Collector of bulldozer equipment of earth mover

FIELD: construction.

SUBSTANCE: collector of bulldozer equipment of an earth mover is proposed, which comprises a body with radial holes for supply and discharge of working fluid, connected as capable of rotation and axial displacement with a blade frame. Inside the body there is a part of a fixed core, installed with a gap into eyes of the blade frame and stopped by the other part against rotation in a lever of a blade lifting mechanism. Besides, the body is equipped with a leash element with a through slot. The fixed core is made with circular grooves for installation of seals and circular bores, communicated with radial holes of the body and channels of supply and discharge of working fluid in the lever of the blade lifting mechanism and axial channels for transfer of working fluid from the lever of the blade lifting mechanism to the blade frame. At the same time the specified axial channels are closed with plugs with seals at the end side of the core and are pressed with a flange on bolts. Connection of the body with the blade frame is carried out by means of a threaded element screwed into the blade frame and stretching via the central axial hole installed into a cut slot of the leash element, a stop made in the form of a four-face rod with a base in the form of a square, with a support site perpendicular to its faces. Between the leash element and the stop in the radial direction there is a gap, the value of which is more than the total value of gaps between the outer surface of the core and inner surfaces of the blade frame eyes. Height from the surface joined with the blade frame to the support site of the stop is more than the thickness of the leash element, and the width of the stop is less than the width of the slot of the leash element.

EFFECT: increased operational resource of a collector due to elimination of direct transfer of loads from a movable part of a machine towards a fixed one.

4 dwg

 

The invention relates to the field of transport engineering, namely the volumetric pneumatic-hydraulic special, mobile construction and road machines, and is designed to swivel pipelines that are moving relative to one another the parts of the machine.

Known Central collector for swivel piping (RF patent No. 2052704), located on the movable relatively one to the other parts of the machine, comprising a movable body with a flange for fastening and snap ring grooves for the passage of fluid and sealing, a stationary core with axial channels and leash to drive the stationary core.

In the known device bolted to the stationary core leash connects it with the movable part of the machine - rotary platform and rigidly secures them against relative displacement.

Given that free rotation relative to each other, coaxially arranged one inside the other parts of the machine, when radial and axial loads between them should be at least a minimal radial and axial clearance, to the disadvantage of the known collector should include rigid body and core on a common axis of rotation, resulting in part of the collector in the transfer of operational efforts through the leash from the movable part of the machine (stand the company of the platform) to fixed (core) and, as a consequence, to increased operational wear of the collector due to the friction of its working surfaces under load, therefore reducing its resource.

Given the lack of specific collectors installed on the machines, interconnected open-friction bearings operating in an abrasive environment, with high loads, for example, the collector dozer equipment.

Task to be solved by the present invention is directed, is the creation of the sewer design for swivel pipelines that are moving relative to one another the parts of the machine, allowing to eliminate the direct transfer of loads from the movable to the stationary part of the machine and reduce operational wear of the collector.

This task is solved in that the collector dozer equipment earthmoving machine comprising a blade, a frame of the blade, the lever mechanism of the lifting blade with channels for supplying-discharging working fluid, the hydraulic cylinders control the blade, which is the common axis for the movable relatively one to the other parts dozer equipment - frame blade and lever mechanism for raising the blade, according to the invention, includes a housing with radial holes for the supply of fluid withdrawal, coupled with the possibility of rotation and axial p the motion to the frame of the blade, inside there is a part of the stationary core, passing with clearance through the eyes of a frame of the blade, and the other part is locked from rotation in the arm of the lifting mechanism of the blade, while the body is equipped with powered element with a through groove, the fixed core is made with annular grooves for sealing, annular grooves communicated with the radial holes of the casing and channels supply, drainage of fluid in the arm of the lifting mechanism of the blade, axial channels for transferring the working fluid from the lever of the lifting mechanism of the blade to the frame of the blade, seal, and connection of the case to the frame of the blade made by screwed into the frame of the blade threaded element, passing through the Central axial hole, is installed in the slit groove powered element, the emphasis made in the form, for example, square rod with a base in the form of a square, perpendicular to its faces, the reference area, and between the drive element and focusing in the radial direction there is a gap the size of which is larger than the total size of the gaps between the outer surface of the core and the inner surfaces of the lugs of the frame of the blade, the height from the surface mating with the frame of the blade to the supporting point of focus greater than the thickness powered element, and the width of the stop is less than the width of the groove powered element.

The declared technical features are significant because they affect the technical result achieved.

The study of other known technical solutions in this field of technology the features distinguishing the claimed technical solution, have not been identified. This allows us to conclude that the claimed technical solution is new and not obvious from the current level of technology.

The proposed solution can be applied in pneumatic and hydraulic actuators special, mobile construction and road machines.

The invention is illustrated by drawings, where: figure 1 shows a fragment of dozer equipment earthmoving machine; figure 2 shows a section a-a figure 1; figure 3 shows a view B figure 2; figure 4 shows in cross section view In figure 3.

Collector dozer equipment earthmoving machine 1 includes a blade 2, the frame 3 of the blade, the lever mechanism 4 5 raising the blade with 6 channels for the supply of fluid withdrawal, the hydraulic cylinder 7 blade control 2, the hydraulic cylinder 8, performing the rotation of the frame 3, includes a housing 9 with radial holes 10 for the supply of fluid withdrawal, coupled with the possibility of rotation and axial movement with the frame 3 of the blade. The housing 9 is provided with a drive element 11 with a through groove. Inside the housing 9 is part of the motionless heart is cnica 12, installed with a gap G in the lugs of the frame 3 of the blade and secured by the pin 13 from rotating in the lever mechanism 4 5 raising the blade. The stationary core 12 is made with an annular groove 14 for installation of the seals 15 and annular grooves 16 provided with a radial hole 10 of the body 9 and the channels 6 approach-retraction of the working fluid in the lever mechanism 4 5 lifting blade, and includes an axial channels 17 for transferring the working fluid from the lever mechanism 4 5 raising the blade to the frame 3 of the blade, which with the end faces of the core 12 are closed by plugs 18 with seals 19 are tightened flange 20 on the bolts 21. The connection of the case 9 to the frame 3 of the blade made by screwed into the frame of the blade screw element 22, passing through the Central axial hole 23 that is installed in the slit groove powered element 11, the stop 24, made in the form, for example, square rod with a base in the form of a square, perpendicular to its faces, the reference area, and between the drive element 11 and the stop 24 in the radial direction, a gap D, the value of which is larger than the total size of the gap G between the outer surface of the core 11 and the inner surfaces of the lugs of the frame 3 of the blade, the height of W from the surface mating with the frame blade to the supporting point of focus 24 greater than the thickness of 3 powered ele is enta 11, and the breadth And emphasis To less than the width of the groove powered element 11, which prevents the direct transfer of labour dozer equipment through the frame 3 and pedestrian element 11 on the stationary core 12 and reduces the wear of the working surfaces of the collector.

The device operates as follows.

The working fluid of the pneumo-hydraulic (and back) through the channels 6 of the lever 4, the axial channels 17 and the annular groove 16 of the core 12, the radial holes 10 of the body 9 through pipelines is supplied to the hydraulic cylinder 7, managing blade 2 and the cylinder 8, performing the rotation of the frame 3 of the blade along with fixed on her body 9 relative to the core 12, is locked in a stationary lever 4. When working dozer equipment housing 9, through the gaps (gap D, the difference of the dimensions W and H), is at the core 12 position (can move in the axial and radial direction within these clearances), precluding direct contact (friction between the working surfaces of the collector.

Thus, due to the simplicity of mounting powered element of the collector housing, the availability of guaranteed gaps, eliminating direct contact of the working surface of the collector, the application of this invention will increase the service life of the collector.

Collector bulldozer equipment is of earth-moving machines, includes blade, frame, blade, lever mechanism for raising the blade with channels for supplying-discharging working fluid, the hydraulic cylinders control the blade, which is the common axis for the movable relatively one to the other parts dozer equipment - frame blade and lever mechanism for raising the blade, characterized in that it includes a housing with radial holes for the supply of fluid withdrawal, coupled with the possibility of rotation and axial movement with the frame of the blade is located within the portion of the stationary core, passing with clearance through the eyes of a frame of the blade, the other part is locked from rotation in the arm of the lifting mechanism of the blade, while the case is equipped powered element with a through groove, the fixed core is made with annular grooves for sealing, annular grooves communicated with the radial holes of the casing and channels supply, drainage of fluid in the arm of the lifting mechanism of the blade and the axial channels for transferring the working fluid from the lever of the lifting mechanism of the blade to the frame of the blade, which closed with plugs with seals with the face side of the core and flange are tightened on the bolts, and the connection of the housing to the frame of the blade made by screwed into the frame of the blade threaded element passing through the Central axis is twistie, installed in the slit groove powered element, the stop is made in the form of a square rod with a base in the form of a square perpendicular to its faces, the reference area, and between the drive element and focusing in the radial direction there is a gap the size of which is larger than the total size of the gaps between the outer surface of the core and the inner surfaces of the lugs of the frame of the blade, the height from the surface mating with the frame of the blade to the supporting point of focus greater than the thickness powered element, and the width of the stop less than the width of the groove powered element.



 

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