Joint cutting device for repairing asphalt road

Abstract

The utility model discloses a joint cutting device for repairing an asphalt road, and relates to the technical field of road repairing joint cutting devices, the joint cutting device comprises a joint cutting machine main body and a protective shell, an inner cavity of the protective shell is rotatably connected with a cutter, a replacement mechanism is arranged in the cutter, and the replacement mechanism is used for rapidly completing installation and disassembly of the cutter. The replacing mechanism comprises a rotating assembly, a clamping assembly, a fixing assembly, a sliding assembly and a limiting assembly. One end of the rotating assembly is connected with a driving assembly, and the driving assembly is used for driving the rotating assembly to rotate. According to the clamping device, the replacement mechanism is arranged, the rotating motor is driven to drive the bidirectional lead screw to rotate, the bidirectional lead screw rotates to drive the sliding block, the connecting rod and the clamping blocks to slide face to face or away from each other, and the clamping blocks sliding face to face or away from each other can quickly fix or unfix the connecting end of the clamping rod; therefore, the purpose of quickly assembling or disassembling the cutter is achieved, and the disassembling and assembling efficiency is effectively improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road repair cutting devices, in particular to a cutting device for asphalt road repair. Background Art

[0002] Asphalt pavement refers to various types of pavement paved with road asphalt materials mixed into mineral materials.

[0003] After the asphalt road is repaired, it is necessary to cut inside to create expansion joints to avoid hollowing and cracking due to thermal expansion and contraction.

[0004] When cutting seams in asphalt pavement construction, a seam cutter is usually used to cut seams on the asphalt pavement. The width of the seams to be cut varies according to different construction requirements. When seams of different widths need to be cut, workers need to replace cutters of different widths. The cutters in the prior art are usually fixed with bolts. When the cutters are installed and fixed, tools (manual wrenches or electric wrenches) are required for disassembly and assembly. In order to further improve the replacement rate of the cutters, a seam cutting device for asphalt road repair is proposed. Utility Model Content

[0005] The utility model aims to provide a slitting device for asphalt road repair in order to further improve the speed of replacing the cutting blade of the slitting machine.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a slitting device for asphalt road repair, comprising a slitting machine body and a protective shell, wherein a cutter is rotatably connected to the inner cavity of the protective shell, and a replacement mechanism is arranged inside the cutter, wherein the replacement mechanism is used to quickly complete the installation and removal of the cutter, and the replacement mechanism comprises a rotating assembly, a clamping assembly, a fixing assembly, a sliding assembly, and a limiting assembly;

[0007] One end of the rotating assembly is connected to a driving assembly, the driving assembly is used to drive the rotating assembly to rotate, and the driving assembly is connected to the main body of the seam cutter in an up-and-down sliding manner;

[0008] The clamping assembly is integrally formed on the end surface of the cutter and is clamped and connected to the end surface of the rotating assembly;

[0009] The fixed component in the driving state drives the two groups of sliding components to slide toward each other or away from each other;

[0010] The sliding component in the sliding state limits or releases the limit of the clamping component in the clamping state.

[0011] As a further solution of the utility model: the rotating assembly includes a rotating disk and a locking block;

[0012] The turntable is rotatably connected to the inner cavity of the protective shell, and the engaging block is arranged on one side of the turntable.

[0013] As a further solution of the utility model: the clamping assembly includes a clamping block and a clamping rod;

[0014] The clamping block is integrally formed on one side of the cutter, the clamping rod is symmetrically arranged on one side of the cutter, a clamping groove matching the clamping block is provided in the clamping block, a sphere is formed at one end of the clamping rod, and the diameter of the sphere is greater than the diameter of the clamping rod.

[0015] As a further solution of the utility model: the fixing assembly includes a fixing component and a rotating component, and the fixing component includes a mounting block, a rotating motor, and a battery compartment;

[0016] The mounting block is fixedly mounted on the outer wall of the turntable, the rotating motor is fixedly mounted on the other end of the mounting block, a battery is installed inside the battery compartment, and the battery compartment is electrically connected to the rotating motor via a switch.

[0017] As a further solution of the utility model: the rotating component includes a bidirectional screw rod, which is rotatably connected to the inner cavity of the turntable, and the output end of the rotating motor passes through the mounting block, the turntable and one end of the bidirectional screw rod is fixedly connected.

[0018] As a further solution of the utility model: the sliding assembly includes a slider, a connecting rod, and a clamping block;

[0019] The two symmetrically arranged sliders are respectively threadedly connected to the positive and negative thread ends of the bidirectional screw rod, and the two end faces of the sliders are respectively in contact with the two end faces of the inner wall of the turntable, the connecting rod is integrally formed on both sides of the outer walls of the two sliders, and the clamping block is symmetrically arranged at one end of the connecting rod.

[0020] As a further solution of the utility model: the limit assembly includes a limit column, a slide groove, and a limit groove;

[0021] The two symmetrically arranged limit posts are fixed to the inner cavity of the turntable, the slide grooves are symmetrically opened at the outer walls of the two limit posts, the limit grooves are symmetrically opened on one side of the turntable and extend to the inner cavity of the limit posts, the engaging rod is engaged and connected to the inner wall of the limit groove, and the engaging ends of the two clamping blocks are formed with annular grooves, and the diameter of the annular grooves is equal to the outer diameter of the engaging rod.

[0022] As a further solution of the utility model: the driving assembly includes a driving motor symmetrically arranged with the protective shell, the output end of the driving motor is connected to the rotating assembly through a connecting shaft, the base of the driving motor is connected to the output end of the electric push rod, and the top of the electric push rod is connected to the main body of the seam cutter through a fixing plate;

[0023] A strip groove for the shaft to move up and down is provided inside the main body of the slitting machine, and the strip groove is slidably connected to the protective shell. A convex block is integrally formed at one end of the protective shell, and the convex block is slidably connected to the strip groove.

[0024] Compared with the prior art, the beneficial effects of the utility model are:

[0025] By setting up a replacement mechanism, a rotating motor is driven to drive the bidirectional lead screw to rotate. The rotation of the bidirectional lead screw drives the slider, the connecting rod, and the clamping block to slide toward or away from each other. The clamping blocks that slide toward or away from each other can quickly fix or release the connecting end of the engaging rod, so as to achieve the purpose of quickly completing the installation or disassembly of the cutting knife, thereby effectively improving the disassembly and assembly efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure of the utility model;

[0027] Figure 2 This is a cross-sectional view of the protective shell structure of the utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the card-mounted assembly of the utility model;

[0029] Figure 4 This is a cross-sectional view of the internal structure of the turntable of the utility model;

[0030] Figure 5 This is a cross-sectional view of the internal structure of the turntable of the utility model from another angle;

[0031] Figure 6 This is a structural schematic diagram from another viewing angle of the present invention.

[0032] In the figure: 1. Slitting machine body; 2. Protective shell; 3. Cutter; 4. Rotating assembly; 401. Turntable; 402. Clamping block; 5. Clamping assembly; 501. Clamping block; 502. Clamping rod; 6. Fixing assembly; 601. Mounting block; 602. Rotating motor; 603. Battery compartment; 604. Bidirectional screw rod; 7. Sliding assembly; 701. Sliding block; 702. Connecting rod; 703. Clamping block; 8. Limiting assembly; 801. Limiting column; 802. Sliding groove; 803. Limiting groove; 9. Electric push rod; 10. Driving motor; 11. Strip groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figure 1 to Figure 6 In the embodiment of the utility model, a seam cutting device for asphalt road repair includes a seam cutting machine body 1, a protective shell 2, a cutter 3 is rotatably connected to the inner cavity of the protective shell 2, a replacement mechanism is arranged in the cutter 3, and the replacement mechanism is used to quickly complete the installation and removal of the cutter 3. The replacement mechanism includes a rotating component 4, a clamping component 5, a fixing component 6, a sliding component 7, and a limiting component 8;

[0035] One end of the rotating assembly 4 is connected to a driving assembly, which is used to drive the rotating assembly 4 to rotate, and the driving assembly is connected to the seam cutting machine body 1 in an up-and-down sliding manner;

[0036] The clamping assembly 5 is integrally formed on the end surface of the cutter 3 and is clamped and connected to the end surface of the rotating assembly 4;

[0037] The fixed component 6 in the driving state drives the two sets of sliding components 7 to slide toward each other or away from each other;

[0038] The sliding assembly 7 in the sliding state limits or releases the limit of the clamping assembly 5 in the clamping state.

[0039] In this embodiment: when the cutter 3 is replaced by using this arrangement, it is only necessary to drive the rotary motor 602 to rotate and drive the bidirectional screw rod 604 to rotate synchronously, and the rotation of the bidirectional screw rod 604 drives the two sliders 701 to slide synchronously away from each other, and the sliding of the two sliders 701 sliding away from each other drives the two connecting rods 702 and the clamping blocks 703 to slide away from each other, and the two clamping blocks 703 sliding away from each other release the clamping of the connecting end of the clamping rod 502, and the worker can directly take out the released clamping rod 502 from the limiting groove 803, thereby taking out the cutter 3 synchronously;

[0040] When a new cutter 3 needs to be installed, it is only necessary to engage the mounting block 501 of the new cutter 3 into the outer wall of the engaging block 402, and engage the engaging rod 502 into the limiting groove 803, and then drive the rotary motor 602 to rotate in the opposite direction, driving the bidirectional screw rod 604 to rotate in the opposite direction, and the bidirectional screw rod 604 rotates in the opposite direction to drive the two sliders 701 to slide toward each other synchronously, and the two sliders 701 sliding toward each other slide and drive the two connecting rods 702 and the clamping blocks 703 to slide toward each other, and the two clamping blocks 703 sliding toward each other clamp the connecting end of the engaging rod 502, thereby completing the limiting of the engaging rod 502 and the installation of the cutter 3;

[0041] This design can quickly complete the installation and disassembly of the cutter 3 by providing a replacement mechanism, which effectively improves the disassembly and assembly efficiency compared to traditional bolt installation.

[0042] Please refer to Figure 2 , the rotating assembly 4 includes a rotating disk 401 and a locking block 402;

[0043] The rotating disk 401 is rotatably connected to the inner cavity of the protective shell 2 , and the engaging block 402 is disposed on one side of the rotating disk 401 .

[0044] In this embodiment, the turntable 401 is connected to the driving device in the slitting machine body 1 . Under the driving force of the driving device, the turntable 401 and the engaging block 402 can be driven to rotate synchronously. The engaging block 402 is used to engage and install the engaging assembly 5 .

[0045] Please refer to Figure 3 , the clamping assembly 5 includes a clamping block 501 and a clamping rod 502;

[0046] The clamping block 501 is integrally formed on one side of the cutter 3, and the clamping rod 502 is symmetrically arranged on one side of the cutter 3. A clamping groove matching the clamping block 402 is opened in the clamping block 501, and a sphere is formed at one end of the clamping rod 502, and the diameter of the sphere is larger than the diameter of the clamping rod 502.

[0047] In this embodiment: the cutter 3 can be installed by engaging the engaging groove of the engaging block 501 with the engaging block 402, and the engaging rod 502 is used to cooperate with the limiting component 8 and the sliding component 7 to fix the cutter 3 (it should be mentioned that the width of the protective shell 2 is greater than the width of the cutter 3, so that the cutter 3 has a certain amount of space to be taken when it is disassembled).

[0048] Please refer to Figure 5 The fixed assembly 6 includes a fixed component and a rotating component, and the fixed component includes a mounting block 601, a rotating motor 602, and a battery compartment 603;

[0049] The mounting block 601 is fixedly mounted on the outer wall of the turntable 401 , the rotating motor 602 is fixedly mounted on the other end of the mounting block 601 , and batteries are installed inside the battery compartment 603 , which is electrically connected to the rotating motor 602 via a switch.

[0050] In this embodiment: the installation block 601 is used to install the rotating motor 602 and the battery compartment 603. The rotating motor 602 is used to drive the rotating parts to rotate, and the battery compartment 603 is used to supply power to the rotating motor 602. When the battery compartment 603 is insufficient in power, it can be removed and replaced.

[0051] Please refer to Figures 4-5 The rotating component includes a bidirectional screw rod 604, which is rotatably connected to the inner cavity of the turntable 401, and the output end of the rotating motor 602 passes through the mounting block 601, the turntable 401 and one end of the bidirectional screw rod 604 is fixedly connected.

[0052] In this embodiment, the bidirectional screw rod 604 can be driven to rotate synchronously by driving the rotary motor 602 , and the rotation of the bidirectional screw rod 604 can drive the two sets of sliding components 7 to slide synchronously to clamp or release the clamping rod 502 .

[0053] Please refer to Figures 4-5 , the sliding assembly 7 includes a slider 701, a connecting rod 702, and a clamping block 703;

[0054] The two symmetrically arranged sliders 701 are respectively threadedly connected to the positive and negative threads of the bidirectional screw rod 604, and the two end faces of the sliders 701 are respectively in contact with the two end faces of the inner wall of the turntable 401, the connecting rod 702 is integrally formed on both sides of the outer walls of the two sliders 701, and the clamping block 703 is symmetrically arranged at one end of the connecting rod 702.

[0055] In this embodiment: because the inner cavity of the slider 701 is provided with a threaded groove matching the bidirectional screw 604, when the bidirectional screw 604 rotates, the two sliders 701 will slide toward or away from each other along the inner cavity of the turntable 401 and the outer wall of the bidirectional screw 604, and the two sliders 701 slide toward or away from each other, driving the two groups of connecting rods 702 and clamping blocks 703 to slide toward or away from each other. The two groups of clamping blocks 703 sliding toward each other clamp and fix the engaging rod 502, and the two groups of clamping blocks 703 sliding away from each other release the clamping fixation of the engaging rod 502.

[0056] Please refer to Figure 4 The limiting assembly 8 includes a limiting column 801, a slide groove 802, and a limiting groove 803;

[0057] Two symmetrically arranged limit posts 801 are fixed to the inner cavity of the turntable 401, the slide grooves 802 are symmetrically opened on the outer walls of the two limit posts 801, the limit grooves 803 are symmetrically opened on one side of the turntable 401 and extend to the inner cavity of the limit posts 801, the engaging rod 502 is engaged and connected to the inner wall of the limiting groove 803, and the engaging ends of the two clamping blocks 703 are formed with an annular groove, and the diameter of the annular groove is equal to the outer diameter of the engaging rod 502.

[0058] In this embodiment: the locking rod 502 is inserted into the inner wall of the limiting groove 803, and the two sets of clamping blocks 703 sliding toward each other pass through the sliding groove 802 to lock and limit the connecting end of the locking rod, thereby completing the fixation of the locking rod 502 and the cutter 3, and the two sets of clamping blocks 703 sliding away from each other slide away from the sliding groove 802 to release the locking and limiting of the connecting end of the locking rod 502, thereby releasing the fixation of the locking rod 502 and the cutter 3.

[0059] Please refer to Figure 6 : The driving assembly includes a driving motor 10 symmetrically arranged with the protective shell 2, the output end of the driving motor 10 is connected to the rotating assembly 4 through a connecting shaft, the base of the driving motor 10 is connected to the output end of the electric push rod 9, and the top of the electric push rod 9 is connected to the main body 1 of the seam cutting machine through a fixing plate;

[0060] A strip groove 11 is provided inside the main body 1 of the slitting machine for the shaft to move up and down. The strip groove 11 is slidably connected to the protective shell 2 . A convex block is integrally formed at one end of the protective shell 2 , and the convex block is slidably connected to the strip groove 11 .

[0061] In the embodiment: when using the cutter 3, first start the drive motor 10, the drive motor 10 adjusts the cutter 3 to rotate at high speed through the connecting shaft, and then start the electric push rod 9 to extend, the output end of the electric push rod 8 drives the drive motor 10, the connecting shaft, the cutter 3 and the protective shell 2 to move downward, the cutter contacts the asphalt ground, and the asphalt ground is rotated and cut until it is cut to a predetermined depth, then stop the electric push rod 9, push the trolley to move along the crack track of the asphalt road, effectively cut the asphalt road surface, and prevent the occurrence of road hollowing and cracking due to thermal expansion and contraction.

[0062] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A seam cutting device for asphalt road repair, comprising a seam cutting machine body (1) and a protective shell (2), wherein a cutter (3) is rotatably connected to the inner cavity of the protective shell (2), characterized in that: The cutter (3) is provided with a replacement mechanism, which is used to quickly complete the installation and removal of the cutter (3), and the replacement mechanism comprises a rotating assembly (4), a clamping assembly (5), a fixing assembly (6), a sliding assembly (7), and a limiting assembly (8); One end of the rotating assembly (4) is connected to a driving assembly, the driving assembly is used to drive the rotating assembly (4) to rotate, and the driving assembly is connected to the seam cutting machine body (1) in an up-and-down sliding manner; The clamping assembly (5) is integrally formed on the end surface of the cutter (3) and is clamped and connected to the end surface of the rotating assembly (4); The fixed component (6) in the driving state drives the two groups of sliding components (7) to slide towards each other or away from each other; The sliding component (7) in the sliding state limits or releases the limit of the clamping component (5) in the clamping state.

2. The asphalt road repair cutting device according to claim 1, characterized in that: The rotating assembly (4) comprises a rotating disk (401) and a locking block (402); The rotating disk (401) is rotatably connected to the inner cavity of the protective shell (2), and the engaging block (402) is arranged on one side of the rotating disk (401).

3. The asphalt road repair cutting device according to claim 2, characterized in that: The clamping assembly (5) comprises a clamping block (501) and a clamping rod (502); The clamping block (501) is integrally formed on one side of the cutter (3); the clamping rod (502) is symmetrically arranged on one side of the cutter (3); a clamping groove matching the clamping block (402) is provided in the clamping block (501); a sphere is formed at one end of the clamping rod (502); and the diameter of the sphere is greater than the diameter of the clamping rod (502).

4. The asphalt road repair cutting device according to claim 3, characterized in that: The fixing assembly (6) comprises a fixing component and a rotating component, wherein the fixing component comprises a mounting block (601), a rotating motor (602), and a battery compartment (603); The mounting block (601) is fixedly mounted on the outer wall of the turntable (401), the rotating motor (602) is fixedly mounted on the other end of the mounting block (601), a battery is installed inside the battery compartment (603), and the battery compartment (603) is electrically connected to the rotating motor (602) via a switch.

5. The asphalt road repair cutting device according to claim 4, characterized in that: The rotating component comprises a bidirectional screw rod (604), which is rotatably connected to the inner cavity of the rotating disk (401), and the output end of the rotating motor (602) passes through the mounting block (601), the rotating disk (401) and is fixedly connected to one end of the bidirectional screw rod (604).

6. The asphalt road repair cutting device according to claim 5, characterized in that: The sliding assembly (7) comprises a sliding block (701), a connecting rod (702), and a clamping block (703); The two symmetrically arranged sliders (701) are respectively threadedly connected to the positive and negative thread ends of the bidirectional screw rod (604), and the two end faces of the sliders (701) are respectively in contact with the two end faces of the inner wall of the turntable (401), the connecting rod (702) is integrally formed on both sides of the outer walls of the two sliders (701), and the clamping block (703) is symmetrically arranged at one end of the connecting rod (702).

7. The asphalt road repair cutting device according to claim 6, characterized in that: The limiting assembly (8) comprises a limiting column (801), a slide groove (802), and a limiting groove (803); The two symmetrically arranged limiting posts (801) are fixed to the inner cavity of the rotating disk (401); the sliding grooves (802) are symmetrically opened at the outer walls of the two limiting posts (801); the limiting grooves (803) are symmetrically opened at one side of the rotating disk (401) and extend to the inner cavity of the limiting posts (801); the engaging rod (502) is engaged with the inner wall of the limiting groove (803); the engaging ends of the two clamping blocks (703) are formed with an annular groove, and the diameter of the annular groove is equal to the outer diameter of the engaging rod (502).

8. The asphalt road repair cutting device according to claim 1, characterized in that: The driving assembly comprises a driving motor (10) symmetrically arranged with respect to the protective shell (2); the output end of the driving motor (10) is connected to the rotating assembly (4) via a connecting shaft; the base of the driving motor (10) is connected to the output end of the electric push rod (9); and the top of the electric push rod (9) is connected to the main body of the slitting machine (1) via a fixing plate; A strip groove (11) is provided inside the main body (1) of the slitting machine for the shaft to move up and down, the strip groove (11) is slidably connected to the protective shell (2), and a convex block is integrally formed at one end of the protective shell (2), and the convex block is slidably connected to the strip groove (11).

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