CN202914741U - Cone hole compression structure dust-prevention cushion - Google Patents
Cone hole compression structure dust-prevention cushion Download PDFInfo
- Publication number
- CN202914741U CN202914741U CN 201220638947 CN201220638947U CN202914741U CN 202914741 U CN202914741 U CN 202914741U CN 201220638947 CN201220638947 CN 201220638947 CN 201220638947 U CN201220638947 U CN 201220638947U CN 202914741 U CN202914741 U CN 202914741U
- Authority
- CN
- China
- Prior art keywords
- dust
- cushion body
- prevention
- proof cushion
- taper hole
- 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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Abstract
The utility model discloses a cone hole compression structure dust-prevention cushion which comprises a dust-prevention cushion body and a tensioning cushion body, wherein the dust-prevention cushion body is of an annular structure, the center of the dust-prevention cushion body is provided with a cone hole, the center of the tensioning cushion body is provided with a cone platform, the tensioning cushion body is arranged inside the cone hole of the dust-prevention cushion body, the edge of the tensioning cushion body is provided with an annular sea protruded edge, and the annular sea protruded edge contacts the lower surface of the dust-prevention cushion body in a sealed mode. The section of each dust-prevention ring is of a rectangular structure, and the distance between the two dust-prevention rings is larger than the width of any one dust-prevention ring. According to the design, the dust-prevention cushion body is of the cone hole compression structure, a shaft hole of the cone platform can be compressed through the method that the cone hole is connected with the cone platform, and the purpose that the shaft hole can contact a main shaft in a sealed mode is achieved. In addition, the annular seal protruded edge contacts the lower surface of the dust-prevention cushion body, the fact that an air seal space is formed between he annular seal protruded edge and the cone platform is achieved, and the function that the dust-prevention cushion body is supported stably is achieved.
Description
Technical field
The utility model relates to a kind of taper hole compression 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, causes easily spindle abrasion serious.Dust-proof cushion commonly used is a simple pad, adopts the flexible material manufacturing, 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 taper hole compression structure dust-proof cushion.
The purpose of this utility model is come specific implementation by the following technical programs:
Taper hole compression structure dust-proof cushion, comprise dust-proof cushion and swelling pad, described dust-proof cushion is structure ringwise, center at dust-proof cushion is provided with taper hole, the center of described swelling pad is provided with frustum, the swelling pad is installed in by frustum in the taper hole of described dust-proof cushion, and the edge of described swelling pad is provided with the annular seal fin, and described annular seal fin contacts sealing with the lower surface of dust-proof cushion.
Upper surface at described dust-proof cushion is provided with the twice dust ring, and described dust ring arranges with described taper hole is concentric.
The height of described frustum is more than or equal to the degree of depth of taper hole.
The cross section of described dust ring is rectangular configuration, and the distance between the twice dust ring is greater than the width of any dust ring wherein.
Taper hole compression structure dust-proof cushion through above-mentioned design, the mode that is connected with frustum by taper hole can be dwindled the axis hole of frustum, thereby reach the purpose that contacts and seal with main shaft, and the annular seal fin contacts with the lower surface of dust-proof cushion, can realize forming airtight space between annular seal fin and the frustum, have the function of stable support dust-proof cushion.
Description of drawings
The below is described in further detail the utility model with embodiment with reference to the accompanying drawings.
Fig. 1 is the structural drawing of the described taper hole compression structure of the utility model embodiment dust-proof cushion.
Embodiment
As shown in Figure 1, the described taper hole compression structure of the utility model embodiment dust-proof cushion, comprise dust-proof cushion 1 and swelling pad 2, described dust-proof cushion 1 is structure ringwise, be provided with taper hole 11 at the center of dust-proof cushion 1, the center of described swelling pad 2 is provided with frustum 22, and swelling pad 2 is installed in the taper hole 11 of described dust-proof cushion 1 by frustum 22, the edge of described swelling pad 2 is provided with annular seal fin 21, and described annular seal fin 21 contacts sealing with the lower surface of dust-proof cushion 1.
Upper surface at described dust-proof cushion 1 is provided with twice dust ring 12, described dust ring 12 and described taper hole 11 concentric settings.
The height of described frustum 22 is more than or equal to the degree of depth of taper hole 11.
The cross section of described dust ring 12 is rectangular configuration, and the distance between the twice dust ring 12 is greater than the width of any dust ring 12 wherein.
Taper hole compression structure dust-proof cushion through above-mentioned design, the mode that is connected with frustum by taper hole can be dwindled the axis hole of frustum, thereby reach the purpose that contacts and seal with main shaft, and the annular seal fin contacts with the lower surface of dust-proof cushion, can realize forming airtight space between annular seal fin and the frustum, have the function of stable support dust-proof cushion.
Claims (4)
1. taper hole compression structure dust-proof cushion, comprise dust-proof cushion and swelling pad, it is characterized in that, described dust-proof cushion is structure ringwise, center at dust-proof cushion is provided with taper hole, and the center of described swelling pad is provided with frustum, and the swelling pad is installed in the taper hole of described dust-proof cushion by frustum, the edge of described swelling pad is provided with the annular seal fin, and described annular seal fin contacts sealing with the lower surface of dust-proof cushion.
2. taper hole compression structure dust-proof cushion as claimed in claim 1 is characterized in that, is provided with the twice dust ring at the upper surface of described dust-proof cushion, and described dust ring arranges with described taper hole is concentric.
3. taper hole compression structure dust-proof cushion as claimed in claim 1 is characterized in that the height of described frustum is more than or equal to the degree of depth of taper hole.
4. taper hole compression structure dust-proof cushion as claimed in claim 2 is characterized in that, the cross section of described dust ring is rectangular configuration, and the distance between the twice dust ring is greater than the width of any dust ring wherein.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638947 CN202914741U (en) | 2012-11-28 | 2012-11-28 | Cone hole compression structure dust-prevention cushion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220638947 CN202914741U (en) | 2012-11-28 | 2012-11-28 | Cone hole compression structure dust-prevention cushion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202914741U true CN202914741U (en) | 2013-05-01 |
Family
ID=48163058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220638947 Expired - Fee Related CN202914741U (en) | 2012-11-28 | 2012-11-28 | Cone hole compression structure dust-prevention cushion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202914741U (en) |
-
2012
- 2012-11-28 CN CN 201220638947 patent/CN202914741U/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: 20130501 Termination date: 20131128 |