CN115164283B - Engineering machinery air conditioning unit and engineering machinery - Google Patents
Engineering machinery air conditioning unit and engineering machinery Download PDFInfo
- Publication number
- CN115164283B CN115164283B CN202210754173.7A CN202210754173A CN115164283B CN 115164283 B CN115164283 B CN 115164283B CN 202210754173 A CN202210754173 A CN 202210754173A CN 115164283 B CN115164283 B CN 115164283B
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- Prior art keywords
- air conditioning
- conditioning unit
- air
- mounting groove
- cab
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F1/00—Room units for air-conditioning, e.g. separate or self-contained units or units receiving primary air from a central station
- F24F1/0007—Indoor units, e.g. fan coil units
- F24F1/0059—Indoor units, e.g. fan coil units characterised by heat exchangers
- F24F1/0063—Indoor units, e.g. fan coil units characterised by heat exchangers by the mounting or arrangement of the heat exchangers
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- 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
- E02F9/16—Cabins, platforms, or the like, for drivers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/20—Casings or covers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
- F24F13/30—Arrangement or mounting of heat-exchangers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G15/00—Details
- F28G15/04—Feeding and driving arrangements, e.g. power operation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28G—CLEANING OF INTERNAL OR EXTERNAL SURFACES OF HEAT-EXCHANGE OR HEAT-TRANSFER CONDUITS, e.g. WATER TUBES OR BOILERS
- F28G9/00—Cleaning by flushing or washing, e.g. with chemical solvents
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/80—Technologies aiming to reduce greenhouse gasses emissions common to all road transportation technologies
- Y02T10/88—Optimized components or subsystems, e.g. lighting, actively controlled glasses
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Air-Conditioning For Vehicles (AREA)
Abstract
The invention relates to the technical field of engineering machinery, and provides an engineering machinery air conditioning unit and engineering machinery, wherein an air conditioning overhaul port is formed in a cab; the air conditioner unit comprises an air conditioner unit main body, an evaporator core and a first guard board, wherein the air conditioner unit main body is provided with a first mounting groove, and the first mounting groove corresponds to an air conditioner overhaul port; the evaporator core is detachably arranged in the first mounting groove; the first backplate detachably sets up on the top of air conditioning unit main part, and the notch of first mounting groove can be sealed to first backplate. The evaporator core can be directly taken down from the air conditioning unit main body on the premise of not disassembling the whole air conditioning unit, the disassembling process is simple and convenient, time and labor are saved, and the maintenance, cleaning or replacement of the evaporator core is convenient; the cab is not required to be detached from the chassis when the evaporator core is dismounted, so that the working strength of operators is reduced, and the tightness of the cab is improved.
Description
Technical Field
The invention relates to the technical field of engineering machinery, in particular to an engineering machinery air conditioning unit and an engineering machinery.
Background
The air conditioning unit of the construction machine is a core component of the air conditioning system, and whether the evaporator core inside the air conditioning unit is blocked or not directly affects the performance of the air conditioning unit itself. Therefore, the evaporator core of the air conditioning unit needs to be cleaned at regular time. The cleaning of the evaporator core has the following effects: the cooling rate of the refrigerant of the air conditioning system is ensured, so that the air conditioner can stably work and cool; the wind blown out by the fan is not blocked, so that the wind can be transferred into the air duct in a large quantity.
The working condition of engineering machinery is bad, and the environment is mostly dust places such as land, coal mine, stone mine and the like, so the evaporator core of the air conditioning unit needs to be cleaned at regular time, and the cleaning frequency is changed differently according to different working conditions.
However, in the prior art, when the air conditioning unit of the engineering machinery is cleaned and maintained, the whole air conditioning unit is required to be completely disassembled for cleaning, the disassembly and assembly process is complex, and the manpower and material resources are consumed; even the air conditioning unit needs to be removed after the cab is removed, so that the working efficiency and the sealing performance of the cab body are greatly affected.
Disclosure of Invention
The invention provides an engineering machinery air conditioning unit and engineering machinery, which are used for solving the defects that the whole air conditioning unit is required to be detached completely for cleaning when the air conditioning unit is cleaned and maintained in the prior art, the disassembly process is complex, time and labor are wasted, and even a cab is required to be detached for disassembling the air conditioning unit.
The invention provides an engineering machinery air conditioning unit, wherein an air conditioning access hole is formed in a cab; the air conditioning unit includes:
the air conditioner unit comprises an air conditioner unit main body, a first air conditioner unit cover and a second air conditioner unit cover, wherein the air conditioner unit main body is provided with a first installation groove with an upward notch, and the notch of the first installation groove corresponds to the air conditioner overhaul port;
an evaporator core detachably disposed in the first mounting groove;
the first backplate, detachably sets up the top of air conditioning unit main part, just first backplate can seal the notch of first mounting groove.
According to the present invention, there is provided an air conditioning unit for construction machinery, further comprising:
the air conditioner unit main body is provided with a second mounting groove, the notch of the second mounting groove corresponds to the air conditioner overhaul hole, and the air heater core is detachably arranged in the second mounting groove;
and the second guard board is detachably arranged at the top end of the air conditioning unit main body and can seal the notch of the second mounting groove.
According to the engineering machinery air conditioning unit provided by the invention, the air conditioning unit main body is further provided with the cleaning tank, the notch of the cleaning tank can correspond to the air conditioning overhaul port, and the cleaning tank is communicated with the first mounting groove.
According to the engineering machinery air conditioning unit provided by the invention, the bottom of the first mounting groove is provided with the liquid draining hole.
According to the engineering machinery air conditioning unit provided by the invention, the first guard plate and the second guard plate are in lap joint or clamping joint.
According to the engineering machinery air conditioning unit provided by the invention, one of the first side end of the first guard plate and the second side end of the second guard plate is provided with the convex part, and the other is provided with the clamping groove for embedding the convex part.
According to the engineering machinery air conditioning unit provided by the invention, the length of the cleaning tank is smaller than that of the first mounting tank.
According to the engineering machinery air conditioning unit provided by the invention, the first mounting groove is internally provided with the first limiting piece, and the first limiting piece limits the evaporator core;
and a second limiting part is arranged in the second mounting groove and limits the warm air core.
The invention also provides an engineering machine, comprising:
the air conditioner comprises a cab, wherein an air conditioner access hole is formed in the cab;
an air conditioning unit, wherein the air conditioning unit is the engineering machinery air conditioning unit.
According to the engineering machinery provided by the invention, the cab is internally provided with the cover body covering the outer side of the air conditioning unit, the air conditioning access opening is arranged at the top end of the cover body, and the top end of the cover body is detachably provided with the cover plate for closing the air conditioning access opening.
According to the engineering machinery air conditioning unit and the engineering machinery, the evaporator core of the air conditioning unit can be directly taken down from the air conditioning unit main body on the premise that the whole air conditioning unit is not dismounted, so that the evaporator core can be overhauled, maintained, cleaned or replaced, the dismounting process is simple and convenient, time and labor are saved, the labor cost is reduced, and the overhauling, cleaning and replacing efficiency of the evaporator core is improved; and because the notch of the first mounting groove of the air conditioning unit corresponds to the air conditioning access hole in the cab, the cab is not required to be detached from the chassis when the evaporator core is dismounted, and the evaporator core can be overhauled or cleaned through the air conditioning access hole directly, thereby being beneficial to reducing the working strength of operators and improving the tightness of the cab.
Drawings
In order to more clearly illustrate the invention or the technical solutions of the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described, and it is obvious that the drawings in the description below are some embodiments of the invention, and other drawings can be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is one of the perspective views of an air conditioning unit for construction machinery provided by the present invention;
FIG. 2 is one of the exploded views of the air conditioning unit of the construction machine provided by the present invention;
FIG. 3 is a top view of an air conditioning unit for construction machinery provided by the present invention;
FIG. 4 is a top view (with the first guard plate hidden) of an air conditioning unit for construction machinery provided by the present invention;
FIG. 5 is a partial schematic view of FIG. 4 (schematic view of the evaporator core in the first mounting groove);
FIG. 6 is a second perspective view of the air conditioning unit of the construction machine provided by the present invention;
FIG. 7 is a top view of an air conditioning unit for construction machinery (concealing the first and second shields) provided by the present invention;
FIG. 8 is one of the schematic views of the evaporator core provided by the present invention removed from the main body of the air conditioning unit;
FIG. 9 is a second schematic view of the evaporator core of the present invention shown removed from the main body of an air conditioning unit;
fig. 10 is a perspective view of an air conditioning unit body provided by the present invention;
FIG. 11 is a schematic view of the present invention when the evaporator core is cleaned by the cleaning gun;
fig. 12 is a schematic view of an installation position of an air conditioning unit provided by the present invention on a construction machine.
Reference numerals:
1. an air conditioning unit main body; 2. an evaporator core; 3. a warm air core;
4. a first mounting groove; 5. a second mounting groove; 6. a first guard plate;
7. a second guard plate; 8. a cleaning tank; 9. a liquid discharge hole;
10. a chassis; 11. a cab; 12. a cover plate;
13. an air conditioning unit; 14. cleaning the gun.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some embodiments of the present invention, not all embodiments. 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.
The construction machine air conditioning unit and the construction machine according to the present invention will be described below with reference to fig. 1 to 12.
The engineering machinery air conditioning unit provided by the invention has the air conditioning access hole in the cab 11, so that an operator can conveniently overhaul the air conditioning unit 13 through the air conditioning access hole.
Here, as shown in fig. 12, the air conditioning unit 13 may be provided on the chassis 10 of the construction machine, and the air conditioning unit 13 is located below the cab 11.
And, the air conditioner access hole may be provided at the top end of the cover body in the cab 11, the cover body being covered outside the air conditioner unit 13, so that an operator directly overhauls the air conditioner unit 13 through the air conditioner access hole.
Wherein, as shown in fig. 1 and 2, the air conditioning unit 13 includes an air conditioning unit main body 1 and an evaporator core 2, the air conditioning unit main body 1 is provided with a first installation groove 4, the evaporator core 2 is detachably arranged in the first installation groove 4, and the notch of the first installation groove 4 corresponds to an air conditioning access hole, thus facilitating the disassembly and assembly of the evaporator core 2.
The air conditioning unit 13 further includes a first protector plate 6, the first protector plate 6 being detachably provided at the top end of the air conditioning unit body 1, and the first protector plate 6 being capable of closing the notch of the first mounting groove 4, so that the evaporator core 2 can be sealed in the first mounting groove 4 by the first protector plate 6 to protect the evaporator core 2.
Here, the notch of the first mounting groove 4 corresponds to the air conditioner access hole, specifically, the air conditioner unit body 1 is disposed below the air conditioner access hole, so that the air conditioner unit 13 can be directly overhauled through the air conditioner access hole, for example, when the evaporator core 2 needs to be overhauled or replaced or cleaned, the first guard plate 6 can be detached from the air conditioner unit body 1 through the air conditioner access hole, and then the evaporator core 2 is taken out from the first mounting groove 4, so that the detachment of the evaporator core 2 can be completed. Thus, the evaporator core 2 can be taken down from the air conditioner unit main body 1 after the first guard plate 6 is directly removed without removing the whole air conditioner unit 13 and then removing the evaporator core 2 from the air conditioner unit 13, and the assembly and the disassembly are convenient and quick; and without removing the cab 11 from the chassis 10.
The evaporator core 2 can be directly taken down from the air conditioning unit main body 1 on the premise of not disassembling the whole air conditioning unit 13, so that the evaporator core 2 is convenient to overhaul, maintain, clean or replace, the disassembling process is simple and convenient, time and labor are saved, the labor cost is reduced, and the overhaul, cleaning and replacement efficiency of the evaporator core 2 is improved; and since the air conditioning unit 13 is located below the air conditioning access opening in the cab 11, the cab 11 does not need to be removed from the chassis 10 when the evaporator core 2 is detached, thereby contributing to a reduction in the working strength of operators and to an improvement in the sealability of the cab 11.
In an alternative embodiment of the invention, the engineering machinery air conditioning unit further comprises a warm air core 3 and a second guard plate 7, wherein the air conditioning unit main body 1 is provided with a second mounting groove 5, the notch of the second mounting groove 5 corresponds to an air conditioning overhaul port, so that the warm air core 3 is convenient to overhaul or disassemble and assemble, and the warm air core 3 is detachably arranged in the second mounting groove 5, so that the warm air core 3 is convenient to disassemble and assemble; the second guard 7 is detachably provided at the top end of the air conditioning unit body 1, and the second guard 7 can close the notch of the second installation groove 5 to seal the warm air core 3 in the second installation groove 5, thereby protecting the warm air core 3.
When the air conditioner unit works and meets the requirement of overhauling, replacing or cleaning the warm air core 3, the second guard plate 7 can be detached from the air conditioner unit main body 1 through an air conditioner overhauling hole, and then the warm air core 3 is taken out from the second mounting groove 5, so that the warm air core 3 can be detached. In this way, the warm air core 3 can be taken down from the air conditioner unit main body 1 after the second guard plate 7 is directly removed without removing the whole air conditioner unit 13 and then removing the warm air core 3 from the air conditioner unit 13, so that the warm air conditioner unit is convenient and quick to detach; and without removing the cab 11 from the chassis 10.
In the present embodiment, the first protector plate 6 and the second protector plate 7 are detachably attached to the air conditioning unit main body 1.
In the first embodiment, the first protector plate 6 and the second protector plate 7 can be detachably connected to the air conditioning unit main body 1 by bolts. Specifically, the first guard plate 6 may be provided with a plurality of first bolt holes through which bolts pass, and the second guard plate 7 may be provided with a plurality of second bolt holes through which bolts pass; and the top end of the air conditioning unit body 1 may be provided with a plurality of first connection holes and a plurality of second connection holes, the plurality of first connection holes may be provided around the notch of the first installation groove 4, and the plurality of first bolt holes may be in one-to-one correspondence with the plurality of first connection holes so that bolts extend into the first connection holes through the first bolt holes; the plurality of second connecting holes may be provided around the notch of the second mounting groove 5, and the plurality of second bolt holes are in one-to-one correspondence with the plurality of second connecting holes so that the bolts extend into the second connecting holes through the second bolt holes. Here, the first and second coupling holes may be screw holes, and the screw holes are matched with the bolts, so that the first and second shields 6 and 7 can be coupled to the air conditioning unit main body 1 by the bolts.
In the second embodiment, the first guard 6 and the second guard 7 may be inserted into or engaged with the air conditioning unit body 1.
Specifically, one of the first protection plate 6 and the air conditioning unit main body 1 may be provided with a first insert, the other may be provided with a first slot, the first insert is matched with the first slot, and the first insert can be inserted into the first slot, so that the first protection plate 6 is inserted into the air conditioning unit main body 1.
One of the second guard 7 and the air conditioning unit body 1 may be provided with a second insert, the other may be provided with a second slot, the second insert is matched with the second slot, and the second insert may be inserted into the second slot, so that the second guard is inserted into the air conditioning unit body 1.
Here, a plurality of first plug-ins may be provided on the first protection board 6, a plurality of second plug-ins may be provided on the second protection board, a plurality of first slots and a plurality of second slots may be provided on the top end of the air conditioning unit main body 1, and a plurality of first slots may be provided around the first mounting groove 4, a plurality of second slots may be provided around the second mounting groove 5, a plurality of first plug-ins are in one-to-one correspondence with a plurality of first slots, and a plurality of second plug-ins are in one-to-one correspondence with a plurality of second slots. In this way, it is advantageous to improve the connection stability of the first and second shields 6 and 7 to the air conditioning unit main body 1.
In an alternative embodiment, the first guard 6 and the second guard 7 overlap or snap-fit. In this way, the sealability of the evaporator core 2 and the warm air core 3 is advantageously improved, so that the sealability of the air conditioning unit 13 is improved, and external dust and the like can be effectively prevented from entering the first mounting groove 4 and the second mounting groove 5 and being deposited on the evaporator core 2 and the warm air core 3.
In one manner, the first guard plate 6 and the second guard plate 7 overlap, specifically, the first side end of the first guard plate 6 is provided with a first overlap plate, the second side end of the second guard plate 7 is provided with a second overlap plate, and the first overlap plate can cover over the second overlap plate, so that overlapping of the first guard plate 6 and the second guard plate 7 can be achieved.
It should be noted that, the first guard plate 6 and the first lapping plate may be an integral structure, and the thickness of the first lapping plate may be smaller than the thickness of the first guard plate 6; the second guard 7 and the second bridging plate may be of unitary construction, and the thickness of the second bridging plate may be less than the thickness of the second guard 7.
Here, the upper surface of the first lapping plate may be flush with the upper surface of the first guard plate 6, and the lower surface of the second lapping plate may be flush with the lower surface of the second guard plate 7, and the first lapping plate and the second lapping plate form a lapping body when lapped, and the thickness of the lapping body may be the same as the thicknesses of the first guard plate 6 and the second guard plate 7.
And, the length of first strap can be unanimous with the length of first backplate 6, and the length of second strap can be unanimous with the length of second backplate 7, like this, can effectively improve the steadiness that first backplate 6 and second backplate 7 are connected to can effectively improve the leakproofness of first backplate 6 to the evaporimeter core 2 and the leakproofness of second backplate 7 to the warm braw core 3.
In another mode, the first guard plate 6 and the second guard plate 7 are clamped, specifically, one of the first side end of the first guard plate 6 and the second side end of the second guard plate 7 is provided with a convex part, and the other is provided with a clamping groove for embedding the convex part, so that the connection stability of the first guard plate 6 and the second guard plate 7 is improved, and the first guard plate 6 and the second guard plate 7 are prevented from being misplaced or falling off from the air conditioner unit main body 1 when the engineering machine works.
In this embodiment, the first side end of the first guard plate 6 may be provided with a protruding portion, the second side end of the second guard plate 7 may be provided with a clamping groove, and the protruding portion may be embedded into the clamping groove, and the protruding portion may be adapted to the clamping groove, so that the first guard plate 6 and the second guard plate 7 may be clamped, which is beneficial to improving the stability of the first guard plate 6 and the second guard plate 7.
Further, the first side end of the first guard plate 6 may be provided with a plurality of protrusions, and the plurality of protrusions may be distributed along the length direction of the first guard plate 6; the second side end of the second guard plate 7 can be provided with a plurality of clamping grooves, the clamping grooves can be distributed along the length direction of the second guard plate 7, the clamping grooves correspond to the convex parts one by one, the convex parts can be embedded into the clamping grooves respectively, so that the first guard plate 6 and the second guard plate 7 can be clamped, and the stability of the first guard plate 6 and the second guard plate 7 is further improved.
It should be noted that the first side end of the first guard plate 6 may be an end near the second guard plate 7, and the second side end of the second guard plate 7 may be an end near the first guard plate 6.
In an alternative embodiment of the present invention, the air conditioning unit body 1 is further provided with a cleaning tank 8, the cleaning tank 8 is communicated with the first installation tank 4, and the notch of the cleaning tank 8 corresponds to an air conditioning service hole, specifically, the notch of the cleaning tank 8 is provided upward, and the cleaning tank 8 is used for the entry of a cleaning gun 14, so that the cleaning gun can spray cleaning liquid to the evaporator core 2 for cleaning the evaporator core 2. Like this, need not to pull down the evaporator core 2 from air conditioning unit main part 1 and pull down first backplate 6 through the air conditioner access hole and can wash the evaporator core 2, wash convenient and fast, be favorable to reducing operating personnel's work load.
Here, the cleaning gun 14 may be connected to a cleaning pipe capable of supplying the cleaning liquid, and the cleaning gun 14 includes a nozzle that can be rotated by 360 degrees so as to perform the dead-angle-free cleaning of the evaporator core 2, thereby improving the cleaning effect of the evaporator core 2.
In an alternative embodiment, the bottom of the first installation groove 4 is provided with a drain hole 9 for the outflow of the cleaning liquid, and also for the drainage of the condensate water produced by the evaporator core 2.
Specifically, a plurality of drain holes 9 may be provided at the bottom of the first installation groove 4 to improve the drain effect and avoid accumulation of cleaning liquid or condensed water in the first installation groove 4.
Here, the drain hole 9 may communicate with a drain pipe of the air conditioning unit body 1 so that the cleaning liquid or condensed water is discharged to the outside of the air conditioning unit 13.
In an alternative embodiment, the length of the cleaning tank 8 may be smaller than the length of the first installation tank 4, so that the tank wall of the cleaning tank 8 may have a certain limit effect on the evaporator core 2, so that the entry of the evaporator core 2 from the first installation tank 4 into the cleaning tank 8 can be avoided.
Here, the cross-sectional shape of the cleaning tank 8 may be trapezoidal.
In this embodiment, the width of the cleaning tank 8 may be 10-15mm, where the width of the cleaning tank 8 may be 13mm. Alternatively, the width of the cleaning tank 8 may be adapted to the spray head of the cleaning gun 14 so as to facilitate the entry of the cleaning gun 14 into the cleaning tank 8.
In the present embodiment, the first guard plate 6 can close the notch of the cleaning tank 8 to prevent external dust and the like from entering the first installation groove 4 through the cleaning tank 8.
In an alternative embodiment of the present invention, a first limiting member is disposed in the first mounting groove 4, and the first limiting member limits the evaporator core 2, so that the evaporator core 2 cannot shake due to stress during running or operation of the construction machine.
Specifically, the two sides of the first limiting piece are respectively propped against the evaporator core 2 and the groove wall of the first mounting groove 4, so that the first limiting piece can limit and fix the evaporator core 2 to avoid the evaporator core 2 from shaking.
Here, both sides of the first stopper may be respectively interference-fitted with the evaporator core 2 and the groove walls of the first mounting groove 4 to further prevent the evaporator core 2 from being subject to shaking.
The second locating part is arranged in the second mounting groove 5 and limits the warm air core 3, so that the warm air core 3 cannot shake due to stress in the running or operation process of the engineering machinery.
Specifically, the second limiting piece is propped against the warm air core 3 and the groove wall of the second installation groove 5, so that the second limiting piece can play a limiting role on the warm air core 3 to avoid the warm air core 3 from shaking.
Here, both sides of the second limiting member may be respectively interference-fitted with the evaporator core 2 and the groove wall of the second installation groove 5, so as to further prevent the warm air core from shaking due to the force.
In an alternative embodiment, the first stopper and the second stopper may have a ring-shaped structure, and the first stopper may be circumferentially disposed on the circumferential side of the evaporator core 2, and the second stopper may be circumferentially disposed on the circumferential side of the warm air core 3.
Here, the first limiting member and the second limiting member may be sponge, or other elastic materials.
In an alternative embodiment of the present invention, a first air inlet communicating with the air inlet channel and a first air outlet communicating with the air outlet channel are provided on the wall of the first installation groove 4, and the first air inlet and the first air outlet are located on the air inlet side and the air outlet side of the evaporator core 2, respectively.
A second air inlet communicated with the air inlet channel and a second air outlet communicated with the air outlet channel are arranged on the wall of the second mounting groove 5, and the second air inlet and the second air outlet are respectively positioned on the air inlet side and the air outlet side of the warm air core 3.
In an alternative embodiment, the first limiting member may be provided with a first through hole respectively communicating with the first air inlet and the second air outlet, so as to avoid that the first limiting member has a blocking effect on the air flowing so that the air cannot flow through the evaporator core 2; the second limiting piece can be provided with a second through hole which is respectively communicated with the second air inlet and the second air outlet, so that the phenomenon that the air cannot flow through the warm air core 3 due to the blocking effect of the second limiting piece on the air circulation is avoided.
In an alternative embodiment, the air conditioning unit may further comprise an expansion valve, and a recess may be provided above the first guard 6, and the expansion valve may be provided in the recess. The expansion valve is also called a throttle valve, is a main component of the engineering machinery air-conditioning refrigerating system, is arranged at the inlet of the evaporator, and is a boundary point between high pressure and low pressure of the engineering machinery air-conditioning refrigerating system. The expansion valve functions as: the high-pressure liquid refrigerant from the liquid storage dryer is throttled and decompressed, the amount of the liquid refrigerant entering the evaporator is regulated and controlled to adapt to the change of refrigeration load, and meanwhile, the phenomenon of liquid impact of the compressor (namely, the liquid refrigerant which is not evaporated is compressed after entering the compressor, and the damage of a valve plate of the compressor is easily caused) and abnormal overheating of vapor at the outlet of the evaporator can be prevented.
The invention provides an air conditioning unit of engineering machinery, which is arranged on a chassis 10 of engineering machinery, an air conditioning overhaul hole is arranged in a cab 11 of the engineering machinery, an air conditioning unit main body 1 of an air conditioning unit 13 is arranged below the air conditioning overhaul hole, a first mounting groove 4 and a second mounting groove 5 are arranged on the air conditioning unit main body 1, the first mounting groove 4 and the second mounting groove 5 can be arranged side by side, the notches of the first mounting groove 4 and the second mounting groove 5 are upwards arranged, an evaporator core 2 and a warm air core 3 are respectively and detachably arranged on the first mounting groove 4 and the second mounting groove 5, a first guard plate 6 and a second guard plate 7 are respectively and detachably arranged at the top end of the air conditioning unit main body 1, and the first guard plate 6 and the second guard plate 7 can respectively seal the notches of the first mounting groove 4 and the second mounting groove 5 so as to seal the evaporator core 2 and the warm air core 3 on the air conditioning unit main body 1; when the evaporator core 2 or the warm air core 3 is required to be overhauled or cleaned, the first guard plate 6 or the second guard plate 7 can be detached through the air conditioner overhauling hole, the evaporator core 2 or the warm air core 3 can be directly taken out from the first mounting groove 4 or the second mounting groove 5, the whole air conditioner unit 13 is not required to be detached, and the disassembly and the assembly are convenient. In addition, the air conditioning unit main body 1 is provided with the cleaning tank 8, and when the evaporator core 2 needs to be cleaned, the cleaning gun 14 connected with the cleaning pipe can be directly placed in the cleaning tank 8, the cleaning gun 14 is aligned with the evaporator core 2, and cleaning liquid is sprayed to the evaporator core 2, so that the evaporator core 2 can be cleaned. Therefore, the evaporator core 2 can be directly cleaned under the condition that the evaporator core 2 is not taken out, so that the time and the labor are saved, and the operation is convenient.
The construction machine provided by the invention is described below, and the construction machine described below and the construction machine air conditioning unit described above can be referred to correspondingly.
The engineering machinery provided by the invention comprises a cab 11 and an air conditioning unit 13, wherein an air conditioning access hole is formed in the cab 11, and an operator can overhaul the air conditioning unit 13 through the air conditioning access hole. The air conditioning unit 13 may be the construction machine air conditioning unit according to any one of the embodiments described above.
The beneficial effects achieved by the engineering machinery are consistent with those achieved by the engineering machinery air conditioning unit provided by the invention, the evaporator core 2 can be directly taken down from the air conditioning unit main body 1 on the premise of not disassembling the whole air conditioning unit 13, so that the evaporator core 2 is convenient to overhaul, maintain, clean or replace, the disassembling process is simple and convenient, time and labor are saved, the labor cost is reduced, and the overhaul, cleaning and replacement efficiency of the evaporator core 2 is improved; and since the air conditioning unit 13 is located below the air conditioning access opening in the cab 11, the cab 11 does not need to be removed from the chassis 10 when the evaporator core 2 is detached, thereby contributing to a reduction in the working strength of operators and to an improvement in the sealability of the cab 11.
In an alternative embodiment of the invention, a cover is provided in the cab 11, the cover being outside the air conditioning unit 13, and an air conditioning access opening being provided at the top end of the cover, so that an operator can access the air conditioning unit 13 directly through the air conditioning access opening. For example, when the evaporator core 2 or the warm air core 3 needs to be overhauled, replaced or cleaned, the first guard plate 6 or the second guard plate 7 can be detached from the air conditioning unit main body 1 through the air conditioning overhauling hole, and then the evaporator core 2 is taken out from the first mounting groove 4 or the warm air core 3 is taken out from the second mounting groove 5, so that the detachment of the evaporator core 2 or the warm air core 3 can be completed.
In the present embodiment, the construction machine may further include a chassis 10, and the air conditioning unit 13 and the cab 11 are both provided on the chassis 10. The bottom end of the cover in the cab 11 contacts the chassis 10 to form a cavity for accommodating the air conditioning unit 13 with the chassis 10.
And, the top of the cover body is detachably provided with a cover plate 12, and the cover plate 12 is used for closing an air conditioner access hole, so that the air conditioner unit 13 can be protected to a certain extent through the cover plate 12, and external dust and the like can be effectively prevented from entering the air conditioner unit 13.
In this embodiment, the engineering machine may be a pump truck, a crane, an excavator, or other engineering vehicles provided with an air conditioner.
The apparatus embodiments described above are merely illustrative, wherein the elements illustrated as separate elements may or may not be physically separate, and the elements shown as elements may or may not be physical elements, may be located in one place, or may be distributed over a plurality of network elements. Some or all of the modules may be selected according to actual needs to achieve the purpose of the solution of this embodiment. Those of ordinary skill in the art will understand and implement the present invention without undue burden.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (9)
1. An engineering machinery air conditioning unit is characterized in that an air conditioning access hole is formed in a cab, and the air conditioning access hole is arranged at the top end of a cover body in the cab; the air conditioning unit includes:
the air conditioner unit main body is positioned below the air conditioner overhaul port and is provided with a first installation groove and a second installation groove, the first installation groove and the second installation groove are arranged side by side, the notch of the first installation groove and the notch of the second installation groove are both arranged upwards, and the notch of the first installation groove and the notch of the second installation groove are both corresponding to the air conditioner overhaul port;
an evaporator core detachably disposed in the first mounting groove;
the warm air core is detachably arranged in the second mounting groove;
the first backplate and second backplate, detachably set up the top of air conditioning unit main part, just first backplate can seal the notch of first mounting groove, the second backplate can seal the notch of second mounting groove.
2. The engineering machinery air conditioning unit according to claim 1, wherein the air conditioning unit main body is further provided with a cleaning tank, a notch of the cleaning tank corresponds to the air conditioning service opening, and the cleaning tank is communicated with the first installation groove.
3. The air conditioning unit according to claim 2, wherein a drain hole is provided at a bottom of the first installation groove.
4. The work machine air conditioning unit of claim 1, wherein the first and second shields overlap or snap-fit.
5. The construction machine air conditioning unit according to claim 4, wherein one of the first side end of the first guard plate and the second side end of the second guard plate is provided with a protrusion, and the other is provided with a groove into which the protrusion is fitted.
6. The work machine air conditioning unit of claim 2, wherein the length of the cleaning tank is less than the length of the first mounting tank.
7. The air conditioning unit according to claim 1, wherein a first stopper is provided in the first installation groove, and the first stopper limits the evaporator core;
and a second limiting part is arranged in the second mounting groove and limits the warm air core.
8. A construction machine, comprising:
the air conditioner comprises a cab, wherein an air conditioner access hole is formed in the cab;
an air conditioning unit, which is an air conditioning unit for construction machinery according to any one of claims 1 to 7.
9. The construction machine according to claim 8, wherein a cover body covering the outside of the air conditioning unit is provided in the cab, the air conditioning access opening is provided at a top end of the cover body, and a cover plate for closing the air conditioning access opening is detachably provided at the top end of the cover body.
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| CN202210754173.7A CN115164283B (en) | 2022-06-28 | 2022-06-28 | Engineering machinery air conditioning unit and engineering machinery |
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| CN202210754173.7A CN115164283B (en) | 2022-06-28 | 2022-06-28 | Engineering machinery air conditioning unit and engineering machinery |
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| CN115164283A CN115164283A (en) | 2022-10-11 |
| CN115164283B true CN115164283B (en) | 2023-08-22 |
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