CN106184365B - Endless-track vehicle steering control mechanism - Google Patents
Endless-track vehicle steering control mechanism Download PDFInfo
- Publication number
- CN106184365B CN106184365B CN201610758807.0A CN201610758807A CN106184365B CN 106184365 B CN106184365 B CN 106184365B CN 201610758807 A CN201610758807 A CN 201610758807A CN 106184365 B CN106184365 B CN 106184365B
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- bolt
- spring
- torsional spring
- steering
- bearing
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
- B62D11/001—Steering non-deflectable wheels; Steering endless tracks or the like control systems
- B62D11/005—Hydraulic control systems
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D1/00—Steering controls, i.e. means for initiating a change of direction of the vehicle
- B62D1/02—Steering controls, i.e. means for initiating a change of direction of the vehicle vehicle-mounted
- B62D1/04—Hand wheels
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D11/00—Steering non-deflectable wheels; Steering endless tracks or the like
- B62D11/001—Steering non-deflectable wheels; Steering endless tracks or the like control systems
- B62D11/006—Mechanical control systems
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/02—Steering gears mechanical
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62D—MOTOR VEHICLES; TRAILERS
- B62D3/00—Steering gears
- B62D3/14—Steering gears hydraulic
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
Endless-track vehicle steering control mechanism, comprising: steering mechanism, planetary mechanism transmission device and cam disc and hydraulic pilot valve gear；Steering mechanism with planetary mechanism transmission device by being attached at three, at first: connection spline housing；At second: pin shaft；At third: being attached with bolt by the connecting hole of bearing piece, left and right bracket；Planetary mechanism transmission device passes through at two and the connection of cam disc and hydraulic pilot valve gear, at first: positioning axially through drive shaft spacer, and is locked with setting-up piece, third bolt；It is positioned radial through third flat key；At second: being fixed on pedestal by the 4th bolt.Under the conditions of turning to resistance changeable in endless-track vehicle traveling, solve the problems, such as the controllable of its turning radius, drive safety is improved, the centering capacity of its farm work is improved, saves the subsidiary operation time at its edge of a field, effectively increase the production efficiency of farm work.
Description
Technical field
The invention belongs to endless-track vehicle fields, are related to a kind of endless-track vehicle steering control mechanism.
Background technique
Currently, what the steering of conventional track tractor generallyd use is steering cluth structure, there are mainly two types of operations
Mode: the first, steering linkage is fully withdrawn, and steering cluth is kept completely separate, and is braked to slower-moving track, at this time turning half
The gauge that diameter is 0.5 times；Second, two side brakes are totally released, and side steering cluth is partially or wholly separated at a slow speed, are turned to
Torque is generated by the difference of host high, low speed side track drive power, turning radius and the two sides crawler belt moment of resistance (driving moment with
Two sides crawler belt moment of resistance numerical value equal direction is opposite) be it is self-reacting, value is by surface condition, main machine structure quality, geometry
The factors such as parameter influence, and same steering linkage position, turning radius is uncertain.In addition, the steering linkage row of very little
Journey can cause the variation that steering cluth pressing force in side is very big at a slow speed, and low speed side track drive power can accordingly generate great changes.
So the accurate control of the turning radius under steering resistence contingent condition can not be solved by steering cluth pull rod.With shoe
Raising with tractor speed, the requirement that field correction steering when steering behaviour needs to meet farm work, the edge of a field turn to,
And turning radius require it is controllable, in the case of also meeting high speed transition, steering safety requirements when driving, the steering of tractor
Ability directly will affect the centering capacity of its farm work, influence the subsidiary operation time at the tractor edge of a field, to tractor field
The production efficiency of operation generates significant impact.Therefore, developing one kind may be implemented endless-track vehicle turning radius and steering wheel angle
The handling maneuver structure changed linearly, guarantees the steering of tractor safety and steady, is securely and reliably used with to meet tractor
It is required that.
Summary of the invention
Endless-track vehicle turning radius may be implemented it is an object of that present invention to provide one kind to change linearly with steering wheel angle
Handling maneuver structure.
The technical scheme is that endless-track vehicle steering control mechanism, comprising: steering mechanism, planetary mechanism transmission dress
It sets and cam disc and hydraulic pilot valve gear；Steering mechanism with planetary mechanism transmission device by being attached at three, at first:
Connect spline housing；At second: the second pin shaft；At third: being attached with bolt by the connecting hole of bearing piece, left and right bracket；Row
Star mechanism transmission device is by the connection at two with cam disc and hydraulic pilot valve gear, at first: axially through drive shaft every
Set positioning, and locked with setting-up piece, third bolt；It is positioned radial through third flat key；At second: passing through the 4th bolt
It is fixed on pedestal.
Steering mechanism, comprising: steering wheel, turns to column, turning support, Zuo Zhier, connecting shaft, company at height adjustment knob
Connect spline housing, gas spring, gas spring mandril, the first nut, bearing piece, gas spring contact, spring catch, handle strut, screw, adjustment
Handle, the second connection bolt, right trunnion；Wherein: it is affixed to turn to column, turning support, Zuo Zhier and right trunnion；Connect spline housing
It is socketed in connecting shaft；Handle strut is connected by screw to adjustment handle；Handle strut is hinged by spring catch with bearing piece；Gas
Spring spindle is connected through a screw thread with bearing piece, and by the first nut check, as the associate member of gas spring, gas spring passes through second
It connects bolt and Zuo Zhier, right trunnion is hinged；Steering wheel, height adjustment knob are sequentially placed into the upper end for turning to column.
Planetary mechanism transmission device, comprising: input shaft, the first bolt, input shaft spacer, sun gear fixed circlip, planet
End bearing, driving front end before frame fixed circlip, left and right bracket, gear ring, planet carrier, gag lever post, rotating bar, torsional spring, pedestal, driving
Block plate, the first flat key, spring catch, second after block plate, drive shaft, front limit bar, branch pipe, torsional spring before circlip, the second nut, torsional spring
Flat key, the first pin shaft, planetary gear, the second bolt, sun gear, upper cover, driving rear end bearing, cover board, bearing fixed circlip, stand
And second pin shaft；Wherein: gear ring, pedestal and branch pipe are affixed；Left and right bracket, upper cover and stand are affixed；Gear ring passes through the second bolt
It is connected as one with upper cover；Driving rear end bearing is installed in upper cover；Cover board is connected by the first bolt with upper cover；Before driving
End bearing is mounted on the base；Drive shaft is installed in the preceding end bearing of driving, is passed through planet carrier fixed circlip, the first flat key, is turned round
Block plate and planet carrier, rotating bar fix as one after block plate, torsional spring before spring；Sun gear passes through the second flat key, input shaft spacer, too
Sun wheel fixed circlip is fixed on input shaft；Input shaft is carried out axial by cover board, driving rear end bearing and bearing fixed circlip
Positioning；Planetary gear is installed in planet carrier by the first pin shaft, and carries out axially position by spring catch；Gag lever post, front limit
Bar is assembled from base end, and is fixed with the second nut；Torsion spring set on the driving shaft, is mounted on before torsional spring block plate after block plate, torsional spring
Between, both ends are contacted with gag lever post, rotating bar respectively.
Cam disc and hydraulic pilot valve gear, comprising: setting-up piece, third bolt, third flat key, drive shaft spacer, convex
Wheel disc, hydraulic pilot valve, pilot valve handle head, pilot valve handle, the 4th bolt；Wherein: pilot valve handle head, pilot valve handle
For the affiliated part of hydraulic pilot valve；Production has helix card slot on cam disc, and pilot valve handle head is placed in card slot.
The present invention can reach following the utility model has the advantages that may be implemented to carry out the present invention provides one kind afterwards by adopting the above technical scheme
With the handling maneuver structure that Vehicular turn radius and steering wheel angle change linearly, steering resistence can in endless-track vehicle traveling
It under the conditions of change, solves the problems, such as the controllable of its turning radius, improves the centering capacity of its farm work, saves its edge of a field
Subsidiary operation time effectively increases the production efficiency of farm work；Complete machine matching is beautiful, improves driving environment, improves
Driver comfort, more improves the drive safety of vehicle.
Detailed description of the invention
Fig. 1 is the schematic view of the front view of endless-track vehicle steering control mechanism of the present invention；
Fig. 2 is steering mechanism's assembling schematic diagram of endless-track vehicle steering control mechanism of the present invention；
Fig. 3 is the planetary mechanism assembling schematic diagram of endless-track vehicle steering control mechanism of the present invention；
Fig. 4 is the torsional spring assembling schematic diagram of endless-track vehicle steering control mechanism of the present invention；
Fig. 5 is the cam disc and hydraulic pilot valve assembling schematic diagram of endless-track vehicle steering control mechanism of the present invention；
Fig. 6 is the C of Fig. 5 to schematic diagram.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings.
As shown in Figure 1, steering control mechanism, comprising: steering mechanism 1, planetary mechanism transmission device 2 and cam disc and hydraulic
3 three parts of guide's valve gear composition.
As shown in Fig. 2, steering mechanism 1, comprising: steering wheel 4, turns to column 6, turning support 7, a left side at height adjustment knob 5
Trunnion 8, connecting shaft 9, connection spline housing 10, gas spring 11, gas spring mandril 12, the first nut 13, bearing piece 14, gas spring contact
15, spring catch 16, handle strut 17, screw 18, adjustment handle 19, second connect bolt 20, right trunnion 21.Wherein: turning to vertical
Column 6, turning support 7, Zuo Zhier 8 and right trunnion 21 are affixed；Connection spline housing 10 is socketed in connecting shaft 9；Handle strut 17 with
Adjustment handle 19 is connected by screw 18；Handle strut 17 and bearing piece 14 are hinged by spring catch 16；Gas spring mandril 12 and branch
Block 14 is connected through a screw thread, and is locked by the first nut 13, and as the associate member of gas spring 11, gas spring 11 passes through the second connection
Bolt 20 and left trunnion 8, right trunnion 21 are hinged；Steering wheel 4, height adjustment knob 5 are sequentially placed into the upper end for turning to column 6.Side
Highly adjust to disk 4: left-handed release height adjustment knob 5 can adjust the height of steering wheel 4, after the adjustment rotation of dextrorotation height
Button 5 can lock the position of steering wheel 4；4 front and back Inclination maneuver of steering wheel: adjustment handle 19, handle strut 17 and tune are pulled downwards
Whole handle 19 is rotated with spring catch 16, and behind the face B of handle strut 17 and the touching compression of gas spring contact 15, gas spring 11 is just opened
Beginning work, the elongation of gas spring mandril 12 and then pushing direction disk 4, turn to column 6 and turning support 7 together at height adjustment knob 5
It is rotated around rotation center A, completes front and back Inclination maneuver；When pulling adjustment handle 19 upwards, handle strut 17 and gas spring
Contact 15 disengages, and gas spring contact 15 returns to original state, and gas spring 11 is in locking state at this time, completes direction
4 any position of disk is locked.
As shown in Figure 3, Figure 4, planetary mechanism transmission device 2, comprising: input shaft 22, the first bolt 23, input shaft spacer
24, sun gear fixed circlip 25, planet carrier fixed circlip 26, left and right bracket 27, gear ring 28, planet carrier 29, gag lever post 30, rotation
Bar 31, pedestal 33, drives block plate 37, driving before preceding end bearing 34, driving front end circlip 35, the second nut 36, torsional spring at torsional spring 32
Block plate 41, the first flat key 42, spring catch 43, the second flat key 44, the first pin shaft after axis 38, front limit bar 39, branch pipe 40, torsional spring
45, planetary gear 46, the second bolt 47, sun gear 48, upper cover 49, driving rear end bearing 50, cover board 51, bearing fixed circlip 52,
Stand 53 and the second pin shaft 54.Wherein: gear ring 28, pedestal 33 and branch pipe 40 are affixed；Left and right bracket 27, upper cover 49 and stand 53 are solid
It connects；Gear ring 28 is connected as one by the second bolt 47 with upper cover 49；Driving rear end bearing 50 is installed in upper cover 49；Cover board 51
It is connected by the first bolt 23 with upper cover 49；End bearing 34 is mounted on pedestal 33 before driving；Drive shaft 38 is installed on driving
In preceding end bearing 34, pass through block plate 41 and planet after block plate 37, torsional spring before planet carrier fixed circlip 26, the first flat key 42, torsional spring
Frame 29, rotating bar 31 fix as one；Sun gear 48 passes through the second flat key 44, input shaft spacer 24, sun gear fixed circlip 25
It is fixed on input shaft 22；It is axial fixed that input shaft 22 is carried out by cover board 51, driving rear end bearing 50 and bearing fixed circlip 52
Position；Planetary gear 46 is installed in planet carrier 29 by the first pin shaft 45, and carries out axially position by spring catch 43；Gag lever post
30, front limit bar 39 is assembled from 33 end of pedestal, and fixed with the second nut 36；32 sets of torsional spring in drive shaft 38, are mounted on torsion
Before spring after block plate 37, torsional spring between block plate 41, both ends are contacted with gag lever post 30, rotating bar 31 respectively.When steering wheel 4 does not rotate place
When stationary state, drive shaft 38 is not rotated, and is in neutral position by the collective effect of gag lever post 30, torsional spring 32.The side of working as
When turning left to disk 4, enters in planetary mechanism by connecting shaft 9, connection spline housing 10, input shaft 22, then pass through the sun
Wheel 48, planetary gear 46 are exported from planet carrier 29, and drive shaft 38 turns left, and rotating bar 31 stirs the lower end of torsional spring 32 to the left, this
When torsional spring 32 upper end be limited that bar 30 is fixed, and the lower end that rotating bar 31 stirs torsional spring 32 rotates together to the left with drive shaft 38,
Until 32 lower end of torsional spring turns to and contacts with opposite front limit bar 39.When steering wheel turns right, by connecting shaft 9,
Connection spline housing 10, input shaft 22 enter in planetary mechanism, then are exported by sun gear 48, planetary gear 46 from planet carrier 29,
Drive shaft 38 turns left, and rotating bar 31 stirs the lower end of torsional spring 32 to the left, and the upper end of torsional spring 32 is limited bar 30 and fixes at this time,
The lower end that rotating bar 31 stirs torsional spring 32 rotates together to the left with drive shaft 38, until 32 lower end of torsional spring turn to limiting in front
Until position bar 39 contacts.
As shown in Figure 5, Figure 6, cam disc and hydraulic pilot valve gear 3, comprising: setting-up piece 55, third bolt 56, third
Flat key 57, drive shaft spacer 58, cam disc 59, hydraulic pilot valve 60, pilot valve handle head 61, pilot valve handle 62, the 4th spiral shell
Bolt 63.Wherein: pilot valve handle head 61, the affiliated part that pilot valve handle 62 is hydraulic pilot valve 60；There is production on cam disc 59
Certain helix card slot, pilot valve handle head 61 are placed in card slot.When cam disc 59 is rotated with drive shaft 38, make guide
Valve handle head 61 moves in the helix card slot of cam disc 59, so that pilot valve handle 62 is driven to swing, pilot valve hand
The size of 62 oscillating quantity of handle determines the height of pilot valve output pressure, and pilot valve output oil port is oblique by oil circuit and variable pump
Disk control mechanism connection, the discharge capacity of the height control variable pump of output pressure, finally drives fixed displacement motor dilatory to complete crawler belt
The steering of machine.When steering wheel 4 be in it is static when, pilot valve handle head 61 is in the initial position of helix card slot, hydraulic pilot
First pressure oil export D, the second pressure oil export E of valve 60 are in off position (exporting without pressure oil).When steering wheel 4
When turning left, cam disc 59 turns left also with drive shaft 38, spiral line card of the pilot valve handle head 61 in cam disc 59
Opposite starting point also turns left in slot, and the swing of pilot valve handle 62 drives hydraulic pilot valve 60 to work, at this time the first pressure
Power oil export D is the outlet port of pressure oil liquid.Steering wheel angle is bigger, and first pressure oil export D oil liquid pressure is higher, real
Existing turning radius is with regard to smaller.When steering wheel 4 turns right, cam disc 59 turns right also with drive shaft 38, pilot valve
The opposite starting point in the helix card slot of cam disc 59 of handle head 61 also turns right, and the swing of pilot valve handle 62 drives
Hydraulic pilot valve 60 works, and second pressure oil export E is the outlet port of pressure oil liquid at this time.Steering wheel angle is bigger, and second
Pressure oil export E oil liquid pressure is higher, and the turning radius of realization is with regard to smaller.
Verification experimental verification, the mechanism can make endless-track vehicle under steering resistence contingent condition, and solve its turning radius can
Control problem, improves drive safety, improves the centering capacity of its farm work, saves the subsidiary operation time at the edge of a field,
Effectively increase the production efficiency of farm work；Its is compact-sized, easy to operate, reduces the labor intensity of driver, improves
Driving environment, improves driver comfort, while also improving drive safety.
Claims (2)
1. endless-track vehicle steering control mechanism, comprising: steering mechanism (1), planetary mechanism transmission device (2) and cam disc and hydraulic
Guide's valve gear (3)；It is attached at three with planetary mechanism transmission device (2) it is characterized by: steering mechanism (1) passes through, the
At one: connection spline housing (10)；At second: the second pin shaft (54)；At third: passing through bearing piece (14), left and right bracket with bolt
(27) connecting hole is attached；Planetary mechanism transmission device (2) passes through at two and cam disc and hydraulic pilot valve gear (3)
Connection, at first: being positioned axially through drive shaft spacer (58), and with setting-up piece (55), third bolt (56) locking；Diameter
It is positioned to by third flat key (57)；At second: being fixed on pedestal (33) by the 4th bolt (63)；Turning machine
Structure (1), comprising: steering wheel (4), turns to column (6), turning support (7), Zuo Zhier (8), connecting shaft at height adjustment knob (5)
(9), spline housing (10), gas spring (11), gas spring mandril (12), the first nut (13), bearing piece (14), gas spring contact are connected
(15), spring catch (16), handle strut (17), screw (18), adjustment handle (19), the second connection bolt (20), right trunnion
(21)；Wherein: it is affixed to turn to column (6), turning support (7), Zuo Zhier (8) and right trunnion (21)；Connect spline housing (10) set
It is connected on connecting shaft (9), connecting shaft (9) is connected in the rotation center A on turning support (7)；Handle strut (17) and adjustment
Handle (19) is connected by screw (18)；Handle strut (17) and bearing piece (14) are hinged by spring catch (16)；Gas spring mandril
(12) it is connected through a screw thread with bearing piece (14), and is locked by the first nut (13), as the associate member of gas spring (11), gas spring
(11) hingedly by the second connection bolt (20) and Zuo Zhier (8), right trunnion (21)；Steering wheel (4), height adjustment knob (5)
It is sequentially placed into the upper end for turning to column (6).
2. endless-track vehicle steering control mechanism according to claim 1, it is characterised in that: planetary mechanism transmission device (2),
It include: input shaft (22), the first bolt (23), input shaft spacer (24), sun gear fixed circlip (25), planet carrier fixed circlip
(26), left and right bracket (27), gear ring (28), planet carrier (29), gag lever post (30), rotating bar (31), torsional spring (32), pedestal
(33), it drives preceding end bearing (34), drive block plate (37), drive shaft before front end circlip (35), the second nut (36), torsional spring
(38), block plate (41), the first flat key (42), spring catch (43), the second flat key after front limit bar (39), branch pipe (40), torsional spring
(44), the first pin shaft (45), planetary gear (46), the second bolt (47), sun gear (48), upper cover (49), driving rear end bearing
(50), cover board (51), bearing fixed circlip (52), stand (53) and the second pin shaft (54)；Wherein: gear ring (28), pedestal (33)
It is affixed with branch pipe (40)；Left and right bracket (27), upper cover (49) and stand (53) are affixed；Gear ring (28) by the second bolt (47) with
Upper cover (49) is connected as one；Driving rear end bearing (50) is installed in upper cover (49)；Cover board (51) passes through the first bolt (23)
It is connected with upper cover (49)；End bearing (34) is mounted on pedestal (33) before driving；Drive shaft (38) is installed on driving front end axis
Hold in (34), by block plate (41) after block plate (37), torsional spring before planet carrier fixed circlip (26), the first flat key (42), torsional spring with
Planet carrier (29), rotating bar (31) fix as one；Sun gear (48) passes through the second flat key (44), input shaft spacer (24), too
Sun wheel fixed circlip (25) is fixed on input shaft (22)；Input shaft (22) by cover board (51), driving rear end bearing (50) and
Bearing fixed circlip (52) carries out axially position；Planetary gear (46) is installed in planet carrier (29) by the first pin shaft (45), and
Axially position is carried out by spring catch (43)；Gag lever post (30), front limit bar (39) are held from pedestal (33) and are assembled, and with the second spiral shell
Female (36) are fixed；Torsional spring (32) covers on drive shaft (38), is mounted on before torsional spring after block plate (37), torsional spring between block plate (41),
Both ends are contacted with gag lever post (30), rotating bar (31) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610758807.0A CN106184365B (en) | 2016-08-30 | 2016-08-30 | Endless-track vehicle steering control mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610758807.0A CN106184365B (en) | 2016-08-30 | 2016-08-30 | Endless-track vehicle steering control mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106184365A CN106184365A (en) | 2016-12-07 |
| CN106184365B true CN106184365B (en) | 2019-05-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610758807.0A Active CN106184365B (en) | 2016-08-30 | 2016-08-30 | Endless-track vehicle steering control mechanism |
Country Status (1)
| Country | Link |
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| CN (1) | CN106184365B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106945712B (en) * | 2017-05-12 | 2023-03-07 | 新乡北方车辆仪表有限公司 | Adjustable display control multifunctional operating device |
| CN108897369A (en) * | 2018-08-29 | 2018-11-27 | 杭叉集团股份有限公司 | A kind of operation handle |
| CN109911011B (en) * | 2019-04-12 | 2023-11-14 | 第一拖拉机股份有限公司 | Automatic steering hydraulic system of crawler tractor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1287740B1 (en) * | 1996-05-09 | 1998-08-18 | Gianni Ferrari S R L | GOVERNING SYSTEM FOR SMALL OPERATING MACHINES SUCH AS LAWN MOWERS AND SIMILAR |
| CN2585894Y (en) * | 2002-02-04 | 2003-11-12 | 中国人民解放军第六四四三工厂 | Power steering crawler dozer |
| CN201405912Y (en) * | 2009-05-26 | 2010-02-17 | 中国一拖集团有限公司 | Steering mechanism for controlling swing of priority valve by steering wheel of tractor |
| CN102649448B (en) * | 2012-04-17 | 2014-07-02 | 杭州葛高机械股份有限公司 | Hydraulic steering wheel planetary steering crawler tractor |
| CN104648475A (en) * | 2013-11-22 | 2015-05-27 | 湖北万山宏业汽车零部件有限公司 | Electrohydraulic steering mechanism of steering wheel type tracked car |
| CN206012715U (en) * | 2016-08-30 | 2017-03-15 | 第一拖拉机股份有限公司 | Endless-track vehicle steering control mechanism |
-
2016
- 2016-08-30 CN CN201610758807.0A patent/CN106184365B/en active Active
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| CN106184365A (en) | 2016-12-07 |
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