Position compensation extendable-and-retractable type boarding trestle hydraulic system

A hydraulic system, telescopic technology, applied in the direction of fluid pressure actuation device, servo motor, servo motor assembly, etc., can solve the problems of difficult overlap, easy damage, and difficulty in ensuring the position of the gangway and the ship

Active Publication Date: 2018-06-01
SOUTH CHINA MARINE MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure adjusts the position of the platform through active wave compensation, and then realizes the lap joint. However, since the ship is shaking, it is difficult to ensure the position between the gangway and the sh...

Method used

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  • Position compensation extendable-and-retractable type boarding trestle hydraulic system
  • Position compensation extendable-and-retractable type boarding trestle hydraulic system
  • Position compensation extendable-and-retractable type boarding trestle hydraulic system

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Embodiment Construction

[0069] The present invention will be further described in detail below with reference to the drawings and specific embodiments.

[0070] Such as Figure 1 to Figure 6 As shown, the position compensation telescopic boarding trestle includes a base 11, a slewing platform 12, a telescopic trestle 13, a landing device 14, a rotary hydraulic motor 10, a luffing cylinder 20, a position compensation control system 4, and a position compensation step bridge hydraulic system 5.

[0071] Such as Picture 9 As shown, the rotary platform 12 includes a rotatably mounted ring gear 121 on the base 11, a rotary drive gear 122 mounted on the output shaft of the rotary hydraulic motor 10, and a rotary seat 123 fixed on the ring gear 121. The hydraulic motor 10 is mounted on the base 11. Two or more rotary hydraulic motors 10 are provided. There is an accommodating cavity 1231 in the slewing seat 123, which can be used to place hydraulic systems such as control systems and hydraulic oil tanks, whic...

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Abstract

The invention discloses a position compensation extendable-and-retractable type boarding trestle hydraulic system. The position compensation extendable-and-retractable type boarding trestle hydraulicsystem comprises a power system, a rotation hydraulic system, an extending-and-retracting hydraulic system and variable amplitude hydraulic systems. The power system comprises a hydraulic oil tank, main pump sets and a high-low pressure pump set. The rotation hydraulic system comprises a rotation selection valve, a direction and speed control valve, a brake control valve, a mode selection valve, afirst balance valve, a second balance valve, a two-way direction valve, a sequence valve, a hydraulic motor and brakes. The extending-and-retracting hydraulic system comprises an extending-and-retracting selection valve, a direction and speed control valve, a brake control valve, a mode selection valve, a first balance valve, a second balance valve, a two-way direction valve, a sequence valve, ahydraulic motor and an extending-and-retracting brake. Each variable amplitude hydraulic system comprises a variable amplitude selection valve, a variable amplitude direction and speed control valve,a variable amplitude energy accumulator control valve, a variable amplitude energy accumulator switch valve, a variable amplitude energy accumulator oil charging control valve, a plunger type energy accumulator and a variable amplitude oil cylinder. By means of the system, manual overlapping, active compensation and servo compensation can be achieved, and footbridges can be overlapped reliably andsafely.

Description

Technical field [0001] The invention relates to hydraulic systems. Background technique [0002] The bridge or trestle bridge is mainly used to transport people or goods. On land, the construction of the bridge is relatively simple, but the bridge used to transport people and materials between two ships at sea is relatively difficult to construct. Because the ship moves with each other, the bridge is generally built on a ship. If it needs to be used, a bridge is set between the two ships by overlapping. In the lap process, in order to achieve better overlap, the relative position between the bridge and another ship needs to be considered, otherwise the bridge and the ship will collide due to the floating of the ship; after the overlap is completed, It is also necessary to consider the relative position between the two ships. According to the relative position of the two ships, let the bridge be in a passive compensation state, so that normal use can be ensured; in addition, in a...

Claims

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Application Information

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IPC IPC(8): F15B11/17F15B13/02F15B1/02
Inventor 梁兆环安万平王江陈懿叶衍强
Owner SOUTH CHINA MARINE MACHINERY
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