CN218396037U - Walking type drilling and reaming vehicle - Google Patents

Abstract

The utility model provides a walking drilling reaming car, walking drilling reaming car includes automobile body, main shaft, integral key shaft, reamer, drill bit, rotating assembly, vertical moving assembly, truckle, sitting portion, two first handrails and first switch, and the main shaft is connected to the automobile body rotatably around the rotation central axis; the spline shaft is in transmission connection with the main shaft and is movably arranged below the main shaft along the direction parallel to the central rotating axis; the reamer is connected to the lower end of the spline shaft; the drill bit is connected to the reamer and extends out of the lower part of the reamer; the rotating assembly is in transmission connection with the main shaft; the vertical moving assembly is connected to the spline shaft; the caster is connected to the bottom of the vehicle body; the seating part is arranged to the top of the vehicle body; the two first handrails are oppositely arranged along the width direction of the vehicle body; the first switch is arranged on the first handrail and electrically connected to the vertical moving assembly. According to the utility model discloses can improve drilling efficiency, reduce intensity of labour and practice thrift the human cost.

Description

Walking type drilling and reaming vehicle

Technical Field

The utility model relates to a technical field of spot facing work equipment, more specifically relates to a walking drilling reaming car.

Background

At present, in many industries, a large number of wood boards and steel plates are installed and fixed, and in the operation process, the wood boards and the steel plates need to be punched and reamed. The traditional punching operation mode is that a manual hand-held electric hand drill is used for punching. In the operation process, a worker needs to bend down by 90 degrees and press down with force, and drilling and reaming are carried out in two procedures, namely, drilling and reaming are carried out firstly. Adopt traditional operation mode of punching, operating personnel is everyone and is required to carry out a large amount of drilling and reaming operations everyday, and intensity of labour is very big, and work efficiency is low.

It is therefore desirable to provide a walk behind drill hole reaming vehicle that at least partially addresses the above problems.

SUMMERY OF THE UTILITY MODEL

A series of concepts in a simplified form are introduced in the summary section, which will be described in further detail in the detailed description section. The inventive content does not imply any attempt to define the essential features and essential features of the claimed solution, nor is it implied to be intended to define the scope of the claimed solution.

For at least partly solving above-mentioned problem, the utility model provides a walking drilling reaming car, walking drilling reaming car includes:

a vehicle body;

a main shaft rotatably connected to a front portion of the vehicle body about a rotational center axis;

a spline shaft drivingly connected to the main shaft and movably disposed below the main shaft in a direction parallel to the central axis of rotation, the axis of the spline shaft coinciding with the central axis of rotation;

the reaming cutter is connected to the lower end of the spline shaft;

a drill bit connected to the reamer and protruding from a lower portion of the reamer;

the rotating assembly is arranged on the vehicle body and is in transmission connection with the main shaft, and the rotating assembly is used for driving the main shaft to rotate;

the vertical moving assembly is arranged on the vehicle body and connected to the spline shaft, and the vertical moving assembly is used for driving the spline shaft to move along a direction parallel to the central rotating axis;

a caster connected to a bottom of the vehicle body;

a seating part provided to a top of the vehicle body, the seating part for seating a person;

the two first armrests are connected to the front part of the vehicle body and are oppositely arranged along the width direction of the vehicle body, and the width direction of the vehicle body is perpendicular to the front-rear direction of the vehicle body; and

the first switch is arranged on the first armrest, the first switch is electrically connected to the vertical moving assembly, and the first switch is used for adjusting the starting and stopping states of the vertical moving assembly.

Optionally, the walking type drilling and reaming vehicle further comprises:

the second handrail is arranged at the rear part of the vehicle body and used for people to push or pull the vehicle body.

Optionally, the vehicle body comprises:

the chassis is positioned at the upper part of the vehicle body, and an accommodating space is formed inside the chassis;

a cover pivotably connected to a top of the cabinet about a pivot axis parallel to the width direction to open and close the accommodation space, the cover when closed being configured as the seating part.

Optionally, the walking type drilling and reaming vehicle further comprises:

the slide rail is arranged on the vehicle body along the vertical direction;

the inner ring of the first bearing is connected with the outer circumferential surface of the spline shaft; and

the sliding seat is movably connected to the sliding rail along the vertical direction and is also connected with the outer ring of the first bearing.

Optionally, the vertical movement assembly is configured as a cylinder, one of a cylinder and a piston rod of the cylinder is connected to the vehicle body, and the other of the cylinder and the piston rod of the cylinder is connected to the slide.

Optionally, the walking type drilling and reaming vehicle further comprises:

and the adjusting bolt is respectively connected to the sliding seat and the piston rod and is used for adjusting the ground clearance of the sliding seat.

Optionally, the rotating assembly comprises:

a motor;

a first pulley connected to an output shaft of the motor;

the second belt wheel is connected to the upper end of the main shaft, the second belt wheel is in transmission connection with the first belt wheel through a belt, and the diameter of the first belt wheel is larger than that of the second belt wheel.

Optionally, the walking type drilling and reaming vehicle further comprises:

the illuminating lamp is arranged at the front part of the vehicle body, and the illuminating direction of the illuminating lamp is consistent with the direction of the drilling tool; and

and the second switch is electrically connected to the illuminating lamp and the motor and used for adjusting the starting and stopping states of the illuminating lamp.

Optionally, the caster is configured as a castor.

According to the utility model discloses a walking drilling reaming car is rotatory through rotatory subassembly drive main shaft, drives the drill bit then and reams the sword rotation, removes through vertical removal subassembly drive integral key shaft, and ground is kept away from to the drill bit when the integral key shaft is located the primary importance, and the drill bit is close to ground when the integral key shaft is located the second place to the position of treating drilling is implemented and is drilled. Owing to have the portion of taking a seat, operating personnel can take on the portion of taking a seat, handheld first handrail, drilling reaming car when this walking is removed to two pedals ground, and the rethread manipulation lies in the first switch on first handrail, can make drill bit and reamer can reciprocate under the drive of vertical removal subassembly to realize drilling and reaming operation. By adopting the scheme, workers do not need to bend over greatly, the operation is convenient, and the labor intensity is reduced; drilling and reaming can be completed in one operation procedure, thereby being beneficial to improving the drilling efficiency; the operating personnel can ride shift position on drilling reaming car, helps reducing the occupation to the operating space to make drilling operation nimble more convenient, still be favorable to reducing the human cost simultaneously.

Drawings

The following drawings of the embodiments of the present invention are provided as a part of the present invention for understanding the present invention. There are shown in the drawings, embodiments and descriptions thereof, which are used to explain the principles of the invention. In the drawings there is shown in the drawings,

fig. 1 is a perspective view of a walk behind drilling and reaming vehicle according to a preferred embodiment of the present invention;

FIG. 2 is another perspective view of the walk behind drill hole enlarging cart of FIG. 1;

FIG. 3 is a front view of the walk behind, borehole reaming vehicle of FIG. 1 with the lid in an open position;

FIG. 4 is a top view of the walk behind borehole reaming vehicle shown in FIG. 3;

FIG. 5 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 3; and

fig. 6 is another front view of the walk behind, borehole reaming vehicle of fig. 1 with the lid in a closed position.

Description of the reference numerals:

100: vehicle body 101: cabinet

1011: power interface 1012: air source interface

102: the cover 103: first handrail

104: the second handrail 110: main shaft

111: the spline housing 112: spline shaft

113: a drill chuck 120: drilling tool

121: the reamer 122: drill bit

130: the rotating assembly 131: electric machine

132: first pulley 133: second belt wheel

134: belt 140: cylinder

141: a throttle valve 150: caster wheel

160: the fixing seat 161: sliding seat

162: the slide rail 163: first bearing

164: the second bearing 165: adjusting bolt

170: an illuminating lamp 180: first switch

190: second switch AX1: central axis of rotation

Detailed Description

In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. It will be apparent, however, to one skilled in the art, that embodiments of the present invention may be practiced without one or more of these specific details. In other instances, well-known features have not been described in order to avoid obscuring embodiments of the present invention.

In the following description, a detailed structure will be presented for a thorough understanding of embodiments of the invention. It is apparent that the implementation of the embodiments of the present invention is not limited to the specific details familiar to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention, and that the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. When the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. The terms "upper", "lower", "front", "rear", "left", "right" and the like as used herein are for illustrative purposes only and are not limiting.

Ordinal words such as "first" and "second" are referred to in this application as labels only, and do not have any other meanings, such as a particular order, etc. Also, for example, the term "first component" does not itself imply the presence of "second component", and the term "second component" does not itself imply the presence of "first component".

At present, in the field of container production, wood plates, steel plates and the like are generally required to be drilled for installation. Because the drilling workload is huge, a special device which has a light structure, is flexible to move and has a high drilling and reaming speed is urgently needed so as to reduce the labor intensity of workers and improve the working efficiency of drilling and reaming.

The utility model provides a walking drilling reaming car. As shown in fig. 1 to 6, the walking type drilling and reaming vehicle according to the present invention comprises a vehicle body 100: the spindle 110, the spline shaft 112, the reamer 121, the drill 122, the rotating assembly 130, the vertical moving assembly, the caster 150, the seating portion, the two first handrails 103, and the first switch 180.

Wherein main shaft 110 is rotatably connected to a front portion of vehicle body 100 about rotation center axis AX 1. The rotation central axis AX1 is an axis of the main shaft 110. The spline shaft 112 is drivingly connected to the main shaft 110, and the spline shaft 112 is movably disposed below the main shaft 110 in a direction parallel to the rotation center axis AX 1. In a specific implementation, a spline housing 111 can be installed at the lower end of the main shaft 110, and then the upper end of the spline shaft 112 is connected into the spline housing 111. The spline housing 111 herein may be understood as a sleeve with an internal spline that is slidably fitted with an external spline of the spline shaft 112 in a direction parallel to the rotational center axis AX 1. The axis of the spline shaft 112 may be coincident with the rotation central axis AX 1. The reamer 121 is connected to the lower end of the spline shaft 112. The drill bit 122 is connected to a lower portion of the reamer 121 and protrudes from the lower portion of the reamer 121. The drill bit 122 and the reamer 121 together constitute a drilling tool 120 for drilling and reaming. The rotating assembly 130 is disposed on the vehicle body 100 and is in transmission connection with the main shaft 110, and the rotating assembly 130 is used for driving the main shaft 110 to rotate. The vertical movement assembly is provided to the vehicle body 100. The vertical movement assembly is connected to the spline shaft 112. The vertical moving assembly is used to drive the spline shaft 112 to move in a direction parallel to the rotation central axis AX1, and to drive the spline shaft 112 to drive the drilling tool 120 to move up and down together. Under the condition that the rotating assembly 130 drives the main shaft 110 to rotate, the drilling tool 120 descends to realize drilling, and ascends to exit from the drilling. The caster 150 is connected to the bottom of the vehicle body 100 to perform walking of the vehicle body 100, which contributes to a reduction in labor intensity to some extent. A seating portion for seating a person is provided to the top of the vehicle body 100. For example, the operator may ride on the seating portion and then move the vehicle body 100 with the double pedals, thereby changing the punching position corresponding to the punching tool 120. Therefore, the occupation of the operating personnel on the operating space can be reduced, and the drilling and reaming vehicle can move more flexibly. Two first armrests 103 are attached to the front portion of the vehicle body 100. The two first armrests 103 are disposed to face each other in the width direction of the vehicle body 100. The two first armrests 103 can be conveniently held by an operator sitting on the vehicle body 100, and also help to keep the body balance of the operator when the first armrests 103 are held, and can make it more labor-saving for the operator to move the vehicle body 100. The width direction of the vehicle body 100 is perpendicular to the front-rear direction of the vehicle body 100. The first switch 180 is disposed on the first armrest 103. The first switch 180 is electrically connected to the vertical moving assembly. The first switch 180 is used to adjust the start-stop state of the vertical moving assembly. Since the first switch 180 is used to control the upward and downward movement of the drilling tool 120 by adjusting the on/off state of the vertical moving assembly, the first switch 180 is frequently operated during the drilling operation. And the utility model discloses a set up first switch 180 on first handrail 103, under the posture that operating personnel held first handrail 103, more conveniently control first switch 180, and then improve work efficiency and control experience.

According to the utility model discloses a walking drilling reaming car, it is rotatory through rotating assembly 130 drive main shaft 110, drive drill bit 122 and reamer 121 rotatory then, through vertical removal subassembly drive integral key shaft 112 removal, ground is kept away from to drill bit 122 when integral key shaft 112 is located the primary importance, and drill bit 122 is close to ground when integral key shaft 112 is located the second place to the position implementation drilling of treating drilling. Due to the fact that the seat part is arranged, an operator can sit on the seat part, the first handrail 103 is held by hands, the drilling and reaming trolley during walking is moved in a double-pedal mode, and the drill bit 122 and the reaming cutter 121 can move up and down under the driving of the vertical moving assembly by manipulating the first switch 180 located on the first handrail 103, so that drilling and reaming operations are achieved. By adopting the scheme, workers do not need to bend over greatly, the operation is convenient, and the labor intensity is reduced; drilling and reaming can be completed in one operation procedure, thereby being beneficial to improving the drilling efficiency; the operating personnel can ride shift position on drilling reaming car, helps reducing the occupation to the operating space to make drilling operation nimble more convenient, still be favorable to reducing the human cost simultaneously.

Referring to fig. 1, 2 and 6, the walk-behind borehole reaming vehicle may further include a second handrail 104. The second handle 104 is provided to a rear portion of the vehicle body 100 for a person to push or pull the vehicle body 100. The second handrail 104 can be used, but is not limited to, for the purpose of moving the vehicle body 100 a greater distance to reduce the labor intensity of drilling and reaming the vehicle when the operator is moving about.

See fig. 1-4, and fig. 6. For example, the vehicle body 100 may include a chassis 101 and a hood 102. The chassis 101 is located at an upper portion of the vehicle body 100, and an accommodating space is provided inside the chassis 101. The cover 102 is pivotably connected to the top of the cabinet 101 about a pivot axis parallel to the width direction to open and close the accommodation space. The cover 102 may function as a seating portion when closed.

Referring to fig. 3 to 6, the walking type drilling and reaming vehicle further includes a slide rail 162, a first bearing 163 and a slide carriage 161. The slide rail 162 is provided to the vehicle body 100 in the vertical direction. The first bearing 163 is disposed around the spline shaft 112, i.e. the inner ring of the first bearing 163 is connected to the outer circumference of the spline shaft 112. The slider 161 is movably connected to the slide rail 162 in a vertical direction. The slider 161 is also connected to the outer race of the first bearing 163. During the process that the sliding seat 161 moves in the vertical direction, the spline shaft 112 can be driven to move in the vertical direction, and meanwhile, the rotation motion transmitted to the spline shaft 112 by the spindle 110 is not affected. For example, the sliding seat 161 may include a bearing seat and a sliding block, the bearing seat is installed with a first bearing 163, and the spline shaft 112 is inserted into the first bearing 163. The sliding block is connected with the bearing seat through a bolt, the sliding block can be a standard component matched with the linear guide rail, and correspondingly, the sliding rail 162 can adopt the linear guide rail.

See fig. 1, 3, 5 and 6. Optionally, the walk behind drill hole reaming vehicle further comprises a fixed seat 160 and a second bearing 164. The fixing base 160 is connected to the casing 101 by bolts. The second bearing 164 is located in the fixed seat 160 for connecting with the main shaft 110 or the spline housing 111. The fixed seat 160 may be configured as another bearing seat in which the second bearing 164 is installed. In the illustrated embodiment, two second bearings 164 are provided, and both ends of the spline housing 111 are connected to inner rings of the two second bearings 164, respectively. The lower end of the main shaft 110 is connected into the spline housing 111. Thus, when the main shaft 110 rotates, both the main shaft 110 and the spline housing 111 are kept fixed relative to the housing 101, and the spline shaft 112 can move in the vertical direction relative to the spline housing 111 by the cylinder 140.

See fig. 1-4, and fig. 6. For example, the vertical moving assembly may be configured as a cylinder 140. One of the cylinder and the piston rod of the cylinder 140 is connected to the vehicle body 100, and the other of the cylinder and the piston rod of the cylinder 140 is connected to the slider 161. In the illustrated embodiment, the piston rod of the cylinder 140 may be connected to the front end plate of the cabinet 101, and the cylinder body of the cylinder 140 is connected to the slider 161 by bolts. When the air cylinder 140 works, the cylinder body of the air cylinder 140 moves in the vertical direction relative to the piston rod, and then the sliding base 161 is driven to move in the vertical direction, so as to drive the spline shaft 112 to move in the vertical direction.

Referring to fig. 3, 4 and 6, two air path connectors are generally connected to the cylinder 140, and any one of the two air path connectors may be used as an air inlet connector or an air outlet connector when different working purposes of the cylinder 140 are achieved. The gas circuit joint is connected to a gas source through a gas circuit pipe fitting via an electromagnetic valve. Under the condition that the air source is opened, the on-off state of the air path pipe fitting can be controlled through the electromagnetic valve, the air charging and discharging state of the air cylinder 140 is further adjusted, and finally the cylinder body of the air cylinder 140 is adjusted to move relative to the piston rod. Since the speed of the piston rod of the cylinder 140 moving relative to the cylinder body determines the feeding speed of the drilling tool 120, the feeding speed of the drilling tool 120 is often required to be changed according to different drilling requirements, so as to ensure that the hole machining can be performed reliably and safely. Therefore, the throttle valves 141 can be respectively installed at the two air path joints, and the speed of air charging and discharging can be adjusted through the throttle valves 141, so that the feeding speed can be adjusted to be matched with the drilling requirement. Furthermore, this may also help to extend the service life of the drilling tool 120.

Referring to fig. 4 and 6, the walk-behind hole reaming vehicle further includes an adjustment bolt 165. An adjusting bolt 165 is connected to the slider 161 and a cylinder or a piston rod of the air cylinder, respectively, and the adjusting bolt 165 is used to adjust the ground clearance of the slider 161. Wherein, adopt screw-thread fit's mode to be connected between adjusting bolt 165 and the slide 161 to through rotating adjusting bolt 165 along different directions, can realize adjusting the slide 161 and remove along vertical direction, and then change the distance between slide 161 and the ground. The stroke of the cylinder 140 is generally fixed, and the drilling depth and the reaming depth can be adjusted by adjusting the ground clearance of the sliding base 161 under the same stroke of the cylinder 140.

See fig. 3-6. In the illustrated embodiment, the rotating assembly 130 may be a belt including a motor 131, a first pulley 132, and a second pulley 133. The first pulley 132 is connected to an output shaft of the motor 131. The second pulley 133 is connected to the upper end of the main shaft 110. The second belt wheel 133 and the first belt wheel 132 are in transmission connection through a belt 134, and the diameter of the first belt wheel 132 is larger than that of the second belt wheel 133. When the motor 131 is activated, the motor 131 transmits a rotational driving force to the second pulley 133 via the first pulley 132 and the belt 134, thereby driving the main shaft 110 to rotate. Since the rotation speed output by the motor 131 may not match the rotation speed required by the main shaft 110, the speed ratio can be changed by matching the first pulley 132 and the second pulley 133, so as to achieve the purpose of adjusting the rotation speed of the main shaft 110. In the present embodiment, the rotation speed of the main shaft 110 is made greater than the rotation speed output by the motor 131 by defining the diameter of the first pulley 132 to be greater than the diameter of the second pulley 133. Wherein, the motor 131 can adopt an energy-saving motor 131 to save electric power and energy. It is understood that, as a modification of the rotating assembly 130, the rotating assembly 130 may also adopt a gear transmission assembly to realize power transmission between the motor 131 and the main shaft 110.

See fig. 1, 2 and 4. In addition, the walk type drilling and reaming vehicle can further comprise an illuminating lamp 170 and a second switch 190. The illumination lamp 170 is provided at the front of the vehicle body 100. The illumination direction of the illumination lamp 170 is kept in correspondence with the orientation of the drilling tool 120. The illuminating lamp 170 is used for illuminating the drilling position during drilling, so that the light of the drilling position is improved, the positioning precision of drilling is improved, and meanwhile, the state of the drilling tool 120 is conveniently observed. The second switch 190 is electrically connected to the illumination lamp 170 and the motor 131, and is used for adjusting the on/off states of the illumination lamp 170 and the motor 131. It is understood that the second switch 190 can include, but is not limited to, two independent sub-switches, and the two sub-switches are respectively used for controlling the on/off of the illumination lamp 170 and the motor 131. Of course, a second switch 190 may be used to control the lamp 170 and the motor 131 synchronously.

In order to more conveniently and flexibly change the moving direction of the walk-behind drilling and reaming vehicle, the caster 150 may be configured as a universal caster. The casters may be configured with a brake structure for locking casters 150 when the walk-behind drill-hole enlarging cart is not in use, to prevent the drill-hole enlarging cart from moving due to accidental bumping. The accommodating space in the case 101 may be used to accommodate the dc power regulator, the solenoid valve, the motor 131, and the like. The cover 102 is hinged with the box body, so that the opening and closing are convenient, and the maintenance is facilitated.

See fig. 1-6. In addition, a drill chuck 113 is generally mounted on the lower end of the spline shaft 112. The drill chuck 113 may be used to clamp the drilling tool 120. An air source interface 1012 and a power source interface 1011 may be disposed on the rear end plate of the chassis 101, wherein the air source interface 1012 is used for detachably connecting with a pipeline of an air source, and the power source interface 1011 is used for detachably connecting with a power line. The detachable mode can be implemented by referring to the existing plugging mode.

See fig. 1-6. In general, the method of using the walk behind drill hole reaming vehicle may include, but is not limited to, the steps of:

s1, adjusting a second switch 190 to be in an on state to supply power to electric devices and components on the drilling vehicle, wherein the motor 131 and the illuminating lamp 170 can be in the on state at the moment, and the main shaft 110 rotates;

s2, an operator sitting on the cover 102 of the vehicle body 100 respectively holds the two first handrails 103 with two hands and moves the vehicle body 100 with double pedals, so that the drilling tool 120 corresponds to the position to be drilled;

s3, by operating the first switch 180 on the first handrail 103, the cylinder body of the air cylinder 140 extends relative to the piston rod, so that the drilling tool 120 descends to drill a hole;

s4, after the primary drilling is finished, the cylinder body of the air cylinder 140 retracts relative to the piston rod by operating the first switch 180 of the first handrail 103 again, and then the drilling tool 120 moves upwards and exits from the drilling;

s5, repeating the operations from S2 to S4, and sequentially drilling other positions to be drilled;

s6, after drilling is finished at all positions to be drilled, the second switch 190 is closed, the operator gets down from the machine cover 102, holds the second handrail 104 to push or pull the walking type drilling and reaming vehicle, and can move the walking type drilling and reaming vehicle to a specified position.

According to the utility model discloses a walking drilling reaming car, the height of its cover 102 can be about 500mm, and the width of automobile body 100 can be about 300mm, accords with ergonomic to make things convenient for the people to take and remove automobile body 100 through pedaling ground more nimble. Four casters 150 at the bottom of the vehicle body 100 can adopt 75mm universal casters, so that the movement is more flexible. The operator can automatically complete drilling and reaming by slightly touching the second switch 190 with fingers, so that the labor intensity of the operator is greatly reduced, and the work efficiency can be greatly improved. The cover 102 is hinged with the box body, so that the opening and closing are convenient, and the maintenance is facilitated.

Unless defined otherwise, technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. Terms such as "disposed" and the like, as used herein, may refer to one element being directly attached to another element or one element being attached to another element through intervening elements. Features described herein in one embodiment may be applied to another embodiment, either alone or in combination with other features, unless the feature is not applicable or otherwise stated in the other embodiment.

The present invention has been described in terms of the above embodiments, but it is to be understood that the above embodiments are for purposes of illustration and description only and are not intended to limit the invention to the described embodiments. It will be appreciated by those skilled in the art that many more modifications and variations are possible in light of the above teaching and are intended to be included within the scope of the invention.

Claims (9)

1. The utility model provides a walking drilling reaming car which characterized in that, walking drilling reaming car includes:

a vehicle body;

a main shaft rotatably connected to a front portion of the vehicle body about a rotational center axis;

a spline shaft drivingly connected to the main shaft and movably disposed below the main shaft in a direction parallel to the central axis of rotation, the axis of the spline shaft coinciding with the central axis of rotation;

a reamer connected to the lower end of the spline shaft;

a drill bit connected to the reamer and protruding from a lower portion of the reamer;

the rotating assembly is arranged on the vehicle body and is in transmission connection with the main shaft, and the rotating assembly is used for driving the main shaft to rotate;

the vertical moving assembly is arranged on the vehicle body and connected to the spline shaft, and the vertical moving assembly is used for driving the spline shaft to move along a direction parallel to the central rotating axis;

a caster connected to a bottom of the vehicle body;

a seating part provided to a top of the vehicle body, the seating part for seating a person;

the two first armrests are connected to the front part of the vehicle body and are oppositely arranged along the width direction of the vehicle body, and the width direction of the vehicle body is perpendicular to the front-rear direction of the vehicle body; and

the first switch is arranged on the first armrest, the first switch is electrically connected to the vertical moving assembly, and the first switch is used for adjusting the starting and stopping states of the vertical moving assembly.

2. The walk behind borehole reaming vehicle of claim 1, further comprising:

and the second handrail is arranged at the rear part of the vehicle body and used for people to push or pull the vehicle body.

3. The walk behind, borehole reaming vehicle of claim 1 wherein the vehicle body comprises:

the chassis is positioned at the upper part of the vehicle body, and an accommodating space is formed inside the chassis;

a cover pivotably connected to a top of the cabinet about a pivot axis parallel to the width direction to open and close the accommodation space, the cover when closed being configured as the seating part.

4. The walk behind borehole reaming vehicle of claim 1, further comprising:

the sliding rail is arranged on the vehicle body along the vertical direction;

the inner ring of the first bearing is connected with the outer circumferential surface of the spline shaft; and

the sliding seat is movably connected to the sliding rail along the vertical direction and is also connected with the outer ring of the first bearing.

5. The walk behind, borehole reaming vehicle of claim 4 wherein the vertical movement assembly is configured as a cylinder, one of a cylinder and a piston rod of the cylinder being connected to the vehicle body, the other of the cylinder and the piston rod of the cylinder being connected to the slide.

6. The walk behind borehole reaming vehicle of claim 5, further comprising:

and the adjusting bolt is respectively connected to the sliding seat and the piston rod and is used for adjusting the ground clearance of the sliding seat.

7. The walk behind, borehole reaming vehicle of claim 1 wherein the rotation assembly comprises:

a motor;

a first pulley connected to an output shaft of the motor;

the second belt wheel is connected to the upper end of the main shaft, the second belt wheel is in transmission connection with the first belt wheel through a belt, and the diameter of the first belt wheel is larger than that of the second belt wheel.

8. The walk behind borehole reaming vehicle of claim 7, further comprising:

the illuminating lamp is arranged at the front part of the vehicle body, and the illuminating direction of the illuminating lamp is consistent with the direction of the drilling tool; and

and the second switch is electrically connected to the illuminating lamp and the motor and used for adjusting the starting and stopping states of the illuminating lamp.

9. The walk behind, borehole reaming vehicle of claim 1 wherein the casters are casters.

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