CN210391360U

CN210391360U - Crawler walking wheel train and chassis assembly of tractor

Info

Publication number: CN210391360U
Application number: CN201920576203.3U
Authority: CN
Inventors: 毛智琳; 彭铭广; 朱森荣
Original assignee: Xingguang Agricultural Machine Co Ltd
Current assignee: Xingguang Agricultural Machine Co Ltd
Priority date: 2019-04-25
Filing date: 2019-04-25
Publication date: 2020-04-24
Anticipated expiration: 2029-04-25

Abstract

The utility model relates to a tractor technical field specifically is a crawler travel train and chassis assembly of tractor, including controlling two train units that relative set up, take-up pulley, leading wheel, the position that the train unit all set up around including the drive wheel and the coiling of leading wheel front top are in track on take-up pulley, leading wheel and the drive wheel, first leading wheel, balanced balance wheel group and the second leading wheel has set gradually around still between take-up pulley and the leading wheel, the track is still coiled on the downside position of first leading wheel, balanced balance wheel group and second leading wheel, two are to the balanced balance wheel of fluctuation around having on the balanced balance wheel group, the height that highly all is higher than first leading wheel of take-up pulley and leading wheel is higher than the height of second leading wheel for the tractor damping effect is better.

Description

Crawler walking wheel train and chassis assembly of tractor

Technical Field

The utility model relates to a tractor technical field specifically is a crawler travel wheel train and chassis assembly of tractor.

Background

Among the prior art, crawler tractor's walking train can experience many rugged fields of height unevenness, will produce many whole tractor's vibration and the swing of train structure certainly, warp etc., the crawler tractor's that discloses 107662660A is published like this, including drive wheel and follow driving wheel, drive wheel and the outside cover from the driving wheel are equipped with the track, drive wheel and follow driving wheel between evenly be equipped with a plurality of thrust wheel, two baffle fixed connection are passed through respectively with the both sides from the driving wheel to the drive wheel, the both ends symmetry of baffle one side is equipped with a plurality of to the bolt hole, the train structure that it provided, just can not play very good damping effect and keep the effect that the train structure is difficult to spoil when rugged field is long-term.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a make better crawler travel train of tractor damping effect.

The above technical purpose of the present invention can be achieved by the following technical solutions: the utility model provides a crawler travel wheel train of tractor, includes about two train units that relative set up, the train unit all includes take-up pulley, leading wheel, the drive wheel that sets up around, is located the leading wheel front upper place and the winding are in take-up pulley, leading wheel and the track on the drive wheel, first supporting wheel, balanced balance wheel group and second supporting wheel have set gradually around still between take-up pulley and the leading wheel, the track is still the winding is in on the downside position of first supporting wheel, balanced balance wheel group and second supporting wheel, two pairs of balanced balance wheels that can fluctuate around having on the balanced balance wheel group, the height of take-up pulley and leading wheel all is higher than the height of first supporting wheel and all is higher than the height of second supporting wheel.

Preferably, the height difference between the first thrust wheel and the second thrust wheel is less than 10 mm.

Preferably, the tensioning wheel is 10-30mm higher than the first thrust wheel, the tensioning wheel is 10-30mm higher than the second thrust wheel, the guide wheel is 10-30mm higher than the first thrust wheel, and the guide wheel is 10-30mm higher than the second thrust wheel.

As right the utility model discloses a preferred, first thrust wheel with the position of second thrust wheel is equallyd divide and is do not provided with first direction iron and second direction iron.

Preferably, the front end portion and the rear end portion of the first guide iron are both curved warped sections, and the front end portion and the rear end portion of the second guide iron are also both curved warped sections.

Preferably, the first guide iron has a warp height closer to the front end portion lower than a warp height closer to the rear end portion, and the second guide iron has a warp height closer to the front end portion higher than a warp height closer to the rear end portion.

Preferably, the lowest position of the first guide iron is lower than the lowest position of the first supporting wheel by 2-5mm, and the lowest position of the second guide iron is lower than the lowest position of the second supporting wheel by 2-5 mm.

Preferably, a balance wheel guide iron is arranged between the front and rear pairs of balance wheels.

Preferably, the balance wheel guide iron has a high middle section and a low front-rear section adjacent to the balance wheel.

Has the advantages that: the structure mobility and the suitability of whole train are better, and safe and reliable more can adapt to more abominable environment, and life obtains the extension, and the damping effect greatly promotes.

The tractor chassis assembly comprises a chassis frame, wherein any one of the crawler traveling wheel trains of the tractor is installed on the chassis frame, a gearbox, an engine and two vibration absorbers are further installed on the chassis frame, and the two vibration absorbers are installed between the left lower side of the engine and the upper left long beam of the chassis frame and between the left lower side of the engine and the upper right long beam of the chassis frame respectively.

A chassis frame of a crawler tractor comprises a lower frame and an upper frame fixed above the lower frame, wherein a left surrounding outer sleeve and a right surrounding outer sleeve which are respectively sleeved with driving wheel shells on the left side and the right side of a gearbox are arranged above the rear side of the lower frame, and a rotating space for the driving wheel shells of the gearbox to rotate is arranged in the surrounding outer sleeve.

As right the utility model discloses a preferred, it is the circle staple bolt to surround the overcoat.

As right the utility model discloses a preferred, the last frame is including controlling the relative last left long beam and the last right long beam that sets up, the lower frame is including controlling the relative lower left long beam and the lower right long beam that sets up.

As right the utility model discloses a preferred, go up the left and right sides between long roof beam and the last right long roof beam and be less than down the left and right sides between long roof beam and the lower right long roof beam and the spacing distance between.

As right the utility model discloses a preferred, go up left long beam with it is fixed through the installation of left oblique support arm down between the long beam of a left side, go up right long beam with it is fixed through the installation of right oblique support arm down between the long beam of the right side.

As right the utility model discloses a preferred, the both ends tip of left oblique support arm and the both ends tip of right oblique support arm all offer with long roof beam erection joint's right angle interface.

As to the utility model discloses a preferred, go up left long beam and go up the right long beam and control the installation and be fixed with the enhancement crosspiece that the left right direction extends.

As right the utility model discloses a preferred, go up the long roof beam in a left side and go up the part that the long roof beam in a right side leaned on the front end and all have the upwarp section to the place ahead, upwarp the upper and lower both sides of section and form the upwarp plane before upwarp plane and the downside respectively and upwarp the plane.

As right the utility model discloses a preferred, the planar perk degree of stick up before the downside is greater than the planar perk degree of stick up before the upside

A caterpillar tractor chassis assembly comprises any one of the caterpillar tractor chassis frame, a gearbox, an engine, two vibration absorbers and a caterpillar walking wheel system, wherein the gearbox, the engine, the vibration absorbers and the caterpillar walking wheel system are arranged on the chassis frame, and the two vibration absorbers are respectively arranged between the left lower side of the engine and the upper left long beam of the chassis frame and between the left lower side of the engine and the upper right long beam of the chassis frame.

The tractor vibration damper comprises an engine fixing seat and a vibration damping seat, wherein the engine fixing seat is used for being installed with a tractor engine, the vibration damping seat is used for being installed with a tractor chassis frame, and an elastic vibration damping body is clamped between the engine fixing seat and the vibration damping seat. Through two engine fixing bases and damping seat design for elastic damping physical stamina can exert its effect of damping better, the bumper shock absorber of this application preferably adopts more than two, sets up the position that leans on the bottom in the left and right sides of engine respectively, and the extending direction of the top surface to the bottom surface of elastic damping body is the slope, and the central part that preferably faces the engine, not only can have the fine function that has certain locate effect to the engine, can also play very good damping effect.

Preferably, the elastic damping body is a damping rubber or a spring.

As right the utility model discloses a preferred, the engine fixing base including be used for with tractor engine fixed connection the side-mounting fixed plate and with side-mounting fixed plate fixed connection live and the bottom surface position is used for supplying the top surface position of the elastic damping body supports the top bearing board that lives, the damping seat including be used for with tractor chassis frame fixed connection the end installation fixed plate and with end installation fixed plate fixed connection live and the top surface position is used for supplying the bottom surface position of the elastic damping body supports the end bearing board that lives. The elastic vibration damping body can better play a role, the equipment is better protected, and the safety can be improved.

As right the utility model discloses a preferred, both sides are fixed with respectively right around the side-mounting fixed plate the front and back of the elastic damping body carries out spacing pterygoid lamina of spacing front side and rear side spacing pterygoid lamina, top bearing plate, the spacing pterygoid lamina of front side, the spacing pterygoid lamina of rear side and end bearing plate surround and form the confession the damping interval that the elastic damping body was put into. The elastic vibration damping body has a better vibration damping working range, can work well and can also play a certain protection role.

As right the utility model discloses a preferred, front side spacing pterygoid lamina includes the front side main pterygoid lamina that the face set up towards the fore-and-aft direction, rear side spacing pterygoid lamina includes the face towards the rear side main pterygoid lamina that the fore-and-aft direction set up, the surface at the base position of front side main pterygoid lamina with at least partly set up relatively at base loading board to top bearing plate direction in the top surface of base loading board, the surface at the base position of rear side main pterygoid lamina also with at least partly set up relatively at base loading board to top bearing plate direction in the top surface of base loading board. For preventing that the fatigue of the elastic damping body and ageing damage arouse safe quality problem, because this design in case the elastic damping body strain became invalid, both sides flap just can effectively support on the basement board, prevent that the engine from drooping to arouse the incident.

As right the utility model discloses a preferred, the surface ratio at the base position of front side main wing board the base loading board with that part top surface that the surface at the base position of front side main wing board set up relatively at base loading board to top bearing plate direction is closer to the top bearing plate, the surface ratio at the base position of rear side main wing board the base loading board with that part top surface that the surface at the base position of rear side main wing board set up relatively at base loading board to top bearing plate direction is closer to the top bearing plate.

As right the utility model discloses a preferred, the surface at the base position of front side main pterygoid lamina with the surface at the base position of front side main pterygoid lamina has the clearance between that part top surface that base loading board to top bearing plate orientation set up relatively, the surface at the base position of rear side main pterygoid lamina with the surface at the base position of rear side main pterygoid lamina also has the clearance between that part top surface that base loading board to top bearing plate orientation set up relatively.

As right the utility model discloses a preferred, the surface department an organic whole at the base position of front side main wing board is connected with the front side location protruding piece that is used for advancing the location to the base loading board orientation, the surface department an organic whole at the base position of rear side main wing board is connected with the rear side location protruding piece that is used for advancing the location to the base loading board orientation, set up on the base loading board and supply the leading-in front side guiding hole of front side location protruding piece and supply the leading-in back side guiding hole of rear side location protruding piece. When the elastic vibration damping body strain fails, the top bearing plate and the bottom bearing plate can be compressed, the positioning convex blocks are guided into the guide holes, the positioning effect is achieved, the engine is fixed, the top bearing plate and the engine cannot have obvious displacement phenomenon at the bottom bearing plate, and the position of the engine in failure can be well stabilized.

As right the utility model discloses a preferred, be fixed with on the bottom surface of end installation fixed plate and deviate from the support extension plate that end installation fixed plate direction extends, end installation fixed plate with form the contained angle portion that can erect in tractor chassis frame between the support extension plate.

A tractor vibration damping system comprises any one of the tractor vibration dampers and a tractor chassis frame for mounting the vibration dampers.

Has the advantages that: the shock absorber has better stability, the shock absorption effect is obviously improved, particularly, the shock absorber obviously reinforces the absorption of the vibration generated by the engine and the limitation of the position of the engine, can well protect parts with more vibration influences such as the engine and the like under the condition of better providing the traveling capability for the tractor, and has more guarantee on the safety and the use comfort of a driver; the quality of the whole damping system is higher.

Drawings

Fig. 1 is a schematic perspective view of an overall wheel train in embodiment 1 of the present invention;

FIG. 2 is a front view of FIG. 1;

fig. 3 is a schematic perspective view of a balanced pendulum wheel set in embodiment 1 of the present invention;

FIG. 4 is a perspective view of FIG. 3 from another perspective;

fig. 5 is a schematic perspective view of a guide iron engaged with a thrust wheel in embodiment 1 of the present invention;

fig. 6 is a schematic perspective view of embodiment 2 of the present invention;

fig. 7 is a schematic perspective view of embodiment 3 of the present invention;

FIG. 8 is a perspective view of the top view of FIG. 7;

fig. 9 is a schematic perspective view of the left and right inclined support arms in embodiment 3 of the present invention;

fig. 10 is a schematic perspective view of embodiment 4 of the present invention;

fig. 11 is a schematic perspective view of embodiment 5 of the present invention;

fig. 12 is a schematic perspective view of a tractor according to embodiment 5 of the present invention;

FIG. 13 is an enlarged view taken at I in FIG. 12;

fig. 14 is a schematic structural view of an engine fixing seat in embodiment 5 of the present invention;

FIG. 15 is a perspective view of the lower view of FIG. 14;

FIG. 16 is a perspective view of the damping mount;

fig. 17 is a schematic perspective view of embodiment 6 of the present invention.

In the figure: 1. an engine fixing seat, 2, an elastic vibration damping body, 3, a vibration damping seat, 11, a side mounting fixing plate, 12, a top bearing plate, 31, a bottom mounting fixing plate, 32, a bottom bearing plate, 21, a front side limit wing plate, 22, a rear side limit wing plate, 200, a vibration damping section, 211, a front side main wing plate, 221, a rear side main wing plate, 201, a front side positioning protrusion block, 202, a rear side positioning protrusion block, 2001, a front side guide hole, 2002, a rear side guide hole, 300, a support extension plate, 301, an included angle part, 4001, an extension mounting plate, 4002, a side mounting hole, 4003, an engine main mounting hole, 4004, a front longitudinal mounting plate, 4005, a rear longitudinal mounting plate, 4006, a vibration damping glue mounting hole, 4007, a stud, 71, a lower frame, 72, an upper frame, a 73, a surrounding jacket, 730, a rotating space, 701, an upper left long beam, 702, an upper right long beam, 704, a lower left long beam, a lower right beam, 703, 741. the device comprises a left inclined supporting arm, 742 and a right inclined supporting arm, 700, a right-angle interface, 75, a reinforcing crosspiece, 7000, an upwarp section, 7001, an upper front upwarp plane, 7002, a lower front upwarp plane, 400, a gearbox, 401, an engine, 402, a shock absorber, 403, a crawler traveling gear train, 81, a tensioning wheel, 82, a guide wheel, 83, a driving wheel, 84, a crawler, 851, a first balance wheel, 850, a balance swinging wheel group, 852, a second balance wheel, 8500, a balance swinging wheel, 861, first guide iron, 862, second guide iron, 855, balance swinging wheel guide iron, 444, a vibration sensor, 333, a nut hole, 555, a balance plate, 666 and a triangular support.

Detailed Description

The following specific embodiments are merely illustrative of the present invention, and are not intended to limit the present invention, and those skilled in the art can make modifications of the present embodiments without inventive contribution as required after reading the present specification, but all the embodiments are protected by patent laws and protection within the scope of the present invention.

Embodiment 1, as shown in fig. 1, 2, 3, 4, and 5, a crawler traveling gear train of a tractor includes two gear train units disposed opposite to each other in the left and right direction, the wheel train units respectively comprise a tension wheel 81, a guide wheel 82, a driving wheel 83 positioned in front of and above the guide wheel 82 and a crawler 84 wound on the tension wheel 81, the guide wheel 82 and the driving wheel 83, a first supporting wheel 851, a balance swinging wheel group 850 and a second supporting wheel 852 are further arranged between the tension wheel 81 and the guide wheel 82 in sequence, the caterpillar 84 is wound around the lower portions of the first and

second pulleys

851 and 852, the balance wheel set 850 is provided with a front balance wheel 8500 and a rear balance wheel 8500 which can float up and down, the height of the tensioning wheel 81 and the guiding wheel 82 is higher than that of the first supporting wheel 851 and higher than that of the second supporting wheel 852. The balance swing wheel group 850 is preferably arranged on a long beam at the lower side of a chassis frame of the tractor, the balance swing wheel group 850 is provided with a balance plate 555 extending forwards and backwards, the front balance swing wheel and the rear balance swing wheel 8500 are arranged at the front side and the rear side of the balance plate 555 through rotating shafts, the balance plate 555 is directly arranged on the long beam at the same side of the tractor through a shaft, and therefore the balance swing wheel can swing upwards and downwards like a seesaw and can run by matching with a crawler to use different road sections; the guide wheels 82 on the same side can be arranged on the long beam on the same side of the tractor, for example, one end of the wheel shaft of the guide wheel is fixed on the long beam on the same side by a bolt, the other end of the wheel shaft of the guide wheel is fixed by a supporting plate, and the supporting plate can also be fixed on the long beam on the same side; the tension wheel 81 on the same side can also be arranged on the long beam on the same side of the tractor, and in general, an existing adjustable tension device, such as a long screw bolt, a telescopic rod or an air rod, which can adjust the front and back length and can be locked and loosened, needs to be arranged on the long beam, the tension wheel 81 is arranged on the tension device to adjust the tightness of the crawler belt, and the adjustment range is preferably 0-90 mm; the thrust wheel can be directly arranged on the long beam through the rotating shaft; the driving wheel 83 should be mounted on the drive shaft of the gearbox above.

The height difference between the first supporting wheel 851 and the second supporting wheel 852 is less than 10 mm.

The height of the tensioning wheel 81 is 10-30mm higher than that of the first supporting wheel 851, the height of the tensioning wheel 81 is 10-30mm higher than that of the second supporting wheel 852, the height of the guide wheel 82 is 10-30mm higher than that of the first supporting wheel 851, and the height of the guide wheel 82 is 10-30mm higher than that of the second supporting wheel 852.

The positions of the first supporting wheel 851 and the second supporting wheel 852 are respectively provided with a first guide iron 861 and a second guide iron 862. The first guide iron 861 and the second guide iron 862 on the same side can be mounted on the long beam on the same side of the tractor, and both guide irons should be arranged in the lower area of the upper and lower corresponding track wheels to limit the position where the track is raised and sunk in the position, and generally cannot be raised above the center height of the track wheels. Simultaneously also be for increasing the service reliability and the life-span of leading wheel and take-up pulley, not let the track derail simultaneously.

The front end part and the rear end part of the first guide iron 861 are both arc-shaped warping sections, and the front end part and the rear end part of the second guide iron 862 are also both arc-shaped warping sections.

The warp height of the front end portion of the first guide iron 861 is lower than the warp height of the rear end portion, and the warp height of the front end portion of the second guide iron 862 is higher than the warp height of the rear end portion.

The lowest position of the first guide iron 861 is lower than the lowest position of the first supporting wheel 851 by 2-5mm, and the lowest position of the second guide iron 862 is lower than the lowest position of the second supporting wheel 852 by 2-5 mm.

A balance wheel guide iron 855 is arranged between the front and back pairs of balance wheels 8500. The balance wheel guide 855 may be attached to the long beam or may be attached to a portion of the balance wheel set 850, which is located below the balance plate 555. The design can keep the service life of the balance wheel and prevent the caterpillar track from derailing, the guide iron, the caterpillar track and the balance wheel act together to control the swing amplitude of the balance wheel, the balance wheel does not swing greatly to influence the service life of the caterpillar track, and meanwhile, the whole wheel train structure can well play a role in vibration reduction.

The balance wheel guide iron 855 is high at the middle section and low at the front and back adjacent to the balance wheel section to better fit the track to travel.

The front and rear rollers and the balance wheel should preferably be kept in the same horizontal position as much as possible in the case of horizontal start.

Embodiment 2, as shown in fig. 6, a tractor chassis assembly, the chassis frame, the crawler running gear train of the tractor of embodiment 1 is installed on the chassis frame, the gearbox 400, the engine 401 and the damper 402 are also installed on the chassis frame, the damper 402 has two parts and is respectively installed between the left lower side of the engine 401 and the upper left long beam 701 of the chassis frame and between the left lower side of the engine 401 and the upper right long beam 702 of the chassis frame.

Embodiment 3, as shown in fig. 7, 8, and 9, a chassis frame of a crawler tractor includes a lower frame 71 and an upper frame 72 fixed above the lower frame 71, a left and a right enclosure casings 73 for respectively enclosing driving wheel housings on left and right sides of a transmission case are provided above the rear side of the lower frame 71, and a rotation space 730 for rotating the driving wheel housings of the transmission case is provided in the enclosure casings 73. The drive wheel housing is a circular protective casing outside the drive shaft of the gearbox for driving the tractor drive wheels. The sleeving connection between the surrounding outer sleeve 73 and the driving wheel shells on the left side and the right side of the gearbox is not locked, and the driving wheel shells of the gearbox are enabled to have the ability of rotating in the rotating space 730 after being installed in the surrounding outer sleeve 73, so that when a tractor vibrates, particularly when an engine vibrates or when the engine is subjected to installation and maintenance of components such as a shock absorber and the like, the engine and the gearbox are connected through a transmission mechanism, the arrangement of the structure of the novel scheme can enable the engine to drive the gearbox to take the position of the surrounding outer sleeve 73 as a fulcrum position, and the engine can have a better position moving range from top to bottom, thereby having a very good effect in the processes of shock absorption and equipment installation and maintenance, particularly having a better effect on the aspects of overall shock absorption and shock absorption of the engine, and having higher stability of structure operation, mechanical failure is not easily generated. Wherein, surround overcoat 73 and can adopt the circle staple bolt, the circle staple bolt axial is kept in left right direction as far as possible, and in addition, the drive wheel shell of the gearbox that the circle staple bolt was not overlapped is too tight on the one hand, and on the other hand, the level and smooth a bit that contact surface between the two can set up, like this, will be more smooth and easy when needs rotate when using, can promote the mobility of damping effect and equipment. The chassis frame of the present application is a track tractor preferably adapted for engine forward propulsion. The surrounding outer cover 73 can be made of metal material, for example, a circular hoop made of steel, and can be a structure with two split halves, such as a structure with easy disassembly and adjustable tightness of the hoop in the prior art, the surrounding outer cover 73 can be fixed on the top of a bracket, the bracket can be fixed on the lower long beam of the chassis frame, for example, on a triangular bracket 666, the triangular bracket 666 can be made of steel and composed of an upright steel column and an inclined steel column, the bottoms of the two columns can be fixed on the lower long beam of the chassis frame and can be fixed by welding, the tops of the two columns are used for fixing the surrounding outer cover 73, if the surrounding outer cover 73 is split by two split halves, the tops of the two columns can be fixed on one half of the surrounding outer cover 73 and can be fixed by welding, the other half of the surrounding jacket 73 can then be spliced to the fixed half and adjusted for tightness, although the upper halves of the two posts can themselves be further fixed by welding.

The upper frame 72 includes an upper left long beam 701 and an upper right long beam 702 which are arranged opposite to each other from left to right, and the lower frame 71 includes a lower left long beam 703 and a lower right long beam 704 which are arranged opposite to each other from left to right.

The distance between the upper left long beam 701 and the upper right long beam 702 is smaller than the distance between the lower left long beam 703 and the lower right long beam 704.

The upper left long beam 701 and the lower left long beam 703 are fixedly mounted through a left inclined support arm 741, and the upper right long beam 702 and the lower right long beam 704 are fixedly mounted through a right inclined support arm 742; the two end parts of the left inclined supporting arm 741 and the two end parts of the right inclined supporting arm 742 are both provided with right-angle interfaces 700 which are connected with the long beam in an installing manner; reinforcing crosspieces 75 extending in the left-right direction are fixedly arranged between the left and right of the upper left long beam 701 and the upper right long beam 702. The fixing, mounting and connecting modes can be realized by adopting a welding mode, and of course, the fixing, mounting and connecting modes can also be realized by adopting a mode of arranging corresponding holes and using bolts and nuts.

The front parts of the upper left long beam 701 and the upper right long beam 702 are respectively provided with an upwarping section 7000 upwarped forwards, and the upper side and the lower side of the upwarping section 7000 respectively form an upper side front upwarping plane 7001 and a lower side front upwarping plane 7002. The upper front warped plane 7001 may be used to mount a shock absorber, an engine, etc. as a support surface.

The lower side front tilted plane 7002 has a tilt greater than that of the upper side front tilted plane 7001. The upturned design allows better throughput.

Embodiment 4, as shown in fig. 10, a crawler tractor chassis assembly comprises a crawler tractor chassis frame according to embodiment 3, and further comprises a transmission 400, an engine 401, a damper 402, and a crawler traveling wheel system 403 mounted on the chassis frame, wherein the damper 402 has two parts and is respectively mounted between the left lower side of the engine 401 and an upper left long beam 701 of the chassis frame and between the left lower side of the engine 401 and an upper right long beam 702 of the chassis frame, and further, the damper 402 is mounted between the engine 401 and an upper front tilted plane 7001. Therefore, the chassis can stably vibrate during operation and walking under the common vibration damping action of the three aspects of vibration damping through the vibration damping of the crawler, the vibration damping of the novel structure of the chassis frame and the vibration damping of the vibration dampers, and the reliability is improved.

Embodiment 5, as shown in fig. 11, 12, 13, 14, 15, and 16, there is further provided a damper applicable to embodiment 4, including an engine fixing base 1 for mounting with a tractor engine and a damper base 3 for mounting with a tractor chassis frame, wherein an elastic damper body 2 is interposed between the engine fixing base 1 and the damper base 3. The damper of the present embodiment is excellent in the use effect on a crawler tractor, and preferably, a front-drive tractor with a front engine, and each tractor is preferably provided with two or more such dampers, and in the present embodiment, it is recommended that one tractor is provided with two such dampers, one being disposed on the left and right sides of the engine, and preferably on the left and right sides of the engine toward the bottom and being opposed to each other, and then, the damper is mounted on the tractor in a state in which the body damping direction of the elastic damping body 2 is preferably obliquely inclined toward the center of the engine, that is, the direction of the top-to-bottom extension is oriented obliquely toward the center of the engine, so that the top-to-bottom direction of the elastic damping body 2 in the damper located on the lower right side of the engine is obliquely downward to the right, the direction from the bottom to the top is obliquely upward towards the left, namely the oblique direction acts between the lower right side of the engine and the right side of the chassis frame of the tractor, the other damper is symmetrically arranged at the lower left side of the engine, and the left damper and the right damper keep mirror symmetry as much as possible to act between the engine and the chassis frame of the tractor, so that the engine can be prevented from deviating towards the left side and the right side, and a good damping effect can be achieved.

In this embodiment, the elastic vibration damping body 2 may be made of vibration damping rubber or a spring, but here, vibration damping rubber is more recommended, which is also an existing vibration damping rubber, and is a generic name of various rubber vibration dampers, preferably, square vibration damping rubber is adopted, and after the vibration damper is mounted on a tractor, the main vibration damping direction of the selected vibration damping rubber is from top to bottom, or the direction from top to bottom is preferred, so that the elastic vibration damping body 2 can effectively damp vibration in the direction from top to bottom, and the direction can better incline to the central part of an engine, the top of the elastic vibration damping body acts on the engine through the engine fixing seat 1, and the bottom of the elastic vibration damping body acts on a chassis frame through the vibration damping seat 3, so that the elastic vibration damping body needs to be clamped between the two, and a very good effect is achieved.

In order to match such design idea, the following corresponding preferable designs are also performed on the engine fixing seat 1 and the vibration damping seat 3:

the engine fixing seat 1 comprises a side mounting fixing plate 11 fixedly connected with a tractor engine and a bearing plate 32 which is fixedly connected with a tractor chassis frame and is used for bearing the bottom surface of the elastic vibration damping body 2, wherein the side mounting fixing plate 11 is fixedly connected with the tractor engine and the bottom surface of the side mounting fixing plate 11 is used for supplying the elastic vibration damping body 2 to the top surface of the elastic vibration damping body, the vibration damping seat 3 comprises a bottom mounting fixing plate 31 fixedly connected with the tractor chassis frame and a bearing plate 32 which is used for supplying the elastic vibration damping body 2 to the bottom surface of the elastic vibration damping body. In the preferred scheme, the side mounting fixing plate 11 is used for being directly fixedly connected with the left side or the right side of the engine, and the side mounting fixing plate 11 is preferably in a vertical state when being mounted to the engine and two side plate surfaces of the side mounting fixing plate 11 face to the left and right direction; the top bearing plate 12 and the bottom bearing plate 32 are used for clamping the elastic damping body 2 and supporting the top and the bottom of the elastic damping body 2 on two sides, the top bearing plate 12 is preferably installed and fixed on the plate surface of the side installation fixing plate 11 on the side opposite to the engine, the bottom bearing plate 32 is preferably installed and fixed on the position above the bottom installation fixing plate 31, the bottom bearing plate 32 is kept parallel to the top bearing plate 12 as much as possible and the bottom bearing plate 32 is located in the area below the top bearing plate 12, the two side plate surfaces of the bottom bearing plate 32 face the direction obliquely opposite to the center of the engine after the damper is installed on the tractor, so the direction of the plate surface of the top bearing plate 12 is consistent with the direction of the plate surface of the bottom bearing plate 32 as much as possible, thus the extending direction of the bottom bearing plate 32 to the top bearing plate 12 is also obliquely opposite to the center of the engine, that is, top bearing plate 12 and bottom bearing plate 32 are two hang plates after installing, and the lower plate face of top bearing plate 12 is also its bottom surface and is used for propping against the top surface of elastic damping body 2, and the last face of bottom bearing plate 32 is also its top surface and is used for propping against the bottom surface of elastic damping body 2, so in fact, the bottom surface of top bearing plate 12 and the top surface of bottom bearing plate 32 all are the inclined planes for the direction of the main part damping of the elastic damping body 2 of clamp between the two is also oblique and is the central part that is facing to the engine, so the main part of shock absorber: namely the top bearing plate 12, the bottom bearing plate 32 and the elastic vibration damping body 2, which are actually obliquely acted between the engine and the chassis frame, of course, the main oblique action of the elastic vibration damping body 2 not only plays a role of vibration damping, but also plays a role of bridge to be erected on the positions on the left side and the right side of the engine, after the vibration damper is installed, the included angle between the extending direction from the top to the bottom of the elastic vibration damping body 2 and the ground is controlled to be 45-90 degrees as much as possible, and further preferably 60-85 degrees, so that the included angle between the extending direction from the bottom bearing plate 32 to the top bearing plate 12 and the ground is also the corresponding angle range, and the angle design of the three parts ensures that the component supported by the whole structure between the engine fixing seat 1 and the vibration damping seat 3 in the vertical direction can be better guaranteed, and the horizontal direction supporting component can better abut against the engine so that the left and right side vibration dampers can better position the engine between the left and right sides and can also effectively damp vibration.

The fastening means for the top carrier plate 12 can be designed as follows: the top bearing plate 12 is integrally connected with an extension mounting plate 4001 extending downwards at a position close to the plate surface of the side mounting fixing plate 11 at the side back to the engine, the top bearing plate 12 and the extension mounting plate 4001 can be formed by bending a single plate or manufactured by an integral connection method such as a direct integral forging process, the extension mounting plate 4001 is preferably vertical after the shock absorber is mounted, and the plate surface also faces the left and right direction, so that a plurality of opposite side mounting holes 4002 which penetrate in the left and right direction and correspond to each other one by one can be arranged on the extension mounting plate 4001 and the side mounting fixing plate 11, for example, three pairs of opposite upright triangular distribution can be arranged on the extension mounting plate 4001, the extension mounting plate 4001 and the side mounting fixing plate 11 can be mounted and fixed together by a locking piece such as a bolt and a nut, and the top bearing 12 is also fixed, preferably, the extension mounting plate 4001 is attached to a plate surface of the side mounting fixing plate 11, which is back to the engine, so that the structural stability can be improved, the side mounting fixing plate 11 can be designed such that at least a part of the lower side of the side mounting fixing plate 11 is used for being mounted and fixed with the extension mounting plate 4001, at least a part of the upper side of the side mounting fixing plate is used for being fixedly connected with the engine and provided with an engine main mounting hole 4003 which is through in the left-right direction, a plurality of, for example three, mounting holes can be designed to be fixed with the engine through the engine main mounting hole 4003, of course, the engine is provided with corresponding mounting holes to be matched with the engine main mounting hole 4003, and the engine can be fixed through locking members such as bolts and;

the bottom loading plate 32 is preferably fixedly arranged at a position above the bottom mounting fixing plate 31, the bottom loading plate 32 and the bottom mounting fixing plate 31 can be fixedly connected through two front longitudinal mounting plates 4004 and a rear longitudinal mounting plate 4005 which are arranged at intervals in the front-rear direction, the plate surface directions of the front longitudinal mounting plate 4004 and the rear longitudinal mounting plate 4005 can face towards the front-rear direction, the top and the bottom of the front longitudinal mounting plate 4004 can be respectively welded and fixed between the bottom surface of the bottom loading plate 32 and the top surface of the bottom mounting fixing plate 31, similarly, the top and the bottom of the rear longitudinal mounting plate 4005 can also be respectively welded and fixed between the bottom surface of the bottom loading plate 32 and the top surface of the, preferably, the bottom surface of the bottom mounting fixing plate 31 is adapted to be well fitted to a portion of the surface of the chassis frame when the damper is mounted and fixed by welding, this enables the bottom mounting plate 31 to have a very good fixing and supporting effect with the chassis frame. The chassis frame preferably has a sloping surface sloping upwardly and forwardly, and the bottom mounting plate 31 is preferably a sloping plate sloping upwardly and forwardly. In order to ensure that the bottom bearing plate 32, the top bearing plate 12, the elastic vibration damping body 2 and their orientations are kept in a plane area perpendicular to the front-back direction of the tractor as much as possible so that the supported components are only in the left-right direction and the up-down direction and the front-back direction components are avoided as much as possible, and the vibration damper is made to act against the engine better, the maximum supported length of the rear longitudinal mounting plate 4005 between the bottom surface of the bottom bearing plate 32 and the top surface of the bottom mounting fixing plate 31 is required to be longer than the maximum supported length of the front longitudinal mounting plate 4004 between the bottom surface of the bottom bearing plate 32 and the top surface of the bottom mounting fixing plate 31, and the influence on the use effect caused by redundant front-back inclination of the bottom bearing plate 32, the top bearing plate 12, the elastic vibration damping body 2 and their orientations in the front. In this embodiment, the fixing manner of the bolts and the holes may be a welding fixing manner, but the welding fixing manner has relatively poor flexibility, and once the bolts are welded, the bolts are difficult to adjust, the bolts have relatively poor detachability, and the bolts can be used;

the bottom bearing plate 32 and the top bearing plate 12 are provided with corresponding damping rubber mounting holes 4006, the damping rubber mounting holes 4006 preferably adopt arc-shaped slotted holes, the damping rubber mounting holes 4006 on the bottom bearing plate 32 and the damping rubber mounting holes 4006 on the top bearing plate 12 can preferably be in a cross shape, that is, for example, the length extension direction of the elongated slot of the damping rubber mounting hole 4006 on the top bearing plate 12 is the front-back direction, the length extension direction of the elongated slot of the damping rubber mounting hole 4006 on the bottom bearing plate 32 is preferably the left-right direction, and in addition, the damping rubber mounting holes 4006 on the bottom bearing plate 32 and the damping rubber mounting holes 4006 on the top bearing plate 12 can be positioned by inserting a 400stud 7, so that the bottom bearing plate 32, the top bearing plate 12 and the elastic damping body 2 are connected in series and the elastic damping body 2 is effectively positioned between the bottom bearing plate 32 and the top bearing plate 12; the vibration damping seat 3 CAN be provided with a vibration sensor 444, a contact of the vibration sensor 444 faces the engine fixing seat 1, the gap of the contact CAN be adjusted according to the vibration intensity, the information of the sensor is accessed to a CAN bus of an engine to perform information feedback, and the vibration intensity and the failure condition of the vibration damping glue are warned through sound or an indicator light; the vibration damping base 3 is provided with a nut hole 333, and when the vibration damping glue fails, the vibration damping glue is screwed in through other screw rods or other screw rods to jack up the engine fixing base 1 upwards, so that the vibration damping glue is easily replaced.

A front limiting wing plate 21 and a rear limiting wing plate 22 which respectively limit the front and the rear of the elastic vibration damper 2 are fixed on the front and the rear sides of the side mounting fixing plate 11, and the top bearing plate 12, the front limiting wing plate 21, the rear limiting wing plate 22 and the bottom bearing plate 32 surround to form a vibration damping region 200 for the elastic vibration damper 2 to be placed in. A controllable and stable damping area is formed.

The front side limit wing plate 21 includes a front side main wing plate 211 with a plate surface arranged in the front-back direction, the rear side limit wing plate 22 includes a rear side main wing plate 221 with a plate surface arranged in the front-back direction, the surface of the bottom edge portion of the front side main wing plate 211 and at least a part of the top surface of the bottom bearing plate 32 are oppositely arranged in the direction from the bottom bearing plate 32 to the top bearing plate 12, and the surface of the bottom edge portion of the rear side main wing plate 221 and at least a part of the top surface of the bottom bearing plate 32 are also oppositely arranged in the direction from the bottom bearing plate 32 to the top bearing plate 12.

The surface of the bottom edge portion of the front main wing plate 211 is closer to the top carrier plate 12 than the portion of the top surface of the bottom carrier plate 32 opposite to the surface of the bottom edge portion of the front main wing plate 211 in the direction from the bottom carrier plate 32 to the top carrier plate 12, and the surface of the bottom edge portion of the rear main wing plate 221 is closer to the top carrier plate 12 than the portion of the top surface of the bottom carrier plate 32 opposite to the surface of the bottom edge portion of the rear main wing plate 221 in the direction from the bottom carrier plate 32 to the top carrier plate 12.

The surface of the bottom edge of the front main flap 211 and the surface of the bottom carrier plate 32 opposite to the bottom edge of the front main flap 211 have a gap between the top surfaces of the bottom carrier plate 32 and the top carrier plate 12, and the surface of the bottom edge of the rear main flap 221 and the surface of the bottom edge of the bottom carrier plate 32 opposite to the bottom edge of the rear main flap 221 also have a gap between the top surfaces of the bottom carrier plate 32 and the top carrier plate 12.

The front main wing plate 211 has a front positioning protrusion 201 integrally connected to a bottom surface of the front main wing plate 211 for positioning in a direction of the bottom carrier plate 32, a rear positioning protrusion 202 integrally connected to a bottom surface of the rear main wing plate 221 for positioning in a direction of the bottom carrier plate 32, and the bottom carrier plate 32 has a front guide hole 2001 for guiding the front positioning protrusion 201 and a rear guide hole 2002 for guiding the rear positioning protrusion 202. The gap is reserved between the two side wing protection plates and the vibration damping seat, the bottom edges of the two side wing protection plates do not touch the top surface of the bottom bearing plate of the vibration damping seat under normal conditions, the flat surface is preferred, once the vibration damping glue is in strain failure, the two side wing protection plates can be supported on the top surface of the bottom bearing plate, and safety accidents caused by the droop of an engine are prevented; when the vibration-damping rubber strain fails, the protruding blocks are guided into the holes to be longitudinally positioned and fix the engine, the wing plates are prevented from leaning against the top surface of the bottom bearing plate but possibly sliding, the protruding blocks can be inserted into the holes to prevent the engine from sliding off the bottom bearing plate to cause accidents, and naturally, under normal conditions, the protruding blocks are not inserted into the corresponding holes or an effective interval is kept between the protruding blocks and the corresponding holes to prevent the protruding blocks and the corresponding holes from touching to cause the vibration-damping effect to be poor or even damage equipment under normal vibration damping.

The bottom surface of the bottom mounting fixing plate 31 is fixedly provided with a supporting extension plate 300 extending away from the direction of the bottom mounting fixing plate 31, and an included angle part 301 capable of being erected on a chassis frame of a tractor is formed between the bottom mounting fixing plate 31 and the supporting extension plate 300. Support extension plate 300 can be preferably two and respectively a body coupling in the front and back both sides of end installation fixed plate 31, support extension plate 300 and preferably be close to engine one side and contained angle portion 301 is preferred leans on the engine outside, can let contained angle portion 301 prop up from inside to outside in the tractor chassis frame like this, and the installation effect is better, and the frame goes to can further pass through welded fastening in the tractor chassis frame after the installation.

Example 6, as shown in fig. 17, a tractor vibration damping system comprising a tractor vibration damper of the kind described in example 5 and a tractor chassis frame for mounting the vibration damper.

Claims

1. The crawler traveling wheel train of the tractor is characterized by comprising two wheel train units which are oppositely arranged at left and right, wherein each wheel train unit comprises a tensioning wheel (81), a guide wheel (82), a driving wheel (83) positioned above the guide wheel (82) and a crawler (84) wound on the tensioning wheel (81), the guide wheel (82) and the driving wheel (83), a first supporting wheel (851), a balance swinging wheel set (850) and a second supporting wheel (852) are sequentially arranged between the tensioning wheel (81) and the guide wheel (82) at the front and at the back, the crawler (84) is further wound on the lower side parts of the first supporting wheel (851), the balance swinging wheel set (850) and the second supporting wheel (852), a front balance swinging wheel (8500) and a rear balance swinging wheel (8500) which can float up and down are arranged on the balance swinging wheel set (850), and the heights of the tensioning wheel (81) and the guide wheel (82) are higher than that of the first supporting wheel (851) and the second supporting wheel (852) are higher than that of the second supporting wheel (852), and height of the wheel (852).

2. A crawler track system according to claim 1, wherein the difference in height between said first (851) and said second (852) wheels is less than 10 mm.

3. A crawler belt system of a tractor according to claim 1, wherein said idler (81) is 10-30mm higher than the first idler (851), said idler (81) is 10-30mm higher than the second idler (852), said guide wheel (82) is 10-30mm higher than the first idler (851), and said guide wheel (82) is 10-30mm higher than the second idler (852).

4. A crawler belt system according to claim 1, wherein said first and second bogie wheels (851, 852) are each provided with a first and second guide iron (861, 862) respectively.

5. The crawler belt of a tractor according to claim 4, wherein the front end portion and the rear end portion of the first guide iron (861) are both curved warped sections, and the front end portion and the rear end portion of the second guide iron (862) are both curved warped sections.

6. The crawler belt of a tractor according to claim 5, wherein a warp height of a front end portion of said first guide iron (861) is lower than a warp height of a rear end portion thereof, and a warp height of a front end portion of said second guide iron (862) is higher than a warp height of a rear end portion thereof.

7. A crawler belt system according to claim 4, wherein the lowest position of said first guide iron (861) is lower than the lowest position of the first bogie wheel (851) by 2-5mm, and the lowest position of said second guide iron (862) is lower than the lowest position of the second bogie wheel (852) by 2-5 mm.

8. A crawler belt system according to claim 1, wherein a balance wheel guide (855) is provided between the front and rear pairs of balance wheels (8500).

9. The crawler belt system of a tractor according to claim 8, wherein the balance wheel guide iron (855) has a high middle section and a low front-rear adjacent balance wheel section.

10. A tractor chassis assembly comprising a chassis frame, said chassis frame having mounted thereon a crawler track of a tractor according to any one of claims 1 to 9, said chassis frame further having mounted thereon a transmission (400), an engine (401), and a shock absorber (402), said shock absorber (402) having two and being mounted between the lower left side of the engine (401) and the upper left long beam (701) of the chassis frame and between the lower left side of the engine (401) and the upper right long beam (702) of the chassis frame, respectively.