CN112901676A - Drum brake stay wire installation guiding mechanism - Google Patents

Drum brake stay wire installation guiding mechanism Download PDF

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Publication number
CN112901676A
CN112901676A CN202110103571.8A CN202110103571A CN112901676A CN 112901676 A CN112901676 A CN 112901676A CN 202110103571 A CN202110103571 A CN 202110103571A CN 112901676 A CN112901676 A CN 112901676A
Authority
CN
China
Prior art keywords
pull
spring fixing
spring
elastic sheet
wire
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
CN202110103571.8A
Other languages
Chinese (zh)
Inventor
汪永胜
王变变
冯晓虹
吴火娟
施英杰
凌利峰
黄东方
何东
黄伟平
黄伟杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Zhejiang Asia Pacific Mechanical and Electronic Co Ltd
Original Assignee
Zhejiang Asia Pacific Mechanical and Electronic Co Ltd
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 Zhejiang Asia Pacific Mechanical and Electronic Co Ltd filed Critical Zhejiang Asia Pacific Mechanical and Electronic Co Ltd
Priority to CN202110103571.8A priority Critical patent/CN112901676A/en
Publication of CN112901676A publication Critical patent/CN112901676A/en
Pending legal-status Critical Current

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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
    • F16D51/22—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 mechanically 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
    • 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
    • F16D2121/14—Mechanical
    • 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
    • F16D2125/58—Mechanical mechanisms transmitting linear movement
    • F16D2125/60—Cables or chains, e.g. Bowden cables
    • 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
    • F16D2125/58—Mechanical mechanisms transmitting linear movement
    • F16D2125/60—Cables or chains, e.g. Bowden cables
    • F16D2125/62—Fixing arrangements therefor, e.g. cable end attachments

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

Abstract

The invention discloses a drum brake stay wire installation guide mechanism. A pull wire hole is formed in the brake bottom plate, a spring fixing seat is fixed in the pull wire hole, and a pull wire guide pipe is fixed on the brake bottom plate between the lower portion of the collar shoe and the lower portion of the slave shoe; the elastic sheet and the spring fixing buckle are both fixed on the bottom of the pull arm, and the end part of the guide spring is sleeved in the cylindrical body; the guide spring is installed by penetrating the stay wire guide pipe, and two ends of the guide spring are connected with the spring fixing seat and the spring fixing buckle; the pull wire firstly passes through the spring fixing seat on the brake bottom plate, then passes through the pull wire guide pipe on the brake bottom plate along the guide spring and then extends into the spring fixing buckle; the elastic sheet is positioned right above the barb at the bottom end of the pull arm, the lower surface of the elastic sheet slants downwards along the extending direction of the stay wire, and the head of the stay wire is a cylinder with a diameter larger than the stay wire and the width of the barb hook of the pull arm. The invention can realize the quick connection of the stay wire and the pull arm, saves the assembly time and has stable and reliable connection.

Description

Drum brake stay wire installation guiding mechanism
Technical Field
The invention relates to a drum brake guide mechanism, in particular to a drum brake stay wire installation guide mechanism which has the main functions of realizing the quick assembly of a stay wire and a pull arm and saving the installation time.
Background
Generally speaking, the assembly of the brake pull arm and the pull wire needs to connect the head part of the pull wire and the tail part of the pull arm together through manpower on the premise that the brake drum is not assembled, and the design wastes time and labor in the assembly of vehicle parts. Therefore, it is necessary to design a new guiding mechanism to overcome the drawbacks of the technical application.
Disclosure of Invention
Aiming at the problems in the prior art, the invention aims to design an automatic guide mechanism, which realizes the quick connection of a pull wire and a pull arm without manually connecting the pull wire and the pull arm.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention comprises a brake bottom plate, a stay wire guide tube, a spring fixing seat, a collar shoe, a slave shoe, a pull arm, an elastic sheet, a spring fixing buckle and a guide spring; a pull wire hole is formed in the brake bottom plate, a spring fixing seat is riveted or welded at the pull wire hole, and a pull wire guide pipe is fixed on the brake bottom plate between the lower parts of the collar shoe and the slave shoe; the elastic sheet and the spring fixing buckle are both fixed on the bottom of the pull arm, the spring fixing buckle is a cylindrical body, and the end part of the guide spring is sleeved in the cylindrical body; the guide spring is installed by penetrating the stay wire guide pipe, and two ends of the guide spring are connected with the spring fixing seat and the spring fixing buckle; the pull wire firstly passes through the spring fixing seat on the brake bottom plate, then passes through the pull wire guide pipe on the brake bottom plate along the guide spring and then extends into the spring fixing buckle; the elastic sheet is positioned right above the barb at the bottom end of the pull arm, the lower surface of the elastic sheet slants downwards along the extending direction of the stay wire, and the head of the stay wire is a cylinder with the diameter larger than the diameter of the stay wire and the width of the barb hook of the pull arm.
When the stay wire is not hooked on the bottom barb of the pull arm, the gap between the lower surface of the elastic sheet and the bottom barb of the pull arm is smaller than the diameter of the head cylinder of the stay wire, the head cylinder of the stay wire penetrates through the spring fixing buckle and the guide spring and then extends into the gap between the lower surface of the elastic sheet and the bottom barb of the pull arm, the elastic sheet is moved and pressed along the extending direction to enable the head cylinder of the stay wire to cross the bottom barb of the pull arm, and then the elastic sheet is pressed down under the lower surface of the elastic sheet and is guided to fall into the bottom barb of the pull arm.
The stay wire guide tube is provided with two or a plurality of reverse buckles to prevent the guide spring from being separated in the stay wire assembling process.
The spring fixing seat is riveted, welded or press-fitted at the pull wire hole of the brake bottom plate in an interference fit manner.
The elastic sheet and the spring fixing buckle are riveted or welded on the bottom of the pull arm.
One end of the spring fixing buckle is riveted or welded on the pull arm, and the other end of the spring fixing buckle is a circular arc-shaped cylinder.
The elastic sheet is riveted or welded on the pull arm, and the spring fixing buckle is riveted or welded on the elastic sheet.
The elastic sheet and the spring fixing buckle are respectively riveted or welded on the pull arm.
The invention has the beneficial effects that:
the invention realizes the quick assembly of the pull wire and the brake pull arm and saves the assembly time. The invention has the following advantages: 1. the design is reasonable, and the structure is simple; 2. the connection is convenient and reliable.
Drawings
FIG. 1 is a front view of the main structure of the present invention.
FIG. 2 is a back view of the main structure of the present invention.
Fig. 3 is a schematic view illustrating an assembly process of the brake spider structure according to the present invention.
FIG. 4 is a schematic view of the brake shoe and brake pull arm construction of the present invention.
Fig. 4 (a) is a structural view showing an assembled brake shoe and brake pull arm according to the present invention.
Fig. 4 (b) is an exploded view of the brake shoe and brake pull arm of the present invention.
Fig. 5 and 6 are schematic views of the guide mechanism path of the present invention.
In the figure: 1. the brake shoe comprises a brake bottom plate, 1.1, a stay wire guide pipe, 1.2, a spring fixing seat, 2, a collar shoe, 3, a slave shoe, 3.1, a pull arm, 3.2, an elastic sheet, 3.3, a spring fixing buckle, 4, a clearance adjusting mechanism, 5, a brake wheel cylinder, 6, an upper end return spring, 7, a lower end return spring, 8, a guide spring, 9 and a stay wire.
Detailed Description
The invention is further described with reference to the accompanying drawings and the detailed description, installation and use thereof.
As shown in fig. 1 and 2, the brake shoe comprises a brake bottom plate 1, a pull wire guide pipe 1.1, a spring fixing seat 1.2, a leading shoe 2, a trailing shoe 3, a pull arm 3.1, an elastic sheet 3.2, a spring fixing buckle 3.3 and a guide spring 8.
The two sides of the brake bottom plate 1 are respectively provided with a leading shoe 2 and a following shoe 3, the lower parts of the leading shoe 2 and the following shoe 3 are connected through a lower end return spring 7, and the upper parts of the leading shoe 2 and the following shoe 3 are connected through gap adjusting mechanisms 4 and 5, a brake wheel cylinder 6 and an upper end return spring 7.
As shown in fig. 2 and 3, a pull wire hole is formed in the brake bottom plate 1, a pull wire 9 penetrates through the pull wire hole, a spring fixing seat 1.2 is riveted or welded at the pull wire hole, the spring fixing seat 1.2 is used for fixing one end of a guide spring 8, and a pull wire guide pipe 1.1 is fixed on the brake bottom plate 1 between the lower portion of the leading shoe 2 and the lower portion of the trailing shoe 3.
As shown in fig. 4 (a) and (b), the draw arm 3.1 is hinged on the trailing shoe, the elastic sheet 3.2 and the spring fixing buckle 3.3 are both fixed on the bottom of the draw arm 3.1, the spring fixing buckle 3.3 is a cylindrical body, and the end part of the guide spring 8 is sleeved in the cylindrical body; the spring retainer clip 3.3 serves to secure one end of the guide spring 8.
As shown in fig. 5 and 6, the guide spring 8 is installed by penetrating the stay wire guide tube 1.1, and two ends of the guide spring 8 are connected with the spring fixing seat 1.2 and the spring fixing buckle 3.3; the stay wire 9 firstly passes through the spring fixing seat 1.2 fixed on the brake bottom plate 1, then passes through the stay wire guide tube 1.1 fixed on the brake bottom plate 1 along the guide spring 8 and then extends into the spring fixing buckle 3.3; the elastic sheet 3.2 is positioned right above the barb at the bottom end of the pull arm 3.1, the lower surface of the elastic sheet 3.2 slants downwards along the extension direction of the stay wire 9, and the head of the stay wire 9 is a cylinder with the diameter larger than that of the stay wire 9 and the width of the barb hook of the pull arm 3.1.
When the pull wire 9 is not hooked on the bottom end barb of the pull arm 3.1, the gap between the lower surface of the elastic sheet 3.2 and the bottom end barb of the pull arm 3.1 is smaller than the diameter size of the head cylinder of the pull wire 9, the head cylinder of the pull wire 9 penetrates through the spring fixing buckle 3.3 and the guide spring 8 and then extends into the gap between the lower surface of the elastic sheet 3.2 and the bottom end barb of the pull arm 3.1, then the elastic sheet 3.2 is continuously moved along the extension direction and pressed to enable the head cylinder of the pull wire 9 to cross the bottom end barb of the pull arm 3.1, and then the elastic sheet 3.2 is pressed and guided to fall into the bottom end barb of the pull arm 3.1 under the lower surface of the elastic sheet 3.2, so that under the matching of the spring fixing buckle 3.3, the head of the pull wire 9 is connected with the tail of the pull arm 3..
Two or a plurality of back-off buttons are designed on the stay wire guide tube 1.1 to prevent the guide spring 8 from being separated in the process of assembling the stay wire 9.
The spring fixing seat 1.2 is identical with the whole notch shape of the matching end of the pull wire hole on the braking bottom plate 1 and the guide spring 8.
The spring fixing seat 1.2 is riveted, welded or press-fitted at the pull wire hole of the brake bottom plate 1. Specifically, one end of the spring fixing buckle 3.3 is riveted or welded on the pull arm 3.1, the other end is a circular arc-shaped cylinder body, the cylinder body is matched with the guide spring 8, and the shape of the cylinder body is identical to that of the guide spring 8.
The elastic sheet 3.2 and the spring fixing buckle 3.3 are riveted or welded on the bottom of the pull arm 3.1. Specifically, as shown in fig. 4 (a) and (b), the elastic sheet 3.2 is riveted or welded to the pull arm 3.1, and the spring fixing buckle 3.3 is riveted or welded to the elastic sheet 3.2. Or the elastic sheet 3.2 and the spring fixing buckle 3.3 are riveted or welded on the pull arm 3.1 respectively.
As shown in fig. 5 and 6, after all the parts on the brake are installed, when the pull wire 9 is assembled on the vehicle, the head of the pull wire 9 is directly connected to the tail of the pull arm 3.1 through the guide path on the brake, so that the rapid assembly is realized.

Claims (8)

1. The utility model provides a drum brake is acted as go-between and is installed guiding mechanism which characterized in that: the brake shoe comprises a brake bottom plate (1), a stay wire guide pipe (1.1), a spring fixing seat (1.2), a collar shoe (2), a slave shoe (3), a pull arm (3.1), an elastic sheet (3.2), a spring fixing buckle (3.3) and a guide spring (8); a pull wire hole is formed in the brake bottom plate (1), a spring fixing seat (1.2) is riveted or welded at the pull wire hole, and a pull wire guide pipe (1.1) is fixed on the brake bottom plate (1) between the lower parts of the collar shoe (2) and the slave shoe (3); the elastic sheet (3.2) and the spring fixing buckle (3.3) are both fixed on the bottom of the pull arm (3.1), the spring fixing buckle (3.3) is a cylindrical body, and the end part of the guide spring (8) is sleeved in the cylindrical body; the guide spring (8) is installed by penetrating the stay wire guide pipe (1.1), and two ends of the guide spring (8) are connected with the spring fixing seat (1.2) and the spring fixing buckle (3.3);
the pull wire (9) firstly passes through the spring fixing seat (1.2) on the brake bottom plate (1), then passes through the pull wire guide tube (1.1) on the brake bottom plate (1) along the guide spring (8) and then extends into the spring fixing buckle (3.3); the elastic sheet (3.2) is positioned right above the barb at the bottom end of the pull arm (3.1), the lower surface of the elastic sheet (3.2) slants downwards along the extension direction of the stay wire (9), and the head of the stay wire (9) is a cylinder with the diameter larger than that of the stay wire (9) and the width of the barb hook of the pull arm (3.1).
2. A drum brake cable installation guide mechanism as claimed in claim 1, in which: when the pull wire (9) is not hooked on the bottom end barb of the pull arm (3.1), the gap between the lower surface of the elastic sheet (3.2) and the bottom end barb of the pull arm (3.1) is smaller than the diameter of the head cylinder of the pull wire (9), the head cylinder of the pull wire (9) penetrates through the spring fixing buckle (3.3) and the guide spring (8) and then extends into the space between the lower surface of the elastic sheet (3.2) and the bottom end barb of the pull arm (3.1), then the pull wire (9) head cylinder continuously moves along the extension direction and presses the elastic sheet (3.2) to enable the head cylinder of the pull wire (9) to cross the bottom end barb of the pull arm (3.1), and then the elastic sheet (3.2) is pressed under the lower surface of the elastic sheet (3.2) to be guided downwards to fall into the bottom end barb of the.
3. A drum brake cable installation guide mechanism as claimed in claim 1, in which: two or a plurality of back-off buttons are designed on the stay wire guide tube (1.1) to prevent the guide spring (8) from being separated out in the process of assembling the stay wire (9).
4. A drum brake cable installation guide mechanism as claimed in claim 1, in which: the spring fixing seat (1.2) is riveted, welded or press-fitted at a wire pulling hole of the brake bottom plate (1).
5. A drum brake cable installation guide mechanism as claimed in claim 1, in which: the elastic sheet (3.2) and the spring fixing buckle (3.3) are riveted or welded on the bottom of the pull arm (3.1).
6. A drum brake cable installation guide mechanism as claimed in claim 1, in which: one end of the spring fixing buckle (3.3) is riveted or welded on the pull arm (3.1), and the other end is a circular arc-shaped cylinder.
7. A drum brake cable installation guide mechanism as claimed in claim 1, in which: the elastic sheet (3.2) is riveted or welded on the pull arm (3.1), and the spring fixing buckle (3.3) is riveted or welded on the elastic sheet (3.2).
8. A drum brake cable installation guide mechanism as claimed in claim 1, in which: the elastic sheet (3.2) and the spring fixing buckle (3.3) are riveted or welded on the pull arm (3.1) respectively.
CN202110103571.8A 2021-01-26 2021-01-26 Drum brake stay wire installation guiding mechanism Pending CN112901676A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110103571.8A CN112901676A (en) 2021-01-26 2021-01-26 Drum brake stay wire installation guiding mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110103571.8A CN112901676A (en) 2021-01-26 2021-01-26 Drum brake stay wire installation guiding mechanism

Publications (1)

Publication Number Publication Date
CN112901676A true CN112901676A (en) 2021-06-04

Family

ID=76120135

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202110103571.8A Pending CN112901676A (en) 2021-01-26 2021-01-26 Drum brake stay wire installation guiding mechanism

Country Status (1)

Country Link
CN (1) CN112901676A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09503843A (en) * 1993-09-22 1997-04-15 ルーカス・インダストリーズ・パブリック・リミテッド・カンパニー Mechanical operating mechanism for automobile brakes
JP2001323955A (en) * 2000-05-18 2001-11-22 Nisshinbo Ind Inc Brake cable connector for drum brake
US20020117367A1 (en) * 2001-02-23 2002-08-29 Takashi Ikeda Brake cable connecting apparatus for drum brake
EP1340659A2 (en) * 2002-02-19 2003-09-03 Automotive Products (Italia) S.p.A. Parking brake actuating mechanisms
FR2841619A1 (en) * 2002-06-27 2004-01-02 Bosch Gmbh Robert Motor vehicle drum brake has mechanical actuator with lever and automatic cable positioner
CN208919137U (en) * 2018-09-04 2019-05-31 浙江亚太机电股份有限公司 A kind of drum brake of band short bracing wire and disconnecting prevention structure torque arm

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09503843A (en) * 1993-09-22 1997-04-15 ルーカス・インダストリーズ・パブリック・リミテッド・カンパニー Mechanical operating mechanism for automobile brakes
JP2001323955A (en) * 2000-05-18 2001-11-22 Nisshinbo Ind Inc Brake cable connector for drum brake
US20020007990A1 (en) * 2000-05-18 2002-01-24 Seiji Asai Brake cable connecting apparatus for drum brake
US20020117367A1 (en) * 2001-02-23 2002-08-29 Takashi Ikeda Brake cable connecting apparatus for drum brake
EP1340659A2 (en) * 2002-02-19 2003-09-03 Automotive Products (Italia) S.p.A. Parking brake actuating mechanisms
FR2841619A1 (en) * 2002-06-27 2004-01-02 Bosch Gmbh Robert Motor vehicle drum brake has mechanical actuator with lever and automatic cable positioner
CN208919137U (en) * 2018-09-04 2019-05-31 浙江亚太机电股份有限公司 A kind of drum brake of band short bracing wire and disconnecting prevention structure torque arm

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Application publication date: 20210604

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