TILTABLE ARRANGEMENT FOR OIL COOLER ASSEMBLY
Field of the invention:
The present invention is generally related to mechanical backhoes and excavators, and
relates specifically to new tilting arrangement/mechanism designed for Oil Cooler
assembly.
Background of the invention:
Backhoe loader machine involve hydraulic and transmission mechanisms, wherein it
requires considerable volume of hydraulic and transmission oil. During the operation
the hydraulic and transmission oil which gets heated up. The purpose of Oil Cooler
assembly in Backhoe Loader machine, which comprises of hydraulic and transmission
Oil Cooler assembly, is to cool (optimize temperature) the hydraulic and transmission
oil.
In conventional practice, the Oil Cooler assembly is directly mounted (front) on to
frame of Radiator assembly through bolts & nuts. The purpose of Radiator assembly
is to remove excess heat. Coolant flows throughout the engine to remove this excess
heat and transfer it to the Radiator where it is eventually cooled. Because of the space
constraint in Backhoe Loader machine, the Oil Cooler assembly is generally mounted
in front of Radiator assembly and thus causes hindrance in cleaning Radiator
assembly fins.
For cleaning the Radiator fins, the operator has to first unclamp the Oil Cooler inlet
hose and outlet hoses from Oil Cooler and then unscrew the hardware on Oil Cooler
assembly to remove the Oil Cooler assembly from Radiator frame. While removing
the Oil Cooler assembly there are chances of Radiator fins getting damaged during
dismantling and likely spillage of hydraulic and transmission oil. This process takes
lot of man hours in dismantling the Oil Cooler assembly from Radiator frame which leads to operator loosing his working hours as the machine is under maintenance. The present invention is designed in such a way so that it takes care of all above mentioned hindrances.
The present invention is directed to mechanical backhoes and excavators, and relates specifically to new tilting arrangement/ mechanism designed for Oil Cooler assembly. The above arrangement/mechanism is suitably designed, to clean the dirt that is accumulated on the fins of Radiator assembly which -gets accumulated during machine operation and is frequently required to be cleaned for proper functioning on Radiator and thus help in proper engine cooling.
Objective of the present invention:
The prime object of the present invention is to propose a new mechanism/arrangement for quick dismantling of Oil Cooler assembly for cleaning the Radiator fins required for general maintenance of a machine like backhoe loader, which comprises of the Oil Cooler assembly directly mounted in front of the Radiator assembly thereof. Another object of the present "invention is to propose a new tilting arrangement/mechanism designed for Oil Cooler assembly proposed herein, where the Oil Cooler assembly is suitably hinged and assembled with the said Radiator assembly.
Further another object of the present invention is to propose a method for operating (tilting and re-placing it in normal un-tilted position) the proposed new tilting arrangement/mechanism designed for Oil Cooler assembly, which comprises of various components that helps the Oil Cooler assembly in tilting it to the desired position wrt Radiator assembly for creating sufficient space between the Oil Cooler assembly and the Radiator assembly.
Statement of the present invention:
The present invention is intended to propose a new mechanism/arrangement for quick dismantling of Oil Cooler assembly for cleaning the Radiator fins required for general maintenance of a machine like backhoe loader, which comprises of the Oil Cooler assembly directly mounted in front of the Radiator assembly thereof; and further a new tilting arrangement/mechanism designed for Oil Cooler assembly proposed herein, where the Oil Cooler assembly is suitably hinged and assembled with the said Radiator assembly; and further more a method for operating (tilting and re-placing it in normal un-tilted position) the proposed new tilting arrangement/mechanism designed for Oil Cooler assembly, which comprises of various components that helps the Oil Cooler assembly in tilting it to the desired position wrt Radiator assembly for creating sufficient space between the Oil Cooler assembly and the Radiator assembly.
Summary of the invention:
It is the primary objective of the present invention to provide an arrangement/ mechanism that can be adopted without losing too much time for dismantling of Oil Cooler assembly for cleaning the Radiator fins required for general maintenance of machine.
Our design is unique in itself as it comprises of various components that help the Oil Cooler assembly in tilting to the desired position wrt Radiator assembly and the operator gets sufficient space without removing the Oil Cooler assembly to clean the fins of Radiator in a least possible time.
The present invention relates to Tilting arrangement/mechanism of Oil Cooler assembly which is generally placed in front of Radiator assembly mounted through Bolts and Nuts 14 on Radiator frame of Backhoe Loader machine, this machine generally works min. 10 hrs. a day in dusty environment so machine maintenance like
greasing all pivot joints, removing dust and dirt from air cleaner, pre-cleaner, cleaning
Oil Cooler assembly & Radiator assembly is required for proper functioning of
machine.
As Oil Cooler assembly is placed in front of the machine so it can be cleaned easily
by operator but the problem comes when Radiator assembly is to be cleaned as Oil
Cooler assembly is placed in front of Radiator assembly and is bolted on to Radiator
assembly frame, so one has to completely remove the Oil Cooler assembly as there is
hardly any gap to clean the Radiator assembly fins, this activity requires lot of man
hours and can only be done with the help of skilled person in the service center. To
over come this difficulty this unique mechanism has been designed in which the Oil
Cooler assembly can be tilted with the help of pivot joints provided on to Radiator
assembly and Oil Cooler assembly and a holding mechanism is designed to arrest the
Oil Cooler assembly when it is tilted to the required positioned without dismantling
the Oil Cooler assembly, without draining hydraulic and transmission oil and
removing the Oil Cooler assembly hoses.
With this mechanism the Oil Cooler assembly is easily tilted at an angle of
approximately 18 degrees thus creating a sufficient gap of approximately 210 mm for
cleaning purpose without dismantling hoses, Oil Cooler assembly and draining
hydraulic and transmission oil.
Detailed description of the present invention:
Brief description of the drawings:
The above and other objects and advantages of the present invention will become
apparent from the following description when read in conjunction with the
accompanying drawings, wherein:
FIG. 1 is Front view of Radiator assembly & Oil Cooler assembly
FIG. 2 is Tilted view of Oil Cooler assembly
FIG. 3 is Tilting arrangement/mechanism of Oil Cooler assembly
FIG. 4 is Holding arrangement/mechanism of Oil Cooler assembly
FIG. 5 is Schematic Hose routing of Transmission Oil Cooler assembjy
Detailed description of preferred embodiment:
Referring FIG. 1, it illustrates a preferred embodiment of the present invention
incorporated into Backhoe Loader vehicle. As illustrated in FIG. 1, Radiator assembly
01 is mounted on to the vehicle chassis with the help of supporting brackets through
hardwares.
Referring FIG. 2, it illustrates the tilted position of Oil Cooler assembly 02 wrt
Radiator assembly 01.
Referring FIG. 3, it illustrates the tilting arrangement/mechanism of Oil Cooler
assembly 02. This comprises of fixed Bracket 05 which is welded on to Radiator
assembly bottom. The Hinge Bracket 11 is mounted on to the Oil Cooler assembly
through Hinge mounting bolts 08 and Hinge mounting nut 09. The entire Oil Cooler
assembly is hinged through Pivot Bolt 06, adding Hollow Spacer 07 between Fixed
Bracket 05 and Bottom Hinge Bracket 11 and fastened through Hinge nuts 09.
Referring FIG. 4, it illustrates the Holding arrangement/mechanism of Oil Cooler
assembly once it is tilted to desired position wrt Radiator assembly 01. This comprises
of Fixed Bracket 14 bolted on to Radiator assembly 01 and Top Hinge Bracket 12
bolted on to Oil Cooler assembly 02. The Steel Chain 13 of approximately 115 mm
length is suspended through a Top Hinge Bracket 12 on Oil Cooler assembly 02 will
allow it to tilt to the required position of approximately 18 degrees and thus creating a
sufficient space of approximately 210 mm to clean the fins of the Radiator assembly
01.
Referring FIG. 5, it illustrates the schematic hose routing of Oil Cooler assembly
having Inlet hose 15 entering into Oil Cooler assembly 02 from Transmission outlet
hose 16 coming from Oil Cooler outlet and going to Transmission inlet. Transmission
is generally filled with Transmission oil for lubrication which gets heated during
machine operation. To cool the oil, Oil Cooler is required which optimizes the oil
temperature for efficient working of transmission.
DETAILED DESCRIPION OF OPERATING MECHANISM
Normal position:
In the normal position the Oil Cooler assembly 02 is rested on Radiator assembly (Oil
Cooler face rests on Radiator frame), fastened through nuts 14 (FIG. 3) & bolts
present on Radiator assembly 01 as shown in FIG. 1.
Tilted position:
To tilt the Oil Cooler assembly unscrew the Nuts 14 and let the Oil Cooler assembly
to rotate freely towards front side (away from Radiator assembly) on picot joints
provided on the bottom of Radiator assembly 01 as shown in FIG. 3.
Tilt the Oil Cooler assembly till the entire weight of the Oil Cooler assembly is taken
by the Steel Chain 13 of approximately 115 mm length (fully stretched). In this
position the Oil Cooler assembly is tilted at approximately 18 degrees wrt Radiator
assembly vertical position creating a gap of approximately 210 mm and thus allowing
operator to clean the Radiator assembly fins manually (without unclamping the
Hydraulic hoses) by air pressure and thus help in maintaining the engine temperature
within control and problem of over heating is avoided in the engine because of choked
Radiator assembly fins during machine operation.

We claim:
1. Tiltable arrangement for oil cooler assembly with respect to the radiator assembly of a backhoe loader and similar machines utilizing the hydraulic and transmission mechanism, wherein the said Tiltable arrangement primarily comprises of oil cooler assembly 02, the radiator assembly 01, the steel chain 13, hardwares involved in installation therein at supporting bracket(s) on the chassis.
2. Tiltable arrangement for oil cooler assembly, as claimed in claim 1, wherein the said oil cooler assembly mainly comprises of transmission oil cooler 03 and hydraulic oil cooler 04.
3. Tiltable arrangement for oil cooler assembly, as claimed in claim 1, wherein Radiator assembly 01 is mounted on to the vehicle chassis with the help of supporting brackets through hardwares; and wherein the oil cooer assembly 02 is mounted with the said radiator assembly 01 with the help of Fixed Bracket 05 and Bottom Hinge Bracket 11 and supporting hardware therein.
4. Tiltable arrangement for oil cooler assembly, as claimed in claim 1, wherein the fixed Bracket 05 is welded on to the bottom part of Radiator assembly 01 and the Hinge Bracket 11 is mounted on to the Oil Cooler assembly 02 through Hinge mounting bolts 08 and Hinge mounting nut 09; and wherein the entire Oil Cooler assembly 02 is hinged through Pivot Bolt 06, adding Hollow Spacer 07 between Fixed Bracket 05 and Bottom Hinge Bracket 11 and is fastened through Hinge nuts 09.
5. Tiltable arrangement for oil cooler assembly, as claimed in claim 1, wherein the tilting activity of said oil cooler assembly with respect to the
radiator assembly is characterized by unscrewing of the Nuts 14 and allowing the Oil Cooler assembly 02 to rotate freely towards front side (away from Radiator assembly 01) on picot joints provided on the bottom of Radiator assembly 01.
6. Tillable arrangement for oil cooler assembly, as claimed in claim 1,
wherein the tilting of Oil Cooler assembly is characterized by free
fall/rotation of oil cooler assembly 02 towards the front side (away from
Radiator assembly 01) and the entire weight of the Oil Cooler assembly is
taken by the Steel Chain 13 of approximately 115 mm length (fully
stretched) and thus in this position the Oil Cooler assembly 02 is tilted at
approximately 18 degrees wrt Radiator assembly 01 in its vertical position,
creating a gap of approximately 210 mm and allowing the operator to
clean the Radiator assembly fins manually (without unclamping the
Hydraulic hoses) and/or by air pressure.
7. Tiltable arrangement for oil cooler assembly with respect to the radiator
assembly of a backhoe loader, as claimed in claim 1 and substantially as
herein described and illustrated in the figures of the accompanying