CN204175890U - A kind of expansion tightening wheel - Google Patents
A kind of expansion tightening wheel Download PDFInfo
- Publication number
- CN204175890U CN204175890U CN201420498998.8U CN201420498998U CN204175890U CN 204175890 U CN204175890 U CN 204175890U CN 201420498998 U CN201420498998 U CN 201420498998U CN 204175890 U CN204175890 U CN 204175890U
- Authority
- CN
- China
- Prior art keywords
- maincenter
- inner ring
- wall
- spacing
- ring
- 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
Links
Landscapes
- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model relates to auto parts and components, be specially a kind of expansion tightening wheel, described expansion tightening wheel comprises spacing maincenter, external connection portion, outer ring and inner ring, described spacing maincenter outer wall cover has bearing, outer wall and the inner ring inwall of this bearing are fitted, and described external connection portion comprises pedestal, eccentric mounting, and described base bottom surface offers mounting groove, described eccentric mounting offers input hole, this input hole and mounting groove through; Restraining groove is provided with between the outer wall of described spacing maincenter and bearing inner wall, be provided with some steel balls in restraining groove, each steel ball described rolls with restraining groove and is connected, and is provided with outer support section between described outer ring and inner ring avris, this outer support section is provided with tapered protrusion, and described inner ring is provided with outer protective cover; Described outer protective cover comprises cover body and linkage section, and fitting with tapered protrusion and inner ring respectively in the inside and outside two side of described linkage section, is provided with active chamber between described outer protective cover and inner ring.
Description
Technical field
The utility model relates to auto parts and components, is specially a kind of expansion tightening wheel.
Background technique
The effect of expansion tightening wheel is used to the elasticity regulating Timing Belt, and general Timing Belt of following is changed together, to avoid trouble and worry.Manual tune tension device tightening belt, needs very large power to rotate tension device, affects working efficiency.
The outer ring of traditional tension device and the joint of inner ring can easily by oil or, dust and other environmental contaminants make dirty, the quantity of these pollutant accumulations is many can affect the normal operation of tension device.
Model utility content
The purpose of this utility model is to provide a kind of rational in infrastructure, simple, practical, and manual tune exerts a force little tension device.
For meeting above-mentioned purpose, the utility model provides a kind of effective technological scheme:
A kind of expansion tightening wheel, it is characterized in that: described expansion tightening wheel comprises spacing maincenter, external connection portion, outer ring and inner ring, described spacing maincenter outer wall cover has bearing, outer wall and the inner ring inwall of this bearing are fitted, described external connection portion comprises pedestal, eccentric mounting, described base bottom surface offers mounting groove, and described eccentric mounting offers input hole, this input hole and mounting groove through; Maincenter chamber is provided with in described spacing maincenter, the left side outer wall of described spacing maincenter is connected with the cell wall of mounting groove, and the right side wall of spacing maincenter offering the delivery outlet of corresponding input hole position, the equal diameters of described input hole and delivery outlet, described eccentric mounting is provided with circular protrusions; Some stiffening ribs are provided with between the inwall of described outer ring and interior ring outer wall, restraining groove is provided with between the outer wall of described spacing maincenter and bearing inner wall, some steel balls are installed in restraining groove, each steel ball described rolls with restraining groove and is connected, outer support section is provided with between described outer ring and inner ring avris, this outer support section is provided with tapered protrusion, and described inner ring is provided with outer protective cover; Described outer protective cover comprises cover body and linkage section, and fitting with tapered protrusion and inner ring respectively in the inside and outside two side of described linkage section, is provided with active chamber between described outer protective cover and inner ring.
Contrast the deficiencies in the prior art, the beneficial effect that the technological scheme that the utility model provides is brought:
1. this tension device adds external connection portion, and the setting of external connection portion adds the centre distance that traditional tension device drives section, also means and adds moment, therefore easily exert a force in the process of manual tune tightening belt; This external connection portion comprises pedestal and eccentric mounting, and the circular protrusions on eccentric mounting, for connecting spanner, is enclosed within circular protrusions by spanner, and drive external connection portion to rotate, tension device starts tightening belt.
2. the application is provided with outer protective cover outside the joint of outer ring and inner ring, can stop that extraneous pollutant enters, and the linkage section of outer protective cover is pressed in centre by outer ring and inner ring, and three links into an integrated entity, and can not affect the rotation of tension device.
Accompanying drawing explanation
Fig. 1 is main sectional view of the present utility model.
Fig. 2 is modular construction figure of the present utility model.
Embodiment
As shown in Figure 1: expansion tightening wheel comprises spacing maincenter 1, external connection portion 2, outer ring 3 and inner ring 4, described spacing maincenter 1 outer wall cover has bearing 5, outer wall and inner ring 4 inwall of this bearing 5 are fitted, described external connection portion 2 comprises pedestal 21, eccentric mounting 22, described pedestal 21 bottom surface offers mounting groove 23, described eccentric mounting 22 offers input hole 20, and this input hole 20 is through with mounting groove 23; Maincenter chamber 11 is provided with in described spacing maincenter 1, the left side outer wall of described spacing maincenter 1 is connected with the cell wall of mounting groove 23, and the right side wall of spacing maincenter 1 offers the delivery outlet 10 of corresponding input hole 20 position, the equal diameters of described input hole 20 and delivery outlet 10, driving passage is through with between described input hole, maincenter chamber and delivery outlet, this driving passage is in order to install live axle, and described eccentric mounting 22 is provided with circular protrusions 220; Some stiffening ribs 8 are provided with between the inwall intermediate section of described outer ring 3 and interior ring outer wall intermediate section, restraining groove is provided with between the outer wall of described spacing maincenter 1 and bearing 5 inwall, some steel balls 50 are installed in restraining groove, each steel ball 50 described rolls with restraining groove and is connected, outer support section 6 is provided with between described outer ring 3 and inner ring 4 avris, this outer support section 6 is provided with tapered protrusion, and described inner ring 4 is provided with outer protective cover 7; Described outer protective cover 7 comprises cover body 71 and linkage section 72, and fitting with tapered protrusion and inner ring 4 respectively in the described inside and outside two side of linkage section 72, is provided with active chamber between described outer protective cover and inner ring, and this active chamber is in order to the space of input shaft activity.
Claims (1)
1. an expansion tightening wheel, it is characterized in that: described expansion tightening wheel comprises spacing maincenter, external connection portion, outer ring and inner ring, described spacing maincenter outer wall cover has bearing, outer wall and the inner ring inwall of this bearing are fitted, described external connection portion comprises pedestal, eccentric mounting, described base bottom surface offers mounting groove, and described eccentric mounting offers input hole, this input hole and mounting groove through; Maincenter chamber is provided with in described spacing maincenter, the left side outer wall of described spacing maincenter is connected with the cell wall of mounting groove, and the right side wall of spacing maincenter offers the delivery outlet of corresponding input hole position, the equal diameters of described input hole and delivery outlet, is through with driving passage between described input hole, maincenter chamber and delivery outlet; Described eccentric mounting is provided with circular protrusions; Some stiffening ribs are provided with between the inwall of described outer ring and interior ring outer wall, restraining groove is provided with between the outer wall of described spacing maincenter and bearing inner wall, some steel balls are installed in restraining groove, each steel ball described rolls with restraining groove and is connected, outer support section is provided with between described outer ring and inner ring avris, this outer support section is provided with tapered protrusion, and described inner ring is provided with outer protective cover; Described outer protective cover comprises cover body and linkage section, and fitting with tapered protrusion and inner ring respectively in the inside and outside two side of described linkage section, is provided with active chamber between described outer protective cover and inner ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498998.8U CN204175890U (en) | 2014-09-01 | 2014-09-01 | A kind of expansion tightening wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420498998.8U CN204175890U (en) | 2014-09-01 | 2014-09-01 | A kind of expansion tightening wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175890U true CN204175890U (en) | 2015-02-25 |
Family
ID=52564701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420498998.8U Expired - Fee Related CN204175890U (en) | 2014-09-01 | 2014-09-01 | A kind of expansion tightening wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377582A (en) * | 2020-12-10 | 2021-02-19 | 蚌埠市广瑞机械有限公司 | Tensioner with adjustable tension |
-
2014
- 2014-09-01 CN CN201420498998.8U patent/CN204175890U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112377582A (en) * | 2020-12-10 | 2021-02-19 | 蚌埠市广瑞机械有限公司 | Tensioner with adjustable tension |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202690898U (en) | Reducer for cement mixer | |
| CN204175890U (en) | A kind of expansion tightening wheel | |
| CN203023309U (en) | Novel rack bearing box | |
| CN203664693U (en) | Lathe spindle | |
| CN203281369U (en) | Connection device for big gear and cylinder body of ball mill | |
| CN203526898U (en) | Bearing installer of idler wheel | |
| CN201202809Y (en) | Stationary ring adjustable mechanical sealing device | |
| CN204942430U (en) | A kind of motor expansion tightening wheel mechanism | |
| CN204025113U (en) | Industrial fan | |
| CN208734835U (en) | A kind of Anti-pressure gear ring | |
| CN203189775U (en) | Top-loading fixed ball valve | |
| CN202561035U (en) | Shaft end sealing structure for bearing box body | |
| CN202300986U (en) | High-pressure pump for connecting rod | |
| CN202729667U (en) | Output structure of lorry-mounted crane turning device | |
| CN205260842U (en) | A adjusting device for sink roll mechanical seal | |
| CN203818118U (en) | Shell assembly assembling overturning support | |
| CN204387127U (en) | A kind of bearing with bearing support | |
| CN203567797U (en) | Adjustable elastic gear rack bushing | |
| CN104669930A (en) | Wheel hub unit | |
| CN203627797U (en) | Sealing ring structure for roller shaft end of belt conveyor | |
| CN204149094U (en) | A kind of electric tightening machine function expanding device | |
| CN203604112U (en) | Driving/damping device | |
| CN202812073U (en) | Air compressor gear with internally fixed rubber sleeve | |
| CN203155928U (en) | Roll riveting machine spindle box | |
| CN203448303U (en) | Building material processing screening device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20190901 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |