Dustproof cutting machine

Abstract

The utility model relates to the field of engineering machinery, in particular to a dustproof cutting machine. The cutting machine comprises a cutting machine body, a rack and a spraying system, and the spraying system is used for spraying water to a blade in the cutting machine body. The dustproof cutting machine further comprises a water retaining cover, a water collecting tank, a pipeline, a vacuum pump and a circulating pump. Wherein the water retaining cover is mounted on the rack and covers the rear side and the upper part of the blade. The water collecting tank internally comprises an upper cavity and a lower cavity. A partition plate and a filter element are arranged between the upper cavity and the lower cavity. A drawable filter plate is arranged in the upper cavity; and two ends of the pipeline are respectively connected with the water retaining cover and the water collecting tank. The vacuum pump is used for generating a negative pressure environment so as to suck dirt at the water retaining cover into the water collecting tank; the vacuum pump is further used for generating pressure difference between the upper cavity and the lower cavity of the water collecting tank. And the circulating pump is used for discharging water in the lower cavity of the water collecting tank. The road surface cutting machine solves the problems that pollution and water resource waste are easily caused when a traditional road surface cutting machine is used.

Description

Technical Field

[0001] The utility model relates to the field of cutting equipment, in particular to a dustproof cutting machine. Background Art

[0002] In some large-scale asphalt or concrete pavements, it is sometimes necessary to cut the location where the pavement meets the bridge or other structures to form an expansion joint. The setting of expansion joints can improve the pavement cracking caused by the different thermal expansion coefficients between materials. In addition, the pavement also needs to be cut in some local road repairs or well pipe projects. The special machine used for pavement cutting is the road cutting machine, which is mainly composed of a machine body and a cutting machine mounted on it. The cutting machine uses a diamond blade to cut the pavement.

[0003] Traditional road cutters produce a lot of noise and dust when in use, which not only harms the health of construction workers, but also causes wear on the blades and reduces the service life of the blades. On this basis, technicians designed a spray system in the road cutter, which is used to spray water on the blades. This can cool and lubricate the blades during cutting, thereby increasing the service life of the blades. On the other hand, it can also reduce the dust phenomenon during the cutting process to a certain extent. However, the dust will form mud after cleaning, and the splashing mud will cause pollution to the equipment and construction operators, which means that workers must wear one-piece gel protective clothing during construction, which is very troublesome. At the same time, this traditional road cutter will also cause a lot of water waste. Utility Model Content

[0004] Based on this, in order to solve the problem that traditional road cutting machines are prone to cause pollution and waste of water resources when used, the utility model provides a dust-proof cutting machine.

[0005] The technical solution disclosed in the utility model is as follows:

[0006] A dustproof cutting machine comprises a cutting machine, a frame and a spraying system, wherein the spraying system is used to spray water to a blade position in the cutting machine, and further comprises a water shield, a water collecting tank, a pipeline, a vacuum pump and a circulating pump.

[0007] The water shield is installed on the frame and covers the rear side and the top of the blade. A first sewage collection port is arranged in the water shield, and the first sewage collection port is located at the landing point of the projection direction when the blade rotates.

[0008] The water collecting box is located on the frame; the water collecting box includes an upper cavity and a lower cavity. A funnel-shaped partition is arranged between the upper cavity and the lower cavity, and a replaceable filter element is arranged in the funnel-shaped structure of the partition. A removable filter plate is arranged in the upper cavity, a sewage inlet located above the filter plate is arranged on the side wall of the upper cavity, and a sewage outlet is arranged on the side wall of the lower cavity. The two ends of the pipe are connected to the first sewage collecting port and the sewage inlet respectively; and a non-contractible pipe is used.

[0009] The vacuum pump is installed on the water collecting tank. The vacuum pump is used to create a negative pressure environment to suck the dirt at the water shield into the water collecting tank; the vacuum pump is also used to create a pressure difference between the upper cavity and the lower cavity of the water collecting tank. The circulation pump is connected to the sewage outlet to discharge the water in the lower cavity of the water collecting tank.

[0010] As a further improvement of the utility model, the pipeline adopts a metal pipeline, or a corrugated pipe with embedded steel wire.

[0011] As a further improvement of the utility model, a transparent window extending in the vertical direction for observing the internal cavity is provided on the side wall of the water collecting box. The transparent window adopts a cover plate made of an embedded glass material or a resin glass material.

[0012] As a further improvement of the utility model, a liquid level sensor is arranged in the lower cavity of the water collecting tank; the meter head of the liquid level sensor is installed on one side of the frame close to the handle.

[0013] As a further improvement of the utility model, the filter plate comprises a drawer-type filter frame and a perforated plate located on the bottom surface; a panel is arranged at the rear end of the filter plate.

[0014] As a further improvement of the utility model, a through groove for the filter plate to pass through is provided on the side wall of the first cavity in the water collecting box, and sealing rings are provided at corresponding positions of the panel and the through groove.

[0015] As a further improvement of the utility model, at least two mutually parallel slide grooves are arranged in the first cavity of the water collecting box, and the extending direction of the slide groove is parallel to the pulling direction of the filter plate.

[0016] As a further improvement of the utility model, the filter plate is an integrated component made of metal material; and a handle is provided on the outward side of the panel.

[0017] As a further improvement of the utility model, the nozzle of the spray system is installed on the water retaining cover, and the nozzle adopts a universal nozzle with adjustable angle.

[0018] As a further improvement of the utility model, the water collecting tank of the spray system adopts a double box body, one of the boxes is connected to the outlet of the circulation pump, and a water inlet is arranged on the top of the other box body.

[0019] Compared with the prior art, the technical solution disclosed in the utility model has the following beneficial effects:

[0020] The utility model adds a set of mechanisms that can vacuum the spray water, dust, mud, etc. to the existing dust-proof cutting machine, and also adds a set of mechanisms that can separate the sucked mixture into solids and liquids. With these two sets of mechanisms, sewage, dust, mud, etc. can be completely absorbed while cutting the road surface, avoiding contamination of the equipment surface and construction operators, improving the cleaning effect of the equipment operation process, and operators do not need to wear protective clothing when cutting. At the same time, the utility model can also preliminarily filter and recycle the sewage during the operation process, reducing the waste of water resources and having excellent environmental protection characteristics. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of a dustproof cutting machine provided in Example 1 of the utility model.

[0022] Figure 2 for Figure 1 Schematic diagram of the cross-sectional structure of the water collecting tank.

[0023] Figure 3 This is a schematic diagram of the structure of the filter plate in Example 1 of the utility model.

[0024] Figure 4 This is a schematic diagram of the product structure after the filter plate in Example 1 is pulled out of the water collecting tank.

[0025] Figure 5 This is a schematic diagram of the structure of a dust-proof cutting machine with a water storage tank using a double-box structure.

[0026] The markings in the figure are:

[0027] 1. Cutting machine; 3. Frame; 21. Water storage tank; 22. Nozzle; 41. Water shield; 42. Water collecting tank; 43. Pipeline; 45. Circulation pump; 210. Water inlet; 420. Transparent window; 421. Upper cavity; 422. Lower cavity; 423. Filter plate; 424. Partition; 425. Filter element; 426. Sewage inlet; 427. Sewage outlet; 428. Chute; 4230. Handle; 4231. Filter rack; 4232. Orifice plate; 4233. Panel. DETAILED DESCRIPTION

[0028] 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.

[0029] It should be noted that when a component is referred to as being "mounted on" another component, it may be directly on the other component or there may be a central component. When a component is considered to be "set on" another component, it may be directly set on the other component or there may be a central component at the same time. When a component is considered to be "fixed to" another component, it may be directly fixed on the other component or there may be a central component at the same time.

[0030] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "or / and" used herein includes any and all combinations of one or more related listed items.

[0031] Example 1

[0032] This embodiment provides a clean and environmentally friendly road cutting machine 1, such as Figure 1 As shown, it includes a cutting machine 1, a frame 3 and a spraying system, and the spraying system is used to spray water to the blade position in the cutting machine 1. The road cutting machine 1 also includes a water shield 41, a water collecting tank 42, a pipeline 43, a vacuum pump, and a circulation pump 45.

[0033] The water shield 41 is mounted on the frame 3 and covers the rear side and the top of the blade. The water shield 41 is provided with a first sewage collection port, which is located at the landing point of the projection direction when the blade rotates.

[0034] The water collecting tank 42 is located on the frame 3; Figure 2As shown, the water collecting box 42 includes an upper cavity 421 and a lower cavity 422. A funnel-shaped partition 424 is provided between the upper cavity 421 and the lower cavity 422, and a replaceable filter element 425 is provided in the funnel-shaped structure of the partition 424. A removable filter plate 423 is provided in the upper cavity 421, a sewage inlet 426 located above the filter plate 423 is provided on the side wall of the upper cavity 421, and a sewage outlet 427 is provided on the side wall of the lower cavity 422. The two ends of the pipe 43 are connected to the first sewage collecting port and the sewage inlet 426 respectively; and a non-contractible pipe 43 is used. Corresponding valve bodies are provided at the sewage inlet 426 and the sewage outlet 427, and the valve bodies are used to adjust the opening of the sewage outlet 427 and the sewage inlet 426.

[0035] The vacuum pump is installed on the water collecting tank 42, and is used to generate a negative pressure environment to suck the dirt at the water shield 41 into the water collecting tank 42. The circulation pump 45 is connected to the sewage outlet 427, and is used to discharge the water in the lower cavity 422 of the water collecting tank 42.

[0036] When the pavement cutting machine 1 provided in this embodiment is working, the cutting machine 1 drives the blade to rotate, and then cuts the pavement. When the blade rotates, the spray system runs synchronously to spray water on the position where the blade contacts the pavement. The sprayed water can cool the blade on the one hand, and on the other hand, it can play a dust removal effect to eliminate the dust problem caused by cutting. At the same time, the mud produced by the mixture of the sprayed water and dust will also be spun out backwards by the blade. Part of the mud spun out by the blade is thrown into the first sewage collection port in the water retaining cover 41, and the other part will also be in the inner space of the water retaining cover 41 after hitting the water retaining cover 41.

[0037] The vacuum pump in this embodiment operates synchronously with the cutting machine 1, and then forms a vacuum negative pressure in the inner layer of the water shield 41. The negative pressure sucks all the dust, water droplets and mud inside the water shield 41 into the water collecting box 42 through the pipe 43. The mixture of these mixed dust, iron filings, sand, mud, etc. will first fall on the filter plate 423 in the water collecting box 42. Since the aperture of the filter plate 423 is relatively large, only large particles of sand and gravel, iron filings, etc. contained in the mixture can be filtered out. The mud leaks from the filter holes in the filter plate 423 and reaches the partition 424 between the upper cavity 421 and the lower cavity 422. Since the partition 424 is a funnel-shaped part with a filter element 425 at the outlet position, the insoluble particles in the mud will be adsorbed by the filter element 425, and the relatively clean water will pass through the partition 424 to reach the lower cavity 422 in the water collecting box 42.

[0038] In the water collecting box 42 provided in this embodiment, in addition to forming a vacuum in the dust collecting cover and the pipe 43, the vacuum pump can also use part of the extracted fluid to generate a pressure difference between the upper cavity 421 and the lower cavity 422 to ensure that when the mechanical equipment is running, the pressure in the upper cavity 421 is always greater than that in the lower cavity 422. At this time, the water in the mud in the upper cavity 421 will be pressed and filtered downward to filter out impurities in the mud with a particle size larger than the pore size of the filter element 425. The filtered water will eventually enter the lower cavity 422 in the water collecting box 42, and the operator can discharge the sewage in the lower cavity 422 from the water collecting box 42 when the sewage is about to reach the maximum storage capacity.

[0039] It should be noted that the filter plate 423 and filter screen in this embodiment can only perform preliminary filtration on sewage and mud to remove particulate matter therein, and the water collection tank 42 cannot remove particulate impurities and soluble impurities therein. However, since the components of these sewage are mainly water and impurities such as dust and iron filings, there are no toxic and harmful pollutants. Therefore, after preliminary filtration and being discharged to the outside of the water collection tank 42 by the circulation pump 45, these filtered waters can also be reused. For example, in an actual application scenario, the circulation pump 45 can pump the initially filtered water into a special container during the operation of the road cutting machine 1. After sedimentation, these waters can be refilled into the water storage tank 21 of the spray system for reuse. Alternatively, the water in the lower cavity 422 can be directly used for irrigation or cleaning dust and dirt on the surface of engineering equipment before sedimentation, etc.

[0040] The pipe 43 in this embodiment is used to connect the water shield 41 and the water collecting box 42 to achieve vacuum adsorption. Therefore, the pipe 43 needs to be able to withstand a large internal and external pressure difference without deformation during use. In actual application, the pipe 43 should be a metal pipe 43 or a corrugated pipe with steel wire embedded therein.

[0041] The water collecting tank 42 in this embodiment needs to collect and separate the mixture of sewage and mud. Therefore, the technicians specially set a transparent window 420 extending in the vertical direction on the side wall of the water collecting tank 42 for observing the internal cavity. The transparent window 420 adopts a cover made of embedded glass material or resin glass material. Through the transparent window 420, the user can clearly observe the separation effect of the sewage and solids inside, and can also clearly see the capacity of different components in the upper cavity 421 and the lower cavity 422, so as to dispose or clean them separately.

[0042] In a more optimized solution of this embodiment, a liquid level sensor can also be set in the lower cavity 422 of the water collecting tank 42; the head of the liquid level sensor is installed on the side of the frame 3 close to the handle 4230. The setting of the liquid level sensor can enable the user to intuitively understand the capacity of the filtered sewage in the lower cavity 422 without looking through the transparent window 420, so that the user can determine the timing of starting the circulation pump 45. It should be noted that: the circulation pump 45 in this embodiment is manually started and operated. In other more optimized embodiments, the circulation pump 45 can also be controlled and operated by the main controller in the road cutting machine 1. For example, the main controller controls the operating state of the circulation pump 45 according to the detection data of the liquid level sensor: when the detection value of the liquid level sensor is higher than the preset maximum liquid level, the circulation pump 45 is turned on to discharge the water in the lower cavity 422; when the detection value of the liquid level sensor is lower than the preset minimum liquid level, the circulation pump 45 is turned off.

[0043] In the solution provided in the embodiment, the filter plate 423 and the filter element 425 respectively filter the collected sewage mixture in two passes, the former is used to filter solids with larger particle sizes, such as sand and gravel, and the latter is used to filter solids with smaller particle sizes, such as dust, iron filings, etc. The solids filtered out from the top of the filter plate 423 need to be cleaned regularly to prevent the upper cavity 421 from being blocked. At the same time, the filter element 425 also needs to be cleaned and replaced regularly. The filter element 425 in this embodiment mainly adopts a washable metal filter element 425 and a ceramic filter element 425. Of course, in some embodiments, the filter element 425 can also adopt a disposable filter material.

[0044] In order to facilitate the cleaning of solids in the upper cavity 421 and the replacement of the filter element 425 in the partition 424, the filter plate 423 of this embodiment is specially designed to be a removable structure. Specifically, Figure 3 and Figure 4 As shown, the filter plate 423 includes a drawer-type filter frame 4231 and a perforated plate 4232 located on the bottom surface; a panel 4233 is provided at the tail end of the filter plate 423. The filter plate 423 is an integrated component made of metal material; and a handle 4230 is provided on the outward side of the panel 4233. When the accumulated solids above the filter plate 423 reach a certain volume, the operator can pull out the filter plate 423 as a whole through the handle 4230 and pour out the solids collected therein.

[0045] In this embodiment, a through slot for the filter plate 423 to pass through is provided on the side wall of the first cavity in the water collecting tank 42, and a sealing ring is provided at the corresponding position of the panel 4233 and the through slot. The function of the sealing ring is to maintain the air tightness of the upper cavity 421 and the lower cavity 422 of the water collecting tank 42, so as to ensure the stability of the sewage mixture suction process and the sewage mixture separation process in the water collecting tank 42.

[0046] In the first cavity of the water collecting box 42 of this embodiment, at least two parallel chutes 428 are arranged, and the extending direction of the chutes 428 is parallel to the pulling direction of the filter plate 423. The chutes 428 are used to support and limit the filter plate 423. In actual application, the chutes 428 can be made of angle steel or a track with pulleys.

[0047] The nozzle 22 of the spray system of this embodiment is installed on the water shield 41, and the nozzle 22 adopts an angle-adjustable universal nozzle 22. The universal nozzle 22 can adjust the form (mist or water column) and position of the sprayed water as needed, so as to play a cleaning role on the equipment in addition to cooling, lubrication and dust prevention. For example, the operator can drive the spray system to run separately after the cutting is completed, and adjust the spray state of the spray system to achieve local cleaning of the part of the bottom of the equipment that is contaminated with dirt.

[0048] In some solutions provided in this embodiment, when the filtering effect of the filter element 425 used in the water collection tank 42 is good enough to filter out all the sediment in the sewage, the filtered sewage can be directly recycled. Figure 5 As shown, the water collecting tank 42 of the spray system in this solution adopts a double-box structure, one of which is connected to the outlet of the circulation pump 45 to recycle the filtered sewage. The other box is used to hold clean water and has a water inlet 210 at the top. The spray system alternately uses the water in the two boxes during use to reduce the probability of clogging of the spray system.

[0049] The above-mentioned embodiments only express some of the implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model shall be based on the attached claims.

Claims

1. A dustproof cutting machine, comprising a cutting machine, a frame and a spraying system, wherein the spraying system is used to spray water to a blade position in the cutting machine, and is characterized in that: The dustproof cutting machine also includes: A water shield is mounted on the frame and covers the rear side and the top of the blade; a first sewage collection port is provided in the water shield, and the first sewage collection port is located at the landing point of the projection direction when the blade rotates; A water collecting box is located on the frame; the water collecting box includes an upper cavity and a lower cavity; a funnel-shaped partition is provided between the upper cavity and the lower cavity, and a replaceable filter element is provided in the funnel-shaped structure of the partition; a removable filter plate is provided in the upper cavity, a sewage inlet located above the filter plate is provided on the side wall of the upper cavity, and a sewage outlet is provided on the side wall of the lower cavity; The pipeline adopts a non-contractible pipeline and is used to connect the first sewage collecting outlet and the sewage inlet; A vacuum pump, which is used to generate a negative pressure environment to suck the dirt at the water shield into the water collecting tank; the vacuum pump is also used to generate a pressure difference between the upper cavity and the lower cavity of the water collecting tank; and A circulation pump is connected to the sewage outlet and is used to discharge water in the lower cavity of the water collecting tank.

2. The dustproof cutting machine according to claim 1, characterized in that: The pipeline is a metal pipeline or a corrugated pipe with embedded steel wires.

3. The dustproof cutting machine according to claim 1, characterized in that: A transparent window extending in the vertical direction and capable of observing the internal cavity is provided on the side wall of the water collecting box. The transparent window adopts a cover plate made of an embedded glass material or a resin glass material.

4. The dustproof cutting machine according to claim 3, characterized in that: A liquid level sensor is arranged in the lower cavity of the water collecting tank; and a meter head of the liquid level sensor is installed on a side of the frame close to the handle.

5. The dustproof cutting machine according to claim 1, characterized in that: The filter plate comprises a drawer-type filter frame and a perforated plate located on the bottom surface; a panel is arranged at the rear end of the filter plate.

6. The dustproof cutting machine according to claim 5, characterized in that: A through slot for the filter plate to pass through is provided on the side wall of the first cavity in the water collecting box, and sealing rings are provided at corresponding positions of the panel and the through slot.

7. The dustproof cutting machine according to claim 6, characterized in that: At least two mutually parallel slide grooves are arranged in the first cavity of the water collecting box, and the extending direction of the slide grooves is parallel to the pulling direction of the filter plate.

8. The dustproof cutting machine according to claim 1, characterized in that: The filter plate is an integrated component made of metal material, and a handle is provided on the outward side of the panel.

9. The dustproof cutting machine according to claim 1, characterized in that: The nozzle of the spray system is installed on the water shield, and the nozzle is a universal nozzle with adjustable angle.

10. The dustproof cutting machine according to claim 1, characterized in that: The water collecting tank of the spray system adopts a double box body, one of which is connected to the outlet of the circulation pump, and a water inlet is arranged on the top of the other box body.

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