elevator part passanger elvator load cell,low cost load cell
EWD-H-XJ4 Elevator Load Weighing Device
l This system is applicable to all elevators with movable platform car (containing 4-channel programmable switch signals)
l Main characters:
1. Contactless inductive working mode, solid state relay output, no need to fix the original position of elevator overload switch, and to change structure of elevator platform car.
2. Electrical properties is in compliance with the standard of the International Electro-technical Commission.
3. Set up all parameters on the spot.
4. Adopt strong inductive magnet, improve the anti-interference ability to the utmost.
5. System carry scientifical computing out according to mathematical equations to automatically amend detention of error. It also has no-load auto zero capacity
6. It is totally convenient to adjust on the pot by means of artificial self-study or artificial displacement.
7. Control method of programmable output signal created by ourself is applicable to all kinds of traction elevator with movable platform car.
8. Integrated structure design: small size, easy installation.
l Technical index
Scope of application
Applicable to all elevators with movable platform car. range of auto-detention (2.0mm ≤car bottom displacement≤10.00mm ); range of manual set displacement: 2.5~9.9mm ( relate to parameter PD)
Rated load /200 (5.0kg when rated load is 1 ton)
≤1.5% ( 5~40℃ )
Working temperature range≤3.0%
Solid state relay
Programmable universal signal
① 4 channel programmable output mode are following: no- load, light- load, semi-load, heavy load, rated load and overload (user can freely set up the range of change.
② Each channel can be programmed as dynamic close or dynamic break contact.
③ Contact capacity: DC/AC 32V/15mA
movable platform car of elevator
l Product appearance, internal structure and interface specifications：
J1,J2,J3,J4 4 channels Solid state relay output
System power supply：DC/AC24V(±10%)／150mA
absolutely can't put this device "P7, P8" outside of the directly connected to external power supply output port, thus may cause permanent damage shall not be responsible for the company
1. J1～J4internal solid state relay, Maximum load capacity：DC/AC 32V/50mA。
2. Output signal programmable for "no-load ~ over-load", to participate in the elevator control logic
l Machine dimension and installation schematic diagram
Outlook dimensioninstallation schematic diatgram
1. As near to install this device in the bottom or the elevator the overload switch location, near the center of the system should be installed on the bearing beam of the elevator to the bottom, induction magnet adsorption in the bottom, and the marking surface of weighing device sensing point;
2. System bracket should be made on the basis of the condition of the elevator, but must use the not easy to deformation material, the better of the thickness is more than 4 mm or with stiffener, to prevent sway;
3. Adjust the device, make the bottom magnet aimed at center of end surface. At the same time must ensure that the device end face and the magnet end face parallel to each other.
l If you need details, please send us for this product "user manual".
- Q:The working principle of construction elevator
- The construction elevator is a kind of common name, its standard name should be the construction elevator, this is a kind of crane machine equipment. Construction lifter adopts modular structure, because it is used in construction process, the elevator needs to be constantly shift with the construction project, therefore its structure must be easy to disassembly and assembly. For example, after the site is used, the elevator is disintegrated and transported to another site for reassembly of construction elevators. So how does the construction elevator work? The construction elevator mainly carries the structural self-forming system, and the construction dependence is low. It more driven by force, drive devices are installed on the hanging basket, through the gear and rack drive system, the mutual cooperation, so as to realize the rise and fall of the elevator. You may have seen gear and rack in the mechanical clock, the gear is round, the rack is straight, and the two bite together to achieve the motion. The elevator work that is common in our residential and commercial buildings is different from the construction elevator. Most of the elevator parts are fixed in buildings, which are mainly carried by buildings. Its movement is achieved through wire rope.
- Q:What about the energy efficiency of the escalator
- Variable frequency construction elevator energy saving effect general. Frequency conversion is not energy efficient. The difference between the frequency and the common machine is the smoothness and speed of the operation. Frequency conversion speeds up to 90m / 1 minutes and the average is only 35m / 1 min Frequency conversion when parking is slow down and stop Ordinary is directly stop delay parking and adjustment made door light who bow Angle decyl with brush spring connection will be better. The frequency conversion requires the site voltage to be strictly a little bit looser than the voltage requirement Energy consumption is: according to the elevator drive mechanism for general three transmission two kinds of the elevator are three 11 kw motor, that their energy consumption are 3 x 11 = 33 kw is hours each hanging basket consumes electricity 33 degrees, the actual power consumption will be bigger.
- Q:What is the main function of the construction elevator safety guard
- For safety device of construction hoist main effect is in the process of elevator used in times of emergency power, hit the brakes, let hoisting cage security attached on the guide rail frame, prevent the hoisting cage falling!
- Q:Can a construction elevator use a single cage
- The construction elevator is designed to solve the construction machinery that can not be carried by the dragon door frame. Dual-use is the biggest feature of the construction elevator.
- Q:Why is the construction elevator not up to the roof
- The free end of the construction of the lift height is only 7.5 meters high, general construction elevator drive now is the case, so the hoisting cage height and drive around 4.5 meters high, the other national standard construction elevator ceiling limit moves, drive above about 1.8 meters away from the top of the rails. So it's the free end of the construction elevator that can't satisfy the roof. As long as they can set up effective adhesion measures, they can also get on the roof.
- Q:How do construction suspension scaffolding be handled in the people's elevator?
- You need to transfer at the scaffold poling build-up on the cantilever beams, and one cargo lift scaffolding and scaffolding disconnect processing, so that not only is the stress problem, and is an outer layer removed, people transfer the general is still there, easy to keep people transfer at the shelf.
- Q:What is the meaning of double straps in the construction elevator?
- With double cage for heavy, namely SCD200/200 series Is the two cages, each cage has a corresponding weight, the weight up and down in the elevator cage rise to energy conservation and reduce the reaction between the up and down, when you imagine front-rear door principle is about the same
- Q:How many meters is the wall of the construction elevator?
- The height is greater than 60 meters every six meters.
- Q:Do the elevator need to be installed when the main project is in construction
- In the construction of the main body, the construction elevator should be installed. The general construction is about 15 meters. The construction elevator is commonly called the construction elevator, but the construction elevator includes a broader definition and the construction platform belongs to the construction elevator series. Simple construction elevator is by car, driving mechanism, standard section, attached to the wall, chassis, fence, electrical system and so on several parts, manned cargo construction machinery is a frequently used in construction, because of its unique enclosure structure make it take up both comfort and safety, construction elevator is usually used with tower crane on the construction site, the average load in 1-3 tons, running speed is 1 to 60 m/min. The construction elevator of our country is more and more mature, and gradually goes to the international. 3, building main body engineering means based on the above foundation, accept, for all the top load and construction project, maintaining structural integrity, stability and safety of bearing structure system.
- Q:Construction elevator positioning should consider which problems
- The construction elevator is short for construction. It is an important equipment in high-rise building construction, and construction site accident hazards easily, because it can cause many major accidents, injuries in the inspection should be listed as a key to check the content. Based on past accidents and on-site inspections, we often find topics that we think should be examined in a critical area
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