CN207360505U - A kind of center drum brake - Google Patents
A kind of center drum brake Download PDFInfo
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- CN207360505U CN207360505U CN201721323600.7U CN201721323600U CN207360505U CN 207360505 U CN207360505 U CN 207360505U CN 201721323600 U CN201721323600 U CN 201721323600U CN 207360505 U CN207360505 U CN 207360505U
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- brake
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- rotation driving
- mandrel
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Abstract
The utility model discloses a kind of center drum brake, including mandrel, flower-drum bucket, rocking arm, rotation driving axis, drive cone axis, braking cone axis, brake block.The rotation driving axis, drive cone axis, braking cone axis are sleeved on mandrel successively.Drive cone axis resetting spring is set between drive cone axis, braking cone axis.Brake block is arranged between drive cone axis, braking cone axis.Flower-drum bucket is assembled by bearing and rotation driving axis, rotation driving axis is installed on mandrel by bearing; rocking arm is fixed on rotation driving axis, and identical slope arc groove is correspondingly arranged on rotation driving axis inner face and the opposite end face of drive cone axis, steel ball is placed in each slope arc groove.Brake line drives rotation driving axis to rotate by rocking arm, coordinates with slope arc groove and steel ball, driving brake cone axis, drives brake block expansion, realizes brake.The utility model is used for non-motor vehicle as parking brake, its is simple in structure, easy to make, brakes flexibility and reliability.
Description
Technical field
A kind of brake for non-motor vehicle is the utility model is related to, specifically a kind of center drum brake.
Background technology
In existing brake for non-motor vehicle, there is a kind of service brake to use drum brake mode, good braking effect, maintenance cost is low.
Chinese utility model patent《Foot brake for bicycles》（Patent No. ZL 200520102878.2）A kind of service brake is disclosed, its is basic
Structure：Including shaft core, flywheel piece, middle pipe and brake assemblies, flywheel piece is connected by chain with foot chain wheel, and middle pipe passes through axis
Hold installed in the middle part of shaft core, brake assemblies include driving spiral, clutch conical, braking cone, brake block.Drive it is spiral with it is winged
Wheel piece is fixedly connected, and drives spiral right side to be installed on by bearing in shaft core, and it is guide thread section to drive spiral left side, and clutch is justified
Cone is installed in guide thread section, is coordinated at the inward hole slope of middle pipe with clutch conical right end inclined-plane.Braking cone is fixedly mounted
In the shaft core on the left of middle pipe；Connected between braking cone and clutch conical by holddown spring；Braking cone and brake block
At cooperation, gradient is equipped with clutch conical and brake block cooperation.The service brake operation principle：When foot brake is fixed on bicycle rear
After upper, when user normally rides, flywheel piece urged forward is given by chain, drives flywheel piece forward, flywheel piece drives driving again
Spiral, under the action of guide thread, clutch conical moves right, and clutch conical right end is closely connect with middle pipe orifice outer inclined-plane
Touch, driving is produced, so as to drive housing to rotate forward；Need to reverse chain during brake, reversely exert a force to flywheel, drive driving spiral shell
Rotation, struts brake block, brake block and interior wall friction by driving auger clutch conical, so as to produce resistance, causes braking.
But service brake does not widely use at home, because the application method of service brake is different from conventional brake, to brake
When need to step on foot-operated with foot and realize brake, different with conventional brake use habit, when brake, is difficult to control, and is not suitable for
All bicyclists.Moreover, service brake may only be used on trailing wheel, front-wheel can not use.Existing service brake upper intermediate tube endoporus outer inclined-plane,
Drive spirally-guided screw thread, clutch conical guide thread all more difficult to process.
Utility model content
The technical problem to be solved by the utility model is to overcome defect existing in the prior art, it is proposed that Yi Zhongzhong
Heart drum brake, is used for non-motor vehicle as parking brake, its is simple in structure, easy to make, brakes flexibility and reliability.
The utility model center drum brake, including mandrel, flower-drum bucket（Also abbreviation flower-drum）, rocking arm, rotation driving axis, transmission circle
The axis of cone, braking cone axis, brake block.Rotation driving axis, drive cone axis, braking cone axis are sleeved on mandrel and are located at successively
Inside flower-drum bucket.Braking cone axis is fixedly mounted on mandrel, and drive cone axis is only slided along mandrel and cannot rotated around mandrel.Pass
It is dynamic that drive cone axis resetting spring is set between cone axis, braking cone axis.The brake block is arranged on drive cone axis, brake
It is cylindric by two panels or two panels composition described above between cone axis, brake block resetting spring is wound on its outer wall, its inner tube wall is two
A end is the conical surface, is adapted to drive cone axis and braking cone conical surface of shaft.The above-mentioned conical surface is known as driving inclined-plane.Drive cone axis
Be correspondingly arranged brake block limited block on the conical surface of braking cone axis, limitation brake block is rotated around mandrel.
Flower-drum bucket one end is installed on mandrel by bearing, the flower-drum bucket other end by bearing and rotation driving axis connection,
Rotation driving axis is installed on mandrel by bearing, and rocking arm is fixed on rotation driving axis, rotation driving axis inner face（Flower-drum bucket
The end face of interior one end）Equipped with the groove depths of two or more than two by the shallow slope arc groove gradually deepened（The slope circular arc
Groove preferably three, it is rounded on end face to be evenly arranged）, drive cone axis is on the end face opposite with rotation driving axis inner face
Identical slope arc groove is correspondingly arranged, homogeneous a steel ball is placed in each slope arc groove.
Center drum brake operating principle：
Brake handle is held during brake, an active force is applied by brake line, makes rocking arm drive rotation driving axis to rotate, by
Rotation driving axis driving steel ball axially moves drive cone axis, compression drive cone axis resetting spring, on drive cone axis
Driving inclined-plane promote brake block to make radial motion, brake block is because being limited and cannot be turned by brake block limited block on braking cone axis
Dynamic, radial motion contacts brake block and flower-drum bucket inner wall, by friction so as to produce resistance, realizes braking.Brake handle pine
When opening, brake line no longer applies active force, and brake block resetting spring drives each brake block to reset, and drive cone axis is also justified in transmission
Resetted under axis of cone action of reset spring, rotation driving axis is also resetted with rocking arm under the effect of rocking arm reduction torsion spring, and vehicle again can be just
Often movement.
Rotation driving axis is driven to rotate using rocking arm, rotation driving axis left side is equipped with 3 slope arc grooves, drives 3
Steel ball is climbed, and the drive cone axis that steel ball promotes right end to be again provided with 3 slope arc grooves axially moves, the drive on transmission shaft
Dynamic inclined-plane promotes brake block to make radial motion, brake block and the contact of flower-drum bucket inner wall, by friction so as to produce resistance, realizes system
It is dynamic.Coordinated with slope arc groove and steel ball rolling, feeling is better when making brake, and braking is sensitiveer.
Steel ball can also equally be replaced with roller bearing, slope replaces slope arc groove, and same effect, or even can be with
Roller bearing is removed, is directly driven with the slope of one and the above（Rotation driving axis and the opposite end face of drive cone axis are arranged to
The slope being mutually adapted）, effect almost, but can equally realize brake function.
As used on trailing wheel, cutting thread on the left of flower-drum bucket, common flywheel installed above can.
The utility model is used for non-motor vehicle as parking brake, its is simple in structure, easy to make, brakes flexibility and reliability.
Brief description of the drawings
Fig. 1 is the utility model center drum brake diagrammatic cross-section（It is local）.
Fig. 2 is the utility model center drum brake diagrammatic cross-section（Band flywheel, for trailing wheel）.
Fig. 3 is the utility model center drum brake assembly relation schematic diagram.Wherein：2- flower-drum buckets；3- brake block resetting springs；
4- braking cone axis（401- brake block driving inclined-planes, 402. brake block limited blocks, 403- brake block fitting surfaces, 404- splines
Hole）；5- brake blocks（501- brake blocks inclined-plane, 502- brake block resetting spring grooves, 503- brake blocks inclined-plane,）；6- brake transmissions
Axis resetting spring；7- brake transmission shafts（701- brake block driving inclined-planes, 703- brake block fitting surfaces, 704. splined holes）；8- steel
Ball；9- right bearings；10- rotation driving axis（1001- rocking arm limiting slots, 1002- rocking arm installation axles, the effect of 1003- right bearings
Face, 1004- slopes arc groove, 1005- axis installation relief hole）；The small bearing in the 11- right sides；12- right axles are kept off（1201- splines
Hole, 1202. are fixedly mounted arm installation waist profile shaft, and 1203- right-small-axis, which are made, uses cambered surface）；13- rocking arms（1301- rocking arms, which reset, to be turned round
Spring hole, 1302- brake line locking screw nail, 1303- rocking arms installation limiting tooth）；14- brake line lock-screws；15- brakes line is locked
Block；16- rocking arm reduction torsion springs；Arm is fixedly mounted in 17-（1701- vehicle frames connect mounting hole, the installation of 1702- brake lines adjusting screw
Arm installation waist-shaped hole is fixedly mounted in hole, 1703- reduction torsion spring mounting holes, 1704-）；18- adjusting screw locking nuts；19-
Adjusting screw；20- locking nuts, 21- locking nuts, 22- locking nuts；23- locking nuts；24- left bearings；25- is left
Axle bumper；26. mandrel（2601- threaded shaft sections, 2602. splined shaft sections, 2603- threaded shaft sections）.
Fig. 4 is rotation driving axis and drive cone axis assembly relation schematic diagram.
Fig. 5 is the structural relation schematic diagram before turning drive shaft driving drive cone axis movement.
Fig. 6 is the structural relation schematic diagram before turning drive shaft driving drive cone axis movement（Partial cutaway）.
Fig. 7 is the structural relation schematic diagram turned after drive shaft driving drive cone axis movement（Partial cutaway）.
Fig. 8 is rotation driving axis and drive cone axis assembly relation schematic diagram（Roller bearing scheme）.
Fig. 9 is rotation driving axis and drive cone axis assembly relation schematic diagram（Slope drive scheme）.
Embodiment
Below in conjunction with the accompanying drawings, the utility model is described in further detail.
As shown in Figure 1, center drum brake includes mandrel component, arm 17, rocking arm 13, flower-drum bucket 2 and brake group is fixedly mounted
Part.
Mandrel component includes mandrel 26, left axle gear 25, right axle gear 12, locking nut（20,21,22,23）.
Brake assemblies include rotation driving axis 10, drive cone axis 7, braking cone axis 4, brake block 5.Rotation driving axis
10th, drive cone axis 7, braking cone axis 4 are sleeved on mandrel and inside flower-drum buckets 2 successively.
2 left end of flower-drum bucket is installed on mandrel 26 by left bearing 24, left axle gear 25, locking nut 21, the right side of flower-drum bucket 2
Assembled by right bearing 9 and rotation driving axis 10, the right side of rotation driving axis 10 passes through the small bearing 11 in the right side, right axle gear 12, locking
Nut 20,21 is installed on mandrel.Rocking arm 13 is fixedly mounted on rotation driving axis 10, and 10 left side of rotation driving axis is equipped with three
A slope arc groove 1004, drive cone axis right side are again provided with three slope arc grooves, corresponding each slope arc groove
One steel ball 8 of interior placement.Braking cone axis 4 is fixedly mounted on mandrel 26, and left side is positioned by locking nut 23,21.Stop
Drive cone axis resetting spring 6 is set between taper turning axis 4 and drive cone axis 7.In braking cone axis 4 and drive cone axis 7
Between brake block is set, brake block is made of two panels circular arc tile.It is spacing that brake block is correspondingly arranged on the conical surface of braking cone axis 4
Block（402）, limitation brake block is around mandrel rotation.Braking cone axis 4 and the contact surface at the cooperation of brake block 5, drive cone axis 7
It is driving inclined-plane with the contact surface at 5 cooperation of brake block（401、501、503、701）, the middle brake block resetting spring of brake block 5
Brake block resetting spring 3 is cased with groove 502.Braking cone axis 4, drive cone axis 7 pass through middle splined hole 404,704 and mandrel
26 upper spline axis 2602 connect, and drive cone axis 7 can only be slided along mandrel, it is impossible to be rotated.Mandrel splined shaft 2602 and right-hand axis
Gear splined hole 1201 connects, and right-hand axis is blocked waist profile shaft 1202 and is connected with arm waist-shaped hole 1704 is fixedly mounted, and arm 17 is fixedly mounted
Mounting hole 1701 is connected by its upper frame to fix with vehicle frame, mandrel is locked at vehicle frame by mandrel by both ends locking nut 22 again
On.
Center drum brake operating principle：
Brake handle is held during brake, an active force is applied by brake line, rocking arm 13 is driven 10 turns of rotation driving axis
It is dynamic, drive steel ball 8 to axially move drive cone axis 7 by rotation driving axis 10, the driving inclined-plane 701 on drive cone axis 7
Promote 2 brake blocks 5 to make radial motion, brake block 5 because that cannot be rotated by the limitation of brake block limited block 402 on braking cone axis 4,
Radial motion contacts 2 brake blocks 5 and 2 inner wall of flower-drum bucket, by friction so as to produce resistance, realizes braking.Brake handle
During release, brake line no longer applies active force, and brake block resetting spring 3 drives 2 brake blocks 5 to reset, and drive cone axis 7 is also passing
Dynamic cone axis resetting spring 6 acts on lower reset, and rotation driving axis 10 is also resetted with rocking arm 13 under the effect of rocking arm reduction torsion spring 16,
Vehicle again can proper motion.
If by the drum brake use of the utility model center on trailing wheel, cutting thread on the left of flower-drum bucket is installed above common
Flywheel 27 can.
Claims (3)
1. a kind of center drum brake, including mandrel（26）, flower-drum bucket（2）, rocking arm（13）, rotation driving axis（10）, drive cone axis
（7）, braking cone axis（4）, brake block（5）；It is characterized in that：The rotation driving axis（10）, drive cone axis（7）, brake circle
The axis of cone（4）Mandrel is sleeved on successively（26）Go up and be located inside flower-drum bucket；Braking cone axis（4）It is fixedly mounted on mandrel（26）
On, drive cone axis（7）Only slide and cannot be rotated around mandrel along mandrel；Drive cone axis（7）, braking cone axis（4）Between set
Put drive cone axis resetting spring；The brake block（5）It is arranged on drive cone axis（7）, braking cone axis（4）Between, brake
Piece（5）It is cylindric by two panels or two panels composition described above, brake block resetting spring is wound on its outer wall（3）, its inner tube wall is at two
End is the conical surface, is adapted to drive cone axis and braking cone conical surface of shaft；
Flower-drum bucket（2）One end passes through bearing（24）Installed in mandrel（26）On, flower-drum bucket（2）The other end passes through bearing（9）With rotation
Turn drive shaft（10）Assembling, rotation driving axis（10）Pass through bearing（11）On mandrel, rocking arm（13）Rotation is fixed on to drive
Moving axis（10）On, rotation driving axis（10）Inner face is equipped with the groove depth of two or more than two by the shallow slope circular arc gradually deepened
Groove（1004）, drive cone axis is correspondingly arranged identical slope arc groove on the end face opposite with rotation driving axis inner face,
Homogeneous a steel ball is placed in each slope arc groove（8）.
2. center drum brake according to claim 1, it is characterized in that：Brake is correspondingly arranged on the conical surface of the braking cone axis
Piece limited block（402）, limitation brake block is around mandrel rotation.
3. center drum brake according to claim 1, it is characterized in that：The slope arc groove preferably three, is on end face
Circle is evenly arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721323600.7U CN207360505U (en) | 2017-10-16 | 2017-10-16 | A kind of center drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721323600.7U CN207360505U (en) | 2017-10-16 | 2017-10-16 | A kind of center drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207360505U true CN207360505U (en) | 2018-05-15 |
Family
ID=62348226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721323600.7U Active CN207360505U (en) | 2017-10-16 | 2017-10-16 | A kind of center drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207360505U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107600289A (en) * | 2017-10-16 | 2018-01-19 | 凡爱华 | A kind of center drum brake |
-
2017
- 2017-10-16 CN CN201721323600.7U patent/CN207360505U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107600289A (en) * | 2017-10-16 | 2018-01-19 | 凡爱华 | A kind of center drum brake |
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