Mine using great steel derrick lifting special tool
A steel derrick, large-scale technology, applied in the direction of cranes, drilling equipment, support devices, etc., can solve the problems of safety hazards, derrick stress, etc., and achieve the effects of uniform force, convenient installation, and simple structure
Active Publication Date: 2010-03-10
CHINA COAL NO 3 CONSTR GRP +1
View PDF3 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] 3. According to the traditional method, when four stabilizers are used for hoisting, there is no necessary force logic connection between the four vehicles, and the force of the stabilizer is determined by observing the sag of the wire rope based entirely on the experience of the operator. In this way It is easy to cause local force on the derrick, forming a safety hazard
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] 1. Implementation of the pole head fixture
[0032] in the attached figure 1 In the process, the pole head clamp (3) is processed first, and transported to the construction site. Before the pole head is erected, the pole head clamp (3) is connected to the pole head, and the required The block of pulleys used can carry out the normal wire rope operation after the pole (6) is erected. When the mast head clamp is hung on the pole, it is ensured that the mast head clamp (3) can rotate along with the lifting angle of the derrick during the erection process of the derrick (5).
[0033] The pole head clamp is a tool specially used to connect the pole head and the pulley when lifting the derrick in the mine. Guaranteed to be an interference fit, the fixture can swing freely.
[0034] 2. Folding implementation
[0035] in the attached figure 2 In accordance with the design requirements, during civil construction, the fixed hinge (1) pre-embedded slab is embedded in the fou...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
When erecting a steel structure headframe, by traditional operation method, when using a tackle, the tackle is fixed on a holding rod by a steel wire rope and easily rotates and wrings, and causes uneven stress of the rope; therefore, a headframe can not be accurately hoisted to a correct position, which thus brings about bigger security hidden trouble. A main inclined frame part is fixed by a leg-stumble ground anchor to overcome horizontal thrust of the main inclined frame; but larger emplacement deviation is caused on the main inclined frame; when hoisting by using a plurality of steady vehicles, discrepant stress of each vehicle can create lopsidedness of a single vehicle and cause safety accident. In order to remove the three technological obstacles, in operation process of 60 headframes in recent 20 years, three technologies of a special fixture for holding a rod head, a steel foldout and a balance rope threading method and equipments (1. the special fixture for holding a rob head; 2. the foldout; 3. the balance rope threading method) are progressively researched and developed. Hidden troubles in the process of erecting the headframe are thoroughly overcome.
Description
1. Technical field [0001] The patent of the invention relates to the invention and development of a large-scale steel derrick hoisting tool in the construction of coal mines and non-coal mines, which can safely, accurately and efficiently complete hoisting tasks. This technology is mainly applied to the hoisting of large mine derricks. For the hoisting of other large parts similar to the derrick, this technology can be referred to. 2. Background technology [0002] 1. According to the traditional method, the pole head and the pulley are connected by a wire rope sleeve. This connection method is likely to cause the wire rope sleeve to be twisted, rotated, and uneven in force, and then cause the block block to rotate in the air and affect the lifting. When using multiple blocks due to structural reasons, the steel wire rope sleeve cannot be put on the pin shaft of the holding pole, which can easily cause broken strands and broken wires. [0003] 2. According to the tradition...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): E21B15/00B66C23/62
Inventor 李惠民张炳辉张鲁鲁黄庆宏廖鸿志
Owner CHINA COAL NO 3 CONSTR GRP