CN2520229Y - Single knob controlled three-function crankshaft electric hammer - Google Patents
Single knob controlled three-function crankshaft electric hammer Download PDFInfo
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- CN2520229Y CN2520229Y CN 02215176 CN02215176U CN2520229Y CN 2520229 Y CN2520229 Y CN 2520229Y CN 02215176 CN02215176 CN 02215176 CN 02215176 U CN02215176 U CN 02215176U CN 2520229 Y CN2520229 Y CN 2520229Y
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- gear
- ping
- trip
- lever
- hammer
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- Expired - Fee Related
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Abstract
A triple-functional bent shaft type electric hammer controlled by a single-knob comprises a casing, a motor as a power source arranged in the casing, four mechanisms of a drill actuating mechanism, a hammer actuating mechanism, a drill and hammer converting mechanism and a power-take-off mechanism which are respectively arranged on two sides of a motor output shaft. The triple-functional bent shaft type electric hammer is characterized in that the drill and hammer converting mechanism comprises a knob, a gear, a rack bar and two clutch boards, the knob is connected with the gear engaged with the rack bar to an integral, the two clutch boards are respectively arranged under and perpendicular to a return bar of the drill actuating mechanism and a return bar of the hammer actuating mechanism. The two clutch boards are respectively relative to the lower portions of two ends of the rack bar, with raised slopes formed on the middle portions. Two idler pulleys are respectively arranged on the ends of the clutch boards near the rack bar, and two ends of the rack bar are respectively provided with oblique lateral faces on the corresponding positions, which ensures that when the rack bar is driven by the gear to move right and left, one of the two clutch boards is respectively facilitated to move backwards through interaction between the rack bar oblique plane and the clutch board idler pulleys, and the corresponding return bar is pushed upwards by the raised oblique slopes formed on the middle portions. The triple-functional bent shaft type electric hammer realizes single-knob conversion function in smaller room, which is convenient in utilizing and reliable in converting.
Description
Technical field
The utility model relates to a kind of electric impac tool, particularly a kind of three function crankshaft-type electric hammers of single knob control.
Background technology
So-called " three function electric hammer " is meant to have following three kinds of functions: independent brill, independent hammering, while not only bore but also hammer into shape; Its function conversion is generally controlled separately by two knobs, the rotation of a control drill bit, the knocking of a control drill bit, both combinations are then for not only boring but also hammer into shape, therefore very inconvenient when reality is used, for this reason, for three function oscillating rod type electric hammers, the design of existing single knob switching mechanism is come out, and is a kind of mechanism " multifunctional electric hammer " of ZL00220570.X discloses as the patent No., yet for crankshaft-type electric hammer, because its driving parts is more, and the space is very narrow and small, and the difficulty of single knob design is very big, and not seeing so far has similar design to come out.
Summary of the invention
Technical problem to be solved in the utility model is exactly the three function crankshaft-type electric hammers that single knob control is provided at above-mentioned prior art present situation.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: three function crankshaft-type electric hammers of single knob control, comprise housing and be positioned at the motor of housing as power source, lay respectively at the brill transmission mechanism of motor output shaft both sides, the hammer transmission mechanism, bore hammer switching mechanism and power take-off mechanism, it is characterized in that the switching mechanism of described brill hammer comprises knob, gear, tooth bar and two clutch plates, knob is connected one with gear, the wheel and rack engagement, two clutch plates lay respectively at the trip(ping) lever that bores in the transmission mechanism, the trip(ping) lever below of hammer transmission mechanism is also vertical with it, and it is relative with the bottom, two ends of tooth bar respectively, its middle part has the slope of protuberance, and be respectively arranged with a roller at an end of contiguous tooth bar, and the tooth bar two ends are respectively arranged with oblique side at the position of correspondence, make when tooth bar during by the gear drive move left and right, by the interaction between rack inclined and the clutch plate roller, make one in two clutch plates to move backward respectively, and upwards push away by the trip(ping) lever of the protuberance slope in the middle part of it with correspondence.
Compared with prior art, the utility model advantage is to have realized single knob translation function of three function crankshaft-type electric hammers in original less space, not only easy to use, and conversion is reliable.
Description of drawings
Fig. 1 is the structure cross-sectional schematic of the utility model embodiment.
Fig. 2 is the partial perspective cutaway view of Fig. 1.
Fig. 3 is the partial perspective cutaway view of another direction of Fig. 1.
Fig. 4 is the sectional perspective decomposing schematic representation of Fig. 1.
The specific embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As Fig. 1～shown in Figure 4, three function crankshaft-type electric hammers of single knob control comprise housing 1 and are positioned at housing as the motor 2 of power source, the brill transmission mechanism that lays respectively at motor output shaft 21 both sides, hammer transmission mechanism, brill hammer switching mechanism and power take-off mechanism;
The hammer transmission mechanism comprises first gear 43, bent axle 42, connecting rod 46 and piston 47, wherein first gear 43 meshes with 21 teeth of main shaft of motor, first gear 43 is enclosed within outside the blind pipe shape axle head of bent axle 42, and be connected by steel ball keyway clutch, the output of bent axle 42 links to each other with connecting rod 46 1 ends, the other end of connecting rod 46 connects piston 47, and 47 in piston is positioned at the end of the tubular shaft 52 of power take-off mechanism; Wherein steel ball keyway clutch comprises trip(ping) lever 41, spring 45 and steel ball 44, trip(ping) lever 41 is arranged in the blind pipe shape axle head of bent axle 42, steel ball 44 penetratingly is arranged on the tube wall of axle head, constitute keyway mechanism with straight trough corresponding on first gear 43, wherein the middle part of trip(ping) lever 41 has an annular groove that described steel ball 44 can be held wherein, and the top of trip(ping) lever 41 is provided with back-moving spring 45;
Bore transmission mechanism and comprise second gear 33, bevel pinion 32 and bevel gear wheel 34, wherein second gear 33 meshes with first gear 43 of hammer transmission mechanism, second gear 33 is enclosed within outside the tubulose axle head of bevel pinion 32, and be connected by steel ball keyway clutch, bevel gear wheel 34 and bevel pinion 32 engagements, and drive with its coaxial rotating shaft 52 rotations; Wherein steel ball keyway clutch comprises trip(ping) lever 31, spring 36 and steel ball 35, trip(ping) lever 51 is arranged in the tubulose axle head of bevel pinion 32, steel ball 35 penetratingly is arranged on the tube wall of axle head, constitute keyway mechanism with straight trough corresponding on second gear 33, wherein the middle part of trip(ping) lever 31 has an annular groove that described steel ball 35 can be held wherein, and the top of trip(ping) lever 51 is provided with back-moving spring 36; 30 is gear box casing among the figure;
Bore hammer switching mechanism and comprise knob 64, gear 65, tooth bar 63 and clutch plate 61,62, knob 64 is connected one with gear 65, gear 65 and tooth bar 63 engagements, clutch plate 61,62 lay respectively at trip(ping) lever 31,41 below, and respectively perpendicular to the bottom, two ends of tooth bar 63, wherein clutch plate 61,62 middle part has the slope 61a of protuberance, 62a, and be respectively arranged with a roller 61b at an end of contiguous tooth bar 63,62b, and tooth bar 63 two ends are respectively arranged with oblique side 63a (referring to Fig. 3) at the position of correspondence, make and to be driven by gear 65 and during move left and right when tooth bar 63, by rack inclined 63a and clutch plate roller 61b, interaction between the 62b, clutch plate 61 or 62 is moved backward, by the protuberance slope 61a at its middle part, 62a upwards pushes away trip(ping) lever 31 or 41;
Power take-off mechanism comprises rotating shaft 52, impact piston 51, block stamp 53, drill bushing 54 and drill bit (not shown), its shaft 52 hollows, the piston 47 of described hammer transmission mechanism promptly is positioned at wherein empty afterbody, 51 middle parts that are positioned at its hollow of impact piston, 53 heads that are positioned at its hollow of block stamp.
During work, main shaft axle tooth 21 transmissions of series excited machine 2 are engaged to gear 43 and gear 33, three gears rotate simultaneously; Be positioned at the centre position as clutch this moment tooth bar 63, clutch plate 61a, 62a do not work, then gear 43 drives bent axle 42 rotations by the clutch that is made of trip(ping) lever 41, steel ball 44, and it is reciprocating to drive piston 47 by connecting rod 46, promote impact piston 51 bump block stamp 53 drill hammers or chisels, realize the function of hammer; Simultaneously, gear 33 drives bevel pinion 32 rotations by the clutch that is made of trip(ping) lever 31, steel ball 35, and auger tooth 34 is rotation simultaneously therefore, and drive rotating shaft 52 is rotated together, rotating shaft 52 drives the drill bit rotation by two holes, two key drill bushings 54 again, realizes the function of boring; This moment, electric hammer promptly was operated in the hammer drill state;
When clockwise rotating knob 64, gear 65 drives tooth bar 63 and is moved to the left, therefore touch mutually with clutch plate roller 61b and promote clutch plate 61 through tooth bar left end inclined-plane 63a and move backward, the protuberance slope 61a at its middle part will push away on the trip(ping) lever 31, steel ball falls in the groove of trip(ping) lever 31, the bevel pinion 32 and second gear 33 are thrown off, no longer rotation, simultaneously, the upper end of trip(ping) lever 31 passes the axle head of bevel pinion 32, and withstands in the straight trough corresponding in the rotating shaft 52, and rotating shaft 52 is stopped operating, this moment, electric hammer promptly was operated in single hammer state, referring to Fig. 2, Fig. 1.
When rotating counterclockwise knob 64, gear 65 drives tooth bar 63 and moves right, therefore touch mutually with clutch plate roller 62b and promote clutch plate 62 through tooth bar right-hand member inclined-plane 63a and move backward, the protuberance slope 62a at its middle part will push away on the trip(ping) lever 41, steel ball falls in the groove of trip(ping) lever 41, and bent axle 42 is thrown off with gear 43, no longer rotation, this moment, electric hammer promptly was operated in single brill state, referring to Fig. 3, Fig. 1.
Claims (6)
1, a kind of three function crankshaft-type electric hammers of single knob control, comprise housing and be positioned at the motor of housing as power source, lay respectively at the brill transmission mechanism of motor output shaft both sides, the hammer transmission mechanism, bore hammer switching mechanism and power take-off mechanism, it is characterized in that the switching mechanism of described brill hammer comprises knob, gear, tooth bar and two clutch plates, knob is connected one with gear, the wheel and rack engagement, two clutch plates lay respectively at the trip(ping) lever that bores in the transmission mechanism, the trip(ping) lever below of hammer transmission mechanism is also vertical with it, and it is relative with the bottom, two ends of tooth bar respectively, its middle part has the slope of protuberance, and be respectively arranged with a roller at an end of contiguous tooth bar, and the tooth bar two ends are respectively arranged with oblique side at the position of correspondence, make when tooth bar during by the gear drive move left and right, by the interaction between rack inclined and the clutch plate roller, make one in two clutch plates to move backward respectively, and upwards push away by the trip(ping) lever of the protuberance slope in the middle part of it with correspondence.
2, three function crankshaft-type electric hammers of single knob control according to claim 1, it is characterized in that described hammer transmission mechanism comprises first gear, bent axle, connecting rod and piston, the wherein main shaft axle tooth of first gear and motor engagement, first geared sleeve is outside the blind pipe shape axle head of bent axle, and be connected by steel ball keyway clutch, the eccentric end of bent axle links to each other with an end of connecting rod, and the other end of connecting rod connects piston, and piston then is positioned at the end of the tubular shaft of power take-off mechanism.
3, three function crankshaft-type electric hammers of single knob control according to claim 2, it is characterized in that described steel ball keyway clutch comprises trip(ping) lever, spring and steel ball, trip(ping) lever is arranged in the blind pipe shape axle head of bent axle, steel ball penetratingly is arranged on the tube wall of axle head, constitute keyway mechanism with straight trough corresponding on first gear, wherein the middle part of trip(ping) lever has an annular groove that described steel ball can be held wherein, and the top of trip(ping) lever is provided with back-moving spring.
4, three function crankshaft-type electric hammers of single knob control according to claim 2, it is characterized in that described brill transmission mechanism comprises second gear, bevel pinion and bevel gear wheel, wherein second gear with the hammer transmission mechanism first gears engaged, second geared sleeve is outside the tubulose axle head of bevel pinion, and be connected by steel ball keyway clutch, bevel gear wheel and bevel pinion engagement, and be enclosed within outside the rotating shaft of the power take-off mechanism coaxial with it.
5, three function crankshaft-type electric hammers of single knob control according to claim 4, it is characterized in that described steel ball keyway clutch comprises trip(ping) lever, spring and steel ball, trip(ping) lever is arranged in the tubulose axle head of bevel pinion, steel ball penetratingly is arranged on the tube wall of axle head, constitute keyway mechanism with straight trough corresponding on second gear, wherein the middle part of trip(ping) lever has an annular groove that described steel ball can be held wherein, and the top of trip(ping) lever is provided with back-moving spring.
6, three function crankshaft-type electric hammers of single knob control according to claim 5, the trip(ping) lever upper end of tubular shaft in the described brill transmission mechanism of correspondence that it is characterized in that described power take-off mechanism are provided with and can hold it and insert wherein straight trough.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02215176 CN2520229Y (en) | 2002-01-15 | 2002-01-15 | Single knob controlled three-function crankshaft electric hammer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02215176 CN2520229Y (en) | 2002-01-15 | 2002-01-15 | Single knob controlled three-function crankshaft electric hammer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2520229Y true CN2520229Y (en) | 2002-11-13 |
Family
ID=33694358
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02215176 Expired - Fee Related CN2520229Y (en) | 2002-01-15 | 2002-01-15 | Single knob controlled three-function crankshaft electric hammer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2520229Y (en) |
-
2002
- 2002-01-15 CN CN 02215176 patent/CN2520229Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |