Reversing device of header

Abstract

The invention relates to the technical field of header mechanisms, and discloses a header reversing device which comprises header equipment, gap bridge equipment is installed on one side of the header equipment, a header component is arranged on the header equipment, a gap bridge component is arranged on the gap bridge equipment, and a reversing control assembly is arranged between the header equipment and the gap bridge equipment. The gap bridge component is in transmission connection with a header upper-stage transmission component, the reverse rotation control assembly comprises a transmission shaft, a first belt wheel is installed at one end of the transmission shaft, a driving chain wheel is installed at the other end of the transmission shaft, and a reverse rotation driving piece and a meshing linkage piece are arranged on the transmission shaft. When reverse rotation is needed, the meshing chain wheel is meshed with the meshing sleeve, the transmission shaft is driven by the reverse rotation motor to rotate reversely, other components are driven to rotate reversely, blockage material discharging is facilitated, and the equipment maintenance efficiency is improved.

Description

Technical Field

[0001] This invention belongs to the technical field of cutting platform mechanisms, specifically a reversing device for a cutting platform. Background Technology

[0002] With the development of automation and intelligence in domestic combine harvesters, the continuous forward rotation of the header components allows lodged and high-yield crops to continuously enter the header. However, the drawbacks of traditional combine harvesters, such as being cumbersome, time-consuming, and labor-intensive in troubleshooting, are becoming increasingly apparent. When harvesting lodged and high-yield crops, overfeeding can cause the header to become clogged and jammed. Clearing the jammed straw is time-consuming and laborious. In order to quickly clear the blockage and restore the machine's operation, a motor-driven header reversing device is needed. Summary of the Invention

[0003] In view of the above situation and to overcome the defects of the prior art, the present invention provides a reversing device for the cutting table, which effectively solves the problems mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: a reversing device for a cutting table, comprising a cutting table device, a bridging device installed on one side of the cutting table device, a cutting table component provided on the cutting table device, a bridging component provided on the bridging device, a reversing control component provided between the cutting table device and the bridging device, and a cutting table upper transmission component being drivenly connected to the bridging component.

[0005] The reversing control assembly includes a drive shaft, with a first pulley mounted at one end of the drive shaft and a drive sprocket mounted at the other end of the drive shaft. The drive shaft is equipped with a reversing drive component and a meshing linkage component.

[0006] The reversing drive includes a meshing sprocket located on the outside of the drive shaft, a rolling bearing installed between the meshing sprocket and the drive shaft, a retaining ring and a spacer on one side of the rolling bearing, a drive sprocket on one side of the meshing sprocket, a chain on the outside of the drive sprocket and the meshing sprocket, the drive sprocket being fixedly connected to the output shaft of the reversing motor, and the reversing motor being installed on the cutting table equipment.

[0007] A mounting bracket is symmetrically arranged on the outer side of the drive shaft. A connecting bearing is installed between the mounting bracket and the drive shaft. The mounting bracket is bolted to the cutting table equipment.

[0008] Preferably, the meshing linkage includes a meshing sleeve slidably mounted on the outside of the drive shaft. The meshing sleeve is located on the side of the meshing sprocket away from the drive sprocket. A retaining ring body and a shaft retaining ring are mounted on the outside of the meshing sleeve, and an axial thrust bearing is mounted on the outside of the meshing sleeve.

[0009] Preferably, a rotary arm is mounted on the outside of the axial thrust bearing, and a connecting shaft is mounted at both the upper and lower ends of the rotary arm. The lower connecting shaft is rotatably connected to the rotary shaft, which is fixedly mounted on the cutting table equipment. The upper connecting shaft is rotatably connected to the output shaft of the drive motor, which is fixedly mounted on the cutting table equipment.

[0010] Preferably, a first transmission chain is installed on the outside of the drive sprocket and the cutting table component, and a first tensioning mechanism is provided on one side of the first transmission chain. A second transmission belt is installed on the outside of the first pulley and the bridge component, and a second tensioning mechanism is provided on one side of the second transmission belt.

[0011] Preferably, the upper transmission component of the cutting platform is connected to the output wheel of the engine, a cutting platform clutch controller is provided between the bridge component on the bridge equipment and the upper transmission component of the cutting platform, and a main clutch controller is provided between the engine and the upper transmission component of the cutting platform.

[0012] Preferably, the cutting table clutch controller includes a cutting table clutch handle, which can be connected to end C and end D, and end D is provided with a first contact switch.

[0013] Preferably, the main clutch controller includes a main clutch handle, which can be connected to terminals C and D, and a second contact switch is provided at terminal D.

[0014] Compared with the prior art, the beneficial effects of the present invention are:

[0015] 1. In this invention, a meshing sprocket and a meshing sleeve are provided between the reversing motor and the transmission shaft. When the cutting table equipment is working normally, the transmission shaft and the reversing motor are in a separated state. When the transmission shaft rotates, the reversing motor is in a stationary state. When reversal is required, the meshing sprocket and the meshing sleeve mesh, and the reversing motor drives the transmission shaft to reverse, which in turn drives other components to reverse, making it easier to discharge blocked materials and improving equipment maintenance efficiency.

[0016] 2. In this invention, the engagement sleeve is driven by a motor to achieve the action. The motor is synchronized with the reverse motor on the line. When the reverse motor is powered on and reverses, the output end of the motor extends to engage the engagement sprocket with the engagement sleeve. When the reverse motor is powered off, the output end of the motor retracts to achieve separation. The linkage between the motor and the reverse motor ensures the stable operation of the equipment. At the same time, the push rod of the motor has a bidirectional driving force, which can ensure the effective engagement and disengagement of the engagement sleeve.

[0017] 3. In this invention, the reverse motor switch is equipped with a safety protection contact. The first contact switch and the second contact switch are respectively located at the cutter table clutch handle position and the main clutch handle position. After the first contact switch and the second contact switch are contacted, the reverse motor is protected against accidental contact. The two modes can be switched by moving the cutter table clutch handle and the main clutch handle, which is convenient to use.

[0018] 4. In this invention, a belt drive is used between the drive shaft and the bridge component, and a reversing motor is set to drive the drive shaft to rotate in the opposite direction. When the drive shaft reverses, the tight side of the second drive belt is stressed, which avoids belt slippage. If the bridge component is directly driven to reverse, the loose side of the second drive belt will become the tight side. Under the action of driving tension, the second drive belt is prone to loosening and then slipping, which can lead to belt burnout. Attached Figure Description

[0019] The accompanying drawings are provided to further illustrate the invention and form part of the specification. They are used together with the embodiments of the invention to explain the invention and do not constitute a limitation thereof.

[0020] In the attached diagram:

[0021] Figure 1 This is a schematic diagram of the reversing device of the cutting table of the present invention;

[0022] Figure 2 This is a schematic diagram of the inversion control component structure of the present invention;

[0023] Figure 3 This is a schematic diagram of the external connection structure of the drive shaft of the present invention;

[0024] Figure 4 This is the circuit control diagram of the present invention;

[0025] In the diagram: 1. Cutting table equipment; 2. Bridge equipment; 3. Cutting table component; 4. Bridge component; 5. Reverse control assembly; 501. Drive shaft; 502. First pulley; 503. Drive sprocket; 504. Reverse drive component; 5041. Meshing sprocket; 5042. Rolling bearing; 5043. Hole retaining ring; 5044. Spacer; 505. Drive sprocket; 506. Chain; 507. Reverse motor; 508. Meshing linkage component; 5081. Meshing sleeve; 5082. Retaining ring body; 5083. Shaft retaining ring; 5084. 509. Axial thrust bearing; 510. Rotary arm; 511. Connecting shaft; 512. Rotary shaft; 513. Drive motor; 514. Connecting bearing; 515. Mounting bracket; 6. First transmission chain; 7. First tensioning mechanism; 8. Second transmission belt; 9. Second tensioning mechanism; 10. Upper transmission component of the cutting table; 11. Engine; 12. Cutting table clutch controller; 1201. Cutting table clutch handle; 1202. First contact switch; 13. Main clutch controller; 1301. Main clutch handle; 1302. Second contact switch. Detailed Implementation

[0026] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0027] Example 1, by Figures 1-4 The present invention includes a reversing device for a cutting table, comprising a cutting table device 1, a bridging device 2 installed on one side of the cutting table device 1, a cutting table component 3 provided on the cutting table device 1, a bridging component 4 provided on the bridging device 2, a reversing control component 5 provided between the cutting table device 1 and the bridging device 2, and a cutting table upper transmission component 10 being drivenly connected to the bridging component 4.

[0028] The reversing control assembly 5 includes a drive shaft 501, a first pulley 502 is mounted on one end of the drive shaft 501, a drive sprocket 503 is mounted on the other end of the drive shaft 501, mounting brackets 514 are symmetrically arranged on the outer side of the drive shaft 501, a connecting bearing 513 is installed between the mounting bracket 514 and the drive shaft 501, the mounting bracket 514 is bolted to the cutting table equipment 1, and a reversing drive component 504 and a meshing linkage component 508 are provided on the drive shaft 501.

[0029] The reversing drive component 504 includes a meshing sprocket 5041 disposed on the outside of the drive shaft 501. A rolling bearing 5042 is installed between the meshing sprocket 5041 and the drive shaft 501. A retaining ring 5043 and a spacer 5044 are provided on one side of the rolling bearing 5042. A drive sprocket 505 is provided on one side of the meshing sprocket 5041. A chain 506 is provided on the outside of the drive sprocket 505 and the meshing sprocket 5041. The drive sprocket 505 is fixedly connected to the output shaft of the reversing motor 507, which is mounted on the cutting table equipment 1.

[0030] The meshing linkage 508 includes a meshing sleeve 5081 slidably mounted on the outside of the drive shaft 501. A meshing sprocket 5041 and meshing sleeve 5081 are provided between the reversing motor 507 and the drive shaft 501. When the cutting table equipment 1 is working normally, the drive shaft 501 and the reversing motor 507 are in a separated state. When the drive shaft 501 rotates, the reversing motor 507 is in a stationary state. When reversal is required, the meshing sprocket 5041 meshes with the meshing sleeve 5081, and drives the drive shaft 501 to reverse through the reversing motor 507, causing other components to reverse as well, facilitating material discharge and improving equipment maintenance efficiency. The meshing sleeve 5081 is located on the side of the meshing sprocket 5041 away from the drive sprocket 503. A retaining ring body 5082 and a shaft retaining ring 5083 are mounted on the outside of the meshing sleeve 5081. An axial thrust bearing 5084 is mounted on the outside of the meshing sleeve 5081. The rotary arm 509 has connecting shafts 510 installed at both its upper and lower ends. The lower connecting shaft 510 is rotatably connected to the rotary shaft 511, which is fixedly installed on the cutting table equipment 1. The upper connecting shaft 510 is rotatably connected to the output shaft of the drive motor 512, which is fixedly installed on the cutting table equipment 1. The meshing sleeve 5081 is activated by the drive motor 512. The drive motor 512 is synchronized with the reverse motor 507 on the line. When the reverse motor 507 is energized and reverses, the output end of the drive motor 512 extends, causing the meshing sprocket 5041 to mesh with the meshing sleeve 5081. When the reverse motor 507 is de-energized, the output end of the drive motor 512 retracts, achieving separation. The linkage between the drive motor 512 and the reverse motor 507 ensures the stable operation of the equipment. At the same time, the drive motor 512 is a push rod with bidirectional driving force, which can ensure the effective engagement and disengagement of the meshing sleeve 5081.

[0031] A first transmission chain 6 is installed on the outside of the first pulley 502 and the cutting table component 3. A first tensioning mechanism 7 is provided on one side of the first transmission chain 6. A second transmission belt 8 is installed on the outside of the drive sprocket 503 and the bridge component 4. A second tensioning mechanism 9 is provided on one side of the second transmission belt 8. The transmission shaft 501 and the bridge component 4 are connected by belt drive. The reverse motor 507 is used to drive the transmission shaft 501 to rotate in the opposite direction. When the transmission shaft 501 rotates in the opposite direction, the tight side of the second transmission belt 8 can be stressed, which avoids belt slippage. If the bridge component 4 is directly driven to rotate in the opposite direction, the loose side of the second transmission belt 8 will become the tight side. Under the action of driving tension, the second transmission belt 8 is prone to loosening and then slipping, which can lead to belt burnout.

[0032] The upper transmission component 10 of the cutter head is connected to the output wheel of the engine 11. A cutter head clutch controller 12 is installed between the bridge component 4 on the bridge device 2 and the upper transmission component 10 of the cutter head. A main clutch controller 13 is installed between the engine 11 and the upper transmission component 10 of the cutter head. The cutter head clutch controller 12 includes a cutter head clutch handle 1201, which can be connected to both end C and end D. A first contact switch 1202 is installed at end D. The main clutch controller 13 includes a main clutch handle 1301. 01 can be connected to both C and D terminals. The D terminal is equipped with a second contact switch 1302. The reverse motor 507 switch is equipped with a safety protection contact. The first contact switch 1202 and the second contact switch 1302 are respectively located at the cutter table clutch handle 1201 and the main clutch handle 1301. When the first contact switch 1202 and the second contact switch 1302 are contacted, the reverse motor 507 is protected against accidental contact. The two modes can be switched by moving the cutter table clutch handle 1201 and the main clutch handle 1301, making it convenient to use.

[0033] Working principle: According to the appendix Figure 1 As shown in the figure, during normal operation, the rotation directions of the header component 3 on the header equipment 1 and the bridge component 4 on the bridge equipment 2 are as shown in the figure. The meshing sprocket 5041 and meshing sleeve 5081 on the reverse control component 5 are in a disengaged state, and each motor is stationary. When a blockage occurs during forward rotation, in order to quickly and conveniently clear the blockage, the header component 3 and the bridge component 4 need to be reversed to spit out the fed crop. At this time, the clutch of the header component 3 is disengaged, and the header component 3 and the bridge component 4 are in a stationary state. The reverse motor 507 is powered by the button. The reverse motor 507 drives the transmission shaft 501 to rotate in the opposite direction through the chain 506. Then the transmission shaft 501 drives the header component 3 to rotate in the opposite direction, and also drives the bridge component 4 to rotate in the opposite direction, thereby realizing the reverse action.

[0034] According to the appendix Figure 2 and appendix Figure 3 As shown, during normal operation, the meshing sprocket 5041 and the shaft retaining ring 5083 are in the disengaged state as shown in the figure. The meshing sprocket 5041 is rotatably connected to the drive shaft 501 through the numbered rolling bearing 5042. The inner hole of the meshing sleeve 5081 is fitted and fixed with the drive shaft 501, so that the meshing sleeve 5081 can transmit torque and also slide axially. It can be an internal hexagonal hole, spline, milled flat, flat key or other cross-sectional structure. The first pulley 502 drives the drive shaft 501 to rotate, and the drive shaft 501 drives the drive sprocket 503 and the meshing sleeve 5081 to rotate. The meshing sprocket 5041 is in a stationary state.

[0035] When working in reverse, the rotary shaft 511 is stationary. Turning on the reverse button pushes the motor 512 to extend, which in turn pushes the rotary arm 509 to rotate around the rotary shaft 511. The upper transmission component 10 of the cutting table pushes the rotary arm 509, thereby driving the meshing sleeve 5081 on the transmission shaft 501 to move towards the meshing sprocket 5041. When the meshing teeth of the meshing sprocket 5041 contact the meshing teeth of the meshing sleeve 5081, the reverse motor 507 starts to drive the drive sprocket 505 to rotate. This drives the meshing sprocket 5041 to rotate via the chain 506, which in turn drives the meshing sleeve 5081 to rotate, thereby driving the transmission shaft 501 to rotate in the opposite direction.

[0036] When the reverse button is turned off, the output end of the motor 512 retracts, pushing the rotary arm 509 to rotate around the rotary shaft 511. The rotary arm 509 pushes the retaining ring body 5082, thereby driving the meshing sleeve 5081 to move away from the meshing sprocket 5041 on the transmission shaft 501, thereby separating the transmission shaft 501 from the reverse motor 507.

[0037] According to the appendix Figure 2 and appendix Figure 3 As shown, when the work begins, the engine 11 is started. When the main clutch lever 1301 is in the letter C disengaged position, the power of the engine 11 cannot be transmitted to the next level. At this time, the upper transmission component 10 of the cutting platform, the bridge component 4, and the cutting platform component 3 are all in a stationary state.

[0038] When the main clutch lever 1301 is in the "D" engaged position, the engine 11 transmits power to the next stage, and the upper transmission component 10 of the cutter head begins to rotate forward. If the cutter head clutch lever 1201 is in the "C" engaged position, the bridge component 4 and the upper transmission component 10 of the cutter head are stationary. If the cutter head clutch lever 1201 is in the "D" engaged position, the bridge component 4 and the cutter head component 3 begin to rotate forward.

[0039] To prevent accidental reverse operation of the motor, the motor reverse switch should not be powered on when the machine is rotating forward. Two protective operating modes are provided.

[0040] Mode 1, Reverse Cutting Platform Mode: A first contact switch 1202 is located at the cutting platform clutch handle 1201. When the cutting platform clutch handle 1201 is in the D engaged position, the first contact switch 1202 is triggered. This switch releases a signal to the switch of the reverse motor 507, keeping it in a de-energized state. Even if accidentally activated, it will not operate. In this mode, the reverse motor 507 switch can only be used normally when the cutting platform clutch handle 1201 is in the C disengaged position. When the cutting platform clutch handle 1201 is disengaged, the reverse motor 507 operates, only driving the cutting platform component 3 and the bridge component 4 to reverse.

[0041] Mode 2, whole machine reverse mode, has a second contact switch 1302 at the main clutch handle 1301. When the main clutch handle 1301 is in the D engaged position, the contact switch is triggered. This switch releases a signal to the switch of the reverse motor 507, keeping it in a de-energized state. In this mode, the reverse motor 507 can be switched on and off normally only when the main clutch handle 1301 is in the C disengaged position. When the cutter table clutch handle 1201 is disengaged, the reverse motor 507 runs, only driving the cutter table component 3 and the bridge component 4 to reverse. When the cutter table clutch handle 1201 is engaged, the reverse motor 507 can drive the cutter table component 3, the bridge component 4 and the upper transmission component 10 of the cutter table to rotate in the opposite direction at the same time. This is used in some special cases where other components need to be reversed to clear faults.

Claims

1. A reversing device of a header, comprising a header device (1), characterized in that: One side of the cutting platform equipment (1) is provided with a bridge equipment (2), the cutting platform equipment (1) is provided with a cutting platform component (3), the bridge equipment (2) is provided with a bridge component (4), the cutting platform equipment (1) and the bridge equipment (2) are provided with a reverse control assembly (5), the bridge component (4) is drivingly connected with a cutting platform upper transmission component (10); The reverse control assembly (5) comprises a transmission shaft (501), one end of the transmission shaft (501) is provided with a first pulley (502), the other end of the transmission shaft (501) is provided with a driving sprocket (503), the transmission shaft (501) is provided with a reverse driving part (504) and a meshing linkage part (508); The reverse driving part (504) comprises a meshing sprocket (5041) arranged outside the transmission shaft (501), the meshing sprocket (5041) and the transmission shaft (501) are provided with a rolling bearing (5042), one side of the rolling bearing (5042) is provided with a hole retainer (5043) and a spacer sleeve (5044), one side of the meshing sprocket (5041) is provided with a driving sprocket (505), the driving sprocket (505) and the meshing sprocket (5041) are provided with a chain (506) outside, the driving sprocket (505) is fixedly connected with the output shaft of a reverse motor (507), and the reverse motor (507) is arranged on the cutting platform equipment (1); The outer side of the transmission shaft (501) is symmetrically provided with a mounting bracket (514), the mounting bracket (514) and the transmission shaft (501) are provided with a connecting bearing (513), and the mounting bracket (514) is bolted to the cutting platform equipment (1).

2. A counter-rotation device for a header according to claim 1, characterized in that: The meshing linkage part (508) comprises a meshing sleeve (5081) slidingly arranged outside the transmission shaft (501), the meshing sleeve (5081) is located on the side, away from the driving sprocket (503), of the meshing sprocket (5041), the outer side of the meshing sleeve (5081) is provided with a retainer body (5082) and an axle retainer (5083), and the outer side of the meshing sleeve (5081) is provided with an axial thrust bearing (5084).

3. A counter-rotation device for a header according to claim 2, characterized in that: The outer side of the axial thrust bearing (5084) is provided with a rotary arm (509), the upper and lower ends of the rotary arm (509) are provided with connecting shafts (510), the lower connecting shaft (510) is rotationally connected with a rotary shaft (511), the rotary shaft (511) is fixedly arranged on the cutting platform equipment (1), and the upper connecting shaft (510) is rotationally connected with the output shaft of a pushing motor (512), the pushing motor (512) is fixedly arranged on the cutting platform equipment (1).

4. A counter-rotation device for a header according to claim 1, characterized in that: The driving sprocket (503) and the cutting platform component (3) are provided with a first transmission chain (6) outside, one side of the first transmission chain (6) is provided with a first tensioning mechanism (7), the first pulley (502) and the bridge component (4) are provided with a second transmission belt (8) outside, and one side of the second transmission belt (8) is provided with a second tensioning mechanism (9).

5. A counter-rotation device for a header according to claim 1, characterized in that: The upper transmission part (10) of the header is drivingly connected with an output wheel of an engine (11), a header clutch controller (12) is arranged between the header upper transmission part (10) and a bridge part (4) on a bridge device (2), and a main clutch controller (13) is arranged between the engine (11) and the header upper transmission part (10).

6. A counter-rotation device for a header according to claim 5, characterized in that: The header clutch controller (12) comprises a header clutch handle (1201), which can be connected to a C end and a D end, and the D end is provided with a first contact switch (1202).

7. A counter-rotation device for a header according to claim 5, characterized in that: The main clutch controller (13) comprises a main clutch handle (1301), which can be connected to a C end and a D end, and the D end is provided with a second contact switch (1302).

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