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Derrick erected by positioning three pairs of holding poles in straight shape

A technology of holding a pole and a derrick, which is applied in the field of erecting a derrick at a "one"-shaped station with three pairs of poles, can solve the problem of insufficient strength of the derrick, and achieve the effect of reducing the safety risk of lifting and improving the bearing capacity.

Active Publication Date: 2010-12-22
MECHANICAL & ELECTRICAL INSTALLATION ENG CO LTD OF CHINA COAL NO 3 CONSTR GRP CORP LTD
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Problems solved by technology

[0007] 1. Firstly, according to the maximum non-detachable weight and height of the derrick, carry out force analysis and calculation, select three pairs of poles with the same model and height, and solve the technical problem of insufficient strength of the second pair of poles for hoisting the derrick

Method used

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  • Derrick erected by positioning three pairs of holding poles in straight shape
  • Derrick erected by positioning three pairs of holding poles in straight shape
  • Derrick erected by positioning three pairs of holding poles in straight shape

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Embodiment Construction

[0036] 1. First of all, carefully inspect the site conditions of the construction site, determine the assembly position of the derrick 6 and the assembly position of the three pairs of poles 1 on the ground, and determine the overall construction plan ( Figure 6 ).

[0037] 2. Determine the maximum non-removable weight, center of gravity, height, and lifting force of the derrick 6 according to the calculation and construction process requirements, and select three pairs of poles 1 with the same specification, the same cross-section, and the same height.

[0038] 3. Near the connection position between the derrick foundations 7, three chassis 14 are respectively arranged. The lower part of the chassis 14 is arranged with I-beams 18, the middle part is paved with lumber 17, and the upper part is laid with flat steel plates 16 of δ20mm~δ30mm. 14 Placed on a flat and compacted soil layer, the contact area should be sufficient to ensure that the pole 1 does not sink or unevenly si...

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Abstract

The invention provides a derrick (6) erected by positioning three pairs of holding poles (1) in a straight shape in order to solve the mainly technical problem of erecting a derrick (6) by using holding poles (1) in the construction for installing the derrick (6) on a vertical shaft of coal mines or non-coal mines, particularly solve the difficult technical problem that the strength of a pair of holding poles or two pairs of holding poles is not enough to hoist the heavy derrick (6) safely. By arranging the three pairs of holding poles (1) in a straight shape in the vicinity of the position of a derrick foundation (7) line, the three pairs of holding poles can be stressed evenly at the same time, thus bearing the hoisting weight of the derrick (6) together.

Description

Technical field: [0001] In coal mines and non-coal mine shaft derrick installation and construction, it is often necessary to use poles to erect box-shaped steel structure derricks. Background technique: [0002] In the actual construction of the four-column box-shaped derrick, the derrick is often divided into two large pieces from the middle position for assembly. The first erected piece is called the "main inclined frame", and the second erected piece is called the "auxiliary inclined frame", collectively called the derrick . Then the main and auxiliary inclined frames are welded together in the air to form a whole. When erecting steel structure derricks in coal mines (or non-coal mines), the usual construction practice is to select the appropriate derrick and determine the number of derricks according to the height and weight of the derrick and the force strength of the derrick. When the derrick is small and one pair of poles can meet the lifting capacity, choose one p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E04H12/34E04H12/26
Inventor 阙胜利黄庆宏张鲁鲁廖鸿志曹椿梅余峰
Owner MECHANICAL & ELECTRICAL INSTALLATION ENG CO LTD OF CHINA COAL NO 3 CONSTR GRP CORP LTD
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