A large-stroke telescopic mechanism
A telescopic mechanism and large stroke technology, applied in mechanical equipment, transmission devices, belts/chains/gears, etc., can solve the problem of limited introduction space and achieve the effect of improving rigidity
Active Publication Date: 2022-03-01
CGNPC INSPECTION TECH +3
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Problems solved by technology
The movement stroke of the conventional ball screw structure, synchronous belt structure, etc. often does not exceed the shortest length after contraction. When the introduction space of the equipment is limited, and the working space is much larger than the introduction space, these structures cannot meet the requirements
Method used
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Embodiment Construction
[0017] Below in conjunction with the embodiment shown in the accompanying drawings, the present invention is described in detail as follows:
[0018] Such as Figure 1-3 As shown, the large-stroke telescopic mechanism includes a middle component 21 , an upper component and a lower component respectively slidably connected to the middle component 21 , and a drive unit for driving the upper component and the lower component to move in reverse relative to the middle component 21 .
[0019] The middle layer assembly 21 includes a middle frame 24, the middle frame 24 includes two right-handed mounting plates 3 arranged in parallel, and two left-handed mounting plates 19 arranged in parallel, corresponding to the lower ends of the right-handed mounting plate 3 and the left-handed mounting plate 19 The fixedly connected middle-level mounting plate 20, and the emergency recovery port 14 installed on the middle-level mounting plate 20 for manually retracting the protruding upper-level ...
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The invention discloses a large-stroke telescopic mechanism, which comprises a middle-level component, an upper-level component and a lower-level component respectively slidingly connected with the middle-level component, a driving part for driving the upper-level component and the lower-level component to perform reverse movements relative to the middle-level component, and the middle-level The assembly includes a middle frame, and the driving part includes an upper screw assembly and a lower screw assembly connected to the peripheral surface of the middle frame sliding up and down, and a drive motor connected to the upper screw assembly or the lower screw assembly. The invention adopts a three-layer structure of synchronous transmission, and the telescopic range is twice that of the traditional telescopic mechanism; the reliability, motion accuracy and rigidity of the equipment are greatly improved; the emergency recovery port ensures that the emergency recovery can be realized in the case of failure of the electrical system.
Description
technical field [0001] The invention belongs to the field of nuclear power detection equipment, in particular to a large-stroke telescopic mechanism. Background technique [0002] In many fields such as nuclear power, there are always occasions where the introduction space is limited and a large range of movement is required. For example, in the non-destructive testing of the reactor pressure vessel top cover, the manhole door of the equipment introduction is 490mm wide and 675mm high, and the top The height that needs to be retracted inside the cover is 1850mm. The movement stroke of the conventional ball screw structure and synchronous belt structure often does not exceed the shortest length after contraction. When the introduction space of the equipment is limited and the working space is much larger than the introduction space, these structures cannot meet the requirements. The large-stroke telescopic mechanism of the present invention can solve such problems well. Co...
Claims
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IPC IPC(8): F16H25/20F16H25/24
CPCF16H25/20F16H25/24F16H2025/2053F16H2025/204F16H2025/2075F16H2025/2096F16H2025/2065
Inventor 张鹏飞吕天明王彬林戈曾晨明孔玉莹
Owner CGNPC INSPECTION TECH