CN110107618B

CN110107618B - Braking device

Info

Publication number: CN110107618B
Application number: CN201910425777.5A
Authority: CN
Inventors: 王金虎
Original assignee: Wenzhou Wangjinhu New Handling Equipment Technology Co Ltd
Current assignee: Wenzhou Wangjinhu New Handling Equipment Technology Co Ltd
Priority date: 2019-05-21
Filing date: 2019-05-21
Publication date: 2021-05-04
Anticipated expiration: 2039-05-21
Also published as: WO2020233565A1; CN110107618A

Abstract

The invention provides a braking device, which comprises a moving part and a braking part, wherein the moving part is provided with a braking part, the braking part is a rotating part, the braking part rotates when braking, and the outer wall of the braking part is abutted against the braking part. The invention has the beneficial effects that: the invention adopts the similar cam structure for braking, the braking is tighter and tighter in braking, the braking distance is reduced, the friction between the braking part and the braking part is reduced while the braking distance is reduced, and the long-term continuous friction can not be generated. Further improving the braking performance of the product.

Description

Braking device

Technical Field

The invention belongs to the technical field of brake mechanisms, and particularly relates to a brake device with small heat.

Background

The brake device is applied in a plurality of fields, the most important field is the fields of automobiles, elevators and the like, two types of automobile brakes are generally adopted at present, one type is drum brake, the other type is disc brake, the drum brake has the defect that heat is serious in the braking process, the automobile needs to be braked for a long time when descending a long slope, and thus the heating of a brake pad is serious, the braking distance is prolonged, or the brake failure often occurs; the disc brake is exposed, so that the heat dissipation effect of the disc brake is better than that of a drum brake, but the disc brake is too complex in structure and high in cost, and the disc brake is also greatly influenced by the high temperature of a brake disc in summer, so that the braking distance of the disc brake is influenced. The heating reason of drum brakes and disc brakes is mainly that the friction points are large and are surface-to-surface friction, so that most surfaces of the brake part are rubbed, and the temperature of the product is increased.

Disclosure of Invention

The invention aims to provide a braking device.

The invention is realized by the following technical scheme:

a braking device comprises a moving part and a braking part, wherein the moving part is provided with a braking part, the braking part is used for stopping the moving part, the braking part is a rotating part, the braking part rotates when the braking part brakes, and the outer wall of the braking part is abutted against the braking part.

The braking part is provided with a braking area and a natural area, and a gap is reserved between the natural area and the braking part in a natural state; the braking part rotates to be in contact with the braking part in the braking area in the braking state.

The distance from the outer wall of the natural area to the rotating point of the braking part is smaller than the distance from the outer wall of the braking area to the rotating point of the braking part, the distance difference is gradually increased, and the distance between the outer wall of the braking part and the braking part of the moving part is gradually reduced when the braking part brakes.

The brake device is characterized by further comprising a driving mechanism for driving the brake part to rotate, the driving mechanism comprises a driven gear and a driving part, the driven gear and the driving part are coaxially arranged with the brake part, the driving part drives the driven gear to rotate, the driven gear and the driving part are both mounted on the carrier part, and the driving part is meshed with the driven gear.

The driving piece be the rack, still include the driving gear of drive driving piece motion, the driving gear meshes with the driving piece, the driving gear install on carrier spare.

The braking piece be two, and the driven gear of two braking pieces all meshes with the driving piece, the driving piece includes the first rack portion with two driven gear meshing respectively, be connected with the horizontal pole between two first rack portions, the driving piece still includes the second rack portion, the second rack portion meshes with the driving gear, the second rack portion is connected on the horizontal pole.

The moving part is a rotating part, and when the moving part is applied to the wheel, the moving part rotates along with the wheel.

The braking part is a cam.

The braking part is a circular roller, and the circular roller is eccentrically arranged on the carrier part.

The reset device further comprises a reset piece for driving the driving piece to reset, one end of the reset piece is connected to the driving piece, and the other end of the reset piece is connected to the carrier piece.

The invention has the beneficial effects that: the invention adopts the similar cam structure for braking, the braking is tighter and tighter in braking, the braking distance is reduced, the friction between the braking part and the braking part is reduced while the braking distance is reduced, and the long-term continuous friction can not be generated. Further improving the braking performance of the product.

Drawings

FIG. 1 is a schematic structural view of the present invention in a non-braking state;

fig. 2 is a schematic structural diagram of the braking state of the present invention.

Detailed Description

The present invention will be further described with reference to the following examples.

Examples

A braking device as shown in fig. 1 and fig. 2, the device includes a moving member 1, the moving member 1 has a braking portion 11, and further includes a braking member 2 for stopping the moving of the moving member 1, the braking member 2 is a rotating member, the moving member 1 is a rotating member, and the moving member 1 rotates with the wheel when the moving member 1 is applied to the wheel; when the braking member 2 brakes, the braking member 2 rotates, and the outer wall of the braking member 2 is abutted against the braking portion 11 for braking. The braking member 2 has a braking area 21 and a natural area 22, the natural area 22 is an area where the braking member 2 is close to the braking portion 11 when the braking member 2 is not braking, the braking area 21 is an area where the outer wall of the braking member 2 of the brake pedal is pressed to contact with the braking portion 11, and a gap is formed between the natural area 22 and the braking portion 11 when the braking member 2 is in a natural state, that is, the braking member 2 is not in contact with the braking portion 11 of the moving member 1 when the braking member 2 is not braking; the braking member 2 rotates the braking area 21 to collide with the braking portion 11 in the braking state. After the brake pedal is stepped on, the brake part 2 is driven to rotate, and after the brake part 2 rotates for a certain angle, the brake area 21 is contacted with the brake part 11 to generate a brake effect.

The distance from the outer wall of the natural area 22 to the rotation point of the braking member 2 is less than the distance from the outer wall of the braking area 21 to the rotation point of the braking member 2, the distance difference is gradually increased, and the distance between the outer wall of the braking member 2 and the braking portion 11 of the moving member 1 is gradually reduced when the braking member 2 brakes. The design can ensure that the contact force is larger and larger after the braking part 2 is contacted with the braking part 11, so that the braking is easier, the braking distance is reduced, and the braking is more labor-saving, the braking force is larger when the braking is tighter in the current market, and the potential energy of the braking part 2 towards the braking direction is driven by the rotation of the braking part 11 in the invention, and the potential energy can counteract a part of the resetting force of the resetting part 7, so that the braking force of a user is smaller.

The brake device further comprises a driving mechanism for driving the brake part 2 to rotate, the driving mechanism comprises a driven gear 3 and a driving part 4, the driven gear 3 is coaxially arranged with the brake part 2, the driving part 4 drives the driven gear 3 to rotate, the driven gear 3 and the driving part 4 are both arranged on the carrier part 5, and the driving part 4 is meshed with the driven gear 3. The driving piece 4 be the rack, still include the driving gear 6 of the motion of drive driving piece 4, driving gear 6 and driving piece 4 meshing, driving gear 6 install on the carrier. The invention adopts the matching of the rack and the gear, so that the driving mechanism can not generate the slipping phenomenon, and the braking effect of the braking device is ensured.

The braking parts 2 are two, the driven gears 3 of the two braking parts 2 are meshed with the driving part 4, the driving part 4 comprises first rack parts 41 respectively meshed with the two driven gears 3, a cross rod 43 is connected between the two first rack parts 41, the driving part 4 further comprises a second rack part 42, the second rack part 42 is meshed with the driving gear 6, and the second rack part 42 is connected to the cross rod 43.

As another embodiment, the braking member 2 is designed as a cam, and when the braking member 2 is a cam, the convex part of the cam is a braking area 21, and the braking area 21 is in contact with the braking portion 11 during braking.

As another embodiment, the braking member 2 is a circular roller, and the circular roller is eccentrically installed on the carrier member 5. When the braking member 2 is an eccentrically installed circular roller, the portion of the outer wall of the braking member 2 farther from the center point is a braking area 21, and the braking area 21 is in contact with the braking portion 11 during braking.

The device also comprises a resetting piece 7 for driving the driving piece 4 to reset, wherein one end of the resetting piece 7 is connected to the driving piece 4, and the other end of the resetting piece 7 is connected to the carrier piece 5. The piece 7 that resets in this embodiment is the extension spring, also can design as required for the torsional spring, and the torsional spring is installed in driving gear 6 position when designing for the torsional spring.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to explain the principles of the invention, and that various modifications and alterations can be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A braking device, the device includes the moving part, has braking portion on the moving part, its characterized in that: the braking part is a rotating part, the braking part rotates when braking, and the outer wall of the braking part is abutted against the braking part to generate extrusion braking; the braking part is provided with a braking area and a natural area, and a gap is reserved between the natural area and the braking part in a natural state; the braking part rotates to be abutted against the braking part in the braking area under the braking state; the distance from the outer wall of the natural area to the rotating point of the braking part is smaller than the distance from the outer wall of the braking area to the rotating point of the braking part, the distance difference is gradually increased, and the distance between the outer wall of the braking part and the braking part of the movable part is gradually reduced when the braking part brakes; the brake device comprises a brake piece, a carrier piece and a driving piece, and is characterized by also comprising a driving mechanism for driving the brake piece to rotate, wherein the driving mechanism comprises a driven gear and a driving piece, the driven gear and the driving piece are coaxially arranged with the brake piece, the driving piece drives the driven gear to rotate, the driven gear and the driving piece are both arranged on the carrier piece, and the driving piece is meshed with the driven; the driving piece is a rack and also comprises a driving gear for driving the driving piece to move, the driving gear is meshed with the driving piece, and the driving gear is arranged on the carrier piece; the braking device comprises two braking parts, driven gears of the two braking parts are meshed with a driving part, the driving part comprises first rack parts respectively meshed with the two driven gears, a cross rod is connected between the two first rack parts, the driving part further comprises a second rack part, the second rack part is meshed with a driving gear, and the second rack part is connected to the cross rod; the movable part is a rotating part and rotates along with the wheel when the movable part is applied to the wheel; the braking part is a cam; the braking piece is a circular roller, and the circular roller is eccentrically arranged on the carrier piece; the reset device further comprises a reset piece for driving the driving piece to reset, one end of the reset piece is connected to the driving piece, and the other end of the reset piece is connected to the carrier piece.