A dual power drive system

Abstract

The utility model relates to liquid crystal glass production equipment technical field especially relates to a double power drive system, its characterized in that, including: mounting seat, planetary gear mechanism, it includes planet carrier, sun gear, gear ring and a plurality of planet wheel, planet carrier is coaxially fixedly connected with first transmission shaft, and first transmission shaft rotatably installs in mounting seat, sun gear is coaxially fixedly connected with second transmission shaft, and second transmission shaft rotatably installs in mounting seat, a plurality of planet wheel rotatably installs on planet carrier, and all with sun gear engagement, gear ring rotatably installs in mounting seat, and with a plurality of planet wheel engagement, first drive mechanism, its power output end with first transmission shaft transmission connection, second drive mechanism, its power output end with second transmission shaft transmission connection, first brake mechanism, install on mounting seat, be used to brake first transmission shaft, second brake mechanism, install on mounting seat, be used to brake second transmission shaft.

Description

Technical Field

[0001] This utility model relates to the field of liquid crystal glass production equipment technology, and in particular to a dual-power drive system. Background Technology

[0002] In the manufacturing process of TFT LCD glass, streaks are a product defect that is very easy to occur and has a long-term negative impact on product quality and yield. Due to the limitations of melting process temperature and glass batch properties, it is difficult to achieve sufficient homogenization of glass melt by relying solely on thermal convection. Therefore, under specific temperature and viscosity conditions, it is necessary to use stirring equipment to mechanically stir the glass melt to improve its uniformity. At present, TFT LCD glass manufacturers generally use stirring mechanisms with spiral blades to stir and homogenize the glass melt.

[0003] Existing mixing equipment typically uses a three-phase AC motor as the power source, driving the driven sprocket via chain transmission, which in turn drives the driven shaft and mixing mechanism to rotate. In actual production, when drive components such as the transmission chain or the three-phase AC motor malfunction and require repair or replacement, the mixing rods must be stopped. Interruption of mixing not only affects the continuity and stability of production, but may also damage the mixing rods due to uneven thermal stress distribution, further increasing the risk of equipment failure. Therefore, how to provide a dual-power drive system that enables maintenance without stopping the machine has become a technical problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0004] To address the technical problems existing in the background art, this utility model proposes a dual-power drive system.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A dual-power drive system, characterized in that it comprises: Mounting base; A planetary gear mechanism includes a planet carrier, a sun gear, a ring gear, and multiple planet gears. The planet carrier is coaxially and fixedly connected to a first drive shaft, which is rotatably mounted on a mounting base. The sun gear is coaxially and fixedly connected to a second drive shaft, which is rotatably mounted on the mounting base. Multiple planet gears are rotatably mounted on the planet carrier and mesh with the sun gear. The ring gear is rotatably mounted on the mounting base and meshes with the multiple planet gears. The first drive mechanism has its power output end connected to the first drive shaft for driving the first drive shaft to rotate. The second drive mechanism has its power output end connected to the second drive shaft for driving the second drive shaft to rotate. A first braking mechanism is mounted on a mounting base and disposed corresponding to the first drive shaft, for braking the first drive shaft; The second braking mechanism is mounted on the mounting base and is disposed corresponding to the second drive shaft, and is used to brake the second drive shaft.

[0006] Furthermore, the first drive mechanism includes a first motor, a first driving wheel, a first driven wheel, and a first synchronous belt; the first motor is fixedly mounted on the mounting base, the first driving wheel is mounted on the output end of the first motor, the first driven wheel is coaxially fixedly connected to the first transmission shaft, and the first synchronous belt is wrapped around and connected between the first driving wheel and the first driven wheel; The second drive mechanism includes a second motor, a second drive wheel, a second driven wheel, and a second synchronous belt; the second motor is fixedly mounted on the mounting base, the second drive wheel is mounted on the output end of the second motor, the second driven wheel is coaxially and fixedly connected to the second transmission shaft, and the second synchronous belt is wrapped around and connected between the second drive wheel and the second driven wheel.

[0007] Furthermore, both the first braking mechanism and the second braking mechanism are pneumatic braking mechanisms.

[0008] Furthermore, the pneumatic braking mechanism includes a cylinder, a push rod, a first connecting rod, a second connecting rod, a first clamping rod, and a second clamping rod; the cylinder is fixedly mounted on the mounting base, and the push rod is connected to the piston rod end of the cylinder; one end of the first connecting rod is hinged to one end of the push rod, and one end of the second connecting rod is hinged to the other end of the push rod; one end of the first clamping rod is hinged to the mounting base, and one end of the second clamping rod is hinged to the mounting base; the other end of the first connecting rod is hinged to the middle of the first clamping rod, and the other end of the second connecting rod is hinged to the middle of the second clamping rod; the cylinder drives the push rod to move, and through the first and second connecting rods, drives the first and second clamping rods to rotate around their respective hinge points, so as to clamp or release the drive shaft.

[0009] Furthermore, the gear ring constitutes the power output end of the system, and its outer periphery is provided with external teeth for meshing with sprockets or gears of the transmission chain.

[0010] Furthermore, the number of planetary gears is three, and they are evenly distributed along the circumference of the planet carrier.

[0011] Furthermore, brake pads are fixedly embedded on the inner sidewalls of both the first and second clamping rods facing the drive shaft.

[0012] Compared with the prior art, the beneficial effects of this utility model are: Compared with existing technologies, this utility model, through the cooperation of dual drive mechanisms and dual braking mechanisms, allows for the switching of the other drive mechanism to work independently when any drive mechanism or its transmission component fails, by braking the corresponding transmission shaft. This eliminates the need to stop the stirring equipment, effectively solving the production interruption problem caused by downtime maintenance in existing single-power systems and achieving maintenance without stopping the machine. The planetary gear mechanism integrates the dual power sources, allowing adjustment of the output speed and torque of the two drive mechanisms according to actual needs, ensuring stable operation of the stirring mechanism and avoiding the impact of power fluctuations on the homogenization effect of the glass liquid. The structural design of each component is adapted to the high temperature and stable operation requirements in TFT LCD glass production, and the selection of braking and drive mechanisms (such as pneumatic braking and synchronous belt transmission) further improves the reliability and service life of the system. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the first structure of the dual-power drive system proposed in this utility model; Figure 2 This is a schematic diagram of the second structure of the dual-power drive system proposed in this utility model; Figure 3 This is a schematic diagram of the planetary gear mechanism in the dual-power drive system proposed in this utility model; Figure 4 An exploded view of the planetary gear mechanism in the dual-power drive system proposed in this utility model; Figure 5 This is a schematic diagram of the braking mechanism in the dual-power drive system proposed in this utility model.

[0014] In the diagram: 1-Mounting base, 2-First motor, 3-Second motor, 4-First driving wheel, 5-Second driving wheel, 6-First synchronous belt, 7-Second synchronous belt, 8-First drive shaft, 9-Planet carrier, 10-Planet gear, 11-Ring gear, 12-Pneumatic brake mechanism, 1201-Cylinder, 1202-Push rod, 1203-First connecting rod, 1204-Second connecting rod, 1205-First clamping rod, 1206-Second clamping rod, 13-Second drive shaft, 14-Sun gear, 15-First driven wheel, 16-Second driven wheel. Detailed Implementation

[0015] 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.

[0016] like Figures 1-5As shown, this embodiment provides a dual-power drive system, characterized in that it includes: Mounting base 1; A planetary gear mechanism includes a planet carrier 9, a sun gear 14, a ring gear 11, and multiple planet gears 10. The planet carrier 9 is coaxially and fixedly connected to a first drive shaft 8, which is rotatably mounted on a mounting base 1. The sun gear 14 is coaxially and fixedly connected to a second drive shaft 13, which is rotatably mounted on the mounting base 1. Multiple planet gears 10 are rotatably mounted on the planet carrier 9 and all mesh with the sun gear 14. The ring gear 11 is rotatably mounted on the mounting base 1 and meshes with the multiple planet gears 10. The first drive mechanism has its power output end connected to the first drive shaft 8 for driving the first drive shaft 8 to rotate. The second drive mechanism has its power output end connected to the second drive shaft 13 for driving the second drive shaft 13 to rotate. The first braking mechanism is mounted on the mounting base 1 and is disposed corresponding to the first transmission shaft 8, and is used to brake the first transmission shaft 8; The second braking mechanism is mounted on the mounting base 1 and is provided corresponding to the second drive shaft 13, and is used to brake the second drive shaft 13.

[0017] Overall, it includes mounting base 1, planetary gear mechanism, first drive mechanism, second drive mechanism, first braking mechanism and second braking mechanism.

[0018] In the planetary gear mechanism, the planet carrier 9 is rigidly connected to the first drive shaft 8, which is rotatably mounted on the mounting base 1 via bearings; the sun gear 14 is rigidly connected to the second drive shaft 13, which is rotatably mounted on the mounting base 1 via bearings; multiple planet gears 10 are evenly distributed around the planet carrier 9 via pins, and all mesh with the sun gear 14 and the gear ring 11; the gear ring 11 is rotatably mounted on the mounting base 1 via bearings, and its outer periphery serves as the system power output end connected to the stirring mechanism.

[0019] The first and second drive mechanisms can be driven directly by a motor or by a belt drive, and the first and second braking mechanisms can be mechanical or pneumatic brakes.

[0020] The dual-power system of the first and second drive mechanisms allows for multiple drive modes: the first drive mechanism and the second drive mechanism; the first drive mechanism driving alone; and the second drive mechanism driving alone.

[0021] The planet carrier 9 and the sun gear 14 are driven by dual drive mechanisms respectively. Power integration is achieved by utilizing the motion transmission characteristics of the planetary gear mechanism. When either drive mechanism fails, the corresponding transmission shaft can be braked to switch to the other drive mechanism to work independently, so as to achieve maintenance without stopping the machine and ensure production continuity.

[0022] When switching the power source from one drive mechanism to another, the speed of the running drive mechanism can be reduced by the control system while keeping the speed of the stirring mechanism constant. Then, the speed of the standby drive mechanism is controlled to compensate for the speed output of the internal gear ring 11 until the running drive mechanism stops and the standby drive mechanism reaches the operating speed. This measure improves the diversification of the drive source of the stirring mechanism, effectively reduces equipment risk, and improves the stability of operation.

[0023] like Figure 1 , Figure 2 and Figure 4 As shown, in this embodiment, the first drive mechanism includes a first motor 2, a first drive wheel 4, a first driven wheel 15, and a first synchronous belt 6; the first motor 2 is fixedly mounted on the mounting base 1, the first drive wheel 4 is mounted on the output end of the first motor 2, the first driven wheel 15 is coaxially fixedly connected to the first transmission shaft 8, and the first synchronous belt 6 is wrapped around and connected between the first drive wheel 4 and the first driven wheel 15. The second drive mechanism includes a second motor 3, a second drive wheel 5, a second driven wheel 16, and a second synchronous belt 7. The second motor 3 is fixedly mounted on the mounting base 1, the second drive wheel 5 is mounted on the output end of the second motor 3, the second driven wheel 16 is coaxially fixedly connected to the second transmission shaft 13, and the second synchronous belt 7 is wrapped around and connected between the second drive wheel 5 and the second driven wheel 16.

[0024] Specifically, the structures of the first and second drive mechanisms are defined as follows: The first drive mechanism includes a first motor 2, a first drive wheel 4, a first driven wheel 15, and a first synchronous belt 6. The first motor 2 is fixedly mounted on the mounting base 1 by bolts. The first drive wheel 4 is keyed to the output end of the first motor 2. The first driven wheel 15 is coaxially keyed to the first transmission shaft 8. The first synchronous belt 6 is wrapped around and connected between the first drive wheel 4 and the first driven wheel 15.

[0025] The second drive mechanism includes a second motor 3, a second drive wheel 5, a second driven wheel 16, and a second synchronous belt 7. The second motor 3 is fixedly mounted on the mounting base 1 by bolts. The second drive wheel 5 is keyed to the output end of the second motor 3. The second driven wheel 16 is coaxially keyed to the second transmission shaft 13. The second synchronous belt 7 is wrapped around and connected between the second drive wheel 5 and the second driven wheel 16.

[0026] The drive mechanism using synchronous belt drive offers smooth transmission, low noise, and a certain degree of buffering and vibration absorption, making it suitable for the stability requirements of equipment in TFT LCD glass production. At the same time, the synchronous belt drive has a simple structure, is easy to maintain, and further reduces the probability of failure.

[0027] like Figure 1 , Figure 2 and Figure 5 As shown, in this embodiment, both the first braking mechanism and the second braking mechanism are pneumatic braking mechanisms 12.

[0028] The pneumatic braking mechanism 12 includes a cylinder 1201, a push rod 1202, a first connecting rod 1203, a second connecting rod 1204, a first clamping rod 1205, and a second clamping rod 1206. The cylinder 1201 is fixedly mounted on the mounting base 1, and the push rod 1202 is connected to the piston rod end of the cylinder 1201. One end of the first connecting rod 1203 is hinged to one end of the push rod 1202, and one end of the second connecting rod 1204 is hinged to the other end of the push rod 1202. The first clamping rod 1205... One end of the first connecting rod 1203 is hinged to the mounting base 1, and one end of the second clamping rod 1206 is hinged to the mounting base 1; the other end of the first connecting rod 1203 is hinged to the middle of the first clamping rod 1205, and the other end of the second connecting rod 1204 is hinged to the middle of the second clamping rod 1206; the cylinder 1201 drives the push rod 1202 to move, and through the first connecting rod 1203 and the second connecting rod 1204, drives the first clamping rod 1205 and the second clamping rod 1206 to rotate around the corresponding hinge points, so as to tighten or loosen the drive shaft.

[0029] Specifically, both the first braking mechanism and the second braking mechanism are defined as pneumatic braking mechanisms 12, and their specific structures include: The system comprises a cylinder 1201, a push rod 1202, a first connecting rod 1203, a second connecting rod 1204, a first clamping rod 1205, and a second clamping rod 1206. The cylinder 1201 is fixedly mounted on the mounting base 1. The push rod 1202 is threadedly connected to the piston rod end of the cylinder 1201. One end of the first connecting rod 1203 is hinged to one end of the push rod 1202, and one end of the second connecting rod 1204 is hinged to the other end of the push rod 1202. One end of the first clamping rod 1205 is hinged to the mounting base 1 via a pin, and one end of the second clamping rod 1206 is hinged to the mounting base 1 via a pin. The other end of the first connecting rod 1203 is hinged to the middle of the first clamping rod 1205, and the other end of the second connecting rod 1204 is hinged to the middle of the second clamping rod 1206.

[0030] During operation, cylinder 1201 drives push rod 1202 to move radially along the transmission shaft, and through first connecting rod 1203 and second connecting rod 1204, drives first clamping rod 1205 and second clamping rod 1206 to rotate around the hinge point, thereby achieving clamping (braking) or releasing (releasing braking) of the transmission shaft.

[0031] The pneumatic braking mechanism 12 has a fast response speed, stable braking force and is easy to adjust. It can quickly realize the braking and release of the drive shaft, ensuring the timeliness and reliability of power switching. At the same time, the pneumatic drive method is suitable for industrial environments such as high temperature and dust, and has a long service life.

[0032] like Figures 1-2 As shown, in this embodiment, the gear ring 11 constitutes the power output end of the system, and its outer periphery is provided with external teeth for meshing with sprockets or gears of the transmission chain.

[0033] Specifically, the gear ring 11 constitutes the power output end of the system, and a sprocket for meshing with the transmission chain is provided on its outer periphery; power is transmitted through the cooperation of the sprocket and the chain, and the installation position of the stirring mechanism can be flexibly adjusted to adapt to different specifications of glass liquid stirring equipment; the sprocket drive has a strong load-bearing capacity, which is suitable for the load requirements when stirring glass liquid and ensures the stability of power transmission.

[0034] like Figures 3-4 As shown, in this embodiment, the number of planetary gears 10 is three, and they are evenly distributed along the circumference of the planet carrier 9.

[0035] Specifically, the number of planetary gears 10 is limited to three, and they are evenly distributed along the circumference of the planet carrier 9; The three planetary gears 10 are evenly distributed at 120° around the planet carrier 9, forming a force system similar to a "triangular stable structure". According to the principle of mechanics, the three evenly distributed support points can completely and evenly distribute the radial force transmitted by the sun gear 14, the reaction force transmitted by the ring gear 11, and the torque borne by the planet carrier 9 to each planetary gear 10 (each planetary gear 10 bears only 1 / 3 of the total load), which greatly reduces the contact stress and bending stress of a single gear and significantly improves the gear life and transmission reliability.

[0036] like Figure 5 As shown, in this embodiment, brake pads are fixedly embedded on the inner sidewalls of the first clamping rod 1205 and the second clamping rod 1206 facing the drive shaft.

[0037] Specifically, brake pads are fixedly embedded on the inner sidewalls of the first clamping rod 1205 and the second clamping rod 1206 facing the drive shaft. The brake pads are made of high-temperature resistant friction material. The brake pads can increase the friction between the clamping rod and the drive shaft and improve the braking effect. The selection of high-temperature resistant material can adapt to the high-temperature environment around the mixing equipment, avoid the braking performance from decreasing due to temperature rise, and ensure the reliability of the braking mechanism.

[0038] Of course, those skilled in the art will recognize that this invention is not limited to the details of the exemplary embodiments described above, but also includes the same or similar structures that can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0039] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0040] The technologies, shapes, and structures not described in detail in this utility model are all known technologies.

Claims

1. A dual-power drive system, characterized in that, include: Mounting base (1); A planetary gear mechanism includes a planet carrier (9), a sun gear (14), a ring gear (11), and multiple planet gears (10); the planet carrier (9) is coaxially fixedly connected to a first drive shaft (8), which is rotatably mounted on a mounting base (1); the sun gear (14) is coaxially fixedly connected to a second drive shaft (13), which is rotatably mounted on the mounting base (1); multiple planet gears (10) are rotatably mounted on the planet carrier (9) and all mesh with the sun gear (14); the ring gear (11) is rotatably mounted on the mounting base (1) and meshes with the multiple planet gears (10); The first drive mechanism has its power output end connected to the first drive shaft (8) for driving the first drive shaft (8) to rotate; The second drive mechanism has its power output end connected to the second drive shaft (13) for driving the second drive shaft (13) to rotate; The first braking mechanism is mounted on the mounting base (1) and is set corresponding to the first transmission shaft (8) for braking the first transmission shaft (8); The second braking mechanism is mounted on the mounting base (1) and is set corresponding to the second transmission shaft (13) for braking the second transmission shaft (13).

2. The dual-power drive system according to claim 1, characterized in that, The first drive mechanism includes a first motor (2), a first drive wheel (4), a first driven wheel (15), and a first synchronous belt (6); the first motor (2) is fixedly mounted on the mounting base (1), the first drive wheel (4) is mounted on the output end of the first motor (2), the first driven wheel (15) is coaxially fixedly connected to the first transmission shaft (8), and the first synchronous belt (6) is wrapped around and connected between the first drive wheel (4) and the first driven wheel (15); The second drive mechanism includes a second motor (3), a second drive wheel (5), a second driven wheel (16), and a second synchronous belt (7); the second motor (3) is fixedly mounted on the mounting base (1), the second drive wheel (5) is mounted on the output end of the second motor (3), the second driven wheel (16) is coaxially fixedly connected to the second transmission shaft (13), and the second synchronous belt (7) is connected around the second drive wheel (5) and the second driven wheel (16).

3. The dual-power drive system according to claim 1, characterized in that, Both the first braking mechanism and the second braking mechanism are pneumatic braking mechanisms (12).

4. The dual-power drive system according to claim 3, characterized in that, The pneumatic braking mechanism (12) includes a cylinder (1201), a push rod (1202), a first connecting rod (1203), a second connecting rod (1204), a first clamping rod (1205), and a second clamping rod (1206); the cylinder (1201) is fixedly mounted on the mounting base (1), and the push rod (1202) is connected to the piston rod end of the cylinder (1201); one end of the first connecting rod (1203) is hinged to one end of the push rod (1202), and one end of the second connecting rod (1204) is hinged to the other end of the push rod (1202); the first clamping rod (1205) is... One end of the first connecting rod (1205) is hinged to the mounting base (1), and one end of the second clamping rod (1206) is hinged to the mounting base (1); the other end of the first connecting rod (1203) is hinged to the middle of the first clamping rod (1205), and the other end of the second connecting rod (1204) is hinged to the middle of the second clamping rod (1206); the cylinder (1201) drives the push rod (1202) to move, and through the first connecting rod (1203) and the second connecting rod (1204), drives the first clamping rod (1205) and the second clamping rod (1206) to rotate around the corresponding hinge point, so as to tighten or loosen the drive shaft.

5. The dual-power drive system according to claim 1, characterized in that, The gear ring (11) constitutes the power output end of the system, and its outer periphery is provided with external teeth for meshing with sprockets or gears of the transmission chain.

6. The dual-power drive system according to claim 1, characterized in that, The number of planetary gears (10) is three, and they are evenly distributed along the circumference of the planet carrier (9).

7. The dual-power drive system according to claim 4, characterized in that, Brake pads are fixedly embedded on the inner sidewalls of the first clamping rod (1205) and the second clamping rod (1206) facing the drive shaft.

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