CN203114404U - Forklift engine cooling system utilizing static hydraulic pressure to drive fan - Google Patents
Forklift engine cooling system utilizing static hydraulic pressure to drive fan Download PDFInfo
- Publication number
- CN203114404U CN203114404U CN 201320119628 CN201320119628U CN203114404U CN 203114404 U CN203114404 U CN 203114404U CN 201320119628 CN201320119628 CN 201320119628 CN 201320119628 U CN201320119628 U CN 201320119628U CN 203114404 U CN203114404 U CN 203114404U
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- China
- Prior art keywords
- hydraulic
- oil
- engine
- radiator
- gear pump
- 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
Links
- 238000001816 cooling Methods 0.000 title claims abstract description 44
- 230000003068 static effect Effects 0.000 title abstract 3
- 239000003921 oil Substances 0.000 claims abstract description 38
- 239000010720 hydraulic oil Substances 0.000 claims abstract description 22
- 230000008676 import Effects 0.000 claims description 9
- 230000002706 hydrostatic effect Effects 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 claims description 4
- 238000010521 absorption reaction Methods 0.000 abstract 2
- 238000001914 filtration Methods 0.000 abstract 2
- 238000012423 maintenance Methods 0.000 abstract 1
- 238000007599 discharging Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000110 cooling liquid Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
Images
Landscapes
- Forklifts And Lifting Vehicles (AREA)
- Cooling, Air Intake And Gas Exhaust, And Fuel Tank Arrangements In Propulsion Units (AREA)
- Auxiliary Drives, Propulsion Controls, And Safety Devices (AREA)
Abstract
The utility model discloses a forklift engine cooling system utilizing static hydraulic pressure to drive a fan. The forklift engine cooling system comprises a cooling module, the cooling fan, a hydraulic oil tank and a gear pump. The cooling fan is arranged on the cooling module and separated from an engine; and the gear pump is arranged on the engine. A hydraulic oil radiator is additionally arranged in the cooling module, and the hydraulic oil tank and the forklift hydraulic system hydraulic oil tank are shared. A hydraulic motor is arranged on the cooling module, the cooling fan is driven by the hydraulic motor, an oil absorption and oil filtration device is arranged between an inlet of the gear pump and the hydraulic oil tank, a hydraulic oil temperature sensor is arranged between an outlet of the oil absorption and oil filtration device and the gear pump, and electro-hydraulic proportional control valves are arranged on the hydraulic motor in parallel. The forklift engine cooling system utilizing the static hydraulic pressure to drive the fan has the advantages that rotation speeds of the cooling fan of the engine can be adjusted automatically according to temperature change of the engine, and therefore stepless speed change can be achieved; the arranged position of the radiator is not relevant to the position of the engine, and the radiator can be arranged freely; a high-pressure automatic failure protection function is achieved; and the forklift engine cooling system is efficient, energy-saving, long in service life and free of maintenance.
Description
Technical field
The utility model belongs to fork truck cooling system technical field, is specifically related to a kind of fork truck cooling system of hydrostatic drive fan.
Background technique
At present; the cooling system of domestic most of fork trucks mainly is made up of oil radiator, water radiator, cooling fan etc.; cooling fan is driven with stable drive ratio by V-shape belt by engine crankshaft; speed of cooling fan can only be with the rotational speed regulation of motor; can't realize regulating speed of cooling fan automatically according to the temperature height of motor, gearbox, often cause engine overheat to cause intermittently shutting down.The direct drive fan power consumption of motor is too big, is satisfying under the situation of performance requirement, wants to reduce engine power and is difficult to, and causes reducing the discharging of motor, also just can't satisfy environmental regulation to the requirement of discharging.Oil radiator and water radiator are subjected to the restriction of engine location, and its space and location arrangements are difficult to change, if will increase hydraulic oil radiator, hardly may.Along with the requirement that state can outer environmental protection rules is more and more higher, each motor manufacturer is by reducing engine power, developed turbosupercharging, absolutely empty in cold motor, by computer control motor.Therefore, the cooling system of traditional this drive fan can't satisfy the requirement of engine technology development.
The model utility content
For overcoming the defective that can't regulate cooling fan rotation speed in the prior art automatically, the utility model provides a kind of fork truck cooling system that can regulate the hydrostatic drive cooling fan of rotation speed of the fan automatically.
Concrete technological scheme of the present utility model is as follows:
The forklift engine cooling system of hydrostatic drive fan comprises motor 2, cooling fan 10 and refrigerating module, and described refrigerating module comprises cold heat sink and gearbox transmission oil radiator in engine water temperature radiator, the motor; Described cooling fan 10 is corresponding with refrigerating module, it is characterized in that: also comprise gear pump 6, oil hydraulic motor 7, hydraulic oil radiator 4 and electrohydraulic proportional control valve 9, cooling fan 10 is driven by oil hydraulic motor 7, and the outlet of the import of oil hydraulic motor 7 and gear pump 6 is communicated with; The import of the outlet of oil hydraulic motor 7 and hydraulic oil radiator 4 is communicated with, be installed in parallel electrohydraulic proportional control valve 9 on the described oil hydraulic motor 7, the inlet opening 9.1 of electrohydraulic proportional control valve 9 is communicated with the import of oil hydraulic motor 7, and the flow-off 9.2 of electrohydraulic proportional control valve 9 is communicated with the outlet of oil hydraulic motor 7; The outlet of the outlet of hydraulic oil radiator 4 and gear pump 6 is communicated with the hydraulic oil container 3 of car load hydraulic system respectively.
The outlet of gear pump 6 is provided with oil suction filter cleaner 5 and temperature transducer 8.
The beneficial effects of the utility model are:
(1) speed of cooling fan of motor is regulated automatically with the height of engine temperature, realizes stepless change, guarantees that motor under any operating mode, has suitable air quantity and the circulating load of cooling liquid, moves under constant temperature;
(2) radiator position and engine location are irrelevant, can arbitrarily arrange;
(3) have high pressure automatic fault protection function, if power when breaking down, the electrical signal inefficacy can cause fan work at maximum speed, has obtained the highest cooling capacity of motor;
(4) energy-efficient, the life-span is long, and is non-maintaining.
Description of drawings
Fig. 1 is structural representation of the present utility model.
Sequence number is among the last figure: gearbox 1, motor 2, hydraulic oil container 3, hydraulic oil radiator 4, oil suction oil purifier 5, gear pump 6, oil hydraulic motor 7, hydraulic fluid temperature sensor 8, electrohydraulic proportional control valve 9, inlet opening 9.1, flow-off 9.2, control mouth 9.3, cooling fan 10.
Embodiment:
Below in conjunction with accompanying drawing the utility model is described further.
Embodiment:
As shown in Figure 1, the forklift engine cooling system of hydrostatic drive fan comprises motor 2, cooling fan 10 and refrigerating module, and described refrigerating module comprises cold heat sink and gearbox transmission oil radiator in engine water temperature radiator, the motor; Described cooling fan 10 is corresponding with refrigerating module; Also comprise gear pump 6, oil hydraulic motor 7, hydraulic oil radiator 4 and electrohydraulic proportional control valve 9, cooling fan 10 is driven by oil hydraulic motor 7, and the outlet of the import of oil hydraulic motor 7 and gear pump 6 is communicated with; The import of the outlet of oil hydraulic motor 7 and hydraulic oil radiator 4 is communicated with, be installed in parallel electrohydraulic proportional control valve 9 on the oil hydraulic motor 7, the inlet opening 9.1 of electrohydraulic proportional control valve 9 is communicated with the import of oil hydraulic motor 7, and the flow-off 9.2 of electrohydraulic proportional control valve 9 is communicated with the outlet of oil hydraulic motor 7; The outlet of the outlet of hydraulic oil radiator 4 and gear pump 6 is communicated with the hydraulic oil container 3 of car load hydraulic system respectively.The outlet of gear pump 6 is equipped with oil suction filter cleaner 5 and hydraulic fluid temperature sensor 8.
Working principle of the present utility model is as follows:
Outside of the present utility model is connected with controller, chill temperature sensor, gearbox transmission oil temperature sensor and controller have been formed a closed control system in hydraulic fluid temperature sensor 8, engine water temperature sensor, the motor, controller is by the signal sampling of each temperature transducer to each cooling unit temperature in the radiator, and sampled signal carried out calculation process, output control signals to electrohydraulic proportional control valve 9.Wherein, hydraulic oil temperature sensor 8 flows to controller with the temperature signal that detects, signal after controller will be handled inputs to the control mouth 9.3 of electrohydraulic proportional control valve, change the empty accounting of the pwm signal of electrohydraulic proportional control valve, adjust the spillway discharge of electric-hydraulic proportion control valve, spillway discharge is by flow-off 9.2 overflows of electrohydraulic proportional control valve, change flow and the working pressure of oil hydraulic motor 7, the rotating speed of regulator solution pressure motor 7, thereby change cooling fan 10 rotating speeds, realization is to the control of system, and then the stepless change of realization cooling fan 10.
Claims (2)
1. the forklift engine cooling system of hydrostatic drive fan comprises motor (2), cooling fan (10) and refrigerating module, and described refrigerating module comprises cold heat sink and gearbox transmission oil radiator in engine water temperature radiator, the motor; Described cooling fan (10) is corresponding with refrigerating module, it is characterized in that: also comprise gear pump (6), oil hydraulic motor (7), hydraulic oil radiator (4) and electrohydraulic proportional control valve (9), cooling fan (10) is driven by oil hydraulic motor (7), and the outlet of the import of oil hydraulic motor (7) and gear pump (6) is communicated with; The import of the outlet of oil hydraulic motor (7) and hydraulic oil radiator (4) is communicated with, be installed in parallel electrohydraulic proportional control valve (9) on the described oil hydraulic motor (7), the inlet opening (9.1) of electrohydraulic proportional control valve (9) is communicated with the import of oil hydraulic motor (7), and the flow-off (9.2) of electrohydraulic proportional control valve (9) is communicated with the outlet of oil hydraulic motor (7); The outlet of the outlet of hydraulic oil radiator (4) and gear pump (6) is communicated with the hydraulic oil container (3) of car load hydraulic system respectively.
2. the forklift engine cooling system of hydrostatic drive fan according to claim 1, it is characterized in that: the outlet of gear pump (6) is provided with oil suction filter cleaner (5) and hydraulic fluid temperature sensor (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320119628 CN203114404U (en) | 2013-03-18 | 2013-03-18 | Forklift engine cooling system utilizing static hydraulic pressure to drive fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320119628 CN203114404U (en) | 2013-03-18 | 2013-03-18 | Forklift engine cooling system utilizing static hydraulic pressure to drive fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203114404U true CN203114404U (en) | 2013-08-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320119628 Expired - Lifetime CN203114404U (en) | 2013-03-18 | 2013-03-18 | Forklift engine cooling system utilizing static hydraulic pressure to drive fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203114404U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523712A (en) * | 2013-10-14 | 2014-01-22 | 安徽合力股份有限公司 | Radiator of diesel fork truck |
| CN107097634A (en) * | 2017-05-03 | 2017-08-29 | 江苏柳工机械有限公司 | A kind of sliding loader independence cooling system |
| CN108661774A (en) * | 2018-06-21 | 2018-10-16 | 成都天地直方发动机有限公司 | A kind of high-power explosion-proof electronic controlled diesel vehicle radiator cooling device |
| CN109854354A (en) * | 2017-11-30 | 2019-06-07 | 中国人民解放军陆军军事交通学院 | Diesel altitude-variable cooling system with variable water flow and its control process |
| CN109854649A (en) * | 2019-01-25 | 2019-06-07 | 一汽解放汽车有限公司柳州分公司 | A kind of wet brake external circulation cooling system |
| CN112303064A (en) * | 2020-10-30 | 2021-02-02 | 中煤科工集团西安研究院有限公司 | A composite temperature control system and method for a diesel engine and a hydraulic system |
| CN114645868A (en) * | 2022-03-30 | 2022-06-21 | 东方电气集团东方电机有限公司 | Fan control method, computer device and storage medium |
| CN114932773A (en) * | 2021-12-24 | 2022-08-23 | 广州大华德盛热管理科技股份有限公司 | Amphibious rig and cooling system for same |
-
2013
- 2013-03-18 CN CN 201320119628 patent/CN203114404U/en not_active Expired - Lifetime
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103523712A (en) * | 2013-10-14 | 2014-01-22 | 安徽合力股份有限公司 | Radiator of diesel fork truck |
| CN103523712B (en) * | 2013-10-14 | 2016-07-06 | 安徽合力股份有限公司 | Radiator of diesel fork truck |
| CN107097634A (en) * | 2017-05-03 | 2017-08-29 | 江苏柳工机械有限公司 | A kind of sliding loader independence cooling system |
| CN109854354A (en) * | 2017-11-30 | 2019-06-07 | 中国人民解放军陆军军事交通学院 | Diesel altitude-variable cooling system with variable water flow and its control process |
| CN108661774A (en) * | 2018-06-21 | 2018-10-16 | 成都天地直方发动机有限公司 | A kind of high-power explosion-proof electronic controlled diesel vehicle radiator cooling device |
| CN109854649A (en) * | 2019-01-25 | 2019-06-07 | 一汽解放汽车有限公司柳州分公司 | A kind of wet brake external circulation cooling system |
| CN109854649B (en) * | 2019-01-25 | 2021-03-09 | 一汽解放汽车有限公司柳州分公司 | External circulation cooling system of wet brake |
| CN112303064A (en) * | 2020-10-30 | 2021-02-02 | 中煤科工集团西安研究院有限公司 | A composite temperature control system and method for a diesel engine and a hydraulic system |
| CN114932773A (en) * | 2021-12-24 | 2022-08-23 | 广州大华德盛热管理科技股份有限公司 | Amphibious rig and cooling system for same |
| CN114645868A (en) * | 2022-03-30 | 2022-06-21 | 东方电气集团东方电机有限公司 | Fan control method, computer device and storage medium |
| CN114645868B (en) * | 2022-03-30 | 2023-05-12 | 东方电气集团东方电机有限公司 | Fan control method, computer equipment and storage medium |
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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: 20130807 |
|
| CX01 | Expiry of patent term |