CN219413488U

CN219413488U - Gear lubrication structure

Info

Publication number: CN219413488U
Application number: CN202320303408.0U
Authority: CN
Inventors: 郑元峰
Original assignee: Individual
Current assignee: Individual
Priority date: 2023-02-24
Filing date: 2023-02-24
Publication date: 2023-07-25
Anticipated expiration: 2033-02-24

Abstract

The utility model discloses a lubrication structure of a gear, which comprises a gear body, an oil discharging assembly and a cover plate. An oil storage chamber is arranged in the middle of the gear body, a plurality of oil discharge chambers are distributed around the oil storage chamber, and the oil storage chamber is communicated with the oil discharge chambers. The oil extraction subassembly sets up in the oil extraction is indoor, has first splint, second splint, sealed pad, spring and oil guide in this oil extraction subassembly, and the apron is connected with the gear body, and the apron covers on the oil storage room. The gear has a compact lubricating structure and ingenious design, can enable lubricating oil to enter the oil discharging chamber by utilizing centrifugal force when the gear rotates, can realize quantitative oil feeding through the oil discharging assembly, ensures that the lubricating effect can be achieved after each gear rotates, effectively improves the meshing quality between the gears, prolongs the service life of the gears, and reduces the times of manually adding the lubricating oil.

Description

Gear lubrication structure

Technical Field

The utility model relates to the gear technology, in particular to a lubrication structure of a gear.

Background

Gears are common mechanical components in people's lives and are widely used in mechanical transmissions for transmitting motion and power. The gears are in meshed transmission, but the gears cannot be lubricated in rotation, so that the gears cannot be sufficiently lubricated, great damage can be caused to the gears, and the service life of the gears is shortened. At present, a gear is lubricated by adding lubricating oil to the surface of the gear to lubricate the gear, for example: drip lubrication (dropping lubricant oil onto the friction surface of the kinematic pair), splash lubrication (splashing lubricant onto the friction surface of the kinematic pair), oil spray lubrication, oil immersion lubrication and the like.

At present, in the gear lubrication mode adopting external oiling lubrication, once a lubrication system fails or the lubrication system is insufficient in oil or due to other reasons, when part of gears in a gear train are not sufficiently lubricated, the gears with poor lubrication are greatly damaged, and the service life of the gears is reduced

CN107606106a discloses a lubricated gear which, although capable of self-lubricating, is incapable of discharging a controlled amount of lubricating oil, resulting in excessive consumption of lubricating oil.

Disclosure of Invention

In order to solve the defects in the prior art, the utility model provides a lubrication structure of a gear.

The technical scheme of the utility model is realized as follows:

a lubrication structure of a gear, comprising:

the gear body is provided with an oil storage chamber in the middle, a plurality of oil discharge chambers are distributed around the oil storage chamber, the oil storage chamber is communicated with the oil discharge chamber,

the utility model provides a set up the oil extraction subassembly in the oil extraction room, has first splint, second splint, sealing washer, spring and oil guide spare in this oil extraction subassembly, sealing washer is located between first splint and the second splint, the one end and the second splint contact of spring, the other end and the inner wall contact of oil extraction room, the oil guide spare passes through the screw thread and installs in the oil extraction room, have oil drain post and fixed part on the oil guide spare, have the oil outlet on the fixed part, have multiple spherical recess on the oil drain post, the centre of first splint and second splint has the through-hole with oil drain post complex, the centre of sealing washer has the cross linear groove to and

and the cover plate is connected with the gear body and covers the oil storage chamber.

In the lubrication structure of the gear of the present utility model, the oil discharge chamber is composed of a movable hole in which the oil discharge column, the first clamping plate, the second clamping plate, the packing and the spring are located, and a fixed hole in which the fixed portion is placed.

In the lubrication structure of the gear, the connection part of the movable hole and the fixed disc is provided with an oil guide inclined plane.

In the lubrication structure of the gear, the cover plate consists of the fixed disc and the sealing disc, a sealing groove is arranged between the sealing disc and the fixed disc, and a sealing ring is arranged in the sealing groove.

In the lubrication structure of the gear of the utility model, the fixed disc is provided with a plurality of stop rods, and the stop rods penetrate through the oil discharging chamber to be in contact with the first clamping plate.

In the lubrication structure of the gear, a protruding part is arranged in the middle of the oil storage chamber, and a concave part matched with the protruding part is arranged in the middle of the sealing disc.

In the lubrication structure of the gear, the sealing disc is provided with the positioning column, and the oil storage chamber is provided with the limiting sleeve matched with the positioning column.

The lubricating structure of the gear has the following beneficial effects: the gear has a compact lubricating structure and ingenious design, can enable lubricating oil to enter the oil discharging chamber by utilizing centrifugal force when the gear rotates, can realize quantitative oil feeding through the oil discharging assembly, ensures that the lubricating effect can be achieved after each gear rotates, effectively improves the meshing quality between the gears, prolongs the service life of the gears, and reduces the times of manually adding the lubricating oil.

Drawings

FIG. 1 is a schematic diagram of a lubrication structure of a gear according to the present utility model;

FIG. 2 is a top view of FIG. 1;

FIG. 3 is a cross-sectional view taken at A-A of FIG. 2;

FIG. 4 is a partial enlarged view at B in FIG. 3;

FIG. 5 is an exploded view of FIG. 1;

FIG. 6 is a schematic view of the structure of FIG. 5 in another direction;

FIG. 7 is a perspective view of the gear body structure of FIG. 5;

fig. 8 is an exploded view of the oil drain assembly of fig. 5;

fig. 9 is a schematic diagram of the cover plate structure in fig. 5.

Description of the embodiments

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.

As shown in fig. 1 to 9, the lubrication structure of the gear of the present utility model comprises a gear body 1, an oil discharging assembly 2 and a cover plate 3, wherein an oil storage chamber 4 is arranged in the middle of the gear body 1, a plurality of oil discharging chambers 5 are distributed around the oil storage chamber 4, and the oil storage chamber 4 is communicated with the oil discharging chambers 5. The oil drain assembly 2 is arranged in the oil drain chamber 5, the cover plate 3 is connected with the gear body 1, and the cover plate 3 covers the oil drain chamber 4. The oil storage chamber 4 is sealed through the cover plate 3, and the oil discharge assembly 2 can quantitatively discharge lubricating oil, so that the teeth 6 on the gear body 1 are filled with the lubricating oil.

The gear body 1 and the cover plate 3 are fixedly connected through the pin 7, one side of the gear body 1 is provided with a mounting groove 8, and a fixing disc 9 of the cover plate 3 is arranged in the mounting groove 8.

The drain assembly 2 has a first clamping plate 10, a second clamping plate 11, a gasket 12, a spring 13 and an oil guide 14. The sealing gasket 12 is positioned between the first clamping plate 10 and the second clamping plate 11, the first clamping plate 10, the second clamping plate 11 and the sealing gasket 12 are connected and fixed through the pin 7, and the sealing gasket 12 is fixed in the middle through the first clamping plate 10 and the second clamping plate 11, so that the position of the sealing gasket 12 is ensured not to deviate.

The oil discharge chamber 5 is composed of a movable hole 15 and a fixed hole 16, the oil discharge column 17, the first clamping plate 10, the second clamping plate 11, the sealing gasket 12 and the spring 13 are positioned in the movable hole 15, and the fixed part 18 is positioned in the fixed hole 16. The connection between the movable hole 15 and the fixed disk 9 is provided with an oil guiding inclined plane 19.

And the movable hole 15 is partitioned into a first movable region 20 and a second movable region 21 by the first clamping plate 10, the second clamping plate 11 and the gasket 12, the first movable region 20 communicates with the oil reservoir chamber 4, and the second movable region 21 communicates with the fixed hole 16.

One end of the spring 13 is in contact with the second clamping plate 11, and the other end is in contact with the inner wall of the oil discharge chamber 5, i.e., with the oil guiding inclined surface 19. The oil guide 14 is screw-mounted in the oil discharge chamber 5, the oil guide 14 has an oil discharge column 17 and a fixing portion 18, the fixing portion 18 has a screw portion (not shown), and the fixing hole 16 has an internal screw (not shown) fitted with the screw portion. The fixing portion 18 has a hexagonal hole in the middle thereof, and the fixing portion 18 can be rotated to be fitted in the fixing hole 16.

The fixing portion 18 has an oil outlet 22, and the oil outlet 22 is provided with two portions, which are respectively located at two ends of the inner hexagonal hole. The fixing portion 18 is further provided with an annular groove 23, the annular groove 23 is communicated with the oil outlet 22, and lubricating oil guided by the oil guiding inclined surface 19 is collected and enters the oil outlet 22.

In order to ensure quantitative oil discharge, the oil discharge column 17 is provided with a plurality of spherical grooves 24, a through hole 25 matched with the oil discharge column 17 is arranged between the first clamping plate 10 and the second clamping plate 11, a cross linear groove 26 is arranged between the sealing gasket 12, and the inner diameter of the through hole 25 is matched with the outer diameter of the oil discharge column 17.

When the gear rotates, under the action of centrifugal force, the first clamping plate 10 and the second clamping plate 11 drive the sealing gasket 12 to compress the spring 13, so that the oil extraction column 17 firstly enters the through hole 25 of the second clamping plate 11, then passes through the cross linear groove 26, enters the through hole 25 of the first clamping plate 10, and finally enters the first movable region 20 through the spherical groove 24. The distance of the oil drain 17 passing through the first clamping plate 10 and the second clamping plate 11 is determined according to the rotation speed of the gears. The spherical grooves 24 are filled with lubricating oil, and the number of the spherical grooves 24 filled with lubricating oil is different according to different speeds. When the gear stops rotating, the spring 13 pushes the first clamping plate 10 and the second clamping plate 11 to reset by the self elastic force, but the spherical groove 24 can bring a small part of lubricating oil to the second movable area 21.

After the next gear rotation, the oil discharging column 17 enters the first movable area 20 again, and the lubricating oil in the second movable area 21 can be guided by the oil guiding inclined plane 19 to enter the annular groove 23, and finally enters the oil outlet hole 22 to reach between the teeth 6 and the teeth 6, so that the lubricating effect is realized.

The cover plate 3 consists of a fixed disk 9 and a sealing disk 27, a sealing groove 28 is arranged between the sealing disk 27 and the fixed disk 9, and a sealing ring 29 is arranged in the sealing groove 28. A boss 30 is arranged in the middle of the oil storage chamber 4, a concave part 31 matched with the boss 30 is arranged in the middle of the sealing disc 27, and sealing can be realized by matching with a sealing ring 29.

The fixed disk 9 is provided with a plurality of stop rods 32, the stop rods 32 penetrate through the oil discharging chamber 5 to be in contact with the first clamping plate 10, and the upper end of the movable hole 15 is provided with a plurality of small holes 34 matched with the stop rods 32. The stop lever 32 is arranged at the pin 7 of the first clamping plate 10 and stops the first clamping plate 10 and the second clamping plate 11 and stops the pin 7.

Since the first clamping plate 10 and the second clamping plate 11 are blocked, it is ensured that the positions of the first clamping plate 10 and the second clamping plate 11 are not changed.

The sealing disk 27 is provided with a positioning column 35, the oil storage chamber 4 is provided with a limiting sleeve 33 matched with the positioning column 35, the positioning column 35 is arranged in the limiting sleeve 33, the stability between the cover plate 3 and the gear body 1 is enhanced, and the strength of the whole gear is improved.

The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims

1. A lubrication structure of a gear, comprising:

2. The lubrication structure of a gear according to claim 1, wherein the oil discharge chamber is composed of a movable hole in which the oil discharge column, the first clamping plate, the second clamping plate, the packing and the spring are located, and a fixed hole in which the fixed portion is placed.

3. The lubrication structure of a gear according to claim 2, wherein the connection between the movable hole and the fixed disk has an oil guiding slope.

4. The lubrication structure of a gear according to claim 1, wherein the cover plate is composed of a fixed disc and a sealing disc, a sealing groove is arranged between the sealing disc and the fixed disc, and a sealing ring is arranged in the sealing groove.

5. The lubrication structure of a gear according to claim 4, wherein the fixed disk has a plurality of bars thereon, and the bars pass through the oil discharge chamber to be in contact with the first clamping plate.

6. The gear lubrication structure according to claim 4, wherein a convex portion is provided in the middle of the oil storage chamber, and a concave portion is provided in the middle of the sealing plate, the concave portion being engaged with the convex portion.

7. The gear lubrication structure according to claim 4, wherein the sealing disc is provided with a positioning column, and the oil storage chamber is provided with a stop collar matched with the positioning column.