CN106034768A - Vehicle-mounted type hedge pruning machine - Google Patents

Abstract

The invention belongs to the technical field of hedge trimming, and in particular relates to a vehicle-mounted hedge trimmer capable of trimming hedges of different shapes and having a simpler and smoother trimming process. The vehicle-mounted hedge trimmer includes a walking device, a lifting device and a trimming device. The walking device is a mechanical structure that guides the trimming device to move. The lifting device is a mechanical structure that guides the trimming device to adjust its height. The lifting device is installed on the walking device. The trimming device is installed on the lifting device. With the structure of the present invention, the hedge can be trimmed more easily and quickly. Since the trimming tool is installed between two relatively parallel guide rails, the hedge can be designed and trimmed in a predetermined shape. At the same time, the trimming tool is designed. The design can ensure that the machine is not stuck during the process of trimming the hedge, which ensures the normal working state of the device and prolongs the service life of the device.

Description

Vehicle mounted hedge trimmer

technical field

The invention belongs to the technical field of hedge pruning, and in particular relates to a vehicle-mounted hedge trimmer capable of pruning hedges of different shapes and having a simpler and smoother construction process.

Background technique

At present, with the continuous acceleration of the pace of urban modernization, the greening of cities and roads has received high attention. A large number of hedges have been used in garden landscapes and greening on both sides of roads to beautify the city and improve the road environment. Yet these hedges basically all adopt the method for hand-held hedge trimmer to carry out artificial pruning, and the shape of pruning has horizontal plane, vertical plane, inclined plane, cylindrical surface, spherical surface etc. But people mostly trim the hedges into regular strips in order to save time and effort, and the hedges that are trimmed do not have unique aesthetics, and it is difficult to give people the enjoyment of beauty.

Hedges can play the role of covering bad viewpoints, isolating protection and preventing dust and noise. Since hedges grow freely and can form various shapes, their pruning work is very important. On the one hand, hand-held hedge trimmers are laborious because they are held in hand. On the other hand, hedges often need to be trimmed on three sides, and workers are forced to move with a load, so it is very labor-intensive. Because of the differences in the technical level of the workers themselves and the reference objects, it is difficult to achieve uniform trimmed hedges, so the effect of trimming is not optimistic.

At the same time, because hedgerows are mostly woody plants, traditional pruning tools often encounter machine jamming when encountering hard woody stems, which affects the pruning effect and also brings excessive load to the motor, which affects the service life. .

Contents of the invention

The object of the present invention is to provide a vehicle-mounted hedge trimmer capable of trimming different shapes, with higher hedge trimming efficiency and lower chance of getting stuck.

The purpose of the present invention is achieved like this:

The vehicle-mounted hedge trimmer includes a walking device, a lifting device and a trimming device. The walking device is a mechanical structure that guides the trimming device to move. The lifting device is a mechanical structure that guides the trimming device to adjust its height. The lifting device is installed on the walking device. The trimming device is installed On the lifting device, the trimming device includes a blade guide rail mold and a trimming tool, the blade guide rail mold is composed of two relatively parallel guide rails connected by telescopic rods, and the trimming tool is installed between the two relatively parallel guide rails , to move laterally through the guide rails, and the two relatively parallel guide rails are arc-shaped, wave-shaped or zigzag-shaped.

The lifting device is installed on a flatbed truck, and its overall structure is composed of connected and parallel scissor-type arms. In the pulley groove on the flat plate, a hand-operated threaded rod lifting structure is interspersed in the middle connection of the two scissor-type arms. The hand-operated threaded rod lifting structure includes a threaded rod, a nut, and a perforated connecting rod. A connecting rod is threadedly connected with a nut, and the other end of the threaded rod is an L-shaped hand rocker, and the protruding part of the hand rocker is covered by a rubber sleeve.

The two relatively parallel guide rails are long rails with a T-shaped longitudinal section.

The trimming tool is sleeved on the T-shaped guide rail through a sliding sleeve.

The walking device is a wheeled flatbed, and four shock-absorbing universal wheels are installed under the flatbed.

The trimming tool is composed of a motor and at least two blades, each blade has at least one row of teeth on its body, wherein the motor is connected to at least one of the blades, so that at least one of the blades is opposite to each other. Compared with the relative movement of other blades, the blade shape of the blade teeth is:

x ^0.33 ≤y≤x ^0.5 ，0cm＜x≤1cm

x ^0.33 ≥y≥x ^0.5 ，1cm＜x≤2cm

Wherein x is the radial distance of the blade along the body of the blade, y is the height of the blade, and x=0 is the starting point of the blade on the body of the blade, and the blade is directly connected to the body of the blade at the highest point.

The determination of the radial distance x of the blade along the blade body is related to the cutting frequency f of the blade, and the specific relationship is:

x=-0.5f ² +3f-2.5, where 3 times/second≤f<5 times/second, the cutting frequency f is the number of times a point on the tooth of the knife passes the blade per second.

The beneficial effect of the present invention is that the hedge can be trimmed more easily and quickly through the structure of the present invention, since the trimming tool is installed between two relatively parallel guide rails, the hedge can be designed and trimmed in a predetermined shape, and at the same time The pruning tool is designed, which can ensure that the machine is not stuck during the process of pruning the hedge, ensures the normal working state of the device, and prolongs the service life of the device.

Description of drawings

Fig. 1 is a schematic diagram of the structure of the present invention.

Fig. 2 is a front view of the structure of the present invention.

Fig. 3 is a right view of the structure of the present invention.

Fig. 4 is a detailed schematic diagram of the connection between the motor and the cutter in the structure of the present invention.

Fig. 5 is a schematic diagram of the pruning device of the present invention.

Fig. 6 is a schematic diagram of the structure of the lifting rod of the present invention.

Fig. 7 is a top view of the present invention.

Fig. 8 is a schematic diagram of the blade shape.

Fig. 9 is a schematic diagram of the relationship between the determination of the radial distance x of the blade along the blade body and the cutting frequency f of the blade.

Fig. 10 is a schematic diagram of the relationship between the distance between blades along the blade blade and the cutting frequency f.

Fig. 11 is a schematic diagram of the relationship between the cutting frequency and the lateral trimming speed v of the trimming tool.

Figure 12 is a schematic diagram of the specific structure of the blade.

detailed description

The present invention will be further described below in conjunction with the accompanying drawings.

Aiming at the problems in the prior art, the invention provides a vehicle-mounted hedge trimmer capable of trimming hedges of different shapes. The hedge trimmer integrates the functions of walking, lifting, and trimming. The vehicle-mounted and liftable type improves the work efficiency of workers when trimming and the adaptability of the trimmer to hedge environments of different heights and widths. The replaceable trimming mold allows trimming The hedges present a unique, non-deformable, and full of charm geometric patterns.

A vehicle-mounted hedge trimmer includes a traveling device, a lifting device, and a trimming device.

The walking device is a flat trolley with wheels, two fixed shafts connected to the scissor arm and two pulley grooves are installed above the flat, and four shock-absorbing universal wheels are installed under the flat.

The lifting device is installed on a flat trolley, and its overall structure is composed of two connected and parallel scissor arms. The front two arm bars are connected with the fixed shaft on the flat plate, and the ends of the rear two arm bars have pulleys placed in the pulley grooves. There is a hand-operated threaded rod for height adjustment in the middle of the connection between the two arms. The threaded rod is interspersed in the parallel and opposite connecting rods. The worker can lift the arm by manually shaking the threaded rod.

The pruning device is different blade guide rail molds and pruning tools. The blade guide rail molds are composed of two parallel guide rails connected by telescopic rods. The pruning tools move along the guide rails under thrust to trim the hedge.

As a preference, the longitudinal section of the blade guide rail is T-shaped, and the trimming tool is set on the guide rail through two hexagonal sliding sleeves, and five pulleys are fixed on the inside of the sleeve, which are respectively distributed on the upper bottom surface of the T-shaped guide rail. And four sides, when the tool moves, the pulley slides along the five sides of the T-shaped guide rail.

Preferably, the shape of the tool guide mold has arc shape, wave shape and triangle shape.

Preferably, the guide rail mold is a frame structure with telescopic rods blocking hedge branches in the middle, which realizes the effect of trimming hedges of different widths in real life.

As shown in the accompanying drawings: the vehicle-mounted hedge trimmer includes: universal wheel 1, first plate 2, pulley groove 3, fixed shaft 4, scissor arm 5, connecting rod 6, hand threaded rod 7, rubber sleeve 8. Second plate 16, hand push rod 9, card slot 19, T-shaped guide rail 11, telescopic rod 18, telescopic sleeve 10, diesel engine 12, push rod 13, trimming tool 14, sliding sleeve 15, nut 20, pulley 21 , Transmission rod 22.

Concrete connection mode: four universal wheels 1 are fixed on the bottom of the first flat plate 2 by screws to form a walking device; there are four connection ports of the scissor-type arm bar 5 on the first flat plate 2, and the first two connection ports are connected to each other by screws. The fixed shaft 4 is connected, and the pulleys connected to the two rear connection ports are placed in the pulley groove 3 with a baffle. The second plate 9 is fixedly connected with the four scissor arms 5. The first plate 2 and the second plate 16 Constitute lifter; Two draw-in slots 19 on the left side of the second flat plate are connected with T-shaped guide rail 11, and telescopic link 14 is connected by telescopic sleeve 15 between two T-shaped guide rails 11, and trimming cutter 16 right-hand ends have a six The side-shaped sliding sleeve 15 has five pulleys 21 fixed on the inside of the sleeve, which are respectively distributed on the upper bottom surface and four sides of the T-shaped guide rail 11. A diesel engine 12 is installed above the guide rail, and the diesel engine 12 transmits power for the trimming tool 14 through the transmission rod 22 .

Working principle: When the vehicle-mounted hedge trimmer enters the garden and green space to work, first adjust the height of the trimming tool by adjusting the lifting device according to the expected height of the hedge after trimming, and then adjust the telescopic rod of the trimming mold to a suitable extension position And lock the telescopic sleeve, then start the motor, the trimming tool works under the drive of the motor, then the worker pushes the hand push rod on the motor, and the trimming tool walks on the guide rail to realize the trimming of the hedge.

Example 1

The vehicle-mounted hedge trimmer includes a walking device, a lifting device and a trimming device. The walking device is a mechanical structure that guides the trimming device to move. The lifting device is a mechanical structure that guides the trimming device to adjust its height. The lifting device is installed on the walking device. The trimming device is installed On the lifting device, the trimming device includes a blade guide rail mold and a trimming tool, the blade guide rail mold is composed of two relatively parallel guide rails connected by telescopic rods, and the trimming tool is installed between the two relatively parallel guide rails , the lateral movement is carried out through the guide rails, and the two relatively parallel guide rails are arc-shaped, wave-shaped or zigzag-shaped respectively.

The device constructed according to the above structure can trim the hedge into a neat and beautiful arc shape, wave shape or zigzag shape according to the shape of the parallel guide rails.

Example 2

Similar to Embodiment 1, the difference is that the lifting device is installed on a flatbed truck, and its overall structure is composed of connected and parallel scissor arms. There are pulleys at the ends of the two arms placed in the pulley grooves on the flat plate, and a hand-operated threaded rod lifting structure is interspersed at the middle connection of the two scissor-style arms. The hand-operated threaded rod lifting structure includes threaded rods, nuts, perforations A connecting rod, wherein one end of the threaded rod passes through two connecting rods and is threadedly connected with a nut, and the other end of the threaded rod is an L-shaped hand rocker, and the protruding part of the hand rocker is covered by a rubber sleeve.

The structure can adjust the overall height of the present invention, and can adapt to the hedge trimming requirements of different heights.

Example 3

Similar to Embodiment 1, the difference is that the two relatively parallel guide rails are long rails with a T-shaped longitudinal section. The trimming tool is sleeved on the T-shaped guide rail through a sliding sleeve.

Through this setting, the pruning tool can be fixed more firmly to ensure that it is more stable when walking on the guide rail.

Example 4

Similar to Embodiment 1, the difference is that the walking device is a wheeled flatbed, and four shock-absorbing universal wheels are installed under the flatbed. The multidirectional movement of the whole device is guaranteed.

Example 5

Similar to Embodiment 1, the difference is that the pruning cutter consists of a motor and at least two blades, each blade includes at least one row of cutter teeth on the body of the blade, wherein the motor is connected to at least one of the blades , so that at least one of the blades moves relative to the other blades, as shown in Figures 8 and 12, the blade shape of the teeth is:

x ^0.33 ≤y≤x ^0.5 ，0cm＜x≤1cm

x ^0.33 ≥y≥x ^0.5 ，1cm＜x≤2cm

Wherein x is the radial distance of the blade along the body of the blade, y is the height of the blade, and x=0 is the starting point of the blade on the body of the blade, and the blade is directly connected to the body of the blade at the highest point. The reverse transverse distance from the top of the blade to the ridge of the blade is equal to the longitudinal distance y.

The above structure is shown in Figure 8. When the hardness of the stem of the hedge to be trimmed is low, a blade with a smooth blade can be selected, and when the hardness of the stem is high, a blade with a steeper blade can be selected. If you use a blade with a smoother blade when the hardness is high, it will cause a jam phenomenon. If the stem is flexible, use a steeper blade to get stuck and affect the trimming effect. Among them, after research and data fitting, when y=x ^0.45 , the most common hedge trimming effect can be achieved at present.

Example 6

Similar to Embodiment 1, as shown in Figure 9, the difference is that the determination of the radial distance x of the blade along the blade body is related to the cutting frequency f of the blade, and the specific relationship is: x=-0.5f ² +3f-2 ^.5 , where 3 times/sec≤f<5 times/sec, the cutting frequency f is the number of times a point on the blade tooth passes the blade per second.

When the blade is finer, the cutting speed of the blade is required to be faster, that is, the frequency is higher, so that the efficiency of the blade can be fully utilized. When the blade is sparse, the cutting speed of the blade should not be too fast, because the blade is longer and higher. The greater the force, the faster the speed will break the blade. With the cooperation of this frequency and the blade, it can avoid the idling of the motor, that is, the hedge has actually been cut, but the blade is still cutting, and it can avoid the hedge before the cutting is completed. The cutting effect is the best and the efficiency is the highest when the knife has already pressed the hedge.

Example 7

Similar to Embodiment 1, as shown in Figure 10, the difference is that the distance between the blade and the blade along the body of the blade is d:

d=-0.3f ² +1.5f+1.25, 3 times/sec≤f<5 times/sec, the unit of d is mm.

After research, the distance between the blades needs to be within an appropriate range to effectively cut the hedge. When the distance is too long, the force between the two blades will be too small, resulting in poor trimming effect. At the same time, if the frequency is too high, if the blade Density will reduce the efficiency of the blade, and some blades will appear empty cutting. The setting under this condition can ensure the best effect of the tool. It not only ensures the avoidance of air cut, but also helps to improve the efficiency of the motor.

Example 8

Similar to Embodiment 1, as shown in Figure 10, the difference is that: the relationship between the cutting frequency and the trimming cutter transverse trimming speed v is:

f=-0.242v ² +1.94v+2.091, 0.5m/s≤v≤2m/s.

If the speed of the trimmer is too fast and the frequency is too slow, it will affect the trimming effect, and if the speed is too slow and the frequency is too fast, the motor will run idle. Therefore, we can ensure that the relationship between the cutting frequency and speed of the blade is as follows Motor efficiency avoids air-cutting.

In summary, the present invention discloses a vehicle-mounted hedge trimmer, which includes a trolley traveling mechanism, a hand-operated lifting mechanism, a trimming mold, a trimming tool, and a T-shaped guide rail. The hand-operated lifting mechanism is installed on the first On the flat plate, the trimming mold is connected with the second flat plate. There is a pruning tool and a telescopic rod for blocking branches on the trimming mold. The pruning tool is set on the T-shaped guide rail through a sliding sleeve. After starting the diesel engine, push the hand push rod on the diesel engine to trim. The cutter can trim out the shape set by the trimming die. The pruning mold of the present invention is replaceable and can be changed into different shapes, and the shape of the pruned hedge is more beautiful, and the integration of multiple functions makes the work of pruning the hedge simple, light, time-saving and labor-saving.

Claims (7)

1. on-vehicle hedge clipping machine, including running gear, lowering or hoisting gear and clipping device, running gear is for guiding clipping device The frame for movement of movement, lowering or hoisting gear is the frame for movement guiding clipping device to adjust height, and lowering or hoisting gear is arranged on walking dress Putting, clipping device is arranged on lowering or hoisting gear, it is characterised in that: described clipping device includes blade guide rail mould and pruning Cutter, blade guide rail mould is that the two opposing parallel guide rails connected by expansion link are constituted, and described trimming tool is installed Between two opposing parallel guide rails, being laterally moved by guide rail, two described opposing parallel guide rails are respectively Circular arc, waveform or fold-line-shaped.

On-vehicle hedge clipping machine the most according to claim 1, it is characterised in that: described lowering or hoisting gear is arranged on flat board Che Shang, its unitary construction is made up of the scissor-type armed lever being connected and be placed in parallel, and front arms bar is with the fixing axle on flat board even Connecing, the end of rear arms bar is placed in the pulley groove on flat board with pulley, and two scissor-type armed lever intermediate connections intert Hand threaded rod lifting structure, hand threaded rod lifting structure is had to include threaded rod, nut, perforation connecting rod, wherein threaded rod One end is connected through two connecting rods with nut thread, and the threaded rod other end is the joystick of Z-type, and joystick extension has rubber Hide glue set entangles.

On-vehicle hedge clipping machine the most according to claim 1, it is characterised in that: two described opposing parallel guide rails It is T-shaped strip rail for longitudinal section.

On-vehicle hedge clipping machine the most according to claim 1, it is characterised in that: described trimming tool passes through slip cap Jacket casing is at T-shaped guide rail.

On-vehicle hedge clipping machine the most according to claim 1, it is characterised in that: described running gear is the flat of belt wheel Wooden handcart, is provided with four damping universal wheels below flat board.

On-vehicle hedge clipping machine the most according to claim 1, it is characterised in that: described trimming tool by motor and At least two blade forms, and the blade of each blade includes at least one row's cutter tooth, and wherein said motor is connected to described cutter At least one blade in sheet, makes the relative motion relative to other blades of at least one blade in blade, described cutter tooth Cutting edge shape be:

x^0.33≤y≤x^0.5, 0cm ＜ x≤1cm

x^0.33≥y≥x^0.5, 1cm ＜ x≤2cm

Wherein x is the blade radial distance along the blade of blade, and y is the height of blade, is the blade starting point at blade at x=0, Blade is directly connected to the blade of blade at peak.

On-vehicle hedge clipping machine the most according to claim 1, it is characterised in that: described blade is along the radial distance of blade The determination of x is relevant with the cutting frequency f of blade, and physical relationship is:

X=-0.5f²+ 3f-2.5, wherein 3 times/second≤f ＜ 5 time/second, cutting frequency f is a little through blade on cutter tooth each second Number of times.