CN216737282U - Novel universal gantry crane - Google Patents

Abstract

The utility model relates to a novel universal portal crane, which comprises an I-shaped girder, a supporting leg structure, a ground beam and a cart travelling mechanism, wherein the front surface and the back surface of the top of the I-shaped girder are detachably and fixedly connected with fixed shafts, an electric hoist is also slidably connected onto the I-shaped girder, two ends of the electric hoist are fixedly sleeved with housings, the outer side of each housing is detachably and fixedly connected with a bearing box, two ends of each bearing box extend out of the I-shaped girder, each bearing box is of a box body structure with a cavity, a power supply and a controller are arranged in each bearing box, the power supply is electrically connected with the controller, and the controller is in signal connection with a wireless operating handle; the extension end of each bearing box is provided with a motor, the motors are respectively and electrically connected with a power supply and a controller, the output shafts of the motors can be detachably and fixedly connected with the sleeve ropes after penetrating through the bearing boxes, and the sleeve ropes are respectively sleeved on the fixed shafts.

Description

Novel universal gantry crane

Technical Field

The utility model belongs to the technical field of cranes, and particularly relates to a novel universal portal crane.

Background

The gantry crane is mainly used for loading and unloading outdoor goods yard, stock yard goods and bulk goods, and is arranged outdoors, so that the gantry crane is easily influenced by factors such as strong wind, dust, solid particle impurities and the like in the operation process, particularly an electric hoist of the gantry crane moves along an I-shaped main beam during operation, and the electric hoist is easily influenced by the factors and unstably operates in the moving process, so that the electric hoist is derailed and even falls off, therefore, the conventional gantry crane is generally provided with a device capable of preventing the electric hoist from falling off, and the conventional electric hoist falling-preventing device is characterized in that an arc-shaped frame which has the same length as the I-shaped main beam and is provided with an upward opening is arranged at the bottom of the I-shaped main beam, and the electric hoist can fall off the arc-shaped frame when falling accidentally, so that the electric hoist can be prevented from falling onto the ground, however, by adopting the mode, the height range of the electric hoist for lifting the goods can be reduced while the electric hoist can be prevented from falling, so that the defects and shortcomings in the prior art still exist.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a novel universal portal crane, which solves the problem that the falling prevention device of an electric hoist arranged on the existing portal crane can prevent the electric hoist from falling and can reduce the height range of the electric hoist for lifting goods.

In order to solve the problems, the utility model adopts the technical scheme that:

the utility model provides a novel universal gantry crane, includes I-shaped girder, the both ends of I-shaped girder all are provided with leg structure, and two sets of leg structure set up relatively, and every group leg structure bottom all is provided with the grade beam, all install cart running gear on the grade beam, its characterized in that: the front side and the back side of the top of the I-shaped girder are detachably and fixedly connected with fixed shafts which are parallel to and equal in length to the I-shaped girder, the I-shaped girder is also connected with an electric hoist capable of moving along the I-shaped girder in a sliding mode, two ends of the electric hoist are fixedly sleeved with housings, the outer side of each housing is detachably and fixedly connected with a bearing box positioned below the I-shaped girder, the bearing box is horizontally arranged, two ends of the bearing box extend out of the I-shaped girder, the bearing box is of a box body structure with a cavity, a power supply and a controller are installed in each bearing box, the power supply is electrically connected with the controller, and the controller is in signal connection with a wireless operating handle capable of controlling the controller respectively; the extension end of each bearing box is provided with a motor which is positioned in the bearing box and is vertically distributed, the motor positioned in the same bearing box is respectively and electrically connected with a power supply and a controller in the bearing box, an output shaft of the motor penetrates through the top of the bearing box and then can be detachably and fixedly connected with a ring-shaped sleeve rope, and the sleeve ropes are respectively sleeved on the fixed shaft.

Furthermore, a horizontally distributed laser range finder is vertically arranged on the side face, away from the housing, of each bearing box, the laser range finders are respectively and electrically connected with a controller and a power supply which are located on the same bearing box, vertical plates which are vertically distributed are fixedly connected to two ends of the I-shaped main beam, and laser sensing areas which are opposite to the laser range finders are respectively arranged on the vertical plates.

Furthermore, the two ends of each fixed shaft are respectively sleeved with a limiting sleeve capable of moving along the fixed shaft, each limiting sleeve is connected with a limiting bolt in a threaded mode, the limiting bolts are radially and parallelly arranged on the limiting sleeves, the heads of the limiting bolts are located outside the limiting sleeves, and the screw ends of the limiting bolts are abutted to the fixed shafts after penetrating through the limiting sleeves.

Furthermore, the bearing box is far away from an opening on one side of the housing, a box cover is arranged at the opening position on the side of the bearing box, first connecting bolts are connected between four corners of the box cover and the bearing box in a threaded mode, and the laser range finders are installed on the outer side face of the box cover respectively.

Further, the equal fixedly connected with L type connecting plate in both ends of every fixed axle, L type connecting plate includes vertical distribution's first connecting plate and second connecting plate, first connecting plate and the perpendicular fixed connection of second connecting plate structure as an organic whole, and equal threaded connection has the second connecting bolt between first connecting plate four corners and the I shape girder, the second connecting plate respectively with fixed axle fixed connection.

By adopting the technical scheme, the utility model has the beneficial effects that:

the I-shaped main beam, the supporting leg structure, the ground beam and the cart travelling mechanism are the same as the electric hoist and the conventional portal crane in composition structure, on the basis, the front surface and the back surface of the I-shaped main beam are respectively provided with the fixed shaft, the two ends of the electric hoist are respectively provided with the housing, the bearing box, the power supply, the controller, the motor and the rope sleeving, and the rope sleeving can slide along the fixed shaft in the normal operation process of the electric hoist; when the electric hoist falls accidentally, the rope sleeving can prevent the electric hoist from being separated from the I-shaped main beam so as to prevent the electric hoist from falling; because the two ends of the bearing box are provided with the sleeve ropes, the electric hoist can be prevented from falling when any sleeve rope in the four-corner position of the electric hoist acts, and meanwhile, the height range of the electric hoist for lifting goods can not be reduced; secondly, when electric block takes place to fall, can give the signal of a starter motor of controller through the wireless operating handle of artificial control, when the output shaft of motor rotated, will drive the lasso and take place to rotate and make the lasso twist into one and be in the locking state to can fix electric block's position, because electric block does not break away from the I shape girder, can reduce electric block like this and rock the risk of taking place to slide about the goods.

Drawings

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

FIG. 2 is an enlarged view of a portion A of FIG. 1;

FIG. 3 is a partially enlarged view of the structure at B in FIG. 1;

fig. 4 is a partially enlarged schematic structural view at C in fig. 1.

Reference numerals: 1. a fixed shaft; 2. a carrying case; 21. a box cover; 22. a first connecting bolt; 3. an L-shaped connecting plate; 31. a first connecting plate; 32. a second connecting plate; 33. a second connecting bolt; 4. a housing; 5. an I-shaped main beam; 6. a leg structure; 7. a ground beam; 8. a cart traveling mechanism; 9. an electric hoist; 10. a power source; 11. a controller; 12. a motor; 13. sleeving a rope; 14. a laser range finder; 15. a vertical plate; 16. a laser sensing area; 17. a limiting sleeve; 18. and a limiting bolt.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clear, embodiments of the present invention are described in further detail below with reference to the accompanying drawings.

As shown in fig. 1 to 4, the utility model provides a novel universal portal crane, which comprises an i-shaped main beam 5, wherein two ends of the i-shaped main beam 5 are respectively provided with a supporting leg structure 6, two groups of supporting leg structures 6 are oppositely arranged, each group of supporting leg structures 6 comprises two supporting legs which are obliquely and oppositely distributed, the bottom of each group of supporting leg structures 6 is provided with a ground beam 7, namely, the ground beam 7 is arranged between the bottom ends of the two supporting legs in each group of supporting leg structures 6, the ground beam 7 is provided with a cart travelling mechanism 8, and the i-shaped main beam 5, the supporting leg structures 6, the ground beams 7 and the cart travelling mechanism 8 have the same composition structure as that of the existing portal crane; the front side and the back side of the top of the I-shaped main beam 5 can be detachably and fixedly connected with a fixed shaft 1 which is parallel to the I-shaped main beam 5 and has the same length as the I-shaped main beam 5, the I-shaped main beam 5 is also connected with an electric hoist 9 capable of moving along the I-shaped main beam 5 in a sliding manner, two ends of the electric hoist 9 are fixedly sleeved with a housing 4, and particularly, two ends of a winding drum device of the electric hoist 9 are coaxially sleeved with the housing 4; the outer side of each housing 4 is detachably and fixedly connected with a bearing box 2 positioned below an I-shaped main beam 5 through bolts, the bearing box 2 is horizontally arranged, two ends of each bearing box 2 extend out of the I-shaped main beam 5, each bearing box 2 is of a box body structure with a cavity, a power supply 10 and a controller 11 are installed in each bearing box 2, the power supply 10 is electrically connected with the controller 11, the controller 11 is in signal connection with wireless operating handles capable of controlling the controllers 11 respectively, the wireless operating handles are not shown in the figure, the wireless operating handles can control the controllers 11 in the two bearing boxes 2 respectively, and the controllers 11 are PLC control systems in the prior art; the extending end of each carrying box 2 is provided with a motor 12 which is positioned in the carrying box 2 and is vertically distributed, the motor 12 positioned in the same carrying box 2 is respectively and electrically connected with a power supply 10 and a controller 11 in the carrying box 2, namely, the motors 12 in the same bearing box 2 run synchronously, the motors 12 are positive and negative rotating motors, the output shafts of the motors 12 can be detachably and fixedly connected with annular loop ropes 13 after penetrating the top of the bearing box 2, the loop ropes 13 are respectively sleeved on the fixed shaft 1, specifically, the loop ropes 13 are distributed in an inclined way, the loop ropes 13 are steel wire ropes, and connecting sheets are fixedly connected at the two ends of the loop ropes 13, after the rope body of the loop rope 13 is sleeved on the fixed shaft 1, the two connecting pieces and the output shaft of the corresponding motor 12 are sequentially penetrated through by the pin shaft, and then the loop rope 13 can be connected with the output shaft of the motor 12, so that the loop rope 13 can be conveniently disassembled and assembled.

By arranging the fixed shafts 1 on the front side and the back side of the I-shaped main beam 5, arranging the housing 4, the carrying box 2, the power supply 10, the controller 11, the motor 12 and the loop rope 13 on the two ends of the electric hoist 9, the loop rope 13 can slide along the fixed shafts 1 in the normal operation process of the electric hoist 9; when the electric hoist 9 accidentally falls, the loop rope 13 can prevent the electric hoist 9 from separating from the I-shaped main beam 5 to prevent the electric hoist 9 from falling; because the two ends of the bearing box 2 are respectively provided with the sleeve rope 13, when any one sleeve rope 13 in the four corners of the electric hoist 9 acts, the electric hoist 9 can be prevented from falling, and meanwhile, the height range of the electric hoist 9 for lifting goods can not be reduced; secondly, when electric block 9 takes place to fall, can give controller 11 a signal that starts motor 12 through the wireless operating handle of artificial control, when the output shaft of motor 12 rotated, will drive set rope 13 and take place to rotate and make set rope 13 twist into one and be in the locking state to can fix the position of electric block 9, because electric block 9 does not break away from I shape girder 5, can reduce the risk that electric block 9 rocked about because of the goods and take place the swift current car like this.

At present, the electric hoist 9 may slip off from the end of the i-shaped main beam 5 in a failure state, or may hit a limiting plate located at the end of the i-shaped main beam 5, therefore, as shown in fig. 1 and 2, a horizontally distributed laser range finder 14 is vertically installed on a side surface of each carrying case 2 away from the housing 4, the laser range finder 14 is electrically connected to a controller 11 and a power supply 10 located on the same carrying case 2, a vertically distributed vertical plate 15 is fixedly connected to both ends of the i-shaped main beam 5, a laser sensing area 16 opposite to the laser range finder 14 is respectively arranged on the vertical plate 15, specifically, a safe distance value between the end of the electric hoist 9 and the vertical plate 15 can be manually input in each controller 11, when the laser range finder 14 detects that the distance between the two is smaller than the safe distance range value, a signal for starting the motor 12 can be given to the controller 11, thereby make two noose 13 rotatory twists into one simultaneously and be in locking state in the messenger that is located electric block 9 with the end, can fix the position of electric block 9 like this to avoid electric block 9 to strike riser 15, thereby can reduce the risk of electric block 9 from the landing of I-shaped girder 5 tip.

Further, as shown in fig. 1 and 3, both ends of each fixed shaft 1 are sleeved with a limit sleeve 17 capable of moving along the fixed shaft 1, each limit sleeve 17 is connected with a limit bolt 18 in a threaded manner, the limit bolt 18 is radially parallel to the limit sleeve 17, the head of the limit bolt 18 is located outside the limit sleeve 17, the screw end of the limit bolt 18 penetrates through the limit sleeve 17 and then abuts against the fixed shaft 1, and specifically, by arranging the limit bolt 18, the position of the limit sleeve 17 can be conveniently fixed after the position of the limit sleeve 17 is adjusted on the fixed shaft 1; the limiting sleeve 17 is arranged to have the effect that when the locking force of the loop rope 13 is smaller than the sliding force of the electric hoist 9 in a failure state, the limiting sleeve 17 is mechanically limited, so that the electric hoist 9 can be further prevented from impacting the vertical plate 15.

Further, as shown in fig. 1 and fig. 2, an opening is formed in one side of the carrying case 2, which is far away from the housing 4, and a case cover 21 is disposed at the opening position of the side of the carrying case 2, first connecting bolts 22 are screwed between four corners of the case cover 21 and the carrying case 2, and the laser range finder 14 is respectively mounted on the outer side surface of the case cover 21, specifically, when the case cover 21 is connected with the carrying case 2, screw ends of the first connecting bolts 22 penetrate through the case cover 21 and are screwed with the carrying case 2, and heads of the first connecting bolts 22 are located outside the case cover 21 and abut against the case cover 21.

The specific mode that the fixed shaft 1 and the I-shaped main beam 5 are detachably and fixedly connected is as follows: as shown in fig. 1 and 4, both ends of each fixed shaft 1 are fixedly connected with an L-shaped connecting plate 3, each L-shaped connecting plate 3 includes a first connecting plate 31 and a second connecting plate 32 which are vertically distributed, the first connecting plate 31 and the second connecting plate 32 are vertically and fixedly connected into an integral structure, a second connecting bolt 33 is in threaded connection between each of four corners of the first connecting plate 31 and the i-shaped main beam 5, the second connecting plates 32 are respectively and fixedly connected with the fixed shafts 1, specifically, when the L-shaped connecting plates 3 are connected with the i-shaped main beam 5, a screw end of the second connecting bolt 33 passes through the first connecting plate 31 and then is in threaded connection with the i-shaped main beam 5, and a head of the second connecting bolt 33 is located outside the first connecting plate 31 and abuts against the first connecting plate 31, and by such arrangement, the fixed shafts 1 can be conveniently disassembled and assembled on and disassembled on the i-shaped main beam 5.

The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the present invention, but that various changes and modifications may be made without departing from the spirit and scope of the utility model, and the utility model is intended to be covered by the appended claims. The scope of the utility model is defined by the appended claims and equivalents.

Claims (5)

1. The utility model provides a novel universal gantry crane, includes I shape girder, the both ends of I shape girder all are provided with the landing leg structure, and two sets of landing leg structures set up relatively, and every landing leg structure bottom of group all is provided with the grade beam, all install cart running gear on the grade beam, its characterized in that: the front side and the back side of the top of the I-shaped girder are detachably and fixedly connected with fixed shafts which are parallel to and equal in length to the I-shaped girder, the I-shaped girder is also connected with an electric hoist capable of moving along the I-shaped girder in a sliding mode, two ends of the electric hoist are fixedly sleeved with housings, the outer side of each housing is detachably and fixedly connected with a bearing box positioned below the I-shaped girder, the bearing box is horizontally arranged, two ends of the bearing box extend out of the I-shaped girder, the bearing box is of a box body structure with a cavity, a power supply and a controller are installed in each bearing box, the power supply is electrically connected with the controller, and the controller is in signal connection with a wireless operating handle capable of controlling the controller respectively; the extension end of each bearing box is provided with a motor which is positioned in the bearing box and vertically distributed, the motor positioned in the same bearing box is electrically connected with a power supply and a controller in the bearing box respectively, an output shaft of the motor penetrates through the top of the bearing box and then can be detachably fixedly connected with a looped loop rope, and the looped rope is sleeved on the fixed shaft respectively.

2. A new universal gantry crane according to claim 1, characterized in that: the laser range finder is vertically arranged on the side face, away from the housing, of each bearing box, the laser range finders are electrically connected with a controller and a power supply which are located on the same bearing box respectively, vertical plates which are vertically distributed are fixedly connected to two ends of the I-shaped main beam, and laser sensing areas which are opposite to the laser range finders are arranged on the vertical plates respectively.

3. A new universal gantry crane according to claim 2, characterized in that: the both ends of every fixed axle all overlap and are equipped with the stop collar that can follow the fixed axle and remove, and equal threaded connection has the spacing bolt with the radial parallel arrangement of stop collar on every stop collar, outside the head of spacing bolt was located the stop collar, the screw rod end of spacing bolt passed behind the stop collar with the fixed axle butt.

4. A new universal gantry crane according to claim 2, characterized in that: the bearing box is far away from an opening on one side of the housing, a box cover is arranged at the opening position on the side of the bearing box, first connecting bolts are connected between four corners of the box cover and the bearing box in a threaded mode, and the laser range finders are installed on the outer side face of the box cover respectively.

5. A new universal gantry crane according to claim 1, characterized in that: the two ends of each fixed shaft are fixedly connected with L-shaped connecting plates, each L-shaped connecting plate comprises a first connecting plate and a second connecting plate which are vertically distributed, the first connecting plates and the second connecting plates are vertically and fixedly connected into a whole, second connecting bolts are connected between the four corners of each first connecting plate and the I-shaped main beam in a threaded mode, and the second connecting plates are fixedly connected with the fixed shafts respectively.

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