Movable excrement treatment machine for livestock and poultry farms

Abstract

The invention discloses a movable excrement treatment machine for livestock and poultry farms, and relates to the technical field of livestock and poultry, and the movable excrement treatment machine comprises a walking carrier for providing a bearing effect and providing movement; the power system provides constant rotating power and is mounted on the walking carrying frame; the conveying and extruding assembly is connected with the output end of the power system to rotate; the solid-liquid separation sieve mechanism is matched with the conveying and extruding assembly, is driven by the power system, then is used for carrying out solid-liquid separation on the collected excrement and is mounted on the walking carrying frame; the sensing and adjusting mechanism is arranged on the conveying and extruding assembly and is used for uniformly stirring the excrement entering the solid-liquid separation sieve mechanism. According to the invention, flexible movement of equipment and efficient solid-liquid separation of excrement are realized; the screen mesh is effectively prevented from being blocked through pure mechanical self-adaptive adjustment, an electronic sensor is not needed, and the reliability is high; the device is suitable for treating livestock and poultry manure with different viscosities and fiber contents, the treatment efficiency is remarkably improved, and the maintenance cost is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of livestock and poultry breeding, in particular to a mobile excrement treatment machine for livestock and poultry farms. BACKGROUND

[0002] In modern large-scale livestock and poultry breeding industry, excrement treatment is not only the core link to maintain the environmental hygiene of the farm, but also the rigid requirement to realize resource recycling and meet the national environmental protection regulations (such as "Livestock and Poultry Scale Breeding Pollution Prevention Regulations"). With the improvement of breeding intensification, the annual excrement amount of large-scale farms in China has exceeded 3.8 billion tons, but the resource utilization rate is still less than 60%, and the low treatment efficiency has become a key bottleneck restricting the green development of the industry. The current mainstream treatment method is solid-liquid separation pretreatment: the liquid part is used for biogas fermentation or standard field return, and the solid part is made into organic fertilizer by composting, but this process highly depends on the stability and adaptability of the front-end separation equipment.

[0003] The existing technology has the following defects: first, the traditional fixed equipment needs to be pre-built with a concrete foundation and supporting pipe network, which has high installation cost and long cycle, and cannot adapt to the layout of the scattered excrement collection points of the farm, resulting in the need for additional transport vehicles for secondary transportation, which not only increases the operating cost, but also easily causes pollution along the way; second, the mobile equipment on the market is mostly simple modification, which lacks dynamic response capability to the physical properties of excrement - when treating pig manure (high viscosity), cow manure (long fibers) or chicken manure (high sand content), the fixed parameter spiral extrusion structure often has problems such as sudden decrease of separation efficiency (solid moisture content fluctuation reaches more than 25%), screen mesh easy to block, etc., which needs frequent manual cleaning, and the time for single blockage and cleaning is 15-30 minutes, which seriously affects continuous operation; third, the existing cleaning mechanism mostly uses fixed pressure scraper, which cannot dynamically adjust the cleaning intensity according to the blockage risk, which may result in ineffective cleaning or accelerated screen mesh wear; fourth, the back pressure control mostly relies on fixed gap or simple spring, which is difficult to ensure separation effect while avoiding equipment overload. More importantly, some "intelligent" equipment that tries to introduce electronic sensors has high failure rate in the harsh working conditions of high humidity, high ammonia and high corrosion in the farm, and the maintenance cost increases sharply, which is difficult to popularize in small and medium-sized farms. Therefore, there is an urgent need for a mobile excrement treatment equipment with reliable structure, no electronic dependence and mechanical self-adaptive capability to solve the industry pain points. SUMMARY

[0004] The purpose of the present application is to provide a mobile excrement treatment machine for livestock and poultry farms, which solves the problems of inconvenient movement of excrement treatment equipment, inability to self-adaptively adjust treatment intensity and easy blockage of screen mesh.

[0005] The present application solves the above technical problems by the following technical solutions: the present application comprises a walking carrier, which provides bearing function and provides movement; A power system is provided to install a constant rotating power on a walking carrier; A conveying and extruding assembly is connected to the output end of the power system to rotate; A solid-liquid separation screen mechanism is driven by the power system to separate the collected excrement after the conveying and extruding assembly is matched and installed on the walking carrier; A sensing and adjusting mechanism is arranged on the conveying and extruding assembly to stir the excrement entering the solid-liquid separation screen mechanism. A cleaning mechanism and a linkage assembly are arranged on the solid-liquid separation screen mechanism to clean the solid-liquid separation screen mechanism, and the stirring resistance in the solid-liquid separation screen mechanism is transmitted by the linkage assembly to positively correlate and adjust the cleaning intensity.

[0006] Preferably, the conveying and extruding assembly includes a hollow shaft, a spiral piece one and a spiral piece two, one end of the hollow shaft is fixed to the output end of the power system, the spiral piece one and the spiral piece two are fixed on the outer wall of the hollow shaft in the axial direction, and the conveying and extruding assembly is matched with the solid-liquid separation screen mechanism to convey the excrement to the other end during rotation.

[0007] Preferably, the diameters of the spiral piece one and the spiral piece two are the same.

[0008] Preferably, the solid-liquid separation screen mechanism includes: A liquid temporary pool is fixed on the top of the walking carrier, both sides are processed with a matching sleeve hole for the spiral piece one and the spiral piece two, and the conveying and extruding assembly can be placed in the sleeve hole to rotate; A feeding structure is fixed on one side of the liquid temporary pool, the spiral piece one is placed in the feeding structure, and the end of the spiral piece one is movably sleeved on the hollow shaft; A back pressure structure is movably arranged on the hollow shaft and abuts against one side of the liquid temporary pool, and the back pressure structure provides a resistance opposite to the direction of excrement discharge of the spiral piece two to press the excrement for solid-liquid separation; A separation net cylinder is sleeved on the spiral piece two and placed in the liquid temporary pool to be fixed, and the separation net cylinder separates the excrement conveyed into the separation net cylinder into solid and liquid; A bearing support frame is movably sleeved on one end of the hollow shaft and fixed with the liquid temporary pool to support one end of the hollow shaft to provide a rotating action.

[0009] Preferably, the back pressure structure includes a locking sleeve, a back pressure spring and a pressure plate, the locking sleeve is movably sleeved on the hollow shaft to adjust the position, one side of the locking sleeve is connected with the back pressure spring, the back pressure spring is in a yielding state, and the pressure plate is connected with the liquid temporary pool to abut against the sleeve hole to block the sleeve hole to provide a resistance opposite to the direction of excrement discharge.

[0010] Preferably, the sensing and adjusting mechanism includes: A resistance sleeve is movably sleeved on the hollow shaft and located between the spiral piece one and the spiral piece two; Pistons, provided with two and sliding in the hollow shaft; Steel wire ropes, provided with two and distributed in the hollow shaft axis symmetry between the two pistons; Threaded column nails, used to connect and fix one piston with the resistance sleeve; Extrinsic variable parts, penetrating the hollow shaft to connect the other piston and axially sliding; Blocking rings, fixed on the hollow shaft; Resistance springs, provided between the extrinsic variable parts and the blocking rings; The hollow shaft is provided with openings along the outer wall direction, through which the coaxial deflection of the resistance sleeve, the piston and the hollow shaft can be provided. The axial openings on the hollow shaft provide sliding for the extrinsic variable parts. The deflection of the piston on the same side of the resistance sleeve pulls the steel wire rope to form torsion, causing the piston on one side of the extrinsic variable part to slide and form two pistons close to each other, causing the resistance spring to deform and yield.

[0011] Preferably, the cleaning mechanism comprises: Rolling ring parts, provided with two and coaxially sleeved on the separation screen drum for rotation; Connecting rods, provided with at least one, used to connect the two rolling ring parts and adjust the distance; Scraping assemblies, connected between the two rolling ring parts, which can adapt to the contact relationship with the separation screen drum due to the change of the distance between the rolling ring parts; Positioning wheels, fixed on the liquid temporary pool, maintaining the positional relationship of one side connecting rod with the liquid temporary pool and rolling contact with the positioning wheels.

[0012] Preferably, The rolling ring part comprises a ring plate and a roller, the ring plate is sleeved on the separation screen drum and three rollers are circumferentially equidistantly arranged and in rolling contact with the separation screen drum; The connecting rod comprises a double-headed screw, a blocking ring and an adjusting nut, the double-headed screw is threadedly connected with the adjusting nut at both ends to limit the two rolling ring parts, the double-headed screw is fixedly sleeved with two blocking rings between the two rolling ring parts, and a return spring is arranged between the blocking ring and the single-sided rolling ring part to limit and block the rolling ring part through the adjusting nut; The scraping assembly comprises two mounting ears, two mounting ears are respectively mounted on the two rolling ring parts and then rotatably connected with movable arms, the free ends of the two movable arms are rotatably connected with a mounting strip, and a scraping strip is movably mounted on the mounting strip for scraping contact with the separation screen drum.

[0013] Preferably, the linkage assembly is used to transmit the stroke variable of the external variable member to one side of the connecting rod, forming the spacing adjustment of the two connecting rods, which includes a triangular strip, a movable rod and a linkage wheel, the triangular strip is installed on the walking carrier and has a movable rod, both ends of the movable rod are provided with linkage wheels, and the linkage wheels transmit the stroke variable after stable contact with the corresponding external variable member and the connecting rod.

[0014] Preferably, the walking carrier is provided with a driving assembly on one side for providing rotating power of the cleaning mechanism, including an extension arm, a servo motor and a connecting shaft, and a driving wheel, the extension arm is fixed on the walking carrier and installs the servo motor, the output end of the servo motor is fixed with the connecting shaft, and then the driving wheel is fixed to synchronously drive the rolling ring member in contact with the positioning wheel.

[0015] Compared with the prior art, the present application has the following beneficial effects: I. Global movement and precise regional operation capability The walking carrier adopts a high-strength steel chassis, integrates a combination of front universal wheels and rear driving wheels, and has a lifting support foot system. The device can be flexibly transferred on a muddy and uneven breeding site surface, and realizes an operation mode of "manure producing point being a treatment point". The long-distance transportation link of manure is completely eliminated, and the risk of secondary pollution is reduced. The support foot is stably grounded during work, effectively inhibits vibration, and ensures stable and efficient separation process. It is suitable for modern breeding farms with more than 1,000 heads and regional dispersion, and significantly improves the timeliness and site adaptability of manure treatment.

[0016] II. Pure mechanical self-sensing and self-adjusting intelligent closed loop The innovative sensing and adjusting mechanism converts the manure stirring resistance into a standardized displacement variable in real time through a pure mechanical link of resistance sleeve deflection, piston displacement, steel wire rope transmission and external variable member output, without electronic sensors throughout the process. The variable is accurately transmitted to the cleaning mechanism through the linkage assembly, so that the scraping pressure and the risk of blockage are dynamically matched in positive correlation: when the resistance increases, the scraping strength is automatically enhanced, and when the resistance decreases, the flexible contact avoids the wear of the screen mesh. The mechanical intelligent closed loop has a reliability far exceeding the electronic scheme in a high-humidity and high-corrosion environment, with a failure rate reduced by 80%, and greatly reduces the equipment cost and maintenance threshold, truly realizing the self-adaptive control of "the more blocked, the more clean, and the blocked being relieved".

[0017] III. Dynamic back pressure and self-adaptive cleaning double anti-blocking mechanism The back pressure spring structure automatically adjusts the discharge gap according to the manure thrust, dynamically maintains the appropriate separation pressure; the separation screen cylinder adopts a 0.8mm precision screen gap + laser micro-textured surface (groove depth 20μm), reduces the adhesion rate; cooperates with the self-adaptive scraping system, the double mechanism cooperates, prolongs the interval of screen mesh blockage, improves the solid separation efficiency, and reduces the frequency of manual intervention.

[0018] IV. Energy-saving universality and modular operation and maintenance advantages The power system variable frequency control (300-1500rpm stepless speed regulation) precisely matches different feces characteristics; the device has strong robustness for multiple source feces of pigs, cows, chickens and the like and working conditions with sand content of ≤5%; key components (separation net cylinder, scraping strip, spiral blade) adopt modular quick release design, which shortens the replacement time. The design not only meets the strict requirements of the environmental protection department on treatment efficiency and emission standard, but also has the characteristics of high reliability and low operation and maintenance cost, provides an economic and feasible solution for small and medium-sized farms, and has broad industrialization popularization value. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the sectional structure of the present application; Figure 1 Figure 3 It is a schematic diagram of the partial structure of the present application; Figure 1 Figure 4 It is a schematic diagram of the structure of the present application from another perspective; Figure 3 Figure 5 It is a schematic diagram of the structure of the present application in conveying and extruding assembly; Figure 4 Figure 6 It is a schematic diagram of the structure of the present application in sensing and adjusting mechanism; Figure 4 Figure 7 It is a schematic diagram of the structure of the present application in cleaning mechanism, linkage assembly and driving assembly; Figure 4 Figure 8 It is a schematic diagram of the structure of the present application at A; Figure 7 Figure 9 It is a schematic diagram of the structure of the present application at B. Figure 7

[0020] Numerical representation in the figure: ​​​​​​​​1. Walking frame; 2. Power system; 3. Conveying and extrusion assembly; 31. Hollow shaft; 32. Spiral blade one; 33. Spiral blade two; 4. Solid-liquid separation screen mechanism; 41. Liquid retention tank; 42. Feeding structure; 421. Single-port cylinder; 422. Conveying interface; 43. Back pressure structure; 431. Locking sleeve; 432. Back pressure spring; 433. Pressure plate; 44. Separating screen cylinder; 45. Bearing support frame; 5. Sensing and adjusting mechanism; 51. Resistance sleeve; 52. Piston; 53. Steel wire rope; 54. Threaded stud; 55. External variable component; 56. Resistance... 57. Retaining ring; 6. Resistance spring; 7. Cleaning mechanism; 8. Rolling ring; 9. Ring plate; 10. Roller; 11. Connecting rod; 12. Double-ended screw; 13. Barrier ring; 14. Adjusting nut; 15. Return spring; 26. Scraping assembly; 37. Mounting ear; 48. Movable arm; 59. Mounting strip; 60. Scraper; 71. Positioning wheel; 82. Linkage assembly; 93. Triangular bar; 104. Movable rod; 11. Linkage wheel; 12. Drive assembly; 13. Extended arm; 14. Servo motor; 15. Connecting shaft; 16. Drive wheel. Detailed Implementation

[0021] The above-mentioned and other technical features and advantages of the present invention will be described in more detail below with reference to the accompanying drawings.

[0022] Example 1 This embodiment provides a technical solution: a mobile manure treatment machine for livestock and poultry farms, such as... Figures 1-4 As shown, the system includes a traveling frame 1 that provides load-bearing capacity and mobility, and a power system 2 mounted on the traveling frame 1 that provides constant rotational power. In this embodiment, the traveling frame 1 serves as the basic structure of the entire sewage treatment machine, and is a rectangular chassis frame welded from high-strength steel. Its specific structure is as follows: Figure 1 and Figure 2 As shown. It includes: a base frame, welded from an 80×40mm rectangular steel channel, providing sufficient strength to bear the entire machine's workload; four casters, two at the front being swivel casters and two at the rear being drive casters, each 60mm in diameter, with tires made of wear-resistant rubber, suitable for movement on uneven ground in livestock farms; mounting holes for equipment installation. Adjustable support feet (not shown) are also provided at the four corners of the base. These supports can be lowered during operation to improve stability and prevent vibration; they can be folded up for movement without obstructing the equipment. This manure treatment machine possesses excellent mobility and operational stability, making it particularly suitable for regional manure treatment operations in large-scale livestock and poultry farms.

[0023] In order to provide constant driving power, the power system 2 belongs to the prior art components, fixed by bolt installation on the walking carrier 1. The power system includes: the main drive motor, using 11kW three-phase asynchronous motor, protection level IP55, suitable for use in the humid environment of the farm; the reduction transmission box is directly connected with the output shaft of the main drive motor, adopts the helical gear reduction structure, the reduction ratio is 15:1, and the output torque is sufficient; the power output shaft is connected with the output end of the reduction transmission box, and the connecting flange is arranged to be connected by bolts, so that the power transmission is stable and reliable; the frequency conversion controller is installed in the waterproof control box on the side of the base, and the motor speed can be adjusted in the range of 300-1500rpm, so as to adapt to the requirements of livestock manure treatment under different humidity and viscosity. The power system is provided with a damping pad at the bottom, which can effectively reduce the influence of working vibration on the stability of the equipment. The power system is provided with a detachable protective shell, which can prevent the liquid manure from penetrating into the motor and transmission components, and ensure long-term stable operation. Therefore, the power system 2 provides continuous and stable rotating power for the whole manure treatment machine, so that the solid-liquid separation process is carried out efficiently.

[0024] In order to transport the solid-liquid of the manure, the conveying and extruding assembly 3 is arranged, as shown in Figure 5 , which includes a hollow shaft 31, a spiral piece one 32 and a spiral piece two 33. The hollow shaft 31 is rigidly connected with the output end of the power system 2 through the flange plate at one end, receives the rotating power and transmits the torque; the spiral piece one 32 and the spiral piece two 33 are fixed on the outer wall of the hollow shaft 31 in the axial direction, and the diameters of the spiral piece one 32 and the spiral piece two 33 are the same. In terms of specific manufacturing process, the hollow shaft 31 is made of 304 stainless steel seamless steel pipe, and the inner wall is polished to have a roughness Ra≤1.6μm; the spiral piece one 32 is formed by laser cutting a 4mm thick 316L stainless steel plate, has a pitch of 220mm, and is continuously full-welded and fixed to the right end of the hollow shaft 31 through argon arc welding; the spiral piece two 33 is made of a 5mm thick 316L stainless steel plate, has a pitch of 160mm, and is welded and fixed to the right end of the hollow shaft 31; during work, the spiral piece one 32 and the spiral piece two 33 are matched with the solid-liquid separation screen mechanism 4 under the rotation of the hollow shaft 31, convey and apply pressure to the collected manure from the right end to the left end, and promote the separation of liquid.

[0025] In order to cooperate with the conveying and extruding assembly 3 to complete the solid-liquid separation of the manure, the solid-liquid separation screen mechanism 4 is fixedly installed on the top of the walking carrier 1, as shown in Figure 3 , Figure 4As shown, it includes a liquid temporary pool 41, a feeding structure 42, a back pressure structure 43, a separation net cylinder 44 and a bearing support frame 45. The liquid temporary pool 41 is an open pool-shaped structure formed by welding a 304 stainless steel plate, the left and right side plates are 6mm thick steel plates, the center of the steel plate is accurately processed with a sleeve hole for supporting the hollow shaft 31 and ensuring the rotation coaxiality; the bottom of the liquid temporary pool 41 is designed as a 5° inclined flow guide surface to guide the separated liquid to the center for discharge.

[0026] The feeding structure 42 is arranged at the right end of the liquid temporary pool 41 and includes a single-port cylinder 421 and a feeding interface 422, the open end of the single-port cylinder 421 is fixed to the right side steel plate of the liquid temporary pool 41 by bolts, the closed end is provided with a sealing bearing to form a dynamic sealing cooperation with the hollow shaft 31, the feeding interface 422 is vertically welded on the upper side of the single-port cylinder 421 and is connected with an external excrement conveying pump; the single-port cylinder 421 internally accommodates the initial segment of the helical blade one 32 to realize the preliminary introduction and crushing of the excrement.

[0027] The back pressure structure 43 is arranged at the left end of the liquid temporary pool 41 and is movably sleeved on the hollow shaft 31 and includes a locking sleeve 431, a back pressure spring 432 and a pressure plate 433; the locking sleeve 431 can be adjusted in position along the hollow shaft 31 and is locked by a locking screw, one side of the locking sleeve 431 is connected with the back pressure spring 432 to adjust the pre-compression deformation amount through the locking sleeve 431, the other end of the back pressure spring 432 is connected with the pressure plate 433, when the excrement thrust exceeds the set threshold value, the back pressure spring 432 yields to deform to make the pressure plate 433 form a discharge gap with the left end surface of the liquid temporary pool 41 to realize the pressure self-balancing.

[0028] The separation net cylinder 44 is a 304 stainless steel wedge-shaped wire welded structure with a screen gap width of 0.8mm, is sleeved on the outside of the helical blade two 33 and is fixed in the liquid temporary pool 41, and the separation net cylinder 44 maintains a constant working gap of 2mm with the outer edge of the helical blade two 33; the surface of the separation net cylinder 44 is treated by laser micro-texture processing with a groove depth of 20μm to reduce the adhesion rate of the excrement. The bearing support frame 45 is movably sleeved on the left end of the hollow shaft 31 and is fixed with the left side of the liquid temporary pool 41, and is internally provided with double-row self-aligning roller bearings to provide stable rotating support for the whole conveying and extruding assembly 3.

[0029] Based on the working principle of the embodiment: when the device is running, the main drive motor of the power system 2 is started, the power is transmitted to the power output shaft through the reduction gearbox, and then the hollow shaft 31 of the conveying and extruding assembly 3 is rotated. The helical blade one 32 and the helical blade two 33 on the hollow shaft 31 rotate to form a continuous conveying force.

[0030] The livestock and poultry excrement enters the single-port cylinder 421 from the feeding interface 422 of the feeding structure 42 through the external conveying equipment. Under the pushing of the helical blade one 32, the excrement is preliminarily conveyed and then enters the area of the helical blade two 33.

[0031] Under the action of the back pressure structure 43, when the excrement pushing force exceeds the threshold value set by the back pressure spring 432, the pressure plate 433 forms a suitable discharge gap with the left end surface of the liquid temporary pool 41, so that the excrement is continuously and stably extruded in the separation net cylinder 44. In this process, the liquid component penetrates through the 0.8mm screen gap of the separation net cylinder 44 and flows into the 5° inclined liquid temporary pool 41 at the bottom, and is discharged through the flow guide design; while the solid component is discharged from the left discharge end under the continuous pushing of the helical blade two 33, realizing solid-liquid separation.

[0032] During the whole working process, the adjustable support feet of the walking carrier 1 provide stable support, ensuring that the device has minimal vibration during processing. The variable frequency controller of the power system 2 can adjust the motor speed in the range of 300-1500rpm according to the humidity and viscosity characteristics of the excrement, to optimize the solid-liquid separation effect.

[0033] The device can be moved flexibly in the farm through the moving wheels of the walking carrier 1, and is suitable for excrement treatment needs in different areas, realizing efficient and mobile treatment of excrement in livestock and poultry farms, reducing the limitations of traditional fixed treatment equipment, and improving resource utilization efficiency.

[0034] Example Two This embodiment is further optimized on the basis of example one, and the same parts as the foregoing technical solutions will not be repeated here, such as Figure 2 As shown in the figure, further to better realize the present application, especially the following setting method is adopted: Because the fiber length of excrement is different, when the resistance intensity increases during stirring through the resistance sleeve 51, the probability of blockage of the separation net cylinder 44 during processing increases, and when the input increases, the working intensity of the separation net cylinder 44 increases, therefore, the sensing and adjusting mechanism 5 is set to facilitate sensing the processing intensity brought by the input of excrement to the separation net cylinder 44 during excrement solid-liquid separation.

[0035] The sensing and adjusting mechanism 5 is arranged on the conveying and extruding assembly 3, such as Figure 6As shown, it includes resistance sleeve 51, piston 52, steel wire rope 53, threaded stud 54, external variable element 55, blocking ring 56 and resistance spring 57. Resistance sleeve 51 is movably sleeved on hollow shaft 31 and located between spiral fin one 32 and spiral fin two 33, and a plurality of stirring extension rods are arranged on the outer periphery of resistance sleeve 51 for stirring the excrement entering into solid-liquid separation screen mechanism 4, so as to facilitate uniform stress when subsequent compression separation of solid and liquid; two pistons 52 are slidingly installed in the inner cavity of hollow shaft 31, one of which is fixedly connected with resistance sleeve 51 through threaded stud 54; two steel wire ropes 53 are symmetrically distributed with respect to the axis of hollow shaft 31, and the two ends thereof are respectively connected with two pistons 52; external variable element 55 penetrates through the pipe wall of hollow shaft 31, and an axial long slot is arranged on the pipe wall of hollow shaft 31, and external variable element 55 connected with the other piston 52 can slide axially through the axial long slot; blocking ring 56 is fixed on the outer wall of hollow shaft 31; resistance spring 57 is arranged between external variable element 55 and blocking ring 56, and provides a reset force and sets a yield threshold. Radial fan-shaped openings are arranged on the pipe wall of hollow shaft 31 to allow threaded stud 54 to slide, and coaxial deflection of resistance sleeve 51 and piston 52 is formed.

[0036] Working principle: when the viscosity of excrement is large or the amount is large, the working strength requirement of separation net cylinder 44 is increased, which is easy to cause blockage and reduce the solid-liquid separation efficiency, so that the stirring extension rod is blocked and increased, coaxial deflection of resistance sleeve 51 is generated; the deflection is transmitted to the same side piston 52 through threaded stud 54, and the steel wire rope 53 is twisted; the torsion of steel wire rope 53 makes the other side piston 52 slide, and the distance between two pistons 52 is reduced; the distance reduction drives the axial movement of external variable element 55, and the deformation yield of resistance spring 57 is generated; the displacement amount of external variable element 55 is positively correlated with the stirring resistance, and a standardized mechanical variable output is formed.

[0037] In order to clean the surface of separation net cylinder 44 blocked by solid-liquid separation, cleaning mechanism 6 is arranged on solid-liquid separation screen mechanism 4, as shown in FIG. 6. Figures 7-9As shown, a cleaning separation net cylinder 44, which includes a rolling ring 61, a connecting rod 62 and a scraping assembly 63. Two rolling rings 61 are symmetrically set on the separation net cylinder 44, each rolling ring 61 is composed of a ring plate 611 and three rollers 612, the ring plate 611 is set on the outside of the separation net cylinder 44, and the three rollers 612 are evenly distributed at 120° on the inside of the ring plate 611, and are in rolling contact with the outer surface of the separation net cylinder 44. Three connecting rods 62 are provided, which are evenly distributed at 120° in the circumference, for connecting two rolling rings 61 and synchronously adjusting the distance; each connecting rod 62 is composed of a double-headed screw rod 621, two blocking rings 622, two adjusting nuts 623 and two reset springs 624, the double-headed screw rod 621 is threadedly connected with the adjusting nuts 623 at both ends to limit the two rolling rings 61, the two blocking rings 622 are fixedly set on the double-headed screw rod 621 between the two rolling rings 61, and the reset spring 624 is arranged between the blocking ring 622 and the single-sided rolling ring 61 to provide elastic buffering.

[0038] The scraping assembly 63 is connected between the two rolling rings 61, including two mounting ears 631, two movable arms 632, a mounting strip 633 and a scraping strip 634; the two mounting ears 631 are respectively fixed on the two rolling rings 61, and are both rotationally connected with the movable arms 632; the free ends of the two movable arms 632 are rotationally connected with the mounting strip 633; the scraping strip 634 is made of polyurethane material with a Shore hardness of 70A, and is movably mounted on the mounting strip 633 by screws, and is always in contact with the surface of the separation net cylinder 44, and rotates with the rolling ring 61 to scrape and clean. In addition, a positioning wheel 64 is fixed on the solid-liquid separation screen mechanism 4, and is in rolling contact with one of the connecting rods 62, so as to fix the relative position of the connecting rod 62 on the side and the liquid temporary pool 41.

[0039] In order to provide the excrement treatment state sensed by the sensing adjustment mechanism 5 to the cleaning mechanism 6, the linkage assembly 7 and the driving assembly 8 are respectively used for transmitting variables and providing cleaning power, as shown. Figure 7 The linkage assembly 7 includes a triangular strip 71, a movable rod 72 and a linkage wheel 73, the triangular strip 71 is fixedly installed on the walking carrier 1, the movable rod 72 is slidably installed on the triangular strip 71, and the linkage wheel 73 is arranged at both ends of the movable rod 72; the two linkage wheels 73 are respectively in stable contact with the external variable element 55 and one of the connecting rods 62, so as to transmit the stroke variable of the external variable element 55 to the connecting rod 62, adjust the synchronous distance of the three connecting rods 62, and change the contact pressure of the scraping strip 634 on the separation net cylinder 44. At the same time, the contact mode of the scraping strip 634 with the cleaning mechanism 6 is divided into close contact (distance 1-1.5mm), contact (the scraping strip 634 does not deform when in contact) and pressure contact (the scraping strip 634 deforms).

[0040] In order to rotate the cleaning mechanism 6, a driving assembly 8 is arranged; the driving assembly 8 comprises an extension arm 81, a servo motor 82, a connecting shaft 83 and a driving wheel 84, the extension arm 81 is fixed on the walking carrier 1, a servo motor 82 is installed at the end of the extension arm 81 and connected with a control switch, the output end of the servo motor 82 is fixedly connected with the connecting shaft 83, and the connecting shaft 83 is fixedly connected with the driving wheel 84; the driving wheel 84 is in contact with the outer wall of the rolling ring 61 on the same side of the positioning wheel 64, and the whole cleaning mechanism 6 can be driven to rotate by friction or meshing mode to clean the separation screen cylinder 44; the rotating speed of the servo motor 82 is adjustable between 5-30 rpm, and the phase difference control with the main driving system is adopted to avoid resonance. In the embodiment, the driving wheel 84 and the outer circle of the ring plate 611 are all processed with meshing teeth to drive in the meshing mode.

[0041] Working process: after the equipment is started, the excrement is pressed into the single-port cylinder 421 through the right material conveying interface 422 by the external conveying pump; the power system 2 drives the hollow shaft 31 to rotate in a rotating direction to ensure that the material is conveyed from right to left, and the spiral blade one 32 is driven to push the excrement quickly; after the excrement enters the transition area, the stirring extension rod of the sensing adjustment mechanism 5 is stirred to prevent accumulation; then the excrement enters the spiral blade two 33 area, and under the back pressure formed by the left back pressure structure 43, the liquid is discharged through the screen gap of the separation screen cylinder 44, and the solid residue is pushed to the left discharge end; at the same time, the sensing adjustment mechanism 5 automatically generates displacement variables according to the excrement resistance, adjusts the scraping pressure of the cleaning mechanism 6 through the linkage assembly 7; the driving assembly 8 drives the cleaning mechanism 6 to rotate, the three connecting rods 62 form a triangular stable structure, and the scraper strips 634 uniformly clean the surface of the separation screen cylinder 44 to prevent the screen hole from being blocked; during the whole process, the cleaning intensity is positively correlated with the stirring resistance, and self-adaptive adjustment is realized.

[0042] The above only describes the preferred embodiments of the present application, which are only illustrative but not limiting. Those skilled in the art understand that many changes, modifications and even equivalents can be made to the present application within the spirit and scope defined by the claims of the present application, and all of them will fall within the protection scope of the present application.

Claims

1. A mobile manure treatment machine for livestock and poultry farms, characterized in that, include: The mobile carrier (1) provides load-bearing function and provides mobility; The power system (2) provides constant rotational power and is mounted on the traveling frame (1); The conveying extrusion assembly (3) is connected to the output end of the power system (2) to rotate; The solid-liquid separation screen mechanism (4), in cooperation with the conveying and extrusion assembly (3), is driven by the power system (2) to separate the collected feces into solid and liquid components, and is installed on the walking frame (1). The sensing and regulating mechanism (5) is set on the conveying and squeezing assembly (3) to stir the feces entering the solid-liquid separation screen mechanism (4); The cleaning mechanism (6) and the linkage component (7) are set on the solid-liquid separation screen mechanism (4) for cleaning the solid-liquid separation screen mechanism (4). The cleaning intensity is positively adjusted by the linkage component (7) through the sensing and adjustment mechanism (5) to control the agitation resistance in the solid-liquid separation screen mechanism (4).

2. The mobile manure treatment machine for livestock and poultry farms as described in claim 1, characterized in that, The conveying and extrusion assembly (3) includes a hollow shaft (31), a spiral blade one (32) and a spiral blade two (33). One end of the hollow shaft (31) is fixed to the output end of the power system (2). The spiral blade one (32) and the spiral blade two (33) are fixed on the outer wall of the hollow shaft (31) along the axial direction. When the shaft rotates, it cooperates with the solid-liquid separation screen mechanism (4) to convey feces to the other end.

3. The mobile manure treatment machine for livestock and poultry farms as described in claim 2, characterized in that, The diameters of the first spiral blade (32) and the second spiral blade (33) are the same.

4. The mobile manure treatment machine for livestock and poultry farms as described in claim 2, characterized in that, The solid-liquid separation sieve mechanism (4) includes: The liquid retention tank (41) is fixed on the top of the traveling frame (1). Both sides are machined with sleeve holes for matching spiral blade one (32) and spiral blade two (33), which can be rotated when the conveying extrusion assembly (3) is placed in the sleeve holes. The feeding structure (42) is fixed on one side of the liquid retention tank (41), and the spiral blade (32) is placed inside the feeding structure (42). The end of the spiral blade (32) is movably sleeved on the hollow shaft (31). The back pressure structure (43) is movably set on the hollow shaft (31) and abuts against one side of the liquid retention tank (41). It provides resistance opposite to the direction of the discharge of feces by the spiral blade (33) to pressurize the feces and separate the solid and liquid. The separation screen (44) is fitted onto the spiral blade (33) and fixed inside the liquid retention tank (41) to separate the feces transported to the separation screen (44) into solid and liquid components. The bearing support frame (45) is movably sleeved on one end of the hollow shaft (31) and fixed to the liquid retention tank (41), supporting one end of the hollow shaft (31) to provide rotation.

5. The mobile manure treatment machine for livestock and poultry farms as described in claim 4, characterized in that, The back pressure structure (43) includes a locking sleeve (431), a back pressure spring (432), and a pressure plate (433). The locking sleeve (431) is fitted on the hollow shaft (31) and its position can be adjusted. The locking sleeve (431) is connected to a back pressure spring (432) on one side. When the back pressure spring (432) is in the yielding state, it connects to the pressure plate (433) and abuts against the liquid retention tank (41) to block the sleeve hole, so as to provide resistance opposite to the direction of fecal discharge.

6. The mobile manure treatment machine for livestock and poultry farms as described in claim 4, characterized in that, The sensing and adjustment mechanism (5) includes: The resistance sleeve (51) is movably sleeved on the hollow shaft (31) and located between the first spiral blade (32) and the second spiral blade (33); Pistons (52) are provided in two and slide inside a hollow shaft (31); Two steel wire ropes (53) are provided and are symmetrically distributed around the hollow shaft (31) between the two pistons (52); A threaded stud (54) is used to connect and fix one of its pistons (52) to the resistance sleeve (51); An external variable component (55) passes through a hollow shaft (31) and connects to another piston (52), and can slide axially; A retaining ring (56) is fixed on a hollow shaft (31); A resistance spring (57) is disposed between the external variable element (55) and the blocking ring (56); The hollow shaft (31) has an opening along the outer wall direction, which can provide coaxial deflection of the resistance sleeve (51), piston (52) and hollow shaft (31). The hollow shaft (31) has an axial opening to provide sliding for the external variable element (55). The piston (52) on the same side of the resistance sleeve (51) deflects and pulls the wire rope (53) to form a torsion, causing the piston (52) on one side of the external variable element (55) to slide and form two pistons (52) to come close together, causing the resistance spring (57) to deform and yield.

7. The mobile manure treatment machine for livestock and poultry farms as described in claim 4, characterized in that, The cleaning mechanism (6) includes: Two rolling rings (61) are provided and are fitted onto the separating net cylinder (44) and rotate coaxially. The connecting rod (62) is provided with at least one for connecting two rolling rings (61) and the spacing is adjustable; The scraping assembly (63) is connected between two rolling rings (61) and can adjust the contact relationship with the separating mesh cylinder (44) as the spacing of the rolling rings (61) changes. The positioning wheel (64) is fixed on the liquid retention tank (41) to maintain the positional relationship between the connecting rod (62) on one side and the liquid retention tank (41), and to make rolling contact with the positioning wheel (64).

8. The mobile manure treatment machine for livestock and poultry farms as described in claim 7, characterized in that, The rolling ring (61) includes a ring plate (611) and rollers (612). The ring plate (611) is sleeved on the separating net cylinder (44) and three rollers (612) are equidistantly arranged around the circumference to make rolling contact with the separating net cylinder (44). The connecting rod (62) includes a double-ended screw (621), a blocking ring (622), and an adjusting nut (623). The two ends of the double-ended screw (621) are threaded with adjusting nuts (623) to restrict the two rolling ring parts (61). Two blocking rings (622) are fixedly sleeved on the double-ended screw (621) between the two rolling ring parts (61). A return spring (624) is provided between the blocking ring (622) and the single-sided rolling ring part (61) to restrict and block the rolling ring part (61) through the adjusting nut (623). The scraping assembly (63) includes two mounting ears (631), which are respectively mounted on two rolling rings (61) and are rotatably connected to movable arms (632). The free ends of the two movable arms (632) are rotatably connected to the mounting strip (633), and a scraper (634) is movably mounted on the mounting strip (633) for scraping the contact separation mesh cylinder (44).

9. The mobile manure treatment machine for livestock and poultry farms as described in claim 7, characterized in that, The linkage component (7) is used to transmit the stroke variable of the external variable component (55) to the connecting rod (62) on one side, thereby adjusting the distance between the two connecting rods (62). It includes a triangular bar (71), a movable rod (72) and a linkage wheel (73). The triangular bar (71) is mounted on the walking frame (1) and has a slidable movable rod (72). Both ends of the movable rod (72) are provided with linkage wheels (73). After the linkage wheel (73) makes stable contact with the corresponding external variable component (55) and the connecting rod (62), it transmits the stroke variable.

10. The mobile manure treatment machine for livestock and poultry farms as described in claim 7, characterized in that, A drive assembly (8) is provided on one side of the walking frame (1) to provide rotational power for the cleaning mechanism (6), including an extension arm (81), a servo motor (82), a connecting shaft (83), and a drive wheel (84). The extension arm (81) is fixed on the walking frame (1) and the servo motor (82) is installed thereon. The output end of the servo motor (82) is fixed to the connecting shaft (83) and then fixed to the drive wheel (84) and the rolling ring (61) of the contact positioning wheel (64) for synchronous drive.

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