CN205916189U - Auto -lock differential formula track driving -steering system - Google Patents
Auto -lock differential formula track driving -steering system Download PDFInfo
- Publication number
- CN205916189U CN205916189U CN201620630776.6U CN201620630776U CN205916189U CN 205916189 U CN205916189 U CN 205916189U CN 201620630776 U CN201620630776 U CN 201620630776U CN 205916189 U CN205916189 U CN 205916189U
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- gear
- input shaft
- steering
- steering system
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Abstract
The utility model discloses an auto -lock differential formula track driving -steering system, which comprises a frame, rack -mounted power input shaft and rack -mounted main shaft, planetary geared output mechanism is installed respectively at the both ends of main shaft, power input shaft links to each other with the main shaft through a drive mechanism, planetary geared output mechanism includes the sun gear, the ring gear, planet carrier and planet wheel, be connected with the output shaft on the planet carrier, track driving -steering system still including the synchronous and antiport of the ring gear that is used for driving two planetary geared output mechanism from locking -type driving -steering device. Advantages such as this auto -lock differential formula track driving -steering system has simple structure, easily preparation, job stabilization is reliable, cornering ability good, mobility and flexibility height.
Description
Technical field
This utility model is related to crawler-type traveling equipment technical field and in particular to a kind of self-lock differential formula crawler belt turns to drive
Dynamic system.
Background technology
Crawler belt steering mechanism common at present can be divided into purely mechanic driving steering mechanism, pure hydraulic-driven steering mechanism and
Hydraulic machinery combines driving steering mechanism three major types.
Purely mechanic driving steering mechanism mainly have steering clutch and brake formula steering mechanism, single-pinion planetary gear steering mechanism,
Single differential mechanism steering mechanism, double differectial steering mechanism etc. are several.Wherein, 1, turn to clutch and brake formula steering mechanism in certain side
When steering cluth partially or fully separates, just can cut off or reduce the power that this side drive wheel transmitted with torque so that
Vehicular turn.The degree of clutch separation determines the size of turning radius.This mechanism is simple, easily manufactured due to structure,
Extensive utilization has been obtained on the middle-size and small-size caterpillar tractor, bull-dozer of early stage, but fixing the turning of this mechanism only one of which
To radius, if necessary to other turning radius, the element frictional damping in mechanism must be leaned on to realize, both life-spans of reducing mechanism
Power has been lost, the power with endless-track vehicle constantly increases, this systematic difference will have significant limitation again.2nd, single-stage
The working condition of planetary steering device is similar with steering cluth, passes to the moment of torsion of central transmission, through the single-stage of both sides
Planetary mechanism passes to driving wheel, and changing left and right sides by control brake makes Vehicular turn.This mechanism wearability is high, mechanism
Compact dimensions, service free, and only one of which degree of freedom, the straight-line travelling ability of endless-track vehicle can be improved, but due to it
Structure is very complicated, so only being applied on powerful heavy vehicle.3rd, the structure of single differential mechanism steering mechanism simple and
And wear-resisting, but required power when turning to can be very big, beyond the Power Limitation of conventional engine, and accidentally will put out
Fire.Therefore this mechanism is almost no longer used in endless-track vehicle now.4th, double differectial steering mechanism can make endless-track vehicle turn
To when average speed do not reduce, and compact conformation, long service life.But its can not so that a certain side is completely braked,
So vehicle cannot be turned in original place, turn to ride comfort poor.
Pure hydraulic-driven compared with Mechanical Driven, have the advantages that can infinitely variable speeds, flexible configuration, but its cost ratio
Mechanical Driven is high, efficiency is lower than mechanically operated.Current hydraulic technique ability can't obtain power and meet duty requirements
And the outstanding Hydraulic Elements of performance, efficiency deficiency becomes the first obstruction of pure hydraulic-driven steering mechanism development.
It is two power flow steering mechanism it is simply that being divided into its power after electromotor that mechanical-hydraulic combines driving steering mechanism
Turn to and speed change two-way transmits side by side.When fluid-link steering governing system does not work, the driving wheel speed size phase of both sides crawler belt
Identical, the endless-track vehicle straight-line travelling in, direction.When fluid-link steering governing system and change speed gear box transmit work(to two side drive wheel simultaneously
During rate, because the hydraulic pump discharge of fluid-link steering governing system is adjustable, therefore driver can be adjusted at random by the road surface of different curvature
The discharge capacity of whole hydraulic pump and flow direction, according to the difference of hydraulic motor output speed, vehicle can carry out being taken office by minimum turning radius
The left and right divertical motion of meaning turning radius, has infinite multiple turning radius, achievable continuous turning.This steering mechanism overcomes
Many shortcomings of traditional mechanical formula steering mechanism, no power loss during steering, combine mechanical high efficiency with and hydraulic pressure
The flexible infinitely variable speeds of formula.
Need increasing power, the requirement also more and more higher of its steer ability with caterpillar.Traditional
Mechanical-type steering engine structure has that power loss during steering is big, turning track difficult control the shortcomings of, pure fluid pressure type steering mechanism deposits
In the low deficiency of efficiency, its use requirement cannot be met.Speed can stepless change the double power of hydraulic machinery joint
Stream differential steering drive system, can significantly lift the efficiency of the motility when turning to for the caterpillar and work, nowadays
Just progressively replacing traditional Purely mechanical driving and steering system.
Utility model content
The technical problems to be solved in the utility model is to overcome the shortcomings of that prior art exists, provide a kind of structure simple,
It is easy to make, stable and reliable in work, steering behaviour is good, mobility and the high self-lock differential formula crawler belt of motility turn to drivetrain
System.
For solving above-mentioned technical problem, this utility model employs the following technical solutions:
A kind of self-lock differential formula crawler belt driving and steering system, including frame, rack-mounted power input shaft and peace
It is contained in the main shaft in frame, the two ends of described main shaft are separately installed with planetary gear type output mechanism, described power input shaft leads to
Cross the first drive mechanism to be connected with main shaft, described planetary gear type output mechanism includes sun gear, ring gear, planet carrier and planet
Wheel, described planet carrier is connected with output shaft, and described crawler belt driving and steering system is also included for driving two planetary gear types
The synchronous and counter-rotational self-locking steer-drive of the ring gear of output mechanism.
Above-mentioned self-lock differential formula crawler belt driving and steering system is it is preferred that described self-locking steer-drive is included no
Level speed governing rotary drive and steering input shaft, described stepless speed regulation rotary drive passes through worm-and-wheel gear and turns to input
Axle is connected, and described steering input shaft is connected with the ring gear of a planetary gear type output mechanism by the second drive mechanism, institute
State steering input shaft to be connected with the ring gear of another planetary gear type output mechanism by the 3rd drive mechanism.
Above-mentioned self-lock differential formula crawler belt driving and steering system is it is preferred that described worm-and-wheel gear includes cooperating
Worm gear and worm screw, described worm gear be arranged on steering input shaft on, described worm screw is connected with stepless speed regulation rotary drive.
Above-mentioned self-lock differential formula crawler belt driving and steering system is it is preferred that described second drive mechanism includes being installed on turns
To the first gear on input shaft and the first external toothing being fixedly arranged on corresponding ring gear, described first gear passes through second gear
It is connected with described first external toothing；Described 3rd drive mechanism includes being installed on the 3rd gear turning on input shaft and is fixedly arranged on
The second external toothing on corresponding ring gear, described 3rd gear passes sequentially through the 4th gear and the 5th gear and described second external tooth
Circle is connected.
Above-mentioned self-lock differential formula crawler belt driving and steering system is it is preferred that described stepless speed regulation rotary drive is hydraulic pressure
Motor.
Above-mentioned self-lock differential formula crawler belt driving and steering system is it is preferred that described first drive mechanism includes engaging each other
Input gear and output gear, described input gear is installed on main shaft, and described output gear is installed on power input shaft.
Compared with prior art, the utility model has the advantage of: self-lock differential formula crawler belt of the present utility model turns to and drives
Dynamic system, by power input shaft to main shaft input power, drives two planetary gear types defeated by self-locking steer-drive
Go out the ring gear synchronization of mechanism and rotate backward, the rotating speed of side output shaft can be increased, reduce opposite side output shaft simultaneously
Rotating speed, so that two side drive wheel differentials, vehicle is to the steering of certain side.This self-lock differential formula crawler belt driving and steering system is turning
Continuous power is transmitted to left and right crawler belt with higher speed by Xiang Shineng, makes two crawler belts all the time while not reducing average speed
Power transmission；Meanwhile, utilize the self-locking property of self-locking steer-drive when not turning to, vehicle can be greatly improved and keep straight trip
Ability.Compared to traditional clutch-brake formula steering mechanism, its steering characteristic is more superior, and steering behaviour is good, turns to half
Footpath is big, and mobility and motility are high, and have the advantages that structure is simple, be easy to make and assemble, stable and reliable in work.
Brief description
Fig. 1 is the main sectional view of self-lock differential formula crawler belt driving and steering system.
Fig. 2 is a a sectional view in Fig. 1.
Fig. 3 is the schematic diagram of self-lock differential formula crawler belt driving and steering system.
Marginal data:
1st, power input shaft；2nd, main shaft；3rd, planetary gear type output mechanism；31st, sun gear；32nd, ring gear；33rd, planet
Frame；34th, planetary gear；4th, the first drive mechanism；41st, input gear；42nd, output gear；5th, output shaft；6th, self-locking turns to and drives
Device；61st, turn to input shaft；62nd, worm gear；63rd, worm screw；64th, first gear；65th, the first external toothing；66th, second gear；67、
3rd gear；68th, the second external toothing；69th, the 4th gear；610th, the 5th gear；100th, frame.
Specific embodiment
Below in conjunction with the drawings and specific embodiments, this utility model is described in further detail.
As shown in Figure 1 to Figure 3, the self-lock differential formula crawler belt driving and steering system of the present embodiment, including frame 100, installs
In the power input shaft 1 in frame 100 and the main shaft 2 being installed in frame 100, the two ends of main shaft 2 are separately installed with a row
Star gear type output mechanism 3, power input shaft 1 is connected with main shaft 2 by the first drive mechanism 4, planetary gear type output mechanism 3
Including sun gear 31, ring gear 32, planet carrier 33 and planetary gear 34, wherein, sun gear 31 is fixedly mounted on main shaft 2, internal tooth
Circle 32 may be rotatably mounted on main shaft 2, and planetary gear 34 cooperation is arranged between sun gear 31 and ring gear 32, planet carrier 33 and row
Star-wheel 34 is connected, and planet carrier 33 is connected with output shaft 5, and the power of power input shaft 1 output is transferred to through the first drive mechanism 4
After main shaft 2, it is transferred to the output shaft 5 of both sides respectively by two planetary gear type output mechanisms 3, crawler belt driving and steering system is also
Turn to including the synchronous and counter-rotational self-locking of ring gear 32 for driving two planetary gear type output mechanisms 3 and drive dress
Put 6.Drive the ring gear 32 of two planetary gear type output mechanisms 3 synchronous and reverse during self-locking steer-drive 6 action
Rotate, make the output speed differential of two output shafts 5, and then endless-track vehicle can be made to turn to, self-locking steer-drive 6 is motionless
When making, itself has auto-lock function, makes two ring gears 32 keep fixing.
In the present embodiment, self-locking steer-drive 6 includes stepless speed regulation rotary drive and turns to input shaft 61, no
Level speed governing rotary drive passes through worm-and-wheel gear and is connected with turning to input shaft 61, turns to input shaft 61 and passes through the second driver
Structure is connected with the ring gear 32 of a planetary gear type output mechanism 3, turn to input shaft 61 pass through the 3rd drive mechanism with another
The ring gear 32 of individual planetary gear type output mechanism 3 is connected.The power of stepless speed regulation rotary drive output is through worm and gear machine
Structure is transferred to turn to input shaft 61, then drives two planetary gear types defeated by the second drive mechanism and the 3rd drive mechanism respectively
Go out ring gear 32 synchronization of mechanism 3 and rotate backward；When stepless speed regulation rotary drive does not export power, due to worm and gear
Ring gear 32 can be locked motionless by the latching characteristics of mechanism.
Specifically, second drive mechanism of the present embodiment includes being installed on the first gear 64 turning on input shaft 61 and consolidates
The first external toothing 65 on corresponding ring gear 32, first gear 64 is connected with the first external toothing 65 by second gear 66,
Namely first gear 64, second gear 66 and the first external toothing 65 engage successively, the power turning to input shaft 61 is transferred to the
One external toothing 65；3rd drive mechanism includes being installed on the 3rd gear 67 turning on input shaft 61 and is fixedly arranged on corresponding ring gear
The second external toothing 68 on 32, the 3rd gear 67 passes sequentially through the 4th gear 69 and the 5th gear 610 and the second external toothing 68 phase
Connect, namely the 3rd gear 67, the 4th gear 69, the 5th gear 610 and the second external toothing 68 engage successively, will turn to input shaft 61
Power be transferred to the second external toothing 68.And because first gear 64 only transfers a torque to the first external tooth by a gear
Circle 65, and the 3rd gear 67 is to pass sequentially through two gears to transfer a torque to the second external toothing 68, the therefore second external toothing 68
Steering contrary with the steering of the first external toothing 65.The concrete scheme of the present embodiment second drive mechanism and the 3rd drive mechanism can
So that the steering of worm screw 63 is consistent with the actual direction controlling walking, simultaneously facilitate more preferable adjustment and turn to input shaft 61 and main shaft
The distance between 2.In other embodiments it is also possible to save the first gear 64 in the second drive mechanism and the 3rd drive mechanism
In the 5th gear 610, be equally capable of driving the first external toothing 65 and the second external toothing 68 synchronization and rotating backward.
Above-mentioned second gear 66, the 4th gear 69 and the 5th gear 610 are installed in frame 100 by rotating shaft respectively.The
One gear 64, the equal diameters of the 3rd gear 67, the equal diameters of second gear 66 and the 5th gear 610, the first external toothing 65
Diameter and the second external toothing 68 equal diameters.
Above-mentioned worm-and-wheel gear includes the worm gear 62 cooperating and worm screw 63, and worm gear 62 is arranged on steering input shaft 61
On, worm screw 63 is connected with stepless speed regulation rotary drive.
In the present embodiment, stepless speed regulation rotary drive is hydraulic motor, compared to the transfer of traditional common, self-locking
The stepless speed regulation rotary drive of differential speed type crawler belt driving and steering system adopts after hydraulic motor it is achieved that machine liquid dual control, both more
The shortcoming having mended mechanical type steering power loss, solves the low efficiency problem of fluid pressure type steering again, can be significantly
Improve transaction capabilities.In other embodiments, stepless speed regulation rotary drive can also adopt other can be with the drive of stepless speed regulation
Moving part.
In the present embodiment, the first drive mechanism 4 includes intermeshing input gear 41 and output gear 42, input gear
41 are installed on main shaft 2, and output gear 42 is installed on power input shaft 1, and the power of power input shaft 1 output is through output gear
42 and input gear 41 be transferred to main shaft 2.
The operation principle of the self-lock differential formula crawler belt driving and steering system of the present embodiment is as follows:
Self-lock differential formula crawler belt driving and steering system has two-way power input, ultromotivity input shaft 1(change speed gear box of coming),
Another road is derived from stepless speed regulation rotary drive (hydraulic motor).
When power input shaft 1 input power, and when hydraulic motor does not start, due to the latching characteristics of worm and gear, internal tooth
Circle 32 is locked motionless, and power exports through the first drive mechanism 4, main shaft 2, sun gear 31, planetary gear 34 and output shaft 5 successively.
The parameters such as the rotating speed of both sides output shaft 5 output are identical, endless-track vehicle straight-line travelling.
When hydraulic motor input power, and power input shaft 1 not input power (change speed gear box is in neutral gear) when, power is through worm gear
Worm mechanism is transferred to turn to input shaft 61, and a part of power is successively through the second drive mechanism, main shaft 2, sun gear 31, planetary gear
34 and the output shaft 5 of side export, another part power is successively through the 3rd drive mechanism, main shaft 2, sun gear 31, planetary gear 34
Export with the output shaft 5 of opposite side.The parameters such as the rotating speed of now both sides output shaft 5 output are equal in magnitude, torsional direction is contrary, carry out
Band vehicle carries out pivot stud.
When power input shaft 1 and hydraulic motor are simultaneously entered power, in the power drive endless-track vehicle of power input shaft 1
On the basis of form of straight lines, the power of hydraulic motor changes the speed of two ring gears 32, and the speed of two ring gears 32 is proper
Good equal in magnitude, in opposite direction, thus realize both sides output shaft 5 differential rotating, endless-track vehicle turns in traveling simultaneously.Hydraulic pressure horse
The size reaching input speed determines vehicle turn radius and turning speed.
The self-lock differential formula crawler belt driving and steering system of the present embodiment compared to traditional clutch-brake formula steering mechanism,
It enables infinitely variable speeds, unpowered loss, and steering characteristic is more superior, and steering characteristic can be good, and turning radius is big, motor-driven spirit
Live, and worm and gear has the effect of differential lock, improve the performance of vehicle straight trip.Combined using mechanical-hydraulic, will turn to
Unite two into one with differential, reduction of speed increases torsion to a certain extent simultaneously, the clutch type steering mechanism that this is also traditional is unable to reach
's.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model is not limited merely to
Above-described embodiment.To those of ordinary skill in the art, gained under the premise of without departing from this utility model technology design
To modifications and variations also should be regarded as protection domain of the present utility model.
Claims (6)
1. a kind of self-lock differential formula crawler belt driving and steering system, including frame (100), the power that is arranged in frame (100) defeated
Enter axle (1) and the main shaft (2) being arranged in frame (100), the two ends of described main shaft (2) are separately installed with planetary gear type output
Mechanism (3), described power input shaft (1) is connected with main shaft (2) by the first drive mechanism (4), described planetary gear type output
Mechanism (3) includes sun gear (31), ring gear (32), planet carrier (33) and planetary gear (34), and described planet carrier (33) is upper to be connected
Have output shaft (5) it is characterised in that: described crawler belt driving and steering system is also included for driving two planetary gear types to export machines
The synchronous and counter-rotational self-locking steer-drive of the ring gear (32) (6) of structure (3).
2. self-lock differential formula crawler belt driving and steering system according to claim 1 it is characterised in that: described self-locking turns to
Driving means (6) include stepless speed regulation rotary drive and turn to input shaft (61), and described stepless speed regulation rotary drive passes through
Worm-and-wheel gear is connected with turning to input shaft (61), and described steering input shaft (61) passes through the second drive mechanism and a planet
The ring gear (32) of gear type output mechanism (3) is connected, described steering input shaft (61) pass through the 3rd drive mechanism and another
The ring gear (32) of planetary gear type output mechanism (3) is connected.
3. self-lock differential formula crawler belt driving and steering system according to claim 2 it is characterised in that: described worm and gear machine
Structure includes the worm gear (62) cooperating and worm screw (63), and described worm gear (62) is arranged in steering input shaft (61), described snail
Bar (63) is connected with stepless speed regulation rotary drive.
4. self-lock differential formula crawler belt driving and steering system according to claim 2 it is characterised in that: described second driver
Structure includes being installed on first gear (64) and the first external tooth being fixedly arranged on corresponding ring gear (32) turning on input shaft (61)
Circle (65), described first gear (64) is connected with described first external toothing (65) by second gear (66)；Described 3rd transmission
Mechanism includes being installed on outside the 3rd gear (67) turning on input shaft (61) and be fixedly arranged on corresponding ring gear (32) second
Gear ring (68), described 3rd gear (67) passes sequentially through the 4th gear (69) and the 5th gear (610) and described second external toothing
(68) it is connected.
5. self-lock differential formula crawler belt driving and steering system according to claim 2 it is characterised in that: described stepless speed regulation rotation
Turning actuator is hydraulic motor.
6. self-lock differential formula crawler belt driving and steering system according to claim 1 it is characterised in that: described first driver
Structure (4) includes intermeshing input gear (41) and output gear (42), and described input gear (41) is installed on main shaft (2)
On, described output gear (42) is installed on power input shaft (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620630776.6U CN205916189U (en) | 2016-06-24 | 2016-06-24 | Auto -lock differential formula track driving -steering system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620630776.6U CN205916189U (en) | 2016-06-24 | 2016-06-24 | Auto -lock differential formula track driving -steering system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205916189U true CN205916189U (en) | 2017-02-01 |
Family
ID=57876986
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620630776.6U Withdrawn - After Issue CN205916189U (en) | 2016-06-24 | 2016-06-24 | Auto -lock differential formula track driving -steering system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205916189U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080772A (en) * | 2016-06-24 | 2016-11-09 | 湖南农业大学 | Self-lock differential formula crawler belt driving and steering system |
| CN108725728A (en) * | 2018-07-26 | 2018-11-02 | 费先江 | A kind of working method of the surface propulsion system turned to using differential speed type |
| CN109058412A (en) * | 2018-09-06 | 2018-12-21 | 张祝 | A kind of variable speed drive approach that endless-track vehicle double fluid turns to |
-
2016
- 2016-06-24 CN CN201620630776.6U patent/CN205916189U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106080772A (en) * | 2016-06-24 | 2016-11-09 | 湖南农业大学 | Self-lock differential formula crawler belt driving and steering system |
| CN106080772B (en) * | 2016-06-24 | 2018-11-20 | 湖南农业大学 | Self-lock differential formula crawler belt driving and steering system |
| CN108725728A (en) * | 2018-07-26 | 2018-11-02 | 费先江 | A kind of working method of the surface propulsion system turned to using differential speed type |
| CN109058412A (en) * | 2018-09-06 | 2018-12-21 | 张祝 | A kind of variable speed drive approach that endless-track vehicle double fluid turns to |
| CN109058412B (en) * | 2018-09-06 | 2021-01-29 | 苏州萨伯工业设计有限公司 | Variable-speed transmission method for double-flow steering of tracked vehicle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170201 Effective date of abandoning: 20181120 |
|
| AV01 | Patent right actively abandoned |