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Steel Truss Girder Bridge Launching Gantry

Bridge girder crane is suitable for highway construction in mountainous areas, and can meet the requirements of large slope, small radius curved bridge, inclined bridge and tunnel opening bridge.In the same way, it is more convenient to work in plain areas where conditions are good.

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Description

Products Description

QJ bridge erecting machine is a new type of bridge erecting machine.The bridge erecting machine is a kind of equipment for hoisting and

erection of steel track type precast girder with wide operating range, excellent performance, convenient operation and safe structure.

The bridge erecting machine is a kind of equipment for hoisting and erection of steel track type precast girder with wide operating range,

excellent performance, convenient operation and safe structure. This product is suitable for highway construction in mountainous areas,

and can meet the requirements of large slope, small radius curved bridge, inclined bridge and tunnel opening bridge.In the same way,

it is more convenient to work in plain areas where conditions are good. This product use for - 20 ~ 40 ℃, no fire, no explosion, and no

corrosive medium environment work.

Main girder

Be welded of steel plates, connected by high-strength precision bolt. There are sliding rail for trolley to travel upper the girder which is fixed on outrigger by hightension

precision bolt.

Travelling mechanism

Consist of driving gear box and passive wheel box

a.The driving gear box supplys power to realize the crane's travelling

b.Passive wheel box lacks transmission structure such as dynamo, reducer and a pair of exposed gear

Trolley with hoist

Be made up of trolley frame, winch and pulley block

a.Trolley frame welded of steel plate is the loading and travelling mechanism of trolley with hoisting

b.Winch is the lifting mechanism of trolley..when it works, wire rope affects the pulley as rising and falling movement, which makes suspended objects lifting and Lowering

Cab

a. Glass window through which one can watch overall working condition is installed in the front and two sides of the cab

b.Electric cabinet as a group of independent cabinet , fixed out of cab is connected by control cable and linkage station which is set up in the cab

1.The first domestic creating is triangle beam, it has many advantages, such as light weight, high stiffness, low deflection, and high wind-resistance .

2.Unique steel pin connection, which is not only firm, but also easy to install.

3.Flexible steel legs, convenient to disassemble and transfer.

4.The frequency-converter can be installed according to user's requirements.

5.The span can be within 60 meters, the height of hoisting is under 20 meters, the weight of hoisting is under 200 tons per hoist.

6.It is widely used in highway and railway construction.

7.Tonnage Customize ,Industrial Customize.

Products parameters

comparison of product parameters

No.	Item		Specification
1	Safe working Load		100T
2	Span(gauge)		45M
3	Lifting Height		7M
4	Working Class		ISO A3 / FEM 1Am
5	Longtitudinal slope		≤±8%
6	Cross slope		≤±5.3%
7	Angle of bridge		≤45°
8	Lifting pulley ratio		14
9	Total power		≈50kw
10	Lifting speed		0.95m/min
11	Winch tranverse speed		0-1.5m/min
12	Winch surge velocity		3m/min
13	Crane transverse speed		1.5m/min
14	Crane surge velocity		3m/min
15	Winch	motor	YZR160L-6
16		brake	YWZ-300/45
17		wirerope	6-36-1,φ21.5
18	Transverse mechanism	motor	YEJ90L-A / 1.5KW/1500rpm
19		gearbox	XLED53-391
20		gear drive	46/17
21		winch wheel	φ400
22	Velocity mechanism	motor	YEJ100L-A/ 2.2KW/1500rpm
23		gearbox	XLED53-187
24		gear drive	46/17
25		winch wheel	φ400