Fixed-connection electrical roller and conveyor system

Abstract

A fixed-connection electrical roller and a conveyor system. The fixed-connection electrical roller comprises a roller body (100), a roller motor (200), a speed reducer (300), a fixed-connection member (400), a mounting seat (500), and a spindle (600). The roller motor (200) is in fit connection with the roller body (100), and is arranged inside the roller body (100); the speed reducer (300) is arranged in the roller body (100); an input end of the speed reducer (300) is connected to an output end of the roller motor (200); and the speed reducer (300) lowers a high rotational speed outputted by the roller motor (200) to a low rotational speed. The fixed-connection member (400) is arranged in the roller body, is fixedly connected to an output end of the speed reducer (300), and is fixedly connected to the roller body (100). The roller motor (200) and the speed reducer (300) are fixedly connected to the roller body (100) by means of the fixed-connection member (400), so that the roller motor (200) can drive the roller body (100) to rotate, and it can be ensured that the roller motor (200), the speed reducer (300), and the roller body (100) would not move relative each other, thereby stably conveying goods.

Description

Solidly connected electric roller and conveying system

[0001] Cross-reference to Related Applications

[0002] The present application claims priority from the Chinese patent application No. 202421995019X titled "Solidly connected electric roller and conveying system" filed on August 16, 2024 with the China Patent Office, the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of logistics equipment, and in particular to a solidly connected electric roller and conveying system. BACKGROUND

[0004] An electric roller is a component applied to an industrial automatic conveying system, which can provide continuous or intermittent power conveying. The electric roller has been widely applied in modern logistics, manufacturing and other fields due to its compact structure, simple installation, stable operation and energy-saving and environment-friendly characteristics, for example, applied in a roller conveying line.

[0005] However, when the weight of the goods conveyed by the electric roller is large, the relative movement between the roller motor, the speed reducer and the cylinder body of the electric roller is prone to occur, resulting in that the goods cannot be normally conveyed.

[0006] SUMMARY

[0007] The present application provides a solidly connected electric roller and conveying system, which can realize normal conveying of goods.

[0008] In a first aspect, the present application provides a solidly connected electric roller, comprising:

[0009] a cylinder body;

[0010] a roller motor arranged in the cylinder body;

[0011] a speed reducer arranged in the cylinder body, the roller motor being connected with the speed reducer;

[0012] a fixed connecting piece connected with an output end of the speed reducer, and the fixed connecting piece being fixedly connected with the cylinder body;

[0013] a mounting seat arranged in the cylinder body, the mounting seat being fixedly connected with the roller motor;

[0014] The roller motor drives the cylinder body to rotate through the speed reducer and the fixed connecting piece.

[0015] In a feasible implementation manner, the mounting seat is provided with a placing cavity, and a control piece is arranged in the placing cavity, the control piece being electrically connected with the roller motor.

[0016] In an implementation, at least one sprocket is arranged at one end of the barrel, and the at least one sprocket is fixedly connected to the barrel.

[0017] In an implementation, at least one sprocket is arranged at each end of the fixedly connected electric barrel, and the at least one sprocket is fixedly connected to the barrel.

[0018] In an implementation, the fixedly connected electric barrel further comprises a mandrel.

[0019] One end of the mandrel arranged at the side of the barrel motor is fixedly connected to the mounting seat, and the other end of the mandrel extends from the inside of the barrel to the outside of the barrel.

[0020] In an implementation, the mandrel is provided with a through hole in communication with the placement cavity.

[0021] In an implementation, the fixed connection between the fixed connection member and the barrel is achieved by welding.

[0022] and / or;

[0023] The fixed connection between the fixed connection member and the barrel is achieved by fasteners.

[0024] and / or;

[0025] The fixed connection between the fixed connection member and the barrel is achieved by adhesion.

[0026] and / or;

[0027] The fixed connection between the fixed connection member and the barrel is achieved by clamping connection.

[0028] In an implementation, the speed reducer is configured as a planetary speed reducer.

[0029] In an implementation, the speed reducer comprises a sun gear, a planet gear, a planet carrier, and a speed reducer housing.

[0030] The housing of the barrel motor is fixedly connected to the speed reducer housing, the planet carrier is in cooperative connection with the speed reducer housing, and the sun gear is in cooperative connection with the planet carrier.

[0031] The rotor of the barrel motor is connected to the sun gear, the sun gear is in cooperative connection with the planet gear, the planet gear is arranged on the planet carrier, and the planet carrier is connected to the connecting member.

[0032] In an implementation, the fixedly connected electric barrel further comprises a driving end head assembly, the driving end head assembly is connected to the barrel, and the driving end head assembly is arranged at the end of the barrel away from the barrel motor.

[0033] In an implementation, the driving end head assembly comprises a sprocket end head, a rotating shaft, and an end head bearing.

[0034] The chain wheel end is fixedly connected with the end of the cylinder, and the rotating shaft is rotatably connected with the chain wheel end through an end bearing.

[0035] In an implementation, the fixed connection type electric roller further comprises a non-driving end assembly, the non-driving end assembly is connected with the cylinder, and the non-driving end assembly is arranged at one end of the cylinder close to the roller motor.

[0036] In an implementation, the non-driving end assembly comprises an end cover and an end cover bearing, the end cover is fixedly connected with the end of the cylinder, and the mandrel is rotatably connected with the end cover through the end cover bearing.

[0037] In an implementation, the end cover is clamped on the end of the cylinder, or the end cover is bolted on the end of the cylinder, or the end cover is welded on the end of the cylinder.

[0038] In an implementation, the radial maximum dimensions of the mounting seat, the roller motor and the speed reducer are all smaller than the diameter of the cylinder, and gaps are formed between the mounting seat, the roller motor, the speed reducer and the inner wall of the cylinder.

[0039] In an implementation, the roller motor comprises a shell, a permanent magnet and a rotor, one end of the shell is fixedly connected with the mounting seat, and the other end is connected with the speed reducer; the permanent magnet is arranged on the inner side of the shell, and the rotor is arranged in the shell, and the rotor is connected with the input end of the speed reducer. In the second aspect, the embodiments of the present application provide a conveying system comprising the fixed connection type electric roller of the first aspect.

[0040] In the first aspect, the embodiments of the present application provide a fixed connection type electric roller, comprising a cylinder, a roller motor, a speed reducer, a connecting piece, a mounting seat and a mandrel. The roller motor is connected with the cylinder in cooperation, and the roller motor is arranged in the cylinder; the speed reducer is arranged in the cylinder, the input end of the speed reducer is connected with the output end of the roller motor, and the speed reducer reduces the high rotating speed output by the roller motor to a low rotating speed. The connecting piece is arranged in the cylinder, the connecting piece is fixedly connected with the output end of the speed reducer, and the connecting piece is fixedly connected with the cylinder. The roller motor and the speed reducer are fixedly connected with the cylinder through the connecting piece, so that the roller motor can drive the cylinder to rotate, and the relative movement between the roller motor, the speed reducer and the cylinder can be prevented, thereby stabilizing the conveying of goods.

[0041] In the second aspect, the embodiments of the present application provide a conveying system comprising the fixed connection type electric roller of the first aspect. Since the conveying system comprises the fixed connection type electric roller in any of the above technical solutions, it has all the beneficial effects of the fixed connection type electric roller in any of the above technical solutions, which will not be repeated here. BRIEF DESCRIPTION OF DRAWINGS

[0042] The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiments of the application and together with the description serve to explain the application. The detailed description of the application refers to the accompanying drawings in which:

[0043] In the drawings:

[0044] Fig. 1 is a structural schematic diagram of a solid connection type electric roller provided by an embodiment of the application;

[0045] Fig. 2 is a partial sectional view of the solid connection type electric roller provided by an embodiment of the application;

[0046] Fig. 3 is an enlarged view of the section in Fig. 2;

[0047] Fig. 4 is a structural schematic diagram of a solid connection type electric roller provided by an embodiment of the application.

[0048] Legend: 100 - barrel; 200 - roller motor; 300 - speed reducer; 400 - connecting piece; 500 - mounting seat; 600 - mandrel; 700 - end cover; 800 - end cover bearing; 900 - end assembly; 210 - housing; 220 - rotor; 310 - sun gear; 320 - planet gear; 330 - planet carrier; 340 - speed reducer housing; 510 - placement cavity; 610 - through hole; 910 - sprocket end; 920 - rotating shaft; 930 - end bearing; 911 - sprocket. DETAILED DESCRIPTION

[0049] In order to enable persons skilled in the art to better understand the technical solutions in the application, the technical solutions in the embodiments of the application will be clearly and completely described below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are only some of the embodiments of the application, but not all the embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by persons skilled in the art without creative work should fall within the protection scope of the application.

[0050] In the description of the embodiments of the application, the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include at least one of the features. In the description of the application, the meaning of "multiple" is at least two, for example, two, three, etc., unless otherwise specifically limited.

[0051] In this application, unless specifically defined otherwise, the terms "mount", "connected", "connection", "fixed", and the like, should be construed broadly and can be either fixed connections or detachable connections, or integrally formed; can be mechanical connections; can be direct connections or indirect connections through intermediaries; can be the internal communication of two elements or the interaction relationship between two elements, unless specifically defined otherwise. The specific meaning of the above terms in this application can be understood according to the specific circumstances by those of ordinary skill in the art.

[0052] In this application, unless specifically defined otherwise, the first feature is "on" or "under" the second feature, which can be direct contact between the first and second features, or indirect contact between the first and second features through intermediaries. Moreover, the first feature "above", "over" and "on" the second feature can be that the first feature is directly above or obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "under" and "under" the second feature can be that the first feature is directly below or obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0053] The electric roller is a component applied to an industrial automatic conveying system, which can provide continuous or intermittent power conveying. The electric roller is widely used in the fields of modern logistics, manufacturing, etc. due to its compact structure, simple installation, stable operation and energy-saving and environment-friendly characteristics, for example, applied in a roller conveying line.

[0054] In the related art, the electric roller includes a roller motor, a speed reducer and a cylinder body. The roller motor is connected with an input shaft of the speed reducer. The roller motor and the speed reducer are sleeved in the cylinder body. An output shaft of the speed reducer is fixedly connected with another side electric roller mounting frame. After the roller motor is started, the shell of the roller motor and the shell of the speed reducer drive the cylinder body to rotate.

[0055] However, when the electric roller conveys heavy goods, the roller motor, the speed reducer and the cylinder body are prone to relative movement, which causes the goods to be unable to be normally conveyed.

[0056] In order to solve the above problems, the electric roller and the conveying system provided by the embodiments of the present application are provided. The scheme provided by the embodiments of the present application will be described in detail below in combination with the drawings of the specification.

[0057] FIG. 1 is a structural schematic view of a fixed connection type electric roller provided by the embodiments of the present application; FIG. 2 is a partial sectional view of the fixed connection type electric roller provided by the embodiments of the present application; and FIG. 3 is an enlarged view of the section in FIG. 2.

[0058] In a first aspect, referring to FIGS. 1-3, embodiments of the present application provide a fixed connection type electric roller, comprising a roller body 100, a roller motor 200, a speed reducer 300, a fixed connection piece 400 and a mounting seat 500.

[0059] The roller body 100 is a steel cylinder with a through hole in the middle. The roller motor 200, the speed reducer 300 and the fixed connection piece 400 are arranged inside the roller body 100. The output end of the roller motor 200 is connected to the input end of the speed reducer 300, and the speed reducer 300 converts the high speed output by the roller motor 200 into low speed. The fixed connection piece 400 is fixedly connected to the output end of the speed reducer 300, and the fixed connection piece 400 is fixedly connected to the roller body 100. That is to say, the roller motor 200 and the speed reducer 300 are fixedly connected to the roller body 100 through the fixed connection piece 400, so that the roller motor 200 can drive the roller body 100 to rotate. Since the fixed connection piece 400 is fixedly connected to the roller body 100, it can ensure that the roller motor 200, the speed reducer 300 and the roller body 100 do not move relative to each other, thereby stably conveying goods.

[0060] Optionally, the fixed connection piece 400 and the roller body 100 can be connected by welding, or a fastener can also be used for fixed connection.

[0061] In addition, the mounting seat 500 is arranged inside the roller body 100 and is fixedly connected to the end of the roller motor 200 away from the fixed connection piece 400.

[0062] The fixed connection type electric roller further comprises a mandrel 600 arranged on the roller motor side of the roller body 100, one end of which is fixedly connected to the mounting seat 500, and the other end of the mandrel 600 extends from the inside of the roller body 100 to the outside of the roller body 100 and is connected to a roller mounting bracket. The mandrel 600 and the mounting seat 500 are configured to fix the roller motor 200 on the roller mounting bracket so that it can drive the roller body 100 to rotate.

[0063] That is to say, one end of the roller motor 200 can be fixed to the roller mounting bracket through the mounting seat 500 and the mandrel 600, and the output end of the roller motor 200 is connected to the roller body 100 through the speed reducer 300 and the fixed connection piece 400. The output end of the roller motor 200 drives the roller body 100 to rotate during rotation.

[0064] Optionally, the fixed connection piece 400 can be a connecting disc which is inserted into the roller body 100 and can be welded to the roller body 100 to ensure stable connection.

[0065] In addition, the connecting disc can be fixed in the barrel by a fastener, or by adhesion, or by a clamping connection. It can be understood that there are other ways to fix the fastener in the barrel in the related art, which are not listed here.

[0066] As shown in FIG. 2, in some other examples, the mounting seat 500 is a hollow cylinder with a placement cavity 510, which is arranged in the barrel 100. The placement cavity 510 is provided with a control element, such as a control board, a motor encoder, or a Hall plate, for driving the roller motor 200 to operate. The control element can be electrically connected to the roller motor 200 by wires. Since the control element is installed in the placement cavity 510 of the mounting seat 500, it is not necessary to be separately arranged, thereby reducing the overall installation space of the fixed electric roller, and avoiding the influence of complex wiring around the fixed electric roller on the operation of the fixed electric roller.

[0067] Continuing to refer to FIGS. 2 and 3, optionally, the mandrel 600 is provided with a through hole 610 that is in communication with the placement cavity 510. The power supply line and the control line can extend into the barrel 100 through the through hole 610 and be electrically connected to the control element and the roller motor 200 located inside the barrel 100.

[0068] In addition, in order to ensure that the barrel 100 can move relative to the circumferential direction of the mounting seat 500, the roller motor 200, and the speed reducer 300, the maximum radial dimension of the mounting seat 500, the roller motor 200, and the speed reducer 300 is less than the diameter of the barrel 100, and there is a certain gap between the mounting seat 500, the roller motor 200, the speed reducer 300, and the inner wall of the barrel 100.

[0069] As shown in FIGS. 2 and 3, in some embodiments of the present application, the roller motor 200 includes a housing 210, a permanent magnet (not shown), and a rotor 220, one end of the housing 210 is fixedly connected with the mounting seat 500, and the other end is connected with the speed reducer 300; the permanent magnet is arranged inside the housing 210, and the rotor 220 is arranged inside the housing 210 and connected with the input end of the speed reducer 300.

[0070] Optionally, the speed reducer 300 can be configured as a planetary speed reducer. Optionally, the speed reducer 300 includes a sun gear 310, a planet gear 320, a planet carrier 330, and a speed reducer housing 340; the housing 210 of the roller motor 200 is fixedly connected with the speed reducer housing 340, the planet carrier 330 is connected with the speed reducer housing 340, the sun gear 310 is connected with the planet gear 320, and the planet gear 320 is arranged on the planet carrier 330; the rotor 220 is connected with the sun gear 310, and the planet carrier 330 is connected with the fixed connecting piece 400.

[0071] With reference to FIGS. 2 and 3, the fixed electric roller further comprises a non-driving end assembly connected with the barrel, and the non-driving end assembly is arranged at one end of the barrel close to the roller motor. Optionally, the non-driving end assembly comprises an end cover 700 and an end cover bearing 800, the end cover 700 is fixedly connected with the end of the barrel 100, and the mandrel 600 is rotatably connected with the end cover 700 through the end cover bearing 800. Optionally, the end cover bearing 800 is arranged in the end cover 700, and the mandrel 600 is arranged in the end cover bearing 800. For example, the end cover 700 can be clamped, bolted or welded on the end of the barrel 100. The end cover bearing 800 is at least one, which is arranged in the end cover 700, and the mandrel 600 is arranged in the end cover bearing 800.

[0072] Correspondingly, the fixed electric roller further comprises a driving end assembly 900 connected with the barrel, and the driving end assembly is arranged at one end of the barrel away from the roller motor. The driving end assembly 900 is arranged on the side opposite to the roller motor 200. Optionally, the driving end assembly 900 comprises a sprocket end 910, a rotating shaft 920 and an end bearing 930. The sprocket end 910 is arranged at one end of the barrel 100 away from the roller motor 200, at least two end bearings 930 are arranged in the sprocket end 910, and the rotating shaft 920 is arranged in the at least two end bearings 930. Optionally, the two end bearings 930 are respectively located at the two ends of the rotating shaft 920.

[0073] In some examples, the sprocket end 910 is provided with a sprocket 911. When the fixed electric roller is arranged in a conveying line, the fixed electric roller can be used as a power roller, and the sprockets 911 of the adjacent fixed electric rollers are connected with each other by a chain.

[0074] FIG. 4 is a structural schematic diagram of the fixed electric roller according to an embodiment of the present application.

[0075] With reference to FIG. 4, in some examples, the fixed electric roller comprises at least one sprocket 911 fixedly connected with the barrel 100. For example, one sprocket 911 is arranged at one end of the fixed electric roller, or two sprockets 911 are arranged at one end of the fixed electric roller in parallel. Of course, the number of the sprockets 911 arranged at one end of the barrel 100 can be two, three, four, five or more, which is not limited herein. That is, two, three, four, five or more sprockets 911 are arranged at one end of the barrel 100 in parallel.

[0076] In some other examples, at least one sprocket 911 is arranged at each end of the fixed electric roller, and the at least one sprocket 911 is fixedly connected to the roller body 100. For example, one sprocket 911 is arranged at each end of the fixed electric roller, or two sprockets 911 are arranged side by side. Alternatively, at least one sprocket 911 is arranged at each end of the roller body 100. The number of sprockets 911 arranged at each end of the roller body 100 can be one, two, three, four, etc., which is not limited herein. The plurality of sprockets 911 arranged at each end of the roller body 100 are arranged side by side. Alternatively, one or two sprockets 911 are arranged on the sprocket end head 910 at one end of the roller body 100 where the driving end head assembly 900 is arranged, and one or two sprockets 911 are fixedly arranged on the roller body 100 at the end of the roller body 100 away from the driving end head 900.

[0077] When the fixed electric roller is used as a power roller, the sprockets 911 at both ends of the fixed electric roller are respectively connected to the sprockets at both ends of the non-power roller, so that the non-power roller is uniformly stressed at both ends, thereby rotating more stably.

[0078] In a second aspect, the embodiments of the present application provide a conveying system comprising the fixed electric roller of the first aspect. Since the conveying system comprises the fixed electric roller of any of the above technical solutions, it has all the beneficial effects of the fixed electric roller of any of the above technical solutions, which will not be repeated herein.

[0079] It is easy to understand that, based on the several embodiments provided by the present application, the embodiments of the present application can be combined, split, recombined, etc. to obtain other embodiments, which do not exceed the protection scope of the present application.

[0080] The above specific embodiments have further detailed the purposes, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above is only a specific embodiment of the present application, and is not used to limit the protection scope of the embodiments of the present application. Any modification, equivalent replacement, improvement, etc. made on the basis of the technical solutions of the embodiments of the present application shall be included in the protection scope of the embodiments of the present application. Industrial applicability

[0081] In summary, the embodiments of the present application provide a fixed electric roller and a conveying system. The fixed electric roller comprises a roller body, a roller motor, a speed reducer, a fixed connecting piece and a mounting seat. The roller motor and the speed reducer are fixedly connected to the roller body through the fixed connecting piece, so that the roller motor can drive the roller body to rotate, and the relative movement between the roller motor, the speed reducer and the roller body can be ensured, thereby stably conveying goods.

Claims

1. A fixed-mount electric roller, characterized in that, The utility model relates to a fixed connection type electric roller, which comprises the following parts: a barrel (100); a roller motor (200) arranged in the barrel (100); a speed reducer (300) arranged in the barrel (100), wherein the roller motor (200) is connected with the speed reducer (300); a fixed connecting piece (400) connected with the output end of the speed reducer (300), and the fixed connecting piece (400) is fixedly connected with the barrel (100); a mounting seat (500) arranged in the barrel (100), wherein the mounting seat (500) is fixedly connected with the roller motor (200); the roller motor (200) drives the barrel (100) to rotate through the speed reducer (300) and the fixed connecting piece (400).

2. The solid mounted bearing roller as set forth in claim 1, wherein, The mounting seat (500) is provided with a placing cavity (510), and a control element is arranged in the placing cavity (510), wherein the control element is electrically connected with the roller motor (200).

3. The solid fastener of claim 1 or 2, wherein, One end of the barrel (100) is provided with at least one sprocket (600), and the at least one sprocket (600) is fixedly connected with the barrel (100).

4. The solid fastener of any of claims 1-3, wherein, Both ends of the barrel (100) are provided with at least one sprocket (600), and the at least one sprocket (600) is fixedly connected with the barrel (100).

5. The solid electrical roller as claimed in any one of claims 2 to 4, wherein, The fixed connection type electric roller further comprises a mandrel (600); one end of the mandrel (600) arranged on the side of the roller motor (200) is fixedly connected with the mounting seat (500), and the other end of the mandrel (600) extends from the inside of the barrel (100) to the outside of the barrel (100).

6. The solid mounted bearing roller as set forth in claim 5, wherein, The mandrel (600) is provided with a through hole (610), and the through hole (610) is in communication with the placing cavity (510).

7. The solid electrical roller of any one of claims 1-6, wherein, The fixed connecting piece (400) and the barrel (100) are fixedly connected through welding; and / or; the fixed connecting piece (400) and the barrel (100) are fixedly connected through fasteners; and / or; the fixed connecting piece (400) and the barrel (100) are fixedly connected through adhesion; and / or; the fixed connecting piece (400) and the barrel (100) are fixedly connected through clamping connection.

8. The solid electric roller as claimed in any one of claims 1 to 7, characterized in that The speed reducer (300) is configured as a planetary speed reducer (300).

9. The solid mounted bearing roller of claim 8, wherein, The speed reducer (300) comprises a sun gear (310), a planet gear (320), a planet carrier (330) and a speed reducer housing (340); the shell of the roller motor (200) is fixedly connected with the speed reducer housing (340), the planet carrier (330) is connected with the speed reducer housing (340) in a matched mode, and the sun gear (310) is connected with the planet carrier (330) in a matched mode; the rotor of the roller motor (200) is connected with the sun gear (310), the sun gear (310) is connected with the planet gear (320) in a matched mode, the planet gear (320) is arranged on the planet carrier (330), and the planet carrier (330) is connected with the fixed connecting piece (400).

10. The solid electrical roller of any one of claims 1-9, wherein, The fixed connection type electric roller further comprises a driving end head assembly (900) connected with the barrel (100), and the driving end head assembly (900) is arranged at one end of the barrel (100) away from the roller motor (200).

11. The solid mounted bearing roller of claim 10, wherein, The driving end head assembly (900) comprises a sprocket end head (910), a rotating shaft (920) and an end head bearing (930). The sprocket end head (910) is fixedly connected with the end of the barrel (100), and the rotating shaft (920) is rotatably connected with the sprocket end head (910) through the end head bearing (930).

12. The solid mounted bearing of claim 5 or 6, wherein, The fixed connection type electric roller further comprises a non-driving end head assembly connected with the barrel (100), and the non-driving end head assembly is arranged at one end of the barrel (100) close to the roller motor (200).

13. The solid mounted bearing roller of claim 12, wherein, The non-driving end head assembly comprises an end cover (700) and an end cover bearing (800), the end cover (700) is fixedly connected with the end of the barrel (100), and the mandrel (600) is rotatably connected with the end cover (700) through the end cover bearing (800).

14. The solid electric roller of claim 13, wherein, The end cover (700) is clamped on the end of the barrel (100), or the end cover (700) is bolted on the end of the barrel (100), or the end cover (700) is welded on the end of the barrel (100).

15. The solid electric roller of any of claims 1-14, wherein, The radial maximum dimensions of the mounting seat (500), the roller motor (200) and the speed reducer (300) are all smaller than the diameter of the barrel (100), and the mounting seat (500), the roller motor (200) and the speed reducer (300) all have gaps with the inner wall of the barrel (100).

16. The solid electric roller of any of claims 1-15, wherein, The roller motor (200) comprises a shell (210), a permanent magnet and a rotor (220), one end of the shell (210) is fixedly connected with the mounting seat (500), and the other end is connected with the speed reducer (300); the permanent magnet is arranged on the inner side of the shell (210), the rotor (220) is arranged in the shell (210), and the rotor (220) is connected with the input end of the speed reducer (300).

17. A delivery system characterized by, The fixed connection type electric roller comprises the fixed connection type electric roller according to any one of claims 1-16. The fixed connection type electric roller comprises the fixed connection type electric roller according to any one of claims 1-16.

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