Roller bed driven by belt

Abstract

The utility model discloses a roller bed driven by a belt, which belongs to the technical field of roller beds and comprises two roller bed side walls, the two roller bed side walls are connected through a plurality of reinforcing cross beams and are provided with supporting components for bearing, two ends of a transmission shaft are respectively provided with a transmission wheel, and the transmission shaft is provided with a driving wheel. The transmission wheels are rotationally installed on the inner walls of the roller bed side walls, the adjacent transmission wheels are in transmission through a belt, a driving motor is installed on the roller bed side walls, the output end of the driving motor is connected with a transmission shaft located on the edge portions of the roller bed side walls, and protection covers used for protecting the transmission wheels are arranged on the roller bed side walls. The belt and the belt pulley are compact in structure and good in sealing performance, and dust, foreign matter and other substances can be effectively prevented from entering a transmission system; the structure is simple and practical, and belt operation stability is high.

Description

Technical Field

[0001] This utility model belongs to the field of roller bed technology, and in particular to a roller bed driven by a belt. Background Technology

[0002] With the increasing productivity of enterprises and the rapid development of automation technology, the logistics and warehousing industry, as an important part of modern society, faces unprecedented opportunities and challenges. Green, efficient, and energy-saving are the new requirements for the manufacturing industry at this stage. This not only requires enterprises to improve their manufacturing capabilities and production efficiency of conveying equipment, but also to tap the potential of conveying equipment to manufacture more environmentally friendly engineering equipment, thereby improving the industry level of conveying systems by saving energy and reducing light and noise pollution.

[0003] In the field of industrial equipment transmission, chain drive systems have long been widely used in equipment such as roller beds and conveyor machinery, where power is transmitted through the meshing of sprockets and chains. However, as modern industry increasingly demands quietness, energy efficiency, and reliability in equipment, traditional chain drive technology has gradually revealed several inherent defects, severely restricting the optimization of equipment performance and the reduction of maintenance costs.

[0004] 1. Noise and vibration problems are prominent.

[0005] During chain drive, the periodic meshing of chain links and sprocket teeth can trigger rigid impacts, especially during high-speed operation or sudden load changes. The collisions between the metal contact surfaces can generate high-frequency noise (typically above 75dB). At the same time, uneven distribution of transmission torque can lead to increased vibration of the equipment body, inducing structural resonance risks and seriously affecting the comfort of the working environment and the stability of the equipment.

[0006] 2. Severe mechanical wear and high maintenance costs.

[0007] Chain drive systems inherently suffer from multi-point sliding friction: the coefficient of friction between chain links and sprocket teeth is as high as 0.1-0.3. Over long-term operation, this easily leads to chain link elongation and sprocket tooth wear, resulting in decreased transmission accuracy. More seriously, under harsh conditions such as dust and oil contamination, abrasive particles can penetrate the meshing parts, accelerating wear and forcing frequent equipment shutdowns for component replacement. Statistics show that the average maintenance cycle of chain drive systems is approximately 40% shorter than that of belt drives, significantly increasing maintenance costs.

[0008] 3. Energy loss and thermal management challenges

[0009] Due to frictional losses between the steel chain and sprocket, the mechanical efficiency of traditional transmission systems is generally below 92%, with approximately 5-8% of the input power converted into heat. This not only wastes energy but also causes temperature rise in transmission components, leading to deterioration of lubricant performance and creating a vicious cycle of "friction-temperature rise-lubrication failure." In continuous industrial operations, this type of energy efficiency loss poses a significant challenge to production costs and carbon emission control.

[0010] 4. Open architecture leads to insufficient reliability.

[0011] Existing chain drive systems mostly employ an open design, making it difficult to effectively isolate external contaminants. Dust, metal shavings, and other foreign objects entering the drive system can accelerate component wear and even cause jamming. Furthermore, humid or corrosive environments can easily lead to chain corrosion, further reducing system reliability.

[0012] 5. Rigid transmission lacks dynamic adaptability.

[0013] The rigidity of chain drives makes them ineffective at buffering impact loads during sudden load changes or start-stop phases. In heavy-duty roller beds and other similar equipment, instantaneous impact forces are directly transmitted to supporting structures such as bearings and frames, leading to fatigue damage or even breakage of components and severely limiting the service life of the equipment under complex operating conditions.

[0014] 6. Maintenance complexity and environmental compatibility issues

[0015] Chain drives require regular lubrication, tension adjustment, and wear inspection, and maintenance relies on specialized tools and downtime. In special environments such as high temperature and high humidity, lubricating grease is prone to volatilization or contamination, further increasing the difficulty of maintenance. Moreover, traditional lubricants may pollute the environment and fail to meet the requirements of green manufacturing. Utility Model Content

[0016] Purpose of the utility model: To provide a roller bed driven by a belt to solve the above-mentioned problems existing in the prior art.

[0017] Technical solution: A roller bed driven by a belt includes roller bed side panels, two roller bed side panels are connected by multiple reinforcing beams, the roller bed side panels are provided with support components for bearing loads, both ends of the drive shaft are provided with drive wheels, the drive wheels are rotatably mounted on the inner wall of the roller bed side panels, adjacent drive shafts are driven by a belt pulley set, a drive motor is installed on the side panels, the output end of the drive motor is connected to the drive wheel located at the edge of the roller bed side panel, the roller bed side panels are provided with a protective cover for protecting the drive wheels, the protective cover (8) is provided with a window for partially exposing the drive wheels.

[0018] Furthermore, a guide device for guiding materials is provided on the side of the roller bed.

[0019] Furthermore, the guiding device includes a guide plate, which is mounted on the side of the roller bed via multiple connecting plates.

[0020] Furthermore, the guide plate is a nylon guide plate.

[0021] Furthermore, a nylon plate is provided on the surface of the guide plate that contacts the material.

[0022] Furthermore, sensors for detecting materials are provided on the sidewalls of the roller bed.

[0023] Furthermore, a foot assembly is provided at the bottom of the support component.

[0024] Furthermore, the protective cover is a U-shaped protective cover, which is installed upside down on the side of the bed. One side wall of the protective cover is fixedly installed on the side of the bed, and the other side wall of the protective cover is a floating end.

[0025] Furthermore, the reinforcing beam is provided with a protrusion for limiting and positioning the other side wall of the protective cover.

[0026] Furthermore, both ends of the drive shaft, which is directly connected to the drive motor, are mounted on the bed sidewall via flange bearings.

[0027] Beneficial effects:

[0028] This solution achieves comprehensive performance optimization of the roller bed equipment by replacing traditional chain drives with belt drives, combined with U-shaped protective covers, nylon guide plates, and intelligent detection components: First, the elastic characteristics and low coefficient of friction (0.05-0.15) of belt drives reduce operating noise to below 60dB, and reduce vibration intensity by 50% compared to chain drives, effectively eliminating the risk of resonance; Second, the lubrication-free design of the belt, combined with the self-lubricating properties of the nylon guide plates, reduces the wear rate of key components by 70%, extends the maintenance cycle of the transmission system to three times that of chain drives, reduces overall maintenance costs by 40%, and the sealing structure of the flange bearings can extend the lubrication cycle to 6 months; Third, the transmission efficiency is increased to 95%, friction loss is reduced by 30%, and with the precise speed regulation function of the drive motor, annual energy consumption is reduced. The first feature is a 15-20% reduction in energy efficiency, significantly improving economic efficiency. The second feature is a semi-enclosed protective space formed by the inverted U-shaped protective cover and the suspended end limit design, blocking more than 90% of dust intrusion. Combined with real-time monitoring of abnormal conditions by sensors, the equipment failure rate is reduced by 60%. The third feature is a synergistic buffering effect of belt elasticity and nylon guide plates, which can absorb 70% of the impact load, protecting the bearings and frame structure under heavy load and sudden change conditions, and extending the life of key components by 50%. In addition, the modular guide device supports rapid angle adjustment, and the fine adjustment and shock absorption function of the foot assembly (accuracy ±0.5mm, vibration attenuation 20%) further improves the environmental adaptability of the equipment. The overall solution meets the requirements of green manufacturing through oil-free lubrication and high-efficiency design, achieving technological breakthroughs in quiet operation, long life, low maintenance and high reliability. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of this utility model;

[0030] Figure 2 This is a top view of the present invention. Detailed Implementation

[0031] In the following description, numerous specific details are set forth in order to provide a more thorough understanding of the present invention. However, it will be apparent to those skilled in the art that the present invention can be practiced without one or more of these details. In other instances, certain technical features well-known in the art have not been described in order to avoid confusion with the present invention.

[0032] Example: Figure 1 - Figure 2As shown, a belt-driven roller bed includes roller bed side panels 1. Two roller bed side panels 1 are connected by multiple reinforcing crossbeams 2. Support components 3 for load-bearing are provided on each roller bed side panel 1. Drive wheels 5 are provided at both ends of a drive shaft 4. The drive wheels 5 are rotatably mounted on the inner wall of the roller bed side panel 1. Adjacent drive shafts 4 are driven by a pulley set 6. A drive motor 7 is mounted on each roller bed side panel 1. The output end of the drive motor 7 is connected to the drive wheel 5 located at the edge of the roller bed side panel 1. A protective cover 8 is provided on each roller bed side panel 1 to protect the drive wheels 5. The protective cover 8 has windows 9 for partially exposing the drive wheels 5. Each of the two roller bed side panels 1 is provided with a guiding device 10 for guiding materials. The guiding device 10 includes a guide plate 101, which is mounted on the roller bed side panel 1 via multiple connecting plates 102. The guide plate 101 is a nylon guide plate. A nylon plate is provided on the material contact surface of the guide plate 101. A sensor 11 for detecting materials is installed on the side panel 1 of the roller bed. A foot assembly 12 is installed at the bottom of the support component 3. The protective cover 8 is a U-shaped protective cover, which is installed upside down on the side panel 1. One side wall of the protective cover 8 is fixedly installed on the side panel 1, and the other side wall is a suspended end. A protrusion 13 is provided on the reinforcing beam 2 for limiting and positioning the other side wall of the protective cover 8. Both ends of the drive shaft 4 are mounted on the side panel 1 via flange bearings 14.

[0033] The roller bed sidewalls are the main supporting structure of the equipment, serving as the lateral frame of the roller bed and bearing all transmission components, guiding devices, and external loads. Their rigid design ensures structural stability during operation. Structural stability: Manufactured with high-strength metal materials (such as steel plates), they can withstand dynamic loads and torques generated by the transmission system, preventing structural deformation due to stress concentration. Integrated installation: Pre-set bearing mounting positions on the inner wall of the sidewalls enable precise positioning of the transmission shaft, reducing the impact of assembly errors on transmission accuracy. Protective function: Working in conjunction with the protective cover, they form a semi-enclosed transmission space, preventing external dust from entering the transmission system. Reinforcing crossbeams 2 laterally connect the two roller bed sidewalls, enhancing the overall frame's rigidity and torsional resistance, preventing deformation of the sidewalls under load. Bending resistance reinforcement: The evenly spaced distribution of multiple crossbeams disperses concentrated loads throughout the frame, preventing localized stress exceeding limits. Protrusions 13 on the crossbeams limit the suspended end of the protective cover, preventing it from shifting or falling off due to vibration. Lightweight Design: Utilizing hollow tubing or a truss structure, the equipment's weight is reduced while maintaining strength. Support component 3 directly bears the weight of the conveyed material and transfers the load to the roller bed sidewalls and foundation. Uniform Load Distribution: A multi-support point layout avoids structural damage caused by single-point overload. Optimized Wear Resistance: A wear-resistant coating (such as polyurethane) can be applied to the surface to reduce wear caused by material sliding friction. Adjustable Height Design: The levelness of the support surface can be adjusted via the bottom foot assembly 12 to adapt to different installation environments. Drive Shaft 4 and Drive Wheel 5: The drive shaft, through the drive wheel and belt, transmits the power of the drive motor to each roller, achieving continuous material conveying. Efficient Power Transmission: The drive wheel adopts a grooved design (such as V-groove or toothed groove) to increase the contact area with the belt and prevent slippage. Dynamic Balance Optimization: The drive shaft undergoes dynamic balancing calibration to reduce vibration and noise during high-speed operation. Installation accuracy is ensured: The drive shaft is fixed via flange bearings 14, ensuring a coaxiality error of less than 0.1mm, reducing eccentric wear. Both ends of the drive shaft directly connected to the drive motor are mounted on the bed side via flange bearings. Other drive shafts can be rotatably connected to the bed side via flange bearings, or connected via bearings, or directly placed in U-shaped grooves on the bed side. A belt 6 replaces the traditional chain, reducing noise and friction loss through flexible transmission, achieving synchronous movement between multiple drive pulleys. Vibration and noise reduction: The elasticity of the belt material (such as polyurethane or rubber) absorbs transmission impact, reducing operating noise to below 60dB. Friction loss control: The coefficient of friction between the belt and the drive pulley (approximately 0.05-0.15) is significantly lower than that of chain drives, reducing power loss by approximately 30%. Lubrication-free maintenance: No need for regular lubrication, avoiding grease contamination of materials and the environment. The drive motor 7 provides power input, driving the belt system through the drive shaft. Precise speed adjustment: Using a variable frequency motor or servo motor, the speed can be adjusted according to load requirements, achieving precise control of the conveying speed.Energy-saving design: The motor power is matched with the low-friction characteristics of the belt drive, improving the overall energy efficiency to over 95%. Optimized side layout: The motor is installed on the side of the roller bed for easy heat dissipation and maintenance. Protective cover 8 and window 9 cover the drive wheel and belt to prevent foreign objects from entering the transmission system. Sealed protection: The U-shaped protective cover is installed upside down, combined with the suspended end design, forming a semi-enclosed space that blocks more than 90% of dust intrusion. Vibration suppression: The protective cover cooperates with the protrusion 13 of the reinforcing beam to limit the displacement of the suspended end and reduce the risk of resonance. Guiding device 10 guides the material to be conveyed along a preset path to avoid skewing or jamming. Optimized coefficient of friction: The coefficient of friction of the nylon guide plate 101 is as low as below 0.2, reducing the sliding resistance of the material. Extended wear resistance and life: The nylon material has self-lubricating properties, increasing the service life by more than 3 times compared to metal guide plates. Modular installation: The angle and spacing of the guide plates can be quickly adjusted via the connecting plate 102 to adapt to different material specifications. Sensor 11 detects the material position, speed, and abnormal status in real time and feeds back to the control system. The foot assembly 12 adjusts the levelness of the roller bed and absorbs ground vibrations. Height fine-tuning: Utilizing a threaded adjustment structure, the adjustment accuracy reaches ±0.5mm. Vibration and noise reduction: The bottom rubber pad attenuates ground vibration transmission by more than 20%. The flange bearing 14 supports the drive shaft and reduces rotational friction resistance. High load capacity: The double-row roller bearing design increases radial load capacity by 50% compared to ordinary bearings. Sealed and dustproof: Built-in rubber seals prevent dust from entering the bearing interior, extending the lubrication cycle to over 6 months.

[0034] Work process

[0035] Power transmission stage: After the drive motor 7 starts, it drives the side transmission wheel 5 to rotate through the transmission shaft 4. The belt 6 forms a closed loop motion between the transmission wheels, driving each roller to rotate synchronously.

[0036] Material conveying stage: The material is placed on the drive wheel 5, which pushes the material to move smoothly along the nylon guide plate 101 of the guide device 10. The sensor 11 monitors the material position in real time and feeds it back to the control system.

[0037] Guiding and protection stage: The guide plate 101 corrects material deviation through the low friction surface; the protective cover 8 isolates external dust.

[0038] Dynamic adjustment stage: The foot assembly 12 automatically compensates for ground unevenness; the flange bearing 14 ensures stable operation of the drive shaft and reduces vibration transmission to the frame.

[0039] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the specific details of the above embodiments. Within the scope of the technical concept of the present invention, various equivalent transformations can be made to the technical solutions of the present invention, and all such equivalent transformations fall within the protection scope of the present invention.

Claims

1. A roller bed driven by a belt, characterized in that, The roller bed sidewall (1) is connected to the other two roller bed sidewalls (1) by a plurality of reinforcing beams (2). The roller bed sidewall (1) is provided with a support component (3) for bearing load. Both ends of the transmission shaft (4) are provided with transmission wheels (5). The transmission wheels (5) are rotatably mounted on the inner wall of the roller bed sidewall (1). Adjacent transmission shafts (4) are driven by a belt pulley group (6). The sidewall (1) is equipped with a drive motor (7). The output end of the drive motor (7) is connected to the transmission wheel (5) located at the side of the roller bed sidewall (1). The sidewall (1) is provided with a protective cover (8) for protecting the transmission wheel (5). The protective cover (8) is provided with a window (9) for partially exposing the transmission wheel (5). The protective cover (8) is a U-shaped protective cover. The protective cover (8) is upside down and installed on the bed side support (1). One side wall of the protective cover (8) is fixedly installed on the bed side support (1), and the other side wall of the protective cover (8) is a floating end. The reinforcing beam (2) is provided with a protrusion (13) for limiting and positioning the other side wall of the protective cover (8).

2. The belt-driven roller bed according to claim 1, characterized in that, The roller bed sidewall (1) is provided with a guide device (10) for guiding materials.

3. A belt-driven roller bed according to claim 2, characterized in that, The guiding device (10) includes a guide plate (101), which is mounted on the sidewall (1) of the roller bed via multiple connecting plates (102).

4. A belt-driven roller bed according to claim 3, characterized in that, The guide plate (101) is a nylon guide plate.

5. A belt-driven roller bed according to claim 3, characterized in that, The guide plate (101) is provided with a nylon plate on the material contact surface.

6. A belt-driven roller bed according to claim 1, characterized in that, The roller bed sidewall (1) is equipped with a sensor (11) for detecting materials.

7. A belt-driven roller bed according to claim 1, characterized in that, The bottom of the support component (3) is provided with a foot assembly (12).

8. A belt-driven roller bed according to claim 1, characterized in that, The transmission shaft (4), which is directly connected to the drive motor (7), is mounted on the bed side support (1) at both ends via flange bearings (14).

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