CN216034718U - Bidirectional operation cab and bidirectional driving tractor - Google Patents

Abstract

The utility model provides a bidirectional operation cab and a bidirectional driving tractor, which comprises: two-way driver's cabin, forward steering mechanism, reverse steering mechanism and seat, forward steering mechanism installs the front side at two-way driver's cabin, and reverse steering mechanism installs the rear side at two-way driver's cabin, and reverse steering mechanism is connected with forward steering mechanism, and the rotatable setting of seat just is located between forward steering mechanism and the reverse steering mechanism at two-way driver's cabin middle part. By designing the bidirectional operation cab with the vehicle body, the bidirectional cab, the forward driving mechanism and the reverse driving mechanism, the bidirectional operation cab and the control system are designed on the basis of the conventional forward driving tractor, the bidirectional operation cab is formed, and bidirectional driving operation is met.

Description

Bidirectional operation cab and bidirectional driving tractor

Technical Field

The utility model relates to the technical field of agricultural machinery, in particular to a bidirectional operation cab and a bidirectional driving tractor.

Background

At present, domestic high-horsepower tractors are designed in a matching mode for meeting the requirement of forward conventional driving operation of rear-mounted machines, if the rear-mounted machines are required to be driven reversely, such as silage machines and other machines which need to be matched with power output, a driver can only engage in a reverse gear, the side body and the head are rotated for operation, the operation difficulty is high, the safety is extremely low, the driver is extremely easy to fatigue, and the long-time reverse driving operation cannot be met. The existing tractor has limited driving space, is designed for meeting forward conventional driving, has narrow and small cab space, can only be matched with one set of driving control system, can only meet forward conventional driving, cannot meet long-time reverse driving operation, can only be hung into a reverse gear by a driver if the driver wants to reverse driving, and is operated by turning the side body and the head for a short time, so that the safety is extremely low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem of the prior art and provides a bidirectional operation cab and a bidirectional driving tractor.

The technical scheme for solving the technical problems is as follows: a bi-directionally operated cab, comprising: two-way driver's cabin, forward steering mechanism, reverse steering mechanism and seat, forward steering mechanism installs the front side at two-way driver's cabin, and reverse steering mechanism installs the rear side at two-way driver's cabin, and reverse steering mechanism is connected with forward steering mechanism, and the rotatable setting of seat just is located between forward steering mechanism and the reverse steering mechanism at two-way driver's cabin middle part.

The utility model has the beneficial effects that: by designing the bidirectional operation cab with the vehicle body, the bidirectional cab, the forward driving mechanism and the reverse driving mechanism, the bidirectional operation cab and the control system are designed on the basis of the conventional forward driving tractor, the bidirectional operation cab is formed, and bidirectional driving operation is met.

Furthermore, a steering wheel and a hydraulic steering reversing valve for switching the forward driving steering machine column and the reverse driving steering machine column are further arranged in the two-way cab, the steering wheel is detachably mounted on the forward driving mechanism or detachably mounted on the reverse driving mechanism, the hydraulic steering reversing valve is mounted on the front side of the two-way cab, and the forward driving steering machine column in the forward driving mechanism is connected with the reverse driving steering machine column in the reverse driving mechanism through the hydraulic steering reversing valve.

Further, the forward driving mechanism includes: a forward driving direction machine pipe column containing a steering gear, a forward driving shuttle type gear shifting operation, a forward driving clutch operation, a forward driving brake operation, a forward driving instrument platform, a forward driving electronic foot accelerator and a forward driving speed change operation, wherein the forward driving direction machine pipe column is positioned in the middle of the front side of a bidirectional cab, the forward driving direction machine pipe column is connected with a steering oil cylinder, the forward driving shuttle type gear shifting operation and the forward driving speed change operation are positioned in the middle of the bidirectional cab and positioned at one side of a seat, the forward driving shuttle type gear shifting operation is connected with a forward driving shuttle type gear operating mechanism, the forward driving speed change operation penetrates through the bidirectional cab and is connected with a gear box, the forward driving instrument platform is positioned in the middle of the front side of the bidirectional cab and positioned below the forward driving direction machine pipe column, the forward driving clutch operation, the forward driving brake operation and the forward driving electronic foot accelerator are positioned at the bottom of the front side of the bidirectional cab and positioned below the forward driving instrument platform, the forward driving clutch operation is connected with the forward clutch mechanism, the forward driving brake operation is connected with the forward brake mechanism, and the forward driving electronic foot accelerator is connected with the engine.

Furthermore, a forward driving instrument and a forward driving ignition lock are arranged on the forward driving instrument platform and are connected with the engine.

Further, the reverse driving mechanism includes: a reverse driving brake operation, a reverse driving clutch operation, a reverse driving electronic foot accelerator, a reverse driving direction machine pipe column containing a steering gear, a reverse driving shuttle type gear shifting operation and a reverse driving instrument board, wherein a reverse driving operation box is arranged at the rear side of the two-way driving cab, the reverse driving brake operation, the reverse driving clutch operation, the reverse driving electronic foot accelerator and the reverse driving direction machine pipe column are arranged on the reverse driving operation box, the reverse driving shuttle type gear shifting operation is arranged on the reverse driving direction machine pipe column, the reverse driving instrument board is arranged at the rear side of the two-way driving cab, the reverse driving direction machine pipe column is positioned at the middle part of the rear side of the two-way driving cab, the reverse driving instrument board is positioned below the reverse driving direction machine pipe column, the reverse driving brake operation, the reverse driving clutch operation and the reverse driving electronic foot accelerator are positioned at the bottom of the rear side of the two-way cab and positioned below the reverse driving instrument board, the reverse driving brake control is connected with the reverse brake mechanism, the reverse driving clutch control is connected with the reverse clutch mechanism, the reverse driving electronic foot throttle is connected with the engine, the reverse driving steering machine pipe column is connected with the steering oil cylinder, and the reverse driving shuttle type gear shifting control is connected with the reverse shuttle type gear control mechanism.

Further, a forward and reverse driving foot accelerator control switch, a reverse driving ignition lock and a reverse driving instrument are mounted on the reverse driving instrument board, the forward and reverse driving foot accelerator control switch is connected with the forward driving electronic foot accelerator and the reverse driving electronic foot accelerator, and the reverse driving ignition lock and the reverse driving instrument are connected with the engine.

Further, the bidirectional cab includes: the front upper beam of the cab, the left door frame of the cab, the left mudguard tile of the cab, the front panel of the cab, the front floor of the cab, the right door frame of the cab, the rear floor of the cab, the right mudguard tile of the cab, the lower beam of the rear windshield of the cab and the rear upper beam of the cab, wherein the front panel of the cab, the left door frame of the cab and the right door frame of the cab are vertically arranged on the front floor of the cab, the front panel of the cab is positioned between the left door frame of the cab and the right door frame of the cab, two ends of the front panel of the cab are correspondingly connected with the left door frame of the cab and the right door frame of the cab, the front upper beam of the cab is horizontally arranged above the front panel of the cab, two ends of the front upper beam of the cab are respectively connected with the left door frame of the cab and the right door frame of the cab, the front floor of the cab is connected with the rear floor of the cab, the front floor of the cab is positioned at the front side of the rear floor of the cab, the rear floor of the cab is connected with the reverse driving control box, the rear floor of the cab is positioned on the front side of the reverse driving control box, the left mudguard tile and the right mudguard tile of the cab are correspondingly arranged on two sides of the rear floor of the cab, and the lower cross beam of the rear windshield of the cab and the upper cross beam of the rear cab are horizontally arranged above the reverse driving control box.

In addition, the utility model also provides a bidirectional driving tractor which comprises a tractor body and any one bidirectional operating cab, wherein the bidirectional operating cab is arranged on the tractor body, and the forward driving mechanism and the reverse driving mechanism are respectively connected with a transmission system of the tractor body and control the tractor body to operate in the forward direction or the reverse direction.

Further, the transmission system of the vehicle body includes: the engine, a bracket, the front axle, the riser, power output shaft, the gearbox, the rear axle, two-way driver's cabin, the engine, the gearbox is installed on the bracket, the front axle is installed in the below of bracket and is connected with steering cylinder and gearbox, two-way driver's cabin is located the rear of engine, the gearbox is located the bottom of two-way driver's cabin and is connected with the engine, the rear axle is installed at the both ends of gearbox and is connected with the gearbox, the riser is installed at the rear side top of gearbox and is connected with the gearbox, power output shaft installs the rear end at the gearbox and is connected with the gearbox.

Furthermore, the free end of the lifter is hinged to one end of the suspension system, the other end of the suspension system is hinged to a rear axle, rear wheels are correspondingly mounted at two ends of the rear axle respectively and are connected with a gearbox, front wheels are correspondingly mounted at two ends of the front axle respectively and are connected with steering cylinders, mud guards are mounted at positions, corresponding to the rear wheels, of the bottom of the bidirectional cab, a cab top cover is mounted at the top end of the bidirectional cab, the front axle is connected with the gearbox through a four-wheel drive transmission shaft, the rear end of the engine is connected with a silencer and an air filter respectively, and a hood is mounted above the engine.

Drawings

Fig. 1 is a schematic structural diagram of a bidirectional operation cab provided by the utility model.

Fig. 2 is a second schematic structural view of the two-way operation cab provided by the present invention.

Fig. 3 is a third schematic structural view of the bidirectional operation cab provided by the utility model.

Fig. 4 is a fourth schematic structural view of the bidirectional operation cab provided by the present invention.

Fig. 5 is a fifth schematic structural view of the bidirectional operation cab provided by the present invention.

Fig. 6 is a sixth schematic structural view of the bidirectional operation cab provided by the present invention.

Fig. 7 is a seventh schematic structural view of the bidirectional operation cab provided by the present invention.

Fig. 8 is an eighth schematic structural view of the bidirectional operation cab provided by the present invention.

Fig. 9 is a schematic structural diagram of a bidirectional brake system provided by the present invention.

Fig. 10 is a second structural schematic diagram of the bi-directional control braking system provided by the present invention.

Fig. 11 is a third structural schematic diagram of a bi-directional control braking system provided by the present invention.

FIG. 12 is a fourth schematic structural diagram of the bi-directional control braking system provided by the present invention.

FIG. 13 is a fifth schematic structural view of a bi-directional control braking system according to the present invention.

FIG. 14 is a sixth schematic structural view of a bi-directional control braking system according to the present invention.

Fig. 15 is a schematic structural diagram of a bidirectional control clutch device provided by the utility model.

Fig. 16 is a schematic structural diagram of a two-way shift operating system according to the present invention.

Fig. 17 is a second structural schematic diagram of the two-way shift operating system provided in the present invention.

Fig. 18 is a third structural schematic diagram of the two-way shift operating system provided by the present invention.

FIG. 19 is a fourth schematic structural diagram of the two-way shift operating system provided by the present invention.

Fig. 20 is a fifth structural schematic diagram of the two-way shift operating system provided by the present invention.

FIG. 21 is a sixth schematic structural view of the two-way shift operating system provided in the present invention.

Fig. 22 is a seventh schematic structural diagram of the two-way shift operating system according to the present invention.

Fig. 23 is a schematic structural diagram of a hydraulic steering system according to the present invention.

Fig. 24 is a second schematic structural diagram of a hydraulic steering system according to the present invention.

Fig. 25 is a third schematic structural diagram of a hydraulic steering system according to the present invention.

Fig. 26 is a schematic view of a vehicle swivel seat according to the present invention.

Fig. 27 is a second schematic view of a vehicle swivel seat according to the present invention.

Fig. 28 is a third schematic view of a vehicle swivel seat according to the present invention.

FIG. 29 is a fourth schematic view of a vehicle swivel seat according to the present invention.

FIG. 30 is a fifth schematic view of a vehicle swivel seat according to the present invention.

FIG. 31 is a sixth schematic view of a vehicle swivel seat according to the present invention.

Fig. 32 is a seventh schematic view of a vehicle swivel seat according to the present invention.

Fig. 33 is an eighth schematic view of a vehicle swivel seat according to the present invention.

Fig. 34 is a ninth schematic view of a vehicle swivel seat according to the present invention.

Fig. 35 is a tenth of a schematic structural diagram of a vehicle swivel seat according to the present invention.

Fig. 36 is an eleventh schematic view of a vehicle swivel seat according to the present invention.

Fig. 37 is a twelfth schematic view of a vehicle swivel seat according to the present invention.

The reference numbers illustrate: 1. a vehicle body; 2. a bidirectional cab; 3. a forward steering mechanism; 4. a reverse steering mechanism; 5. an engine; 6. a bracket; 7. a front axle; 8. a lifter; 9. a power take-off shaft; 10. a gearbox; 11. a rear axle; 12. a suspension system; 13. a rear wheel; 14. a front wheel; 15. a fender; 16. a cab roof; 17. a four-wheel drive transmission shaft; 18. a muffler; 19. an air filter; 20. a hood; 21. a forward driving direction machine string; 22. a forward drive shuttle shift maneuver; 23. forward driving clutch operation; 24. a forward driving braking maneuver; 25. a forward direction driving instrument desk; 26. driving an electronic foot accelerator forward; 27. forward driving gear shifting operation; 28. a forward steering instrument; 29. a forward driving ignition lock; 30. reverse driving brake operation; 31. reverse driving clutch operation; 32. reversely driving the electronic foot accelerator; 33. a reverse drive steering column; 34. reverse drive shuttle shift maneuvers; 35. a reverse drive dashboard; 36. a reverse drive steering box; 37. a forward and reverse driving foot accelerator control switch; 38. a reverse drive ignition lock; 39. a reverse steering instrument; 40. a seat; 41. a steering wheel; 42. a hydraulic steering reversing valve; 43. a cab front upper beam; 44. a cab left door frame; 45. a left mudguard tile of the cab; 46. a cab dash panel; 47. a cab front floor; 48. a cab right door frame; 49. a cab rear floor; 50. a cab right mudguard tile; 51. a lower crossbeam of a rear windshield of the cab; 52. a cab rear upper cross beam; 53. a chassis system; 54. a cab floor seat shaft sleeve; 56. a forward braking mechanism; 57. a reverse braking mechanism; 58. a reverse pedal assembly; 59. a middle rotating shaft assembly; 60. a pedal mounting bracket; 61. a reverse left brake pedal; 62. a reverse right brake pedal; 63. a brake pedal spindle; 64. a brake drum rocker arm; 65. a first pin shaft; 66. welding the right rocker arm; 67. an intermediate rotating shaft; 68. welding the left rocker arm; 69. a gasket; 70. a brake pull rod; 71. a right-hand brake pedal; 72. a positive left brake pedal; 73. a second pin shaft; 74. a first transmission assembly; 75. a second transmission assembly; 76. a first pull rod; 77. welding the first rotating shaft rocker arm; 78. a second pull rod; 79. welding the rocker arm of the second rotating shaft; 80. a third pull rod; 81. a fourth pull rod; 82. welding the third rotating shaft rocker arm; 83. a fifth pull rod; 84. welding the rocker arm of the fourth rotating shaft; 85. a sixth pull rod; 86. a brake pump mounting bracket; 87. a brake pump; 88. a brake oil can; 89. a brake; 90. a forward clutch mechanism; 91. a reverse clutch mechanism; 92. a transmission mechanism; 93. a shifting fork is clutched; 94. a first link fork; 95. a second clevis; 96. a clutch rocker shaft weldment; 97. a clutch rocker arm; 98. a first chute; 99. a second chute; 100. a reverse clutch pedal; 101. a first link; 102. a first rocker arm weldment; 103. a second link; 104. a second rocker arm weldment; 105. a third link; 106. a booster; 107. a first return spring; 108. a forward clutch pedal; 109. a fourth link; 110. a first rocker arm; 111. a second rocker arm; 112. a second return spring; 113. a forward shuttle gear operating mechanism; 114. a reverse shuttle shift operating mechanism; 115. a first rocker arm; 116. a first joystick; 117. a first rotating shaft; 118. a first pull rod; 119. a second rocker arm; 120. a second rotating shaft; 121. a second pull rod; 122. a first handle ball; 123. a sealing seat; 124. a second joystick; 125. a third rotating shaft; 126. a cable member; 127. a cable; 128. sealing sleeves; 129. a fixing plate; 130. a second handle ball; 131. a steering cylinder; 132. a forward steering gear; 133. a reverse diverter; 134. a hydraulic mechanism; 135. a switching mechanism; 136. a power source; 137. a hydraulic pump; 138. a hydraulic oil tank; 139. an oil absorption filter; 140. a two-position three-way ball valve; 141. a first two-position two-way ball valve; 142. a second two-position two-way ball valve; 143. a shuttle valve; 144. a priority valve; 145. a seat body; 146. a vehicle body floor; 147. a rotation mechanism; 148. a rotary shaft seat; 149. rotating the shaft sleeve; 150. a reinforcing plate; 151. a baffle plate; 152. a shaft sleeve hole; 153. a mounting seat; 154. an upper turntable; 155. a rotating shaft; 156. reinforcing ribs; 157. a lower turntable; 158. a sleeve; 159. a limiting mechanism; 160. a limiting bracket; 161. a limiting rod; 162. a limiting hole; 163. v-shaped locking holes.

Detailed Description

The principles and features of this invention are described below in conjunction with the following drawings, which are set forth by way of illustration only and are not intended to limit the scope of the utility model.

As shown in fig. 1 to 8, an embodiment of the present invention provides a bidirectional operation cab, including: two-way driver's cabin 2, forward steering mechanism 3, reverse steering mechanism 4 and seat 40, forward steering mechanism 3 installs in the front side of two-way driver's cabin 2, and reverse steering mechanism 4 installs in the rear side of two-way driver's cabin 2, and reverse steering mechanism 4 is connected with forward steering mechanism 3, and the rotatable setting of seat 40 is in two-way driver's cabin 2 middle part and is located between forward steering mechanism 3 and the reverse steering mechanism 4.

By designing the bidirectional operation cab with the vehicle body, the bidirectional cab, the forward driving mechanism and the reverse driving mechanism, the bidirectional operation cab and the control system are designed on the basis of the conventional forward driving tractor, the bidirectional operation cab is formed, and bidirectional driving operation is met. The forward driving mechanism and the reverse driving mechanism can adopt the existing driving mechanism, and only two driving mechanisms are reversely assembled.

In the figure, a and B represent the direction of view and the viewing angle, and arrows represent the viewing direction. The engine 5 is arranged at the front part of the bidirectional operation cab, a bracket 6 is assembled below the bidirectional operation cab, a gearbox 10 is assembled at the rear end of the bidirectional operation cab, a rear axle 11 is assembled at two ends of the gearbox 10, a lifter 8, a bidirectional cab 2 and an operating system are assembled at the upper part of the gearbox 10, a power output shaft 9 is assembled at the rear end of the gearbox 10, a suspension system 12 is assembled on a shell of the lifter 8 and the rear axle 11, rear wheels 13 are assembled at the left end and the right end of the rear axle 11, a front axle 7 is assembled below the bracket 6, front wheels 14 are assembled at the left end and the right end of the front axle 7, fenders 15 are assembled at the left side and the right side of the bidirectional cab 2 and the operating system, a cab top cover 16 covers the bidirectional cab 2 and the operating system, a four-wheel drive transmission shaft 17 is assembled between the gearbox 10 and the front axle 7, a silencer 18 and an air filter 19 are assembled at the rear end position of the engine 5, and a hood 20 covers the engine 5, so that the complete bidirectional operation cab is formed.

The tractor is connected with corresponding machines through a suspension system 12 in a matching mode, a power output shaft 9 is connected with a machine transmission system to provide power for the machine, a lifter 8 can lift and lower the machines, and a driver can carry out normal and reverse driving operation on the tractor according to requirements through a bidirectional cab 2 and an operating system.

The cab front upper cross beam 43, the cab left door framework 44, the cab left mudguard tile 45, the cab front coaming 46, the cab front floor 47, the cab right door framework 48, the cab rear floor 49, the cab right mudguard tile 50, the cab rear windshield lower cross beam 51, the reverse driving control box 36 and the cab rear upper cross beam 52 form an integral bidirectional cab framework through welding. Wherein, the reverse driving control box is a box-shaped structure consisting of an upper beam, a lower floor, a left side plate, a right side plate and a maintenance cover plate which are formed by sheet metal.

The forward driving steering column 21 (comprising a steering gear), the forward driving shuttle type gear shifting operation 22, the forward driving clutch operation 23, the forward driving brake operation 24 and the forward driving instrument platform 25 are arranged on a cab front wall plate 46 through corresponding supports, the forward driving instrument 28 and the forward driving ignition lock 29 are assembled on the forward driving instrument platform 25, the forward driving electronic foot accelerator 26 is arranged on a cab front floor 47, and the forward driving speed changing operation 27 penetrates through the cab front floor 47 to be connected with a chassis system 53, wherein the chassis system 53 comprises a gearbox, an engine, a bracket, a front axle, a rear axle and the like, and each forward driving transmission operation is connected with a corresponding rocker arm in the chassis through a mechanical pull rod to form a complete set of forward driving transmission, hydraulic and electric appliance operation systems of the tractor.

The reverse driving brake operation 30, the reverse driving clutch operation 31, the reverse driving electronic foot accelerator 32 and the reverse driving steering engine column 33 (including a steering gear) are assembled on a reverse driving operation box 36 through bolts, the reverse driving shuttle type gear shifting operation 34 is assembled on the reverse driving steering engine column 33 and the steering gear through bolts, a reverse driving instrument panel 35 is assembled on a lower beam 51 of a rear windshield of a cab through bolts, a forward and reverse driving foot accelerator control switch 37, a reverse driving ignition lock 38 and a reverse driving instrument 39 are assembled on the reverse driving instrument panel 35, and each transmission operation of the reverse driving is communicated with a corresponding rocker arm of the forward driving chassis through a mechanical pull rod or a flexible shaft mechanism so as to realize the linkage of the forward and reverse driving operation mechanisms.

The seat 40 is inserted into a cab floor seat shaft sleeve 54 through a rotating shaft, 360-degree rotation around the cab floor seat shaft sleeve 54 can be realized, a set of steering wheel 41 is shared in forward and reverse driving states of a bidirectional cab system, the seat can be assembled on a forward driving steering engine column 21 (comprising a steering gear) or a reverse driving steering engine column 33 (comprising the steering gear) through a lock nut, a set of hydraulic steering pipeline system is shared by front and rear steering gears, oil circuit switching of the front and rear steering gears is controlled through a hydraulic steering reversing valve 42, forward and reverse driving steering wheel operation is realized, and forward driving speed change operation is shared by forward and reverse driving.

When driving in the reverse direction, the seat 40 is rotated to the reverse direction state, the steering wheel 41 is assembled on the steering column 33 (including the steering gear) of the reverse driving steering machine through the locknut, the handle of the hydraulic steering reversing valve 42 is pulled to switch the steering to the reverse driving state, the forward and reverse driving foot accelerator control switch 37 is pressed to enable the reverse driving electronic foot accelerator 32 to be in the working state, and at the moment, the forward driving electronic foot accelerator 26 is in the cut-off state. When driving in the forward direction, the seat 40 is rotated to the forward direction, the steering wheel 41 is assembled on the column 21 (including the steering gear) of the forward driving steering machine through the locknut, the handle of the hydraulic steering reversing valve 42 is pulled to switch the steering to the forward driving state, the forward and reverse driving foot accelerator control switch 37 is pressed to enable the forward driving electronic foot accelerator 26 to be in the working state, and at the moment, the reverse driving electronic foot accelerator 32 is in the cut-off state.

On the basis of the existing forward driving tractor, only the driving cab and the control connecting system are subjected to forward and reverse matching design, core parts such as a gearbox and the like do not need to be changed, forward driving and speed changing control are shared by forward and reverse driving, the forward driving state is realized, the change is not needed, the structure is simple and reliable, and the cost is low. On the basis of the conventional forward cab, only the original back panel is adjusted into the reverse driving control box, so that the longitudinal expansion requirement of man-machine control is met, the cab layout and the overall structure do not need to be changed in a large area, the investment of cab tools and dies is greatly reduced, and the cost is reduced; the forward driving and the backward driving share one steering wheel, and can be quickly disassembled and exchanged; the forward and reverse driving is respectively provided with a set of steering gear and a steering column, a set of hydraulic steering pipeline is shared, the forward and reverse steering is switched by a steering switching valve, the forward and reverse driving shares a seat capable of rotating by 360 degrees, and the driving state is switched by the rotation of the seat.

Based on a forward conventional driving tractor, the bidirectional driving cab and the control connection system are only designed in a matching manner to realize bidirectional driving, and the bidirectional operation cab has the advantages of simple structure, reliability and low cost. On the basis of a conventional forward cab, a reverse driving control box is added at the rear part of the cab, so that the expansion of a longitudinal control space of reverse driving is realized; the bidirectional cab system consists of a bidirectional cab system, a bidirectional cab system and a bidirectional cab system, wherein the bidirectional cab system consists of a shuttle type gear shifting operation, a brake operation, a clutch operation, an electronic foot accelerator operation, an ignition lock operation, a steering machine pipe column (including a steering gear) and an instrument which are respectively arranged at the front and the rear, and a set of steering wheel, a forward driving speed change operation and a 360-degree rotary seat are shared; the reverse driving shuttle type gear shifting operation, the braking operation, the clutch operation, the electronic foot accelerator operation and the steering machine tubular column (comprising a steering gear) are highly integrated and assembled on a reverse driving operation box at the rear part of the cab; the forward and reverse state switching of the electronic foot accelerator and the steering oil way is controlled by an accelerator control switch and a hydraulic steering reversing valve; the forward and reverse clutch, brake and shuttle gear shift control share one set of chassis rocker arm system, and the forward and reverse control can be linked.

As shown in fig. 1 to 8, a steering wheel 41 and a hydraulic steering change valve 42 for switching between the forward driving steering column 21 and the reverse driving steering column 33 are further provided in the two-way cab 2, the steering wheel 41 is detachably mounted on the forward driving mechanism 3 or detachably mounted on the reverse driving mechanism 4, the hydraulic steering change valve 42 is mounted on the front side of the two-way cab 2, and the forward driving steering column 21 in the forward driving mechanism 3 is connected to the reverse driving steering column 33 in the reverse driving mechanism 4 through the hydraulic steering change valve 42. The seat is inserted into the shaft sleeve of the floor seat of the cab through the rotating shaft of the seat, the seat can rotate 360 degrees around the shaft sleeve, the switching of the driving state can be realized through the rotation of the seat, the problem of the layout of the seat in a narrow cab space is solved, and the utilization rate of the cab space is improved. The bidirectional operation cab shares a set of steering wheel in forward and reverse driving states, can be assembled on a forward driving steering machine pipe column or a reverse driving steering machine pipe column through a lock nut, the front steering gear and the rear steering gear share a set of hydraulic steering pipeline system, and the hydraulic steering reversing valve controls the oil way switching of the front steering gear and the rear steering gear to realize the forward and reverse driving steering wheel operation, and the forward driving variable speed operation is shared in forward and reverse driving. Forward, reverse driving shares a steering wheel, and the accessible is dismantled fast and is exchanged, has solved the demand of two-way operation in the narrow and small driver's cabin space.

As shown in fig. 1 to 8, the forward steering mechanism 3 includes: a forward driving direction machine column 21 containing a steering gear, a forward driving shuttle type gear shifting operation 22, a forward driving clutch operation 23, a forward driving brake operation 24, a forward driving instrument platform 25, a forward driving electronic foot accelerator 26 and a forward driving speed change operation 27, wherein the forward driving direction machine column 21 is positioned at the middle part of the front side of the bidirectional cab 2, the forward driving direction machine column 21 is connected with a steering oil cylinder 131, the forward driving shuttle type gear shifting operation 22 and the forward driving speed change operation 27 are positioned at the middle part of the bidirectional cab 2 and at one side of a seat 40, the forward driving shuttle type gear shifting operation 22 is connected with a forward driving shuttle type gear operating mechanism 113, the forward driving speed change operation 27 penetrates through the bidirectional cab 2 and is connected with a gearbox 10, the forward driving instrument platform 25 is positioned at the middle part of the front side of the bidirectional cab 2 and below the forward driving direction machine column 21, the forward driving clutch operation 23, The forward driving brake operation 24 and the forward driving electronic foot accelerator 26 are positioned at the bottom of the front side of the bidirectional cab 2 and below a forward driving instrument desk 25, the forward driving clutch operation 23 is connected with the forward clutch mechanism 23, the forward driving brake operation 24 is connected with the forward brake mechanism 56, and the forward driving electronic foot accelerator 26 is connected with the engine 5. Each transmission operation of forward driving is connected with a corresponding rocker arm in the chassis through a mechanical pull rod to form a forward driving transmission, hydraulic and electric appliance operation system of the tractor.

As shown in fig. 1 to 8, the forward direction instrument panel 25 is provided with a forward direction instrument 28 and a forward direction ignition lock 29, and the forward direction instrument 28 and the forward direction ignition lock 29 are connected to the engine 5. Be provided with forward steering meter and forward driving ignition lock on the forward steering meter platform, the driver of being convenient for controls the bidirectional operation driver's cabin, improves user experience.

As shown in fig. 1 to 8, the reverse steering mechanism 4 includes: a reverse driving brake operation 30, a reverse driving clutch operation 31, a reverse driving electronic foot accelerator 32, a reverse driving steering column 33 with a steering gear, a reverse driving shuttle type gear shift operation 34, a reverse driving instrument panel 35, a reverse driving operation box 36 installed at the rear side of the bidirectional cab 2, the reverse driving brake operation 30, the reverse driving clutch operation 31, the reverse driving electronic foot accelerator 32, the reverse driving steering column 33 installed on the reverse driving operation box 36, the reverse driving shuttle type gear shift operation 34 installed on the reverse driving steering column 33, the reverse driving instrument panel 35 installed at the rear side of the bidirectional cab 2, the reverse driving steering column 33 located at the rear middle part of the bidirectional cab 2, the reverse driving instrument panel 35 located below the reverse driving steering column 33, the reverse driving brake operation 30, the reverse driving clutch operation 31 and the reverse driving electronic foot accelerator 32 located at the rear bottom of the bidirectional cab 2 and located at the reverse driving Below the dashboard 35, the reverse drive brake actuation 30 is connected to the reverse brake mechanism 57, the reverse drive clutch actuation 31 is connected to the reverse clutch mechanism 91, the reverse drive electronic foot throttle 32 is connected to the engine 5, the reverse drive steering column 33 is connected to the steering cylinder 131, and the reverse drive shuttle shift actuation 34 is connected to the reverse shuttle shift actuation mechanism 114. The reverse driving control box is a box-shaped structure consisting of an upper cross beam, a lower floor, a left side plate, a right side plate and a maintenance cover plate which are formed by sheet metal. Each transmission control of the reverse driving is communicated with a corresponding rocker arm of the forward driving on the chassis through a mechanical pull rod or a flexible shaft mechanism, so that the linkage of the forward and reverse control mechanisms is realized, and a reverse driving transmission, hydraulic and electric appliance control system of the tractor is formed. On the basis of the existing forward driving tractor, only a driving cab and an operation connecting system are subjected to forward and reverse matching design, core parts such as a gearbox and the like do not need to be changed, forward driving and speed change operation are shared by forward and reverse driving, the forward driving state is realized, the change is not needed, the structure is simple and reliable, and the cost is low. The steering box is assembled on the rear part of the cab in a high-degree integration manner. On the basis of a conventional forward cab, a reverse driving control box is added on the rear side of the cab, so that the expansion of a longitudinal control space of reverse driving is realized.

As shown in fig. 1 to 8, the reverse drive dashboard 35 is provided with a forward/reverse drive foot throttle control switch 37, a reverse drive ignition lock 38, and a reverse drive instrument 39, the forward/reverse drive foot throttle control switch 37 is connected to the forward drive electronic foot throttle 26 and the reverse drive electronic foot throttle 32, and the reverse drive ignition lock 38 and the reverse drive instrument 39 are connected to the engine 5. The forward and reverse state switching of the electronic foot accelerator and the steering oil way is controlled by a forward and reverse driving foot accelerator control switch and a hydraulic steering reversing valve. The reverse driving instrument board is provided with the forward and reverse driving foot accelerator control switch, the reverse driving ignition lock and the reverse driving instrument, so that a driver can conveniently control the bidirectional operation cab, and the user experience is improved.

As shown in fig. 1 to 8, the bidirectional cab 2 includes: a cab front upper cross beam 43, a cab left door framework 44, a cab left mudguard tile 45, a cab front coaming 46, a cab front floor 47, a cab right door framework 48, a cab rear floor 49, a cab right mudguard tile 50, a cab rear windshield lower cross beam 51 and a cab rear upper cross beam 52, wherein the cab front coaming 46, the cab left door framework 44 and the cab right door framework 48 are vertically arranged on the cab front floor 47, the cab front coaming 46 is positioned between the cab left door framework 44 and the cab right door framework 48, two ends of the cab front coaming 46 are correspondingly connected with the cab left door framework 44 and the cab right door framework 48, the cab front upper cross beam 43 is horizontally arranged above the cab front coaming 46, two ends of the cab front upper cross beam 43 are respectively connected with the cab left door framework 44 and the cab right door framework 48, the cab front floor 47 is connected with a cab rear floor 49, the cab front floor 47 is positioned at the front side of the cab rear floor 49, the cab rear floor 49 is connected with the reverse driving control box 36, the cab rear floor 49 is positioned at the front side of the reverse driving control box 36, the cab left mudguard tile 45 and the cab right mudguard tile 50 are correspondingly arranged at the two sides of the cab rear floor 49, and the cab rear windshield lower cross beam 51 and the cab rear upper cross beam 52 are horizontally arranged above the reverse driving control box 36. The front upper cross beam of the cab, the left door framework of the cab, the left mudguard tile of the cab, the front coaming of the cab, the front floor of the cab, the right door framework of the cab, the rear floor of the cab, the right mudguard tile of the cab, the lower cross beam of the rear windshield of the cab, the reverse driving control box and the rear upper cross beam of the cab are welded to form the integral bidirectional cab. On the basis of the conventional forward cab, the original back panel is only adjusted to be the reverse driving control box, so that the longitudinal expansion requirement of man-machine control is met, the cab layout and the overall structure do not need to be changed in a large area, the investment of cab tools and dies is greatly reduced, and the cost is reduced.

In addition, the utility model also provides a bidirectional driving tractor which comprises a tractor body 1 and any one bidirectional operation cab, wherein the bidirectional operation cab 2 is installed on the tractor body 1, and the forward driving mechanism 3 and the reverse driving mechanism 4 are respectively connected with a transmission system of the tractor body and control the tractor body 1 to run in a forward direction or a reverse direction.

As shown in fig. 1 to 8, the transmission system of the vehicle body 1 includes: engine 5, bracket 6, front axle 7, riser 8, power output shaft 9, gearbox 10, rear axle 11, two-way driver's cabin 2, engine 5, gearbox 10 installs on bracket 6, front axle 7 installs in the below of bracket 6 and is connected with steering cylinder 131 and gearbox 10, two-way driver's cabin 2 is located the rear of engine 5, gearbox 10 is located the bottom of two-way driver's cabin 2 and is connected with engine 5, rear axle 11 installs at the both ends of gearbox 10 and is connected with gearbox 10, riser 8 installs at the rear side top of gearbox 10 and is connected with gearbox 10, power output shaft 9 installs the rear end at gearbox 10 and is connected with gearbox 10. The transmission system of the vehicle body with the engine, the bracket, the front axle, the lifter, the power output shaft, the gearbox and the rear axle is designed, so that the structure is optimized, and the installation and the maintenance of a bidirectional operation cab are facilitated.

As shown in fig. 1 to 8, the free end of the lifter 8 is hinged to one end of a suspension system 12, the other end of the suspension system 12 is hinged to a rear axle 11, rear wheels 13 are correspondingly mounted at two ends of the rear axle 11 respectively, the rear wheels 13 are connected to a transmission case 10, front wheels 14 are correspondingly mounted at two ends of a front axle 7 respectively, the front wheels 14 are connected to a steering cylinder 131, a fender 15 is mounted at a position corresponding to the rear wheels at the bottom of a bidirectional cab 2, a cab roof 16 is mounted at the top end of the bidirectional cab 2, the front axle 7 is connected to the transmission case 10 through a four-wheel drive transmission shaft 17, a muffler 18 and an air filter 19 are connected to the rear end of the engine 5 respectively, and a hood 20 is mounted above the engine 5. The tractor is connected with corresponding machines through a suspension system in a matching mode, the power output shaft is connected with the machine transmission system to provide power for the machine, the machine can be lifted and lowered by the lifter, and a driver can carry out normal and reverse normal driving operation on the tractor according to requirements through the bidirectional cab and the internal control component of the bidirectional cab.

The bidirectional operation cab is provided with a bidirectional operation brake system, a bidirectional operation clutch device, a bidirectional shuttle type gear operation system, a hydraulic steering system and a vehicle rotary seat structure. The structure is as follows:

as shown in fig. 9 to 14, the one, two-way operated brake system: a bi-directionally operated brake system comprising: a forward brake mechanism 56 and a reverse brake mechanism 57, the forward brake mechanism 56 and the reverse brake mechanism 57 being installed in the bidirectional cab, the reverse brake mechanism 57 being connected to the forward brake mechanism 56. The reverse drive brake actuation 30 is a reverse pedal assembly 58, and the reverse brake mechanism 57 includes: the middle rotating shaft assembly 59, the reverse pedal assembly 58 are arranged inside the rear side of the bidirectional cab 2, the middle rotating shaft assembly 59 is rotatably arranged at the bottom of the bidirectional cab 2, and the reverse pedal assembly 58 is connected with the forward braking mechanism 56 through the middle rotating shaft assembly 59. The reverse pedal assembly 58 includes: the brake pedal installation support 60, the reverse left brake pedal 61, the reverse right brake pedal 62, the brake pedal rotating shaft 63, the brake drum rocker arm 64 and the first pin shaft 65, the pedal installation support 60 is installed inside the rear side of the bidirectional cab, the brake pedal rotating shaft 63 is installed on the pedal installation support 60 in a rotating mode, the reverse left brake pedal 61 and the brake drum rocker arm 64 are fixedly installed on the brake pedal rotating shaft 63, one end of the reverse right brake pedal 62 is sleeved on the brake pedal rotating shaft 63 in a rotating mode, the reverse right brake pedal 62 is located between the reverse left brake pedal 61 and the brake drum rocker arm 64, the brake drum rocker arm 64 and the reverse right brake pedal 62 are connected with the forward brake mechanism 56, and the first pin shaft 65 is detachably inserted on the reverse left brake pedal 61 and the reverse right brake pedal 62.

The intermediate rotating shaft assembly 59 includes: the brake drum comprises a right rocker arm welding joint 66, a middle rotating shaft 67 and a left rocker arm welding joint 68, wherein the right rocker arm welding joint 66 is fixedly arranged on the middle rotating shaft 67, the left rocker arm welding joint 68 is rotatably arranged on the middle rotating shaft 67, the right rocker arm welding joint 66 is respectively connected with a brake drum rocker arm 64 and a forward braking mechanism 56, and the left rocker arm welding joint 68 is respectively connected with a reverse right brake pedal 62 and the forward braking mechanism 56. The left rocker arm seam 68 is located in the middle of the right rocker arm seam 66, a gasket 69 is arranged between the left rocker arm seam 68 and the right rocker arm seam 66, the gasket 69 is sleeved on the middle rotating shaft 67, two ends of the brake pedal rotating shaft 63 are rotatably installed on the pedal installation bracket 60 through needle bearings, the right rocker arm seam 66 is connected with the brake drum rocker arm 64 through a brake pull rod 70, and the left rocker arm seam 68 is connected with the reverse right brake pedal 62 through the brake pull rod 70. The forward driving brake maneuver 24 includes: forward right brake pedal 71, forward left brake pedal 72 and second round pin axle 73, forward right brake pedal 71 and forward left brake pedal 72 are installed inside the front side of two-way driver's cabin, right rocker arm seam 66 is connected with forward right brake pedal 71 through first transmission assembly 74, left rocker arm seam 68 is connected with forward left brake pedal 72 through second transmission assembly 75, second round pin axle 73 detachably inserts on forward left brake pedal 72 and forward right brake pedal 71.

The first transmission assembly 74 includes: the left brake pedal comprises a first pull rod 76, a first rotating shaft rocker arm welding part 77, a second pull rod 78, a second rotating shaft rocker arm welding part 79 and a third pull rod 80, wherein the right rocker arm welding part 66 is connected with the first pull rod 76, the first rotating shaft rocker arm welding part 77, the second pull rod 78, the second rotating shaft rocker arm welding part 79 and the third pull rod 80 are sequentially connected, and the third pull rod 80 is connected with the free end of the forward right brake pedal 71; the second transmission assembly 75 includes: the left rocker arm welding structure comprises a fourth pull rod 81, a third rotating shaft rocker arm welding 82, a fifth pull rod 83, a fourth rotating shaft rocker arm welding 84 and a sixth pull rod 85, the left rocker arm welding 68 is connected with the fourth pull rod 81, the third rotating shaft rocker arm welding 82, the fifth pull rod 83, the fourth rotating shaft rocker arm welding 84 and the sixth pull rod 85 are sequentially connected, and the sixth pull rod 85 is connected with the free end of the forward left brake pedal 72. The forward braking mechanism 56 includes: brake pump installing support 86, a pair of brake pump 87, brake oilcan 88 and stopper 89, brake pump installing support 86 and brake oilcan 88 are installed inside the front side of two-way driver's cabin 2, a pair of installation is on brake pump installing support 86, forward right brake pedal 71 and forward left brake pedal 72 rotate to be installed on brake pump installing support 86, forward right brake pedal 71 and forward left brake pedal 72 one-to-one are connected with a pair of brake pump 87, brake oilcan 88 and stopper 89 are connected with a pair of brake pump 87 respectively.

As shown in fig. 15, the two-way clutch device: the bi-directionally operated clutch device includes: the clutch comprises a forward clutch 90, a reverse clutch mechanism 91, a transmission mechanism 92 and a clutch fork 93 used for being connected with the clutch, wherein the forward clutch mechanism 90 and the reverse clutch mechanism 91 are connected with the clutch fork 93 through the transmission mechanism 92. The transmission mechanism 92 includes: the clutch comprises a first connecting fork 94, a second connecting fork 95, a clutch rocker shaft welding part 96 and a clutch rocker 97, wherein a first sliding groove 98 is formed in one end of the first connecting fork 94, the first connecting fork 94 is connected with a reverse clutch mechanism 91, one end of the clutch rocker 97 is slidably mounted in the first sliding groove 98, the other end of the clutch rocker 97 is connected with the clutch rocker shaft welding part 96, a second sliding groove 99 is formed in one end of the second connecting fork 95, the second connecting fork 95 is connected with a forward clutch mechanism 90, one end of the clutch rocker shaft welding part 96 is slidably mounted in the second sliding groove 99, and the other end of the clutch rocker shaft welding part 96 is connected with a clutch fork 93. The first sliding groove 98 and the second sliding groove 99 are closed through holes. The first and second slide grooves 98 and 99 are oval or rectangular in shape.

The reverse driving clutch manipulation 31 includes: reverse clutch pedal 100, first link 101, reverse clutch mechanism 91 includes: the first rocker arm seam piece 102, the second connecting rod 103, the second rocker arm seam piece 104, the third connecting rod 105 and the booster 106, the reverse clutch pedal 100, the first connecting rod 101, the first rocker arm seam piece 102, the second connecting rod 103, the second rocker arm seam piece 104, the third connecting rod 105 and the booster 106 are sequentially connected, and the booster 106 is connected with the first connecting fork 94. The reverse clutch mechanism 91 further includes: a first return spring 107, the first return spring 107 being connected to the first rocker arm seam 102. The forward driving clutch manipulation 23 includes: a forward clutch pedal 108, a fourth link 109, and the forward clutch mechanism 90 includes: the first rocker arm 110 and the second rocker arm 111 are connected in sequence to the forward clutch pedal 108, the fourth link 109, the first rocker arm 110, and the second rocker arm 111 is connected to the second yoke 95. The forward clutch mechanism 90 further includes: and a second return spring 112, wherein the second return spring 112 is connected with the forward clutch pedal 108. The forward clutch mechanism 90 is a mechanical power-assisted operating mechanism, and the reverse clutch mechanism 91 is a hydraulic power-assisted operating mechanism.

As shown in fig. 16 to 22, the three, two-way shuttle operating system: the two-way shuttle operating system comprises: the device comprises a forward shuttle type gear operating mechanism 113, a reverse shuttle type gear operating mechanism 114 and a first rocker arm 115, wherein the forward shuttle type gear operating mechanism 113 is arranged on the front side of a cab, the reverse shuttle type gear operating mechanism 114 is arranged on the rear side of the cab, the first rocker arm 115 is rotatably arranged on a chassis, and the forward shuttle type gear operating mechanism 113 and the reverse shuttle type gear operating mechanism 114 are connected with the first rocker arm 115. The forward drive shuttle shift maneuver 22 may include: the first operating lever 116, the first rotating shaft 117, and the first pull rod 118, and the forward shuttle operating mechanism 113 include: the first rotating shaft 117 and the second rotating shaft 120 are installed in the cab, the first operating lever 116 is rotatably installed on the first rotating shaft 117, the first operating lever 116 is connected with the first pull rod 118, the second rocker 119 is rotatably installed on the second rotating shaft 120, the second rocker 119 is connected with the first pull rod 118, the second rocker 119 is connected with the second pull rod 121, and the second pull rod 121 is connected with the first rocker 115. The free end of the first operating lever 116 is provided with a first handle ball 122, and the bottom of the first pull rod 118 is sleeved with a sealing seat 123. The second rocker arm 119 is of an "L" shaped configuration.

The reverse drive shuttle shift maneuver 34 may include: the second operating lever 124, the third rotating shaft 125, and the reverse shuttle operating mechanism 114 include: a cable member 126, a third rotating shaft 125 is installed in the cab, the second operating lever 124 is rotatably installed on the third rotating shaft 125, the third rotating shaft 125 is connected with the cable member 126, and the cable member 126 is connected with the first swing arm 115. The cable member 126 includes: the sliding cable 127 and the sealing sleeve 128 are sleeved on the outer side of the sliding cable 127, one end of the sliding cable 127 is connected with the second operating rod 124, the other end of the sliding cable 127 is connected with the first rocker arm 115, and two ends of the sealing sleeve 128 are respectively fixed in the cab. The gland 128 is mounted in the cab by a fixed plate 129 and the free end of the second lever 124 is mounted with a second handle ball 130. One end of the first rocker arm 115 is correspondingly provided with a connecting hole for connecting the forward shuttle operating mechanism 113 and the reverse shuttle operating mechanism 114. The forward shuttle operating mechanism 113 and the reverse shuttle operating mechanism 114 are symmetrically identical in structure.

As shown in fig. 23 to 25, a fourth, hydraulic steering system: a steering hydraulic system for bi-directional steering, comprising: the steering system comprises a steering oil cylinder 131, a forward steering gear 132 installed on the front side of a cab, a reverse steering gear 133 installed on the rear side of the cab, a hydraulic mechanism 134 and a switching mechanism 135 for switching the forward steering gear 132 and the reverse steering gear 133, wherein the steering oil cylinder 131 is respectively connected with the forward steering gear 132 and the reverse steering gear 133 through pipelines, and the switching mechanism 135 is respectively connected with the hydraulic mechanism 134, the forward steering gear 132 and the reverse steering gear 133 through pipelines. The switching mechanism 135 may be installed in a bidirectional cab, and the forward steering column 21 may be connected to the steering cylinder 131 and the switching mechanism 135, and the reverse steering column 33 may be connected to the steering cylinder 131 and the switching mechanism 135. The switching mechanism 135 is a two-position three-way ball valve 140, a first port of the two-position three-way ball valve 140 is connected to a first port of the forward steering gear 132 through a pipeline, a second port of the two-position three-way ball valve 140 is connected to a first port of the reverse steering gear 133 through a pipeline, and a third port of the two-position three-way ball valve 140 is connected to a hydraulic mechanism 134 through a pipeline. Wherein P in the figure represents a first port of a forward direction diverter or a first port of a reverse direction diverter; where T represents a second port of the forward diverter or a second port of the reverse diverter; wherein R represents a third port of the forward direction diverter or a third port of the reverse direction diverter; where L represents the fourth port of the forward diverter or the fourth port of the reverse diverter.

Second ports of the forward steering gear 132 and the reverse steering gear 133 are connected to a hydraulic mechanism 134 through pipes, third ports of the forward steering gear 132 and the reverse steering gear 133 are connected to a first port of the steering cylinder 131 through a pipe, and fourth ports of the forward steering gear 132 and the reverse steering gear 133 are connected to a second port of the steering cylinder 131 through a pipe. The hydraulic mechanism 134 includes: the power source 136, the hydraulic pump 137 and the hydraulic oil tank 138, the power source 136 is connected with the hydraulic pump 137, the hydraulic pump 137 is respectively connected with the third port of the two-position three-way ball valve 140 and the hydraulic oil tank 138 through pipelines, and the second ports of the forward steering gear 132 and the reverse steering gear 133 are connected with the hydraulic oil tank 138 through pipelines. The hydraulic pump 137 is connected with a hydraulic oil tank 138 through a suction filter 139. The switching mechanism 135 is a first two-position two-way ball valve 141 and a second two-position two-way ball valve 142, one end of the first two-position two-way ball valve 141 is connected with the first port of the forward steering gear 132 through a pipeline, one end of the second two-position two-way ball valve 142 is connected with the first port of the reverse steering gear 133 through a pipeline, and the other ends of the first two-position two-way ball valve 141 and the second two-position two-way ball valve 142 are respectively connected with the hydraulic mechanism 134 through a pipeline. Wherein P in the figure represents a first port of a forward direction diverter or a first port of a reverse direction diverter; where T represents a second port of the forward diverter or a second port of the reverse diverter; wherein R represents a third port of the forward direction diverter or a third port of the reverse direction diverter; where L represents the fourth port of the forward diverter or the fourth port of the reverse diverter.

The switching mechanism 135 is a shuttle valve 143 and a priority valve 144, a first port of the priority valve 144 is connected to a first port line of the forward steering gear 132 and the reverse steering gear 133, respectively, a second port of the priority valve 144 is connected to a hydraulic mechanism 134, and fifth ports of the forward steering gear 132 and the reverse steering gear 133 are connected to a third port line of the priority valve 144 through the shuttle valve 143. Wherein M in the figure represents a power source; where P represents the first port of the forward or reverse diverter or the second port of the priority valve; where T represents a second port of the forward diverter or a second port of the reverse diverter; wherein R represents a third port of the forward direction diverter or a third port of the reverse direction diverter; where L represents a fourth port of the forward direction diverter or a fourth port of the reverse direction diverter; LS in the figure represents the fifth port of the forward direction diverter, the fifth port of the reverse direction diverter or the third port of the priority valve; CF in the figure represents the first port of the priority valve. EF in the figure represents the fourth port of the priority valve.

The fourth port of the priority valve 144 is connected to the second port of the forward steering gear 132, the second ports of the forward steering gear 132 and the reverse steering gear 133 are connected to the hydraulic mechanism 134 through pipes, the third ports of the forward steering gear 132 and the reverse steering gear 133 are connected to the first port of the steering cylinder 131, and the fourth ports of the forward steering gear 132 and the reverse steering gear 133 are connected to the second port of the steering cylinder 131. The hydraulic mechanism 134 includes: the power source 136, the hydraulic pump 137 and the hydraulic oil tank 138, the power source 136 is connected with the hydraulic pump 137, the hydraulic pump 137 is respectively connected with the second port of the priority valve 144 and the hydraulic oil tank 138 through pipelines, and the second ports of the forward steering gear 132 and the reverse steering gear 133 are connected with the hydraulic oil tank 138 through pipelines.

As shown in fig. 26 to 37, the vehicle swivel seat: the vehicle swivel seat includes: a seat body 145, a vehicle body floor 146, and a rotation mechanism 147, the seat body 145 being mounted on the vehicle body floor 146 via the rotation mechanism 147. The two-way straight arrow in the figure represents the moving direction of the limiting rod, and the two-way circular arc arrow in the figure represents the rotating direction of the limiting rod.

The rotation mechanism 147 includes: the seat body 145 is provided with a rotating shaft seat 148 and a rotating shaft sleeve 149, the rotating shaft seat 148 is installed at the bottom end of the seat body 145, the rotating shaft sleeve 149 is installed on the vehicle body floor 146, and the rotating shaft seat 148 is rotatably installed in the rotating shaft sleeve 149. Be provided with reinforcing plate 150 and a plurality of baffle 151 on vehicle body floor 146, reinforcing plate 150 installs on vehicle body floor 146's bottom end face, is provided with the axle sleeve hole 152 that is used for installing rotatory axle sleeve 149 on reinforcing plate 150 and vehicle body floor 146, and rotatory axle sleeve 149 is installed in axle sleeve hole 152 and is just propped against with reinforcing plate 150, and the bottom at reinforcing plate 150 is installed to a plurality of baffles 151, and a plurality of baffles 151 encircle axle sleeve hole 152 and set up. The rotary shaft seat 148 includes: mounting base 153, last carousel 154, pivot 155 and strengthening rib 156, go up the carousel 154 and install the bottom at mounting base 153, strengthening rib 156 is installed on the top of mounting base 153, and strengthening rib 156, mounting base 153 and last carousel 154 are fixed to be established on pivot 155, go up carousel 154 and install at mounting base 153 bottom. The mounting seat 153 has a structure like a Chinese character ji, and the reinforcing rib 156 has a cross-shaped structure. The rotary sleeve 149 includes: a lower rotary table 157 and a sleeve 158, wherein the lower rotary table 157 is arranged at the top end of the sleeve 158, the sleeve 158 is arranged on the vehicle body floor 146, and the upper rotary table 154 is in rotary contact with the lower rotary table 157. Further comprising: and a limiting mechanism 159, wherein the limiting mechanism 159 is arranged on the rotating mechanism 147. The limit mechanism 159 includes: the limiting support 160 is mounted on the vehicle body floor 146, the rotating shaft seat 148 and the rotating shaft sleeve 149 are respectively provided with a limiting hole 162, one end of the limiting rod 161 is detachably inserted into the limiting hole 162, and the other end of the limiting rod 161 is detachably mounted on the limiting support 160. The limiting rod 161 is of an L-shaped structure, a V-shaped locking hole 163 is formed in the top of the limiting bracket 160, and the other end of the limiting rod 161 is detachably mounted in the V-shaped locking hole 163.

Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the utility model has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.

Claims (10)

1. A bi-directionally operated cab, comprising: two-way driver's cabin (2), forward driver's mechanism (3), reverse driver's mechanism (4) and seat (40), install forward driver's mechanism (3) the front side of two-way driver's cabin (2), install reverse driver's mechanism (4) the rear side of two-way driver's cabin (2), reverse driver's mechanism (4) with forward driver's mechanism (3) are connected, the rotatable setting of seat (40) is in two-way driver's cabin (2) middle part and is located between forward driver's mechanism (3) and the reverse driver's mechanism (4).

2. A bi-directionally operated cab as claimed in claim 1, wherein said bi-directional cab (2) further includes a steering wheel (41) and a hydraulic steering reversing valve (42) for switching between a forward steering column (21) and a reverse steering column (33), said steering wheel (41) being detachably mounted on said forward steering mechanism (3) or detachably mounted on said reverse steering mechanism (4), said hydraulic steering reversing valve (42) being mounted on a front side of said bi-directional cab (2), said forward steering column (21) in said forward steering mechanism (3) being connected to said reverse steering column (33) in said reverse steering mechanism (4) through said hydraulic steering reversing valve (42).

3. A bi-directionally operated cab as claimed in claim 1, wherein said forward steering mechanism (3) comprises: a forward driving direction machine column (21) comprising a steering gear, a forward driving shuttle type gear shifting operation (22), a forward driving clutch operation (23), a forward driving brake operation (24), a forward driving instrument desk (25), a forward driving electronic foot accelerator (26) and a forward driving speed change operation (27), wherein the forward driving direction machine column (21) is positioned in the middle of the front side of the bidirectional cab (2), the forward driving direction machine column (21) is connected with a steering oil cylinder (131), the forward driving shuttle type gear shifting operation (22) and the forward driving speed change operation (27) are positioned in the middle of the bidirectional cab (2) and are positioned on one side of a seat (40), the forward driving shuttle type gear shifting operation (22) is connected with a forward driving shuttle type gear operating mechanism (113), and the forward driving speed change operation (27) penetrates through the bidirectional cab (2) and is connected with a gearbox (10), forward driver's instrument platform (25) are located the front side middle part of two-way driver's cabin (2) and are located the below of forward driver's direction machine tubular column (21), forward driver's separation and reunion is controlled (23) forward driver's braking is controlled (24) and forward driver's electron foot throttle (26) are located the front side bottom of two-way driver's cabin (2) and are located the below of forward driver's instrument platform (25), forward driver's separation and reunion is controlled (23) and is connected with forward clutch mechanism (90), forward driver's braking is controlled (24) and is connected with forward brake mechanism (56), forward driver's electron foot throttle (26) are connected with engine (5).

4. A bi-directionally operated cab as claimed in claim 3, wherein said forward driver's instrument panel (25) is provided with a forward driver's instrument (28) and a forward driver's ignition lock (29), said forward driver's instrument (28) and said forward driver's ignition lock (29) being connected to the engine (5).

5. A bi-directionally operated cab as claimed in claim 1, wherein said reverse steering mechanism (4) comprises: a reverse driving brake operation (30), a reverse driving clutch operation (31), a reverse driving electronic foot accelerator (32), a reverse driving steering column (33) containing a steering gear, a reverse driving shuttle type gear shift operation (34) and a reverse driving instrument panel (35), wherein a reverse driving operation box (36) is arranged at the rear side of the bidirectional cab (2), the reverse driving brake operation (30), the reverse driving clutch operation (31), the reverse driving electronic foot accelerator (32) and the reverse driving steering column (33) are arranged on the reverse driving operation box (36), the reverse driving shuttle type gear shift operation (34) is arranged on the reverse driving steering column (33), the reverse driving instrument panel (35) is arranged at the rear side of the bidirectional cab (2), and the reverse driving steering column (33) is positioned at the middle part of the rear side of the bidirectional cab (2), the reverse driving instrument panel (35) is positioned below the reverse driving steering machine column (33), the reverse driving brake operation (30), the reverse driving clutch operation (31) and the reverse driving electronic foot accelerator (32) are positioned at the bottom of the rear side of the bidirectional cab (2) and are positioned below the reverse driving instrument panel (35), the reverse driving brake operation (30) is connected with a reverse brake mechanism (57), the reverse driving clutch operation (31) is connected with a reverse clutch mechanism (91), the reverse driving electronic foot accelerator (32) is connected with an engine (5), the reverse driving steering machine column (33) is connected with a steering oil cylinder (131), and the reverse driving shuttle type gear shifting operation (34) is connected with a reverse shuttle type gear operation mechanism (114).

6. A bidirectional operation cab as set forth in claim 5, wherein said reverse driving instrument panel (35) is provided with a forward and reverse driving foot throttle control switch (37), a reverse driving ignition lock (38) and a reverse driving instrument (39), said forward and reverse driving foot throttle control switch (37) is connected with the forward driving electronic foot throttle (26) and the reverse driving electronic foot throttle (32), and said reverse driving ignition lock (38) and said reverse driving instrument (39) are connected with the engine (5).

7. A bidirectional operating cab as claimed in claim 1, characterized in that the bidirectional cab (2) comprises: a cab front upper beam (43), a cab left door framework (44), a cab left mudguard tile (45), a cab front coaming (46), a cab front floor (47), a cab right door framework (48), a cab rear floor (49), a cab right mudguard tile (50), a cab rear windshield lower beam (51), a cab rear upper beam (52), the cab front coaming (46), the cab left door framework (44) and the cab right door framework (48) are vertically installed on the cab front floor (47), the cab front coaming (46) is positioned between the cab left door framework (44) and the cab right door framework (48), two ends of the cab front coaming (46) correspond to the cab left door framework (44) and the cab right door framework (48) and are connected, the cab front upper crossbeam (43) is horizontally arranged above the cab front wall plate (46), two ends of the cab front upper cross beam (43) are respectively connected with the cab left door framework (44) and the cab right door framework (48), the cab front floor (47) is connected with the cab rear floor (49), the cab front floor (47) is positioned at the front side of the cab rear floor (49), the rear floor (49) of the cab is connected with a reverse driving control box (36), the cab rear floor (49) is located on the front side of the reverse drive steering box (36), the cab left mudguard tile (45) and the cab right mudguard tile (50) are correspondingly arranged on two sides of the cab rear floor (49), the cab rear windshield lower cross beam (51) and the cab rear upper cross beam (52) are horizontally arranged above the reverse driving control box (36).

8. A tractor with two-way driving, characterized in that, it comprises a vehicle body (1) and a two-way operation cab as claimed in any one of claims 1 to 7, the two-way cab (2) is mounted on the vehicle body (1), the forward driving mechanism (3) and the reverse driving mechanism (4) are respectively connected with the transmission system of the vehicle body and control the vehicle body (1) to move forward or reverse.

9. A tractor capable of steering in both directions according to claim 8, characterised in that the transmission system of the vehicle body (1) comprises: an engine (5), a bracket (6), a front axle (7), a lifter (8), a power output shaft (9), a gearbox (10) and a rear axle (11), wherein the two-way cab (2), the engine (5) and the gearbox (10) are installed on the bracket (6), the front axle (7) is installed below the bracket (6) and is connected with a steering oil cylinder (131) and the gearbox (10), the two-way cab (2) is located behind the engine (5), the gearbox (10) is located at the bottom of the two-way cab (2) and is connected with the engine (5), the rear axle (11) is installed at two ends of the gearbox (10) and is connected with the gearbox (10), the lifter (8) is installed at the top of the rear side of the gearbox (10) and is connected with the gearbox (10), the power output shaft (9) is installed at the rear end of the gearbox (10) and connected with the gearbox (10).

10. The tractor with the bidirectional driving function according to claim 9, wherein the free end of the lifter (8) is hinged to one end of a suspension system (12), the other end of the suspension system (12) is hinged to the rear axle (11), rear wheels (13) are correspondingly mounted at two ends of the rear axle (11), the rear wheels (13) are connected to the gearbox (10), front wheels (14) are correspondingly mounted at two ends of the front axle (7), the front wheels (14) are connected to a steering cylinder (131), a mudguard (15) is mounted at a position of the bottom of the bidirectional cab (2) corresponding to the rear wheels, a cab top cover (16) is mounted at the top end of the bidirectional cab (2), the front axle (7) is connected to the gearbox (10) through a four-wheel drive transmission shaft (17), a muffler (18) and an air filter (19) are connected to the rear end of the engine (5), a hood (20) is mounted above the engine (5).

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