Skid torsion protection device

Abstract

The utility model discloses a slip torsion protection device which comprises a turbine disc, a transmission shaft, a driving gear, a transmission disc and an adjusting piece, and the transmission shaft is sleeved with the slip torsion protection device from the rear portion of the transmission shaft. The turbine disc adjusting device further comprises a locking nut, the locking nut is screwed at the rear end of the transmission shaft and tightly presses the adjusting piece, and the locking nut is used for fixing the transmission shaft and the turbine disc into a whole. A first annular wall is arranged on the front end face of the turbine disc in a protruding mode, and part of the transmission disc enters the first annular wall and abuts against the front end face of the turbine disc. According to the utility model, a bidirectional elastic area can be formed through pre-tightening of the adjusting nut and the adjusting piece, so that the device is ensured to be stably driven during overload; the oil storage cavity structure formed between the transmission disc and the turbine disc is suitable for various oil storage quantities, and the structural strength is prevented from being excessively weakened.

Description

Technical Field

[0001] This utility model relates to the field of toilet accessories, specifically to a slippage torque protection device used on a toilet lid clutch. Background Technology

[0002] Existing electric flip cover actuators mainly include a motor, a reduction mechanism, and an actuator. The actuator is connected to the cover and achieves the flipping and closing action by reducing torque under the power of the motor. In actual use, if the device is overloaded (i.e., the rotational force of the driven part is too large), the DC motor will stall, and the motor current will remain at the limit, which will cause the motor to burn out and fail. Alternatively, the internal torque of the device may suddenly increase, resulting in actuator failure or damage to the transmission gears, making it impossible to use normally again.

[0003] In existing technologies, overload protection is generally achieved using a clutch device. That is, when the geared motor is running normally, if the output end is subjected to a reverse driving force exceeding the allowable value, the transmission system will disengage to prevent damage to the gears when they are subjected to too much impact.

[0004] A utility model patent application with patent number "CN202221896904.3" entitled "A Clutch Device" discloses a slippage torque protection device, which includes a transmission gear and a transmission shaft that can be connected to the transmission gear. The device is characterized by further including: a transmission disc fixed to the transmission shaft; and a clamping mechanism for clamping the transmission gear onto the transmission disc, which at least includes a locking member threadedly connected to the transmission shaft and an adjustment unit disposed between the locking member and the transmission gear. This provides a clutch device that allows for convenient adjustment of the clutch force, and also has higher wear resistance and a longer service life.

[0005] However, the above structure still has defects. Specifically, the locking force cannot be adjusted, which is not conducive to flexible adjustment; and after the transmission system is disengaged, the friction between the transmission disc and the transmission gear is too great, which can easily cause damage.

[0006] For the reasons mentioned above, it is necessary to improve the existing technology. Utility Model Content

[0007] I. Technical problems to be solved

[0008] This utility model addresses the aforementioned deficiencies in the existing technology by proposing a slippage torque protection device to solve the problems mentioned in the background art.

[0009] II. Technical Solution

[0010] To solve the above-mentioned technical problems, this utility model provides a slippage torque protection device, comprising:

[0011] A turbine disk, wherein a through hole is provided in the middle of the turbine disk;

[0012] A drive shaft with a drive gear fixed at its end and a thread formed on the rear shaft body of the drive shaft, the drive shaft passing through a through hole in the middle of the turbine disk;

[0013] A transmission disc is fixed on the transmission shaft, and the front end face of the transmission disc abuts against the rear end of the drive gear. An annular groove is provided on the rear end face of the transmission disc.

[0014] An adjusting element is fitted onto the drive shaft from the rear.

[0015] Also includes:

[0016] A locking nut is screwed onto the rear end of the drive shaft and presses the adjusting component into place. The locking nut is used to fix the drive shaft and the turbine disk together.

[0017] The turbine disk has a first annular wall protruding from its front end face. The shape of the first annular wall matches the shape of the transmission disk. A portion of the transmission disk enters the first annular wall and presses against the front end face of the turbine disk.

[0018] The adjusting component includes a first butterfly spring, a second butterfly spring, and a washer arranged sequentially.

[0019] The turbine disk has multiple oil storage grooves on its front end face, which extend from the position along the through hole to the position where they connect with the first annular wall.

[0020] The turbine disk has a second annular wall protruding from its rear end face, and the turbine teeth of the turbine disk are formed on the second annular wall. When the locking nut fixes the drive shaft and the turbine disk together, the adjusting member is located inside the cavity formed by the second annular wall.

[0021] III. Beneficial Effects

[0022] Compared with the prior art, this utility model has the following advantages: This utility model can form a bidirectional elastic zone by adjusting the nut and adjusting parts to ensure that the device is stable when overloaded; the oil storage cavity (injected with lubricating oil) structure formed between the transmission disc and the turbine disc can adapt to various oil storage volumes and avoid excessive weakening of structural strength. Attached Figure Description

[0023] Figure 1 This is an exploded view of the present invention.

[0024] Figure 2 This is a three-dimensional structural diagram of the drive shaft.

[0025] Figure 3 This is a front view schematic diagram of the turbine disk.

[0026] Figure 4 This is a three-dimensional structural diagram of the turbine disk viewed from the rear.

[0027] Figure 5 This is a three-dimensional structural diagram of the present invention. Detailed Implementation

[0028] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but should not be used to limit the scope of this utility model.

[0029] Please see Figure 1-5 A slippage torque protection device, comprising:

[0030] Turbine disk 1, wherein a through hole 100 is provided in the middle of the turbine disk 1;

[0031] A drive shaft 2 has a drive gear 3 fixed at its end. A thread is formed on the rear shaft body 20 of the drive shaft 2. The drive shaft 2 passes through the through hole 100 in the middle of the turbine disk 1.

[0032] The transmission disc 4 is fixed on the transmission shaft 2, and the front end face of the transmission disc 4 abuts against the rear end face of the drive gear 3. An annular groove 40 is provided on the rear end face of the transmission disc 4.

[0033] Adjustment component 5 is sleeved on the drive shaft from the rear of the drive shaft 2.

[0034] It also includes a locking nut 6, which is screwed onto the rear end of the drive shaft 2 and presses the adjusting member 5. The locking nut 6 is used to fix the drive shaft 2 and the turbine disk 1 into one piece.

[0035] In the above structure, a two-way elastic zone can be formed by adjusting the pre-tightening of the adjusting nut and adjusting component to ensure stable operation of the device under overload; the oil storage chamber (injected with lubricating oil) structure formed between the transmission disc and the turbine disc can accommodate various oil storage volumes and avoid excessive weakening of structural strength.

[0036] The adjusting component 5 includes a first butterfly spring 51, a second butterfly spring 52 and a washer 50 arranged in sequence. In the above structure, the first butterfly spring 51 and the second butterfly spring 52 are arranged symmetrically opposite each other. After pre-tightening, they form a bidirectional elastic zone to ensure that the device can slip stably when overloaded.

[0037] Specifically, multiple oil storage grooves 13 are provided on the front end face of the turbine disk 1. The oil storage grooves 13 extend from the position along the through hole 100 to the position connected with the first annular wall 11. The oil storage grooves 13 are used to make the grease evenly distributed on them, so that the lubricating oil forms a gradient distribution under the action of centrifugal force and gravity, which not only meets the lubrication requirements under high load conditions, but also avoids oil leakage under low load conditions.

[0038] The turbine disk 1 has a second annular wall 12 protruding on its rear end face. The turbine teeth of the turbine disk 1 are formed on the second annular wall 12. When the locking nut 6 fixes the drive shaft 2 and the turbine disk 1 into one piece, the adjusting member 5 is located inside the cavity formed by the second annular wall 12.

[0039] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the technical principles of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

Claims

1. A slippage torque protection device, comprising: Turbine disk (1), wherein a through hole (100) is provided in the middle of the turbine disk (1); A drive shaft (2) has a drive gear (3) fixed at its end. A thread is formed on the rear shaft body (20) of the drive shaft (2). The drive shaft (2) passes through the through hole (100) in the middle of the turbine disk (1). The transmission disc (4) is fixed on the transmission shaft (2), and the front end face of the transmission disc (4) abuts against the rear end of the drive gear (3). An annular groove (40) is provided on the rear end face of the transmission disc (4). Adjusting element (5) is sleeved on the drive shaft from the rear of the drive shaft (2); Its characteristic is that it further includes: Locking nut (6), the locking nut (6) is screwed onto the rear end of the drive shaft (2) and presses the adjusting member (5) together. The locking nut (6) is used to fix the drive shaft (2) and the turbine disk (1) into one piece. The turbine disk (1) has a first annular wall (11) protruding on its front end surface. The shape of the first annular wall (11) matches the shape of the transmission disk (4). A portion of the transmission disk (4) enters the first annular wall (11) and presses against the front end surface of the turbine disk (1).

2. The slippage torque protection device as described in claim 1, characterized in that: The adjusting component (5) includes a first butterfly spring (51), a second butterfly spring (52), and a washer (50) arranged in sequence.

3. The slippage torque protection device as described in claim 1, characterized in that: Multiple oil storage grooves (13) are provided on the front end face of the turbine disk (1), and the oil storage grooves (13) extend from the position along the through hole (100) to the position connected with the first annular wall (11).

4. The slippage torque protection device as described in claim 1, characterized in that: The turbine disk (1) has a second annular wall (12) protruding on its rear end face. The turbine teeth of the turbine disk (1) are formed on the second annular wall (12). When the locking nut (6) fixes the drive shaft (2) and the turbine disk (1) into one piece, the adjusting member (5) is located inside the cavity formed by the second annular wall (12).

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