ZSY hard tooth surface reducer

ZSY three-stage transmission hard tooth surface cylindrical gear reducer

Models include: ZSY160, ZSY180, ZSY200, ZSY224, ZSY250, ZSY280, ZSY315, ZSY355, ZSY400, ZSY450, ZSY500, ZSY560, ZSY630, ZSY710, etc

The speed ratio is 22.4 25 28 31.5 35.5 40 45 50 56 63 71 80 90 100

Hard tooth surface reducers mainly include parallel axis series and vertical axis series The parallel axis reducer is produced according to the national standard (JB/T8853-2001), and the product has been optimized and designed. It has advanced international standards in the 1980s and mainly includes four series: ZDY (single-stage), ZLY (two-stage), ZSY (three-stage), and ZFY (four stage). The vertical axis reducer is produced according to the national standard ('B/T9002-1999) A transmission device used for arranging the input shaft and output shaft in a vertical direction It mainly includes three series: DBY, DCY, and DFY;

1. Performance characteristics

(1) Center distance The main parameters such as nominal transmission ratio have been optimized and designed, and the main components and parts have good interchangeability

(2) The gears are made of alloy steel through carburizing and quenching The tooth surface hardness reaches 54-62HRC

(3) Small size, light weight, high precision, large load-bearing capacity, high efficiency, long lifespan, smooth transmission, and low noise.

(4) Generally, oil pool lubrication is used Natural cooling, when the thermal power cannot be met, circulating oil jet or fan can be used. Cooling coil cooling.

2. Application scope

(1) The input speed is generally n, ≤ 1500r/min.

(2) The circumferential speed of gear transmission shall not exceed 20mis.

(3) Working environment -40_50~'C. If it is below 0 ℃ Before starting, the lubricating oil should be preheated to above 0 ℃. This reducer can be used for both forward and reverse operation.

(4) It can be widely used in industrial sectors such as metallurgy, mining, chemical industry, building materials, lifting, transportation, textile, papermaking, instruments, plastics, rubber, engineering machinery, energy, etc.

2、 Selection method

1. Known parameters and conditions

Name of prime mover, power P1=kW, speed n1=r/min

Working machine name, power P2=kW, speed n2=r/min

The required transmission ratio is i=n/ n，

The number of working hours per day is h, the number of starts per hour is times, and the operating cycle per hour is%

Load characteristics (steady, impact, severe impact) Requirements (general, high, high)

Environmental temperature ℃, on-site heat dissipation conditions, cooling water temperature ℃

Coupling type Does the gear shaft shaft need to withstand additional forces when extended

Assembly method type, output shaft rotation direction (please specify the main rotation direction when rotating in both directions)

Do you have any other requirements

2. Select specifications and models based on rated power

The nominal input power P of the parallel axis series gearbox. (Table 9-20) Steady according to load, with a daily working time of less than or equal to 10 hours, and no more than 5 starts per hour Allow the starting torque to be twice the working torque. When the gearbox operates in both directions, the safety factor for the contact strength of a single pair of gears is approximately 1, and the failure probability is calculated to be less than or equal to 1% Depending on the situation, PA needs to be multiplied by a coefficient of 0.8-1.0. When the reverse load is large and the commutation is frequent, the coefficient K should be selected. At lower levels Take the smaller value of the coefficient On the contrary, take the larger value

The rated power of the selected gearbox meets: P (: 2 P: KAK; K。≤PA

In the formula:

Pc - Calculate power

P2- Working machine power

KA - Usage factor

KS - start-up coefficient

3. Verify according to the allowable thermal power

The allowable thermal power P of the parallel axis series gearbox is suitable for an ambient temperature of 20C

Installation dimensions of ZSY hard tooth surface reducer: