A high-power transmission device

Abstract

This utility model relates to the field of transmission device technology, specifically to a high-power transmission device, including a base, a drive motor with its fixed end mounted on the base, a motor pulley mounted on the output end of the drive motor, a support base mounted on the base, a flywheel shaft rotatably mounted on the support base, a main transmission component between one end of the flywheel shaft and the motor pulley, an output pulley mounted on the other end of the flywheel shaft, secondary transmission components respectively mounted between the output pulley and two external saw blade shafts, and a flywheel mounted on the flywheel shaft. A clutch assembly is provided between the flywheel and the flywheel shaft to increase the rotational inertia of the flywheel shaft, thereby increasing the output torque of the output pulley. This effectively improves the output torque and reduces the impact on the torque of the two saw blade shafts, thus meeting the output requirements under high-power cutting conditions and reducing the occurrence of cutting efficiency decline.

Description

Technical Field

[0001] This utility model relates to the field of transmission device technology, and specifically to a high-power transmission device. Background Technology

[0002] A transmission device is an intermediate device placed between a power source (such as a motor) and a working mechanism. It transmits the motion and power output from the power source to the working mechanism and can change the speed, torque, or motion pattern to adapt to the functional requirements of the working mechanism. In machine tools, the transmission device is a core component connecting the motor and the saw blade shaft, enabling the cutting function.

[0003] In high-power machine tools, cutting machine tools with dual saw blade axes are widely used. They utilize the rotation of two saw blades to cut the workpiece. Traditional transmission devices, such as... Figure 6 As shown, the system includes a machine tool body 1', two transmission discs 2' mounted on the machine tool body 1' and fixedly connected to two saw blade shafts, two drive motors 3' mounted on the machine tool body 1', two output discs 4' mounted at the output ends of the two drive motors 3', and two transmission belts 5' positioned between the two output discs 4' and the two transmission discs 2'. The two drive motors 3' independently drive the corresponding output discs 4' to rotate, and the transmission belts 5' drive the two transmission discs 2' and the saw blade shafts to rotate, thereby achieving workpiece cutting through the rotating saw blades.

[0004] However, the aforementioned traditional dual-motor drive device has obvious technical shortcomings: the two motors and their matching drive control system increase the equipment cost and consume a lot of energy; more importantly, if it is simply replaced by a single motor driving the two saw blade shafts at the same time, the torque distributed to the two working shafts will be significantly reduced due to the fixed output power of the motor, making it difficult to meet the output requirements under high-power cutting conditions, resulting in a decrease in cutting efficiency or even failure to operate normally.

[0005] Therefore, how to effectively increase the output torque to ensure sufficient cutting power while using a single motor to drive a dual saw blade shaft has become a technical problem that urgently needs to be solved in this field. Utility Model Content

[0006] The purpose of this invention is to provide a high-power transmission device that addresses the shortcomings and deficiencies of existing technologies.

[0007] To achieve the above objectives, the present invention adopts the following technical solution: a high-power transmission device, comprising a base; and a drive motor with its fixed end disposed on the base; A motor pulley is disposed on the output end of the active motor; A support seat is provided on the base; Rotate the flywheel shaft mounted on the support base; A main transmission component disposed between one end of the flywheel shaft and the motor pulley, which drives the flywheel shaft to rotate synchronously when the output end of the active motor rotates; The output pulley is located at the other end of the flywheel shaft; A secondary transmission component is respectively disposed between the output pulley and the two external saw blade shafts to synchronously drive the two external saw blade shafts to rotate when the flywheel shaft rotates; The flywheel mounted on the flywheel shaft is used to rotate with the flywheel shaft when the output end of the active motor drives the flywheel shaft to rotate, so as to increase the rotational inertia of the flywheel shaft and thus increase the output torque of the output pulley. A clutch assembly is provided between the flywheel and the flywheel shaft. When the active motor drives the flywheel shaft to rotate, the flywheel is engaged with the flywheel shaft so that the flywheel rotates with the flywheel shaft, increasing the rotational inertia of the flywheel shaft. When the active motor stops driving the flywheel shaft to rotate, the flywheel is disengaged from the flywheel shaft so that the flywheel releases its rotational inertia and idles on the flywheel shaft.

[0008] A further improvement is the use of an electromagnetic clutch or one-way bearing located between the flywheel and the flywheel shaft.

[0009] A further improvement is that the main transmission component includes a main pulley disposed at one end of the flywheel shaft and a main transmission belt disposed between the main pulley and the motor pulley for driving the main pulley to rotate synchronously when the motor pulley rotates.

[0010] A further improvement is that the auxiliary transmission component includes two saw shaft pulleys respectively disposed on the two external saw blade shafts, and two auxiliary transmission belts respectively disposed between the output pulley and the two saw shaft pulleys for driving the two saw shaft pulleys to rotate synchronously when the output pulley rotates.

[0011] A further improvement is that the support base is provided in two parts, the flywheel shaft is rotatably mounted on the two support bases, and the flywheel is located between the two support bases.

[0012] A further improvement is that the flywheel shaft and the support base are connected by a bearing.

[0013] The beneficial effects of this utility model after adopting the above technical solution are as follows: When it is necessary to control the rotation of the two saw blade shafts, the active motor drives the motor pulley to rotate, while the main transmission component drives the flywheel shaft to rotate synchronously. At this time, the auxiliary transmission component synchronously drives the two external saw blade shafts to rotate. During the process of the active motor driving the flywheel shaft to rotate, the clutch assembly engages the flywheel with the flywheel shaft, causing the flywheel to rotate together, thereby increasing the rotational inertia of the flywheel shaft and thus improving the output torque of the output pulley, which can meet the output requirements under high-power cutting conditions. When the saw blade needs to stop rotating urgently, the active motor's control over the motor pulley is turned off. When the flywheel is engaged, the clutch assembly disengages it from the flywheel shaft, allowing the flywheel to release its rotational inertia and idle on the flywheel shaft. This prevents the flywheel from rotating the saw blade shaft due to inertia and causing an accident. Even with a fixed output power of a single drive motor, the energy stored in the flywheel reduces the impact on the torque of the two saw blade shafts. Compared to the traditional method of using two motors to drive two saw blade shafts separately, this application only requires a single motor to achieve the traditional dual-motor drive method. Furthermore, by cooperating with the flywheel and clutch assembly, the output power of a single drive motor is increased, saving energy and reducing equipment operating costs. Attached Figure Description

[0014] 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 these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the structure of this utility model from another perspective; Figure 3 This is a top view of the present invention; Figure 4 This is a cross-sectional view of the flywheel shaft, flywheel, and electromagnetic clutch in this utility model; Figure 5 This is a cross-sectional view of the flywheel shaft, flywheel, and one-way bearing in this utility model; Figure 6 This is a schematic diagram of the transmission device of a cutting machine tool in the prior art.

[0016] Explanation of reference numerals in the attached diagram: 1. Base; 2. Active motor; 3. Motor pulley; 4. Support seat; 5. Flywheel shaft; 6. Output pulley; 7. Flywheel; 8. Clutch assembly; 81. Electromagnetic clutch; 82. One-way bearing; 9. Main pulley; 10. Main drive belt; 12. Saw shaft pulley; 13. Secondary drive belt. Detailed Implementation

[0017] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments.

[0018] See Figures 1 to 5 As shown, the technical solution adopted in this specific embodiment is: a high-power transmission device, including a base 1; a drive motor 2 with its fixed end mounted on the base 1; a motor pulley 3 mounted on the output end of the drive motor 2; a support base 4 mounted on the base 1; a flywheel shaft 5 rotatably mounted on the support base 4; a main transmission component mounted between one end of the flywheel shaft 5 and the motor pulley 3 for synchronously driving the flywheel shaft 5 to rotate when the output end of the drive motor 2 rotates; an output pulley 6 mounted on the other end of the flywheel shaft 5; and two external saw blade shafts respectively mounted between the output pulley 6 and the two external saw blade shafts for synchronously driving the two external saw blades when the flywheel shaft 5 rotates. A secondary transmission component for shaft rotation; a flywheel 7 mounted on the flywheel shaft 5, used to follow the rotation of the flywheel shaft 5 when the output end of the active motor 2 drives the flywheel shaft 5 to rotate, thereby increasing the rotational inertia of the flywheel shaft 5 and thus increasing the output torque of the output pulley 6; a clutch assembly 8 is provided between the flywheel 7 and the flywheel shaft 5, used to engage the flywheel 7 with the flywheel shaft 5 when the active motor 2 drives the flywheel shaft 5 to rotate, so that the flywheel 7 follows the rotation of the flywheel shaft 5 and increases the rotational inertia of the flywheel shaft 5, and disengage the flywheel 7 from the flywheel shaft 5 when the active motor 2 stops driving the flywheel shaft 5 to rotate, so that the flywheel 7 releases its rotational inertia on the flywheel shaft 5 and idles.

[0019] After experimental comparison, the flywheel 7 of this application is used in conjunction with a single motor drive. Because the flywheel 7 is driven by the flywheel shaft 5 to generate energy storage, when a single active motor outputs about 175kw of power, the output pulley 6 can reach about 208kw of power due to the energy storage of the flywheel. Compared with the method of directly using dual motor drive, about one-third of the electrical energy can be saved.

[0020] The fixed end of the active motor 2 is secured to the base 1 with bolts. The motor pulley 3 is fixedly connected to the output end (rotation shaft) of the active motor 2. The support base 4 is welded or bolted to the base 1. The active motor 2 can preferably be a servo motor, or other rotary motors.

[0021] An electromagnetic clutch 81 or a one-way bearing 82 is installed between the flywheel 7 and the flywheel shaft 5. The electromagnetic clutch 81 transmits or disconnects power using the principle of electromagnetic induction. The electromagnetic clutch 81 is electrically connected to the controller of the drive motor 2. When the controller controls the drive motor 2 to rotate, the electromagnetic clutch 81 is simultaneously energized, causing the electromagnetic coil to generate a magnetic field, which attracts the armature to the friction plate of the rotor through electromagnetic attraction. At this time, the flywheel shaft 5 and the flywheel 7 are rigidly connected, and power is transmitted from the motor to the flywheel 7. When the controller controls the drive motor 2 to stop rotating, the electromagnetic clutch 81 is simultaneously de-energized. After the electromagnetic coil is de-energized, the magnetic field disappears, the attraction disappears, and the armature disengages from the rotor. At this time, the flywheel shaft 5 and the flywheel 7 are completely separated, and the flywheel 7 can freely rotate on the flywheel shaft 5 after the motor stops.

[0022] A one-way bearing (82) is a basic mechanical component that can only transmit power in one direction. It contains rollers, needle rollers, or balls, and the shape of the rolling element allows it to rotate freely in one direction while locking in the other. There are typically two types of core structures: Ramp and roller type: The inner ring has a ramp, and the rollers are located on the ramp. When rotating clockwise, the rollers are on the downhill side (large space, free rotation); when rotating counterclockwise, the rollers are on the uphill side (narrow space, locked).

[0023] Wedge type: A set of cam wedges is set between the inner and outer rings, with the major diameter greater than the spacing (locked) and the minor diameter less than the spacing (free rotation).

[0024] In this application, when the active motor 2 drives the flywheel shaft 5 to rotate in the forward direction, the rollers are wedged and locked, and the inner and outer rings are rigidly connected, thereby driving the flywheel 7 to rotate synchronously, which is equivalent to the engagement state of the electromagnetic clutch 81. When the active motor 2 stops rotating, the stopped flywheel shaft 5 will not drive the rollers to form a wedged and locked state, and the speed of the flywheel 7 will exceed that of the flywheel shaft 5, entering the "overtaking" state (disengagement). The flywheel 7 spins freely but will not drive the flywheel shaft 5 to rotate.

[0025] The main transmission component includes a main pulley 9 located at one end of the flywheel shaft 5, and a main transmission belt 10 located between the main pulley 9 and the motor pulley 3, for synchronously driving the main pulley 9 to rotate when the motor pulley 3 rotates. The main pulley 9 is fixedly connected to one end of the flywheel shaft 5. The main pulley 9 and the motor pulley 3 are V-belt pulleys, and the main transmission belt 10 is a V-belt; or the main pulley 9 and the motor pulley 3 are multi-ribbed pulleys, and the main transmission belt 10 is a multi-ribbed belt. The main pulley 9 and the motor pulley 3 can also be other transmission pulley structures.

[0026] The auxiliary transmission component includes two saw shaft pulleys 12 respectively mounted on the two external saw blade shafts, and two auxiliary transmission belts 13 respectively mounted between the output pulley 6 and the two saw shaft pulleys 12, for synchronously driving the two saw shaft pulleys 12 to rotate when the output pulley 6 rotates. The output pulley 6 is fixedly connected to the other end of the flywheel shaft 5. The output pulley 6 and the saw shaft pulleys 12 are V-belt pulleys, and the auxiliary transmission belts 13 are V-belts; or the output pulley 6 and the saw shaft pulleys 12 are multi-ribbed pulleys, and the auxiliary transmission belts 13 are multi-ribbed belts. The output pulley 6 and the saw shaft pulleys 12 can also be other transmission pulley structures. Figure 1 and Figure 3 As shown, the two auxiliary drive belts 13 are arranged alternately.

[0027] There are two support bases 4, the flywheel shaft 5 is rotatably mounted on the two support bases 4, and the flywheel 7 is located between the two support bases 4.

[0028] By mounting the flywheel 7 between the two support seats 4 and at the center position close to the flywheel shaft 5, the rotational inertia of the flywheel 7 can be improved to transmit power to the flywheel shaft 5. Compared with the flywheel shaft 5 being mounted at the front and rear ends, the wobbling of the flywheel shaft 5 can be further reduced.

[0029] The flywheel shaft 5 and the support base 4 are connected by a bearing.

[0030] The working principle of this utility model is as follows: The active motor 2 drives the motor pulley 3 to rotate, which in turn drives the main pulley 9 to rotate via the main transmission belt 10. This, in turn, drives the flywheel shaft 5 to rotate synchronously. The flywheel shaft 5 drives the output pulley 6 to rotate synchronously. At the same time, the two auxiliary transmission belts 13 drive the two saw shaft pulleys 12 to rotate synchronously. During the rotation of the flywheel shaft 5 driven by the active motor 2, the clutch assembly 8 engages the flywheel 7 with the flywheel shaft 5, causing the flywheel 7 to rotate together. This increases the rotational inertia of the flywheel shaft 5, thereby increasing the output torque of the output pulley 6, which can meet the output requirements under high-power cutting conditions. When the saw blade needs to stop rotating urgently, the active motor 2 is shut off. As the pulley 3 rotates, the clutch assembly 8 disengages the flywheel 7 from the flywheel shaft 5, allowing the flywheel 7 to release its rotational inertia and idle on the flywheel shaft 5. This prevents the flywheel 7 from driving the saw blade shaft through inertia and causing an accident. Even with a fixed output power of the single active motor 2, the energy stored in the flywheel 7 can reduce the impact on the torque of the two saw blade shafts. Compared with the traditional method of using two motors to drive the two saw blade shafts separately, this application only needs to use a single motor to achieve the traditional dual-motor drive method. By cooperating with the flywheel 7 and the clutch assembly 8, the output power of the single active motor 2 is increased, saving energy and reducing equipment operating costs.

[0031] This utility model aims to protect the structure of the product. The model numbers of the components are not the focus of this utility model's protection, as they are common technology. Any component on the market that can achieve the functions described above can be used as a high-power transmission device. Therefore, the model numbers and other parameters of the components are not described in detail in this utility model. The contribution of this utility model lies in the scientific combination of the various components.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions provided are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents. Any aspects of this utility model not detailed herein are well-known to those skilled in the art.

Claims

1. A high-power transmission device, characterized in that: Including the base; An active motor with its fixed end mounted on the base; A motor pulley is disposed on the output end of the active motor; A support seat is provided on the base; Rotate the flywheel shaft mounted on the support base; A main transmission component, located between one end of the flywheel shaft and the motor pulley, is used to drive the flywheel shaft to rotate synchronously when the output end of the active motor rotates. The output pulley is located at the other end of the flywheel shaft; A secondary transmission component is respectively disposed between the output pulley and the two external saw blade shafts to synchronously drive the two external saw blade shafts to rotate when the flywheel shaft rotates; The flywheel mounted on the flywheel shaft is used to rotate with the flywheel shaft when the output end of the active motor drives the flywheel shaft to rotate, so as to increase the rotational inertia of the flywheel shaft and thus increase the output torque of the output pulley. A clutch assembly is provided between the flywheel and the flywheel shaft. When the active motor drives the flywheel shaft to rotate, the flywheel is engaged with the flywheel shaft so that the flywheel rotates with the flywheel shaft, increasing the rotational inertia of the flywheel shaft. When the active motor stops driving the flywheel shaft to rotate, the flywheel is disengaged from the flywheel shaft so that the flywheel releases its rotational inertia and idles on the flywheel shaft.

2. The high-power transmission device according to claim 1, characterized in that: The clutch assembly is an electromagnetic clutch or a one-way bearing disposed between the flywheel and the flywheel shaft.

3. The high-power transmission device according to claim 1, characterized in that: The main transmission component includes a main pulley disposed at one end of the flywheel shaft and a main transmission belt disposed between the main pulley and the motor pulley for driving the main pulley to rotate synchronously when the motor pulley rotates.

4. A high-power transmission device according to claim 1, characterized in that: The auxiliary transmission component includes two saw shaft pulleys respectively disposed on the two external saw blade shafts, and two auxiliary transmission belts respectively disposed between the output pulley and the two saw shaft pulleys for driving the two saw shaft pulleys to rotate synchronously when the output pulley rotates.

5. A high-power transmission device according to claim 1, characterized in that: The support base is provided in two parts, the flywheel shaft is rotatably mounted on the two support bases, and the flywheel is located between the two support bases.

6. A high-power transmission device according to claim 1 or 5, characterized in that: The flywheel shaft is connected to the support base via a bearing.

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