CN204239547U - Oil-draining screw - Google Patents
Oil-draining screw Download PDFInfo
- Publication number
- CN204239547U CN204239547U CN201420732704.3U CN201420732704U CN204239547U CN 204239547 U CN204239547 U CN 204239547U CN 201420732704 U CN201420732704 U CN 201420732704U CN 204239547 U CN204239547 U CN 204239547U
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- China
- Prior art keywords
- oil
- grease chamber
- hypomere
- housing
- stage casing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
A kind of oil-draining screw, comprise the body of rod (2) matched with drain oil (1.1) shape be arranged on grease chamber's housing (1), size, the described body of rod (2) comprises epimere (2.1) that diameter increases gradually, stage casing (2.2) and hypomere (2.3) from top to bottom, the end of described hypomere (2.3) is also provided with shoulder pad (2.4), described epimere (2.1), stage casing (2.2) and hypomere (2.3) respectively with the upper hole of the drain oil (1.1) on grease chamber's housing (1), mesopore and lower opening close-fitting.This oil-draining screw can be loaded in drain oil, and can realize carrying out cutting to the oil in grease chamber, main oil gallery and oil leab blocking up.
Description
Technical field
The utility model relates to hydraulic buffer technical field, is specifically a kind of oil-draining screw.
Background technique
For the downhill retardation of heavy truck, slow down usually through automobile braking safety auxiliary device, the core component of this device is hydraulic buffer, the vehicle spindle speed of a motor vehicle can be made to reduce, thus reach the object of downhill retardation by this hydraulic buffer.
At present, this hydraulic buffer mainly comprises grease chamber's housing, the heat exchanger being loaded on grease chamber's housing both ends of the surface respectively and active chamber housing.Wherein grease chamber's housing cavity is provided with grease chamber, and active chamber housing, built with rotor and stator, is also provided with main oil gallery and oil leab in active chamber housing.After active chamber housing and grease chamber's shell end are equipped with, the oil in grease chamber, under pressurized gas effect, flow into main oil gallery and the oil leab of active chamber housing respectively in grease chamber's housing.Although grease chamber's housing of above structure and active chamber housing can realize oil and flow into main oil gallery and oil leab respectively from grease chamber, but the oil in grease chamber, main oil gallery and oil leab can not be released in time, and the demand of draining the oil to grease chamber, main oil gallery and oil leab can not be met.
For this reason, inventor is setting about researching and developing a kind of oil drainage structure, this oil drainage structure is arranged on grease chamber's housing bottom, realize draining the oil with the drain oil that grease chamber, main oil gallery and oil leab are all communicated with by arranging one, and after this drain oil arranges, how to cut stifled parts by one, when not needing to drain the oil, can be loaded in this drain oil, and grease chamber, main oil gallery and oil leab be blocked, the concrete structure of this section of stifled parts seems particularly important thus.
Model utility content
The technical problems to be solved in the utility model is, provides one to be loaded in drain oil, and can realize carrying out cutting stifled oil-draining screw to the oil in grease chamber, main oil gallery and oil leab.
For solving the problems of the technologies described above, the technological scheme that the utility model provides is: comprise the body of rod matched with the drain oil shape be arranged on grease chamber's housing, size, the described body of rod comprises epimere that diameter increases gradually, stage casing and hypomere from top to bottom, the end of described hypomere is also provided with shoulder pad, described epimere, stage casing and hypomere respectively with the upper hole of the drain oil on grease chamber's housing, mesopore and lower opening close-fitting.
Described epimere be provided with for clamp seal ring and cross section is square upper groove, described stage casing is also provided with for clamp seal ring and cross section is square middle slot, be provided with between described shoulder pad and hypomere for clamp sealing gasket and cross section is the draw-in groove of taper.
The body of rod of oil-draining screw of the present utility model because being matched with the drain oil shape on grease chamber's housing, size by setting, and the body of rod comprises epimere that diameter increases gradually, stage casing and hypomere from top to bottom, also the upper lower opening increased successively by diameter from top to bottom because of drain oil is formed, therefore like this body of rod of special construction to be plugged in after in drain oil just can with drain oil close-fitting, thus grease chamber, main oil gallery and oil leab can be blocked, and when needs are drained the oil, oil-draining screw is taken out and just can realize draining the oil.
Further, described epimere be provided with for clamp seal ring and cross section is square upper groove, described stage casing is also provided with for clamp seal ring and cross section is square middle slot, be provided with between described shoulder pad and hypomere for clamp sealing gasket and cross section is the draw-in groove of taper, upper groove, the setting of middle slot and draw-in groove, can be used for clamping seal ring and sealing gasket, so just, anti-leak result can be increased, when oil-draining screw is plugged in after in drain oil, more not easily there is oily leakage phenomenon, the cross section of simultaneously going up groove and middle slot is squarely be beneficial to clamping of seal ring, and clamp solid and reliable, and the draw-in groove that cross section is taper is beneficial to clamping of sealing gasket equally, also make to clamp solid and reliable.
Accompanying drawing explanation
The drain oil of Tu1Shi grease chamber housing is built with the broken section structural representation of oil-draining screw.
Fig. 2 is the main TV structure schematic diagram of the utility model oil-draining screw.
Shown in the utility model figure: 1 grease chamber's housing, 1.1 drain oils, 2 bodies of rod, 2.1 epimeres, groove on 2.11,2.2 stage casings, 2.21, middle slot, 2.3 hypomeres, 2.4 shoulder pads, 2.41 draw-in grooves.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in the figure, oil-draining screw of the present utility model, comprises the body of rod 2 matched with drain oil 1.1 shape be arranged on grease chamber's housing 1, size, and the described body of rod 2 comprises epimere 2.1 that diameter increases gradually, stage casing 2.2 and hypomere 2.3 from top to bottom.Wherein drain oil 1.1 is arranged on the bottom of grease chamber's housing, and upper hole, mesopore and lower opening that drain oil is increased successively by diameter are from top to bottom formed, wherein go up the oil leab of hole and active chamber housing by middle transition channel connection, and mesopore is also communicated with by middle transition oil duct with the main oil gallery of active chamber housing, lower opening is then communicated with the grease chamber of grease chamber's housing by the radial direction through hole arranged on drain oil sidewall.
And the end of described hypomere 2.3 is also provided with shoulder pad 2.4, described epimere 2.1, stage casing 2.2 and hypomere 2.3 respectively with the upper hole of the drain oil 1.1 on grease chamber's housing 1, mesopore and lower opening close-fitting.Wherein shoulder pad can make oil-draining screw be pressed on the end face of the bottom of grease chamber's housing, is convenient to oil-draining screw and is tightened on grease chamber's housing.
Be plugged in after in drain oil for preventing oil-draining screw and occur oil leakage phenomenon, increase sealing effect, described epimere 2.1 is provided with for clamping seal ring and cross section is square upper groove 2.11, described stage casing 2.2 is also provided with for clamp seal ring and cross section is square middle slot 2.21, be provided with between described shoulder pad 2.4 and hypomere 2.3 for clamp sealing gasket and cross section is the draw-in groove 2.41 of taper.Like this, when oil-draining screw is plugged in after in drain oil, the seal ring on oil-draining screw and sealing gasket and drain oil inwall just can effectively prevent the oil leakage in grease chamber, main oil gallery and oil leab from going out after being close to.
Claims (2)
1. an oil-draining screw, it is characterized in that: comprise and drain oil (1.1) shape be arranged on grease chamber's housing (1), the body of rod (2) that size matches, the described body of rod (2) comprises the epimere (2.1) that diameter increases gradually from top to bottom, stage casing (2.2) and hypomere (2.3), the end of described hypomere (2.3) is also provided with shoulder pad (2.4), described epimere (2.1), stage casing (2.2) and hypomere (2.3) respectively with the upper hole of the drain oil (1.1) on grease chamber's housing (1), mesopore and lower opening close-fitting.
2. oil-draining screw according to claim 1, it is characterized in that: described epimere (2.1) is provided with for clamping seal ring and cross section is square upper groove (2.11), described stage casing (2.2) is also provided with for clamp seal ring and cross section is square middle slot (2.21), be provided with between described shoulder pad (2.4) and hypomere (2.3) for clamp sealing gasket and cross section is the draw-in groove (2.41) of taper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420732704.3U CN204239547U (en) | 2014-11-28 | 2014-11-28 | Oil-draining screw |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420732704.3U CN204239547U (en) | 2014-11-28 | 2014-11-28 | Oil-draining screw |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204239547U true CN204239547U (en) | 2015-04-01 |
Family
ID=52769047
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420732704.3U Active CN204239547U (en) | 2014-11-28 | 2014-11-28 | Oil-draining screw |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204239547U (en) |
-
2014
- 2014-11-28 CN CN201420732704.3U patent/CN204239547U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |