Background technology
Along with the exploitation of ocean, increasing ocean platform and other marine structures have obtained building and using.Wherein lift platform is few because of steel using amount, cost is low and the efficient advantages of higher has obtained extensive use, and it almost can continue lifting under the various sea situations of design, but considers from energy-conservation and safety work aspect, also has two subject matters.When first platform descends, need configuration resistor box power consumption device, a large amount of decline potential energy could be consumed,, the hydraulic oil heating is lost in vain perhaps by the hydraulic throttle form; It two is that brake easily takes place in the platform decline process is out of control, causes broken teeth, and platform structure is impaired, jeopardizes platform safety, for example, two platforms just took place in zone, the Bohai Sea in recent years glide the serious safety problem out of control of braking suddenly.A kind of energy-saving safeguard device that is used for lifting platform has been proposed for this reason.
Patent of the present invention is just for realizing what above-mentioned requirements designed, purpose is to make full use of the potential energy in the platform decline, the heating loss of minimizing system, it is out of control and the risk that occurs reaches the purpose that the potential energy that effectively platform descended transforms storage to reduce brake in the platform decline process.
The patent of invention content
The technical problem that patent of the present invention will solve provides a kind of energy-saving safeguard device that is used for lifting platform, this device can transform the potential energy in the platform decline process storage effectively and avoid because of the brake risk that occurs out of control in the platform decline process, and the purpose of patent of the present invention is to provide a kind of energy-saving safeguard device for lifting platform.
For addressing the above problem, patent of the present invention is achieved in that patent of the present invention mainly comprises lifting pole, tooth bar, pinion, gearbox, shaft coupling, hydraulic pump, oil-absorbing pipeline, pressure pipeline, fuel tank, unidirectional proportional throttle valve, pressure-regulating valve, holds fluid cylinder, gas compressed package, pressure sensor, monitoring unit, lifting pole, tooth bar, pinion, axle, gearbox, shaft coupling, hydraulic pump, unidirectional proportional throttle valve, holds fluid cylinder and gas compressed package and is connected before and after successively; Hydraulic pump is connected with fuel tank by oil-absorbing pipeline, is connected with unidirectional proportional throttle valve, pressure sensor and pressure-regulating valve by pressure pipeline; Monitoring unit is connected with pressure sensor with unidirectional proportional throttle valve; Be evenly equipped with tooth bar along lifting pole.In platform decline process, by platform weight-driven pinion rotation, drive hydraulic pump by the gearbox speedup, to holding fluid cylinder pumping pressure oil, implementation platform decline potential energy converting and energy is the oil liquid pressure energy, simultaneously, when platform decline generation brake is out of control,, realize the oil pressure adjustment automatically by pressure-regulating valve, unidirectional ratio adjusting valve and monitoring unit, increase the pinion rotation resistance, reach the purpose of safe auxiliary brake.When platform rises, hold fluid cylinder release pressure oil, drive the hydraulic pump rotation, the speed increaser reverse operation plays the effect of deceleration, improves output drive strength thereby reduce rotating speed, makes pinion drive platform and rises, reduce the configuration of lift platform power demand, reach purpose of energy saving.
Patent of the present invention can make the effect of holding liquid in the platform decline process and playing safe auxiliary brake, can significantly reduce the heating loss of system in the platform decline process, eliminates brake hidden danger out of control in the platform decline process.Device has simple and reliable for structure, advantage convenient to operation.The hydraulic pressure of patent of the present invention holds hydraulic control system technology can carry out the energy storage effectively, has very high energy-saving application and is worth.
Description of drawings
Accompanying drawing is a kind of energy-saving safeguard device fundamental diagram that is used for lifting platform.
1 lifting pole, 2 tooth bars, 3 pinions, 4 gearboxes, 5 shaft couplings, 6 hydraulic pumps
7 oil-absorbing pipelines, 8 pressure pipelines, 9 fuel tanks, 10 unidirectional proportional throttle valves
11 pressure-regulating valves 12 hold fluid cylinder 13 gas compressed packages 14 power transmission shafts
15 pressure sensors, 16 monitoring units
The specific embodiment
As shown in the figure, patent of the present invention mainly comprises: lifting pole 1, tooth bar 2, pinion 3, gearbox 4, shaft coupling 5, hydraulic pump 6, oil-absorbing pipeline 7, pressure pipeline 8, fuel tank 9, unidirectional proportional throttle valve 10, pressure-regulating valve 11, hold fluid cylinder 12, gas compressed package 13, pressure sensor 15, monitoring unit 16; Lifting pole 1, tooth bar 2, pinion 3, axle 14, gearbox 4, shaft coupling 5, hydraulic pump 6, unidirectional proportional throttle valve 10, hold fluid cylinder 12 and gas compressed package 13 and be connected before and after successively; Hydraulic pump 6 is connected with fuel tank 9 by oil-absorbing pipeline 7, is connected with unidirectional proportional throttle valve 10, pressure sensor 15 and pressure-regulating valve 11 by pressure pipeline 8; Monitoring unit 16 is connected with pressure sensor 15 with unidirectional proportional throttle valve 10; Be evenly equipped with tooth bar 2 along lifting pole 1.In platform decline process, rotate by platform weight-driven pinion 3, drive hydraulic pump 6 by gearbox 4 speedups, to holding fluid cylinder 12 pumping pressure oil, implementation platform decline potential energy converting and energy is the oil liquid pressure energy, simultaneously, when platform decline generation brake is out of control,, realize the oil pressure adjustment automatically by pressure-regulating valve 11, unidirectional ratio adjusting valve 10 and monitoring unit 16, increase pinion 3 rotary resistances, reach the purpose of safe auxiliary brake.When platform rises, hold fluid cylinder 12 release pressure oil, drive hydraulic pump 6 counter-rotatings, speed increaser 4 reverse operations play the effect of deceleration, improve output drive strength thereby reduce rotating speed, make pinion 3 drive platform and rise, reduce the configuration of lift platform power demand, reach purpose of energy saving.