CN2578219Y - Mechanical jaw-type brake - Google Patents
Mechanical jaw-type brake Download PDFInfo
- Publication number
- CN2578219Y CN2578219Y CN 02280313 CN02280313U CN2578219Y CN 2578219 Y CN2578219 Y CN 2578219Y CN 02280313 CN02280313 CN 02280313 CN 02280313 U CN02280313 U CN 02280313U CN 2578219 Y CN2578219 Y CN 2578219Y
- Authority
- CN
- China
- Prior art keywords
- piston
- screw rod
- guide rod
- brake
- ball
- 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 discloses a mechanical jaw-type braking device. The inner part of a braking jaw body is provided with a roller ball sleeve screw rod, and the braking jaw body is connected with a rocking arm. The roller ball sleeve screw rod is locked tightly by a locking nut, and the roller ball sleeve screw rod is provided with a roller ball sleeve and roller balls. The roller ball sleeve screw rod is provided with a V type roller ball groove, and the roller ball sleeve screw rod is connected with a screw thread guide rod via a thrust slide bearing. The edge of the screw thread guide rod is provided with a spring base sleeve and a spring, and the screw thread guide rod is also connected with an adjusting sleeve. The connecting screw thread between the screw thread guide rod and the adjusting sleeve is a four-line tooth-shaped drive screw thread. The adjusting sleeve is connected with a piston via an end surface end thrust bearing, and the piston contacts a braking piece. The circumference surface of the piston is provided with a rectangular sealed ring, and the front end of a rectangular sealed ring groove in the braking jaw body is provided with a chamfering structure. The utility model solves the problem that the gap resulting from the abrasion of the braking piece is unfavorable for braking, and has the advantages of automatic abrasion compensation and safe brake.
Description
One, technical field
The utility model relates to a kind of drg, particularly relates to a kind of mechanical caliper brake of motor bike front and back wheel braking usefulness.
Two, background technology
Though the mechanical caliper brake braking that existing motorcycle brake is used is sensitive, easy to maintenance, after brake plate is worn, need carry out the hand adjustment compensation.And there is the too much or very few situation of adjusting unavoidably in hand adjustment, so that braking is had a negative impact, and contains potential potential safety hazard.
Three, utility model content
The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of mechanical caliper brake of gap of can automatic compensation being caused because of the brake plate wearing and tearing is provided.
The purpose of this utility model realizes by following technical solution: a kind of mechanical caliper brake, comprise brake clamp, rocking arm, drag-line, brake plate, the installation ball overlaps screw rod and links to each other with rocking arm in braking clamp body, ball cover screw rod is locked with jam nut, on ball cover screw rod, ball cover and ball are housed, described ball cover screw rod is provided with " V " type ball grooves, and ball can roll along the inclined-plane therein; Ball cover screw rod links to each other with threaded guide rod by thrust slide bearing, and spring socket sleeve and spring are equipped with in the threaded guide rod limit, and threaded guide rod links to each other with the adjustment swivel nut again, and threaded guide rod and the connecting thread of adjusting between the swivel nut are four scroll saw profile of tooth motion threads; Adjust swivel nut and link to each other with piston by the end face thrust bearing, described piston contacts with brake plate; On the periphery of piston, rectangular seal is housed, and the front end of the rectangular seal ring recess in the braking clamp body has chamfering structure.
After adopting the utility model structure, when brake plate weares and teares the gap increase that is caused, utilize the forward and reverse longitudinal travel difference that is produced that moves of piston to realize the automatic compensation abrasion loss, to eliminate the gap.Therefore, the utility model compared with prior art has wear automatic-compensation, brake safe failure-free advantage.
Four, description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model machinery caliper brake.
Fig. 2 is the partial enlarged drawing of the mark I among Fig. 1.
Fig. 3 is the partial enlarged drawing of the mark II among Fig. 1.
Fig. 4 is threaded guide rod among Fig. 1 and the partial enlarged drawing of adjusting parts such as swivel nut.
Five, the specific embodiment
Referring to figs. 1 through Fig. 4 as can be known, a kind of mechanical caliper brake of the utility model, comprise parts such as brake clamp 1, rocking arm 16, drag-line 24, brake plate 27, the installation ball overlaps screw rod 11 and links to each other with 16 rocking arms in brake clamp 1 body, 15 lockings of ball cover screw rod 11 usefulness jam nuts, on ball cover screw rod 11 ball cover 12 and ball 10 are housed, described ball cover screw rod 11 is provided with " V " type ball grooves 13, and ball 10 can roll along the inclined-plane therein; Ball cover screw rod 11 links to each other with threaded guide rod 18 by thrust slide bearing 9, spring socket sleeve 6 and spring 7 are equipped with in threaded guide rod 18 limits, threaded guide rod 18 links to each other with adjustment swivel nut 23 again, threaded guide rod 18 and adjust connecting thread between the swivel nut 23 be four scroll saw profile of tooth motion threads (only so, friction coefficient between the two is low, and the friction force that is produced during screw motion is little); Adjust swivel nut 23 and link to each other with piston 2 (only so, force of rolling friction is little, and when adjusting swivel nut 23 rotations, piston 2 does not rotate) by end face thrust bearing 22, described piston 2 contacts with brake plate 27; Rectangular seal 4 is housed on the periphery of piston 2, and the front end of the rectangular seal ring recess in brake clamp 1 body has chamfering structure (only so, when piston 2 travels forward, can drive rectangular seal 4 and make its distortion and hold piston 2 tightly, could guarantee the return amount).This drg can be installed on the motorcycle vibration absorber and with drag-line by support rocking arm and brake handle are connected, and brake disc is contained between two brake plates.In order to prevent that effectively dust from entering in brake clamp 1 body, can be provided with dust boot 3 on the periphery of piston 2.
When the needs glancing impact, the pulling handle, by drag-line rocking arm is moved in the direction of the clock, ball cover screw rod rotates simultaneously with rocking arm, ball rolls along the inclined-plane in " V " type ball grooves and the ball cover does not rotate, cause ball cover screw rod generation longitudinal travel to travel forward to promote threaded guide rod, and the spring in the compression spring seat, make its compressive deformation.Adjust swivel nut and piston thereby the axial force of threaded guide rod and longitudinal travel pass to, make piston advances forward that brake plate is compressed brake disc and realize motorcycle brake.Rectangular seal distortion simultaneously also is absorbed in above-mentioned " chamfering structure " to hold piston tightly.When brake off, handle unclamps, under the metamorphosis of spring force, by threaded guide rod compressing ball cover screw rod, make ball along " V " type ball grooves inclined-plane axial motion and the moment that rotates, rotate counterclockwise with the drive rocking arm and realize resetting, swivel nut is adjusted in threaded guide rod drive simultaneously and piston moves backward, make brake plate and brake disc separate brake off, thereby motor bike recover normal operation.
When brake plate weares and teares the gap increase that is caused, utilize the forward and reverse longitudinal travel difference that is produced that moves of piston to realize the automatic compensation abrasion loss, to eliminate the gap.The forward and reverse longitudinal travel difference reason that is produced that moves of piston is: (1) realizes glancing impact when piston advances forward compresses brake plate, and piston can be subjected to the axial thrust F of threaded guide rod, also is subjected to the axial friction F of rectangular seal distortion back to it
1, this friction force F
1On the helical surface of adjusting swivel nut, can produce component F backward along the inclined-plane
1XProduce along the trend that rises on the inclined-plane so that adjust swivel nut.But because this moment, screw motion was the contact of zigzag inclined-plane, the friction drag F of its generation
1X' and F
1XDirection is opposite, has hindered the adjustment swivel nut along rising on the inclined-plane.So the longitudinal travel amount of retreating Δ S that piston produces under the effect of these friction force
Move backVery little, approach zero.The actual displacement S that advances of piston
Advance=S
Spiral shell--Δ S
Move back(S wherein
Spiral shellBe the distance that threaded guide rod advances, Δ S
Move backThe longitudinal travel amount of retreating that under the effect of above-mentioned friction force, produces for piston).(2) when piston backward during the motion brake off, piston can be subjected to the axial tension F ' of threaded guide rod, also is subjected to the axial friction F of rectangular seal distortion back to it
2, this friction force F
2On the helical surface of adjusting swivel nut, can produce component F forward along the inclined-plane
2XProduce along the inclined-plane downward trend so that adjust swivel nut.But because this moment, screw motion was zigzag plane contact, the friction drag F of its generation
2X' and F
2XDirection is opposite and less than F
2X, thereby the adjustment swivel nut has produced along the inclined-plane descending motion.Therefore piston has moved back displacement less under the effect of these friction force.The actual displacement S that retreats of piston
Move back=S
Spiral shell'--Δ S
Before(S wherein
Spiral shellBe the distance that threaded guide rod retreats, Δ S
Move backThe longitudinal travel advance amount that under the effect of above-mentioned friction force, produces for piston).In addition, again since when the piston return rectangular seal to the axial friction F of piston
2Axial friction F when advancing
1In sum, Δ S
BeforeGreater than Δ S
Move backThereby, S
AdvanceGreater than S
Move back, the forward and reverse longitudinal travel difference Δ S that is produced that moves of piston (is S
Advance--S
Move back) greater than zero, therefore realized the automatic compensation abrasion loss, to eliminate the gap.(3) when between brake plate and the piston during no gap, brake plate to the resistance limits of piston the displacement of piston, automatic compensation does not take place this moment.
Claims (2)
1, a kind of mechanical caliper brake, comprise brake clamp (1), rocking arm (16), drag-line (24), brake plate (27), it is characterized in that: the installation ball overlaps screw rod (11) and links to each other with rocking arm (16) in brake clamp (1) body, ball cover screw rod (11) is locked with jam nut (15), on ball cover screw rod (11), ball cover (12) and ball (10) are housed, described ball cover screw rod (11) is provided with " V " type ball grooves (13), and ball (10) can roll along the inclined-plane therein; Ball cover screw rod (11) links to each other with threaded guide rod (18) by thrust slide bearing (9), spring socket sleeve (6) and spring (7) are equipped with in threaded guide rod (18) limit, threaded guide rod (18) links to each other with adjustment swivel nut (23) again, and threaded guide rod (18) and the connecting thread of adjusting between the swivel nut (23) are four scroll saw profile of tooth motion threads; Adjust swivel nut (23) and link to each other with piston (2) by end face thrust bearing (22), described piston (2) contacts with brake plate (27); Rectangular seal (4) is housed, and the front end of the rectangular seal ring recess in brake clamp (1) body has chamfering structure on the periphery of piston (2).
2, mechanical caliper brake as claimed in claim 1 is characterized in that: dust boot (3) is set on the periphery of described piston (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02280313 CN2578219Y (en) | 2002-11-16 | 2002-11-16 | Mechanical jaw-type brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02280313 CN2578219Y (en) | 2002-11-16 | 2002-11-16 | Mechanical jaw-type brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2578219Y true CN2578219Y (en) | 2003-10-08 |
Family
ID=33743096
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02280313 Expired - Lifetime CN2578219Y (en) | 2002-11-16 | 2002-11-16 | Mechanical jaw-type brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2578219Y (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101273213B (en) * | 2005-09-27 | 2010-08-11 | 卢卡斯汽车股份有限公司 | Vehicle brake |
| CN102556018A (en) * | 2012-03-02 | 2012-07-11 | 山东博士乐液压有限公司 | Caliper disc type parking brake for loading machine with multiple-threaded screw |
| CN103629277A (en) * | 2013-12-10 | 2014-03-12 | 重庆长安汽车股份有限公司 | Connecting structure of parking brake inhaul cable and rocker arm |
| CN104925206A (en) * | 2015-06-23 | 2015-09-23 | 宁波彰星车辆有限公司 | Oil leakage-preventing oil pressure disc brake |
| CN107010158A (en) * | 2017-03-17 | 2017-08-04 | 林海 | The double acting safety type bicycle brake caliper of split |
| EP3940257A1 (en) * | 2020-07-17 | 2022-01-19 | Chih-Hsien Liao | Brake caliper device having automatic pad wear compensation mechanism |
-
2002
- 2002-11-16 CN CN 02280313 patent/CN2578219Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101273213B (en) * | 2005-09-27 | 2010-08-11 | 卢卡斯汽车股份有限公司 | Vehicle brake |
| CN102556018A (en) * | 2012-03-02 | 2012-07-11 | 山东博士乐液压有限公司 | Caliper disc type parking brake for loading machine with multiple-threaded screw |
| CN103629277A (en) * | 2013-12-10 | 2014-03-12 | 重庆长安汽车股份有限公司 | Connecting structure of parking brake inhaul cable and rocker arm |
| CN104925206A (en) * | 2015-06-23 | 2015-09-23 | 宁波彰星车辆有限公司 | Oil leakage-preventing oil pressure disc brake |
| CN107010158A (en) * | 2017-03-17 | 2017-08-04 | 林海 | The double acting safety type bicycle brake caliper of split |
| EP3940257A1 (en) * | 2020-07-17 | 2022-01-19 | Chih-Hsien Liao | Brake caliper device having automatic pad wear compensation mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: WENZHOU LIBANG CO., LTD. Free format text: FORMER OWNER: LIBANG ENTERPRISE CO LTD, RUIAN CITY Effective date: 20120106 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120106 Address after: 325204 Zhejiang province Ruian City Tangxia Town Garden Industrial Zone Wenzhou Libang Co Ltd Patentee after: Wenzhou Libang Enterprise Co.,Ltd. Address before: 325204 Zhejiang province Ruian City Tangxia Town Han Tian Industrial Zone Zhenxing Road No. 50 Patentee before: Libang Enterprise Co Ltd, Ruian City |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20121116 Granted publication date: 20031008 |