Different speed electric hoist

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Different speed electric hoist

1.Introduction

CD or MD type electric wire rope hoist is a kind of light type lifting equipment. It could be installed on single girder crane with hoist, overhead,gantry and jib crane. Modified could be used as a winch. So it is a commonly used lifting equipment in factory, mine, port, warehouse, cargo yard, shop etc, is a nessesary equipment to improve working efficiency and labor conditions.

2. Technical parameter

Model					CD1 MD1
Capacity			t		2									3
Lift height			m		6	9		12	18		24		30	6	9		12	18		24		30
Lift speed			m/min		8, 0.8/8									8, 0.8/8
Travel speed			m/min		20									20
Wire rope	Nominal diameter		mm		11									13
	Structure				6×37+NF									6×37+NF
Traveling track GB/T706-1988					22a~45c									20a~45c
Min curvature radius				m	2		2.5			3		4		2		2.5			3		4
Hoist moto		Model			ZD1 31-4 ZDS1 0.4/3.0									ZD1 41-4 F1 ZDS1 0.5/4.5 F1
		Power	KW		3, 0.4/3									4.5,4.5/0.5
		Rpm	r/min		1380									1380
Trolley motor		Model			ZDY1 11-4									ZDY1 11-4
		Power	KW		0.2									0.2
		Rpm	r/min		1380									1380
Bonding times			T/H		120									120
Work duty					M3									M3

3.Sketch

Q: What is the range of the harbour crane, the extension, and the back stretch?: Outer reach (for bridge unloader and loading bridge) : the maximum distance from the center line of the water side to the center line of the lifting center. Usually in capital L. The length of the extension is related to the size of the loading and unloading objects, such as the width of the ship and the width of the cabin. Relating to the loading and unloading process, such as whether to overdo the work; The dimension of the water side orbit center to the edge of the wharf is related to the position of the track and the axis of rotation.

Q: What is the height of the tower crane?: The installation, disassembling and lifting of tower crane; You have to go through an expert argument

Q: What are the procedures for the installation of hoisting machinery?: Go to the local technical supervision bureau special inspection place, bring the relevant certificate of installation company, also have the inspection report of lifting machine, certificate of qualification, sales contract, 400 yuan

Q: The tower crane command gesture: Stop: the forearm level is placed on the chest, the fingers stretch, palms facing down, the horizontal wave to the side. Emergency stop: two small arms horizontal to the chest, five fingers outstretched, palms facing down, while horizontal wave to the side. End of work: open your hands with fingers and cross in front of your forehead.

Q: The size of a single beam bridge crane is required for annual inspection: According to the latest definition of lifting machinery, two tons and the following are not called cranes, so there is no such thing as an annual inspection, which should be carried out in 2015.

Q: Which parts should the protective plate of the bridge crane be set in?: 4) other cranes that use slippery lines shall have protective devices for the areas where the electric shocks shall be electric.

Q: What does the lh20-31.5 A5 mean: Electric hoist double beam crane, the weight 20t, span 31.5 m, working grade A5.

Q: Don't know a lot about cranes, ask a very crude question. What is the difference between a manual crane and an electric crane? Is it just the motivation needed? Is there any difference between the structure and the principle? Does manual electric heavy machine have to depend on human ability to work just like that simple chain gourd? It wouldn't be unreasonable if the height was too high. It is true that the cranes are not known, and the cranes are electric, except that the simple gourd has not seen any other manual lifting equipment. I look forward to some help with the picture. Let's make people laugh.: Manual is to rely on the pulley of electromotive pulley to be driven by the hydraulic cylinder to push if the distance asks big also need to add the pulley!

Q: How many times does the crane take every year?: Check regularly every three years.I hope my answer will help you.

Q: QD hook bridge crane and LH type gourd double beam crane, what is the difference between using value?: List the pros and cons: QD: you can use a higher level of work that can be used in a more complex and difficult situation. Maintenance is convenient. But the price is high, the wheel is big, and the weight is big. Ll: it's a compact, lightweight, simple operation. The drawback is that there is no high level of work Five, the control method has what distinction: Ground operation: handle operation/remote operation. Cavs: the bridge (CAM control, the control of the linkage) Handle: man and car walk, save personnel, can control the driving, can also hang the object. Disadvantages: it is dangerous to walk with someone Remote control: the transport of large and dangerous goods can not follow the road. Faults: limits of vision.

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