CN107044516A - Harvester transmission belt tensioner - Google Patents

Harvester transmission belt tensioner Download PDF

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Publication number
CN107044516A
CN107044516A CN201710126475.9A CN201710126475A CN107044516A CN 107044516 A CN107044516 A CN 107044516A CN 201710126475 A CN201710126475 A CN 201710126475A CN 107044516 A CN107044516 A CN 107044516A
Authority
CN
China
Prior art keywords
screw rod
adjusting screw
stage clip
tensioning mechanism
tensioning wheel
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.)
Pending
Application number
CN201710126475.9A
Other languages
Chinese (zh)
Inventor
张涛
李跳跳
于长庆
王国鑫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
World Heavy Industry China Co Ltd
Original Assignee
World Heavy Industry China Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by World Heavy Industry China Co Ltd filed Critical World Heavy Industry China Co Ltd
Priority to CN201710126475.9A priority Critical patent/CN107044516A/en
Publication of CN107044516A publication Critical patent/CN107044516A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01DHARVESTING; MOWING
    • A01D69/00Driving mechanisms or parts thereof for harvesters or mowers
    • A01D69/06Gearings
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16HGEARING
    • F16H7/00Gearings for conveying rotary motion by endless flexible members
    • F16H7/08Means for varying tension of belts, ropes, or chains
    • F16H2007/0802Actuators for final output members
    • F16H2007/0806Compression coil springs

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

The invention discloses a kind of harvester transmission belt tensioner, including tension pulley support, tensioning wheel and elastic tensioning mechanism, described tension pulley support one end is hinged by front support axle and frame seat, and the other end is hinged with tensioning wheel by rear support axle.Support shaft two ends are supported on the upper end of elastic tensioning mechanism, and the lower end of elastic tensioning mechanism is connected with cantilever beam outer end, and the inner is vertical with frame side to be fixedly connected.Elastic tensioning mechanism includes bearing, stage clip, adjusting screw rod, spheric seat and two locking nuts, and the spherical upper surface of the spheric seat of adjusting screw rod lower end is resisted against on the downside of cantilever beam, and locks spheric seat by two locking nuts.Compression spring sleeve is in the upper end of adjusting screw rod, and stage clip two ends are born against on the inside of the plectane on adjusting screw rod top and on the medial surface of straight bottom.Compact conformation of the present invention, easy to maintenance, reliability is high, extend service life, and dismounting tensioning wheel is very convenient.

Description

Harvester transmission belt tensioner
Technical field
It is especially a kind of for harvester engine and the mesothelium of gearbox the present invention relates to a kind of transmission device of harvester The tensioning apparatus of V belt translation, belongs to harvester technical field.
Background technology
With developing rapidly for domestic Agricultural Mechanization Degree, the application of crawler type or wheel type combine harvester is more and more wider It is general.User to the performance of harvester, it is convenient, safeguard in terms of requirement also more and more higher.In existing harvester engine with The drive connection of gearbox is typically driven using several V-type driving belts, and driving belt is used from tensioning mode, passes through single arm type In-migration is tensioned several V-type driving belts under the tensioning wheel of extension spring strainer, and this main deficiency of strainer is working condition Unstable, driving belt bounce is big, extension spring fracture back single-arm formula extension spring strainer is to fail, it is necessary to shutdown maintenance, serious shadow Ring the operating efficiency of harvester.
The content of the invention
It is an object of the invention to provide a kind of harvester driving belt tensioning simple in construction, durable in use, easy to maintenance Device.
The present invention is achieved by the following technical programs:
A kind of harvester transmission belt tensioner, including tension pulley support, tensioning wheel and elastic tensioning mechanism, described Bearing up pulley support one end is hinged by front support axle and frame seat, and the tension pulley support other end is cut with scissors with tensioning wheel by rear support axle Connect, in the middle part of the tensioning wheel by two bearings on rear support axle, the rear support axle two ends are supported on elastic tensioning The upper end of mechanism, the lower end of the elastic tensioning mechanism is connected with cantilever beam outer end, and cantilever beam is inner vertical with frame side solid Fixed connection;The elastic tensioning mechanism includes bearing, stage clip, adjusting screw rod, spheric seat and two locking nuts, and the bearing is in Flat U-shaped, including straight bottom and bend upward straight-arm respectively from straight bottom two ends, adjusting screw rod lower end sequentially passes through branch The straight bottom of seat and cantilever beam outer end, spheric seat is enclosed on adjusting screw rod lower end, and the spherical upper surface of spheric seat is resisted against outstanding On the downside of arm beam, and spheric seat is locked by two locking nuts for being screwed in adjusting screw rod lower end;Compression spring sleeve is in regulation spiral shell In the upper end of bar, stage clip two ends are born against on the inside of the plectane on adjusting screw rod top and on the medial surface of straight bottom.
The purpose of the present invention can also further be realized by following technical measures.
Further, the elastic tensioning mechanism also includes nylon spacer, and the nylon spacer is supported on adjusting screw rod Between radial outside and the radially inner side of stage clip.Nylon spacer lower end is resisted against radially outward from stage clip bracing ring, stage clip lower end On stage clip bracing ring, nylon spacer lower end extends axially downward out locating dowel, and the locating dowel lower end puts in determining for straight bottom In the hole of position.
Further, the elastic tensioning mechanism also includes flute profile backing plate, and the width of the flute profile backing plate is more than bearing Width, the downside of flute profile backing plate is resisted against on the upper side of straight bottom.
Further, supporting plate lower end is fixed on the outside on straight-arm top, and supporting plate is quick provided with tensioning wheel support shaft Assemble mechanism, includes the groove of upper supported hole, lower pilot hole and the upper supported hole of connection and lower pilot hole, the upper supported hole Aperture is matched with tensioning wheel support shaft neck, and the diameter of the lower pilot hole is more than the external diameter that tensioning wheel supports shaft end cap, described The width of groove is identical with support bore dia;After the completion of assembling, the axle journal at tensioning wheel support shaft two ends is resisted against supported hole In upside.
Compact conformation of the present invention, easy to maintenance, reliability are high, and the present invention is existing with the elastic tensioning mechanism substitution of built-in stage clip Some single arm type extension spring strainers, replace single straight-arm of single arm type extension spring strainer with the bearing of flat U-shaped, improve branch Seat intensity, and stage clip is hardly damaged, solves that belt bounce is big, inoperable technical problem after spring breakage.Even if stage clip There is the damage of fatigability, as long as tightening locking nut, continue to pull down bearing, so that when the present invention may continue to one section of work Between after change stage clip again, improve the present invention operating efficiency and stability.Between stage clip and adjusting screw rod equipped with nylon every Set, can avoid the rigid friction between stage clip and adjusting screw rod from damaging, the service life of extension stage clip and adjusting screw rod.First When secondary installation and follow-up replacing driving belt, it is only necessary to unclamp the straight-arm that bearing is pushed out after locking nut so that tensioning wheel The support shaft two ends diameter of axle falls into lower pilot hole, then pushes the supporting plate of bearing upper end both sides laterally respectively open, with regard to energy Take out rear support axle and tensioning wheel thereon so that the dismounting of tensioning wheel becomes very convenient.
Advantages of the present invention and feature, will be illustrated and explained by the non-limitative illustration of preferred embodiment below, These embodiments, are only provided as an example referring to the drawings.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention;
Fig. 2 is Fig. 1 A-A sectional stretch-out views;
Fig. 3 is Fig. 2 I enlarged drawing;
Fig. 4 is Fig. 1 II enlarged drawing.
Embodiment
The invention will be further described with reference to the accompanying drawings and examples.
As depicted in figs. 1 and 2, the present invention includes tension pulley support 1, tensioning wheel 2 and elastic tensioning mechanism 3, tensioning wheel branch The one end of frame 1 is hinged by front support axle 11 with frame seat 41, and the other end of tension pulley support 1 passes through rear support axle 12 with tensioning wheel 2 It is hinged, tensioning wheel 2 is formed using two wheel bodys of punching press half by fastener docking, after its middle part is supported on by two bearings 21 In support shaft 12, the two ends of rear support axle 12 are supported on the upper end of elastic tensioning mechanism 3, the lower end of the elastic tensioning mechanism 3 with The outer end of cantilever beam 42 is connected, and cantilever beam 42 is inner to be connected with frame side vertical welding.
Elastic tensioning mechanism 3 includes bearing 31, stage clip 32, adjusting screw rod 33, nylon spacer 34, flute profile backing plate 35, spherical Seat 36 and two locking nuts 37, bearing 31 is in flat U-shaped, is formed using Flat steel bending, including straight bottom 311 and from straight Bottom two ends bend upward straight-arm 312 respectively, and the top of adjusting screw rod 33 is welded with plectane 331, and the lower end of adjusting screw rod 33 is worn successively The straight bottom 311 crossed in bearing 31 and the outer end of cantilever beam 42, are enclosed on the spherical upper end of the spheric seat 34 of the lower end of adjusting screw rod 33 Face is resisted against on the downside of cantilever beam 42, and locks spheric seat by two locking nuts 35 for being screwed in the lower end of adjusting screw rod 33 34.Stage clip 32 is enclosed in the upper end of adjusting screw rod 33, and the two ends of stage clip 32 are born against in the inner side of plectane 331 and straight bottom 311 Medial surface on.Nylon spacer 34 is supported between the radially inner side of the radial outside of adjusting screw rod 33 and stage clip 32, nylon every Set 34 can avoid the rigid friction between stage clip 32 and adjusting screw rod 33 from damaging, and extend making for stage clip 32 and adjusting screw rod 33 Use the life-span.
As shown in figure 3, the lower end of nylon spacer 34 is radially outward from stage clip bracing ring 341, the lower end of stage clip 32 is resisted against stage clip On bracing ring 341, prevent nylon spacer 34 from moving up and down.Locating dowel 342, institute are extended axially downward out in the lower end of nylon spacer 34 State the lower end of locating dowel 342 to put in the positioning hole of straight bottom 311, positioning action is played to nylon spacer 34.
The width of flute profile backing plate 35 is more than the width of bearing, and the downside of flute profile backing plate 35 is resisted against straight bottom 311 On upper side, flute profile backing plate 35 can improve the rigidity of the straight bottom 311 of bearing 31, it is to avoid bearing 31 its in harvester operation When deform.There is certain vibration in harvester operation so that spheric seat 36 shifts can rotate certain angle in frame Degree, is not in catching phenomenon, it is to avoid damage bearing 31 by pressure.
As shown in figure 4, being welded with supporting plate 313 on the outside of the top of straight-arm 312 of bearing 31, supporting plate 313 is provided with tensioning Take turns support shaft rapid assembly device 5, including upper supported hole 51, lower pilot hole 52 and the upper supported hole 51 of connection and lower pilot hole 52 Groove 53, the aperture of upper supported hole 51 matched with the axle journal of rear support axle 12, and the diameter of the lower pilot hole 52 is propped up after being more than The external diameter of the end cap 121 of axle 12 is supportted, the width of groove is identical with support bore dia.After the completion of assembling, because stage clip 32 is to straight-arm 312 drop-down effect so that the axle journal 121 at the two ends of rear support axle 12 is resisted against in the upside of supported hole 51 all the time, meanwhile, quilt The driving belt of tensioning also makes the axle journal 121 at the two ends of rear support axle 12 be resisted against support all the time the reaction force of tensioning wheel In the upside in hole 51, it is ensured that the normal work of tensioning wheel 2.
In addition to the implementation, the present invention can also have other embodiment, all use equivalent substitution or equivalent transformation shape Into technical scheme, all fall within the protection domain of application claims.

Claims (5)

1. a kind of harvester transmission belt tensioner, including tension pulley support, tensioning wheel and elastic tensioning mechanism, the tensioning Wheel support one end is hinged by front support axle and frame seat, and the tension pulley support other end is hinged with tensioning wheel by rear support axle, In the middle part of the tensioning wheel by two bearings on rear support axle, the rear support axle two ends are supported on elastic tensioning mechanism Upper end, the lower end of the elastic tensioning mechanism is connected with cantilever beam outer end, the inner fixation company vertical with frame side of cantilever beam Connect;Characterized in that, the elastic tensioning mechanism includes bearing, stage clip, adjusting screw rod, spheric seat and two locking nuts, institute Bearing is stated in flat U-shaped, including straight bottom and bends upward straight-arm respectively from straight bottom two ends, adjusting screw rod lower end according to Secondary straight bottom and cantilever beam outer end through bearing, spheric seat is enclosed on adjusting screw rod lower end, the spherical upper surface of spheric seat It is resisted against on the downside of cantilever beam, and spheric seat is locked by two locking nuts for being screwed in adjusting screw rod lower end;Compression spring sleeve In the upper end of adjusting screw rod, stage clip two ends bear against the medial surface with straight bottom on the inside of the plectane on adjusting screw rod top On.
2. harvester transmission belt tensioner as claimed in claim 1, it is characterised in that:The elastic tensioning mechanism is also wrapped Nylon spacer is included, the nylon spacer is supported between the radial outside of adjusting screw rod and the radially inner side of stage clip.
3. harvester transmission belt tensioner as claimed in claim 2, it is characterised in that:Nylon spacer lower end is radially extended Go out stage clip bracing ring, stage clip lower end is resisted against on stage clip bracing ring, imperial spacer lower end extends axially downward out locating dowel, described fixed Position post lower end is put in the positioning hole of straight bottom.
4. harvester transmission belt tensioner as claimed in claim 1, it is characterised in that:The elastic tensioning mechanism is also wrapped Flute profile backing plate is included, the width of the flute profile backing plate is more than the width of bearing, and the downside of flute profile backing plate is resisted against straight bottom On upper side.
5. harvester transmission belt tensioner as claimed in claim 1, it is characterised in that:Supporting plate lower end is fixed on straight-arm The outside on top, supporting plate is provided with tensioning wheel support shaft rapid assembly device, including upper supported hole, lower pilot hole and connection The groove of upper supported hole and lower pilot hole, the aperture of the upper supported hole is matched with the axle journal of rear support axle, the lower pilot hole Diameter be more than the external diameter of rear support shaft end cap, the width of the groove is identical with supporting bore dia;After the completion of assembling, rear support The axle journal at axle two ends is resisted against in the upside of supported hole.
CN201710126475.9A 2017-03-06 2017-03-06 Harvester transmission belt tensioner Pending CN107044516A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710126475.9A CN107044516A (en) 2017-03-06 2017-03-06 Harvester transmission belt tensioner

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710126475.9A CN107044516A (en) 2017-03-06 2017-03-06 Harvester transmission belt tensioner

Publications (1)

Publication Number Publication Date
CN107044516A true CN107044516A (en) 2017-08-15

Family

ID=59544014

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710126475.9A Pending CN107044516A (en) 2017-03-06 2017-03-06 Harvester transmission belt tensioner

Country Status (1)

Country Link
CN (1) CN107044516A (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1205368A (en) * 1968-07-02 1970-09-16 Peugeot Improvements in or relating to a belt tension device
CN203226761U (en) * 2013-03-15 2013-10-09 周裕佳 Rapid disassembly and assembly mechanism for toilet bowl cover plate
CN105179620A (en) * 2015-10-22 2015-12-23 中联重机股份有限公司 Double tension device used for driving belt and corresponding belt driving system
CN205937678U (en) * 2016-08-11 2017-02-08 雷沃重工股份有限公司 Belt tensioner arrangement structure
CN205956324U (en) * 2016-08-01 2017-02-15 辽宁石油机械制造有限公司 Simple and easy belt tensioning mechanism
CN206972842U (en) * 2017-03-06 2018-02-06 沃得重工(中国)有限公司 Harvester transmission belt tensioner

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1205368A (en) * 1968-07-02 1970-09-16 Peugeot Improvements in or relating to a belt tension device
CN203226761U (en) * 2013-03-15 2013-10-09 周裕佳 Rapid disassembly and assembly mechanism for toilet bowl cover plate
CN105179620A (en) * 2015-10-22 2015-12-23 中联重机股份有限公司 Double tension device used for driving belt and corresponding belt driving system
CN205956324U (en) * 2016-08-01 2017-02-15 辽宁石油机械制造有限公司 Simple and easy belt tensioning mechanism
CN205937678U (en) * 2016-08-11 2017-02-08 雷沃重工股份有限公司 Belt tensioner arrangement structure
CN206972842U (en) * 2017-03-06 2018-02-06 沃得重工(中国)有限公司 Harvester transmission belt tensioner

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Application publication date: 20170815