High-strength gear box for ensilage machine

Abstract

The utility model relates to the technical field of gear boxes, and provides a high-strength gear box for an ensilage machine, which comprises a shell, a box body is fixedly connected to the side surface of the shell, an opening is formed in the side surface of the box body, a bearing A and a bearing B are arranged in the shell, a main shaft is rotatably connected to the interior of the shell through the bearing A and the bearing B, and the main shaft is rotatably connected to the interior of the shell through the bearing A and the bearing B; a warning mechanism is arranged in the box body, the top end of the main shaft protrudes out of the shell body, an output shaft of the motor is connected with the main shaft so as to drive the main shaft to rotate, lubricating oil is arranged on the surface of the main shaft, and the lubricating oil on the surface of the main shaft is used for reducing friction force of the main shaft. Therefore, when the output shaft of the motor is connected with the main shaft and drives the main shaft to rotate, the friction force of the main shaft can be greatly reduced, the main shaft can normally operate under high-strength work, and the overall service life is long.

Description

Technical Field

[0001] The utility model relates to the technical field of gearboxes, and specifically, to a high-strength gearbox for a forage harvester. Background Art

[0002] A gearbox is a basic transmission device with a wide range of applications. For example, in the application of a wind power generation set, the gearbox is an important mechanical component widely used in the wind power generation set. Its main function is to transmit the power generated by the wind turbine under the action of wind to the generator and enable it to obtain the corresponding rotational speed.

[0003] The utility model with the publication number of CN211975827U discloses a high-strength gearbox for a twin-screw extruder, which includes a housing with a sealed cavity inside. A first oil chamber and a second oil chamber are arranged inside the housing. An input shaft is arranged on the side of the first oil chamber, and a gear meshing with the transmission shaft is arranged at one end of the input shaft, and the other end passes through the housing and extends to the outside to connect to a power source. Two gears are also sleeved on the transmission shaft. In the above application document, the input shaft is connected to the power source, the input shaft rotates to drive the transmission shaft to rotate, the transmission shaft drives the first output shaft and the second output shaft to rotate, and the first output shaft and the second output shaft are connected to the input end of the extruder, so that the twin-screw extruder works. However, the overall structure has low strength and is prone to damage under long-term high-intensity work. Summary of the Utility Model

[0004] The utility model provides a high-strength gearbox for a forage harvester, which solves the problems raised in the above document.

[0005] The technical solution of the utility model is as follows: A high-strength gearbox for a forage harvester includes a housing. A box body is fixedly connected to the side of the housing. An opening is provided on the side of the box body. A bearing A and a bearing B are arranged inside the housing. A main shaft is rotatably connected inside the housing through the bearing A and the bearing B. A warning mechanism is arranged inside the box body.

[0006] The top end of the main shaft protrudes from the housing, and the output shaft of the motor is connected to the main shaft to drive the main shaft to rotate.

[0007] Lubricating oil is arranged on the surface of the main shaft, and the lubricating oil on the surface of the main shaft is used to reduce the friction of the main shaft.

[0008] The bearing A is located at a position close to the bottom of the main shaft, and the bearing B is located at a position close to the top of the main shaft. The bearing A and the bearing B cooperate to limit the main shaft, and at the same time, the friction between them and the main shaft is small.

[0009] The warning mechanism includes a connecting frame and a bell. The connecting frame is fixedly connected to the inner side wall of the box body. The top of the connecting frame penetrates and is fixedly connected with a hydraulic chamber. One end of the hydraulic chamber is internally slidably connected with a piston rod A through a spring piston. The end of the piston rod A away from the hydraulic chamber is fixedly connected with a rack. The other end of the hydraulic chamber is internally slidably connected with a piston rod B through a piston. The end of the piston rod B away from the hydraulic chamber is fixedly connected with a rubber impact block. The bottom of the connecting frame is rotatably connected with a rotating shaft. The bottom of the rotating shaft is fixedly connected with a roller. The surface of the rotating shaft is fixedly connected with a rotating gear. The bell is fixedly connected to the top of the box body.

[0010] In the initial state, the roller is in close contact with the main shaft. After the lubricating oil on the surface of the main shaft is consumed, the large friction when contacting the roller will drive the roller to rotate.

[0011] The rack is integrally L-shaped. The teeth on the rack are adapted to the teeth on the rotating gear. When the rotating gear rotates and its teeth mesh with the teeth on the rack, it will drive the rack to move to the right.

[0012] The rotating gear is an incomplete gear. When the rotating gear rotates to the part without teeth, it will disengage from the rack.

[0013] In the initial state, the rubber impact block is located on the right side of the bell. When the rubber impact block moves to the left, it will hit the bell.

[0014] The rubber impact block is integrally disc-shaped. The rubber impact block made of rubber is elastic and will not damage the bell.

[0015] The working principle and beneficial effects of the present utility model are as follows:

[0016] 1. By providing components such as a housing, a box body, a bearing A, and a bearing B, the present utility model achieves the connection between the motor output shaft and the main shaft. When the motor output shaft drives the main shaft to rotate, the friction of the main shaft can be greatly reduced, enabling the main shaft to operate normally under high-intensity work and having a relatively long overall service life.

[0017] 2. By providing a warning mechanism, the present utility model achieves the connection between the motor output shaft and the main shaft. When the motor output shaft drives the main shaft to rotate, when the lubricating oil on the main shaft is almost consumed, it will drive the rubber impact block to repeatedly hit the bell through the cooperation of components such as the roller, the rotating shaft, and the hydraulic chamber. The repeated hitting of the rubber impact block on the bell makes a sound to remind the staff to add lubricating oil to the main shaft. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The following further describes the present utility model in detail with reference to the drawings and specific embodiments.

[0019] Figure 1This is the three-dimensional front view of the overall structure of the utility model;

[0020] Figure 2 This is the three-dimensional side view of the overall structure of the utility model;

[0021] Figure 3 This is the three-dimensional sectional view of the overall structure of the utility model;

[0022] Figure 4 This is the three-dimensional schematic diagram of the overall structure of the warning mechanism of the utility model;

[0023] Figure 5 This is the three-dimensional schematic diagram of the structure of the warning mechanism of the utility model.

[0024] In the figure: 1, housing; 2, box body; 3, opening; 4, bearing A; 5, bearing B; 6, main shaft; 7, warning mechanism; 71, connecting frame; 72, hydraulic chamber; 73, piston rod A; 74, toothed rod; 75, piston rod B; 76, rotating shaft; 77, roller; 78, rotating gear; 79, bell; 710, rubber impact block. Specific embodiments

[0025] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts fall within the scope of protection of the present utility model.

[0026] Embodiment 1

[0027] As Figures 1 to 5 shown, this embodiment proposes a high-strength gearbox for a forage harvester. A high-strength gearbox for a forage harvester includes a housing 1. A box body 2 is fixedly connected to the side of the housing 1. An opening 3 is provided on the side of the box body 2. A bearing A 4 and a bearing B 5 are arranged inside the housing 1. The main shaft 6 is rotatably connected to the inside of the housing 1 through the bearing A 4 and the bearing B 5. The bearing A 4 is located at a position close to the bottom of the main shaft 6, and the bearing B 5 is located at a position close to the top of the main shaft 6. The bearing A 4 and the bearing B 5 cooperate to limit the main shaft 6, and at the same time, the friction force with the main shaft 6 is relatively small. The top end of the main shaft 6 protrudes from the housing 1. The output shaft of the motor is connected to the main shaft 6 to drive the main shaft 6 to rotate. Lubricating oil is provided on the surface of the main shaft 6. The lubricating oil on the surface of the main shaft 6 is used to reduce the friction force of the main shaft 6. A warning mechanism 7 is arranged inside the box body 2.

[0028] In this embodiment, the output shaft of the motor is connected to the main shaft 6. The motor drives the main shaft 6 to rotate through its output shaft. The bearing A 4 and the bearing B 5 cooperate to limit the main shaft 6, and at the same time, the friction force between them and the main shaft 6 is relatively small. Lubricating oil is applied to the surface of the main shaft 6 to further reduce the friction force of the main shaft 6, so that the main shaft 6 can operate normally under high-intensity work and has a relatively long overall service life.

[0029] Embodiment 2

[0030] As Figures 1 to 5 shown, on the premise of the same concept as the above-mentioned Embodiment 1, a second embodiment is also proposed. The warning mechanism 7 includes a connecting frame 71 and a bell 79. The connecting frame 71 is fixedly connected to the inner side wall of the box body 2. The top of the connecting frame 71 penetrates and is fixedly connected with a hydraulic chamber 72. One end of the hydraulic chamber 72 is internally connected with a piston rod A 73 through a spring piston. The end of the piston rod A 73 away from the hydraulic chamber 72 is fixedly connected with a rack 74. The other end of the hydraulic chamber 72 is internally connected with a piston rod B 75 through a piston. The end of the piston rod B 75 away from the hydraulic chamber 72 is fixedly connected with a rubber impact block 710. The bottom of the connecting frame 71 is rotatably connected with a rotating shaft 76. The bottom of the rotating shaft 76 is fixedly connected with a roller 77. The roller 77 is in close contact with the main shaft 6 in the initial state. After the lubricating oil on the surface of the main shaft 6 is consumed, the friction force is relatively large, and when it contacts the roller 77, it will drive the roller 77 to rotate. A rotating gear 78 is fixedly connected to the surface of the rotating shaft 76. The rack 74 is integrally L-shaped, and the teeth on the rack 74 are adapted to the teeth on the rotating gear 78. When the rotating gear 78 rotates and its teeth mesh with the teeth on the rack 74, it will drive the rack 74 to move to the right. The rotating gear 78 is an incomplete gear. When the rotating gear 78 rotates to the part without teeth, it will disengage from the rack 74. The bell 79 is fixedly connected to the top of the box body 2. The rubber impact block 710 is located on the right side of the bell 79 in the initial state. When the rubber impact block 710 moves to the left, it will hit the bell 79. The rubber impact block 710 is integrally disc-shaped, and the rubber impact block 710 made of rubber is elastic and will not cause damage to the bell 79.

[0031] In this embodiment, when the output shaft of the motor drives the main shaft 6 to rotate, if there is lubricating oil on the main shaft 6, the friction is small and the roller 77 will not be driven to rotate. When the lubricating oil on the main shaft 6 is almost exhausted, the friction increases. At this time, the roller 77 will be driven to rotate. The rotation of the roller 77 will drive the rotation of the rotating shaft 76. The rotation of the rotating shaft 76 drives the rotation of the rotating gear 78. When the teeth of the rotating gear 78 mesh with the teeth on the toothed rod 74, the toothed rod 74 will be driven to move to the right. The toothed rod 74 moving to the right drives the piston rod A73 to move to the right. The hydraulic chamber 72 is compressed by the spring. The piston rod A73 moving to the right will drive the piston rod B75 to move to the left through the hydraulic pressure. The piston rod B75 moving to the left will drive the rubber impact block 710 to move to the left. When the rubber impact block 710 moves to the left, it will impact the bell 79. When the rotating gear 78 rotates to the part without teeth and disengages from the toothed rod 74, the spring in the hydraulic chamber 72 rebounds to drive the piston rod A73 to move to the left and return to its original position. The toothed rod 74 also moves to the left and returns to its original position. The hydraulic pressure in the hydraulic chamber 72 drives the piston rod B75 and the rubber impact block 710 to move to the right and return to their original positions. The rubber impact block 710 repeatedly impacts the bell 79 to make a sound, reminding the staff to add lubricating oil to the main shaft 6.

[0032] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A high-strength gearbox for a forage harvester, characterized in that, It includes a housing (1), a box body (2) is fixedly connected to the side surface of the housing (1), an opening (3) is formed in the side surface of the box body (2), a bearing A (4) and a bearing B (5) are arranged inside the housing (1), a main shaft (6) is rotatably connected inside the housing (1) through the bearing A (4) and the bearing B (5), and a warning mechanism (7) is arranged inside the box body (2).

2. The high-strength gearbox for a forage harvester according to claim 1, wherein, The top end of the main shaft (6) protrudes from the housing (1).

3. A high-strength gearbox for a forage harvester according to claim 2, characterized in that, Lubricating oil is provided on the surface of the main shaft (6).

4. A high-strength gearbox for a forage harvester according to claim 3, characterized in that, The bearing A (4) is located at a position close to the bottom of the main shaft (6), and the bearing B (5) is located at a position close to the top of the main shaft (6).

5. The high-strength gearbox for a forage harvester according to claim 4, wherein, The warning mechanism (7) includes a connecting frame (71) and a bell (79). The connecting frame (71) is fixedly connected to the inner side wall of the box body (2). The top of the connecting frame (71) penetrates and is fixedly connected with a hydraulic chamber (72). One end inside the hydraulic chamber (72) is slidably connected with a piston rod A (73) through a spring piston. The end of the piston rod A (73) away from the hydraulic chamber (72) is fixedly connected with a toothed rod (74). The other end inside the hydraulic chamber (72) is slidably connected with a piston rod B (75). The end of the piston rod B (75) away from the hydraulic chamber (72) is fixedly connected with a rubber impact block (710). The bottom of the connecting frame (71) is rotatably connected with a rotating shaft (76). The bottom of the rotating shaft (76) is fixedly connected with a roller (77). A rotating gear (78) is fixedly connected to the surface of the rotating shaft (76). The bell (79) is fixedly connected to the top of the box body (2).

6. The high-strength gearbox for a forage harvester according to claim 5, characterized in that, The roller (77) is in close contact with the main shaft (6) in the initial state.

7. The high-strength gearbox for a forage harvester according to claim 6, characterized in that, The toothed rod (74) is integrally L-shaped, and the teeth on the toothed rod (74) are adapted to the teeth on the rotating gear (78).

8. A high-strength gearbox for a forage harvester according to claim 7, characterized in that, The rotating gear (78) is an incomplete gear.

9. The high-strength gearbox for a forage harvester according to claim 8, characterized in that, The rubber impact block (710) is located on the right side of the bell (79) in the initial state.

10. A high-strength gearbox for a forage harvester according to claim 9, characterized in that, The rubber impact block (710) is integrally disc-shaped.

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