Bearer frame of working equipment of loader-digger

FIELD: machine building.

SUBSTANCE: invention is related to the field of machines intended for performance of earth and loading works, namely to machines such as single-bucket hydraulic diggers. Bearer frame of loader-digger working equipment comprises longitudinal beams with elements of bearer frame fixation on tractor, cross beams that are rigidly connected to longitudinal beams, bracket installed on upper bases of longitudinal beams with lugs that have openings in bushings for installation of rotary column of excavator equipment and hydraulic cylinders of its rotation, and brackets for installation of outriggers and hydraulic reservoir. Bracket is arranged from two vertical sides installed at the angle to each other, between which lugs are installed. Base of the lower lug is located on the same vertical level with lower edges of sides and is rigidly connected to upper bases of longitudinal beams, and also by means of two ribs with side surface of cross beam. Upper and middle lug are connected with rib, which is rigidly fixed to lower plane of upper lug and its bushing, and on the other side - with upper plane of middle lug in zone of openings for hydraulic cylinders of column rotation, at that bent sheet stands are connected to external sides of longitudinal beams, and these stands are also connected to sides of bracket, creating rigid space structure.

EFFECT: simplification of design and technology of loader-digger bearer frame manufacturing technology, reduction of nomenclature of roller stock rigging used in bearer frame design.

6 dwg

 

The invention relates to the field of machines intended for excavation and loading operations, and in particular to machines of the type hydraulic shovel excavators.

Known frame of the working equipment hydraulic excavator on the basis of a wheeled tractor, containing longitudinal beam elements to attach the frame to the tractor, a transverse beam supporting the head with the stub nests under the rotary column operating equipment and hydraulic drive units of its rotation and welded to the frame in the area of the turning bracket hydraulic outriggers [1].

The shortcoming of known frames of the working equipment hydraulic excavator on the basis of tractor is that it can not be used under operating equipment, rotary column which is managed directly by the hydraulic cylinders, contains many details, which in the manufacture require fairly accurate operations for bending sheet material.

Also known frame of the working equipment hydraulic excavator on the basis of a wheeled tractor, containing longitudinal beam elements to attach the frame to the tractor, a transverse beam supporting the head with bracket with sheet tabs arranged horizontally one above the other and made the haunted figure, having on the tops of both eyes stub nests under the cylinders of the steering head, and on top of the bottom and additional eyelets - sleeve jacks under the rotary head [2].

The disadvantage of this design is specified frame is its complexity, a large nomenclature used in the construction of the supporting frame of the rolling material, which increases the cost of construction and increase the weight of the Assembly of the supporting frame work equipment.

The task of the invention is to simplify the design and manufacturing technology frame work equipment backhoe loaders, reducing the nomenclature used in the construction of the supporting frame mounted equipment rolling material, which simplifies the Assembly of the specified frame and reduces its cost.

The supporting frame work equipment backhoe loaders that solves this task contains the longitudinal beams (rails) with fasteners on the frame on the tractor, a transverse beam rigidly connected to the longitudinal beams, a bracket mounted on the upper grounds of the longitudinal beams, with eyes that have holes in bushings for mounting the rotary column earthmoving equipment and cylinders of its rotation, and brackets for installation of outriggers and tank. EEK the Thain made of two vertical angled to each other of the sidewalls, between which the lugs, and the base of the lower lugs are located on the same vertical level with the lower edges of the side walls and rigidly connected with the upper bases of the longitudinal beams, and by two edges with the side surfaces of the cross beams at the top and the middle ring are linked by an edge rigidly connected to the bottom plane of the upper lugs and its sleeve, and on the other hand - with the top plane of the secondary lugs in the area of the holes in the cylinders rotate the column, and to the outer sides of the longitudinal beams attached curved sheet racks, which are also connected to the sidewalls of the bracket, forming a rigid spatial structure.

The invention is illustrated by figures:

Figure 1 - carrying frame work equipment backhoe loaders, top view,

Figure 2 - carrying frame work equipment backhoe loaders, side view,

Figure 3 - main frame work equipment backhoe loaders, bracket with lugs, side view,

4 is a frame work equipment backhoe loaders, bracket eye view from above,

5 is a frame work equipment backhoe loaders, bracket with lugs, rear view,

6 is a frame work equipment backhoe loaders, section a-A figure 3.

The supporting frame work equipment backhoe loaders contains the longitudinal beams 1 and 2, the cross-beams 3 and 4. The transverse beams 3 and 4 are rigidly connected to the longitudinal beams 1 and 2. The bracket 5 is made of two vertical angled to each other of the side walls 6 and 7 and has lugs 8, 9 and 10. The bracket 5 is mounted on the upper substrates 11 and 12 of the longitudinal beams 1 and 2 respectively. Lugs 8, 9 and 10 are located between the side walls 6 and 7. The lugs 9 and 10 have the bushings 13 and 14 with holes for the cylinders of the steering column. The lugs 8 and 10 have the bushings 15 and 16 with holes for the column. The base 17 of the lower lugs 10 are located on the same vertical level with the lower edges of the side walls 6 and 7 and are connected simultaneously to the upper grounds of the longitudinal beams 1 and 2, and by symmetrically from the axis of the two edges 18 and 19 with the side surfaces of the cross beam 4. The upper ring 8 and the average ring 9 are connected by an edge 20. The rib 20 is rigidly connected with the bottom plane 21 of the upper lugs 8 and the sleeve 15, and on the other hand - with the top plane 22 of the secondary lugs 9 in the area of the holes in the cylinders rotate column. Curved sheet racks 23 and 24 rigidly attached to outer sides of the longitudinal beams 1 and 2, and side walls 6 and 7 respectively, forming with them rack box section. The bracket 25 is 26 under the outriggers is rigidly attached to the lower bases 27 and 28 of the longitudinal beams 1 and 2, as well as sheet racks 23 and 24. The bracket 29 for fastening the tank is installed on the front part of the longitudinal beams 2 from the inner side.

When the Assembly of individual components and the supporting frame as a whole is the following. Separately collected longitudinal frame beams, namely to beams 1 and 2 are rigidly attached to the base 11, 12, 27 and 28. When assembling the bracket 5 to the side walls 6 and 7 rigidly attached to the lugs 8, 9 and 10 and is boring eyes in bushings 13, 14, 15 and 16. The longitudinal beams 1 and 2 are rigidly connected with the transverse beams 3 and 4. On top of the base 11 and 12 of the longitudinal beams 1 and 2 is installed bracket 5 and is connected to the lower base 17 with beams 1 and 2, then rigidly joined by a curved sheet racks 23 and 24 to the side walls 6 and 7 of the bracket 5 and to the outer sides of the longitudinal beams 1 and 2. To the bottom base 17 and the side surface of the cross beam 4 is attached to the ribs 18 and 19. The brackets 25 and 26 rigidly secured on the lower bases 27 and 28 of the longitudinal beams 1 and 2, and are connected with sheet racks 23 and 24.

Thus, the present invention provides a simplified design and manufacturing technology frame work equipment backhoe loaders, reducing the nomenclature used in the construction of the supporting frame mounted equipment rolling material, which simplifies the Assembly is shown the frame and reduces its cost.

SOURCES of INFORMATION

1. U.S. patent No. 4087009, CL E02F /72, publ. 1978.

2. Patent of Ukraine No. 26330 from 12.08.1993, E02F 3/38, E02F 9/08.

The supporting frame work equipment backhoe loaders, including longitudinal beams with fasteners on the frame on the tractor, a transverse beam rigidly connected to the longitudinal beams, a bracket mounted on the upper grounds of the longitudinal beams, with eyes that have holes in bushings for mounting the rotary column earthmoving equipment and cylinders of its rotation, and brackets for installation of outriggers and tank, characterized in that the bracket is made of two vertical angled to each other of the side walls, between which the lugs, and the base of the lower lugs are located on the same vertical level with the lower edges of the sidewalls and rigidly connected with the upper bases of the longitudinal beams, and by two edges with the side surfaces of the cross beams at the top and the middle ring are linked by an edge rigidly connected to the bottom plane of the upper lugs and its sleeve, and on the other hand - with the top plane of the secondary lugs in the area of the holes in the cylinders rotate the column, and to the outer sides of the longitudinal beams attached curved sheet racks, which are also tightly soedinenii sidewalls of the bracket, rigidly forming a spatial structure.



 

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