CN204226501U - Drum brake - Google Patents
Drum brake Download PDFInfo
- Publication number
- CN204226501U CN204226501U CN201420708041.1U CN201420708041U CN204226501U CN 204226501 U CN204226501 U CN 204226501U CN 201420708041 U CN201420708041 U CN 201420708041U CN 204226501 U CN204226501 U CN 204226501U
- Authority
- CN
- China
- Prior art keywords
- extension spring
- hoof
- hoof block
- base plate
- adjusting nut
- 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
Links
Abstract
The utility model discloses a kind of drum brake, comprise base plate, base plate is connected with left/right hoof block, hoof block is crescent shape and middle part is provided with pressure hoof pull bar, and pressure hoof pull bar is fixedly connected with base plate 1; Hoof block one end is connected with master cylinder, and the other end is connected with compensation mechanism; Hoof block and master cylinder are connected with extension spring one, and compensation mechanism comprises extension spring two, and hoof block connects extension spring two away from one end of master cylinder, and the elasticity coefficient of extension spring two is greater than extension spring one; Compensation mechanism also comprises adjustment bolt, coordinates the adjusting nut of adjustment bolt to be provided with moving tooth; The corresponding adjusting nut position of base plate is provided with the pulling hole for stirring adjusting nut.The beneficial effect of this programme can be learnt according to describing of such scheme, and structure is simple, reasonable in design, easy to adjust, controls reliable.
Description
Technical field
The utility model relates to a kind of break, particularly relates to a kind of drum brake.
Background technique
The friction facing of drum brake in use can constantly wear and tear, and the gap between friction facing and brake drum is constantly expanded, and can increase the lag time of braking mechanism operation, affect the Security of vehicle drive.In order to make the gap between friction facing and brake drum remain in OK range, people devise the compensation mechanism of such as ratchet bolt mechanism or worm-and-wheel gear.But for tricycle, these compensation mechanism complicated structures, add cost and the maintenance difficulty of break.
Model utility content
The utility model is for the deficiency existing for prior art, and it is simple, reasonable in design to provide a kind of structure, easy to adjust, controls reliable drum brake.
To achieve these goals, the utility model provides a kind of drum brake, comprise base plate, described base plate is connected with left/right hoof block, described hoof block is crescent shape and middle part is provided with through hole, through hole in the middle part of described hoof block is connected with pressure hoof pull bar, and described pressure hoof pull bar is fixedly connected with described base plate; Described hoof block one end is connected with master cylinder, and the other end is connected with compensation mechanism; Described hoof block and master cylinder are connected with extension spring one, and described compensation mechanism comprises extension spring two, and described hoof block connects described extension spring two away from one end of described master cylinder, and the elasticity coefficient of described extension spring two is greater than described extension spring one; Described compensation mechanism also comprises adjusting seat, and described adjusting seat is provided with smooth inner bore and is connected with adjustment bolt by described endoporus, and described adjusting seat end is provided with the adjusting nut coordinating described adjustment bolt, and described adjusting nut is provided with moving tooth; The corresponding described adjusting nut position of described base plate is provided with the pulling hole for stirring described adjusting nut.
Wherein, angle is provided with between described adjusting seat two ends.
The top of described adjustment bolt is provided with the groove for connecting described hoof block.
The compensating action of the compensation mechanism of this programme from the above, is be greater than extension spring one by the elasticity coefficient of extension spring two to realize, and extension spring two drives hoof block to rotate around pressure hoof pull bar, and the one end making hoof block connect master cylinder is close to brake drum.If but leave extension spring two contraction, then do not need master cylinder to apply strength, this programme also can be in braking state always, so, need adjustment bolt and adjusting nut.
During use, driver puts in pulling hole switch adjusting nut with finger, adjusting nut drives adjustment bolt to shrink to the smooth inner bore of adjusting seat, extension spring two pulls hoof block to rotate around pressure hoof pull bar, between the doigte adjustment bolt and hoof block of driver during distress resolves, represent that hoof block is fitted with brake drum near one end of master cylinder, driver again by adjusting nut clawback a bit afterwards, the pulling force making adjustment bolt overcome extension spring two promotes hoof block and rotates, and makes hoof block and brake drum depart from small distance.
The beneficial effect of this programme can be learnt according to describing of such scheme, and structure is simple, reasonable in design, easy to adjust, controls reliable.In the process that tricycle travels, due to reasons such as vibrations, the slow displacement of adjustment bolt, because the pulling force effect of extension spring two, only can carry out to adjustment endoporus direction; That is, the brake that the jolting of vehicle only can make this programme is more and more tighter, and can not make more and more pine, thus avoids brake failure; Simultaneously due in the process of moving, brake tension, driver is sentient, so driver can adjust, so this programme is completely controlled because vehicle jolts on its impact caused when feeling brake tension completely.Be provided with angle between adjusting seat two ends and be subject to excessive radial force to avoid adjustment bolt.The top of adjustment bolt is provided with the groove for connecting hoof block, prevents adjustment screws on the one hand, facilitates the cooperation with hoof block on the one hand.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the rear view of Fig. 1.
In figure, 1, base plate; 2, hoof block; 3, hoof pull bar is pressed; 4, master cylinder; 5, extension spring one; 6, extension spring two; 7, adjusting seat; 8, bolt is adjusted; 9, adjusting nut; 10, pulling hole.
Embodiment
For the technical characterstic of this programme can be clearly demonstrated, below by embodiment, this programme is set forth.
As shown in Figure 1, 2, the utility model is a kind of drum brake, comprises base plate 1, base plate 1 is connected with left/right hoof block 2, hoof block 2 is in crescent shape and middle part is provided with through hole, and the through hole in the middle part of hoof block 2 is connected with pressure hoof pull bar 3, and pressure hoof pull bar 3 is fixedly connected with base plate 1; Hoof block 2 one end is connected with master cylinder 4, and the other end is connected with compensation mechanism; Hoof block 2 and master cylinder 4 are connected with extension spring 1, and compensation mechanism comprises extension spring 26, and hoof block 2 connects extension spring 26 away from one end of master cylinder 4, and the elasticity coefficient of extension spring 26 is greater than extension spring 1; Compensation mechanism also comprises adjusting seat 7, adjusting seat 7 is provided with smooth inner bore and is connected with adjustment bolt 8 by endoporus, the top of adjustment bolt 8 is provided with the groove for connecting hoof block 2, and adjusting seat 7 end is provided with the adjusting nut 9 coordinating adjustment bolt 8, and adjusting nut 9 is provided with moving tooth; Base plate 1 corresponding adjusting nut 9 position is provided with the pulling hole 10 for stirring adjusting nut 9.Adjusting seat 7 is provided with angle between two ends, to reduce the radial force of adjustment bolt 8 as far as possible.
The compensating action of the compensation mechanism of this programme, from the above, be greater than extension spring 1 by the elasticity coefficient of extension spring 26 to realize, extension spring 26 drives hoof block 2 to rotate around pressure hoof pull bar 3, and the one end making hoof block 2 connect master cylinder 4 is close to brake drum.If but extension spring 26 of leaving is shunk, then do not need master cylinder 4 to apply strength, this programme also can be in braking state always, so, need adjustment bolt 8 and adjusting nut 9.
During use, driver puts in pulling hole switch adjusting nut 9 with finger, adjusting nut 9 drives adjustment bolt 8 to shrink to the smooth inner bore of adjusting seat 7, extension spring 26 pulls hoof block 2 to rotate around pressure hoof pull bar 3, between the doigte adjustment bolt 8 and hoof block 2 of driver during distress resolves, represent that hoof block 2 is fitted with brake drum near one end of master cylinder 4, driver again by adjusting nut 9 clawback a bit afterwards, the pulling force making adjustment bolt 8 overcome extension spring 26 promotes hoof block 2 and rotates, and makes hoof block 2 and brake drum depart from small distance.
The utility model can pass through without the technical characteristics described or adopt existing techniques in realizing; do not repeat them here; certainly; above-mentioned explanation is not to restriction of the present utility model; the utility model is also not limited in above-mentioned citing; the change that those skilled in the art make in essential scope of the present utility model, remodeling, interpolation or replacement, also should belong to protection domain of the present utility model.
Claims (3)
1. a drum brake, comprises base plate, described base plate is connected with left/right hoof block, and described hoof block is crescent shape and middle part is provided with through hole, and the through hole in the middle part of described hoof block is connected with pressure hoof pull bar, and described pressure hoof pull bar is fixedly connected with described base plate; Described hoof block one end is connected with master cylinder, and the other end is connected with compensation mechanism; Described hoof block and master cylinder are connected with extension spring one, it is characterized in that, described compensation mechanism comprises extension spring two, and described hoof block connects described extension spring two away from one end of described master cylinder, and the elasticity coefficient of described extension spring two is greater than described extension spring one; Described compensation mechanism also comprises adjusting seat, and described adjusting seat is provided with smooth inner bore and is connected with adjustment bolt by described endoporus, and described adjusting seat end is provided with the adjusting nut coordinating described adjustment bolt, and described adjusting nut is provided with moving tooth; The corresponding described adjusting nut position of described base plate is provided with the pulling hole for stirring described adjusting nut.
2. drum brake according to claim 1, is characterized in that, is provided with angle between described adjusting seat two ends.
3. drum brake according to claim 1 and 2, is characterized in that, the top of described adjustment bolt is provided with the groove for connecting described hoof block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420708041.1U CN204226501U (en) | 2014-11-21 | 2014-11-21 | Drum brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420708041.1U CN204226501U (en) | 2014-11-21 | 2014-11-21 | Drum brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204226501U true CN204226501U (en) | 2015-03-25 |
Family
ID=52924602
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420708041.1U Expired - Fee Related CN204226501U (en) | 2014-11-21 | 2014-11-21 | Drum brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204226501U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686022A (en) * | 2019-09-30 | 2020-01-14 | 萧县威辰机电工程设备有限公司 | Braking control device for generator |
-
2014
- 2014-11-21 CN CN201420708041.1U patent/CN204226501U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110686022A (en) * | 2019-09-30 | 2020-01-14 | 萧县威辰机电工程设备有限公司 | Braking control device for generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150325 Termination date: 20151121 |
|
| EXPY | Termination of patent right or utility model |