CN211252128U

CN211252128U - Side-mounted cooling and heating air conditioner of crawler excavator

Info

Publication number: CN211252128U
Application number: CN201922163908.5U
Authority: CN
Inventors: 黄景灿; 戴佳
Original assignee: Cancoo Fujian Auto Air Conditioning Co ltd
Current assignee: Cancoo Fujian Auto Air Conditioning Co ltd
Priority date: 2019-12-06
Filing date: 2019-12-06
Publication date: 2020-08-14
Anticipated expiration: 2029-12-06

Abstract

A side-mounted cooling and heating air conditioner of a crawler excavator belongs to the technical field of vehicle-mounted air conditioning engineering and comprises a compressor, an evaporator, a condenser and a pipeline, wherein the compressor is connected to a belt pulley of an engine through a belt, the evaporator is installed on one side in a cab, and the condenser is installed outside the cab; the pipeline divide into warm braw water pipe, evaporates the pressure pipeline, presses cold pipeline and cold pipeline of evaporating, and warm braw water pipe comprises two and connects respectively between engine water tank and warm braw heat exchanger's output and input, input and output, evaporates the pipe connection between the suction end of evaporimeter and compressor, presses cold pipe connection between the output of compressor and condenser, and the cold pipe connection that evaporates is between condenser and evaporimeter.

Description

Side-mounted cooling and heating air conditioner of crawler excavator

Technical Field

The utility model relates to a vehicle-mounted air conditioner, in particular to a side-mounted cooling and heating air conditioner of a crawler excavator, which belongs to the technical field of vehicle-mounted air conditioning engineering.

Background

The conventional construction machine is simple in terms of facility matching in an operating environment, and basically has a housing covering an operating system and a seat in a cab, and has no matching with an air conditioner and a heater. In the social development, designers of engineering machinery are widely popularized in matching design of facilities such as air conditioners despite the improvement of humanized concept. However, the cab is greatly modified due to the matching design of the air conditioner, and the arrangement design of the main components of the air conditioner can only be performed in a pin-inserting manner due to certain difficulty caused by the design of problems such as the change of a mold with a high price. The challenge is obvious to those skilled in the art of vehicle air conditioner kit design, whether for retrofitting a conventional machine or for fitting a new machine.

Disclosure of Invention

In order to solve the technical problem that the engineering machinery carries out the configuration of the cooling and heating air conditioner in the limited space of the cab, the utility model provides a side cooling and heating air conditioner of a crawler excavator.

The utility model adopts the technical proposal that: a side-mounted cooling and heating air conditioner of a crawler excavator comprises a compressor, an evaporator, a condenser and a pipeline, wherein the compressor is connected to a belt pulley of an engine through a belt, the evaporator is installed on one side in a cab, and the condenser is installed outside the cab; the pipeline divide into warm braw water pipe, evaporates and presses pipeline, pressure cold pipeline and cold pipeline of evaporating, evaporates and presses the pipe connection between the suction end of evaporimeter and compressor, presses cold pipe connection between the output of compressor and condenser, and the cold pipeline of evaporating is connected between condenser and evaporimeter.

The evaporator comprises a box body, a warm air heat exchanger, an evaporator core body and a fan, wherein the box body comprises an air outlet, an installation chamber, an air inlet, a fan base, a fan chamber and a cover plate, the air outlet consists of two air outlets which are arranged in front of the box body and are simultaneously connected with an air cavity of a cab through an air pipe, the air inlet is arranged at one side of the rear end of the box body and is communicated with the fan chamber, an active carbon fresh air filter screen is also arranged outside the air inlet, the warm air heat exchanger and the evaporator core body are isolated by a water filter screen and are arranged in the installation chamber in a front-back mode, the fan base is provided with an air outlet channel corresponding to the fan air outlet and is arranged in the fan chamber through the fan base, the cover plate is connected to the upper side of the box body and is provided with a pipeline joint, a warm air water pipe consists of two air pipes which are respectively connected between the, a temperature sensor is also arranged below the box body.

The condenser comprises a support, a condensation fan, a condensation core body and a drying bottle, the support is of a metal frame structure and is connected to the outer wall of the cab, the condensation fan is installed on the back of the support, the condensation core body is installed in the front of the support, the drying bottle is installed on one side of the back of the support through a connecting piece, and the drying bottle is connected between the evaporator and the condensation core body through a cold evaporation pipeline.

The utility model has the advantages that: connect the compressor at machine engine belt pulley and with warm braw heat exchanger and evaporimeter design as an organic whole, and adorn in the inside side of driver's cabin, when effectively saving the inside finite space of driver's cabin, still install the active carbon filter screen outside the air intake, can effectually filter out the harmful substance that gets into the evaporimeter air to air conditioner life and operating personnel's the pollution of avoiding has been ensured. The cold and warm air conditioner utilizes surplus power of the engine and hot water of the water tank to refrigerate and heat the cab, provides a humanized operation environment for the cab on the premise of not increasing energy consumption, can improve the working efficiency and effectively ensures physical and psychological health of operators.

Drawings

The present invention will be further explained with reference to the accompanying drawings:

FIG. 1 is a schematic view of the overall structure of the utility model;

FIG. 2 is a schematic exploded perspective view of the evaporator;

fig. 3 is a schematic exploded perspective view of the condenser.

In the figure, the air conditioner comprises a compressor 1, a compressor 2, an evaporator 3, a condenser 4, a warm air water pipe 5, an autoclaved pipeline 6, a pressure cooling pipeline 7, a cold evaporation pipeline 8, a box 9, a warm air heat exchanger 10, an evaporator core 11, a fan 12, an air outlet 13, an installation chamber 14, an air inlet 15, a fan seat 16, a fan chamber 17, a cover plate 18, a fresh air filter screen 18, a water filter screen 19, a water filter screen 20, a pipeline joint 21, an expansion valve 22, a temperature sensor 23, a support 24, a condensing fan 25, a condensing core 26 and a drying bottle.

Detailed Description

In the embodiment of fig. 1, 2 and 3, the side-mounted cooling and heating air conditioner of the crawler excavator is composed of a compressor 1, an evaporator 2, a condenser 3 and a pipeline, wherein the compressor 1 is connected to a belt pulley of an engine through a belt, the evaporator 2 is arranged on one side in a cab, and the condenser 3 is arranged outside the cab; the pipeline divide into warm braw water pipe 4, evaporate and press pipeline 5, presses cold pipeline 6 and cold pipeline 7 of evaporating, evaporates and presses pipeline 5 to connect between the suction end of evaporimeter 2 and compressor 1, presses cold pipeline 6 to connect between the output of compressor 1 and condenser 3, and cold pipeline 7 of evaporating is connected between condenser 3 and evaporimeter 2.

The evaporator 2 comprises a box body 8, a warm air heat exchanger 9, an evaporator core body 10 and a fan 11, the box body 8 comprises an air outlet 12, a mounting chamber 13, an air inlet 14, a fan seat 15, a fan chamber 16 and a cover plate 17, the air outlet 12 consists of two air outlets which are arranged in front of the box body 8 and are connected with an air cavity of a cab through an air pipe, the air inlet 14 is arranged at one side of the rear end of the box body and is communicated with the fan chamber 16, an active carbon fresh air filter screen 18 is also arranged outside the air inlet 14, the warm air heat exchanger 9 and the evaporator core body 10 are separated through a water filter screen 19 and are arranged in the mounting chamber 13 in front and back, the fan seat 15 is provided with an air outlet channel corresponding to the air outlet of the fan 11, the fan is arranged in the fan chamber 16 through the fan seat 15, the cover plate 17 is connected to the upper side of the box body 8 and is provided with a pipeline joint, Between the input end and the output end, the steam pressure pipeline 5 and the cold steam pipeline 7 are connected with a pipeline joint 20 and then connected with the evaporator core body 10 through an expansion valve 21, and a temperature sensor 22 is also arranged below the box body 8.

The condenser 3 comprises a bracket 23, a condensing fan 24, a condensing core 25 and a drying bottle 26, wherein the bracket is 23 metal frame structure and is connected with the outer wall of the cab, the condensing fan 24 is installed at the back of the bracket 23, the condensing core 25 is installed at the front of the bracket 23, the drying bottle 26 is installed at one side of the back of the bracket 23 through a connecting piece, and the drying bottle 26 is connected between the evaporator 2 and the condensing core 25 through a cold evaporation pipeline 7.

Example 1: the cooling and heating air conditioner is suitable for a small crawler excavator with 5-8 tonnages and a cab volume of 3 cubic meters. The compressor 1 is installed at a proper position in the engine, the evaporator 2 is installed at one side of the inside of the cab and the condenser 3 is installed outside the cab, and the compressor is debugged after connecting the pipes.

Example 2: and a water valve communicated with a warm air water pipe 4 of the engine water tank is opened, hot water in the engine water tank is conveyed to a warm air heat exchanger 9 through the warm air water pipe 4 and heats air in the installation chamber 13, the fan 11 blows air from the back of the warm air heat exchanger 9, hot air in the installation chamber 13 is pushed out from the back to an air outlet 12 and conveyed to the cab through an air pipe, and the cab is heated. The water heated by the warm air heat exchanger 9 is sent back to the engine water tank through the warm air water pipe 4, and the hot water is circulated continuously.

Example 3: the compressor 1 is driven by an engine belt to rotate and suck Freon gas at a low-pressure end, and the Freon gas is compressed into high-temperature high-pressure gaseous Freon by the compressor 1 and then is discharged into the condenser 3 through the pressure cooling pipeline 6. The high temperature and high pressure gaseous Freon flows in the condenser 3 and absorbs the outside cold air, after the Freon is condensed into the medium temperature and high pressure liquid Freon by the condenser 3, the liquid Freon is sent to the expansion valve 21 by the drying bottle 26 for throttling, enters the evaporator 2 for expansion and flows in the pipeline of the evaporator core 10. The air in the cab is forced to circulate by the fan 11 and absorbs heat, Florion is changed into low-pressure gas in the evaporator 2 and enters the low-pressure end of the compressor 1 through the autoclaved pipeline 5, and the low-pressure gas enters the next circulation after being sucked by the compressor 1. Repeating the above steps, the evaporator 2 continuously absorbs the heat of the cab, and the refrigeration effect is achieved.

Claims

1. A side-mounted cooling and heating air conditioner of a crawler excavator comprises a compressor, an evaporator, a condenser and a pipeline, and is characterized in that: the compressor is connected with a belt pulley of the engine through a belt, the evaporator is arranged on one side in the cab, and the condenser is arranged outside the cab; the pipeline is divided into a warm air water pipe, an autoclaved pipeline, a pressure cooling pipeline and a cold evaporation pipeline, the autoclaved pipeline is connected between the evaporator and the suction end of the compressor, the pressure cooling pipeline is connected between the output end of the compressor and the condenser, and the cold evaporation pipeline is connected between the condenser and the evaporator; the evaporator comprises a box body, a warm air heat exchanger, an evaporator core body and a fan, wherein the box body comprises an air outlet, an installation chamber, an air inlet, a fan base, a fan chamber and a cover plate, the air outlet consists of two air outlets which are arranged in front of the box body and are simultaneously connected with an air cavity of a cab through an air pipe, the air inlet is arranged at one side of the rear end of the box body and is communicated with the fan chamber, a fresh air filter screen is also arranged outside the air inlet, the warm air heat exchanger and the evaporator core body are isolated by the water filter screen and are arranged in the installation chamber in a front-back mode, the fan base is provided with an air outlet channel corresponding to the air outlet of the fan and is arranged in the fan chamber through the fan base, the cover plate is connected to the upper side of the box body and is provided with a pipeline joint, a warm air water pipe consists of two air pipes which are respectively connected, a temperature sensor is also arranged below the box body.

2. A side cooling and heating air conditioner for a crawler excavator according to claim 1, wherein: the condenser comprises a support, a condensation fan, a condensation core body and a drying bottle, the support is of a metal frame structure and is connected to the outer wall of the cab, the condensation fan is installed behind the support, the condensation core body is installed in front of the support, the drying bottle is installed on one side of the rear of the support through a connecting piece, and the drying bottle is connected with the condensation core body through a CF pipe.