CN211039630U - Fork truck transmission cooling system - Google Patents
Fork truck transmission cooling system Download PDFInfo
- Publication number
- CN211039630U CN211039630U CN201921412143.8U CN201921412143U CN211039630U CN 211039630 U CN211039630 U CN 211039630U CN 201921412143 U CN201921412143 U CN 201921412143U CN 211039630 U CN211039630 U CN 211039630U
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- heat dissipation
- transmission
- oil
- drive axle
- radiator
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Abstract
The utility model discloses a forklift transmission device heat dissipation system, which comprises a wet braking drive axle, wherein an oil outlet of the wet braking drive axle is connected with a heat dissipation pipeline, and an oil return port of the wet braking drive axle is communicated with the heat dissipation pipeline through a circulation pipeline; the heat dissipation pipeline includes oil-out, derailleur, the radiator of the wet braking transaxle that communicates in proper order along the pipeline flow direction, the oil inlet of derailleur with the oil-out intercommunication of wet braking transaxle, the oil inlet of radiator with the oil-out intercommunication of derailleur, this application through with a set of radiator of derailleur function, with the interior high temperature moist oil of wet braking transaxle switch on to derailleur cooling system in, cool off the high temperature lubricating oil of derailleur and wet braking transaxle through the radiator in the derailleur cooling system, therefore need not to arrange transmission's cooling heat dissipation system alone, reduced the demand to the fork truck space, can also provide the heat dissipation for transmission simultaneously.
Description
Technical Field
The utility model relates to a, specifically a fork truck transmission cooling system.
Background
The transmission system of the forklift consists of a reduction gearbox assembly, a differential assembly and a drive axle. The driving gear of the reducer is directly connected with the walking motor or the engine, the reduction box part is positioned between the drive axle and the walking motor or the engine, the mechanism reduces the rotating speed of the output shaft and increases the torque transmitted by the output shaft, and then the torque is transmitted to the differential mechanism. The differential is mounted on the front half-shell through bearing seats at two ends, and the front end of the differential is connected with the axle housing. The drive axle is composed of axle housing, wheel hub and wheel.
At present, in a transmission device for a wet braking forklift, drive axle lubricating oil for wet braking needs to be cooled and radiated. However, due to the limitation of the area and the structural layout of the radiating water tank, some vehicle models do not have enough water tank area to provide heat radiation.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a fork truck transmission cooling system to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme:
a heat dissipation system of a forklift transmission device comprises a wet-type brake drive axle, wherein an oil outlet of the wet-type brake drive axle is connected with a heat dissipation pipeline, and an oil return port of the wet-type brake drive axle is communicated with the heat dissipation pipeline through a circulation pipeline;
the heat dissipation pipeline comprises an oil outlet of a wet brake drive axle, a speed changer and a radiator which are sequentially communicated along the pipeline flow direction, an oil inlet of the speed changer is communicated with the oil outlet of the wet brake drive axle, and an oil inlet of the radiator is communicated with the oil outlet of the speed changer; the circulating pipeline comprises a return main pipe communicated with an oil outlet of the radiator, the return main pipe is communicated with an oil inlet of the transmission through a first return branch pipe, and the return main pipe is communicated with an oil inlet of the wet brake drive axle through a second return branch pipe.
As a further aspect of the present invention: and a circulating pump is arranged between the wet braking drive axle and the transmission, and the circulating pump is positioned between an oil outlet of the wet braking drive axle and an oil inlet of the transmission.
As a further aspect of the present invention: the circulating pump is a gear pump.
As a further aspect of the present invention: and the circulating pump is in power connection with the power output port of the transmission.
As a further aspect of the present invention: the radiator is water-cooling heat dissipation.
As a further aspect of the present invention: and the second return branch pipe is fixedly connected with an electromagnetic valve for opening or closing the second return branch pipe.
As a further aspect of the present invention: the electromagnetic valve is connected with a control handle for controlling the electromagnetic valve, and the control handle is in control connection with the transmission.
Compared with the prior art, the beneficial effects of the utility model are that:
1. according to the cooling system, the radiator is combined with the transmission function, high-temperature warm lubricating oil in the wet brake drive axle is conducted into the transmission cooling system, and the high-temperature lubricating oil in the transmission and the wet brake drive axle is cooled through the radiator in the transmission cooling system, so that a cooling and heat dissipation system of the transmission device is not required to be arranged independently, the requirement on the space of the forklift is reduced, and heat dissipation can be provided for the transmission device;
2. according to the heat dissipation system, the circulating gear pump is mounted at the power output port of the transmission, the gear pump provides flowing power for lubricating oil in the heat dissipation system, the circulation rate of the lubricating oil in the heat dissipation system is increased, the heat dissipation capacity is further increased, the structure is simple, a redundant gear pump power device is not needed, and the cost is reduced;
3. this application is through setting up solenoid valve and brake valve lever, therefore can make derailleur cooling system and transmission cooling system simultaneous working, also can the work alone of derailleur cooling system, therefore can deal with different work condition, has improved the adaptability of this application equipment.
Drawings
Fig. 1 is a schematic structural diagram of the present application.
In the figure: 1-radiator, 2-speed changer, 3-circulating pump, 4-wet brake drive axle, 5-control handle and 6-electromagnetic valve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, in an embodiment of the present invention, a heat dissipation system for a forklift transmission device includes a wet brake drive axle 4, an oil outlet of the wet brake drive axle 4 is connected to a heat dissipation pipeline, and an oil return port of the wet brake drive axle 4 is communicated with the heat dissipation pipeline through a circulation pipeline;
the heat dissipation pipeline comprises an oil outlet of a wet braking drive axle 4, a circulating pump 3, a transmission 2 and a radiator 1 which are sequentially communicated along the flow direction of the pipeline, wherein the oil outlet of the wet braking drive axle is communicated with an oil inlet of the circulating pump 3, the oil outlet of the circulating pump 3 is communicated with an oil inlet of the transmission 2, the oil outlet of the transmission 2 is communicated with an oil inlet of the radiator 1, the radiator 1 is a water-cooling radiator, a water tank for heat exchange is arranged on the water-cooling radiator, the circulating pump 3 is a gear pump, and the circulating pump 3 is fixedly connected to a power interface of the transmission and further;
the circulation pipeline comprises a return main pipe communicated with an oil outlet of the radiator 1, the return main pipe is communicated with an oil inlet of the transmission 2 through a first return branch pipe, the return main pipe is communicated with an oil inlet of the wet brake drive axle 4 through a second return branch pipe, lubricating oil cooled by the radiator 1 can be returned into the transmission 2 and the wet brake drive axle 4, meanwhile, an electromagnetic valve 6 used for opening or closing the return pipe is arranged on the second return pipe, the electromagnetic valve 6 is connected with a control handle 5 used for controlling the electromagnetic valve 6, the electromagnetic valve 6 can be controlled to be switched on or off through the control handle 5, in addition, the control handle 5 is in control connection with the transmission 2, and the control handle 5 can be controlled through a control system on the transmission 2.
The utility model discloses when using, when the engine is in the start-up condition derailleur and does not have power take off, but the wet braking transaxle is out of work this moment in the derailleur operation, under this operating condition, the lubricating oil temperature in derailleur 2 risees, the lubricating oil temperature in the wet braking transaxle 4 is unchangeable, circulating pump 3 is out of work this moment, solenoid valve 6 closes second return line, cooling system at this moment only dispels the heat to derailleur 2, namely high temperature lubricating oil in derailleur 2 gets into and carries out the water-cooling heat dissipation in radiator 1, low temperature lubricating oil after the heat dissipation flows back to derailleur 2 through total back flow, first back flow branch pipe, and then accomplishes the cooling work to the derailleur; when the speed changer 2 has power output, the speed changer 2, the circulating pump 3 and the wet brake driving axle 4 work at the moment, and the speed changer 2 and the wet brake driving axle 4 work, so that the temperature of lubricating oil in the speed changer 2 and the wet brake driving axle 4 is increased, then the high-temperature lubricating oil in the wet brake drive axle 4 is pumped into the speed changer 2 under the action of the circulating pump 3, then enters the radiator 1 through the speed changer 2 to be cooled and radiated, the low-temperature lubricating oil radiated by the radiator 1 flows out of the radiator 1 and enters the return main pipe, at the moment, the electromagnetic valve 6 is controlled to be opened through the control handle 5 or the speed changer 2 controller to enable the second return branch pipe to be in a conduction state, and then the low-temperature lubricating oil in the return manifold flows back to the transmission 2 and the wet brake drive axle 4 through the first return branch pipe and the second return branch pipe, so that the cooling of the lubricating oil in the transmission 2 and the wet brake drive axle 4 is completed.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (7)
1. A forklift transmission heat dissipation system comprises a wet braking drive axle (4), and is characterized in that an oil outlet of the wet braking drive axle (4) is connected with a heat dissipation pipeline, and an oil return port of the wet braking drive axle (4) is communicated with the heat dissipation pipeline through a circulation pipeline;
the heat dissipation pipeline comprises an oil outlet of a wet brake drive axle (4), a speed changer (2) and a radiator (1) which are sequentially communicated along the pipeline flow direction, an oil inlet of the speed changer (2) is communicated with the oil outlet of the wet brake drive axle (4), and an oil inlet of the radiator (1) is communicated with the oil outlet of the speed changer (2); the circulating pipeline comprises a return main pipe communicated with an oil outlet of the radiator (1), the return main pipe is communicated with an oil inlet of the transmission (2) through a first return branch pipe, and the return main pipe is communicated with an oil inlet of the wet brake drive axle (4) through a second return branch pipe.
2. The forklift transmission heat dissipation system according to claim 1, wherein a circulation pump (3) is disposed between the wet brake transaxle (4) and the transmission (2), and the circulation pump (3) is located between an oil outlet of the wet brake transaxle (4) and an oil inlet of the transmission (2).
3. A forklift transmission heat dissipation system as defined in claim 2, wherein the circulation pump (3) is a gear pump.
4. A forklift transmission heat dissipation system as defined in claim 2, wherein the circulation pump (3) is power connected at the power take off of the transmission (2).
5. A forklift transmission heat dissipation system as defined in claim 1, wherein the heat sink (1) is water cooled.
6. The heat dissipation system for the transmission device of the forklift as recited in claim 1, wherein the second return branch pipe is fixedly connected with an electromagnetic valve (6) for opening or closing the second return branch pipe.
7. A forklift transmission heat dissipation system as claimed in claim 6, wherein the solenoid valve (6) is connected with a control handle (5) for controlling the solenoid valve (6), and the control handle (5) is in control connection with the transmission (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921412143.8U CN211039630U (en) | 2019-08-28 | 2019-08-28 | Fork truck transmission cooling system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921412143.8U CN211039630U (en) | 2019-08-28 | 2019-08-28 | Fork truck transmission cooling system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211039630U true CN211039630U (en) | 2020-07-17 |
Family
ID=71538227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921412143.8U Active CN211039630U (en) | 2019-08-28 | 2019-08-28 | Fork truck transmission cooling system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211039630U (en) |
-
2019
- 2019-08-28 CN CN201921412143.8U patent/CN211039630U/en active Active
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