CN202883907U - Automatic tensioning wheel and engine with the same - Google Patents
Automatic tensioning wheel and engine with the same Download PDFInfo
- Publication number
- CN202883907U CN202883907U CN 201220438675 CN201220438675U CN202883907U CN 202883907 U CN202883907 U CN 202883907U CN 201220438675 CN201220438675 CN 201220438675 CN 201220438675 U CN201220438675 U CN 201220438675U CN 202883907 U CN202883907 U CN 202883907U
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- CN
- China
- Prior art keywords
- automatic tensioner
- spring
- automatic
- support plate
- axle sleeve
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- 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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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16H—GEARING
- F16H7/00—Gearings for conveying rotary motion by endless flexible members
- F16H7/08—Means for varying tension of belts, ropes, or chains
- F16H2007/0802—Actuators for final output members
- F16H2007/081—Torsion springs
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- Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
Abstract
The utility model discloses an automatic tensioning wheel. The automatic tensioning wheel comprises a body 1, a support plate 2, a spring 3, a belt wheel 12, a shaft bolt 14, a bearing 16, a connecting arm 19, a rotary center shaft 18 and a connecting arm 19. A centre shaft sleeve 5 is sleeved on the rotary centre shaft 18 and is provided with external threads. The centre shaft sleeve 5 is uniform in stress, the probability of generating eccentric wear is greatly lowered, risks of early failure is lowered, product service life is long, and convenience is brought for engine assembling staff to easily assemble belts.
Description
Technical field
The utility model relates to a kind of automatic tensioner and the motor of this automatic tensioner is housed.
Background technique
Be widely used belt transmission in the motor car engine, in the belt working procedure, use tension pulley to keep the belt tension of appropriateness to be absolutely necessary, bel-drivenn train accessory system is installed on the front surface of motor usually, each annex is installed on the belt pulley on the axle, is used for receiving the power that the belt from certain form transmits.
Usually adopt single serpentine belt in most motor car engines, single belt circuitous between each appurtenances drives described annex, the use of belt is so that engine device is compacter, cost is lower, efficient is high, but simultaneously, should have predetermined tension force during the belt normal operation, when running, surpassing its length thereby belt elongates slightly causes the decline of belt tension to cause easily belt slippage, when transmitting with single band, can cause because the length of single band is longer the generation of more serious belt slippage phenomenon, therefore in the belt working procedure, use the belt pulley based part of the suitable belt tension of tension pulley maintenance to be absolutely necessary.
The patent No. be ZL201020525151.6 the Chinese utility model patent mandate a kind of automatic tension pulley of front gear planetary of engine, comprise belt pulley and the support plate that is connected belt pulley, the spring supporting cover is installed on the support plate, mounting spring between support plate and spring supporting external member, on the side of support plate and spring supporting cover latch is set, block is set on the support plate, the outer surface of spring supporting cover is carved with groove, this automatic tensioner need not to adjust, automatic tensioner just automatic impaction belt forms certain tension force, simultaneously can remind the operator correctly to use Idle wheel, the operating range of Idle wheel has improved the efficient of whole drive train and the working life of Idle wheel and belt, simultaneously within groove, it is more convenient to operate, and has saved the activity duration.
Although this kind Idle wheel makes things convenient for the engine assembly belt, but the stressed arm of force of automatic tensioner is long, it is excessive to act on central shaft load, eccentric wear occurs in central axle sleeve and axle sleeve easily, cause Idle wheel early failue, the arm of force that is subjected to of this kind Idle wheel shortens in addition, but the installation of inconvenient dynamo belt.
Summary of the invention
For overcoming above-mentioned shortcomings and deficiencies of the prior art, the purpose of this utility model is to provide a kind of automatic tensioner, the stressed arm of force of this automatic tensioner is short, the power that central axle sleeve and axle sleeve bear is distributed in the central position, stressed all with, the probability that eccentric wear occurs reduces the early failue Risk Reduction greatly, product is normal working life, is convenient to the engine assembly employee and easily assembles belt.
For achieving the above object, first purpose of the utility model is to provide a kind of automatic tensioner, comprise body, support plate, spring, belt pulley, axle bolt, bearing, link arm, rotary middle spindle, link arm, cover has central axle sleeve on the rotary middle spindle, described central axle sleeve is provided with outside thread, is conducive to adjust automatic tensioner damping torque, satisfies the requirement of design damping ratio, reduce because of damping little, the adverse effect that automatic tensioner arm swinging is large; Also can avoid simultaneously the risk because of the too large aggravation belt wearing and tearing of damping, described central axle sleeve with is connected with blanking cover by the outside thread on the central axle sleeve, big or small by rotating the damping of blanking cover adjusting automatic tensioner.
Preferably, the end face of described blanking cover is provided with the slope, and the end face center of described blanking cover is provided with tapped hole.
Preferably, described central axle sleeve and body, central axle sleeve cooperates with the support plate gap.
Preferably, be provided with spring between described support plate and the body, described spring fitting is on the attachment face of described body.
Preferably, be provided with the spring backing plate between the attachment face of described body and the described spring.
Preferably, described spring pad sleeve-board is on described body.
Preferably, described spring by the spring pad sleeve-board on the attachment face of described body and with the body movable contact.
Preferably, be provided with lasso between described body and the described spring.
Preferably, described lasso be enclosed within on the described body and with end face, the spring movable contact of described body.
Preferably, described belt pulley is fixedly connected with bearing.
Preferably, be provided with circlip for hole between described belt pulley and the bearing.
Preferably, on the described rotary middle spindle also cover dish spring, wearing plate arranged and place in the groove of support plate.
Preferably, be provided with the dish spring between described wearing plate and the support plate, movable contact between described support plate and the dish spring, between dish spring and the wearing plate.
Preferably, described body is provided with the installation pin.
Preferably, offer on the described body along the hollow slot of the circumferencial direction that pin is installed.
Preferably, described axle bolt passes described bearing successively, dust cover is fixedly connected with link arm.
Preferably, described bearing is deep groove ball bearing
Preferably, the friction position of described spring scribbles oiling agent.
Preferably, the friction part of described antifriction plate scribbles oiling agent.
Preferably, described link arm offers the building emptying aperture.
Preferably, described support plate is provided with dustproof sprue.
Second purpose of the present utility model is to provide a kind of motor, and it adopts the automatic tensioner in the utility model.
Description of drawings
Fig. 1 is for preferably executing the sectional structure schematic representation of example according to one of Idle wheel of the present utility model.
Fig. 2 is embodiment's according to Idle wheel of the present utility model shown in Figure 1 right TV structure schematic representation.
Fig. 3 is the structural representation of the central axle sleeve among Fig. 1.
Fig. 4 is the structural representation of body among Fig. 1.
Fig. 5 is the structural representation of blanking cover among Fig. 1.
Embodiment
Below in conjunction with accompanying drawing one of the automatic tensioner shown in the utility model is preferably implemented to be further elaborated explanation.
Such as Fig. 1, Fig. 3, Fig. 5, shown in, a kind of automatic tensioner, comprise body 1, support plate 2, spring 3, belt pulley 12, axle bolt 14, bearing 16, link arm 19, rotary middle spindle 18, rotary middle spindle 18 overcoats have central axle sleeve 5, central axle sleeve 5 and blanking cover 10 are fixedly connected with by screw thread, the end face of blanking cover 10 is provided with the slope, the end face center of blanking cover 10 is provided with tapped hole, central axle sleeve 5 is connected with blanking cover 10 by the outside thread on the central axle sleeve 5, regulate automatic tensioner damping size by rotation blanking cover 10, and the design of end face gradient, the power that helps blanking cover to act on the wearing plate 9 is evenly distributed on the dish spring 7, and central axle sleeve (5) is provided with outside thread, be conducive to adjust automatic tensioner damping torque, satisfy the requirement of design damping ratio, reduce because of damping little, the adverse effect that automatic tensioner arm swinging is large; Also can avoid simultaneously the risk because of the too large aggravation belt wearing and tearing of damping, the power that central axle sleeve (5) bears is evenly distributed on the central position, stressed equal, the probability that eccentric wear occurs reduces greatly, the early failue Risk Reduction, be conducive to improve product working life, be convenient to the engine assembly employee and easily assemble belt.
Such as Fig. 2, Fig. 3, shown in Figure 4, described body 1 is provided with the installation pin.Offer on the described body 1 along the hollow slot 17 of the circumferencial direction that pin is installed, root concavity groove 17 degree of depth that pin is installed are 1-5mm, when avoiding assembling and the interference in pin control hole, reduced because Assembly Interference, the parallelism error of the automatic tensioner that causes and motor installation base surface, the coplanarity of raising Idle wheel and train.
Such as Fig. 1, Fig. 2, body 1 shown in Figure 4, the installation pin of described body 1 when the Idle wheel in the utility model is installed, installs and fixes Idle wheel with bolt, after support plate 2 is torqued into the maximum functional corner, be returned in the process of free position freely, without clamping stagnation.
Need to prove, comprise combination in any between the each part mentioned above according to the category of the technological scheme of automatic tensioner of the present utility model.
Abovely describe in detail in conjunction with specific embodiment of the utility model, but be not to be to restriction of the present utility model, every foundation technical spirit of the present utility model all belongs to technical scope of the present utility model to any simple modification that above embodiment does.
Claims (21)
1. automatic tensioner, comprise body (1), support plate (2), spring (3), belt pulley (12), axle bolt (14), bearing (16), link arm (19), rotary middle spindle (18), link arm (19), the upper cover of rotary middle spindle (18) has central axle sleeve (5), it is characterized in that: described central axle sleeve (5) is provided with outside thread, be conducive to adjust automatic tensioner damping torque, satisfy the requirement of design damping ratio, reduce because of damping little, the adverse effect that automatic tensioner arm swinging is large; Also can avoid simultaneously the risk because of the too large aggravation belt wearing and tearing of damping, described central axle sleeve (5) is connected with blanking cover (10) by the outside thread on the central axle sleeve (5), regulates automatic tensioner damping size by rotation blanking cover (10).
2. automatic tensioner as claimed in claim 1, it is characterized in that: the end face of described blanking cover (10) is provided with the slope, and the end face center of described blanking cover (10) is provided with tapped hole.
3. automatic tensioner as claimed in claim 1 is characterized in that: described central axle sleeve (5) and body (1), central axle sleeve (5) cooperates with support plate (2) gap.
4. such as claim 1 or 3 described automatic tensioners, it is characterized in that: be provided with spring (3) between described support plate (2) and the body (1), described spring (3) is installed on the attachment face of described body (1).
5. automatic tensioner as claimed in claim 4 is characterized in that: be provided with spring backing plate (4) between the attachment face of described body (1) and the described spring (3).
6. automatic tensioner as claimed in claim 5, it is characterized in that: described spring backing plate (4) is enclosed within on the described body (1).
7. automatic tensioner as claimed in claim 5 is characterized in that: described spring (3) be enclosed within by spring backing plate (4) on the attachment face of described body (1) and with body (1) movable contact.
8. such as claim 1 or 7 described automatic tensioners, it is characterized in that: be provided with lasso (8) between described body (1) and the described spring (3).
9. automatic tensioner as claimed in claim 8 is characterized in that: described lasso (8) be enclosed within described body (1) upper and with end face, spring (3) movable contact of described body (1).
10. automatic tensioner as claimed in claim 1, it is characterized in that: described belt pulley (12) is fixedly connected with bearing (16).
11. such as claim 1 or 10 described automatic tensioners, it is characterized in that: be provided with circlip for hole (15) between described belt pulley (12) and the bearing (16).
12. automatic tensioner as claimed in claim 1 is characterized in that: on the described rotary middle spindle (18) also cover dish spring (7), wearing plate (9) arranged and place in the groove of support plate (2).
13. automatic tensioner as claimed in claim 12 is characterized in that: be provided with dish spring (7) between described wearing plate (9) and the support plate (2), movable contact between described support plate (2) and the dish spring (7), between dish spring (7) and the wearing plate (9).
14. such as claim 1 or 3 described automatic tensioners, it is characterized in that: described body (1) is provided with the installation pin.
15. automatic tensioner as claimed in claim 14 is characterized in that: offer on the described body (1) along the hollow slot (17) of the circumferencial direction that pin is installed.
16. automatic tensioner as claimed in claim 1 is characterized in that: described axle bolt (14) passes described bearing (16), is fixedly connected with link arm (19).
17. the automatic tensioner as claim 1 or 16 is stated is characterized in that: described bearing (16) is deep groove ball bearing.
18. automatic tensioner as claimed in claim 4 is characterized in that: the friction position of described spring (3) scribbles oiling agent.
19. automatic tensioner as claimed in claim 12 is characterized in that: the friction part of described antifriction plate (9) scribbles oiling agent.
20. automatic tensioner as claimed in claim 1 is characterized in that: described support plate (2) is provided with dustproof sprue (11).
21. motor has automatic tensioner, it is characterized in that: adopt the automatic tensioner described in above-mentioned any claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220438675 CN202883907U (en) | 2012-08-31 | 2012-08-31 | Automatic tensioning wheel and engine with the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220438675 CN202883907U (en) | 2012-08-31 | 2012-08-31 | Automatic tensioning wheel and engine with the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202883907U true CN202883907U (en) | 2013-04-17 |
Family
ID=48075338
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220438675 Expired - Fee Related CN202883907U (en) | 2012-08-31 | 2012-08-31 | Automatic tensioning wheel and engine with the same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202883907U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016658A (en) * | 2012-12-18 | 2013-04-03 | 潍柴动力股份有限公司 | Diesel engine and belt tightening pulley thereof |
| CN108519239A (en) * | 2018-04-18 | 2018-09-11 | 江苏希西维轴承有限公司 | A kind of automobile tension pulley testing machine |
-
2012
- 2012-08-31 CN CN 201220438675 patent/CN202883907U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103016658A (en) * | 2012-12-18 | 2013-04-03 | 潍柴动力股份有限公司 | Diesel engine and belt tightening pulley thereof |
| CN103016658B (en) * | 2012-12-18 | 2016-08-10 | 潍柴动力股份有限公司 | A kind of Diesel engine |
| CN108519239A (en) * | 2018-04-18 | 2018-09-11 | 江苏希西维轴承有限公司 | A kind of automobile tension pulley testing machine |
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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: 20190831 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |