CN106982591A - A kind of baby combine transfer - Google Patents
A kind of baby combine transfer Download PDFInfo
- Publication number
- CN106982591A CN106982591A CN201710287644.7A CN201710287644A CN106982591A CN 106982591 A CN106982591 A CN 106982591A CN 201710287644 A CN201710287644 A CN 201710287644A CN 106982591 A CN106982591 A CN 106982591A
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- China
- Prior art keywords
- steering
- tightening member
- valve
- groove
- torsion spring
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
- A01D41/12—Details of combines
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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
-
- 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
- B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
The invention discloses a kind of baby combine transfer, including the gearbox with steering arm on chassis main frame, crosshead located at gearbox rear, transfer also includes the main steering mechanism with two grades of steering travels, the auxiliary steering mechanism under any walking states to track route progress precise fine-adjustment；Main steering mechanism includes the switching valve on crosshead, the control structure for realizing main two grades of steering travels of steering mechanism on crosshead, the steering cylinder for abutting steering arm on gearbox, auxiliary steering mechanism includes regulation handle on the crosshead, is fixed in the connection fork of steering arm, connection regulation handle and is connected the bracing wire pitched.The transfer steering behaviour is good, it is flexible to turn to, turning track precision height, realizes that clearly secondary stroke is turned to and the directional trim cleaned and amendment baby combine, makes steering continuous-stable, improves operating efficiency, mitigation driver's labor intensity.
Description
Technical field
The present invention relates to united reaper technical field, more particularly to a kind of baby combine transfer.
Background technology
The steering of usual harvester is the steering arm being rotatablely equipped with by various methods on gearbox, is driven in gearbox
Steering shift fork, turn to shift fork and stir the tooth sector on one side and disengaged with central driver gear, at this moment the traveling crawler of side does not have
There is a driving force, but under the drive of opposite side crawler belt, also coming along, speed is slower than another side crawler belt, harvester is to side sideslip；When
Steering arm is rotated further, and is turned to shift fork and is continued to stir tooth sector movement, and compresses the brake strip of side, until pressure completely
Extremely, now the traveling crawler one of turn side is braked, and harvester does pivot stud.Here it is the secondary stroke that harvester is turned to：
First tooth sector separation, rear brake strip braking.
Harvester fluid-link steering in the market uses manual steering valve, is moved by handle and connecting rod band movable valve plug or so
It is dynamic, to realize the work of steering cylinder.Usual manual steering valve producer publicity, which has, turns to secondary stroke, actual because valve element is moved
Move apart from short, be difficult to realize and turn to secondary stroke.Shortcoming is not obvious when being turned on the agricultural machinery such as large-scale harvester, for small-sized receipts
When on cutting mill, steering is too fast, turns to impact obvious.
The content of the invention
It is an object of the invention to provide a kind of baby combine transfer, steering behaviour is good, steering is flexible, turn
It is high to track precision, realize that clearly secondary stroke is turned to and clearly directional trim and amendment baby combine, is made
Continuous-stable is turned to, operating efficiency is improved, mitigates driver's labor intensity.
The present invention above-mentioned technical purpose technical scheme is that：
A kind of baby combine transfer, including the gearbox with steering arm on chassis main frame, are located at
The crosshead at the gearbox rear, the transfer also includes the main steering mechanism with two grades of steering travels, any
The auxiliary steering mechanism of precise fine-adjustment is carried out under walking states to track route；The main steering mechanism includes being located at the operation
Switching valve on frame, the control structure for realizing two grades of steering travels of main steering mechanism on the crosshead, it is located at
The steering cylinder of the abutting steering arm on the gearbox, the auxiliary steering mechanism is included on the crosshead
Regulation handle, the connection fork for being fixed in the steering arm, connect the regulation handle and the bracing wire of the connection fork.
Preferably, the control structure includes manually operated steering tiller, directly connected with the valve rod of the switching valve
What is connect turns to the first connecting rod of adjustable plate, the connection steering tiller and the steering adjustable plate.
Preferably, the control structure also includes the oil return regulating valve on the switching valve, the oil return adjustment
The oil inlet of valve is connected with the steering oil return opening oil pipe of the steering cylinder, oil-out and the fuel tank oil pipe of the oil return regulating valve
Connection, the oil return regulating valve being used for including salable slip adjusts the valve element of the oil inlet openings of sizes, located at valve element
Back-moving spring between the oil inlet, located at valve element bottom be used for overcome the back-moving spring elastic force change valve element with
Oil inlet is transferred to the oil return adjustment valve plate apart from the oil return adjustment valve plate of size, by the power for imposing on the steering adjustable plate
Second connecting rod.
Preferably, the oil return adjustment valve plate includes with the steering valve body pivot joint and supported with the valve element bottom
The service portion connect, the connecting portion being connected with the second connecting rod；The service portion, which has, is used for the pivot affixed with the connecting portion
Axle, the connecting portion has bearing pin, and the second connecting rod is provided with the elongated hole coordinated with the bearing pin.
Preferably, being respectively equipped with the first steel with the contact surface both sides of the edge of the valve element bottom on the service portion
Ball, the second steel ball, first steel ball, the second steel ball can the vertically contact surface resilient movements, and the first steel ball and the second steel
Ball is on the pivot center specular；The valve element bottom is provided with along valve element spaced radial and is adapted with the steel ball surface
The first groove, the second groove, and the first groove and the second groove are symmetrical on center spool；First steel ball reaches first
The first order stroke of stroke and the valve rod when groove or second steel ball reach the second groove terminates to second level stroke
The stroke of end is adapted.
Preferably, the auxiliary steering mechanism also includes being used in institute between the connection fork and the bracing wire
Stating steering arm and be under arbitrary orientation to keep connecting between fork and steering arm, there is identical initially to tighten power, and keep described
Regulation handle has the relay structure of clearly Multi-stage damping feedback all the time.
It is connected to preferably, the relay structure includes mounting bracket, bearing with a fixing axle in the fixing axle
First tightening member, the bearing in portion are connected in the fixing axle and are located at first tightening member close to chassis main frame medial side
The reverse regulating part of auxiliary, be threadedly connected in the fixing axle and positioned at first tightening member away from the middle part of chassis main frame
Second tightening member of side, it is fixedly arranged on stop bit block of the fixing axle thread segment away from chassis main frame medial side.
Preferably, bracing wire is connected between first tightening member and connection fork, the appearance of first tightening member
Face is provided with the first helix groove for winding bracing wire, first tightening member along fixing axle outer surface and is provided with the first torsion spring,
First tightening member is used on second tightening member close to the end face of second tightening member provided with least one
Power is transferred to the projection on first tightening member；Second tightening member is connected with the regulation handle bracing wire, and described
The outer surface of two tightening members is provided with the second helix groove for winding bracing wire, second tightening member along fixing axle outer surface
Provided with the second torsion spring, second tightening member is provided with close to the end face of first tightening member is used for what is be engaged with the projection
Groove；The reverse regulating part of auxiliary is that an one end and first tightening member are affixed, and the other end and the fixing axle are affixed
Aid in torsion spring.
Preferably, the projection can be flexible along the fixing axle axial elasticity, the groove depth of the groove is along close to described
The direction of rotation of first tightening member is gradually incremented by, and the maximum groove depth of the groove is more than the first tightening member where the projection is stretched out
The maximum extension elongation of end face, the regulation stroke adjustment stroke that the regulation handle is scaled to fixing axle axial direction is tightened more than first
Maximum spacing between part and the second tightening member phase proximal end face.
Preferably, one end of first torsion spring and the fixing axle are affixed, the other end is consolidated with first tightening member
Connect, one end of second torsion spring and second tightening member are affixed, the other end and the stop bit block are affixed；Described first turns round
The twisting resistance of spring increases with the increase of the first tightening member and the distance for being connected fork, and the twisting resistance of the auxiliary torsion spring is with the
One tightening member reduces with being connected the increase for the distance pitched, and the twisting resistance of first torsion spring is consistently greater than the auxiliary torsion spring
Twisting resistance, and the difference of the twisting resistance of first torsion spring and the auxiliary torsion spring is always consistent, and the difference of the twisting resistance is small
In the minimum force for rotating the steering arm；The twisting resistance gradual change direction of second torsion spring and the torsion of first torsion spring
Power gradual change is in opposite direction.
In summary, the invention has the advantages that：
A kind of baby combine transfer, with performing the main steering mechanism that significantly turns to and in arbitrarily walking shape
The auxiliary steering mechanism of precise fine-adjustment is carried out under state to track route.
Set up oil return regulating valve on switching valve in main steering mechanism, and the control of the oil return regulating valve is integrated in turned
To in the control structure of valve, while the stroke of the stretching of switching valve valve rod or retraction is adjusted by steering tiller, returned
The opening and closing degree in the gap of oily regulation valve core and oil inlet, and all have clearly when starting to close and close complete in gap
Operating handle is fed back, and accomplishes that clear clearly demarcated secondary stroke is turned to.
In auxiliary steering mechanism, the elastic adjustment of bracing wire is carried out by regulation handle, drives connection fork to get around main steering
Steering arm on mechanism direct drive gearbox, carries out steering fine setting with being relatively independent of main steering mechanism；And in connection
A relay structure is provided between fork and bracing wire, steering arm is driven by main steering mechanism and under any turned position, is turned
Remain and tighten between arm and connection fork, and the pretightning force with formed objects, and the pretightning force is less than and turns steering arm
Dynamic minimum force, while the action of steering arm does not influence what the regulation handle on crosshead had initially to tighten power, makes steering
Arm operates auxiliary steering mechanism to have excellent handle always under any turned position；Regulation handle is operated, makes relay facility
In the second tightening member be threadingly advanced in fixing axle, the second tightening member is engaged with the first tightening member, drive the first tightening member rotation
Turn, impose the power that connection fork is enough to rotate steering arm, realize independent steering fine setting and amendment, and can turned by a small margin
To when by the control error of the main steering mechanism of auxiliary steering mechanism amendment, prevent ovdersteering.
Brief description of the drawings
Fig. 1 is the structural representation of one embodiment of the invention；
Fig. 2 is the overlooking structure figure of the embodiment；
Fig. 3 is the structural representation of main steering mechanism；
Fig. 4 is the structural representation of oil return regulating valve when the stroke of switching valve valve rod second starts；
Fig. 5 be the stroke of switching valve valve rod second at the end of oil return regulating valve structural representation；
Fig. 6 is the view of valve element and service portion when the stroke of switching valve valve rod second starts；
Fig. 7 be the stroke of switching valve valve rod second at the end of valve element and service portion view；
Fig. 8 is the connection diagram of relay structure；
Fig. 9 is the structure sectional view of relay structure；
Figure 10 is the axial of the groove on the second tightening member.
Embodiment
Below in conjunction with the accompanying drawings and preferred scheme the present invention will be further described in detail.
This specific embodiment is only explanation of the invention, and it is not limitation of the present invention, people in the art
Member can make the modification without creative contribution to the present embodiment as needed after this specification is read, but as long as at this
All protected in the right of invention by Patent Law.
Embodiment：As shown in Figure 1-2, a kind of baby combine transfer, including on chassis main frame
Gearbox 1 with steering arm 101, the crosshead 2 located at the rear of gearbox 1, in addition to the master with two grades of steering travels turn
The auxiliary steering mechanism 20 of precise fine-adjustment is carried out to track route to mechanism 10, under any walking states；Main steering mechanism 10
The control for realizing main 10 2 grades of steering travels of steering mechanism including the switching valve 11 on crosshead 2, on crosshead 2
Structure 12, the steering cylinder 13 for abutting steering arm 101 on gearbox 1, auxiliary steering mechanism 20 include being located at crosshead 2
On regulation handle 21, be fixed in steering arm 101 connection fork 22, connection regulation handle 21 and be connected pitch 22 bracing wire 23.It is main
Steering mechanism 10 is turned to using mono-lever control harvester, and operating physical force is small, and steering range is big, the suitable big steering operation in the edge of a field；
Auxiliary steering mechanism 20 is relatively independent of the main ground of steering mechanism 10 and carries out steering fine setting, amendment is received by the light regulation handle 21 of hand
Cutting mill direction, the suitable directional trim in traveling, both are implemented in combination with turning to continuous-stable, easily precisely realize the steering needed
Angle, improves operating efficiency, mitigates driver's labor intensity.
Further, as in Figure 3-5, control structure 12 includes manually operated steering tiller 121, the valve with switching valve
What bar was directly connected to turns to the first connecting rod 123 of adjustable plate 122, connection steering tiller 121 with turning to adjustable plate 122；Control knot
Structure 12 also includes the oil return regulating valve 124 on switching valve 11, oil inlet 1243 and the steering cylinder 13 of oil return regulating valve 124
The connection of the oil pipe of steering oil return opening 131, the oil-out 1244 of oil return regulating valve 124 is connected with fuel tank oil pipe, oil return regulating valve 124
Being used for including salable slip adjusts the valve element 1241 of the openings of sizes of oil inlet 1243, located at valve element 1241 and oil inlet 1243
Between back-moving spring 1242, located at valve element bottom be used for overcome back-moving spring 1242 elastic force change valve element and oil inlet away from
Oil return adjustment valve plate 125 from size, the power that turns to adjustable plate 122 will be imposed on it is transferred to the second of oil return adjustment valve plate 125 and connect
Bar 126.
Oil return adjustment valve plate 125 includes service portion that is being pivotally connected with the valve body of switching valve 11 and being abutted with the bottom of valve element 1241
1251st, the connecting portion 1252 being connected with second connecting rod 126；Service portion 1251, which has, is used for the pivot affixed with connecting portion 1252
12511, connecting portion 1252 has bearing pin 12521, and second connecting rod 126 is provided with the elongated hole 1261 coordinated with bearing pin 12521.
Switching valve 11 is a single valve bar three position four-way directional control valve, with overflow valve, and steering cylinder 13 is a double rods in the same direction
Oil cylinder, the switching valve 11 is connected with the oil pipe of steering cylinder 13.The right turn oil-out of switching valve 11 and steering cylinder 13
The connection of right turn oil inlet oil pipe, the left steering oil inlet oil pipe of the left steering oil-out of switching valve 11 and steering cylinder 13 connects
Connect.
During work, when steering tiller 121 is in middle position, driven by engine gear oil pump feed is to switching valve 11, switching valve 11
Interior direct oil return is to fuel tank.At this moment steering cylinder 13 is not worked, and both sides tooth sector is nibbled with central driver gear in gearbox 1
Close, harvester straight trip；
When steering tiller 121 pulls certain angle to side, drive switching valve valve rod protruding or be inwardly indented, right turn
Oil-out or left steering outlet are fuel-displaced, and hydraulic oil flows to push rod chamber or left side push rod chamber on the right side of steering cylinder by oil pipe, by the right side
Side push rod or left side push rod eject a segment distance, and at this moment hydraulic oil returns to oil return regulating valve by turning to oil return opening from oil return pipe
In 124.Because second connecting rod 126 is provided with elongated hole 1261, when turning to the rotation of adjustable plate 122, oil return adjustment valve plate 125 does not turn
It is dynamic.Hydraulic oil is directly back to fuel tank from oil return opening 1244.At this moment the push rod of steering cylinder 13 promotes steering arm 101 to rotate certain angle
Degree, drives the interior shift fork that turns to of gearbox to rotate, and turns to tooth sector and central driver gear disengagement that shift fork stirs one side, at this moment
Harvester sideslip, so as to realize the first stroke of steering.
When steering tiller 121 continues to pull to the side, switching valve valve rod is driven to continue protruding or be inwardly indented, it is right
The fuel-displaced holding of steering oil-out or left steering outlet is fuel-displaced, and at this moment oil return adjustment valve plate 125 is driven, and is rotated around pivot 12511,
Valve element 1241 is promoted to be moved to oil inlet 1243 simultaneously so that the gap of valve element 1241 and oil inlet 1243 slowly diminishes, oil pressure
Rise；Hydraulic oil customer service spring resistance continues oil cylinder push rod to release a segment distance downwards in steering cylinder 13；Oil cylinder push rod is pushed away
Dynamic steering arm 101 is rotated further, and related steering shift fork, which is rotated, drives tooth sector to start to compress brake strip, and harvester is turned to
Amplitude is further increased；When steering tiller 121 continues to pull the bottom of to the side, oil return adjustment valve plate 125 is driven rotation, together
When promote valve element 1241 to continue to move to, to completely cutting off oil circuit, oil pressure continues to raise, and hydraulic oil is by oil cylinder in steering cylinder 13
Push rod continue it is downward release, oil cylinder push rod continues to press on steering arm 101 and rotated, related steering shift fork rotate drive tooth sector after
Continuous to compress brake strip, until compressing brake strip completely, harvester steering angle reaches maximum；When hydraulic circuit internal pressure
During the elevated setting value of power, overflow valve is opened, and makes to keep setting pressure in oil circuit, steering cylinder push rod is kept complete top
Do well, so as to realize the second stroke of steering.
Further, as shown in figs. 4-7, the contact surface both sides of the edge difference with the bottom of valve element 1241 on service portion 1251
Can the movement of perpendicular contact surface elastic, and the first steel provided with the first steel ball A1, the second steel ball A2, the first steel ball A1, the second steel ball A2
Ball A1 and the second steel ball A2 are on pivot center specular；The bottom of valve element 1241 is provided with and steel ball surface along valve element spaced radial
Adaptable the first groove B1, the second groove B2, and the first groove B1 and the second groove B2 are symmetrical on center spool；First steel
The first order stroke that ball A1 reaches stroke when the first groove or the second steel ball A2 reach the second groove B2 and valve rod terminates to the
The stroke that second level stroke terminates is adapted.By taking the first steel ball A1 and the first groove B1 cooperation as an example, opened when turning to the second stroke
During the beginning, the first steel ball A1 exposes contact surface naturally, and is connected to the edge of the bottom surface of valve element 1241, as service portion 1251 is around pivot
12511 rotations, the first steel ball A1 by back-moving spring 1242 be pressed against moved in contact surface, and push valve element 1241 to oil-feed
Mouth 1243, at the end of the second stroke is turned to, the top of valve element 1241 abuts closing oil return with oil inlet 1243, while the first steel ball
A1 reaches the first groove B1 positions, and the first steel ball A1 is embedded in the first groove B1.Thus, needed when the second stroke starts
The power of the first steel ball A1 resilient movements is overcome, with clearly operating handle feedback；At the end of second stroke, the resilient movement
Power disappears, while the position of service portion 1251 and valve element 1241 is relatively fixed because of the first steel ball A1 and the first groove B1 engagement,
Make equally to feed back with clearly operating handle at the end of the second stroke, realize the clear clearly demarcated of secondary steering.
Further, as seen in figs. 8-10, auxiliary steering mechanism 20 is also included between connection fork 22 and bracing wire 23
Relay structure 24.
Relay structure 24 stretches tight including mounting bracket, bearing with a fixing axle 241 are connected to the middle part of fixing axle 241 first
Tight part 242, bearing are connected in fixing axle 241 and anti-close to the auxiliary of chassis main frame medial side positioned at the first tightening member 242
To regulating part 243, be threadedly connected in fixing axle 241 and positioned at the of the first tightening member 242 away from chassis main frame medial side
Two tightening members 244, it is fixedly arranged on stop bit block 245 of the thread segment of fixing axle 241 away from chassis main frame medial side.Mounting bracket is installed on
On chassis main frame, fixing axle 241 has optical axis section and thread segment, aids in reverse regulating part 243 to be set successively with the first tightening member 242
In optical axis section, the second tightening member 244 is sequentially arranged in thread segment with stop bit block 245；First tightening member 242 is around bearing with fixing axle
Rotated centered on 241, and without axial movement；Second tightening member 244 can be engaged or departed from the first tightening member 242, natural shape
It is resisted against under state on stop bit block 245.
Bracing wire is connected between first tightening member 242 and connection fork 22, and the outer surface of the first tightening member 242, which is provided with, is used for winding
The first torsion spring 2422 is provided with along fixing axle outer surface in first helix groove 2421 of bracing wire, the first tightening member 242, first tightens
Part 242 is used to the power on the second tightening member 244 being transferred to the close to the end face of the second tightening member 244 provided with least one
Projection 2423 on one tightening member 242；Second tightening member 244 is connected with the bracing wire of regulation handle 21, the appearance of the second tightening member 244
Face is provided with the second helix groove 2441 for winding bracing wire, the second tightening member 244 and turned round along fixing axle outer surface provided with second
Spring 2442, the second tightening member 244 is provided with the groove for being used for being engaged with projection 2423 close to the end face of the first tightening member 242
2443；It is that an one end and the first tightening member 242 are affixed to aid in reverse regulating part 243, the other end and the affixed auxiliary of fixing axle 241
Torsion spring.
One end of first torsion spring 2422 and fixing axle 241 are affixed, the other end and the first tightening member 242 are affixed, the second torsion spring
2442 one end and the affixed, other end of the second tightening member 244 and stop bit block 245 are affixed；The twisting resistance of first torsion spring 2422 with
The increase of distance of first tightening member with being connected fork and increase, aid in the twisting resistance of torsion spring as the first tightening member is with being connected fork
Distance increase and reduce, the twisting resistance of the first torsion spring 2422 is consistently greater than the twisting resistance of auxiliary torsion spring, and the first torsion spring
2422 and aid in torsion spring twisting resistance difference it is always consistent, and the twisting resistance difference be less than make steering arm 101 rotate most
Small force；The twisting resistance gradual change direction of second torsion spring 2442 and the twisting resistance gradual change of the first torsion spring 2422 are in opposite direction.
When carrying out course changing control using main steering mechanism 10, steering arm 101 is likely to be under any turned position, and first
Torsion spring 2422 is by tightening bracing wire, it is ensured that connection fork 22 and steering arm 101 between tighten all the time it is not slack and undisciplined, and aid in reversely regulation
Part 243 ensures that this tightens that power is consistent all the time, not more than make steering arm 101 rotate needed for minimum force, meanwhile, nature
Lower second tightening member 244 is resisted against on stop bit block 245, and the second torsion spring 2442 is by tightening bracing wire, it is ensured that in regulation handle 21
With it is certain it is initial tighten power, the first tightening member 242 and the second mutually disengagement of tightening member 244, the action of steering arm 101 not shadow
Ring that regulation handle 21 has it is initial tighten power, when the steering arm 101 is operated auxiliary steering mechanism 20 under any turned position
The excellent handle being consistent.
Further, projection 2423 can be flexible along the axial elasticity of fixing axle 241, and the groove depth of groove 2443 stretches tight along close to first
The direction of rotation of tight part 242 is gradually incremented by, and the maximum groove depth of groove 2443 is more than the first tightening member end where projection 2423 is stretched out
The maximum extension elongation in face, the regulation stroke that regulation handle 21 is scaled to fixing axle axial direction is more than the first tightening member 242 and second
Maximum spacing between the phase proximal end face of tightening member 244.Projection 2423 and groove 2443 can multipair circumference be uniformly arranged on first and stretch tight
Tight part 242 with the phase proximal end face of the second tightening member 244.When needing to carry out assisted diversion operation, regulation handle 21 is operated, is made
Second tightening member 244 is threadingly advanced in fixing axle 241, if the end face of the second tightening member touches projection 2423 first,
Projection 2423 is squeezed compression and back, and the second tightening member 244 continues to be threadingly advanced, until projection 2423 is fallen into groove 2443, second
Tightening member 244 continues to be threadingly advanced, until projection 2423 is abutted to groove walls, the second tightening member 244 and the first tightening member 242 are real
Now engage, drive the first tightening member 242 to rotate, impose the power that connection fork 22 is enough to rotate steering arm 101, realize independent turn
To fine setting and amendment, and can when turn to by a small margin by the control error of the main steering mechanism of auxiliary steering mechanism amendment,
Prevent ovdersteering.Regulation handle 21 remains tight, before the second tightening member 244 is engaged with the first tightening member 242, adjusts
Power uniform increments under the influence of the second torsion spring 2442 are tightened on section handle 21, in the second tightening member 244 and the first tightening member
Tightening power after 242 engagements substantially, clearly increases, and then proceedes to uniform increase, so as to keep regulation handle 21 all the time
With clearly Multi-stage damping feedback.
Claims (10)
1. a kind of baby combine transfer, including there is steering arm on chassis main frame（101）Speed change
Case（1）, located at the gearbox（1）The crosshead at rear（2）, it is characterised in that the transfer also includes having two grades
The main steering mechanism of steering travel（10）, under any walking states to track route carry out precise fine-adjustment auxiliary steering mechanism
（20）；The main steering mechanism（10）Including located at the crosshead（2）On switching valve（11）, located at the crosshead（2）
On realize the main steering mechanism（10）The control structure of two grades of steering travels（12）, located at the gearbox（1）On support
Connect the steering arm（101）Steering cylinder（13）, the auxiliary steering mechanism（20）Including located at the crosshead（2）On
Regulation handle（21）, be fixed in the steering arm（101）Connection fork（22）, connect the regulation handle（21）With the connection
Fork（22）Bracing wire（23）.
2. a kind of baby combine transfer according to claim 1, it is characterised in that：The control structure
（12）Including manually operated steering tiller（121）And the steering adjustable plate that the valve rod of the switching valve is directly connected to（122）、
Connect the steering tiller（121）With the steering adjustable plate（122）First connecting rod（123）.
3. a kind of baby combine transfer according to claim 2, it is characterised in that：The control structure
（12）Also include being located at the switching valve（11）On oil return regulating valve（124）, the oil return regulating valve（124）Oil inlet
（1243）With the steering cylinder（13）Steering oil return opening（131）Oil pipe is connected, the oil return regulating valve（124）Oil-out
（1244）It is connected with fuel tank oil pipe, the oil return regulating valve（124）Being used for including salable slip adjusts the oil inlet
（1243）The valve element of openings of sizes（1241）, located at valve element（1241）With the oil inlet（1243）Between back-moving spring
（1242）, located at valve element bottom be used for overcome the back-moving spring（1242）Elastic force change valve element and oil inlet apart from size
Oil return adjustment valve plate（125）, the steering adjustable plate will be imposed on（122）Power be transferred to the oil return adjustment valve plate（125）
Second connecting rod（126）.
4. a kind of baby combine transfer according to claim 3, it is characterised in that：The oil return adjustment
Valve plate（125）Including with the switching valve（11）Valve body pivot joint and with the valve element（1241）The service portion that bottom is abutted
（1251）And the second connecting rod（126）The connecting portion of connection（1252）；The service portion（1251）With for the company
Socket part（1252）Affixed pivot（12511）, the connecting portion（1252）With bearing pin（12521）, the second connecting rod（126）
It is provided with and the bearing pin（12521）The elongated hole of cooperation（1261）.
5. a kind of baby combine transfer according to claim 4, it is characterised in that：The service portion
（1251）On with the valve element（1241）The contact surface both sides of the edge of bottom are respectively equipped with the first steel ball（A1）, the second steel ball
（A2）, first steel ball（A1）, the second steel ball（A2）Can the vertically contact surface resilient movement, and the first steel ball（A1）With
Two steel balls（A2）On the pivot center specular；The valve element（1241）Bottom along valve element spaced radial be provided with it is described
The first adaptable groove of steel ball surface（B1）, the second groove（B2）, and the first groove（B1）With the second groove（B2）On valve
Core Central Symmetry；First steel ball（A1）Reach the first groove or second steel ball（A2）Reach the second groove（B2）When
The first order stroke of stroke and the valve rod terminates to the stroke that second level stroke terminates to be adapted.
6. a kind of baby combine transfer according to claim 1, it is characterised in that：The assisted diversion
Mechanism（20）Also include located at the connection fork（22）With the bracing wire（23）Between be used in the steering arm（101）It is in
Keep between connection fork and steering arm there is identical initially to tighten power under arbitrary orientation, and keep the regulation handle（21）
All the time there is the relay structure of clearly Multi-stage damping feedback（24）.
7. a kind of baby combine transfer according to claim 6, it is characterised in that：The relay structure
（24）Including with a fixing axle（241）Mounting bracket, bearing be connected to the fixing axle（241）First tightening member at middle part
（242）, bearing be connected to the fixing axle（241）On and positioned at first tightening member（242）In the middle part of chassis main frame
The reverse regulating part of auxiliary of side（243）, be threadedly connected to the fixing axle（241）On and positioned at first tightening member
（242）The second tightening member away from chassis main frame medial side（244）, be fixedly arranged on the fixing axle（241）Thread segment is away from chassis
The stop bit block of central rack side（245）.
8. a kind of baby combine transfer according to claim 7, it is characterised in that：Described first tightens
Part（242）Pitched with the connection（22）Between bracing wire connect, first tightening member（242）Outer surface be provided be used for winding draw
First helix groove of line（2421）, first tightening member（242）It is interior to be provided with the first torsion spring along fixing axle outer surface（2422）,
First tightening member（242）Close to second tightening member（244）End face be used for provided with least one by described second
Tightening member（244）On power be transferred to first tightening member（242）On projection（2423）；Second tightening member
（244）With the regulation handle（21）Bracing wire is connected, second tightening member（244）Outer surface be provided with for winding bracing wire
Second helix groove（2441）, second tightening member（244）It is interior to be provided with the second torsion spring along fixing axle outer surface（2442）, it is described
Second tightening member（244）Close to first tightening member（242）End face be provided be used for and the projection（2423）It is engaged
Groove（2443）；The reverse regulating part of auxiliary（243）For an one end and first tightening member（242）It is affixed, the other end with
The fixing axle（241）Affixed auxiliary torsion spring.
9. a kind of baby combine transfer according to claim 8, it is characterised in that：The projection
（2423）Can be along the fixing axle（241）Axial elasticity stretches, the groove（2443）Groove depth tightened along close to described first
Part（242）Direction of rotation gradually be incremented by, the groove（2443）Maximum groove depth be more than the projection（2423）Where stretching out
The maximum extension elongation of first tightening member end face, the regulation handle（21）The regulation stroke for being scaled to fixing axle axial direction is more than the
One tightening member（242）With the second tightening member（244）Maximum spacing between phase proximal end face.
10. a kind of baby combine transfer according to claim 8, it is characterised in that：Described first turns round
Spring（2422）One end and the fixing axle（241）The affixed, other end and first tightening member（242）It is affixed, described second
Torsion spring（2442）One end and second tightening member（244）The affixed, other end and the stop bit block（245）It is affixed；It is described
First torsion spring（2422）Twisting resistance increase, the auxiliary torsion spring with the increase of first tightening member and the distance for being connected fork
Twisting resistance reduces, first torsion spring with the first tightening member with being connected the increase for the distance pitched（2422）Twisting resistance all the time
More than the twisting resistance of the auxiliary torsion spring, and first torsion spring（2422）And the difference of the twisting resistance of the auxiliary torsion spring is protected all the time
Hold consistent, and the difference of the twisting resistance is less than and makes the steering arm（101）The minimum force of rotation；Second torsion spring（2442）'s
Twisting resistance gradual change direction and first torsion spring（2422）Twisting resistance gradual change it is in opposite direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710287644.7A CN106982591A (en) | 2017-04-27 | 2017-04-27 | A kind of baby combine transfer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710287644.7A CN106982591A (en) | 2017-04-27 | 2017-04-27 | A kind of baby combine transfer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106982591A true CN106982591A (en) | 2017-07-28 |
Family
ID=59418079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710287644.7A Pending CN106982591A (en) | 2017-04-27 | 2017-04-27 | A kind of baby combine transfer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106982591A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110788525A (en) * | 2019-10-09 | 2020-02-14 | 阜阳常阳汽车部件有限公司 | Protection device for welding heavy truck cab assembly |
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| JPH0837814A (en) * | 1994-08-03 | 1996-02-13 | Iseki & Co Ltd | Steering device for turning tractor |
| CN2476673Y (en) * | 1999-12-07 | 2002-02-13 | 佳木斯液压件厂 | Pressure balance type hydraulic multichannel change valve operated by single bar |
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| CN110788525A (en) * | 2019-10-09 | 2020-02-14 | 阜阳常阳汽车部件有限公司 | Protection device for welding heavy truck cab assembly |
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