CN110273935B - Clutch and electric tool, garden tool and food waste disposer with same - Google Patents
Clutch and electric tool, garden tool and food waste disposer with same Download PDFInfo
- Publication number
- CN110273935B CN110273935B CN201810220566.3A CN201810220566A CN110273935B CN 110273935 B CN110273935 B CN 110273935B CN 201810220566 A CN201810220566 A CN 201810220566A CN 110273935 B CN110273935 B CN 110273935B
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- Prior art keywords
- clutch
- blocks
- piece
- elastic piece
- clutch blocks
- Prior art date
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- 239000010794 food waste Substances 0.000 title claims description 8
- 230000033001 locomotion Effects 0.000 claims abstract description 22
- 230000009471 action Effects 0.000 claims abstract description 6
- 230000001154 acute effect Effects 0.000 claims abstract description 3
- 230000000712 assembly Effects 0.000 claims description 14
- 238000000429 assembly Methods 0.000 claims description 14
- 230000006872 improvement Effects 0.000 description 8
- 229910000831 Steel Inorganic materials 0.000 description 6
- 239000010959 steel Substances 0.000 description 6
- 230000005540 biological transmission Effects 0.000 description 3
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005483 Hooke's law Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000010413 gardening Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000036316 preload Effects 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C7/00—Crushing or disintegrating by disc mills
- B02C7/11—Details
- B02C7/16—Driving mechanisms
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/04—Friction clutches with means for actuating or keeping engaged by a force derived at least partially from one of the shafts to be connected
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/60—Clutching elements
- F16D13/64—Clutch-plates; Clutch-lamellae
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D13/00—Friction clutches
- F16D13/58—Details
- F16D13/75—Features relating to adjustment, e.g. slack adjusters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C2201/00—Codes relating to disintegrating devices adapted for specific materials
- B02C2201/06—Codes relating to disintegrating devices adapted for specific materials for garbage, waste or sewage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2125/00—Components of actuators
- F16D2125/18—Mechanical mechanisms
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Food Science & Technology (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The invention provides a clutch, which comprises a support piece connected with a rotating shaft, at least two clutch blocks and an elastic piece matched with the clutch blocks, wherein the at least two clutch blocks are uniformly arranged along the circumferential direction of the support piece, the elastic piece is provided with a pretightening force for enabling the clutch blocks to move towards the rotating center of the support piece, the elastic piece is connected between the clutch blocks and the support piece, the clutch blocks are provided with a travel limiting part, the travel limiting part is constructed as a long groove, the extending direction of the long groove forms an acute angle with the moving direction of the clutch blocks, and one end of the elastic piece is clamped in the long groove and can move in the long groove under the action of centrifugal force. The invention makes the movement direction of the elastic piece after being stressed and the stress direction of the elastic piece not be in the same straight line by arranging the stroke limiting part, and the stroke of the clutch block in the movement direction of the stressed centrifugal force is far greater than the deformation of the elastic piece, so that the invention can be applied to the situation that the free length, the stroke and the stress of the elastic piece are harsh.
Description
Technical Field
The present invention relates to a clutch and an operating machine having the same, and more particularly, to a centrifugal clutch, an electric tool having the same, a garden tool, and a food waste disposer.
Background
The clutch is similar to a switch, and the clutch is used for engaging or disengaging the power transmission function or is used for limiting speed by triggering the switch, so that the driving part and the driven part of the clutch mechanism can be temporarily separated and can be gradually engaged. Rigid communication between the driving and driven members of the clutch is generally not available.
Most of clutches in the current market are structures in which the middle of the left clutch block and the right clutch block is connected through a tension spring or the left clutch block and the right clutch block lean against a supporting block and are connected through the tension spring. However, in actual use, the clutch often meets the severe requirements on the length, the stroke and the force of the tension spring. The movement direction of the tension spring after being stressed is consistent with the stress direction of the tension spring, because the tension spring is limited by space, the tension spring is expected to have small deformation and large pulling force when being installed at the same time, and the tension spring has large stroke and small stress change when being subjected to centrifugal force, however, the two conditions are contradictory according to Hooke's law F=kx, so the tension spring clutch in the prior art cannot solve the technical problem, and the prior scheme needs to be improved.
Disclosure of Invention
The invention aims to provide a clutch which is simple in structure and high in requirements on assembly and use conditions.
The invention also aims to provide an electric tool, a garden tool and a food waste disposer with the clutch.
The invention provides a clutch, which comprises a support member connected with a rotating shaft, at least two clutch blocks and an elastic member matched with the clutch blocks, wherein the at least two clutch blocks are uniformly arranged along the circumferential direction of the support member, the elastic member has pretightening force for enabling the clutch blocks to move towards the rotating center of the support member, the elastic member is connected between the clutch blocks and the support member, the clutch blocks are provided with stroke limiting parts, the stroke limiting parts are configured as long grooves, the extending direction of the long grooves forms an acute angle with the included angle of the moving direction of the clutch blocks, and one end of the elastic member is clamped in the long grooves and can move in the long grooves under the action of centrifugal force.
As a further improvement of one embodiment of the invention, two stroke limiting parts are arranged on each clutch block, at least two elastic pieces matched with the at least two clutch blocks cross and bypass the supporting piece, and two ends of each elastic piece are respectively arranged in the two stroke limiting parts of the corresponding clutch block.
As a further improvement of an embodiment of the invention, the elastic element is configured as a wire spring which bypasses the support element and whose two ends are arranged in the two travel limits, respectively.
As a further improvement of an embodiment of the invention, the elongated slot is configured as a waist-shaped slot or an arc-shaped slot.
As a further improvement of an embodiment of the present invention, an angle between an extending direction or a center line from one end to the other end of the long groove and a moving direction of the clutch block is greater than or equal to 10 degrees and less than 90 degrees.
As a further improvement of an embodiment of the present invention, the clutch includes at least four even clutch blocks, each two clutch blocks are buckled up and down along the axis of the rotation shaft to form a clutch assembly, at least two clutch assemblies are uniformly arranged along the rotation center of the support member, the elastic member is connected between the clutch assemblies and the support member, and the support member is axially positioned between each two clutch blocks of the at least two clutch assemblies.
As a further improvement of one embodiment of the invention, the two clutch blocks of each clutch assembly are correspondingly provided with the travel limiting parts, and one end of the elastic piece penetrates through the travel limiting parts on the two clutch blocks.
As a further improvement of one embodiment of the invention, two opposite surfaces of the two clutch blocks of each clutch assembly are respectively provided with a guide groove, the guide grooves extend along the movement direction of the clutch blocks, the support piece is provided with extension arms corresponding to the two clutch assemblies, and the extension arms are respectively clamped in the guide grooves on the two clutch assemblies.
As a further improvement of an embodiment of the invention, two clutch blocks of each clutch assembly are respectively provided with a hole and a bulge which are matched with each other, the two clutch blocks are inserted into the holes through the bulges to realize buckling, and the centers of gravity of the two buckled clutch blocks are symmetrically distributed relative to the movement direction of the two buckled clutch blocks.
The invention also relates to an electric tool, which comprises a motor and a rotating shaft driven by the motor, and further comprises the clutch according to any embodiment, wherein the support piece is fixedly connected to the rotating shaft.
The invention also relates to a gardening tool comprising a motor and a rotating shaft driven by the motor, and further comprising the clutch according to any one of the embodiments, wherein the support is fixedly connected to the rotating shaft.
The invention also relates to a food waste disposer, which comprises a motor and a rotating shaft driven by the motor, and further comprises the clutch according to any embodiment, wherein the support piece is fixedly connected to the rotating shaft.
The beneficial effects of the invention are as follows: from the above technical solutions, the present invention has a plurality of outstanding substantial technical features, and after implementing the technical solutions of the present invention, the significant technical progress is mainly: the stroke limiting part is arranged to enable the movement direction of the elastic piece after being stressed and the stress direction of the elastic piece to be not in the same straight line, and the stroke of the clutch block in the movement direction of the stressed centrifugal force is far greater than the deformation of the elastic piece, so that the clutch block can be applied to the situation that the free length, the stroke and the stress of the elastic piece are harsh.
Drawings
FIG. 1 is a schematic perspective view of a clutch in a preferred first embodiment of the invention;
FIG. 2 is a front view of the clutch of FIG. 1;
FIG. 3 is a rear view of the clutch of FIG. 1;
FIG. 4 is an exploded perspective view of the clutch of FIG. 1;
FIG. 5 is a front view of a clutch in a preferred second embodiment of the present invention;
FIG. 6 is a front view of a clutch in a preferred third embodiment of the present invention;
FIG. 7 is a front view of a clutch in a preferred fourth embodiment of the present invention, with the clutch in an initial state;
Fig. 8 is similar to fig. 7, with the clutch in an extreme position in which it is opened by centrifugal force.
Detailed Description
The present invention will be described in detail below with reference to embodiments shown in the drawings. However, these embodiments are not intended to limit the present invention, and structural or functional modifications thereof by those skilled in the art are intended to be included within the scope of the present invention.
Referring to fig. 1 to 4, which show a preferred embodiment of the clutch according to the present invention, as shown in fig. 1 and 2, the clutch includes a support 30 connected to a rotating shaft, two clutch blocks disposed opposite to each other on two sides of the support 30, and an elastic member 50 engaged with the clutch blocks, wherein the two clutch blocks may be symmetrically disposed with respect to the support 30, or three or more clutch blocks may be disposed uniformly along a circumferential direction of the support. The elastic member 50 has a pre-tightening force for moving the clutch blocks toward the rotation center of the support member 30. In this embodiment, preferably, the clutch includes four clutch blocks, each two clutch blocks (21, 22) are buckled up and down along the axis of the rotation shaft to form a clutch assembly 20, the two clutch assemblies 20 are symmetrically arranged relative to the support member 30, the elastic member 50 is connected between the clutch assembly 20 and the support member 30, wherein the elastic member 50 is connected with the support member 30 in a manner of bypassing and abutting against the support member 30, the support member 30 is axially positioned between the two clutch blocks of each clutch assembly 20, and the clutch assembly 20 as a whole can move radially relative to the support member against the pretightening force of the elastic member under the action of centrifugal force. Of course, the clutch assembly 20 may be provided in three, four or more, and may be uniformly disposed along the rotation center of the support member, all of which may embody the present invention.
In this embodiment, two clutch assemblies are provided, which are symmetrically disposed around the axial center of the support member 30 and are capable of moving toward and away from each other with respect to the support member 30, two elastic members 50 are provided and respectively connected between each clutch assembly and the support member 30, and the elastic members 50 have elastic forces for moving the two clutch assemblies toward each other. The clutch blocks (21, 22) are provided with travel limiting portions 201, one ends of the corresponding elastic members 50 are arranged in the travel limiting portions 201, the clutch blocks (21, 22) move along the rotation center away from the supporting member 30 under the action of centrifugal force, and one ends of the corresponding elastic members 50 move in the travel limiting portions. The stroke limiting part can be only arranged on one clutch block of each group of clutch assembly, and the stroke limiting parts can also be correspondingly arranged on the two clutch blocks, and one end of the elastic piece 50 penetrates through the stroke limiting parts on the two clutch blocks. In order to enable the clutch assembly to radially move under the action of centrifugal force, the elastic reset force of the elastic piece 50 borne by the clutch assembly is more uniform, two stroke limiting parts are arranged on each clutch block, the two stroke limiting parts are symmetrically arranged relative to the moving direction of the clutch block, the elastic piece 50 bypasses the supporting piece, and two ends of the elastic piece are respectively arranged in the two stroke limiting parts.
Specifically, the elastic member 50 is configured as a wire spring, which is connected between the corresponding clutch block and the support member 30 after crossing, and in this embodiment, preferably, the wire spring bypasses the support member 30 and both ends are respectively provided in the two stroke limiting portions. The travel limiting part is configured as a long groove, the long groove can be a linear long groove, and an included angle alpha between the extending direction of the long groove and the moving direction of the clutch block is larger than 0 degree and smaller than 90 degrees, for example, the included angle alpha can be set to be 15 degrees, 30 degrees, 45 degrees, 50 degrees, 75 degrees, 80 degrees and other values. The two ends of the steel wire spring are respectively clamped in the corresponding long grooves and can freely move in the long grooves. The clutch block is arranged in such a way that the clutch block can have a set stroke in the motion direction under the centrifugal force and is limited in the direction perpendicular to the motion direction, so that the stroke of the steel wire spring in the motion direction of the clutch block is far greater than the deformation amount of the steel wire spring, the technical effects that the deformation of the steel wire spring is small and the tension is large when the clutch block is in an initial state, and the stroke of the steel wire spring is large and the stress change is small when the clutch block is in an opened state under the centrifugal force are achieved. In this embodiment, the elastic member bypasses the supporting member and two ends of the elastic member are respectively connected to the two travel limiting portions of the same clutch block, and in other embodiments, the elastic member bypasses the supporting member and two ends of the elastic member are respectively connected to the two travel limiting portions of the two opposite clutch blocks, that is, only one elastic member may be provided, or each travel limiting portion corresponds to one elastic member, so that the present invention may be implemented.
The specific configuration and connection relationship of the clutch assembly will be described in detail below with reference to fig. 4. The support 30 is generally rotated by a rotation shaft, which includes a cylindrical main body 31 and a pair of extension arms 32 extending radially along the main body 31, and the rotation shaft passes through a hollow portion of the main body 31 to rotate the support 30. The support 30 further includes a protrusion 34 extending along the radial direction of the main body 31, the protrusion 34 corresponds to the extension arm 32 in position and extends in a direction perpendicular to each other, and the two clutch assemblies are abutted against the protrusion 34 to limit the opposite movement of the two clutch assemblies.
To illustrate one of the clutch assemblies, the clutch assembly 20 includes a first clutch block 21 and a second clutch block 22 arranged along an axial direction, the extension arm is clamped between the first clutch block 21 and the second clutch block 22, for facilitating connection between the two clutch blocks, a plurality of first holes 211 and a plurality of first protrusions (not shown) are disposed on the first clutch block 21, a plurality of second protrusions 221 matched with the plurality of first holes 211 and a plurality of second holes 222 matched with the plurality of first protrusions are disposed on the second clutch block 22 correspondingly, through the holes and protrusions matched with each other, the two clutch blocks are buckled through the protrusion insertion holes, and the centers of gravity of the two clutch blocks after buckling are symmetrically distributed along the radial movement direction of the two clutch blocks. Wherein the first clutch block 21 is provided with three holes on one side in the radial movement direction thereof and three protrusions on the other side, and the positions of the holes and the protrusions are symmetrical in the radial movement direction thereof, and then the second clutch block 22 is provided with three protrusions on one side in the radial movement direction thereof, and the three holes are also provided on the other side, and the positions of the holes and the protrusions are also symmetrical in the radial movement direction thereof. That is, the configuration of one of the two clutch blocks matches the other of the two clutch blocks. The first clutch block 21 and the second clutch block 22 are provided with guide grooves 24 on opposite surfaces thereof, the guide grooves 24 extend in the radial direction, and the two extension arms 32 are respectively engaged with the guide grooves 24 of the two clutch modules. The guide grooves 24 are internally provided with positioning steps 241 which are consistent with the extending direction of the guide grooves 24, two positioning steps 241 in each guide groove 24 are symmetrically arranged relative to the radial movement direction of the two clutch blocks, and the extension arm 32 is supported on the two positioning steps 241, or the extension arm 32 is supported between the two positioning steps in the two opposite guide grooves 24, so that the support piece 30 is axially positioned relative to the clutch assembly. The opposite surfaces of the two clutch blocks are also provided with limiting grooves 242 communicated with the guide grooves 24, the tail ends of the extension arms 32 are provided with limiting blocks 33 matched with the limiting grooves 242, and the distance of the two clutch blocks moving along the radial direction relative to the support 30 is limited by the moving distance of the limiting blocks 33 in the limiting grooves 242. In addition, the two clutch blocks are respectively provided with recesses 26 matching the outer circumferential surfaces of the main body 31 of the support 30, and the outer circumferential portions of the main body 31 protrude into the recesses 26, so that the clutch is more compact in construction.
Further, in order to facilitate connection between the clutch and the external connection member, the peripheries of the two clutch blocks are respectively provided with concave cavity portions 213 and 223, and the cavity portions 213,223 on the two clutch blocks are arranged in a penetrating manner, so that the cavity portions 213 and 223 can be used for connecting the external connection member.
Referring to fig. 5, unlike the second embodiment of the clutch according to the present invention, the stroke limiter is configured as a kidney-shaped long groove, or a kidney-shaped groove, and the angle α1 between the extending direction or the center line of the kidney-shaped groove from one end to the other end and the moving direction of the clutch block is also greater than 45 degrees and smaller than 90 degrees, and both ends of the wire spring are respectively engaged in the corresponding kidney-shaped grooves and can move in the kidney-shaped grooves. Of course, the edge of the stroke limiting portion may also include a plurality of segments of connected circular arcs, when the clutch block is opened by centrifugal force, the movement direction of the elastic member 50 after being stressed is not in the same straight line with the stress direction of the elastic member, so that the elastic member 50 is easier to slide in the arc-shaped groove.
Referring to fig. 6, a third embodiment of the clutch according to the present invention is different from the second embodiment in that the middle portion of the kidney-shaped groove is offset from both ends, and the middle portion of the kidney-shaped groove is offset from both ends toward the other clutch assembly group, and the middle portion of the kidney-shaped groove is offset from both ends in a direction away from the other clutch assembly group, so that the elastic member 50 can slide in the kidney-shaped groove more easily.
Referring to fig. 7 and 8, for a fourth preferred embodiment of the clutch of the present invention, fig. 7 shows the opposite clutch members in an unopened initial position, the elastic member is retained in the elongated slot by a preload, and fig. 8 shows the clutch members in an extreme position in an opened state by centrifugal force. Unlike the first embodiment, the stroke limiting portion is configured as a long groove, the long groove is a linear long groove, an included angle β between an extending direction of the long groove and a moving direction of the clutch block is greater than 0 degrees and less than 45 degrees, and two ends of the wire spring are respectively clamped in the corresponding long groove and can move in the long groove. The included angle beta in this embodiment is smaller, so that the travel of the clutch blocks in the direction of movement subject to centrifugal force is much greater than the deformation of the elastic member, compared with the prior art. Therefore, the included angle between the extending direction of the stroke limiting part and the moving direction of the clutch block can be adjusted according to actual requirements.
The clutch can be used for machine equipment such as electric tools, garden tools, food waste processors and the like, a supporting piece of the clutch can be fixedly connected to a rotating shaft driven by a motor, and the rotating shaft can be a motor output shaft, an intermediate rotating power transmission shaft or a tail end output shaft, namely a rotating shaft directly or indirectly driven by the motor, so that torque transmission or disconnection, stall protection, overload protection and the like are realized.
In the clutch, the stroke limiting part is arranged so that the movement direction of the elastic piece after being stressed and the stress direction of the elastic piece are not in the same straight line, and the stroke of the clutch block in the movement direction of the elastic piece subjected to centrifugal force is far greater than the deformation of the elastic piece, so that the clutch can be applied to the situation that the free length, the stroke and the stress of the elastic piece are harsh. The waist-shaped hole and the steel wire spring solve the problems that the spring installation deformation of the tension spring can not be solved under the space limitation reason is small, the installation tension is large, the spring stroke is large and the force change is small, and the requirements of special application scenes of users are met. In addition, the clutch assembly is composed of two clutch blocks which are buckled up and down, and the formed clutch blocks are provided with hollow structures and cavity parts and can be used for configuring other components. The support piece of the clutch is clamped between the upper clutch block and the lower clutch block, so that the limit problem of the support piece of the clutch in the upper and lower directions is solved, and a good safety protection effect is achieved. In addition, the clutch block can be made into various complex structures, so that the clutch block is suitable for more use occasions, and the die opening cost of the clutch block assembly is reduced.
It should be understood that although the present disclosure describes embodiments, not every embodiment is provided with a separate embodiment, and that this description is for clarity only, and that the skilled artisan should recognize that the embodiments may be combined as appropriate to form other embodiments that will be understood by those skilled in the art.
The above list of detailed descriptions is only specific to practical embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the spirit of the present invention should be included in the scope of the present invention.
Claims (8)
1. The utility model provides a clutch, includes support piece, at least two clutch blocks of connecting the rotation axis and with clutch block complex elastic component, at least two clutch blocks evenly set up along support piece's circumference, the elastic component has the pretightning force that makes clutch block to support piece's rotation center motion, its characterized in that:
The elastic piece is connected between the clutch block and the supporting piece, the clutch block is provided with a travel limiting part, the travel limiting part is configured as a long groove, the extending direction of the long groove and the included angle of the moving direction of the clutch block form an acute angle, and one end of the elastic piece is clamped in the long groove and can move in the long groove under the action of centrifugal force;
Two travel limiting parts are arranged on each clutch block, at least two elastic pieces matched with the at least two clutch blocks cross and bypass the supporting piece, and two ends of each elastic piece are respectively arranged in the two travel limiting parts of the corresponding clutch blocks;
And an included angle between the extending direction or the central line from one end to the other end of the long groove and the moving direction of the clutch block is more than or equal to 10 degrees and less than 90 degrees.
2. The clutch according to claim 1, wherein:
the elastic piece is configured as a wire spring, the wire spring bypasses the supporting piece, and two ends of the wire spring are respectively arranged in the two travel limiting parts.
3. The clutch according to claim 1, wherein:
the elongated slot is configured as a waist-shaped slot.
4. The clutch according to claim 1, wherein:
the clutch comprises at least four even clutch blocks, each two clutch blocks are buckled up and down along the axis of the rotating shaft to form a clutch assembly, the at least two clutch assemblies are uniformly arranged along the rotating center of the supporting piece, the elastic piece is connected between the clutch assemblies and the supporting piece, and the supporting piece is axially positioned between each two clutch blocks of the at least two clutch assemblies.
5. The clutch according to claim 4, wherein:
The two clutch blocks of each clutch assembly are correspondingly provided with the stroke limiting parts, and one end of the elastic piece penetrates through the stroke limiting parts on the two clutch blocks.
6. An electric tool, includes motor and the rotation axis that is driven by the motor, its characterized in that:
The power tool further includes the clutch according to any one of claims 1 to 5, the support being fixedly connected to the rotary shaft.
7. The utility model provides a garden instrument, includes motor and the rotation axis that is driven by the motor, its characterized in that:
the garden tool further comprises a clutch according to any one of claims 1 to 5, the support being fixedly connected to the rotation shaft.
8. A food waste disposer comprising a motor and a rotatable shaft driven by the motor, wherein:
the food waste disposer further includes a clutch as claimed in any one of claims 1 to 5, the support being fixedly connected to the rotary shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810220566.3A CN110273935B (en) | 2018-03-16 | 2018-03-16 | Clutch and electric tool, garden tool and food waste disposer with same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810220566.3A CN110273935B (en) | 2018-03-16 | 2018-03-16 | Clutch and electric tool, garden tool and food waste disposer with same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110273935A CN110273935A (en) | 2019-09-24 |
| CN110273935B true CN110273935B (en) | 2024-07-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810220566.3A Active CN110273935B (en) | 2018-03-16 | 2018-03-16 | Clutch and electric tool, garden tool and food waste disposer with same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110273935B (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208153566U (en) * | 2018-03-16 | 2018-11-27 | 天佑电器（苏州）有限公司 | Clutch and electric tool, garden instrument and food refuse disposer with it |
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| CN106787429A (en) * | 2017-03-10 | 2017-05-31 | 李燊 | Hub driven motor |
| CN107471144A (en) * | 2017-09-30 | 2017-12-15 | 上海优芝食品有限公司 | A kind of two-way centrifugal impact electric wrench |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN208153566U (en) * | 2018-03-16 | 2018-11-27 | 天佑电器（苏州）有限公司 | Clutch and electric tool, garden instrument and food refuse disposer with it |
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