CN-122008841-A - Double-circulation cooling and radiating system for internal combustion forklift

CN122008841ACN 122008841 ACN122008841 ACN 122008841ACN-122008841-A

Abstract

The application relates to a forklift heat dissipation system, in particular to a double-circulation cooling heat dissipation system for an internal combustion forklift. The application provides a double-circulation cooling heat dissipation system for an internal combustion forklift, which comprises a radiator, a circulating pump, a thermostat, a cooling fan, a temperature sensor, a cooling mechanism and a cooling mechanism, wherein the radiator is used for radiating and cooling liquid, the circulating pump is used for conveying the cooling liquid in the radiator into an engine cooling channel, the thermostat is used for controlling whether the cooling liquid enters the radiator to radiate and cool, the cooling fan is used for blowing and cooling the radiator to cool, the temperature sensor is arranged at the water outlet end of the radiator and used for detecting the temperature of the cooling liquid out of the radiator, the cooling mechanism is used for cooling the cooling liquid in the radiator through a refrigerant in an automobile air conditioner, and when the temperature detected by the temperature sensor is higher than a preset value, the cooling mechanism is used for cooling the cooling liquid in the radiator, so that the cooling liquid in the radiator can be cooled better, and the engine can be cooled better.

Inventors

WU PENG
WU JIAWEI
WU YUNYUN
JIN XIBIN
CHEN RUI
ZHOU FENG
LI WEIBIN
ZHONG LUMIN

Assignees

浙江尤恩叉车股份有限公司

Dates

Publication Date: 20260512
Application Date: 20260310

Claims (10)

1. The utility model provides a two circulation cooling system for internal-combustion forklift which characterized in that includes The radiator (1), the radiator (1) is used for carrying on the heat dissipation cooling to the coolant; The circulating pump (2), the circulating pump (2) is used for conveying the cooling liquid in the radiator (1) to the engine cooling channel; the thermostat (3) is used for controlling whether cooling liquid enters the radiator (1) for radiating and cooling; A cooling fan (4) for performing air-blowing cooling and heat dissipation on the radiator (1); the temperature sensor (5) is arranged at the water outlet end of the radiator (1) and is used for detecting the temperature of the cooling liquid coming out of the radiator (1); a cooling mechanism (5), wherein the cooling mechanism (5) cools the cooling liquid in the radiator (1) through the refrigerant in the vehicle air conditioner; When the temperature detected by the temperature sensor (5) is higher than a preset value, the cooling liquid in the radiator (1) is cooled by the cooling mechanism (5).
2. The dual cycle cooling and heat dissipating system for an internal combustion forklift according to claim 1, wherein the cooling mechanism (5) comprises a first circulation pipe (6) connected to a pipeline between a compressor and an engine in an air conditioning system, a second circulation pipe (7) connected to an outlet end of a condenser in the air conditioning system, a cooling pipe (8) connected between one end of the first circulation pipe (6) and one end of the second circulation pipe (7), the cooling pipe (8) being located in the radiator (1), the first circulation pipe (6) and the air conditioning pipeline being controlled by a solenoid valve connection, and the second circulation pipe (7) and the air conditioning pipeline being controlled by a solenoid valve connection.
3. The double-circulation cooling and heat dissipation system for an internal combustion forklift according to claim 2, wherein the radiator (1) comprises a radiator core (9), an intake chamber (10) arranged at the upper end of the radiator core (9), a water inlet pipe (11) arranged on the intake chamber (10), a water outlet chamber (12) arranged at the lower end of the radiator core (9), and a water outlet pipe (13) arranged on the water outlet chamber (12), and the cooling pipe (8) sequentially passes through the water outlet chamber (12) and the intake chamber (10) according to the flow direction of refrigerant.
4. A dual-circulation cooling and heat dissipation system for an internal combustion forklift according to claim 3, characterized in that a plurality of mounting holes (14) are formed in the outer wall of the water inlet chamber (10), a heat dissipation rod (15) is inserted into the inner wall of the mounting holes (14), a sealing piece for sealing the heat dissipation rod (15) and the inner wall of the mounting holes (14) is arranged on the inner wall of the water inlet chamber (10), and a locking piece (16) for locking the heat dissipation rod (15) on the inner wall of the mounting holes (14) is arranged on the outer wall of the water inlet chamber (10).
5. The double-circulation cooling and heat dissipation system for the internal combustion forklift according to claim 4, wherein the locking piece (16) comprises a locking pipe (17) fixedly connected to the outer wall of the water inlet chamber (10), a locking pipe (18) rotatably connected to the outer wall of the locking pipe (17), an annular groove (19) formed in the inner wall of the locking pipe (18), a locking ring (20) slidingly connected to the annular groove (19), a first end face tooth (21) arranged at the upper end of the locking ring (20), a second end face tooth (22) fixedly connected to the upper surface of the inner wall of the annular groove (19), and a locking spring (23) sleeved on the outer wall of the locking pipe (17), the inner wall of the locking ring (20) is in threaded connection with the outer wall of the heat dissipation rod (15), and the locking pipe (18) can axially slide along the locking pipe (17), and two ends of the locking spring (23) are respectively abutted to the outer wall of the water inlet chamber (10) and the lower end face of the locking pipe (18).
6. The dual cycle cooling and heat dissipating system for an internal combustion forklift as set forth in claim 5, wherein a gasket (24) is fixedly attached to the lower end surface of said locking ring (20).
7. The double-circulation cooling and heat dissipation system for an internal combustion forklift according to claim 4, wherein the sealing member is a first sealing ring (25), the first sealing ring (25) is fixedly connected to the inner wall of the intake chamber (10), the first sealing ring (25) is arranged in a horn shape, and the diameter of one end of the first sealing ring (25) close to the mounting hole (14) is larger than the diameter of one end of the first sealing ring (25) far away from the mounting hole (14).
8. The double-circulation cooling and heat dissipation system for an internal combustion forklift according to claim 7, wherein a second sealing ring (26) is arranged on the inner wall of the mounting hole (14), the second sealing ring (26) comprises a first section (27), a second section (28) and a third section (29) which are sequentially arranged from top to bottom, the first section (27) and the third section (29) are arranged in a horn shape and symmetrically, and the diameter of the first section (27) far away from the second section (28) is smaller than that of the first section (27) close to the second section (28).
9. The double-circulation cooling and heat dissipation system for the internal combustion forklift according to claim 1, wherein the cooling fan (4) comprises a driving shaft (30), a mounting seat (31) is fixedly connected to the front end of the driving shaft (30), the mounting seat (31) is in a cylindrical shape, a plurality of fan blades (32) are uniformly arranged on the outer wall of the mounting seat (31) along the circumferential interval of the outer wall of the mounting seat (31), and a control mechanism (33) for controlling the angle of the fan blades (32) through the speed of the vehicle is arranged inside the mounting seat (31).
10. The dual cycle cooling and heat dissipating system for an internal combustion forklift as set forth in claim 9, wherein the control mechanism (33) comprises a rotating rod (34) rotatably connected to the mounting base (31), a first bevel gear (35) fixedly connected to an outer wall of one end of the rotating rod (34), a servo motor (36) fixedly connected to an inner wall of the mounting base, and a second bevel gear (37) fixedly connected to an output shaft of the servo motor (36), and the first bevel gear (35) is meshed with the second bevel gear (37).

Description

Double-circulation cooling and radiating system for internal combustion forklift Technical Field The application relates to a heat dissipation system of an internal combustion forklift, in particular to a double-circulation cooling heat dissipation system for an internal combustion forklift. Background The cooling system of the automobile engine is a key device for adjusting the temperature of the engine in the automobile power system, and belongs to the type of forced circulation water cooling system. The cooling liquid is driven to circularly flow mainly through the pressurization of the water pump, so that the engine is ensured to work in a proper temperature range of 80-95 ℃. The system is composed of core components such as a water pump, a radiator, a thermostat, a cooling fan and the like. The cooling cycle is divided into a main cycle and a heating cycle, wherein the main cycle comprises a cold cycle (cooling liquid is heated up only in the internal cycle of an engine in an accelerating way) and a normal cycle (a thermostat is opened after the temperature reaches 80 ℃, and the cooling liquid flows through a radiator to radiate heat), and the heating cycle utilizes the waste heat of the engine to heat the interior of the vehicle. The radiator is usually arranged at the front end of the vehicle, an electric fan is arranged at the rear of the vehicle to strengthen the convection heat dissipation of air, and an air conditioner condenser is also arranged at the front end of part of the vehicle. The water pump maintains the circulating pressure of the cooling liquid, the thermostat automatically switches the circulating mode according to the temperature, and the cooling fan is used for assisting in cooling under the working condition of high temperature or low speed. Under the condition that the vehicle speed is not fast and the external temperature is higher, the cooling effect of blowing of the cooling fan to the radiator is not good, so that the temperature of cooling liquid in the radiator is higher, the cooling effect to the engine is not good, and the engine is damaged. Disclosure of Invention Based on the above, it is necessary to provide a dual-cycle cooling and heat dissipation system for an internal combustion forklift. In order to solve the problems in the prior art, the application adopts the following technical scheme: A dual-circulation cooling and radiating system for an internal combustion forklift comprises The radiator is used for radiating and cooling the cooling liquid; The circulating pump is used for conveying the cooling liquid in the radiator to the engine cooling channel; The thermostat is used for controlling whether the cooling liquid enters the radiator to radiate and cool; the cooling fan is used for carrying out blowing cooling heat dissipation on the radiator; the temperature sensor is arranged at the water outlet end of the radiator and is used for detecting the temperature of cooling liquid coming out of the radiator; the cooling mechanism is used for cooling the cooling liquid in the radiator through the refrigerant in the automobile air conditioner; when the temperature detected by the temperature sensor is higher than a preset value, the cooling liquid in the radiator is cooled by the cooling mechanism. Preferably, the cooling mechanism comprises a first circulating pipe connected to a pipeline between a compressor and an engine in the air conditioning system, a cooling pipe arranged in the radiator, a second circulating pipe connected to an outlet end of a condenser in the air conditioning system, and a cooling pipe connected between one end of the first circulating pipe and one end of the second circulating pipe, wherein the cooling pipe is positioned in the radiator, the first circulating pipe and the air conditioning pipeline are connected and controlled through an electromagnetic valve, and the second circulating pipe and the air conditioning pipeline are connected and controlled through an electromagnetic valve. Preferably, the radiator comprises a radiator core, a water inlet chamber arranged at the upper end of the radiator core, a water inlet pipe arranged on the water inlet chamber, a water outlet chamber arranged at the lower end of the radiator core and a water outlet pipe arranged on the water outlet chamber, and the cooling pipe sequentially passes through the water outlet chamber and the water inlet chamber according to the flow direction of the refrigerant. Preferably, the outer wall of the water inlet chamber is provided with a plurality of mounting holes, the inner wall of each mounting hole is inserted with a heat dissipation rod, the inner wall of the water inlet chamber is provided with a sealing piece for sealing the heat dissipation rod and the inner wall of each mounting hole, and the outer wall of the water inlet chamber is provided with a locking piece for locking the heat dissipation rod on the inner wall of each mounting hole. Preferably, the