Low center of gravity mountain light tracked tractor

Abstract

This application provides a low-center-of-gravity lightweight tracked tractor for mountainous terrain, relating to the field of tracked tractors. The low-center-of-gravity lightweight tracked tractor includes a support assembly, a power assembly, and a transmission assembly. A first fixed support point and a second fixed support point are both located at the first end of the frame, with both sides of the engine connected to the first and second fixed support points respectively. A third fixed support point is located at the second end of the frame, with the rear end of the gearbox assembly connected to the third fixed support point. A first adjustable support point is located in the middle of the frame, with the connection point between the engine and the clutch assembly connected to the first adjustable support point. The second and third adjustable support points are both located at the second end of the frame, with both sides of the left and right half-shaft assemblies connected to the second and third adjustable support points respectively. This low-center-of-gravity lightweight tracked tractor solves the technical problems of high cost and limited applicability of existing tracked tractors.

Description

Technical Field

[0001] This application relates to the field of tracked tractors, and more specifically, to a low-center-of-gravity, lightweight tracked tractor for mountainous terrain. Background Technology

[0002] The agricultural working environment in hilly and mountainous areas is mostly rugged and uneven, with gentle or steep slopes of varying gradients. Therefore, the requirements for the slope stability of tracked tractors are extremely high.

[0003] Currently available tracked tractors can use hydraulic or electronic control systems to adjust the base posture in real time to improve the stability of tracked tractors on slopes; however, hydraulic systems suffer from high energy consumption, complex structure, high cost, and high failure rate. Alternatively, wide tracks can be used to reduce ground pressure and improve traction, thus enhancing operational stability; however, this results in faster track wear and reduced steering flexibility. Utility Model Content

[0004] The purpose of this application is to provide a low-center-of-gravity lightweight tracked tractor for mountainous terrain, in order to alleviate the technical problems of high cost and limited applicability of existing tracked tractors.

[0005] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows:

[0006] The low center of gravity mountain lightweight tracked tractor provided by this utility model includes a support assembly, a power assembly, and a transmission assembly;

[0007] The powertrain includes an engine, and the transmission assembly includes a clutch assembly, a gearbox assembly, and left and right half-shaft assemblies. The clutch assembly is connected to the engine and the gearbox assembly, and the gearbox assembly is connected to the left and right half-shaft assemblies.

[0008] The support assembly includes a frame, the frame having a first fixed support point, a second fixed support point, a third fixed support point, a first adjustable support point, a second adjustable support point, and a third adjustable support point;

[0009] The first fixed support point and the second fixed support point are both located at the first end of the frame and are spaced apart. The two sides of the engine are respectively connected to the first fixed support point and the second fixed support point. The third fixed support point is located at the second end of the frame, and the middle of the rear end of the gearbox assembly is connected to the third fixed support point.

[0010] The first adjustable support point is located in the middle of the frame, and the connection point between the engine and the clutch assembly is connected to the first adjustable support point; the second adjustable support point and the third adjustable support point are both located at the second end of the frame and are spaced apart, and the two sides of the left and right half-shaft assemblies are respectively connected to the second adjustable support point and the third adjustable support point.

[0011] Furthermore, the frame is filled with filler.

[0012] Furthermore, the frame includes a rectangular tube filled with the filler.

[0013] Furthermore, the frame includes a support frame, a support plate, and connecting components;

[0014] The support frame has a first fixed support point, a second fixed support point, a third fixed support point, a first adjustable support point, a second adjustable support point, and a third adjustable support point; the support plate is connected to the first end of the support frame through the connector, and the connector is inclined.

[0015] Furthermore, it also includes a front hood, which is mounted on the support plate and covers the powertrain.

[0016] Furthermore, the frame includes a first fixing member, a second fixing member, and a third fixing member. The first fixing member and the second fixing member are both installed at the first end of the support frame and are arranged opposite to each other; the third fixing member is installed at the second end of the support frame.

[0017] The first fixing member has a first fixing support point and is connected to the engine; the second fixing member has a second fixing support point and is connected to the engine.

[0018] The third fixing member is provided with the third fixing support point and is connected to the rear of the gearbox assembly.

[0019] Furthermore, the frame includes a first adjusting fastener, which is installed in the middle of the support frame;

[0020] The first adjusting fastener is provided with a plurality of adjusting holes, which are spaced apart along the direction of the support frame to form the first adjustable support point. Any one of the adjusting holes is connected to the connection point between the engine and the clutch assembly.

[0021] Furthermore, the frame includes a second adjusting fastener and a third adjusting fastener, both of which are installed at the second end of the support frame and are spaced apart along the width direction of the support frame;

[0022] The second adjusting fastener is provided with the second adjustable support point, and the third adjusting fastener is provided with the third adjustable support point, and is respectively connected to both sides of the left and right half shaft assemblies.

[0023] Furthermore, the support assembly also includes a tracked walking mechanism, which is connected to the frame and is drive-connected to the left and right half-shaft assemblies.

[0024] Furthermore, it also includes a suspension device mounted at the second end of the frame.

[0025] Based on the above technical solutions, the technical effects achievable by this utility model can be analyzed as follows:

[0026] The low-center-of-gravity lightweight tracked tractor for mountainous terrain provided by this utility model includes a support assembly, a power assembly, and a transmission assembly. The power assembly includes an engine, and the transmission assembly includes a clutch assembly, a gearbox assembly, and left and right half-shaft assemblies. The clutch assembly is connected to the engine and gearbox assembly, and the gearbox assembly is connected to the left and right half-shaft assemblies. The support assembly includes a frame, which has a first fixed support point, a second fixed support point, a third fixed support point, a first adjustable support point, a second adjustable support point, and a third adjustable support point. The first and second fixed support points are both located at the first end of the frame and are spaced apart. The two sides of the engine are connected to the first and second fixed support points, respectively. The third fixed support point is located at the second end of the frame, and the middle of the rear end of the gearbox assembly is connected to the third fixed support point. The first adjustable support point is located in the middle of the frame, and the connection point between the engine and the clutch assembly is connected to the first adjustable support point. The second and third adjustable support points are both located at the second end of the frame and are spaced apart. The two sides of the left and right half-shaft assemblies are connected to the second and third adjustable support points, respectively.

[0027] This low-center-of-gravity mountain lightweight tracked tractor organically integrates the powertrain and transmission assembly with the frame. Specifically, the powertrain and transmission assembly are connected as a whole through three fixed support points (first, second, and third fixed support points) and three adjustable support points (first, second, and third adjustable support points). The weight of the powertrain and transmission assembly itself is transferred to the frame through the above six support points. All other components on the tractor are directly connected to the frame, and their weight is supported and transferred to the frame.

[0028] The first and second fixed support points are located on the left and right sides of the tractor engine, and the third fixed support point is located at the middle of the rear end of the gearbox assembly, forming a three-point fixed support equilateral triangle. The first adjustable support point is located at the connection between the powertrain and the transmission assembly, and the second and third adjustable support points are located at the ends of the left and right half-shaft assemblies, forming an adjustable support inverted triangle. The support strength is improved by relying on the above-mentioned equilateral triangle support and inverted triangle support. The remaining parts of the tractor are directly connected to the frame, and their weight and force are directly transmitted to the frame, reducing the external load on the transmission assembly. This allows for lightweight design and manufacturing of the transmission assembly, effectively reducing the weight of the powertrain and transmission assembly themselves.

[0029] The powertrain and transmission assembly are directly mounted on the frame using a six-point support system. This ensures stable installation, lowers the tractor's center of gravity, improves its resistance to rollover and slippage, and ensures stable operation on steep slopes, thereby expanding the tractor's applicability. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments of this application will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0031] Figure 1 A structural schematic diagram of the low center of gravity mountain lightweight tracked tractor provided in the embodiments of this application from a first-view perspective;

[0032] Figure 2 A structural schematic diagram of the low center of gravity mountain lightweight tracked tractor provided in the embodiments of this application from a second perspective;

[0033] Figure 3 A structural schematic diagram of a low-center-of-gravity mountain lightweight tracked tractor provided in an embodiment of this application from a third-person perspective;

[0034] Figure 4 A schematic diagram of the chassis of a low-center-of-gravity mountain lightweight tracked tractor provided in an embodiment of this application from a first-view perspective;

[0035] Figure 5 A schematic diagram of the chassis of a low-center-of-gravity mountain lightweight tracked tractor provided in an embodiment of this application from a second-view perspective;

[0036] Figure 6 A schematic diagram of the chassis of a low-center-of-gravity mountain lightweight tracked tractor provided in an embodiment of this application from a third-person perspective;

[0037] Figure 7 A schematic diagram of the support points in a low-center-of-gravity mountain lightweight tracked tractor provided in an embodiment of this application. Figure 1 ;

[0038] Figure 8 A schematic diagram of the support points in a low-center-of-gravity mountain lightweight tracked tractor provided in an embodiment of this application. Figure 2 ;

[0039] Figure 9 A schematic diagram of the support points in a low-center-of-gravity mountain lightweight tracked tractor provided in an embodiment of this application. Figure 3 ;

[0040] Figure 10 A schematic diagram of the support points in a low-center-of-gravity mountain lightweight tracked tractor provided in an embodiment of this application. Figure 4 ;

[0041] Figure 11 A schematic diagram of the powertrain and transmission assembly in a low-center-of-gravity mountain lightweight tracked tractor provided in an embodiment of this application, viewed from a first perspective;

[0042] Figure 12 A schematic diagram of the powertrain and transmission system in a low-center-of-gravity mountain lightweight tracked tractor provided in an embodiment of this application, viewed from a second perspective;

[0043] Figure 13 A schematic diagram of the support assembly in a low-center-of-gravity mountain lightweight tracked tractor provided in an embodiment of this application, viewed from a first perspective;

[0044] Figure 14 This is a structural schematic diagram of the support assembly in a low-center-of-gravity mountain lightweight tracked tractor provided in an embodiment of this application, viewed from a second perspective.

[0045] icon:

[0046] 1-Hydraulic fuel tank and left mudguard; 2-Suspension device; 3-Hydraulic oil tank and right mudguard; 4-Powertrain; 5-Support assembly; 51-Frame; 52-Crawler-type walking mechanism; 6-Seat; 7-Safety frame; 8-Steering gear and steering wheel; 9-Front engine hood; 10-Transmission assembly;

[0047] A - First fixed support point; B - Second fixed support point; C - Third fixed support point; a - First adjustable support point; b - Second adjustable support point; c - Third adjustable support point. Detailed Implementation

[0048] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0049] In the description of this application, it should be noted that the terms "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 is in use. They are used only for the convenience of describing this application and for 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 application. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0050] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "setup" and "connection" 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 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 application based on the specific circumstances.

[0051] my country's hilly and mountainous areas possess vast arable land, accounting for approximately 30% of the country's total cultivated and sown area. However, these fields are small, irregular, and steeply sloped, with 467 million mu (approximately 31.8 million hectares) of land at a gradient of 2-6 degrees, 362 million mu (approximately 2.1 million hectares) at 6-15 degrees, 166 million mu (approximately 1.1 million hectares) at 15-25 degrees, and 74 million mu (approximately 4.6 million hectares) at slopes exceeding 25 degrees. Due to these natural limitations, the overall mechanization rate is only 41.57%, lagging behind the national average by 32.72 percentage points. To address this issue and increase the mechanization rate in hilly and mountainous areas, it is essential to develop power machinery suitable for these terrains and slopes ranging from 0 to 25 degrees. Furthermore, over 50% of China's rural population resides in these areas, which are relatively economically underdeveloped with low farmer incomes. Excessively expensive power machinery is unaffordable for farmers. Therefore, developing relatively low-cost agricultural power machinery suitable for hilly and mountainous terrain is crucial.

[0052] In view of this, see Figures 1 to 14The low-center-of-gravity mountain lightweight tracked tractor provided in this embodiment of the utility model includes a support assembly 5, a power assembly 4, and a transmission assembly 10; the power assembly 4 includes an engine, and the transmission assembly 10 includes a clutch assembly, a gearbox assembly, and left and right half-shaft assemblies. The clutch assembly is connected to the engine and gearbox assembly, and the gearbox assembly is connected to the left and right half-shaft assemblies; the support assembly 5 includes a frame 51, which has a first fixed support point A, a second fixed support point B, a third fixed support point C, a first adjustable support point a, a second adjustable support point b, and a third adjustable support point c; the first fixed support point A and the second fixed support point B... Fixed support points B are all located at the first end of the frame 51 and are spaced apart. The two sides of the engine are connected to the first fixed support point A and the second fixed support point B, respectively. The third fixed support point C is located at the second end of the frame 51, and the middle of the rear end of the gearbox assembly is connected to the third fixed support point C. The first adjustable support point a is located in the middle of the frame 51, and the connection point between the engine and the clutch assembly is connected to the first adjustable support point a. The second adjustable support point b and the third adjustable support point c are both located at the second end of the frame 51 and are spaced apart. The two sides of the left and right half-shaft assemblies are connected to the second adjustable support point b and the third adjustable support point c, respectively.

[0053] Specifically, the hydraulic fuel tank and left mudguard 1, hydraulic oil tank and right mudguard 3 of the low center of gravity mountain light tracked tractor are installed as low as possible; at the same time, the front hood 9, steering gear and steering wheel 8, seat 6, safety frame 7, etc. are installed as low as possible while meeting the relevant standards for tracked tractors; while ensuring that the tractor's ground clearance is greater than 320mm, the center of gravity of the whole machine is lowered as much as possible to ensure that the tracked tractor can operate stably on a 25-degree slope.

[0054] This low-center-of-gravity mountain lightweight tracked tractor organically integrates the powertrain 4 and transmission assembly 10 with the frame 51. Specifically, the powertrain 4 and transmission assembly 10 are connected as a whole through three fixed support points (first fixed support point A, second fixed support point B, and third fixed support point C) and three adjustable support points (first adjustable support point a, second adjustable support point b, and third adjustable support point c). The weight of the powertrain 4 and transmission assembly 10 is transferred to the frame 51 through the above six support points. All other components on the tractor are directly connected to the frame 51, and their weight is supported and transferred to the frame 51.

[0055] The first fixed support point A and the second fixed support point B are located on the left and right sides of the tractor engine, and the third fixed support point C is located at the middle of the rear end of the gearbox assembly, forming a three-point fixed support equilateral triangle; the first adjustable support point a is located at the connection between the powertrain 4 and the transmission assembly 10, and the second adjustable support point b and the third adjustable support point c are located at the ends of the left and right half-shaft assemblies, forming an adjustable support inverted triangle; relying on the above-mentioned equilateral triangle support and inverted triangle support, the support strength is improved; the remaining parts of the tractor are directly connected to the frame 51, and their weight and force are directly transmitted to the frame 51, reducing the external load of the transmission assembly 10, enabling the transmission assembly 10 to be designed and manufactured in a lightweight manner, and effectively reducing the weight of the powertrain 4 and the transmission assembly 10 itself.

[0056] The powertrain 4 and transmission assembly 10 are directly mounted on the frame 51 using a six-point support, which ensures stable installation, lowers the tractor's center of gravity, improves the tractor's ability to resist rollover and slippage, and ensures that the tractor can operate stably on steep slopes, thereby increasing the tractor's applicability.

[0057] In the optional embodiment of this utility model, the frame 51 is filled with filler.

[0058] Specifically, the filler is sand and gravel; of course, other substances that can increase the weight of the frame 51 as filler should also be within the protection scope of this utility model embodiment.

[0059] The frame 51 is filled with filler to increase its weight, further lowering the tractor's center of gravity and improving operational stability.

[0060] In the optional embodiment of this utility model, the frame 51 includes a rectangular tube filled with filler.

[0061] Specifically, the frame 51 is welded from rectangular tubes, which are filled with sand and gravel, increasing the weight of the frame 51 by 40%-50%.

[0062] Rectangular tubes facilitate the filling of the packing material.

[0063] In the optional solution provided by this utility model embodiment, the frame 51 includes a support frame, a support plate and a connector; the support frame has a first fixed support point A, a second fixed support point B, a third fixed support point C, a first adjustable support point a, a second adjustable support point b and a third adjustable support point c; the support plate is connected to the first end of the support frame through the connector, and the connector is inclined.

[0064] Specifically, the support frame is designed as a hollow frame structure, simplifying the structure of the frame 51; the support plate is a plate-like structure. The connecting parts are inclined to keep both the support frame and the support plate horizontal. The tractor also includes a front cover 9, which is mounted on the support plate and covers the powertrain 4.

[0065] The support frame is used to support components such as the powertrain 4 and transmission 10, while the support plate is used to support components such as the front hood 9.

[0066] In the optional solution provided by this utility model embodiment, the frame 51 includes a first fixing member, a second fixing member, and a third fixing member. The first fixing member and the second fixing member are both installed at the first end of the support frame and are arranged opposite to each other; the third fixing member is installed at the second end of the support frame; the first fixing member has a first fixing support point A and is connected to the engine; the second fixing member has a second fixing support point B and is connected to the engine; the third fixing member has a third fixing support point C and is connected to the rear end of the gearbox assembly.

[0067] Specifically, the first, second, and third fixing members are arranged in a triangular pattern on the support frame, and are all welded to or connected to the support frame using screws. The first and second fixing members are L-shaped and positioned opposite each other to ensure stable engine mounting. Furthermore, both the first and second fixing members include reinforcing ribs, which are inclined. Even further, the first, second, and third fixing members are all provided with fixing holes for engaging with fasteners to secure the corresponding powertrain 4 or transmission assembly 10 components.

[0068] The first, second, and third fixing members provide the frame 51 with a first fixed support point A, a second fixed support point B, and a third fixed support point C, and facilitate the connection of the frame 51 with the powertrain 4 and the transmission assembly 10.

[0069] In the optional solution provided by this utility model embodiment, the frame 51 includes a first adjusting fastener, which is installed in the middle of the support frame; the first adjusting fastener is provided with a plurality of adjusting holes, which are spaced apart along the support frame to form a first adjustable support point a, and any adjusting hole is connected to the connection point of the engine and clutch assembly.

[0070] Specifically, the first adjusting fastener is installed in the middle of the support frame and has four adjusting holes. Adjustments can be made according to actual needs during use.

[0071] The first adjusting fastener enables the frame 51 to have a first adjustable support point a.

[0072] In the optional solution provided by this utility model embodiment, the frame 51 includes a second adjusting fastener and a third adjusting fastener. The second adjusting fastener and the third adjusting fastener are both installed at the second end of the support frame and are spaced apart along the width direction of the support frame. The second adjusting fastener is provided with a second adjustable support point b, and the third adjusting fastener is provided with a third adjustable support point c, and are respectively connected to both sides of the left and right half shaft assemblies.

[0073] Specifically, the second and third adjusting fasteners have the same structure and are located on both sides of the support frame; each has a cavity inside and the top wall is a downwardly concave arc shape; the adjusting member extends into the cavity through its side wall; by adjusting the length of the adjusting member extending into the cavity, the position of the parts located on the second and third adjusting fasteners can be adjusted.

[0074] The second adjusting fastener enables the frame 51 to have a second adjustable support point b, and the third adjusting fastener enables the frame 51 to have a third adjustable support point c.

[0075] In the optional solution provided by this utility model embodiment, the support assembly 5 further includes a tracked walking mechanism 52, which is connected to the frame 51 and is also connected to the left and right half-shaft assemblies for transmission.

[0076] Specifically, the tracked walking mechanism 52 is located at the bottom of the tractor and is in direct contact with the ground. The tracked walking mechanism 52 is designed and manufactured according to the structure of a heavy-duty tracked tractor, which increases the strength of the tracked tractor and also increases the mass of the bottom of the tracked tractor.

[0077] In the optional solution provided by this utility model embodiment, a suspension device 2 is also included, which is installed at the second end of the frame 51.

[0078] Specifically, the suspension device 2 adopts a low suspension point, which can lower the center of gravity of the entire tractor when agricultural implements are attached.

[0079] The following provides a detailed explanation of the principles of low-center-of-gravity mountain lightweight tracked tractors:

[0080] This low-center-of-gravity mountain lightweight tracked tractor increases the mass of the lower frame 51 and tracked walking mechanism 52, reduces the mass of the powertrain 4 and transmission assembly 10, and lowers the positions of the hydraulic fuel tank and left mudguard 1, hydraulic oil tank and right mudguard 3 as much as possible. At the same time, the installation positions of the front hood 9, steering gear and steering wheel 8, seat 6, safety frame 7, etc., are lowered as much as possible while meeting the relevant standards for tracked tractors. While ensuring that the tractor's ground clearance is greater than 320mm, the center of gravity of the whole machine is lowered as much as possible to ensure that the tracked tractor can operate stably on a 25-degree slope.

[0081] The powertrain 4 and transmission assembly 10 of the low center of gravity mountain lightweight tracked tractor are organically integrated with the frame 51. The powertrain 4 and transmission assembly 10 are connected to the frame 51 as a whole through 3 fixed support points and 3 adjustable support points. The weight of the transmission assembly 10 itself is transferred to the frame 51 through 6 support points. All other parts of the tractor are directly connected to the frame 51, and their weight is directly transferred to the frame 51. The fixed supports are located on the left and right sides of the tractor engine at the front, i.e., the first fixed support point A and the second fixed support point B, and at the rear, in the middle of the gearbox end, i.e., the third fixed support point C, forming a three-point fixed support equilateral triangle. The adjustable supports have the first adjustable support point a located at the connection between the powertrain 4 and the transmission assembly 10, and the rear is located at the ends of the left and right half-shaft assemblies, i.e., the second adjustable support point b and the third adjustable support point c, forming an adjustable support inverted triangle, effectively improving and strengthening the strength. All other tractor components are directly connected to the frame 51, and their weight and force are directly transmitted to the frame 51, reducing the external load on the transmission assembly 10. This allows for lightweight design and manufacturing of the transmission assembly 10, effectively reducing the weight of the powertrain 4 and the transmission assembly 10 itself.

[0082] The tracked walking mechanism 52 is located under the tractor and is in direct contact with the ground. Its walking mechanism is designed and manufactured according to the structure of a heavy-duty tracked tractor, which increases both the strength and the mass of the underside of the tracked tractor. At the same time, the frame 51 is made of rectangular tubes and filled with sand or other weight-increasing materials. Through this method, the frame 51 can increase its mass by 40-50%.

[0083] The suspension device 2 adopts a low suspension point, which can lower the center of gravity of the entire unit when agricultural implements are attached.

[0084] The installation positions of the hydraulic oil tank and left mudguard 1, and the hydraulic oil tank and right mudguard 3 should be moved as low as possible to lower the center of gravity of the whole machine.

[0085] It should be noted that, where there is no conflict, the features in the embodiments of this application can be combined with each other.

[0086] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A low-center-of-gravity lightweight tracked tractor for mountainous terrain, characterized in that: include: Support assembly, powertrain, and transmission assembly; The powertrain includes an engine, and the transmission assembly includes a clutch assembly, a gearbox assembly, and left and right half-shaft assemblies. The clutch assembly is connected to the engine and the gearbox assembly, and the gearbox assembly is connected to the left and right half-shaft assemblies. The support assembly includes a frame, the frame having a first fixed support point, a second fixed support point, a third fixed support point, a first adjustable support point, a second adjustable support point, and a third adjustable support point; The first fixed support point and the second fixed support point are both located at the first end of the frame and are spaced apart. The two sides of the engine are respectively connected to the first fixed support point and the second fixed support point. The third fixed support point is located at the second end of the frame, and the middle of the rear end of the gearbox assembly is connected to the third fixed support point. The first adjustable support point is located in the middle of the frame, and the connection point between the engine and the clutch assembly is connected to the first adjustable support point; the second adjustable support point and the third adjustable support point are both located at the second end of the frame and are spaced apart, and the two sides of the left and right half-shaft assemblies are respectively connected to the second adjustable support point and the third adjustable support point.

2. The low-center-of-gravity lightweight tracked tractor for mountainous terrain according to claim 1, characterized in that, The frame is filled with filler.

3. The low center of gravity mountain lightweight tracked tractor according to claim 2, characterized in that, The frame includes a rectangular tube filled with the filler.

4. The low-center-of-gravity lightweight tracked tractor for mountainous terrain according to claim 2, characterized in that, The frame includes a support frame, a support plate, and connecting components; The support frame has a first fixed support point, a second fixed support point, a third fixed support point, a first adjustable support point, a second adjustable support point, and a third adjustable support point; the support plate is connected to the first end of the support frame through the connector, and the connector is inclined.

5. The low-center-of-gravity lightweight tracked tractor for mountainous terrain according to claim 4, characterized in that, It also includes a front hood, which is mounted on the support plate and covers the powertrain.

6. The low-center-of-gravity lightweight tracked tractor for mountainous terrain according to claim 4, characterized in that, The frame includes a first fixing member, a second fixing member, and a third fixing member. The first fixing member and the second fixing member are both installed at the first end of the support frame and are arranged opposite to each other. The third fixing member is installed at the second end of the support frame. The first fixing member has a first fixing support point and is connected to the engine; the second fixing member has a second fixing support point and is connected to the engine. The third fixing member is provided with the third fixing support point and is connected to the rear of the gearbox assembly.

7. The low-center-of-gravity lightweight tracked tractor for mountainous terrain according to claim 4, characterized in that, The frame includes a first adjusting fastener, which is installed in the middle of the support frame; The first adjusting fastener is provided with a plurality of adjusting holes, which are spaced apart along the direction of the support frame to form the first adjustable support point. Any one of the adjusting holes is connected to the connection point between the engine and the clutch assembly.

8. The low-center-of-gravity lightweight tracked tractor for mountainous terrain according to claim 4, characterized in that, The frame includes a second adjusting fastener and a third adjusting fastener, both of which are installed at the second end of the support frame and are spaced apart along the width direction of the support frame. The second adjusting fastener is provided with the second adjustable support point, and the third adjusting fastener is provided with the third adjustable support point, and is respectively connected to both sides of the left and right half shaft assemblies.

9. The low-center-of-gravity lightweight tracked tractor for mountainous terrain according to claim 1, characterized in that, The support assembly also includes a tracked walking mechanism, which is connected to the frame and is driven by the left and right half-shaft assemblies.

10. The low center of gravity mountain lightweight tracked tractor according to claim 1, characterized in that, It also includes a suspension device, which is mounted at the second end of the frame.

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