SU753998A1 - Bulldoser - Google Patents

Description

(54) BULLDOZER

one

The invention relates to the field of earth-moving machines, the working bodies of which are equipped with auxiliary equipment.

A bulldozer is known that includes a base machine with a lifting blade and a loosening tooth placed in front of the blade, mounted in a guide body, with which it is connected by a tension screw, the guide body being attached to the upper part of the blade and in the lower part of the loosening tooth mounted fastening element loosening tooth in the lower edge of the blade 1.

The disadvantages of this device include the presence of manual labor in the translation of the loosening tooth in the working and transport position, which leads to waste of time on these operations.

The closest solution known is a bulldozer including a base machine with a lifting blade and a frame with loosening teeth placed in front of the blade, which is connected to the blade by means of hinges and is equipped with a drive for its rotation in the vertical plane 2.

The disadvantages of this bulldozer are the complexity of the design, due to the presence of several actuators, one of which is designed for raising and lowering the blade and the other for shifting into the working and transport position of the frame with loosening teeth.

The purpose of the present invention is to simplify the design while ensuring a mechanized transfer of the auxiliary equipment to the working and transport position.

This goal is achieved by hinging the frame with auxiliary equipment on the bulldozer's lifting blade, which is located in front of the blade, and the base machine frame and the blade are equipped with blocks through which the rope is passed, one end of which is connected to the frame of the auxiliary equipment, and its other end associated with the blade, which also

20 mounted lock with remote control.

Claims (2)

FIG. 1 - front view bulldozer; in fig. 2 - the same, side view; in fig. 3 is a front view of a loosening tooth; in fig. 4 is a section A-A in FIG. 3. On the base machine 1, the pusher bars 2 and the blade 3 connected to the hydraulic cylinders 4 of its lift are mounted. A frame 6 with accessories in the form of a loosening tooth 7 is mounted on the blade with the help of hinges 5. A block 8 is installed on the base frame frame, and a block 10 on the top of the blade on the bracket 9. The frame 6 is equipped with an emphasis And with fingers 12 and 13, to the last of which is attached rope 14, passed through blocks 10 and 8 and attached to loop 15 on the rear wall of the blade 3. On the bracket 9, there is also a safety lock for the auxiliary equipment, made in the form of a stop hook 16, limited by stops It is connected to the return spring 17, and the other is connected via a cable 18 to a handle 19 located in the driver's cab. Adjusting holes 20 and 21 are made in the loosening tooth 7, for fastening it to the frame 6 by means of fingers 22. In addition, an additionally offset aperture 23 is provided for adjusting the cutting angle in the loosening tooth. The bulldozer operates as follows. To move the loosening tooth to the working position, the blade of the bulldozer is lifted to the extreme upper position by means of hydraulic cylinders 4, which leads to tension of the cable 14. Then, by pulling the cable 18, the driver pulls the swivel hook 16 from engagement with the pin 12 of the frame 6. When the blade is lowered, it unlocks the frame 6, choosing the weight of the slack of the rope 14 as its weight, will rotate relative to the blade in the hinges 5. The length of the rope 14 and the installation position of the finger 13 on the frame 6 are chosen so that by the time the frame 6 touches the blade 11 ezhdu surface ground and ripping tooth was guaranteed clearance. Further lowering of the blade ensures that the loosening tooth penetrates into the ground, which, when the basic machine moves, produces loosening of the soil. In this case, the rope 14 will be weakened, and the flare hook 16, when loosened by the driver 18, under the action of the return spring 17 will return to its original position. After the end of the loosening, the blade is lifted and by the time the loosening tooth is deepened, the slack in the cable 14 is fully selected. With the further raising of the blade, due to the tension of the rope 14, the frame 6 will rotate relative to the blade, and in the extreme upper position the frame 6 will hook on the hook with a finger 12 16, locking in the transport position. As an accessory, instead of a loosening tooth, on the frame 6, a coulter-ditch digger or lifter can be mounted. In this bulldozer the raising and lowering of the blade, as well as the transfer of the frame with the auxiliary equipment to the working and transport positions are carried out from one power drive, which allows to simplify the design, and compared to the bulldozers, in which the rearrangement of auxiliary equipment is done manually, this bulldozer allows by eliminating unproductive time expenditures to increase the productivity of the machine. Invention formula. Bulldozer, including the base machine, on the frame of which a lifting A blade and a frame with ancillary equipment placed in front of the blade, which is hinged on the blade and associated with its rotation drive, characterized in that, in order to simplify the design while ensuring the mechanized rearrangement of the auxiliary equipment to the working and transport position, the base frame of the machine and the blade provided with blocks through which a rope is passed, one end of which is connected to the frame of ancillary equipment, and its other end is connected to the blade, on which a clamp with distance ion control. Sources of information taken into account during the examination 1. USSR author's certificate number 454322, cl. E 02 F 5/30, 1972. 2. USSR author's certificate number 337467, cl. E 02 F 3/76. 1970. L-4 eleven FIG.