A motorized roller with a soft connection structure

Abstract

The utility model discloses an electric roller structure, belongs to the technical field of electric rollers, and specifically relates to an electric roller adopting a soft connection structure, comprising: a DC brushless motor, an outer tube, a front end connection component and a rear end connection component; the DC brushless motor, the front end connection component and the rear end connection component are all installed in the outer tube; the front end connection component is connected to the input end of the DC brushless motor to drive the DC brushless motor to rotate, and the rear end connection component is connected to the output end of the DC brushless motor and to the outer tube to follow the DC brushless motor to rotate and drive the outer tube to rotate; the electric roller structure of the present invention can offset the deviation in coaxiality, and the polyurethane can reduce the impact during start-stop and reduce the noise during operation.

Description

Technical Field

[0001] The utility model discloses a motorized roller structure, belongs to the technical field of motorized rollers, and specifically relates to a motorized roller adopting a soft connection structure. Background Art

[0002] A motorized roller is a conveying device that is electrically driven and is usually used for conveying and handling materials. It consists of an electric drive system, a roller assembly, and a supporting structure. It is mainly used to transport materials from one location to another in production lines, storage facilities, logistics centers, etc. The electric drive system is usually driven by an electric motor, which transmits power to the roller through a belt drive or chain drive to make it rotate. The rollers of the roller assembly are usually made of metal or plastic, and may have special coatings or surface treatments on the surface to increase friction or prevent material slippage.

[0003] The electric roller structure in the prior art is that the front and rear ends of the motor and the tube are hard-connected. Assembly errors, processing errors, and straightness and roundness tolerances of the outer tube will lead to coaxiality deviations, thereby increasing the motor load, affecting the load-bearing capacity, current, heat generation, and life. Utility Model Content

[0004] Purpose of the utility model: to provide a motorized roller with a soft connection structure to solve the above-mentioned problems.

[0005] Technical solution: A motorized roller adopting a soft connection structure, the motorized roller comprising: a brushless DC motor, an outer tube, a front connection component and a rear connection component;

[0006] In a further embodiment, the DC brushless motor, the front-end connecting component and the rear-end connecting component are all installed in the outer tube; the front-end connecting component is connected to the input end of the DC brushless motor to drive the DC brushless motor to rotate, and the rear-end connecting component is connected to the output end of the DC brushless motor and to the outer tube to follow the rotation of the DC brushless motor and drive the outer tube to rotate.

[0007] In a further embodiment, the front end connection assembly includes: a motor output shaft, an end cover, a first buffer connection piece, a tail shaft connection piece, and a motor connection piece;

[0008] The motor connector is fixedly connected to one end of the brushless DC motor; the tail shaft connector is cooperatively installed in the first buffer connector; the end cover is fixedly connected to one end of the outer tube; the middle part of the motor output shaft is rotatably connected to the end cover through a ball bearing, and the end of the motor output shaft is sleeved with the first buffer connector.

[0009] In a further embodiment, a wire hole is opened at the center of the motor shaft, and the connecting cable of the brushless DC motor flows out through the wire hole.

[0010] In a further embodiment, the rear end connection assembly includes: an output shaft connection member, a second buffer connection member, a tolerance ring, and a tolerance ring connection member;

[0011] The output shaft connecting piece is sleeved on the rotating shaft of the brushless DC motor; the output shaft connecting piece is installed in the second buffer connecting piece; the second buffer connecting piece is installed in the tolerance ring connecting piece; the tolerance ring connecting piece is installed in the tolerance ring.

[0012] In a further embodiment, the first buffer connector and the second buffer connector are both made of polyurethane material.

[0013] In a further embodiment, the end cover is made of aluminum alloy, and the end cover is glued and interference pressed into the outer tube.

[0014] Beneficial effects: The DC brushless motor, front-end connecting assembly and rear-end connecting assembly of the utility model are all installed in the outer tube; the front-end connecting assembly is connected to the input end of the DC brushless motor to drive the DC brushless motor to rotate, and the rear-end connecting assembly is connected to the output end of the DC brushless motor and to the outer tube to rotate with the DC brushless motor and drive the outer tube to rotate; the electric roller structure of the utility model can offset the deviation in coaxiality, and the polyurethane can reduce the impact during start-stop and reduce the noise during operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a combined sectional view of the utility model.

[0016] Figure 2 It is an exploded front view of the utility model.

[0017] Figure 3 It is an exploded axonometric diagram of the utility model.

[0018] Figure numerals: DC brushless motor 1, outer tube 2, front end connecting assembly 3, rear end connecting assembly 4, motor output shaft 5, end cover 6, first buffer connecting piece 7, tail shaft connecting piece 8, motor connecting piece 9, output shaft connecting piece 10, second buffer connecting piece 11, tolerance ring 12, tolerance ring connecting piece 13, ball bearing 14. DETAILED DESCRIPTION

[0019] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0020] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0021] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0022] A motorized roller with a soft connection structure, such as Figure 1 As shown, the motorized roller comprises: a brushless DC motor 1, an outer tube 2, a front connecting component 3 and a rear connecting component 4;

[0023] In one embodiment, Figure 1 As shown, the DC brushless motor 1, the front-end connecting component 3 and the rear-end connecting component 4 are all installed in the outer tube 2; the front-end connecting component 3 is connected to the input end of the DC brushless motor 1 to drive the DC brushless motor 1 to rotate, and the rear-end connecting component 4 is connected to the output end of the DC brushless motor 1 and to the outer tube 2 to rotate with the DC brushless motor 1 and drive the outer tube 2 to rotate.

[0024] In one embodiment, Figures 2 to 3 As shown, the front end connection assembly 3 includes: a motor output shaft 5, an end cover 6, a first buffer connection piece 7, a tail shaft connection piece 8 and a motor connection piece 9;

[0025] The motor connector 9 is fixedly connected to one end of the brushless DC motor 1; the tail shaft connector 8 is cooperatively installed in the first buffer connector 7; the end cover 6 is fixedly connected to one end of the outer tube 2; the middle part of the motor output shaft 5 is rotatably connected to the end cover 6 through a ball bearing 14, and the end of the motor output shaft 5 is sleeved with the first buffer connector 7.

[0026] In one embodiment, Figures 2 to 3 As shown, a wire hole is opened at the center of the motor output shaft 5, and the connecting cable of the DC brushless motor 1 flows out through the wire hole.

[0027] In one embodiment, Figures 2 to 3 As shown, the rear end connection assembly 4 includes: an output shaft connection member 10, a second buffer connection member 11, a tolerance ring 12 and a tolerance ring connection member 13;

[0028] The output shaft connecting member 10 is sleeved on the rotating shaft of the DC brushless motor 1; the output shaft connecting member 10 is installed in cooperation with the second buffer connecting member 11; the second buffer connecting member 11 is installed in cooperation with the tolerance ring connecting member 13; the tolerance ring connecting member 13 is installed in cooperation with the tolerance ring 12.

[0029] In one embodiment, Figures 2 to 3 As shown, the first buffer connector 7 and the second buffer connector 11 are both made of polyurethane material.

[0030] In one embodiment, Figures 2 to 3 As shown, the end cover 6 is made of aluminum alloy, and the end cover 6 is glued and interference pressed into the outer tube 2.

[0031] Working principle: When the utility model is working, first the brushless DC motor 1 is powered to rotate, and the output shaft rotation drives the output shaft connector 10 to rotate, drives the second buffer connector 11 to rotate, thereby drives the tolerance ring connector 13 to rotate, thereby drives the tolerance ring 12 to rotate, the tolerance ring 12 can be self-aligning and provide radial clamping force, thereby drives the outer tube 2 to rotate, and at the same time, when the brushless DC motor 1 is working, it drives the motor connector 9 to rotate, thereby drives the tail shaft connector 8 to rotate, thereby drives the first buffer connector 7 to rotate, so that the motor output shaft 5 rotates in the end cover 6 through the ball bearing 14.

[0032] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A motorized roller with a soft connection structure, characterized in that: The electric roller comprises: a brushless DC motor, an outer tube, a front connecting component and a rear connecting component; The DC brushless motor, the front-end connecting component and the rear-end connecting component are all installed in the outer tube; the front-end connecting component is connected to the input end of the DC brushless motor to drive the DC brushless motor to rotate, and the rear-end connecting component is connected to the output end of the DC brushless motor and to the outer tube to follow the rotation of the DC brushless motor and drive the outer tube to rotate.

2. According to claim 1, a motorized roller with a soft connection structure is characterized in that: The front end connection assembly comprises: a motor output shaft, an end cover, a first buffer connection piece, a tail shaft connection piece and a motor connection piece; The motor connector is fixedly connected to one end of the brushless DC motor; the tail shaft connector is cooperatively installed in the first buffer connector; the end cover is fixedly connected to one end of the outer tube; the middle part of the motor output shaft is rotatably connected to the end cover through a ball bearing, and the end of the motor output shaft is sleeved with the first buffer connector.

3. According to claim 2, a motorized roller with a soft connection structure is characterized in that: A wire hole is provided at the center of the motor shaft, and the connecting cable of the brushless DC motor flows out through the wire hole.

4. According to claim 2, the motorized roller with a soft connection structure is characterized in that: The rear end connection assembly comprises: an output shaft connection piece, a second buffer connection piece, a tolerance ring and a tolerance ring connection piece; The output shaft connecting piece is sleeved on the rotating shaft of the brushless DC motor; the output shaft connecting piece is installed in the second buffer connecting piece; the second buffer connecting piece is installed in the tolerance ring connecting piece; the tolerance ring connecting piece is installed in the tolerance ring.

5. According to claim 4, the motorized roller with a soft connection structure is characterized in that: The first buffer connecting piece and the second buffer connecting piece are both made of polyurethane material.

6. According to claim 2, the motorized roller with a soft connection structure is characterized in that: The end cover is made of aluminum alloy, and the end cover is glued and pressed into the outer tube with interference fit.

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