EP2055440A1 - Multi-function double-speed rotary hammer - Google Patents
Multi-function double-speed rotary hammer Download PDFInfo
- Publication number
- EP2055440A1 EP2055440A1 EP08167598A EP08167598A EP2055440A1 EP 2055440 A1 EP2055440 A1 EP 2055440A1 EP 08167598 A EP08167598 A EP 08167598A EP 08167598 A EP08167598 A EP 08167598A EP 2055440 A1 EP2055440 A1 EP 2055440A1
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- EP
- European Patent Office
- Prior art keywords
- speed
- function
- gear
- low
- getting
- 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.)
- Granted
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Classifications
-
- 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
Definitions
- This patent relates to a rotary hammer which is one of kinds of power tools, it uses only one function knob to realize 5 functions, such as
- Function a (only chiseling) is adapted for working at making wiring slot on wall which is made of concrete or brick, and removing tilt on the wall.
- Function b (adjusting the working angel of flat chisel): sometimes, the end-user changes the working angel of flat chisel when working, they should set the function knob at this position, and select the proper angle, then put the function knob to the function A to work continuously.
- Function d (only drilling with low speed;): mainly used for drilling holes in steel or wood, when the diameter of hole is less than 10mm, but when diameter of hole is bigger than 10 mm, the drilling speed becomes lower.
- this Multi-function Double-speed Rotary hammer has been added the function of only drilling with high speed (function E), it not only has a tight structure, it also can be operated simply, because it has only one knob which can conveniently achieve functions switch.
- this patent is related to invent one multi-function double-speed rotary hammer with single function knob to realize 5 functions such as
- present invention is characterized that the tool use only one function to realize 5 functions above, especially it has the function e( only drilling with high speed).
- the present invention shows how to realize the 5 functions in details:
- the tool mainly includes front parts and rear part, the front part is gear system, the rear part is motor system; the front part includes gear housing 15, base 16, transmission shaft assembly 17, Impact shaft assembly 6, shaft lock assembly 44, the character is below:
- Transmission shaft assembly 17 mainly includes transmission shaft 24, wobble bearing 19, and clutch 21 which can gear or ungear with transmission shaft 24, and spring 20 for clutch system.
- Impact shaft assembly 6 mainly includes impact shaft 7, lock ring 8, low-speed gear 12 which in installed in the impact shaft 7 and may drive impact shaft 7, high-speed gear 9, back-forward spring 11, cylinder 14.
- the tool also includes gear assembly 26 which is fixed on transmission shaft 24 and can move along with transmission shaft 24; gear assembly 26 includes a low-speed pinion 25 which gears or ungears with low-speed gear 12 in transmission shaft assembly 17 and a high-speed pinion 29 which gears with a high-speed gear 9 in transmission shaft assembly 17.
- the tool also includes one function-adjusting board 34 for getting low-speed and one function-adjusting board 35 for getting high-speed, spring 41 is installed in the function-adjusting board 35 for getting high-speed; function-adjusting board 34 for getting low-speed is connected with side pin 37 and 38 which can move low-speed gear 12 and clutch 21 respectively along transmission shaft 24.
- the function-adjusting board 35 for getting high-speed connected with side pin 36 which may move gear assembly 26 along the direction of shaft.
- the tool also has a inner function knob 32 in the base 16, outside function knob 33 is fixed with inner function knob 32 which is connected with one function-adjusting board 34 for getting low-speed which can move along transmission shaft 24 for getting low speed and a function-adjusting board 35 for getting high-speed which is fixed.
- gear assembly 26 is fixed on transmission shaft 24 by a flat key 28, it only can move along with transmission shaft 24; at the two ends of gear assembly 26, it has low-speed pinion 25 and high-speed pinion 29; the slot 27 is in the middle area of gear assembly 26.
- Low-speed gear 12 is fixed in the impact shaft 7 by a flat key 13, it only can axially move along with impact shaft 7.
- High-speed gear 9 is installed on the impact shaft 7 by key 10, it can only move along with impact shaft 7 axially.
- the lock ring 8 is used for stopping low-speed gear 12 and high-speed gear 9 to move axially; back-forward spring 11 is installed between low-speed gear 12 and high-speed gear 9 on the impact shaft 7.
- the function-adjusting board 34 for getting low-speed is connected with side pin 37 and 38, it has one hole 50, there is teeth 49 at one side parallel with moving direction;
- the function-adjusting board 35 for getting high-speed is connected with side pin 36 which is fixed in the slot 27 of the sliding gear assembly 26, there is a hole 52 on the function-adjusting board 35 for getting high-speed, it has one teeth 51 in at least one side of hole 52 parallel with moving direction.
- Side pin 37 and 38 are perpendicular with function-adjusting board 34 for getting low-speed
- side pin 37 is perpendicular with the side pin 38
- side pin 36 is perpendicular with function-adjusting board 35 for getting high-speed.
- the spring 41 is installed on function-adjusting board 35 for getting high-speed; the bended bar 40 is installed in the slot 39 of the base 16.
- the cylinder surface 48 has several teeth 46 which can gear or ungear with teeth 51 in function-adjusting board 35 for getting high-speed.
- back-forward spring 11 is used for the restoration back-forward spring 11 installed on the big gear is press spring, spring 20 installed on the clutch is press spring too, and the spring 41 installed on board is wiggly spring.
- Function-adjusting board 34 for getting low-speed is installed in the slot 30 which is in the base 16 and parallel with transmission shaft 24 axially, and can slide along transmission shaft 24 axially in the groove
- function-adjusting board 35 for getting high-speed is installed in the slot 31 which is in the base 16 and parallel with transmission shaft 24 axially, it can slide along transmission shaft 24 axially in the groove.
- This tool can get 5-function mode by controlling the function-adjusting board 34 and 35 with outside function knob 33.
- function-adjusting board 34 for getting low-speed causes that:
- function-adjusting board 34 for getting low-speed helps low-speed gear 12 to ungear with low-speed pinion 25 which is included in gear assembly 26. While Low-speed gear 12 gears with shaft lock assembly 44, it achieves the function of only chiseling;
- shaft lock assembly 44 When rotating the outside function knob 33 to position 2 in FIG 1 , shaft lock assembly 44 ungears with low-speed gear 12, then it achieves the function of adjusting the working angel of flat chisel;
- function-adjusting board 34 for getting low-speed helps low-speed gear 12 to gear with low-speed pinion 25 which is included in gear assembly 26, it achieves the function of drilling & chiseling;
- function-adjusting board 34 for getting low-speed helps clutch 21 to ungear with transmission shaft 24, it achieves the function of only drilling with low-speed;
- function-adjusting board 34 for getting low-speed doesn't work, under the pushing of inner function knob 32, function-adjusting board 35 for getting high-speed helps high-speed gear 9 to gear with high-speed pinion 29 which is included in gear assembly 26, it achieves the function of only drilling with high-speed.
- the invention relates to one multi-function double-speed rotary hammer which includes front part and rear part, the front part is gear system, the rear part is motor system.
- the front part includes gear housing 15 and it's inside components, such as base 16, transmission shaft assembly 17, Impact shaft assembly 6, low-speed gear 12, high-speed gear 9, back-forward spring 11, function-adjusting board 34 for getting low-speed, function-adjusting board 35 for getting high-speed, spring 41, gear assembly 26 (including low-speed pinion 25 and high-speed pinion 29) and shaft lock assembly 44.
- gear housing 15 and it's inside components, such as base 16, transmission shaft assembly 17, Impact shaft assembly 6, low-speed gear 12, high-speed gear 9, back-forward spring 11, function-adjusting board 34 for getting low-speed, function-adjusting board 35 for getting high-speed, spring 41, gear assembly 26 (including low-speed pinion 25 and high-speed pinion 29) and shaft lock assembly 44.
- Transmission shaft assembly 17 mainly includes transmission shaft 24, pinion 18 fixed on transmission shaft 24, wobble bearing 19, clutch 21 which can gear or ungear with transmission shaft 24, and spring 20 for clutch system; the pinion in armature will gear with the pinion 18 and drives transmission shaft 24.
- clutch 21 There is inner spline key in clutch 21; the spline key is used to gear with wobble bearing 19.
- Gear assembly 26 is installed with transmission shaft 24 by a flat key 28, it only can move along transmission shaft 24 axially.
- Gear assembly 26 has low-speed pinion 25 and high-speed pinion 29.
- spline key 22 is used to make clutch 21 to gear with transmission shaft 24.
- the clutch is fixed to transmission shaft 24 with one Lock ring 23.
- Spring 20 is used for reversing clutch 21 to gear with spline key 22 of transmission shaft 24.
- Impact shaft assembly 6 mainly includes impact shaft 7, lock ring 8, back-forward spring 11 for high-speed gear 9, low-speed gear 12 which in installed in the impact shaft 7 by key 13 and may drive impact shaft 7, high-speed gear 9, cylinder 14.
- High-speed 9 is installed in impact shaft 7 by key 10, and it only can move along with the impact shaft 7 axially.
- Lock ring 8 is used to position low-speed gear 12 and high-speed gear 9.
- Low-speed gear 12 and high-speed gear 9 are at the two ends of back-forward spring 11.
- Function-adjusting board 35 for getting high-speed is positioned in the slot 31 parallel with the axis of transmission shaft 24. and it can move back and forward along the slot 31 in base 16.
- Function-adjusting board 34 for getting low-speed is positioned the slot 30 parallel with the axis of transmission shaft 24, it also can move back and forward along the slot 30 in base 16.
- function-adjusting board 34 for getting low-speed has side pin 37 and side pin 38.
- Side pin 37 is used to move low-speed gear 12
- side pin 38 is used to move clutch 21.
- There is a hole 52 in function-adjusting board 35 for getting high-speed the middle of the side parallel with its moving direction in the hole 52 has teeth 51.
- the spring 41 is installed in the function-adjusting board 35 for getting high-speed.
- the bended bar 40 for spring 41 is installed in the slot 39 of base 16.
- the spring 41 can move the function-adjusting board 35 for getting high-speed and have teeth 51 in function-adjusting board 35 for getting high-speed and teeth 45 in inner function knob 32 to gear with each other.
- Inner function knob 32 is positioned in one hole of base 16, it is characterized that there are cylinder surface 47 and 48 in inner function knob 32. There are several teeth 45 in cylinder surface 47 and several teeth 46 in cylinder surface 48. Teeth 45 can gear or ungear with teeth 49 in function-adjusting board 34 for getting low-speed. Teeth 46 can gear or ungear with teeth 51 in function-adjusting board 35 for getting high speed.
- Outside function knob 33 is connected with inner function knob 32. When outside function knob 33 is rotated, the function-adjusting board 34 and 35 can move axially along with transmission shaft 24 or keep still (see FIG 15, FIG 16, FIG 17 ).
- Position 1 only chiseling (see FIG 2, FIG 4)
- Position 2 adjusting the working angel of flat chisel (see FIG 5, FIG 6)
- Function-adjusting board 34 for getting low-speed is pushed forward by force from teeth 45 of inner function knob 32, low-speed gear 12 gears with low-speed pinion 25 under the help of back-forward spring 11, the other components don't move or change their position. Now it achieves the function of Drilling & chiseling. (see FIG 7 , 8 )
Abstract
Description
- This patent relates to a rotary hammer which is one of kinds of power tools, it uses only one function knob to realize 5 functions, such as
- a. only chiseling;
- b. adjusting the working angel of flat chisel;
- c. drilling & chiseling
- d. only drilling with low speed;
- e. only drilling with high speed.
- So far, the available vary kinds of rotary hammers in market have no more than 4 functions, such as
- a. only chiseling;
- b. adjusting the working angel of flat chisel;
- c. drill & chisel;
- d. only drilling with low speed
- Function a (only chiseling) is adapted for working at making wiring slot on wall which is made of concrete or brick, and removing tilt on the wall.
- Function b (adjusting the working angel of flat chisel): sometimes, the end-user changes the working angel of flat chisel when working, they should set the function knob at this position, and select the proper angle, then put the function knob to the function A to work continuously.
- Function c (drill & chisel): for drilling holes on the wall made of concrete or brick.
- Function d (only drilling with low speed;): mainly used for drilling holes in steel or wood, when the diameter of hole is less than 10mm, but when diameter of hole is bigger than 10 mm, the drilling speed becomes lower.
- To compare with the tool based on this patent and available rotary hammer in the market, this Multi-function Double-speed Rotary hammer has been added the function of only drilling with high speed (function E), it not only has a tight structure, it also can be operated simply, because it has only one knob which can conveniently achieve functions switch.
- For improving the drilling performance for small holes in steel or wood, this patent is related to invent one multi-function double-speed rotary hammer with single function knob to realize 5 functions such as
- a. only chiseling;
- b. adjusting the working angel of flat chisel;
- c. drilling & chiseling
- d. only drilling with low speed;
- e. only drilling with high speed.
- Then present invention is characterized that the tool use only one function to realize 5 functions above, especially it has the function e( only drilling with high speed).
- The present invention shows how to realize the 5 functions in details:
- The tool mainly includes front parts and rear part, the front part is gear system, the rear part is motor system; the front part includes
gear housing 15,base 16,transmission shaft assembly 17,Impact shaft assembly 6,shaft lock assembly 44, the character is below: -
Transmission shaft assembly 17 mainly includestransmission shaft 24, wobble bearing 19, andclutch 21 which can gear or ungear withtransmission shaft 24, andspring 20 for clutch system. -
Impact shaft assembly 6 mainly includesimpact shaft 7,lock ring 8, low-speed gear 12 which in installed in theimpact shaft 7 and may driveimpact shaft 7, high-speed gear 9, back-forward spring 11,cylinder 14. - The tool also includes
gear assembly 26 which is fixed ontransmission shaft 24 and can move along withtransmission shaft 24;gear assembly 26 includes a low-speed pinion 25 which gears or ungears with low-speed gear 12 intransmission shaft assembly 17 and a high-speed pinion 29 which gears with a high-speed gear 9 intransmission shaft assembly 17. - The tool also includes one function-adjusting
board 34 for getting low-speed and one function-adjustingboard 35 for getting high-speed,spring 41 is installed in the function-adjustingboard 35 for getting high-speed; function-adjustingboard 34 for getting low-speed is connected withside pin speed gear 12 andclutch 21 respectively alongtransmission shaft 24. The function-adjustingboard 35 for getting high-speed connected withside pin 36 which may movegear assembly 26 along the direction of shaft. - The tool also has a
inner function knob 32 in thebase 16,outside function knob 33 is fixed withinner function knob 32 which is connected with one function-adjustingboard 34 for getting low-speed which can move alongtransmission shaft 24 for getting low speed and a function-adjustingboard 35 for getting high-speed which is fixed. - Usually,
gear assembly 26 is fixed ontransmission shaft 24 by aflat key 28, it only can move along withtransmission shaft 24; at the two ends ofgear assembly 26, it has low-speed pinion 25 and high-speed pinion 29; theslot 27 is in the middle area ofgear assembly 26. - Low-
speed gear 12 is fixed in theimpact shaft 7 by aflat key 13, it only can axially move along withimpact shaft 7. High-speed gear 9 is installed on theimpact shaft 7 bykey 10, it can only move along withimpact shaft 7 axially. Thelock ring 8 is used for stopping low-speed gear 12 and high-speed gear 9 to move axially; back-forward spring 11 is installed between low-speed gear 12 and high-speed gear 9 on theimpact shaft 7. - In the middle of
transmission shaft 24, there is aspline key 22 outside which may be geared withclutch 21;Lock ring 23 is fixed ontransmission shaft 24, it can used for fixingclutch 21 axially. - The function-adjusting
board 34 for getting low-speed is connected withside pin hole 50, there isteeth 49 at one side parallel with moving direction; the function-adjustingboard 35 for getting high-speed is connected withside pin 36 which is fixed in theslot 27 of thesliding gear assembly 26, there is ahole 52 on the function-adjustingboard 35 for getting high-speed, it has oneteeth 51 in at least one side ofhole 52 parallel with moving direction.Side pin board 34 for getting low-speed,side pin 37 is perpendicular with theside pin 38, andside pin 36 is perpendicular with function-adjustingboard 35 for getting high-speed. - The
spring 41 is installed on function-adjustingboard 35 for getting high-speed; thebended bar 40 is installed in theslot 39 of thebase 16. There arecylinder surface inner function knob 32, thecylinder surface 47 hasseveral teeth 45 which can gear or ungear withteeth 49 in function-adjustingboard 34 for getting low-speed. Thecylinder surface 48 hasseveral teeth 46 which can gear or ungear withteeth 51 in function-adjustingboard 35 for getting high-speed. - Generally, back-
forward spring 11 is used for the restoration back-forward spring 11 installed on the big gear is press spring,spring 20 installed on the clutch is press spring too, and thespring 41 installed on board is wiggly spring. - Function-adjusting
board 34 for getting low-speed is installed in theslot 30 which is in thebase 16 and parallel withtransmission shaft 24 axially, and can slide alongtransmission shaft 24 axially in the groove, function-adjustingboard 35 for getting high-speed is installed in the slot 31 which is in thebase 16 and parallel withtransmission shaft 24 axially, it can slide alongtransmission shaft 24 axially in the groove. - This tool can get 5-function mode by controlling the function-adjusting
board outside function knob 33. - According to
FIG 1 , when rotatingoutside function knob 33 toposition 1, function-adjustingboard 34 for getting low-speed causes that: - 1) Low-
speed gear 12 ungears with low-speed pinion 25; - 2) Low-
speed gear 12 gears with shaft lock assembly 44 (seeFIG 14 ); - 3) The
wobble bear 19 can rotate withtransmission shaft 24 when clutch 21 gears with spline key 22 (seeFIG 2 ) intransmission shaft 24; - Mode 2:
- Adjusting the working angel of flat chisel when rotating
outside function knob 33 toposition 2 shown inFIG 1 , the situation of function-adjustingboard 34 for getting low-speed, function-adjustingboard 35 for getting high-speed,inner function knob 32 will be shown inFIG 6 , at this position, low-speed gear 12 ungears with shaft lock assembly 44 (seeFIG 14 ), it achieves the function of adjusting the working angel of flat chisel. - Mode 3:
- Drilling & chiseling when rotating outside
function knob 33 toposition 3 shown inFIG 1 , the situation of function-adjustingboard 34 for getting low-speed, function-adjustingboard 35 for getting high-speed,inner function knob 32 will be shown inFIG 8 , at this position, low-speed gear 12 gears with low-speed pinion 25, it achieves the function of Drilling & chiseling. - Mode 4:
- Only drilling with low speed when rotating outside
function knob 33 toposition 4 shown inFIG 1 , the situation of function-adjustingboard 34 for getting low-speed, function-adjustingboard 35 for getting high-speed,inner function knob 32 will be shown inFIG 10 , at this position, the clutch21 ungears with spline key 22 intransmission shaft 24, it achieves the function of Only drilling with low speed. - Mode 5:
- Only drilling with high speed when rotating outside
function knob 33 toposition 5 shown inFIG 1 , the situation of function-adjustingboard 34 for getting low-speed, function-adjustingboard 35 for getting high-speed,inner function knob 32 will be shown inFIG 12 , at this position, low-speed gear 12 ungears with low-speed pinion 25, but high-speed gear 9 gears with high-speed pinion 29. - In general, the above functions are corresponded to the following situation:
- When anticlockwise rotating outside function knob 33 to position 1, function-adjusting board 34 for getting low-speed causes low-speed gear 12 ungears with low-speed pinion 25 which is included in gear assembly 26, and low-speed gear 12 gears with shaft lock assembly 44(see
FIG 14 ); when clockwise rotating outside function knob 33 to position 2, shaft lock assembly 44 ungears with low-speed gear 12; when clockwise rotating outside function knob 33 to position 3, under the force of inner function knob 32, function-adjusting board 34 for getting low-speed causes low-speed gear 12 to gear with low-speed pinion 25 which is included in gear assembly 26; when clockwise rotating outside function knob 33 to position 4, under the force of inner function knob 32, function-adjusting board 34 for getting low-speed causes clutch 21 to ungear with transmission shaft 24; when clockwise rotating outside function knob 33 to position 5, function-adjusting board 34 for getting low-speed doesn't move, under the force of inner function knob 32, function-adjusting board 35 for getting high-speed causes not only low-speed gear 12 to ungear with low-speed pinion 25 which is included in gear assembly 26, but also high-speed gear 9 to gear with the high-speed pinion 25 which included in gear assembly 26. - Those 5 functions are achieved by the way below:
- When rotating the
outside function knob 33 toposition 1 inFIG 1 , function-adjustingboard 34 for getting low-speed helps low-speed gear 12 to ungear with low-speed pinion 25 which is included ingear assembly 26. While Low-speed gear 12 gears withshaft lock assembly 44, it achieves the function of only chiseling; - When rotating the
outside function knob 33 toposition 2 inFIG 1 ,shaft lock assembly 44 ungears with low-speed gear 12, then it achieves the function of adjusting the working angel of flat chisel; - When rotating the
outside function knob 33 toposition 3 inFIG 1 , under the pushing ofinner function knob 32, function-adjustingboard 34 for getting low-speed helps low-speed gear 12 to gear with low-speed pinion 25 which is included ingear assembly 26, it achieves the function of drilling & chiseling; - When rotating the
outside function knob 33 toposition 4 inFIG 1 , under the pushing ofinner function knob 32, function-adjustingboard 34 for getting low-speed helps clutch 21 to ungear withtransmission shaft 24, it achieves the function of only drilling with low-speed; - When rotating the
outside function knob 33 toposition 5 inFIG 1 , function-adjustingboard 34 for getting low-speed doesn't work, under the pushing ofinner function knob 32, function-adjustingboard 35 for getting high-speed helps high-speed gear 9 to gear with high-speed pinion 29 which is included ingear assembly 26, it achieves the function of only drilling with high-speed. -
FIG 1 shows the sequence and almost positions of 5 functions, such as- Position 1: only chiseling;
- Position 2: adjusting the working angel of flat chisel;
- Position 3: drilling & chiseling
- Position 4: only drilling with low speed;
- Position 5: only drilling with high speed.
-
FIG 2 shows the situation of all components in gear housing whenoutside function knob 33 is set at the position 1 (only chiseling); -
FIG 3 is the A-A section view ofFIG 2 . -
FIG 4 shows the situation thatinner function knob 32 gears with function-adjustingboard 35 for getting high-speed and function-adjustingboard 34 for getting low-speed whenoutside function knob 33 is set at the position 1 (only chiseling). -
FIG 5 shows the situation of all components in gear housing whenoutside function knob 33 is set at the position 2 (adjusting the working angel of flat chisel); -
FIG 6 shows the situation thatinner function knob 32 gears with function-adjustingboard 35 for getting high-speed and function-adjustingboard 34 for getting low-speed whenoutside function knob 33 is set at the position 2 (adjusting the working angel of flat chisel); -
FIG 7 shows the situation of all components in gear housing whenoutside function knob 33 is set at the position 3 (drilling & chiseling); -
FIG 8 shows the situation thatinner function knob 32 gears with function-adjustingboard 35 for getting high-speed and function-adjustingboard 34 for getting low-speed whenoutside function knob 33 is set at the position 3 (drilling & chiseling); -
FIG 9 shows the situation of all components in gear housing whenoutside function knob 33 is set at the position 4 (only drilling with low speed); -
FIG 10 shows the situation thatinner function knob 32 gears with function-adjustingboard 35 for getting high-speed and function-adjustingboard 34 for getting low-speed whenoutside function knob 33 is set at the position 4 (only drilling with low speed); -
FIG 11 shows the situation of all components in gear housing whenoutside function knob 33 is set at the position 5 (only drilling with high speed); -
FIG 12 shows the situation thatinner function knob 32 gears with function-adjustingboard 35 for getting high-speed and function-adjustingboard 34 for getting low-speed whenoutside function knob 33 is set at the position 5 (only drilling with high speed); -
FIG 13 is one of 3D views of all components inside gear housing of the tool. -
FIG 14 is another 3D view of all components inside gear housing of the tool. -
FIG 15 is the 3D view ofinner function knob 32. -
FIG 16 shows the relationship amonginner function knob 32, function-adjustingboard 35 for getting high-speed, and function-adjustingboard 34 for getting low-speed. -
FIG 17 shows the relationship betweeninner function knob 32 and function-adjustingboard 35 for getting high-speed. - More description in details will be done below based on attached drawings and Figures.
- The invention relates to one multi-function double-speed rotary hammer which includes front part and rear part, the front part is gear system, the rear part is motor system.
- The front part includes
gear housing 15 and it's inside components, such asbase 16,transmission shaft assembly 17,Impact shaft assembly 6, low-speed gear 12, high-speed gear 9, back-forward spring 11, function-adjustingboard 34 for getting low-speed, function-adjustingboard 35 for getting high-speed,spring 41, gear assembly 26 (including low-speed pinion 25 and high-speed pinion 29) andshaft lock assembly 44. -
Transmission shaft assembly 17 mainly includestransmission shaft 24,pinion 18 fixed ontransmission shaft 24, wobble bearing 19, clutch 21 which can gear or ungear withtransmission shaft 24, andspring 20 for clutch system; the pinion in armature will gear with thepinion 18 and drivestransmission shaft 24. There is inner spline key in clutch 21; the spline key is used to gear with wobble bearing 19. -
Gear assembly 26 is installed withtransmission shaft 24 by aflat key 28, it only can move alongtransmission shaft 24 axially.Gear assembly 26 has low-speed pinion 25 and high-speed pinion 29. - There is a spline key 22 in the middle area of
transmission shaft 24;spline key 22 is used to make clutch 21 to gear withtransmission shaft 24. The clutch is fixed totransmission shaft 24 with oneLock ring 23.Spring 20 is used for reversing clutch 21 to gear withspline key 22 oftransmission shaft 24. -
Impact shaft assembly 6 mainly includesimpact shaft 7,lock ring 8, back-forward spring 11 for high-speed gear 9, low-speed gear 12 which in installed in theimpact shaft 7 bykey 13 and may driveimpact shaft 7, high-speed gear 9,cylinder 14. High-speed 9 is installed inimpact shaft 7 bykey 10, and it only can move along with theimpact shaft 7 axially.Lock ring 8 is used to position low-speed gear 12 and high-speed gear 9. Low-speed gear 12 and high-speed gear 9 are at the two ends of back-forward spring 11. - Function-adjusting
board 35 for getting high-speed is positioned in the slot 31 parallel with the axis oftransmission shaft 24. and it can move back and forward along the slot 31 inbase 16. Function-adjustingboard 34 for getting low-speed is positioned theslot 30 parallel with the axis oftransmission shaft 24, it also can move back and forward along theslot 30 inbase 16. - It is characterized that function-adjusting
board 34 for getting low-speed hasside pin 37 andside pin 38.Side pin 37 is used to move low-speed gear 12, andside pin 38 is used to move clutch 21. There is ahole 50 in function-adjustingboard 34 for getting low-speed, the side parallel with its moving direction in thehole 50 hasteeth 49; it is characterized that function-adjustingboard 35 for getting high-speed hasside pin 36 which is inserted into theslot 27 ofgear assembly 26. There is ahole 52 in function-adjustingboard 35 for getting high-speed, the middle of the side parallel with its moving direction in thehole 52 hasteeth 51. - According to
FIG 7 andFIG 14 , thespring 41 is installed in the function-adjustingboard 35 for getting high-speed. Thebended bar 40 forspring 41 is installed in theslot 39 ofbase 16. Thespring 41 can move the function-adjustingboard 35 for getting high-speed and haveteeth 51 in function-adjustingboard 35 for getting high-speed andteeth 45 ininner function knob 32 to gear with each other. -
Inner function knob 32 is positioned in one hole ofbase 16, it is characterized that there arecylinder surface inner function knob 32. There areseveral teeth 45 incylinder surface 47 andseveral teeth 46 incylinder surface 48.Teeth 45 can gear or ungear withteeth 49 in function-adjustingboard 34 for getting low-speed.Teeth 46 can gear or ungear withteeth 51 in function-adjustingboard 35 for getting high speed.Outside function knob 33 is connected withinner function knob 32. Whenoutside function knob 33 is rotated, the function-adjustingboard transmission shaft 24 or keep still (seeFIG 15, FIG 16, FIG 17 ). - The ways below show how to achieve 5 functions in details.
- Remark: the original position is from
position 1; we will rotateoutside function knob 33 from it to the 5th position. - When
outside function knob 33 is at theposition 1 shown inFIG 1 ,teeth 51 of function-adjustingboard 35 for getting high-speed ungears withteeth 46 ofinner function knob 32; high-speed pinion 29 ungears with high-speed gear 9 by the force from function-adjustingboard 35 for getting high-speed. Theteeth 49 of function-adjustingboard 34 for getting low-speed gears withteeth 45 ofinner function knob 32. Under the supporting byside pin 37 in function-adjustingboard 34 for getting low-speed gear 12 ungears with low-speed pinion 25 ofgear assembly 26, low-speed gear 12 gears withshaft lock assembly 44, theimpact shaft 6 can not be rotated in this situation. Under the help of back-forward spring 20, clutch 21 gears withspline key 22 oftransmission shaft 24. And the wobble bearing can rotate axially withtransmission shaft 24. It helps to achieve the function of "only chiseling". - When
outside function knob 33 is rotated fromposition 1 to theposition 2 shown inFIG 2 ,teeth 51 of function-adjustingboard 35 for getting high-speed still ungears withteeth 46 ofinner function knob 32, function-adjustingboard 35 for getting high-speed doesn't move. Function-adjustingboard 34 for getting low-speed is pushed forward by force fromteeth 45 ofinner function knob 32, low-speed gear 12 ungears withshaft lock assembly 44 under the help of back-forward spring 11, while low-speed gear 12 still doesn't gear with low-speed pinion 25, the other components don't move or change their position, then it achieves the function of adjusting the working angel of flat chisel. (seeFIG 5 ,6 ) - When rotating outside
function knob 33 fromposition 2 to theposition 3 shown inFIG 2 ,teeth 51 of function-adjustingboard 35 for getting high-speed still doesn't gear with theteeth 46 ofinner function knob 32, function-adjustingboard 35 for getting high-speed doesn't move. - Function-adjusting
board 34 for getting low-speed is pushed forward by force fromteeth 45 ofinner function knob 32, low-speed gear 12 gears with low-speed pinion 25 under the help of back-forward spring 11, the other components don't move or change their position. Now it achieves the function of Drilling & chiseling. (seeFIG 7 ,8 ) - When rotating outside
function knob 33 fromposition 3 to theposition 4 shown inFIG 2 ,teeth 51 of function-adjustingboard 35 for getting high-speed still doesn't gear with theteeth 46 ofinner function knob 32, function-adjustingboard 35 for getting high-speed doesn't move. Function-adjustingboard 34 for getting low-speed is pushed forward by the force fromteeth 45 ofinner function knob 32,side pin 38 of function-adjustingboard 34 for getting low-speed presses down clutch 21, and this causes clutch 21 to ungear with spline key 22 intransmission shaft 24, wobble bearing 19 doesn't work, the back-forward spring 8 not only stops low-speed gear 12 to slide axially, but also helps low-speed gear 12 to gear with low-speed pinion 25, the other components don't move, then it achieves the function of Only drilling with low speed. (seeFIG 9 ,10 ) - When rotation outside
function knob 33 fromposition 4 to theposition 5 shown inFIG 2 ,teeth 49 of function-adjustingboard 34 for getting low-speed ungears withteeth 45 ofinner function knob 32, function-adjustingboard 34 for getting low-speed doesn't move.Teeth 51 of function-adjustingboard 35 for getting high-speed gears withteeth 45 ofinner function knob 32 by the force of thespring 41 installed on the function-adjustingboard 35, function-adjustingboard 35 for getting high-speed moves under the force frominner function knob 32, this causes not only low-speed gear 12 to ungear with low-speed pinion 25 included ingear assembly 26, but also high-speed gear 9 to gear with the high-speed pinion 25 which is included ingear assembly 26, the other components don't move, now it achieves the function of only drilling with high speed. (seeFIG 11 ,12 ). -
- 6
- impact shaft assembly
- 7
- impact shaft
- 8
- lock ring
- 9
- high-speed gear
- 10
- the key
- 11
- back-forward spring
- 12
- low-speed gear
- 13
- key
- 14
- cylinder
- 15
- gear housing
- 16
- base
- 17
- transmission shaft assembly
- 18
- pinion
- 19
- wobble bearing
- 20
- spring
- 21
- clutch
- 22
- spline key
- 23
- lock ring
- 24
- transmission shaft
- 25
- low-speed pinion
- 26
- gear assembly
- 27
- the slot
- 28
- the flat key
- 29
- high-speed pinion
- 30
- the slot
- 31
- the slot
- 32
- inner function knob
- 33
- outside function knob
- 34
- function-adjusting
board 34 for getting low-speed - 35
- function-adjusting
board 35 for getting high-speed - 36
- side pin
- 37
- side pin
- 38
- side pin
- 39
- the slot
- 40
- the bended bar
- 41
- spring
- 44
- shaft lock assembly
- 45
- teeth
- 46
- teeth
- 47
- cylinder
- 48
- cylinder
- 49
- teeth
- 50
- hole
- 51
- teeth
- 52
- hole
Claims (15)
- A tool such as a multi-function double-speed rotary hammer, having 5 functions of- only chiseling,- adjusting the working angel of flat chisel,- drilling & chiseling,- only drilling with low-speed, and- the function of only drilling with high-speed,whereby all 5 functions are achieved by using only one function knob.
- The tool according to claim 1, including front parts which is gear system, rear parts which is engine system, whereby the front parts at least include a gear housing 15, a base 16, a transmission shaft assembly 17, an impact shaft assembly 6, and a shaft lock assembly 44 characterized in that:- the transmission shaft assembly 17, mainly includes a transmission shaft 24 connected with an engine system, a wobble bearing 19, a clutch 21, which is installed on the transmission shaft 24 and can slide axially for gearing and ungearing with the transmission shaft 24, and a spring 20 which is installed on the clutch 21;- the impact shaft assembly 6 mainly includes an impact shaft 7, a lock ring 8, a low-speed gear 12 and a high-speed gear 9 which are installed on the impact shaft 7 and can slide axially for driving the impact shaft 7, a back-forward spring 11 which is installed on the gear and a piston 14 which is used for driving the drill bit inserted into impact shaft 7 to work axially;- the front parts also include gear assembly 26 which is installed on the transmission shaft 24 and can slide axially, whereby the gear assembly 26 includes a low-speed pinion 25 which can gear or ungear with the low-speed gear 12 and a high-speed pinion 29 which can gear or ungear with the high-speed gear 9;- the front parts include a function-adjusting board 34 for getting low-speed and a function-adjusting board 35 for getting high-speed which can slide along the transmission shaft 24 axially, whereby a spring 41 is installed on function-adjusting board 35 for getting high-speed, the function-adjusting board 34 for getting low-speed, has a side pin 37 and 38 used for respectively pulling low-speed gear 12 and clutch 21 axially and the function-adjusting board 35 for getting-high-speed, has a side pin 36 used for pulling gear assembly 26 axially; and- the front parts, also include an inner function knob 32, which is fixed in a hole on the base 16, whereby an outside function 33 is installed on the inner function knob 32 which is connected with function-adjusting board 34 for getting low-speed and function-adjusting board 35 for getting high-speed, and they can slide along transmission shaft 24 axially or keep still.
- The tool according to claim 1 and 2, wherein said 5 functions of only chiseling, Adjusting the working angel of flat chisel, Drilling & Chiseling, Only drilling with low-speed and Only drilling with high-speed are achieved:- when rotating the outside function knob 33 to a position 1, the function-adjusting board 34 for getting low-speed helps low-speed gear 12 to ungear with low-speed pinion 25 which is included in gear assembly 26, while low-speed gear 12 gears with shaft lock assembly 44, thereby achieving the function of only chiseling;- when rotating the outside function knob 33 to a position 2, shaft lock assembly 44 ungears with low-speed gear 12, thereby achieving the function of adjusting the working angel of flat chisel;- when rotating the outside function knob 33 to a position 3, under the pushing of inner function knob 32, the function-adjusting board 34 for getting low-speed helps low-speed gear 12 to gear with low-speed pinion 25 which is included in gear assembly 26, thereby achieving the function of drilling & chiseling;- when rotating the outside function knob 33 to a position 4, under the pushing of inner function knob 32, the function-adjusting board 34 for getting low-speed helps clutch 21 to ungear with transmission shaft 24, thereby achieving the function of only drilling with low-speed;- when rotating the outside function knob 33 to a position 5, the function-adjusting board 34 for getting low-speed is not working and under the pushing of inner function knob 32, the function-adjusting board 35 for getting high-speed helps high-speed gear 9 to gear with high-speed pinion 29 which is included in gear assembly 26, thereby achieving the function of only drilling with high-speed.
- The tool according to claim 2, characterized in that the gear assembly 26 is installed and slide along on the transmission shaft 24, whereby are connected by a key 28.
- The tool according to claim 2, characterized in that the gear assembly 26 embodies the low-speed pinion 25 and the high-speed pinion 29, and there is a slot 27 in the middle area of gear assembly 26.
- The tool according to claim 2, characterized in that the low-speed gear 12 is installed in the impact shaft 7 by a flat key 13, such that it only can axially move along with impact shaft 7, the high-speed gear 9 is installed on the impact shaft 7 by the key 10, such that it can only move along with impact shaft 7 axially, and a lock ring 8 is provided which is used for positioning low-speed gear 12 and high-speed gear 9 axially, whereby a back-forward spring 11 is installed between low-speed gear 12 and high-speed gear 9 on the impact shaft 7.
- The tool according to claim 2, characterized in that there is a spline key 22 in the middle area of the transmission shaft 24, the spline key 22 is used to make clutch 21 to gear with transmission shaft 24, whereby a lock ring 23 for positioning clutch 21 axially is covered on the transmission shaft 24.
- The tool according to claim 2, characterized in that there is a hole 50 on the function-adjusting board 34 for getting low-speed, whereby teeth 49 are arranged on one side of the hole 50.
- The tool according to claim 2, characterized in that the function-adjusting board 35 for getting high-speed has side pin 36 which is inserted into the slot 27 of the gear assembly 26, whereby there is a hole 52 in function-adjusting board 35 for getting high-speed and teeth 51 are arranged in the hole 52 in the middle of the side which is parallel with its moving direction.
- The tool according to claim 2, characterized in that the spring 41 is installed in the function-adjusting board 35 for getting high-speed, whereby a bended bar 40 for the spring 41 is installed in the slot 39 of base 16 and/or whereby the spring 41 works as a torsion spring.
- The tool according to claim 2, characterized in that the side pins 37 and 38 are perpendicular to the function-adjusting board 34 for getting low-speed and side pin 37 is perpendicular to the side pin 38 and/or side pin 36 is perpendicular to the function-adjusting board 35 for getting high-speed.
- The tool according to claim 2, characterized in that there are cylinder surfaces 47 and 48 on inner function knob 32, whereby on cylinder surface 47, there are several teeth 45 which can gear and ungear with the teeth 49 of function-adjusting board 34 for getting low-speed and on cylinder surface 48, there are several teeth 46 which can gear and ungear with the teeth 51 of the function-adjusting board 35 for getting high-speed.
- The tool according to claim 2, characterized in that a back-forward spring 11 is installed on the gear or a spring 20 is installed on the clutch 21, whereby the back-forward spring 11 or the spring 20 work as a pressure spring.
- The tool according to claim 2, characterized in that function-adjusting board 34 for getting low-speed is installed into the slot 30 of the base 16, the slot 30 is axially parallel with transmission shaft 24, and the function-adjusting board 34 for getting low-speed can axially slide along transmission shaft 24 in the slot 30.
- The tool according to claim 2, characterized in that the function-adjusting board 35 for getting high-speed is installed into slot 31 of the base 16, the slot 31 is axially parallel with transmission shaft 24, and the function-adjusting board 35 for getting high-speed can axially slide along transmission shaft 24 in the slot 31.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB2007101344976A CN100513090C (en) | 2007-10-30 | 2007-10-30 | Dual-speed multifunctional electric hammer |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2055440A1 true EP2055440A1 (en) | 2009-05-06 |
EP2055440B1 EP2055440B1 (en) | 2012-06-27 |
Family
ID=39305509
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20080167598 Expired - Fee Related EP2055440B1 (en) | 2007-10-30 | 2008-10-27 | Multi-function double-speed rotary hammer |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2055440B1 (en) |
CN (1) | CN100513090C (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120205132A1 (en) * | 2010-01-21 | 2012-08-16 | Wenjiang Wang | Light single-button multifunctional electric hammer |
WO2015035828A1 (en) * | 2013-09-13 | 2015-03-19 | 智龙(香港)有限公司 | Adapter for multifunctional electric drill |
JPWO2017002517A1 (en) * | 2015-06-30 | 2018-03-22 | 日立工機株式会社 | Impact tool |
EP3338955A1 (en) * | 2016-12-13 | 2018-06-27 | Robert Bosch GmbH | Drilling and/or chipping hammer |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN201618874U (en) * | 2010-01-21 | 2010-11-03 | 浙江海王电器有限公司 | High-low double-speed rotating and impacting structure of electric power tool |
CN102649266B (en) * | 2012-04-16 | 2015-04-08 | 制尚电器(浙江)有限公司 | Multifunctional double-speed electric hammer |
DE102012212417B4 (en) * | 2012-07-16 | 2017-06-08 | Robert Bosch Gmbh | switching unit |
CN102765080B (en) * | 2012-07-18 | 2014-12-24 | 宁波汉浦工具有限公司 | Double-speed electric hammer |
CN104552183B (en) * | 2013-10-10 | 2017-06-27 | 苏州宝时得电动工具有限公司 | Hand held electric tool |
CN106826696A (en) * | 2017-02-28 | 2017-06-13 | 东莞产权交易中心 | A kind of improved Dustless churn drilling |
CN109262549B (en) * | 2017-07-17 | 2021-04-06 | 博世电动工具(中国)有限公司 | Electric tool |
CN113165152A (en) * | 2018-11-29 | 2021-07-23 | 工机控股株式会社 | Striking working machine |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9307523U1 (en) * | 1993-05-18 | 1994-09-29 | Bosch Gmbh Robert | Power tool, especially impact drill or hammer drill |
US20050224242A1 (en) * | 2004-04-08 | 2005-10-13 | Rory Britz | Hammer drill |
WO2008000545A1 (en) | 2006-06-27 | 2008-01-03 | Robert Bosch Gmbh | Electric hand tool |
WO2008080658A1 (en) | 2006-12-27 | 2008-07-10 | Robert Bosch Gmbh | Hand held power tool |
-
2007
- 2007-10-30 CN CNB2007101344976A patent/CN100513090C/en active Active
-
2008
- 2008-10-27 EP EP20080167598 patent/EP2055440B1/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE9307523U1 (en) * | 1993-05-18 | 1994-09-29 | Bosch Gmbh Robert | Power tool, especially impact drill or hammer drill |
US20050224242A1 (en) * | 2004-04-08 | 2005-10-13 | Rory Britz | Hammer drill |
WO2008000545A1 (en) | 2006-06-27 | 2008-01-03 | Robert Bosch Gmbh | Electric hand tool |
WO2008080658A1 (en) | 2006-12-27 | 2008-07-10 | Robert Bosch Gmbh | Hand held power tool |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20120205132A1 (en) * | 2010-01-21 | 2012-08-16 | Wenjiang Wang | Light single-button multifunctional electric hammer |
US9227312B2 (en) * | 2010-01-21 | 2016-01-05 | Zhejiang Haiwang Electric Machine Co., Ltd. | Light single-button multifunctional electric hammer |
EP2527096A4 (en) * | 2010-01-21 | 2016-02-24 | Zhejiang Haiwang Electric Machine Co Ltd | Light single button multi-function electric hammer |
WO2015035828A1 (en) * | 2013-09-13 | 2015-03-19 | 智龙(香港)有限公司 | Adapter for multifunctional electric drill |
JPWO2017002517A1 (en) * | 2015-06-30 | 2018-03-22 | 日立工機株式会社 | Impact tool |
EP3338955A1 (en) * | 2016-12-13 | 2018-06-27 | Robert Bosch GmbH | Drilling and/or chipping hammer |
Also Published As
Publication number | Publication date |
---|---|
CN100513090C (en) | 2009-07-15 |
CN101157214A (en) | 2008-04-09 |
EP2055440B1 (en) | 2012-06-27 |
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