Grooving machine for highway overhaul and maintenance

Abstract

The invention relates to a grooving machine for road overhaul and maintenance, belongs to the technical field of road construction equipment, and solves the problem that an existing grooving machine can only cut one kerf at a time. The grooving machine comprises a bottom frame, universal wheels with brakes are installed on the bottom frame, and the bottom frame is connected with a handle. The cutting direction of the cutting assemblies is the first direction, the cutting assemblies are installed on the bottom frame in a sliding mode in the second direction, the two cutting assemblies are sequentially arranged in the second direction, and the second direction is perpendicular to the first direction in the horizontal plane; and the driving assembly is installed on the bottom frame and connected with the cutting assemblies, and the driving assembly is used for driving the cutting assemblies to slide in the second direction so as to change the distance between the two cutting assemblies. According to the grooving machine, two kerfs can be cut off at a time, and the distance between the two cutting assemblies can be adjusted according to the width of a notch needing to be formed, so that the grooving machine is suitable for forming notches with different widths in a road, the grooving construction time is saved, and the practicability is higher.

Description

Technical Field

[0001] The invention belongs to the technical field of road construction equipment, and in particular relates to a grooving machine for highway inspection and maintenance. Background Art

[0002] Currently, roads are mostly made of concrete. During their use, it is sometimes necessary to cut grooves on them for inspection and maintenance, or to bury pipelines and lay drainage pipes underneath. As a mechanical device, the slotting machine's main components include a power system, a transmission system, a cutting system, a travel system, and a control system. The power system provides the power source; the transmission system transmits power to the cutting system and the travel system; the cutting system is the core component of the slotting machine, consisting of a tool, a cutter disc, or a chain, and is responsible for cutting and grooving the road surface; the travel system enables the slotting machine to move on the road surface, achieving continuous grooving operations; and the control system is used to operate and adjust various parameters of the slotting machine, such as cutting depth and travel speed.

[0003] Grooving machines are a mature technology and are widely used in road construction. However, current machines only have a single cutting system, and therefore can only create a single slit at a time. In actual construction sites, road grooving requires more than a single cut; it often requires two round trips, which is time-consuming and labor-intensive. Summary of the Invention

[0004] The present invention provides a grooving machine for highway inspection and maintenance, which is used to solve the technical problem that the grooving machine in the related art can only cut one slit at a time.

[0005] The present invention is achieved through the following technical solution: a slotting machine for highway repair and maintenance, comprising:

[0006] A chassis is provided with a universal wheel with a built-in brake, and the chassis is also connected to a handle;

[0007] a cutting assembly having a cutting direction in a first direction, the cutting assembly being slidably mounted on the base frame along a second direction, and the cutting assembly being provided in two groups, the two groups of cutting assemblies being arranged sequentially in the second direction, wherein the second direction is perpendicular to the first direction in a horizontal plane;

[0008] A driving assembly is installed on the base frame and connected to the cutting assembly. The driving assembly is used to drive the cutting assembly to slide along the second direction to change the distance between the two groups of cutting assemblies.

[0009] Furthermore, in order to better implement the present invention, a protective cover is installed on the base frame, and the protective cover is arranged outside the cutting assembly and the driving assembly. The handle is located behind the protective cover, and the front end side wall of the protective cover is penetrated to form an opening.

[0010] Furthermore, in order to better implement the present invention, the cutting assembly includes:

[0011] A bottom plate is slidably connected to the bottom frame, one end of the bottom plate is hinged with a mounting plate, the mounting plate is located above the bottom plate, and the mounting plate is connected to a pressing mechanism;

[0012] an electric motor, mounted on the mounting plate;

[0013] A saw blade is rotatably mounted on the mounting plate via a rotating shaft, the saw blade is located on the side of the mounting plate, the axial direction of the rotating shaft is the second direction, and a clearance hole for the saw blade to pass through is formed on the bottom plate;

[0014] A belt transmission pair is connected to the output shaft of the motor and the rotating shaft, and the belt transmission pair is used to transmit the power output by the motor to the rotating shaft.

[0015] Furthermore, in order to better implement the present invention, the pressing mechanism includes:

[0016] a side plate fixedly connected to the mounting plate, the side plate being provided with a protruding rod extending along the second direction;

[0017] a connecting rod extending in a vertical direction, wherein the bottom end of the connecting rod is fixedly connected to the protruding rod, and a through hole is formed on the top of the connecting rod, wherein the axial direction of the through hole is the second direction;

[0018] A downward pressure rod, a long through groove is provided on one side wall of the protective cover, the downward pressure rod is slidably inserted into the through hole and the long through groove, and one end of the downward pressure rod is also provided with a handle located outside the protective cover, and a locking part is also detachably installed between the downward pressure rod and the protective cover, and the locking part is used to lock the downward pressure rod to the protective cover.

[0019] Furthermore, in order to better implement the present invention, the locking portion includes:

[0020] First bolt;

[0021] a convex plate, convexly provided on the circumferential side wall of the connecting rod, the convex plate being located outside the protective cover and having a through hole;

[0022] A plurality of screw holes are provided on the side wall of the protective cover, and the plurality of screw holes are arranged in sequence along an arc in the vertical direction;

[0023] The first bolt passes through the through hole and is screwed into one of the screw holes.

[0024] Furthermore, in order to better implement the present invention, the driving assembly includes two driving parts, the two driving parts are respectively connected to the two groups of cutting assemblies, and the two driving parts are respectively used to drive the two groups of cutting assemblies to slide along the second direction.

[0025] Furthermore, in order to better implement the present invention, the driving unit includes:

[0026] A screw rod extending along the second direction, an intermediate beam extending along the first direction is provided in the middle of the base frame, two slide slots extending along the second direction are provided between the intermediate beam and the end of the base frame, one screw rod is rotatably installed in each of the slide slots, one end of the screw rod passes through the end of the base frame and extends outside the base frame, and a handle is also installed at one end of the screw rod;

[0027] A slider, wherein each of the slide grooves is slidably mounted with the slider, the slider is provided with a threaded through hole, the screw rod is screwed into the threaded through hole, and the bottom plate of the cutting assembly is connected to the slider;

[0028] A second bolt is screwed onto the middle beam, and the second bolt is used to press the other end of the screw rod against the middle beam.

[0029] Furthermore, in order to better implement the present invention, a scale extending along the second direction is also provided on the base frame.

[0030] Furthermore, in order to better implement the present invention, the protective cover is also equipped with a dust suppression component, and the dust suppression component is used to reduce the dust generated by the cutting component during cutting.

[0031] Furthermore, in order to better implement the present invention, the dust suppression assembly includes:

[0032] a water tank, mounted on the top wall of the protective cover and located outside the protective cover;

[0033] a water pump having a water inlet and a water outlet, wherein the water inlet is connected to the water tank via an inlet pipe, and the water outlet is connected to the outlet pipe;

[0034] A nozzle is installed on the side wall of the protective cover, the nozzle is directed toward the cutting position of the cutting assembly, and the nozzle is connected to the water outlet pipe.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] The grooving machine for highway inspection and maintenance provided by the present invention includes a chassis, a cutting assembly and a driving assembly. The chassis is equipped with a universal wheel with a built-in brake. The chassis is also connected to a handle. With the help of the handle and the universal wheel, the staff can move the position of the grooving machine as needed, and when moved to a designated position, the grooving machine can be fixed at the designated position with the help of the brake of the universal wheel. The cutting direction of the above-mentioned cutting assembly is a first direction, and the cutting assembly is slidably installed on the chassis along a second direction. There are two groups of cutting assemblies, and the two groups of cutting assemblies are distributed sequentially in the second direction. The second direction is perpendicular to the above-mentioned first direction in a horizontal plane. The above-mentioned driving assembly is installed on the chassis and connected to the above-mentioned cutting assembly. The driving assembly is used to drive the cutting assembly to slide along the second direction to change the spacing between the two groups of cutting assemblies.

[0037] Through the above structure, the slotting machine provided by the present invention can simultaneously cut two slits extending along a first direction on a road with the help of two sets of cutting components. In specific use, the slotting machine is first moved to a specified position so that the cutting components correspond to the portion of the road to be slotted. Then, the width of the slot to be opened is determined. Then, the driving component is used to drive the cutting components to slide along the second direction so that the spacing between the two cutting components corresponds to the width of the slot to be opened. Then, the two cutting components are started at the same time. The two cutting components simultaneously cut the road surface, thereby opening two slits on the road surface. The spacing between the two slits is the width of the slot to be opened. In this way, compared with the slotting machine in the prior art that can only cut one slit on the road at a time, the slotting machine provided by the present invention can cut two slits at a time, and can also adjust the spacing between the two cutting components according to the width of the slot to be opened. Therefore, it is suitable for opening slots of different widths on the road, saving slotting construction time and being more practical. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0039] Figure 1 This is a schematic structural diagram of a grooving machine for highway repair and maintenance provided by an embodiment of the present invention;

[0040] Figure 2 yes Figure 1 A local enlarged view of area A;

[0041] Figure 3Schematic diagram of the installation structure of the dust suppression assembly on the dust cover in an embodiment of the present invention;

[0042] Figure 4 yes Figure 1 The schematic diagram of the structure of the grooving machine for highway inspection and maintenance when it is not equipped with a dust cover and dust suppression components;

[0043] Figure 5 yes Figure 4 A local enlarged view of area B in FIG;

[0044] Figure 6 Schematic diagram of the installation structure of the driving unit on the base frame in an embodiment of the present invention;

[0045] Figure 7 yes Figure 6 A local enlarged view of the C region;

[0046] Figure 8 yes Figure 6 A local enlarged view of the D region;

[0047] Figure 9 is a schematic structural diagram of a cutting assembly in an embodiment of the present invention;

[0048] Figure 10 2 is a schematic structural diagram of a water tank in an embodiment of the present invention.

[0049] In the picture:

[0050] 100-base frame, 110-universal wheel, 120-handle, 121-anti-slip sleeve, 130-middle beam, 140-slide, 150-scale, 200-cutting assembly, 210-base plate, 220-mounting plate, 230-motor, 240-saw blade, 250-rotating shaft, 260-belt drive pair, 300-downward pressure mechanism, 310-side plate, 320-protruding rod, 330-connecting rod, 331-through hole, 340 -Downward pressure rod, 341-handle, 350-convex plate, 351-through hole, 360-first bolt, 400-driving part, 410-screw, 411-handle, 420-slider, 430-second bolt, 500-protective cover, 510-long through slot, 520-screw hole, 600-dust suppression assembly, 610-water tank, 611-plug, 620-water pump, 630-water inlet pipe, 640-water outlet pipe, 650-sprinkler. DETAILED DESCRIPTION

[0051] To make the objectives, technical solutions, and advantages of the present invention more apparent, the technical solutions of the present invention will be described in detail below. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other implementations obtained by those of ordinary skill in the art without inventive effort are within the scope of protection of the present invention.

[0052] Example:

[0053] like Figures 1-10 As shown, the grooving machine for highway repair and maintenance provided in this embodiment includes a chassis 100, a cutting assembly 200 and a driving assembly, wherein:

[0054] The chassis 100 is equipped with universal wheels 110 with built-in brakes. Of course, these universal wheels 110 can also be ordinary rollers. The chassis 100 is also connected to a handle 120 to facilitate the operator's movement of the cutting machine. Preferably, the handle 120 is covered with a non-slip cover made of silicone or foam. With the help of the handle 120 and the universal wheels 110, the operator can move the slotting machine as needed. Once moved to a desired position, the brakes on the universal wheels 110 can be used to secure the slotting machine in place.

[0055] The cutting direction of the cutting assembly 200 is defined as a first direction. The cutting assembly 200 is slidably mounted on the base frame 100 along a second direction, which is perpendicular to the first direction in a horizontal plane. Furthermore, the cutting assembly 200 is provided in two groups, with the two groups of cutting assemblies 200 arranged sequentially in the second direction.

[0056] The drive assembly is mounted on the chassis 100 and connected to the cutting assembly 200. The drive assembly is used to drive the cutting assembly 200 to slide in the second direction to change the distance between the two groups of cutting assemblies 200. It is easy to understand that the drive assembly can also lock the cutting assembly 200 on the chassis 100 so that it does not move in the second direction when cutting the road.

[0057] Through the above structure, the slotting machine provided in this embodiment can simultaneously cut two slits extending along a first direction on a road using two sets of cutting assemblies 200. During specific use, the slotting machine is first moved to a specified position so that the cutting assembly 200 is aligned with the portion of the road to be slotted. The desired width of the slot is then determined. The driving assembly is then used to drive the cutting assembly 200 to slide along a second direction so that the spacing between the two cutting assemblies 200 corresponds to the desired slot width. The two cutting assemblies 200 are then simultaneously activated, and the two cutting assemblies 200 simultaneously cut the road surface, thereby creating two slits on the road surface. The spacing between the two slits corresponds to the desired slot width. In this way, compared with the grooving machine in the prior art which can only cut one slit on the road at one time, the grooving machine provided in this embodiment can cut two slits at one time, and can also adjust the distance between the two cutting components 200 according to the width of the groove to be opened, so that it is suitable for opening grooves of different widths on the road, saving grooving construction time and being more practical.

[0058] Optionally, a protective cover 500 is also installed on the above-mentioned base frame 100. The protective cover 500 is arranged outside the above-mentioned cutting assembly 200 and the above-mentioned driving assembly, thereby protecting the cutting assembly 200 and the driving assembly and reducing the dust flying outward during cutting. The above-mentioned handle 120 is located behind the protective cover 500, and the front side wall of the protective cover 500 is penetrated to form an opening. Through the opening, it is convenient for the staff to view the situation inside the above-mentioned protective cover 500 from the front, that is, to view the cutting situation of the cutting assembly 200. In order to make it more convenient for the staff to view, the above-mentioned protective cover 500 can be a cover made of transparent material, so that the staff can view the situation inside the protective cover 500 from all sides.

[0059] The protective cover 500 is fixed to the base frame 100 by bolts for easy assembly and disassembly.

[0060] Preferably, a dust suppression assembly 600 is also installed on the protective cover 500. The dust suppression assembly 600 is used to reduce dust generated when the cutting assembly 200 cuts the road. This can further reduce dust flying outward during cutting. Optionally, the dust suppression assembly 600 includes a water tank 610, a water pump 620, and a nozzle 650, wherein:

[0061] The water tank 610 is mounted on the top wall of the protective cover 500 and is located outside the protective cover 500. The water tank 610 is provided with a water inlet hole, which is plugged with a plug. When water needs to be added to the water tank 610, the plug is removed. When the water filling is completed, the plug is replaced in the water inlet hole. A viewing window is provided on one side wall of the water tank 610, and a transparent sealing plate is installed in the viewing window. Through the transparent sealing plate, staff can check the water level in the water tank 610.

[0062] The water pump 620 is mounted on the top surface of the water tank 610. The water pump 620 has a water inlet and a water outlet. The water inlet is connected to the water tank 610 via an inlet pipe 630, and the water outlet is connected to an outlet pipe 640. When the water pump 620 is powered on, it pumps water from the water tank 610 through the inlet pipe 630 to the outlet pipe 640. The spray head 650 is mounted on the side wall of the protective cover 500. Specifically, a plurality of the spray heads 650 are mounted on one side wall of the protective cover 500. All of the spray heads 650 are connected to the outlet pipe 640. In this way, the water pump 620 can pump water to the spray heads 650 for spraying. The spray heads 650 are directed toward the cutting position of the cutting assembly 200. In this way, when the cutting assembly 200 is cutting, the spray heads 650 spray water toward the cutting position, thereby reducing the amount of dust flying from the cutting position and achieving a dust suppression effect. It should be noted that there are two water pumps 620, and a plurality of nozzles 650 are mounted on opposite side walls of the protective cover 500. Thus, the two water pumps 620 can pump water to the nozzles 650 on opposite side walls of the protective cover 500. The nozzles 650 mounted on opposite side walls of the protective cover 500 are directed toward the cutting positions of the two cutting assemblies 200. Furthermore, a pipe clamp is provided on the outer wall of the protective cover 500 for securing the water outlet pipe 640 to the outer wall of the protective cover 500. Of course, this embodiment also implicitly includes a power supply for powering the water pumps 620 and the cutting assembly 200.

[0063] Of course, the dust suppression assembly 600 may also include a vacuum cleaner installed on the protective cover 500. When the cutting assembly 200 is cutting, the vacuum cleaner is started to suck away the dust generated by the cutting.

[0064] An optional implementation of this embodiment is as follows: the cutting assembly 200 includes a base plate 210, a motor 230, a saw blade 240, and a belt drive pair 260, wherein:

[0065] The base plate 210 is slidably connected to the base frame 100, allowing the entire cutting assembly 200 to be slidably mounted on the base frame 100. A mounting plate 220 is hingedly connected to one end of the base plate 210 via a hinge axis. The mounting plate 220 is located above the base plate 210 and can rotate about a hinged portion on the base plate 210. The axial direction of the hinge axis is the aforementioned second direction, allowing the mounting plate 220 to rotate within a horizontal plane. The mounting plate 220 is connected to a downward pressing mechanism 300, which is used to drive the mounting plate 220 to rotate within a vertical plane.

[0066] The motor 230 is bolted to the mounting plate 220 and is electrically connected to the power source. The saw blade 240 is rotatably mounted on the mounting plate 220 via a rotating shaft 250. Specifically, a support is provided on the mounting plate 220, and the rotating shaft 250 is rotatably inserted into the support. The saw blade 240 is inserted through one end of the rotating shaft 250. A nut is screwed onto one end of the rotating shaft 250, which presses the saw blade 240 against the rotating shaft 250. The saw blade 240 is located to the side of the mounting plate 220, and the axial direction of the rotating shaft 250 is the second direction. A clearance hole for the saw blade 240 to pass through is provided on the base plate 210. A belt drive pair 260 connects the output shaft of the motor 230 and the rotating shaft 250. The belt drive pair 260 is used to transmit the power output by the motor 230 to the rotating shaft 250.

[0067] When cutting is not required, the pressing mechanism 300 is used to drive the mounting plate 220 to its highest point, and the saw blade 240 is now above the base plate 210. When cutting, the motor 230 is first started to rotate the saw blade 240. The pressing mechanism 300 is then used to drive the mounting plate 220 downward, thereby causing the saw blade 240 to move downward. The saw blade 240 passes through the clearance hole and contacts the road surface, thereby cutting the road surface. Of course, during the initial cutting, the universal wheel 110 is braked to prevent the slotting machine from moving in the first direction. After cutting to a specified depth, the brake can be released, and the operator can push the slotting machine to move in the first direction. After cutting is completed, the motor 230 is turned off and the pressing mechanism 300 is used to drive the mounting plate 220 upward, so that the saw blade 240 returns to the top of the base plate 210.

[0068] Of course, the mounting plate 220 can also be mounted on the base plate 210 via a lifting mechanism, that is, the mounting plate 220 is not rotatably mounted on the base plate 210, but is mounted on the base plate 210 in a manner of lifting up and down.

[0069] An optional implementation of this embodiment is as follows: the pressing mechanism 300 includes a side plate 310, a connecting rod 330, a pressing rod 340 and a locking portion, wherein:

[0070] The side plate 310 is integrally formed or welded to the outer wall of the mounting plate 220. The side plate 310 is provided with a protruding rod 320 extending in the second direction. A connecting rod 330 extends vertically, with the bottom end of the connecting rod 330 integrally formed or welded to the protruding rod 320. Alternatively, a circular hole may be provided at the bottom of the connecting rod 330, with the protruding rod 320 rotatably inserted into the circular hole. A through hole 331 is provided at the top of the connecting rod 330, with the axial direction of the through hole 331 being in the second direction.

[0071] A long through slot 510 is provided on one side wall of the protective cover 500, and the length direction of the long through slot 510 is vertical. The pressing rod 340 is slidably inserted into the through hole 331 and the long through slot 510. In fact, the outer diameter of the pressing rod 340 is smaller than the width of the long through slot 510. If the long through slot 510 is an arc-shaped slot, the outer diameter of the pressing rod 340 can be adapted to the width of the long through slot 510. In addition, one end of the pressing rod 340 is further provided with a handle 341 located outside the protective cover 500. Specifically, the other end of the pressing rod 340 first passes through the long through slot 510, then passes through the through hole 331 on the connecting rod 330 of one of the cutting assemblies 200, and finally passes through the through hole 331 on the connecting rod 330 of the other cutting assembly 200. In this way, the pressing rod 340 can move up and down in the long through slot 510. In actual use, the operator can hold the handle 341 from the side to drive the pressing rod 340 up and down, or directly hold the pressing rod 340 from the front through the opening of the protective cover 500 to drive the pressing rod 340 up and down. When the pressing rod 340 is simultaneously inserted into the through hole 331 on the connecting rod 330 of the two cutting assemblies 200, the pressing rod 340 can drive the mounting plates 220 of the two cutting assemblies 200 to rise and fall synchronously, thereby achieving the effect of the saw blades 240 of the two cutting assemblies 200 cutting the road surface at the same time.

[0072] A locking portion is detachably mounted between the push-down rod 340 and the protective cover 500, and is used to lock the push-down rod 340 to the protective cover 500. With the aid of the locking portion, when cutting is not required, the push-down rod 340 is at its highest point, and at this time, the push-down rod 340 is locked to the protective cover 500 by the locking portion; when cutting is required, the locking portion is unlocked, and when the saw blade 240 cuts to a specified depth, the locking portion is locked again, so that the specified depth is maintained while the slotting machine is moved in the first direction.

[0073] Of course, the above-mentioned downward pressing mechanism 300 can also be an electric telescopic component installed in the protective cover 500, such as an electric telescopic rod. The electric telescopic component has a telescopic shaft, and the telescopic direction of the telescopic shaft is the up and down direction. The free end of the telescopic shaft abuts against the mounting plate 220. In this way, when the telescopic shaft is extended, the mounting plate 220 can be driven to rotate downward. In this case, a reset spring needs to be provided between the mounting plate 220 and the base plate 210. When not cutting, the reset spring pushes the mounting plate 220 upward. When cutting, the telescopic shaft extends to cause the mounting plate 220 to move downward and compress the reset spring. After the cutting is completed, the telescopic shaft retracts, and the compressed reset spring drives the mounting plate 220 to move up to the highest point again.

[0074] An optional implementation of this embodiment is as follows: the locking portion includes a first bolt 360 and a protruding plate 350, wherein:

[0075] The convex plate 350 is protruded on the axial side wall of the connecting rod 330. The convex plate 350 is located outside the protective cover 500, and a through hole 351 is opened on the convex plate 350. A plurality of screw holes 520 are opened on the side wall of the protective cover 500. The positions of the screw holes 520 correspond to the above-mentioned through holes 351. The plurality of screw holes 520 are arranged in sequence along an arc in the vertical direction. The first bolt 360 passes through the through hole 351 and is screwed into one of the screw holes 520.

[0076] When the first bolt 360 is screwed into one of the screw holes 520, the push-down rod 340 is locked to the side wall of the protective cover 500. When the first bolt 360 is unscrewed, the push-down rod 340 is released, and the push-down rod 340 can now move up and down. Moreover, when the first bolt 360 is screwed into different screw holes 520, the degree of up and down movement of the push-down rod 340 varies. It should be noted that this type of locking portion can lock the push-down rod 340 to the side wall of the protective cover 500 or release the push-down rod 340, and its adjustment method is not stepless.

[0077] Of course, the handle 341 at one end of the lower pressure rod 340 can also be eliminated and replaced with a pressure cover that is screwed to one end of the lower pressure rod 340. When locked, the pressure cover is pressed against the outer wall of the protective cover 500, thereby achieving stepless adjustment.

[0078] An alternative implementation of this embodiment is as follows: the drive assembly in this embodiment includes two drive units 400, each connected to the two cutting assemblies 200. The two drive units 400 are used to drive the two cutting assemblies 200 to slide in the second direction. In this way, the two cutting assemblies 200 can be driven and moved independently.

[0079] Of course, the driving assembly can also be connected to both cutting assemblies 200 , so that the driving assembly can drive the two cutting assemblies 200 to move synchronously.

[0080] This embodiment is described by taking the example of two cutting assemblies 200 being driven to move independently by two driving units 400. Optionally, the driving unit 400 includes a screw rod 410, a slider 420 and a second bolt 430, wherein:

[0081] The screw rod 410 extends along the above-mentioned second direction, and an intermediate beam 130 extending along the first direction is provided in the middle of the base frame 100. Two slide grooves 140 extending along the second direction are provided between the intermediate beam 130 and the end of the base frame 100. A screw rod 410 is rotatably installed in each slide groove 140. One end of the screw rod 410 passes through the end of the base frame 100 and extends to the outside of the base frame 100. The other end of the screw rod 410 is rotatably inserted into the above-mentioned intermediate beams. A handle 411 located on the outside of the base frame 100 is also installed at one end of the screw rod 410. With the help of the handle 411, the user can easily rotate the screw rod 410. The slider 420 is slidably mounted in each chute 140. The slider 420 has a threaded through hole 331, and the screw rod 410 is screwed into the threaded through hole 331. The screw rod 410 and the slider 420 form a screw rod 410-nut drive pair. The bottom plate 210 of the cutting assembly 200 is connected to the slider 420. Specifically, the top surface of the slider 420 is provided with a stud, and the bottom plate 210 has a through hole. The stud passes through the through hole and is screwed into the nut, thereby using the nut to press the bottom plate 210 against the top surface of the slider 420. Of course, the bottom plate 210 is connected to the sliders 420 in both chute 140 at the same time, so that the bottom plate 210 spans the above-mentioned base frame 100.

[0082] Thus, when the spacing between the two cutting assemblies 200 needs to be adjusted, the two screw rods 410 are rotated simultaneously, which can drive one cutting assembly 200 to translate in the second direction. The second bolt 430 is screwed onto the middle beam 130. The second bolt 430 is used to press the other end of the screw rod 410 against the middle beam 130. When the second bolt 430 is tightened, the second bolt 430 presses the screw rod 410 against the middle beam 130, thereby preventing the screw rod 410 from rotating. When the second bolt 430 is loosened, the screw rod 410 can rotate. Thus, when the spacing between the two cutting assemblies 200 does not need to be adjusted, the second bolt 430 is tightened.

[0083] like Figure 4 、 Figure 6 as well as Figure 8As shown, in this embodiment, the two cutting assemblies 200 are mounted on either side of the middle beam 130. In practice, the base frame 100 is provided with four chute slots 140. Two of the chute slots 140 are located on one side of the middle beam 130, and the sliders 420 in these two chute slots 140 are used to mount one cutting assembly 200. The other two chute slots 140 are located on the other side of the middle beam 130, and the sliders 420 in these two chute slots 140 are used to mount the other cutting assembly 200. A screw rod 410 is rotatably mounted in each chute 140. There are two second bolts 430, each used to lock the screw rods 410 on either side of the middle beam 130.

[0084] Of course, the screw-nut drive assembly can also be replaced by an electric telescopic rod, which is mounted on the side wall of the protective cover 500 and extends in the second direction, with the free end of the telescopic shaft of the electric telescopic rod connected to the base plate 210. Of course, in this case, a slide can be provided on the base frame 100, and a slide bar can be provided on the bottom surface of the base plate 210, and the slide bar can be slidably mounted on the slide.

[0085] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope of the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A slotting machine for highway repair and maintenance, characterized in that: include: A base frame (100) is provided with a universal wheel (110) with a built-in brake, and the base frame (100) is also connected to a handle (120); A cutting assembly (200) having a cutting direction in a first direction, the cutting assembly (200) being slidably mounted on the base frame (100) along a second direction, and the number of the cutting assemblies (200) being two groups, the two groups of cutting assemblies (200) being arranged in sequence in the second direction, wherein the second direction is perpendicular to the first direction in a horizontal plane; A driving assembly is mounted on the base frame (100) and connected to the cutting assembly (200), and is used to drive the cutting assembly (200) to slide along the second direction to change the distance between the two groups of cutting assemblies (200).

2. The grooving machine for highway repair and maintenance according to claim 1, characterized in that: A protective cover (500) is installed on the base frame (100), and the protective cover (500) is arranged outside the cutting assembly (200) and the driving assembly. The handle (120) is located behind the protective cover (500), and the front end side wall of the protective cover (500) is penetrated to form an opening.

3. The grooving machine for highway repair and maintenance according to claim 2, characterized in that: The cutting assembly (200) comprises: A bottom plate (210) is slidably connected to the bottom frame (100), one end of the bottom plate (210) is hinged with a mounting plate (220), the mounting plate (220) is located above the bottom plate (210), and the mounting plate (220) is connected to a pressing mechanism (300); an electric motor (230) mounted on the mounting plate (220); A saw blade (240) is rotatably mounted on the mounting plate (220) via a rotating shaft (250), the saw blade (240) being located on the side of the mounting plate (220), the axial direction of the rotating shaft (250) being the second direction, and a clearance hole for the saw blade (240) to pass through is formed on the bottom plate (210); A belt transmission pair (260) is connected to the output shaft of the motor (230) and the rotating shaft (250), and the belt transmission pair (260) is used to transmit the power output by the motor (230) to the rotating shaft (250).

4. The grooving machine for highway repair and maintenance according to claim 3, characterized in that: The pressing mechanism (300) comprises: A side plate (310) is fixedly connected to the mounting plate (220), and the side plate (310) is provided with a protruding rod (320) extending along the second direction; A connecting rod (330) extends in a vertical direction, the bottom end of the connecting rod (330) is fixedly connected to the protruding rod (320), a through hole (331) is formed at the top of the connecting rod (330), and the axial direction of the through hole (331) is the second direction; A downward pressing rod (340), a long through slot (510) is provided on one side wall of the protective cover (500), the downward pressing rod (340) is slidably inserted into the through hole (331) and the long through slot (510), and one end of the downward pressing rod (340) is also provided with a handle (341) located outside the protective cover (500), and a locking portion is detachably installed between the downward pressing rod (340) and the protective cover (500), and the locking portion is used to lock the downward pressing rod (340) to the protective cover (500).

5. The grooving machine for highway repair and maintenance according to claim 4, characterized in that: The locking portion comprises: a first bolt (360); A convex plate (350) is convexly provided on the circumferential side wall of the connecting rod (330), the convex plate (350) is located outside the protective cover (500), and the convex plate (350) is provided with a through hole (351); A plurality of screw holes (520) are provided on the side wall of the protective cover (500), and the plurality of screw holes (520) are arranged in sequence along an arc in the vertical direction; The first bolt (360) passes through the through hole (351) and is screwed into one of the screw holes (520).

6. The grooving machine for highway repair and maintenance according to claim 3, characterized in that: The driving assembly comprises two driving parts (400), the two driving parts (400) are respectively connected to the two groups of cutting assemblies (200), and the two driving parts (400) are respectively used to drive the two groups of cutting assemblies (200) to slide along the second direction.

7. The grooving machine for highway repair and maintenance according to claim 6, characterized in that: The driving unit (400) includes: A screw rod (410) extending along the second direction, an intermediate beam (130) extending along the first direction is provided in the middle of the base frame (100), two slide grooves (140) extending along the second direction are provided between the intermediate beam (130) and the end of the base frame (100), one screw rod (410) is rotatably installed in each of the slide grooves (140), one end of the screw rod (410) passes through the end of the base frame (100) and extends to the outside of the base frame (100), and a handle (411) is also installed at one end of the screw rod (410); A slider (420), wherein each of the slide grooves (140) is slidably mounted with the slider (420), the slider (420) is provided with a threaded through hole (331), the screw rod (410) is screwed into the threaded through hole (331), and the bottom plate (210) of the cutting assembly (200) is connected to the slider (420); A second bolt (430) is screwed onto the middle beam (130), and the second bolt (430) is used to press the other end of the screw rod (410) against the middle beam (130).

8. The grooving machine for highway repair and maintenance according to claim 7, characterized in that: A scale (150) extending along the second direction is also provided on the base frame (100).

9. The grooving machine for highway repair and maintenance according to any one of claims 2 to 8, characterized in that: The protective cover (500) is further equipped with a dust suppression assembly (600), and the dust suppression assembly (600) is used to reduce dust generated during cutting by the cutting assembly (200).

10. The grooving machine for highway repair and maintenance according to claim 9, characterized in that: The dust suppression assembly (600) comprises: a water tank (610) mounted on the top wall of the protective cover (500) and located outside the protective cover (500); A water pump (620) having a water inlet end and a water outlet end, wherein the water inlet end is connected to the water tank (610) via a water inlet pipe (630), and the water outlet end is connected to a water outlet pipe (640); A spray head (650) is installed on the side wall of the protective cover (500), the spray head (650) faces the cutting position of the cutting assembly (200), and the spray head (650) is connected to the water outlet pipe (640).

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