An electric roller with controllable start-up speed

Abstract

This utility model relates to the field of electric roller technology and discloses an electric roller with controllable starting speed. The electric roller includes mounting bases on both sides, and multiple anti-slip components on its outer wall. Each anti-slip component includes an anti-slip plate, which is slidably connected to the outer wall of the electric roller. Multiple slots are formed inside the electric roller, and multiple anti-slip grooves are formed on the outer wall of each anti-slip plate. A limiting strip is fixedly connected to the bottom of each anti-slip plate. In this utility model, the anti-slip plates and anti-slip grooves increase the friction between the anti-slip plate and the conveyor belt. By inserting the limiting strip into the slot, the anti-slip plates can be quickly installed and removed. This solves the problem that existing electric rollers with controllable starting speed cannot flexibly adjust the surface anti-slip performance according to the characteristics of the conveyed materials, improving the equipment adaptability and maintenance efficiency in scenarios involving alternating conveying of multiple materials.

Description

Technical Field

[0001] This utility model relates to the field of electric roller technology, and in particular to an electric roller with controllable starting speed. Background Technology

[0002] In industrial conveying, mining and other fields, the driving performance of belt conveyors directly affects the stability of the system. Electric rollers, due to their integrated motor and transmission mechanism and compact structure, have become the mainstream drive device. However, the characteristics of the conveyed materials and working conditions impose strict requirements on their starting performance. Uncontrollable starting speed can easily lead to motor impact, conveyor belt damage, and material breakage. Therefore, an electric roller with controllable starting speed has emerged. By precisely controlling the starting process, it can achieve low impact and smooth acceleration, meeting the safe operation requirements of heavy-duty and precision conveying scenarios.

[0003] Existing mechanical solutions for controllable starting of electric rollers primarily transmit power through buffering or friction regulation. There are two main types: one is a hydraulic coupling drive structure, where a hydraulic coupling is connected in series between the motor and the roller. During startup, the oil transmits power through centrifugal force, and the torque gradually increases as the motor speed increases, achieving a soft start. The other is a planetary gear + friction plate braking structure, where a planetary gear reducer is integrated inside the roller, and the preload of the friction plates is controlled by a disc spring. In the initial stage of startup, the friction plates slide to transmit part of the power, and the speed increases gradually as the contact degree increases.

[0004] Both existing hydraulic coupling drive structures and electromagnetic clutch drive structures suffer from the problem of "inability to flexibly adjust the anti-slip performance of the roller surface according to the characteristics of the conveyed material, resulting in poor adaptability to different material conveying needs." For example, when conveying smooth metal or plastic parts, if the roller surface is made of conventional smooth metal material, slippage between the conveyor belt and the roller is likely to occur, leading to a decrease in material conveying efficiency. When switching to conveying rough-surfaced ores or easily scratched soft materials, if anti-slip strips are fixedly welded to the roller surface to improve anti-slip performance, they may scratch the soft materials or cause the rough materials to get stuck in the gaps between the anti-slip strips. In existing technologies, the anti-slip structure on the roller surface is mostly a fixed and non-removable design, which cannot be flexibly replaced or adjusted according to changes in materials, making it difficult to adapt to the needs of scenarios where multiple types of materials are conveyed alternately. Therefore, an electric roller with controllable starting speed is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides an electric roller with controllable starting speed, which aims to improve the problem that the existing electric rollers with controllable starting speed "cannot flexibly adjust the anti-slip performance of the roller surface according to the characteristics of the conveyed material, and have poor adaptability to the conveying needs of different materials".

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] An electric roller with controllable starting speed includes an electric roller, with mounting seats on both sides of the electric roller and multiple anti-slip components on the outer wall of the electric roller.

[0008] Each of the aforementioned anti-slip components includes an anti-slip plate, each anti-slip plate being slidably connected to the outer wall of the electric roller. The electric roller has multiple slots inside, and each anti-slip plate has multiple anti-slip grooves on its outer wall. A limiting strip is fixedly connected to the bottom of each anti-slip plate, and each limiting strip is slidably connected to the inside of a slot. Each limiting strip has symmetrically fixed blocks fixedly connected inside it. Each fixed block has a sliding block slidably connected inside it. A limiting ball is fixedly connected to one side of each sliding block, and each limiting ball engages with a slot. Each fixed block has a spring inside it, with one end fixedly connected to the side wall of the sliding block and the other end fixedly connected to the inner wall of the fixed block. An installation assembly is provided at the bottom of the electric roller.

[0009] As a further description of the above technical solution:

[0010] The mounting assembly includes a connecting block and a fixing seat. One side of the connecting block is fixedly connected to the side wall of the mounting seat, and the fixing seat is disposed at the bottom of the mounting seat.

[0011] As a further description of the above technical solution:

[0012] A connecting post is fixed at the bottom of the connecting block, and a sliding post is slidably connected inside the connecting block. The sliding post passes through the connecting block and is slidably connected inside the connecting post.

[0013] As a further description of the above technical solution:

[0014] The outer wall of the sliding column is fixedly connected to a limiting disk, one side of which is fixedly connected to the upper surface of the connecting block. The connecting block is a hollow columnar structure.

[0015] As a further description of the above technical solution:

[0016] The fixed base is internally connected to a guide post, and the guide post is internally provided with a locking groove.

[0017] As a further description of the above technical solution:

[0018] The outer wall of the sliding column is fixedly connected to an extrusion shaft, and multiple fixed balls are arranged inside the connecting column.

[0019] As a further description of the above technical solution:

[0020] The outer wall of each fixed ball is in contact with the outer wall of the extrusion shaft, each fixed ball is engaged with the engaging groove, and a spring is sleeved on the outer wall of the sliding column.

[0021] As a further description of the above technical solution:

[0022] One end of the second spring is fixedly connected to the inner wall of the connecting block, and the other end of the second spring is fixedly connected to the outer wall of the sliding column.

[0023] This utility model has the following beneficial effects:

[0024] 1. In this utility model, the starting speed can be controlled by changing the frequency and voltage of the motor power supply. The friction between the anti-slip plate and the conveyor belt can be increased by using the anti-slip plate and anti-slip groove. The installation is achieved by inserting the limiting strip into the slot and then driving the limiting ball into the groove inside the slot, thereby achieving the effect of quick installation and removal of the anti-slip plate. This solves the problem that the existing controllable starting speed electric roller cannot flexibly adjust the surface anti-slip performance according to the characteristics of the conveyed material, and improves the equipment adaptation efficiency and maintenance and replacement efficiency in the scenario of alternating conveying of multiple types of materials.

[0025] 2. In this utility model, by pulling the sliding column, the extrusion shaft is moved, and then the connecting column is inserted into the guide column. The elastic restoring force of the spring two drives the extrusion shaft to reset, and the extrusion fixing ball is inserted into the locking groove to achieve the effect of quick installation of the electric roller. This solves the problems of cumbersome installation and large space occupation of traditional equipment, and improves the efficiency of installation and deployment. Attached Figure Description

[0026] Figure 1 This is a three-dimensional schematic diagram of an electric roller with controllable starting speed proposed in this utility model;

[0027] Figure 2 An exploded view of an electric drum with controllable start-up speed proposed in this utility model;

[0028] Figure 3 This is a schematic diagram of the anti-slip plate of an electric roller with controllable starting speed proposed in this utility model;

[0029] Figure 4 for Figure 3 Enlarged view of point A in the middle;

[0030] Figure 5 This is a schematic diagram of the structure of the fixing seat for an electric roller with controllable starting speed proposed in this utility model;

[0031] Figure 6 for Figure 5 Enlarged view of point B in the middle;

[0032] Figure 7for Figure 5 Enlarged view of point C in the middle.

[0033] Legend:

[0034] 1. Electric roller; 2. Mounting base; 3. Fixed base; 4. Slot; 5. Anti-slip plate; 6. Anti-slip groove; 7. Limiting strip; 8. Fixing block; 9. Sliding block; 10. Spring 1; 11. Limiting ball; 12. Connecting block; 13. Connecting column; 14. Sliding column; 15. Limiting plate; 16. Fixing ball; 17. Extrusion shaft; 18. Spring 2; 19. Guide column; 20. Engaging groove. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0036] Reference Figure 1 - Figure 4 The present invention provides an embodiment of an electric roller with controllable starting speed, comprising an electric roller 1, with mounting seats 2 on both sides of the electric roller 1, the two mounting seats 2 being symmetrically distributed, and their inner sidewalls being rotatably connected to the end shaft of the electric roller 1 through bearings, which can provide stable support for the electric roller 1 without affecting the normal rotation of the electric roller 1. The outer wall of the electric roller 1 is provided with multiple anti-slip components to ensure that the friction force on the conveyor belt is evenly distributed when the roller rotates, avoiding excessive local force that could cause the conveyor belt to deviate.

[0037] Multiple anti-slip components include anti-slip plates 5, each anti-slip plate 5 having an arc-shaped sheet structure, its inner arc surface completely fitting the outer wall of the electric roller 1, and being connected to the outer wall of the electric roller 1 by a sliding fit. Each anti-slip plate 5 is slidably connected to the outer wall of the electric roller 1. Multiple slots 4 are opened inside the electric roller 1, the number of slots 4 corresponding one-to-one with the number of anti-slip components, and each slot 4 penetrates through the end of the electric roller 1, its cross-section having a rectangular structure. Multiple anti-slip grooves 6 are opened on the outer wall of each anti-slip plate 5. A limiting strip 7 is fixedly connected to the bottom of each anti-slip plate 5, and each limiting strip 7 is slidably connected inside the slot 4. The length of the limiting strip 7 is consistent with the axial length of the anti-slip plate 5, and its cross-sectional dimensions match the cross-sectional dimensions of the slot 4. Each limiting strip 7 can slide into the slot 4 along the axial direction of the slot 4, forming a radial limit for the anti-slip plate 5, preventing the anti-slip plate 5 from detaching from the outer wall of the roller due to centrifugal force when the roller rotates.

[0038] Each limiting strip 7 has two sets of symmetrical fixing blocks 8 fixedly connected inside. The two sets of fixing blocks 8 are located near the two ends of the limiting strip 7, and each set of fixing blocks 8 is embedded inside the limiting strip 7. Its outer wall is tightly fitted with the inner wall of the limiting strip 7. Each fixing block 8 has a sliding block 9 slidably connected inside. Each sliding block 9 has a limiting ball 11 fixedly connected to one side. Half of the volume of the limiting ball 11 is embedded in the end of the sliding block 9, and the other half protrudes from the outer wall of the fixing block 8. Each limiting ball 11 is engaged with the slot 4. Each fixed block 8 is equipped with a spring 10 inside. In its natural state, the spring 10 is slightly compressed and pushes the sliding block 9 away from the axis of the limiting strip 7 through elastic force, so that the limiting ball 11 always remains engaged with the slot of the slot 4. One end of each spring 10 is fixedly connected to the side wall of the sliding block 9, and the other end of each spring 10 is fixedly connected to the inner wall of the fixed block 8. The bottom of the electric roller 1 is equipped with an installation component to realize the fixed installation of the electric roller 1 and the external frame.

[0039] Reference Figure 5 and Figure 6 The mounting assembly includes a connecting block 12 and a fixing seat 3. One side of the connecting block 12 is fixedly connected to the side wall of the mounting seat 2, and the fixing seat 3 is located at the bottom of the mounting seat 2. The connecting block 12 has a block-shaped structure, and one side of its wall is fixedly connected to the outer side wall of the mounting seat 2 by bolts. The fixing seat 3 has a cuboid structure and is located directly below the mounting seat 2 for fixed connection with an external frame by bolts. The top of the fixing seat 3 has a mounting hole that matches the connecting post 13 at the bottom of the connecting block 12. The bottom of the connecting block 12 is fixed with the connecting post 13, which has a cylindrical structure and its outer diameter is slightly smaller than the inner diameter of the mounting hole at the top of the fixing seat 3, so that it can be inserted into the mounting hole for initial positioning.

[0040] A sliding column 14 is slidably connected inside the connecting block 12. The sliding column 14 passes through the connecting block 12 and is slidably connected inside the connecting column 13. A limiting disk 15 is fixedly connected to the outer wall of the sliding column 14. The diameter of the limiting disk 15 is larger than the inner diameter of the through hole of the connecting block 12. Its lower surface is tightly fitted with the upper surface of the connecting block 12 to form the upper limit of the sliding column 14, preventing the sliding column 14 from falling down from the through hole of the connecting block 12. One side of the limiting disk 15 is fixedly connected to the upper surface of the connecting block 12. The connecting block 12 is a hollow columnar structure. A guide column 19 is fixedly connected inside the fixing seat 3. The axis of the guide column 19 coincides with the axis of the connecting column 13. Its outer wall is slidably fitted with the inner wall of the central hole of the connecting column 13.

[0041] The guide post 19 has an engagement groove 20 inside. The outer wall of the sliding post 14 is fixedly connected to the extrusion shaft 17. When the sliding post 14 moves up and down, the extrusion shaft 17 moves up and down synchronously. The fixed ball 16 is extruded by the outer wall of the cone, causing the fixed ball 16 to move to the outside of the connecting post 13 or return to the inside. The part of each fixed ball 16 protruding from the outer wall of the connecting post 13 can engage with the engagement groove 20 of the guide post 19, thereby fixing the connecting post 13 and the guide post 19 and locking the installation component. The connecting post 13 has multiple fixed balls 16 inside. The outer wall of each fixed ball 16 is in contact with the outer wall of the extrusion shaft 17. Each fixed ball 16 engages with the engagement groove 20. The outer wall of the sliding post 14 is fitted with a second spring 18. One end of the second spring 18 is fixedly connected to the inner wall of the connecting block 12, and the other end of the second spring 18 is fixedly connected to the outer wall of the sliding post 14.

[0042] Working Principle: When using this controllable starting speed electric roller, the starting speed is first controlled by adjusting the frequency and voltage of the motor power supply. The limiting strip 7 is inserted into the slot 4, and then the limiting ball 11 is squeezed. The limiting ball 11 compresses the spring 10 inside the fixing block 8, causing elastic deformation and storing elastic potential energy. Then, under the elastic restoring force of the spring 10, the limiting ball 11 is pushed into the groove inside the slot 4, achieving quick installation and adjustment of the anti-slip plate 5. The cooperation between the anti-slip plate 5 and the anti-slip groove 6 increases the friction between the anti-slip plate 5 and the belt or object, achieving the effect of anti-slip conveying. During the operation of the electric roller 1... During installation, the user first aligns the mounting base 2 with the fixed base 3, then pulls the sliding column 14, causing it to move the pressing shaft 17. As the pressing shaft 17 moves, it releases the fixed balls 16, allowing them to slide freely inside the connecting column 13. Simultaneously, it compresses the second spring 18, causing it to elastically deform and store elastic potential energy. Then, the user inserts the connecting column 13 into the guide column 19, releases the pressing force, and the elastic restoring force of the second spring 18 pushes the pressing shaft 17 back to its original position. This compresses the fixed balls 16 into the locking groove 20, achieving a lock and providing convenient operation for the user.

Claims

1. An electrically driven drum with controllable start-up speed, comprising an electrically driven drum (1), characterized in that: The electric roller (1) is provided with mounting bases (2) on both sides, and the outer wall of the electric roller (1) is provided with multiple anti-slip components; Each of the aforementioned anti-slip components includes an anti-slip plate (5), each anti-slip plate (5) being slidably connected to the outer wall of the electric roller (1). The electric roller (1) has multiple slots (4) inside, and each anti-slip plate (5) has multiple anti-slip grooves (6) on its outer wall. Each anti-slip plate (5) has a limiting strip (7) fixedly connected to its bottom, and each limiting strip (7) is slidably connected inside the slot (4). Each limiting strip (7) has symmetrically arranged fixing blocks (8) fixedly connected inside it. Each of the fixed blocks (8) has a sliding block (9) slidably connected inside. Each of the sliding blocks (9) has a limiting ball (11) fixedly connected to one side. Each limiting ball (11) engages with the slot (4). Each of the fixed blocks (8) has a spring (10) inside. One end of each spring (10) is fixedly connected to the side wall of the sliding block (9), and the other end of each spring (10) is fixedly connected to the inner wall of the fixed block (8). The electric roller (1) has an installation assembly at its bottom.

2. A motorized roller with controllable start-up speed according to claim 1, characterized in that: The mounting assembly includes a connecting block (12) and a fixing seat (3). One side of the connecting block (12) is fixedly connected to the side wall of the mounting seat (2), and the fixing seat (3) is disposed at the bottom of the mounting seat (2).

3. A motorized roller with controllable start-up speed according to claim 2, characterized in that: The bottom of the connecting block (12) is fixed with a connecting column (13), and a sliding column (14) is slidably connected inside the connecting block (12). The sliding column (14) passes through the connecting block (12) and is slidably connected inside the connecting column (13).

4. A motorized roller with controllable start-up speed according to claim 3, characterized in that: The sliding column (14) is fixedly connected to the outer wall of the limiting disk (15), and one side of the limiting disk (15) is fixedly connected to the upper surface of the connecting block (12). The connecting block (12) is a hollow columnar structure.

5. A motorized roller with controllable start-up speed according to claim 4, characterized in that: The fixed base (3) is fixedly connected to a guide post (19), and the guide post (19) has a locking groove (20) inside.

6. The electric roller with controllable starting speed according to claim 5, characterized in that: The outer wall of the sliding column (14) is fixedly connected to the extrusion shaft (17), and the connecting column (13) is provided with multiple fixed balls (16).

7. The electric roller with controllable starting speed according to claim 6, characterized in that: The outer wall of each fixed ball (16) is in contact with the outer wall of the extrusion shaft (17), and each fixed ball (16) is engaged with the engaging groove (20). The outer wall of the sliding column (14) is fitted with a spring (18).

8. An electric roller with controllable starting speed according to claim 7, characterized in that: One end of the second spring (18) is fixedly connected to the inner wall of the connecting block (12), and the other end of the second spring (18) is fixedly connected to the outer wall of the sliding column (14).

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