CN105437162B - Torque output tool and transmission mechanism - Google Patents
Torque output tool and transmission mechanism Download PDFInfo
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- CN105437162B CN105437162B CN201410308026.2A CN201410308026A CN105437162B CN 105437162 B CN105437162 B CN 105437162B CN 201410308026 A CN201410308026 A CN 201410308026A CN 105437162 B CN105437162 B CN 105437162B
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- transmission mechanism
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- impact block
- output shaft
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Abstract
The invention discloses a transmission mechanism, comprising: the device comprises an inner shell, an output shaft, a front stopper, a front impact block, a rear stopper, a rear impact block and a biasing element; the output shaft and the inner shell form sliding connection in the axial direction; the front stopper and the output shaft form fixed connection in the axial direction and form rotary connection in the circumferential direction, and the front stopper and the inner shell are fixed in position in the circumferential direction; the front impact block and the output shaft form fixed connection in the axial direction and the circumferential direction, and front impact teeth are formed on the front impact block; the back strikes piece and interior casing and all fixes in position on axial and week, and the back strikes the piece and includes: a body portion and an impact projection, the impact projection forming a rear impact tooth; the backstop includes: the rear blocking piece and the rear impact block form rotating connection and are limited in the axial direction by the step structure formed by the impact protruding part and the body part. The transmission mechanism of the invention can be freely switched between a drilling mode and a hammering mode.
Description
Technical field
The present invention relates to a kind of torque output instrument, and in particular to a kind of torque output instrument for allowing hand over mode of operation
And transmission mechanism.
Background technology
On the one hand people wish that electric tool can continuously work during using existing electric tool, will
Electric tool is used as electric drill, on the other hand wishes the impact work that electric tool can be interrupted again, electric tool is made
Used for hammer drill.And in the course of the work, staff, which is frequently necessary to ceaselessly change, uses electric drill or hammer drill, so, then
Need frequently to change electric tool, not only cause operating efficiency to reduce, but also have a strong impact on the service life of electric tool.
The content of the invention
To solve the deficiencies in the prior art, pattern can be cut in drill mode and hammer it is an object of the invention to provide one kind
Between free switching transmission mechanism.
In order to realize above-mentioned target, the present invention is adopted the following technical scheme that：
A kind of transmission mechanism, including：Inner housing, the output shaft that can be pivoted by axle of first axle, transmission mechanism also include：
One front catch member, preceding impact block, backup member, impact block, a biased element after one；Output shaft exists with inner housing
Constitute and be slidably connected on axial direction；Front catch member, preceding impact block, backup member, rear impact block are sleeved on output shaft；Front catch member with it is defeated
Shaft is constituted in the axial direction to be fixedly connected, constitutes rotation connection in the circumferential, and front catch member with inner housing fix in the circumferential by position；
Preceding impact block is constituted on axial and circumferential with output shaft and is fixedly connected, and preceding impact block is formed with preceding impact teeth；Impact block afterwards
Equal position is fixed on axial and circumferential with inner housing, and rear impact block includes：Body and the impact being formed on front side of body
Protuberance, impact protuberance forms rear impact teeth；Backup member includes：Baffle ring and the backstop leg of rear baffle ring is extended radially afterwards,
Baffle ring is sleeved on the periphery of impact protuberance afterwards, and backup member is constituted to rotate with rear impact block and is connected and convex by impacting in the axial direction
Go out portion and form the spacing of ledge structure with body.
Further, front catch member includes：One preceding baffle ring, radially projecting connecting portion in preceding baffle ring, axially rearward
Protrude from connecting portion and the backstop protuberance of backstop leg can be directed at；Connecting portion is at least provided with preceding two different weeks of baffle ring
To at position.
Further, transmission mechanism also includes：One bushing, bushing includes：Bush body and lining is protruded from the circumferential
Cover the location division of body；Bush body, which is formed with, can block the bushing bayonet socket of connecting portion.
Further, rear impact block also includes：Extend radially the extension of body；Inner housing, which at least has, to be sleeved on
Preceding suit portion on the outside of bushing, preceding suit portion at least provided with can accommodate location division suit groove and can be to connecting portion and extension
The spacing breach that circumferential position is limited.
Further, bearing part is provided between bushing and output shaft.
Further, biased element is helical spring of the two ends respectively against front catch member and backup member.
Further, transmission mechanism also includes：The operating assembly that can rotate backup member.
Further, at least one backstop leg in backup member is formed with the department of assembly that can be assembled with operating assembly.
Further, operating assembly at least includes an operation ring being connected with inner housing rotation.
The present invention also proposes a kind of torque output instrument, and it includes：Shell body, motor and above-described driver
Structure, wherein motor drive output shaft.
The present invention is advantageous in that：Effect in drive mechanism by rear shelves part to preceding shelves part so that preceding impact block
Contact or remote rear impact block, so that transmission mechanism can cut free switching between pattern and drill mode in hammer, are solved
Existing electric tool only has a kind of mode of operation, the problem of inconvenient for use.
Brief description of the drawings
Fig. 1 show the structural representation of the transmission mechanism of the present invention；
Fig. 2 show the exploded perspective view of the drive mechanism in Fig. 1；
Fig. 3 show the structural representation of the inner housing in Fig. 2；
Fig. 4 show the structural representation of the front catch member in Fig. 2；
Fig. 5 show the structural representation of the bushing in Fig. 2；
Fig. 6 show the structural representation of the preceding impact block in Fig. 2；
Fig. 7 show the structural representation of the rear impact block in Fig. 2；
Fig. 8 show the structural representation of the backup member in Fig. 2；
The backup member that Fig. 9 is shown in Fig. 2 is sheathed on the structural scheme of mechanism on rear impact block；
Figure 10 show the torque output device of the transmission mechanism with the present invention.
Embodiment
Make specific introduce to the present invention below in conjunction with the drawings and specific embodiments.
The present invention proposes a kind of transmission mechanism, and the transmission mechanism can be used in electric tool, can cause electric tool
Switch between different mode of operations, such as in impact drill, the drive mechanism can to cause the impact drill in drill mode
And hammer cuts free switching between pattern.
Fig. 1 show the structural representation of the transmission mechanism of the present invention；Fig. 2 show the blast of the drive mechanism in Fig. 1
Schematic diagram.Please with reference to Fig. 1 and Fig. 2, transmission mechanism 100 of the invention includes：Inner housing 110, output shaft 120, front catch member
130th, bushing 140, bearing part 150, preceding impact block 160, backup member 170, rear impact block 180, wherein biased element 190, inner casing
The shell for the transmission mechanism 100 that body 110 is invented as you, for housing miscellaneous part, output shaft 120 has the through itself
One axis Y, and can be pivoted by axle of first axle Y.Technical scheme is got across for convenience below, done
Go out to be defined as below：Define output shaft 120 first axle Y where direction and be axle parallel to first axle Y direction
To it is circumferential around axially direction, also definition is axially toward output shaft 120 radially to be perpendicular to axially direction
Before output end 121 is, after the other end towards output shaft 120 is, the essentiality content of the present invention without limitation defined above.
Fig. 3 show the structural representation of the inner housing in Fig. 2.Please with reference to Fig. 1 to Fig. 3, inner housing 110 includes one
Individual preceding suit portion 111, preceding suit portion 111 is sleeved on the outside of bushing 140, for house front catch member 130, preceding impact block 160, after
Suit groove 111a and spacing breach 111b is additionally provided with block piece 170 and rear impact block 180, preceding suit portion 111, groove is set with
The groove that 111a extends radially outward for the side wall in preceding suit portion 111, suit groove 111a at least includes two circumferential positions
Different grooves, it is used for front catch member 130 and bushing 140 is circumferentially fixed in preceding suit portion 111；Spacing breach 111b is opened
On the side wall in preceding suit portion 111, it is axially extended, for rear impact block 180 is circumferentially fixed in preceding suit portion 111
In.And spacing breach 111b is distributed in the different circumferential positions of preceding suit portion 111 side wall from suit groove 111a.
Output shaft 120 is used for output torque, and it includes an output end 121, and output end 121 is used as transmission mechanism of the invention
100 final torsion output block, through the center of inner housing 110, constitutes and is slidably connected in the axial direction with inner housing 110, and
The relative inner housing 110 of energy is circumferentially rotated, and front catch member 130, preceding impact block 160, backup member 170, rear impact block 180 are sleeved on
On output shaft 120.
Fig. 4 show the structural representation of the front catch member in Fig. 2.Please with reference to Fig. 2 and Fig. 4, front catch member 130 is sheathed on
On output shaft 120, and constitute and be fixedly connected in the axial direction with output shaft 120, and constitute the company of rotation with output shaft 120 in the circumferential
Connect, so that front catch member 130 can be with the synchronizing moving in the axial direction of output shaft 120, and output shaft 120 can be relative in the circumferential
Front catch member 130 is independent to be pivoted.In the present embodiment, front catch member 130 includes：Preceding baffle ring 131, connecting portion 132 and backstop protrusion
Portion 133, preceding baffle ring 131 is sheathed on output shaft 120；Connecting portion 132 be along preceding baffle ring 131 extend radially outwardly it is convex
Rise, in the present embodiment, connecting portion 132 can be correspondingly embedded in inner casing at least provided with two circumferential positions of preceding baffle ring 131
In suit groove 111a on the side wall of preceding suit portion 111 of body 110, so that front catch member 130 can be circumferentially fixed in inner casing
In body 110；Backstop protuberance 133 protrudes axially rearward from connecting portion 132, and backstop protuberance 133 can coordinate with backup member 170
So that front catch member 130 can not be moved rearwards by the axial direction.Circumferential position of the front catch member 130 with respect to inner housing 110 in the present invention
It is fixed, and also radially outward from there is connecting portion 132 in front catch member 130, it is simple in construction, and connecting portion 132 is alternatively arranged as front catch member
130 support component so that requirement of the front catch member 130 to self-strength is than relatively low so that front catch member 130 can make it is general
The powdered metal parts of logical technological forming.
Fig. 5 show the structural representation of the bushing in Fig. 2.Please with reference to Fig. 2 and Fig. 5, bushing 140 is sheathed on output
On axle 120, bearing part 150 is located between bushing 140 and output shaft 120.Bushing 140 includes：Bush body 141 and location division
142, a bushing bayonet socket 143 is formed in bush body 141, and bushing bayonet socket 143 can block the connecting portion 132 in front catch member 130,
So that bushing 140 is fixed with respect to front catch member 130 in the circumferential；Location division 142 is radially outward to prolong along bush body 141
The projection stretched, and location division 142 protrudes from bush body 141 in the circumferential, location division 142 can be embedded in before inner housing 110
In suit groove 111a on the side wall of suit portion 111, so that bushing 140 is fixed in inner housing 110 in the circumferential.
Fig. 6 show the structural representation of the preceding impact block in Fig. 2；The structure for the rear impact block that Fig. 7 is shown in Fig. 2 is shown
It is intended to.Please with reference to Fig. 2, Fig. 6 and Fig. 7, preceding impact block 160 constitutes fixed connect with output shaft 120 on axial and circumferential
Connect, so that preceding impact block 160 can be as the pivot in unison of output shaft 120 be again as output shaft 120 is moved in the axial direction, in this reality
Apply in example, be also formed with preceding impact block 160 for realizing that the hammer of transmission mechanism 100 cuts the preceding impact teeth 161 of pattern.After impact
Block 180 includes body 181, extension 182 and impact protuberance 183, and body 181 is arranged in inner housing 110, so that
So that rear impact block 180 is with respect to the axial restraint of inner housing 110；Extension 182 extends radially body 181, and can be embedded in
In suit groove 111a and spacing breach 111b on the side wall of preceding suit portion 111 of inner housing 110, so that rear impact block
The 180 relative circumferential positions of inner housing 110 are fixed；Impact protuberance 183 is formed at the front side of body 181, impacts protuberance 183
On yet forms both the rear impact teeth 184 corresponding with the preceding impact teeth 161 on preceding impact block 160 so that rear impact block 180 and before
Impact block 160 is allowd by the percussion of rear impact teeth 184 and preceding impact teeth 161 at transmission mechanism 100 of the invention
Pattern is cut in hammer.
Fig. 8 show the structural representation of the backup member in Fig. 2；The backup member that Fig. 9 is shown in Fig. 2 is impacted after being sheathed on
Structural scheme of mechanism on block.Please with reference to Fig. 2, Fig. 8 and Fig. 9, backup member 170 is arranged at preceding impact block 160 and rear impact block
Between 180, it includes：Baffle ring 171 and backstop leg 172 afterwards, rear baffle ring 171 are rotatably sleeved on impact protuberance 183
Periphery so that backup member 170 impact block 180 can be rotated after in the circumferential, and in the axial direction, because rear baffle ring 171 by
The ledge structure formed afterwards between impact protuberance 183 and the body 181 of impact block 180 it is spacing so that backup member 170 exists
Relatively rear impact block 180 is fixed on axial direction.Backstop leg 172 extends radially out rear baffle ring 171, and in the circumferential with front catch member
The position of backstop protuberance 133 on 130 aligns and can prop up backstop protuberance 133, and backstop leg 172 also extends through inner housing
Suit groove 111a on the 110 side wall of preceding suit portion 111, and the circumferential lengths of backstop leg 172 are less than backstop protuberance 133
Circumferential lengths so that suit groove 111a restriction effect under, backstop protuberance 133 with respect to inner housing 110 it is circumferentially fixed,
And backstop leg 172 can be moved in suit groove 111a circumferential lengths, so that front catch member 130 is with respect to inner housing 110
Circumferentially fixed, backup member 170 can be circumferentially rotated with respect to inner housing 110.So, when backup member 170 is relative under external force
When inner housing 110 circumferentially rotates to backstop leg 172 the backstop protuberance 133 for propping up front catch member 130, front catch member 130 is in axial direction
On can not then be moved rearwards by so that output shaft 120 and the preceding impact block 160 being fixed on output shaft 120 can not be moved back by
It is dynamic, thus preceding impact block 160 do not reach rear impact block 180 and can not mating reaction, and then cause transmission now of the invention
Mechanism 100 is in drill mode；And when backup member 170 is circumferentially rotated to backstop leg with respect to inner housing 110 under external force
172 when not propping up the backstop protuberance 133 of front catch member 130, and front catch member 130 can be moved rearwards by the axial direction so that output shaft
120 and the preceding impact block 160 that is fixed on output shaft 120 be also moved rearwards by so that preceding impact block 160 can touch backlash
Hit block 180 and constitute cooperation, and then cause transmission mechanism 100 now of the invention to cut pattern in hammer.In the present invention, backup member
170 are arranged on rear impact block 180, have rear impact block 180 as support, self-strength requires low, so, backup member 170 can
To make thin wall stamping part.
The bias of biased element 190 is set between front catch member 130 and backup member 170 so that front catch member 130 and output shaft
120 move axially forward in the lump, in the present embodiment, biased element 190 be two ends respectively against front catch member 130 and after
The helical spring of block piece 170.
In the present embodiment, transmission mechanism 100 also includes an operating assembly (figure is not marked), and operating assembly can make backup member
170 rotate relative to inner housing 110 in the circumferential.Specifically, also forming a department of assembly on the backstop leg 172 of backup member 170
172a, operating assembly includes operation ring 211 and operating parts 212, and operation ring 211 is rotated with inner housing 110 and is connected, and operates ring
A structure coordinated with department of assembly 172a is additionally provided with 211 so that when operating ring 211 to be circumferentially rotated with respect to inner housing 110,
The backstop leg 172 of backup member 170 is driven to circumferentially rotate in the lump；Operating parts 212 is used for for user's operation, when user is in operating parts
When applying external force on 212, operating parts 212 can drive operation ring 211 to be rotated relative to inner housing 110.
Figure 10 show the torque output device of the transmission mechanism with the present invention.Please with reference to Fig. 1 and Fig. 9, this hair
Bright also to propose a kind of torque output instrument 300, such as torque output instrument 300 can be impact drill, torque output instrument 300
Including shell body 310, motor（Figure is not marked）And the transmission mechanism 100 in the present invention, motor is in drive transmission device 100
Output shaft 120, by the pattern for switching the drive mechanism so that torque output instrument 300 of the invention can be in drilling mould
Formula and hammer cut free switching between pattern.
The basic principles, principal features and advantages of the present invention have been shown and described above.The technical staff of the industry should
Understand, the invention is not limited in any way for above-described embodiment, it is all to be obtained by the way of equivalent substitution or equivalent transformation
Technical scheme, all falls within protection scope of the present invention.
Claims (10)
1. a kind of transmission mechanism, including：Inner housing, the output shaft that can be pivoted by axle of first axle, it is characterised in that the biography
Motivation structure also includes：One front catch member, preceding impact block, backup member, impact block, a biased element after one；Institute
State output shaft and constituted in the axial direction with the inner housing and is slidably connected；The front catch member, preceding impact block, backup member, rear impact block
It is sleeved on the output shaft；The front catch member is constituted in the axial direction with the output shaft to be fixedly connected, constitutes in the circumferential
Connection is rotated, the front catch member with the inner housing fix in the circumferential by position；The preceding impact block is with the output shaft in axle
To with circumference constitute be fixedly connected, the preceding impact block is formed with preceding impact teeth；The rear impact block and the inner housing
Equal position is fixed on axial and circumferential, and the rear impact block includes：Body and the impact being formed on front side of the body
Protuberance, the impact protuberance forms rear impact teeth；The backup member includes：Baffle ring and extend radially the rear baffle ring afterwards
Backstop leg, the rear baffle ring is sleeved on the periphery of the impact protuberance, and the backup member is constituted with the rear impact block
Rotate connection and formed the spacing of ledge structure by the impact protuberance and the body in the axial direction.
2. transmission mechanism according to claim 1, it is characterised in that the front catch member includes：One preceding baffle ring, radially
The connecting portion of the preceding baffle ring is protruded from, the connecting portion is protruded from axially rearward and the backstop of the backstop leg can be directed at
Protuberance；The connecting portion is at least provided with described preceding two different circumferential positions of baffle ring.
3. transmission mechanism according to claim 2, it is characterised in that the transmission mechanism also includes：One bushing, it is described
Bushing includes：Bush body and the location division for protruding from the bush body in the circumferential；The bush body, which is formed with, to block
State the bushing bayonet socket of connecting portion in residence.
4. transmission mechanism according to claim 3, it is characterised in that the rear impact block also includes：Extend radially institute
State the extension of body；The inner housing at least has the preceding suit portion being sleeved on the outside of the bushing, the preceding suit portion
The suit groove of the location division and the connecting portion and the extension circumferential position can be limited at least provided with that can accommodate
The spacing breach of system.
5. transmission mechanism according to claim 3, it is characterised in that bearing is provided between the bushing and the output shaft
Part.
6. transmission mechanism according to claim 1, it is characterised in that the biased element is two ends respectively against before described
The helical spring of block piece and the backup member.
7. transmission mechanism according to claim 1, it is characterised in that the transmission mechanism also includes：The rear gear can be made
The operating assembly that part is rotated.
8. transmission mechanism according to claim 7, it is characterised in that at least one described backstop leg in the backup member
Portion is formed with the department of assembly that can be assembled with the operating assembly.
9. transmission mechanism according to claim 8, it is characterised in that the operating assembly at least include one with it is described interior
The operation ring of housing into rotation connection.
10. a kind of torque output instrument, including：Shell body, motor, it is characterised in that also include：As claim 1 to 9 is any
Transmission mechanism described in one, the motor drives the output shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410308026.2A CN105437162B (en) | 2014-06-30 | 2014-06-30 | Torque output tool and transmission mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410308026.2A CN105437162B (en) | 2014-06-30 | 2014-06-30 | Torque output tool and transmission mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105437162A CN105437162A (en) | 2016-03-30 |
| CN105437162B true CN105437162B (en) | 2017-08-29 |
Family
ID=55548034
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410308026.2A Active CN105437162B (en) | 2014-06-30 | 2014-06-30 | Torque output tool and transmission mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105437162B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114074313A (en) * | 2020-08-20 | 2022-02-22 | 南京德朔实业有限公司 | Multifunctional percussion drill |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1432369A (en) * | 1972-07-13 | 1976-04-14 | Black & Decker Ltd | Hammer drill mechanism |
| DE9404069U1 (en) * | 1994-03-10 | 1994-06-30 | Fan Chang, We Chuan, Taichung | Impact turning tool |
| CN101318232A (en) * | 2008-07-03 | 2008-12-10 | 陈会甫 | Multifunctional percussion drill |
| EP2216114B1 (en) * | 2009-02-05 | 2013-08-28 | Techtronic Power Tools Technology Limited | Power tool chuck assembly with hammer mechanism |
| CN102431013B (en) * | 2011-09-13 | 2014-08-20 | 南京久驰机电实业有限公司 | Electric drill with driving mode switching |
| CN102615633B (en) * | 2012-04-18 | 2014-11-12 | 浙江皇冠电动工具制造有限公司 | Multifunctional electric drill with functions capable of being conveniently switched |
-
2014
- 2014-06-30 CN CN201410308026.2A patent/CN105437162B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105437162A (en) | 2016-03-30 |
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Address after: 211106 No. 529, 159, Jiangjun Avenue, Jiangning District, Nanjing, Jiangsu Province Patentee after: Nanjing Quanfeng Technology Co.,Ltd. Address before: 211106, No. 159, general road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: NANJING CHERVON INDUSTRY Co.,Ltd. |
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