CN114877054A

CN114877054A - Gear ring lubricating device

Info

Publication number: CN114877054A
Application number: CN202110986807.7A
Authority: CN
Inventors: 崔新维; 崔逸南
Original assignee: Beijing Sanli Xinneng Electrical Equipment Co ltd
Current assignee: Beijing Sanli Xinneng Electrical Equipment Co ltd
Priority date: 2021-08-26
Filing date: 2021-08-26
Publication date: 2022-08-09

Abstract

The invention discloses a gear ring lubricating device. The device comprises a greasing helical gear and a grease storage box. The greasing helical gear is directly meshed with the gear ring or is meshed with a gear meshed with the gear ring to realize lubrication greasing. The greasing helical gear is meshed with the meshed gear ring or gear according to a correct meshing condition, and the axes of the rotating shafts of the greasing helical gear and the meshed gear ring or gear form a space stagger. The greasing helical gear takes grease from the grease storage box directly or through a grease outlet wheel. If the greasing bevel wheel takes out grease from the grease storage box through the grease outlet wheel, part of the grease outlet wheel is positioned in the grease storage box, and the greasing bevel wheel and the grease outlet wheel rotate in the same direction. Each greased bevel gear is provided with at least one bevel gear type cleaning wheel which performs a cleaning function by meshing with the toothed ring, the steering of the greased bevel gear controlling the contact of the bevel gear type cleaning wheel with the toothed ring. The invention provides a pure mechanical device for realizing automatic lubrication and greasing. The device has simple structure and high reliability, and utilizes the principle that the helical gear has axial relative motion relative to the gear ring or the gear to evenly coat lubricating grease on the gear ring or the gear meshed with the gear ring, thereby improving the lubricating effect and ensuring the service life of the gear ring.

Description

Gear ring lubricating device

Technical Field

The invention relates to a gear ring lubricating device, and belongs to the technical field of wind power generation.

Background

A yaw gear ring or a pitch gear ring of a wind generating set is generally lubricated by greasing through a lubricating pump matched with a control system, and is usually lubricated with a slewing bearing (or a bearing). The lubrication of the gear ring is different from that of the slewing bearing, and at least the gear ring is ensured to be added with lubricating grease when in meshing rotation, so that the grease adding amount required by the gear ring is less than that required by the slewing bearing. The centralized lubrication (namely, simultaneous greasing of the gear ring and the slewing bearing) scheme brings too much value to the gear ring part, on one hand, waste of operation and maintenance resources is caused, and on the other hand, cleaning of the wind turbine generator is also influenced.

More importantly, the conventional method of greasing the ring gear is to grease the ring gear mesh through a tooth surface divider and lines. Such methods do not guarantee that the tooth flanks of the ring gear are uniformly covered with grease and there is a risk of pipe blockage.

CN 208073686U and CN 211259546U propose methods of providing a grease outlet or a grease bin during gear ring machining. The method puts new requirements on gear ring processing, and does not obviously improve the lubricating effect.

CN 201772234U, CN 203594951U and CN 109058743 a both propose to lubricate a gear ring by meshing a gear and a gear ring, but the above methods all use a general spur gear, and the grease smearing effect is general.

Disclosure of Invention

A gear ring lubricating device comprises a greasing helical gear and a grease storage box. The greasing helical gear is directly meshed with the gear ring or is meshed with a gear meshed with the gear ring to realize lubrication greasing. The greased helical gear is meshed with the meshed gear ring or gear according to a correct meshing condition, and the axes of the rotating shafts of the greased helical gear and the meshed gear ring or gear form a space stagger (non-parallel).

The greasing helical gear takes grease from the grease storage box directly or through a grease outlet wheel. If the greasing helical gear takes grease from the grease storage box through the grease outlet wheel, the greasing helical gear and the grease outlet wheel rotate in the same direction, and part of the grease outlet wheel is positioned in the grease storage box. If the greasing helical gear directly takes grease from the grease storage box, part of the greasing helical gear is positioned inside the grease storage box.

Each greased bevel gear is provided with at least one bevel gear type cleaning wheel which performs a cleaning function by meshing with the toothed ring, the steering of the greased bevel gear controlling the contact of the bevel gear type cleaning wheel with the toothed ring.

The invention has the beneficial effects that: the gear ring lubricating device completely gets rid of a grease conveying pipeline, a grease outlet pump and a control system, and realizes automatic lubricating and grease coating by a pure mechanical device. The device has simple structure and high reliability, and simultaneously utilizes the principle that the helical gear has axial relative motion relative to the gear ring or the gear to uniformly coat lubricating grease on the gear ring or the gear meshed with the gear ring, thereby improving the lubricating effect and ensuring the service life of the gear ring.

Drawings

Fig. 1 is a schematic view of a ring gear lubricating apparatus.

FIG. 2 is a schematic view of a greased bevel gear being greased by a grease extraction wheel.

Fig. 3 is a schematic view of an arrangement of bevel gear type cleaning wheels.

Description of the drawings: 1-gear ring, 2-gear, 3-greasing helical gear, 4-grease storage box, 5-grease storage box bracket, 6-greasing helical gear rotating shaft, 7-base, 8-grease outlet wheel, 9-helical gear type cleaning wheel, 10-dirt scraping plate and 11-cleaning wheel switching mechanism.

It is noted that the above-described figures are intended to illustrate the features of the invention and are not intended to show any actual structure or to reflect the dimensional, relative proportions and other details of the various components. In order to more clearly illustrate the principles of the present invention and to avoid obscuring the same in unnecessary detail, the examples in the drawings have been simplified. These figures do not represent an inconvenience to a person skilled in the relevant art in understanding the present invention, and an actual ring gear lubrication device may comprise more components.

Detailed Description

In order to make the purpose and technical solution of the embodiments of the present invention clearer, the following describes the embodiments of the present invention completely with reference to the related drawings of the embodiments of the present invention. This patent describes only some embodiments and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The components of the device are as follows:

as shown in the figure, the gear ring lubricating device comprises a greasing helical gear (3) and a grease storage box (4). The greased helical gear (3) is directly meshed with the gear ring (1) or meshed with the gear (2) meshed with the gear ring (1). The gear ring (1) can be an inner gear ring or an outer gear ring. The greasing helical gear (3) takes grease from the grease storage box (4) through the grease outlet wheel (8) or directly. The rotating shaft (6) of the greasing helical gear (3) and the bracket (5) of the grease storage box (4) are connected with the base (7).

Two sides of the greasing helical gear (3) are provided with a helical gear type cleaning wheel (9) and a dirt scraping plate (10). The bevel gear type cleaning wheel (9) and the dirt scraping plate (10) are connected with a cleaning wheel switching mechanism (11). When the greased helical gear (3) rotates in one direction, only one bevel gear type cleaning wheel (9) contacts with the tooth surface of the gear ring (1), and grease is smeared on the gear ring (1) after the bevel gear type cleaning wheel (9) cleans the gear ring, so that the grease which is just smeared can be prevented from being scraped off by the other cleaning wheel. The cleaning wheel switching mechanism (11) can adopt a bidirectional ratchet mechanism, and mainly comprises a ratchet wheel which rotates coaxially with the greasing helical gear (3), a bidirectional pawl and a spring. Since one end of the bidirectional pawl is contacted with the ratchet wheel, and the other end is away from the ratchet wheel, the principle can be used for controlling whether the two cleaning wheels (9) are contacted with the gear ring (1). The dirt scraping plate (10) is arranged at the part of the bevel gear type cleaning wheel (9) which is not contacted with the gear ring (1). The dirt scraping plate (10) can remove dirt such as particles and sand dust on the surface of the bevel gear type cleaning wheel (9).

The application part of the device:

if the greasing helical gear (3) takes grease from the grease storage box (4) through the grease outlet wheel (8), the greasing helical gear (3) is meshed with the grease outlet wheel (8) or meshed with a gear which coaxially rotates with the grease outlet wheel (8), and most of the grease outlet wheel (8) is positioned inside the grease storage box (4). In order to ensure the sealing property, the grease outlet wheel (8) is made of non-metal materials such as rubber or nylon materials. If the greasing bevel wheel (3) and the greasing wheel (8) need to be led to rotate.

If the greasing helical gear (3) directly takes grease from the grease storage box (4), part of the greasing helical gear (3) is positioned inside the grease storage box (4). In order to ensure the sealing property, the greased bevel gear (3) is made of nonmetal materials such as rubber or nylon materials.

The greased helical gear (3) utilizes the axial motion when meshed with the gear ring (1) or the gear (2) to evenly coat the lubricating grease on the tooth surface of the gear ring (1) or the gear (2) meshed with the gear ring (1), thereby improving the lubricating effect.

Claims

1. A gear ring lubricating device is characterized in that: the device comprises a greasing helical gear and a grease storage box; the greasing helical gear is directly meshed with the gear ring or is meshed with a gear meshed with the gear ring to realize lubrication greasing; the greasing helical gear is meshed with the meshed gear ring or gear according to a correct meshing condition, and the axes of the greasing helical gear and the meshed gear ring or gear form a space staggered (non-parallel); the greasing helical gear takes grease from the grease storage box directly or through a grease outlet wheel.

2. A ring gear lubricating device according to claim 1, characterized in that: such as paint

The grease bevel wheel takes grease from the grease storage box through the grease outlet wheel, the grease coating bevel wheel and the grease outlet wheel rotate in the same direction, and part of the grease outlet wheel is positioned in the grease storage box.

3. A ring gear lubricating apparatus according to claim 1, characterized in that: if the greasing helical gear directly takes grease from the grease storage box, part of the greasing helical gear is positioned inside the grease storage box.

4. A ring gear lubricating device according to claim 1, characterized in that: each greased bevel gear is provided with at least one bevel gear type cleaning wheel which performs a cleaning function by meshing with the toothed ring, the steering of the greased bevel gear controlling the contact of the bevel gear type cleaning wheel with the toothed ring.