CN113338223A

CN113338223A - Method for adjusting unloading load

Info

Publication number: CN113338223A
Application number: CN202110644816.8A
Authority: CN
Inventors: 李辉; 冯腊初; 张明; 贾攀攀; 王永田
Original assignee: Shanghai Zhenghua Heavy Industries Co Ltd
Current assignee: Shanghai Zhenghua Heavy Industries Co Ltd
Priority date: 2021-06-09
Filing date: 2021-06-09
Publication date: 2021-09-03
Anticipated expiration: 2041-06-09
Also published as: CN113338223B

Abstract

The invention discloses a method for adjusting unloading load, which comprises the following steps: before the equipment is unloaded, a slideway is laid at the bottom of the equipment; auxiliary supporting beams are additionally arranged on the supporting beams on the two sides of the bottom of the equipment; an adjustable supporting part is arranged between the slideway and the supporting beam of the equipment; adjusting the adjustable supporting part to lift at least part of the supporting beam; and unloading the equipment, so that the equipment is unloaded on the slide way through the adjustable supporting part and slides from the back field to the front field of the wharf. Adopt above-mentioned technical scheme, through adding at the equipment bottom and establishing auxiliary supporting beam, can solve the equipment in-process that slides, the inconsistent supporting beam that leads to the fact of fore and after dock slide beam width and structure difference and the slide on the pier problem of not corresponding, set up the difference in height through the slide bottom surface, realize the transfer of load between different slides, through setting up adjustable support portion, realize the secondary distribution of load between supporting beam and the slide, make supporting beam's the bearing more even, reduce load peak value and the pressure differential on the slide.

Description

Method for adjusting unloading load

Technical Field

The invention relates to the technical field of wharf equipment transportation, in particular to a method for adjusting unloading load.

Background

In the prior art, the wharf can limit the peak value borne by the wharf in the using process, so that the wharf can work stably and safely. However, in the unloading process of some large-scale equipment (such as ultra-large wind power equipment) at the wharf, on one hand, the large-scale equipment is heavy, and on the other hand, a large peak value occurs in the unloading process, which exceeds the limit that the wharf can bear, and thus, a large potential safety hazard is generated.

Therefore, it is an urgent need in the art to provide a method for adjusting unloading load that can be applied to a dock unloading device.

Disclosure of Invention

The invention aims to solve the problem that the unloading peak value exceeds the loading limit of a wharf when the wharf unloads a device in the prior art.

In order to solve the above problems, the present invention discloses a method for adjusting unloading load, which is used for unloading equipment at a wharf, and comprises the following steps:

before the equipment is unloaded, paving a slideway at the bottom of the equipment, and guiding the equipment to slide from a rear field to a front field of a wharf;

an auxiliary supporting beam is additionally arranged on at least one of the supporting beams at the two sides of the bottom of the device along the fore-and-aft field direction of the wharf and is used for sharing and bearing the load of the supporting beam;

an adjustable supporting part is arranged between the slideway and a supporting beam of the equipment and is used for bearing the load of the supporting beam;

adjusting the adjustable supporting part along the fore-and-aft field direction of the wharf, so that the adjustable supporting part at least jacks a part of the supporting beams to share the load on other supporting beams;

and unloading the equipment, so that the equipment is unloaded on the slide way through the adjustable supporting part and slides from the back field to the front field of the wharf through the slide way.

By adopting the technical scheme, the auxiliary supporting beam is additionally arranged at the bottom of the device, the problem that the supporting beam and the slide way on the wharf do not correspond to each other due to the fact that the width of the slide way beam of the wharf front yard and the width of the slide way beam of the wharf back yard are different and the structure of the slide way beam of the wharf front yard and the slide way beam of the wharf back yard are different in the sliding process of the device can be solved, and the height difference is arranged on the bottom surface of the slide way. Meanwhile, the adjustable supporting parts are arranged, so that the load between the supporting beam and the slide ways is distributed uniformly for the second time, the supporting beam is more uniformly loaded when the equipment slides, the load peak value and the pressure difference on each row of slide ways are greatly reduced, and the stress is more uniform.

According to another embodiment of the invention, the supporting beams on both sides of the bottom of the device are jacked in the fore-and-aft yard direction of the wharf.

According to another embodiment of the invention, before the device is unloaded, all adjustable supports are adjusted to the tightest state so that the adjustable supports carry the load on the support beam.

According to another embodiment of the invention, the adjustable support parts under the support beams on both sides of the bottom of the equipment are adjusted, so that a proper gap is reserved between the adjustable support parts at the peak of the load and the support beams, the load at the peak is transferred to the surrounding area, and the peak of the load on the slide way is reduced.

According to another embodiment of the present invention, when the adjustable supporting portion is in the tightest state, marking straight lines are marked on two sides of the adjustable supporting portion from top to bottom, and then the adjustable supporting portion is released, so that a proper gap is reserved between the adjustable supporting portion and the supporting beam, and the size of the gap can be calculated by the moving distance of the marked straight lines in the horizontal direction.

According to another embodiment of the present invention, the adjustable supporting portion is a pair of slanting wood which is disposed opposite to each other and is attached to each other through an inclined surface.

According to another embodiment of the present invention, the gap is in the range of 2 to 4 mm.

According to another embodiment of the invention, the auxiliary support beams are removed after the equipment has been moved from the back yard to the front yard of the quay.

According to another embodiment of the invention, the number of runners corresponds to the number of support beams, and each of the runners and support beams has five.

According to another embodiment of the invention, the skid is provided with a skid beam.

Drawings

The invention will be described in further detail with reference to the following figures and detailed description:

FIG. 1 is a flow chart of a method of unloading a load provided by the present invention;

FIG. 2 is a schematic diagram of an actual application of the method of unloading a load according to the present invention;

FIG. 3 is a schematic perspective view of a bottom support frame of the apparatus for unloading a load according to the present invention;

FIG. 4 is a schematic side view of the bottom support frame of the apparatus for unloading a load according to the present invention;

FIG. 5 is a schematic front view of the bottom support frame of the apparatus for unloading a load according to the present invention;

FIG. 6 is a schematic cross-sectional view of a wharf back yard in a method for unloading a load according to the present invention;

FIG. 7 is a schematic cross-sectional view of a quay forecourt in a method of unloading a load according to the present invention;

FIG. 8 is a schematic structural view of a jacking device and an adjustable support portion in a method of unloading a load according to the present invention;

FIG. 9 is a schematic view of the adjustable support portion in a compressed state according to one method of unloading a load of the present invention;

FIG. 10 is a schematic view of the adjustable support portion with a gap in the method of unloading a load according to the present invention;

fig. 11 is a comparison graph of load changes before and after jacking the 3# slide in the method for unloading load provided by the invention.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "provided", "disposed", "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.

As shown in fig. 1 to 10, the present invention discloses a method for adjusting unloading load, which is used for unloading equipment 2 at a wharf 1, and comprises the following steps: s1: before the device 2 is unloaded, a slideway 10 is laid on the bottom of the device 2 for guiding the device 2 to slide from the back field to the front field of the quay 1 (as indicated by the arrow in fig. 2); s2: in the fore-and-aft field direction of the wharf 1 (as shown by arrows in fig. 2), an auxiliary support beam 22 is additionally arranged on at least one support beam 21 of the support beams 21 on both sides of the bottom of the device 2 for sharing and carrying the load of the support beam 21; s3: an adjustable support 3 is arranged between the slideway 10 and the support beam 21 of the device 2 for carrying the load of the support beam 21; s4: adjusting the adjustable supporting part 3 along the front-rear field direction of the wharf 1, so that the adjustable supporting part 3 at least jacks a part of the supporting beams 21 to share the load on other supporting beams 21; s5: the device 2 is unloaded such that the device 2 is unloaded on the ramp 10 by means of the adjustable support 3 and slides from the back field to the front field of the quay 1 by means of the ramp 10.

That is, the whole process of unloading the device 2 includes five steps, and the sequence between each step can be reasonably arranged according to actual needs, as long as it is ensured that the peak value of unloading can be effectively reduced in the unloading process, and the peak value of unloading can not exceed the limit of the wharf 1. Specifically, in step S1, before the device 2 is unloaded, a skid 10 is laid on the bottom of the device 2 for guiding the device 2 to skid from the back side to the front side of the quay 1. That is, the device 2 is slid from the back side of the quay 1 to the front side of the quay 1 by means of the chute 10. Before the device 2 is unloaded, the chute 10 is laid out at the bottom of the device 2. The number and structure of the slideways 10 are not limited in the invention, and the slideways can be reasonably arranged according to actual needs as long as the equipment 2 can be guided to slide from the rear field to the front field of the wharf 1 after the equipment 2 is unloaded.

Specifically, referring to fig. 2 in combination with fig. 6 and 7, in the present embodiment, the number of the slideways 10 is five, that is, five slideways 10 are arranged in parallel at the bottom of the device 2. In the present embodiment, the equipment 2 is a converter station of an offshore wind power plant, having a width of about 89m, and five skids 10 are arranged in parallel at intervals on the quay 1 in the fore-and-aft direction of the quay 1 for guiding the equipment 2 from the fore-and-aft skid 10 of the quay 1 after the equipment 2 is unloaded. Preferably, in this embodiment, the slideways 10 are arranged according to the design requirement, and in other embodiments, other intervals between the slideways may be arranged according to the actual requirement.

Meanwhile, in order to ensure that the slideway 10 can effectively slide the equipment 2 from the back field to the front field, in the embodiment, the slideway 10 is provided with a sliding plate beam 11. Specifically, referring to fig. 6 and 7 in combination with fig. 8 to 10, in the present embodiment, the quay 1 is provided with a skid beam 12, the skid 10 is provided on the skid beam 12, and the skid beam 11 is provided on the skid 10. The skid beams 11 can transfer the load to the skid beams 12 through the skids 10, and support the equipment 2. The arrangement of the skid beams 11 enables the equipment 2 to be slid stably and reliably from the rear field to the front field of the quay 1 on the skids 10.

Further, referring to fig. 3 in combination with fig. 2, in step S2 of the present embodiment, an auxiliary support beam 22 is added on at least one support beam 21 of the support beams 21 on both sides of the bottom of the device 2 in the fore-and-aft field direction of the quay 1 for sharing and carrying the load of the support beam 21.

In practical application, since the runway beams 12 are part of the quay 1 and belong to the main structure of the load-bearing, when laying the runway 10, it is necessary to ensure that the runway 10 is laid on the runway beams 12. At the same time, it is also necessary to enable the support beam 21 of the apparatus 2 to be aligned with the skid 10 and the skid beam 11 and to ensure that the weight of the apparatus 2 is completely dropped on the skid beam 11. However, in practical situations, it is difficult to ensure that the support beams 21 at the bottom of the apparatus 2 are accurately aligned with the skid beams 11 on the skid 10 due to the size of the apparatus 2 and the difference in the shape and structure of the apparatus 2. Therefore, before the device 2 is unloaded, an auxiliary support beam 22 is required to be added to the support beam 21 at the bottom of the device 2.

Specifically, in this embodiment, the bottom of the apparatus 2 is provided with a support frame 20, and the support frame 20 is provided with five support beams 21 (e.g., (r) - (v) in fig. 3) corresponding to the five slideways 10 (e.g., (r) - (v) in fig. 7) on the quay 1, that is, the number of the slideways 10 corresponds to the number of the support beams 21, and each of the slideways 10 and the support beams 21 has five. Referring to fig. 3 to 5, in the present embodiment, five support beams 21 are disposed below the support frame 20 in parallel, the five support beams 21 are connected together through a transverse connecting beam 25 to form a main body of the entire support frame 20, the inclined rods 23 of the support frame 20 are distributed on the main body formed by the transverse connecting beam 25 and the support beams 21, and the upper portions of the inclined rods 23 are provided with support brackets 24, and the support brackets 24 can be fixedly connected with the bottom of the device 2, so as to realize effective bearing of the device.

Further, due to the structure of the converter station itself, one of the support beams 21 on both sides of the bottom cannot be aligned with the skid beam 11 on the skid 10. In order to ensure that the entire weight of the equipment 2 can be carried by the skid ways 10 after unloading, it is necessary to add an auxiliary support beam 22, that is, a sixth support beam as the auxiliary support beam 22 (as shown in fig. 3) to at least one of the support beams 21 on both sides of the bottom of the equipment 2 for sharing and carrying the load on the support beams 21 on both sides of the bottom of the equipment 2, so that the entire weight of the equipment 2 can be transferred to the skid ways 10 through the support beams 21 and the auxiliary support beams 22 (as shown in fig. 7) ((i) - (ii)), ensuring that the equipment 2 can be stably and reliably unloaded onto the skid ways 10 and can be unloaded from the forecourt of the dock 1 of the backyard skid ways 10 of the dock 1 along the skid ways 10.

More specifically, referring to fig. 3 in conjunction with fig. 6 and 7, in this embodiment, an auxiliary support beam 22 is added on the outer side of the fifth support beam 21 (e.g., # in fig. 3), and the auxiliary support beam 22 can be aligned with the skid beam 11 on the skid way 10. After the device 2 is unloaded, the auxiliary supporting beam 22 can share and carry the load on the fifth supporting beam 21 at the bottom of the device 2, so that the whole weight of the device 2 can be transferred to the slide way 10 through the supporting beam 21 and the auxiliary supporting beam 22, and under the common support of the supporting beam 21 and the auxiliary supporting beam 22, the device 2 can be stably and reliably unloaded on the slide way 10, and can be unloaded from the forecourt of the dock 1 of the backyard slide 10 of the dock 1 along the slide way 10.

In other embodiments, the auxiliary supporting beam 22 may be disposed outside the first supporting beam 21 (see r in fig. 3), or the auxiliary supporting beam 22 may be disposed outside both the first supporting beam 21 and the fifth supporting beam 21 (i.e., the outermost two supporting beams 21).

It should be noted that the present invention does not limit the specific structure and length of the auxiliary support beam, as long as the auxiliary support beam can share and carry the load on the support beam at the bottom of the equipment. Specifically, referring to fig. 3 in combination with fig. 6 and 7, in this embodiment, due to the limited width of the above-water installation platform, the two outer support beams 21 (i.e., the first support beam and the fifth support beam) at the bottom of the device 2 cannot be aligned with the center line of the slide way 10 on the wharf 1, but slightly offset inward, so that the two outer support beams 21 at the bottom of the device 2 can only correspond to the slide way 10 on the front side of the wharf 1 but cannot correspond to the slide way 10 on the back side of the wharf 1. Therefore, an auxiliary support beam 22 is required to be added to at least one of the two support beams 21 at the bottom of the device 2 to meet the requirement of corresponding to the slide way 10 when the wharf 1 slides at the back of the yard. Meanwhile, the length of the auxiliary supporting beam 22 should be shorter than that of the fifth supporting beam 21, so that the stable conversion of the load of the auxiliary supporting beam 22 to the fifth supporting beam 21 (or the first supporting beam) can be realized in the process that the equipment 2 slides to the front of the wharf 1, the equipment 2 can be stably and reliably unloaded on the slideway 10, and the problem of insufficient bearing capacity of the wharf 1 can be solved from the front of the wharf 1 of the rear slideway 10 of the wharf 1 along the slideway 10.

Wherein, the auxiliary supporting beam 22 can be formed integrally with the fifth supporting beam 21 (or the first supporting beam 21), or can be formed separately and then connected together by welding, connecting piece connection and other forms, the invention is not limited to this, and can be selected reasonably according to actual needs,

in addition, in order to avoid the influence of the auxiliary support beams 22 on the installation of the equipment 2 on the water, the auxiliary support beams 22 are removed after the equipment 2 is moved from the rear field to the front field of the quay 1. The removal of the auxiliary support beam 22 reduces the weight of the apparatus 2 and facilitates the installation of the apparatus 2 on water.

Further, referring to fig. 2 in combination with fig. 8 to 10, in step S3 of the present embodiment, an adjustable support portion 3 is provided between the chute 10 and the support beam 21 of the apparatus 2 for carrying the load of the support beam 21. The adjustable support part 3 is arranged between the slideway 10 and the supporting beam 21 of the equipment 2, and can adjust the height, so that the adjustable support part 3 can adapt to the height change between the slideway 10 and the supporting beam 21, and the reasonable distribution of the load on each supporting beam 21 is realized.

Further, in step S4, the adjustable support 3 is adjusted along the fore-and-aft field of the quay 1, so that the adjustable support 3 lifts at least a part of the support beams 21 to share the load on the other support beams 21. The supporting beam 21 is lifted up at multiple points simultaneously through the adjustable supporting part 3, so that the supporting beam 21 is appropriately pre-deformed and bears certain pre-pressure, and the three slideways 10 with the largest load are transferred to the slideways 10 with the smaller stress on the two sides (namely, the slideways corresponding to the first supporting beam and the fifth supporting beam). Referring to fig. 8, it should be noted that the supporting beam 21 can be lifted by using a conventional lifting device 4, such as a hydraulic jack, and after the supporting beam 21 is lifted by the lifting device 4, the adjustable supporting portion 3 is placed between the slideway 10 and the supporting beam 21, and the adjustable supporting portion 3 is adjusted to bear and share the load on the supporting beam 21.

Specifically, referring to fig. 2 in combination with fig. 8 to 10, in the present embodiment, the whole equipment 2 weighs 2.5 ten thousand tons, and according to the gravity distribution thereof, the two support beams 21 (i.e., the first support beam and the fifth support beam) on the outer side of the bottom of the equipment 2 and the corresponding slideways 10 distribute a small load, while the load distributed on the slideways 10 in the middle three rows is excessive, and stress concentration exists at local nodes, and the load peak value is far beyond the allowable load peak value of the wharf 1. Therefore, preferably, in step S4 of this embodiment, the supporting beams 21 on both sides of the bottom of the device 2 are lifted in the front and back field directions of the quay 1, so that the excessive load distributed on the three middle rows of the slideways 10 is transferred to the slideways 10 with smaller force on both sides (i.e., the slideways corresponding to the first supporting beam and the fifth supporting beam), so as to achieve relatively uniform secondary distribution of the load between the supporting beams 21 and the slideways 10, so that the supporting beams 21 can be more uniformly supported when the device 2 slides, the peak load value on each row of the slideways 10 and the pressure difference between different slideways 10 are greatly reduced, and the force is more uniformly applied. Referring to fig. 11, when the load before and after the 3# slideway is jacked, it can be seen that after the supporting beams 21 on the two sides of the bottom of the equipment 2 are jacked, the peak load value on the 3# slideway 10 is obviously reduced, and the load is distributed more uniformly.

After the adjustment of the above steps is completed, in step S5, the device 2 is unloaded so that the device 2 is unloaded on the slide way 10 through the adjustable support 3 and slides from the back field to the front field of the quay 1 through the slide way 10.

By adopting the technical scheme, the auxiliary supporting beam 22 is additionally arranged at the bottom of the equipment 2, so that the problem that the supporting beam 21 and the slide way 10 on the wharf 1 do not correspond to each other due to the fact that the widths of the slide way beams 12 of the wharf front and rear fields are different and the structures of the slide way beams of the wharf front and rear fields are different in the process that the equipment 2 slides from the wharf 1 rear field to the wharf 1 front field can be solved, and the load transfer among different slide ways 10 in the sliding process is realized. Simultaneously, through setting up adjustable support portion 3, realized carrying out comparatively even secondary distribution to the load between a supporting beam 21 and the slide 10 for a supporting beam 21 bears more evenly when equipment 2 slides, has reduced load peak value and pressure differential on every row of slide 10 by a wide margin, and the atress is more even.

Further, referring to fig. 2 in combination with fig. 8 to 10, in step S5 of the present embodiment, before the device 2 is unloaded, all the adjustable supports 3 are adjusted to the tightest state (as shown in fig. 9), so that the adjustable supports 3 carry the load on the support beam 21. That is, after the supporting beam 21 is jacked by the jacking device, all the adjustable supporting portions 3 are adjusted to the tightest state, so that the adjustable supporting portions 3 bear the load on the supporting beam 21 after the equipment 2 is unloaded. When the adjustable support part 3 is in the tightest state, the load on the support beam 21 can be transferred to the slideway 10 through the adjustable support part 3, so that the load transfer is realized. At this time, due to the uneven distribution of the load, a load peak may occur on part of the adjustable support 3, affecting the unloading of the apparatus 2.

In order to reduce the peak load on part of the adjustable supports 3, referring to fig. 2 and referring to fig. 8 to 10, in this embodiment, after all the adjustable supports 3 are adjusted to the tightest state, the adjustable supports 3 under the support beam 21 at the bottom of the equipment 2 are adjusted, so that a proper gap (as shown in fig. 10) is reserved between the adjustable supports 3 at the peak load and the support beam 21, so as to transfer the load at the peak load to the surrounding area, and reduce the peak load on the chute 10.

That is, the adjustable support 3 at the peak of the load is adjusted so that the adjustable support 3 is lowered here, and a gap occurs between the adjustable support 3 and the support beam 21. The load is thus transferred to the surrounding area and distributed to the surrounding adjustable supports 3, so that the load distribution on each adjustable support 3 is more uniform, thereby reducing the peak load on the ramp 10.

It should be explained that a suitable gap is reserved between the adjustable support 3 and the support beam 21, if the gap is too large, the adjustable support 3 cannot effectively support the support beam 21 after the device 2 is unloaded, and if the gap is too small, the load peak cannot be effectively transferred to the surrounding adjustable support 3. Therefore, the gap reserved between the adjustable support portion 3 and the support beam 21 is appropriate, and preferably, the gap is in the range of 2-4 mm. In this embodiment, through the accurate reservation to the regional micro clearance of part under the condition of bearing equal load, make the load peak value on every row of slide 10 reduce by a wide margin, the atress is more even, has reduced the pressure differential on every row of slide 10 by a wide margin.

It should be noted that the specific structure and shape of the adjustable support portion 3 are not limited in the present invention, as long as the support beam 21 can be tightened or loosened by adjustment. Specifically, referring to fig. 2 in conjunction with fig. 8 to 10, in the present embodiment, the adjustable supporting portions 3 are a pair of inclined bars which are oppositely disposed up and down and are attached by an inclined surface. The inclined wood has low cost, strong pressure resistance and good buffering and bearing capacity, and can be used as a flexible force transmission medium between the supporting beam 21 and the slideway 10. Through a pair of ramp wood of inclined plane laminating, can compress more tightly more, the fine weight that bears equipment 2.

In addition, because the clings to the degree difference under the atress state and the free unstressed state for the ramp, in order to guarantee the accuracy of the reserved clearance, can be when all adjustable support portions 3 are in the tightest state, mark straight line 30 from top to bottom at the both sides of the adjustable support portion 3 that need to reserve the clearance, then loosen adjustable support portion 3, make adjustable support portion 3 and support beam 21 reserve out the appropriate clearance, and can obtain the size H of the clearance through the distance W calculation that mark straight line 30 that marks moved in the horizontal direction that marks.

Specifically, referring to fig. 2 in combination with fig. 8 to 10, in this embodiment, for the slashes at the positions where the reserved gaps are required, in the state of being knocked down, marking straight lines 30 are scribed on both sides of the upper and lower slashes as shown in fig. 9, then the slashes are knocked down, and the slashes are replaced at intervals of the marking straight lines 30 shown in fig. 10. The size H of the reserved gap can be accurately calculated according to the inclination angle A of the inclined wood and the moving distance W, and the accuracy of the reserved gap is guaranteed.

While the invention has been shown and described with reference to certain preferred embodiments thereof, it will be understood by those skilled in the art that the foregoing is a more detailed description of the invention, taken in conjunction with the specific embodiments thereof, and that no limitation of the invention is intended thereby. Various changes in form and detail, including simple deductions or substitutions, may be made by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A method of adjusting unloading loads for unloading equipment at a dock, comprising the steps of:

before the equipment is unloaded, paving a slideway at the bottom of the equipment, and guiding the equipment to slide from a rear field to a front field of the wharf;

arranging an adjustable supporting part between the slideway and a supporting beam of the equipment, wherein the adjustable supporting part is used for bearing the load of the supporting beam;

unloading the equipment so that the equipment is unloaded on the slide way through the adjustable support part and slides from the back field to the front field of the wharf through the slide way.

2. The method of adjusting unloaded loads of claim 1 wherein the support beams on both sides of the bottom of the apparatus are jacked in the dockside fore and aft direction.

3. A method of adjusting the off-loading of claim 2 wherein all of the adjustable supports are adjusted to a tightest condition before the apparatus is off-loaded so that the adjustable supports carry the load on the support beam.

4. A method for regulating the unloading of loads according to claim 3, characterized in that the adjustable support under the support beam at the bottom of the apparatus is adjusted to leave a suitable gap between the adjustable support at the peak of the load and the support beam for transferring the load at the peak to the surrounding area, reducing the peak of the load on the ramp.

5. The method for adjusting unloaded load according to claim 4, wherein when the adjustable support part is in the tightest state, marking straight lines are marked on two sides of the adjustable support part from top to bottom, then the adjustable support part is released, so that a proper gap is reserved between the adjustable support part and the support beam, and the size of the gap can be calculated by the distance moved by the marked straight lines in the horizontal direction.

6. The method of load shedding according to claim 5, wherein the adjustable support is a pair of inclined bars disposed opposite each other and joined by an inclined surface.

7. A method of load shedding according to claim 4 or 5, wherein the clearance is in the range of 2-4 mm.

8. A method of regulating off-loading according to claim 1, characterised in that the auxiliary support beams are removed after the equipment has been moved from the back yard to the front yard of the quay.

9. A method for regulating the unloading of a load according to claim 1, characterized in that the number of runners and the number of support beams correspond, the runners and the support beams each having five.

10. A method of load shedding according to claim 1, wherein the ramp is provided with a skid beam.