CN214146355U

CN214146355U - Hydraulic disc brake

Info

Publication number: CN214146355U
Application number: CN202022621105.2U
Authority: CN
Inventors: 赵蔚
Original assignee: Chongqing Southwest Pneumatic Hydraulic Co ltd
Current assignee: Chongqing Southwest Pneumatic Hydraulic Co ltd
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2021-09-07
Anticipated expiration: 2030-11-12

Abstract

The utility model provides a hydraulic disc brake, including pincers body base, brake disc, brake caliper and pneumatic cylinder, brake caliper includes actuating arm, driven arm, brake pads and friction disc, and actuating arm and driven arm are all movable mounting on pincers body base, and actuating arm and driven arm swing joint, the actuating arm can drive the driven arm and move, and the moving direction of actuating arm is perpendicular with the moving direction of driven arm; the brake disc is arranged between the two friction plates in parallel, and the moving direction of the driven arm is vertical to the brake disc; the hydraulic cylinder is arranged on the clamp body base and used for driving the two driving arms to synchronously move towards the corresponding driven arms, so that the two friction plates are tightly pressed on the brake disc. When the hydraulic disc brake is used for braking, the friction surfaces of the two friction plates can be uniformly and completely contacted with the brake disc to realize friction braking, the braking effect is ensured, the friction plates can be fully utilized, the service life of the friction plates is prolonged, and the utilization efficiency of the friction plates is also improved.

Description

Hydraulic disc brake

Technical Field

The utility model relates to a stopper technical field, concretely relates to hydraulic disc brake.

Background

A brake is a device having a function of decelerating, stopping, or keeping a stopped state of a moving member or a moving machine, and is commonly called a brake or a gate. The brake includes a friction type brake and a non-friction type brake, wherein the friction type brake may be classified into a disc brake, a band brake, and the like.

The disc brake is of a hydraulic type and is controlled by hydraulic pressure, and pressure is applied to a brake caliper through a hydraulic system, so that a brake friction plate and a rotating brake disc are rubbed, and the purpose of braking is achieved. The disc brake has the advantages of fast heat dissipation, light weight, simple structure and convenient adjustment, and particularly has good high-temperature resistance and stable braking effect under high load.

The chinese patent cn202020260571.x discloses a hydraulic disc brake, which comprises a brake disc and a brake fixing seat, wherein two sides of the brake disc are respectively and symmetrically provided with a rotary caliper, and one side of the rotary caliper, which is close to the brake disc, is provided with a brake block and a friction plate; the top of rotating caliper rotates and runs through to the top of stopper fixing base, installs the rotation support on the stopper fixing base, and two rotate the support and install the pneumatic cylinder, and the piston rod of pneumatic cylinder is connected with the rotation of rotating caliper. Through the shrink of pneumatic cylinder piston rod, and then drive and rotate calliper and rotate, pivoted rotation calliper drives brake pads and friction disc and is close to the brake disc simultaneously for the friction disc presses and produces frictional resistance with the brake disc, thereby makes the brake disc stop.

However, in the technical scheme, the rotary caliper rotates around the rotating shaft in the middle of the rotary caliper, so that the brake block and the friction plate at one end of the rotary caliper can only rub with the brake disc after rotating along with the rotary caliper, and therefore only a small part of the friction plate can be used for friction braking, the contact area between the friction plate and the brake disc is reduced, the service life of the friction plate is shortened, and unnecessary waste is caused.

SUMMERY OF THE UTILITY MODEL

To the defect among the prior art, the utility model aims at providing a hydraulic disc brake.

In order to achieve the above object, the utility model provides a hydraulic disc brake, including pincers body base, brake disc, brake caliper and pneumatic cylinder, two brake caliper symmetrical arrangement are in on pincers body base, brake caliper includes actuating arm, driven arm, brake pads and friction disc, the actuating arm with the driven arm is all movable mounting on pincers body base, actuating arm and driven arm swing joint, the actuating arm can drive the driven arm and move, the moving direction of actuating arm is perpendicular with the moving direction of driven arm; the brake block is arranged at one end of the driven arm, the friction plates are arranged on one side of the brake block, which is far away from the driven arm, and the two friction plates are arranged in parallel relatively; the brake disc is arranged between the two friction plates in parallel, and the moving direction of the driven arm is vertical to the brake disc; the hydraulic cylinder is arranged on the clamp body base and used for driving the two driving arms to synchronously move towards the corresponding driven arms, so that the two friction plates are tightly pressed on the brake disc.

Preferably, a through hole penetrates through the driven arm, a pin column is arranged in the through hole, and a central axis of the pin column is parallel to a plane where the brake disc is located; the actuating arm activity is worn to establish in the through-hole, runs through on the actuating arm and is equipped with the bar hole, the length direction extension of actuating arm is followed in the bar hole, and the one end that the bar hole is close to the pneumatic cylinder inclines towards brake disc one side, and the proper sliding fit of pin post is downthehole at the bar.

Preferably, the caliper body base comprises a connecting piece and two support arms respectively arranged at two ends of the connecting piece, the two support arms are symmetrically arranged at two sides of the brake disc, one side of each support arm facing the brake disc is provided with an accommodating groove, and the driven arm is in sliding fit in the accommodating groove; the support arm is provided with a containing hole penetrating through the containing groove, and the driving arm is in sliding fit in the containing hole; the pneumatic cylinder is installed on the connecting piece, is equipped with the piston in the pneumatic cylinder, the one end of piston is connected with the ejector pad, and two actuating arms are connected respectively one side that the ejector pad deviates from the piston.

Preferably, a partition plate is arranged between the two support arms, and two ends of the partition plate are respectively connected with the two support arms; two sliding holes are formed in the partition plate, and the two driving arms are in fit sliding fit in the corresponding sliding holes.

Preferably, the edge of each sliding hole is provided with a guide sleeve, the guide sleeve extends towards the side away from the push block, a guide hole in form fit with the driving arm is formed in the guide sleeve, and the guide hole is communicated with the sliding hole.

Preferably, each driving arm is sleeved with an elastic part in a penetrating manner, the elastic part is located between the pushing block and the partition plate, and two ends of the elastic part are respectively connected with the pushing block and the partition plate.

Preferably, an annular groove is formed in the inner cylinder wall of the hydraulic cylinder along the circumferential direction of the inner cylinder wall, a sealing ring is arranged in the annular groove, the cross section of the sealing ring is rectangular, and the sealing ring is sleeved on the piston.

Preferably, the hydraulic cylinder further comprises an oil passage, and the oil passage is communicated with the hydraulic cylinder.

The utility model has the advantages that:

the utility model discloses a hydraulic disc brake, it is through designing into brake caliper be cruciform structure swing joint's actuating arm and driven arm, and, with friction disc and brake disc parallel arrangement, promote two actuating arms towards the driven arm side synchronous motion who corresponds when the pneumatic cylinder, because the moving direction of actuating arm is perpendicular with the moving direction of driven arm, the actuating arm can drive the driven arm and remove to the brake disc towards the direction of perpendicular to brake disc, thereby make two friction discs be close to in step to the brake disc, the contact produces prevents brake disc pivoted frictional force, realize the braking.

When the hydraulic disc brake is used for braking, the friction surfaces of the two friction plates can be uniformly and completely contacted with the brake disc to realize friction braking, the braking effect is ensured, the friction plates can be fully utilized, the service life of the friction plates is prolonged, and the utilization efficiency of the friction plates is also improved.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below. Throughout the drawings, like elements or portions are generally identified by like reference numerals. In the drawings, elements or portions are not necessarily drawn to scale.

Fig. 1 is a schematic structural diagram of a hydraulic disc brake according to an embodiment of the present invention;

FIG. 2 is a schematic structural view in a braking state;

figure 3 is a perspective view of the drive arm;

fig. 4 is a plan view of the follower arm.

Reference numerals:

the brake caliper comprises a caliper body base 1, a connecting piece 11, a support arm 12, a receiving groove 121, a first rod 122, a first rod 123, a second rod 124, a receiving hole 124, a partition plate 13, a brake disc 2, a brake caliper 3, a driving arm 31, a strip-shaped hole 311, a driven arm 32, a through hole 321, a pin 322, a brake block 33, a friction plate 34, a hydraulic cylinder 4, a piston 41, a sealing ring 42, a push block 5, a partition plate 6, a guide sleeve 7, an elastic part 8 and an oil path 9.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and therefore are only examples, and the protection scope of the present invention is not limited thereby.

It is to be noted that unless otherwise specified, technical or scientific terms used herein shall have the ordinary meaning as understood by those skilled in the art to which the present invention belongs.

In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience of description and simplicity of description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.

Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through intervening media. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

As shown in fig. 1-4, the present invention provides a hydraulic disc brake, specifically, the hydraulic disc brake includes a caliper body base 1, a brake disc 2, two brake calipers 3 and a hydraulic cylinder 4, the two brake calipers 3 are symmetrically disposed on the caliper body base 1, the brake calipers 3 include a driving arm 31, a driven arm 32, a brake block 33 and a friction plate 34, the driving arm 31 and the driven arm 32 are both movably mounted on the caliper body base 1, the driving arm 31 is movably connected to the driven arm 32, the driving arm 31 can drive the driven arm 32 to move, and the moving direction of the driving arm 31 is perpendicular to the moving direction of the driven arm 32; the brake block 33 is arranged at one end of the driven arm 32, the friction plate 34 is arranged at one side of the brake block 33, which is far away from the driven arm 32, and the two friction plates 34 are arranged in parallel relatively; the brake disc 2 is arranged between two friction plates 34 in parallel, and the moving direction of the driven arm 32 is vertical to the brake disc 2; the hydraulic cylinder 4 is installed on the caliper body base 1, and the hydraulic cylinder 4 is used for driving the two driving arms 31 to synchronously move towards the corresponding driven arms 32, so that the two friction plates 34 are pressed on the brake disc 2. Wherein the brake disc 2 is rotatably mounted on a bridge or other support.

The utility model discloses a hydraulic disc brake, it is through designing into brake caliper 3 into being cruciform structure swing joint's actuating arm 31 and driven arm 32, and, with friction disc 34 and brake disc 2 parallel arrangement, promote two actuating arms 31 towards the driven arm 32 side synchronous motion who corresponds when pneumatic cylinder 4, because the moving direction of actuating arm 31 is perpendicular with the moving direction of driven arm 32, actuating arm 31 can drive driven arm 32 and remove to brake disc 2 towards the direction of perpendicular to brake disc 2, thereby make two friction discs 34 be close to in step to brake disc 2, press and produce and prevent 2 pivoted frictional force of brake disc, realize the braking.

When the hydraulic disc brake is used for braking, the friction surfaces of the two friction plates 34 can be uniformly and completely contacted with the brake disc 2 to realize friction braking, the braking effect is ensured, meanwhile, the friction plates 34 can be fully utilized, the service life of the friction plates 34 is prolonged, and the utilization efficiency of the friction plates 34 is also improved.

Specifically, a through hole 321 is formed in the driven arm 32 in a penetrating manner, a pin 322 is arranged in the through hole 321, and a central axis of the pin 322 is parallel to a plane where the brake disc 2 is located; the driving arm 31 is movably arranged in the through hole 321 in a penetrating manner, a strip-shaped hole 311 is arranged on the driving arm 31 in a penetrating manner, the strip-shaped hole 311 extends along the length direction of the driving arm 31, one end, close to the hydraulic cylinder 4, of the strip-shaped hole 311 inclines towards the brake disc 2, and the pin 322 is in conformal sliding fit in the strip-shaped hole 311.

During braking, the hydraulic cylinder 4 applies thrust to the two driving arms 31 simultaneously to enable the driving arms 31 to move towards one side of the driven arm 32, the inner walls of the inclined strip-shaped holes 311 apply thrust to the pin posts 322 in the through holes 321, the moving direction of the driven arm 32 is perpendicular to the brake disc 2, and the moving direction of the driving arms 31 is perpendicular to the moving direction of the driven arm 32, so that the driving arms 31 continuously apply thrust to the pin posts 322, the pin posts 322 drive the driven arm 32 to move towards the brake disc 2, and until the two friction plates 34 synchronously approach to the brake disc 2 and contact and press to generate friction force for preventing the brake disc 2 from rotating, so that braking is achieved. The size of the through hole 321 is required to meet the requirement of the position space caused by the movement of the driving arm 31 and the driven arm 32.

Further, the caliper body base 1 comprises a connecting piece 11 and two support arms 12 respectively arranged at two ends of the connecting piece 11, the two support arms 12 are symmetrically arranged at two sides of the brake disc 2, one side of each support arm 12 facing the brake disc 2 is provided with a containing groove 121, and the driven arm 32 is in sliding fit in the containing groove 121; the arm 12 is provided with a containing hole 124 through which the containing groove 121 passes, and the driving arm 31 is slidably fitted in the containing hole 124; pneumatic cylinder 4 installs on connecting piece 11, is equipped with piston 41 in the pneumatic cylinder 4, and the one end of piston 41 is connected with ejector pad 5, and two actuating arms 31 are connected respectively in the one side that ejector pad 5 deviates from piston 41.

In the present embodiment, the caliper base 1 is designed to be C-shaped, and the arm 12 is L-shaped, specifically, the arm 12 includes a first rod 122 and a second rod 123, one end of the first rod 122 is vertically connected to the connection, the second rod 123 is vertically connected to the other end of the first rod 122, and the second rod 123 is perpendicular to the brake disc 2. The receiving groove 121 is opened on a side of the second rod 123 facing the brake disc 2, and correspondingly, the receiving hole 124 is also opened on the second rod 123. Through designing support arm 12 into L shape structure, the holding groove 121 of the second body of rod 123 can play the effect of supporting and leading to driven arm 32, guarantees that driven arm 32 operates steadily, stably.

Further, in order to support and guide the driving arm 31, a partition plate 13 is arranged between the two support arms 12, and two ends of the partition plate 13 are respectively linked with the two support arms 12; two sliding holes are formed in the partition plate 13, and the two driving arms 31 are in conformal sliding fit in the corresponding sliding holes.

Furthermore, the edge of each sliding hole is provided with a guide sleeve 7, the guide sleeve 7 extends towards the side away from the push block 5, a guide hole which is matched with the driving arm 31 in a form-fitting manner is arranged in the guide sleeve 7, and the guide hole is communicated with the sliding hole. Through addding uide bushing 7 to make actuating arm 31 can more stably remove along the direction of perpendicular to driven arm 32, and then guarantee that whole brake caliper 3's operation is smooth and easy, thereby improve the stability of braking.

Furthermore, each driving arm 31 is sleeved with an elastic member 8, the elastic member 8 is located between the pushing block 5 and the partition plate 13, and two ends of the elastic member 8 are respectively connected with the pushing block 5 and the partition plate 13. During braking, the piston 41 pushes the push block 5 under the action of hydraulic pressure, the push block 5 simultaneously pushes the two driving arms 31 to move towards the driven arm 32, and the push block 5 also compresses the two elastic members 8 to deform the two elastic members 8. When the brake is released, the pressure acting on the back surface of the piston 41 disappears, and the deformed elastic member 8 applies a pushing force to the push block 5, thereby increasing the speed of returning the piston 41. Wherein, the elastic element 8 is a compression spring.

In a specific embodiment, the inner wall of the hydraulic cylinder 4 is provided with an annular groove along the circumferential direction, a sealing ring 42 is arranged in the annular groove, the cross section of the sealing ring 42 is rectangular, and the sealing ring 42 is sleeved on the piston 41. During braking, the piston 41 moves under the action of hydraulic pressure, and at this time, the cutting edge of the seal ring 42 having a rectangular cross section is slightly elastically deformed by the action of friction of the piston 41. When the brake is released, the pressure acting on the back surface of the piston 41 disappears, and the seal ring 42 returns to the original state under the action of the elastic force, and simultaneously drives the piston 41 to return.

Of course, the hydraulic disc brake further comprises an oil passage 9, the oil passage 9 communicating with the hydraulic cylinder 4.

In the specification of the present invention, a large number of specific details are explained. It is understood, however, that embodiments of the invention may be practiced without these specific details. In some instances, well-known methods, structures and techniques have not been shown in detail in order not to obscure an understanding of this description.

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 substantially depart from the scope of the embodiments of the present invention, and are intended to be covered by the claims and the specification.

Claims

1. The utility model provides a hydraulic disc brake, includes pincers body base, brake disc, brake caliper and pneumatic cylinder, its characterized in that:

the two brake calipers are symmetrically arranged on the caliper body base and comprise driving arms, driven arms, brake blocks and friction plates, the driving arms and the driven arms are movably arranged on the caliper body base, the driving arms are movably connected with the driven arms, the driving arms can drive the driven arms to move, and the moving direction of the driving arms is perpendicular to that of the driven arms;

the brake block is arranged at one end of the driven arm, the friction plates are arranged on one side of the brake block, which is far away from the driven arm, and the two friction plates are arranged in parallel relatively; the brake disc is arranged between the two friction plates in parallel, and the moving direction of the driven arm is vertical to the brake disc;

the hydraulic cylinder is arranged on the clamp body base and used for driving the two driving arms to synchronously move towards the corresponding driven arms, so that the two friction plates are tightly pressed on the brake disc.

2. The hydraulic disc brake of claim 1, wherein:

a through hole penetrates through the driven arm, a pin column is arranged in the through hole, and the central axis of the pin column is parallel to the plane of the brake disc;

the actuating arm activity is worn to establish in the through-hole, runs through on the actuating arm and is equipped with the bar hole, the length direction extension of actuating arm is followed in the bar hole, and the one end that the bar hole is close to the pneumatic cylinder inclines towards brake disc one side, and the proper sliding fit of pin post is downthehole at the bar.

3. The hydraulic disc brake of claim 2, wherein:

the caliper body base comprises a connecting piece and two support arms respectively arranged at two ends of the connecting piece, the two support arms are symmetrically arranged at two sides of the brake disc, one side of each support arm facing the brake disc is provided with a containing groove, and the driven arm is in sliding fit in the containing groove; the support arm is provided with a containing hole penetrating through the containing groove, and the driving arm is in sliding fit in the containing hole;

the pneumatic cylinder is installed on the connecting piece, is equipped with the piston in the pneumatic cylinder, the one end of piston is connected with the ejector pad, and two actuating arms are connected respectively one side that the ejector pad deviates from the piston.

4. The hydraulic disc brake of claim 3, wherein:

a partition plate is arranged between the two support arms, and two ends of the partition plate are respectively connected with the two support arms; two sliding holes are formed in the partition plate, and the two driving arms are in fit sliding fit in the corresponding sliding holes.

5. The hydraulic disc brake of claim 4, wherein:

the edge of each sliding hole is provided with a guide sleeve, the guide sleeve extends towards the side departing from the push block, a guide hole in fit with the driving arm is arranged in the guide sleeve, and the guide hole is communicated with the sliding hole.

6. The hydraulic disc brake of claim 5, wherein:

each driving arm is sleeved with an elastic piece in a penetrating mode, the elastic piece is located between the pushing block and the partition plate, and two ends of the elastic piece are connected with the pushing block and the partition plate respectively.

7. The hydraulic disc brake of any one of claims 3-6, characterized in that:

the inner cylinder wall of the hydraulic cylinder is provided with an annular groove along the circumferential direction, a sealing ring is arranged in the annular groove, the cross section of the sealing ring is rectangular, and the sealing ring is sleeved on the piston.

8. The hydraulic disc brake of claim 7, wherein:

the hydraulic cylinder is characterized by further comprising an oil way, and the oil way is communicated with the hydraulic cylinder.