CN117533959A - Gantry crane capable of changing running track - Google Patents

Abstract

The application discloses convertible orbital gantry crane that traveles belongs to the technical field of hoist, it includes the hoist body, track one and track two mutually perpendicular, the hoist body includes the girder that the level set up, the both ends bottom of girder is provided with the supporting legs respectively, the bottom of supporting legs is fixed with the backup pad, the universal wheel is installed to the bottom of backup pad, four holding tanks have been seted up to the bottom surface of backup pad, the backup pad is installed the mounting bracket along vertical sliding through the holding tank, rotate on the mounting bracket and install the axis of rotation, four axes of rotation are two axis of rotation one and two axis of rotation two respectively, axis of rotation one mutually perpendicular with track one, axis of rotation two mutually perpendicular with track, the outer peripheral cover of axis of rotation one is established and is fixed with leading wheel one, the outer peripheral cover of axis of rotation two is established and is fixed with leading wheel two. This application has the higher effect of change track efficiency.

Description

Gantry crane capable of changing running track

Technical Field

The application relates to the technical field of cranes, in particular to a portal crane capable of changing a running track.

Background

A crane refers to a multi-action crane that vertically lifts and horizontally carries weights within a certain range. The portal crane is generally applied to loading and unloading articles at ports, workshops, warehouses, open storage yards and the like, and the metal structure of the portal crane is like a portal frame, and two supporting feet are arranged below a bearing main beam and can walk along a track on the ground.

The bottom of a gantry crane is usually provided with rollers moving on rails so that the gantry crane always moves along the length of the rails, but during use it may be necessary to change rails on two mutually perpendicular rails, a common rail change being to turn the rollers by 90 °, so that the rollers can move along the length of the other perpendicular rail. However, when the direction of the roller is rotated, the gantry crane is lifted by the hydraulic cylinder, so that the roller is rotated, and the replacement efficiency is low.

Disclosure of Invention

In order to solve the problem that the track replacement efficiency of the gantry crane is low, the application provides the gantry crane with the changeable running track.

The portal crane capable of changing the running track adopts the following technical scheme:

the utility model provides a convertible orbital gantry crane that traveles, includes crane body, track one and track two, track one with track two mutually perpendicular, the crane body includes the girder that the level set up, the both ends bottom of girder is provided with the supporting legs respectively, the bottom of supporting legs is fixed with the backup pad, the universal wheel is installed to the bottom of backup pad, four holding tanks have been seted up to the bottom surface of backup pad, the backup pad passes through the holding tank is installed along vertical sliding, the axis of rotation is installed in the rotation on the mounting bracket, four the axis of rotation is two axis of rotation and two axis of rotation two respectively, axis of rotation with track one mutually perpendicular, axis of rotation two with track two mutually perpendicular, the outer peripheral cover of axis of rotation one is established and is fixed with leading wheel one, the outer peripheral cover of axis of rotation two is established and is fixed with leading wheel two.

By adopting the technical scheme, when the crane body moves along the first track, the rotating shaft moves downwards, so that the first guide wheel is positioned in the first track, and the second guide wheel is positioned in the accommodating groove, so that the support plate moves along the length direction of the first track; when the crane body moves to the joint of the first track and the second track, the rotating shaft moves downwards, the guide wheel II contacts with the ground, the rotating shaft moves upwards, the guide wheel I is contained in the containing groove, the guide wheel II is located in the second track and drives the crane body to move along the length direction of the second track, and therefore rail replacement of the crane body is achieved, and replacement efficiency is high.

Preferably, the mounting bracket comprises a transverse plate, the transverse plate with the inner wall of holding tank is laminated mutually, the bottom surface of transverse plate is fixed with two risers, the axis of rotation is rotated and is installed two between the riser, the top surface of transverse plate is fixed with the threaded rod, the rotation groove has been seted up to the interior top surface of holding tank, rotate the inslot rotation and install the rotation sleeve, it locates to rotate the sleeve cover the periphery of threaded rod, the threaded rod with rotate sleeve screw thread transmission cooperation, be provided with in the backup pad and be used for the drive rotate sleeve pivoted rotating assembly.

Through adopting above-mentioned technical scheme, the diaphragm provides the guide effect to the threaded rod for the threaded rod is along vertical removal all the time, utilizes rotating assembly to drive and rotates the sleeve rotation, rotates the sleeve and drives the threaded rod along vertical removal, thereby drives leading wheel one and leading wheel two along vertical removal.

Preferably, the threaded rod is a first threaded rod and a second threaded rod, the rotation direction of the first threaded rod is opposite to that of the second threaded rod, the first threaded rod corresponds to the first guide wheel, and the second threaded rod corresponds to the second guide wheel; the rotating assembly comprises a worm which is rotatably arranged in the supporting plate, a worm wheel which is meshed with the worm is sleeved and fixed on the outer peripheral surface of the rotating sleeve, a driving motor is arranged in the supporting plate, and the output end of the driving motor is fixedly connected with the end part of the worm.

Through adopting above-mentioned technical scheme, start driving motor, driving motor drives the worm and rotates, and the worm drives the worm wheel and rotates, and the worm wheel drives and rotates the sleeve and rotate, because the rotation direction of threaded rod one and threaded rod two is opposite, when rotating sleeve synchronous rotation, the removal opposite direction of threaded rod one and threaded rod two, and the leading wheel moves upwards when moving downwards, and the leading wheel moves downwards when upwards to realize the change of leading wheel one and leading wheel two.

Preferably, the first vertical plate and the second vertical plate are respectively arranged on the first vertical plate and the second vertical plate, the first vertical plate is arranged on two sides of the first rotating shaft, the second vertical plate is arranged on two sides of the second rotating shaft, the synchronous sleeve is rotationally arranged in the supporting plate, the first motor is arranged on the supporting plate, the output end of the first motor is fixedly connected with the end face of the synchronous sleeve, the synchronous block is slidingly arranged in the synchronous sleeve along the length direction of the synchronous sleeve, and the end face of the first rotating shaft, which is close to the synchronous sleeve, is provided with a synchronous groove (, which is used for inserting the synchronous block.

Through adopting above-mentioned technical scheme, when the mounting bracket drives first downwardly moving of axis of rotation, and the leading wheel one is located track one, inserts the synchronizing block and locates the synchronization inslot, and starter motor one drives synchronous sleeve and rotates, and synchronous sleeve drives the synchronizing block and rotates, and then drives first rotation axis of rotation to make the leading wheel one roll in track one, and then drive the hoist body and remove along the length direction of track one.

Preferably, the inner wall of the synchronizing sleeve is provided with a sliding groove, the side surface of the synchronizing block is fixedly provided with a sliding block, the sliding block is matched with the synchronizing sleeve in a sliding manner along the length direction of the synchronizing sleeve through the sliding groove, the side surface of the sliding block, which is far away from the first rotating shaft, is fixedly provided with a synchronizing spring, and one end of the synchronizing spring, which is far away from the sliding block, is fixedly connected with the inner wall of the sliding groove.

Through adopting above-mentioned technical scheme, when the leading wheel moves down to contact with track one, the synchronization groove of axis of rotation one aligns with synchronous sleeve, and starter motor one, and motor one drives synchronous sleeve and rotates, and when synchronous sleeve rotated to synchronous piece and synchronization inslot when synchronous groove alignment, the synchronous piece inserts in the synchronization inslot under the elasticity effect of synchronizing spring to realize the synchronous rotation of axis of rotation one and synchronous sleeve.

Preferably, the end face, far away from the first rotating shaft, of the synchronizing block is fixedly provided with a first magnetic block, the inner wall, far away from the first rotating shaft, of the synchronizing sleeve is fixedly provided with a first electromagnet, and the first electromagnet can attract the first magnetic block.

Through adopting above-mentioned technical scheme, when needing to change the track, carry out the circular telegram to electro-magnet one, electro-magnet one carries out the actuation to magnet one, and a magnet one drives the synchronizing block and moves towards the direction of keeping away from axis of rotation one for the synchronizing block breaks away from the synchronizing groove, so that the mounting bracket drives the leading wheel and upwards moves.

Preferably, a first moving plate is embedded and fixed on the side surface of the synchronizing block, a first fixed plate is embedded and fixed on the inner wall of the synchronizing sleeve, the first moving plate can be in electric contact with the first fixed plate, the first fixed plate is electrically connected with a power supply, and the first moving plate is electrically connected with the first motor.

By adopting the technical scheme, when the first electromagnet is electrified, the first electromagnet is attracted to the first magnetic block, at the moment, the first moving sheet is separated from the first stator, and the first motor is powered off; when the electromagnet I is powered off, the synchronous block moves towards the direction close to the rotating shaft I under the action of the elasticity of the synchronous spring, the moving plate I is electrically contacted with the fixed plate I, the motor I is powered on to work, and the motor I drives the synchronous sleeve to rotate.

Preferably, the connecting rod is installed in the rotation of backup pad, install motor two in the backup pad, motor two's output with the tip fixed connection of connecting rod, the outer peripheral face cover of connecting rod is established and is fixed with bevel gear one, the dwang is installed in the rotation of backup pad, the outer peripheral face cover of dwang establish be fixed with bevel gear one intermeshing's bevel gear two, the spread groove has been seted up respectively at the both ends of dwang, the dwang passes through the spread groove is followed the length direction of dwang slides and installs the connecting block, the axis of rotation two is close to the constant head tank that is used for inserting the connecting block has been seted up to the terminal surface of dwang.

Through adopting above-mentioned technical scheme, when the mounting bracket drives axis of rotation two downwardly moving, and axis of rotation two and dwang coaxial setting, insert the connecting block and establish in the constant head tank, starter motor two drives the connecting rod and rotates, and the connecting rod drives bevel gear one and rotates, and bevel gear one drives bevel gear two and rotate, and bevel gear two drives the dwang and rotates, and the dwang passes through the connecting block and drives axis of rotation two to make the leading wheel two roll in track two, and then drive the hoist body and remove along track two's length direction.

Preferably, a reset block is fixed on the side surface of the connecting block, a reset groove is formed in the inner wall of the connecting groove, the reset block is matched with the rotating rod in a sliding manner along the length direction of the rotating rod through the reset groove, a reset spring is fixed on the side surface of the second rotating shaft, which is far away from the rotating block, and one end of the reset spring, which is far away from the reset block, is fixedly connected with the inner wall of the reset groove.

Through adopting above-mentioned technical scheme, when axis of rotation two aligns with the dwang, the connecting block moves towards the direction that is close to axis of rotation two under reset spring's elasticity effect, and the dwang drives the connecting block and rotates, and when the connecting block rotated to align with the constant head tank, the connecting block inserts in the constant head tank to realize axis of rotation two and dwang's synchronous rotation.

Preferably, a second magnetic block is fixed on the side surface of the connecting block, which is far away from the second rotating shaft, and an electromagnet second for attracting the second magnetic block is fixed on the inner wall of the connecting groove, which is far away from the second rotating shaft; the side of connecting block inlays and establishes and be fixed with the moving plate two, the inner wall of spread groove inlays and establishes and be fixed with the stator two, the moving plate two can with stator two electrical contact, stator two is connected with the power electricity, the moving plate two with motor two electricity is connected.

Through adopting above-mentioned technical scheme, when electro-magnet two is circular telegram, electro-magnet two is to magnet two actuation, and magnet two drives the connecting block and moves towards the direction that is close to axis of rotation two, and moving sheet two and stator two electrical contact, motor two circular telegram work, and then drive the dwang and rotate.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the crane body moves along the first track, the rotating shaft moves downwards, so that the first guide wheel is positioned in the first track, and the second guide wheel is positioned in the accommodating groove, so that the support plate moves along the length direction of the first track; when the crane body moves to the joint of the first rail and the second rail, the rotating shaft moves downwards, so that the guide wheel moves downwards, the guide wheel II contacts with the ground, and moves upwards, so that the guide wheel I is contained in the containing groove, and the guide wheel II is located in the second rail and drives the crane body to move along the length direction of the second rail, thereby realizing rail replacement of the crane body, and the replacement efficiency is higher;

2. starting a driving motor, driving the worm to rotate, and driving the worm wheel to rotate by the worm wheel, wherein the worm wheel drives the rotating sleeve to rotate, and when the rotating sleeve synchronously rotates, the first threaded rod and the second threaded rod move in opposite directions, and when the guide wheel moves downwards, the guide wheel moves upwards, and when the guide wheel moves upwards, the guide wheel moves downwards, so that the first guide wheel and the second guide wheel are replaced;

3. when the installation frame drives the first rotating shaft to move downwards, and the first guide wheel is located in the first track, the synchronous block is inserted into the synchronous groove, the first motor is started, the first motor drives the synchronous sleeve to rotate, the synchronous sleeve drives the synchronous block to rotate, and then the first rotating shaft is driven to rotate, so that the first guide wheel rolls in the first track, and then the crane body is driven to move along the length direction of the first track.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a gantry crane with changeable travel tracks according to an embodiment of the present application.

Fig. 2 is a schematic structural view of a support plate in a gantry crane capable of changing a travel track according to an embodiment of the present application.

Fig. 3 is a cross-sectional view of a support plate in a portal crane with convertible travel rail in accordance with an embodiment of the present application.

Fig. 4 is a schematic view of the installation of a rotating shaft and a synchronizing sleeve in a gantry crane with changeable travel tracks according to an embodiment of the present application.

Fig. 5 is an enlarged schematic view at a in fig. 4.

Fig. 6 is a schematic installation diagram of a second rotating shaft and a rotating rod of the gantry crane capable of changing the running track according to the embodiment of the present application.

Fig. 7 is an enlarged schematic view at B in fig. 6.

Reference numerals: 1. a crane body; 11. a main beam; 12. supporting feet; 13. track one; 14. a second track; 2. a support plate; 21. a universal wheel; 22. a receiving groove; 23. a worm; 24. a worm wheel; 25. a driving motor; 3. a mounting frame; 31. a cross plate; 32. a riser; 321. a first vertical plate; 322. a second vertical plate; 33. a rotating shaft; 331. a first rotating shaft; 332. a second rotating shaft; 34. a first guide wheel; 35. a second guide wheel; 4. rotating the sleeve; 41. a rotating groove; 42. a threaded rod; 421. a first threaded rod; 422. a second threaded rod; 5. a synchronizing sleeve; 51. a mounting groove; 52. a first motor; 53. a synchronization block; 54. a synchronization groove; 55. a slide block; 56. a chute; 57. a synchronizing spring; 6. an electromagnet I; 61. a first magnetic block; 62. a stator I; 63. a first moving plate; 7. a connecting rod; 71. a second motor; 72. a rotating lever; 73. bevel gears I; 74. bevel gears II; 75. a connecting groove; 76. a connecting block; 77. a positioning groove; 8. a reset block; 81. a reset groove; 82. a return spring; 83. an electromagnet II; 84. a second magnetic block; 85. a second stator; 86. and a second moving plate.

Detailed Description

The present application is described in further detail below in conjunction with figures 1-7.

The embodiment of the application discloses a portal crane capable of changing a running track. Referring to fig. 1 and 2, the gantry crane capable of changing a traveling track includes a crane body 1, a first track 13 and a second track 14, wherein the first track 13 and the second track 14 are perpendicular to each other. The crane body 1 comprises a main beam 11 which is horizontally arranged, supporting feet 12 are respectively arranged at the bottoms of the two ends of the main beam 11, and a supporting plate 2 is fixed at the bottom of the supporting feet 12. Two universal wheels 21 are installed on the bottom surface of the supporting plate 2, and the two universal wheels 21 are respectively positioned at corners of the bottom surface of the side, away from the main beam 11, of the supporting plate 2.

Referring to fig. 1, 2 and 3, four receiving grooves 22 are formed in the bottom surface of the support plate 2, and the support plate 2 is vertically slidably mounted with the mounting frame 3 through the receiving grooves 22. The mounting frame 3 comprises a transverse plate 31, the transverse plate 31 is attached to the inner wall of the accommodating groove 22, and the transverse plate 31 is in sliding fit with the supporting plate 2 along the vertical direction through the accommodating groove 22. Two mutually parallel risers 32 are fixed on the bottom surface of the transverse plate 31, and a horizontally arranged rotating shaft 33 is rotatably arranged between the two risers 32. The four rotating shafts 33 are two first rotating shafts 331 and two second rotating shafts 332, respectively, and the two second rotating shafts 332 are located inside the two first rotating shafts 331. The first rotating shaft 331 is perpendicular to the first track 13, the first guide wheel 34 is sleeved and fixed on the outer peripheral surface of the first rotating shaft 331, and the first guide wheel 34 can roll in the first track 13. The second rotating shaft 332 is perpendicular to the second track 14, the second guide wheel 35 is sleeved and fixed on the outer peripheral surface of the second rotating shaft 332, and the second guide wheel 35 can roll in the second track 14.

When the first guide wheel 34 is positioned in the first track 13 and the second guide wheel 35 is retracted, the first guide wheel 34 drives the support plate 2 to move, so that the crane body 1 is driven to move along the length direction of the first track 13; when the second guide wheel 35 is positioned in the second track 14 and the first guide wheel 34 is retracted, the second guide wheel 35 drives the support plate 2 to move, so as to drive the crane body 1 to move along the length direction of the second track 14.

Referring to fig. 3, a rotation groove 41 is formed in the inner top surface of the accommodation groove 22, and a rotation sleeve 4 is rotatably installed in the rotation groove 41. A worm 23 which is horizontally arranged is rotatably arranged in the supporting plate 2, and a worm wheel 24 which is meshed with the worm 23 is fixedly sleeved on the outer peripheral surface of the rotating sleeve 4. The supporting plate 2 is provided with a driving motor 25, and the output end of the driving motor 25 is fixedly connected with the end part of the worm 23. The top surface of diaphragm 31 is fixed with the threaded rod 42 of vertical setting, and the periphery of threaded rod 42 is located to rotation sleeve 4 cover, and threaded rod 42 and rotation sleeve 4 screw drive cooperation. The threaded rods 42 are a first threaded rod 421 and a second threaded rod 422, respectively, and the rotation direction of the first threaded rod 421 is opposite to the rotation direction of the second threaded rod 422. The first threaded rod 421 corresponds to the first guide wheel 34, and the second threaded rod 422 corresponds to the second guide wheel 35.

When the support plate 2 moves to the junction of the first track 13 and the second track 14, the driving motor 25 is started, the driving motor 25 drives the worm 23 to rotate, the worm 23 drives the worm wheel 24 to rotate, and the worm wheel 24 drives the rotating sleeve 4 to synchronously rotate, so that the first guide wheel 34 moves upwards, the second guide wheel 35 is stored in the accommodating groove 22, meanwhile, the second guide wheel 35 moves downwards, the second guide wheel 35 contacts with the bottom surface of the second track 14 and drives the crane body 1 to move along the length direction of the second track 14, and therefore rail replacement is achieved.

Referring to fig. 3, 4 and 5, the riser 32 is a first riser 321 and a second riser 322, respectively, the first riser 321 is located at two sides of the first rotation axis 331, and the second riser 322 is located at two sides of the second rotation axis 332. The support plate 2 is provided therein with a mounting groove 51 communicating with the accommodation groove 22, and the mounting groove 51 is rotatably provided with a synchronizing sleeve 5, the synchronizing sleeve 5 being disposed along the width direction of the support plate 2. The first motor 52 is installed on the support plate 2, and the output end of the first motor 52 is fixedly connected with the end face, far away from the first rotating shaft 331, of the synchronizing sleeve 5. The synchronizing sleeve 5 is internally provided with a synchronizing block 53 in a sliding manner along the width direction of the supporting plate 2, and the end face of the first rotating shaft 331, which is close to the synchronizing sleeve 5, is provided with a synchronizing groove 54 for inserting the synchronizing block 53.

Referring to fig. 4 and 5, the two sides of the synchronizing block 53 are respectively fixed with a sliding block 55, the inner wall of the synchronizing sleeve 5 is provided with a sliding groove 56, and the sliding block 55 is slidably matched with the synchronizing sleeve 5 along the length direction of the synchronizing sleeve 5 through the sliding groove 56. The side of the sliding block 55 far away from the first 331 of the rotating shafts is fixed with a synchronizing spring 57, and one end of the synchronizing spring 57 far away from the sliding block 55 is fixedly connected with the inner wall of the sliding groove 56. The end face of the synchronizing block 53 far away from the first rotating shaft 331 is fixed with a first magnetic block 61, and the inner wall of the synchronizing sleeve 5 far away from the first rotating shaft 331 is fixed with an electromagnet 6 for attracting the first magnetic block 61. The first moving plate 63 is fixedly embedded in the side surface of the synchronizing block 53, the first fixed plate 62 is fixedly embedded in the inner wall of the synchronizing sleeve 5, and the first moving plate 63 can be in electrical contact with the first fixed plate 62. The first stator 62 is electrically connected to a power source, and the first rotor 63 is electrically connected to the first motor 52.

When the guide wheel I34 is attached to the bottom surface of the track I13, the rotating shaft I331 is coaxially arranged with the synchronizing sleeve 5, the electromagnet I6 is powered off, the synchronizing block 53 moves towards the direction close to the rotating shaft 33 under the action of the elasticity of the synchronizing spring 57, at the moment, the moving plate I63 is electrically contacted with the stator I62, the motor I52 is powered on to work, the motor I52 drives the synchronizing sleeve 5 to rotate, and the synchronizing sleeve 5 drives the synchronizing block 53 to rotate; when the synchronizing block 53 is aligned with the synchronizing groove 54, the synchronizing block 53 is inserted into the synchronizing groove 54, the synchronizing block 53 drives the first rotating shaft 331 to rotate synchronously, the first rotating shaft 331 drives the first guide wheel 34 to rotate, and the first guide wheel 34 rolls in the first track 13, so that the crane body 1 is driven to move along the length direction of the first track 13.

Referring to fig. 3, 6 and 7, a horizontally disposed link lever 7 is rotatably mounted to the support plate 2, and the link lever 7 is disposed along the width direction of the support plate 2. The second motor 71 is arranged on the supporting plate 2, and the output end of the second motor 71 is fixedly connected with the end part of the connecting rod 7. The support plate 2 is rotatably mounted with a horizontally disposed rotation lever 72, and the rotation lever 72 is disposed along the length direction of the support plate 2. The outer peripheral surface of the connecting rod 7 is sleeved and fixed with a first bevel gear 73, the outer peripheral surface of the rotating rod 72 is sleeved and fixed with a second bevel gear 74, and the first bevel gear 73 is meshed with the second bevel gear 74. The motor II 71 is started, the motor II 71 drives the connecting rod 7 to rotate, the connecting rod 7 drives the bevel gear I73 to rotate, the bevel gear I73 drives the bevel gear II 74 to rotate, and the bevel gear II 74 drives the rotating rod 72 to synchronously rotate.

Referring to fig. 6 and 7, the rotating rod 72 is located between the two second rotating shafts 332, and the end surface of the rotating rod 72, which is close to the second rotating shaft 332, is provided with a connecting groove 75. The rotating rod 72 is slidably provided with a connecting block 76 along the length direction of the rotating rod 72 through a connecting groove 75, and a positioning groove 77 for inserting the connecting block 76 is formed in the end face of the second rotating shaft 332, which is close to the rotating rod 72. Reset blocks 8 are respectively fixed on two sides of the connecting block 76, reset grooves 81 are formed in the inner walls of the connecting grooves 75, and the reset blocks 8 are in sliding fit with the rotating rod 72 along the length direction of the rotating rod 72 through the reset grooves 81. The side of the reset block 8 far away from the second rotating shaft 332 is fixed with a reset spring 82, and one end of the reset spring 82 far away from the reset block 8 is fixedly connected with the inner wall of the reset groove 81. The side of the connecting block 76 far away from the second rotating shaft 332 is fixed with a second magnetic block 84, and the inner wall of the connecting groove 75 far away from the second rotating shaft 332 is fixed with a second electromagnet 83 for attracting the second magnetic block 84. A second moving plate 86 is fixedly embedded in the side surface of the connecting block 76, a second fixed plate 85 is fixedly embedded in the inner wall of the connecting groove 75, and the second moving plate 86 can be electrically contacted with the second fixed plate 85. The second stator 85 is electrically connected to a power source, and the second rotor 86 is electrically connected to the second motor 71.

When the second rotating shaft 332 moves to be coaxially arranged with the rotating rod 72, the second electromagnet 83 is powered off, the connecting block 76 moves towards the direction approaching to the second rotating shaft 332 under the action of the elastic force of the reset spring 82, the second moving plate 86 is electrically contacted with the second stator 85, the second motor 71 is powered on to work, and the rotating rod 72 drives the connecting block 76 to rotate; when the connection block 76 rotates to be aligned with the positioning groove 77, the connection block 76 is inserted into the positioning groove 77, the connection block 76 drives the second rotating shaft 332 to rotate, and the second rotating shaft 332 drives the second guide wheel 35 to rotate.

The implementation principle of the portal crane capable of changing the running track in the embodiment of the application is as follows: when the support plate 2 moves to the joint of the first track 13 and the second track 14, the electromagnet 6 is electrified, the electromagnet 6 attracts the first magnetic block 61, the first magnetic block 61 drives the synchronous block 53 to separate from the synchronous groove 54, and the synchronous block 53 moves into the synchronous sleeve 5; the driving motor 25 is started, the first guide wheel 34 moves upwards, the second guide wheel 35 moves downwards, the second guide wheel 35 drives the second rotating shaft 332 to move downwards, the electromagnet II 83 is powered off, the connecting block 76 is inserted into the positioning groove 77 under the elastic force of the reset spring 82, the second motor 71 is started, the rotating rod 72 drives the second rotating shaft 332 to rotate through the connecting block 76, so that the second guide wheel 35 rotates, and the crane body 1 moves along the length direction of the second track 14.

The foregoing are all preferred embodiments of the present application, and are not intended to limit the scope of the present application in any way, therefore: all equivalent changes in structure, shape and principle of this application should be covered in the protection scope of this application.

Claims (10)

1. The utility model provides a gantry crane of convertible orbit, includes hoist body (1), track one (13) and track two (14), track one (13) with track two (14) mutually perpendicular, its characterized in that: the crane body (1) comprises a main beam (11) which is horizontally arranged, supporting feet (12) are respectively arranged at the bottoms of the two ends of the main beam (11), a supporting plate (2) is fixed at the bottom of the supporting feet (12), universal wheels (21) are arranged at the bottom of the supporting plate (2), four accommodating grooves (22) are formed in the bottom surface of the supporting plate (2), the supporting plate (2) is provided with an installation frame (3) through the accommodating grooves (22) along vertical sliding, the installation frame (3) is rotatably provided with a rotating shaft (33), the four rotating shafts (33) are respectively two first rotating shafts (331) and two second rotating shafts (332), the first rotating shafts (331) are mutually perpendicular to the first track (13), the second rotating shafts (332) are mutually perpendicular to the second track (14), guide wheels (34) are fixedly sleeved on the outer peripheral surface of the first rotating shafts (331), and the second rotating shafts (332) are fixedly provided with second guide wheels (35) in a sleeved mode.

2. A gantry crane with changeable travel track according to claim 1, characterized in that: the mounting frame (3) comprises a transverse plate (31), the transverse plate (31) is attached to the inner wall of the accommodating groove (22), two vertical plates (32) are fixed on the bottom surface of the transverse plate (31), the rotating shaft (33) is rotatably mounted between the two vertical plates (32), a threaded rod (42) is fixed on the top surface of the transverse plate (31), a rotating groove (41) is formed in the inner top surface of the accommodating groove (22), a rotating sleeve (4) is rotatably mounted in the rotating groove (41), the rotating sleeve (4) is sleeved on the periphery of the threaded rod (42), the threaded rod (42) is in threaded transmission fit with the rotating sleeve (4), and a rotating assembly used for driving the rotating sleeve (4) to rotate is arranged on the supporting plate (2).

3. A gantry crane with changeable travel track according to claim 2, characterized in that: the threaded rods (42) are a first threaded rod (421) and a second threaded rod (422) respectively, the rotation direction of the threads of the first threaded rod (421) is opposite to that of the second threaded rod (422), the first threaded rod (421) corresponds to the first guide wheel (34), and the second threaded rod (422) corresponds to the second guide wheel (35); the rotating assembly comprises a worm (23) rotatably mounted in the supporting plate (2), a worm wheel (24) meshed with the worm (23) is fixedly sleeved on the outer peripheral surface of the rotating sleeve (4), a driving motor (25) is mounted in the supporting plate (2), and the output end of the driving motor (25) is fixedly connected with the end part of the worm (23).

4. A gantry crane with changeable travel track according to claim 2, characterized in that: riser (32) are riser one (321) and riser two (322) respectively, riser one (321) are located the both sides of axis of rotation one (331), riser two (322) are located the both sides of axis of rotation two (332), synchronous sleeve (5) are installed in backup pad (2) internal rotation, install motor one (52) on backup pad (2), the output of motor one (52) with the terminal surface fixed connection of synchronous sleeve (5), install synchronous piece (53) along self length direction slip in synchronous sleeve (5), axis of rotation one (331) are close to the terminal surface of synchronous sleeve (5) has been seted up and has been used for inserting synchronous groove (54) of synchronous piece (53).

5. A gantry crane with changeable travel track according to claim 4, wherein: the inner wall of synchronous sleeve (5) has seted up spout (56), the side of synchronous piece (53) is fixed with slider (55), slider (55) are through spout (56) are followed the length direction of synchronous sleeve (5) with synchronous sleeve (5) sliding fit, the side that slider (55) kept away from axis of rotation one (331) is fixed with synchronizing spring (57), synchronizing spring (57) keep away from the one end of slider (55) with the inner wall fixed connection of spout (56).

6. A gantry crane with changeable travel track according to claim 5, characterized in that: the end face, far away from the first rotating shaft (331), of the synchronous block (53) is fixedly provided with a first magnetic block (61), the inner wall, far away from the first rotating shaft (331), of the synchronous sleeve (5) is fixedly provided with a first electromagnet (6), and the first electromagnet (6) can attract the first magnetic block (61).

7. A gantry crane with changeable travel track according to claim 6, characterized in that: the side of the synchronizing block (53) is embedded and fixed with a first moving plate (63), the inner wall of the synchronizing sleeve (5) is embedded and fixed with a first moving plate (62), the first moving plate (63) can be in electric contact with the first moving plate (62), the first moving plate (62) is electrically connected with a power supply, and the first moving plate (63) is electrically connected with the first motor (52).

8. A gantry crane with changeable travel track according to claim 2, characterized in that: connecting rod (7) are installed in backup pad (2) rotation, install motor two (71) on backup pad (2), the output of motor two (71) with the tip fixed connection of connecting rod (7), be close to in outer peripheral face cover of connecting rod (7) is established and is fixed with bevel gear one (73), rotation pole (72) are installed in backup pad (2) rotation, the outer peripheral face cover of rotation pole (72) set up be fixed with bevel gear two (74) of bevel gear one (73) intermeshing, connecting groove (75) have been seted up respectively at the both ends of rotation pole (72), rotation pole (72) are passed through connecting groove (75) are followed the length direction of rotation pole (72) is slided and is installed connecting block (76), rotation axis two (332) are close to the constant head tank (77) that are used for inserting connecting block (76) have been seted up to the terminal surface of rotation pole (72).

9. A gantry crane with changeable travel track according to claim 8, characterized in that: the side of connecting block (76) is fixed with reset block (8), reset groove (81) have been seted up to the inner wall of spread groove (75), reset block (8) are passed through reset groove (81) are followed the length direction of dwang (72) with dwang (72) cooperation that slides, reset block (8) are kept away from the side of axis of rotation two (332) is fixed with reset spring (82), reset spring (82) are kept away from reset block (8) one end with reset groove (81)'s inner wall fixed connection.

10. A gantry crane with changeable travel track according to claim 9, characterized in that: a second magnetic block (84) is fixed on the side surface, far away from the second rotating shaft (332), of the connecting block (76), and a second electromagnet (83) for attracting the second magnetic block (84) is fixed on the inner wall, far away from the second rotating shaft (332), of the connecting groove (75); the side of connecting block (76) inlays and is fixed with moving plate two (86), the inner wall of spread groove (75) inlays and is fixed with stator two (85), moving plate two (86) can with stator two (85) electrical contact, stator two (85) are connected with the power electricity, moving plate two (86) with motor two (71) electricity is connected.