CN211474829U - Worm gear case ventilating plug mounting structure - Google Patents
Worm gear case ventilating plug mounting structure Download PDFInfo
- Publication number
- CN211474829U CN211474829U CN201922034978.0U CN201922034978U CN211474829U CN 211474829 U CN211474829 U CN 211474829U CN 201922034978 U CN201922034978 U CN 201922034978U CN 211474829 U CN211474829 U CN 211474829U
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- gear case
- worm
- hole
- ventilative stopper
- terminal surface
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Abstract
The utility model relates to a ventilative stopper mounting structure of worm-gear case, for solving current worm-gear case output shaft tip and the easy rainwater of getting into of worm-gear case casing cooperation clearance department and steam and influence the problem in worm-gear case life-span, the utility model discloses structure a ventilative stopper mounting structure of worm-gear case, including worm-gear case box, dish lid and ventilative stopper, dish lid back-off seal mounting covers the terminal surface hole on the box terminal surface, and dish lid top is provided with the welding of through-hole and through-hole department and has ventilative stopper seat, and ventilative stopper passes through screw-thread fit and installs in the screw hole of ventilative stopper seat. The utility model discloses in, both guaranteed that the interior high temperature high-pressure gas of worm-gear case casing communicates with each other through terminal surface hole and ventilative stopper and outside, made rainwater or water smoke difficult entering ventilative stopper passageway simultaneously and entered into in the worm-gear case casing and influence the performance and the life-span of worm-gear case, and the ventilative stopper that is heightened is farther apart from incasement fluid, makes the difficult ventilative stopper passageway that enters into of fluid, greatly reduced oil risk.
Description
Technical Field
The utility model relates to an installation of ventilative stopper, more specifically say, relate to a worm-gear case ventilative stopper mounting structure.
Background
In a worm gear box of engineering machinery, high-temperature and high-pressure gas is generated due to friction between a worm and a worm gear and between gears, and the high-temperature and high-temperature gas needs to be discharged out of the worm gear box so as to achieve the purpose of cooling and improve the working environment of parts such as gears in a box body.
In the worm gear box, the upper end of the output shaft is connected with an end surface hole on the worm gear box shell through a bearing, and a gap between the output shaft and the hole wall of the end surface hole is transformed into a channel for discharging high-pressure high-temperature gas in the worm gear box out of the worm gear box. However, the channel can also cause external rainwater or water vapor to enter the worm gear box, so that parts are corroded, oil is deteriorated, the cleanliness of the parts is influenced, and the service life of the parts is reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that current worm gear case output shaft tip gets into rainwater and steam easily with worm gear case casing fit clearance department and influences the problem of worm gear case life-span, and provides a worm gear case ventilative stopper mounting structure.
The utility model discloses a realize that the technical scheme of its purpose is like: the structure of the mounting structure of the vent plug of the worm gear case comprises a worm gear case body, wherein an end face hole matched with an output shaft of the worm gear case is formed in the end face of the case body, the mounting structure is characterized by further comprising a disc-shaped cover and the vent plug, the disc-shaped cover is arranged on the end face of the case body in a back-off sealing mode and covers the end face hole in the end face of the case body, a vent plug seat is welded to the top of the disc-shaped cover and provided with a through hole, the vent plug seat is provided with a threaded hole communicated with the through hole in the disc-shaped cover, and the vent plug is mounted in the threaded hole of the vent. The utility model discloses in, the terminal surface hole on the box terminal surface is sealed through the dish lid, only leave ventilative stopper and outside and communicate with each other, ventilative stopper mounted position is heightened through dish lid and ventilative stopper seat, it communicates with each other with the outside through terminal surface hole and ventilative stopper to have both guaranteed that high temperature high-pressure gas in the worm gear case casing communicates with each other like this, make rainwater or water smoke difficult for getting into ventilative stopper passageway simultaneously and enter into in the worm gear case casing and influence the performance and the life-span of worm gear case, and the ventilative stopper that is heightened is farther apart from incasement fluid, make fluid difficult for entering into ventilative stopper passageway, greatly reduced risk of bleeding.
In the ventilating plug mounting structure of the worm gear case, the ventilating plug and the ventilating plug seat are connected in a threaded fit mode through the sealing pipe, the ventilating plug and the ventilating plug seat can be sealed through smearing sealing glue or setting a sealing ring, and rainwater is prevented from entering the inner cavity of the disc-shaped cover from the threaded fit position and then entering the worm gear case.
In the mounting structure of the ventilating plug of the worm gear case, the edge of the dish-shaped cover is provided with a folded edge which is attached and sealed with the end face of the case body, and the folded edge is fixedly connected with the end face of the case body through a screw.
Compared with the prior art, the utility model discloses the ventilative stopper mounting structure of worm-gear case can let high-pressure high-temperature gas overflow the incasement outside the worm-gear case, can prevent again simultaneously that outside rainwater and steam from entering into the box through the terminal surface hole of box casing and influencing the performance and the life-span of worm-gear case.
Drawings
Fig. 1 is a schematic structural view of the mounting structure of the vent plug of the worm gear case of the present invention.
Fig. 2 is a schematic sectional view of the mounting structure of the vent plug of the worm gear case of the present invention.
Part names and serial numbers in the figure:
the gas-permeable plug comprises a box body 1, an output shaft 11, an end surface hole 12, a disc-shaped cover 2, a gas-permeable plug seat 3, a gas-permeable plug 4 and a screw 5.
Detailed Description
The following description of the embodiments refers to the accompanying drawings.
As shown in fig. 1, the mounting structure of the vent plug of the worm gear case in the embodiment includes a worm gear case body 1, a disk-shaped cover 2 and a vent plug 4, an end face hole 12 for matching with an output shaft 11 of the worm gear case is provided on an end face of the case body, the disk-shaped cover 2 is installed on the end face of the case body in a back-off sealing manner and covers the end face hole 12 on the end face of the case body, a through hole is provided on the top of the disk-shaped cover 2, a vent plug seat 3 is welded at the through hole, the vent plug seat 3 is provided with a threaded hole communicated with the through hole on the disk-shaped cover 2, and the vent plug 4 is installed. Connect through sealed tube screw-thread fit between ventilative stopper and the ventilative stopper seat, also can seal through scribbling sealed glue or setting up the sealing washer between ventilative stopper and the ventilative stopper seat during concrete implementation, avoid the rainwater to enter into the dish shape from screw-thread fit department and cover the inner chamber and then enter into the worm gear case. The edge of the disc-shaped cover 2 is provided with a hem which is attached and sealed with the end face of the box body, the hem is fixedly connected with the end face of the box body through a screw 5, and sealant or a sealing gasket is smeared between the hem of the edge of the disc-shaped cover and the end face of the box body for sealing.
In this embodiment, terminal surface hole 12 on the box terminal surface is sealed through dish lid 2, only leave ventilative stopper 4 and outside and communicate with each other, ventilative stopper 4 mounted position is heightened through dish lid 2 and ventilative stopper seat 3, it communicates with each other with the outside through terminal surface hole 12 and ventilative stopper 4 to have both guaranteed like this that high temperature high-pressure gas in the worm-gear case casing communicates with each other and carries out the pressure release, make rainwater or water smoke difficult for entering into ventilative stopper 4 passageway simultaneously and enter into the worm-gear case casing and influence the performance and the life-span of worm-gear case, and the ventilative stopper 4 that are heightened is farther apart from incasement fluid, make fluid difficult for entering into ventilative stopper passageway, greatly reduced risk of bleeding.
Claims (3)
1. The utility model provides a worm-gear case breather plug mounting structure, includes the worm-gear case box, be provided with at the box terminal surface be used for with worm-gear case output shaft complex terminal surface hole, its characterized in that still includes dish lid and breather plug, dish lid back-off seal installation be in on the box terminal surface and cover the terminal surface hole on the box terminal surface, the top of dish lid is provided with through-hole and through-hole department welding and has the breather plug seat, the breather plug seat be provided with dish cover the communicating screw hole of through-hole, the breather plug passes through screw-thread fit and installs in the screw hole of breather plug seat.
2. The worm-gear case vent plug mounting structure according to claim 1, wherein the vent plug and the vent plug seat are connected by a sealing pipe in a threaded fit manner.
3. The worm-gear case vent plug mounting structure according to claim 1 or 2, wherein the edge of the dish-shaped cover is provided with a folded edge which is in fit sealing with the end face of the case body, and the folded edge is fixedly connected with the end face of the case body through a screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922034978.0U CN211474829U (en) | 2019-11-22 | 2019-11-22 | Worm gear case ventilating plug mounting structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922034978.0U CN211474829U (en) | 2019-11-22 | 2019-11-22 | Worm gear case ventilating plug mounting structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211474829U true CN211474829U (en) | 2020-09-11 |
Family
ID=72359411
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922034978.0U Active CN211474829U (en) | 2019-11-22 | 2019-11-22 | Worm gear case ventilating plug mounting structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211474829U (en) |
-
2019
- 2019-11-22 CN CN201922034978.0U patent/CN211474829U/en active Active
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