LU500330B1 - Electromechanical drum brake having integrated functions of service brake and parking brake - Google Patents

Electromechanical drum brake having integrated functions of service brake and parking brake Download PDF

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Publication number
LU500330B1
LU500330B1 LU500330A LU500330A LU500330B1 LU 500330 B1 LU500330 B1 LU 500330B1 LU 500330 A LU500330 A LU 500330A LU 500330 A LU500330 A LU 500330A LU 500330 B1 LU500330 B1 LU 500330B1
Authority
LU
Luxembourg
Prior art keywords
brake
rotatory
rotatory shaft
shaft
shafts
Prior art date
Application number
LU500330A
Other languages
French (fr)
Inventor
Yingjian Shen
Xuanyao Wang
Peng Feng
Original Assignee
Univ Anhui Sci & Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Univ Anhui Sci & Technology filed Critical Univ Anhui Sci & Technology
Application granted granted Critical
Publication of LU500330B1 publication Critical patent/LU500330B1/en

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Classifications

    • 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
    • F16D51/20—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 extending in opposite directions from their pivots
    • F16D51/24—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 extending in opposite directions from their pivots fluid actuated
    • 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
    • F16D65/00—Parts or details
    • F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
    • F16D65/16—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake
    • F16D65/22—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position arranged in or on the brake adapted for pressing members apart, e.g. for drum brakes
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F16D2121/04—Fluid pressure acting on a piston-type actuator, e.g. for liquid pressure
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/02—Fluid pressure
    • F16D2121/08—Fluid pressure acting on a membrane-type actuator, e.g. for gas pressure
    • 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
    • F16D2121/00—Type of actuator operation force
    • F16D2121/18—Electric or magnetic
    • F16D2121/24—Electric or magnetic using motors
    • 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
    • F16D2123/00—Multiple operation forces
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
    • F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
    • F16D2125/26—Cranks
    • 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
    • F16D2125/00—Components of actuators
    • F16D2125/18—Mechanical mechanisms
    • F16D2125/20—Mechanical mechanisms converting rotation to linear movement or vice versa
    • F16D2125/22—Mechanical mechanisms converting rotation to linear movement or vice versa acting transversely to the axis of rotation
    • F16D2125/28—Cams; Levers with cams
    • F16D2125/30—Cams; Levers with cams acting on two or more cam followers, e.g. S-cams

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)

Abstract

The present invention discloses an electromechanical drum brake having integrated functions of a service brake and a parking brake, including a brake plate. First rotatory shaft holes in an array distribution are provided in the brake plate, and a mounting groove is provided in the middle of the brake plate. First rotatory shafts are provided in the first rotatory shaft holes, and brake shoes are provided on and rotatably connected to the first rotatory shafts. Brake pads in a mirror distribution are provided on the brake shoes. Pushing shafts are provided on one sides of the brake shoes. A second rotatory shaft hole is further provided in the brake plate, and a second rotatory shaft is provided in the second rotatory shaft hole. A bidirectional flipping head is provided at one end of the second rotatory shaft, and a toothed head is provided at the other end of the second rotatory shaft. A pushing bar is provided on the toothed head. A toothed groove mated with the toothed head is provided at one end of the pushing bar, and a third rotatory shaft is provided at the other end of the pushing bar. A first rotatory joint is provided on the third rotatory shaft. The brake further includes a first cylinder. The brake of the present invention has a simple structure and performs braking through a plurality of cylinders. The brake has a desirable braking effect and improved stability and reduces hidden dangers caused by unstable braking.

Description

ELECTROMECHANICAL DRUM BRAKE HAVING INTEGRATED FUNCTIONS OF SERVICE BRAKE AND PARKING BRAKE
BACKGROUND Technical Field The present invention relates to the field of brakes, and in particular, to an electromechanical drum brake having integrated functions of a service brake and a parking brake. Related Art In a drum brake, a brake transmission mechanism 1s used to cause brake shoes to press brake pads against an inner side of a brake drum, to generate a braking force, so as to decelerate wheels or stop a vehicle within a shortest distance as required, thereby ensuring travelling safety and reliable parking of the vehicle without automatic slippage. The brake drum serves as a rotatory element of the drum brake, and the brake shoe serves as a fixing element, which cost low for fabrication and conform to a traditional design. The brake drum serves as a rotatory element of the drum brake, and the brake shoe serves as a fixing element. During braking, the brake shoe rotates outward under the action of an actuating apparatus, and a friction plate on an outer surface is pressed against the inner cylindrical surface of the brake drum to generate a braking friction torque on the drum. Apparatuses that apply a force to an end of the shoe to rotate the shoe are collectively referred to as a brake shoe actuating apparatus. The brake shoe actuating apparatus has a wheel cylinder, a cam, and a wedge. When the brake is released, the brake shoe is released from the drum. A spring helps fix the brake shoe in place, and causes the brake shoe to return back after driving of an adjusting arm. Most of existing brakes have a single-brake wheel cylinder. In view of this, an electromechanical drum brake having integrated functions of a service brake and a parking brake is provided.
SUMMARY The present invention is intended to provide an electromechanical drum brake having integrated functions of a service brake and a parking brake, which has a simple structure, is convenient to fabricate, and performs braking through a plurality of cylinders. The brake has a desirable braking effect and improved stability and reduces hidden dangers caused by unstable braking. The objective of the present invention can be achieved by the following technical solution: An electromechanical drum brake having integrated functions of a service brake and a parking brake includes a brake plate, where first rotatory shaft holes in an array distribution are provided in the brake plate, a mounting groove is provided in the middle of the brake plate, first rotatory shafts are provided in the first rotatory shaft holes, brake shoes are provided on and rotatably connected to the first rotatory shafts, and brake pads in a mirror distribution are provided on the brake shoes; and pushing shafts are provided on one sides of the brake shoes, a second rotatory shaft hole is further provided in the brake plate, a second rotatory shaft is provided in the second rotatory shaft hole, a bidirectional flipping head is provided at one end of the second rotatory shaft, a toothed head is provided at the other end of the second rotatory shaft, and a pushing bar is provided on the toothed head.
Further, a toothed groove mated with the toothed head is provided at one end of the pushing bar, a third rotatory shaft is provided at the other end of the pushing bar, a first rotatory joint is provided on the third rotatory shaft, second rotatory joints in a mirror distribution are provided at both ends of the third rotatory shaft, and the brake further includes a first cylinder.
Further, the first cylinder is mounted on a cylinder fixing support, second cylinders in an array distribution are further provided on the cylinder fixing support, a first output end of the first cylinder is connected to the first rotatory joint, and second output shafts of the second cylinders are connected to the second rotatory joints.
The present invention has the following beneficial effects: The present invention has a simple structure, is convenient to fabricate, and performs braking through a plurality of cylinders. The brake has a desirable braking effect and improved stability and reduces hidden dangers caused by unstable braking.
BRIEF DESCRIPTION OF THE DRAWINGS The following further describes the present invention in detail with reference to the accompanying drawings.
FIG. 1 is a schematic structural diagram of an electromechanical drum brake having integrated functions of a service brake and a parking brake according to the present invention; and FIG. 2 is a schematic structural diagram of an electromechanical drum brake having integrated functions of a service brake and a parking brake according to the present invention.
DETAILED DESCRIPTION The following clearly and completely describes the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Apparently, the described embodiments are some of the embodiments of the present invention rather than all of the embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
In the description of the present invention, it should be understood that orientation or position relationships indicated by the terms such as "hole", "above", "below", "thickness", "top", "middle", "length", "inside", and "around" are used only for ease and brevity of illustration and description, rather than indicating or implying that the mentioned component or element need to have a particular orientation or need to be constructed and operated in a particular orientation. Therefore, such terms should not be construed as limiting of the present invention.
An electromechanical drum brake having integrated functions of a service brake and a parking brake includes a brake plate 1. as shown in FIG. 1 and FIG. 2, first rotatory shaft holes 11 in an array distribution are provided in the brake plate 1, and a mounting groove 12 is provided in the middle of the brake plate 1. First rotatory shafts 13 are provided in the first rotatory shaft holes 11, and brake shoes 2 are provided on and rotatably connected to the first rotatory shafts 13. Brake pads 3 in a mirror distribution are provided on the brake shoes 2. Pushing shafts 21 are provided on one sides of the brake shoes 2. A second rotatory shaft hole 14 is further provided in the brake plate 1, and a second rotatory shaft 4 is provided in the second rotatory shaft hole 14. A bidirectional flipping head 41 is provided at one end of the second rotatory shaft 4, and a toothed head 42 is provided at the other end of the second rotatory shaft 4. A pushing bar 5 1s provided on the toothed head 42. A toothed groove 51 mated with the toothed head 42 is provided at one end of the pushing bar 5, and a third rotatory shaft 52 is provided at the other end of the pushing bar 5. A first rotatory joint 621 is provided on the third rotatory shaft 52, and second rotatory joints 65 in a mirror distribution are provided at both ends of the third rotatory shaft 52. The brake further includes a first cylinder 6. The first cylinder 6 is mounted on a cylinder fixing support 61. Second cylinders 63 in an array distribution are further provided on the cylinder fixing support 61. A first output end 62 of the first cylinder 6 is connected to the first rotatory joint 621, and second output shafts 64 of the second cylinders 63 are connected to the second rotatory joints 65.
During use, the brake is mounted in a hub. The first cylinder 6 and the second cylinders 63 are activated, so that the first output end 62 and the second output shafts 64 push the pushing bar 5 to rotate the second rotatory shaft 4, the bidirectional flipping head 41 toggles the pushing shaft 21, and the brake shoes 2 push the brake pads 3 outward so that the brake pads 3 are pressed against the hub for braking.
In the descriptions of this specification, a description of a reference term such as "an embodiment", "an example", or "a specific example" means that a specific feature, structure, material, or characteristic that is described with reference to the embodiment or the example is included in at least one embodiment or example of the present invention.
In this specification, exemplary descriptions of the foregoing terms do not necessarily refer to the same embodiment or example.
In addition, the described specific features, structures, materials, or characteristics may be combined in a proper manner in any one or more of the embodiments or examples.
The foregoing displays and describes basic principles, main features of the present invention and advantages of the present invention.
A person skilled in the art may understand that the present invention is not limited to the foregoing embodiments.
Descriptions in the embodiments and this specification only illustrate the principles of the present invention.
Various modifications and improvements are made in the present invention without departing from the spirit and the scope of the present invention, and these modifications and improvements shall fall within the protection scope of the present invention.

Claims (3)

CLAIMS What is claimed is:
1. An electromechanical drum brake having integrated functions of a service brake and a parking brake, comprising a brake plate (1), wherein first rotatory shaft holes (11) in an array 5 distribution are provided in the brake plate (1), a mounting groove (12) is provided in the middle of the brake plate (1), first rotatory shafts (13) are provided in the first rotatory shaft holes (11), brake shoes (2) are provided on and rotatably connected to the first rotatory shafts (13), and brake pads (3) in a mirror distribution are provided on the brake shoes (2); and pushing shafts (21) are provided on one sides of the brake shoes (2), a second rotatory shaft hole (14) is further provided in the brake plate (1), a second rotatory shaft (4) is provided in the second rotatory shaft hole (14), a bidirectional flipping head (41) is provided at one end of the second rotatory shaft (4), a toothed head (42) is provided at the other end of the second rotatory shaft (4), and a pushing bar (5) is provided on the toothed head (42).
2. The electromechanical drum brake having integrated functions of a service brake and a parking brake according to claim 1, wherein a toothed groove (51) mated with the toothed head (42) is provided at one end of the pushing bar (5), a third rotatory shaft (52) is provided at the other end of the pushing bar (5), a first rotatory joint (621) is provided on the third rotatory shaft (52), second rotatory joints (65) in a mirror distribution are provided at both ends of the third rotatory shaft (52), and the brake further comprises a first cylinder (6).
3. The electromechanical drum brake having integrated functions of a service brake and a parking brake according to claim 2, wherein the first cylinder (6) is mounted on a cylinder fixing support (61), second cylinders (63) in an array distribution are further provided on the cylinder fixing support (61), a first output end (62) of the first cylinder (6) is connected to the first rotatory joint (621), and second output shafts (64) of the second cylinders (63) are connected to the second rotatory joints (65).
LU500330A 2021-04-08 2021-06-24 Electromechanical drum brake having integrated functions of service brake and parking brake LU500330B1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110379319.XA CN113107991A (en) 2021-04-08 2021-04-08 Electronic mechanical drum brake integrating traveling and parking braking functions

Publications (1)

Publication Number Publication Date
LU500330B1 true LU500330B1 (en) 2022-01-07

Family

ID=76715120

Family Applications (1)

Application Number Title Priority Date Filing Date
LU500330A LU500330B1 (en) 2021-04-08 2021-06-24 Electromechanical drum brake having integrated functions of service brake and parking brake

Country Status (2)

Country Link
CN (1) CN113107991A (en)
LU (1) LU500330B1 (en)

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Publication number Publication date
CN113107991A (en) 2021-07-13

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Effective date: 20220107