Broken pavement cutting device for road maintenance

Abstract

The utility model particularly relates to a damaged pavement cutting device for road maintenance, which comprises a shell, an inner barrel is fixedly mounted in the shell, a hydraulic cylinder is fixedly mounted at the top of an inner cavity of the inner barrel, a protective shell is fixedly mounted at the lower end of the hydraulic cylinder through an output shaft of the hydraulic cylinder, and a driving motor is fixedly mounted in the protective shell. A connecting plate is fixedly installed at the lower end of the driving motor through an output shaft of the driving motor, a first rotating disc and a second rotating disc are installed at the lower end of the connecting plate in an inserted mode, a plurality of blades are slidably installed on the lower side of the second rotating disc, and a first limiting sliding block and a second limiting sliding block are fixedly installed at the upper end of each blade in sequence; first limiting sliding grooves in sliding connection with the first limiting sliding blocks are formed in the lower end of the second rotating disc, second limiting sliding grooves in sliding connection with the second limiting sliding blocks are formed in the lower end of the first rotating disc, the positions of the blades can be adjusted, and the effect of adjusting the cutting radius is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field related to road maintenance, in particular to a damaged road surface cutting device for road maintenance. Background Art

[0002] In order to improve the smoothness of the road surface, enhance the stability of the road structure, improve driving safety, and extend the service life of the road, a cutting device is usually used to remove the damaged road surface during the road maintenance process. For example, the prior art patent document with publication number CN214089399U provides a damaged road surface cutting device for road maintenance; the device can adjust the blade height through a motor and a hydraulic cylinder, and drive the blade to rotate, and the rotating blade can cut the road surface;

[0003] However, the blade at the lower end of the mounting plate of the device is fixed, which results in that when the blade position needs to be adjusted according to the damaged area of ​​the road surface, this will obviously limit the performance of the device and there are major defects. For this reason, we propose a damaged road surface cutting device for road maintenance. Utility Model Content

[0004] The purpose of the present utility model is to provide a damaged road surface cutting device for road maintenance, so as to solve the problems raised in the above-mentioned background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a damaged road surface cutting device for road maintenance, comprising an outer shell, an inner cylinder is fixedly installed in the outer shell, a hydraulic cylinder is fixedly installed on the top of the inner cavity of the inner cylinder, a protective shell is fixedly installed at the lower end of the hydraulic cylinder through its output shaft, a driving motor is fixedly installed in the protective shell, a connecting plate is fixedly installed at the lower end of the driving motor through its output shaft, a first rotating disk and a second rotating disk are plugged into and installed at the lower end of the connecting plate, a plurality of blades are slidably installed on the lower side of the second rotating disk, a first limiting slider and a second limiting slider are fixedly installed on the upper end of each of the blades in turn, a first limiting slide groove is provided at the lower end of the second rotating disk for sliding connection with each first limiting slider, and a second limiting slide groove is provided at the lower end of the first rotating disk for sliding connection with each second limiting slider.

[0006] Preferably, a first positioning tooth groove is opened in the middle of the first rotating disk, a second positioning tooth groove is opened in the middle of the second rotating disk, and a positioning tooth block is fixedly installed at the lower end of the connecting plate and is plugged into the first positioning tooth groove and the second positioning tooth groove.

[0007] Preferably, a limiting rotation cavity communicating with the second positioning tooth groove is provided at the lower end of the second rotating disk, a threaded curved groove is provided on the periphery of the positioning tooth block, and a threaded ring threadedly connected to the threaded curved groove is rotatably installed in the limiting rotation cavity.

[0008] Preferably, a shock-absorbing pad is fixedly installed at the lower end of the shell, a positioning plate is fixedly installed at the periphery of the shell, a movable plate is fixedly installed on the lower side of the positioning plate through a hydraulic push rod, and a roller is fixedly installed at the lower end of the movable plate.

[0009] Preferably, the inner wall of the outer shell is loosely matched with the outer periphery of the inner tube, and form a second through cavity, an installation cavity, a third through cavity and a first through cavity in sequence from top to bottom. The third through cavity and the first through cavity are divided from each other by a partition. A conduit is fixedly installed between the second through cavity and the third through cavity, a filter is inserted and installed in the installation cavity, a ventilation pipe that is interconnected with the third through cavity is fixedly installed on the outer end of the outer shell, and a fan is fixedly installed in the ventilation pipe.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] This damaged pavement cutting device for road maintenance uses a sliding connection between the first limiting slider and the first limiting slot and between the second limiting slot and the second limiting slider, so that the relatively rotating first rotating disk and the second rotating disk can drive each blade to shrink inward or spread outward. Compared with the original device, this device can adjust the position of each blade, thereby adjusting the cutting area of ​​the blade.

[0012] The device for cutting damaged pavement for road maintenance is provided with a fan and a filter. When cutting damaged pavement, dust raised can be collected through a second cavity, an installation cavity, a third cavity, a first cavity and a conduit, thereby avoiding damage to the surrounding environment and protecting workers and pedestrians. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the external structure of the shell of the utility model;

[0014] Figure 2 This is a schematic diagram of the internal structure of the housing and the drive motor of the utility model;

[0015] Figure 3 This is a schematic diagram of the internal split structure of the rotating disk and the blade of the utility model;

[0016] Figure 4 This is a schematic diagram of the internal split structure of the threaded ring and the positioning gear block of the utility model;

[0017] Figure 5 This is a schematic diagram of the internal structure of the outer shell and inner cylinder of the present invention.

[0018] In the picture:

[0019] 1. Outer shell; 11. Inner cylinder; 12. Hydraulic cylinder; 13. Protective shell; 14. Drive motor;

[0020] 2. First rotating disk; 21. Second rotating disk; 22. Blade; 23. First limiting slide; 231. First limiting slider;

[0021] 24. Second limiting chute; 241. Second limiting slider;

[0022] 25. Connecting plate; 251. Positioning tooth block; 252. First positioning tooth groove; 253. Second positioning tooth groove; 254. Positioning rotation chamber; 255. Threaded curved groove; 256. Threaded ring;

[0023] 3. Positioning plate; 31. Movable plate; 32. Hydraulic push rod; 33. Roller; 34. Shock pad;

[0024] 4. Ventilation duct; 41. Fan; 42. First cavity; 43. Conduit; 44. Second cavity; 45. Installation cavity; 46. Third cavity; 47. Filter. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only 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 making creative efforts are within the scope of protection of the present invention.

[0026] See also Figure 1-5 The utility model provides a technical solution: a damaged pavement cutting device for road maintenance, comprising an outer shell 1, an inner cylinder 11 is fixedly installed in the outer shell 1, a hydraulic cylinder 12 is fixedly installed on the top of the inner cavity of the inner cylinder 11, a protective shell 13 is fixedly installed at the lower end of the hydraulic cylinder 12 through its output shaft, a driving motor 14 is fixedly installed in the protective shell 13, a connecting plate 25 is fixedly installed at the lower end of the driving motor 14 through its output shaft, a first rotating disk 2 and a second rotating disk 21 are plugged and installed at the lower end of the connecting plate 25, a plurality of blades 22 are slidably installed on the lower side of the second rotating disk 21, a first limiting slider 231 and a second limiting slider 241 are fixedly installed on the upper end of each blade 22 in sequence, a first limiting slide 23 is provided at the lower end of the second rotating disk 21 with each first limiting slider 231 being slidably connected, and a second limiting slide 24 is provided at the lower end of the first rotating disk 2 with each second limiting slider 241 being slidably connected.

[0027] Working principle: When the position of each blade 22 needs to be adjusted, one hand positions the first rotating disk 2 and the other hand rotates the second rotating disk 21. The first rotating disk 2 is connected to the first limiting slide block 231 and the first limiting slide groove 23 through the sliding connection between the first limiting slide block 23. Under the restriction of the movement direction of each blade 22, the rotating second rotating disk 21 can drive each blade 22 to retract inward or expand outward through the sliding connection between the second limiting slide groove 24 and the second limiting slide block 241, thereby achieving the effect of adjusting the cutting area of ​​the blade 22;

[0028] Then, through the connection between the first rotating disk 2 and the second rotating disk 21 and the connecting plate 25, the blade 22 can be installed at the lower end of the output shaft of the drive motor 14. By starting the hydraulic cylinder 12, the height of the blade 22 can be adjusted. By starting the drive motor 14, the blade 22 can be driven to rotate through its output shaft to achieve the effect of cutting the damaged road surface.

[0029] As a further description of the above technical solution: a first positioning tooth groove 252 is opened in the middle of the first rotating disk 2, a second positioning tooth groove 253 is opened in the middle of the second rotating disk 21, and a positioning tooth block 251 which is plugged into the first positioning tooth groove 252 and the second positioning tooth groove 253 is fixedly installed at the lower end of the connecting plate 25; a limiting rotation cavity 254 which is interconnected with the second positioning tooth groove 253 is opened at the lower end of the second rotating disk 21, a threaded curved groove 255 is opened on the periphery of the positioning tooth block 251, and a threaded ring 256 which is threadedly connected to the threaded curved groove 255 is rotatably installed in the limiting rotation cavity 254.

[0030] Specifically, after the first rotating disk 2 and the second rotating disk 21 are rotated relative to each other and the position of the blade 22 is adjusted, the first rotating disk 2 and the second rotating disk 21 can be installed on the lower end of the connecting plate 25 by plugging the positioning tooth block 251 into the first positioning tooth groove 252 and the second positioning tooth groove 253.

[0031] When the threaded ring 256 contacts the positioning tooth block 251, the threaded ring 256 is rotated, and the second rotating disk 21 can be driven to move through the threaded connection between it and the threaded curved groove 255, and cooperate with the connecting plate 25 to achieve the effect of positioning the first rotating disk 2 and the second rotating disk 21.

[0032] As a further description of the above technical solution: a shock-absorbing pad 34 is fixedly installed at the lower end of the shell 1, a positioning plate 3 is fixedly installed on the outer periphery of the shell 1, a movable plate 31 is fixedly installed on the lower side of the positioning plate 3 through a hydraulic push rod 32, and a roller 33 is fixedly installed at the lower end of the movable plate 31.

[0033] Specifically, a roller 33 is provided to facilitate the movement of the device. By starting the hydraulic push rod 32, the height of the movable plate 31 can be adjusted so that the lower end of the shell 1 contacts the road surface, thereby achieving the effect of positioning the shell 1. A shock-absorbing pad 34 is provided at the lower end of the shell 1 to reduce the vibration of the device during the cutting process.

[0034] As a further description of the above technical solution: the inner wall of the outer shell 1 is clearance-matched with the outer periphery of the inner tube 11, and a second through cavity 44, an installation cavity 45, a third through cavity 46 and a first through cavity 42 are formed in sequence from top to bottom. The third through cavity 46 and the first through cavity 42 are divided from each other by a partition. A conduit 43 is fixedly installed between the second through cavity 44 and the third through cavity 46, a filter screen 47 is inserted and installed in the installation cavity 45, and a ventilation pipe 4 is fixedly installed at the outer end of the outer shell 1 and is interconnected with the third through cavity 46, and a fan 41 is fixedly installed in the ventilation pipe 4.

[0035] Specifically, during the cutting process, the fan 41 is started, and the air can be led out through the first cavity 42, the duct 43, the installation cavity 45, the third cavity 46 and the ventilation pipe 4 in sequence, and a filter 47 is set in the installation cavity 45. Impurities in the air can be filtered through the filter 47.

[0036] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A damaged road surface cutting device for road maintenance, comprising a housing (1), characterized in that: An inner cylinder (11) is fixedly installed in the outer shell (1), a hydraulic cylinder (12) is fixedly installed on the top of the inner cavity of the inner cylinder (11), a protective shell (13) is fixedly installed on the lower end of the hydraulic cylinder (12) through its output shaft, a driving motor (14) is fixedly installed in the protective shell (13), a connecting plate (25) is fixedly installed on the lower end of the driving motor (14) through its output shaft, a first rotating disk (2) and a second rotating disk (21) are plugged and installed on the lower end of the connecting plate (25), a plurality of blades (22) are slidably installed on the lower side of the second rotating disk (21), and a first limiting slide block (231) and a second limiting slide block (241) are fixedly installed on the upper end of each blade (22) in sequence, a first limiting slide groove (23) is provided at the lower end of the second rotating disk (21) for sliding connection with each first limiting slide block (231), and a second limiting slide groove (24) is provided at the lower end of the first rotating disk (2) for sliding connection with each second limiting slide block (241).

2. The damaged pavement cutting device for road maintenance according to claim 1, characterized in that: A first positioning tooth groove (252) is provided in the middle of the first rotating disk (2), a second positioning tooth groove (253) is provided in the middle of the second rotating disk (21), and a positioning tooth block (251) is fixedly mounted on the lower end of the connecting plate (25) and plug-connected to the first positioning tooth groove (252) and the second positioning tooth groove (253).

3. The damaged road surface cutting device for road maintenance according to claim 2, characterized in that: A limiting rotation cavity (254) communicating with the second positioning tooth groove (253) is provided at the lower end of the second rotating disk (21); a threaded curved groove (255) is provided on the periphery of the positioning tooth block (251); and a threaded ring (256) threadedly connected to the threaded curved groove (255) is rotatably installed in the limiting rotation cavity (254).

4. The damaged road surface cutting device for road maintenance according to claim 1, characterized in that: A shock-absorbing pad (34) is fixedly mounted on the lower end of the housing (1), a positioning plate (3) is fixedly mounted on the periphery of the housing (1), a movable plate (31) is fixedly mounted on the lower side of the positioning plate (3) via a hydraulic push rod (32), and a roller (33) is fixedly mounted on the lower end of the movable plate (31).

5. The damaged road surface cutting device for road maintenance according to claim 1, characterized in that: The inner wall of the shell (1) is clearance-matched with the outer periphery of the inner tube (11), and a second through cavity (44), a mounting cavity (45), a third through cavity (46) and a first through cavity (42) are sequentially formed from top to bottom. The third through cavity (46) and the first through cavity (42) are separated from each other by a partition. A conduit (43) is fixedly installed between the second through cavity (44) and the third through cavity (46). A filter screen (47) is inserted and installed in the mounting cavity (45). A ventilation pipe (4) communicating with the third through cavity (46) is fixedly installed at the outer end of the shell (1), and a fan (41) is fixedly installed in the ventilation pipe (4).

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