CN1245260A - Buffer mechanism using pawl to brake - Google Patents
Buffer mechanism using pawl to brake Download PDFInfo
- Publication number
- CN1245260A CN1245260A CN 98116905 CN98116905A CN1245260A CN 1245260 A CN1245260 A CN 1245260A CN 98116905 CN98116905 CN 98116905 CN 98116905 A CN98116905 A CN 98116905A CN 1245260 A CN1245260 A CN 1245260A
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- CN
- China
- Prior art keywords
- ratchet
- pawl
- active base
- braked
- damping mechanism
- 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.)
- Pending
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- Vibration Dampers (AREA)
Abstract
A buffer mechanism for pawl braking features that the pawl is hinged to movable seat, a stop block is behind the movable seat, and a buffering elastic body is between movable seat and bumping block. After the ratchet wheel is braked by pawl, the shock is buffered by the elastic body compressed by movable seat. During the procedure of movable seat compressing the elastic body, it moves along an arc track whose circular center is the axis of ratchet wheel to be braked, so ensuring the engaging state between ratchet wheel and pawl.
Description
Content relates to the damping mechanism of using pawl to brake, and especially the braking to ratchet cushions.
The pawl type braking is a kind of mechanism commonly used in the machinery, and it and friction catch relatively the reliable advantage of braking is arranged, but the impact of the using pawl to brake of simple-type are big, can cause damage self and machinery, and therefore, the big object of braking the moment of inertia must be established buffer structure.
The objective of the invention is provides a kind of buffer structure for the ratchet of the big inertia of braking.
Technology contents of the present invention:
Ratchet active base and block are set, and folder block rubber or other elasticity are hinged on ratchet on the ratchet active base with pawl axis between the two, and after ratchet and ratchet generation engagement braking, impact force passes to compression elasticity composition deformation on the active base through ratchet, obtains buffering.
With a secondary connecting plate of doing the hole, be enclosed within on the ratchet shaft of being braked, be elongated to the ratchet edge Wai Chu that is braked at connecting plate, fixing one can hinged claw and the ratchet active base of compression buffering elasticity, pawl axis is moved as circular arc around the ratchet shaft of being braked in buffering course, keep the engagement of ratchet and ratchet.Also can outside the ratchet edge of being braked, do the arc orbit concentric, the ratchet active base is moved along track in the braking buffering course with described ratchet.The form of described track has: do long arc shape hole or curve bath or arched ribs on casing.
Another kind of way is to do the ratchet active base longer, and hinging hole is done at two, and one is hinged on the ratchet edge of being braked casing far away the other end hinged claw.Accompany the buffering elasticity between it and the block.After ratchet and gear teeth meshing, pawl axis rotates around the articulating point of this activity pawl base and casing, and pressure elasticity thing in moving obtains buffering.Should be with the articulating point of this ratchet active base and casing, arrange on same the near linear that with the center of circle of the articulating point of ratchet and the ratchet braked adjusting to pawl axis spool is being on same the arc in the center of circle with the ratchet braked all when ratchet and ratchet engagement braking point (promptly cushioning starting point) take place and cushion terminal point.
The damping mechanism beneficial effect of this using pawl to brake is the impact that can effectively alleviate the using pawl to brake ratchet, and is more simple and feasible, and a kind of way in especially described back is rotated the pawl axis on the active base outside the ratchet edge of being braked, be more convenient for installing and change.But this way can only guarantee ratchet and the good engagement state of ratchet when braking starting point and terminal point.
The accompanying drawings optimum implementation:
The ratchet (3) of rotation is contained in the casing of being made up of two things such as steel plate (7), in the wheel rim outside of ratchet (3), adorned the using pawl to brake damping mechanism of forming by ratchet (6), torsion spring (11), ratchet active base (13), buffering elasticity (14), block (15) etc.The hole that an axle (8) passes (13) one of the hole of (15) one of the hole of casing (7) plate and blocks and ratchet active base is fixed with hinged them.Block pin (16) passes the hole of casing (7) and the hole of block (15) other end, and block is fixed.The hole that pawl axis (12) penetrates a pair of earhole of ratchet active base (13) other end and ratchet afterbody constitutes that both are hinged, between also gone here and there torsion spring (11).After nut (10) on the block (15) passes hole on the ratchet active base, go up precompression for buffering elasticity (14) with adjusting nut (9).Ratchet active base (13) goes up also has pressure-bearing projection (17) to penetrate in the hole of buffering elasticity (14), plays the location and limits the buffer compression amount.Torsion spring (11) is contained in the groove of ratchet (6) afterbody, and is through on the pawl axis (12).
At the driving lever (5) of ratchet head dress, the lever (4) of its controlled mechanism is stirred.When needs were braked, lever (4) broke away from driving lever (5), and torsion spring (11) promotes ratchet and ratchet engagement.The impact force that ratchet is braked is transmitted through ratchet, and ratchet active base (13) is rotated around axle (8), and pressure elasticity thing (14) obtains buffering.Before elasticity was compressed to the limit, the pressure-bearing projection (17) on the active base (13) contacted with block, and buffer stage finishes.
If one pair of porose connecting plate (2) is enclosed within on the ratchet shaft of being braked (1), extend to ratchet edge Wai Chu at it, the pawl base of enough hinged claw of an equipped prodigiosin and compression buffering elasticity, just can reach pawl axis in the buffering course of using pawl to brake ratchet, move as circular arc around the ratchet shaft of being braked, keep the engagement of ratchet and ratchet in buffering course, not change.
Claims (6)
1, a kind of damping mechanism of using pawl to brake, it is characterized in that it is made up of ratchet active base (13), block (15), elasticity (14), ratchet (6) be hinged on can the ratchet active base (13) of mobile position on, block (15) is fixed on the casing, elasticity (14) is contained between ratchet active base (13) and the block (15), and after ratchet (6) and the ratchet engagement, the braking impact force passes on the ratchet active base (13) through ratchet, pawl axis (12), pressure elasticity thing (14) obtains buffering.
2, the damping mechanism of using pawl to brake according to claim 1 is characterized in that described ratchet active base (13) is to be contained in one pair on the connecting plate (2) that can change around the axle of the ratchet of being braked.
3, the damping mechanism of using pawl to brake according to claim 1 is characterized in that described ratchet active base (13) is to be contained on the outer track of the ratchet wheel rim braked.
4, the damping mechanism of using pawl to brake according to claim 1 is characterized in that described ratchet active base (13) two is porose, and one is hinged on the casing, and other end and ratchet (6) are hinged.
5, the damping mechanism of using pawl to brake according to claim 1 is characterized in that torsion spring (11) is contained in the groove of ratchet afterbody, is through on the pawl axis (12).
6, the damping mechanism of using pawl to brake according to claim 1 is characterized in that pressure-bearing projection (17) is arranged on the described ratchet active base (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98116905 CN1245260A (en) | 1998-08-17 | 1998-08-17 | Buffer mechanism using pawl to brake |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98116905 CN1245260A (en) | 1998-08-17 | 1998-08-17 | Buffer mechanism using pawl to brake |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1245260A true CN1245260A (en) | 2000-02-23 |
Family
ID=5225255
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98116905 Pending CN1245260A (en) | 1998-08-17 | 1998-08-17 | Buffer mechanism using pawl to brake |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1245260A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903822A (en) * | 2016-06-20 | 2016-08-31 | 广州瑞松北斗汽车装备有限公司 | Workbench of intelligent robot rolling and edge covering system |
| CN109763664A (en) * | 2019-01-22 | 2019-05-17 | 金华捷科工具有限公司 | A kind of buffer-type speed difference catching device |
-
1998
- 1998-08-17 CN CN 98116905 patent/CN1245260A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903822A (en) * | 2016-06-20 | 2016-08-31 | 广州瑞松北斗汽车装备有限公司 | Workbench of intelligent robot rolling and edge covering system |
| CN109763664A (en) * | 2019-01-22 | 2019-05-17 | 金华捷科工具有限公司 | A kind of buffer-type speed difference catching device |
| CN109763664B (en) * | 2019-01-22 | 2022-06-10 | 金华捷科工具有限公司 | Buffering type speed difference falling protector |
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Legal Events
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|---|---|---|---|
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| PB01 | Publication | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhong Xiang Document name: Notification before expiration of term |
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| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhong Xiang Document name: Notice of first review |
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| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Zhong Xiang Document name: Deemed as a notice of withdrawal |
|
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |