CN202690199U - Independent cooling fan driving system for engine of hydraulic excavator - Google Patents
Independent cooling fan driving system for engine of hydraulic excavator Download PDFInfo
- Publication number
- CN202690199U CN202690199U CN 201220309944 CN201220309944U CN202690199U CN 202690199 U CN202690199 U CN 202690199U CN 201220309944 CN201220309944 CN 201220309944 CN 201220309944 U CN201220309944 U CN 201220309944U CN 202690199 U CN202690199 U CN 202690199U
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- CN
- China
- Prior art keywords
- cooling fan
- oil motor
- coupling
- driving system
- hydraulic excavator
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
Abstract
The utility model discloses an independent cooling fan driving system for an engine of a hydraulic excavator. The independent cooling fan driving system comprises an oil motor, an oil motor support, a coupler, a cooling fan and a coupler press plate, wherein the oil motor is connected with the coupler through a flat key. The oil motor support is provided with a positioning hole which is tightly matched with an installation end surface seam allowance of the oil motor. A fan central hole is tightly matched with a coupler end surface seam allowance. A key groove is arranged in a coupler central hole and is connected with a key groove of an output shaft of the oil motor through a flat key. The coupler press plate attaches to the output shaft of the oil motor and the fan end surface. The independent cooling fan driving system is simple in structure, the cooling fan is driven by the oil motor, power transmission of the independent cooling fan driving system for the engine of the hydraulic excavator can be achieved, rotating speed of the cooling fan is reduced, and further noise of the whole hydraulic excavator is reduced. Rotating speed of the cooling fan can be adjusted in real time according to practical requirements, and accordingly fuel oil consumption of the engine can be reduced. A small radial space between the cooling fan and a radiator wind scooper can be designed, and accordingly the independent cooling fan driving system is favorable for improving the radiating capability of a radiator.
Description
Technical field
The utility model relates to a kind of hydraulic excavator engine radiation fan drive system, hydraulic excavator engine independence radiation fan drive system.
Background technique
At present, hydraulic excavator engine radiation system cooling fan is engine free end output shaft and directly drives cooling fan, and the vibration of motor directly drives the vibration of cooling fan.And radiator is fixed on the vehicle frame, and the vibration of radiator vibration and cooling fan is asynchronous.Must reserve displacement amount that enough radial clearance compensate engine luggine between cooling fan and the radiator wind-guiding cover this moment, contacts with wind scooper with the flabellum of avoiding cooling fan in the working procedure.The rotating speed of motor has determined the high rotating speed of cooling fan simultaneously, can not be suitable for excavator rotating speed control requirement to cooling fan under the varying environment temperature, thereby has brought strong noise and the high fuel consumption of motor of car load.Obviously, this engine cooling system can not adapt to that Modern Hydraulic Excavator is energy-conservation, the requirement of noise reduction.
Summary of the invention
Problem for above-mentioned prior art existence, the utility model provides a kind of hydraulic excavator engine independence radiation fan drive system, can realize that cooling fan is driven by oil motor, can regulate in real time rotation speed of the fan according to actual needs, can reduce simultaneously the radial clearance between cooling fan and the radiator wind-guiding cover, the heat dissipation potential of heat radiation device.
To achieve these goals, the technical solution adopted in the utility model is: a kind of hydraulic excavator engine independence radiation fan drive system, comprise oil motor, the oil motor support, coupling, cooling fan and coupling pressing plate, have positioning hole on the oil motor support, have keyway and positioning spigot on the coupling center hole, after closely cooperating, oil motor installation end face seam and oil motor rack positioning hole be fixed on the oil motor support by clamping bolt and pad, after closely cooperating, coupling positioning spigot and cooling fan center positioning hole by clamping bolt cooling fan is fixed in coupling end-face, the coupling pressing plate is close to oil motor output shaft and cooling fan end face, coupling is connected key to connect with the oil motor output shaft, by clamping bolt and packing ring the coupling pressing plate is fixed on the coupling, the coupling pressing plate is connected with oil motor output shaft center hole with packing ring by clamping bolt simultaneously.
As preferably, oil motor is connected flat key to connect with coupling.
The utility model is simple in structure, and cooling fan is driven by oil motor, can realize the transmission of power of hydraulic excavator engine independence radiation fan drive system, reduces cooling fan rotation speed and then reduces the car load noise; Can regulate in real time cooling fan rotation speed according to actual needs, reduce engine fuel consumption; Can design radial clearance less between cooling fan and the radiator wind-guiding cover, be beneficial to the heat dissipation potential of heat radiation device.
Description of drawings
Fig. 1 is mounting structure schematic representation of the present utility model;
Fig. 2 is installation sectional view of the present utility model.
Among the figure: 1, oil motor, 2, motor bracket, 21, positioning hole, 3, coupling, 31, positioning spigot, 32, keyway, 4, cooling fan, 5, the coupling pressing plate, 6, flat key.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As depicted in figs. 1 and 2: the utility model comprises oil motor 1, oil motor support 2, coupling 3, cooling fan 4 and coupling pressing plate 5, have positioning hole 21 on the oil motor support 2, have keyway 32 and positioning spigot 31 on coupling 3 center holes, after closely cooperating, oil motor 1 installation end face seam and oil motor rack positioning hole 21 be fixed on the oil motor support 2 by clamping bolt and pad, coupling positioning spigot 31 is fixed in coupling 3 end faces by clamping bolt with cooling fan 4 after closely cooperating with cooling fan 4 center positioning holes, coupling pressing plate 5 is close to oil motor 1 output shaft and cooling fan 4 end faces, coupling 3 is connected output shaft and is adopted key to connect with oil motor, by clamping bolt and packing ring coupling pressing plate 5 is fixed on the coupling 3, by clamping bolt and packing ring coupling pressing plate 5 is connected the output shaft center hole with oil motor simultaneously and connects.
As preferably, oil motor 1 is connected with coupling and is adopted flat key 6 to connect.Also can select spline joint, consider that the spline cost is higher, select flat key 6 to connect here.
The utility model is simple in structure, and cooling fan 4 is driven by oil motor 1, can realize the transmission of power of hydraulic excavator engine independence radiation fan drive system, reduces cooling fan 4 rotating speeds and then reduces the car load noise; Can regulate in real time cooling fan 4 rotating speeds according to actual needs, reduce engine fuel consumption; Can design radial clearance less between cooling fan 4 and the radiator wind-guiding cover, be beneficial to the heat dissipation potential of heat radiation device.
Claims (2)
1. hydraulic excavator engine independence radiation fan drive system, it is characterized in that, comprise oil motor (1), oil motor support (2), coupling (3), cooling fan (4) and coupling pressing plate (5), have positioning hole (21) on the oil motor support (2), have keyway (32) and positioning spigot (31) on coupling (3) center hole, after closely cooperating, oil motor (1) installation end face seam and oil motor rack positioning hole (21) be fixed on the oil motor support (2) by clamping bolt and pad, coupling positioning spigot (31) is fixed in coupling (3) end face by clamping bolt with cooling fan (4) after closely cooperating with cooling fan (4) center positioning hole, coupling pressing plate (5) is close to oil motor (1) output shaft and cooling fan (4) end face, coupling (3) is connected 1 with oil motor) connection of output shaft employing key, by clamping bolt and packing ring coupling pressing plate (5) is fixed on the coupling (3), with packing ring coupling pressing plate (5) is connected 1 with oil motor by clamping bolt simultaneously) connection of output shaft center hole.
2. hydraulic excavator engine independence radiation fan drive system according to claim 1 is characterized in that described oil motor (1) is connected 3 with coupling) adopt flat key (6) to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220309944 CN202690199U (en) | 2012-06-28 | 2012-06-28 | Independent cooling fan driving system for engine of hydraulic excavator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220309944 CN202690199U (en) | 2012-06-28 | 2012-06-28 | Independent cooling fan driving system for engine of hydraulic excavator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690199U true CN202690199U (en) | 2013-01-23 |
Family
ID=47545828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220309944 Expired - Lifetime CN202690199U (en) | 2012-06-28 | 2012-06-28 | Independent cooling fan driving system for engine of hydraulic excavator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690199U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410772A (en) * | 2013-08-20 | 2013-11-27 | 江西科技师范大学 | Laminated coupler integrated with fan highly |
| CN111886386A (en) * | 2018-08-06 | 2020-11-03 | 日立建机株式会社 | Construction machine |
-
2012
- 2012-06-28 CN CN 201220309944 patent/CN202690199U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103410772A (en) * | 2013-08-20 | 2013-11-27 | 江西科技师范大学 | Laminated coupler integrated with fan highly |
| CN111886386A (en) * | 2018-08-06 | 2020-11-03 | 日立建机株式会社 | Construction machine |
| CN111886386B (en) * | 2018-08-06 | 2022-06-10 | 日立建机株式会社 | Construction machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |
|
| CX01 | Expiry of patent term |