CN105782291A - Self-adaptive flexible friction speed limiting device for preventing gear release - Google Patents
Self-adaptive flexible friction speed limiting device for preventing gear release Download PDFInfo
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- CN105782291A CN105782291A CN201410819369.5A CN201410819369A CN105782291A CN 105782291 A CN105782291 A CN 105782291A CN 201410819369 A CN201410819369 A CN 201410819369A CN 105782291 A CN105782291 A CN 105782291A
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Abstract
The invention discloses a self-adaptive flexible friction speed limiting device for preventing gear release. The device comprises a shell; an input shaft and a speed limiting shaft are arranged in the shell in parallel; the input shaft is provided with a driving gear; the speed limiting shaft is provided with a torque self-adaptive friction mechanism and a spline section; the spline section is coated with a tooth sleeve and an engagement sleeve; the tooth sleeve is coated with a driven gear; the driven gear is provided with an engagement outer spline; the engagement sleeve is provided with an engagement inner spline in gear engagement with engagement spline teeth; a poking fork groove is formed in the engagement sleeve; a poking fork mechanism matched with the poking fork groove and driving the engagement sleeve to move along the speed limiting shaft is arranged in the shell; the torque self-adaptive friction mechanism includes a crankshaft pulley fixedly mounted on the speed limiting shaft, a friction disc I coating the speed limiting shaft and slidingly matched by single degree of freedom, and a friction disc II corresponding to the friction disc I; all outer spline teeth of the engagement outer spline are provided with inverted conical teeth I; and all inner spline teeth of the engagement inner spline are provided with inverted conical teeth II.
Description
Technical field
The present invention designs a kind of speed-limiting device, and concrete is a kind of friction speed-limiting device.
Background technology
Existing lace conveying device generally comprises transmission band, and the two ends of conveyer belt are sleeved on live-roller, utilizes actuating unit conveying to place material operating on a moving belt.But, some are delivered to for the device for transporting objects of lower from eminence, in order to obtain suitable transfer rate, actuating unit does not need only provide for the power of conveyer belt, and when weight of material is bigger, also need to overcome the action of gravity of material, increasingly faster to limit transmission band transfer rate under acceleration of gravity effect, cause substantial amounts of energy resource consumption and waste.
Summary of the invention
In view of this, it is an object of the invention to provide a kind of anti-self-adapting flexible friction speed-limiting device out of supply, it is possible to the torque Automatic adjusument frictional force size according to receiving carrys out counter balance torque effect, and is prevented from out of supply.
For reaching above-mentioned purpose, the present invention provides following technical scheme:
A kind of anti-self-adapting flexible friction speed-limiting device out of supply, including housing, is provided with the power shaft being parallel to each other and speed limit axle in described housing；Described power shaft is provided with the driving gear of synchronous rotation, described speed limit axle is provided with moment of torsion adaptive friction mechanism, and described speed limit axle is additionally provided with spline segment, on described spline segment, set is equiped with tooth set and engaging sleeve, described tooth puts to be equiped with and rotates the driven gear coordinating and engaging with described driving gear, described driven gear is provided with engagement external splines, and described engaging sleeve is provided with for hanging, with described mesh splines tooth, the engagement internal spline that shelves engage；
Moving bead disk that described moment of torsion adaptive friction mechanism includes being fixedly mounted on described speed limit axle, it is sleeved on speed limit axle and the frictional disk I that is slidably matched with its single-degree-of-freedom and the frictional disk II being correspondingly arranged with frictional disk I, described frictional disk I is between described moving bead disk and frictional disk II, described moving bead disk is provided with the Puli's pearl arm component for driving frictional disk I to slide to described frictional disk II towards the side of described frictional disk I, described frictional disk II is sleeved on speed limit axle, and is provided with the rubbing surface cooperated between described frictional disk I and frictional disk II；
Described housing is provided with spring base with described frictional disk II one_to_one corresponding, it is provided with the spring for being pressed on described frictional disk I by described frictional disk II in described spring base, and is provided with between described spring base and frictional disk II for frictional disk II slide-and-guide the guiding mechanism that prevents frictional disk II from rotating；
All external spline teeth of described engagement external splines are disposed as teeth I, the direction that the width of described teeth I points to described engagement internal spline along described engagement external splines is gradually increased, and described teeth I is provided with, towards one end of described engagement internal spline, the arc envelope face I formed by circular arc chamfering, and seamlessly transit between described arc envelope face I with the two side of corresponding described teeth I；
All inner spline gears of described engagement internal spline are disposed as teeth II, the direction that the width of described teeth II points to described engagement external splines along described engagement internal spline is gradually increased, and described teeth II is provided with, towards one end of described engagement external splines, the arc envelope face II formed by circular arc chamfering, seamlessly transit between described arc envelope face II with the two side of corresponding described teeth II.
Further, described Puli's pearl arm component includes the uniform at least three Puli's pearl component being arranged on described moving bead disk of annular, being provided with mounting seat with described Puli's pearl component one_to_one corresponding on described moving bead disk, described Puli's pearl component is hingedly mounted in described mounting seat.
Further, described Puli's pearl component is hingedly mounted in described mounting seat away from the one end at described moving bead disk center.
Further, described frictional disk I is provided with, towards the side of described moving bead disk, the smooth surface coordinated with described Puli's pearl component.
Further, described guiding mechanism includes the gathering sill being arranged on described spring base and the guide post being arranged on described frictional disk II and coordinating with gathering sill.
Further, described teeth I is arranged axisymmetricly, falls in the plane of symmetry of described teeth I and angle between the dual-side in cross section that the plane parallel with the axis of described engagement external splines intercepts on corresponding described teeth I is 10 °.
Further, the external diameter in described arc envelope face I is gradually reduced in the radially outward direction of described engagement external splines；The Axisymmetric Distributed Line in described arc envelope face I is in the oblique line tilted relative to the axis of described engagement external splines, and the angle between the Axisymmetric Distributed Line in described arc envelope face I with the described axis engaging external splines is 70 °.
Further, described teeth II is arranged axisymmetricly, falls in the plane of symmetry of described teeth II and angle between the dual-side in cross section that the plane parallel with the axis of described engagement internal spline intercepts on corresponding described teeth II is 10 °.
Further, the external diameter in described arc envelope face II along described engagement internal spline radially inwardly on be gradually reduced；The Axisymmetric Distributed Line in described arc envelope face II is in the oblique line tilted relative to the axis of described engagement internal spline, and the angle between the Axisymmetric Distributed Line in described arc envelope face II with the described axis engaging internal spline is 70 °.
The beneficial effects of the present invention is:
The self-adapting flexible friction speed-limiting device anti-out of supply of the present invention, when power shaft is subject to moment of torsion effect rotation, driving gear drives driven gear to rotate, utilize shifting fork mechanism to drive engagement internal spline and engage external splines engagement, driven gear drives speed limit axle to rotate, and Puli's pearl arm component drives frictional disk I to move to frictional disk II, increases the frictional force between frictional disk I and frictional disk II, the rotating speed preventing speed limit axle is too fast, and then reacts to and realize the speed limit to power shaft on power shaft；Additionally, when moment of torsion one timing that power shaft is subject to, if the frictional force between frictional disk I and frictional disk II is too small, then the rotating speed of speed limit axle can increase, and then increase the frictional force between frictional disk I and frictional disk II, until the frictional force between frictional disk I and frictional disk II acts on the moment of torsion on speed limit axle just and the balance that is subject to of power shaft, the in stable condition of moment of torsion adaptive friction mechanism could be kept, namely moment of torsion one timing that power shaft is subject to, its rotating speed is also certain, it is possible to reach the purpose of speed limit；
By the spline tooth of engagement external splines and engagement internal spline is disposed as teeth, and arc envelope face is set in one end of teeth, it is impossible to more smooth out when hanging shelves engagement, and it can be avoided that engagement external splines and engagement internal spline are out of supply after hanging shelves engagement.
Accompanying drawing explanation
In order to make the purpose of the present invention, technical scheme and beneficial effect clearly, the present invention provides drawings described below to illustrate:
Fig. 1 is the structural representation that the present invention prevents self-adapting flexible friction speed-limiting device embodiment out of supply；
Fig. 2 is the A detail drawing of Fig. 1；
Fig. 3 is the structural representation of driven gear；
Fig. 4 is the B-B profile of Fig. 3；
Fig. 5 is the structural representation of engaging sleeve；
Fig. 6 is the C-C profile of Fig. 5.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the invention will be further described, so that those skilled in the art can be better understood from the present invention and can be practiced, but illustrated embodiment is not as a limitation of the invention.
As it is shown in figure 1, prevent the structural representation of self-adapting flexible friction speed-limiting device embodiment out of supply for the present invention.The present embodiment prevents self-adapting flexible friction speed-limiting device out of supply, including housing 1, is provided with the power shaft 2 and speed limit axle 3 that are parallel to each other in housing 1.Power shaft 2 is provided with the driving gear 4 of synchronous rotation, speed limit axle 3 is provided with moment of torsion adaptive friction mechanism, and speed limit axle 3 is additionally provided with spline segment, on spline segment, set is equiped with tooth set 5 and engaging sleeve 6, on tooth set 5, set is equiped with and rotates the driven gear 7 coordinating and engaging with driving gear 4, driven gear 7 is provided with engagement external splines 8, engaging sleeve 6 is provided with for hanging, with mesh splines tooth, the engagement internal spline 9 that shelves engage, engaging sleeve 6 is additionally provided with fork slot 10, the shifting fork mechanism coordinating and driving engaging sleeve 6 to move with fork slot 10 it is provided with along speed limit axle 3 in housing 1.
The moment of torsion adaptive friction mechanism of the present embodiment includes the moving bead disk 11 being fixedly mounted on speed limit axle, the frictional disk I 12 being sleeved on speed limit axle 3 and be slidably matched with its single-degree-of-freedom and the frictional disk II 13 being correspondingly arranged with frictional disk I 12, frictional disk I 12 is between moving bead disk 11 and frictional disk II 13, moving bead disk 11 is provided with the Puli's pearl arm component for driving frictional disk I 12 to slide to frictional disk II 13 towards the side of frictional disk I 12, frictional disk II 13 is sleeved on speed limit axle 3, and between frictional disk I 12 and frictional disk II 13, it is provided with the rubbing surface cooperated.The housing 1 of the present embodiment is provided with spring base 14 with frictional disk II 13 one_to_one corresponding, it is provided with the spring 15 for being pressed on by frictional disk II 13 on frictional disk I 12 in spring base 14, and is provided with between spring base 14 and frictional disk II 13 for frictional disk II 13 slide-and-guide the guiding mechanism that prevents frictional disk II 13 from rotating relative to speed limit axle 3.The guiding mechanism of the present embodiment includes the gathering sill 16 being arranged on spring base 14 and the guide post 17 being arranged on frictional disk II 13 and coordinating with gathering sill 16.
Further, Puli's pearl arm component includes the uniform at least three Puli's pearl component 18 being arranged on moving bead disk 11 of annular, and moving bead disk 11 is provided with mounting seat 19 with Puli's pearl component 18 one_to_one corresponding, and Puli's pearl component 18 is hingedly mounted in mounting seat 19.Puli's pearl component 18 of the present embodiment is hingedly mounted in mounting seat 19 away from the one end at moving bead disk 11 center, and Puli's pearl component 18 is provided with roller 20 near the one end at moving bead disk 11 center, frictional disk I 12 is provided with, towards the side of moving bead disk 11, the smooth surface coordinated with Puli's pearl component 18, it is possible to effectively reduce resistance.
All external spline teeth of the engagement external splines 8 of the present embodiment are disposed as teeth I, the direction that the width of teeth I points to engagement internal spline 9 along engagement external splines 8 is gradually increased, and teeth I is provided with, towards the one end engaging internal spline 9, the arc envelope face I 21 formed by circular arc chamfering, and seamlessly transit between arc envelope face I 21 with the two side of corresponding teeth I.The teeth I of the present embodiment is arranged axisymmetricly, the angle α between the dual-side in the plane of symmetry falling in teeth I cross section intercepted on corresponding teeth I with the parallel plane of axis of engagement external splines 81It is 10 °.The external diameter in arc envelope face I 21 is gradually reduced in the radially outward direction of engagement external splines 8, the Axisymmetric Distributed Line in arc envelope face I 21 is in the oblique line tilted relative to the axis of engagement external splines, and the angle β between the Axisymmetric Distributed Line in arc envelope face I 21 and the axis engaging external splines1It it is 70 °.
All inner spline gears of the engagement internal spline 9 of the present embodiment are disposed as teeth II, the direction that the width of teeth II points to engagement external splines 8 along engagement internal spline 9 is gradually increased, and teeth II is provided with, towards the one end engaging external splines, the arc envelope face II 22 formed by circular arc chamfering, seamlessly transit between arc envelope face II 22 with the two side of corresponding teeth II.The teeth II of the present embodiment is arranged axisymmetricly, the angle α between the dual-side in the plane of symmetry falling in teeth II cross section intercepted on corresponding teeth II with the parallel plane of axis of engagement internal spline 92It is 10 °.The external diameter in the arc envelope face II 22 of the present embodiment along engagement internal spline radially inwardly on be gradually reduced；The Axisymmetric Distributed Line in arc envelope face II 22 is in the oblique line tilted relative to the axis of engagement internal spline, and the angle β between the Axisymmetric Distributed Line in arc envelope face II 22 and the axis engaging internal spline2It it is 70 °.
The self-adapting flexible friction speed-limiting device anti-out of supply of the present embodiment, when power shaft is subject to moment of torsion effect rotation, driving gear drives driven gear to rotate, utilize shifting fork mechanism to drive engagement internal spline and engage external splines engagement, driven gear drives speed limit axle to rotate, and Puli's pearl arm component drives frictional disk I to move to frictional disk II, increases the frictional force between frictional disk I and frictional disk II, the rotating speed preventing speed limit axle is too fast, and then reacts to and realize the speed limit to power shaft on power shaft；Additionally, when moment of torsion one timing that power shaft is subject to, if the frictional force between frictional disk I and frictional disk II is too small, then the rotating speed of speed limit axle can increase, and then increase the frictional force between frictional disk I and frictional disk II, until the frictional force between frictional disk I and frictional disk II acts on the moment of torsion on speed limit axle just and the balance that is subject to of power shaft, the in stable condition of moment of torsion adaptive friction mechanism could be kept, namely moment of torsion one timing that power shaft is subject to, its rotating speed is also certain, it is possible to reach the purpose of speed limit；By the spline tooth of engagement external splines and engagement internal spline is disposed as teeth, and arc envelope face is set in one end of teeth, it is impossible to more smooth out when hanging shelves engagement, and it can be avoided that engagement external splines and engagement internal spline are out of supply after hanging shelves engagement.
Embodiment described above is only the preferred embodiment lifted for absolutely proving the present invention, and protection scope of the present invention is not limited to this.Equivalent replacement that those skilled in the art make on basis of the present invention or conversion, all within protection scope of the present invention.Protection scope of the present invention is as the criterion with claims.
Claims (9)
1. self-adapting flexible friction speed-limiting device one kind anti-out of supply, it is characterised in that: include housing, in described housing, be provided with the power shaft being parallel to each other and speed limit axle；Described power shaft is provided with the driving gear of synchronous rotation, described speed limit axle is provided with moment of torsion adaptive friction mechanism, and described speed limit axle is additionally provided with spline segment, on described spline segment, set is equiped with tooth set and engaging sleeve, described tooth puts to be equiped with and rotates the driven gear coordinating and engaging with described driving gear, described driven gear is provided with engagement external splines, and described engaging sleeve is provided with for hanging, with described mesh splines tooth, the engagement internal spline that shelves engage；
Moving bead disk that described moment of torsion adaptive friction mechanism includes being fixedly mounted on described speed limit axle, it is sleeved on speed limit axle and the frictional disk I that is slidably matched with its single-degree-of-freedom and the frictional disk II being correspondingly arranged with frictional disk I, described frictional disk I is between described moving bead disk and frictional disk II, described moving bead disk is provided with the Puli's pearl arm component for driving frictional disk I to slide to described frictional disk II towards the side of described frictional disk I, described frictional disk II is sleeved on speed limit axle, and is provided with the rubbing surface cooperated between described frictional disk I and frictional disk II；
Described housing is provided with spring base with described frictional disk II one_to_one corresponding, it is provided with the spring for being pressed on described frictional disk I by described frictional disk II in described spring base, and is provided with between described spring base and frictional disk II for frictional disk II slide-and-guide the guiding mechanism that prevents frictional disk II from rotating；
All external spline teeth of described engagement external splines are disposed as teeth I, the direction that the width of described teeth I points to described engagement internal spline along described engagement external splines is gradually increased, and described teeth I is provided with, towards one end of described engagement internal spline, the arc envelope face I formed by circular arc chamfering, and seamlessly transit between described arc envelope face I with the two side of corresponding described teeth I；
All inner spline gears of described engagement internal spline are disposed as teeth II, the direction that the width of described teeth II points to described engagement external splines along described engagement internal spline is gradually increased, and described teeth II is provided with, towards one end of described engagement external splines, the arc envelope face II formed by circular arc chamfering, seamlessly transit between described arc envelope face II with the two side of corresponding described teeth II.
2. self-adapting flexible friction speed-limiting device anti-out of supply according to claim 1, it is characterized in that: described Puli's pearl arm component includes the uniform at least three Puli's pearl component being arranged on described moving bead disk of annular, being provided with mounting seat with described Puli's pearl component one_to_one corresponding on described moving bead disk, described Puli's pearl component is hingedly mounted in described mounting seat.
3. self-adapting flexible friction speed-limiting device anti-out of supply according to claim 2, it is characterised in that: described Puli's pearl component is hingedly mounted in described mounting seat away from the one end at described moving bead disk center.
4. self-adapting flexible friction speed-limiting device anti-out of supply according to claim 2, it is characterised in that: described frictional disk I is provided with, towards the side of described moving bead disk, the smooth surface coordinated with described Puli's pearl component.
5. self-adapting flexible friction speed-limiting device anti-out of supply according to claim 1, it is characterised in that: described guiding mechanism includes the gathering sill being arranged on described spring base and the guide post being arranged on described frictional disk II and coordinating with gathering sill.
6. self-adapting flexible friction speed-limiting device anti-out of supply according to claim 1, it is characterized in that: described teeth I is arranged axisymmetricly, fall in the plane of symmetry of described teeth I and angle between the dual-side in cross section that the plane parallel with the axis of described engagement external splines intercepts on corresponding described teeth I is 10 °.
7. self-adapting flexible friction speed-limiting device anti-out of supply according to claim 6, it is characterised in that: the external diameter in described arc envelope face I is gradually reduced in the radially outward direction of described engagement external splines；The Axisymmetric Distributed Line in described arc envelope face I is in the oblique line tilted relative to the axis of described engagement external splines, and the angle between the Axisymmetric Distributed Line in described arc envelope face I with the described axis engaging external splines is 70 °.
8. self-adapting flexible friction speed-limiting device anti-out of supply according to claim 1, it is characterized in that: described teeth II is arranged axisymmetricly, fall in the plane of symmetry of described teeth II and angle between the dual-side in cross section that the plane parallel with the axis of described engagement internal spline intercepts on corresponding described teeth II is 10 °.
9. anti-self-adapting flexible friction speed-limiting device out of supply according to claim 8, it is characterised in that: the external diameter in described arc envelope face II along described engagement internal spline radially inwardly on be gradually reduced；The Axisymmetric Distributed Line in described arc envelope face II is in the oblique line tilted relative to the axis of described engagement internal spline, and the angle between the Axisymmetric Distributed Line in described arc envelope face II with the described axis engaging internal spline is 70 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819369.5A CN105782291A (en) | 2014-12-25 | 2014-12-25 | Self-adaptive flexible friction speed limiting device for preventing gear release |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410819369.5A CN105782291A (en) | 2014-12-25 | 2014-12-25 | Self-adaptive flexible friction speed limiting device for preventing gear release |
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| Publication Number | Publication Date |
|---|---|
| CN105782291A true CN105782291A (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410819369.5A Pending CN105782291A (en) | 2014-12-25 | 2014-12-25 | Self-adaptive flexible friction speed limiting device for preventing gear release |
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|---|---|
| CN (1) | CN105782291A (en) |
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- 2014-12-25 CN CN201410819369.5A patent/CN105782291A/en active Pending
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Application publication date: 20160720 |
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