CN219058221U - Manual leveling device of elevator - Google Patents

Abstract

The utility model discloses a manual elevator leveling device, which comprises a motor bracket, a clutch arranged at the top end of the motor bracket, a motor in the motor bracket and a first belt pulley, wherein when the device is electrified and works, the motor can drive an elevator motor to rotate so as to enable a lift car to descend to a proper position; when the device is powered down and the elevator motor is running, the elevator motor rotation does not cause the motor to rotate. The device has reasonable structural design, small volume, simple structure, convenient installation and low manufacturing cost, can increase the leveling speed of the elevator, saves more labor and is convenient for maintenance of the elevator. When the elevator does not correctly stop at the floor position and needs to be leveled, only the switch is needed to be controlled manually, and the elevator leveling speed can be increased and the elevator leveling device is more labor-saving and convenient to maintain.

Description

Manual leveling device of elevator

Technical Field

The utility model relates to the technical field of elevator safety, in particular to a manual leveling device for an elevator.

Background

In recent years, with the advancement of town and the improvement of living standard of residents, an elevator has become an indispensable vertical transportation means in production and living of common people. The market demand prediction and investment opportunity analysis report prospective of the national elevator industry in 2015-2020 published by the prospective industry research institute shows that the total yield of the national elevator in 2013 reaches 57.97 ten thousand, the same ratio is increased by 9.58%, china becomes the country with the highest global elevator yield, and the specific gravity exceeds 60% of the global total. From 2009 to 2013, the annual average increase rate of the elevator output in China reaches 21.96 percent.

With the explosive growth of elevators, there is a concomitant high rise in elevator accidents. Then when the elevator fails or malfunctions, it is not just stopped at the stopping position of the floor, we need to lower the elevator to the stopping position of the next floor to open the elevator car or repair, and when these situations occur, most of the current situations are to use a tool to manually rotate the motor shaft to lower the car, thereby causing the car to move down to the floor landing, the speed of manual lowering is relatively slow because the rotation of the motor shaft slows down the car by the gearbox of the motor, and the manual rotation of the motor is laborious and laborious.

Disclosure of Invention

The utility model aims to provide a manual leveling device for an elevator, which can increase the leveling speed of the elevator and save more labor when the elevator does not correctly stop at the floor position and needs leveling, thereby being convenient for maintenance of the elevator.

In order to achieve the above purpose, the technical scheme of the utility model provides a manual elevator leveling device, which comprises a motor support and a clutch arranged at the top end of the motor support, wherein a motor is arranged in the motor support, a coupler for connecting the motor and the clutch is arranged at the top end of the elevator motor, the first belt pulley and an outer ring of the clutch share a belt, the first belt pulley is driven to rotate by the belt when the clutch rotates, and the motor is externally connected with a power supply.

Further, the clutch is an electromagnetic clutch, and the electromagnetic clutch is externally connected with a power supply.

Further, the electromagnetic clutch structure comprises a second belt pulley with a circle of grooves at the bottom, an electromagnet embedded in the grooves at the bottom of the second belt pulley, and an electromagnet attraction piece arranged at the top of the second belt pulley.

Further, in the clutch structure, the electromagnet attracting piece and the second belt pulley are spaced by 1mm in the vertical direction.

Further, the electromagnet attraction piece comprises a rotating shaft piece, an attraction piece and a spring piece connected with the rotating shaft piece and the attraction piece.

Further, the rotating shaft piece comprises a circular disc and a rotating shaft arranged at the center of the circular disc, a through hole penetrating through the center of the circular disc and the center of the rotating shaft is formed in the center of the rotating shaft piece, an inner shaft is sleeved in the through hole of the rotating shaft, and the inner shaft is fixedly connected with the rotating shaft piece through a screw.

Further, the second pulley is provided with a second pulley through hole, an inner surface of the second pulley through hole is attached to an outer surface of the outer shaft, and an inner surface of the outer shaft is attached to an outer surface of the inner shaft.

Further, the shaft coupling is connected with a motor shaft on the motor and the inner shaft, and the motor shaft and the inner shaft are fixed by adopting screws.

In conclusion, the device disclosed by the utility model has the advantages of reasonable structural design, small volume, simple structure, convenience in installation and low manufacturing cost, and can be used for increasing the leveling speed of an elevator and saving more labor, so that the elevator is convenient to maintain.

Drawings

Fig. 1 is a schematic perspective view of a manual leveling device for an elevator according to the present utility model;

fig. 2 is a top view of a manual leveling device for an elevator of the present utility model;

fig. 3 is a longitudinal cross-sectional view of an elevator manual leveling apparatus of the present utility model taken along line A-A of fig. 2;

FIG. 4 is a schematic exploded view of the clutch of the present utility model;

FIG. 5 is a side cross-sectional view of the clutch of the present utility model;

FIG. 6 is a schematic perspective view of an electromagnet pull-in tab of the present utility model;

reference numerals illustrate: 1-a motor bracket; 2-clutch, 201-electromagnet attraction piece, 2011-rotating shaft piece, 2012-attraction piece, 2013-spring piece, 202-inner shaft, 203-second belt pulley, 204-electromagnet, 205-outer shaft; 3-a belt; 4-a first pulley; 5-motor; 6-shaft coupling.

Detailed Description

The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the drawings in the embodiments of the present utility model, but the scope of protection of the present utility model is not limited.

In the present utility model, for a clearer description, the following description is made: the observer views fig. 1 with the front left side of the observer set to the front, the rear right side of the observer set to the rear, the rear left side of the observer set to the left, the front right side of the observer set to the right, the upper side of the observer set to the upper side, and the lower side of the observer set to the lower side, and it should be noted that the terms "front end", "rear end", "left side", "right side", "middle", "upper", "lower", etc. in this text indicate orientations or positional relationships based on the orientations or positional relationships set in the drawings, and are merely for convenience of clearly describing the present utility model, but do not indicate or imply that the structures or components to be referred to must have specific orientations, be constructed in specific orientations, and therefore should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," "fourth" and the like are used for clarity or to simplify the description, and are not to be construed as indicating or implying a relative importance or quantity.

Referring to fig. 1 to 5, the present embodiment provides a manual leveling device for an elevator, including a motor bracket 1 and a clutch 2 disposed at the top end of the motor bracket 1, wherein a motor 5 and a coupling 6 connecting the motor 5 and the clutch 2 are disposed inside the motor bracket 1, a first belt pulley 4 is disposed at the top end of the elevator motor, the first belt pulley 4 and an outer ring of the clutch 2 share a belt 3, the clutch 2 drives the first belt pulley 4 to rotate through the belt 3 when rotating, and the motor 5 is externally connected with a power supply. When the motor 5 is electrified to work, the motor 5 rotates to drive the clutch 2 to rotate, and the clutch 2 rotates to drive the first belt pulley 4 to rotate through the belt 3, so that the elevator motor shaft is driven to rotate, and the elevator car is lowered to a proper position.

Specifically, the clutch 2 is an electromagnetic clutch, and the electromagnetic clutch is externally connected with a power supply.

Specifically, the electromagnetic clutch structure comprises a second belt pulley 203 with a circle of grooves at the bottom, an electromagnet 204 embedded in the grooves at the bottom of the second belt pulley 203, and an electromagnet attracting piece 201 arranged at the top of the second belt pulley 203, wherein the electromagnet 204 is electrified to generate magnetism. Referring to fig. 6, the electromagnet actuation tab 201 includes a rotation shaft tab 2011, an actuation tab 2012, and a spring tab 2013 connecting the rotation shaft tab 2011 and the actuation tab 2012.

Specifically, in the structure of the clutch 2, the electromagnet attracting piece 201 is spaced apart from the second pulley 203 by 1mm in the vertical direction. So when the elevator motor is running, the elevator motor rotates to drive the first belt pulley 4 to rotate, the first belt pulley 4 rotates to drive the second belt pulley 203 to rotate, and the electromagnet attracting piece 201 is not influenced by the rotation of the second belt pulley 203 because the electromagnet attracting piece 201 and the second belt pulley 203 are separated by 1mm in the vertical direction. The interval of 1mm is only preferable, the test decision can be made according to actual use, a proper electromagnet can be selected, the electromagnet attracting piece 201 can be attracted by magnetism when the electromagnet 204 is electrified and is clung to the second belt pulley 203, the effect that the electromagnet attracting piece 201 rotates to drive the second belt pulley 203 to rotate is achieved, and when the clutch 2 is powered off and the elevator motor runs, the rotation of the second belt pulley 203 does not influence the electromagnet attracting piece 201.

Specifically, the rotating shaft sheet 2011 includes a disc and a rotating shaft disposed at the center of the disc, a through hole passing through the disc and the center of the rotating shaft is disposed at the center of the rotating shaft sheet 2011, the inner shaft 202 is sleeved in the through hole of the rotating shaft, the inner shaft 202 is fixedly connected with the rotating shaft sheet 2011 through a screw, the top of the rotating shaft sheet 2011 is provided with a screw which is fixed downwards from the top of the inner shaft 202, and the electromagnet attraction sheet 201 is fixedly connected with the inner shaft 202. The coupling 6 connects a motor shaft on the motor 5 with the inner shaft 202, and the motor shaft and the inner shaft 202 are fixed by screws.

Specifically, each spring piece 2013 is fixed by two screws, one screw is fixed to one end of the spring piece 2013 from the disc of the rotating shaft piece 2011, and the other screw is fixed to the engaging piece 2012 from the spring piece 2013.

When the clutch 2 is powered off and the elevator motor runs, the elevator motor rotates to drive the first belt pulley 4 to rotate, the first belt pulley 4 rotates to drive the second belt pulley 203 to rotate, the electromagnet attracting piece 201 and the second belt pulley 203 are separated by 1mm in the vertical direction, the electromagnet attracting piece 201 is not affected by the rotation of the second belt pulley 203, the electromagnet attracting piece 201 is fixedly connected with the inner shaft 202, the inner shaft 202 is fixedly connected with the motor shaft, and the second belt pulley 203 does not drive the motor 5 to rotate. When the clutch 2 is powered off and the elevator motor is running, the elevator motor does not cause the motor 5 to rotate, the motor 5 and the elevator motor are separated and do not interfere with each other, and one shaft rotates and the other shaft does not rotate.

When the clutch 2 and the motor 5 are electrified to work, the motor shaft is fixedly connected with the inner shaft 202 by adopting screws, so that the motor 5 rotates to drive the electromagnet attraction piece 201 to rotate; because the electromagnet 204 has magnetism when being electrified, the electromagnet 204 attracts the electromagnet attracting piece 201 when being electrified, under the action of magnetic attraction, the attracting piece 2012 on the electromagnet attracting piece 201 presses down the spring, the attracting piece 2012 moves down to be closely attached to the second belt pulley 203, the electromagnet attracting piece 201 rotates to drive the second belt pulley 203 to rotate, the second belt pulley 203 rotates to drive the first belt pulley 4 to rotate, and therefore the elevator motor shaft is driven to rotate, and the car descends to a proper position.

Specifically, the second pulley 203 is provided with a second pulley 203 through hole, and an inner surface of the second pulley 203 through hole is in contact with an outer surface of the outer shaft 205, and an inner surface of the outer shaft 205 is in contact with an outer surface of the inner shaft 202.

Preferably, the inner shaft 202 is provided with splines, and correspondingly, the through hole of the rotating shaft sheet 2011 is internally provided with corresponding splines, so that the connection is more fastened.

Specifically, the motor bracket 1 has a cubic structure, and has 5 faces, namely a left side, a right side, an upper side, a lower side and a rear end.

While the foregoing is directed to the preferred embodiments of the present utility model, it will be appreciated by those skilled in the art that changes and modifications may be made without departing from the principles of the utility model, such changes and modifications are also intended to be within the scope of the utility model.

Claims (8)

1. The utility model provides a manual layer device of leveling of elevator, includes motor support, its characterized in that: the clutch is arranged at the top end of the motor support, a motor is arranged in the motor support, a coupler for connecting the motor with the clutch is arranged at the top end of the elevator motor, the first belt pulley and the outer ring of the clutch share a belt, the first belt pulley is driven to rotate by the belt when the clutch rotates, and the motor is externally connected with a power supply.

2. The manual leveling device for an elevator according to claim 1, wherein: the clutch is an electromagnetic clutch, and the electromagnetic clutch is externally connected with a power supply.

3. The manual leveling device for an elevator according to claim 2, wherein: the electromagnetic clutch comprises a second belt pulley with a circle of grooves at the bottom, an electromagnet embedded in the grooves at the bottom of the second belt pulley, and an electromagnet attraction piece arranged at the top of the second belt pulley.

4. A manual leveling device for an elevator as set forth in claim 3, wherein: the electromagnet attracting piece and the second belt pulley are separated by 1mm in the vertical direction.

5. A manual leveling device for an elevator as set forth in claim 3, wherein: the electromagnet attraction piece comprises a rotating shaft piece, an attraction piece and a spring piece connected with the rotating shaft piece and the attraction piece.

6. The manual leveling device for an elevator as defined in claim 5, wherein: the rotary shaft sheet comprises a circular disc and a rotary shaft arranged at the center of the circular disc, a through hole penetrating through the circular disc and the center of the rotary shaft is arranged at the center of the rotary shaft sheet, an inner shaft is sleeved in the through hole of the rotary shaft, and the inner shaft is fixedly connected with the rotary shaft sheet through a screw.

7. The manual elevator leveling device of claim 6, wherein: the second belt pulley is provided with a second belt pulley through hole, the inner surface of the second belt pulley through hole is attached to the outer surface of the outer shaft, and the inner surface of the outer shaft is attached to the outer surface of the inner shaft.

8. The manual elevator leveling device of claim 6, wherein: the shaft coupling is connected with a motor shaft on the motor and the inner shaft, and the motor shaft and the inner shaft are fixed by adopting screws.

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