Complete machine shifting device of mast crane

Abstract

The utility model discloses a mast type crane complete machine shifting device which comprises installation positions distributed on a crane base, each installation position is provided with an L-shaped beam set, each L-shaped beam set is composed of one or more L-shaped beams, each L-shaped beam comprises a horizontal section and a vertical section, the vertical section is connected with the crane base, and the horizontal section is connected with the horizontal section. And the horizontal section extends out of the crane base. According to the utility model, the L-shaped beam group is arranged on the base of the mast crane, and the L-shaped beam group is used as a contact surface instead of the complete machine base composite beam. In the whole shifting operation process, large synchronous jacking equipment does not need to be additionally used, all jacking and walking operations can be completed only by using the module vehicle, the used time is short, the safety is high, and the carrying process of the jacking equipment is reduced. In the shifting process, the gravity center of the whole machine is low, the width of a supporting point is increased, the shifting operation of the whole machine is simpler and safer, and consumed time is shorter.

Description

Technical Field

[0001] The utility model relates to a mast crane, in particular to a whole-machine shifting device for a mast crane. Background Art

[0002] With the rapid development of the wind power industry, the weight of offshore wind turbine main engines continues to increase, and the demand for wind turbine components to be shipped to sea has increased. Large mast cranes have obvious cost advantages over crawler cranes and marine cranes. Large mast cranes are an economical choice for loading and unloading ships at ports, but fixed mast cranes have a relatively short service life and occupy port berths for a long time, so when they are not used for a long time, the entire machine needs to be moved to other locations to meet the requirements of comprehensive port operations.

[0003] The deadweight of a mast crane (including the weight for adjusting the center of gravity) is about 1,000 tons. The existing whole-machine relocation technology first requires the use of large synchronous lifting equipment to lift the whole machine to a height of 1.5-2 meters. Then the module car drives to the bottom of the whole machine, and the lifting equipment falls, using the longitudinal main beam of the mast crane as the support surface of the whole machine and falling on the module car. When the module car moves to the designated location, the whole machine needs to be lowered to the ground, which is the reverse process of the previous lifting process and will not be described in detail.

[0004] The disadvantages of this method are that it requires large special synchronous lifting equipment, the lifting height of the whole machine is large (1.5-2m), it takes a long time, the risk is high, the width of the whole machine support point is small (about 6m) during the walking operation, and the center of gravity is high. Considering the strong wind and gusts in coastal ports, this technology has many risk points. Utility Model Content

[0005] In order to solve the problems in the prior art, the utility model provides a whole-machine shifting device for a mast-type crane.

[0006] In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0007] A mast crane whole machine shifting device includes installation positions distributed on the crane base, each installation position is provided with an L-shaped beam group, the L-shaped beam group is composed of one or more L-shaped beams, the L-shaped beam includes a horizontal section and a vertical section, wherein the vertical section is connected to the crane base, and the horizontal section extends out of the crane base.

[0008] Furthermore, each L-shaped beam in the L-shaped beam group is located at the same height.

[0009] Furthermore, the installation positions are distributed at both ends of the front and rear bottom beams in the crane base.

[0010] Furthermore, the lower end of the vertical section of the L-shaped beam is connected to the crane base via a lower connecting pin, the upper end of the vertical section is connected to the crane base via a latch mechanism, and a tightening surface is provided between the vertical section and the crane base.

[0011] Furthermore, the latch mechanism includes a base ear plate, an L-shaped beam ear plate and an upper connecting pin shaft, the base ear plate is fixedly connected to the crane base, the L-shaped beam ear plate is fixedly connected to the L-shaped beam, the base ear plate is provided with a base interface, the L-shaped beam ear plate is provided with an L-shaped beam interface, and the upper connecting pin shaft is inserted in the corresponding base interface and L-shaped beam interface.

[0012] Furthermore, the L-shaped beam ear plates are provided with two and are respectively located above and below the base ear plates; the base interface is an oblong hole, and the L-shaped beam interface is a circular hole.

[0013] Furthermore, the vertical section of the L-shaped beam is connected to the crane base via a flange.

[0014] Furthermore, the L-shaped beam group is composed of a plurality of L-shaped beams, and adjacent L-shaped beams are connected by one or more groups of connecting rods.

[0015] Furthermore, the connecting rod is composed of a left-handed rod, an intermediate sleeve and a right-handed rod. The left-handed rod is provided with a left-handed thread, and the right-handed rod is provided with a right-handed thread. Both the left-handed rod and the right-handed rod are threadedly connected to the corresponding ends of the intermediate sleeve.

[0016] Furthermore, both ends of the connecting rod are connected to the L-shaped beam via a pin or a flange.

[0017] Beneficial effects of the utility model:

[0018] The utility model installs an L-shaped beam group on the base of the mast crane, and the L-shaped beam group replaces the above-mentioned combined beam of the whole machine base as the contact surface, thereby increasing the support width and making the walking operation more stable. Furthermore, a connecting rod can be installed between two adjacent L-shaped beams to improve its lateral stability.

[0019] After the L-beam group is installed, the whole machine does not need to be lifted separately. The module car can drive to the bottom of the L-beam, and then the module car is lifted up and contacts with the L-beam, so that the mast crane is lifted up as a whole and stops after it is 100-200mm off the ground. Then the module car can start the walking operation. After driving to the designated location, the module car drops 100-200mm. When the base of the whole machine contacts the ground, the mast crane whole machine shifting operation is completed.

[0020] During the entire relocation process, there is no need to use additional large synchronous lifting equipment. Only the modular vehicle can complete all the lifting and walking operations, and the lifting height is only 100-200mm, which is much lower than the 1.5-2m of the existing technology. It takes less time and is safer. It also reduces the handling process of the lifting equipment itself. During the relocation process, the center of gravity of the whole machine is 1.4-1.8m lower than the existing technology, and the width of the support point is increased, so the relocation operation of the whole machine is simpler, safer and takes less time. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is an overall schematic diagram of the utility model;

[0022] Figure 2 yes Figure 1 The main view;

[0023] Figure 3 It is the connection diagram between the L-beam and the bottom beam (viewed from top);

[0024] Figure 4 yes Figure 3 A partial enlarged view of the middle A;

[0025] Figure 5 This is the connection diagram between the L-beam and the base (viewed from the left)

[0026] Figure 6 yes Figure 5 A partial enlarged view of point B in the middle.

[0027] In the figure: 1-L-shaped beam, 2-module car, 3-crane base, 4-left-hand rod, 5-middle sleeve, 6-right-hand rod, 7-connecting rod pin, 8-base ear plate, 9-upper connecting pin, 10-L-shaped beam ear plate, 11-lower connecting pin, 12-tightening surface, 13-bottom beam.

[0028] The drawings are only used for illustrative purposes and should not be construed as limitations on this patent. In order to better illustrate this embodiment, some parts of the drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. For those skilled in the art, it is understandable that some well-known structures and their descriptions in the drawings may be omitted. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0030] Embodiment 1:

[0031] like Figures 1 to 6As shown, this embodiment provides a whole-machine displacement device for a mast crane, including installation positions distributed on both ends of the front and rear bottom beams in the crane base 3, each installation position is provided with an L-shaped beam group, and the L-shaped beam group is composed of one or more L-shaped beams 1. The number of L-shaped beams 1 is determined by the weight of the whole machine and the form of the base. In this embodiment, the L-shaped beam group is composed of two L-shaped beams 1, and the two L-shaped beams 1 in the L-shaped beam group are located at the same height.

[0032] The structure of a single L-shaped beam 1 is as follows: the L-shaped beam 1 includes a horizontal section and a vertical section, wherein the vertical section is connected to the bottom beam 13 , and the horizontal section extends outward from the crane base 3 .

[0033] In this embodiment, the vertical section of the L-shaped beam 1 is connected to the bottom beam as follows: the lower end of the vertical section of the L-shaped beam 1 is connected to the bottom beam 13 via a lower connecting pin 11, the upper end of the vertical section is connected to the bottom beam 13 via a latch mechanism, and a tightening surface 12 is also provided between the vertical section and the bottom beam 13.

[0034] Specifically, the latch mechanism includes a base ear plate 8, an L-shaped beam ear plate 10 and an upper connecting pin 9. The base ear plate 8 is fixedly connected to the bottom beam 13, the L-shaped beam ear plate 10 is fixedly connected to the L-shaped beam 1, and two L-shaped beam ear plates 10 are provided and are respectively located above and below the base ear plate 8. The base ear plate 8 is provided with a base interface, which is an oblong hole. The L-shaped beam ear plate 10 is provided with an L-shaped beam interface, which is a round hole. The upper connecting pin 9 is inserted into the corresponding base interface and L-shaped beam interface, so that the upper connecting pin 9 can move freely in the oblong hole of the base interface with a certain degree of freedom.

[0035] In this embodiment, two sets of connecting rods are installed between two adjacent L-shaped beams to improve their lateral stability. The two ends of the connecting rod are connected to the L-shaped beam 1 through the connecting rod pin 7, and the connection method is not limited to the pin connection, and other forms such as flange connection can be adopted.

[0036] The structure of the connecting rod is as follows: the connecting rod is composed of a left-handed rod 4, an intermediate sleeve 5 and a right-handed rod 6. The left-handed rod 4 is provided with a left-handed thread, and the right-handed rod 6 is provided with a right-handed thread. The left-handed rod 4 and the right-handed rod 6 are both threadedly connected to the corresponding ends of the intermediate sleeve 5. In this way, by screwing the intermediate sleeve 5, the length of the connecting rod can be quickly adjusted.

[0037] The working principle of this embodiment is as follows:

[0038] The utility model installs an L-shaped beam 1 and a connecting rod at the ends of the front and rear bottom beams of the crane. The L-shaped beam 1 replaces the above-mentioned combined beam of the whole machine base as the contact surface, increases the support width (about 14 meters), and is more stable during walking operation; the length of the connecting rod can be quickly adjusted and is installed between two adjacent L-shaped beams 1 to improve its lateral stability.

[0039] After the L-shaped beam 1 and the connecting rod are installed, the whole machine does not need to be lifted separately, and the module car 2 can travel to the bottom of the L-shaped beam, and then the module car 2 is lifted and contacts with the L-shaped beam 1, so that the mast crane is lifted up as a whole and stops after it is 100-200mm off the ground. Then the module car 2 can carry out the walking operation. After driving to the designated location, the module car 2 drops 100-200mm, and when the base of the whole machine contacts the ground, the whole mast crane shifting operation is completed.

[0040] During the entire shifting operation, there is no need to use additional large synchronous lifting equipment. Only the modular vehicle 2 can complete all the lifting and walking operations, and the lifting height is only 100-200mm, which is much lower than the 1.5-2m of the prior art. It takes less time and is safer. It also reduces the handling process of the lifting equipment itself. During the shifting process, the center of gravity of the whole machine is 1.4-1.8m lower than the prior art, and the width of the support point is more than twice that of the prior art, so the whole machine shifting operation is simpler, safer and takes less time.

[0041] Embodiment 2:

[0042] The difference between this embodiment and the first embodiment is that the vertical section of the L-shaped beam 1 is connected to the bottom beam in a different manner. In this embodiment, the vertical section of the L-shaped beam 1 is fixedly connected to the bottom beam 13 via a flange.

[0043] The above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that the present invention can still be modified or replaced by equivalents. Any modification or partial replacement that does not depart from the spirit and scope of the present invention should be included in the scope of the claims of the present invention.

[0044] If the words "first", "second" and so on are used in this document to limit components, those skilled in the art should know that the use of "first" and "second" is only for the convenience of describing the utility model and simplifying the description. Unless otherwise stated, the above words have no special meaning.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations 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 referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0046] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", and "couple" 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 invention can be understood according to specific circumstances.

Claims

1. A mast crane whole machine shifting device, characterized in that: The invention comprises installation positions distributed on the crane base, each installation position is provided with an L-shaped beam group, the L-shaped beam group is composed of one or more L-shaped beams, the L-shaped beam comprises a horizontal section and a vertical section, wherein the vertical section is connected to the crane base, and the horizontal section extends outward from the crane base.

2. The whole-machine shifting device of a mast crane according to claim 1, characterized in that: Each L-shaped beam in the L-shaped beam group is located at the same height.

3. The whole-machine shifting device of a mast crane according to claim 1, characterized in that: The installation positions are distributed at the two end portions of the front and rear bottom beams in the crane base.

4. The whole-machine shifting device of a mast crane according to any one of claims 1 to 3, characterized in that: The lower end of the vertical section of the L-shaped beam is connected to the crane base through a lower connecting pin shaft, the upper end of the vertical section is connected to the crane base through a latch mechanism, and a tightening surface is also provided between the vertical section and the crane base.

5. The whole-machine shifting device of a mast crane according to claim 4, characterized in that: The latch mechanism includes a base ear plate, an L-shaped beam ear plate and an upper connecting pin shaft. The base ear plate is fixedly connected to the crane base, the L-shaped beam ear plate is fixedly connected to the L-shaped beam, a base interface is provided on the base ear plate, an L-shaped beam interface is provided on the L-shaped beam ear plate, and the upper connecting pin shaft is inserted in the corresponding base interface and L-shaped beam interface.

6. The whole-machine shifting device of a mast crane according to claim 5, characterized in that: The L-shaped beam ear plates are provided with two and are respectively located above and below the base ear plates; the base interface is an oblong hole, and the L-shaped beam interface is a round hole.

7. The whole-machine shifting device of a mast crane according to any one of claims 1 to 3, characterized in that: The vertical section of the L-shaped beam is connected to the crane base via a flange.

8. The whole-machine shifting device of a mast crane according to any one of claims 1 to 3, characterized in that: The L-shaped beam group is composed of a plurality of L-shaped beams, and adjacent L-shaped beams are connected by one or more groups of connecting rods.

9. The whole-machine shifting device of a mast crane according to claim 8, characterized in that: The connecting rod is composed of a left-handed rod, an intermediate sleeve and a right-handed rod. The left-handed rod is provided with a left-handed thread, and the right-handed rod is provided with a right-handed thread. Both the left-handed rod and the right-handed rod are threadedly connected to the corresponding ends of the intermediate sleeve.

10. The whole-machine shifting device of a mast crane according to claim 9, characterized in that: The two ends of the connecting rod are connected to the L-shaped beam through a pin shaft or a flange.

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