CN214611275U - Electric hoist - Google Patents

Abstract

The utility model relates to an electric hoist, which comprises a driving mechanism, a wire rope reel, a rope guider, a fixed wire rope, a moving wire rope, a hook, a metal block, a travel switch, a control power supply and a first wire rope; the driving mechanism is in transmission connection with the steel wire rope winding drum, the driving mechanism is used for driving the steel wire winding drum to work, and the rope guider is arranged on the steel wire rope winding drum; the fixed steel wire rope and the moving steel wire rope are respectively arranged on the rope guide and are respectively connected with the lifting hook; the travel switch is arranged on the shell of the steel wire rope reel and is electrically connected with the control power supply; the metal block is arranged on the fixed steel wire rope close to one end of the steel wire rope winding drum; the travel switch is connected with the metal block through a first steel wire rope. The utility model discloses an electric block can avoid the problem of lifting hook top and electric block's bottom bump, avoids electric block to damage, avoids having played the incident emergence, and reduces the maintenance volume, guarantees normal production.

Description

Electric hoist

Technical Field

The utility model relates to a hoist mechanical equipment technical field, in particular to electric block.

Background

The electric hoist is a hoisting device, is arranged on a crown block and a gantry crane, has the characteristics of small volume, light dead weight, simple operation, convenient use and the like, and is used in places such as industrial and mining enterprises, storage, docks and the like.

In the prior art, the fire-break limiter is used for ascending limit protection of the electric hoist, and the fire-break limiter is prone to making mistakes frequently, so that large maintenance amount is caused, and production is affected. Electric block is in the use, because the action protection that the stop of putting out a fire was driven electric block by the action of conductor, and wire rope produces the distortion easily when the use is rolled up, and is frequent when the electric block operation, and the stop of putting out a fire moves frequently, thereby it is malfunctioning to lead to the stop of putting out a fire fault rate height, and the phenomenon of lifting hook top and electric block's bottom bump often can appear, leads to system electric block to damage. When serious, the electric hoist falls down to cause safety accidents.

SUMMERY OF THE UTILITY MODEL

Therefore, an electric hoist is needed to be provided, and is used for solving the problems that in the prior art, the fire-cut limiter is used for ascending limit protection of the electric hoist, the fire-cut limiter is prone to making mistakes frequently, large maintenance amount is caused, and production is affected. Electric block is in the use, because the action protection that the stop of putting out a fire was driven electric block by the action of conductor, and wire rope produces the distortion easily when the use is rolled up, and is frequent when the electric block operation, and the stop of putting out a fire moves frequently, thereby it is malfunctioning to lead to the stop of putting out a fire fault rate height, and the phenomenon of lifting hook top and electric block's bottom bump often can appear, leads to system electric block to damage. When serious, the electric hoist falls down to cause technical problems of safety accidents and the like.

In order to achieve the above object, the inventor provides an electric hoist, which comprises a driving mechanism, a wire rope reel, a rope guider, a fixed wire rope, a moving wire rope, a lifting hook, a metal block, a travel switch, a control power supply and a first wire rope;

the driving mechanism is in transmission connection with the steel wire rope reel, the driving mechanism is used for driving the steel wire reel to work, and the rope guider is arranged on the steel wire rope reel;

the fixed steel wire rope and the moving steel wire rope are respectively arranged on the rope guider and are respectively connected with the lifting hook;

the travel switch is arranged on the shell of the steel wire rope winding drum and is electrically connected with the control power supply;

the metal block is arranged on the fixed steel wire rope close to one end of the steel wire rope winding drum;

the travel switch is connected with the metal block through the first steel wire rope.

As an optimized structure of the utility model, travel switch includes the push rod, the push rod with the metal block passes through first wire rope connects.

As a preferred structure of the utility model, travel switch still includes the break contact and the make contact, the break contact the make contact respectively with the control power electricity is connected.

As a preferred structure of the present invention, the driving mechanism includes a motor and a reduction gear box; the motor is in transmission connection with the reduction gearbox, and the reduction gearbox is in transmission connection with the steel wire rope reel.

As a preferred structure of the utility model, electric block still includes the stop of putting out a fire, the stop of putting out a fire set up in on the shell of wire rope reel, the stop of putting out a fire with the rope guide is connected.

As a preferred structure of the utility model, electric block still includes translation mechanism, translation mechanism set up in actuating mechanism one side, translation mechanism is used for the drive electric block removes in the horizontal direction.

As an optimized structure of the utility model, the metal block is a heavy hammer.

Different from the prior art, the beneficial effects of the technical scheme are as follows: in the electric block use, when the lifting hook rises to being close to the wire rope reel, the lifting hook contacts with the metal block, and the first wire rope of being connected between weight and the travel switch relaxs to cut off the control power supply of electric block ascending loop, the lifting hook stops rising, avoids the problem of lifting hook top and electric block's bottom bump, avoids electric block to damage, has avoided the incident to take place, and reduces the maintenance volume, guarantees normal production.

Drawings

Fig. 1 is a front view of an electric hoist according to an embodiment;

FIG. 2 is a diagram of the circuit connection of the electric hoist according to the embodiment;

fig. 3 is a second diagram of the circuit connection of the electric hoist according to the embodiment.

Description of reference numerals:

1. a driving mechanism for driving the motor to rotate,

2. a steel wire rope winding drum is arranged on the steel wire rope,

3. the steel wire rope is fixed,

4. the steel wire rope is moved,

5. the metal block is a metal block, and the metal block,

6. a travel switch is arranged on the base plate,

61. the push rod is arranged on the upper portion of the push rod,

7. a lifting hook is arranged on the lifting hook,

8. a first steel wire rope is arranged on the first steel wire rope,

9. a fire-stopping limiter.

Detailed Description

To explain technical contents, structural features, and objects and effects of the technical solutions in detail, the following detailed description is given with reference to the accompanying drawings in conjunction with the embodiments.

In the description of the present application, unless explicitly stated or limited otherwise, the terms "first", "second", and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless specified or indicated otherwise; the terms "connected," "fixed," and the like are to be construed broadly and may, for example, be fixedly connected, detachably connected, integrally connected, or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present application, it should be understood that the terms "upper", "lower", "left", "right", and the like used in the embodiments of the present application are described with reference to the angles shown in the drawings, and should not be construed as limiting the embodiments of the present application. In addition, in this context, it will also be understood that when an element is referred to as being "on" or "under" another element, it can be directly on "or" under "the other element or be indirectly on" or "under" the other element via an intermediate element.

Referring to fig. 1 to 3, the present embodiment relates to an electric hoist, which is applied to factories, mines, docks, warehouses, goods yards, stores, and the like, and lifts objects from one place. Specifically, the electric hoist comprises a driving mechanism 1, a steel wire rope reel 2, a rope guider, a fixed steel wire rope 3, a moving steel wire rope 4, a lifting hook 7, a metal block 5, a travel switch 6, a control power supply and a first steel wire rope 8; the driving mechanism 1 is in transmission connection with the steel wire rope reel 2, and specifically, in this embodiment, the driving mechanism 1 includes a motor and a reduction gearbox; the motor is in transmission connection with the reduction gearbox, and the reduction gearbox is in transmission connection with the steel wire rope winding drum 2. The driving mechanism 1 is used for driving the wire reel to work.

Further, in some embodiments, the rope guider is mounted on the wire rope drum 2, as shown in fig. 1, the fixed wire rope 3 and the moving wire rope 4 are respectively disposed on the rope guider, the rope guider is penetrated by the fixed wire rope 3 and the moving wire rope 4, and when the wire rope drum 2 rotates, the rope guider axially moves along the rotating shaft along with the drawing position of the moving wire rope 4 in the drum. And the fixed steel wire rope 3 and the moving steel wire rope 4 are respectively connected with the lifting hook 7, and the lifting hook 7 is used for hooking a heavy object.

Further, in some embodiments, as shown in fig. 1, the travel switch 6 is disposed on the housing of the wire rope reel 2, and the travel switch 6 is electrically connected to the control power supply, specifically, in this embodiment, as shown in fig. 2, the travel switch 6 is connected in series with the control power supply, and further, the travel switch 6 further includes a dynamic break contact and a dynamic make contact, and the dynamic break contact and the dynamic make contact are electrically connected to the control power supply respectively.

Further, in some embodiments, as shown in fig. 1, the metal block 5 is disposed on the fixed wire rope 3 near one end of the wire rope reel 2; the travel switch 6 is connected with the metal block 5 through the first steel wire rope 8. Specifically, in this embodiment, as shown in fig. 1, the travel switch 6 includes a push rod 61, and the push rod 61 is connected to the metal block 5 through the first wire rope 8. Preferably, in this embodiment, the metal block 5 is a weight. Preferably, in the embodiment, the travel switch 6 is the travel switch 6 with the model number of LX 3-11H.

Further, in some embodiments, the electric hoist further includes a translation mechanism disposed on one side of the driving mechanism 1, and the translation mechanism is configured to drive the electric hoist to move in a horizontal direction.

Further, in some embodiments, as shown in fig. 1 and 3, the electric hoist further includes a fire breaking stopper 9, the fire breaking stopper 9 is disposed on the outer shell of the wire rope reel 2, and the fire breaking stopper 9 is connected to the rope guider. Specifically, in this embodiment, the fire cut-off stopper 9 is pushed and triggered by a limit push rod, the limit push rod is fixed with the rope guider, and the fire cut-off stopper 9 plays a limiting role.

Specifically, at ordinary times, the push rod 61 of the travel switch 6 is pulled down under the action of the gravity of the metal block 5; in the electric block use, when lifting hook 7 rises to being close to wire rope reel 2, lifting hook 7 takes place the contact with metal block 5, the first wire rope 8 of being connected between metal block 5 and travel switch 6 relaxs, travel switch 6's push rod 61 up contracts, cut off the control power supply of electric block ascending loop, lifting hook 7 stops rising, avoid the problem of 7 tops of lifting hook and electric block's bottom bump, avoid electric block to damage, avoid the incident to take place, and reduce the maintenance volume, guarantee normal production. And limit switch responds before disconnected fire stopper 9, has effectively avoided the lifting hook 7 because of the striking between improper operation and the electric block bottom, has improved disconnected fire stopper 9's life, utilizes travel switch 6 and disconnected fire stopper 9 to carry out twice spacing protection simultaneously, reduces the fault rate.

It should be noted that, although the above embodiments have been described herein, the scope of the present invention is not limited thereby. Therefore, based on the innovative concept of the present invention, the changes and modifications of the embodiments described herein, or the equivalent structure or equivalent process changes made by the contents of the specification and the drawings of the present invention, directly or indirectly apply the above technical solutions to other related technical fields, all included in the protection scope of the present invention.

Claims (6)

1. An electric block, its characterized in that: the device comprises a driving mechanism, a steel wire rope reel, a rope guider, a fixed steel wire rope, a moving steel wire rope, a lifting hook, a metal block, a travel switch, a control power supply and a first steel wire rope;

the driving mechanism is in transmission connection with the steel wire rope reel, the driving mechanism is used for driving the steel wire reel to work, and the rope guider is arranged on the steel wire rope reel;

the fixed steel wire rope and the moving steel wire rope are respectively arranged on the rope guider and are respectively connected with the lifting hook;

the travel switch is arranged on the shell of the steel wire rope winding drum and is electrically connected with the control power supply;

the metal block is arranged on the fixed steel wire rope close to one end of the steel wire rope winding drum;

the travel switch is connected with the metal block through the first steel wire rope;

the travel switch comprises a push rod, and the push rod is connected with the metal block through the first steel wire rope.

2. The electric hoist according to claim 1, characterized in that: the travel switch further comprises a break contact and a make contact, and the break contact and the make contact are respectively and electrically connected with the control power supply.

3. The electric hoist according to claim 1, characterized in that: the driving mechanism comprises a motor and a reduction gearbox; the motor is in transmission connection with the reduction gearbox, and the reduction gearbox is in transmission connection with the steel wire rope reel.

4. The electric hoist according to claim 1, characterized in that: the electric hoist further comprises a fire breaking limiter, the fire breaking limiter is arranged on the shell of the steel wire rope winding drum, and the fire breaking limiter is connected with the rope guide.

5. The electric hoist according to claim 1, characterized in that: the electric hoist further comprises a translation mechanism, the translation mechanism is arranged on one side of the driving mechanism, and the translation mechanism is used for driving the electric hoist to move in the horizontal direction.

6. The electric hoist according to claim 1, characterized in that: the metal block is a heavy hammer.

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