CN112930767A

CN112930767A - Light agricultural earth drill

Info

Publication number: CN112930767A
Application number: CN202110216710.8A
Authority: CN
Inventors: 江居燕
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-26
Filing date: 2021-02-26
Publication date: 2021-06-11

Abstract

The invention relates to the field of agricultural machines and tools, and particularly discloses a light agricultural soil drilling machine which comprises a main machine and a drilling tool; the drilling tool comprises a drill rod and a drill bit, wherein the drill rod is provided with a spiral sheet, axial grooves are formed in the periphery of the spiral sheet, and teeth are arranged on the outer edge of the spiral sheet between the adjacent axial grooves; a top plate and a bottom plate are arranged on a rack of the host, a main shaft and at least three revolving frames are rotationally fixed between the top plate and the bottom plate, at least three roll shafts are arranged on each revolving frame, and the revolving frames are jointly in transmission connection with the main shaft; a shifting roller is sleeved outside the roller shaft, and a motor is arranged in the rack; after the drilling tool is combined with the main machine, when the rotary frames rotate synchronously, the shifting rollers on each rotary frame can circularly shift teeth to drive the drilling rod to rotate together. The light agricultural soil drilling machine has the advantages of scientific and reasonable structural design, high utilization rate of mechanical parts, small energy loss, convenient and quick use, high efficiency and labor saving in operation, large drilling depth range, strong practicability and wide application prospect in agricultural production.

Description

Light agricultural earth drill

Technical Field

The invention relates to an agricultural machine, in particular to a light soil drilling machine suitable for drilling soil in agricultural production.

Background

An agricultural soil drilling machine is a mechanical device commonly used in the agricultural production process, can efficiently and quickly drill holes in soil, and is widely applied to the operation processes of crop seedling planting, deep fertilization of forest trees, pile burying in greenhouse or fence construction and the like. The small-sized agricultural earth drilling machine with the structure has a plurality of defects in the practical application process, one of the defects is that before the drilling operation is started, the equipment needs to be manually erected on the ground, the heavy main machine needs to be lifted to a high position, the main machine needs to be manually supported in the drilling operation process, after the drilling operation is finished, the whole equipment needs to be lifted so that a drill rod can be moved out of a hole, the whole operation process is labor-consuming, and the small-sized agricultural earth drilling machine cannot be operated by a single person; secondly, the direction of the drill rod is usually controlled by an operator holding the main machine, the drilling direction is difficult to accurately control and cannot be kept constant, and the finally formed hole diameter and hole direction of the drill hole are not standard, so that adverse effects on subsequent operations are often caused; thirdly, the existing small-sized agricultural earth drill is not suitable for overlong drill rods based on the hand-held structural design characteristics, otherwise, the existing small-sized agricultural earth drill cannot be used by hand, so that the maximum drilling depth is small, the practicability is greatly reduced, and the utilization rate in agricultural production operation is greatly reduced.

Disclosure of Invention

The invention aims to provide a light agricultural soil drilling machine which is flexible and convenient to use, time-saving and labor-saving to operate, can accurately control the hole direction and has larger maximum drilling depth.

In order to achieve the technical purpose, the invention adopts the following technical scheme:

the utility model provides a light-duty agricultural earth boring machine, its comprises host computer and drilling tool two parts, its characterized in that:

the drilling tool comprises a drill bit and a plurality of drill rods which can be connected in a combined mode, the drill rods are arranged and can be connected end to end, and each drill rod is composed of a core rod and a spiral sheet fixed outside the core rod; a plurality of axial grooves which are distributed at equal angles and extend axially are formed in the periphery of the spiral piece, and teeth are arranged on the outer edge of the spiral piece between the adjacent axial grooves;

the main machine comprises a rack, a top plate and a bottom plate which are vertically distributed are arranged on the rack, the bottom plate has a ground clearance after the rack is flatly placed on the ground, the top plate and the bottom plate are respectively provided with a placing hole for a drilling tool to vertically pass through, a main shaft and at least three revolving frames which are rotationally and symmetrically distributed are rotationally and fixedly arranged between the top plate and the bottom plate, at least three roll shafts which are rotationally and symmetrically distributed by taking a rotating shaft thereof as a symmetric center are fixed on each revolving frame, central shafts of the roll shafts and the main shaft as well as the rotating shafts of the revolving frames extend along the vertical direction, and all the revolving frames are in transmission connection with the main shaft through a flexible part and can synchronously; the roll shaft is sleeved with a rotatable shifting roller, and the shifting roller can slide downwards along the roll shaft when in an initial position and can automatically reset upwards to the initial position under the driving of an elastic piece; a motor for driving the main shaft to rotate and a controller for regulating and controlling the working state of the motor are arranged in the frame;

after the drilling tool penetrates through the two placement holes in the vertical direction, the rotary frames are uniformly distributed on the periphery of the drill rod, at least one shifting roller in each rotary frame is located in the axial groove, the drill rod is limited by the shifting roller located in the axial groove and cannot move radially, and when the rotary frames rotate synchronously, the shifting rollers on each rotary frame can circularly shift teeth to drive the drill rod to rotate together.

Compared with the prior art, the light agricultural earth drill has the following technical effects:

in the drilling process, the main machine can be placed on the ground without manually lifting the main machine or manually supporting the main machine, so that the operation is more labor-saving, and the whole drilling process can be completed by a single person; after the host is placed and fixed, the drilling tool rotates and moves in the expected direction in the drilling process, the drilling direction can be kept constant, manual control is not needed, the hole direction is more accurate, and the hole shape is more standard; the host does not need to be lifted to the upper end of the drilling tool during drilling, so that the length of the drilling tool is more flexibly set during manufacturing, the length of the drilling tool can be increased according to actual needs, the drilling depth range is increased under the condition that the equipment is easy to carry and move, and the practicability of the light agricultural soil drilling machine is improved; based on the structural characteristics of the light agricultural soil drilling machine, the main machine can drive a plurality of drill rods connected end to drill into soil successively, so that deep holes can be drilled, and the application range of the light agricultural soil drilling machine in agricultural production is further expanded. In conclusion, the light agricultural soil drilling machine is scientific and reasonable in structural design, high in mechanical part utilization rate, small in energy loss, convenient and fast to use, efficient and labor-saving to operate, large in drilling depth range, high in practicability and wide in application prospect in agricultural production.

Drawings

FIG. 1 is a schematic view of a drilling tool according to an embodiment.

Fig. 2 is a second schematic view of the drilling tool according to the first embodiment.

Fig. 3 is a schematic structural diagram of a host according to an embodiment.

Fig. 4 is a second schematic structural diagram of the host according to the first embodiment.

Fig. 5 is a partially broken-away schematic structural diagram of the host according to the first embodiment.

FIG. 6 is a schematic structural diagram of a drilling tool and a main machine working together according to an embodiment.

Fig. 7 is a schematic structural diagram of a main machine driving a drilling tool to rotate according to an embodiment.

FIG. 8 is a schematic view illustrating the matching of the poking roller and the drill rod in the drilling operation process according to the first embodiment.

Fig. 9 is a schematic structural diagram of the lower end of the host according to the second embodiment.

Fig. 10 is a schematic view of the arrangement of the material poking ploughshare in the second embodiment.

Fig. 11 is a schematic view of the combination of the drill rod and the support rod in the third embodiment.

Fig. 12 is a schematic structural diagram of a host according to a fourth embodiment.

Fig. 13 is a schematic view showing the upward rotational movement of the drill rod by the arcuate arm in the fourth embodiment.

FIG. 14 is a schematic view of a matching structure of a poking roller and a drill rod in the fourth embodiment.

FIG. 15 is a schematic diagram of the fifth embodiment in which the elastic string provides downward pressure to the drilling tool.

In the figure, 1, a drill bit, 2, a drill rod, 201, a spiral sheet, 202, a core rod, 3, teeth, 4, a bolt, 5, an axial groove, 6, a locking bolt, 7, a jack, 8, a frame, 9, a bottom plate, 10, a pushing spring, 11, a connecting rod, 12, a shifting roller, 13, a revolving frame, 14, a top plate, 15, a placing hole, 16, a gradienter, 17, a handle, 18, a main shaft, 19, a guardrail, 20, a controller, 21, a bearing plate, 22, a power chamber, 23, a roller shaft, 24, a driven wheel, 25, a driving wheel, 26, a driven wheel, 27, a motor, 28, an output wheel, 29, a revolving shaft, 30, a shifting ploughshare, 31, a soil retaining plate, 32, a roller, 33, a bearing rod, 34, a radial hole, 35, a guide wheel, 36, an arc arm, 37, a pushing spring, 38, a hanging lug, 39, a hook, 40, a pressing cap, 41, a pulley, 42, a guide frame, 43 and an elastic rope.

Detailed Description

Example one

The light agricultural earth drilling machine disclosed by the embodiment consists of a main machine and a drilling tool which work in a matching way;

as shown in fig. 1 and 2, the drilling tool includes a drill bit 1 and a drill rod 2 which can be combined and connected, and the drill rods 2 are provided with a plurality of drill rods which can be connected end to end; the drill rod 2 consists of a core rod 202 and a spiral sheet 201, and the spiral sheet 201 is wound and fixed outside the core rod 202; a plurality of axial grooves 5 which are distributed at equal angles and extend along the axial direction of the drill rod 2 are formed in the periphery of the spiral piece 201, and teeth 3 are arranged on the outer edge of the spiral piece 201 between the adjacent axial grooves 5;

as shown in fig. 3, 4, 5, and 6, the host includes a frame 8, the frame 8 is provided with a top plate 14 and a bottom plate 9 which are distributed up and down, the frame 8 is horizontally placed on the ground, the bottom plate 9 has a gap from the ground, the top plate 14 and the bottom plate 9 are respectively provided with a placing hole 15, and a drilling tool can vertically pass through the top plate 14 and the bottom plate 9 through the two placing holes 15; a main shaft 18 and at least three revolving frames 13 are rotationally fixed between the top plate 14 and the bottom plate 9, the revolving frames 13 are rotationally and symmetrically distributed, at least three roll shafts 23 are fixed on each revolving frame 13, and the roll shafts 23 are rotationally and symmetrically distributed by taking the rotating shaft of the revolving frame 13 as a symmetric center; the central shafts of the roll shaft 23 and the main shaft 18 and the rotating shafts of all the revolving frames 13 extend along the vertical direction, and all the revolving frames 13 are connected with the main shaft 18 through a flexible part in a transmission way and can synchronously rotate; a sleeve-shaped poking roller 12 is sleeved outside the roller shaft 23, and the poking roller 12 can rotate around the roller shaft 23; when each poking roller 12 is at the initial position, the poking rollers are driven by external force to slide downwards along the roller shafts 23, and after the external force is removed, the poking rollers 12 are driven by an elastic piece to automatically reset upwards to the initial position; a motor 27 and a controller 20 are arranged in the frame 8, the motor 27 is in transmission connection with the main shaft 18 and is used for driving the main shaft 18 to rotate, and the controller 20 is used for regulating and controlling the working state of the motor 27;

referring to fig. 6, 7 and 8, after the drilling tool passes through two placement holes 15 from top to bottom along the vertical direction, the rotary frames 13 are uniformly distributed around the drill rod 2, at least one shifting roller 12 in each rotary frame 13 is positioned in the axial groove 5, the drill rod 2 is limited by the shifting roller 12 positioned in the axial groove 5 and cannot move radially, when the rotary frames 13 are driven to rotate synchronously by the operation of the motor 27, the shifting roller 12 on each rotary frame 13 circularly drives the teeth 3 to drive the drill rod 2 to rotate together, and therefore the drilling tool can drill downwards, namely drilling is achieved.

The use method and the working principle of the light agricultural earth drilling machine are as follows:

referring to fig. 6, 7 and 8, according to actual requirements, a host is stably placed on the ground, if an inclined hole is drilled, the host is placed in an inclined manner, a drill bit 1 and a drill rod 2 are assembled and connected and then penetrate through a placing hole 15, the drill bit 1 is inserted into soil, a motor 27 is started to operate, all the rotary frames 13 synchronously rotate, a poking roller 12 on each rotary frame 13 circularly enters an axial groove 5 and pokes teeth 3, so that the drill rod 2 is driven to rotate together with the whole drilling tool, the drilling tool continuously drills into the soil through a spiral sheet 201 in the rotating process, the motor 27 stops operating after the drilling hole reaches a desired depth, and the drilling tool is taken out of the hole, so that the whole drilling operation is completed;

referring to fig. 6, when the length of one drill rod 2 cannot meet the required drilling depth, a plurality of drill rods 2 can be connected to increase the drilling depth, specifically, when the upper end of the drill rod 2 is close to a top plate 14, the upper end of the drill rod 2 is connected with another drill rod 2, then, drilling is continued, and the connected drill rods 2 can continuously drill underground, so that the plurality of drill rods 2 can be sequentially drilled into the underground according to the requirement until the required drilling depth is reached, the position of a main machine does not need to be adjusted in the whole drilling process, and the operation is efficient, rapid, time-saving and labor-saving; based on the characteristic of large drilling depth range of the light agricultural soil drilling machine, the soil drilling machine is suitable for operations such as sampling of underground water and deep soil, construction of pile foundations of agricultural facilities and the like.

Referring to fig. 6 and 8, when the light agricultural earth boring machine drills a hole, the drill rod 2 is driven by the poking roller 12 to rotate, the drill rod 2 moves downwards during rotation, each poking roller 12 in contact with the tooth 3 moves downwards along the corresponding roll shaft 23 along the drill rod 2, the corresponding elastic part is forced to compress during downward movement of the poking roller 12, and after the poking roller 12 is separated from the tooth 3, the poking roller 12 is driven by the elastic part to return upwards to the initial position; based on the matching mode of the poking roller 12 and the drill rod 2, the energy loss in the transmission process of the poking roller 12 and the drill rod 2 is reduced, and the abrasion rate of the poking roller 12 and the drill rod 2 and other related parts is reduced.

This light-duty agricultural earth boring machine is at the drilling in-process, the host computer lay in ground can, need not artificially to raise it, need not to hold it manually, operate save trouble laborsaving, the completion can be operated to single in whole drilling process.

When utilizing this light-duty agricultural earth boring machine to drill, lay fixed back with the host computer, drilling tool will carry out rotary motion according to anticipated direction among the drilling process, and the direction of drilling can keep invariable and need not artificial the accuse, and the hole is to more accurate, and the hole shape is more standard.

When utilizing this light-duty agricultural earth boring machine to drill, owing to need not to go up host computer lifting to the upper end of drilling tool, consequently the length setting of drilling tool is more nimble when the preparation, can improve the length of drilling rod according to actual need, improves drilling depth range under the circumstances of guaranteeing that equipment easily carries and remove to improve this light-duty agricultural earth boring machine's practicality.

In conclusion, the light agricultural soil drilling machine is scientific and reasonable in structural design, high in mechanical part utilization rate, small in energy loss, convenient and fast to use, efficient and labor-saving to operate, large in drilling depth range, high in practicability and wide in application prospect in agricultural production.

Further, referring to fig. 1 and 2, in the light agricultural earth boring machine, the lower end of the drill rod 2 is provided with a jack 7, the upper ends of the drill rod 2 and the drill bit 1 are provided with a bolt 4, and the drill rod 2 is provided with a locking bolt 6 for locking the jack 7 and the bolt 4; based on the design, the disassembly and assembly between the drill rod 2 and between the drill rod 2 and the drill bit 1 are more convenient and faster, the stability of the combined connection of the components is ensured, and the separation of the connected components in the drilling operation process is avoided.

Further, referring to fig. 5 and 8, in the light agricultural earth boring machine, the elastic member is the ejector spring 10, the ejector spring 10 is sleeved on the roll shaft 23 and is located below the shifting roller 12, and the ejector spring 10 does not contact the drill rod 2 in the rotation process of the revolving frame 13; the elastic part is implemented by adopting the mode, the work is stable, and the cost is low.

Further, referring to fig. 5, in the light agricultural earth boring machine, the main shaft 18 is provided with a driven wheel 26, the output shaft of the motor 27 is provided with an output wheel 28, the driven wheel 26 and the output wheel 28 are in transmission connection by adopting a flexible member, and the flexible member is a toothed belt or a chain, so that the position layout of the main shaft 18 and the motor 27 is more flexible, and the structure of the transmission part is simpler and easier to maintain.

Further, referring to fig. 5 and 7, in the light agricultural earth boring machine, a driven wheel 24 is fixed on each of the upper and lower portions of each of the turning frames 13, two driving wheels 25 are fixed on the main shaft 18, the driven wheels 24 on the upper portions of all the turning frames 13 are in transmission connection with one driving wheel 25 through a flexible member, the driven wheels 24 on the lower portions of all the turning frames 13 are in transmission connection with the other driving wheel 25 through another flexible member, and the flexible member is a toothed belt, a triangular belt or a chain; therefore, the transmission stability of the turret 13 and the spindle 18 is improved, and the stress of the turret 13 tends to be more balanced.

Further, referring to fig. 3, 4 and 5, in the light agricultural earth boring machine, a power chamber 22 is provided at the middle lower part of the frame 8, the motor 27 is installed in the power chamber 22, a horizontal bearing plate 21 is provided at the upper end of the power chamber 22, and a guardrail 19 is installed above the bearing plate 21; in the drilling operation process, the stability of the main machine in the drilling operation can be improved by standing a person on the bearing plate 21 or placing a counterweight article on the bearing plate 21 and the like, the main machine is prevented from moving in the drilling operation process, and the guardrail 19 can prevent the person or the article above the bearing plate 21 from sliding or falling; in addition, the working stability of the main machine can be further improved by adding an anti-skid piece at the lower end of the frame 8.

Further, referring to fig. 7 and 8, in the light agricultural earth boring machine, when the shifting roller 12 shifts the teeth 3 to drive the drill rod 2 to rotate, each shifting roller 12 shifts at least three teeth 3 distributed up and down; therefore, the poking roller 12 can be ensured to be in full contact with the drill rod 2, the transmission stability between the poking roller and the drill rod is improved, and especially the phenomenon that the spiral piece 201 is deformed or damaged due to overlarge local stress is avoided.

Further, referring to fig. 3 and 6, in the light agricultural earth drilling machine, the frame 8 is provided with the level gauge 16, and the host can be horizontally placed more accurately and quickly by referring to the level gauge 16, so that the verticality of the drilled hole can be more accurately ensured; meanwhile, the level gauge 16 can adopt a model with an inclination angle measuring function in the prior art, so that the level gauge 16 can be adjusted to a specific angle more accurately and quickly when an inclined hole is drilled.

Further, referring to fig. 3 and 6, in the light agricultural earth boring machine, a plurality of connecting rods 11 are disposed between the bottom plate 9 and the top plate 14 to fixedly connect the bottom plate 9 and the top plate 14, so that the relative positions of the bottom plate 9 and the top plate 14 are maintained constant, and the structural stability of the whole device is improved.

Further, in the above-mentioned light agricultural earth boring machine, a storage battery (not shown) for supplying electric power to the motor 27 is installed in the housing 8, thereby making the use of the light agricultural earth boring machine more flexible.

Further, referring to fig. 3 and 6, in the light agricultural earth boring machine, a handle 17 is fixed to the upper end of the top plate 14, so that the light agricultural earth boring machine is more convenient to move or carry.

Example two

Referring to fig. 6, in the light agricultural earth boring machine disclosed in the foregoing embodiment, during the boring operation, the flight 201 transports the earth generated by boring to the ground, if the boring depth is shallow, the earth generated is less and generally does not affect the normal operation of the boring operation, if the boring depth is deep, the earth needs to be transferred to avoid the earth from gathering above the hole to affect the boring efficiency, and the operator can transfer the earth generated by boring through a tool such as a shovel to avoid the earth from gathering above the hole, but the operation is troublesome and time-consuming. Therefore, the embodiment is further improved on the basis of the structure of the light agricultural earth drilling machine disclosed in embodiment 1, and the specific structure is as follows:

referring to fig. 9 and 10, the lower end of the rotating frame 13 is supported by a rotating shaft 29 fixedly connected with the rotating frame, the rotating shaft 29 is rotatably fixed on the bottom plate 9, the lower end of the rotating shaft 29 extends to the lower side of the bottom plate 9, a material shifting ploughshare 30 is arranged at the lower end of the rotating shaft 29, and the material shifting ploughshare 30 can throw out soil around the rotating shaft 29 in the rotating process along with the rotating shaft 29.

Therefore, in the drilling operation process, the rotating shafts 29 and the rotating frame 13 rotate synchronously, the material shifting ploughshares 30 at the lower end of each rotating shaft 29 can throw out the soil around the corresponding rotating shaft 29 outwards by virtue of centrifugal force, and all the material shifting ploughshares 30 work together to disperse the soil generated in the drilling operation process around the hole, so that the drilling operation is stably and efficiently performed, the manual treatment of the soil is not needed, and the drilling operation is convenient, rapid, time-saving and labor-saving.

Still further, referring to fig. 9, the lower side of the frame 8 is provided with a retaining plate 31 for preventing the soil from gathering at a specific position, for example, the retaining plate 31 may be disposed at one end of the bottom plate 9 to prevent the material-pushing share 30 from throwing the soil to a position where an operator normally stands, so as to facilitate the operation of the apparatus by the operator.

EXAMPLE III

Referring to fig. 6, in the structure adopted by the light agricultural earth boring machine disclosed in the foregoing embodiment, the helical blade 201 is provided with the axial grooves 5 so that the teeth 3 are formed at the outer end portion thereof at intervals, and this special structure of the helical blade 201 can weaken the upward conveying capacity of the helical blade for earth, but because the soil in the farmland is poor in fluidity, in addition, parameters such as relative position relation, number, specific shape and size of the components such as the revolving frame 13, the poking roller 12, the axial grooves 5 and the teeth 3 can be reasonably adjusted during implementation to make up for the deficiency of the poor conveying capacity, so that the helical blade 201 can be ensured to convey the earth produced in the drilling process to the ground. Meanwhile, the present embodiment is further improved on the basis of the structure of the light agricultural earth boring machine disclosed in embodiment 1, and the conveying capacity of the spiral blade 201 to the earth during boring is improved from another aspect, and the adopted structure is as follows:

referring to fig. 11, the light agricultural earth boring machine is further provided with a support rod 33, both ends of the support rod 33 are respectively provided with a roller 32 which can be disassembled and assembled, and the drill rod 2 is provided with a plurality of radial holes 34 which are distributed at intervals up and down and through which the support rod 33 passes; when the support rod 33 passes through the radial hole 34 and the rollers 32 at the two ends of the support rod 33 contact with the top plate 14, the drill rod 2 is supported by the support rod 33 in the vertical direction and cannot move downwards, and the rollers 32 roll on the upper side of the top plate 14 during the rotation of the drill rod 2.

Referring to fig. 11, based on the above structure, during the drilling operation, when the drilling hole reaches the desired depth, the motor 27 is turned off to stop the rotation of the drill rod 2, the support rod 33 is inserted into the radial hole 34 of the drill rod 2 adjacent to the upper side of the top plate 14 and the roller 32 is installed, the motor 27 is turned on to rotate the drill rod 2 at a high speed, the drill rod 2 cannot move downwards continuously after the roller 32 contacts the top plate 14, and the spiral piece 201 is rotated at a high speed at a constant height, so that the soil in the hole can be conveyed to the ground.

Example four

After the light agricultural earth drilling machine disclosed by the embodiment is utilized to complete drilling, the drilling tool is required to be taken out of the drilled hole, when the drilling depth is shallow, the drilling tool is relatively easy to take out, and the manual operation can be carried out, but when the drilling depth is large, the upward movement resistance of the drilling tool is large, and the drilling tool is relatively heavy due to the fact that the drilling tools are assembled by the plurality of drill rods 2, the drilling tool is relatively hard to take out of the drilled hole manually, the operation is not convenient and fast enough, and for solving the technical problem, the embodiment has further improvement on the structural basis of the light agricultural earth drilling machine disclosed by the embodiment 1, and the specific structure is as follows:

referring to fig. 12 and 13, an arc arm 36 is installed on the top plate 14, the arc arm 36 has two stations according to different positions and can be switched between the two stations, and a guide wheel 35 is installed on the upper end surface of the arc arm 36; the arcuate arm 36 is not in contact with the drill rod 2 when in a working position and can be used as a handle; when the bow arm 36 is in another working position, the guide wheel 35 at the upper end of the bow arm 36 will extend into the underside of the helical surface of the flight 201 near the drill rod 2, and when the drill rod 2 is rotated in the opposite direction to drilling, the flight 201 cooperates with the guide wheel 35 to urge the drill rod 2 upwards.

Therefore, in the normal use process, the arched arm 36 can be used as a handle, which is convenient and smooth and does not form any obstacle to the movement of the drill rod 2; after drilling is finished, the position of the arched arm 36 is adjusted to enable the arched arm 36 to move towards the drill rod 2, the guide wheel 35 at the upper end of the arched arm 36 extends into the lower side of the spiral surface of the spiral piece 201, the rotation direction of the motor 27 is adjusted at the moment, the drill rod 2 rotates towards the opposite drilling direction, the spiral piece 201 is matched with the guide wheel 35 to enable the drill rod 2 to move upwards, and therefore the drilling tool can be taken out of a hole rapidly and laborsavingly.

Still further, referring to fig. 14, when the poking roller 12 is at the initial position, it can slide upwards along the roller shaft 23 and is driven by an elastic member to automatically return downwards to the initial position; the elastic member is a push-down spring 37, the push-down spring 37 is sleeved on the roller shaft 23 and positioned on the upper side of the poking roller 12, and the push-down spring 37 cannot be in contact with the drill rod 2 in the rotating process of the revolving frame 13.

Based on the installation mode of the poking roller 12 on the roll shaft 23, when the drilling tool is taken out of the hole by the arc-shaped arm 36, the drill rod 2 is driven by the poking roller 12 to rotate, the drill rod 2 moves upwards in the rotation process, each poking roller 12 in contact with the tooth 3 moves upwards along the corresponding roll shaft 23 along the drilling rod 2, the corresponding elastic part is forced to compress in the upward movement process of the poking roller 12, and after the poking roller 12 is separated from the tooth 3, the poking roller 12 is driven by the elastic part to reset downwards to the initial position; based on the matching mode of the poking roller 12 and the drill rod 2, the energy loss in the transmission process of the poking roller 12 and the drill rod 2 is reduced, and the abrasion rate of the poking roller 12 and the drill rod 2 and other related parts is reduced.

EXAMPLE five

Referring to fig. 6, in the light agricultural earth boring machine disclosed in the foregoing embodiment, since the drill bit 1 generally has a tip and a boring structure, and is influenced by the shape and characteristics of the flight 201 and the gravity of the drill, the drill can normally bore downward when rotating without providing additional downward pressure to the drill, but when the boring soil is hard, the drilling rate of the drill is slow, which reduces the boring efficiency to some extent, and for this reason, the present embodiment has a further improvement on the structure of the light agricultural earth boring machine disclosed in embodiment 1, and the specific structure is as follows:

referring to fig. 15, the light agricultural earth boring machine further comprises a pressing assembly, the pressing assembly is composed of a pressing cap 40, a guide frame 42 and an elastic rope 43, the pressing cap 40 can be fastened and fixed on the upper end of the drill rod 2, the guide frame 42 is arranged on the upper end of the pressing cap 40 and can rotate relative to the pressing cap 40, a plurality of pulleys 41 are arranged on the guide frame 42, the elastic rope 43 can move along the pulleys 41, and hooks 39 are arranged at two ends of the elastic rope 43; the upper end of the main machine is provided with two hangers 38 which are respectively positioned at the two sides of the placing hole 15; after the pressing cap 40 is buckled at the upper end of the drill rod 2 and the two hooks 39 of the elastic rope 43 are respectively connected with the two lugs 38, the elastic rope 43 is in a stretching state and can indirectly provide downward pressure for the drill rod 2.

Therefore, the pressing-down component can be arranged according to actual needs, and a certain pressing-down force is provided for the drill rod 2 by means of the elastic force of the elastic rope 43, so that the drilling speed is improved, and the drilling efficiency is improved.

Claims

1. The utility model provides a light-duty agricultural earth boring machine, its comprises host computer and drilling tool two parts, its characterized in that:

2. The light agricultural earth boring machine of claim 1, wherein: the drilling rod lower extreme be equipped with the jack, drilling rod and drill bit upper end between them then be equipped with the bolt, install on the drilling rod and be used for carrying out the locking bolt that locks with jack and bolt.

3. The light agricultural earth boring machine of claim 1, wherein: the elastic part is a pushing spring which is sleeved on the roller shaft and positioned below the shifting roller, and the pushing spring cannot be in contact with the drill rod in the rotating process of the revolving frame.

4. The light agricultural earth boring machine of claim 1, wherein: the main shaft is provided with a driven wheel, the output shaft of the motor is provided with an output wheel, the driven wheel and the output wheel are in transmission connection through a flexible part, and the flexible part is a toothed belt or a chain.

5. The light agricultural earth boring machine of claim 1, wherein: the upper part and the lower part of each rotary frame are respectively fixed with a driven wheel, the main shaft is fixed with two driving wheels which are distributed up and down, the driven wheels at the upper parts of all the rotary frames are jointly in transmission connection with one driving wheel through a flexible part, the driven wheels at the lower parts of all the rotary frames are jointly in transmission connection with the other driving wheel through another flexible part, and the flexible part is a toothed belt, a triangular belt or a chain.

6. The light agricultural earth boring machine of claim 1, wherein: the middle lower part of the frame is provided with a power chamber, the motor is arranged in the power chamber, the upper end of the power chamber is provided with a horizontally arranged bearing plate, and a guardrail is arranged above the bearing plate.

7. The light agricultural earth boring machine of claim 1, wherein: when the shifting roller shifting teeth drive the drill rod to rotate, each shifting roller shifts at least three teeth which are distributed up and down.

8. The light agricultural earth boring machine of claim 1, wherein: the rack is provided with a level gauge.

9. The light agricultural earth boring machine of claim 1, wherein: and a plurality of connecting rods for fixedly connecting the bottom plate and the top plate are arranged between the bottom plate and the top plate.

10. The light agricultural earth boring machine of claim 1, wherein: and a storage battery for providing electric energy for the motor is arranged in the frame.