Joint cutter for road construction
By designing a cleaning mechanism and automatic cleaning system on the cutting machine, the problem of difficult-to-clean dust inside the protective cover was solved, achieving continuous cleaning of the inner wall of the protective cover and extending the service life of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HUBEI HEMISPHERE CONSTRUCTION ENGINEERING CO LTD
- Filing Date
- 2025-04-24
- Publication Date
- 2026-06-16
AI Technical Summary
Dust easily accumulates inside the protective cover of existing slitting machines, making them difficult to clean and affecting the use and lifespan of the equipment.
A slit cutting machine with a cleaning mechanism was designed. The cleaning mechanism consists of a rotating disc, a rotating shaft, a connecting rod, a cleaning brush, and a docking mechanism. Automatic cleaning is achieved through a water pump and a water tank, and the guide channel and nozzles ensure the uniform distribution of cleaning water.
It achieves continuous and efficient cleaning of the inner wall of the protective cover, avoids dust accumulation, improves the reliability and service life of the equipment, and reduces the consumption of manpower and time.
Smart Images
Figure CN224363181U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of road construction technology, and in particular relates to a cutting machine for road construction. Background Technology
[0002] After the concrete road construction is completed, gaps need to be cut in the road to prevent the concrete pavement from cracking due to thermal expansion and contraction caused by temperature. Therefore, a gap needs to be cut at intervals.
[0003] Dust is generated when cutting roads. The dust easily accumulates inside the protective cover outside the cutting blade. The inside of the protective cover is difficult to clean. When there is a lot of dust inside the protective cover and it clumps together, it affects the use of the cutting machine and increases the burden on the equipment. Utility Model Content
[0004] This utility model provides a road construction joint cutting machine, which aims to solve the problem mentioned in the background art that the protective cover outside the cutting blade of the currently used joint cutting machine is prone to dust accumulation, which is difficult to clean and affects the use and life of the equipment.
[0005] To solve the above problems, this utility model is implemented as follows: a road construction cutting machine, comprising: a trolley with a mounting cover fixedly installed; a hydraulic rod fixedly installed on the mounting cover; a movable groove formed on the mounting cover; a support frame fixedly installed on the output shaft of the hydraulic rod, the support frame extending into the mounting cover through the movable groove; a fixed cover for mounting a drive motor fixedly installed on the support frame; a protective cover covering the cutting blade fixedly installed on the fixed cover and configured as a semi-circle; and a cleaning mechanism for cleaning dust on the inner wall of the protective cover.
[0006] Preferably, a fixing block is fixedly installed inside the mounting cover, the fixing block is positioned above the movable groove, and a guide rod is fixedly installed between the fixing block and the trolley, the guide rod being slidably connected to the support frame.
[0007] Preferably, the cleaning mechanism includes a rotating disk, a rotating shaft, a connecting rod, a limiting ring, a cleaning brush, and a docking mechanism. The rotating disk is rotatably mounted on the protective cover. The rotating shaft, on which a cutting blade is fixedly mounted, is fixedly mounted on the rotating disk. The other end of the rotating shaft is fixedly connected to the output shaft of the drive motor. The connecting rod is slidably sleeved on the rotating shaft through the limiting ring. One end of the cleaning brush, used for cleaning dust, is fixedly mounted on the connecting rod, and the other end contacts the inner wall of the protective cover. The docking mechanism is disposed on the rotating disk and is used to adjust the connecting rod to rotate synchronously with the rotating shaft.
[0008] Preferably, the docking mechanism includes a locking block, a screw, and a docking frame. The locking block is fixedly installed on the side wall where the connecting rod is connected to the rotating shaft and is arranged symmetrically along the axis. The screw is rotatably installed on the outside of the rotating disk. The docking frame is threadedly connected to the screw. The docking frame is U-shaped and its two ends slide through the side wall of the protective cover. The two ends of the docking frame are correspondingly arranged with the locking block.
[0009] Preferably, a fixed frame is fixedly installed on the protective cover, and a movable plate is slidably installed on the fixed frame, the movable plate passing through the fixed frame and contacting the cleaning brush.
[0010] Preferably, a water tank is fixedly installed inside the mounting cover, an inlet pipe is fixedly installed on the top of the water tank and extends to the outside of the mounting cover, a water pump is fixedly installed inside the mounting cover, an inlet pipe is fixedly installed at the inlet end of the water pump and extends into the water tank, and a drain pipe is fixedly installed at the outlet end of the water pump and extends through the mounting cover into the protective cover.
[0011] Preferably, a flow guide groove is provided on the inner wall of the protective cover, and a nozzle is fixedly installed at one end of the drain pipe connected to the protective cover, with the nozzle extending into the flow guide groove.
[0012] Compared with related technologies, the road construction joint cutting machine provided by this utility model has the following beneficial effects:
[0013] Compared with existing technologies, the road construction cutting machine provided in this solution, through the inclusion of a cleaning mechanism, can continuously and efficiently clean the inner wall of the protective cover during or after cutting, effectively removing dust and impurities and preventing excessive dust buildup inside the protective cover from affecting the normal operation of the cutting machine. The docking mechanism design allows the cleaning brush to rotate synchronously with the rotating shaft and cutting blade when needed, achieving continuous cleaning of the inner wall of the protective cover. Attached Figure Description
[0014] Figure 1 This is a front sectional view of a road construction joint cutting machine provided by this utility model;
[0015] Figure 2 This is a side sectional view of a road construction joint cutting machine provided by this utility model;
[0016] Figure 3 for Figure 1 An enlarged structural diagram of part A shown in the figure;
[0017] Figure 4 for Figure 2 The diagram shows an enlarged view of part B.
[0018] Reference numerals: 1. Trolley; 2. Mounting cover; 3. Hydraulic rod; 4. Movable groove; 5. Support frame; 6. Fixed cover; 7. Protective cover; 8. Rotary disc; 9. Rotating shaft; 10. Connecting rod; 11. Limiting ring; 12. Cleaning brush; 13. Locking block; 14. Screw; 15. Connecting frame; 16. Fixed frame; 17. Movable plate; 18. Drive motor; 19. Cutting blade; 20. Water tank; 21. Water pump; 22. Inlet pipe; 23. Drain pipe; 24. Guide groove; 25. Guide rod. Detailed Implementation
[0019] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings are used to distinguish different objects, not to describe a particular order; the terms "inner," "outer," "left," and "right" indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.
[0020] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.
[0021] This utility model embodiment provides a road construction joint cutting machine, such as... Figure 1-4As shown, the road construction cutting machine includes: a trolley 1 with a mounting cover 2 fixedly installed; a hydraulic rod 3 fixedly installed on the mounting cover 2; a movable groove 4 formed on the mounting cover 2; a support frame 5 fixedly installed on the output shaft of the hydraulic rod 3, and extending into the mounting cover 2 through the movable groove 4; a fixed cover 6 for mounting a drive motor 18 fixedly installed on the support frame 5; a protective cover 7 covering the cutting blade 19 fixedly installed on the fixed cover 6 and configured as a semi-circle; and a cleaning mechanism for cleaning dust on the inner wall of the protective cover 7.
[0022] In this embodiment, the trolley 1 serves as the mobile platform for the entire cutting machine, facilitating movement and operation at the road construction site. The mounting cover 2 provides a base for other components, ensuring the stability and structural integrity of the entire cutting machine. The hydraulic rod 3, through its telescopic function, drives the support frame 5 and the cutting blade 19 to move up and down, enabling the cutting operation of the road concrete. The movable groove 4 allows the support frame 5 to slide within the mounting cover 2 under the drive of the hydraulic rod 3, ensuring the stability of the cutting blade 19. The support frame 5 supports and fixes the aforementioned fixed cover 6 and the cutting blade 19, ensuring the stability and accuracy of the cutting process. The fixed cover 6 is used to install the drive motor 18, providing a power source for the cutting blade 19 and protecting the drive motor 18 from external environmental interference. The protective cover 7 effectively prevents dust from splashing during the cutting process, protecting the safety of operators and the surrounding environment. The cleaning mechanism is used to clean the dust accumulated on the inner wall of the protective cover 7, preventing excessive dust buildup inside the cover 7 from affecting the normal operation of the cutting machine and increasing the equipment load, thus improving the reliability and service life of the equipment.
[0023] In a further preferred embodiment of this utility model, a fixing block is fixedly installed inside the mounting cover 2, the fixing block is disposed above the movable groove 4, and a guide rod 25 is fixedly installed between the fixing block and the trolley 1, the guide rod 25 being slidably connected to the support frame 5.
[0024] In this embodiment, the fixing block serves to support and fix the guide rod, ensuring that the guide rod can be stably installed inside the mounting cover 2. The guide rod 25 is fixedly installed between the fixing block and the trolley 1, forming a stable guiding structure. The guide rod 25 is slidably connected to the support frame 5, which means that when the hydraulic rod 3 drives the support frame 5 to move up and down, the support frame 5 will slide along the guide rod 25. The guide rod 25 provides a stable moving path for the support frame 5, preventing it from deviating or shaking during movement, thereby ensuring that the cutting blade 19 can be accurately aligned with the cutting position. The guide rod 25 not only serves a guiding function, but also provides additional support force for the support frame 5. Especially during the cutting process, when the cutting blade 19 encounters greater resistance, the guide rod 25 can ensure that the support frame 5 will not deform or be damaged due to excessive force. Due to the presence of the guide rod 25, the movement of the support frame 5 is more stable and smooth, reducing wear caused by friction and collision, thereby extending the service life of the entire cutting machine.
[0025] In a further preferred embodiment of this utility model, the cleaning mechanism includes a rotating disk 8, a rotating shaft 9, a connecting rod 10, a limiting ring 11, a cleaning brush 12, and a docking mechanism. The rotating disk 8 is rotatably mounted on the protective cover 7. The rotating shaft 9, on which a cutting blade 19 is fixedly mounted, is fixedly mounted on the rotating disk 8. The other end of the rotating shaft 9 is fixedly connected to the output shaft of the drive motor 18. The connecting rod 10 is slidably sleeved on the rotating shaft 9 through the limiting ring 11. One end of the cleaning brush 12, used for cleaning dust, is fixedly mounted on the connecting rod 10, and the other end contacts the inner wall of the protective cover 7. The docking mechanism is disposed on the rotating disk 8 and is used to adjust the synchronous rotation of the connecting rod 10 and the rotating shaft 9.
[0026] In this embodiment, the rotation of the rotating disk 8, serving as a support and rotation platform for the rotating shaft 9, drives the rotating shaft 9 and the cutting blade 19 to perform cutting operations. The drive motor 18 drives the cutting blade 19 to perform rotational cutting via the rotating shaft 9. The design of the connecting rod 10 allows it to slide on the rotating shaft 9, but it is also limited by the limiting ring 11 to ensure that the connecting rod 10 does not detach from the rotating shaft 9. The design of the limiting ring 11 ensures the stability of the connecting rod 10 on the rotating shaft 9, preventing it from shifting and affecting the use of the cutting blade 19. When cleaning the protective cover 7 is required, the docking mechanism synchronizes the movement of the connecting rod 10 with that of the rotating disk 8. The cleaning brush 12 rotates accordingly and adheres closely to the inner wall of the protective cover 7 to effectively remove dust from the inner wall. The design of the docking mechanism ensures that the connecting rod 10 and its cleaning brush 12 can rotate synchronously with the rotating shaft 9 and the cutting blade 19 when needed, thereby achieving continuous cleaning of the inner wall of the protective cover 7.
[0027] In a further preferred embodiment of this utility model, the docking mechanism includes a locking block 13, a screw 14, and a docking frame 15. The locking block 13 is fixedly installed on the side wall where the connecting rod 10 is connected to the rotating shaft 9 and is arranged symmetrically along the axis. The screw 14 is rotatably installed on the outside of the rotating disk 8. The docking frame 15 is threadedly connected to the screw 14. The docking frame 15 is U-shaped and its two ends slide through the side wall of the protective cover 7. The two ends of the docking frame 15 are correspondingly arranged with the locking block 13.
[0028] In this embodiment, when cleaning the protective cover 7 is required, the user first adjusts the screw 14 so that the two ends of the docking frame 15 gradually approach the locking block 13. When the two ends of the docking frame 15 are respectively located on both sides of the two locking blocks 13, docking is achieved. At this time, a certain amount of resistance is formed between the two ends of the docking frame 15 and the locking blocks 13. This resistance ensures that when the rotating disk 8 rotates, the docking frame 15 can drive the connecting rod 10 and its cleaning brush 12 to rotate synchronously, thereby pushing the connecting rod 10 and its cleaning brush 12 to rotate and closely adhere to the inner wall of the protective cover 7 for cleaning, effectively removing dust from the inner wall. This design not only improves cleaning efficiency but also ensures the uniformity and thoroughness of cleaning. At the same time, since the docking mechanism can be easily adjusted by rotating the screw 14, the flexibility and ease of use of the equipment are also improved.
[0029] In a further preferred embodiment of the present invention, a fixing frame 16 is fixedly installed on the protective cover 7, and a movable plate 17 is slidably installed on the fixing frame 16. The movable plate 17 passes through the fixing frame 16 and contacts the cleaning brush 12.
[0030] In this embodiment, the mounting bracket 16 is designed to provide a stable support structure for installing and securing other components. The movable plate 17 can slide along the groove of the mounting bracket 16, allowing its position to be adjusted as needed. When the docking mechanism is not docking the connecting rod 10 with the rotating disk 8, the cleaning brush 12 rests on the movable plate 17 by gravity, preventing it from affecting the normal operation of the cutting blade when not in use. Furthermore, the movable plate 17 is also provided with protrusions to further ensure its stability, thereby extending the service life of the entire cleaning mechanism.
[0031] In a further preferred embodiment of this utility model, a water tank 20 is fixedly installed inside the mounting cover 2, an inlet pipe is fixedly installed on the top of the water tank 20 and extends to the outside of the mounting cover 2, a water pump 21 is fixedly installed inside the mounting cover 2, an inlet pipe 22 is fixedly installed at the inlet end of the water pump 21 and extends into the water tank 20, and a drain pipe 23 is fixedly installed at the outlet end of the water pump 21 and extends through the mounting cover 2 into the protective cover 7.
[0032] In this embodiment, the water tank 20 is designed to store cleaning water for rinsing the protective cover 7, cleaning brush 12, or other parts requiring cleaning when needed. A water inlet pipe is fixedly installed on the top of the water tank 20, extending beyond the mounting cover 2, allowing the user to easily add water to the tank. This allows the user to add cleaning water to the tank 20 as needed, ensuring continuous operation and effective cleaning. The water pump 21 draws cleaning water from the water tank 20 and delivers it to the parts requiring cleaning through pipelines. An inlet pipe 22 is fixedly installed at the inlet end of the water pump 21, extending into the water tank 20 to draw cleaning water from it. When the water pump 21 starts, it draws cleaning water from the tank 20 through the inlet pipe 22 and then delivers it to the protective cover 7 through the drain pipe 23 to rinse the parts requiring cleaning. This design not only improves the cleaning efficiency of the equipment but also makes the cleaning process more automated and convenient. Users only need to add enough cleaning water to the water tank 20 and start the water pump 21 to automatically rinse components such as the protective cover 7 and cleaning brush 12, greatly saving manpower and time. Furthermore, since the water tank 20, water pump 21, and their related pipelines are all fixedly installed inside the mounting cover 2, they are well protected and supported. This design not only improves the stability and durability of the equipment but also makes the entire system cleaner and more aesthetically pleasing.
[0033] In a further preferred embodiment of the present invention, a guide groove 24 is provided on the inner wall of the protective cover 7, and a nozzle is fixedly installed at one end of the drain pipe 23 connected to the protective cover 7, the nozzle extending into the guide groove 24.
[0034] In this embodiment, the purpose of the guide channel 24 is to guide the cleaning water sprayed from the nozzle, ensuring that it flows evenly along the guide channel 24 towards the inner wall of the protective cover 7, ensuring that the cleaning brush contains sufficient water during cleaning and improving the cleaning effect. The nozzle design allows the cleaning water discharged from the water pump 21 to flow out evenly, reducing water waste to a certain extent. More importantly, the nozzle is cleverly extended into the guide channel 24, so that the sprayed cleaning water can directly enter the guide channel 24 and flow along its direction. This not only ensures that the cleaning water can evenly cover the inner wall of the protective cover 7, improving the cleaning effect, but also avoids the cleaning water from splashing everywhere, causing unnecessary waste and pollution. At the same time, due to the guiding effect of the guide channel 24, the cleaning water and impurities such as dust can be guided more smoothly to both ends of the guide channel, preventing the cleaning water from covering the cutting blade. The user only needs to start the water pump 21, and the cleaning water will automatically spray from the nozzle and flow along the guide channel 24 to achieve automatic cleaning of the inner wall of the protective cover 7. This not only saves manpower and time, but also improves the cleaning efficiency and stability of the equipment.
[0035] In summary, compared with related technologies, the cleaning mechanism enables continuous and efficient cleaning of the inner wall of the protective cover during or after cutting, effectively removing dust and impurities and preventing excessive dust buildup inside the cover, which could affect the normal operation of the cutting machine. The design of the water pump and tank enables automatic supply and rinsing of cleaning water. Users simply need to start the pump, and the cleaning water will automatically spray out and flow along the guide channel to clean the inner wall of the protective cover, greatly saving manpower and time. The design of guide rods and fixing blocks enhances the overall structural stability of the cutting machine, ensuring the stability and accuracy of the cutting blade during cutting, while reducing wear caused by friction and collision, extending the equipment's service life. The docking mechanism allows the cleaning brush to rotate synchronously with the rotating shaft and cutting blade when needed, achieving continuous cleaning of the inner wall of the protective cover. Simultaneously, the movable plate design allows the cleaning brush to rest on the movable plate by gravity when not in use, preventing it from affecting the normal operation of the cutting blade. The ingenious design of the guide channel and nozzles ensures the uniform distribution and effective use of cleaning water, avoiding waste and pollution of cleaning water, and conforming to the concept of environmental protection and energy conservation.
[0036] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.
[0037] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.
Claims
1. A road construction joint cutting machine, characterized in that, include: A trolley with a mounting cover permanently installed; A hydraulic rod, which is fixedly mounted on the mounting cover; A movable groove is formed on the mounting cover; A support frame is fixedly mounted on the output shaft of the hydraulic rod, and the support frame extends into the mounting cover through a movable groove; A mounting cover for mounting the drive motor is fixedly mounted on the support frame; A protective cover, which covers the cutting blade, is fixedly installed on the fixed cover and is configured as a semi-circle; A cleaning mechanism for cleaning dust on the inner wall of the protective cover is provided on the protective cover; The cleaning mechanism includes a rotating disk, a rotating shaft, a connecting rod, a limiting ring, a cleaning brush, and a docking mechanism. The rotating disk is rotatably mounted on the protective cover. The rotating shaft, on which a cutting blade is fixedly mounted, is fixedly mounted on the rotating disk. The other end of the rotating shaft is fixedly connected to the output shaft of the drive motor. The connecting rod is slidably sleeved on the rotating shaft through the limiting ring. One end of the cleaning brush, used for cleaning dust, is fixedly mounted on the connecting rod, and the other end contacts the inner wall of the protective cover. The docking mechanism is disposed on the rotating disk and is used to adjust the connecting rod to rotate synchronously with the rotating shaft.
2. The road construction joint cutting machine as described in claim 1, characterized in that, A fixing block is fixedly installed inside the mounting cover. The fixing block is positioned above the movable groove. A guide rod is fixedly installed between the fixing block and the trolley. The guide rod is slidably connected to the support frame.
3. The road construction joint cutting machine as described in claim 1, characterized in that, The docking mechanism includes a locking block, a screw, and a docking frame. The locking block is fixedly installed on the side wall where the connecting rod is connected to the rotating shaft and is arranged symmetrically along the axis. The screw is rotatably installed on the outside of the rotating disk. The docking frame is threadedly connected to the screw. The docking frame is U-shaped and its two ends slide through the side wall of the protective cover. The two ends of the docking frame are correspondingly arranged with the locking block.
4. The road construction joint cutting machine as described in claim 1, characterized in that, A fixed frame is fixedly installed on the protective cover, and a movable plate is slidably installed on the fixed frame. The movable plate passes through the fixed frame and contacts the cleaning brush.
5. The road construction joint cutting machine as described in claim 1, characterized in that, A water tank is fixedly installed inside the mounting cover. An inlet pipe is fixedly installed on the top of the water tank and extends to the outside of the mounting cover. A water pump is fixedly installed inside the mounting cover. An inlet pipe is fixedly installed at the inlet end of the water pump and extends into the water tank. A drain pipe is fixedly installed at the outlet end of the water pump and extends through the mounting cover into the protective cover.
6. The road construction joint cutting machine as described in claim 5, characterized in that, A flow guide groove is provided on the inner wall of the protective cover, and a nozzle is fixedly installed at one end of the drain pipe connected to the protective cover, with the nozzle extending into the flow guide groove.