CN206142710U - Swing arm anti -back -inclination device for tower crane - Google Patents
Swing arm anti -back -inclination device for tower crane Download PDFInfo
- Publication number
- CN206142710U CN206142710U CN201621151971.7U CN201621151971U CN206142710U CN 206142710 U CN206142710 U CN 206142710U CN 201621151971 U CN201621151971 U CN 201621151971U CN 206142710 U CN206142710 U CN 206142710U
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- CN
- China
- Prior art keywords
- close
- pontic
- inner guide
- swing arm
- tilting
- 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.)
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- Jib Cranes (AREA)
- Control And Safety Of Cranes (AREA)
Abstract
The utility model discloses a swing arm anti -back -inclination device for tower crane, including the pontic, the pontic both ends are fixed with the anti -hypsokinesis pole, the anti -hypsokinesis pole seals up and is fixed with the outer guide arm of connecting the otic placode including fixing at pontic and one end bottom, outer guide arm has the inner guide through the spring coupling as for inside, the inner guide top is provided with buffer, the anti -hypsokinesis pole is still including being close early warning device and ending trigger device. The utility model discloses simple structure, the effect is obvious, can remind operating personnel to be about to the maxmizing inclination in advance through being close early warning device, through restrain the jib loading boom layback when trigger device can be at the maxmizing inclination to the tower machine has been avoided because the excessive potential safety hazard of swinging back and bringing has greatly improved the security.
Description
Technical field
The utility model is related to a kind of derrick crane servicing unit, belongs to engineering machinery field, specifically a kind of tower
Heavy-duty machine swing arm anti-squat system.
Background technology
Because whip-typed tower crane crane arm can be portion's set of pitching activity, in order to ensure that tower crane security needs will
The luffing angle of crane arm is controlled in certain scope, and crane arm drag-line ensure that crane arm will not have a down dip, but cannot ensure
A kind of size at the crane arm elevation angle, it is therefore desirable to device that can control the crane arm elevation angle.
The content of the invention
For the problem that above-mentioned prior art is present, the utility model provides a kind of derrick crane swing arm anti-hypsokinesis dress
Put, early warning can be to provide in close maximum elevation, greatly ensure that the security of tower crane operation.
To achieve these goals, the technical solution adopted in the utility model is：After a kind of derrick crane is prevented with swing arm
Incline device, including pontic, and the pontic two ends are fixed with tilting-preventing rod；The tilting-preventing rod includes being fixed on pontic and one end bottom
Portion seals and is fixed with the outer guide rod of connection otic placode, and the outer guide rod is described by being connected with inner guide as internal spring
Inner guide top is provided with buffer unit；The tilting-preventing rod also includes close prior-warning device and cut-off triggering device.
Further, close prior-warning device includes the close device being arranged on inner guide, the stroke installed on outer guide rod limit
Position device I and the proximity sensing device installed in operation interior, the close device includes the close device support being fixed on inner guide
And be provided with the close bar of spacing ring, the close device outer end is provided with through hole, the close bar through after through hole using bearing pin or
Bolt is spacing while being provided with buffer spring between spacing ring and through hole.
Further, the cut-off triggering device includes being arranged on the triggering device on inner guide, arranges on outer guide rod
Range limiter II and the alarm being connected with layback cut-off circuit.
Further, the pontic is also connected to tilting-preventing rod by reinforcement, can effectively ensure that structural strength.
The beneficial effects of the utility model are：Operating personnel can be in advance reminded to be up to maximum by close prior-warning device
Inclination angle, can suppress crane arm to swing back, so as to avoid tower crane due to excessive by ending triggering device when inclination maximum is reached
The potential safety hazard that layback brings, drastically increases security.
Description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is the utility model tilting-preventing rod structural representation；
Fig. 3 is the close device structural representation of the utility model.
In figure：1st, pontic, 2, tilting-preventing rod, 21, outer guide rod, 22, inner guide, 23, buffer unit, 24, close early warning dress
Put, 241, close device, 242, range limiter I, 243, close device support, 244, spacing ring, 245, buffer spring, 246, be close to
Bar, 25, cut-off triggering device, 251, triggering device, 252, range limiter II, 3, otic placode, 4, spring, 5, reinforcement.
Specific embodiment
Below in conjunction with the accompanying drawings the utility model is described in further detail.
As depicted in figs. 1 and 2, a kind of derrick crane swing arm anti-squat system, including pontic 1, the two of the pontic 1
End is fixed with tilting-preventing rod 2；The tilting-preventing rod 2 includes being fixed on the one end of pontic 1 and sealed bottom and being fixed with connection otic placode 3
Outer guide rod 21, by being connected with inner guide 22 as internal spring 4, the top of the inner guide 22 sets the outer guide rod 21
It is equipped with buffer unit 23；The tilting-preventing rod 2 also includes close prior-warning device 24 and cut-off triggering device 25.
Further, close prior-warning device 24 includes the close device 241 being arranged on inner guide 22, installs on outer guide rod 21
Range limiter I 242 and indoor installed in operation and connect the proximity sensing device of proximity sensing circuit, as shown in figure 3, institute
Close device 242 is stated including the close device support 243 being fixed on inner guide 22 and the close bar 246 for being provided with spacing ring 244, institute
State the close outer end of device support 243 and be provided with through hole, the close bar 246 is spacing while spacing using bearing pin or bolt through after through hole
Buffer spring 245 is provided between ring 244 and through hole.
Further, the cut-off triggering device 25 includes that the triggering device 251 being arranged on inner guide 22, setting are led outside
Range limiter II 252 on bar 21 and the alarm being connected with layback cut-off circuit.
Further, the pontic 1 is also connected to tilting-preventing rod 2 by reinforcement 5, can effectively ensure that structural strength.
Anti-squat system is connected on tower top support by otic placode and steel wire rope, when the crane arm elevation angle reaches to a certain degree,
Crane arm can touch the buffer unit on anti-squat system, and as the crane arm elevation angle increases, the spring in outer guide rod is compressed,
Spring-compressed to a certain extent when, the close device in close prior-warning device is contacted with range limiter I 242, is turned on close
Warning circuit, makes proximity sensing device send alarm signal, indicating alarm sound and amber light flicker, understands operating personnel and be close to most
Big-elevation, when the crane arm elevation angle continues to expand, final triggering device 251 touches range limiter II 252, immediately conducting layback
Cut-off circuit, crane arm layback is suppressed, while alarm blinking red lamp points out driver reaching maximum elevation, it is to avoid tower
The potential safety hazard that machine brings due to excessively swinging back.
In sum, the utility model simple structure, effect substantially, by close prior-warning device operator can be in advance reminded
Member is up to inclination maximum, by ending triggering device crane arm can be suppressed to swing back when inclination maximum is reached, so as to avoid
The potential safety hazard that tower crane is brought due to excessively swinging back, drastically increases security.
Claims (4)
1. a kind of derrick crane swing arm anti-squat system, it is characterised in that including pontic（1）, the pontic（1）Two ends
It is fixed with tilting-preventing rod（2）；The tilting-preventing rod（2）Including being fixed on pontic（1）One end and sealed bottom are simultaneously fixed with connection
Otic placode（3）Outer guide rod（21）, the outer guide rod（21）By as internal spring（4）It is connected with inner guide（22）, it is described
Inner guide（22）Top be provided with buffer unit（23）；The tilting-preventing rod（2）Also include close prior-warning device（24）And
Cut-off triggering device（25）.
2. a kind of derrick crane swing arm anti-squat system according to claim 1, it is characterised in that close early warning dress
Put（24）Including being arranged on inner guide（22）On close device（241）, install in outer guide rod（21）On range limiter I
（242）And it is indoor installed in operation and connect the proximity sensing device of proximity sensing circuit, the close device（242）Including fixation
In inner guide（22）On close device support（243）And it is provided with spacing ring（244）Close bar（246）, the close device
Frame（243）Outer end is provided with through hole, the close bar（246）It is spacing while spacing ring using bearing pin or bolt through after through hole
（244）Buffer spring is provided with between through hole（245）.
3. a kind of derrick crane swing arm anti-squat system according to claim 1, it is characterised in that the cut-off is touched
Transmitting apparatus（25）Including being arranged on inner guide（22）On triggering device（251）, arrange in outer guide rod（21）On stroke limit
Device II（252）And the alarm being connected with layback cut-off circuit.
4. a kind of derrick crane swing arm anti-squat system according to claim 1, it is characterised in that the pontic
（1）Also pass through reinforcement（5）It is connected to tilting-preventing rod（2）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621151971.7U CN206142710U (en) | 2016-10-31 | 2016-10-31 | Swing arm anti -back -inclination device for tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621151971.7U CN206142710U (en) | 2016-10-31 | 2016-10-31 | Swing arm anti -back -inclination device for tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206142710U true CN206142710U (en) | 2017-05-03 |
Family
ID=58622184
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621151971.7U Active CN206142710U (en) | 2016-10-31 | 2016-10-31 | Swing arm anti -back -inclination device for tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206142710U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302244A (en) * | 2020-02-28 | 2020-06-19 | 徐州建机工程机械有限公司 | Backward-tilting prevention control system and method for movable arm tower crane |
| CN111320089A (en) * | 2020-04-27 | 2020-06-23 | 上海紫洵建设机械设备有限公司 | Adjustable support of tower crane |
-
2016
- 2016-10-31 CN CN201621151971.7U patent/CN206142710U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111302244A (en) * | 2020-02-28 | 2020-06-19 | 徐州建机工程机械有限公司 | Backward-tilting prevention control system and method for movable arm tower crane |
| CN111320089A (en) * | 2020-04-27 | 2020-06-23 | 上海紫洵建设机械设备有限公司 | Adjustable support of tower crane |
| CN111320089B (en) * | 2020-04-27 | 2021-12-07 | 上海紫洵建设机械设备有限公司 | Adjustable support of tower crane |
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| GR01 | Patent grant |