CN202883958U - Ratchet type one-way belt pulley - Google Patents
Ratchet type one-way belt pulley Download PDFInfo
- Publication number
- CN202883958U CN202883958U CN 201220539232 CN201220539232U CN202883958U CN 202883958 U CN202883958 U CN 202883958U CN 201220539232 CN201220539232 CN 201220539232 CN 201220539232 U CN201220539232 U CN 201220539232U CN 202883958 U CN202883958 U CN 202883958U
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- CN
- China
- Prior art keywords
- belt pulley
- ratchet wheel
- fixed
- ratchet
- sleeve
- 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 relates to a ratchet type one-way belt pulley comprising the belt pulley, a support bearing and a mandrel connection sleeve. A ratchet mechanism is installed between the support bearing and the mandrel connection sleeve, the ratchet mechanism comprises a fixed ratchet sleeve, a movable ratchet sleeve, a spring and a spring seat bowl, wherein racket teeth matched with each other are arranged on the opposite end faces of the fixed ratchet sleeve and the movable ratchet sleeve, the fixed ratchet sleeve is fixed on the inner wall of the belt pulley, the movable ratchet sleeve is axially in sliding fit with the mandrel connection sleeve, the spring seat bowl is fixed on the outer side of the movable ratchet sleeve, the spring is installed between the movable ratchet sleeve and the spring seat bowl, and the movable ratchet sleeve and the fixed ratchet sleeve are of a meshed state under the thrust effect of the spring. According to the ratchet type one-way belt pulley, the plane meshed type ratchet mechanism is installed between the belt pulley and the mandrel connection sleeve, heat is not generated basically, and the service life of the one-way belt pulley can be effectively improved.
Description
Technical field
The utility model relates to one-way belt sheave, specifically a kind of Ratcheting one-way belt pulley that skids for the unidirectional delivery power reverse on the medium-to-high grade automobile current generator.
Background technique
One-way belt sheave has the function of unidirectional delivery moment, and its internal structure is equivalent to an overrunning clutch.When it adopts the roller meshing engagement structure, because roller is in engagement all the time under the effect of spring thrust, can produce higher temperature in belt pulley effect because of surface friction drag when oppositely skidding, cause the spring heating to be followed the string, grease is dry, the disabler of belt pulley unidirectional delivery moment.Therefore roller is meshed the surface roughness requirement at position, concentricity requirement is all very high, and this position is comprised of the circular arc of different curvature radius, can not adopt the mode of grinding to improve surface roughness, must when extrusion moulding, directly guarantee surface roughness, so difficulty is higher.
Summary of the invention
The utility model provides the Ratcheting one-way belt pulley of a kind of reliable operation, long service life for the problems referred to above.
According to the technical solution of the utility model: a kind of Ratcheting one-way belt pulley, comprise belt pulley, block bearing and mandrel connecting sleeve, described belt pulley is bearing on the described mandrel connecting sleeve by two described block bearings, between described belt pulley and the described mandrel connecting sleeve ratchet mechanism is installed, described ratchet mechanism comprises the fixed ratchet wheel cover, the adjustable ratchet wheel case, spring and spring seat bowl, described fixed ratchet wheel overlaps on the end face relative with described adjustable ratchet wheel case and is provided with the hook tooth that matches, described fixed ratchet wheel cover is fixed on the inwall of described belt pulley, the axial sliding fit of described adjustable ratchet wheel case is on described mandrel connecting sleeve, described spring seat bowl is fixed on the outside of described adjustable ratchet wheel case, described spring fitting is between described adjustable ratchet wheel case and described spring seat bowl, and described adjustable ratchet wheel case and described fixed ratchet wheel cover are in engagement under the thrust of described spring.
Described adjustable ratchet wheel case is installed on the described mandrel connecting sleeve by spline.
Described ratchet mechanism is between two described block bearings.
Be provided with the anti-avulsion step on the outer wall of described belt pulley.
Technique effect of the present utility model is: the utility model is equipped with the engagement type ratchet mechanism in plane between belt pulley and mandrel connecting sleeve, carry-over moment when belt pulley is rotated in the forward can not produce the friction phenomenon that skids; Hook tooth was thrown off voluntarily when belt pulley surmounted running, and the ratchet both ends of the surface have the phenomenon of slight friction, basically do not produce heat, can effectively improve the working life of one-way belt sheave.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Embodiment
Below in conjunction with accompanying drawing embodiment of the present utility model is further described.
Among Fig. 1, comprise belt pulley 1, fixed ratchet wheel cover 2, adjustable ratchet wheel case 3, spring 4, spring seat bowl 5, block bearing 6, mandrel connecting sleeve 7, anti-avulsion step 8 etc.
As shown in Figure 1, the utility model is a kind of Ratcheting one-way belt pulley, comprises belt pulley 1, block bearing 6 and mandrel connecting sleeve 7, and belt pulley 1 is bearing on the mandrel connecting sleeve 7 by two block bearings 6.Between belt pulley 1 and mandrel connecting sleeve 7 ratchet mechanism is installed, ratchet mechanism is between two block bearings 6.
Ratchet mechanism comprises fixed ratchet wheel cover 2, adjustable ratchet wheel case 3, spring 4 and spring seat bowl 5.Be provided with the hook tooth that matches, the engagement type ratchet in formation plane on the relative end face of fixed ratchet wheel cover 2 and adjustable ratchet wheel case 3.Fixed ratchet wheel cover 2 is fixed on the inwall of belt pulley 1, and 3 axial sliding fits of adjustable ratchet wheel case can axial motion on mandrel connecting sleeve 7, and for example adjustable ratchet wheel case 3 is installed on the mandrel connecting sleeve 7 by spline.Spring seat bowl 5 is fixed on the outside of adjustable ratchet wheel case 3, and spring 4 is installed between adjustable ratchet wheel case 3 and the spring seat bowl 5, and adjustable ratchet wheel case 3 is in engagement with fixed ratchet wheel cover 2 under the thrust of spring 4.
On the outer wall of belt pulley 1, also be provided with anti-avulsion step 8, can prevent effectively that belt pulley 1 from deviating from when running up.
Working principle of the present utility model is as follows: the utility model is equipped with the engagement type ratchet mechanism in plane between belt pulley 1 and mandrel connecting sleeve 7, forward moment is transmitted in the engagement of two hook tooths under the effect of spring thrust, hook tooth is thrown off when the belt pulley antiport, thereby realizes the function of unidirectional delivery moment.
Both ends of the surface ratchet of the present utility model is in engagement all the time under the effect of spring 4 thrusts, carry-over moment when belt pulley 1 is rotated in the forward can not produce the friction phenomenon that skids reliably; Hook tooth is thrown off voluntarily when belt pulley 1 surmounts running, not carry-over moment.Both ends of the surface had the phenomenon of slight friction when end ratchet was thrown off, therefore belt pulley does not in use produce heat basically, this working environment to the block bearing 6 at the lubricant grease of the inside and two ends all is improved, and can effectively improve the working life of one-way belt sheave.
The utility model component are few, and are simple in structure, assemble also simple.
Claims (4)
1. Ratcheting one-way belt pulley, comprise belt pulley (1), block bearing (6) and mandrel connecting sleeve (7), described belt pulley (1) is bearing on the described mandrel connecting sleeve (7) by two described block bearings (6), it is characterized in that: between described belt pulley (1) and the described mandrel connecting sleeve (7) ratchet mechanism is installed, described ratchet mechanism comprises fixed ratchet wheel cover (2), adjustable ratchet wheel case (3), spring (4) and spring seat bowl (5), be provided with the hook tooth that matches on described fixed ratchet wheel cover (2) end face relative with described adjustable ratchet wheel case (3), described fixed ratchet wheel cover (2) is fixed on the inwall of described belt pulley (1), described adjustable ratchet wheel case (3) axial sliding fit is on described mandrel connecting sleeve (7), described spring seat bowl (5) is fixed on the outside of described adjustable ratchet wheel case (3), described spring (4) is installed between described adjustable ratchet wheel case (3) and the described spring seat bowl (5), and described adjustable ratchet wheel case (3) is in engagement with described fixed ratchet wheel cover (2) under the thrust of described spring (4).
2. according to Ratcheting one-way belt pulley claimed in claim 1, it is characterized in that: described adjustable ratchet wheel case (3) is installed on the described mandrel connecting sleeve (7) by spline.
3. according to Ratcheting one-way belt pulley claimed in claim 1, it is characterized in that: described ratchet mechanism is positioned between two described block bearings (6).
4. according to Ratcheting one-way belt pulley claimed in claim 1, it is characterized in that: be provided with anti-avulsion step (8) on the outer wall of described belt pulley (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220539232 CN202883958U (en) | 2012-10-20 | 2012-10-20 | Ratchet type one-way belt pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220539232 CN202883958U (en) | 2012-10-20 | 2012-10-20 | Ratchet type one-way belt pulley |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202883958U true CN202883958U (en) | 2013-04-17 |
Family
ID=48075389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220539232 Expired - Fee Related CN202883958U (en) | 2012-10-20 | 2012-10-20 | Ratchet type one-way belt pulley |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202883958U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900829A (en) * | 2012-10-20 | 2013-01-30 | 无锡市神力齿轮冷挤有限公司 | Ratchet-type one-way belt pulley |
| CN106988869A (en) * | 2017-04-27 | 2017-07-28 | 吴坤柳 | Straight line/rotation switching mechanism and engine |
-
2012
- 2012-10-20 CN CN 201220539232 patent/CN202883958U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102900829A (en) * | 2012-10-20 | 2013-01-30 | 无锡市神力齿轮冷挤有限公司 | Ratchet-type one-way belt pulley |
| CN102900829B (en) * | 2012-10-20 | 2015-11-11 | 无锡市神力齿轮冷挤有限公司 | Ratcheting one-way belt pulley |
| CN106988869A (en) * | 2017-04-27 | 2017-07-28 | 吴坤柳 | Straight line/rotation switching mechanism and engine |
| CN106988869B (en) * | 2017-04-27 | 2022-12-09 | 吴坤柳 | Linear/rotary conversion mechanism and engine |
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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: 20130417 Termination date: 20161020 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |