CN112963465B - Rod type clutch based on centrifugal force and working method thereof - Google Patents
Rod type clutch based on centrifugal force and working method thereof Download PDFInfo
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- CN112963465B CN112963465B CN202110266852.5A CN202110266852A CN112963465B CN 112963465 B CN112963465 B CN 112963465B CN 202110266852 A CN202110266852 A CN 202110266852A CN 112963465 B CN112963465 B CN 112963465B
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- connecting rod
- ball
- rod
- clutch
- main shaft
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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
- F16D43/06—Automatic clutches actuated entirely mechanically controlled by angular speed with centrifugal masses actuating axially a movable pressure ring or the like
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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
- F16D43/20—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
- F16D43/21—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members
- F16D43/213—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members with axially applied torque-limiting friction surfaces
- F16D43/215—Automatic clutches actuated entirely mechanically controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure with friction members with axially applied torque-limiting friction surfaces with flat friction surfaces, e.g. discs
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/108—Structural association with clutches, brakes, gears, pulleys or mechanical starters with friction clutches
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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
- F16D2300/00—Special features for couplings or clutches
- F16D2300/02—Overheat protection, i.e. means for protection against overheating
- F16D2300/021—Cooling features not provided for in group F16D13/72 or F16D25/123, e.g. heat transfer details
- F16D2300/0212—Air cooling
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Power Engineering (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The invention relates to a rod type clutch based on centrifugal force and a working method thereof, belonging to the technical field of clutches. The invention can automatically engage the clutch device when the motor reaches a certain working speed after being started, the engaging speed can be adjusted according to the actual machine requirement, the engagement can be realized by filling different types of liquid into the ball body, when the friction torque generated on the engaging surface of the clutch device is large enough, the load is driven to rotate together, and the motion and the torque output by the motor are transmitted to the load, thereby achieving the purpose of connecting the shaft.
Description
Technical Field
The invention relates to a rod type clutch based on centrifugal force and a working method thereof, belonging to the technical field of clutches.
Background
In mechanical transmission, a clutch is a common component, and the clutch can separate or connect a transmission system at any time during the operation of the clutch, but the clutch generally needs an operating mechanism, and is roughly divided into two types according to the operating energy of the clutch, namely a manual clutch and a power-assisted clutch.
Disclosure of Invention
The invention provides a rod clutch based on centrifugal force and a working method thereof, aiming at the defects in the prior art, the rod clutch can be automatically jointed when a motor is started and reaches a certain working rotating speed, the jointing speed can be adjusted according to the actual machine requirement, the joint can be realized by filling different types of liquid (such as water or mercury) into a ball body, when the friction torque generated on the joint surface of the clutch is large enough, the load is driven to rotate together, the motion and the torque output by the motor are transmitted to the load, and the purpose of connecting a shaft is achieved.
The invention adopts the following technical scheme:
a rod clutch based on centrifugal force comprises a main shaft, wherein a balance weight wheel, a speed regulating device and a clutch device are arranged on the main shaft;
the lower end of the main shaft is connected with the power end to enable the main shaft to rotate along the circumferential direction, and the counterweight wheel is fixedly connected with the main shaft and is positioned at the lower end of the main shaft;
the speed regulation device comprises a sphere A, a sphere B, a ball connecting rod A, a ball connecting rod B, a connecting rod A, a connecting rod B and a limiting device, wherein the sphere A and the sphere B are identical in structure and symmetrically distributed, the ball connecting rod A and the ball connecting rod B are L-shaped and respectively comprise a long rod and a short rod, an included angle between the long rod and the short rod is 90 degrees, one end of the long rod of the ball connecting rod A and one end of the long rod of the ball connecting rod B are respectively fixedly connected with the upper ends of the sphere A and the sphere B, the other ends of the long rods of the ball connecting rod A and the ball connecting rod B, which are close to the short rods, are hinged to the upper end of the main shaft through a pin shaft D, specifically, the upper end of the main shaft is provided with a round hole, the ball connecting rod A and the ball connecting rod B are also provided with round holes, the pin D penetrates through the round holes to realize rotary connection, so that the ball connecting rod A/B can rotate around the pin shaft D, and the short rod end parts of the ball connecting rod A and the ball connecting rod B are respectively connected with the connecting rod A and the connecting rod B through a pin shaft C, The other ends of the connecting rod A and the connecting rod B are hinged with the clutch device through a pin shaft B; the limiting device is used for limiting the included angle range between the ball connecting rod A and the ball connecting rod B when the main shaft rotates;
the clutch device comprises an upper clutch and a lower clutch, the upper clutch comprises a squirrel-cage cylinder and a connecting shaft connected with the squirrel-cage cylinder, and a pin hole is formed in the connecting shaft and used for being connected with a load;
the lower clutch comprises a friction plate and a moving rod connected with the friction plate, the friction plate is disc-shaped, the friction plate is positioned in the cylinder and can rotate and move up and down in the cylinder, when the friction plate is contacted with the lower end face of the cylinder, the clutch device is connected to transfer motion, the moving rod penetrates out of the squirrel-cage-shaped cylinder, and the bottom of the moving rod is connected with one end of the connecting rod A and one end of the connecting rod B through a pin shaft B.
In the invention, the moving rod of the lower clutch extends into the cylinder from the lower end surface of the cylinder, so that the thickness of the lower end surface of the cylinder can be properly increased to ensure that the contact surface is as large as possible and the deviation is prevented in order to ensure that the moving rod and the lower end surface of the cylinder do not deviate during mutual movement, and the thickness of the lower end surface of the cylinder can be flexibly set according to requirements.
Preferably, the 90-degree angle openings of the club connecting rod A and the club connecting rod B face the opposite sides of the hollow sphere connected with the club connecting rod A respectively, namely the 90-degree angle opening of the club connecting rod A faces one side of the sphere B, the 90-degree angle opening of the club connecting rod B faces one side of the sphere A, and when the included angle between the long rods of the club connecting rod A and the club connecting rod B is larger, the pin shaft C moves downwards to drive the connecting rod A, the connecting rod B and the pin shaft B to move downwards.
Preferably, spheroid A and spheroid B are hollow sphere to all be provided with and annotate the liquid mouth and unload the liquid mouth, annotate the liquid mouth and be located hollow sphere upper portion, unload the liquid mouth and be located hollow sphere lower part, spheroid A and spheroid B are the same and inside is filled with liquid, can change the liquid of different density and change the quality of spheroid A/spheroid B.
The liquid filling port and the liquid discharging port can be opened or closed by adopting a mode of connecting the liquid filling port and the liquid discharging port by bolts in a threaded manner, and the ball A/the ball B have different masses, so that the clutch speed is different, the clutch speed is high when the mass is small, and the clutch speed is low when the mass is large.
Preferably, the counterweight wheel is a round wheel, and an arc-shaped groove is formed in the edge of the counterweight wheel;
the counterweight wheel is positioned below the sphere A/the sphere B.
The mass of the counterweight wheel can enable the clutch to stably rotate, can be flexibly set according to the size of the clutch, and is moderate in size, and the arc-shaped groove in the edge of the counterweight wheel can enable the mass of the counterweight wheel to be mainly concentrated at the geometric center of the counterweight wheel during rotation, namely the part where the main shaft is connected with the counterweight wheel, so that the counterweight wheel can rotate more stably.
The balance weight wheel can increase the stability when the clutch rotates, considering that the separation speed can be influenced by the inertia of the balance weight wheel when the shaft is separated from the shaft, but because the ball body A, the ball body B, the liquid in the ball body B and the components such as the ball rod A, the ball rod B and the like are all of mass, when the shaft is separated from the shaft, the downward gravity generated by the ball body A, the ball body B, the liquid in the ball body B, the ball rod A, the ball rod B and the like is enough to separate the clutch device in time to disconnect the shaft from the shaft.
Preferably, the limiting device is in a V shape, the bottom of the limiting device is fixed on the main shaft, the middle parts of two arms of the limiting device are hollowed to form guide slideways, the ball connecting rod A and the ball connecting rod B are respectively positioned in the guide slideways of the two arms of the limiting device, the ball connecting rod A and the ball connecting rod B are always positioned in the guide slideways when swinging, and the length of each guide slideway can limit the motion amplitude of the ball connecting rod A/the ball connecting rod B;
the length of the guide slideway and the position fixed on the main shaft determine the included angle range formed between the ball connecting rod A and the ball connecting rod B, and preferably, after the ball connecting rod A and the ball connecting rod B are installed on the main shaft, the length of the guide slideway satisfies the following conditions: when the ball connecting rod A/B rotates to the lowest point of the guide slideway, the ball A/B has a certain distance with the counterweight wheel, namely the ball A/B is not in contact with the counterweight wheel, so as to prevent abrasion;
the highest point of the guide slideway can be used for controlling the maximum friction torque generated by the upper clutch and the lower clutch when the guide slideway rotates, because the higher the flying of the two spheres A and B, namely the longer the linear distance between the spheres A and B, the larger the axial force finally transmitted to the clutch device, the tighter the upper clutch and the lower clutch are engaged, and the larger the friction torque, therefore, the guide slideway can be fixed on the corresponding position of the main shaft according to the actual requirement to obtain different friction torques, and can also be used as a safety clutch.
Preferably, the bottom of the limiting device is provided with two clamping tiles, one of the clamping tiles and the limiting device are of an integral structure, the other clamping tile is of an independent split structure, and the two clamping tiles are mutually buckled and fasten the limiting device on the main shaft through bolts and nuts.
Preferably, the upper surface and the lower surface of the cylinder and the friction sheet are provided with air holes, so that heat dissipation can be accelerated.
Preferably, the clutch further comprises a reinforcing device, the reinforcing device comprises a reinforcing sleeve and a reinforcing rod, the reinforcing sleeve is sleeved on the moving rod, a U-shaped groove in the vertical direction is formed in the outer surface of the moving rod, a strip-shaped protrusion matched with the U-shaped groove is arranged on the inner surface of the reinforcing sleeve, and the reinforcing sleeve can slide up and down relative to the moving rod due to the fact that the strip-shaped protrusion is matched with the U-shaped groove;
the both sides of uide bushing all are provided with the engaging lug, the stiffener is two, and two stiffener one ends are rotated with two engaging lugs of uide bushing respectively through round pin axle A and are connected, and the other end and the epaxial engaging lug board of two stiffeners rotate to be connected, the position of connecting lug board on the main shaft is located the limiting device top.
The reinforcing device can prevent the connecting rod, the connecting rod and the motion rod from being skewed when transmitting torque and being broken and damaged due to insufficient strength, thereby increasing the reliability of transmitting torque.
Preferably, the upper end of the main shaft and the lower end of the motion rod are both provided with a U-shaped notch, so that the rotation of the connecting rod A/connecting rod B and the connecting rod A/connecting rod B is not influenced.
A working method of the rod clutch based on the centrifugal force comprises the steps that the lower end of a main shaft is connected with a motor, the motor is started after an upper clutch is connected with a load, the main shaft rotates along the circumferential direction under the driving of the motor, a ball body A and a ball body B gradually move outwards under the action of the centrifugal force along with the increase of the rotating speed, the speed of the movement is controlled by the types of liquid (such as water and mercury) filled in the ball body A/the ball body B, the speed of connection and separation is slow when the density of the liquid is high, the angle between a long rod of the rod connecting rod A and a long rod of the rod connecting rod B is gradually increased because the ball body A is fixedly connected with the rod connecting rod A and the ball body B is fixedly connected with the rod connecting rod B, one end of a short rod of the rod connecting rod A and one end of the short rod of the rod connecting rod B are both moved downwards, and the rod A/the rod B is pulled downwards, the pin B moves downwards, the moving rod slides downwards relative to the reinforcing sleeve, so that the friction plate moves downwards, when the friction plate is contacted with the lower end surface of the cylinder and reaches enough friction force, the movement is transmitted,
when the rotational speed of motor descends, the rotational speed of main shaft descends, spheroid A and spheroid B reduce apart from gradually under the action of gravity, link the contained angle between club A and the stock of club B and reduce gradually, link the one end that the quarter butt of club A and connecting rod A are connected, and link the equal upward movement of one end that the quarter butt of club B and connecting rod B are connected, just push up connecting rod A/connecting rod B, round pin axle B upward movement, the motion pole upwards slides for the reinforcement sleeve, thereby the friction disc upward movement, the lower terminal surface of friction disc and drum at this moment is detached, do not transmit the motion. It is worth noting that when the motor does not operate or the rotating speed of the main shaft continuously decreases, the friction plate of the lower clutch and the upper end face of the upper clutch are ensured not to be contacted all the time.
In the prior art, because the starting current of the motor is larger or the starting torque is very large, the rotating speed of the motor cannot be normally improved, so that the overheating phenomenon occurs;
in addition, the upper clutch and the lower clutch are slowly engaged, the force transmitted between the upper clutch and the lower clutch is gradually increased to reach a set value and is not transmitted instantly, the motor drives the main shaft and the structure on the main shaft to rotate firstly, and then the clutch device is gradually engaged, so that the dynamic load of the clutch device is small.
The invention is not described in detail in the prior art.
The invention has the beneficial effects that:
1. the clutch device comprises an upper clutch and a lower clutch, and the engagement and the disengagement of the clutch device are realized through the engagement and the disengagement of a friction plate of the lower clutch and the lower end surface of a cylinder of the upper clutch.
2. The invention can obtain different clutch speeds by changing the types of the liquid in the ball A and the ball B.
3. The main shaft of the invention is provided with the balance weight wheel, so that the stability of the invention during working can be improved.
4. The invention can be used in a machine with frequent starting, the motor can be gradually connected into a load, and when the starting current of the motor is larger or the starting torque is larger, the invention can avoid the overheating of the motor or prevent a transmission mechanism from bearing a large dynamic load.
5. The reinforcing device of the invention can prevent the connecting rod, the connecting rod and the moving rod from being skewed and broken and damaged due to insufficient strength when transmitting torque, thereby increasing the reliability of the transmission torque.
6. The clutch speed of the clutch of the invention depends on the centrifugal force, the maximum centrifugal force is regulated and controlled by the limiting device, and when the load end is overloaded, the clutch slips, so that the clutch also has the function of a safety clutch.
Drawings
FIG. 1 is a schematic view of the overall construction of a centrifugal force based lever clutch of the present invention;
FIG. 2 is a schematic view of a clutch device according to the present invention;
FIG. 3 is a schematic view of a restraining device according to the present invention;
FIG. 4 is a schematic structural diagram of a sphere A according to the present invention;
FIG. 5 is a schematic view of the construction of the reinforcement sleeve of the present invention;
the hydraulic driving device comprises a main shaft 1, a counterweight wheel 2, a ball body A3, a ball body B3, a liquid injection port 31, a liquid discharge port 32, a ball connecting rod A4, a ball connecting rod B4, a limiting device 5, a reinforcing rod 6, a connecting rod A7, a connecting rod B7, a reinforcing sleeve 8, a lower clutch 9, a friction plate 91, a moving rod 92, an upper clutch 10, a cylinder 101, a connecting shaft 102, a pin port 103, a pin shaft A11, a pin shaft B12, a pin shaft C13, a pin shaft D14, a guide slideway 15, a clamping tile 16, a U-shaped groove 17 and an air hole 18.
The specific implementation mode is as follows:
in order to make the technical problems, technical solutions and advantages of the present invention more apparent, the following detailed description is given with reference to the accompanying drawings and specific examples, but not limited thereto, and the present invention is not described in detail and is in accordance with the conventional techniques in the art.
Example 1:
a rod clutch based on centrifugal force is shown in figures 1-5 and comprises a main shaft 1, wherein a balance weight wheel 2, a speed regulating device and a clutch device are arranged on the main shaft 1;
the lower end of the main shaft 1 is connected with the power end, so that the main shaft 1 rotates along the circumferential direction, and the counterweight wheel 2 is fixedly connected with the main shaft 1 and is positioned at the lower end of the main shaft 1;
the speed regulating device comprises a sphere A3, a sphere B3 ', a ball connecting rod A4, a ball connecting rod B4 ', a connecting rod A7, a connecting rod B7 ' and a limiting device 5, wherein the sphere A3 and the sphere B3 ' are in the same structure and are symmetrically distributed, the ball connecting rod A4 and the ball connecting rod B4 ' are in L shapes and respectively comprise a long rod and a short rod, an included angle between the long rod and the short rod is 90 degrees, one end of the long rod of the ball connecting rod A4 and one end of the long rod of the ball connecting rod B4 ' are respectively fixedly connected with the upper ends of the sphere A3 and the sphere B3 ', the other ends of the long rods of the ball connecting rod A4 and the ball connecting rod B4 ' are hinged with the upper end of the main shaft 1 through a pin shaft D14 near the short rod, specifically, a round hole is arranged at the upper end of the main shaft 1, and round holes are also arranged on the ball connecting rod A4 and the ball connecting rod B4 ', the pin shaft D14 passes through the round hole to realize rotary connection, so that the connecting rod A/B can rotate around the pin shaft D14, the short rod ends of the connecting rod A4 and the connecting rod B4 ' are respectively hinged with the connecting rod A7 and the connecting rod B7 ' through a pin shaft C13, and the other ends of the connecting rod A7 and the connecting rod B7 ' are hinged with the clutch device through a pin shaft B12; the limiting device 5 is used for limiting the included angle range between the cue connecting rod A4 and the cue connecting rod B4' when the main shaft 1 rotates;
the clutch device comprises an upper clutch 10 and a lower clutch 9, as shown in fig. 2, the upper clutch 10 comprises a squirrel-cage cylinder 101 and a connecting shaft 102 connected with the same, and the connecting shaft 102 is provided with a pin opening 103 for connecting with a load;
the lower clutch 9 includes a friction plate 91 and a moving rod 92 connected thereto, the friction plate 91 is disc-shaped, the friction plate 91 is located in a cylinder 101 and can rotate and move up and down in the cylinder, when the friction plate 91 contacts with the lower end face of the cylinder, the clutch is engaged to transmit the movement, the moving rod 92 penetrates out of the squirrel-cage-shaped cylinder, and the bottom of the moving rod is connected with one end of a connecting rod A7 and one end of a connecting rod B7' through a pin B12.
In the invention, the moving rod of the lower clutch extends into the cylinder from the lower end surface of the cylinder, so that the thickness of the lower end surface of the cylinder can be properly increased to ensure that the contact surface is as large as possible and the deviation is prevented in order to ensure that the moving rod and the lower end surface of the cylinder do not deviate during mutual movement, and the thickness of the lower end surface of the cylinder can be flexibly set according to requirements.
Example 2:
a centrifugal force based rod clutch is structurally shown in an example 1, except that 90-degree openings of a connecting rod A4 and a connecting rod B4 ' face to the opposite sides of a hollow ball body connected with the connecting rod A4, namely the 90-degree opening of the connecting rod A4 faces to the side of a ball body B3 ', the 90-degree opening of the connecting rod B4 ' faces to the side of the ball body A3, and when an included angle between long rods of the connecting rod A4 and the connecting rod B4 ' is larger, a pin shaft C13 moves downwards, so that a connecting rod A7, a connecting rod B7 ' and a pin shaft B12 are driven to move downwards.
Example 3:
a centrifugal force based rod clutch is constructed as shown in embodiment 2, except that the ball A3 and the ball B3 ' are hollow balls and are provided with a liquid filling port 31 and a liquid discharging port 32, the liquid filling port 31 is positioned at the upper part of the hollow ball, the liquid discharging port 32 is positioned at the lower part of the hollow ball, the volume of the ball A3 and the volume of the ball B3 ' are equal, the ball A and the ball B3 ' are filled with liquid, and the liquid with different densities can be replaced to change the mass of the ball A/the ball B.
The liquid filling port 31 and the liquid discharging port 32 are both opened or closed by adopting a mode of connecting the liquid filling port and the liquid discharging port by bolts through threads, and the ball A/the ball B have different masses, so that the clutch speed is different, the clutch speed is high when the mass is small, and the clutch speed is low when the mass is large.
Example 4:
a centrifugal force-based lever clutch constructed as shown in example 3 except that the weight wheel 2 is a circular wheel and has arc-shaped grooves formed on its edge;
the weight wheel 2 is positioned below the ball body A/B.
The mass of the counterweight wheel 2 can enable the clutch to stably rotate, can be flexibly set according to the size of the clutch, and is moderate in size, and the arc-shaped groove at the edge of the counterweight wheel can enable the mass of the counterweight wheel to be mainly concentrated at the geometric center of the counterweight wheel during rotation, namely the part where the main shaft is connected with the counterweight wheel, so that the counterweight wheel can rotate more stably.
The weight wheel 2 can increase the stability when the clutch rotates, considering that the separation speed can be influenced by the inertia of the weight wheel when the shaft is separated from the shaft, but because the ball body A, the ball body B, the liquid in the ball body B and the components such as the ball rod A, the ball rod B and the like are all of mass, when the shaft is separated from the shaft, the downward gravity generated by the ball body A, the ball body B, the liquid in the ball body B, the ball rod A, the ball rod B and the like is enough to separate the clutch device in time to disconnect the shaft from the shaft.
Example 5:
a rod clutch based on centrifugal force is structurally shown in an embodiment 4, and is different in that a limiting device 5 is V-shaped, the bottom of the limiting device 5 is fixed on a main shaft 1, the middle parts of two arms of the limiting device 5 are hollowed to form guide slideways 15, a connecting rod A4 and a connecting rod B4 'are respectively positioned in the guide slideways 15 of the two arms of the limiting device, the connecting rod A4 and the connecting rod B4' are always positioned in the guide slideways 15 when swinging, and the length of each guide slideway 15 can limit the movement amplitude of the connecting rod A/the connecting rod B;
the length of the guide chute 15 and the position fixed on the main shaft determine the included angle range formed between the club connecting rod A and the club connecting rod B, and preferably, after the club connecting rod A and the club connecting rod B are installed on the main shaft 1, the length of the guide chute 15 satisfies the following conditions: when the connecting rod A/B rotates to the lowest point of the guide slideway 15, the ball A/B has a certain distance with the counterweight wheel 2, namely the ball A/B does not contact with the counterweight wheel to prevent abrasion;
the highest point of the guide slideway 15 can be used for controlling the maximum friction torque generated by the upper clutch and the lower clutch when the invention is in rotating operation, because the higher the flying of the two balls A and B, namely the longer the linear distance between the balls A and B, the larger the axial force finally transmitted to the clutch device, the tighter the upper clutch and the lower clutch are engaged, and the larger the friction torque, therefore, the guide slideway can be fixed on the corresponding position of the main shaft according to the actual requirement to obtain different friction torques, and can also be used as a safety clutch.
Example 6:
a centrifugal force-based rod clutch is constructed as shown in embodiment 5, except that two clamping tiles 16 are provided at the bottom of the limiting device 5, one of the clamping tiles and the limiting device 5 is of an integral structure, the other clamping tile is of a separate and separate structure, and the two clamping tiles are mutually fastened and fasten the limiting device 5 to a main shaft 1 through bolts and nuts.
Example 7:
a centrifugal force-based lever clutch, constructed as in example 6, except that air holes 18 are formed in the upper and lower surfaces of a cylinder 101 and friction plates to accelerate heat dissipation.
Example 8:
a centrifugal force-based rod clutch, the structure of which is as shown in embodiment 7, except that the clutch further comprises a reinforcing device, the reinforcing device comprises a reinforcing sleeve 8 and a reinforcing rod 6, the reinforcing sleeve 8 is sleeved on a moving rod 92, a U-shaped groove 17 in the vertical direction is formed in the outer surface of the moving rod 92, a strip-shaped protrusion matched with the U-shaped groove is formed in the inner surface of the reinforcing sleeve, and the reinforcing sleeve 8 can slide up and down relative to the moving rod 92 due to the matching of the strip-shaped protrusion and the U-shaped groove 17;
the both sides of reinforcement sleeve 8 all are provided with the engaging lug, and stiffener 6 is two, and two stiffener one ends are rotated with two engaging lugs of reinforcement sleeve respectively through round pin axle A11 and are connected, and the other end and the epaxial engaging lug board of two stiffeners rotate to be connected, the position of connecting lug board on main shaft is located the limiting device top.
The reinforcing device can prevent the connecting rod, the connecting rod and the motion rod from being skewed when transmitting torque and being broken and damaged due to insufficient strength, thereby increasing the reliability of transmitting torque.
Example 9:
a centrifugal force based lever clutch is constructed as shown in example 8 except that the upper end of the main shaft 1 and the lower end of the motion lever 92 are provided with U-shaped notches in order not to affect the rotation of the ball connecting rod A/B and the connecting rod A/B.
Example 10:
a working method of a rod clutch based on centrifugal force comprises the steps that a motor is connected to the lower end of a main shaft 1, after an upper clutch 10 is connected to a load, the motor is started, the main shaft 1 rotates along the circumferential direction under the driving of the motor, a ball A3 and a ball B3 'move outwards gradually under the action of the centrifugal force along with the increase of the rotating speed, the speed of the movement is controlled by the types of liquid (such as water and mercury) filled in the ball A/the ball B, the speed of connection and separation is slow when the density of the liquid is high, the ball A3 is fixedly connected with a connecting rod A4, the ball B3' is fixedly connected with the connecting rod B4 ', the included angle between a long rod of the connecting rod A4 and a long rod of the connecting rod B4' is gradually increased, one end of the connecting rod A4, which is connected with a connecting rod A7, and one end of the connecting rod B4 'which is connected with the connecting rod B7', both move downwards, the link a/link B is pulled down, the pin B12 moves down, the moving rod 92 slides down relative to the reinforcing sleeve 8, and the friction plate 91 moves down, the movement is transmitted when the friction plate 91 comes into contact with the lower end surface of the cylinder 101 and reaches a sufficient frictional force,
when the rotating speed of the motor is reduced, the rotating speed of the main shaft 1 is reduced, the distance between the ball A3 and the ball B3 'is gradually reduced under the action of gravity, the included angle between the long rod of the connecting ball rod A4 and the long rod of the connecting ball rod B4' is gradually reduced, one end of the short rod of the connecting ball rod A connected with the connecting rod A and one end of the short rod of the connecting ball rod B connected with the connecting rod B are both moved upwards, the connecting rod A/the connecting rod B are pushed upwards, the pin shaft B12 is moved upwards, the moving rod 92 slides upwards relative to the reinforcing sleeve 8, so that the friction plate 91 moves upwards, the friction plate 91 is separated from the lower end face of the cylinder 101 at the moment and does not transfer motion, and the friction plate of the lower clutch and the upper end face of the upper clutch are ensured to be not contacted all the time when the motor does not rotate or the rotating speed of the main shaft is continuously reduced.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims.
Claims (10)
1. A rod clutch based on centrifugal force is characterized by comprising a main shaft, wherein a balance weight wheel, a speed regulating device and a clutch device are arranged on the main shaft;
the lower end of the main shaft is connected with the power end to enable the main shaft to rotate along the circumferential direction, and the counterweight wheel is fixedly connected with the main shaft and is positioned at the lower end of the main shaft;
the speed regulating device comprises a ball A, a ball B, a ball connecting rod A, a ball connecting rod B, a connecting rod A, a connecting rod B and a limiting device, wherein the ball A and the ball B are identical in structure and are symmetrically distributed, the ball connecting rod A and the ball connecting rod B are L-shaped and respectively comprise a long rod and a short rod, an included angle between the long rod and the short rod is 90 degrees, one end of the long rod of the ball connecting rod A and one end of the long rod of the ball connecting rod B are respectively fixedly connected with the upper ends of the ball A and the ball B, the other ends of the long rod of the ball connecting rod A and the ball connecting rod B, which are close to the short rod, are hinged with the upper end of the main shaft through a pin shaft D, the short rod ends of the ball connecting rod A and the ball connecting rod B are respectively hinged with the connecting rod A and the connecting rod B through a pin shaft B, and the other ends of the connecting rod A and the connecting rod B are hinged with the clutch device through a pin shaft B; the limiting device is used for limiting the included angle range between the ball connecting rod A and the ball connecting rod B when the main shaft rotates;
the clutch device comprises an upper clutch and a lower clutch, the upper clutch comprises a squirrel-cage cylinder and a connecting shaft connected with the squirrel-cage cylinder, and a pin hole is formed in the connecting shaft and used for being connected with a load;
the lower clutch comprises a friction plate and a moving rod connected with the friction plate, the friction plate is positioned in the cylinder and can rotate and move up and down in the cylinder, when the friction plate is contacted with the lower end surface of the cylinder, the clutch device is engaged to transfer motion, the moving rod penetrates out of the squirrel-cage-shaped cylinder, and the bottom of the moving rod is connected with one end of the connecting rod A and one end of the connecting rod B through a pin shaft B;
the lower end of the main shaft is connected with the motor, the upper clutch is connected with a load, the motor is started, the main shaft rotates along the circumferential direction under the driving of the motor, the ball body A and the ball body B move outwards gradually under the action of centrifugal force along with the rising of the rotating speed, the ball body A is fixedly connected with the ball connecting rod A, the ball body B is fixedly connected with the ball connecting rod B, an included angle between the long rods of the ball connecting rod A and the ball connecting rod B is gradually increased, one end, connected with the short rod of the ball connecting rod A, of the connecting rod A and one end, connected with the short rod of the ball connecting rod B, of the connecting rod B move downwards, the connecting rod A/the connecting rod B is pulled downwards, the pin shaft B moves downwards, the moving rod slides downwards, the friction plate moves downwards, and when the friction plate is in contact with the lower end face of the cylinder and reaches enough friction force, the movement is transmitted.
2. The centrifugal force based rod clutch of claim 1, wherein the 90 ° openings of the connecting rod A and the connecting rod B are respectively toward the opposite side of the hollow sphere connected with the connecting rod A, namely the 90 ° opening of the connecting rod A is toward the side of the sphere B, the 90 ° opening of the connecting rod B is toward the side of the sphere A, and the pin C moves downwards to drive the connecting rod A, the connecting rod B and the pin B to move downwards when the included angle between the long rods of the connecting rod A and the connecting rod B is larger.
3. A centrifugal force based rod clutch according to claim 2 wherein ball a and ball B are hollow balls and are provided with a liquid filling port located at the upper part of the hollow ball and a liquid discharging port located at the lower part of the hollow ball, the balls a and B being of the same volume and filled with liquid inside, the mass of ball a/ball B being changeable with liquids of different densities.
4. A centrifugal force based rod clutch according to claim 3, wherein the weight wheel is a circular wheel and is provided with arc-shaped grooves on its edge;
the counterweight wheel is positioned below the sphere A/the sphere B.
5. The centrifugal force-based rod clutch according to claim 4, wherein the limiting device is V-shaped, the bottom of the limiting device is fixed on the main shaft, the middle parts of the two arms of the limiting device are hollowed out to form guide slideways, and the connecting rod A and the connecting rod B are respectively positioned in the guide slideways of the two arms of the limiting device;
after the connecting ball rod A and the connecting ball rod B are arranged on the main shaft, the length of the guide slideway meets the following requirements: when the connecting rod A/B rotates to the lowest point of the guide slideway, the ball A/B has a certain distance with the counterweight wheel.
6. The centrifugal force-based rod clutch of claim 5, wherein the bottom of the limiting device is provided with two clamping tiles, one of which is integrally formed with the limiting device, the other of which is separately formed, and the two clamping tiles are engaged with each other and fasten the limiting device to the main shaft by means of bolts and nuts.
7. A centrifugal force based rod clutch according to claim 6, wherein air holes are formed on both the upper and lower surfaces of the cylinder and the friction plate.
8. The centrifugal force based lever clutch of claim 7, wherein the clutch further comprises a reinforcing means, the reinforcing means comprises a reinforcing sleeve and a reinforcing rod, the reinforcing sleeve is sleeved on the moving rod, the outer surface of the moving rod is provided with a U-shaped groove in a vertical direction, the inner surface of the reinforcing sleeve is provided with an elongated protrusion matched with the U-shaped groove, and the elongated protrusion is matched with the U-shaped groove so that the reinforcing sleeve can slide up and down relative to the moving rod;
the both sides of uide bushing all are provided with the engaging lug, the stiffener is two, and two stiffener one ends are rotated with two engaging lugs of uide bushing respectively through round pin axle A and are connected, and the other end and the epaxial engaging lug board of two stiffeners rotate to be connected, the position of connecting lug board on the main shaft is located the limiting device top.
9. The centrifugal force-based rod clutch according to claim 8, wherein the upper end of the main shaft and the lower end of the moving rod are each provided with a U-shaped notch in order not to affect the rotation of the shaft a/shaft B and the link a/link B.
10. A method of operating a centrifugal force based rod clutch as claimed in claim 9, wherein the lower end of the main shaft is connected to the motor, and the motor is started after the upper clutch is connected to the load, the main shaft rotates along the circumferential direction under the driving of the motor, the ball body A and the ball body B gradually move outwards under the action of centrifugal force along with the increase of the rotating speed, because the ball A is fixedly connected with the ball connecting rod A and the ball B is fixedly connected with the ball connecting rod B, the included angle between the long rod of the ball connecting rod A and the long rod of the ball connecting rod B is gradually increased, the short rod of the ball connecting rod A is connected with one end of the connecting rod A, and the end of the connecting rod B connected with the short rod of the connecting rod B moves downwards, so that the connecting rod A/the connecting rod B is pulled downwards, the pin shaft B moves downwards, the moving rod slides downwards relative to the reinforcing sleeve, so that the friction plate moves downwards, and when the friction plate is contacted with the lower end surface of the cylinder and reaches enough friction force, the movement is transmitted;
when the rotational speed of motor descends, the rotational speed of main shaft descends, spheroid A and spheroid B reduce apart from gradually under the action of gravity, link the contained angle between club A and the stock of club B and reduce gradually, link the one end that the quarter butt of club A and connecting rod A are connected, and link the equal upward movement of one end that the quarter butt of club B and connecting rod B are connected, just push up connecting rod A/connecting rod B, round pin axle B upward movement, the motion pole upwards slides for the reinforcement sleeve, thereby the friction disc upward movement, the lower terminal surface of friction disc and drum at this moment is disengaged.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110266852.5A CN112963465B (en) | 2021-03-11 | 2021-03-11 | Rod type clutch based on centrifugal force and working method thereof |
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| CN202110266852.5A CN112963465B (en) | 2021-03-11 | 2021-03-11 | Rod type clutch based on centrifugal force and working method thereof |
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| CN112963465A CN112963465A (en) | 2021-06-15 |
| CN112963465B true CN112963465B (en) | 2022-04-26 |
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Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191221278A (en) * | 1912-09-18 | 1913-08-07 | Sidney Leopold Price | Improvements in or relating to Friction Clutches. |
| JPS4949342U (en) * | 1972-08-05 | 1974-04-30 | ||
| FR2545883B1 (en) * | 1983-05-09 | 1985-08-16 | Roffidal Rene | PRESSURE LIQUID MOTOR FOR CONTROLLING A MACHINE CONSUMING SUCH LIQUID |
| CN2521083Y (en) * | 2001-11-22 | 2002-11-20 | 李钢 | Pedal, centrifugal linkage clutch for motor vehicle |
| US8657090B2 (en) * | 2010-07-22 | 2014-02-25 | Tai-Her Yang | Clutch actuated by initial limit-torque sliding damping |
| CN102619904B (en) * | 2012-02-16 | 2014-07-02 | 汤斌 | Mechanical automatic clutch |
| US9157494B2 (en) * | 2013-08-07 | 2015-10-13 | Honeywell International Inc. | Centrifugal engagement and disengagement drive systems |
| JP6392594B2 (en) * | 2014-09-09 | 2018-09-19 | 川崎重工業株式会社 | Centrifugal clutch |
| CN106704409B (en) * | 2017-03-03 | 2018-11-09 | 中国科学院光电技术研究所 | A kind of single input transmission device with clutch function |
| KR102399477B1 (en) * | 2017-07-28 | 2022-05-18 | 현대자동차주식회사 | Apparatus for auto shifting of vehicle |
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