Container portal crane

Abstract

The embodiment of the invention provides a container portal crane. The container portal crane comprises a portal frame and an unloading mechanism, the portal frame comprises a main beam and supporting legs, a trolley is arranged on the main beam, and the trolley can reciprocate relative to the main beam in the length direction of the main beam; the unloading mechanism is fixedly connected with the supporting legs and comprises a supporting platform, the trolley is used for carrying the container to the supporting platform, and the first end of the supporting platform is rotationally connected with the supporting legs; the locking unit is used for fixing the container on the supporting platform; the jacking unit is located at the second end of the supporting platform and used for jacking and pushing the supporting platform so that the container can rotate around a rotating shaft of the supporting platform along with the supporting platform and dump goods; the jacking unit can drive the supporting platform to swing around the rotating shaft in a reciprocating mode so as to shake the container. According to the container portal crane, hoisting and unloading of the container can be achieved, and the unloading efficiency is high.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cranes, in particular to a container gantry crane. BACKGROUND

[0002] Railway freight yard as a key node of logistics transportation, undertakes the transfer and distribution of bulk cargo.

[0003] In the related art, in order to unload coal, ore, grain and other bulk cargo, the gantry crane is usually provided with a lifting structure for lifting containers, the lifting structure is connected with four corner fittings on the top of the container respectively, and the inclination angle of the container is changed by adjusting the lifting height of the four corner fittings, so as to dump the cargo.

[0004] However, the lifting structure of the gantry crane is relatively complex, and the unloading efficiency is low. SUMMARY

[0005] The container gantry crane provided by the embodiments of the present application has a relatively simple structure and high unloading efficiency.

[0006] The container gantry crane provided by the embodiments of the present application includes a portal frame and an unloading mechanism, the portal frame includes a main beam and a leg, a trolley is arranged on the main beam, and the trolley can reciprocate relative to the main beam along the length direction of the main beam; the unloading mechanism is fixedly connected with the leg, and the unloading mechanism includes:

[0007] a support platform, the trolley is used to carry a container to the support platform, and a first end of the support platform is rotationally connected with the leg;

[0008] a locking unit, used to fix the container on the support platform;

[0009] a jacking unit, the jacking unit is located at a second end of the support platform, used to push the support platform, so that the container rotates with the support platform around the rotation shaft of the support platform and dumps the cargo; and the jacking unit can drive the support platform to reciprocate around the rotation shaft, so as to shake the container.

[0010] In some embodiments, the locking unit includes a plurality of locking pins, and the plurality of locking pins are configured to respectively extend into the locking pin holes of different corner fittings of the container when the container is supported on the support platform.

[0011] The locking pin has a dismounting position and a locking position, and the locking unit further includes a driving member, which is used to drive the plurality of locking pins to rotate simultaneously, so as to switch the locking pin between the locking position and the dismounting position.

[0012] In some embodiments, the support platform is provided with an elastic and retractable indication unit, which has a compressed state and an extended state, and when the container is supported on the support platform, the indication unit is configured to switch from the extended state to the compressed state under the pressure of the container;

[0013] The driving member is used to drive the locking pin to switch between the locking position and the dismounting position when the indication unit is in the compressed state.

[0014] The locking unit further comprises a second detection member for detecting the position of the locking pin, and the second detection member comprises at least one of a position switch, a distance sensor, and an image sensor.

[0015] In some embodiments, the indication unit comprises a first detection member for detecting the state of the indication unit, and the first detection member comprises at least one of a position switch, a distance sensor, and an image sensor; and / or,

[0016] The indication unit has a stop protrusion, and the locking pin is provided with a detection portion; when the indication unit is in the extended state, the stop protrusion is located on the rotation path of the detection portion to prevent the rotation of the locking pin; when the indication unit is in the compressed state, the stop protrusion is configured to avoid the detection portion.

[0017] In some embodiments, the indication unit comprises an indication rod and an elastic member, and the elastic member is sleeved on the outside of the indication rod.

[0018] The indication rod is connected to the support platform in a plug-in manner, and the indication rod can be extended above the support platform under the elastic force of the elastic member.

[0019] In some embodiments, the number of locking pins is two, and the locking unit further comprises a linkage assembly, which comprises a linkage and a swing rod, wherein one swing rod is provided corresponding to each locking pin, the first end of the swing rod is fixedly connected to the locking pin, and the two ends of the linkage are rotatably connected to the other ends of the two swing rods, wherein the two swing rods are the same in length and parallel to each other.

[0020] The driving member is connected to any one of the swing rod, the linkage, and the locking pin to simultaneously drive the rotation of the two locking pins.

[0021] In some embodiments, the jacking unit comprises a plurality of servo hydraulic cylinders, and the plurality of servo hydraulic cylinders are arranged at intervals, the cylinder rod of each servo hydraulic cylinder is connected to the support platform, and the servo hydraulic cylinders are used to synchronously jacking the support platform to rotate, so that the support platform is rotated to different angular positions.

[0022] The support platform is further provided with an angle detection member for detecting the rotation angle of the support platform.

[0023] In some embodiments, the swing angle range of the support platform is configured to increase when the rotation angle of the support platform becomes larger; and / or,

[0024] The number of swings of the support platform at any rotation angle is configured to decrease when the rotation angle of the support platform becomes larger.

[0025] In some embodiments, the support platform is further provided with a vibrator, which is located at the bottom of the container when the container is supported on the support platform, and the vibrator is used to vibrate the container.

[0026] In some embodiments, the unloading mechanism further comprises a plurality of limiting members arranged on the support platform, and the plurality of limiting members are arranged at intervals along the moving direction of the trolley, so that when the container is supported on the support platform, the plurality of limiting members are respectively located at the opposite sides of the container.

[0027] The limiting member comprises a guiding portion and a limiting portion, the limiting portion is connected with the support platform, the guiding portion is connected with one end of the limiting portion away from the support platform, and the cross-sectional dimension of the guiding portion gradually decreases from the end close to the limiting portion to the end away from the limiting portion.

[0028] The container gantry crane provided by the embodiments of the present application fixes the container on the support platform through the locking unit, drives the container to rotate by the rotation of the support platform relative to the support legs, and dumps the goods, so that the unloading efficiency is high, and the support platform can also be driven to swing by the jacking unit to shake the goods in the container, so as to improve the unloading effect. BRIEF DESCRIPTION OF DRAWINGS

[0029] The drawings incorporated into the specification and constituting a part of the specification, show embodiments consistent with the present application, and together with the specification, serve to explain the principles of the present application.

[0030] Figure 1 The structure schematic diagram of the container gantry crane provided by the embodiments of the present application is shown;

[0031] Figure 2 The structure schematic diagram of the unloading mechanism in the container gantry crane provided by the embodiments of the present application is shown;

[0032] Figure 3 Another structure schematic diagram of the unloading mechanism in the container gantry crane provided by the embodiments of the present application is shown;

[0033] Figure 4Another structural schematic view of the unloading mechanism in the container gantry crane provided by the embodiment of the present application is shown in the figure.

[0034] Figure 5 A structural schematic view of the locking unit in the container gantry crane provided by the embodiment of the present application is shown in the figure.

[0035] Figure 6 A structural schematic view of the limiting member in the container gantry crane provided by the embodiment of the present application is shown in the figure. Figure 5 A partial structural schematic view of the A part in the figure.

[0036] Figure 7 A structural schematic view of the limiting member in the container gantry crane provided by the embodiment of the present application is shown in the figure.

[0037] Reference signs:

[0038] 1 - container gantry crane

[0039] 10 - portal

[0040] 11 - main girder; 12 - leg; 13 - trolley

[0041] 20 - unloading mechanism

[0042] 21 - support platform

[0043] 22 - locking unit; 221 - locking pin; 222 - driving member; 223 - swing lever; 224 - connecting rod; 225 - stop protrusion

[0044] 23 - jacking unit

[0045] 24 - indicating unit; 241 - indicating rod; 242 - elastic member

[0046] 25 - limiting member; 251 - guide portion; 252 - limiting portion

[0047] 26 - body

[0048] 30 - container

[0049] 40 - transfer vehicle

[0050] The specific embodiments of the present application have been shown in the above figures, and will be described in more detail hereinafter. These figures and textual descriptions are not intended to limit the scope of the concept of the present application by any means, but to illustrate the concept of the present application to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0051] The exemplary embodiments will be described in detail herein with reference to the attached drawings. The following description is made with reference to the accompanying drawings in which like reference numerals designate identical or similar elements in the several embodiments. The following exemplary embodiments are described with reference to the accompanying drawings. Unless specifically stated otherwise, the following descriptions are not mutually exclusive combinations of the exemplary embodiments. Rather, they are merely examples of apparatuses and methods consistent with some aspects of the present application, as detailed in the appended claims.

[0052] In order to solve the problems of complex structure and low unloading efficiency of the gantry crane in the related art, the container gantry crane provided in the embodiments of the present application has a rotatable supporting platform in the climbing device, and the goods can be dumped by rotating and swinging the supporting platform, so that the structure is relatively simple and the unloading efficiency is relatively high.

[0053] The container gantry crane provided in the embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0054] Please refer to Figure 1 , Figure 2 , Figure 3 and Figure 4 , the container gantry crane 1 provided in the embodiments of the present application includes a portal frame 10 and an unloading mechanism, the portal frame 10 includes a main beam 11 and a supporting leg 12, the supporting leg 12 is two and is arranged at opposite ends of the main beam 11 respectively, and the main beam 11 is provided with a trolley 13, which can reciprocate along the length direction of the main beam 11 relative to the main beam 11. In some embodiments, the portal frame 10 can reciprocate on the ground through the supporting leg 12, and the moving direction of the portal frame 10 can be perpendicular to the moving direction of the trolley 13.

[0055] In some embodiments, the unloading mechanism 20 is fixedly connected with the supporting leg 12, so that the unloading mechanism 20 can move synchronously with the portal frame 10.

[0056] In some embodiments, the unloading mechanism 20 can include a body 26 and a supporting platform 21, the body 26 is fixedly connected with the supporting leg 12, and the supporting platform 21 is arranged on the body 26, so that the first end of the supporting platform 21 can be rotatably connected with the body 26, so that the first end of the supporting platform 21 is rotatably connected with the supporting leg 12.

[0057] In some embodiments, the body 26 and the supporting platform 21 can be hollow frame structures made of metal pieces, so that the unloading mechanism 20 can have smaller weight and greater supporting strength.

[0058] In some embodiments, the support platform 21 is used to support the container 30, so that the trolley 13 can carry the container 30 to the support platform 21. Since the unloading mechanism 20 is fixedly connected with the outrigger 12, the trolley 13 and the support platform 21 have a fixed relative position in a direction perpendicular to the moving direction of the trolley 13, i.e. in a direction parallel to the moving direction of the portal 10, so that the container 30 and the support platform 21 have a fixed relative position in the direction parallel to the moving direction of the portal 10 after the container 30 is placed on the support platform 21.

[0059] In some embodiments, the unloading mechanism 20 comprises a locking unit 22 for fixing the container 30 on the support platform 21 to avoid the container 30 from shifting relative to the support platform 21 or falling off the support platform 21.

[0060] In some embodiments, the unloading mechanism 20 comprises a jacking unit 23, which is located at the second end of the support platform 21, i.e. the jacking unit 23 and the pivot of the support platform 21 are located at opposite ends of the support platform 21, and the jacking unit 23 is used to push the support platform 21 so that the support platform 21 can rotate relative to the body 26 about the pivot of the support platform 21, and the container 30 can rotate with the support platform 21 about the pivot of the support platform 21, so that the container 30 can be in an inclined state to facilitate the dumping of goods.

[0061] Considering that the doors of the container 30 are usually located at one end of the container 30 in the length direction, the pivot of the support platform 21 can be along the width direction of the container 30, so that when the container 30 is in an inclined state, the doors of the container 30 can be inclined towards the ground, so that when the doors are opened, the goods in the container 30 can slide under the action of gravity.

[0062] It can be understood that the support platform 21 and the ground can have a height difference, which can be greater than the height of the transfer trolley 40. In this way, the transfer trolley 40 for transporting goods can be parked at the bottom of the support platform 21, and the goods in the container 30 can be directly dumped into the cargo box of the transfer trolley.

[0063] In some embodiments, the jacking unit 23 can also drive the support platform 21 to swing back and forth about the pivot to shake the container 30. In this way, the container 30 can be selectively shaken by the support platform 21 according to the type, fluidity, etc. of the goods, so that the goods in the container 30 are more loose, the fluidity of the goods is improved, and the unloading efficiency is improved.

[0064] That is, the container gantry crane 1 provided by the embodiment fixes the container 30 on the support platform 21 through the locking unit 22, and drives the container 30 to rotate by rotating the support platform 21 relative to the support leg 12, so as to dump the goods. The container gantry crane 1 has a relatively simple structure and high unloading efficiency, and can also swing the support platform 21 by the jacking unit 23 to shake the goods in the container 30, so as to improve the unloading effect.

[0065] In some embodiments, the container 30 is provided with corner fittings at eight corner positions, and the corner fittings are provided with waist-shaped locking pin holes, so as to be connected with a lifting appliance and the like. In this way, the container 30 can be lifted and stacked by the lifting appliance.

[0066] In some embodiments, referring to Figure 5 and Figure 6 , the locking unit 22 includes a plurality of locking pins 221, and the locking pins 221 have locking heads. The shape of the locking heads is matched with the shape of the waist-shaped locking pin holes, that is, the locking heads have a length direction and a width direction, so that the locking heads can be inserted into the waist-shaped locking pin holes. The plurality of locking pins 221 are configured to be inserted into the locking pin holes of different corner fittings of the container 30 when the container 30 is supported on the support platform 21. In this way, when the container 30 is fixed on the support platform 21, the plurality of corner fittings can be fixedly connected with the support platform 21.

[0067] In some embodiments, the locking pins 221 have a dismounting position and a locking position, and the locking unit 22 further includes a driving member 222. The driving member 222 is used to drive the plurality of locking pins 221 to rotate simultaneously, so as to switch the locking pins 221 between the locking position and the dismounting position.

[0068] When the locking pins 221 are in the dismounting position, the length direction of the locking head is matched with the length direction of the waist-shaped locking pin hole, and the locking head can be inserted into or out of the locking pin hole. When the locking pins 221 are in the locking position, the locking head is rotated relative to the locking pin hole, and the length direction of the locking head has an included angle with the length direction of the locking pin hole. For example, the length direction of the locking head is perpendicular to the length direction of the locking pin hole, and the length of the locking head is greater than the width of the locking pin hole, so as to avoid the locking head from being out of the locking pin hole, that is, the locking head can be clamped with the locking pin hole, and the container 30 is fixed relative to the support platform 21 through the locking pins 221.

[0069] In this way, the locking pins 221 can be switched between the locking position and the dismounting position by rotating the locking pins 221.

[0070] In some embodiments, the support platform 21 is provided with an elastic retractable indication unit 24, the indication unit 24 has a compressed state and an extended state, so that the indication unit 24 can be switched between the compressed state and the extended state relative to the support platform 21, wherein the indication unit 24 can be in the extended state and extended to the upper side of the support platform 21 in the natural state, when the container 30 is supported on the support platform 21, the indication unit 24 is pressed, and the indication unit 24 is switched from the extended state to the compressed state under the pressing of the container 30. That is, whether the container 30 is supported on the support platform 21 can be determined by the state of the indication unit 24.

[0071] In some embodiments, the driving member 222 is used to drive the locking pin 221 to switch between the locking position and the disassembly position when the indication unit 24 is in the compressed state.

[0072] In this way, through the cooperation between the indication unit 24 and the driving member 222, the prior condition for the position switching of the locking pin 221 can be limited, so as to avoid that when the container 30 has not been stably supported on the support platform 21, the locking pin 221 has completed the position switching, resulting in that the container 30 cannot be effectively fixed on the support platform 21, and further resulting in that when the support platform 21 rotates, the container 30 is offset relative to the support platform 21 or even the container 30 falls off from the support platform 21.

[0073] In some embodiments, the indication unit 24 includes a first detection member for detecting the state of the indication unit 24, the first detection member includes at least one of a position switch, a distance sensor, and an image sensor, so that the indication unit 24 can have higher detection accuracy and faster response speed, and it is easy to determine the detection state of the indication unit 24.

[0074] The position switch can be a contact type position switch or a non-contact type position switch, so as to determine whether the state of the indication unit 24 changes through the change of the state of the position switch.

[0075] The distance sensor can be a laser radar, an ultrasonic sensor, a millimeter wave radar, an infrared sensor, a time-of-flight sensor, a direct time-of-flight sensor, or a line laser sensor, so as to determine whether the state of the indication unit 24 changes by detecting the distance at the target position.

[0076] The image sensor can be a monocular camera, a binocular camera, a fisheye camera, a structured light camera, etc. The image sensor can shoot an image of the indication unit 24 to construct a 2D or 3D model map, so that whether the state of the indication unit 24 changes can be determined through the model map.

[0077] In some embodiments, the indicating unit 24 is provided with a stop protrusion 225, and the locking pin 221 is provided with a detection portion, which can be a protruding structure protruding from the locking pin 221. When the indicating unit 24 is in the extended state, the stop protrusion 225 is located on the rotation path of the detection portion to prevent the rotation of the locking pin 221. In this way, when the container 30 does not press against the indicating unit 24, or when the container 30 presses against the indicating unit 24 but the indicating unit 24 is in a transition position between the locking position and the disassembly position, the stop protrusion 225 is located on the rotation path of the detection portion, so that when the locking pin 221 rotates, the detection portion will abut against the stop protrusion 225, that is, the locking pin 221 cannot rotate relative to the support platform 21, and the locking pin 221 cannot be switched between the locking position and the disassembly position.

[0078] In some embodiments, when the indicating unit 24 is in the compressed state, the stop protrusion 225 is configured to avoid the detection portion. That is, after the stop protrusion 225 moves relative to the locking pin 221 along the extension direction of the indicating unit 24, the stop protrusion 225 is offset from the locking pin 221 in the extension direction of the indicating unit 24, so that the locking pin 221 can rotate relative to the indicating unit 24 to switch between the locking position and the disassembly position.

[0079] In this way, by providing the stop protrusion 225 on the indicating unit 24, the rotation of the locking pin 221 is realized by the structure of the indicating unit 24 and the locking pin 221, and the detection reliability is high.

[0080] In some embodiments, the indicating unit 24 can be provided with both the first detection member and the stop protrusion 225 to detect the position of the locking pin 221 by electronic and mechanical methods, and to improve the detection reliability of the position detection of the locking pin 221 by redundant detection.

[0081] In some embodiments, the indicating unit 24 includes an indicating rod 241 and an elastic member 242. The indicating rod 241 can be a metal rod with high strength, and the elastic member 242 can be a spring.

[0082] The stop protrusion 225 can be a protruding structure protruding from the outer wall surface of the indicating rod 241, so that there is a height difference between the stop protrusion 225 and the outer wall surface of the indicating rod 241, which can cover the rotation stroke of the detection portion. That is, when the locking pin 221 is switched between the locking position and the disassembly position, the detection portion will not collide with the indicating rod 241.

[0083] In some embodiments, the elastic member 242 is sleeved on the outside of the indicating rod 241, and the indicating rod 241 is connected to the support platform 21 in a plug-in manner. That is, the support platform 21 can be provided with a through hole for the indicating rod 241 to pass through, and the indicating rod 241 can be extended above the support platform 21 under the elastic force of the elastic member 242.

[0084] That is, in the natural state, the end of the indicating rod 241 can extend above the support platform 21 under the elastic force of the elastic member 242. In this way, during the lowering of the container 30, the container 30 can resist the elastic force of the elastic member 242 and press against the indicating rod 241 until the container 30 is supported on the support platform 21. At this time, the indicating rod 241 can be pressed against the container 30 under the elastic force of the elastic member 242, and the indicating unit 24 is in the compressed state.

[0085] When the trolley 13 drives the container 30 to move upward, the indicating rod 241 can extend under the elastic force of the elastic member 242 until it moves to the extended state. In this way, the indicating rod 241 can reciprocate under the action of the container 30 and the elastic force of the elastic member 242, so that the indicating unit 24 switches between the extended state and the compressed state.

[0086] In some embodiments, the indicating unit 24 can be multiple, for example, two, three or more, and the indicating unit 24 is respectively arranged at the corner of the container 30 when the container 30 is supported on the support platform 21. In this way, when the support platform 21 is supported on the support platform 21, it can be judged by each indicating unit 24 whether each corner of the container 30 is lowered in place to avoid the container 30 from being skewed on the support platform 21.

[0087] In some embodiments, the number of indicating units 24 can be four, and the four indicating units 24 are respectively arranged at the corners of the container 30 to detect the four corners of the container respectively. In this way, when the four corners of the container 30 are all supported on the support platform 21, the locking pin 221 switches between the locking position and the dismounting position to avoid that some corners of the container 30 cannot be locked and fixed by the locking pin 221, and the fixing stability of the container 30 is higher.

[0088] In some embodiments, the number of indicating units 24 can also be more than four to improve the fixing stability of the container 30 through redundant detection.

[0089] In some embodiments, the number of locking pins 221 is two, and the two locking pins 221 can be arranged at intervals along the length direction of the container 30, or arranged at intervals along the width direction of the container 30.

[0090] In some embodiments, in order to drive the two locking pins 221 to rotate simultaneously, the locking unit 22 further comprises a linkage assembly, which comprises a linkage 224 and a swing lever 223, wherein one swing lever 223 is arranged corresponding to each locking pin 221, the first end of the swing lever 223 is fixedly connected with the locking pin 221, and the two ends of the linkage 224 are rotatably connected with the other ends of the two swing levers 223, wherein the two swing levers 223 are of the same length and parallel to each other, that is, the linkage assembly is a parallelogram linkage, so that the driving member 222 can drive the two locking pins 221 to rotate synchronously through the linkage assembly, and the structure of the linkage assembly is relatively simple.

[0091] In some embodiments, the swing lever 223 is fixedly connected with the locking pin 221, and the swing lever 223 can constitute a detection part to simplify the structure of the locking pin 221.

[0092] In some embodiments, the driving member 222 can be connected with any one of the swing lever 223, the linkage 224 and the locking pin 221 to drive the two locking pins 221 to rotate simultaneously. For example, the driving member 222 is a motor, and a swing lever 223 is also fixedly arranged on the output shaft of the motor, and the linkage 224 is of a two-section structure, each section is connected with the swing lever 223 of the output shaft of the motor, so that the output shaft of the motor can drive the two locking pins 221 to rotate synchronously when the output shaft of the motor rotates.

[0093] In some embodiments, the driving member 222 can also be a driving cylinder or a driving oil cylinder, the output shaft of the driving member 222 is slidably connected with the swing lever 223, and the extension direction of the output shaft of the driving member 222 and the length of the swing lever 223 are reversely arranged at an angle, so as to drive the swing lever 223 to rotate through the extension of the output shaft of the driving member 222.

[0094] The above is an example of the types of the driving member 222 and the connection mode between the driving member 222 and the linkage assembly, which does not limit the types of the driving member 222 and the connection mode between the driving member 222 and the linkage assembly.

[0095] In some embodiments, the locking unit 22 is of two groups, and the two groups of locking units 22 are arranged on the opposite sides of the support platform 21. In this way, the two groups of locking units 22 correspondingly arrange four locking pins 221, and one locking pin 221 is arranged at each corner part of the container 30, and when the locking unit 22 fixes the container 30 on the support platform 21, the four corner parts of the container 30 are fixedly connected with the support platform 21, and the fixing stability of the container 30 is relatively high.

[0096] In some embodiments, the locking unit 22 further comprises a second detection member for detecting the position of the locking pin 221, the second detection member comprising at least one of a position switch, a distance sensor, an image sensor. In this way, the locking unit 22 can have higher detection accuracy and faster response speed, and it is easy to determine the position of the locking pin 221.

[0097] The position switch can be a contact type position switch or a non-contact type position switch, so as to determine whether the state of the locking unit 22 changes by detecting the change of the state of the position switch.

[0098] The distance sensor can be a laser radar, an ultrasonic sensor, a millimeter wave radar, an infrared sensor, a time-of-flight sensor, a direct time-of-flight sensor, or a line laser sensor, so as to determine whether the state of the locking unit 22 changes by detecting the distance at the target position.

[0099] The image sensor can be a monocular camera, a binocular camera, a fisheye camera, a structured light camera, etc. The image sensor can capture an image of the indicating unit 24 to construct a 2D or 3D model map, so that it can be determined whether the state of the locking unit 22 changes by the model map.

[0100] In some embodiments, the jacking unit 23 can comprise a driving cylinder or a driving oil cylinder, so as to drive the support platform 21 to rotate by the extension and retraction of the cylinder rod of the driving cylinder or the driving oil cylinder

[0101] In some embodiments, the jacking unit 23 comprises a servo hydraulic cylinder, the cylinder rod of the servo hydraulic cylinder being connected with the support platform 21, for pushing the support platform 21 to rotate to different angular positions.

[0102] The servo hydraulic cylinder can be provided with a displacement sensor or other feedback elements, so as to more real-time and accurately feedback the extension and retraction position of the cylinder rod of the servo hydraulic cylinder, that is, the rotation angle of the support platform 21 can be real-time feedback, so as to realize real-time adjustment of the rotation angle of the support platform 21 according to the type, fluidity, weight, etc. of the goods.

[0103] In this way, the servo hydraulic cylinder can realize closed-loop control of the rotation angle of the support platform 21, and the response speed of the servo hydraulic cylinder is relatively fast, which can realize small-size extension and positioning, that is, the support platform 21 can be swung in a small angle range, so as to facilitate unloading of the container 30.

[0104] In some embodiments, the support platform 21 can swing at any rotation angle position, and the swing angle range of the support platform 21 can be changed according to the angle of the support platform 21, the accumulation of the goods, etc.

[0105] In some embodiments, the swing angle range of the support platform 21 can be increased when the rotation angle of the support platform 21 is larger, so that the goods can be quickly slid off from the container 30 by the swing of the support platform 21 at different rotation angle positions.

[0106] For example, the support platform 21 can have an initial rotation angle, which can be 20°-40°, at which the goods have poor flowability, and the swing angle range of the support platform 21 at the initial rotation angle position can be 4°-6°, so as to initially shake the goods and make the goods more loose, thereby improving the flowability of the goods.

[0107] The support platform 21 can also have a first unloading angle, which can be 40°-60°, at which part of the goods can slide down under the action of gravity, and the swing angle range of the support platform 21 at the first unloading angle position can be 6°-10°, so as to shake the remaining goods by the swing of the support platform 21.

[0108] The support platform 21 can also have a second unloading angle, which can be 70°-80°, at which the inclination angle of the container 30 is large, and part of the residual goods can not slide onto the transfer trolley 40 due to adhesion to the side wall of the container 30. In this way, the residual goods adhered to the container 30 can be peeled off by the combined action of the large swing range and the gravity of the residual goods.

[0109] It should be noted that the numerical values and numerical ranges involved in the embodiments of the present application are approximate values, and there can be a certain range of errors due to the manufacturing process, which can be considered negligible by those skilled in the art.

[0110] The above is an example of the rotation angle of the support platform 21 and the swing angle range of the support platform 21 at different rotation angle positions, which is not limited to the rotation angle of the support platform 21 and the swing angle range of the support platform 21 at different rotation angle positions. For example, at any rotation angle position, when the swing of the support platform 21 cannot make the goods slide, the swing angle range of the support platform 21 at the rotation angle position can be increased.

[0111] In some embodiments, according to the different types of goods, the support platform 21 can selectively rotate to any rotation angle position, and is not limited to sequentially rotating to the initial rotation angle, the first unloading angle, and the second unloading angle. For example, when the goods are grains with good flowability, the support platform 21 can directly rotate to the second unloading angle. For goods such as ores, the support platform 21 can first rotate to a position smaller than the initial rotation angle, so as to avoid the impact of the goods on the opening and closing of the container 30.

[0112] In some embodiments, the number of swings of the support platform 21 at any rotation angle is configured to decrease as the rotation angle of the support platform 21 increases.

[0113] For example, the number of swings of the support platform 21 at the initial rotation angle position can be 4-6 times, the number of swings of the support platform 21 at the first unloading angle position can be 2-4 times, and the number of swings of the support platform 21 at the second unloading angle position can be 1-2 times.

[0114] In this way, at the initial rotation angle position, the hardening cargo can be turned into loose cargo through a small swing amplitude and a large number of swings, so as to help induce the cargo to slide off. At the large rotation angle position, the residual cargo can be peeled off from the side wall of the container 30 under the action of gravity and centrifugal force through a large swing amplitude and a small number of swings. Moreover, it can avoid that the residual cargo may adhere to other positions of the container 30 again when the support platform 21 swings at the large rotation angle position.

[0115] The above is an example of the number of swings of the support platform 21 at different rotation angle positions, which is not limited to pairs of support platforms 21 at different rotation angle positions.

[0116] In some embodiments, the support platform 21 is also provided with an angle detection member, which can be an angle sensor, for detecting the rotation angle of the support platform 21 in real time. In this way, the servo hydraulic cylinder can adjust the rotation angle of the support platform 21 in real time according to the angle detected by the angle detection member, so that the angle of the support platform 21 is adapted to the type of cargo, the flowability of the cargo, etc., and the unloading efficiency is improved.

[0117] In some embodiments, the number of servo hydraulic cylinders is multiple, for example, two, three or more, and the multiple servo hydraulic cylinders are arranged at intervals for synchronously pushing the support platform 21. In this way, the multiple servo hydraulic cylinders can form multi-point support for the support platform 21, and compared with the way of pushing the support platform 21 by a single servo hydraulic cylinder, the load of each servo hydraulic cylinder is smaller, the service life is longer, and the local stress of the support platform 21 caused by stress concentration can also be avoided.

[0118] At the same time, by arranging multiple servo hydraulic cylinders, the force on the support platform 21 in the direction of the rotation shaft of the support platform 21 can be more uniform, and the inclination of the support platform 21 can be avoided. Moreover, the multiple servo hydraulic cylinders can simultaneously push the support platform 21, which can form a redundant design and reduce the risk of failure.

[0119] In some embodiments, the support platform 21 is further provided with a vibrator, which can be a hydraulic vibrator or a vibrating motor. The vibration frequency and amplitude of the vibrator can be changed according to the type of goods and other factors. When the container 30 is supported on the support platform 21, the vibrator is located at the bottom of the container 30. When the vibrator is started, it can vibrate the container 30 in a direction perpendicular to the bottom plate of the container 30, and vibrate the goods in the container 30, so as to avoid the accumulation or adhesion of the goods in the container 30, and facilitate the sliding of the goods in the container 30.

[0120] In this way, on the basis of the rotation of the support platform 21 driven by the jacking unit 23, any one of the swinging of the support platform 21 driven by the jacking unit 23 and the vibration of the container 30 by the vibrator can be selectively used according to the type, density and flowability of the goods, so as to facilitate the sliding of the goods in the container 30 into the goods box of the transfer trolley 40.

[0121] For example, when the goods are fly ash, silica powder and other goods with small weight, loose and easy to generate dust, only the rotation of the support platform 21 driven by the jacking unit 23 can be used to tilt and dump the goods in the container 30, so as to avoid the goods from being thrown and having the risk of dust explosion when the container 30 is shaken or vibrated.

[0122] When the goods are ores, construction waste and other goods with block shape but poor flowability, on the basis of the rotation of the support platform 21 driven by the jacking unit 23, the swinging of the support platform 21 driven by the jacking unit 23 can be used to avoid the mutual jamming of the goods, and the rearrangement and sliding of the block-shaped goods by the swinging of the support platform 21.

[0123] When the goods are wet coal powder, ore powder and other goods with high humidity and high viscosity, which are easy to be cemented, the goods can be easily adhered to the side wall of the container 30. The high-frequency vibration of the vibrator can make the goods separate from the side wall of the container 30 and slide down. Alternatively, the swinging of the support platform 21 driven by the jacking unit 23 can be used after the vibration of the container 30 by the vibrator. Alternatively, the swinging of the support platform 21 driven by the jacking unit 23 can be used simultaneously during the vibration of the container 30 by the vibrator, so as to accelerate the sliding of the goods and improve the unloading efficiency.

[0124] In some embodiments, a spring, a rubber part or other elastic structure can be arranged between the support platform 21 and the vibrator, so as to reduce the vibration influence of the vibrator on the support platform 21. The elastic connection structure between the support platform 21 and the vibrator is not limited in the present embodiment.

[0125] In some embodiments, please refer to Figure 2 , Figure 3 and Figure 7The unloading mechanism 20 further comprises a plurality of limiting members 25 arranged on the support platform 21, and the plurality of limiting members 25 are arranged at intervals along the moving direction of the trolley 13, so that when the container 30 is supported on the support platform 21, the plurality of limiting members 25 are respectively located at opposite sides of the container 30.

[0126] That is, after the trolley 13 drives the container 30 to move to the position corresponding to the limiting member 25 on the main beam 11, the container 30 can be lowered towards the support platform 21, and when the container 30 is lowered to the position of the limiting member 25, the limiting member 25 can limit the container 30 along the moving direction of the trolley 13. In this way, when the container 30 is supported on the support platform 21, the locking pin 221 can be connected with the locking hole of the corner piece of the container 30, so as to avoid the locking hole of the corner piece of the container 30 being offset relative to the locking pin 221 when the container 30 is supported on the support platform 21 due to shaking of the container 30 and other factors during the lowering process of the container 30.

[0127] In this way, the position of the container 30 on the support platform 21 along the moving direction of the gantry 10 is limited by the connection between the gantry 10 and the unloading mechanism 20, and the position of the container 30 on the support platform 21 along the moving direction of the trolley 13 is limited by the limiting member 25, so that when the container 30 is supported on the support platform 21, the container 30 has a relatively accurate supporting position, and the locking pin 221 can be connected with the locking hole of the corner piece of the container 30.

[0128] In some embodiments, the limiting member 25 can be a protruding structure formed on the support platform 21. For example, the limiting member 25 can be a hollow metal frame structure, so that the limiting member 25 has good impact resistance to avoid deformation when the limiting member 25 collides with the container 30.

[0129] In some embodiments, the limiting member 25 can be two and arranged at opposite sides of the container 30 respectively, and each limiting member 25 can extend along a direction parallel to the moving direction of the gantry 10, so as to limit the container 30 by the limiting member 25 with a preset length, thereby avoiding torsion of the container 30 in a direction parallel to the support platform 21.

[0130] In some embodiments, the limiting member 25 can be three or more, so that a single side of the container 30 has a plurality of limiting members 25, so as to limit the container 30 at multiple points and avoid torsion of the container 30 in a direction parallel to the support platform 21.

[0131] In some embodiments, the protruding height of the limiting member 25 from the support platform 21 can be set as required. For example, the protruding height of the limiting member 25 from the support platform 21 can be greater than one fourth of the height of the container 30 and less than one half of the height of the container 30. The present embodiments do not limit the protruding height of the limiting member 25.

[0132] In some embodiments, the limiting member 25 comprises a guiding portion 251 and a limiting portion 252. The limiting portion 252 is connected to the support platform 21, and the guiding portion 251 is connected to the end of the limiting portion 252 away from the support platform 21. The cross-sectional dimension of the guiding portion 251 gradually decreases from the end close to the limiting portion 252 to the end away from the limiting portion 252.

[0133] That is, the end of the guiding portion 251 away from the support platform 21 is a small-size end, and the distance between the two guiding portions 251 is greater than the distance between the two limiting portions 252. In this way, even if the container 30 deviates during the lowering process, the container 30 can fall between the two guiding portions 251 and abut against the guiding portions 251. At this time, the container 30 can be guided and limited by the abutment between the container 30 and the guiding portions 251, so that the position of the container 30 along the moving direction of the trolley 13 is gradually adjusted during the lowering process until the container 30 falls between the two limiting portions 252 and is supported on the support platform 21.

[0134] In this way, by setting the guiding portion 251 with variable size, the container 30 can be guided and limited, and the accuracy requirement of the parking position of the trolley 13 during the lowering of the container 30 can be reduced.

[0135] In some embodiments, a guiding plate can be laid on the limiting portion 252. The guiding plate can be a metal plate to improve the sliding property of the container 30 relative to the guiding portion 251 and avoid the mutual clamping of the container and the guiding portion, which can cause the local tilting of the container.

[0136] Finally, it should be noted that other embodiments of the present application will be apparent to those skilled in the art from consideration of the specification and practice of the application disclosed herein. The present application is intended to cover any variations, uses or adaptive changes of the present application following the general principles of the present application and including commonly known or customary technical methods in the art not disclosed in the present application, and is not limited to the precise structures described above and shown in the drawings, and various modifications and changes can be made without departing from the scope thereof. The scope of the present application is only limited by the appended claims.

Claims

1. A container gantry crane, characterized in that The gantry includes a main beam and a support leg, and a trolley is arranged on the main beam and can reciprocate along the length direction of the main beam relative to the main beam; The unloading mechanism is fixedly connected with the support leg, and the unloading mechanism includes: A support platform, the trolley is used to carry the container to the support platform, and a first end of the support platform is rotationally connected with the support leg; A locking unit is used to fix the container on the support platform; A jacking unit is arranged at a second end of the support platform and is used to push the support platform, so that the container rotates around the rotation shaft of the support platform with the support platform and dumps the goods; and the jacking unit can drive the support platform to reciprocate around the rotation shaft of the support platform to shake the container.

2. A container gantry crane according to claim 1, characterised in that, The locking unit includes a plurality of locking pins, and the plurality of locking pins are configured to respectively extend into locking pin holes of different corner fittings of the container when the container is supported on the support platform; The locking pin has a dismounting position and a locking position, and the locking unit further includes a driving member, which is used to drive the plurality of locking pins to rotate simultaneously, so that the locking pins are switched between the locking position and the dismounting position.

3. A container gantry crane according to claim 2, characterised in that, The support platform is provided with an elastic telescopic indicating unit, the indicating unit has a compressed state and an extended state, and when the container is supported on the support platform, the indicating unit is configured to be switched from the extended state to the compressed state under the pressing of the container; The driving member is used to switch the locking pins between the locking position and the dismounting position when the indicating unit is in the compressed state; The locking unit further includes a second detection member for detecting the position of the locking pin, and the second detection member includes at least one of a position switch, a distance sensor, and an image sensor.

4. A container gantry crane according to claim 3, characterised in that, The indicating unit includes a first detection member for detecting the state of the indicating unit, and the first detection member includes at least one of a position switch, a distance sensor, and an image sensor; and / or The indicating unit has a stop protrusion, and the locking pin is provided with a detection portion; when the indicating unit is in the extended state, the stop protrusion is located on the rotation path of the detection portion to prevent the locking pin from rotating; when the indicating unit is in the compressed state, the stop protrusion is configured to avoid the detection portion.

5. A container gantry crane according to claim 3, characterised in that, The indicating unit includes an indicating rod and an elastic member, and the elastic member is sleeved on the outside of the indicating rod; The indicating rod is connected to the support platform in a plug-in manner, and the indicating rod can extend above the support platform under the elastic force of the elastic member.

6. The container gantry crane according to any one of claims 2-5, characterized in that The number of the locking pins is two, and the locking unit further includes a linkage assembly, the linkage assembly includes a linkage and a swing rod, each of the locking pins is provided with a corresponding swing rod, a first end of the swing rod is fixedly connected with the locking pin, and two ends of the linkage are rotationally connected with the other ends of the two swing rods, wherein the two swing rods have the same length and are parallel to each other. The driving member is connected with any one of the swing lever, the connecting rod and the locking pin to drive the two locking pins to rotate simultaneously.

7. A container gantry crane according to any one of claims 2-5, characterised in that, The jacking unit comprises a plurality of servo hydraulic cylinders, the servo hydraulic cylinders are arranged at intervals, the cylinder rod of each servo hydraulic cylinder is connected with the support platform, and the servo hydraulic cylinders are used to synchronously push the support platform to rotate, so that the support platform is rotated to different angular positions. The support platform is further provided with an angle detection member for detecting the rotation angle of the support platform.

8. The container portal crane according to claim 7, characterized in that, The swing angle range of the support platform is configured to increase when the rotation angle of the support platform increases; and / or, The number of swings of the support platform at any rotation angle is configured to decrease when the rotation angle of the support platform increases.

9. The container portal crane according to any one of claims 2-5, characterized in that, The support platform is further provided with a vibrator, and when the container is supported on the support platform, the vibrator is located at the bottom of the container, and the vibrator is used to vibrate the container.

10. A container gantry crane according to any one of claims 2-5, characterized in that, The unloading mechanism further comprises a plurality of limiting members arranged on the support platform, and the limiting members are arranged at intervals along the moving direction of the trolley, so that when the container is supported on the support platform, the limiting members are respectively located at the opposite sides of the container. The limiting member comprises a guiding portion and a limiting portion, the limiting portion is connected with the support platform, the guiding portion is connected with the end of the limiting portion away from the support platform, and the cross-sectional dimension of the guiding portion gradually decreases from the end close to the limiting portion to the end away from the limiting portion.

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