Welcome to Sanjin Elevator Parts Website!

Focus on the development and production of elevator parts for 18 years

Shaanxi Sanjin Elevator Fittings Co.,Ltd.

Guide Rail

Advantages

What is an elevator guide rail

Guide rail: a device, such as a groove or ridge made of metal or other material, capable of withstanding, securing, guiding or reducing friction

Elevator guide rail provides guidance for the car and the counter weight when the elevator is running.
1.Playing a supporting role when the safety gear is braked,
2. An important component in the elevator system.
3.The importance analysis of the elevator guide rail is from the safety and comfort of the elevator.
 

What is the Security of elevator guide rail

 
The factors that affect the safety of the elevator by the guide rail are mainly the material.
1.The material of the elevator guide rail is too hard or uneven (partially hard). When the caliper is braked, the clamping will not get enough friction, which will cause the brake to fail.
2.The elevator guide rails must have sufficient strength to support the car and the impact force when the safety gear is braked.
 
 

What aspects influence the comfort of elevator guide rails

 
I.Connection accuracy of the elevator guide rail

1.The connection accuracy of the solid guide rail is ensured by the end dimension of the guide rail and the symmetry of the yin and yang.
2.The connection accuracy of the hollow guide rail and the escalator guide rail is ensured by the end dimension and shape tolerance of the guide rail.
3.The connection accuracy of the guide rail directly affects the stability and comfort of the elevator operation.

II.Guide rail surface roughness
1.The elevator guide rail surface roughness directly affects whether the guide shoe can smoothly run on the guide surface.
2.It also affects the storage of lubricating oil, thereby affecting the running quality of the car.

III.Straightness and twist of the elevator guide rail
 
1.Bending and twisting at any point on the elevator guide rail will give the car a side force.
2.Affecting the linear motion of the car up and down, so that the car has a sense of sway, as the elevator speed increases.
3.The car will feel a sense of vibration, which will affect the comfort.


How to select guide rail for your elevator correctly

 

It should have the following properties:

(1) Guidance accuracy — the accuracy of trajectory guidance. The main factors affecting the guidance accuracy include: geometric accuracy and contact accuracy of the guide, the structure of the guide, the stiffness and thermal deformation of the guide and its supporting parts and the oil film thickness and stiffness between static (dynamic) pressure guides.

(2) Accuracy retention — mainly determined by the wear resistance of the guide rail. The wear resistance is related to the material of the guide, the friction property of the guide pair, the pressure on the guide and its distribution law.

(3) Stiffness — mainly includes the guide’s own stiffness and contact stiffness. It mainly depends on the shape、size、connect mode and bearing condition of guide rail.

(4) Low speed motion stationary — the friction-induced self-excited vibration of guide rail during low speed movement or micro-displacement is easy to occur, that is, crawling. Crawling reduces the positioning accuracy or increases the surface roughness of the work piece

The T Type- shaped guide rail & the hollow guide rail of the guide rail type

T type guide: its main dimensions and tolerances are shown in the table below. The common guide rail listed in the table and T82/B is the industry size, which is different from the old lift t-guide standard J6 5072.1-1996.
 

Hollow guide—it is made of steel plate through cold bending (or rolling) into a hollow t-shaped elevator to reuse the guide rail, which can reduce the weight and cost due to its empty characteristics. It satisfies the function of heavy guidance, but cannot bear the clamping force of safety pliers, so it is only used for the weight guide rail without the weight safety pliers and the elevator speed is not high.

The name of hollow guide is composed of class, group, type, feature, main parameter and deformation code.

□– deformation code: A means underside folding, underside straight edge omitted

△– Main parameter code: expressed as per unit weight of guide rail, kg/m

K– Type code: hollow section steel

T — Class group code: t-shaped elevator for reuse guide rail


Dimensions of Machined Guide Rail


COD.ISO b1 h1 h k n c g f rs m1 m2 t1 t2 I d d1 b3 I2 I3
TOLERANCES
±1.5 ±0.75 ±0.1 ‘+0.1±
0.05
3   ±0.75 ±0.75   ’+0.06
±0.03
0.06 0.1 0.1 3     0.2 0.2 0.2
T70-1/B 70 65 64 9 34 6 6 8 1.5 3 2.95 3.5 3 128 3 26 42 105 25
T75-3/B 75 62 61 10 30 8 7 9 3 3 2.95 3.5 3 123 13 26 43 90 30
T78/B 78 56 55 10 26 7 6 8.5 3 3 2.95 3.5 3 123 13 26 43 90 30
T82/B 82.5 68.25 66.6 9 34 7.5 6 8.25 3 3 2.95 3.5 3 111 13 26 50.8 81 27
T82-3/B 82 62 61 15.88 30 10 7 10 3 3 2.95 3.5 3 156 3 26 50.8 114.3 38.1
TE9/B 89 62 61 16 33.4 10 7.9 11.1 3 6.4 6.37 7.14 6.35 156 3 26 57.2 114.3 38.1
T89-1B 89 62 61 15.88 33.4 10 7 10 3 3 2.95   3.5 156 13 26 57.2 114.3 38.1
T9O/B 90 75 74 16 42 10 8 10 4 6.4 6.37 7.14 6.35 156 13 26 57.2 114.3 38.1
T114/B 114 89 88 16 38 9.5 7.9 11.1 4 6.4 6.37 7.14 6.35 156 17 33 74 114.3 38.1
T127-1B 127 88.9 88 15.88 44.5 10 7.9 11.1 4 6.4 6.37 7.14 6.35 156 17 33 79.4 114.3 38.1
T127-2/B 127 88.9 88 15.88 50.8 9.5 12.7 15.9 5 6.4 6.37 7.14 6.35 156 17 33 79.4 114.3 38.1


Physical Properities of Machined Guide Rail


COD.ISO S q1 e lxx Wxx ixx wy Wxx iw
cm2 kg/m cm cm4 cm2 cm cm4 cm3 cm
T70-1/B  9.51 7.47 2.04 41.3 9.24 2.09 18.65 5.35 1.4
T75-3/B  10.99 8.63 1.86 40.35 9.29 1.92 26.49 7.06 1.55
T78/B  9.84 7.72 1.65 29.9 7.56 1.47 26.1 6.71 1.63
T82/B  10.9 8.55 1.98 49.4 10.2 2.13 30.5 7.4 1.67
T89/B  15.7 12.3 2.09 59.7 14.5 1.98 53 11.9 1.84
T89-1B  15.7 1 2.09 59.7 14.5 1.98 53 11.9 1.84
T9O/B 17.2 13.5 2.65 102.2 20.9 2.5 52 11.9 1.76
T114/B 20.8 16.4 2.87 179 29.7 2.93 108 19.1 2.28
T127-1B 22.6 17.8 2.75 187 30.4 2.91 151.5 24 2.65
T127-2/B 28.9 22.7 2.46 200 31 2.68 235 36.8 2.86