| 品牌：鴻達 | 型號：QTZ300(7031) | 起重機類型：塔式起重機 |
| 操作形式：手動 | 結構形式：固定式 | 跨度：140（米） |
| 懸臂長度：70（米） | 有效起升高度：240（米） | 額定起重量：12（噸） |
| 大車運行速度：80（m/min） | 額定起重力矩：310（kN.m） | 最大回轉速度：.7（r/min） |
1. General
TIE LI SHI QTZ300（T7031/12) tower crane is latest designed, adopts conversion speed governing technique and satisfies GB/T5031《tower crane》and GB5144《Safe regulation of tower crane》etc. It is manufactured by Shandong Hongda Group based on more than two decades of tower crane design and production experiences. It is an upper slewing and self-lifting tower crane with a horizontal jib. The main features are as follows:
1) It has advantages of advanced technical parameters, larger load moment, high hoisting, large working radius, wide working space and high efficiency.
2) The entire machine is of fine shape, light steel structure and superior materials, and given such pretreatment as dressing, rust-resisting and the blasting, etc. The modular tool combination welding and machining work are adopted in standard section with sound interchangeability. The cross-section of jib can be changed with light dead weight and weak wind resistance. The cat head rakes forward, with simple force. the pin connection and high-tensile bolt connection are adopted, with convenient mounting and dismantling. The side-mounted cabin with wide visual field is comfortable, easy operation and the driver's seat can be freely adjusted according to requirements.
3) The machine has such working types as stationary, attached, climbing inside the building, etc., which can meet the needs of the constructions of urban medium and high-rise buildings, factory buildings, power stations, dams and bridges, etc.
4) The hoisting mechanism can obtain the desired hoisting speed and achieve the slow positioning of a load by conversion speed governing. Slewing and trolley travelling mechanisms can steadily operate and be exactly in position by conversion stepless speed regulation. The hydraulic coupling is used in travelling mechanism in order to start and brake smoothly and steadily.
5) The electrical control system adopts the international universal type and the low voltage electrical appliances including imported electrical components, which are modular combination and rail-clamping installation. It is controlled by two cross-shaped command controllers and button switches centralized in the cabin. The electrical control cabinet of the machine is connected with the power supply for 380V-440V(50Hz-60Hz).
6）With the complete safety devices, the machine has multi-function of monitoring display moment, weight, radius and height as well as warning, self-locking etc.
2.塔機性能和技術指標
2.1技術性能參數(表2.1)
2.2起重性能表(表2.2)
2.3供電要求
電動機功率：固定式：銘牌功率98.5千瓦
移動式：銘牌功率128.5千瓦
工作功率88千瓦
供電容量： 160KVA
*供電電壓： 380伏(允差±10%)
*供電頻率： 50赫茲
*特殊訂貨可滿足采用220V、440V和60HZ的國傢和地區。
Performance and technical index for tower crane
2.1 Technical performance parameter ( table 2.1 )
2.2 Hoisting performance table ( table 2.2 )
2.3 Power supply requirements
motor power: Stationary: rated power 98.5 kw
Traveling: rated power 128.5 kw
working power 88 kW
supply capacity: 160 KVA
*supply voltage: 380V ( alloweddeviation±10 % )
supply frequency: 50Hz
A special order for220V, 440V and 60Hz in countries and regions
表2.1技術性能表 Table 2.1. Technical performance list
機構工作級別 Working grades for mechanism | 起升機構Hoisting mechanism | M5 | ||||||||||
回轉機構Slewing mechanism | M4 | |||||||||||
變幅機構Trolley travelling mechanism | M4 | |||||||||||
行走機構Travelling mechanism | M3 | |||||||||||
起升高度 Hoisting height (m) | 倍率 Multiplying
| 行走式 travelling |
固定式 Undercarriage stationary
| 附著式 Attached | 內爬式 Inside climbing | |||||||
a=2 | 54 | 50 | 221 | 221 | ||||||||
a=4 | 54 | 50 | 110 | 110 | ||||||||
最大起重量（t） Max. hoisting capacity (t) | 12 | |||||||||||
幅度 Radius (m) | 最大幅度Max. radius | 70 | ||||||||||
最小幅度Min. radius | 2.7 | |||||||||||
起升機構 Hoisting mechanism | 倍率 Multiplying | a=2 | a=4 | |||||||||
起重量(t) Hoisting capacity(t) | 3 | 6 | 6 | 12 | ||||||||
速度（m/min） Speed (m/min) | 0~102 | 0~51 | 0~51 | 0~25.5 | ||||||||
功率(KW) Power (kW) | 65 | |||||||||||
變幅機構 Trolley travelling mechanism | 速度（m/min） Speed (m/min) | 0~80 | ||||||||||
堵轉力矩(N.m) Moment (N.m) | 95 | |||||||||||
回轉機構 Slewing mechanism | 速度（r/min） Speed (m/min) | 0~0.7 | ||||||||||
堵轉力矩(N.m) Moment (N.m) | 2×95 | |||||||||||
行走機構 Travelling mechanism | 速度（m/min） Speed (m/min) | 20 | ||||||||||
功率(KW) Power (kW) | 4×7.5 | |||||||||||
頂升機構 Climbing mechanism | 速度(m/min) Speed (m/min) | 0.46 | ||||||||||
功率(kw) Power (kW) | 11 | |||||||||||
| 液壓系統額定工作壓力(Mpa) Rated working pressure for hydraulic system (Mpa) | 30（外爬Outside climbing） 35（內爬Inside climbing） | ||||||||||
平衡重 Counter-weight | 起量臂長 Jib length（m） | 45 | 52.5 | 60 | 65 | 70 | ||||||
平衡臂長（m） Counter-jib length(m) | 16 | 16 | 20 | 20 | 20 | |||||||
平衡重（t） Counter-weight | 24 | 25.8 | 22 | 24 | 25.8 | |||||||
總功率（KW） Total power(KW) | 117.5 | |||||||||||
輪距×軸距（m） Wheel×axle gauge(m) | 6.5×6.5 | |||||||||||
工作溫度（℃） Operating temperature(℃) | -20~+40 | |||||||||||
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