Propelling device for finished steel strand bundle, and method for integrally propelling and passing
A technology of propulsion device and finished steel, which is applied in the erection/assembly of bridges, the processing of building materials, bridges, etc., can solve the problems of inconvenient processing, cumbersome construction steps, inconvenient use, etc. Deliver the effect of construction efficiency and convenient replacement
Active Publication Date: 2015-07-22
CHINA ACADEMY OF RAILWAY SCI CORP LTD +2
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Problems solved by technology
[0004] The above patents in the prior art have the following deficiencies: 1. There is a special threading head between the threading seat and the suspension ring. The threading head is a cone at the front end and a hollow cylinder at the rear end, and the corresponding structure has internal threads. inconvenient
2. At the construction site, it is necessary to connect the threading head to the threading seat first, and then connect the threading ring to the hollow cylinder at the rear end of the threading head. The construction steps are relatively cumbersome
3. The threading head and the threading ring need to be made into different specifications according to the number of steel strands. In this way, a set of threading head and threading ring of different specifications must be prepared at the construction site, which is inconvenient to use.
Method used
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Embodiment Construction
[0021] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.
[0022] figure 1 It is a structural schematic diagram of the present invention assembled on the finished steel strand harness; figure 2 yes figure 1 Left view of the middle marker board; image 3 yes figure 1 Partial sectional view in the middle; Figure 4 yes image 3 Enlarged view of part P in .
[0023] The present invention provides a propelling device for a finished steel strand harness. The propelling device comprises: a tightening ring 2, a propeller 3, and a marking plate 4; one end of the tightening ring 2 is connected to one end of the propeller 3, and 2. The inner hole at the other end fits the finished steel strand bundle 1 and is tightened on one end of the finished steel strand bundle 1; the other end of the propeller 3 is a cone; At both ends of the finished steel strand bundle 1, a plurality of through holes on the marking plate 4 ...
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The invention discloses a propelling device for a finished steel strand bundle, and a method for integrally propelling and passing. The propelling device comprises a banding ring, a propeller and mark plates, the banding ring is connected with the propeller, the banding ring is sleeved on the finished steel strand bundle and then tightly bands the finished steel strand bundle, the other end of the propeller is a cone; the mark plates are respectively arranged at the two ends of the finished steel strand bundle, and are sleeved on single steel strands; the outline dimensions of the banding ring and the propeller are smaller than the inner diameter of a construction duct. The method for integrally propelling and passing comprises the steps of 1, combing and knitting the finished steel strand bundle; 2, sleeving the mark plates at the two ends of the finished steel strand bundle; 3, squeezing the banding ring and the finished steel strand bundle into a whole; 4, connecting the banding ring and the propeller; and 5, using the propelling device to propel the banding ring and the propeller to integrally pass through a corrugated pipe duct with the finished steel strand bundle. The propelling device and the method have the beneficial effects that the banding ring and the propeller are fastened and connected into a whole, the resistance during passing is small, and the efficiency in integrally propelling and passing is improved.
Description
technical field [0001] The invention relates to a propelling device for a finished steel strand bundle and an integral propelling and threading method thereof. Background technique [0002] In the construction of buildings, roads and bridges, it is necessary to straighten out multiple prestressed steel strand bundles and penetrate them into the prepared prestressed tunnels, that is, corrugated pipes. When the finished steel strand bundle (also known as "combed bundle") is passed through the corrugated pipe, a special tractor needs to be arranged at the front end of the finished steel strand bundle. The quality of the structure design of the tractor and the convenience of application have a great influence on the quality of the construction. [0003] Chinese utility model patent 201120371131.2 discloses a threader for combing steel strands. The threader includes a threading seat and a threading head. The outer wall of the threading seat is threaded. The threading head includ...
Claims
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IPC IPC(8): E01D21/00E04G21/12
Inventor牛坡
OwnerCHINA ACADEMY OF RAILWAY SCI CORP LTD