CN201419988Y - Ratchet wheel mechanism of hopper of tower type crane - Google Patents
Ratchet wheel mechanism of hopper of tower type crane Download PDFInfo
- Publication number
- CN201419988Y CN201419988Y CN2009200366667U CN200920036666U CN201419988Y CN 201419988 Y CN201419988 Y CN 201419988Y CN 2009200366667 U CN2009200366667 U CN 2009200366667U CN 200920036666 U CN200920036666 U CN 200920036666U CN 201419988 Y CN201419988 Y CN 201419988Y
- Authority
- CN
- China
- Prior art keywords
- ratchet
- detent
- ratchet wheel
- hopper
- cam
- 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 - Lifetime
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Abstract
The utility model relates to a ratchet wheel mechanism of a hopper of a tower type crane. A coaxial position of a V-belt pulley is connected with a ratchet wheel by a bolt. A detent is arranged besidethe ratchet wheel, and the root part of the detent is connected with a pin roll fixed on the V-belt pulley. One end of an extension spring is fixed on the side face of the V-belt pulley, and the other end is connected to the detent to ensure that the detent extends into the teeth of the ratchet wheel. Since the detent is clung to the ratchet wheel, the reverse rotation of the V-belt pulley is avoided, and the hopper can not quickly drop and can stably stop in the air even power failure occurs, thereby an accident is avoided. A mandril is installed at the inner side of the detent; the other end of the mandril is provided with a roller wheel which contacts with a cam; and the cam is installed on a camshaft. When the cam bulges to push the mandril to resist the pull of the extension spring,the detent is separated from the ratchet wheel, an operating motor rotates reversely, and the hopper falls off.
Description
Affiliated technical field
The utility model relates to the ratchet device of tower crane hopper.
Background technology
The tower crane hopper, as power, the interlock pulley conical disk utilizes the cone belt transferring power with motor.The forward or reverse of utilization motor promotes hopper or decline.Its weak point is: in case run into power failure, the weight of hopper forces hopper to drop rapidly, causes out of controlly, usually leads to a disaster.
The utility model content
The purpose of this utility model is the ratchet device that the tower crane hopper is provided in order to overcome above-mentioned weak point, even run into power failure, hopper also can not drop rapidly, can be parked in steadily in the air, avoids the generation of accident.
The technical scheme that its technical matters that solves the utility model adopts is: ratchet of bolt together on the coaxial position of pulley conical disk.There is ratchet on next door at ratchet, and the root of ratchet is connected with bearing pin on being fixed on pulley conical disk.One of extension spring is fixed on the side of pulley conical disk, and the other end of extension spring is connected on the ratchet, and ratchet is stretched in the tooth of ratchet.Because ratchet is close on the ratchet, has avoided the counter-rotating of pulley conical disk, even run into power failure, hopper can not drop rapidly yet, can be parked in aerial steadily.Have a push rod to be installed in the inboard of ratchet, the other end of push rod is equipped with roller, and roller and cam are inconsistent, and cam is installed on the camshaft.When the projection of cam promotes the pulling force that push rod overcomes extension spring, make ratchet break away from ratchet, the operating electrical machines counter-rotating descends hopper.
Effective effect of the present utility model is, uses the ratchet device of tower crane hopper of the present utility model, even run into power failure, hopper can not drop rapidly yet, can be parked in the air steadily, avoids the generation of accident.
Description of drawings
Figure is the structural representation of the ratchet device of tower crane hopper of the present utility model.1-pulley conical disk among the figure, the 2-pin, the 3-extension spring, the 4-bearing pin, the 5-ratchet, 6-is strong, 7--ratchet, 8--bolt, 9--cam, 10--camshaft, 11-roller, 12-push rod.
The specific embodiment
On the coaxial position of pulley conical disk (1), connect a ratchet (7) with bolt (8).On the next door of ratchet (7) ratchet (5) is arranged, the root of ratchet (5) is connected with bearing pin (4) on being fixed on pulley conical disk.One of extension spring (3) is fixed on the side of pulley conical disk (1), and the other end of extension spring (3) is connected on the ratchet (5), and ratchet (5) is stretched in the tooth of ratchet (7).Because ratchet (5) is close on the ratchet (7), has avoided the counter-rotating of pulley conical disk (1), even run into power failure, hopper can not drop rapidly yet, can be parked in aerial steadily.Have a push rod (12) to be installed in the inboard of ratchet (5), the other end of push rod (12) is equipped with roller (11), and roller (11) and cam (9) are inconsistent, and cam (9) is installed on the camshaft (10).When the projection of cam (9) promotes the pulling force that push rod (12) overcomes extension spring (3), make ratchet (5) break away from ratchet (7), the operating electrical machines counter-rotating descends hopper.
Claims (1)
1, the ratchet device of tower crane hopper, it is characterized in that: ratchet of bolt together on the coaxial position of pulley conical disk, there is ratchet on next door at ratchet, the root of ratchet is connected with bearing pin on being fixed on pulley conical disk, and of extension spring is fixed on the side of pulley conical disk, and the other end of extension spring is connected on the ratchet, there is a push rod to be installed in the inboard of ratchet, the other end of push rod is equipped with roller, and roller and cam are inconsistent, and cam is installed on the camshaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200366667U CN201419988Y (en) | 2009-03-05 | 2009-03-05 | Ratchet wheel mechanism of hopper of tower type crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200366667U CN201419988Y (en) | 2009-03-05 | 2009-03-05 | Ratchet wheel mechanism of hopper of tower type crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201419988Y true CN201419988Y (en) | 2010-03-10 |
Family
ID=41806641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200366667U Expired - Lifetime CN201419988Y (en) | 2009-03-05 | 2009-03-05 | Ratchet wheel mechanism of hopper of tower type crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201419988Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111498719A (en) * | 2020-04-15 | 2020-08-07 | 合肥惠利普电机有限公司 | Anti-reverse tool for lifting force station and anti-reverse method thereof |
-
2009
- 2009-03-05 CN CN2009200366667U patent/CN201419988Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111498719A (en) * | 2020-04-15 | 2020-08-07 | 合肥惠利普电机有限公司 | Anti-reverse tool for lifting force station and anti-reverse method thereof |
| CN111498719B (en) * | 2020-04-15 | 2021-11-26 | 合肥惠利普电机有限公司 | Anti-reverse tool for lifting force station and anti-reverse method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100310 |