CN2917974Y - Multifunctional electric hammer - Google Patents

Multifunctional electric hammer Download PDF

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Publication number
CN2917974Y
CN2917974Y CN 200620074158 CN200620074158U CN2917974Y CN 2917974 Y CN2917974 Y CN 2917974Y CN 200620074158 CN200620074158 CN 200620074158 CN 200620074158 U CN200620074158 U CN 200620074158U CN 2917974 Y CN2917974 Y CN 2917974Y
Authority
CN
China
Prior art keywords
transmission shaft
clutch
power transmission
slide plate
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.)
Expired - Lifetime
Application number
CN 200620074158
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Chinese (zh)
Inventor
陈松年
杨庆生
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou Tongyang Electric Manufacturing Co., Ltd.
Original Assignee
SAIDI ELECTRIC MANUFACTURING Co Ltd CHANGZHOU
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by SAIDI ELECTRIC MANUFACTURING Co Ltd CHANGZHOU filed Critical SAIDI ELECTRIC MANUFACTURING Co Ltd CHANGZHOU
Priority to CN 200620074158 priority Critical patent/CN2917974Y/en
Application granted granted Critical
Publication of CN2917974Y publication Critical patent/CN2917974Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

The utility model relates to a multifunctional electric hammer possessing the functions of hammering, hammer drilling and drilling, which solves the problem of inconvenient operation and the damaged of the front shell by the to and fro axial moving of the transmission shaft when the two knobs combination of the existing multifunctional electric hammer controls the multifunctional conversion. The electric multifunctional hammer is composed of a front component and a rear component; the front component comprises a front shell, a base, a transmission shaft component, an impacting shaft, a sliding gear component, a slide plate, a slide plate spring, an eccentric pin, a cam and a knob. The sliding gear comprises a sliding shaft, a sliding gear connected on the sliding shaft and a sliding clutch; the sliding shaft and the transmission shaft are coaxial; an end of the sliding shaft enters into a hole arranged axially on an end of the transmission shaft, and the other end of the sliding shaft is supported by the shell; the transmission shaft is fixed axially on the base. The utility model realizes the conversion of three functions of the electric hammer by on knob, and has a reliable function, convenient positioning and operating.

Description

Multifunctional electric hammer
Technical field
The utility model relates to electric tool in the mechanical industry, specifically, is a kind of multifunctional electric hammer with functions such as hammer, hammer drill, brills.
Background technology
Have the multifunctional electric hammer of functions such as hammer, hammer drill, brill, comprise 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, is connected the base on the front end shell, transmission shaft component, impacting shaft assembly.
Transmission shaft component mainly by the power transmission shaft that is connected with the output shaft of power section, be sleeved on Oscillating lever bearing on the power transmission shaft, be sleeved on endwisely slipping on the Oscillating lever bearing to form with power transmission shaft engagement or the transmission clutch that separates, the clutch spring that is arranged between Oscillating lever bearing and the transmission clutch.The clutch spring makes transmission clutch be in the axial location that meshes with power transmission shaft when normality.
The impacting shaft assembly mainly by impacting shaft, drive gear wheel that impacting shaft rotates, drive and be arranged on the cylinder that the drill bit in the impacting shaft moves vertically and form.Cylinder is connected with Oscillating lever bearing on being sleeved on power transmission shaft.
Power transmission shaft one end in the transmission shaft component is supported on the base, and the other end is supported on the front end shell.Because being sleeved on Oscillating lever bearing on the power transmission shaft also is connected on the cylinder in the impacting shaft assembly, therefore mesh at transmission clutch and power transmission shaft, when Oscillating lever bearing moves, cylinder gives the Oscillating lever bearing reaction force, this reaction force makes power transmission shaft play back and forth vertically, like this, the front end shell of supporting shaft is easily damaged under the effect repeatedly of power transmission shaft, for example punctures, breaks.
In addition, the conversion between the functions such as its hammer, hammer drill, brill needs a hammer knob, two knobs of a brill knob are controlled.The active force that makes transmission clutch overcome the clutch spring during hammer knob moves vertically to separate with power transmission shaft or to mesh, control hammer function.Make gear wheel move vertically to separate with power transmission shaft or to mesh when boring knob, function is bored in control.With two set of knobs closing operations, realize three kinds of function conversion, this version user's inconvenient operation.
Summary of the invention
First problem that the utility model solves is exactly two multi-functional conversions of set of knobs closing operation of existing multifunctional electric hammer, the problem of inconvenient operation; The power transmission shaft that second problem that solves is exactly existing multifunctional electric hammer vertically back and forth play damage the problem of front end shell.The utility model provides by knob and has realized three function conversion of electric hammer and reliable effect, multifunctional electric hammer easy to install.
Multifunctional electric hammer described in the utility model 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 16, is connected the base 4 on the front end shell 16, transmission shaft component 5, impacting shaft assembly 1, balladeur train assembly 13, slide plate 19, skateboard spring 18, cam pin 25, cam 24, knob 17.Wherein:
Transmission shaft component 5 mainly by the power transmission shaft 6 that is connected with power section, be sleeved on Oscillating lever bearing 7 on the power transmission shaft 6, be sleeved on endwisely slipping on the Oscillating lever bearing 7 to mesh with power transmission shaft 6 or the transmission clutch 9 that separates, the clutch spring 8 that is arranged between Oscillating lever bearing 7 and the transmission clutch 9 are formed; Clutch spring 8 makes transmission clutch 9 be in the axial location that meshes with power transmission shaft 6 when normality.
Impacting shaft assembly 1 mainly by impacting shaft 1-1, drive gear wheel 1-2 that impacting shaft 1-1 rotates, drive and be arranged on the cylinder 1-3 that the drill bit in the impacting shaft 1-1 moves vertically and form.
Balladeur train assembly 13 mainly by sliding axle 12 in axial sliding, be connected balladeur train 15 on the sliding axle 12, the slip-clutch 14 that is connected on sliding axle 12 forms; Sliding axle 12 is coaxial with power transmission shaft 6; Stretching in the hole 30 that an end of power transmission shaft 6 is opened vertically of one end of sliding axle 12, the other end is supported on the front end shell 16; Power transmission shaft 6 axially is being fixed on the base 4; Realize with the engagement of power transmission shaft 6 when slip-clutch 14 endwisely slips or separate; Balladeur train 15 and gear wheel 1-2 engagement.
Slide plate 19 can be connected with and stir balladeur train assembly 13 axially movable side guides 21 along the endwisely slipping of sliding axle 12 on the slide plate 19; Skateboard spring 18 is connected on the slide plate 19, and skateboard spring 18 makes slip-clutch 14 be in the axial location with the engagement of power transmission shaft 6 by side guide 21 when normality.
Knob 17 is arranged in the hole of base 4, is connected with cam pin 25 and cam 24 on the knob 17; Cam 24 contacts with slide plate 19; Knob 17 is in the centre position, and the active force of skateboard spring 18 acts on the slip-clutch 14 by slide plate 19, makes slip-clutch 14 and power transmission shaft 6 engagements, and transmission clutch 9 meshes with power transmission shaft 6 under the active force of clutch spring 8; Knob 17 rotates counterclockwise, and cam 24 promotes slide plates 19 and overcomes the active force of skateboard spring 18 and drive balladeur train assembly 13 and move axially, and makes slip-clutch 14 be in the axial location that separates with power transmission shaft 6; Knob 17 clockwise rotates, and cam pin 25 promotes transmission clutches 9 and overcomes the active force of clutch spring 8 and move axially, and makes transmission clutch 9 be in the axial location that separates with power transmission shaft 6.
In the utility model, cam pin on the knob and cam driven clutch and slide plate are in three kinds of duties: 1, knob mediates, the slip-clutch of slide teeth shaft assembly combines with power transmission shaft under the effect of slide plate and skateboard spring, transmission clutch combines Oscillating lever bearing and power transmission shaft under the effect of clutch spring, realizes the hammer drill function; 2, knob turns clockwise from middle position, presses behind the cam pin, promotes transmission clutch Oscillating lever bearing is separated with power transmission shaft, and slide plate is motionless, realizes boring function; 3, knob rotates from middle inverse position hour hands, and cam promotes the slide plate reach, and the slip-clutch that side guide promotes the slide teeth shaft assembly separates with power transmission shaft, the cam pin reach, transmission clutch resets under the effect of clutch spring, and Oscillating lever bearing and power transmission shaft are combined, and realizes the hammer function.
In the utility model, the stretching in the hole that an end of power transmission shaft is opened vertically an of end of sliding axle, the other end is supported on the front end shell.Sliding axle can move axially with respect to power transmission shaft.Power transmission shaft axially is being fixed on the base.Therefore when Oscillating lever bearing moved, cylinder gave the Oscillating lever bearing reaction force, and this reaction force acts on the base by power transmission shaft, and can not pass to sliding axle.Therefore vertically stressed very little of sliding axle like this, supported the front end shell of sliding axle and do not damaged with regard to not impacting.
The utility model compared with prior art, compact conformation, simple to operate, can realize the function conversion of electric hammer easily.
Description of drawings
Fig. 1 is the structural representation of the multifunctional electric hammer front end transmission control part branch shown in the embodiment 1 at the hammer state.
Fig. 2 is the A-A profile among Fig. 1.
Fig. 3 is that the multifunctional electric hammer front end transmission control part branch shown in the embodiment 1 is boring the status architecture schematic diagram.
Fig. 4 is that the multifunctional electric hammer front end transmission control part branch shown in the embodiment 1 is at hammer drill status architecture schematic diagram.
Fig. 5 is the perspective view (removing front end shell) that the front end transmission control part of the multifunctional electric hammer shown in the embodiment 1 is divided.
Fig. 6 is the perspective view of the position relation of slide plate among Fig. 4 and knob (comprising cam pin, cam).
Fig. 7 is the perspective view of the position relation of slide plate among Fig. 3 and knob (comprising cam pin, cam).
Fig. 8 is the perspective view of the position relation of slide plate among Fig. 1 and knob (comprising cam pin, cam).
The specific embodiment
Below in conjunction with accompanying drawing the utility model is further described.
Multifunctional electric hammer shown in the figure 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 16, is connected the base 4 on the front end shell 16, transmission shaft component 5, impacting shaft assembly 1, balladeur train assembly 13, slide plate 19, skateboard spring 18, cam pin 25, cam 24, knob 17.
Transmission shaft component 5 mainly by power transmission shaft 6, be sleeved on Oscillating lever bearing 7 on the power transmission shaft 6, be sleeved on endwisely slipping on the Oscillating lever bearing 7 to form with power transmission shaft 6 engagements or the transmission clutch 9 that separates, the clutch spring 8 that is arranged between Oscillating lever bearing 7 and the transmission clutch 9.Gear 33 engagements on the output shaft of power section and the power transmission shaft 6 drive power transmission shaft 6 and rotate.Have internal spline on the transmission clutch 9, be meshed with Oscillating lever bearing 7.
Power transmission shaft 6 is axially fixed on the base 4 by suit bearing 3, bearing plate 2 and bolt 20 thereon.
On the outer circumference surface of close slide teeth axle 15 1 ends of power transmission shaft 6, be provided with external splines 11; At power transmission shaft 6 clutch back-up ring 10 is installed, clutch back-up ring 10 is divided into external splines 11 left and right sides two parts that can be meshed with slip-clutch 14, transmission clutch 9 respectively.
Clutch spring 8 is a stage clip, makes transmission clutch 9 be in and axial location in external splines 11 engagement on clutch back-up ring 10 right sides when normality.
Impacting shaft assembly 1 mainly by impacting shaft 1-1, drive gear wheel 1-2 that impacting shaft 1-1 rotates, drive and be arranged on the cylinder 1-3 that the drill bit in the impacting shaft 1-1 moves vertically and form.
Balladeur train assembly 13 mainly by sliding axle 12 in axial sliding, be connected forming on the sliding axle 12 with the balladeur train 15 of gear wheel 1-2 engagement, the slip-clutch 14 that is connected on sliding axle 12; Sliding axle 12 is coaxial with power transmission shaft 6; Stretching in the hole 30 that an end of power transmission shaft 6 is opened vertically of one end of sliding axle 12, the other end is supported on the front end shell 16.Slip-clutch 14 is provided with internal spline, realize when it endwisely slips with in external splines 11 engagements in clutch back-up ring 10 left sides or separate.
Slide plate 19 is arranged on being parallel in the axial groove 32 of sliding axle 12 on the base 4, can axially sliding in this groove along sliding axle 12.Slide plate 19 is provided with hole 26.
Be connected with perpendicular side guide 21 on the slide plate 19.Flange 31 is set on the outer circumference surface of slip-clutch 14, on the side guide 21 relative with flange 31 groove 22 is set, flange 31 stretches in the groove 22.Side guide 21 drives balladeur train assembly 13 during along the moving axially of sliding axle 12 and moves axially.
Skateboard spring 18 is extension spring, and an end is connected on the base 4, and the other end is connected on the slide plate 19.Skateboard spring 18 makes slip-clutch 14 be in and axial location in external splines 11 engagement in clutch back-up ring 10 left sides by side guide 21 when normality.
Knob 17 is arranged on the base 4 in the hole, is connected with cam pin 25 and cam 21 on the knob 17.Cam 24 is arranged in the hole 26, and cam 24 contacts with slide plate 19 by an inner side edge 23 in hole 26.Knob 17 is in the centre position, see Fig. 4, the active force of skateboard spring 18 acts on the slip-clutch 14 by slide plate 19, make the left part engagement of slip-clutch 14 and the external splines 11 of power transmission shaft 6, transmission clutch 9 under the active force of clutch spring 8 with the right side part engagement of the external splines 11 of power transmission shaft 6; Knob 17 rotates from middle inverse position hour hands, see Fig. 1, cam 24 promotes active force that slide plates 19 overcome skateboard spring 18 by the inner side edge that is in contact with it 23 and drives balladeur train assembly 13 and move axially, make slip-clutch 14 be in the axial location that separates with power transmission shaft 6, at this moment can realize hammering into shape function.Knob 17 clockwise rotates from middle position, sees Fig. 3, and cam pin 25 promotes transmission clutches 9 and overcomes the active force of clutch spring 8 and move axially, and makes transmission clutch 9 be in the axial location that separates with power transmission shaft 6, at this moment can realize boring function.
Knob 17 mediate (referring to Fig. 6,4), cam pin 25 separates with transmission clutch 9, transmission clutch 9 under the effect of clutch spring 8 with external splines 11 engagement of power transmission shaft 6, slide plate 19 drives slide teeth axle 15 and moves under the effect of slide plate extension spring 18, the slip-clutch 14 and the external splines 11 of power transmission shaft 6 are meshed, realize the hammer drill function.
Knob 17 turns clockwise from middle position (referring to Fig. 7,3), drives cam pin 25 promotion transmission clutches 9 and moves, and Oscillating lever bearing 7 is separated with power transmission shaft 6, and slide plate 19 is motionless, realizes boring function.
Knob 17 rotates (referring to Fig. 8,1) from middle inverse position hour hands, knob cam 24 promotes slide plate 19 reaches, the slip-clutch 14 that slide plate 19 promotes slide teeth axle 15 separates with power transmission shaft 6, cam pin 25 reaches, transmission clutch 9 resets under the effect of clutch stage clip 8, Oscillating lever bearing 7 and power transmission shaft 6 are combined, realize the hammer function.

Claims (10)

1, multifunctional electric hammer comprises 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 (16), base (4), transmission shaft component (5) and impacting shaft assembly (1);
Transmission shaft component (5) comprises the power transmission shaft (6), the Oscillating lever bearing (7) that are connected with power section, be sleeved on the Oscillating lever bearing (7) endwisely slip with power transmission shaft (6) engagement or the transmission clutch (9), the clutch spring 8 that separate; Impacting shaft assembly (1) comprises impacting shaft (1-1), gear wheel (1-2), cylinder (1-3); It is characterized in that:
It also comprises balladeur train assembly (13), slide plate (19), skateboard spring (18), knob (17); Balladeur train assembly (13) comprises sliding axle (12), is connected balladeur train (15) and slip-clutch (14) on the sliding axle (12); Balladeur train (15) and gear wheel (1-2) engagement; Sliding axle (12) is coaxial with power transmission shaft (6); Sliding axle (12) one ends stretch in the hole of power transmission shaft (6) one ends, and the other end is supported on the front end shell (16); Power transmission shaft (6) axially is being fixed on the base (4);
It also comprises and can and be connected skateboard spring (18) on the slide plate (19) along the slide plate in axial sliding (19) of sliding axle (12), is connected with and stirs the axially movable side guide of balladeur train assembly (13) (21) on the slide plate (19);
It also comprises and is arranged on knob (17) in the last hole of base (4), that be connected with cam pin (25) and cam (24); Cam (24) contacts with slide plate (19); Knob (17) is in the centre position, and slip-clutch (14), transmission clutch (9) mesh with power transmission shaft (6); Knob (17) rotates counterclockwise, and cam (24) promotes slide plate (19) and moves, and makes slip-clutch (14) separate with power transmission shaft (6); Knob (17) clockwise rotates, and cam pin (25) promotes transmission clutch (9) and moves axially, and makes transmission clutch (9) separate with power transmission shaft (6).
2, multifunctional electric hammer according to claim 1, it is characterized in that: flange (31) is set on the outer circumference surface of slip-clutch (14), on the side guide (21) relative with flange (31) groove (22) is set, flange (31) stretches in the groove (22).
3, multifunctional electric hammer according to claim 1 is characterized in that: slide plate (19) is provided with hole (26), and cam (24) is arranged in the hole (26), and cam (24) contacts with slide plate (19) by an inner side edge in hole (26).
4, multifunctional electric hammer according to claim 1 is characterized in that: power transmission shaft (6) is axially fixed on the base (4) by suit bearing (3) thereon.
5, multifunctional electric hammer according to claim 1 is characterized in that: have external splines (11) on the outer circumference surface of close slide teeth shaft assembly (13) one ends of power transmission shaft (6); Clutch back-up ring (10) is installed on power transmission shaft (6), clutch back-up ring (10) with external splines (11) be divided into can be respectively with the slip-clutch that has internal spline (14), have two parts that the transmission clutch (9) of internal spline is meshed.
6, multifunctional electric hammer according to claim 1 is characterized in that: slide plate (19) is vertical with side guide (21).
7, multifunctional electric hammer according to claim 1 is characterized in that: clutch spring (8) is a stage clip.
8, multifunctional electric hammer according to claim 1 is characterized in that: skateboard spring (18) is extension spring.
9, multifunctional electric hammer according to claim 1 is characterized in that: skateboard spring (18) one ends are connected on the base (4), and the other end is connected on the slide plate (19).
10, multifunctional electric hammer according to claim 1 is characterized in that: slide plate (19) is arranged on being parallel in the axial groove (32) of sliding axle (12) on the base (4), and slide plate (19) can slide along this groove.
CN 200620074158 2006-06-20 2006-06-20 Multifunctional electric hammer Expired - Lifetime CN2917974Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN 200620074158 CN2917974Y (en) 2006-06-20 2006-06-20 Multifunctional electric hammer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN 200620074158 CN2917974Y (en) 2006-06-20 2006-06-20 Multifunctional electric hammer

Publications (1)

Publication Number Publication Date
CN2917974Y true CN2917974Y (en) 2007-07-04

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ID=38215781

Family Applications (1)

Application Number Title Priority Date Filing Date
CN 200620074158 Expired - Lifetime CN2917974Y (en) 2006-06-20 2006-06-20 Multifunctional electric hammer

Country Status (1)

Country Link
CN (1) CN2917974Y (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101903135A (en) * 2007-12-21 2010-12-01 罗伯特·博世有限公司 Portable power tool
CN106272263A (en) * 2015-06-01 2017-01-04 苏州宝时得电动工具有限公司 Percussion mechanism and power tool
CN106553160A (en) * 2015-09-30 2017-04-05 南京德朔实业有限公司 Arrangement of clutch and the electric hammer with the arrangement of clutch
CN108180283A (en) * 2018-01-04 2018-06-19 锐奇控股股份有限公司 Gear adjusting device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101903135A (en) * 2007-12-21 2010-12-01 罗伯特·博世有限公司 Portable power tool
CN101903135B (en) * 2007-12-21 2014-05-14 罗伯特·博世有限公司 Portable power tool
EP2234771B1 (en) * 2007-12-21 2018-01-17 Robert Bosch GmbH Portable power tool
CN106272263A (en) * 2015-06-01 2017-01-04 苏州宝时得电动工具有限公司 Percussion mechanism and power tool
CN106272263B (en) * 2015-06-01 2019-02-19 苏州宝时得电动工具有限公司 Percussion mechanism and power tool
CN106553160A (en) * 2015-09-30 2017-04-05 南京德朔实业有限公司 Arrangement of clutch and the electric hammer with the arrangement of clutch
CN106553160B (en) * 2015-09-30 2019-08-06 南京德朔实业有限公司 Arrangement of clutch and electric hammer with the arrangement of clutch
CN108180283A (en) * 2018-01-04 2018-06-19 锐奇控股股份有限公司 Gear adjusting device

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Legal Events

Date Code Title Description
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: CHANGZHOU TONGYANG ELECTRIC MANUFACTURING CO., LTD

Free format text: FORMER OWNER: SAIDI ELECTRIC MANUFACTURING CO., LTD., CHANGZHOU

Effective date: 20140310

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20140310

Address after: 213000 Jiangsu province Changzhou Fengxiang Economic Development Zone, Zhonglou District Road No. 55

Patentee after: Changzhou Tongyang Electric Manufacturing Co., Ltd.

Address before: 213000 Jiangsu province Changzhou City Zhonglou District New Gate Industrial Park Xinlong Road No. 18

Patentee before: Saidi Electric Manufacturing Co., Ltd., Changzhou

CX01 Expiry of patent term

Granted publication date: 20070704

EXPY Termination of patent right or utility model