Straw conveying device for biogas production from straw fermentation

Abstract

This invention belongs to the field of straw conveying equipment and proposes a straw conveying device for fermenting straw to produce biogas. The device includes a frame, a handle mechanism, omnidirectional wheels, a chassis, and a conveyor. The upper part of the conveyor is equipped with a dust cover, and a feed hopper is located on the feed side of the dust cover near the conveyor. Both sides of the conveyor are hinged to the chassis, and manual tilting mechanisms are located at positions offset from the hinges. A half-shaft, coaxially connected to the driven part of the conveyor, is located on the discharge side of the conveyor. A drive wheel for movement is mounted on the half-shaft, and an end cap is provided at the end of the half-shaft to limit the axial movement of the drive wheel. This invention is rationally designed, combines walking power with material conveying power, is easy to move and adjust, has dust prevention measures, and is highly practical, making it suitable for large-scale promotion.

Description

Technical Field

[0001] This invention belongs to the field of straw conveying equipment, and particularly relates to a straw conveying device for fermenting straw to produce biogas. Background Technology

[0002] Straw fermentation to produce biogas is a process that utilizes agricultural waste such as straw to produce combustible gas (biogas) through the decomposition and metabolism of microorganisms under anaerobic conditions. It is an important way to realize the resource utilization of agricultural waste. In biogas projects that process large amounts of straw waste, corresponding mechanical and automated equipment is used to improve the processing efficiency of straw, such as straw dryers, straw crushers, straw conveyors, and biogas digester mixing devices.

[0003] Straw conveyors can be divided into fixed and mobile types according to their installation method. Among them, mobile straw conveyors, such as the raw material conveying mechanism for manufacturing straw pellet fuel disclosed in Chinese utility model patent with announcement number CN213678620U, require a power device that is independent of the conveyor's power source for mobility. However, manual transfer is inefficient. Furthermore, there is the issue of dust during the conveying process. Due to the use of dry fermentation workshops, the dried straw carries a large amount of dust. In addition to the large amount of dust generated during the crushing process, the crushed straw fragments poured onto the conveyor also raise a large amount of dust, affecting the working environment of the workshop. Summary of the Invention

[0004] This invention addresses the technical problems existing in the aforementioned straw conveyors by proposing a straw conveying device for fermenting straw into biogas that is rationally designed, combines walking power with material conveying power, is easy to transfer and adjust, has dust prevention measures, and is highly practical.

[0005] To achieve the above objectives, the technical solution adopted by the present invention is as follows: The straw conveying device for straw fermentation to produce biogas provided by the present invention includes a frame, a handrail mechanism is provided on the rear side of the frame, multiple pairs of universal wheels are provided at intervals along the length of the frame at the bottom of the frame, a housing is provided on the top of the housing, an inclined mounting opening is provided on the top of the housing, and a conveyor is inclinedly installed at the mounting opening. The upper part of the conveyor is provided with a dust cover, a feed hopper is provided on the feed side of the dust cover near the conveyor, both sides of the conveyor are hinged to the housing and a manual turning mechanism is provided at a position away from the hinge, a half shaft is provided on the discharge side of the conveyor and coaxially connected to the driven part of the conveyor, a drive wheel for walking is provided on the half shaft, and a shaft end cap for limiting the axial movement of the drive wheel is provided at the end of the half shaft.

[0006] Preferably, the manual tilting mechanism includes an L-shaped tilting arm, one end of which is hinged to the side of the conveyor, and the other end of which is inclined upwards towards the direction of the handrail mechanism. A support seat is provided at the turning point of the L-shaped opening of the tilting arm, and a hydraulic jack is provided at the driving end of the tilting arm. The hydraulic jack is mounted on the side of the machine box through a fixed seat.

[0007] Preferably, the tilting arm is provided with a guide hole near its L-shaped opening that is movable relative to the support base, and the support base is provided with a support shaft that cooperates with the guide hole.

[0008] Preferably, the bottom of the support base is provided with a support opening, which cooperates with a support square tube provided on the side of the chassis. The support square tube is horizontally arranged and has multiple connection holes distributed along its length on its side. The support square tube and the support base are connected by two connectors.

[0009] Preferably, the telescopic end of the hydraulic jack is nested with a shaft cylinder located at the end of the tilting arm, and a hexagonal positioning rod is provided at the center of the shaft cylinder, which is engaged with a positioning hole on the machine housing.

[0010] Preferably, the chassis has an assembly port at a position biased towards the handrail mechanism. The assembly port supports and cooperates with the active part of the conveyor. A clamping port is provided in the middle of the assembly port. A downwardly extending clamping plate is provided on the outer side of the active part of the conveyor. The lower half of the clamping plate cooperates with the clamping port. A clamping hole is provided on the side of the clamping plate. A pin tube corresponding to the clamping hole is provided on the chassis. The pin tube is connected to the clamping hole by a clamping bolt.

[0011] Preferably, the frame includes a pair of rectangular tubes disposed at its bottom, the length direction of the rectangular tubes being consistent with the length direction of the frame, and a vehicle axle mechanism being movably inserted into the two rectangular tubes, the vehicle axle mechanism being used to support the front end position of the conveyor after it is flipped.

[0012] Preferably, the axle mechanism includes a pair of plug-in square tubes, the length of which is greater than the length of the rectangular tube and the end of which is biased toward the handrail mechanism to prevent the frame from tailing.

[0013] Preferably, the axle mechanism includes a bracket connected to the front ends of two insert square tubes. The bracket includes a vertical U-shaped section with its opening facing upward and a horizontal U-shaped section with its opening facing the drive wheel. The horizontal U-shaped section is arranged parallel above the rectangular tube. Both the vertical U-shaped section and the horizontal U-shaped section are provided with a locking bolt connected to the conveyor.

[0014] Preferably, a support bucket is provided at the bottom of the conveyor and near the drive wheel. The support bucket has a U-shaped cross-section and its bottom is supported and fitted with the top surface of the rectangular tube. The back of the support bucket is close to the inner side of the horizontal U-shaped section.

[0015] Compared with the prior art, the advantages and positive effects of the present invention are as follows:

[0016] The straw conveying device for biogas production from straw fermentation provided by this invention features a protective cover covering the conveyor to prevent dust accumulation. A feed hopper provides an inlet for the crushed straw. A manually controlled tilting mechanism allows the conveyor's output side to touch the ground, with a drive wheel serving as the ground support. Power is supplied to the drive wheel from the conveyor's power source, enabling the device to move and move, thus reducing costs and the difficulty of manually propelling the device. This invention is rationally designed, combines walking power with material conveying power, is easy to move and adjust, has dust prevention measures, and is highly practical, making it suitable for large-scale promotion. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 Front view of the straw conveying device for fermenting straw to produce biogas;

[0019] Figure 2 A three-dimensional view of the straw conveying device used for fermenting straw to produce biogas.

[0020] Figure 3 A three-dimensional view of the straw conveying device for biogas production from straw fermentation in another direction;

[0021] Figure 4 Front view of the straw conveying device used for fermenting straw to produce biogas;

[0022] Figure 5 A three-dimensional view of the straw conveying device used for fermenting straw to produce biogas.

[0023] Figure 6 for Figure 4 An enlarged schematic diagram of the straw conveying device for biogas production from straw fermentation at point A;

[0024] In the above figures: 1. Frame; 2. Handrail mechanism; 3. Universal casters; 4. Chassis; 41. Mounting port; 42. Assembly port; 43. Clamping port; 44. Pin tube; 45. Clamping bolt; 5. Conveyor; 6. Dust cover; 7. Feed hopper; 8. Manual tilting mechanism; 81. Tilting arm; 82. Support base; 83. Hydraulic jack; 84. Guide hole; 85. Support shaft; 86. Support port; 87. 88. Supporting square tube; 89. Connecting hole; 810. Connecting piece; 811. Shaft cylinder; 812. Hexagonal positioning rod; 9. Half shaft; 10. Drive wheel; 11. Shaft end cap; 12. Clamping plate; 121. Clamping hole; 13. Axle mechanism; 131. Inserted square tube; 132. Bracket; 1321. Vertical U-shaped section; 1322. Horizontal U-shaped section; 133. Locking bolt; 14. Support bucket; 15. Rectangular tube. Detailed Implementation

[0025] To better understand the above-mentioned objectives, features, and advantages of the present invention, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other. For ease of description, the terms "upper," "lower," "left," and "right" appearing below only indicate that they correspond to the upper, lower, left, and right directions in the accompanying drawings and do not limit the structure.

[0026] Numerous specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways than those described herein, and therefore the invention is not limited to the specific embodiments disclosed in the following specification.

[0027] Examples, such as Figures 1-6As shown, the straw conveying device for biogas production by straw fermentation provided by the present invention includes a frame 1, a handrail mechanism 2 is provided on the rear side of the frame 1, a plurality of pairs of universal wheels 3 are provided at the bottom of the frame 1 and spaced along the length of the frame 1, a housing 4 is provided on the top of the frame 1, and an inclined mounting opening 41 is provided on the top of the housing 4, and a conveyor 5 is inclinedly provided at the mounting opening 41. The omnidirectional wheels 3 support the device and have a braking structure to maintain good stationary performance when conveying straw fragments to the biogas digester. The conveyor 5 adopts a side-mounted motor design, which is installed on the side of the transmission box. A transmission chain and sprockets are arranged between the transmission boxes. The active part of the conveyor 5 includes an active roller and an active shaft, and its driven part includes a driven roller and a driven shaft. The sprockets are arranged on the active shaft and the driven shaft. The active shaft is driven to rotate by the motor, which in turn drives the driven shaft to rotate. A conveyor belt or conveyor net is arranged on the active roller and the driven roller. Through continuous operation, the straw fragments can be conveyed to the output side of the conveyor 5 and then poured into the biogas digester. Based on this, the upper part of the conveyor 5 provided by the present invention is provided with a dust cover 6. The dust cover 6 is provided with a feed hopper 7 on the feed side near the conveyor 5. The dust cover 6 is upside down above the conveying surface of the conveyor 5. The two sides of the dust cover 6 are fixed to the transmission box of the conveyor 5 by sheet metal plates and screws. Except for the position of the feed hopper 7, the dust cover 6 basically covers the upper surface of the conveyor 5. This can improve the relative sealing of the conveyor 5 in the path of conveying straw fragments, which is conducive to reducing the amount of dust raised in the dry fermentation workshop and improving the actual working environment quality of the workshop.

[0028] To improve the overall utilization rate of this equipment, the conveyor 5 provided by this invention is hinged to the housing 4 on both sides and a manual tilting mechanism 8 is provided at a position away from the hinge. The discharge side of the conveyor 5 is provided with a half shaft 9 coaxially connected to the driven part of the conveyor 5. A drive wheel 10 for walking is provided on the half shaft 9. The end of the half shaft 9 is provided with a shaft end cap 11 to limit the axial movement of the drive wheel 10. The shaft end cap 11 adopts a combination structure of nut and screw to ensure the rotation quality of the drive wheel 10 in the driving mode. In this way, by controlling the manual flipping mechanism 8 to perform planar movement until the output side of the conveyor 5 lands, the drive wheel 10 serves as the support structure for the ground, supplemented by multiple pairs of omnidirectional wheels 3 as steering wheels. The drive wheel 10 can rotate coaxially with the driven shaft of the conveyor 5 through the half shaft 9. Therefore, the power source of the conveyor 5 inputs power to the drive wheel 10, combining the walking power with the material conveying power, so that the device obtains motorized walking power. The worker can use the handrail mechanism 2 to operate it appropriately, which helps to reduce the overall cost of the equipment and the difficulty of manually pushing the device.

[0029] To improve the control performance of the manual tilting mechanism 8, the manual tilting mechanism 8 provided by the present invention includes an L-shaped tilting arm 81. One end of the tilting arm 81 is hinged to the side of the conveyor 5, and the other end of the tilting arm 81 is inclined upward towards the direction of the handrail mechanism 2. A support seat 82 is provided at the turning position of the L-shaped opening of the tilting arm 81. A hydraulic jack 83 is provided at the driving end of the tilting arm 81. The hydraulic jack 83 is mounted on the side of the housing 4 through a fixed seat. The mounting end of the hydraulic jack 83 remains relatively stationary with respect to the fixed seat and the housing 4. The L-shaped design of the tilting arm 81 serves several purposes. First, it maximizes the working distance between the equipment and the side of the biogas digester, ensuring that the vertical direction of the conveyor 5's output side is aligned with the biogas digester. Second, it fully utilizes the space on the side of the housing 4 to provide a reasonable telescopic connection point for the hydraulic jack 83 and the tilting arm 81, reducing the necessary assembly space for them. Third, by using the tilting arm 81 as an intermediate structure between the hydraulic jack 83 and the conveyor 5, the required extension length of the hydraulic jack 83 can be reduced. The linkage movement formed by the tilting arm 81, support base 82, hydraulic jack 83, conveyor 5, and housing 4 shortens the necessary working length of the hydraulic jack 83, which helps reduce costs.

[0030] The hydraulic jack 83 has a sleeve structure on the side of its cylinder body into which a rocker arm can be inserted. By manually operating the rocker arm, the telescopic end of the hydraulic jack 83 can extend or retract. The hydraulic jack 83 can raise the hinge position between the tilting arm 81 and the conveyor 5 through the extension action, and the conveyor 5 can rotate around the hinge position between itself and the housing 4 until the active part of the conveyor 5 sits firmly on the housing 4. The conveyor 5, as a material conveying device, can discharge the material from the output end into the biogas digester. The hydraulic jack 83 can lower the hinge position between the tilting arm 81 and the conveyor 5 through the retraction action, and the conveyor 5 can rotate in the opposite direction around the hinge position between itself and the housing 4 until the drive wheel 10 touches the ground and the end of the conveyor 5 is suspended in the air to prevent it from hitting the ground. This allows the output side function of the conveyor 5 to be switched to the walking function, thereby improving the overall utilization rate of the equipment.

[0031] Furthermore, the tilting arm 81 is provided with a guide hole 84 near its L-shaped opening, which is movable relative to the support base 82. The support base 82 is provided with a support shaft 85 that mates with the guide hole 84. The support base 82 and the housing 4 together clamp the tilting arm 81, and the support shaft 85 serves both as an anti-detachment structure for the tilting arm 81 and as a guide structure for its planar movement, providing a certain amount of mobility for the tilting arm 81, including tilting, retraction, and rotation. This improves the pushing and pulling efficiency of the hydraulic jack 83 on the tilting arm 81, effectively meeting the requirements of the device for switching different modes of the conveyor 5. When the hydraulic jack 83 is stationary, since the lever arm from the guide hole 84 to the rotation center of the tilting arm 81 and the hydraulic jack 83 remains unchanged, and the installation angle of the hydraulic jack 83 also remains unchanged, the support angle of the tilting arm 81 on the conveyor 5 will not change arbitrarily, thus improving the reliability and safety of the conveyor 5 in different modes.

[0032] To improve the utilization rate of the manual tilting mechanism 8, the support base 82 provided in this invention has a support port 86 at its bottom. The support port 86 cooperates with a support square tube 87 provided on the side of the housing 4. The support square tube 87 is horizontally arranged and has multiple connecting holes 88 distributed along its length on its side. The support square tube 87 and the support base 82 are connected by two connectors 89, preferably screws / bolts. The support square tube 87 serves as the mounting base for the support base 82 on the side of the housing 4 and also provides multiple connecting holes 88 for adjusting the front and rear positions of the support base 82. The actual mating position of the support base 82 and the support square tube 87 is locked by the connectors 89, which can meet the support requirements of the support base 82 for the manual tilting mechanism 8. At the same time, it provides a linkage node that matches the motion requirements for the linkage system composed of the tilting arm 81, support base 82, hydraulic jack 83, conveyor 5 and housing 4, thereby improving the actual utilization rate of this device.

[0033] To improve the stability and reliability of the linkage system consisting of the tilting arm 81, support base 82, hydraulic jack 83, conveyor 5, and housing 4 in a static state, the telescopic end of the hydraulic jack 83 provided by the present invention is nested with the shaft cylinder 810 located at the end of the tilting arm 81. A hexagonal positioning rod 811 is provided at the center of the shaft cylinder 810. The hexagonal positioning rod 811 cooperates with the hexagonal positioning hole provided on the housing 4. The actual position of the positioning hole of the conveyor 5 is different in different modes, so the number of positioning holes is at least two. One positioning hole is the positioning hole of the conveyor 5 in the material conveying mode, and the other positioning hole is the positioning hole of the conveyor 5 when switched to the walking mode. The length of the shaft cylinder 810 is greater than the thickness of the tilting arm 81 at other locations. The portion of the shaft cylinder 810 that exceeds the thickness of the tilting arm 81 is used to connect the hole structure of the telescopic end of the hydraulic jack 83. This hole structure and the shaft cylinder 810 form a rotating pair, which is also the shaft joint between the tilting arm 81 and the hydraulic jack 83, thereby ensuring the continuity of the planar motion of the tilting arm 81 driven by the hydraulic jack 83. By using a hexagonal positioning rod 811 to be connected through to the shaft joint of the manual tilting mechanism 8 after different angle adjustments, and synchronously connected to the housing 4, a safety mechanism is established to prevent the linkage system consisting of the tilting arm 81, support base 82, hydraulic jack 83, conveyor 5, and housing 4 from producing significant planar motion in a static state, thereby ensuring the working performance of the equipment.

[0034] To improve the working stability of the conveyor 5 when conveying materials, the housing 4 provided by the present invention is provided with an assembly port 42 at the position of the handrail mechanism 2. The assembly port 42 supports and cooperates with the active part of the conveyor 5. A clamping port 43 is provided in the middle of the assembly port 42. A downwardly extending clamping plate 12 is provided on the outer side of the active part of the conveyor 5. The lower half of the clamping plate 12 cooperates with the clamping port 43. A clamping hole 121 is provided on the side of the clamping plate 12. A pin tube 44 corresponding to the clamping hole 121 is provided on the housing 4. The pin tube 44 is connected to the clamping hole 121 by a clamping bolt 45. The clamping plate 12 is welded to the tail of the transmission box of the conveyor 5 and establishes a synchronous relationship with the conveyor 5. When the conveyor 5 is driven by the manual flipping mechanism 8 and sits back on the housing 4, the two sides of the clamping plate 12 are in close contact with the edge of the clamping port 43. The clamping port 43 provides clamping action for the clamping plate 12 and provides limiting pairs in at least two directions. At the same time, clamping bolts 45 are used to connect the clamping hole 121 and the pin tube 44. Unlike the limiting pairs on both sides of the clamping plate 12, the clamping bolts 45 further prevent relative movement between the clamping plate 12 and the housing 4 from the rotation free block, thereby improving the stability and reliability of the conveyor 5 when conveying materials.

[0035] To improve the structural reliability of the entire device after the conveyor 5 switches to walking mode, the frame 1 provided by this invention includes a pair of rectangular tubes 15 disposed at its bottom. The length direction of the rectangular tubes 15 is consistent with the length direction of the frame 1. Axle mechanisms 13 are movably inserted into the two rectangular tubes. The axle mechanisms 13 are used to support the front end position of the conveyor 5 after it is flipped. The axle mechanisms 13 are pulled out from the rectangular tubes by a pulling method until they establish a supporting relationship with the flipped conveyor 5, thus making the virtual axle concrete. The axle mechanisms 13 are used to ensure the connection strength between the frame 1 and the conveyor 5, establishing a chassis system with a certain span. Furthermore, the axle mechanisms 13 are distributed horizontally, and if they are in their original positions, they will not affect the connection between the device and the biogas digester.

[0036] Specifically, the axle mechanism 13 provided by the present invention includes a pair of insert square tubes 131. The length of the insert square tubes 131 is greater than the length of the rectangular tubes 15, and one end of the insert square tubes 131 is biased toward the handrail mechanism 2 to prevent the frame 1 from tailing. The frame 1 and the housing 4 are both made of steel structure and have a certain mass and structural strength, so the probability of tailing and tilting is relatively low. In order to improve the safety of the equipment, at the original insertion position, one end of the insert square tubes 131 of the axle mechanism 13 extends out of the end of the rectangular tubes 15, and the direction of the extension is in the direction of the handrail mechanism 2. During the process of the conveyor 5 being pushed into place, the end of the insert square tubes 131 can serve as a braking structure to prevent the frame 1 from tailing, thus avoiding further expansion of the tailing amplitude.

[0037] Furthermore, the axle mechanism 13 provided by the present invention includes a bracket 132 connected to the front ends of two insertable square tubes 131. The bracket 132 includes a vertical U-shaped section 1321 with its opening facing upward and a horizontal U-shaped section 1322 with its opening facing the drive wheel 10. The horizontal U-shaped section is arranged parallel above the rectangular tube 15. Both the vertical U-shaped section 1321 and the horizontal U-shaped section 1322 are provided with a locking bolt 133 for connection with the conveyor 5. The bracket 132 can be held on both sides of the conveyor 5, and the horizontal U-shaped section 1322 and the vertical U-shaped section 1321 provide multiple bolt positions in space. Connecting the conveyor 5 and the bracket 132 with the locking bolt 133 can effectively ensure the reliability of the connection between the axle mechanism 13 and the conveyor 5, thereby improving the stability and safety of the equipment in driving mode.

[0038] like Figure 3 , Figure 4 and Figure 6As shown, the conveyor 5 provided by the present invention has a support bucket 14 at its bottom and near the drive wheel 10. The support bucket 14 has a U-shaped cross-section, and its bottom is supported and engaged with the top surface of the rectangular tube 15. The back of the support bucket 14 is close to the inner side of the horizontal U-shaped section 1322. The support bucket 14 can cooperate with the dust cover 6 to protect the conveyor 5 from the top and bottom, allowing the material to be discharged as much as possible from the output side of the conveyor 5. On the other hand, the support bucket can cooperate with the unfolded axle mechanism 13 to complete multi-point support and establish a stable and reliable assembly connection with the axle mechanism 13. Furthermore, it ensures that the output side of the conveyor 5 has a certain ground clearance, giving the equipment good passability in the walking mode.

[0039] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the protection scope of the present invention.

Claims

1. A straw conveying device for straw fermentation to produce biogas, comprising a frame, a supporting mechanism is arranged at the back side of the frame, a plurality of pairs of universal walking wheels are arranged at the bottom of the frame and are spaced apart along the length direction of the frame, a machine box is arranged on the frame, an inclined installation opening is formed at the top of the machine box, and a conveyor is arranged at the installation opening in an inclined manner, characterized in that, The upper half of the conveyor is provided with a dust cover, the dust cover is provided with a feeding hopper near the feeding side of the conveyor, the two sides of the conveyor are hinged with the machine box and provided with a manual turnover mechanism at a position deviated from the hinge, the discharging side of the conveyor is provided with a half shaft coaxially connected with the driven part of the conveyor, the half shaft is provided with a driving wheel for walking, and the end of the half shaft is provided with an axle end cap for limiting the axial movement of the driving wheel; The manual turnover mechanism comprises an L-shaped turnover arm, one end of the turnover arm is hinged with the side of the conveyor, the other end of the turnover arm is inclined to extend upward in the direction of the supporting mechanism, the turnover arm is provided with a support seat at the turning position of the L-shaped mouth, and the driving end of the turnover arm is provided with a hydraulic jack which is installed on the side of the machine box through a fixing seat; the hydraulic jack is provided with a pipe sleeve structure which can be inserted into the rocker arm on the side of the cylinder body of the hydraulic jack, and manual control of the rocker arm can make the telescopic end of the hydraulic jack produce telescopic action; the hydraulic jack can pull down the hinge position of the turnover arm through retraction action, the conveyor is reversely turned around the hinge position with the machine box until the driving wheel falls to the ground, and the output side function of the conveyor is switched to the walking function; the turnover arm is provided with a guide hole which is relatively movable with the support seat near the L-shaped mouth of the turnover arm, and the support seat is provided with a support shaft matched with the guide hole.

2. The straw conveying device for straw fermentation for biogas production according to claim 1, characterized in that, The bottom of the support seat is provided with a support port matched with a support square tube provided on the side of the machine box, the support square tube is horizontally arranged and provided with a plurality of connecting holes distributed along the length direction thereof, and the support square tube is connected with the support seat through two connecting members.

3. The straw conveying device for straw fermentation for biogas production according to claim 2, characterized in that, The telescopic end of the hydraulic jack is nested with a shaft cylinder provided at the end of the turnover arm, the center of the shaft cylinder is provided with a hexagonal positioning rod matched with a positioning hole provided on the machine box.

4. The straw conveying device for straw fermentation for biogas production according to claim 1, characterized in that, The machine box is provided with an assembly port at a position deviated from the supporting mechanism, the assembly port is supported with the driving part of the conveyor, the middle of the assembly port is provided with a clamping port, the outer side of the driving part of the conveyor is provided with a downwardly extending clamping plate, the lower half of the clamping plate is matched with the clamping port, the side of the clamping plate is provided with a clamping hole, and the machine box is provided with a pin tube matched with the clamping hole.

5. The straw conveying device for straw fermentation for biogas production according to claim 1, characterized in that, The machine frame comprises a pair of rectangular tubes provided at the bottom of the machine frame, the length direction of the rectangular tubes is consistent with the length direction of the machine frame, and a vehicle bridge mechanism is movably inserted into the two rectangular tubes, and the vehicle bridge mechanism is used to support the front end position of the conveyor after turnover.

6. The straw conveying device for straw fermentation to produce biogas according to claim 5, characterized in that, The vehicle bridge mechanism comprises a pair of insertion square tubes, the length of the insertion square tubes is greater than that of the rectangular tubes, and one end of the insertion square tubes deviated from the supporting mechanism is used to prevent the machine frame from falling.

7. The straw conveying device for straw fermentation biogas production according to claim 6, characterized in that, The vehicle bridge mechanism comprises a bracket connected with the front ends of the two insertion square tubes, the bracket comprises a vertical U-shaped section with an upward opening and a horizontal U-shaped section with an opening facing the driving wheel, the horizontal U-shaped section is arranged in parallel above the rectangular tube, and the vertical U-shaped section and the horizontal U-shaped section are both provided with a locking bolt connected with the conveyor.

8. The straw conveying device for straw fermentation biogas production according to claim 7, characterized in that, The bottom of the conveyor and the position close to the driving wheel are provided with a supporting hopper, the cross section of the supporting hopper is U-shaped and the bottom of the supporting hopper is supported and matched with the top surface of the rectangular tube, and the back surface of the supporting hopper is tightly close to the inner side of the horizontal U-shaped section.

Images