Mobile cranes

Abstract

The present invention discloses a mobile crane, which belongs to the technical field of cranes and solves the problem that the lifting hook of the existing crane pulls the goods and causes the goods to be squeezed each other, thereby causing damage to the goods. The mobile crane comprises: a crane body, the crane body comprises a lifting main beam and at least one group of lifting support beams fixedly connected to the lifting main beam; a mobile lifting part slidably mounted on the lifting main beam; an adjustable lifting component fixedly connected to the mobile lifting part, and the adjustable lifting component is used to lift and grab the goods; the present invention is provided with a lifting drive part and a split lifting part, the lifting drive part and the split lifting part cooperate to realize the separate lifting and grabbing of the goods, thereby avoiding the phenomenon that the goods are squeezed each other and cause damage to the goods, and the lifting drive part and the split lifting part can operate independently, and can adapt to the lifting and hoisting work of different goods in different environments.

Description

Technical Field

[0001] The invention belongs to the technical field of cranes, and in particular relates to a mobile crane. Background Art

[0002] A crane is a multi-action crane that can carry heavy objects vertically and horizontally within a certain range. The main features of a crane are: its travel and lifting control room are combined into one, and it is evolved from a crawler crane. The traveling mechanism and the traveling support part are changed into a chassis with tires, thus overcoming the disadvantage of crawler cranes that they cause damage to the road surface.

[0003] Chinese patent CN117228561A discloses a large-tonnage crane with an anti-rollover system, which relates to the technical field of cranes, including a main chassis, crawler walking devices are installed at both ends of the main chassis, a center rotating block is rotatably connected inside the main chassis, and a rotating component for driving the center rotating block to rotate is arranged inside the main chassis; the upper end of the center rotating block is fixedly connected to a lower chassis, a control room is arranged on one side of the upper end surface of the lower chassis, and a hydraulic power system is arranged on the upper end surface of the lower chassis near the control room; however, when the lifting hook of the existing crane is working, pulling the goods will cause mutual squeezing between the goods, thereby causing damage to the goods. Based on this, we have proposed a mobile crane. Summary of the invention

[0004] The purpose of the present invention is to provide a mobile crane to address the deficiencies of the prior art, thereby solving the problem that the lifting hook of the existing crane pulls the goods when working, causing the goods to be squeezed against each other, thereby causing damage to the goods.

[0005] When the lifting hook of the existing crane is working, pulling the goods will cause the goods to squeeze each other, thus causing damage to the goods. In order to solve the above problem, we propose a mobile crane. In short, the crane includes a crane body, a mobile lifting part and an adjustable lifting component, and the crane body includes a lifting main beam and at least one group of lifting support beams fixedly connected to the lifting main beam. The adjustable lifting component includes a lifting support seat, a lifting drive part arranged in the lifting support seat, and a split lifting part fixedly connected to the drive part. When working, when it is necessary to lift the goods or objects, the mobile lifting part is opened, the mobile lifting part is moved to the designated area, and then the adjustable lifting component is lowered. The lifting drive part in the adjustable lifting component is opened to drive the split lifting part to work, and multiple groups of the split lifting parts are used to lift or grab the goods in different areas respectively. After the lifting or grabbing is completed, the mobile lifting part is opened again to lift or move the goods or articles to complete the lifting operation. The embodiment of the present invention is provided with a lifting drive part and a split lifting part. The lifting drive part and the split lifting part cooperate to realize the separate lifting and grabbing of goods, thereby avoiding the phenomenon that the goods are squeezed against each other and cause damage to the goods. The lifting drive part and the split lifting part can operate independently and can adapt to the lifting and hoisting work of different goods in different environments.

[0006] The present invention is achieved in this way: a mobile crane, wherein the mobile crane comprises:

[0007] A crane body, the crane body comprising a lifting main beam and at least one set of lifting supporting beams fixedly connected to the lifting main beam;

[0008] A mobile hoisting part slidably mounted on the lifting main beam;

[0009] An adjustable lifting assembly fixedly connected to the mobile lifting part, the adjustable lifting assembly being used for lifting and grabbing cargo;

[0010] Wherein, the adjustable lifting assembly comprises:

[0011] Lifting support seat;

[0012] A lifting drive unit is arranged in the lifting support seat, and the lifting drive unit is used to adjust the distance between the goods to be lifted and grab the goods;

[0013] A split lifting part fixedly connected to the driving part is used to lift and grab goods and assist the lifting driving part in working.

[0014] Preferably, the mobile hoisting unit comprises:

[0015] A mobile base slidably mounted on the lifting main beam;

[0016] The hoisting drive unit is arranged on the mobile base and is fixedly connected to the lifting support seat. The hoisting drive unit is used to adjust the height of the lifting support seat, the lifting drive unit and the split lifting unit.

[0017] Preferably, the hoisting drive unit comprises:

[0018] A first motor, wherein the first motor is fixedly mounted on the mobile base;

[0019] A cable retracting tray fixedly mounted on the mobile base;

[0020] A cable reel is rotatably installed in the cable reel, one side of the cable reel is fixedly connected to the output end of the first motor, and a reel cable is wound around the cable reel, one end of the reel cable is fixedly connected to the lifting support seat.

[0021] Preferably, the hoisting drive unit further includes:

[0022] At least one set of cable guide rollers, the cable guide rollers are rotatably mounted on the movable base, and the cable guide rollers are used to guide and limit the retractable cables.

[0023] Preferably, the lifting drive unit comprises:

[0024] A second motor, the second motor is fixedly installed in the lifting support seat;

[0025] A first gear ring fixedly connected to the output end of the second motor, wherein the first gear ring is rotatably mounted in the lifting support seat;

[0026] At least one set of lifting linkage parts, the lifting linkage parts are connected to the first gear ring, and the lifting linkage parts are used to adjust the spacing of the goods to be lifted and grab the goods.

[0027] Preferably, the lifting linkage unit comprises:

[0028] A first gear, the first gear being rotatably mounted in the lifting support seat;

[0029] An adjusting threaded barrel fixedly connected to the first gear;

[0030] An adjusting screw rod penetrating the adjusting threaded barrel, wherein the adjusting screw rod and the adjusting threaded barrel are connected by threads;

[0031] A lifting clamp arm is installed at the end of the adjusting screw rod, and the lifting clamp arm is used to clamp and grab goods.

[0032] Preferably, the lifting linkage unit further comprises:

[0033] An adjusting guide rod is fixedly installed in the lifting support seat, and one end of the adjusting guide rod passes through the adjusting screw and is slidably connected to the adjusting screw.

[0034] Preferably, the split lifting unit comprises:

[0035] Split lifting seat;

[0036] A first adapting portion disposed on the split lifting base;

[0037] A second adapting portion connected to the first adapting portion, the first adapting portion and the second adapting portion working in cooperation with each other to adjust the cargo lifting angle;

[0038] A hook assembly connected to the second adapting portion, the hook assembly comprising a hook arm and a lifting hook, the lifting hook being detachably mounted on the hook arm, and the hook arm being connected to the second adapting portion.

[0039] Preferably, the first adaptation part comprises:

[0040] A third motor, the third motor is fixedly mounted on the split lifting seat;

[0041] A linkage swing arm fixedly connected to the output end of the third motor, wherein the fourth motor is fixedly mounted on the linkage swing arm;

[0042] A second gear, the second gear is arranged on one side of the fourth motor, and the second gear is fixedly connected to an output end of the fourth motor;

[0043] A third gear is arranged on one side of the second gear, and the third gear is rotationally connected to the linkage swing arm;

[0044] A lifting linkage shaft is fixedly connected to the third gear, and a side of the lifting linkage shaft away from the third gear is connected to the second adapting portion.

[0045] Preferably, the second adaptation part comprises:

[0046] An adaptable swing ring, wherein the adaptable swing ring is fixedly connected to one end of the lifting linkage shaft;

[0047] A second gear ring sleeved on the outside of the adaptive swing ring, wherein the second gear ring is fixedly connected to the adaptive swing ring;

[0048] An adaptable slider slidably mounted on the outside of the adaptable swing ring;

[0049] A sliding connection seat fixedly connected to the adaptable slider, the sliding connection seat being fixedly connected to the hook arm;

[0050] A fifth motor is fixedly mounted on the sliding connection seat, wherein an output end of the fifth motor is fixedly connected to a fourth gear, and the fourth gear is meshed with the second gear ring for transmission.

[0051] Compared with the prior art, the embodiments of the present application have the following beneficial effects:

[0052] The embodiment of the present invention is provided with a lifting drive part and a split lifting part. The lifting drive part and the split lifting part cooperate to realize the separate lifting and grabbing of goods, thereby avoiding the phenomenon that the goods are squeezed against each other and cause damage to the goods. The lifting drive part and the split lifting part can operate independently and can adapt to the lifting and hoisting work of different goods in different environments.

[0053] The embodiment of the present invention is provided with a split lifting part. The setting of the split lifting part can synchronously grab multiple groups of goods, thereby avoiding the problem of damage caused by mutual squeezing of goods during the lifting process. At the same time, the split lifting part can also flexibly adjust the grabbing position and angle, thereby reducing the difficulty of lifting the goods. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 It is a structural schematic diagram of the mobile crane provided by the present invention.

[0055] Figure 2 It is a three-dimensional structural schematic diagram of the mobile crane provided by the present invention.

[0056] Figure 3 It is a front view of the mobile crane provided by the present invention.

[0057] Figure 4 It is a structural schematic diagram of the mobile hoisting part provided by the present invention.

[0058] Figure 5 It is a schematic diagram of the three-dimensional structure of the mobile hoisting part provided by the present invention.

[0059] Figure 6 It is a front view of the mobile hoisting part provided by the present invention.

[0060] Figure 7 It is a structural schematic diagram of the adjustable lifting assembly provided by the present invention.

[0061] Figure 8 It is an axonometric view of the adjustable lifting assembly provided by the present invention.

[0062] Fig. 9 It is a front view of the adjustable lifting assembly provided by the present invention.

[0063] Fig.10It is a bottom view of the adjustable lifting assembly provided by the present invention.

[0064] Fig.11 It is a structural schematic diagram of the split lifting part provided by the present invention.

[0065] Fig.12 It is a schematic diagram of the three-dimensional structure of the split lifting part provided by the present invention.

[0066] Fig.13 It is a front view of the split lifting part provided by the present invention.

[0067] Fig.14 It is a top view of the split lifting part provided by the present invention.

[0068] In the figure: 1-crane body, 11-lifting support beam, 12-lifting main beam, 2-mobile lifting part, 21-mobile base, 22-lifting drive part, 221-first motor, 222-cable retractable disk, 223-cable reel, 224-cable guide roller, 3-adjustable lifting assembly, 31-lifting support seat, 32-lifting drive part, 321-second motor, 322-first gear ring, 33-lifting linkage part, 331-first gear, 332-adjusting threaded cylinder, 333-adjusting screw, 334-adjusting guide rod , 335-lifting clamping arm, 4-split lifting part, 41-split lifting seat, 42-first adapting part, 421-third motor, 422-linked swing arm, 423-fourth motor, 424-second gear, 425-third gear, 426-lifting linkage shaft, 43-second adapting part, 431-adaptive swing ring, 432-second gear ring, 433-adaptive slider, 434-sliding connecting seat, 435-fifth motor, 436-fourth gear, 44-hook assembly, 441-hook arm, 442-lifting hook. DETAILED DESCRIPTION

[0069] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by technicians in the technical field of this application; the terms used in the specification of the application herein are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification and claims of this application and the above-mentioned drawings are intended to cover non-exclusive inclusions. The terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects, not to describe a specific order.

[0070] When the lifting hook of the existing crane is working, pulling the goods will cause the goods to be squeezed against each other, thereby causing damage to the goods. In order to solve the above problem, we proposed a mobile crane. In short, the crane includes a crane body 1, a mobile lifting part 2 and an adjustable lifting component 3, and the crane body 1 includes a lifting main beam 12 and at least one group of lifting support beams 11 fixedly connected to the lifting main beam 12, and the adjustable lifting component 3 includes a lifting support seat 31, a lifting drive part 32 arranged in the lifting support seat 31, and a split lifting part 4 fixedly connected to the drive part. During operation, when it is necessary to lift goods or objects, the mobile lifting part 2 is opened, the mobile lifting part 2 is moved to the designated area, and then the adjustable lifting assembly 3 is lowered. The lifting drive part 32 in the adjustable lifting assembly 3 is opened to drive the split lifting part 4 to work. Multiple groups of split lifting parts 4 respectively lift or grab goods in different areas. After lifting or grabbing, the mobile lifting part 2 is opened again to lift or move the goods or articles to complete the lifting operation. The embodiment of the present invention is provided with a lifting drive part 32 and a split lifting part 4. The lifting drive part 32 and the split lifting part 4 work together to realize the lifting and grabbing of the goods respectively, thereby avoiding the phenomenon that the goods are squeezed against each other and cause damage to the goods. The lifting drive part 32 and the split lifting part 4 can work independently and can adapt to the lifting and hoisting of different goods in different environments.

[0071] The embodiment of the present invention provides a mobile crane, such as Figure 1-Figure 3 As shown, the mobile crane comprises:

[0072] The crane body 1 comprises a lifting main beam 12 and at least one set of lifting supporting beams 11 fixedly connected to the lifting main beam 12 .

[0073] It should be noted that the lifting main beam 12 can specifically be a rectangular seat or an "I"-shaped seat structure, and the two ends of the lifting main beam 12 are fixedly connected to the lifting support beam 11 by mortise and tenon or welding. The lifting support beam 11 is fixedly set on the ground or on the equipment platform to ensure the stability of the lifting operation.

[0074] A mobile hoisting part 2 slidably mounted on the lifting main beam 12;

[0075] An adjustable lifting assembly 3 fixedly connected to the mobile lifting part 2, wherein the adjustable lifting assembly 3 is used for lifting and grabbing cargo.

[0076] Among them, Figure 7-Figure 10 As shown, the adjustable lifting assembly 3 includes:

[0077] A lifting support seat 31, wherein the lifting support seat 31 may be a rectangular seat or a round seat with a hollow interior;

[0078] A lifting drive unit 32 disposed in the lifting support seat 31, the lifting drive unit 32 is used to adjust the distance between the goods to be lifted and to grab the goods;

[0079] The split lifting part 4 is fixedly connected to the driving part, and the split lifting part 4 is used to lift and grab the goods and assist the lifting driving part 32 in working.

[0080] In this embodiment, when it is necessary to lift the goods or objects during work, the mobile lifting part 2 is turned on, the mobile lifting part 2 is moved to the designated area, and then the adjustable lifting component 3 is lowered, and the lifting drive part 32 in the adjustable lifting component 3 is turned on to drive the split lifting part 4 to work, and multiple groups of split lifting parts 4 respectively lift or grab the goods in different areas. After the lifting or grabbing is completed, the mobile lifting part 2 is turned on again to lift or move the goods or articles to complete the lifting operation.

[0081] The embodiment of the present invention is provided with a lifting drive unit 32 and a split lifting unit 4. The lifting drive unit 32 and the split lifting unit 4 cooperate to realize the separate lifting and grabbing of goods, thereby avoiding the phenomenon that the goods are squeezed against each other and cause damage to the goods. The lifting drive unit 32 and the split lifting unit 4 can operate independently and can adapt to the lifting and hoisting work of different goods in different environments.

[0082] In a further preferred embodiment of the present invention, Figure 4-Figure 6 As shown, the mobile hoisting unit 2 includes:

[0083] The mobile base 21 is slidably mounted on the lifting main beam 12. It should be noted that the mobile base 21 may be a rectangular base or a round base with a hollow interior, and a stepping motor or a stepping mechanism for adjusting its horizontal position may be provided inside the mobile base 21. The stepping motor or the stepping mechanism is used to ensure that the mobile base 21 can move smoothly on the lifting main beam 12. The stepping motor or the stepping mechanism are both existing technologies and are not limited here.

[0084] The hoisting drive unit 22 is arranged on the mobile base 21, and the hoisting drive unit 22 is fixedly connected to the lifting support seat 31, and the hoisting drive unit 22 is used to adjust the height of the lifting support seat 31, the hoisting drive unit 32 and the split lifting unit 4.

[0085] In this embodiment, the hoisting drive unit 22 includes:

[0086] A first motor 221, the first motor 221 is fixedly mounted on the mobile base 21, a PLC controller for controlling the first motor 221 is disposed on the lifting beam 11 or remotely, the first motor 221 and the PLC controller are connected by Bluetooth or electricity, and the first motor 221 is fixedly mounted on the mobile base 21 by mortise and tenon or riveting;

[0087] A cable receiving and releasing tray 222 fixedly mounted on the mobile base 21;

[0088] The cable reel 223 is rotatably installed in the cable reel-out disk 222 , one side of the cable reel 223 is fixedly connected to the output end of the first motor 221 , and a reel-out cable is wound around the cable reel 223 , one end of the reel-out cable is fixedly connected to the lifting support seat 31 .

[0089] During operation, the first motor 221 is turned on. The start of the first motor 221 can drive the cable reel 223 to rotate. When the cable reel 223 rotates, it can drive the retractable cable to be retracted, so that the retractable cable pulls the lifting support seat 31, the lifting drive part 32 and the split lifting part 4 to move up and down, which facilitates the lifting operation of the goods.

[0090] It should be noted that the cable retractable disk 222 is rotatably connected to the cable reel 223 by a bearing. At the same time, the cable retractable disk 222 can be fixedly installed on the mobile base 21 by fastening bolts or snaps. The cable reel 223 can specifically be a hollow disk or round seat. One side of the cable reel 223 is fixedly connected to the output end of the first motor 221 by mortise and tenon or interference fit. The retractable cable can be a steel wire rope, one end of the retractable cable is fixedly installed on the side wall of the cable reel 223 by welding or riveting, and the other end of the retractable cable is fixedly connected to the lifting support seat 31 by snaps or rivets.

[0091] At least one group of cable guide rollers 224, the cable guide rollers 224 are rotatably mounted on the mobile base 21, and the cable guide rollers 224 are used to guide and limit the retractable cables. The cable guide rollers 224 can specifically be round rollers or round rods with a friction layer on the surface, and the cable guide rollers 224 are rotatably mounted on the mobile base 21 using bearings or rollers.

[0092] The embodiment of the present invention is provided with a cable guide roller 224. The setting of the cable guide roller 224 realizes the guiding and limiting of the retractable cables, thereby avoiding the sliding of the retractable cables and ensuring the stability of the goods during lifting. The spacing avoids the phenomenon of goods being squeezed against each other due to the sliding of the retractable cables.

[0093] In a further preferred embodiment of the present invention, Figure 7-Figure 10As shown, the lifting drive unit 32 includes:

[0094] A second motor 321, the second motor 321 is fixedly installed in the lifting support seat 31, the second motor 321 can be a single-phase asynchronous motor, and the output end of the second motor 321 is fixedly installed in the lifting support seat 31 by using mortise and tenon joints or fastening bolts;

[0095] A first gear ring 322 fixedly connected to the output end of the second motor 321, the first gear ring 322 is rotatably mounted in the lifting support seat 31, the output end of the second motor 321 is fixedly connected to the first gear ring 322 by interference fit, and the first gear ring 322 can be rotatably connected to the lifting support seat 31 through a bearing or a guide circular rail;

[0096] At least one set of lifting linkage parts 33, wherein the lifting linkage parts 33 are connected to the first gear ring 322, and the lifting linkage parts 33 are used to adjust the spacing of the goods to be lifted and grab the goods.

[0097] In this embodiment, the lifting linkage unit 33 includes:

[0098] The first gear 331 is rotatably mounted in the lifting support seat 31, the first gear 331 is meshed with the first gear ring 322 for transmission, and the number of the first gears 331 can be three, four or six groups, the first gear 331 is rotatably connected to the lifting support seat 31 by a bearing sleeve, and the bearing sleeve is fixedly mounted in the lifting support seat 31;

[0099] An adjusting threaded barrel 332 fixedly connected to the first gear 331, wherein the adjusting threaded barrel 332 is fixedly connected to the inner wall of the first gear 331 by mortise and tenon or riveting;

[0100] An adjusting screw 333 that penetrates the adjusting threaded barrel 332, wherein the adjusting screw 333 and the adjusting threaded barrel 332 are connected by threads;

[0101] A lifting clamp arm 335 is installed at the end of the adjusting screw rod 333, and the lifting clamp arm 335 is used to clamp and grab goods.

[0102] It should be noted that the setting of the lifting clamp arm 335 can synchronously clamp a single cargo, so that the cargo can be stably lifted and clamped when there is no need to start the split lifting part 4, and the lifting clamp arm 335 can be an "L"-shaped clamping seat or a crank seat structure, and the lifting clamp arm 335 is fixedly connected to the end of the adjusting screw 333 by mortise and tenon or welding.

[0103] The adjusting guide rod 334 is fixedly installed in the lifting support seat 31 , and one end of the adjusting guide rod 334 passes through the adjusting screw 333 and is slidably connected to the adjusting screw 333 .

[0104] In this embodiment, the setting of the adjustment guide rod 334 realizes the guiding and limiting of the adjustment screw 333. At the same time, the adjustment guide rod 334 can be a rectangular rod or a round rod, and the adjustment guide rod 334 is fixedly installed in the lifting support seat 31 by mortise and tenon or riveting.

[0105] During operation, when it is necessary to clamp a single large cargo or multiple groups of cargo separately, the second motor 321 is turned on. The start of the second motor 321 can drive the first gear ring 322 to rotate. The rotation of the first gear ring 322 can drive the first gear 331 and the adjusting threaded cylinder 332 to rotate. When the adjusting threaded cylinder 332 rotates, it can drive the lifting clamp arm 335 to move, so that the lifting clamp arm 335 can clamp a single large cargo. At the same time, when the lifting clamp arm 335 moves, it can drive the split lifting part 4 to move, so that the split lifting part 4 can synchronously grab multiple groups of cargo.

[0106] In a further preferred embodiment of the present invention, Figure 11-Figure 14 As shown, the split lifting unit 4 includes:

[0107] A split lifting seat 41, wherein the split lifting seat 41 is fixedly mounted on the end of the lifting clamp arm 335 by welding or riveting;

[0108] A first adapting portion 42 disposed on the split lifting base 41;

[0109] A second adapting portion 43 connected to the first adapting portion 42, wherein the first adapting portion 42 cooperates with the second adapting portion 43 to adjust the cargo lifting angle;

[0110] The hook assembly 44 is connected to the second adapting portion 43 , and the hook assembly 44 includes a hook arm 441 and a lifting hook 442 . The lifting hook 442 is detachably mounted on the hook arm 441 , and the hook arm 441 is connected to the second adapting portion 43 .

[0111] It should be noted that the hook arm 441 may be an “L”-shaped arm or an “L”-shaped seat structure, and the hook arm 441 and the lifting hook 442 may be detachably connected by a snap or thread.

[0112] In this embodiment, when working, the first adaptable part 42 and the second adaptable part 43 are opened, and the first adaptable part 42 and the second adaptable part 43 cooperate with each other to flexibly adjust the inclination angle and position of the hook assembly 44, thereby facilitating the grabbing of goods of different types and in different environments.

[0113] The embodiment of the present invention is provided with a split lifting part 4. The setting of the split lifting part 4 can synchronously grab multiple groups of goods, thereby avoiding the problem of damage caused by mutual squeezing of goods during the lifting process. At the same time, the split lifting part 4 can also flexibly adjust the grabbing position and angle, thereby reducing the difficulty of lifting the goods.

[0114] In a further preferred embodiment of the present invention, Figure 11-Figure 12 As shown, the first adapting portion 42 includes:

[0115] A third motor 421, wherein the third motor 421 is fixedly mounted on the split lifting base 41, the third motor 421 is electrically connected to the PLC controller, and the third motor 421 is fixedly mounted on the split lifting base 41 by welding or riveting;

[0116] A linkage swing arm 422 fixedly connected to the output end of the third motor 421, a fourth motor 423 fixedly mounted on the linkage swing arm 422, one end of the linkage swing arm 422 can be fixedly connected to the output end of the third motor 421 by mortise or riveting, and the linkage swing arm 422 can be an arc-shaped seat or an arc-shaped rod, and the fourth motor 423 is fixedly mounted on the other end of the linkage swing arm 422 by mortise or riveting, and the output end of the fourth motor 423 can be fixedly connected to the second gear 424 by interference fit;

[0117] A second gear 424, wherein the second gear 424 is disposed on one side of the fourth motor 423, and the second gear 424 is fixedly connected to an output end of the fourth motor 423;

[0118] A third gear 425 is disposed on one side of the second gear 424, the third gear 425 is rotatably connected to the linkage swing arm 422, and the second gear 424 and the third gear 425 are meshed for transmission;

[0119] A lifting linkage shaft 426 is fixedly connected to the third gear 425 , and a side of the lifting linkage shaft 426 away from the third gear 425 is connected to the second adapting portion 43 .

[0120] In this embodiment, when working, the third motor 421 and the fourth motor 423 are turned on. The start of the third motor 421 can drive the linkage swing arm 422 to rotate, so that the linkage swing arm 422 drives the fourth motor 423, the lifting linkage shaft 426 and the second adaptation part 43 to swing, thereby realizing the adjustment of the inclination angle of the hook assembly 44. At the same time, the start of the fourth motor 423 can drive the second gear 424 and the third gear 425 to rotate. When the third gear 425 rotates, it can drive the lifting linkage shaft 426 and the second adaptation part 43 to swing, thereby further realizing the flexible adjustment of the inclination angle and position of the hook assembly 44.

[0121] In a further preferred embodiment of the present invention, Figure 11-Figure 12 As shown, the second adaptation part 43 includes:

[0122] An adaptable swing ring 431, wherein the adaptable swing ring 431 is fixedly connected to one end of the lifting linkage shaft 426;

[0123] A second gear ring 432 sleeved on the outside of the adaptable swing ring 431, wherein the second gear ring 432 is fixedly connected to the adaptable swing ring 431;

[0124] It should be noted that the adaptive swing ring 431 and the second gear ring 432 have openings on one side close to the third motor 421, and the ends of the adaptive swing ring 431 and the second gear ring 432 are fixedly connected by mortise and tenon or rivet, and the adaptive swing ring 431 can specifically be a circular ring with a hollow interior.

[0125] An adaptable slider 433 slidably mounted on the outside of the adaptable swing ring 431;

[0126] It should be noted that the adaptable slider 433 is disposed between the second gear ring 432 and the adaptable swing ring 431 . The adaptable slider 433 may be an arc-shaped slider or a circular slider. One side of the adaptable slider 433 is welded or clamped to the sliding connection seat 434 .

[0127] A sliding connection seat 434 fixedly connected to the adapting slider 433, wherein the sliding connection seat 434 is fixedly connected to the hook arm 441;

[0128] A fifth motor 435 is fixedly mounted on the sliding connection seat 434, and an output end of the fifth motor 435 is fixedly connected to a fourth gear 436, which is meshed with the second gear ring 432 for transmission. Meanwhile, in order to ensure the transmission stability of the fourth gear 436 and the second gear ring 432, the fourth gear 436 can be rotatably connected to the sliding connection seat 434 via a bearing seat.

[0129] In this embodiment, when working, the fifth motor 435 is turned on, and the fifth motor 435 can drive the fourth gear 436 to rotate. When the fourth gear 436 rotates, the second gear ring 432 meshes with the fourth gear 436 and the fifth motor 435, so that the fourth gear 436 drives the fifth motor 435, the sliding connection seat 434 and the hook assembly 44 to rotate around the vertical center axis of the adaptive swing ring 431, thereby facilitating the rotation of the hook assembly 44 and the cargo, and realizing the adjustment of the cargo lifting and clamping posture.

[0130] In summary, the present invention provides a mobile crane. When it is necessary to lift goods or objects during operation, the mobile lifting part 2 is opened, the mobile lifting part 2 is moved to a designated area, and then the adjustable lifting assembly 3 is lowered. The lifting drive part 32 in the adjustable lifting assembly 3 is opened to drive the split lifting part 4 to work. Multiple groups of split lifting parts 4 respectively lift or grab goods in different areas. After the lifting or grabbing is completed, the mobile lifting part 2 is opened again to lift or move the goods or articles to complete the lifting operation.

[0131] During operation, when it is necessary to clamp a single large cargo or multiple groups of cargo separately, the second motor 321 is turned on. The start of the second motor 321 can drive the first gear ring 322 to rotate. The rotation of the first gear ring 322 can drive the first gear 331 and the adjusting threaded cylinder 332 to rotate. When the adjusting threaded cylinder 332 rotates, it can drive the lifting clamp arm 335 to move, so that the lifting clamp arm 335 can clamp a single large cargo. At the same time, when the lifting clamp arm 335 moves, it can drive the split lifting part 4 to move, so that the split lifting part 4 can synchronously grab multiple groups of cargo.

[0132] The embodiment of the present invention is provided with a lifting drive unit 32 and a split lifting unit 4. The lifting drive unit 32 and the split lifting unit 4 cooperate to realize the separate lifting and grabbing of goods, thereby avoiding the phenomenon that the goods are squeezed against each other and cause damage to the goods. The lifting drive unit 32 and the split lifting unit 4 can operate independently and can adapt to the lifting and hoisting work of different goods in different environments.

[0133] It should be noted that, for the above-mentioned embodiments, for the sake of simplicity, they are all described as a series of action combinations, but those skilled in the art should know that the present invention is not limited by the described order of actions, because according to the present invention, some steps may be performed in other orders or simultaneously. Secondly, those skilled in the art should also know that the embodiments described in the specification are all preferred embodiments, and the actions and modules involved are not necessarily required by the present invention.

[0134] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on these embodiments, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in this field can still combine, add, delete or make other adjustments to the features in the various embodiments of the present invention according to the circumstances without conflict, without making creative work, so as to obtain different other technical solutions that do not deviate from the concept of the present invention in essence, and these technical solutions also belong to the scope of protection of the present invention.

Claims

1. A mobile crane, comprising: A crane body (1), the crane body (1) comprising a lifting main beam (12) and at least one set of lifting support beams (11) fixedly connected to the lifting main beam (12); Characterized in that the mobile hoisting part (2) is slidably mounted on the lifting main beam (12); An adjustable lifting component (3) fixedly connected to the mobile lifting part (2), the adjustable lifting component (3) being used to lift and grab cargo; Wherein, the adjustable lifting assembly (3) comprises: Lifting support seat (31); A lifting drive unit (32) disposed in the lifting support seat (31), the lifting drive unit (32) being used to adjust the spacing of goods to be lifted and to grab the goods; a split lifting part (4) fixedly connected to the lifting drive part (32), the split lifting part (4) being used to lift and grab goods and assist the lifting drive part (32) in working; The mobile hoisting unit (2) comprises: A movable base (21) slidably mounted on the lifting main beam (12); A hoisting drive unit (22), the hoisting drive unit (22) being arranged on the mobile base (21), and the hoisting drive unit (22) being fixedly connected to the lifting support seat (31), and the hoisting drive unit (22) being used to adjust the height of the lifting support seat (31), the hoisting drive unit (32) and the split lifting unit (4); The lifting drive unit (32) comprises: A second motor (321), the second motor (321) being fixedly mounted in the lifting support seat (31); A first gear ring (322) fixedly connected to the output end of the second motor (321), wherein the first gear ring (322) is rotatably mounted in the lifting support seat (31); At least one set of lifting linkage parts (33), the lifting linkage parts (33) being connected to the first gear ring (322), the lifting linkage parts (33) being used to adjust the spacing of goods to be lifted and to grab the goods; The split lifting part (4) comprises: Split lifting seat (41); A first adapting portion (42) provided on the split lifting base (41); a second adapting portion (43) connected to the first adapting portion (42), wherein the first adapting portion (42) cooperates with the second adapting portion (43) to adjust a cargo lifting angle; a hook assembly (44) connected to the second adaptable portion (43), the hook assembly (44) comprising a hook arm (441) and a lifting hook (442), the lifting hook (442) being detachably mounted on the hook arm (441), and the hook arm (441) being connected to the second adaptable portion (43); The first adapting part (42) comprises: A third motor (421), wherein the third motor (421) is fixedly mounted on the split lifting base (41); a linkage swing arm (422) fixedly connected to the output end of the third motor (421), the linkage swing arm (422) having a fourth motor (423) fixedly mounted on it; a second gear (424), the second gear (424) being arranged on one side of the fourth motor (423), and the second gear (424) being fixedly connected to an output end of the fourth motor (423); a third gear (425) disposed on one side of the second gear (424), the third gear (425) being rotationally connected to the linkage swing arm (422); a lifting linkage shaft (426) fixedly connected to the third gear (425), wherein a side of the lifting linkage shaft (426) away from the third gear (425) is connected to the second adapting portion (43); The second adaptation part (43) comprises: An adaptable swing ring (431), the adaptable swing ring (431) being fixedly connected to one end of the lifting linkage shaft (426); a second gear ring (432) sleeved on the outside of the adaptable swing ring (431), the second gear ring (432) being fixedly connected to the adaptable swing ring (431); An adaptable sliding block (433) slidably mounted outside the adaptable swing ring (431); A sliding connection seat (434) fixedly connected to the adaptable sliding block (433), wherein the sliding connection seat (434) is fixedly connected to the hook arm (441); A fifth motor (435) is fixedly mounted on the sliding connection seat (434); an output end of the fifth motor (435) is fixedly connected to a fourth gear (436); and the fourth gear (436) is meshed with the second gear ring (432) for transmission.

2. The mobile crane according to claim 1, characterized in that: The hoisting drive unit (22) comprises: A first motor (221), the first motor (221) being fixedly mounted on the mobile base (21); A cable collection and release tray (222) fixedly mounted on the mobile base (21); A cable reel (223) is rotatably mounted in the cable reel (222), one side of the cable reel (223) being fixedly connected to the output end of the first motor (221), and a reeling cable is wound around the cable reel (223), one end of the reeling cable being fixedly connected to the lifting support seat (31).

3. The mobile crane according to claim 2, characterized in that: The hoisting drive unit (22) further comprises: At least one set of cable guide rollers (224), the cable guide rollers (224) being rotatably mounted on the movable base (21), and the cable guide rollers (224) being used to guide and limit the retractable cables.

4. The mobile crane according to claim 3, characterized in that: The lifting linkage part (33) comprises: A first gear (331), the first gear (331) being rotatably mounted in the lifting support seat (31); An adjusting threaded cylinder (332) fixedly connected to the first gear (331); an adjusting screw rod (333) penetrating the adjusting threaded barrel (332), wherein the adjusting screw rod (333) and the adjusting threaded barrel (332) are connected by threads; A lifting clamp arm (335) is installed at the end of the adjusting screw rod (333), and the lifting clamp arm (335) is used to clamp and grab goods.

5. The mobile crane according to claim 4, characterized in that: The lifting linkage part (33) further comprises: An adjusting guide rod (334) is fixedly mounted in the lifting support seat (31), and one end of the adjusting guide rod (334) passes through the adjusting screw rod (333) and is slidably connected to the adjusting screw rod (333).

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