CN218088604U

CN218088604U - Gantry crane with gravity detection device main beam capable of ascending and descending

Info

Publication number: CN218088604U
Application number: CN202222460474.7U
Authority: CN
Inventors: 刘强武
Original assignee: Foshan Luzhixin Machinery Manufacturing Co ltd
Current assignee: Foshan Luzhixin Machinery Manufacturing Co ltd
Priority date: 2022-09-17
Filing date: 2022-09-17
Publication date: 2022-12-20
Anticipated expiration: 2032-09-17

Abstract

The utility model discloses a gantry crane with gravity detection device girder liftable, support including two symmetric distributions, fixed mounting has the support sleeve on the support, and the top fixed mounting of support has the speed reducer, and support sleeve inside is pegged graft and is had the lead screw, and support sleeve's top fixedly connected with stand, one side fixed mounting of stand has gravity detection device, is provided with the girder between two supports, and the girder both ends are respectively through L shape pole fixed mounting on being used for carrying out the gravity detection device who weighs to the girder, and the top fixed mounting of stand has buzzer siren. The utility model relates to a gantry crane technical field, this gantry crane with gravity detection device girder liftable can adjust the height of dolly on the girder, avoids the wire rope overlength of hoist and mount on the dolly, leads to article to take place to rock, can detect bearing and hanging gravity simultaneously, and there is the potential safety hazard in the overweight existence of load when avoiding the girder to lift by crane.

Description

Gantry crane with gravity detection device main beam capable of ascending and descending

Technical Field

The utility model relates to a gantry crane technical field specifically is a gantry crane with gravity detection device girder liftable.

Background

The portal crane is a bridge crane with a bridge frame supported on a ground track through supporting legs at two sides, and structurally comprises a portal frame, a cart running mechanism, a hoisting trolley, an electric part and the like; at present, gantry cranes at home and abroad generally use trolleys on main beams to lift by steel wire ropes, and the lifting height during lifting is generally determined by the winding and unwinding lengths of the steel wire ropes as the main beams are generally fixed.

The prior art has the following defects and shortcomings: 1. when the existing portal crane is used, the main beam on the existing portal crane cannot be lifted, and if the existing portal crane works, the steel wire rope on the trolley is too long, so that articles can shake, the stability is reduced, and the use safety is influenced. 2. The existing gantry crane generally does not have a device for detecting the gravity of a load to be lifted, and if the load is too heavy when the load is lifted to the load or the torsion exceeds the standard in the operation process, the steel wire rope can slip or even break, so that great potential safety hazards exist.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art, the utility model provides a gantry crane with gravity detection device girder liftable has solved current problem.

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: a gantry crane with a gravity detection device and a liftable girder comprises two symmetrically distributed supports, wherein a support sleeve is fixedly installed on each support, a speed reducer is fixedly installed at the top of each support, a lead screw is inserted into each support sleeve, the top end of each support sleeve is fixedly connected with an upright post, a gravity detection device is fixedly installed on one side of each upright post, a girder is arranged between the two supports, two ends of each girder are respectively and fixedly installed on the gravity detection device for weighing the girder through L-shaped rods, a buzzer alarm is fixedly installed at the top end of each upright post, and a controller is fixedly installed on one side of each upright post;

the speed reducer comprises a speed reducer shell, a worm wheel and a worm are arranged in the speed reducer shell, the worm is located on one side of the worm wheel and is in threaded connection with the worm wheel, the screw rod is vertically inserted into the worm wheel and is in threaded connection with the worm wheel, and the screw rod vertically penetrates through the speed reducer shell.

Preferably, the gravity detection device is internally provided with a limiting mounting groove, the horizontal end of the L-shaped rod is fixedly connected with the main beam, the vertical end is movably clamped inside the limiting mounting groove, a pressure sensor is fixedly mounted on the inner wall of the bottom of the gravity detection device, and the bottom of the vertical end of the L-shaped rod is tightly pressed on the pressure sensor.

Preferably, a cushion pad is fixedly adhered to the inner wall of the limit mounting groove.

Preferably, a motor is fixedly mounted on one side of the speed reducer, the worm is fixedly mounted at the output end of the motor, and the motor is electrically connected with an external power supply through a wire.

Preferably, the signal output end of the pressure sensor is connected with the signal input end of the controller, and the signal input end of the buzzer alarm is connected with the signal output end of the controller.

Preferably, the bottom of the support is fixedly provided with a pulley, and the support slides on a ground track through the pulley.

Advantageous effects

The utility model provides a gantry crane with gravity detection device girder liftable. Compared with the prior art, the method has the following beneficial effects:

(1) This gantry crane with gravity detection device girder liftable, install support sleeve and speed reducer on the support, the vertical grafting of lead screw is inside support sleeve and speed reducer, inside worm wheel and the worm of being provided with of speed reducer casing, lead screw and worm wheel threaded connection, and then rotate through starter motor drive worm and drive the worm wheel and rotate, it goes up and down to drive the lead screw, and then drive lead screw top stand and go up and down, and then can drive stand one side girder and go up and down, the height of dolly on the adjustment girder, the flexibility is improved, avoid the wire rope overlength of hoist and mount on the dolly, lead to article to take place to rock.

(2) This kind of gantry crane with gravity detection device girder liftable, inside the spacing mounting groove of girder both ends on gravity detection device through L shape pole joint, L shape pole bottom compresses tightly on the pressure sensor of gravity detection device bottom inner wall, and then can detect the pressure of L shape pole through pressure sensor, and then can detect L shape pole one side girder whole bearing and hanging gravity, and then load overweight when avoiding girder bottom trolley to lift by crane through wire rope, or torsion exceeds standard in operation process, cause wire rope to skid or even fracture, there is the problem of potential safety hazard, simultaneously through the top installation buzzer siren of stand, automatic start buzzer siren sends the warning when receiving pressure sensor detection gravity overload data signal through controller control, and then in time inform the user to avoid taking place the incident.

Drawings

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

fig. 2 is a schematic view of the internal structure of the speed reducer of the present invention;

fig. 3 is a schematic structural diagram of a portion a in fig. 1 according to the present invention.

In the figure: 1. a support; 2. a support sleeve; 3. a speed reducer; 31. a speed reducer housing; 32. a worm gear; 33. a worm; 4. a screw rod; 5. a column; 6. a gravity detection device; 61. a limiting mounting groove; 62. a cushion pad; 63. a pressure sensor; 7. a main beam; 8. an L-shaped rod; 9. a buzzer alarm; 10. a controller; 11. an electric motor.

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 efforts all belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides two technical solutions:

the first embodiment is as follows:

a gantry crane with a gravity detection device and a liftable girder comprises two symmetrically distributed supports 1, wherein a support sleeve 2 is fixedly installed on each support 1, a speed reducer 3 is fixedly installed at the top of each support 1, a lead screw 4 is inserted into each support sleeve 2, an upright post 5 is fixedly connected to the top end of each support sleeve 2, a gravity detection device 6 is fixedly installed on one side of each upright post 5, a girder 7 is arranged between the two supports 1, two ends of each girder 7 are respectively and fixedly installed on the gravity detection device 6 for weighing the girder 7 through L-shaped rods 8, a buzzer alarm 9 is fixedly installed at the top end of each upright post 5, and a controller 10 is fixedly installed on one side of each upright post 5;

the speed reducer 3 comprises a speed reducer shell 31, a worm wheel 32 and a worm 33 are arranged inside the speed reducer shell 31, the worm 33 is located on one side of the worm wheel 32 and is in threaded connection with the worm wheel 32, the screw rod 4 is vertically inserted inside the worm wheel 32 and is in threaded connection with the worm wheel 32, and the screw rod 4 vertically penetrates through the speed reducer shell 31.

The second embodiment:

a gantry crane with a gravity detection device and a liftable girder comprises two symmetrically distributed supports 1, a support sleeve 2 is fixedly installed on each support 1, a speed reducer 3 is fixedly installed at the top of each support 1, each speed reducer 3 comprises a speed reducer shell 31, a worm wheel 32 and a worm 33 are arranged inside each speed reducer shell 31, each worm 33 is located on one side of each worm wheel 32 and is in threaded connection with each worm wheel 32, a screw rod 4 is vertically inserted inside each worm wheel 32 and is in threaded connection with each worm wheel 32, each screw rod 4 vertically penetrates through each speed reducer shell 31, a motor 11 is fixedly installed on one side of each speed reducer 3, each worm 33 is fixedly installed at the output end of each motor 11, each motor 11 is electrically connected with an external power supply through a lead, and each motor 11 drives each worm 33 to rotate through electric power; the screw rod 4 is inserted into the supporting sleeve 2, the stand column 5 is fixedly connected to the top end of the supporting sleeve 2, the gravity detection device 6 is fixedly installed on one side of the stand column 5, a main beam 7 is arranged between the two supports 1, two ends of the main beam 7 are respectively and fixedly installed on the gravity detection device 6 used for weighing the main beam 7 through the L-shaped rods 8, a limiting installation groove 61 is formed in the gravity detection device 6, a cushion pad 62 is fixedly adhered to the inner wall of the limiting installation groove 61, and the L-shaped rods 8 can be buffered after being clamped in the limiting installation groove 61 to reduce the shaking of the L-shaped rods 8 clamped in the limiting installation groove 61; the horizontal end of the L-shaped rod 8 is fixedly connected with the main beam 7, the vertical end is movably clamped in the limiting installation groove 61, the inner wall of the bottom of the gravity detection device 6 is fixedly provided with a pressure sensor 63, the bottom of the vertical end of the L-shaped rod 8 is tightly pressed on the pressure sensor 63, the gravity detection device 6 is used for supporting the L-shaped rod 8, and meanwhile, the pressure sensor 63 can be used for detecting the pressure of the L-shaped rod 8; the top end of the upright post 5 is fixedly provided with a buzzer alarm 9, one side of the upright post 5 is fixedly provided with a controller 10, the signal output end of a pressure sensor 63 is connected with the signal input end of the controller 10, the signal input end of the buzzer alarm 9 is connected with the signal output end of the controller 10, the pressure sensor 63 can transmit gravity detection data to the controller 10, and the buzzer alarm 9 is automatically controlled to give an alarm for reminding when the vehicle is overloaded after the data is collected by the controller 10; the bottom of support 1 is fixed with the pulley, and support 1 slides on the ground track through the pulley for move support 1.

When the portal crane with the liftable main beam of the gravity detection device is used, the support sleeve 2 and the speed reducer 3 are installed on the support 1, the lead screw 4 is vertically inserted into the support sleeve 2 and the speed reducer 3, the worm wheel 32 and the worm 33 are arranged inside the speed reducer shell 31, the lead screw 4 is in threaded connection with the worm wheel 32, the worm 33 is driven to rotate by the starting motor 11 to drive the worm wheel 32 to rotate, the lead screw 4 is driven to lift, the upright post 5 at the top end of the lead screw 4 is driven to lift, the main beam 7 at one side of the upright post 5 can be driven to lift, the height of a trolley on the main beam 7 is adjusted, the flexibility is improved, and the phenomenon that a steel wire rope hoisted on the trolley is too long to cause articles to shake is avoided; in addition, the two ends of the main beam 7 are clamped inside a limiting mounting groove 61 on the gravity detection device 6 through an L-shaped rod 8, the bottom end of the L-shaped rod 8 is tightly pressed on a pressure sensor 63 on the inner wall of the bottom of the gravity detection device 6, and further the pressure of the L-shaped rod 8 can be detected through the pressure sensor 63, so that the overall bearing and hanging gravity of the main beam 7 on one side of the L-shaped rod 8 can be detected, and further the overweight load of a crane trolley at the bottom of the main beam 7 when the crane trolley is lifted through a steel wire rope is avoided, or the torsion exceeds the standard in the operation process, the steel wire rope is caused to slip or even break, and the potential safety hazard exists, meanwhile, a buzzer alarm 9 is installed at the top of the upright post 5, the controller 10 controls the buzzer alarm 9 to be automatically started to send out an alarm when the pressure sensor 63 detects a gravity overload data signal, and further the user is timely informed of avoiding safety accidents.

And those not described in detail in this specification are well within the skill of the art.

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.

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 gantry crane with gravity detection device girder liftable, includes support (1) of two symmetric distributions, its characterized in that: the weighing device is characterized in that a support sleeve (2) is fixedly mounted on the support (1), a speed reducer (3) is fixedly mounted at the top of the support (1), a lead screw (4) is inserted into the support sleeve (2), an upright (5) is fixedly connected to the top end of the support sleeve (2), a gravity detection device (6) is fixedly mounted on one side of the upright (5), a main beam (7) is arranged between the two supports (1), two ends of the main beam (7) are fixedly mounted on the gravity detection device (6) for weighing the main beam (7) through L-shaped rods (8), a buzzer alarm (9) is fixedly mounted on the top end of the upright (5), and a controller (10) is fixedly mounted on one side of the upright (5);

the speed reducer (3) comprises a speed reducer shell (31), a worm wheel (32) and a worm (33) are arranged inside the speed reducer shell (31), the worm (33) is located on one side of the worm wheel (32) and is in threaded connection with the worm wheel (32), the screw rod (4) is vertically inserted into the worm wheel (32) and is in threaded connection with the worm wheel (32), and the screw rod (4) vertically penetrates through the speed reducer shell (31).

2. The gantry crane with the liftable girder of the gravity detection device according to claim 1, wherein: limiting mounting groove (61) have been seted up to gravity detection device (6) inside, L shape pole (8) horizontal end and girder (7) fixed connection, vertical end activity joint is inside limiting mounting groove (61), the bottom inner wall fixed mounting of gravity detection device (6) has pressure sensor (63), the vertical end bottom of L shape pole (8) compresses tightly on pressure sensor (63).

3. The gantry crane with the liftable girder of the gravity detection device according to claim 2, wherein: and a cushion pad (62) is fixedly adhered to the inner wall of the limiting installation groove (61).

4. The gantry crane with the liftable girder of the gravity detection device according to claim 1, wherein: one side fixed mounting of speed reducer (3) has motor (11), worm (33) fixed mounting is at the output of motor (11), motor (11) pass through wire and external power source electric connection.

5. The gantry crane with the liftable girder of the gravity detection device according to claim 2, wherein: the signal output end of the pressure sensor (63) is connected with the signal input end of the controller (10), and the signal input end of the buzzer alarm (9) is connected with the signal output end of the controller (10).

6. The gantry crane with the liftable girder of the gravity detection device according to claim 1, wherein: the bottom of support (1) is fixed mounting has the pulley, support (1) passes through the pulley slides on the ground track.