CN210795596U

CN210795596U - Overload protection device of electric slewing crane

Info

Publication number: CN210795596U
Application number: CN201920999661.8U
Authority: CN
Inventors: 李建建; 葛飞; 李琼
Original assignee: Zhenjiang Yuanfeng Machinery Equipment Co ltd
Current assignee: Zhenjiang Yuanfeng Machinery Equipment Co ltd
Priority date: 2019-06-30
Filing date: 2019-06-30
Publication date: 2020-06-19
Anticipated expiration: 2029-06-30

Abstract

The utility model relates to a loop wheel machine technical field just discloses an overload protection device that electronic gyration was hung, comprising a base plate, the top fixed mounting of bottom plate has the mobile jib, the equal fixed mounting in the left and right sides of mobile jib has the curb plate with bottom plate fixed connection. This overload protection device of electronic gyration is hung, through setting up the lifting hook, at first lengthen the lifting rope through the line case, can hang the goods and materials on the lifting hook, the couple receives the power that the goods and materials drop down and moves down this moment, thereby drive the kickboard and move down, when goods and materials weight is overloaded, the kickboard just can move down to certain position, and touch the alarm switch, make the alarm report to the police, make the device realize timely early warning effect, the security of equipment has been improved, through setting up telescopic link and compression spring, certain buffering effect has been played to the removal of kickboard, avoid the kickboard to move too fast, the impact force of instantaneous speed crushes the alarm, the security performance of equipment has further been improved.

Description

Overload protection device of electric slewing crane

Technical Field

The utility model relates to a loop wheel machine technical field specifically is an overload protection device that electronic gyration was hung.

Background

The crane is a popular name of the crane and is widely applied to a series of heavy-duty products such as ships, equipment, machinery, molds and the like.

The power device comprises a motor, a speed reducer, a clutch, a brake, a rope drum, a steel wire rope and the like, the overload protection device commonly used for the electric rotary crane in the current market generally has the defect of low safety performance, a pressure sensor is generally used for analyzing the gravity of materials, then information is transmitted to the early warning device, the overload protection of the rotary crane is realized through a series of structures, the early warning of the device is slow, the device is easy to damage, the practicability of the device is poor, and therefore the overload protection device of the electric rotary crane is provided to solve the problem.

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 overload protection device that electronic gyration was hung, possess advantages such as security performance height, it generally has the lower shortcoming of security performance to have solved the overload protection device that is commonly used for electronic gyration to hang on the existing market, use pressure sensor to carry out the analysis to goods and materials gravity usually, then give early warning device with information transfer, realize the overload protection to the gyration is hung through a series of structures, make the device early warning comparatively slow, lead to equipment to damage easily, make the relatively poor problem of practicality of device.

(II) technical scheme

In order to realize the purpose of the service life, the utility model provides a following technical scheme: an overload protection device of an electric slewing crane comprises a base plate, wherein a main rod is fixedly mounted at the top of the base plate, side plates fixedly connected with the base plate are fixedly mounted on the left side and the right side of the main rod respectively, a motor box is fixedly mounted at the top of the main rod, a first motor is fixedly mounted in an inner cavity of the motor box, an output shaft of the first motor is fixedly mounted with a rotating rod, one end of the rotating rod penetrates through and extends to the outer side of the motor box and is movably connected with the motor box, a connecting loop bar is fixedly mounted at the top of the outer side of the rotating rod, a cross bar is fixedly mounted at the left side of the connecting loop bar, a rotating plate is movably mounted at the top of the outer side of the main rod, a supporting plate is fixedly connected between the rotating plate and the cross bar, a movable plate is movably mounted at the front side and the back side of the cross bar, a second, the utility model discloses a safety protection device for a vehicle, including movable rod, line case, line inner bottom swing joint, lifting rope, fender box, telescopic link, expansion link, fixed mounting, two the outside fixed mounting of movable rod has the roller bearing with horizontal pole swing joint, the bottom fixedly connected with line case of movable plate, the bottom movable mounting of line case has the lifting rope, the bottom movable mounting of lifting rope has the guard box, the bottom fixed mounting of guard box has the stop collar, the bottom movable mounting of stop collar has one end to run through and extend to the guard box inner chamber and with guard box swing joint's lifting hook, the top fixed mounting of lifting hook has the slurcam with guard box swing joint, the equal fixed mounting in the left and right sides of slurcam bottom has the telescopic link with guard box swing joint, the equal fixed mounting in the outside that the left and right sides of slu.

Preferably, compression spring's quantity is two, and two compression springs are the symmetric distribution with the perpendicular bisector of guard box, the telescopic link is ninety degrees perpendicular installation with the guard box.

Preferably, the top of the inner cavity of the protection box is provided with an arc-shaped clamping groove, the arc-shaped clamping groove is matched with the lifting rope, and the bottom plate is fixedly connected with the ground through a bolt.

Preferably, the front surface of the cross rod is provided with a sliding hole, the sliding hole is matched with the rolling shaft, and the movable rod is movably connected with the movable plate through a bearing.

Preferably, the top of rotor plate has seted up the card hole, and blocks hole and mobile jib looks adaptation, it is ninety degrees perpendicular installation with the horizontal pole to connect the loop bar.

Preferably, the top of the motor case is provided with a through hole matched with the rotating rod, and the side plate is trapezoidal.

(III) advantageous effects

Compared with the prior art, the utility model provides an overload protection device that electronic gyration was hung possesses following beneficial effect:

1. this overload protection device of electronic gyration and hang, through setting up the lifting hook, when equipment need hang the thing, at first through the line case with the lifting rope grow, make protection case and lifting hook move down, can hang the goods and materials on the lifting hook, the couple receives the power that the goods and materials drop down and moves down this moment, thereby drive the kickboard and move down, when goods and materials weight is overloaded, the kickboard just can move down certain position, and touch the alarm switch, make the alarm report to the police, make the device realize timely early warning effect, the security of equipment has been improved, through setting up telescopic link and compression spring, certain buffering effect is played to the removal of kickboard, avoid the kickboard to move too fast, the impact force of instant speed crushes the alarm, the security performance of equipment has further been improved.

2. This overload protection device that electronic gyration was hung through setting up the second motor, starts the second motor, makes the movable rod rotate to drive the roller bearing and rotate, can make the movable plate remove about on the horizontal pole, make line case remove about can be stable, improved overall structure's stability, further improvement the security of equipment.

Drawings

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

FIG. 2 is an enlarged view of the point A in FIG. 1 according to the present invention;

fig. 3 is a schematic view of the connection between the second motor and the roller according to the present invention.

In the figure: the device comprises a base plate 1, side plates 2, a main rod 3, a rotating plate 4, a motor box 5, a first motor 6, a rotating rod 7, a connecting loop bar 8, a supporting plate 9, a wire box 10, a moving plate 11, a cross bar 12, a lifting rope 13, a protective box 14, a pushing plate 15, a compression spring 16, a telescopic rod 17, a limiting sleeve 18, a lifting hook 19, an alarm 20, a second motor 21, a rolling shaft 22 and a movable rod 23.

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.

Referring to fig. 1-3, an overload protection device of an electric slewing crane comprises a base plate 1, a main rod 3 is fixedly installed at the top of the base plate 1, side plates 2 fixedly connected with the base plate 1 are fixedly installed at the left side and the right side of the main rod 3, a motor box 5 is fixedly installed at the top of the main rod 3, a through hole matched with a rotating rod 7 is formed at the top of the motor box 5, the side plates 2 are trapezoidal, a first motor 6 is fixedly installed in an inner cavity of the motor box 5, the type of the first motor 6 can be PLX60, a rotating rod 7 with one end penetrating through and extending to the outer side of the motor box 5 and movably connected with the motor box 5 is fixedly installed at the output shaft of the first motor 6, a connecting sleeve rod 8 is fixedly installed at the top of the outer side of the rotating rod 7, a cross rod 12 is fixedly installed at the left side of the connecting sleeve rod 8, a sliding hole is formed in the front of the cross rod 12, the top of the outer side of the main rod 3 is movably provided with a rotating plate 4, the top of the rotating plate 4 is provided with a clamping hole, the clamping hole is matched with the main rod 3, the connecting sleeve rod 8 and the cross rod 12 are vertically arranged at ninety degrees, a supporting plate 9 is fixedly connected between the rotating plate 4 and the cross rod 12, the cross rod 12 is more stable by arranging the supporting plate 9, the bearing capacity is effectively improved, the practicability of the equipment is enhanced, the front surface and the back surface of the cross rod 12 are both movably provided with a movable plate 11, the rear end of the front movable plate 11 is fixedly provided with a second motor 21, the model of the second motor 21 can be PF-60, the second motor 21 is started by arranging the second motor 21, the movable rod 23 is rotated, the roller 22 is driven to rotate, the movable plate 11 can be moved left and right on the cross rod 12, the wire box 10 can be moved left and right stably, further improving the safety of the equipment, the output shaft of the second motor 21 is fixedly provided with a movable rod 23 movably connected with the back movable plate 11, the outer side of the movable rod 23 is fixedly provided with a roller 22 movably connected with the cross rod 12, the bottoms of the two movable plates 11 are fixedly connected with a wire box 10, the bottom of the wire box 10 is movably provided with a lifting rope 13, the bottom of the lifting rope 13 is movably provided with a protective box 14, the top of the inner cavity of the protective box 14 is provided with an arc-shaped clamping groove matched with the lifting rope 13, the bottom plate 1 is fixedly connected with the ground through a bolt, the bottom of the protective box 14 is fixedly provided with a limiting sleeve 18, the bottom of the limiting sleeve 18 is movably provided with a lifting hook 19, one end of the lifting hook 19 penetrates through the inner cavity of the protective box 14 and is movably connected with the protective box 14, through the wire box 10, when the equipment needs lifting objects, the lifting rope 13 is firstly lengthened through the wire box 10, the material can be hung on the lifting hook 19, at the moment, the hook 19 moves downwards under the force of the material pulling, so as to drive the pushing plate 15 to move downwards, when the weight of the material is overloaded, the pushing plate 15 moves downwards to a certain position and touches the switch of the alarm 20, so that the alarm 20 gives an alarm, the device realizes a timely early warning effect, the safety of the equipment is improved, a certain buffering effect is achieved on the movement of the pushing plate 15 by arranging the telescopic rod 17 and the compression spring 16, the phenomenon that the pushing plate 15 moves too fast is avoided, the alarm 20 is crushed by the instant impact force, the safety performance of the equipment is further improved, the pushing plate 15 movably connected with the protection box 14 is fixedly arranged at the top of the lifting hook 19, the telescopic rods 17 movably connected with the protection box 14 are fixedly arranged at the left side and the right side of the bottom of the pushing plate 15, the telescopic rod 17 consists of a limiting rod and a moving rod, the bottom of the moving rod penetrates through and extends to the inside of the limiting rod and is movably connected with the, through using telescopic link 17, make equipment more stable, it is stronger to the protectiveness of device, the equal fixed mounting in the outside that the left and right sides of slurcam 15 bottom just is located telescopic link 17 has compression spring 16, compression spring 16's quantity is two, and two compression spring 16 are the symmetric distribution with the perpendicular bisector of guard box 14, telescopic link 17 is ninety degrees perpendicular installation with guard box 14, the interior diapire of guard box 14 and the back fixed mounting who is located lifting hook 19 have alarm 20, alarm 20's model can be KR-D2.

When the device is used, by arranging the alarm 20, when the material borne by the lifting hook 19 is overloaded, the push plate 15 moves down to a certain position and touches the alarm 20, so that the alarm 20 can realize a timely early warning effect, and the safety performance of the device is improved.

In summary, according to the overload protection device of the electric slewing crane, by arranging the lifting hook 19, when the equipment needs to lift an object, firstly, the lifting rope 13 is lengthened through the line box 10, so that the protection box 14 and the lifting hook 19 move downwards, the object can be hung on the lifting hook 19, at this time, the lifting hook 19 moves downwards under the force of pulling down the object, so as to drive the pushing plate 15 to move downwards, when the weight of the object is overloaded, the pushing plate 15 moves downwards to a certain position, and touches the switch of the alarm 20, so that the alarm 20 gives an alarm, so that the device realizes a timely early warning effect, the safety of the equipment is improved, by arranging the telescopic rod 17 and the compression spring 16, the movement of the pushing plate 15 is buffered to a certain extent, the pushing plate 15 is prevented from moving too fast, the alarm 20 is prevented from being crushed by instant impact force, and the safety performance of the equipment is further improved.

And, through setting up second motor 21, start second motor 21, make movable rod 23 rotate, thereby drive roller bearing 22 and rotate, can make movable plate 11 remove about on horizontal pole 12, make line case 10 can remove about stable, the stability of overall structure is improved, further the security of equipment has been improved, the shortcoming that the overload protection device who is often used for electronic gyration to hang in the existing market generally has had the security performance lower has been solved, use pressure sensor to carry out the analysis to goods and materials gravity usually, then give early warning device with information transfer, realize the overload protection to gyration hang through a series of structures, make the device early warning comparatively slow, lead to equipment to damage easily, make the relatively poor problem of practicality of device.

It is to be noted that 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 an overload protection device that electric slewing hung, includes bottom plate (1), its characterized in that: the top fixed mounting of bottom plate (1) has mobile jib (3), the equal fixed mounting in the left and right sides of mobile jib (3) has curb plate (2) with bottom plate (1) fixed connection, the top fixed mounting of mobile jib (3) has motor case (5), the inner chamber fixed mounting of motor case (5) has first motor (6), the output shaft fixed mounting of first motor (6) has one end to run through and extend to motor case (5) outside and with motor case (5) swing joint's dwang (7), the top fixed mounting in the dwang (7) outside has connecting loop bar (8), the left side fixed mounting of connecting loop bar (8) has horizontal pole (12), the top movable mounting in the mobile jib (3) outside has rotor plate (4), fixedly connected with backup pad (9) between rotor plate (4) and horizontal pole (12), the front and the back of horizontal pole (12) all movable mounting have movable plate (11), openly the rear end fixed mounting of movable plate (11) has second motor (21), the output shaft fixed mounting of second motor (21) has movable rod (23) with back movable plate (11) swing joint, the outside fixed mounting of movable rod (23) has roller bearing (22) with horizontal pole (12) swing joint, two the bottom fixedly connected with line case (10) of movable plate (11), the bottom movable mounting of line case (10) has lifting rope (13), the bottom movable mounting of lifting rope (13) has guard box (14), the bottom fixed mounting of guard box (14) has stop collar (18), the bottom movable mounting of stop collar (18) has one end to run through and extend to guard box (14) inner chamber and with guard box (14) swing joint's lifting hook (19), the top fixed mounting of lifting hook (19) has catch plate (15) with guard box (14) swing joint, the equal fixed mounting in the left and right sides of catch plate (15) bottom has telescopic link (17) with guard box (14) swing joint, the equal fixed mounting in the outside that the left and right sides of catch plate (15) bottom just is located telescopic link (17) has compression spring (16), the interior diapire of guard box (14) and the back fixed mounting who is located lifting hook (19) have alarm (20).

2. The overload protection device for the electric slewing crane according to claim 1, wherein: the quantity of compression spring (16) is two, and two compression spring (16) are the symmetric distribution with the perpendicular bisector of guard box (14), telescopic link (17) are the perpendicular installation of ninety degrees with guard box (14).

3. The overload protection device for the electric slewing crane according to claim 1, wherein: the top of the inner cavity of the protection box (14) is provided with an arc-shaped clamping groove, the arc-shaped clamping groove is matched with the lifting rope (13), and the bottom plate (1) is fixedly connected with the ground through a bolt.

4. The overload protection device for the electric slewing crane according to claim 1, wherein: the front of the cross rod (12) is provided with a sliding hole, the sliding hole is matched with the rolling shaft (22), and the movable rod (23) is movably connected with the movable plate (11) through a bearing.

5. The overload protection device for the electric slewing crane according to claim 1, wherein: the top of the rotating plate (4) is provided with a clamping hole, the clamping hole is matched with the main rod (3), and the connecting loop bar (8) and the cross bar (12) are vertically arranged at ninety degrees.

6. The overload protection device for the electric slewing crane according to claim 1, wherein: the top of motor case (5) is seted up the through-hole with dwang (7) looks adaptation, curb plate (2) are trapezoidal.