Double drive double motion sub-belt module

Abstract

The application provides a double-drive double-mover belt module, which comprises a U-shaped base, a first driving module, a second driving module, a first synchronous belt, a second synchronous belt, a first transmission wheel set, a second transmission wheel set, a first mover sliding table and a second mover sliding table. The first synchronous belt is arranged on the first transmission wheel set, the second synchronous belt is arranged on the second transmission wheel set, the first synchronous belt and the second synchronous belt are arranged in parallel in the U-shaped base, the first mover sliding table and the second mover sliding table are arranged on the first synchronous belt and the second synchronous belt respectively, a connecting frame is arranged at each end of the U-shaped base, a rotating shaft is arranged in each connecting frame, the first transmission wheel set and the second transmission wheel set are arranged in the connecting frame, one side of the connecting frame is communicated with the inside of the U-shaped base, the first synchronous belt and the second synchronous belt pass through the connecting frame, and one end of the rotating shaft in the two connecting frames passes through the frame body and is connected with the first driving module and the second driving module. The performance and reliability of the module are significantly improved in the light load and high speed scene.

Description

Technical Field

[0001] This utility model relates to the field of linear modules, and more particularly to a dual-drive dual-motor sub-belt module. Background Technology

[0002] In the field of automation equipment, linear motion modules (such as belt modules and lead screw modules) are core components for achieving precise positioning and efficient transmission. Traditional belt modules mostly adopt a single-drive, single-acting substructure, using a single motor to drive a synchronous belt to move a slide table. However, this has the following limitations:

[0003] Insufficient flexibility: Single-acting substructures cannot achieve multi-load coordinated or independent movement, making it difficult to adapt to complex processes.

[0004] Maintenance difficulties: Traditional module transmission components are all integrated inside the base, requiring complete disassembly and resulting in long downtime.

[0005] Stability risks: When running at high speeds, the synchronous belt is prone to skipping teeth or vibration, which can lead to a decrease in positioning accuracy and require frequent tension adjustments or component replacements.

[0006] Therefore, there is an urgent need for a highly flexible, easy-to-maintain, and stable dual-drive dual-motor sub-belt module to meet the needs of multi-axis coordinated motion and rapid maintenance in industrial scenarios. Utility Model Content

[0007] In view of the above, this utility model provides a dual-drive dual-motor sub-belt module, which significantly improves performance and reliability in light-load, high-speed scenarios, and can meet the urgent needs of modern industry for high efficiency and high flexibility.

[0008] The present invention specifically adopts the following technical solution: a dual-drive dual-motor sub-belt module, comprising a U-shaped base, a first drive module, a second drive module, a first synchronous belt, a second synchronous belt, a first transmission wheel assembly, a second transmission wheel assembly, a first mover slide, and a second mover slide. The first synchronous belt is disposed on the first transmission wheel assembly, and the second synchronous belt is disposed on the second transmission wheel assembly. The first synchronous belt and the second synchronous belt are disposed parallel to each other within the U-shaped base. The first mover slide and the second mover slide are respectively disposed on the first synchronous belt and the second synchronous belt. A connecting frame is provided at each end of the U-shaped base, and a rotating shaft is mounted in each connecting frame. The first transmission wheel assembly and the second transmission wheel assembly are disposed within the connecting frame. One side of the connecting frame communicates with the interior of the U-shaped base, allowing the first synchronous belt and the second synchronous belt to pass through. One end of the rotating shaft in each of the two connecting frames passes through the frame and is respectively connected to the first drive module and the second drive module.

[0009] As a further improved technical solution, the first transmission wheel set includes a first driving wheel and a first driven wheel, the second transmission wheel set includes a second driving wheel and a second driven wheel, the first synchronous belt is sleeved on the first driving wheel and the first driven wheel, the second synchronous belt is sleeved on the second driving wheel and the second driven wheel, the first driving wheel and the second driven wheel are arranged side by side on the rotating shaft in one of the connecting frames, and the first driven wheel and the second driving wheel are arranged side by side on the rotating shaft in the other connecting frame.

[0010] As a further improved technical solution, the inner ring walls of the first driving wheel and the second driving wheel are provided with keyways, which are fixedly connected to the key on the rotating shaft. The first driven wheel and the second driven wheel are movably connected to the rotating shaft through bearings.

[0011] As a further improved technical solution, rollers are also provided in the connecting frames at both ends. The rollers are mounted above the first drive wheel in one of the connecting frames and above the second drive wheel in the other connecting frame to assist in rolling the first synchronous belt and the second synchronous belt.

[0012] As a further improved technical solution, the first drive module includes a first servo motor, a first drive master wheel, a first drive slave wheel, and a first drive synchronous belt. The first drive synchronous belt is sleeved on the first drive master wheel and the first drive slave wheel. The first drive master wheel is located at the output shaft end of the first servo motor, and the first drive slave wheel is connected to the shaft at its end.

[0013] As a further improved technical solution, the second drive module includes a second servo motor, a second drive master wheel, a second drive slave wheel, and a second drive synchronous belt. The second drive synchronous belt is sleeved on the second drive master wheel and the second drive slave wheel. The second drive master wheel is located at the output shaft end of the second servo motor, and the second drive slave wheel is connected to the shaft at its end.

[0014] As a further improved technical solution, the bottom of the U-shaped base is provided with two parallel guide rails, and the first mover slide and the second mover slide are mounted on the guide rails by sliders.

[0015] As a further improved technical solution, the first moving slide and the second moving slide are U-shaped slides with the same structure. The inner wall of the U-shaped slide is provided with a belt groove, a belt pressing block and a fixing block. There are two belt pressing blocks and the fixing block is located in the middle of the belt pressing blocks. The belt pressing blocks are detachably provided on the U-shaped slide, so that the first synchronous belt is clamped on the first moving slide and the second synchronous belt is clamped on the second moving slide.

[0016] As a further improved technical solution, adjusting screws are provided at both ends of the fixed block. The adjusting screws pass through the belt pressure blocks at both ends and are connected to the fixed block. Tightening the adjusting screws can cause the belt pressure blocks at both ends to move closer to or away from the fixed block; the belt groove is used to provide clearance space.

[0017] As a further improved technical solution, buffer rubber heads are provided at both ends of the U-shaped base, and buffer rubber heads are also provided on the opposite sides of the first mover slide and the second mover slide.

[0018] The dual-drive, dual-motor sub-belt module of this invention has the following advantages compared to the prior art:

[0019] By setting up two drive modules to drive two synchronous belts respectively, and then cooperating with the control system to precisely synchronize the two servo motors, it is ensured that the first and second moving slides can achieve high-precision individual movement, alternating action, or synchronous movement. This can significantly improve work efficiency and flexibility for application scenarios that require the two slides to work together, such as precision assembly and synchronous handling, and meet the requirements of complex process paths (such as collaborative handling, avoidance, or alternating operation).

[0020] The connecting frame is fixed to both ends of the U-shaped base with bolts. It houses the rotating shaft and transmission wheel assembly. Compared to the transmission wheel being directly installed in the base, the connecting frame provides a certain degree of isolation and protection for the transmission wheel, reducing the impact of external factors such as dust, oil, and vibration on the transmission wheel. This helps maintain the long-term stable operation of the transmission system and ensures the motion accuracy of the equipment. Moreover, the connecting frame integrates the transmission wheel and related transmission components into a modular design, optimizing the spatial layout of the overall structure and supporting complete replacement. During the manufacturing, assembly, and subsequent maintenance of the equipment, it facilitates easier installation, disassembly, and replacement, reducing downtime.

[0021] Rollers are added above the drive pulleys in the connecting frames at both ends to apply downward follow-up pressure, suppressing the risk of vibration or tooth skipping of the timing belt during high-speed operation. This effectively prevents the timing belt from detaching from the pulley teeth during high-speed operation. Combined with the timing belt tension adjustment structure, dynamic adjustment of the timing belt tension (clockwise tightening, counterclockwise loosening) is achieved, adapting to wear or thermal deformation after long-term use. This improves the stability and reliability of the entire transmission system, extends the service life of the equipment, and reduces the number of repairs and maintenance costs.

[0022] Both ends of the U-shaped base and the opposite surface of the mover slide are equipped with buffer rubber heads, which play a safety buffering role during the movement of the slide. When the slide reaches its limit position or an accidental collision occurs, the buffer rubber heads can absorb the impact energy, prevent equipment damage, and extend the service life of the equipment. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the overall structure of the dual-drive dual-motor sub-belt module of this application.

[0024] Figure 2 This is a schematic diagram of the dual-drive dual-action sub-belt module without a cover plate in this application.

[0025] Figure 3 This is a partial schematic diagram of this application. Detailed Implementation

[0026] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0027] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set up" and "connection" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal connection of two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood through the specific circumstances.

[0028] Reference Figures 1-2A dual-drive, dual-motor belt module includes a U-shaped base 100, a first drive module 200, a second drive module 300, a first synchronous belt 400, a second synchronous belt 500, a first transmission pulley group, a second transmission pulley group, a first mover slide 600, a second mover slide 700, and two parallel guide rails 101 disposed at the bottom of the U-shaped base 100. The first mover slide 600 and the second mover slide 700 are mounted on the guide rails via sliders. The first synchronous belt 400 is disposed on the first transmission pulley group. The second synchronous belt 500 is mounted on the second transmission wheel set. The first synchronous belt 400 and the second synchronous belt 500 are arranged parallel to each other within the U-shaped base 100. The first mover slide 600 and the second mover slide 700 are respectively mounted on the first synchronous belt 400 and the second synchronous belt 500. A connecting frame 800 is provided at each end of the U-shaped base 100. The connecting frame 800 is fixed to both ends of the U-shaped base 100 by bolts. The standardized interface design facilitates quick installation and replacement, reducing equipment downtime. A rotating shaft 801 is mounted within each connecting frame 800. The two ends of the rotating shaft 801 are connected to the frame body of the connecting frame 800 by bearings. The first transmission wheel set and the second transmission wheel set are mounted on the rotating shaft 801 within the connecting frame 800. One side of the connecting frame 800 communicates with the interior of the U-shaped base 100, allowing the first synchronous belt 400 and the second synchronous belt 500 to pass through. The top of the connecting frame 800 has a removable top cover 802. One end of the rotating shaft 801 within the two connecting frames 800 passes through the frame and is connected to the first drive module 200 and the second drive module 300 respectively. The first drive module 200 and the second drive module 300 serve as power sources to drive the transmission of the first synchronous belt 400 and the second synchronous belt 500 respectively, thereby driving the first moving slide 600 and the second moving slide 700 to move within the U-shaped base 100. The first moving slide 600 and the second moving slide 700 can move to the left at the same time, can move to the right at the same time, can move to the middle or both sides at the same time, or can move to the left or right individually respectively.

[0029] Specifically, the first transmission wheel set includes a first driving wheel 803 and a first driven wheel 804, and the second transmission wheel set includes a second driving wheel 805 and a second driven wheel 806. A first synchronous belt 400 is fitted onto the first driving wheel 803 and the first driven wheel 804, and a second synchronous belt 500 is fitted onto the second driving wheel 805 and the second driven wheel 806. The first driving wheel 803 and the second driven wheel 806 are arranged side by side on a rotating shaft 801 within one connecting frame 800, and the first driven wheel 804 and the second driving wheel 805 are arranged side by side on a rotating shaft 801 within another connecting frame 800. Keyways are provided on the inner ring walls of the first driving wheel 803 and the second driving wheel 805, which are securely connected to the key on the rotating shaft 801. The first driven wheel 804 and the second driven wheel 806 are movably connected to the rotating shaft 801 through bearings, and rotate relative to the rotating shaft 801. The first driving wheel 803 and the second driving wheel 805 transmit torque and prevent relative rotation with the rotating shaft 801 through an embedded mechanical fit, so that the first driving wheel 803 and the second driving wheel 805 can rotate together with the rotating shaft 801. The rotation of the first driven wheel 804 is synchronized with the rotation of the first driving wheel 803, but not necessarily with the rotation of the second driving wheel 805 located on the same rotating shaft 801. Similarly, the rotation of the second driven wheel 806 is synchronized with the rotation of the second driving wheel 805, but not necessarily with the rotation of the first driving wheel 803 located on the same rotating shaft 801.

[0030] Furthermore, rollers 807 are respectively provided in the connecting frames 800 at both ends. The rollers 807 are mounted above the first drive wheel 803 in one connecting frame 800 and above the second drive wheel 805 in the other connecting frame 800, to assist in rolling the first synchronous belt 400 and the second synchronous belt 500. By rotating in response, they apply downward rolling force to the synchronous belts, preventing the synchronous belts from dislodging from the teeth of the first drive wheel 803 and the second drive wheel 805 when running at high speed, thereby improving the stability of the system.

[0031] The first drive module 200 includes a first servo motor 201, a first drive main wheel 202, a first drive slave wheel 203, and a first drive synchronous belt 204. The first drive synchronous belt 204 is sleeved on the first drive main wheel 202 and the first drive slave wheel 203. The first drive main wheel 202 is located at the output shaft end of the first servo motor 201, and the first drive slave wheel 203 is fixedly connected to the rotating shaft 801 at its end. When the first servo motor 201 starts, it drives the first drive main wheel 202 to rotate, which in turn drives the first drive synchronous belt 204 to rotate the first drive slave wheel 203. In turn, the first drive slave wheel 203 drives the rotating shaft 801 and the first drive wheel 803 on it to rotate, which in turn drives the transmission of the first synchronous belt 400, thereby enabling the first moving slide 600 on the first synchronous belt 400 to move along the guide rail 101 within the U-shaped base 100.

[0032] The second drive module 300 includes a second servo motor 301, a second drive main wheel 302, a second drive driven wheel 303, and a second drive synchronous belt 304. The second drive synchronous belt 304 is sleeved on the second drive main wheel 302 and the second drive driven wheel 303. The second drive main wheel 302 is located at the output shaft end of the second servo motor 301, and the second drive driven wheel 303 is fixedly connected to the rotating shaft 801 at its end. Similarly, when the second servo motor 301 starts, it drives the second drive main wheel 302 to rotate, which in turn drives the second drive synchronous belt 304 to rotate the second drive driven wheel 303. In turn, the second drive driven wheel 303 drives the rotating shaft 801 and the second drive wheel 302 on it to rotate, which in turn drives the transmission of the second synchronous belt 500, thereby enabling the second moving slide 700 on the second synchronous belt 500 to move along the guide rail 101 within the U-shaped base 100.

[0033] For synchronous motion, two servo motors (a first servo motor and a second servo motor) can be precisely synchronized through a control system. During startup, operation, and shutdown, both motors receive the same control signal simultaneously, operating at the same speed and direction, thus ensuring the synchronous movement of the two slides. Each servo motor is equipped with a high-precision encoder, which monitors the motor's speed and position information in real time and feeds this information back to the control system. The control system then fine-tunes the motors based on the feedback information, ensuring that the two motors always operate synchronously, thereby achieving synchronous movement of the two slides. The control system can preset motion programs and parameters, precisely setting and adjusting parameters such as the moving speed, acceleration, and deceleration of the two slides to maintain consistency. Further details are omitted here and do not affect the understanding of this application.

[0034] Reference Figure 3The first moving slide 600 and the second moving slide 700 are U-shaped slides with the same structure. The inner wall of the U-shaped slide is provided with a belt groove 901, a belt pressure block 902 and a fixing block 903. There are two belt pressure blocks 902. The fixing block 903 is fixedly set in the middle of the belt pressure block 902. The belt pressure block 902 is detachably set on the U-shaped slide. The first synchronous belt 400 is clamped on the first moving slide 600 and the second synchronous belt 500 is clamped on the second moving slide 700. There are adjusting screws 904 at both ends of the fixing block 903. The adjusting screws 904 pass through the belt pressure blocks 902 at both ends and are connected to the fixing block 903. Turning the adjusting screws 904 can make the belt pressure blocks 902 at both ends move slightly closer to or away from the fixing block 903, thereby adjusting the tension of the synchronous belt and improving stability. Turning clockwise increases the tension, and turning counterclockwise decreases the tension. The belt groove 901 is used to provide clearance space. Specifically, the belt groove 901 on the first moving slide 600 provides clearance space for the second synchronous belt 500, preventing the second synchronous belt 500 from contacting the first moving slide 600 and affecting its movement. The belt groove 901 on the second moving slide 700 provides clearance space for the first synchronous belt 400, preventing the first synchronous belt 400 from contacting the second moving slide 700 and affecting its movement.

[0035] Furthermore, a matching lower rack plate is provided below the belt pressure block 902. The lower rack plate has toothed holes that mesh with the timing belt. The timing belts (first timing belt and second timing belt) pass through the belt pressure block 902 and the lower rack plate, and are clamped and fixed to the U-shaped slide by the two. The belt pressure block 902 has a strip-shaped hole so that the adjusting screw can move the belt pressure block 902 to adjust the tension of the timing belt.

[0036] Buffer rubber heads 102 are provided at both ends of the U-shaped base 100, and buffer rubber heads 102 are also provided on the opposite sides of the first mover slide 600 and the second mover slide 70, which play a safe buffering role during movement. The top of the U-shaped base 100 is also provided with a detachable cover plate 103, which is located in the middle of the first mover slide 600 and the second mover slide 700. The fixed ends of the first mover slide 600 and the second mover slide 700 extend from both sides of the cover plate 103. The cover plate 103 does not affect the movement of the first mover slide 600 and the second mover slide 700, and can also protect the internal structure.

[0037] Furthermore, the above embodiments are only used to illustrate the present utility model and are not intended to limit the technical solutions described in the present utility model. The understanding of this specification should be based on those skilled in the art. Although the present utility model has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still make modifications or equivalent substitutions to the present utility model. All technical solutions and improvements that do not depart from the spirit and scope of the present utility model should be covered within the scope of the claims of the present utility model.

Claims

1. A dual-drive, dual-motor sub-belt module, characterized in that: The system includes a U-shaped base, a first drive module, a second drive module, a first synchronous belt, a second synchronous belt, a first transmission wheel assembly, a second transmission wheel assembly, a first mover slide, and a second mover slide. The first synchronous belt is mounted on the first transmission wheel assembly, and the second synchronous belt is mounted on the second transmission wheel assembly. The first and second synchronous belts are arranged parallel to each other within the U-shaped base. The first and second mover slides are respectively mounted on the first and second synchronous belts. A connecting frame is provided at each end of the U-shaped base, and a rotating shaft is mounted within each connecting frame. The first and second transmission wheel assemblies are located within the connecting frames. One side of each connecting frame communicates with the interior of the U-shaped base, allowing the first and second synchronous belts to pass through. One end of each rotating shaft within one of the two connecting frames passes through the frame and connects to the first drive module and the second drive module, respectively.

2. The dual-drive dual-motor sub-belt module according to claim 1, characterized in that: The first transmission wheel set includes a first driving wheel and a first driven wheel, the second transmission wheel set includes a second driving wheel and a second driven wheel, the first timing belt is sleeved on the first driving wheel and the first driven wheel, the second timing belt is sleeved on the second driving wheel and the second driven wheel, the first driving wheel and the second driven wheel are arranged side by side on the rotating shaft in one of the connecting frames, and the first driven wheel and the second driving wheel are arranged side by side on the rotating shaft in the other connecting frame.

3. The dual-drive dual-motor sub-belt module according to claim 2, characterized in that: The first driving wheel and the second driving wheel have keyways on their inner ring walls, which are fixedly connected to the key on the rotating shaft. The first driven wheel and the second driven wheel are movably connected to the rotating shaft through bearings.

4. The dual-drive dual-motor sub-belt module according to claim 2, characterized in that: Rollers are also provided in the connecting frames at both ends. The rollers are mounted above the first drive wheel in one connecting frame and above the second drive wheel in the other connecting frame to assist in rolling the first synchronous belt and the second synchronous belt.

5. The dual-drive, dual-motor sub-belt module according to claim 2, characterized in that: The first drive module includes a first servo motor, a first drive master wheel, a first drive slave wheel, and a first drive synchronous belt. The first drive synchronous belt is sleeved on the first drive master wheel and the first drive slave wheel. The first drive master wheel is located at the output shaft end of the first servo motor, and the first drive slave wheel is connected to the shaft at its location.

6. The dual-drive dual-action sub-belt module according to claim 2, characterized in that: The second drive module includes a second servo motor, a second drive master wheel, a second drive slave wheel, and a second drive synchronous belt. The second drive synchronous belt is sleeved on the second drive master wheel and the second drive slave wheel. The second drive master wheel is located at the output shaft end of the second servo motor, and the second drive slave wheel is connected to the shaft at its location.

7. The dual-drive dual-motor sub-belt module according to any one of claims 1-6, characterized in that: The bottom of the U-shaped base is provided with two parallel guide rails, and the first mover slide and the second mover slide are mounted on the guide rails by sliders.

8. The dual-drive, dual-action sub-belt module according to claim 1, characterized in that: The first moving slide and the second moving slide are U-shaped slides with the same structure. The inner wall of the U-shaped slide is provided with a belt groove, a belt pressing block and a fixing block. There are two belt pressing blocks and the fixing block is located in the middle of the belt pressing blocks. The belt pressing blocks are detachably provided on the U-shaped slide to clamp the first synchronous belt on the first moving slide and the second synchronous belt on the second moving slide.

9. The dual-drive dual-motor sub-belt module according to claim 8, characterized in that: Adjusting screws are provided at both ends of the fixed block. The adjusting screws pass through the belt pressure blocks at both ends and are connected to the fixed block. Tightening the adjusting screws can move the belt pressure blocks at both ends closer to or away from the fixed block. The belt groove is used to provide clearance space.

10. The dual-drive, dual-action sub-belt module according to claim 1, characterized in that: Buffer rubber heads are provided at both ends of the U-shaped base, and buffer rubber heads are also provided on the opposite sides of the first mover slide and the second mover slide.

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