CN110637542A - Pull steering type liftable heavy-load chassis for bundling and film-coating integrated machine - Google Patents
Pull steering type liftable heavy-load chassis for bundling and film-coating integrated machine Download PDFInfo
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- CN110637542A CN110637542A CN201910814363.1A CN201910814363A CN110637542A CN 110637542 A CN110637542 A CN 110637542A CN 201910814363 A CN201910814363 A CN 201910814363A CN 110637542 A CN110637542 A CN 110637542A
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B51/00—Undercarriages specially adapted for mounting-on various kinds of agricultural tools or apparatus
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F15/00—Baling presses for straw, hay or the like
- A01F15/04—Plunger presses
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F15/00—Baling presses for straw, hay or the like
- A01F15/07—Rotobalers, i.e. machines for forming cylindrical bales by winding and pressing
- A01F15/071—Wrapping devices
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Vehicle Body Suspensions (AREA)
Abstract
The invention provides a traction steering type liftable heavy-load chassis for a bundling and film-coating integrated machine, which belongs to the field of agriculture and animal husbandry machinery and comprises a traction head, a left steering axle hydraulic suspension, a right steering axle hydraulic suspension, 2 groups of left bearing axle hydraulic suspensions, 2 groups of right bearing axle hydraulic suspensions, an electric control unit, a power transmission system, a wheel braking system, a front frame, a rear frame and a wheel group. The left steering axle hydraulic suspension and the right steering axle hydraulic suspension are longitudinally and symmetrically arranged along the central plane of the front frame, and the left bearing axle hydraulic suspension and the right bearing axle hydraulic suspension are longitudinally and symmetrically arranged along the central plane of the rear frame; the traction steering type liftable heavy-load chassis for the bundling and film-coating integrated machine can realize the rapid transition of the bundling and film-coating integrated machine, and has the characteristics of adapting to the fluctuation of a road surface, reducing the abrasion of tires and the like.
Description
Technical Field
The invention relates to the field of agriculture and animal husbandry machinery, in particular to a traction steering type liftable heavy-load chassis for a bundling and film-coating integrated machine.
Background
With the development of society, more and more advanced mechanical equipment is applied to agricultural production, and a bundling and film-coating all-in-one machine is one of the advanced mechanical equipment. The bundling and film-coating integrated machine is used for performing high-density compaction and bundling on the crushed silage raw materials through a bundling part of the integrated machine, and then the crushed silage raw materials are wrapped by a stretching film through a film-coating part, so that an anaerobic fermentation environment is created, and the lactic acid fermentation process is finally completed. This ensiling method has been widely accepted and used in countries developed in the world such as europe, the usa and japan, and is widely used in the field of agriculture and animal husbandry. However, the chassis of the existing bundling and film-coating integrated machine has lower ground clearance and large self weight, is not suitable for running on the road surface in the field, and has serious tire abrasion when a tractor pulls and transports. Therefore, the existing machine is used in a field in consideration of the factors and does not have the function of transition.
Disclosure of Invention
Aiming at the fact that the existing bundling and film-coating integrated machine does not have a transition function, the invention provides a traction steering type liftable heavy-load chassis for the bundling and film-coating integrated machine, which can finish the lifting of a vehicle body and adapt to the fluctuation of the ground; the tractor can automatically steer and can realize linkage of a traction device and a steering mechanism, so that the tractor can enable the steering deflection angle of the left front wheel and the right front wheel to approximately meet the pure rolling steering geometric relation when the tractor pulls the bundling and enveloping all-in-one machine to switch, and the abrasion of tires of the bundling and enveloping all-in-one machine is reduced. The technical problem that the existing bundling and film-wrapping integrated machine chassis does not have a transition function is solved.
In order to achieve the purpose of the invention, the technical scheme of the invention is as follows:
a traction steering type liftable heavy-load chassis for a bundling and film-coating integrated machine comprises a traction head, a left steering axle hydraulic suspension II, a right steering axle hydraulic suspension IV, two groups of left bearing axle hydraulic suspensions VII, two groups of right bearing axle hydraulic suspensions VIII, an electric control unit I, a power transmission system III, a wheel braking system V, a front frame, a rear frame and a wheel group VI;
the left steering axle hydraulic suspension II and the right steering axle hydraulic suspension IV are longitudinally and symmetrically arranged along the central plane of the front frame 6, and the left bearing axle hydraulic suspension VII and the right bearing axle hydraulic suspension VIII are longitudinally and symmetrically arranged along the central plane of the rear frame 5; a first left cantilever of a left steering axle hydraulic suspension II and a right cantilever of a right steering axle hydraulic suspension VIII are respectively fixedly connected with the front frame, a right-angle swing arm of the left steering axle hydraulic suspension II is hinged with a left front wheel, and a right-angle swing arm of the right steering axle hydraulic suspension IV is hinged with a right front wheel; a cantilever of a left bearing bridge hydraulic suspension VII and a cantilever of a right bearing bridge hydraulic suspension VIII are respectively fixedly connected with the rear frame, a right-angle swing arm of the left bearing bridge hydraulic suspension VII is hinged with a left rear wheel, and a right-angle swing arm of the right bearing bridge hydraulic suspension VIII is hinged with a right rear wheel;
the parallel shaft gear box of the power transmission system III drives a gear pump to rotate, the gear pump sucks oil from a hydraulic oil tank, and high-pressure oil is supplied to the oil cylinder through a hydraulic oil way;
an angle sensor A on the front frame detects the rotation angle of a longitudinal hinge shaft of the traction head and the front frame, and senses the steering deflection angle between the tractor and the bundling and film-coating integrated machine; and the piston rod end of the steering oil cylinder hinged on the left steering axle hydraulic suspension II drives a left steering knuckle hinged on the left front wheel to swing, and the piston rod end of the steering oil cylinder hinged on the right steering axle hydraulic suspension IV drives a right steering knuckle hinged on the right front wheel to swing. An angle sensor B fixedly connected on the left steering axle right-angle swing arm detects the angle between the left steering knuckle and the left steering axle right-angle swing arm, and an angle sensor C fixedly connected on the right steering axle right-angle swing arm detects the angle between the right steering knuckle and the right steering axle right-angle swing arm; the electronic control unit I samples angle values of the angle sensor A, the angle sensor B and the angle sensor C in real time, controls a coil of the electromagnetic directional valve to act to enable the steering oil cylinder to stretch and retract, and enables a steering deflection angle of the left front wheel and the right front wheel to meet a pure rolling steering geometric relation;
suspension oil cylinders are hinged between cantilevers and right-angle swing arms of the left steering axle hydraulic suspension II, the right steering axle hydraulic suspension IV, the two groups of left bearing axle hydraulic suspensions VII and the two groups of right bearing axle hydraulic suspensions VIII, the positions of piston rods of the suspension oil cylinders are set through manual switch valves of operation oil ways, and the energy accumulator stores or releases oil to enable the suspension oil cylinders to stretch and retract respectively during vibration reduction, so that wheels are adaptive to ground fluctuation.
Furthermore, the power transmission system III comprises a parallel shaft gear box, a T-shaped transfer case, a first transmission shaft, a second transmission shaft, a third transmission shaft, a gear pump and a universal transmission shaft; the parallel shaft gearbox is installed at the front end of the front frame, the gear pump is fixedly connected with an output shaft in the middle of the parallel shaft gearbox, the universal transmission shaft is coaxially and fixedly connected with an input shaft at the upper part of the parallel shaft gearbox, the first transmission shaft is installed below the front frame through a bearing seat, two ends of the first transmission shaft are respectively connected with an output shaft at the lower part of the parallel shaft gearbox and an input shaft at the front part of the T-shaped transfer case installed below the rear frame through a coupler, an output shaft at the left side of the T-shaped transfer case is connected with the second transmission shaft through a coupler, an output shaft at the right side of the T-shaped transfer case is connected with the third transmission shaft through a coupler, and the; the gear pump provides high-pressure oil for the oil cylinders of the hydraulic suspension of the steering axle and the hydraulic suspension of the bearing axle through pipelines.
Furthermore, the T-shaped transfer case comprises a longitudinal shaft and a transverse shaft, the longitudinal shaft and the transverse shaft are in transmission through bevel gears, and transverse and longitudinal power input of the transfer case can be transmitted when the transfer case is used for fixed field operation.
Furthermore, the two ends of the longitudinal steering pin shaft are respectively hinged with the front frame and the traction head, the traction head is fixedly connected with the vertical steering pin shaft, and an output shaft of the angle sensor A fixedly connected to the front frame is coaxially and fixedly connected with the vertical steering pin shaft and used for detecting the steering deflection angle of the traction head.
Further, the left bearing bridge hydraulic suspension VII comprises a second left cantilever, a left bearing bridge right-angle swing arm and a second suspension oil cylinder; the second left cantilever is welded below the rear rack; one end of the right-angle swing arm of the left bearing bridge is hinged with the second left cantilever, and the other end of the right-angle swing arm of the left bearing bridge is hinged with the left rear wheel; the piston rod end of the second suspension oil cylinder is hinged with the right-angle swing arm of the left bearing bridge, and the end part of the cylinder body of the second suspension oil cylinder is hinged with the second left cantilever; the second left cantilever and the right cantilever are connected through a long round pipe.
Further, the left steering axle hydraulic suspension II comprises a first left cantilever, a left steering axle right-angle swing arm, a suspension oil cylinder, a steering oil cylinder and a left steering knuckle; the first left cantilever is welded below the front rack and is connected with the front rack through a short circular tube; the right-angle swing arm of the left steering axle is hinged with a steering oil cylinder, the piston rod end of the steering oil cylinder is hinged with a left steering knuckle, and the left steering knuckle is hinged with a left front wheel; the piston rod end of the suspension oil cylinder is hinged with the left steering axle right-angle swing arm, the cylinder body of the suspension oil cylinder is hinged with the first left cantilever, and the left steering axle right-angle swing arm is hinged with the first left cantilever.
Compared with the prior art, the invention has the beneficial effects that:
1. the frame comprises a frame structure formed by welding rectangular pipes with higher strength, the front frame and the rear frame are enhanced in bearing capacity, and all parts of the frame are detachably connected.
2. The wheel set provided by the invention adopts wide-base tires with smaller diameters, so that the bearing capacity of the bundling and film-coating all-in-one machine is improved, the gravity center of the chassis of the bundling and film-coating all-in-one machine is reduced, the stability of the chassis of the bundling and film-coating all-in-one machine is improved, and the specific grounding pressure of the tires is reduced.
3. By applying the independent hydraulic suspension, the adaptability of the bundling and film-coating all-in-one machine to the field pavement is improved, the vibration of the bundling and film-coating all-in-one machine during field transportation is reduced, and the service life of parts is prolonged.
4. The traction device and the steering mechanism are linked through the angle sensor, so that pure rolling steering is approximately met when the bundling and film-coating all-in-one machine is transported in a field, and the abrasion of tires of the bundling and film-coating all-in-one machine is reduced.
Drawings
FIG. 1 is a schematic diagram of the general structure of a traction steering type liftable heavy-load chassis for a bundling and film-coating all-in-one machine of the invention;
FIG. 2 is a schematic diagram of the transmission of a traction steering type liftable heavy-load chassis for a bundling and film-coating all-in-one machine of the invention;
FIG. 3 is a schematic structural view of a traction steering type liftable heavy-load chassis front frame for a bundling and film-coating all-in-one machine of the invention;
FIG. 4 is a schematic structural diagram of a load-bearing bridge hydraulic suspension of a traction steering type liftable heavy-load chassis for a bundling and film-coating all-in-one machine of the invention;
FIG. 5 is a schematic structural view of a steering axle hydraulic suspension of a traction steering type liftable heavy-load chassis for a bundling and film-coating all-in-one machine of the invention;
FIG. 6 is a schematic mechanism diagram of a T-shaped transfer case of a traction steering type liftable heavy-load chassis for a bundling and film-coating all-in-one machine of the invention;
FIG. 7 is a hydraulic oil circuit diagram of a traction steering type liftable heavy-load chassis for a bundling and film-coating all-in-one machine.
The reference numbers are as follows:
1. a traction head; 2. a vertical steering pin shaft; 3. a longitudinal steering pin shaft; 4. an angle sensor A; 5. a rear frame; 6. a front frame; 7. a short circular tube; 8. a first left cantilever; 9. a right-angle swing arm of a left steering axle; 10. a suspension cylinder; 11. a steering cylinder; 12. a left knuckle; 13. a left front wheel; 14. a right cantilever; 15. a right steering axle right-angle swing arm; 16. a right knuckle; 17. a right front wheel; 18. a hydraulic oil tank; 19. a parallel axis gearbox; 20. a first drive shaft; 21. a second drive shaft; 22. a third drive shaft; a T-type transfer case; 24. a universal drive shaft; 25. a gear pump; 26. a right-angle swing arm of the left bearing bridge; 27. a left rear wheel; 28. a right bearing bridge right-angle swing arm; 29. a right rear wheel; 30. a long circular tube; 31. an angle sensor B; 32. and an angle sensor C.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "axial," "radial," "vertical," "horizontal," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1, a traction steering type liftable heavy-load chassis for a bundling and film-coating all-in-one machine mainly comprises a traction head 1, a left steering axle hydraulic suspension II, a right steering axle hydraulic suspension IV, 2 groups of left bearing axle hydraulic suspensions VII, 2 groups of right bearing axle hydraulic suspensions VIII, an electric control unit I, a power transmission system III, a wheel braking system V, a front frame 6, a rear frame 7 and a wheel group VI.
The left steering axle hydraulic suspension II and the right steering axle hydraulic suspension IV are longitudinally and symmetrically arranged along the central plane of the front frame 6, and the left bearing axle hydraulic suspension VII and the right bearing axle hydraulic suspension VIII are longitudinally and symmetrically arranged along the central plane of the rear frame 7;
as shown in fig. 1 and 3, the front frames 6 and the rear frame 5 are connected together by bolts, so that the manufacturing and the transportation are convenient; the hydraulic oil tank 10 is detachably mounted below the rear frame 5. The two ends of the longitudinal steering pin shaft 3 are respectively hinged with the front frame 6 and the traction head 1, the traction head 1 is fixedly connected with the vertical steering pin shaft 2, and the output shaft of the angle sensor A4 fixedly connected on the front frame 6 is coaxially and fixedly connected with the vertical steering pin shaft 2 and is used for detecting the steering deflection angle of the traction head 1.
As shown in fig. 2, the power transmission system iii includes a parallel shaft gear box 19, a T-shaped transfer case 23, a first transmission shaft 20, a second transmission shaft 21, a third transmission shaft 22, a gear pump 25 and a universal transmission shaft 24; the parallel shaft gear box 19 is installed at the front end of the front frame 6 through bolts, the gear pump 25 is fixedly connected with an output shaft in the middle of the parallel shaft gear box 19, and the universal transmission shaft 24 is coaxially and fixedly connected with an input shaft on the upper part of the parallel shaft gear box 19; the first transmission shaft 20 is arranged below the front frame 6 through two bearing seats, two ends of the first transmission shaft 20 are respectively connected with an output shaft at the lower part of the parallel shaft gear box 19 and an input shaft at the front part of the T-shaped transfer case 23 arranged below the rear frame through a coupler, an output shaft at the left side of the T-shaped transfer case 23 is connected with the second transmission shaft 21 through a coupler, an output shaft at the right side of the T-shaped transfer case 23 is connected with the third transmission shaft 22 through a coupler, and the second transmission shaft 21 and the third transmission shaft 23 are arranged below the rear frame 5 through the bearing seats; during fixed operation, the universal transmission shaft 24 is driven by the tractor PTO or the motor to rotate to drive the T-shaped transfer case 23 to work, the motor can also drive the third transmission shaft 22 to drive the T-shaped transfer case 23 to work by the universal transmission shaft 24, and the T-shaped transfer case 23 transmits power to a working part arranged on the upper part of the chassis by chain transmission, so that bundling and film coating operations are completed. When the tractor PTO is transported in a field, the tractor PTO drives the parallel shaft gear box 19 to drive the gear pump 25 through the universal transmission shaft 23, and the gear pump 25 provides high-pressure oil for the steering oil cylinder 11 and the suspension oil cylinder 10 through hydraulic pipelines.
As shown in fig. 3, the left steering axle hydraulic suspension ii includes a second left suspension arm, a left steering axle right-angle swing arm 9, a suspension cylinder 10, a steering cylinder 11, and a left knuckle 12. The second left cantilever is welded below the front frame 6 and is connected with the front frame 6 through a short round pipe 7; the left steering axle right-angle swing arm 9 is hinged with a steering oil cylinder 11, the piston rod end of the steering oil cylinder 11 is hinged with a left steering knuckle 12, and the left steering knuckle 12 is hinged with a left front wheel 13; the piston rod end of a suspension oil cylinder 10 is hinged with a left steering axle right-angle swing arm 9 through a pin shaft, the cylinder body of the suspension oil cylinder 10 is hinged with a second left cantilever through a pin shaft, and the left steering axle right-angle swing arm 9 is hinged with the second left cantilever through a pin shaft. And the left steering axle hydraulic suspension II and the right steering axle hydraulic suspension IV are structurally symmetrical. When the tractor pulls the bundling and film-coating integrated machine to turn, an angle sensor A4 fixedly connected on the front frame 6 detects the turning angle of the traction head 1 and the vertical steering pin shaft 2 of the front frame 6, and senses the steering deflection angle between the tractor and the bundling and film-coating integrated machine. The piston rod end of a steering oil cylinder 11 hinged on the left steering axle hydraulic suspension II drives a left steering knuckle 12 hinged on a left front wheel 13 to swing, and the piston rod end of the steering oil cylinder 11 hinged on the right steering axle hydraulic suspension IV drives a right steering knuckle 16 hinged on a right front wheel 17 to swing. An angle sensor B31 fixed on the left steering axle right-angle swing arm detects the angle between the left steering knuckle 12 and the left steering axle right-angle swing arm 9, and an angle sensor C32 fixed on the right steering axle right-angle swing arm 15 detects the angle between the right steering knuckle 16 and the right steering axle right-angle swing arm 15. The electric control unit I samples the angle values of the angle sensor A4, the angle sensor B31 and the angle sensor C32 in real time, controls the coil action of the electromagnetic directional valve to enable the steering oil cylinder 11 to stretch and contract, and enables the steering deflection angle of the left front wheel 13 and the right front wheel 17 to approximately meet the pure rolling steering geometrical relation.
As shown in fig. 4, the left load-bearing bridge hydraulic suspension VII comprises a first left suspension arm 8, a left load-bearing bridge right-angle swing arm 26, and a suspension cylinder 10; the first left cantilever 8 is welded below the rear frame 5; one end of a right-angle swing arm 26 of the left bearing bridge is hinged with the first left cantilever 8 through a pin shaft, and the other end is hinged with a left rear wheel 27; the piston rod end of the suspension oil cylinder 10 is hinged with the left bearing bridge right-angle swing arm 26 through a pin shaft, and the end part of the cylinder body of the suspension oil cylinder 10 is hinged with the left cantilever 8 through a pin shaft; the first left cantilever 8 and the right cantilever 14 are connected through a long circular tube 30; the right bearing bridge hydraulic suspension VIII and the left bearing bridge hydraulic suspension VII are structurally symmetrical. The positions of piston rods of suspension oil cylinders 10 which are hinged between cantilevers and right-angle swing arms of a left steering axle hydraulic suspension II, a right steering axle hydraulic suspension IV, 2 groups of left bearing axle hydraulic suspensions VII and 2 groups of right bearing axle hydraulic suspensions VIII are set through a manual switch valve of an operation oil way, and an energy accumulator stores or releases oil liquid to enable the suspension oil cylinders 10 to respectively stretch and retract during vibration reduction, so that wheels adapt to ground fluctuation.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made in the above embodiments by those of ordinary skill in the art without departing from the principle and spirit of the present invention.
Claims (6)
1. A traction steering type liftable heavy-load chassis for a bundling and film-coating all-in-one machine is characterized by comprising a traction head (1), a left steering axle hydraulic suspension II, a right steering axle hydraulic suspension IV, two groups of left bearing axle hydraulic suspensions VII, two groups of right bearing axle hydraulic suspensions VIII, an electric control unit I, a power transmission system III, a wheel braking system V, a front frame (6), a rear frame (5) and a wheel group VI;
the left steering axle hydraulic suspension II and the right steering axle hydraulic suspension IV are longitudinally and symmetrically arranged along the central plane of the front frame (6), and the left bearing axle hydraulic suspension VII and the right bearing axle hydraulic suspension VIII are longitudinally and symmetrically arranged along the central plane of the rear frame (5); a first left cantilever (8) of a left steering axle hydraulic suspension II and a right cantilever of a right steering axle hydraulic suspension VIII are respectively fixedly connected with a front frame (6), a right-angle swing arm of the left steering axle hydraulic suspension II is hinged with a left front wheel (13), and a right-angle swing arm of the right steering axle hydraulic suspension IV is hinged with a right front wheel (17); a cantilever of a left bearing bridge hydraulic suspension VII and a cantilever of a right bearing bridge hydraulic suspension VIII are respectively fixedly connected with the rear frame (5), a right-angle swing arm of the left bearing bridge hydraulic suspension VII is hinged with a left rear wheel (27), and a right-angle swing arm of the right bearing bridge hydraulic suspension VIII is hinged with a right rear wheel (29);
a parallel shaft gear box (19) of the power transmission system III drives a gear pump (25) to rotate, the gear pump (25) sucks oil from a hydraulic oil tank (18), and high-pressure oil is provided for the oil cylinder through a hydraulic oil way;
an angle sensor A (4) on the front frame (6) detects the rotation angle of a longitudinal hinge shaft of the traction head (1) and the front frame (6) and senses the steering deflection angle between the tractor and the bundling and film-coating integrated machine; the piston rod end of a steering oil cylinder (11) hinged on a left steering axle hydraulic suspension II drives a left steering knuckle (12) hinged on a left front wheel (13) to swing, and the piston rod end of the steering oil cylinder (11) hinged on a right steering axle hydraulic suspension (IV) drives a right steering knuckle (16) hinged on a right front wheel (17) to swing; an angle sensor B (31) fixedly connected on the left steering axle right-angle swing arm (9) detects the angle between the left steering knuckle (12) and the left steering axle right-angle swing arm (9), and an angle sensor C (32) fixedly connected on the right steering axle right-angle swing arm (15) detects the angle between the right steering knuckle (16) and the right steering axle right-angle swing arm (15); the electronic control unit I samples angle values of an angle sensor A (4), an angle sensor B (31) and an angle sensor C (32) in real time, controls a coil of an electromagnetic directional valve to act to enable a steering oil cylinder (11) to stretch and retract, and enables a steering deflection angle of a left front wheel (13) and a right front wheel (17) to meet a pure rolling steering geometrical relation;
suspension oil cylinders (10) are hinged between cantilevers and right-angle swing arms of a left steering axle hydraulic suspension II, a right steering axle hydraulic suspension IV, a two groups of left bearing axle hydraulic suspensions VII and a two groups of right bearing axle hydraulic suspensions VIII, the positions of piston rods of the suspension oil cylinders (10) are set through manual switch valves of operation oil ways, and an energy accumulator stores or releases oil to enable the suspension oil cylinders (10) to stretch out and draw back respectively during vibration reduction, so that wheels adapt to ground fluctuation.
2. The traction steering type liftable heavy-load chassis for the bundling and enveloping all-in-one machine according to claim 1, characterized in that: the power transmission system III comprises a parallel shaft gear box (19), a T-shaped transfer case (23), a first transmission shaft (20), a second transmission shaft (21), a third transmission shaft (22), a gear pump (25) and a universal transmission shaft (24); the parallel shaft gearbox (19) is installed at the front end of the front rack (6), the gear pump (25) is fixedly connected with an output shaft in the middle of the parallel shaft gearbox (19), the universal transmission shaft (24) is coaxially and fixedly connected with an input shaft on the upper portion of the parallel shaft gearbox (19), the first transmission shaft (20) is installed below the front rack (6) through a bearing seat, two ends of the first transmission shaft (20) are respectively connected with an output shaft on the lower portion of the parallel shaft gearbox (19) and an input shaft on the front portion of the T-shaped transfer case (23) installed below the rear rack (5) through a coupler, an output shaft on the left side face of the T-shaped transfer case (23) is connected with the second transmission shaft (21) through a coupler, an output shaft on the right side face of the T-shaped transfer case (23) is connected with the third transmission shaft (22) through a coupler, and the second transmission shaft (21) and the; and the gear pump (25) provides high-pressure oil for oil cylinders of the hydraulic suspension of the steering axle and the hydraulic suspension of the bearing axle through pipelines.
3. The traction steering type liftable heavy-duty chassis for the bundling and film-coating all-in-one machine according to claim 2, wherein the T-shaped transfer case (23) comprises a longitudinal shaft and a transverse shaft, and the longitudinal shaft and the transverse shaft are in bevel gear transmission, so that the transverse and longitudinal power input of the machine can be transmitted during fixed-site operation.
4. The traction steering type liftable heavy-load chassis for the bundling and enveloping all-in-one machine according to claim 1, wherein two ends of the longitudinal steering pin shaft (3) are respectively hinged with a front frame (6) and a traction head (1), the traction head (1) is fixedly connected with a vertical steering pin shaft (2), and an output shaft of an angle sensor A (4) fixedly connected to the front frame (6) is coaxially and fixedly connected with the vertical steering pin shaft (2) for detecting a steering deflection angle of the traction head (1).
5. The traction steering type liftable heavy-duty chassis for the bundling and film-coating all-in-one machine according to claim 1, wherein the left bearing bridge hydraulic suspension VII comprises a second left cantilever, a left bearing bridge right-angle swing arm (26) and a second suspension oil cylinder; the second left cantilever is welded below the rear frame (5); one end of a right-angle swing arm (26) of the left bearing bridge is hinged with the second left cantilever, and the other end of the right-angle swing arm is hinged with a left rear wheel (27); the piston rod end of the second suspension oil cylinder is hinged with a right-angle swing arm (26) of the left bearing bridge, and the end part of the cylinder body of the second suspension oil cylinder is hinged with a second left cantilever; the second left cantilever and the right cantilever (14) are connected through a long circular tube (30).
6. The traction steering type liftable heavy-duty chassis for the bundling and film-wrapping all-in-one machine according to claim 1, wherein the left steering axle hydraulic suspension II comprises a first left cantilever (8), a left steering axle right-angle swing arm (9), a suspension cylinder (10), a steering cylinder (11) and a left steering knuckle (12); the first left cantilever (8) is welded below the front rack (6) and is connected with the front rack (6) through a short circular tube (7); the left steering axle right-angle swing arm (9) is hinged with a steering oil cylinder (11), the piston rod end of the steering oil cylinder (11) is hinged with a left steering knuckle (12), and the left steering knuckle (12) is hinged with a left front wheel (13); the piston rod end of a suspension oil cylinder (10) is hinged with a left steering axle right-angle swing arm (9), the cylinder body of the suspension oil cylinder (10) is hinged with a first left cantilever (8), and the left steering axle right-angle swing arm (9) is hinged with the first left cantilever (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910814363.1A CN110637542A (en) | 2019-08-30 | 2019-08-30 | Pull steering type liftable heavy-load chassis for bundling and film-coating integrated machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910814363.1A CN110637542A (en) | 2019-08-30 | 2019-08-30 | Pull steering type liftable heavy-load chassis for bundling and film-coating integrated machine |
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| CN202089109U (en) * | 2011-06-16 | 2011-12-28 | 迟树廷 | Steering system of three-bridge trailer |
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Application publication date: 20200103 |