Gap bridge output device capable of changing rotating speed and harvester

Abstract

The utility model discloses a gap bridge output device capable of changing rotating speed and a harvester, and belongs to the field of agricultural equipment, the gap bridge output device comprises a gap bridge, a transverse driving shaft is arranged at the rear end of the gap bridge, one end of the transverse driving shaft is connected with a driving chain wheel, and the other end of the transverse driving shaft is connected with a driving belt pulley; a transverse driven shaft is arranged at the front end of the gap bridge, one end of the transverse driven shaft is connected with a gear shifting box, the gear shifting box is provided with an output shaft and an input shaft, the output shaft of the gear shifting box is connected with the transverse driven shaft, the input shaft of the gear shifting box is connected with a driven belt wheel, and the driven belt wheel and the driving belt wheel are arranged on the same side of the gap bridge. The driven pulley and the driving pulley are driven through a belt; the gear shifting mechanism further comprises a flexible shaft, a shifting rod is arranged on the gear shifting box and can be driven by the flexible shaft to move, and the rotating speed of an output shaft of the gear shifting box can be changed by moving the shifting rod. According to the structure, the gear shifting box is connected to the transverse driven shaft, the frequency of frequently adjusting and replacing belt wheels and belts is reduced, and the harvesting efficiency of the harvester is improved.

Description

Technical Field

[0001] This utility model relates to the field of agricultural equipment, specifically to a bridge output device with adjustable rotation speed and a harvester. Background Technology

[0002] During the harvesting operation of a grain harvester, the feed speed of the header will vary depending on the type of crop being harvested, such as when harvesting corn, soybeans, sorghum, etc.

[0003] This requires replacing the header and matching pulleys and belts to change its rotation speed. This process involves disassembling belts, tensioners, pulleys, and other components, making it quite cumbersome. Especially when different crops mature in the same area, the frequency of replacements is very high, impacting the harvester's operating efficiency.

[0004] To address the aforementioned problems, this invention designs and manufactures a bridge output device and harvester with adjustable rotation speed to overcome the aforementioned deficiencies. Summary of the Invention

[0005] To address the problems existing in the prior art, this utility model provides a bridge output device and harvester with adjustable rotation speed. By connecting a shift box at the transverse driven shaft, it solves the problem of frequently adjusting and changing the frequency of pulleys and belts, thereby increasing the harvesting efficiency of the harvester.

[0006] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a bridge output device with variable rotation speed, including a bridge, a transverse drive shaft is provided at the rear end of the bridge, a drive sprocket is connected to one end of the transverse drive shaft, and a drive belt pulley is connected to the other end of the transverse drive shaft.

[0007] The front end of the bridge is provided with a transverse driven shaft. One end of the transverse driven shaft is connected to a shift box. The shift box is provided with an output shaft and an input shaft. The output shaft of the shift box is connected to the transverse driven shaft. A driven pulley is connected to the input shaft of the shift box. The driven pulley and the driving pulley are located on the same side of the bridge. The driven pulley and the driving pulley are driven by a belt.

[0008] It also includes a flexible shaft, and the shift box is equipped with a lever. The flexible shaft can drive the lever to move, and the movement of the lever can change the output shaft speed of the shift box.

[0009] Preferably, a belt tensioner is provided on one side of the belt, and the belt tensioner is capable of tensioning the belt.

[0010] Preferably, the belt tensioner is rotatably connected to one end of the swing rod, and the other end of the swing rod is hinged to the side wall of the bridge.

[0011] It also includes a spring telescopic rod, the end of which abuts against the swing rod, causing the belt tensioner to tend to tension the belt.

[0012] Preferably, the other end of the transverse driven shaft is provided with a transmission structure;

[0013] The bridge has a cutting platform at its front end, and the transmission structure is connected to the input shaft of the cutting platform.

[0014] Preferably, a sleeve is provided on the outer side of the transverse driven shaft, and the sleeve is connected to the bridge;

[0015] The sleeve has two fixed plates at both ends, and each fixed plate is hinged with a swing cylinder, which can drive the bridge to swing up and down.

[0016] Preferably, the sleeve is connected to the transverse driven shaft via several bearings.

[0017] Preferably, the fixed plate is provided with a flexible shaft through hole, and the flexible shaft is connected to the lever on the gear shift box through the flexible shaft through hole.

[0018] Preferably, the flexible shaft is connected to the through hole of the flexible shaft via a linear bearing.

[0019] Preferably, it also includes a body, on which a driver's cab is provided, and a pedal is provided in the driver's cab. The flexible shaft is connected to the pedal, and the action of the pedal can drive the lever to move through the flexible shaft.

[0020] A harvester includes the aforementioned variable-speed bridge output device.

[0021] The advantages of this utility model are:

[0022] 1. This utility model utilizes a gear shifting box connected at the transverse driven shaft, solving the problem of the harvester needing to frequently adjust and change pulleys and belts when harvesting different crops and different plots, thus increasing the harvester's harvesting efficiency. Furthermore, the gear shifting operation is simple, the overall structural layout is reasonable, and it increases the harvester's profitability.

[0023] 2. The belt tensioner of this utility model does not require repeated adjustments, thus ensuring the belt tension.

[0024] 3. This utility model realizes the transmission of the cutting table by means of the transmission structure at the other end of the transverse driven shaft, so that the cutting table does not need to rely on an additional driving device.

[0025] 4. The sleeve structure on the outside of the transverse driven shaft not only positions the transverse driven shaft, but also facilitates the connection of the swing cylinder. Attached Figure Description

[0026] Figure 1This is a partial schematic diagram of a bridge output device with variable rotation speed;

[0027] Figure 2 This is an enlarged schematic diagram of point A of a bridge output device with variable rotation speed;

[0028] Figure 3 This is a schematic diagram of the front view of a bridge output device with adjustable rotation speed.

[0029] Figure 4 This is a schematic diagram of a bridge output device with adjustable rotation speed, viewed from the rear.

[0030] In the diagram: 1. Bridge; 2. Flexible shaft; 3. Pedal; 4. Swing cylinder; 5. Sleeve; 6. Fixed plate; 7. Driven pulley; 8. Belt; 9. Lateral driven shaft; 10. Drive pulley; 11. Gearbox; 12. Belt tensioner; 13. Spring telescopic rod; 14. Swing rod; 15. Linear bearing. Detailed Implementation

[0031] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.

[0032] like Figures 1 to 4 As shown, a variable speed bridge output device includes a bridge 1, with a transverse drive shaft at the rear end of the bridge 1. One end of the transverse drive shaft is connected to a drive sprocket, and the other end of the transverse drive shaft is connected to a drive pulley 10.

[0033] The front end of the bridge 1 is provided with a transverse driven shaft 9. One end of the transverse driven shaft 9 is connected to a shift box 11. The shift box 11 is provided with an output shaft and an input shaft. The output shaft of the shift box 11 is connected to the transverse driven shaft 9. A driven pulley 7 is connected to the input shaft of the shift box 11. The driven pulley 7 and the driving pulley 10 are located on the same side of the bridge 1. The driven pulley 7 and the driving pulley 10 are driven by a belt 8.

[0034] It also includes a flexible shaft 2, and a lever is provided on the gear shift box 11. The flexible shaft 2 can drive the lever to move, and the movement of the lever can change the output shaft speed of the gear shift box 11. Specifically, it also includes a machine body, on which a driver's cab is provided. The driver's cab is equipped with a pedal 3. The flexible shaft 2 is connected to the pedal 3. The movement of the pedal 3 can drive the lever to move through the flexible shaft 2.

[0035] This invention utilizes a shift box 11 connected at the transverse driven shaft 9, which solves the problem of the harvester needing to frequently adjust and change pulleys and belts 8 when harvesting different crops and different plots, thus increasing the harvester's harvesting efficiency. Furthermore, the shifting operation is simple, the overall structural layout is reasonable, and it increases the harvester's profitability.

[0036] A belt tensioner 12 is provided on one side of the belt 8. The belt tensioner 12 can tension the belt 8. Specifically, the belt tensioner 12 is rotatably connected to one end of the swing rod 14. The other end of the swing rod 14 is hinged to the side wall of the bridge 1. It also includes a spring telescopic rod 13. The end of the spring telescopic rod 13 abuts against the swing rod 14, so that the belt tensioner 12 tends to tension the belt 8.

[0037] The present invention has a transmission structure at the other end of the transverse driven shaft 9 and a cutting table at the front end of the bridge 1. The transmission structure is connected to the input shaft of the cutting table. The cutting table is driven by the transmission structure at the other end of the transverse driven shaft 9, and the cutting table does not need to rely on an additional drive device.

[0038] The present invention has a sleeve 5 on the outside of the transverse driven shaft 9. The sleeve 5 is connected to the transverse driven shaft 9 by several bearings. The sleeve 5 is connected to the bridge 1. Two fixed plates 6 are provided at both ends of the sleeve 5. A swing cylinder 4 is hinged on each of the two fixed plates 6. The swing cylinder 4 can drive the bridge 1 to swing up and down.

[0039] The fixed plate 6 is provided with a through hole for the flexible shaft 2. The flexible shaft 2 is connected to the lever on the shift box 11 through the through hole. Preferably, the flexible shaft 2 is connected to the through hole through the linear bearing 15.

[0040] This utility model also includes a harvester, which includes the above-mentioned variable speed bridge output device.

[0041] It should be understood that these embodiments are for illustrative purposes only and are not intended to limit the scope of protection of this utility model. Furthermore, it should be understood that after reading the technical description of this utility model, those skilled in the art can make various alterations, modifications, and / or variations to this utility model, and all such equivalent forms also fall within the scope of protection defined by the appended claims.

Claims

1. A bridge output device with variable rotation speed, characterized in that, Includes a bridge (1), the rear end of which is provided with a transverse drive shaft, one end of which is connected to a drive sprocket, and the other end of which is connected to a drive pulley (10). The bridge (1) has a transverse driven shaft (9) at its front end. One end of the transverse driven shaft (9) is connected to a gearbox (11). The gearbox (11) has an output shaft and an input shaft. The output shaft of the gearbox (11) is connected to the transverse driven shaft (9). A driven pulley (7) is connected to the input shaft of the gearbox (11). The driven pulley (7) and the driving pulley (10) are located on the same side of the bridge (1). The driven pulley (7) and the driving pulley (10) are driven by a belt (8). It also includes a flexible shaft (2), and the shift box (11) is provided with a lever. The flexible shaft (2) can drive the lever to move, and the movement of the lever can cause the output shaft speed of the shift box (11) to change.

2. The bridge output device with variable rotation speed according to claim 1, characterized in that, A belt tensioner (12) is provided on one side of the belt (8), and the belt tensioner (12) can tension the belt (8).

3. The bridge output device with variable rotation speed according to claim 2, characterized in that, The belt tensioning pulley (12) is rotatably connected to one end of the swing rod (14), and the other end of the swing rod (14) is hinged to the side wall of the bridge (1); It also includes a spring telescopic rod (13), the end of which abuts against the swing rod (14) to cause the belt tensioner (12) to tend to tension the belt.

4. The bridge output device with variable rotation speed according to claim 1, characterized in that, The other end of the transverse driven shaft (9) is provided with a transmission structure; The bridge (1) has a cutting table at its front end, and the transmission structure is connected to the input shaft of the cutting table.

5. The bridge output device with variable rotation speed according to claim 1, characterized in that, A sleeve (5) is provided on the outside of the transverse driven shaft (9), and the sleeve (5) is connected to the bridge (1); The sleeve (5) has two fixed plates (6) at both ends, and each fixed plate (6) is hinged with a swing cylinder (4). The swing cylinder (4) can drive the bridge (1) to swing up and down.

6. The bridge output device with variable rotation speed according to claim 5, characterized in that, The sleeve (5) is connected to the transverse driven shaft (9) by several bearings.

7. The bridge output device with variable rotation speed according to claim 5, characterized in that, The fixed plate (6) is provided with a through hole for a flexible shaft (2), and the flexible shaft (2) is connected to the lever on the gear shift box (11) through the through hole.

8. The bridge output device with variable rotation speed according to claim 7, characterized in that, The flexible shaft (2) is connected to the flexible shaft (2) through a through hole via a linear bearing (15).

9. The bridge output device with variable rotation speed according to claim 1, characterized in that, It also includes a body, on which a driver’s cab is provided, and a pedal (3) is provided in the driver’s cab. The flexible shaft (2) is connected to the pedal (3), and the pedal (3) can move the lever through the flexible shaft (2).

10. A harvester, characterized in that, Includes the variable rotation speed bridge output device as described in any one of claims 1 to 9.

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