Automatic walking road cutting machine

Abstract

The present invention relates to the technical field of ground cutting machines, and specifically to an automatic walking road cutting machine, including a frame, a lifting mechanism, a walking wheel lifting control mechanism, a front pilot wheel control mechanism, a rear pilot wheel control mechanism, a cutting mechanism, a walking control mechanism and a power device, wherein the lifting mechanism, the walking wheel lifting control mechanism, the front pilot wheel control mechanism, the rear pilot wheel control mechanism, the cutting mechanism, the walking control mechanism and the power device are all installed on the frame, the walking wheel lifting control mechanism includes a driving wheel, the driving wheel is located below the middle of the chassis, and the walking wheel lifting control mechanism is used to adjust the height of the driving wheel; the walking control mechanism is used to control the driving wheel to rotate; the power device includes a power machine and a transmission chain, and the power machine provides power to the cutting mechanism and the walking control mechanism through the transmission chain. The present invention can stably walk in a straight line when cutting the ground, does not require manual pushing or hand support, and is easy to operate.

Description

Technical Field

[0001] The invention relates to the technical field of ground cutting machines, and in particular to an automatic walking road cutting machine. Background Art

[0002] Ground cutting machines are widely used equipment in road and bridge construction, and are often used for construction operations such as cutting, trimming, and cutting off concrete and asphalt pavements.

[0003] The ground cutting machine is used for cutting the ground, and is mostly used for cutting cement ground. The ground cutting machine in the prior art is cumbersome to operate, and the linearity of the walking route during cutting is poor. In addition, the stability performance during walking is also poor. When it is necessary to cut the ground, the cutting wheel set at the front end needs to move up and down, that is, when cutting, the cutting wheel needs to go deep into the ground, and when cutting is not needed, the cutting wheel needs to be lifted up.

[0004] In addition, the drive of the walking wheel in the ground cutting machine requires a special mechanism. The drive used in the existing technology is mostly manually pushed. The manual push operation causes the cutting machine to deviate due to the different forces on the left and right sides. The deviation will not only increase the power, but also easily cause damage to the cutting blade. In addition, an automatic walking device is required. Since the engine needs to drive the front roller to rotate for cutting, the driving wheel can be powered by a transmission belt. It is necessary to develop a ground cutting machine with good stability, good linearity during cutting and walking, and easy operation. Summary of the invention

[0005] In view of this, the present invention provides an automatic walking road cutting machine, which can stably walk in a straight line when cutting the ground, does not require manual pushing or hand support, and is easy to operate.

[0006] In order to achieve the above object, the present invention is achieved through the following technical solutions:

[0007] The present invention provides an automatic walking road cutting machine, comprising: a frame, a lifting mechanism, a walking wheel lifting control mechanism, a front pilot wheel control mechanism, a rear pilot wheel control mechanism, a cutting mechanism, a walking control mechanism and a power device, wherein the lifting mechanism, the walking wheel lifting control mechanism, the front pilot wheel control mechanism, the rear pilot wheel control mechanism, the cutting mechanism, the walking control mechanism and the power device are all installed on the frame, wherein:

[0008] The frame includes a chassis, and rear driven wheels are respectively arranged on both sides of the rear end of the chassis;

[0009] The lifting mechanism is located at the front of the chassis and includes two front driven wheels. The two front driven wheels are located below the two sides of the front of the chassis. The lifting mechanism is used to adjust the height of the two front driven wheels.

[0010] The walking wheel lifting control mechanism includes a driving wheel, the driving wheel is located below the middle of the chassis, and the walking wheel lifting control mechanism is used to adjust the height of the driving wheel;

[0011] The front pilot wheel control mechanism comprises a front pilot wheel, and the front pilot wheel is located below the front part of the chassis;

[0012] The rear pilot wheel control mechanism comprises a rear pilot wheel, and the rear pilot wheel is located below the rear part of the chassis;

[0013] The cutting mechanism is arranged at the front end of the chassis, and comprises a circular saw cutting blade, wherein the circular saw cutting blade, the front pilot wheel and the rear pilot wheel are in a collinear line;

[0014] The travel control mechanism is used to control the driving wheel to rotate;

[0015] The power device comprises a power machine and a transmission chain, and the power machine provides power to the cutting mechanism and the travel control mechanism through the transmission chain.

[0016] Preferably, the transmission chain comprises a main pulley, a secondary pulley and a conveyor belt, the main pulley, the secondary pulley and the conveyor belt are all arranged on one side of the chassis, and the secondary pulley is linked to the circular saw cutting blade.

[0017] More preferably, the frame further comprises a front frame, a rear frame, a first cross beam and a second cross beam, the front frame and the rear frame are respectively fixedly arranged in parallel above the front end and the rear end of the chassis, the front frame and the rear frame are both perpendicular to the chassis, and the first cross beam and the second cross beam are fixedly connected in parallel to the upper end between the front frame and the rear frame.

[0018] In the above-mentioned automatic walking pavement cutting machine, as a preferred embodiment, the walking control mechanism includes a connecting plate mechanism and an electromagnetic telescopic lock, and the connecting plate mechanism and the electromagnetic telescopic lock are installed on the left and right sides of the second beam. The electromagnetic telescopic lock is provided with a telescopic head, and the telescopic head crosses the second beam and exceeds the second beam by a certain distance. The telescopic head limits the connecting plate mechanism, and one end of the connecting plate mechanism is hinged on the second beam, and the other end is connected to the walking wheel lifting control mechanism.

[0019] Preferably, the connecting plate mechanism includes a first connecting plate, a second connecting plate, a third connecting plate and a fourth connecting plate, the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate are hinged to each other, the front end of the first connecting plate is hinged to the second cross beam, and the end of the fourth connecting plate contacts and connects to the walking wheel lifting control mechanism.

[0020] More preferably, the end of the telescopic head of the electromagnetic telescopic lock extends backward beyond the outside of the electromagnetic telescopic lock by a certain distance, and a pressure plate is arranged behind the electromagnetic telescopic lock, one end of the pressure plate is hinged on the second cross beam, and the other end is provided with a second spring, the second spring is in a compressed state, and a wedge block is arranged in the middle of the pressure plate, a U-shaped groove is opened on the inclined surface of the wedge block, and the wedge block is clamped between the end of the telescopic head and the electromagnetic telescopic lock through the U-shaped groove.

[0021] More preferably, a hinge column is fixedly and vertically arranged on the inner side surface of the front frame, and the middle part of the fourth connecting plate is hinged through the hinge column.

[0022] In the above-mentioned automatic walking road cutting machine, as a preferred embodiment, the walking control mechanism also includes a second contact switch, the second contact switch is fixedly arranged under the second cross beam, the second electric shock switch is arranged on the moving route of the first connecting plate, and the signal output end of the second contact switch is electrically connected to the electromagnetic telescopic lock.

[0023] In the above-mentioned automatic walking road cutting machine, as a preferred embodiment, the cutting mechanism also includes a second sleeve and a mounting seat, the circular saw cutting blade and the slave pulley are linked through a transmission shaft, the transmission shaft is rotatably installed in the second sleeve, and there are two mounting seats, which are respectively fixedly connected to the side surfaces of the second sleeve, and the second sleeve is detachably connected to the front side of the chassis through the two mounting seats.

[0024] In the above-mentioned automatic walking road cutting machine, as a preferred embodiment, a step is provided at the bottom of the front side of the chassis, a straight groove matching the step is provided at the lower part of the mounting seat, and the mounting seat is inserted into the step through the straight groove.

[0025] In the above-mentioned automatic walking road cutting machine, as a preferred embodiment, a first adjusting device and a second adjusting device are further provided on the front side of the chassis, and the first adjusting device and the second adjusting device are respectively provided corresponding to the two mounting seats, and the first adjusting device and the second adjusting device are both laterally provided with penetrating adjusting bolts, and the ends of the two adjusting bolts are respectively abutted against the sides of the two mounting seats to the right and to the left.

[0026] In the above-mentioned automatic pavement cutting machine, as a preferred embodiment, the upper half of the circular saw cutting blade is wrapped with a saw box, and the saw box is detachably mounted on the frame. A first contact switch is provided at the front end of the saw box, and the signal output end of the first contact switch is electrically connected to the electromagnetic telescopic lock.

[0027] Preferably, a water tank is fixedly arranged on the bottom plate, and the lower end of the water tank is connected to the saw box through a water pipe.

[0028] In the above-mentioned automatic walking road cutting machine, as a preferred solution, the lifting mechanism further includes an inner bracket. The inner bracket is in a "C" shape and is movably arranged inside the front frame with the opening facing downwards. Rack bars are respectively arranged on the two arms of the inner bracket. A handle kit is arranged above the front frame. The handle kit is detachably connected to the screw rod. The screw rod is threadedly connected to the inner bracket. Fixed plates are respectively fixedly arranged on the inner sides of the two side walls of the front frame. A gear shaft is rotatably connected to the fixed plate. Gears are respectively arranged at both ends of the gear shaft. The two gears are respectively meshed with the two rack bars.

[0029] Preferably, a screw rod bracket is arranged on the upper surface of the front frame. The screw rod is rotatably connected to the screw rod bracket. A retaining piece is arranged on the side of the screw rod bracket. The screw rod penetrates through the screw rod bracket. A flower-shaped disc is fixedly arranged on the screw rod above the screw rod bracket. A plurality of grooves are formed in the circumference of the flower-shaped disc. The retaining piece can be inserted into any one of the grooves.

[0030] More preferably, a depth scale is arranged on the end face of the side wall of the front frame. A pointer is fixedly arranged on the inner bracket. The pointer is arranged corresponding to the depth scale.

[0031] In the above-mentioned automatic walking road cutting machine, as a preferred solution, a plurality of pulleys are arranged below the first cross beam. The walking wheel lifting control mechanism further includes a contact wheel, a first shaft sleeve, an elastic lifting device, a speed change device, a first pull rope and a main wheel device. The first shaft sleeve is installed above the chassis through the elastic lifting device. The contact wheel is in contact connection with the conveyor belt. The speed change device is linked with the contact wheel through a transmission shaft. The transmission shaft is rotatably installed in the first shaft sleeve. The driving wheel is installed in the main wheel device. The contact wheel drives the driving wheel to rotate through the speed change device and the main wheel device. One end of the first pull rope is connected to the main wheel device, and the other end is wound around the pulley and then connected to the lifting mechanism.

[0032] Preferably, the main wheel device includes a main sprocket, a driven sprocket, a chain and a chain box. The chain box is hinged on the chassis, and a hole is arranged on the chassis. The chain box passes through the hole downward. The main sprocket is arranged in the upper part of the chain box. The driven sprocket is arranged in the lower part of the chain box. The main sprocket is linked with the output end of the speed change device. The driven sprocket is linked with the driving wheel. The main sprocket and the driven sprocket are connected by the chain.

[0033] More preferably, a third bracket is fixedly arranged on the chassis in front of the main wheel device. A first gas spring is hinged between the upper part of the chain box and the third bracket. The first pull rope is connected to the lower part of the chain box.

[0034] More preferably, the elastic lifting device includes a guide rail, a paddle, a first bracket, a second bracket and a first spring, there are two guide rails, which are fixedly arranged in parallel on the upper surface of the chassis, the first bracket is Z-shaped, and is arranged between the two guide rails, the guide rail is provided with a paddle, the paddle is used to clamp the first bracket, the first bracket is hinged to the middle part of the second bracket, a first spring is arranged between the end of the second bracket and the first bracket, and the first sleeve is fixedly connected to the second bracket.

[0035] More preferably, the speed change device includes a reducer and two speed change pulleys, wherein the speed change pulley at the front end is linked to the contact wheel, the two speed change pulleys are arranged in opposite directions and connected by an endless belt, the speed change pulley at the rear end is connected to the reducer, and the output end of the reducer is linked to the main sprocket.

[0036] In the above-mentioned automatic walking road cutting machine, as a preferred embodiment, the front pilot wheel control mechanism also includes a front pilot wheel fixing frame, a front lifting plate, a second gas spring and four front grooved clamping wheels, the front pilot wheel fixing frame is fixedly arranged on the chassis, the four front grooved clamping wheels are distributed in a rectangular shape on the side of the front pilot wheel fixing frame, the front lifting plate is installed through the four front grooved clamping wheels, the front pilot wheel is arranged at the lower end of the front lifting plate, one end of the second gas spring is connected to the top of the front lifting plate, and the other end is connected to the front frame.

[0037] Preferably, the front pilot wheel control mechanism also includes a second pull rope, one end of which is connected to the front lifting plate, and the other end of which is connected to the lifting mechanism after passing through the pulley.

[0038] More preferably, the rear pilot wheel control mechanism also includes a rear pilot wheel fixing frame, a rear lifting plate, a third gas spring, a fourth bracket and four rear grooved clamping wheels, the rear pilot wheel fixing frame and the fourth bracket are both fixedly arranged on the chassis, the four rear grooved clamping wheels are distributed in a rectangular shape on the side of the rear pilot wheel fixing frame, the rear lifting plate is installed through the four rear grooved clamping wheels, the rear pilot wheel is arranged at the lower end of the rear lifting plate, one end of the third gas spring is connected to the top of the rear lifting plate, and the other end is connected to the fourth bracket.

[0039] More preferably, the rear pilot wheel control mechanism further includes a third pull rope, one end of the third pull rope is connected to the rear lifting plate, and the other end of the third pull rope is connected to the lifting mechanism after passing through the pulley.

[0040] The present invention provides an automatic walking road cutting machine, which has the following beneficial effects:

[0041] 1. The present invention provides an automatic walking road cutting machine, which can walk stably in a straight line by inserting the shaft plates of the front and rear pilot wheels into the grooves cut by the circular saw cutting blades during the cutting of the ground through the circular saw cutting blades;

[0042] 2. The present invention provides an automatic walking road cutting machine, which is provided with a contact wheel, and the driving wheel is driven to rotate through the transmission chain of the circular saw cutting blade, thereby providing forward power, and does not require manual pushing or hand support. At the same time, the contact wheel can be disengaged from the transmission chain to stop, and the operation is convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 This is a schematic diagram of the overall structure of the automatic walking road cutting machine provided by an embodiment of the present invention;

[0044] Figure 2 The second schematic diagram of the overall structure of the automatic walking road cutting machine provided by the embodiment of the present invention;

[0045] Figure 3 The third schematic diagram of the overall structure of the automatic walking road cutting machine provided by the embodiment of the present invention;

[0046] Figure 4 A schematic diagram of the overall structure of the frame of the automatic walking road cutting machine provided in an embodiment of the present invention;

[0047] Figure 5 A schematic diagram of the overall structure of the lifting control mechanism of the walking wheel of the automatic walking road cutting machine provided by an embodiment of the present invention;

[0048] Figure 6 A schematic diagram of the overall structure of the travel wheel lifting control mechanism of the automatic travel road cutting machine provided by the embodiment of the present invention after the pulley is removed;

[0049] Figure 7 A schematic diagram of the overall structure of the front pilot wheel control mechanism of the automatic walking road cutting machine provided by an embodiment of the present invention;

[0050] Figure 8 A schematic diagram of the overall structure of the rear pilot wheel control mechanism of the automatic walking road cutting machine provided by an embodiment of the present invention;

[0051] Fig. 9 A schematic diagram of the overall structure of a power device of an automatic road cutting machine provided by an embodiment of the present invention;

[0052] Fig.10 A schematic diagram of the overall structure of the walking control mechanism of the automatic walking road cutting machine provided in an embodiment of the present invention;

[0053] Fig.11This is a schematic diagram of the overall structure of the screw rod of the automatic road cutting machine provided in an embodiment of the present invention.

[0054] Description of reference numerals:

[0055] 1- chassis, 11- front frame, 12- rear frame, 13- first cross beam, 14- second cross beam, 15- step, 16- first adjustment device, 17- second adjustment device, 18- water tank, 19- rear driven wheel, 110- screw support, 111- saw box;

[0056] 2-lifting mechanism, 21-inner bracket, 22-rack, 23-fixing plate, 24-handle kit, 25-screw, 26-gear, 27-front driven wheel, 28-gear shaft, 29-blocking piece, 210-patterned plate;

[0057] 3-travel wheel lifting control mechanism, 31-guide rail, 32-paddle, 33-first bracket, 34-second bracket, 35-first spring, 36-driving wheel, 37-chain box, 38-contact wheel, 39-reducer, 310-speed-changing pulley, 311-third bracket, 312-first gas spring, 313-first pull rope, 314-first shaft sleeve;

[0058] 4-front pilot wheel control mechanism, 41-front pilot wheel fixing frame, 42-front pilot wheel, 43-front lifting plate, 44-second gas spring, 45-front grooved clamping wheel, 46-second pull rope;

[0059] 5-rear pilot wheel control mechanism, 51-rear pilot wheel fixing frame, 52-rear pilot wheel, 53-rear lifting plate, 54-third gas spring, 55-rear grooved clamping wheel, 56-third pull rope, 57-fourth bracket;

[0060] 6-cutting mechanism, 61-second shaft sleeve, 62-mounting seat, 63-straight groove, 64-circular saw cutting blade, 65-first contact switch, 66-water pipe;

[0061] 7-travel control mechanism, 71-first connecting plate, 72-second connecting plate, 73-third connecting plate, 74-fourth connecting plate, 75-electromagnetic telescopic lock, 76-second contact switch, 77-telescopic head, 78-pressing plate, 79-hinged column, 711-wedge block, 712-extension plate, 713-second spring;

[0062] 8-power device, 81-power machine, 82-main pulley, 83-slave pulley, 84-conveyor belt;

[0063] 9-Pulley. DETAILED DESCRIPTION

[0064] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0065] The exemplary embodiments of the present invention are described below in conjunction with specific circumstances:

[0066] Please refer to Figure 1 , Figure 2 and Figure 3 , Figure 1 This is one of the overall structural schematic diagrams of the automatic walking road cutting machine provided by an embodiment of the present invention. Figure 2 The second schematic diagram of the overall structure of the automatic walking road cutting machine provided by the embodiment of the present invention is as follows: Figure 3 The third schematic diagram of the overall structure of the automatic walking road cutting machine provided in an embodiment of the present invention; the present invention provides an automatic walking road cutting machine, including: a frame, a lifting mechanism 2, a walking wheel lifting control mechanism 3, a front pilot wheel control mechanism 4, a rear pilot wheel control mechanism 5, a cutting mechanism 6, a walking control mechanism 7 and a power device 8, the lifting mechanism 2, the walking wheel lifting control mechanism 3, the front pilot wheel control mechanism 4, the rear pilot wheel control mechanism 5, the cutting mechanism 6, the walking control mechanism 7 and the power device 8 are all installed on the frame.

[0067] The frame includes a chassis 1, and rear driven wheels 19 are respectively arranged on both sides of the rear end of the chassis 1.

[0068] The lifting mechanism 2 is located at the front of the chassis 1, and includes two front driven wheels 27. The two front driven wheels 27 are located at the lower sides of the front of the chassis 1. The lifting mechanism 2 is used to adjust the height of the two front driven wheels 27; the two front driven wheels 27 are raised or lowered with the lifting mechanism 2, thereby raising the height of the front end of the entire frame, which can control the cutting depth of the circular saw cutting blade 64 or lift the circular saw cutting blade 64 off the ground.

[0069] The traveling wheel lifting control mechanism 3 includes a driving wheel 36 . The driving wheel 36 is located at the lower middle part of the chassis 1 . The traveling wheel lifting control mechanism 3 is used to adjust the height of the driving wheel 36 .

[0070] The front pilot wheel control mechanism 4 includes a front pilot wheel 42 , and the front pilot wheel 42 is located at the lower front part of the chassis 1 .

[0071] The rear pilot wheel control mechanism 5 includes a rear pilot wheel 52, which is located at the rear lower part of the chassis 1. The front pilot wheel 42 and the rear pilot wheel 52 have the same structure, both of which are structures in which an axle plate is arranged on a round roller, and the radius of the axle plate is greater than the radius of the round roller.

[0072] The cutting mechanism 6 is arranged at the front end of the chassis 1, and includes a circular saw cutting blade 64. The circular saw cutting blade 64, the front pilot wheel 42 and the rear pilot wheel 52 are collinear.

[0073] The travel control mechanism 7 is used to control the driving wheel 36 to rotate.

[0074] The power device 8 includes a power machine 81 and a transmission chain. The power machine 81 provides power to the cutting mechanism 6 and the travel control mechanism 7 through the transmission chain.

[0075] When the automatic walking road cutting machine of the present invention is working, the circular saw cutting blade 64, the front pilot wheel 42 and the rear pilot wheel 52 are arranged in a colinear manner. As the circular saw cutting blade 64 cuts on the road surface, a straight groove is cut behind the circular saw cutting blade 64. The shaft plates of the front pilot wheel 42 and the rear pilot wheel 52 are inserted into the grooves cut by the circular saw cutting blade 64, so that the machine can walk stably in a straight line.

[0076] Please refer to Fig. 9 , Fig. 9 The overall structural schematic diagram of the automatic road cutting machine power device 8 provided in an embodiment of the present invention; preferably, the transmission chain includes a main pulley 82, a slave pulley 83 and a conveyor belt 84, and the main pulley 82, the slave pulley 83 and the conveyor belt 84 are all arranged on one side of the chassis 1, and the slave pulley 83 is linked with the circular saw cutting blade 64.

[0077] Please refer to Figure 4 , Figure 4 Schematic diagram of the overall structure of the frame of the automatic walking road cutting machine provided in an embodiment of the present invention; as a preferred embodiment, the frame also includes a front frame 11, a rear frame 12, a first crossbeam 13 and a second crossbeam 14, the front frame 11 and the rear frame 12 are respectively fixed and parallelly arranged above the front end and the rear end of the chassis 1, the front frame 11 and the rear frame 12 are both perpendicular to the chassis 1, and the first crossbeam 13 and the second crossbeam 14 are parallel and fixedly connected at the upper end between the front frame 11 and the rear frame 12.

[0078] Please refer to Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the overall structure of the automatic walking road cutting machine walking wheel lifting control mechanism 3 provided in an embodiment of the present invention, Figure 6The present invention provides an embodiment of the automatic walking road cutting machine provided by the present invention, and the overall structural diagram of the walking wheel lifting control mechanism 3 after the pulley 9 is removed; in the above-mentioned automatic walking road cutting machine, as a preferred embodiment, the walking control mechanism 7 includes a connecting plate mechanism and an electromagnetic telescopic lock 75, and the connecting plate mechanism and the electromagnetic telescopic lock 75 are installed on the left and right sides of the second beam 14, and the electromagnetic telescopic lock 75 is provided with a telescopic head 77, and the telescopic head 77 crosses the second beam 14 and exceeds the second beam 14 by a certain distance, and the telescopic head 77 limits the connecting plate mechanism, and one end of the connecting plate mechanism is hinged on the second beam 14, and the other end is connected to the walking wheel lifting control mechanism 3.

[0079] Please refer to Fig.10 , Fig.10 Schematic diagram of the overall structure of the walking control mechanism 7 of the automatic walking road cutting machine provided in an embodiment of the present invention; the end of the telescopic head 77 of the electromagnetic telescopic lock 75 extends backward beyond the outside of the electromagnetic telescopic lock 75 by a certain distance, and a pressure plate 78 is arranged behind the electromagnetic telescopic lock 75, one end of the pressure plate 78 is hinged on the second beam 14, and the other end is connected to an extension plate 712 extending from the second beam 14 through a second spring 713, a wedge block 711 is arranged in the middle of the pressure plate 78, and a U-shaped groove is opened on the inclined surface of the wedge block 711, and the wedge block 711 is inserted between the end of the telescopic head 77 and the electromagnetic telescopic lock 75 through the U-shaped groove.

[0080] Preferably, the connecting plate mechanism includes a first connecting plate 71, a second connecting plate 72, a third connecting plate 73 and a fourth connecting plate 74. The first connecting plate 71, the second connecting plate 72, the third connecting plate 73 and the fourth connecting plate 74 are hinged to each other. The front end of the first connecting plate 71 is hinged to the second beam 14, and the end of the fourth connecting plate 74 contacts and connects to the walking wheel lifting control mechanism 3.

[0081] More preferably, a hinge column 79 is fixedly and vertically disposed on the inner side surface of the front frame 11 , and the middle portion of the fourth connecting plate 74 is hinged via the hinge column 79 .

[0082] In the above-mentioned automatic walking road cutting machine, as a preferred solution, the walking control mechanism 7 also includes a second contact switch 76, the second contact switch 76 is fixedly arranged under the second beam 14, the second electric shock switch is arranged on the moving route of the first connecting plate 71, and the signal output end of the second contact switch 76 is electrically connected to the electromagnetic telescopic lock 75.

[0083] In the above-mentioned automatic walking road cutting machine, as a preferred embodiment, the cutting mechanism 6 also includes a second sleeve 61 and a mounting seat 62. The circular saw cutting blade 64 and the pulley 83 are linked through a transmission shaft. The transmission shaft is rotatably installed in the second sleeve 61. There are two mounting seats 62, which are respectively fixedly connected to the side surfaces of the second sleeve 61. The second sleeve 61 is detachably connected to the front side of the chassis 1 through the two mounting seats 62.

[0084] In the above-mentioned automatic walking road surface cutting machine, as a preferred solution, a step 15 is provided at the bottom of the front side of the chassis 1, and a straight groove 63 matching the step 15 is provided at the lower part of the mounting seat 62. The mounting seat 62 is snapped onto the step 15 through the straight groove 63.

[0085] In the above-mentioned automatic walking road surface cutting machine, as a preferred solution, a first adjusting device 16 and a second adjusting device 17 are further provided on the front side of the chassis 1. The first adjusting device 16 and the second adjusting device 17 are respectively provided corresponding to the two mounting seats 62. Adjusting bolts penetrating through are horizontally provided on both the first adjusting device 16 and the second adjusting device 17. The end parts of the two adjusting bolts respectively abut against the sides of the two mounting seats 62 to the right and to the left. The adjusting bolts of the first adjusting device 16 and the second adjusting device 17 are used to adjust the horizontal positions of the two mounting seats 62, so as to adjust the horizontal position of the entire circular saw blade 64.

[0086] In the above-mentioned automatic walking road surface cutting machine, as a preferred solution, the upper half of the circular saw blade 64 is wrapped with a saw box 111. The saw box 111 is detachably installed on the frame. A first contact switch 65 is provided at the front end of the saw box 111. The signal output end of the first contact switch 65 is electrically connected to the electromagnetic telescopic lock 75.

[0087] Preferably, a water tank 18 is further fixedly provided on the bottom plate. The lower end of the water tank 18 is communicated with the saw box 111 through a water pipe 66. During operation, the water in the water tank 18 can timely cool down the circular saw blade 64.

[0088] In the above-mentioned automatic walking road surface cutting machine, as a preferred solution, the lifting mechanism 2 further includes an inner support 21. The inner support 21 is in a "C" shape and is movably arranged inside the front frame 11 with the opening facing downwards. Rack bars 22 are respectively provided on the two arms of the inner support 21. A handle kit 24 is provided above the front frame 11. The handle kit 24 is detachably connected to a screw rod 25. The screw rod 25 is threadedly connected to the inner support 21. Fixed plates 23 are respectively fixedly provided on the inner sides of the two side walls of the front frame 11. A gear shaft 28 is rotatably connected to the fixed plates 23. Gears 26 are respectively provided at both ends of the gear shaft 28. The two gears 26 are respectively engaged with the two rack bars 22.

[0089] Please refer to Fig.11 , Fig.11 which is the overall structural schematic diagram of the screw rod 25 of the automatic walking road surface cutting machine provided by the embodiment of the present invention; preferably, a screw rod support 110 is provided on the upper surface of the front frame 11. The screw rod 25 is rotatably connected to the screw rod support 110. A retaining piece 29 is provided on the side of the screw rod support 110. The screw rod 25 penetrates through the screw rod support 110. A flower-shaped disc 210 is fixedly provided on the screw rod 25 above the screw rod support 110. A plurality of grooves are provided on the circumference of the flower-shaped disc 210. The retaining piece 29 can be snapped into any one of the grooves.

[0090] Preferably, a depth scale is provided on the side wall end face of the front frame 11, and a pointer is fixedly provided on the inner bracket 21, and the pointer is provided correspondingly to the depth scale. The depth scale can be selected to be a scale line engraved or posted on the side wall end face of the front frame 11.

[0091] In the above-mentioned automatic walking road cutting machine, as a preferred solution, multiple pulleys 9 are arranged under the first crossbeam 13, and the walking wheel lifting control mechanism 3 also includes a contact wheel 38, a first sleeve 314, an elastic lifting device, a speed change device, a first pull rope 313 and a main wheel device. The first sleeve 314 is installed above the chassis 1 through the elastic lifting device, the contact wheel 38 contacts and connects the conveyor belt 84, the speed change device and the contact wheel 38 are linked through the transmission shaft, the transmission shaft is rotatably installed in the first sleeve 314, the driving wheel 36 is installed in the main wheel device, and the contact wheel 38 drives the driving wheel 36 to rotate through the speed change device and the main wheel device. One end of the first pull rope 313 is connected to the main wheel device, and the other end is connected to the lifting mechanism 2 after passing through the pulley 9.

[0092] Preferably, the main wheel device includes a main sprocket, a slave sprocket, a chain and a chain box 37. The chain box 37 is hinged on the chassis 1, and a hole is provided on the chassis 1. The chain box 37 passes downward from the hole. The main sprocket is arranged in the upper part of the chain box 37, and the slave sprocket is arranged in the lower part of the chain box 37. The main sprocket is linked to the output end of the speed change device, and the slave sprocket is linked to the driving wheel 36. The main sprocket and the slave sprocket are connected by a chain.

[0093] More preferably, a third bracket 311 is fixedly provided on the chassis 1 in front of the main wheel device, a first gas spring 312 is hinged between the upper part of the chain box 37 and the third bracket 311 , and a first pull rope 313 is connected to the lower part of the chain box 37 .

[0094] More preferably, the elastic lifting device includes a guide rail 31, a paddle 32, a first bracket 33, a second bracket 34 and a first spring 35. There are two guide rails 31, which are fixedly arranged in parallel on the upper surface of the chassis 1. The first bracket 33 is Z-shaped and arranged between the two guide rails 31. The guide rail 31 is provided with a paddle 32, which is used to clamp the first bracket 33. The first bracket 33 is hinged to the middle part of the second bracket 34. A first spring 35 is arranged between the end of the second bracket 34 and the first bracket 33, and the first sleeve 314 is fixedly connected to the second bracket 34.

[0095] More preferably, the speed change device includes a speed reducer 39 and two speed change pulleys 310, wherein the speed change pulley 310 at the front end is linked to the contact wheel 38, the two speed change pulleys 310 are arranged in opposite directions and connected by an endless belt, and the speed change pulley 310 at the rear end is connected to the speed reducer 39, and the output end of the speed reducer 39 is linked to the main sprocket.

[0096] Please refer to Figure 7 , Figure 7 Schematic diagram of the overall structure of the front pilot wheel control mechanism 4 of the automatic walking road cutting machine provided in an embodiment of the present invention; in the above-mentioned automatic walking road cutting machine, as a preferred embodiment, the front pilot wheel control mechanism 4 also includes a front pilot wheel fixing frame 41, a front lifting plate 43, a second gas spring 44 and four front grooved clamping wheels 45, the front pilot wheel fixing frame 41 is fixedly set on the chassis 1, the four front grooved clamping wheels 45 are distributed in a rectangular shape on the side of the front pilot wheel fixing frame 41, the front lifting plate 43 is installed through the four front grooved clamping wheels 45, the front pilot wheel 42 is set at the lower end of the front lifting plate 43, one end of the second gas spring 44 is connected to the top of the front lifting plate 43, and the other end is connected to the front frame 11.

[0097] Preferably, the front pilot wheel control mechanism 4 further includes a second pull rope 46 , one end of which is connected to the front lifting plate 43 , and the other end of which is connected to the lifting mechanism 2 after passing through the pulley 9 .

[0098] Please refer to Figure 8 , Figure 8 Schematic diagram of the overall structure of the rear pilot wheel control mechanism 5 of the automatic walking road cutting machine provided in an embodiment of the present invention; more preferably, the rear pilot wheel control mechanism 5 also includes a rear pilot wheel fixing frame 51, a rear lifting plate 53, a third gas spring 54, a fourth bracket 57 and four rear grooved clamping wheels 55, the rear pilot wheel fixing frame 51 and the fourth bracket 57 are both fixedly arranged on the chassis 1, the four rear grooved clamping wheels 55 are distributed in a rectangular shape on the side of the rear pilot wheel fixing frame 51, the rear lifting plate 53 is installed through the four rear grooved clamping wheels 55, the rear pilot wheel 52 is arranged at the lower end of the rear lifting plate 53, one end of the third gas spring 54 is connected to the top of the rear lifting plate 53, and the other end is connected to the fourth bracket 57.

[0099] More preferably, the rear pilot wheel control mechanism 5 further includes a third pull rope 56 , one end of which is connected to the rear lifting plate 53 , and the other end of which is connected to the lifting mechanism 2 after passing through the pulley 9 .

[0100] The working principle of the automatic walking road cutting machine of the present invention is as follows:

[0101] Preparation stage: First, a line is drawn or marked on the road surface according to the points to be cut to form a track line, and the circular saw cutting blade 64 and the rear pilot wheel 52 are placed in the track line.

[0102] Initial operation stage: At the initial operation stage, the automatic walking road cutting machine of the present invention starts the power machine 81, and the circular saw cutting blade 64 starts to rotate; the handle kit 24 is turned to make the circular saw cutting blade 64 fall until the circular saw cutting blade 64 reaches the required cutting depth; the operator pushes the first connecting plate 71 backward until the telescopic head 77 of the electromagnetic telescopic lock 75 automatically pops out, limiting the first connecting plate 71 to the current position. At this time, the contact wheel 38 contacts the conveyor belt 84 under the lever action of the first connecting plate 71, the second connecting plate 72, the third connecting plate 73 and the fourth connecting plate 74, and the contact wheel 38 starts to rotate. The contact wheel 38 is linked with the speed change pulley 310, thereby driving the driving wheel 36 to rotate through the reducer 39, and the automatic walking road cutting machine starts to move forward and cut the ground.

[0103] Normal working stage: When the automatic walking road cutting machine cuts the ground to the preset position, a baffle or roadblock can be placed at the predetermined position. At this time, the first contact switch 65 is triggered, the telescopic head 77 of the electromagnetic telescopic lock 75 is retracted, the first connecting plate 71 is restored, the contact wheel 38 is separated from the surface of the conveyor belt 84 under the action of the elastic lifting device, the contact wheel 38 stops rotating, and the automatic walking road cutting machine stops moving. In addition, in the normal working stage, the automatic walking road cutting machine needs to stop moving, press the pressure plate 78, the end of the telescopic head 77 of the electromagnetic telescopic lock 75 is pulled out backwards, the telescopic head 77 is stored in the electromagnetic telescopic lock 75, the first connecting plate 71 is restored, the contact wheel 38 is separated from the surface of the conveyor belt 84 under the action of the elastic lifting device, the contact wheel 38 stops rotating, and the automatic walking road cutting machine stops moving. After the first connecting plate 71 is restored, it contacts and triggers the first contact switch 65, and the electromagnetic telescopic lock 75 is powered off in time.

[0104] The handle kit 24 is fixedly connected to the screw rod 25. The handle kit 24 rotates to control the rise or fall of the front pilot wheel 42, the rear pilot wheel 52, the driving wheel 36 and the front end of the chassis 1. One end of the first pull rope 313, the second pull rope 46 and the third pull rope 56 are fixed to the inner bracket 21. As the inner bracket 21 rises or falls, the driving wheel 36, the front pilot wheel 42 and the rear pilot wheel 52 correspondingly connected to the first pull rope 313, the second pull rope 46 and the third pull rope 56 fall or rise accordingly. The first gas spring 312, the second gas spring 44 and the third gas spring 54 respectively provide downward propulsion for the driving wheel 36, the front pilot wheel 42 and the rear pilot wheel 52, so that the driving wheel 36, the front pilot wheel 42 and the rear pilot wheel 52 maintain a certain degree of contact ability when in contact with the ground.

[0105] Finally, it should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the presence of other identical elements in the process, method, article or device including the elements.

[0106] The specific implementation methods provided by the present invention are introduced in detail above. Specific examples are used herein to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method of the present invention and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present invention, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present invention.

Claims

1. An automatic walking road cutting machine, characterized in that: include: A frame, a lifting mechanism, a walking wheel lifting control mechanism, a front pilot wheel control mechanism, a rear pilot wheel control mechanism, a cutting mechanism, a walking control mechanism and a power device, wherein the lifting mechanism, the walking wheel lifting control mechanism, the front pilot wheel control mechanism, the rear pilot wheel control mechanism, the cutting mechanism, the walking control mechanism and the power device are all installed on the frame, wherein: The frame includes a chassis, and rear driven wheels are respectively arranged on both sides of the rear end of the chassis; The lifting mechanism is located at the front of the chassis and includes two front driven wheels. The two front driven wheels are located below the two sides of the front of the chassis. The lifting mechanism is used to adjust the height of the two front driven wheels. The walking wheel lifting control mechanism includes a driving wheel, the driving wheel is located below the middle of the chassis, and the walking wheel lifting control mechanism is used to adjust the height of the driving wheel; The front pilot wheel control mechanism comprises a front pilot wheel, and the front pilot wheel is located below the front part of the chassis; The rear pilot wheel control mechanism comprises a rear pilot wheel, and the rear pilot wheel is located below the rear part of the chassis; The cutting mechanism is arranged at the front end of the chassis, and comprises a circular saw cutting blade, wherein the circular saw cutting blade, the front pilot wheel and the rear pilot wheel are in a collinear line; The travel control mechanism is used to control the driving wheel to rotate; The power device includes a power machine and a transmission chain, and the power machine provides power to the cutting mechanism and the travel control mechanism through the transmission chain; The transmission chain comprises a main pulley, a secondary pulley and a conveyor belt, wherein the main pulley, the secondary pulley and the conveyor belt are all arranged on one side of the chassis, and the secondary pulley is linked with the circular saw cutting blade; The frame further comprises a front frame, a rear frame, a first crossbeam and a second crossbeam, wherein the front frame and the rear frame are respectively fixedly arranged above the front end and the rear end of the chassis in parallel, and the front frame and the rear frame are both perpendicular to the chassis, and the first crossbeam and the second crossbeam are parallelly fixedly connected to the upper end between the front frame and the rear frame; The walking control mechanism includes a connecting plate mechanism and an electromagnetic telescopic lock, the connecting plate mechanism and the electromagnetic telescopic lock are installed on the left and right sides of the second crossbeam, the electromagnetic telescopic lock is provided with a telescopic head, the telescopic head crosses the second crossbeam and exceeds the second crossbeam by a certain distance, the telescopic head limits the connecting plate mechanism, one end of the connecting plate mechanism is hinged on the second crossbeam, and the other end is connected to the walking wheel lifting control mechanism; The connecting plate mechanism includes a first connecting plate, a second connecting plate, a third connecting plate and a fourth connecting plate, wherein the first connecting plate, the second connecting plate, the third connecting plate and the fourth connecting plate are hinged to each other, the front end of the first connecting plate is hinged to the second cross beam, and the end of the fourth connecting plate is in contact with and connected to the walking wheel lifting control mechanism; The end of the telescopic head of the electro-magnetic telescopic lock extends backward beyond the outside of the electro-magnetic telescopic lock by a certain distance. A pressing plate is arranged behind the electro-magnetic telescopic lock. One end of the pressing plate is hinged on the second cross beam, and the other end is provided with a second spring. The second spring is in a compressed state. A wedge block is arranged in the middle of the pressing plate. A U-shaped groove is formed on the inclined surface of the wedge block. The wedge block is clamped between the end of the telescopic head and the electro-magnetic telescopic lock through the U-shaped groove. An articulated column is fixedly and vertically arranged on the inner side surface of the front frame. The middle part of the fourth connecting plate is articulated through the articulated column. The walking control mechanism further includes a second contact switch. The second contact switch is fixedly arranged below the second cross beam. The second contact switch is arranged on the moving route of the first connecting plate. The signal output end of the second contact switch is electrically connected to the electro-magnetic telescopic lock. The cutting mechanism further includes a second shaft sleeve and a mounting seat. The circular saw blade and the driven pulley are linked through a transmission shaft. The transmission shaft is rotatably installed in the second shaft sleeve. There are two mounting seats, which are respectively fixedly connected to the side surface of the second shaft sleeve. The second shaft sleeve is detachably connected to the front side surface of the chassis through the two mounting seats.

2. The automatic walking road cutting machine according to claim 1, characterized in that: A step is arranged at the bottom of the front side surface of the chassis. A straight groove matching the step is arranged at the lower part of the mounting seat. The mounting seat is clamped onto the step through the straight groove.

3. The automatic walking road cutting machine according to claim 2, characterized in that: A first adjusting device and a second adjusting device are further arranged on the front side surface of the chassis. The first adjusting device and the second adjusting device are respectively arranged corresponding to the two mounting seats. Adjusting bolts penetrating through are horizontally arranged on both the first adjusting device and the second adjusting device. The end parts of the two adjusting bolts respectively abut against the side surfaces of the two mounting seats to the right and to the left.

4. The automatic walking road cutting machine according to claim 3, characterized in that: The upper half of the circular saw blade is wrapped with a saw box. The saw box is detachably installed on the frame. A first contact switch is arranged at the front end of the saw box. The signal output end of the first contact switch is electrically connected to the electro-magnetic telescopic lock. A water tank is also fixedly arranged on the chassis. The lower end of the water tank is communicated to the saw box through a water pipe.

5. The automatic walking road cutting machine according to claim 4, characterized in that: The lifting mechanism further includes an inner support. The inner support is in a "C" shape and is movably arranged inside the front frame with the opening facing downwards. Rack teeth are respectively arranged on the two arms of the inner support. A handle kit is arranged above the front frame. The handle kit is detachably connected to a screw rod. The screw rod is threadedly connected to the inner support. Fixed plates are respectively fixedly arranged on the inner sides of the two side walls of the front frame. A gear shaft is rotatably connected to the fixed plates. Gears are respectively arranged at both ends of the gear shaft. The two gears are respectively meshed with the two rack teeth. A screw rod support is arranged on the upper surface of the front frame. The screw rod is rotatably connected to the screw rod support. A retaining piece is arranged on the side part of the screw rod support. The screw rod penetrates through the screw rod support. A flower-shaped disc is fixedly arranged on the screw rod above the screw rod support. A plurality of grooves are formed on the circumference of the flower-shaped disc. The retaining piece can be clamped into any one of the grooves. A depth scale is arranged on the end face of the side wall of the front frame. A pointer is fixedly arranged on the inner support. The pointer is arranged corresponding to the depth scale.

6. The self-propelled road cutting machine according to claim 4, characterized in that: A plurality of pulleys are arranged below the first crossbeam, and the walking wheel lifting control mechanism also includes a contact wheel, a first sleeve, an elastic lifting device, a speed change device, a first pull rope and a main wheel device. The first sleeve is installed above the chassis through the elastic lifting device, the contact wheel is in contact with and connected to the conveyor belt, the speed change device is linked with the contact wheel through a transmission shaft, the transmission shaft is rotatably installed in the first sleeve, the driving wheel is installed in the main wheel device, the contact wheel drives the driving wheel to rotate through the speed change device and the main wheel device, one end of the first pull rope is connected to the main wheel device, and the other end is connected to the lifting mechanism after passing through the pulley; The main wheel device includes a main sprocket, a slave sprocket, a chain and a chain box, wherein the chain box is hinged on the chassis, and a hole is provided on the chassis, through which the chain box passes downward, the main sprocket is arranged in the upper part of the chain box, and the slave sprocket is arranged in the lower part of the chain box, the main sprocket is linked with the output end of the speed change device, the slave sprocket is linked with the driving wheel, and the main sprocket and the slave sprocket are connected through the chain; A third bracket is fixedly arranged on the chassis in front of the main wheel device, a first gas spring is hinged between the upper part of the chain box and the third bracket, and the first pull rope is connected to the lower part of the chain box; The elastic lifting device includes a guide rail, a paddle, a first bracket, a second bracket and a first spring. There are two guide rails, which are fixedly arranged in parallel on the upper surface of the chassis. The first bracket is Z-shaped and arranged between the two guide rails. The guide rail is provided with a paddle, which is used to clamp the first bracket. The first bracket is hinged to the middle part of the second bracket. A first spring is arranged between the end of the second bracket and the first bracket. The first shaft sleeve is fixedly connected to the second bracket. The speed changing device includes a speed reducer and two speed change pulleys, wherein the speed change pulley at the front end is linked with the contact wheel, the two speed change pulleys are arranged in opposite directions and connected by an endless belt, the speed change pulley at the rear end is connected to the speed reducer, and the output end of the speed reducer is linked with the main sprocket.

7. The self-propelled road cutting machine according to claim 6, characterized in that: The front pilot wheel control mechanism also includes a front pilot wheel fixing frame, a front lifting plate, a second gas spring and four front grooved clamping wheels, wherein the front pilot wheel fixing frame is fixedly arranged on the chassis, the four front grooved clamping wheels are distributed in a rectangular shape on the side of the front pilot wheel fixing frame, the front lifting plate is installed through the four front grooved clamping wheels, the front pilot wheel is arranged at the lower end of the front lifting plate, one end of the second gas spring is connected to the top of the front lifting plate, and the other end is connected to the front frame; The front pilot wheel control mechanism also includes a second pull rope, one end of which is connected to the front lifting plate, and the other end of which is connected to the lifting mechanism after passing through the pulley; The rear pilot wheel control mechanism also includes a rear pilot wheel fixing frame, a rear lifting plate, a third gas spring, a fourth bracket and four rear grooved clamping wheels. The rear pilot wheel fixing frame and the fourth bracket are both fixedly arranged on the chassis. The four rear grooved clamping wheels are distributed in a rectangular shape on the side of the rear pilot wheel fixing frame. The rear lifting plate is installed through the four rear grooved clamping wheels. The rear pilot wheel is arranged at the lower end of the rear lifting plate. One end of the third gas spring is connected to the top of the rear lifting plate, and the other end is connected to the fourth bracket. The rear pilot wheel control mechanism also includes a third pull rope, one end of which is connected to the rear lifting plate, and the other end of which is connected to the lifting mechanism after passing through the pulley.

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