CN203214727U - Automatic compensation device of brake - Google Patents
Automatic compensation device of brake Download PDFInfo
- Publication number
- CN203214727U CN203214727U CN 201320207215 CN201320207215U CN203214727U CN 203214727 U CN203214727 U CN 203214727U CN 201320207215 CN201320207215 CN 201320207215 CN 201320207215 U CN201320207215 U CN 201320207215U CN 203214727 U CN203214727 U CN 203214727U
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- CN
- China
- Prior art keywords
- ratchet
- tooth
- brake
- threaded sleeve
- break
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model discloses an automatic compensation device of a brake. The automatic compensation device comprises a hinge shaft hinged on a lever of the brake; a connecting shaft is perpendicularly arranged on the hinge shaft; the connecting shaft is in clearance fit with the hinge shaft; threaded sleeves, namely a first threaded sleeve and a second threaded sleeve, are arranged at both ends of the connecting shaft; internal threads matched with a pull rod of the brake are formed in the first threaded sleeve; the end part of the second threaded sleeve is fixedly sleeved with ratchet movable teeth; a threaded sleeve is arranged on a lever corresponding to the ratchet movable teeth; a reset spring is arranged in the threaded sleeve; ratchet fixed teeth are sleeved with the threaded sleeve; a limiting table is arranged at the top part of the threaded sleeve so as to prevent the ratchet fixed teeth from prolapsing out of the threaded sleeve; and the ratchet fixed teeth are matched with the ratchet movable teeth. The automatic compensation device is used for adjusting an abrasion gap of a friction block after abrasion, so that the brake can constantly maintain a normal operation condition.
Description
Technical field
The utility model belongs to the break field, relates in particular to the automatic compensator after a kind of brake rim weares and teares.
Background technique
Along with the continuous development of society, break is applied to each field of every profession and trade more and more extensively, metallurgical mine, lifting transportation, coal mine machinery, harbour head of the horse, petrochemical industry, engineering machinery etc.; Break has very important meaning as safety component to whole application.
Current brake application present situation: the necessary manual tune of the reservation stroke of pusher in (1) break; (2) the necessary manual tune of brake rim positioning device in the break; (3) the necessary manual tune of the positioning device of two arms in the break; (4) break just emergency braking immediately when the pusher fault is without any buffering;
Concrete operating principle: a, break are in normal using process, friction plate is in continuous wearing and tearing, the reservation stroke of pusher constantly reduces in the device processed, because design principle, when pusher reservation stroke was zero, spring force just can not act on the Brake drum by each mechanism, cause the break braking failure, so must when pusher is reserved stroke and do not reached zero, must carry out manual tune, to guarantee break braking effect be arranged; B, behind the intact friction disc wear gap of artificial compensation, break two brake arms can shrink to Brake drum, because the brake rim deadweight can be downward-sloping, cause the floating Brake drum that pastes in brake rim upper end, so the time also must carry out the brake rim location and regulate; C, along with break two arms shrink to Brake drum, the brake arm positioning device also must follow-up, otherwise can cause two brake arm opening clearance unequal, causes the floating Brake drum that pastes of the little side brake rim of opening clearance.
The model utility content
The purpose of this utility model is to overcome above-mentioned deficiency a kind of break automatic compensator is provided, and has solved the trouble of the regular manual tune of break, makes the O﹠M of break very simple.
For achieving the above object, the utility model is by the following technical solutions:
A kind of break automatic compensator, comprise the hinging shaft that is hinged on the brake level, be vertically installed with coupling shaft at hinging shaft, coupling shaft and hinging shaft are Spielpassung, two ends at coupling shaft are provided with thread bush, i.e. first thread bush and second thread bush, be provided with the internal thread that matches with the break pull bar in first thread bush, the second thread bush end fixed cover is provided with the moving tooth of ratchet, also is provided with swivel nut on the lever of the moving tooth correspondence of ratchet, is provided with Returnning spring in the swivel nut, ratchet is decided tooth and is set in the swivel nut, and the swivel nut top is provided with limit dais, prevents that ratchet from deciding tooth and deviating from swivel nut, and the moving tooth of ratchet is decided tooth with ratchet and matched.
Above-mentioned break automatic compensator, described hinging shaft are the step axles.
Above-mentioned break automatic compensator, the moving tooth ends of ratchet is fastened on the coupling shaft by locking nut.
Adopt technique scheme, the utility model has following advantage: the utility model is installed on the break, the moving tooth of ratchet and ratchet are decided the wearing clearance after the tooth automatic compensator is regulated the wearing piece wearing and tearing, guarantee that brake bush is in normal operating condition all the time.Combine the performance function by the permanent attitude pusher of low temperature, the moving tooth of ratchet and ratchet are decided the tooth automatic compensator, guarantee that this break automatic compensator remains the break normal working.Solved the trouble of the regular manual tune of break, made the O﹠M of break very simple.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is that the P of Fig. 1 is to view.
Fig. 3 is that the A of Fig. 2 is to view.
Fig. 4 is the use state reference map after the utility model is installed on the break.
Fig. 5 is the structural representation that normal brake application state bottom ratchet wheel is decided tooth and the moving tooth of ratchet.
Fig. 6 is that proper solution is removed the structural representation that the braking state bottom ratchet wheel is decided tooth and the moving tooth of ratchet.
Fig. 7 is the structural representation that wearing and tearing back braking state bottom ratchet wheel is decided tooth and the moving tooth of ratchet.
Embodiment
As Fig. 1, Fig. 2 and a kind of break automatic compensator shown in Figure 3, comprise the hinging shaft 19 that is hinged on the brake level 8, be vertically installed with coupling shaft 21 at hinging shaft 19, coupling shaft and hinging shaft are Spielpassung, two ends at coupling shaft are provided with thread bush, i.e. first thread bush 17 and second thread bush 18, be provided with the internal thread that matches with break pull bar 5 in first thread bush 17, second thread bush, 18 end fixed covers are provided with the moving tooth 15 of ratchet, on the lever of moving tooth 15 correspondences of ratchet, also be provided with swivel nut 23, be provided with Returnning spring 24 in the swivel nut 23, ratchet is decided tooth 16 and is set in the swivel nut 23, and swivel nut 23 tops are provided with limit dais, prevent that ratchet from deciding tooth 16 and deviating from swivel nut, and the moving tooth 15 of ratchet is decided tooth 16 with ratchet and matched.Hinging shaft 19 of the present utility model is step axles, and moving tooth 15 ends of ratchet are fastened on the coupling shaft by locking nut.
Working procedure of the present utility model is as follows: the utility model is installed on the lever of break, first thread bush is connected installation with the break pull bar.
During proper functioning, the ratchet of automatic compensator is decided tooth and is moved at two between cog of the moving tooth of ratchet, and namely the space width of the moving tooth of ratchet is consistent to the spacing between Brake drum with the interior brake shoe of brake rim.Under the normal operating condition, as shown in Figure 3, ratchet is decided tooth and is arranged on moving two the tooth neutral positions of tooth of ratchet; During braking, as shown in Figure 5, ratchet is decided tooth at the crown A place of the moving tooth of ratchet; When brake off, as shown in Figure 6, ratchet is decided tooth at the tooth root B place of the moving same tooth of tooth of ratchet; No matter be braking or releasing, it is mobile in the outer rim of a tooth all the time that ratchet is decided tooth, and the moving tooth of gear is just along with the pull bar upper and lower displacement, and self does not rotate.When the brake block abrasion in the brake rim, because design principle, the pusher push rod is bigger than drop under the normal state, just can play braking effect.Ratchet is decided distance that tooth moves with respect to the moving tooth of ratchet just greater than normal state like this.When namely braking, as shown in Figure 7, ratchet is decided tooth enters into the moving tooth of next ratchet under the effect of Returnning spring tooth root C place; During brake off, ratchet is decided tooth along with lever is upwards moving, and the moving tooth of ratchet is along with pull bar is moving downwards, and ratchet is decided tooth like this changes with regard to the moving tooth spiral of handsetting gear, the amplitude of rotation matches with the first thread bush internal thread spacing, just in time makes pull bar consistent with wear extent with the first thread bush displacement amount.
When the friction disc wear of brake rim, when braking, because design principle, the pusher push rod is to the whereabouts, and automatic compensator 7 moves downward with respect to pull bar, and namely ratchet decide tooth 16 and is moved around the moving tooth 15 of ratchet.When pusher is opened, the pusher push rod drives automatic compensator 7 when rising and rises, ratchet decide tooth 16 and will be broadcast the moving tooth 15 of ratchet and rotate and make second brake arm to the close wearing clearance that remedies of Brake drum this moment, reach the purpose of automatic compensation, make this break remain the break normal working.
Claims (3)
1. break automatic compensator, it is characterized in that: comprise the hinging shaft (19) that is hinged on the brake level (8), be vertically installed with coupling shaft (21) at hinging shaft (19), coupling shaft and hinging shaft are Spielpassung, two ends at coupling shaft are provided with thread bush, i.e. first thread bush (17) and second thread bush (18), first thread bush is provided with the internal thread that matches with the break pull bar in (17), second thread bush (18) end fixed cover is provided with the moving tooth (15) of ratchet, on the corresponding lever of the moving tooth (15) of ratchet, also be provided with swivel nut (23), be provided with Returnning spring (24) in the swivel nut (23), ratchet is decided tooth (16) and is set in the swivel nut (23), and swivel nut (23) top is provided with limit dais, prevent that ratchet from deciding tooth (16) and deviating from swivel nut, ratchet moves tooth (15) to be decided tooth (16) with ratchet and matches.
2. break automatic compensator according to claim 1, it is characterized in that: described hinging shaft (19) is the step axle.
3. break automatic compensator according to claim 1, it is characterized in that: ratchet moves tooth (15) end and is fastened on the coupling shaft by locking nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207215 CN203214727U (en) | 2013-04-23 | 2013-04-23 | Automatic compensation device of brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320207215 CN203214727U (en) | 2013-04-23 | 2013-04-23 | Automatic compensation device of brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203214727U true CN203214727U (en) | 2013-09-25 |
Family
ID=49204269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320207215 Withdrawn - After Issue CN203214727U (en) | 2013-04-23 | 2013-04-23 | Automatic compensation device of brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203214727U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195848A (en) * | 2013-04-23 | 2013-07-10 | 焦作市制动器有限公司 | Automatic compensation device of brake |
| CN109973563A (en) * | 2019-04-10 | 2019-07-05 | 马科 | A kind of self-adjusting drum brake |
-
2013
- 2013-04-23 CN CN 201320207215 patent/CN203214727U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103195848A (en) * | 2013-04-23 | 2013-07-10 | 焦作市制动器有限公司 | Automatic compensation device of brake |
| CN103195848B (en) * | 2013-04-23 | 2015-08-12 | 焦作市制动器有限公司 | Automatic compensation device of brake |
| CN109973563A (en) * | 2019-04-10 | 2019-07-05 | 马科 | A kind of self-adjusting drum brake |
| CN109973563B (en) * | 2019-04-10 | 2020-10-27 | 东阳市鑫联工业设计有限公司 | Self-adjusting drum brake |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130925 Effective date of abandoning: 20150812 |
|
| RGAV | Abandon patent right to avoid regrant |