CN210505362U

CN210505362U - Automatic power-off protection device of hoisting electric hoist

Info

Publication number: CN210505362U
Application number: CN201921573053.7U
Authority: CN
Inventors: 邹威; 张晗; 陶伟志; 许铁其
Original assignee: Yangchun New Iron and Steel Co Ltd
Current assignee: Yangchun New Iron and Steel Co Ltd
Priority date: 2019-09-20
Filing date: 2019-09-20
Publication date: 2020-05-12
Anticipated expiration: 2029-09-20

Abstract

The utility model relates to a jack-up transportation equipment technical field just discloses an automatic power-off protection device of hoist electric block, including the steel cable, the top left side fixed mounting of steel cable has the fixed plate, the top right side fixed mounting of fixed plate has the fixing base that is located the steel cable outside, the inner wall of fixing base openly all sets up quantity for two spacing grooves with the back, the right side cartridge of fixing base has the check lock lever that extends to the fixing base inside, the left side movable mounting of check lock lever has the connecting seat that is located the fixing base inside, the left side fixed mounting of connecting seat has the clamp plate that extends to the steel cable outside. This automatic power-off protection device of electric hoist compares traditional power-off device cost lower, and can be carried out power-off protection by the touching after electric hoist lifting hook steel wire drive wheel skew, can not lead to the response not arriving by adhesion such as dustproof greasy dirt simultaneously, and unable timely outage is better to the protection effect of electric hoist, avoids equipment accident to take place.

Description

Automatic power-off protection device of hoisting electric hoist

Technical Field

The utility model relates to a jack-up transportation equipment technical field specifically is an automatic power-off protection device of hoist electric block.

Background

The electric hoist is used as the most ideal equipment for carrying articles in a factory, is used frequently, is used as important equipment for lifting and transporting in the factory, and is particularly important as a safety protection device, if the materials are lifted to the maximum limit in the lifting process and cannot be stopped in time, a lifting hook steel wire driving wheel of the electric hoist collides with a hoist steel wire roller, the steel wire rope is broken due to the tensile force, the safety of the whole set of equipment is damaged, and personal injury of ground workers is caused.

The automatic power-off protection device of the existing electric hoist is mainly an infrared sensing and overload alarming device and is used for guaranteeing the safety of equipment and operators, namely the infrared sensing and overload alarming device is installed at the top of a steel wire rope, the method has the advantages of being simple and convenient to install and not easy to fall off and hit by falling objects, but the method has a great defect, the method is an independent infrared sensing device and is fixed on the steel wire rope, only one direction can be detected, the phenomenon that the infrared sensing lamp cannot be sensed when the direction of a steel wire driving wheel of a lifting hook of the electric hoist deviates from the direction of the infrared sensing lamp or the infrared sensing lamp is adhered by dust and oil stains can occur, equipment accidents can be caused if the operators cannot timely power off, and the automatic power-off protection device of the electric hoist is provided to solve the problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model provides a not enough to prior art, the utility model provides an automatic power-off protection device of electric hoist possesses advantages such as more safety, has solved and has taken place skew or the phenomenon that the infrared induction lamp can not appear responding to when the infrared induction lamp is by dust, greasy dirt adhesion when electric hoist lifting hook steel wire drive wheel and infrared induction lamp direction, if operating personnel can not accomplish in time the outage and will lead to the problem that the equipment accident takes place.

(II) technical scheme

In order to realize the above-mentioned safer purpose, the utility model provides a following technical scheme: an automatic power-off protection device of a hoisting electric hoist comprises a steel rope, wherein a fixed plate is fixedly mounted on the left side of the top end of the steel rope, a fixed seat positioned outside the steel rope is fixedly mounted on the right side of the top end of the fixed plate, two limiting grooves are respectively formed in the front surface and the back surface of the inner wall of the fixed seat, a locking rod extending into the fixed seat is inserted into the right side of the fixed seat, a connecting seat positioned inside the fixed seat is movably mounted on the left side of the locking rod, a pressing plate extending to the outside of the steel rope is fixedly mounted on the left side of the connecting seat, two limiting strips respectively extending into the limiting grooves are fixedly mounted on the front surface and the back surface of the pressing plate, a butterfly-shaped torsion piece is fixedly mounted at the right end of the locking rod, a travel switch is fixedly mounted on the left, the outside cover of lead screw is equipped with the connection rope that extends to the lead screw below, the outside threaded connection of lead screw have with be connected the fixation nut of rope right side contact, the bottom fixed mounting who connects the rope has the connecting plate, the outside fixed mounting in bottom of connecting the rope has the locking piece that is located the connecting plate top, the outside gag lever post of steel cable is located to the right side cartridge of connecting plate, the left end threaded connection of gag lever post has the fastening nut with the contact of connecting plate left side, the bottom fixed mounting of connecting plate has the balancing weight.

Preferably, the right side of the fixing plate is bonded with an elastic rubber pad positioned in the fixing seat, and the limiting strip is matched with the limiting groove.

Preferably, the outside of the locking rod is provided with a thread, and the locking rod is in threaded connection with the fixing seat.

Preferably, the fixing plate is fixedly connected with the fixing seat through four bolts inserted on the left side of the fixing plate, and the fixing seat is arranged in a U shape.

Preferably, the left side of the pressing plate is matched with the steel rope, and the limiting rod is arranged in a U shape.

Preferably, the diameter of the left threaded end of the limiting rod is smaller than that of the right threaded end of the limiting rod, and a connecting ring is fixedly mounted at the top of the connecting plate.

(III) advantageous effects

Compared with the prior art, the utility model provides an automatic power-off protection device of electric hoist possesses following beneficial effect:

the automatic power-off protection device of the hoisting electric hoist is characterized in that when the automatic power-off protection device is installed, a fixed plate and a fixed seat are installed at the outer part of the top end of the steel rope fixed end of the electric hoist, a butterfly-shaped torsion piece is twisted to drive a locking rod to move towards the inner part of the fixed seat, a pressing plate is pushed by a limiting groove and a limiting strip to be matched with the fixed plate to relatively fix and limit the steel rope, a travel switch is connected with a main power supply of the electric hoist in series, the switch end of the travel switch is pressed downwards to be opened, the top end of a connecting rope is sleeved on a lead screw, the top end of the connecting rope is fixed by a fixing nut, the limiting rod is sleeved outside the steel rope to penetrate through the connecting plate, the travel switch can be used by fixing the fastening nut, when the steel wire transmission wheel of the electric hoist lifting hook collides with a balancing weight, the, travel switch's switch end is served and is popped up, and the power supply is cut off for electric hoist automatic power off, this device simple structure is reasonable, compares traditional power-off equipment cost lower, and can be anyhow carried out power-off protection by the touching after electric hoist lifting hook steel wire drive wheel skew, can not lead to the response not being adhered to by dustproof greasy dirt etc. simultaneously, can't in time cut off the power supply, and is better to the protection effect of electric hoist, avoids the equipment occurence of failure.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is an enlarged schematic view of the structure at a position a of the present invention.

In the figure: 1 steel rope, 2 fixed plates, 3 fixing seats, 4 limiting grooves, 5 locking rods, 6 connecting seats, 7 pressing plates, 8 limiting strips, 9 butterfly-shaped torsion pieces, 10 travel switches, 11 lead screws, 12 connecting ropes, 13 fixing nuts, 14 connecting plates, 15 locking blocks, 16 limiting rods, 17 fastening nuts and 18 balancing weights.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Please refer to fig. 1-2, an automatic power-off protection device for a hoist electric hoist, including a steel cable 1, a fixing plate 2 is fixedly installed on the left side of the top of the steel cable 1, a fixing seat 3 located outside the steel cable 1 is fixedly installed on the right side of the top of the fixing plate 2, the fixing plate 2 and the fixing seat 3 are fixedly connected with four bolts through the left side insertion of the fixing plate 2, the fixing seat 3 is in a U-shaped configuration, two limit grooves 4 are respectively formed in the front and the back of the inner wall of the fixing seat 3, a locking rod 5 extending to the inside of the fixing seat 3 is inserted in the right side of the fixing seat 3, threads are arranged outside the locking rod 5, the locking rod 5 is in threaded connection with the fixing seat 3, a connecting seat 6 located inside the fixing seat 3 is movably installed on the left side of the locking rod 5, a pressing plate 7 extending to the outside of the steel cable 1 is fixedly installed on the left side of the connecting seat The right side of the fixed plate 2 is bonded with an elastic rubber pad positioned in the fixed seat 3, a limiting strip 8 is matched with a limiting groove 4, the right end of the locking rod 5 is fixedly provided with a butterfly-shaped torsion piece 9, the left side of the fixed plate 2 is fixedly provided with a travel switch 10, the switch end of the travel switch 10 is fixedly provided with a lead screw 11, the outer part of the lead screw 11 is sleeved with a connecting rope 12 extending to the lower part of the lead screw 11, the outer part of the lead screw 11 is in threaded connection with a fixed nut 13 in contact with the right side of the connecting rope 12, the bottom end of the connecting rope 12 is fixedly provided with a connecting plate 14, the outer part of the bottom end of the connecting rope 12 is fixedly provided with a locking block 15 positioned above the connecting plate 14, the right side of the connecting plate 14 is inserted with a limiting rod 16 sleeved outside the steel rope 1, the diameter of, the limiting rod 16 is arranged in a U shape, the left end of the limiting rod 16 is in threaded connection with a fastening nut 17 which is in contact with the left side of a connecting plate 14, the bottom of the connecting plate 14 is fixedly provided with a balancing weight 18, when the limiting rod is installed, a fixing plate 2 and a fixing seat 3 are installed at the outer part of the top end of the fixing end of a steel rope 1 of the electric hoist, a butterfly-shaped torsion sheet 9 is twisted to drive a locking rod 5 to move towards the inner part of the fixing seat 3, a pressing plate 7 is pushed through a limiting groove 4 and a limiting strip 8 to be matched with the fixing plate 2 to carry out relative fixed limiting on the steel rope 1, a travel switch 10 is connected with a main power supply of the electric hoist in series, the switch end is pressed downwards to be opened, the top end of a connecting rope 12 is sleeved on a screw rod 11 and is fixed by using a fixing nut 13, the limiting rod 16 is sleeved on the outer part, clump weight 18 follows the same upward movement of electric hoist lifting hook steel wire drive wheel under gag lever post 16's is spacing, be close to travel switch 10, connect the switch end of 12 taut travel switch 10 no longer of rope, travel switch 10's switch end is played, power supply cut off, make electric hoist automatic power off, this device simple structure is reasonable, it is lower to compare traditional power-off equipment cost, and can be carried out power-off protection by the touching after electric hoist lifting hook steel wire drive wheel skew, can not be leaded to the response by adhesion such as dustproof greasy dirt simultaneously, can't in time cut off the power supply, protection effect to electric hoist is better, avoid the equipment occurence of failure to take place.

In conclusion, when the automatic power-off protection device of the hoisting electric hoist is installed, the fixed plate 2 and the fixed seat 3 are installed at the top end outside the fixed end of the steel rope 1 of the electric hoist, the butterfly-shaped torsion piece 9 is twisted to drive the locking rod 5 to move towards the inside of the fixed seat 3, the compression plate 7 is pushed by the limiting groove 4 and the limiting strip 8 to be matched with the fixed plate 2 to relatively fix and limit the steel rope 1, the travel switch 10 is connected with the main power supply of the electric hoist in series, the switch end is pressed downwards to be opened, the top end of the connecting rope 12 is sleeved on the screw rod 11 to be fixed by the fixing nut 13, the limiting rod 16 is sleeved outside the steel rope 1 to penetrate through the connecting plate 14 and is fixed by the fastening nut 17 for use, when the lifting hook steel wire driving wheel of the electric hoist collides with the balancing weight 18, the balancing weight 18 moves upwards along with the lifting hook steel wire driving, be close to travel switch 10, connect the switch end that rope 12 is taut travel switch 10 no longer, travel switch 10's switch end is served and is popped up, cut off power supply, make electric hoist automatic power off, this device simple structure is reasonable, it is lower to compare traditional power-off device cost, and can be carried out power-off protection by touching after electric hoist lifting hook steel wire drive wheel skew, can not lead to not arriving by adhesion such as dustproof greasy dirt simultaneously, unable timely outage, the protection effect to electric hoist is better, avoid the equipment occurence of failure, solved and taken place to squint or infrared induction lamp by the dust when electric hoist lifting hook steel wire drive wheel and infrared induction lamp direction, the phenomenon that can not appear responding to during the greasy dirt adhesion, if operating personnel can not accomplish the problem that the timely outage will lead to the equipment occurence of failure.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a hoist electric block's auto-power-off protection device, includes steel cable (1), its characterized in that: the steel rope fixing device is characterized in that a fixing plate (2) is fixedly mounted on the left side of the top end of the steel rope (1), a fixing seat (3) located outside the steel rope (1) is fixedly mounted on the right side of the top end of the fixing plate (2), two limiting grooves (4) are formed in the front side and the back side of the inner wall of the fixing seat (3), a locking rod (5) extending into the fixing seat (3) is inserted into the right side of the fixing seat (3), a connecting seat (6) located inside the fixing seat (3) is movably mounted on the left side of the locking rod (5), a pressing plate (7) extending to the outside of the steel rope (1) is fixedly mounted on the left side of the connecting seat (6), two limiting strips (8) extending into the limiting grooves (4) respectively are fixedly mounted on the front side and the back side of the pressing plate (7), and a butterfly-shaped torsion piece (9, a travel switch (10) is fixedly arranged on the left side of the fixed plate (2), a screw rod (11) is fixedly arranged at the switch end of the travel switch (10), a connecting rope (12) extending to the lower part of the screw rod (11) is sleeved outside the screw rod (11), the external thread of the screw rod (11) is connected with a fixed nut (13) which is contacted with the right side of the connecting rope (12), a connecting plate (14) is fixedly arranged at the bottom end of the connecting rope (12), a locking block (15) positioned above the connecting plate (14) is fixedly arranged outside the bottom end of the connecting rope (12), a limiting rod (16) sleeved outside the steel rope (1) is inserted at the right side of the connecting plate (14), the left end threaded connection of gag lever post (16) has fastening nut (17) with connecting plate (14) left side contact, the bottom fixed mounting of connecting plate (14) has balancing weight (18).

2. The automatic power-off protection device of the hoist electric block as claimed in claim 1, wherein: the right side of the fixed plate (2) is bonded with an elastic rubber pad positioned in the fixed seat (3), and the limiting strip (8) is matched with the limiting groove (4) in a homogeneous manner.

3. The automatic power-off protection device of the hoist electric block as claimed in claim 1, wherein: the outside of check lock pole (5) is provided with the screw thread, check lock pole (5) and fixing base (3) threaded connection.

4. The automatic power-off protection device of the hoist electric block as claimed in claim 1, wherein: the fixing plate (2) is fixedly connected with the fixing seat (3) through four bolts inserted on the left side of the fixing plate (2), and the fixing seat (3) is arranged in a U shape.

5. The automatic power-off protection device of the hoist electric block as claimed in claim 1, wherein: the left side of the pressing plate (7) is matched with the steel rope (1), and the limiting rod (16) is arranged in a U shape.

6. The automatic power-off protection device of the hoist electric block as claimed in claim 1, wherein: the diameter of the left threaded end of the limiting rod (16) is smaller than that of the right threaded end, and a connecting ring is fixedly mounted at the top of the connecting plate (14).