CN115107872A - Steering mechanism of crawler tractor - Google Patents
Steering mechanism of crawler tractor Download PDFInfo
- Publication number
- CN115107872A CN115107872A CN202210570338.5A CN202210570338A CN115107872A CN 115107872 A CN115107872 A CN 115107872A CN 202210570338 A CN202210570338 A CN 202210570338A CN 115107872 A CN115107872 A CN 115107872A
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- steering
- tractor
- rod
- hydraulic switch
- rotatably connected
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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
- B62D11/02—Steering non-deflectable wheels; Steering endless tracks or the like by differentially driving ground-engaging elements on opposite vehicle sides
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- 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
The invention provides a steering mechanism of a crawler tractor, which comprises a tractor frame, a steering gear, a first hydraulic pump, a second hydraulic pump, a steering control part and a steering part, wherein the steering gear is arranged on the tractor frame; the steering gear is arranged on the tractor frame, the top of the steering gear is provided with a direction input end, and the side surface of the steering gear is provided with a direction output end; the first hydraulic pump is arranged on the tractor frame and is provided with a first hydraulic switch; the second hydraulic pump is arranged on the tractor frame and is connected with the first hydraulic pump in series, and a second hydraulic switch is arranged on the second hydraulic pump; the steering control part is connected with the direction input end; the steering part comprises a steering input end, a first steering output end and a second steering output end, the steering input end is connected to the direction output end, the first steering output end is connected between the steering input end and the first hydraulic switch, and the second steering output end is connected between the steering input end and the second hydraulic switch; this application effectively reduces the turning radius of tractor.
Description
Technical Field
The invention relates to the technical field of crawler tractors, in particular to a steering mechanism of a crawler tractor.
Background
The existing crawler tractor has the advantages of small pressure per unit area of soil, good adhesion performance to the soil and the like, has better passing performance in moist and soft soil, and is high in traction efficiency.
The a steering system that current crawler tractor adopted is comparatively complicated, from taking the clutch in its gearbox, the both sides track respectively is connected with a brake equipment, every brake equipment is connected with a brake lever, need stimulate one side brake lever when turning to, with one side track braking, then offside track continuation motion, it is rotatory as the center to make one of tractor use track, the realization turns to, it is big to turn to the radius, be difficult for controlling, and frequent braking is seriously easy to break down to the wearing and tearing of stopper.
If a hydraulic steering gear or a steering gearbox is directly used, the forward rotation of the crawler on one side of the crawler tractor and the braking mode rotation of the crawler on one side can be realized, but the structure is complex, the cost is high, and the maintenance is very difficult.
Therefore, aiming at the problems, the invention provides the steering mechanism of the crawler tractor, which has the advantages of simple and convenient steering operation, no obvious cost increase and high reliability.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the steering mechanism of the crawler tractor, which adopts a linkage mechanical mode to realize simple steering control and variable speed driving, has small turning radius and does not need to additionally add a hydraulic steering gear or a steering gearbox. The technical scheme adopted by the invention is as follows:
a steering mechanism of caterpillar tractor comprises
A tractor frame extending in a tractor traveling direction;
the steering gear is arranged on the tractor frame, the top of the steering gear is provided with a direction input end, and the side surface of the steering gear is provided with a direction output end;
the first hydraulic pump is arranged on the tractor frame and used for controlling the left crawler in the tractor to walk, and a first hydraulic switch capable of swinging forwards and backwards is arranged on the first hydraulic pump; when the first hydraulic switch deflects forwards, the first hydraulic pump rotates forwards, the left crawler belt moves forwards, and otherwise, the left crawler belt moves backwards;
the second hydraulic pump is arranged on the tractor frame, is connected with the first hydraulic pump in series and is used for controlling the crawler belt at the middle right side of the tractor to walk, and a second hydraulic switch capable of swinging forwards and backwards is arranged on the second hydraulic pump; when the second hydraulic switch deflects forwards, the second hydraulic pump rotates forwards, the right crawler belt moves forwards, and otherwise, the right crawler belt moves backwards;
a steering control unit connected to the direction input end, the steering control unit being capable of rotating left and right;
the steering part comprises a steering input end, a first steering output end and a second steering output end, the steering input end is connected to the direction output end, the first steering output end is connected between the steering input end and the first hydraulic switch, and the second steering output end is connected between the steering input end and the second hydraulic switch so as to realize synchronous deflection of the first hydraulic switch and the second hydraulic switch;
when the steering control part rotates leftwards, the first hydraulic switch swings backwards, meanwhile, the second hydraulic switch swings forwards, the left crawler moves backwards, and the right crawler moves forwards, so that the left rotation of the tractor is realized;
when the steering control part rotates rightwards, the first hydraulic switch deflects forwards, the second hydraulic switch deflects backwards, the left crawler belt advances forwards, the right crawler belt retreats, and the tractor turns rightwards.
Further, the steering input end comprises a first steering rod, and the middle part of the first steering rod is rotatably connected to the direction output end;
the first steering output end comprises a first steering rod, a second steering rod and a third steering rod, the first steering rod is connected to one end of the first steering rod, the second steering rod is connected to the other end of the first steering rod, the second steering rod is rotatably connected to the steering gear, the third steering rod is rotatably connected to the other end of the second steering rod, and the other end of the third steering rod is rotatably connected to the first hydraulic switch;
the second steering output end comprises a fourth reversing rod, a fifth reversing rod and a sixth reversing rod, the fourth reversing rod is rotatably connected to the other end of the first reversing rod, the fifth reversing rod is rotatably connected to the other end of the fourth reversing rod, the fifth reversing rod is rotatably connected to the steering gear, the sixth reversing rod is rotatably connected to the other end of the fifth reversing rod, and the other end of the sixth reversing rod is rotatably connected to the second hydraulic switch.
Furthermore, a reversing shaft is arranged on the side surface of the steering gear box, and the second reversing rod and the fifth reversing rod are respectively connected to the reversing shaft in a rotating mode.
Further, the steering control portion comprises a sleeve, a universal joint and a steering wheel, one end of the sleeve is connected to the direction input end, and the other end of the steering wheel and the other end of the sleeve are connected through the universal joint in a universal mode.
Further, the sleeve is keyed to the directional input.
Furthermore, a slide way is arranged on the tractor frame along the walking direction, and the steering gear is arranged on the slide way in a sliding mode.
Further, a seat base is arranged on the tractor frame and used for mounting a seat.
Further, a speed change portion is provided on the seat base for changing the traveling speeds of the left-side crawler belt and the right-side crawler belt.
Further, the speed change part comprises a first speed change rocker, a second speed change rocker, a third speed change rocker and a fourth speed change rocker, the first speed change rocker is rotatably connected to the side surface of the seat base, the second speed change rocker is rotatably connected to one end of the first speed change rocker, the third speed change rocker is rotatably connected to the other end of the second speed change rocker, the third speed change rocker is rotatably connected to the side surface of the seat base, the fourth speed change rocker is rotatably connected to the other end of the third speed change rocker, and the other end of the fourth speed change rocker is rotatably connected to the side surface of the steering gear;
when the first speed change rocker swings forwards, the steering gear slides forwards along the slide way, and then the first hydraulic switch and the second hydraulic switch are driven by the steering part to simultaneously increase the forward swing amplitude or reduce the backward swing amplitude so as to realize the forward acceleration or backward deceleration of the tractor;
when the first speed change rocker swings backwards, the steering gear slides backwards along the slide way, and then the first hydraulic switch and the second hydraulic switch are driven by the steering part to simultaneously increase the forward swing amplitude or reduce the backward swing amplitude so as to realize backward acceleration or forward deceleration of the tractor.
Furthermore, a first variable speed rotating shaft is arranged on the side surface of the seat base, and the first variable speed rocker is rotatably connected to the first variable speed rotating shaft; and/or a second variable-speed rotating shaft is arranged on the side surface of the seat base, and the third variable-speed rocker is rotatably connected to the second variable-speed rotating shaft.
The invention has the advantages that:
the plurality of rods of the steering part are linked, hydraulic steering or a steering gearbox is not needed, when the crawler tractor steers, the crawler on one side can run in the forward direction, the crawler on the other side runs in the reverse direction, and the turning radius is small; the steering control of the tractor is realized, the simplicity and high efficiency of the whole structure are ensured, the convenience in operation and maintenance is improved, and the economy is better;
the plurality of rocking bars of the speed changing part are used for linkage, so that the tractor can be accelerated or decelerated without frequent braking, and the service life is effectively prolonged.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic view of the installation of the present invention.
In the figure: 1-a tractor frame, 2-a steering gear, 201-a steering gear input end, 202-a steering gear output end, 203-a reversing shaft, 3-a first hydraulic pump, 301-a first hydraulic switch, 4-a second hydraulic pump, 401-a second hydraulic switch, 5-a steering control part, 501-a sleeve, 502-a universal joint, 503-a steering wheel, 6-a steering part, 601-a first junction piece, 602-a first reversing rod, 603-a second reversing rod, 604-a third reversing rod, 605-a fourth reversing rod, 606-a fifth reversing rod, 607-a sixth reversing rod, 7-a slideway, 8-a seat base, 801-a first speed change rotating shaft, 802-a second speed change rotating shaft, 9-a seat, 10-a speed change part, 1001-a first speed change rocker, 1002-the second shift rocker, 1003-the third shift rocker, 1004-the fourth shift rocker.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
Referring to fig. 1-2, the present invention provides a steering mechanism of a crawler tractor, which comprises a tractor frame 1, a steering gear 2, a first hydraulic pump 3, a second hydraulic pump 4, a steering control part 5 and a steering part 6; the tractor frame 1 extends along the walking direction of the tractor; the steering gear box 2 is arranged on the tractor frame 1, a direction input end 201 is arranged at the top of the steering gear box 2, and a direction output end 202 is arranged on the side surface of the steering gear box 2; the first hydraulic pump 3 is arranged on the tractor frame 1 and used for controlling the left crawler track of the tractor to walk, and a first hydraulic switch 301 capable of swinging forwards and backwards is arranged on the first hydraulic pump 3; when the first hydraulic switch 301 deflects forwards, the first hydraulic pump 3 rotates forwards, the left crawler belt moves forwards, and otherwise, the left crawler belt moves backwards; the second hydraulic pump 4 is arranged on the tractor frame 1, is connected with the first hydraulic pump 3 in series and is used for controlling the crawler belt on the right side of the tractor to walk, and a second hydraulic switch 401 capable of swinging forwards and backwards is arranged on the second hydraulic pump 4; when the second hydraulic switch 401 deflects forwards, the second hydraulic pump 4 rotates forwards, the right crawler belt moves forwards, and otherwise, the right crawler belt moves backwards; a steering control unit 5 connected to a direction input terminal 201, the steering control unit 5 being rotatable left and right; the steering part 6 comprises a steering input end, a first steering output end and a second steering output end, the steering input end is connected to the direction output end 202, the first steering output end is connected between the steering input end and the first hydraulic switch 301, and the second steering output end is connected between the steering input end and the second hydraulic switch 401, so that synchronous deflection of the first hydraulic switch 301 and the second hydraulic switch 302 is realized.
When the steering control part 5 rotates leftwards, the first hydraulic switch 301 swings backwards, and meanwhile, the second hydraulic switch 401 swings forwards, the left crawler moves backwards, and the right crawler moves forwards, so that left steering of the tractor is realized; when the steering control part 5 rotates to the right, the first hydraulic switch 301 swings forwards, and meanwhile, the second hydraulic switch 401 swings backwards, so that the left crawler moves forwards, and the right crawler moves backwards, thereby realizing the right steering of the tractor; utilize turn to control portion 5 cooperation turn to portion 6 and realize turning to about the tractor, the opposite side track slows down when one side track accelerates to effectively reduce turning radius, still omit the arrangement of equipment such as hydraulic steering ware or steering gearbox, low cost and turn effectually.
The steering gear box 2 in the present application is a commonly used steering gear box in the prior art, and can be purchased in the market, and the internal structure thereof is not described herein; the first hydraulic pump 3 and the second hydraulic pump 4 are connected in series and then connected with a crawler traveling system, so that the principle of driving the crawler to travel is disclosed in the prior art, and therefore, the detailed description is omitted; the structure and the working principle of the hydraulic pump are also the prior art, the rotation direction of the hydraulic pump can be realized by controlling the positive deflection or the reverse deflection of the hydraulic switch, the output power of the hydraulic pump can be adjusted by controlling the deflection angle of the hydraulic switch, and the walking speed of the crawler belt can be adjusted.
In the present application, the structure of the turning portion 6 is specifically: the steering input end comprises a first steering rod 601, and the middle part of the first steering rod 601 is rotatably connected to the direction output end 202; the first steering output end comprises a first steering rod 602, a second steering rod 603 and a third steering rod 604, the first steering rod 602 is connected to one end of the first steering rod 601, the second steering rod 603 is connected to the other end of the first steering rod 602, the second steering rod 603 is rotatably connected to the steering gear 2, the third steering rod 604 is rotatably connected to the other end of the second steering rod 603, and the other end of the third steering rod 604 is rotatably connected to the first hydraulic switch 301; the second steering output end comprises a fourth steering rod 605, a fifth steering rod 606 and a sixth steering rod 607, the fourth steering rod 605 is rotatably connected to the other end of the first steering rod 601, the fifth steering rod 606 is rotatably connected to the other end of the fourth steering rod 605, the fifth steering rod 606 is rotatably connected to the steering gear box 2, the sixth steering rod 607 is rotatably connected to the other end of the fifth steering rod 606, and the other end of the sixth steering rod 607 is rotatably connected to the second hydraulic switch 401.
Because the first steering output end and the second steering output end are connected to two ends of the first steering member 601, when the steering gear 2 drives the first steering member 601 to rotate, the first steering output end and the second steering output end are respectively linked to provide opposite acting forces for the first hydraulic switch 301 and the second hydraulic switch 401, so that the first hydraulic pump 3 and the second hydraulic pump 4 are opposite in rotating direction.
In this application, in order to realize that second reversing lever 603 and fifth reversing lever 606 rotate with the same point, improve the control precision, 2 sides of steering gear are provided with reversing shaft 203, second reversing lever 603 and fifth reversing lever 606 rotate respectively and are connected in reversing shaft 203.
In the present application, the steering control portion 5 includes a sleeve 501, a universal joint 502, and a steering wheel 503, wherein one end of the sleeve 501 is connected to the direction input end 201, and the other end of the steering wheel 503 and the sleeve 501 are connected in a universal manner through the universal joint 502; as shown in fig. 1, the universal joint 502 enables the steering wheel 503 to rotate in place while swinging in the front-rear direction.
As an embodiment of the present application, the sleeve 501 is keyed to the directional input 201.
In the application, a slide way 7 is arranged on the tractor frame 1 along the walking direction, and the steering gear 2 is arranged on the slide way 7 in a sliding manner; a seat base 8 is arranged on the tractor frame 1, and the seat base 8 is used for mounting a seat 9; when the steering gear 2 moves forward or backward, the first steering output end and the second steering output end in the steering part 6 are driven to be linked respectively, and the first hydraulic switch 301 and the second hydraulic switch 302 swing forward or backward simultaneously.
In order to control the forward or backward movement of the steering gear 2, a transmission 10 is provided on the seat base 8 for changing the traveling speed of the left-side crawler belt and the right-side crawler belt.
Specifically, the speed changing portion 10 includes a first speed changing rocker 1001, a second speed changing rocker 1002, a third speed changing rocker 1003 and a fourth speed changing rocker 1004, the first speed changing rocker 1001 is rotatably connected to the side surface of the seat base 8, the second speed changing rocker 1002 is rotatably connected to one end of the first speed changing rocker 1001, the third speed changing rocker 1003 is rotatably connected to the other end of the second speed changing rocker 1002, the third speed changing rocker 1003 is rotatably connected to the side surface of the seat base 8, the fourth speed changing rocker 1004 is rotatably connected to the other end of the third speed changing rocker 1003, and the other end of the fourth speed changing rocker 1004 is rotatably connected to the side surface of the steering gear 2.
When the first gearshift rocker 1001 deflects forwards, the steering gear box 2 slides forwards along the slideway 7, and then the steering part 6 drives the first hydraulic switch 301 and the second hydraulic switch 401 to simultaneously increase the forward deflection amplitude or decrease the backward deflection amplitude so as to realize the forward acceleration or backward deceleration of the tractor; when the first speed change rocker 1001 deflects backwards, the steering gear box 2 slides backwards along the slideway 7, and then the steering part 6 drives the first hydraulic switch 301 and the second hydraulic switch 401 to simultaneously increase the forward deflection amplitude or decrease the backward deflection amplitude so as to realize backward acceleration or forward deceleration of the tractor; first variable speed rocker 1001 extends to seat 9 one side, makes things convenient for the gripping, realizes the speed of a plurality of rocker coordinated control tractors, is favorable to prolonging the life of stopper.
In order to realize stable rotation connection of each speed change rocker 1001, a first speed change rotating shaft 801 is arranged on the side surface of the seat base 8, and the first speed change rocker 1001 is rotatably connected with the first speed change rotating shaft 801; and/or a second speed change rotating shaft 802 is arranged on the side surface of the seat base 8, and the third speed change rocker 1003 is rotatably connected with the second speed change rotating shaft 802.
The implementation mode is as follows:
for example, when a tractor needs to be controlled to turn left in the forward process, the steering wheel 503 is rotated left, power is transmitted to the first connecting piece 601 through the steering gear 2, the first connecting piece 601 deflects forwards, the first connecting piece 601 pushes the first hydraulic switch 301 to deflect from forward to backward through the first reversing piece 602, the second reversing 603 and the third reversing piece 604 respectively, the left-side crawler belt decelerates, meanwhile, the first connecting piece 601 pulls the second hydraulic switch 401 through the fourth reversing piece 605, the fifth reversing piece 606 and the sixth reversing piece 607 respectively to increase the forward deflection amplitude, the right-side crawler belt accelerates, the crawler belts on both sides generate a speed difference, and the turning radius of the tractor is obviously reduced;
for example, when the tractor needs to be controlled to accelerate forward or decelerate backward, the first shift rocker 1001 is pushed forward, the steering gear 2 is driven to slide forward on the slideway 7 through the linkage of the second shift rocker 1002, the third shift rocker 1003 and the fourth shift rocker 1004, the steering gear 2 drives the first hydraulic switch 301 and the second hydraulic switch 401 through the steering part 6, the forward deflection amplitude is increased or the backward deflection amplitude is reduced, and the left and right tracks accelerate or decelerate simultaneously.
Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, and although the present invention has been described in detail with reference to examples, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, which should be covered by the claims of the present invention.
Claims (10)
1. The utility model provides a track tractor steering mechanism which characterized in that: comprises that
A tractor frame (1) extending along the walking direction of the tractor;
the steering gear box comprises a steering gear (2) arranged on a tractor frame (1), wherein the top of the steering gear (2) is provided with a direction input end (201), and the side surface of the steering gear (2) is provided with a direction output end (202);
the first hydraulic pump (3) is arranged on the tractor frame (1) and used for controlling the left crawler track of the tractor to walk, and a first hydraulic switch (301) capable of swinging forwards and backwards is arranged on the first hydraulic pump (3); when the first hydraulic switch (301) deflects forwards, the first hydraulic pump (3) rotates forwards, the left crawler belt moves forwards, and otherwise, the left crawler belt moves backwards;
the second hydraulic pump (4) is arranged on the tractor frame (1), is connected with the first hydraulic pump (3) in series and is used for controlling the right crawler of the tractor to walk, and a second hydraulic switch (401) capable of swinging forwards and backwards is arranged on the second hydraulic pump (4); when the second hydraulic switch (401) deflects forwards, the second hydraulic pump (4) rotates forwards, the right crawler belt moves forwards, and otherwise, the right crawler belt moves backwards;
a steering control unit (5) connected to a direction input end (201), the steering control unit (5) being rotatable in the left-right direction;
the steering part (6) comprises a steering input end, a first steering output end and a second steering output end, the steering input end is connected to the direction output end (202), the first steering output end is connected between the steering input end and the first hydraulic switch (301), and the second steering output end is connected between the steering input end and the second hydraulic switch (401) so as to realize synchronous deflection of the first hydraulic switch (301) and the second hydraulic switch (302);
when the steering control part (5) rotates leftwards, the first hydraulic switch (301) swings backwards, and meanwhile, the second hydraulic switch (401) swings forwards, the left crawler moves backwards, and the right crawler moves forwards, so that left turning of the tractor is realized;
when the steering control part (5) rotates rightwards, the first hydraulic switch (301) deflects forwards, meanwhile, the second hydraulic switch (401) deflects backwards, the left crawler belt advances forwards, the right crawler belt retreats, and the tractor turns rightwards.
2. The track tractor steering mechanism of claim 1, wherein:
the steering input end comprises a first steering rod (601), and the middle part of the first steering rod (601) is rotationally connected with the direction output end (202);
the first steering output end comprises a first steering rod (602), a second steering rod (603) and a third steering rod (604), the first steering rod (602) is connected to one end of the first steering rod (601), the second steering rod (603) is connected to the other end of the first steering rod (602), the second steering rod (603) is rotatably connected to the steering gear (2), the third steering rod (604) is rotatably connected to the other end of the second steering rod (603), and the other end of the third steering rod (604) is rotatably connected to the first hydraulic switch (301);
the second steering output end comprises a fourth reversing rod (605), a fifth reversing rod (606) and a sixth reversing rod (607), the fourth reversing rod (605) is rotatably connected to the other end of the first reversing rod (601), the fifth reversing rod (606) is rotatably connected to the other end of the fourth reversing rod (605), the fifth reversing rod (606) is rotatably connected to the steering gear (2), the sixth reversing rod (607) is rotatably connected to the other end of the fifth reversing rod (606), and the other end of the sixth reversing rod (607) is rotatably connected to the second hydraulic switch (401).
3. The track tractor steering mechanism of claim 2, wherein: a reversing shaft (203) is arranged on the side face of the steering gear box (2), and the second reversing rod (603) and the fifth reversing rod (606) are respectively connected to the reversing shaft (203) in a rotating mode.
4. The track tractor steering mechanism of any one of claims 1 to 3, wherein: the steering control portion (5) comprises a sleeve (501), a universal joint (502) and a steering wheel (503), one end of the sleeve (501) is connected to the direction input end (201), and the other end of the steering wheel (503) is in universal connection with the other end of the sleeve (501) through the universal joint (502).
5. The track tractor steering mechanism of claim 4, wherein: the sleeve (501) is connected with the direction input end (201) in a key mode.
6. The track tractor steering mechanism of any one of claims 1 to 3, wherein: the tractor is characterized in that a slide way (7) is arranged on the tractor frame (1) along the walking direction, and the steering gear (2) is arranged on the slide way (7) in a sliding mode.
7. The track tractor steering mechanism of claim 6, wherein: be provided with seat base (8) on tractor frame (1), seat base (8) are used for installing seat (9).
8. The track tractor steering mechanism of claim 7, wherein: the seat base (8) is provided with a speed changing part (10) for changing the walking speed of the left crawler belt and the right crawler belt.
9. The track tractor steering mechanism of claim 8, wherein: the speed changing part (10) comprises a first speed changing rocker (1001), a second speed changing rocker (1002), a third speed changing rocker (1003) and a fourth speed changing rocker (1004), the first speed changing rocker (1001) is rotatably connected to the side surface of the seat base (8), the second speed changing rocker (1002) is rotatably connected to one end of the first speed changing rocker (1001), the third speed changing rocker (1003) is rotatably connected to the other end of the second speed changing rocker (1002), the third speed changing rocker (1003) is rotatably connected to the side surface of the seat base (8), the fourth speed changing rocker (1004) is rotatably connected to the other end of the third speed changing rocker (1003), and the other end of the fourth speed changing rocker (1004) is rotatably connected to the side surface of the steering gear (2);
when the first speed change rocker (1001) deflects forwards, the steering gear (2) slides forwards along the slide way (7), and then the steering part (6) drives the first hydraulic switch (301) and the second hydraulic switch (401) to simultaneously increase the forward deflection amplitude or reduce the backward deflection amplitude so as to realize the forward acceleration or backward deceleration of the tractor;
when the first speed change rocker (1001) deflects backwards, the steering gear (2) slides backwards along the slide way (7), and then the steering part (6) drives the first hydraulic switch (301) and the second hydraulic switch (401) to simultaneously increase the backward deflection amplitude or reduce the forward deflection amplitude so as to realize backward acceleration or forward deceleration of the tractor.
10. The track tractor steering mechanism of claim 9, wherein: a first speed change rotating shaft (801) is arranged on the side face of the seat base (8), and the first speed change rocker (1001) is rotatably connected to the first speed change rotating shaft (801); and/or a second speed change rotating shaft (802) is arranged on the side surface of the seat base (8), and the third speed change rocker (1003) is rotatably connected with the second speed change rotating shaft (802).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210570338.5A CN115107872A (en) | 2022-05-24 | 2022-05-24 | Steering mechanism of crawler tractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210570338.5A CN115107872A (en) | 2022-05-24 | 2022-05-24 | Steering mechanism of crawler tractor |
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| Publication Number | Publication Date |
|---|---|
| CN115107872A true CN115107872A (en) | 2022-09-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210570338.5A Pending CN115107872A (en) | 2022-05-24 | 2022-05-24 | Steering mechanism of crawler tractor |
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| CN (1) | CN115107872A (en) |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09207806A (en) * | 1996-02-06 | 1997-08-12 | Kubota Corp | Steering operating device for crawler traveling type working vehicle |
| US5921335A (en) * | 1997-05-22 | 1999-07-13 | Deere & Company | Steering control system for tracked vehicle |
| JP2001010531A (en) * | 1997-09-16 | 2001-01-16 | Yanmar Agricult Equip Co Ltd | Moving agricultural machine |
| CN102649448A (en) * | 2012-04-17 | 2012-08-29 | 高红 | Hydraulic steering wheel planetary steering crawler tractor |
| CN109417871A (en) * | 2017-08-24 | 2019-03-05 | 中联重机浙江有限公司 | A kind of rotary cultivator |
| CN111497953A (en) * | 2020-05-25 | 2020-08-07 | 浙江工业大学之江学院 | Double-drive type electric mud flat vehicle |
| CN112606903A (en) * | 2021-01-25 | 2021-04-06 | 第一拖拉机股份有限公司 | Mechanical-electrical-hydraulic integrated control crawler tractor steering system |
-
2022
- 2022-05-24 CN CN202210570338.5A patent/CN115107872A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09207806A (en) * | 1996-02-06 | 1997-08-12 | Kubota Corp | Steering operating device for crawler traveling type working vehicle |
| US5921335A (en) * | 1997-05-22 | 1999-07-13 | Deere & Company | Steering control system for tracked vehicle |
| JP2001010531A (en) * | 1997-09-16 | 2001-01-16 | Yanmar Agricult Equip Co Ltd | Moving agricultural machine |
| CN102649448A (en) * | 2012-04-17 | 2012-08-29 | 高红 | Hydraulic steering wheel planetary steering crawler tractor |
| CN109417871A (en) * | 2017-08-24 | 2019-03-05 | 中联重机浙江有限公司 | A kind of rotary cultivator |
| CN111497953A (en) * | 2020-05-25 | 2020-08-07 | 浙江工业大学之江学院 | Double-drive type electric mud flat vehicle |
| CN112606903A (en) * | 2021-01-25 | 2021-04-06 | 第一拖拉机股份有限公司 | Mechanical-electrical-hydraulic integrated control crawler tractor steering system |
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