Road expansion joint cutting device

Abstract

The utility model discloses a road expansion joint cutting device which comprises a rotating shaft, a first cutting blade, a driving assembly, a linkage shaft, a second cutting blade and a moving assembly, one end of the rotating shaft is fixedly connected with the first cutting blade, the driving assembly is fixedly connected with the rotating shaft to drive the rotating shaft to rotate, the linkage shaft penetrates through the rotating shaft, and the second cutting blade is fixedly connected with the moving assembly. And the linkage shaft is driven by rotation of the rotating shaft to rotate, the end, close to the first cutting blade, of the linkage shaft is fixedly connected with the second cutting blade, and the moving assembly is connected with the linkage shaft so as to drive the linkage shaft to move. The two cutting blades with the adjustable relative distance are arranged, expansion joint width cutting can be carried out by setting the distance between the two blades, it is guaranteed that the expansion joint width meets the process requirement, working steps are reduced, and cutting efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of road expansion joint cutting, in particular to a road expansion joint cutting device. Background Art

[0002] At present, expansion joints are left at the edges of concrete roads. During road construction, a road cutting machine is used to cut and groove the road surface. The machine base of the existing road cutting machine is fixedly connected to the chassis with wheels as a whole. A blade is fixedly arranged on one side of the machine base. A cutting machine of one model can only be equipped with one type of blade. The width requirements of some expansion joints are extremely narrow and only need to be cut once, while the width requirements of some expansion joints are relatively wide and the cutting machine needs to cut back and forth several times. If the existing cutting machine is used to cut a wider expansion joint, during the back-and-forth cutting process, it is necessary to measure the width before cutting the expansion joint again until the cutting of an expansion joint with a certain width is completed. The back-and-forth measurement not only increases the cutting steps and the workload of the staff, but also easily increases the cutting error rate and fails to meet the cutting requirements. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a road expansion joint cutting device. According to the utility model, by setting two cutting blades with adjustable relative distance, the width of the expansion joint can be cut by setting the distance between the two blades, so as to ensure that the width of the expansion joint meets the process requirements, reduce the working steps and improve the cutting efficiency.

[0004] In order to achieve the above utility model purpose, the technical solution adopted by the utility model is as follows:

[0005] According to one aspect of the present utility model, there is provided a road expansion joint cutting device, including a rotating shaft, a first cutting blade, a driving component, a linkage shaft, a second cutting blade and a moving component;

[0006] One end of the rotating shaft is fixedly connected to the first cutting blade;

[0007] The driving component is fixedly connected to the rotating shaft to drive the rotating shaft to rotate;

[0008] The linkage shaft penetrates through the rotating shaft and is slidably connected to the rotating shaft, and the rotation of the rotating shaft drives the linkage shaft to rotate;

[0009] One end of the linkage shaft close to the first cutting blade is fixedly connected to the second cutting blade;

[0010] The moving component is connected to the linkage shaft to drive the linkage shaft to move.

[0011] Preferably, a chute is formed in the rotating shaft, a slider is slidably connected in the chute, and the slider is fixedly connected to the linkage shaft.

[0012] Preferably, the driving assembly includes a driving motor, a driving gear and a driven gear. The output end of the driving motor is fixedly connected to the driving gear, the driven gear is fixedly connected to the rotating shaft, and the driving gear meshes with the driven gear.

[0013] Preferably, the moving assembly includes a cylinder, a push rod and a moving bearing. The output end of the cylinder is fixedly connected to the push rod, the push rod is connected to the moving bearing, and the moving bearing is fixedly connected to one end of the linkage shaft far from the second cutting blade.

[0014] Preferably, it further includes an ultrasonic distance sensor, which is arranged on one end of the rotating shaft close to the first cutting blade, and the ultrasonic distance sensor is fixedly connected to the rotating shaft.

[0015] Preferably, it further includes a protective cover, which covers the first cutting blade and the second cutting blade.

[0016] In summary, due to the adoption of the above technical solutions, the beneficial effects of the present utility model are as follows:

[0017] The present utility model sets a first cutting blade on the rotating shaft, and drives the rotating shaft to rotate by using the driving assembly so that the first cutting blade rotates. At the same time, a linkage shaft connected with the second cutting blade is arranged in the rotating shaft. The linkage shaft can rotate and move relatively, and a moving assembly is set to control the movement of the linkage shaft. Moreover, the linkage shaft can rotate following the rotating shaft. According to the requirement of the width of the expansion joint, by adjusting the distance between the first cutting blade and the second cutting blade, and then controlling the rotation of the first cutting blade and the second cutting blade to perform the cutting work of the expansion joint, there is no need to perform the cutting work back and forth multiple times, and at the same time, the measurement step in the cutting process is avoided, the cutting efficiency is improved, and the width of the cut expansion joint meets the process requirements. Description of the Drawings

[0018] Figure 1 is the overall structural schematic diagram of the present utility model;

[0019] Figure 2 is the structural schematic diagram of the present utility model;

[0020] Figure 3 is the internal structural schematic diagram of the rotating shaft of the present utility model.

[0021] In the attached drawings, 1 is the cutting device housing; 2 is the rotating shaft; 3 is the first cutting blade; 4 is the driving assembly; 5 is the linkage shaft; 6 is the second cutting blade; 7 is the moving assembly; 8 is the chute; 9 is the slider; 10 is the protective cover; 41 is the driving motor; 42 is the driving gear; 43 is the driven gear; 71 is the cylinder; 72 is the push rod; 73 is the moving bearing. Detailed implementation mode

[0022] To make the purpose, technical solutions and advantages of the present utility model clearer and more understandable, the following preferred embodiments are cited with reference to the attached drawings for further detailed description of the present utility model. However, it should be noted that many details listed in the specification are only for enabling the reader to have a thorough understanding of one or more aspects of the utility model, and these aspects of the present utility model can be implemented even without these specific details.

[0023] Please refer to Figures 1 to 3 , the present utility model provides a road expansion joint cutting device, and the technical solutions are as follows:

[0024] As Figures 1-2 shown, a road expansion joint cutting device, the device includes a rotating shaft 2, a first cutting blade 3, a driving assembly 4, a linkage shaft 5, a second cutting blade 6 and a moving assembly 7. The rotating shaft 2 is arranged in the cutting device housing 1 through a fixed seat. There are two fixed seats, and the fixed seats are fixedly connected to the cutting device housing 1. Fixed bearings are fixedly arranged on the fixed seats. The outer side of the fixed bearing is fixedly connected to the fixed seat, and the inner side of the fixed bearing is sleeved on the rotating shaft 2 and fixedly connected to the rotating shaft 2. One end of the rotating shaft 2 penetrates out of the cutting device housing 1, and a first cutting blade 3 is arranged at the end of the rotating shaft 2 that penetrates out of the cutting device housing 1. The rotating shaft 2 is fixedly connected to the first cutting blade 3. A driving assembly 4 is arranged on the rotating shaft 2. The driving assembly 4 includes a driving motor 41, a driving gear 42 and a driven gear 43. The driving motor 41 is fixedly arranged in the cutting device housing 1. A driving gear 42 is fixedly connected to the output end of the driving motor 41. A driven gear 43 is engaged with the driving gear 42. The driven gear 43 is sleeved on the rotating shaft 2 and fixedly connected to the rotating shaft 2. The driving motor 41 is used to drive the driving gear 42 to rotate, the driving gear 42 drives the driven gear 43 to rotate, and the driven gear 43 drives the rotating shaft 2 to rotate, so that the first cutting blade 3 rotates.

[0025] As Figure 3As shown in the figure, a movable through-hole is provided in the rotating shaft 2 along the axial direction. A linkage shaft 5 is arranged in the movable through-hole, and both ends of the linkage shaft 5 penetrate through the movable through-hole. A chute 8 is provided in the movable through-hole along the axial direction of the rotating shaft 2. A slider 9 is arranged in the chute 8, and the slider 9 is slidably connected to the chute 8. One end of the slider 9 away from the chute 8 is fixedly connected to the linkage shaft 5. When the rotating shaft 2 rotates, the slider 9 is stuck in the chute 8 and rotates with the rotating shaft 2. The slider 9 is fixedly connected to the linkage shaft 5, so that the linkage shaft 5 rotates with the rotating shaft 2. A second cutting blade 6 is fixedly connected to one end of the linkage shaft 5 close to the first cutting blade 3. When an axial external force is applied to the linkage shaft 5, the linkage shaft 5 can move relative to the rotating shaft 2, thereby adjusting the distance between the first cutting blade 3 and the second cutting blade 6. The expansion joint is cut by two cutting blades at a certain distance apart. When cutting a wider expansion joint, there is no need to repeatedly cut back and forth, improving the cutting efficiency.

[0026] A moving component 7 is arranged at one end of the linkage shaft 5 away from the second cutting blade 6. The moving component 7 is used to drive the linkage shaft 5 to move in the rotating shaft 2 to adjust the distance between the first cutting blade 3 and the second cutting blade 6. Specifically, the moving component 7 includes a cylinder 71, a push rod 72 and a moving bearing 73. The cylinder 71 is fixedly arranged in the cutting device housing 1. A push rod 72 is arranged at the output end of the cylinder 71, and the push rod 72 is fixedly connected to the output end of the cylinder 71. A moving bearing 73 is arranged at one end of the push rod 72 away from the cylinder 71. The inner side of the moving bearing 73 is fixedly connected to the push rod 72, and the outer side of the moving bearing 73 is fixedly connected to one end of the linkage shaft 5 away from the second cutting blade 6. The cylinder 71 drives the push rod 72 to perform telescopic movement. The push rod 72 drives the moving bearing 73 to move, and the moving bearing 73 then drives the linkage shaft 5 to move, so that the second cutting blade 6 approaches or moves away from the first cutting blade 3, realizing the adjustment of the distance between the first cutting blade 3 and the second cutting blade 6.

[0027] Further, in order to improve the automation degree of the device and the operation efficiency of the device, in this embodiment, a PLC controller is configured, and both the driving motor 41 and the cylinder 71 are electrically connected to the PLC controller. An ultrasonic distance sensor is also configured. The ultrasonic distance sensor is arranged at one end of the rotating shaft 2 close to the first cutting blade 3. The ultrasonic distance sensor is fixedly connected to the rotating shaft 2 and is electrically connected to the PLC controller. The cylinder 71 is controlled to work through the PLC controller, and the cylinder 71 indirectly drives the second cutting blade 6 to move. At the same time, the distance between the first cutting blade 3 and the second cutting blade 6 is detected by the ultrasonic distance sensor. When the distance between the first cutting blade 3 and the second cutting blade 6 reaches the requirement of the expansion joint, the cylinder 71 is closed. At this time, the PLC controller controls the driving motor 41, and the driving motor 41 drives the rotating shaft 2 to rotate. Under the rotation of the rotating shaft 2, the linkage shaft 5 rotates together with the rotating shaft 2, so that the first cutting blade 3 and the second cutting blade 6 rotate simultaneously, and the cutting work of the road expansion joint is carried out simultaneously, improving the cutting efficiency of the expansion joint.

[0028] Furthermore, in order to prevent the first cutting blade 3 and the second cutting blade 6 from accidentally injuring the staff and prevent the fine particles and dust generated during the cutting of the road expansion joint from splashing and causing air pollution and injuring the staff, in this embodiment, a protective cover 10 is further included. The protective cover 10 is arranged above the first cutting blade 3 and the second cutting blade 6. Using the protective cover 10 to cover above the first cutting blade 3 and the second cutting blade 6 not only prevents the first cutting blade 3 and the second cutting blade 6 from accidentally injuring the staff, but also prevents the splashing of dust during cutting and protects the staff.

[0029] The above is only the preferred embodiment of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the principle of the present invention, several improvements and retouches can be made, and these improvements and retouches should also be regarded as the protection scope of the present invention.

Claims

1. A road expansion joint cutting device, characterized in that, It includes a rotating shaft, a first cutting blade, a driving component, a linkage shaft, a second cutting blade and a moving component; One end of the rotating shaft is fixedly connected to the first cutting blade; The driving component is fixedly connected to the rotating shaft to drive the rotating shaft to rotate; The linkage shaft penetrates through the rotating shaft and is slidably connected to the rotating shaft, and the rotation of the rotating shaft drives the linkage shaft to rotate; One end of the linkage shaft close to the first cutting blade is fixedly connected to the second cutting blade; The moving component is connected to the linkage shaft to drive the linkage shaft to move.

2. The road expansion joint cutting device according to claim 1, characterized in that: A chute is formed in the rotating shaft, a slider is slidably connected in the chute, and the slider is fixedly connected to the linkage shaft.

3. The road expansion joint cutting device according to claim 1, characterized in that: The driving component includes a driving motor, a driving gear and a driven gear. The output end of the driving motor is fixedly connected to the driving gear, the driven gear is fixedly connected to the rotating shaft, and the driving gear meshes with the driven gear.

4. The road expansion joint cutting device according to claim 1, characterized in that: The moving component includes a cylinder, a push rod and a moving bearing. The output end of the cylinder is fixedly connected to the push rod, the push rod is connected to the moving bearing, and the moving bearing is fixedly connected to one end of the linkage shaft away from the second cutting blade.

5. A road expansion joint cutting device according to claim 1, characterized in that: It further includes an ultrasonic distance sensor, which is arranged on one end of the rotating shaft close to the first cutting blade, and the ultrasonic distance sensor is fixedly connected to the rotating shaft.

6. The road expansion joint cutting device according to claim 1, characterized in that: It further includes a protective cover, which covers above the first cutting blade and the second cutting blade.

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