NL2032788B1 - Braking device - Google Patents

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

TECHNICAL FIELD

[01] The present invention belongs to the technical field of braking mechanisms, and particularly relates to a braking device with low heat generation.

BACKGROUND ART

[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.

SUMMARY

[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.

BRIEF DESCRIPTION OF THE DRAWINGS

[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.

DETAILED DESCRIPTION OF THE EMBODIMENTS

[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)

ConclusiesConclusions 1. Reminrichting, omvattende een beweegbaar element, waarbij het beweegbare element voorzien is van een remdeel; waarbij de inrichting verder remelementen omvat om de beweging van het beweegbare element te stoppen, waarbij de remelementen roterende elementen zijn, waarbij de remelementen tijdens het remmen roteren, en buitenwanden van de remelementen aanliggen tegen het remdeel om knijpremming te genereren; waarbij elk remelement een remzone en een natuurlijke zone heeft, en in een natuurlijke toestand er een opening is tussen de natuurlijke zone van het remelement en het remdeel; waarbij in een remmende toestand de remzone van elk remelement roteert om tegen het remdeel aan te liggen; waarbij een afstand tussen een buitenwand van de natuurlijke zone en een rotatiepunt van elk remelement kleiner is dan die tussen een buitenwand van de remzone en het rotatiepunt van het remelement, een afstandsverschil geleidelijk toeneemt, en een afstand tussen de buitenwand van het remelement en het remgedeelte van het beweegbare element geleidelijk afneemt wanneer het remelement remt; waarbij de inrichting verder een aandrijfmechanisme omvat voor het in beweging brengen van de remelementen, waarbij het aandrijfmechanisme aangedreven tandwielen omvat die coaxiaal met de remelementen zijn opgesteld en een aandrijfelement voor het in beweging brengen van de aangedreven tandwielen, waarbij de aangedreven tandwielen en het aandrijfelement elk gemonteerd zijn op een draagelement en het aandrijfelement 1n ineengrijpend contact staat met de aangedreven tandwielen; waarbij het aandrijfelement tandheugels omvat, waarbij de inrichting verder een aandrijftandwiel voor het aandrijven van beweging van het aandrijfelement omvat, waarbij het aandrijftandwiel in ineengrijpend contact staat met het aandrijfelement, en het aandrijftandwiel gemonteerd is op het draagelement; waarbij het aantal remelementen twee is, de aangedreven tandwielen van de twee remelementen beide in ineengrijpend contact staan met het aandrijfelement, het aandrijfelement eerste tandheugeldelen omvat die in ineengrijpend contact staan met de respectievelijke twee aangedreven tandwielen, een dwarsbalk verbonden is tussen de twee eerste tandheugeldelen, het aandrijfelement verder een tweede tandheugeldeel omvat, het tweede tandheugeldeel in ineengrijpend contact staat met het aandrijftandwiel, en het tweede tandheugeldeel verbonden is met de dwarsbalk;1. Braking device, comprising a movable element, wherein the movable element is provided with a braking part; wherein the device further comprises braking elements to stop the movement of the movable element, wherein the braking elements are rotating elements, wherein the braking elements rotate during braking, and outer walls of the braking elements abut the braking part to generate pinch braking; wherein each braking element has a braking zone and a natural zone, and in a natural state there is a gap between the natural zone of the braking element and the braking part; wherein in a braking condition the braking zone of each braking element rotates to abut the braking part; wherein a distance between an outer wall of the natural zone and a rotation point of each braking element is smaller than that between an outer wall of the braking zone and the rotation point of the braking element, a distance difference gradually increases, and a distance between the outer wall of the braking element and the braking part of the movable element gradually decreases when the braking element brakes; wherein the device further comprises a drive mechanism for moving the braking elements, wherein the driving mechanism comprises driven gears arranged coaxially with the braking elements and a driving element for moving the driven gears, wherein the driven gears and the driving element each are mounted on a supporting element and the driving element is in meshing contact with the driven gears; wherein the drive element comprises racks, the device further comprising a drive gear for driving movement of the drive element, the drive gear being in meshing contact with the drive element, and the drive gear mounted on the support element; wherein the number of braking elements is two, the driven gears of the two braking elements are both in meshing contact with the driving element, the driving element comprises first rack parts that are in meshing contact with the respective two driven gears, a crossbar is connected between the two first rack parts, the drive element further comprises a second rack and pinion portion, the second rack and pinion portion is in meshing contact with the drive gear, and the second rack and pinion portion is connected to the cross beam; waarbij het beweegbare element een roterend element is, en het beweegbare element roteert met een wiel wanneer het op het wiel toegepast wordt;wherein the movable element is a rotating element, and the movable element rotates with a wheel when applied to the wheel; waarbij de remelementen nokken zijn; waarbij de remelementen ronde rollen zijn,wherein the braking elements are cams; wherein the braking elements are round rollers, en de ronde rollen excentrisch op het draagelement zijn gemonteerd, en waarbij de inrichting verder een resetelement omvat om het aandrijfelement terug naar een originele positie aan te drijven, waarbij één eind van het resetelement verbonden is met het aandrijfelement, en het andere eind van het resetelement verbonden wordt met het draagelement.and the round rollers are mounted eccentrically on the support element, and wherein the device further comprises a reset element for driving the drive element back to an original position, one end of the reset element being connected to the drive element, and the other end connected to the reset element is connected to the supporting element.