A transfer vehicle

Abstract

The present invention discloses a transfer vehicle, comprising a chassis, a leg mechanism, a first slewing mechanism, a pitching mechanism, a main telescopic arm mechanism, a luffing mechanism and a special hoist; a plurality of the leg mechanisms are installed below the chassis; the first slewing mechanism is installed above the chassis, the pitching mechanism is installed on the first slewing mechanism, the two ends of the main telescopic arm mechanism are respectively rotatably connected with the pitching mechanism and the special hoist; the two ends of the luffing mechanism are respectively rotatably connected with the pitching mechanism and the main telescopic arm mechanism. The present invention can meet different station modes and site conditions for transferring containers at platforms, warehouses, and outdoors, has a wide range of applications, and is economical and practical.

Description

Technical Field

[0001] The present invention relates to the technical field of engineering machinery, and in particular to a transfer vehicle. Background Art

[0002] Currently, double-machine lifting or reach crane is used to lift containers, etc., but double-machine lifting requires two cranes of the same tonnage to work at the same time, which has high economic cost and requires a larger operation site. It has high operating requirements, unstable operation and high safety risks. The reach crane is not maneuverable and cannot be transferred to another site for operation, and the upper load cannot be rotated during operation. It has high requirements for the transfer site and transfer conditions, and is only suitable for port transfer, and cannot be adapted to platform, field transfer and other situations. Summary of the invention

[0003] The purpose of the present invention is to overcome the shortcomings of the prior art and provide a transfer vehicle. The present invention can meet the different station modes and site conditions of transferring containers on platforms, in warehouses, in the field and other places. It has a wide range of applications and is economical and practical.

[0004] In order to achieve the above-mentioned purpose, the present invention provides a transfer vehicle, including a chassis, a leg mechanism, a first rotating mechanism, a pitch mechanism, a main telescopic arm mechanism, a luffing mechanism and a special hoist; a plurality of the leg mechanisms are installed below the chassis; the first rotating mechanism is installed above the chassis, the pitch mechanism is installed on the first rotating mechanism, the two ends of the main telescopic arm mechanism are respectively rotatably connected to the pitch mechanism and the special hoist; the two ends of the luffing mechanism are respectively rotatably connected to the pitch mechanism and the main telescopic arm mechanism.

[0005] Furthermore, the special lifting device includes a fixed arm, a first telescopic arm mechanism, a swing cylinder, a swing support and a second rotating mechanism, both ends of the fixed arm are connected to the first telescopic arm mechanism, one end of the fixed arm is rotatably connected to one end of the swing support, and the other end is rotatably connected to the other end of the swing support through the swing cylinder; the second rotating mechanism is installed on the swing support; the main telescopic arm mechanism is rotatably connected to the second rotating mechanism.

[0006] Furthermore, the special lifting device also includes a second telescopic arm mechanism, and both sides of the cantilever end of the first telescopic arm mechanism are connected to the second telescopic arm mechanism.

[0007] Furthermore, the special lifting device also includes a rotating support, and the second slewing mechanism is rotationally connected to the main telescopic arm mechanism through the rotating support.

[0008] Furthermore, the leg mechanism includes a first movable leg horizontally telescopically connected to the chassis, a second movable leg vertically connected to the first movable leg, and a weight-adjusting cylinder connected to the second movable leg.

[0009] Furthermore, the transfer vehicle also includes a spreader pitch cylinder, and the main telescopic arm mechanism is connected to the special spreader through the spreader pitch cylinder.

[0010] Furthermore, the pitch mechanism includes a turntable base, a pitch cylinder and a pitch turntable, the turntable base is connected to the first rotating mechanism, the turntable base is rotationally connected to the pitch cylinder and the pitch turntable respectively, the pitch cylinder is rotationally connected to the pitch turntable, the pitch turntable is rotationally connected to the main telescopic arm mechanism, and the turntable base, the pitch cylinder and the pitch turntable form a triangular structure.

[0011] Furthermore, the luffing mechanism comprises a luffing cylinder, and two ends of the luffing mechanism are rotatably connected to the pitch mechanism and the main telescopic arm mechanism respectively.

[0012] Furthermore, the chassis adopts a high-mobility chassis.

[0013] Beneficial effects of the present invention:

[0014] 1. The main telescopic arm mechanism of the present invention is rotatably connected to the special spreader and cooperates with the first slewing mechanism to eliminate the intersection angle of the axes of the transfer vehicle and the container when they are in place, so that no matter where the container is within the operating range of the transfer vehicle, the special spreader can be adjusted to coincide with the axis of the container through the rotatable connection between the first slewing mechanism and the main telescopic arm mechanism and the special spreader.

[0015] 2. The transfer vehicle of the present invention is used to realize relative rotation of the transfer vehicle under the action of the first rotating mechanism, thereby realizing the rotating operation. And under the cooperation of the pitch mechanism, the amplitude changing mechanism and the main telescopic arm mechanism, the operating height and the operating range of the special sling are adjusted, thereby effectively improving the operating range, ensuring that the operating center of the special sling coincides with the center of the lifting point such as the container, and ensuring the stability of the lifting operation.

[0016] 3. Under the action of the first telescopic arm mechanism, the special sling of the present invention can adjust the length of the special sling to meet the lifting requirements of containers of different lengths. At the same time, when lifting long rods such as containers, large-span lifting can be achieved, eliminating the shaking and tilting caused by the center of gravity deviation during the lifting operation, which can greatly reduce the swing amount during the rotation operation and ensure the smooth and reliable operation.

[0017] 4. When the special spreader of the present invention forms a certain tilt angle with the container, etc., the tilt angle of the special spreader is adjusted by swinging the oil cylinder to eliminate the horizontal crossing angle when the special spreader and the container are in place, so that the special spreader and the container are in a parallel state, so as to be suitable for tilting working conditions.

[0018] 5. When the axis of the special spreader of the present invention forms a certain angle with the axis of the container, etc., the orientation of the special spreader is adjusted by the second rotating mechanism so that the axis of the special spreader is parallel to the axis of the container, etc., so as to be suitable for cross-operation conditions.

[0019] 6. The special spreader of the present invention can adjust the width of the special spreader under the action of the second telescopic mechanism to meet the lifting requirements of containers of different widths, etc., and further improve the application range of the special spreader.

[0020] 7. After the transfer vehicle of the present invention is in place, the leg mechanism is opened by the first movable leg, and the horizontal extension and retraction of the first movable leg is adjusted to increase the working span and improve the operating stability of the whole machine. After the first movable leg is extended and retracted into place, the heavy vertical cylinder is used to lift and support the ground, so that the chassis is separated from the ground, and the whole machine only touches the ground with the vertical legs, thereby increasing the stable operating load of the whole machine.

[0021] 8. The present invention realizes the switching between the maneuverable low-position state and the operation deployment high-position state of the transfer load through the pitch turntable, so that the whole vehicle can meet the transfer operation height while taking into account the railway transportation and road transportation performance.

[0022] 9. The present invention uses the pitch cylinder of the spreader to adjust the horizontal pitch angle of the special spreader, thereby realizing automatic leveling of the special spreader and ensuring effective and stable lifting of the special spreader.

[0023] 10. The chassis of the present invention adopts a highly maneuverable chassis, has high maneuverability, is adapted to field operation requirements, and can meet the maneuverability requirements during transfer operations.

[0024] 11. The transfer vehicle of the present invention can meet the different positioning methods and site conditions for transferring containers at platforms, warehouses, and outdoors, etc. It has a wide range of applications and is economical and practical. The transfer vehicle and the transferred vehicle (truck, train, flatbed, etc.) can adopt a variety of positioning methods such as side by side, side by side, and front and back in a triangular shape to achieve full coverage of the operating range. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention 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 described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 A perspective view of a vehicle according to the present invention.

[0027] Figure 2 It is a three-dimensional diagram of the special lifting device of the present invention.

[0028] The above reference numerals:

[0029] 1 chassis, 2 outrigger mechanism, 20 first movable outrigger, 21 second movable outrigger, 22 vertical cylinder, 3 first slewing mechanism, 4 pitch mechanism, 40 turntable base, 41 pitch cylinder, 42 pitch turntable, 5 main telescopic arm mechanism, 6 luffing mechanism, 7 special hoist, 8 hoist pitch cylinder, 70 fixed arm, 71 first telescopic arm mechanism, 72 swing support, 73 swing cylinder, 74 second slewing mechanism, 75 rotating support, 76 second telescopic arm mechanism. DETAILED DESCRIPTION

[0030] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is described in detail below in conjunction with the accompanying drawings. The description in this part is only exemplary and explanatory and should not have any limiting effect on the protection scope of the present invention.

[0031] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0032] It should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, or are the orientation or positional relationship in which the invented product is usually placed when in use. They 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 limiting the present invention. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0033] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0034] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" 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 elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0035] like Figure 1 and 2 As shown, the present embodiment provides a transfer vehicle, comprising a chassis 1, a leg mechanism 2, a first slewing mechanism 3, a pitching mechanism 4, a main telescopic arm mechanism 5, a luffing mechanism 6 and a special hoist 7; a plurality of the leg mechanisms 2 are installed below the chassis 1; the first slewing mechanism 3 is installed above the chassis 1, the pitching mechanism 4 is installed on the first slewing mechanism 3, the two ends of the main telescopic arm mechanism 5 are rotatably connected to the pitching mechanism 4 and the special hoist 7 respectively; the two ends of the luffing mechanism 6 are rotatably connected to the pitching mechanism 4 and the main telescopic arm mechanism 5 respectively.

[0036] In this embodiment, the main telescopic arm mechanism 5 is rotatably connected to the special sling 7, and cooperates with the first rotating mechanism 3 to eliminate the intersection angle of the axes when the transfer vehicle and the container are in place, so that no matter where the container is within the operating range of the transfer vehicle, the special sling 7 can be adjusted to coincide with the axis of the container through the first rotating mechanism 74 and the rotational connection between the main telescopic arm mechanism 5 and the special sling 7.

[0037] In this embodiment, the transfer vehicle is acted upon by the first slewing mechanism 3 to realize relative rotation of the load on the transfer vehicle and realize slewing operation. Moreover, with the cooperation of the pitch mechanism 4, the amplitude varying mechanism 6 and the main telescopic arm mechanism 5, the operating height and the operating range of the special sling 7 are adjusted, thereby effectively improving the operating range, ensuring that the operating center of the special sling 7 coincides with the center of the lifting point such as the container, and ensuring the stability of the lifting operation.

[0038] In this embodiment, the main telescopic arm mechanism 5 adopts the structure of existing multi-section telescopic arms fitting together, and realizes telescopic extension through a telescopic cylinder. This is an existing conventional technology, so it will not be described in detail.

[0039] The present embodiment is further preferred in that the special lifting device 7 includes a fixed arm 70, a first telescopic arm mechanism 71, a swing cylinder 73, a swing support 72 and a second rotating mechanism 74; both ends of the fixed arm 70 are connected to the first telescopic arm mechanism 71; one end of the fixed arm 70 is rotatably connected to one end of the swing support 72, and the other end is rotatably connected to the other end of the swing support 72 through the swing cylinder 73; the second rotating mechanism 74 is installed on the swing support 72; and the main telescopic arm mechanism 5 is rotatably connected to the second rotating mechanism 74.

[0040] Preferably, in this embodiment, the special lifting device 7 further includes a rotating support 75 , and the second slewing mechanism 74 is rotatably connected to the main telescopic arm mechanism 5 via the rotating support 75 .

[0041] The special sling 7 of this embodiment can adjust the length of the special sling 7 under the action of the first telescopic arm mechanism 71 to meet the lifting requirements of containers of different lengths. At the same time, when lifting long rods such as containers, large-span lifting can be achieved, eliminating the shaking and tilting caused by the center of gravity deviation during the lifting operation, which can greatly reduce the swing amount during the rotation operation and ensure the smooth and reliable operation.

[0042] When the special sling 7 of this embodiment forms a certain tilt angle with the container, etc., the tilt angle of the special sling 7 is adjusted by swinging the oil cylinder 73 to eliminate the horizontal crossing angle between the special sling 7 and the container, etc. when they are in place, so that the special sling 7 and the container, etc. are in a parallel state, so that they can be suitable for inclined working conditions.

[0043] When the axis of the special sling 7 in this embodiment forms a certain angle with the axis of the container, etc., the orientation of the special sling 7 is adjusted by the first rotating mechanism 74 so that the axis of the special sling 7 is parallel to the axis of the container, etc., so as to be suitable for cross-operation conditions.

[0044] In this embodiment, the first swivel mechanism 3 and the second swivel mechanism 74 cooperate to eliminate the intersection angle of the axes of the transfer vehicle and the container when they are in place, so that no matter where the container is within the operating range of the transfer vehicle, the special sling can be adjusted to coincide with the axis of the container.

[0045] In this embodiment, the first rotary mechanism 74 and the second rotary mechanism 3 adopt the structure of the existing hydraulic motor acceleration and reduction machine, which is the existing conventional technology and will not be described in detail.

[0046] In this embodiment, the first telescopic arm mechanism 71 adopts the structure of existing multi-section telescopic arms fitting together, and realizes telescopic movement through a telescopic oil cylinder. This is an existing conventional technology, so it will not be described in detail.

[0047] In this embodiment, the special sling 7 further preferably includes a second telescopic arm mechanism 76, and both sides of the cantilever end of the first telescopic arm mechanism 71 are connected to the second telescopic arm mechanism 76. Under the action of the second telescopic mechanism 76, the width of the special sling 7 can be adjusted to meet the lifting requirements of containers of different widths, etc., and further improve the application range of the special sling 7. In this embodiment, the second telescopic arm mechanism 76 adopts the structure of the existing multi-section telescopic arms fitting each other, and realizes telescopic extension through the telescopic cylinder. This is an existing conventional technology, so it will not be described in detail.

[0048] In this embodiment, the leg mechanism 2 further preferably comprises a first movable leg 20 horizontally telescopically connected to the chassis 1, a second movable leg 21 vertically connected to the first movable leg 20, and a weighted vertical oil cylinder 22 connected to the second movable leg 21. When the transfer vehicle is in place, the leg mechanism is opened by the first movable leg 20, and the horizontal telescopic adjustment of the first movable leg 20 is performed to increase the working span and improve the working stability of the whole machine. After the first movable leg 20 is telescopically in place, the weighted vertical oil cylinder 22 is used to lift and support the ground, so that the chassis 1 is separated from the ground, and the whole machine only touches the ground with the vertical leg 22, thereby increasing the working stability load of the whole machine.

[0049] In this embodiment, the transfer vehicle further preferably includes a spreader pitch cylinder 8, and the main telescopic arm mechanism 5 is connected to the special spreader 7 through the spreader pitch cylinder 8. Specifically, the spreader pitch cylinder 5 is connected to the second rotary mechanism 74, and the spreader pitch cylinder 8 is rotatably connected to the rotating support 75. The spreader pitch cylinder 8 is used to adjust the horizontal pitch angle of the spreader, thereby realizing automatic leveling of the special spreader 7, and ensuring effective and stable lifting of the special spreader 7.

[0050] In this embodiment, the pitch mechanism 4 includes a turntable base 40, a pitch cylinder 41 and a pitch turntable 42. The turntable base 40 is connected to the first slewing mechanism 3. The turntable base 40 is rotatably connected to the pitch cylinder 41 and the pitch turntable 42 respectively. The pitch cylinder 41 is rotatably connected to the pitch turntable 42. The pitch turntable 42 is rotatably connected to the main telescopic arm mechanism 5. The turntable base 40, the pitch cylinder 41 and the pitch turntable 42 form a triangular structure. The pitch turntable 42 is used to switch between the maneuverable low position state and the operation deployment high position state of the transfer load, so that the whole vehicle can meet the transfer operation height while taking into account the railway transportation and road transportation performance.

[0051] Preferably, in this embodiment, the luffing mechanism 6 comprises a luffing cylinder, and two ends of the luffing mechanism are rotatably connected to the pitch mechanism 4 and the main telescopic arm mechanism 5 respectively.

[0052] In the present embodiment, the chassis 1 preferably adopts an existing high-mobility chassis, has high mobility, is adapted to field operation requirements, and can meet the mobility requirements during transfer operations.

[0053] The transfer vehicle in this embodiment can meet the different positioning methods and site conditions for transferring containers at platforms, warehouses, the field and other sites, thereby improving the application scope of the transfer vehicle. The transfer vehicle and the transferred vehicle (truck, train, flatbed, etc.) can adopt various positioning methods such as parallel on the same side, parallel on different sides, and front and back in a triangular shape, thereby achieving full coverage of the operating range and having a wide range of applications.

[0054] It should be noted that, in this article, the terms "comprises", "includes" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or apparatus that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or apparatus.

[0055] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention. These changes and improvements fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A transfer vehicle, characterized in that: It includes a chassis, a leg mechanism, a first slewing mechanism, a pitching mechanism, a main telescopic arm mechanism, a luffing mechanism and a special hoist; a plurality of the leg mechanisms are installed below the chassis; the first slewing mechanism is installed above the chassis, the pitching mechanism is installed on the first slewing mechanism, the two ends of the main telescopic arm mechanism are respectively rotatably connected to the pitching mechanism and the special hoist; the two ends of the luffing mechanism are respectively rotatably connected to the pitching mechanism and the main telescopic arm mechanism; The special hoist comprises a fixed arm, a first telescopic arm mechanism, a swing oil cylinder, a swing support and a second slewing mechanism, both ends of the fixed arm are connected to the first telescopic arm mechanism, one end of the fixed arm is rotatably connected to one end of the swing support, and the other end is rotatably connected to the other end of the swing support through the swing oil cylinder; the second slewing mechanism is installed on the swing support; the main telescopic arm mechanism is rotatably connected to the second slewing mechanism; The pitch mechanism includes a turntable base, a pitch cylinder and a pitch turntable. The turntable base is connected to the first rotating mechanism. The turntable base is rotatably connected to the pitch cylinder and the pitch turntable respectively. The pitch cylinder is rotatably connected to the pitch turntable. The pitch turntable is rotatably connected to the main telescopic arm mechanism. The turntable base, the pitch cylinder and the pitch turntable form a triangular structure.

2. A transfer vehicle according to claim 1, characterized in that: The special lifting device also includes a second telescopic arm mechanism, and both sides of the cantilever end of the first telescopic arm mechanism are connected to the second telescopic arm mechanism.

3. A transfer vehicle according to claim 1, characterized in that: The special lifting device also includes a rotating support, and the second slewing mechanism is rotatably connected to the main telescopic arm mechanism through the rotating support.

4. A transfer vehicle according to claim 1, characterized in that: The leg mechanism comprises a first movable leg horizontally telescopically connected to the chassis, a second movable leg vertically connected to the first movable leg, and a weight-adjusting oil cylinder connected to the second movable leg.

5. The transfer vehicle according to claim 1, characterized in that: The transfer vehicle further comprises a spreader pitch cylinder, and the main telescopic arm mechanism is connected to the special spreader via the spreader pitch cylinder.

6. The transfer vehicle according to claim 1, characterized in that: The luffing mechanism comprises a luffing oil cylinder, and two ends of the luffing mechanism are rotatably connected to the pitch mechanism and the main telescopic arm mechanism respectively.

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