Elevator guide rail is the safety track of the elevator running up and down in the well road; and is also one of the elevator spare parts. It can be known that the guide rail is be installed on the hoistway wall; and be fixed and connected between guide rail bracket and rail support on the hoistway wall. The common guide rail for elevators is ‘T’ shaped guide rail. For this kind of elevator parts, it has the characteristics of high reliability, high safety and low security. The guide rail plane must be smooth, with no obvious uneven surface. Due to the guide rail is shuttle track for guide shoe and safety gear of car, so the clearance must be kept during installation. The rigidity of guide rail cannot be ignored, because it will be born import duty for stop running when elevator happens the speed of the accident.
How long does the elevator steel belt useful life of OTIS Gen2?
OTIS GEN2 elevator traction refers to the scrap basic standard of steel belt.
1. The design life of the steel belt is 20 years, which is 2-3 times of the traditional steel wire rope. It is recommended to conduct a comprehensive appearance inspection of the steel belt at least once a year during the design life cycle of the steel belt.
2. If there is no abrasion or damage to the steel core in the cladding layer and the steel belt real-time monitoring alarm device without abnormal alarm, then the steel belt will be recommended to be scrapped after 20 years of use.
3.Such as found in the routine maintenance of steel belt real-time monitoring alarm device has the abnormal alarm but did not stop running , need to check the steel belt monitor alarm device whether it is abnormal. If the belt monitor alarm device itself without exception, we suggest replacing the steel belt immediately.
4. If the steel belt monitor device alarming in real time and the elevator stop running. We should scrap and replace the steel belt immediately if the elevator does not re-serve in any way.
5. One of the following situations should be forced to scrap and replaced.
Steel cords breaking through polyurethane.
Wear marks, visual signs of cord imprints from exterior.
Elevator accessories – selection of steel rope
In order to be safe, the hoisting steel rope of the elevator is used with special or no. 1 steel wire, and its steel wire diameter is limited to between 0.3 and 1.3mm. The hoisting rope of the elevator is seru (X type) and warrington (W type). At present, the domestic elevator generally uses the silu-style 8 or 6 steel rope hauling steel rope, among which 8X(19) has more applications.
Elevator parts – selection of steel rope
1. Example of steel rope mark identification.
1000kg of passenger elevator to the rated load, for example, SCH elevator traction rope with 8 X (19) – 16-140 right hand in, eight for the line number of shares, X is west lu type, (19) for each strand of wire number, 16 for SCH elevator traction rope nominal diameter (mm), and 140 for SCH elevator traction rope tensile strength (KGF/was), the right to pay for steel wire strand and strand in line right direction twist system. The domestic SCH elevator traction steel rope is right handed.
2. Steel rope core
SCH elevator traction steel rope was used for the oiled fiber rope, rope support and fixed rope stock position so as to improve the contact between the steel rope, slow down the impact load, fuel storage pool role for SCH elevator traction steel rope of lubrication oil source for a long time, make good lubrication performance of the steel wire.
3. The structure and characteristics of the siu-type (X) SCH elevator traction steel rope.
SCH elevator traction rope in strands of the cross section of a share to 1 + 9 + 9, namely core plus the first layer and the second layer, a total of 19 roots of steel wire: center wire 1 root, φ1.2 mm, inner layer steel wire 9 root, φ0.6 mm, outer wire 9 root φ1.05 mm. The outer diameter is larger than the inner diameter, so it is also called the outer rough elevator to drag the steel rope. It is characterized by the same number of steel lines in the inner and outer layers of each share, but the diameter is different, the outer layer is embedded in the inner cavity of the inner layer, the twisting distance of the multi-layer steel wire is equal, the structure is tight and strong, and it is not easy to open the volume. The outer thick steel wire increases the wear resistance; the inner layer fine steel wire enhances softness, which is advantageous to the sliding of the bending moment, thus improving the flexibility and service life of the elevator traction steel rope. Between the two layers, the steel rope is in contact with the steel rope, and the fatigue resistance of the steel rope is good. The resistance of the steel wire is good, the contact area is increased and the contact stress is reduced.
World Elevator & Escalator Expo 2018 in Shanghai
World Elevator & Escalator Expo 2018 in Shanghai held on May 8th-11th, 2018 at Shanghai national convention and exhibition center. Our company ELEVATORVIP.COM has been invited to take part in it, we show elevator & escalator parts in this exhibition, which involves various of types mechanical & electronic parts used for both elevator & escalator equipment. Meanwhile, We have communicated with customers in this exhibition to learn more about the latest market of elevator accessories, consolidating the existing customer relations of cooperation and further unearthed a large number of potential customers, Laying a solid foundation for the development of the market.
The time and place of the next two international elevator exhibitions are as follows:
2019 International Exhibition of Fine Elevator Products
Date: May 8th-11th, 2019
Add: Langfang, China.
2020 World Elevator & Escalator Expo
Date: May 6th-9th, 2020
Add: Shanghai, China.
Our company -ELEVATORVIP.COM is willing to meet with customers and industry colleagues at that time. Welcome to all of you!
Elevator heart part — controller
Elevator heart part: controller
Elevator controller main components are: control panel or controller, transformers, bridge pile and capacitance, air switch or fuse, relay and contactor, drive, power cables, signal lines, terminals or connectors and other components.
Three tips warning for Elevator
1. Do not allow to grill elevator door by hands in any condition when it is running.
More than 70 per cent of elevator accidents occur on door system. Why we say that? Anyone who knows the structure of elevator knows that it would be like a trap in front of your feet. There is a risk of shearing, squeezing, and hanging from the inside. So, when you take the elevator, you must see it clearly and then step back, wait for the elevator stop, and then leave the door open.Continue reading
Dimensions Parameter for Elevator Installation Preparation and Installation
The elevator styles and sizes are different in department stores, shopping malls, supermarkets, office buildings and residential areas, so the installers operation whether are also different when they were in preparation and construction?
The install and construction dimensions requirement as following :
-
Preparation: survey site personnel tool
-
Installation of mechanical parts.
I. Guide rail mounting
1)The position of the bracket is determined:
a) the highest minimum is 0.5 meters, and the center is 2.5 meters.
b) on the building beam, the error is less than 300mm.2) size requirement: the horizontal error is less than 5mm(horizontal). Longitudinal)
3) guide size:
a) the vertical error is less than 1mm in length and three times in three consecutive paragraphs.
b) relative error of the car side +2~~0mm to the heavy side +3~~0mm.
c) steps and gaps: steps (less than 0.05mm) gap (less than 0.5mm)
d) diagonal error: less than or equal to 3mm.
The center error is less than 1mm and less than 2mm.II. Traction machine installation
1)The base height of the traction machine is determined: 1/2 guide wheel diameter + guide wheel is more than 150mm.
2) steel girder installation:
a)2/1000 horizontal error.
b) the parallel error is less than 6mm.
c) the welding thickness is greater than 6mm.
d) the floor thickness is greater than 12mm.3) hoisting machine installation:
a) hoisting: strictly follow the requirement of super.
b) size requirement: the vertical error of the tractor is less than 2mm(with shock absorb, Less than 1mm(no shock absorb)
c) brake: the clearance is less than 0.7mm and the fitting surface: more than 80%. - Re-installation:
weight determination of heavy weight +(0.4~~0.5) weight, the weight must be reliable and fixed. -
Drag wire rope:
1) length determination: the measured method is adopted.
2) rope head requirements:
a) intercept length is greater than 100mm.
b) casting alloy meets the requirements.3) it is necessary to adjust the screw taper sleeve length less than 70mm.
-
cage installation:
1) size: less than 1/1000 before and after 1/1000.
2) gap between guide shoe and guide rail: left and right is less than 2mm.
3) safety clamp clearance adjustment 2~~3mm.
4) the floor level of the car is 1/1000(horizontal, vertical)
5) ground water level is 1/1000.
6) the wall perpendicularity is 1/1000(install spring board, control panel)
7) door and decorative plate gap passenger ladder: less than 6mm freight elevator: less than 8mm.
8) the safety touch panel must produce a center deviation of 10mm.
9) the gap between the eccentric wheel of the suspension door and the door guide rail is less than 0.5mm.
10) the door of the door is removed from the surface of the ground to the surface :<6mm freight elevator :< 8mm.
11) gate center deviation: less than 5mm. -
floor door installation:
1) door fan lower end passenger ladder: less than 6mm freight elevator: less than 8mm.
2) door fan and door set ladder: less than 6mm freight elevator: less than 8mm.
3) the horizontal error is 1/1000.
4) the gap between the hall door and the door is 25~~30mm. The relative error is less than positive and negative 1mm.
5) the door lock meshing depth is greater than 7mm.
6) the gap between the door ball and the cage is 5~~10mm, 5~~10mm gap between door knife and hall door. -
sill installation
1)the vertical error of the buffer is 0.5/1000.
2) the relative height is less than 2mm.
3) the relative center is less than 20mm.
4) the buffer switch must be effective. -
speed limiter:
1) vertical error of the speed limit wheel of machine room: less than 0.5mm.
2) side error of speed limit rope and guide rail: less than 20mm.
3) the pit tightening device must meet the requirements. -
electrical installation
1) control screen size requirements: 0.5 m (left and right)X 0.6 m (rear)X 0.8 m (front)
2) cable in the machine room must be connected to the slot and reliable grounding.
3) the cable should not be twisted at least 100mm.
4) the well grooves must be reliably grounded.
5) the well road lighting is 0.5m (up and down) 7 meters (the distance between the lamp and the lamp)
6) all kinds of emergency stop must be valid. -
various experiments:
1) slow single layer
2) slow multi-layer
3) quick single layer
4) rapid multi-layer
5) equilibrium coefficient
6) stop experiment.
7) lift experiment
8) static load test elevator at the lowest level, 150% load, lasting 10 minutes.
Technical conditions for main parts scrapping of elevators
- Three core components , the host, door machine, control drive system (that is, the panel in the control cabinet and converter) steel wire rope, long service life and can reduce maintenance costs, speed limiter, buffers, safety gear, the three is the most key components in the elevator safety, more than four pieces can consider to import
- Four Spaces: part of the machine room, well road and pit, car part, floor part.
Eight systems: traction system, guide system, cage, door system, weight balance system, electric drive system, electrical control system, safety protection system. - Eight application technologies:
How long does the elevator service life?
How long does the elevator service life?
- Generally speaking, the life of the elevator that the manufacturer promises is 20 years.
- so the elevator service life as normal, generally use ten to fifteen years or so, the working condition and maintenance efforts, do a repair, replacement of a batch of badly worn, obsolete, do not conform to the new rules of the components, with five to eight years, then can do it again on upgrading and replacement of a full range of security components, replace the latest host and control system, capsules and guide rail can preserve, involved in capsules showed what can change, and can continue to use about ten years, eight years later to a whole new ladder.
- Therefore, three years for new, three years for old ,and three years for mended, The elevator service life can be used for twenty-five to thirty years if under good condition. If you are worried about the supply of Elevator Parts or Escalator Parts , you can contact us.
24 Factors May Cause an Elevator Failure in 2018
Every elevator part is very important. Any failure of an elevator part will cause an elevator accident. Therefore, it is very important to ensure the safety of the elevator.
(1) The defects of the motor will affect the safe operation of the whole drive system, and it is easy to have an unsafe impact on passengers.
(2) Severe wear or peeling of the gear (worm gear pair) will cause the elevator to run out of control due to the failure of the transmission, which may cause damage to the personnel.
(3) The brake, brake springs, brake arm, failure will cause brake failure, cause the car run out of control, thus, header, Dun bottom accident caused casualties and severe damage to equipment.
(4) The severe wear and hardness difference between the grooves and the grooves of the traction wheel will reduce the traction of the elevator, which can cause the elevator to run out of control and cause damage to passengers.
(5) The failure of the anti-rope wheel, the rewinding wheel and the guide wheel can easily cause the elevator to run out of control and cause damage to the passengers.
(6) The defects of the steel wire rope and the rope head are easy to cause the steel wire rope to break or slip, the cage fall, and cause the damage of equipment and buildings, and the serious accident of casualties.Continue reading