Apparatus for feeding of water from temporary irrigation system into strip
FIELD: agricultural engineering, in particular, technique for cutting of temporary irrigation system, may be used for opening of terrace and closing of temporary irrigation system with ground.
SUBSTANCE: apparatus has frame hung laterally onto tractor girder, hydraulic cylinder for lifting of apparatus, and shield pivotally connected to stem of hydraulic cylinder. High-quality closing is provided by fabricating shield from two parts unequal in length, said parts being pivotally connected to frame of apparatus. Compression spring attached to shield and shield rotation limiting device provide returning of shield after executing of closing procedure to position perpendicular to frame of apparatus.
EFFECT: improved quality of covering irrigation system terrace, and reduced costs for strip irrigation process.
The technical field
The invention relates to agriculture, in particular to tools for cutting temporary irrigation network, and can be used to open the berm and the overlap of the ground of the temporary fill.
The level of technology
A device for supplying water into the band, consisting of the sprinkler installed at him across devices (Sandor) and culverts (firecrackers), feed water into strips (korshikov A.A. Device temporary irrigation network. - M.: Kolos, 1971. Ñ.38-39.
The disadvantages of this device are the high cost of capital investment, low level of mechanization of irrigation and the presence of hydraulic structures that impede the implementation of agricultural activities on the field.
Closest to the proposed technical essence is a device for irrigation of the bands with the help of a bulldozer, selected as a prototype, including a bulldozer with a lift cylinder shield (dozer shovel). To supply water from a temporary fill in band bulldozer moves at an angle of 30-35° temporary fill, cuts off the berm fill and cut the primer overlaps the fill, and the water from the sprinkler via cut "propane" goes to the band ((AV Mechanized irrigation furrow with application of bulldozer /Hydraulic engineering and land reclamation, No. 5, 1975. S-83).
Not what atcom this device is the bulldozer is moving strip, in which water flows, this breaks down stripes, ridges and furrows in the double pass of the tractor for cutting the berm and return the tractor to a new position.
Disclosure of inventions
The invention aims to remedy these disadvantages.
The technical result improved quality open berm fill, as well as reducing the cost of running irrigation lines.
This is achieved in that the device comprises a frame hinged side of the tractor and lowered using a hydraulic cylinder on the opposite side of the tractor toward the time of the fill. To the Central part of the shield device pivotally attached to the piston rod of the hydraulic cylinder. The shield is made of two unequal length parts.
Brief description of drawings
1 shows a device for supplying water from a temporary fill in the band, hung on universal tractor, front view; figure 2 is a top view before opening the berm fill; figure 3 is a top view of the final step of opening the berm fill.
The implementation of the invention
Device for supplying water from a temporary fill in a strip consists of a frame 1, a lift cylinder device 2, a shield 3, pivotally connected with the rod of the hydraulic cylinder 4. The frame of the device is hung on the side spar tractor and have the opportunity to climb with the help of the hydraulic cylinder 2, this allows the tractor to the device to be on the opposite side of the fill from the pour strips and cut fill cut off the ground without breaking the strip and vodohranilisha rollers. For qualitative overlap the shield is made of two unequal length parts, the hinge 5 is attached to the frame of the device. The shield is attached compression spring 6 and the rotation limiter shield 7 ensuring the return of the shield after completing the overlapping position perpendicular to the frame of the device.
The device operates as follows.
After cutting the temporary fill the tractor with side hinge device arrives as close as possible to the berm fill, pushes the piston rod of the hydraulic cylinder 4 to its full length, thus the spring 6 shield 3 is installed parallel to the tractor (to fill). The lift cylinder 2 shield 3 is lowered onto the field on the other side opposite berm fill.
When turning on the hydraulic cylinder 4, the movement of the shield begins with the lower part of the side shield (due to the action of forces of resistance to cutting of the soil), which moves soil from the berm to the side of the fill. When you come to the stop 7, the side stops and moves only other part of the shield. When this movement takes place progressively over the rod of the hydraulic cylinder and a circle with the center at the end of the stroke limiter lower the Asti shield. The ground, cut off from a large berm shoulder shield, served in the fill and simultaneously pressed against the part of the soil, which shifted the shield of his short part. Through this movement the soil cut from the berm, qualitatively overlaps the fill, and propane in the berm for the passage of water from the sprinkler in the band get more fill. Due to this, the speed of the water in the closure channel does not exceed the speed of water in the sprinkler and intensive erosion of berm fill does not occur.
The invention compared with the prototype has the following advantages:
the tractor during operation is located on the opposite side of the fill from the pour strip, this allows you not to break the band and vodohranilisha rollers;
- savings in investment costs due to the use of mobile devices hinged on universal tractor;
this process has a high productivity by 100% mechanization;
environmental factor is provided by the opening of the closure channel berm larger than the width of the fill, and therefore, the speed of the water in the closure channel does not exceed the speed of water in the sprinkler, and intensive erosion of berm fill does not occur. In addition, due to the rotation of the shield is provided by soil compaction, overlying fill.
The feeder is of the odes of temporary fill in lane consisting of a frame with a hitch on the tractor, lift cylinder and shield for blocking the nozzle, characterized in that the shield is made of two unequal length parts that are attached with hinges to the frame of the device, and the shield is provided with a compression spring and a rotation limiter shield, the latter being made with the possibility of a return of the shield after completing the overlapping position perpendicular to the frame of the device.
FIELD: mechanized irrigation of farm crops by sprinkling process, in particular, equipment used in sprinkling irrigation systems.
SUBSTANCE: pulsed sprinkler unit has valve with seat and piston. Cavity between seat and piston is communicating with nozzle cavity and cavity formed under valve is communicating with air-and-water tank and pressure pipeline. Locking device is equipped with auxiliary piston spring-loaded relative to valve piston and provided with large-sized and small-sized cylinders and divided by means of perforated partition. Auxiliary piston is positioned for axial displacement within casing cylinder and abuts with small-sized cylinder end against seat. Valve and piston are positioned within cavities of small-sized and large-sized cylinders of auxiliary piston, respectively. Distance between partition of small-sized cylinder and valve is greater than distance between right-hand ends of valve piston and auxiliary piston. Outer diameter of small-sized cylinder is smaller than inner diameter of large-sized cylinder of auxiliary piston.
EFFECT: enhanced reliability in operation, reduced consumption of power owing to providing of working capacity within wide range of flow rates and pressures and due to eliminating influence of frictional force of sealing means upon working capacity of locking device in its opening phase.
3 cl, 2 dwg
FIELD: agriculture, in particular, process and technique for crop irrigation.
SUBSTANCE: method involves providing water outlet selected on the basis of its flow rate and equipped with heads, said water outlet being spaced apart from center by distance multiple the serial number of unit of given water outlet on water feeding pipeline of irrigation machine; establishing similar water outlet with the same heads on parts of water feeding pipeline proximate to center at distance multiple the serial number of unit k; controlling time-pulse or width-pulse mode of operation; setting ratio of irrigation time tik of established water outlets with heads to irrigation time tik and no irrigation time tnk, said ratio being equal to ratio of their serial numbers k to serial number of selected water outlet with heads i according to dependence: tik(tik+tnk)=K/i. Valve or hydromechanical pulsator is mounted on each of equally spaced water outlets disposed close to central support on water feeding pipeline. Valve is controlled by generator. Hydromechanical pulsator has adjustable water feeding switch-on time or water feeding switch-off time during periodic operation thereof, said time being individually adjustable for each pulsator. Depending on serial number of pulsator corresponding to arrangement on water feeding pipeline and serial number of selected water outlet, pulsator cylinder piston stem is made hollow and is equipped at the side adjoining piston with piston stroke restricting device having radial openings therein. Inlet branch pipe positioned on cover is provided with outer thread and is connected to water outlet. Throttle regulator is made spherical and is equipped with scale and device indicating no water feeding time. Channel which connects cavity under piston and stem cavity is provided within cylinder. Valve with hollow stem is positioned on cylinder base within outlet branch pipe in axially aligned relation with respect to piston for axial displacement within branch pipe. Radial outlet apertures are provided on end of hollow stem. Restricting washer is rigidly fixed on cylinder base. Outlet branch pipe has scale. Retainer for fixing outlet branch pipe in predetermined position is formed as sleeve. Irrigation heads are positioned at outlets of each pulsator.
EFFECT: improved quality of irrigation process and simplified construction of machine.
3 cl, 3 dwg
SUBSTANCE: method involves locating water outlets with heads in equally spaced relation along radius with equal flow rate characterized by and equal to flow rate of water outlet outer from center; creating pulsed operation mode for water outlets by width-pulsed or frequency-pulsed controlling; setting and tuning ratio of periodic irrigation time tui for each of water outlets with heads to irrigation time tui and lack of irrigation Tni with ratio of ordinal number i of water outlet from center to total quantity n of water outlets in accordance with dependence: Each of water outlets uniformly positioned on water pipeline is equipped with valve connected to control device or pulse generator with adjustable switch-on and switch-off time during periodic operation thereof for regulation of time-pulsed and width-pulsed controlling, which are individually adjusted for each valve depending on its ordinal arrangement on water pipeline and total quantity of water outlets thereon. Heads for sprinkling, surface irrigation and circular irrigation are mounted at valve outlet ends.
EFFECT: improved quality of irrigation and simplified construction of irrigation machine.
3 cl, 2 dwg
FIELD: agricultural engineering, in particular, sprinkling and fertilizing technique in irrigated agriculture.
SUBSTANCE: machine, in conjunction with its anchor driving road track equipped with end reversal stops, is spaced from ground surface by altitude of up to 50 m through on-board supporting toroidal aerostats rigidly threaded by means of rim hubs on on-board water-and-pulp pipeline furnished at perforations from mid portion to ends with water-and-pulp pneumatic ejection-type sprinkling-fertilizing units. On-board, pipe connection, comb-shaped hydrogen and air-ballast collectors laid laterally of on-board water-and-pulp pipeline along the length thereof are adapted for on-board supporting toroidal aerostats furnished with long and short mooring anchoring guide ropes. Two parallel carrier lightning-guiding ropes of annular stays of supporting toroidal aerostat tubular current-conductive puller sleeve are pivotally hung in current-conductive manner from the bottom between both end on-board supporting toroidal aerostats on double-support steel back pin of each pendulum crank, puller sleeve being joined without tension with its out-board telecommunications with on-board tubular current-conductive communications. Rope-road rollers of mechanisms for synchronous front shuttle movement along rope road track are fixed on outer ends of both end tubular constructive parts of on-board water-and-pulp pipeline. Paired wells of airlifts are provided in mid portion of shoulders of each catch of portion to be ameliorated, airlifts being hydraulically, electrically and pneumatically sealed in parallel way from irrigation pump-and-compressor station. Both lower ends of puller sleeve are brought to said wells. Ends of tubular current-conductive telecommunications of puller sleeve, except for annular stays, are freely passed through throat of conductive gauge of hawsehole into well of airlift water-and-pulp pneumatic lift pipeline branched from puller sleeve train is connected to internal well hydrant of airlift. Airlift has chamber permanently filled with water and positioned in airlift base and is further provided with three sluice fertilizer chambers.
EFFECT: increased efficiency of machine by delivering finely dispersed irrigation spray of predetermined intensity or uniformly distributed granulated and liquid fertilizers.
FIELD: agricultural engineering, in particular, self-propelled multitower sprinkling machines adapted for intake of water from pressure pipelines.
SUBSTANCE: self-propelled reversing cart has frame with pair of carrier wheels and brakes, hydraulic drive cylinder equipped with piston and connected with distributing unit through distributing valve and regulating valve connected to two-way synchronization mechanism, forward and backward stroke tips mounted on pushers of front and rear wheels and cooperating with ground-engaging means, additional distributing valve located in feeding line of hydraulic cylinder lower cavity and adapted for providing alternative communication of said cavity with pipeline of sprinkling machine and atmosphere. Water is fed simultaneously into main and additional distributing valves from pressure pipeline by means of T-pipe. Piston is furnished with two collars having thrust washers arranged at both sides in opposite orientation with respect to one another and located for sliding on upper part of hydraulic cylinder stem, said sliding motion being restricted in lower position by rib and in upper position by tightening nut. Hydraulic cylinder stem has sealing member positioned in lower part of hydraulic cylinder casing. Stem 7 of distributing valve and stem 24 of additional distributing valve are joined with their lower parts through threaded connection by means of bushing. Ground-engaging means is made in the form of hollow square with oval-shaped working surfaces engageable with forward and backward stroke tips arranged at left-hand and right-hand sides of pushers in the vicinity of their leading end and connected therewith through pivot joints, which are fixed at forward and backward stroke by means of front and rear splints.
EFFECT: increased efficiency by reducing power consumed for conversion of machine motion from forward stroke to backward stroke.
FIELD: sprinkling equipment.
SUBSTANCE: each tower of sprinkler machine is fixed on satellite rigidly coupled to activator, which is actuated for motion by means of two hydraulic cylinders, with one of said hydraulic cylinders being rigidly connected to frame and other hydraulic cylinder being connected pivotally. During operation, hydraulic cylinders are offset with respect to one another.
EFFECT: increased efficiency by reducing disadvantageous effects upon soil.
FIELD: agricultural engineering, in particular, equipment for sprinkler irrigation of farm crops.
SUBSTANCE: sprinkling machine is adapted for mounting on tractor frame and is equipped with pumping plant, central column, pipelines and mechanisms for changing inclination angle of pipelines relative to horizontal plane. Pumping plant has water intake float valve and is hydraulically communicated with pipelines through flexible members. Pipelines are hung to central column through cable tension members. Pipelines are equipped with gun sprinkler units fixed on their free ends and short-range sprinkler units disposed lengthwise thereof. Mechanisms for changing pipeline inclination angles relative to horizontal plane are formed as power hydraulic cylinders mounted with their bases on central column, their stems being kinematically connected with ends of cable tension members. Gun sprinkler units and short-range sprinkler units are mounted on pipelines so as to keep unit casings in vertical position by means of counterweights. Counterweight body is positioned for rotation around horizontal axis on threaded pipe sleeve. One end of pipe sleeve is fixed by means of check nut in threaded part of nipple oriented in horizontal plane on pipeline. Cavity of pipe sleeve is closed at its other end with treaded stopper. Casing is positioned on outer surface of pipe sleeve between washers made from antifriction material. Washers are biased on said surface by means of flexible member, such as compression spring disposed between shaped washer and disk mounted in conjunction with check nut on free threaded end of pipe sleeve. Counterweight body cavity is adapted for filling with liquid ballast. Water used as liquid ballast is delivered through nipple radial openings. Casing cavity is hydraulically communicated with threaded receptacle for mounting threaded part, casing of gun sprinkler unit or casing of short-range sprinkler unit.
EFFECT: improved quality of sprinkling regardless of wind direction and speed in the process of sprinkling farm crops.
FIELD: agricultural engineering, in particular, irrigation equipment for farm crops.
SUBSTANCE: sprinkler unit has pumping plant, pipeline hung on tension members operating in upper and side directions. Pipeline consists of joined sections. Short distance jet and long distance jet sprinkler apparatuses are mounted on pipeline. Each of joined pipeline sections is additionally connected with upper and side tension members through closed cable run. One end of cable is inserted into conical opening of pipeline bracket. Other end of cable is mounted in blocking device for blocking said end of cable in fixed position. Blocking device for other end of cable is paired with U-shaped bracket of pipeline.
EFFECT: high quality of irrigation provided by means of sprinkler units located lengthwise of pipeline.
2 cl, 7 dwg
FIELD: agricultural irrigation systems.
SUBSTANCE: irrigation apparatus has immovable support and pipeline sections supported by self-propelled supports for synchronous movement and connected with each other. Pipeline sections are provided with sprinkler units mounted by means of T-shaped inserts between pipeline sections. Sprinkler units have increasing flow rates and irrigation radii with increasing discrete values from immovable support toward terminal sprinkler unit. Each of sprinkler units is joined to free end of T-shaped insert through set of diaphragms. Diaphragms are adapted for continuous altering of water flow effective section. Diaphragms have identical construction. Each of diaphragms is provided with opening offset to its peripheral edge.
EFFECT: enhanced reliability in operation, reduced irrigation erosion of soil owing to uniform distribution of precipitations and increased efficiency of movable irrigation apparatus.
2 cl, 4 dwg, 1 tbl
FIELD: agriculture, in particular, mechanization by furrow irrigation.
SUBSTANCE: multiple-tower irrigation pipeline comprises water supply pipe connected by means of connection and attachment units through sliding member to irrigation sweeps. Each unit for connection to water supply pipe and mechanism for attachment of irrigation sweep thereon during displacement are made separate. Guiding tie-rod for holding of irrigation sweep on sliding member is positioned on irrigation sweep immediately adjacent to respective unit for connection to water supply pipe. Sliding member is made in the form of detachable ring positioned on yoke with flanges. For employment of irrigation pipe on finely contoured plots, where employment of energetic drive cart is not useful, its water supply pipe with carrier wheels and irrigation sweeps is divided into individual sections and equipped with quickly detachable connection, and is further equipped in its mid portion with rigidly fixed shaft for displacement thereof on manual variation of positions.
EFFECT: simplified construction, enhanced reliability in operation and wider operational capabilities in irrigation of finely contoured plots.
2 cl, 4 dwg
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.