CN205118074U - Mechanical dish of two effects of single face follow -up type is stopped - Google Patents
Mechanical dish of two effects of single face follow -up type is stopped Download PDFInfo
- Publication number
- CN205118074U CN205118074U CN201520354646.XU CN201520354646U CN205118074U CN 205118074 U CN205118074 U CN 205118074U CN 201520354646 U CN201520354646 U CN 201520354646U CN 205118074 U CN205118074 U CN 205118074U
- Authority
- CN
- China
- Prior art keywords
- pressing tongs
- dish
- push rod
- disc brake
- type dual
- 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.)
- Expired - Fee Related
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Abstract
Mechanical dish of two effects of single face follow -up type is stopped, it stops reset spring by casing 6, left pressing tongs 1, dish 2, right pressing tongs 3, controllable power mechanism of amplification, left pressing tongs follower, right pressing tongs actuating mechanism, dish to connect to form. Wherein the drive power of controllable power mechanism of amplification passes power for the elasticity straight line, and the moment of having overcome existing machinery dish brake line and swing arm reduces to produce moment gradually along with the increase of swing arm pivot angle and enlargies unstablely and change the shortcoming that lacks the flexibility. Right side pressing tongs 3 actuating mechanism drive right pressing tongs 3 compresses tightly the dish dish, a left side 1 follower of pressing tongs drive left pressing tongs 1 withstands dish 2 and keeps the auto -lock, thereby bear the pressure that right pressing tongs 3 was used in dish 2 passively, production reaction force acts on the dish and coils on 2, consequently, two braking moment that the pressing tongs produced about dish 2 has just obtained, overcome current two -sided drive dish stop in two pressing tongss driven simultaneously, the drive power that leads to single pressing tongs reduces the shortcoming of one time and the shortcoming that current single face drive dish was stopped and is easily leaded to the dish dish to warp.
Description
Technical field
The utility model relates to the braking device of a kind of bicycle, tricycle, electric motor car, is a kind ofly to have that one side is servo-actuated, the disc brake apparatus of double-action feature.
Background technique
At present, the break on existing electric bicycle divides three kinds, is that machinery drum is stopped, mechanical disc brake, hydraulic disc brake respectively.Wherein machinery drum is stopped because braking quality is not as the reason of disc brake, is replaced by disc brake apparatus.In disc brake there is the problem of four aspects in most of existing machinery formula disc brake: one, when adopting the structure of unidirectional drive, having occurred that video disc is yielding thus having produced beating, having caused friction plate scratch video disc to produce the phenomenon of drag.Its two, to lack flexibility power transmission owing to driving, cause friction plate to be just difficult to pull brake lever after touching disc, particularly for brake operation difficulty women, but also low speed brake locking phenomenon can be caused.Its three, amplify brake torque owing to adopting swing arm and cause the moment of braking string and swing arm to increase with swing arm pivot angle and reduce gradually, cause the shortcoming that there is torque amplification factors instability, brake torque deficiency.Its four, when adopting double-side driving structure, because two pressing tongs are driven simultaneously, causing the driving force of single pressing tongs to reduce one times, there is the shortcoming of moment amplification deficiency.Meanwhile, though hydraulic disc brake can be admitted by braking effect, there is shortcoming on the high side.Therefore invention one can overcome existing machinery disc brake shortcoming, and the mechanical disc brake that price is lower again simultaneously has obvious realistic meaning.
Summary of the invention
In order to overcome existing driving, tricycle, electric motor car mechanical disc brake exist that disc is yielding, brake torque is not enough, brake torque change lacks the shortcomings such as flexibility, the easy locking of low speed, lever operated difficulty, replace hydraulic disc brake on the high side, the utility model provides one to have the large and large I of braking moment of braking moment and freely controls, and has the one side follow-up type dual action mechanical disc brake exporting flexible torque factor.
The utility model solves the technological scheme that its technical problem adopts:
One side follow-up type dual action mechanical disc brake is connected to form by housing 6, left pressing tongs 1, disc 2, right pressing tongs 3, controllable force enlarger, left pressing tongs follower, right pressing tongs driving mechanism, disc brake Returnning spring.
Controllable force enlarger is connected to form by push pedal 5, big spring 7, push rod 8, big connecting rod 10, connecting rod 12, depression bar 13, large push rod 14.Driving force is elastic linear power transmission, and the moment overcoming existing machinery disc brake braking string and swing arm increases with swing arm pivot angle and reduces gradually, causes the shortcoming that moment amplification is unstable, moment variations lacks flexibility.
Left pressing tongs follower is connected to form by large push rod 14, spring sheet 15, little push rod 17, left pressing tongs 1.
Right pressing tongs driving mechanism is connected to form by large push rod 14, right pressing tongs 3.
Disc brake Returnning spring is made up of torsion spring 11 and big spring sheet 4.Wherein, torsion spring 11 acts on big connecting rod 10 makes it reset, and big spring sheet 4 is left pressing tongs 1, right pressing tongs 3 reposition element.
Working procedure of the present utility model is connect the wire rope 9 of brake lever to pull push pedal 5 to promote push rod 8 through big spring 7 to move upward, push rod 8 promotes big connecting rod 10 and rotates counterclockwise, big connecting rod 10 promotes depression bar 13 through connecting rod 12 and rotates clockwise, depression bar 13 promotes large push rod 14 and moves downward, large push rod 14 is while promote little push rod 17 through spring sheet 15 and move downward, and little push rod 17 promotes that left pressing tongs 1 is servo-actuated withstands disc 2 to the right.Large push rod 14 promotes right pressing tongs 3 and compresses disc 2 to left movement simultaneously.
Total reinforcement multiple of the utility model right pressing tongs 3 driving mechanism is 61 times.The design of left pressing tongs 1 follower makes left pressing tongs 1 can with the movement of right pressing tongs 3, do move toward one another and withstand disc 2, just can stop motion when left pressing tongs 1 touches disc 2, now large push rod 14 drives right pressing tongs 3 to compress disc 2 and press-bending pressing spring sheet 15 simultaneously by ramp structure, therefore left pressing tongs 1 does not consume driving force substantially, just driven bearing acts on the pressure of disc 2 by right pressing tongs 3, thus produce reaction force acts on disc 2, therefore disc 2 just obtains the braking moment that two, left and right pressing tongs produces, wherein friction material 16 makes little push rod 17 be in self-locking state, therefore left pressing tongs 1 can not move under disc 2 reaction force, in a word, because driving force acts predominantly on right pressing tongs 3, left pressing tongs 1 just does and servo-actuatedly withstands disc 2, therefore overcome the single pressing tongs driving force of existing double-side driving mechanical disc brake and reduce one times, the shortcoming that one side driving device disc brake causes disc to be out of shape.
Accompanying drawing explanation
Fig. 1 shows sectional arrangement drawing of the present utility model from front.
Embodiment
The working procedure of disc brake apparatus is as can be seen from Figure 1: the wire rope 9 connecting brake lever pulls push pedal 5 to promote push rod 8 through big spring 7 and moves upward, push rod 8 promotes big connecting rod 10 and rotates counterclockwise, big connecting rod 10 promotes depression bar 13 through connecting rod 12 and rotates clockwise, depression bar 13 promotes large push rod 14 and moves downward, large push rod 14 is while promote little push rod 17 through spring sheet 15 and move downward, and little push rod 17 promotes that left pressing tongs 1 is servo-actuated withstands disc 2 to the right.Large push rod 14 promotes right pressing tongs 3 and compresses disc 2 to left movement simultaneously.
Below in conjunction with example, braking effect of the present utility model is described
Initial condition parameters
Electric motor car gross weight 160kg; 2, the max speed 40km/h=11.1m/s; 3, stopping distance 4m; 4, period of braking 3 seconds; 5, disc braking radius 0.07m; 6, radius of wheel: 0.25m; 7, disc brake apparatus 2, wherein pressing tongs friction plate 4, each friction plate friction factor is 0.4.
Braking moment needed for electric motor car calculates
1, braking acceleration: a=(11.1*3-4)/4.5=6.51m/s2; 2, inertial force: 160*6.51=1041.6N
3, required moment: the 1041.6*0.25=260.4N/m of braking.
Mechanical disc brake braking moment calculates
1, single lever operated power is that 4kg equals 39N
1, braking moment: 39*61*0.07*0.4*2*2=266N/m is greater than 260.4N/m.
Can find out electric motor car gross weight 160 kilograms by above calculating, when the speed of a motor vehicle is emergency braking under the condition of 40 kilometer per hours, it is under the condition of 4kg and 39N that normal female handles brake lever grip, the brake torque applying 2 this mechanical disc brake braking electric motor cars is 266N/m, is greater than moment 260.4N/m needed for brake of electric vehicle.Electric motor car can 3 second time, 4 meters stop apart from interior reliably stopping.Therefore apply this mechanical disc brake break and can obtain reliable stopping power.
Claims (9)
1. one side follow-up type dual action mechanical disc brake, it is connected to form by housing, left pressing tongs, disc, right pressing tongs, controllable force enlarger, left pressing tongs follower, right pressing tongs driving mechanism, disc brake Returnning spring, it is characterized in that, in the housing, the driving force of described controllable force enlarger is elastic linear power transmission, right pressing tongs driving mechanism drives right pressing tongs to compress disc, and left pressing tongs follower drives left pressing tongs withstand disc and keep self-locking.
2. one side follow-up type dual action mechanical disc brake according to claim 1, is characterized in that, the big connecting rod in controllable force enlarger and housing rotate secondary connection, and one end and the connecting rod pair that rotates is connected, and the other end slides in the groove of push rod.
3. one side follow-up type dual action mechanical disc brake according to claim 1, it is characterized in that, U-groove bevel structure is arranged at the large push rod top in controllable force enlarger, and the cylinder of depression bar projection does sliding pair and connects in the U-groove bevel of large push rod.
4. one side follow-up type dual action mechanical disc brake according to claim 1, it is characterized in that, the large push rod in left pressing tongs follower is connected by spring sheet with little push rod.
5. one side follow-up type dual action mechanical disc brake according to claim 1 or 4, is characterized in that, the medium and small push rod of left pressing tongs follower is contacted with the ramp structure of left pressing tongs by the ramp structure of self, and the surface of contact of little push rod and housing has friction material.
6. one side follow-up type dual action mechanical disc brake according to claim 1, is characterized in that, the large push rod in right pressing tongs driving mechanism is contacted with the ramp structure of right pressing tongs by self inclined-plane.
7. one side follow-up type dual action mechanical disc brake according to claim 6, is characterized in that, little push rod, left pressing tongs, large push rod, right pressing tongs ramp structure slope are separately equal.
8. one side follow-up type dual action mechanical disc brake according to claim 1, is characterized in that, the push rod (8) in controllable force enlarger and push pedal have circular hole for filling wire rope.
9. one side follow-up type dual action mechanical disc brake according to claim 1 or 8, is characterized in that, between push rod and push pedal, big spring is housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520354646.XU CN205118074U (en) | 2015-05-28 | 2015-05-28 | Mechanical dish of two effects of single face follow -up type is stopped |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520354646.XU CN205118074U (en) | 2015-05-28 | 2015-05-28 | Mechanical dish of two effects of single face follow -up type is stopped |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205118074U true CN205118074U (en) | 2016-03-30 |
Family
ID=55573689
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520354646.XU Expired - Fee Related CN205118074U (en) | 2015-05-28 | 2015-05-28 | Mechanical dish of two effects of single face follow -up type is stopped |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205118074U (en) |
-
2015
- 2015-05-28 CN CN201520354646.XU patent/CN205118074U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160330 Termination date: 20170528 |