CN206904102U - One kind benz remodeling half opening drum brake - Google Patents
One kind benz remodeling half opening drum brake Download PDFInfo
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- CN206904102U CN206904102U CN201720723690.2U CN201720723690U CN206904102U CN 206904102 U CN206904102 U CN 206904102U CN 201720723690 U CN201720723690 U CN 201720723690U CN 206904102 U CN206904102 U CN 206904102U
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- brake
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- hoof
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Abstract
One kind benz remodeling half opening drum brake, including back-plate, friction plate and symmetrically arranged left brake-shoe and right braking hoof, an arc groove is respectively arranged with the respective outer end edges at described left brake-shoe and right braking hoof both ends, at the left brake-shoe and the arc groove at right braking hoof rotating shaft end respectively with left shoe shaft and right shoe shaft clamping, and by keeping spring to keep being brought into close contact, described left shoe shaft and right shoe shaft are removably arranged on back-plate rotating shaft end by Elastic Circular pivot pin, left shoe shaft and right shoe shaft are arranged through back-plate in " 8 " font.The utility model is using pair design of shoe shaft half openings, and spring is kept tightly to coordinate left and right brake-shoe and left and right shoe shaft by two, eliminate brake-shoe bushing in the prior art and shoe shaft fit clearance problem, it is overproof to considerably reduce brake cylindrical total run-out caused by brake-shoe with the gap of shoe plate between centers, so as to improve braking effect.
Description
Technical field
Automobile brake technical field is the utility model is related to, particularly belongs to a kind of benz remodeling half opening drum brake
Device.
Background technology
Important component of the brake as automobile, concerns vehicle performance and traffic safety.Automobile is generally divided into disc type brake
Two kinds of device and drum brake.For drum brake, automobile brake steps on brake pedal mainly by driver, braking
Hydraulic coupling transmission is supplied to wheel cylinder, struts brake-shoe, and shoe brake rubs with brake drum, produces brake force.Work as driver
After releasing of brake pedal, the distress resolves in brake wheel cylinder, shoe brake return.
China Patent Publication No. is a CN106195063A patent of invention, discloses a kind of aluminium alloy drum brake
Assembly, and specifically disclose following technical characteristic：Including back-plate, brake cam, friction plate and two systems being oppositely arranged
Dynamic hoof, the brake cam are rotatably arranged on back-plate, and one end of two brake-shoes passes through backing pin shaft and back-plate
Be hinged, the other end offsets with brake cam, and the brake-shoe is located at the both sides of back-plate, and is provided between two brake-shoes
The return springs resetted for brake-shoe, the friction plate is the friction plate of not uniform thickness, and friction plate is fixed on brake-shoe
Outer surface, the brake cam are in serpentine, and the back-plate and brake-shoe are that aluminium alloy is made.
Above-mentioned patent improves braking reliability to a certain extent, but still following both sides defect be present：
1st, installing/dismounting is difficult, the cooperation completion by two backing pin shafts and axis hole and the braking bottom respectively of two brake-shoes
Being hinged for plate, adds the intensity of assembling, and production efficiency is low.
2nd, the gap and fit precision of brake-shoe and backing pin between centers are easily caused the cylindrical total run-out increase of brake assembly, shadow
Ring braking effect.
Therefore, it is badly in need of a kind of new drum brake technology, to solve the defects of above-mentioned brake, promotes brake
It is fast-developing.
The content of the invention
In view of the above-mentioned problems existing in the prior art, the purpose of this utility model is to provide a kind of easy to assembly, braking effect
The good benz remodeling half opening drum brake of fruit.
To achieve the above object, the technical solution adopted in the utility model is as follows：
One kind benz remodeling half opening drum brake, including back-plate, friction plate and symmetrically arranged left brake-shoe
With right system
Dynamic hoof, the friction plate are riveted on the outer surface of left brake-shoe and right braking hoof, described left brake-shoe and right system
An arc groove is respectively arranged with the respective outer end edges at dynamic hoof both ends, described left brake-shoe and right braking hoof dog point
Arc groove is respectively arranged with roller, and keeps flexible fastening, the left brake-shoe and right braking hoof rotating shaft by return spring
At the arc groove at end respectively with left shoe shaft and right shoe shaft clamping, and by keep spring keep be brought into close contact, it is described
Left shoe shaft and right shoe shaft back-plate rotating shaft end is removably arranged on by Elastic Circular pivot pin, left shoe shaft and
Right shoe shaft arranges that the left brake-shoe and right braking hoof are at inner arc surface and inner arc muscle through back-plate in " 8 " font
Provided with reinforcement.
As a kind of embodiment, reinforcement is respectively arranged with the outside of left brake-shoe and right braking hoof rotating shaft end and dog point
Cushion block, strengthen cushion block structure and be consistent with tendons of beef, mutton or pork plate end arc groove.
As a kind of embodiment, in addition to dust cover, the dust cover is removably attachable on back-plate.
As a kind of embodiment, in addition to orthochoanitic grease nipple, the orthochoanitic grease nipple is vertically set on braking bottom
Plate communicates close to the side of dust cover, and with the brake cam axis hole in back-plate.
As a kind of embodiment, panel and the gusset integrally casting of the left brake-shoe and right braking hoof shape.
Compared to prior art, advantageous effects of the present utility model are：
1st, the design of double shoe shaft half openings is used at the back-plate of brake and brake-shoe cooperation, and passes through two
Keep spring tightly to coordinate left and right brake-shoe and left and right shoe shaft, avoid using bushing, while also eliminate in the prior art
Brake-shoe bushing and shoe shaft fit clearance problem, and can be close to during brake-shoe abrasion under spring tension with shoe shaft, significantly
Degree reduction brake cylindrical total run-out caused by brake-shoe with the gap of shoe plate between centers is overproof, so as to improve braking effect.
3rd, left shoe shaft and right shoe shaft are removably arranged on back-plate by Elastic Circular pivot pin, prevent shoe plate
Axle play in the axial direction；When abrasion deformation, which occurs, in shoe shaft to be needed to change, shoe shaft can be directly changed, without
Whole back-plate is changed, repair and replacement are convenient, cost is low.
4th, reinforcement cushion block is respectively arranged with the outside of left brake-shoe and right braking hoof rotating shaft end and dog point, ensure that roller
The full contact of axle, and the lifting surface area with shoe shaft is also increased, so that brake force is transmitted steadily.
5th, left brake-shoe and right braking hoof are provided with reinforcement at inner arc surface and inner arc muscle, and braking is ensure that from structure
Performance safety is reliable.
Brief description of the drawings
Fig. 1 is front view of the present utility model；
Fig. 2 is side view of the present utility model；
Fig. 3 is the old money drum-like brake structure schematic diagram of benz.
Label is schematically as follows in figure：1- back-plates；The left brake-shoes of 2-；3- right braking hoofs；4- dust covers；5- friction plates；
6- return springs；7- return spring pins；The left shoe shafts of 8-；9- keeps spring；The right shoe shafts of 10-；11- reinforcements；12- Elastic Circulars
Pivot pin；13- orthochoanitic grease nipples；13- rollers.
Embodiment
The technical solution of the utility model is described in further detail below in conjunction with accompanying drawing.
As illustrated, a kind of benz remodeling half opening drum brake, including back-plate 1, friction plate 5 and it is symmetrical arranged
Left brake-shoe 2 and right braking hoof 3, the friction plate 5 is riveted on the outer surface of left brake-shoe 2 and right braking hoof 3, and its feature exists
In：An arc groove is respectively arranged with described left brake-shoe 2 and the respective outer end edges at the both ends of right braking hoof 3, it is described
The arc groove of left brake-shoe 10 and right braking hoof 11 dog point is respectively arranged with roller 13, and keeps bullet by return spring 6
Property is fixed, at the arc groove at left brake-shoe 2 and right braking hoof 3 the rotating shaft end respectively with left shoe shaft 8 and right shoe shaft
10 clampings, and by keeping spring 9 to keep being brought into close contact, described left shoe shaft 8 and right shoe shaft 10 pass through elastic circular shaft
Pin 12 is removably arranged on the rotating shaft end of back-plate 1, and left shoe shaft 8 and right shoe shaft 10 are in " 8 " word through back-plate 1
Type arranges that the left brake-shoe 2 and right braking hoof 3 are provided with reinforcement 11 at inner arc surface and inner arc muscle.
As further technical scheme, the outside of the left rotating shaft end of brake-shoe 2 and right braking hoof 3 and dog point is set respectively
There is reinforcement cushion block, reinforcement cushion block structure is consistent with tendons of beef, mutton or pork plate end arc groove, not only adds the axially loaded with roller 13
Area, ensures the full contact of roller shaft, and also increases the lifting surface area with left shoe shaft 8 and right shoe shaft 10, from
And it is steady to cause brake force to transmit, on the other hand reduces the abrasion of tendons of beef, mutton or pork plate, improve the service life of brake shoe assembly.
As further technical scheme, the utility model also includes dust cover 4, and the dust cover 4 removably connects
On back-plate 1, dust is avoided to enter in brake, so that it is guaranteed that brake remains normal operation.
As further technical scheme, the utility model also includes orthochoanitic grease nipple 13, the orthochoanitic grease nipple
13 are vertically set on back-plate 1 close to the side of dust cover 4, and are communicated with the brake cam axis hole in back-plate 1.
During concrete operations：When brake cam rotates, the system by left brake-shoe 2 and right braking hoof 3 of involute contour equivalent
Moved end struts laterally, and left brake-shoe 2 and right braking hoof 3 open laterally rotating around left shoe shaft 8 and right shoe shaft 10, left system
Friction plate 5 on dynamic hoof 8 and right braking hoof 10 and the brake drum friction catch in wheel；Brake cam turns round after the completion of braking,
Left brake-shoe 2 and right braking hoof 3 inwardly shrink return under the pulling force effect of return spring 6, and friction plate 5 separates with brake drum,
Release braking.
It is last it is necessarily pointed out that：It the foregoing is only the preferable embodiment of the utility model, but this
The protection domain of utility model is not limited thereto, and any one skilled in the art discloses in the utility model
In technical scope, the change or replacement that can readily occur in should all be covered within the scope of protection of the utility model.
Claims (5)
1. one kind benz remodeling half opening drum brake, including back-plate, friction plate and symmetrically arranged left brake-shoe and
Right braking hoof, the friction plate are riveted on the outer surface of left brake-shoe and right braking hoof, it is characterised in that：Described left brake-shoe
With an arc groove, described left brake-shoe and right braking hoof system are respectively arranged with the respective outer end edges at right braking hoof both ends
The arc groove of moved end is respectively arranged with roller, and keeps flexible fastening, the left brake-shoe and right braking by return spring
At the arc groove at hoof rotating shaft end respectively with left shoe shaft and right shoe shaft clamping, and by keeping spring to keep close patch
Close, described left shoe shaft and right shoe shaft are removably arranged on back-plate rotating shaft end, left hoof by Elastic Circular pivot pin
Bobbin and right shoe shaft arrange through back-plate in " 8 " font, the left brake-shoe and right braking hoof inner arc surface with
Reinforcement is provided with inner arc muscle.
A kind of 2. benz remodeling half opening drum brake according to claim 1, it is characterised in that：Left brake-shoe and the right side
Reinforcement cushion block, the reinforcement cushion block structure and tendons of beef, mutton or pork plate end arc are respectively arranged with the outside of brake-shoe rotating shaft end and dog point
Groove is consistent.
A kind of 3. benz remodeling half opening drum brake according to claim 1 or 2, it is characterised in that：Also include anti-
Dust hood, the dust cover are removably attachable on back-plate.
A kind of 4. benz remodeling half opening drum brake according to claim 1 or 2, it is characterised in that：Also include straight
Neck formula grease nipple, the orthochoanitic grease nipple are vertically set on back-plate close to the side of dust cover, and with back-plate
Brake cam axis hole communicate.
A kind of 5. benz remodeling half opening drum brake according to claim 1 or 2, it is characterised in that：The left system
The panel of dynamic hoof and right braking hoof shapes with gusset integrally casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720723690.2U CN206904102U (en) | 2017-06-21 | 2017-06-21 | One kind benz remodeling half opening drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720723690.2U CN206904102U (en) | 2017-06-21 | 2017-06-21 | One kind benz remodeling half opening drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206904102U true CN206904102U (en) | 2018-01-19 |
Family
ID=61285181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720723690.2U Active CN206904102U (en) | 2017-06-21 | 2017-06-21 | One kind benz remodeling half opening drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206904102U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425970A (en) * | 2018-03-22 | 2018-08-21 | 江苏三志制动器有限公司 | A kind of reinforced hot investment casting single shaft pin brake assembly |
| CN109210108A (en) * | 2018-11-19 | 2019-01-15 | 江苏三志制动器有限公司 | A kind of graceful rear accurate dual openings casting brake of reinforcement |
-
2017
- 2017-06-21 CN CN201720723690.2U patent/CN206904102U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108425970A (en) * | 2018-03-22 | 2018-08-21 | 江苏三志制动器有限公司 | A kind of reinforced hot investment casting single shaft pin brake assembly |
| CN109210108A (en) * | 2018-11-19 | 2019-01-15 | 江苏三志制动器有限公司 | A kind of graceful rear accurate dual openings casting brake of reinforcement |
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