Tractor chassis matched with double-plate clutch

Abstract

A tractor chassis matched with a two-piece clutch belongs to the technical field of tractors and comprises a frame assembly and a frame round girder, a front axle, a middle axle and a rear axle are sequentially arranged on the frame assembly from front to back, and an engine located above the front axle is arranged at the front end of the frame assembly; an adjoining gearbox auxiliary support is arranged in front of the frame round girder, and the gearbox auxiliary support is fixed on the frame assembly; the gearbox auxiliary support is connected with a gearbox located below the frame round girder, and an output shaft of the gearbox is provided with a double-plate clutch located behind the engine. The tractor chassis matched with the double-plate clutch is reasonable in design, ingenious in structure, compact in arrangement, favorable for being matched with the double-plate clutch, capable of avoiding interference, abrasion and collision among all parts, high in space utilization rate and suitable for popularization.

Description

Technical Field

[0001] The utility model relates to the technical field of tractors, in particular to a tractor chassis matched with a double-plate clutch. Background Art

[0002] A tractor generally refers to a large truck or semi-trailer that is towed by tools between the front and the carriage. That is, the front of the vehicle can be detached from the original carriage and tow other carriages, and the carriage can also be detached from the original front and towed by other fronts. Tractors are a mainstream means of transportation among commercial vehicles, with the characteristics of long transportation distance, strong carrying capacity, and a wide range of application scenarios. Since the road conditions of tractors are mostly inter-city ordinary highway transportation, the road conditions are relatively good, so tractors usually use single-plate clutches. However, in some plateaus and hilly areas, there are many winding mountain roads, and the driver needs to switch gears frequently. The service life of the single-plate clutch will be significantly reduced and cannot meet the vehicle's use requirements.

[0003] In the prior art, a dual-plate clutch generally has two driven plates and has good adaptability to working conditions. When a tractor equipped with a dual-plate clutch is used in plateaus and hilly areas, its service life and maintenance mileage will be significantly higher than that of a vehicle equipped with a single-plate clutch. The dual-plate clutch is very suitable for use on tractors that travel more frequently on mountainous roads.

[0004] Although tractors equipped with dual-plate clutches have the above advantages, they still have the following shortcomings in actual application: tractors used in mountainous areas are mostly equipped with hydraulic retarders. This type of vehicle is compact and has limited space. The dual-plate clutch has two driven plates and requires a larger installation space. Matching the dual-plate clutch will limit the original chassis space and pose a risk of interference. Utility Model Content

[0005] The purpose of the utility model is to overcome the shortcoming of the dual-plate clutch in the prior art that it occupies a large space, and to provide a tractor chassis matching the dual-plate clutch, which has a reasonable design, ingenious structure and compact arrangement, is conducive to matching the dual-plate clutch, can avoid interference and friction between components, has high space utilization, and is suitable for promotion.

[0006] The utility model is realized through the following technical scheme: a tractor chassis matched with a double-plate clutch comprises a frame assembly and a frame beam, a front axle, a middle axle and a rear axle are arranged on the frame assembly in sequence from front to rear, an engine located above the front axle is arranged at the front end of the frame assembly; a gearbox auxiliary support is arranged in close proximity in front of the frame beam, and the gearbox auxiliary support is fixed on the frame assembly; the gearbox auxiliary support is connected to a gearbox located below the frame beam, and an output shaft of the gearbox is equipped with a double-plate clutch located behind the engine.

[0007] A further improvement of the utility model is that the gearbox auxiliary support includes a portal frame and a bracket, the two ends of the portal frame are respectively connected to the two side longitudinal beams of the frame assembly, the bracket is located at the center of the portal frame, the top end of the bracket is connected to the portal frame, the bottom end of the bracket is located below the frame ingot beam, and the bottom end of the bracket is connected to the rear end of the gearbox.

[0008] A further improvement of the utility model is that a retarder cooling pipe for connecting the engine and the retarder is arranged above the gearbox, and the retarder cooling pipe is bent toward both sides of the frame assembly.

[0009] A further improvement of the utility model is that a drying tank bracket is arranged on the frame assembly and is located in front of the first cross beam of the frame, and the drying tank bracket is close to the first cross beam of the frame.

[0010] A further improvement of the utility model is that an oil tank is arranged on one side of the frame assembly.

[0011] A further improvement of the utility model is that an exhaust gas after-treatment system is arranged on the other side of the frame assembly.

[0012] A further improvement of the utility model is that a battery box located behind the exhaust after-treatment system is arranged on the other side of the frame assembly.

[0013] A further improvement of the utility model is that a urea tank located behind the battery box is arranged on the other side of the frame assembly.

[0014] A further improvement of the utility model is that two gas storage cylinders are arranged below the battery box.

[0015] A further improvement of the utility model is that the frame assembly is provided with a walking platform located behind the frame ingot beam.

[0016] From the above technical scheme, it can be seen that the beneficial effects of the utility model are: the chassis is compactly arranged, which is conducive to better matching the dual-plate clutch with the tractor, so that the tractor can have higher reliability even under mountain road conditions, prolonging the service life of the clutch, avoiding the economic losses and safety threats caused by premature failure of the clutch, and also avoiding the problem of interference and friction between the components. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solution of the utility model, the drawings required for use in the description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1It is a structural schematic diagram of a specific embodiment of the utility model.

[0019] Figure 2 It is a structural schematic diagram of a gearbox auxiliary support according to a specific embodiment of the utility model.

[0020] Figure 3 It is a structural schematic diagram of an oil tank according to a specific embodiment of the utility model.

[0021] Figure 4 It is a structural schematic diagram of an air storage cylinder of a specific embodiment of the utility model.

[0022] 1. Frame assembly; 101. Frame beam; 102. First crossbeam of frame; 2. Engine; 3. Twin-plate clutch; 4. Gearbox; 5. Exhaust after-treatment system; 6. Battery box; 7. Urea tank; 8. Middle axle; 9. Rear axle; 10. Front axle; 11. Retarder cooling pipe; 12. Gearbox auxiliary support; 1201. Door frame; 1202. Bracket; 13. Walkway; 14. Drying tank bracket; 15. Drive shaft; 16. Fuel tank; 17. Air cylinder. DETAILED DESCRIPTION

[0023] In order to make the purpose, features and advantages of the utility model more obvious and easy to understand, the technical scheme of the utility model will be clearly and completely described below in combination with the drawings in the specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the utility model, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent.

[0024] Please refer to the attached Figure 1 — Figure 4 , combined with a specific embodiment, it is described as follows: Based on the chassis of an existing 6×4 vehicle, a tractor chassis matched with a dual-plate clutch described in the utility model includes a frame assembly 1 and a frame beam 101, on which a front axle 10, a middle axle 8 and a rear axle 9 are arranged in sequence from front to rear, and an engine 2 located above the front axle 10 is arranged at the front end of the frame assembly 1; a close gearbox auxiliary support 12 is arranged in front of the frame beam 101, and the gearbox auxiliary support 12 is fixed on the frame assembly 1; the gearbox auxiliary support 12 is connected to the gearbox 4 located below the frame beam 101, and the output shaft of the gearbox 4 is equipped with a dual-plate clutch 3 located behind the engine 2; a transmission shaft 15 is arranged between the gearbox 4 and the middle axle 8, and the transmission shaft 15 is used to connect the gearbox 4 and the middle axle 8, so as to transmit power.

[0025] Specifically, the gearbox auxiliary support 12 includes a portal frame 1201 and a bracket 1202. The two ends of the portal frame 1201 are respectively connected to the two side longitudinal beams of the frame assembly 1. The bracket 1202 is located at the center of the portal frame 1201. The top of the bracket 1202 is connected to the portal frame 1201. The bottom end of the bracket 1202 is located below the frame beam 101, and the bottom end of the bracket 1202 is connected to the rear end of the gearbox 4.

[0026] The working principle of the utility model: the twin-plate clutch 3 can temporarily separate and engage the engine 2 and the gearbox 4, thereby ensuring the smooth starting and shifting of the vehicle. Due to the increase in the thickness of the twin-plate clutch 3, the gearbox 4 moves backward as a whole. After the gearbox 4 moves backward, the length of the transmission shaft 15 is shortened synchronously. The distance between the gearbox 4 and the frame beam 101 becomes closer, resulting in limited layout space between the frame beam 101, the gearbox 4, and the upper assembly parts. This chassis assembles the gearbox 4 through the gearbox auxiliary support 12, which can solve the above problems well. The design of the portal frame 1201 can avoid the retarder cooling pipe 11 and reserve enough space for the inner wiring harness layout of the frame assembly 1 as much as possible. The design of the bracket 1202 can also set the gearbox 4 below the frame beam 101, which can avoid dynamic interference between the gearbox 4 and the frame beam 101.

[0027] In one embodiment, a retarder cooling pipe 11 for connecting the engine 2 and the retarder is provided above the gearbox 4, and the retarder cooling pipe 11 is bent toward both sides of the frame assembly 1. Since the gearbox 4 is moved backward, the above structure can avoid interference between the retarder cooling pipe 11 and the frame beam 101.

[0028] In one embodiment, the frame assembly 1 is provided with a drying tank bracket 14 located in front of the first frame cross beam 102 , and the drying tank bracket 14 is close to the first frame cross beam 102 .

[0029] In one embodiment, a fuel tank 16 is disposed on one side of the vehicle frame assembly 1 , so that a fuel tank 16 with a larger capacity is arranged as much as possible.

[0030] In one embodiment, an exhaust aftertreatment system 5 is provided on the other side of the frame assembly 1, a battery box 6 is provided behind the exhaust aftertreatment system 5, a urea tank 7 is provided behind the battery box 6, and two gas cylinders 17 are provided below the battery box 6. The exhaust aftertreatment system 5 is on the same side as the supercharger of the engine 2, which can reduce the length of the exhaust pipeline, keep the exhaust gas at a higher temperature, and ensure the catalytic efficiency of the aftertreatment; the urea tank 7 is on the same side as the exhaust aftertreatment system 5, which can effectively shorten the length of the urea tank 7 pipeline; the gas cylinder 17 is arranged below the battery box 6, which can reserve more layout space for the frame assembly 1.

[0031] In one embodiment, the frame assembly 1 is provided with a walkway 13 located behind the frame beam 101 .

[0032] The terms "upper", "lower", "outer side", "inner side", etc. in the specification and claims of the utility model and the above-mentioned drawings are used to distinguish the relative relationship in position if they exist, and do not need to be qualitative. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments of the utility model described here can be implemented in an order other than those illustrated or described here. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions.

[0033] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A tractor chassis matched with a dual-plate clutch, comprising a frame assembly (1) and a frame beam (101), characterized in that: A front axle (10), a middle axle (8) and a rear axle (9) are arranged on the frame assembly (1) in sequence from front to back; an engine (2) located above the front axle (10) is arranged at the front end of the frame assembly (1); a gearbox auxiliary support (12) is arranged in close proximity to the front of the frame beam (101); the gearbox auxiliary support (12) is fixed to the frame assembly (1); the gearbox auxiliary support (12) is connected to a gearbox (4) located below the frame beam (101); and the output shaft of the gearbox (4) is equipped with a double-plate clutch (3) located behind the engine (2).

2. A tractor chassis matching a dual-plate clutch according to claim 1, characterized in that: The gearbox auxiliary support (12) comprises a portal frame (1201) and a bracket (1202), wherein the two ends of the portal frame (1201) are respectively connected to the longitudinal beams on both sides of the frame assembly (1), the bracket (1202) is located at the center of the portal frame (1201), the top end of the bracket (1202) is connected to the portal frame (1201), the bottom end of the bracket (1202) is located below the frame ingot beam (101), and the bottom end of the bracket (1202) is connected to the rear end of the gearbox (4).

3. A tractor chassis matching a dual-plate clutch according to claim 1 or 2, characterized in that: A retarder cooling pipe (11) for connecting the engine (2) and the retarder is arranged above the gearbox (4), and the retarder cooling pipe (11) is bent toward both sides of the vehicle frame assembly (1).

4. A tractor chassis matching a dual-plate clutch according to claim 3, characterized in that: The frame assembly (1) is provided with a drying tank bracket (14) located in front of the first cross beam (102) of the frame, and the drying tank bracket (14) is close to the first cross beam (102) of the frame.

5. A tractor chassis matching a dual-plate clutch according to claim 4, characterized in that: An oil tank (16) is provided on one side of the vehicle frame assembly (1).

6. A tractor chassis matching a dual-plate clutch according to claim 5, characterized in that: An exhaust gas after-treatment system (5) is arranged on the other side of the vehicle frame assembly (1).

7. A tractor chassis matching a dual-plate clutch according to claim 6, characterized in that: A battery box (6) located behind the exhaust after-treatment system (5) is arranged on the other side of the vehicle frame assembly (1).

8. A tractor chassis matching a dual-plate clutch according to claim 7, characterized in that: A urea tank (7) located behind the battery box (6) is arranged on the other side of the vehicle frame assembly (1).

9. A tractor chassis matching a dual-plate clutch according to claim 8, characterized in that: Two gas storage cylinders (17) are arranged below the battery box (6).

10. A tractor chassis matching a dual-plate clutch according to claim 9, characterized in that: The frame assembly (1) is provided with a walking platform (13) located behind the frame ingot beam (101).

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