CN102771321A - Spatial position variable branch trimmer - Google Patents

Abstract

The invention relates to a spatial position variable branch trimmer, which mainly comprises three parts, i.e. a trimming mechanism, an elevating mechanism and a rotary mechanism, wherein the trimming mechanism is supplied with power through a belt wheel, a soft shaft and the like; and with the adoption of the soft shaft, the spatial power transmission of the trimming mechanism is solved. A motor is adopted as a power source for both the elevating mechanism and the rotary mechanism, so that the trimming process is accomplished through the cooperation and the assistance of the elevating mechanism and the rotary mechanism; and moreover the elevating mechanism and the rotary mechanism can accomplish the adjusting process in a remote control or automatic mode. The branch trimmer is relatively flexible and safe and can realize the hedgerow trimming when being loaded on a simple moving chassis, and thus the working intensity of workers is lightened during the trimming process.

Description

Spatial position variable branch pruning device

technical field

The invention relates to a branch trimmer with variable spatial position, in particular to a hedge trimmer suitable for highways.

Background technique

At present, hedgerows have been widely used as landscapes and isolation belts in our country. Hedgerows need to be trimmed regularly to make the hedgerows have a certain shape or density, and play the role of beauty and isolation. The main trimming method for hedgerows in our country is manual trimming, and the main trimming tool is a handheld hedge trimmer, which has the disadvantage of high labor intensity for both landscape trimming and isolation strip trimming, and for hedges on expressways, manual trimming will It poses a certain security threat to the staff. At present, there are some large-scale vehicle-mounted hedge trimmers based on the second-class chassis of automobiles in my country, with rotary cutters on top, mainly for hedge trimming on highways, but this vehicle-mounted trimmer, Because its width is too large, it affects the normal driving on the expressway and poses a certain threat to passing vehicles.

Contents of the invention

The purpose of the present invention is to provide a stepping motor to control the lifting of the support platform and the trimming platform, and a DC motor to control the trimming platform to rotate to the working position and retract, so that the entire trimming working platform can be adjusted to a specified height, and the trimming operation can be realized. Each part cooperates under the control of the single-chip microcomputer so that the branch trimmer can automatically adjust the height or adjust the height by remote control, so as to achieve the purpose of reducing labor intensity and ensuring safety.

The purpose of the invention is achieved in this way. It is mainly divided into three parts: pruning mechanism, lifting mechanism and rotating mechanism. The work of the shearing mechanism is controlled by the electromagnetic clutch at the input end of the flexible shaft. The lifting mechanism is powered by a stepping motor, which drives the ball screw to drive the scissor mechanism to work to realize the lifting of the supporting platform. The rotation mechanism is driven by the DC motor to rotate the trimming platform, so as to realize the folding and retracting action of the trimming working platform. In this way, when the present invention is used in conjunction with a small chassis, automatic or remote control trimming of the hedges of the expressway isolation belt can be realized, ensuring the safety of workers and saving time and effort.

Description of drawings

Below quote embodiment, describe in detail as follows with the help of accompanying drawing

The front view of the general assembly drawing under the working state of Fig. 1 of the present invention

The side view of the general assembly drawing under the working state of Fig. 2 of the present invention

The top view of the general assembly drawing under the working state of Fig. 3 of the present invention

Partial sectional view of the general assembly drawing under the working state of Fig. 4 of the present invention

In the figure 1. Supporting platform, 2. Driven scissors chute, 3. Driven scissors, 4. Active scissors, 5. Trimming platform, 6. Rotating motor support seat, 7. Rotating DC motor, 8. Belt Wheel support seat, 9. drive pulley, 10. pulley drive shaft, 11. belt, 12. trim double groove pulley, 13. trim drive shaft, 14. saw blade, 15. support rod, 16. flexible shaft, 17 .Flexible shaft support seat, 18. Flexible shaft drive shaft, 19. Lifting stepper motor, 20. Motor support frame, 21. Support bottom surface, 22. Active scissor chute, 23. Screw support, 24. Ball nut , 25. Lead screw, 26. Coupling

Detailed ways

The space position variable branch trimmer of the present invention, as shown in Figure 1, its power source input is the flexible shaft transmission shaft 18 input, as the power source of pruning. Flexible shaft 16 is connected with pulley drive shaft 9 by flexible shaft connector, and trimming pulley 9 drives trimming double-groove pulley 12 to rotate by belt transmission, and trimming transmission shaft 13 two ends are respectively connected with trimming double-groove pulley 12 and Saw blades 14 are connected to realize trimming power transmission.

Lifting stepping motor 19 is as the power source of the variable branch trimmer lifting in space position, and as shown in Figure 1, lifting stepping motor 19 is fixed on the lifting motor support 20, and lifting DC motor 19 passes coupling 26 and leading screw 25 connections. Leading screw 25 two ends are fixed by bearing support with leading screw support 23 and lifting motor support 20 respectively. The leading screw 25 and the ball nut 24 on it form a ball screw nut drive. The ball nut 24 is connected with the active scissors 4 by bolts, one end of the active scissors 4 is hingedly fixed with the driven scissors chute 2, and the other end is connected by a bolt and a bearing so that it moves horizontally in the active scissors chute 22. The driving scissors 4 and the driven scissors 3 are hinged to each other in the middle position. One end of the driven scissors 3 is hingedly fixed on the active scissors chute 22, and the other end moves horizontally in the driven scissors chute 2, so that the support platform 1 moves up and down.

Rotating DC motor 7 is fixed on the rotating motor support base 6 as the power source of the rotating mechanism, and drives the trimming platform 5 to rotate.

As shown in Figure 1, it is the working state of the variable branch pruning device in space position, wherein the pruning platform 5 of the variable branch pruning device in space position is in an extended position, and it is non-working when the pruning platform 5 of the variable branch pruning device in spatial position is in a retracted state state. When the space position variable branch trimmer is moved to the initial position of pruning, according to the set initial hedge height, the lifting stepper motor 19 drives the lead screw 25 to rotate, and the ball nut 24 is adjusted to make the active scissors 4 and the driven scissors 4 The scissors 3 rotate to realize the rise or fall of the support platform 1 to the corresponding position, and complete the adjustment of the cutting height. After the adjustment is completed, the DC motor 7 is rotated to rotate the saw blade to the working position, and the entire initial adjustment process is completed. In the course of work, power is input by flexible shaft transmission shaft 18, and by flexible shaft 16, pulley transmission shaft 10, driving pulley 9 drives trimming double-groove pulley 12 to rotate by belt transmission, drives saw blade 14 to rotate by trimming transmission shaft 13, To achieve the purpose of cutting. After the work is finished, the cutting tool needs to be closed, and the flexible shaft transmission shaft 18 stops rotating, and the saw blade stops rotating naturally under the state of no external load. Rotating DC motor 7 reversely rotates until the tool is completely retracted, and the lifting stepping motor 19 drives the screw 25 to rotate, and is adjusted by the ball nut 24 to make the active scissors 4 and the driven scissors 3 rotate, restore the initial height of the support platform 1, and complete the entire pruning process. During the whole adjustment process, through the spatial distortion of the flexible shaft 16, the spatial transmission of the power of the trimming mechanism is realized, and the design of the lifting mechanism and the rotating mechanism are simplified.

Claims (4)

1. variable branch trimmer in locus, it comprises three parts such as pruning mechanism, elevating mechanism, rotating mechanism, it is characterized in that can be automatically or remote control adjust cutting range.

2. the variable branch trimmer in locus as claimed in claim 1 is characterized in that, rotary direct current electric motor is fixed on the electric rotating machine supporting seat as rotating power source, and the electric rotating machine supporting seat is fixedly connected on the support platform; Rotary direct current electric motor can drive prunes the platform rotation, stretches out thereby make when pruning mechanism's work, and pruning mechanism regained after work was accomplished.

3. the variable branch trimmer in locus as claimed in claim 1; It is characterized in that the up-down stepper motor is fixed on the lifting motor supporting seat as the power source of elevating mechanism; Be connected through shaft coupling with leading screw, leading screw cooperates with ball nut on it and forms the ball-screw nut transmission; Ball nut is through bolt and initiatively cut fork and link to each other, initiatively cuts fork one end and driven to cut the fork chute hinged, and the other end is connected with bearing by bolt, makes it can cut to pitch in the chute in active and move horizontally; Initiatively cut fork and driven to cut fork hinged in the centre position; Driven fork one end of cutting is articulated in and initiatively cuts on the fork chute; The other end can move horizontally driven cutting in the fork chute; And the driven fork chute of cutting is fixedly connected on the pruning support platform, thereby makes the pruning support platform under the drive of up-down stepper motor, can realize moving up and down.

4. the variable branch trimmer in locus as claimed in claim 1 is characterized in that, prunes mechanism's transmission of power and adopts the flexible axle transmission, makes frame for movement simply be convenient to arrange; Flexible axle power transmission shaft input power by flexible axle one end; The flexible axle other end and belt wheel propeller shaft couplings, fixed conveyor belt wheel on the belt wheel power transmission shaft drives through belt and prunes the double flute belt wheel; Drive and prune the pruning power transmission shaft that the double flute belt wheel connects then, saw blade is fixed on the pruning power transmission shaft; Pruning power transmission shaft is arranged on the belt wheel supporting seat that is fixed on the pruning platform with pruning double flute belt wheel; When rotating mechanism and elevating mechanism action, the belt wheel power transmission shaft that connects with flexible axle one end changes in the locus.

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