CN202107461U - Weather vane for brake device of rotary motor of tower crane - Google Patents
Weather vane for brake device of rotary motor of tower crane Download PDFInfo
- Publication number
- CN202107461U CN202107461U CN2011201881643U CN201120188164U CN202107461U CN 202107461 U CN202107461 U CN 202107461U CN 2011201881643 U CN2011201881643 U CN 2011201881643U CN 201120188164 U CN201120188164 U CN 201120188164U CN 202107461 U CN202107461 U CN 202107461U
- Authority
- CN
- China
- Prior art keywords
- tower crane
- brake device
- rotary motor
- weather vane
- releasing 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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Abstract
The utility model discloses a weather vane for a brake device of a rotary motor of a tower crane, which is characterized by comprising a body. A releasing rod is arranged in the body, the tail end of the releasing rod is provided with a rotating fulcrum, and a releasing rod spring is positioned between the releasing rod and the body. A magnet coil and a check block are positioned in the body, the tail end of the check block is provided with a pull spring, and a manual push handle is disposed outside the check block. The weather vane for the brake device of the rotary motor of the tower crane has the advantages that the brake device can be released when the tower crane is power off, the rotary motor is in a free state and can rotate freely when a horizontal arm is blown, and the trend is kept at the position in the same direction wit the wind direction. Therefore, wind force bearing by the whole tower crane is reduced, and the safety of the tower crane is improved.
Description
Technical field
The utility model discloses a kind of weathercock, be particularly useful on the slewing motor of tower crane (abbreviation tower crane).
Background technology
On tower crane (abbreviation tower crane), control the rotation of transverse arm through the manual operation slewing motor, after work-hours finishes, the slewing motor outage, this moment, friction stopping device will lock, and transverse arm can not freely rotate.This is a kind of quite dangerous state: if there is strong wind to blow, and transverse arm is in the state of maximum windward side just, and the wind-force that is born might make whole tower crane topple.
Summary of the invention
The purpose of the utility model provides and a kind ofly is applied to weathercock on the tower crane rotation motor braking device to remedy the prior art deficiency.
The utility model for realizing the technical scheme that purpose adopts is: be applied to the weathercock on the tower crane rotation motor braking device; It is characterized in that: comprise body; Be provided with trigger bar in the body, the trigger bar end has rotating fulcrum, is provided with the trigger bar spring between trigger bar and the body; Be provided with magnet coil and block in the body, the block end has extension spring; Block is outside equipped with and manually pushes away handle.
The beneficial effect of the utility model is: can be under the situation of tower crane outage; Discharge brake gear; Make slewing motor be in free state, just can freely rotate when transverse arm is wind blown, its trend is to keep and wind direction position in the same way; Thereby reduced the wind-force that whole tower crane bore, improved the safety of tower crane.
Pass through embodiment below, and combine accompanying drawing that the utility model is further described.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment.
Fig. 2 is the structural representation that weathercock and miscellaneous part are used.
The specific embodiment
Embodiment: after weathercock and miscellaneous part installation, can use.
When normal operation, the tower crane driver rotates transverse arm through the slewing motor running, and 1 is the axle of slewing motor; During this time, brake gear is in release position: magnet coil 2 gets electric, produces magnetic force; Magnetic force holds armature 3 and friction disc 4, and friction disc 4 breaks away from brake disc 5.
When transverse arm forwards appropriate position to, cut off the power supply of slewing motor, start brake gear simultaneously: the power supply of cutoff solenoid 2; Magnetic force disappears; Armature 3 resets under the effect of retarding spring 6 with friction disc 4, and friction disc 4 is fitted with brake disc 5 end faces, forms braking.
When coming off duty, iff is full tester in power-down state, certainly will can continue to keep end face applying braking modes with brake disc 5 by friction disc 4, our problem that need solve that Here it is, and at this moment, the effect of weathercock just shows especially out.
As shown in Figure 2, when being in normal working, armature 3 is moved to the left by the adhesive meeting with friction disc 4; At this moment; It is that rotate at the center with rotating fulcrum 9 that release screw rod 7 moves pressuring spring 15 promotion trigger bars 8, and at this moment, the round platform 10 of trigger bar 8 can be crossed the top of block 11.Give magnet coil 12 energisings, magnetic force meeting adhesive block 11 downward (magnetic force can overcome the pulling force of extension spring 13) of generation, block 11 is in the right-hand of round platform 10 by residing position after the adhesive.
At this moment, to magnet coil 2 outages, corresponding component has the trend that resets; But have a link to stop this trend that resets: round platform 10 has propped up block 11, can not reset; Cause whole homing action not accomplish; That friction disc 4 can not contact with brake disc 5, and slewing motor is in free state, has reached our purpose.
Last action is exactly to give magnet coil 12 outages, because round platform 10 is tightly pushed down block 11, block 11 can not reset, and complete machine has just kept this state, up to start next time.
In order to tackle improper power failure, we have also designed manual mode: with the outer end of artificial pulling trigger bar 8, personnel selection is defeated and is manually pushed away handle 14 again, also can achieve the goal.
Claims (1)
1. be applied to the weathercock on the tower crane rotation motor braking device; It is characterized in that: comprise body; Be provided with trigger bar (8) in the body, trigger bar (8) end has rotating fulcrum (9), is provided with trigger bar spring (15) between trigger bar (8) and the body; Be provided with magnet coil (12) and block (11) in the body, block (11) end has extension spring (13); Block (11) is outside equipped with and manually pushes away handle (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201881643U CN202107461U (en) | 2011-06-07 | 2011-06-07 | Weather vane for brake device of rotary motor of tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201881643U CN202107461U (en) | 2011-06-07 | 2011-06-07 | Weather vane for brake device of rotary motor of tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202107461U true CN202107461U (en) | 2012-01-11 |
Family
ID=45432907
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201881643U Expired - Fee Related CN202107461U (en) | 2011-06-07 | 2011-06-07 | Weather vane for brake device of rotary motor of tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202107461U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653749A (en) * | 2021-09-14 | 2021-11-16 | 安徽创新电磁离合器有限公司 | Integral internal pulling type vane brake |
| WO2023123774A1 (en) * | 2021-12-30 | 2023-07-06 | 湖南三一塔式起重机械有限公司 | Rotary power failure anti-lock method and system, tower crane, and storage medium |
-
2011
- 2011-06-07 CN CN2011201881643U patent/CN202107461U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113653749A (en) * | 2021-09-14 | 2021-11-16 | 安徽创新电磁离合器有限公司 | Integral internal pulling type vane brake |
| WO2023123774A1 (en) * | 2021-12-30 | 2023-07-06 | 湖南三一塔式起重机械有限公司 | Rotary power failure anti-lock method and system, tower crane, and storage medium |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120111 Termination date: 20140607 |