Container inclined lifting appliance

Abstract

The invention provides a container tilting sling. The container tilting sling comprises a main beam, a tilting mechanism and a box pressing mechanism. The main beam is used for connecting containers. The tilting mechanism comprises a rotating device and a tilting driving device which are connected with each other; the rotary device can drive the inclined driving device to rotate; the inclination driving device is arranged on the main beam in a sliding mode and comprises two sets of oil cylinders used for driving the main beam to form an inclination state. The two groups of oil cylinders are opposite in stroke direction during working and form resultant moment, so that the two groups of oil cylinders can respectively provide pulling force and pushing force, and meanwhile, the pulling force is mainly used. By arranging the two sets of oil cylinders with opposite stroke directions, the stress state of the tilting hinge point of the lifting appliance can be improved, and the practicability and durability of the whole structure are improved.

Description

Technical Field

[0001] The present invention relates to a container tilting spreader, belonging to the technical field of container spreaders. Background Art

[0002] In order to improve the material handling efficiency of freight containers, according to different types of containers, there are various corresponding container tipping spreaders. For open-top containers, a tipping spreader can be used to unload the materials by tipping the container forward. For conventional (non-open-side-opening) containers, a container tilting spreader has emerged, which can unload the materials of bulk containers to the side. This container tilting spreader is used in combination with a container reach stacker, enabling mobile operation, flexible and efficient.

[0003] Please refer to Figure 6 and Figure 7 , in the existing disclosed tilting spreaders, two tilting cylinders are used on the same side of the tilting seat rotation hinge point. During the process of the container from the horizontal position to the completion of tilting unloading and then from the tilted position to the horizontal position, the cylinders are respectively under pressure and tension. However, hydraulic cylinders are not suitable for being under pressure, and the force on the tilting cylinders is unreasonable. When under pressure, the cylinders are prone to buckling, resulting in poor reliability of the overall structure. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies in the prior art and provide a container tilting spreader, aiming to improve the rationality of the force on the cylinders and thus enhance the reliability of the overall structure.

[0005] To achieve the above object, the present invention is implemented by the following technical solutions: In a first aspect, the present invention provides a container tilting spreader, including: A main beam for connecting the container; A tilting mechanism including a slewing device and a tilting drive device connected to each other; the slewing device can drive the tilting drive device to rotate; the tilting drive device is slidably arranged on the main beam; The tilting drive device includes at least two groups of cylinders for driving the main beam to form a tilted state; the at least two groups of cylinders have opposite stroke directions during operation and form a resultant moment.

[0006] Further, the tilting drive device further includes: A tilting seat for connecting to the main beam, the main beam is provided with a slide rail extending along the length direction, and the tilting seat is slidably clamped to the slide rail; A lower turntable hinged to the tilting seat; Two groups of tilting cylinders, respectively located on both sides of the lower turntable; the two ends of the tilting cylinder are respectively hinged to the lower turntable and the tilting seat.

[0007] Further, the slewing device includes: A slewing bearing, whose outer ring is installed on the top of the lower turntable; An upper turntable, which is connected to the inner ring of the slewing bearing; A slewing drive, which is in transmission connection with the slewing bearing and is used to drive the inner and outer rings of the slewing bearing to rotate relative to each other.

[0008] Further, each group of tilting cylinders includes two tilting cylinders; the four tilting cylinders are respectively located at the four corners of the lower turntable.

[0009] Further, the main beam is provided with a side shift cylinder; both ends of the side shift cylinder are respectively connected to the main beam and the lower turntable, and are used to drive the lower turntable to slide along the slide rail.

[0010] Further, side shift cylinders are arranged on both sides of the main beam.

[0011] Further, slide rails are arranged on both sides of the main beam; Two sliders corresponding to the two slide rails are arranged at the bottom of the tilting seat.

[0012] Further, the lower turntable is provided with two relatively arranged turntable plates; The two turntable plates are respectively hinged to both sides of the tilting seat.

[0013] Further, the container tilting spreader further includes a container pressing mechanism, which is arranged on the main beam and is used to block the container door in the container pressing state.

[0014] Further, the container pressing mechanism includes: A connecting rod device, which is hinged to one end of the main beam; A container pressing cylinder, which is arranged on the main beam and one end of which is connected to the connecting rod device, and is used to drive one end of the connecting rod device to rotate around the hinge point; in the container pressing state, the container pressing cylinder drives one end of the connecting rod device to move towards the container door to block the container door.

[0015] Compared with the prior art, the beneficial effects achieved by the present invention: The present invention provides a container tilting spreader. By arranging a tilting mechanism including a slewing device and a tilting drive device on the main beam, the tilting drive device is slidably arranged on the main beam. The tilting drive device includes at least two groups of cylinders for driving the main beam to form a tilted state; the two groups of cylinders have opposite stroke directions during operation and form a resultant moment, so that the two groups of cylinders can respectively provide a pulling force and a pushing force, and mainly with the pulling force, which can improve the force state of the tilting hinge point of the spreader and improve the practicability and durability of the structure.

[0016] A container tilting spreader of the present invention is provided with a container pressing mechanism on the main beam. The container pressing mechanism can be used to block the container door in the container pressing state, which can avoid accidental injuries when manually opening the container door. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is a schematic structural view of the main beam of a container spreader in the prior art in a horizontal state; Figure 2 is a schematic structural view of the main beam of a container spreader in the prior art in an inclined state; Figure 3 is a schematic structural view of the container tilting spreader provided by an embodiment of the present invention; Figure 4 is a schematic view of the container pressing state of the container pressing mechanism of the container tilting spreader provided by an embodiment of the present invention; Figure 5 is a schematic view of the opening state of the container pressing mechanism of the container tilting spreader provided by an embodiment of the present invention; Figure 6 is a schematic view of the inclined operation of the container tilting spreader provided by an embodiment of the present invention; Figure 7 is a schematic structural view of the container tilting spreader installed on the whole machine provided by an embodiment of the present invention; In the figure: 1, main beam; 11, side shift oil cylinder; 2, tilting mechanism, 21, tilting seat, 211, tilting hinge point; 22, lower turntable; 23, left tilting oil cylinder; 24, right tilting oil cylinder; 25, upper turntable; 26, slewing bearing; 27, slewing drive; 3, container pressing mechanism; 31, connecting rod device. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0018] The present invention will be further described below with reference to the accompanying drawings. The following embodiments are only used to more clearly illustrate the technical solutions of the present invention, and cannot be used to limit the protection scope of the present invention.

[0019] In the description of the present invention, it should be understood that the orientation or positional relationships indicated by the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. are based on the orientation or positional relationships shown in the drawings. These are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the present invention, unless otherwise specified, the meaning of "a plurality" is two or more.

[0020] In the description of the present invention, it should be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected", "coupled" 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 directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific circumstances. Embodiment

[0021] Please refer to Figure 1 , this embodiment introduces a container tilting spreader, which includes a main beam 1, a tilting mechanism 2 and a container pressing mechanism 3.

[0022] The main beam 1 is used to connect the container. The tilting mechanism 2 includes a slewing device and a tilting driving device connected to each other; the slewing device can drive the tilting driving device to rotate; the tilting driving device is slidably arranged on the main beam 1 along the length direction of the main beam 1, and includes two sets of oil cylinders for driving the main beam 1 to form a tilted state; the two sets of oil cylinders have opposite stroke directions during operation and form a resultant torque. The container pressing mechanism 3 is arranged at the end of the main beam 1 and is used to block the container door in the container pressing state.

[0023] In the above solution, as Figure 4 shown, the two sets of oil cylinders can respectively provide tensile force and thrust force, mainly with the tensile force, so that the main beam 1 is in a tilted state, and can improve the stress state of the tilting hinge point 211 of the spreader, and improve the practicability and durability of the overall structure.

[0024] Specifically, in this embodiment, the tilting drive device includes a tilting seat 21, a lower turntable 22 and two sets of tilting cylinders. The tilting seat 21 is used to connect with the main beam 1. The main beam 1 is provided with a slide rail extending along the length direction, and the tilting seat 21 can be slidably clamped on the slide rail; the lower turntable 22 is hinged to the tilting seat 21; the two sets of tilting cylinders are respectively located on the left and right sides of the lower turntable 22; the two ends of the tilting cylinders are respectively hinged to the lower turntable 22 and the tilting seat 21. The lower turntable 22 forms a tilting hinge 211 on the tilting seat 21, and the main beam 1 can swing around the tilting hinge 211, so as to form a tilted or horizontal state.

[0025] Furthermore, each group of tilt cylinders includes two tilt cylinders. The two groups of tilt cylinders are two left tilt cylinders 23 and two right tilt cylinders 24 . The four tilt cylinders are respectively located at the four corners of the lower turntable 22 .

[0026] In addition, the slewing device includes a slewing bearing 26, an upper turntable 25 and a slewing driver 27. The outer ring of the slewing bearing 26 is installed on the top of the lower turntable 22; the upper turntable 25 is connected to the inner ring of the slewing bearing 26; the slewing driver 27 is connected to the slewing bearing 26 in a transmission connection, and is used to drive the inner and outer rings of the slewing bearing 26 to rotate relative to each other, so that the lower turntable 22 and the main beam 1 can be driven to rotate through the slewing bearing 26, thereby adjusting the direction of the container connected to the main beam 1.

[0027] In order to control the sliding state of the tilting device on the main beam 1, in this embodiment, a side shift oil cylinder 11 is arranged on the main beam; the two ends of the side shift oil cylinder 11 are respectively connected to the main beam 1 and the lower tilting seat 22, and are used to drive the tilting seat 21 to slide along the slide rail. The operator can adjust the sliding distance of the tilting device on the main beam 1 by controlling the stroke of the side shift oil cylinder 11.

[0028] Furthermore, a side shift cylinder 11 is provided on both the front and rear sides of the main beam 1, so that the main beam 1 can be shifted sideways more smoothly and the main beam 1 can be better stressed when tilted. When one side shift cylinder 11 loses force unexpectedly, the other side shift cylinder 11 can still maintain the position of the main beam 1, thereby increasing safety redundancy.

[0029] Exemplarily, both sides of the main beam 1 are provided with slide rails, and the bottom of the tilting seat 21 is provided with two sliders corresponding to the two slide rails respectively. The tilting seat 21 can slide along the slide rails through the sliders.

[0030] Similarly, in this embodiment, the lower turntable 22 is provided with two turntable plates arranged opposite to each other; the two turntable plates are respectively hinged to the two sides of the tilting seat 21, and the two turntable plates and the tilting seat 21 form a tilting hinge 211. The two turntable plates can bear force together, and the structure is stable.

[0031] See also Figure 1, the container pressing mechanism 3 includes a connecting rod device 31 and a pressing cylinder 32. The connecting rod device 31 and the pressing cylinder 32 form a four-bar linkage mechanism. The connecting rod device 31 is hinged to one end of the main beam 1; the pressing cylinder 32 is arranged on the main beam 31 and one end is connected to the connecting rod device 31 and is used to drive one end of the connecting rod device 31 to rotate around the hinge point; in the container pressing state, the pressing cylinder 32 extends, driving one end of the connecting rod device 31 to move towards the container door to block the door. Please refer to Figure 2 and Figure 3 , which respectively represent the container pressing state and the opening state of the connecting rod device 31. In the container pressing state, the container side door is blocked by the container pressing mechanism 3 and cannot be freely opened; when the container pressing mechanism 3 is opened, the pressing cylinder 32 retracts, and the container pressing mechanism 3 loses the block on the container side door, and the container side door can be freely opened. The operation of the pressing cylinder 32 can be controlled by a button in the driver's cab. Embodiment

[0032] As Figure 5 shown, this embodiment provides a container hoisting machine, including the container tilting spreader provided in the above Embodiment 1.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present disclosure rather than limit the scope of its protection. Although the present disclosure has been described in detail with reference to the above embodiments, those of ordinary skill in the art should understand that: after reading the present disclosure, those skilled in the art can still make various changes, modifications or equivalent replacements to the specific implementation manners of the invention, but these changes, modifications or equivalent replacements are all within the scope of the protection of the claims pending for disclosure.

Claims

1. A container tilting spreader, characterized in that, Comprising: A main beam for connecting a container; A tilting mechanism including a slewing device and a tilting drive device connected to each other; the slewing device is capable of driving the tilting drive device to rotate; the tilting drive device is slidably disposed on the main beam; The tilting drive device includes at least two sets of oil cylinders for driving the main beam to form a tilted state; the at least two sets of oil cylinders have opposite stroke directions during operation and form a resultant moment.

2. The container tilting spreader according to claim 1, wherein, The tilting drive device further includes: A tilting seat for connecting to the main beam, the main beam is provided with a slide rail extending along the length direction, and the tilting seat is slidably clamped to the slide rail; A lower turntable hinged to the tilting seat; Two sets of tilting oil cylinders located on both sides of the lower turntable respectively; both ends of the tilting oil cylinders are respectively hinged to the lower turntable and the tilting seat.

3. The container tilting spreader according to claim 2, wherein, The slewing device includes: A slewing bearing, the outer ring of which is installed on the top of the lower turntable; An upper turntable connected to the inner ring of the slewing bearing; A slewing drive connected to the slewing bearing in a transmission manner and used for driving the inner ring and the outer ring of the slewing bearing to rotate relative to each other.

4. The container tilting spreader according to claim 2, wherein Each set of tilting oil cylinders includes two tilting oil cylinders; the four tilting oil cylinders are respectively located at the four corners of the lower turntable.

5. The container tilting spreader according to claim 2, characterized in that, The main beam is provided with a side shift oil cylinder; both ends of the side shift oil cylinder are respectively connected to the main beam and the lower turntable and used for driving the lower turntable to slide along the slide rail.

6. The container tilting spreader according to claim 5, wherein, Side shift oil cylinders are provided on both sides of the main beam.

7. The container tilting spreader according to claim 2, characterized in that, Slide rails are provided on both sides of the main beam; Two sliders corresponding to the two slide rails are provided at the bottom of the tilting seat.

8. The container tilting spreader according to claim 2, characterized in that, The lower turntable is provided with two oppositely arranged turntable plates; The two turntable plates are respectively hinged to both sides of the tilting seat.

9. The container tilting spreader according to claim 1, wherein, The container tilting spreader further includes a box pressing mechanism disposed on the main beam and used for blocking the container door in the box pressing state.

10. The container tilting spreader according to claim 9, characterized in that, The box pressing mechanism includes: A connecting rod device hinged to one end of the main beam; A box pressing oil cylinder disposed on the main beam and having one end connected to the connecting rod device and used for driving one end of the connecting rod device to rotate around the hinge point; in the box pressing state, the box pressing oil cylinder drives one end of the connecting rod device to move towards the container door to block the door.

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