CN201300860Y - Sealing mechanism for axle gear case of tunnel tractor - Google Patents
Sealing mechanism for axle gear case of tunnel tractor Download PDFInfo
- Publication number
- CN201300860Y CN201300860Y CNU2008201063741U CN200820106374U CN201300860Y CN 201300860 Y CN201300860 Y CN 201300860Y CN U2008201063741 U CNU2008201063741 U CN U2008201063741U CN 200820106374 U CN200820106374 U CN 200820106374U CN 201300860 Y CN201300860 Y CN 201300860Y
- Authority
- CN
- China
- Prior art keywords
- axle gear
- gear case
- sealing
- sealing mechanism
- packing
- 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.)
- Expired - Lifetime
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Abstract
The utility model relates to axle gear case sealing field and in particular relates to a sealing mechanism for an axle gear case of a tunnel tractor, which solves the problem of poor sealing effect of the existing sealing means for the axle gear case of the tunnel tractor under harsh work environment. The sealing mechanism for the axle gear case of the tunnel tractor comprises bearings of the axle gear case, a labyrinth sealing piece arranged between the bearing caps, and packing sealing pieces arranged on the matching surface of the bearing caps and the axle. The external end faces of the packing sealing pieces are fixed by shaft-end gland bushes. The sealing mechanism has the advantage that by adopting the combination of the labyrinth sealing piece and the packing sealing pieces, the sealing mechanism realizes that the axle gear case is still in good operation condition even if the tunnel tractor works in a harsh environment, and prevents gases, water and dust from entering the axle gear case to contaminate the lubricating oil in the axle gear case and to accelerate the abrasion of the component parts, thus reducing the labor cost and material consumption when replacing the lubricating oil frequently.
Description
Technical field
The utility model relates to the axle gear box sealing, is specifically related to a kind of tunnel tractor truck axle gear box sealing mechanism.
Background technology
The sealing of domestic existing tunnel tractor truck axle gear box belongs to the rotary seal class in the dynamic seal, the general employing:
1, the labyrinth packing among the traditional non-contact type dynamic seal;
2, the packing ring class of gasket seal among the contact-type dynamic seal or compression molding sealing.
Because the working environment of tunnel tractor truck is relatively more abominable usually; the outside of its axle gear box partly is immersed in underwater work through regular meeting; and the sealing means of domestic existing tunnel tractor truck axle gear box; can not stop gas in the environment, water, dust etc. to invade in the gear case body; pollute the working medium (lubricated wet goods) in the casing; cause phenomenon such as working medium emulsification frequently to occur, aggravated the wearing and tearing of parts in the casing.
Summary of the invention
The utility model provides a kind of tunnel tractor truck axle gear box sealing mechanism that adapts to abominable working environment in order to solve the bad problem of sealing means sealing effectiveness in bad working environment of existing tunnel tractor truck axle gear box.
The utility model adopts following technical scheme to realize:
A kind of tunnel tractor truck axle gear box sealing mechanism, it is characterized in that the packing_seal spare that is provided with on the fitting surface of described sealing mechanism by the labyrinth seal that is provided with between the bearing of axle gear box and the bearing cap shim and bearing cap shim and axletree constitutes, the outer face of packing_seal spare is fixed by the axle head gland.
The utlity model has following beneficial effect: adopt the labyrinth packing of non-contact type dynamic seal and the packing_seal of contact-type dynamic seal to combine, even realizing the tunnel tractor truck is relatively working in the rugged environment, it is good that the running state of its axle gear box still keeps, avoided gas, water, dust etc. to invade in the gear case body, cause the appearance of phenomenons such as wearing and tearing aggravation of pollution, the parts of lubricating oil in the casing, thereby reduced the cost of labor and the Master Cost of frequent change oil.
Description of drawings
Fig. 1 is a structural representation of the present utility model
Among the figure: 1-axletree, 2-axle head gland, 3-bearing cap shim, 4-casing, 5-bearing, 6-labyrinth seal, 7-packing_seal spare
The specific embodiment
In conjunction with the accompanying drawings structural representation of the present utility model is described further.
Tunnel tractor truck axle gear box sealing mechanism, it is characterized in that the packing_seal spare 7 that is provided with on the fitting surface of described sealing mechanism by the labyrinth seal 6 that is provided with between the bearing 5 of axle gear box and the bearing cap shim 3 and bearing cap shim 3 and axletree 1 constitutes, the outer face of packing_seal spare 7 is fixing by axle head gland 2.The packing_seal of the labyrinth packing of non-contact type dynamic seal and contact-type dynamic seal combines, and is relatively working in the rugged environment even realize the tunnel tractor truck, also can avoid phenomenons such as lubricant pollution, parts wear aggravation in the casing.
Claims (1)
1, a kind of tunnel tractor truck axle gear box sealing mechanism, it is characterized in that the packing_seal spare (7) that is provided with on the fitting surface of described sealing mechanism by the labyrinth seal (6) that is provided with between the bearing (5) of axle gear box and the bearing cap shim (3) and bearing cap shim (3) and axletree (1) constitutes, the outer face of packing_seal spare (7) is fixing by axle head gland (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201063741U CN201300860Y (en) | 2008-10-25 | 2008-10-25 | Sealing mechanism for axle gear case of tunnel tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201063741U CN201300860Y (en) | 2008-10-25 | 2008-10-25 | Sealing mechanism for axle gear case of tunnel tractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201300860Y true CN201300860Y (en) | 2009-09-02 |
Family
ID=41084480
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201063741U Expired - Lifetime CN201300860Y (en) | 2008-10-25 | 2008-10-25 | Sealing mechanism for axle gear case of tunnel tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201300860Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009663A (en) * | 2010-12-20 | 2011-04-13 | 南车戚墅堰机车车辆工艺研究所有限公司 | Gear case sealing structure of urban rail vehicle |
-
2008
- 2008-10-25 CN CNU2008201063741U patent/CN201300860Y/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102009663A (en) * | 2010-12-20 | 2011-04-13 | 南车戚墅堰机车车辆工艺研究所有限公司 | Gear case sealing structure of urban rail vehicle |
| CN102009663B (en) * | 2010-12-20 | 2012-07-18 | 南车戚墅堰机车车辆工艺研究所有限公司 | Gear case sealing structure of urban rail vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 030024 No. 129 Xinghua West Street, Wan Berlin District, Shanxi, Taiyuan Patentee after: CRRC TAIYUAN CO., LTD. Address before: 030009 No. 10 Jiefang North Road, Shanxi, Taiyuan Patentee before: Taiyuan Rail Traffic Equipment Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20090902 |
|
| CX01 | Expiry of patent term |