CN204512322U - A kind of tractor belt automatic tension control device - Google Patents
A kind of tractor belt automatic tension control device Download PDFInfo
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- CN204512322U CN204512322U CN201420793473.7U CN201420793473U CN204512322U CN 204512322 U CN204512322 U CN 204512322U CN 201420793473 U CN201420793473 U CN 201420793473U CN 204512322 U CN204512322 U CN 204512322U
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- movable link
- idle wheel
- hydraulic cylinder
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Abstract
The utility model discloses a kind of tractor belt automatic tension control device, which includes rotating hydraulic cylinder driving mechanism, Idle wheel leverage and a set of linkage mechanism realizing transmission.Rotating hydraulic cylinder driving mechanism comprises rotating hydraulic cylinder and coupling composition, and drive shaft rotates a tilt fixing, and Idle wheel leverage comprises Idle wheel, lever and spring, by pull-up spring, Idle wheel is moved down thus realizes belt wheel tensioning.Linkage mechanism includes 5 movable links, and each component, all with chain connection, achieves affecting of spring by rotation, has the auto-lock function of linkage mechanism simultaneously.The utility model can by the location of the control realization Idle wheel to oil cylinder and stepper motor.
Description
Technical field
The utility model relates to electromechanical control field, in particular, relates to a kind of tractor belt automatic tension control device.
Background technique
Tractor belt automatic tension control device is to meet farm tractor bel-drivenn needs, electronic technology is combined with mechanical technique and a kind of Novel belt tensioning developed takes turns the positioning device that position can control automatically.It not only can realize the location self-locking of Idle wheel in mechanism, can also adopt to carry controlled power plant and realize belt transmission tensioning control and the self-locking of Idle wheel position on tractor driving operating position.
Idle wheel positioning device is the tension device of V belt translation, avoid belt slippage to keep suitable belt tension, compensate belt wearing and tearing and aging after the elongation that causes, adjusting deviation, eliminate abnormal sound, tension pulley mechanism is essential.Idle wheel is primarily of compositions such as stationary housing, tension arms, wheel body, torsion spring, rolling bearing and spring axle sleeves, and tightness that can be different according to belt, adjusts tension force, thus better belt transmission of power controls.Its performance quality directly affects the reliability of belt work.But Idle wheel using process Problems existing has, when tension pulley operates, the belt shake of running may evoke vibration in tension spring.These vibrations are undesirable, because they can cause belt and Idle wheel premature abrasion.
For this phenomenon, design studies is expanded for the damping mechanism in tension wheel structure both at home and abroad, China Patent Publication No. CN1144892A, publication date on March 12nd, 1997, model utility is created name and is called belt tightener, and this application devises and between stretcher and support, utilizes spring forces damping member and the mechanism that produces damping force.In US Patent No. 4959042, propose the method for arranging engine accessory power rating, make the rotation inertia force of the annex near crank pulley maximum.This method does not rely on the roadability of Idle wheel, but relies on the dynamic characteristic based on the interleaved order of the described annex of rotary inertia.And accurately location is realized for remote control Idle wheel, thus reduce vibration and deviation, the content of this respect is but few.
Along with the progress of science and technology, the manually-operable of manual belt transmission power and fixed position control the needs that can not adapt to farm machinery intellectuality and tractor automatic job and driving, the intelligentized control method of tension pulley mechanism and the automation of control mechanism will replace existing control mode, become the Idle wheel positioning device the most generally used.
Model utility content
The purpose of this utility model is just to provide a kind of tractor belt automatic tension control device to solve the problem, the automated control technology of operating device is added for existing Idle wheel location technology, its object is to by the control to rotating hydraulic cylinder angle, Idle wheel positioning control is realized to Idle wheel, and positioning precision is high, alleviate operation labor intensity, be convenient to automatic control.
The utility model is achieved through the following technical solutions above-mentioned purpose:
A kind of tractor belt automatic tension control device, comprises rotating hydraulic cylinder driving mechanism, Idle wheel leverage, transmission connecting rod mechanism, and described fuel cylinder driving mechanism connects Idle wheel leverage by transmission connecting rod mechanism;
Described rotating hydraulic cylinder driving mechanism comprises rotating hydraulic cylinder and coupling;
Described transmission connecting rod mechanism comprises five movable links, be respectively the first movable link, second movable link, 3rd movable link, 4th movable link and the 5th movable link, each described movable link is all with chain connection, described rotating hydraulic cylinder connects the transmission shaft be arranged in frame by coupling, one end of described transmission shaft connects one end of the first movable link, the other end of described first movable link connects the second movable link successively, 3rd movable link, 4th movable link and the 5th movable link, described 4th movable link and frame are connected through the hinge, rotating hydraulic cylinder drives drive axis by coupling when driving, transmission shaft is by the first movable link, second movable link and the 3rd movable link drive the motion of the 4th movable link, form by the articulating point of the 4th movable link and frame the dead point that the 4th movable link moves simultaneously, cross rotating hydraulic cylinder not Driving Torque behind dead point,
Described Idle wheel leverage comprises Idle wheel, lever and spring, and one end of spring connects one end of the 5th movable link, and the other end of spring connects one end connection of lever, and the other end of lever connects Idle wheel, and Idle wheel is close on the belt of belt pulley.
As preferably, the frame at transmission shaft place is provided with limit stoper, and described limit stoper is by realizing the spacing of Idle wheel to the screens of described first movable link; The position that described limit stoper is fixed is determined by the stroke corner of rotating hydraulic cylinder.
As preferably, the mode that described transmission connecting rod mechanism crosses dead point by the 4th movable link carries out self-locking, realizes the self-locking of tension pulley mechanism.
As preferably, described limit stoper is welded in frame.
The beneficial effects of the utility model are: the utility model is simple and compact for structure, and cost of production is low; Because the angle of swing that have employed rotating hydraulic cylinder controls, the telecontrol of Idle wheel location can be realized; Do not need multioperation, as long as oil cylinder corner exceedes several angle, the mode just crossing dead point by linkage mechanism carries out self-locking, and self-locking is reliable for effect.
Accompanying drawing explanation
Fig. 1 is the non-tensioned working state schematic representation of a kind of tractor belt automatic tension control device described in the utility model.
Fig. 2 is the tensioning working state schematic representation of a kind of tractor belt automatic tension control device described in the utility model.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1 and Figure 2, a kind of tractor belt automatic tension control device, comprises rotating hydraulic cylinder 1 driving mechanism, Idle wheel 8 lever 7 mechanism, transmission connecting rod mechanism, and fuel cylinder driving mechanism connects Idle wheel 8 lever 7 mechanism by transmission connecting rod mechanism;
Rotating hydraulic cylinder 1 driving mechanism comprises rotating hydraulic cylinder 1 and coupling 2;
Transmission connecting rod mechanism comprises five movable links, be respectively the first movable link, second movable link, 3rd movable link, 4th movable link and the 5th movable link, each movable link is all with chain connection, rotating hydraulic cylinder 1 connects the transmission shaft be arranged in frame 4 by coupling 2, one end of transmission shaft connects one end of the first movable link, the other end of the first movable link connects the second movable link successively, 3rd movable link, 4th movable link and the 5th movable link, 4th movable link and frame 4 are connected through the hinge, rotating hydraulic cylinder 1 passes through coupling 2 and drives drive axis when driving, transmission shaft is by the first movable link, second movable link and the 3rd movable link drive the motion of the 4th movable link, form by the articulating point of the 4th movable link and frame 4 dead point that the 4th movable link moves simultaneously, cross rotating hydraulic cylinder 1 not Driving Torque behind dead point,
Idle wheel 8 lever 7 mechanism comprises Idle wheel 8, lever 7 and spring 5, one end of spring 5 connects one end of the 5th movable link, the other end of spring 5 connects one end connection of lever 7, and the other end of lever 7 connects Idle wheel 8, and Idle wheel 8 is close on the belt of belt pulley.
First movable link, the second movable link, the 3rd movable link and the 4th movable link one section jointly form arc dirivig member.
The frame 4 at transmission shaft place is provided with limit stoper 3, and limit stoper 3 is by realizing the spacing of Idle wheel 8 to the screens of the first movable link; The position that limit stoper 3 is fixed is determined by the stroke corner of rotating hydraulic cylinder 1.
The mode that transmission connecting rod mechanism crosses dead point by the 4th movable link carries out self-locking, realizes the self-locking of Idle wheel 8 mechanism.
Limit stoper 3 is welded in frame 4.
During device busy, control rotating hydraulic cylinder 1 to rotate forward, the rotation of the first movable link is driven by transmission shaft, thus drive the rotation of the second movable link, the 3rd movable link successively, 3rd movable link connects a run-on point of the 4th movable link, 4th movable link is hinged in frame 4, therefore five movable link hinged with another run-on point of the 4th movable link swings in the angle of rotation of certain limit, thus stretched spring; One end linking springs of lever, the other end connects Idle wheel 8, and the two swings around balance pivot 6, now drives Idle wheel 8 tensioning downwards; When the 4th movable link arrives dead point, rotating hydraulic cylinder 1 is limited and quit work, the self-locking of whole mechanism thus the tensioning state that is consistent.
After working state terminates, then rotation-controlled oil cylinder 1 rotates backward, and transmission shaft controls the first movable link and reaches limit stoper 3 place and stop operating Idle wheel is restPosed, and so work is carried out in circulation.
Above-described embodiment is preferred embodiment of the present utility model; it is not the restriction to technical solutions of the utility model; as long as without the technological scheme that creative work can realize on the basis of above-described embodiment, all should be considered as falling within the scope of the rights protection of the utility model patent.
Claims (4)
1. a tractor belt automatic tension control device, it is characterized in that: comprise rotating hydraulic cylinder (1) driving mechanism, Idle wheel (8) lever (7) mechanism, transmission connecting rod mechanism, described fuel cylinder driving mechanism connects Idle wheel (8) lever (7) mechanism by transmission connecting rod mechanism;
Described rotating hydraulic cylinder (1) driving mechanism comprises rotating hydraulic cylinder (1) and coupling (2);
Described transmission connecting rod mechanism comprises five movable links, be respectively the first movable link, second movable link, 3rd movable link, 4th movable link and the 5th movable link, each described movable link is all with chain connection, described rotating hydraulic cylinder (1) connects the transmission shaft be arranged in frame (4) by coupling (2), one end of described transmission shaft connects one end of the first movable link, the other end of described first movable link connects the second movable link successively, 3rd movable link, 4th movable link and the 5th movable link, described 4th movable link and frame (4) are connected through the hinge, drive axis is driven by coupling (2) when rotating hydraulic cylinder (1) drives, transmission shaft is by the first movable link, second movable link and the 3rd movable link drive the motion of the 4th movable link, form by the articulating point of the 4th movable link and frame (4) dead point that the 4th movable link moves simultaneously, cross rotating hydraulic cylinder (1) not Driving Torque behind dead point,
Described Idle wheel (8) lever (7) mechanism comprises Idle wheel (8), lever (7) and spring (5), one end of spring (5) connects one end of the 5th movable link, the other end of spring (5) connects one end connection of lever (7), the other end of lever (7) connects Idle wheel (8), and Idle wheel (8) is close on the belt of belt pulley.
2. a kind of tractor belt automatic tension control device according to claim 1, it is characterized in that: the frame (4) at transmission shaft place is provided with limit stoper (3), described limit stoper (3) is by realizing the spacing of Idle wheel (8) to the screens of described first movable link; The position that described limit stoper (3) is fixed is determined by the stroke corner of rotating hydraulic cylinder (1).
3. a kind of tractor belt automatic tension control device according to claim 1, is characterized in that: the mode that described transmission connecting rod mechanism crosses dead point by the 4th movable link carries out self-locking, realizes the self-locking of Idle wheel (8) mechanism.
4. a kind of tractor belt automatic tension control device according to claim 2, is characterized in that: described limit stoper (3) is welded in frame (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793473.7U CN204512322U (en) | 2014-12-16 | 2014-12-16 | A kind of tractor belt automatic tension control device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420793473.7U CN204512322U (en) | 2014-12-16 | 2014-12-16 | A kind of tractor belt automatic tension control device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204512322U true CN204512322U (en) | 2015-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420793473.7U Expired - Fee Related CN204512322U (en) | 2014-12-16 | 2014-12-16 | A kind of tractor belt automatic tension control device |
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| Country | Link |
|---|---|
| CN (1) | CN204512322U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565246A (en) * | 2014-12-16 | 2015-04-29 | 浙江四方集团公司 | Automatic tractor belt tension controller |
| CN105864377A (en) * | 2016-06-15 | 2016-08-17 | 刘银明 | Rotation adjusting device for belt tension pulleys |
-
2014
- 2014-12-16 CN CN201420793473.7U patent/CN204512322U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104565246A (en) * | 2014-12-16 | 2015-04-29 | 浙江四方集团公司 | Automatic tractor belt tension controller |
| CN104565246B (en) * | 2014-12-16 | 2017-05-10 | 浙江四方集团公司 | Automatic tractor belt tension controller |
| CN105864377A (en) * | 2016-06-15 | 2016-08-17 | 刘银明 | Rotation adjusting device for belt tension pulleys |
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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: 20150729 Termination date: 20171216 |
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| CF01 | Termination of patent right due to non-payment of annual fee |