Belt transmission mechanism for silage maize harvester

Abstract

The utility model discloses a belt transmission mechanism for a silage maize harvester, which comprises a rack, an engine, a cutting belt pulley, a fan belt pulley, a main belt pulley and a hydraulic motor are arranged on the rack, the engine is connected with a hydraulic pump, the hydraulic pump drives the hydraulic motor, the hydraulic motor is connected with the main belt pulley, and the cutting belt pulley is connected with the fan belt pulley. The main belt pulley, the fan belt pulley and the sectioning belt pulley are connected through a transmission belt, and the engine is connected with the hydraulic pump through a coupler.

Description

TECHNICAL FIELD

[0001] The utility model relates to a belt drive mechanism for silage machine. BACKGROUND

[0002] At present, the main drive of domestic silage machine generally adopts belt drive mode, such as Figures 3-4 As shown in the figure: the main belt with a compression wheel is arranged between the engine driving pulley, the fan pulley and the section pulley. The main belt is tensioned by adjusting the compression mechanism, and the main belt is provided with a main belt cover.

[0003] This main drive arrangement is prone to the following problems in actual work: the main belt is a consumable part and needs to be replaced frequently. Due to its long length (the outer circumference is generally greater than 8000mm) and large volume, it is very inconvenient to maintain and replace, and the price is relatively high, and the maintenance cost is relatively high; in order to facilitate the main drive arrangement, the engine of the silage machine is mostly arranged horizontally, and the outer section of the driving pulley and the outer section of the fan pulley must be flush, so that the horizontal position of the engine on the frame beam is determined; in addition, in order to avoid the interference between the main belt and the frame, the engine is generally arranged at a high position above the frame beam. This will cause the engine gravity center to be high, and the overall stability to be poor. CONTENT OF THE UTILITY MODEL

[0004] The utility model aims at solving the above problems of prior art, and provides a belt drive mechanism for silage machine.

[0005] A belt drive mechanism for silage machine, comprising a rack, wherein the rack is provided with an engine, a section pulley, a fan pulley, a main pulley and a hydraulic motor, the engine is connected with a hydraulic pump, the hydraulic pump drives the hydraulic motor, the hydraulic motor is connected with the main pulley, and the main pulley, the fan pulley and the section pulley are connected through a transmission belt.

[0006] Further, the engine and the hydraulic pump are connected through a coupling.

[0007] Further, the coupling is an elastic coupling.

[0008] Further, the material of the transmission belt is polyurethane or nylon.

[0009] Further, the rack is further provided with a speed sensor, and the speed sensor is used for sensing the rotating speed of each pulley or transmission belt.

[0010] Further, the material of the section pulley, the fan pulley and the main pulley is one of cast iron, steel and aluminum alloy.

[0011] Beneficial effects: compared with the prior art, the utility model discloses a main drive adopts hydraulic transmission instead of belt transmission, and the engine is vertically arranged, is directly arranged symmetrically in the middle of the frame, reduces the gravity center position of the engine, improves the overall stability, the engine output shaft is directly connected with the hydraulic pump, the fan pulley accessory is arranged with the driving pulley, is directly driven with the hydraulic motor, the driving pulley drives the fan pulley and the section pulley to rotate, the length of the belt is shortened, and the maintenance in the narrow space is facilitated, and the maintenance cost is greatly reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the front view of the transmission mechanism in the present instance;

[0013] Figure 2 It is the plan view of the transmission mechanism in the present instance;

[0014] Figure 3 It is the front view of the transmission mechanism in the prior art;

[0015] Figure 4 It is the plan view of the transmission mechanism in the prior art;

[0016] In the drawing, 1, section pulley, 2, fan pulley, 3, main drive wheel, 4, engine, 5, hydraulic motor. DETAILED DESCRIPTION

[0017] In order to deepen the understanding of the utility model, the utility model will be further described below in conjunction with examples and drawings, and the examples are only used to explain the utility model and do not constitute the limitation to the protection scope of the utility model.

[0018] As Figures 1-2 Shown, section pulley 1, fan pulley 2, main drive wheel 3, engine 4, hydraulic motor 5;

[0019] A belt transmission mechanism for silage machine, including frame, be equipped with engine, section pulley, fan pulley, main pulley, hydraulic motor on the frame, the engine is connected with hydraulic pump, the hydraulic pump drives hydraulic motor, the hydraulic motor is connected with main pulley, the main pulley, fan pulley, section pulley are connected through transmission belt.

[0020] In the embodiment, the engine is connected with the hydraulic pump through the shaft coupling.

[0021] In the embodiment, the shaft coupling is the elastic shaft coupling.

[0022] In the embodiment, the material of the transmission belt is polyurethane or nylon.

[0023] In the embodiment, the rack is further provided with a speed sensor for sensing the rotating speed of each belt pulley or the transmission belt.

[0024] In the embodiment, the material of the segmented belt pulley, the fan belt pulley and the main belt pulley is one of cast iron, steel and aluminum alloy.

[0025] Working principle: the original transmission mechanism directly drives the main transmission pulley through the engine, so the position of the main belt pulley cannot be changed, which results in that the main belt pulley is too far away from the segmented belt pulley and the fan belt pulley, and the transmission belt is too long; in the embodiment, the position of the main belt pulley is adjusted through the hydraulic motor, so that the distance between the segmented belt pulley, the fan belt pulley and the main belt pulley is shortened, and the transmission belt is shortened.

[0026] The above only describes the preferred embodiments of the utility model and is not used to limit the utility model, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A belt drive for a silage chopper characterized by, Including frame, the frame is equipped with engine, sectioned pulley, fan pulley, main pulley, hydraulic motor, the engine is connected with hydraulic pump, the hydraulic pump drives hydraulic motor, the hydraulic motor is connected with main pulley, main pulley, fan pulley, sectioned pulley are connected through transmission belt.

2. A belt drive for a silage chopper as claimed in claim 1, wherein, The engine is connected with the hydraulic pump through the shaft coupling.

3. A belt drive for a silage chopper as claimed in claim 2, wherein, The shaft coupling is an elastic shaft coupling.

4. A belt drive for a silage chopper as defined in claim 1, wherein The material of the transmission belt is polyurethane or nylon.

5. A belt drive for a silage chopper as defined in claim 1, wherein, The frame is also provided with a speed sensor, and the speed sensor is used to sense the rotating speed of each pulley or transmission belt.

6. A belt drive for a silage chopper as defined in claim 1, wherein The material of the sectioned pulley, fan pulley and main pulley is one of cast iron, steel and aluminum alloy.

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