External power roller

Abstract

The utility model discloses an external power roller, which belongs to the technical field of material conveying equipment and comprises a motor and two bearing seats, an output shaft of the motor is connected with a driving shaft, one end of the driving shaft penetrates through one of the bearing seats and is connected with a hub, one side of the hub is provided with a driving disc, and the other side of the hub is provided with a motor. A plurality of elastic embedding bodies are arranged on the side, opposite to the driving disc, of the hub, extrusion parts are arranged on the hub and the driving disc, a connecting shaft is arranged on the driving disc, a roller assembly is inserted into one end of the connecting shaft through a first inserting groove, and the connecting shaft and the roller assembly are fixed through a bolt; one end of the roller assembly is connected with the other bearing seat, by means of the elastic characteristic of the elastic embedded body, when the motor is started, elastic deformation occurs, impact energy is absorbed, the situation that all force is transmitted to the roller assembly instantly is avoided, and the impact damage to the whole conveying system is greatly reduced.

Description

Technical Field

[0001] This utility model relates to an externally powered roller, belonging to the technical field of material conveying equipment. Background Technology

[0002] In modern industrial production and logistics transportation systems, efficient and stable material transport is a key element to ensure the smooth operation of each link, and the powered roller, as one of the core components of the conveying equipment, plays a crucial role.

[0003] Externally powered rollers place the motor outside the roller and connect it to the roller through a reasonable transmission structure, fundamentally solving the problems of heat dissipation and maintenance. Furthermore, externally powered rollers allow for the flexible selection of motors of different power and types, enabling the fulfillment of diverse industrial application scenarios and becoming one of the key innovations driving the development of modern material handling technology.

[0004] Common externally powered rollers use an electric motor as the drive source, which then drives the rollers through a transmission mechanism. However, during material conveying, the starting and stopping of the motor generates a significant impact. If this impact is directly and rigidly transmitted to the rollers and the conveying system, it can easily cause equipment vibration and component damage. Utility Model Content

[0005] The purpose of this invention is to provide an externally powered roller to solve the problems mentioned in the background art.

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

[0007] Compared to existing technologies, this utility model provides an externally powered roller, including a motor and two bearing seats. The output shaft of the motor is connected to a drive shaft. One end of the drive shaft passes through one of the bearing seats and is connected to a hub. A drive disc is provided on one side of the hub, and several elastic inserts are provided on the side of the hub opposite to the drive disc. Extrusion members are provided on the hub and the drive disc. The motor drives the drive shaft to rotate, and under the action of friction, the elastic inserts drive the drive disc to rotate. A connecting shaft is provided on the drive disc. One end of the connecting shaft is inserted into a roller assembly through a slot. The connecting shaft and the roller assembly are fixed together by bolts. One end of the roller assembly is connected to the other bearing seat.

[0008] Preferably, the extrusion component includes a sleeve that is sleeved with the hub and the drive disc. An extrusion ring is provided inside the sleeve, and multiple locking bolts for driving the extrusion ring are threaded onto the sleeve. The extrusion ring extrudes the drive disc to increase the friction between the drive disc and the elastic insert.

[0009] Preferably, the roller assembly includes multiple shafts, a connecting sleeve is sleeved on the shaft, the outer circumferential surface of the connecting sleeve is connected to a roller through a support member, a plurality of reinforcing plates are provided between the inner circumferential surface of the roller and the support member, and a connecting member is provided between two adjacent shafts.

[0010] Preferably, one end of the shaft is provided with a slot 2, and the other end of the shaft is provided with a plug-in post corresponding to the slot 2. The shaft is provided with four connecting holes, two of which are located on the slot 2 and the plug-in post, and the other two are located in the middle of the shaft.

[0011] Preferably, the connector includes three connecting screws corresponding to the connecting holes. The connecting screws on both sides pass through the connecting sleeve and the connecting hole in the middle of the shaft. Two nuts are threaded onto the connecting screws, and connecting arms are provided at the top ends of the three connecting screws.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] By setting up an elastic insert and increasing the friction between the drive disc and the elastic insert under the action of the extruder, efficient, stable and adjustable power transmission can be achieved. At the same time, under the elastic characteristics of the elastic insert, when the motor starts, it undergoes elastic deformation to absorb impact energy, rather than instantly transferring all the force to the roller assembly, which greatly reduces the impact damage to the entire conveying system.

[0014] When excessive material accumulates on the conveyor belt or when overload conditions such as jamming occur, the elastic insert will play an overload protection role in a timely manner. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the extrusion part of this utility model;

[0018] Figure 3 This is a structural exploded view of the extrusion part of this utility model;

[0019] Figure 4 This is a schematic diagram of the structure of the roller assembly of this utility model;

[0020] Figure 5 This is a partial structural exploded view of the roller assembly of this utility model.

[0021] In the diagram: 1. Motor; 2. Bearing housing; 3. Drive shaft; 4. Hub; 5. Drive disc; 6. Sleeve; 7. Extrusion ring; 8. Locking bolt; 9. Elastic insert; 10. Connecting shaft; 11. Slot 1; 12. Bolt; 13. Shaft body; 14. Slot 2; 15. Insert post; 16. Connecting sleeve; 17. Support; 18. Roller; 19. Reinforcing plate; 20. Connecting hole; 21. Connecting screw; 22. Nut; 23. Connecting arm. Detailed Implementation

[0022] 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.

[0023] Please see Figures 1-5 This utility model provides a technical solution:

[0024] like Figures 1-3 As shown, an externally powered roller includes a motor 1 and two bearing seats 2. The motor 1 serves as the power source, and its output shaft is connected to a drive shaft 3. The drive shaft 3 passes through one of the bearing seats 2 and connects to a hub 4. A drive disc 5 is provided on one side of the hub 4, and several elastic inserts 9 are provided on the side of the hub 4 opposite to the drive disc 5. Extrusion parts are provided on the hub 4 and the drive disc 5. The motor 1 drives the drive shaft 3 to rotate, and under the action of friction, the elastic inserts 9 drive the drive disc 5 to rotate. A connecting shaft 10 is provided on the drive disc 5. One end of the connecting shaft 10 is inserted into a roller assembly through a slot 11. The connecting shaft 10 and the roller assembly are fixed together by bolts 12. This dual connection method ensures the firmness of the connection between the drive disc 5 and the roller assembly. Even under high load and high speed operating conditions, it can ensure stable power transmission and reduce equipment failures caused by loose connections. One end of the roller assembly is connected to the other bearing seat 2. The overall structure is compact and the layout is reasonable.

[0025] The elastic insert 9 is made of rubber or polyurethane. Rubber has good elasticity, wear resistance and certain damping characteristics, while polyurethane performs better in terms of strength and wear resistance, and is also resistant to oil and chemical corrosion. The elastic insert 9 is prefabricated or filled on-site according to the shape of the groove reserved on the hub 4. When the motor 1 starts, it drives the hub 4 to rotate. The elastic insert 9 is embedded in the groove and subjected to friction, which drives the drive disc 5 and the roller assembly connected to it to rotate together. Due to the elastic characteristics of the elastic insert 9, it undergoes elastic deformation when the motor 1 starts, absorbing the impact energy instead of instantly transferring all the force to the roller assembly, which greatly reduces the impact damage to the entire conveying system.

[0026] In one embodiment, when starting a 10kW external power roller, if a traditional rigid transmission is used, the impact force at the moment of starting may cause the roller bearing to be subjected to a peak force of 5000N; however, if an elastomer embedded transmission is used, the elastomer can buffer 80% of the impact energy, reducing the peak force on the roller bearing to less than 1000N, which greatly reduces the impact damage to the entire conveying system.

[0027] Furthermore, the extrusion component is an important guarantee for ensuring the reliability of power transmission. The extrusion component includes a sleeve 6, which is sleeved with the hub 4 and the drive disc 5. An extrusion ring 7 is provided inside the sleeve 6, and multiple locking bolts 8 are threaded on the sleeve 6 to drive the extrusion ring 7. By adjusting the tightness of the locking bolts 8, the friction between the drive disc 5 and the insert 9 can be effectively improved to adapt to the power requirements under different working conditions and prevent slippage.

[0028] like Figure 4 As shown, the roller assembly includes multiple shafts 13, with connecting sleeves 16 sleeved on the shafts 13. The outer circumferential surface of the connecting sleeves 16 is connected to a roller 18 via a support member 17. The support member 17 ensures that the roller 18 can rotate stably around the shafts 13. Several reinforcing plates 19 are provided between the inner circumferential surface of the roller 18 and the support member 17. These reinforcing plates 19 significantly improve the rigidity of the roller 18, enabling it to withstand greater material weight and impact force, and extending the service life of the roller. Connectors are provided between two adjacent shafts 13.

[0029] like Figure 5 As shown, one end of the shaft 13 is provided with a slot 2 14, and the other end of the shaft 13 is provided with a plug post 15 corresponding to the slot 2 14. Adjacent shafts 13 are initially positioned by this plug-in method. The shaft 13 is provided with four connecting holes 20, two of which are located on the slot 2 14 and the plug post 15, and the other two are located in the middle of the shaft 13, which provides convenience for subsequent connection and fixation.

[0030] Furthermore, the connector includes three connecting screws 21 corresponding to the connecting holes 20. The connecting screws 21 on both sides pass through the connecting sleeve 16 and the connecting hole 20 in the middle of the shaft 13. Two nuts 22 are threaded onto the connecting screws 21. Connecting arms 23 are provided at the top of the three connecting screws 21. This connector design not only makes the connection between the shafts 13 tight, but also facilitates assembly and disassembly. When a shaft 13 or component fails, it can be quickly replaced, reducing maintenance costs.

[0031] In this embodiment, during installation, the output shaft of motor 1 is precisely connected to drive shaft 3 to ensure concentricity. A reliable method such as a key connection can be used, and appropriate tightening measures are taken to prevent loosening. One end of drive shaft 3 is passed through one of the bearing seats 2, the bearing is installed, and the clearance is adjusted to ensure that drive shaft 3 can rotate freely. Next, hub 4 is connected to drive shaft 3, again ensuring a secure connection. Drive disc 5 is installed on one side of hub 4. Embedded body 9 is installed at the corresponding position between hub 4 and drive disc 5 according to design requirements. Then, sleeve 6 is fitted, compression ring 7 is inserted, and the friction between drive disc 5 and embedded body 9 is adjusted by tightening locking bolts 8. To achieve the initial settings, for the roller assembly, first, each shaft 13 is initially connected through slot 2 14 and plug-in post 15. At the same time, the connecting sleeve 16 is fitted onto the shaft 13, and the support 17 and reinforcing plate 19 are installed. Finally, the roller 18 is installed onto the support 17, and then the connecting screw 21 is passed through the corresponding connecting hole 20 and the nut 22 is tightened to ensure a tight connection between the shaft 13 and the connecting sleeve 16. One end of the roller assembly is connected to the drive disk 5 through the connecting shaft 10, and the slot 11 is used to insert and the bolt 12 is tightened. The other end is connected to another bearing seat 2, the bearing is installed and adjusted, and the assembly of the entire external power roller is completed.

[0032] When in operation, start motor 1. The output shaft of motor 1 drives drive shaft 3 to rotate at a constant speed. Drive shaft 3 drives hub 4 to rotate. Due to the friction between insert 9 and drive disc 5, drive disc 5 rotates accordingly. Drive disc 5 transmits power to roller assembly through connecting shaft 10. Roller assembly starts to rotate, driving the material on conveyor belt forward. When it is necessary to stop for maintenance or replace parts, first stop motor 1, disassemble in the reverse order of assembly, quickly replace faulty parts, such as worn insert 9, damaged shaft 13, etc., and then reassemble and debug to restore operation.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An overhung power drum comprising a motor (1) and two bearing housings (2), characterized in that, The output shaft of the motor (1) is connected with a driving shaft (3), one end of the driving shaft (3) penetrates one of the bearing seats (2) and is connected with a wheel hub (4), one side of the wheel hub (4) is provided with a driving disc (5), the side of the wheel hub (4) opposite to the driving disc (5) is provided with a plurality of elastic inserts (9), the wheel hub (4) and the driving disc (5) are provided with extrusion pieces, the motor (1) drives the driving shaft (3) to rotate and makes the elastic inserts (9) drive the driving disc (5) to rotate under the action of friction, the driving disc (5) is provided with a connecting shaft (10), one end of the connecting shaft (10) is inserted with a roller assembly through a slot one (11), the connecting shaft (10) and the roller assembly are fixed through bolts (12), one end of the roller assembly is connected with the other bearing seat (2).

2. An externally powered drum as claimed in claim 1, wherein, The extrusion piece includes a sleeve (6), the sleeve (6) is sleeved with the wheel hub (4) and the driving disc (5), the sleeve (6) is provided with an extrusion ring (7) inside, a plurality of locking bolts (8) for driving the extrusion ring (7) are threadedly connected on the sleeve (6), the extrusion ring (7) extrudes the driving disc (5) to enhance the friction between the driving disc (5) and the elastic inserts (9).

3. An externally powered drum as claimed in claim 1, wherein, The roller assembly includes a plurality of shaft bodies (13), the shaft bodies (13) are sleeved with connecting sleeves (16), the outer circumferential surface of the connecting sleeve (16) is connected with a roller (18) through a support (17), a plurality of reinforcing plates (19) are arranged between the inner circumferential surface of the roller (18) and the support (17), a connecting piece is arranged between adjacent two shaft bodies (13).

4. An externally powered drum as claimed in claim 3, wherein, One end of the shaft body (13) is provided with a slot two (14), the other end of the shaft body (13) is provided with a plug-in column (15) corresponding to the slot two (14), four connecting holes (20) are arranged on the shaft body (13), two of the connecting holes (20) are arranged on the slot two (14) and the plug-in column (15), and the other two connecting holes (20) are arranged in the middle of the shaft body (13).

5. An externally powered drum as claimed in claim 4, wherein, The connecting piece includes three connecting screws (21) corresponding to the connecting holes (20), the connecting screws (21) on both sides penetrate the connecting sleeve (16) and the connecting holes (20) in the middle of the shaft body (13), two nuts (22) are threadedly connected on the connecting screws (21), and the top ends of the three connecting screws (21) are provided with connecting arms (23).

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