CN202946672U - Composite structure dust-proof mat - Google Patents
Composite structure dust-proof mat Download PDFInfo
- Publication number
- CN202946672U CN202946672U CN 201220638825 CN201220638825U CN202946672U CN 202946672 U CN202946672 U CN 202946672U CN 201220638825 CN201220638825 CN 201220638825 CN 201220638825 U CN201220638825 U CN 201220638825U CN 202946672 U CN202946672 U CN 202946672U
- Authority
- CN
- China
- Prior art keywords
- ring
- composite structure
- shaped seal
- annular seal
- seal rib
- 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 - Fee Related
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- Sealing Devices (AREA)
Abstract
The utility model discloses a composite structure dust-proof mat. The composite structure dust-proof mat comprises a body and a friction resisting seal ring, wherein the body is in a circular ring shape, the center of the upper surface of the body is provided with a ring-shaped boss, and the friction resisting seal ring is installed on the ring-shaped boss. Besides, the outer surface of the friction resisting seal ring is provided with a first ring-shaped seal rib and a second ring-shaped seal rib, wherein the first ring-shaped seal rib and the second ring-shaped seal rib are the same in height, the upper surface of the first ring-shaped seal rib is an arc face, the outer side of the upper surface of the second ring-shaped seal rib is an arc face, and the inner side of the upper surface of the second ring-shaped seal rib is a right-angle face. The first ring-shaped seal rib and the second ring-shaped seal rib are the same in width, and the width is greater than the height. The composite structure dust-proof mat is designed, by means of arrangement of the friction resisting seal ring, the first ring-shaped seal rib and the second ring-shaped seal rib can play a role in dual-seal, and the fact that dust and particulate matters can be prevented from entering one side of a main shaft is guaranteed.
Description
Technical field
The utility model relates to a kind of composite structure dust-proof cushion, is applied on the main shaft of tunnel excavator.
Background technique
The working environment of tunnel excavator is complicated, so often can enter dust or particle in the main shaft of tunnel excavator, easily causes spindle abrasion serious.Dust-proof cushion commonly used is a simple pad, adopts the flexible material manufacturing, and because working environment is complicated, after using a period of time, flexible material can dust stratification, aging, distortion etc., causes and can't play dustproof effect.
The model utility content
In order to prevent that dust and particle from entering in the main shaft of tunnel excavator, the utility model provides a kind of composite structure dust-proof cushion.
The purpose of this utility model is come specific implementation by the following technical programs:
The composite structure dust-proof cushion, comprise body and rub resistance seal ring, described body is ring, the upper surface center of body is provided with annular boss, described wear-resisting wiping seal ring is arranged on described annular boss, the outer surface of described wear-resisting wiping seal ring is provided with the first annular seal fin and the second annular seal fin, the first annular seal fin and the second annular seal fin have identical height, wherein the upper surface of the first annular seal fin is arc surface, be arc surface outside the upper surface of the second annular seal fin, the inboard is the right angle face.
Described the first annular seal fin and the second annular seal fin have identical width, and width is greater than height.
The thickness of described rub resistance seal ring equals the height of annular boss.
Through the composite structure dust-proof cushion of above-mentioned design, by the setting of rub resistance seal ring, the first annular seal fin and the second annular seal fin can play the effect of double seal, guarantee that dust and particulate matter can not enter into main shaft one side.
Description of drawings
The below is described in further detail the utility model according to drawings and embodiments.
Fig. 1 is the structural drawing of the described composite structure dust-proof cushion of the utility model embodiment.
Embodiment
as shown in Figure 1, the described composite structure dust-proof cushion of the utility model embodiment, comprise body and rub resistance seal ring 2, described body 1 is ring, the upper surface center of body 1 is provided with annular boss 11, described wear-resisting wiping seal ring 2 is arranged on described annular boss 11, the outer surface of described wear-resisting wiping seal ring 2 is provided with the first annular seal fin 21 and the second annular seal fin 22, the first annular seal fin 21 and the second annular seal fin 22 have identical height, wherein the upper surface of the first annular seal fin 21 is arc surface, be arc surface outside the upper surface of the second annular seal fin 22, the inboard is the right angle face.
Described the first annular seal fin 21 and the second annular seal fin 22 have identical width, and width is greater than height.
The thickness of described rub resistance seal ring 2 equals the height of annular boss 11.
Through the composite structure dust-proof cushion of above-mentioned design, by the setting of rub resistance seal ring, the first annular seal fin and the second annular seal fin can play the effect of double seal, guarantee that dust and particulate matter can not enter into main shaft one side.
Claims (3)
1. composite structure dust-proof cushion, comprise body and rub resistance seal ring, described body is ring, it is characterized in that, the upper surface center of body is provided with annular boss, described wear-resisting wiping seal ring is arranged on described annular boss, the outer surface of described wear-resisting wiping seal ring is provided with the first annular seal fin and the second annular seal fin, the first annular seal fin and the second annular seal fin have identical height, wherein the upper surface of the first annular seal fin is arc surface, be arc surface outside the upper surface of the second annular seal fin, the inboard is the right angle face.
2. composite structure dust-proof cushion as claimed in claim 1, is characterized in that, described the first annular seal fin and the second annular seal fin have identical width, and width is greater than height.
3. composite structure dust-proof cushion as claimed in claim 1, is characterized in that, the thickness of described rub resistance seal ring equals the height of annular boss.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638825 CN202946672U (en) | 2012-11-28 | 2012-11-28 | Composite structure dust-proof mat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638825 CN202946672U (en) | 2012-11-28 | 2012-11-28 | Composite structure dust-proof mat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202946672U true CN202946672U (en) | 2013-05-22 |
Family
ID=48422374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220638825 Expired - Fee Related CN202946672U (en) | 2012-11-28 | 2012-11-28 | Composite structure dust-proof mat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202946672U (en) |
-
2012
- 2012-11-28 CN CN 201220638825 patent/CN202946672U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130522 Termination date: 20131128 |