Tractor expansion space arrangement structure and tractor

Abstract

The utility model relates to the field of big horsepower tractor, more particularly to a kind of tractor expansion space arrangement structure and tractor, it includes: main use expansion water tank and standby expansion water tank, respectively set in the different height of tractor and main use expansion water tank higher than standby expansion water tank;Overflow pipe, overflow port is set in the top of main use expansion water tank, one end of overflow pipe is connected with main use expansion water tank, and the other end is communicated with standby expansion water tank;Wherein, water inlet is set on main use expansion water tank, water inlet is connected with engine water tank by water pipe, for receiving the cooling liquid overflow when engine water tank expansion.It can effectively solve the contradiction between the expansion space demand of big horsepower tractor and the limited space of whole machine, improve the heat dissipation reliability of engine, optimize space layout, reserve more space for other components arrangement of tractor, improve the overall performance and reliability of tractor.

Description

Technical Field

[0001] This utility model relates to the field of high-horsepower tractors, and more specifically, to a tractor expansion space arrangement structure and a tractor. Background Technology

[0002] With the rapid development of agricultural mechanization, high-horsepower tractors are increasingly widely used in agricultural production. Modern high-horsepower tractors generally have power outputs exceeding 400 horsepower, leading to increased heat generation in their power systems and placing higher demands on their cooling systems. The expansion tank, a key component of the cooling system, is primarily used to accommodate the volume expansion of the coolant due to temperature changes, ensuring the normal operation of the cooling system.

[0003] In traditional designs, high-horsepower tractors typically use a single large expansion tank to meet cooling requirements. While this design is simple and reliable, as tractor power continues to increase, the required expansion space also grows larger, resulting in an excessively large expansion tank. An oversized expansion tank not only occupies a significant amount of overall machine space but also affects the placement of other important components, posing challenges to the overall machine design. Furthermore, placing a large expansion tank within the confined engine compartment also impacts cooling efficiency and maintenance convenience.

[0004] In existing technologies, the design of cooling systems for high-horsepower tractors faces two main contradictions: on the one hand, a sufficiently large expansion tank is needed to meet the cooling requirements of the high-power engine; on the other hand, the limited overall machine space must be considered. This contradiction is particularly pronounced in high-horsepower tractors (400 horsepower and above), as their cooling demands increase exponentially, while the available space for the machine layout cannot be increased accordingly. Therefore, optimizing the design of the expansion tank within a limited space to ensure both cooling performance and overall machine layout rationality has become a pressing technical challenge in the design of high-horsepower tractors. Utility Model Content

[0005] The purpose of this utility model is to provide a tractor expansion space arrangement structure, which can effectively solve the contradiction between the expansion space requirements of high-horsepower tractors and the limited space of the whole machine, improve the reliability of engine heat dissipation, optimize the spatial layout, reserve more space for the arrangement of other tractor components, and improve the overall performance and reliability of the tractor.

[0006] Another objective of this utility model is to provide a tractor that can effectively solve the contradiction between the expansion space requirements of high-horsepower tractors and the limited overall space, improve the reliability of engine heat dissipation, optimize the spatial layout, reserve more space for the arrangement of other tractor components, and improve the overall performance and reliability of the tractor.

[0007] The technical solution of this utility model is implemented as follows:

[0008] A tractor expansion space arrangement structure, comprising:

[0009] The main expansion tank and the backup expansion tank are respectively installed at different heights of the tractor, with the main expansion tank being higher than the backup expansion tank.

[0010] An overflow pipe is provided at the top of the main expansion tank, with one end of the overflow pipe connected to the main expansion tank and the other end connected to the backup expansion tank.

[0011] The main expansion tank is equipped with a water inlet, which is connected to the engine water tank via a water pipe to receive the coolant overflowing when the engine water tank expands.

[0012] Furthermore, the top of the main expansion tank is provided with a first water inlet pipe, the top port of the first water inlet pipe is a first water inlet, and a double water inlet cover is provided for the first water inlet.

[0013] Furthermore, the overflow port is provided on the side of the first water supply pipe.

[0014] Furthermore, a second water inlet pipe is provided on the top of the spare expansion tank, and the top port of the second water inlet pipe is a second water inlet, and a double water inlet cover is provided for the second water inlet.

[0015] Furthermore, an exhaust port is provided on the side of the second water inlet pipe, and an exhaust pipe is provided at the exhaust port.

[0016] Furthermore, at least one spare vent is provided on the upper part of the main expansion tank, and a switch valve is installed on the spare vent.

[0017] Furthermore, the volume of the primary expansion tank is larger than the volume of the backup expansion tank.

[0018] Furthermore, the tractor expansion space arrangement structure is suitable for high-horsepower tractors.

[0019] A tractor comprising the aforementioned tractor expansion space arrangement structure.

[0020] Furthermore, the tractor is a high-horsepower tractor, and the power of the tractor is not less than 400 horsepower.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] This application proposes a novel expansion space structural design—a dual expansion tank distributed layout. This involves dividing a traditional large expansion tank into two smaller tanks: a primary expansion tank and a backup expansion tank. These two tanks are installed at different heights on the tractor and connected by an overflow pipe, sharing the space required for engine coolant expansion. Compared to the excessive space occupied by the traditional large expansion tank, the two smaller tanks in this application each occupy less space and offer greater flexibility in their placement. They can be installed in any space within the tractor, as long as they meet different height requirements. This effectively resolves the contradiction between the expansion space requirements of high-horsepower tractors and the limited overall machine space. The dual expansion tanks distribute the expansion pressure, ensuring stable coolant circulation and improving engine cooling reliability. The optimized spatial layout also allows for more space for other tractor components, contributing to a more compact overall design and enhancing the tractor's overall performance and reliability. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the expansion space arrangement structure of the tractor according to this utility model.

[0025] In the picture:

[0026] 1-Main expansion tank; 101-First water inlet pipe; 102-Spare vent;

[0027] 2-Double water inlet cover;

[0028] 3-Overflow pipe; 4-Exhaust pipe;

[0029] 5-Spare expansion tank; 501-Second water supply pipe. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0034] Furthermore, terms such as "horizontal," "vertical," and "sag" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal relative to "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0035] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0036] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0037] Example 1

[0038] Reference Figure 1 This embodiment provides a tractor expansion space arrangement structure, which includes:

[0039] The main expansion tank 1 and the backup expansion tank 5 are respectively installed at different heights of the tractor, and the main expansion tank 1 is higher than the backup expansion tank 5.

[0040] Overflow pipe 3, with an overflow port provided at the top of the main expansion tank 1, one end of the overflow pipe 3 is connected to the main expansion tank 1 and the other end is connected to the spare expansion tank 5;

[0041] The main expansion tank 1 is equipped with a water inlet, which is connected to the engine water tank via a water pipe to receive the coolant overflowing when the engine water tank expands.

[0042] To make it easier to understand, the engine water tank and expansion tank are explained below:

[0043] The engine water tank on a tractor is one of the core components of the tractor's cooling system. Its main function is to absorb and dissipate the heat generated by the engine during operation by circulating coolant (usually water or antifreeze), preventing the engine from overheating and thus ensuring the engine works normally and stably.

[0044] The engine water tank (English: Radiator), also known as a radiator, is a key heat exchange device in the cooling system of an internal combustion engine (such as a diesel engine used in a tractor). It usually consists of a heat dissipation core (composed of multiple rows of flat tubes and heat dissipation fins), a water chamber (inlet and outlet), and a supporting structure.

[0045] How does an engine water tank work?

[0046] 1. Heat absorption:

[0047] When the engine is running, the combustion chamber and cylinders generate a lot of heat.

[0048] Driven by a water pump, the coolant flows through the cooling channels of the engine block and cylinder head to absorb the heat generated by the engine.

[0049] 2. Heat dissipation:

[0050] Hot coolant flows through the heat dissipation core of the water tank and transfers heat to the air through the heat sink fins.

[0051] When the tractor is moving, air flows through the water tank; when stationary or at low speed, the fan forces airflow to accelerate heat dissipation.

[0052] 3. Circulation and recirculation:

[0053] The cooled liquid flows back into the engine after being cooled down, forming a circulation system.

[0054] 4. Temperature control:

[0055] The temperature control system controls whether coolant flows through the water tank via a thermostat to maintain the engine within its optimal operating temperature range (usually 80-95°C).

[0056] The expansion tank (also known as the compensating tank or auxiliary tank) on a tractor is an important component of the tractor engine cooling system. It is mainly used to accommodate the expansion and contraction of the coolant due to temperature changes, maintain the pressure stability of the cooling system, and prevent the coolant from boiling, leaking, or air from entering the system, thereby ensuring the engine operates stably under various operating conditions.

[0057] An expansion tank is an open or closed liquid storage container, usually installed at a high point in the tractor's cooling system, connected to the main water tank or engine cooling system. Its functions include: absorbing the volume increase of the coolant when heated; returning the coolant to the main circulation system when it cools and contracts; and venting air from the cooling system.

[0058] Working principle of expansion tank:

[0059] 1. Thermal expansion:

[0060] When the engine is running, the coolant heats up and its volume increases;

[0061] Coolant flows into the expansion tank through water pipes to prevent excessive pressure in the system.

[0062] 2. Cooling and shrinkage:

[0063] When the engine is stopped or cooling, the coolant contracts as it cools down.

[0064] The coolant in the expansion tank returns to the main cooling system through the return pipe to avoid creating negative pressure.

[0065] 3. Pressure regulation:

[0066] Expansion tanks typically have a pressure cap or one-way valve structure, which allows coolant to flow in as it expands, preventing coolant backflow or air from entering.

[0067] 4. Exhaust function:

[0068] The expansion tank helps expel air from the system, preventing air resistance from affecting heat dissipation efficiency.

[0069] The following section returns to the specifics of this plan:

[0070] The main expansion tank 1 is provided with a first water inlet pipe 101 at the top. The top end of the first water inlet pipe 101 is the first water inlet, which is the water inlet of the main expansion tank 1. A double water inlet cover 2 is provided for the first water inlet. An overflow port is provided on the side of the first water inlet pipe 101.

[0071] The top of the standby expansion tank 5 is provided with a second water inlet pipe 501. The top port of the second water inlet pipe 501 is the second water inlet, which is the water inlet of the standby expansion tank 5. The second water inlet is also provided with a duplex water inlet cover 2.

[0072] The second water supply pipe 501 has an exhaust port on its side, and the exhaust port is equipped with an exhaust pipe 4.

[0073] At least one spare vent 102 is provided on the upper part of the main expansion tank 1. The spare vent 102 is equipped with a switch valve, which controls the opening and closing of the spare vent 102. The spare vent 102 is generally not opened for use, but it can be opened for use in special or emergency situations to play the role of emergency venting.

[0074] The volume of the main expansion tank 1 is larger than that of the spare expansion tank 5. The expansion space arrangement structure of the tractor is suitable for high-horsepower tractors, especially high-horsepower tractors with no less than 400 horsepower.

[0075] The working principle of the dual expansion tank system is as follows:

[0076] When the engine is running and the coolant expands due to heat, the excess engine coolant flows into the first main expansion tank 1 through the water pipe.

[0077] If the expansion is too large and the first water tank (main expansion tank 1) cannot hold it, the coolant will flow through the overflow pipe 3 to the second water tank (standby expansion tank 5).

[0078] During this process, the exhaust pipe 4 on the spare expansion tank 5 will discharge the gas generated when the coolant expands, so as to prevent the gas from blocking the flow of coolant.

[0079] Both the main expansion tank 1 and the backup expansion tank 5 use a double-layer water inlet cover 2 to achieve water replenishment and sealing functions, ensuring that the cooling system always operates normally.

[0080] Note: In practical applications, the volume matching design of dual expansion tanks requires precise calculation of the coolant expansion caused by engine cooling, and then reasonable allocation of the space between the two tanks to ensure that the expansion space can be effectively supported under different operating conditions, thus ensuring the stability of the cooling system.

[0081] Due to the high heat dissipation requirements of high-horsepower tractor engines, the space constraints of a single expansion tank are significant. This solution's dual expansion tank design addresses these issues. From a spatial perspective, it distributes expansion pressure, adapting to limited overall machine space and solving layout challenges. From a cooling performance perspective, the coolant circulates systematically in both tanks, ensuring smooth exhaust, reducing air resistance, guaranteeing stable heat dissipation, and extending component lifespan. From a design innovation perspective, it breaks through the traditional single-tank mindset, achieving a win-win situation of space utilization and performance assurance through rational component combination and principle application. Compared to traditional solutions, it significantly optimizes the cooling system of high-horsepower tractors, improving overall machine reliability and practicality.

[0082] Innovative Space Utilization: Breaking away from the traditional single expansion tank design, a dual expansion tank layout is adopted, which cleverly adapts to the limited space of a high-horsepower tractor, resolving the contradiction between high heat dissipation requirements and limited space, and providing a new approach to space optimization for cooling systems of similar high-power equipment.

[0083] Example 2

[0084] A tractor, including the aforementioned tractor expansion space arrangement structure.

[0085] The tractor is a high-horsepower tractor, and the power of the tractor is not less than 400 horsepower.

[0086] 1. Space saving: The traditional single expansion tank, which occupies a large volume, is designed into two small tanks (main expansion tank 1 and spare expansion tank 5), which can be arranged more flexibly on the tractor and solve the problem of tight space in the whole machine;

[0087] 2. Improved cooling stability: The dual expansion tank design can better meet the cooling needs under different operating conditions and prevent coolant overflow or excessive system pressure;

[0088] 3. Reduced air resistance: The exhaust system is designed more rationally, reducing the obstruction of gas flow to the coolant and improving heat dissipation efficiency;

[0089] 4. Extended service life: A more stable cooling system operation helps extend the service life of the coolant and related components;

[0090] 5. Structural optimization: Freeing up more space for other tractor components makes the overall structure more compact and rational.

[0091] The beneficial effects of the technical solution of this utility model are:

[0092] This application proposes a novel expansion space structural design—a dual expansion tank distributed layout. This involves dividing a traditional large expansion tank into two smaller tanks: a main expansion tank (1) and a backup expansion tank (5), installed at different heights on the tractor. These two tanks are connected by an overflow pipe (3) and share the space required for engine coolant expansion. Compared to the excessive space occupied by the traditional large expansion tank, the two smaller tanks in this application each occupy less space and offer flexible placement, adaptable to different heights and installable in any location within the tractor. This effectively resolves the conflict between the expansion space requirements of high-horsepower tractors and limited overall space. The dual expansion tanks distribute expansion pressure, ensuring stable coolant circulation and improving engine cooling reliability. The optimized spatial layout allows for more space for other tractor components, contributing to a more compact overall design and enhancing the tractor's overall performance and reliability. The exhaust system ensures smooth gas discharge, reducing air resistance and extending the lifespan of the coolant and related components, further improving the tractor's overall performance and reliability.

[0093] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

[0094] The above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A tractor expansion space arrangement structure, characterized in that, include: The main expansion tank (1) and the backup expansion tank (5) are respectively installed at different heights of the tractor, and the main expansion tank (1) is higher than the backup expansion tank (5). Overflow pipe (3), the top of the main expansion tank (1) is provided with an overflow port, one end of the overflow pipe (3) is connected to the main expansion tank (1) and the other end is connected to the spare expansion tank (5); The main expansion tank (1) is provided with a water inlet, which is connected to the engine water tank through a water pipe to receive the coolant overflowing when the engine water tank expands.

2. The tractor expansion space arrangement structure according to claim 1, characterized in that, The main expansion tank (1) is provided with a first water inlet pipe (101) at the top. The top port of the first water inlet pipe (101) is the first water inlet, and the first water inlet is provided with a duplex water inlet cover (2).

3. The tractor expansion space arrangement structure according to claim 2, characterized in that, The overflow port is provided on the side of the first water supply pipe (101).

4. The tractor expansion space arrangement structure according to claim 1, characterized in that, The top of the spare expansion tank (5) is provided with a second water inlet pipe (501), the top port of the second water inlet pipe (501) is a second water inlet, and the second water inlet is provided with a duplex water inlet cover (2).

5. The tractor expansion space arrangement structure according to claim 4, characterized in that, The second water inlet pipe (501) is provided with an exhaust port on its side, and the exhaust port is provided with an exhaust pipe (4).

6. The tractor expansion space arrangement structure according to claim 1, characterized in that, At least one spare vent (102) is provided on the upper part of the main expansion tank (1), and a switch valve is installed on the spare vent (102).

7. The tractor expansion space arrangement structure according to claim 1, characterized in that, The volume of the main expansion tank (1) is greater than the volume of the backup expansion tank (5).

8. The tractor expansion space arrangement structure according to claim 1, characterized in that, The tractor expansion space arrangement structure is suitable for high-horsepower tractors.

9. A tractor, characterized in that, The tractor expansion space arrangement structure includes any one of claims 1-8.

10. The tractor according to claim 9, characterized in that, The tractor is a high-horsepower tractor, and the power of the tractor is not less than 400 horsepower.

Images