CN202953780U - Brake cylinder for winch - Google Patents
Brake cylinder for winch Download PDFInfo
- Publication number
- CN202953780U CN202953780U CN 201220522049 CN201220522049U CN202953780U CN 202953780 U CN202953780 U CN 202953780U CN 201220522049 CN201220522049 CN 201220522049 CN 201220522049 U CN201220522049 U CN 201220522049U CN 202953780 U CN202953780 U CN 202953780U
- Authority
- CN
- China
- Prior art keywords
- piston rod
- cylinder
- piston
- winch
- rod
- 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
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- Braking Arrangements (AREA)
Abstract
The utility model relates to a brake cylinder for a winch. The brake cylinder comprises a cylinder body and a piston rod and is characterized in that the piston rod has a double-ejector rod structure, wherein a piston is arranged in the middle of the piston rod; a reset spring is sleeved on the rod body of the piston rod on one side of the piston; an oil outlet is formed in the side wall of a cavity, which is not provided with the reset spring, of the cylinder body; and an exhaust opening is formed in the side wall of the cavity, which is provided with the reset spring, of the cylinder. When the cylinder is filled with oil, the piston rod is pushed to move, and braking of a winch barrel is cancelled; and after the oil is exhausted out of the cylinder, the piston rod automatically resets under the action of the reset spring, so that the winch barrel is fastened.
Description
Technical field
The utility model relates to a kind of winch brake cylinder, particularly a kind of winch brake cylinder with auto-lock function.
Background technology
Winch mainly applies to material lifting or flat the dragging of building, hydraulic engineering, forestry, mine, harbour etc.During the winch braking, by brake cylinder, drive drg to realize.Traditional brake cylinder is conventional hydraulic ram.Its shortcoming is: in the time of need to or cancelling braking to capstan drum braking, all need Hydraulic Station to provide pressure to realize, and when Hydraulic Station breaks down suddenly, may self-locking, there is certain potential safety hazard.
Summary of the invention
The technical problems to be solved in the utility model is to provide a kind of winch brake cylinder with auto-lock function.
For solving the problems of the technologies described above, the technical solution of the utility model is: a kind of winch brake cylinder, comprise cylinder body and piston rod, and its innovative point is: described piston rod is two rod structures, and piston is installed at the middle part of piston rod; Be set with retracing spring on the piston rod body of rod of described piston one side, and the cavity wall that described cylinder body is not installed retracing spring drives oil outlet into, the cavity wall that cylinder body the is installed retracing spring gas port that begins to rehearse.
Further, described retracing spring is comprised of the disk spring stack.
The utility model has the advantage of: when oil-filled in cylinder body, promote the braking of piston rod movement canceling capstan drum, discharge oil in cylinder body after, the locking capstan drum thereby piston rod automatically resets under the effect of retracing spring.
The accompanying drawing explanation
Fig. 1 is the utility model winch brake cylinder structural representation.
The specific embodiment
As shown in Figure 1, comprise cylinder body 1 and piston rod 2, this piston rod 2 is two rod structures, and piston 3 is installed at the middle part of piston rod 2.Be set with retracing spring on the piston rod body of rod of piston 3 one sides, retracing spring is comprised of disk spring 4 stacks.And the cavity wall that cylinder body 1 is not installed retracing spring drives oil outlet 5 into, the cavity wall that cylinder body 1 the is installed retracing spring gas port 6 that begins to rehearse.
Under normal condition, under the effect of retracing spring, the drg that piston rod 2 promotes on capstan drum is held the maintenance braking mode tightly; While cancelling braking, by Hydraulic Station, cylinder body 1 is carried out to fuel feeding, make piston rod 3 oppositely move the promotion drg and cancel braking; When Hydraulic Station breaks down, under action of reset spring, drg is held tightly automatically, avoids occurring safety misadventure.
Claims (2)
1. a winch brake cylinder, comprise cylinder body and piston rod, it is characterized in that: described piston rod is two rod structures, and piston is installed at the middle part of piston rod; Be set with retracing spring on the piston rod body of rod of described piston one side, and the cavity wall that described cylinder body is not installed retracing spring drives oil outlet into, the cavity wall that cylinder body the is installed retracing spring gas port that begins to rehearse.
2. winch brake cylinder according to claim 1 is characterized in that: described retracing spring is comprised of the disk spring stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220522049 CN202953780U (en) | 2012-10-12 | 2012-10-12 | Brake cylinder for winch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220522049 CN202953780U (en) | 2012-10-12 | 2012-10-12 | Brake cylinder for winch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202953780U true CN202953780U (en) | 2013-05-29 |
Family
ID=48459362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220522049 Expired - Fee Related CN202953780U (en) | 2012-10-12 | 2012-10-12 | Brake cylinder for winch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202953780U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887461A (en) * | 2012-10-12 | 2013-01-23 | 南通力威机械有限公司 | Winch braking cylinder |
-
2012
- 2012-10-12 CN CN 201220522049 patent/CN202953780U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102887461A (en) * | 2012-10-12 | 2013-01-23 | 南通力威机械有限公司 | Winch braking cylinder |
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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: 20130529 Termination date: 20151012 |
|
| EXPY | Termination of patent right or utility model |