RU6201U1 - Bulldozer Equipment - Google Patents

Abstract

1. Bulldozer equipment, including a blade with a knife part and loosening teeth mounted on the latter, characterized in that the teeth are made with a sharp working end and are installed with the possibility of forced movement back and forth relative to the knife part, for which the corresponding holes are provided in the latter, while the working end of the teeth forms an angle of 40 - 55.2 with a horizontal plane. The equipment according to claim 1, characterized in that the tooth is made in a cone-shaped or prism-shaped form. The equipment according to claim 1, characterized in that the working end of the teeth is mounted relative to the horizontal plane, preferably at an angle of 45-50.4. Equipment according to claims 1 and 2, characterized in that the tooth is equipped with a crown mounted with the possibility of removal.

Description

Bulldozer equipment

The proposed utility model relates to earth-moving machines of the bulldozer type, which can be used in the construction of roads, as well as in mining.

In the practice of pre-construction, often the task is to loosen frozen or rocky soil and move it. The loosening of frozen ground is carried out chemically or by blasting, and moving - using known

bulldozers containing a working body in the form of a blade, in the lower part of which a cutting knife is installed.

Known bulldozer equipment (AS USSR 1229272), containing a blade connected to the body of the bulldozer by pushing beams with a knife part, on which wedge-shaped teeth are mounted with the help of bushings with the possibility of forcing the angle of installation of the cutting edges of the teeth. In this case, the cutting part of the tooth has a rectangular section.

Such equipment is intended to facilitate cutting of the soil, but cannot be used on frozen or rocky soil due to too strong frontal (frontal) resistance of the cutting part of the tooth, which has a rectangular section. In addition, the rectangular shape of the back of the tooth in combination with the fastening of the tooth in the sleeve by means of a shank does not provide a reliable fit of the entire plane of the back of the tooth to the blade part of the blade when the tooth is rotated in the sleeve

MKI: E 02F 3/76

And its work, which also makes this design unsuitable for working with frozen or rocky soil, since when working with hard soil, the teeth will deform and collapse very quickly.

The main technical problem, to which Hc is directed the proposed utility model, is to create a bulldozer equipment that allows loosening and moving solid soils, frozen and rocky.

Another technical task is aimed at expanding the possibility of using the proposed design both for loosening and moving frozen and rocky soils, and for cutting and moving traditional, fairly loose soil, as known dumps are usually used.

The tasks are solved by the fact that the proposed bulldozer equipment, including a blade with a knife part and mounted on the last loosening teeth, in which, according to the proposed utility model, the teeth are made with a sharp end and installed with the possibility of forced movement back and forth relative to the knife part, for which corresponding holes are provided in the latter, while the working end of the teeth forms an angle of 40-55 with the horizontal plane.

The tooth may be conical or prismatic in shape.

To increase the strength of the tooth, its working end is equipped with a crown mounted with the possibility of removal.

- 2 teeth relative to the knife part, the equipment is equipped with a shaft mounted on the back of the blade, on which the mentioned teeth are rigidly fixed, a cam mechanism, the cams of which interact with the teeth and are connected via the levers to the hydraulic drive of the bulldozer, and springs fixed at one end to the shaft and the other to the pushing bars bulldozer.

Preferably, the working end of the tooth is installed at an angle of 45-50 to the horizontal plane.

The essence of the proposed utility model is illustrated by graphic materials, where figure 1 schematically shows a bulldozer equipment: a) is a front view, b) is a side view; figure 2 is a diagram of the mounting of the teeth; Fig.Z is a fragment of the knife part of the blade with teeth, front view.

The bulldozer equipment includes (figa, b) a blade 1 with a knife part 2, on which loosening teeth 3 are installed, which are pushed forward and backward due to the operation of the hydraulic cylinder 4 belonging to the bulldozer. The working end of the teeth 3 forms an angle of 45-50 with a horizontal plane. The teeth 3 are made conical in shape and rigidly mounted on the shaft 5 (figure 2). The shaft 5 is installed in the cutouts of the guide rails b, rigidly attached to the back of the blade 1. The shaft 5 is connected by springs 7 (only one spring is shown in Fig. 2) with the pushing bars of the bulldozer (not shown in the diagram). The springs 7 are mounted symmetrically at both ends of the shaft 5. The fist 8 (only one fist is visible in FIG. 2) interacts with the tooth 3 installed on the shaft 5 (only one tooth interacting with the fist is shown in FIG. 2) and through the lever 9 and the rod 10 in a known manner connected to hydraulic cylinder 4 (not indicated in FIG. 2) bulldozer-3 pa. The fists 8 are designed to move the shaft 5 with the teeth 3 mounted on it forward, and the springs 7 after turning the Jteylakov 8 return the shaft 5 back.

The whole mechanism for moving the teeth is mounted behind the blade, in the so-called blade box.

The teeth 3 (Fig.Z) can also be prism-shaped and equipped with removable crowns 11.

The proposed bulldozer equipment operates as follows.

To extend the teeth 3 to the working position, through the hydraulic cylinder 4 of the bulldozer, a system of levers 10, 9 is set in motion, which rotate the fist B, which interacts with the back of the tooth 3, while the shaft 5 with the loosening teeth 3 moves forward and the teeth extend from the corresponding, provided in the knife part 2 of the blade 1 holes, as far as necessary for loosening a particular soil. Since each tooth 3 is pushed out with its fist 8, the construction — the teeth, the bearing shaft, the pushing fists — is rigid enough to allow loosening of frozen ground.

When moving a bulldozer with extended loosening teeth 3, the latter loosens frozen, strongly caked or rocky soil directly in front of the cutting knife of the knife part 2 of the blade 1 and facilitates the operation of the cutting knife, which stops sliding on the frozen soil and is able to cut previously loosened teeth 3 priming. Moreover, due to its shape (conical or prismatic) and angle. tilt in relation to the surface

 4 soil tooth does not experience strong soil resistance. The tilt angle provides the most optimal energy consumption of cultivation.

The presence of interchangeable crowns 11 allows to extend the life of the ripping teeth 3.

After completing the work of loosening and moving solid soil, the fists 8 are turned through a system of levers 10, 9 so that they cease to put pressure on the corresponding teeth, while due to the springs 7 installed along the edges of the shaft 5, the shaft 5 returns to its extreme rear position.

The productivity of a bulldozer is increased compared to bulldozers that are equipped with conventional dumps that do not have ripping teeth. Known bulldozer equipment equipped with wedge-shaped loosening teeth fixed with shanks, as mentioned above, cannot be used on frozen or rocky soils.

The proposed bulldozer equipment can also be used for cutting and moving. Usually quite loose (loose) soil, when the shaft 5 with the teeth 3 mounted on it is in its extreme rear position and the teeth 3 practically do not participate in loosening the soil.

Thus, the proposed equipment for the bulldozer allows you to loosen and move frozen, strongly caked and rocky soils, as well as cut and move ordinary soils, without requiring additional readjustment or conversion. Moreover, the placement of the tooth movement mechanism in the blade box does not disfigure the aesthetic perception of the bulldozer.

- 5 f

Claims (4)

1. Bulldozer equipment, including a blade with a knife part and loosening teeth mounted on the latter, characterized in that the teeth are made with a sharp working end and are installed with the possibility of forced movement back and forth relative to the knife part, for which the corresponding holes are provided in the latter, while the working end of the teeth forms a horizontal angle of 40 - 55 ^o .  2. The equipment according to claim 1, characterized in that the tooth is made in a cone-shaped or prism-shaped form. 3. The equipment according to claim 1, characterized in that the working end of the teeth is mounted relative to the horizontal plane, preferably at an angle of 45 - 50 ^o . 4. Equipment according to claims 1 and 2, characterized in that the tooth is equipped with a crown mounted with the possibility of removal.