Belt tensioning device of corn harvester

Abstract

The utility model relates to the technical field of conveying belts, in particular to a corn harvester belt tensioning device which comprises a U-shaped plate, the U-shaped plate is fixedly installed on the surface of one side of a supporting plate, and a vertical rod is fixedly installed between the surface of one side of the U-shaped plate and the surface of one side of the supporting plate. A threaded rod is rotationally connected between the surface of one side of the U-shaped plate and the surface of one side of the supporting plate, a rotary disc is fixedly installed at a port of one end of the threaded rod, and the surface of the threaded rod is in threaded connection with an L-shaped plate. The utility model solves the problems that the belt cannot be tightly attached to a driven roller and a driving roller and deviates or slips if the belt is continuously used due to abrasion and looseness caused by long-term use in the use of the conveyor belt of the existing corn harvester, and the belt cannot be tightly attached to the driven roller and the driving roller if the belt is in a slipping state for a long time. And due to the existence of sliding friction and high-frequency rotation of the driving roller and the driven roller, the belt is even burnt due to continuous high temperature.

Description

Technical Field

[0001] The utility model relates to the technical field of conveyor belts, in particular to a belt tensioning device for a corn harvester. Background Art

[0002] Conveyor belts, also known as transport belts, are composite products of rubber, fiber, metal, or plastic and fabric used in conveyor belts to carry and transport materials. Conveyor belts are widely used in cement, coking, metallurgy, chemical industry, steel and other industries where the conveying distance is short and the conveying volume is small.

[0003] The existing corn harvester conveyor belt will wear and loosen due to long-term use. If it continues to be used, the belt will not fit tightly on the driven roller and the active roller, and the belt will deviate or slip. If the belt is in a slipping state for a long time, due to the existence of sliding friction and the high-frequency rotation of the active roller and the driven roller, the belt may even be burned due to continuous high temperature. Utility Model Content

[0004] The utility model aims to solve the technical problems in the above background and proposes a belt tensioning device for a corn harvester.

[0005] The cam-shaped roller is connected with the gear train of the two supporting plates, and the cam-shaped roller is connected with the gear train of the two supporting plates by the spring, and the cam-shaped roller is connected with the gear train of the two supporting plates by the spring.

[0006] Preferably, a turntable is fixedly installed on one end of the threaded rod, an L-shaped plate is threadedly connected to the surface of the threaded rod, and the L-shaped plate is slidably connected to the threaded rod and the vertical rod. The setting of the turntable has the effect of driving the threaded rod to rotate.

[0007] Preferably, two long plates are fixedly mounted on the surface of the L-shaped plate, a long rod is rotatably connected between the two long plates, a tensioning roller is fixedly mounted on the surface of the long rod, and the arrangement of the long plates serves the effect of mounting the long rod.

[0008] Preferably, an adjustment device is provided on one side of the support plate, and the adjustment device includes two rectangular plates, the two rectangular plates are fixedly mounted on one side surface of the support plate, a sliding rod is fixedly mounted between the two rectangular plates, an extension plate is fixedly mounted on one side surface of the support plate, and a long bolt is threadedly connected to one side surface of the extension plate. The setting of the rectangular plates has the effect of installing the sliding rod, and the setting of the extension plates has the effect of installing the long bolts.

[0009] Preferably, a slider is threadedly connected to the surface of the long bolt, and the slider is slidably connected with the long bolt and the slide rod. A short plate is fixedly installed on one side surface of the slider, and grooves are provided on both side surfaces of the short plate. The setting of the slider has the effect of driving the short plate to move.

[0010] Preferably, one end of the driven shaft is hinged with a connecting block, and two limit plates are fixedly installed on the side surface of the connecting block away from the driven shaft, and one side surface of the two limit plates is fixedly installed with limit rods, and one end of the two limit rods away from the limit plates is located inside the groove, and the setting of the limit plates serves the effect of installing the limit rods.

[0011] Compared with the prior art, the advantages and positive effects of the utility model are:

[0012] 1. In the utility model, by arranging a tensioning device, when the conveying belt becomes loose after long-term use and needs to be tightened to make it tightly fit the surfaces of the active roller and the driven roller, the turntable is rotated first, and the rotation of the turntable drives the threaded rod to rotate, and the rotation of the threaded rod drives the L-shaped plate to slide downward on the surface of the vertical rod, and the downward sliding of the L-shaped plate drives the two long plates to move downward, and the downward movement of the two long plates drives the long rod to move downward, and the long rod moves downward, and the downward movement of the long rod drives the tensioning roller to move downward, and the tensioning roller moves downward to contact the conveying belt and exert a downward pressure on the conveying belt, so that the conveying belt is always in a taut state, and then the conveying belt can be tightly fitted on the surfaces of the active roller and the driven roller, thereby ensuring the normal operation of the corn harvester, through the cooperation of the above structure, the tensioning roller can be moved downward to make the conveying belt tightly fit on the surfaces of the active roller and the driven roller, thereby preventing the conveying belt from deviating and slipping from the surfaces of the active roller and the driven roller, and at the same time avoiding the high temperature burning caused by sliding friction when the conveying belt is loose, further improving the stability and safety of the device when in use.

[0013] 2. In the utility model, by arranging the adjusting device, when the conveying belt deviates on the active roller and the driven roller and needs to be adjusted to reset, first close the conveying belt to stop running, then use the wrench to rotate the long bolt, the rotation of the bolt will drive the slider to slide on the surface of the slide rod, the sliding of the slider on the surface of the slide rod will drive the short plate to move, the movement of the short plate will drive the two limit rods to move, and at the same time, it will also drive the two limit rods to slide inside the groove, the movement of the two limit rods will drive the two limit plates to move, the movement of the two limit plates will drive the connecting block to move, the movement of the connecting block will drive the driven shaft to rotate, the rotation of the driven shaft will drive the driven roller to rotate, the rotation of the driven roller will adjust the movement angle of the conveying belt during operation, so as to adjust the deviated conveying belt and reset it, when the conveying belt is adjusted to the normal angle, stop rotating the long bolt at this time, and the conveying belt deviation adjustment work is completed, through the cooperation of the above structure, the deviated conveying belt can be adjusted in time to prevent the conveying belt from running off and causing continuous friction on the edge, causing wear and even high-temperature burning, thereby further improving the safety and stability of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The utility model provides a three-dimensional structural schematic diagram of a belt tensioning device for a corn harvester;

[0015] Figure 2 The utility model proposes a belt tensioning device for a corn harvester Figure 1 A schematic cross-sectional structure diagram of ;

[0016] Figure 3 The utility model proposes a belt tensioning device for a corn harvester Figure 2 The structural diagram at A in the middle;

[0017] Figure 4 The utility model proposes a belt tensioning device for a corn harvester Figure 1 The structural diagram at B in the middle;

[0018] Figure 5 The utility model proposes a belt tensioning device for a corn harvester Figure 2 Schematic diagram of the structure at C in the middle;

[0019] Figure 6 The utility model proposes a belt tensioning device for a corn harvester Figure 2 Schematic diagram of the structure at D

[0020] Legend:

[0021] 1. Support plate; 2. Tensioning device; 21. U-shaped plate; 22. Vertical rod; 23. Threaded rod; 24. Turntable; 25. L-shaped plate; 26. Long plate; 27. Long rod; 28. Tensioning roller; 3. Adjusting device; 301. Rectangular plate; 302. Sliding rod; 303. Extension plate; 304. Long bolt; 305. Sliding block; 306. Short plate; 307. Groove; 308. Connecting block; 309. Limiting plate; 310. Limiting rod; 4. Cross brace; 5. Active shaft; 6. Active roller; 7. Through groove; 8. Rotating shaft; 9. Driven shaft; 10. Driven roller; 11. Conveyor belt. DETAILED DESCRIPTION

[0022] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the utility model is further described below in conjunction with the accompanying drawings and embodiments. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0023] In the following description, many specific details are set forth to facilitate a full understanding of the present invention. However, the present invention may also be implemented in other ways than those described herein. Therefore, the present invention is not limited to the specific embodiments of the following disclosure.

[0024] See also Figure 1-6 The utility model provides a technical solution: a belt tensioning device for a corn harvester, comprising two support plates 1, two cross braces 4 are fixedly installed between the two support plates 1, a driving shaft 5 is rotatably connected between the two support plates 1, a driving roller 6 is fixedly installed on the surface of the driving shaft 5, a through groove 7 is opened on one side surface of the two support plates 1, a rotating shaft 8 is rotatably connected between the inner wall surfaces on both sides of one of the through grooves 7, a driven shaft 9 is fixedly installed on the surface of the rotating shaft 8, a driven roller 10 is fixedly installed on the surface of the driven shaft 9, and a transmission belt 11 is provided on the outside of the driving roller 6 and the driven roller 10.

[0025] The specific settings and functions of the tensioning device 2 and the adjusting device 3 are described in detail below.

[0026] In this embodiment: a tensioning device 2 is provided on one side of the support plate 1, and the tensioning device 2 includes a U-shaped plate 21, the U-shaped plate 21 is fixedly installed on one side surface of the support plate 1, a vertical rod 22 is fixedly installed between one side surface of the U-shaped plate 21 and one side surface of the support plate 1, and a threaded rod 23 is rotatably connected between one side surface of the U-shaped plate 21 and one side surface of the support plate 1.

[0027] In this embodiment, the U-shaped plate 21 is provided to install the vertical rod 22 and the threaded rod 23 .

[0028] Specifically, a turntable 24 is fixedly mounted on one end of the threaded rod 23 , and an L-shaped plate 25 is threadedly connected to the surface of the threaded rod 23 . The L-shaped plate 25 is slidably connected to the vertical rod 22 via the threaded rod 23 .

[0029] In this embodiment, the setting of the rotating disk 24 plays the effect of driving the threaded rod 23 to rotate.

[0030] Specifically, two long plates 26 are fixedly installed on the surface of the L-shaped plate 25, a long rod 27 is rotatably connected between the two long plates 26, and a tensioning roller 28 is fixedly installed on the surface of the long rod 27. The setting of the long plates 26 plays the effect of installing the long rod 27.

[0031] In this embodiment: an adjustment device 3 is provided on one side of the support plate 1, and the adjustment device 3 includes two rectangular plates 301, and the two rectangular plates 301 are fixedly installed on one side surface of the support plate 1, and a slide bar 302 is fixedly installed between the two rectangular plates 301, and an extension plate 303 is fixedly installed on one side surface of the support plate 1, and a long bolt 304 is threadedly connected to one side surface of the extension plate 303. When the conveyor belt 11 deviates on the active roller 6 and the driven roller 10 and needs to be adjusted to reset, the conveyor belt is first closed to stop running, and then the long bolt 304 is turned with a wrench. The rotation of the bolt will drive the slider 305 to slide on the surface of the slide bar 302, and the sliding of the slider 305 on the surface of the slide bar 302 will drive the short plate 306 to move, and the movement of the short plate 306 will drive the two limit rods 310 to move. It will also drive the two limit rods 310 to slide inside the groove 307. The movement of the two limit rods 310 will drive the two limit plates 309 to move. The movement of the two limit plates 309 will drive the connecting block 308 to move. The movement of the connecting block 308 will drive the driven shaft 9 to rotate. The rotation of the driven shaft 9 will drive the driven roller 10 to rotate. The rotation of the driven roller 10 will adjust the movement angle of the conveyor belt 11 during operation, thereby adjusting the offset conveyor belt 11 to reset it. When the conveyor belt 11 is adjusted to a normal angle, just stop rotating the long bolt 304. The deviation adjustment work of the conveyor belt 11 is completed. Through the cooperation of the above-mentioned structure, the offset conveyor belt can be adjusted in time to prevent the conveyor belt from running off and causing continuous friction on the edge, causing wear and even high-temperature burning, thereby further improving the safety and stability of the device.

[0032] Specifically, a slider 305 is threadedly connected to the surface of the long bolt 304 , and the slider 305 is slidably connected to the slide rod 302 by means of the long bolt 304 . A short plate 306 is fixedly installed on one side surface of the slider 305 , and grooves 307 are provided on both side surfaces of the short plate 306 .

[0033] In this embodiment, the setting of the slider 305 has the effect of driving the short plate 306 to move.

[0034] Specifically, a connecting block 308 is hinged at one end of the driven shaft 9, and two limit plates 309 are fixedly installed on the surface of the connecting block 308 away from the driven shaft 9. Limit rods 310 are fixedly installed on one surface of the two limit plates 309, and the ends of the two limit rods 310 away from the limit plates 309 are both located inside the groove 307.

[0035] In this embodiment, the setting of the limiting plate 309 plays the role of installing the limiting rod 310 .

[0036] Working principle: By setting the tensioning device 2, when the conveyor belt 11 is loosened after long-term use, it needs to be tightened to make it fit tightly to the surfaces of the active roller 6 and the driven roller 10, first rotate the turntable 24, the rotation of the turntable 24 will drive the threaded rod 23 to rotate, the rotation of the threaded rod 23 will drive the L-shaped plate 25 to slide downward on the surface of the vertical rod 22, the downward sliding of the L-shaped plate 25 will drive the two long plates 26 to move downward, the downward movement of the two long plates 26 will drive the long rod 27 to move downward, the long rod 27 moves downward, the downward movement of the long rod 27 will drive the tensioning roller 28 to move downward, the tensioning roller moves downward to contact the conveyor belt 11 and give the conveyor belt 11 a tensioning force. The belt 11 applies a downward pressure so that the transmission belt 11 is always in a taut state, so that the transmission belt 11 can fit tightly against the surfaces of the active roller 6 and the driven roller 10, thereby ensuring the normal operation of the corn harvester. Through the cooperation of the above-mentioned structure, the tensioning roller 28 can be moved downward to make the transmission belt 11 fit tightly against the surfaces of the active roller 6 and the driven roller 10, thereby preventing the transmission belt 11 from deviating and slipping from the surfaces of the active roller 6 and the driven roller 10, and at the same time avoiding the high temperature burning caused by sliding friction when the transmission belt 11 is relaxed, further improving the stability and safety of the device during use. When the conveyor belt 11 deviates on the active roller 6 and the driven roller 10 and needs to be adjusted to reset, first turn off the conveyor belt to stop it, then use a wrench to turn the long bolt 304. The rotation of the bolt will drive the slider 305 to slide on the surface of the slide bar 302. The sliding of the slider 305 on the surface of the slide bar 302 will drive the short plate 306 to move. The movement of the short plate 306 will drive the two limit rods 310 to move, and at the same time, it will also drive the two limit rods 310 to slide inside the groove 307. The movement of the two limit rods 310 will drive the two limit plates 309 to move. The movement of the two limit plates 309 will drive the connecting block 308 moves, and the movement of the connecting block 308 will drive the driven shaft 9 to rotate. The rotation of the driven shaft 9 will drive the driven roller 10 to rotate. The rotation of the driven roller 10 will adjust the movement angle of the conveyor belt 11 during operation, thereby adjusting the offset conveyor belt 11 to reset it. When the conveyor belt 11 is adjusted to a normal angle, stop rotating the long bolt 304 at this time, and the conveyor belt 11 deviation adjustment work is completed. Through the cooperation of the above-mentioned structure, the offset conveyor belt can be adjusted in time to prevent the conveyor belt from deviating and causing continuous friction on the edge, causing wear and even high-temperature burning, thereby further improving the safety and stability of the device.

[0037] The above is only a preferred embodiment of the utility model, and does not limit the utility model in other forms. Any technician familiar with the profession may use the technical content disclosed above to change or modify it into an equivalent embodiment with equivalent changes and apply it to other fields. However, any simple modification, equivalent change and modification made to the above embodiment based on the technical essence of the utility model without departing from the technical solution of the utility model still belongs to the protection scope of the technical solution of the utility model. In the description of the utility model, it should be noted that unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the utility model can be understood by specific circumstances.

Claims

1. A belt tensioning device for a corn harvester, comprising two support plates (1), two cross braces (4) fixedly mounted between the two support plates (1), a driving shaft (5) rotatably connected between the two support plates (1), a driving roller (6) fixedly mounted on the surface of the driving shaft (5), a through groove (7) formed on one side surface of the two support plates (1), a rotating shaft (8) rotatably connected between the inner wall surfaces of both sides of one of the through grooves (7), a driven shaft (9) fixedly mounted on the surface of the rotating shaft (8), a driven roller (10) fixedly mounted on the surface of the driven shaft (9), a transmission belt (11) being arranged outside the driving roller (6) and the driven roller (10), characterized in that: A tensioning device (2) is provided on one side of the support plate (1), and the tensioning device (2) comprises a U-shaped plate (21), the U-shaped plate (21) being fixedly mounted on a side surface of the support plate (1), a vertical rod (22) being fixedly mounted between a side surface of the U-shaped plate (21) and a side surface of the support plate (1), and a threaded rod (23) being rotatably connected between a side surface of the U-shaped plate (21) and a side surface of the support plate (1).

2. A corn harvester belt tensioner according to claim 1, characterized in that: A rotating disk (24) is fixedly mounted on one end of the threaded rod (23); an L-shaped plate (25) is threadedly connected to the surface of the threaded rod (23); and the L-shaped plate (25) is slidably connected to the threaded rod (23) and the vertical rod (22).

3. A corn harvester belt tensioner according to claim 2, characterized in that: Two long plates (26) are fixedly mounted on the surface of the L-shaped plate (25), a long rod (27) is rotatably connected between the two long plates (26), and a tensioning roller (28) is fixedly mounted on the surface of the long rod (27).

4. A corn harvester belt tensioner according to claim 1, characterized in that: An adjusting device (3) is provided on one side of the support plate (1), and the adjusting device (3) comprises two rectangular plates (301), the two rectangular plates (301) are fixedly mounted on one side surface of the support plate (1), a sliding rod (302) is fixedly mounted between the two rectangular plates (301), an extension plate (303) is fixedly mounted on one side surface of the support plate (1), and a long bolt (304) is threadedly connected to one side surface of the extension plate (303).

5. A corn harvester belt tensioner according to claim 4, characterized in that: A slider (305) is threadedly connected to the surface of the long bolt (304), and the slider (305) is slidably connected to the slide rod (302) by means of the long bolt (304). A short plate (306) is fixedly mounted on one side surface of the slider (305), and grooves (307) are provided on both side surfaces of the short plate (306).

6. A corn harvester belt tensioner according to claim 1, characterized in that: A connecting block (308) is hingedly connected to one end of the driven shaft (9); two limit plates (309) are fixedly mounted on a surface of the connecting block (308) on a side away from the driven shaft (9); limit rods (310) are fixedly mounted on a surface of one side of the two limit plates (309); and ends of the two limit rods (310) away from the limit plates (309) are located inside the groove (307).

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