CN101157214A - Dual-speed multifunctional electric hammer - Google Patents

Dual-speed multifunctional electric hammer Download PDF

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Publication number
CN101157214A
CN101157214A CNA2007101344976A CN200710134497A CN101157214A CN 101157214 A CN101157214 A CN 101157214A CN A2007101344976 A CNA2007101344976 A CN A2007101344976A CN 200710134497 A CN200710134497 A CN 200710134497A CN 101157214 A CN101157214 A CN 101157214A
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CN
China
Prior art keywords
low speed
slide plate
high speed
gear wheel
speed
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Granted
Application number
CNA2007101344976A
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Chinese (zh)
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CN100513090C (en
Inventor
陈松年
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Changzhou Tongyang Electric Manufacturing Co., Ltd.
Original Assignee
SAIDI ELECTRIC MANUFACTURING Co Ltd CHANGZHOU
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Application filed by SAIDI ELECTRIC MANUFACTURING Co Ltd CHANGZHOU filed Critical SAIDI ELECTRIC MANUFACTURING Co Ltd CHANGZHOU
Priority to CNB2007101344976A priority Critical patent/CN100513090C/en
Publication of CN101157214A publication Critical patent/CN101157214A/en
Priority to EP20080167598 priority patent/EP2055440B1/en
Application granted granted Critical
Publication of CN100513090C publication Critical patent/CN100513090C/en
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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
    • B25D16/006—Mode changers; Mechanisms connected thereto
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2211/00—Details of portable percussive tools with electromotor or other motor drive
    • B25D2211/06—Means for driving the impulse member
    • B25D2211/061—Swash-plate actuated impulse-driving mechanisms
    • 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
    • B25D2216/0007—Details of percussion or rotation modes
    • B25D2216/0015—Tools having a percussion-only mode
    • 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
    • B25D2216/0007—Details of percussion or rotation modes
    • B25D2216/0023—Tools having a percussion-and-rotation mode
    • 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
    • B25D2216/0007—Details of percussion or rotation modes
    • B25D2216/0038—Tools having a rotation-only mode
    • 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
    • B25D2216/0076—Angular position of the chisel modifiable by hand
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/045—Cams used in percussive tools
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B25—HAND TOOLS; PORTABLE POWER-DRIVEN TOOLS; MANIPULATORS
    • B25D—PERCUSSIVE TOOLS
    • B25D2250/00—General details of portable percussive tools; Components used in portable percussive tools
    • B25D2250/275—Tools having at least two similar components

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Percussive Tools And Related Accessories (AREA)
  • Drilling And Boring (AREA)

Abstract

The invention belongs to the electric tool technology field, and relates to a double-speed multi-purpose electric hammer. The invention comprises front end and rear end parts; the front end part comprises a front end casing body, a bottom seat, a transmission shaft component, an impact axle component, a sliding pinion gear component, a low-speed bull gear, a high-speed bull gear, a bull gear return spring, inner and outer knobs, a low-speed sliding plate, a high-speed sliding plate, a sliding plate spring, and a rotation stopping plate. The invention adopts one knob to realize the conversion of five function of the electric hammer, the single hammer, the neutral gear, the hammer drill, the low-speed drill and the high-speed drill, and the function is reliable, and the installation and the use are convenient. The invention solves the problem that the efficiency is not high when the existing electric hammer is used for drilling small holes on steel or timber.

Description

Dual-speed multifunctional electric hammer
Technical field
The invention belongs to electric tool technical field in the mechanical industry, be specifically related to the dual-speed multifunctional electric hammer that the single knob of a kind of usefulness is realized five kinds of functions such as single hammer, neutral gear, hammer drill, low speed brill, high speed drill.
Background technology
Existing electric hammer has only four functions at most, and promptly single hammer, neutral gear, hammer drill, low speed bore.Single hammer function is for general on material such as cutter wire casing and shovel ceramic tile on cement, the brick wall; Neutral gear is the angle that is used to adjust the cutting edge and the working face of flat chisel, and it is comfortable that hand gripped electric hammer when the operator was worked; The hammer drill function is for general on cement, the brick wall and holes; Low speed bores function and is for general on the hole of boring on steel, the timber greater than φ 10.But, low speed bore function when being used on steel, timber, boring hole less than φ 10 efficient not high.
Summary of the invention
Purpose of the present invention is exactly the existing electric hammer that will solve the not high problem of efficient when boring hole less than φ 10 on steel, timber.The invention provides by knob and realize five kinds of function conversion such as single hammer, neutral gear, hammer drill, low speed brill, high speed drill of electric hammer and reliable effect, dual-speed multifunctional electric hammer easy to install.
Dual-speed multifunctional electric hammer of the present invention has single hammer, neutral gear, hammer drill, low speed brill function, and key is that it also has the high speed drill function, and realizes above-mentioned five kinds of function conversion by a knob.
The concrete technical scheme of the present invention is achieved like this: it mainly comprises front end component and back-end component; Front end component is the transmission control part branch, and back-end component is power section; Front end component comprises front end shell 15, base 16, and transmission shaft component 17, impacting shaft assembly 6, spline plate 44 is characterized in that:
Transmission shaft component 17 mainly comprises the power transmission shaft 24, the Oscillating lever bearing 19 that are connected with power section, be sleeved on the Oscillating lever bearing 19 endwisely slip with power transmission shaft 24 engagements or the clutch 21, the clutch spring 20 that separate;
Impacting shaft assembly 6 mainly comprises impacting shaft 7, circlip 8, be sleeved on endwisely slipping and drive low speed gear wheel 12 and high speed gear wheel 9, gear wheel back-moving spring 11 that impacting shaft 7 rotates, drive and be arranged on the piston 14 that the drill bits in the impacting shaft 7 move vertically on the impacting shaft 7;
It also comprises sliding pinion assembly 26, sliding pinion assembly 26 is sleeved on the power transmission shaft 24 in axial sliding, and connecting on the sliding pinion assembly 26 can be respectively and low speed gear wheel 12 and 9 engagements of high speed gear wheel or the low speed pinion 25 and the high speed pinion 29 that separate;
It also comprises can be along the slide plate of low speed in axial sliding 34 and the high speed slide plate 35 of power transmission shaft 24, and skateboard spring 41 is installed on the high speed slide plate 35; Be connected with on the low speed slide plate 34 and can stir low speed gear wheel 12 and clutch 21 axially movable side guide 37 and side guides 38 respectively; High speed slide plate 35 is connected with can stir sliding pinion 26 axially movable side guides 36;
It also comprises and is arranged on the inner button in the hole 32 on the base 16, and outer knob 33 is installed on the inner button 32, is connected with endwisely slipping or actionless low speed slide plate 34 and high speed slide plate 35 along power transmission shaft 24 respectively on the inner button 32.
Usually sliding pinion assembly 26 is sleeved on the power transmission shaft 24, is connected with power transmission shaft 24 with key 28, only endwisely slipping along power transmission shaft 24; The two ends of sliding pinion assembly 26 are connected with low speed pinion 25 and high speed pinion 29 respectively, and the middle part of sliding pinion assembly 26 is connected with groove 27.
Low speed gear wheel 12 is sleeved on the impacting shaft 7, connect with key 13, endwisely slipping along impacting shaft 7 only, high speed gear wheel 9 is sleeved on the impacting shaft 7, connect with key 10, along the endwisely slipping of impacting shaft 7, circlip 8 is used for low speed gear wheel 12 and high speed gear wheel 9 axial location only, gear wheel back-moving spring 11 is sleeved on the impacting shaft 7, places in the middle of low speed gear wheel 12 and the high speed gear wheel 9.
Have external splines 22 on the outer circumference surface of the intermediate ends of power transmission shaft 24, external splines 22 can be meshed with clutch 21; Clutch back-up ring 23 is installed on power transmission shaft 24, and clutch back-up ring 23 can be used for the axial location of clutch 21.
Be connected with side guide 37 and side guide 38 on the low speed slide plate 34, low speed slide plate 34 is provided with hole 50, and the ends with parallel straight flange glide direction 50 are connected with tooth 49 in the hole; Be connected with side guide 36 on the high speed slide plate 35, side guide 36 is installed in the groove 27 of sliding pinion 26, and high speed slide plate 35 is provided with hole 52, and the centres with parallel straight flange glide direction 52 are connected with tooth 51 in the hole; Side guide 37 is vertical with low speed slide plate 34 with side guide 38, and side guide 37 is vertical with side guide 38; Side guide 36 is vertical with high speed slide plate 35.
Skateboard spring 41 is installed on the high speed slide plate 35, and the bending bar 40 of skateboard spring 41 is installed in the groove 39 on the base 16.
Be connected with the face of cylinder 47 and the face of cylinder 48 on the inner button 32, the face of cylinder 47 is provided with several and can meshes and the teeth 45 that separate with the tooth 49 on being connected low speed slide plate 34, and the face of cylinder 48 is provided with several and can meshes and the teeth 46 that separate with the tooth 51 on being connected high speed slide plate 35.
Usually gear wheel back-moving spring 11 is a stage clip; Clutch spring 20 is a stage clip; Skateboard spring 41 is a torsion spring.
Low speed slide plate 34 is arranged in the axial groove 30 that is parallel to power transmission shaft 24 on the base 16, can axially sliding in this groove along power transmission shaft 24; High speed slide plate 35 is arranged in the axial groove 31 that is parallel to power transmission shaft 24 on the base 16, can axially sliding in this groove along power transmission shaft 24.
When the present invention uses, outer knob is in five kinds of duties by moving low speed slide plate of the cingulum on the inner button and high speed slide plate: 1, outer knob is rotated counterclockwise on earth, under the promotion of low speed slide plate, the low speed gear wheel separates with low speed pinion, low speed gear wheel and check plate engagement, clutch combines Oscillating lever bearing and power transmission shaft under the effect of clutch spring, realizes single hammer function; 2, outer knob turns clockwise from single hammer position, and the low speed slide plate moves down, and the low speed gear wheel separates with check plate under the effect of gear wheel back-moving spring, realizes the neutral gear function; 3, outer knob turns clockwise from neutral position, and low speed continues slide plate and moves down, and the low speed gear wheel meshes with low speed pinion under the effect of gear wheel back-moving spring, realizes the hammer drill function; 4, outer knob turns clockwise from the hammer drill position, and the low speed slide plate continues to move down, and clutch separates with power transmission shaft under the promotion of low speed slide plate, realizes that low speed bores function; 5, outer knob turns clockwise from low speed brill position, and the low speed slide plate is motionless, and the high speed slide plate is moved by the cingulum on the inner button and moves down, under the promotion of high speed slide plate, the low speed gear wheel separates with low speed pinion, and high speed gear wheel and high speed pinion realize the high speed drill function.
Situation below above-mentioned functions is generally respectively corresponding: when outer knob 33 is rotated counterclockwise on earth, low speed slide plate 34 makes low speed gear wheel 12 separate low speed gear wheel 12 and 44 engagements of spline plate with low speed pinion 25 on the sliding pinion assembly 26; When outer knob 33 turns clockwise, spline plate 44 separates with low speed gear wheel 12; When outer knob 33 continues to turn clockwise, low speed slide plate 34 makes low speed pinion 25 engagements on low speed gear wheel 12 and the sliding pinion 26 under the promotion of inner button 32; When outer knob 33 continues to turn clockwise, low speed slide plate 34 makes clutch 21 separate with power transmission shaft 24 under the promotion of inner button 32; When outer knob 33 continues to turn clockwise, low speed slide plate 34 is motionless, high speed slide plate 35 makes low speed gear wheel 12 separate with low speed pinion 25 on the sliding pinion assembly 26 under the promotion of inner button 32, makes high speed pinion 29 engagements on high speed gear wheel 9 and the sliding pinion assembly 26.
The present invention has compared with prior art increased the high speed drill function, and compact conformation, and is simple to operate, can be realized the function conversion of electric hammer easily by a knob.
Description of drawings
Fig. 1 is the tag arrangement figure of five kinds of functions such as the single hammer, neutral gear, hammer drill, low speed brill, high speed drill of the dual-speed multifunctional electric hammer shown in the embodiment 1, the respectively corresponding above-mentioned five kinds of functional labels of mark 1-5 among the figure.
Fig. 2 is the structural representation of the dual-speed multifunctional electric hammer front end transmission control part branch shown in the embodiment 1 at single hammer state.
Fig. 3 is the A-A profile among Fig. 2.
Fig. 4 is the engagement schematic diagram of tooth between inner button among Fig. 2 and high speed slide plate and the low speed slide plate.
Fig. 5 is the structural representation of the dual-speed multifunctional electric hammer front end transmission control part branch shown in the embodiment 1 at neutral state.
Fig. 6 is the engagement schematic diagram of tooth between inner button among Fig. 5 and high speed slide plate and the low speed slide plate.
Fig. 7 is the structural representation of the dual-speed multifunctional electric hammer front end transmission control part branch shown in the embodiment 1 at the hammer drill state.
Fig. 8 is the engagement schematic diagram of tooth between inner button among Fig. 7 and high speed slide plate and the low speed slide plate.
Fig. 9 is the dual-speed multifunctional electric hammer front end transmission control part branch shown in the embodiment 1 bores state at low speed a structural representation.
Figure 10 is the engagement schematic diagram of tooth between inner button among Fig. 9 and high speed slide plate and the low speed slide plate.
Figure 11 is the structural representation of the dual-speed multifunctional electric hammer front end transmission control part branch shown in the embodiment 1 at the high speed drill state.
Figure 12 is the engagement schematic diagram of tooth between inner button among Figure 11 and high speed slide plate and the low speed slide plate.
Figure 13 is the perspective view (removing front end shell) that the front end transmission control part of the dual-speed multifunctional electric hammer shown in the embodiment 1 is divided.
Figure 14 is the perspective view (removing front end shell) that the front end transmission control part of the dual-speed multifunctional electric hammer shown in the embodiment 1 is divided.
Figure 15 is the perspective view of inner button.
Figure 16 is the perspective view between inner button and high speed slide plate and the low speed slide plate.
Figure 17 is the perspective view between inner button and the high speed slide plate.
The specific embodiment
Below in conjunction with drawings and Examples invention is further described.
Dual-speed multifunctional electric hammer shown in the embodiment accompanying drawing comprises front end component and back-end component (not shown); Front end component is the transmission control part branch, and back-end component is power section.
Front end component comprises front end shell 15, is connected the base 16 on the front end shell 15, transmission shaft component 17, impacting shaft assembly 6, low speed gear wheel 12, high speed gear wheel 9, gear wheel back-moving spring 11, low speed slide plate 34, high speed slide plate 35, skateboard spring 41, sliding pinion assembly 26, inner button 32, outer knob 33, spline plate 44, wherein:
Transmission shaft component 17 mainly by power transmission shaft 24, be sleeved on gear 18 on the power transmission shaft 24, be sleeved on Oscillating lever bearing 19 on the power transmission shaft 24, be sleeved on endwisely slipping on the Oscillating lever bearing 19 to form with power transmission shaft 24 engagements or the clutch 21 that separates, the clutch spring 20 that is arranged between Oscillating lever bearing 19 and the clutch 21; Gear 18 engagements on the output shaft of power section and the power transmission shaft 24 drive power transmission shaft 24 and rotate.Have internal spline on the clutch 21, be meshed with Oscillating lever bearing 19.
Sliding pinion assembly 26 is sleeved on the power transmission shaft 24, is connected with power transmission shaft 24 with key 28, only endwisely slipping along power transmission shaft 24.Be connected with low speed pinion 25 and high speed pinion 29 on the sliding pinion assembly 26.
Have external splines 22 on the outer circumference surface of the intermediate ends of power transmission shaft 24, external splines 22 can be meshed with clutch 21; Clutch back-up ring 23 is installed on power transmission shaft 24, and clutch back-up ring 23 can be used for the axial location of clutch 21.
Clutch spring 20 is a stage clip, makes clutch 21 be in the axial location that meshes with external splines 22 when normality.
Impacting shaft assembly 6 is mainly by impacting shaft 7, circlip 8, gear wheel back-moving spring 11, drive low speed gear wheel 12 and high speed gear wheel 9 that impacting shaft 7 rotates, driving is arranged on piston 14 compositions that the drill bit in the impacting shaft 7 moves vertically, low speed gear wheel 12 is sleeved on the impacting shaft 7, connect with key 13, endwisely slipping along impacting shaft 7 only, high speed gear wheel 9 is sleeved on the impacting shaft 7, connect with key 10, endwisely slipping along impacting shaft 7 only, circlip 8 is used for low speed gear wheel 12 and high speed gear wheel 9 location, and gear wheel back-moving spring 11 makes low speed gear wheel 12 and high speed gear wheel 9 be in two ends during normality.
High speed slide plate 35 is arranged in the axial groove 31 that is parallel to power transmission shaft 24 on the base 16, can axially sliding in this groove along power transmission shaft 24; Low speed slide plate 34 is arranged in the axial groove 30 that is parallel to power transmission shaft 24 on the base 16, can axially sliding in this groove along power transmission shaft 24.
Connect perpendicular side guide 37 and side guide 38 on the low speed slide plate 34, low speed slide plate 34 is during along the moving axially of power transmission shaft 24, side guide 37 can be stirred low speed gear wheel 12 and move axially, side guide 38 can be stirred clutch 21 and move axially, low speed slide plate 34 is provided with hole 50, and the ends with parallel straight flange glide direction 50 are connected with tooth 49 in the hole; Be connected with side guide 36 on the high speed slide plate 35, side guide 36 is installed in the groove 27 of sliding pinion 26, high speed slide plate 35 is during along the moving axially of power transmission shaft 24, side guide 36 can be stirred sliding pinion 26 and move axially, high speed slide plate 35 is provided with hole 52, and the centres with parallel straight flange glide direction 52 are connected with tooth 51 in the hole.
Skateboard spring 41 is installed in (referring to Fig. 7) on the high speed slide plate 35, and the bending bar 40 of skateboard spring 41 is installed in the groove 39 on the base 16, and skateboard spring 41 can be stirred high speed slide plate 35, makes tooth 45 engagements on the tooth 51 that is connected high speed slide plate 35 and the inner button 32.
Inner button 32 is arranged on the base 16 in the hole, is connected with the face of cylinder 47 and the face of cylinder 48 on the inner button 32, and the face of cylinder 47 is provided with several teeth 45, and the face of cylinder 48 is provided with several teeth 46; Tooth 45 can mesh with the tooth 49 on being connected low speed slide plate 34 and separate; Tooth 46 can mesh with the tooth 51 on being connected high speed slide plate 35 and separate, outer knob 33 is installed on the inner button 32, rotation outer knob 33 can promote low speed slide plate 34 and high speed slide plate 35 endwisely slipping or transfixion (referring to Figure 15,16,17) along power transmission shaft 24.
The situation of five kinds of functions that present embodiment is realized is as follows:
Outer knob 33 is in single hammer 1 position (referring to Fig. 2,4), and the tooth 51 of high speed slide plate 35 separates with the tooth 46 of inner button 32, and high speed slide plate 35 makes the high speed pinion 29 on the sliding pinion assembly 26 separate with high speed gear wheel 9.The tooth 49 of low speed slide plate 34 and 45 engagements of the tooth of inner button 32, under the promotion of the side guide on the low speed slide plate 34 37, low speed gear wheel 12 separates with low speed pinion 25 on the sliding pinion assembly 26, low speed gear wheel 12 and 44 engagements of spline plate, impacting shaft 6 does not change, clutch 21 under the effect of clutch spring 20 with external splines 22 engagement of power transmission shaft 24, Oscillating lever bearing 19 combines with power transmission shaft 24, at this moment can realize single hammer function.
Outer knob 33 is rotated clockwise to neutral gear 2 positions (referring to Fig. 5,6), and the tooth 51 of high speed slide plate 35 still separates with the tooth 46 of inner button 32, and high speed slide plate 35 is motionless.Low speed slide plate 34 is promoted to move down by the tooth 45 of inner button 32, low speed gear wheel 12 moves under the effect of gear wheel back-moving spring 11, separates with spline plate 44, and at this moment low speed gear wheel 12 does not mesh with low speed pinion 25, other part is motionless, at this moment can realize the neutral gear function.
Outer knob 33 continues to be rotated clockwise to hammer drill 3 positions (referring to Fig. 7,8), and the tooth 51 of high speed slide plate 35 still separates with the tooth 46 of inner button 32, and high speed slide plate 35 is motionless.Low speed slide plate 34 is promoted to continue to move down by the tooth 45 of inner button 32, and low speed gear wheel 12 moves under the effect of gear wheel back-moving spring 11, and with low speed pinion 25 engagements, other part is motionless, at this moment can realize the hammer drill function.
Outer knob 33 continues to be rotated clockwise to low speed and bores 4 positions (referring to Fig. 9,10), and the tooth 51 of high speed slide plate 35 still separates with the tooth 46 of inner button 32, and high speed slide plate 35 is motionless.Low speed slide plate 34 is promoted to move down by the tooth 45 of inner button 32, side guide 38 on the low speed slide plate 34 presses down clutch 21, clutch 21 is separated with the external splines 22 of power transmission shaft 24, Oscillating lever bearing 19 is not worked, circlip 8 axially blocks low speed gear wheel 12, it is still meshed with low speed pinion 25, and other part is motionless, can realize that at this moment low speed bores function.
Outer knob 33 continues to be rotated clockwise to high speed drill 4 positions (referring to Figure 11,12), and the tooth 49 of low speed slide plate 34 separates with the tooth 45 of inner button 32, and low speed slide plate 34 is motionless.Tooth 45 with inner button 32 under the stirring of the tooth 51 slide plate bullet torsion springs 41 of high speed slide plate 35 meshes, under the promotion of inner button 32, high speed slide plate 35 moves down, low speed gear wheel 12 is separated with low speed pinion 25 on the sliding pinion assembly 26, make high speed pinion 26 engagements on high speed gear wheel 9 and the sliding pinion assembly 26, other part is motionless, at this moment can realize the high speed drill function.

Claims (18)

1. dual-speed multifunctional electric hammer has single hammer, neutral gear, hammer drill, low speed brill function, it is characterized in that it also has the high speed drill function, realizes above-mentioned five kinds of function conversion by a knob.
2. according to the described dual-speed multifunctional electric hammer of claim 1, comprise the front end component that divides as transmission control part and as the back-end component of power section, front end component comprises front end shell (15), base (16), transmission shaft component (17), impacting shaft assembly (6), spline plate (44) is characterized in that:
Transmission shaft component (17) mainly comprises the power transmission shaft (24), the Oscillating lever bearing (19) that are connected with power section, be sleeved on the Oscillating lever bearing (19) endwisely slip with power transmission shaft (24) engagement or the clutch (21), the clutch spring (20) that separate;
Impacting shaft assembly (6) mainly comprises impacting shaft (7), circlip (8), be sleeved on endwisely slipping and drive low speed gear wheel (12) and high speed gear wheel (9), gear wheel back-moving spring (11) that impacting shaft (7) rotates, drive and be arranged on the piston (14) that the interior drill bit of impacting shaft (7) moves vertically on the impacting shaft (7);
It also comprises sliding pinion assembly (26), sliding pinion assembly (26) is sleeved on the power transmission shaft (24) in axial sliding, and sliding pinion assembly (26) is gone up low speed pinion (25) and the high speed pinion (29) that connection can be respectively meshed or separated with low speed gear wheel (12) and high speed gear wheel (9);
It also comprises can be along the slide plate of low speed in axial sliding (34) and the high speed slide plate (35) of power transmission shaft (24), and skateboard spring (41) is installed on the high speed slide plate (35); Be connected with on the low speed slide plate (34) and can stir low speed gear wheel (12) and axially movable side guide of clutch (21) (37) and side guide (38) respectively; High speed slide plate (35) is connected with can stir the axially movable side guide of sliding pinion (26) (36);
It also comprises the inner button (32) that is arranged in the last hole of base (16), outer knob (33) is installed on the inner button (32), is connected with endwisely slipping or actionless low speed slide plate (34) and high speed slide plate (35) along power transmission shaft (24) respectively on the inner button (32).
3. dual-speed multifunctional electric hammer according to claim 1 and 2, it is characterized in that single hammer, neutral gear, hammer drill, low speed bore, the implementation of five kinds of functions of high speed drill is: when outer knob (33) is rotated counterclockwise on earth, low speed slide plate (34) makes low speed gear wheel (12) separate with low speed pinion (25) on the sliding pinion assembly (26), low speed gear wheel (12) and spline plate (44) engagement are realized single hammer function; When outer knob (33) turns clockwise, spline plate (44) separates with low speed gear wheel (12), realizes empty hammer function; When outer knob (33) continues to turn clockwise, low speed slide plate (34) makes low speed pinion (25) engagement on low speed gear wheel (12) and the sliding pinion (26) under the promotion of inner button (32), realize the hammer drill function; When outer knob (33) continues to turn clockwise, low speed slide plate (34) makes clutch (21) separate with power transmission shaft (24) under the promotion of inner button (32), realizes that low speed bores function; When outer knob (33) continues to turn clockwise, low speed slide plate (34) is motionless, high speed slide plate (35) is under the promotion of inner button (32), low speed gear wheel (12) is separated with low speed pinion (25) on the sliding pinion assembly (26), make high speed pinion (29) engagement on high speed gear wheel (9) and the sliding pinion assembly (26), realize the high speed drill function.
4. dual-speed multifunctional electric hammer according to claim 2 is characterized in that and can be sleeved on the power transmission shaft (24) by key (28) along the assembly of sliding pinion in axial sliding (26) of power transmission shaft (24).
5. dual-speed multifunctional electric hammer according to claim 2 is characterized in that the two ends of sliding pinion assembly (26) are connected with low speed pinion (25) and high speed pinion (29) respectively, and the middle part of sliding pinion assembly (26) is connected with groove (27).
6. dual-speed multifunctional electric hammer according to claim 2, it is characterized in that can along impacting shaft (7) in axial sliding low speed gear wheel (12) be sleeved on the impacting shaft (7) by key (13); Can along impacting shaft (7) in axial sliding high speed gear wheel (9) be sleeved on the impacting shaft (7) by key (10); Be used for the circlip (8) of low speed gear wheel (12) and high speed gear wheel (9) axial location, gear wheel back-moving spring (11) is sleeved on the impacting shaft (7), places in the middle of low speed gear wheel (12) and the high speed gear wheel (9).
7. dual-speed multifunctional electric hammer according to claim 2 is characterized in that having the external splines (22) that can be meshed with clutch (21) on the outer circumference surface of the intermediate ends of power transmission shaft (24); The axial location clutch back-up ring (23) that can be used for clutch (21) is installed on power transmission shaft (24).
8. dual-speed multifunctional electric hammer according to claim 2 is characterized in that low speed slide plate (34) is provided with hole (50), and the ends with parallel straight flange glide direction (50) are connected with tooth (49) in the hole.
9. dual-speed multifunctional electric hammer according to claim 2 is characterized in that the side guide (36) that high speed slide plate (35) upward connects is installed in the groove (27) of sliding pinion (26); High speed slide plate (35) is provided with hole (52), and the centres with parallel straight flange glide direction (52) are connected with tooth (51) in the hole.
10. dual-speed multifunctional electric hammer according to claim 2 is characterized in that skateboard spring (41) is installed on the high speed slide plate (35), and the bending bar (40) of skateboard spring (41) is installed in the groove (39) on the base (16).
11. dual-speed multifunctional electric hammer according to claim 2 is characterized in that side guide (37) is vertical with low speed slide plate (34) with side guide (38), side guide (37) is vertical with side guide (38).
12. dual-speed multifunctional electric hammer according to claim 2 is characterized in that side guide (36) is vertical with high speed slide plate (35).
13. dual-speed multifunctional electric hammer according to claim 2, it is characterized in that being connected with on the inner button (32) face of cylinder (47) and the face of cylinder (48), the face of cylinder (47) is provided with several and can meshes and the tooth that separates (45) with the tooth (49) on being connected low speed slide plate (34), and the face of cylinder (48) are provided with several and can mesh and the tooth that separates (46) with the tooth (51) on being connected high speed slide plate (35).
14. dual-speed multifunctional electric hammer according to claim 2 is characterized in that gear wheel back-moving spring (11) is a stage clip.
15. dual-speed multifunctional electric hammer according to claim 2 is characterized in that clutch spring (20) is a stage clip.
16. dual-speed multifunctional electric hammer according to claim 2 is characterized in that skateboard spring (41) is a torsion spring.
17. dual-speed multifunctional electric hammer according to claim 2 is characterized in that low speed slide plate (34) is arranged in the axial groove (30) that is parallel to power transmission shaft (24) on the base (16), can axially sliding in this groove along power transmission shaft (24).
18. dual-speed multifunctional electric hammer according to claim 2 is characterized in that: high speed slide plate (35) is arranged in the axial groove (31) that is parallel to power transmission shaft (24) on the base (16), can axially sliding in this groove along power transmission shaft (24).
CNB2007101344976A 2007-10-30 2007-10-30 Dual-speed multifunctional electric hammer Active CN100513090C (en)

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CNB2007101344976A CN100513090C (en) 2007-10-30 2007-10-30 Dual-speed multifunctional electric hammer
EP20080167598 EP2055440B1 (en) 2007-10-30 2008-10-27 Multi-function double-speed rotary hammer

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WO2011088631A1 (en) * 2010-01-21 2011-07-28 浙江海王电器有限公司 Light single button multi-function electric hammer
WO2011088633A1 (en) * 2010-01-21 2011-07-28 浙江海王电器有限公司 Electric tool with transmission mechanism
CN102649266A (en) * 2012-04-16 2012-08-29 制尚电器(浙江)有限公司 Multifunctional double-speed electric hammer
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CN103538036A (en) * 2012-07-16 2014-01-29 罗伯特·博世有限公司 Switch unit
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WO2011088631A1 (en) * 2010-01-21 2011-07-28 浙江海王电器有限公司 Light single button multi-function electric hammer
US9227312B2 (en) 2010-01-21 2016-01-05 Zhejiang Haiwang Electric Machine Co., Ltd. Light single-button multifunctional electric hammer
CN102649266B (en) * 2012-04-16 2015-04-08 制尚电器(浙江)有限公司 Multifunctional double-speed electric hammer
CN102649266A (en) * 2012-04-16 2012-08-29 制尚电器(浙江)有限公司 Multifunctional double-speed electric hammer
CN103538036A (en) * 2012-07-16 2014-01-29 罗伯特·博世有限公司 Switch unit
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CN102765080B (en) * 2012-07-18 2014-12-24 宁波汉浦工具有限公司 Double-speed electric hammer
CN104552183A (en) * 2013-10-10 2015-04-29 苏州宝时得电动工具有限公司 Handheld electric tool
CN106826696A (en) * 2017-02-28 2017-06-13 东莞产权交易中心 Improved dustless percussion drill
CN109262549A (en) * 2017-07-17 2019-01-25 博世电动工具（中国）有限公司 Electric tool
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CN113165152A (en) * 2018-11-29 2021-07-23 工机控股株式会社 Striking working machine

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EP2055440A1 (en) 2009-05-06
EP2055440B1 (en) 2012-06-27

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