CN204805451U - Straining device and have this straining device's combine - Google Patents
Straining device and have this straining device's combine Download PDFInfo
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- CN204805451U CN204805451U CN201520114705.6U CN201520114705U CN204805451U CN 204805451 U CN204805451 U CN 204805451U CN 201520114705 U CN201520114705 U CN 201520114705U CN 204805451 U CN204805451 U CN 204805451U
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- pulley support
- tension pulley
- spring
- pivot
- tensioning mechanism
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Abstract
The utility model relates to a belt transmission's straining device, it includes: the take -up pulley that can apply the tensile force to the belt is installed to mobilizable take -up pulley support on this take -up pulley support, formula pneumatic cylinder for the nonoculture, this pneumatic cylinder include cylinder body and piston rod, the cylinder body has the cylinder body end, the piston rod has piston rod terminus, wherein, the cylinder body terminal with one of them connection of piston rod terminus is on a fixed mounting seat, the cylinder body terminal with wherein another connection of piston rod terminus is in on the take -up pulley support, and spring, the one end of spring is installed on the mount pad, the other end is installed on the take -up pulley support to this spring is in pulling force bias voltage state all the time. The actuator disk to the take -up pulley is realized to this straining device accessible pneumatic cylinder to can adopt low -cost pneumatic cylinder for the nonoculture to realize straining device's separation and reunion function.
Description
Technical field
The utility model relates to a kind of tensioning mechanism, and has the combine-harvester of this tensioning mechanism.
Background technique
Belt transmission is a kind of typical power transmission mode, wherein, two parallel transmission shafts by the belt pulley on respective axle and the belt that is wound around over pulleys carried to realize transmission, and can by the tensioning of belt with cancel the clutch function that tensioning realizes in transmission process.From this respect, tension pulley serves in fact the effect of clutch.
At some big machineries, such as, on combine-harvester, belt transport power can be adopted widely, the Power output, the input of ceding of Taiwan power, the driving of unloading screw conveyor etc. of such as motor often adopt belt transmission to transmit power, and control transmission and the cut-out of power using tension pulley as clutch.In current combine-harvester, the operation of tension pulley is carried out mainly through tension pulley support, bracing wire and the handle be arranged in operator cabin.In order to operate Idle wheel to realize tightening belt or to cancel tensioning, driver needs to pull handle by very large strength, draws bracing wire and and then mobile Idle wheel by handle.This needs driver to carry out Joystick with larger power and/or stroke, frequent clutch operation in harvesting is easy to cause driver fatigue on the one hand, easily cause on the other hand the bracing wire that is connected with tension pulley support and handle easily because of stressed comparatively large and frequent and damage, easily can occur because handle takies the larger space in operator cabin in addition to touch because of carelessness and the clutch operation that leads to errors.
Model utility content
The purpose of this utility model be to solve the problem at least one of them.
Comprise for bel-drivenn tensioning mechanism according to of the present utility model: mobilizable tension pulley support, described tension pulley support is provided with the Idle wheel that can apply tension force to belt; Single-acting formula oil hydraulic cylinder, this oil hydraulic cylinder comprises cylinder body and piston rod, and described cylinder body has cylinder body end, and described piston rod has piston-rod end; Wherein, one of them of described cylinder body end and described piston-rod end is connected on a fixed mounting, described cylinder body end and described piston-rod end wherein another is connected on described tension pulley support; And spring, one end of described spring is arranged on described fitting seat, and the other end is arranged on described tension pulley support, and this spring is in pulling force bias state all the time.
By means of above-mentioned structure, easily can be realized by oil hydraulic cylinder the actuating of Idle wheel, and not need manual activation Idle wheel; Further, by the return effect of the spring be under tensile stress, piston rod is the position that restorable and then drive Idle wheel leave tightening belt under without high-pressure liquid effect, does not therefore need extra hydraulic pipe line to realize the return of piston rod.Thus, the single-action hydraulic cylinder of low cost can be adopted to realize the clutch function of tensioning mechanism.
In a preferred embodiment, described fixed mounting is provided with the first pivot, and is provided with the first spring mount on this first pivot; One of them of described cylinder body end and described piston-rod end is hinged on described first pivot, and one end of described spring is arranged on described first spring mount.Described first spring mount is provided with multiple first spring mounting hole, and one end of described spring can engage one of them of multiple first spring mounting hole selectively.In another preferred embodiment, described tension pulley support is provided with the second pivot, this second pivot is provided with the second spring mount; Described cylinder body end and described piston-rod end wherein another is hinged on described second pivot, and the other end of described spring is arranged on described second spring mount.Described second spring mount is provided with multiple second spring mounting hole, and the other end of described spring engages one of them of multiple second spring mounting hole selectively.
Above-mentioned setting installation of hydraulic jack and spring with simple constitution realization, can ensure that the direction of spring force is consistent with the telescopic direction of piston rod, and the restoring force of spring can be adjusted by changing its suspension point on the first and second spring mount.
In a preferred embodiment, described Idle wheel is arranged on one end of described tension pulley support, described second pivot is arranged on the other end of described tension pulley support, and this tension pulley support can around the tension pulley support pivot axis between described one end and the other end of this tension pulley support.Or preferably, one end of described tension pulley support is provided with described Idle wheel, and the other end of described tension pulley support is arranged on a tension pulley support pivotal axis, this tension pulley support around described tension pulley support pivot axis, and can be provided with described second pivot between described one end and the other end of this tension pulley support.
By the pivoted tension pulley support constructed above, installing space can be utilized neatly, and contribute to the oil hydraulic cylinder adopting different length flexibly.
In another preferred embodiment, described Idle wheel is arranged on one end of described tension pulley support, and described second pivot is arranged on the other end of described tension pulley support, and this tension pulley support moves along bracket track.By the effect of contraction of this track to tension pulley support, the straight line motion of tension pulley support can be realized.
During structure like this mobile, tension pulley support is without the need to using pivotal axis, is particularly suitable for not wishing to produce the occasion of interfering because tension pulley support rotates to neighbouring miscellaneous part, and also can be it and be equipped with oil hydraulic cylinder neatly.
Another aspect of the present utility model discloses a kind of combine-harvester, this combine-harvester has: the first transmission shaft, described first transmission shaft is with the first belt pulley, second driving shaft, described second driving shaft, with the second belt pulley, is wrapped in the belt on described first belt pulley and the second belt pulley; And tensioning mechanism as above, the Idle wheel of this tensioning mechanism can apply described belt or cancel tension force, thus realizes clutch action.
Accompanying drawing explanation
Fig. 1 schematically illustrates the bel-drivenn total structure adopting tensioning mechanism of the present utility model;
Fig. 2 particularly illustrates this tensioning mechanism with stereogram, particularly oil hydraulic cylinder wherein and spring and the mounting structure of the two.
Embodiment
Before being described in detail to any embodiment, should be understood that, application of the present utility model is not limited to the following describes middle proposition or the details of illustrated structure and the layout of parts in accompanying drawing below.The utility model can have other embodiments and implemented in every way or perform.Further embodiment of the present utility model can comprise any combination of the feature of one or more dependent claims, and such feature by venue or can be attached in any independent claims individually.
With reference to Fig. 1, it illustrates a mode of execution of tensioning mechanism of the present utility model.The first belt pulley 1 in figure and the second belt pulley 2 realize transmission by means of belt 3, and one of them of two belt pulleys is driving wheel, and another is follower.In order to realize the tensioning of belt and loosen and be provided with belt tensioning mechanism 4.The position that this belt tensioning mechanism can change Idle wheel is with tensioning or loosen one of mounting type that Idle wheel has been shown in belt 3, Fig. 1, is namely arranged on to rotate on pivotable tension pulley support and with tension pulley support and close to or away from belt.Those skilled in the art also can expect other Idle wheel manners except swinging, such as translation etc. under the restriction of track.
Fig. 2 shows an example of this tensioning mechanism, and the oil hydraulic cylinder particularly illustrated wherein and spring and the mounting structure of the two.As shown in Figure 2, Idle wheel is arranged on one end of this tension pulley support 60, and the other end of tension pulley support is connected with an oil hydraulic cylinder 40, this oil hydraulic cylinder can drive tension pulley support around tension pulley support pivotal axis 68 pivotable as power source, and then drives Idle wheel to swing.But art technology people also can expect two ends Idle wheel and tension pulley support pivotal axis being arranged on tension pulley support, and the position connecting fluid cylinder pressure between the two ends of tension pulley support.
In the utility model, this oil hydraulic cylinder 40 is preferably single-acting formula oil hydraulic cylinder.This oil hydraulic cylinder comprises cylinder body and the piston rod 44 along inboard wall of cylinder block movement.Cylinder body has the opening end and the closed end for being connected with a fixed mounting 50 that pass in and out for piston rod, and this closed end is also referred to as cylinder body end 42; Accordingly, piston rod has the one end for connecting tension pulley support be positioned at outside cylinder body, referred to herein as piston-rod end 45.As single-action hydraulic cylinder, it is connected with a hydraulic pipe line 41, and the hydraulic coupling provided can only along a direction piston rod, and specifically, as shown in Figure 2, hydraulic coupling can only piston rod 44 move right.
In order to make oil hydraulic cylinder 40 can activate tension pulley support 60, cylinder body end 42 is connected with fixed mounting 50 with one of both piston-rod ends 45 by the utility model, and is connected on tension pulley support 60 by another in the two.Specifically as shown in Figure 1, cylinder body end 45 is connected on fixed mounting 50, and piston-rod end 45 is connected on tension pulley support 60.This fixed mounting should have enough intensity to support this tensioning mechanism 4, and such as, when for combine-harvester, this fixed mounting 5 () is preferably arranged on fuselage ring.In order to ensure that oil hydraulic cylinder 40 its axis in telescopic process can freely rotate, as shown in Figure 2, this fixed mounting 50 is provided with the first pivot 52, the cylinder body end 42 of oil hydraulic cylinder is hinged on this first pivot; Accordingly, tension pulley support 60 is provided with the second pivot 62, piston-rod end 45 is hinged on this second pivot.
For single-action hydraulic cylinder, the actuation force that high hydraulic pressure can provide its piston rod to extend, but in order to ensure hydraulic pressure cancel after piston rod can retract, also needing to arrange to provide the device of restoring force.In the utility model, provide restoring force by spring 46.In order to ensure the axial direction of restoring force direction along oil hydraulic cylinder of spring, the utility model adopts mounting construction so, that is, the first pivot 52 arranges the first spring mount 54, and one end of spring is arranged on this first spring mount; This second pivot 52 is provided with the second spring mount 64, and the other end of spring is arranged on this second spring mount.First and/or second spring mount is preferably metal sheet, and is provided with multiple mounting hole.As shown in the figure, the first assembling set is provided with 3 the first spring mounting holes 56, one end of spring can engage one of them; Second spring mount is provided with 3 the second spring mounting holes 66, the other end of spring can engage one of them selectively.By selecting different spring mounting holes, the spring of different length can be suitable for, or can make it when its length is fixed to provide different restoring forces.
In the utility model, model utility people further contemplates the oil hydraulic cylinder being suitable for different length, for this reason preferred second pivot is arranged to the diverse location place that can be arranged on tension pulley support.Multiple second pivotal mounting hole can be set for this reason on tension pulley support, conveniently the second pivot can be arranged on selectively multiple second pivotal mounting hole one of them thus, adapt to the oil hydraulic cylinder of different length whereby.In addition, model utility people also find, when oil hydraulic cylinder breaks down or weares and teares in a certain stroke range, can overcome it by its length of adjustment with new trip.Although the structure in attached not shown above-mentioned multiple second pivotal mounting hole, those skilled in the art easily expect this structure.
Tension pulley support 60 also can be configured to by Hydraulic Cylinder linearly translation.For this reason, be preferably tension pulley support and one rectilinear bracket track is set.When tensioning mechanism is used for combine-harvester, preferably this bracket track is set on the fuselage ring of combine-harvester.Now, Idle wheel is arranged on one end of tension pulley support, and the second pivot is arranged on the other end of tension pulley support, and the middle part of this tension pulley support is moved along bracket track.The structure of this bracket track is also not shown in the accompanying drawings.
Although be disclosed above the exemplary embodiment combining principle of the present utility model, the utility model is being not limited to the disclosed embodiments.On the contrary, the application is intended to use rule of the present utility model to cover any change of the present utility model, purposes or amendment.And, the utility model intention contain depart from present disclosure, as fallen into this content within the scope of the known or usual practice in field belonging to the utility model.
Claims (10)
1., for a bel-drivenn tensioning mechanism, described tensioning mechanism comprises:
Mobilizable tension pulley support, described tension pulley support is provided with the Idle wheel that can apply tension force to belt;
Single-acting formula oil hydraulic cylinder, this oil hydraulic cylinder comprises cylinder body and piston rod, and described cylinder body has cylinder body end, and described piston rod has piston-rod end; Wherein,
One of them of described cylinder body end and described piston-rod end is connected on a fixed mounting, described cylinder body end and described piston-rod end wherein another is connected on described tension pulley support; And
Spring, one end of described spring is arranged on described fitting seat, and the other end is arranged on described tension pulley support, and this spring is in pulling force bias state all the time.
2. tensioning mechanism as claimed in claim 1, is characterized in that:
Described fixed mounting is provided with the first pivot, this first pivot is provided with the first spring mount;
One of them of described cylinder body end and described piston-rod end is hinged on described first pivot, and one end of described spring is arranged on described first spring mount.
3. tensioning mechanism as claimed in claim 2, is characterized in that:
Described first spring mount is provided with multiple first spring mounting hole, and one end of described spring can engage one of them of described multiple first spring mounting hole selectively.
4. the tensioning mechanism as described in one of claims 1 to 3, is characterized in that:
Described tension pulley support is provided with the second pivot, this second pivot is provided with the second spring mount;
Described cylinder body end and described piston-rod end wherein another is hinged on described second pivot, and the other end of described spring is arranged on described second spring mount.
5. tensioning mechanism as claimed in claim 4, is characterized in that:
Described second spring mount is provided with multiple second spring mounting hole, and the other end of described spring can engage one of them of described multiple second spring mounting hole selectively.
6. tensioning mechanism as claimed in claim 4, is characterized in that:
Described Idle wheel is arranged on one end of described tension pulley support, described second pivot is arranged on the other end of described tension pulley support, and this tension pulley support can around the tension pulley support pivot axis between described one end and the other end of this tension pulley support.
7. tensioning mechanism as claimed in claim 4, is characterized in that:
One end of described tension pulley support is provided with described Idle wheel;
The other end of described tension pulley support is arranged on a tension pulley support pivotal axis, and this tension pulley support can around described tension pulley support pivot axis;
Described second pivot is provided with between described one end and the other end of this tension pulley support.
8. tensioning mechanism as claimed in claim 4, is characterized in that:
Described Idle wheel is arranged on one end of described tension pulley support, and described second pivot is arranged on the other end of described tension pulley support, and the bracket track of this tension pulley support shape along a straight line moves.
9. tensioning mechanism as claimed in claim 4, is characterized in that:
Described tension pulley support has multiple second pivotal mounting hole, and described second pivot can be arranged in one of them of described multiple second pivotal mounting hole selectively.
10. a combine-harvester, this combine-harvester has:
First transmission shaft, described first transmission shaft with the first belt pulley,
Second driving shaft, described second driving shaft with the second belt pulley,
Be wrapped in the belt on described first belt pulley and the second belt pulley; And
Tensioning mechanism as described in one of the claims, the Idle wheel of this tensioning mechanism can apply described belt or cancel tension force.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520114705.6U CN204805451U (en) | 2015-02-17 | 2015-02-17 | Straining device and have this straining device's combine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520114705.6U CN204805451U (en) | 2015-02-17 | 2015-02-17 | Straining device and have this straining device's combine |
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| Publication Number | Publication Date |
|---|---|
| CN204805451U true CN204805451U (en) | 2015-11-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520114705.6U Active CN204805451U (en) | 2015-02-17 | 2015-02-17 | Straining device and have this straining device's combine |
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| CN (1) | CN204805451U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110663348A (en) * | 2018-07-02 | 2020-01-10 | 凯斯纽荷兰(中国)管理有限公司 | System for adjusting conveyor belt tension in an agricultural harvester |
-
2015
- 2015-02-17 CN CN201520114705.6U patent/CN204805451U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110663348A (en) * | 2018-07-02 | 2020-01-10 | 凯斯纽荷兰(中国)管理有限公司 | System for adjusting conveyor belt tension in an agricultural harvester |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |