Multifunctional conveying device and harvester with large feeding volume

Abstract

The utility model discloses a multifunctional conveying device with large feeding amount and a harvester, belonging to the technical field of conveying device of harvester, including a cutting table, an upper shield, a feeding acceleration roller, a material blocking plate, a roller mounting seat, a guide cover, a threshing roller, a feeding inlet, a frame, a stone collecting trough, a lifting oil cylinder and a conveying device, wherein the conveying device is installed between the cutting table and the frame, the front end of the conveying device is connected to the cutting table through a bridge hanging device, the rear end of the conveying device is installed in the hanging seat at the front end of the frame using an internal floating conveying mechanism, one end of the lifting oil cylinder is installed at the bottom of the front end of the conveying device, and the other end is installed on the frame. The utility model can be applicable to the conveying needs of harvesters with large feeding amount, and can meet the conveying needs of different crops.

Description

Technical Field

[0001] The utility model relates to the technical field of harvester conveying devices, in particular to a large-feeding-volume multifunctional conveying device and a harvester. Background Art

[0002] With the rapid development of modern agriculture, the yield of crops has been increasing, and the agricultural production and management model is also developing towards large-scale farms. In order to improve harvesting efficiency, harvesting machinery is also developing towards large-scale and modularization. The harvester conveyor device is an intermediate conveyor device connecting the cutting table and the threshing device. Its function is to transport the crops harvested by the cutting table to the threshing device. The basic requirement for it is that it can meet the conveying capacity required by the design, and there will be no blockage when the feed volume increases abnormally within a certain range. Previously, the mainstream harvesting machinery in the market was mainly small and medium-sized harvesting machinery. The conveying device matched with it has a relatively simple structure, weak conveying capacity, and lacks speed change and reversing functions. Due to its structural limitations, the conveying device cannot be used with different harvesting cutting tables to meet the needs of conveying different crops.

[0003] In the process of harvesting machinery developing towards large-scale and modularization, there are two basic problems. First, large-scale machinery is often equipped with a wider cutting table, and the width of some cutting tables can reach more than 6 meters, which means that the machine has a larger feed volume, which requires the conveying device to have a stronger conveying capacity. The conveying device is the first link for the harvesting table to transport the harvested crops backward. Insufficient conveying capacity or blockage has a great impact on the subsequent threshing and cleaning work, and the wide cutting table is more likely to touch the bottom when harvesting on uneven plots, thereby damaging the cutting table; second, when using modular design, the conveying device must be equipped with various adjustment mechanisms. When the conveying device works with the cutting table for harvesting different crops, the parameters of each mechanism can be adjusted quickly and conveniently to meet the transportation requirements of different crops, so that the transportation efficiency of the conveying device is always in the high-efficiency transportation range. Utility Model Content

[0004] In view of this, the utility model aims at the deficiencies of the prior art and provides a multifunctional conveying device with a large feeding amount and a harvester.

[0005] In order to solve the above technical problems, the technical solution adopted by the utility model is: a multifunctional conveying device with a large feeding volume, comprising a shell, a bridge hanging device is arranged on the front side of the shell, a cutting table quick locking device is arranged on the lower side of the bridge hanging device, an internal floating conveying mechanism is arranged in the shell, a chain rake conveying mechanism is arranged on the internal floating conveying mechanism, the chain rake conveying mechanism is connected with the transmission mechanism, and a feeding plate quick locking mechanism is arranged on the lower side of the shell.

[0006] Furthermore, the bridge hanging device includes a bridge gantry, a bridge floating frame, a horizontal tilt adjustment mechanism, a ground angle adjustment mechanism and a left and right tilt angle detection mechanism. One side of the bridge gantry is connected to the bridge floating frame, the horizontal tilt adjustment mechanism is arranged on the upper side of the bridge gantry, the ground angle adjustment mechanism is arranged on the lower side, and the left and right tilt angle detection mechanism is arranged on the right side and / or the right side.

[0007] Furthermore, the cutting table quick locking device includes a main body, a swinging part, a rotating part, a transmission part, a first locking pin, a second locking pin and a pull wire. The first locking pin and the second locking pin are respectively arranged on both sides of the main body. A rotating part is arranged on the main body. The transmission part is connected to the pull wire. One side of the rotating part is connected to the transmission part, and the other side is connected to the swinging part. The swinging part is connected to the first locking pin, and the transmission part is connected to the second locking pin.

[0008] Furthermore, the internal floating conveying mechanism includes a chain rake support frame, a floating support, a chain rake drive sprocket, a floating seat connecting pipe, a conveying chain rake main drive shaft and a bearing seat. The chain rake support frame is connected to the floating support, and a chain tensioning mechanism is arranged at the connection. The two floating supports are connected by a floating seat connecting pipe. The conveying chain rake main drive shaft is arranged between the two floating supports through the bearing seat. Multiple chain rake drive sprockets are arranged on the conveying chain rake main drive shaft, and a conveying gap adjustment mechanism is arranged on the front side of the chain rake support frame.

[0009] Furthermore, the chain tensioning mechanism includes a hexagonal flange nut, a compression spring, an L-shaped support plate, a movable bolt, a hexagonal head bolt, a sleeve shaft and a waist-shaped inner sleeve. Sleeve shafts are arranged on both sides of the chain rake support frame. A waist-shaped hole is opened on the floating support, and a waist-shaped inner sleeve is embedded in the waist-shaped hole. The sleeve shaft passes through the waist-shaped inner sleeve and is connected to the hexagonal head bolt. An L-shaped support plate is arranged on the outside of the floating support. The movable bolt connected to the hexagonal head bolt passes through the L-shaped support plate, a compression spring is arranged, and the end is connected to the hexagonal flange nut.

[0010] Furthermore, the chain rake support frame includes a front crossbeam, a front crossbeam side plate, an upper support plate, a rear crossbeam, a rear crossbeam side plate, a lower support plate, a support plate fixing plate, an adjustment support seat, a floating feed roller support and a floating feed roller. A plurality of connecting structures composed of an upper support plate, a lower support plate and a support plate fixing plate are arranged between the front crossbeam and the rear crossbeam. Front crossbeam side plates are arranged on both sides of the front crossbeam, and rear crossbeam side plates are arranged on both sides of the rear crossbeam. Adjustment support seats and floating feed roller supports are arranged on both front crossbeam side plates, and the floating feed roller is installed between the two floating feed roller supports.

[0011] Furthermore, the conveying gap adjustment mechanism includes a floating feed roller upper limit seat, an elliptical pad and a gap adjustment handle. The floating feed roller upper limit seat is fixedly arranged on the inner side of the shell side wall, and the elliptical pad and the gap adjustment handle are connected to the inner and outer sides of the shell side wall by bolts.

[0012] Furthermore, the chain rake conveying mechanism includes a short chain rake, a long chain rake and a chain, two rows of short chain rakes and one row of long chain rakes are staggered on the four chains, and the chain is connected to the chain rake transmission sprocket; the transmission mechanism includes an infinitely variable speed driving pulley, a tensioning pulley, a transmission belt, a spline shaft, an infinitely variable speed driven pulley arranged on one side of the shell, and a transmission sprocket, a primary tensioning sprocket, a secondary tensioning sprocket, an upper supporting chain plate, a lower supporting chain plate, a transmission chain, a chain plate support frame and a safety clutch sprocket arranged on the other side of the shell, and an infinitely variable speed driven pulley and a transmission sprocket are respectively arranged at both ends of the spline shaft, the infinitely variable speed driving pulley, the tensioning pulley, and the infinitely variable speed driven pulley are connected by a transmission belt, the transmission sprocket, the primary tensioning sprocket, the secondary tensioning sprocket, and the safety clutch sprocket are connected by a transmission chain, and the safety clutch sprocket drives the main transmission shaft of the conveying chain rake to rotate.

[0013] Furthermore, the feeding plate quick locking mechanism includes an arc-shaped feeding plate, a cylindrical supporting beam, a supporting seat, a V-shaped connecting plate, a hanging plate, a U-shaped mounting seat, a pull ring pin, a triangular connecting plate and an adjusting handle. A cylindrical supporting beam is arranged on the side of the arc-shaped feeding plate, both ends of the cylindrical supporting beam are connected to the V-shaped connecting plate through the supporting seat, a hanging plate is arranged on the outer side of the V-shaped connecting plate, the end of the V-shaped connecting plate is connected to the U-shaped mounting seat, the U-shaped mounting seat is connected to the adjusting handle through the triangular connecting plate, one end of the triangular connecting plate is connected to the bottom of the shell, and a pull ring pin is arranged on the other end.

[0014] A harvester comprises a cutting table, an upper guard, a feeding acceleration roller, a material baffle, a roller mounting seat, a guide cover, a threshing roller, a feeding port, a frame, a stone collecting trough, a lifting cylinder and the multifunctional conveying device with a large feeding amount as described above, wherein the conveying device is installed between the cutting table and the frame, the front end of the conveying device is connected to the cutting table through a bridge hanging device, the rear end of the conveying device is installed in the hanging seat at the front end of the frame using an internal floating conveying mechanism, and one end of the lifting cylinder is installed at the bottom of the front end of the conveying device, and the other end is installed on the frame.

[0015] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0016] The utility model discloses a multifunctional conveying device with large feeding amount, utilizes a chain tensioning mechanism to ensure that the chain is in the best working state, utilizes a conveying gap adjusting mechanism to adjust different conveying gaps to meet different conveying requirements of different crops for conveying gaps, utilizes the floating feeding roller to float and sink within the floating range to realize the change of the size of the conveying working chamber, thereby better adapting to the conveying requirements of different feeding amounts to reduce the occurrence of blockage.

[0017] The utility model adopts stepless speed change to keep the conveying device in a high-efficiency and low-consumption working state, and changes the conveying direction to spit back materials to solve the blockage problem; uses a profiling mechanism to adjust the inclination angle of the cutting table, so as to improve the efficiency of harvesting operations in complex working environments; uses a cutting table quick locking device to achieve quick locking when the cutting table is hung, shortens the transfer operation time, and improves the reliability of the hanging of the cutting table and the conveying device; uses a feeding plate quick locking mechanism to ensure reliable sealing of the connection between the conveying device and the main machine and quick maintenance when a fault occurs, and realizes efficient grabbing of crops at the feeding port of the conveying device and uniform transportation during the conveying process through four rows of chains and long and short chain rakes staggered on the chains.

[0018] The large-feed-volume multifunctional conveying device and harvester provided by the utility model can meet the needs of a large-feed-volume harvester for completing the smooth conveying of crops entering the conveying device. When used in combination with different cutting tables, the optimal operating parameters can be conveniently and quickly adjusted. The cutting table and the conveying device can realize a profiling function after being combined, thereby improving the working adaptability of the whole machine. The large-feed-volume multifunctional conveying device and harvester are well adapted to the current development direction of large-scale and modular harvesters, and have good application prospects. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the structure of Embodiment 1 of the present utility model;

[0020] Figure 2 It is a cross-sectional view of Example 1 of the utility model;

[0021] Figure 3 It is a structural schematic diagram of the bridge hooking device in Embodiment 1 of the utility model;

[0022] Figure 4 It is a left-leaning schematic diagram of the bridge-crossing hook device in Embodiment 1 of the present utility model;

[0023] Figure 5 This is a right-leaning schematic diagram of the bridge-crossing hook device in Embodiment 1 of the utility model;

[0024] Figure 6 This is a forward-leaning schematic diagram of the bridge-crossing hooking device in Embodiment 1 of the present utility model;

[0025] Figure 7 This is a schematic diagram of the rearward tilt of the bridge hook device in Embodiment 1 of the utility model;

[0026] Figure 8 It is a structural schematic diagram of the cutting platform quick locking device in Embodiment 1 of the utility model;

[0027] Fig. 9 It is a schematic diagram of the header quick locking device in the first embodiment of the utility model in an unlocked state;

[0028] Fig.10 It is a schematic diagram of the cutting platform quick locking device in the embodiment 1 of the utility model in a locked state;

[0029] Fig.11 It is a structural schematic diagram of the internal floating conveying mechanism in Example 1 of the utility model;

[0030] Fig.12 This is a schematic diagram of the structure of the chain rake support frame in Embodiment 1 of the present utility model;

[0031] Fig.13 It is a structural schematic diagram of the conveying gap adjustment mechanism in Embodiment 1 of the present utility model;

[0032] Fig.14 It is a structural schematic diagram of the chain rake conveying mechanism in Embodiment 1 of the present utility model;

[0033] Fig.15 It is a right side view of the transmission mechanism in Embodiment 1 of the present utility model;

[0034] Fig.16 It is a left side view of the transmission mechanism in Embodiment 1 of the present utility model;

[0035] Fig.17 It is a structural schematic diagram of the feeding plate quick locking mechanism in Embodiment 1 of the present utility model;

[0036] Fig.18 It is a structural schematic diagram of Embodiment 2 of the present utility model;

[0037] Fig.19 It is a top view of the installation position of the header and the conveying device in Embodiment 2 of the present utility model;

[0038] Fig. 20 This is a rear view of the installation position of the header and the conveying device in Embodiment 2 of the present utility model;

[0039] Fig.21 It is a left side view of the feeding acceleration roller in Embodiment 2 of the present utility model;

[0040] Fig. 22 It is a cross-sectional view of the feeding acceleration roller in Example 2 of the utility model. DETAILED DESCRIPTION

[0041] In order to make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution of the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings of the embodiment of the utility model. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments. Based on the described embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field belong to the scope of protection of the utility model.

[0042] Example 1

[0043] Reference Figure 1 , Figure 2 A multifunctional conveying device with large feeding volume includes a shell 14, a bridge hanging device 13 is arranged on the front side of the shell 14, a cutting table quick locking device 18 is arranged on the lower side of the bridge hanging device 13, an internal floating conveying mechanism 15 is arranged in the shell 14, a chain rake conveying mechanism 19 is arranged on the internal floating conveying mechanism 15, the chain rake conveying mechanism 19 is connected with the transmission mechanism 16, and a feeding plate quick locking mechanism 20 is arranged on the lower side of the shell 14.

[0044] Specifically, refer to Figure 3 , Figure 4 , Figure 5 , Figure 6 , Figure 7 The bridge hanging device includes a bridge gantry 79, a bridge floating frame 80, a horizontal tilt adjustment mechanism 81, a ground angle adjustment mechanism 84 and a left and right tilt angle detection mechanism 85. One side of the bridge gantry 79 is connected to the bridge floating frame 80. The horizontal tilt adjustment mechanism 81 is arranged on the upper side of the bridge gantry 79, the ground angle adjustment mechanism 84 is arranged on the lower side, and the left and right tilt angle detection mechanism 85 is arranged on the right side and / or the right side. The bridge gantry 79 is provided with a front and rear rotating pin shaft 82, and the bridge floating frame 80 is provided with a left and right rotating pin shaft 83.

[0045] The horizontal tilt adjustment mechanism, the ground angle adjustment mechanism, and the left and right tilt angle detection mechanism adopt the structure of a harvester cutting table hanging adjustment device disclosed in announcement number CN219165162 U. The horizontal tilt adjustment mechanism adopts the structure of the horizontal adjustment mechanism, the ground angle adjustment mechanism adopts the structure of the ground angle adjustment mechanism, and the left and right tilt angle detection mechanism includes a central processing unit and an angle sensor.

[0046] Reference Figure 8 , Fig. 9 , Fig.10 The cutting platform quick locking device includes a main body 87, a swinging member 88, a rotating member 89, a transmission member 90, a first locking pin 86, a second locking pin 91 and a pull wire 92. The first locking pin 86 and the second locking pin 91 are respectively arranged on both sides of the main body 87. The rotating member 89 is arranged on the main body 87. The rotating member 89 is connected to the pull wire 92. One side of the rotating member 89 is connected to the transmission member 90, and the other side is connected to the swinging member 88. The swinging member 88 is connected to the first locking pin 86, and the transmission member 90 is connected to the second locking pin 91.

[0047] Reference Fig.11The internal floating conveying mechanism includes a chain rake support frame 35, a floating support 43, a chain rake driving sprocket 44, a floating seat connecting pipe 45, a conveying chain rake main transmission shaft 46 and a bearing seat 47. The chain rake support frame 35 is connected to the floating support 43, and a chain tensioning mechanism is arranged at the connection. The two floating supports 43 are connected by the floating seat connecting pipe 45. The conveying chain rake main transmission shaft 46 is arranged between the two floating supports 43 through the bearing seat 47. A plurality of chain rake driving sprockets 44 are arranged on the conveying chain rake main transmission shaft 46. A conveying gap adjustment mechanism 34 is arranged on the front side of the chain rake support frame 35;

[0048] The chain tensioning mechanism includes a hexagonal flange nut 36, a compression spring 37, an L-shaped support plate 38, a movable bolt 39, a hexagonal head bolt 40, a sleeve shaft 41 and a waist-shaped inner sleeve 42. Sleeve shafts 41 are arranged on both sides of the chain rake support frame 35. A waist-shaped hole is opened on the floating support 43, and a waist-shaped inner sleeve 42 is embedded in the waist-shaped hole. The sleeve shaft 41 passes through the waist-shaped inner sleeve 42 and is connected to the hexagonal head bolt 40. An L-shaped support plate 38 is arranged on the outside of the floating support 43. The movable bolt 39 connected to the hexagonal head bolt 40 passes through the L-shaped support plate 38, is sleeved with a compression spring 37, and the end is connected to the hexagonal flange nut 36.

[0049] Reference Fig.12 The chain rake support frame includes a front crossbeam 48, a front crossbeam side plate 49, an upper support plate 50, a rear crossbeam 52, a rear crossbeam side plate 53, a lower support plate 55, a support plate fixing plate 56, an adjustment support seat 57, a floating feeding roller support 58 and a floating feeding roller 59. A plurality of connection structures consisting of an upper support plate 50, a lower support plate 55 and a support plate fixing plate 56 are arranged between the front crossbeam 48 and the rear crossbeam 52. Front crossbeam side plates 49 are arranged on both sides of the front crossbeam 48, and rear crossbeam side plates 53 are arranged on both sides of the rear crossbeam 52. Adjustable support seats 57 and floating feeding roller supports 58 are arranged on both front crossbeam side plates 49. The floating feeding roller 59 is installed between the two floating feeding roller supports 58. A support frame reinforcing rib 51 is arranged on the support plate fixing plate 56, and a support frame triangular rib 54 is arranged at the connection between the two ends of the rear crossbeam 52 and the support plate fixing plate 56.

[0050] Reference Fig.13 The conveying gap adjustment mechanism includes a floating feeding roller upper limit seat 60, an elliptical pad 65 and a gap adjustment handle 62. The floating feeding roller upper limit seat 60 is fixedly arranged on the inner side of the shell side wall 61, and the elliptical pad 65 and the gap adjustment handle 62 are connected to the inner and outer sides of the shell side wall 61 by bolts 64.

[0051] Reference Fig.14 The chain rake conveying mechanism includes a short chain rake 66, a long chain rake 67 and a chain 68. Two rows of short chain rakes 66 and one row of long chain rakes 67 are staggered and fixed on the four chains 68. The chain 68 is connected to the chain rake transmission sprocket.

[0052] Reference Fig.15 , Fig.16 The transmission mechanism includes a stepless speed regulation driving pulley 21, a tensioning pulley 22, a transmission belt 23, a spline shaft 24, and a stepless speed regulation driven pulley 25 arranged on one side of the shell, and a transmission sprocket 26, a primary tensioning sprocket 27, a secondary tensioning sprocket 28, an upper supporting chain plate 29, a lower supporting chain plate 30, a transmission chain 31, a chain plate support frame 32 and a safety clutch sprocket 33 arranged on the other side of the shell. The stepless speed regulation driven pulley 25 and the transmission sprocket 26 are respectively arranged at both ends of the spline shaft 24. The stepless speed regulation driving pulley 21, the tensioning pulley 22, and the stepless speed regulation driven pulley 25 are connected through the transmission belt 23. The transmission sprocket 26, the primary tensioning sprocket 27, the secondary tensioning sprocket 28, and the safety clutch sprocket 33 are connected through the transmission chain 31. The safety clutch sprocket 33 drives the main transmission shaft of the conveyor chain rake to rotate.

[0053] Reference Fig.17 The feeding plate quick locking mechanism includes an arc-shaped feeding plate 69, a cylindrical supporting beam 70, a supporting seat 71, a V-shaped connecting plate 72, a hanging plate 73, a U-shaped mounting seat 74, a pull ring pin 75, a triangular connecting plate 76 and an adjusting handle 77. A cylindrical supporting beam 70 is arranged on the side of the arc-shaped feeding plate 69. Both ends of the cylindrical supporting beam 70 are connected to the V-shaped connecting plate 72 through the supporting seat 71. A hanging plate 73 is arranged on the outside of the V-shaped connecting plate 72. The end of the V-shaped connecting plate 72 is connected to the U-shaped mounting seat 74. The inside of the U-shaped mounting seat 74 is connected to the adjusting handle 77 through a triangular connecting plate 76. One end of the triangular connecting plate 76 is connected to the reinforcing rib 78 at the bottom of the shell, and a pull ring pin 75 is arranged on the other end.

[0054] Example 2

[0055] Reference Fig.18 , Fig.19 , Fig. 20 A harvester includes a cutting table 1, an upper shield 3, a feeding acceleration roller 4, a material blocking plate 5, a roller mounting seat 6, a guide cover 7, a threshing roller 8, a feeding port 9, a frame 10, a stone collecting trough 11, a lifting cylinder 12 and a multifunctional conveying device 2 with a large feeding amount of embodiment 1, wherein the conveying device 2 is installed between the cutting table 1 and the frame 10, the front end of the conveying device 2 is connected to the cutting table 1 through a bridge hanging device 13, the rear end of the conveying device 2 is installed in the hanging seat at the front end of the frame 10 using an internal floating conveying mechanism 15, and one end of the lifting cylinder 12 is installed at the bottom of the front end of the conveying device 2, and the other end is installed on the frame 10. The conveying device 2 is connected to the cutting table drive shaft 93 of the cutting table 1 for transmission.

[0056] Reference Fig.21 , Fig. 22The feeding acceleration roller includes a fixed shaft 101, a pulley 102, a support hub 100, a wear-resistant gear plate 97, and a mounting seat plate 94. The fixed shaft 101 is connected to the roller surface through multiple support hubs 100, and multiple wear-resistant gear plates 97 are arranged on the roller surface. The mounting seat plate 94 is fixed to the roller surface through hexagonal head fixing bolts 99, and the reinforcing plate 96 is installed on the mounting seat plate 94 through round head fixing bolts.

[0057] The working principle and workflow of this utility model:

[0058] During operation, the power is first transmitted from the engine to the main clutch of the conveying device through the transmission shaft. After the main clutch of the conveying device is engaged, the power is transmitted to the stepless speed regulation driving pulley 21 of the conveying device through the belt drive. The stepless speed regulation driving pulley 21 drives the stepless speed regulation driven pulley 25 to rotate through the belt drive. The stepless speed regulation driven pulley 25 drives the spline shaft 24 to rotate. The spline shaft 24 is connected to the cutting table drive shaft 93 at both ends through a universal joint to transmit the power to the cutting table 1. At the same time, the other end of the spline shaft 24 opposite to the stepless speed regulation driven pulley 25 is equipped with a transmission sprocket 26. The transmission sprocket 26 rotates with the spline shaft 24. The transmission sprocket 26 transmits the power to the safety clutch sprocket 33 through the transmission chain 31. The safety clutch sprocket 33 drives the conveying chain rake main transmission shaft 46 to rotate, and the conveying chain rake main transmission shaft 46 drives the chain rake transmission sprocket thereon 44 rotates, and the chain rake transmission sprocket 44 drives the chain 68 and the short chain rake 66 and the long chain rake 67 assembled on the chain to rotate respectively; when the crop reaches the front feeding port of the conveying device from the cutting platform 1, the chain rake located at one end of the floating feeding roller 59 grabs the crop transported by the cutting platform auger to the front feeding port of the conveying device, and then the chain rake pushes the crop to move backward in the conveying working chamber inside the conveying device to reach the discharge port of the conveying device. The crop arriving at the discharge port of the conveying device is grabbed by the feeding acceleration roller 4 and accelerated to the threshing drum 8. Then, in the upper and lower closed spaces composed of the upper guard 3, the baffle plate 5, the guide cover 7 at the upper part of the threshing drum 8 and the arc-shaped feeding plate 69, the stone collecting trough 11 and the feeding port 9 at the lower part of the threshing drum 8, the crop continues to move backward by the conveying action of the threshing drum 8 to complete the threshing work in the threshing drum.

[0059] Before harvesting in the field, the present invention can adjust various mechanisms according to different harvested crops to maximize the working efficiency of the device. The chain tensioning mechanism 17 is installed at the connection between the rear crossbeam 52 of the support frame and the floating support 43. If the chain is too tight, the chain will break when the resistance of the chain rake increases during the conveying process. If the chain is too loose, the power transmission loss rate will be high, and even the chain will fall off and damage the machine. The tension of the compression spring 37 can be adjusted by tightening or loosening the hexagonal flange nut 36. The change in the tension of the compression spring causes the distance that the sleeve shaft 41 moves left and right in the waist-shaped inner sleeve 42 to change, thereby changing the front and rear movement distance of the chain rake support frame 35. As the front and rear movement distance of the chain rake support frame 35 changes, the chain 68 mounted thereon will be tightened and relaxed accordingly. When the cutting platform is hung, the cutting platform quick locking device 18 realizes one-touch locking of the cutting platform and the conveying device through the pull-wire switch integrated in the cutting platform electro-hydraulic quick connection device, thereby ensuring the connection strength between the cutting platform and the conveying device; the cutting platform quick locking device 18 is installed at the bottom of the bridge hanging device 13, between the bridge gantry 79 and the bridge floating frame 80, and is connected to the bridge floating frame 80 by bolts, and can rotate with the bridge floating frame 80 to ensure that the cutting platform can also be reliably locked with the conveying device during the profiling operation; when combined with the cutting platform electro-hydraulic quick connection device, the pull-wire switch assembled with this device drives the pull wire 92 to tighten, thereby driving the transmission member 90 connected to the pull wire 92 to move to one side, and one end of the transmission member 90 is connected to the second locking pin 91 to extend and lock with the cutting platform locking hole. When the transmission member 90 moves, the other end is connected to the rotating member 89 to rotate and drive the swing member 88 to move, and the swing member 88 drives the first locking pin 86 connected thereto to extend and lock with the cutting platform locking hole. The feeding plate quick locking mechanism 20 is installed at the connection between the rear part of the bottom plate of the conveying device and the main machine. Firstly, it ensures that when the conveying device moves up and down during operation, the connection between the arc-shaped feeding plate and the conveying device can always remain relatively sealed to prevent grain leakage; secondly, when blockage occurs at the arc-shaped feeding plate 69, the opening size of the feeding plate can be quickly adjusted to facilitate the cleaning of the blockage; when used for the first time, the adjustment handle 77 is rotated to drive the cylindrical support beam 70 to move to a suitable angle toward or away from the conveying device, so that the cylindrical support beam 70 can reliably support the arc-shaped feeding plate 69, and then the V-shaped connecting plate 72 and the hanging plate 73 are fixed together with bolts to prevent the V-shaped connecting plate 72 from rotating, and finally the pull ring pin 75 is inserted into the locking hole position of the triangular connecting plate 76 to limit the movement of the adjustment handle 77.The conveying gap adjustment mechanism 34 is located at the floating feeding roller 59 at the front end of the chain rake support frame 35. Because this conveying device can be hung with a harvesting table for different crops, different crops have different requirements for the conveying gap of the conveying device. If the conveying gap is too large, the chain rake's ability to grab crops will be reduced, and the conveying capacity will be weakened. If the conveying gap is too small, the chain rake will cause squeezing damage to the crops during transportation, and even blockage will occur. The gap adjustment handle 62 is turned, and the elliptical pad 65 connected to it rotates accordingly. After the elliptical pad 65 rotates, the contact working surface with the support frame adjustment support seat 57 changes, and then the distance between the elliptical pad 65 and the floating feeding roller upper limit seat 60 changes, and the floating feeding roller 59 assembled on the floating feeding roller support 58 The up and down movement range of the floating feeding roller 59 is also changed accordingly. The final result is that the conveying gap between the conveying chain rake and the bottom plate of the conveying device changes.

[0060] During the operation of the machine, the feed amount changes in real time with the change of vehicle speed and the change of crop yield in different harvesting areas. At this time, the floating feed roller 59 can float and sink in the conveying cavity with the sleeve shafts 41 on the left and right sides as the fulcrums as the crop feed amount changes within the upper and lower floating range. When the feed amount increases, the thickness of the crop layer increases and the floating feed roller 59 is lifted upward. The floating feed roller 59 floats, that is, the conveying working cavity between the conveying chain rake and the bottom plate of the conveying device increases, and the conveying capacity is enhanced. Otherwise, it returns to the standard conveying working cavity. When harvesting different crops, such as wheat, corn or soybeans, the conveying device requires different conveying speeds. The reciprocating motion of the hydraulic cylinder is used to change the working gap of the stepless speed regulating driving pulley 21, thereby changing the transmission ratio between the main and driven pulleys to achieve the purpose of changing the conveying speed; when the material is blocked during the conveying process of the conveying device, the reversing device at the stepless speed regulating driven pulley 25 realizes reverse power transmission, so that the conveying device is reversed to realize material spitting and solve the blockage fault. During the reversal of the conveying device, the driver presses the reverse button of the conveying device in the cab, and the hydraulic actuator at the stepless speed regulation driven pulley 25 starts to work, and uses the hydraulic thrust to push the reversing gear to be coupled to the transmission system. At this time, the rotation direction of the stepless speed regulation driven pulley 25 remains unchanged, but the rotation direction transmitted to the spline shaft 24 changes. The reverse rotation of the spline shaft 24 drives the drive sprocket 26 thereon to rotate in the opposite direction, and the drive sprocket 26 drives the safety clutch sprocket 33 to rotate in the opposite direction through the transmission chain 31. The safety clutch sprocket 33 drives the main drive shaft 46 of the conveyor chain rake to reverse, and the main drive shaft 46 of the conveyor chain rake drives the conveyor chain rake to rotate in the opposite direction through the sprocket chain, thereby achieving the effect of reverse conveying. When the ground is uneven during harvesting in the field, the horizontal tilt angle of the cutting platform is adjusted by the horizontal tilt adjustment mechanism 81 installed on the bridge hanging device 13 to prevent the cutting platform from touching the ground and causing damage. One end of the horizontal tilt adjustment mechanism 81 is connected to the bridge gantry 79, and the other end is connected to the bridge floating frame 80. The driver presses the horizontal tilt adjustment button in the cab, the actuator works, and the bridge floating frame 80 rotates around the left and right rotating pins 83 relative to the bridge gantry 79, thereby driving the cutting platform hung thereon to rotate so that the cutting platform The platform performs contour-matching operations; the ground angle adjustment mechanism 84 can change the inclination angle of the bridge gantry 79 to the ground, and then the ground angle of the bridge floating frame 80 connected to the bridge gantry 79 and its cutting table 1 will also change accordingly. When performing harvesting operations, the cutting angle of the cutting table can be changed. One end of the ground angle adjustment mechanism 84 is connected to the conveying device housing 14, and the other end is connected to the bridge gantry 79. When the ground angle adjustment mechanism 84 is operated, the bridge gantry 79 rotates around the front and rear rotating pins 82 relative to the conveying device housing 14.

[0061] Through repeated experiments, it is proved that the chain tensioning mechanism is used to ensure that the chain is in the best working state, the conveying gap adjustment mechanism is used to adjust different conveying gaps to meet the different conveying requirements of different crops for conveying gaps, and the floating feeding roller is used to float and sink within the floating range to change the size of the conveying working chamber, so as to better adapt to the conveying requirements of different feed amounts to reduce the occurrence of blockage; the conveying speed of the conveying device is realized by electro-hydraulic control to ensure that the conveying device is always in a high-efficiency and low-consumption working state, and the conveying direction is changed to solve the blockage problem by spitting back the material; the tilt angle of the header is adjusted by the profiling mechanism to improve the efficiency of harvesting operations in complex working environments; the header quick locking device is used to achieve quick locking when the header is mounted, shortening the transfer operation time and improving the reliability of the mounting of the header and the conveying device; the feeding plate quick locking mechanism is used to ensure reliable sealing at the connection between the conveying device and the main machine and quick maintenance in the event of a fault, and the four-row chain and the long and short chain rakes staggered on the chain are used to achieve efficient grabbing of crops at the feeding port of the conveying device and uniform transportation during the conveying process. The large-feed-volume multifunctional conveying device and harvester provided by the present invention can meet the needs of a large-feed-volume harvester for completing the smooth conveying of crops entering the conveying device. When used in combination with different cutting tables, the optimal operating parameters can be conveniently and quickly adjusted. After the cutting table and the conveying device are combined, the profiling function can be realized, thereby improving the working adaptability of the entire machine. The large-feed-volume multifunctional conveying device and harvester are well adapted to the current development direction of large-scale and modular harvesters, and have good application prospects.

[0062] The above is a preferred embodiment of the present invention. It should be pointed out that, for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A multifunctional conveying device with a large feeding volume, comprising a housing, characterized in that: A bridge hanging device is arranged on the front side of the shell, a cutting platform quick locking device is arranged on the lower side of the bridge hanging device, an internal floating conveying mechanism is arranged in the shell, a chain rake conveying mechanism is arranged on the internal floating conveying mechanism, the chain rake conveying mechanism is connected with the transmission mechanism, and a feeding plate quick locking mechanism is arranged on the lower side of the shell.

2. The multifunctional conveying device with large feeding amount according to claim 1 is characterized in that: The bridge hanging device includes a bridge gantry, a bridge floating frame, a horizontal tilt adjustment mechanism, a ground angle adjustment mechanism and a left and right tilt angle detection mechanism. One side of the bridge gantry is connected to the bridge floating frame, the upper side of the bridge gantry is provided with a horizontal tilt adjustment mechanism, the lower side is provided with a ground angle adjustment mechanism, and the right side and / or the right side are provided with a left and right tilt angle detection mechanism.

3. The multifunctional conveying device with large feeding amount according to claim 1 is characterized in that: The cutting table quick locking device includes a main body, a swinging part, a rotating part, a transmission part, a first locking pin, a second locking pin and a pull wire. The first locking pin and the second locking pin are respectively arranged on both sides of the main body. The rotating part is arranged on the main body. The transmission part is connected with the pull wire. One side of the rotating part is connected with the transmission part, and the other side is connected with the swinging part. The swinging part is connected with the first locking pin, and the transmission part is connected with the second locking pin.

4. The multifunctional conveying device with large feeding amount according to claim 1 is characterized in that: The internal floating conveying mechanism includes a chain rake support frame, a floating support, a chain rake drive sprocket, a floating seat connecting pipe, a conveying chain rake main drive shaft and a bearing seat. The chain rake support frame is connected to the floating support, and a chain tensioning mechanism is arranged at the connection. The two floating supports are connected by a floating seat connecting pipe. The conveying chain rake main drive shaft is arranged between the two floating supports through the bearing seat. Multiple chain rake drive sprockets are arranged on the conveying chain rake main drive shaft, and a conveying gap adjustment mechanism is arranged on the front side of the chain rake support frame.

5. The multifunctional conveying device with large feeding amount according to claim 4 is characterized in that: The chain tensioning mechanism includes a hexagonal flange nut, a compression spring, an L-shaped support plate, a movable bolt, a hexagonal head bolt, a sleeve shaft and a waist-shaped inner sleeve. Sleeve shafts are arranged on both sides of the chain rake support frame, a waist-shaped hole is opened on the floating support, a waist-shaped inner sleeve is embedded in the waist-shaped hole, the sleeve shaft passes through the waist-shaped inner sleeve and is connected to the hexagonal head bolt. An L-shaped support plate is arranged on the outside of the floating support, and the movable bolt connected to the hexagonal head bolt passes through the L-shaped support plate, is sleeved with a compression spring, and the end is connected to the hexagonal flange nut.

6. The multifunctional conveying device with large feeding amount according to claim 4 is characterized in that: The chain rake support frame includes a front crossbeam, a front crossbeam side plate, an upper support plate, a rear crossbeam, a rear crossbeam side plate, a lower support plate, a support plate fixing plate, an adjustment support seat, a floating feed roller support and a floating feed roller. A plurality of connection structures consisting of an upper support plate, a lower support plate and a support plate fixing plate are arranged between the front crossbeam and the rear crossbeam. Front crossbeam side plates are arranged on both sides of the front crossbeam, and rear crossbeam side plates are arranged on both sides of the rear crossbeam. Adjustment support seats and floating feed roller supports are arranged on both front crossbeam side plates, and the floating feed roller is installed between the two floating feed roller supports.

7. The multifunctional conveying device with large feeding amount according to claim 6 is characterized in that: The conveying gap adjustment mechanism includes a floating feed roller upper limit seat, an elliptical pad and a gap adjustment handle. The floating feed roller upper limit seat is fixedly arranged on the inner side of the shell side wall, and the elliptical pad and the gap adjustment handle are connected to the inner and outer sides of the shell side wall by bolts.

8. The multifunctional conveying device with large feeding amount according to claim 4 is characterized in that: The chain rake conveying mechanism includes a short chain rake, a long chain rake and a chain. Two rows of short chain rakes and one row of long chain rakes are staggered and fixed on the four chains, and the chain is connected to the chain rake transmission sprocket; the transmission mechanism includes an infinitely speed regulating driving pulley, a tensioning pulley, a transmission belt, a spline shaft, and an infinitely speed regulating driven pulley arranged on one side of the shell, and a transmission sprocket, a primary tensioning sprocket, a secondary tensioning sprocket, an upper supporting chain plate, a lower supporting chain plate, a transmission chain, a chain plate support frame and a safety clutch sprocket arranged on the other side of the shell, and an infinitely speed regulating driven pulley and a transmission sprocket are respectively arranged at both ends of the spline shaft. The infinitely speed regulating driving pulley, the tensioning pulley and the infinitely speed regulating driven pulley are connected through a transmission belt, and the transmission sprocket, the primary tensioning sprocket, the secondary tensioning sprocket and the safety clutch sprocket are connected through a transmission chain, and the safety clutch sprocket drives the main transmission shaft of the conveying chain rake to rotate.

9. The multifunctional conveying device with large feeding amount according to claim 1, characterized in that: The feeding plate quick locking mechanism includes an arc-shaped feeding plate, a cylindrical supporting beam, a supporting seat, a V-shaped connecting plate, a hanging plate, a U-shaped mounting seat, a pull ring pin, a triangular connecting plate and an adjusting handle. A cylindrical supporting beam is arranged on the side of the arc-shaped feeding plate. Both ends of the cylindrical supporting beam are connected to the V-shaped connecting plate through the supporting seat. A hanging plate is arranged on the outer side of the V-shaped connecting plate. The end of the V-shaped connecting plate is connected to the U-shaped mounting seat. The adjusting handle is connected to the U-shaped mounting seat through a triangular connecting plate. One end of the triangular connecting plate is connected to the bottom of the shell body, and a pull ring pin is arranged on the other end.

10. A harvester, characterized in that: It includes a cutting table, an upper guard, a feeding acceleration roller, a material baffle, a roller mounting seat, a guide cover, a threshing roller, a feeding port, a frame, a stone collecting trough, a lifting cylinder and a large feeding amount multifunctional conveying device as described in any one of claims 1 to 9, the conveying device is installed between the cutting table and the frame, the front end of the conveying device is connected to the cutting table through a bridge hanging device, the rear end of the conveying device is installed in the hanging seat at the front end of the frame using an internal floating conveying mechanism, and one end of the lifting cylinder is installed at the bottom of the front end of the conveying device, and the other end is installed on the frame.

Images