CN211145180U - Rotary friction brake with circular truncated cone-shaped brake ring - Google Patents
Rotary friction brake with circular truncated cone-shaped brake ring Download PDFInfo
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- CN211145180U CN211145180U CN201921279344.5U CN201921279344U CN211145180U CN 211145180 U CN211145180 U CN 211145180U CN 201921279344 U CN201921279344 U CN 201921279344U CN 211145180 U CN211145180 U CN 211145180U
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- brake ring
- brake
- ring
- driving
- friction
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Abstract
A rotary friction brake of a cone-shaped brake ring belongs to the technical field of accessories of motorcycles, electric bicycles and bicycles. The brake comprises an inner brake ring and an outer brake ring which are coaxially sleeved, wherein the rotating friction surface of the inner brake ring is of at least one truncated cone-shaped structure, the rotating friction surface of the outer brake ring is of at least one inwards concave truncated cone-shaped structure, the included angles between the side generatrix of the truncated cones of the inner brake ring and the axis of the outer brake ring are the same, the inner brake ring and the outer brake ring are mutually matched with each other to perform friction braking by the side surfaces of the truncated cones, and the circumference of the truncated cones is fully contacted and rubbed; the inner brake ring and the outer brake ring are a driving brake ring and a driven brake ring, the driven brake ring is fixedly connected with the hub, and the rotational freedom degree of the driving brake ring is restrained. The utility model discloses simple structure is reliable, and the cost of manufacture is low, and wear resistance can be better, can improve small-size vehicles's such as motorcycle, electric bicycle, bicycle's security of traveling greatly.
Description
Technical Field
The utility model belongs to the technical field of motorcycle, electric bicycle, bicycle accessory, in particular to rotary friction brake of round platform shape braking ring.
Background
Small and convenient vehicles such as motorcycles, electric bicycles and bicycles are widely used nowadays, the safety problem in use is concerned, and the brake is one of the key parts affecting the running safety. The contact area of the brake shoe and the driven brake ring accounts for 60-70% of the friction surface of the driven brake ring on the circumference under the condition of the self volume of the small-sized vehicle, the input brake force is large, the force acting on the friction surface is large, and the brake applicable to the small-sized vehicle with small volume and the effect of amplifying the driving brake force cannot be obtained.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects in the prior art, the utility model provides a have small in size concurrently and possess the stopper that the small-size vehicle that amplifies the drive braking force effect was suitable for again.
The utility model discloses a realize that the technical scheme that above-mentioned purpose was taken is: a rotary friction brake with a truncated cone-shaped brake ring is characterized in that: the brake comprises an inner brake ring and an outer brake ring which are coaxially sleeved, wherein the rotating friction surface of the inner brake ring is of at least one truncated cone-shaped structure, the rotating friction surface of the outer brake ring is of at least one inwards concave truncated cone-shaped structure, the included angles between the side generatrix of the truncated cones of the inner brake ring and the axis of the outer brake ring are the same, the inner brake ring and the outer brake ring are mutually matched with each other to perform friction braking by the side surfaces of the truncated cones, and the circumference of the truncated cones is fully contacted and rubbed; the inner brake ring and the outer brake ring are a driving brake ring and a driven brake ring which are mutually connected, the rotation freedom degree of the driving brake ring is restrained, the braking external force in the braking process is applied to the driving brake ring along the axis direction, and the driving brake ring is pushed to move along the axis and rub with the driven brake ring with the side surface of the round table to realize braking.
The side generatrix of the circular truncated cone can be a straight line, and can also be an arc line or a broken line, and the included angle between the side generatrix of the circular truncated cone and the axis is 12-25 degrees.
The driving brake ring is provided with a thread which is coaxial with the axis and is sleeved on the thread matched with the driving brake ring, all degrees of freedom of the thread are restrained, the driving brake ring is directly twisted, the driving brake ring moves along the axis direction under the action of the thread, and the friction brake with the driven brake ring in mutual contact with the side surface of the circular truncated cone is realized.
The driving brake ring is sleeved on a shaft coaxial with the driven brake ring, the shaft hub is in translational connection, and the driving brake ring is pushed by the linkage operating mechanism to move along the axis direction, so that the friction brake with the driven brake ring in mutual contact with the side surface of the circular truncated cone is realized.
The linkage operating mechanism is a rotating part with threads, the axial degree of freedom of the rotating part is restricted, the threads of the rotating part are matched and meshed with the threads on the driving brake ring, the rotating part is twisted, the driving brake ring moves along the axial direction under the action of the threads, the friction braking with the side surface of the round platform in mutual contact with the driven brake ring is realized, and the threads on the rotating part can be internal threads or external threads.
The linkage operating mechanism is a cam mechanism, the rotation of the cam can push the driving brake ring to move along the axis direction, the driving brake ring and the driven brake ring are in contact friction braking with the side surface of the circular truncated cone, the driving brake ring is driven by a spring along the return stroke of the axis direction, and the cam mechanism can be a radial cam or an end surface axial cam.
The linkage operating mechanism is a wedge-shaped inclined plane mechanism, when the wedge-shaped inclined plane part moves, the driving brake ring is pushed to move along the axis direction, the friction braking with the driven brake ring in mutual contact with the side face of the circular truncated cone is realized, and the return stroke of the driving brake ring along the axis direction is driven by a spring.
The linkage operating mechanism is a rocker arm connecting rod mechanism, one end of a connecting rod is hinged with the rocker arm, the other end of the connecting rod is hinged with the driving brake ring, the rotation of the rocker arm pushes the driving brake ring to move along the axis direction through the connecting rod, and the friction braking of the driving brake ring and the driven brake ring in mutual contact with the side face of the round table is realized.
The linkage operating mechanism is a hydraulic mechanism which pushes the driving brake ring to move along the axis direction, so that the friction braking with the driven brake ring in contact with the side surface of the round table is realized.
The utility model discloses can improve the contact pressure of friction surface greatly under the certain condition of the braking force of input, the contact pressure that the contained angle is obtained more greatly more less, and the direct effect that contact pressure is big is exactly under the same condition, and prior art can obtain bigger frictional resistance relatively, has the effect or the reinforcement effect of enlargeing drive braking power promptly, can obtain the frictional resistance more than 1-5 times bigger than prior art. Under the condition of certain braking load, compared with the brake in the prior art, the rotary friction brake of the truncated cone-shaped braking ring has the advantages that the size can be reduced by one third, the structure is simple and reliable, the manufacturing cost is low, the abrasion resistance is better, and the running safety of small-sized vehicles such as motorcycles, electric bicycles and the like can be greatly improved.
Drawings
Fig. 1 is a schematic view of the basic structure of the inner and outer braking rings of the present invention (the side generatrix of the circular truncated cone is a straight line).
Fig. 2 is a view of the inner retaining ring of fig. 1.
Fig. 3 is a schematic view of the basic structure of the inner and outer braking rings of the present invention (the side generatrix of the circular truncated cone is an arc line).
Fig. 4 is a perspective view of fig. 3.
Fig. 5 is a schematic view of the basic structure of the inner and outer braking rings of the present invention (the side generatrix of the circular truncated cone is a broken line).
Fig. 6 is a perspective view of fig. 5.
Fig. 7 is a structural view of a friction brake in embodiment 3.
Fig. 8 is a perspective view of fig. 7.
Fig. 9 is a view showing the construction of the inner brake ring of fig. 7.
FIG. 10 is a view showing the construction of the friction ring of FIG. 7.
Fig. 11 is a structural view of a friction brake in embodiment 4.
Fig. 12 is a perspective view of fig. 11.
FIG. 13 is a view of the inner brake band of FIG. 11.
FIG. 14 is a view showing the construction of the friction ring of FIG. 11.
Fig. 15 is a basic configuration diagram of a friction brake with a linked operating mechanism.
Fig. 16 is a cross-sectional view of fig. 15.
Fig. 17 is a structural view of a friction brake in embodiment 5.
Fig. 18 is a front view of fig. 17.
Fig. 19 is a perspective view of fig. 17.
Figure 20 is a view of the threaded rotating member of figure 17.
Fig. 21 is a spline shaft view of fig. 17.
Fig. 22 is a structural view of a friction brake in embodiment 6.
Fig. 23 is a perspective view of fig. 22.
FIG. 24 is a view of the inner stop collar of FIG. 22.
Fig. 25 is a perspective view of fig. 24.
Figure 26 is a view of the end cam rotor of figure 22.
Fig. 27 is a perspective view of fig. 26.
Fig. 28 is a spline shaft view of fig. 22.
Fig. 29 is a perspective view of fig. 28.
Fig. 30 is a structural view of a friction brake in embodiment 7.
Fig. 31 is a front view of fig. 30.
Fig. 32 is a side view of fig. 30.
Fig. 33 is a rear view of fig. 30.
Fig. 34 is a bottom view of fig. 30.
Fig. 35 is a top cam view of fig. 30.
Fig. 36 is a view of the lower cam of fig. 30.
FIG. 37 is a cam shaft view of FIG. 30.
Fig. 38 is a structural view of a friction brake in embodiment 8.
Fig. 39 is a front view of fig. 38.
Fig. 40 is a side view of fig. 38.
Fig. 41 is a perspective view of fig. 38.
FIG. 42 is a view of the inner stop collar of FIG. 38.
Fig. 43 is a cross-sectional view of fig. 42.
FIG. 44 is a view of the ramp member of FIG. 38.
Fig. 45 is a cross-sectional view of fig. 44.
Fig. 46 is a structural view of a friction brake in embodiment 9.
Fig. 47 is a front view of fig. 46.
Fig. 48 is a cross-sectional view of fig. 47.
Fig. 49 is a side view of fig. 47.
FIG. 50 is a view of the inner stop collar of FIG. 46.
Fig. 51 is a view of the rocker shaft of fig. 46.
Fig. 52 is a view of the lower rocker arm of fig. 46.
In the figure: the brake device comprises an inner brake ring 1, an outer brake ring 2, a rocker arm 3 of a torsional friction ring, a fixing surface 4, a threaded engagement surface 5, a spline shaft 6, a driving rocker arm 7, a shaft retainer ring 8, an end face cam rotating piece 9, a cam shaft 10, an upper cam 11, a lower cam 12, a slope piece 13, a hinge shaft 14, a connecting rod 15, a rocker shaft 16, a lower rocker arm 17 and an upper rocker arm 18.
Detailed Description
The invention is further described with reference to the following embodiments and drawings:
example 1
As shown in fig. 1-2, a rotary friction brake of a truncated cone-shaped brake ring comprises an inner brake ring 1 and an outer brake ring 2 which are coaxially sleeved, wherein the rotary friction surface of the inner brake ring 1 is of at least one truncated cone-shaped structure, the rotary friction surface of the outer brake ring 2 is of at least one concave truncated cone-shaped structure, a side bus is a straight line, the included angles between the side buses of the truncated cones of the inner and outer brake rings and an axis are the same, the inner and outer brake rings are mutually matched with each other for friction braking at the side surfaces of the truncated cones within 12-25 degrees, and the circumference of the truncated cones is fully contacted for friction; the inner brake ring and the outer brake ring are a driving brake ring and a driven brake ring which are mutually connected, the rotation freedom degree of the driving brake ring is restrained, the braking external force in the braking process is applied to the driving brake ring along the axis direction, and the driving brake ring is pushed to move along the axis and rub with the driven brake ring with the side surface of the round table to realize braking.
Example 2
As shown in fig. 3-4, the generatrix of the circular truncated cone of the rotary friction brake of the circular truncated cone-shaped brake ring in the embodiment is an arc line; in addition, as shown in fig. 5-6, the side generatrix of the circular truncated cone may be a broken line.
Example 3
As shown in fig. 7-10, the basic structure of the rotary friction brake of the circular truncated cone-shaped brake ring in this embodiment is the same as that in embodiment 1, the driving brake ring is provided with a thread coaxial with the axis, and is sleeved on the thread matched with the driving brake ring, and the full degree of freedom of the thread is restricted, the driving brake ring is directly twisted, and the driving brake ring moves along the axis direction under the action of the thread, so as to realize the friction braking with the driven brake ring in contact with the side surface of the circular truncated cone.
Example 4
As shown in fig. 11 to 16, the basic structure of the rotary friction brake with a truncated cone-shaped brake ring in this embodiment is the same as that in embodiment 1, the driving brake ring is sleeved on a shaft coaxial with the driven brake ring, and the shaft hub is connected in a straight-moving manner, and the driving brake ring is pushed by the linkage operating mechanism to move along the axial direction, so as to realize the friction braking with the driven brake ring in contact with the side surface of the truncated cone.
Example 5
As shown in fig. 17 to 21, the basic structure of the rotary friction brake with a truncated cone-shaped brake ring in this embodiment is the same as that in embodiment 4, the linkage operating mechanism is a threaded rotating member with a restricted axial degree of freedom, the thread of the rotating member is in matching engagement with the thread on the driving brake ring, the rotating member is twisted, the driving brake ring moves along the axial direction under the action of the thread, and friction braking is achieved with the driven brake ring in contact with the side surface of the truncated cone, and the thread on the rotating member may be an internal thread or an external thread.
Example 6
As shown in fig. 22 to 29, the basic structure of the rotary friction brake with a truncated cone-shaped brake ring in this embodiment is the same as that in embodiment 4, the linkage operating mechanism is a cam mechanism, the rotation of the cam can push the driving brake ring to move along the axial direction, so as to realize mutual contact friction braking with the driven brake ring along the side surface of the truncated cone, the return stroke of the driving brake ring along the axial direction is driven by a spring, and the cam mechanism is an end surface axial cam.
Example 7
As shown in fig. 30 to 37, the basic structure of the rotary friction brake of a truncated cone shaped brake ring according to the present embodiment is the same as that of embodiment 6, and the cam mechanism is a radial cam.
Example 8
As shown in fig. 38 to 45, the basic structure of the rotary friction brake with a truncated cone-shaped brake ring in this embodiment is the same as that in embodiment 4, the linkage operating mechanism is a wedge-shaped inclined plane mechanism, when the wedge-shaped inclined plane moves, the driving brake ring is pushed to move along the axial direction, so that the friction brake with the driven brake ring in contact with the side surface of the truncated cone is realized, and the return stroke of the driving brake ring along the axial direction is driven by a spring.
Example 9
As shown in fig. 46 to 52, the basic structure of the rotary friction brake with a truncated cone shaped brake ring in this embodiment is the same as that in embodiment 4, the linkage operation mechanism is a rocker arm-link mechanism, one end of a link is hinged to a rocker arm, the other end of the link is hinged to the driving brake ring, and the rotation of the rocker arm pushes the driving brake ring to move along the axial direction through the link, so as to realize the mutual contact friction braking with the side surface of the truncated cone of the driven brake ring.
Example 10
The basic structure of the rotary friction brake with the circular truncated cone-shaped brake ring in this embodiment is the same as that in embodiment 4, the linkage operating mechanism is a hydraulic mechanism, and the hydraulic mechanism pushes the driving brake ring to move along the axial direction, so that the driving brake ring and the driven brake ring are in contact with each other at the side surface of the circular truncated cone for friction braking.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; such modifications and substitutions do not depart from the spirit and scope of the present invention.
Claims (9)
1. A rotary friction brake with a truncated cone-shaped brake ring is characterized in that: the brake comprises an inner brake ring and an outer brake ring which are coaxially sleeved, wherein the rotating friction surface of the inner brake ring is of at least one truncated cone-shaped structure, the rotating friction surface of the outer brake ring is of at least one inwards concave truncated cone-shaped structure, the included angles between the side generatrix of the truncated cones of the inner brake ring and the axis of the outer brake ring are the same, the inner brake ring and the outer brake ring are mutually matched with each other to perform friction braking by the side surfaces of the truncated cones, and the circumference of the truncated cones is fully contacted and rubbed; the inner brake ring and the outer brake ring are a driving brake ring and a driven brake ring which are mutually connected, the rotation freedom degree of the driving brake ring is restrained, the braking external force in the braking process is applied to the driving brake ring along the axis direction, and the driving brake ring is pushed to move along the axis and rub with the driven brake ring with the side surface of the round table to realize braking.
2. The rotary friction brake of claim 1, wherein: the side generatrix of the circular truncated cone is a straight line or an arc line or a broken line, and the included angle between the side generatrix of the circular truncated cone and the axis is 12-25 degrees.
3. A rotary friction brake with a frustoconical braking band as claimed in claim 1 or 2, characterized in that: the driving brake ring is provided with a thread which is coaxial with the axis and is sleeved on the thread matched with the driving brake ring, all degrees of freedom of the thread are restrained, the driving brake ring is directly twisted, the driving brake ring moves along the axis direction under the action of the thread, and the friction brake with the driven brake ring in mutual contact with the side surface of the circular truncated cone is realized.
4. A rotary friction brake with a frustoconical braking band as claimed in claim 1 or 2, characterized in that: the driving brake ring is sleeved on a shaft coaxial with the driven brake ring, the shaft hub is in translational connection, and the driving brake ring is pushed by the linkage operating mechanism to move along the axis direction, so that the friction brake with the driven brake ring in mutual contact with the side surface of the circular truncated cone is realized.
5. The rotary friction brake with a frustoconical braking band as claimed in claim 4, characterized in that: the linkage operating mechanism is a rotating part with threads, the axial degree of freedom of the rotating part is restricted, the threads of the rotating part are matched and meshed with the threads on the driving brake ring, the rotating part is twisted, the driving brake ring moves along the axial direction under the action of the threads, the friction braking with the side surface of the round platform in mutual contact with the driven brake ring is realized, and the threads on the rotating part are internal threads or external threads.
6. The rotary friction brake with a frustoconical braking band as claimed in claim 4, characterized in that: the linkage operating mechanism is a cam mechanism, the rotation of the cam can push the driving brake ring to move along the axis direction, the driving brake ring and the driven brake ring are in contact friction braking with the side surface of the circular truncated cone, the driving brake ring is driven by a spring along the return stroke of the axis direction, and the cam mechanism is a radial cam or an end surface axial cam.
7. The rotary friction brake with a frustoconical braking band as claimed in claim 4, characterized in that: the linkage operating mechanism is a wedge-shaped inclined plane mechanism, when the wedge-shaped inclined plane part moves, the driving brake ring is pushed to move along the axis direction, the friction braking with the driven brake ring in mutual contact with the side face of the circular truncated cone is realized, and the return stroke of the driving brake ring along the axis direction is driven by a spring.
8. The rotary friction brake with a frustoconical braking band as claimed in claim 4, characterized in that: the linkage operating mechanism is a rocker arm connecting rod mechanism, one end of a connecting rod is hinged with the rocker arm, the other end of the connecting rod is hinged with the driving brake ring, the rotation of the rocker arm pushes the driving brake ring to move along the axis direction through the connecting rod, and the friction braking of the driving brake ring and the driven brake ring in mutual contact with the side face of the round table is realized.
9. The rotary friction brake with a frustoconical braking band as claimed in claim 4, characterized in that: the linkage operating mechanism is a hydraulic mechanism which pushes the driving brake ring to move along the axis direction, so that the friction braking with the driven brake ring in contact with the side surface of the round table is realized.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2019206162046 | 2019-04-30 | ||
| CN201920616204 | 2019-04-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211145180U true CN211145180U (en) | 2020-07-31 |
Family
ID=71744026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921279344.5U Expired - Fee Related CN211145180U (en) | 2019-04-30 | 2019-08-08 | Rotary friction brake with circular truncated cone-shaped brake ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211145180U (en) |
-
2019
- 2019-08-08 CN CN201921279344.5U patent/CN211145180U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200731 Termination date: 20210808 |
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| CF01 | Termination of patent right due to non-payment of annual fee |