8000 Series XW Cycloidal Pinwheel Reducer Gearbox 8175-8265 Horizontal

Cycloidal Pinwheel Reducer

The hydraulic speed reducer of 8000 series needle is a kind of reducer with advanced design and novel structure, which applies the principle of planetary transmission and cycloidal needle gear. In particular, the newly developed 8000 series cycloidal needle gear reducer products are all manufactured by computer optimization design and the most advanced processing methods at home and abroad. All indicators have reached the advanced level of similar products in the world, Our company's large series cycloidal pin gear reducers have excellent quality, reliable performance, complete varieties, reasonable price and considerate service, and are well received by users at home and abroad

XWD Series 8175-8265 Horizontal Gearmotor Dimension

Characteristic of 8000 Series Cycloidal Pinwheel Reducer 

1. Large transmission ratio. The transmission ratio is 1/6-1/87 during the first reduction. The transmission ratio is 1/99-1/7569 in two-stage reduction; The transmission ratio is 1/5841-1/658503 for three-stage transmission. In addition, multi-stage combination can be adopted as required, and the speed ratio can reach the specified value.
2. High transmission efficiency. As rolling meshing is adopted for the meshing part, the general primary transmission efficiency is 90% - 95%.
3. Compact structure, small volume and light weight. Compared with ordinary cylindrical gear reducer, the volume can be reduced by 2/1-2/3.
4. Few failures and long service life. The main transmission meshing parts are manufactured by grinding bearing steel, so the mechanical properties and wear resistance are both good, and because they are rolling friction, they have few failures and long service life.
5. Stable and reliable operation. Since the transmission process is multi tooth meshing, it is stable and reliable to operate with low noise.
6.  It is easy to disassemble and repair.
7.  It has strong overload capacity, impact resistance, small inertia torque, and is suitable for frequent starting and positive and negative transfer.

Power of 8000 Series Cycloidal Pinwheel Reducer

Input power: 0.09kW ～ 173kWOutput torque: 20N. m~60800N mTransmission ratio: 6~658503 The reducer can be widely used in various transmission machinery, such as hoisting, transportation, mining, metallurgy, petrochemical, textile, printing and dyeing, light industry, pharmacy, food, environmental protection machinery, etc.

Service Conditions of 8000 Series Cycloidal Pinwheel Reducer

1) It is applicable to continuous working system and allows forward and reverse operation.2) The key on the output shaft and input shaft extension shall be in accordance with GB/T1096 type and size of common flat key.3) The horizontal double shaft output shaft shall work in the horizontal position, and please contact the manufacturer if it must be used obliquely.4) The output shaft of vertical reducer shall be used vertically downward. The models below 8155 are lubricated with grease and can be used horizontally.Lubrication methodMachine model Horizontal vertical machine model Horizontal vertical8075 ～ 8155 grease 8075A ～ 8145C grease8160 ～ 8185 Oil bath plunger pump 8160A ～ 8227A Oil bath gear pump8190 ～ 8275 gear pump

Fault Analysis of Cycloidal Reducer

After the reducer has been running under load for a long time, the internal components and oil seals of the reducer are often worn and leaked, which mainly reflects the following aspects:1. The bearing chamber of the reducer is worn, including the wear of the housing bearing box, the bore bearing chamber of the housing and the bearing chamber of the gearbox;2. The gear shaft diameter of the reducer is worn, and the main worn parts are the shaft head, keyway, etc;3. The bearing position of the transmission shaft of the reducer is worn;4. The reducer joint surface leaks.For the wear problem, the traditional solution is repair welding or machining repair after brush plating, but both have certain disadvantages: the thermal stress generated by the high temperature of repair welding cannot be completely eliminated, which is easy to cause material damage, leading to bending or fracture of parts; However, brush plating is subject to the coating thickness, which is easy to peel off, and the above two methods are both metal repair methods, which cannot change the "hard to hard" coordination relationship, and will still cause re wear under the combined effect of various forces. For some large bearing enterprises, it is impossible to solve the problem on the spot, and most of them rely on outsourcing repair. In the contemporary western countries, polymer composites are often used to repair the above problems. They have super adhesion, excellent compressive strength and other comprehensive properties. The application of polymer materials for repair can avoid disassembly and machining, and the repair thickness is not limited. At the same time, the metal materials of the product do not have the concession, which can absorb the impact and vibration of the equipment, avoid the possibility of re wear, and greatly extend the service life of equipment components, saving a lot of downtime for enterprises and creating huge economic value.For the leakage problem, the traditional method needs to remove and open the reducer, replace the sealing gasket or apply sealant, which is not only time-consuming and laborious, but also difficult to ensure the sealing effect, and leakage will occur again in operation. Polymer materials can be used to control leakage on site. With superior adhesion, oil resistance and 350% elongation, the materials can overcome the impact of reducer vibration and solve the problem of reducer leakage for enterprises.

Solution to Oil Leakage of Reducer

1. Improve the vent cap and the cover plate of the inspection hole: the internal pressure of the reducer is greater than the external atmospheric pressure, which is one of the main reasons for oil leakage. If the internal and external pressures of the reducer are balanced, oil leakage can be prevented. Although the reducer has a vent cap, the vent hole is too small, which is easy to be blocked by coal dust and oil contamination. In addition, the cover plate of the inspection hole should be opened every time you refuel. Once you open it, the possibility of oil leakage will increase, so that the original leak free place will also leak. To this end, an oil cup type vent cap was made, and the original thin manhole cover plate was changed to 6 mm thick, and the oil cup type vent cap was welded on the cover plate. The vent hole diameter was 6 mm, which was convenient for ventilation and realized pressure equalization. In addition, oil was added from the oil cup when refueling, and the manhole cover plate was not opened, reducing the opportunity for oil leakage.2. Smooth flow: to prevent the excess lubricating oil dumped on the bearing by the gear from accumulating at the shaft seal, the excess lubricating oil must flow back to the oil pool in a certain direction, that is, smooth flow. The specific method is to open an oil return groove in the center of the lower bearing pad of the bearing block, which is inclined to the machine, and also open a gap at the straight port of the end cover, which is opposite to the oil return groove, so that the excess lubricating oil flows back to the oil pool through the gap and the oil return groove.