Tube expander with the adjustable central distance
A technology of center distance and tube expansion, which is applied in the field of tube expanders with adjustable center distance, which can solve the problems of refrigerant leakage and inability to meet the expansion requirements of heat exchangers, etc.
Active Publication Date: 2017-02-01
ZJMECH TECH +1
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Problems solved by technology
At present, the center distance of the mainstream tube expanders is fixed, which cannot meet the expansion requirements of some heat exchangers whose center distance is not fixed.
[0003] Although a single straight tube expansion tube can be used for heat exchanger expansion tubes whose center distance is not fixed, but this method requires additional welding of small U-bends, and at the same time it is easy to cause refrigerant leakage
Method used
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[0020] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in conjunction with specific embodiments of the present application and corresponding drawings. Apparently, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0021] The technical solutions provided by various embodiments of the present application will be described in detail below in conjunction with the accompanying drawings.
[0022] refer to figure 1 , according to one embodiment of the present application, an exemplary tube expander with adjustable center distance includes a gantry 1, a flarer 2, a hy...
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The invention relates to a tube expander head with the adjustable central distance. The tube expander head comprises two sets of tube expanding components and a central distance adjusting device connected with the two sets of tube expanding components through two sets of suspension connecting parts; the central distance adjusting device comprises a frame, at least one guide rod and guide rails, wherein the guide rods are arranged in the direction roughly perpendicular to the longitudinal axes of the tube expanding components and are provided with left rotation double-direction threads and right rotation double-direction threads; the two sides of each guide rod are each provided with at least one guide rail; the guide rods and the guide rails extend to spread over the length of the frame and are fixed to the two ends of the frame; each guide rod is provided with two adjusting nuts with nut bases; a sliding block sliding along one guide rail is arranged at the position, flush with each nut base, of each guide rail; one end of each guide rod is further provided with a rotating component used for rotating the guide rod. The invention further provides a tube expander with the tube expander head. The blank of a variable center heat exchanger tube expansion is filled up through the tube expander with the adjustable central distance.
Description
technical field [0001] The invention relates to a tube expander, in particular to a tube expander with adjustable center distance. Background technique [0002] During the production process of the heat exchanger, it is necessary to closely combine the metal tube and the fins fitted on it, so as to ensure good heat transfer and conduction, and it is light in weight and has a long service life. At present, the center distance of the mainstream tube expanders is fixed, which cannot satisfy some heat exchangers whose center distance is not fixed. [0003] Although a single straight tube expansion tube can be used for the expansion tube of the heat exchanger whose center distance is not fixed, but this method requires additional welding of small U bends, and at the same time it is easy to cause refrigerant leakage. Contents of the invention [0004] Aiming at the defects of the prior art, the present invention provides a tube expander head with adjustable center distance and ...
Claims
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IPC IPC(8): B21D53/06B21D39/20B21D41/02
CPCB21D39/20B21D41/026B21D53/06
Inventor 宋敬儒宋晓陈马林林
Owner ZJMECH TECH