JPH036647Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] This invention relates to a rotor device for a machine that processes a roadbed. Examples of machines that process roadbeds include road stabilizers and road cutters.

[Conventional technology]

Generally, the series of operations of scraping up the roadbed, mixing the scraped up recycled material with a pavement rejuvenating agent, and spreading it out are often performed using a road stabilizer, and the work of scraping the roadbed is performed using road cutters. There are many things about me. Depending on the purpose of road surface processing, other machines may be used, but all machines are equipped with a rotor with multiple cutting tools, and by rotating this rotor, many cutting tools around the rotor are used to cut the roadbed. Processing such as scraping or cutting is performed.

As a rotor device consisting of such a rotor and a cutting tool, there is a conventional rotor device as shown in FIG. 2, for example. FIG. 2 shows an example of a rotor device of a load stabilizer, where 1 is a rotor, 2 is a drum thereof, and 3 is a cutting tool called a bit or tine fixed to this drum. Usually, a large number of cutting tools 3 are provided, and the rotation of the drum 2 cuts the roadbed 4.
It is scraped up and crushed. A hood 5 is provided to cover the rotor 1 from above, and prevents material cut or scraped by the cutter 3 from scattering. Reference numeral 5a is a leveling section formed at the rear end of the hood 5, and is designed to level out the scraped up roadbed reclaimed material 6 as the road stabilizer moves forward. 7 is a nozzle of a sprayer (not shown), from which a predetermined liquid selected from a bit abrasion inhibitor, a pavement regenerating agent, a stabilizing agent, a roadbed stabilizer, etc. is sprayed when scraping up the roadbed. (In the case of a rotor device used in a road cutter, a liquid selected from among high-pressure water, an asphalt peeling accelerator, a bit abrasion inhibitor, etc. is ejected as the liquid.) Therefore, the rotation of the cutting tool 3 The recycled material scraped up collides with the hood 5 and falls backward, while
It is designed to mix with liquids such as water and roadbed stabilizers.

The rotational force of the rotor 1 is given by mechanical drive or hydraulic drive by a prime mover of a load stabilizer (not shown), and the depth h of scraping the roadbed by the cutter 3 is determined by the working device consisting of the rotor 1 and the hood 5. It is adjusted by raising and lowering.

[Problem that the invention attempts to solve]

However, in the case of the rotor of such a conventional stabilizer, the liquid does not come into direct contact with the cutting tool during cutting, and only comes into contact with the liquid at a time when it is not involved in cutting and at the moment when it passes the spray position of the nozzle. Most of the liquid is wasted without contributing effectively to the cooling of the cutting tools, etc., and when scraping the roadbed, the roadbed stabilizer is sprayed at a fixed position on the hood, so it is difficult to scrape. There was a problem in that the recycled material and the roadbed stabilizer etc. were not mixed effectively.

This invention was made in view of such conventional problems, and is aimed at solving the above problems.

[Means for solving problems]

This invention has been developed by arranging a nozzle on the rotor that sprays a liquid such as water or a roadbed stabilizer toward the cutting tool provided on the rotor or toward the forward direction of the cutting tool in the direction of rotation of the cutting tool. It now sprays liquid towards.

[Effect]

When the rotor rotates and the cutting tool installed on the rotor performs processing such as scraping up the roadbed, water and water are released from the nozzle installed near the cutting tool of the rotor toward the cutting edge of the cutting tool or the direction of rotation of the cutting tool to stabilize the roadbed. A liquid suitable for the purpose, such as an agent, is injected. Moreover, since the nozzle rotates together with the rotor and the cutter, the tip of the cutter is constantly being cooled while the water, roadbed stabilizer, etc. mentioned above is being injected from the nozzle, which accelerates the wear of the cutter. Prevention, etc. will be taken. Furthermore, since the liquid is sprayed in a 360° direction from the nozzle as the rotor rotates, it is sufficiently mixed with the scraped-up roadbed material. If liquids are used that need to be mixed with the subbase material, said mixing takes place uniformly and within a short time.

〔Example〕

This invention will be explained below based on the drawings. FIG. 1 is a diagram showing an embodiment of this invention, and is an example in which this invention is used in a road stabilizer.

In the figure, numeral 11 is a rotor, and numeral 3 is a cutting tool consisting of a bit or tine similar to the conventional example, which is disposed on a drum 12 of the rotor. Reference numeral 13 denotes a nozzle, which is attached to the drum 12 so as to open near the cutting tool 3 in the direction of the cutting edge 3a of the cutting tool. 14 is a supply pipe for supplying liquid to the nozzle 13 from a tank (not shown). The liquid is selected from among water, roadbed stabilizers such as cement milk and asphalt emulsion, and pavement regenerating agents depending on the purpose. A hood 15 is provided to cover the rotor 11 from above, and prevents the roadbed material 6 scraped up by the cutter 3 from scattering. Reference numeral 15a is a leveling section formed at the rear of the hood 15, and is designed to level out the stabilized roadbed material 6 as the road stabilizer moves forward.

Note that the supply of the rotational force of the rotor 11 and the adjustment of the cutting or scraping depth of the roadbed 4 are the same as in the conventional example.

Now, when the rotor 11 rotates and the cutting tool 3 provided on this rotor scrapes up the roadbed 4, the nozzle 13 arranged near the cutting tool 3 of the rotor 11 supplies it toward the cutting edge 3a of the cutting tool 3. Liquid supplied from a tank (not shown) is injected through the pipe 14.
Since the nozzle 13 rotates together with the rotor 11 and the cutting tool 3, while the liquid is being jetted from the nozzle 13, at least the vicinity of the cutting edge 3a of the cutting tool 3 is constantly cooled and depending on the type of liquid. Since the cutting tool 3 is lubricated, the degree of wear and tear on the cutting tool 3 is reduced. Further, the liquid is transferred to the rotor 1
1 is injected in a 360° direction from the nozzle 13, the scraped roadbed material is sufficiently mixed with the roadbed stabilizer, etc., and becomes uniformly treated roadbed material 6. Then, it is leveled on the roadbed by the leveling part 15 of the hood 15.

Further, the liquid is ejected from the nozzle 13 continuously or intermittently depending on the construction situation. Note that the desired effect can be obtained even if the number of nozzles 13 provided does not necessarily correspond one-to-one to the number of the plurality of cutting tools 3.

Although the above embodiment has been explained based on an example in which this invention is applied to a road stabilizer, this invention is widely applicable to other than road stabilizers, for example, to machines such as road cutters that process roadbeds with cutting tools on the outer periphery of the rotor. Can be applied. Various types of liquid can be used as the liquid ejected from the nozzle 13 depending on the purpose and working conditions of each machine. For example, liquids used in road cutters include high-pressure water, which is effective for cutting and destroying road surfaces, asphalt peeling promoters, cutting lubricants, and bit wear inhibitors. This high-pressure water and asphalt peeling accelerator are ejected in the forward direction of the rotational direction of the cutting tool 3, thereby making it easier to separate the structure of the road surface, and immediately after that, the cutting tool 3 cuts the road surface.

[Effect of idea]

As explained above, according to this invention, since the rotor is provided with a nozzle that injects liquid toward the cutting tool provided on the rotor, liquid can be evenly and reliably supplied to the cutting tool. If the liquid has a function by being mixed with the roadbed material, such as a roadbed stabilizer, a nozzle that rotates together with the rotor can uniformly apply the liquid to the roadbed material. Another advantage is that they can be mixed.

[Brief explanation of the drawing]

FIG. 1 is a schematic side view with a partial cross section of an embodiment according to the present invention, and FIG. 2 is a schematic side view with a partial cross section of a conventional example. 1, 11... Rotor, 3... Cutting tool, 3a... Cutting edge, 4... Roadbed, 7, 13... Nozzle.

Claims (1)

[Scope of utility model registration request] A machine that processes a roadbed with a cutting tool on the outer periphery of a rotor, characterized in that the rotor is provided with a cutting tool provided on the rotor or a nozzle that sprays liquid toward the forward direction of the cutting tool. The rotor device of the machine.