Pavement cutting machine

Abstract

The utility model provides a road surface cutting machine which comprises a frame, and a power device, a hydraulic device, a cutting device, a lifting device, a walking device and a spraying device which are arranged on the frame, the power device is used for driving the hydraulic device and the cutting device to act; the hydraulic device comprises a hydraulic pump driven by the power device, and a hydraulic oil tank and a hydraulic motor which are respectively connected with the hydraulic pump, and the hydraulic motor is in transmission connection with the walking device; the lifting device comprises a supporting frame rotationally arranged at the bottom of the frame, auxiliary wheels arranged on the supporting frame and a hydraulic rod arranged on the frame, and the power output end of the hydraulic rod is connected with the supporting frame and driven by a hydraulic pump to control the cutting device to ascend and descend. And the spraying device is provided with a spray head for spraying working liquid towards the cutting device. According to the road surface cutting machine, due to the arrangement of the supporting frame and the auxiliary wheels, the cutting device can work more stably, and the use quality of the road surface cutting machine is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of cutting machines, in particular to a road surface cutting machine. Background Art

[0002] Concrete pavement has high strength and rigidity, and has high bearing capacity and load diffusion ability. Therefore, it is often used for paving on roads that are not suitable for asphalt or stone. After the concrete pavement is poured, shrinkage joints need to be set during the hardening process of the pavement. The shrinkage joints are used to prevent irregular cracks in the cement concrete road slab due to shrinkage during the hardening process and when the temperature drops.

[0003] At present, a pavement cutting machine is generally used to cut the shrinkage joints of concrete pavements in the hardening process. The pavement cutting machine generally includes a frame, wheels, a power device and a cutting device. The frame, wheels and power device cooperate to drive the cutting device to move on the pavement. The cutting device generally needs to be adjusted in advance to a distance from the pavement before cutting. When adjusting the cutting device, the existing pavement cutting machine generally adjusts the height of the cutting device on the vehicle body to achieve the lifting and lowering of the cutting device. The cutting device is easy to shake during the cutting process and cannot provide a stable cutting working state. Utility Model Content

[0004] In view of this, the utility model aims to provide a road cutting machine, so as to provide a stable working state for the cutting device and improve the use quality of the road cutting machine.

[0005] In order to achieve the above object, the technical solution of the utility model is implemented as follows:

[0006] A road cutting machine comprises a frame, and a power device, a hydraulic device, a cutting device, a lifting device, a walking device and a spraying device arranged on the frame;

[0007] The power device is used to drive the hydraulic device and the cutting device to operate;

[0008] The hydraulic device comprises a hydraulic pump driven by the power device, and a hydraulic oil tank and a hydraulic motor respectively connected to the hydraulic pump, and the hydraulic motor is transmission-connected to the walking device;

[0009] The lifting device includes a support frame rotatably arranged at the bottom of the frame, auxiliary wheels arranged on the support frame, and a hydraulic rod arranged on the frame;

[0010] The power output end of the hydraulic rod is connected to the support frame and is driven by the hydraulic pump to control the lifting and lowering of the cutting device;

[0011] The spray device has a spray head for spraying working fluid toward the cutting device.

[0012] Furthermore, a distributor is connected in series between the hydraulic rod and the hydraulic pump, and the distributor controls the movement of the hydraulic rod by changing the hydraulic flow direction.

[0013] Furthermore, the hydraulic rod is fixed to the vehicle frame via a connecting frame, and the hydraulic rod is rotatably mounted on the connecting frame.

[0014] Furthermore, the traveling device includes traveling wheels, a gearbox and a differential arranged on a frame; the hydraulic motor, the gearbox, the differential and the traveling wheels are sequentially connected in transmission.

[0015] Furthermore, a regulating valve is provided between the hydraulic pump and the hydraulic motor.

[0016] Furthermore, the traveling device also includes a braking system arranged on the frame, and the braking system is connected to the traveling wheel to brake the traveling wheel.

[0017] Furthermore, the spray device includes a water tank, a control valve and a spray head which are arranged on the frame; the water tank is connected to the spray head through a pipeline, and the control valve is arranged on the pipeline to control the on-off of the pipeline.

[0018] Furthermore, the power device includes a diesel engine arranged on the frame.

[0019] Furthermore, the power output end of the diesel engine is connected to the hydraulic motor and the cutting device through a pulley and a belt.

[0020] Furthermore, the cutting device includes a cutting saw arranged on the frame and a protective shell arranged on the frame; the protective shell has a accommodating cavity, and the cutting saw is arranged in the accommodating cavity.

[0021] Compared with the prior art, the utility model has the following advantages:

[0022] The pavement cutting machine described in the utility model can adjust the distance between the cutting device and the pavement through the setting of the lifting device, so as to better realize the cutting of the pavement shrinkage joints. The power device does not directly drive the walking device, but drives the walking device through the hydraulic motor, so as to realize more stable walking. The cutting device is fixed on the frame, which can bring a more stable working state to the cutting device. The distance between the cutting device fixed on the frame and the ground is adjusted by driving the support frame and the auxiliary wheel through the hydraulic rod, so that the distance between the cutting device and the pavement can be made more stable, thereby improving the use quality of the pavement cutting machine.

[0023] In addition, the hydraulic rod is adjusted through the distributor, which simplifies the pipeline, makes the adjustment stable, and is easy to operate, which is conducive to the design and implementation. The hydraulic rod is set on the frame through the connecting frame to form a certain protection for the hydraulic rod, which is conducive to the stability of the equipment during normal production, and the simple structure is conducive to the design and implementation. The vehicle's running gear can be adjusted by setting the gearbox and differential, which is conducive to corresponding to different speed requirements. The vehicle speed can be adjusted when the gear is fixed by setting the regulating valve, which has a simple structure and is conducive to the design and implementation.

[0024] In addition, the setting of the braking system is conducive to stopping the vehicle, and the brakes can be applied at any time during the operation, which is conducive to the implementation of the design. The spray device can spray the cutting part of the cutting device to avoid dust during the cutting process. The setting of the protective shell forms a certain coverage for the cutting saw to prevent other objects other than the road surface from contacting the cutting saw and causing danger, and can block the gravel generated during the cutting process to prevent the gravel from splashing. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the accompanying drawings:

[0026] Figure 1 This is a first structural schematic diagram of the road cutting machine according to an embodiment of the utility model;

[0027] Figure 2 This is a schematic diagram of the structure of the road cutting machine according to an embodiment of the utility model;

[0028] Figure 3 This is a front view of the structural relationship of the road cutting machine according to an embodiment of the utility model;

[0029] Figure 4 A side view of the structure of the road cutting machine according to an embodiment of the utility model;

[0030] Figure 5 A bottom view of the structural relationship of the road cutting machine according to an embodiment of the utility model;

[0031] Description of reference numerals:

[0032] 1. Frame; 2. Power unit;

[0033] 3. Hydraulic device; 301. Hydraulic pump; 302. Hydraulic oil tank; 303. Hydraulic motor;

[0034] 4. Cutting device; 401. Cutting saw; 402. Protective shell;

[0035] 5. Lifting device; 501. Support frame; 502. Auxiliary wheel; 503. Hydraulic rod; 504. Connecting frame;

[0036] 6. Traveling device; 601. Traveling wheel;

[0037] 7. Spraying device; 701. Water tank; 702. Spraying head. DETAILED DESCRIPTION

[0038] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0039] In addition, what is mentioned in the embodiments of the present invention refers to.

[0040] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "back" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0041] In addition, in the description of the present invention, unless otherwise clearly defined, the terms "installed", "connected", "connection" and "connector" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood in combination with specific circumstances.

[0042] The present invention will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0043] The present embodiment relates to a road cutting machine, which can provide a stable working state for a cutting device and improve the use quality of the road cutting machine.

[0044] In terms of overall structure, the road cutting machine of this embodiment includes a frame, and a power device, a hydraulic device, a cutting device, a lifting device, a traveling device and a spraying device arranged on the frame.

[0045] Among them, the power device is used to drive the hydraulic device and the cutting device to operate. The hydraulic device includes a hydraulic pump driven by the power device, and a hydraulic oil tank and a hydraulic motor respectively connected to the hydraulic pump, and the hydraulic motor is transmission-connected to the walking device.

[0046] The lifting device includes a support frame rotatably arranged at the bottom of the frame, auxiliary wheels arranged on the support frame, and a hydraulic rod arranged on the frame. The power output end of the hydraulic rod is connected to the support frame and is driven by a hydraulic pump to control the lifting of the cutting device.

[0047] In addition, the spray device has a spray head for spraying the working fluid toward the cutting device.

[0048] At this time, as set above, the road cutting machine of this embodiment can adjust the distance between the cutting device and the road surface through the setting of the lifting device, so as to better achieve the cutting of the road surface shrinkage joint.

[0049] And the power device does not directly drive the walking device, but drives the walking device through a hydraulic motor, which can achieve more stable walking. The cutting device is fixed on the frame, which can bring a more stable working state to the cutting device. The distance between the cutting device fixed on the frame and the ground is adjusted by driving the support frame and auxiliary wheels through a hydraulic rod, which can make the distance between the cutting device and the road surface more stable, thereby improving the use quality of the road cutting machine.

[0050] Based on the above overall introduction, an exemplary structure of this embodiment is as follows Figures 1 to 5 As shown, the road cutting machine of this embodiment includes a frame 1, and a power device 2, a hydraulic device 3, a cutting device 4, a lifting device 5, a walking device 6 and a spraying device 7 arranged on the frame 1.

[0051] Among them, a distributor is connected in series between the hydraulic rod 503 and the hydraulic pump 301. The distributor controls the movement of the hydraulic rod 503 by changing the hydraulic flow direction. The hydraulic rod 503 is adjusted through the distributor, which simplifies the pipeline, stabilizes the adjustment, and is easy to operate, which is conducive to design implementation.

[0052] It should be noted that the hydraulic oil tank 302 in the hydraulic device 3 stores hydraulic oil, and the hydraulic oil is driven into the hydraulic motor 303 and the distributor through the hydraulic pump 301, and the flow direction of the hydraulic oil into the hydraulic rod 503 is controlled by the distributor, thereby controlling the hydraulic rod 503 to push the support frame 501. As the hydraulic rod 503 is extended or shortened, the front end of the frame 1 is also lifted or lowered, thereby controlling the lifting and lowering of the cutting device 4 fixed on the frame 1.

[0053] In addition, the auxiliary wheels 502 provided on the support frame 501 can assist the road cutter to move on the road surface and can make the support frame 501 more convenient to adjust.

[0054] Preferably, the hydraulic rod 503 in this embodiment is fixed to the frame 1 through the connecting frame 504, and the hydraulic rod 503 is rotatably arranged on the connecting frame 504. The hydraulic rod 503 is arranged on the frame 1 through the connecting frame 504 to provide certain protection for the hydraulic rod 503, which is beneficial to the stability of the equipment during normal production, and the simple structure is conducive to design implementation.

[0055] In addition, as a preferred implementation form, the traveling device 6 in this embodiment includes a traveling wheel 601, a gearbox and a differential arranged on the frame 1. The hydraulic motor 303, the gearbox, the differential and the traveling wheel 601 are sequentially connected in transmission. The vehicle's traveling gear can be adjusted by setting the gearbox and the differential, which is beneficial for responding to different speed requirements.

[0056] Specifically, as a preferred implementation, a regulating valve is provided between the hydraulic pump 301 and the hydraulic motor 303 in this embodiment. The setting of the regulating valve can realize the adjustment of the vehicle speed when the gear is fixed. The structure is simple and convenient for design and implementation.

[0057] In addition, as a preferred implementation form, the traveling device 6 in this embodiment also includes a braking system arranged on the frame 1, and the braking system is connected to the traveling wheel 601 to brake the traveling wheel 601. The setting of the braking system is conducive to stopping the vehicle, and the brakes can be applied at any time during the operation, which is conducive to the design implementation.

[0058] Furthermore, as a preferred implementation form, the spray device 7 in this embodiment includes a water tank 701, a control valve and a nozzle 702 arranged on the frame 1, the water tank 701 is connected to the nozzle 702 through a pipeline, the control valve is arranged on the pipeline to control the on-off of the pipeline, and the nozzle 702 is facing the contact surface of the cutting machine with the road surface. The spray device 7 can spray the cutting part of the cutting device 4 to avoid dust during the cutting process.

[0059] It is understandable that the working liquid in the water tank 701 can be a coolant or water, as long as it can meet the requirements of being able to spray the cutting part to reduce dust and cool the cutting device 4.

[0060] In addition, as a preferred embodiment, the power unit 2 includes a diesel engine arranged on the frame 1, and the power output end of the diesel engine is connected to the hydraulic pump 301 and the cutting device 4 through a pulley and a belt. The use of a diesel engine reduces the use cost of the road cutting machine, is easy to maintain, and can also meet the power requirements of the hydraulic pump 301 and the cutting device 4.

[0061] In addition, as a preferred embodiment, the cutting device 4 of this embodiment includes a cutting saw 401 arranged on the frame 1 and a protective shell 402 arranged on the frame 1, the protective shell 402 has a accommodating cavity, and the cutting saw 401 is arranged in the accommodating cavity. The setting of the protective shell 402 forms a certain coverage for the cutting saw 401 to prevent other objects other than the road surface from contacting the cutting saw 401 and causing danger, and can block the gravel generated during the cutting process to prevent the gravel from splashing.

[0062] When this embodiment is in use, the power device 2 is first started, and the power device 2 drives the cutting saw 401 and the hydraulic pump 301 to operate. The extension and retraction of the hydraulic rod 503 is adjusted by the distributor, and the cutting saw 401 is cut into the ground. The gear position is adjusted by the gearbox, and the regulating valve is operated to control the travel speed of the cutter, thereby achieving continuous cutting of the road surface. In this process, the gear position can be changed according to actual needs through the gearbox, and the cutting machine can be stopped by the brake device.

[0063] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A road cutting machine, characterized in that: It comprises a frame (1), and a power device (2), a hydraulic device (3), a cutting device (4), a lifting device (5), a walking device (6) and a spraying device (7) arranged on the frame (1); The power device (2) is used to drive the hydraulic device (3) and the cutting device (4) to operate; The hydraulic device (3) comprises a hydraulic pump (301) driven by the power device (2), and a hydraulic oil tank (302) and a hydraulic motor (303) respectively connected to the hydraulic pump (301), and the hydraulic motor (303) is transmission-connected to the walking device (6); The lifting device (5) comprises a support frame (501) rotatably arranged at the bottom of the frame (1), an auxiliary wheel (502) arranged on the support frame (501), and a hydraulic rod (503) arranged on the frame (1); The power output end of the hydraulic rod (503) is connected to the support frame (501), and is driven by the hydraulic pump (301) to control the lifting and lowering of the cutting device (4); The spraying device (7) comprises a spray head (702) for spraying working fluid toward the cutting device (4).

2. The road cutting machine according to claim 1, characterized in that: A distributor is connected in series between the hydraulic rod (503) and the hydraulic pump (301), and the distributor controls the movement of the hydraulic rod (503) by changing the hydraulic flow direction.

3. The road cutting machine according to claim 2, characterized in that: The hydraulic rod (503) is fixed to the vehicle frame (1) via a connecting frame (504), and the hydraulic rod (503) is rotatably mounted on the connecting frame (504).

4. The road cutting machine according to claim 1, characterized in that: The running device (6) comprises running wheels (601), a gearbox and a differential arranged on the frame (1); The hydraulic motor (303), the gearbox, the differential and the travel wheel (601) are sequentially connected in transmission.

5. The road cutting machine according to claim 4, characterized in that: A regulating valve is provided between the hydraulic pump (301) and the hydraulic motor (303).

6. The road cutting machine according to claim 5, characterized in that: The walking device (6) further comprises a braking system arranged on the frame (1), wherein the braking system is connected to the walking wheel (601) to brake the walking wheel (601).

7. The road cutting machine according to claim 1, characterized in that: The spray device (7) comprises a water tank (701), a control valve and a spray head (702) arranged on the vehicle frame (1); The water tank (701) is connected to the nozzle (702) via a pipeline, and the control valve is arranged on the pipeline to control the on-off of the pipeline.

8. The road cutting machine according to claim 1, characterized in that: The power device (2) comprises a diesel engine arranged on the vehicle frame (1).

9. The road cutting machine according to claim 8, characterized in that: The power output end of the diesel engine is connected to the hydraulic motor (303) and the cutting device (4) via a pulley and a belt.

10. The road cutting machine according to any one of claims 1 to 9, characterized in that: The cutting device (4) comprises a cutting saw (401) arranged on the frame (1) and a protective shell (402) arranged on the frame (1); The protective shell (402) has a receiving cavity therein, and the cutting saw (401) is arranged in the receiving cavity.

Images