Three-way suspension type damping system of wide boom sprayer

Abstract

The three-way suspension type damping system of the wide spraying boom pesticide sprayer comprises a portal frame, a sliding frame and a balance frame; the portal frame is a rectangular frame structure, which is fixedly connected with a suspension frame, and the suspension frame is used for being fixedly connected with a power equipment such as a tractor; the sliding frame can slide up and down along the inner sides of the portal frame, the sliding frame is a rectangular frame structure, guide sliding blocks are fixedly connected to the two sides of the sliding frame, vertical sliding grooves are arranged on the inner sides of the two sides of the portal frame, the guide sliding blocks can be clamped in the vertical sliding grooves and can move up and down along the vertical sliding grooves; the balance frame is rotatably connected with the upper middle position of the sliding frame through a suspension shaft, the balance frame can rotate along the axis of the suspension shaft without limitation, and the balance frame can move up and down along with the sliding frame. The pesticide sprayer adopting the structure can offset the vibration in each direction through three-way damping when uneven ground is encountered during work, so that the safety of equipment work and the stability of pesticide spraying can be ensured.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of field spraying equipment, in particular to a three-way suspension type vibration damping system of a wide boom spraying machine. BACKGROUND

[0002] During the growth of crops, diseases and pests often occur, in order to prevent the occurrence of diseases and pests, people often use field spraying equipment to spray pesticides on crops. The traditional spraying machine often uses a wide folding boom spraying machine, in order to improve the work efficiency, wider spraying width is used on the spraying machine. With the increase of the spraying width of the spraying machine, the folding arms on both sides for installing the spraying boom will be wider and wider when unfolded, which will cause the folding arms to swing in horizontal, vertical and up-down directions with large amplitude when the spraying machine encounters uneven terrain during traveling, the working parameters such as the ground clearance of the spraying boom of the spraying machine will change constantly, which finally affects the spraying quality of the spraying machine on crops, and some can even affect the running state of the tractor carrying the spraying machine. Therefore, it is a technical problem to be solved to improve the stability and balance of the wide spraying machine folding arm during operation. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a three-way suspension type vibration damping system of a wide boom spraying machine, which can realize vibration reduction and self-adaptive balance of the folding arm of the spraying machine during unfolding and spraying.

[0004] To solve the above technical problems, the present application is implemented in the following manner: the three-way suspension type vibration damping system of the wide boom spraying machine comprises a portal frame, a sliding frame and a balance frame.

[0005] The two sides of the sliding frame can slide up and down along the inner side of the portal frame; the two sides of the sliding frame are fixedly connected with lifting cylinders vertically symmetrically, the top pulley is fixedly connected with the top of the piston rod of the lifting cylinder, and the bottom pulley is fixedly connected with the two sides of the sliding frame; a plurality of buffer springs are connected side by side downward at the top of the portal frame, the buffer springs are connected into one body through the hanging plate at the bottom, and the fixed buckles are fixedly connected symmetrically with the two sides below the portal frame; two pull ropes are wound around the top pulley and then around the bottom pulley, one end of each pull rope is connected with the fixed buckle, and the other end is connected with the hanging plate;

[0006] The balance frame is rotatably connected with the upper end of the sliding frame through the suspension shaft at the middle position of the upper end of the balance frame; the lower end of the central plane of the balance frame is provided with a locking groove, and the lower end of the central plane of the sliding frame is provided with a rotatable locking block driven by a locking cylinder; the locking block can be clamped in the locking groove; a damper is connected between the balance frame and the sliding frame;

[0007] The suspension shaft is provided with a ball head at one end, and the ball head is connected with a suspension plate fixed on the sliding frame to form a ball head rotary connection, and the other end is fixedly connected to the center of the damping box.

[0008] The damping box is provided with a transverse long hole in the front side; two spring plates are arranged, and the two spring plates are fixedly connected to the rear end of the damping box; the spring plates are also provided with a transverse long hole at the position corresponding to the long hole in the front side of the damping box; the shaft seat is arranged in the middle of the damping box, and the upper, lower, left and right four directions of the shaft seat are clamped and limited by the conical clamping blocks made of nylon and arranged in the damping box; the clamped plate is clamped and fixed by the front and rear spring plates, and a circular hole is arranged at the center of the clamped plate; the suspension shaft of the balance frame passes through the long hole in the front end of the damping box, the seat hole of the shaft seat, the long hole on the front spring plate, the circular hole of the clamped plate and the long hole on the rear spring plate.

[0009] The balance frame is an isosceles trapezoidal frame structure, and the two sides are symmetrically connected with folding arms.

[0010] The gantry support is a rectangular frame structure, and is fixedly connected with the suspension frame.

[0011] The sliding frame is a rectangular frame structure, and the two sides are fixedly connected with guide sliding blocks; vertical sliding grooves are arranged on the inner sides of the two sides of the gantry support, and the guide sliding blocks can be clamped in the vertical sliding grooves and can move up and down along the vertical sliding grooves.

[0012] One end of the damper is fixed with the balance frame, and the other end is fixed with the fixed connecting plate on the sliding frame.

[0013] The positive effects of the present application are as follows:

[0014] The wide spraying rod pesticide spraying machine three-way suspension type damping system is used in a suspension type large spraying width plant protection equipment, and the equipment has a wide spraying width, that is, the working width of the unfolded folding arm is large. Once uneven ground is encountered, the unfolded folding arm will vibrate greatly. If no intervention is made on the vibration, the folding arm may be seriously damaged, and even the stability of the tractor may be affected. Therefore, three-way damping is needed to buffer the vibration of the folding arm. After three-way damping, the multi-degree-of-freedom damping system can offset the vibration in each direction, so as to ensure the safety of the equipment and the stability of the pesticide spraying. BRIEF DESCRIPTION OF DRAWINGS

[0015] The present application will be further described in detail below in combination with the drawings and specific embodiments.

[0016] Figure 1 is a structural schematic diagram of the present application

[0017] Figure 2 is a structural schematic diagram of the present application

[0018] Figure 3 is the exploded view of the present application

[0019] Figure 4 is the balance frame connecting structure schematic diagram of the present application

[0020] Figure 5 is the balance frame connecting structure schematic diagram of the present application

[0021] Figure 6 is the balance frame connecting structure schematic diagram of the present application

[0022] Figure 7 is the sliding frame structure schematic diagram of the present application

[0023] Figure 8 is the damping box structure schematic diagram of the present application

[0024] Figure 9 is the damping box structure schematic diagram of the present application

[0025] Wherein, 1, suspension frame; 2, gantry support; 3, balance frame; 4, folding arm; 5, sliding frame; 6, buffer spring; 7, hanging plate; 8, top pulley; 9, lifting cylinder; 10, fixed buckle; 11, bottom pulley; 12, locking cylinder; 13, suspension shaft; 14, locking block; 15, locking groove; 16, connecting plate; 17, damper; 18, spring plate; 19 damping box; 20, conical clamping block; 21, seat hole; 22, shaft seat; 23 clamped plate; 24, hanging plate. DETAILED DESCRIPTION

[0026] As a specific embodiment of the present application, as shown in Figure 1 the wide spraying boom spraying machine three-way suspension type damping system of the present application includes gantry support 2, sliding frame 5 and balance frame 3; the gantry support 2 is a rectangular frame structure, which is fixedly connected with the suspension frame 1, and the suspension frame 1 is used for being hung and fixed with a power equipment such as a tractor; the sliding frame 5 is movable up and down along the inner side of the gantry support 2, and the sliding frame 5 is a rectangular frame structure, both sides of which are fixedly connected with guide sliding blocks, and the inner side of both sides of the gantry support 2 is provided with vertical sliding grooves, the guide sliding blocks can be clamped in the vertical sliding grooves and are movable up and down along the vertical sliding grooves; the balance frame 3 is rotatably connected with the upper end of the sliding frame 5 through the suspension shaft 13 at the middle position of the upper end of the balance frame 3, and the balance frame 3 is rotatable along the axis of the suspension shaft 13 without limitation; the balance frame 3 is an isosceles trapezoidal frame structure, both sides of which are symmetrically connected with folding arms 4; the balance frame 3 is movable up and down along with the sliding frame 5.

[0027] As shown in Figure 2 , Figure 3As shown, the sliding frame 5 is vertically symmetrical fixedly connected with lifting oil cylinder 9, the top pulley 8 is fixedly connected with the piston rod top of the lifting oil cylinder 9 and moves up and down with the piston rod of the lifting oil cylinder, the bottom pulley 11 is symmetrically fixed on the two sides of the sliding frame 5; the gantry bracket 2 is downwardly connected with several buffer springs 6, the buffer springs 6 are connected into one through the hanging plate 7 at the bottom, the fixed buckle 10 is symmetrically fixedly connected with the two sides below the gantry bracket 2; the two pull ropes are respectively wound around the top pulley 8 and the bottom pulley 11, one end is connected with the fixed buckle 10, and the other end is connected with the hanging plate 7; when the piston rod of the lifting oil cylinder 9 is stretched out upward, the sliding frame 5 will move upward under the driving of the pull rope, since the sliding frame 5 is hung on the hanging plate 7 below the buffer spring 6, the buffer spring 6 will also be deformed under the gravity of the sliding frame 5 to balance the gravity, when encountering uneven ground, the folding arm 4 of the spraying machine will follow the sliding frame 5 to move up and down slightly due to the action of the buffer spring 6, for the influence of the vibration.

[0028] As shown in the figure, Figures 4 to 9 The balance frame 3 is rotatably connected with the upper end of the sliding frame 5 through the suspension shaft 13 at the middle position of the upper end, one end of the suspension shaft 13 is a ball head, which is rotatably connected with the suspension plate 24 fixed on the sliding frame 5 through the ball head, and the other end is fixedly connected with the center of the damping box 19; the front side of the damping box 19 is provided with a transverse long hole; the spring plate 18 is provided with two pieces, both of which are fixedly connected with the rear end of the damping box 19, and the spring plate 18 is also provided with a transverse long hole at the position corresponding to the long hole of the front side of the damping box 19; the shaft seat 22 is arranged in the middle of the damping box 19, and the upper, lower, left and right four directions are clamped and limited by the conical clamping blocks 20 made of nylon arranged in the damping box 19; the clamped plate 23 is clamped and fixed by the front and rear spring plates 18, and a circular hole is arranged at the center; the end of the suspension shaft 13 of the balance frame 3 passes through the long hole at the front end of the damping box 19, the seat hole 21 of the shaft seat 22, the long hole on the front spring plate 18, the circular hole of the clamped plate 23 and the long hole on the rear spring plate 18. When the spraying machine encounters uneven ground during movement, the whole balance frame 3 will appear torsion in all directions with the suspension shaft 13 as the support due to the inertial action of the folding arm 4, at this time, the end of the suspension shaft 13 in the damping box 19 will drive the shaft seat 22 to extrude the conical clamping blocks 20 around it, and also drive the clamped plate 23 to move slightly between the spring plates 18 clamped on both sides; the vibration generated by the balance frame 3 will be offset by the conical clamping blocks 20 and the spring plates 18, thereby reducing the influence of the vibration of the whole machine caused by uneven ground on the folding arm 4 to a certain extent.

[0029] As shown in the figure, Figure 4As shown, the lower end of the center plane of the balance frame 3 is provided with a locking groove 15, and the lower end of the center plane of the sliding frame 5 is provided with a rotatable locking block 14 driven by a locking oil cylinder 12; the locking block 14 can be clamped in the locking groove 15, at which time the balance frame 3 will be unable to move relative to the sliding frame 5; a damper 17 is connected between the balance frame 3 and the sliding frame 5; one end of the damper 17 is fixed with the balance frame 3, and the other end is fixed with a connecting plate 16 fixed on the sliding frame 5; when the pesticide spraying machine encounters uneven ground during travel and causes the folding arms 4 on both sides of the balance frame 3 to swing up and down, due to the action of the damper 17, the amplitude of the up-and-down swinging of the folding arms 4 can be greatly reduced, and the influence of the vibration can be alleviated.

[0030] It should be particularly pointed out that the above description is only a preferred embodiment of the device structure of the present application, and does not limit the technical scope of the present application in any way. Therefore, any slight modification, modification and equivalent change made to the above examples in accordance with the core technology of the present application still belongs to the technical scope of the present application, and belongs to the protection scope of the present application patent.

Claims

1. A three-way suspension damping system for wide boom sprayers, characterized in that: Includes gantry support, sliding frame, and balance frame; The sliding frame can slide up and down along the inner side of the gantry support on both sides; lifting cylinders are fixedly connected vertically and symmetrically on both sides of the sliding frame, the top pulley is fixedly connected to the top of the piston rod of the lifting cylinder, and the bottom pulley is fixedly connected to both sides of the sliding frame; several buffer springs are connected side by side downward at the top of the gantry support, and the bottom of the buffer springs are connected as one piece by the hanging plate, and the fixing buckles are symmetrically fixedly connected to the lower sides of the gantry support; two pull ropes pass around their top pulleys and then around their bottom pulleys, one end is connected to the fixing buckle, and the other end is connected to the hanging plate; The balance frame is rotatably connected to the upper middle position of the sliding frame via a suspension shaft at the middle position of its upper end; a locking groove is provided at the lower end of the center plane of the balance frame, and a rotatable locking block driven by a locking cylinder is provided at the lower end of the center plane of the sliding frame; the locking block can be engaged in the locking groove; a damper is connected between the balance frame and the sliding frame. One end of the suspension shaft is a ball joint, which is connected to the suspension plate fixed on the sliding frame through the ball joint to form a ball joint rotational connection, and the other end is fixedly connected to the center of the vibration damping box. The vibration damping box has a horizontal elongated hole on its front side; two spring plates are provided, both of which are fixedly connected to the rear end of the vibration damping box, and the spring plates also have horizontal elongated holes at positions corresponding to the elongated holes on the front side of the vibration damping box; the bearing seat is located in the middle of the vibration damping box, and its upper, lower, left, and right directions are limited by tapered clamping blocks made of nylon material also provided in the vibration damping box; the clamped plate is clamped and fixed by the spring plates provided at the front and rear, and a round hole is provided in its center; the end of the suspension shaft of the balance frame passes through the elongated hole at the front end of the vibration damping box, the seat hole of the bearing seat, the elongated hole on the front spring plate, the round hole of the clamped plate, and the elongated hole on the rear spring plate.

2. The wide boom sprayer three-way suspension system of claim 1, wherein: The balance frame is an isosceles trapezoidal frame structure with folding arms symmetrically connected on both sides.

3. The wide boom sprayer three-way suspension system of claim 1, wherein: The gantry support is a rectangular frame structure, which is fixedly connected to the suspension frame.

4. The wide boom sprayer three-way suspension system of claim 1, wherein: The sliding frame is a rectangular frame structure with guide sliders fixedly connected to both sides. Vertical grooves are provided on the inner sides of both sides of the gantry bracket. The guide sliders can be engaged in the vertical grooves and can move up and down along the vertical grooves.

5. The wide boom sprayer three-way suspension system of claim 1, wherein: One end of the damper is fixed to the balance frame, and the other end is fixed to the connecting plate fixed on the sliding frame.

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