CN208831628U - One kind being based on spring controlled transmission mechanism - Google Patents
One kind being based on spring controlled transmission mechanism Download PDFInfo
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- CN208831628U CN208831628U CN201821646341.6U CN201821646341U CN208831628U CN 208831628 U CN208831628 U CN 208831628U CN 201821646341 U CN201821646341 U CN 201821646341U CN 208831628 U CN208831628 U CN 208831628U
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Abstract
The utility model belongs to transmission mechanism technical field, more particularly to it is a kind of based on spring controlled transmission mechanism, it includes output shaft, drive mounting shell, input shaft, cylinder is installed, friction block, the transmission mechanism of the utility model design, suitable for loading in mechanism certain and that output revolving speed is certain, the transmission mechanism that people can select critical speed of different sizes according to the different demands of mechanism, input shaft drives output shaft to rotate by the friction of three friction blocks and output shaft in the utility model, and there is the first spring between three friction blocks and corresponding fixed block, first spring can be compressed, i.e. when the load on output shaft is larger, output shaft will extrusion friction block make that slipping phenomenon occurs between friction block and output shaft, friction block will not continue to driving output shaft rotation, prevent that output axle load is larger and by input shaft It is stuck, so that inputting the driving motor of axis connection since it is desired that paying compared with large driving force and causing to overheat, driving motor is burnt out.
Description
Technical field
The utility model belongs to transmission mechanism technical field, more particularly to a kind of based on spring controlled transmission mechanism.
Background technique
Transmission mechanism is that power is transmitted to another part from a part of machine, and machine or machine part is made to move or transport
The component or mechanism turned is known as transmission mechanism.Traditional transmission mechanism in use, when the load on output shaft is larger very
And input shaft to when being stuck, input shaft needs to pay biggish driving force just to drive output shaft to rotate or be stuck, i.e.,
The driving motor needs of connection are paid compared with large driving force or are stuck, and the driving force has exceeded driving motor and can normally export
Driving force, go down to make driving motor to lead to over-heat inside in the case where long-time works overloadingly and burnt out in this way.
The utility model design it is a kind of solved the problems, such as based on spring controlled transmission mechanism it is as above.
Utility model content
To solve drawbacks described above in the prior art, the utility model discloses one kind and is based on spring controlled transmission mechanism,
It adopts the following technical solutions to realize.
One kind be based on spring controlled transmission mechanism, it is characterised in that: it include output shaft, driving mounting shell, input shaft,
Friction block, fixed block, first gear, the first rack gear, installation cylinder, fixed ring, fixed link, the first mounting groove, the second mounting groove,
Third mounting groove, the 4th mounting groove, the 5th mounting groove, the 6th mounting groove, ring gear mounting groove, ring gear, the second rack gear, the first bullet
Spring, first rotating shaft, the second rack gear, the second shaft, friction pulley, third gear, the first leaf spring, third shaft, limit plate, wherein driving
One end of dynamic mounting shell has circular shaft bore, and the other end of mounting shell is driven to be equipped with input shaft；Periphery last week of fixed ring
To equably installation there are three fixed link, fixed ring is mounted on the inside of driving mounting shell by three fixed links, and close to defeated
Enter axis；The axis hole nesting that one end of output shaft passes through on driving mounting shell is mounted in fixed ring, and the other end of output shaft is located at
Drive the outside of mounting shell.
The middle position for installing cylinder has circular shaft bore, circumferential on the inner headed face of circular shaft bore equably to open that there are three the
One mounting groove, the structure opened on three the first mounting grooves is identical, for any one in three the first mounting grooves, first
The side of mounting groove is provided with the 5th mounting groove, and the side of the 5th mounting groove is provided with the 6th mounting groove, and the side of the 6th mounting groove is opened
There is the second mounting groove, the other side of the first mounting groove is provided with the 4th mounting groove, and the side of the 4th mounting groove is provided with third mounting groove.
It is provided with ring gear mounting groove on installation cylinder, ring gear mounting groove is communicated with three third mounting grooves；Installation cylinder is fixed
It is mounted on the inside of driving mounting shell.
The structure installed on three the first mounting grooves is identical, for any one in three the first mounting grooves, Gu
Determine the upside that block is mounted on the first mounting groove；The lower end of friction block has arcuate friction surface, and the downside of friction block has step surface,
Friction block is mounted on the downside of the first mounting groove, and the downside of friction block and output shaft frictional fit, friction block and fixed block it
Between the first spring is installed；Second rack gear is mounted on the side of fixed block, and the 5th opened on the second rack gear and installation cylinder
Mounting groove and the cooperation of the 6th mounting groove；The both ends of second shaft are mounted on front and back two in the second mounting groove opened on installation cylinder
In the round hole that side is opened；Third gear is mounted on one end of the second shaft, and third gear is engaged with the second rack gear；Friction pulley peace
Mounted in the other end of the second shaft；One end of third shaft is mounted on the side of the second mounting groove；One end of limit plate has
The other end of pin hole, limit plate has arcwall face, and limit plate is mounted in third shaft by pin hole, and limit plate has arc
The one end in face and friction pulley frictional fit；First leaf spring, the first leaf spring are installed between limit plate and the side of the second mounting groove
One end be mounted on the side of the second mounting groove, the other end of the first leaf spring is mounted on one side of the limit plate backwards to friction pulley
On；One end of third rack gear is mounted on the other side of fixed block, and the 4th mounting groove opened on third rack gear and installation cylinder
Cooperation, the other end position of third rack gear and friction block are appeared on the stage the downside of terrace；The both ends of first rotating shaft are mounted on third mounting groove
Two sides on；First gear is mounted in first rotating shaft, and first gear is engaged with third rack gear；In normal state, third
Rack gear and friction block appear on the stage terrace downside between have certain interval.
Ring gear is mounted in ring gear mounting groove, and ring gear is engaged with three first gears.
Above-mentioned first spring is constantly in compression Pre strained state.
As the further improvement of this technology, the lower end of above-mentioned friction block has friction rubber；Limit plate has arcwall face
One end have friction rubber.
As the further improvement of this technology, above-mentioned first spring is compressed spring.
As the further improvement of this technology, connected between above-mentioned output shaft and fixed ring by bearing.
As the further improvement of this technology, above three fixed link is fixedly mounted on driving installation by welding
On shell inner headed face.
As the further improvement of this technology, the wearability of above-mentioned friction block is lower than the wearability of output shaft.
In the utility model when the second rack gear moves down, the second rack gear will drive the rotation of third gear, third gear
It will drive the second shaft rotation for installing it, the rotation of the second shaft drives friction pulley rotation mounted thereto, and friction pulley rotates
Limit plate engaged therewith, which will be squeezed, makes the one end being engaged on limit plate with friction pulley away from the one of friction pulley
Side oscillation, limit plate swing will compress the first leaf spring, and when the second rack gear moves up, the second rack gear will drive third gear
Rotation, third gear will drive the second shaft rotation for installing it, and the rotation of the second shaft drives friction rotation mounted thereto
Dynamic, friction pulley rotation will squeeze limit plate engaged therewith and make the one end being engaged on limit plate with friction pulley towards leaning on
One side oscillation of nearly friction pulley, but limit plate is in close contact under the action of the first leaf spring with friction pulley, i.e., limit plate can not
It can cannot be moved up towards the side oscillation close to friction pulley, i.e. the second rack gear, pass through friction pulley, third gear, limit plate
Unidirectional position-limiting action is played to the second rack gear with the first leaf spring, i.e. the second rack gear can only move down, and cannot move up.
Since the first spring is constantly in compression Pre strained state in the utility model, fixed block is mounted on corresponding first installation
The upper side of the upside of slot, the first mounting groove plays position-limiting action to it, i.e., in normal state, friction block is in the first spring
Effect is lower to have certain friction pressure between output shaft, and when output shaft rotation, output shaft will drive driving mounting shell and turn
Dynamic, driving mounting shell rotation drives the installation cylinder rotation for installing it, and installation cylinder rotation drives three friction blocks around output
Axis rotation, three friction blocks band driven input shaft will be rotated around output shaft rotation under the action of the friction pressure, i.e., just
Under normal state, output shaft can be rotated with driven input shaft；When three friction blocks are rotated around output shaft, three friction blocks will
By a centrifugal force, under the action of the centrifugal force, three friction pressures between friction block and output shaft will become smaller, defeated
Driving force between shaft and three friction blocks will die down, so the transmission mechanism is suitable for loading centainly and export revolving speed one
In fixed mechanism；Select critical speed suitable for the transmission mechanism of the mechanism according to institution requests before the use, when critical turn
After fast W is selected, when input speed is less than critical speed W, three not will do it skidding between friction block and output shaft, input
Axis normally can drive output shaft to rotate, when input speed is greater than critical speed W smaller value, three friction blocks and output shaft
Between just will do it skidding, input shaft normally cannot drive output shaft to rotate；When input speed is larger greater than critical speed W
When value, three will disengage cunning between friction block and output shaft, input shaft cannot drive output shaft to rotate；So being driven selecting
When mechanism, transmission mechanism of the input speed less than critical W is selected according to institution requests.
In the utility model when the driving mechanism after prolonged use, three friction blocks will be worn, so that three
For a friction block to close to the movement of the side of output shaft, three friction block movements will make three the first springs to three friction blocks
It obtains preload pressure to die down, output shaft drives input shafts to rotate to be driven and will weaken by three friction blocks, this in order to prevent
Happen, transmission mechanism after a period of use, i.e., when the step surface of friction block and third rack gear soon contact, to the biography
Motivation structure carry out correction process, in correcting process, first control input shaft velocity of rotation so that input shaft have one compared with
High revolving speed, i.e. three friction blocks have a higher revolving speed, and the centrifugal force that three friction blocks are subject to is larger, and three are rubbed at this time
Cleaning block becomes larger far from output shaft, the pressure of three the first springs, then stops input shaft rotation rapidly, three friction blocks are in correspondence
Will be quickly mobile towards output shaft side under the elastic force effect of first spring, three friction blocks are moved through towards output shaft side
Cheng Zhong, when third rack gear is with the step face contact of corresponding friction block, friction block movement will make third rack gear mobile, the
The mobile fixed block that just will drive of three rack gears is mobile towards output shaft side, after friction block, which is moved to, to be contacted again with output shaft,
Fixed block continues under effect of inertia towards the movement of output shaft side, and fixed block movement will squeeze the first spring, so that first
Spring-compressed friction block, so that there is certain friction pressure between friction block and output shaft, after fixed block stops mobile, Gu
Determining block will not pass through under the action of friction pulley, third gear, limit plate and the first leaf spring to far from output axis direction movement
First spring makes have certain friction pressure between friction block and output shaft, and in this case, input shaft can continue
Output shaft rotation is driven, and the abrasion that friction block is subject to after prolonged use is compensated for by the movement of fixed block, guaranteeing should
Transmission mechanism can continue normal use.
The effect of ring gear is the synchronism that can guarantee three fixed blocks and move in correcting process in the utility model.
Relative to traditional transmission mechanism technology, it is centainly and defeated to be suitable for load for the transmission mechanism of the utility model design
Out in the certain mechanism of revolving speed, driver that people can select critical speed of different sizes according to the different demands of mechanism
Structure, input shaft drives output shaft to rotate by the friction of three friction blocks and output shaft in the utility model, and three frictions
There is the first spring between block and corresponding fixed block, the first spring can be compressed, i.e., when the load on output shaft is larger,
Output shaft will extrusion friction block make that slipping phenomenon occurs between friction block and output shaft, friction block will not continue to driving output
Axis rotation prevents output axle load larger and input shaft is stuck, so that the driving motor of input axis connection is since it is desired that pay
Cause to overheat compared with large driving force, driving motor is burnt out.
Detailed description of the invention
Fig. 1 is global facility appearance diagram.
Fig. 2 is global facility distribution schematic diagram.
Fig. 3 is friction block distribution schematic diagram.
Fig. 4 is friction block scheme of installation.
Fig. 5 is output shaft scheme of installation.
Fig. 6 is input shaft scheme of installation.
Fig. 7 is installation cylindrical structure schematic diagram.
Fig. 8 is the first mounting groove distribution schematic diagram.
Fig. 9 is ring gear mounting groove distribution schematic diagram.
Figure 10 is installation cylindrical inside structure distribution schematic diagram.
Figure 11 is ring gear scheme of installation.
Figure 12 is the first spring scheme of installation.
Figure 13 is that first gear and the second rack gear cooperate schematic diagram.
Figure 14 is limit plate scheme of installation.
Figure label title: 1, output shaft；2, mounting shell is driven；3, input shaft；4, friction block；5, fixed block；6, first
Gear；7, the first rack gear；8, cylinder is installed；9, fixed ring；10, fixed link；11, the first mounting groove；12, the second mounting groove；13,
Third mounting groove；14, the 4th mounting groove；15, the 5th mounting groove；16, the 6th mounting groove；17, ring gear mounting groove；18, ring gear；
19, the second rack gear；20, the first spring；21, first rotating shaft；22, third rack gear；23, the second shaft；24, friction pulley；25, third
Gear；26, the first leaf spring；27, third shaft；28, limit plate.
Specific embodiment
As shown in Figure 1, 2, it includes output shaft 1, driving mounting shell 2, input shaft 3, friction block 4, fixed block 5, the first tooth
Take turns the 6, first rack gear 7, installation cylinder 8, fixed ring 9, fixed link 10, the first mounting groove 11, the second mounting groove 12, third mounting groove
13, the 4th mounting groove 14, the 5th mounting groove 15, the 6th mounting groove 16, ring gear mounting groove 17, ring gear 18, the second rack gear 19, first
Spring 20, first rotating shaft 21, third rack gear 22, the second shaft 23, friction pulley 24, third gear 25, the first leaf spring 26, third turn
Axis 27, limit plate 28, wherein as shown in fig. 6, one end of driving mounting shell 2 has circular shaft bore, the other end of driving mounting shell 2
Input shaft 3 is installed；As shown in figure 5, there are three fixed link 10, fixed rings 9 for circumferential equably installation on the periphery of fixed ring 9
The inside of driving mounting shell 2 is mounted on by three fixed links 10, and close to input shaft 3；One end of output shaft 1 passes through driving peace
Axis hole nesting on dress shell 2 is mounted in fixed ring 9, and the other end of output shaft 1 is located at the outside of driving mounting shell 2.
As shown in fig. 7, the middle position of installation cylinder 8 has circular shaft bore, circumferential direction is uniform on the inner headed face of circular shaft bore
Ground is opened there are three the first mounting groove 11, and the structure opened on three the first mounting grooves 11 is identical, and three first are installed
Any one in slot 11, as shown in figure 8, the side of the first mounting groove 11 is provided with the 5th mounting groove 15, the one of the 5th mounting groove 15
Side is provided with the 6th mounting groove 16, and the side of the 6th mounting groove 16 is provided with the second mounting groove 12, and the other side of the first mounting groove 11 is opened
There is the 4th mounting groove 14, the side of the 4th mounting groove 14 is provided with third mounting groove 13.
As shown in figure 9, being provided with ring gear mounting groove 17, ring gear mounting groove 17 and three third mounting grooves 13 on installation cylinder 8
It communicates；Installation cylinder 8 is fixedly mounted on 2 inside of driving mounting shell.
As shown in Figure 10,11, the structure installed on three the first mounting grooves 11 is identical, and three first are installed
Any one in slot 11, as shown in figure 3, fixed block 5 is mounted on the upside of the first mounting groove 11；As shown in figure 13, friction block 4
Lower end has arcuate friction surface, and the downside of friction block 4 has step surface, as shown in figure 4, friction block 4 is mounted on the first mounting groove
11 downside, and the downside of friction block 4 and 1 frictional fit of output shaft, are equipped with the first spring between friction block 4 and fixed block 5
20；As shown in figure 13, the second rack gear 19 is mounted on the side of fixed block 5, and the opened on the second rack gear 19 and installation cylinder 8
Five mounting grooves 15 and the cooperation of the 6th mounting groove 16；The both ends of second shaft 23 are mounted on the second installation opened on installation cylinder 8
In the round hole that front and rear sides are opened in slot 12；Third gear 25 is mounted on one end of the second shaft 23, third gear 25 and
The engagement of two rack gears 19；Friction pulley 24 is mounted on the other end of the second shaft 23；One end of third shaft 27 is mounted on the second installation
On the side of slot 12；As shown in figure 14, one end of limit plate 28 has pin hole, and the other end of limit plate 28 has arcwall face, limit
Position plate 28 is mounted in third shaft 27 by pin hole, and there is limit plate 28 one end of arcwall face to match with the friction of friction pulley 24
It closes；First leaf spring 26 is installed, one end of the first leaf spring 26 is mounted between limit plate 28 and the side of the second mounting groove 12
On the side of two mounting grooves 12, the other end of the first leaf spring 26 is mounted on limit plate 28 on the one side of friction pulley 24；Such as
Shown in Figure 13, one end of third rack gear 22 is mounted on the other side of fixed block 5, and is opened on third rack gear 22 and installation cylinder 8
The cooperation of the 4th mounting groove 14, the other end position of third rack gear 22 and friction block 4 are appeared on the stage the downside of terrace；The two of first rotating shaft 21
End is mounted on the two sides of third mounting groove 13；First gear 6 is mounted in first rotating shaft 21, first gear 6 and third tooth
Item 22 engages；In normal state, third rack gear 22 and friction block 4 appear on the stage terrace downside between have certain interval.
Ring gear 18 is mounted in ring gear mounting groove 17, and ring gear 18 is engaged with three first gears 6.
Above-mentioned first spring 20 is constantly in compression Pre strained state.
As the further improvement of this technology, the lower end of above-mentioned friction block 4 has friction rubber；Limit plate 28 has arc
The one end in face has friction rubber.
As the further improvement of this technology, above-mentioned first spring 20 is compressed spring.
As the further improvement of this technology, connected between above-mentioned output shaft 1 and fixed ring 9 by bearing.
As the further improvement of this technology, above three fixed link 10 is fixedly mounted on driving peace by welding
It fills on 2 inner headed face of shell.
As the further improvement of this technology, the wearability of above-mentioned friction block 4 is lower than the wearability of output shaft 1.
In summary:
The utility model design the utility model has the advantages that the transmission mechanism, it is centainly and defeated to be suitable for the certain i.e. transmitting torque of load
Out in the certain mechanism of revolving speed, driver that people can select critical speed of different sizes according to the different demands of mechanism
Structure, input shaft 3 drives output shaft 1 to rotate by the friction of three friction blocks 4 and output shaft 1 in the utility model, and three
There is the first spring 20, the first spring 20 can be compressed, i.e., when on output shaft 1 between friction block 4 and corresponding fixed block 5
When loading larger, output shaft 1 will extrusion friction block 4 make that slipping phenomenon occurs between friction block 4 and output shaft 1, friction block 4
It will not continue to driving output shaft 1 to rotate, prevent output shaft 1 from loading larger and input shaft 3 is stuck, so that input shaft 3 connected
Driving motor burns out driving motor since it is desired that pay compared with large driving force and cause to overheat.
In the utility model when the second rack gear 19 moves down, the second rack gear 19 will drive the rotation of third gear 25, the
Three gears 25 will drive the second shaft 23 rotation for installing it, and the rotation of the second shaft 23 drives mounted thereto 24 turns of friction pulley
Dynamic, the rotation of friction pulley 24 will squeeze limit plate 28 engaged therewith and make be engaged on limit plate 28 with friction pulley 24 one
The side oscillation away from friction pulley 24 is held, the swing of limit plate 28 will compress the first leaf spring 26, when the second rack gear 19 is upward
When mobile, the second rack gear 19 will drive the rotation of third gear 25, and third gear 25 will drive the second shaft 23 rotation for installing it,
The rotation of second shaft 23 drives friction pulley 24 mounted thereto to rotate, and the rotation of friction pulley 24 will squeeze limit engaged therewith
Plate 28 makes the one end being engaged on limit plate 28 with friction pulley 24 towards the side oscillation close to friction pulley 24, but limits
Plate 28 is in close contact under the action of the first leaf spring 26 with friction pulley 24, i.e., limit plate 28 can not be towards close to friction pulley 24
One side oscillation, i.e. the second rack gear 19 cannot move up, and pass through friction pulley 24, third gear 25, limit plate 28 and the first leaf spring
26 pair of second rack gear 19 plays unidirectional position-limiting action, i.e. the second rack gear 19 can only move down, and cannot move up.
Since the first spring 20 is constantly in compression Pre strained state in the utility model, fixed block 5 is mounted on corresponding first
The upper side of the upside of mounting groove 11, the first mounting groove 11 plays position-limiting action to it, i.e., in normal state, friction block 4 exists
There is between output shaft 1 certain friction pressure under the action of first spring 20 and determine transmitting torque, when 1 turn of output shaft
When dynamic, output shaft 1, which will drive, drives mounting shell 2 to rotate, and the driving rotation of mounting shell 2 drives the installation cylinder 8 for installing it to rotate, peace
Filling the rotation of cylinder 8 drives three friction blocks 4 to rotate around output shaft 1, and three friction blocks 4 will be at this around the rotation of output shaft 1
Band driven input shaft 3 rotates under the action of friction pressure, i.e., in normal state, output shaft 1 can be rotated with driven input shaft 3；When
When three friction blocks 4 are rotated around output shaft 1, three friction blocks 4 just will receive a centrifugal force, in the effect of the centrifugal force
Under, the friction pressure between three friction blocks 4 and output shaft 1 will become smaller, the transmission between output shaft 1 and three friction blocks 4
Power will die down, so the transmission mechanism is suitable for loading in the mechanism that certain i.e. transmitting torque is certain and output revolving speed is certain；
Suitable torque and critical speed is selected to be suitable for the transmission mechanism of the mechanism according to institution requests before the use, transmitting torque is set
After fixed, after critical speed W is selected, when input speed is less than critical speed W, between three friction blocks 4 and output shaft 1
Skidding is not will do it, input shaft 3 can normally drive output shaft 1 to rotate, when input speed is greater than critical speed W smaller value
When, it just will do it skidding between three friction blocks 4 and output shaft 1, input shaft 3 cannot normally drive output shaft 1 to rotate；When defeated
When entering revolving speed greater than critical speed W the larger value, cunning will be disengaged between three friction blocks 4 and output shaft 1, input shaft 3 cannot
Output shaft 1 is driven to rotate；So selecting transmission of the input speed less than critical W according to institution requests when selecting transmission mechanism
Mechanism.
In the utility model when the driving mechanism after prolonged use, three friction blocks 4 will be worn, so that three
For a friction block 4 to close to the movement of the side of output shaft 1, three 4 movements of friction block will make three the first springs 20 to three
Friction block 4 obtains preload pressure and dies down, and output shaft 1 drives input shafts 3 to rotate to be driven and will weaken by three friction blocks 4, is
Prevent this from occurring, transmission mechanism after a period of use, i.e., the step surface of friction block 4 and third rack gear 22 be soon
When contact, correction process is carried out to the transmission mechanism, in correcting process, the velocity of rotation of input shaft 3 is controlled first, so that defeated
Enter axis 3 with a higher revolving speed, i.e. three friction blocks 4 have a higher revolving speed, the centrifugation that three friction blocks 4 are subject to
Power is larger, and three friction blocks 4 become larger far from output shaft 1, the pressure of three the first springs 20 at this time, then stops input shaft rapidly
3 rotations, three friction blocks 4 will be quickly mobile towards 1 side of output shaft under the elastic force effect of corresponding first spring 20, and three
Friction block 4, when third rack gear 22 is with the step face contact of corresponding friction block 4, rubs towards in 1 side moving process of output shaft
4 movement of cleaning block will make third rack gear 22 mobile, and the movement of third rack gear 22 just will drive fixed block 5 towards 1 side of output shaft
Mobile, after friction block 4, which is moved to, to be contacted again with output shaft 1, fixed block 5 continues under effect of inertia towards output shaft 1 one
Side is mobile, and fixed block movement will squeeze the first spring, so that the first spring 20 compresses friction block 4, so that friction block 4 and output
There is certain friction pressure, after fixed block stops mobile, fixed block 5 is in friction pulley 24, third gear 25, limit between axis 1
Friction block will not be made by the first spring 20 to far from output axis direction movement under the action of position plate 28 and the first leaf spring 26
There is certain friction pressure between output shaft, in this case, input shaft 3 can continue that output shaft 1 is driven to rotate, and
The abrasion that friction block 4 is subject to after prolonged use is compensated for by the movement of fixed block 5, guarantees that the transmission mechanism can continue
Normal use.
The effect of ring gear 18 is the synchronization that can guarantee three fixed blocks 5 and move in correcting process in the utility model
Property.
Specific embodiment: when the transmission mechanism designed using the utility model, in normal use process, output shaft 1
It will drive and mounting shell 2 is driven to rotate, the driving rotation of mounting shell 2 drives the installation cylinder 8 for installing it to rotate, and installation cylinder 8 rotates
Three friction blocks 4 are driven to rotate around output shaft 1, three friction blocks 4 will be in the work of the friction pressure around the rotation of output shaft 1
It is rotated with lower band driven input shaft 3, i.e., input shaft 3 drives output shaft 1 to rotate；When carrying out correction process after a period of use,
The velocity of rotation of input shaft 3 is controlled first, so that input shaft 3 has a higher revolving speed, i.e. three friction blocks 4 have one
Higher revolving speed, the centrifugal force that three friction blocks 4 are subject to is larger, and three friction blocks 4 are far from output shaft 1, three the first bullets at this time
The pressure of spring 20 becomes larger, and then stops input shaft 3 and rotates, three friction blocks 4 under the elastic force effect of corresponding first spring 20 just
Can be quickly mobile towards 1 side of output shaft, three friction blocks 4 towards in 1 side moving process of output shaft, when third rack gear 22 with
When the step face contact of corresponding friction block 4,4 movement of friction block will make third rack gear 22 mobile, and third rack gear 22 is mobile
It is mobile towards 1 side of output shaft just to will drive fixed block 5, after friction block 4, which is moved to, to be contacted again with output shaft 1, the first bullet
Spring 20 continues to compress friction block 4, so that there is certain friction pressure between friction block 4 and output shaft 1, in the process, Gu
Determining block 5 will not move up under the action of friction pulley 24, third gear 25, limit plate 28 and the first leaf spring 26, i.e. the first bullet
Friction block 4 is compressed downwards in 20 meetings of spring, when the retracted position of the first spring 20 is restored to normal Pre strained state, fixed block 5,
One spring 20 and friction block 4 would be at a stable state, and in this case, input shaft 3 can continue to drive output shaft 1
Rotation, and the abrasion that friction block 4 is subject to after prolonged use is compensated for by the movement of fixed block 5, guarantee the transmission mechanism
It can continue normal use.
Claims (6)
1. one kind is based on spring controlled transmission mechanism, it is characterised in that: it includes output shaft, driving mounting shell, input shaft, rubs
Cleaning block, fixed block, first gear, the first rack gear, installation cylinder, fixed ring, fixed link, the first mounting groove, the second mounting groove, the
Three mounting grooves, the 4th mounting groove, the 5th mounting groove, the 6th mounting groove, ring gear mounting groove, ring gear, the second rack gear, the first spring,
First rotating shaft, the second rack gear, the second shaft, friction pulley, third gear, the first leaf spring, third shaft, limit plate, wherein driving
One end of mounting shell has circular shaft bore, and the other end of mounting shell is driven to be equipped with input shaft；It is circumferential on the periphery of fixed ring
Equably installation is there are three fixed link, and fixed ring is mounted on the inside of driving mounting shell by three fixed links, and close to input
Axis；The axis hole nesting that one end of output shaft passes through on driving mounting shell is mounted in fixed ring, and the other end of output shaft, which is located at, to be driven
The outside of dynamic mounting shell；
The middle position for installing cylinder has circular shaft bore, circumferential on the inner headed face of circular shaft bore equably to open that there are three the first peaces
Tankage, the structure opened on three the first mounting grooves is identical, for any one in three the first mounting grooves, the first installation
The side of slot is provided with the 5th mounting groove, and the side of the 5th mounting groove is provided with the 6th mounting groove, and the side of the 6th mounting groove is provided with
Two mounting grooves, the other side of the first mounting groove are provided with the 4th mounting groove, and the side of the 4th mounting groove is provided with third mounting groove；
It is provided with ring gear mounting groove on installation cylinder, ring gear mounting groove is communicated with three third mounting grooves；Cylinder is installed to be fixedly mounted
On the inside of driving mounting shell；
The structure installed on three the first mounting grooves is identical, for any one in three the first mounting grooves, fixed block
It is mounted on the upside of the first mounting groove；The lower end of friction block has arcuate friction surface, and the downside of friction block has step surface, friction
Block is mounted on the downside of the first mounting groove, and the downside of friction block and output shaft frictional fit, pacifies between friction block and fixed block
Equipped with the first spring；Second rack gear is mounted on the side of fixed block, and the 5th installation opened on the second rack gear and installation cylinder
Slot and the cooperation of the 6th mounting groove；The both ends of second shaft are mounted on front and rear sides institute in the second mounting groove opened on installation cylinder
In the round hole opened；Third gear is mounted on one end of the second shaft, and third gear is engaged with the second rack gear；Friction pulley is mounted on
The other end of second shaft；One end of third shaft is mounted on the side of the second mounting groove；One end of limit plate has pin hole,
The other end of limit plate has arcwall face, and limit plate is mounted in third shaft by pin hole, and limit plate has arcwall face
One end and friction pulley frictional fit；First leaf spring is installed between limit plate and the side of the second mounting groove, the one of the first leaf spring
End is mounted on the side of the second mounting groove, and the other end of the first leaf spring is mounted on limit plate on the one side of friction pulley；
One end of third rack gear is mounted on the other side of fixed block, and the 4th mounting groove opened on third rack gear and installation cylinder is matched
It closes, the other end position of third rack gear and friction block are appeared on the stage the downside of terrace；The both ends of first rotating shaft are mounted on third mounting groove
On two sides；First gear is mounted in first rotating shaft, and first gear is engaged with third rack gear；In normal state, third tooth
Item and friction block appear on the stage terrace downside between have certain interval；
Ring gear is mounted in ring gear mounting groove, and ring gear is engaged with three first gears；
Above-mentioned first spring is constantly in compression Pre strained state.
2. according to claim 1 a kind of based on spring controlled transmission mechanism, it is characterised in that: under above-mentioned friction block
End has friction rubber；Limit plate has friction rubber with one end of arcwall face.
3. a kind of spring controlled transmission mechanism is based on according to claim 1, it is characterised in that: above-mentioned first spring is
Compressed spring.
4. a kind of spring controlled transmission mechanism is based on according to claim 1, it is characterised in that: above-mentioned output shaft and solid
Determine to connect between ring by bearing.
5. according to claim 1 a kind of based on spring controlled transmission mechanism, it is characterised in that: above three fixed link
It is fixedly mounted on driving mounting shell inner headed face by welding.
A kind of be based on spring controlled transmission mechanism 6. according to claim 1, it is characterised in that: above-mentioned friction block it is resistance to
Mill property is lower than the wearability of output shaft.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821646341.6U CN208831628U (en) | 2018-10-11 | 2018-10-11 | One kind being based on spring controlled transmission mechanism |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821646341.6U CN208831628U (en) | 2018-10-11 | 2018-10-11 | One kind being based on spring controlled transmission mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208831628U true CN208831628U (en) | 2019-05-07 |
Family
ID=66318811
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|---|---|---|---|
| CN201821646341.6U Expired - Fee Related CN208831628U (en) | 2018-10-11 | 2018-10-11 | One kind being based on spring controlled transmission mechanism |
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| CN (1) | CN208831628U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180481A (en) * | 2022-02-17 | 2022-03-15 | 河南工学院 | Safety protection device of hoisting equipment and application of safety protection device in tree transplanting |
-
2018
- 2018-10-11 CN CN201821646341.6U patent/CN208831628U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114180481A (en) * | 2022-02-17 | 2022-03-15 | 河南工学院 | Safety protection device of hoisting equipment and application of safety protection device in tree transplanting |
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