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:The kangaroo crane.Specific definitions and application methods, aspects: The pull-type crane is the most common type of crane hoisting, sent to Australia by the U.S. military, used for cargo handling. This kind of crane is installed on the trailer, by truck or tractor trailer

Q:The site of the daily inspection of the bridge crane has those: The brake piece, the motor's slide ring, the speed reducer gear oil, the wheel lube oil, the electric contactor, the line, etc., can look at the instruction.

Q:What is the characteristic of common crane: Is suitable for the larger construction units or temporary liquidity dispersed site rubber-tyred cranes and open-air handling advantages: (1) the speed is lower than the vehicle type, higher than that of crawler, small bending radius, good cross-country performance, grade ability was 17% ~ 20%; (2) the use of a leg heavy lifting, which can be done on a flat ground without a leg, can be done on all sides, and can also be used to walk slowly. (3) the stable performance is better. Disadvantages: (1) the mobility is worse than the car. (2) the speed is slow and the road is higher. Applicable scope: is suitable for the relatively fixed construction site, especially suitable for narrow construction site Crawler crane advantages: (1) the speed is slow, good cross-country performance, climbing ability big, the traction coefficient as the tyred 1.5 times; (2) it can be constructed in soft ground such as mud and swamps, and it is relatively stable. (3) a variety of work devices can be changed for a wide range of jobs. Disadvantages: (1) destructive to the road while driving; When the distance is longer, it is necessary to ship with the platform trailer. Application range: suitable for a more fixed, ground condition, which is used in crane construction.

Q:How is the crane on the construction site built: To dismantle the tower crane, when building was completed in tower crane to a small crane onto the roof, then, is the contraction of jack will tower crane fell to the roof, and then decomposed into several segments, with a small crane, then small crane break down into smaller components, take the elevator down. When the tower is removed, the ground will be filled with the structure of the tower crane. There is another way is to own a jack will pillar elongation, reoccupy lets own boom lift a scape in, puckering up jack again, and so the scape is getting longer.

Q:What is the big car in the crane and what the car does and what does the electric gourd do: Electric hoist is lower than the cost of the car. The car generally used on the large tonnage cranes, electric hoist used in small tonnage crane. Specifically according to the requirement of the user.

Q:What is the type and classification of the crane?: According to different classification of the structure of the crane girder crane, bridge crane, gantry crane, mobile cranes, cantilever crane, tower crane, cable crane and ship crane, vehicle bridge, etc. Girder crane is: the beam crane mainly includes single beam bridge crane and double beam bridge crane The moving crane includes: truck crane, wheel crane, chain crane, all-terrain crane and cross-country crane. The cantilever crane has three forms: column, wall and balance crane The gantry crane has: tyrotype, orbital The model is too much to say.

Q:Is the car in the workshop a mobile crane?: A row hanger belongs to move, like a fixed gourd does not belong. The tower crane does not belong either

Q:Details of several anti-rolling systems of the tyrotype container gantry crane?: Rubber-tyred container gantry crane of a terminal company (hereinafter referred to as the gantry crane) by Shanghai zhenhua port machinery co., LTD. (ZPMC), Shanghai port machinery heavy industry co., LTD. (SPMC), Noel lifting equipment (China) co., LTD. (NOELL crane manufacturers such as manufacturing, phyletic and various. However, there are different ways of using the crane system, which is different from each other. When the suspension is suspended, the cargo will be shaken and how to prevent the shaking from being a common problem for all cranes. For gantry crane, the stabilizer system refers to the sling lifting container, in the case of cars, cart translation, the swing in a certain period, container to fulfill the requirements of recognized on the box, a good rolling system can play a good damping effect, has greatly raised Labour productivity. The following is the analysis of several anti-rolling systems used in the dragon door crane.

Q:The door frame of the door crane is made up of which parts: The composition of the portal crane: The crane operating mechanism generally USES only four active and driven wheels, and if the weight is large, the wheel is used to reduce the wheel pressure. When the wheel is more than four, it must be rearticulated and balanced frame so that the load of the crane is spread evenly over the wheels. The structure of the bridge is composed of the main beam and the beam, which is divided into single main beam bridge and double beam bridge. The single main beam bridge is composed of single main beam and end girder on both sides of the span, which consists of two main beam and end girder.

Q:LDA electric single-beam crane is designed according to the design of JB/T1306-1994. So you think of LDA as an updated version of LD, and you can look up these two criteria.: LDA electric single-beam crane is designed according to the design of JB/T1306-1994. So you think of LDA as an updated version of LD, and you can look up these two criteria.

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