CN203934324U - Four-wheel synchronous automatic lifting governor motion - Google Patents

Abstract

The utility model is a four-wheel synchronous automatic lifting governor motion, is made up of sensory package, hydraulic power pack, lifting executing agency three parts, and lifting executing agency is made up of front elevator, rear elevator again.Thereby rear body drives rear wheel drive chain box to rotate and make rear body lifting around rear axle beam by hydraulic arm; Forebody drives chain sprocket and gear teeth post transmission component to carry out lifting by hydraulic arm.In work, convert alley height change to shift motion by sensory package, remove to handle oil cylinder hydraulic control valve, make oil cylinder be operated in respectively oil-feed, fuel-displaced and three kinds of states of pressurize.Piston rod also extends along with different duties or indentation, carries out lifting by predecessor and the rear body of actuating mechanism controls transplanter simultaneously, thereby drives pincers one lifting of planting, and regulates to realize the depth of planting.By the elevating control of hydraulic lifting mechanism, ensure seedling depth of planting uniformity in transplanting process.

Description

Four-wheel synchronous automatic lifting governor motion

Technical field

The utility model relates to the four-wheel synchronous automatic lifting governor motion of the seedling transplanters such as a kind of vegetables, rape.

Background technology

At present, on the seedling transplanter such as vegetables, rape, inevitably to use transplanting mechanism, and in transplanting mechanism planting pincers not only require at work its straight up and down vertically operation, also need to automatically adjust the seedling replanting degree of depth along with the high low energy of alley, remain that the seedling depth of planting is consistent, not because alley height and the sagging depth of wheel affect the depth of planting.This just need to use automatic lifting governor motion.Developed in the market a small amount of transplanter, the up-down mode that these transplanters adopt has two kinds: a kind of be can only rear body lifting transplanter, forebody can not lifting, after planting mechanism is arranged on fuselage.But this up-down mode existing problems, that is: not lifting of forebody when rear body lifting, can make to plant pincers in lifting process around doing rotation and lifting taking front axle as fulcrum.Rotation and lifting can make to plant and clamp is not to be operated in vertical direction, and the situation that causes transplanted seedling to tilt, affects Planting effect.And another kind is the four bar elevating mechanisms that adopt a kind of parallelogram, fuselage lifting simultaneously before and after making, although this elevating mechanism has ensured the lifting simultaneously of front and back fuselage, can not make transplanting pincers tilt, but in the process of lifting, machine gravity moves forward and backward larger, to machine, work brings unstable.This just need to have a kind of reasonable, practical four-wheel synchronization lifting mechanism.

Summary of the invention

The utility model has designed a kind of hydraulic pressure and the mechanical elevator combining, fuselage lifting simultaneously before and after making, and more than both having overcome, the defect of two kinds of up-down modes, manufactured again simply, and cost is low.Both the pincers that ensured to plant under any circumstance can keep vertically all the time, do not make again machine gravity produce skew and bring job insecurity, and can reach desirable Planting effect.This four-wheel synchronization lifting mechanism is made up of sensory package, hydraulic power pack, lifting executing agency three parts, and hydraulic power pack is made up of control valve, oil pump, oil cylinder, piston rod, and lifting executing agency is made up of front elevator, rear elevator again.In work, sensing part contacts all the time with above alley, is connected with hydraulic control valve operating rod by leverage, and control valve control oil cylinder is operated in oil-feed, fuel-displaced, three kinds of states of pressurize.Piston rod and the elevating mechanism of oil cylinder are connected, thereby rear body drives trailing wheel chain box to rotate and make fuselage lifting around rear axle beam by hydraulic arm; Forebody is realized lifting by chain sprocket transmission component, gear teeth post transmission component.Fuselage vertical lift, drives the lifting of cultivation value pincers synchronous vertical.The perfect condition of seedling of planting requires: in the process of planting, ridge is high constant all the time with fuselage relative altitude, and the guarantee seedling depth of planting is consistent like this.But actual planting in process, not only ridge is high changes, and is exactly ground, same ridge, because machine wheel in different locations is sagging deep mixed, also makes the high relative position in fuselage and ridge change, and causes deep mixed the causing of seedling of planting.For addressing this problem, on transplanter, add four-wheel synchronous automatic lifting mechanism.In the process of planting, in the time of the high appearance variation in ridge or the sagging depth variation of wheel, pass through sensory package, convert this variation to the mobile stroke of controlling, be used for controlling hydraulic valve in different operating position, thereby make oil cylinder be operated in oil-feed, fuel-displaced, three kinds of states of pressurize, thereby realize the automatic lifting adjusting of machine.Increase (or the sagging degree of depth of wheel increases) during when ridge is high, the pincers of planting reduce apart from ridge face height, just there will be the seedling dark situation of planting, at this moment sensory package converts this variation to shift motion and controls hydraulic valve and make oil cylinder in fuel feeding duty, and piston rod extends, and passes through actuating unit, before and after making, fuselage raises, the pincers of planting are also raised, thereby have kept planting pincers and the normal height of ridge face, also just keep the depth of planting constant; When ridge is high while reducing (or road wheel is raised by ground), the pincers of planting increase apart from ridge face height, occur the seedling shallow situation of planting.At this moment, sensory package converts this variation to shift motion, controls hydraulic valve and makes oil cylinder in oil return duty, at this moment piston rod indentation, make fuselage and the pincers of planting reduce by lifting executing agency, reduced and the height of ridge face, from and ensured that the depth of planting is constant.When ridge is high and wheel sink when normal, sensory package makes hydraulic valve pressurize (cut-off) position that mediates, and hydraulic cylinder is fuel feeding not, also not oil return, and fuselage height is constant, maintenance the best state of planting.The beneficial effects of the utility model are: this four-wheel synchronous automatic lifting governor motion at work, can not only automatically regulate the seedling depth of planting according to real work situation, keep the depth consistent, simultaneously, owing to being the lifting simultaneously of whole fuselage, the pincers that so fully ensured to plant vertically pass in and out all the time alley face in the time planting seedling, have effectively prevented from toppling over phenomenon after seedling from planting.

Brief description of the drawings

fig. 1: four-wheel synchronous automatic lifting schematic diagram of mechanism.

Fig. 2: hydraulic control system schematic diagram.In diagram: 1. rear drive sprocket, 2. drive chain box, 3. rear axle beam, 4. cantilever, 5. piston rod, 6. oil cylinder, 8, chain, 9. gear, 10. plant pincers, 13. front-wheels, 14. springs, 15. pull bars, 16. control valve arms, 17. control valves, 18. sensing parts, 19. alleys of sprocket wheel, 11. lifting tooth posts, 12..

Specific embodiments

Below in conjunction with accompanying drawing, illustrate four-wheel synchronous automatic lifting governor motion operation principle and process: under normal circumstances, the transplanter depth of planting is need to be adjusted at reasonable depth state according to seedling.On ridge, constant, the wheel of height sink in the constant situation of the degree of depth, can ensure that every strain seedling depth of planting is constant and remain on the standard depth of planting.But actual planting in process, the sagging depth of ridge height and wheel all changes at any time, and ridge is higher or wheel is sagging darker, and the depth of planting can be darker.Ridge is lower or wheel sinkage is less, makes the depth of planting can be more shallow.Change in order to proofread and correct at any time the depth of planting, the depth that keeps planting is all under any circumstance consistent, and the present invention has designed four-wheel synchronous automatic lifting regulating system, automatically to regulate the depth of planting.In figure mono-: in the time that alley increases (or the sagging intensification of wheel), the depth of planting of seedling can increase, at this moment sensing element 18 is lifted by ridge face, pull the valve arm 16 of hydraulic valve 17 to rotate by the pull bar 15 in leverage, thereby control the rodless cavity fuel feeding of hydraulic pump to oil cylinder 6, the piston and the piston rod 5 that promote in oil cylinder outwards extend, cantilever 4 clockwise rotates under the promotion of piston rod, also clockwise rotate and drive in chain box 2 clockwise rotates at the rear wheel drive chain box 2 of one with cantilever rigid connection, raise rear axle beam 3, thereby rear body is raise, meanwhile, cantilever 4 turns clockwise in process, pull sprocket wheel 10 to rotate counterclockwise by chain 8, sprocket wheel 10 is fixed on same axis with gear 9, at this moment due to gear 9 and the engagement of lifting tooth post 11, gear 9 does when being rotated counterclockwise also along moving on lifting tooth post 11, move thereby drive in transplanter predecessor, transplant pincers also with on move, thereby it is constant with ridge face relative altitude to have kept transplanting pincers, make the depth of planting constant, thereby reached the effect of the automatic adjusting seedling depth of planting.Equally, when after alley step-down (or transplanter wheel is raised by ground), the seedling depth of planting can shoal, and at this moment sensing element 17, under deadweight and spring 14 pulling force effects, can turn clockwise, until be adjacent to alley face.Sensing part 17 turns clockwise in process, by pull bar 15, the valve arm 16 of hydraulic valve 17 is rotated, and the rodless cavity of hydraulic cylinder and oil return opening are connected, under the effect of machine self gravitation, piston rod 5 indentations, trailing wheel is by cantilever 4 and drive chain box 2 to be rotated counterclockwise, thereby drives rear body to decline; Meanwhile, after the pulling force of chain 8 reduces, under machine self-gravity action, front lifter wheel clockwise rotates and moves down along lifting tooth post 11.In forebody folding process, the pincers of planting 12 also move down thereupon, from and recovered the normal depth of planting.In the time that the depth of planting meets the requirements, sensing part 18 makes the hydraulic valve 17 pressurize position that mediates, hydraulic cylinder 6 also not oil returns of now not oil-feed, and the whole system of planting is in the best state of planting.Can find out from above course of action, plant in process, while the transplanter depth of planting being changed due to external cause, transplant function and automatically recover the standard depth of planting according to change in depth situation, constant to maintain the depth of planting.Lifting simultaneously before and after fuselage, the pincers that ensured again to plant keep vertical transplanting, seedling tilt phenomenon while effectively having prevented from planting with ground all the time.

Claims (3)

1. a four-wheel synchronous automatic lifting governor motion, it is made up of sensory package, hydraulic power pack, lifting executing agency three parts, lifting executing agency is made up of front elevator, rear elevator again, it is characterized in that: rode piston rod 5 by same oil cylinder 6 and control the lifting simultaneously of front and back fuselage.

2. four-wheel synchronous automatic lifting as claimed in claim 1 mechanism, it is characterized in that: thus rear body drives rear wheel drive chain box 2 to rotate and make fuselage lifting around rear axle beam 3 by hydraulic arm 4, and forebody drives chain 8, sprocket wheel 10 and gear 9, lifting tooth post 11 transmission components to carry out lifting by hydraulic arm 4.

3. four-wheel synchronous automatic lifting as claimed in claim 1 mechanism, is characterized in that: in forebody elevator, lifter wheel 9 is fixed on same axis with sprocket wheel 10, when lifter wheel 9 rotates, also rises or declines along lifting tooth post 11.