CN2779151Y - Automobile disk brake - Google Patents
Automobile disk brake Download PDFInfo
- Publication number
- CN2779151Y CN2779151Y CN 200520033433 CN200520033433U CN2779151Y CN 2779151 Y CN2779151 Y CN 2779151Y CN 200520033433 CN200520033433 CN 200520033433 CN 200520033433 U CN200520033433 U CN 200520033433U CN 2779151 Y CN2779151 Y CN 2779151Y
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- CN
- China
- Prior art keywords
- pushing block
- braking plate
- screw rod
- pushing
- pushing tow
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to an automobile disk brake which is provided with a machine body, a first brake block, a second brake block, ejector pads, a pushing structure of the second brake block and a return spring of the pushing structure, wherein the first brake block is fixedly connected with the machine body; the second brake block is in driving connection with the pushing structure of the second brake block through the ejector pads; the pushing structure of the second brake block is movably arranged on the machine body; the first brake block and the second brake block are correspondingly arranged and a gap is formed between the first brake block and the second brake block. The automobile disk brake is characterized in that each ejector pad is composed of a first ejector pad unit and a second ejector pad unit which are arranged on the pushing structure of the second brake block and are respectively contacted with both ends of the same plane of the second brake block. Double ejector pads are adopted by the automobile disk brake to simultaneously push the brake blocks, and the pushing force is uniform and balanced, so the operating reliability of the brake is ensured, and the performance is more stable.
Description
Technical field
The utility model relates to the disk type braker that uses on a kind of automobile.
Background technique
China's utility model patent discloses a kind of automobile pressure disk type braker for No. 01212585.7, and this break has body, first braking plate, second braking plate, pushing block and the second braking plate pushing tow structure.During this break work, normally brake petal is applied braking force by the driver, braking force is passed to the second braking plate pushing tow structure, the pushing tow structure is to the second braking plate pushing tow then, allow first braking plate apply clamping braking force, thereby realize braking automotive wheel with the second braking plate pair brake disc of fixedlying connected with wheel.But, the second braking plate pushing tow structure of above-mentioned disk type braker is when pushing tow second braking plate, has only a pushing block between the second braking plate pushing tow structure and second braking plate, thereby it is uneven to cause braking force to be distributed on the rubbing surface of brake disc when applying braking force, it is inhomogeneous to allow braking plate that the rubbing surface of brake disc is applied braking force for a long time, can cause the brake disc rubbing surface to wear and tear unevenly, the brake disc rubbing surface of high speed rotating contacts with the braking plate rubbing surface relatively, the as easy as rolling off a log braking plate that causes is loosening, even breaks and cause braking failure.Therefore, above-mentioned disk type braker exists defective to need to improve.
The model utility content
The purpose of this utility model is to improve on the structure of existing disk type braker, provides a kind of performance better, the more reliable automotive disc brake of working.
Automotive disc brake of the present utility model has body, first braking plate, second braking plate, pushing block, the second braking plate pushing tow structure and pushing tow structure Returnning spring, described first braking plate is connected with fixed with body, described second braking plate is in transmission connection by the pushing block and the second braking plate pushing tow structure, the described second braking plate pushing tow structure is movably arranged on the body, described first braking plate and second braking plate are oppositely arranged and have the gap between the two, it is characterized in that described pushing block is made up of the first pushing block unit and the second pushing block unit, the described first pushing block unit and the second pushing block unit all are arranged on the second braking plate pushing tow structure, and respectively with second braking plate with the one side two end in contact.
First braking plate described in the utility model is fixedlyed connected with body, and it is fixedly connected can be multiple mode: as, riveted joint fixedly connected by link, welding or fixing etc. by sleeve structure.
Be to rely on the driver that the braking force conducting system is applied braking force during the utility model work, braking force is conducted to the second braking plate pushing tow structure stress end, force the second braking plate pushing tow structure to overcome the reposition force of pushing tow structure Returnning spring and first, second pushing block unit that pushing tow contacts with second braking plate, finally allow second braking plate and first braking plate that is fixed on the body under the state of even, balance, clamp down on the brake disc of high speed rotating jointly.
In addition, the long-term friction of fixedly connected brake disc and braking plate can allow both wearing and tearing all occur on the automobile tire, and makes the gap increasing between the first braking plate rubbing surface and the second braking plate rubbing surface.In order to allow first, the working stroke gap that the rubbing surface of second braking plate and the rubbing surface of wheel brake can be maintained fixed, need above-mentioned first, the second pushing block unit is regulated, it is the gap compensation that rubs of common indication, so the utility model can also be provided with the first pushing block screw rod and the second pushing block screw rod, described first, the second pushing block screw rod all has connecting end and adjustable side, the described second braking plate pushing tow structure is provided with and first, the second pushing block screw rod outside thread adapts and parallel has an internal thread through hole, the connecting end of the described first pushing block unit and the first pushing block screw rod flexibly connects, the connecting end of the second pushing block unit and the second pushing block screw rod flexibly connects, described first, the second pushing block screw rod passes through hole and the kinematic pair that is threaded into by cooperatively interacting that the second braking plate pushing tow structure has internal thread, described first, the adjustable side of the second pushing block screw rod all is exposed to outside the second braking plate pushing tow structure.The first above-mentioned pushing block screw rod and the second pushing block screw rod can be independent parts, also can be the parts that combined by a plurality of parts, as combiner of constituting by spline with part that this spline adapts etc.
Secondly, in order to make wheel braking rapider, on the body of the present utility model lever augmented structure can also be set, to strengthen braking dynamics to brake disc, described lever augmented structure has force side and force side, and the force side of described lever augmented structure and the second braking plate pushing tow structure are in transmission connection.Above-mentioned lever augmented structure can be multiple structural type, as: hinge fixed pivot lever, make the lever of fulcrum, make the lever etc. of the cutting plane semicircular in shape of the lever of fulcrum or bearing of the center of circle of rolling bearing with bulb.When the lever of fulcrum is made in the center of circle of adopting rolling bearing, can effectively overcome the warping force that produces when lever is stirred the second braking plate pushing tow structure, make this pushing tow structure motion more level and smooth, and can avoid the stuck phenomenon of pushing tow structure.
In order to make above-mentioned first, working clearance between the second braking plate rubbing surface and the brake disc rubbing surface can obtain adjusting in above-mentioned lever augmented structure promotes the process of the second braking plate pushing tow structure motion automatically, just can allow the lever augmented structure described in the utility model have moving tooth, and on the first pushing block screw rod the coaxial unilateral bearing (can certainly replace) that is nested with by other unidirectional drive mechanism, the core wheel of above-mentioned unilateral bearing is fixedlyed connected with the first pushing block screw rod, the wheel hub of described unilateral bearing has the gear teeth that match with described moving tooth, be of the engagement of described lever augmented structure by the moving tooth and the gear teeth, realize the transmission that turns to unilateral bearing, described first, the adjustable side of the second pushing block screw rod all has sprocket wheel, and described sprocket wheel all connects by chain transmission.Like this, when the gap between the rubbing surface of the rubbing surface of first, second braking plate and brake disc increases because of wearing and tearing,, just can realize automatic compensation to above-mentioned gap by above-mentioned moving tooth, unilateral bearing and lever augmented structure.
The system that during this use is novel driver's braking force is transmitted to the second braking plate pushing tow structure both can be a hydraulic system, also can be pressure system.
Compared with the aforementioned existing similar products, automotive disc brake of the present utility model adopts two pushing blocks, the i.e. first pushing block unit and second pushing block unit pushing tow braking plate simultaneously, can allow be applied on the braking plate jacking force evenly, balance, make that the rubbing surface of brake disc and braking plate is smooth, guaranteed the reliability of break work, made its performance more stable.
Content of the present utility model further illustrates with the following Examples, but content of the present utility model is not limited only to content related among the embodiment.
Description of drawings
Fig. 1 is the plan view of automotive disc brake among the embodiment.
Fig. 2 is the A of Fig. 1---the A sectional view.
Fig. 3 is the B of Fig. 1---the B sectional view.
Fig. 4 is the C portion partial enlarged drawing of Fig. 2.
Fig. 5 is the structural representation of the first pushing block screw rod among the embodiment.
Fig. 6 is the plan view of Fig. 5.
Embodiment
Shown in Fig. 1～6, automotive disc brake in the present embodiment has body 1, first braking plate 2, second braking plate 3, pushing block, the second braking plate pushing tow structure 5 and pushing tow structure Returnning spring 4, described first braking plate 2 is fixedlyed connected with body 1, described second braking plate 3 is in transmission connection by the pushing block and the second braking plate pushing tow structure 5, the described second braking plate pushing tow structure 5 is movably arranged on the body 1, described first braking plate 2 and second braking plate 3 are oppositely arranged and have the gap between the two, it is characterized in that described pushing block is made up of the first pushing block unit 6 and the second pushing block unit 7, the described first pushing block unit 6 and the second pushing block unit 7 all are arranged on the second braking plate pushing tow structure 5, and respectively with two end in contact of second braking plate 3 with one side.
In order to regulate the gap length between first braking plate 2 and second braking plate 3, automotive disc brake in the present embodiment also is provided with the first pushing block screw rod 8 and the second pushing block screw rod 9, described first, the second pushing block screw rod 8,9 all have connecting end and adjustable side, the described second braking plate pushing tow structure is provided with and first, the second pushing block screw rod 8,9 outside threads adapt and parallel have an internal thread through hole, the connecting end 10 of the described first pushing block unit 6 and the first pushing block screw rod flexibly connects, the connecting end 11 of the second pushing block unit 7 and the second pushing block screw rod flexibly connects, described first, the second pushing block screw rod 8,9 pass the second braking plate pushing tow structure has the through hole of internal thread and connects into kinematic pair, described first by the screw thread 14 that cooperatively interacts, the second pushing block screw rod 8,9 adjustable side 12,13 all are exposed to outside the second braking plate pushing tow structure 5.
In order more effective and labour-saving disk type braker to be operated, the also described body 1 of present embodiment is provided with lever augmented structure 15, described lever augmented structure 15 has force side 16 and force side 17, and the force side 16 of described lever augmented structure and the second braking plate pushing tow structure 5 are in transmission connection.Set lever augmented structure 15 is to make the lever of fulcrum of the center of circle of rolling bearing in the present embodiment, have eccentric distance e between the force side 16 of this lever augmented structure 15 and the center of circle of above-mentioned rolling bearing, and the center of circle of force side 17, force side 16 and rolling bearing (being the fulcrum of lever augmented structure 15) is arranged in order.Like this, the lever augmented structure 15 described in the present embodiment has just had compact structure, the outstanding advantage of reinforcement effect.
In order to realize the function of automatic compensation gap, the described lever augmented structure 15 of present embodiment is provided with moving tooth 18, the coaxial unilateral bearing 19 that is equipped with on the described first pushing block screw rod 8, the core wheel of described unilateral bearing 19 is fixedlyed connected with the first pushing block screw rod 8, the wheel hub of described unilateral bearing 19 has the gear teeth 20 (gear teeth 20 that are provided with on the present embodiment middle (center) bearing 19 are quadrant tooth) that match with described moving tooth 18, described lever augmented structure 15 is by the engagement of moving tooth 18 with the gear teeth 20, realize the transmission that turns to unilateral bearing 19, described first, the second pushing block screw rod 8,9 adjustable side 12,13 have sprocket wheel 21,22, described sprocket wheel 21,22 all are in transmission connection by chain 23.
Be to rely on the driver that the braking force conducting system is applied braking force during present embodiment work, braking force is conducted to the second braking plate pushing tow structure, 5 force sides, force the second braking plate pushing tow structure 5 to overcome the reposition force of pushing tow structure Returnning spring 4 and first, second pushing block unit 6,7 that pushing tow contacts with second braking plate 3, finally allow second braking plate 3 and first braking plate 2 that is fixed on the body 1 under the state of even, balance, clamp down on the brake disc of high speed rotating jointly.
In the process of the automotive disc brake that uses present embodiment, when the gap between the rubbing surface of the rubbing surface of first, second braking plate 2,3 and brake disc increases because of wearing and tearing, the stroke that lever augmented structure 15 promotes 5 motions of the second braking plate pushing tow structure just can increase, the gear teeth 20 that are enough to make moving tooth 18 drive on the unilateral bearing 19 when the trip rotate, promptly exceed the setting value position and need carry out gap when compensation, the unilateral bearing 19 of rotation just can allow the first pushing block screw rod 8 with respect to 5 rotations of the second braking plate pushing tow structure.Because the above-mentioned first pushing block screw rod 8 constitutes kinematic pair with this pushing tow structure 5 by the through hole with screw thread 14, the first pushing block screw rod 8 of this moment just can rotate the above-mentioned first pushing block unit 6 of pushing tow, allow the spacing between the first pushing block unit 6 and the above-mentioned pushing tow structure 5 strengthen, the first pushing block unit 6 and second braking plate, 3 surface of contact have also promptly been strengthened to the length between above-mentioned pushing tow structure 5 and lever augmented structure 15 surface of contact, in order to fill up the wearing clearance that the friction of above-mentioned brake disc and braking plate is produced.When the above-mentioned first pushing block screw rod 8 carried out gap compensation rotation, the sprocket wheel 21 of its adjustable side 12 just can carry out transmission by the sprocket wheel 22 of the chain 23 and the second pushing block screw rod adjustable side 13, promptly drove the second pushing block screw rod 9 synchronously and also carried out gap compensation rotation.When pushing tow structure Returnning spring 4 allows above-mentioned pushing tow structure 5 reset, though above-mentioned moving tooth 18 also with unilateral bearing 19 on the gear teeth 20 engagement and drive its backward rotation, but because the unidirectional transmission agency of unilateral bearing 19, the first pushing block screw rod 8 of this moment can't rotate with unilateral bearing 19, promptly the first pushing block screw rod 8 can not rotate in pushing tow structure 5 reseting procedures, and the length of Zeng Changing also promptly remains unchanged before this.When the gap between the rubbing surface of the rubbing surface of brake disc and braking plate returns to the setting value position, lever augmented structure 15 promotes in the process of the above-mentioned second braking plate pushing tow structure 5 motions once more, just the gear teeth 20 that do not have unnecessary stroke to make moving tooth 18 drive on the unilateral bearing 19 allow the first pushing block screw rod 8 with respect to 5 rotations of the second braking plate pushing tow structure, thus the stop gap compensation.
For the ease of installing and debugging, first, second pushing block screw rod 8,9 in the present embodiment all adopts the spline assembled screw rod with thread head.
Claims (5)
1, a kind of automotive disc brake, has body, first braking plate, second braking plate, pushing block, the second braking plate pushing tow structure and pushing tow structure Returnning spring, described first braking plate is fixedlyed connected with body, described second braking plate is in transmission connection by the pushing block and the second braking plate pushing tow structure, the described second braking plate pushing tow structure is movably arranged on the body, described first braking plate and second braking plate are oppositely arranged and have the gap between the two, it is characterized in that described pushing block is made up of the first pushing block unit and the second pushing block unit, the described first pushing block unit and the second pushing block unit all are arranged on the second braking plate pushing tow structure, and respectively with second braking plate with the one side two end in contact.
2, automotive disc brake as claimed in claim 1, it is characterized in that being provided with the first pushing block screw rod and the second pushing block screw rod, described first, the second pushing block screw rod all has connecting end and adjustable side, the described second braking plate pushing tow structure is provided with and first, the second pushing block screw rod outside thread adapts and parallel has an internal thread through hole, the connecting end of the described first pushing block unit and the first pushing block screw rod flexibly connects, the connecting end of the second pushing block unit and the second pushing block screw rod flexibly connects, described first, the second pushing block screw rod passes through hole and the kinematic pair that is threaded into by cooperatively interacting that the second braking plate pushing tow structure has internal thread, described first, the adjustable side of the second pushing block screw rod all is exposed to outside the second braking plate pushing tow structure.
3, automotive disc brake as claimed in claim 1, it is characterized in that described body is provided with lever augmented structure, described lever augmented structure has force side and force side, and the force side of described lever augmented structure and the second braking plate pushing tow structure are in transmission connection.
4, automotive disc brake as claimed in claim 2, it is characterized in that described body is provided with lever augmented structure, described lever augmented structure has force side and force side, and the force side of described lever augmented structure and the second braking plate pushing tow structure are in transmission connection.
5, automotive disc brake as claimed in claim 4, it is characterized in that described lever augmented structure has moving tooth, the coaxial unilateral bearing that is equipped with on the described first pushing block screw rod, the core wheel of described unilateral bearing is fixedlyed connected with the first pushing block screw rod, the wheel hub of described unilateral bearing has the gear teeth that match with described moving tooth, adjustable side described, the second pushing block screw rod all has sprocket wheel, and described sprocket wheel all connects by chain transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033433 CN2779151Y (en) | 2005-03-11 | 2005-03-11 | Automobile disk brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520033433 CN2779151Y (en) | 2005-03-11 | 2005-03-11 | Automobile disk brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2779151Y true CN2779151Y (en) | 2006-05-10 |
Family
ID=36753239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520033433 Expired - Lifetime CN2779151Y (en) | 2005-03-11 | 2005-03-11 | Automobile disk brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2779151Y (en) |
-
2005
- 2005-03-11 CN CN 200520033433 patent/CN2779151Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 610061, Xie Huanwu, 4, unit 76, Wanke garden, 1 Jingan Road, Jinjiang District, Sichuan, Chengdu, Patentee after: Ke Shouqian Address before: 610061, Dongfang times mall, No. 18, down east street, Chengdu, Sichuan (430) Patentee before: Ke Shouqian |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20150311 Granted publication date: 20060510 |