CN202687820U - Constructional tower crane - Google Patents
Constructional tower crane Download PDFInfo
- Publication number
- CN202687820U CN202687820U CN 201220406036 CN201220406036U CN202687820U CN 202687820 U CN202687820 U CN 202687820U CN 201220406036 CN201220406036 CN 201220406036 CN 201220406036 U CN201220406036 U CN 201220406036U CN 202687820 U CN202687820 U CN 202687820U
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- China
- Prior art keywords
- lifting body
- jack
- tower crane
- lifting
- pawl
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- Expired - Fee Related
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Abstract
The utility model discloses a constructional tower crane which comprises a main rack body and a lifting body, wherein the lifting body comprises a control chamber, a lifting arm and a balance arm. The lifting body is assembled with a climbing mechanism which comprises a sleeve rack, an operation platform, creeping jaws, jacks, a hydraulic mechanism and a mounting platform. The jacks eject the lifting body with the sleeve rack as a support platform, and the lifting body is assembled with the creeping jaws and is fixed through the creeping jaws. The jacks are respectively arranged on two sides of the main rack body in symmetrical mode, and the hydraulic mechanism integrally supplies oil to the jacks to control the lifting. A standard knot of the tower crane is synchronously assembled with at least four creeping jaws, and the creeping jaws are arranged on two sides of the standard knot of the tower crane. Safety coefficient of the climbing mechanism of the constructional tower crane is greatly improved.
Description
Technical field
The utility model relates to a kind of tower crane for building.
Background technology
The tradition tower crane generally comprises main frame body and lifting body, lifting body comprises control cabin, crane arm and equilibrium arm, lifting body disposes lifting body, lifting body comprises stock, service platform, climb pawl, jack, hydraulic gear and erecting stage, jack withstands lifting body take stock as support platform, lifting body disposes climbs pawl to fix its position, wherein jack generally only arranges one, be in the rear side of main frame body, therefore climb pawl and only arranging two with the absolute altitude sync bit, in operation, in case jack or climb a damage in the pawl, be easy to cause upper mechanism moment downslide, so its lifting body safety factor is weak.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of tower crane for building, and the safety factor of its lifting body greatly improves.
For this reason, the tower crane for building that the utility model provides comprises main frame body and lifting body, lifting body comprises control cabin, crane arm and equilibrium arm, lifting body disposes lifting body, lifting body comprises stock, service platform, climb pawl, jack, hydraulic gear and erecting stage, jack withstands lifting body take stock as support platform, lifting body disposes climbs pawl to fix its position, the main frame body both sides arrange and are symmetrically arranged with respectively jack, jack is unified fuel feeding with the control lifting by same hydraulic gear, described lifting body disposes synchronously at least 4 at column crane mast section and climbs pawl, climbs the both sides that pawl is located at column crane mast section.
The main frame body both sides respectively have been symmetrical arranged a jack in the utility model, and lifting body has also configured 4 and climbed pawl, owing to climbing the increase of pawl, jack, have greatly reduced local steel supporting power
,Hoisting crane becomes a line to be supported, and compares a bit supporting of a jack of tradition, and its safety improves greatly, and the tower machine has reduced potential safety hazard in jacking and unloading process.
Description of drawings
The structural representation of the tower crane for building that Fig. 1 the utility model provides.
The specific embodiment
As shown in Figure 1, the tower crane for building that the utility model provides comprises main frame body 1 and lifting body, lifting body comprises control cabin, crane arm and equilibrium arm, lifting body disposes lifting body, lifting body comprises stock 5, service platform 6, climb pawl 7, jack 8, hydraulic gear 9 and erecting stage 10, jack 8 withstands lifting body take stock 5 as support platform, lifting body disposes climbs pawl 7 to fix its position, described main frame body 1 both sides arrange and are symmetrically arranged with respectively jack 8, jack 8 is unified fuel feeding with the control lifting by same hydraulic gear 9, the turnover oil place of jack 8 all is equipped with oil mass limiter, lifting body disposes synchronously at least 4 at column crane mast section and climbs pawl 7, climbs the both sides that pawl 7 is located at column crane mast section.
With reference to shown in Figure 1, in order further to improve safety factor, four feet 11 bottoms of main frame body 1 bottom are provided with resistance strain gage, resistance strain gage is connected with central process unit on being arranged at main frame body 1, central process unit connects audible alarm unit, the pressure value that records when the resistance strain gage at each feet 11 place occur indivedual feet pressure surpass another feet pressure 50% the time, central process unit sends signal to audible alarm unit, audible alarm unit sends alarm sound.When indivedual feet 11 pressures far surpass another feet 11, often be exactly the omen that the tower machine topples through test, especially exceed 50% when above, above-mentioned setting can be got rid of the chance of hidden danger or escape to the field staff.
Claims (3)
1. tower crane for building, comprise main frame body (1) and lifting body, lifting body comprises control cabin, crane arm and equilibrium arm, described lifting body disposes lifting body, lifting body comprises stock (5), service platform (6), climb pawl (7), jack (8), hydraulic gear (9) and erecting stage (10), described jack (8) withstands lifting body take stock (5) as support platform, described lifting body disposes climbs pawl (7) to fix its position, it is characterized in that: described main frame body (1) both sides arrange and are symmetrically arranged with respectively jack (8), jack (8) is unified fuel feeding with the control lifting by same hydraulic gear (9), described lifting body disposes synchronously at least 4 at column crane mast section and climbs pawl (7), describedly climbs the both sides that pawl (7) is located at column crane mast section.
2. tower crane for building according to claim 1 is characterized in that: the turnover oil place of described jack (8) all is equipped with oil mass limiter.
3. tower crane for building according to claim 1 and 2, it is characterized in that: four feets (11) bottom of described main frame body (1) bottom is provided with resistance strain gage, resistance strain gage is connected with central process unit on being arranged at main frame body (1), central process unit connects audible alarm unit, the pressure value that the resistance strain gage of locating when each feet (11) records occur indivedual feet pressure surpass another feet pressure 50% the time, central process unit sends signal to audible alarm unit, and audible alarm unit sends alarm sound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220406036 CN202687820U (en) | 2012-08-16 | 2012-08-16 | Constructional tower crane |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220406036 CN202687820U (en) | 2012-08-16 | 2012-08-16 | Constructional tower crane |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202687820U true CN202687820U (en) | 2013-01-23 |
Family
ID=47543468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220406036 Expired - Fee Related CN202687820U (en) | 2012-08-16 | 2012-08-16 | Constructional tower crane |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202687820U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102807167A (en) * | 2012-08-16 | 2012-12-05 | 温州东瓯建设集团有限公司 | Building tower crane |
| CN103935916A (en) * | 2014-04-25 | 2014-07-23 | 中联重科股份有限公司 | Anti-over-inclination early warning method and anti-over-inclination early warning device for tower crane |
-
2012
- 2012-08-16 CN CN 201220406036 patent/CN202687820U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102807167A (en) * | 2012-08-16 | 2012-12-05 | 温州东瓯建设集团有限公司 | Building tower crane |
| CN103935916A (en) * | 2014-04-25 | 2014-07-23 | 中联重科股份有限公司 | Anti-over-inclination early warning method and anti-over-inclination early warning device for tower crane |
| CN103935916B (en) * | 2014-04-25 | 2016-07-27 | 中联重科股份有限公司 | Anti-over-inclination early warning method and anti-over-inclination early warning device for tower crane |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130123 Termination date: 20160816 |