Flywheel torque increasing system

Abstract

The utility model provides a flywheel torque increasing system which comprises a driving motor and a cutting head, and the driving motor is in transmission connection with the cutting head and used for driving the cutting head to rotate. One end, far away from the cutting head, of the driving motor is also connected with a torque increasing device; the torque increasing device comprises a machine shell and a flywheel, the machine shell is connected to the driving motor, the flywheel is rotatably connected into the machine shell, and the driving motor is in transmission connection with the flywheel and used for driving the flywheel to rotate. The torque increasing device is connected to the driving motor, the driving motor drives the cutting head to rotate and simultaneously drives the flywheel in the torque increasing device to rotate, the flywheel is equivalent to an energy storage mechanism and can store huge rotational inertia, and when the cutting head encounters rock resistance, the flywheel releases energy, so that the instantaneous torque of the cutting head is increased; the torque of the driving motor can be several times of the torque of the driving motor, so that the cutting head operates at a constant rotating speed, the cutting head is prevented from being blocked and stopped, the working efficiency is improved, and the cutting head works more smoothly.

Description

Technical Field

[0001] The utility model relates to the technical field of transmission devices, in particular to a flywheel torque increasing system. Background Art

[0002] Roadheaders are large-scale machines used for tunneling in coal and non-coal mines. Their cutting mechanism is the primary working component, consisting primarily of a cutting head and a hydraulic motor. The hydraulic motor acts as a power output, transmitting power to the cutting head, which then rotates to cut coal and rock.

[0003] However, during actual operation, you may encounter some hard rock. When the cutting drum of the cutting head contacts the rock, the resistance will increase instantly, which will cause the hydraulic motor to reduce speed or even jam, seriously affecting the progress of the work. In addition, when encountering a drastic change in resistance, the hydraulic pressure of the hydraulic motor will become unstable, causing vibration in the system and shortening the service life of the equipment. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the above-mentioned prior art and provide a flywheel torque increasing system which can instantly increase the torque to avoid the cutting head from being stuck.

[0005] The technical solution of the present utility model is to provide a flywheel torque-increasing system with the following structure: it includes a driving motor and a cutting head, the driving motor is connected to the cutting head in a transmission manner, and is used to drive the cutting head to rotate; the end of the driving motor away from the cutting head is also connected to a torque-increasing device; the torque-increasing device includes a casing and a flywheel, the casing is connected to the driving motor, the flywheel is rotatably connected in the casing, and the driving motor is connected to the flywheel in a transmission manner, and is used to drive the flywheel to rotate.

[0006] After adopting the above structure, the flywheel torque increasing system of the utility model has the following advantages compared with the existing technology:

[0007] The utility model connects a torque increasing device to a driving motor. When driving the cutting head to rotate, the driving motor drives a flywheel in the torque increasing device to rotate. The flywheel is equivalent to an energy storage mechanism and can store huge rotational inertia. When the cutting head encounters rock resistance, the flywheel releases energy to increase the instantaneous torque of the cutting head, which can reach several times the torque of the driving motor, so that the cutting head maintains a constant speed, avoids the cutting head from getting stuck, improves work efficiency, and makes the cutting head work more smoothly.

[0008] In existing designs, the hydraulic pressure of the hydraulic motor typically fluctuates between approximately 3500 psi (maximum under load) and 1000 psi (under no-load conditions). With the addition of the torque multiplier 3, the hydraulic pressure can be maintained within a constant range of approximately 2000-2500 psi, regardless of load conditions. Therefore, the present invention can also reduce system vibration by stabilizing the hydraulic pressure, reducing fatigue of hydraulic components (such as hoses, pumps, motors, and valves) caused by pressure fluctuations, and reducing the incidence of failures.

[0009] Preferably, the torque increasing device further comprises a speed increasing gear set, which is disposed within the housing and is in transmission connection with the drive motor and the flywheel, for increasing the speed of the flywheel. The speed increasing gear set can further increase the speed of the flywheel, allowing the flywheel to store more kinetic energy.

[0010] Preferably, the speed-increasing gear set includes a first speed-increasing gear and a second speed-increasing gear. The first speed-increasing gear is rotatably connected within the housing, and the second speed-increasing gear is disposed on the rotating shaft of the flywheel. The first speed-increasing gear is respectively in transmission connection with the drive motor and the second speed-increasing gear. The first speed-increasing gear has an outer diameter larger than that of the second speed-increasing gear and meshes with the second speed-increasing gear to increase the speed of the flywheel.

[0011] Preferably, the speed-increasing gear set further includes a speed-increasing idler gear, which is disposed between the drive motor and the first speed-increasing gear and is in transmission connection with the drive motor and the first speed-increasing gear, respectively. The speed-increasing idler gear is in transmission connection with the speed-increasing gear shaft of the first speed-increasing gear, and the outer diameter of the speed-increasing idler gear is larger than the outer diameter of the speed-increasing gear shaft of the first speed-increasing gear, thereby further increasing the speed of the flywheel.

[0012] Preferably, two support frames are provided within the housing, symmetrically arranged and extending along the length of the housing; the speed-increasing idler gear, the first speed-increasing gear, and the second speed-increasing gear are rotatably connected to the support frames and positioned between the two support frames, with the flywheel positioned outside the two support frames. This allows the speed-increasing gear set to be separated from the flywheel, reducing the risk of malfunction.

[0013] Preferably, there are two flywheels, which are symmetrically arranged in the housing. The two symmetrical flywheels will be more stable when rotating, avoiding vibration of the device.

[0014] Preferably, a plurality of cutting drums are distributed on the cutting head, an output wheel is provided in the cutting head, and the output wheel is transmission-connected to the driving wheel of the driving motor via an idler wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a structural diagram of the present utility model.

[0016] Figure 2 for Figure 1 A partial enlarged view of .

[0017] Description of reference numerals:

[0018] 1. Drive motor, 2. Cutting head, 21. Cutting drum, 22. Output wheel, 3. Torque increasing device, 31. Casing, 311. Support frame, 32. Flywheel, 33. Speed increasing gear set, 331. First speed increasing gear, 332. Second speed increasing gear, 333. Speed increasing idler wheel. DETAILED DESCRIPTION

[0019] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0020] In the description of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. At the same time, the terms "first", "second", etc. are only used to distinguish the names of the components, and there is no primary and secondary relationship, and therefore cannot be understood as a limitation on the present invention.

[0021] like Figure 1 and Figure 2 As shown;

[0022] The utility model discloses a flywheel torque-increasing system, which comprises a driving motor 1 and a cutting head 2, wherein an output wheel 22 is provided in the cutting head 2, and a plurality of cutting drums 21 which are driven by the output wheel 22 are distributed on the cutting head 2; the driving motor 1 is a hydraulic motor, and the driving wheel of the hydraulic motor is connected to the output wheel 22 of the cutting head 2 through an idler wheel, so as to drive the cutting drums 21 on the cutting head 2 to rotate.

[0023] The end of the driving motor 1 away from the cutting head 2 is also connected to a torque increasing device 3; the torque increasing device 3 includes a casing 31 and a flywheel 32, the casing 31 is connected to the driving motor 1, and the flywheel 32 is rotatably connected in the casing 31. The driving motor 1 is connected to the flywheel 32 for driving the flywheel 32 to rotate.

[0024] The utility model connects the torque increasing device 3 to the driving motor 1. When driving the cutting head 2 to rotate, the driving motor 1 also drives the flywheel 32 in the torque increasing device 3 to rotate. The flywheel 32 is equivalent to an energy storage mechanism and can store huge rotational inertia. When the cutting head 2 encounters rock resistance, the flywheel 32 releases energy to increase the instantaneous torque of the cutting head 2, which can reach several times the torque of the driving motor 1, so that the cutting head 2 maintains a constant speed, avoids the cutting head 2 from getting stuck, improves work efficiency, and makes the cutting head 2 work more smoothly.

[0025] In existing designs, the hydraulic pressure of the hydraulic motor typically fluctuates between approximately 3500 psi (maximum under load) and 1000 psi (under no-load conditions). With the addition of the torque multiplier 3, the hydraulic pressure can be maintained within a constant range of approximately 2000-2500 psi, regardless of load conditions. Therefore, the present invention can also reduce system vibration by stabilizing the hydraulic pressure, reducing fatigue of hydraulic components (such as hoses, pumps, motors, and valves) caused by pressure fluctuations, and reducing the incidence of failures.

[0026] The torque increasing device 3 further includes a speed increasing gear set 33 . The speed increasing gear set 33 is disposed in the housing 31 and is in transmission connection with the drive motor 1 and the flywheel 32 for increasing the rotational speed of the flywheel 32 .

[0027] The speed-increasing gear set 33 includes a first speed-increasing gear 331 and a second speed-increasing gear 332. The first speed-increasing gear 331 is rotatably connected to the housing 31, and the second speed-increasing gear 332 is disposed on the rotating shaft of the flywheel 32. The first speed-increasing gear 331 is in driving connection with the drive motor 1, and the second speed-increasing gear 332 is in driving connection with the flywheel 32. The first speed-increasing gear 331 has a larger outer diameter than the second speed-increasing gear 332 and meshes with the second speed-increasing gear 332 to increase the speed of the flywheel 32.

[0028] The speed-increasing gear set 33 also includes a speed-increasing idler gear 333, which is disposed between the drive motor 1 and the first speed-increasing gear 331 and is in transmission connection with the drive motor 1 and the first speed-increasing gear 331, respectively. The speed-increasing idler gear 333 is in transmission connection with the speed-increasing gear shaft of the first speed-increasing gear 331, and the outer diameter of the speed-increasing idler gear 333 is larger than the outer diameter of the speed-increasing gear shaft of the first speed-increasing gear 331, thereby further increasing the rotational speed of the flywheel 32.

[0029] The speed-increasing gear set 33 can further increase the rotation speed of the flywheel 32 , allowing the flywheel 32 to store more kinetic energy.

[0030] Two support frames 311 are symmetrically arranged within the housing 31 and extend along the length of the housing 31. An idler gear 333, a first speed-increasing gear 331, and a second speed-increasing gear 332 are rotatably connected to the support frames 311 and positioned between the two support frames 311. The flywheel 32 is positioned outside the two support frames 311. This separates the speed-increasing gear set 33 from the flywheel 32, reducing the risk of malfunction.

[0031] There are two flywheels 32, which are symmetrically arranged in the housing 31. The two symmetrical flywheels 32 are more stable when rotating, avoiding vibration of the device.

[0032] The above is only a specific implementation method of the present invention, but the scope of protection of the present invention is not limited to this. Any changes or replacements that can be easily thought of by any technician familiar with this technical field within the technical scope disclosed in the present invention should be included in the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be based on the scope of protection of the claims.

Claims

1. A flywheel torque increasing system, comprising a drive motor (1) and a cutting head (2), wherein the drive motor (1) is in transmission connection with the cutting head (2) and is used to drive the cutting head (2) to rotate; and is characterized in that: The end of the drive motor (1) away from the cutting head (2) is also connected to a torque increasing device (3); the torque increasing device (3) comprises a housing (31) and a flywheel (32); the housing (31) is connected to the drive motor (1); the flywheel (32) is rotatably connected in the housing (31); the drive motor (1) is transmission-connected to the flywheel (32) for driving the flywheel (32) to rotate.

2. The flywheel torque increasing system according to claim 1, characterized in that: The torque increasing device (3) further comprises a speed increasing gear set (33), which is arranged in the housing (31) and is in transmission connection with the drive motor (1) and the flywheel (32) for increasing the rotation speed of the flywheel (32).

3. The flywheel torque increasing system according to claim 2, characterized in that: The speed-increasing gear set (33) comprises a first speed-increasing gear (331) and a second speed-increasing gear (332). The first speed-increasing gear (331) is rotatably connected to the housing (31), and the second speed-increasing gear (332) is arranged on the rotating shaft of the flywheel (32). The first speed-increasing gear (331) is respectively connected to the driving motor (1) and the second speed-increasing gear (332).

4. The flywheel torque increasing system according to claim 3, characterized in that: The speed-increasing gear set (33) further includes a speed-increasing idler gear (333), which is arranged between the drive motor (1) and the first speed-increasing gear (331) and is respectively in transmission connection with the drive motor (1) and the first speed-increasing gear (331).

5. The flywheel torque increasing system according to claim 4, characterized in that: Two support frames (311) are provided in the casing (31), and the two support frames (311) are symmetrically arranged and extend along the length direction of the casing (31); the speed-increasing idler (333), the first speed-increasing gear (331) and the second speed-increasing gear (332) are rotatably connected to the support frames (311) and are located between the two support frames (311); and the flywheel (32) is arranged outside the two support frames (311).

6. The flywheel torque increasing system according to claim 1, characterized in that: There are two flywheels (32) symmetrically arranged in the casing (31).

7. The flywheel torque increasing system according to claim 1, characterized in that: A plurality of cutting drums (21) are distributed on the cutting head (2), an output wheel (22) is provided inside the cutting head (2), and the output wheel (22) is connected to the driving wheel of the driving motor (1) through an idler wheel.

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