CN215524926U - Blocking piece for detecting air tightness of front shell of transmission - Google Patents
Blocking piece for detecting air tightness of front shell of transmission Download PDFInfo
- Publication number
- CN215524926U CN215524926U CN202120928529.5U CN202120928529U CN215524926U CN 215524926 U CN215524926 U CN 215524926U CN 202120928529 U CN202120928529 U CN 202120928529U CN 215524926 U CN215524926 U CN 215524926U
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- rubber sleeve
- cylindrical rubber
- inner core
- transmission
- annular
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 29
- 230000000903 blocking effect Effects 0.000 title abstract description 11
- 108090000565 Capsid Proteins Proteins 0.000 claims description 4
- 230000006978 adaptation Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 15
- 238000005034 decoration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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Abstract
The utility model relates to a blocking piece for detecting the air tightness of a front shell of a transmission, which comprises a cylindrical rubber sleeve and an inner core adhered to the middle part of the cylindrical rubber sleeve, wherein the diameter of the cylindrical rubber sleeve is matched with the inner diameter of an oil blocking hole of the front shell of the transmission, the inner core is hollow, a plurality of air vents are arranged at the lower part of the inner core, the air vents are distributed at equal angles around the axis of the inner core, the lower section of the inner core extends into the cylindrical rubber sleeve, an annular cavity is arranged at the periphery of the air vents of the cylindrical rubber sleeve, the cylindrical rubber sleeve is provided with a vent groove for communicating the air vents with the annular cavity, and an annular clamping shoulder is arranged at the upper section of the cylindrical rubber sleeve. The oil plugging device is simple in structure, the oil plugging hole in the front shell of the transmission is plugged by the inflatable cylindrical rubber sleeve, the labor intensity of workers can be reduced, the working efficiency is improved, the annular clamping shoulder can play a positioning role, and the cylindrical rubber sleeve is prevented from excessively extending into the oil plugging hole in the front shell of the transmission.
Description
Technical Field
The utility model relates to the technical field of air tightness detection, in particular to a blocking piece for detecting the air tightness of a front shell of a transmission.
Background
A transmission is a mechanism for changing the speed and torque from an engine, which can change the ratio of the output shaft to the input shaft, either fixed or in steps, also known as a gearbox. The transmission mechanism in the speed changer is mostly driven by common gears, and also driven by planetary gears. When the transmission runs, gear oil in the transmission cannot leak out, so that the air tightness of the transmission front shell needs to be detected after the transmission front shell is machined. When the existing process is used for detecting the air tightness of the front transmission shell, in order to prevent gas from overflowing through an oil blocking hole of the front transmission shell, a thread gauge sleeved with an O-shaped ring needs to be screwed to the oil blocking hole, but the mode is low in efficiency and the labor intensity of workers is high.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem of overcoming the defects in the prior art and provides a blocking piece for detecting the air tightness of a front shell of a transmission.
The utility model is realized by the following technical scheme:
the utility model provides a derailleur procapsid gas tightness detects uses stifled piece, includes cylindricality gum cover and bonds in the inner core at cylindricality gum cover middle part, cylindricality gum cover diameter and derailleur procapsid oil plug hole internal diameter looks adaptation, inner core cavity and inner core lean on the lower part position to be equipped with a plurality of blow vents, a plurality of blow vents distribute around angles such as inner core axis, the inner core hypomere stretches into in the cylindricality gum cover, the cylindricality gum cover is equipped with the annular chamber in the blow vent periphery, the cylindricality gum cover is equipped with the groove of ventilating of intercommunication blow vent and annular chamber.
Preferably, the cylindrical rubber sleeve upper section is provided with an annular clamping shoulder.
Preferably, the inner core is provided with an annular plate near the upper part, and the annular plate is bonded to the cylindrical rubber sleeve.
Preferably, the top of the cylindrical rubber sleeve is provided with an annular groove matched with the annular plate in shape, and the upper surface of the annular plate is flush with the upper surface of the cylindrical rubber sleeve.
The utility model has the beneficial effects that:
the oil plugging device is simple in structure, the oil plugging hole in the front transmission housing is plugged by the inflatable and expandable cylindrical rubber sleeve, the labor intensity of workers can be reduced, the working efficiency is improved, the annular clamping shoulder can play a positioning role, the cylindrical rubber sleeve is prevented from excessively extending into the oil plugging hole in the front transmission housing, the annular plate can increase the bonding area between the inner core and the cylindrical rubber sleeve, and the connection stability between the inner core and the cylindrical rubber sleeve is improved.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a schematic view of the structure of the cylindrical rubber sleeve.
In the figure: 1. the inner core, 2 annular clamping shoulders, 3 annular cavities, 4 cylindrical rubber sleeves, 5 vent holes, 6 vent grooves and 7 annular plates.
Detailed Description
In order to make the technical solutions of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings and preferred embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
As shown in the figure, the oil-gas transmission device comprises a cylindrical rubber sleeve 4 and an inner core 1 bonded in the middle of the cylindrical rubber sleeve, wherein the diameter of the cylindrical rubber sleeve is matched with the inner diameter of an oil blocking hole of a front shell of the transmission, the inner core is hollow, a plurality of air vents 5 are arranged at the lower part of the inner core, the air vents are distributed at equal angles around the axis of the inner core, the top end of the inner core is used for being connected with an air pipe, the other end of the air pipe is connected with an air inlet device, the lower section of the inner core extends into the cylindrical rubber sleeve, an annular cavity 3 is arranged at the periphery of the air vents, when the annular cavity is inflated, the part of the cylindrical rubber sleeve at the periphery of the annular cavity expands outwards, when the air pressure in the annular cavity reaches a certain value, the oil blocking hole of the front shell of the transmission can be blocked by the cylindrical rubber sleeve, and an air vent 6 is arranged in the cylindrical rubber sleeve and used for communicating the air vents and the annular cavity.
The upper section of the cylindrical rubber sleeve is provided with an annular clamping shoulder 2 which can play a role in positioning and prevent the cylindrical rubber sleeve from excessively extending into an oil blocking hole of a front shell of the transmission.
The inner core is provided with an annular plate 7 close to the upper part, the annular plate is bonded to the cylindrical rubber sleeve, the bonding area of the inner core and the cylindrical rubber sleeve is increased, and the connection stability of the inner core and the cylindrical rubber sleeve is improved.
The top of the cylindrical rubber sleeve is provided with an annular groove matched with the annular plate in shape, and the upper surface of the annular plate is flush with the upper surface of the cylindrical rubber sleeve, so that the top surface of the cylindrical rubber sleeve is kept flat and reasonable in layout.
The working principle of the utility model is that the cylindrical rubber sleeve is inserted into the oil plugging hole of the front shell of the transmission, the outer side surface of the oil plugging hole is attached to the lower side surface of the annular clamping shoulder, the air inlet device fills air into the annular cavity through the air pipe and the inner core, the part of the cylindrical rubber sleeve on the periphery of the annular cavity expands outwards, and when the air pressure of the air in the annular cavity reaches a certain value, the cylindrical rubber sleeve can plug the oil plugging hole of the front shell of the transmission. The oil plugging device is simple in structure, the oil plugging hole in the front transmission housing is plugged by the inflatable and expandable cylindrical rubber sleeve, the labor intensity of workers can be reduced, the working efficiency is improved, the annular clamping shoulder can play a positioning role, the cylindrical rubber sleeve is prevented from excessively extending into the oil plugging hole in the front transmission housing, the annular plate can increase the bonding area between the inner core and the cylindrical rubber sleeve, and the connection stability between the inner core and the cylindrical rubber sleeve is improved.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (4)
1. The utility model provides a derailleur procapsid gas tightness detects uses stifled piece, a serial communication port, include the cylindricality gum cover and bond in the inner core at cylindricality gum cover middle part, cylindricality gum cover diameter and derailleur procapsid oil plug bore diameter looks adaptation, inner core cavity and inner core lean on the lower part position to be equipped with a plurality of blow vents, a plurality of blow vents distribute around angles such as inner core axis, the inner core hypomere stretches into in the cylindricality gum cover, the cylindricality gum cover is equipped with the annular chamber in the blow vent periphery, the cylindricality gum cover is equipped with the air channel of intercommunication blow vent and annular chamber.
2. The plug for detecting airtightness of a front casing of a transmission according to claim 1, wherein an annular shoulder is provided on an upper section of said cylindrical rubber sleeve.
3. The transmission front housing air tightness detecting plug according to claim 1, wherein an annular plate is provided at an upper portion of the inner core, and the annular plate is bonded to the cylindrical rubber sleeve.
4. The plug for detecting the airtightness of the front casing of the transmission according to claim 3, wherein an annular groove having a shape adapted to an annular plate is formed at the top of the cylindrical rubber sleeve, and the upper surface of the annular plate is flush with the upper surface of the cylindrical rubber sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120928529.5U CN215524926U (en) | 2021-04-30 | 2021-04-30 | Blocking piece for detecting air tightness of front shell of transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120928529.5U CN215524926U (en) | 2021-04-30 | 2021-04-30 | Blocking piece for detecting air tightness of front shell of transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215524926U true CN215524926U (en) | 2022-01-14 |
Family
ID=79803299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120928529.5U Active CN215524926U (en) | 2021-04-30 | 2021-04-30 | Blocking piece for detecting air tightness of front shell of transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215524926U (en) |
-
2021
- 2021-04-30 CN CN202120928529.5U patent/CN215524926U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 300000 north of Jinba highway, Beichen District, Tianjin Patentee after: Tianjin Fali Automobile Die Casting Co.,Ltd. Country or region after: China Address before: 300000 north of Jinba highway, Beichen District, Tianjin Patentee before: TIANJIN CITY FALI AUTOMOBILE DIE CASTING FACTORY Country or region before: China |