CN2232873Y - Circumferential expanding vehicle brake - Google Patents
Circumferential expanding vehicle brake Download PDFInfo
- Publication number
- CN2232873Y CN2232873Y CN 95219215 CN95219215U CN2232873Y CN 2232873 Y CN2232873 Y CN 2232873Y CN 95219215 CN95219215 CN 95219215 CN 95219215 U CN95219215 U CN 95219215U CN 2232873 Y CN2232873 Y CN 2232873Y
- Authority
- CN
- China
- Prior art keywords
- plate
- guiding
- brake
- inner cavity
- exocoel
- 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 - Fee Related
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- Braking Arrangements (AREA)
Abstract
The utility model relates to a circumferential expanding vehicle brake used for braking a vehicle. The circumferential expanding vehicle brake comprises a brake drum fixed on a wheel hub, and a circular friction filler block which is arranged on a brake bottom plate on a bridge pipe or a knuckle body and is formed by a plurality of spring slices which are connected. The inner ring of the friction filler block is provided with an annular air chamber whose air inlet is connected with an air inlet pipe and a brake valve. The friction filler block and the air chamber are clamped between an annular guiding inner cavity plate and a guiding outer cavity plate. The guiding inner cavity plate and the guiding outer cavity plate are fixedly connected with a support ring and a brake bottom plate for wheels.
Description
The utility model relates to a kind of car brake, particularly a kind of circumference spreading formula car brake.
Common employing shoe brake on the present vehicle, this brake equipment mainly is made up of gas supply mechanism, control mechanism, transmission device, stop mechanism each several part, this transmission device comprises compressed air brake cylinder, piston push rod, braking adjusting arm again, compositions such as cam, drive control cock by brake pedal, control cock control pressure gas, the input brake air chamber promotes brake operating diaphragm and agitates the drive piston push rod to move forward, promote braking adjusting arm, compress the braking that realizes wheel with the brake wheel that is rotating thereby push the outside spreading of friction lining assembly open through cam again by adjusting arm.Draw return in through driving device diaphragm return when brake pedal take-off the brake shoe plate assembly spurs shoe plate under the pull back spring effect, brake activation valve is got ready the waste gas exhaust to atmosphere for newly once braking.The shortcoming of this shoe brake mainly is: complex structure, and discontinuity, the area of contact of friction lining and brake wheel is about 50-60%, when drag, helps gesture hoof (promptly main hoof) to stop tighter and tighter, and trailing shoe (from hoof) has and stops more loose and more loose trend.Main like this hoof causes friction lining and drg parts discontinuity equalization with the overbalance of making a concerted effort from the braking of hoof.Service life is shorter.
The purpose of this utility model is to provide a kind of circumference spreading formula car brake, mainly be to constitute the braking carrier bar with the non-rigid connection multi-disc friction of spring leaf pad, at braking carrier bar inner ring one annular air-pocket is set, the control high-pressure gas enters the lining pad generation footpath of braking air bag jack-up border and outwards moves, the brake wheel that rotates is produced brake action, the transmission device that can save shoe brake like this, make designs simplification, and make brake wheel evenly stressed, guarantee good braking effect, and can prolong the service life of brake friction material and brake wheel.
The technical solution of the utility model is:
A kind of circumference spreading formula car brake, comprise be fixed on the brake wheel on the wheel hub and be installed in bridge tube or knuckle body on back-plate on a plurality of lining pads that are connected into the circle shape with spring leaf, at the lining pad inner ring annular air-pocket is set, the admission port of this air bag and air inlet pipe and brake activation valve link, this friction shoe and air bag are clamped between ring-type guiding inner cavity plate and the guiding exocoel plate, and this guiding inner cavity plate is captiveed joint with the wheel braking base plate through carrier ring with guiding exocoel plate; The lining pad generation footpath that enters braking air bag jack-up border through brake activation valve control high-pressure gas is outwards moved, and the brake wheel that rotates is produced brake action; Pressed gas in the end of braking rear gasbag is through the pressure release of brake activation valve self-bleeding, and the drag friction pad is depressed under the pressure effect of reseting spring leaf, throws off with brake wheel, and produces then brake wheel brake off of the above gap of 0.3mm.
Described circumference spreading formula car brake is characterized in that: be provided with annular resistant to elevated temperatures rim strip between air bag and lining pad.
Described circumference spreading formula car brake is characterized in that: be provided with a plurality of air bleed holes on guiding exocoel plate.
Described circumference spreading formula car brake, it is characterized in that: this guiding inner cavity plate and guiding exocoel plate are by passing being bolted on the car brakeing base plate of guiding inner cavity plate, guiding exocoel plate, carrier ring, the end of this bolt is provided with perforation, match with a throttled nut that is provided with open slot, a spring cotter passes open slot on the throttled nut and the perforation on the bolt.So no matter automobile to overtake or when reversing can both the lock screw nut.
Effect of the present utility model is:
1, simple in structure, low cost of manufacture.The utility model comparison shoe brake has saved transmission devices such as wheel braking air chamber, piston push rod, adjusting arm, worm and gear, cam, and can directly reequip on existing vehicle, and cost is lower.
2, uniform, the balance of braking force, not only guaranteed good braking effect but also made friction lining and brake wheel durable in use, increase the service life.
3, friction lining of the present utility model and brake wheel area of contact can reach more than 95%, and the friction moment that produces than shoe brake under same radially tension effect is big, good braking effect.
4, use and safeguard extremely conveniently, do not need accurately to adjust the static clearance between friction lining and brake wheel, because of being promotes the friction shoe footpath in the airbag aeration mode outwards to move, so have the automatic compensation brake efficiency.
5, can guarantee that at the air bleed hole that is provided with on the exocoel plate venting fully after last once end of braking, when glancing impact next time because the residual air emptying of air bag surrounding space, so pressed gas can enter air bag swimmingly, guarantee that braking is reliable rapidly, and can reduce the air consumption of braking.
6, owing to, so the utility model cooperates spring cotter to lock with throttled nut, can prevent to become flexible the assurance traffic safety in the situation that vehicle advances or the two kinds of damped conditions of moveing backward may cause the fixing bolts and nuts of exocoel plate and inner cavity plate to get loose.
Fig. 1 is the structure cutaway view of a kind of embodiment of the utility model.
Fig. 2 is the left view of Fig. 1.
The utility model will be described in further detail as follows in conjunction with the accompanying drawings:
See figures.1.and.2; a kind of circumference spreading formula car brake of the present utility model; comprise the brake wheel that is fixed on the wheel hub (figure does not show) and be installed in steering swivel or the back bridge tube on back-plate 1 on a plurality of with the reseting spring leaf 3 non-rigid lining pads 4 that are connected into the circle shape; be provided with reseting spring leaf 3 in lining pad 4 inboards; be provided with air bag 6 at lining pad 4 inner rings; be provided with annular high temperature resistant rim strip 5 between air bag 6 and the lining pad 4; can form the thermal insulation protection effect to air bag 6, prolong the service life of air bag 6.Lining pad 4 and air bag 6 are clamped between ring-type guiding inner cavity plate 2 and the guiding exocoel plate 7.Inner cavity plate 2 comprises a circumferential part 22, and circumferential part 22 1 epitaxial lateral overgrowths are stretched and formed guide part 21, and opposite side extends internally and forms fixed part 23; Exocoel plate 7 also comprises a circumferential part 72, the one epitaxial lateral overgrowth is stretched and is formed guide part 71, opposite side extends internally and forms fixed part 74, on the circumferential part 72 of exocoel plate 7, be provided with the perforation 73 that the air inlet pipe 61 of air feed capsule 6 passes, air inlet pipe 61 links with the brake activation valve (not shown), to air bag input pressure gas.Also uniform on the circumferential part 72 of exocoel plate 76 air bleed holes 75 are set, discharge clean with the air that air bag 6 is residual after guaranteeing once the braking knot on every side, making next time, the glancing impact pressed gas can enter air bag 6 rapidly swimmingly, realize rapid failure-free braking, and can reduce the required air consumption of each braking.
Claims (4)
1, a kind of circumference spreading formula car brake, comprise be fixed on the brake wheel on the wheel hub and be installed in bridge tube or knuckle body on back-plate on a plurality ofly be connected into the lining pad of circle shape with spring leaf, it is characterized in that:
At the lining pad inner ring annular air-pocket is set, the admission port of this air bag and air inlet pipe and brake activation valve link, this friction shoe and air bag are clamped between ring-type guiding inner cavity plate and the guiding exocoel plate, and this guiding inner cavity plate is captiveed joint with the wheel braking base plate through carrier ring with guiding exocoel plate.
2, circumference spreading formula car brake according to claim 1 is characterized in that: be provided with annular resistant to elevated temperatures rim strip between air bag and lining pad.
3, circumference spreading formula car brake according to claim 1 is characterized in that: be provided with a plurality of air bleed holes on guiding exocoel plate.
4, circumference spreading formula car brake according to claim 1, it is characterized in that: this guiding inner cavity plate and guiding exocoel plate are by passing being bolted on the car brakeing base plate of guiding inner cavity plate, guiding exocoel plate, carrier ring, the end of this bolt is provided with perforation, match with a throttled nut that is provided with open slot, a spring cotter passes open slot on the throttled nut and the perforation on the bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219215 CN2232873Y (en) | 1995-08-17 | 1995-08-17 | Circumferential expanding vehicle brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95219215 CN2232873Y (en) | 1995-08-17 | 1995-08-17 | Circumferential expanding vehicle brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2232873Y true CN2232873Y (en) | 1996-08-14 |
Family
ID=33867468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95219215 Expired - Fee Related CN2232873Y (en) | 1995-08-17 | 1995-08-17 | Circumferential expanding vehicle brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2232873Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116281708A (en) * | 2023-03-28 | 2023-06-23 | 广西壮族自治区特种设备检验研究院 | Traction type elevator brake with micro-elliptical elastic deformation |
-
1995
- 1995-08-17 CN CN 95219215 patent/CN2232873Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116281708A (en) * | 2023-03-28 | 2023-06-23 | 广西壮族自治区特种设备检验研究院 | Traction type elevator brake with micro-elliptical elastic deformation |
| CN116281708B (en) * | 2023-03-28 | 2023-12-05 | 广西壮族自治区特种设备检验研究院 | Traction type elevator brake with micro-elliptical elastic deformation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |