CN211077592U

CN211077592U - Short-distance conveying wheel structure of material conveying equipment

Info

Publication number: CN211077592U
Application number: CN201921676789.7U
Authority: CN
Inventors: 萧浩强
Original assignee: Foshan Haoyang Woodworking Machinery Manufacturing Co ltd
Current assignee: Foshan Haoyang Woodworking Machinery Manufacturing Co ltd
Priority date: 2019-09-30
Filing date: 2019-09-30
Publication date: 2020-07-24
Anticipated expiration: 2029-09-30

Abstract

A short-distance conveying wheel structure of material conveying equipment comprises a power output assembly, a machine shell, a power transmission assembly and conveying wheel devices, wherein the power output assembly is arranged on the machine shell, the power transmission assembly is arranged in the machine shell and is in transmission connection with the power output assembly, at least two conveying wheel devices are in a group and are provided with a plurality of groups, the plurality of groups of conveying wheel devices are transversely arranged in the machine shell, and the at least two conveying wheel devices in a group comprise a first conveying wheel component and a second conveying wheel component; the power transmission assembly is in transmission connection with the first conveying wheel assembly and the second conveying wheel assembly respectively; the power output assembly drives the first conveying wheel assembly and the second conveying wheel assembly to rotate on the machine shell through the power transmission assembly so as to realize the conveying of materials; the first conveying wheel assemblies and the second conveying wheel assemblies are at least partially arranged in a longitudinally staggered mode so as to reduce the transverse distance between the adjacent conveying wheel devices of the plurality of groups. The utility model discloses an above-mentioned structure's improvement, the practicality is strong.

Description

Short-distance conveying wheel structure of material conveying equipment

Technical Field

The utility model relates to a short distance of equipment is transported to material transports wheel structure.

Background

The material is required to be conveyed to a designated position before the material is processed, so that the material is convenient for a worker to take and then is placed on a numerical control machine tool for processing, the material is conveyed beside the machine tool by a conveyor in the traditional conveying process, the material is conveyed by the worker, and the material is often clamped at a discharge port due to the position deviation of the material in the material conveying process, so that manual cleaning is required, a large amount of time is wasted, and the processing efficiency is influenced, so that a part of numerical control automatic material feeder is developed by related technicians to feed the material, but the distance between adjacent material feeding wheel sets of the material feeder with the structure is large, more space in a shell is occupied during assembly, the whole volume of the material feeder is large, meanwhile, the material feeder is only suitable for pressure feeding the wood with large length, and is not suitable for pressure feeding the wood with short length, the use requirements of users cannot be met. Therefore, further improvements are necessary.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a simple structure is reasonable, the performance is excellent, it is convenient to use, low in manufacturing cost, easy production, easy realization, the energy consumption is low, small, connect between each component compact, application range wide and safe and reliable's material transport the short distance of equipment and transport a round structure to overcome the weak point among the prior art.

According to the short distance of this purpose design transport wheel structure of a material conveying equipment, including power take off assembly, casing, power transmission assembly and transport wheel device, its characterized in that: the power output assembly is arranged on the shell, the power transmission assembly is arranged in the shell and is in transmission connection with the power output assembly, at least two of the conveying wheel devices are in one group and are provided with a plurality of groups, the plurality of groups of conveying wheel devices are transversely arranged in the shell, and the at least two conveying wheel devices in one group comprise a first conveying wheel component and a second conveying wheel component; the power transmission assembly is in transmission connection with the first conveying wheel assembly and the second conveying wheel assembly respectively; the power output assembly drives the first conveying wheel assembly and the second conveying wheel assembly to rotate on the machine shell through the power transmission assembly so as to realize the conveying of materials; the first conveying wheel assemblies and the second conveying wheel assemblies are at least partially arranged in a longitudinally staggered mode, so that the transverse distance between the adjacent conveying wheel devices of the plurality of groups is reduced.

The first conveying wheel assembly at least comprises a first rotating bracket, a first protection box, a short chain wheel shaft, a first driven chain wheel shaft and a first conveying wheel; the first rotating support is provided with a first assembling part and a second assembling part, the first protection box is arranged on the first rotating support, and a first chain wheel set is arranged in the first protection box; the power output assembly drives the first conveying wheel to rotate on the first rotating support through the matching of the short chain wheel shaft, the first chain wheel set and the first driven chain wheel shaft.

The second conveying wheel assembly at least comprises a second rotating bracket, a second protection box, a long chain wheel shaft, a second driven chain wheel shaft and a second conveying wheel; the second rotating support is provided with a third assembling part and a fourth assembling part, the second protection box is arranged on the second rotating support and is internally provided with a second chain wheel set, one end of the long chain wheel shaft is in transmission connection with the power transmission assembly, the other end of the long chain wheel shaft is arranged on the third assembling part in a penetrating way and is in transmission connection with the second chain wheel set, one end of a second driven chain wheel shaft is arranged on the fourth assembling part in a penetrating way and is in transmission connection with the second chain wheel set, and the other end of the second driven chain wheel shaft is fixedly connected with the second conveying wheel; and the power output assembly drives the second conveying wheel to rotate on the second rotating support through the matching of the long chain wheel shaft, the second chain wheel group and the second driven chain wheel shaft.

The first protection box is arranged on the first rotating support in a leaning mode, the second protection box is arranged on the second rotating support in a spacing mode, a spacing part is formed between the first protection box and the second rotating support, and at least part of the side part of the first protection box and/or the first rotating support extends into the spacing part and is longitudinally arranged in a staggered mode with the second protection box and/or the second rotating support, so that the transverse distance between the first conveying wheel assembly and the second conveying wheel assembly is reduced.

Or the second protection box is arranged on the second rotating bracket in a leaning manner, the first protection box is arranged on the first rotating bracket in a spacing manner, a spacing part is formed between the first protection box and the first rotating bracket, and the side part of the second protection box and/or the second rotating bracket at least partially extends into the spacing part and is longitudinally staggered with the first protection box and/or the first rotating bracket so as to reduce the transverse distance between the first conveying wheel assembly and the second conveying wheel assembly.

The first chain wheel group is arranged in the first protection box and comprises a first connecting chain and a first connecting chain wheel, and a first driven chain wheel part is arranged on a first driven chain wheel shaft; the short chain wheel shaft is fixedly connected with the first connecting chain wheel, is provided with a short chain wheel part and is in transmission connection with the power transmission assembly through the short chain wheel part; the first connecting chain is in transmission engagement with the first connecting chain wheel and the first driven shaft chain wheel part respectively.

The first assembling part is also fixedly provided with a short chain wheel axle sleeve; the short chain wheel shaft is rotatably sleeved in the short chain wheel shaft sleeve.

The second chain wheel set is arranged in the second protection box and comprises a second connecting chain and a second connecting chain wheel, and a second driven chain wheel part is arranged on a second driven chain wheel shaft; the long chain wheel shaft is fixedly connected with the second connecting chain wheel, is provided with a long shaft chain wheel part and is in transmission connection with the power transmission assembly through the long shaft chain wheel part; and the second connecting chain is in transmission engagement with the second connecting chain wheel and the second driven shaft chain wheel part respectively.

The third assembling part is also fixedly provided with a long chain wheel shaft sleeve; the long chain wheel shaft is rotatably sleeved in the long chain wheel shaft sleeve.

Lubricating oil is respectively arranged in the first protection box and the second protection box corresponding to the first chain wheel set and the second chain wheel set; the first protection box and the second protection box are respectively composed of a first adapter and a second adapter, and the first adapter is connected with the second adapter in a matched mode to form a cavity for containing lubricating oil; wherein, rotate each other between first adaptor one end and the second adaptor one end and be connected, be provided with the elasticity piece between the first adaptor other end and the second adaptor other end, just loosen each other or locking cooperation through the elasticity piece.

The power output assembly at least comprises a motor, a turbine shaft and a driving tooth, the turbine shaft is in transmission connection with the motor, and the driving tooth is fixedly arranged on the turbine shaft; the power transmission assembly at least comprises a main transition shaft, a main transmission gear, an auxiliary transmission gear, a transition transmission gear group and a transition transmission chain; the main transition shaft is fixedly arranged in the machine shell, the main transmission teeth are in transmission meshing with the main transmission teeth and are in transmission connection with the auxiliary transmission teeth, the number of the transition transmission tooth groups and the number of the transition transmission chains corresponding to the number of the conveying wheel devices are mutually corresponding, the auxiliary transmission teeth are in transmission meshing with the transition transmission tooth groups, the transition transmission tooth groups are in transmission meshing with the short-chain wheel shaft of the first conveying wheel assembly or the long-chain wheel shaft of the second conveying wheel assembly, and the transition transmission chains are in transmission meshing with the short-chain wheel shaft and the long-chain wheel shaft respectively.

The motor drives the turbine shaft to rotate in the shell, and drives the main transmission gear and the auxiliary transmission gear to rotate on the main transition shaft through the driving gear when the turbine shaft rotates, and the main transmission gear and the auxiliary transmission gear respectively drive the plurality of groups of conveying wheel devices to rotate on the shell through the meshing of the transition transmission gear group and the transition transmission chain when the turbine shaft rotates, so that the conveying of materials is realized.

The utility model discloses an improvement of above-mentioned structure, utilize between the adjacent transport wheel subassembly at least part to be the mode of vertical phase staggered arrangement to reduce the horizontal distance between a plurality of groups transport wheel device is adjacent, not only can reduce a plurality of groups transport wheel device and occupy the casing inner space, make the whole volume of material conveying equipment still less, and then reduce the field of vision that the user was when the operation and shield, can also improve the connection compactness between each component, material conveying equipment can also be applicable to the material conveying of shorter length simultaneously, thereby improve the application range and the convenience of material conveying equipment; moreover, the plurality of groups of conveying wheel devices rotate on the shell through the matching of the power output assembly and the power transmission assembly, so that the overall structure of the material conveying equipment can be simplified, the daily maintenance of a user is facilitated, and the transmission effect is good, so that the working energy consumption of the material conveying equipment is reduced, and the production cost is reduced; meanwhile, the conveying wheel assembly is provided with a protection box for placing lubricating oil corresponding to the chain wheel assembly, the lubricating oil can be placed to effectively ensure that the chain wheel assembly runs smoothly, the service life of the conveying wheel assembly can be prolonged, the protection box is composed of a first adapter and a second adapter, one end of the first adapter and one end of the second adapter are rotatably connected, the other end of the first adapter is in loose fit through a loose part, therefore, a user can place the lubricating oil and replace the chain wheel assembly inside the protection box only by loosening the loose part when using the conveying wheel assembly, the problem that the whole machine needs to be detached when the conveying wheel assembly is maintained by the user is avoided, the user can increase the lubricating oil quickly and conveniently, meanwhile, the whole machine does not need to be detached when the protection box is replaced or disassembled, the convenience and quickness of the user are improved, and.

In summary, the novel energy-saving device has the characteristics of simple and reasonable structure, excellent performance, convenience in use, low manufacturing cost, easiness in production, easiness in implementation, low energy consumption, small volume, compact connection among components, wide application range, safety, reliability and the like, and is high in practicability.

Drawings

Fig. 1 is an exploded schematic view of a first embodiment of the present invention.

Fig. 2 is a schematic view of a first viewing angle assembly structure according to a first embodiment of the present invention.

Fig. 3 is a schematic view of a second viewing angle assembly structure according to the first embodiment of the present invention.

Fig. 4 is a schematic view of a third viewing angle assembly structure according to the first embodiment of the present invention.

Fig. 5 is a schematic view of the structure of fig. 3 taken along line a-a.

Fig. 6 is an exploded view of the first conveying wheel assembly according to the first embodiment of the present invention.

Fig. 7 is a schematic view of an assembly structure of the first conveying wheel assembly according to the first embodiment of the present invention.

Fig. 8 is an exploded view of a second conveying wheel assembly according to the first embodiment of the present invention.

Fig. 9 is a schematic view of an assembly structure of the second conveying wheel assembly according to the first embodiment of the present invention.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and examples.

Referring to fig. 1 to 9, the short-distance conveying wheel structure of the material conveying equipment comprises a power output assembly, a machine shell 1, a power transmission assembly and conveying wheel devices, wherein the power output assembly is arranged on the machine shell 1, the power transmission assembly is arranged in the machine shell 1 and is in transmission connection with the power output assembly, at least two of the conveying wheel devices are in one group and are provided with a plurality of groups, the plurality of groups of conveying wheel devices are transversely arranged in the machine shell 1, and the at least two conveying wheel devices in one group comprise a first conveying wheel assembly 2 and a second conveying wheel assembly 3; the power transmission assembly is respectively in transmission connection with the first conveying wheel assembly 2 and the second conveying wheel assembly 3; the power output assembly drives the first conveying wheel assembly 2 and the second conveying wheel assembly 3 to rotate on the machine shell 1 through the power transmission assembly so as to realize the conveying of materials; wherein, the first conveying wheel assembly 2 and the second conveying wheel assembly 3 are at least partially arranged in a longitudinal staggered manner so as to reduce the transverse distance between the adjacent conveying wheel devices of a plurality of groups.

Further, referring to fig. 6 and 7, the first carrying wheel assembly 2 includes at least a first rotating frame 4, a first protective case 5, a short chain wheel shaft 6, a first driven sprocket shaft 7, and a first carrying wheel 8; the first rotating support 4 is provided with a first assembling part 9 and a second assembling part 10, the first protection box 5 is arranged on the first rotating support 4 and is internally provided with a first chain wheel set, one end of the short chain wheel shaft 6 is in transmission connection with the power transmission assembly, the other end of the short chain wheel shaft is arranged on the first assembling part 9 in a penetrating way and is in transmission connection with the first chain wheel set, one end of the first driven chain wheel shaft 7 is arranged on the second assembling part 10 in a penetrating way and is in transmission connection with the first chain wheel set, and the other end of the first driven chain wheel shaft 7 is fixedly connected with the first conveying wheel 8; the power output assembly drives the first conveying wheel 8 to rotate on the first rotating bracket 4 through the matching of the short chain wheel shaft 6, the first chain wheel set and the first driven chain wheel shaft 7.

Further, referring to fig. 8 and 9, the second carrying wheel assembly 3 includes at least a second rotating frame 11, a second protective case 12, a long chain wheel shaft 13, a second driven sprocket shaft 14, and a second carrying wheel 15; the second rotating support 11 is provided with a third assembling part 16 and a fourth assembling part 17, the second protection box 12 is arranged on the second rotating support 11 and is internally provided with a second chain wheel set, one end of the long chain wheel shaft 13 is in transmission connection with the power transmission assembly, the other end of the long chain wheel shaft is arranged on the third assembling part 16 in a penetrating way and is in transmission connection with the second chain wheel set, one end of a second driven chain wheel shaft 14 is arranged on the fourth assembling part 17 in a penetrating way and is in transmission connection with the second chain wheel set, and the other end of the second driven chain wheel shaft 14 is fixedly connected with the second conveying wheel 15; the power output assembly drives the second conveying wheel 15 to rotate on the second rotating bracket 11 through the matching of the long chain wheel shaft 13, the second chain wheel set and the second driven chain wheel shaft 14.

Further, referring to fig. 5, the first protection box 5 is disposed on the first rotating bracket 4 in a leaning manner, the second protection box 12 is disposed on the second rotating bracket 11 in a spacing manner, and a spacing portion 18 is formed between the first protection box 5 and the second rotating bracket 11, and the side portion of the first protection box 5 and/or the first rotating bracket 4 at least partially extends into the spacing portion 18 and is longitudinally staggered with the second protection box 12 and/or the second rotating bracket 11, so as to reduce the transverse distance between the first transporting wheel assembly 2 and the second transporting wheel assembly 3.

Or, the second protection box 12 is arranged on the second rotating bracket 11 in a leaning way, the first protection box 5 is arranged on the first rotating bracket 4 in a spacing way, a spacing part is formed between the first protection box and the first rotating bracket 4, and the side part of the second protection box 12 and/or the second rotating bracket 11 at least partially extends into the spacing part 18 and is longitudinally arranged in a staggered way with the first protection box 5 and/or the first rotating bracket 4, so as to reduce the transverse distance between the first conveying wheel assembly 2 and the second conveying wheel assembly 3.

Further, the first sprocket group is arranged inside the first protection box 5 and comprises a first connecting chain 19 and a first connecting sprocket 20, and the first driven sprocket shaft 7 is provided with a first driven shaft sprocket part 21; the short chain wheel shaft 6 is fixedly connected with the first connecting chain wheel 20, is provided with a short chain wheel part 22 and is in transmission connection with the power transmission assembly through the short chain wheel part 22; the first connecting chain 19 is respectively in transmission engagement with the first connecting chain wheel 20 and the first driven shaft chain wheel part 21.

Further, a long chain wheel axle sleeve 23 is fixedly arranged on the first assembling part 9; the short chain wheel shaft 6 is rotatably sleeved in the long chain wheel shaft sleeve 23.

Further, the second sprocket group is arranged inside the second protection box 12 and includes a second connecting chain 24 and a second connecting sprocket 25, and the second driven sprocket shaft 14 is provided with a second driven shaft sprocket part 26; the long chain wheel shaft 13 is fixedly connected with the second connecting chain wheel 25, is provided with a long shaft chain wheel part 27 and is in transmission connection with the power transmission assembly through the long shaft chain wheel part 27; the second connecting chain 24 is in transmission engagement with a second connecting chain wheel 25 and a second driven shaft chain wheel part 26 respectively.

Further, a short chain wheel axle sleeve 28 is fixedly arranged on the third assembling portion 16; the long chain wheel shaft 13 is rotatably sleeved in the short chain wheel shaft sleeve 28.

Furthermore, lubricating oil is respectively placed in the first protection box 5 and the second protection box 12 corresponding to the first chain wheel set and the second chain wheel set; the first protection box 5 and the second protection box 12 are respectively composed of a first adapter and a second adapter, and the first adapter is connected with the second adapter in a matching way to form a cavity for placing lubricating oil; wherein, rotate each other between first adaptor one end and the second adaptor one end and be connected, be provided with the elasticity piece between the first adaptor other end and the second adaptor other end, just loosen each other or locking cooperation through the elasticity piece.

Further, referring to fig. 1-5, the power output assembly at least includes a motor 29, a turbine shaft 30 and a driving tooth 31, the turbine shaft 30 is in transmission connection with the motor 29, and the driving tooth 31 is fixedly arranged on the turbine shaft 30; the power transmission assembly at least comprises a main transition shaft 32, a main transmission gear 33, an auxiliary transmission gear 34, a transition transmission gear group 35 and a transition transmission chain 36; the main transition shaft 32 is fixedly arranged in the machine shell 1, the main transmission teeth 33 are in transmission engagement with the driving teeth 31 and are in transmission connection with the auxiliary transmission teeth 34, the number of the transition transmission tooth groups 35 and the number of the transition transmission chains 36 corresponding to the number of the conveying wheel devices are mutually arranged, the auxiliary transmission teeth 34 are in transmission engagement with the transition transmission tooth groups 35, the transition transmission tooth groups 35 are in transmission engagement with the short chain wheel shaft 6 of the first conveying wheel assembly 2 or the long chain wheel shaft 13 of the second conveying wheel assembly 3, and the transition transmission chains 36 are in transmission engagement with the short chain wheel shaft 6 and the long chain wheel shaft 13 respectively.

The motor 29 drives the turbine shaft 30 to rotate in the casing 1, and drives the main transmission teeth 33 and the auxiliary transmission teeth 34 to rotate on the main transition shaft 32 through the driving teeth 31 when rotating, and the main transmission teeth 33 and the auxiliary transmission teeth 34 respectively drive the plurality of sets of conveying wheel devices to rotate on the casing 1 through the meshing of the transition transmission teeth 35 and the transition transmission chain 36 when rotating, so as to realize the conveying of materials.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are intended to illustrate the principles of the invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention, and the scope of the invention is to be protected. The scope of the invention is defined by the appended claims and equivalents thereof.

Also, the drawings are for illustrative purposes only and are presented as schematic illustrations only, not as physical illustrations, and are not to be construed as limiting the present patent; for a better understanding of the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.

Moreover, like or similar reference numerals in the drawings of the embodiments of the present invention correspond to like or similar parts; in the description of the present invention, it should be understood that, if there are any terms such as "upper", "lower", "left", "right", "vertical", "horizontal", "longitudinal", "top", "bottom", "inner", "outer", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, the description is for convenience and simplicity, and it is not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, the terms describing the positional relationships in the drawings are used for illustrative purposes only and are not to be construed as limiting the present patent.

Claims

1. The utility model provides a wheel structure is transported to short distance of material conveying equipment, includes power take off assembly, casing (1), power transmission assembly and transports a round device, its characterized in that: the power output assembly is arranged on the machine shell (1), the power transmission assembly is arranged in the machine shell (1) and is in transmission connection with the power output assembly, at least two conveying wheel devices are in one group and are provided with a plurality of groups, the plurality of groups of conveying wheel devices are transversely arranged in the machine shell (1), and the at least two conveying wheel devices in one group comprise a first conveying wheel assembly (2) and a second conveying wheel assembly (3); the power transmission assembly is respectively in transmission connection with the first conveying wheel assembly (2) and the second conveying wheel assembly (3); the power output assembly drives the first conveying wheel assembly (2) and the second conveying wheel assembly (3) to rotate on the machine shell (1) through the power transmission assembly so as to realize the conveying of materials; wherein, the first conveying wheel assembly (2) and the second conveying wheel assembly (3) are at least partially arranged in a longitudinal staggered manner so as to reduce the transverse distance between the adjacent conveying wheel devices of a plurality of groups.

2. A short-distance transport wheel structure of a material transport apparatus according to claim 1, characterized in that: the first conveying wheel assembly (2) at least comprises a first rotating bracket (4), a first protection box (5), a short chain wheel shaft (6), a first driven chain wheel shaft (7) and a first conveying wheel (8); the first rotating support (4) is provided with a first assembling part (9) and a second assembling part (10), the first protection box (5) is arranged on the first rotating support (4) and internally provided with a first chain wheel set, one end of a short chain wheel shaft (6) is in transmission connection with the power transmission assembly, the other end of the short chain wheel shaft is arranged on the first assembling part (9) in a penetrating manner and is in transmission connection with the first chain wheel set, one end of a first driven chain wheel shaft (7) is arranged on the second assembling part (10) in a penetrating manner and is in transmission connection with the first chain wheel set, and the other end of the first driven chain wheel shaft (7) is fixedly connected with the first conveying wheel (8); the power output assembly drives the first conveying wheel (8) to rotate on the first rotating bracket (4) through the matching of the short chain wheel shaft (6), the first chain wheel set and the first driven chain wheel shaft (7).

3. A short-distance transport wheel structure of a material transport apparatus according to claim 2, characterized in that: the second conveying wheel assembly (3) at least comprises a second rotating bracket (11), a second protection box (12), a long chain wheel shaft (13), a second driven chain wheel shaft (14) and a second conveying wheel (15); the second rotating support (11) is provided with a third assembling part (16) and a fourth assembling part (17), the second protection box (12) is arranged on the second rotating support (11) and internally provided with a second chain wheel set, one end of the long chain wheel shaft (13) is in transmission connection with the power transmission assembly, the other end of the long chain wheel shaft is arranged on the third assembling part (16) in a penetrating way and is in transmission connection with the second chain wheel set, one end of a second driven chain wheel shaft (14) is arranged on the fourth assembling part (17) in a penetrating way and is in transmission connection with the second chain wheel set, and the other end of the second driven chain wheel shaft (14) is fixedly connected with the second conveying wheel (15); the power output assembly drives a second conveying wheel (15) to rotate on a second rotating bracket (11) through the matching of a long chain wheel shaft (13), a second chain wheel group and a second driven chain wheel shaft (14).

4. A short-distance transport wheel structure of a material transport apparatus according to claim 3, characterized in that: the first protection box (5) is arranged on the first rotating bracket (4) in a leaning mode, the second protection box (12) is arranged on the second rotating bracket (11) in a spacing mode, a spacing part (18) is formed between the first protection box and the second rotating bracket, at least part of the side part of the first protection box (5) and/or the first rotating bracket (4) extends into the spacing part (18), and the side part of the first protection box and/or the first rotating bracket (4) is longitudinally arranged in a staggered mode with the second protection box (12) and/or the second rotating bracket (11), so that the transverse distance between the first conveying wheel assembly (2) and the second conveying wheel assembly (3) is reduced;

or the second protection box (12) is arranged on the second rotating bracket (11) in a depending manner, the first protection box (5) is arranged on the first rotating bracket (4) in a spacing manner, a spacing part is formed between the first protection box and the first rotating bracket, and the side parts of the second protection box (12) and/or the second rotating bracket (11) at least partially extend into the spacing part (18) and are longitudinally arranged in a staggered manner with the first protection box (5) and/or the first rotating bracket (4) so as to reduce the transverse distance between the first conveying wheel assembly (2) and the second conveying wheel assembly (3).

5. A short-distance transport wheel structure of a material transport apparatus according to claim 2, characterized in that: the first chain wheel group is arranged in the first protection box (5) and comprises a first connecting chain (19) and a first connecting chain wheel (20), and a first driven chain wheel part (21) is arranged on the first driven chain wheel shaft (7); the short chain wheel shaft (6) is fixedly connected with the first connecting chain wheel (20), is provided with a short chain wheel part (22), and is in transmission connection with the power transmission assembly through the short chain wheel part (22); the first connecting chain (19) is in transmission engagement with the first connecting chain wheel (20) and the first driven shaft chain wheel part (21) respectively.

6. A short-distance transport wheel structure of a material transport apparatus according to claim 5, characterized in that: a long chain wheel shaft sleeve (23) is also fixedly arranged on the first assembling part (9); the short chain wheel shaft (6) is rotatably sleeved in the long chain wheel shaft sleeve (23).

7. A short-distance transport wheel structure of a material transport apparatus according to claim 3, characterized in that: the second chain wheel set is arranged in a second protection box (12) and comprises a second connecting chain (24) and a second connecting chain wheel (25), and a second driven chain wheel part (26) is arranged on the second driven chain wheel shaft (14); the long chain wheel shaft (13) is fixedly connected with the second connecting chain wheel (25), is provided with a long shaft chain wheel part (27), and is in transmission connection with the power transmission assembly through the long shaft chain wheel part (27); the second connecting chain (24) is in transmission engagement with the second connecting chain wheel (25) and the second driven shaft chain wheel part (26) respectively.

8. A short-distance transport wheel structure of a material transport apparatus according to claim 7, characterized in that: a short chain wheel axle sleeve (28) is fixedly arranged on the third assembling part (16); the long-chain wheel shaft (13) is rotatably sleeved in the short-chain wheel shaft sleeve (28).

9. A short-distance transport wheel structure of a material transport apparatus according to claim 4, characterized in that: lubricating oil is respectively placed in the first protection box (5) and the second protection box (12) corresponding to the first chain wheel set and the second chain wheel set; the first protection box (5) and the second protection box (12) are respectively composed of a first adapter and a second adapter, and the first adapter and the second adapter are connected in a matched mode and form a cavity for containing lubricating oil; wherein, rotate each other between first adaptor one end and the second adaptor one end and be connected, be provided with the elasticity piece between the first adaptor other end and the second adaptor other end, just loosen each other or locking cooperation through the elasticity piece.

10. A short distance transport wheel structure of material transport apparatus according to any one of claims 1 to 9, wherein: the power output assembly at least comprises a motor (29), a turbine shaft (30) and a driving tooth (31), the turbine shaft (30) is in transmission connection with the motor (29), and the driving tooth (31) is fixedly arranged on the turbine shaft (30); the power transmission assembly at least comprises a main transition shaft (32), a main transmission gear (33), an auxiliary transmission gear (34), a transition transmission gear group (35) and a transition transmission chain (36); the main transition shaft (32) is fixedly arranged in the machine shell (1), the main transmission teeth (33) are in transmission meshing with the driving teeth (31) and are in transmission connection with the auxiliary transmission teeth (34), the number of the transition transmission tooth groups (35) and the number of the transition transmission chains (36) are corresponding to that of the conveying wheel devices, the auxiliary transmission teeth (34) are in transmission meshing with the transition transmission tooth groups (35), the transition transmission tooth groups (35) are in transmission meshing with the short-chain wheel axle (6) of the first conveying wheel assembly (2) or the long-chain wheel axle (13) of the second conveying wheel assembly (3), and the transition transmission chains (36) are in transmission meshing with the short-chain wheel axle (6) and the long-chain wheel axle (13) respectively;

the motor (29) drives the turbine shaft (30) to rotate in the shell (1), and drives the main transmission teeth (33) and the auxiliary transmission teeth (34) to rotate on the main transition shaft (32) through the driving teeth (31) during rotation, and the main transmission teeth (33) and the auxiliary transmission teeth (34) respectively drive a plurality of groups of conveying wheel devices to rotate on the shell (1) through meshing of the transition transmission tooth groups (35) and the transition transmission chain (36) during rotation so as to realize conveying of materials.