CN110671443B - Centrifugal clutch with load connected to central shaft - Google Patents
Centrifugal clutch with load connected to central shaft Download PDFInfo
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- CN110671443B CN110671443B CN201910934015.8A CN201910934015A CN110671443B CN 110671443 B CN110671443 B CN 110671443B CN 201910934015 A CN201910934015 A CN 201910934015A CN 110671443 B CN110671443 B CN 110671443B
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- bearing
- rotor
- clutch
- assembly
- centrifugal
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Classifications
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- 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
- F16D43/00—Automatic clutches
- F16D43/02—Automatic clutches actuated entirely mechanically
- F16D43/04—Automatic clutches actuated entirely mechanically controlled by angular speed
- F16D43/14—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
- F16D43/18—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members with friction clutching members
Abstract
The invention relates to a centrifugal clutch with a load connected with a central shaft, which comprises an input rotor, an output rotor and a clutch mechanism, wherein the clutch mechanism comprises a centrifugal component synchronously rotating with the input rotor and a friction joint component synchronously rotating with the input rotor; the input rotor is sleeved on the outer periphery of the output rotor in a rotatable manner relative to the output rotor, the outer periphery of the output rotor is axially provided with a clutch mounting part and a rotor supporting part, the friction joint assembly is mounted on the clutch mounting part and is provided with a clutch cavity, and the input rotor is provided with a clutch mounting part sleeved on the friction joint assembly in a rotatable manner relative to the output rotor and the friction joint assembly and a rotor mounting part sleeved on the outer periphery of the rotor supporting part; the centrifugal component is arranged on the periphery of the clutch mounting part and is accommodated in the clutch cavity; the centrifugal assembly is radially movable during rotation to engage or disengage the friction engagement assembly to switch the motion state of the output rotor.
Description
Technical Field
The invention belongs to the technical field of centrifugal clutches, and particularly relates to a centrifugal clutch with a central shaft connected with a load.
Background
A centrifugal clutch is a clutch that relies on centrifugal force generated by a centrifuge to achieve automatic disengagement or engagement. The working principle is as follows: the rotor at the center shaft is connected with power input, the rotor sleeved on the periphery of the rotor at the center shaft is connected with a load end, the rotor at the center shaft drives the throwing block to rotate to generate centrifugal force, the throwing block is connected with the rotor connected with the load end under the action of the centrifugal force, and the torque of the rotor at the center shaft is transmitted to the rotor connected with the load end under the action of the friction force.
However, when the motor is in a high-speed and light-weight demand (such as an unmanned plane), the output end of the motor is connected to the rotor at the center shaft, and the diameter of the rotor at the center shaft is limited because the clutch cannot be made too large due to the light-weight demand, and at this time, the motor connected to the rotor at the center shaft cannot meet the high torque required at the high-speed, so that the motor is easy to damage. The inventors have proposed the present application in view of this problem.
Disclosure of Invention
The invention aims to solve the problems, and provides a centrifugal clutch with a central shaft connected with a load, wherein a rotor positioned at the central shaft is used as a power output rotor, and a rotor sleeved on the periphery of the output rotor is used as a power input rotor, so that the shaft diameter of a motor for connecting the power input rotor can be increased, and the aim of meeting the requirement of larger torque is fulfilled.
The invention is realized in that the centrifugal clutch with the center shaft connected with the load comprises an input rotor, an output rotor and a clutch mechanism, wherein the clutch mechanism comprises a centrifugal component and a friction joint component, the centrifugal component rotates synchronously with the input rotor, and the friction joint component rotates synchronously with the output rotor; the input rotor is sleeved on the periphery of the output rotor in a rotatable mode relative to the output rotor, the periphery of the output rotor is axially provided with a clutch fixing part and a rotor supporting part, the friction joint assembly is arranged on the clutch fixing part and is provided with a clutch cavity, and the input rotor is axially provided with a clutch installation part sleeved on the friction joint assembly in a rotatable mode relative to the output rotor and the friction joint assembly and a rotor installation part sleeved on the periphery of the rotor supporting part; the centrifugal component is arranged on the periphery of the clutch installation part and is accommodated in the clutch cavity; the centrifugal assembly is radially movable during rotation to engage or disengage the friction engagement assembly to switch the output rotor's motion state.
Preferably, the input rotor comprises a power input part and a connecting sleeve provided with the clutch fixing part and used for connecting the power input part and the centrifugal assembly, the connecting sleeve is axially fixed on the friction joint assembly through a first bearing assembly, the power input part is rotatably supported on the rotor supporting part through a second bearing assembly, and two ends of the power input part in the axial direction are respectively abutted against an inner ring of the first bearing assembly and an outer ring of the second bearing assembly so as to enable the connecting sleeve and the power input part to be axially fixed.
Preferably, the connecting sleeve is provided with a clutch mounting part and a first key connecting part along the axial direction, the inner periphery of the power input piece is provided with a second key connecting part and a rotor supporting part along the axial direction, and the second key connecting part is adapted to the first key connecting part so that the connecting sleeve and the power input piece can synchronously rotate.
Preferably, the friction engagement assembly comprises a first support plate, a second support plate and a clutch linkage member axially clamped between the first support plate and the second support plate; and a centrifugal chamber positioned on the inner peripheral side of the clutch linkage piece and the outer peripheral side of the output rotor is clamped between the first support plate and the second support plate.
Preferably, the first bearing assembly comprises a first bearing and a second bearing, and the first supporting plate and the second supporting plate are sleeved on the periphery of the connecting sleeve through the first bearing and the second bearing respectively; and an installation gap for the connecting sleeve to axially pass through is formed between the second supporting plate and the output rotor.
Preferably, the inner periphery of the connecting sleeve is in clearance fit with the outer periphery of the output rotor.
Preferably, a shaft shoulder, which is far away from the second bearing, on the outer ring of the first bearing is abutted on the first supporting plate, a shaft shoulder, which is close to the second bearing, on the inner ring of the first bearing is abutted on the connecting sleeve, a shaft shoulder, which is far away from the first bearing, on the outer ring of the second bearing is abutted on the second supporting plate, and a shaft shoulder, which is close to the first bearing, on the inner ring of the second bearing is abutted on the connecting sleeve; one end of the power input piece in the axial direction is abutted against the inner ring of the second bearing.
Preferably, the clutch mounting part is provided with a first bearing mounting part, a second bearing mounting part and a throwing block mounting part clamped between the first bearing mounting part and the second bearing mounting part along the axial direction, and the centrifugal assembly comprises throwing blocks mounted on the throwing block mounting part at equal intervals along the circumferential direction.
Preferably, one end of the output rotor in the axial direction is provided with a clutch fixing part, the other end is provided with a rotor supporting part, and a gap rotating part clamped between the clutch fixing part and the rotor supporting part is provided; the radial dimension of the rotor supporting part is smaller than that of the clearance rotating part, so that a shaft shoulder on the inner ring of the third bearing, which is close to one end of the first bearing assembly, is abutted against the rotor supporting part; the difference between the radial dimensions of the clearance rotating part and the rotor supporting part is smaller than the R-angle radius of the shaft shoulder of the third bearing, so that the third bearing can slightly move along the axial direction during installation.
Preferably, the second bearing assembly is composed of a third bearing, the shoulder of the outer ring of the third bearing is abutted against the inner periphery of the power input piece, and the shoulder of the inner ring of the third bearing is abutted against the outer periphery of the output rotor.
By adopting the technical scheme, the invention can obtain the following technical effects:
the centrifugal clutch with the center shaft connected with the load provided by the invention has the advantages that the friction joint component forming the clutch cavity is fixedly arranged on the output rotor, the throwing block for driving the output rotor to rotate is arranged on the input rotor, and the input rotor is sleeved on the periphery of the output rotor, so that the throwing block can move outwards along the radial direction to joint the friction joint component when the input rotor rotates, and the aim of driving the output rotor positioned at the center shaft to synchronously rotate is achieved. The mode enables the diameter of the input rotor to be increased, so that the shaft diameter of the motor connected with the input rotor can be increased, and the motor can be protected from being damaged when the motor faces the demand scene of high rotating speed and light weight.
Drawings
Fig. 1 is a schematic diagram of a centrifugal clutch with a load coupled to a central shaft.
Fig. 2 depicts a schematic structural view of the friction engagement assembly of the present invention.
Fig. 3 shows a schematic structure of the output rotor of the present invention.
Fig. 4 depicts a schematic structural view of the friction engagement assembly and output rotor of the present invention.
Fig. 5 shows a schematic structural diagram of the input rotor of the present invention.
Fig. 6 shows a schematic view of the structure of the output rotor, the connecting sleeve and the flinger, as seen in the axial direction.
Drawing reference numerals
1-input rotor, 11-adapter sleeve, 111-clutch mounting, 111A-first bearing mounting, 111B-second bearing mounting, 111C-shoe mounting, 111D-lug, 111E-receiving, 111F-sliding slot, 112-first key connection, 12-power input, 121-rotor mounting, 122-second key connection, 123-second dust retainer, 124-pulley connection, 13-flat key, 14-guide plate, 2-output rotor, 21-clutch securing, 22-rotor support, 23-coupling shaft hole, 24-gap rotation, 3-clutch mechanism, 31-friction engagement assembly, 32-first support plate, 321-first mounting slot, 322-second mounting slot, 33-second support plate, 331-third mounting slot, 332-first dust retainer, 34-clutch chamber, 35-centrifugal assembly, 351-shoe, 36-clutch assembly, 4-first bearing assembly, 41-first bearing, 42-second bearing assembly, 5-third bearing linkage.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments. All other embodiments, based on the embodiments of the invention, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the invention. Thus, the following detailed description of the embodiments of the invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "upper", "lower", "middle", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
The structure and function of the solution of the present application will now be described in detail with reference to fig. 1 to 6.
The invention provides a centrifugal clutch with a central shaft connected with a load, and referring to fig. 1, the clutch comprises an input rotor 1, an output rotor 2 and a clutch mechanism 3, wherein the power output end of the clutch is the output rotor 2 positioned at the central shaft, and a connecting shaft hole 23 extending along the axial direction is arranged at the axis of the output rotor 2 and is used for connecting the load. The power input end of the clutch is an input rotor 1 sleeved on the periphery of an output rotor 2, and the input rotor 1 is sleeved on the periphery of the output rotor 2 in a rotatable manner relative to the output rotor 2. The clutch mechanism 3 includes a friction engagement assembly 31 and a centrifugal assembly 35, and the centrifugal assembly 35 is mounted on the input rotor 1 and is rotatable in synchronization with the input rotor 1. Specifically, the input rotor 1 has a clutch mounting portion 111 and a rotor mounting portion 121 in the axial direction, the outer periphery of the clutch mounting portion 111 is rotatably fitted to the inner periphery of the friction engagement assembly 31 with respect to the friction engagement assembly 31, and the clutch mounting portion 111 is simultaneously rotatable with respect to the output rotor 2. The friction engagement assembly 31 is fixedly mounted on the clutch fixing portion 21, and has a clutch chamber 34 on the outer peripheral side of the output rotor 2.
The centrifugal assembly 35 is mounted on the outer periphery of the clutch mounting portion 111, and the centrifugal assembly 35 can be accommodated in the clutch chamber 34. When the input rotor 1 rotates, the centrifugal component 35 can move along the radial direction relative to the output rotor 2 and the friction joint component 31 in the rotating process, and when the rotating speed of the input rotor 1 reaches the preset rotating speed, the centrifugal component 35 is jointed with the friction joint component 31 to drive the friction joint component 31 to rotate, so that the output rotor 2 is driven to rotate. When the rotational speed of the input rotor 1 is less than the preset rotational speed, the centrifugal assembly 35 is disengaged from the engaged state with the frictional engagement assembly 31, so that the output rotor 2 stops rotating. That is, the output rotor 2 fitted around the inner periphery of the input rotor 1 is switched between the rotating state and the non-rotating state.
In the present invention, by axially separating the output rotor 2 into the clutch fixing portion 21 and the rotor supporting portion 22 with reference to fig. 1 and 3, the clutch fixing portion 21 is fixedly fitted with the friction engagement assembly 31 having the clutch chamber 34. Referring to fig. 1, 2 and 3, the input rotor 1 is fitted around the output rotor 2, and the clutch mounting portion 111 and the rotor mounting portion 121 are axially provided on the input rotor 1, and the centrifugal assembly 35 is mounted on the clutch mounting portion 111, and the centrifugal assembly 35 is accommodated in the clutch chamber 34. According to the invention, through the structure, the motion state of the output rotor 2 is switched, and the input rotor 1 is sleeved on the periphery of the output rotor 2, so that the shaft diameter of the motor for connecting the input rotor 1 and inputting power can be increased, and further, under the scene of high rotating speed and light weight, larger torque can be provided, and the technical problem that when the shaft diameter of the motor is limited and cannot be increased, the torque cannot meet the requirement, and the motor is damaged can be solved.
In an embodiment of the invention, referring to fig. 1, an input rotor 1 comprises a power input 12 and a connection sleeve 11. The power input element 12 has the rotor attachment portion 121 described above on the inner periphery, and the clutch attachment portion 111 is provided on the outer periphery of the connection sleeve 11. The outer circumference of the connecting sleeve 11 is sleeved on the inner circumference of the friction joint assembly 31 through a first bearing assembly 4, and the connecting sleeve 11 is kept fixed relative to the friction joint assembly 31 through the first bearing assembly 4 in the axial direction, namely, the connecting sleeve 11 is kept fixed relative to the output rotor 2 through the first bearing assembly 4 in the axial direction. The inner periphery of the power input member 12 is sleeved on the outer periphery of the output rotor 2 through a second bearing assembly.
In an embodiment of the present invention, in combination with fig. 1, 2 and 4, the first bearing assembly 4 comprises a first bearing 41 and a second bearing 42. The friction engagement assembly 31 is comprised of a first support plate 32, a second support plate 33, and a clutch link 36, the first support plate 32 and the second support plate 33 being disposed at intervals in the axial direction, the clutch link 36 being interposed between the first support plate 32 and the second support plate 33. A clutch chamber 34 is formed between the first support plate 32, the second support plate 33, and the clutch link 36. The first support plate 32 has a first mounting groove 321 and a second mounting groove 322, and the first support plate 32 is axially abutted on the clutch fixing portion 21 through an axial end face of the first mounting groove 321 to axially fix the friction engagement assembly 31 relative to the output rotor 2, and the first support plate 32 is sleeved on an outer peripheral face of the clutch fixing portion 21 through an inner peripheral face of the first mounting groove 321 to coaxially couple the friction engagement assembly 31 and the output rotor 2. The first support plate 32 is fixedly coupled to the output rotor 2 by means of fasteners such as screws, pins, etc. The second support plate 33 has a third mounting groove 331, the second support plate 33 and the clutch link 36 are detachably and fixedly connected together, and the clutch link 36 and the first support plate 32 are detachably and fixedly connected together, i.e., for fixing the clutch link 36 and the second support plate 33.
In an embodiment of the present invention, referring to fig. 1 and 5, the clutch mounting portion 111 has a first bearing mounting portion 111A, a second bearing mounting portion 111B, and a slinger mounting portion 111C interposed between the first bearing mounting portion 111A and the second bearing mounting portion 111B in the axial direction. The first bearing 41 has a first outer ring shoulder located on an outer ring of the first bearing 41, and a first inner ring shoulder located on an inner ring of the first bearing 41, the first outer ring shoulder being located on an end of an outer ring of the first bearing 41 remote from the second bearing 42, the first outer ring shoulder abutting on one end surface of the second mounting groove 322 in the axial direction along the axial direction, the first outer ring shoulder abutting on an inner circumferential surface of the second mounting groove 322 in the radial direction along the radial direction. The first inner ring shoulder in the axial direction is located at one end of the inner ring of the first bearing 41 away from the first outer ring shoulder, and the first inner ring shoulder in the axial direction and the radial direction abuts on the first bearing mounting portion 111A. The second bearing 42 has a second outer race shoulder located on the outer race of the second bearing 42, and a second inner race shoulder located on the inner race of the second bearing 42, the second outer race shoulder being located axially on the outer race of the second bearing 42 at an end of the second bearing 42 remote from the first bearing 41, and the second inner race shoulder being located axially on the inner race of the second bearing 42 at an end of the second bearing near the first bearing 41. The second outer-ring shoulder in the axial direction and the radial direction abuts on the third mounting groove 331, and the second inner-ring shoulder in the axial direction and the radial direction abuts on the second bearing mounting portion 111B. Wherein, the radial dimension of the first bearing mounting part 111A and the second bearing mounting part 111B is smaller than the radial dimension of the throwing block mounting part 111C. The first bearing 41 and the second bearing 42 are respectively abutted against end surfaces of the first bearing mounting portion 111A and the second bearing mounting portion 111B where they meet the slinger mounting portion 111C in the axial direction. The above-mentioned manner that the connecting sleeve 11 is fixedly connected with the friction engagement assembly 31 through the first bearing 41 and the second bearing 42 respectively makes the position of the connecting sleeve 11 relative to the friction engagement assembly 31 (i.e., the output rotor 2) in the radial direction and the axial direction kept fixed.
In an embodiment of the present invention, referring to fig. 1, 4 and 5, the second support plate 33 has a predetermined installation gap from the outer circumference of the output rotor 2, so as to allow the connection sleeve 11 to pass through in the axial direction when the connection sleeve 11 is installed, thereby achieving the purpose that the connection sleeve 11 can be sleeved on the outer circumference of the output rotor 2 and is convenient to install.
Preferably, in conjunction with fig. 1, 4 and 5, the inner circumference of the connecting sleeve 11 is in clearance fit with the outer circumference of the output rotor 2, so that the rotation of the connecting sleeve 11 and the output rotor 2 will not interfere with other external forces except the linkage of the centrifugal assembly 35 and the friction engagement assembly 31.
In an embodiment of the present invention, referring to fig. 1, 4 and 5, the second bearing assembly is formed by a third bearing 5, and two shoulders on the outer ring of the third bearing 5 abut against the rotor mounting portion 121 (i.e., the power input member 12). One end of the axial power input member 12 adjacent to the first bearing assembly 4 abuts against the inner race of the second bearing 42, which cooperates with the rotor mounting portion 121 to maintain the position of the power input member 12 axially fixed relative to the output rotor 2. It will be appreciated that the power input member 12 is not in contact with the outer race of the second bearing 42, and that the power input member 12 is not in contact with the second support plate 33.
In an embodiment of the present invention, referring to fig. 1, 2 and 5, the second support plate 33 has a first dust blocking portion 332 with a radial dimension smaller than a radial dimension of an outer ring of the second bearing 42, one end of the power input member 12 near the second bearing 42 has a second dust blocking portion 123, the second dust blocking portion 123 is located on an inner periphery of the first dust blocking portion 332, and the first dust blocking portion 332 extends along a radial dimension decreasing direction to decrease a radial distance between the second support plate 33 and the power input member 12, so as to solve a technical problem that dust easily enters the second bearing 42 and the clutch chamber 34 when the radial distance between the second support plate 33 and the power input member 12 is too large. Preferably, a step is formed between the first dust blocking portion 332 and the first mounting groove 321, so that the first dust blocking portion 332 is in clearance fit with the second bearing 42 along the axial direction, so as to achieve the purpose that the first dust blocking portion 332 does not interfere with the rotation of the second bearing 42 during the radial extension process, and at this time, the second dust blocking portion 123 abuts against the inner ring of the second bearing 42 along the axial direction. It will be appreciated that in other embodiments, it may be possible for the second dust guard 123 to extend in a direction of increasing radial dimension to reduce the spacing of the second support plate 33 and the power input member 12 in the radial direction. At this time, it is preferable that there is a step between the second dust guard 123 and the end of the power input member 12 abutting against the inner race of the second bearing 42, so that the second dust guard 123 does not interfere with the rotation of the second bearing 42 during the radial extension.
Preferably, a shoulder on the outer race of the third bearing 5 at an end remote from the first bearing assembly 4 abuts a first shaft clip secured to the inner periphery of the power input member 12 to facilitate installation and securement of the third bearing 5.
In an embodiment of the present invention, referring to fig. 1, 4 and 5, the output rotor 2 has a clutch fixing portion 21 at one end in the axial direction, a rotor supporting portion 22 at the other end in the axial direction, and a gap rotating portion 24 between the clutch fixing portion 21 and the rotor supporting portion 22, wherein the gap rotating portion 24 is in a gap fit with the connecting sleeve 11. The radial dimension of the rotor supporting portion 22 is smaller than the radial dimension of the gap rotating portion 24 to form a step, so that a shoulder on the inner ring of the third bearing 5 near one end of the first bearing assembly 4 abuts against the rotor supporting portion 22. The shoulder of the end of the third bearing 5, which is far from the first bearing assembly 4, is abutted against the outer circumference of the rotor support 22 (output rotor 2), wherein the axial direction of the output rotor 2 is fixed to the output rotor 2 by a second shaft clip, which is fixed to the outer circumference of the output rotor 2.
In an embodiment of the present invention, referring to fig. 1 and 4, the difference between the radial dimensions of the gap rotation portion 24 and the rotor support portion 22 is smaller than the R-angle radius of the shoulder of the third bearing 5, so that the third bearing 5 allows a small play in the axial direction when mounted. In the clutch of the present application, there may be an error in accuracy during processing, and if the inner ring of the third bearing 5 is directly fixed in the axial direction, the inner ring and the outer ring of the third bearing 5 may mutually move in the axial direction due to the installation error. The difference between the radius of the gap rotation part 24 and the radius dimension of the rotor support part 22 is designed to be smaller than the R angle radius of the shaft shoulder of the third bearing 5, so that the third bearing 5 can slightly move towards the direction of the first bearing assembly 4 during installation, when the assemblies and parts are designed in the process of machining, the output rotor 2 can be taken as a reference shaft, machining tolerance can be formulated by the friction joint assembly 31 and the power input piece 12 by taking the output rotor 2 as a reference, for example, after the friction joint assembly 31 and the power input piece 12 are assembled on the output rotor 2, the installation error of the distance between the first bearing installation part 111A and the third bearing 5 installation part along the axial direction is controlled within a preset lower tolerance range, and the designed step height is smaller than the R angle of the third bearing 5, so that the third bearing 5 can be axially adjusted during installation, and the condition that the outer ring and the inner ring of the third bearing 5 cannot be axially misplaced due to the machining and the assembly error during installation is achieved. It will be appreciated that in other embodiments, the difference in radial dimensions of the gap turning section 24 and the rotor support section 22 can have a radius R that is greater than the radius R of the shoulder of the third bearing 5.
It will be appreciated that in other embodiments, the second bearing assembly may be formed of a plurality of juxtaposed bearings for increasing the support force of the power input member 12.
In an embodiment of the present invention, referring to fig. 1 and 5, the connecting sleeve 11 has a clutch mounting portion 111 and a first key connection portion 112 along an axial direction, and the power input member 12 has a second key connection portion 122 and a rotor supporting portion 22 along an axial direction at an inner circumference thereof, and the second key connection portion 122 is adapted to the first key connection portion 112 so that the connecting sleeve 11 and the power input member 12 can rotate synchronously. The first key connection portion 112 is formed by a key slot structure, a flat key 13 can be placed in the first key connection portion 112, the second key connection portion 122 is formed by a key slot structure extending along an axial direction, two end faces of the second key connection portion 122 along a circumferential direction are slidingly matched with the flat key 13, and the first key connection portion 112, the flat key 13 and the second key connection portion 122 are mutually matched so that the power input piece 12 and the connecting sleeve 11 are circumferentially fixed to be capable of synchronously rotating. It should be understood that in the present embodiment, the connecting sleeve 11 may be provided with one first key connection portion 112, and may be provided with a plurality of first key connection portions 112 along the circumferential direction, and the power input member 12 is provided with a second key connection portion 122 corresponding to the first key connection portion 112. In other embodiments, the first key connection 112 may be formed by external splines, and the second key connection 122 may be formed by internal splines capable of sliding axially on the external splines to achieve synchronous rotation of the power input member 12 and the connection sleeve 11.
In one embodiment of the present invention, referring to fig. 5 and 6, the centrifugal assembly 35 includes the flinger 351 mounted on the flinger mounting part 111C at equal intervals in the circumferential direction. The slinger mounting portion 111C includes a plurality of radially projecting lugs 111D, each slinger 351 having a sliding groove 111F thereon adapted to the lug 111D so that each slinger 351 can slide radially relative to its corresponding sliding groove 111F. The swing block mounting portion 111C includes receiving portions 111E located on both sides of the protruding portion 111D in the axial direction, one receiving groove is formed by the protruding portion 111D, one receiving portion 111E and the first bearing 41, another receiving groove is formed by the protruding portion 111D, the other receiving portion 111E and the second bearing 42, guide plates 14 are respectively arranged on both end surfaces of the protruding portion 111D in the axial direction, and at least part of the guide plates 14 are received in the receiving grooves. The guide plates 14 are fixed to the projection 111D, and the guide plates 14 are formed with annular guide grooves to restrict the swing blocks 351 from swinging in the axial direction. The guide plate 14 has a bending portion formed by bending and extending at an end far from the output rotor 2 in a direction far from the clutch mounting portion 111, one bending portion extending in an axial direction and inserted into a dust-proof groove formed in the first support plate 32, and the other bending portion extending in an axial direction and inserted into a dust-proof groove formed in the second support plate 33, the bending portion being for isolating the clutch chamber 34.
In an embodiment of the present invention, referring to fig. 5, a pulley connection portion 124 is formed on the outer periphery of the power input member 12, and the pulley connection portion 124 is connected with an output shaft of a motor for inputting power through belt transmission, so that the clutch and the motor for inputting power in the present application cannot form rigid connection, and the diameter of the output shaft of the motor can be freely designed according to the requirements of torque and rotation speed without being limited by the size of the clutch through pulley connection.
In one embodiment of the present invention, the power input member 12 is provided with an axially extending mounting hole for coupling and fixing an output shaft of a motor for inputting power by a screw, a fixing pin, or the like.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. A centrifugal clutch with a load connected with a central shaft, comprising an input rotor (1), an output rotor (2) and a clutch mechanism (3), wherein the clutch mechanism (3) comprises a centrifugal assembly (35) which rotates synchronously with the input rotor (1) and a friction joint assembly (31) which rotates synchronously with the output rotor (2);
it is characterized in that the method comprises the steps of,
the input rotor (1) is sleeved on the periphery of the output rotor (2) in a rotatable manner relative to the output rotor (2), the periphery of the output rotor (2) is axially provided with a clutch fixing part (21) and a rotor supporting part (22), the friction joint assembly (31) is arranged on the clutch fixing part (21) and is provided with a clutch cavity (34),
the input rotor (1) is provided with a clutch mounting part (111) which is sleeved on the friction joint assembly (31) in a rotatable manner relative to the output rotor (2) and the friction joint assembly (31) along the axial direction, and a rotor mounting part (121) which is sleeved on the periphery of the rotor supporting part (22); the centrifugal assembly (35) is mounted on the outer periphery of the clutch mounting part (111) and is accommodated in the clutch chamber (34);
-said centrifugal assembly (35) being radially movable during rotation to engage or disengage said friction engagement assembly (31) to switch the state of motion of said output rotor (2);
the input rotor (1) comprises a power input piece (12) and a connecting sleeve (11) which is provided with a clutch fixing part (21) and is used for connecting the power input piece (12) and a centrifugal assembly (35), the connecting sleeve (11) is axially fixed on a friction joint assembly (31) through a first bearing assembly (4), the power input piece (12) is rotatably supported on a rotor supporting part (22) through a second bearing assembly, and two ends of the power input piece (12) in the axial direction are respectively abutted against an inner ring of the first bearing assembly (4) and an outer ring of the second bearing assembly so that the connecting sleeve (11) and the power input piece (12) are axially fixed relative to the output rotor (2);
one end of the output rotor (2) along the axial direction is provided with a clutch fixing part (21), the other end is provided with a rotor supporting part (22), and a gap rotating part (24) clamped between the clutch fixing part (21) and the rotor supporting part (22) is provided; the radial dimension of the rotor supporting part (22) is smaller than that of the clearance rotating part (24), so that a shaft shoulder on the inner ring of the third bearing (5) near one end of the first bearing assembly (4) is abutted against the rotor supporting part (22); the difference between the radial dimensions of the gap rotation part (24) and the rotor supporting part (22) is smaller than the R-angle radius of the shaft shoulder of the third bearing (5), so that the third bearing (5) can slightly move along the axial direction during installation.
2. Centrifugal clutch with a load coupled to a central shaft according to claim 1, characterized in that the connecting sleeve (11) has a clutch mounting part (111) and a first key connection part (112) in the axial direction, the inner circumference of the power input member (12) has a second key connection part (122) and a rotor bearing part (22) in the axial direction, the second key connection part (122) is adapted to the first key connection part (112) to enable synchronous rotation of the connecting sleeve (11) and the power input member (12).
3. Centrifugal clutch with a load coupled to a central shaft according to claim 2, characterized in that the friction engagement assembly (31) comprises a first support plate (32), a second support plate (33) and a clutch linkage (36) axially clamped between the first support plate (32) and the second support plate (33); a centrifugal chamber positioned on the inner peripheral side of the clutch linkage piece (36) and the outer peripheral side of the output rotor (2) is clamped between the first supporting plate (32) and the second supporting plate (33).
4. A centrifugal clutch with a central shaft coupled to a load according to claim 3, wherein the first bearing assembly (4) comprises a first bearing (41) and a second bearing (42), the first support plate (32) and the second support plate (33) being respectively sleeved on the periphery of the connecting sleeve (11) through the first bearing (41) and the second bearing (42) so as to radially fix the connecting sleeve (11); an installation gap for the connecting sleeve (11) to axially pass through is arranged between the second supporting plate (33) and the output rotor (2).
5. Centrifugal clutch with a central shaft coupled to a load according to claim 4, characterized in that the inner circumference of the connection sleeve (11) is in clearance fit with the outer circumference of the output rotor (2).
6. The centrifugal clutch with a load coupled to a central shaft according to claim 4, characterized in that a shoulder on an outer ring of the first bearing (41) remote from the second bearing (42) abuts against the first support plate (32), a shoulder on an inner ring of the first bearing (41) close to the second bearing (42) abuts against the connecting sleeve (11), a shoulder on an outer ring of the second bearing (42) remote from the first bearing (41) abuts against the second support plate (33), and a shoulder on an inner ring of the second bearing (42) close to the first bearing (41) abuts against the connecting sleeve (11); one end of the power input piece (12) in the axial direction is abutted against the inner ring of the second bearing (42).
7. The centrifugal clutch of a center shaft coupling load according to claim 6, wherein the clutch mounting portion (111) has a first bearing mounting portion (111A), a second bearing mounting portion (111B), and a slinger mounting portion (111C) interposed between the first bearing mounting portion (111A) and the second bearing mounting portion (111B) in an axial direction, and the centrifugal assembly (35) includes slingers (351) mounted on the slinger mounting portion (111C) at equal intervals in a circumferential direction.
8. The centrifugal clutch with a load coupled to a central shaft according to claim 6, wherein the second bearing assembly is constituted by a third bearing (5), the shoulder of the outer ring of the third bearing (5) being in abutment against the inner periphery of the power input member (12), the shoulder of the inner ring of the third bearing (5) being in abutment against the outer periphery of the output rotor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934015.8A CN110671443B (en) | 2019-09-29 | 2019-09-29 | Centrifugal clutch with load connected to central shaft |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910934015.8A CN110671443B (en) | 2019-09-29 | 2019-09-29 | Centrifugal clutch with load connected to central shaft |
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| Publication Number | Publication Date |
|---|---|
| CN110671443A CN110671443A (en) | 2020-01-10 |
| CN110671443B true CN110671443B (en) | 2023-08-08 |
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| CN201910934015.8A Active CN110671443B (en) | 2019-09-29 | 2019-09-29 | Centrifugal clutch with load connected to central shaft |
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| CN (1) | CN110671443B (en) |
Citations (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH237836A (en) * | 1943-07-22 | 1945-05-31 | Stihl Andreas | Centrifugal clutch. |
| GB720168A (en) * | 1950-05-16 | 1954-12-15 | Eickhoff Geb | Improvements in or relating to centrifugal clutches |
| BE670068A (en) * | 1964-11-17 | 1966-01-17 | ||
| GB1094770A (en) * | 1966-10-03 | 1967-12-13 | Richard Mcintire Wyman | Centrifugal clutch |
| GB1184499A (en) * | 1966-10-07 | 1970-03-18 | Fichtel & Sachs Ag | Improvements in or relating to Centrifugal Clutches. |
| GB1418132A (en) * | 1972-02-15 | 1975-12-17 | Stihl Maschf Andreas | Motor chain saw |
| DE3009853B1 (en) * | 1980-03-14 | 1981-07-30 | Robert Scheuffele GmbH & Co KG, 7120 Bietigheim-Bissingen | Centrifugal clutch |
| WO1996000352A1 (en) * | 1994-06-24 | 1996-01-04 | Hydrostress Ag | Centrifugal clutch and a floor-joint cutter |
| JPH1122746A (en) * | 1997-07-07 | 1999-01-26 | Kyowa Gokin Kk | Synchronous device for transmission |
| CN1516788A (en) * | 2000-03-28 | 2004-07-28 | �ձ�������ʽ���� | One-way clutch built-in type rotation transmission device |
| CN2643070Y (en) * | 2003-08-08 | 2004-09-22 | 重庆力帆实业（集团）有限公司 | Centrifugal friction clutch |
| DE102005022457A1 (en) * | 2005-05-14 | 2006-11-30 | Zf Friedrichshafen Ag | Electromagnetically switching coupling for a liquid pump of a vehicle comprises an input part, an electromagnet, a pump shaft and a coupling mechanism acting between the input part and the pump shaft and supported by a spring force |
| TW200726927A (en) * | 2005-10-27 | 2007-07-16 | Honda Motor Co Ltd | Centrifugal clutch |
| CN101764463A (en) * | 2010-03-04 | 2010-06-30 | 宁波北斗科技有限公司 | Center shaft type electromobile motor |
| FR2955635A1 (en) * | 2010-01-27 | 2011-07-29 | Peugeot Citroen Automobiles Sa | HYSTERESIS CENTRIFUGAL CLUTCH WITH OUTER DRUM DRIVING ENTRY, ACCESSORY FACADE AND VEHICLE COMPRISING SUCH A CLUTCH |
| CN102537237A (en) * | 2012-01-11 | 2012-07-04 | 上海瑞尔实业有限公司 | Automatic transmission system for power assembly |
| CN102725555A (en) * | 2010-01-27 | 2012-10-10 | 株式会社F.C.C. | Centrifugal clutch device |
| CN203604486U (en) * | 2013-11-28 | 2014-05-21 | 龙口中宇机械有限公司 | Centrifugal electromagnetic clutch and water pump with same |
| CN104132081A (en) * | 2014-07-22 | 2014-11-05 | 景丽 | Centrifugal clutch |
| CN204267559U (en) * | 2014-08-29 | 2015-04-15 | 龙口澳雷樽传动机械有限公司 | Aerodynamic centrifugal formula clutch |
| JP2016145645A (en) * | 2016-04-01 | 2016-08-12 | 株式会社ジェイテクト | One-way clutch |
| CN205956252U (en) * | 2016-07-29 | 2017-02-15 | 王学江 | Centrifugal -type clutch |
| CN106763297A (en) * | 2016-12-29 | 2017-05-31 | 浙江超强机械有限公司 | A kind of centrifugal clutch of fast clutch |
| CN107314057A (en) * | 2017-08-31 | 2017-11-03 | 芜湖禾丰离合器有限公司 | It is a kind of from gain centrifugal clutch |
| CN108343687A (en) * | 2018-01-16 | 2018-07-31 | 咸阳超越离合器有限公司 | A kind of brake shoe formula centrifugal clutch |
| CN109236887A (en) * | 2018-09-30 | 2019-01-18 | 厦门南超机械有限公司 | A kind of clutch |
| CN109268402A (en) * | 2018-09-30 | 2019-01-25 | 厦门南超机械有限公司 | A kind of clutch and its installation method with follower |
| CN109812518A (en) * | 2019-02-18 | 2019-05-28 | 芜湖市中亚汽车制动元件有限公司 | Low rotation speed large torque band dust collect plant centrifugal clutch |
| CN110185720A (en) * | 2019-05-28 | 2019-08-30 | 厦门南超机械有限公司 | A kind of centrifugal clutch |
| CN110259850A (en) * | 2019-05-28 | 2019-09-20 | 厦门南超机械有限公司 | A kind of self-locking centrifugal clutch |
| CN210739188U (en) * | 2019-09-29 | 2020-06-12 | 厦门南超机械有限公司 | Centrifugal clutch with middle shaft connected with load |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6857515B2 (en) * | 2003-04-22 | 2005-02-22 | The Hilliard Corporation | Centrifugal clutch |
-
2019
- 2019-09-29 CN CN201910934015.8A patent/CN110671443B/en active Active
Patent Citations (31)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH237836A (en) * | 1943-07-22 | 1945-05-31 | Stihl Andreas | Centrifugal clutch. |
| GB720168A (en) * | 1950-05-16 | 1954-12-15 | Eickhoff Geb | Improvements in or relating to centrifugal clutches |
| BE670068A (en) * | 1964-11-17 | 1966-01-17 | ||
| GB1094770A (en) * | 1966-10-03 | 1967-12-13 | Richard Mcintire Wyman | Centrifugal clutch |
| GB1184499A (en) * | 1966-10-07 | 1970-03-18 | Fichtel & Sachs Ag | Improvements in or relating to Centrifugal Clutches. |
| GB1418132A (en) * | 1972-02-15 | 1975-12-17 | Stihl Maschf Andreas | Motor chain saw |
| DE3009853B1 (en) * | 1980-03-14 | 1981-07-30 | Robert Scheuffele GmbH & Co KG, 7120 Bietigheim-Bissingen | Centrifugal clutch |
| WO1996000352A1 (en) * | 1994-06-24 | 1996-01-04 | Hydrostress Ag | Centrifugal clutch and a floor-joint cutter |
| JPH1122746A (en) * | 1997-07-07 | 1999-01-26 | Kyowa Gokin Kk | Synchronous device for transmission |
| CN1516788A (en) * | 2000-03-28 | 2004-07-28 | �ձ�������ʽ���� | One-way clutch built-in type rotation transmission device |
| CN2643070Y (en) * | 2003-08-08 | 2004-09-22 | 重庆力帆实业（集团）有限公司 | Centrifugal friction clutch |
| DE102005022457A1 (en) * | 2005-05-14 | 2006-11-30 | Zf Friedrichshafen Ag | Electromagnetically switching coupling for a liquid pump of a vehicle comprises an input part, an electromagnet, a pump shaft and a coupling mechanism acting between the input part and the pump shaft and supported by a spring force |
| TW200726927A (en) * | 2005-10-27 | 2007-07-16 | Honda Motor Co Ltd | Centrifugal clutch |
| FR2955635A1 (en) * | 2010-01-27 | 2011-07-29 | Peugeot Citroen Automobiles Sa | HYSTERESIS CENTRIFUGAL CLUTCH WITH OUTER DRUM DRIVING ENTRY, ACCESSORY FACADE AND VEHICLE COMPRISING SUCH A CLUTCH |
| CN102725555A (en) * | 2010-01-27 | 2012-10-10 | 株式会社F.C.C. | Centrifugal clutch device |
| CN101764463A (en) * | 2010-03-04 | 2010-06-30 | 宁波北斗科技有限公司 | Center shaft type electromobile motor |
| CN102537237A (en) * | 2012-01-11 | 2012-07-04 | 上海瑞尔实业有限公司 | Automatic transmission system for power assembly |
| CN203604486U (en) * | 2013-11-28 | 2014-05-21 | 龙口中宇机械有限公司 | Centrifugal electromagnetic clutch and water pump with same |
| CN104132081A (en) * | 2014-07-22 | 2014-11-05 | 景丽 | Centrifugal clutch |
| CN204267559U (en) * | 2014-08-29 | 2015-04-15 | 龙口澳雷樽传动机械有限公司 | Aerodynamic centrifugal formula clutch |
| JP2016145645A (en) * | 2016-04-01 | 2016-08-12 | 株式会社ジェイテクト | One-way clutch |
| CN205956252U (en) * | 2016-07-29 | 2017-02-15 | 王学江 | Centrifugal -type clutch |
| CN106763297A (en) * | 2016-12-29 | 2017-05-31 | 浙江超强机械有限公司 | A kind of centrifugal clutch of fast clutch |
| CN107314057A (en) * | 2017-08-31 | 2017-11-03 | 芜湖禾丰离合器有限公司 | It is a kind of from gain centrifugal clutch |
| CN108343687A (en) * | 2018-01-16 | 2018-07-31 | 咸阳超越离合器有限公司 | A kind of brake shoe formula centrifugal clutch |
| CN109236887A (en) * | 2018-09-30 | 2019-01-18 | 厦门南超机械有限公司 | A kind of clutch |
| CN109268402A (en) * | 2018-09-30 | 2019-01-25 | 厦门南超机械有限公司 | A kind of clutch and its installation method with follower |
| CN109812518A (en) * | 2019-02-18 | 2019-05-28 | 芜湖市中亚汽车制动元件有限公司 | Low rotation speed large torque band dust collect plant centrifugal clutch |
| CN110185720A (en) * | 2019-05-28 | 2019-08-30 | 厦门南超机械有限公司 | A kind of centrifugal clutch |
| CN110259850A (en) * | 2019-05-28 | 2019-09-20 | 厦门南超机械有限公司 | A kind of self-locking centrifugal clutch |
| CN210739188U (en) * | 2019-09-29 | 2020-06-12 | 厦门南超机械有限公司 | Centrifugal clutch with middle shaft connected with load |
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| CN110671443A (en) | 2020-01-10 |
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Address after: 361023 No. 8, kengping Road, Guankou Town, Jimei District, Xiamen City, Fujian Province Applicant after: XIAMEN SOUTH SUPER MACHINERY Co.,Ltd. Address before: 361023 north side of the first floor of No. 110 (plant 3), Shanmei Road, Jimei District, Xiamen City, Fujian Province Applicant before: XIAMEN SOUTH SUPER MACHINERY Co.,Ltd. |
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