CN106879384A - A kind of GREEB HEDGE MACHINE automatic fault avoidnig device - Google Patents

Abstract

The invention discloses an automatic obstacle avoidance device for a hedge trimmer, which comprises a turntable for installing a boom structure, the turntable is fixedly installed on the car body, one end of the boom structure is hinged to the upper end of the turntable, and the other end of the boom structure is fixedly installed There is a tool, a base is fixed on one side of the tool, a buffer plate is connected to the base through a screw, a pressure sensor is installed on the buffer plate, a shock-absorbing spring is set on the screw between the base and the buffer plate, and the drive motor for the rotary table is also included. The control and the control module connected with the pressure sensor are equipped with a pressure sensor and a buffer device on the hedge trimmer tool. This device can not damage the working tool when encountering obstacles because it cannot avoid it. This hedge trimmer can not only achieve the traditional hedge The purpose of the pruning machine is to automatically avoid obstacles and complete pruning operations efficiently and intelligently. The device has a simple structure and can effectively achieve the purpose of pruning green belts while protecting the knives.

Description

Automatic obstacle avoidance device for hedge trimmer

technical field

The invention relates to an automatic obstacle avoidance device, in particular to an automatic obstacle avoidance device for a hedge trimmer.

Background technique

With the improvement of my country's comprehensive national strength, the country's investment in the transportation industry has increased. In the construction of the expressway, the greening of the central isolation zone and the side slope has become an indispensable part, which plays a role in restoring and improving the vegetation and natural landscape along the line destroyed by the construction of the expressway, and stabilizing the roadbed side slope. Due to the large paving area of the expressway, the greening and pruning work of its central isolation belt and side slopes is very heavy. The obstacle avoidance system plays an important role in the protection of the cutter when the vehicle-mounted hedge trimmer is working. Therefore, it is very necessary to design an automatic obstacle avoidance device for hedge trimmers.

Contents of the invention

The purpose of the present invention is to provide an automatic obstacle avoidance device for hedge trimmers to overcome the deficiencies in the prior art.

To achieve the above object, the present invention adopts the following technical solutions:

An automatic obstacle avoidance device for hedge trimmers, comprising a turntable for installing a boom structure, the turntable is fixedly installed on the car body, one end of the boom structure is hinged to the upper end of the turntable, and the other end of the boom structure is fixedly equipped with a tool, the tool One side is fixed with a base, the base is connected with a buffer plate through a screw, a pressure sensor is installed on the buffer plate, a shock absorbing spring is set on the screw between the base and the buffer plate, and it is also used for the control of the rotary table drive motor and the pressure sensor. The control module to which the sensor is connected.

Further, the turntable drives the gears to rotate through the drive motor.

Further, the jib structure can rotate in a vertical plane relative to the turntable.

Further, the base is riveted or fixed on the tool by bolts.

Further, the buffer board is a polyethylene buffer board.

Further, the jib structure is hingedly connected with the fixed column on the turntable.

Further, the boom structure includes a two-link mechanism that is hingedly connected to the fixed column at one end, and the other end of the two-link mechanism is connected to the tool through a slider device, wherein the first link on the two-link mechanism is connected to the fixed column. The first hydraulic cylinder is connected, the second hydraulic cylinder is connected between the first connecting rod and the second connecting rod, and the third hydraulic cylinder is connected between the second connecting rod and the slider device, wherein the first hydraulic cylinder, the second Both the hydraulic cylinder and the third hydraulic cylinder are controlled by the controller, wherein the slider device includes a slider arranged in the chute at the upper end of the cutter, and the upper end of the slider is respectively hinged with the second connecting rod and one end of the third hydraulic cylinder, through the third The hydraulic cylinder controls the slider to rotate relative to the second connecting rod.

Further, a counterweight is provided on the turntable, and the control module is a PLC control module.

Compared with the prior art, the present invention has the following beneficial technical effects:

The invention relates to an automatic obstacle avoidance device for a hedge trimmer, comprising a turntable for installing an arm frame structure, the turntable is fixedly installed on the car body, one end of the arm frame structure is hinged to the upper end of the turntable, and the other end of the arm frame structure is fixedly installed with a knife , a base is fixed on one side of the tool, a buffer plate is connected to the base through a screw, a pressure sensor is installed on the buffer plate, a shock-absorbing spring is set on the screw between the base and the buffer plate, and it is also used to control the drive motor of the rotary table and The control module connected with the pressure sensor is equipped with a pressure sensor and a buffer device on the hedge trimmer cutter. When an obstacle is encountered, the buffer plate produces elastic deformation to generate a pressure signal, and the shock is damped by a shock-absorbing spring, thereby preventing equipment from being damaged. In this process, the pressure sensor module on the buffer board receives the signal, and the PLC control module controls the hydraulic cylinder to perform telescopic movements to lift the entire boom structure by processing the signal collected by the pressure sensor module. The working tool will not be damaged due to the lack of avoidance. This hedge trimmer can not only achieve the purpose of the traditional hedge trimmer, but also automatically avoid obstacles, and complete the trimming operation efficiently and intelligently. The device has a simple structure and can effectively achieve trimming. The purpose of the green belt is to protect the knives at the same time.

Furthermore, the buffer plate is made of polyethylene material, which can effectively reduce the impact force brought by obstacles to the tool.

Description of drawings

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

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

Fig. 3 is a schematic diagram of the connection structure between the boom structure and the tool according to the present invention.

Fig. 4 is a schematic diagram of the structure of the cutter of the present invention.

detailed description

The present invention is described in further detail below in conjunction with accompanying drawing:

As shown in Figures 1 to 4, an automatic obstacle avoidance device for a hedge trimmer includes a turntable 1 for installing the boom structure 2, the turntable 1 is fixedly installed on the vehicle body, and the turntable 1 is driven by a drive motor to drive a gear Rotation or rotation driven by a hydraulic motor. One end of the boom structure 2 is hinged on the upper end of the turntable 1. The boom structure 2 can rotate in a vertical plane relative to the turntable 1. The other end of the boom structure 2 is fixedly equipped with a tool 3. The tool 3 One side is fixed with a base 4, the base 4 is riveted or fixed on the tool 3 by bolts, the base 4 is connected with a buffer plate 6 through a screw, and a pressure sensor 7 is installed on the buffer plate 6, between the base 4 and the buffer plate 6 A damping spring 5 is set on the screw rod of the rotary table 1, a counterweight 11 is provided on the rotary table 1, and a control module 8 for controlling the driving motor of the rotary table 1 and connecting with the pressure sensor 7 is included. The control module 8 is a PLC control module.

Its buffer plate 6 is a buffer plate of polyethylene material;

The arm frame structure 2 is hingedly connected to the fixed column on the turntable 1, wherein the arm frame structure 2 includes a two-link mechanism that is hingedly connected to the fixed column at one end, and the other end of the two-link mechanism is connected to the tool 3 through a slider device. The first hydraulic cylinder 8 is connected between the first connecting rod on the linkage mechanism and the fixed column, the second hydraulic cylinder 9 is connected between the first connecting rod and the second connecting rod, and the connection between the second connecting rod and the slider device A third hydraulic cylinder 10 is connected between them, wherein the first hydraulic cylinder 8, the second hydraulic cylinder 9 and the third hydraulic cylinder 10 are all controlled by the controller, and the slider device includes a slider arranged in the chute at the upper end of the tool 3 , the upper end of the slider is respectively hinged with the second connecting rod and one end of the third hydraulic cylinder, and the third hydraulic cylinder controls the rotation of the slider relative to the second connecting rod.

During the working process, the position of the tool 3 can be moved by manually controlling the hydraulic cylinder. When encountering a hard object, which cannot be observed by humans at the first time, the buffer plate 6 will generate elastic deformation to generate a pressure signal, which will be transmitted through the shock-absorbing spring. 5 to absorb shock, so as to prevent equipment from being damaged. During this process, the pressure sensor module 7 on the buffer board receives signals, and the PLC control module processes the signals collected by the pressure sensor module 7 to control the hydraulic cylinder to perform telescopic movements to lift the entire Boom structure to avoid obstacles. The hedge trimmer tool is equipped with a pressure sensor and a buffer device, and the working tool will not be damaged due to failure to avoid obstacles when encountering obstacles. The buffer plate is made of polyethylene, which can effectively reduce the impact of obstacles on the tool. This hedge trimmer can not only achieve the purpose of a traditional hedge trimmer, but also automatically avoid obstacles and complete trimming operations efficiently and intelligently. The device has a simple structure and can effectively achieve the purpose of trimming green belts while protecting the cutting tool.

Claims (8)

1. a kind of GREEB HEDGE MACHINE automatic fault avoidnig device, it is characterised in that including the panoramic table (1) for installing jib structure (2), returns Turntable (1) is fixedly mounted on car body, and jib structure (2) one end is hinged on panoramic table (1) upper end, jib structure (2) other end Cutter (3) is installed with, cutter (3) side is fixed with base (4), buffer board (6) is connected with by screw rod on base (4), Pressure sensor (7) is installed on buffer board (6), damping spring (5) is cased with the screw rod between base (4) and buffer board (6), Also include the control module (8) for being controlled for panoramic table (1) motor and being connected with pressure sensor (7).

2. a kind of GREEB HEDGE MACHINE automatic fault avoidnig device according to claim 1, it is characterised in that panoramic table (1) is by driving Motor driven gear drives revolution.

3. a kind of GREEB HEDGE MACHINE automatic fault avoidnig device according to claim 1, it is characterised in that jib structure (2) being capable of phase Rotated in perpendicular for panoramic table (1).

4. a kind of GREEB HEDGE MACHINE automatic fault avoidnig device according to claim 1, it is characterised in that on base (4) riveting or It is bolted on cutter (3).

5. a kind of GREEB HEDGE MACHINE automatic fault avoidnig device according to claim 1, it is characterised in that its buffer board (6) is poly- second The buffer board of alkene material.

6. a kind of GREEB HEDGE MACHINE automatic fault avoidnig device according to claim 1, it is characterised in that jib structure (2) and revolution Vertical columns on platform (1) are articulated and connected.

7. a kind of GREEB HEDGE MACHINE automatic fault avoidnig device according to claim 6, it is characterised in that wherein jib structure (2) bag Two linkages that one end is articulated and connected with vertical columns are included, the two linkage other ends are connected by slide block device with cutter (3) Connect, wherein being connected with first hydraulic cylinder between first connecting rod and vertical columns on two linkages, first connecting rod and second connects Second hydraulic cylinder is connected between bar, the 3rd hydraulic cylinder is connected between second connecting rod and slide block device, wherein first hydraulic cylinder, Second hydraulic cylinder and the 3rd hydraulic cylinder are controlled by controller, and wherein slide block device includes being arranged at cutter (3) upper end Sliding block in chute, upper end of slide block is hinged with second connecting rod and the 3rd hydraulic cylinder one end respectively, controls to slide by the 3rd hydraulic cylinder Block is rotated relative to second connecting rod.

8. a kind of GREEB HEDGE MACHINE automatic fault avoidnig device according to claim 1, it is characterised in that panoramic table (1) is provided with matches somebody with somebody Pouring weight (11), control module (8) is PLC control modules.