CN219823474U - Limiting failure protection device of crane - Google Patents

Abstract

The utility model relates to the field of crane limiters and discloses a limiting failure protection device of a crane, which comprises a support frame and a connecting seat, wherein a rotating disc is rotatably arranged on the inner wall of the support frame; according to the utility model, the motor is started and then the meshing disc is rotated by the transmission disc, the surface of the meshing disc is meshed with the surface of the rotating disc, so that the rotating disc can be rotated conveniently, the pull rope is wound rapidly, and the situation that an object at the bottom end of the pull rope collides with a machine when the limiter fails is avoided.

Description

Limiting failure protection device of crane

Technical Field

The utility model relates to the field of crane limiters, in particular to a limiting failure protection device of a crane.

Background

The limiter is a safety device for protecting machines and users thereof, is commonly arranged on automobiles and cranes, is generally arranged at the head part of a crane arm, and can only descend when a lifting hook slides to a limit position, so that a lever is supported, a limit switch is pressed down, a circuit is cut off, and the circuit is stopped and reclosed.

Aiming at the related technology, the inventor believes that when the conventional crane limiter is used for a long time or the failure condition occurs in the detection of omission, when the lifting arm of the crane is lifted too high, the winding mechanism of the crane is difficult to wind the pull rope in time, so that the object at the bottom end of the lifting rope is easy to approach to the position of the crane and a user, and the crane and the user are damaged, thereby causing dangerous conditions.

The above information disclosed in this background section is only for enhancement of understanding of the background section of the utility model and therefore it may not form the prior art that is already known to those of ordinary skill in the art.

Disclosure of Invention

The utility model provides a limiting failure protection device of a crane, which aims to solve the problem that a suspended object is easy to collide with the position of a machine after the limiter of the crane fails.

The utility model provides a limit failure protection device of a crane, which adopts the following technical scheme:

the utility model provides a spacing malfunction protection device of loop wheel machine, includes support frame and connecting seat, the inner wall of support frame rotates installs the rolling disc, the inner wall sliding connection of rolling disc has the stay cord, and the one end fixed mounting of rolling disc has the stopper, the one end rotation of connecting seat is connected with the rotating turret, the meshing dish is installed in the inner wall rotation of rotating turret, the one end rotation of meshing dish is connected with the driving disc, the one end rotation of driving disc installs the motor, the dimensional specification on meshing dish surface and rolling disc surface dimension specification looks adaptation, and the inner wall and the stay cord surface sliding mounting of meshing dish, the one end and the rotating turret fixed surface of motor are connected.

Preferably, one end of the connecting seat is welded with the surface of the supporting frame, the rotating frame is of a V-shaped structure, and the dimension specification of the inner wall of the rotating frame is matched with the dimension specification of the surface of the connecting seat.

Preferably, the surface rotation of rotating frame installs two telescopic links, two the telescopic link uses the rotating frame to be axisymmetric distribution, the one end rotation that the rotating frame was kept away from to the telescopic link is connected with the connecting block, the one end and the support frame surface rotation installation of connecting block.

Preferably, one end fixedly connected with shielding frame of driving disk, the dimension specification of shielding frame inner wall and motor surface dimension specification looks adaptation, and shielding frame's inner wall fixed mounting has the fan, the center of fan and motor center are on same straight line.

Preferably, one end fixedly connected with of fan shelters from the net, shelter from the surface of net and shelter from the internal wall dimension specification looks adaptation of frame, shelter from the surface mounting of frame and have a plurality of ventilation groove piece.

In summary, the utility model has the following beneficial technical effects:

1. through rotating the meshing disc with the help of the driving disc after starting the motor, the surface of the meshing disc is meshed with the surface of the rotating disc so as to rotate the rotating disc, the stay rope is wound up rapidly, the situation that an object at the bottom end of the stay rope collides with a machine is avoided when a limiter is out of order, a rotating frame is arranged on the surface of the meshing disc, one end of the rotating frame is arranged on the surface of a supporting frame by means of a connecting seat so as to enable the meshing disc to rotate, the meshing disc and the rotating disc are separated conveniently when the motor is not needed, a telescopic rod is rotatably arranged on the surface of the rotating frame, one end of the telescopic rod is arranged on the surface of the supporting frame by means of a connecting block so as to control the angle of the rotating frame, and the motor is more convenient when the motor is used; compared with the prior art, the use safety of the crane is effectively improved, and the operation is convenient;

2. the shielding frame can be arranged on the surface of the motor, the fan is arranged on the inner wall of the shielding frame so as to cool the motor by means of wind flow generated after the fan is started, the condition that the service life of the motor is influenced by long-time exposure to the outside is avoided, the shielding net is arranged on the inner wall of the shielding frame, the plurality of ventilation groove blocks are arranged on the surface of the shielding frame so as to facilitate the filtration of the wind flow entering the fan, and the corrosion of external rainwater to the fan is reduced; the service life of the motor is effectively prolonged.

Drawings

FIG. 1 is a schematic diagram of an overall structure of a limit failure protection device for a crane according to an embodiment of the application;

FIG. 2 is a schematic view of the structure at A of the embodiment of the application;

fig. 3 is a schematic diagram of a turret structure according to an embodiment of the application.

Reference numerals illustrate: 1. a support frame; 2. a rotating disc; 3. a pull rope; 4. a limiter; 5. a connecting seat; 6. a rotating frame; 7. an engagement plate; 8. a drive plate; 9. a motor; 10. a telescopic rod; 11. a connecting block; 12. a shielding frame; 13. a blower; 14. a shielding net; 15. and (5) ventilating the groove blocks.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-3.

The embodiment of the utility model discloses a limiting failure protection device of a crane. Referring to fig. 1-2, a limit failure protection device of a crane comprises a supporting frame 1, wherein a rotating disc 2 is installed on the inner wall of the supporting frame 1, the rotating disc 2 supports the surface of a pull rope 3, a limiter 4 is installed at one end of the supporting frame 1, the limiter 4 limits the height of the supporting frame 1, when the limiter 4 fails and fails, a motor 9 is started, a meshing disc 7 is rotated by means of a transmission disc 8, the surface of the meshing disc 7 is meshed with the surface of the rotating disc 2, the rotating disc 2 is rotated by means of the meshing disc 7, the pull rope 3 is wound up rapidly, and the situation that an object at the bottom end of the pull rope 3 collides with a machine when the limiter 4 fails is avoided.

Referring to fig. 3, the rotating frame 6 is installed on the surface of the engaging plate 7, one end of the rotating frame 6 is installed on the surface of the supporting frame 1 through the connecting seat 5, the engaging plate 7 can rotate through the rotating frame 6, the engaging plate 7 is conveniently separated from the rotating plate 2 when the engaging plate 7 is not needed to be used, the normal use of the rotating plate 2 is prevented from being influenced, the telescopic rod 10 is installed on the surface of the rotating frame 6 in a rotating mode, one end of the telescopic rod 10 is installed on the surface of the supporting frame 1 through the connecting block 11, the angle of the rotating frame 6 is controlled after the length of the telescopic rod 10 is adjusted, the position of the engaging plate 7 is conveniently adjusted, and the rotating frame is more convenient to use.

Referring to fig. 2-3, the shielding frame 12 is installed on the surface of the motor 9, the motor 9 is prevented from being directly irradiated by sunlight by means of the shielding frame 12, the fan 13 is installed on the inner wall of the shielding frame 12, the heat generated in the shielding frame 12 is blown away by the wind flow generated after the fan 13 is started, the started motor 9 is cooled, the condition that the service life of the motor 9 is influenced by outdoor exposure for a long time is avoided, the shielding net 14 is installed on the inner wall of the shielding frame 12, a plurality of ventilation groove blocks 15 are installed on the surface of the shielding frame 12, the wind flow entering the fan 13 is filtered by the shielding net 14, and the corrosion of external rainwater to the fan 13 is reduced by means of the ventilation groove blocks 15.

The implementation principle of the limit failure protection device of the crane provided by the embodiment of the utility model is as follows: through rotating the meshing dish 7 with the help of driving disk 8 after starting motor 9, meshing dish 7's surface meshes with rotor plate 2 surface mutually, so as to rotate rotor plate 2, carry out quick rolling with stay cord 3, avoid when stopper 4 is malfunctioning, the condition that the object of stay cord 3 bottom hits the machine appears, meshing dish 7 surface mounting has rotating turret 6, rotating turret 6 one end is installed at support frame 1 surface with the help of connecting seat 5, so that meshing dish 7 can rotate, conveniently when need not the use, separate meshing dish 7 and rotor plate 2, the surface rotation of rotating turret 6 installs telescopic link 10, the one end of telescopic link 10 is installed at support frame 1 surface with the help of connecting block 11, so as to control the angle of rotating turret 6, more convenient when using.

The shielding frame 12 can be further arranged on the surface of the motor 9, the fan 13 is arranged on the inner wall of the shielding frame 12 so as to cool the motor 9 by means of wind flow generated after the fan 13 is started, the condition that the motor 9 is exposed to the outdoor influence of service life for a long time is avoided, the shielding net 14 is arranged on the inner wall of the shielding frame 12, the plurality of ventilation groove blocks 15 are arranged on the surface of the shielding frame 12 so as to facilitate the filtration of the wind flow entering the fan 13, and the corrosion of external rainwater to the fan 13 is reduced.

The last points to be described are: first, in the description of the present utility model, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be mechanical or electrical, or may be a direct connection between two elements, and "upper," "lower," "left," "right," etc. are merely used to indicate relative positional relationships, which may be changed when the absolute position of the object being described is changed;

secondly: in the drawings of the disclosed embodiments, only the structures related to the embodiments of the present disclosure are referred to, and other structures can refer to the common design, so that the same embodiment and different embodiments of the present disclosure can be combined with each other under the condition of no conflict;

finally: the foregoing description of the preferred embodiments of the utility model is not intended to limit the utility model to the precise form disclosed, and any such modifications, equivalents, and alternatives falling within the spirit and principles of the utility model are intended to be included within the scope of the utility model.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims (6)

1. The utility model provides a spacing malfunction protection device of loop wheel machine, includes support frame (1) and connecting seat (5), its characterized in that: the inner wall rotation of support frame (1) is installed rolling disc (2), the inner wall sliding connection of rolling disc (2) has stay cord (3), and the one end fixed mounting of rolling disc (2) has stopper (4), the one end rotation of connecting seat (5) is connected with rolling frame (6), meshing dish (7) are installed in the inner wall rotation of rolling frame (6), the one end rotation of meshing dish (7) is connected with driving disc (8), motor (9) are installed in the one end rotation of driving disc (8).

2. The limit failure protection device of a crane according to claim 1, wherein: the surface size specification of the meshing disc (7) is matched with the surface size specification of the rotating disc (2), the inner wall of the meshing disc (7) is slidably mounted on the surface of the pull rope (3), and one end of the motor (9) is fixedly connected with the surface of the rotating frame (6).

3. The limit failure protection device of a crane according to claim 1, wherein: one end of the connecting seat (5) is welded with the surface of the supporting frame (1), the rotating frame (6) is of a V-shaped structure, and the dimension specification of the inner wall of the rotating frame (6) is matched with the dimension specification of the surface of the connecting seat (5).

4. The limit failure protection device of a crane according to claim 1, wherein: the surface rotation of rotating frame (6) is installed two telescopic links (10), two telescopic links (10) use rotating frame (6) to be axisymmetric distribution, the one end rotation that rotating frame (6) was kept away from to telescopic link (10) is connected with connecting block (11), the one end and support frame (1) surface rotation installation of connecting block (11).

5. The limit failure protection device of a crane according to claim 1, wherein: one end fixedly connected with shielding frame (12) of driving disk (8), the dimension specification of shielding frame (12) inner wall and motor (9) surface dimension specification looks adaptation, and the inner wall fixed mounting of shielding frame (12) has fan (13), the center of fan (13) is in same straight line with motor (9) center.

6. The crane limit failure protection device according to claim 5, wherein: one end fixedly connected with of fan (13) shelters from net (14), the surface of sheltering from net (14) and the interior wall dimension specification looks adaptation of sheltering from frame (12), the surface fixed mounting of sheltering from frame (12) has a plurality of ventilation groove piece (15).