CN201604629U - Brake with hand brake - Google Patents
Brake with hand brake Download PDFInfo
- Publication number
- CN201604629U CN201604629U CN2010203019632U CN201020301963U CN201604629U CN 201604629 U CN201604629 U CN 201604629U CN 2010203019632 U CN2010203019632 U CN 2010203019632U CN 201020301963 U CN201020301963 U CN 201020301963U CN 201604629 U CN201604629 U CN 201604629U
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- brake
- ejector pin
- caliper
- parking brake
- bearing
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Abstract
The utility model provides a brake with hand brake, belonging to the brake technical field of motor-driven vehicle; the utility model solves the problems that the reliability and sensitivity of the existing brake are low, the structure is complex, the action is unstable and the effect is poor; the brake with hand brake comprises a clamp body and a brake disc arranged on the clamp body; an oil cavity is arranged in the clamp body, a piston which can push the brake disc to move is arranged in the oil cavity, a lifting pin penetrates through the clamp body, the lifting pin is arranged at one side of the oil cavity, and the inner end of the lifting pin pushes against to the brake disc, and the outer end thereof penetrates out of the clamp body and is connected with a manual driving mechanism which can drive the lifting pin to slide axially along the clamp body. In the brake of the utility model, a hand brake device which can directly act on the brake disc and can compensate abrasion loss of the brake disc is arranged on the original brake additionally, the reliability and sensitivity are improved, and the brake in the utility model has the advantages of simple structure, strong action force, saving space, reducing weight and prolonging the service life.
Description
Technical field
The utility model belongs to motor vehicle brake device technical field, particularly a kind of drg with parking brake.
Background technology
Drg is movement parts in the machinery is stopped or slowing down, in power actuated vehicle the effect of drg essential, be mainly used in the braking in the driving and stay movingly, be divided into running brake and Parking Brake usually respectively, i.e. service brake and parking brake.When driving, generally all adopt running brake, be convenient to ramp to stop in the process of advancing, and singly not to make automobile keep motionless, if service brake is just adopted braking during standstill when malfunctioning, after car comes to a complete stop, will use braking during standstill, prevent that vehicle from moving ahead and the back slips.Usually adopt two covers brake system separately in self-propelled vehicle, the reliability of brake system and sensitivity are still waiting to improve so in actual applications, have also occupied the space simultaneously, have increased weight, have improved cost.
For addressing the above problem, people have expected running brake and Parking Brake integrator, make two kinds of brake system can be used for improving the reliability and the sensitivity of brake system simultaneously, if but the brake device structure that adopts hydraulic pressure Parking one very complexity and cost height.So people have proposed the drg of various schemes, for example, Chinese patent literature once disclosed a kind of caliper disc parking brake [China Patent No.: ZL200520051324.4; Granted publication number: CN2813385Y], comprise drg body, piston body, brake disc and brake plate; Brake disc is fixedly arranged on the tire, and brake plate adds the both sides of being located at brake disc, and piston body is located in the drg body and is positioned on the axial location of brake plate, and piston body links to each other with the service brake master cylinder by a piston body tubing interface; One end of one lever is fixedly arranged on the bearing of drg body one end, and the other end links to each other with the parking brake backguy of vehicle, and also is provided with the spring that links to each other with the drg body on this pull bar; Be arranged with a push rod in this piston body, an end of push rod stretches out outside the piston body and touches mutually with a cam, and this cam is fixed on the bearing; The other end of push rod then is located in the piston body by a piston ring set, and is provided with jump ring in the junction of push rod and piston ring.
Though this caliper disc parking brake provides the drg that is provided with handbrake mechanism, but still have following problem: one, this caliper disc parking brake drives the piston body motion by application force between push rod that is the conical plug shape in piston body and the piston ring that is complementary and the static friction force between piston ring and the piston body, complex structure, relation between the application force is required complexity, simultaneously to each relevant parts material requirements height.Two, this caliper disc parking brake utilizes braking liquid pressure reduction in the piston body to promote to change the position of push rod and the relative piston body of piston ring, reaches the abrasion loss of compensation brake plate, thereby braking liquid pressure reduction is required height, and have fugitiveness, and implementation result is poor.
Summary of the invention
The purpose of this utility model is to have the problems referred to above at existing technology, has proposed a kind of drg that effectively, is easy to realize the parking brake effect on former drg and can compensates brake facing worn-down band parking brake simultaneously simple in structure.
The purpose of this utility model can realize by following technical proposal: a kind of drg with parking brake, comprise caliper and the brake facing that is arranged on the caliper, has oil pocket in the described caliper, in described oil pocket, be provided with the piston that can promote the brake facing motion, it is characterized in that, be equipped with ejector pin on the described caliper, described ejector pin is positioned at a side of oil pocket and the inner of ejector pin is resisted against on the above-mentioned brake facing, and the outer end passes caliper and is connected with and can drives ejector pin along caliper manual drives mechanism in axial sliding.
The drg of this band parking brake is the hand brake device that can directly promote the brake facing motion is set on the caliper of caliper disk brake, hand brake device comprises ejector pin and manual drives mechanism, thereby make and get final product also parking brake braking of hydraulic braking in the same drg, improve the fiduciary level and the alerting ability of brake system, and can reduce the cost and the space of vehicle.Brake facing comprises by base plate and is connected in the friction shoe of being made by high-abrasive material on the base plate and forms.Ejector pin is resisted against on the base plate, and the axial action force direction of ejector pin is identical with the force direction of piston.Ejector pin is positioned at the oil pocket outside and acts directly on the brake facing, have simple in structure effectively, be easy to characteristics such as realization.
In the drg of above-mentioned band parking brake, the both sides of described oil pocket are equipped with an ejector pin.The ejector pin that the oil pocket both sides are provided with avoided ejector pin to penetrate oil pocket and produce need sealing, brake facing is subjected to that two ejector pins act on simultaneously and point of action center symmetry simultaneously, and is more stressed evenly from making brake facing, acts on more effective.
In the drg of above-mentioned band parking brake, described manual drives mechanism comprises the camshaft that is rotatably connected on the caliper and is connected in rocking arm on the camshaft that centrifugal of described camshaft is resisted against on the outer face of two ejector pins simultaneously.Utilize rocking arm to rotate eccentric cam, cam is conflicted and promote ejector pin and implement braking, thereby reduce the braking application of force, simplified structure reaches useful effect.
In the drg of above-mentioned band parking brake, described manual drives mechanism comprises the rocking arm that is hinged on the caliper and is connected in the depression bar of rocking arm one end that the other end is the end that links to each other with the parking brake backguy; The hinge-point that is hinged with caliper on the described rocking arm is positioned near the depression bar place, and described depression bar is resisted against on the outer face of two ejector pins simultaneously.Described promotion ejector pin actv. has utilized the lever principle of rocking arm; the distance of distance much larger than depression bar to hinge-point that links to each other with the parking brake backguy and hold hinge-point of rocking arm; thus can effectively reduce the required power that applies of operator, thus make manipulation more easy and convenient, improve braking effect.
In the drg of above-mentioned band parking brake, be fixed with bearing on the described caliper, above-mentioned rocking arm is hinged on the bearing.Bearing can be connected on the caliper by connection modes such as bolts, and rocking arm can conveniently be installed rocking arm by bearing is hinged, can reduce the change to original caliper simultaneously, avoids and making its mould to the caliper redesign, thereby effectively reduces productive costs.
In the drg of above-mentioned band parking brake, bearing is passed in the outer end of described ejector pin, is provided with bearing carrier ring between described bearing and the ejector pin.The inside surface roughness of bearing carrier ring is low, can effectively reduce the friction force between ejector pin and the bearing carrier ring, is propping up the block hole axis to slip thereby be convenient to ejector pin.Above-mentioned bearing carrier ring is the Nonlubricated bearing cover, thereby has guaranteed also that when improving service life this drg need not the lubricated and maintenance of exception in the life-cycle process that reality is used.
In the drg of above-mentioned band parking brake, the outer end of described ejector pin is arranged with and can makes ejector pin have axially the outwards spring of movement tendency, and an end of spring acts on the bearing, and the other end acts on the ejector pin.And when reducing or cancel the application force of parking brake backguy to rocking arm, spring can make the axially outside motion of pin its end disengaging brake facing simultaneously, reduces or cancel the application force of brake facing to brake disc thereby reach.
In the drg of above-mentioned band parking brake, the locations that has been threaded on the described ejector pin, described locations is resisted against on the bearing.Locations can be resisted against under the effect of spring on the bearing, and promptly locations can limit the stroke that ejector pin axially outwards moves, and also is the spacing that has guaranteed between ejector pin inner end surface and the brake facing.Locations is a nut, and nut inner wall has screw thread and can make things convenient for ejector pin and be connected, and the outer wall of nut has the portion of putting forth effort can make things convenient for the application of force of instrument to nut again.After the brake facing wearing and tearing, spacing between ejector pin inner end surface and the brake facing increases, this moment, rotating nut promptly changed its position on ejector pin, can make the spacing between ejector pin inner end surface and the brake facing return to smaller value, thereby reduce the parking brake push rod because the excessive and unable problem of parking brake stroke of braking and wearing and tearing and causing.
Compared with prior art, the drg of this band parking brake has the following advantages:
1, the drg of this band parking brake is installed hand brake device in original drg, has improved the reliability and the sensitivity of brake system, has saved the space, has reduced weight, provides cost savings.
2, the drg of this band parking brake is located on the caliper by ejector pin and is positioned at the outer both sides of oil pocket, and ejector pin acts directly on the brake facing, thereby this device is easy to realize on the basis of original drg, simple and convenient is saved cost, and simple in structure, application force is strong, and is effective.
3, thereby the drg of this band parking brake is regulated the distance that parking brake promotes stroke by regulating the locations that is threaded with ejector pin, realized compensation, solved parking brake action effect that problems such as parking brake stroke excessive and parking brake in brake facing wearing and tearing back is unable cause and reduced or lost efficacy the axial abrasion loss of brake facing.
Description of drawings
Fig. 1 is the sectional structure scheme drawing of the drg of this band parking brake.
Fig. 2 is the sectional structure scheme drawing of another angle of the drg of this band parking brake.
Fig. 3 is the planar structure scheme drawing of the drg of this band parking brake.
Fig. 4 is the planar structure scheme drawing of another angle of the drg of this band parking brake.
Among the figure, 1, caliper; 2, brake facing; 3, oil pocket; 4, piston; 5, ejector pin; 6, rocking arm; 7, depression bar; 8, bearing; 9, bearing carrier ring; 10, spring; 11, locations.
The specific embodiment
Below be specific embodiment of the utility model and in conjunction with the accompanying drawings, the technical solution of the utility model is further described, but the utility model be not limited to these embodiment.
Embodiment one
As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the drg of this band parking brake comprises caliper 1, brake facing 2, piston 4, ejector pin 5, manual drives mechanism.
Specifically, have on the caliper 1 of the drg of this band parking brake and be provided with in oil pocket 3 and the oil pocket 3 and can be provided with sealing member between oil pocket 3 inwalls and piston 4 outer walls along oil pocket 3 inwalls piston 4 in axial sliding, caliper 1 is provided with the oil pipe mouth that communicates with oil pocket 3.Thereby the impetus end place of above-mentioned piston 4 is provided with and can promotes the moving brake facing 2 that moves along the piston axial direction with relative with moving brake facing 2 and be fixed on and decide brake facing 2 on the caliper 1 by piston 4, moving brake facing 2 with decide the brake disc that brake facing 2 can clamping be fixed on the tire and reach brake action.Be equipped with two ejector pins 5 on the above-mentioned caliper 1, both sides and every side that ejector pin 5 is positioned at oil pocket 3 are provided with one, the ejector pin 5 that oil pocket 3 both sides are provided with avoided ejector pin 5 to penetrate oil pocket 3 and produce need sealing.The axial action force direction of ejector pin 5 is identical with the force direction of piston 4, the inner of ejector pin 5 directly is resisted against on the moving brake facing 2, while brake facing 2 is subjected to two ejector pins 5 and acts on simultaneously and point of action center symmetry, from making brake facing 2 more stressed even, acts on more effective.The outer end of ejector pin 5 passes caliper 1 and passes the bearing 8 that is fixed on the caliper 1, and the outer end of ejector pin 5 is connected with and can drives ejector pin 5 along caliper 1 manual drives mechanism in axial sliding.Bearing 8 can be connected on the caliper 1 by connection structures such as bolts.
Manual drives mechanism comprises rocking arm 6 that is hinged on the bearing 8 that is fixed on caliper 1 and the depression bar 7 that is connected in rocking arm 6 one ends, and rocking arm 6 other ends link to each other with the parking brake backguy.Has the boss that radially protrudes on above-mentioned ejector pin 5 outer faces, depression bar 7 is cylindric and this depression bar 7 is resisted against on the raised head face of two ejector pin 5 outer ends, promote the lever principle that ejector pin 5 actvies have utilized rocking arm 6; distance of distance that links to each other with the parking brake backguy and hold hinge-point of rocking arm 6; drive the enforcement braking force that depression bar 7 promotes ejector pin 5 thereby can effectively reduce the required rocking arm 6 that applies of operator; be easy to light manipulation, improve braking effect much larger than depression bar 7 to hinge-point.Rocking arm 6 can reduce the change to original caliper 1 simultaneously by bearing 8 hinged can conveniently installations, avoids and making its mould to caliper 1 redesign, thereby effectively reduces productive costs.
Be provided with the low bearing carrier ring of inside surface roughness 9 between ejector pin 5 and the bearing 8, and bearing carrier ring 9 can effectively reduce the friction force between ejector pin 5 and the bearing carrier ring 9 and be convenient to ejector pin 5 axially slip in bearing 8 through holes.Bearing carrier ring 9 is Nonlubricated bearing cover 9 simultaneously, has promptly improved also to have guaranteed that this drg need not the lubricated and maintenance of exception service life in the life-cycle process that reality is used.The outer end of ejector pin 5 is arranged with the spring 10 that can make ejector pin 5 have axially outside movement tendency and be compressive state, one end of spring 10 acts on the bearing 8, the other end acts on the boss that ejector pin 5 outer ends are provided with, the boss of ejector pin 5 outer ends can keep off the active area that has increased ejector pin 5 outer ends and manual drives mechanism by spring 10 simultaneously, spring 10 can make and reduce or cancellation parking brake backguy during to the state of the application force of rocking arm 6, the axially outside motion of pin breaks away from brake facing 2 in its end simultaneously, thereby reaches the application force that reduces or cancel 2 pairs of brake discs of brake facing.
The friction shoe that brake facing 2 comprises the base plate that is positioned on the caliper 1 and is fixed on the base plate and can conflicts with brake disc, friction shoe is made by high-abrasive materials such as cast stone, polymeric liner, rich chromium cast iron, manganese alloys.
When implementing the parking brake glancing impact, promote rocking arm 6 ejector pin 5 is axially slided under the effect of depression bar 7, and ejector pin 5 is inner promotes moving brake facing 2 and move axially, decide brake facing 2 and compress brake disc and reach the parking brake brake action thereby cooperate; When the parking brake end of braking, discharge rocking arm 6, under spring 10 restoring force effects, ejector pin 5 outwards endwisely slips, and discharges moving brake facing 2 and promote depression bar 7 to drive rocking arm 6 reinstatement attitude positions, removes the parking brake brake action.
After brake facing 2 wearing and tearing, ejector pin 5 moves axially and compresses moving brake facing 2 strokes increase, causes parking brake unable, thereby causes the parking brake action effect to reduce or inefficacy.At this moment, can with locations 11 by with being threaded to ejector pin 5 outer end side shafts of ejector pin 5 upper screw rods to moving, shorten parking brake and promote stroke, compensation brake facing 2 axial abrasion losies, thus reduce the excessive and unable problem of parking brake stroke that the parking brake push rod causes because of the brake wearing and tearing.
Embodiment two
Present embodiment is basic identical with structure and the principle of embodiment one, different place is: manual drives mechanism comprises the camshaft that is rotatably connected on the bearing 8 that is fixed on caliper 1 and is connected in rocking arm 6 on the camshaft, and camshaft has centrifugal and centrifugal portion and is resisted against on the end face of outer end boss of two ejector pins 5.Utilize rocking arm 6 to rotate eccentric cam, cam is conflicted and promote ejector pin 5 enforcements and brake, this mechanism reduces the braking application of force, and is simultaneously simple in structure effective.
Specific embodiment described herein only is that the utility model spirit is made casehistory.The utility model person of ordinary skill in the field can make various modifications or replenishes or adopt similar mode to substitute described specific embodiment, but can't depart from spirit of the present utility model or surmount the defined scope of appended claims.
Although this paper has used caliper 1 morely; Brake facing 2; Oil pocket 3; Piston 4; Ejector pin 5; Rocking arm 6; Depression bar 7; Bearing 8; Bearing carrier ring 9; Spring 10; Locations 11 terms such as grade, but do not get rid of the possibility of using other term.Using these terms only is in order to describe and explain essence of the present utility model more easily; They are construed to any additional restriction all is contrary with the utility model spirit.
Claims (8)
1. drg with parking brake, comprise caliper (1) and be arranged on brake facing (2) on the caliper (1), has oil pocket (3) in the described caliper (1), in described oil pocket (3), be provided with the piston (4) that can promote brake facing (2) motion, it is characterized in that, be equipped with ejector pin (5) on the described caliper (1), described ejector pin (5) is positioned at a side of oil pocket (3) and the inner of ejector pin (5) is resisted against on the above-mentioned brake facing (2), and the outer end passes caliper (1) and is connected with and can drives ejector pin (5) along caliper (1) manual drives mechanism in axial sliding.
2. a kind of drg with parking brake according to claim 1 is characterized in that the both sides of described oil pocket (3) are equipped with an ejector pin (5).
3. a kind of drg according to claim 1 with parking brake, it is characterized in that, described manual drives mechanism comprises the camshaft that is rotatably connected on the caliper (1) and is connected in rocking arm (6) on the camshaft that centrifugal of described camshaft is resisted against on the outer face of two ejector pins (5) simultaneously.
4. a kind of drg with parking brake according to claim 1 is characterized in that, described manual drives mechanism comprises rocking arm (6) that is hinged on the caliper (1) and the depression bar (7) that is connected in rocking arm (6) one ends, and the other end is the end that links to each other with the parking brake backguy; The hinge-point that described rocking arm (6) is gone up and caliper (1) is hinged is positioned near depression bar (7) to be located, and described depression bar (7) is resisted against on the outer face of two ejector pins (5) simultaneously.
5. according to claim 3 or 4 described a kind of drgs, it is characterized in that be fixed with bearing (8) on the described caliper (1), above-mentioned rocking arm (6) is hinged on the bearing (8) with parking brake.
6. a kind of drg with parking brake according to claim 5 is characterized in that bearing (8) is passed in the outer end of described ejector pin (5), is provided with bearing carrier ring (9) between described bearing (8) and the ejector pin (5).
7. according to claim 1 or 2 or 3 or 4 described a kind of drgs with parking brake, it is characterized in that, the outer end of described ejector pin (5) is arranged with and can makes ejector pin (5) have axially the outwards spring (10) of movement tendency, one end of spring (10) acts on the bearing (8), and the other end acts on the ejector pin (5).
8. according to claim 1 or 2 or 3 or 4 described a kind of drgs, it is characterized in that with parking brake, the locations (11) that has been threaded on the described ejector pin (5), described locations (11) is resisted against on the bearing (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203019632U CN201604629U (en) | 2010-01-29 | 2010-01-29 | Brake with hand brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010203019632U CN201604629U (en) | 2010-01-29 | 2010-01-29 | Brake with hand brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201604629U true CN201604629U (en) | 2010-10-13 |
Family
ID=42949338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010203019632U Expired - Lifetime CN201604629U (en) | 2010-01-29 | 2010-01-29 | Brake with hand brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201604629U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799368A (en) * | 2017-04-28 | 2018-11-13 | 廖志贤 | For the caliper arrangement of parking brake |
-
2010
- 2010-01-29 CN CN2010203019632U patent/CN201604629U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108799368A (en) * | 2017-04-28 | 2018-11-13 | 廖志贤 | For the caliper arrangement of parking brake |
| CN108799368B (en) * | 2017-04-28 | 2020-05-12 | 廖志贤 | Caliper device capable of being used for hand brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 317600 Huihai Road, Shamen Town, Yuhuan City, Taizhou City, Zhejiang Province Patentee after: Yuhuan Excellent Brake Co., Ltd. Address before: 317600 Chengguan Qiantangyang Industrial Zone, Yuhuan County, Zhejiang Province Patentee before: Yuhuan Zhuoyue Brake Co.,Ltd. |
|
| CP03 | Change of name, title or address | ||
| CX01 | Expiry of patent term |
Granted publication date: 20101013 |
|
| CX01 | Expiry of patent term |