阅读说明：本技术 一种基于传输带物流传输装置 (Logistics transmission device based on transmission belt ) 是由 彭莉珊 高云鹏 金洁 于 2018-09-27 设计创作，主要内容包括：本发明属于传输设备技术领域,尤其涉及一种基于传输带物流传输装置,它包括传输带、驱动电机、支架、第一滚轮、第二滚轮,该输出设备通过物流物的重力作用使得安装在第三支撑轴上的驱动链条轮与第二链条啮合；通过第二链条的移动来驱动驱动链条轮转动；通过驱动链条轮的转动来给传输带提供一个驱动力；通过该驱动力减小了传输带驱动物流物移动的拉力；相比于传统的传输设备,本发明设计的支撑轮能够在第二链条的带动下主动转动,通过转动给传输带提供驱动力,减小了传输带拉动物流物移动的拉力,保护了传输带；使得传输带的使用寿命变长；防止因为传输带在物流物重力作用下被拉长,而在长时间使用下,传输带就有可能被拉断；传输带使用寿命变短。(The invention belongs to the technical field of conveying equipment, and particularly relates to a conveying belt-based logistics conveying device, which comprises a conveying belt, a driving motor, a support, a first roller and a second roller, wherein the output equipment enables a driving chain wheel arranged on a third supporting shaft to be meshed with a second chain under the action of gravity of logistics objects; the driving chain wheel is driven to rotate through the movement of the second chain; a driving force is provided for the conveying belt by driving the chain wheel to rotate; the driving force reduces the pulling force of the conveying belt for driving the material to move; compared with the traditional conveying equipment, the supporting wheel designed by the invention can be driven by the second chain to rotate actively, and the driving force is provided for the conveying belt through rotation, so that the pulling force of the conveying belt for pulling the logistics objects to move is reduced, and the conveying belt is protected; the service life of the transmission belt is prolonged; the conveying belt is prevented from being stretched under the action of the gravity of the logistics objects, and the conveying belt can be broken when the conveying belt is used for a long time; the service life of the transmission belt is shortened.)

1. The utility model provides a based on transmission band commodity circulation transmission device which characterized in that: the device comprises a transmission belt, a first fixed shell, a second fixed shell, a driving motor, a bracket, a first roller, a first chain wheel, a second chain wheel, a first fixed ring, a first supporting shaft, a second fixed ring, a second roller, a second supporting shaft, a third chain wheel, a supporting wheel, a third supporting shaft, a first spring, a first fixed plate, a supporting plate, a mounting hole, a chain opening, a second fixed plate, a speed reducer, a first chain, a mounting square groove, a guide groove, a mounting groove, a first guide block, a second guide block, a driving chain wheel, a second chain, a fourth chain wheel, a first support, a second support, a guide block, a guide chain wheel, a fourth supporting shaft, a second spring and a limiting plate, wherein one end of the second fixed shell is an open end; two mounting holes are symmetrically formed in the inner side of the other end of the second fixing shell; two chain openings are formed on the inner lower side surface of the second fixed shell; one end of the first fixed shell is an opening end; the first fixing shell and the second fixing shell are symmetrically arranged at two ends of the upper side of the bracket, and open ends of the first fixing shell and the second fixing shell face each other; the driving motor is arranged at the lower side of one end of the first fixed shell through a first support; the speed reducer is arranged on the lower side of one end of the second fixed shell through a second support; the input shaft of the speed reducer is connected with the output shaft of the driving motor; the fourth chain wheel is arranged on an output shaft of the speed reducer; the two second fixing rings are symmetrically arranged on the side surface opposite to the opening end in the first fixing shell; the two first fixing rings are symmetrically arranged in two mounting holes formed in the second fixing shell; two ends of the first support shaft are respectively nested and installed on one second fixing ring and one first fixing ring which are positioned on one side close to the driving motor in the two second fixing rings and the two first fixing rings through bearings; the first roller is arranged on the first supporting shaft; the first chain wheel is arranged on the first supporting shaft; the second chain wheel is arranged on the first supporting shaft; a first chain is wound between the second chain wheel and the fourth chain wheel; the first chain passes through a chain opening formed in the second fixing shell; two ends of the second support shaft are respectively nested and installed on one second fixing ring and one first fixing ring which are positioned on one side far away from the driving motor in the two second fixing rings and the two first fixing rings through bearings; the second roller is arranged on the second support shaft; the third chain wheel is arranged on the second support shaft; a conveying belt is connected and installed between the first roller and the second roller;

a plurality of mounting square grooves are uniformly formed in the first fixing plate in sequence, and two guide grooves are symmetrically formed in two sides of the upper end of each mounting square groove; two mounting grooves are symmetrically formed in one side face of the first fixing plate; the two mounting grooves are respectively positioned at two sides of the mounting square groove; the first fixing plate is arranged on the side surface of the end, which is not provided with the opening, in the second fixing shell; the second fixing plate has a structure similar to that of the first fixing plate, except that the second fixing plate is not provided with a mounting groove; the second fixing plate is arranged on the side surface of the end, which is not provided with the opening, in the first fixing shell; two ends of the third supporting shaft are symmetrically nested with two second guide blocks, and the two ends of the third supporting shaft are in running fit with the two corresponding second guide blocks; two guide blocks are symmetrically arranged on the two second guide blocks; the third support shafts are respectively arranged between the first fixing plate and the second fixing plate through two second guide blocks arranged on the third support shafts and the installation square grooves formed in the first fixing plate and the second fixing plate in a matching mode, and the guide blocks arranged on the second guide blocks are matched with the corresponding guide grooves; a first spring is arranged between the second guide block and the lower side surface of the corresponding mounting square groove; each side surface in all the mounting square grooves is provided with a limiting plate, and the limiting plates on the two side surfaces are symmetrically arranged; the two limiting plates are positioned at the lower sides of the corresponding second guide blocks;

each third supporting shaft is provided with a supporting wheel, the third supporting shaft rotates to drive the supporting wheel arranged on the third supporting shaft to rotate, and the supporting wheel rotates to drive the conveying belt positioned on the upper side of the supporting wheel to move;

one end of each fourth support shaft is provided with a first guide block, and the two fourth support shafts are respectively arranged on the first fixing plate through the matching of the corresponding first guide blocks and the two mounting grooves formed in the first fixing plate; the two guide chain wheels are respectively arranged on the two fourth supporting shafts; the second chain is wound on the first chain wheel and the third chain wheel and bypasses the upper sides of the two guide chain wheels; the second chain is meshed with the two guide chain wheels; the second chain is matched with a driving chain wheel arranged on a third supporting shaft, and the distance between the part of the second chain at the lower side and the lower side of the outer circular surface of the driving chain wheel is 1-3 cm; the supporting plate is arranged on one side of the first fixing plate and is positioned on the lower side of the second chain, and the supporting plate is tightly attached to the second chain;

the first spring is a compression spring; the second spring is a compression spring;

the first guide block is arranged in the corresponding mounting groove through the matching of the guide block and the guide groove.

2. A conveyor belt-based logistics conveying apparatus as claimed in claim 1, wherein: the distance between the lower part of the second chain and the lower side of the outer circular surface of the driving chain wheel is 2 cm.

3. A conveyor belt-based logistics conveying apparatus as claimed in claim 1, wherein: two ends of the third supporting shaft are symmetrically nested and installed in the circular holes on the two second guide blocks through bearings.

Technical Field

The invention belongs to the technical field of transmission equipment, and particularly relates to a logistics transmission device based on a transmission belt.

Background

The logistics transportation equipment refers to mechanical equipment, appliances and the like required for carrying out various logistics activities. The belt conveyor can be used alone to finish forward and reverse conveying of goods, and can also form a complete three-dimensional automatic conveying system with only a lifter, a roller conveyor, a fixed belt conveyor, an assembly line and the like to finish the work of entering raw materials of products into a factory, producing, assembling, warehousing finished products, leaving the factory and loading and the like; however, when the belt conveyor is used, if goods are too heavy, the belt can be stretched under the gravity action of logistics objects, and when the belt conveyor is used for a long time, the belt can become soft and is easy to stretch out, the service life is short, and inconvenience is brought to users.

The invention designs a logistics conveying device based on a conveying belt to solve the problems.

Disclosure of Invention

In order to overcome the defects in the prior art, the invention discloses a logistics conveying device based on a conveying belt, which is realized by adopting the following technical scheme.

The utility model provides a based on transmission band commodity circulation transmission device which characterized in that: the device comprises a transmission belt, a first fixed shell, a second fixed shell, a driving motor, a bracket, a first roller, a first chain wheel, a second chain wheel, a first fixed ring, a first supporting shaft, a second fixed ring, a second roller, a second supporting shaft, a third chain wheel, a supporting wheel, a third supporting shaft, a first spring, a first fixed plate, a supporting plate, a mounting hole, a chain opening, a second fixed plate, a speed reducer, a first chain, a mounting square groove, a guide groove, a mounting groove, a first guide block, a second guide block, a driving chain wheel, a second chain, a fourth chain wheel, a first support, a second support, a guide block, a guide chain wheel, a fourth supporting shaft, a second spring and a limiting plate, wherein one end of the second fixed shell is an open end; two mounting holes are symmetrically formed in the inner side of the other end of the second fixing shell; two chain openings are formed on the inner lower side surface of the second fixed shell; one end of the first fixed shell is an opening end; the first fixing shell and the second fixing shell are symmetrically arranged at two ends of the upper side of the bracket, and open ends of the first fixing shell and the second fixing shell face each other; the driving motor is arranged at the lower side of one end of the first fixed shell through a first support; the speed reducer is arranged on the lower side of one end of the second fixed shell through a second support; the input shaft of the speed reducer is connected with the output shaft of the driving motor; the fourth chain wheel is arranged on an output shaft of the speed reducer; the two second fixing rings are symmetrically arranged on the side surface opposite to the opening end in the first fixing shell; the two first fixing rings are symmetrically arranged in two mounting holes formed in the second fixing shell; two ends of the first support shaft are respectively nested and installed on one second fixing ring and one first fixing ring which are positioned on one side close to the driving motor in the two second fixing rings and the two first fixing rings through bearings; the first roller is arranged on the first supporting shaft; the first chain wheel is arranged on the first supporting shaft; the second chain wheel is arranged on the first supporting shaft; a first chain is wound between the second chain wheel and the fourth chain wheel; the first chain passes through a chain opening formed in the second fixing shell; two ends of the second support shaft are respectively nested and installed on one second fixing ring and one first fixing ring which are positioned on one side far away from the driving motor in the two second fixing rings and the two first fixing rings through bearings; the second roller is arranged on the second support shaft; the third chain wheel is arranged on the second support shaft; a transmission belt is connected and installed between the first roller and the second roller.

A plurality of mounting square grooves are uniformly formed in the first fixing plate in sequence, and two guide grooves are symmetrically formed in two sides of the upper end of each mounting square groove; two mounting grooves are symmetrically formed in one side face of the first fixing plate; the two mounting grooves are respectively positioned at two sides of the mounting square groove; the first fixing plate is arranged on the side surface of the end, which is not provided with the opening, in the second fixing shell; the second fixing plate has a structure similar to that of the first fixing plate, except that the second fixing plate is not provided with a mounting groove; the second fixing plate is arranged on the side surface of the end, which is not provided with the opening, in the first fixing shell; two ends of the third supporting shaft are symmetrically nested with two second guide blocks, and the two ends of the third supporting shaft are in running fit with the two corresponding second guide blocks; two guide blocks are symmetrically arranged on the two second guide blocks; the third support shafts are respectively arranged between the first fixing plate and the second fixing plate through two second guide blocks arranged on the third support shafts and the installation square grooves formed in the first fixing plate and the second fixing plate in a matching mode, and the guide blocks arranged on the second guide blocks are matched with the corresponding guide grooves; a first spring is arranged between the second guide block and the lower side surface of the corresponding mounting square groove; each side surface in all the mounting square grooves is provided with a limiting plate, and the limiting plates on the two side surfaces are symmetrically arranged; the two limiting plates are positioned at the lower sides of the corresponding second guide blocks.

Every third back shaft all installs the supporting wheel, and the third back shaft rotates and drives the supporting wheel of installing above that and rotate, and the supporting wheel rotates and drives the transmission band that is located its upside and remove.

One end of each fourth support shaft is provided with a first guide block, and the two fourth support shafts are respectively arranged on the first fixing plate through the matching of the corresponding first guide blocks and the two mounting grooves formed in the first fixing plate; the two guide chain wheels are respectively arranged on the two fourth supporting shafts; the second chain is wound on the first chain wheel and the third chain wheel and bypasses the upper sides of the two guide chain wheels; the second chain is meshed with the two guide chain wheels; the second chain is matched with a driving chain wheel arranged on a third supporting shaft, and the distance between the part of the second chain at the lower side and the lower side of the outer circular surface of the driving chain wheel is 1-3 cm; the backup pad is installed in one side of first fixed plate, and the backup pad is located the downside of second chain, and the backup pad closely laminates with the second chain.

As a further improvement of the present technology, the first spring is a compression spring; the second spring is a compression spring.

As a further improvement of the technology, the first guide block is installed in the corresponding installation groove through the matching of the guide block and the guide groove.

As a further improvement of the technology, the distance between the lower part of the second chain and the lower side of the outer circular surface of the driving chain wheel is 2 cm; the drive chain wheel can be better ensured to be meshed with the second chain.

As a further improvement of the technology, the two ends of the third supporting shaft are symmetrically nested and installed in the circular holes on the two second guide blocks through bearings.

When the driving motor works, the driving motor drives the fourth chain wheel arranged on the output shaft of the speed reducer to rotate through the speed reducer; the fourth chain wheel rotates to drive the second chain wheel to rotate through the first chain; the second chain wheel rotates to drive the first supporting shaft to rotate; the first support shaft rotates to drive the first idler wheel and the first chain wheel which are arranged on the first support shaft to rotate; the first chain wheel rotates to drive the third chain wheel to rotate through the second chain; the first roller rotates and drives the second roller to rotate through the transmission belt; under normal conditions, the second chain is in a disengagement state with the drive chain wheel mounted on the third support shaft, and rotation of the second chain does not affect rotation of the drive chain wheel.

When the logistics objects are placed on the conveying belt, the logistics objects can downwards press the conveying belt through the gravity of the logistics objects, so that the conveying belt on the lower side of the logistics objects is compressed into a bow shape, and the whole conveying belt is elongated; during the process that the conveying belt at the lower side of the logistics is compressed, the conveying belt presses the supporting wheel at the lower side of the conveying belt, so that the supporting wheel moves downwards; the supporting wheel moves downwards to drive the third supporting shaft to move downwards; the third supporting shaft moves downwards to drive the second guide blocks arranged on the two sides of the third supporting shaft to move downwards along the corresponding mounting square grooves; meanwhile, the third support shaft moves downwards and drives the driving chain wheel arranged on the third support shaft to move downwards; when the driving chain wheel is meshed with the part of the second chain, which is positioned at the lower side, in the process of downwards moving the driving chain wheel, the driving chain wheel is driven to rotate by the movement of the second chain; the driving chain wheel drives the corresponding third supporting shaft to rotate; the third support shaft rotates to drive the support wheel arranged on the third support shaft to rotate, and the support wheel rotates to drive the transmission belt positioned on the upper side of the support wheel to move; the conveying belt moves to drive the logistics objects on the conveying belt to move; in the process, the driving chain wheel is driven to rotate actively through the second chain, the supporting wheel is not driven to rotate through the transmission belt under the friction action, and the supporting wheel drives the driving chain wheel to rotate through the third supporting shaft; according to the invention, the third support shaft is driven to rotate by the driving rotation of the driving chain wheel; the third supporting shaft rotates to drive the supporting wheel to rotate; the supporting wheel rotates to drive the conveying belt to move through friction; in the process, the movement of the conveying belt is actively driven by the supporting wheel, and the rotation of the supporting wheel provides a driving force for the movement of the conveying belt, so that the pulling force for pulling the logistics objects to move by the conveying belt is reduced, and the conveying belt is protected; meanwhile, in the process, the logistics objects can downwards press the transmission belt through the gravity of the logistics objects, so that the transmission belt on the lower side of the logistics objects is compressed into a bow shape, the transmission belt is integrally elongated, and if the transmission belt needs to provide a large pulling force for the logistics objects at the moment, the transmission belt can be broken after a long time.

In the invention, during the meshing process of the second chain and the driving chain wheel positioned at the lower side of the material flow, if the teeth on the driving chain wheel are not completely matched with the teeth buckles of the second chain, under the action of the teeth on the driving chain wheel, the driving chain wheel can pull the second rack to move forwards and jump forwards for a certain distance compared with the natural movement of the second rack, so that the teeth on the driving chain wheel and the tooth buckles of the second chain are in a complete matching state, in the process, the jumping of the second chain presses the two guide chain wheels meshed with the second chain through the tooth buckles on the second chain so that the two guide chain wheels move downwards relative to the second chain, the jumping of the second rack is adapted through the downward movement, so that the two guide chain wheels and the second rack are continuously in a meshed state, simultaneously, the teeth on the driving chain wheel and the teeth buckles of the second chain are in a complete matching state; in this process, the second spring provides restoring force to the guide chain wheel, and simultaneously the guide chain wheel does not interfere with the second chain in the downward moving process through the second spring.

When the gravity of the logistics objects enables the second guide block to move downwards to be just contacted with the corresponding limiting plate, the limiting plate provides a supporting effect for the second guide block, and in the state, the second chain and the corresponding driving chain wheel are just in a meshing state, and the driving chain wheel has no downward pressure on the second chain; the gravity of the logistics object is critical gravity, when the gravity of the logistics object is larger than the critical gravity, the driving chain wheel has downward pressure on the second chain, and in the state, the supporting plate plays a role in supporting the second chain, so that the second chain is prevented from bending downwards due to the pressure applied for a long time, and further the engagement with the driving chain wheel at the designed position cannot be guaranteed; the transmission device designed by the invention is suitable for the logistics objects with the gravity of more than or equal to the gravity of the critical logistics objects, and if the object is lighter than the critical weight, the driving chain wheel cannot be meshed with the second chain.

Compared with the traditional conveying equipment technology, the output equipment designed by the invention enables the driving chain wheel arranged on the third supporting shaft to be meshed with the second chain through the gravity action of the logistics; the driving chain wheel is driven to rotate through the movement of the second chain; a driving force is provided for the conveying belt by driving the chain wheel to rotate; the driving force reduces the pulling force of the conveying belt for driving the material to move; compared with the traditional conveying equipment, the supporting wheel designed by the invention can be driven by the second chain to rotate actively, and the driving force is provided for the conveying belt through rotation, so that the pulling force of the conveying belt for pulling the logistics objects to move is reduced, and the conveying belt is protected; the service life of the transmission belt is prolonged; prevent because the transmission band is elongated under commodity circulation thing action of gravity, and under long-time the use, the transmission band just probably is broken, and transmission band life shortens.

Drawings

Fig. 1 is an external view of an entire part.

Fig. 2 is a schematic view of the overall component distribution.

FIG. 3 is a schematic view of a first roller installation.

Fig. 4 is a second roller mounting schematic.

Fig. 5 is a schematic view of the support wheel installation.

Fig. 6 is a structural schematic view of a second stationary housing.

Fig. 7 is a structural schematic view of the first stationary case.

Fig. 8 is a schematic view of a conveyor belt installation.

Fig. 9 is a schematic diagram of a first fixing plate structure.

Fig. 10 is a second chain winding schematic.

FIG. 11 is a schematic view of the second chain and drive sprocket engagement.

Fig. 12 is a schematic view of support wheel distribution.

Fig. 13 is a drive motor installation schematic.

FIG. 14 is a schematic view of a first chaining wheel installation.

FIG. 15 is a schematic view of a third chaining wheel installation.

Fig. 16 is a second guide block installation schematic.

FIG. 17 is a schematic view of a guide sprocket installation.

Figure 18 is a schematic view of a second fixed ring structure.

Fig. 19 is a schematic view of the installation of the stopper plate.

Number designation in the figures: 1. a conveyor belt; 2. a first stationary case; 3. a second stationary case; 4. a drive motor; 5. a support; 6. a first roller; 7. a first chain wheel; 8. a second chain wheel; 9. a first retaining ring; 10. a first support shaft; 11. a second retaining ring; 12. a second roller; 13. a second support shaft; 14. a third chain wheel; 15. a support wheel; 16. a third support shaft; 17. a first spring; 18. a first fixing plate; 19. a support plate; 21. mounting holes; 22. a chain opening; 23. a second fixing plate; 24. a speed reducer; 25. a first chain; 26. installing a square groove; 27. a guide groove; 28. mounting grooves; 29. a first guide block; 31. a second guide block; 32. a drive chain wheel; 33. a second chain; 34. a fourth chain wheel; 35. a first support; 36. a second support; 38. a guide block; 39. a guide chain wheel; 40. a fourth support shaft; 41. a second spring; 42. and a limiting plate.

Detailed Description

As shown in fig. 1 and 2, it comprises a conveyor belt 1, a first fixed housing 2, a second fixed housing 3, a driving motor 4, a bracket 5, a first roller 6, a first chain wheel 7, a second chain wheel 8, a first fixed ring 9, a first supporting shaft 10, a second fixed ring 11, a second roller 12, a second supporting shaft 13, a third chain wheel 14, a supporting wheel 15, a third supporting shaft 16, a first spring 17, a first fixed plate 18, a supporting plate 19, the chain wheel driving device comprises a mounting hole 21, a chain opening 22, a second fixing plate 23, a speed reducer 24, a first chain 25, a mounting square groove 26, a guide groove 27, a mounting groove 28, a first guide block 29, a second guide block 31, a driving chain wheel 32, a second chain 33, a fourth chain wheel 34, a first support 35, a second support 36, a guide block 38, a guide chain wheel 39, a fourth support shaft 40, a second spring 41 and a limiting plate 42, wherein one end of the second fixing shell 3 is an open end as shown in fig. 6; two mounting holes 21 are symmetrically formed in the inner side of the other end of the second fixing shell 3; two chain openings 22 are formed on the inner lower side surface of the second fixed shell 3; as shown in fig. 7, one end of the first stationary case 2 is an open end; as shown in fig. 1, the first and second stationary cases 2 and 3 are symmetrically installed at both ends of the upper side of the bracket 5, and the open ends of the first and second stationary cases 2 and 3 face each other; as shown in fig. 13, the driving motor 4 is mounted at a lower side of one end of the first stationary case 2 through a first support 35; the decelerator 24 is installed at the lower side of one end of the second stationary case 3 through the second support 36; the input shaft of the speed reducer 24 is connected with the output shaft of the driving motor 4; the fourth chain wheel 34 is mounted on the output shaft of the speed reducer 24; as shown in fig. 3, 4, 18, two second fixing rings 11 are symmetrically installed on the side opposite to the open end in the first fixing case 2; the two first fixing rings 9 are symmetrically arranged in two mounting holes 21 formed in the second fixing shell 3; as shown in fig. 3, both ends of the first support shaft 10 are respectively mounted on one of the two second fixing rings 11 and the first fixing ring 9 located on the side close to the driving motor 4, among the two second fixing rings 11 and the two first fixing rings 9, by bearing nesting; as shown in fig. 14, the first roller 6 is mounted on the first support shaft 10; the first chain wheel 7 is mounted on the first support shaft 10; the second chaining wheel 8 is mounted on the first supporting shaft 10; as shown in FIG. 13, the first chain 25 is wound between the second sprocket 8 and the fourth sprocket 34; the first chain 25 passes through a chain opening 22 formed on the second fixing case 3; as shown in fig. 4, both ends of the second support shaft 13 are respectively mounted on one of the two second fixing rings 11 and the first fixing ring 9 located on a side away from the drive motor 4 among the two second fixing rings 11 and the two first fixing rings 9 by bearing nesting; as shown in fig. 15, the second roller 12 is mounted on the second support shaft 13; as shown in fig. 8, the third chaining wheel 14 is mounted on the second support shaft 13; the conveyor belt 1 is connected and mounted between the first roller 6 and the second roller 12.

As shown in fig. 9, a plurality of installation square grooves 26 are sequentially and uniformly formed on the first fixing plate 18, and two guide grooves 27 are symmetrically formed on both sides of the upper end of each installation square groove 26; two mounting grooves 28 are symmetrically formed on one side surface of the first fixing plate 18; the two mounting grooves 28 are respectively positioned at two sides of the mounting square groove 26; as shown in fig. 5, the first fixing plate 18 is mounted on the side of the non-opened end in the second fixing case 3; the second fixing plate 23 has a structure similar to that of the first fixing plate 18, except that the second fixing plate 23 is not provided with a mounting groove 28; the second fixing plate 23 is installed on the side of the non-opened end in the first fixing case 2; as shown in fig. 16, two second guide blocks 31 are symmetrically nested and mounted at two ends of the third support shaft 16, and two ends of the third support shaft 16 are in running fit with the two corresponding second guide blocks 31; two guide blocks 38 are symmetrically arranged on the two second guide blocks 31; as shown in fig. 2 and 5, the plurality of third support shafts 16 are respectively mounted between the first fixing plate 18 and the second fixing plate 23 by two second guide blocks 31 mounted thereon in cooperation with the mounting square grooves 26 opened in the first fixing plate 18 and the second fixing plate 23, and as shown in fig. 12, guide blocks 38 mounted on the second guide blocks 31 in cooperation with the corresponding guide grooves 27. A first spring 17 is arranged between the second guide block 31 and the lower side surface of the mounting square groove 26; as shown in fig. 19, one limiting plate 42 is mounted on each side surface in all the mounting square grooves 26, and the limiting plates 42 on the two side surfaces are symmetrically arranged; the two limit plates 42 are located at the lower side of the corresponding second guide blocks 31.

Each third supporting shaft 16 is provided with a supporting wheel 15, the third supporting shaft 16 rotates to drive the supporting wheel 15 arranged thereon to rotate, and the supporting wheel 15 rotates to drive the conveying belt 1 positioned on the upper side thereof to move.

As shown in fig. 17, a first guide block 29 is mounted at one end of each of the fourth support shafts 40, and the two fourth support shafts 40 are mounted on the first fixing plate 18 through the matching of the corresponding first guide blocks 29 and the two mounting grooves 28 formed on the first fixing plate 18; the two guide chain wheels 39 are respectively arranged on two fourth supporting shafts 40; as shown in fig. 10, the second chain 33 is wound around the first chain wheel 7 and the third chain wheel 14, and the second chain 33 is wound around the upper sides of the two guide chain wheels 39; the second chain 33 is engaged with two guide chain wheels 39; as shown in fig. 11, the second chain 33 is engaged with the drive sprocket 32 mounted on the third support shaft 16, and a distance between a portion of the second chain 33 at the lower side and the lower side of the outer circumferential surface of the drive sprocket 32 is 1-3 cm; the supporting plate 19 is installed at one side of the first fixing plate 18, and the supporting plate 19 is located at the lower side of the second chain 33, and the supporting plate 19 is closely attached to the second chain 33.

The first spring 17 is a compression spring; the second spring 41 is a compression spring.

The first guide block 29 is mounted in the corresponding mounting groove 28 by the cooperation of the guide block and the guide groove 27.

The distance between the lower part of the second chain 33 and the lower part of the outer circular surface of the driving sprocket 32 is 2 cm; the engagement of the drive sprocket 32 with the second chain 33 is better ensured.

The two ends of the third supporting shaft 16 are symmetrically nested in the circular holes of the two second guide blocks 31 through bearings.

In summary, the following steps:

the beneficial effects of the design of the invention are as follows: the output device causes the driving sprocket 32 mounted on the third support shaft 16 to engage with the second chain 33 by the gravity of the material; the driving chain wheel 32 is driven to rotate by the movement of the second chain 33; a driving force is provided to the belt 1 by driving the rotation of the chain wheel 32; the driving force reduces the pulling force of the conveying belt 1 for driving the material to move; compared with the traditional conveying equipment, the supporting wheel 15 designed by the invention can be driven by the second chain 33 to rotate actively, and provides driving force for the conveying belt 1 through rotation, so that the pulling force of the conveying belt 1 for pulling the logistics objects to move is reduced, and the conveying belt 1 is protected; the service life of the transmission belt 1 is prolonged; the situation that the conveying belt 1 is pulled apart due to the gravity of the physical distribution objects and the conveying belt 1 is broken when being used for a long time is prevented; the service life of the transmission belt 1 becomes short.

When the driving motor 4 works, the driving motor 4 drives the fourth chain wheel 34 arranged on the output shaft of the speed reducer 24 to rotate through the speed reducer 24; the fourth chain wheel 34 rotates to drive the second chain wheel 8 to rotate through the first chain 25; the second chain wheel 8 rotates to drive the first supporting shaft 10 to rotate; the first supporting shaft 10 rotates to drive the first idler wheel 6 and the first chain wheel 7 which are arranged on the first supporting shaft to rotate; the rotation of the first sprocket 7 drives the rotation of the third sprocket 14 via the second chain 33; the first roller 6 rotates to drive the second roller 12 to rotate through the transmission belt 1; in a normal state, the second chain 33 is in a disengaged state from the drive sprocket 32 mounted on the third support shaft 16, and the rotation of the second chain 33 does not affect the rotation of the drive sprocket 32.

When the material flow objects are placed on the conveying belt 1, the material flow objects downwards press the conveying belt 1 through the gravity of the material flow objects, so that the conveying belt 1 on the lower side of the conveying belt is compressed into a bow shape, and the whole conveying belt 1 is elongated; during the process that the conveyor belt 1 on the lower side of the material flow is compressed, the conveyor belt 1 presses the supporting wheel 15 on the lower side of the conveyor belt so that the supporting wheel 15 moves downwards; the supporting wheel 15 moves downwards to drive the third supporting shaft 16 to move downwards; the downward movement of the third supporting shaft 16 drives the second guide blocks 31 installed at both sides thereof to move downward along the corresponding installation square grooves 26; meanwhile, the downward movement of the third supporting shaft 16 also drives the driving chain wheel 32 mounted thereon to move downward; during the downward movement of the driving sprocket 32, when the driving sprocket 32 is engaged with the lower portion of the second chain 33, the second chain 33 is moved to rotate the driving sprocket 32; the driving chaining wheel 32 drives the corresponding third supporting shaft 16 to rotate; the third supporting shaft 16 rotates to drive the supporting wheel 15 arranged on the third supporting shaft to rotate, and the supporting wheel 15 rotates to drive the conveying belt 1 positioned on the upper side of the supporting wheel to move; the conveying belt 1 moves to drive the logistics objects on the conveying belt to move; in the process, the driving sprocket 32 is actively driven to rotate by the second chain 33, rather than the supporting sprocket 15 being driven to rotate by the friction of the transmission belt 1, the supporting sprocket 15 is driven to rotate by the third supporting shaft 16; the driving rotation of the driving chain wheel 32 drives the third supporting shaft 16 to rotate; the third supporting shaft 16 rotates to drive the supporting wheel 15 to rotate; the supporting wheel 15 rotates to drive the conveying belt 1 to move through friction; in the process, the movement of the conveying belt 1 is actively driven by the supporting wheel 15, and the rotation of the supporting wheel 15 provides a driving force for the movement of the conveying belt 1, so that the pulling force for pulling the logistics objects to move by the conveying belt 1 is reduced, and the conveying belt 1 is protected; meanwhile, in the process, the logistics objects downwards press the conveying belt 1 through the gravity of the logistics objects, so that the conveying belt 1 on the lower side of the logistics objects is compressed into a bow shape, the whole conveying belt 1 is elongated, and if the conveying belt 1 needs to provide a large pulling force for the logistics objects at the moment, the conveying belt 1 can be pulled off for a long time, so that the supporting wheel 15 designed in the invention can be driven by the second chain 33 to rotate actively, the driving force is provided for the conveying belt 1 through rotation, the pulling force for the conveying belt 1 to pull the logistics objects to move is reduced, the conveying belt 1 is protected, and the service life of the conveying belt 1 is prolonged.

In the present invention during the engagement of the second chain 33 with the driving sprocket 32 provided at the lower side of the physical distribution, if the teeth on the drive sprocket 32 are not fully engaged with the teeth catches of the second chain 33, under the action of the teeth on the drive sprocket 32, the drive sprocket 32 will pull the second chain forward to jump a certain distance rapidly compared to its natural movement, so that the teeth on the drive sprocket 32 are in complete engagement with the teeth catches of the second chain 33, in the process, the jumping of the second chain 33 presses the two guide sprockets 39 engaged therewith through the buckles thereon, so that the two guide sprockets 39 move downward relative to the second chain 33, by moving downwards, to accommodate the run-out of the second chain, so that the two guide sprockets 39 continue to engage the second chain, meanwhile, the teeth on the driving chain wheel 32 and the teeth buckles of the second chain 33 are in a complete matching state; in this process, the second spring 41 provides a restoring force to the guide sprocket 39 while the guide sprocket 39 does not interfere with the second chain 33 during the downward movement by the second spring 41.

When the gravity of the material flow enables the second guide block 31 to move downwards to just contact with the corresponding limiting plate 42, the limiting plate 42 provides a supporting effect for the second guide block 31, in this state, the second chain 33 and the corresponding driving chain wheel 32 are just in an engaged state, and the driving chain wheel 32 has no downward pressure on the second chain 33; the gravity of the material flow is critical gravity, when the gravity of the material flow is larger than the critical gravity, the driving chain wheel 32 has downward pressure on the second chain 33, and in this state, the supporting plate 19 supports the second chain 33, so that the second chain 33 is prevented from bending downwards due to the pressure applied for a long time, and the engagement with the driving chain wheel at the designed position cannot be guaranteed; the transmission device designed by the invention is suitable for the logistics objects with the gravity of more than or equal to the gravity of the critical logistics objects, and if the object is lighter than the critical weight, the driving chain wheel cannot be meshed with the second chain.