CN201568486U - Elevator ratchet gear - Google Patents
Elevator ratchet gear Download PDFInfo
- Publication number
- CN201568486U CN201568486U CN200920180802XU CN200920180802U CN201568486U CN 201568486 U CN201568486 U CN 201568486U CN 200920180802X U CN200920180802X U CN 200920180802XU CN 200920180802 U CN200920180802 U CN 200920180802U CN 201568486 U CN201568486 U CN 201568486U
- Authority
- CN
- China
- Prior art keywords
- ratchet
- pawl
- ratchet wheel
- asbestos packing
- outside
- 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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- Fluid-Damping Devices (AREA)
- Transmission Devices (AREA)
Abstract
The utility model discloses an elevator ratchet gear, which comprises a ratchet wheel rotationally arranged on a ratchet wheel shaft. A ring-shaped outer wall of a ratchet wheel hub is provided with a ring-shaped groove. The inside of the ring-shaped groove is sleeved with an asbestos packing. The outside of the asbestos packing is sleeved with an asbestos packing sleeve. One side of the ratchet wheel is provided with a pawl seat. The pawl seat is rotationally provided with a pawl. The pawl seat is provided with a limit pin which is positioned outside the pawl and can limit a rotating angle of the pawl. The upper end of the pawl is hinged with a pull rod. The other end of the pull rod is hinged outside the asbestos packing sleeve. The utility model has simple structure and convenient operation. When the ratchet wheel rotates positively, the pawl and the ratchet wheel are automatically separated from each other to avoid the friction between the pawl and the ratchet wheel and reduce the noise; and when the ratchet wheel rotates negatively, the pawl can realize emergency braking.
Description
Technical field:
The utility model relates generally to the lift field, relates in particular to a kind of ratchet unit that is used for lift.
Background technique:
In the prior art, the ratchet unit that is used for lift is made up of ratchet, ratchet, pawl base, pawl axis etc., and its major function is to play the effect of emergency braking when faults such as startup, power failure, generation occurring at lift.But this ratchet unit can produce very big noise when turning round along with the lift drive unit.
The model utility content:
The utility model purpose is exactly in order to remedy the defective of prior art, a kind of lift ratchet unit to be provided.It can play the effect that reduces noise, protection equipment.
The utility model is achieved through the following technical solutions:
The lift ratchet unit includes the ratchet that is rotatably installed on the ratchet shaft, it is characterized in that: have annular groove on the annular outer wall of described ratchet wheel hub, be set with asbestos packing in the described annular groove, described asbestos packing is set with the asbestos packing cover outward; Described ratchet one side is provided with pawl base, be rotatablely equipped with ratchet on the described pawl base, the position limit pin that is positioned at the ratchet outside and can limits the ratchet rotation angle is installed on the described pawl base, and described ratchet upper end is hinged with pull bar, and the pull bar the other end is hinged on outside the described asbestos packing cover.
During initial state, the ratchet top is against on the ratchet; When ratchet just changes, ratchet under the effect of pull bar, the sideway swivel outside ratchet of its top, realize the disengaging of ratchet and ratchet, when ratchet turned to certain position, ratchet stopped operating under the position-limiting action of position limit pin, at this moment, realize relatively rotating between ratchet wheel hub and the asbestos packing cover; When ratchet reversed, ratchet was under the pulling function of pull bar, and its top is against on the ratchet ratchet top to the ratchet sideway swivel, realized emergency braking.
The utility model has the advantages that:
The utility model is simple in structure, and is easy to operate.When ratchet just changeed, ratchet and ratchet were thrown off automatically, avoided the friction between ratchet and ratchet, had reduced noise; When ratchet reversed, ratchet can be realized emergency braking.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.
Embodiment:
The lift ratchet unit includes the ratchet 4 that is rotatably installed on the ratchet shaft, has annular groove on the annular outer wall of ratchet 4 wheel hubs, is set with asbestos packing 7 in the described annular groove, the described asbestos packing 7 outer asbestos packing covers 5 that are set with; Described ratchet 4 one sides are provided with pawl base 2, be rotatablely equipped with ratchet 3 on the described pawl base 2, the position limit pin 1 that is positioned at ratchet 5 outsides and can limits ratchet 3 rotation angles is installed on the described pawl base 2, described ratchet 3 upper ends are hinged with pull bar 6, and pull bar 6 the other ends are hinged on outside the described asbestos packing cover 5.
Claims (1)
1. the lift ratchet unit includes the ratchet that is rotatably installed on the ratchet shaft, it is characterized in that: have annular groove on the annular outer wall of described ratchet wheel hub, be set with asbestos packing in the described annular groove, described asbestos packing is set with the asbestos packing cover outward; Described ratchet one side is provided with pawl base, be rotatablely equipped with ratchet on the described pawl base, the position limit pin that is positioned at the ratchet outside and can limits the ratchet rotation angle is installed on the described pawl base, and described ratchet upper end is hinged with pull bar, and the pull bar the other end is hinged on outside the described asbestos packing cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920180802XU CN201568486U (en) | 2009-11-27 | 2009-11-27 | Elevator ratchet gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920180802XU CN201568486U (en) | 2009-11-27 | 2009-11-27 | Elevator ratchet gear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201568486U true CN201568486U (en) | 2010-09-01 |
Family
ID=42660771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920180802XU Expired - Fee Related CN201568486U (en) | 2009-11-27 | 2009-11-27 | Elevator ratchet gear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201568486U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840251A (en) * | 2012-09-04 | 2012-12-26 | 河南陆德筑机股份有限公司 | Ratchet clutch capable of eliminating noise and abrasion between ratchet wheel and ratchet |
| CN109163030A (en) * | 2018-09-26 | 2019-01-08 | 南京康尼机电股份有限公司 | A kind of ratchet mechanism in ramp recyclable device |
| CN109382805A (en) * | 2017-08-08 | 2019-02-26 | 株式会社大福 | The workpiece support device of lifting freely |
-
2009
- 2009-11-27 CN CN200920180802XU patent/CN201568486U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102840251A (en) * | 2012-09-04 | 2012-12-26 | 河南陆德筑机股份有限公司 | Ratchet clutch capable of eliminating noise and abrasion between ratchet wheel and ratchet |
| CN102840251B (en) * | 2012-09-04 | 2015-10-07 | 河南陆德筑机股份有限公司 | The pawl clutch of noise and wearing and tearing between ratchet and ratchet can be eliminated |
| CN109382805A (en) * | 2017-08-08 | 2019-02-26 | 株式会社大福 | The workpiece support device of lifting freely |
| CN109163030A (en) * | 2018-09-26 | 2019-01-08 | 南京康尼机电股份有限公司 | A kind of ratchet mechanism in ramp recyclable device |
| CN109163030B (en) * | 2018-09-26 | 2024-03-22 | 南京康尼机电股份有限公司 | Ratchet mechanism in ramp recovery device |
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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: 20100901 Termination date: 20151127 |