CN216045379U - Device for preventing gear box bearing from high-temperature ring-sliding of wind generating set - Google Patents

Abstract

Wind generating set prevents that gearbox bearing high temperature race circle device. In the wind power generation industry, what use extensively is double-fed type and directly drive type wind generating set, and the step-up gear of generating set is the accelerating gear who is arranged in wind generating set, and step-up gear box body bearing adopts the heating embedding structure, and along with operating duration is of a specified duration, under the unstable condition of long-term load, the race condition appears following the rotation in the inner and outer lane in box internal bearing, less shafting's life. The utility model comprises the following steps: lubrication hole (3), the lubrication hole processing is on the lateral wall of high-speed shaft bearing hole (2) of gear box (1), and bearing (7) are installed to the high-speed shaft bearing hole liam, and the internal surface of high-speed shaft bearing hole lateral wall has bearing hole flat key groove (4) along axial processing, and bearing outer lane (8) of bearing are opened along the axial has bearing outer lane flat key groove (9), install locking flat key (5) in the bearing outer lane flat key groove. The utility model is used for preventing the gear box of the wind generating set.

Description

Device for preventing gear box bearing from high-temperature ring-sliding of wind generating set

Technical Field

The utility model particularly relates to a device for preventing a bearing of a gear box from high-temperature ring-off of a wind generating set.

Background

In the wind power generation industry, double-fed type and direct-drive type wind generating sets are widely used, a speed-up gear box of the double-fed wind generating set is a speed-up device used in the wind generating set, the working efficiency of the speed-up gear box can reach more than 97%, and the speed-up gear box mainly comprises a box body, a sun gear, a planet carrier, a shaft, a gear shaft, a bearing and other parts. The first stage of the fan speed-increasing gear box is a planet carrier input, which is fixed by an inner gear ring, a sun gear floats, the planet carrier and an input shaft are designed into a whole, the output end of the sun gear is connected with a spline in a driving shaft of a second stage provided with a gear by a drum-shaped tooth, a driving gear of the second stage is connected on a transmission shaft by interference fit and is meshed with a driven gear shaft, a driving large gear of a third stage transmission arranged on the driven gear shaft of the second stage is meshed with a small gear designed into a whole by an output shaft, and the torque is transmitted out.

The bearing of the speed-increasing gear box body adopts a heating embedded structure, and along with the running time of the bearing, under the condition of unstable long-term load, the bearing inside the box body has the condition that an inner ring and an outer ring rotate with each other to run the ring, the outer ring of the bearing rotates with each other to run the wear of the ring acceleration bearing, and the service life of a shaft system is greatly shortened. According to the operation period of the current industry, the inner bearing of the gear box is rotated with the race ring to become a new bearing failure mode, the bearings on two sides of the high-speed shaft of the gear box mainly have high temperature and race ring, and in order to overcome the defects that the bearing race ring causes bearing abrasion and gear box shafting faults and less unnecessary loss, the wind generating set device for preventing the gear box bearing from high-temperature race ring is urgently needed to be provided.

Disclosure of Invention

The utility model aims to provide a device for preventing a bearing of a gear box from high-temperature ring running for a wind generating set.

The above purpose is realized by the following technical scheme:

the utility model provides a wind generating set prevents that gear box bearing high temperature race circle device, it includes: the lubrication hole, the lubrication hole processing is on the lateral wall of the high-speed shaft dead eye of gear box, the bearing is equipped with to the high-speed shaft dead eye liam, and the internal surface of high-speed shaft dead eye lateral wall has the flat keyway of dead eye along axial processing, the bearing inner race of bearing is opened along the axial has the flat keyway of bearing inner race, the installation has the locking parallel key in the flat keyway of bearing inner race, the opposite side and the cooperation of bearing hole parallel key groove of locking parallel key, the jump ring is installed in the bearing outside.

Has the advantages that:

according to the utility model, the side wall of the bearing hole of the high-speed shaft is punched, the lubricating pipeline is rearranged, the lubricating oil is conveyed into the bearing hole of the high-speed shaft through the gear box, and the bearing with the lubricating hole on the outer ring is selected, so that the lubricating oil is directly injected onto the bearing roller for lubrication. A flat key groove is axially punched at the front end of a high-speed shaft bearing hole, a customized bearing outer ring with the flat key groove is arranged in the high-speed shaft bearing hole, a locking flat key is stably arranged at the corresponding position of the bearing outer ring and the high-speed shaft bearing hole groove, a clamp spring is arranged, and the locking flat key is placed in the bearing hole and cannot fall out. The utility model effectively reduces the conditions of bearing abrasion and gear box shafting faults caused by bearing race, prolongs the service life of the shafting, reduces unnecessary economic loss and has strong practicability.

Description of the drawings:

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a left side view of FIG. 1;

FIG. 3 is a schematic view of a flat keyway of a bearing outer race;

in the figure: 1. a gear case; 2. a high speed shaft bearing bore; 3. lubricating hole, 4, bearing hole flat key groove, 5, locking flat key, 6, snap spring, 7, bearing, 8, bearing outer ring, 9, bearing outer ring flat key groove.

The specific implementation mode is as follows:

example 1:

the utility model provides a wind generating set prevents that gear box bearing high temperature race circle device, it includes: lubrication hole 3, the lubrication hole processing is on the lateral wall of the high-speed shaft bearing hole 2 of gear box 1, bearing 7 is equipped with to the high-speed shaft bearing hole liam, and the internal surface of high-speed shaft bearing hole lateral wall has dead eye flat key groove 4 along axial processing, bearing outer lane 8 of bearing is opened along the axial has bearing outer lane flat key groove 9, locking flat key 5 is equipped with to the bearing outer lane flat key groove liam, the opposite side and the dead eye flat key groove cooperation of locking flat key, jump ring 6 is installed in the bearing outside.

Claims (1)

1. The utility model provides a wind generating set prevents that gear box bearing high temperature race circle device, it includes: the lubrication hole is characterized in that: the lubrication hole processing is on the lateral wall of the high-speed shaft bearing hole of gear box, the bearing is equipped with to the high-speed shaft bearing hole liam, and the internal surface of high-speed shaft bearing hole lateral wall has the flat keyway of dead eye along axial processing, the bearing inner race of bearing is opened along the axial has the flat keyway of bearing inner race, the flat keyway of locking is equipped with to the flat keyway of bearing inner race, the opposite side and the cooperation of the flat keyway of dead eye of locking, the jump ring is installed in the bearing outside.

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