CN212407521U

CN212407521U - High leakproofness gear box

Info

Publication number: CN212407521U
Application number: CN202020708873.9U
Authority: CN
Inventors: 叶大琦
Original assignee: Huangshan Jijia Transmission Machinery Co ltd
Current assignee: Huangshan Jijia Transmission Machinery Co ltd
Priority date: 2020-05-01
Filing date: 2020-05-01
Publication date: 2021-01-26
Anticipated expiration: 2030-05-01

Abstract

The utility model relates to the technical field of gear box sealing, in particular to a high-sealing gear box, which comprises a gear box body; an oil storage chamber is arranged at the bottom of the gear box body, a rotating shaft is arranged above the oil storage chamber, a gear is arranged on the rotating shaft, and the left end and the right end of the rotating shaft penetrate through the gear box body and extend to the outside of the gear box body; the outer walls of the left side and the right side of the gear box body are respectively provided with a first rotating hole matched with the radian of the rotating shaft; the top end of the oil storage chamber is provided with a lubricating oil hopper with an isosceles trapezoid structure, the cross section of the lubricating oil hopper is wide at the top and narrow at the bottom, and the bottom of the lubricating oil hopper is provided with an oil inlet communicated with the oil storage chamber; and the top end of the lubricating oil hopper is provided with a splash-proof sealing structure. The utility model discloses set up first splashproof baffle and second splashproof baffle on lubricating oil fill top, effectually prevented the gear at the in-process of operation, the lubricating oil on its surface takes place to splash for the condition of lubricating oil outflow gear box has reduced the outflow and the loss of lubricating oil.

Description

High leakproofness gear box

Technical Field

The utility model relates to a gear box sealing technique field specifically is a high leakproofness gear box.

Background

The speed reducer is an independent part consisting of gear transmission, worm transmission and gear-worm transmission enclosed in a rigid shell, is commonly used as a speed reduction transmission device between a prime mover and a working machine, is generally used for low-speed and high-torque transmission equipment, and achieves the purpose of speed reduction by meshing a motor, an internal combustion engine or other high-speed running power with a gear on an output shaft through a gear with a small number of teeth on an input shaft of the speed reducer.

The gear of the gear box of speed reducer is installed on the gear shaft, the gear shaft passes the casing, the below of gear is equipped with the lubricating oil pond, often contain a large amount of lubricating oil on the gear shaft, along with the rotation of gear shaft, partial lubricating oil can spread along the axial direction of gear shaft, but the leakproofness between gear shaft and the casing is not good, often have the outside that lubricating oil oozes the casing, lead to the waste of lubricating oil, surely be difficult to dismantle the speed reducer, the maintenance difficulty, for this reason we need research and develop a speed reducer gear box leak protection sealing device and solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a high leakproofness gear box to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a high-sealing gearbox comprises a gearbox body; an oil storage chamber is arranged at the bottom of the gear box body, a rotating shaft is arranged above the oil storage chamber, a gear is arranged on the rotating shaft, and the left end and the right end of the rotating shaft penetrate through the gear box body and extend to the outside of the gear box body; the outer walls of the left side and the right side of the gear box body are respectively provided with a first rotating hole matched with the radian of the rotating shaft; the top end of the oil storage chamber is provided with a lubricating oil hopper with an isosceles trapezoid structure, the cross section of the lubricating oil hopper is wide at the top and narrow at the bottom, and the bottom of the lubricating oil hopper is provided with an oil inlet communicated with the oil storage chamber;

the top end of the lubricating oil hopper is provided with a splash-proof sealing structure, the splash-proof sealing structure comprises a first splash-proof baffle communicated with the upper surface of the lubricating oil hopper and matched with the radian of the upper surface of the lubricating oil hopper, and the left side and the right side of the bottom of the first splash-proof baffle are provided with second rotating holes matched with the radian of the outer wall of the rotating shaft; the top end of the first splash guard extends to the top end of the gear, and the top end of the first splash guard is connected with a second splash guard; the second splash guard is an isosceles trapezoid structure with a narrow upper cross section and a wide lower cross section.

Preferably, the oil absorption sponge layers are arranged on the surfaces, opposite to the gear, of the first splash baffle and the second splash baffle respectively.

Preferably, a first sealing washer and a second sealing washer are respectively arranged on the rotating shaft in the first rotating hole and the second rotating hole.

Preferably, the outer ring of the first sealing washer is provided with a first limiting groove with a width larger than that of the first rotating hole.

Preferably, the outer ring of the second sealing washer is provided with a second limiting groove with a width larger than that of the second rotary hole.

Preferably, the top end of the gearbox body is provided with a sealing cover for sealing the box body.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses set up the lubricating oil fill rather than the intercommunication on the top of oil storage chamber, make the lubricating oil direct contact in gear and the lubricating oil fill when the rotatory in-process of gear, and at this in-process, because the splashproof seal structure that the lubricating oil fill top set up, through the setting of first splashproof baffle and second splashproof baffle, the effectual in-process that has prevented the gear at the operation, the lubricating oil on its surface takes place to splash, make the condition of lubricating oil outflow gear box, the outflow and the loss of lubricating oil have been reduced.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

In the figure: 1. a gear box body; 2. an oil storage chamber; 3. a rotating shaft; 4. a gear; 5. a first rotary hole; 6. a lubricating oil hopper; 7. an oil inlet; 8. a first splash guard; 9. a second rotary hole; 10. a second splash guard; 11. an oil absorbing sponge layer; 12. a first sealing gasket; 13. a second sealing gasket; 14. a first limit groove; 15. a second limit groove; 16. and (7) sealing the cover.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "vertical", "upper", "lower", "horizontal", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1, the present invention provides a technical solution: a high-sealing gearbox comprises a gearbox body 1; an oil storage chamber 2 is arranged at the bottom of the gear box body 1, a rotating shaft 3 is arranged above the oil storage chamber 2, a gear 4 is arranged on the rotating shaft 3, and the left end and the right end of the rotating shaft 3 penetrate through the gear box body 1 and extend to the outside of the gear box body 1; the outer walls of the left side and the right side of the gear box body 1 are respectively provided with a first rotating hole 5 matched with the radian of the rotating shaft 3; the top end of the oil storage chamber 2 is provided with a lubricating oil hopper 6 with a cross section of an isosceles trapezoid structure with a wide upper part and a narrow lower part, and the bottom of the lubricating oil hopper 6 is provided with an oil inlet 7 communicated with the oil storage chamber 2;

the top end of the lubricating oil hopper 6 is provided with a splash-proof sealing structure, the splash-proof sealing structure comprises a first splash baffle 8 which is communicated with the upper surface of the lubricating oil hopper 6 and is matched with the radian of the upper surface of the lubricating oil hopper 6, and the left side and the right side of the bottom of the first splash baffle 8 are provided with second rotating holes 9 matched with the radian of the outer wall of the rotating shaft 3; the top end of the first splash baffle 8 extends to the top end of the gear 4, and the top end of the first splash baffle 8 is connected with a second splash baffle 10; the second splash guard 10 is in an isosceles trapezoid structure with a narrow upper cross section and a wide lower cross section.

Further, the first splash guard 8 and the second splash guard 10 are provided with oil absorption sponge layers 11 on the surfaces opposite to the gear 4.

Further, a first sealing washer 12 and a second sealing washer 13 are respectively arranged on the rotating shaft 3 inside the first rotating hole 5 and the second rotating hole 9.

Further, a first limiting groove 14 which is larger than the width of the first rotating hole 5 is arranged on the outer ring of the first sealing washer 12.

Further, a second limiting groove 15 which is larger than the width of the second rotary hole 9 is arranged on the outer ring of the second sealing washer 13.

Further, the top end of the gear box body 1 is provided with a sealing cover 16 for sealing the box body.

The working principle is as follows: the utility model discloses in the in-process of using, connect external drive assembly through the transmission of pivot 3, make pivot 3 drive gear 4 and do the equidirectional rotary motion, simultaneously, the surface of gear 4 and the lubricating oil direct contact in the lubricating oil fill 6, in the pivoted process of gear 4, the splashproof seal structure that sets up all around outside gear 4, through the setting of first splashproof baffle 8 and second splashproof baffle 10, the landing and the oil stain that flies out on gear 4 carry out effectual interception effect, and because the oil absorption sponge layer 11 that sets up on the one side of first splashproof baffle 8 and second splashproof baffle 10 relative gear 4, make when lubricating oil is intercepted by first splashproof baffle 8 and second splashproof baffle 10, and rather than direct contact, lubricating oil is adsorbed by oil absorption sponge layer 11, further improve the effect of interception; and first sealing washer 12 that has first spacing recess 14 and second sealing washer 13 that has second spacing recess 15 have been set up respectively in the inside pivot 3 of first commentaries on classics hole 5 and second commentaries on classics hole 9, the lubricating oil to the part carries out the diffusion along the axial direction of pivot 3 carries out effectual interception, improve pivot and seal box body 1, the leakproofness between the splashproof seal structure, the in-process of gear in the operation has been prevented, the lubricating oil on its surface takes place to splash, make the condition of lubricating oil outflow gear box body 1, the outflow and the loss of lubricating oil have been reduced.

It is worth noting that: the whole device realizes control over the device through the master control button, and the device matched with the control button is common equipment, belongs to the existing mature technology, and is not repeated for the electrical connection relation and the specific circuit structure.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A high leakproofness gear box which characterized in that: comprises a gear box body (1); an oil storage chamber (2) is arranged at the bottom of the gear box body (1), a rotating shaft (3) is arranged above the oil storage chamber (2), a gear (4) is installed on the rotating shaft (3), and the left end and the right end of the rotating shaft (3) penetrate through the gear box body (1) and extend to the outside of the gear box body (1); the outer walls of the left side and the right side of the gear box body (1) are respectively provided with a first rotating hole (5) matched with the radian of the rotating shaft (3); the top end of the oil storage chamber (2) is provided with a lubricating oil hopper (6) with an isosceles trapezoid structure, the cross section of which is wide at the top and narrow at the bottom, and the bottom of the lubricating oil hopper (6) is provided with an oil inlet (7) communicated with the oil storage chamber (2);

the top end of the lubricating oil hopper (6) is provided with a splash-proof sealing structure, the splash-proof sealing structure comprises a first splash guard (8) which is communicated with the upper surface of the lubricating oil hopper (6) and is matched with the radian of the upper surface of the lubricating oil hopper (6), and the left side and the right side of the bottom of the first splash guard (8) are provided with second rotating holes (9) matched with the radian of the outer wall of the rotating shaft (3); the top end of the first splash baffle (8) extends to the top end of the gear (4), and the top end of the first splash baffle (8) is connected with a second splash baffle (10); the second splash guard (10) is of an isosceles trapezoid structure with a narrow upper cross section and a wide lower cross section.

2. A high-sealability gearbox according to claim 1 wherein: and oil absorption sponge layers (11) are arranged on the surfaces, opposite to the gear (4), of the first splash baffle (8) and the second splash baffle (10).

3. A high-sealability gearbox according to claim 1 wherein: and a first sealing washer (12) and a second sealing washer (13) are respectively arranged on the rotating shaft (3) in the first rotating hole (5) and the second rotating hole (9).

4. A high-sealability gearbox according to claim 3 wherein: and a first limiting groove (14) which is larger than the width of the first rotary hole (5) is formed in the outer ring of the first sealing washer (12).

5. A high-sealability gearbox according to claim 3 wherein: and a second limiting groove (15) which is larger than the width of the second rotary hole (9) is formed in the outer ring of the second sealing washer (13).

6. A high-sealability gearbox according to claim 1 wherein: the top end of the gear box body (1) is provided with a sealing cover (16) for sealing the gear box body.