Impact-resistant drum

Abstract

The application discloses an anti-impact roller and relates to the field of electric rollers, which comprises a rear axle, a cylinder, a motor assembly and a front axle, the two ends of the cylinder are rotationally connected with the rear axle and the front axle through bearings, the other end of the rear axle is fixedly installed with the tail of the motor assembly, and the outer side of the motor assembly is fixedly connected with a middle supporting mechanism. The application controls the elongation of the movable rods of multiple groups of electric cylinders, so that the turning arms rotate around the connecting points with the supporting blocks, the other ends of the turning arms push the column frames connected therewith to make outward expansion movement, the column frames apply force to the rollers, the rollers are attached to the inner wall of the cylinder, multiple groups of the rollers are synchronously attached and supported on the inner wall of the cylinder, the middle part of the cylinder is supported, the cylinder is changed from traditional double-end support into three-point support of the front, the middle and the tail, the carrying capacity and the anti-impact performance are enhanced, and the service life is prolonged.

Description

Technical Field

[0001] This invention relates to the field of electric roller technology, specifically to an impact-resistant roller. Background Technology

[0002] Rollers, cylindrical parts, are divided into drive and driven rollers. They are used in various transmission and conveying systems, such as printing machines, digital printers, papermaking and packaging machinery, etc. Electric rollers are devices used for conveying materials, typically driven by an electric motor to move materials from one place to another. Electric rollers are widely used in logistics, manufacturing, mining, ports, and other fields, significantly improving material handling efficiency and reducing labor costs. Electric rollers are generally characterized by high efficiency, reliability, and durability, and can adapt to various environments and working conditions.

[0003] The working principle of an electric roller conveyor mainly involves a combination of a motor and a reducer to drive the roller to rotate, thereby conveying materials or objects. Specifically, electric roller conveyors can be divided into two types: external and internal. External roller conveyors have the motor located outside the roller, while the reducer is installed inside the equipment; internal roller conveyors have both the motor and reducer housed within the roller body. For internal electric roller conveyors, the motor and reducer are located in the middle of the roller, with the two ends of the roller supported by bearings and the front and rear axles respectively. When conveying heavy loads or encountering significant impacts, the middle of the roller is most prone to deformation due to the lack of support, leading to abnormal roller rotation or even damage. Summary of the Invention

[0004] The purpose of this invention is to provide an impact-resistant roller to solve the problem mentioned in the background art regarding built-in electric rollers, where the motor and reducer are located in the middle of the roller, and the two ends of the roller are supported by bearings and the front and rear axles respectively. When the built-in electric roller is conveying heavy weights or encounters a large impact, the middle of the roller is most prone to deformation due to lack of support, leading to abnormal roller rotation or even damage.

[0005] To achieve the above objectives, the present invention provides the following technical solution: an impact-resistant roller, comprising a rear shaft, a cylinder, a motor assembly, and a front shaft, wherein both ends of the cylinder are rotatably connected to the rear shaft and the front shaft respectively via bearings, the other end of the rear shaft is fixedly installed to the tail of the motor assembly, and a central support mechanism is fixedly connected to the outside of the motor assembly, the central support mechanism abutting against the middle of the inner cavity of the cylinder; The central support mechanism includes a mounting ring, support blocks, a tilting arm, an electric cylinder, side rods, rollers, a column frame, a connecting ring, and springs. Multiple sets of support blocks are arranged around and fixedly connected to one side of the mounting ring. The other end of each support block is rotatably connected to the tilting arm. The column frame is rotatably connected to the notch at the other end of the tilting arm. The rollers are rotatably connected inside the column frame and roll against the inner wall of the cylinder. Multiple sets of springs are located at the end notch of the tilting arm and abut against the lower side of the column frame. The middle part of the tilting arm is rotatably connected to one end of the side rod. The side rod is rotatably connected to one side of the connecting ring. The movable rod of the electric cylinder is fixedly connected to the other side of the connecting ring.

[0006] Preferably, the electric cylinder is located on one side of the support block, and the tail end of the electric cylinder is fixedly installed on one side of the mounting ring.

[0007] Preferably, multiple sets of the electric cylinders are distributed around the outside of the motor assembly, and the mounting ring is fixedly connected to the outside of the motor assembly.

[0008] Preferably, the connecting ring is located on the outside of the motor assembly, and the mounting ring and the connecting ring are arranged in parallel.

[0009] Preferably, a first helical gear is fixedly installed at the output end of the motor assembly, and a ring frame is fixedly installed on one side of the housing of the motor assembly by bolts, with the first helical gear located in the middle of the ring frame.

[0010] Preferably, a second helical gear is meshed with the outer side of the first helical gear, and a third helical gear is fixedly installed at the other end of the shaft of the second helical gear.

[0011] Preferably, a fourth helical gear is meshed with the outer side of the third helical gear, and a fifth helical gear is fixedly installed at one end of the shaft of the fourth helical gear.

[0012] Preferably, the shaft portions of the second helical gear and the fourth helical gear are rotatably connected to the ring frame, and the ring frame is fixedly connected to one end of the front axle.

[0013] Preferably, a gear ring is meshed with the outer side of the fifth helical gear, and a connecting frame is fixedly connected to one side of the gear ring.

[0014] Preferably, the connecting frame is fixedly connected to one end of the inner cavity of the cylinder.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. In this invention, by controlling the extension of multiple sets of electric cylinder moving rods, the connecting ring pushes the side rod to expand outward and applies an outward force at the middle of the tilting arm, causing the tilting arm to rotate around the connection point with the support block. The other end of the tilting arm moves outward and pushes the column frame connected to it to expand outward. The column frame then applies force to the roller, causing the roller to adhere to the inner wall of the cylinder. Multiple sets of tilting arms move synchronously, causing multiple sets of rollers to simultaneously adhere to and support the inner wall of the cylinder, providing support for the middle of the cylinder. This transforms the cylinder from a traditional double-support at the head and tail to a three-point support at the head, middle, and tail, enhancing its load-bearing capacity and impact resistance, and extending its service life.

[0016] 2. In this invention, the mounting ring serves as a support component, with multiple sets of electric cylinders evenly surrounding one side. Controlling the simultaneous activation of these multiple sets of electric cylinders causes their movable rods to extend synchronously, pushing the connecting ring to move along a straight line. This ensures that the connecting ring remains horizontal with the mounting ring at all times. During the movement, the connecting ring pushes multiple sets of side rods, ensuring that the force applied to the multiple sets of side rods is consistent in magnitude and direction, all pointing outwards at an angle. This makes the rotation angle of the multiple sets of tilting arms consistent, thereby maximizing the consistency of the force applied to the inner wall of the cylinder by the multiple sets of rollers, ensuring the stability of the internal support.

[0017] 3. In this invention, the control motor assembly starts, and the output end of the motor assembly drives the first helical gear to rotate. The first helical gear meshes with the second helical gear to rotate. The second and third helical gears are coaxially mounted and rotate synchronously under the support of the ring frame. The radius of the first helical gear is smaller than that of the second helical gear, achieving a first speed reduction. The third helical gear meshes with the fourth helical gear to rotate. The fourth and fifth helical gears are also coaxially mounted and rotate synchronously under the support of the ring frame. The radius of the third helical gear is smaller than that of the fourth helical gear, achieving a second speed reduction. The fifth helical gear meshes with the fifth helical gear, thereby driving the connecting frame to rotate. The connecting frame then drives the cylinder to rotate between the rear and front axles, thereby achieving speed reduction and torque increase, thus realizing the conveying function. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural diagram of an impact-resistant roller according to the present invention; Figure 2 This is a planar schematic diagram of the interior of an impact-resistant roller according to the present invention; Figure 3 This is a three-dimensional structural diagram showing the positional relationship of the central support mechanism of an impact-resistant roller according to the present invention; Figure 4 This is a three-dimensional structural diagram of the central support mechanism of an impact-resistant roller according to the present invention; Figure 5 This is a partial three-dimensional structural diagram of the central support mechanism of an impact-resistant roller according to the present invention; Figure 6 This is a first three-dimensional structural diagram of a transmission component in an impact-resistant roller according to the present invention; Figure 7 This is a schematic diagram of the second three-dimensional structure of the transmission component in an impact-resistant roller according to the present invention.

[0019] In the diagram: 1. Rear axle; 2. Cylinder; 3. Motor assembly; 4. Central support mechanism; 41. Mounting ring; 42. Support block; 43. Tilting arm; 44. Electric cylinder; 45. Side rod; 46. Roller; 47. Column frame; 48. Connecting ring; 49. Spring; 5. Front axle; 6. Ring frame; 7. First helical gear; 8. Second helical gear; 9. Third helical gear; 10. Fourth helical gear; 11. Fifth helical gear; 12. Gear ring; 13. Connecting frame. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0021] Example 1: Refer to Figure 1-7 As shown: An impact-resistant roller includes a rear shaft 1, a cylinder 2, a motor assembly 3, and a front shaft 5. Both ends of the cylinder 2 are rotatably connected to the rear shaft 1 and the front shaft 5 respectively via bearings. The other end of the rear shaft 1 is fixedly installed to the tail of the motor assembly 3. A central support mechanism 4 is fixedly connected to the outside of the motor assembly 3, and the central support mechanism 4 abuts against the middle of the inner cavity of the cylinder 2. The central support mechanism 4 includes a mounting ring 41, support blocks 42, a tilting arm 43, an electric cylinder 44, a side rod 45, rollers 46, a column frame 47, a connecting ring 48, and a spring 49. Multiple sets of support blocks 42 are distributed around and fixedly connected to one side of the mounting ring 41. The other end of the support block 42 is rotatably connected to the tilting arm 43, and the column frame 47 is rotatably connected to the tilting arm 48. At the notch at the other end of arm 43, roller 46 is rotatably connected to the inside of column frame 47, and roller 46 rolls against the inner wall of cylinder 2. Multiple sets of springs 49 are located at the end notch of tilting arm 43 and abut against the lower side of column frame 47. The middle part of tilting arm 43 is rotatably connected to one end of side rod 45. Side rod 45 is rotatably connected to one side of connecting ring 48. The movable rod of electric cylinder 44 is fixedly connected to the other side of connecting ring 48. Electric cylinder 44 is located on one side of support block 42. The tail end of electric cylinder 44 is fixedly installed on one side of mounting ring 41. Multiple sets of electric cylinders 44 are distributed around the outside of motor assembly 3. Mounting ring 41 is fixedly connected to the outside of motor assembly 3. Connecting ring 48 is located on the outside of motor assembly 3.

[0022] In this embodiment, while the roller rotates, multiple sets of electric cylinders 44 are simultaneously activated. These cylinders are evenly distributed around one side of the connecting ring 48, and their movable rods extend, pushing the connecting ring 48 to move in a straight line. During this movement, the connecting ring 48 pushes multiple sets of side rods 45, causing the side rods 45 to expand outwards and apply an outward force to the middle of the tilting arm 43. This causes the tilting arm 43 to rotate around its connection point with the support block 42. The other end of the tilting arm 43 expands outwards, pushing the connected column frame 47 to expand outwards. During the rolling motion, the column frame 47 applies force to the roller 46, causing the roller 46 to adhere to the inner wall of the cylinder 2. At the same time, the column frame 47 is subjected to the elastic force of multiple sets of springs 49, causing the roller 46 to move in an arc within a certain range, improving the smoothness of rolling. Multiple sets of tilting arms 43 move synchronously, causing multiple sets of rollers 46 to simultaneously adhere to and support the inner wall of the cylinder 2, providing support for the middle part of the cylinder 2. This transforms the cylinder 2 from a traditional double support at the head and tail to a three-point support at the head, middle, and tail, enhancing its load-bearing capacity and impact resistance, and extending its service life.

[0023] Example 2: According to Figure 4 and Figure 5 As shown, the middle part of the tilting arm 43 is rotatably connected to one end of the side rod 45. The side rod 45 is rotatably connected to one side of the connecting ring 48. The movable rod of the electric cylinder 44 is fixedly connected to the other side of the connecting ring 48. The electric cylinder 44 is located on one side of the support block 42. The tail end of the electric cylinder 44 is fixedly installed on one side of the mounting ring 41. Multiple sets of electric cylinders 44 are distributed around the outside of the motor assembly 3. The connecting ring 48 is located on the outside of the motor assembly 3. The mounting ring 41 and the connecting ring 48 are arranged in parallel.

[0024] In this embodiment, the mounting ring 41 serves as a support component, with multiple sets of electric cylinders 44 evenly surrounding one side. The multiple sets of electric cylinders 44 are controlled to start synchronously, and their movable rods extend synchronously, pushing the connecting ring 48 to move in a straight line. This ensures that the connecting ring 48 remains horizontal with the mounting ring 41. During the movement, the connecting ring 48 pushes multiple sets of side rods 45, ensuring that the force applied to the multiple sets of side rods 45 is consistent in magnitude and direction, all of which are obliquely outward. This makes the multiple sets of tilting arms 43 tilt at the same angle, thereby maximizing the consistency of the force applied to the inner wall of the cylinder 2 by the multiple sets of rollers 46, ensuring the stability of the internal support.

[0025] Example 3: According to Figure 1 , Figure 2 , Figure 3 , Figure 6 and Figure 7As shown, a first helical gear 7 is fixedly installed at the output end of the motor assembly 3. A ring frame 6 is fixedly installed on one side of the housing of the motor assembly 3 by bolts. The first helical gear 7 is located in the middle of the ring frame 6. A second helical gear 8 is meshed with the outer side of the first helical gear 7. A third helical gear 9 is fixedly installed at the other end of the shaft of the second helical gear 8. A fourth helical gear 10 is meshed with the outer side of the third helical gear 9. A fifth helical gear 11 is fixedly installed at one end of the shaft of the fourth helical gear 10. The shafts of the second helical gear 8 and the fourth helical gear 10 are rotatably connected to the ring frame 6. The ring frame 6 is fixedly connected to one end of the front shaft 5. A gear ring 12 is meshed with the outer side of the fifth helical gear 11. A connecting frame 13 is fixedly connected to one side of the gear ring 12. The connecting frame 13 is fixedly connected to one end of the inner cavity of the cylinder 2.

[0026] In this embodiment, the control motor assembly 3 starts, and the output end of the motor assembly 3 drives the first helical gear 7 to rotate. The first helical gear 7 meshes with the second helical gear 8 to rotate. The second helical gear 8 and the third helical gear 9 are coaxially mounted and rotate synchronously under the support of the ring frame 6. The radius of the first helical gear 7 is smaller than the radius of the second helical gear 8, achieving a first speed reduction. The third helical gear 9 meshes with the fourth helical gear 10 to rotate. The fourth helical gear 10 and the fifth helical gear 11 are also coaxially mounted and rotate synchronously under the support of the ring frame 6. The radius of the third helical gear 9 is smaller than the radius of the fourth helical gear 10, achieving a second speed reduction. The fifth helical gear 11 meshes with the fifth helical gear 11, thereby driving the connecting frame 13 to rotate. The connecting frame 13 then drives the cylinder 2 to rotate between the rear shaft 1 and the front shaft 5, thereby achieving speed reduction and torque increase, thus realizing the conveying function.

[0027] The operating method and working principle of this device are as follows: When using this impact-resistant roller, the rear shaft 1 and the front shaft 5 are respectively mounted on a fixed carrier and connected to power. The control motor assembly 3 is started, and the output end of the motor assembly 3 drives the first helical gear 7 to rotate. The first helical gear 7 meshes with the second helical gear 8 to rotate. The second helical gear 8 and the third helical gear 9 are coaxially mounted and rotate synchronously under the support of the ring frame 6. The radius of the first helical gear 7 is smaller than the radius of the second helical gear 8, achieving a first speed reduction. The third helical gear 9 meshes with the fourth helical gear 10 to rotate. The fourth helical gear 10 and the fifth helical gear 11 are also coaxially mounted and rotate synchronously under the support of the ring frame 6. The radius of the third helical gear 9 is smaller than the radius of the fourth helical gear 10, achieving a second speed reduction. The fifth helical gear 11 meshes with the fifth helical gear 11, thereby driving the connecting frame 13 to rotate. The connecting frame 13 then drives the cylinder 2 to rotate on the rear shaft 1. The drum rotates between itself and the front axle 5, thus achieving the conveying function. While the drum rotates, multiple sets of electric cylinders 44 are started synchronously, and their movable rods extend, pushing the connecting ring 48 to move in a straight line. During the movement, the connecting ring 48 pushes multiple sets of side rods 45. The side rods 45 expand outward and apply an outward force at the middle of the tilting arm 43, causing the tilting arm 43 to rotate around the connection point with the support block 42. The other end of the tilting arm 43 moves outward and pushes the column frame 47 connected to it to expand outward. The column frame 47 then applies force to the roller 46, causing the roller 46 to adhere to the inner wall of the cylinder 2. The multiple sets of tilting arms 43 move synchronously, causing the multiple sets of rollers 46 to simultaneously adhere to and support the inner wall of the cylinder 2, providing support for the middle of the cylinder 2. This transforms the cylinder 2 from a traditional double support at the head and tail to a three-point support at the head, middle, and tail, enhancing its load-bearing capacity and impact resistance.

[0028] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An impact-resistant roller, comprising a rear axle (1), a cylinder (2), a motor assembly (3), and a front axle (5), characterized in that: The two ends of the cylinder (2) are rotatably connected to the rear shaft (1) and the front shaft (5) respectively through bearings. The other end of the rear shaft (1) is fixedly installed at the tail of the motor assembly (3). A middle support mechanism (4) is fixedly connected to the outside of the motor assembly (3). The middle support mechanism (4) abuts against the middle of the inner cavity of the cylinder (2). The central support mechanism (4) includes a mounting ring (41), a support block (42), a tilting arm (43), an electric cylinder (44), a side rod (45), a roller (46), a column frame (47), a connecting ring (48), and a spring (49). Multiple sets of the support blocks (42) are arranged around and fixedly connected to one side of the mounting ring (41). The other end of each support block (42) is rotatably connected to the tilting arm (43). The column frame (47) is rotatably connected to the notch at the other end of the tilting arm (43). The column (46) is rotatably connected inside the column frame (47), and the roller (46) rolls against the inner wall of the cylinder (2). Multiple sets of springs (49) are located at the end notch of the flipping arm (43) and abut against the lower side of the column frame (47). The middle part of the flipping arm (43) is rotatably connected to one end of the side rod (45). The side rod (45) is rotatably connected to one side of the connecting ring (48). The movable rod of the electric cylinder (44) is fixedly connected to the other side of the connecting ring (48).

2. The impact-resistant roller according to claim 1, characterized in that: The electric cylinder (44) is located on one side of the support block (42), and the tail end of the electric cylinder (44) is fixedly installed on one side of the mounting ring (41).

3. The impact-resistant roller according to claim 2, characterized in that: Multiple sets of electric cylinders (44) are distributed around the outside of the motor assembly (3), and the mounting ring (41) is fixedly connected to the outside of the motor assembly (3).

4. The impact-resistant roller according to claim 3, characterized in that: The connecting ring (48) is located on the outside of the motor assembly (3), and the mounting ring (41) and the connecting ring (48) are arranged in parallel.

5. The impact-resistant roller according to claim 4, characterized in that: The output end of the motor assembly (3) is fixedly mounted with a first helical gear (7), and a ring frame (6) is fixedly mounted on one side of the housing of the motor assembly (3) by bolts. The first helical gear (7) is located in the middle of the ring frame (6).

6. The impact-resistant roller according to claim 5, characterized in that: The outer side of the first helical gear (7) is meshed with a second helical gear (8), and the other end of the shaft of the second helical gear (8) is fixedly installed with a third helical gear (9).

7. An impact-resistant roller according to claim 6, characterized in that: The outer side of the third helical gear (9) is meshed with a fourth helical gear (10), and a fifth helical gear (11) is fixedly installed at one end of the shaft of the fourth helical gear (10).

8. An impact-resistant roller according to claim 7, characterized in that: The shaft of the second helical gear (8) and the shaft of the fourth helical gear (10) are rotatably connected to the ring frame (6), and the ring frame (6) is fixedly connected to one end of the front axle (5).

9. An impact-resistant roller according to claim 8, characterized in that: The outer side of the fifth helical gear (11) is meshed with a gear ring (12), and a connecting frame (13) is fixedly connected to one side of the gear ring (12).

10. An impact-resistant roller according to claim 9, characterized in that: The connecting frame (13) is fixedly connected to one end of the inner cavity of the cylinder (2).

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