RU210152U1 - agricultural tractor - Google Patents

Abstract

The utility model relates to agricultural engineering, namely to agricultural tractors, and is designed to perform various work in agriculture, construction, industry in an assembly with mounted, semi-mounted and trailed machines. An agricultural tractor is proposed, containing an engine (1), a supporting frame (2), a hood (3) with removable side covers (4), a gearbox (5), a running system (6), a cab (7), front supports (8) with shock absorbers placed on the engine (1). At the same time, it contains a power take-off shaft (14), a final drive (15), a clutch housing (17) connected to the clutch assembly (16), and between the engine (1) and the clutch housing (17) it contains an intermediate assembly made in the form of an adapter plate (18), moreover, the geometric parameters of the plate (18) and the design of the front supports (8) with shock absorbers are selected to match the geometric parameters and configuration of the installed engine (1).

Description

The utility model relates to agricultural engineering, namely to agricultural tractors, and is designed to perform various work in agriculture, construction, industry in an assembly with mounted, semi-mounted and trailed machines.

Today, agricultural tractors of various configurations are in demand, including those with engines of various types from various manufacturers. In this case, the engines have different dimensions, configuration and coordinates of the seats on the supporting frames of the tractors.

A number of agricultural tractors from various manufacturers are equipped with a specific engine. For example, in heavy universal tractors "John Deere-8430", "John Deere-8530" only a John Deere engine can be installed.

Known agricultural tractor general purpose BELARUS model 3522, containing protected by the hood of the engine, the supporting frame of the tractor, gearbox, final drive, final drives, suspension system, cab [Operating manual. The site of JSC "Minsk Tractor Plant". [Electronic resource] - June 11, 2020. - Access mode: http://belarus-tractor.com/service/operation-manual].

This tractor is equipped with a Deutz TCD 2013 L06 4V or Caterpillar C9 C9CPXL08.8ESK engine [MTZ 3022, 3522, 2522 tractors. [Electronic resource] - April 15, 2020. - Access mode: http://wwvv.agrosb.by/traktor- mtz-3022-belarus.html].

Another modification of the tractor described above is also known - BELARUS-3022, containing an engine protected by a hood, a tractor supporting frame, a gearbox, a final drive, final drives, a running system, a cab. This tractor is equipped with a Detroit Diesel S40E 8.7 LTA M142 engine. This tractor can be equipped with DEUTZ BF06M1013FC or Detroit Diesel Corporation S40E 8.7LTA engines. However, the installation of engines of other types from different manufacturers in the tractors described above leads to a reconfiguration of their power compartment, a change in the engine hood, and a change in the electrical components of the tractor.

As a prototype, according to the totality of general technical features for the proposed agricultural tractor, based on the results of the analysis of the prior art, the design of an industrial tractor adapted for the installation of engines of various types [Patent RU No. 46728 U1, publ. July 27, 2005]. This tractor contains an engine, a torque converter, a carrier frame, a hood with removable side covers, a gearbox, a running system, a cab, front supports with shock absorbers placed on the engine.

At the same time, an intermediate unit is installed between the engine and the torque converter in the form of a connecting rigid coupling, for example, cylindrical, with flanges at the ends, the ends are connected on one side by a bolted connection to the engine flywheel, on the other, by means of a spline connection, to the torque converter shaft, and the connecting the clutch is located inside the fixed casing connecting the engine with the torque converter housing into a single power unit, and the length of the fixed casing is equal to the difference between the total length of the engine with a torque converter of one and another type. This ensures the installation of engines of various types in tractors with a hydraulic drive only, although today it is desirable to install engines of various types in tractors with a mechanical drive.

Thus, the task of the utility model is to develop a design of an agricultural tractor with a mechanical drive, which can provide the possibility of upgrading existing models of tractors, for example, "BELARUS" series 2500-3000, 3500, by installing engines of various types, configurations and dimensions without changing the design of the main tractor units.

The problem is solved with the help of the inventive agricultural tractor, containing an engine, a supporting frame, a hood with removable side covers, a gearbox, a running system, a cab, front mounts with shock absorbers placed on the engine. At the same time, the agricultural tractor comprises a power take-off shaft, a final drive, a clutch housing connected to the clutch assembly. Between the engine and the clutch housing there is an intermediate assembly made in the form of an adapter plate, and the adapter plate is made with the possibility of structural connection of the engine crankshaft axis through the clutch assembly, including the flywheel, clutch, shaft, flange, with the shaft axis of the clutch housing. The use of adapter plates of this design makes it possible to install engines of various types, configurations and sizes in the tractor without changing the design of the main components of the tractor.

In preferred embodiments, the flywheel flange is configured to spline the flywheel to the power take-off shaft. Spline connection provides high reliability in the transmission of rotation, dynamic loads.

The advantages and benefits of the proposed agricultural tractor will be further illustrated by examples of some possible preferred, but not limiting forms of implementation with reference to the positions of the figures of the drawings, which schematically show:

fig. 1 is a side view of the proposed agricultural tractor;

fig. 2 - the clutch assembly of an agricultural tractor in section.

In FIG. 1 is a schematic side view of the inventive agricultural tractor, which contains an engine 1 mounted on a carrier frame 2, a hood 3 with removable side covers 4, a gearbox 5, a running system 6, a cab 7, front supports 8 placed on the engine 1 with shock absorbers. In this case, the running system 6 is made in the form of a front drive axle 9, a rear axle 10 equipped with a housing 11, and a mover made in the form of a pair of front 12 and a pair of rear 13 wheels. This view also shows the power take-off shaft 14, the final drive 15 connected to the clutch assembly 16, the clutch housing 17. Between the engine 1 and the housing 17 of the clutch contains an intermediate node made in the form of an adapter plate 18. In the implementation form shown in the drawing, the adapter plate 18 structurally connects the crankshaft axis (not shown in the drawing) of the engine 1 through the clutch assembly 16 with the shaft axis (in the drawing not shown) clutch housing 17.

In FIG. 2 is a diagrammatic sectional view of an agricultural tractor clutch assembly 16 .

Thus, in particular, the clutch assembly 16 includes a flywheel 19, a clutch 20, a shaft 21, a flange 22. The flange 22 is configured to spline the flywheel 19 with the power take-off shaft 14.

The inventive agricultural tractor functions as follows.

The tractor engine 1 is mounted on the carrier frame 2 by means of front supports 8 with shock absorbers placed on the engine 1, and is also structurally connected to the adapter plate 18, which structurally connects the engine 1 crankshaft axis through the clutch assembly 16 with the shaft axis of the clutch housing 17. The geometric parameters of the plate 18 and the design of the front supports 8 with shock absorbers are selected according to the geometric parameters and configuration of the installed engine 1.

To ensure visibility of the tractor from the cabin 7, special removable side covers 4 of the hood 3 are installed on both sides of the engine.

The transmission of rotation from the engine 1 to the clutch housing 17 is carried out by means of the clutch assembly 16, including the flywheel 19, the clutch 20 of the clutch, the shaft 21, the flange 22. Through the spline connection of the shaft 21 and the clutch 20, the rotation is transmitted to the clutch housing 17, then to the gearbox 5 , then to the rear axle 10, equipped with a housing 11, and the final drive 15 of the planetary type.

The flange 22 of the flywheel 19 is made with the possibility of spline connection of the flywheel 19 with the shaft 14 of the power take-off. Through this connection, rotation is transmitted to the shaft 14 of the power take-off.

Replacing the engine in the proposed agricultural tractor is as follows.

When installing an engine 1 of a different type, the placement coordinates and the design of the supports 8 with shock absorbers change in accordance with the design of the installed engine 1. Depending on the type, configuration, geometric parameters of the installed engine, the geometric parameters of the adapter plate 18 are changed so that the installed engine 1 can fit into space under the hood 3. At the same time, when installing an engine 1 of a different type, the design of the adapter plate 18 and the main components of the agricultural tractor, the hood 3 and the side covers 4 of the hood 3, the clutch housing 17, remains unchanged.

Claims (2)

1. An agricultural tractor containing an engine (1), a supporting frame (2), a hood (3) with removable side covers (4), a gearbox (5), a running system (6), a cab (7), front supports (8 ) with shock absorbers placed on the engine (1), characterized in that it contains a power take-off shaft (14), a final drive (15), a clutch body (17) connected to the clutch assembly (16), and between the engine (1) and the body (17) of the clutch contains an intermediate assembly made in the form of an adapter plate (18), made with the possibility of structural connection of the axis of the crankshaft of the engine (1) through the clutch assembly (16), including the flywheel (19), the clutch (20) of the clutch, the shaft ( 21), flange (22), with the axis of the shaft of the clutch housing (17). 2. The tractor according to claim. 2, characterized in that the flange (22) of the flywheel (19) is made with the possibility of splined connection of the flywheel (19) with the power take-off shaft (14).

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