spline of spline fitted and shift fork overlap 6 and be fixed as one.
The spline that is located at the main shaft left end is formed spline to also cooperating with the spline 12 on the power transmission shaft 13, spline 12 is fixed as one with power transmission shaft, gear 14 engagements that gear 15 on the power transmission shaft is outer with being located at pivoted housing, be provided with stop pin 3 between gear 14 left ends and front end shell, be provided with spring 1 between stop pin 3 and front end shell.
Main shaft and power transmission shaft below be provided with cam 11, the center of cam 11 overlaps with the center of knob 10 and is fixed as one by screw, position near cam projection 17 on the cam 11 is provided with the eccentric pin shaft vertical with cam planes 9, eccentric pin shaft 9 offsets with the right-hand member of spline 12, the side of cam 11 and shift fork 7 offset, the fork arm of shift fork passes chute 16, and chute 16 is fixed on the impacting shaft holder, is provided with spring between shift fork and the impacting shaft holder.
The spline that eccentric pin shaft can promote on the power transmission shaft moves toward the left side, cam can promote shift fork toward moving right, shift fork drives the shift fork cover toward moving right, and when the spline of the spline of main shaft and power transmission shaft main shaft and Oscillating lever bearing to cooperating during to disengagement, the utility model is in single brill state (as shown in Figure 1); When the spline of main shaft and power transmission shaft to disengagement and the spline of main shaft and Oscillating lever bearing when cooperating, the utility model is in single pick state (as shown in Figure 2); When the spline of main shaft and power transmission shaft to and the spline of main shaft and oscillation bearing when all cooperating, the utility model is in and not only bores but also pick state (as shown in Figure 3).Can reach " brill ", pick by the knob that rotates and cam is fixed as one ", the switching between " not only bore but also pick " three kinds of functions, make operation of the present utility model more simple.
Claims (10)
1, a kind of three-function light electric hammer, comprise front end component and back-end component, front end component is the transmission control part branch, back-end component is power section, front end component comprises front end shell (2), transmission shaft component, impacting shaft assembly, knob (10), impacting shaft holder (4), impacting shaft assembly and transmission shaft component are installed on the impacting shaft holder, and diaxon is at a distance of certain operating distance; The main shaft (5) that is driven by power section is provided with rod end oscillation bearing (8), described rod end oscillation bearing (8) and main shaft (5) by spline to related, the main shaft left end passes through spline to related with power transmission shaft (13), it is characterized in that described knob is provided with cam (11), described cam (11) is provided with the eccentric pin shaft vertical with cam planes (9), described eccentric pin shaft (9) is related with the spline (12) on being located at power transmission shaft, described cam is related with shift fork (7), and the fork arm end of shift fork places in the cell body of shift fork cover (6).
2, three-function light electric hammer according to claim 1, it is characterized in that described front end shell is provided with stop pin (3), be provided with spring (1) between described stop pin and front end shell, its syringe needle points to the gear of being located on the pivoted housing (14), gear on the pivoted housing and gear (15) engagement of being located on the power transmission shaft.
3, three-function light electric hammer according to claim 1 and 2 is characterized in that described eccentric pin shaft (9) is provided with near cam (11) projection (17).
4, three-function light electric hammer according to claim 1 and 2 is characterized in that the spline (12) on the described power transmission shaft is fixed as one with power transmission shaft, is provided with spring between gear on the described power transmission shaft (15) and front end shell.
5, three-function light electric hammer according to claim 1 and 2 is characterized in that the fork arm of described shift fork passes chute (16), is provided with spring between shift fork and impacting shaft holder, and described chute is fixed on the impacting shaft holder.
6, three-function light electric hammer according to claim 1 and 2 is characterized in that the center of the center of described cam (11) and knob is overlapped, and cam and knob are fixed as one by screw.
7, three-function light electric hammer according to claim 1 and 2 is characterized in that being provided with spring between described knob and front end shell.
8, three-function light electric hammer according to claim 3 is characterized in that being provided with spring between described knob and front end shell.
9, three-function light electric hammer according to claim 4 is characterized in that being provided with spring between described knob and front end shell.
10, three-function light electric hammer according to claim 5 is characterized in that being provided with spring between described knob and front end shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420023132 CN2707439Y (en) | 2004-05-25 | 2004-05-25 | Three-function light electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420023132 CN2707439Y (en) | 2004-05-25 | 2004-05-25 | Three-function light electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2707439Y true CN2707439Y (en) | 2005-07-06 |
Family
ID=34849246
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420023132 Expired - Fee Related CN2707439Y (en) | 2004-05-25 | 2004-05-25 | Three-function light electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2707439Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008009211A1 (en) * | 2006-07-11 | 2008-01-24 | Wenjiang Wang | A four-function light electric hammer |
| CN102105273A (en) * | 2008-07-28 | 2011-06-22 | 罗伯特·博世有限公司 | Impact device |
| WO2014090041A1 (en) * | 2012-12-11 | 2014-06-19 | 浙江奔宇工具有限公司 | Transmission switching device of electric hammer |
| CN104227670A (en) * | 2013-06-24 | 2014-12-24 | 苏州宝时得电动工具有限公司 | Electric hammer |
| WO2020024762A1 (en) * | 2018-07-31 | 2020-02-06 | 浙江信普工贸有限公司 | Automated hammering-mode locking device for electric hammering tool |
| CN114211233A (en) * | 2021-12-01 | 2022-03-22 | 贵州航天精工制造有限公司 | Bolt thread sleeve mounting method and bolt thread sleeve mounting tool |
-
2004
- 2004-05-25 CN CN 200420023132 patent/CN2707439Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008009211A1 (en) * | 2006-07-11 | 2008-01-24 | Wenjiang Wang | A four-function light electric hammer |
| CN102105273A (en) * | 2008-07-28 | 2011-06-22 | 罗伯特·博世有限公司 | Impact device |
| CN102105273B (en) * | 2008-07-28 | 2014-05-28 | 罗伯特·博世有限公司 | Impact device |
| WO2014090041A1 (en) * | 2012-12-11 | 2014-06-19 | 浙江奔宇工具有限公司 | Transmission switching device of electric hammer |
| CN104227670A (en) * | 2013-06-24 | 2014-12-24 | 苏州宝时得电动工具有限公司 | Electric hammer |
| CN104227670B (en) * | 2013-06-24 | 2016-07-06 | 苏州宝时得电动工具有限公司 | Electric hammer |
| WO2020024762A1 (en) * | 2018-07-31 | 2020-02-06 | 浙江信普工贸有限公司 | Automated hammering-mode locking device for electric hammering tool |
| CN114211233A (en) * | 2021-12-01 | 2022-03-22 | 贵州航天精工制造有限公司 | Bolt thread sleeve mounting method and bolt thread sleeve mounting tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20050706 Termination date: 20130525 |