CN215524927U - Novel blocking piece for detecting air tightness of front shell of transmission - Google Patents
Novel blocking piece for detecting air tightness of front shell of transmission Download PDFInfo
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- CN215524927U CN215524927U CN202120928535.0U CN202120928535U CN215524927U CN 215524927 U CN215524927 U CN 215524927U CN 202120928535 U CN202120928535 U CN 202120928535U CN 215524927 U CN215524927 U CN 215524927U
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- inner core
- air
- chuck
- rubber sleeve
- cylindrical rubber
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 41
- 230000000903 blocking effect Effects 0.000 title claims abstract description 17
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 22
- 108090000565 Capsid Proteins Proteins 0.000 description 4
- 238000005034 decoration Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012208 gear oil Substances 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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Abstract
The utility model relates to a novel blocking piece for detecting the air tightness of a front shell of a transmission, which comprises a cylindrical rubber sleeve and an inner core, wherein the inner core comprises a chuck, a bonding section and an air pipe connector, the bonding section and the air pipe connector are arranged above the chuck, a plurality of slideways are arranged on the periphery of the chuck, clamping blocks are connected in the slideways in a sliding mode, pistons are arranged at the innermost ends of the clamping blocks, a first air passage and a second air passage communicated with the bottom end of the first air passage and the inner end of the slideways are arranged in the inner core, a plurality of air vents are arranged at the lower position of the middle section of the inner core, an annular cavity is arranged at the periphery of the air vents of the cylindrical rubber sleeve, and a vent groove is formed in the cylindrical rubber sleeve. The oil plugging device is simple in structure, the oil plugging hole in the front transmission shell is plugged by the inflatable and expandable cylindrical rubber sleeve, the labor intensity of workers can be reduced, the working efficiency is improved, when the clamping block extends out of the slide way, the phenomenon that the chuck accidentally bounces off the oil plugging hole in the front transmission shell due to overhigh internal air pressure of the front transmission shell can be prevented, and the safety of the workers is guaranteed.
Description
Technical Field
The utility model relates to the technical field of air tightness detection, in particular to a novel 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 novel blocking piece for detecting the air tightness of a front shell of a transmission.
The utility model is realized by the following technical scheme:
a novel blocking piece for detecting the air tightness of a front transmission shell comprises a cylindrical rubber sleeve and an inner core which is connected to the middle of the cylindrical rubber sleeve in a penetrating mode, wherein the diameter of the cylindrical rubber sleeve is matched with the diameter of an oil blocking hole of the front transmission shell, the inner core comprises a chuck at the bottom, a bonding section arranged above the chuck and an air pipe interface arranged at the top end of the bonding section, the diameter of the chuck is the same as that of the cylindrical rubber sleeve, the bonding section of the inner core and the top surface of the chuck are bonded with the cylindrical rubber sleeve, a plurality of slideways are arranged at equal angles of the axis of the inner core in the clamping mode, clamping blocks are connected in the slideways in a sliding mode, pistons are arranged at the innermost ends of the clamping blocks, a first air passage is arranged in the inner core in the axis direction of the inner core, a second air passage which is communicated with the bottom end of the first air passage and the inner end of the slideway is arranged in the middle section of the inner core, a plurality of air ports are arranged at equal angles of the axis of the inner core, the cylindricality gum cover is equipped with the annular chamber in the blow vent periphery, the cylindricality gum cover is equipped with the air vent of intercommunication blow vent and annular chamber and leads to the air channel.
Preferably, the cylindrical rubber sleeve upper section is provided with an annular clamping shoulder.
Preferably, the distance between the bottom surface of the annular clamping shoulder and the top surface of the clamping disc is matched with the length of an oil blocking hole in a front shell of the transmission.
Preferably, the clamping block is connected with a spring which presses the clamping block into the slideway.
The utility model has the beneficial effects that:
the oil plugging device is simple in structure, the oil plugging hole in the front transmission shell 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 shell, when the air pressure in the first air passage and the second air passage is higher, the clamping block extends out of the slide way, the phenomenon that the clamping disc accidentally bounces off the oil plugging hole in the front transmission shell due to the fact that the air pressure in the front transmission shell is excessively high can be prevented, the safety of the workers is guaranteed, when the air pressure in the first air passage and the second air passage is lower, the clamping block is pressed into the slide way by the spring, and the workers can smoothly pull out the plugging piece.
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 air pipe comprises an air pipe connector, 2 annular clamping shoulders, 3 annular cavities, 4 cylindrical rubber sleeves, 5 clamping blocks, 6 springs, 7 pistons, 8 second air passages, 9 clamping discs, 10 air ports, 11 vent grooves, 12 bonding sections and 13 first air passages.
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 utility model comprises a cylindrical rubber sleeve 4 and an inner core which is connected in a penetrating way in the middle of the cylindrical rubber sleeve, the diameter of the cylindrical rubber sleeve is matched with that of an oil blocking hole of a front shell of a transmission, the inner core comprises a chuck 9 at the bottom, a bonding section 12 arranged above the chuck and an air pipe interface 1 arranged at the top end of the bonding section, the air pipe interface is used for connecting an air pipe, the other end of the air pipe is connected with an air inlet device, the diameter of the chuck is the same as that of the cylindrical rubber sleeve, the bonding section of the inner core and the top surface of the chuck are bonded with the cylindrical rubber sleeve, a plurality of slide ways are arranged at equal angles around the axis of the inner core by the chuck, a clamping block 5 is connected in the slide ways in a sliding way, when the front shell of the transmission is subjected to air tightness detection, the chuck extends into the front shell of the transmission, and when the clamping block extends out of the slide ways, the clamping block can be prevented from accidentally bouncing off the oil blocking hole of the front shell of the transmission due to the overhigh air pressure in the front shell of the transmission, the safety of staff has been ensured, the fixture block is equipped with all and has been equipped with piston 7 innermost, the inner core is equipped with first air flue 13 at its axis direction, be equipped with the second air flue 8 of first air flue bottom of intercommunication and slide inner in the chuck, can promote the piston outwards to move when certain numerical value rises in the second air flue internal gas pressure, the inner core middle section is equipped with a plurality of blow vents 10 by the lower position, a plurality of blow vents are around angular distribution such as inner core axis, the cylindricality gum cover is equipped with annular chamber 3 in the blow vent periphery, when aerifing in the annular chamber, the outside inflation of the part of cylindricality gum cover in the annular chamber periphery, when gaseous atmospheric pressure reaches certain numerical value in the annular chamber, the cylindricality gum cover can shutoff derailleur procapsid oil blocking hole, be equipped with air channel 11 in the cylindricality gum cover for intercommunication blow vent and annular chamber.
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 distance between annular card shoulder bottom surface and the chuck top surface is adapted in the length in derailleur procapsid oil plug hole, when annular card shoulder bottom surface laminating derailleur procapsid oil plug hole lateral surface, guarantees that the chuck stretches into in the derailleur procapsid.
The clamping block is connected with a spring 6 which presses the clamping block into the slideway, and when the air pressure in the second air channel is lower than a certain threshold value, the clamping block is pressed into the slideway under the action of the elastic force of the spring.
The working principle of the utility model is that a cylindrical rubber sleeve is inserted into an oil plugging hole in a front shell of the transmission, the outer side surface of the oil plugging hole is attached to the lower side surface of an annular clamping shoulder, an air inlet device fills air into the inner side of an annular cavity piston through an air pipe and an inner core, the part of the cylindrical rubber sleeve on the periphery of the annular cavity expands outwards, 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 in the front shell of the transmission, the piston moves outwards, and a clamping block extends out of a sliding channel and is clamped to the inner side surface of the oil plugging hole. The oil plugging device is simple in structure, the oil plugging hole in the front transmission shell 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 shell, when the air pressure in the first air passage and the second air passage is higher, the clamping block extends out of the slide way, the phenomenon that the clamping disc accidentally bounces off the oil plugging hole in the front transmission shell due to the fact that the air pressure in the front transmission shell is excessively high can be prevented, the safety of the workers is guaranteed, when the air pressure in the first air passage and the second air passage is lower, the clamping block is pressed into the slide way by the spring, and the workers can smoothly pull out the plugging piece.
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. A novel blocking piece for detecting the air tightness of a front transmission shell is characterized by comprising a cylindrical rubber sleeve and an inner core which is connected to the middle of the cylindrical rubber sleeve in a penetrating mode, wherein the diameter of the cylindrical rubber sleeve is matched with the diameter of an oil blocking hole of the front transmission shell, the inner core comprises a chuck at the bottom, a bonding section arranged above the chuck and an air pipe connector arranged at the top end of the bonding section, the diameter of the chuck is the same as that of the cylindrical rubber sleeve, the bonding section of the inner core and the top surface of the chuck are both bonded with the cylindrical rubber sleeve, a plurality of slideways are arranged on the chuck at equal angles around the axis of the inner core, clamping blocks are connected in the slideways in a sliding mode, pistons are arranged at the innermost ends of the clamping blocks, the inner core is provided with a first air passage in the axis direction of the inner core, a second air passage which is communicated with the bottom end of the first air passage and the inner end of the slideway is arranged in the chuck, a plurality of air vents are arranged at equal angles around the axis of the inner core at the middle section of the inner core, the cylindricality gum cover is equipped with the annular chamber in the blow vent periphery, the cylindricality gum cover is equipped with the air vent of intercommunication blow vent and annular chamber and leads to the air channel.
2. The novel plug for detecting the airtightness of the front casing of the transmission according to claim 1, wherein an annular shoulder is provided on an upper section of the cylindrical rubber sleeve.
3. The novel plug for detecting the airtightness of the front transmission housing according to claim 2, wherein the distance between the bottom surface of the annular snap shoulder and the top surface of the chuck is adapted to the length of the oil blocking hole of the front transmission housing.
4. The novel plug for detecting the airtightness of the front casing of the transmission according to claim 1, wherein the latch is connected with a spring for pressing the latch into the slide.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120928535.0U CN215524927U (en) | 2021-04-30 | 2021-04-30 | Novel blocking piece for detecting air tightness of front shell of transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120928535.0U CN215524927U (en) | 2021-04-30 | 2021-04-30 | Novel blocking piece for detecting air tightness of front shell of transmission |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215524927U true CN215524927U (en) | 2022-01-14 |
Family
ID=79803349
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120928535.0U Active CN215524927U (en) | 2021-04-30 | 2021-04-30 | Novel blocking piece for detecting air tightness of front shell of transmission |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215524927U (en) |
-
2021
- 2021-04-30 CN CN202120928535.0U patent/CN215524927U/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 |