NL2032788B1 - Braking device - Google Patents
Braking device Download PDFInfo
- Publication number
- NL2032788B1 NL2032788B1 NL2032788A NL2032788A NL2032788B1 NL 2032788 B1 NL2032788 B1 NL 2032788B1 NL 2032788 A NL2032788 A NL 2032788A NL 2032788 A NL2032788 A NL 2032788A NL 2032788 B1 NL2032788 B1 NL 2032788B1
- Authority
- NL
- Netherlands
- Prior art keywords
- braking
- driving
- elements
- driven gears
- drive
- Prior art date
Links
- 230000007246 mechanism Effects 0.000 claims description 8
- 230000007423 decrease Effects 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000003247 decreasing effect Effects 0.000 abstract description 2
- 230000007774 longterm Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000020169 heat generation Effects 0.000 description 2
- 238000005381 potential energy Methods 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
Classifications
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- 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
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
- F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
- F16D51/18—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with two brake-shoes
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- 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
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
- F16D51/16—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis
- F16D51/32—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with three or more brake shoes
- F16D51/34—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with three or more brake shoes extending in opposite directions from their pivots
- F16D51/36—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like shaped as brake-shoes pivoted on a fixed or nearly-fixed axis with three or more brake shoes extending in opposite directions from their pivots mechanically actuated
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- 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
- F16D51/00—Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like
- F16D51/46—Self-tightening brakes with pivoted brake shoes, i.e. the braked member increases the braking action
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Transmission Devices (AREA)
Abstract
The present invention provides a braking device. The device includes a movable member, and the movable member is provided with a braking part, and the device 5 further includes a braking member for stopping movement of the movable member, the braking member is a rotary member, the braking member rotates during braking, and an outer wall of the braking member abuts against the braking part. The present invention has the beneficial effects that since an approximate cam structure is used for braking, a brake pedal is pressed harder and harder during braking, a braking distance is reduced, 10 and friction between the braking member and the braking part is decreased accordingly, thereby generating no long-term continuous friction, and further improving braking performance of a product.
Description
BRAKING DEVICE
[01] The present invention belongs to the technical field of braking mechanisms, and particularly relates to a braking device with low heat generation.
[02] Braking devices are used in many fields, especially, the fields of automobiles, elevators, etc. At present, there are generally two automobile braking modes, including drum braking and disc braking. The drum braking has the disadvantage that because too much heat is generated during braking and an automobile needs to brake for a long time when going down a long slope, serious heat generation of a brake pad often causes a braking distance to increase or causes a brake failure. In the disc braking, a disc brake is exposed, resulting in a more desirable heat dissipation effect than that of the drum braking, but its braking distance 1s affected by its complicated structure and high cost, and great influences of a high temperature of a brake disc in summer. The main reason for heating of drum brakes and disc brakes is a large friction point, which is surface-to-surface friction, leading to friction of most surfaces of braking parts and further the temperature rise of a product.
[03] To solve a technical problem, the present invention provides a braking device.
[04] The present invention is achieved by the following technical solutions:
[05] The braking device includes a movable member, and the movable member is provided with a braking part. The device further includes braking members for stopping movement of the movable member, the braking members are rotary members, the braking members rotate during braking, and outer walls of the braking members abut against the braking part.
[06] Each brake member has a braking area and a natural area, and there is a gap between the natural area of the braking member and the braking part in a natural state. The braking area of each braking member rotates to abut against the braking part in a braking state.
[07] A distance between an outer wall of the natural area and a rotation point of each braking member is smaller than that between an outer wall of the braking area and the rotation point of the braking member, a distance difference gradually increases, and a distance between the outer wall of the braking member and the braking part of the movable member gradually decreases when the braking member conducts braking,
[08] The device further includes a driving mechanism for driving the braking members to rotate, the driving mechanism includes driven gears coaxially arranged with the braking members and a driving member for driving the driven gears to rotate, the driven gears and the driving member are each mounted on a carrier member, and the driving member meshes with the driven gears.
[09] The driving member includes racks, the device further includes a driving gear for driving the driving member to move, the driving gear meshes with the driving member, and the driving gear is mounted on the carrier member.
[10] The number of the braking members is two, the driven gears of the two braking members both mesh with the driving member, the driving member includes first rack parts that mesh with the two driven gears respectively, a cross bar is connected between the two first rack parts, the driving member further includes a second rack part, the second rack part meshes with the driving gear, and the second rack part is connected to the cross bar.
[11] The movable member is a rotary member, and the movable member rotates with a wheel when being applied to the wheel.
[12] The braking members are cams.
[13] The braking members are round rollers, and the round rollers are eccentrically mounted on the carrier member.
[14] The device further includes a resetting member for driving the driving member to return to an original position, one end of the resetting member is connected to the driving member, and the other end of the resetting member is connected to the carrier member.
[15] The present invention has the beneficial effects that since an approximate cam structure is used for braking, a brake pedal is pressed harder and harder during braking, a braking distance is reduced, and friction between the braking members and the braking part 1s decreased accordingly, thereby generating no long-term continuous friction, and further improving braking performance of a product.
[16] FIG. 1 is a structural schematic diagram of the present invention in a non-braking state; and
[17] FIG. 2 is a structural schematic diagram of the present invention in a braking state.
[18] The present invention 1s further described below with reference to embodiments.
[19] Embodiment
[20] As shown in FIGs. 1 and 2, a braking device includes a movable member 1, and the movable member 1 1s provided with a braking part 11. The device further includes braking members 2 for stopping movement of the movable member 1, the braking members 2 are rotary members, the movable member 1 is a rotary member, and the movable member 1 rotates with a wheel when the movable member 1 is applied to the wheel. The braking members 2 rotate during braking of the braking members 2, and outer walls of the braking members 2 abut against the braking part 11 for braking. Each braking member 2 has a braking area 21 and a natural area 22, the natural area 22 of the braking member 2 is an area close to the braking part 11 when the braking member 2 conducts no braking, and the braking area 21 is an area, which makes contact with the braking part 11, of the outer wall of the braking member 2 when a brake pedal is pressed. There is a gap between the natural area 22 of the braking member 2 and the braking part 11 in a natural state, that is, the braking member 2 makes no contact with the braking part 11 of the movable member 1 when the braking member 2 conducts no braking. The braking area 21 of the braking member 2 rotates to abut against the braking part 11 in a braking state. The brake pedal is pressed to drive the braking members 2 to rotate, and then the braking area 21 makes contacts with the braking part 11 to achieve a braking effect after the braking members 2 rotate by a certain angle.
[21] A distance between an outer wall of the natural area 22 and a rotation point of each braking member 2 is smaller than that between an outer wall of the braking area 21 and the rotation point of the braking member 2, a distance difference gradually increases, and a distance between the outer wall of the braking member 2 and the braking part 11 of the movable member 1 gradually decreases when the braking member 2 conducts braking.
With the design, after each braking member 2 makes contacts with the braking part 11, a resistance gradually increases, thereby making braking easier, reducing a braking distance, and achieving a more labor-saving effect during braking. For brakes in the current market, a force required for braking is larger when a brake pedal is pressed harder. However, in the present invention, because the braking part 11 rotates to drive potential energy of the braking member 2 in a braking direction, the potential energy may offset part of a resetting force of a resetting member 7, such that a force required by a user for braking is smaller.
[22] The device further includes a driving mechanism for driving the braking members 2 to rotate, the driving mechanism includes driven gears 3 coaxially arranged with the braking members 2 and a driving member 4 for driving the driven gears 3 to rotate, the driven gears 3 and the driving member 4 are each mounted on a carrier member 5, and the driving member 4 meshes with the driven gears 3. The driving member 4 includes racks, the device further includes a driving gear 6 for driving the driving member 4 to move, the driving gear 6 meshes with the driving member 4, and the driving gear 6 is mounted on the carrier member. In the present invention, through cooperation between the racks and the gears, the driving mechanism cannot skid, thereby guaranteeing a braking effect of the braking device.
[23] The number of the braking members 2 is two, the driven gears 3 of the two braking members 2 both mesh with the driving member 4, the driving member 4 includes first rack parts 41 that mesh with the two driven gears 3 respectively, a cross bar 43 is connected between the two first rack parts 41, the driving member 4 further includes a second rack part 42, the second rack part 42 meshes with the driving gear 6, and the second rack part 42 is connected to the cross bar 43.
[24] As another embodiment, each braking member 2 is designed as a cam, when the braking member 2 is a cam, a protruding part of the cam is a braking area 21, and the braking area 21 makes contact with a braking part 11 during braking.
[25] As another embodiment, the braking members 2 are round rollers, and the round rollers are eccentrically mounted on a carrier member 5. When each braking member 2 is a 5 round roller eccentrically mounted, an area between the outer wall and a part away from a center point of the braking member 2 is the braking area 21, and the braking area 21 makes contact with the braking part 11 during braking.
[26] The device further includes a resetting member 7 for driving a driving member 4 to return to an original position, one end of the resetting member 7 is connected to the driving member 4, and the other end of the resetting member is connected to the carrier member 5. In the embodiment, the resetting member 7 is a tension spring, or may be designed as a torsion spring as required. When the resetting member is designed as the torsion spring, the torsion spring is mounted at a driving gear 6.
[27] The above shows and describes the basic principles, essential features and advantages of the present invention. It should be understood by those skilled in the art that, the present invention is not limited by the above embodiments, the above embodiments and the description only illustrate the principle of the present invention, and simple changes and replacements made by those of ordinary skill in the art without departing from the spirit and scope of the present invention all fall within the protection scope of the present invention.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2032788A NL2032788B1 (en) | 2022-08-18 | 2022-08-18 | Braking device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
NL2032788A NL2032788B1 (en) | 2022-08-18 | 2022-08-18 | Braking device |
Publications (1)
Publication Number | Publication Date |
---|---|
NL2032788B1 true NL2032788B1 (en) | 2024-02-27 |
Family
ID=90038658
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NL2032788A NL2032788B1 (en) | 2022-08-18 | 2022-08-18 | Braking device |
Country Status (1)
Country | Link |
---|---|
NL (1) | NL2032788B1 (en) |
-
2022
- 2022-08-18 NL NL2032788A patent/NL2032788B1/en active
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