CN109538655A - A kind of frictional limiter of moment of end-tooth - Google Patents
A kind of frictional limiter of moment of end-tooth Download PDFInfo
- Publication number
- CN109538655A CN109538655A CN201811500989.7A CN201811500989A CN109538655A CN 109538655 A CN109538655 A CN 109538655A CN 201811500989 A CN201811500989 A CN 201811500989A CN 109538655 A CN109538655 A CN 109538655A
- Authority
- CN
- China
- Prior art keywords
- tooth
- sprocket wheel
- axle sleeve
- moment
- adjusting nut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 8
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 238000009434 installation Methods 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 4
- 239000010687 lubricating oil Substances 0.000 abstract description 2
- 230000000452 restraining effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 239000002783 friction material Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000000926 separation method Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000009347 mechanical transmission Effects 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000008439 repair process Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
- Gears, Cams (AREA)
- One-Way And Automatic Clutches, And Combinations Of Different Clutches (AREA)
Abstract
The invention discloses a kind of conical-surface friction type limiters of moment.It includes the sprocket wheel for being directly used in output power of the axle sleeve being mounted on transmission shaft and empty set on axle sleeve, set with teeth at least is set in the side of sprocket wheel, the opposite face of sprocket wheel and tooth set is provided with mutually matched end-tooth, the outside of tooth set is provided with the pressing plate being similarly installed on axle sleeve, adjusting nut is also equipped on axle sleeve, butterfly spring is mounted between pressing plate and adjusting nut, butterfly spring be used to squeeze pressing plate to sprocket wheel direction and can be adjusted the spring force of butterfly spring using movement of the adjusting nut on axle sleeve.After above-mentioned structure, cooperation cooperation is reliable, stable friction factor, substantially increases the stability and reliability of torque limitation, is influenced by temperature, vibration, lubricating oil etc. minimum, and long service life, effect on environment is minimum, has the advantages of simple structure and easy realization simultaneously.
Description
Technical field
The present invention relates to a kind of overload protection arrangement, specifically a kind of frictional limiter of moment of end-tooth belongs to
Technical field of mechanical transmission.
Background technique
Limiter of moment is a kind of mechanical overload protection device, is usually used in being mounted on powerdriven driving side and load
Between side, once overload, transmitting torque be more than setting value, disengagement or skidding will be generated, thus make powerdriven master,
Passive side separation, damages mechanical equipment from overload.
Frictional limiter of moment is one of limiter of moment, in existing patented technology, such as
In the Chinese patent of CN201220405669, CN201520830097, CN201620161809, as long as frictional torque limitation
Device, friction pair therein is made of friction plate and sprocket wheel, with friction plate become such frictional limiter of moment must
One of standby feature.
The coefficient of friction of friction plate often changes with the variation for using time, applying working condition, and stability is relatively poor,
Especially coefficient of friction is affected by the high temperature than more serious, and friction material is in friction process, due to the rapid raising of temperature, one
As temperature up to 200 DEG C or more, coefficient of friction is begun to decline, unstable so as to cause the restraining moment of limiter of moment, unreliable,
Simultaneously because friction plate belongs to attrition component, service life is generally shorter；During skidding, it is also easy to produce a large amount of micro mist,
Pollute environment.
Summary of the invention
That the technical problem to be solved in the present invention is to provide a kind of structures is simple, restraining moment is reliable and stable, with small vibration and make
It is long with the service life, the frictional limiter of moment of the minimum end-tooth of effect on environment.
In order to solve the above-mentioned technical problem, the frictional limiter of moment of end-tooth of the invention, including it is mounted on transmission shaft
On the sprocket wheel for being directly used in output power on axle sleeve of axle sleeve and empty set, set with teeth, chain at least are set in the side of sprocket wheel
The opposite face of wheel and tooth set is provided with mutually matched end-tooth, and the outside of tooth set is provided with the pressure being similarly installed on axle sleeve
Plate is also equipped with adjusting nut on axle sleeve, butterfly spring is mounted between pressing plate and adjusting nut, butterfly spring is used for chain
Wheel direction is squeezed pressing plate and can be adjusted the spring force of butterfly spring using movement of the adjusting nut on axle sleeve.
The two sides of the sprocket wheel are respectively arranged with a tooth set, and two tooth sets are provided with mutually matched with sprocket wheel
End-tooth, one of tooth set outside are pressed with pressing plate, another tooth set is pressed on the shaft shoulder of axle sleeve.
The copper sheathing of self-lubricating is installed between the sprocket wheel and axle sleeve.
The sprocket wheel is set as inner face tooth, and two tooth sets are set as outer end face tooth.
The adjusting nut, using being threadedly coupled, is provided on the end face of the adjusting nut for indicating rotation with axle sleeve
The scale of the corresponding relationship of angle and spring force value.
Annular groove is provided on the end face of the sprocket wheel, the annular groove is interior to be equipped with internal gear disc by fastener.
After above-mentioned structure, due to sprocket wheel side be arranged with the mutually matched tooth set with end-tooth of sprocket wheel
And it is pressed over the pressing plate and butterfly spring in tooth set outside, existing friction plate structure is eliminated, the sprocket wheel with end-tooth is utilized
End face tooth engagement between the tooth set with end-tooth realizes friction slave function, is adjusted using movement of the adjusting nut on axle sleeve
The spring force of whole butterfly spring, the coefficient of friction for overcoming conventional friction piece become with the variation for using time, applying working condition
Change, stability is relatively poor and coefficient of friction is affected by the high temperature than more serious, and friction material is in friction process, due to temperature
The rapid raising of degree declines the disadvantages of obvious, and cooperation cooperation is reliable, stable friction factor, substantially increases torque limitation
Stability and reliability, are influenced minimum by temperature, vibration, lubricating oil etc., and long service life, effect on environment is minimum, while structure
Simply, it is easy to accomplish.
Detailed description of the invention
Fig. 1 is the half-sectional status diagram of the frictional limiter of moment of end-tooth of the present invention；
Fig. 2 is the end structure illustration of middle sprocket of the present invention；
Fig. 3 is the sprocket wheel partial sectional view without internal gear disc in the present invention；
Fig. 4 is the sprocket wheel partial sectional view for having internal gear disc in the present invention.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.
Embodiment one:
As shown, the frictional limiter of moment of the end-tooth of the present embodiment, including the axle sleeve 1 being mounted on transmission shaft and empty set
The sprocket wheel 6 for being directly used in output power on axle sleeve, is equipped with the copper sheathing 7 of self-lubricating, in sprocket wheel 6 between sprocket wheel 6 and axle sleeve 1
Side set 5 with teeth is set, the opposite face of sprocket wheel 6 and tooth set 5 is provided with mutually matched end-tooth, the outside setting of tooth set 5
There is the pressing plate being similarly installed on axle sleeve 4, adjusting nut 2, adjusting nut 2 and axle sleeve 1 are also equipped on axle sleeve 1 and is connected using screw thread
It connects, the scale for indicating the corresponding relationship of rotation angle and spring force value, 4 He of pressing plate is provided on the end face of adjusting nut 2
Butterfly spring 3 is mounted between adjusting nut 2, butterfly spring 3 be used to squeeze pressing plate to 6 direction of sprocket wheel and can be described in
Movement of the adjusting nut 2 on axle sleeve 1 adjusts the spring force of butterfly spring.
Embodiment two:
The frictional limiter of moment of the end-tooth of the present embodiment, including the axle sleeve 1 being mounted on transmission shaft and empty set on axle sleeve
The sprocket wheel 6 for output power, the copper sheathing 7 of self-lubricating is installed between sprocket wheel 6 and axle sleeve 1, depending on needed for restraining moment it is big
It is small, it is respectively arranged with a tooth set 5 in the left and right sides of sprocket wheel 6, referred to as two teeth 5 first teeth of set cover and the second tooth set, and two
It is provided with and the mutually matched end-tooth of sprocket wheel 6 between a tooth set 5 and the opposite mating surface of sprocket wheel 6, that is to say, that first
The two sides of tooth set and the second tooth set separation sprocket wheel are arranged and are installed on axle sleeve；First tooth set and the second tooth set play transmitting axle sleeve
The effect moved between 1 and sprocket wheel 8, because of the cooperation that acts on of pressing force when compressing sprocket wheel 6 by the first tooth set and second tooth set
The frictional force generated on end-tooth transfers torque to sprocket wheel 6, transmission shaft rotation, and once overloads, the first tooth set and the
Two teeth set will skid with sprocket wheel 6 on counterface tooth, and sprocket wheel 6 will no longer transmit torque, transmission shaft idle running or stopping.
In fact, the second tooth set be it is optional, needed for regarding depending on restraining moment, matches as the first tooth is covered with the end-tooth of sprocket wheel
Conjunction limits moment values needed for being able to satisfy, and the second tooth set can be cancelled, and to keep structure simple, described sprocket wheel 6 is set in the present embodiment
It is set to inner face tooth, two tooth sets 5 are disposed as outer end face tooth, so that sprocket wheel and the first tooth set and the second tooth set be made to form end face
Tooth engagement realizes friction slave function, and the first tooth set outside is equipped with pressing plate 4, and pressing plate, loaded in coupling sleeve, the outside of pressing plate 4 is equipped with
Butterfly spring 3 squeezes pressing plate 4 to 6 direction of sprocket wheel by butterfly spring 3, adjusting nut 2 is also equipped on axle sleeve 1, adjusts spiral shell
Mother 2 is threadedly coupled with the use of axle sleeve 1 and adjusting nut is along spring is abutted against to sprocket wheel direction, is arranged on the end face of adjusting nut 2
There is the scale for indicating the corresponding relationship of rotation angle and spring force value, is adjusted using movement of the adjusting nut on axle sleeve
Butterfly spring power, the second tooth set outside can not set pressing plate, carry the shaft shoulder using axle sleeve and limit, pressing plate 4 and 1 shaft shoulder of axle sleeve squeeze in opposite directions
The first tooth set 5 and the second tooth set 8 are pressed, so that the first tooth set 5 and the second tooth set 8 be made to compress sprocket wheel 6.
Further, the quantity of described butterfly spring meets force value by remaining can be selected depending on the moment values that limit and wants
The spring asked, such as ripple spring.
Embodiment three:
As shown, the frictional limiter of moment of the end-tooth of the present embodiment, including the axle sleeve 1 being mounted on transmission shaft and empty set
The sprocket wheel 6 for output power on axle sleeve, the i.e. movement of axle sleeve 1 cannot be directly passed to sprocket wheel 6, and axle sleeve 1 is provided with keyway
With the threaded hole for locking；The copper sheathing 7 of self-lubricating is installed between sprocket wheel 6 and axle sleeve 1, is arranged on a side end face of sprocket wheel 6
There is annular groove, pass through fastener 601 in annular groove and internal gear disc 602 is installed, is provided in the side of sprocket wheel 6 and internal gear disc 602 cooperates
Tooth set 5, it is preferable that wear part internal gear disc and sprocket body connects using screw, while also bearing circle using straight pin 603
The quantity of the shearing force of circumferential direction, screw and straight pin can determine that sprocket wheel is adopted a split structure according to torque arithmetic, overhaul
When, wear part internal gear disc is only needed to change, can be used for a long time after sprocket body maintenance, the coefficient of friction that good economy performance is realized simultaneously is steady
It is fixed, it is influenced by temperature minimum, the outside of tooth set 5 is provided with the pressing plate 4 being similarly installed on axle sleeve, is also equipped on axle sleeve 1
Adjusting nut 2, adjusting nut 2, using being threadedly coupled, are provided on the end face of adjusting nut 2 for indicating rotation angle with axle sleeve 1
The scale of degree and the corresponding relationship of spring force value, is mounted with butterfly spring 3,3 quilt of butterfly spring between pressing plate 4 and adjusting nut 2
For squeezing pressing plate to 6 direction of sprocket wheel and butterfly spring can be adjusted using movement of the adjusting nut 2 on axle sleeve 1
Spring force.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (6)
1. a kind of frictional limiter of moment of end-tooth, including the axle sleeve (1) being mounted on transmission shaft and empty set on axle sleeve
It is directly used in the sprocket wheel (6) of output power, it is characterised in that: set (5) with teeth, the chain at least are set in the side of sprocket wheel (6)
Wheel (6) and the opposite face of tooth set (5) are provided with mutually matched end-tooth, are provided with same installation on the outside of the tooth set (5)
Pressing plate (4) on axle sleeve is also equipped with adjusting nut (2) on the axle sleeve (1), the pressing plate (4) and adjusting nut (2) it
Between be mounted with butterfly spring (3), the butterfly spring (3) be used for sprocket wheel (6) direction squeeze pressing plate and can utilize described in
Movement of the adjusting nut (2) on axle sleeve (1) adjusts the spring force of butterfly spring.
2. the frictional limiter of moment of end-tooth described in accordance with the claim 1, it is characterised in that: the two sides of the sprocket wheel (6)
It is respectively arranged with a tooth set (5), two tooth sets (5) are provided with and sprocket wheel (6) mutually matched end-tooth, wherein one
Pressing plate (4) are pressed on the outside of a tooth set (5), another tooth set (5) is pressed on the shaft shoulder of axle sleeve.
3. the frictional limiter of moment of end-tooth according to claim 1 or 2, it is characterised in that: the sprocket wheel (6) and axis
The copper sheathing (7) of self-lubricating is installed between set (1).
4. the frictional limiter of moment of end-tooth according to claim 2, it is characterised in that: the sprocket wheel (6) is set as
Inner face tooth, two tooth sets (5) are set as outer end face tooth.
5. according to the frictional limiter of moment of end-tooth described in claim 1,2 or 4, it is characterised in that: the adjusting nut
(2) it is provided on the end face of the adjusting nut (2) using being threadedly coupled for indicating rotation angle and spring with axle sleeve (1)
The scale of the corresponding relationship of force value.
6. the frictional limiter of moment of end-tooth according to claim 5, it is characterised in that: the end face of the sprocket wheel (6)
On be provided with annular groove, internal gear disc (602) are installed by fastener (601) in the annular groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811500989.7A CN109538655B (en) | 2018-12-10 | 2018-12-10 | End face tooth friction type moment limiter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811500989.7A CN109538655B (en) | 2018-12-10 | 2018-12-10 | End face tooth friction type moment limiter |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109538655A true CN109538655A (en) | 2019-03-29 |
| CN109538655B CN109538655B (en) | 2024-07-02 |
Family
ID=65853365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811500989.7A Active CN109538655B (en) | 2018-12-10 | 2018-12-10 | End face tooth friction type moment limiter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109538655B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1834491A (en) * | 2006-04-26 | 2006-09-20 | 中原工学院 | Coupler with double-row chains |
| US20060287157A1 (en) * | 2005-06-17 | 2006-12-21 | Shinichi Katoh | Planetary gear type reduction gear with torque limiter |
| CN204164202U (en) * | 2014-08-29 | 2015-02-18 | 西南交通大学 | A kind of limiter of moment with spring housing |
| CN205605680U (en) * | 2016-05-09 | 2016-09-28 | 常州机电职业技术学院 | Friction torque-limiting clutch |
| CN210128029U (en) * | 2018-12-10 | 2020-03-06 | 镇江市高等专科学校 | End face tooth friction type torque limiter |
-
2018
- 2018-12-10 CN CN201811500989.7A patent/CN109538655B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060287157A1 (en) * | 2005-06-17 | 2006-12-21 | Shinichi Katoh | Planetary gear type reduction gear with torque limiter |
| CN1834491A (en) * | 2006-04-26 | 2006-09-20 | 中原工学院 | Coupler with double-row chains |
| CN204164202U (en) * | 2014-08-29 | 2015-02-18 | 西南交通大学 | A kind of limiter of moment with spring housing |
| CN205605680U (en) * | 2016-05-09 | 2016-09-28 | 常州机电职业技术学院 | Friction torque-limiting clutch |
| CN210128029U (en) * | 2018-12-10 | 2020-03-06 | 镇江市高等专科学校 | End face tooth friction type torque limiter |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109538655B (en) | 2024-07-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US2857750A (en) | Safety clutch | |
| CN209212829U (en) | Small torque overload protects friction disk clutch | |
| CN204164219U (en) | A kind of step-by-step movement reseting torque limiter | |
| CN203214684U (en) | Gear coupler for crowned teeth | |
| US4401426A (en) | Torque limiting clutch | |
| CN110397684B (en) | Engine and clutch thereof | |
| CN101813146B (en) | Coupling braking load limiter | |
| CN109538655A (en) | A kind of frictional limiter of moment of end-tooth | |
| CN210318250U (en) | Conical surface friction type torque limiter | |
| CN210128029U (en) | End face tooth friction type torque limiter | |
| CN109538657A (en) | A kind of conical-surface friction type limiter of moment | |
| CN109236880A (en) | A kind of torque limit formula shaft coupling | |
| CN109538656A (en) | A kind of frictional scalable limiter of moment of end-tooth | |
| CA2497426C (en) | Torque limiting mechanism | |
| CN209638286U (en) | Transport mine equipment wet type row parking brake device | |
| CN204784288U (en) | Realize wet clutch structure of concentricity output | |
| US2729077A (en) | Constant torque coupling | |
| CN211231351U (en) | End face tooth friction type telescopic torque limiter | |
| CN109519488A (en) | A kind of scalable limiter of moment of conical-surface friction type | |
| CN201317569Y (en) | Automatic tension device for belt conveyors | |
| WO2022143637A1 (en) | Electric tool | |
| CN205479008U (en) | Safety clutch | |
| CN211525377U (en) | Hydraulic wheel hub | |
| CN101723167A (en) | Automatic tensioning device of belt type conveyor | |
| US2563895A (en) | Friction drive |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant |