Motor rotating shaft capable of suddenly stopping in case of electric leakage

Abstract

The utility model discloses a motor rotating shaft capable of suddenly stopping during electric leakage, and relates to the technical field of electric leakage protection. The motor rotating shaft capable of suddenly stopping in electric leakage comprises a motor main body, a rotating shaft main body is arranged in the motor main body, a suddenly stopping mechanism is arranged in the motor main body, the suddenly stopping mechanism comprises a connecting sleeve, the connecting sleeve is fixedly connected with a wire, and the wire is movably connected with a heating wire. A pneumatic tube is arranged in the motor main body, a sliding plate is slidably connected to the pneumatic tube, an extrusion block is fixedly connected to the sliding plate, a baffle is fixedly connected to the inner wall of the motor main body, and an emergency stop switch is arranged on the baffle. According to the motor rotating shaft capable of suddenly stopping in electric leakage, through the arrangement of the suddenly stopping mechanism, a heating wire can be heated through the combined action of a connecting sleeve and a wire after electric leakage of the rotating shaft main body occurs, so that a suddenly stopping switch is pressed through the combined action of an air pressure pipe, a sliding plate and an extrusion block, and the suddenly stopping effect is achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of leakage protection, in particular to a motor rotating shaft with leakage emergency stop. Background Art

[0002] The leakage emergency stop is a safety device that is used to detect leakage in the motor or equipment and quickly cut off the power supply to protect the safety of personnel and equipment. The leakage emergency stop related to the motor shaft is usually achieved by installing a leakage emergency stop button on the motor shaft.

[0003] Since the output shafts of most current motors are made of metal, there is a possibility of leakage. However, most current motor shafts do not have leakage protection measures, which may put workers in danger when using the motors. Therefore, a motor shaft with leakage emergency stop is needed. Utility Model Content

[0004] In view of the deficiencies of the prior art, the utility model provides a motor rotating shaft for emergency stop due to leakage, which solves the problems raised in the above background technology. To achieve the above purpose, the utility model is implemented through the following technical scheme: a motor rotating shaft for emergency stop due to leakage, comprising a motor body, a rotating shaft body is arranged inside the motor body, an emergency stop mechanism is arranged inside the motor body, the emergency stop mechanism comprises a connecting sleeve, the connecting sleeve is rotatably connected to the rotating shaft body, the connecting sleeve is fixedly connected to the inside of the motor body, the connecting sleeve is fixedly connected to a wire, the wire is movably connected to a heating wire, an air pressure tube is arranged inside the motor body, the air pressure tube is arranged above the heating wire, a slide plate is slidably connected to the inner wall of the air pressure tube, the slide plate is fixedly connected to an extrusion block, a baffle is fixedly connected to the inner wall of the motor body, an emergency stop switch is arranged on the baffle, and a reset component is arranged on the baffle.

[0005] Preferably, the connecting sleeve is shaped like a circular cylinder, and the inner diameter of the connecting sleeve is slightly larger than the outer diameter of the rotating shaft body. By setting the shape of the connecting sleeve, it is ensured that the connecting sleeve can contact different positions on the outer wall of the rotating shaft body at the same time, thereby ensuring the effect of timely feedback of leakage information.

[0006] Preferably, the outer wall of the air pressure tube is made of copper, and the inside of the air pressure tube is filled with a gas that expands when heated. By setting the material of the outer wall of the air pressure tube, it is ensured that the air pressure tube can quickly absorb heat after the heating wire generates heat, and by setting the gas that expands when heated, it is ensured that the gas can quickly expand after the temperature changes, thereby achieving the expected effect.

[0007] Preferably, the reset assembly includes a slide bar, which is slidably connected to the inner wall of the baffle, a spring is fixedly connected to the top of the slide bar, one end of the spring away from the slide bar is fixedly connected to the baffle, an alarm is provided on the outer wall of the motor body, and the switch of the alarm is provided on the baffle.

[0008] Preferably, the alarm uses a built-in battery, and the alarm is in an alarm state when the switch is pressed. By setting the built-in battery of the alarm, it is ensured that the alarm can work independently without relying on electricity generated by the power supply of the device.

[0009] Preferably, the side wall material of the slide bar is smooth, and the sum of the gravity of the slide bar and the elastic force of the spring is less than the pressure generated by the expansion of the gas in the air pressure tube. By comparing the sum of the gravity of the slide bar and the elastic force of the spring with the pressure generated by the expansion of the gas, it is ensured that the gas can push the slide bar to move after expansion, thereby achieving the expected effect.

[0010] The utility model provides a motor rotating shaft with an emergency stop function due to leakage, which has the following beneficial effects:

[0011] (1) The utility model provides an emergency stop mechanism, through the joint action of the connecting sleeve and the wire, so that the heating wire can be heated after the leakage phenomenon occurs on the rotating shaft body, so that the gas inside the air pressure tube expands, thereby pushing the slide plate, so that the extrusion block moves toward the side close to the emergency stop switch and squeezes the emergency stop switch, so that the rotating shaft body achieves the effect of leakage emergency stop.

[0012] (2) The utility model provides a reset assembly. After the heating wire stops heating, the air pressure in the air pressure tube is reduced by the rebound force of the spring. The slider can be reset under the drive of the spring. The alarm effect of the alarm can also be used to inform the staff of the internal situation of the motor body through the alarm when the heating wire has not cooled down after the rotating shaft body stops suddenly, thereby preventing the staff from being scalded during maintenance. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the three-dimensional appearance structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the front cross-sectional structure of the utility model;

[0015] Figure 3 For this utility model Figure 2 Schematic diagram of the structure of A;

[0016] Figure 4 This is a schematic diagram of the structure of the reset component of the utility model.

[0017] In the figure: 1. Motor body; 2. Rotating shaft body; 3. Emergency stop mechanism; 31. Connecting sleeve; 32. Wire; 33. Heating wire; 34. Air pressure tube; 35. Slide plate; 36. Extrusion block; 37. Baffle; 38. Emergency stop switch; 39. Reset assembly; 391. Slide bar; 392. Spring; 393. Alarm. DETAILED DESCRIPTION

[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0019] Embodiment 1

[0020] See also Figure 1-3 , a motor rotating shaft with leakage emergency stop, including a motor body 1, a rotating shaft body 2 is arranged inside the motor body 1, an emergency stop mechanism 3 is arranged inside the motor body 1, the emergency stop mechanism 3 includes a connecting sleeve 31, the connecting sleeve 31 is in the shape of a circular cylinder, and the inner diameter of the connecting sleeve 31 is slightly larger than the outer diameter of the rotating shaft body 2, by setting the shape of the connecting sleeve 31, it is ensured that the connecting sleeve 31 can contact different positions on the outer wall of the rotating shaft body 2 at the same time, so as to ensure the effect of timely feedback of leakage information, the connecting sleeve 31 is rotatably connected to the rotating shaft body 2, the connecting sleeve 31 is fixedly connected to the inside of the motor body 1, the connecting sleeve 31 is fixedly connected to a wire 32, the wire 32 is movably connected to a heating wire 33, an air pressure tube 34 is arranged inside the motor body 1, the outer wall material of the air pressure tube 34 is copper, and the inside of the air pressure tube 34 is filled with a gas that is easily expanded when heated, and by setting the outer wall material of the air pressure tube 34, it is ensured that The air pressure tube 34 can quickly absorb heat after the heating wire 33 generates heat, and through the setting of the gas that is easily expanded by heat, it is ensured that the gas can quickly expand after the temperature changes, so as to achieve the expected effect. The air pressure tube 34 is arranged above the heating wire 33, and a slide plate 35 is slidably connected to the inner wall of the air pressure tube 34, and an extrusion block 36 is fixedly connected to the slide plate 35. A baffle 37 is fixedly connected to the inner wall of the motor body 1, and an emergency stop switch 38 is arranged on the baffle 37. A reset component 39 is arranged on the baffle 37. Through the joint action of the connecting sleeve 31 and the wire 32, the heating wire 33 can be heated after the leakage phenomenon occurs on the rotating shaft body 2, so that the gas inside the air pressure tube 34 expands, thereby pushing the slide plate 35, so that the extrusion block 36 moves toward the side close to the emergency stop switch 38, and squeezes the emergency stop switch 38, so that the rotating shaft body 2 achieves the effect of leakage emergency stop.

[0021] During use, when the rotating shaft body 2 produces leakage, since the rotating shaft body 2 is in contact with the connecting sleeve 31, the connecting sleeve 31 is energized, and since the connecting sleeve 31 is connected to the wire 32, the wire 32 is energized, and since the wire 32 is connected to the heating wire 33, the heating wire 33 is energized at this time and generates heat after being energized. When the heating wire 33 is heated, the gas inside the air pressure tube 34 expands due to the heat, thereby increasing the pressure inside the air pressure tube 34. At this time, the slide plate 35 moves toward the side close to the emergency stop switch 38 under the action of the air pressure, thereby driving the extrusion block 36 to move toward the side close to the emergency stop switch 38, so that the extrusion block 36 squeezes the emergency stop switch 38 during the movement. At this time, since the emergency stop switch 38 is squeezed, the equipment stops running and the rotating shaft body 2 stops running.

[0022] Embodiment 2

[0023] See also Figure 1-4 On the basis of the first embodiment, the reset component 39 includes a slide bar 391, the slide bar 391 is slidably connected to the inner wall of the baffle 37, a spring 392 is fixedly connected to the top of the slide bar 391, the side wall material of the slide bar 391 is smooth, and the sum of the gravity of the slide bar 391 and the elastic force of the spring 392 is less than the pressure generated by the expansion of the gas in the air pressure tube 34. By comparing the sum of the gravity of the slide bar 391 and the elastic force of the spring 392 with the pressure generated by the expansion of the gas, it is ensured that the gas can push the slide bar 391 to move after expansion, thereby achieving the expected effect. The end of the spring 392 away from the slide bar 391 is fixedly connected to the baffle 37, and an alarm 393 is arranged on the outer wall of the motor body 1. The alarm 393 adopts a built-in Battery, and the alarm 393 is in alarm state when the switch is pressed. By setting the built-in battery of the alarm 393, it is ensured that the alarm 393 can work independently without relying on the electricity generated by the power supply of the equipment. The switch of the alarm 393 is set on the baffle 37. Through the rebound force of the spring 392, the air pressure in the air pressure tube 34 is reduced after the heating wire 33 stops heating, and the slide bar 391 can be reset under the drive of the spring 392. Through the alarm effect of the alarm 393, when the heating wire 33 has not cooled down after the rotating shaft body 2 stops, the staff can know the internal situation of the motor body 1 through the alarm 393, so as to achieve the effect of preventing the staff from being scalded during maintenance.

[0024] During use, based on the first embodiment, when the power of the device is turned off, the heating wire 33 cannot heat up by itself. When the heating wire 33 cools down, the gas inside the air pressure tube 34 contracts. At this time, the slide bar 391 is automatically reset under the drive of the spring 392, thereby pushing the extrusion block 36, and the slide plate 35 is reset by the reset of the extrusion block 36. When the power of the device is stopped suddenly, but the heating wire 33 has not cooled down, at this time, since the gas inside the air pressure tube 34 is still heated, the air pressure can still push the slide plate 35, so that the slide plate 35 drives the extrusion block 36 to be in a higher position inside the air pressure tube 34. At this time, the slide bar 391 squeezes the switch of the alarm 393 under the squeezing action of the extrusion block 36, so that the alarm 393 is in an on state, so that the staff can know the internal situation of the motor body 1 through the alarm 393, thereby preventing the staff from being scalded during maintenance.

[0025] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A motor shaft for emergency stop due to leakage, comprising a motor body (1), characterized in that: A rotating shaft body (2) is arranged inside the motor body (1), and an emergency stop mechanism (3) is arranged inside the motor body (1); The emergency stop mechanism (3) comprises a connecting sleeve (31), the connecting sleeve (31) being rotatably connected to the rotating shaft body (2), the connecting sleeve (31) being fixedly connected to the inside of the motor body (1), the connecting sleeve (31) being fixedly connected to a wire (32), the wire (32) being movably connected to a heating wire (33), an air pressure tube (34) being arranged inside the motor body (1), the air pressure tube (34) being arranged above the heating wire (33), a slide plate (35) being slidably connected to the inner wall of the air pressure tube (34), the slide plate (35) being fixedly connected to an extrusion block (36), a baffle plate (37) being fixedly connected to the inner wall of the motor body (1), an emergency stop switch (38) being arranged on the baffle plate (37), and a reset component (39) being arranged on the baffle plate (37).

2. The motor rotating shaft with leakage emergency stop according to claim 1, characterized in that: The connecting sleeve (31) is in the shape of a circular cylinder, and the inner diameter of the connecting sleeve (31) is slightly larger than the outer diameter of the rotating shaft body (2).

3. The motor rotating shaft with leakage emergency stop according to claim 2, characterized in that: The outer wall of the air pressure tube (34) is made of copper, and the interior of the air pressure tube (34) is filled with a gas that expands when heated.

4. The motor rotating shaft with leakage emergency stop according to claim 3, characterized in that: The reset assembly (39) comprises a slide bar (391), the slide bar (391) being slidably connected to the inner wall of the baffle (37), a spring (392) being fixedly connected above the slide bar (391), one end of the spring (392) away from the slide bar (391) being fixedly connected to the baffle (37), an alarm (393) being arranged on the outer wall of the motor body (1), and a switch of the alarm (393) being arranged on the baffle (37).

5. The motor rotating shaft with leakage emergency stop according to claim 4, characterized in that: The alarm (393) uses a built-in battery, and the alarm (393) is in an alarm state when a switch is pressed.

6. The motor rotating shaft with leakage emergency stop according to claim 5, characterized in that: The side wall of the slide bar (391) is made of smooth material, and the sum of the gravity of the slide bar (391) and the elastic force of the spring (392) is less than the pressure generated by the expansion of the gas in the air pressure tube (34).

Images