A drive transmission mechanism for battery casing production

Abstract

This utility model discloses a drive transmission mechanism for battery casing production. This mechanism is connected to a battery casing molding production line and includes a mounting platform. A power assembly is mounted at one end of the mounting platform. The output end of the power assembly is sequentially connected to a first transmission unit, a second transmission unit, and a third transmission unit. The first, second, and third transmission units are all connected to the actuators of the battery casing molding production line via telescopic couplings, and the rotational speeds of the first, second, and third transmission units are different from each other. This utility model, with its power assembly sequentially connecting the first, second, and third transmission units at different speeds, can simultaneously provide differentiated speed power to multiple actuators of the battery casing molding production line, such as the driving end of the molding die and the driving end of the conveying mechanism. This eliminates the need for multiple independent drive mechanisms, simplifies the overall structure of the production line, and reduces equipment investment costs.

Description

Technical Field

[0001] This utility model belongs to the field of battery manufacturing, specifically, it relates to a drive transmission mechanism for battery casing manufacturing. Background Technology

[0002] During the battery casing molding process, the production line needs to simultaneously drive multiple core actuators to work in coordination. These include the opening and closing drive of the battery casing stamping die, the rotation drive of the casing wall shaping mechanism, and the conveying drive of the finished product conveyor rollers. Due to functional differences, the power speed requirements of different actuators vary significantly. For example, the stamping die requires medium to high speeds to ensure molding efficiency, the conveyor rollers need to operate at low and stable speeds to avoid collisions with the battery casings, and the shaping mechanism requires specific speeds to ensure casing wall accuracy.

[0003] To meet the above-mentioned multi-speed requirements, the existing technology usually adopts the following solution: each actuator is equipped with an independent drive mechanism (including motor, reducer and transmission components), and differentiated power supply is achieved by independently controlling the output speed of each drive mechanism.

[0004] However, this solution has obvious drawbacks. The procurement and installation costs of multiple drive mechanisms are high, and each mechanism is scattered around the production line, which not only occupies a lot of workshop space, but also requires debugging and maintenance of each mechanism separately, resulting in a long equipment deployment cycle and a large workload of subsequent operation and maintenance. At the same time, when multiple mechanisms are running in tandem, speed synchronization deviations are prone to occur, affecting the stability of battery casing molding quality.

[0005] In view of the above, this application is hereby submitted. Utility Model Content

[0006] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a drive speed change mechanism for battery casing production. By setting different transmission parts, it can provide differentiated speed power to multiple execution parts of the battery casing molding production line, such as the mold driving end and the conveying mechanism driving end, without the need to configure multiple independent drive mechanisms, simplifying the overall structure of the production line and reducing equipment investment costs.

[0007] To achieve the above-mentioned technical objectives, the specific technical solution of this utility model is as follows:

[0008] A drive transmission mechanism for battery casing production, connected to a battery casing molding production line, includes an installation platform. A power assembly is installed at one end of the installation platform. The output end of the power assembly is sequentially connected to a first transmission unit, a second transmission unit, and a third transmission unit. The first transmission unit, the second transmission unit, and the third transmission unit are all connected to the actuators of the battery casing molding production line via telescopic couplings, and the rotational speeds of the first transmission unit, the second transmission unit, and the third transmission unit are different from each other.

[0009] Furthermore, the output end of the first transmission unit and the input end of the second transmission unit are connected by a transmission shaft.

[0010] And / or, the output end of the second transmission unit and the input end of the third transmission unit are connected by a transmission shaft.

[0011] Furthermore, a protective cover is installed on the mounting platform, covering the outside of the drive shaft.

[0012] Furthermore, the powertrain includes an asynchronous motor, the output of which is connected to the first transmission unit via a reducer and an initial coupling.

[0013] Furthermore, the reduction ratio of the reducer is 5.0 to 6.5.

[0014] Furthermore, the first transmission unit, the second transmission unit, and the third transmission unit each include at least two parallel gearboxes, and the gearboxes in the same transmission unit have the same speed ratio.

[0015] Furthermore, the speed ratio of the gearbox in the first transmission unit is 1.75 to 1.90;

[0016] The speed ratio of the gearbox in the second transmission unit is 1.91~2.00;

[0017] The speed ratio of the gearbox in the third transmission unit is 1.0~1.1.

[0018] Furthermore, heavy-duty feet are installed at the four corners of the bottom of the installation platform.

[0019] Furthermore, organic platform mounting bases are symmetrically installed on the two longitudinally opposite sides of the mounting platform.

[0020] Furthermore, the installation platform is equipped with at least four machine base mounting seats, and the four machine base mounting seats are respectively set close to the four heavy-duty feet at the bottom of the installation platform. Each machine base mounting seat is provided with a fixing hole for the ground fixing bolt to pass through.

[0021] After adopting the above technical solution, the drive transmission mechanism for battery casing production provided by this utility model has the following beneficial technical effects compared with the prior art:

[0022] (1) The structure of the first transmission unit, the second transmission unit and the third transmission unit are connected in sequence through the power assembly, and the three transmission units have different speeds. This structure can provide differentiated speed power for multiple execution components of the battery case forming production line, such as the mold driving end and the conveying mechanism driving end. It does not require additional configuration of multiple independent drive mechanisms, which simplifies the overall structure of the production line and reduces equipment investment costs.

[0023] (2) By covering the outside of the drive shaft with a protective cover, it can effectively prevent foreign objects such as dust, metal shavings, and coolant in the workshop from entering the mating part of the drive shaft and bearing, avoid wear and jamming of the drive shaft caused by foreign objects, maintain the transmission accuracy of the drive shaft, and reduce the equipment failure rate.

[0024] (3) By ensuring that the speed ratio of the gearboxes in the same transmission unit is consistent, the output speed of the transmission unit can be made uniform and stable, avoiding speed fluctuations caused by the speed ratio deviation of a single gearbox, ensuring the power accuracy transmitted to the execution components of the production line, and reducing battery casing molding defects caused by unstable speed.

[0025] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0026] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0027] In the attached diagram:

[0028] Figure 1 This is a front view schematic diagram of the present invention;

[0029] Figure 2 This is a top view of the present invention.

[0030] In the diagram: 1. Asynchronous motor; 2. First bolt; 3. Second bolt; 4. Reducer; 5. Initial coupling; 6. Mounting platform; 7. First transmission unit; 8. Chain coupling; 9. Second transmission unit; 10. Protective cover; 11. Drive shaft; 12. Third transmission unit; 13. Machine base; 14. Screw; 15. Heavy-duty foot; 16. Telescopic coupling.

[0031] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0033] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" 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. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0035] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0036] like Figure 1 and Figure 2 As shown, the present invention provides a drive transmission mechanism for battery casing production, which is connected to a battery casing molding production line. It includes a mounting platform 6, one end of which is equipped with a power assembly. The output end of the power assembly is sequentially connected to a first transmission unit 7, a second transmission unit 9, and a third transmission unit 12. The first transmission unit 7, the second transmission unit 9, and the third transmission unit 12 are all connected to the actuators of the battery casing molding production line through a telescopic coupling 16, and the rotational speeds of the first transmission unit 7, the second transmission unit 9, and the third transmission unit 12 are different from each other.

[0037] The drive transmission mechanism is connected in sequence to the first transmission unit 7, the second transmission unit 9, and the third transmission unit 12 through the powertrain. The structure of the three transmission units with different rotational speeds can provide differentiated speed power to multiple actuators in the battery casing molding production line, such as the mold driving end and the conveying mechanism driving end. This eliminates the need for multiple independent drive mechanisms, simplifies the overall structure of the production line, and reduces equipment investment costs.

[0038] The retractable coupling 16 can effectively compensate for installation errors between the transmission unit and the production line actuators, as well as thermal deformation displacement during operation. It avoids transmission jamming and component wear caused by shaft misalignment, improves transmission stability, and extends the service life of the mechanism and the production line actuators.

[0039] Specifically, the telescopic coupling 16 is a telescopic lightweight cross-shaft universal coupling. In use, the output end of the telescopic coupling 16 needs to be connected to each of the various actuators on the battery casing molding production line.

[0040] The output end of the first transmission unit 7 is connected to the input end of the second transmission unit 9 via a transmission shaft 11; and / or, the output end of the second transmission unit 9 is connected to the input end of the third transmission unit 12 via a transmission shaft 11. The option of setting transmission shafts 11 between any two transmission units or between any two of the three transmission units allows for flexible adjustment of the connection method according to the on-site layout and transmission distance requirements of the battery casing molding production line, adapting to different workshop space sizes and production line layouts, thus improving the versatility of the mechanism.

[0041] Furthermore, a protective cover 10 is installed on the mounting platform 6, covering the outside of the drive shaft 11. The cover effectively prevents foreign objects such as dust, metal shavings, and coolant from entering the mating part between the drive shaft 11 and the bearing, avoiding wear and jamming of the drive shaft 11 caused by foreign objects, maintaining the transmission accuracy of the drive shaft 11, and reducing the equipment failure rate.

[0042] The powertrain includes an asynchronous motor 1, the output of which is connected to the first transmission unit 7 via a reducer 4 and an initial coupling 5. Specifically, the asynchronous motor 1 is a three-phase asynchronous motor with variable frequency speed control.

[0043] The reducer 4 can reduce the output speed of the asynchronous motor 1 and amplify the torque, so that the power parameters can be accurately matched with the input requirements of the first transmission unit 7, avoiding transmission stall due to insufficient motor output torque or overload of the transmission unit due to excessive speed, and improving the adaptability of power transmission.

[0044] The initial coupling 5 can buffer the vibration and impact during the start-up and operation of the asynchronous motor 1, reduce the impact of vibration on the reducer 4 and the first transmission part 7, avoid loosening and wear of components due to vibration, and extend the overall service life of the powertrain and subsequent transmission parts.

[0045] As an embodiment of this application, the reduction ratio of the reducer 4 is in the range of 5.0 to 6.5.

[0046] Furthermore, the reduction ratio of the reducer 4 is 5.98, and the reducer 4 is specifically a helical gear reducer 4 with a connecting flange. The reducer 4 is fixedly connected to the flange by the first bolt 2, and then fixed to the mounting platform 6 by the second bolt 3.

[0047] The reducer can achieve precise matching of the output power of the asynchronous motor 1. It can amplify the output torque of the motor to the load level required by the first transmission part 7, avoiding low transmission efficiency caused by insufficient power. It can also adjust the speed to a range that matches the input speed of the first transmission part 7, preventing the transmission part from overheating and aggravating wear caused by excessive speed. (The reduction ratio of the reducer 4 can be adjusted according to the actual working conditions on site. This setting value is the most suitable value among the three subsequent transmission parts after testing.)

[0048] As an embodiment of this application, the first transmission unit 7, the second transmission unit 9, and the third transmission unit 12 each include at least two parallel transmission gearboxes, and the transmission gearboxes in the same transmission unit have the same speed ratio. The consistent speed ratio of the transmission gearboxes within the same transmission unit ensures uniform and stable rotational speed at the output end of the transmission unit, avoids speed fluctuations caused by deviations in the speed ratio of a single transmission gearbox, guarantees the power accuracy transmitted to the production line's execution components, and reduces battery casing molding defects (such as uneven wall thickness) caused by unstable rotational speed.

[0049] Furthermore, the gearboxes within the same transmission unit are connected by chain couplings 8. Chain couplings 8 are used because they possess a certain degree of flexibility, effectively absorbing displacements between adjacent gearboxes caused by installation errors (such as parallelism deviations or minor axial spacing deviations) or thermal deformation during operation. This avoids stress concentration in the shaft system caused by rigid connections, reduces abnormal wear on core components such as the gearbox output shaft and bearings, extends the overall service life of the gearbox, and lowers equipment maintenance costs.

[0050] Furthermore, the buffering characteristics of chain drives can alleviate the impact load during the start-up of the transmission gearbox or load fluctuations, preventing instantaneous impact forces from being directly transmitted to adjacent gearboxes. This prevents sudden changes in speed caused by power impacts, ensuring the synchronous and stable speed of each gearbox within the same transmission unit. This, in turn, guarantees the power accuracy transmitted to the execution components of the battery casing molding production line, reducing battery casing molding defects caused by speed fluctuations (such as uneven casing wall thickness and excessive edge burrs). Moreover, the chain coupling 8 has a simple structure and is easy to disassemble. When repairing or replacing the transmission gearbox, there is no need for significant positional adjustments to adjacent gearboxes; only the chain needs to be disassembled to separate the components, shortening downtime for maintenance. This adapts to the continuous operation requirements of the battery casing molding production line, improving the overall operating efficiency of the equipment.

[0051] As an embodiment of this application, the speed ratio range of the gearbox in the first transmission unit is 1.75 to 1.90; the speed ratio range of the gearbox in the second transmission unit is 1.91 to 2.00; and the speed ratio range of the gearbox in the third transmission unit is 1.0 to 1.1.

[0052] For example, the gearbox ratio in the first transmission unit 7 is 1.75; the gearbox ratio in the second transmission unit 9 is 1.91; and the gearbox ratio in the third transmission unit 12 is 1.0. This specific gear ratio combination is calculated and determined based on the maximum pipe diameter produced by the equipment and combined with the test results of on-site debugging. This gear ratio matching design ensures that the edge of the conveyor belt does not interfere with the upper roller shaft, and ensures that the upper roller shaft and the lower roller shaft have the same speed. It can make the output speed of each transmission unit highly matched with the parameter requirements of the battery case molding process, reduce the product defect rate caused by speed deviation, and improve the consistency of battery case molding quality.

[0053] As an embodiment of this application, the transmission gearbox in this embodiment is an adjustable speed ratio transmission gearbox. The speed ratio can be flexibly adjusted according to changes in battery casing production specifications (such as cylindrical battery casings of different diameters and heights, or square battery casings of different wall thicknesses). There is no need to disassemble and replace the transmission gearbox or core gear assembly. The output speed can be changed by adjusting the meshing position of the gears inside the transmission gearbox. This allows the transmission unit to quickly adapt to the power speed requirements of the forming process of new battery casing specifications, solving the problems of large spare parts reserves and cumbersome specification switching caused by the traditional fixed speed ratio transmission gearbox that requires one transmission gearbox for each specification.

[0054] Furthermore, when battery casing forming process parameters (such as stamping pressure and forming speed) need to be optimized and adjusted, precise matching of power output can be achieved by fine-tuning the transmission gearbox speed ratio, without the need to reselect or modify the entire drive mechanism, thus reducing the time cost of process optimization and equipment modification costs. This extends the overall life cycle of the drive transmission mechanism, improves the return on investment of equipment, and reduces production line downtime caused by replacing fixed-ratio transmission gearboxes, ensuring production continuity.

[0055] As an embodiment of this application, heavy-duty feet 15 are provided at the four corners of the bottom of the mounting platform 6. Furthermore, the heavy-duty feet 15 can be adjusted in height to adapt to different bottom surfaces. The use of heavy-duty feet 15 can also adapt to different ground environments in the workshop, avoiding misalignment of the drive shaft 11 system due to the tilt of the mounting platform, and reducing the risk of component wear.

[0056] Furthermore, machine platform fixing seats 13 are symmetrically installed on two longitudinally opposite sides of the mounting platform 6. The symmetrical arrangement of machine platform fixing seats 13 on both longitudinal sides of the mounting platform ensures that the fixing force of the fixing seats on the mounting platform is evenly distributed, avoiding uneven force and deformation of the mounting platform caused by unilateral fixing, maintaining the structural stability of the mounting platform, and ensuring the installation accuracy of the transmission components.

[0057] Furthermore, the mounting platform 6 is equipped with at least four machine base mounting seats 13. The machine base mounting seats 13 are fixed to the mounting platform 6 by at least one screw 14 (specifically, a fixing groove can be set on the machine base mounting seat 13 or the mounting platform to adjust the height of the machine base mounting seat 13 relative to the mounting platform 6). Preferably, three screws 14 are used for fixing, and the four machine base mounting seats 13 are respectively set close to the four heavy-duty feet 15 at the bottom of the mounting platform 6. Each machine base mounting seat 13 has a fixing hole for passing through the ground fixing bolt.

[0058] Four machine base mounting seats 13 are respectively set close to the heavy-duty feet 15 at the bottom of the mounting platform, so that the fixing points (machine base mounting seats 13) and the support points (i.e. the heavy-duty feet 15 mentioned above) correspond one-to-one, forming a cooperative structure of support and fixation. This avoids local stress concentration caused by misalignment of the fixing points and support points of the mounting platform, prevents deformation or cracking of the mounting platform, and improves structural reliability. The design of at least four mounting seats can further distribute the force on the mounting platform. Even in the scenario of long-term high-load operation of the equipment, the stability of the mounting platform can be maintained, avoiding equipment shaking caused by insufficient fixing points, and ensuring transmission accuracy and production safety.

[0059] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-mentioned technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A drive transmission mechanism for battery casing production, connected to a battery casing molding production line, characterized in that: The device includes an installation platform, one end of which is equipped with a powertrain. The output end of the powertrain is sequentially connected to a first transmission unit, a second transmission unit, and a third transmission unit. The first, second, and third transmission units are all connected to the actuators of the battery casing molding production line via telescopic couplings, and the rotational speeds of the first, second, and third transmission units are different from each other.

2. The drive transmission mechanism for battery casing production according to claim 1, characterized in that: The output end of the first transmission unit and the input end of the second transmission unit are connected by a transmission shaft. And / or, the output end of the second transmission unit and the input end of the third transmission unit are connected by a transmission shaft.

3. The drive transmission mechanism for battery casing production according to claim 2, characterized in that: A protective cover is installed on the mounting platform, and the protective cover covers the outside of the drive shaft.

4. The drive transmission mechanism for battery casing production according to claim 1, characterized in that: The powertrain includes an asynchronous motor, the output of which is connected to a first transmission unit via a speed reducer and an initial coupling.

5. The drive transmission mechanism for battery casing production according to claim 4, characterized in that: The reduction ratio of the speed reducer is 5.0 to 6.

5.

6. A drive transmission mechanism for battery casing production according to any one of claims 1-5, characterized in that: The first transmission unit, the second transmission unit, and the third transmission unit each include at least two parallel gearboxes, and the gearboxes in the same transmission unit have the same speed ratio.

7. The drive transmission mechanism for battery casing production according to claim 6, characterized in that: The speed ratio of the gearbox in the first transmission unit is 1.75 to 1.90; The speed ratio of the gearbox in the second transmission unit is 1.91 to 2.00; The speed ratio of the gearbox in the third transmission unit is 1.0 to 1.

1.

8. A drive transmission mechanism for battery casing production according to any one of claims 1-5, characterized in that: The installation platform is equipped with heavy-duty feet at the four corners of its bottom.

9. A drive transmission mechanism for battery casing production according to any one of claims 1-5, characterized in that: The mounting platform has symmetrically installed organic platform fixing seats on its two longitudinally opposite sides.

10. A drive transmission mechanism for battery casing production according to claim 9, characterized in that: The installation platform is equipped with at least four machine base mounting seats, and the four machine base mounting seats are respectively set close to the four heavy-duty feet at the bottom of the installation platform. Each machine base mounting seat is provided with a fixing hole for the ground fixing bolt to pass through.

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