CN102465986A - Automatic compensating device for abrasion of braking pad of high-speed shaft-disc-type brake - Google Patents
Automatic compensating device for abrasion of braking pad of high-speed shaft-disc-type brake Download PDFInfo
- Publication number
- CN102465986A CN102465986A CN2010105437789A CN201010543778A CN102465986A CN 102465986 A CN102465986 A CN 102465986A CN 2010105437789 A CN2010105437789 A CN 2010105437789A CN 201010543778 A CN201010543778 A CN 201010543778A CN 102465986 A CN102465986 A CN 102465986A
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- China
- Prior art keywords
- compensation
- braking
- nut
- screw rod
- speed shaft
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- 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.)
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Abstract
The invention discloses an automatic compensating device for abrasion of a braking pad of a high-speed shaft-disc-type brake, wherein the automatic compensating device comprises a compensating nut and a compensating screw stem; the compensating nut and the compensating screw stem form a sawtooth-shaped threaded pair with a one-way self-locking function. Compared with the prior art, the automatic compensating device can automatically compensate the abraded braking pad, and guarantees a constant clearance between the abraded braking pad and a brake disc, and accordingly a constant braking force of the brake is guaranteed. Adjustment quantity of the device is irrelevant to braking times, and compensation can be completed in one-step braking regardless of the size of the abrasion clearance. Besides, the automatic compensating device is simple in structure, convenient in use and free of repair, and is used for lowering the repair cost, increasing production efficiency and reducing production cost.
Description
Technical field
The present invention relates to a kind of braking device, relate to a kind of high speed shaft disk type braker brake pad wear automatic compensator that is used on the wind power plant specifically.
Background technique
The break of using on the wind power plant is made up of body, piston, gland, spring, push rod etc.The position that push rod is corresponding is provided with brake rim; In the break braking process, because the wearing and tearing of brake rim cause spring travel to strengthen; The braking force of brake disc is reduced; Thereby when braking brake rim can not compress brake disc, can not well brake, phenomenon possibly appear braking when serious etc.Break must be equipped the brake rim wear compensation device.What general break was installed is the manual compensation device, adds to the difficulties to maintenance maintenance like this.The automatic compensator that the part break is installed is based on the ratchet principle, and the stroke of each compensation is certain, if big gap then can't in time compensate.
Summary of the invention
The object of the invention just is to overcome above-mentioned deficiency a kind of high speed shaft disk type braker brake pad wear automatic compensator is provided; After the brake rim wearing and tearing; The present invention remains unchanged the gap of brake rim and brake disc basically; Make braking force keep invariable, and all compensation completion in the single compensation of no matter large or small gap.
The object of the invention can be realized through following technological scheme:
A kind of high speed shaft disk type braker brake pad wear automatic compensator comprises compensation nut and compensation screw rod, and it is secondary that compensation nut and compensation screw rod constitute buttress thread form, has the unidirectional self-lock function.
Above-mentioned high speed shaft disk type braker brake pad wear automatic compensator, the outside thread of said compensation screw rod is an inclined ladder shape tooth, the internal thread of internal thread for matching with it of compensation nut.
Above-mentioned high speed shaft disk type braker brake pad wear automatic compensator, the outside thread of said compensation screw rod is the oblique triangle tooth, the internal thread of internal thread for matching with it of compensation nut.
Adopt technique scheme, the present invention has following advantage: repay nut and constitute the buttress thread form pair with the compensation screw rod, because the buttress thread form tooth is used to bear unidirectional axial force, have the unidirectional self-lock function.Dynamic action is on the compensation screw rod on right side, on the brake drag effect left side compensation nut.During braking, piston is under the effect of disc spring force, to left movement; The secondary self-locking of buttress thread form on this direction, relative slippage can not take place in both, acts on force urges compensation screw rod left on the piston; The power of compensation on the screw rod is directly passed to compensation nut, push rod, jump ring hoop and moves left, specified move back apart under, jump ring ring, pad, gland are adjacent to; Push rod compresses brake rim and brake disc simultaneously, produces braking force.If brake rim is experience wear, push rod continues to be moved to the left, until brake rim and brake disc are compressed generation braking force.At this moment, the jump ring ring is stopped by gland to move.Because the jump ring ring has elasticity, on push rod, slides.When declutching, overcome spring force in the hydraulic pressure, the piston band compensates screw rod, compensation nut, push rod, jump ring hoop automatically and moves right; Reach specified move back apart from the time, the jump ring ring is adjacent to body can not be continued to move, because the compensation screw rod cooperates with the special thread that compensates nut; This moment, push rod was no longer mobile, guaranteed the specified distance of moving back, the compelled rotation of compensation nut; The compensation screw rod continues to move right, and reaches desired location until piston, and compensating movement is finished.
Compared with prior art, the present invention can compensate the brake rim of wearing and tearing automatically, and guaranteeing has constant gap between itself and the brake disc, thereby guarantees that break has constant braking force.This device adjustment amount is irrelevant with the braking number of times, and is much no matter wearing clearance has, and all can once accomplish compensation in the braking.And the present invention is simple in structure, and is easy to use, need not keep in repair, and reduced maintenance cost, improved manufacturing efficiency and reduced cost of production.
Description of drawings
Fig. 1 is high speed shaft disk type braker partial structurtes schematic representation.
Fig. 2 is a structural representation of the present invention.
Fig. 3 is second kind of structural representation of the present invention.
Embodiment
Like Fig. 1, Fig. 2 and a kind of high speed shaft disk type braker brake pad wear automatic compensator shown in Figure 3, comprise compensation nut 2 and compensation screw rod 1, it is secondary that compensation nut 2 and compensation screw rod 1 constitute buttress thread form, has the unidirectional self-lock function.
As shown in Figure 2, the outside thread of said compensation screw rod is an inclined ladder shape tooth 3, the internal thread of internal thread for matching with it of compensation nut.
As shown in Figure 3, the outside thread of said compensation screw rod is an oblique triangle tooth 4, the internal thread of internal thread for matching with it of compensation nut.
Working principle: the present invention is made up of the special thread auxiliary connection that possesses the unidirectional self-lock function.Through using different tooth form angles, guarantee that screw pair has different equivalent coefficient of friction on the both direction of the left and right sides, obtain two equivalent friction angle Φ thus
1And Φ
2, through the design of double thread lift angle, as long as make lead angle be in two equivalent friction angle Φ
1And Φ
2Between, just can guarantee that self-locking appears in screw pair on single direction, guarantee that the braking process screw pair does not have slide relative, and not self-locking of screw pair on another direction just can make the screw pair slide relative as long as give less power, realizes compensating movement.
The compensation screw rod moves to left, and this direction is the self-locking direction, and the then secondary self-locking of buttress thread form is after oil pressure dump; Break resets, and the compensation screw rod moves to right, and this not self-locking of direction screw pair is if exist wearing and tearing; Then screw pair can be realized relative slippage easily, and the compensation nut is screwed out, and realizes compensation.The compensation screw rod guarantees that the braking process screw pair does not have slide relative, and not self-locking of screw pair on another direction just can make the screw pair slide relative as long as give less power, realizes compensating movement.
Working procedure of the present invention is following: during braking; Piston 5 is under the effect of disc spring force; Promotion compensation screw rod 1, compensation nut 2, push rod 6, jump ring ring 9 are moved to the left, and move back under the distance specified, and jump ring ring 9, pad 8, gland 7 are adjacent to; Push rod 6 compresses brake rim and brake disc simultaneously, produces braking force.
If brake rim is experience wear, push rod 6 continues to be moved to the left, until brake rim and brake disc are compressed generation braking force.At this moment, jump ring ring 9 is stopped by gland 7 to move.Because the jump ring ring has elasticity, on push rod, slides.When declutching, overcome spring force in the hydraulic pressure, piston 5 bands compensation screw rod 1, compensation nut 2, push rod 6, jump ring ring 9 automatically move right; Reach specified move back apart from the time, jump ring ring 9 is adjacent to body can not be continued to move, because the compensation screw rod cooperates with the special thread that compensates nut; This moment, push rod 6 was no longer mobile, guaranteed the specified distance of moving back, the 2 compelled rotations of compensation nut; Compensation screw rod 1 continues to move right, and reaches desired location until piston 5, and compensating movement is finished.
Claims (3)
1. a high speed shaft disk type braker brake pad wear automatic compensator is characterized in that: comprise the compensation nut and compensate screw rod, compensate nut and constitute the buttress thread form pair with the compensation screw rod to have the unidirectional self-lock function.
2. high speed shaft disk type braker brake pad wear automatic compensator according to claim 1 is characterized in that: the outside thread of said compensation screw rod is an inclined ladder shape tooth, the internal thread of internal thread for matching with it of compensation nut.
3. high speed shaft disk type braker brake pad wear automatic compensator according to claim 1, it is characterized in that: the outside thread of said compensation screw rod is the oblique triangle tooth, the internal thread of internal thread for matching with it of compensation nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105437789A CN102465986A (en) | 2010-11-15 | 2010-11-15 | Automatic compensating device for abrasion of braking pad of high-speed shaft-disc-type brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105437789A CN102465986A (en) | 2010-11-15 | 2010-11-15 | Automatic compensating device for abrasion of braking pad of high-speed shaft-disc-type brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102465986A true CN102465986A (en) | 2012-05-23 |
Family
ID=46069974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105437789A Pending CN102465986A (en) | 2010-11-15 | 2010-11-15 | Automatic compensating device for abrasion of braking pad of high-speed shaft-disc-type brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102465986A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594302A (en) * | 2021-01-18 | 2021-04-02 | 上海麦斌汽车用品有限公司 | Brake auxiliary device capable of always keeping maximum brake effect |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3811540A (en) * | 1971-10-11 | 1974-05-21 | Itt | Self-adjusting device for disc brakes |
| DE2526213A1 (en) * | 1975-06-12 | 1976-12-30 | Knorr Bremse Gmbh | Automatic brake wear adjuster - turns nut on application of brake but prevents turning on release of brake |
| GB2192033A (en) * | 1986-06-28 | 1987-12-31 | Teves Gmbh Alfred | Disc brake for motor vehicles |
| CN2732980Y (en) * | 2004-08-18 | 2005-10-12 | 天津钢管有限责任公司 | Sawtooth casing threaded connection structure |
| CN201884530U (en) * | 2010-11-15 | 2011-06-29 | 焦作市制动器有限公司 | Automatic compensating device for abrasion of braking pad of high-speed shaft disc type brake |
-
2010
- 2010-11-15 CN CN2010105437789A patent/CN102465986A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3811540A (en) * | 1971-10-11 | 1974-05-21 | Itt | Self-adjusting device for disc brakes |
| DE2526213A1 (en) * | 1975-06-12 | 1976-12-30 | Knorr Bremse Gmbh | Automatic brake wear adjuster - turns nut on application of brake but prevents turning on release of brake |
| GB2192033A (en) * | 1986-06-28 | 1987-12-31 | Teves Gmbh Alfred | Disc brake for motor vehicles |
| CN2732980Y (en) * | 2004-08-18 | 2005-10-12 | 天津钢管有限责任公司 | Sawtooth casing threaded connection structure |
| CN201884530U (en) * | 2010-11-15 | 2011-06-29 | 焦作市制动器有限公司 | Automatic compensating device for abrasion of braking pad of high-speed shaft disc type brake |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112594302A (en) * | 2021-01-18 | 2021-04-02 | 上海麦斌汽车用品有限公司 | Brake auxiliary device capable of always keeping maximum brake effect |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20120523 |