CN204310734U - The pre-anti-tilting apparatus of a kind of tower machine jacking - Google Patents
The pre-anti-tilting apparatus of a kind of tower machine jacking Download PDFInfo
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- CN204310734U CN204310734U CN201420773858.7U CN201420773858U CN204310734U CN 204310734 U CN204310734 U CN 204310734U CN 201420773858 U CN201420773858 U CN 201420773858U CN 204310734 U CN204310734 U CN 204310734U
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- jacking
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- lower turntable
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Abstract
The utility model discloses the pre-anti-tilting apparatus of a kind of tower machine jacking, comprise lower turntable skeleton and jacking support ear, described jacking support ear is fixed on four corners of lower turntable skeleton, described lower turntable skeleton is fixed with adapter sleeve and adapter plate, high strength bolt is connected with bottom described adapter sleeve, described adapter plate is fixed with the photoelectric proximity switch receiving high strength bolt signal, and described photoelectric proximity switch is connected with controller, cut-offfing of described controller control tower machine swing type mechanism power supply.After pulling down high strength bolt, photoelectric proximity switch obtains control signal because of the source light that cannot receive tested bolt and reflect back, thus cuts off the power supply of swing type mechanism, makes it to turn round the effect that large arm plays safety guard-safeguard.The utility model makes simple, easy for installation; In operation tower crane process, particularly in vital jacking link, the utility model effectively can reduce the tower crane overthrow accident caused because of personnel's carelessness.
Description
Technical field
The utility model relates to the pre-anti-tilting apparatus of a kind of tower machine jacking.
Background technology
Tower crane is as heavy construction construction machinery and equipment, only have strong large-scale state holding company just to have the nineties in eighties of last century, scale state owned enterprise has the administration of specialty, the operating personal of specialty, and tower crane is that enterprises uses substantially, manage relative specification, accident is few.In recent years, the quantity of tower crane got more and more, and accident is also on the increase.Relevant expert thinks, the installation of tower crane, jacking and dismounting are three links be prone to accidents most.The installation of tower crane, jacking, dismounting need by the troop of professional qualification and understand that the personnel of specialty operate in strict accordance with the scheme through examination & approval, and wherein which link goes wrong, do not operate in strict accordance with scheme, all likely causes accident to occur.JGT196-2010 " building operation tower crane is installed, use, dismounting emergency decree " is in 3.4.6 " in jacking process; should not carry out hoisting, turn round, the operation such as luffing ", particularly forbid to rotate large arm after turntable and standard knot tie bolt under dismounting before and after tower crane jacking, and the fitting-up gang having part irregular is because personnel's carelessness is once rotate the large arm on top at this moment, the fixing of tie bolt will be lost because of large unbalanced moment thus cause the whole topside of tower crane to be tumbled.
Utility model content
The purpose of this utility model is for overcoming above-mentioned the deficiencies in the prior art, provides the jacking of a kind of tower machine pre-anti-tilting apparatus, and this pre-anti-tilting apparatus effectively can reduce the tower crane overthrow accident caused because of personnel's carelessness.
For achieving the above object, the utility model adopts following technical proposals:
The pre-anti-tilting apparatus of a kind of tower machine jacking, comprise lower turntable skeleton and jacking support ear, described jacking support ear is fixed on four corners of lower turntable skeleton, the described jacking support ear other end is connected with tower crane climbing frame, described lower turntable skeleton is fixed with adapter sleeve and adapter plate, high strength bolt is connected with bottom described adapter sleeve, adapter sleeve and the adapter sleeve be welded on standard knot are fixed together by described high strength bolt, described adapter plate is positioned on the main limb limit of lower turntable skeleton of adapter sleeve, described adapter plate is fixed with the photoelectric proximity switch receiving high strength bolt signal by coupling nut, described photoelectric proximity switch is connected with controller, cut-offfing of described controller control tower machine swing type mechanism power supply.
After the dead work of tower machine jacking is all carried out, crane arm is forward introduced standard knot direction, remove lower turntable and high strength bolt, suspension hook is sling a counterweight, front and back are travelling car slowly, finds an equilibrium point, and now whole topside is all around balance, this time, then whole topside can cause the accident of fatal crass because of lack of equilibrium once because chaufeur maloperation revolution crane arm.And the utility model photoelectric proximity switch obtains control signal because of the source light that cannot receive tested high strength bolt and reflect back, thus cut off the power supply of swing type mechanism, just can effectively prevent personnel's maloperation and the potential safety hazard that causes.
The beneficial effects of the utility model are: make simple, easy for installation; In operation tower crane process, particularly in vital jacking link, the utility model effectively can reduce the tower crane overthrow accident caused because of personnel's carelessness.
Accompanying drawing explanation
Fig. 1 is the structural representation of the pre-anti-tilting apparatus of the utility model tower machine jacking;
Fig. 2 is the partial enlarged drawing at pre-anti-tilting apparatus A place in Fig. 1;
Fig. 3 is the birds-eye view of pre-anti-tilting apparatus in Fig. 1;
In figure, 1 is lower turntable skeleton, and 2 is jacking support ear, and 3 is high strength bolt, and 4 is photoelectric proximity switch, and 5 is coupling nut, and 6 is adapter plate, and 7 is adapter sleeve.
Detailed description of the invention
Below in conjunction with drawings and Examples, the utility model is further illustrated.
As shown in Figure 1-Figure 3, the pre-anti-tilting apparatus of tower machine jacking, comprise lower turntable skeleton 1 and jacking support ear 2, jacking support ear 2 is welded on four corners of lower turntable skeleton 1, jacking support ear 2 other end is connected with tower crane climbing frame, lower turntable skeleton 1 is welded with adapter sleeve 7 and adapter plate 6, is connected with high strength bolt 3 bottom adapter sleeve 7, adapter plate 6 is welded on the main limb limit of lower turntable skeleton 1 of adapter sleeve 7, and adapter plate 6 is fixed with photoelectric proximity switch 4 by coupling nut 5.This device is spiral installation 4 photoelectric proximity switch 4 on lower turntable skeleton 1 four angles, and it controls and the supporting setting of tower crane swing type mechanism.Under normal circumstances, adapter sleeve 7 and the adapter sleeve be welded on standard knot are fixed together by high strength bolt 3; After pulling down high strength bolt 3, photoelectric proximity switch 4 obtains control signal because of the source light that cannot receive tested bolt and reflect back, thus cuts off the power supply of swing type mechanism, makes it to turn round the effect that large arm plays safety guard-safeguard.
By reference to the accompanying drawings detailed description of the invention of the present utility model is described although above-mentioned; but the restriction not to the utility model protection domain; one of ordinary skill in the art should be understood that; on the basis of the technical solution of the utility model, those skilled in the art do not need to pay various amendment or distortion that creative work can make still within protection domain of the present utility model.
Claims (4)
1. the pre-anti-tilting apparatus of tower machine jacking, it is characterized in that, comprise lower turntable skeleton and jacking support ear, described jacking support ear is fixed on four corners of lower turntable skeleton, described lower turntable skeleton is fixed with adapter sleeve and adapter plate, is connected with high strength bolt bottom described adapter sleeve, described adapter plate is fixed with the photoelectric proximity switch receiving high strength bolt signal, described photoelectric proximity switch is connected with controller, cut-offfing of described controller control tower machine swing type mechanism power supply.
2. the pre-anti-tilting apparatus of tower machine jacking as claimed in claim 1, is characterized in that, the described jacking support ear other end is connected with tower crane climbing frame.
3. the pre-anti-tilting apparatus of tower machine jacking as claimed in claim 1, is characterized in that, adapter sleeve and the adapter sleeve be welded on standard knot are fixed together by described high strength bolt.
4. the pre-anti-tilting apparatus of tower machine jacking as claimed in claim 1, is characterized in that, described adapter plate is positioned on the main limb limit of lower turntable skeleton of adapter sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773858.7U CN204310734U (en) | 2014-12-09 | 2014-12-09 | The pre-anti-tilting apparatus of a kind of tower machine jacking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420773858.7U CN204310734U (en) | 2014-12-09 | 2014-12-09 | The pre-anti-tilting apparatus of a kind of tower machine jacking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204310734U true CN204310734U (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201420773858.7U Active CN204310734U (en) | 2014-12-09 | 2014-12-09 | The pre-anti-tilting apparatus of a kind of tower machine jacking |
Country Status (1)
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| CN (1) | CN204310734U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666277A (en) * | 2021-08-20 | 2021-11-19 | 山东中诚机械租赁有限公司 | Jacking system protection device |
-
2014
- 2014-12-09 CN CN201420773858.7U patent/CN204310734U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113666277A (en) * | 2021-08-20 | 2021-11-19 | 山东中诚机械租赁有限公司 | Jacking system protection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 250012 Zhangqiu City, Ji'nan, Shandong Province Patentee after: SHANDONG DAHAN CONSTRUCTION MACHINERY Co.,Ltd. Address before: 250012 Zhangqiu City, Ji'nan, Shandong Province Patentee before: SHANDONG DAHAN CONSTRUCTION MACHINERY Co.,Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20180706 Address after: 528251 Guangdong Foshan Guicheng Nanhai District Ping Zhou Industrial Park victory East Road Patentee after: GUANGDONG DAHAN CONSTRUCTION MACHINERY Co.,Ltd. Address before: 250012 Zhangqiu City, Ji'nan, Shandong Province Patentee before: SHANDONG DAHAN CONSTRUCTION MACHINERY Co.,Ltd. |