Cylinder

 

The invention relates to the field of lifting and transport machinery, namely the cylinders double-acting for lowering and hoisting the anchor-installation paws outrigger outriggers craniomandibular units (CMU). The hydraulic cylinder (HZ) includes a housing with a welded bottom, a removable end-to-end cover and the end connector to secure it on the end of the extendable beams turntable CMU, one-sided hollow rod with piston and an end connector for otstykovki paws become automatically self-centering with reference fifth, the sealing elements movable and immovable joints, wiper and channels for supplying the working fluid with a threaded flanged fittings. Threaded fittings for the supply of the working fluid in its piston and rod cavity HZ exploded between them in the circumferential direction, and the side wall of the cartridge housing is welded lugs with screw holes for fastening them mounted one-way pilot-operated check valve. The technical result is to simplify the design, reduce the size, increase reliability, and improve the Assembly and disassembly HZ. 4 C.p. f-crystals, 10 ill.

The invention Rel is for lowering and lifting the support mounting legs detachable outriggers craniomandibular installations.

Known for a large number of analogues of the invention, both domestic and foreign developments (see, for example, ABT. mon. SU 889986, F 16 J 10/02, 1981 ; SU 1599252, B 60 S 9/02, 15.10.90,; bids Germany 4002558, F 15 B 15/14, 23.08.90,; GB 1465289, B 60 S 9/10, 2.03.77,; GB 2058693, B 60 S 9/00, B 60 F 1/00, B 60 D 15/02, 15.04.81,; JP 58-50898, B 60 S 9/12, 12.11.83,; U.S. Pat. US 4236643, F 15 B 15/00, 10.05.2000,; US 544968, F 01 B 31/00, 15.08.95,; EN 2148733, F 15 B 15/00, 10.05.2000,; C. A. Vasilchenko. Hydraulic equipment of mobile machines. The Handbook. M: mechanical engineering, 1983, BBK 34.447, B19, UDC 62-82/625.08 (03), page 93, Fig.3.40, and other technical literature on hydraulic drive).

In the most General form of remote outrigger is a hinged or rigidly attached to the end proposed in the transverse direction of the beam of a turntable craniomandibular installation power telescopic rack with the installation paw, which is to ensure the necessary stability of the plant from tipping over can snuggle up to the ground and drained from him.

In some known external outriggers (JP 58-50898, US 4236643 and other) support mounting legs are moved by kinematically associated Autonomous cylinders double-acting. Spatial these cylinders monstrously actuating cylinders and can be used to move the support mounting legs of the corresponding standardized and mass-produced drive.

However, in this case becomes much more complicated design of the extension of the outriggers in General, increase their size and weight deteriorates perfection.

In others as a power strut is used directly to design the hydraulic cylinder, oriented stem down (GB 1465289, GB 2058693 and others).

In this case, the support mounting legs detachable outriggers are secured on the free ends of the cylinders. These outriggers are more compact and have better weight perfection. To fasten them to the ends of the sliding beams support-rotating device is used, mainly, the outer cylindrical surface of the cylinder forming on her special connecting elements for fixing it in the axial and circumferential directions.

For example, in the well-known analogue GB 1465289 cylinder attached to the end of the extendable beams of a turntable of a mobile crane with two removable fingers passed through the respective groups of coaxial holes formed in a pair of spaced between the plates, welded to his body, and the side walls of the specified beam, along which are located the plate. Constructive IV is hudsonia weight perfection remote outrigger in General.

Many of the known hydraulic cylinders are standardized and produced serially. When this item is extremely high. In Europe alone, more than 120 companies produce various types of hydraulic cylinders for a variety of machines and equipment.

However, in some cases, standard hydraulic cylinders General engineering purposes is not always satisfy developers of special equipment for the connecting elements, dimensions, develop efforts, the degree of sealing of the working cavities, weight perfection, ease of Assembly and disassembly, and other technical and operational characteristics.

From among the known analogues of the proposed technical solution closest (prototype) can serve as a double-acting hydraulic cylinder for lowering and hoisting the anchor-installation paws outrigger outriggers turntable crane ISS-4032, depicted in Fig. 19 page 49 "Guide for operators (drivers) for the safe operation of cranes". M : NGOs MBT, 1995, LBC 32.816 N, P, UDC[221.856.8-5: 658.382.3]: 658.386.05), author N. A. Shishkov.

The specified cylinder includes a housing made in the form of a cylindrical sleeve with welded bottom, a removable end-to-end trojstva crane, one-sided welded hollow rod with piston and removable terminal connector for otstykovki to him paws become automatically self-centering with reference fifth, the sealing elements movable and immovable joints, wiper and channels for supplying the working fluid in the piston and the rod end with a threaded flanged fittings.

Removable end-to-end cover in a known hydraulic cylinder secured in the inner cavity of his sleeve by means of a split spring ring of circular cross section and is fixed against rotation in the circumferential direction by securing several evenly spaced around the circumference of the radial set screws. It is obvious that such compounds contribute to the compactness and improved weight design perfection.

However, when large geometric dimensions of the hydraulic cylinder Assembly connections of the specified type is difficult because of the hardness of the spring ring. This requires a special device. In addition, they are very sensitive to various types of manufacturing inaccuracies, leading to the possibility of relative displacement of interacting with a spring ring edges of the mating parts.

In this regard, under Darwinism the ring edges mating with it, parts are implemented significant contact voltage, leading to their collapse.

In the result of the collapse of these edges is a kind of rolling mating parts is extremely difficult their disassembly. In practice, the operation of known cases of transformation for this reason, detachable joints in one piece.

The performance of the prototype removable piston with lip seals, protected end washers and fastening nut too complicates the design of the cylinder, increases its axial and radial dimensions and impairs optimal weight.

Removable terminal connector rod for otstykovki to him paws become automatically self-centering fifth reference is made in the prototype in the form of a corresponding cylindrical bore in the sleeve with the annular groove of a split spring ring in the axial securing the legs in the bore.

The disadvantage of this technical solution is identical to the above for attachment of the removable end-to-end cover of the cylinder.

In the attachment legs in the cylindrical bore of the sleeve shaft of the specified cylinder is not provided for fixing it against rotation in the circumferential direction, which is undesirable because of the mutual relative movement of the mating parts stnogo cylinder at the end of the cantilever part retractable beams of a turntable of the crane ISS-4032 used the external surface of the cylindrical sleeve of his body and formed therein corresponding bounding flange ring configuration (see Fig.3 - page 27, 4 - pages 29 and 19 - page 49 above the "guide...").

Radial fixation of the known hydraulic cylinder is carried out by means of an appropriate tightening bolts between two mutually spaced along the height of the clamp.

The present invention is to simplify the design, reduce the size, increase reliability, weight perfection, improvement of Assembly and disassembly, and other technical and operational qualities of the inventive hydraulic cylinder.

In accordance with the invention it is achieved that in the present double-acting hydraulic cylinder for lowering and hoisting the anchor-installation paws outrigger outriggers craniomandibular installations, comprising a housing made in the form of a cylindrical sleeve with welded bottom, a removable end-to-end cap and an end connector for rigid fastening it to the end of the cantilever part retractable beams turntable craniomandibular installation, one-sided welded hollow rod with piston and an end connector for otstykovki paws become automatically self-centering with reference fifth, the sealing elements movable and immovable joints, the wiper and the channel for supplying the working liquids is and is further provided with formed welded at its bottom on the outside and interacting as part of a turntable craniomandibular installation with a corresponding vertically oriented and open bottom landing slot, located at the end of the cantilever part retractable beams specified device, rough terrain centering shank with a flat annular supporting-mounting end and several evenly spaced in the circumferential direction and open on the outside blind threaded mounting holes for the bolts securing the shank in the socket beams, removable end-to-end cover paired with his sleeve by threaded connection, the piston is made integral whole with the rod, and the end of the connector rod in the form of screwed it on the thread and additionally scontrino place mates by means of the axial set screw, secured by cerite-top into the slot in the thread at three points with a depth of 11.5 mm at an angle of 3045 degrees, sleeve developed with a Central threaded hole removable paw remote outrigger fitted concentrically located with respect to its Central threaded hole and open to an outer side in a hollow cylindrical recess to enter into it unbent hook locking washer, ensuring the fixation of the legs in the circumferential direction after the bend on its respective chamfer the edges of the washer.

Pee all power construction elements made of medium-carbon low-alloy steel, reinforced thermo-mechanical working, for the radial fixing of the rod to the piston with the possibility of axial movement used split reference guide ring with an oblique castle made of high-strength and wear-resistant polymer material, such as carbon-reinforced polyamide, and for sealing of mobile connections - combined seal at the base of the sealing rings of wear-resistant polymer material with high anti-friction properties, for example acconpanied PTFE, and the gland rings providermessage oil-resistant material, for example rubber.

Threaded mounting fittings channels for supplying the working fluid in the piston and the rod end of the inventive hydraulic cylinder is displaced in the circumferential direction with respect to each other, and on the side wall of the cartridge casing from the outside between the threaded connection fittings of these channels welded to the support-mounting bosses with blind threaded holes for fastening them mounted one-way pilot-operated check valve, providing automatic locking piston cylinder cavity in case of accidental damage are placed is, the de shown: in Fig.1 - General view of the inventive hydraulic cylinder; Fig.2 - view And left on the cylinder; Fig.3 - type B right on the cylinder; Fig.4 - remote element In the magnified image host piston seal cylinder in the sleeve of his body; Fig.5 - external element G with a magnified image of the host stem seal cylinder in removable through the cover sleeve of his body; Fig. 6 is a cross section d-D of the cylinder at the location of one of the support-mounting bosses for mounting a hinged one-way pilot-operated check valve, providing automatic locking piston cavity in case of accidental damage placed before him a flexible hose for supplying working fluid locking valve cut conventionally not shown); Fig. 7 - site additional fastening of the inventive hydraulic cylinder to the end of the cantilever part retractable beams turntable craniomandibular installation by means of axial bolts; Fig. 8 is a General view of a fragment of a turntable craniomandibular installation with a remote outrigger, whose paw drawn into the internal cavity of the cylinder; Fig. 9 is a General view of a fragment of a turntable craniomandibular of fragmenta remote outrigger, showing features fastening his paws on the end of the rod of the inventive hydraulic cylinder.

The inventive hydraulic cylinder 1 double-acting for lowering and hoisting the anchor-installation paws 2 the extension of the outriggers 3 craniomandibular installation includes a housing 4 made in the form of a cylindrical sleeve 5 with welded bottom 6, a removable end-to-end cover 7 and the end connector 8 for rigid fastening it to the end of the cantilever part retractable beams 9 a turntable 10 of this setup, one-sided welded hollow stem 11 with the piston 12 and the end connector 13 for otstykovki paws become automatically self-centering with reference fifth 14, the sealing elements 15-25 movable and immovable joints, wiper 26 and the channels 27, 28 supply of the working fluid in the piston and the rod end 29, 30 with threaded flanged fittings 31, 32.

As of the end of the connector 8 of the housing 4 of the inventive hydraulic cylinder is used, as in the prototype, its outer lateral surface 33. When the specified connector is further provided with formed welded on the bottom 6 of the housing from the outside and interacting as part of a turntable 10 craniomandibular is its at the end of the cantilever part retractable beams 9 a turntable, rough terrain centering shank 35 has a cylindrical shape with a flat support mounting end 36 of annular configuration and multiple evenly spaced in the circumferential direction and open on the outside blind threaded mounting holes 37 under the bolts 38 mounting shank in the socket beams.

The presence of such shank provides more reliable in comparison with the prototype, the fastening detachable outrigger on metal retractable beams turntable craniomandibular installation.

Removable end-to-end cover 7 of the housing 4 cylinder paired with his sleeve 5 by means of a threaded connection 39. Cover 7 socotrana in the sleeve 5 of the housing 4 by means of several evenly spaced in the circumferential direction of the radial set screws 40, are secured by cerite-top into the slot in the thread at three points with a depth of 11.5 mm at an angle of 3045 degrees.

This removable connection through the cover with the casing liner of the inventive hydraulic cylinder in terms of technology is quite simple and has, in comparison with the prototype, much more durability, reliability, ease and convenience of Assembly and disassembly in the process of the judge who allows to significantly simplify the design of the rod with piston, to reduce the axial and radial dimensions and to obtain a significant gain in its mass.

End connector 13 of the rod 11 made in the form of screwed on the threaded sleeve 41 with a developed Central screw hole 42 under removable paw 2 remote outrigger 3. The sleeve 13 is additionally secondline place mates with the rod 11 by means of the axial set screw 43, secured by cerite-top into the slot in the thread at three points with a depth of 11.5 mm at an angle of 3045 degrees.

It is fitted concentrically located with respect to its Central threaded hole 42 and open on the outer side in a hollow recess 44 has a cylindrical shape to enter into it unbent hook 45 of the locking washer 46, which provide a record of the legs 2 in the circumferential direction after the bend on its respective chamfer edge 47 of the washer.

The performance of the connector 13 in the technological plan is simple enough and has, in comparison with the prototype, much more durability, reliability, ease and convenience of Assembly and disassembly of the connection of the coupling parts during operation.

Additional fixing of the connector to the rod by means of the axial of the pilot the decommission.

All of the power elements of the inventive hydraulic cylinder is made of medium-carbon low-alloy steels, for example, the brand 30HGSA reinforced thermo-mechanical processing.

This treatment involves the combination of two mechanisms of hardening, the plastic deformation and hardening in a single technological process.

The combined impact in relation to medium-carbon low-alloy steels can improve the whole complex of their mechanical properties, especially the ductility and toughness of the material that is most important for high-strength condition. Compared with conventional treatment gains strength during thermomechanical processing is in the order of 1020%, and the characteristics of plasticity and viscosity increase 1.52 times.

The use for the manufacture of the power components of the inventive hydraulic cylinders high-strength medium-carbon low-alloy steel can significantly reduce the size and weight, as well as to increase its durability. The result can be greatly reduced downtime craniomandibular installation and to increase its specific productivity per unit of its mass

Practice life of welded structures, mechanisms, road construction and other machines of medium-carbon high-strength low-alloy steels shows that it is economically feasible to use relatively more expensive compared to low-carbon, high-grade steel, but to significantly improve reliability and durability.

Due to the increased carbon content for welding such steels are applied special technology, providing optimum welding conditions, excluding the occurrence of cracks and providing the desired flexibility, strength and gladstonos in the heat-affected zone.

Such technology is now well developed appropriate specialized machine-building enterprises and allow to obtain a welded joint with properties equal or similar to those of the base metal.

For the radial fixing of the piston 12 and the rod 11 with the possibility of axial movement used split reference-guide rings 15, 16, 18, 19, 20, 21, 24 with bevel lock 48 of high-strength and wear-resistant polymer composite antifriction material, such as carbon-reinforced polyamide, and for sealing podkapotnogo polymer material with high anti-friction properties, for example acconpanied PTFE, and the gland rings 52, 53, 54 of providermessage oil-resistant material, such as rubber, the production of domestic firms "AGA-ALCONT".

High quality manufacture, the retaining-sealing elements specified company is rather compact, have a relatively low friction, long life, can work in a wide range of temperatures by providing relatively good integrity at pressures up to 35 MPa or more and linear speeds up to 2 m/s At its main parameters they correspond to the world standards.

Reference-guide rings eliminate the touch and the ability bully steel surfaces of the rod and the mirror shells of the housing of the hydraulic cylinder and contribute together with the combined seals increases the resources of his work due to the polishing of these surfaces by friction during operation.

Use in their designs oblique locks almost completely eliminates the risk of vibrations and squeaks in the bearings.

Reference-sealing elements of the company "AGA-ALCONT" significantly improve the lubrication of the moving parts of the hydraulic cylinder, fairly reliable and troductio more than 100 engineering companies.

In the inventive hydraulic implemented appropriate backup support-sealing elements movable joints. This significantly increases the reliability of the hydraulic cylinder and almost completely eliminated the leakage of the working fluid in the external environment.

Threaded mounting fittings 31, 32 channels 27, 28 for supplying the working fluid in its piston and the rod end 29, 30 of the inventive hydraulic cylinder is displaced in the circumferential direction with respect to each other.

The solution provides ease of wiring and connection to the threaded hose fittings hydraulic cylinder of the respective piping for supplying the working fluid in its piston and the rod end.

On the side wall 55 of the sleeve 5 of the housing 4 of the cylinder to the outside, between the threaded connection fittings 31, 32 channels 27, 28 for supplying the working fluid in its piston and the rod end 29, 30 are welded anchor mounting boss 56 with blind threaded holes 57 for fastening them mounted one-way pilot-operated check valve, providing automatic locking piston cylinder cavity in case of accidental damage located in front of hydroslate claimed cylinder mass production of specialized enterprises functionally complete protective and regulating equipment in a modular design, and on this basis to simplify the design and improve the corresponding quality indicators.

Installation of the inventive hydraulic cylinder on the end of the cantilever part retractable beams 9 a turntable 10 craniomandibular installation is complete with paw 2. At the base of the cylinder is made in two places: the lateral cylindrical surface 33 of the housing 4 in the profiled on the lodgement 58 and shank 35 - in landing slot 34 focusing its annular end face 36 to the attachment surface 59 of the beam 9.

After the exhibition the hydraulic cylinder rigidly secured in said position by plates 60, clamping it to the lodgement 58, and bolts 38 and 61.

Such mounting of the inventive hydraulic cylinder on the end of the cantilever part retractable beams turntable craniomandibular installation more reliable compared with the prototype and almost completely excludes the operation of the possibility of unauthorized turning it into landing Jack and stowage.

When the supply of the working fluid in the piston cavity 29 of the proposed RAM his rod 11 extends from the internal cavity of the housing 4 and, falling down, presses a paw 2 remote outrigger 3 become automatically self-centering anchor 14 fifth to the ground, providing a second cavity 30 of the cylinder, its piston rod 11 is drawn into the internal cavity of the housing 4 and, lifting up, pulls the anchor pad 14 feet 2 from the ground.

In the design of the inventive hydraulic cylinder is used widely used in the engineering of modern domestic materials, the best technical solution and standard manufacturing techniques.

With this in mind, it can be repeatedly reproduced from developed documentation on it in terms of mass-production engineering plants with the necessary expertise and equipment.

Currently JSC Aviaagregat" (, Samara) on the inventive hydraulic cylinder according to specifications JSC "NC Uralterminalmash developed a working documentation, which made a batch of prototypes of the specified products for lowering and hoisting the anchor-installation paws outrigger outriggers craniomandibular installation "Sinemorets-210" large carrying capacity with the following specifications:
The piston diameter, mm 100.

The diameter of rod, mm - 80.

Stroke, mm - 750.

The working fluid - mineral oil GOST 17479,3-85 with a viscosity range when operating from 10 to 500 mm2/c.

The operating temperature range, deg.:
- the environment - from -40 to +50;
working fluid from -40 to +80.

- when issued stock - 39,0.

These samples of the inventive hydraulic cylinder successfully passed Autonomous tests. The results of the automated tests confirmed the accuracy inherent in the design of the inventive hydraulic cylinder technical solutions, as well as the possibility of obtaining by carrying out the invention the above-mentioned technical effect, namely to simplify the design, reduce the size, increase reliability, the weight of perfection and improvement of Assembly and disassembly, and other technical and operational qualities.

Comprehensive tests of the inventive hydraulic cylinder comprising craniomandibular installation "Sinemorets-210" provided in the current year. The decision to mass production of the inventive hydraulic cylinder will be made in the prescribed manner after comprehensive testing.


Claims

1. The double-acting hydraulic cylinder for lowering and hoisting the anchor-installation paws outrigger outriggers of the crane-manipulator units, comprising a housing made in the form of a cylindrical sleeve with welded bottom, a removable end-to-end cap and an end connector for hard sakralen and, one-sided welded hollow rod with piston and an end connector for otstykovki paws become automatically self-centering with reference fifth, the sealing elements movable and immovable joints, wiper and channels for supplying the working fluid in the piston and the rod end with a threaded flanged fittings characterized in that it is the end of the connector housing is further provided with formed welded at its bottom on the outside and interacting as part of a turntable of the crane-manipulator with a corresponding vertically oriented and open bottom mounting socket located on the end of the cantilever part of the sliding beams, rough terrain centering shank cylindrical shape with a flat supporting-mounting end of the annular configuration and multiple evenly spaced in the circumferential direction and open on the outside blind threaded mounting holes for the bolts securing the shank in the socket beams and removable through the cover is mated with the sleeve and casing with threaded connection, the piston is made in one piece with the rod, and the end of the connector rod in the form of screwed on threads is but the place mate with the rod by means of the axial set screw, secured by cerite-top into the slot in the thread at three points by the depth of 1-1 .5 mm at an angle of 30-45for the radial fixing of the piston and piston rod, with the possibility of axial movement, used split reference guide ring with an oblique castle made of high-strength and wear-resistant polymer composite antifriction material, for example, carbon-reinforced polyamide, and for sealing of mobile connections - combined seal at the base of the sealing rings of wear-resistant polymer material with high anti-friction properties, for example, acconpanied PTFE, and the gland rings providermessage oil-resistant material, such as rubber.

2. The hydraulic cylinder under item 1, characterized in that it is the end of the connector rod provided with a concentrically located with respect to its Central threaded hole and open to an outer side in a hollow cylindrical recess to enter into it unbent hook locking washer, ensuring the fixation of the legs of the extension of the outrigger in the circumferential direction after the bend on its respective chamfer the edges of the washer.

3. The hydraulic cylinder under item 1, characterized in that it silviano thermomechanical processing.

4. The hydraulic cylinder under item 1, characterized in that it is threaded mounting fittings channels for supplying the working fluid in its piston and the rod end of the cylinder is displaced in the circumferential direction with respect to each other.

5. The hydraulic cylinder under item 1, characterized in that it is on the side wall of the cartridge casing from the outside between the threaded connection fittings channels for supplying the working fluid in its piston and the rod end is welded to the support-mounting bosses with blind threaded holes for fastening them mounted one-way pilot-operated check valve, providing automatic locking piston cavity in case of accidental damage located in front of the lock flexible hose for supplying the working fluid.

 

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