A straw biological feed raw material pretreatment device

Abstract

The present application provides a kind of straw biological feed raw material pretreatment device, belong to straw processing technical field.It includes cooking box, the heating structure is arranged in the cooking box inner chamber;Injection pipe is communicated in the interior of the cooking box, is fixed in the side of the cooking box and is turned over subassembly, is set in the output end of the turning subassembly and is discharged subassembly, is set in the inside of the turning subassembly output shaft and is fixed subassembly.The present application is heated in the process of cooking box, and starts positive and negative motor and drives transmission shaft and turning plate rotation, turning plate is turned over in the process of rotation and is turned over in the interior of cooking box, and straw is gradually softened, and straw is guided with water and is pushed to guide plate rotation in the process of turning plate rotation, so that guide plate and turning plate are forty-five degrees angle of inclusion between, and straw is penetrated through the hole of both ends of turning plate, and is guided in the outside turning of guide plate, so that straw in the middle of cooking box is turned over to outer end in turn, avoid artificial turning over unevenly, improve the effect of straw cooking simultaneously.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of straw processing, in particular to a pretreatment device for straw biological feed raw material. BACKGROUND

[0002] Straw is the general term for the stem and leaf (ear) part of mature crops. It usually refers to the remaining part of crops such as wheat, rice, corn, potatoes, rapeseed, cotton, sugarcane and other crops (usually coarse grains) after harvesting seeds. More than half of the products of photosynthesis of crops exist in straw, which is rich in nitrogen, phosphorus, potassium, calcium, magnesium and organic matter, and is a renewable biological resource with multiple uses.

[0003] Straw cooking is a method of pretreatment of straw biological feed raw material. Through cooking treatment, the structure and properties of straw can be changed, and the nutritional value and digestibility of straw as feed can be improved. However, in the existing cooking process after straw is crushed, the straw segments will float on the water surface during the cooking process due to the light weight of the straw, making it difficult to cook the upper layer of straw segments. Therefore, it is necessary to manually flip the straw segments up and down continuously to ensure uniform cooking and ensure the cooking effect of the straw. However, the temperature during the cooking process of the straw is relatively high, and the cooking water will splash during the manual flipping process of the straw, which will scald the operator, thereby reducing the safety of the operator. At the same time, the efficiency of manual flipping is low, resulting in uneven heating of the straw. Therefore, the present application provides a pretreatment device for straw biological feed raw material to meet the needs. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a pretreatment device for straw biological feed raw material to solve the problem that in the existing cooking process after straw is crushed, the straw segments will float on the water surface during the cooking process due to the light weight of the straw, making it difficult to cook the upper layer of straw segments. Therefore, it is necessary to manually flip the straw segments up and down continuously, and the efficiency of manual flipping is low, resulting in uneven heating of the straw.

[0005] To solve the above technical problems, the present application provides the following technical solutions:

[0006] A pretreatment device for straw biological feed raw material, comprising a cooking box, a heating structure is arranged in the inner cavity of the cooking box; a feeding pipe communicated with the inside of the cooking box, a flipping assembly fixed to the side of the cooking box, a discharging assembly sleeved on the output end of the flipping assembly, and a fixing assembly sleeved on the inside of the output shaft of the flipping assembly; the flipping assembly comprises a forward-reverse motor fixed to the side of the cooking box, a transmission shaft assembled on the output end of the forward-reverse motor, and a flipping plate installed on the outside of the transmission shaft; the fixing assembly comprises a fixing shaft sleeved on the inside of the transmission shaft and a guide plate fixed to the outside of the fixing shaft; the flipping plate and the transmission shaft form a "Wang" shape, and the guide plate is located in the groove between the flipping plate and the transmission shaft.

[0007] Optionally, the straw and water are injected into the cooking box through the injection pipe, and the cooking box heating mechanism heats and cooks the straw and water; the forward and reverse motor drives the turning plate and the guide plate to rotate, and the straw drives the guide plate to rotate, so that the guide plate and the turning plate form a forty-five-degree angle.

[0008] Optionally, the turning plate and the guide plate continue to rotate, the turning plate turns the straw, the straw drives the guide plate, penetrates the turning plate groove, and turns outward under the guidance of the fixed shaft.

[0009] Optionally, the turning assembly further comprises a baffle sleeved in the turning plate, and a first spring connected between the baffle and the turning plate.

[0010] Optionally, the fixing assembly further comprises a limiting rod sleeved at one end of the fixed shaft, an adjusting ring connected at one end of the limiting rod, and a clamping pin installed on the inner wall of the adjusting ring.

[0011] Optionally, the limiting rod is in the shape of a cross, the limiting rod is matched with one end of the fixed shaft, and the middle part of the fixed shaft is provided with a swing block.

[0012] One end of the transmission shaft is provided with a hole matched with the clamping pin, and the clamping pin rotates by forty-five degrees to keep concentric with the hole.

[0013] Optionally, the adjusting ring, the limiting rod, the fixed shaft, and the guide plate rotate by forty-five degrees, the guide plate coincides with the turning plate to form a complete plate, and the adjusting ring and the limiting rod are pushed to be clamped in the hole.

[0014] Optionally, the fixed shaft is consistent with the guide plate; the swing block in the middle part of the fixed shaft pushes the baffle outward during the rotation of the fixed shaft, so that the other end of the baffle contacts the inner wall of the cooking box.

[0015] Optionally, the discharging assembly comprises a transmission ring sleeved outside the transmission shaft, a connecting rod sliding outside the transmission ring, a discharging plate hinged at the bottom of the cooking box, a connecting pad connected between the discharging plate and the cooking box, a butt plate fixed at the bottom of the discharging plate, a butt rod hinged between the connecting rod and the butt plate, a second spring arranged inside the transmission ring, and a limiting clamping pin connected at one end of the second spring.

[0016] Optionally, a rectangular hole is formed in the middle part of the transmission ring, and a limiting hole is formed outside the transmission shaft for clamping the limiting clamping pin; the discharging plate rotates at the hinged part, the transmission ring is pulled downward through the butt plate, the butt rod, and the connecting rod, an eccentricity is formed between the transmission ring and the transmission shaft, and the upper end limiting clamping pin is clamped in the limiting hole.

[0017] Compared with the prior art, the present application has at least the following beneficial effects:

[0018] In the above scheme, during the heating process of the cooking box, the forward and reverse motor is started to drive the transmission shaft and the turning plate to rotate. During the rotation process, the turning plate turns the straw inside the cooking box. The straw gradually becomes soft. During the rotation process of the turning plate, the straw and water drive the guide plate to rotate, so that the guide plate and the turning plate form a forty-five-degree angle. The straw penetrates the holes at both ends of the turning plate and is guided by the guide plate to turn outside. The straw in the middle of the cooking box is turned to the outer end in turn, avoiding uneven manual turning, and improving the effect of straw cooking.

[0019] By rotating the adjusting ring, the limiting rod drives the fixed shaft and the guide plate to rotate, so that the guide plate and the turning plate coincide to form a complete plate. During the rotation of the fixed shaft, the swing block in the middle pushes the baffle to compress the first spring to the two ends respectively. The other end of the baffle is in contact with the inner wall of the cooking box. Water and crushed straw can be placed in the cooking box through the feeding pipe. The feeding pipe is closed. The water is located at the lower end inside the cooking box, and the straw is located at the top of the turning plate and the guide plate. The forward and reverse motor drives the transmission shaft, the turning plate and the fixed assembly to rotate one hundred and eighty degrees. The turning plate and the guide plate limit the straw, so that it is completely located in the water, so that the straw soaking is more uniform, and the straw floating on the water surface due to its light weight is avoided.

[0020] By rotating the hinged shaft, the butt plate, the butt rod and the connecting rod pull down the transmission ring. The transmission ring moves downward along the surface of the transmission shaft through the rectangular hole. The upper end limiting pin is respectively clamped in the limiting hole outside the transmission shaft. The position between the transmission ring and the transmission shaft is fixed, so that the transmission ring and the transmission shaft form an eccentric wheel. The straw falls on the discharge plate and rotates through the transmission shaft and the transmission ring, drives the connecting rod to slide on the outside of the transmission ring, and drives the butt rod, the butt plate and the discharge plate to move up and down, thereby improving the efficiency of straw discharge. BRIEF DESCRIPTION OF DRAWINGS

[0021] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the present application and, together with the description, further serve to explain the principles of the present application and to enable a person skilled in the relevant art to implement and use the present application.

[0022] Figure 1 The appearance structure diagram of the straw biological feed raw material pretreatment device;

[0023] Figure 2 The internal structure diagram of the straw biological feed raw material pretreatment device;

[0024] Figure 3 The side plane structure diagram of the straw biological feed raw material pretreatment device;

[0025] Figure 4 It is the internal stereoscopic structure schematic view of the straw biological feed raw material pretreatment device;

[0026] Figure 5 It is the fixed assembly and turnover assembly cooperation structure schematic view;

[0027] Figure 6 It is the baffle and turnover plate cooperation structure schematic view;

[0028] Figure 7 It is the discharge assembly cross section structure schematic view;

[0029] Figure 8 It is the fixed assembly explosion structure schematic view.

[0030] [Reference signs]

[0031] 100, cooking box; 200, feeding pipe; 300, fixed assembly; 301, adjusting ring; 302, fixed shaft; 303, guide plate; 304, limiting rod; 305, bayonet; 400, turnover assembly; 401, forward and reverse motor; 402, transmission shaft; 403, turnover plate; 404, baffle; 405, first spring; 500, discharge assembly; 501, transmission ring; 502, connecting rod; 503, butt joint rod; 504, butt joint plate; 505, connecting pad; 506, discharge plate; 507, second spring; 508, limiting bayonet.

[0032] As shown in the drawings, in order to clearly realize the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application in the specific structure, device and environment, and according to the specific needs, the devices and environment can be adjusted or modified by those skilled in the art. DETAILED DESCRIPTION

[0033] The straw biological feed raw material pretreatment device provided by the present application is described in detail below in combination with the drawings and specific embodiments. It is explained here that in order to make the embodiments more detailed, the following embodiments are the best and preferred embodiments, and other alternative ways can also be used by those skilled in the art to implement some known technologies; and the drawings are only used to describe the embodiments in more detail, and are not intended to specifically limit the present application.

[0034] It is to be appreciated that the use of any of the following terms "one embodiment," "an embodiment," "some embodiments," "one example," "an example," "some examples," and the like, are not intended to limit the discussion to the specific embodiment or embodiments on which it is used, but rather are intended to recite one or more embodiments that can include features that are shared with one or more other embodiments. Furthermore, although the following discussion can sometimes be presented in terms of specific embodiments, it should be appreciated that a wide variety of programming languages and platforms can be used to implement one or more embodiments as described herein. Unless otherwise indicated, the terms "and," "or," and "exactly one of" are used in the description and in the claims as open-ended transitions to permit interpretation of the features of the embodiments in a non-exclusive manner. For example, the use of "and" or "or" in the claims should not be interpreted to require that features are

[0035] In general, the terminology used herein can be understood at least in part from a consideration of the context. For example, the term "one or more" as used herein, depending at least in part upon the context, can be used to describe any feature, structure, or characteristic in a singular sense or can be used to describe combinations of features, structures, or characteristics in a plural sense. Similarly, the term "based on" as used herein, depending at least in part upon the context, can be understood as a condition of a feature, structure, or characteristic, or can be understood as a condition of a feature, structure, or characteristic combined with one or more other features, structures, or characteristics.

[0036] It will be understood that the terms "on," "over," and "above," in the present disclosure, are to be interpreted in the broadest context, such that "on" not only means "directly on" something, but also includes the meaning of being "on" something with intervening features or layers therebetween, and "over" or "above" not only means "over" or "above" something, but also can include the meaning of being "over" or "above" something with no intervening features or layers therebetween.

[0037] In addition, spatially relative terms, such as "under," "below," "lower," "over," "upper," and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0038] As Figure 1 and Figure 8As shown, the embodiment of the present application provides a straw biological feed raw material pretreatment device, which comprises a cooking box 100, a heating structure arranged in the inner cavity of the cooking box 100, a feeding pipe 200 communicated with the inside of the cooking box 100, a turning assembly 400 fixed to the side of the cooking box 100, a discharging assembly 500 sleeved on the output end of the turning assembly 400, and a fixing assembly 300 sleeved on the inside of the output shaft of the turning assembly 400.

[0039] Straw and water are injected into the cooking box 100 through the feeding pipe 200, and the heating mechanism of the cooking box 100 heats and cooks the straw and water. During the rotation of the turning plate 403 and the guide plate 303 driven by the reversible motor 401, the straw pushes the guide plate 303 to rotate, so that the guide plate 403 and the guide plate 303 form a forty-five-degree angle. The turning plate 403 and the guide plate 303 continuously rotate, the turning plate 403 turns the straw, the straw pushes the guide plate 303, and the straw penetrates the groove of the turning plate 403 and is turned outward under the guidance of the guide plate 303.

[0040] Water and straw are injected into the cooking box 100 through the feeding pipe 200 for soaking, and the straw and water inside are heated and cooked by the heating mechanism. During the cooking process, the transmission shaft 402, the turning plate 403 and the guide plate 303 are rotated by the reversible motor 401. The straw is turned by the rotation of the turning plate 403. During the rotation of the turning plate 403, the straw penetrates the groove of the turning plate 403 and pushes the guide plate 303 to rotate around the fixed shaft 302 as the central axis, so that the guide plate 303 and the turning plate 403 form a forty-five-degree angle, and the fixed shaft 302 and the guide plate 303 are continuously rotated. After the straw penetrates the groove, the straw in the middle of the cooking box 100 is guided by the guide plate 303 to contact the inner wall of the cooking box 100, so that the straw in the cooking box 100 is heated more uniformly, and the cooking effect of the straw is improved.

[0041] As shown in the figure, Figures 2 to 8 The turning assembly 400 further comprises a baffle 404 sleeved on the inside of the turning plate 403, and a first spring 405 connected between the baffle 404 and the turning plate 403.

[0042] The fixing assembly 300 further comprises a limiting rod 304 sleeved on one end of the fixed shaft 302, an adjusting ring 301 connected to one end of the limiting rod 304, and a clamping pin 305 mounted on the inner wall of the adjusting ring 301.

[0043] The limiting rod 304 is in the shape of a cross, the limiting rod 304 is matched with one end of the fixed shaft 302, and the middle part of the fixed shaft 302 is provided with a swing block;

[0044] One end of the transmission shaft 402 is provided with a hole matched with the pin 305, and the pin 305 is rotated by forty-five degrees to keep concentric with the hole.

[0045] The adjusting ring 301, the limiting rod 304, the fixed shaft 302 and the guide plate 303 are rotated by forty-five degrees, the guide plate 303 is overlapped with the turnover plate 403 to form a complete plate, and the adjusting ring 301 and the limiting rod 304 are pushed to make the pin 305 matched in the hole.

[0046] The fixed shaft 302 keeps consistent with the guide plate 303; the swing block in the middle part of the fixed shaft 302 pushes the baffle 404 to the outer end in the rotating process, so that the other end of the baffle 404 is in contact with the inner wall of the cooking box 100.

[0047] The straw needs to be soaked before being cooked, the adjusting ring 301, the limiting rod 304, the fixed shaft 302, the guide plate 303 and the pin 305 are rotated by forty-five degrees, the guide plate 303 is overlapped with the groove of the turnover plate 403 to make the guide plate 303 overlapped with the turnover plate 403 to form a complete plate, the adjusting ring 301 drives the pin 305 to be overlapped with the hole in one end of the transmission shaft 402 in the rotating process, and the adjusting ring 301, the limiting rod 304 and the pin 305 are pushed to make the pin 305 clamped in the hole to fix the guide plate 303 and the turnover plate 403, the swing block in the middle part of the fixed shaft 302 pushes the baffle 404 to the two ends respectively to compress the first spring 405 in the rotating process, and the other end of the baffle 404 is in contact with the inner wall of the cooking box 100 respectively, that is, the water and the crushed straw are placed in the cooking box 100 through the feeding pipe 200, the positive and negative motor 401 drives the transmission shaft 402, the turnover plate 403 and the fixed assembly 300 to rotate by one hundred and eighty degrees, the straw is turned over to the lower end of the cooking box 100 and located in the water through the rotation of the turnover plate 403 and the guide plate 303, and the straw is pressed into the water for soaking through the turnover plate 403 and the guide plate 303.

[0048] As shown in Figures 4 to 7 The discharging assembly 500 includes a transmission ring 501 sleeved on the outside of the transmission shaft 402, a connecting rod 502 sliding on the outside of the transmission ring 501, a discharging plate 506 hinged on the bottom of the cooking box 100, a connecting pad 505 connected between the discharging plate 506 and the cooking box 100, a butt joint plate 504 fixed on the bottom of the discharging plate 506, a butt joint rod 503 hinged between the connecting rod 502 and the butt joint plate 504, a second spring 507 arranged in the inside of the transmission ring 501, and a limiting pin 508 connected to one end of the second spring 507.

[0049] The middle part of the transmission ring 501 is provided with a rectangular hole, and the outer part of the transmission shaft 402 is provided with a limiting hole for clamping the limiting pin 508;

[0050] The discharge plate 506 rotates at the hinged part, and the transmission ring 501 is pulled down by the butt joint plate 504, the butt joint rod 503 and the connecting rod 502, so that the eccentricity is formed between the transmission ring 501 and the transmission shaft 402, and the upper end limiting pin 508 is clamped in the limiting hole.

[0051] After the straw is cooked, the discharge plate 506 is opened to rotate at the hinged shaft, and the transmission ring 501 is pulled down by the butt joint plate 504, the butt joint rod 503 and the connecting rod 502, so that the upper end limiting pin 508 is clamped in the limiting hole of the transmission shaft 402, and the position between the transmission ring 501 and the transmission shaft 402 is fixed, so that the transmission ring 501 and the transmission shaft 402 form an eccentric wheel, the straw falls on the discharge plate 506 and rotates through the transmission shaft 402 and the transmission ring 501, drives the connecting rod 502 to slide on the outer part of the transmission ring 501 and drives the butt joint rod 503, the butt joint plate 504 and the discharge plate 506 to move up and down, thereby improving the efficiency of straw discharge.

[0052] The working principle provided by the application is that the hand-held adjusting ring 301 drives the fixed shaft 302 and the guide plate 303 to rotate through the limiting rod 304, so that the guide plate 303 and the turnover plate 403 coincide to form a complete plate, the adjusting ring 301 drives the pin 305 to coincide with the hole at one end of the transmission shaft 402 during rotation, and pushes the adjusting ring 301, the limiting rod 304 and the pin 305, so that the pin 305 is clamped in the hole to fix the guide plate 303 and the turnover plate 403, and the fixed shaft 302 pushes the baffle 404 to compress the first spring 405 through the middle swing block during rotation, and the other end of the baffle 404 contacts the inner wall of the cooking box 100, so that water and crushed straw can be placed in the cooking box 100 through the feeding pipe 200, the feeding pipe 200 is closed, the water is located at the lower end inside the cooking box 100, and the straw is located at the top of the turnover plate 403 and the guide plate 303, the positive and negative motor 401 is started to drive the transmission shaft 402, the turnover plate 403 and the fixed assembly 300 to rotate one hundred and eighty degrees, the straw is limited by the turnover plate 403 and the guide plate 303, so that it is completely located in the water, and the straw is soaked, and water and straw are injected into the cooking box 100, so that the turnover plate 403 and the guide plate 303 are continuously rotated, so that the straw soaking is more uniform;

[0053] After the straw soaking is completed, the inside water and straw are heated by the steaming box 100, the bayonet 305 is separated from the hole, the fixing of the guide plate 303 is released, the positive and negative motor 401 is started to drive the transmission shaft 402 and the turning plate 403 to rotate during the heating process of the steaming box 100, the turning plate 403 turns over the straw in the steaming box 100 during the rotation process, the straw gradually becomes soft, the straw and water drive the guide plate 303 to rotate during the rotation process of the turning plate 403, the guide plate 303 and the turning plate 403 form a forty-five degree angle, the straw penetrates the holes at both ends of the turning plate 403, and the outside is turned over under the guidance of the guide plate 303, so that the straw in the middle of the steaming box 100 is turned over to the outer end in turn, thereby improving the effect of straw steaming.

[0054] After the straw steaming is completed, the discharge plate 506 is opened to rotate around the hinge shaft, and the transmission ring 501 is pulled down through the butt joint plate 504, the butt joint rod 503 and the connecting rod 502, the transmission ring 501 moves downward along the transmission shaft 402 through the rectangular hole, the upper end limiting bayonet 508 is respectively clamped in the limiting hole outside the transmission shaft 402, the position between the transmission ring 501 and the transmission shaft 402 is fixed, so that the transmission ring 501 and the transmission shaft 402 form an eccentric wheel, the straw falls on the discharge plate 506 and rotates through the transmission shaft 402 and the transmission ring 501, drives the connecting rod 502 to slide on the outer side of the transmission ring 501 and drives the butt joint rod 503, the butt joint plate 504 and the discharge plate 506 to move up and down, thereby improving the efficiency of straw discharge.

[0055] The present application encompasses any substitution, modification, equivalent method and scheme made on the essence and scope of the present application. In order to make the public have a thorough understanding of the present application, the specific details are described in detail in the following preferred embodiments of the present application, and the present application can also be completely understood without the description of these details for those skilled in the art. In addition, in order to avoid unnecessary confusion to the essence of the present application, well-known methods, processes, procedures, elements and circuits are not described in detail.

[0056] The above is only the preferred embodiment of the present application, and it should be pointed out that for ordinary skilled in the art, without departing from the principle of the present application, a number of improvements and refinements can be made, and these improvements and refinements should be regarded as the protection scope of the present application.

Claims

1. A pretreatment device for straw-based biological feed raw materials, characterized in that, It includes a steaming box, and a heating structure is arranged in the inner cavity of the steaming box; A feeding pipe connected to the inside of the steaming box, a turning component fixedly installed on the side of the steaming box, a discharging component sleeved on the output end of the turning component, and a fixing component sleeved inside the output shaft of the turning component; The turning component includes a positive and negative motor fixedly installed on the side of the steaming box, a transmission shaft assembled on the output end of the positive and negative motor, and turning plates installed outside the transmission shaft; The fixing component includes a fixing shaft sleeved inside the transmission shaft, and a guiding plate fixedly installed outside the fixing shaft; The turning plates and the transmission shaft are in a "king" shape, and the guiding plate is located in the groove between the turning plates and the transmission shaft; Straw and water are injected into the steaming box through the feeding pipe, and the heating mechanism of the steaming box heats and steams them. During the process that the positive and negative motor drives the turning plates and the guiding plate to rotate, the straw pushes the guiding plate to rotate, making an angle of 45 degrees between it and the turning plates; The turning plates and the guiding plate continue to rotate. The turning plates turn the straw. The straw will push the guiding plate, penetrate through the groove of the turning plates, and turn outwards under the guidance of the fixing shaft; The turning component further includes a baffle sleeved inside the turning plates, and a first spring connected between the baffle and the turning plates; The fixing component further includes a limiting rod sleeved at one end of the fixing shaft, an adjusting ring connected to one end of the limiting rod, and a clamping pin installed on the inner wall of the adjusting ring; The limiting rod is in a "cross" shape, the limiting rod is adapted to one end of the fixing shaft, and a swinging block is arranged in the middle of the fixing shaft; A hole for clamping with the clamping pin is opened at one end of the transmission shaft, and the clamping pin rotates 45 degrees to be concentric with the hole; 2. The pretreatment device for straw-based biological feed raw materials according to claim 1, characterized in that, The adjusting ring, the limiting rod, the fixing shaft and the guiding plate rotate 45 degrees, the guiding plate coincides with the turning plates to form a complete plate, and the adjusting ring and the limiting rod are pushed, and the clamping pin is clamped in the hole; 3. The pretreatment device for straw-based biological feed raw materials according to claim 2, characterized in that, The fixing shaft and the guiding plate are consistent; During the rotation of the fixing shaft, the swinging block in the middle drives the baffle to push outwards, making the other end of the baffle contact with the inner wall of the steaming box; 4. The pretreatment device for straw-based biological feed raw materials according to claim 1, characterized in that, The discharging component includes a transmission ring sleeved outside the transmission shaft, a connecting rod sliding outside the transmission ring, a discharging plate hinged to the bottom of the steaming box, a connecting pad connected between the discharging plate and the steaming box, a docking plate fixed to the bottom of the discharging plate, a docking rod hinged between the connecting rod and the docking plate, a second spring arranged inside the transmission ring, and a limiting clamping pin connected to one end of the second spring; 5. The pretreatment device for straw-based biological feed raw materials according to claim 4, characterized in that, A rectangular hole is opened in the middle of the transmission ring, and a limiting hole for clamping the limiting clamping pin is opened outside the transmission shaft; The discharging plate rotates around the hinge point, and the transmission ring is pulled downwards through the docking plate, the docking rod and the connecting rod. An eccentricity is formed between the transmission ring and the transmission shaft, and the upper limiting clamping pin is clamped in the limiting hole;

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