CN102582685B - Stepless steering system for crawler - Google Patents
Stepless steering system for crawler Download PDFInfo
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- CN102582685B CN102582685B CN201210047643.2A CN201210047643A CN102582685B CN 102582685 B CN102582685 B CN 102582685B CN 201210047643 A CN201210047643 A CN 201210047643A CN 102582685 B CN102582685 B CN 102582685B
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- gear
- planet row
- shunting
- tracked vehicle
- continuously tracked
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Abstract
The invention relates to a stepless steering system for a crawler, comprising a splitting mechanism, a non-stop mechanism and a steering mechanism, wherein the splitting mechanism is provided with an input end and two output ends, the input end is connected with a corresponding power source, and the two output ends are respectively connected with the non-stop mechanism and the steering mechanism; the splitting mechanism comprises a splitting planetary line which is composed of a planetary gear transmission mechanism, and the planetary gear transmission mechanism is provided with three elements, namely a sun gear, a gear ring and a planet carrier; and one of the elements is a power input element which is used as the input end of the splitting mechanism, the other two elements are power output elements which can be respectively braked by brake mechanisms, and the two power output elements are used as the two output ends of the splitting mechanism. With the adoption of the mechanical splitting mechanism, the machining difficulty and manufacturing cost of the existing hydraulic mechanical differential steering system are reduced.
Description
Technical field
The present invention relates to a kind of mechanical stepless steering swivel system for continuously tracked vehicle.
Background technology
Steering clutch and hydraulic machinery differential steering system etc. have roughly been experienced in the development of the steering swivel system of continuously tracked vehicle.
Steering clutch is multi-plate friction clutch, by the friction force transmitting torque of friction surface, in the time separating the steering clutch of a certain side, just can reduce or cut off the torque that this side drive wheel is transmitted, and makes continuously tracked vehicle Turning travel.Because it is simple in structure, easily manufactured, on middle-size and small-size continuously tracked vehicle in early days, obtain extensive utilization.But because its production efficiency is low, energy consumption is large, along with the continuous increase of continuously tracked vehicle power, the application of steering clutch is subject to certain restrictions.
Hydraulic machinery differential steering system is as Chinese agriculture engineering journal the 21st the 3rd phase of volume in 2005 disclosed " power analysis of Dongfanghong 1302R tractor hydraulic mechanical differential steering hardware ", hydraulic machinery differential steering system is made up of diversion mechanism, straight mechanism, steering hardware and the left and right planet row that confluxes, its middle left and right is confluxed planet row by corresponding planetary gear mechanism formation, and engine power is shunted Hou Yi road by diversion mechanism and flowed to straight mechanism; One road flows to steering hardware, the two-way power of the straight of flowing through mechanism and steering hardware enters corresponding planet row by gear ring and the sun wheel of left and right planet row respectively, and exported by the left and right pinion carrier of correspondence, the various combination of the size and Orientation flowing by two-way power completes the divertical motion of vehicle.Hydraulic machinery differential steering system is the compound hydraulic mechanical type two power flow steering system of hydrostatic drive, mechanical drive and Planetary Gear Transmission.Compare with mechanical type two power flow steering system, it have dynamics good, can make continuously tracked vehicle realize stepless, pivot stud, operating efficiency high, operate the advantages such as light, labour intensity is low, road grabbing good, turning track is accurate.But diversion mechanism and steering hardware in hydraulic machinery differential steering system are fluid control, need high precision, high-power Hydraulic Elements, the continuously tracked vehicle manufacturing cost and use cost that makes to equip this steering swivel system is high, uses and is also subject to certain limitation at present on domestic continuously tracked vehicle.
Summary of the invention
The object of the present invention is to provide a kind of mechanical stepless steering swivel system for continuously tracked vehicle, to reduce difficulty of processing and the cost of manufacture of diversion mechanism in existing hydraulic machinery differential steering system.
In order to address the above problem, technical scheme of the present invention is:
For the continuous turning system of continuously tracked vehicle, comprise diversion mechanism, straight mechanism and steering hardware, described diversion mechanism has input end for being connected with corresponding propulsion source and two mouths that are connected with steering hardware with described straight mechanism respectively, described diversion mechanism comprises shunting planet row, described shunting planet row is by having sun wheel, the three-element planetary gear mechanism of gear ring and pinion carrier forms, in described three element, one of them element is the power input element that forms the input end of described diversion mechanism, two other power output element for braking respectively by stop mechanism, two described power output elements have formed two mouths of described diversion mechanism.
Described stop mechanism is hydraulic pressure, air pressure or mechanical type stop mechanism.
The described continuous turning system for continuously tracked vehicle also comprises the left and right planet row that confluxes being in transmission connection with described straight mechanism and steering hardware, confluxes and be fixedly connected with by synchronization structure between the gear ring of planet row in conflux gear ring and the described right side of planet row, a described left side.
Described steering hardware comprises a left side, right double crosslinking gear shaft and respectively with corresponding left, the left side that planet row is in transmission connection of confluxing, the right side, right dual gear, a described left side, right dual gear is arranged on respectively a described left side, on right double crosslinking gear shaft, described steering hardware also comprises a cliding gear that gear transmission is connected can selecting as required with described left dual gear or right dual gear, another meshed transmission gear in another gear in described left dual gear and described right dual gear, a power output element in described cliding gear and described shunting planet row is in transmission connection.
Described cliding gear only revolves and is slidably mounted on described slide teeth wheel shaft.
Between three axis of described cliding gear, left dual gear and right dual gear, be parallel to each other, and spacing between three axis equates between two.
Described straight mechanism comprises the change speed gear box that another power output element in power intake and described shunting planet row is in transmission connection, and the clutch end of described change speed gear box is in transmission connection by gear drive and described synchronization structure.
Described synchronization structure is made up of synchrodrive axle, and the conflux gear ring of planet row of one end of described synchrodrive axle and a described left side is connected, and the other end and the described right side planet row that confluxes is connected.
Described gear drive comprises the output bevel gear being coaxially connected with described synchrodrive axle and the input finishing bevel gear cuter being in transmission connection with the mouth of described change speed gear box, described output bevel gear and described input finishing bevel gear cuter engaged transmission.
Beneficial effect of the present invention is: the diversion mechanism in the present invention is made up of mechanical shunting planet row, uses the diversion mechanism of shunting planet row to have advantages of the high and low cost of manufacture of simple to operate, compact conformation, driving efficiency.When work, the power of driving engine (or other propulsion source) branches to straight mechanism through shunting planet row one tunnel of diversion mechanism, one tunnel branches to steering hardware, in the time that a power output element in shunting planet row is braked completely, straight-line travelling or the pivot stud that can realize respectively continuously tracked vehicle travel; When power output element when braking that two output elements are not braked or are connected with straight mechanism, the continuous turning that can realize continuously tracked vehicle travels.
Further, in the time of cliding gear and left dual gear engaged transmission, left dual gear rotary speed direction is contrary with cliding gear rotary speed direction, right dual gear due to and cliding gear between many one-levels gear transmission, its rotary speed direction is identical with cliding gear rotary speed direction, can realize continuously tracked vehicle left steering and travel; Equally, when cliding gear engages with right dual gear, can realize continuously tracked vehicle right steering and travel.Adopt cliding gear to realize Turning travel, easy to operate, simple in structure, cost of manufacture is lower.
Brief description of the drawings
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the structural representation of reversing-gear in Fig. 1;
Fig. 3 is the lateral plan of Fig. 2.
Detailed description of the invention
For the embodiment of the continuous turning system of continuously tracked vehicle as shown in Fig. 1 ~ 3: comprise diversion mechanism, straight mechanism, reversing-gear and the left and right planet row that confluxes, the left and right planet row that confluxes forms by corresponding planetary gear mechanism.Diversion mechanism comprises shunting planet row 2, shunting planet row 2 is by having shunting sun wheel 2a, the planetary gear mechanism of shunting gear ring 2b and tri-elements of shunting pinion carrier 2c forms, wherein shunt pinion carrier 2c for for corresponding driving engine 1(or other propulsion source) the power input element that is in transmission connection, shunting pinion carrier 2c has formed the input end of diversion mechanism, shunting sun wheel 2a and shunting gear ring 2b are the power output element that is in transmission connection and can brakes respectively by stop mechanism with reversing-gear 4 and straight mechanism 3 respectively, shunting sun wheel 2a and shunting gear ring 2b have formed two mouths of diversion mechanism, stop mechanism is mechanical type stop mechanism.The left gear ring 6b confluxing in planet row 6 in a left side is fixedly connected with by synchronization structure with the right right gear ring 7b confluxing in planet row 7, synchronization structure is made up of the synchrodrive axle 8 being arranged between left gear ring 6b and right gear ring 7b, one end of synchrodrive axle 8 and left gear ring 6b are connected, and the other end and right gear ring 7b are connected.The left pinion carrier 6c confluxing in planet row 6 in a left side and the right right pinion carrier 7c confluxing in planet row 7 are respectively used to power output.Straight mechanism 3 comprises the change speed gear box that power intake and the shunting gear ring 2b in shunting planet row 2 are in transmission connection, change speed gear box is progressive gear transmission, the clutch end of change speed gear box is in transmission connection by gear drive 5 and synchrodrive axle 8, and gear drive 5 comprises the output bevel gear 5-1 being coaxially connected with synchrodrive axle 8 and the input finishing bevel gear cuter 5-2 being in transmission connection with the clutch end of change speed gear box 3.Reversing-gear 4 comprises the cliding gear 4-1 being in transmission connection with the shunting sun wheel 2a of shunting planet row 2, cliding gear 4-1 coaxially only revolves and is slidedly assemblied on slide teeth wheel shaft 4-2, reversing-gear also comprises the left double crosslinking gear shaft 4-3 and the right double crosslinking gear shaft 4-4 that be arranged in parallel with slide teeth wheel shaft 4-2, wherein left, spacing between the axis of right double crosslinking gear shaft and slide teeth wheel shaft 4-2 equates between two, on left double crosslinking gear shaft 4-3, be coaxially fixed with left dual gear 4-5, on right double crosslinking gear shaft 4-4, be coaxially fixed with right dual gear 4-6, wherein left dual gear comprises the first gear 4-5-1 and the second gear 4-5-2, right dual gear comprises the 3rd gear 4-6-1 and the 3rd gear 4-6-2.In the sliding process of cliding gear 4-1 on slide teeth wheel shaft 4-2, can select as required with left dual gear 4-5 in the first gear 4-5-1 or right dual gear 4-6 in the 3rd gear 4-6-1 be in transmission connection, the 4th gear 4-6-2 engaged transmission in the second gear 4-5-2 in left dual gear 4-5 and right dual gear 4-6.Left and right dual gear is also in transmission connection with corresponding left and right sun wheel of confluxing in planet row respectively.In figure, 6a represents the left sun wheel of confluxing in planet row 6 in a left side, and 7c represents the right sun wheel of confluxing in planet row 7 in the right side.
The power of driving engine 1 is flowed into by the shunting pinion carrier 2c that shunts planet row 2, shunting planet row 2 passes to respectively straight mechanism 3 and reversing-gear 4 by shunting gear ring 2b and shunting sun wheel 2a by power, one road power passes to the left and right gear ring confluxing in planet row through straight mechanism 3, and another road passes to left and right sun wheel of confluxing in planet row through reversing-gear.Conflux to the left and right power confluxing in planet row and export through left and right pinion carrier, thereby drive continuously tracked vehicle to travel.The shunting gear ring 2b of shunting planet row 2 and shunting sun wheel 2a can brake respectively.In the time that shunting sun wheel 2a brakes completely, power is all passed to shunting gear ring 2b from the shunting pinion carrier 2c of shunting planet row 2, then flow into and through left and right pinion carrier output of confluxing in planet row, realize the straight-line travelling of continuously tracked vehicle through straight mechanism 3, gear drive 5, the left and right gear ring confluxing in planet row.In the time that shunting gear ring 2b brakes completely, power is all passed to shunting sun wheel 2a from the shunting pinion carrier 2c of shunting planet row 2, then also finally exported by left and right pinion carrier of confluxing in planet row through reversing-gear 4, left and right sun wheel of confluxing in planet row, the pivot stud of realizing continuously tracked vehicle travels.In the time that shunting gear ring 2b, the shunting sun wheel 2a of shunting planet row 2 do not brake, power divides two-way transmission, can realize continuously tracked vehicle Turning radius travel from zero to infinitely-great continuous turning according to the proportionate relationship of two-way power.For reversing-gear, in the time of the first gear 4-5-1 engaged transmission in cliding gear 4-1 and left dual gear 4-5, the rotary speed direction of left dual gear 4-5 is contrary with cliding gear 4-1 rotary speed direction, right dual gear 4-6 due to and cliding gear 4-1 between many one-levels gear transmission, its rotary speed direction is identical with cliding gear 4-1 rotary speed direction, can realize continuously tracked vehicle left steering and travel.Equally, in the time that the 3rd gear 4-6-1 in cliding gear 4-1 and right dual gear 4-6 engages, can realize continuously tracked vehicle right steering and travel.By the use of the mechanical type mechanisms such as shunting planet row 2 and cliding gear 4-1, make the whole continuous turning system for continuously tracked vehicle there is the advantages such as the high and low cost of manufacture of simple to operate, compact conformation, driving efficiency.
In other embodiments of the invention, can also adopt shunting sun wheel 2a and straight mechanism 3 to be in transmission connection, to shunt the form that gear ring 2b and reversing-gear 4 are in transmission connection; Certainly the shunting sun wheel 2a in shunting planet row 2, shunting gear ring 2b, the three-element use of shunting pinion carrier 2c can also be: shunting sun wheel 2a is power input element, shunting gear ring 2b and shunting pinion carrier 2c are power output element, now shunting gear ring 2b can be in transmission connection with straight mechanism 3 or reversing-gear 4, and shunting accordingly gear ring 2b can be in transmission connection with reversing-gear 4 or straight mechanism 3.Or shunting gear ring 2b is power input element, shunting sun wheel 2a and shunting pinion carrier 2c are power output element, now shunting sun wheel 2a can be in transmission connection with straight mechanism 3 or reversing-gear 4, and shunting accordingly pinion carrier 2c can be in transmission connection with reversing-gear 4 or straight mechanism 3.Stop mechanism can also adopt fluid pressure type or pneumatic brake mechanism; Change speed gear box also can adopt stepped transmission case.
Claims (7)
1. the continuous turning system for continuously tracked vehicle, comprise diversion mechanism, straight mechanism and steering hardware, described diversion mechanism has input end for being connected with corresponding propulsion source and two mouths that are connected with steering hardware with described straight mechanism respectively, it is characterized in that: described diversion mechanism comprises a shunting planet row, described shunting planet row is by having sun wheel, the three-element planetary gear mechanism of gear ring and pinion carrier forms, in described three element, one of them element is the power input element that forms the input end of described diversion mechanism, two other power output element for braking respectively by stop mechanism, two described power output elements have formed two mouths of described diversion mechanism, the described continuous turning system for continuously tracked vehicle also comprises the left side being in transmission connection with described straight mechanism and steering hardware, planet row confluxes on the right side, conflux and be fixedly connected with by synchronization structure between the gear ring of planet row in conflux gear ring and the described right side of planet row, a described left side, described steering hardware comprises a left side, right double crosslinking gear shaft and respectively with corresponding left, the left side that planet row is in transmission connection of confluxing, the right side, right dual gear, a described left side, right dual gear is arranged on respectively a described left side, on right double crosslinking gear shaft, described steering hardware also comprises a cliding gear that gear transmission is connected can selecting as required with described left dual gear or right dual gear, another meshed transmission gear in another gear in described left dual gear and described right dual gear, a power output element in described cliding gear and described shunting planet row is in transmission connection.
2. the continuous turning system for continuously tracked vehicle according to claim 1, is characterized in that: described stop mechanism is hydraulic pressure, air pressure or mechanical type stop mechanism.
3. the continuous turning system for continuously tracked vehicle according to claim 1, is characterized in that: described cliding gear only revolves and is slidably mounted on described slide teeth wheel shaft.
4. the continuous turning system for continuously tracked vehicle according to claim 1, is characterized in that: between three axis of described cliding gear, left dual gear and right dual gear, be parallel to each other, and spacing between three axis equates between two.
5. according to the continuous turning system for continuously tracked vehicle described in claim 1～4 any one, it is characterized in that: described straight mechanism comprises the change speed gear box that another power output element in power intake and described shunting planet row is in transmission connection, the clutch end of described change speed gear box is in transmission connection by gear drive and described synchronization structure.
6. the continuous turning system for continuously tracked vehicle according to claim 5, it is characterized in that: described synchronization structure is made up of synchrodrive axle, the conflux gear ring of planet row of one end of described synchrodrive axle and a described left side is connected, and the other end and the described right side planet row that confluxes is connected.
7. the continuous turning system for continuously tracked vehicle according to claim 6, it is characterized in that: described gear drive comprises the output bevel gear being coaxially connected with described synchrodrive axle and the input finishing bevel gear cuter being in transmission connection with the mouth of described change speed gear box described output bevel gear and described input finishing bevel gear cuter engaged transmission.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210047643.2A CN102582685B (en) | 2012-02-28 | 2012-02-28 | Stepless steering system for crawler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210047643.2A CN102582685B (en) | 2012-02-28 | 2012-02-28 | Stepless steering system for crawler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102582685A CN102582685A (en) | 2012-07-18 |
| CN102582685B true CN102582685B (en) | 2014-08-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210047643.2A Expired - Fee Related CN102582685B (en) | 2012-02-28 | 2012-02-28 | Stepless steering system for crawler |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103434567B (en) * | 2013-08-21 | 2016-01-13 | 河南科技大学 | Continuously tracked vehicle craspedodrome, rotating direction control method and steering hardware and continuous turning system |
| CN104943745B (en) * | 2015-06-26 | 2017-07-18 | 湖南农夫机电有限公司 | Caterpillar band self-propelled farm machinery hydraulic control differential steering system |
| CN110541921A (en) * | 2018-05-28 | 2019-12-06 | 罗灿 | Double-flow hundred-direction driver |
| CN108995710A (en) * | 2018-07-17 | 2018-12-14 | 徐工集团工程机械有限公司 | A kind of hydraulic mechanical endless-track vehicle two power flow steering mechanism |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB598189A (en) * | 1944-03-14 | 1948-02-12 | Industrikompaniet Ab | Driving and steering mechanism for vehicles, especially of the endless track type |
| GB803713A (en) * | 1955-03-23 | 1958-10-29 | Milorad Petrovitch | Improved transmission system for endless-track vehicles |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4570418B2 (en) * | 2003-09-16 | 2010-10-27 | 株式会社小松製作所 | Control device for hydraulic-mechanical transmission |
| CN202574366U (en) * | 2012-02-28 | 2012-12-05 | 河南科技大学 | Stepless steering system for caterpillar vehicle |
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2012
- 2012-02-28 CN CN201210047643.2A patent/CN102582685B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB598189A (en) * | 1944-03-14 | 1948-02-12 | Industrikompaniet Ab | Driving and steering mechanism for vehicles, especially of the endless track type |
| GB803713A (en) * | 1955-03-23 | 1958-10-29 | Milorad Petrovitch | Improved transmission system for endless-track vehicles |
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| CN102582685A (en) | 2012-07-18 |
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