CN214363752U - Cooling device of loader and loader - Google Patents
Cooling device of loader and loader Download PDFInfo
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- CN214363752U CN214363752U CN202120351288.2U CN202120351288U CN214363752U CN 214363752 U CN214363752 U CN 214363752U CN 202120351288 U CN202120351288 U CN 202120351288U CN 214363752 U CN214363752 U CN 214363752U
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- cooling
- water
- temperature
- loader
- radiator
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
- H02K9/193—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil with provision for replenishing the cooling medium; with means for preventing leakage of the cooling medium
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
A cooling device of a loader and the loader relate to the technical field of loaders. The cooling device of the loader comprises a cooling water heat dissipation assembly, wherein the cooling water heat dissipation assembly comprises a water tank, a cooling water radiator communicated with the water tank, a water outlet temperature sensor arranged at a water outlet of the cooling water radiator, and a walking water pump, a working water pump and a steering water pump which are respectively connected with the water outlet of the cooling water radiator, wherein the walking water pump, the working water pump and the steering water pump are in one-to-one correspondence and are used for respectively providing cooling water for the walking assembly, the working assembly and the steering assembly through a first channel, a second channel and a third channel, and water outlets of the first channel, the second channel and the third channel are all communicated with a water inlet of the cooling water radiator. The cooling device of the loader can improve the cooling efficiency of the loader.
Description
Technical Field
The utility model relates to a loader technical field particularly, relates to a cooling device and loader of loader.
Background
The loader is a kind of earth and stone construction machinery widely used in highway, railway, building, water and electricity, port and mine, and is mainly used for shoveling and loading bulk materials such as soil, gravel, lime and coal, and also for light shoveling and digging of ores and hard soil. The different auxiliary working devices can be replaced to carry out bulldozing, hoisting and other material loading and unloading operations such as wood. In road construction, particularly in high-grade highway construction, the loader is used for filling and digging of roadbed engineering, and collecting and loading of asphalt mixture and cement concrete yards. Besides, the machine can also carry out the operations of pushing and transporting soil, scraping the ground, pulling other machines and the like. The loader has the advantages of high operation speed, high efficiency, good maneuverability, light operation and the like, so the loader becomes one of the main types of earthwork construction in engineering construction.
However, with the electric operation of the loader and the long-term outdoor work, the temperature rise of the driving motor, the controller, the power converter and the hydraulic oil is greatly tested. In order to make each part of the loader work at the optimum temperature and avoid causing early damage and energy transition loss of mechanical parts, the cooling system is additionally arranged in the loader in the prior art, but the cooling system of the existing loader has low cooling efficiency.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cooling device and loader of loader, its cooling efficiency that can improve the loader.
The embodiment of the utility model is realized like this:
the utility model discloses an aspect, an aspect provides a cooling device of loader, this cooling device of loader includes cooling water radiator unit, wherein, cooling water radiator unit includes the water tank, the cooling water radiator who communicates with the water tank, the delivery port temperature sensor of setting at the delivery port of cooling water radiator, and the walking water pump of being connected with the delivery port of cooling water radiator respectively, work water pump and steering pump, the walking water pump, work water pump and steering pump one-to-one are through first passageway, second passageway and third passageway are used for respectively for walking the subassembly, work subassembly and steering assembly provide the cooling water, first passageway, the delivery port of second passageway and third passageway all communicates with the water inlet of cooling water radiator. The cooling device of the loader can improve the cooling efficiency of the loader.
Optionally, the cooling device of the loader further includes a first cooling fan and a vehicle controller, the vehicle controller is electrically connected to the first cooling fan and the water outlet temperature sensor respectively, and is configured to control start and stop of the first cooling fan according to the temperature of the water outlet temperature sensor, and the first cooling fan is configured to dissipate heat for the cooling water radiator.
Optionally, the number of the first cooling fans is two, the air outlet directions of the two first cooling fans are the same and face the cooling water radiator, and the two first cooling fans are electrically connected with the vehicle control unit respectively, and the vehicle control unit is used for controlling the operation number of the first cooling fans according to the temperature of the water outlet temperature sensor.
Optionally, the walking assembly comprises a first controller, a direct current converter and a walking motor which are connected in sequence; the cooling water heat dissipation assembly further comprises a first temperature collector, the first temperature collector is used for collecting the temperatures of the first controller, the direct current converter and the walking motor, and the vehicle control unit is used for controlling the starting and stopping of the walking water pump according to the temperature of the first temperature collector.
Optionally, the working assembly comprises a second controller and a working motor which are connected in sequence; the cooling water heat dissipation assembly further comprises a second temperature collector, the second temperature collector is used for collecting the temperature of the second controller and the temperature of the working motor, and the whole vehicle controller is used for controlling the starting and stopping of the working water pump according to the temperature of the second temperature collector.
Optionally, the steering assembly comprises a third controller and a steering motor which are connected in sequence; the cooling water heat dissipation assembly further comprises a third temperature collector, the third temperature collector is used for collecting the temperatures of a third controller and the steering motor, and the vehicle control unit is used for controlling the starting and stopping of the steering water pump according to the temperature of the third temperature collector.
Optionally, the cooling device of the loader further comprises a hydraulic oil cooling assembly, wherein the hydraulic oil cooling assembly comprises a multi-way valve, a hydraulic oil radiator and an oil temperature sensor, the multi-way valve is communicated with an oil cylinder of the loader, one outlet of the multi-way valve is communicated with a hydraulic oil tank of the loader, the other outlet of the multi-way valve is communicated with the hydraulic oil tank through the hydraulic oil radiator, the hydraulic oil tank is communicated with an oil pump of the loader, the oil pump is communicated with the oil cylinder, and the oil temperature sensor is used for detecting the temperature of the hydraulic oil tank.
Optionally, the cooling device of the loader further includes a second cooling fan and a vehicle controller, the vehicle controller is electrically connected to the second cooling fan and the oil temperature sensor respectively, and is configured to control start and stop of the second cooling fan according to the temperature of the oil temperature sensor, and the second cooling fan is configured to cool the hydraulic oil radiator.
Optionally, the number of the second cooling fans is two, the air outlet directions of the two second cooling fans are the same and both face the cooling water radiator, and the two second cooling fans are electrically connected with the vehicle controller respectively, and the vehicle controller is used for controlling the operation number of the second cooling fans according to the temperature of the oil temperature sensor.
In another aspect of the present invention, a loader is provided, which includes the cooling device of the above-mentioned loader.
The beneficial effects of the utility model include:
the cooling device of loader that this embodiment provided, including cooling water radiator unit, wherein, cooling water radiator unit includes the water tank, the cooling water radiator with the water tank intercommunication, set up the delivery port temperature sensor at the delivery port of cooling water radiator, and the walking water pump of being connected with the delivery port of cooling water radiator respectively, work water pump and turn to the water pump, the walking water pump, work water pump and turn to the water pump one-to-one through first passageway, second passageway and third passageway are used for providing the cooling water for walking the subassembly respectively, work subassembly and turn to the subassembly, first passageway, the delivery port of second passageway and third passageway all communicates with the water inlet of cooling water radiator. So, in the use, can be through corresponding three export that communicates the cooling water radiator, thereby make the cooling water supply walking water pump respectively, work water pump and steering water pump, thereby select the walking water pump as required, opening or closing of work water pump and steering water pump, thereby make the walking subassembly, work subassembly and steering assembly obtain the cooling radiating effect, simultaneously this application has still adopted delivery port temperature sensor, so that obtain real-time temperature monitoring in the components and parts cooling process that carries out the loader, thereby make in the cooling process, can utilize delivery port temperature sensor's temperature feedback to carry out corresponding adjustment, so that the cooling temperature of monitoring the loader changes, also can improve the cooling effect of loader.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
Fig. 1 is a schematic structural diagram of a cooling device of a loader according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of the cooling water heat dissipation assembly of FIG. 1;
fig. 3 is a schematic structural diagram of the hydraulic oil heat dissipation assembly in fig. 1.
Icon: 10-cooling water heat dissipation assembly; 11-a water tank; 121-water outlet temperature sensor; 12-a cooling water radiator; 13-a walking water pump; 14-a working water pump; 15-a steering pump; 16-a first heat dissipation fan; 171-a first controller; 172-dc converter; 173-a walking motor; 181-a second controller; 182-a working motor; 191-a third controller; 192-a steering motor; 20-hydraulic oil radiator unit; 21-a multi-way valve; 22-hydraulic oil radiator; 23-oil temperature sensor; 24-a second heat dissipation fan; 31-oil cylinder; 32-a hydraulic oil tank; 33-oil pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description and simplification of the description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal", "vertical" and the like do not imply that the components are required to be absolutely horizontal or pendant, but rather may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1 and fig. 2 in combination, the cooling device of the loader includes a cooling water heat dissipation assembly 10, where the cooling water heat dissipation assembly 10 includes a water tank 11, a cooling water heat sink 12 communicated with the water tank 11, a water outlet temperature sensor 121 disposed at a water outlet of the cooling water heat sink 12, and a walking water pump 13, a working water pump 14, and a steering water pump 15 respectively connected to the water outlet of the cooling water heat sink 12, where the walking water pump 13, the working water pump 14, and the steering water pump 15 are in one-to-one correspondence to provide cooling water for the walking assembly, the working assembly, and the steering assembly through a first channel, a second channel, and a third channel, and water outlets of the first channel, the second channel, and the third channel are all communicated with a water inlet of the cooling water heat sink 12. The cooling device of the loader can improve the cooling efficiency of the loader.
It should be noted that the water tank 11 may be used to provide cooling water required by the cooling water heat sink 10 in the cooling water heat sink 12, and the cooling water may be effectively dissipated by the cooling water heat sink 12 so as to be subsequently introduced into a corresponding pipeline for cooling the walking assembly, the working assembly, the steering assembly, and the like.
In addition, the outlets of the cooling water radiator 12 provided in this embodiment include at least three outlets, wherein one outlet is connected to the walking water pump 13 to provide cooling water for the walking water pump 13, so that the walking water pump 13 is used to provide cooling conditions for the walking assembly through the first channel to achieve a cooling effect for the walking assembly; correspondingly, the other outlet is connected with the working water pump 14 to provide cooling water for the working water pump 14, so that the working water pump 14 is used for providing cooling conditions for the working assembly through the second channel to achieve the cooling effect of the working assembly; correspondingly, the other outlet is connected with the steering water pump 15 for providing cooling water for the steering water pump 15, so that the steering water pump 15 is used for providing a cooling condition for the steering assembly through the third channel, and the steering assembly is cooled. It should be understood that the walking assembly, the working assembly and the steering assembly are only examples of the present embodiment, and in other embodiments, the cooling water radiator 12 may further have 4 or 5 outlets, and the like, and correspondingly, the cooling water outlet may further increase the cooling of other parts of the loader.
The delivery port of foretell first passageway, the delivery port of second passageway and the delivery port of third passageway all communicate with cooling water radiator 12, so, cooling water can divide three routes respectively from cooling water radiator 12's delivery port and get into walking water pump 13, work water pump 14 and turn to water pump 15, thereby to walking subassembly, work subassembly and turn to the subassembly and cool down the back, converge the cooling water again in order to get into cooling water radiator 12 (can also not converge and each way converges respectively cooling water radiator 12), thereby can make the cooling water can carry out reuse, make whole cooling water radiator 10 form closed-loop control, thereby do benefit to and carry out the control by temperature change.
In addition, the water outlet temperature sensor 121 may be configured to detect a temperature of the cooling water flowing out of the cooling water radiator 12, and further control a temperature change in time according to the temperature of the cooling water, so as to facilitate temperature control of the entire system.
In summary, the cooling device of the loader provided in this embodiment includes the cooling water heat dissipation assembly 10, wherein the cooling water heat dissipation assembly 10 includes the water tank 11, the cooling water heat sink 12 communicated with the water tank 11, the water outlet temperature sensor 121 disposed at the water outlet of the cooling water heat sink 12, and the walking water pump 13, the working water pump 14 and the steering water pump 15 respectively connected to the water outlet of the cooling water heat sink 12, the walking water pump 13, the working water pump 14 and the steering water pump 15 are in one-to-one correspondence and are used for respectively providing cooling water for the walking assembly, the working assembly and the steering assembly through the first channel, the second channel and the third channel, and the water outlets of the first channel, the second channel and the third channel are all communicated with the water inlet of the cooling water heat sink 12. So, in the use, can be through corresponding the three export that communicates cooling water radiator 12, thereby make the cooling water supply walking water pump 13 respectively, work water pump 14 and turn to water pump 15, thereby select walking water pump 13 as required, work water pump 14 and turn to opening or closing of water pump 15, thereby make the walking subassembly, work subassembly and turn to the subassembly and obtain the cooling radiating effect, delivery port temperature sensor 121 has still been adopted to this application simultaneously, so that obtain real-time temperature monitoring in the components and parts cooling process that carries out the loader, thereby make in the cooling process, can utilize delivery port temperature sensor 121's temperature feedback to carry out the adjustment that corresponds, so that the cooling temperature who monitors the loader changes, also can improve the cooling effect of loader.
In order to facilitate timely and effective adjustment of the temperature of the cooling water according to the temperature of the water outlet temperature sensor 121, optionally, the cooling device of the loader further includes a first cooling fan 16 and a vehicle controller, the vehicle controller is electrically connected to the first cooling fan 16 and the water outlet temperature sensor 121 respectively, and is configured to control start and stop of the first cooling fan 16 according to the temperature of the water outlet temperature sensor 121, and the first cooling fan 16 is configured to dissipate heat for the cooling water radiator 12.
In this way, when the outlet temperature of the cooling water radiator 12 is greater than or equal to the first preset temperature (which is determined by those skilled in the art and according to actual conditions), the vehicle controller may control the first cooling fan 16 to be turned on, so that the first cooling fan 16 is used to radiate heat to the cooling water radiator 12, thereby reducing the temperature of the water outlet of the cooling water radiator 12, so as to reduce the temperature of the cooling water flowing out from the water outlet of the cooling water radiator 12 to an appropriate temperature.
In addition, in this embodiment, the number of the first heat dissipation fans 16 may also include two, the two first heat dissipation fans 16 have the same air outlet direction and both face the cooling water radiator 12, and are respectively electrically connected to the vehicle controller, and the vehicle controller is configured to control the operation number of the first heat dissipation fans 16 according to the temperature of the water outlet temperature sensor 121.
For example, when the outlet temperature of the cooling water radiator 12 is greater than or equal to a first preset temperature and less than a second preset temperature, the vehicle controller may control one of the first cooling fans 16 to be turned on, so that the first cooling fan 16 is used to radiate heat to the cooling water radiator 12, thereby reducing the temperature of the water outlet of the cooling water radiator 12, so that the cooling water flowing out from the water outlet of the cooling water radiator 12 is reduced to an appropriate temperature; when the outlet temperature of the cooling water radiator 12 is higher than the second preset temperature, the vehicle controller may control the other first cooling fan 16 to be turned on, so that the two first cooling fans 16 are used for cooling the cooling water radiator 12 at the same time, thereby reducing the temperature of the water outlet of the cooling water radiator 12, and reducing the temperature of the cooling water flowing out from the water outlet of the cooling water radiator 12 to an appropriate temperature; if the outlet temperature of the cooling water radiator 12 is continuously increased to a third preset temperature, the vehicle control unit can control each motor and the controller to reduce power or stop the vehicle; when the outlet temperature of the cooling water radiator 12 is lower than the first preset temperature, the vehicle controller may control both the first cooling fans 16 to stop working.
Optionally, the walking assembly includes a first controller 171, a dc converter 172 and a walking motor 173 connected in sequence; the cooling water heat dissipation assembly 10 further includes a first temperature collector, the first temperature collector is used for collecting temperatures of the first controller 171, the dc converter 172 and the traveling motor 173, and the vehicle control unit is used for controlling the start and stop of the traveling water pump 13 according to the temperature of the first temperature collector.
The traveling unit includes the first controller 171, the dc converter 172, and the traveling motor 173, which is merely an example of the present embodiment and is not a sole limitation to the components of the traveling unit.
In addition, the first temperature collector is used for collecting the temperatures of the first controller 171, the dc converter 172 and the traveling motor 173, and is provided for the vehicle controller, so that the vehicle controller controls the start and stop of the traveling water pump 13 according to the corresponding temperature values. For example, the first temperature collector may include one or three groups, and in the case of three groups, each group corresponds to a temperature of one component.
In this embodiment, when the temperature of any one of the components, which is acquired by the first temperature acquisition device, exceeds the corresponding maximum working temperature threshold value, the vehicle control unit controls the running water pump 13 to start, so that the running assembly is cooled, and the running assembly is always at the normal working temperature.
For example, under the condition that at least one of the first controller 171, the dc converter 172 and the traveling motor 173 is greater than or equal to the corresponding preset temperature, the vehicle control unit controls the traveling water pump 13 to start; and the vehicle control unit controls the traveling water pump 13 to stop under the condition that the first controller 171, the dc converter 172 and the traveling motor 173 are all lower than the corresponding preset temperatures.
Correspondingly, the working assembly comprises a second controller 181 and a working motor 182 which are connected in sequence; the cooling water heat dissipation assembly 10 further includes a second temperature collector, the second temperature collector is used for collecting temperatures of the second controller 181 and the working motor 182, and the vehicle controller is used for controlling the start and stop of the working water pump 14 according to the temperature of the second temperature collector.
It should be noted that the second temperature collector is used for collecting the temperatures of the second controller 181 and the working motor 182, and is provided for the vehicle controller, so that the vehicle controller controls the start and stop of the working water pump 14 according to the corresponding temperature values.
In this embodiment, when the temperature of any one of the components (i.e., any one of the components in the second controller 181 and the working motor 182) collected by the second temperature collector exceeds the corresponding maximum working temperature threshold, the vehicle control unit controls the working water pump 14 to start, so as to cool the working assembly, so that the working assembly is always at the normal working temperature.
For example, under the condition that at least one of the second controller 181 and the working motor 182 is greater than or equal to the corresponding preset temperature, the vehicle control unit controls the working water pump 14 to start; and the vehicle controller controls the working water pump 14 to stop under the condition that the second controller 181 and the working motor 182 are both lower than the corresponding preset temperatures.
Correspondingly, the steering assembly comprises a third controller 191 and a steering motor 192 which are connected in sequence; the cooling water cooling assembly 10 further includes a third temperature collector, the third temperature collector is used for collecting temperatures of a third controller 191 and the steering motor 192, and the vehicle controller is used for controlling the start and stop of the steering water pump 15 according to the temperature of the third temperature collector.
It should be noted that the third temperature collector is used for collecting the temperatures of the third controller 191 and the steering motor 192, and is provided for the vehicle controller, so that the vehicle controller controls the start and stop of the steering water pump 15 according to the corresponding temperature values.
In this embodiment, when the temperature of any one of the components (i.e., any one of the third controller 191 and the steering motor 192) acquired by the third temperature acquisition unit exceeds the corresponding maximum working temperature threshold, the vehicle control unit controls the steering water pump 15 to start up, and cools the steering assembly, so that the steering assembly is always at the normal working temperature.
For example, under the condition that at least one of the third controller 191 and the steering motor 192 is greater than or equal to the corresponding preset temperature, the vehicle control unit controls the working water pump 14 to start; and under the condition that the third controller 191 and the steering motor 192 are both lower than the corresponding preset temperatures, the vehicle control unit controls the working water pump 14 to stop.
It should be noted that the first temperature collector may be a temperature sensor, so that the temperature sensor may be used to collect the temperature of the first controller 171, the temperature of the dc converter 172, and the temperature of the traveling motor 173 at the same time; the temperature sensor can be embedded into the first controller, the direct current converter and the traveling motor correspondingly, and accordingly the temperature of the corresponding component can be acquired through each temperature sensor. The second temperature collector and the third temperature collector are the same, and the description is omitted here.
In addition, referring to fig. 3 again, in this embodiment, the cooling device of the loader further includes a hydraulic oil heat dissipation assembly 20, where the hydraulic oil heat dissipation assembly 20 includes a multi-way valve 21, a hydraulic oil radiator 22, and an oil temperature sensor 23, the multi-way valve 21 is communicated with an oil cylinder 31 of the loader, one outlet of the multi-way valve 21 is communicated with a hydraulic oil tank 32 of the loader, the other outlet is communicated with the hydraulic oil tank 32 through the hydraulic oil radiator 22, the hydraulic oil tank 32 is communicated with an oil pump 33 of the loader, the oil pump 33 is communicated with the oil cylinder 31, and the oil temperature sensor 23 is configured to detect a temperature of the hydraulic oil tank 32.
It should be noted that the hydraulic oil heat dissipation assembly 20 is mainly used for cooling and dissipating hydraulic oil of the loader, so that the hydraulic oil is always at a normal operating temperature.
The multi-way valve 21 is used for dividing the hydraulic oil flowing out of the oil cylinder 31 into two ways, one way is directly used for supplying the hydraulic oil tank 32, and the other way is supplied to the hydraulic oil tank 32 after being cooled by the hydraulic oil radiator 22, so that the two ways of hydraulic oil which is not cooled and is cooled are mixed in the hydraulic oil tank 32, the temperature in the hydraulic oil tank 32 is reduced as a whole, and the working temperature of the hydraulic oil of the whole loader is reduced.
The oil temperature sensor 23 is used for actually detecting the temperature in the hydraulic oil tank 32, so that the temperature change of the hydraulic oil tank 32 can be conveniently and timely grasped by a worker, and the corresponding regulation and control can be timely performed.
The hydraulic oil in the hydraulic oil tank 32 is supplied to the oil pump 33 to perform corresponding operation when in use, and the oil pump 33 is also connected to the multi-way valve 21 so as to be returned to the cylinder 31 through the multi-way valve 21 to form closed-loop control, so that the hydraulic oil forms a circulation circuit.
Optionally, the hydraulic oil cooling module 20 further includes a second cooling fan 24 and a vehicle controller, the vehicle controller is electrically connected to the second cooling fan 24 and the oil temperature sensor 23 respectively, and is configured to control start and stop of the second cooling fan 24 according to the temperature of the oil temperature sensor 23, and the second cooling fan 24 is configured to cool the hydraulic oil radiator 22. In this way, the vehicle control unit can control the start and stop of the second cooling fan 24 according to the temperature detected by the oil temperature sensor 23, so that the temperature of the hydraulic oil can be adjusted in time.
For example, when the temperature detected by the oil temperature sensor 23 is greater than or equal to a fourth preset temperature (which is determined by those skilled in the art and according to actual conditions), the vehicle controller may control the second radiator fan 24 to be turned on, so that the second radiator fan 24 is used to radiate heat to the hydraulic oil radiator 22, thereby reducing the temperature of the oil outlet of the hydraulic oil radiator 22, so as to reduce the temperature of the hydraulic oil flowing out of the oil outlet of the hydraulic oil radiator 22 to a proper temperature.
Optionally, the number of the second cooling fans 24 is two, the air outlet directions of the two second cooling fans 24 are the same and both face the cooling water radiator 12, and the two second cooling fans are electrically connected to the vehicle controller respectively, and the vehicle controller is configured to control the number of the second cooling fans 24 according to the temperature of the oil temperature sensor 23.
Thus, when the temperature of the oil outlet of the hydraulic oil radiator 22 is greater than or equal to the fourth preset temperature and less than the fifth preset temperature, the vehicle controller may control one of the second cooling fans 24 to be turned on, so that the second cooling fan 24 is used for cooling the hydraulic oil radiator 22, thereby reducing the temperature of the oil outlet of the hydraulic oil radiator 22, and reducing the temperature of the hydraulic oil flowing out of the oil outlet of the hydraulic oil radiator 22 to an appropriate temperature; when the oil outlet temperature of the hydraulic oil radiator 22 is higher than the fifth preset temperature, the vehicle controller may control the other second cooling fan 24 to be also turned on, so that the two second cooling fans 24 are used for cooling the hydraulic oil radiator 22 at the same time, thereby reducing the temperature of the oil outlet of the hydraulic oil radiator 22, and reducing the temperature of the hydraulic oil flowing out of the oil outlet of the hydraulic oil radiator 22 to an appropriate temperature; when the oil outlet temperature of the hydraulic oil radiator 22 is lower than the fourth preset temperature, the vehicle controller may control both the second cooling fans 24 to stop working.
The utility model discloses a further aspect still provides a loader, and this loader includes foretell loader's cooling device. Since the structure and the advantages of the cooling device of the loader are described in detail and explained in the foregoing, they are not described in detail herein.
The above description is only an alternative embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
It should be noted that the various technical features described in the above embodiments can be combined in any suitable manner without contradiction, and in order to avoid unnecessary repetition, the present invention does not need to describe any combination of the features.
Claims (10)
1. The cooling device of the loader is characterized by comprising a cooling water heat dissipation assembly, wherein the cooling water heat dissipation assembly comprises a water tank, a cooling water radiator communicated with the water tank, a water outlet temperature sensor arranged at a water outlet of the cooling water radiator, and a walking water pump, a working water pump and a steering water pump which are respectively connected with the water outlet of the cooling water radiator, the walking water pump, the working water pump and the steering water pump are in one-to-one correspondence and are used for respectively providing cooling water for the walking assembly, the working assembly and the steering assembly through a first channel, a second channel and a third channel, and water outlets of the first channel, the second channel and the third channel are all communicated with a water inlet of the cooling water radiator.
2. The cooling device of the loader according to claim 1, further comprising a first cooling fan and a vehicle controller, wherein the vehicle controller is electrically connected to the first cooling fan and the water outlet temperature sensor, respectively, and is configured to control start and stop of the first cooling fan according to the temperature of the water outlet temperature sensor, and the first cooling fan is configured to dissipate heat from the cooling water radiator.
3. The cooling device of the loader according to claim 2, wherein the number of the first cooling fans is two, the two first cooling fans have the same air outlet direction and both face the cooling water radiator, and are electrically connected to the vehicle controller, respectively, and the vehicle controller is configured to control the number of the first cooling fans according to the temperature of the water outlet temperature sensor.
4. The cooling device of the loader according to claim 3, wherein the walking assembly comprises a first controller, a DC converter and a walking motor which are connected in sequence; the cooling water heat dissipation assembly further comprises a first temperature collector, the first temperature collector is used for collecting the temperatures of the first controller, the direct current converter and the walking motor, and the vehicle control unit is used for controlling the starting and stopping of the walking water pump according to the temperature of the first temperature collector.
5. The cooling device of the loader according to claim 3, wherein the working assembly comprises a second controller and a working motor connected in sequence; the cooling water heat dissipation assembly further comprises a second temperature collector, the second temperature collector is used for collecting the temperatures of a second controller and a working motor, and the vehicle control unit is used for controlling the start and stop of the working water pump according to the temperature of the second temperature collector.
6. The cooling device of the loader of claim 3, wherein the steering assembly comprises a third controller and a steering motor connected in series; the cooling water heat dissipation assembly further comprises a third temperature collector, the third temperature collector is used for collecting the temperatures of a third controller and the steering motor, and the vehicle control unit is used for controlling the turning-on and turning-off of the steering water pump according to the temperature of the third temperature collector.
7. The cooling device of the loader according to claim 1, further comprising a hydraulic oil heat dissipation assembly, wherein the hydraulic oil heat dissipation assembly comprises a multi-way valve, a hydraulic oil radiator and an oil temperature sensor, the multi-way valve is communicated with an oil cylinder of the loader, one outlet of the multi-way valve is communicated with a hydraulic oil tank of the loader, the other outlet of the multi-way valve is communicated with the hydraulic oil tank through the hydraulic oil radiator, the hydraulic oil tank is communicated with an oil pump of the loader, the oil pump is communicated with the oil cylinder, and the oil temperature sensor is used for detecting the temperature of the hydraulic oil tank.
8. The cooling device of the loader according to claim 7, further comprising a second cooling fan and a vehicle controller, wherein the vehicle controller is electrically connected to the second cooling fan and the oil temperature sensor, respectively, and is configured to control start and stop of the second cooling fan according to a temperature of the oil temperature sensor, and the second cooling fan is configured to dissipate heat of the hydraulic oil radiator.
9. The cooling device of the loader according to claim 8, wherein the number of the second radiator fans is two, the two second radiator fans have the same air outlet direction and are both directed to the cooling water radiator and are electrically connected to the vehicle controller, and the vehicle controller is configured to control the number of the second radiator fans according to the temperature of the oil temperature sensor.
10. A loader characterized by comprising a cooling device of a loader according to any one of claims 1 to 9.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011250288.XA CN112104160A (en) | 2020-11-11 | 2020-11-11 | Cooling device of loader and loader |
| CN202011250288X | 2020-11-11 |
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| CN214363752U true CN214363752U (en) | 2021-10-08 |
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| CN202011250288.XA Pending CN112104160A (en) | 2020-11-11 | 2020-11-11 | Cooling device of loader and loader |
| CN202120351288.2U Active CN214363752U (en) | 2020-11-11 | 2021-02-07 | Cooling device of loader and loader |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011250288.XA Pending CN112104160A (en) | 2020-11-11 | 2020-11-11 | Cooling device of loader and loader |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201367608Y (en) * | 2009-03-20 | 2009-12-23 | 中铁五局（集团）有限公司 | Cooling device of hydraulic-oil of loader-digger |
| CN203704768U (en) * | 2013-09-23 | 2014-07-09 | 山东能源机械集团大族再制造有限公司 | Temperature-control water cooling system |
| JP6259371B2 (en) * | 2014-07-31 | 2018-01-10 | 株式会社クボタ | Working machine |
| CN105156405B (en) * | 2015-07-29 | 2019-03-26 | 徐州重型机械有限公司 | Hydraulic oil cooling system, crane and hydraulic oil cooling system control method |
| CN107310384A (en) * | 2017-07-27 | 2017-11-03 | 天津工程机械研究院有限公司 | A kind of all-hydraulic walking transmission system of wheel loader |
| CN210461215U (en) * | 2019-07-18 | 2020-05-05 | 汉能（天津）工业泵有限公司 | Vehicle-mounted hydraulic power system convenient for heat dissipation |
| CN210857339U (en) * | 2019-09-09 | 2020-06-26 | 山东中叉重工机械有限公司 | Heat dissipation system of medium-large tonnage electric loader |
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