The basis of a turntable of the crane - manipulator

 

The invention relates to hoisting and transport machinery, namely the support-rotating devices crane-manipulator units of high capacity, placed mainly on chassis vehicles. The basis of a turntable contains a fixed outrigger and articulated with it turning the balance beam and bearing for installation and fixing it in swivel. The said casing is connected rigidly with the outrigger beam developed by spatial boxes. The internal cavity of the outrigger beams separated welded by a partition into two related channels of identical cross-section under a sliding beams with outriggers. On the upper end of the frame housing of the bearing unit outside fixed gear kinematically interacting with the drive pinion of the steering rack. Base design allows to implement in the rotator unit turning mechanism-based high-torque open mechanical gear driven by a motor and an endless rotation angle of the rack. The invention provides a simplification of the structure, minimizing the geometrical the salvage engineering, namely, bases bearing slewing devices crane-manipulator units of high capacity, placed mainly on the chassis of the vehicle.

Known for a number of analogues of the invention implemented in designs support-rotating devices crane-manipulator units and other kind of lifting equipment, both domestic and foreign developments (see, for example, SU 1009988, 66 23/86, 07.04.83,, SU 704888, 66 23/86, 25.12.79,, US 4693663, B 25 J 9/06, 15.09.87, and others).

Common to all of them is that the grounds specified type contain rigidly fixed, for example by welding or bolting to the respective support elements, hollow bearing to install it and fixing rotary part driven by the mechanisms on the basis of a rack and pinion cylindrical gears, in which the translational movement of the movable cylinder rack is converted into rotational motion is kinematically coupled with her gear. While structurally the rack with hydraulic cylinders move normally rigidly fixed on the base, and a gear wheel on the rotary part of the support-rotating Ostroga level of lubricating fluid, what complicates the access links of the cylindrical rack gear. If necessary, this requires complete disassembly of a turntable.

As supporting elements of the basis support-rotating device of the majority of known crane-manipulator installations typically use exploded between them in the longitudinal direction and pivotally connected to each other through a bearing stationary hollow outrigger and swing dual console Centerpoint crossmember.

While structurally, the base may contain one or two fixed outrigger beams, in which place the appropriate put forward in opposite directions beams with external outriggers.

In the first case is greatly restricted by the base take-out outriggers, and a second increase the size and weight of the base.

However, these technical solutions found quite widely used in the well-known crane-manipulator units, mostly small-and medium-duty. This circumstance is caused mainly by the presence of well-developed components.

The use of such technical resellername complexity of the design and technology of their bases with all the ensuing consequences and, in particular, to a significant increase of the geometrical sizes of the respective bearing elements and poor weight design perfection. This is due mainly to the fact that with the increased capacity of the crane-manipulator settings accordingly increases the moment of resistance to rotation of the rack and to overcome it in such devices typically do not use single and dual rack and pinion cylindrical gear (see, for example, U.S. Pat. GDR 2709295, B 25 J 17/00, 1985) and, accordingly, increase the bearing capacity of the Foundation, for example, by thickening of the wall of its bearing Assembly and supporting elements.

From among the known analogues of the proposed technical solution closest (prototype) can serve as the basis of a turntable of the crane ISS-4032, shown in Fig. 3 (page 27), 4 (page 29) and 6 (page 32) "Guide for operators (drivers) for the safe operation of cranes" (M, NGOs MBT, 1995, LBC 32.816 N, P 62, UDC[221.856.8-5: 658.382.3]: 658.386.05), author N. A. Shishkov.

The specified radix contains exploded between them in the longitudinal direction and pivotally connected with each other, a stationary hollow outrageously and placed between them a vertically oriented hollow body of the bearing unit in the form of a pipe, equipped with welded end frames with mounting slots under the bearings to install it and fixing swivel (columns), and the said casing is connected with a fixed outrigger beam and cantilever welded to the side surface of the pipe longitudinal cylindrical tubular axle beam beams using spatial developed a welded box formed of two spaced apart from each other in height horizontal plates polygonal in plan configuration with a through hole, profiled on the external contour mating with them plots of the specified body, closed perimeter on each other through the body fixed outrigger beams and welded to the side edges of the flat vertical wall.

To rotate the rack as part of a turntable of the crane ISS-4032 used the mechanism of the above type based on a single rack cylindrical gear driven by hydraulic cylinders.

This fixed outrigger beam base of this device is made of welded from bent sheet profiles of the G-shaped cross-sectional configuration forming a single channel DL the wall.

As noted design features a fixed outrigger beams do not allow to realize the maximum possible base take-out outriggers, the increase provided by the building placed in the cavity of the specified beam retractable beams with external telescopic outriggers, and this too complicates the design of a turntable with all the ensuing consequences.

Bearing arrangement of a turntable specified crane used a combination of bearings and roller bearings, with about equal to an outer diameter that is not optimal for the crane-manipulator units of high capacity due to significant friction losses in him.

The present invention is to eliminate the disadvantages of the above known analogues, including the closest ones, and in particular, to simplify the design, the minimization of the geometric dimensions and weight, to provide the necessary bearing capacity and taking into account the preferential use of the claimed base composition of the crane-manipulator units of high capacity and improve its performance in the inventive Foundation.

The essential features characterizing the claimed basis of a turntable of the crane-manipulator, include: - the presence of spaced between each other in the longitudinal direction and pivotally connected to each other stationary hollow outrigger and swing dual console beam cross-beams welded type with mounting-mounting elements; presence placed between the fixed outrigger and the balance beams vertically oriented hollow housing of the bearing unit made in the form of a pipe, provided with welded end frames with mounting slots under the bearings to install it and fixing swivel turntable; connection housing of the bearing unit with a fixed outrigger beam and cantilever welded to the side surface of his pipe longitudinal cylindrical tubular axle beam beams using spatial developed a welded box formed of two spaced apart from each other in height horizontal plates polygonal in plan configuration with a through hole, profiled on the external contour mating with the CTL and welded to the side edges of the flat vertical wall; - execution of shelves and side walls of the stationary outrigger beams from a flat thin-walled profiles with the division of the internal cavity centrally located therein a vertical welded by a partition into two adjacent identical channel sections placed under them retractable beams with external outriggers, and mentioned channels muted by one of their ends welded plates with holes for the passage of the respective hydraulic communication lines, and the open ends of the channels facing in opposite directions and are supported by the flat face Vorotnikova welded amplifiers U-shaped configuration with the developed height and facing the top of the backrest; - perform one of the consoles balance beams shorter than the other; - execution of the cylindrical axis of the beam thin-walled beams with welding in its internal cavity of the flat reinforcing disk; - displacement of the housing of the bearing unit relative to the middle fixed outrigger and swing dual console balance beams; - execution of connecting the end frames of the housing of the bearing unit of pipe in the form of a thin conical shell, equipped with one starou welding stationary outrigger beams, and on the diametrically opposite side - hole shank cylindrical axis of the balance beam; - performance top end of the frame housing of the bearing unit in comparison with the lower enlarged diameter not less than 1.5 times;
supplying the top end of the frame housing of the bearing unit outer cylindrical ledge, on which is rigidly fixed by pressing with additional fixation of multiple evenly spaced around the circumference of the axial pins gear kinematically interacting as part of a turntable with the drive pinion of the steering rack;
supplying the top end of the frame housing of the bearing unit located under the gear wheel flat multi-faceted flange rigidly associated with the corresponding faces of the upper plate of the box and the adjacent shelf fixed outrigger beams using inclined located and supported by the ribs flat welded panels, forming together a dome-shaped arch pyramid-shaped, closed on the bottom plate of the box through the top plate and the cylindrical axis of the balance beam supporting peregi side wall mounting-mounting element fixed outrigger beams, located in the area of the bottom plate of the enclosure, in the form of a flat area with developed along the length of the shelves, rigidly associated with the supporting and side surfaces of the beams and slab with reinforcement bottom shelf in the middle part with two sides welded gussets, and the outer side wall Assembly of the connecting element located at one side of said plate, in the form of a beam covering the bottom flat welded frame U-shaped configuration with the developed height backrest rigidly mated by welding the junction their shelves with the corresponding side surfaces of the beam, and the back with its bearing surface and is welded thereto in this area is flat lining with reinforcement in the middle part of the same welded gussets;
- execution in the body of the bottom plate boxes in the overlap zone, the support surface of the fixed outrigger beams at equal distances from the lateral edges of the through-hole wall which is welded to the surface across the diameter.

Matching in the prototype and the claimed invention are the first three of the essential features described in this list, and others distinctive.

This practicesin way (to some extent) affect achieved in the implementation of the claimed invention, the technical result, i.e. is it a causal relationship.

The nature of the specified effect, in relation to each of the distinguishing characteristics are discussed below in the explanation of the essence of the claimed invention.

The invention is illustrated by drawings.

In Fig. 1 - General view of the claimed grounds of a turntable of the crane-manipulator.

In Fig. 2 - view And on top of the base.

In Fig. 3 - view B bottom on the base.

In Fig. 4 is a cross section In a fixed outrigger beam Foundation.

In Fig. 5 is a view of the City left on base.

In Fig. 6 - look On the right at the base.

In Fig. 7 is a longitudinal horizontal section e-E fixed outrigger beam Foundation.

In Fig. 8 is a view W front swivel dual console balancing beam Foundation.

In Fig. 9 is a cross-section And the base at the location of the bearing unit.

In Fig. 10 is a General view of the housing of the bearing unit with welded thereto the upper plate developed spatial trunking base.

In Fig. 11 is a view of the top bearing welded thereto the upper plate of the trunking base.;
In Fig. 12 is a view L side of the bearing with n is the first node of the Foundation in the area of the flat multi-faceted flange of the upper end of the frame.

In Fig. 14 is a vertical cross-section H-H of the housing of the bearing unit base in the area of welded thereto the upper plate of the box.

In Fig. 15 - external element P with the image of the fragment is attached to the upper end of the frame housing bearing Assembly toothed wheel base.

In Fig. 16 is a cross section R-R mounted on the upper end of the frame housing bearing Assembly toothed wheel base.

In Fig. 17 - view From the spatial-developed box base from the location of the cylindrical axis of the swivel dual console balance beam (rotary dual console balance beam conventionally not shown).

In Fig. 18 is a General view of the upper plate of the developed spatial trunking base.

In Fig. 19 is a vertical cross-section T-T trunking base in the area of the reinforcing ribs on the inner surface of one of its vertical walls.

In Fig. 20 is a cross section y-Y fixed outrigger beams of the base zone reinforcement of its external lateral wall mounting-mounting element made in the form of a U-shaped flat welded frame.

In Fig. 21 is a cross section f-f of the base area will Supplement what I do, made in the plate holes.

In Fig. 22 - axonometric image of the base (the cog wheel and swivel dual console balance beam conventionally not shown).

In Fig. 23 - axonometric image of a base installed in the channels fixed outrigger beams retractable beams with external outriggers (retractable beams drawn into these channels, support legs outriggers raised to its extreme upper position).

In Fig. 24 - axonometric image of a fixed outrigger beams grounds extended from its channel beam with a remote outrigger (reference paw outrigger lowered to the lowest position).

In Fig. 25 is a General view of a turntable of the crane-manipulator of high capacity industrial base, in which are mounted rack with its rotation and sliding beams with external outriggers.

In Fig. 26 is executed is a perspective view of the power diagram of the inventive base image act on it operational loads.

In Fig. 27 is executed is a perspective view of the power diagram of the inventive base depicting reactions realized from acting on his ex the first finite element pattern of the stress-strain state of structures when exposed to an external power operational factors.

The claimed basis 1 turntable 2 crane-manipulator, mainly large-capacity, contains exploded between them in the longitudinal direction and pivotally connected with each other, a stationary hollow outrigger and swing dual console beam transverse beams 3 and 4 welded type with mounting-mounting items 5-8 and placed between them a vertically oriented hollow body 9 of the bearing unit 10 in the form of a pipe 11, provided with welded end frames 12, 13 with mounting slots 14,15 under the bearings 16, 17, to install it and fixing the rotary stand 18, with the above mentioned body associated with a fixed outrigger beam and cantilever welded to the side surface of the pipe longitudinal cylindrical tubular axis 19 balance beams using spatial developed weld box 20, formed of two spaced apart from each other in height and horizontal plates 21, 22 polygonal in plan configuration with the through holes 23, 24, profiled on the external contour mating with them areas specified housing, the closed perimeter on each other through the body fixed �32D/chr/247.gif">30.

Articulation stationary outrigger and swing dual console balance beams through the bearing and welded to it a longitudinal cylindrical axis provides, due to the possibility of their relative rotation about a specified axis, a good base Foundation in the areas of the Assembly of the connecting elements 58 on the chassis of the vehicle on four points.

Top and bottom shelves 31, 32 and side walls 33, 34 fixed outrigger beams 3 of the base 1 is made from a flat sheet profiles. The internal cavity is divided centrally located therein a vertical welded by a partition 35 for two, capped at one of the ends welded plates 36 with holes 37 for the passage of the respective hydraulic communication lines 38, adjacent channel 39, 40 are identical under section placed in them retractable beams 41, 42 with external outriggers 43,44.

Open ends of the channels 39, 40 facing in opposite directions and are supported by the flat face Vorotnikova welded amplifiers 45, 46 U-shaped configuration with the developed height and upward headboards 47.

ith minimize its weight maximum possible base between the extension outriggers 43, 44 without building retractable beams 41, 42 telescopic. In this case the flat end collar amplifiers 45, 46 provides a reduction in their stress in the design of thin-walled fixed outrigger beams 3 from the action of concentrated forces in places of contact with retractable beams 41,42 to an acceptable level.

One of the consoles 48, 49 balance beam 4 is made shorter than the other, and its cylindrical axis 19 is thin-walled. While in the inner cavity 50 of the cylindrical axis 19 of the specified beam 4 is welded to a flat supporting disk 51.

Truncation of one of the consoles balance beam helps to release within the specified area corresponding mounting space required to accommodate the attachments of a turntable, such as a tank. The design of the cylindrical axis 19 Centerpoint thin-walled beams with reinforcement placed in the internal cavity of her flat welded disc reduces the corresponding voltage from acting in a specified area of operational loads to acceptable levels and to increase the weight of the perfection of the claimed grounds.

The housing 9 of the bearing unit 10 is shifted A its end frames 12, 13 pipe 11 made in the form of a thin conical shell and equipped with one of the lateral sides of the transversely oriented through a local cut-out 52, profiled outer contour mating with her on the spot welding stationary outrigger beams 3, and on the diametrically opposite side of the hole 53 for the shank cylindrical axis 19 balance beams 4.

The upper end of the frame 12 of the aforementioned housing of the bearing unit 10 is made in comparison with the bottom 13 of the enlarged diameter not less than 1.5 times and equipped with an external cylindrical ledge 54 on which is rigidly fixed by pressing with additional fixation of multiple evenly spaced around the circumference of the axial pins 55 of the toothed wheel 56, kinematically interacting as part of a turntable 2 with the drive pinion 57 mechanism 58 of rotation of the rack 18, and placed under the wheel of a flat multi-faceted flange 59. The flange 59 of the frame 12 is rigidly connected with the respective faces of the upper plate 21 of the box 20 and the adjacent shelf 31 fixed outrigger beams 3 by means of inclined spaced and supported by the ribs 60 flat welded panels 6173.

Spatial reinforcing partition wall 70 is placed in a vertical plane passing through the axis 19 balance beams 4. The upper crosspiece 71 rests on the inclined panel 62 and the top plate 21 of the box 20 and the side surface 74 of the housing 9 of the bearing unit 10.

The intermediate crosspiece 72 supporting walls 70 is associated with the upper plate 21 and the vertical wall 29 of the box 20, the upper wall 75 of the cylindrical axis 19 balance beams 4 and the side surface 74 of the housing 9 of the bearing unit 10.

The lower crosspiece 73 reinforcing partition 70 is associated with the bottom wall 76 of the cylindrical axis 19 balance beams 4, the side surface 74 of the housing 9 of the bearing unit 10, a vertical wall 29 and bottom plate 22 of the box 20.

The above displacement of the housing of the bearing unit allows you to release with one of the parties to declare the Foundation of the required installation space, the result of which can be implemented more rational than in the prototype, the ratio of the geometric dimensions of the individual parts of the boom system of the crane-manipulator and the scheme is, especiauy optimal transverse alignment of the specified unit as a whole and convenient access to the lower part of the turntable.

The design of the pipe 11 can reduce the transverse dimension of the base by an appropriate "ramping" in her stationary outrigger beams, to simplify the technology of interfacing with it the cylindrical axis of the balance beam and to substantially increase the diameter of the upper end of the frame housing of the bearing unit compared to the bottom. The latter circumstance allows to approximate the carrying capacity of the specified portion of the bearing unit of the claimed bases for the relevant parameters are well known in the technique of rotation of the circle (see, for example, OST 22-1401-79. "Pivot roller single row with the teeth of the internal toothing. Technical conditions". The Ministry of construction, road and municipal engineering. M. UDC 621.873.018.6), the characteristic feature of which is the high rigidity swivel bearing at the small size of its height.

Supply the upper end of the frame housing of the bearing unit is fixed on its outer surface a toothed wheel sootvetstvovali, more progressive in comparison with the prototype, the rotation mechanism of the rack-based, high-torque open gear driven by a motor and an endless rotation. In this case, greatly simplifying installation rack bearing Assembly and easier access to the parts of the gearing.

The design and the selected method of attachment to the gear on the upper end of the frame housing of the bearing unit allow to consider body bonded between a wheel rim and neck of a frame as a single unit, allowing you to significantly reduce their thickness, which gives a corresponding reduction of the geometric dimensions of this zone and the gain in mass.

The presence at the upper end of the frame housing of the bearing unit beneath the toothed wheel outer flat multi-faceted flange, greatly facilitates the technology of forming the above-mentioned dome pyramid shape.

The outer side wall 77 of the Assembly of the connecting element 5 fixed outrigger beams 3, located in the area of the bottom plate 22 of the box 20, made in the form of a flat area with developed along the length of the shelves in the middle part with two sides welded gusset plates 82,83.

The outer side wall 84 of the Assembly of the connecting element 6 fixed outrigger beams 3, located in the side of said bottom plate 22 of the box 20, made in the form of covering the beam bottom flat welded frame U-shaped configuration with the developed height backrest 85, rigidly mated by welding the junction their shelves 86, 87 with the corresponding side surfaces 81, 88 beams, and back - with its bearing surface 80 and is welded thereto in this area is flat lining 89 reinforcements in the middle part of the same welded gusset plates 82,83.

These technical solution provide adequate strength and rigidity of the claimed basis in the areas of the mounting-mounting elements fixed outrigger beams, used for home and fixing it to the chassis of the vehicle.

In the body of the bottom plate 22 of the box 20 in the overlap region of its bearing surface 80 fixed outrigger beams 3 at equal distances from the lateral edges 90, 91 is a through hole 92, the wall 93 which is welded around the perimeter to the surface of the beam.

The specified technical solution allows the I.

In design support-rotating devices crane-manipulator units base occupies a special position. In his bearing Assembly is mounted and fixed in the radial and axial directions of the rotary hour. In the claimed basis of fixation of the rack by means of two spaced apart along the height single row tapered roller bearings 16, 17. These bearings provide the necessary freedom and ease of rotation of the rack.

In the Foundation of the support-rotating device of the majority of known crane-manipulator installations embed usually appropriate mechanisms rotate the racks. As part of the claimed grounds provided by only one of the parts of this mechanism is rigidly fixed to the outside of the upper frame 12 of the housing 9 of the bearing unit 10 of the toothed wheel 56, kinematically interacting as part of a turntable 3 with the drive pinion 57.

In the stationary outrigger beam have put forward in opposite directions in the transverse direction of the beam with an external outriggers. Using with corresponding mounting-mounting elements fixed outrigger and swing dual console>/p>The Foundation is one of the main load-bearing structural elements bearing slewing devices crane-manipulator units, perceiving the bending moment of the load and boom, the reactive torque generated by the rotation mechanism of the rack, as well as efforts from the extension of the outriggers.

When performing a crane-manipulator operations associated with the lifting, lowering and regional movement of goods from the rotary stand 18 on the base 1, in General, are all six components of force factors (see Fig.26, 27):
- forces (axial - vertical and two transverse - horizontal);
- moments (two vertical and one horizontal planes).

These power factors applied to the design of the claimed base 1 are implemented in the form of the following loads:
- axial (vertical) force acting on the upper angular contact tapered roller bearing 16;
horizontal components of the forces acting on both bearings 16, 17 of the base form of a horizontal radial distributed forces;
- moments in vertical planes, acting on both the bearings and the base in a horizontal radial distributed usie horizontal tangential force, attached to a toothed wheel 56 of the base, and a horizontal radial distributed reactions acting on both of the bearing base, and a low friction torques in them.

All data transmitted from the rotary stand 18 load perceived by the body 9 of the bearing unit 10 and the toothed wheel 56.

From the side of the housing 9 of the bearing unit 10 and the gear wheel 56 of the load is transmitted to the stationary outrigger and swing dual console balance beams 3 and 4:
from the upper bearing 16 and the gear wheel 56 on the vertical wall 2830 boxes 20 and stationary outrigger beam through the inclined panel 6168 dome 69 boxes, almost completely relieve console towering above the top plate 21 part 94 conical shell 11 of the housing 9 of the bearing unit 10. At the same time to reduce the loads acting on the welds at the joints of the inclined panels 6163 dome 69 and vertical walls 2830 boxes 20 used horizontal (ceiling) plate 21, which is directly linked with top shelf 31 fixed outrigger beams 3 iela;
from the bottom of the bearing 17 through the lower horizontal plate 22 of the box 20 directly on the bottom shelf 32 fixed outrigger beams 3;
from vertical walls 2830 box 20 on the rotary dual console balancing beam 4 through its cylindrical tubular axle 19, which is based on a vertical wall 29 of the box and conical shell 11 of the housing 9 of the bearing unit 10, which in them is fulfilled the corresponding holes 53 and 95. At the same time to reduce the loading of the wall 29, the tapered shells 11 and welded joints with their cylindrical tubular swivel axis 19 balance beams 4, as well as increasing local resilience located in a specified area of the respective thin-walled structural elements of the base used vertical supporting wall 70 of the set of flat welded jumpers 7173 and placed in the inner cavity 50 of the axis 19 to the center location of the beam 4 welded reinforcing disk 51, rigidly connecting by means of welded joints of the wall 29, a conical shell 11, the axis 19, an inclined panel 62 of the code 69 and plates 21, 22 of the box 20 into one. Local stability of the rest of inclined panels of the specified code and ver is

Fixed outrigger beam 3 of the claimed base is a thin-walled beam structure of the closed profile is constant along the length of the cross-section, locally reinforced in places with concentrated and distributed forces and rigidly connected to the frame 20 by means of respective welded joints.

To reduce the weight of the structure of its internal cavity using a centrally located therein a vertical weld bulkhead 35 is divided into two adjacent channel 39, 40 are identical under section retractable beams 41, 42 with external outriggers 43,44.

Geometrical parameters of the profile specified beam (width, height, thickness of the shelves 31, 32 and sides 33, 34) is selected from the conditions for minimum weight, the acceptable dimensions of the structure and its resistance to bending.

Concentrated forces acting on the beam 3 places:
- attachment to the body 9 of the bearing unit 10 and the frame 20;
- attachment to the chassis of the vehicle from the reference sites chassis and fastening elements her to him;
- contact with retractable beams 41,42 by these beams.

In the fixing chassis 9 of the bearing unit 10 and the duct 20 of the base 1 to the beam 3 supporting e is to the vehicle's chassis reinforcing elements are assembling and connecting elements 5, 6 beams 3, at the same time perceiving the appropriate load and by threaded fasteners.

In places of contact stationary outrigger beams 3 with retractable beams 41, 42 of the reinforcing elements are:
- at the ends of the open ends of the channels 39, 40 collar welded amplifiers 45, 46, which construction provides strength unloading the top shelf 31, and connecting it and the bottom shelf 32 and side walls 33, 34 of welds, and the immediate transfer of the concentrated forces on the said wall of the stationary outrigger beams;
on the bottom shelf 32 is an external side walls 77 and 84 of the mounting and connecting elements 5, 6 fixed outrigger beams 3. These elements, in addition to its direct function, provide power unloading the lower shelf 32, and welds connecting walls 33, 34 and the partition wall 35 with shelves 31, 32 and the transfer of the concentrated transverse force on the outer side walls 34, 35 and the bottom shelf 32 of the beam 3, and the plate 22 of the box 20.

Swivel dual console balance beam 4 is a thin-walled beam design variable along the length of the profile, making it ravnopravnosti bending and shear, and the investigator-performance of the claimed bases achieved, basically, the optimal power scheme design and the specifics of its inherent technical solutions, in particular:
- use when shaping stationary outrigger and swing dual console balance beams 3 and 4, the housing 9 of the bearing unit 10 and connecting them developed spatial boxes 20 and the base 1 in General, the rational design and layout decisions;
- the placement of the gear mechanism 56 58 rotation of the rack 18 on the outer surface of the upper frame 22 of the housing 9 of the bearing unit 10;
- selection of circuit design solutions, providing the most direct transmission from one component to another;
- choice of the optimal ratio of geometric dimensions and rational forms of details;
- combining multiple security functions in a single part;
- wide use of the design of thin-walled elements with local reinforcements them in the necessary places, etc.

The optimal design of the claimed grounds of technical solutions is confirmed by the applicable strength calculations performed on the basis of progressive methodologies using modern computer.

the frame design of the claimed grounds (see Fig. 28) shows that implemented it under the influence of the operating load voltage reaches a maximum in the coupling zone of the conical shell 11 of the housing 9 of the bearing unit 10 with top shelf 31 fixed outrigger beams 3 and the side wall Assembly of the connecting elements 5, 6, used for home and fixing it to the chassis of the vehicle.

However, if the selected technical solutions they do not exceed the norm.

Composite fragments of the structure of the claimed reasons, mainly, have a fairly simple configuration. It is used widely used domestic materials and typical manufacturing technology.

With this in mind, it can be repeatedly reproduced developed by him documentation in terms of serial production at specialized engineering plants with the necessary processing equipment, trained and certified personnel and appropriate regulatory resolution database.

Currently, JSC "NC Uralterminalmash" on the claimed basis of the developed working drawings, which made its full-scale prototype. Trials experienced aneroussa at the end - early next year.

The possibility of obtaining by carrying out the invention the above-mentioned technical result consists in the simplification of the structure, minimizing the geometric dimensions and weight, to provide the necessary bearing capacity and taking into account the preferential use of the claimed base composition of the crane-manipulator units of high capacity and improve its technical and operational qualities evident and confirmed by the calculations.


Claims

1. The basis of a turntable of the crane-manipulator, mainly large-capacity, containing spaced between each other in the longitudinal direction and pivotally connected with each other, a stationary hollow outrigger and swing dual console beam cross beam welded type with mounting-mounting elements and placed between them a vertically oriented hollow body of the bearing unit in the form of a pipe, provided with welded end frames with mounting slots under the bearings to install it and fixing swivel, and mentioned body associated tion of the tubular axle beam beams using spatial developed welded boxes, formed of two spaced apart from each other in height horizontal plates polygonal in plan configuration with a through hole, profiled on the external contour mating with them areas specified housing, the closed perimeter on each other through the body fixed outrigger beams and welded to the side edges of the flat vertical wall, characterized in that it shelves and side walls of the stationary outrigger beams of the base is produced from a flat thin-walled profiles, and its inner cavity is divided centrally located therein a vertical welded by a partition into two adjacent identical channel sections placed under them retractable beams with external outriggers, moreover, the mentioned channels muted by one of their ends welded plates with holes for the passage of the respective hydraulic communication lines, and the open ends of the channels facing in opposite directions and are supported by the flat face Vorotnikova welded amplifiers U-shaped configuration with the developed height and upward backs, one of the consoles balance beam is made shorter than the other, adisc, bearing the midpoint of the fixed outrigger and swing dual console balance beams, and between the end frames pipe made in the form of a thin conical shell and provided on one side of the transversely oriented through-cut, profiled outer contour mating with her on the spot welding stationary outrigger beams, and on the diametrically opposite side of the hole for the shank of a cylindrical axis of the balance beam, the upper end of the frame specified housing bearing unit made in comparison with the lower enlarged diameter not less than 1.5 times and equipped with an external cylindrical ledge, on which is rigidly fixed by pressing with additional fixation of multiple evenly spaced around the circumference of the axial pins gear kinematically interacting as part of a turntable with the drive pinion of the steering rack, and placed under the wheel of a flat multi-faceted flange rigidly associated with the corresponding faces of the upper plate of the box and the adjacent shelf fixed outrigger beams using inclined raspolozhenennyh code pyramidal shape, closed on the bottom plate of the box through the top plate and the cylindrical axis of the balance beam supporting wall formed from a set of corresponding thin-walled welded jumpers.

2. The basis under item 1, characterized in that it is external lateral wall mounting-mounting element fixed outrigger beams, located in the area of the bottom plate of the box, made in the form of a flat area with developed along the length of the shelves, rigidly associated with the supporting and side surfaces of the beams and slab with reinforcement bottom shelf in the middle part with two sides welded gussets, and the outer lateral wall mounting-mounting element located at one side of said plate, made in the form of covering the beam bottom flat welded frame U-shaped configuration with the developed height backrest, hard mated by welding the junction their shelves with the corresponding side surfaces of the beam and back - with its bearing surface and is welded thereto in this area is flat lining with reinforcement in the middle part of the same welded gussets.

3. The basis under item 1, characterized in that it is in the body ninabelevich edges is a through hole, the wall which is welded to the surface across the diameter.

 

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The invention relates to the field of hydraulic manipulators installed mainly on vehicles, and can be used in the mechanisms of rotation of the main axis hydraulic cranes and articulated manipulators

FIELD: materials handling facilities.

SUBSTANCE: invention relates to devices for taking loose materials from pile and stowing them in layers differing in content of useful component in each layer with simultaneous averaging in process of taking material from pile and it can be used in open stores. Proposed loose material stower-gripper has boom of gripper and boom of stower of lift-lower type turnable in horizontal plane by slewing circle installed on base and drives to turn booms of gripper and stower. Slewing circle is made in form of fixed rings rigidly secured to each other and to frame of base, two coaxially arranged movable rings with gear rims resting of fixed rings through solids of revolution. Movable rings are non-connected mechanically, one movable ring being furnished with external teeth rim coupled with gripper boom turning drive, and the other is provided with internal teeth rim coupled with stower boom turning drive. Each toothed rim has independent self-contained system to regulate geometrical parameters of mating of solids of revolution with movable and fixed rings. Base be made in form of self-propelled chassis or stationary portal. Gripper boom has gripping member of rotary or scraper type.

EFFECT: reduced overall dimensions of stower-gripper, facilitated maintenance.

4 cl, 4 dwg

FIELD: forestry, in particular, processing apparatuses for tree harvesting machine used in tree felling and bunching equipment.

SUBSTANCE: supporting-rotating apparatus has base and rotary platform between which are positioned three rotating wheels and two intermediate members, said intermediate members being mounted between rotating wheels. Central brake is installed on rotary platform and is cooperating with base through joining link which is connected with its upper end through Hooke's universal joint and central brake to rotary platform and with its lower end through the same Hooke's universal joint to base. Link is adapted for changing its length by means of, for example, splined joint. Intermediate and lower rotary wheels are equipped with brakes. Intermediate rotary wheel brake is mounted on upper intermediate member. Lower rotary wheel brake is mounted on lower intermediate member. Rotary wheels are arranged at an angle with respect to each other. On rotation of rotary platform, rotation mechanism cooperates with one of rotary wheels. During operation on slopes, individual members of apparatus are rotated to thereby level rotary platform until it is rotated and set in horizontal plane.

EFFECT: increased efficiency by employing machine for felling and bunching trees on uneven felling areas and on slopes, reduced labor intensity, and provision for creating comfortable working conditions for operators.

3 cl

Slewing circle // 2280611

FIELD: mechanical engineering.

SUBSTANCE: invention relates to slewing circles of cranes and other load-lifting machines. Proposed slewing circle consists of fixed and movable upper and lower races interconnected by bolts, and solids of revolution placed in between. Lower movable race is connected with gasket made of high-strength material installed from lower side of race. Said gasket can be sectional, with butts located in non-loaded zones and can be secured by bolts or glue.

EFFECT: increased durability of slewing circle.

3 dwg

FIELD: mechanical engineering; tower cranes.

SUBSTANCE: invention relates to means of tightening bolts or nuts of larger-size bolted joints. Method includes manual turning in and off of bolt of bolted joint by rotating bolt head by lever wrench until definite axial force appears in threaded joint with subsequent tightening of bolt by mechanical tightening member. Prior to tightening bolt or prior to its backing off, wrench is connected with first bolt of bolted joint of slewing circle, and then lever of member is connected with second bolt of bolted joint, then lever of member and lever of wrench are connected in plane of arrangement of bolt heads. Wrench and member lever are locked to prevent displacement in vertical direction, and then distance between lever of wrench and second bolt of bolted joint is decreased or increased. Invention provides three design versions of device for implementing the method.

EFFECT: provision of compact device for use in confined spaces.

5 cl, 9 dwg

Turntable // 2297972

FIELD: materials handling facilities.

SUBSTANCE: invention relates to turntables of cranes and other load lifting machines. Proposed turntable consists of fixed and movable upper and lower rings and roller solids of revolution arranged in cress-cross manner and installed in raceways. Ring step formed on raceways by rollers worn along ring is eliminated by sphere of ball solids of revolution installed between roller solids of revolution.

EFFECT: increased service life turntable.

4 dwg

FIELD: forest engineering.

SUBSTANCE: supporting-and-rotating apparatus has roller-type rotating support having lower immovable part rigidly fixed on frame of self-propelled chassis and equipped with toothed crown on its inner circumference. Rotating platform is rigidly fixed on upper movable part of support and handler is mounted on said platform. Rotation mechanism for rotating platform with handler in horizontal plane relative to frame of self-propelled chassis is also fixed on movable part of support. Platform rotation mechanism has engine and reducer with drive gear rigidly fixed on output shaft, said drive gear being meshed with toothed crown of immovable part. Device for shifting of cantilever of drive gear shaft is made in the form of U-shaped frame whose sides are extending in horizontal plane, have different lengths and are equipped with openings wherein drive shaft with drive gear is introduced through bearing units. U-shaped frame is joined with its longer side to rotating platform.

EFFECT: elimination of misalignment in drive gear and toothed crown teeth meshing to thereby enhance reliability and prolong service life of apparatus.

3 cl, 4 dwg

Turning drive // 2323153

FIELD: mechanical engineering.

SUBSTANCE: invention can be used in devices designed for providing turns in horizontal or vertical planes. Proposed turning drive contains motor with brake, reduction gear, friction mechanism to limit maximum torque on reduction gear shaft and differential mechanism, all mounted on support and turnable (movable) parts of object. Motor is connected with input shaft of reduction gear on output shaft of which ring main gear is secured, being in meshing with gear rim. Differential mechanism is made in form of planetary train with epicyclic gear, sun gear, carrier and planet pinions. Sun gear is connected with motor shaft, carrier is connected with input shaft of reduction gear, and epicyclic gear is mechanically coupled with said friction mechanism through gearing.

EFFECT: improved dynamic and service characteristics of turning drive.

9 cl, 4 dwg

Turn drive // 2328442

FIELD: mechanics.

SUBSTANCE: invention can be used in devices designed for turning in a horizontal or vertical plane. The turn drive contains a tooth rim meshing with two identical main gears; the said rim is assembled on a turning portion of the object, this turning portion is installed with a support component on the base whereon an electric motor, a brake mechanism and a reducer are arranged. The electric motor via a coupling is connected to an input shaft of the reducer which includes a frictional mechanism to limit a maximum torque at the input shaft of the reducer, self braking worm gear and two differential mechanisms. Each of the differential mechanisms is made as a planetary drive equipped with an epicyclic gear, a sun gear, a carrier and satellites. One of the main gears is secured to the shaft made as one whole with the carrier of the first planetary gear, the axis of which is geometrically coupled with the central axis of the latter. The other main gear is fixed on the shaft installed in the case of the reducer; whereon the gear is attached meshing with the gear made as one whole with the epicyclic gear of the first planetary gear mechanism. The sun gear of the second planetary gear mechanism is connected to the shaft of the motor; epicyclic gear of the planetary gear mechanism by means of tooth meshing is kinematically tied to the above said friction mechanism. The sun gear of the first planetary gear mechanism is secured on the shaft which is kinematically tied with the carrier of the second planetary gear mechanism via the said self braking worm gear.

EFFECT: increased reliability of operation, improvement of dynamic and operational characteristics of a turn drive.

6 cl, 7 dwg

Slewing ring // 2335453

FIELD: transportation.

SUBSTANCE: slewing ring contains fixed and movable rings with running paths contacting with rolling bodies located between them. Cross-section of running paths profile represents square equally inclined to ring base, with radial recesses made on each of its sides, and running paths consist of 8 rectilinear and 4 radial surfaces located along diameter of ring running paths centre. In running paths with rectilinear surfaces rolling bodies of roller-type are installed, and between them/in running paths with radial surfaces - rolling bodies of ball-type, at that, balls diameter exceeds rollers diameter.

EFFECT: increase of load-carrying capability of running paths and lowering of contact loads.

2 cl, 6 dwg

FIELD: mechanics.

SUBSTANCE: support-rotating device (SRD) incorporates rotary-roller support with its lower part rigidly attached to the self-propelled chassis frame and furnished gear ring arranged along its outer edge, and its upper movable part accommodating platform rigidly fixed thereon. The platform supports manipulator and mechanism to turn the said platform with the manipulator horizontally and relative to the self-propelled chassis frame, the latter being furnished with a motor and a reduction gear with its output shaft provided with a drive gear in mesh with the aforesaid gear ring of the support fixed part. A rotary plate is fitted on the reduction gear output shaft, furnished with additional gears driven from the drive gear via a flexible link, e.g. a roller chain and lantern gears, one of them being fitted on the drive gear shaft, the others on the additional gear shafts. The said additional gears are in mesh with the fixed support gear ring.

EFFECT: longer life of SRD and machine proper.

4 cl, 2 dwg

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