FIELD OF THE INVENTION
The present invention relates to Rotaside Wagon Tippler, 140 ton gear driven hydraulic clamping & hydraulic drive, G33 Revision-1; unload bulk material from the loaded railway wagon into the adjacent R.C.C. hopper. More particularly, the present invention relates to a tippler which gear driven hydraulic clamping, rotates and empties the 140 ton wagon by inverting them through an angle of 160º (Max) in an efficient manner with less time for unloading.
BACKGROUND OF THE INVENTION
India’s thermal power plant, mining, cement plant & steel production has grown the second fastest in the World in last five years. Raw Material continuous discharging is the most critical for efficient running of thermal power plant & steel plant. Wagons frequently carry cargo comprising comparatively small loose particles such as Coal, laminate, clinker, iron ore etc, which are the most important raw material for industries. Various mechanisms exist to unload such cargo. For example the underside of a wagon may have a trapdoor that is opened to release the cargo. Such a system requires either that a receiving structure be positioned directly beneath the trapdoor or that the cargo be released while the vehicle is in motion to avoid dragging the wheel assembly through large mounds of material. Providing a trapdoor and an actuator to open and close a trapdoor on the underside of a vehicle takes clear, unsupported space and necessitates larger structural members to compensate for the weakness created by the opening. Furthermore, the size of a trapdoor must necessarily be limited to avoid structural weakness. Therefore, bulky and irregular cargos will be likely to jam when unloading.
Other systems provide an opening on top of a vehicle and unload cargo by rotating the entire vehicle such that the cargo falls out the top. However, such systems require a great deal of time and energy to lift and rotate the vehicle through an angle of 140 degrees or more.

Still other systems provide doors at the rear of a vehicle and unload the vehicle by raising the front of the vehicle relative to the rear so that the cargo flows out the rear doors. Such systems have the disadvantage of requiring a great deal of space, energy, and power to lift the center of gravity of the vehicle to a sufficient height for the contents of the vehicle to flow out. Furthermore, the size of the opening at the rear of the vehicle is typically limited to the width of the vehicle. Where the cargo is bulky and irregularly shaped, such an opening may cause the cargo to bridge or otherwise jam during unloading.
It has been suggested, for example in U.S. Pat. No. 4,432,688, U.S. Pat. No 2,659,499, and U.S. Pat. No. 2,179,100 to Ramsay, dated Nov. 7, 1939, that railcars be unloaded by rolling them in a cradle which rolls on a cradle track.
United States Patent 3,463,333 discloses method of and apparatus for handling rail wagons wherein the portion of track on which the wagon is positioned is tiltably mounted in the apparatus and means have to be provided for retaining the wagon on said rail track.
In the case of tipplers the usual method is to provide a top-stop which engages the top of the wagon body and means are provided for causing the top-stop to apply to the top of the wagon body a sufficient force to keep the wagon wheels in contact with the rails section on which it is positioned. Such means are frequently a counterbalance weight which automatically brings the top-stop into the operative position as the tippler platform is turned.
Thus it would be advancement in the art to provide a system that allows for unloading of bulky cargos by providing a large, clear, unobstructed opening that would not require excessive lifting or tilting of the vehicle to unload the cargo. It would be a further advancement in the art to provide a large opening of substantially the dimension of the cargo hold, facilitating unloading while preserving the structural integrity of the vehicle.

OBJECTS OF THE INVENTION
It is therefore, an object of the present invention to propose for the Rotaside Wagon Tippler, 140 ton gear driven hydraulic clamping & hydraulic drive, G33 Revision-1 as per RDSO, unload bulk material from wagon with robust construction and designed for continuous duty.
Another object of the present invention is to propose for the Rotaside Wagon Tippler, 140 ton gear driven hydraulic clamping & hydraulic drive, G33 Revision-1 for tippling wagons which increases productivity with safely wagon & working force.
Another object of the present invention is to provide Rotaside Wagon Tippler, for unloading bulk material from the loaded wagon into the adjacent R.C.C. hopper, designed for minimum 25 tips per hour and is suitable for tippling broad gauge open type wagons manufactured by Indian Railways as per IS:10095.
SUMMARY OF THE INVENTION
Rotaside Wagon Tippler, 140 ton gear driven hydraulic clamping & hydraulic drive, G33 Revision-1, for discharging bulk material from wagon.
Therefore such as herein described there is provided a wagon tippler comprising of a cradle including two main girders braced together; a pair of end rings with trunnion mounted for rotation attached with toe; a side Beam made of box section girder fixed on the face of the end rings at its ends; a top clamp assembly including a top clamp arm hinged at End Ring and actuated by hydraulic cylinders; and a drive system including a power pack with electric motor and a hydraulic motor coupled with or without helical gear box.

The Rotaside Wagon Tippler with End Rings and reinforced shafts is supported on trunion bearings. It is capable of clamping and tippling wagons. The tippler empties the wagons by inverting them through an angle of 160º (Max). The tippler is of robust construction and designed for continuous duty. The wagon is clamped in the Cradle Table during tippling by hydraulic cylinders. The arrangement ensures that undue clamping pressure does not damage the sidewalls of wagon. Hydraulic cylinders used for clamping also hold wagon in inverted position.
The tippler is gear driven, power being available through Hydraulic Motors. The Hydraulic Motors for drive and Hydraulic Cylinders for clamping receive power from power packs located in the Drive Pit.
The tippler arrangement has convenient access for inspection and maintenance of all parts. Adequate platforms are provided for ease of maintenance. Ladders and safety hand railings are provided wherever required.
It is capable of tippling 140t (gross weight) wagon and can rotate up to 160º (max.). A locomotive weighing 150 Ton can pass over the tippler platform at a speed of 8 km/hr. (max.)
BRIEF DESCRIPTION OF THE ACCOMPANYING DRAWINGS
Fig.1 -shows a schematic diagram of general arrangement of Rotaside wagon
tippler G33, Revision-1; in accordance with the present invention;
Fig.2 –illustrates isometric view (3D) general arrangement for Rotaside wagon
tippler G33, Revision-1; in accordance with the present invention;
Fig.3 - illustrates isometric view (3D) of Side Beam (Side Bolster Beam) for
Rotaside wagon tippler in accordance with the present invention;

Fig.4 - illustrates isometric (3D) arrangement of Top clamp assembly & Side
Beam (Side Bolster Beam) for Rotaside wagon tippler in accordance with the
present invention;
Fig.5 – illustrates isometric (3D) End ring for Rotaside wagon tippler in
accordance with the present invention;
Fig.6 – illustrates isometric (3D) wheel gripper in accordance with the present
invention;
Fig.7 – illustrates isometric (3D) wheel chocker in accordance with the present
invention;
DETAILED DESCRIPTION
Rotaside Wagon Tippler G33, Revision-1; structure experiences varying loads during tippling as the material in the wagon starts falling in the hopper after certain angle ( beyond 15° tippling). It means that the structure has to meet varying load and various boundary conditions during the entire tippling cycle. This induces varying stress levels in the structure during operation. The wagon tippler is designed to address this varying load & stress levels. These are done through engineering calculations and are supported by Finite Element Analysis (FEA). However, these are based on calculations and assumptions.
The herein wagon tippler consists of two End Rings with reinforced shafts which are supported on trunion bearings and plummer blocks. It is capable of receiving, clamping and tippling all types of wagons used by Indian Railways. The tippler empties the wagons by rotating them through an angle of 160° (Max), though normally, evacuation is completed at 135° rotation. The tippler is of robust construction and designed for continuous duty. The wagon is clamped in the cradle table during tippling with the help of hydraulic cylinders.
The arrangement ensures that undue clamping pressure does not apply force beyond the allowable force of 1.5 tonnes per pad as per RDSO regulation and no damage is done to the sidewalls of the wagon. Hydraulic cylinders used for clamping also help to hold the wagon in inverted position. The tippler is gear

driven, torque being available through hydraulic motors, with or without combination of gear box.
The important parts of a wagon tippler are:
(a) Cradle.
(b) End rings.
(c) Side Beam (Side Bolster Beam).
(d) Top Clamp Assembly.
(e) Drive System.
As shown in Fig 1 and 2, the wagon tippler consists of the cradle (1). The cradle is a frame (a) walkway table, comprising two (b) fabricated main girders (2), braced together. Two rails (3) are to be fitted on the main girders on which the wagon is placed. When tippler is in the down position the cradle rests on two cup & cones (4) and two beams located on the top of the (c) weighing machine (5) to ensure correct weighing.
(7) Sectors gear (d) bolted fitted with end rings (6) mounted at the periphery will be driven by two pinions fixed on the line shaft driven through a suitable drive unit (8). Each of the end rings is trunnion (9) mounted for the purpose of rotation. These end rings are built in the form of (e) semi circle by a suitably designed plate structure. On each ring is (f) hinged an arm known as toe (10) as shown in Fig 5. The centre of the end rings is reinforced to carry the trunnion shafts; each of these shafts in turn is supported on pivot bearing resting on foundations. On each ring is attached an arm known as “toe” that carries the (g) slotted bearing and support the cradle and bearing during operation. Part of end ring is filled with (h) iron scrap and concrete mixture around circumference to provide the counter weight. This counter weight is filled such as reduces the amount of torque required during the tipping on the wagon.
The Side Beam (11) is made of box section girder which is (i) bolted with splice plate at its ends on the face of the end rings is shown in Fig 3. This box section girder is fixed at its end on the face of the end rings. It carries the side bolster

cushions against which the side of the wagon rests during tipping. Behind this beam assembly, the (j) spill plates are designed to facilitate the discharge of the contents of the wagons without spillage. (k) Moveable side (12) support is fitted with side beam & it is actuated by (l) six hydraulic cylinders (13). This is facilitating proper side clamping of different width of wagons.
The top clamp arm (14) as shown in Fig 4, is (m) hinged by hydraulic cylinders at End Ring and actuated by (n) four nos. hydraulic cylinder (15). The transfer beam (16) has been designed such that it is suitable to clamp minimum height of wagon and maximum height of wagon. (o) These are adjusting by six nos. individual actuated hydraulic cylinders. Wheel grippers (17) as shown in Fig 6, is made of soft material & operated by hydraulic cylinder (18), It is used for safety to prevent inadvertent motion of the wagons during tippling operation. These are located on the tippler table,
As shown in Fig 6, the wheel chockers (19) are operated (p) by hydraulic cylinder (20) & fitted at the in-haul & out-haul tracks, to prevent accidental rolling of the wagons on the tippler table.
The drive unit is either electromechanical, hydro-mechanical or hydraulic. The electromechanical drive consists of an electric motor coupled with a speed reduction gear box and brake mounted on the input shaft of the gear box. A hydraulic drive as herein used consists of a power pack with electric motor and a hydraulic motor coupled with or without a helical gear box. The hydraulic brake is inbuilt into the hydraulic motor, or an external hydraulic thruster brake is mounted on the input shaft of the gear box. The steps of operation are as follows:
1) LOCO / Rake puller bring the rake of loaded wagon up top one point.
2) To be placed the loaded wagon at the Wagon Tippler platform
3) De-coupled the wagon from the rest of the rack
4) Pull out rest of the rack from the wagon tippler platform
5) The Wagon Tippler is started after receipt of incoming signal that the wagon is placed at the platform properly.

6) Mechanical type clamping contacts with the wagon at about 40 degree of rotation of wagon and clamp the same the same
7) Wagon at clamped condition will get rotated up to approximately 160°degree (adjustable as per requirement) of the complete discharge
8) Wagon stay at this position for 5 sec and there after wagon tippler will start lowering
9) Wagon comes at 40 degree position when the clamping device will get released and will come to normal position
Although the foregoing description of the present invention has been shown and described with reference to particular embodiments and applications thereof, it has been presented for purposes of illustration and description and is not intended to be exhaustive or to limit the invention to the particular embodiments and applications disclosed. It will be apparent to those having ordinary skill in the art that a number of changes, modifications, variations, or alterations to the invention as described herein may be made, none of which depart from the spirit or scope of the present invention. The particular embodiments and applications were chosen and described to provide the best illustration of the principles of the invention and its practical application to thereby enable one of ordinary skill in the art to utilize the invention in various embodiments and with various modifications as are suited to the particular use contemplated. All such changes, modifications, variations, and alterations should therefore be seen as being within the scope of the present invention as determined by the appended claims when interpreted in accordance with the breadth to which they are fairly, legally, and equitably entitled.

WE CLAIM
1. Rotaside Wagon Tippler, gear driven hydraulic clamping & hydraulic drive,
consist of:-
(a) a cradle including two main girders braced together;
(b) a pair of end rings with trunnion mounted for rotation attached with toe;
(c) a side Beam made of box section girder fixed on the face of the end rings at its ends;

(d) a top clamp assembly including a top clamp arm hinged at End Ring and actuated by hydraulic cylinders; and
(e) a drive system including a power pack with electric motor and a hydraulic motor either direct coupled with shaft or through a helical gear box.

2. A wagon tippler as claimed in claim 1, wherein main girders are fitted with two rails on which the wagon is placed such that when tippler is in the down position the cradle rests on two cup & cones and two beams located on the top of the weighing machine to ensure correct weighing.
3. A wagon tippler as claimed in claim 1, wherein the pair of end rings further includes gear sectors mounted at the periphery and driven by two pinions fixed on the line shaft driven through a drive unit.
4. A wagon tippler as claimed in claim 1, wherein the end rings are built in the form of semi circle.
5. A wagon tippler as claimed in claim 1, wherein the centre of the end rings are reinforced to carry the trunnion shafts.
6. A wagon tippler as claimed in claim 5, wherein each of the trunnion shafts in turn are supported on pivot bearing resting on foundations.
7. A wagon tippler as claimed in claim 1, wherein the toe carries slotted bearing and support the cradle and bearing.
8. A wagon tippler as claimed in claim 1, wherein end ring is partially filled with iron concrete mixture to provide the counter weight which reduces the amount of torque required during the tipping on the wagon.

9. A wagon tippler as claimed in claim 1, wherein the side bolster beam cushions against which the side of the wagon rests during tipping.
10. A wagon tippler as claimed in claim 1, wherein the beam assembly and the spill plates facilitate the discharge of the contents of the wagons without spillage.
11. A wagon tippler as claimed in claim 1, wherein the side beam is fitted with
moveable side support actuated by six hydraulic cylinders facilitating proper side
clamping of different width of wagons.
12. A wagon tippler as claimed in claim 1, further includes a transfer beam suitable to clamp minimum height of wagon and maximum height of wagon.
13. A wagon tippler as claimed in claim 1, further includes wheel grippers made of soft material & operated by hydraulic cylinder to prevent inadvertent motion of the wagons during tippling operation.
14. A wagon tippler as claimed in claim 1, further includes wheel chockers operated by hydraulic cylinder (20) & fitted at the in-haul & out-haul tracks, to prevent accidental rolling of the wagons.
15. A wagon tippler as claimed in claim 1, wherein the drive system further, either includes hydraulic brake built into the hydraulic motor, or external hydraulic thruster brake mounted on the input shaft of the gear box.