Profiling chassis of boom sprayer

Abstract

The invention discloses a boom sprayer profiling chassis which comprises a bottom main frame and auxiliary frames on the two sides of the top, damping oil cylinders are arranged at the tops of the four corners of the main frame, the upper ends of the damping oil cylinders are connected with the auxiliary frames, the damping oil cylinders are connected with energy accumulators, walking supporting arms are arranged at the four corners of the bottom of the main frame, and each walking supporting arm comprises a top adjusting structure and a bottom walking supporting structure. Compared with the prior art, the shock absorption oil cylinder used for connecting the main frame and the auxiliary frame is connected with the energy accumulator, so that the situation that the whole machine is unstable on a bumpy road surface in actual operation can be greatly reduced, the operation feeling of operators is improved, and the whole machine is firm in connection and low in failure rate; the chassis heightening system has a limiting function, the height of the chassis can be increased according to the actual working condition, the width of the chassis can be automatically adjusted according to the actual operation condition, the limitation of actual operation work is solved, a machine tool can play a maximum role, and the use cost is saved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of agricultural machinery, in particular to a profiled chassis of a spray boom sprayer. BACKGROUND

[0002] There are more than 100 kinds of diseases, pests and weeds that occur frequently every year. At the current level of science and technology, pesticides are still the most effective weapon for preventing and controlling diseases and pests, especially for preventing and controlling explosive diseases and pests, which cannot be replaced by other technologies. The growth of crops cannot be separated from the prevention and control of drugs. Plant protection is still an important part of agricultural and forestry production. It is one of the important measures to ensure the high yield and high harvest of agriculture and forestry. At present, there are various types of agricultural plant protection spray boom sprayers on the market, but most of the plant protection machinery itself is limited by the structure and cannot well adapt to the different conditions of the ground by the profiled function of the chassis, which leads to poor driving experience of the driver, and the complex ground conditions during driving may also cause one or more tires to be suspended, the power of the whole machine cannot be output efficiently, and the power loss occurs.

[0003] Without a damping system, some models on the market have a simple spring type or air bag type linkage damping, and do not have an energy storage oil cylinder type damping, so the damping system effect of the large spray machine on the market is mostly poor, which leads to poor driving experience of the driver, and the machine is prone to failure due to poor damping effect and poor spraying effect.

[0004] Chassis heightening system, most of the chassis heightening systems of large self-propelled plant protection machinery on the market are composed of single oil cylinder or multiple oil cylinder linkage, but most of the chassis heightening systems of self-propelled plant protection machinery do not have a limiting function, which will lead to poor effect of the chassis heightening system after a long time of work, and long-term use will cause damage to the machine, which seriously affects the plant protection operation.

[0005] Wheel track widening system, in addition, most of the chassis of self-propelled spray boom sprayers on the market do not have a wheel track widening system, which causes certain limitations to the actual operation. Because of different regional planting, the spray boom sprayer needs to automatically complete the chassis widening, so as to maximize the use of the machine and save the use cost.

[0006] Therefore, a structure capable of providing good guidance and protection for the support shaft is needed to ensure the stability and safety of the axial movement of the support shaft. SUMMARY

[0007] The technical problem to be solved by the present application is to provide a profiled chassis of a spray boom sprayer in view of the deficiencies in the above background technology.

[0008] To solve the above technical problems, the technical scheme provided by the present application is as follows: a profiled chassis of a spray boom sprayer, which comprises a bottom main frame and a top two-side auxiliary frame, a auxiliary frame cross beam and a auxiliary frame girder are welded in the middle of the two-side auxiliary frame, a connecting arm is welded at the bottom of the auxiliary frame, a connecting lug is hingedly arranged on the connecting arm, and the connecting lug is provided with a connecting bearing together with the main frame;

[0009] A shock-absorbing oil cylinder is arranged at the top of the four corners of the main frame, the upper end of the shock-absorbing oil cylinder is connected with the auxiliary frame, and an energy accumulator is connected with the shock-absorbing oil cylinder.

[0010] A walking arm is arranged at the bottom of the four corners of the main frame, the walking arm comprises a top adjusting structure and a bottom walking support structure, the adjusting structure comprises a lifting oil cylinder, an extension slide rail and an energy storage slide rail, the extension slide rail and the energy storage slide rail are arranged on both sides of the lifting oil cylinder, and the lifting oil cylinder, the extension slide rail and the energy storage slide rail can drive the walking support structure to be adjusted in lifting.

[0011] Further, a first widening oil cylinder and a second widening oil cylinder are arranged on both sides of the main frame, a telescopic shaft is arranged through the main frame, a telescopic sleeve is arranged outside the main frame and sleeved with the telescopic shaft, the power end of the first widening oil cylinder and the second widening oil cylinder is connected with the telescopic sleeve, and the outside of the telescopic sleeve is connected with the connecting lug.

[0012] Further, the shock-absorbing oil cylinder comprises a first shock-absorbing oil cylinder, a second shock-absorbing oil cylinder, a third shock-absorbing oil cylinder and a fourth shock-absorbing oil cylinder, and the energy accumulator comprises a first energy accumulator, a second energy accumulator, a third energy accumulator and a fourth energy accumulator corresponding to the first shock-absorbing oil cylinder, the second shock-absorbing oil cylinder, the third shock-absorbing oil cylinder and the fourth shock-absorbing oil cylinder.

[0013] Further, a steering oil cylinder is arranged to be hingedly connected between the main frame and the walking arm, and the walking arm is rotationally connected with the main frame.

[0014] Further, the walking arm comprises a first walking arm, a second walking arm, a third walking arm and a fourth walking arm, and the steering oil cylinder comprises a first energy accumulator, a second energy accumulator, a third energy accumulator and a fourth energy accumulator.

[0015] After the above structure is adopted, the present application has the following advantages: the shock-absorbing oil cylinder used for connecting the main frame and the auxiliary frame of the present application can greatly reduce the instability of the whole machine on a bumpy road in actual operation by connecting the energy accumulator, improve the operation feeling of the operator, and the whole machine is connected and fastened, and has a low failure rate.

[0016] The chassis heightening system has a limiting function, can heighten the chassis height according to actual working conditions, can automatically adjust the chassis width according to actual operation conditions, solves the limitation of actual operation work, can make the machine tool play the maximum role, and saves the use cost. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a side view structural schematic diagram of a profiled chassis of a spray boom sprayer.

[0018] Figure 2 is a front view structural schematic diagram of a profiled chassis of a spray boom sprayer.

[0019] Figure 3 is a walking support arm structural schematic diagram of a profiled chassis of a spray boom sprayer.

[0020] Figure 4 is a walking support arm side sectional view structural schematic diagram of a profiled chassis of a spray boom sprayer.

[0021] Figure 5 is a three-dimensional structural schematic diagram of a profiled chassis of a spray boom sprayer.

[0022] Figure 6 is a top view structural schematic diagram of a profiled chassis of a spray boom sprayer.

[0023] As shown in the figure: 1, frame; 2, sub-frame; 3, connecting support arm; 4, connecting ear; 5, connecting bearing; 6, shock absorbing oil cylinder; 61, first shock absorbing oil cylinder; 62, second shock absorbing oil cylinder; 63, third shock absorbing oil cylinder; 64, fourth shock absorbing oil cylinder; 7, steering oil cylinder; 71, first steering oil cylinder; 72, second steering oil cylinder; 73, third steering oil cylinder; 74, fourth steering oil cylinder; 8, sub-frame cross beam; 9, sub-frame girder; 10, telescopic shaft; 11, telescopic sleeve; 12, first widening oil cylinder; 13, second widening oil cylinder; 14, energy accumulator; 141, first energy accumulator; 142, second energy accumulator; 143, third energy accumulator; 144, fourth energy accumulator; 15, walking support arm; 151, first walking support arm; 152, second walking support arm; 153, third walking support arm; 154, fourth walking support arm; 16, telescopic slide rail; 17, energy storage slide rail. DETAILED DESCRIPTION

[0024] The application will be further described in detail below in combination with the drawings.

[0025] In combination with the drawings Figures 1-6, the spray bar sprayer profile chassis, it includes bottom main frame 1 and top two side vice frame 2, the vice frame 2 in the middle of two sides is welded with vice frame crossbeam 8 and vice frame girder 9, the bottom of vice frame 2 is welded with connecting branch 3, the connecting branch 3 is hinged with connecting lug 4, the connecting lug 4 is equipped with connecting bearing 5 with main frame 1, namely the connecting lug 4 is two, the upper and lower ends are connected with connecting branch, main frame respectively, and it is a linkage mechanism;

[0026] The top of the four corners of the main frame 1 is provided with a shock-absorbing oil cylinder 6, the upper end of the shock-absorbing oil cylinder 6 is connected with the vice frame 2, the shock-absorbing oil cylinder 6 is connected with an energy accumulator 14, the energy accumulator 14 is connected with the shock-absorbing oil cylinder 6, the upper end of the shock-absorbing oil cylinder 6 is connected with the vice frame 2, and the lower end is connected with the main frame 1, so that the whole vice frame 2 and the main frame 1 can be floatingly damped by four shock-absorbing oil cylinders, the shock-absorbing oil cylinder 6 comprises a first shock-absorbing oil cylinder 61, a second shock-absorbing oil cylinder 62, a third shock-absorbing oil cylinder 63 and a fourth shock-absorbing oil cylinder 64, and the energy accumulator 14 comprises a first energy accumulator 141, a second energy accumulator 142, a third energy accumulator 143 and a fourth energy accumulator 144 corresponding to the first shock-absorbing oil cylinder 61, the second shock-absorbing oil cylinder 62, the third shock-absorbing oil cylinder 63 and the fourth shock-absorbing oil cylinder 64.

[0027] The bottom of the four corners of the main frame 1 is provided with a walking branch 15, the walking branch 15 comprises a top adjusting structure and a bottom walking support structure, the adjusting structure comprises a lifting oil cylinder 18, a telescopic slide rail 16 and an energy storage slide rail 17, the telescopic slide rail 16 and the energy storage slide rail 17 are arranged on both sides of the lifting oil cylinder 18, and the lifting oil cylinder 18, the telescopic slide rail 16 and the energy storage slide rail 17 can drive the walking support structure to ascend and descend for adjusting operation, that is, when the bottom walking support structure is adjusted in height by driving the lifting oil cylinder 18 to ascend and descend, the left and right slide rails are synchronously driven to ascend and descend by the lifting oil cylinder 18, and the energy storage slide rail 17 can absorb part of the stress, thereby increasing the structural reliability.

[0028] The two sides of the main frame 1 are provided with a first widening oil cylinder 12 and a second widening oil cylinder 13, the main frame 1 is provided with a telescopic shaft 11 penetratingly arranged, the outer side of the main frame 1 is provided with a telescopic sleeve 10 sleeved with the telescopic shaft 11, the power end of the first widening oil cylinder 12 and the second widening oil cylinder 13 is connected with the telescopic sleeve 10, and the outer side of the telescopic sleeve 10 is connected with the connecting lug 4, that is, as shown in the figure, the telescopic shaft 11 penetrates through the two sides of the main frame 1, then the outer side of the main frame 1 is provided with a connecting piece, the top of the connecting piece is provided with a connecting bearing 5 connected with the connecting lug 4, then the inner side is provided with the telescopic sleeve 10 sleeved with the telescopic shaft 11, and the connecting piece is connected with the power end of the widening oil cylinder, then the widening oil cylinder can be telescoped, so that the chassis can be widened and narrowed.

[0029] The main frame 1 and the walking support arm 15 are provided with a common hinge, and a steering oil cylinder 7 is arranged in the common hinge; the walking support arm 15 is rotatably connected to the main frame 1; the walking support arm 15 comprises a first walking support arm 151, a second walking support arm 152, a third walking support arm 153 and a fourth walking support arm 154; the steering oil cylinder 7 comprises a first accumulator 71, a second accumulator 72, a third accumulator 73 and a fourth accumulator 74; the steering oil cylinder 7 is connected to the top end of each walking support arm; the steering oil cylinder 7 is extended and retracted to control the walking support arm 15 to perform a steering action; the walking support arm 15 is connected to the main frame 1 through the steering oil cylinder 7; and the steering oil cylinder is extended and retracted to drive the walking support arm 15 to rotate left and right.

[0030] The above description of the present application and its embodiments is not restrictive, and the actual structure is not limited thereto. In summary, if a person skilled in the art is inspired by it, without departing from the purpose of the present application, similar structural modes and embodiments can be designed without creativity, which should belong to the protection scope of the present application.

Claims

1. Boom sprayer contoured chassis, characterized by: It comprises a bottom main frame (1) and two side sub-frames (2) on the top, wherein the sub-frames (2) on both sides are welded with a sub-frame crossbeam (8) and a sub-frame main beam (9) in the middle, and the bottom of the sub-frame (2) is welded with a connecting arm (3), and the connecting arm (3) is hinged with a connecting ear (4), and the connecting ear (4) and the main frame (1) are jointly provided with a connecting bearing (5); Shock-absorbing oil cylinders (6) are provided at the top of the four corners of the main frame (1), the upper ends of the shock-absorbing oil cylinders (6) are connected to the auxiliary frame (2), and the shock-absorbing oil cylinders (6) are connected to an accumulator (14); The main frame (1) is provided with walking arms (15) at the four corners at the bottom. The walking arms (15) include a top adjustment structure and a bottom walking support structure. The adjustment structure includes a lifting cylinder (18), a telescopic slide rail (16) and an energy storage slide rail (17). The telescopic slide rail (16) and the energy storage slide rail (17) are arranged on both sides of the lifting cylinder (18). The lifting cylinder (18), the telescopic slide rail (16) and the energy storage slide rail (17) can drive the walking support structure to perform lifting and adjustment operations.

2. The contoured chassis of the boom sprayer according to claim 1, characterized in that: A first widening oil cylinder (12) and a second widening oil cylinder (13) are provided on both sides of the main frame (1), the main frame (1) is provided with a telescopic shaft (11) which is arranged through the main frame (1), a telescopic sleeve (10) which is sleeved on the telescopic shaft (11) is provided on the outside of the main frame (1), the power ends of the first widening oil cylinder (12) and the second widening oil cylinder (13) are connected to the telescopic sleeve (10), and the outside of the telescopic sleeve (10) is connected to the connecting ear (4).

3. The contoured chassis of the boom sprayer according to claim 1, characterized in that: The shock-absorbing oil cylinder (6) includes a first shock-absorbing oil cylinder (61), a second shock-absorbing oil cylinder (62), a third shock-absorbing oil cylinder (63) and a fourth shock-absorbing oil cylinder (64); the accumulator (14) includes a first accumulator (141), a second accumulator (142), a third accumulator (143) and a fourth accumulator (144) corresponding to the first shock-absorbing oil cylinder (61), the second shock-absorbing oil cylinder (62), the third shock-absorbing oil cylinder (63) and the fourth shock-absorbing oil cylinder (64).

4. The contoured chassis for a boom sprayer according to claim 1, characterized in that: A steering oil cylinder (7) is hingedly provided between the main frame (1) and the traveling arm (15), and the traveling arm (15) is rotatably connected to the main frame (1).

5. The contoured chassis of the boom sprayer according to claim 4, characterized in that: The traveling arm (15) includes a first traveling arm (151), a second traveling arm (152), a third traveling arm (153) and a fourth traveling arm (154); the steering cylinder (7) includes a corresponding first accumulator (71), a second accumulator (72), a third accumulator (73) and a fourth accumulator (74).

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