CN107939865A - A kind of drum brake of multisection type brake-shoe - Google Patents
A kind of drum brake of multisection type brake-shoe Download PDFInfo
- Publication number
- CN107939865A CN107939865A CN201711214638.5A CN201711214638A CN107939865A CN 107939865 A CN107939865 A CN 107939865A CN 201711214638 A CN201711214638 A CN 201711214638A CN 107939865 A CN107939865 A CN 107939865A
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- China
- Prior art keywords
- brake
- shoe
- hoof
- driven
- active
- 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
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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
- F16D55/00—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes
- F16D55/24—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
- F16D55/26—Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member without self-tightening action
- F16D55/28—Brakes with only one rotating disc
- F16D55/30—Brakes with only one rotating disc 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
- F16D65/02—Braking members; Mounting thereof
- F16D65/04—Bands, shoes or pads; Pivots or supporting members therefor
- F16D65/092—Bands, shoes or pads; Pivots or supporting members therefor for axially-engaging brakes, e.g. disc 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
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
The invention discloses a kind of drum brake of multisection type brake-shoe, including back-plate, brake-shoe and cam mechanism；The same side is provided with brake-shoe and cam mechanism on back-plate；One end of brake-shoe is connected with cam mechanism, and the opening and closing in the rotation process of cam mechanism, so as to be bonded friction with brake drum；Brake-shoe on brake drum friction side wall with being provided with friction plate；Brake-shoe includes active brake hoof and driven brake-shoe；Active brake hoof is connected with cam mechanism, and driven brake-shoe is connected with active brake hoof Synchronous Transmission, is also associated with resetting position-limit mechanism on driven brake-shoe；By the structure design for improving brake-shoe and friction plate, enable the uniform friction catch of friction plate, substantially increase the service life of brake, it ensure that the good braking effect of brake, its it is simple in structure installation and it is easy to maintain, solves the problem of existing oversize vehicle shoe brake braking effect is bad, and brake use cost is high.
Description
Technical field
The present invention relates to a kind of brake, particularly a kind of drum brake of multisection type brake-shoe.
Background technology
Brake is the dress for having the function of to make moving component (or movable machinery) slow down, stop or keep halted state etc.
Put, be the machine components for making the movement parts in machinery stop or slow down, be commonly called as brake, lock.Brake is mainly by frame processed, brake component
Formed with manipulation device etc..Some brakes are also equipped with the automatic regulating apparatus in brake component gap, in order to reduce braking moment and
Structure size, brake are commonly mounted on the high speed shaft of equipment, but the higher large scale equipment of security requirement should be then mounted in and leaned on
On the slow-speed shaft of nearly equipment working portion.
In Brake for vehicle, there is a kind of brake using a shoe type drum brake, a hoof mechanism type brake master
It is divided into two classes：One kind be it is mechanical, using it is most common be pneumatic type cam mechanism hoof；Another kind of is fluid pressure type：It is
Piston hoof is promoted with hydraulic cylinder.The both ends stroke of cam hoof passage brake-shoe is equal so that brake-shoe turns in the other end
Dynamic be connected under the action of support shaft rotates along supporting point, so that the brake block on brake-shoe and brake drum friction, so that
Realize the braking of vehicle, the effect that pneumatic cam mechanism is received due to one end of brake-shoe in the brake of Zhang Ti mechanisms is opened first
Open so that braking brake block at the end gets off drag friction pad wear inequality with brake drum friction, long term first
Even, so as to cause the braking effect of brake bad, the friction plate replacement cycle is short, and brake service cost greatly increases, for
For oversize vehicle, the above problem is especially apparent.
The content of the invention
The goal of the invention of the present invention is：For above-mentioned problem, there is provided a kind of drum-type system of multisection type brake-shoe
Dynamic device, by the structure design for improving brake-shoe and friction plate so that friction plate can uniform friction catch, substantially increase
The service life of brake, ensure that the good braking effect of brake, its installation simple in structure and easy to maintain, solve existing
There is the problem of oversize vehicle shoe brake braking effect is bad, and brake use cost is high.
The technical solution adopted by the present invention is as follows：
The drum brake of the multisection type brake-shoe of the present invention, including back-plate, brake-shoe and cam mechanism；The braking bottom
The same side is provided with brake-shoe and cam mechanism on plate；One end of the brake-shoe is connected with cam mechanism, and in cam mechanism
Rotation process in opening and closing, so as to be bonded friction with brake drum；The brake-shoe on brake drum friction side wall with being provided with friction
Piece；The brake-shoe includes active brake hoof and driven brake-shoe；The active brake hoof is connected with cam mechanism, driven braking
One end of hoof is sequentially connected with active brake hoof so that driven brake-shoe being capable of opening and closing synchronous with active brake hoof and brake drum patch
Close rubbing action；It is also associated with resetting position-limit mechanism on the other end of the driven brake-shoe.
Due to using the above structure, by brake-shoe subsection setup, and using drive coordination action side between each brake-shoe
Formula connects so that braking can be by overall uniform brake drum effect, so as to ensure that the friction plate on brake-shoe can be uniform
Effective brake drum effect, so as to produce the friction catch effect of balance and stability, and then realizes the good braking effect of brake
Fruit, its is simple in structure, install convenient, and practicality is good, and the brake-shoe of segmented ensure that the uniform stressed of friction plate, so as to ensure
The service life of friction plate, greatly reduces the replacement frequency of friction plate, reduces the use cost of brake, has good
Good use value；Reset position-limit mechanism can ensure driven brake-shoe in multisection type brake-shoe can parking position accuracy, ensure
Its action effect.
The drum brake of the multisection type brake-shoe of the present invention, the both sides of the cam mechanism are equipped with brake-shoe, both sides
Brake-shoe between be connected with return spring, for brake-shoe open after return.
Further, the active brake hoof is equipped with two groups of both sides for being symmetrically arranged at cam mechanism, with two groups of masters
Dynamic brake-shoe is sequentially connected with two groups of driven brake-shoes respectively, and two groups of driven brake-shoe mirror symmetries are arranged on back-plate；
Return spring one is connected between active brake hoof described in two；It is equipped between driven brake-shoe described in two and resets position restrainer
Structure.
Further, the reset position-limit mechanism includes sliding slot, sliding block and return spring two；The sliding slot is arranged on braking
On bottom plate, and between the driven brake-shoe end being arranged symmetrically；Sliding block is equipped with the sliding slot, the sliding block can be in sliding slot
The interior square upward sliding perpendicular to driven brake-shoe opening and closing；Return spring two is symmetrically symmetrically connected with the sliding block；Described time
Driven brake-shoe is connected by position spring two with sliding block.
Further, the sliding slot is rectangular recess, and the upper surface of sliding slot below driven brake-shoe with being located at same water
In plane；The axial cross section of the sliding block is I-shaped, and its one end is caught in sliding slot, and the other end stretches out outside sliding slot and return spring
Two connections.
Further, the return spring one and return spring two are respectively positioned at active brake hoof and driven brake-shoe
On opening and closing direction；The return spring one and return spring two are arranged in parallel.
Since using the above structure, return spring can be respectively acting on active brake hoof and driven brake-shoe, ensure
The integral reset effect of brake-shoe, so as to ensure the normal driving of vehicle, and is ready, it is tied for next time stable braking
Structure stability is good；While resetting position-limit mechanism can not influence the rotation of driven brake-shoe, moreover it is possible to ensure driven brake-shoe
The effect that can stablize on certain position, avoiding driven brake-shoe from position offset occur influences showing for brake effect
As occur, and further ensure that driven brake-shoe can uniform stressed, ensure the relevant mechanism part of driven brake-shoe
It is not damaged, extends the service life of driven brake-shoe, resets position-limit mechanism of simple structure and strong practicability.
The drum brake of the multisection type brake-shoe of the present invention, one end of the active brake hoof is connected simultaneously with cam mechanism
Driven by cam mechanism；The other end of the active brake hoof is fixed on back-plate by fixed rotary column, active brake hoof
The end can be relatively fixed rotary column rotate and with driven brake-shoe be sequentially connected；The biography of the driven brake-shoe and active brake hoof
Dynamic connecting pin is connected on back-plate also by a fixation rotary column.
Further, the active brake hoof on the drive connection end of driven brake-shoe with being integrally formed with runner；It is described
It is toothed around on runner；Runner on the active brake hoof is pacified with the runner on driven brake-shoe each other by gear teeth meshing
Dress.
Further, the gearratio of the active brake hoof and the gear teeth on driven brake-shoe is 1:1.
Due to using the above structure, active brake hoof and driven braking being installed using the rotation intermeshing with the gear teeth
Hoof, when active brake hoof is subject to the tension force of cam mechanism, active brake hoof can drive at the same time so as to brake-shoe turn to
Purpose is braked in the synchronous realization that is bonded with brake drum of active brake hoof；Return on active brake hoof and/or driven brake-shoe
When spring recovers the position of brake-shoe, can ensure two groups of active brake hoof and the synchronization that driven brake-shoe resets with it is consistent
Property, so as to ensure the stability of whole brake structural so that brake can be chronically at one it is stable and good
Braking effect；Said structure is simple, and effect propety is good, is the much progress on brake structural improves.
The drum brake of the multisection type brake-shoe of the present invention, is equipped with the active brake hoof and driven brake-shoe and rubs
Pad, and the friction plate on active brake hoof and driven brake-shoe is set independently of each other.
Due to using the above structure, mutually independent friction plate causes its not extruded mutually in mechanism each,
Avoid the phenomenon of friction plate fin from occurring, further enhance the braking ability of brake, even if the friction plate in some
One of be damaged when needing replacing, other friction plates can also continue to keep good friction catch effect, ensure that vehicle
Security when driving, avoids causing the generation of traffic accident since friction plate damages in roadway way.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1st, its is simple in structure, easy for installation, and performance is good.
2nd, manufacture craft is simple, and use cost is low；
3rd, stable structure, good braking effect；
4th, the security during vehicle driving is improved；
5th, there is good use value, be adapted to promote and apply.
Brief description of the drawings
Fig. 1 is the structure diagram of the drum brake of multisection type brake-shoe；
Marked in figure：1- brake drums, 2- back-plates, 3- active brake hoof, 4- cam mechanisms, 5- return springs one, 6- is driven
Brake-shoe, 7- friction plates, 8- fix rotary column, 9- runners, 10- return springs two, 11- sliding slots, 12- sliding blocks.
Embodiment
With reference to embodiment, the present invention is described in detail.
In order to which the object, technical solution and advantage of invention are more clearly understood, with reference to embodiments, to the present invention into
Row is further described.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not used to limit
The fixed present invention.
Embodiment 1
As shown in Figure 1, a kind of drum brake of multisection type brake-shoe, including back-plate 2, brake-shoe and cam mechanism 4；Institute
State the same side on back-plate 2 and brake-shoe and cam mechanism 4 are installed；One end of the brake-shoe is connected with cam mechanism 4, and
The opening and closing in the rotation process of cam mechanism 4, so as to be bonded friction with brake drum 1；The brake-shoe and the friction side wall of brake drum 1
On friction plate 7 is installed；The brake-shoe includes active brake hoof 3 and driven brake-shoe 6；The active brake hoof 3 and cam
Mechanism 4 connects, and one end and the active brake hoof 3 of driven brake-shoe 6 are sequentially connected so that driven brake-shoe 6 can be made with active
The dynamic synchronization of hoof 3 opening and closing are bonded rubbing action with brake drum 1；It is also associated with resetting position restrainer on the other end of the driven brake-shoe
Structure.The both sides of the cam mechanism 4 are equipped with brake-shoe, return spring are connected between the brake-shoe of both sides, for brake-shoe
Return after opening.The active brake hoof 3 is equipped with two groups of both sides for being symmetrically arranged at cam mechanism 4, with two groups actively
Brake-shoe 3 is sequentially connected with two groups of driven brake-shoes 6 respectively, and two groups of driven 6 mirror symmetries of brake-shoe are arranged in back-plate 2
On；Return spring 1 is connected between active brake hoof 3 described in two；It is equipped between driven brake-shoe 6 described in two and resets limit
Position mechanism.The reset position-limit mechanism includes sliding slot 11, sliding block 12 and return spring 2 10；The sliding slot 11 is arranged on braking bottom
On plate, and between the driven brake-shoe end being arranged symmetrically；It is equipped with sliding block 12 in the sliding slot 11, the sliding block 12 can be
Perpendicular to the square upward sliding of driven brake-shoe opening and closing in sliding slot 11；Return spring two is symmetrically symmetrically connected with the sliding block 12
10；Driven brake-shoe is connected by the return spring 2 10 with sliding block 12.The sliding slot 11 is rectangular recess, the upper end of sliding slot 11
Face below driven brake-shoe with being located in same level；The axial cross section of the sliding block 12 is I-shaped, and its one end is caught in
In sliding slot 11, the other end is stretched out outside sliding slot 11 to be connected with return spring two.Return spring 1 and return spring 2 10 difference
On the opening and closing direction of active brake hoof 3 and driven brake-shoe 6；The return spring 1 and return spring 2 10 are mutually flat
Row is set.One end of the active brake hoof 3 is connected with cam mechanism 4 and is driven by cam mechanism 4；The active brake hoof 3
The other end be fixed on by fixed rotary column 8 on back-plate 2, the end of active brake hoof 3 can be relatively fixed rotary column 8 and rotate simultaneously
It is sequentially connected with driven brake-shoe 6；The drive connection end of the driven brake-shoe 6 and active brake hoof 3 is fixed also by one to be turned
Column 8 is connected on back-plate 2.The active brake hoof 3 on the drive connection end of driven brake-shoe 6 with being integrally formed with runner
9；It is toothed around on the runner 9；Runner 9 on the active brake hoof 3 and the runner 9 on driven brake-shoe 6 each other by
Gear teeth meshing is installed.The gearratio of the active brake hoof 3 and the gear teeth on driven brake-shoe 6 is 1:The 1 active brake hoof 3
With friction plate 7 is equipped with driven brake-shoe 6, and the friction plate 7 on active brake hoof 3 and driven brake-shoe 6 is set independently of each other
Put.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all essences in the present invention
All any modification, equivalent and improvement made within refreshing and principle etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of drum brake of multisection type brake-shoe, it is characterised in that including back-plate（2）, brake-shoe and cam machine
Structure（4）；The back-plate（2）Upper the same side is provided with brake-shoe and cam mechanism（4）；One end of the brake-shoe and cam
Mechanism（4）Connection, and in cam mechanism（4）Rotation process in opening and closing so that and brake drum（1）Fitting friction；The braking
Hoof and brake drum（1）Friction plate is installed on friction side wall（7）；The brake-shoe includes active brake hoof（3）With driven braking
Hoof（6）；The active brake hoof（3）With cam mechanism（4）Connection, driven brake-shoe（6）One end and active brake hoof（3）Pass
Dynamic connection so that driven brake-shoe（6）Can be with active brake hoof（3）Synchronous opening and closing and brake drum（1）It is bonded rubbing action；Institute
State and be also associated with resetting position-limit mechanism on the other end of driven brake-shoe.
2. the drum brake of multisection type brake-shoe according to claim 1, it is characterised in that the cam mechanism（4）
Both sides be equipped with brake-shoe, be connected with return spring between the brake-shoe of both sides, for brake-shoe open after return.
3. the drum brake of multisection type brake-shoe according to claim 2, it is characterised in that the active brake hoof
（3）Cam mechanism is symmetrically arranged at equipped with two groups（4）Both sides, with two groups of active brake hoof（3）It is sequentially connected with respectively
Two groups of driven brake-shoes（6）, two groups of driven brake-shoes（6）Mirror symmetry is arranged in back-plate（2）On；Active system described in two
Dynamic hoof（3）Between be connected with return spring one（5）；Driven brake-shoe described in two（6）Between be equipped with reset position-limit mechanism.
4. the drum brake of multisection type brake-shoe according to claim 3, it is characterised in that the reset position-limit mechanism
Including sliding slot（11）, sliding block（12）With return spring two（10）；The sliding slot（11）It is arranged on back-plate, and positioned at symmetrical
Between the driven brake-shoe end of arrangement；The sliding slot（11）It is interior to be equipped with sliding block（12）, the sliding block（12）Can be in sliding slot（11）
The interior square upward sliding perpendicular to driven brake-shoe opening and closing；The sliding block（12）On be symmetrically symmetrically connected with return spring two
（10）；The return spring two（10）By driven brake-shoe and sliding block（12）Connection.
5. the drum brake of multisection type brake-shoe according to claim 4, it is characterised in that the sliding slot（11）For square
Connected in star, sliding slot（11）Upper surface and driven brake-shoe below in same level；The sliding block（12）Axial direction
Section is I-shaped, and its one end is caught in sliding slot（11）Interior, the other end stretches out sliding slot（11）It is connected outside with return spring two.
6. the drum brake of multisection type brake-shoe according to claim 4 or 5, it is characterised in that the return spring
One（5）With return spring two（10）It is located at active brake hoof respectively（3）With driven brake-shoe（6）Opening and closing direction on；Described time
Position spring one（5）With return spring two（10）It is arranged in parallel.
7. the drum brake of the multisection type brake-shoe according to claim 1 or 2 or 3 or 4 or 5, it is characterised in that described
Active brake hoof（3）One end and cam mechanism（4）Connect and by cam mechanism（4）Driving；The active brake hoof（3）It is another
One end passes through fixed rotary column（8）It is fixed on back-plate（2）On, active brake hoof（3）The end can be relatively fixed rotary column（8）Turn
It is dynamic and with driven brake-shoe（6）It is sequentially connected；The driven brake-shoe（6）With active brake hoof（3）Drive connection end also lead to
Cross a fixation rotary column（8）It is connected to back-plate（2）On.
8. the drum brake of multisection type brake-shoe according to claim 7, it is characterised in that the active brake hoof
（3）With driven brake-shoe（6）Drive connection end on be integrally formed with runner（9）；The runner（9）On be toothed around；It is described
Active brake hoof（3）On runner（9）With driven brake-shoe（6）On runner（9）Installed each other by gear teeth meshing.
9. the drum brake of multisection type brake-shoe according to claim 8, it is characterised in that the active brake hoof
（3）With driven brake-shoe（6）On the gear teeth gearratio be 1:1.
10. the drum brake of the multisection type brake-shoe according to claim 1 or 2 or 3 or 4 or 6 or 8 or 9, its feature exist
In the active brake hoof（3）With driven brake-shoe（6）On be equipped with friction plate（7）, and active brake hoof（3）With driven system
Dynamic hoof（6）On friction plate（7）Set independently of each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711214638.5A CN107939865A (en) | 2017-11-28 | 2017-11-28 | A kind of drum brake of multisection type brake-shoe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711214638.5A CN107939865A (en) | 2017-11-28 | 2017-11-28 | A kind of drum brake of multisection type brake-shoe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107939865A true CN107939865A (en) | 2018-04-20 |
Family
ID=61949318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711214638.5A Pending CN107939865A (en) | 2017-11-28 | 2017-11-28 | A kind of drum brake of multisection type brake-shoe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107939865A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723737A (en) * | 2019-01-25 | 2019-05-07 | 泰州神舟传动科技有限公司 | A kind of list hoof pin brake |
| CN110107621A (en) * | 2019-05-29 | 2019-08-09 | 苏州经贸职业技术学院 | A kind of New drum type brake apparatus |
-
2017
- 2017-11-28 CN CN201711214638.5A patent/CN107939865A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109723737A (en) * | 2019-01-25 | 2019-05-07 | 泰州神舟传动科技有限公司 | A kind of list hoof pin brake |
| CN110107621A (en) * | 2019-05-29 | 2019-08-09 | 苏州经贸职业技术学院 | A kind of New drum type brake apparatus |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180420 |
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| WD01 | Invention patent application deemed withdrawn after publication |