The intake device
The invention relates to the mechanization of irrigation in agriculture, and is intended for collecting water from open irrigation network and water supply to sprinkler machines in motion. The intake device comprises a suction pipe with an acceptance filter, mesh, collector nozzles Hydrotreating. The reservoir is hydraulically connected through a tube with the pressure side of the pump. The tube connection of the collector pump is provided with a shut-off body, for example a valve. The intake device has a reflector and sediment screen. The reflector is placed under the receiver filter. The screen is mounted under the net by a pair of brackets. Manifold with nozzles Hydrotreating mounted on brackets between the screen 4 grid. The net has accelerated the dismantling and mounted in the guide housing of the receiving filter. The grid is provided with a pair of handles. The grid is made in the form of corrugated plates with alternating protrusions and depressions. Nozzle manifold Hydrotreating is oriented along the troughs of the corrugated plate grid. In the case of the receiving filter f are mounted in the form of blades of rubberized material and congresa on the working surface. The grid is provided with a locking device raboteg the knowledge of the elastic element with a pair of holes on the side panels and installed them with the opportunity of moving rods. Each rod has a curved hook at one end. The rod locking device missing in the holes of the mesh. U-shaped elastic element is placed in one of the troughs of the corrugated plate grid. On the side walls of the U-shaped elastic element between the pairs of holes are made slits. The intake device will ensure uninterrupted supply of irrigation water from the open channel in the nozzle sprinkler irrigation sprinkler irrigation. 8 C.p. f-crystals, 10 ill.
The invention relates to the mechanization of irrigation in agriculture, and is intended for collecting water from open irrigation network and water supply to sprinkler machines in motion.
A device for sampling water from closed irrigation networks in motion, including two intake head connected to the pipeline machine flexible hoses and movable along the guides of the frame by moving carriages, and hydrants with roller rinks, in which, to increase militantes distance, the frame of the device is made in the form of two lap farm, on the upper belt which has two parallel rails for moving carriages, and Nijni. A. M. CL4. A 01 G 25/09. Device for sampling water from closed irrigation network in motion // N. I.Manera, A. F. Copies, S. N. Boldyrev (USSR). - Application No. 3749634/30-15; Claimed 16.04.1984; Publ. 15.02.19865, bull. No. 6 //Open. The invention. - 1986. - №6).
The disadvantages of this device in relation to the problem include design complexity, low reliability and high cost of labor to swap the hoses to the hydrants.
Also known sprinkling machine, comprising mounted on the tractor frame dual console farm, the pressure and suction pipelines and floating valve, in which, to improve performance by increasing the speed of movement of the machine during operation, the floating valve is connected with the front part of the frame of the tractor by means of the bracket and the flexible rod and the suction pipe is fixed on the rear part of the frame of the tractor by means of a pendulum suspension (SU inventor's certificate No. 917802. M CL3A 01 G 25/09. Sprinkling machine / E. M. Morozov, N. P. Gordeev, Y. F. Goryunov, V. D. Murashev and N. D. Cuttings (USSR). - Application No. 2987729/30-15; Claimed 25.09.1980; Publ. 07.04.1982, bull. No. 13 //Opening. The invention. - 1982. - №13).
The disadvantages of this sprinkler include neudovletvoritel.
Known water irrigation device of the machine, including the suction pipe, the receiving funnel, water intake grid, a screen with the floating ring plate, in which, to improve reliability, the device is equipped with reflectors and photojournalism made in the form of longline located annular pipe tangentially placed against the outer wall of the nozzles, and the reflectors are fixed ahead of the nozzle and over the annular plates of the screen, the rays of which are aligned with the bottom cut reflectors; the rays of the screen is made curvilinear (SU inventor's certificate No. 1493181. A1. M CL4A 01 G 25/09. Intake device of irrigation machine /P. I. Kuznetsov and A. G. Bolotin (USSR). - Application No. 4168296/30-15; Claimed 08.10.1986; Publ. 15.07.1989, bull. No. 26 //Opening. The invention. - 1989. - №26).
The disadvantages described intake device of irrigation machines are drawn in mineral debris and sludge from the bottom of the channel despite the presence of policebrutality, because the stream of sucked water is directed from the bottom up.
It is also known intake device, comprising mounted on the frame sprinkler pump with suction and discharge nozzles and the filter element is driven, scrapers, capacity by preventing suction to the surface of the filter element of higher algae, the device is provided with a block of jet nozzles connected via a controlled valve to the pressure connection of the pump and arranged dispersed in the area and in the direction from the filter element with the possibility of changing the height and position angle in the vertical plane (SU inventor's certificate No. 1787380. A1. M CL5A 01 G 25/09. The intake device /A. S. Gorbachev, M. A. Gubin, B., Chichikov, P. D. Lysine and Y. A. Zubin (USSR). - Application No. 4919215/15; Claimed 24.01.1991; Publ. 15.01.1993, bull. No. 2 //Open. The invention. - 1993. - №2).
The disadvantages described are the design complexity and low efficiency of cleaning of the filter element.
It is also known water sprinkler device including a suction pipe with an acceptance filter, grid and collector nozzles Hydrotreating, hydraulically connected through a tube with the pressure side of the pump, equipped with a shut-off body with the actuator, in which, to reduce energy costs and increase reliability, the device is provided with a pressure sensor and an additional shut-off body with drive, with an additional stop valve is installed on the tube, and the pressure sensor suction pipe is Lamy Hydrotreating made removable (SU, copyright certificate №1360652. A1. M CL4A 01 G 25/09. The intake device sprinkler /in. A. Potapov, N. In.Rybalko (USSR).- Application No. 4042750/30-15; Claimed 24.03.1986; Publ. 23.12.1987, bull. No. 77 //Opening. The invention. - 1987. - №77).
The disadvantages described water sprinkler device of the machine, taken as naiblizhajshee analogue, include low degree of purification of the grid and the sampling of soil, silt and mineral Sora bottom of the channel.
The essence of the claimed invention.
The problem to which the invention is directed, - improving the efficiency of irrigation machines running water when moving from open channels or irrigation network.
The technical result - the reduction of energy consumption to drive the pump sprinkler and ensuring the uniform distribution of precipitation in the form of rain.
This technical result is achieved by the fact that in the known water sprinkler device including a suction pipe with an acceptance filter, grid and collector nozzles Hydrotreating, hydraulically connected through a tube with the pressure side of the pump, equipped with a shut-off body, according izobreteniya it has the strict mounted on brackets between the screen and the grid, installed with the possibility of dismantling in the guide housing of the receiving filter and made in the form of corrugated plates with alternating protrusions and depressions, and the grid is provided with a lock operating position to the rails.
Corrugated plate mesh in combination with nozzles Hydrotreating ensure the achievement of specified technical result.
The invention is illustrated by drawings.
In Fig.1 shows the intake device, the view from the side of the manifold with nozzles Hydrotreating.
In Fig.2 - same view in the plan.
In Fig.3 - section a-a in Fig.1, a vertical axisymmetric
cut the intake of the device.
In Fig.4 shows a water sprinkler device from weaning grid from slide rail kit intake filter.
In Fig.5 - section b-B in Fig.1, the coupling tube communication with the pressure cavity pump and manifold Hydrotreating.
In Fig.6 - section b-b In Fig.1, the horizontal cross section of a cone intake filter on Subarus mounted check valves.
In Fig.7 - section G-G in Fig.1, the horizontal slit nozzle manifold Hydrotreating placed over the screen of your device.
In Fig.8 - section D-D in Fig.2, Popper is on him.
Fig 9 - section E-E in Fig.4, the operating position of the locking device in the grid.
In Fig.10 is a view W of Fig.4, a bottom view of the lock operating position of the grid in the guide body.
Information confirming the possibility of implementing the claimed invention are as follows.
The intake device, mainly for sprinkling machines, working with the abstraction of water from open irrigation network and water supply to the sprinkler nozzles in motion, includes a suction pipe 1 with the receiving filter 2, a grid 3 and a reservoir 4 with nozzles 5 Hydrotreating. Nozzle 5 collector 4 are hydraulically connected by means of a tube 6 with the pressure side of the pump (not shown). Tube 6 provided with a shut-off body, such as a valve (not shown).
The intake device is provided with a screen 7 and the reflector 8 of the sediment. The screen 7 is placed on the brackets 9 under the grid 3. The bracket 9 attached to U-shaped channel. The brackets 9 are made of water pipes with a conditional pass-sectionor. Use pipe 15×2,8 according to GOST 3262-75. Screen 7 is made of sheet steel with a thickness of 1.5 to 2.0 mm Screen 7 with the bracket 9 is formed formula with irrigation water.
Manifold with 4 nozzles 5 Hydrotreating the surface of the grid 3 is mounted on the brackets 9 between the screen 7 and the grid 3. The collector 4 is attached to T-shaped and made of tubes 38×2,8 according to GOST 8734-75. The ends of the horizontal pipes of the collector 4 are closed by plugs 10 and 11. The plugs 10 and 11 are associated with the straps 12 and 13 on the bracket 9. Manifold with 4 nozzles 5 Hydrotreating mounted on brackets 9 with the possibility of dismantling. This is facilitated by fasteners 14. The vertical edge of the header pipe 4 provided with a nipple 15 which is connected with the end of the tube 6 by means of the clamp 16. The clamp 16 is repeatedly covers the perimeter of the tube 6 and is connected by means of the fastening elements 17 with the bracket 18.
Nozzle 5 on the surface of the collector 4 posted by increments of 60+0,1 mm Each nozzle 5 is made of pipe 14×1,6 GOST 10704-76 lent cones. The diameter of the output end of the nozzle holes 5-8+0,45mm
The length of the nozzles 55±1 mm Nozzle 5 collector 4 Hydrotreating is oriented along the depressions 13 of the corrugated plate grid 3. The grid handles 20 and 21. Grid 3 is installed in the guide rails 22 and 23 of the housing 24 of the receiving filter 2. The guides 22 and 23 installed installed under the housing 24 and is made of C-shaped profile 20×49 mm length 500 mm ± 1.0 mm or clicks what smarami 500×1000 mm2sheet steel 1-100×1000×2000×1,5 THE 23.2.2067-89 with alternating depressions 19 and the notches 25. The dimensions of the grid 3-495-1,0×495+5×40-1 mm Dihedral angle between the depressions 19 60°+1°. On the surface mesh 3 with holes with a diameter of 10+0,5mm the Living section of the holes in the grid 3 is 85-88% of the surface of the sheet preform (500×1000 mm). One pair of ends of the guides 22 and 23 are closed resistant wall 26 (see Fig.1 and 8). The guides 22 and 23 are associated welds with the bottom of the housing 24 and additional straps 27 (see Fig.3, 4 and 8). Strap 27 together with the guides 22 and 23 form an inlet opening in the bottom part of the housing 24 with dimensions of 460×460 mm Upper part of the housing 24 is closed by a plate 28 with the holes 29 and 30 for installation over them check valves 31 and the reflector 8 of the sediment in the form of sectors 32, 33, 34 and 35. Sectors 32-35 reflector 8 on the housing 24 form a barrier, preventing plant floating litter to the grid 3. Sector 35 has a slot 36 for placement of the tube 6.
The brackets 9 screen 7 and the bracket 16 of the collector 4 welded together with the side walls of the casing 24.
The receiving filter 2 intake device is mounted between the suction pipe 1 and the sectors 32-35 reflector 8 on cornago reason 198-1,55 and 480-1,55 mm sheet steel B-2 according to GOST 19903-74. In the cavity of the receiving filter 2 Subarus mounted check valves 31. Each valve 31 is formed with a rectangular blade of rubberized material and congresa of sheet steel. The damper blades 31 is placed over the rectangular holes 29 and 30 of the plate 28 and is connected by means of clamp bars 38 on the stud 39 of the plate 27 and fastening means.
The grid 3 is supplied with the locking device 40 operating position in the guides 22 and 23. The locking device 40 operating position of the grid 3 in the guides 22 and 23 of the housing 24 is made in the form of a U-shaped elastic element from high-carbon steel with a thickness of 0.5 to 0.8 mm with a pair of holes with a diameter of 7...8 mm on the side walls 41 and 42. In the holes of the locking device 40 is set to the rods 43 and 44 of stainless steel with a diameter of 5...6 mm Each rod 43 (44) has a curved hook 45 at one end. The rods 43 and 44 of the block 40 are omitted in the holes of the grid 3. U-shaped elastic element of the locking device 40 is placed between the cavities 19 of the corrugated plate grid 3. The side walls 41 and 42 of the U-shaped elastic element between the pairs of holes are made slits 46.
The intake device operates as follows.
Before you begin tapping device grid 3 blocker 40 Pref is jut as in the holes of the locking device, and in the holes of the mesh 3, mutually approaching hooks 45 at the ends of the rods 43 and 44. This leads to the fact that the height of the corrugation of the grid increases, and in the hollows of the corrugations 19 and the projections 25 are pressed to the upper and lower shelves of the guides 22 and 23. When the pump mesh 3 with the locking device 40 is pressed against the bottom of the housing 24, while maintaining its geometric parameters and ensuring the performance of the diversion device.
To run the intake device cavity of the pump, suction line and the cavity of the receiving filter 2 is filled with water. The valve on the tube 6 is closed. This disconnect pressure cavity pump sprinkler machine from the manifold 4. Creating a vacuum within the pump cavity, under atmospheric pressure, the water from the open channel begins to enter the cavity of the housing 24 through the grid 3. When the engine is running sprinkler impeller pump develops speed to the nominal values. In the suction chambers of the pump, lines, and the receiving filter 2 generates a fluid flow, which rise valves 31 on the plate 28, opening her holes 29 and 30 (see Fig.3). Thus, the flow of water from the open channel irrigation network through the holes in the grid 3 is supplied first to the body cavity 24, and ZAT is ntny the flow of water does not grasp the bottom of the channel Il and mineral litter by placing under the net 3 screen 7 on the brackets 9.
The lifting mechanism of the diversion device pivot the reflector 8 pumps of sectors 32-35 at the end of the receiving filter 2 excludes floating litter from the surface (mirror) of water in the channel in the zone of suction in the space between the screen 7 and the grid 3.
At the steady state motion of the pivot operator opens the valve on the tube 6. Part of the water from the pressure cavity pump sprinkler enters the collector 4 and nozzles 5 under pressure is directed into the cavity 19 of the corrugated plate 3. Plant residues, suspensions, COP threads jets from the nozzles 5 are flushed with the lower surface of the grid 3, providing them with equal and constant living section of the grid 3. Constant pressure (head) and is equal to the flow rate of the pump provides high quality overhead irrigation. The execution of the grid 3 in the form of the corrugation provides a large living section of the grid 3 intake structures and this is achieved by reducing energy consumption for the pump drive.
1. The intake device including a suction pipe with an acceptance filter, grid and collector nozzles Hydrotreating, hydraulically connected through a tube with the pressure side of the pump, provided with the filter set aside by the Russian and below the grid, manifold with nozzles Hydrotreating mounted on brackets between the screen grid mounted with the possibility of dismantling in the guide housing of the receiving filter and made in the form of corrugated plates with alternating protrusions and depressions, and the grid is provided with a lock operating position to the rails.
2. The device under item 1, characterized in that the lock operating position of the grid in the guide housing made in the form of a U-shaped elastic element with a pair of holes on the side panels and installed them with the ability to move the rods, with each rod has a curved hook at one end.
3. The device according to PP.1 and 2, characterized in that the rod locking device missing in the holes of the grid.
4. The device according to PP.1 and 2, characterized in that the U-shaped elastic element disposed between the troughs of the corrugated plate of the grid.
5. The device according to p. 2, characterized in that the side walls of the U-shaped elastic element between the pairs of holes are made slits.
6. The device under item 1, characterized in that in the cavity of the receiving filter are arranged mounted check valves, each of which is made in the form of the blades of the rubberized materialomistka oriented along the troughs of the corrugated plate of the grid.
8. The device under item 1, characterized in that the collector nozzles Hydrotreating mounted on the brackets of the screen with the possibility of dismantling.
9. The device under item 1, characterized in that the grid handles.
FIELD: irrigation equipment mounted on mobile sprinkler units for drop or fine-dispersion sprinkling systems.
SUBSTANCE: sprinkler unit has frame made in the form of three-dimensional construction comprising pipes mounted on vehicle equipped with pumping station and intake hose. Flexible water supply pipeline with sprinkler apparatuses is fixed on frame by means of cables. Water supply pipeline is made sectioned. Each section has segment and flanges connected with one another by means of carrier member made in the form of bent C-shaped profile or rolled part. Sections are connected with one another through adapter member made in the form of hollow spherical shell with disk arranged in meridian plane and with the help of fastening means. Adapter member is arranged in cavities at inlet end and at outlet end of adjacent segments of flexible water supply pipeline. Fastening means are made in the form of pins inserted into axially aligned openings of flanges and disks. Adapter member disk is connected through cable with frame of three-dimensional construction.
EFFECT: simplified construction, reduced metal usage, increased efficiency and improved distribution of artificial precipitation along flexible water supply pipeline.
3 cl, 5 dwg
FIELD: agricultural irrigation equipment used in mobile sprinkler units.
SUBSTANCE: boom-type sprinkler unit has frame made in the form of three-dimensional construction composed of pipes and mounted on vehicle equipped with pumping unit. Flexible water pipeline with sprinkling apparatuses is secured on frame by means of cables. Flexible water pipeline is made sectioned. Each section has flexible pipeline segment positioned on carrier member made in the form of pair of longitudinal supports having bent C-shaped profile and flat rings at their end portions. Wide strips of pair of bent C-shaped profile are arranged at an angle to horizontal plane and perpendicular to one another. Said profiles define, in conjunction with rings, trough of carrier member. Adjacent carrier members are connected with one another by means of connecting parts through spacer bushings. One, two or three spacer bushings are made in the form of brackets for connecting cable ends to join with frame. Ends of flexible pipeline segments are mutually joined via transition portion made in the form of bushing. Ends of transition member have conical entrance portions. Annular portion formed on transition member surface is joined with ends of adjacent segments and pairs of yokes on their surface. Cable ends joining brackets are equipped with eye ring receiving slots and mounting openings. Diameter of carrier member rings exceeds outer diameter of transition member by 1.5-1.9 times.
EFFECT: simplified construction and increased efficiency.
4 cl, 5 dwg
FIELD: agricultural engineering, in particular, sprinkler equipment for continuous sprinkling of plants on fields.
SUBSTANCE: sprinkler unit has drive part with two pivotally fixed girder booms. Girder has central panel, columns, struts and sprinkler heads arranged on water-feeding belt. Drive part is provided with supporting table and rotary plate. Supporting table is mounted on vertical wall of rear axle of drive part above centrifugal pump. Rotary plate is mounted on supporting table for rotation around shaft, which pivotally connects said plate with supporting table, said plate and table being additionally mutually connected by hydraulic rotational drive. Girder central panel is fixed on rotary plate by means of vertical shaft. Central panel is additionally coupled to rotary plate by means of hydraulic drive of turning mechanism. In operating and transport positions, weight of girder is distributed over surface of supporting table. Mechanisms for rotating of rotary plate and turning of girder central panel simplify movement of girder from operating position to transport position and vice versa.
EFFECT: simplified construction and enhanced reliability in operation.
FIELD: agricultural engineering, in particular, irrigation of farm crops by means of multitower front sprinkler machines.
SUBSTANCE: wheeled pipeline is made sectioned and is furnished with sprinkler heads, wheeled supports, drive arranged in mid portion of central section, and section coupling means. Pipeline sections have variable section reducing in direction of supplying of irrigation water. Each pipeline section coupling is made in the form of two concentric branch pipes positioned for rotation one with respect to another and for axial displacement. Outer branch pipe is connected with flanges of adjacent carrier members. Inner branch pipe is joined with ends of adjacent pipes of different sizes, said pipes being made from high-pressure polyethylene. Pipes are positioned in cavity of carrier member. Carrier member of each section is made in the form of pair of opposite bent C-shaped sections. Ends of C-shaped sections are joined to flanges. Mounting rings are positioned in mid portion of pairs and adapted for mounting of wheel support hub. Outer branch pipe of pipeline section coupling is made in the form of detachable pair of semi-circles, each being formed by packet of spacer bushings arranged in equally spaced relation between pair of arced belts. Inner branch pipe for connecting ends of pipes made from high-pressure polyethylene is made in the form of outer and inner threaded bushings, each provided with diametrically oriented slots for special wrench for joining with ends of pipes to be connected. Inner bushing has threaded part for screwing into end of pipe of smaller diameter. Ring is disposed on outer end perimeter of pipe of smaller diameter. Inner bushing has cylindrical part joined with inner cylindrical surface of pipe of larger diameter. Its conical part is joined with sawn-through parts at end of pipe of larger diameter. Inner surface of inner bushing is defined by two intersecting conical surfaces with single base of minimal diameter.
EFFECT: uniform distribution of precipitation in the form of rain drops over area under irrigation process owing to constant flow speed of irrigation water into pipeline cavities.
10 cl, 11 dwg
FIELD: agricultural engineering, in particular, sprinkling irrigation of farm crops.
SUBSTANCE: apparatus has supporting members made in the form of cables attached in cantilevered manner to frame top, and irrigation pipeline connected to vehicle through pumping unit. Irrigation pipeline is coupled to frame by means of carrier carcass. Irrigation pipeline and carrier carcass are made sectioned. Each carrier carcass section is defined by pair of C-shaped bent profiles with flat rings at their ends. Profiles are arranged at an angle to one another with their wide strips to define trough. Sections of flexible pipelines made from low-pressure polyethylene are laid on trough. Ends of pipelines are embraced with bands made in the form of steel bushings. Ends of pipelines are joined by means of adapter member. Input parts of connecting member are made conical. Each adapter member is formed as hollow screw with left-handed and right-handed conical threads on their outer surface. Mid portion of screw has disk for fixing irrigation pipeline sections in operating position in rings of carrier carcass by means of paired spacer bushings and attachment means. Disk of adapter member is equipped with group of openings used for assembling-dismantling works. Openings for connection to threaded ends of cables are made in peripheral portions of carrier carcass flanges.
EFFECT: uniform distribution of precipitation in the form of rain drops through width of mobile unit, reduced material usage, simplified construction, and enhanced reliability in operation.
4 cl, 4 dwg
FIELD: agricultural engineering, in particular, mechanized irrigation equipment used on wheeled rollable pipelines.
SUBSTANCE: sectioned sprinkler is provided with sprinkling nozzles, wheeled supports, drive disposed in mid portion of central section, and section connecting couplings. Each section has water supply pipeline made from low-pressure polyethylene pipes. Pipes are successively joined to one another by means of couplings. Water supply pipeline is arranged in cavity of carrier part defined by C-shaped bent profiles. Ends of profiles are mutually connected by means of flanges. Length of carrier part is 11,720 mm. Hub of each wheeled support embraces carrier part. Sprinkling nozzles are connected with pipeline through nipples arranged between strips of adjacent C-shaped bent profiles of carrier part.
EFFECT: prolonged service life, simplified construction and reduced production costs of sprinkler.
FIELD: agricultural engineering, in particular, mechanized sprinkling irrigation with the use of rollable wheeled pipelines.
SUBSTANCE: sprinkler is made sectioned and is furnished with sprinkler heads, wheel-type supports, drive located in mid portion of central section, and section couplings. Each section has water supply pipeline manufactured from low-pressure polyethylene pipes sequentially connected through couplings. Water supply pipeline is placed in bearing part cavity defined by C-shaped bent bars. Bar ends are mutually connected through flanges. Bearing part is 11,720 mm long. Hub of each wheel-type support embraces bearing part. Sprinkler heads are connected with water supply pipeline through nipples interposed between strips of adjacent C-shaped bent bars of bearing part. Each wing connected with central section has overtime clutch.
EFFECT: prolonged service life and simplified construction of irrigation pipeline.
FIELD: agricultural engineering.
SUBSTANCE: invention relates to machines for mechanization of drop sparkling of farm crop. Proposed truss includes central panel in form of regular pyramid with square base made of pipes with flanges for connecting bottom chords and four suspensions. Suspensions are orientated along ribs of pyramid and one post. Post is arranged in central panel on one of side faces along apothem. Left-hand and right-hand cantilevers are mated with central panel. Each cantilever consists of one end panel and thirteen intermediate panels. Each intermediate panel is made in form of two posts, one distance piece, front and rear water passing pipes of bottom chords, one upper chord, two inclined braces, two horizontal tension members and two short-range sprinkler heads. End panel is made in form of guy truss. End panel is mated with truss panel by means of distance piece and inclined braces whose mated ends are orientated downwards in cross vertical plane of truss and are located lower than distance piece. Ends of front and rear water passing pipes are connected with guy truss pipeline by V-shaped water passing member. Panels of guy truss are formed by posts and distance pieces, inclined braces and tension members vertically orientated in longitudinal vertical plane. Water passing pipeline of guy part of truss is furnished with drain cock. V-shaped water passing member consists of steel pipes of equal section equal to sections of front rear water passing pipes and pipe line of guy truss. One of pipes of V-shaped water passing member is sectional and provided with threaded sleeve. Sleeve is fitted on threaded bushings. Bushings are installed with displacement outwards from ends of pipes. Bushings are connected by closed girth welds with end sections of parts of pipes to be connected. Insert made of plastic, for instance, fluoroplastic, is mounted between end faces of sectional parts of pipes and in plane of threaded bushings. Inner section of insert is equal to sections of pipes of V-shaped water passing member. Proposed two-cantilever self-aligning truss for sprinkling machines provides uninterrupted delivery of sprinkling water to short range heads of intermediate panels and long-range heads on guy part of truss.
EFFECT: reduced materials usage, improved sprinkling.
FIELD: agricultural engineering.
SUBSTANCE: invention relates to machines for mechanization of drop irrigation of crops. Proposed truss has upper and lower chords, central panel in form of regular pyramid with square base and left-hand and right-hand cantilevers mated with pyramid. Central panel has square base made of tubes with flanges for connecting lower chords and four suspensions orientated along ribs. Panel is provided with one post located on one of side faces along apothem of pyramid. Each cantilever consists of thirteen intermediate panel and one end panel. Each end panel is made up of two posts, one brace, two front and rear water tubes of lower chords, one upper chord, two tilted struts and two horizontal tension members. Two heads are fitted on each intermediate panel and end panel. End is made in form of guy-rope truss. It is mated with truss panel by brace and tilted posts. Ends of tilted posts are relative mated from top and bottom by horizontally orientated brace. Mated ends of tilted posts are orientated downwards and arranged lower than brace. Ends of front and rear water tubes in guy-rope part are relative mated by V-shaped water supply member with tube of truss guy-rope part. Panels of guy-rope part of truss are formed by posts and braces, tilted struts and tension members orientated in longitudinally vertical plane. water supply pipeline of guy0rope part is furnished with drain valve. Proposed truss provides 15-20% reduction of materials usage.
EFFECT: improved quality of sprinkling, facilitated servicing.
7 cl, 1 tbl, 53 dwg
FIELD: agricultural engineering, in particular, irrigation equipment, more particular, continuous motion sprinkler machines for farms.
SUBSTANCE: girder has central panel with two cantilevers pivotally fixed thereon. Each of two cantilevers is made in the form of mutually perpendicular vertical and horizontal girders having belts, columns, angle braces and sprinkler heads on water supply girder. Pipelines on central panel and water supply girder are made in the form of curved circuit line in transverse-vertical plane of sprinkler unit. Circuit line equation is y=a/2(ex/a+e-x/a), where a is distance from surface of field to be irrigated to pipeline arranged in mid portion of central panel; e is Napierian base (Napierian number); x and y are abscissae and ordinates of unknown points of pipeline in Cartesian coordinates XOY, the beginning part of which is aligned with field surface and with vertical axis of symmetry of girdle.
EFFECT: enhanced reliability in operation and increased efficiency.