Straddle carrier capable of adjusting lifting point position

Abstract

The utility model discloses a straddle carrier capable of adjusting a lifting point position, and relates to the technical field of straddle carriers, in particular to the straddle carrier capable of adjusting the lifting point position, which comprises a frame, two parallel auxiliary beams are fixedly mounted on the frame, and an adjusting cylinder is sleeved on the outer side wall of each auxiliary beam; the container is hoisted through the two hoisting mechanisms in the hoisting device, the container is hung through the flexible steel member, and the transverse position of the hoisting point of the flexible steel member is adjusted by sliding displacement of the adjusting cylinder on the auxiliary beam, so that the hoisting point of the flexible steel member corresponds to the hoisting part of the container up and down; therefore, the flexible steel member can vertically lift the container, the flexible steel member is always in a vertical state in the process of lifting the container and can vertically ascend after the container is off the ground, the container is prevented from shaking in the lifting process, and then the risks that the straddle carrier rolls over and the supporting legs are collided and damaged by the container are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of straddle carriers, in particular to a straddle carrier with adjustable lifting points. Background Art

[0002] Container straddle carriers are the main type of container loading and unloading equipment, usually responsible for horizontal transportation from the front of the wharf to the yard and container stacking at the yard. At present, container transporters are responsible for lifting, transporting and transferring containers to the destination for unloading. This requires that the transporter can quickly and accurately align its lifting device with the container when lifting the container, and prevent the container from shaking during the transportation and transfer process. The existing technology has the following defects: the transporter has a rigid structure. When encountering obstacles such as potholes or gravel during driving, it is easy to bump and cause the container to shake, posing a transportation safety hazard.

[0003] In the published Chinese patent application, publication number: CN220703037U, patent name: container handling vehicle, this prior art is to fix one end of the first bracket along the first direction to the third bracket, and hinge the other end along the first direction to the second bracket. When the driving mechanism of the second bracket encounters obstacles such as potholes or gravel during driving, the second bracket itself can swing around the hinge point to reduce the shaking of the first bracket, thereby reducing the shaking of the container and ensuring the smooth transportation of the container; when the driving mechanism of the third bracket encounters obstacles such as potholes or gravel during driving, the third bracket and the second bracket can swing around the hinge point as a whole to reduce the shaking of the first bracket, thereby reducing the shaking of the container. The container handling vehicle has a simple structure and stable transportation, and effectively ensures the transportation and installation of the container.

[0004] Although the prior art can solve the above problems, it has certain limitations in its specific implementation. In the specific implementation process, the transport vehicle frame rides on the container, and the support legs on the two length sides of the transport vehicle are at a certain distance from the two side walls of the container, and these two distances are inconsistent, that is, the transport vehicle is not directly above the container. In this case, when the transport vehicle lifts the container, the lifting rope of the transport vehicle cannot lift the container vertically. Due to the inclination of the lifting rope, after the container is lifted off the ground, the container shakes to a certain extent, resulting in the risk of the transport vehicle tipping over and the support legs being damaged by the collision with the container.

[0005] In summary, in order to solve the problems existing in the prior art, this case is proposed to solve them. Utility Model Content

[0006] 1. Technical issues to be solved

[0007] In view of the deficiencies in the prior art, the utility model provides a straddle carrier with adjustable lifting points, which solves the problems raised in the above-mentioned background technology.

[0008] (II) Technical solution

[0009] To achieve the above purpose, the utility model is implemented through the following technical solutions: a straddle carrier with adjustable lifting points, which is used for container transportation, comprises a frame, two parallel auxiliary beams are fixedly mounted on the frame, an adjustment cylinder is mounted on the outer side wall of each auxiliary beam, and the adjustment cylinder is slidably connected to the auxiliary beam; the inner lower space of the frame constitutes a container lifting position, and the four corners of the container are all lifting parts; a lifting device is arranged on the frame, and the lifting device comprises two lifting mechanisms, which are respectively arranged at the ends where the upper width of the frame is located, and the lifting mechanism lifts the container at the width of the container There are two lifting parts at the ends; the lifting mechanism includes a driving component and two flexible steel components, the driving component is horizontally arranged on the frame, the middle parts of the two flexible steel components are both wrapped around the outer wall of the adjusting cylinder, and the points where the flexible steel components are wrapped around the outer wall of the adjusting cylinder are the lifting points; one ends of the two flexible steel components are respectively vertical to the two lifting parts at the ends where the container width is located, and the ends of the flexible steel components pull the container lifting parts; the other ends of the two flexible steel components are fixedly installed on the power output ends of the driving component; after the adjusting cylinder is slidably displaced on the auxiliary beam, the lifting points of the flexible steel components are laterally offset relative to the frame.

[0010] Optionally, a second driving member is provided on the frame, an output shaft end of the second driving member is hinged to the adjusting cylinder, and the second driving member drives the adjusting cylinder to slide and displace on the auxiliary beam.

[0011] Optionally, the lifting device also includes a sling, which is located at the lifting position, and two lifting mechanisms pull and hang the two ends of the sling, and the four corners of the sling are fixedly installed with slings; the flexible steel structure pulls and hangs the corner of the sling at one end of the container vertically.

[0012] Optionally, the frame includes two first beams parallel to each other, two second beams parallel to each other, and at least four supporting legs, the two ends of the two second beams are respectively fixedly connected to the two first beams, and the upper ends of the supporting legs are fixedly connected to the first beams.

[0013] Optionally, the driving component includes a first driving member, an articulated seat, a guide frame, and a weighing sensor. The articulated seat and the guide frame are welded to the outer wall of the first crossbeam. One end of the cylinder portion of the first driving member is hinged to the articulated seat, and the other end of the cylinder portion of the first driving member is mounted on the guide frame. The output shaft end of the first driving member is fixedly installed on two flexible steel components. The weighing sensor is arranged at the output shaft end of the first driving member, and the detection element of the weighing sensor is located on the two flexible steel components.

[0014] Optionally, at least two fixed pulleys are fixedly mounted on the outer side wall of the adjusting cylinder, and the middle parts of the two flexible steel components are respectively wound in the roller grooves of the two fixed pulleys.

[0015] Optionally, the flexible steel member is made of a steel wire rope or a chain.

[0016] Optionally, the second driving member is a hydraulic cylinder or an electric cylinder.

[0017] Optionally, the first driving member is a hydraulic cylinder.

[0018] (III) Beneficial effects

[0019] The utility model provides a straddle carrier with adjustable lifting points, which has the following beneficial effects:

[0020] The straddle carrier with adjustable lifting points has the effect of adjusting the lifting points through the coordinated arrangement of the vehicle frame, the auxiliary beam, the adjustment cylinder and the lifting device. The container is lifted by two lifting mechanisms in the lifting device, and the container is hung by the flexible steel member. The lateral position of the lifting point of the flexible steel member is adjusted by sliding the adjustment cylinder on the auxiliary beam, so that the lifting point of the flexible steel member corresponds to the lifting part of the container up and down, so that the flexible steel member can lift the container vertically. The flexible steel member is always in a vertical state during the process of lifting the container, and can also rise vertically after the container leaves the ground, so as to avoid the shaking of the container during the lifting process, and thus avoid the risk of the straddle carrier tipping over and the support legs being damaged by the collision of the container. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0022] Figure 1 It is a three-dimensional structural schematic diagram of a straddle carrier with adjustable lifting points according to the utility model;

[0023] Figure 2 for Figure 1 The enlarged structural diagram at A in the middle;

[0024] Figure 3 This is a three-dimensional structural schematic diagram of a straddle carrier with adjustable lifting points according to the utility model (in the state when stacking containers);

[0025] Figure 4 for Figure 3 The enlarged structural diagram at B in the middle;

[0026] Figure 5 The utility model is a three-dimensional structural schematic diagram of a straddle carrier with adjustable lifting points (the state when carrying containers).

[0027] In the figure: 1. frame; 101. first crossbeam; 102. second crossbeam; 103. supporting leg; 2. sling; 3. auxiliary beam; 4. adjusting cylinder; 5. supporting frame; 6. driving component; 601. first driving member; 602. articulated seat; 603. pin shaft; 604. guide frame; 605. weighing sensor; 7. first steel wire rope; 8. second steel wire rope; 9. second driving member; 10. first fixed pulley; 11. second fixed pulley; 12. third fixed pulley; 13. fourth fixed pulley; 14. sling. DETAILED DESCRIPTION

[0028] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings. In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indications or implications.

[0029] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0030] See also Figures 1 to 5 The utility model provides a technical solution: a straddle carrier with adjustable lifting points, which is used for container transportation, and includes a frame 1, on which two parallel auxiliary beams 3 are fixedly mounted, and an adjusting cylinder 4 is mounted on the outer side wall of each auxiliary beam 3, and the adjusting cylinder 4 is slidably connected to the auxiliary beam 3.

[0031] The lateral position of the adjusting cylinder 4 can be adjusted by sliding the adjusting cylinder 4 on the auxiliary beam 3 , that is, the position of the adjusting cylinder 4 relative to the vehicle frame 1 can be adjusted.

[0032] The inner lower space of the frame 1 constitutes the container lifting position, and the four corners of the container are all lifting parts. A lifting device is arranged on the frame 1, and the lifting device includes two lifting mechanisms, which are respectively arranged at the ends where the width of the upper part of the frame 1 is located, and the lifting mechanisms lift the two lifting parts at the ends where the width of the container is located.

[0033] The lifting device is used to lift the container on the frame 1. The two lifting mechanisms are used to synchronously hang the two ends of the container. The four corners of the container are all lifting parts, wherein the four corners refer to the corners of the container at the four directions.

[0034] The lifting mechanism includes a driving component 6 and two flexible steel members. The driving component 6 is transversely arranged on the frame 1. The middle parts of the two flexible steel members are wound around the outer wall of the adjustment cylinder 4. The points where the flexible steel members are wound around the outer wall of the adjustment cylinder 4 are lifting points. One end of the two flexible steel members is vertical to the two lifting parts at the ends of the container width, and the ends of the flexible steel members pull the container lifting parts. The other ends of the two flexible steel members are fixedly installed with the power output end of the driving component 6. After the adjustment cylinder 4 is slidably displaced on the auxiliary beam 3, the lifting point of the flexible steel member is laterally offset relative to the frame 1.

[0035] The driving component 6 is a power source, and the power output end of the driving component 6 pulls the two flexible steel components to move. The driving component 6 pulls the two corners of the container width side through the two flexible steel components, thereby lifting one end of the container. The container is lifted by the two lifting mechanisms in the lifting device, and the container is hung by the flexible steel component. The horizontal position of the lifting point of the flexible steel component is adjusted by sliding the adjustment cylinder 4 on the auxiliary beam 3, so that the lifting point of the flexible steel component corresponds to the lifting part of the container up and down, so that the flexible steel component can lift the container vertically. The flexible steel component is always in a vertical state during the process of lifting the container, and can also rise vertically after the container leaves the ground, so as to avoid the shaking of the container during the lifting process, thereby avoiding the risk of the straddle carrier frame 1 tipping over and the frame 1 being damaged by the container.

[0036] Specifically, the frame 1 is provided with a second driving member 9, the output shaft end of the second driving member 9 is hinged to the adjusting cylinder 4, and the second driving member 9 drives the adjusting cylinder 4 to slide and move on the auxiliary beam 3. The second driving member 9 is a hydraulic cylinder or an electric cylinder, but is not limited to a hydraulic cylinder or an electric cylinder, and other devices with the same or similar functions may also be used.

[0037] The second driving member 9 is used to drive the adjusting cylinder 4 to slide and displace on the auxiliary beam 3. The cylinder portion of the second driving member 9 is fixedly mounted (or hinged) to the frame 1, and the output shaft end (piston rod end) of the second driving member 9 is fixedly mounted (or hinged) to the outer side wall of the adjusting cylinder 4. After the second driving member 9 is started, its output shaft pushes or pulls the adjusting cylinder 4 to slide and displace along the auxiliary beam 3.

[0038] Specifically, the lifting device also includes a sling 2, which is located at the lifting position, and two lifting mechanisms pull and hang the two ends of the sling 2, and the four corners of the sling 2 are fixedly installed with slings 14. The flexible steel member pulls and hangs the corner of the sling 2 at one end of the vertical container.

[0039] The sling 2 is used to stabilize the lower end of the flexible steel member. The lower ends of the four flexible steel members in the lifting device are respectively hung on the four corners of the sling 2, and the four corners of the sling 2 are respectively hung on the four lifting parts of the container through the slings 14. The slings 14 are chains and the like, and are ropes with certain strength and toughness.

[0040] Specifically, the frame 1 includes two first beams 101 parallel to each other, two second beams 102 parallel to each other, and at least four support legs 103. The two ends of the two second beams 102 are fixedly connected to the two first beams 101 respectively, and the upper ends of the support legs 103 are fixedly connected to the first beams 101.

[0041] The lower end of each support leg 103 is provided with a wheel, and the support leg 103 is composed of a plurality of cylinders that are sequentially plugged into each other, and each cylinder is retractable. A support frame 5 is fixedly connected to the outer wall of the upper part of the support leg 103, and the support frame 5 is arranged in an inclined manner. The upper end of the support frame 5 is fixedly connected to the end of the first crossbeam 101, and the support frame 5 is used to tilt and support the end of the first crossbeam 101, so as to improve the weighing capacity of the end of the first crossbeam 101.

[0042] More specifically, the driving component 6 includes a first driving member 601, an articulated seat 602, a guide frame 604, and a weighing sensor 605. The articulated seat 602 and the guide frame 604 are welded to the outer wall of the first crossbeam 101. One end of the cylinder portion of the first driving member 601 is articulated with the articulated seat 602, and the other end of the cylinder portion of the first driving member 601 is mounted on the guide frame 604. The output shaft end of the first driving member 601 is fixedly mounted with two flexible steel members. The weighing sensor 605 is arranged at the output shaft end of the first driving member 601, and the detection element of the weighing sensor 605 is located on the two flexible steel members. The first driving member 601 adopts a hydraulic cylinder, and the first driving member 601 may also adopt other devices with the same or similar functions.

[0043] One end of the cylinder portion of the first driving member 601 is hinged to the hinge seat 602 via a pin 603. The flexible steel member is a steel wire rope or a chain. When the flexible steel member is a steel wire rope, the two strands of the flexible steel member are a first steel wire rope 7 and a second steel wire rope 8 respectively.

[0044] Specifically, at least two fixed pulleys are fixedly mounted on the outer wall of the adjusting cylinder 4, and the middle parts of the two flexible steel components are respectively wound in the roller grooves of the two fixed pulleys. The flexible steel component is one of a steel wire rope and a chain.

[0045] Among them, the fixed pulley is used to change the direction of the traction force of the flexible steel member. The first fixed pulley 10, the second fixed pulley 11, the third fixed pulley 12, and the fourth fixed pulley 13 are fixedly installed on the outer wall of the adjustment cylinder 4. One end of the first steel wire rope 7 is fixedly connected to the output shaft end of the first driving member 601, the middle part of the first steel wire rope 7 passes through the roller groove of the first fixed pulley 10, and the other end of the first steel wire rope 7 is fixedly connected to a corner on the side where the width of the sling 2 is located. One end of the second steel wire rope 8 is fixedly connected to the output shaft end of the first driving member 601, the middle part of the second steel wire rope 8 passes through the roller grooves of the second fixed pulley 11, the third fixed pulley 12, and the fourth fixed pulley 13 in turn, and the other end of the second steel wire rope 8 is fixedly connected to another corner on the side where the width of the sling 2 is located.

[0046] When in use, the straddle carrier travels to the container and rides on top of the container. The second driving member 9 is started, and the second driving member 9 drives the adjustment cylinder 4 to slide along the auxiliary beam 3, and the adjustment cylinder 4 drives the lifting point of the flexible steel member to move, thereby adjusting the position of the lifting point of the flexible steel member, so that the lifting point of the flexible steel member is adjusted to correspond to the lifting part of the container.

[0047] The containers are hung by the slings 14 on the spreader 2.

[0048] Start the lifting device. Start the two first driving members 601, the output shaft end of the first driving member 601 shrinks, the output shaft of the first driving member 601 pulls the first steel wire rope 7 and the second steel wire rope 8, the first steel wire rope 7 and the second steel wire rope 8 lift the sling 2, and the sling 2 drives the container to rise.

[0049] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A straddle carrier with adjustable lifting points, used for container transportation, characterized by: The vehicle comprises a frame (1), on which two parallel auxiliary beams (3) are fixedly mounted, an outer side wall of each auxiliary beam (3) is provided with an adjustment cylinder (4), and the adjustment cylinder (4) is slidably connected to the auxiliary beam (3); The inner lower space of the vehicle frame (1) constitutes a container lifting position, and the four corners of the container are all lifting parts; a lifting device is arranged on the vehicle frame (1), and the lifting device comprises two lifting mechanisms, which are respectively arranged at the ends where the width of the upper part of the vehicle frame (1) is located, and the lifting mechanisms lift the two lifting parts at the ends where the width of the container is located; The lifting mechanism comprises a driving component (6) and two flexible steel components, wherein the driving component (6) is transversely arranged on the vehicle frame (1), the middle parts of the two flexible steel components are both wound around the outer wall of the adjusting cylinder (4), and the points where the flexible steel components are wound around the outer wall of the adjusting cylinder (4) are lifting points; one end of the two flexible steel components is respectively perpendicular to two lifting parts at the ends where the width of the container is located, and the ends of the flexible steel components pull the container lifting parts; the other ends of the two flexible steel components are fixedly installed with the power output end of the driving component (6); after the adjusting cylinder (4) is slidably displaced on the auxiliary beam (3), the lifting point of the flexible steel component is laterally offset relative to the vehicle frame (1).

2. A straddle carrier with adjustable lifting points according to claim 1, characterized in that: The frame (1) is provided with a second driving member (9), the output shaft end of the second driving member (9) is hinged to the adjusting cylinder (4), and the second driving member (9) drives the adjusting cylinder (4) to slide and displace on the auxiliary beam (3).

3. The straddle carrier with adjustable lifting points according to claim 1, characterized in that: The lifting device also includes a sling (2), the sling (2) is located at the lifting position, two lifting mechanisms pull and hang the two ends of the sling (2), and four corners of the sling (2) are fixedly installed with slings (14); one end of the flexible steel structure vertically facing the container pulls and hangs the corner of the sling (2).

4. The straddle carrier with adjustable lifting points according to claim 1, characterized in that: The frame (1) comprises two mutually parallel first cross beams (101), two mutually parallel second cross beams (102), and at least four supporting legs (103); the two ends of the two second cross beams (102) are respectively fixedly connected to the two first cross beams (101); and the upper ends of the supporting legs (103) are fixedly connected to the first cross beams (101).

5. The straddle carrier with adjustable lifting points according to claim 4, characterized in that: The driving component (6) comprises a first driving member (601), an articulated seat (602), a guide frame (604), and a weighing sensor (605); the articulated seat (602) and the guide frame (604) are welded to the outer wall of the first crossbeam (101); one end of the cylinder portion of the first driving member (601) is articulated with the articulated seat (602); the other end of the cylinder portion of the first driving member (601) is mounted on the guide frame (604); the output shaft end of the first driving member (601) is fixedly mounted on two flexible steel components; the weighing sensor (605) is arranged at the output shaft end of the first driving member (601), and the detection element of the weighing sensor (605) is located on the two flexible steel components.

6. The straddle carrier with adjustable lifting points according to claim 1, characterized in that: At least two fixed pulleys are fixedly mounted on the outer side wall of the adjusting cylinder (4), and the middle parts of the two flexible steel components are respectively wound in the roller grooves of the two fixed pulleys.

7. The straddle carrier with adjustable lifting points according to claim 6, characterized in that: The flexible steel member is one of a steel wire rope and a chain.

8. The straddle carrier with adjustable lifting points according to claim 2, characterized in that: The second driving member (9) is a hydraulic cylinder or an electric cylinder.

9. The straddle carrier with adjustable lifting points according to claim 5, characterized in that: The first driving member (601) is a hydraulic cylinder.

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