Lifting cover device for compost fermentation tank

Abstract

The utility model belongs to compost fermentation tank technical field discloses a kind of lift cover devices of compost fermentation tank, including box frame, the one side position of the upper end width direction of box frame is rotatably connected with rotating shaft, rotating shaft one end transmission connection has the power output end of speed reducer, the power input end of speed reducer transmission connection has the power output end of motor, the power output shaft position of one side of speed reducer is provided with photoelectric sensor, speed reducer is fixed simultaneously installed on box frame, rotating shaft outer surface is fixedly connected with upper cover;The utility model whole simple structure can optimize the driving structure of upper cover in compost fermentation tank body use, provide sufficient and stable torque, satisfy the lift demand of large size, large weight upper cover, improve use effect.

Description

Technical Field

[0001] This utility model belongs to the technical field of composting fermentation boxes, specifically, it relates to a lifting cover device for a composting fermentation box. Background Technology

[0002] The composting fermentation box is the core equipment in the composting process. Its main function is to provide a controllable and efficient environment for the maturation and fermentation of organic waste. It can collect organic waste such as straw, livestock and poultry manure, and kitchen waste, and accelerate the activity of microorganisms by creating suitable conditions, so as to promote the rapid decomposition and transformation of these wastes and ultimately form nutrient-rich organic fertilizer.

[0003] The hinged lid of a composting fermentation tank is a crucial component ensuring a stable and efficient fermentation process. On one hand, it creates a relatively enclosed environment, minimizing external interference. On the other hand, its opening and closing is a key mechanism for regulating the internal environment. Opening the lid allows for air exchange between the tank and the outside, replenishing oxygen and expelling gases like carbon dioxide produced during fermentation. When the internal temperature is too high, opening the lid helps dissipate heat, preventing the temperature from exceeding the optimal range for microbial activity. Conversely, closing the lid reduces moisture evaporation and heat loss when humidity or heat preservation is needed. Furthermore, an open lid facilitates the addition, turning, and removal of materials by operators, ensuring continuous operation of the composting fermentation tank.

[0004] Traditional cover-lifting devices typically use hydraulic cylinders, pneumatic cylinders, or electric actuators as drive components. Hydraulic cylinder drives have several drawbacks. For example, they require complex hydraulic systems, significantly increasing procurement and maintenance costs. Hydraulic oil leaks can also pollute the environment, and energy consumption is high. Pneumatic cylinder drives also have limitations. Due to their limited operating pressure, they often cannot provide sufficient power to lift larger and heavier covers, resulting in sluggish operation and low efficiency. Furthermore, pneumatic cylinders are highly dependent on the stability of the air supply; fluctuations in air pressure can affect the normal operation of the cover. While electric actuator drives are relatively simple in structure, they are prone to wear and jamming during long-term use, leading to reduced reliability and frequent maintenance that severely impacts production efficiency.

[0005] Chinese patent application number CN2024217586226 discloses an aerobic fermentation composting box with an aeration structure, including a fermentation box body. A flushing port is installed at the bottom of the fermentation box body, and an aeration jacket is provided at the bottom of the interior of the fermentation box body. An isolation chamber is provided on one side of the top of the interior of the fermentation box body. This aerobic fermentation composting box with an aeration structure incorporates rubber pads, shock-absorbing pads, and an aeration fan. The aeration fan is embedded inside the equipment. Air enters the interior of the aeration jacket through the aeration fan, and then enters the fermentation chamber inside the fermentation box body through the aeration holes at the bottom. This facilitates ventilation and aeration in the fermentation chamber. The evenly distributed aeration holes and the airflow buffer chamber formed by the jacket ensure a relatively uniform flow rate at each aeration hole, improving aeration efficiency and reducing aeration fan energy consumption. This solves the problems of ineffective suppression of odor emissions and low aeration efficiency.

[0006] However, in this patent, the fermentation tank lid is opened and controlled by an electric push rod. During long-term use, the push rod is prone to wear, jamming, and other malfunctions, resulting in reduced reliability and frequent maintenance work that seriously affects production efficiency. Utility Model Content

[0007] The main technical problem to be solved by this utility model is to provide a composting fermentation box lifting cover device with a simple overall structure, which can optimize the drive structure of the top cover during the use of the composting fermentation box, provide sufficient and stable torque, meet the lifting and lowering requirements of large-size and heavy top covers, and improve the use effect.

[0008] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0009] A lifting cover device for a composting fermentation box includes a box frame. A rotating shaft is rotatably connected to one side of the upper width direction of the box frame. One end of the rotating shaft is driven to the power output end of a reducer. The power input end of the reducer is driven to the power output end of a motor. A photoelectric sensor is installed at the power output shaft position on one side of the reducer. The reducer is also fixedly installed on the box frame. A top cover is fixedly connected to the outer surface of the rotating shaft.

[0010] The following are further optimizations of the above technical solution by this utility model:

[0011] Bearing brackets are fixedly installed on both sides of the upper end of the box frame in the length direction, and the bearing brackets are also located on one side of the upper end of the box frame in the width direction.

[0012] Further optimization: The two bearing brackets are arranged symmetrically, and the rotating shaft is rotatably connected to the two bearing brackets.

[0013] Further optimization: The bearing bracket includes a mounting plate fixedly installed on the upper cover, a bearing sleeve fixedly installed at the end of the mounting plate, a bearing fixedly installed inside the bearing sleeve, and the two ends of the rotating shaft fixedly installed in the middle hole of the bearing.

[0014] Further optimization: One end of the rotating shaft passes through the bearing and is fixedly connected to a coupling, and the other end of the coupling is fixedly connected to the power output shaft of the reducer.

[0015] Further optimization: A reducer mounting bracket is fixedly installed on the housing frame near the coupling, and the reducer is fixedly installed on the reducer mounting bracket.

[0016] Further optimization: A sensor bracket is fixedly installed at the upper end of the reducer.

[0017] Further optimization: The sensor bracket includes a flat plate fixedly installed on the upper end of the reducer, and a semi-circular plate is vertically arranged on one side of the flat plate, with the semi-circular plate extending towards the motor.

[0018] Further optimization: An arc-shaped groove is provided on the semi-circular plate near the power output shaft corresponding to the reducer and the rotating shaft, and the photoelectric sensor can be adjusted and installed in the arc-shaped groove.

[0019] Further optimization: A sensing plate is sleeved on the power output shaft of the reducer corresponding to the rotating shaft, and the sensing plate rotates with the rotating shaft.

[0020] This utility model adopts the above-mentioned technical solution, with ingenious conception and reasonable structure. It uses a "motor + reducer" drive combination, fundamentally avoiding several defects: It eliminates the need for a complex hydraulic system, completely eliminating the environmental pollution risk and high maintenance costs associated with hydraulic oil leakage; it eliminates the need for a stable air source, avoiding insufficient power and slow action caused by cylinder pressure fluctuations; it also overcomes the drawbacks of electric push rods being prone to wear and jamming after long-term use, significantly reducing equipment failure rate, minimizing maintenance downtime, ensuring the continuity of composting and fermentation operations, and indirectly improving production efficiency; the power transmission is stable and adaptable to large-size covers. The motor output power is reduced by the reducer and then precisely transmitted to the rotating shaft through a coupling, providing sufficient and stable torque to meet the smooth lifting and lowering requirements of large-size, heavy covers, while also controlling the rotation speed through the reducer to avoid impact damage caused by excessively rapid opening and closing of the cover, thus extending the overall service life of the device.

[0021] In this utility model, the core components such as the box frame, the top cover, and the bearing frame are all made of stainless steel, which has excellent corrosion resistance and rust resistance. It can withstand the moisture and corrosive gases generated during composting fermentation, and prevent the components from being damaged prematurely due to environmental erosion. The outer surface of the top cover is covered with a nano composting fermentation film, which can not only ensure the airtight environment required for fermentation, but also improve the anti-aging ability of the cover and extend the service life of the entire device.

[0022] In addition, the motor and photoelectric sensor in this device are electrically connected to the control system of the composting fermentation box. There is no need for manual adjustment of the opening of the top cover. The opening and closing action can be completed automatically according to the preset fermentation cycle parameters, reducing manual intervention and lowering the operation error rate. At the same time, it is easy to link with the temperature, humidity and other monitoring modules of the composting fermentation box to realize the automated closed-loop control of "environmental monitoring-opening adjustment", further optimizing the composting quality and efficiency.

[0023] The present invention will be further described below with reference to the accompanying drawings and embodiments. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure installation in an embodiment of this utility model;

[0025] Figure 2 This is a schematic diagram of the overall structure installation from another angle in an embodiment of this utility model;

[0026] Figure 3 This is a schematic diagram of the overall structure in an embodiment of the present utility model;

[0027] Figure 4 This is a structural schematic diagram of the overall structure from another angle in an embodiment of this utility model.

[0028] In the diagram: 1. Housing frame; 2. Bearing bracket; 21. Mounting plate; 22. Bearing sleeve; 3. Bearing; 4. Rotating shaft; 5. Top cover; 6. Coupling; 7. Reducer; 8. Motor; 9. Sensor bracket; 91. Photoelectric sensor; 92. Sensing element; 10. Reducer mounting bracket. Detailed Implementation

[0029] like Figure 1-4 As shown: A lifting cover device for a composting fermentation box includes a box frame 1. A rotating shaft 4 is rotatably connected to one side of the upper width direction of the box frame 1. One end of the rotating shaft 4 is driven to the power output end of a reducer 7. The power input end of the reducer 7 is driven to the power output end of a motor 8. A photoelectric sensor 91 is set at the position of the power output shaft on one side of the reducer 7. The reducer 7 is also fixedly installed on the box frame 1. A top cover 5 is fixedly connected to the outer surface of the rotating shaft 4.

[0030] In this embodiment, the box frame 1 is made of multiple stainless steel pipes welded together to support the entire composting fermentation box and enhance its overall strength.

[0031] The upper cover 5 consists of a cover body and a nano composting fermentation membrane. The cover body is made of multiple stainless steel pipes of different lengths and multiple arc-shaped stainless steel plates welded together. The nano composting fermentation membrane covers the outer surface of the cover body and can provide a sealed environment for composting fermentation in the composting fermentation box.

[0032] Bearing brackets 2 are fixedly installed on both sides of the upper end of the box frame 1 along the length direction.

[0033] The bearing bracket 2 is located on one side of the upper width direction of the housing frame 1.

[0034] The two bearing brackets 2 are arranged symmetrically, and the rotating shaft 4 is rotatably connected to the two bearing brackets 2.

[0035] The bearing bracket 2 includes a mounting plate 21 fixedly installed on the cover, and the mounting plate 21 is fixedly installed on the cover by bolts.

[0036] A bearing sleeve 22 is fixedly installed at the end of the mounting plate 21.

[0037] The bearing 3 is fixedly installed inside the bearing sleeve 22, and the two ends of the rotating shaft 4 are fixedly installed in the middle hole of the bearing 3.

[0038] With this design, the rotating shaft 4 rotates on the two bearing brackets 2 via the bearing 3.

[0039] The outer surface of the bearing sleeve 22 is also provided with a lubricating oil filling device to facilitate the maintenance of the bearing 3.

[0040] One end of the rotating shaft 4 passes through the bearing 3 and is fixedly connected to the coupling 6. The other end of the coupling 6 is fixedly connected to the power output shaft of the reducer 7.

[0041] The coupling 6 can connect the rotating shaft 4 and the power output shaft of the reducer 7. The common connection methods are well known in the prior art and will not be described in detail here.

[0042] With this design, the reducer 7 drives the rotating shaft 4 to rotate through the coupling 6, which can ensure that the power output shaft of the reducer 7 and the rotating shaft 4 remain coaxial during rotation, thus reducing errors.

[0043] A reducer mounting bracket 10 is fixedly installed on the housing frame 1 near the coupling 6.

[0044] The reducer 7 is fixedly installed on the reducer mounting bracket 10.

[0045] The rotating shaft 4 is fixedly connected to the upper cover 5 by welding.

[0046] A sensor bracket 9 is fixedly installed at the upper end of the reducer 7.

[0047] The sensor bracket 9 includes a flat plate fixedly installed on the upper end of the reducer 7. A semi-circular plate is vertically arranged on one side of the flat plate, and the semi-circular plate extends towards the motor 8.

[0048] An arc-shaped groove is provided on the semi-circular plate near the power output shaft position corresponding to the reducer 7 and the rotating shaft 4, and the photoelectric sensor 91 can be adjusted and installed in the arc-shaped groove.

[0049] The reducer 7 is fitted with a sensing plate 92 on the power output shaft corresponding to the rotating shaft 4, and the sensing plate 92 rotates with the rotating shaft 4.

[0050] The mounting position of the sensor 92 on the power output shaft is set according to requirements.

[0051] In this embodiment, the photoelectric sensor 91 is an M12 diffuse reflection photoelectric switch, which can sense the position of the sensing piece 92 and feed back the signal to realize the setting of the opening angle of the upper cover 5.

[0052] The outer surface of the composting fermentation box is also equipped with a control system for controlling the operation of the composting fermentation box. The control terminal of the motor 8 is electrically connected to the control system, and the signal output terminal of the photoelectric sensor 91 is electrically connected to the control system.

[0053] The composting fermentation chamber operates in several stages during composting: In the initial fermentation stage, microorganisms are just beginning to multiply, the oxygen demand is relatively low, and the moisture and heat in the material are not easily lost excessively. Therefore, the opening degree of the top cover is usually small, generally controlled at around 10%-20%.

[0054] During the middle stage of fermentation, microbial activity increases and the metabolic rate accelerates, consuming a large amount of oxygen and releasing a significant amount of heat. At this stage, a larger opening and closing degree is required, typically 40%-60%.

[0055] In the later stages of fermentation, microbial activity gradually weakens, the demand for oxygen decreases, and the material tends to mature, requiring a relatively stable environment to complete the final maturation process. The opening degree should be reduced again, generally maintained at 20%-30%.

[0056] In addition, under special circumstances, such as when rapid cooling or removal of a large amount of exhaust gas is required, the lid may be fully opened; and when feeding or removing materials, the lid must also be opened to its maximum extent to facilitate the smooth operation.

[0057] Therefore, according to the different stages of composting fermentation, the position of the photoelectric sensor 91 is first adjusted. For example, in the early stage of fermentation, when the top cover 5 needs to be opened or closed by 10%-20%, the photoelectric sensor 91 is adjusted to the right side of the arc groove, close to the sensing plate 92, so that the plane position angle between the photoelectric sensor 91 and the sensing plate 92 is within the range of 10%-20%. Then, the motor 8 is started, and the power output end of the motor 8 transmits power to the reducer 7. The power output shaft of the reducer 7 simultaneously drives the rotating shaft 4 and the sensing plate 92 to rotate. When the rotating shaft 4 rotates, it drives the top cover 5 to rotate and open. When the photoelectric sensor 91 detects the sensing plate 92, it feeds the signal back to the control system, controlling the motor 8 to stop and lock, so that the top cover 5 is fixed after it is opened to the correct position. The control principle is the same for other stages.

[0058] In this embodiment, the connection method between the motor 8 and the reducer 7 is known in the prior art, and the motor 8 with the function of locking upon stopping is selected. The specific principle is known and will not be described in detail here.

[0059] For those skilled in the art, any changes, modifications, substitutions, and variations made to the embodiments based on the teachings of this utility model, without departing from the principles and spirit of this utility model, still fall within the protection scope of this utility model.

Claims

1. A lifting cover device for a composting fermentation box, comprising a box frame (1), characterized in that: A rotating shaft (4) is rotatably connected to one side of the upper width direction of the box frame (1). One end of the rotating shaft (4) is connected to the power output end of the reducer (7). The power input end of the reducer (7) is connected to the power output end of the motor (8). A photoelectric sensor (91) is set at the power output shaft position on one side of the reducer (7). The reducer (7) is also fixedly installed on the box frame (1). A top cover (5) is fixedly connected to the outer surface of the rotating shaft (4).

2. The lifting cover device for a composting fermentation tank according to claim 1, characterized in that: The upper end of the box frame (1) is fixedly installed with bearing brackets (2) on both sides of the length direction, and the bearing brackets (2) are also located on one side of the upper end of the box frame (1) in the width direction.

3. The lifting cover device for a composting fermentation tank according to claim 2, characterized in that: The two bearing frames (2) are arranged symmetrically, and the rotating shaft (4) is rotatably connected to the two bearing frames (2).

4. The lifting cover device for a composting fermentation tank according to claim 3, characterized in that: The bearing bracket (2) includes a mounting plate (21) fixedly mounted on the upper cover (5), a bearing sleeve (22) fixedly mounted at the end of the mounting plate (21), a bearing (3) fixedly mounted inside the bearing sleeve (22), and the two ends of the rotating shaft (4) fixedly mounted in the middle hole of the bearing (3).

5. The lifting cover device for a composting fermentation tank according to claim 4, characterized in that: One end of the rotating shaft (4) passes through the bearing (3) and is fixedly connected to the coupling (6). The other end of the coupling (6) is fixedly connected to the power output shaft of the reducer (7).

6. The lifting cover device for a composting fermentation tank according to claim 5, characterized in that: A reducer mounting bracket (10) is fixedly installed on the housing frame (1) near the coupling (6), and the reducer (7) is fixedly installed on the reducer mounting bracket (10).

7. The lifting cover device for a composting fermentation tank according to claim 6, characterized in that: A sensor bracket (9) is fixedly installed at the upper end of the reducer (7).

8. The lifting cover device for a composting fermentation tank according to claim 7, characterized in that: The sensor bracket (9) includes a flat plate fixedly installed on the upper end of the reducer (7), and a semi-circular plate is vertically arranged on one side of the flat plate, with the semi-circular plate extending towards the motor (8).

9. The lifting cover device for a composting fermentation tank according to claim 8, characterized in that: An arc-shaped groove is provided on the semi-circular plate near the power output shaft position corresponding to the reducer (7) and the rotating shaft (4), and the photoelectric sensor (91) can be adjusted and installed in the arc-shaped groove.

10. The lifting cover device for a composting fermentation tank according to claim 9, characterized in that: The reducer (7) is fitted with a sensor (92) on the power output shaft corresponding to the rotating shaft (4), and the sensor (92) rotates with the rotating shaft (4).

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