Chain link adjustment device, crop lifting adjustment device and automatic profiling device

Abstract

The present application relates to the technical field of agricultural machinery, and specifically relates to a chain link adjustment device, a crop lifting adjustment device and an automatic profiling device. Provided in the present application is a chain link adjustment device, comprising a frame, wherein the frame is provided with a fixing portion, sliding rails are provided on the fixing portion, different sprockets are respectively mounted on one side of different sliding rails, the inner side of a chain ring is engaged with the sprockets, and a first sprocket and a second sprocket can slide relative to the sliding rails so as to change the shape of the chain ring. Moreover, further provided in the present application is a crop lifting adjustment device, comprising chain disk frames, wherein the chain disk frames are slidably connected to pivotal legs of a central hanger, and after the chain disk frames are driven to unfold by the pivotal legs, the two chain disk frames can move away from each other, so as to further increase the width of a header. Further provided in the present application is an automatic profiling device. A profiling structure fits against the ground and drives a detection housing to swing along with the change in the ground, thereby adjusting the height of a header assembly, improving the operation efficiency, reducing the labor intensity, and ensuring the operation quality.

Description

A chain link adjusting device, a straw adjusting device and an automatic profiling device

[0001] This application claims priority to the Chinese patent application No. 202421266940.0, filed on June 5, 2024, and entitled "Silage harvester automatic profiling device", the content of which is incorporated herein by reference in its entirety.

[0002] This application claims priority to the Chinese patent application No. 202410895378.6, filed on July 5, 2024, and entitled "Silage harvester with adaptive straw adjusting device", the content of which is incorporated herein by reference in its entirety.

[0003] This application claims priority to the Chinese patent application No. 202520800184.3, filed on April 24, 2025, and entitled "Silage harvester", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0004] The present application relates to the technical field of agricultural machinery, in particular to a chain link adjusting device, a straw adjusting device and an automatic profiling device. BACKGROUND

[0005] In the working process of a silage harvester, a series of processes such as harvesting, feeding, chopping, seed breaking and throwing of silage materials are involved. The header device is the first link of the material flow. Its main function is to use high-speed rotating blades to cut off the silage crops from the ground roots within the harvesting width range, and then send the cut silage crops to the feeding and compacting device of the silage harvester, so that they can be uniformly compressed for subsequent chopping, seed breaking, throwing and loading processes. The header device is one of the key components of the silage harvester, and its performance directly affects the harvesting efficiency, chopping quality and silage quality of the silage harvester.

[0006] The silage header is divided into row and non-row according to the relationship with the crop rows. The row header has two types of stem conveying methods, namely, wave-shaped rubber belt and straw chain. The non-row header is divided into disc type and chain knife type according to the cutting method. The disc type and chain knife type headers have wide applicability and low agronomic requirements, and therefore dominate the market. The width of the domestic disc or chain knife type header is initially concentrated in the range below 1.8 meters and 2-3 meters. Later, with the adjustment of the planting mode in the north, the silage harvester develops towards wider width, such as 3 meters and 4.5 meters, and the header can be operated after being connected to the power of the main machine.

[0007] The current silage header has a fixed width and cannot be adjusted. Changing the width requires disassembling the existing header, replacing it with a different specification, which is time-consuming and requires the provision of multiple specifications of headers, significantly increasing the cost. SUMMARY

[0008] To solve the problems involved in the above background art, the present application provides a chain adjusting device, which comprises a rack, the rack having a fixed part, the fixed part being provided with sliding rails in both a first direction and a second direction, a first sprocket and a second sprocket being respectively mounted on one side of different sliding rails,

[0009] a chain ring, the inner side of the chain ring being engaged with the first sprocket and the second sprocket, the first sprocket and the second sprocket being capable of sliding relative to the sliding rails to change the shape of the chain ring.

[0010] According to an embodiment provided by the present application, the rack further comprises a mounting seat, the mounting seat being arranged on the side away from the second sprocket and being connected with the fixed part, a driving sprocket being arranged on the mounting seat, the driving sprocket being connected with the mounting seat through a gear box, and the driving sprocket being engaged with the chain ring.

[0011] According to an embodiment provided by the present application, a nut shaft is arranged in the middle part of each of the first sprocket and the second sprocket, the bottom part of the nut shaft having a sliding block with a threaded hole arranged in the middle part, the sliding block being matched with the sliding rail, a lead screw being arranged in each sliding rail, and the lead screw being connected with a driving motor through the threaded hole.

[0012] According to an embodiment provided by the present application, the rack further comprises an adjusting part, the adjusting part being arranged on the side of the fixed part close to the second sprocket, and the adjusting part being capable of adjusting along the second direction relative to the fixed part to adapt to the change of the shape of the chain ring.

[0013] According to an embodiment provided by the present application, the adjusting part has a plurality of guide shafts, the guide shafts extending along the second direction, the guide shafts being provided with a plurality of through holes, and some of the through holes being connected with the fixed part through bolts.

[0014] According to an embodiment provided by the present application, the chain ring comprises a plurality of chain links, each chain link comprising a welding unit, a first shaft body, the side of the welding unit away from the first shaft body being provided with a cylindrical sleeve, the cylindrical sleeve being capable of mounting the first shaft body of another chain link, and the part of the first shaft body exposed outside the cylindrical sleeve being clamped in the clamping groove of the sprocket.

[0015] According to an embodiment provided by the present application, the chain ring further comprises a first cutter body, the first cutter body being arranged on one side of the welding unit and being connected with the welding unit through bolts.

[0016] According to an embodiment provided by the present application, the welding unit further comprises a cover plate and a push piece, the cover plate being arranged on the side of the first shaft body away from the first cutter body, and the push piece being arranged in the middle part of the welding unit.

[0017] According to an embodiment provided by the application, the tool changing assembly comprises a second tool body and a third tool body, and the second tool body and the third tool body are both mounted on the outer side of the rack, the second tool body is arranged on the side away from the second sprocket, and the third tool body is arranged on the side close to the second sprocket.

[0018] According to an embodiment provided by the application, the rack is arranged on one side of the first hanger, and the rack is symmetrically arranged on both sides of the first hanger.

[0019] The application further provides a supporting and adjusting device for a plow, which comprises a first hanger, the first hanger is used for being connected with a main machine, the first hanger comprises a first hanger welding and a turning supporting leg, the first hanger welding is connected with the mirror-symmetrical turning supporting leg on the left and right sides respectively, so that the turning supporting leg can realize a turning motion of 0° to 90° relative to the first hanger welding.

[0020] The chain disc rack is arranged on the two turning supporting legs of the first hanger, and the chain disc rack is in sliding fit with the turning supporting leg, so that the two chain disc racks can slide towards or away from each other.

[0021] The supporting and adjusting device for the plow is arranged on the chain disc rack, and the supporting and adjusting device for the plow comprises a supporting device for guiding crops and a sliding block device for driving the supporting device to switch between a raised state and a fallen state, the supporting device is perpendicular to the chain disc rack in the raised state, and the supporting device is parallel to the chain disc rack in the fallen state; the sliding block device is connected with the chain disc rack in linkage, so that when the two chain disc racks move towards each other, the sliding block device drives the supporting device to switch to the fallen state, and when the two chain disc racks move away from each other, the sliding block device drives the supporting device to switch to the raised state.

[0022] The sliding block device comprises a bottom plate seat, a sliding track and a traction rod, the bottom plate seat is fixedly connected with the chain disc rack sliding seat, the bottom plate seat is hingedly connected with a joint bearing one through a pin shaft, the sliding track is slidingly connected with a sliding rod bearing, the sliding rod bearing is connected with the supporting device through a connecting rod, the traction rod is connected with the joint bearing one and the sliding rod bearing at two ends respectively, the bottom plate seat moves along with the chain disc rack sliding seat, thereby driving the traction rod to move, and further driving the supporting device to rise or fall through the connecting rod; the connecting rod comprises a Y-shaped joint, a screw rod and a joint bearing two, one end of the screw rod is threadedly connected with the Y-shaped joint, and the other end is threadedly connected with the joint bearing two, the joint bearing two is fixedly connected with the sliding rod bearing, and the supporting device is provided with a special-shaped pin which is hingedly assembled with the Y-shaped joint; the special-shaped pin is in a columnar shape, a hole is formed in the middle part of the special-shaped pin, and the two sides of the column are flattened to be hingedly matched with the Y-shaped joint; the special-shaped pin is arranged on the supporting device, one end of the special-shaped pin is provided with a protrusion, and the other end is provided with a split pin through a pin hole, so as to limit the axial movement of the special-shaped pin.

[0023] According to an embodiment provided by the application, the chain disc frame comprises a chain disc frame welding and a first and second support frame mounting and two guide rod mountings fixed on the chain disc frame welding, and a guide rod is fixed between the two guide rod mountings; the chain disc frame sliding seat is in sliding fit with the guide rod along the length direction of the guide rod, and the support frame is provided with a first support frame welding connected with the first support frame mounting and a second support frame welding connected with the second support frame mounting.

[0024] According to an embodiment provided by the application, the traction rod comprises a connecting rod and a guide rail welding, the guide rail welding is a hollow structure, one end of the connecting rod is connected with the sliding rod bearing, the other end is slidingly inserted into the guide rail welding, one end of the connecting rod in the guide rail welding is fixed with a thrust pin, a pin hole is formed on the guide rail welding for the thrust pin to pass through, a first and second thrust ring are arranged on the guide rail welding, the first thrust ring is fixed on the end of the guide rail welding, the second thrust ring is slidingly sleeved on the guide rail welding, a spring is arranged between the first and second thrust rings, and the first thrust ring is abutted against the thrust pin under the action of the spring.

[0025] According to an embodiment provided by the application, the support frame comprises a first and second support frame welding, and uniform distribution of square holes are formed on the first and second support frame welding, and the overall height of the support frame is adjusted by inserting locking bolts into different square holes; a heavy pipe clamp body is fixed on the first and second support frame welding respectively, and the first support frame welding is hingedly connected with the heavy pipe clamp body, so that the first support frame welding can rotate around the heavy pipe clamp body.

[0026] According to an embodiment provided by the application, the first support frame welding comprises a first support plate, a first support rod and a second support plate, the first support rod is fixedly connected with the first support plate at both ends, and the second support plate is fixed on the first support rod, and a stop ring is arranged on the first support rod for limiting.

[0027] According to an embodiment provided by the application, the second support frame welding comprises a second support rod, a support plate and a support rod fixedly connected, the square holes are uniformly distributed on the support plate and are bolted and assembled with the first support frame welding, and the second support rod and the support rod are matched with the material flow track by being bent and formed.

[0028] According to an embodiment provided by the application, a rubber pad one is arranged on the first support plate, and a rubber pad two is arranged on the second support plate.

[0029] According to an embodiment provided by the application, the application further provides an automatic profiling device, a plurality of detection main bodies are arranged on the first hanger, the detection main body comprises a detection shell, a profiling structure used for abutting against the ground and swinging relative to the detection shell with the change of the ground and hinged to the lower end of the detection shell, a flexible structure used for fixing the maximum distance between the free end of the profiling structure and the detection shell and connected to the free end of the profiling structure and the detection shell respectively, a profiling sensor arranged in the detection shell, and a joint bearing assembly used for transmitting the angle change amount of the profiling structure swinging relative to the detection shell to the profiling sensor and connected to the end of the profiling structure close to the detection shell and the profiling sensor respectively.

[0030] According to an embodiment provided by the application, the joint bearing assembly comprises a force transmission rod, a first joint bearing sleeved on the first end of the force transmission rod and connected to the end of the profiling structure close to the detection shell, a second joint bearing sleeved on the second end of the force transmission rod, and a swinging arm connected to the second joint bearing and the profiling sensor respectively.

[0031] According to an embodiment provided by the application, the first joint bearing is threadedly connected to the force transmission rod, and the second joint bearing can also be threadedly connected to the force transmission rod.

[0032] According to an embodiment provided by the application, the profiling structure comprises a profiling arm, a connecting plate arranged on the free end of the profiling arm and connected to the flexible structure, a profiling clamp connected to the end of the profiling arm close to the detection shell, a profiling support connected to the profiling clamp and hinged to the detection shell, and a rocker arm connected to the profiling support and the first joint bearing respectively.

[0033] According to an embodiment provided by the application, the detection main body further comprises a profiling pin arranged on the detection shell and hinged to the profiling support, and a fixing plate connected to the profiling pin and the detection shell and used for preventing the relative rotation of the profiling pin and the detection shell.

[0034] According to an embodiment provided by the application, the flexible structure comprises a connecting belt, a first adjuster arranged on the first end of the connecting belt and connected to the free end of the profiling structure, and a second adjuster arranged on the second end of the connecting belt and connected to the detection shell.

[0035] According to an embodiment provided by the application, the detection shell is provided with a profiling cavity accommodating the profiling sensor, and a cover plate detachably arranged on the side wall of the detection shell and used for closing the profiling cavity.

[0036] According to an embodiment provided by the present application, the detecting main body further comprises a rowing assembly, the rowing assembly comprising a rowing side plate arranged in a horizontal direction, a sensor clamping plate rotatably arranged on the detecting shell and connected with the rowing side plate, a rowing sensor arranged on the detecting shell and having a sensing end connected with the sensor clamping plate, a reset mounting plate arranged in the detecting shell and kept at a preset interval from an end of the sensor clamping plate away from the rowing side plate, and an elastic reset member connected with the end of the sensor clamping plate away from the rowing side plate and the reset mounting plate respectively.

[0037] According to an embodiment provided by the present application, the detecting main body further comprises a rowing assembly, the rowing assembly comprising a rowing side plate arranged in a horizontal direction, a sensor clamping plate rotatably arranged on the detecting shell and connected with the rowing side plate, a rowing sensor arranged on the detecting shell and having a sensing end connected with the sensor clamping plate, a reset mounting plate arranged in the detecting shell and kept at a preset interval from an end of the sensor clamping plate away from the rowing side plate, and an elastic reset member connected with the end of the sensor clamping plate away from the rowing side plate and the reset mounting plate respectively.

[0038] A silage machine comprises the chain link adjusting device as described above, or the rower adjusting device as described above, or the automatic profiling device as described above.

[0039] Compared with the prior art, the significant technical progress of the present application is that the first direction and the second direction of the rack fixing part are provided with sliding rails, the first sprocket and the second sprocket are installed on one side of the different sliding rails, and the first sprocket and the second sprocket can slide relative to the sliding rails. This makes the sliding of the sprocket change the shape of the chain ring when the inner side of the chain ring is engaged with the sprocket. The shape of the chain ring can be flexibly adjusted, and the adaptability of the header device to different working scenes is enhanced. The chain disc rack is slidably connected with the turnover legs of the central hanging rack, and after the chain disc rack is unfolded under the driving of the turnover legs, the two chain disc racks can move away from each other to further increase the width of the header. By arranging the detecting main body on the header assembly, the detecting main body is hingedly connected with the profiling structure through the detecting shell, and the profiling sensor is installed in the detecting shell. The joint bearing assembly is connected with the end of the profiling structure close to the detecting shell and the profiling sensor, respectively. When the header assembly is working, the profiling structure is attached to the ground and swings relative to the detecting shell as the ground changes, thereby adjusting the height of the header assembly, so as to realize automatic profiling, improve working efficiency, reduce labor intensity and ensure working quality. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0041] FIG. 1 is a structural schematic view of a full-width state of a header device provided by an embodiment of the present application;

[0042] Fig. 2 is a structural schematic diagram of a cutting platform device in a folding state according to an embodiment of the present application;

[0043] Fig. 3 is a structural schematic diagram of a connection between a rack and a chain wheel according to an embodiment of the present application;

[0044] Fig. 4 is a structural schematic diagram of a chain ring according to an embodiment of the present application;

[0045] Fig. 5 is a structural schematic diagram of a chain link according to an embodiment of the present application;

[0046] Fig. 6 is a structural schematic diagram of a rack according to an embodiment of the present application;

[0047] Fig. 7 is a structural schematic diagram of an adjusting part according to an embodiment of the present application;

[0048] Fig. 8 is a structural schematic diagram of a nut shaft according to an embodiment of the present application;

[0049] Fig. 9 is a schematic diagram of a cutting platform of a straw adjusting device in a straw lifting state according to an embodiment of the present application;

[0050] Fig. 10 is a top view of a cutting platform of a straw adjusting device in a straw falling state according to an embodiment of the present application;

[0051] Fig. 11 is a schematic diagram of a cutting platform of a straw adjusting device in a chain disc rack folding state according to an embodiment of the present application;

[0052] Fig. 12 is a structural schematic diagram of a first hanging rack according to an embodiment of the present application;

[0053] Fig. 13 is a structural schematic diagram of a chain disc rack according to an embodiment of the present application;

[0054] Fig. 14 is a structural schematic diagram of a straw adjusting device according to an embodiment of the present application;

[0055] Fig. 15 is a structural schematic diagram of a straw adjusting device from another perspective according to an embodiment of the present application;

[0056] Fig. 16 is a structural schematic diagram of a straw lifting device according to an embodiment of the present application;

[0057] Fig. 17 is a structural schematic diagram of a straw lifting device according to an embodiment of the present application;

[0058] Fig. 18 is a structural schematic diagram of a sliding block device according to an embodiment of the present application;

[0059] Fig. 19 is a structural schematic diagram of a Y-shaped joint according to an embodiment of the present application;

[0060] Fig. 20 is a structural schematic diagram of a guide rail welding according to an embodiment of the present application;

[0061] Fig. 21 is a structural schematic diagram of a special-shaped pin provided by an embodiment of the present application;

[0062] Fig. 22 is a sectional view of a sliding block device provided by an embodiment of the present application;

[0063] Fig. 23 is a structural schematic diagram of a profiling part in a supporting and adjusting device provided by an embodiment of the present application;

[0064] Fig. 24 is a structural schematic diagram of another perspective view of Fig. 23;

[0065] Fig. 25 is a structural schematic diagram of a lower connecting part in Fig. 23;

[0066] Fig. 26 is a structural schematic diagram of a profiling structure provided by an embodiment of the present application;

[0067] Fig. 27 is a structural schematic diagram of a joint bearing assembly provided by an embodiment of the present application;

[0068] Fig. 28 is a structural schematic diagram of a connecting part of a profiling sensor provided by an embodiment of the present application;

[0069] Fig. 29 is a structural schematic diagram of a part of a row assembly provided by an embodiment of the present application.

[0070] Explanation of reference numerals: 1-first hanger; 11-first hanger weld; 12-flip leg; 13-chain disc rack sliding seat; 2-chain disc rack; 21-governor mounting seat one; 22-governor mounting seat two; 23-guide rod mounting seat; 24-guide rod; 25-governor sliding rail mounting frame; 26-pressing plate; 27-chain disc rack weld; 200-probing shell; 201-rack; 202-fixed part; 203-mounting seat; 204-adjusting part; 210-profiling pin; 220-fixed plate; 230-profiling cavity; 240-cover plate; 250-pairing cavity; 260-passing cavity; 270-first mounting plate; 280-second mounting plate; 3-governor device; 31-governor; 33-sliding block device; 300-profiling structure; 301-driving sprocket; 302-first sprocket; 303-second sprocket; 310-connection plate; 311-governor weld one; 3111-governor plate one; 3112-governor rod one; 3113-stop ring; 3114-governor plate two; 312-governor weld two; 3122-governor plate; 3123-governor rod; 313-governor weld seat one; 314-governor weld seat two; 315-governor anti-collision plate; 316-governor special-shaped pin; 317-heavy pipe clamp body; 318-roller chain; 319-hose; 320-profiling arm; 321-rubber pad one; 322-rubber pad two; 330-profiling clamp plate; 331-bottom plate seat; 332-knuckle bearing one; 333-locking nut; 334-guide rail weld; 335-thrust pin; 336-thrust ring one; 337-connection rod; 338-Y-shaped joint; 339-screw rod; 340-profiling support; 341-knuckle bearing two; 342-sliding rod pin shaft; 343-sliding rod bearing; 344-sliding rail; 345-spring; 350-rocker arm; 4-chain link; 400-flexible structure; 401-weld unit; 402-first shaft body; 403-first cutter body; 410-first adjuster; 420-connection belt; 430-second adjuster; 500-profiling sensor; 501-gear box; 502-driving motor; 503-screw rod; 6-tool changing assembly; 600-knuckle bearing assembly; 601-second cutter body; 602-third cutter body; 610-first knuckle bearing; 620-force transmission rod; 630-second knuckle bearing; 640-swinging arm; 7-sliding rail; 700-pairing assembly; 710-pairing side plate; 720-sensor clamp plate; 730-elastic return member; 740-return mounting plate; 750-pairing sensor; 8-nut shaft; 800-dividing governor; 900-adjusting member.

[0071] The specific embodiments of the present application have been shown and described by the above drawings, and will be described in more detail hereinafter. These drawings and written descriptions are not intended to limit the scope of the concept of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0072] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will clearly and completely describe the technical solutions in the embodiments of the present application with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0073] Firstly, those skilled in the art should understand that the embodiments are only used for explaining the technical principles of the present application, and are not intended to limit the protection scope of the present application. Those skilled in the art can make adjustments according to the needs in order to adapt to specific application occasions.

[0074] Secondly, it should be noted that, in the description of the present application, the terms indicating the direction or position relationship such as "front", "back", "left", "right", "up", "down", "inner", "outer" and the like are based on the direction or position relationship shown in the drawings, which is only for the convenience of description, and does not indicate or imply that the device or member must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0075] In addition, it should be noted that, in the description of the present application, unless otherwise explicitly specified and limited, the terms "connected", "connected" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be the communication inside two members. Those skilled in the art can understand the specific meaning of the above terms in the present application according to the specific circumstances.

[0076] In the description of the present specification, the description referring to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present disclosure. In the present specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0077] During the working process of the silage harvester, a series of processes such as harvesting, feeding, chopping, grain crushing and throwing are involved. The header device is located at the first link of the material flow, and its main function is to cut the silage crops within the harvesting width from the ground with high-speed blades, and then send the cut silage crops to the feeding and compacting device of the silage harvester, so that the silage crops are uniformly compressed, and the subsequent chopping, seed breaking, throwing and loading processes are facilitated. As one of the key components of the silage harvester, the performance of the header device directly affects the harvesting efficiency, chopping quality and silage quality of the silage harvester.

[0078] The silage header is divided into row and non-row according to the relationship with the crop row. The row header has two types of stem conveying ways, namely, the wave-shaped rubber belt and the chain. The non-row header is divided into disc type and chain knife type according to the cutting method. The disc type or chain knife type header has wide applicability and low agronomic requirements, and occupies the market.

[0079] The current silage header has a fixed width and cannot be adjusted. Changing the width requires disassembling the existing header, replacing it with a different specification, which is time-consuming and requires the provision of multiple specifications of the header, greatly increasing the cost.

[0080] To solve the above technical problems, the embodiment of the present application provides a link adjustment device, which comprises a rack 201, the rack 201 has a fixed part 202, the fixed part 202 is provided with sliding rails 7 in the first direction and the second direction, different sliding rails 7 are respectively provided with first sprocket 302 and second sprocket 303 on one side, chain ring 4, the inner side of the chain ring 4 is engaged with the first sprocket 302 and the second sprocket 303, the first sprocket 302 and the second sprocket 303 can slide relative to the sliding rails 7 to change the shape of the chain ring 4.

[0081] It should be noted that the first direction corresponds to the vertical direction of the drawing, and the second direction corresponds to the horizontal direction of the drawing. The sliding rails 7 are arranged in the first direction and the second direction of the fixed part 202 of the rack 201, and the first sprocket 302 and the second sprocket 303 are arranged on one side of different sliding rails 7, and the first sprocket 302 and the second sprocket 303 can slide relative to the sliding rails 7. When the inner side of the chain ring 4 is engaged with the sprocket, the sliding of the sprocket can change the shape of the chain ring 4. The shape of the chain ring 4 can be flexibly adjusted, and the adaptability of the header device to different working scenes is enhanced. When facing different shapes or sizes of crops, the harvesting work can be better completed by adjusting the shape of the chain ring 4, and the harvesting efficiency and quality are improved.

[0082] The shape-variable chain ring 4 can match different work objects or work environments. When encountering uneven terrain, uneven crop distribution, etc., by changing the shape of the chain ring 4, the chain ring 4 is better fitted to the actual situation, ensuring that the cutting device can operate stably and efficiently. The chain ring 4 can adjust the shape according to the change of the terrain to ensure good contact with the ground and smooth harvesting. Since the shape of the chain ring 4 is adjustable, the cutting device can be applied to various types of agricultural harvesting scenes, and is no longer limited to specific working conditions or crop types. Whether it is a large area of plain farmland or a small-scale mountain terrace, whether it is a tall-stalk crop or a short-stalk crop, the cutting device can meet the work requirements by adjusting the shape of the chain ring 4, thereby expanding the application range of the device and improving the universality and practicality of the device.

[0083] According to an embodiment provided by the present application, the rack 201 further comprises a mounting seat 203, the mounting seat 203 is arranged on the side away from the second sprocket 303, and the mounting seat 203 is connected with the fixed part 202. The mounting seat 203 is provided with a driving sprocket 301, the driving sprocket 301 is connected with the mounting seat 203 through a gear box 501, and the driving sprocket 301 is engaged with the chain ring 4.

[0084] It should be noted that the driving sprocket 301 is arranged on the mounting seat 203 of the rack 201, and is connected with the mounting seat 203 through the gear box 501, and the driving sprocket 301 is engaged with the chain ring 4. This structure provides a stable power source for the operation of the chain ring 4. The gear box 501 can adjust and transmit power, so that the driving sprocket 301 drives the chain ring 4 to move at a suitable speed and torque, ensuring that the chain ring 4 moves stably and efficiently during the operation of the cutting device, and meeting the requirements of the actual operation on the operation speed and power of the chain ring 4.

[0085] The driving sprocket 301 is engaged with the chain ring 4 and works with the first sprocket 302 and the second sprocket 303 to maintain the tension and stability of the chain ring 4. During the operation, the driving sprocket 301 can supplement the power required for the movement of the chain ring 4 in time, so that the chain ring 4 always maintains a good transmission state during the shape change and harvesting operation, avoids problems such as chain ring relaxation and jamming, and ensures the normal operation and operation quality of the cutting device.

[0086] According to an embodiment provided by the present application, the middle part of the first sprocket 302 and the second sprocket 303 is provided with a nut shaft 8, the bottom of the nut shaft 8 is provided with a sliding block with a threaded hole in the middle part, the sliding block is matched with a sliding rail 7, each sliding rail 7 is provided with a lead screw 503, and the lead screw passes through the threaded hole and is connected with a driving motor 502.

[0087] It should be noted that the nut shaft 8 inserted in the middle of the first sprocket 302 and the second sprocket 303, the bottom slider cooperates with the slide rail 7, and the lead screw 503 in the slide rail 7 passes through the slider threaded hole and is driven by the driving motor 502. The driving motor 502 can control the rotation of the lead screw 503, and through the cooperation of the lead screw 503 and the slider threaded hole, the rotary motion is converted into linear motion, and then the first sprocket 302 and the second sprocket 303 are accurately driven to slide along the slide rail 7, ensuring the accuracy and stability of the shape adjustment of the chain ring 4.

[0088] The setting of the driving motor 502 realizes the automatic control of the sprocket sliding. The operator only needs to control the start, stop and speed of the driving motor 502 and other parameters, so as to easily realize the change of the shape of the chain ring 4, improve the operation convenience and working efficiency of the cutting platform device, and reduce the labor cost and labor intensity.

[0089] It should be noted that the gear box 501, the driving motor 502 and the lead screw 503 form a driving system, the output end of the gear box 501 is a spline shaft, the driving motor 502 is fixedly installed on the motor mounting seat, one end of the lead screw 503 is a sleeve and the other end is a long section of screw rod, the sleeve in the lead screw 503 is sleeved on the output shaft of the driving motor 502 and is fixed through a plurality of evenly distributed retaining screws, and the lead screw 503 can rotate clockwise or counterclockwise through the forward and reverse driving of the driving motor 502.

[0090] According to an embodiment provided by the application, the rack 201 further comprises an adjusting part 204, which is installed on one side of the fixed part 202 close to the second sprocket 303, and the adjusting part 204 can be adjusted along the second direction relative to the fixed part 202 to adapt to the change of the shape of the chain ring 4.

[0091] According to an embodiment provided by the application, the adjusting part 204 has a plurality of guide shafts, the guide shafts extend along the second direction, the guide shafts are provided with a plurality of through holes, and part of the through holes pass through bolts and are connected with the fixed part 202.

[0092] It should be noted that the adjusting part 204 is installed on one side of the fixed part 202 close to the second sprocket 303 and can be adjusted along the second direction relative to the fixed part 202. When the first sprocket 302 and the second sprocket 303 slide to change the shape of the chain ring 4, the adjusting part 204 adjusts the position accordingly, ensures that the whole device structure is compact, maintains the normal working state of the chain ring 4, avoids structural interference or abnormal work caused by the change of the shape of the chain ring 4, and ensures that the cutting platform device can stably operate under various shapes of the chain ring 4.

[0093] The adjusting part 204 has a plurality of guide shafts extending in the second direction, a plurality of through holes are formed in the guide shafts, and some of the through holes are connected with the fixing part 202 by bolts. According to the actual needs of the shape change of the chain 4, the staff can select different through holes to install the bolts, so as to realize the fixation of the adjusting part 204 at different positions in the second direction, accurately control the relative position relationship between the adjusting part 204 and the chain 4, and further improve the adaptability and the accuracy of the adjustment of the cutting platform device to the shape change of the chain 4.

[0094] The guide shafts not only provide guidance for the adjustment of the adjusting part 204, but also enhance the connection stability between the adjusting part 204 and the fixing part 202. The plurality of guide shafts are uniformly distributed and share various forces received by the adjusting part 204 during work, so that the entire structure can still maintain stability when the adjusting part 204 adapts to the shape change of the chain 4. Even if vibration or external force impact occurs during the operation of the cutting platform device, the adjusting part 204 can be reliably fixed at the appropriate position to ensure the normal operation of the chain 4 and the overall performance of the cutting platform device.

[0095] In addition, it should be noted that the two guide shafts on the adjusting part 204 are inserted into the two guide pipes on the rack main body, and the fixing part 202 and the adjusting part 204 are effectively connected by a plurality of bolts. By pulling the adjusting part 204 and fastening it with bolts, the entire width of the rack 201 can be adjusted to adapt to the change in the width of the chain 4. The adjusting part 204 is welded by an upper plate, an end plate and two guide shafts. The end plate is located on the side of the upper plate, and the end plate is provided with two handle holes to facilitate the operator to adjust the adjusting part 204 relative to the fixing part 202. The two guide shafts are located on the lower surface of the upper plate, and a plurality of round holes are formed in the guide shafts. During the adjustment of the adjusting part 204, the round holes can be matched with the through holes formed in the two guide pipes of the fixing part 202, and then the bolts are inserted and fastened to connect.

[0096] According to an embodiment provided by the application, the chain 4 includes a plurality of chain links, each chain link includes a welding unit 401 and a first shaft body 402. The side of the welding unit 401 away from the first shaft body 402 has a cylindrical sleeve, and the cylindrical sleeve can be installed with the first shaft body 402 of another chain link. The first shaft body 402 exposed outside the cylindrical sleeve is clamped in the clamping groove of the sprocket.

[0097] It should be noted that the chain links are connected through the cooperation of the cylindrical sleeve and the first shaft body 402, so that the chain ring 4 has good flexibility and bendability. This connection mode can not only ensure the smoothness of the relative movement between the chain links, but also can realize the stable transmission function of the chain ring 4 under the driving of the first sprocket 302, the second sprocket 303 and the driving sprocket 301. Whether in the shape change of the chain ring 4 or in the normal operation transmission process, the cooperative work of each chain link can be ensured to efficiently transmit power.

[0098] According to an embodiment provided by the application, the chain ring 4 further comprises a first cutter body 403, which is arranged on one side of the welding unit 401 and connected with the welding unit 401 through bolts.

[0099] It should be noted that the axis distance of the first shaft body 402 in each adjacent two chain links is p, and the cylindrical surface of the first shaft body 402 can be clamped in the cylindrical tooth groove of the driving sprocket 301, the first sprocket 302 and the second sprocket 303. The rotation of the driving sprocket 301 further drives the movement of the chain ring 4, and the first sprocket 302 and the second sprocket 303 also move under the driving of the chain ring 4.

[0100] According to an embodiment provided by the application, the welding unit 401 further comprises a cover plate and a push piece, the cover plate is arranged on the side of the first shaft body 402 away from the first cutter body 403, and the push piece is arranged in the middle of the welding unit 401.

[0101] It should be noted that the cover plate is arranged on the side of the first shaft body 402 away from the first cutter body 403, which protects the first shaft body 402. During the operation of the cutting platform device, it can prevent sundries from entering the connection between the first shaft body 402 and the cylindrical sleeve, reduce wear and tear, and prolong the service life of the first shaft body 402 and the chain link. At the same time, the cover plate can also help to enhance the stability of the overall structure of the chain link, so that the chain ring is more reliable when running. The push piece is arranged in the middle of the welding unit 401, which can push and arrange the cut crops during the operation of the chain ring. On the one hand, it can help to separate the cut crops from the cutting area in time, so as to avoid the accumulation affecting the subsequent cutting operation; on the other hand, it can help to guide the crops to be conveyed in the predetermined direction, so as to improve the continuity and efficiency of the harvesting operation.

[0102] According to an embodiment provided by the application, the welding unit 401 further comprises a cover plate and a push piece, the cover plate is arranged on the side of the first shaft body 402 away from the first cutter body 403, and the push piece is arranged in the middle of the welding unit 401.

[0103] It should be noted that in the header device of the embodiment of the present application, the knife changing assembly 6 comprises a second knife body 601 and a third knife body 602, which belong to different tool groups. When the header device is adjusted in width, the second knife body 601 does not need to be disassembled and replaced, and is always installed on the frame 201. The third knife body 602 needs to be replaced with a fixed knife that matches the width of the header device.

[0104] It should be further noted that the knife changing assembly 6 is fixedly installed on the frame 201 by bolts, which greatly facilitates the disassembly, replacement and adjustment operation of the fixed knife. In actual operation, all the first knife bodies 403 on the chain 4 and all the fixed knives in the knife changing assembly 6 cooperate to cut, and they cooperate with each other to achieve rapid cutting of crop straw and effectively improve the working efficiency of the header device.

[0105] According to an embodiment provided by the present application, the first hanging frame 1 is provided with the frame 201 on one side, and the frame 201 is connected to the first hanging frame 1 by bolts.

[0106] It should be noted that the first hanging frame 1 is a left-right symmetrical structure and is located at the middle and rear of the whole device. The frame 201, the sprocket, the chain 4, the knife changing assembly 6 and the like have left and right parts and are mirror-symmetrically distributed. The rear of the first hanging frame 1 is hung with the feeding device of the silage harvester, thereby realizing the mounting, power input and harvesting operation of the main machine and the header device.

[0107] The application also provides a support adjustment device. The support adjustment device is an alternative to the link adjustment device described above. The first hanger 1 remains unchanged, and the components hung on both sides are replaced to achieve the purpose of adjusting the cutting width of the header. The support adjustment device includes a first hanger 1 for connecting with the main machine. The first hanger 1 includes a first hanger weldment 11 and a flip leg 12. The first hanger weldment 11 is connected with the mirror-symmetrical flip leg 12 on the left and right respectively, so that the flip leg 12 can realize a flip movement of 0° to 90° relative to the first hanger weldment 11. In this solution, the first hanger 1 serves as a connection hinge between the header and the main machine. The first hanger 1 is responsible for transmitting power and control signals from the main machine to the header, while supporting the mechanical structure of the header. The first hanger weldment 11 provides the basis for the structure and is the main part connecting other components. The flip leg 12 is designed to realize a flip movement from 0° to 90°, which allows the header to change from a working state to a transport state. The movement of the flip leg 12 is driven by hydraulic or electric power provided by the main machine and operated by a control system. The chain disc rack sliding seat is installed on the flip leg 12 to provide support and guidance for the chain disc rack 2. The flip leg 12 and the first hanger weldment 11 are usually made of high-strength steel to withstand heavy loads and avoid deformation under severe agricultural operating conditions. The connection point of the flip leg 12 and the first hanger weldment 11 is designed to withstand multidirectional forces and is usually hinged or connected in other rotatable ways to allow flip movement. The movement of the flip leg 12 can be controlled by a hydraulic system or an electric motor, which is usually controlled by the control system of the main machine. The control system may include sensors to monitor the position and movement status of the flip leg 12 to ensure movement within the preset limits and prevent mechanical damage. Referring to FIGS. 19 and 20, the chain disc rack 2 is provided with two groups and is symmetrically distributed on the two flip legs 12 of the first hanger 1. The chain disc rack 2 is in sliding fit with the flip leg 12, so that the two chain disc racks 2 can slide towards or away from each other. The sliding fit mechanism allows the two chain disc racks 2 to move towards or away from each other along the guide rod 24. This mechanism can be controlled by a hydraulic or electric drive system, allowing the operator to quickly adjust the position of the chain disc rack 2 according to the cutting width requirement.

[0108] Referring to FIGS. 17 and 22, the support device 3 is provided on the chain disc rack 2. The support device 3 includes a support 31 for guiding crops and a slider device for switching the support 31 between a raised state and a lowered state. In the raised state, the support 31 is perpendicular to the chain disc rack 2, and in the lowered state, the support 31 is parallel to the chain disc rack 2. The slider device is linked with the chain disc rack 2, so that when the two chain disc racks 2 move towards each other, the slider device drives the support 31 to switch to the lowered state, and when the two chain disc racks 2 move away from each other, the slider device drives the support 31 to switch to the raised state.

[0109] The reel 31 is mounted on the chain disc frame 2, and its switching between the raised state and the lowered state is realized through the slider device. The slider device automatically adjusts the state of the reel 31 in response to the position change of the chain disc frame 2. When the chain disc frames 2 are close to each other, the slider device drives the reel 31 to be lowered; when the chain disc frames 2 are away from each other, the reel 31 is driven to be raised; the automatic lifting of the reel 31 reduces the manual adjustment required by the operator before and after work, especially when the cutting table needs to be folded for transportation. Such design not only improves the work flexibility and efficiency of the machine, but also greatly reduces the operation complexity and maintenance requirements, making the machine more suitable for the large-scale and diversified work requirements of modern agriculture.

[0110] Referring to FIG. 21, the chain disc frame 2 is provided with a chain disc frame weldment and reel mounting seat one 21, reel mounting seat two 22 and two guide rod mounting seats 23 fixed on the chain disc frame weldment, and a guide rod 24 is fixed between the two guide rod mounting seats 23. The guide rod mounting seats 23 slide along the length direction of the guide rod 24 and are in sliding fit with the guide rod 24. The reel 31 is provided with a reel weld seat one 313 connected with the reel mounting seat one 21 and a reel weld seat two 314 connected with the reel mounting seat two 22.

[0111] In the present scheme, the chain disc frame 2 is mainly composed of a chain disc frame weldment, which is the main body structure. On the chain disc frame weldment, two reel mounting seats (reel mounting seat one 21 and reel mounting seat two 22) are fixed, which are used to support and fix the main components of the reel 31. In addition, the two guide rod mounting seats 23 are connected through the guide rod 24, which provides a mechanical track and support for the movement of the reel 31. The reel weld seat one and the reel weld seat two 314 are fixed on the reel mounting seat, and the two weld seats can move along the guide rod 24.

[0112] In a specific embodiment, the chain disc frame 2 comprises a first straw guard mounting seat 21, a second straw guard mounting seat 22, a guide rod mounting seat 23, a guide rod 24, a straw guard sliding rail mounting frame 25, a pressing plate 26, and a chain disc frame welding 27. The first straw guard mounting seat 21 is fixed on the chain disc frame welding 27 by bolt assembly, and the second straw guard mounting seat 22 is fixed on the chain disc frame welding 27 by bolt assembly. The first straw guard mounting seat 21 and the second straw guard mounting seat 22 are fixed in position relative to the chain disc frame welding 27. The two guide rod mounting seats 23 are fixed on the chain disc frame welding 27 by bolt assembly, and the guide rod 24 is mounted on the guide rod mounting seats 23 at both ends, and the pressing plate 26 and the guide rod 24 are fixed on the guide rod mounting seats 23 by bolts. Thus, the guide rod 24, the pressing plate 26, and the guide rod mounting seats 23 are fixed relative to the chain disc frame welding 27. The straw guard sliding rail mounting frame 25 is fixed on the chain disc frame welding 27 by bolt connection. Thus, the first straw guard mounting seat 21, the second straw guard mounting seat 22, the guide rod mounting seat 23, the guide rod 24, the straw guard sliding rail mounting frame 25, and the pressing plate 26 are fixed relative to the chain disc frame welding 27, so that the positions of the parts are fixed relative to each other, forming a stable structure.

[0113] Referring to FIG. 22 and FIG. 15, the straw guard 31 comprises a first straw guard welding 311 and a second straw guard welding 312, both of which are provided with uniformly distributed square holes. By threading locking bolts in different square holes, the overall height of the straw guard 31 can be adjusted. The first straw guard welding seat and the second straw guard welding seat 314 are respectively fixed with heavy pipe clamp bodies 317, which are hingedly connected with the first straw guard welding 311, so that the first straw guard welding 311 can rotate around the heavy pipe clamp bodies 317.

[0114] In a specific embodiment, referring to FIG. 15, the straw guard 31 is composed of a straw guard welding piece 311, a straw guard welding piece 312, a straw guard welding seat 313, a straw guard welding seat 314, a straw guard anti-collision plate 315, a straw guard special-shaped pin 316, a heavy pipe clamp body 317, a ring chain 318, a hose 319, a rubber pad 321, and a rubber pad 322. The straw guard welding piece 311 and the straw guard welding piece 312 are connected by bolt fastening, and both of them have uniformly distributed square holes. By assembling through different square holes, the height of the straw guard can be adjusted. The straw guard welding seat 313 is assembled on the straw guard mounting seat 21 of the chain disc carrier 2, and the straw guard welding seat 314 is assembled on the straw guard mounting seat 22 of the chain disc carrier 2. Because the straw guard mounting seat 21 and the straw guard mounting seat 22 are relatively fixed, the straw guard welding seat 313 and the straw guard welding seat 314 are also relatively fixed. The heavy pipe clamp body 317 is respectively installed on the straw guard welding seat 313 and the straw guard welding seat 314 and is fastened by bolts, and at the same time, the heavy pipe clamp body 317 is hingedly connected with the straw guard welding piece 311, and the straw guard welding piece 311 can rotate around the heavy pipe clamp body 317. The straw guard anti-collision plate 315 is fixed on the straw guard welding piece 311 by bolt connection, and the rubber pad 322 is fixed on the straw guard anti-collision plate 315 by bolt connection. The rubber pad 321 is fixed on the straw guard welding piece 311 by bolt connection. The straw guard special-shaped pin 316 is hingedly connected with the straw guard welding piece 311. The ring chain 318 is fixed on the straw guard welding piece 312 by bolts, and the hose 319 is sleeved on the ring chain 318.

[0115] Referring to FIG. 16, the straw guard welding piece 311 includes a straw guard plate 3111, a straw guard rod 3112, and a straw guard plate 3114. The straw guard rod 3112 is fixedly connected with the straw guard plate 3111 at both ends, and the straw guard plate 3114 is fixed on the straw guard rod 3112. A stop ring 3113 is arranged on the straw guard rod 3112 for limiting. In a specific embodiment, the stop ring 3113 is welded on the straw guard rod 3112, and the distance from the straw guard plate 3111 is b, so as to limit the left and right movement of the heavy pipe clamp body 317 and ensure the stable state of the straw guard 31 in operation.

[0116] Referring to FIG. 15, the rubber pad 321 is installed on the straw guard plate 1 by bolts, which prevents collision with the chain disc carrier 2 in the closed state of the straw guard 31.

[0117] The second welding of the windrower 312 includes the fixed connection of the windrower rod 3123, the windrower plate 3122 and the windrower rod 3123. The windrower plate 3122 is uniformly distributed with square holes and is bolted and assembled with the first welding of the windrower 311. The windrower rod 3123 and the windrower rod 3123 are bent and formed to match the material flow track. The windrower plate 3111 is provided with the rubber pad 321, and the windrower plate 3114 is provided with the rubber pad 322.

[0118] In a specific embodiment, referring to FIG. 17, the second welding of the windrower 312 includes the windrower rod 3121, the windrower plate 3122 and the windrower rod 3123. The windrower rod 3121, the windrower plate 3122 and the windrower rod 3123 are welded as a whole. The windrower plate 3122 is uniformly distributed with square holes and is bolted and assembled with the first welding of the windrower 311. The length of the windrower can be adjusted. The windrower rod 3121 and the windrower rod 3123 are bent and formed. When the cutting table is working, the material is better wrapped, and the loss rate is reduced.

[0119] As shown in FIG. 15, the windrower bumper 315 on the windrower 31 is bolted with the first welding of the windrower 311. The windrower plate 3111 on the first welding of the windrower 311 has uniformly distributed diamond-shaped holes, which can adjust the position of the windrower bumper 315. The rubber pad 322 is assembled on the windrower bumper 315. When the windrower 31 is in the open state, the position of the rubber pad 322 can be adjusted to prevent the windrower 31 from colliding with the chain disc frame 2.

[0120] Referring to FIG. 18, the sliding block device 33 includes a bottom plate seat 331, a sliding rail 344 and a traction rod. The bottom plate seat 331 is hingedly connected with a joint bearing 332 through a pin shaft. The sliding rail 344 is slidingly connected with a sliding rod bearing 343. The sliding rod bearing 343 is connected with the windrower 31 through a connecting rod. The traction rod is connected with the joint bearing 332 and the sliding rod bearing 343 at both ends. The bottom plate seat 331 is fixed on the chain disc frame sliding seat 13 to ensure that the entire sliding block device 33 moves synchronously with the chain disc frame 2. The joint bearing 332 hingedly connected with the bottom plate seat 331 provides a turning point, allowing the traction rod to exert tension or pressure as the bottom plate seat 331 moves. The sliding rod bearing 343 on the sliding rail 344 can slide along the rail. This sliding is directly transmitted to the windrower 31 through the connecting rod 337, thereby achieving the lifting or lowering of the windrower 31. When the chain disc frame sliding seat 13 moves, the bottom plate seat 331 moves correspondingly, and the traction rod transmits the force to the sliding rod bearing 343 through the joint bearing 332, and then acts on the windrower 31 through the connecting rod.

[0121] The traction rod comprises a connecting rod 337 and a guide rail weld 334, the guide rail weld 334 is a hollow structure, one end of the connecting rod 337 is connected with the slide rod bearing 343, the other end is slidingly inserted into the guide rail weld 334, one end of the connecting rod 337 fixed with a thrust pin 335 in the guide rail weld 334, a pin hole is formed on the guide rail weld 334 for the thrust pin 335 to pass through, a thrust ring one 336 and a thrust ring two are arranged on the guide rail weld 334, the thrust ring one 336 is fixed on the end of the guide rail weld 334, the thrust ring two is slidingly sleeved on the guide rail weld 334, a spring 345 is arranged between the thrust ring one 336 and the thrust ring two, the thrust ring two abuts against the thrust pin 335 under the action of the spring 345.

[0122] The connecting rod comprises a Y-shaped joint 338, a screw rod 339 and a joint bearing two 341, one end of the screw rod 339 is threadedly connected with the Y-shaped joint 338, the other end is threadedly connected with the joint bearing two 341, the joint bearing two 341 is fixedly connected with the slide rod bearing 343, and the special-shaped pin 316 is hingedly assembled with the Y-shaped joint 338 on the crop lifter 31.

[0123] In a specific embodiment, the slide block device 33 comprises a bottom plate seat 331, a joint bearing one 332, a locking nut 333, a guide rail weld 334, a thrust pin 335, a thrust ring one 336, a connecting rod 337, a Y-shaped joint 338, a screw rod 339, a joint bearing two 341, a slide rod pin shaft 342, a slide rod bearing 343, a sliding rail 344 and a spring 345. The bottom plate seat 331 is fixedly connected with the chain disc frame sliding seat 13 through bolts, the joint bearing one 332 is hingedly connected with the bottom plate seat 331 through a pin shaft, and the elastic thrust pin 335 is assembled to prevent the pin from falling off. The joint bearing one 332 is threadedly connected with the guide rail weld 334, and the locking nut 333 is used for fastening. The sliding rail 344 is fixedly connected with the crop lifter sliding rail mounting frame 25 of the chain disc frame 2 through bolts. One end of the connecting rod 337 is hingedly connected with the slide rod pin shaft, the other end is connected with the guide rail weld 334 to form a slide block mechanism, the spring 345 is assembled on the guide rail weld, the thrust ring one 336 is assembled on the guide rail weld 334, the spring 345 is limited in the guide rail weld 334 and the thrust ring one 336, and the thrust pin 335 is riveted and fixed with the connecting rod 337, so that the thrust ring one 336 is limited between the guide rail weld 334 and the connecting rod 337. One end of the screw rod 339 is threadedly connected with the Y-shaped joint 338, the other end is also threadedly connected with the joint bearing two 341, and the center distance a between the slide rod pin shaft 342 and the Y-shaped joint 338 can be adjusted by adjusting the screwing depth of the screw rod 339. The slide rod bearing 343 is closely matched with the slide rod pin shaft 342, and the outer ring of the slide rod bearing 343 falls on the sliding rail 344 to roll.

[0124] As shown in Figure 22, the screw rod 339 of the sliding block device 33 is connected with the joint bearing two 341 and the Y-shaped joint 338 through thread connection, and the maximum opening angle and the minimum closing angle of the straw guard 31 can be adjusted by adjusting the center distance a of the sliding rod pin 342 and the Y-shaped joint 338. The straw guard 31 is ensured to adaptively move in a reasonable range during the opening and closing movement of the cutting platform.

[0125] As shown in Figure 18, the sliding track 344 of the sliding block device is welded with reinforcing welding plates on both sides of the track, and the track trajectory is simulated to move, so that the extreme angle of the straw guard 31 is small during the adaptive movement, the speed change value K is small, and the whole movement process is smooth.

[0126] As shown in Figure 22, the spring 345 is assembled between the connecting rod 337 and the guide rail welding 334, and when the connecting rod 337 in the sliding block device 33 moves, the kinetic energy of the connecting rod 337 can be absorbed by the spring 345 when the speed change value K is large, so that the straw guard 31 moves smoothly during the whole movement process.

[0127] The special-shaped pin 316 is cylindrical, the middle part of the special-shaped pin 316 is holed and the two sides of the cylinder are flattened for hinged cooperation with the Y-shaped joint; the special-shaped pin 316 is arranged on the straw guard, one end is provided with a protrusion, and the other end is arranged through a pin hole to match an open pin, so as to limit the axial movement of the special-shaped pin 316.

[0128] In a specific embodiment, referring to Figure 21, the straw guard special-shaped pin 316 is a conventional pin shaft which is reprocessed, the middle part is holed through the frame, and the two sides of the cylinder are flattened. The straw guard special-shaped pin 316 is hingedly assembled with the Y-shaped joint 338, and is also hingedly assembled with the straw guard welding one 311 of the straw guard plate one 3111 through the open pin assembly to limit the left and right movement. After the force is transmitted to the Y-shaped joint 338 and then to the straw guard special-shaped pin 316, the straw guard 31 as a whole rotates axially relative to the heavy pipe clamp body 317.

[0129] As shown in Figure 18, the sliding track 344 of the sliding block device is welded with reinforcing welding plates on both sides of the track, and the track trajectory is simulated to move, so that the extreme angle of the straw guard 31 is small during the adaptive movement, the speed change value K is small, and the whole movement process is smooth.

[0130] As shown in Figure 22, the spring 345 is assembled between the connecting rod 337 and the guide rail welding 334, and when the connecting rod 337 in the sliding block device 33 moves, the kinetic energy of the connecting rod 337 can be absorbed by the spring 345 when the speed change value K is large, so that the straw guard 31 moves smoothly during the whole movement process.

[0131] As shown in Fig. 18 and 20, the connecting rod 337 is welded by round steel and bent plate, in which the round steel and bent plate are respectively holed. The bent plate hole is hinged with the slide pin 342, and the round steel hole is used to assemble the thrust pin 335, which limits the thrust ring 336 and spring 345 inside.

[0132] As shown in Fig. 20, the guide rail weld 334 is welded by round tube and thrust ring, and the round tube is holed on both sides. The spring 345 is limited by the welded thrust ring to slide, and the waist hole limits the thrust pin 335 within the range, and the movement of the thrust pin 335 makes the spring 345 absorb and convert potential energy, which ensures the stable movement of the header 31.

[0133] First, the whole chain cutter cutting table device is effectively connected with the main machine, that is, the first hanging bracket 1 is hung with the feeding device in the main machine, and the hydraulic power in the main machine is input to the chain cutter cutting table device.

[0134] Then according to the actual needs of the job control chain knife cutting table open and close. Generally speaking cutting table operation when the reel 31 is raised fixed state, with the chain disc rack 2 and the first hanging frame 1 keep relative fixed state. With the machine forward direction as the point of view. As shown in Figure 17 is the chain knife cutting table device open working state, reel 3 is raised stable state. As shown in Figure 18, in the chain knife cutting table operation end, for the convenience of transport shift, cutting table chain disc rack 2 through the central hanging 12 effect, realize from 0 DEG to 90 DEG of turnover. As shown in Figure 17, Figure 19 and Figure 22, in the chain knife cutting table work and non working state, chain disc rack 2 0 DEG to 90 DEG of turnover, reel 3 passive movement, realize the reel 3 is raised and fall. As shown in Figure 20 Figure 21, the chain knife cutting table open state to the folding closed state switch first hanging frame 1 and chain rack sliding seat 13 bolt state fixed connection, chain rack 2 on the guide rod 24 through the guide rod mounting seat 23 and the pressure plate 26 is fixed on the chain rack 2, then the chain rack sliding seat 13 and chain rack 2 on the guide rod 24 through the pin shaft connection, and then realize the chain rack 2 relative to the first hanging frame 1 first to both sides of the translation, translation to the limit position, the first hanging frame 1 left and right turnover branch leg 12 is turned over to drive the chain rack 2 turnover, so that the cutting table reaches the closed state. As shown in Figure 22, 15, 18. In the chain rack 2 relative to the first hanging frame 1 to both sides of the translation, reel 31 realize from the rise state adaptive fall state of the whole process. As shown in Figure 18, in the chain rack 2 relative to the first hanging frame 1 to both sides of the translation, guide rail welding 334 and chain rack 2 on the reel slide rail mounting bracket 25 through the bolt fixed connection, so that the guide rail welding 334 and chain rack 2 together to both sides of the movement, and then the bottom plate seat 331 and the first hanging frame 1 on the chain rack sliding seat 13 through the bolt fixed connection, and then lead to the sliding rod bearing 343 in the sliding rail 344 on the slider movement. Among them 334 guide rail welding and connecting rod 337 through the thrust ring 336 limit spring 345, also through the thrust pin 335 to limit the thrust ring 336, make the sliding rod bearing 343 in the 344 sliding rail on the movement is relatively flat, effectively reduce the sliding rod bearing 343 speed change rate K value; and then due to the spring 345 effect pull connecting rod 337, connecting rod 337 because of through the screw 339 and Y type joint 338 connection, pull Y shaped joint 338 downward trend movement. Also Y shaped joint 338 and reel 31 in the reel special shaped pin 316 is hinged, and then drive reel 31 from the rise state to fall state. When the reel 31 fall state is complete, the central hanging 1 left and right turnover branch leg 12 through the oil cylinder effect around the hinge point begin to turn over, the cutting table complete folding.

[0135] Through the above operation, the cutting platform can be completed from Figure 17 to Figure 19, from the working state to the folding state, the guard 31 is completed in the cutting platform opening and closing, and the adaptive lifting and falling. Through the slider mechanism 33, the guard 31 can realize its own lifting and falling by moving the cutting platform chain disc frame, without more power input and control. Automatic realization of its own movement.

[0136] Similarly, when the cutting platform is working, the folded chain disc frame 2 needs to be changed to the open state, the first hanging frame 1 is controlled by the oil cylinder to make the chain disc frame 2 move from the folding state to the horizontal state by 90°, and then the left and right chain disc frames 2 move inward relative to the first hanging frame 1 through the action of the oil cylinder. The guide rail welding 334 moves together with the chain disc frame 2 to the bottom plate seat 331 direction, the joint bearing one 332 is pushed, and the force is transmitted to the guide rail welding 334, and then the spring 345 transmits the buffered force to the connecting rod 337, as shown in Figures 18 and 11, the slide rod bearing is pushed from the lower left direction to the upper right direction of the sliding rail 344. Again, through the screw rod 339 and the Y-shaped joint 338, the guard special-shaped pin 316 is pushed up, and then the guard 31 rotates around the heavy pipe clamp body 317 to make axial rotation, from the falling state to the lifting state.

[0137] Similarly, as shown in Figure 18, the rotation depth of the screw rod 339 on the Y-shaped joint and the joint bearing 341 can adjust the maximum lifting angle and the minimum falling angle of the guard 31 in the lifting and falling state;

[0138] [According to the rules 91 correction 26.06.2025] Similarly, as shown in Figures 16 and 18, the square holes distributed in the bent plates of the guard welding one 311 and the guard welding two 312 can adjust the overall height of the guard 31 through bolts when harvesting different varieties and qualities of crops, to reduce material loss rate. As shown in Figure 15, the guard welding one 311 is equipped with rubber pad one 321 and rubber pad two 322, so as to prevent the guard 31 from colliding with the chain disc frame 2 in the lifting and falling state, causing equipment damage. At the same time, the guard anti-collision plate 315 can adjust the position of the rubber pad one 321 through the diamond hole, so that the guard 31 can achieve the anti-collision effect at different lifting angles.

[0139] The transmission of force and movement of the sliding block device 33 in the straw lifting device 3, in turn, enables the straw lifting device to automatically adapt to the movement of lifting and falling when the header is opened and closed. No additional power input, electrical and hydraulic control is required. The overall opening or folding state of the header only needs to be controlled by the translation of the chain disc frame 2 and the rotation of the folding leg 12. The control unit is simple and easy for the driver to operate. The overall length of the straw lifting device can be adjusted through the square hole to adapt to different field working scenes and reduce material loss rate. The shape of the second straw lifting rod 3121 welded on the second straw lifting rod 312 can better fit the material flow trajectory during the operation of the header. The position of the second rubber pad 322 can be adjusted by the bottom plate seat 331 to enable the straw lifting device 31 to achieve the anti-collision effect at different lifting angles and reduce the damage rate of the equipment.

[0140] As shown in FIG. 9 and FIG. 23, the cutting platform automatic profiling device of the embodiment comprises a first hanger 1 and a detection main body arranged on the first hanger 1. The detection main body comprises a detection shell 200, a profiling structure 300 hinged with the lower end of the detection shell 200 for adhering to the ground and swinging relative to the detection shell 200 with the change of the ground, a flexible structure 400 connected with the free end of the profiling structure 300 and the detection shell 200 respectively for fixing the maximum distance between the free end of the profiling structure 300 and the detection shell 200, a profiling sensor 500 arranged in the detection shell 200, and a joint bearing assembly 600 connected with the end of the profiling structure 300 close to the detection shell 200 and the profiling sensor 500 respectively for transmitting the angle change amount of the profiling structure 300 swinging relative to the detection shell 200 to the profiling sensor 500. Specifically, the cutting platform automatic profiling device of the application arranges the detection main body on the first hanger 1, hingedly connects the profiling structure 300 with the detection shell 200 through the detection shell 200, and installs the profiling sensor 500 in the detection shell 200, and the joint bearing assembly 600 is connected with the end of the profiling structure 300 close to the detection shell 200 and the profiling sensor 500 respectively, so that when the first hanger 1 is working, the profiling structure 300 adheres to the ground and swings relative to the detection shell 200 with the change of the ground, the joint bearing assembly 600 swings synchronously, and the angle change amount of the profiling structure 300 swinging relative to the detection shell 200 is transmitted to the profiling sensor 500 synchronously. The profiling sensor 500 converts the angle change amount into an electrical signal and transmits it to the controller on the silo. The controller can determine whether to perform profiling action according to the received signal, that is, adjust the height of the first hanger 1, so as to realize automatic profiling, improve work efficiency, reduce labor intensity, and ensure work quality. At the same time, under the action of the joint bearing assembly 600, the profiling sensor 500 is away from the force point in the swinging process of the profiling structure 300, and no longer bears the force applied by the profiling structure 300, which greatly prolongs the service life. During the working process of the first hanger 1, the flexible structure 400 is connected with the free end of the profiling structure 300 and the detection shell 200 respectively to fix the maximum distance between the free end of the profiling structure 300 and the detection shell 200, so as to keep the maximum swinging angle of the profiling structure 300 relative to the detection shell 200 within a stable range, avoiding interference and hindrance caused by too large swinging angle. The present application cooperates with the detection shell 200, the profiling structure 300, the joint bearing assembly 600 and the profiling sensor 500 to realize automatic profiling, and relative to the prior art, the profiling sensor 500 no longer bears the force applied by the profiling structure 300, the service life of the profiling sensor 500 is long, and the practicality is strong, which is suitable for wide promotion and application.It should be understood that the controller on the silage machine controls the first hanger 1 to perform the profiling action according to the signal transmitted by the profiling sensor 500, which is known to those skilled in the art, that is, the specific structure of the controller and how the controller is connected with the profiling sensor 500 are known to those skilled in the art. Optionally, the profiling sensor 500 is electrically connected with the controller. It should be understood that when the free end of the profiling structure 300 swings towards the detection housing 200, the flexible structure 400 deforms flexibly to not interfere with the movement of the profiling structure 300. Optionally, the detection body is provided with two, which are symmetrically arranged at opposite ends of the first hanger 1. Optionally, a first mounting plate 270 for mounting the profiling sensor 500 is arranged in the detection housing 200.

[0141] As shown in FIGS. 25, 27 and 28, in the present embodiment, the joint bearing assembly 600 includes a force transmission rod 620, a first joint bearing 610 sleeved on the first end of the force transmission rod 620 and connected with the end of the profiling structure 300 close to the detection housing 200, a second joint bearing 630 sleeved on the second end of the force transmission rod 620, and a swing arm 640 connected with the second joint bearing 630 and the profiling sensor 500, respectively. Specifically, the profiling structure 300, the first joint bearing 610, the force transmission rod 620, the second joint bearing 630 and the profiling sensor 500 are connected in sequence, so that when the profiling structure 300 swings relative to the detection housing 200, the first joint bearing 610, the force transmission rod 620, the second joint bearing 630 and the profiling sensor 500 swing synchronously, the profiling sensor 500 collects the information of the ups and downs of the working ground in real time and transmits it to the controller on the silage machine, thereby realizing automatic profiling. Optionally, the swing arm 640 connects the interface part of the profiling sensor 500 through a connecting pin. Optionally, the connecting pin connects the pin hole on the interface part of the profiling sensor 500 and the pin shaft cavity on the swing arm 640, so as to fix the interface part of the profiling sensor 500 relative to the swing arm 640. Optionally, the first joint bearing 610 is connected with the profiling structure 300 through a bolt, so as to facilitate disassembly and assembly. Optionally, the second joint bearing 630 is connected with the swing arm 640 through a bolt, so as to facilitate disassembly and assembly.

[0142] As shown in FIG. 26, in the present embodiment, the first joint bearing 610 is threadedly connected with the force transmission rod 620. Specifically, the first joint bearing 610 is threadedly connected with the force transmission rod 620, so that the center distance between the first joint bearing 610 and the second joint bearing 630 can be adjusted by screw movement, thereby ensuring reliable assembly.

[0143] As shown in FIG. 26, in the embodiment, the second joint bearing 630 is threadedly connected with the force transmission rod 620. Specifically, the second joint bearing 630 is threadedly connected with the force transmission rod 620, so that the center distance between the first joint bearing 610 and the second joint bearing 630 can be adjusted by screw movement, to ensure reliable assembly. Optionally, the force transmission rod 620 is a screw rod.

[0144] As shown in FIGS. 25 and 26, in the embodiment, the profiling structure 300 includes a profiling arm 320, a connecting plate 310 arranged on the free end of the profiling arm 320 and connected with the flexible structure 400, a profiling clamp plate 330 connected with the end of the profiling arm 320 close to the detection shell 200, a profiling bracket 340 connected with the profiling clamp plate 330 and hinged with the detection shell 200, and a rocker arm 350 connected with the profiling bracket 340 and the first joint bearing 610 respectively. Specifically, the free end of the profiling arm 320 is connected with the flexible structure 400 through the connecting plate 310, hinged with the detection shell 200 through the profiling clamp plate 330 and the profiling bracket 340, and connected with the first joint bearing 610 through the rocker arm 350, so that the profiling arm 320 can be in close contact with the ground and swing relative to the detection shell 200 along with the change of the ground, and the first joint bearing 610 can be swung through the rocker arm 350, thereby transmitting the angle change amount to the profiling sensor 500, to realize automatic profiling. Optionally, the profiling arm 320 is a rubber arm, to avoid interference and jamming through elastic deformation. Optionally, the profiling arm 320 is connected with the connecting plate 310 and the profiling clamp plate 330 through bolts respectively, to facilitate disassembly, so that the profiling arm 320 of a corresponding specification and shape can be selected according to different ground conditions. Optionally, the rocker arm 350 is welded and fixed on the profiling bracket 340, to have compact structure and reliable strength. Optionally, the profiling clamp plate 330 is welded and fixed on the profiling bracket 340, to have compact structure and reliable strength. Optionally, the upper and lower end faces of the profiling arm 320 are arranged in a special shape, so that the profiling arm 320 at different heights can be in close contact with the profile of the detection shell 200 and the ground.

[0145] As shown in FIG. 25, in the embodiment, the detection main body further includes a profiling pin 210 arranged on the detection shell 200 and hinged with the profiling bracket 340, and a fixing plate 220 connected with the profiling pin 210 and the detection shell 200 respectively and used for preventing the profiling pin 210 and the detection shell 200 from rotating relative to each other. Specifically, the detection shell 200 is hinged with the profiling bracket 340 through the profiling pin 210, and connected with the profiling pin 210 and the detection shell 200 through the fixing plate 220 respectively, to prevent the profiling pin 210 and the detection shell 200 from rotating relative to each other, thereby ensuring compact structure and reliable strength.

[0146] As shown in FIG. 25, in the present embodiment, the flexible structure 400 comprises a connecting band 420, a first adjuster 410 disposed at a first end of the connecting band 420 and connected with the free end of the profiling structure 300, and a second adjuster 430 disposed at a second end of the connecting band 420 and connected with the probe housing 200. Specifically, the connecting band 420 is connected with the free end of the profiling structure 300 through the first adjuster 410, connected with the probe housing 200 through the second adjuster 430, and the maximum swing angle of the profiling structure 300 relative to the probe housing 200 is adjusted by adjusting the length of the connecting band 420 through the first adjuster 410 or the second adjuster 430. Optionally, the first adjuster 410 is connected with the connecting plate 310 through a bolt. Optionally, the second adjuster 430 is connected with the probe housing 200 through a bolt.

[0147] As shown in FIG. 23 and FIG. 29, in the embodiment, the detection main body further comprises a following row assembly 700, which comprises a following row side plate 710 arranged in a horizontal direction, a sensor clamp plate 720 rotatably arranged on the detection shell 200 and connected with the following row side plate 710, a following row sensor 750 arranged on the detection shell 200 and having a sensing end connected with the sensor clamp plate 720, a reset mounting plate 740 arranged in the detection shell 200 and kept a preset distance from an end of the sensor clamp plate 720 away from the following row side plate 710, and an elastic reset member 730 connected with the end of the sensor clamp plate 720 away from the following row side plate 710 and the reset mounting plate 740 respectively. Specifically, the following row side plate 710 and the following row sensor 750 are connected with the sensor clamp plate 720 respectively, so that the sensor clamp plate 720 is swung synchronously by the following row side plate 710, the following row sensor 750 is swung correspondingly, the following row sensor 750 converts the swing angle into an electrical signal and sends it to the controller of the silo, so that the silo is rotated, and then the harvesting operation can be performed in a reasonable direction, and the end of the sensor clamp plate 720 away from the following row side plate 710 and the reset mounting plate 740 are connected with the elastic reset member 730 respectively, so that the elastic reset member 730 is applied with a force synchronously in the process of swinging of the sensor clamp plate 720, and then the elastic reset member 730 realizes automatic reset in the process of automatic following row. Optionally, the sensor clamp plate 720 and the following row side plate 710 are detachably connected, so that the following row side plate 710 can be quickly disassembled and replaced when the following row side plate 710 is damaged or does not adapt to special terrain. Optionally, the sensor clamp plate 720 is connected with the interface component of the following row sensor 750. Optionally, the pin hole on the interface component of the following row sensor 750 and the pin shaft cavity on the sensor clamp plate 720 are connected through a connecting pin, so as to fix the interface component of the following row sensor 750 relative to the sensor clamp plate 720 and ensure stable signal transmission in the working process. Optionally, the elastic reset member 730 is a spring. Optionally, one end of the elastic reset member 730 is connected with the reset mounting plate 740 through a bolt, and the other end is connected with the end of the sensor clamp plate 720 away from the following row side plate 710 through a bolt. Optionally, the second mounting plate 280 for mounting the following row sensor 750 is arranged in the detection shell 200.

[0148] As shown in FIG. 23, in the embodiment, the detection main body further comprises a divider 800 hinged to the detection shell 200, and an adjusting member 900 arranged in the detection shell 200 and used for abutting against the divider 800 to limit the rotation angle of the divider 800. Specifically, the divider 800 divides the crops in the ground into rows to facilitate the harvesting operation, improve the harvesting efficiency and operation quality, and the adjusting member 900 limits the rotation angle of the divider 800 within a reasonable range. Optionally, the adjusting member comprises an adjusting plate and a limiting bolt arranged on the adjusting plate and abutting against the divider 800. It should be understood that the specific structure of the divider 800 is known to those skilled in the art, and will not be described here in more detail.

[0149] As shown in FIG. 23 and FIG. 24, in the embodiment, the detection shell 200 is provided with a profiling cavity 230 accommodating the profiling sensor 500, and a cover plate 240 detachably arranged on the side wall of the detection shell 200 and closing the profiling cavity 230. Specifically, the profiling sensor 500 is accommodated in the profiling cavity 230, and the profiling cavity 230 is closed by the cover plate 240 to protect the profiling sensor 500. Optionally, the detection shell 200 is further provided with a rowing cavity 250 for accommodating the rowing assembly 700, an adjusting cavity for accommodating the adjusting member 900, and a passing cavity 260 through which the upper knife of the first hanger 1 passes. Optionally, the profiling cavity 230, the rowing cavity 250, the adjusting cavity and the passing cavity 260 are independent of each other, and the functions of the respective regions do not affect each other, so as to realize automatic profiling, automatic rowing and automatic dividing at the same time, greatly improve the operation efficiency, reduce the operation intensity and improve the operation quality. Optionally, the cover plate 240 can also close the rowing cavity 250, so as to facilitate the maintenance of the profiling sensor 500 and the rowing assembly 700 by detaching the cover plate 240.

[0150] The silage machine of the embodiment comprises the cutterbar automatic profiling device described above. Specifically, by adopting the cutterbar automatic profiling device described above in the silage machine, the service life of the profiling sensor 500 is ensured while realizing automatic profiling, which is practical and suitable for wide promotion and application.

[0151] Other embodiments of the application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. It is intended that the specification and examples be considered as exemplary only, with the true scope and spirit of the application being indicated by the following claims.

[0152] It should be understood that the application is not limited to the precise construction which has been described above and illustrated in the accompanying drawings and that various modifications and changes can be made by those skilled in the art without departing from the scope of the application. The scope of the application is indicated only by the appended claims.

Claims

1. A link adjustment device characterized by, The rack (201) has a fixed part (202) provided with slide rails (7) in the first direction and the second direction, and the first sprocket (302) and the second sprocket (303) are respectively arranged on one side of the slide rails (7), The chain ring (4) is engaged with the first sprocket (302) and the second sprocket (303) on the inner side, and the first sprocket (302) and the second sprocket (303) can slide relative to the slide rails (7) to change the shape of the chain ring (4).

2. A head apparatus according to claim 1, wherein The rack (201) further comprises a mounting seat (203) arranged on the side away from the second sprocket (303), and the mounting seat (203) is connected with the fixed part (202), and the mounting seat (203) is provided with a driving sprocket (301), and the driving sprocket (301) is connected with the mounting seat (203) through a gear box (501), and the driving sprocket (301) is engaged with the chain ring (4).

3. A chain link adjusting device according to claim 2, wherein The middle part of the first sprocket (302) and the second sprocket (303) is provided with a nut shaft (8), the bottom of the nut shaft (8) has a sliding block with a threaded hole in the middle, the sliding block is matched with the slide rail (7), each slide rail (7) is provided with a lead screw (503), and the lead screw (503) is connected with a driving motor (502) through the threaded hole.

4. A chain link adjusting device according to claim 1, wherein The rack (201) further comprises an adjusting part (204) installed on the side of the fixed part (202) close to the second sprocket (303), and the adjusting part (204) can be adjusted along the second direction relative to the fixed part (202) to adapt to the change of the shape of the chain ring (4).

5. A chain link adjusting device according to claim 4, wherein The adjusting part (204) has a plurality of guide shafts extending along the second direction, and a plurality of through holes are formed in the guide shafts, and part of the through holes are connected with the fixed part (202) through bolts.

6. A chain link adjusting device according to claim 1, wherein The chain ring (4) comprises a plurality of chain links, each chain link comprises a welding unit (401), a first shaft body (402), the welding unit (401) has a cylindrical sleeve on the side away from the first shaft body (402), the first shaft body (402) of another chain link can be installed in the cylindrical sleeve, and the first shaft body (402) exposed outside the cylindrical sleeve is clamped in the clamping groove of the sprocket.

7. A chain link adjusting device according to claim 6, wherein The chain ring (4) further comprises a first cutter body (403) arranged on one side of the welding unit (401), and the first cutter body (403) is connected with the welding unit (401) through bolts.

8. A chain link adjusting device according to claim 7, wherein The welding unit (401) further comprises a cover plate and a push piece, the cover plate is arranged on the side of the first shaft body (402) away from the first cutter body (403), and the push piece is arranged in the middle of the welding unit (401).

9. A chain link adjusting device according to claim 1, wherein The tool changing assembly (6) comprises a second tool body (601) and a third tool body (602), both of which are mounted outside the frame (201), the second tool body (601) is arranged on the side away from the second sprocket (303), and the third tool body (602) is arranged on the side close to the second sprocket (303).

10. A chain link adjusting device according to claim 1, wherein The first hanging frame (1) is provided with two frames (201) symmetrically distributed on one side of the first hanging frame (1), and the frames (201) are connected with the first hanging frame (1) by bolts.

11. A stand adjustment device characterized by The first hanging frame (1) is used for connecting with a main machine, and comprises a first hanging frame welding (11) and a turnover leg (12). The chain disc frame (2) is arranged on the two turnover legs (12) of the first hanging frame (1) in two groups and symmetrically, and the chain disc frame (2) is in sliding fit with the turnover leg (12), so that the two chain disc frames (2) can slide close to or away from each other. The crop supporting device (3) is arranged on the chain disc frame (2), and comprises a crop supporting device (31) for guiding crops and a sliding block device (33) for driving the crop supporting device (31) to switch between a raised state and a fallen state. The sliding block device (33) is linked with the chain disc frame (2), so that when the two chain disc frames (2) are close to each other, the sliding block device (33) drives the crop supporting device (31) to switch to the fallen state, and when the two chain disc frames (2) are away from each other, the sliding block device (33) drives the crop supporting device (31) to switch to the raised state. The slider device (33) includes a bottom plate seat (331), a sliding rail (344), and a traction rod; the bottom plate seat (331) is fixedly connected with the chain disc frame sliding seat (13), a joint bearing one (332) is hingedly connected on the bottom plate seat (331) through a pin shaft, the sliding rail (344) is slidingly connected with a sliding rod bearing (343), the sliding rod bearing (343) is connected with the straw lifting device (31) through a connecting rod, the traction rod is connected with the joint bearing one (332) and the sliding rod bearing (343) at two ends respectively, the bottom plate seat (331) drives the traction rod to move when the bottom plate seat (331) moves with the chain disc frame sliding seat (13), and then the straw lifting device (31) is driven to rise or fall through the connecting rod; the connecting rod includes a Y-shaped joint (338), a screw rod (339), and a joint bearing two (341), one end of the screw rod (339) is threadedly connected with the Y-shaped joint (338), the other end of the screw rod (339) is threadedly connected with the joint bearing two (341), the joint bearing two (341) is fixedly connected with the sliding rod bearing (343), the straw lifting device (31) is provided with a special-shaped pin (316) which is hingedly assembled with the Y-shaped joint (338); the special-shaped pin (316) is in a cylindrical shape, a hole is formed in the middle part of the special-shaped pin, and the two sides of the cylinder are flattened to be hingedly matched with the Y-shaped joint (338); the special-shaped pin is arranged on the straw lifting device (31), one end of the special-shaped pin is provided with a protrusion, and the other end of the special-shaped pin is arranged with a split pin through a pin hole to limit the axial movement of the special-shaped pin.

12. A grain elevator adjustment device as set forth in claim 11, wherein, The chain disc frame (2) includes a chain disc frame welding (27), a straw lifting device mounting seat one (21), a straw lifting device mounting seat two (22), and two guide rod mounting seats (23) fixed on the chain disc frame welding (27), and a guide rod (24) fixed between the two guide rod mounting seats (23); the chain disc frame sliding seat (13) is slidingly matched with the guide rod (24) along the length direction of the guide rod (24), the straw lifting device (31) is provided with a straw lifting device welding seat one (313) connected with the straw lifting device mounting seat one (21) and a straw lifting device welding seat two (314) connected with the straw lifting device mounting seat two (22).

13. A grain elevator adjustment device as claimed in claim 12, wherein: The traction rod includes a connecting rod (337) and a guide rail welding (334), the guide rail welding (334) is a hollow structure, one end of the connecting rod (337) is connected with the sliding rod bearing (343), the other end of the connecting rod (337) is slidingly inserted into the guide rail welding (334), one end of the connecting rod (337) located in the guide rail welding (334) is fixedly provided with a thrust pin (335), a pin hole is formed in the guide rail welding (334) for the thrust pin (335) to pass through, the guide rail welding (334) is provided with a thrust ring one (336) and a thrust ring two, the thrust ring one (336) is fixed on the end of the guide rail welding (334), the thrust ring two is slidingly sleeved on the guide rail welding (334), a spring (345) is arranged between the thrust ring one (336) and the thrust ring two, and the thrust ring one (336) abuts against the thrust pin (335) under the action force of the spring (345).

14. A grain elevator adjustment device as set forth in claim 11, wherein, The wheat supporting device (31) comprises a first welding part (311) and a second welding part (312), the first welding part (311) and the second welding part (312) are provided with uniformly distributed square holes, and the overall height of the wheat supporting device (31) is adjusted by locking bolts arranged in different square holes; the first welding seat (313) and the second welding seat (314) are respectively fixed with heavy pipe clamps (317), the heavy pipe clamps (317) are hingedly connected with the first welding part (311), so that the first welding part (311) can rotate around the heavy pipe clamps (317).

15. A lift control device according to claim 14, wherein The first welding part (311) comprises a first supporting plate (3111), a first supporting rod (3112) and a second supporting plate (3114), the two ends of the first supporting rod (3112) are respectively fixedly connected with the first supporting plate (3111), the second supporting plate (3114) is fixed on the first supporting rod (3112), and a stop ring (3113) for limiting is arranged on the first supporting rod (3112).

16. A lift control device according to claim 15, wherein The second welding part (312) comprises a second supporting rod (3121), a supporting plate (3122) and a supporting rod (3123) which are fixedly connected, the supporting plate (3122) is uniformly provided with square holes and is bolted and assembled with the first welding part (311), and the second supporting rod (3121) and the supporting rod (3123) are bent to match the material flow track.

17. A grain lift adjusting device as claimed in claim 16, wherein A rubber pad (321) is arranged on the first supporting plate (3111), and a rubber pad (322) is arranged on the second supporting plate (3114).

18. An automatic profiling device, characterized by The first hanging rack (1) is provided with a plurality of detection bodies, each detection body comprising a detection shell (200), a profiling structure (300) hingedly connected to the lower end of the detection shell (200) and used for abutting against the ground and swinging relative to the detection shell (200) with the change of the ground, a flexible structure (400) connected to the free end of the profiling structure (300) and the detection shell (200) and used for fixing the maximum distance between the free end of the profiling structure (300) and the detection shell (200), a profiling sensor (500) arranged in the detection shell (200), and a joint bearing assembly (600) connected to the end of the profiling structure (300) close to the detection shell (200) and the profiling sensor (500) and used for transmitting the angle change of the profiling structure (300) relative to the detection shell (200) to the profiling sensor (500).

19. An apparatus according to claim 18, wherein, The joint bearing assembly (600) comprises a force transmission rod (620), a first joint bearing (610) sleeved on the first end of the force transmission rod (620) and connected to the end of the profiling structure (300) close to the detection shell (200), a second joint bearing (630) sleeved on the second end of the force transmission rod (620), and a swing arm (640) connected to the second joint bearing (630) and the profiling sensor (500).

20. An apparatus according to claim 19, wherein, The first joint bearing (610) is threadedly connected with the force transmission rod (620); and / or, the second joint bearing (630) is threadedly connected with the force transmission rod (620).

21. An apparatus according to claim 19, wherein, The profiling structure (300) comprises a profiling arm (320), a connecting plate (310) arranged on a free end of the profiling arm (320) and connected with the flexible structure (400), a profiling clamp plate (330) connected with an end of the profiling arm (320) close to the detection shell (200), a profiling support (340) connected with the profiling clamp plate (330) and hinged with the detection shell (200), and a rocker arm (350) connected with the profiling support (340) and the first joint bearing (610) respectively.

22. An apparatus according to claim 20, wherein, The detection main body further comprises a profiling pin (210) arranged on the detection shell (200) and hinged with the profiling support (340), and a fixing plate (220) connected with the profiling pin (210) and the detection shell (200) respectively and used for preventing the profiling pin (210) and the detection shell (200) from rotating relative to each other.

23. An apparatus according to claim 18, wherein, The flexible structure (400) comprises a connecting belt (420), a first adjuster (410) arranged on a first end of the connecting belt (420) and connected with a free end of the profiling structure (300), and a second adjuster (430) arranged on a second end of the connecting belt (420) and connected with the detection shell (200).

24. An apparatus according to claim 18 wherein, The detection shell (200) is provided with a profiling cavity (230) for accommodating the profiling sensor (500), and a cover plate (240) is detachably arranged on a side wall of the detection shell (200) and used for closing the profiling cavity (230).

25. An apparatus according to claim 18 wherein, The detection main body further comprises a rowing assembly (700) comprising a rowing side plate (710) arranged in a horizontal direction, a sensor clamp plate (720) rotatably arranged on the detection shell (200) and connected with the rowing side plate (710), a rowing sensor (750) arranged on the detection shell (200) and having a sensing end connected with the sensor clamp plate (720), a reset mounting plate (740) arranged in the detection shell (200) and maintaining a preset distance from an end of the sensor clamp plate (720) away from the rowing side plate (710), and an elastic reset member (730) connected with the end of the sensor clamp plate (720) away from the rowing side plate (710) and the reset mounting plate (740) respectively.

26. An automatic profiling device according to claim 18, wherein, The detection main body further comprises a divider (800) hinged with the detection shell (200), and an adjusting member (900) arranged in the detection shell (200) and used for abutting against the divider (800) to limit a rotation angle of the divider (800).

27. A silo characterized by The device comprises at least one device selected from the group consisting of: a chain link adjusting device having the technical features of any one of claims 1-10; a supporting and dividing adjusting device having the technical features of any one of claims 11-17; and an automatic profiling device having the technical features of any one of claims 18-26.

Images