Harvester lifting device, harvester and working method

Abstract

The present invention discloses a harvester lifting device, a harvester and a working method, wherein a harvester lifting device includes an elevator and a dust removal fan, and the transmission mechanism of the elevator and the transmission mechanism of the dust removal fan are connected through a speed change and reversing mechanism; the transmission mechanism of the elevator, the transmission mechanism of the dust removal fan and the speed change and reversing mechanism are all installed on the first side wall of the elevator away from the cab, which improves the safety factor and ensures the safety of the driver; the speed change and reversing mechanism includes a shell, a driving gear, a driving shaft, a driven gear and a driven shaft; the front end of the driven shaft is connected to the transmission mechanism of the elevator; the rear end of the driven shaft is connected to the transmission mechanism of the dust removal fan; the speed change and reversing is realized by the shaft parallel gear transmission inside the box body and setting the gear ratio>1; the transmission layout is simplified, the space occupied by the transmission mechanism is saved, and the overall transmission is simple to implement and easy to maintain.

Description

Technical Field

[0001] The present invention belongs to the technical field of corn harvester equipment, and in particular relates to a harvester lifting device, a harvester and a working method. Background Art

[0002] The corn harvester consists of several major components: a header, an elevator, a peeler, an ear box, etc. The engine on the chassis serves as the power output system, and at the same time carries the coordinated control systems and other mechanisms of the several major components, forming a complete corn harvesting machine.

[0003] As the corn ear transport mechanism, the efficiency of the elevator directly impacts the harvesting performance of the entire machine. To ensure effective peeling and prevent excessive stems and leaves in the corn ears, which can lead to mold, the elevators of medium and large corn harvesters are equipped with a debris removal device to further remove stems and leaves that have not been separated on the cutting table and are mixed with the corn ears.

[0004] Currently, the support frame of the elevator on the market is large in size and complex in structure. The dust removal device and the elevator are only supported by the bracket, which has poor stability. Moreover, the elevator and the dust removal fan use two sets of transmission and reversing systems, which are distributed on both sides of the elevator. Not only is the structure complex, but the dust removal fan transmission system is generally located on the side of the cab, close to the driver, which poses a safety hazard. Summary of the Invention

[0005] In order to solve the above technical problems, the present invention proposes a harvester lifting device and a harvester, which have a stable structure, simple transmission and a high safety factor.

[0006] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0007] A harvester lifting device includes an elevator and a dust removal fan, wherein the dust removal fan is mounted on the elevator housing; further, the transmission mechanism of the elevator and the transmission mechanism of the dust removal fan are connected via a speed change and reversing mechanism; the transmission mechanism of the elevator, the transmission mechanism of the dust removal fan, and the speed change and reversing mechanism are all mounted on a first side wall of the elevator away from a cab; the speed change and reversing mechanism includes:

[0008] A housing is fixed to the first side wall; a cavity is provided inside the housing;

[0009] A transmission unit is arranged in the cavity of the shell; the transmission unit uses parallel axis gear transmission, including a driving gear and a driven gear, a driving shaft and a driven shaft that are meshed with each other; wherein the tooth ratio of the driving gear to the driven gear is greater than 1; one end of the driving shaft is connected to the axis of the driving gear, and the other end extends out of the shell and is connected to the power input sprocket; one end of the driven shaft is connected to the transmission mechanism of the elevator; and the other end is connected to the transmission mechanism of the dust removal fan.

[0010] Furthermore, an anti-collision mechanism is provided at the lower part of the elevator; the anti-collision mechanism includes an anti-collision beam and an anti-collision beam connector; wherein, a long waist hole is provided on the anti-collision beam connector, and the anti-collision beam can be adjusted to the installation position of the anti-collision beam connector through the long waist hole; the anti-collision beam can be detachably installed on the shell of the elevator through the anti-collision beam connector.

[0011] Furthermore, the debris removal fan is installed on the upper surface of the outer shell of the elevator through fasteners on the side close to the cab; the debris removal fan is connected to a mounting bracket on the side away from the cab, and the mounting bracket is fixed on the first side wall of the elevator.

[0012] Furthermore, the driving gear and the driven gear are both cylindrical gears.

[0013] A harvester comprises a chassis, a cab, an engine, a cutting table and a peeling machine, and further comprises the harvester lifting device as described above, wherein the front side of the bottom of the elevator of the harvester lifting device is connected to the cutting table, and the rear side of the bottom is fixedly mounted on the frame of the chassis through a lower connecting seat; the rear side of the upper middle part of the elevator is fixedly mounted on the frame of the peeling machine through an upper connecting seat, and the frame of the chassis is connected to the frame of the peeling machine.

[0014] Furthermore, the peeling machine includes a power transmission mechanism installed on the peeling machine frame; the power transmission mechanism includes a chain transmission unit, and the driving shaft of the harvester lifting device is connected to a sprocket in the chain transmission unit.

[0015] Furthermore, the anti-collision mechanism of the harvester lifting device is installed below the cutting platform.

[0016] A working method of a harvester adopts the harvester as above, further, the power of the engine is transmitted to the power transmission mechanism of the peeling machine; the power enters the speed changing and reversing mechanism through the sprocket in the chain transmission unit in the power transmission mechanism; the speed changing and reversing mechanism reverses and changes the power, and then transmits the power to the transmission mechanism of the elevator and the transmission mechanism of the dust removal fan respectively; the transmission mechanism of the elevator drives the chain palladium to realize the transportation of fruit ears; the transmission mechanism of the dust removal fan drives the dust removal fan to work.

[0017] The beneficial effects of the present invention are:

[0018] First, through the implementation of the above scheme, the transmission mechanism of the elevator and the transmission mechanism of the dust removal fan are both connected to the speed changing and reversing mechanism; the transmission mechanism of the elevator and the transmission mechanism of the dust removal fan are both located on the side wall away from the cab, which improves the safety factor and ensures the safety of the driver; the speed changing and reversing mechanism is transmitted through the parallel gears of the shaft inside the box, and the tooth ratio of the driving gear and the driven gear is greater than 1, thereby realizing speed changing and reversing; at the same time, the transmission mechanism of the elevator and the transmission mechanism of the dust removal fan are respectively connected at both ends of the driven shaft; the transmission layout is simplified, the space occupied by the transmission mechanism is saved, and the overall transmission is simple to implement and easy to maintain.

[0019] Second, an anti-collision mechanism is installed at the bottom of the elevator to ensure the stability of the harvester elevator when used in complex field conditions; to prevent the lower end of the elevator from being too close to the ground, causing it to easily touch the straw and raised parts of the ground, bending or even damaging the elevator.

[0020] Third, the dust removal fan is installed on the upper surface of the elevator's shell using fasteners on the side close to the cab, and is fixed to the first side wall of the elevator on the other side using a mounting bracket. This not only ensures the stable installation of the dust removal fan, but also prevents bumps caused by the protruding mounting structure on one side of the cab, thereby ensuring the safety of the driving space.

[0021] Fourth, the present invention discloses a harvester, which includes a harvester lifting device, the lower end of which is connected to the chassis frame, and the upper end is connected to the peeling machine frame to form a stable triangular mechanism; the support frame is eliminated, making the overall mechanism simple and compact, the connection more stable and reliable, reducing the number of parts and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the structure of the harvester of the present invention;

[0023] Figure 2 It is a schematic diagram of the structure of the speed change reversing mechanism;

[0024] Figure 3 This is a schematic diagram of the connection between the elevator's transmission mechanism, the impurity removal fan's transmission mechanism, and the speed-changing and reversing mechanism;

[0025] Figure 4 It is the structure and installation diagram of the anti-collision mechanism;

[0026] Explanation of symbols:

[0027] 1. Main input pulley, 1-1. Main input chain, 2. Chassis, 3. Elevator, 3-1. Elevator power input sprocket, 3-2. Power transmission chain, 3-3. Elevator driving shaft, 4. Lower connecting seat, 5. Anti-collision mechanism, 5-1. Anti-collision beam, 5-2. Anti-collision beam connector, 6. Cutting platform, 7. Cab, 8. Debris removal fan, 8-1. Debris removal fan power input sprocket, 8-2. Mounting bracket, 8-3. Mounting hole, Debris removal fan driving sprocket 8-4, Debris removal fan chain 8-5, 9. Speed ​​​​reversing mechanism, 9-1. Driving gear, 9-2. Driven gear, 9-3. Driving shaft, 9-4. Housing, 9-5. Driven shaft, 10. Upper connecting seat, 11. Peeler, 11-1, Peeler chain transmission unit sprocket, 12. Speed ​​​​reversing mechanism connecting frame. DETAILED DESCRIPTION

[0028] A specific embodiment of the present invention is described in detail below with reference to the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiment.

[0029] like Figure 1-4 As shown, a harvester lifting device includes an elevator 3, a dust-removing fan 8 and an anti-collision mechanism 5, wherein the transmission mechanism of the elevator 3 and the transmission mechanism of the dust-removing fan 8 are connected through a speed changing and reversing mechanism 9; the transmission mechanism of the elevator 3, the transmission mechanism of the dust-removing fan 8 and the speed changing and reversing mechanism 9 are all installed on the first side wall of the elevator 3 away from the cab 7, which improves the safety factor and ensures the safety of the driver.

[0030] Among them, the speed changing and reversing mechanism 9 includes a shell 9-4, a driving gear 9-1, a driven gear 9-2, a driving shaft 9-3 and a driven shaft 9-5; wherein the shell 9-4 is fixedly connected to the first side wall through a speed changing and reversing mechanism connecting frame 12; a cavity is provided inside the shell 9-4; the driving gear 9-1 is provided in the shell 9-4; the driving shaft 9-3 has its front end extending out of the shell 9-4 and is inserted into the axis of the power input sprocket, and the front end face is fixedly connected to the power input sprocket; its rear end is inserted into the driving gear 9-1, and the rear end face is connected to the shell 9-4; the driving shaft 9-3 is connected to the inner wall of the shell 9-4 through a ball bearing; the driven gear 9-2 is provided in the shell 9-4; the driven gear 9-2 is meshed with the driving gear 9-1 for transmission, and the tooth ratio of the driving gear 9-1 to the driven gear 9-2 is greater than 1, so as to achieve the purpose of speed changing. Preferably, the elevator reaches the ideal speed when working, and the driving gear The wheel 9-1 has 49 teeth, and the driven gear 9-2 has 23 teeth; the driven shaft 9-5, after its front end passes through the axis of the driven gear 9-2, extends out of the shell 9-4 and is connected to the transmission mechanism of the elevator 3; the rear end of the driven shaft 9-5 extends out of the shell 9-4 and is connected to the transmission mechanism of the dust removal fan 8; the driving shaft 9-3 and the driven shaft 9-5 are parallel to each other; the driven shaft 9-5 is connected to the inner wall of the shell 9-4 through a ball bearing; the driving gear 9-1 and the driven gear 9-2 are parallel axis gear transmissions, and preferably, the driving gear 9-1 and the driven gear 9-2 are both cylindrical gears; the speed changing and reversing mechanism is transmitted through the parallel axis gears inside the box body, and the tooth ratio of the driving gear and the driven gear is set to be greater than 1 to realize speed changing and reversing; at the same time, the transmission mechanism of the elevator and the transmission mechanism of the dust removal fan are respectively connected at both ends of the driven shaft; the transmission layout is simplified, the space occupied by the transmission mechanism is saved, and the overall transmission is simple to implement and easy to maintain.

[0031] The anti-collision mechanism 5 is arranged at the lower part of the elevator 3, and includes an anti-collision beam 5-1 and an anti-collision beam connector 5-2; wherein, a long waist hole is opened on the anti-collision beam connector 5-2, and the anti-collision beam 5-1 is installed on the anti-collision beam connector 5-2 using bolts and nuts. Due to the provision of the long waist hole, the installation position of the anti-collision beam 5-1 and the anti-collision beam connector 5-2 can be adjusted as needed; the anti-collision beam 5-1 is detachably installed on the shell of the elevator 3 through the anti-collision beam connector 5-2, and the lower part of the elevator is equipped with an anti-collision mechanism 5 to ensure the stability of the harvester elevator when used in complex field conditions; and prevent the lower end of the elevator from being too close to the ground, which makes it easy to touch the straw and raised parts of the ground, and bend or even damage the elevator.

[0032] The dust removal fan 8 is installed on the upper surface of the shell of the elevator 3 by fasteners on the side close to the cab 7. Preferably, bolts are used for connection. A mounting hole 8-3 is provided on the upper surface of the shell. The dust removal fan 8 is connected to a mounting bracket 8-2 on the side away from the cab 7. The mounting bracket 8-2 is fixed on the first side wall of the elevator 3, which not only ensures the stable installation of the dust removal fan, but also prevents collisions caused by the protrusion of the mounting structure on the side of the cab, thereby ensuring the safety of the driving space.

[0033] The present invention also discloses a harvester, which includes a chassis 2, a cab 7, an engine, a cutting platform 6, a peeling machine 11 and a harvester lifting device, wherein the elevator 3 of the harvester lifting device has a bottom front side connected to the cutting platform 6, and an anti-collision mechanism 5 is installed under the cutting platform; the bottom rear side is fixedly mounted on the frame of the chassis 2 through a lower connecting seat 4; the rear side of the middle and upper part of the elevator 3 is fixedly mounted on the frame of the peeling machine 11 through an upper connecting seat 10, and the frame of the chassis 2 is connected to the frame of the peeling machine 11; the three form a stable triangular mechanism, eliminating the support frame, making the overall mechanism simple and compact, the connection more stable and reliable, reducing the number of parts and components, and reducing costs.

[0034] The front end of the driving shaft 9-3 of the harvester lifting device is connected to the peeling machine 11; the peeling machine 11 includes a power transmission mechanism, which is installed on the frame of the peeling machine 11; the power transmission mechanism includes a chain transmission unit, and the driving shaft 9-3 is connected to the peeling machine chain transmission unit sprocket 11-1, that is, the power input sprocket is the peeling machine chain transmission unit sprocket 11-1.

[0035] During operation, the main input pulley 1 is connected to the engine to transmit the power of the engine to each transmission mechanism. A first shaft is inserted into the main input pulley 1, and a sprocket is also installed on the first shaft. The sprocket is connected to the power transmission mechanism of the peeling machine 11 through the main input chain 1-1; through the peeling machine chain transmission unit sprocket 11-1 in the power transmission mechanism, the power enters the speed change reversing mechanism 9, which is transmitted to the transmission mechanism of the elevator 3 and the transmission mechanism of the dust removal fan 8 respectively after the speed change reversing transmission of the driving gear 9-1 and the driven gear 9-2; Among them, the transmission mechanism of the elevator 3 includes the elevator power input sprocket 3-1 connected to the driven shaft 9-5, The power transmission chain 3-2 and the elevator driving shaft 3-3; wherein, the elevator driving shaft 3-3 is provided with the elevator driving sprocket, which forms a chain transmission with the elevator power input sprocket 3-1 through the power transmission chain 3-2, and the elevator driving shaft 3-3 drives the chain palladium to realize the transportation of the fruit ears; the transmission mechanism of the dust-removing fan 8, comprises a dust-removing fan power input sprocket 8-1 connected to the driven shaft 9-5, a dust-removing fan chain 8-2 and a dust-removing fan driving sprocket 8-3; wherein, the dust-removing fan power input sprocket 8-1 and the dust-removing fan driving sprocket 8-3 form a chain transmission through the dust-removing fan chain 8-2, and the dust-removing fan driving sprocket 8-3 drives the dust-removing fan to work.

[0036] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by persons of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A harvester lifting device, comprising an elevator and a dust removal fan, wherein the dust removal fan is mounted on the elevator housing; characterized in that: The transmission mechanism of the elevator and the transmission mechanism of the dust removal fan are connected through a speed change reversing mechanism; the transmission mechanism of the elevator, the transmission mechanism of the dust removal fan and the speed change reversing mechanism are all installed on the first side wall of the elevator away from the cab; the speed change reversing mechanism includes: a shell, which is fixed to the first side wall; a cavity is provided inside the shell; a transmission unit is provided in the cavity of the shell; the transmission unit uses parallel axis gear transmission, including a driving gear and a driven gear, a driving shaft and a driven shaft that are meshed with each other; wherein the gear ratio of the driving gear to the driven gear is greater than 1; one end of the driving shaft is connected to the axis of the driving gear, and the other end extends out of the shell and is connected to the power transmission The sprocket is connected; one end of the driven shaft is connected to the transmission mechanism of the elevator; the other end is connected to the transmission mechanism of the dust-removing fan; an anti-collision mechanism is provided at the lower part of the elevator; the anti-collision mechanism includes an anti-collision beam and an anti-collision beam connecting piece; wherein, a long waist hole is provided on the anti-collision beam connecting piece, and the anti-collision beam can be adjusted to the installation position of the anti-collision beam connecting piece through the long waist hole; the anti-collision beam can be detachably mounted on the shell of the elevator through the anti-collision beam connecting piece; the dust-removing fan is mounted on the upper surface of the outer shell of the elevator by fasteners on the side close to the cab; the dust-removing fan is connected to a mounting bracket on the side away from the cab, and the mounting bracket is fixed on the first side wall of the elevator.

2. The harvester lifting device according to claim 1, characterized in that: The driving gear and the driven gear are both cylindrical gears.

3. A harvester comprising a chassis, a cab, an engine, a header and a peeler, characterized in that: It also includes the harvester lifting device as described in claim 1, wherein the front side of the bottom of the elevator of the harvester lifting device is connected to the cutting platform, and the rear side of the bottom is fixedly installed on the frame of the chassis through a lower connecting seat; the rear side of the upper and middle part of the elevator is fixedly installed on the frame of the peeling machine through an upper connecting seat, and the frame of the chassis is connected to the frame of the peeling machine.

4. The harvester according to claim 3, characterized in that The peeling machine includes a power transmission mechanism installed on the frame of the peeling machine; the power transmission mechanism includes a chain transmission unit, and the driving shaft of the harvester lifting device is connected to a sprocket in the chain transmission unit.

5. The harvester according to claim 3, characterized in that: The anti-collision mechanism of the harvester lifting device is installed below the cutting platform.

6. A harvester operation method, using the harvester according to claim 4, characterized in that: The power of the engine is transmitted to the power transmission mechanism of the peeling machine; the power enters the speed changing and reversing mechanism through the sprocket in the chain transmission unit in the power transmission mechanism; the speed changing and reversing mechanism reverses and changes the power, and then transmits the power to the transmission mechanism of the elevator and the transmission mechanism of the dust removal fan respectively; the transmission mechanism of the elevator drives the chain palladium to realize the transportation of the fruit ears; the transmission mechanism of the dust removal fan drives the dust removal fan to work.

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