Negative pressure conveyor

Abstract

The utility model is suitable for product conveying technical field provides a kind of negative pressure conveyor, including main body rack, two side plates are fixed on main body rack, obliquely set with chain plate between two side plates, the both ends of chain plate are correspondingly provided with driven shaft one and driven shaft two, and the both ends of driven shaft one, driven shaft two are rotatably connected with two side plates respectively;Motor is fixedly installed on side plate, and the output end of motor is drivingly connected with driving shaft, and driving shaft is drivingly connected with driven shaft two by direction-changing shaft, and direction-changing shaft is used to change the running direction of chain plate;Exhaust fan is installed on the side plate below chain plate, a plurality of exhaust ports are equipped on two side plates, and exhaust port is used to exhaust air when exhaust fan works, so that air pressure difference is formed between exhaust fan and chain plate to adsorb product.The utility model realizes large-inclination stable conveying by chain plate and direction-changing shaft structure, reduces energy consumption and space requirement by using short-distance negative pressure adsorption, and has the advantages of compact structure, energy saving and high efficiency, low cost.

Description

Technical Field

[0001] This utility model belongs to the field of product conveying technology, and in particular relates to a negative pressure conveyor. Background Technology

[0002] In material conveying, especially when products need to be lifted from a low to a high position, traditional belt or chain conveyors typically require a relatively gentle conveying angle to prevent material slippage. This significantly increases the conveyor length, occupying a large amount of installation space. This not only limits their application in site-constrained environments but also increases civil engineering and equipment costs. To achieve large-angle conveying, some equipment uses a reduced angle combined with multi-stage transfer, but this further increases system complexity and maintenance costs, making it difficult to meet the modern industrial demand for efficient and compact conveying equipment.

[0003] Furthermore, existing conveyors with negative pressure adsorption functions mostly rely on high-power centrifugal high-pressure fans to create negative pressure within a completely sealed conveying chamber to adsorb materials. While this can achieve steep slope conveying to a certain extent, it places extremely high demands on the sealing performance of the conveying structure, resulting in high manufacturing and maintenance costs. Simultaneously, due to the need to overcome significant air resistance, fan energy consumption increases significantly, leading to high overall power consumption and poor economic efficiency. When using ordinary belts as the conveying surface, the belts are prone to deformation or deviation under negative pressure due to uneven stress, affecting operational stability and service life. Therefore, there is an urgent need for a compact, low-energy-consumption negative pressure conveying device that can operate stably at large inclination angles to overcome the shortcomings of traditional technologies in terms of space occupation, energy consumption, and reliability. Utility Model Content

[0004] The purpose of this invention is to provide a negative pressure conveyor, which aims to solve the problems mentioned in the background art.

[0005] This utility model is implemented as follows: a negative pressure conveyor includes a main frame, on which two oppositely arranged side plates are fixed, and a chain plate is inclinedly arranged between the two side plates. The two ends of the chain plate are respectively provided with a driven shaft one and a driven shaft two, and the two ends of the driven shaft one and the driven shaft two are rotatably connected to the two side plates respectively.

[0006] A motor is fixedly installed on the side plate. The output end of the motor is connected to a drive shaft. The drive shaft is connected to the driven shaft via a reversing shaft. The reversing shaft is used to change the running direction of the chain plate.

[0007] An exhaust fan is installed below the chain plate on the side plate. Multiple exhaust ports are provided on both side plates. The exhaust ports are used to discharge air when the exhaust fan is working, so as to create an air pressure difference between the exhaust fan and the chain plate to adsorb the product.

[0008] In a further technical solution, the reversing shaft is also used to increase the wrapping angle between the chain plate and the drive shaft.

[0009] In a further technical solution, the distance between the exhaust fan and the chain plate is 1-5cm.

[0010] In a further technical solution, the plurality of exhaust ports on the side plate are evenly distributed along the length direction of the chain plate.

[0011] A further technical solution is provided where elongated holes are provided on both side plates, and pressure plates are movably and adjustablely installed in both elongated holes. The pressure plates are in contact with the surface of the chain plate, and the pressure plates are used to change the tightness with the chain plate by adjusting their position.

[0012] In a further technical solution, both ends of the pressure plate are provided with locking bolts, which are used to fix the pressure plate in the elongated hole after the position of the pressure plate is adjusted.

[0013] A further technical solution is that the chain plate is machined with multiple small holes, which are used to allow air to circulate in order to cooperate with the exhaust fan to form an air pressure difference.

[0014] In a further technical solution, the chain plate is replaced with a perforated belt.

[0015] The negative pressure conveyor provided by this utility model has the following beneficial effects:

[0016] This invention achieves stable product conveying under large inclination angles through a chain plate structure and a reversing shaft design, which greatly improves material handling efficiency and broadens the application range of the equipment.

[0017] The distance design between the exhaust fan and the chain plate allows a small-power exhaust fan to generate sufficient air pressure difference to adsorb and transport products, thereby reducing the size of the equipment and lowering the requirements for system sealing.

[0018] The use of low-power exhaust fans effectively reduces energy consumption, while the application of general-purpose electronic components further reduces manufacturing costs.

[0019] In addition, the elongated holes on the side plates allow for adjustment of the pressure plate position, ensuring smooth chain operation and adapting to the conveying needs of different products.

[0020] In summary, this utility model not only achieves efficient product transportation but also excels in saving space, reducing energy consumption and costs, making it suitable for various industrial application scenarios. Attached Figure Description

[0021] Figure 1 This is a front view structural diagram of the negative pressure conveyor provided in an embodiment of the present utility model;

[0022] Figure 2 A left-side structural schematic diagram of the negative pressure conveyor provided in this embodiment of the utility model;

[0023] Figure 3 A top view of the negative pressure conveyor provided in an embodiment of this utility model;

[0024] Figure 4 A three-dimensional structural diagram of the negative pressure conveyor provided in an embodiment of this utility model.

[0025] In the diagram: 1-Driven shaft one, 2-Pressure plate, 3-Side plate, 4-Exhaust port, 5-Drive shaft, 6-Driven shaft two, 7-Chain plate, 8-Motor, 9-Reversing shaft, 10-Main frame. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] The specific implementation of this utility model will be described in detail below with reference to specific embodiments.

[0028] like Figure 1-4 As shown, a negative pressure conveyor according to an embodiment of this utility model includes a main frame 10. Two side plates 3 are fixed on the main frame 10. A chain plate 7 is inclinedly arranged between the two side plates 3. The two ends of the chain plate 7 are respectively provided with a driven shaft 1 and a driven shaft 6, and the two ends of the driven shaft 1 and the driven shaft 6 are rotatably connected to the side plates 3. A motor 8 is fixed on the side plate 3. The output end of the motor 8 is connected to the drive shaft 5. The drive shaft 5 is connected to the driven shaft 6 through a reversing shaft 9. The reversing shaft 9 changes the running direction of the chain plate 7 and increases the wrapping angle between the chain plate 7 and the drive shaft 5. The chain plate 7 is installed around the driven shaft 1 and the driven shaft 6 according to the design direction. In addition, the drive shaft 5 and the reversing shaft 9, and the reversing shaft 9 and the driven shaft 6 are all connected by chain drive. The motor 8 is detachably fixed to the outer wall of the side plate 3 by bolts, and the output end of the motor 8 passes through the side plate 3 and is connected to the drive shaft 5.

[0029] An exhaust fan is installed below the chain plate 7 on the side plate 3, with a 1-5cm space reserved between the exhaust fan and the chain plate 7. Multiple exhaust ports 4 are evenly distributed on the side plate 3. When the exhaust fan operates, a pressure difference is created between the reserved space and the surface of the chain plate 7, allowing air to escape through the exhaust ports 4. Because the exhaust fan is very close to the chain plate 7, only a low-power exhaust fan is needed to create a certain pressure difference, thus adsorbing the product onto the chain plate 7 and achieving the purpose of product transport. It should be noted that the chain plate 7 is a breathable chain plate or a porous structure, allowing air to pass through to ensure effective negative pressure adsorption. Sealing strips are provided at the edges of the chain plate 7, or the side plate 3 and the chain plate 7 are designed as a mating structure to ensure sealing.

[0030] In a preferred embodiment of this utility model, the side plate 3 has elongated holes, and pressure plates 2 are movably installed in the two elongated holes of the side plates 3. The pressure plates 2 are in contact with the chain plate 7. By adjusting the position of the pressure plates 2, the tension between the pressure plates 2 and the chain plate 7 can be adjusted. Each end of the pressure plate 2 is provided with a locking bolt, which is used to fix the pressure plate 2 in the elongated hole after the position is adjusted.

[0031] The chain plate 7 has multiple small holes processed on it, which are used to allow air to circulate in order to form an air pressure difference with the exhaust fan; the chain plate 7 can be replaced by a perforated belt, and the air permeability of the perforated belt does not affect the negative pressure adsorption effect.

[0032] Preferably, the bottom of the main frame 10 is provided with leveling feet, which are evenly distributed around the circumference of the main frame 10, and are used to adjust the levelness of the main frame 10.

[0033] Furthermore, the control of each component can be achieved using a PLC controller disclosed in the existing technology. There are no specific limitations on the model and circuit connection of each component, and they can be flexibly configured in practical applications.

[0034] The circuits, electronic components, and modules involved are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0035] The present invention provides a negative pressure conveyor in the above embodiments. Through the designed chain plate 7 structure and the application of the reversing shaft 9, stable conveying of products can be achieved even under large inclination angles. This not only expands the application scenarios of the equipment but also improves material handling efficiency.

[0036] Since the distance between the exhaust fan and the chain plate 7 is controlled between 1-5cm, only a small-power exhaust fan is needed to create sufficient air pressure difference to adsorb and transport the product. This design significantly reduces the overall size of the equipment, and because the required air pressure is lower, it also reduces the stringent requirements for system sealing.

[0037] The use of low-power exhaust fans is sufficient to meet operational requirements, effectively reducing energy consumption. Furthermore, the common electronic components and modules used in this device are all existing technologies, eliminating the need for customized, expensive components and further reducing manufacturing costs.

[0038] The side plate 3 has elongated holes, allowing the pressure plate 2 to be adjusted in position as needed, thereby adjusting the tension between it and the chain plate 7. This adjustability ensures the smooth and reliable operation of the chain plate 7, adapting to the conveying needs of products of different specifications.

[0039] In summary, this utility model not only achieves efficient product transportation, but also demonstrates significant advantages in saving space, reducing energy consumption and costs, and is suitable for various industrial application scenarios.

[0040] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0041] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A negative pressure conveyor, comprising a main frame (10), characterized in that, Two opposing side plates (3) are fixed on the main frame (10). A chain plate (7) is inclined between the two side plates (3). The two ends of the chain plate (7) are respectively provided with driven shaft one (1) and driven shaft two (6), and the two ends of driven shaft one (1) and driven shaft two (6) are rotatably connected to the two side plates (3). A motor (8) is fixedly installed on the side plate (3). The output end of the motor (8) is connected to the drive shaft (5). The drive shaft (5) is connected to the driven shaft (6) through the reversing shaft (9). The reversing shaft (9) is used to change the running direction of the chain plate (7). An exhaust fan is installed on the side plate (3) below the chain plate (7). Multiple exhaust ports (4) are provided on both side plates (3). The exhaust ports (4) are used to discharge air when the exhaust fan is working, so that an air pressure difference is formed between the exhaust fan and the chain plate (7) to adsorb the product.

2. The negative pressure conveyor according to claim 1, characterized in that, The reversing shaft (9) is also used to increase the wrapping angle between the chain plate (7) and the drive shaft (5).

3. The negative pressure conveyor according to claim 1, characterized in that, The distance between the exhaust fan and the chain plate (7) is 1-5cm.

4. The negative pressure conveyor according to claim 3, characterized in that, The multiple exhaust ports (4) on the side plate (3) are evenly distributed along the length of the chain plate (7).

5. The negative pressure conveyor according to any one of claims 1-4, characterized in that, Both side plates (3) have elongated holes, and a pressure plate (2) is movably installed in both elongated holes. The pressure plate (2) is in contact with the surface of the chain plate (7), and the pressure plate (2) is used to change the tightness with the chain plate (7) by adjusting its position.

6. The negative pressure conveyor according to claim 5, characterized in that, Both ends of the pressure plate (2) are provided with locking bolts, which are used to fix the pressure plate (2) in the elongated hole after the position is adjusted.

7. The negative pressure conveyor according to claim 4, characterized in that, The chain plate (7) has multiple small holes, which are used to allow air to circulate in order to cooperate with the exhaust fan to form an air pressure difference.

8. The negative pressure conveyor according to claim 7, characterized in that, The chain plate (7) is replaced with a perforated belt.

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