CN213270936U - Gear box - Google Patents

Abstract

The utility model relates to a gear box, which comprises a box body, wherein the box body is provided with a first cover plate, a second cover plate and a side plate connected between the first cover plate and the second cover plate, a first oil baffle block is convexly arranged on the inner side wall between the first cover plate and the side plate, first transverse holes are arranged on the side plate and the first oil baffle block, and the first transverse holes run through the side plate and part of the first oil baffle block; the first cover plate and the first oil baffle block are provided with first vertical holes, and the first vertical holes are communicated with the inner cavity of the box body; the first transverse hole is communicated with the first vertical hole in a crossing way; the first blocking piece is used for blocking part of the first vertical hole and is arranged opposite to the inner cavity of the box body; the breather valve is installed on the first transverse hole, and part of the breather valve is located outside the box body. Through the gear box of this structure, can reduce the whole height behind the gear box installation breather valve, use the oil baffle piece to replace the oil baffle plate of installing in the box simultaneously, eliminated because the oil baffle plate drops and the damage risk that causes the gear box.

Description

Gear box

Technical Field

The utility model relates to a gear box especially relates to a side-mounting has gear box of breather valve.

Background

In order to communicate the reduction box with the atmosphere to maintain normal pressure, a breather valve is usually installed on the reduction box, and the main body of the breather valve is in the atmosphere environment to realize the communication between the outside and the air inside the reduction box.

The air breather valve of a common industrial gearbox is arranged on the top of the gearbox, so that the overall height of the gearbox is increased. In some applications, the height space of the site is limited, which requires the overall height of the gearbox to be limited. One current solution is to reduce the overall height of the gear box by installing the air breather valve to the side of the gear box, thus requiring an oil baffle plate to be installed inside the box to prevent the breather valve from leaking oil, and installing the oil baffle plate inside the box to make it possible for the oil baffle plate fixing member to loosen and fall off due to the stirring of the lubricating oil by the gear operation, thereby causing irreversible damage to the gear box.

SUMMERY OF THE UTILITY MODEL

The present invention aims to solve the above and/or other technical problems and to provide a gear box.

The utility model provides a gear box, include:

the oil separator comprises a box body and a first oil baffle block, wherein the box body is provided with a first cover plate, a second cover plate and a side plate connected between the first cover plate and the second cover plate, a first oil baffle block is convexly arranged on the inner side wall between the first cover plate and the side plate, first transverse holes are formed in the side plate and the first oil baffle block, and the first transverse holes penetrate through the side plate and part of the first oil baffle block; the first cover plate and the first oil baffle block are provided with first vertical holes, and the first vertical holes are communicated with the inner cavity of the box body; the first transverse hole is communicated with the first vertical hole in a crossing way;

the first blocking piece blocks part of the first vertical hole and is arranged opposite to the inner cavity of the box body;

and the breather valve is arranged on the first transverse hole, and part of the breather valve is positioned outside the box body.

The breather valve is arranged on the side edge of the gear box, so that the overall height of the gear box is reduced, and the requirement of strict limitation on the overall height of the gear box in some application scenes is met; on the other hand, the gear box of the structure uses the oil blocking block to block the lubricating oil stirred up by the rotation of the gear to the maximum extent, and an oil blocking plate does not need to be installed in the box body, so that the risk that the gear box is damaged due to the falling of the oil blocking plate is eliminated.

Further, first horizontal hole becomes 90 degrees contained angles with first vertical hole, and such structure makes the fender oil effect better, and oil is more difficult to flow outside the box through the breather valve.

Further, a second oil retaining block is convexly arranged on the inner side wall of a second cover plate and the side plate of the box body, a second transverse hole is formed in the side plate of the box body and the second oil retaining block, and the second transverse hole penetrates through the side plate and part of the second oil retaining block; a second cover plate and a second oil retaining block are provided with second vertical holes, and the second vertical holes are communicated with the inner cavity of the box body; the second transverse hole is communicated with the second vertical hole in a crossing way; the second blocking piece blocks part of the second vertical hole and is arranged opposite to the inner cavity of the box body; the third plug blocks the second transverse bore.

Therefore, a structure capable of directly installing the breather valve on the side is reserved in the lower box body. When some application scenes need to overturn the gear box up and down for use, the upper box body is turned into the lower box body due to the overturning and bears lubricating oil, so that the breather valve on the side edge of the upper box body (namely the overturned lower box body) can not be used any more, and the breather valve can be directly and conveniently installed on the side edge of the upper end of the gear box by utilizing the structure of the lower box body (the overturned upper box body).

Furthermore, a 90-degree included angle is formed between the second transverse hole and the second vertical hole.

Furthermore, a breather valve protective cover is arranged on the outer side of the side wall of the box body and used for protecting the part, arranged outside the box body, of the breather valve from being smashed by falling objects.

Further, the gear box is a reduction gearbox.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein the content of the first and second substances,

FIG. 1 is a schematic perspective view illustrating a gearbox according to an exemplary embodiment;

FIG. 2 is a partial cross-sectional view of the gearbox shown in FIG. 1.

Description of the reference numerals

100 gear box

10 case body

11 first cover plate

12 second cover plate

13 side plate

14 first oil baffle block

131 first transverse hole

111 first vertical hole

20 first plug member

30 breather valve

15 second oil retaining block

132 second transverse hole

121 second vertical hole

21 second plug member

22 third plug member

40 breather valve protective cover

401 first shielding face

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.

FIG. 1 is a schematic perspective view illustrating a gearbox according to an exemplary embodiment, and FIG. 2 is a partial cross-sectional view of the gearbox shown in FIG. 1.

According to the exemplary embodiment shown in fig. 1 and 2, the gearbox 100 comprises a box 10, a first obturating member 20 and a breather valve 30.

The box body 10 is provided with a first cover plate 11, a second cover plate 12 and a side plate 13 connected between the first cover plate 11 and the second cover plate 12, a first oil blocking block 14 is convexly arranged on the inner side wall between the first cover plate 11 and the side plate 13, a first transverse hole 131 is formed in the side plate 13 and the first oil blocking block 14, and the first transverse hole 131 penetrates through the side plate 13 and part of the first oil blocking block 14. A first vertical hole 111 is formed in the first cover plate 11 and the first oil baffle block 14, and the first vertical hole 111 is communicated with the inner cavity of the box body 10; the first transverse hole 131 is in cross communication with the first vertical hole 111.

And a first blocking member 20 blocking a portion of the first vertical hole 111 and disposed opposite to the inner cavity of the case 10.

And a breather valve 30 mounted on the first transverse hole 131 and partially located outside the case 10.

Specifically, the side plate 13 includes a side plate of the upper tank portion and a side plate of the lower tank portion, and the first oil blocking block 14 is a solid block-shaped structure and is arranged at an inner side wall between the first cover plate 11 and the side plate of the upper tank portion; the first oil deflector 14 is integrally formed with the first cover plate 11 and the side plate of the upper case portion.

The first blocking piece 20 is used for blocking part of the first vertical hole 111, mainly the first vertical hole 111, on the surface part of the first cover plate 11 to prevent external falling objects from entering the inner cavity of the gearbox body, meanwhile, the position that the lower end of the first blocking piece 20 extends to cannot exceed the cross communication position of the first vertical hole 111 and the first transverse hole 131, and cannot block the cross communication position, and only then, the gas in the inner cavity of the gearbox body can be discharged out of the gearbox body from the first transverse hole through the breather valve. The first obturating member 20 may be a metal plug, which is sealed in a generally sealing manner with the first vertical hole 111.

The breather valve 30 is arranged on the first transverse hole 131 and is partially positioned outside the box body 10; the breather valve 30 is mounted on the housing by engaging a screw hole provided in the housing side plate 13 with a screw, and the mounting manner of the breather valve 30 is not limited thereto.

Furthermore, the first transverse hole 131 and the first vertical hole 111 in the gearbox 100 are at an angle of 90 degrees, the first transverse hole 131 is horizontally disposed, and the first vertical hole 111 is vertically disposed.

Furthermore, the gearbox 100 further includes a second oil stop 15, a second blocking member 21 and a third blocking member 22 protruding from the inner side walls of the second cover plate 12 and the side plate 13.

Wherein, a second transverse hole 132 is opened on the box body side plate 13 and the second oil stopping block 15, and the second transverse hole 132 penetrates through the side plate 13 and a part of the second oil stopping block 15. And second vertical holes 121 are formed in the second cover plate 12 and the second oil stop block 15, and the second vertical holes 121 are communicated with the inner cavity of the box body 10. The second transverse hole 132 is in cross communication with the second vertical hole 121; a second blocking member 21 blocking part of the second vertical hole 121 and arranged opposite to the inner cavity of the box body 10; a third obturating member 22, obturating the second transverse hole.

Specifically, the second oil stopper 15 is a solid block-shaped structure, and is disposed on an inner side wall between the second cover plate 12 and the side plate of the lower tank portion, and the second oil stopper 15 is integrally formed with the second cover plate 12 and the side plate of the lower tank portion.

The second blocking member 21 is used for blocking a part of the second vertical hole 121, and the third blocking member 22 is used for blocking the second transverse hole, so that the lubricating oil in the case body does not flow out of the second transverse hole 132 and the second vertical hole 121 at the lower end of the gear case 100 when the breather valve 30 installed in the first transverse hole 131 is activated; in some application scenarios, if two gearboxes are used in combination, one of the gearboxes 100 needs to be turned upside down, at this time, the second cover plate 12 and the second oil blocking block 15 convexly arranged on the inner side walls of the second cover plate 12 and the side plate 13 are turned over to the upper part of the gearbox 100, at this time, only the third blocking member 22 blocked in the second transverse hole 132 needs to be taken away, and the breather valve 30 is installed, so that the box body 10 can also realize the function of installing the breather valve 30 on the side edge of the gearbox 100; at the moment, the second blocking piece 21 is used for partially blocking the second vertical hole 121 and preventing external falling objects from entering the inner cavity of the box body 10 of the gearbox 100; it should be noted that the second blocking member 21 mainly blocks the second vertical hole 121 at the surface part of the second cover plate 12, and the lower end thereof extends to a position which cannot exceed the intersection communication between the second vertical hole 121 and the second transverse hole 132 and cannot block the intersection communication, and only then, in this usage scenario, the gas in the inner cavity of the box can be discharged from the second transverse hole 132 to the outside of the box through the breather valve. The second obturating member 21 or the third obturating member 22 may be a metal plug, which is sealed in a general sealing manner with the second vertical hole 121 or the second transverse hole 132.

Furthermore, the second transverse hole 132 and the second vertical hole 121 are designed to form an included angle of 90 degrees, the second transverse hole 132 is horizontally disposed, and the second vertical hole 121 is vertically disposed.

The working principle of the gear box of the embodiment is as follows: under the general use condition, the breather valve 30 installed in the first transverse hole 131 is started, the first vertical hole 111, the second transverse hole 132 and the second vertical hole 121 are blocked by the blocking piece, when the gearbox 100 works, the internal gear of the box rotates to stir the lubricating oil in the lower cavity, most of the splashed lubricating oil is blocked by the first oil blocking block 14 and falls back to the cavity, even if a small amount of lubricating oil is thrown into the first vertical hole, the lubricating oil also falls back to the cavity due to gravity, and the lubricating oil cannot enter the first transverse hole 131 where the breather valve is located to cause the leakage outside the box, so that the effects that the breather valve works normally and the oil is not easy to leak are achieved. In some application scenarios that the gear box 100 needs to be turned upside down for use, for example, when two gear boxes are used in combination, one of the gear boxes 100 needs to be turned upside down for use, at this time, the second cover plate 12 and the second oil blocking piece 15 convexly arranged on the inner side walls of the second cover plate 12 and the side plate 13 are turned to the upper part of the gear box, at this time, the third blocking piece 22 blocked in the second transverse hole 132 is taken down, the breather valve is installed in the second transverse hole 132, the first transverse hole 131 turned to the lower end of the gear box 100 is blocked by the fourth blocking piece to prevent the oil in the gear box body from flowing out from the first transverse hole, when the gear box works, the gear in the box body rotates to stir the lubricating oil in the cavity, most of the lubricating oil is blocked by the second oil blocking piece and falls back into the cavity, even if a small amount of lubricating oil is thrown into the second vertical hole 121, the, and the breather valve can not enter the second transverse hole where the breather valve is located to cause the oil to leak out of the box body, so that the normal work of the breather valve is realized, and the oil leakage is not easy to occur.

According to the gear box of the exemplary embodiment shown in fig. 1 and 2, a breather valve protection cover 40 is arranged outside the box body side plate 13; the breather valve protection cover 40 is composed of three shielding surfaces, wherein a first shielding surface 401 is arranged perpendicular to the box body side plate 13, and shields the breather valve 30 under the first shielding surface 401, so that the breather valve 30 is prevented from being damaged by falling objects outside the gear box.

According to the gearbox of the exemplary embodiment shown in fig. 1 and 2, the gearbox is a reduction gearbox.

The utility model discloses a gear box has following advantage at least:

1. according to the gear box provided by the utility model, the breather valve is arranged at the side edge of the gear box, thereby reducing the overall height of the gear box installation and meeting the requirement of strict limitation on the overall height of the gear box under some application scenes; on the other hand, the gear box of the structure uses the oil blocking block to block the lubricating oil stirred up by the rotation of the gear to the maximum extent, and an oil blocking plate does not need to be installed in the box body, so that the risk that the gear box is damaged due to the falling of the oil blocking plate is eliminated.

2. According to the utility model discloses a gear box, the fender oil piece has played fine fender oil effect, simultaneously to the first vertical hole and the first horizontal hole that become the setting of 90 degrees angles, and the vertical hole of second and the horizontal hole of second, the lubricating oil that the gear revolve stirs is difficult to enter into first vertical hole or the vertical hole of second, even oil drips enter into first vertical hole or the vertical hole of second, because the reason of 90 degrees contained angles, also difficult entering into first horizontal hole or the vertical hole of second so that leak the box outside.

3. According to the utility model discloses a gear box, owing to be provided with the structure that can supply at the side-mounting breather valve simultaneously at last box and lower box, consequently under some application scenes that need overturn the use from top to bottom with the gear box, can conveniently realize above advantage 1 and advantage 2.

It should be understood that although the present description has been described in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.

The above are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention. Any equivalent changes, modifications and combinations that may be made by those skilled in the art without departing from the spirit and principles of the invention should be considered within the scope of the invention.

Claims (6)

1. A gearbox (100) comprising:

the oil separator comprises a box body (10), wherein the box body (10) is provided with a first cover plate (11), a second cover plate (12) and a side plate (13) connected between the first cover plate (11) and the second cover plate (12), a first oil blocking block (14) is convexly arranged on the inner side wall between the first cover plate (11) and the side plate (13), a first transverse hole (131) is formed in the side plate (13) and the first oil blocking block (14), and the first transverse hole (131) penetrates through the side plate (13) and part of the first oil blocking block (14); a first vertical hole (111) is formed in the first cover plate (11) and the first oil retaining block (14), and the first vertical hole (111) is communicated with the inner cavity of the box body (10); the first transverse hole (131) is communicated with the first vertical hole (111) in a cross way;

a first blocking member (20) blocking part of the first vertical hole (111) and arranged opposite to the inner cavity of the box body (10);

and the breather valve (30) is arranged on the first transverse hole (131) and is partially positioned outside the box body (10).

2. The gearbox (100) of claim 1, wherein the first transverse bore (131) is at a 90 degree angle to the first vertical bore (111).

3. The gearbox (100) of claim 1, wherein a second oil baffle (15) is protruded from the inner side walls of the second cover plate (12) and the side plate (13), a second transverse hole (132) is formed in the side plate (13) and the second oil baffle (15), and the second transverse hole (132) penetrates through the side plate (13) and a part of the second oil baffle (15); a second vertical hole (121) is formed in the second cover plate (12) and the second oil retaining block (15), and the second vertical hole (121) is communicated with the inner cavity of the box body (10); the second transverse hole (132) is in cross communication with the second vertical hole (121);

a second blocking member (21) for blocking part of the second vertical hole (121) and arranged opposite to the inner cavity of the box body (10);

a third plug (22) that plugs the second transverse hole (132).

4. The gearbox (100) of claim 3, with the second transverse bore (132) being at a 90 degree angle to the second vertical bore (121).

5. The gearbox (100) according to claim 1, characterized in that a breather valve shield (40) is provided outside the box side plate (13).

6. The gearbox (100) according to claim 1 or 3, characterized in that it is a reduction gearbox.

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