CN212344796U - Spiral hob type tree digging device mounted on four-bar mechanism and capable of cutting around trunk - Google Patents

Abstract

The utility model provides a adorn in four bar linkage can encircle spiral hob formula of cutting around the trunk and dig tree device, it is main including the shallow, dig tree cutter and four bar linkage, dig tree cutter and adopt power drive's spiral hob, install on the shallow through four bar linkage, four bar linkage can swing in the vertical plane, a depth of cut for adjusting to dig tree cutter, the shallow embraces the trunk through the tree clamp ring, and can be rotatory around the trunk, it accomplishes the cutting motion around the trunk to drive to dig tree cutter, through the luffing motion of digging tree cutter and the rotary motion around the trunk, just can accomplish the cutting of the most of root earth ball, remaining subtotal can also support the trunk and the earth ball is upright not fallen, finally, as long as adopt simple cutter to assist to excavate, just can accomplish all operations of digging the tree. The beneficial effects of the technology are: the tree digging cutter is driven by power, so that the labor intensity is low, the tree root soil balls are regular in shape, and the tree digging cutter has the characteristics of simple structure, light weight, light operation, high efficiency and good operation safety.

Description

Spiral hob type tree digging device mounted on four-bar mechanism and capable of cutting around trunk

Technical Field

The utility model belongs to the technical field of forestry machinery, concretely relates to dig tree device.

Background

The tree transplanting machine has two existing tree digging methods, one is a large tree digging machine, which has large volume, heavy weight and high price, is inconvenient to use and high in cost although having higher efficiency, and is often limited by an operation field; the other method is to adopt manual tree digging, the adopted tools are of two types, one type is a simple digging tool without power, the digging tool completely depends on physical power, the labor intensity is very high, the efficiency is very low, the other type is a digging machine with small power, the whole tree digging process needs to be held by the physical power, the physical power consumption is large, the efficiency is not very high, soil balls of the tree root dug are irregular, the survival rate of tree transplanting is influenced, and certain danger exists. Along with the continuous improvement of living conditions of people, the labor cost is higher and higher at present, and the tree digging device which is simple in structure, light in weight, convenient to use, regular in tree root soil ball digging, high in efficiency and safe in operation is invented, and is particularly important.

Disclosure of Invention

The utility model provides a adorn in four-bar linkage can encircle the spiral hobbing cutter formula of cutting around the trunk and dig tree device, the technical scheme who adopts is: mainly including the shallow, four bar linkage and dig the tree cutter, the shallow includes the frame, wheel and tree clamp, it includes the power supply to dig the tree cutter, transmission and spiral hob, it installs on the frame through four bar linkage to dig the tree cutter, the transmission who digs the tree cutter includes the reduction gear, transmission shaft and transmission shaft overcoat, the output shaft of the input shaft power supply of reduction gear, the output shaft connection transmission shaft of reduction gear, the transmission shaft overcoat is fixed on the casing of reduction gear, the transmission shaft overcoat is the pipe of zigzag form, the inside is the transmission shaft, the output shaft of reduction gear is connected to the input of transmission shaft, spiral hob is connected to the output of transmission shaft, spiral hob who digs the tree cutter passes through the bearing suit on the transmission shaft overcoat, terminal and transmission shaft are fixed. Four sides of the four-bar mechanism are arranged in a vertical plane, adjacent sides are connected through a shaft pin and can rotate mutually in the plane, one side of the four-bar mechanism is fixed on a frame of the cart, the opposite side of the four-bar mechanism is replaced by a transmission shaft sleeve, and the other two sides realize the adjustment of the height and the angle of the tree digging cutter through the swinging around the fixed side. The wheels of the cart are universal wheels and are fixed at the bottom of the cart, so that the cart can rotate around the trunk conveniently. The tree clamp comprises fixed semicircle ring and activity semicircle ring, and the both ends of fixed semicircle ring are fixed with the frame, and the one end of activity semicircle ring is passed through the pivot and is connected with fixed semicircle ring, and the other end passes through the bolt to be connected with fixed semicircle ring, and the trunk can be embraced to two semicircle rings, and the shallow of being convenient for rotates around the trunk.

The beneficial effects of the invention are: the spiral hob driven by power swings in a vertical plane along with the four-bar mechanism and rotates around the tree trunk in a horizontal plane along with the cart, so that the cutter can cut most of the soil balls on the tree roots, the remaining small part can support the tree trunk and the soil balls not to turn on the side, and all digging can be completed by assisting a simple digging tool. The tree digging cutter is driven by power, the labor intensity is low, the tree root soil ball shape is regular, and the tree digging cutter has the characteristics of simple structure, light weight, light operation, high efficiency and good operation safety.

Drawings

Fig. 1 is a schematic side view of the structure of the present invention.

Fig. 2 is a schematic top view of the structure of the present invention.

FIG. 3 is a cross-sectional view of the spiral hob.

Fig. 4 is a side view of the utility model after the cutting tool is deeply inserted into the ground.

In the figure: 1. the device comprises a cart, 2, a spiral hob, 3, a transmission shaft outer sleeve, 4, a power source, 5, a four-bar mechanism, 6, wheels, 7, a tree clamp, 8, a transmission shaft, 9, a speed reducer, 10, a fixed disc, 11 and a bearing.

Detailed Description

As shown in the attached drawings, the embodiment of the spiral hob type tree digging device which is arranged on a four-bar mechanism and can cut around a trunk mainly comprises a cart, a tree digging cutter and the four-bar mechanism 5. The cart comprises a cart frame 1, wheels 6 and a tree clamp 7, wherein the cart frame is formed by welding transverse metal rods and longitudinal metal rods, the two longitudinal metal rods are bent into a Z shape, a plurality of transverse rods are welded in the middle to form a firm frame structure, two universal wheels are fixed below the cart frame and are like rollers below a draw-bar box to form a small cart, and the small cart is very convenient to move. The tree clamp comprises a fixed semi-ring and a movable semi-ring, the semi-rings are formed by bending metal strips into semi-circles, certain elasticity exists in the radius direction, the two ends of the fixed semi-rings are fixed at the front end of a frame, one end of the movable semi-ring is connected with the fixed semi-ring through a shaft pin, the other end of the movable semi-ring is connected with the fixed semi-ring through a bolt, and a hole formed in the bolt in a sleeved mode by the movable semi-ring is a long circular hole.

The tree digging cutter mainly comprises a spiral hob 2, a power source 4 and a transmission device, wherein the power source adopts a motor, the transmission device mainly comprises a speed reducer 9, a transmission shaft 8, a transmission shaft jacket 3 and a bearing 11, an input shaft of the speed reducer is connected with an output shaft of the power source, the output shaft of the speed reducer is connected with the transmission shaft, the transmission shaft jacket is fixed on a shell of the speed reducer, and the transmission shaft jacket is a broken-line-shaped circular pipe. The transmission shaft is arranged in the transmission shaft outer sleeve, the input end of the transmission shaft is connected with the output shaft of the speed reducer, and the output end of the transmission shaft is connected with the spiral hob. The spiral hob adopts a cutter disclosed in patent No. CN201821866997.9, can cut and discharge soil, is arranged on the outer sleeve of the transmission shaft through a bearing 11, the tail end of the spiral hob is fixed with the transmission shaft, and the spiral hob is driven to rotate through the transmission shaft. In order to normally drive in the broken-line-shaped transmission shaft jacket, an elastic flexible shaft is adopted.

The four-bar mechanism is composed of four sides, in order to ensure the strength, the four sides of the four-bar mechanism are made of metal bars, the four sides of the four-bar mechanism are all arranged in a vertical plane, adjacent sides are connected through shaft pins and can rotate mutually in the plane, one side of the four-bar mechanism is fixed on a frame of the cart, the opposite side of the four-bar mechanism is replaced by a jacket of a transmission shaft, the other two sides realize the adjustment of the height and the angle of the tree digging cutter through swinging around the fixed side, and the four-bar mechanism is used as a device for fixing and adjusting the tree digging cutter, so that the tree root soil balls can be more regular. A fixed disk 10 is arranged on a shaft pin on the fixed edge of the four-bar mechanism, the fixed disk and the shaft pin are connected into a whole and cannot rotate mutually, a plurality of small holes which are circumferentially arranged are arranged at a certain radius position on the fixed disk, small holes with the same aperture are formed at the same radius position on adjacent swing arms, when a certain small hole on the fixed disk is aligned with the small hole on the swing arm, a fixed pin can be inserted, so that the swing arm cannot swing, the state of the four-bar mechanism is fixed, and the height position of the tree digging cutter can be kept.

The use method of the utility model is introduced as follows: opening the movable half ring of the tree clamp, adjusting the position of the cart, encircling the tree clamp on the trunk, enabling the cart to only rotate around the trunk, starting a motor switch, adjusting the four-bar mechanism to enable the tree digging cutter to cut into the ground for a certain depth, selecting a proper depth according to the power of the motor and the resistance of the tree digging, ensuring that the cutter rotates at a certain rotating speed, inserting a fixed pin into a fixed disc after determining the depth, enabling the four-bar mechanism to be fixed, enabling the cart to rotate around the trunk for a circle, then taking down the fixed pin, adjusting the state of the four-bar mechanism to enable the tree digging cutter to go deep into the ground again, then inserting the fixed pin again, and enabling the cart to move around the trunk for a circle, repeating the steps until the tree digging cutter can not go deep into the tree again. The method can complete most of cutting amount of the soil balls on the tree roots, the rest small parts can support the tree trunk and the soil balls to stand upright, and finally, all tree digging operations can be completed as long as simple cutter-assisted digging is adopted.

Claims (6)

1. The utility model provides an adorn in four-bar linkage can encircle spiral hob formula of cutting around trunk and dig tree device which characterized in that: the tree digging device mainly comprises a cart, a four-bar mechanism and a tree digging cutter, wherein the cart comprises a frame, wheels and a tree clamp, the tree digging cutter comprises a power source, a transmission device and a spiral hob, and the tree digging cutter is installed on the frame through the four-bar mechanism.

2. The spiral hob tree digging apparatus mounted on a four-bar linkage for cutting around a trunk of a tree according to claim 1, wherein: dig transmission of tree cutter includes reduction gear, transmission shaft and transmission shaft overcoat, and the input shaft of reduction gear connects the output shaft of power supply, and the output shaft of reduction gear connects the transmission shaft, and the transmission shaft overcoat is fixed on the casing of reduction gear, and the transmission shaft overcoat is the pipe of broken line form, and the inside is the transmission shaft, and the output shaft of reduction gear is connected to the input of transmission shaft, and spiral hob is connected to the output of transmission shaft.

3. The spiral hob tree digging apparatus mounted on a four-bar linkage for cutting around a trunk of a tree according to claim 1, wherein: the spiral hob of the tree digging cutter is sleeved on the outer sleeve of the transmission shaft through a bearing, the tail end of the spiral hob is fixed with the transmission shaft, and the spiral hob is driven to rotate by the transmission shaft.

4. The spiral hob tree digging apparatus mounted on a four-bar linkage for cutting around a trunk of a tree according to claim 1, wherein: four sides of the four-bar mechanism are arranged in a vertical plane, adjacent sides are connected through shaft pins and can rotate in the plane, one side of the four-bar mechanism is fixed on a frame of the cart, the opposite side of the four-bar mechanism is replaced by a transmission shaft sleeve, and the other two sides of the four-bar mechanism swing around the fixed side to realize the adjustment of the height and the angle of the tree digging cutter.

5. The spiral hob tree digging apparatus mounted on a four-bar linkage for cutting around a trunk of a tree according to claim 1, wherein: the wheels are universal wheels and are fixed at the bottom of the cart, so that the cart can rotate around the trunk conveniently.

6. The spiral hob tree digging apparatus mounted on a four-bar linkage for cutting around a trunk of a tree according to claim 1, wherein: the tree clamp comprises fixed semicircle ring and activity semicircle ring, and the both ends of fixed semicircle ring are fixed with the frame, and the one end of activity semicircle ring is passed through the pivot and is connected with fixed semicircle ring, and the other end passes through the bolt to be connected with fixed semicircle ring, and the trunk can be embraced to two semicircle rings, and the shallow of being convenient for rotates around the trunk.

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