Tractor cab air duct arrangement structure, cab and tractor

Abstract

The utility model relates to the field of tractors, in particular to a tractor cab air duct arrangement structure which comprises a cab framework, an evaporator installed on the upper side of the cab framework, a top air duct installed on the upper side of the cab framework, the rear end of the top air duct is connected with the evaporator, and an air outlet supplying air towards the interior of a cab is formed in the lower side of the top air duct. The front side of the cab framework is provided with two stand column air ducts which are spaced left and right, the front ends of the two top air ducts are communicated with the two stand column air ducts respectively, the middle portions of the two top air ducts are bent towards the two sides respectively, and the air outlets comprise first air outlet holes located in the rear portions of the top air ducts. And the second air outlet hole is formed in the bent part of the top air duct. The cab comprises the tractor cab air duct arrangement structure. The tractor comprises the cab. By optimizing the air supply path, the space utilization rate, the air supply efficiency and the reliability are improved, and the complex working condition requirements of agricultural machinery are met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of tractor, concretely relates to a tractor cab air duct arrangement structure, cab and tractor. BACKGROUND

[0002] In the field of agricultural machinery, the tractor is a commonly used work equipment, and the comfort of the cab directly affects the work efficiency and fatigue degree of the driver. Among them, the air supply performance of the air conditioning system is one of the key factors to determine the comfort of the cab environment. Due to the limitation of the air duct arrangement of the traditional tractor cab, the airflow distribution is uneven, and the air supply blind area or direct blowing phenomenon is easy to appear, which leads to the obvious temperature difference in the front, back, left and right areas of the cab, and it is difficult to meet the comfort demand of long-time operation. In addition, due to the long path or unreasonable layout of the existing air duct structure, the cold air conveying energy loss is large, and under the vibration environment, looseness, abnormal sound and other problems are easy to occur, which affects the reliability of the equipment, and needs to be improved. SUMMARY

[0003] The utility model aims at above -mentioned problem provides a tractor cab air duct arrangement structure, cab and tractor that airflow distribution is even, cold air conveying energy loss is small.

[0004] In order to achieve the above-mentioned purpose, the utility model discloses a tractor cab air duct arrangement structure, including cab skeleton, the evaporator is installed on the upside of cab skeleton, and its structural characteristics are: the top air duct is installed on the upside of cab skeleton, the rear end of top air duct is connected with the evaporator, the lower side of top air duct is equipped with the air outlet for supplying air to the inside of cab, and the front side of cab skeleton is installed with the column air duct, and the column air duct is equipped with two and is spaced left and right, and the top air duct is equipped with two, and the front end of two top air ducts is communicated with two column air ducts respectively.

[0005] The arrangement structure of double top air ducts and double column air ducts can cover the front, back, left and right areas of the cab, make the airflow distribution balanced, the rear end of top air duct is directly connected with the evaporator, the front end is connected with the column air duct, shortens the cold air conveying path, and reduces the energy loss.

[0006] The middle parts of two top air ducts are respectively bent to two sides, the airflow direction is optimized through the bent top air duct, the directional air outlet area is formed, the side air supply capacity is enhanced, and the space utilization is improved.

[0007] The air outlet includes the first air outlet hole and the second air outlet hole, the first air outlet hole is located at the rear part of top air duct, and the second air outlet hole is located at the bent part of top air duct. It can realize multi-region differentiated air supply, improve the air supply accuracy, adapt to different working condition requirements, and reduce the discomfort of direct blowing.

[0008] The upper part of the cab skeleton is provided with a support beam, and the evaporator is installed between the cab skeleton and the support beam. The cab skeleton and the support beam are double-fixed, the risk of equipment loosening caused by vibration is reduced, the installation stability of the evaporator is strengthened, the evaporator is convenient to maintain and disassemble, and the assembly process is improved.

[0009] The rear part of the top air duct is provided with a first connecting plate, the front part of the top air duct is provided with a third connecting plate, the first connecting plate is provided with a bolt penetrating through the first connecting plate and being screwed on the support beam, and the third connecting plate is provided with a bolt penetrating through the third connecting plate and being screwed on the cab skeleton. The front and rear ends of the top air duct are rigidly connected, the bolt connection mode is resistant to vibration, and displacement of the air duct after long-term use is prevented.

[0010] The bending part of the top air duct is provided with a second connecting plate, and the second connecting plate is provided with a bolt penetrating through the second connecting plate and being screwed on the cab skeleton. The second connecting plate is directly fixed to the cab skeleton, the structural strength of the bending section is reinforced, the overall rigidity is improved, and the risk of abnormal sound is reduced.

[0011] The front side of the cab skeleton is provided with two columns, the two columns are spaced apart left and right, and the two column air ducts are installed on the two columns. The air duct is installed by using the existing column, and the internal space of the cab is saved.

[0012] The third air outlet is provided on the column air duct, and the third air outlet is provided with a plurality of air outlets and is spaced apart upward and downward. Uniform air supply in the vertical direction is provided. The three-dimensional circulation is formed by cooperating with the top air duct, and the temperature regulation of the cab is accelerated.

[0013] A cab comprises the tractor cab air duct arrangement. The cab has the advantages of the tractor cab air duct arrangement, optimizes the air supply path of the air conditioner airflow, and improves the driving environment.

[0014] A tractor comprises the cab. The tractor has the advantages of the cab, improves the comfort of the driver, and indirectly improves the operation efficiency of the tractor.

[0015] In summary, the beneficial effects of the present application are as follows: the arrangement structure of the double top air duct and the double column air duct can cover the front, rear, left and right areas of the cab, the airflow distribution is balanced, the rear end of the top air duct is directly connected with the evaporator, the front end is connected with the column air duct, the cold air conveying path is shortened, and the energy loss is reduced. Through the three-dimensional air duct layout, the partition air supply, the structure reinforcement and other innovations, the space utilization, the air supply efficiency and the reliability are comprehensively improved, and the complex working condition requirements of agricultural machinery are met. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 The arrangement structure of the top air duct and the column air duct is shown in the figure;

[0017] Figure 2 The structure of the cab skeleton is shown in the figure;

[0018] Figure 3 Structure diagram of the top air duct;

[0019] Figure 4 Structure diagram of the arrangement of the first air outlet and the second air outlet;

[0020] Figure 5 Structure diagram of the connection of the top air duct and the column air duct.

[0021] In the figure: top air duct 1, evaporator 2, cab skeleton 3, first air outlet 4, second air outlet 5, column air duct 6, first connecting plate 7, second connecting plate 8, third connecting plate 9, column 10, support beam 11, third air outlet 12. DETAILED DESCRIPTION

[0022] The specific embodiments of the present application will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate the present application, but not to limit the scope of the present application.

[0023] In the description of the present application, it should be understood that the terms "center", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application.

[0024] The terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, unless otherwise specified, the meaning of "a plurality of" is two or more.

[0025] In the description of the present application, it should be noted that, unless otherwise specified and limited, the terms "mounting", "connecting", "connecting" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0026] The following is a description of the preferred embodiments of the present application in conjunction with the accompanying drawings.

[0027] The utility model provides a tractor cab air duct arrangement structure, including cab skeleton 3, evaporimeter 2 is installed on the upside of cab skeleton 3, its structural characteristics are: evaporimeter 2 is connected with the rear end of top air duct 1, and the lower side of top air duct 1 is equipped with the air outlet for supplying air to the inside of cab, and the front side of cab skeleton 3 is equipped with column air duct 6, and the column air duct 6 is equipped with two and is spaced left and right, and top air duct 1 is equipped with two, and the front end of two top air ducts 1 is communicated with two column air ducts 6 respectively. Figure 1 The arrangement structure of double top air ducts 1 and double column air ducts 6 can cover the front, rear, left and right areas of the cab, make the airflow distribution balanced, the rear end of top air duct 1 is directly connected with evaporimeter 2, the front end is connected with column air duct 6, shortens the cold air conveying path, and reduces energy loss.

[0028] Refer to the attached Figure 1 , the attached Figure 2 , the middle part of two top air ducts 1 is respectively bent to two sides, the airflow direction is optimized by bending top air duct 1, directional air outlet area is formed, side air supply capacity is enhanced, and space utilization is improved. The air outlet includes first air outlet hole 4 and second air outlet hole 5, the first air outlet hole 4 is located at the rear part of top air duct 1, and the second air outlet hole 5 is located at the bending part of top air duct 1. It can realize multi-area differential air supply, improve the air supply accuracy, adapt to different working conditions, and reduce the discomfort of direct blowing. The upper part of cab skeleton 3 is installed with support beam 11, and evaporimeter 2 is installed between cab skeleton 3 and support beam 11. Cab skeleton 3 and support beam 11 are double-fixed, reduce the risk of equipment loosening caused by vibration, strengthen the installation stability of evaporimeter 2, facilitate the maintenance and disassembly of evaporimeter 2, and improve the assembly process.

[0029] Refer to the attached Figure 1 , the attached Figure 3 , the rear part of top air duct 1 is equipped with first connecting plate 7, the front part of top air duct 1 is equipped with third connecting plate 9, the bolt passing through first connecting plate 7 and being screwed on support beam 11 is installed on first connecting plate 7, and the bolt passing through third connecting plate 9 and being screwed on cab skeleton 3 is installed on third connecting plate 9. Ensure that the two ends of top air duct 1 are rigidly connected, the bolt connection mode is resistant to vibration, and the air duct displacement after long-term use is prevented. The bending part of top air duct 1 is equipped with second connecting plate 8, and the bolt passing through second connecting plate 8 and being screwed on cab skeleton 3 is installed on second connecting plate 8. Directly fixed to cab skeleton 3, reinforce the structural strength of the bending segment, improve the overall rigidity, and reduce the risk of abnormal sound.

[0030] Refer to the attached Figure 1 , the attached Figure 2The front side of the cab skeleton 3 is provided with two vertical columns 10, the two vertical columns 10 are spaced apart left and right, and the two vertical column air ducts 6 are respectively installed on the two vertical columns 10. The air duct is installed by using the existing vertical column 10, and the internal space of the cab is saved. The third air outlet hole 12 is arranged on the vertical column air duct 6, the third air outlet hole 12 is provided with a plurality of and is spaced apart up and down. Uniform air supply in the vertical direction is provided. The three-dimensional circulation is formed by cooperating with the top air duct 1, and the temperature regulation of the cab is accelerated.

[0031] A cab comprises the tractor cab air duct arrangement described above. The cab has the advantages of the tractor cab air duct arrangement described above, optimizes the air supply path of the air conditioning airflow, and improves the driving environment.

[0032] A tractor comprises the cab described above. The cab has the advantages of the cab described above, improves the comfort of the driver, and indirectly improves the operation efficiency of the tractor.

[0033] The above is only the preferred embodiment of the present application, it should be pointed out that, for those skilled in the art, without departing from the technical principles of the present application, a number of improvements and substitutions can be made, these improvements and substitutions should also be considered as the protection scope of the present application.

Claims

1. A tractor cab air duct arrangement structure, comprising a cab frame (3), wherein an evaporator (2) is mounted on the upper side of the cab frame (3), characterized in that, The cab frame (3) is equipped with a top air duct (1) on the upper side. The rear end of the top air duct (1) is connected to the evaporator (2). The bottom side of the top air duct (1) is provided with an air outlet that supplies air to the interior of the cab. The front side of the cab frame (3) is equipped with a column air duct (6). There are two column air ducts (6) spaced apart on the left and right. There are two top air ducts (1). The front ends of the two top air ducts (1) are respectively connected to the two column air ducts (6).

2. The tractor cab air duct arrangement structure as described in claim 1, characterized in that, The middle parts of the two top wind tunnels (1) bend to the sides respectively.

3. The tractor cab air duct arrangement structure as described in claim 2, characterized in that, The air outlet includes a first air outlet (4) and a second air outlet (5). The first air outlet (4) is located at the rear of the top air duct (1), and the second air outlet (5) is located at the bend of the top air duct (1).

4. The tractor cab air duct arrangement structure as described in claim 2, characterized in that, A support beam (11) is installed on the upper part of the cab frame (3), and the evaporator (2) is installed between the cab frame (3) and the support beam (11).

5. The tractor cab air duct arrangement structure as described in claim 4, characterized in that, The rear of the top air duct (1) is provided with a first connecting plate (7), and the front of the top air duct (1) is provided with a third connecting plate (9). The first connecting plate (7) is equipped with bolts that pass through the first connecting plate (7) and are tightened on the support beam (11). The third connecting plate (9) is equipped with bolts that pass through the third connecting plate (9) and are tightened on the cab frame (3).

6. The tractor cab air duct arrangement structure as described in claim 4, characterized in that, The top air duct (1) is provided with a second connecting plate (8) at the bend, and bolts are installed on the second connecting plate (8) and tightened on the cab frame (3).

7. The tractor cab air duct arrangement structure as described in claim 1, characterized in that, The cab frame (3) has two columns (10) on the front side, with the two columns (10) spaced apart on the left and right, and the two column air ducts (6) are installed on the two columns (10) respectively.

8. The tractor cab air duct arrangement structure as described in claim 7, characterized in that, The column air duct (6) is provided with a third air outlet (12), and there are multiple third air outlets (12) spaced vertically.

9. A driver's cab, characterized in that, Includes the tractor cab air duct arrangement structure as described in any one of claims 1 to 8.

10. A tractor, characterized in that, Includes the driver's cab as described in claim 9.

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