CN217029882U - Oil block and speed reducer - Google Patents
Oil block and speed reducer Download PDFInfo
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- CN217029882U CN217029882U CN202220920965.2U CN202220920965U CN217029882U CN 217029882 U CN217029882 U CN 217029882U CN 202220920965 U CN202220920965 U CN 202220920965U CN 217029882 U CN217029882 U CN 217029882U
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- oil
- plug
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- speed reducer
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Abstract
The utility model provides an oil plug and a speed reducer, and relates to the technical field of automobile parts, wherein the oil plug is used for the speed reducer, an oil cavity is arranged in the speed reducer, and an oil hole for communicating the outside with the oil cavity is formed in the speed reducer; the oil block includes: a plug body and a plug cap. The plug body is arranged in the oil cavity, a through hole is formed in the plug body, two ends of the through hole are respectively communicated with the oil cavity and the outside, and the plug cap is arranged at the through hole and used for opening or closing the through hole. And a separation pipe is further arranged in the plug body, two ends of the separation pipe are respectively communicated with the oil cavity and the outside, and the separation pipe can separate gas from oil. Through set up the cock body in oilhole department, can be convenient for the cock cap installation. Simultaneously, still be provided with fluid and gas separation pipe in the cock body, can realize the effect of shutoff oilhole and ventilation simultaneously, and then reduce the degree of difficulty and the manufacturing cost of the casing design of reduction gear to and reduce the overall size of reduction gear.
Description
Technical Field
The utility model relates to the technical field of automobile parts, in particular to an oil plug and a speed reducer.
Background
At present, the speed reducer of the automobile is generally provided with an oil plug for adding cooling lubricating oil and a vent plug, wherein a labyrinth for blocking oil is generally designed near an air inlet of the vent plug. The oil filling plug is unscrewed, so that oil filling operation can be performed on the speed reducer, and the vent plug plays roles of exhausting air, balancing internal and external pressures of the speed reducer and isolating water vapor in the external environment while realizing oil blocking through a labyrinth for oil blocking.
However, the provision of the oil-adding plug and the breather plug while on the speed reducer may occupy two arrangement positions on the casing of the speed reducer, while also requiring the labyrinth to be designed on the casing of the speed reducer to block the oil overflowing when exhausting from the breather plug, thus increasing the difficulty of the casing design and the overall size of the speed reducer to a greater extent.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the following problems: the oil plug and the labyrinth split type arrangement of the existing speed reducer lead to larger design difficulty of the speed reducer shell, and increase the processing procedure of the speed reducer shell in the production process, which leads to higher cost.
(II) technical scheme
In order to solve the technical problem, an embodiment of the utility model provides an oil plug for a speed reducer, wherein an oil cavity is arranged in the speed reducer, and an oil hole for communicating the outside with the oil cavity is formed in the speed reducer; the oil block comprises: a plug body and a plug cap;
the plug body is arranged in the oil cavity, a through hole is formed in the plug body, two ends of the through hole are respectively communicated with the oil cavity and the outside, and the plug cap is arranged at the through hole and used for opening or closing the through hole;
and a separating pipe is further arranged in the plug body, two ends of the separating pipe are respectively communicated with the oil cavity and the outside, and the separating pipe can separate gas from oil.
According to an embodiment of the present invention, further, a plurality of bending portions are disposed on the separation tube.
According to an embodiment of the utility model, further, a separation chamber capable of separating air from oil is connected to the separation pipe.
According to an embodiment of the present invention, further, the separation chamber is provided on the plug body;
the separating pipe comprises a first pipe section and a second pipe section, one end of the first pipe section is communicated with the oil cavity, and the other end of the first pipe section is communicated with the separating cavity; one end of the second pipe section is communicated with the separation cavity, and the other end of the second pipe section is communicated with the outside.
According to an embodiment of the present invention, further, the through hole includes a first hole section and a second hole section, the first hole section is close to the oil chamber, the second hole section is close to the outside, and a cross-sectional area of a cross section of the first hole section is smaller than a cross-sectional area of a cross section of the second hole section;
the plug cap includes a first body for plugging the first bore section, and a second body for plugging the second bore section;
when the plug cap is connected with the plug body, a gap is formed between the bottom wall of the second hole section and the end face of the second main body, and the gap forms the separation cavity.
According to an embodiment of the present invention, further, the apparatus further comprises a gasket;
the gasket is located the outer fringe department of oilhole, the lateral wall of cock body is equipped with the clamping ring, the clamping ring with the gasket offsets.
According to an embodiment of the present invention, further, the material of the plug cap is rubber.
According to an embodiment of the present invention, further, a one-way valve is further disposed at a port of the second pipe section near the outside.
According to an embodiment of the present invention, further, the one-way valve includes a film;
one side of the rubber sheet is hinged with the plug cap, and the rubber sheet blocks a port of the second pipe section close to the outside.
The utility model further provides a speed reducer which comprises the oil plug.
The utility model has the beneficial effects that:
the oil plug provided by the utility model is used for a speed reducer, an oil cavity is arranged in the speed reducer, and an oil hole for communicating the outside with the oil cavity is formed in the speed reducer; the oil block comprises: a plug body and a plug cap. The plug body is arranged in the oil cavity, a through hole is formed in the plug body, two ends of the through hole are respectively communicated with the oil cavity and the outside, and the plug cap is arranged at the through hole and used for opening or closing the through hole. And a separating pipe is also arranged in the plug body, two ends of the separating pipe are respectively communicated with the oil cavity and the outside, and the separating pipe can separate gas from oil.
The oil hole is provided with the plug body, so that the plug cap can be conveniently mounted. Meanwhile, the oil and gas separation pipe is arranged in the plug body, so that the effects of plugging the oil hole and ventilating can be realized simultaneously. Through above-mentioned structure, set up a hole on the casing of reduction gear and can realize the function of oilhole and gas pocket promptly, compare with traditional reduction gear casing, the casing design degree of difficulty of the reduction gear in this application is littleer, and the overall dimension is also less relatively. Meanwhile, the processing procedure of the speed reducer shell in the production process is also reduced, and the production cost is reduced.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of an oil plug and a speed reducer provided by an embodiment of the utility model;
fig. 2 is a perspective view of the oil plug and the speed reducer provided by the embodiment of the utility model.
Icon: 100-an oil chamber; 110-oil hole;
200-a plug body; 210-a via; 211 — a first bore section; 212-a second bore section; 221-a first tube section; 222-a second tube segment; 223-a bending part; 230-a separation chamber; 240-pressure ring;
300-a plug cap; 310-a first body; 320-a second body; 330-film;
400-a gasket.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be apparent that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without making any creative effort based on the embodiments in the present invention, belong to the protection scope of the present invention.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, which are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
It should be noted that, in the description of the present invention, the terms "connected" and "mounted" should be understood broadly, for example, they may be fixed, detachable or integrated; can be directly connected or connected through an intermediate medium; either mechanically or electrically. The specific meanings of the above terms in the present invention can be understood according to specific situations by those of ordinary skill in the art.
An embodiment of the present invention provides an oil plug, which is mainly used for a speed reducer, and particularly, for plugging an oil hole 110 of the speed reducer.
In this embodiment, the decelerator includes an oil chamber 100, cooling lubricant is stored in the oil chamber 100, and an oil hole 110 for injecting oil into the oil chamber 100 is provided in a casing of the decelerator. The oil block is provided at the oil hole 110 for closing the oil hole 110.
As shown in fig. 1 to 2, the oil plug includes a plug body 200 and a plug cap 300.
Wherein the plug body 200 is provided at the oil hole 110 for forming a coupling structure to the plug cap 300 at the oil hole 110. A through hole 210 is formed in the plug body 200 with both ends respectively communicating with the oil chamber 100 and the outside, and preferably, the axis of the through hole 210 is parallel to the axis of the oil hole 110. The plug cap 300 is provided at the through-hole 210 for opening or closing the through-hole 210.
When the pack 300 is coupled to the through-hole 210, the through-hole 210 is closed. When the pack 300 is separated from the through-hole 210, the through-hole 210 is opened.
Meanwhile, a separation pipe is further arranged in the plug body 200, and two ends of the separation pipe are respectively communicated with the outside and the oil chamber 100.
Preferably, in the present embodiment, the separation tube is disposed on the circumferential side of the through-hole 210.
In the working process of the speed reducer, the temperature of engine oil can be gradually increased under the action of gears inside the speed reducer, and the temperature of air inside the oil cavity 100 can be increased along with the temperature of the engine oil, so that the pressure inside the oil cavity 100 is increased. By providing a separation tube communicating the oil chamber 100 with the outside, the pressure of the oil chamber 100 and the outside can be balanced, and the temperature inside the oil chamber 100 is prevented from being too high. Meanwhile, in order to prevent the cooling lubricant oil in the oil chamber 100 from overflowing with the high-temperature air, the separation pipe also has a function of separating gas from the oil.
In this embodiment, the plug body 200 is disposed at the oil hole 110, so that the plug cap 300 can be conveniently mounted. Meanwhile, the oil-gas separation pipe is further arranged in the plug body 200, so that the effects of blocking the oil hole 110 and ventilating can be achieved at the same time, an air hole does not need to be formed in the oil cavity 100 alone, the difficulty in designing the shell of the speed reducer is reduced, the overall size of the speed reducer is reduced, and the cost of the speed reducer in the production process is reduced.
Preferably, in this embodiment, the plug cap 300 is an interference fit with the plug body 200.
Optionally, in this embodiment, the plug cap 300 is made of rubber to achieve interference fit and prevent oil from flowing out through the through hole 210.
According to the oil plug provided by the embodiment of the utility model, as shown in fig. 1 to 2, the separation pipe is provided with a plurality of bending parts 223. In the present embodiment, by providing the bent portion 223 on the separation pipe, a path of movement of a mixture of oil and air is increased within a limited distance, so that the oil can be separated from the air by gravity.
Optionally, in this embodiment, the separation tube may also be a spiral tube disposed in the plug body 200, which also can achieve the purpose that the oil can be separated from the air under the action of gravity in this embodiment.
Of course, the separating tube, whether it is a spiral tube or a bent tube, surrounds the circumference of the through-hole 210.
In this embodiment, as shown in fig. 1 to 2, in order to improve the separation effect, a separation chamber 230 for accelerating the separation of oil and air is further connected to the separation pipe.
The separation chamber 230, that is, a space disposed on the separation pipe, performs a preliminary separation of oil from air at the first pipe section 221, and the oil and the air after the preliminary separation reach the separation chamber 230, so that the oil and the air are further separated by gravity.
In this embodiment, to reduce the difficulty of machining and facilitate the fit between the plug cap 300 and the plug body 200, the separation chamber 230 is provided on the plug body 200.
Of course, in this embodiment, the separation chamber 230 may also be provided on the plug cap 300, but it is necessary to align the separation chamber 230 with the separation tube when the plug cap 300 is assembled. It is relatively cumbersome to install the pack 300.
As shown in fig. 1 to 2, the separation pipe includes two parts, wherein a pipe section adjacent to the oil chamber 100 is a first pipe section 221, and one end of the first pipe section 221 communicates with the oil chamber 100 and the other end communicates with the separation chamber 230. The pipe section away from the oil chamber 100 is a second pipe section 222, and one end of the second pipe section 222 is communicated with the separation chamber 230, and the other end is communicated with the outside.
In this embodiment, the separation chamber 230 may be an annular chamber disposed in the plug body 200 around the circumference of the through hole 210.
However, for the convenience of production and the reduction of production cost, the separation chamber 230 is disposed in the through hole 210, and as shown in fig. 1 to 2, the through hole 210 includes two parts, wherein a section adjacent to the oil chamber 100 is a first hole section 211; the section far away from the oil chamber 100 and the section near the outside is the second hole section 212, and in the present embodiment, the cross-sectional area of the cross section of the first hole section 211 is smaller than that of the cross section of the second hole section 212.
Accordingly, the plug cap 300 includes a first body 310 for closing off the first bore section 211 and a second body 320 for closing off the second bore section 212. When the plug cap 300 is connected to the plug body 200, a gap is formed between the bottom wall of the second bore section 212 and the end face of the second body 320, and as shown in fig. 1 to 2, the separation chamber 230 is formed by this gap.
And the port of the first tube section 221, which is far from the oil chamber 100, and the port of the second tube section 222, which is far from the outside, are located on the side wall at the gap of the second bore section 212, so that both the first tube section 221 and the second tube section 222 can communicate with the separation chamber 230.
In the present embodiment, the second bore section 212 has a length L1The length of the second body 320 is L2Wherein L is1＞L2. Meanwhile, a limit ring is formed on the plug body 200, and when the plug cap 300 is connected to the plug body 200, the limit ring abuts against the outer edge of the through hole 210, so that the second hole section 212 cannot continuously extend into the second hole section 212, and the gap is formed in the second hole section 212.
In actual use, in order to improve the connection strength between the plug body 200 and the oil hole 110, the plug body 200 and the oil hole 110 are connected by a screw. A female screw structure is formed on an inner wall of the oil hole 110, and a male screw structure is formed on a side wall of the plug body 200. The plug 200 is screwed into the oil hole 110.
Meanwhile, in order to prevent leakage from the oil hole 110, a gasket 400 is provided at a connection of the oil hole 110 and the plug body 200.
As shown in fig. 1 to 2, a gasket 400 is provided at an outer edge of the oil hole 110, and a pressing ring 240 for compacting the gasket 400 is provided on a side wall of the plug body 200. After the plug 200 is connected to the oil hole 110, the pressing ring 240 abuts against the gasket 400.
In this embodiment, in order to prevent impurities such as dust from entering the separating pipe, a check valve is separately disposed at a port of the second pipe section 222 near the outside. Through setting up the check valve, outside air can't enter into in the oil pocket 100 through the separator tube, and the high temperature air in the oil pocket 100 has certain pressure, can jack-up the check valve to realize the exhaust.
Specifically, as shown in fig. 1 to 2, the one-way valve includes a film 330 disposed on the plug body 200.
One end of the film 330 is hinged to the plug cap 300, and the film 330 is used for sealing the port of the second tube segment 222 close to the outside.
When exhausting, the high-pressure hot air can jack up the film 330 to ensure the normal operation of exhausting. Under normal conditions, the rubber sheet 330 seals the port of the end of the second pipe section 222 away from the oil chamber 100, so as to ensure that outside air cannot enter the oil chamber 100.
Optionally, in this embodiment, the check valve may also be a ball check valve disposed in the second pipe segment 222.
In the oil plug of the present embodiment, during assembly, the gasket 400 is firstly sleeved on the plug body 200, or is disposed at the outer edge of the oil hole 110, and the plug body 200 is screwed into the oil hole 110. And then the plug cap 300 is plugged into the through hole 210. When the oil chamber 100 needs to be replaced or cooling oil is injected into the oil chamber, the plug cap 300 is pulled out.
In the present embodiment, it is preferable that the film 330 is disposed along the circumferential side of the plug cap 300, that is, when the plug cap 300 is inserted, the port of the second tube section 222 close to the outside can be blocked by inserting the plug cap 300 at any angle without adjusting the angle of the plug cap 300.
Another embodiment of the utility model also provides a speed reducer, which comprises the oil plug of the embodiment.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (10)
1. An oil plug is used for a speed reducer, an oil cavity (100) is arranged in the speed reducer, and an oil hole (110) which is communicated with the outside and the oil cavity (100) is formed in the speed reducer; it is characterized in that the oil plug comprises: a plug body (200) and a plug cap (300);
the plug body (200) is arranged in the oil hole (110), a through hole (210) is formed in the plug body (200), two ends of the through hole (210) are respectively communicated with the oil cavity (100) and the outside, and the plug cap (300) is arranged at the through hole (210) and used for opening or closing the through hole (210);
still be equipped with the separator tube in the cock body (200), the both ends of separator tube respectively with oil pocket (100) and external intercommunication, the separator tube can make gas and fluid separation.
2. The oil plug of claim 1, wherein the separator tube is provided with a plurality of bends (223).
3. The oil plug of claim 2, wherein a separation chamber (230) capable of separating air from oil is further connected to the separation pipe.
4. Oil dam according to claim 3, characterized in that the separation chamber (230) is provided on the plug body (200);
the separation pipe comprises a first pipe section (221) and a second pipe section (222), one end of the first pipe section (221) is communicated with the oil chamber (100), and the other end of the first pipe section is communicated with the separation chamber (230); one end of the second pipe section (222) is communicated with the separation cavity (230), and the other end of the second pipe section is communicated with the outside.
5. The oil dam of claim 4, wherein the through-hole (210) comprises a first bore section (211) and a second bore section (212), the first bore section (211) being adjacent to the oil chamber (100), the second bore section (212) being adjacent to the outside, the cross-sectional area of the cross-section of the first bore section (211) being smaller than the cross-sectional area of the cross-section of the second bore section (212);
the plug cap (300) comprising a first body (310) for plugging the first bore section (211), and a second body (320) for plugging the second bore section (212);
when the plug cap (300) is connected with the plug body (200), a gap is formed between the bottom wall of the second hole section (212) and the end surface of the second main body (320), and the gap forms the separation cavity (230).
6. The oil dam of claim 1, further comprising a gasket (400);
the gasket (400) is arranged at the outer edge of the oil hole (110), a pressing ring (240) is arranged on the side wall of the plug body (200), and the pressing ring (240) is abutted to the gasket (400).
7. The oil plug of claim 1, wherein the plug cap (300) is made of rubber.
8. An oil plug as claimed in any one of claims 4 and 5, characterized in that a one-way valve is arranged at a port of the second pipe section (222) close to the outside.
9. The oil dam of claim 8, wherein the one-way valve comprises a film (330);
one side of the film (330) is hinged with the plug cap (300), and the film (330) seals the port of the second pipe section (222) close to the outside.
10. A reducer comprising an oil dam according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220920965.2U CN217029882U (en) | 2022-04-20 | 2022-04-20 | Oil block and speed reducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220920965.2U CN217029882U (en) | 2022-04-20 | 2022-04-20 | Oil block and speed reducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217029882U true CN217029882U (en) | 2022-07-22 |
Family
ID=82418052
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220920965.2U Active CN217029882U (en) | 2022-04-20 | 2022-04-20 | Oil block and speed reducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217029882U (en) |
-
2022
- 2022-04-20 CN CN202220920965.2U patent/CN217029882U/en active Active
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