A rack and pinion lifting mechanism
A lifting mechanism and rack technology, applied in the field of rack and pinion lifting mechanism, can solve problems such as difficulty in maintenance of load sensors, and achieve the effect of reducing difficulty
Active Publication Date: 2017-12-01
WUHAN MARINE MACHINERY PLANT
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Problems solved by technology
[0003] In order to solve the problem of difficult maintenance of the load sensor in the existing rack and pinion lifting mechanism, the embodiment of the present invention provides a rack and pinion lifting mechanism
Method used
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Embodiment
[0024] A rack and pinion lifting mechanism provided by an embodiment of the present invention, such as figure 1 and 2 As shown, the lifting mechanism includes: climbing gear 1, rack 2, gear box 3 and mounting frame 4, climbing gear 1 is coaxially installed on the output shaft 31 of the gear box 3, and the output shaft 31 of the gear box 3 is inserted into the installation In the frame 4, the climbing gear 1 is meshed with the rack 2. The lifting mechanism also includes a load detection assembly 5. The load detection assembly 5 includes a cantilever 51, an oil cylinder 52 and a sensor 53 for detecting the internal pressure of the oil cylinder 52. One end of the cantilever 51 is connected to the internal pressure of the oil cylinder 52. The housing 32 of the gear box 3 is fixedly connected, the other end of the cantilever 51 is hinged to the top of the oil cylinder 52, the bottom end of the oil cylinder 52 is hinged to the mounting frame 4, and the side wall of the mounting fram...
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The invention discloses a gear and rack lifting mechanism, and belongs to the technical field of lifting equipment. The lifting mechanism comprises a climbing gear, a rack, a gear box and a mounting frame; the climbing gear is coaxially mounted on an output shaft of the gear box; an output shaft of the gear box is inserted in the mounting frame; and the climbing gear is engaged with the rack. The lifting mechanism further comprises a load detecting component; the loading detecting component includes a cantilever, an oil cylinder and a sensor for detecting inner pressure of the oil cylinder; one end of the cantilever is fixedly connected with a shell of the gear box, and the other end of the cantilever is hinged to the top end of the oil cylinder; the bottom end of the oil cylinder is hinged with the mounting frame; a mounting sleeve is arranged on the side wall of the mounting frame, and includes a limiting plate, a bearing sleeve and a bearing; a limiting flange matched with the limiting plate is mounted at the top end of the output shaft; the output shaft is inserted in the mounting sleeve; the bearing sleeve is mounted on the outer side of the limiting plate; the bearing coats the output shaft; and the bearing is positioned between the limiting plate and the limiting flange. The lifting mechanism reduces the sensor maintenance difficulty.
Description
technical field [0001] The invention belongs to the technical field of lifting equipment, in particular to a rack and pinion lifting mechanism. Background technique [0002] The self-elevating offshore platform is a common lifting equipment for offshore engineering, which realizes the lifting of the platform and the legs through the rack and pinion lifting mechanism. Common rack and pinion lifting mechanisms mainly include climbing gears, racks, and load sensors. Through the meshing of climbing gears and racks, the lifting action of the rack and pinion lifting mechanism is realized. When the rack and pinion lifting mechanism performs the lifting action, The load sensor monitors the load on the rack and pinion lifting mechanism in real time. However, because the jack-up offshore platform has been in a harsh working environment for a long time, the load sensor is very easy to damage. Once the load sensor is damaged, the entire rack and pinion lifting mechanism must be disasse...
Claims
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IPC IPC(8): B66F7/12B66F7/28
CPCB66F7/12B66F7/28B66F2700/00
Inventor 毛炳坤田崇兴程文池朱正都王鑫磊赵世琏
Owner WUHAN MARINE MACHINERY PLANT