Self-lubricating transmission gear

Abstract

The utility model relates to the technical field of gears, in particular to a self-lubricating transmission gear which comprises a gear ring and teeth annularly arranged on the outer surface of the gear ring, a shaft hole is formed in the center of the gear ring, oil storage cavities are formed in the gear ring and located above and below the shaft hole, and mounting grooves are formed in the top ends and the bottom ends of the interiors of the two oil storage cavities. An oil conveying pipe assembly is arranged in the oil storage cavity, the two ends of the oil conveying pipe assembly extend into the mounting grooves, balls are arranged in the oil conveying pipe assembly in a rolling mode, a first oil conveying channel is formed in one end of the oil conveying pipe assembly, and a second oil conveying channel communicating with the shaft hole is formed in the other end; the first oil outlet channel and the second oil outlet channel which are communicated with each other are formed in the teeth, and the first oil outlet channel is communicated with the first oil conveying channel. When the gear works, the lubricating effect of the gear is improved, the jamming phenomenon is prevented, abrasion is reduced, and the service life of the gear is prolonged.

Description

Technical Field

[0001] The utility model belongs to the technical field of gear pots, in particular to a self-lubricating transmission gear. Background Art

[0002] Gear transmission is the most widely used transmission form in the aviation field. It is relatively accurate, efficient, compact, reliable and has a long service life. Due to the large contact friction between gears, when the lubrication effect between gears is insufficient, it will cause jamming, resulting in increased wear between gears and damage to the gears. Utility Model Content

[0003] The technical problem to be solved by the utility model is to provide a self-lubricating transmission gear in view of the above defects, so as to improve the lubrication effect of the gear when the gear is working, prevent the occurrence of jamming, reduce wear and increase its service life.

[0004] The technical solution adopted by the utility model to solve its technical problems is as follows: a self-lubricating transmission gear, comprising a gear ring and teeth annularly arranged on the outer surface of the gear ring, an axial hole being opened at the center of the gear ring, an oil storage chamber being opened inside the gear ring, above and below the axial hole, an installation groove being opened at the top and bottom ends of the two oil storage chambers, an oil delivery pipe assembly being arranged inside the oil storage chamber, both ends of the oil delivery pipe assembly extending into the installation groove, balls being rolledly arranged inside the oil delivery pipe assembly, a first oil delivery channel being arranged at one end of the oil delivery pipe assembly, and a second oil delivery channel connected to the axial hole being arranged at the other end, a first oil outlet channel and a second oil outlet channel being connected to each other being opened inside the teeth, and the first oil outlet channel being connected to the first oil delivery channel.

[0005] Furthermore, the oil delivery pipe assembly includes a tube body, multiple oil inlets on both sides of the tube body inside the oil storage cavity, and oil outlets at the top and bottom ends of the tube body. The multiple oil inlets are arranged at intervals from top to bottom, and the two oil outlets are respectively connected to the first oil delivery channel and the second oil delivery channel.

[0006] Furthermore, the distance between the oblique edges on both sides of the teeth gradually decreases from one end of the outer surface of the gear ring to the end away from the outer surface of the gear ring, and the oil outlet channel is symmetrically arranged at the end of the first oil delivery channel away from the oil outlet, and the first oil delivery channel is inclined, inclining from the first oil delivery channel to the place where the distance between the two oblique edges of the teeth is close.

[0007] Furthermore, the second oil outlet channel is symmetrically arranged inside the tooth, and one end is connected to the first oil outlet channel near the first oil delivery channel, and the second oil outlet channel is inclined at a greater distance from the two oblique sides of the tooth from the first oil outlet channel.

[0008] Furthermore, the front end surface of the gear ring is provided with an oil filling port connected to the oil storage cavity.

[0009] The beneficial effects of the utility model are:

[0010] The utility model cooperates with the oil storage chamber, the mounting groove, the oil delivery pipe assembly, the ball, the first oil delivery channel, the second oil delivery channel, the first oil outlet channel and the second oil outlet channel to arrange the gears. When the gears are working, as they rotate, the lubricating oil in the oil storage chamber enters the interior of the oil delivery pipe assembly. With the centrifugal force of the rotation, the ball moves horizontally in the oil delivery pipe assembly, and the lubricating fluid in the oil delivery pipe assembly is delivered from the oil delivery pipe assembly into the first oil delivery channel or the second oil delivery channel, and the first oil delivery channel or the second oil delivery channel on that side is blocked to prevent excessive waste of the lubricating fluid. The lubricating fluid that enters the first oil delivery channel enters the first oil outlet channel again and goes to the outer surface of the teeth, so that lubrication is formed between the gears. The lubricating fluid that enters the second oil delivery channel enters the interior of the shaft hole, which effectively improves the lubrication effect of the gears when they are working, prevents the occurrence of jamming, reduces wear and increases their service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The foregoing and other objects, features and advantages of the present invention will become apparent from the following detailed description in conjunction with the accompanying drawings.

[0012] Figure 1 It is a front cross-sectional view of the utility model.

[0013] Figure 2 This is a schematic diagram of the structure of the oil delivery pipe assembly of the utility model.

[0014] Figure 3 It is a front view of the utility model.

[0015] Among them: 1. gear ring; 2. teeth; 3. shaft hole; 4. oil storage chamber; 401. mounting groove; 5. oil delivery pipe assembly; 501. pipe body; 502. oil inlet; 503. oil outlet; 6. ball; 701. first oil pipeline; 702. second oil pipeline; 801. first oil outlet channel; 802. second oil outlet channel; 9. oil filling port. DETAILED DESCRIPTION

[0016] The utility model is further described below in conjunction with the accompanying drawings.

[0017] Reference Figure 1-3As shown, the self-lubricating transmission gear includes a gear ring 1 and teeth 2 annularly arranged on the outer surface of the gear ring 1, an axial hole 3 is opened at the center of the gear ring 1, and oil storage chambers 4 are opened inside the gear ring 1, both above and below the axial hole 3, and lubricating oil is stored in the oil storage chamber 4. An oil filling port 9 connected to the oil storage chamber 4 is opened on the front end surface of the gear ring, and a plugging cover is arranged on the oil filling port 9, which is threadedly connected to the oil filling port 9, and lubricating liquid is injected into the oil storage chamber 4 through the oil filling port 9.

[0018] The top and bottom ends of the two oil storage chambers 4 are both provided with mounting grooves 401, and an oil delivery pipe assembly 5 is provided inside the oil storage chamber 4. Both ends of the oil delivery pipe assembly 5 extend into the mounting grooves 401, and both ends of the oil delivery pipe assembly 5 are installed in the mounting grooves 401. Balls 6 are provided inside the oil delivery pipe assembly 5 for rolling. The oil delivery pipe assembly 5 includes a tube body 501, a plurality of oil inlets 502 on both sides of the tube body 501 provided inside the oil storage chamber 4, and oil outlets 503 provided at the top and bottom ends of the tube body 501. The plurality of oil inlets 502 are arranged from top to bottom. The two oil outlets 503 are respectively connected with the first oil delivery channel 701 and the second oil delivery channel 702. The lubricating liquid in the oil storage chamber 4 enters the inside of the tube body 501 from the oil inlet 502, and with the centrifugal force of the gear rotation, the ball 6 moves horizontally along the tube body 501 to switch between the two oil outlets 502. The ball 6 pushes the lubricating oil in the tube body 501 to move to the oil outlet 502 at one end, and the ball 6 temporarily blocks the oil outlet 502 on that side to reduce excessive outflow of the lubricating liquid and reduce waste.

[0019] A first oil delivery channel 701 is provided at one end of the oil delivery pipe assembly 5, and a second oil delivery channel 702 connected to the shaft hole 3 is provided at the other end. The lubricating liquid enters the second oil delivery channel 702 from the oil outlet 502, and finally enters the shaft hole 3 to form lubrication. A first oil outlet channel 801 and a second oil outlet channel 802 that are interconnected are provided inside the tooth 2. The first oil outlet channel 801 is connected to the first oil delivery channel 701. The lubricating liquid enters the first oil delivery channel 701 from the oil outlet 502, and then enters the first oil outlet channel 801 and the second oil outlet channel 802, and is delivered to the outer surface of the tooth 2, so that lubrication is formed between the gears, which effectively improves the lubrication effect of the gears when the gears are working, prevents the occurrence of jamming, reduces wear, and increases their service life.

[0020] The spacing between the oblique sides of the tooth 2 gradually decreases from one end of the outer surface of the gear ring 1 to the end away from the outer surface of the gear ring 1. The first oil outlet channel 801 is symmetrically arranged at the end of the first oil delivery channel 701 away from the oil outlet 503. The first oil delivery channel 701 is inclined, and is inclined from the first oil delivery channel 701 to the position where the distance between the two oblique sides of the tooth 2 is close. The second oil outlet channel 802 is symmetrically arranged inside the tooth 2, and one end is connected to the first oil outlet channel 801 near the position of the first oil delivery channel 701. The second oil outlet channel 802 is inclined from the first oil outlet channel 801 to the position where the distance between the two oblique sides of the tooth 2 is farther. The first oil outlet channel 801 and the second oil outlet channel 802 are arranged obliquely. When the tooth rotates to the bottom end, the lubricating fluid in the first oil outlet channel 801 will flow to the top of both sides of the bevel of the tooth 2, and flow toward the gear ring 1 along the bevel of the tooth 2 as it rotates. When the tooth 2 rotates to the top end, the lubricating fluid will flow back from the first oil outlet channel 801 due to gravity, enter the second oil outlet channel 802, and flow to the bottom of both sides of the bevel of the tooth 2, so that the lubricating fluid can flow more easily through the outer surface of the gear ring 1, thereby making its lubrication effect better, preventing the occurrence of jamming, reducing wear, and increasing its service life.

[0021] The above description is only a preferred embodiment of the present invention and does not limit the present invention in any form. Any simple modification or equivalent changes made to the above embodiments based on the technical essence of the present invention shall fall within the protection scope of the present invention.

Claims

1. A self-lubricating transmission gear, comprising a gear ring (1) and teeth (2) annularly arranged on the outer surface of the gear ring (1), wherein a shaft hole (3) is opened at the center of the gear ring (1), and the characteristics are: Inside the gear ring (1), oil storage chambers (4) are provided above and below the shaft hole (3), and mounting grooves (401) are provided at the top and bottom ends of the two oil storage chambers (4). An oil delivery pipe assembly (5) is provided inside the oil storage chamber (4), and both ends of the oil delivery pipe assembly (5) extend into the mounting groove (401). Balls (6) are provided inside the oil delivery pipe assembly (5) for rolling. A first oil delivery channel (701) is provided at one end of the oil delivery pipe assembly (5), and a second oil delivery channel (702) connected to the shaft hole (3) is provided at the other end. A first oil outlet channel (801) and a second oil outlet channel (802) connected to each other are provided inside the tooth (2), and the first oil outlet channel (801) is connected to the first oil delivery channel (701).

2. The self-lubricating transmission gear according to claim 1, characterized in that: The oil delivery pipe assembly (5) comprises a pipe body (501), a plurality of oil inlets (502) provided on both sides of the pipe body (501) inside the oil storage chamber (4), and oil outlets (503) provided at the top and bottom ends of the pipe body (501), the plurality of oil inlets (502) being arranged at intervals from top to bottom, and the two oil outlets (503) being respectively connected to the first oil delivery channel (701) and the second oil delivery channel (702).

3. The self-lubricating transmission gear according to claim 1, characterized in that: The distance between the oblique edges of the teeth (2) on both sides of the outer surface of the gear ring (1) gradually decreases from one end of the outer surface of the gear ring (1) to the end away from the outer surface of the gear ring (1); the first oil outlet channel (801) is symmetrically arranged at the end of the first oil delivery channel (701) away from the oil outlet (503); the first oil delivery channel (701) is inclined, and inclines from the first oil delivery channel (701) to the position where the distance between the two oblique edges of the teeth (2) is close.

4. The self-lubricating transmission gear according to claim 1, characterized in that: The second oil outlet channel (802) is symmetrically arranged inside the tooth (2), and one end is connected to the first oil outlet channel (801) near the first oil delivery channel (701). The second oil outlet channel (802) is inclined at a greater distance from the first oil outlet channel (801) and the two oblique sides of the tooth (2).

5. The self-lubricating transmission gear according to claim 4, characterized in that: The front end surface of the gear ring is provided with an oil filling port (9) which is connected to the oil storage chamber (4).

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