Duct piece turning platform
A technology for flipping platforms and segments, applied in ceramic molding machines, manufacturing tools, etc., can solve problems such as complex processing technology, not easy to use, and influence on work stability, and achieve environmental pollution, low noise, and power consumption. little effect
Inactive Publication Date: 2014-06-25
李民峰
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Problems solved by technology
[0004] (1) Factors such as easy oil leakage in the hydraulic system affect the stability and correctness of the movement, so that the hydraulic transmission cannot guarantee a strict transmission ratio;
[0005] (2) Hydraulic transmission is sensitive to changes in oil temperature. When the temperature changes, the viscosity of the liquid changes, causing changes in motion characteristics and affecting the stability of work, so it is not suitable for working under environmental conditions with large temperature changes;
[0006] (3) In order to reduce leakage and meet certain performance requirements, the manufacturing precision of hydraulic components is required to be high, and the processing technology is relatively complicated;
[0007] (4) Hydraulic transmission requires a separate energy source, which is not as convenient as a power supply;
[0008] (5) If the hydraulic system fails, it is not easy to check and eliminate
Method used
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[0022] see Figure 1-2 , this implementation case includes a supporting base 1 and a reversing frame 2, the supporting base 1 is provided with a rotating shaft 11 connecting and supporting the reversing frame 2, and an overturning drive device connected to the rotating shaft 11 of the reversing frame 2. The two rotating shafts 11 are arranged in the bearing housing 5 provided by the supporting base 1, and support the turning frame 2 from both sides. The center of gravity of the turning frame 2 is located on the shaft center of the rotating shaft 11. There is an output shaft connected to the drive shaft 11. In order to facilitate the connection and installation, the rotating shaft 11 is connected with the transmission shaft 4, the transmission shaft 4 is keyed to the hollow output shaft, and the support base 1 is provided with two travel switches that cooperate with the starting position and the terminal position of the turning frame 2.
[0023] In this implementation case, i...
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Abstract
The invention discloses a duct piece turning platform comprising a support base and turning frames. Revolving shafts and a turning driving device are arranged on the support base, wherein the revolving shafts are connected with and support the turning frames, and the turning driving device is connected with the revolving shafts of the turning frames; and as an improvement, the centers of gravity of the turning frames are positioned on the axes of the revolving shafts, and the driving device comprises a bevel gear worm gear reducer which is provided with an output shaft which is connected with the revolving shafts and used for driving the revolving shafts. According to the invention, the bevel gear worm gear reducer directly drives the turning frames to turn, and after mature technical calculation, as the center of gravity of a duct piece on the turning frames is just on the center line of a transmission shaft, the power needed for turning is small. When being used in normal procedures, bevel gear worm gear reducer transmission does not need to be maintained frequently, is free of the phenomena of oil leakage, unstability of hydraulic pressure, cracking of an oil pipe and the like compared with hydraulic transmission, is lower in noise compared with the hydraulic transmission, is less in electricity consumption, and does not pollute the environment.
Description
technical field [0001] The invention relates to a subway segment turning platform. Background technique [0002] At present, in many large and medium-sized cities, fast and convenient subway transportation has become the main part of daily traffic, and urban subway construction is in a stage of rapid development. Segments, as important prefabricated components in subway tunnel construction, need to be used in large quantities. The segment is in the shape of an arc tile, with a diameter of less than 7 meters and a height of less than 1.5 meters. Each piece can weigh about 4 tons. The volume and weight are relatively considerable. The segment is turned over 90 degrees so that the inner arc faces the sky for safe transportation. So it must be done with special flipping equipment. [0003] Existing overturning equipment uses hydraulic technology, such as the "segment overturning machine" disclosed in Chinese Utility Model No. 200820049097.5, a support plate is provided on the...
Claims
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IPC IPC(8): B28B21/92
Inventor 李民峰余晓清倪秒华黄国龙单林扬
Owner 李民峰