CN104760623A - Halftrack tractor - Google Patents
Halftrack tractor Download PDFInfo
- Publication number
- CN104760623A CN104760623A CN201510107839.XA CN201510107839A CN104760623A CN 104760623 A CN104760623 A CN 104760623A CN 201510107839 A CN201510107839 A CN 201510107839A CN 104760623 A CN104760623 A CN 104760623A
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- CN
- China
- Prior art keywords
- wheel
- underframe
- caterpillar
- tractor
- energy disperser
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/02—Endless track vehicles with tracks and additional ground wheels
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D55/00—Endless track vehicles
- B62D55/08—Endless track units; Parts thereof
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Soil Working Implements (AREA)
- Agricultural Machines (AREA)
Abstract
The invention provides a halftrack tractor, which is low in improvement cost and suitable for farming. The halftrack tractor comprises a tractor body, front wheels and a track system, wherein the track system comprises a rear driving axle, two wheel rims sleeving the rear driving axle, split gears mounted on the external peripheries of the wheel rims, a cross beam and a reduction gearbox, which are mounted on the tractor body; the reduction gearbox is positioned between the two wheel rims; the input shaft of the reduction gearbox is connected with the rear driving axle; the output shaft of the reduction gearbox is meshed with the wheel rims through splines and the reduction gearbox drives the wheel rims to rotate; a lifting frame is mounted at each of the two ends of the cross beam; the lifting frames are movably connected with underframes through underframe supporting shafts; and the underframes can swing around the underframe supporting shafts. According to the halftrack tractor, the rear axle of a wheel tractor is removed and replaced to be in a track form, the rear wheels of a conventional agricultural tractor are improved to the halftrack tractor, and the improvement cost is low; and the track is used for walking, so that the halftrack tractor can walk on pavements with soft and sticky soil.
Description
Technical field
The present invention relates to a kind of trac., especially a kind of half-track tractor.
Background technology
Trac. can be divided into wheel type and crawler type by walking manner, and crawler type is divided into again full crawler belt and half-track, and the trac. of two kinds of forms can be used in the many-sided use of arable land, sowing, intertillage, weeding, results, transport etc. in agricultural, animal husbandry.But relative to wheel-tire tractor, track type tractor is smaller to ground pressure, in operation, be specially adapted to soft ground and wasteland.
During agricultural wheel-tire tractor operation, there is dark impression with earth surface place, roll reality sometimes, the permeability to air of spoiled soil.At the soil difficulty in walking just rained or just irrigated, even occur falling into the accidents such as car, skidding, overturning.Destroy paddy field clay structure especially at paddy-field-working and cause the paddy field depth not equal, causing the underproduction of paddy rice, even the inefficacy in paddy field.Travel at broken country and easily occur unsafe situations such as hypotraction, landslide, overturning.
Half-track tractor is in the past formed, and is to change the outfit into crawler type after being extractd by the back axle of wheel-tire tractor.But the operation that changes the outfit needs professional and technical personnel to carry out, therefore costly, so install crawler belt additional on existing agricultural traction engine back axle, repacking half-track tractor into becomes urgent expectation.
Summary of the invention
The invention provides a kind of repacking cost low, be suitable for the half-track tractor of farming.
Realize the half-track tractor of the object of the invention, comprise trac. car body, front-wheel and caterpillar system; Described caterpillar system comprises rear drive shaft, and be sleeved on two wheel rims on rear drive shaft, be arranged on the detachable gear wheel on described wheel rim excircle, be arranged on the crossbeam on car body and drop-gear box, described drop-gear box is between two wheel rims; The input shaft of described drop-gear box is connected with rear drive shaft, and the output shaft of described drop-gear box is engaged with wheel rim by spline, and drives wheel rim to rotate; The two ends of described crossbeam are respectively provided with a suspension bracket, and described suspension bracket is connected with underframe by underframe fulcrum, and described underframe can swing around underframe fulcrum;
Described underframe is connected with front caterpillar wheel, middle caterpillar wheel, rear caterpillar wheel and rear tension wheel from front to back successively; Described rear tension wheel is positioned at the rear end of underframe, and the front end of described underframe is connected with tension wheel support arm by rotating shaft, and the other end of described tension wheel support arm is connected with front tension wheel by rotating shaft; Tension wheel energy disperser is also provided with between described tension wheel support arm and underframe;
On described detachable gear wheel, front tension wheel, front caterpillar wheel, middle caterpillar wheel, rear caterpillar wheel and rear tension wheel, cover has a rubber belt track, and the inside face of described rubber belt track is provided with the teeth be engaged mutually with detachable gear wheel;
The two ends of described crossbeam are respectively provided with a caterpillar wheel energy disperser arm, and described caterpillar wheel energy disperser arm is connected with caterpillar wheel energy disperser by rotating shaft, and the other end of described caterpillar wheel energy disperser is flexibly connected with underframe by rotating shaft.
Described underframe comprises front portion, middle part and rear portion, and described middle part is parallel to the ground, and described front and rear is upwards outward-dipping relative to middle part, and the angle of inclination of described front portion is greater than the angle of inclination at rear portion.
Described tension wheel energy disperser comprises spring, bumper and tension wheel energy disperser guide rod, and on described tension wheel energy disperser guide rod, cover has bar cover, and described bar cover is arranged on underframe by rotating shaft.
The position of described underframe fulcrum is between middle caterpillar wheel and rear caterpillar wheel.
The outside face of described rubber belt track is provided with well-distributed projection.
The cross section of described underframe is pentagon, and tip upward.
The centre of described crossbeam is provided with cross-beam connecting plate, and described cross-beam connecting plate is bolted on trac. car body.
The beneficial effect of half-track tractor of the present invention is as follows:
Half-track tractor of the present invention, be change the outfit into crawler type after being extractd by the back axle of wheel-tire tractor, repack the trailing wheel of existing agrimotor into half-track tractor, repacking cost is low; Use crawler travel, can the road surface walking such as, adhesion soft at soil; Can use in Special use place, as: paddy field, hills (needing climbing) careless pasture etc., conservation tillage and safety driving can be carried out.
Accompanying drawing explanation
Fig. 1 is the structural representation of half-track tractor of the present invention.
Fig. 2 is the structural representation of the caterpillar system of half-track tractor of the present invention.
Fig. 3 is the crossbeam partial top view of half-track tractor of the present invention.
Fig. 4 is the crossbeam partial right side view of half-track tractor of the present invention.
Fig. 5 is the underframe partial top view of half-track tractor of the present invention.
Fig. 6 is the underframe partial left side view of half-track tractor of the present invention.
Fig. 7 is the caterpillar wheel energy disperser partial schematic diagram of half-track tractor of the present invention.
Fig. 8 is half-track tractor working state figure one of the present invention.
Fig. 9 is half-track tractor working state figure two of the present invention.
Figure 10 is half-track tractor working state figure three of the present invention.
Detailed description of the invention
As shown in Fig. 1 ~ 7, half-track tractor of the present invention, comprises trac. car body 100, and trac. car body 100 is mounted with the driving engine and operator's compartment 70 that are blocked by hood.Operator's compartment 70 is made up of front windshield 71, cab door 72, side glass 73 and rear glass 74, is provided with driver seat 75 therein, the bearing circle 76 in control front-wheel direction and transmission system 77 etc.Cab door 72 passes through hinge 78 with the mode switch that circles round.
Also comprise front-wheel 80 and caterpillar system 20; Described caterpillar system 20 comprises rear drive shaft 6, is sleeved on two wheel rims 3 on rear drive shaft 6, and be arranged on the detachable gear wheel 2 on described wheel rim 3 excircle, be arranged on the crossbeam 16 on car body 100 and drop-gear box, described drop-gear box is between two wheel rims 3; The input shaft of described drop-gear box is connected with rear drive shaft 6, and the output shaft of described drop-gear box is engaged with wheel rim 3 by spline, and drives wheel rim 3 to rotate; The two ends of described crossbeam 16 are respectively provided with a suspension bracket 17, and described suspension bracket 17 is connected with underframe 7 by underframe fulcrum 17-1, and described underframe 7 can swing around underframe fulcrum 17-1;
Described underframe 7 is connected with from front to back successively front caterpillar wheel 11-1, middle caterpillar wheel 11-2, rear caterpillar wheel 11-3 and rear tension wheel 10; Described rear tension wheel 10 is positioned at the rear end of underframe 7, and the front end of described underframe 7 is connected with tension wheel support arm 8 by rotating shaft, and the other end of described tension wheel support arm 8 is connected with front tension wheel 9 by rotating shaft; Tension wheel energy disperser 12 is also provided with between described tension wheel support arm 8 and underframe 7;
On described detachable gear wheel 2, front tension wheel 9, front caterpillar wheel 11-1, middle caterpillar wheel 11-2, rear caterpillar wheel 11-3 and rear tension wheel 10, cover has a rubber belt track 1, and the inside face of described rubber belt track 1 is provided with the teeth be engaged mutually with detachable gear wheel 2;
The two ends of described crossbeam 16 are respectively provided with a caterpillar wheel energy disperser arm 18, and described caterpillar wheel energy disperser arm 18 is connected with caterpillar wheel energy disperser 15 by rotating shaft, and the other end of described caterpillar wheel energy disperser 15 is flexibly connected with underframe 7 by rotating shaft.
Described underframe 7 comprises front portion, middle part and rear portion, and described middle part is parallel to the ground, and described front and rear is upwards outward-dipping relative to middle part, and the angle of inclination of described front portion is greater than the angle of inclination at rear portion.
Described tension wheel energy disperser 12 comprises spring, bumper and tension wheel energy disperser guide rod 12-3, and on described tension wheel energy disperser guide rod 12-3, cover has bar to overlap 12-2, and described bar cover 12-2 is arranged on underframe 7 by rotating shaft.
The position of described underframe fulcrum 17-1 is between middle caterpillar wheel 11-2 and rear caterpillar wheel 11-3.
The outside face of described rubber belt track 1 is provided with well-distributed projection.
The cross section of described underframe 7 is pentagon, and tip upward.
The centre of described crossbeam 16 is provided with cross-beam connecting plate 16A, and described cross-beam connecting plate 16A is fixed on trac. car body 100 by bolt 16-1.
Because employing detachable gear wheel 2, the replacing of rubber belt track 1 being become and is more prone to.
The rubber belt track 1 contacted with caterpillar wheel (11-1,11-2,11-3) directly contacts with ground, and tension wheel (9,10) is in suspended state.Namely rubber belt track 1 is suspension with the contact portion of tension wheel and is inclined upwardly.The ground connection front end of rubber belt track 1 is upwards floated, and the operation of steering swivel system can be made to be more prone to, and particularly when trac. moves forward, uses bearing circle to change the lighter of direction of travel change.By this this measure, trac. can reduce Turning radius, improves turning efficiency.
On muddy ground, can be slightly sagging outside the rubber belt track 1 that caterpillar wheel (11-1,11-2,11-3) supports, now the crawler belt of tension wheel (9,10) floating parts also can with earth surface, disperse car body to the pressure on ground.
In real work, the advance of trac. of the present invention, retreat, the operation such as to turn to be very easy to, and crawler sections not easily adhesive tape earth, even if adhesive tape is also very easy to remove.
The rotation axis of rear drive shaft 6 and the rotation axis of detachable gear wheel 2 are coaxial lines, and the rotating diameter of detachable gear wheel 2 is equal with 2 times of trailing wheel static loaded radius.When static loaded radius refers to arbitrary load under standard pressure, rear drive shaft is to the distance on ground.Standard pressure value is provided by manufacturer, and the rotative speed of trailing wheel is consistent with the rotative speed of crawler belt.Long and two-short dash line represents the pitch circle of gear and the datum line position of 5 supposition pitch circles of taking turns.The axle drive shaft of usual trac. and the inputting shaft velocity ratio of crawler sections are 1.557 ~ 1.600.In order to adjust this velocity ratio, need gearbox is installed.
Tension wheel energy disperser 12 is equipped with spring and damping, tension wheel energy disperser guide rod 12-3 can move in the axial direction, and tension wheel energy disperser 12 is when flexible, and tension wheel support arm 8 is subjected to displacement, and front tension wheel 9 is subjected to displacement simultaneously, plays buffer action.Long and two-short dash line circle 9-1 represents the track of front tension wheel 9 displacement.Tension wheel energy disperser 12 has can alleviate the impact function external to front tension wheel 9, can keep the tension force of rubber belt track 1 simultaneously, and can prevent the loose of rubber belt track 1.By regulating nut on rear side of tension wheel energy disperser 12, the amount of compression of regulating spring, thus regulate the tensioning of rubber belt track 1.
Underframe 7 and 5 wheels: namely certain space is arranged at the top of forward and backward tension wheel, caterpillar wheel (11-1,11-2,11-3), and therefore can not pile up earth, the top of tension wheel energy disperser 12 also has living space, so also would not cause the accumulation of earth.
The cross section of underframe 7 is pentagon shape, and has gable roof face.So underframe can not adhere in work and pile up earth.
Caterpillar wheel energy disperser 15 can be made up of several springs connected side by side or array connects, and can use viscosity energy disperser.
Principle of work with reference to Fig. 8,9,10 pairs of caterpillar wheel energy dispersers 15 is described.
Fig. 8 is the walking in a horizontal state state of crawler sections 20.At this moment caterpillar wheel energy disperser 15 is non-telescope.The intermediate distance of the rotating shaft of caterpillar wheel energy disperser 15 upper end and the rotating shaft of lower end is set as H1=322mm.
Fig. 9 to be crawler sections 20 with horizontal surface be benchmark forward downward (back upper place) tilts 5 ° time walking states.Underframe 7 tilts along the circumferential left-hand revolution of axis of oscillation P, and at this moment caterpillar wheel energy disperser 15 shrinks.The intermediate distance H2=307mm of the rotating shaft of caterpillar wheel energy disperser 15 upper end and the rotating shaft of lower end.
Figure 10 to be crawler sections 20 with horizontal surface be benchmark forward upward (back lower place) tilts 5 ° time walking states.Underframe 7 tilts along the circumferential clickwise of axis of oscillation P, and at this moment caterpillar wheel energy disperser 15 stretches.The intermediate distance H3=337mm of the rotating shaft of caterpillar wheel energy disperser 15 upper end and the rotating shaft of lower end.Crawler sections 20 is when tilting for ± 5 °, and the amplitude of fluctuation of the intermediate distance of the rotating shaft of caterpillar wheel energy disperser 15 upper end and the rotating shaft of lower end, is H3-H2=337-307=30mm
Underframe 7 is when swinging along the circumferential anticlockwise direction of axis of oscillation P, and caterpillar wheel energy disperser 15 shrinks, and alleviates underframe 7 amplitude of fluctuation counterclockwise by the elasticity of caterpillar wheel energy disperser 15 self.Underframe 7 is when swinging along the circumferential clockwise direction of axis of oscillation P, and caterpillar wheel energy disperser 15 stretches, and alleviates underframe 7 amplitude of fluctuation clockwise by the elasticity of caterpillar wheel energy disperser 15 self.
Crawler sections 20 need not install other additional and limit its complex appts swung, and obviously can alleviate hunting range by simple structure, thus the generation of the phenomenon that prevents from pitching.
As mentioned above, because rubber belt track 1 is subject to the elastic force from tension wheel energy disperser, and the tensile force of self, thus form tension.Front tension wheel 9 is pressed towards detachable gear wheel 2 direction due to the tension force effect of rubber belt track 1.
The swing of the crawler sections 20 of half-track tractor is also problem.As do not limited the structure that it swings, once swing, crawler sections may touch trac. car body.The excessive swing of crawler sections is limited by the caterpillar wheel energy disperser 15 between design underframe 7 and crossbeam 16.When installing crawler sections 20, the special device limiting its hunting range need not be installed.
By tension wheel energy disperser 12, front tension wheel 9 is connected with underframe 7.Tension wheel energy disperser 12 can alleviate the function that front tension wheel 9 is subject to external impact force, can keep the tension force of rubber belt track 1 simultaneously, has the function preventing rubber belt track 1 lax.So trac. car body 100 can not be transferred to front tension wheel 9 external impact force in travelling, and tension force that rubber belt track 1 can be kept certain.
It is more than the explanation that agricultural half-track tractor is carried out.But if build with machinery, snow wagon etc., utilize the self-propelled vehicle of the low ground pressure of half-track tractor and strong tractive force, be all applicable to the present invention.Here the self-propelled vehicle mentioned is mounted with driving engine, utilizes its powered rotation wheel, do not utilize the self-propelled vehicle that track travels on road
Embodiment recited above is only be described the preferred embodiment of the present invention; not scope of the present invention is limited; do not departing under the present invention designs spiritual prerequisite; the various distortion that the common engineering staff in this area make technical solution of the present invention and improvement, all should fall in protection domain that claims of the present invention determine.
Claims (7)
1. half-track tractor, is characterized in that: comprise trac. car body, front-wheel and caterpillar system; Described caterpillar system comprises rear drive shaft, and be sleeved on two wheel rims on rear drive shaft, be arranged on the detachable gear wheel on described wheel rim excircle, be arranged on the crossbeam on car body and drop-gear box, described drop-gear box is between two wheel rims; The input shaft of described drop-gear box is connected with rear drive shaft, and the output shaft of described drop-gear box is engaged with wheel rim by spline, and drives wheel rim to rotate; The two ends of described crossbeam are respectively provided with a suspension bracket, and described suspension bracket is connected with underframe by underframe fulcrum, and described underframe can swing around underframe fulcrum;
Described underframe is connected with front caterpillar wheel, middle caterpillar wheel, rear caterpillar wheel and rear tension wheel from front to back successively; Described rear tension wheel is positioned at the rear end of underframe, and the front end of described underframe is connected with tension wheel support arm by rotating shaft, and the other end of described tension wheel support arm is connected with front tension wheel by rotating shaft; Tension wheel energy disperser is also provided with between described tension wheel support arm and underframe;
On described detachable gear wheel, front tension wheel, front caterpillar wheel, middle caterpillar wheel, rear caterpillar wheel and rear tension wheel, cover has a rubber belt track, and the inside face of described rubber belt track is provided with the teeth be engaged mutually with detachable gear wheel;
The two ends of described crossbeam are respectively provided with a caterpillar wheel energy disperser arm, and described caterpillar wheel energy disperser arm is connected with caterpillar wheel energy disperser by rotating shaft, and the other end of described caterpillar wheel energy disperser is flexibly connected with underframe by rotating shaft.
2. half-track tractor according to claim 1, it is characterized in that: described underframe comprises front portion, middle part and rear portion, described middle part is parallel to the ground, and described front and rear is upwards outward-dipping relative to middle part, and the angle of inclination of described front portion is greater than the angle of inclination at rear portion.
3. half-track tractor according to claim 1, it is characterized in that: described tension wheel energy disperser comprises spring, bumper and tension wheel energy disperser guide rod, on described tension wheel energy disperser guide rod, cover has bar cover, and described bar cover is arranged on underframe by rotating shaft.
4. half-track tractor according to claim 1, is characterized in that: the position of described underframe fulcrum is between middle caterpillar wheel and rear caterpillar wheel.
5., according to the arbitrary described half-track tractor of Claims 1 to 4, it is characterized in that: the outside face of described rubber belt track is provided with well-distributed projection.
6., according to the arbitrary described half-track tractor of Claims 1 to 4, it is characterized in that: the cross section of described underframe is pentagon, and tip upward.
7., according to the arbitrary described half-track tractor of Claims 1 to 4, it is characterized in that: the centre of described crossbeam is provided with cross-beam connecting plate, described cross-beam connecting plate is bolted on trac. car body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510107839.XA CN104760623B (en) | 2015-03-12 | 2015-03-12 | Half-track tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510107839.XA CN104760623B (en) | 2015-03-12 | 2015-03-12 | Half-track tractor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104760623A true CN104760623A (en) | 2015-07-08 |
| CN104760623B CN104760623B (en) | 2018-07-06 |
Family
ID=53642810
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510107839.XA Expired - Fee Related CN104760623B (en) | 2015-03-12 | 2015-03-12 | Half-track tractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104760623B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111319693A (en) * | 2020-03-22 | 2020-06-23 | 西北工业大学 | Complex terrain rescue and survey robot |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001239967A (en) * | 2000-03-01 | 2001-09-04 | Kubota Corp | Crawler traveling device |
| CN101583531A (en) * | 2007-01-15 | 2009-11-18 | 株式会社久保田 | Crawler travel device |
| JP2010202057A (en) * | 2009-03-04 | 2010-09-16 | Yanmar Co Ltd | Semi-crawler type working vehicle |
| CN202529053U (en) * | 2012-04-25 | 2012-11-14 | 厦门大学 | Triangular track walking device adopting spring to damp |
| CN202703731U (en) * | 2012-07-12 | 2013-01-30 | 厦门厦工机械股份有限公司 | Crawler travelling device with independent damping function |
| CN104139808A (en) * | 2014-07-21 | 2014-11-12 | 第一拖拉机股份有限公司 | Caterpillar tractor adopting friction drive rubber belt track running system |
| CN204605980U (en) * | 2015-03-12 | 2015-09-02 | 哈克(邯郸)农业机械装备制造有限公司 | Half-track tractor |
-
2015
- 2015-03-12 CN CN201510107839.XA patent/CN104760623B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001239967A (en) * | 2000-03-01 | 2001-09-04 | Kubota Corp | Crawler traveling device |
| CN101583531A (en) * | 2007-01-15 | 2009-11-18 | 株式会社久保田 | Crawler travel device |
| JP2010202057A (en) * | 2009-03-04 | 2010-09-16 | Yanmar Co Ltd | Semi-crawler type working vehicle |
| CN202529053U (en) * | 2012-04-25 | 2012-11-14 | 厦门大学 | Triangular track walking device adopting spring to damp |
| CN202703731U (en) * | 2012-07-12 | 2013-01-30 | 厦门厦工机械股份有限公司 | Crawler travelling device with independent damping function |
| CN104139808A (en) * | 2014-07-21 | 2014-11-12 | 第一拖拉机股份有限公司 | Caterpillar tractor adopting friction drive rubber belt track running system |
| CN204605980U (en) * | 2015-03-12 | 2015-09-02 | 哈克(邯郸)农业机械装备制造有限公司 | Half-track tractor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111319693A (en) * | 2020-03-22 | 2020-06-23 | 西北工业大学 | Complex terrain rescue and survey robot |
| CN111319693B (en) * | 2020-03-22 | 2021-04-20 | 西北工业大学 | Complex terrain rescue and survey robot |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104760623B (en) | 2018-07-06 |
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