CN111878219B - Automatic water supplementing device of radiator and excavator - Google Patents
Automatic water supplementing device of radiator and excavator Download PDFInfo
- Publication number
- CN111878219B CN111878219B CN202010862498.8A CN202010862498A CN111878219B CN 111878219 B CN111878219 B CN 111878219B CN 202010862498 A CN202010862498 A CN 202010862498A CN 111878219 B CN111878219 B CN 111878219B
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- radiator
- kettle
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 322
- 230000001502 supplementing effect Effects 0.000 title abstract description 20
- 238000012544 monitoring process Methods 0.000 claims abstract description 72
- 239000000110 cooling liquid Substances 0.000 claims abstract description 50
- 239000013589 supplement Substances 0.000 claims abstract description 6
- 238000005086 pumping Methods 0.000 claims abstract description 5
- 238000001816 cooling Methods 0.000 claims description 44
- 239000002826 coolant Substances 0.000 claims description 14
- 238000002347 injection Methods 0.000 claims description 7
- 239000007924 injection Substances 0.000 claims description 7
- 239000007788 liquid Substances 0.000 claims description 4
- 230000003020 moisturizing effect Effects 0.000 claims description 4
- 239000000498 cooling water Substances 0.000 claims description 3
- 230000005611 electricity Effects 0.000 claims 1
- 230000000694 effects Effects 0.000 description 10
- 239000000243 solution Substances 0.000 description 4
- 239000000945 filler Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/02—Liquid-coolant filling, overflow, venting, or draining devices
- F01P11/0204—Filling
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/0858—Arrangement of component parts installed on superstructures not otherwise provided for, e.g. electric components, fenders, air-conditioning units
- E02F9/0866—Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P11/00—Component parts, details, or accessories not provided for in, or of interest apart from, groups F01P1/00 - F01P9/00
- F01P11/14—Indicating devices; Other safety devices
- F01P11/18—Indicating devices; Other safety devices concerning coolant pressure, coolant flow, or liquid-coolant level
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P7/00—Controlling of coolant flow
- F01P7/14—Controlling of coolant flow the coolant being liquid
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Component Parts Of Construction Machinery (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
The invention discloses an automatic water supplementing device for a radiator and an excavator, and relates to the technical field of excavators. The device comprises: the device comprises a water level monitoring assembly, an auxiliary kettle, a filling pump and a controller. The water level monitoring assembly is arranged in the water feeding chamber and is used for monitoring the level of the cooling liquid in the water feeding chamber; the auxiliary kettle is used for containing cooling liquid and is communicated with the filling port of the upper water chamber through a first pipeline and used for filling the upper water chamber with the cooling liquid; the filling pump is arranged on the first pipeline and used for pumping the cooling liquid in the auxiliary kettle to the filling port; the controller is electrically connected with the filling pump and the water level monitoring component and is configured to control the filling pump to operate when the water level monitoring component monitors that the water level of the water feeding chamber is lower than a first preset value so as to pump cooling liquid to the filling port, and control the filling pump to stop when the water level monitoring component detects that the water level of the water feeding chamber is equal to or higher than the first preset value. The automatic water supplementing device for the radiator can supplement water for the radiator by an automaton, and is safe, reliable and high in accuracy.
Description
Technical Field
The invention relates to the technical field of excavators, in particular to an automatic water supplementing device for a radiator and an excavator.
Background
The normal operation of a diesel engine of an excavator depends on an engine cooling system, and a radiator is used as a core part of the engine cooling system, and one of the direct factors affecting the effect of the radiator is whether cooling liquid is sufficient or not. Under normal conditions, the mini-excavator is commonly provided with an auxiliary water kettle as a standby water supplementing source of the radiator, and in the running process of the engine, the temperature and the pressure of the cooling system are continuously increased, and cooling liquid enters the auxiliary water kettle through a filling port of the radiator to be stored. When the engine stops working and is cooled, the temperature in the cooling system is reduced to form a vacuum environment, and water in the auxiliary kettle can flow back into the engine cooling system for water supplementing. However, when the water supplementing function of the auxiliary kettle cannot work normally due to faults, the cooling liquid level in the radiator is continuously reduced, and the influence on the engine cooling system is large.
Disclosure of Invention
The invention aims to provide an automatic water supplementing device for a radiator, which can automatically realize water supplementing operation of an engine cooling system, is safe and reliable and has high accuracy, thereby effectively ensuring the cooling effect of the engine cooling system.
Another object of the present invention is to provide an excavator, which can include the above-mentioned radiator automatic water replenishment device. Therefore, the cooling system of the excavator has the advantages of high cooling effect, safety, reliability and high accuracy.
Embodiments of the present invention are implemented as follows:
In a first aspect, an embodiment of the present invention provides an automatic water replenishing device for a radiator, configured to replenish cooling liquid for the radiator, where the radiator is configured to cool an engine, and includes an upper water chamber and a lower water chamber, the upper water chamber is communicated with a water outlet pipe of the engine, the lower water chamber is communicated with a water return pipe of the engine, and the automatic water replenishing device for a radiator includes:
The water level monitoring assembly is arranged in the water feeding chamber and is used for monitoring the water level of the cooling liquid in the water feeding chamber;
The auxiliary kettle is used for containing cooling liquid and is communicated with the filling port of the upper water chamber through a first pipeline and used for filling the upper water chamber with the cooling liquid;
The filling pump is arranged on the first pipeline and used for pumping the cooling liquid in the auxiliary kettle to the filling port;
and the controller is electrically connected with the filling pump and the water level monitoring assembly and is configured to control the filling pump to operate when the water level monitoring assembly monitors that the water level of the water feeding chamber is lower than a first preset value so as to pump cooling liquid to the filling port, and control the filling pump to stop when the water level monitoring assembly detects that the water level of the water feeding chamber is equal to or greater than the first preset value.
In an alternative embodiment, the auxiliary kettle is provided with a highest water level line scale and a lowest water level line scale, the highest water level line scale is arranged adjacent to the top wall of the auxiliary kettle, and the lowest water level line scale is arranged adjacent to the bottom wall of the auxiliary kettle;
An opening is formed in the top wall of the auxiliary kettle, the first end of the first pipeline is communicated with the filling port, and the second end of the first pipeline penetrates through the opening to extend into the auxiliary kettle and to the scale of the lowest water level line.
In an alternative embodiment, the first end of the first conduit communicates with the filler neck via a fitting.
In an alternative embodiment, the water outlet and the water inlet at two ends of the filling pump are respectively communicated with the first pipeline through a rubber pipe, so that the water outlet is communicated with the auxiliary kettle and the water inlet is communicated with the filling port.
In an alternative embodiment, a second pipeline is further arranged between the upper water chamber and the top wall of the auxiliary kettle in a communicating manner, an electromagnetic valve is arranged on the second pipeline, a pressure monitoring component is arranged in the upper water chamber and used for monitoring the pressure in the upper water chamber, the electromagnetic valve and the pressure monitoring component are electrically connected with the controller, and the controller is configured to control the electromagnetic valve to be opened and enable cooling water in the upper water chamber to overflow into the auxiliary kettle for storage until the pressure of the pressure monitoring component is equal to or lower than a second preset value when the monitoring value of the pressure monitoring component is greater than the second preset value.
In an alternative embodiment, the top wall of the auxiliary kettle is provided with an overflow water inlet, the highest water level line is positioned below the overflow water inlet, and the second pipeline passes through the overflow water inlet and is communicated with the auxiliary kettle.
In an alternative embodiment, the water level monitoring assembly is a water level sensor and the pressure monitoring assembly is a pressure sensor.
In an alternative embodiment, the auxiliary water kettle is further provided with a water filling hole, the water filling hole is communicated with air, and the controller is configured to control the filling pump to be closed and remind the auxiliary water kettle of replenishing the cooling liquid through the water filling hole when the water level monitoring assembly monitors that the water level of the water feeding chamber is lower than a first preset value and the water level value monitored again by the water level monitoring assembly after the water level monitoring assembly is controlled to run for a preset time is still lower than the first preset value.
In an alternative embodiment, the automatic water replenishing device of the radiator further comprises a display screen, and the display screen is electrically connected with the controller.
In a second aspect, an embodiment of the present invention provides an excavator, including:
A body;
The engine and the radiator are both arranged on the machine body, the radiator is used for cooling the engine and comprises an upper water chamber and a lower water chamber, the upper water chamber is communicated with a water outlet pipe of the engine, and the lower water chamber is communicated with a water return pipe of the engine;
the automatic water replenishing device for the radiator according to any one of the above embodiments is disposed in the water feeding chamber and is used for automatically replenishing the cooling liquid for the radiator.
The embodiment of the invention has at least the following advantages or beneficial effects:
The embodiment of the invention provides an automatic water supplementing device of a radiator, which is used for supplementing cooling liquid for the radiator, the radiator is used for cooling an engine and comprises an upper water chamber and a lower water chamber, the upper water chamber is communicated with a water outlet pipe of the engine, the lower water chamber is communicated with a water return pipe of the engine, and the automatic water supplementing device of the radiator comprises: the device comprises a water level monitoring assembly, an auxiliary kettle, a filling pump and a controller. The water level monitoring assembly is arranged in the water feeding chamber and is used for monitoring the level of the cooling liquid in the water feeding chamber; the auxiliary kettle is used for containing cooling liquid and is communicated with the filling port of the upper water chamber through a first pipeline and used for filling the upper water chamber with the cooling liquid; the filling pump is arranged on the first pipeline and used for pumping the cooling liquid in the auxiliary kettle to the filling port; the controller is electrically connected with the filling pump and the water level monitoring component and is configured to control the filling pump to operate when the water level monitoring component monitors that the water level of the water feeding chamber is lower than a first preset value so as to pump cooling liquid to the filling port, and control the filling pump to stop when the water level monitoring component detects that the water level of the water feeding chamber is equal to or higher than the first preset value. The automatic water supplementing device of the radiator can automatically realize water supplementing operation of the engine cooling system according to the monitoring result of the water level monitoring assembly, is safe and reliable, and has high accuracy, thereby effectively ensuring the cooling effect of the engine cooling system.
The invention also provides an excavator, which can comprise the radiator automatic water supplementing device. Therefore, the cooling system of the excavator has the advantages of high cooling effect, safety, reliability and high accuracy.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an automatic water replenishing device for a radiator according to an embodiment of the present invention;
Fig. 2 is a schematic view of a partial structure of an excavator according to an embodiment of the present invention.
The icon is 100-radiator automatic water supplementing device; 101-a heat sink; 103-an engine; 105-water outlet pipe; 107-a return pipe; 109-a water feeding chamber; 111-body; 113-a drain chamber; 115-filler; 117-solenoid valve; 119-linker; 121-a pressure monitoring assembly; 123-a water level monitoring assembly; 125-a first conduit; 127-second conduit; 129-rubber tube; 131-an auxiliary kettle; 133-a filling pump; 135-controller; 137-highest water line scale; 139-minimum water line scale; 141-opening holes; 143-overflow water inlet; 145-water injection holes; 147-display screen; 149-water outlet; 151-water inlet.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of 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 apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. The components of the embodiments of the present invention 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 invention, as presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or are directions or positional relationships conventionally put in use of the inventive product, are merely for convenience of describing the present invention and simplifying the description, and are not indicative or implying that the apparatus or element to be referred to must have a specific direction, be constructed and operated in a specific direction, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its 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 explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Fig. 1 is a schematic structural diagram of an automatic water replenishment device 100 for a radiator according to the present embodiment; fig. 2 is a schematic view of a partial structure of the excavator according to the present embodiment. Referring to fig. 1 and 2, the present embodiment provides an excavator, which mainly includes a main body (not shown), an engine 103, a radiator 101, and an automatic radiator water replenishing device 100. The engine 103 and the radiator 101 are provided on the body, and may be both fixedly or detachably connected to the body, for example, may be fixedly mounted on a rotating platform of the body. The engine 103 is the power of the excavator, and can drive the machine body to perform various excavating operations. The radiator 101 is a cooling part of the engine 103 for cooling the engine 103, and ensures that the temperature of the engine 103 is relatively constant, thereby ensuring the use efficiency and life of the engine 103. The automatic radiator water supplementing device 100 is communicated with the radiator 101 and is used for automatically supplementing water for the radiator 101 so as to ensure the working efficiency and quality of the radiator 101 and further ensure the working efficiency of the engine 103. It should be noted that, in this embodiment, the structure of the body of the excavator is not described in detail since the body structure of the excavator is not substantially modified.
In detail, referring to fig. 1 and 2 again, in the embodiment, the engine 103 is communicated with the radiator 101, and the radiator 101 specifically includes a main body 111, an upper water chamber 109 and a lower water chamber 113, the upper water chamber 109 is located above the main body 111, the lower water chamber 113 is located below the main body 111, the upper water chamber 109 is communicated with a water outlet pipe 105 of the engine 103, the lower water chamber 113 is communicated with a water return pipe 107 of the engine 103, water is discharged to the engine 103 through the water outlet pipe 105, and water is returned to the lower water chamber 113 through the water return pipe 107, so that the cooling operation of the engine 103 can be completed, thereby effectively ensuring the working efficiency of the engine 103.
In detail, referring to fig. 1 and 2 again, in the present embodiment, the automatic radiator water replenishment device 100 includes a water level monitoring assembly 123, a sub-kettle 131, a filling pump 133 and a controller 135.
Specifically, the water level monitoring assembly 123 may be selected as a water level sensor installed at the upper water chamber 109 in a vertical direction for monitoring a water level of the upper water chamber 109. Of course, in other embodiments, the water level monitoring assembly 123 may be other components that can provide water level monitoring, and the present embodiment is not limited thereto.
Specifically, the sub-kettle 131 is used for containing the cooling liquid to supplement the cooling liquid of the radiator 101. The auxiliary kettle 131 is of a cylindrical structure, the top wall of the auxiliary kettle 131 is provided with an opening 141, the upper water chamber 109 is provided with a filling port 115, the auxiliary kettle 131 is communicated with the filling port 115 of the upper water chamber 109 through a first pipeline 125, namely, the first end of the first pipeline 125 is communicated with the filling port 115, the second end of the first pipeline 125 penetrates through the opening 141 to extend into the auxiliary kettle 131 and extend below the liquid level of the auxiliary kettle 131, so that cooling liquid in the auxiliary kettle 131 can flow into the upper water chamber 109 through the first pipeline 125 to supplement the cooling liquid in the upper water chamber 109 of the radiator 101, and the cooling liquid can be fully supplied to the engine 103, so that the cooling effect of the engine 103 is guaranteed.
It should be noted that, the first end of the first pipe 125 is specifically connected to the filling port 115 through the joint 119, and the joint 119 may be selected from a general water injection joint 119 or a water connection joint 119, so as to ensure tightness of a connection portion between the first pipe 125 and the filling port 115. Of course, in other embodiments, a seal ring or other sealing assembly may be disposed between the first pipe 125 and the joint 119, and between the joint 119 and the filler neck 115, so as to avoid leakage of the cooling liquid, and the like, which is not limited in this embodiment.
Specifically, in order to ensure that the cooling liquid in the sub-water tank 131 can flow to the upper water chamber 109, the filling pump 133 may be disposed in the first pipe 125, two ends of the filling pump 133 are respectively communicated with the first pipe 125 through the rubber pipe 129, the water inlet 151 on the right side of the filling pump 133 is communicated with the sub-water tank 131 through the rubber pipe 129, and the water outlet 149 on the left side is communicated with the filling port 115 through the rubber pipe 129. So that the filling pump 133 can pump the cooling liquid in the sub-kettle 131 to the joint 119 so as to feed the cooling liquid into the upper water chamber 109 through the filling port 115 to supplement the cooling liquid lacking in the upper water chamber 109.
Specifically, the controller 135 may be selected from a programmable logic controller, a single-chip microcomputer, a computer, or the like. The controller 135 is in communication with both the fill pump 133 and the water level monitoring assembly 123 and is configured to control the fill pump 133 to operate to pump the coolant to the fill port 115 when the water level monitoring assembly 123 detects that the water level of the upper chamber 109 is below a first preset value, and to control the fill pump 133 to stop when the water level monitoring assembly 123 detects that the water level of the upper chamber 109 is equal to or greater than the first preset value. Through the cooperation of water level detection subassembly and filling pump 133 for this automatic moisturizing device 100 of radiator can be according to the automatic moisturizing work that realizes engine 103 cooling system of monitoring result of water level detection subassembly 123, safe and reliable, and the precision is high, thereby guarantees engine 103 cooling system's cooling effect effectively.
It should be noted that, the first preset value is a value obtained according to experience or according to multiple tests, and the size of the first preset value may be adjusted according to requirements, so as to ensure the cooling effect of the engine 103, which is not limited in this embodiment.
As a preferred solution, in this embodiment, in order to intuitively remind the user of the state of the entire cooling system, a display screen 147 may be further provided according to the needs, where the display screen 147 is electrically connected to the controller 135, and is used to display the progress of each task and reminding matters, for example, may display the real-time water level monitored by the water level monitoring component 123, and may send an alarm signal when the water level is insufficient, so as to remind the user, thereby effectively avoiding the occurrence of a safety accident on the basis of ensuring the cooling efficiency.
Referring to fig. 1 and 2 again, in the present embodiment, the sub-kettle 131 is provided with a highest water level mark 137 and a lowest water level mark 139. Wherein, the highest water line scale 137 is arranged adjacent to the top wall of the auxiliary kettle 131, the lowest water line scale 139 is arranged adjacent to the bottom wall of the auxiliary kettle 131, and the position of air can be reserved through the arrangement of the highest water line scale 137, so that the coolant is prevented from overflowing from the auxiliary kettle 131. The arrangement of the lowest water line scale 139 can effectively ensure that a certain volume of cooling liquid is always present in the auxiliary kettle 131, and avoid the loss of the cooling liquid. Meanwhile, at this time, the first end of the first pipe 125 is communicated with the filling port 115, and the second end of the first pipe 125 passes through the opening 141 to extend into the auxiliary water tank 131 and extend into the lowest water line, so as to ensure that the filling pump 133 can effectively process the cooling liquid in the auxiliary water tank 131 to pump to the water feeding chamber 109 of the radiator 101, and solve the problem of the lack of the cooling liquid in the water feeding chamber 109.
In the preferred embodiment, a second pipe 127 is further disposed between the upper water chamber 109 and the top wall of the auxiliary water kettle 131, and an electromagnetic valve 117 is disposed on the second pipe 127. An overflow water inlet 143 and a water injection hole 145 are formed in the top wall of the auxiliary kettle 131, the overflow water inlet 143 and the water injection hole 145 are arranged side by side in the horizontal direction, the highest water level line is located below the overflow water inlet 143, the second pipeline 127 penetrates through the overflow water inlet 143 to be communicated with the auxiliary kettle 131, and the water injection hole 145 is communicated with air. Through the arrangement of the overflow water inlet 143, the water injection hole 145 and the second pipeline 127, the filling pump 133 pumps the cooling liquid in the auxiliary water kettle 131 to the upper water chamber 109, and simultaneously, the air in the upper water chamber 109 is continuously discharged into the auxiliary water kettle 131 and is discharged from the overflow water inlet 143 in the auxiliary water kettle 131.
Meanwhile, a pressure monitoring assembly 121 is arranged in the water feeding chamber 109, the pressure monitoring assembly 121 is used for monitoring the pressure in the water feeding chamber 109, the electromagnetic valve 117 and the pressure monitoring assembly 121 are electrically connected with the controller 135, and the controller 135 is configured to control the electromagnetic valve 117 to be opened and enable cooling water in the water feeding chamber 109 to overflow into the auxiliary kettle 131 for storage until the pressure of the pressure monitoring assembly 121 is equal to or lower than a second preset value when the monitored value of the pressure monitoring assembly 121 is larger than the second preset value. That is, in this embodiment, after the excavator is powered on, the water level monitoring result of the water feeding chamber 109 monitored by the water level monitoring assembly 123 is fed back to the controller 135, when the monitored water level of the cooling liquid does not meet the first preset value required by the normal operation of the engine 103, the controller 135 will send an alarm signal to the display screen 147, and the controller 135 sends instructions to the filling pump 133 and the electromagnetic valve 117 respectively while reminding the user, and the filling pump 133 pumps the cooling liquid in the auxiliary kettle 131 to the water feeding chamber 109, and simultaneously, the air in the water feeding chamber 109 is continuously discharged into the auxiliary kettle 131 and is discharged from the water filling hole 145 in the auxiliary kettle 131. When the water level in the upper water chamber 109 meets the normal water level requirement of the engine 103, the control sends a command to close the water pump and the solenoid valve 117. After the engine 103 is started, the pressure monitoring assembly 121 monitors the pressure of the water feeding chamber 109 (representing the pressure of the cooling system) in real time, and feeds back the pressure to the controller 135, when the cooling pressure rises to a second preset value, the pressure of the cooling system needs to be relieved, at this time, the control sends a command to the electromagnetic valve 117, and part of water in the water feeding chamber 109 overflows into the auxiliary kettle 131 through the second pipeline 127 to be stored until the pressure of the cooling system is lower than the second preset value.
It should be noted that, the second preset value is similar to the first preset value, and may be obtained through empirical determination or multiple experiments, which is not limited in this embodiment.
It should be noted that, since the auxiliary water kettle 131 is further provided with the water filling hole 145, the water filling hole 145 is communicated with air, and therefore, the controller 135 is further configured to control the filling pump 133 to operate for a preset time when the water level of the water feeding chamber 109 is lower than the first preset value, and control the filling pump 133 to be turned off and remind the auxiliary water kettle 131 of replenishing the cooling liquid through the water filling hole 145 when the water level value monitored again by the water level monitoring assembly 123 after the water level monitoring assembly 123 is operated for a preset time is still lower than the first preset value, thereby preventing the occurrence of insufficient cooling liquid and further ensuring the cooling effect of the engine 103.
Note that, the reminding mode may be selected to be displayed through the display screen 147, or may be selected to be electrically connected to the controller 135 through an alarm bell, and when the preset time expires, the alarm bell sounds to remind the user, which is not limited in this embodiment.
It should be noted that the preset time is similar to the first preset value or the second preset value, and is usually measured after multiple experiments, and in this embodiment, the time for pumping the cooling liquid from the highest water level mark 137 to the lowest water level mark 139 may be used. In other embodiments, the preset time, the first preset value, or the second preset value may be adjusted according to requirements, which is not limited in this embodiment.
The following describes in detail the working principles of the automatic radiator water replenishment device 100 and the excavator provided by the embodiment of the present invention:
when the automatic water supplementing device 100 for the radiator of the excavator is utilized to supplement water to the radiator 101 of the excavator, after the excavator is electrified, the coolant water level sensor of the upper water chamber 109 immediately monitors the coolant water level of the upper water chamber 109 and feeds back the coolant water level to the controller 135, when the coolant water level does not meet a first preset value required by normal operation of the engine 103, the controller 135 gives an alarm signal and displays the alarm signal on the display screen 147 so as to remind a user, and the controller 135 sends an instruction to the coolant filling pump 133 and the electromagnetic valve 117 while reminding the user, the filling pump 133 pumps the coolant in the auxiliary water kettle 131 to the upper water chamber 109 through the first pipeline 125, and simultaneously, the air in the upper water chamber 109 is continuously discharged into the auxiliary water kettle 131 through the second pipeline 127 and is discharged through the water filling hole 145 in the auxiliary water kettle 131. When the water level in the upper water chamber 109 meets a first preset value for the normal water level requirement of the engine 103, the controller 135 sends a command to close the coolant fill pump 133 and the solenoid valve 117. Meanwhile, if the water level does not reach the standard after the coolant filling pump 133 is operated for more than the preset time, the amount of coolant in the surface sub-kettle 131 is insufficient, and the controller 135 may close the coolant filling pump 133 and the solenoid valve 117 and prompt the customer that the sub-kettle 131 needs to be filled with coolant.
In addition, after the engine 103 is started and operated, the pressure sensor arranged on the water feeding chamber 109 monitors the pressure of the water feeding chamber 109 (representing the pressure of the cooling system) in real time and feeds back to the controller 135, when the cooling pressure rises to a specific value, the pressure of the cooling system needs to be relieved, at this time, the controller 135 sends an instruction to the electromagnetic valve 117, and part of water in the water feeding chamber 109 overflows into the auxiliary kettle 131 through the second pipeline 127 for storage until the pressure of the cooling system is lower than a second preset value.
In the above process, the automatic water replenishing device 100 for the radiator can automatically realize the water replenishing operation of the cooling system of the engine 103 according to the monitoring result of the water level monitoring assembly 123, and is safe, reliable and high in accuracy, thereby effectively ensuring the cooling effect of the cooling system of the engine 103.
In summary, the automatic water replenishing device 100 for a radiator and the excavator provided by the embodiment of the invention have higher automation and intellectualization, and the water replenishing, pressure relief and air release operations of the cooling system of the engine 103 are all completed by the whole vehicle controller 135 sending instructions to the actuator, thereby being accurate and sensitive. Meanwhile, the device is provided with a liquid level sensor and a pressure sensor for monitoring the pressure of a cooling system of the engine 103 and the liquid level of cooling liquid in real time, so that the device is safe and reliable; and the water level of the water feeding chamber 109 of the radiator 101 is lower than a specified value, an alarm prompt is given, and the safety and reliability of the whole system can be effectively ensured.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (8)
1. An automatic moisturizing device of radiator is used for the radiator supplements coolant liquid, the radiator is used for cooling engine, and it includes upper water chamber and lower hydroecium, the upper water chamber with the outlet pipe intercommunication of engine, the lower hydroecium with the wet return intercommunication of engine, its characterized in that, automatic moisturizing device of radiator includes:
the water level monitoring assembly is arranged in the water feeding chamber and is used for monitoring the water level of the cooling liquid in the water feeding chamber;
The auxiliary kettle is used for containing cooling liquid and is communicated with the filling port of the water feeding chamber through a first pipeline and used for filling the cooling liquid into the water feeding chamber; the auxiliary kettle is also provided with a water injection hole which is communicated with air;
The filling pump is arranged on the first pipeline and used for pumping the cooling liquid in the auxiliary kettle to the filling port;
The controller is electrically connected with the filling pump and the water level monitoring assembly and is configured to control the filling pump to operate so as to pump cooling liquid to the filling port when the water level monitoring assembly monitors that the water level of the water feeding chamber is lower than a first preset value, and control the filling pump to stop when the water level monitoring assembly detects that the water level of the water feeding chamber is equal to or greater than the first preset value;
the controller is configured to control the filling pump to be closed and remind the auxiliary kettle of replenishing the cooling liquid through the water filling hole when the water level monitoring assembly monitors that the water level of the water feeding chamber is lower than a first preset value and the water level value monitored again by the water level monitoring assembly is still lower than the first preset value after the filling pump is controlled to run for a preset time;
And the display screen is electrically connected with the controller.
2. The automatic water replenishing device for a radiator according to claim 1, wherein:
the auxiliary kettle is provided with a highest water level line scale and a lowest water level line scale, the highest water level line scale is arranged adjacent to the top wall of the auxiliary kettle, and the lowest water level line scale is arranged adjacent to the bottom wall of the auxiliary kettle;
an opening is formed in the top wall of the auxiliary water kettle, the first end of the first pipeline is communicated with the filling port, and the second end of the first pipeline penetrates through the opening to extend into the auxiliary water kettle and to the lowest water level line scale.
3. The automatic water replenishing device for a radiator according to claim 2, wherein:
The first end of the first pipe is communicated with the filling port through a joint.
4. The automatic water replenishing device for a radiator according to claim 2, wherein:
The water outlets and the water inlets at two ends of the filling pump are respectively communicated with the first pipeline through rubber pipes, so that the water outlets are communicated with the auxiliary kettle and the water inlets are communicated with the filling port.
5. The automatic water replenishing device for a radiator according to claim 2, wherein:
The utility model discloses a water supply chamber, including the upper water chamber, the roof of vice kettle, the upper water chamber is equipped with the upper water chamber, still communicate between the upper water chamber with the roof of vice kettle is provided with the second pipeline, be equipped with the solenoid valve on the second pipeline, be equipped with pressure monitoring component in the upper water chamber, pressure monitoring component is used for monitoring the pressure in the upper water chamber, the solenoid valve with pressure monitoring component all with the controller electricity is connected, just the controller is configured to work as when pressure monitoring component's monitoring value is greater than the second and presets the value, control opens the solenoid valve and makes the cooling water in the upper water chamber overflows to save in the vice kettle, until pressure monitoring component's pressure equals or is less than the second presets the value.
6. The automatic water replenishing device for a radiator according to claim 5, wherein:
an overflow water inlet is formed in the top wall of the auxiliary kettle, the highest water level line is located below the overflow water inlet, and the second pipeline penetrates through the overflow water inlet and is communicated with the auxiliary kettle.
7. The automatic water replenishing device for a radiator according to claim 5, wherein:
The water level monitoring component is a water level sensor, and the pressure monitoring component is a pressure sensor.
8. An excavating machine, which comprises a main body, characterized by comprising the following steps:
A body;
The engine and the radiator are both arranged on the machine body, the radiator is used for cooling the engine and comprises an upper water chamber and a lower water chamber, the upper water chamber is communicated with a water outlet pipe of the engine, and the lower water chamber is communicated with a water return pipe of the engine;
The automatic water replenishing device for a radiator according to any one of claims 1 to 7, provided in the upper water chamber, and configured to automatically replenish the cooling liquid for the radiator.
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| CN112594054A (en) * | 2021-01-08 | 2021-04-02 | 上海蒸效汽车用品有限公司 | Automatic add vehicle protection device of coolant liquid |
| CN112984877A (en) * | 2021-02-24 | 2021-06-18 | 上海华力微电子有限公司 | Cooling liquid adding device, cooler and semiconductor equipment |
| CN114991249B (en) * | 2022-05-25 | 2024-02-27 | 徐州徐工挖掘机械有限公司 | Thermal management control method for electric excavator |
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| KR200166719Y1 (en) * | 1996-12-27 | 2000-01-15 | 정몽규 | Apparatus of supplying coolant water of the automobile engine |
| CN205101100U (en) * | 2015-11-04 | 2016-03-23 | 安徽安凯汽车股份有限公司 | Engine cooling liquid system is from replenishing device |
| CN106382153B (en) * | 2016-10-10 | 2018-11-13 | 柳州柳工挖掘机有限公司 | Cooling device for construction machine |
| CN208619219U (en) * | 2018-06-30 | 2019-03-19 | 宁波铭业汽车部件有限公司 | A kind of automobile upper water chamber with leakage detection function |
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