Guide wheel gap auxiliary adjusting device and adjusting method of chain bucket type ship unloader

Abstract

The invention provides an auxiliary guide wheel gap adjusting device and method for a chain bucket type ship unloader. The auxiliary guide wheel gap adjusting device comprises a retainer replacement frame and a plurality of adjusting jackscrews located at the bottom of the retainer replacement frame. The adjusting jackscrews are matched to adjust the height position and the levelness of the retainer replacement frame; the width of the retainer replacement frame is smaller than that of the retainer of the ship unloader in a lying state; two guide rail mounting frames are arranged on the retainer replacement frame at intervals, and the distance between the two guide rail mounting frames is matched with the distance between guide rails located on the two sides of the ship unloader retainer; due to the fact that the retainer replacing frame with the light weight is used for replacing a retainer with the heavy weight to be in butt joint with the lower cylinder body so as to adjust the gaps between the guide wheels, hoisting operation in the guide wheel gap adjusting procedure is effectively reduced; and meanwhile, the width of the retainer replacement frame is small, so that the occupation of the construction space in the lower cylinder body is effectively reduced, and the construction convenience is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of ship unloader assembly, and in particular relates to a guide wheel clearance auxiliary adjustment device and an adjustment method for a chain bucket ship unloader. Background Art

[0002] Chain bucket ship unloaders are widely used in port loading and unloading operations because they can operate continuously. Chain bucket ship unloaders mainly include a reclaiming device and a conveying device. The invention patent with application number 202110858464.6 discloses a reclaiming device of a chain bucket continuous ship unloader with a floating compensation function, and specifically discloses that the reclaiming device includes a retaining frame and a reclaiming mechanism; wherein, the retaining frame of the reclaiming device is vertically slidably arranged on the support structure C (i.e., the lower cylinder), and is driven up and down by the retaining drive mechanism; in order to ensure the stability of the up and down movement of the retaining frame, a guide rail is usually arranged on the retaining frame, and a guide wheel group matching the guide rail is arranged on the lower cylinder; the guide wheel group includes two guide wheels arranged obliquely and symmetrically, and the two guide wheels in the guide wheel group are clamped with the guide rail to achieve the sliding cooperation between the retaining frame and the lower cylinder. However, after the lower cylinder is used for a long time, it is very easy to have defects such as local fracture, local rust and peeling, which affects the structural strength of the lower cylinder, and the lower cylinder needs to be regularly inspected and replaced. After the overhaul and replacement, the lower cylinder needs to be re-installed with each guide wheel and the clearance between the guide wheel and the guide rail on the cage needs to be adjusted to ensure the smooth operation of the subsequent cage.

[0003] At present, the preinstallation and adjustment of the guide wheels on the lower cylinder are carried out on land, and the main construction methods are: 1) Lay the retaining frame with the guide rail flat, and then lay the lower cylinder with the preinstalled guide wheel on the retaining frame, and adjust the height and levelness of the lower cylinder to ensure that the depth of the retaining frame extending into the lower cylinder meets the requirements and the lower cylinder is parallel to the retaining frame; 2) Measure the gap between each guide wheel and the corresponding guide rail plane, and adjust the rotation angle of the eccentric wheel shaft on the guide wheel according to the measured gap until the gap between the guide wheel and the guide rail plane meets the requirements. However, due to the heavy weight of the lower cylinder and the retaining frame (the lower cylinder weighs about 45t and the retaining frame weighs about 25t), a crane is required to assist in lifting and laying them down, which is very dangerous. In addition, due to the heavy weight of the lower cylinder, it needs to be lifted and adjusted by a jack many times during the leveling operation, which consumes a lot of energy. In addition, since the retaining frame partially extends into the lower cylinder, it will occupy a large amount of space in the lower cylinder, resulting in a small remaining space in the lower cylinder, which is not conducive to measuring the gap between the guide wheel and the guide rail and adjusting the guide wheel into place. Summary of the invention

[0004] In view of the above shortcomings of the prior art, the purpose of the present invention is to provide a guide wheel gap auxiliary adjustment device and adjustment method for a chain bucket ship unloader, which utilizes a frame-type auxiliary adjustment device to replace the heavier ship unloader retaining frame and connect with the lower cylinder to adjust the guide wheel gap, thereby reducing the amount of lifting work in the guide wheel gap adjustment process, which not only reduces the occupancy of the crane, but also reduces the safety risks caused by lifting.

[0005] To achieve the above-mentioned purpose and other related purposes, the present invention provides a guide wheel gap auxiliary adjustment device for a chain bucket ship unloader, which is used to adjust the guide wheel gap of the ship unloader at the lower cylinder; the guide wheel gap auxiliary adjustment device includes a retaining frame replacement frame and a plurality of adjustment top screws located at the bottom of the retaining frame replacement frame; each adjustment top screw is used to adjust the height position and horizontality of the retaining frame replacement frame; the width of the retaining frame replacement frame is smaller than the width of the ship unloader retaining frame in a lying state; two guide rail mounting frames are arranged on the retaining frame replacement frame, and the spacing between the two guide rail mounting frames matches the spacing between the guide rails on both sides of the ship unloader retaining frame; since the present invention utilizes a lighter retaining frame replacement frame to replace a heavier retaining frame to dock with the lower cylinder to adjust the guide wheel gaps, the hoisting operation in the guide wheel gap adjustment process is effectively reduced; at the same time, since the width of the retaining frame replacement frame is small, the occupation of the construction space in the lower cylinder is effectively reduced, thereby improving the construction convenience.

[0006] The preferred scheme of the above technical scheme is: the retaining frame replacement frame includes a bottom frame, a top frame and a column connecting the bottom frame and the top frame; each adjusting screw is threadedly connected at different positions of the bottom frame; because the retaining frame replacement frame is a hollow frame formed by the bottom frame, the top frame and the columns, the weight of the retaining frame replacement frame is effectively reduced.

[0007] A preferred solution of the above technical solution is: reinforcement frames connected to the bottom frame are arranged around the top frame to ensure the structural strength of the entire retaining frame replacement frame.

[0008] A preferred embodiment of the above technical solution is as follows: walking wheels are provided below the bottom frame.

[0009] The present invention also provides a guide wheel clearance adjustment method for a chain bucket ship unloader, which uses the above-mentioned guide wheel clearance auxiliary adjustment device for adjustment. The guide wheel clearance adjustment method comprises the following steps:

[0010] S1. Lift and lay the lower cylinder of the pre-installed guide wheel group on the supporting steel piers at the construction site, and check the horizontality of the lower cylinder; the height of each supporting steel pier is determined according to the shape, size and supported position of the lower cylinder;

[0011] S2. Obtain the relative position relationship between the guide rails on the ship unloader cage; then remove the guide rails from the ship unloader cage and install them on the guide rail mounting frame of the cage replacement frame, ensuring that the relative position relationship of the guide rails on the cage replacement frame is consistent with the relative position relationship of the guide rails on the ship unloader cage;

[0012] S3, move the retaining frame with guide rails into the lower cylinder, so that each guide rail is inserted between the two guide wheels in the corresponding guide wheel group;

[0013] S4. Screw each adjusting screw to adjust the height and levelness of the retainer replacement frame, so that the levelness of the retainer replacement frame and the depth of the retainer replacement frame extending into the lower cylinder meet the requirements;

[0014] S5. Adjust each guide wheel so that the distance between each guide wheel and the corresponding guide rail meets the preset clearance requirement, and lock the position of the guide wheel that meets the preset clearance requirement.

[0015] The preferred solution of the above technical solution is: the preset gap requirement is 0.3mm to 0.5mm.

[0016] As described above, the guide wheel clearance auxiliary adjustment device and adjustment method of the chain bucket ship unloader of the present invention have the following beneficial effects:

[0017] The guide wheel clearance auxiliary adjustment device provided by the present invention utilizes a lighter weight retaining frame to replace the existing ship unloader retaining frame and connect it with the lower cylinder to adjust the guide wheel clearance, effectively reducing the amount of lifting work in the guide wheel clearance adjustment process, thereby reducing the crane occupancy and lifting risks; in addition, since the retaining frame replacement frame has a smaller width, it effectively reduces the occupation of construction space in the lower space, so that construction personnel can measure and adjust the guide wheel clearance in a larger space, effectively overcoming the original retaining frame occupying the lower cylinder space resulting in a narrow construction space, reducing the difficulty of measuring and adjusting the guide wheel clearance, thereby shortening the construction period. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a three-dimensional diagram of each guide rail installed on the guide wheel gap auxiliary adjustment device.

[0019] Figure 2 for Figure 1 main view.

[0020] Figure 3 A three-dimensional view of the lower cylinder of the pre-installed guide wheel group placed on the supporting steel pier.

[0021] Figure 4 for Figure 3 main view.

[0022] Figure 5 for Figure 5 AA section view.

[0023] Figure 6 A three-dimensional diagram of the guide rail retainer entering the lower cylinder.

[0024] Description of Reference Numerals

[0025] Guide rail 01, lower cylinder 02, guide wheel group 03, guide wheel 031, retaining frame replacement frame 1, guide rail mounting frame 2, adjusting top screw 3, supporting steel pier 4. DETAILED DESCRIPTION

[0026] The following is a description of the implementation of the present invention by means of specific embodiments. Those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0027] See also Figures 1 to 6 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings in this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention, so they have no substantial technical significance. Any modification of the structure, change in the proportional relationship, or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the effects and purposes that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0028] The present application provides a guide wheel clearance auxiliary adjustment device for assisting in adjusting the guide wheel clearance of the chain bucket ship unloader at the lower cylinder. For ease of description, the definitions of the directions in the following embodiments are as follows: the length direction of the lower cylinder 02 in the lying state is defined as the front-to-back direction, the width direction of the lower cylinder 02 in the lying state is defined as the left-right direction, and the height direction of the lower cylinder 02 in the lying state is defined as the up-down direction. Based on this, Figure 1 and Figure 3 In the view shown, the X-axis direction is the front-to-back direction, the Y-axis direction is the left-to-right direction, and the Z-axis direction is the up-down direction.

[0029] Embodiment 1:

[0030] like Figures 1 to 6As shown, this embodiment provides a guide wheel clearance auxiliary adjustment device for a chain bucket ship unloader, which is used to adjust the guide wheel clearance of the ship unloader at the lower cylinder 02; the guide wheel clearance auxiliary adjustment device includes a retainer replacement frame 1, a guide rail mounting frame 2 and a plurality of adjustment top screws 3 located at the bottom of the retainer replacement frame 1;

[0031] The retainer replacement frame 1 is a hollow square frame, which is constructed by a top frame, a bottom frame and columns; wherein the top frame and the bottom frame are horizontal frames constructed by cross beams and longitudinal beams; the columns, cross beams and longitudinal beams can use existing steel materials such as angle steel, H steel, square tubes, etc., and there is no limitation on this. Based on weight considerations, the columns, cross beams and longitudinal beams of this embodiment preferably use angle steel; since the retainer replacement frame 1 is used to replace the ship unloader retainer and dock with the lower cylinder 02 to adjust the guide wheel gap, the size of the retainer replacement frame 1 needs to be determined according to the size of the ship unloader retainer;

[0032] There are two guide rail mounting frames 2, and the two guide rail mounting frames 2 are symmetrically arranged on the left and right sides of the top frame; the guide rail mounting frames 2 can use existing steel materials with flat outer walls such as square tubes, channel steels, H-steels, etc., which are not limited to this. The guide rail mounting frames 2 of this embodiment preferably use channel steels; since the two guide rail mounting frames 2 are used to install the guide rails 01 on both sides of the ship unloader holder, the spacing between the two guide rail mounting frames 2 needs to match the spacing between the guide rails on both sides of the ship unloader holder, so as to accurately simulate the docking of each guide rail 01 on the ship unloader holder with the corresponding guide wheel group 03 on the lower cylinder 02;

[0033] Each adjusting top screw 3 is threadedly connected to a different position of the bottom frame and is centrally symmetrically distributed about the center of the bottom frame; when the adjusting top screw 3 is screwed, the extension length of the adjusting top screw 3 can be changed. By only changing the extension length of each adjusting top screw 3, the height position and inclination of the bottom frame can be adjusted, thereby realizing the height adjustment and inclination adjustment of the entire retaining frame replacement frame 1, so that the guide rail 01 on the retaining frame replacement frame 1 can be smoothly docked with the corresponding guide wheel group 03 on the lower cylinder 02.

[0034] When it is necessary to adjust the clearance of the guide wheels on the lower cylinder 02 of the ship unloader, the lower cylinder 02 with the pre-installed guide wheel group 03 must first be laid flat on the supporting steel pier 4 of the construction site, and its horizontality must be checked; then, according to the relative position relationship of the guide rails 01 on the ship unloader holder, the guide rails 01 removed from the ship unloader holder are installed on the guide rail mounting frame 2 of the holder replacement frame 1; then, the holder replacement frame 1 with the guide rails 01 is pushed into the lower cylinder 02, so that the guide rails 01 are inserted into the corresponding guide wheel group 03. between the two guide wheels 031; adjust the height and levelness of the retaining frame replacement frame 1 by adjusting the top screw 3 to ensure that the levelness of the retaining frame replacement frame 1 is consistent with the levelness of the lower cylinder 02, and the depth of the retaining frame replacement frame 1 extending into the lower cylinder 02 meets the requirements; adjust each guide wheel 031 so that the gap between the guide wheel 031 and the corresponding guide rail 01 meets the requirements; lock the eccentric position of the guide wheel 031 that meets the requirements to complete the precise installation of the position of each guide wheel 031 in the lower cylinder 02.

[0035] Since the retaining frame replacing frame 1 is lighter in weight, there is no need to use a crane for lifting, which effectively reduces the lifting work in the guide wheel gap adjustment process. It not only reduces the crane occupancy and construction risks, but also the reduction of lifting work will shorten the entire construction period and improve construction efficiency.

[0036] In order to ensure the structural strength of the cage replacement frame 1, as Figure 1 As shown, the top frame is surrounded by reinforcement frames connected to the bottom frame. The reinforcement frame can be an X-shaped reinforcement frame with reinforcement rods crosswise arranged or a V-shaped reinforcement frame with reinforcement rods crosswise at the bottom ends. There is no limitation on this, as long as the structural strength of the retaining frame replacing the frame 1 is guaranteed without adding too much material.

[0037] Preferably, the width of the retaining frame replacement frame 1 is smaller than the width of the ship unloader retaining frame in the lying state; in this way, when the retaining frame replacement frame 1 with the guide rail 02 enters the lower cylinder 02, it occupies less internal space of the lower cylinder 02 than the ship unloader retaining frame, so that there is enough remaining space in the lower cylinder 02 for adjusting the guide wheels and measuring the gap, thereby improving the construction convenience; the specific width of the retaining frame replacement frame 1 can be determined according to the width of the ship unloader retaining frame in the lying state and the width space required for the construction personnel to facilitate the construction.

[0038] In order to facilitate the replacement frame 1 of the retaining frame to enter the lower cylinder 02 for docking, walking wheels can be set under the bottom frame; when the replacement frame 1 of the retaining frame needs to be moved, the extension amount of each adjusting top screw 3 must be reduced first to separate it from the ground; when the replacement frame 1 of the retaining frame is moved into place, the extension amount of each adjusting top screw 3 can be increased to make it contact with the ground, and the walking wheels are separated from the ground.

[0039] Embodiment 2

[0040] Based on the “guide wheel gap auxiliary adjustment device” of the first embodiment, this embodiment provides a guide wheel gap adjustment method for a chain bucket ship unloader, which specifically includes the following steps:

[0041] S1, such as Figure 3 As shown, the lower cylinder 02 of the pre-installed guide wheel group 03 is hoisted and laid on each supporting steel pier 3 at the construction site by a crane, and the horizontality of the lower cylinder 02 is checked; the height of each supporting steel pier 3 is determined according to the shape, size and supported position of the lower cylinder 02;

[0042] S2. Obtain the relative position relationship between the guide rails 01 on the holder of the ship unloader; then remove the guide rails 01 from the holder of the ship unloader and install them on the guide rail mounting frame 2 of the holder replacement frame 1, ensuring that the relative position relationship of the guide rails 01 on the holder replacement frame 1 is consistent with the relative position relationship of the guide rails 01 on the holder of the ship unloader;

[0043] like Figure 1 As shown, the relative positional relationship between the guide rails 01 refers to: the distance between the guide rails 01 on the same side and the spacing between the guide rails 01 on different sides.

[0044] When each guide rail 01 is installed on the retaining frame replacement frame 1, it is necessary to ensure that the top surface of each guide rail 01 is on the same horizontal plane to avoid affecting the subsequent guide wheel clearance adjustment.

[0045] S3, such as Figure 6 As shown, the retaining frame with guide rails 01 is moved into the lower cylinder 02 instead of the frame 1, so that each guide rail 01 is inserted between the two guide wheels 031 in the corresponding guide wheel group 03;

[0046] S4, screw each adjusting screw 3 to adjust the height and levelness of the retainer replacement frame 1, so that the levelness of the retainer replacement frame 1 and the depth of the retainer replacement frame 1 extending into the lower cylinder 02 meet the requirements;

[0047] That is, it is necessary to ensure that the horizontality of the retaining frame replacement frame 1 is consistent with the horizontality of the lower cylinder 02, and the spacing between the upper guide rail 01 of the retaining frame replacement frame 1 and the lower cylinder 02 is consistent with the spacing requirements between the upper guide rail 01 and the lower cylinder 02 of the actual ship unloader retaining frame.

[0048] S5. Adjust each guide wheel 031 so that the distance between each guide wheel 031 and the corresponding guide rail 01 meets the preset gap requirement, and lock the position of the guide wheel 031 that meets the preset gap requirement.

[0049] The preset gap requirement is 0.3 mm to 0.5 mm, and the gap measurement between the guide wheel 031 and the corresponding guide rail 01 can be achieved based on a feeler gauge.

[0050] Since the guide wheel gap auxiliary adjustment device of the present application utilizes a lighter weight retaining frame to replace the existing ship unloader retaining frame and connect it with the lower cylinder to adjust the guide wheel gap, it effectively overcomes the shortcomings of traditional ship unloader retaining frame docking, such as more lifting operations and smaller guide wheel gap adjustment space, making the guide wheel gap auxiliary adjustment device of the present application have high industrial utilization value.

[0051] The above embodiments are merely illustrative of the principles and effects of the present invention, and are not intended to limit the present invention. Anyone familiar with the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by a person of ordinary skill in the art without departing from the spirit and technical concept disclosed by the present invention shall still be covered by the claims of the present invention.

Claims

1. A guide wheel clearance auxiliary adjustment device for a chain bucket ship unloader, used for adjusting the guide wheel clearance of the ship unloader at the lower cylinder (02); It is characterized in that The guide wheel clearance auxiliary adjustment device comprises a retainer replacement frame (1) and a plurality of adjustment screws (3) located at the bottom of the retainer replacement frame (1); each adjustment screw (3) is used to adjust the height position and horizontality of the retainer replacement frame (1); the width of the retainer replacement frame (1) is smaller than the width of the ship unloader retainer in a lying state; two guide rail mounting frames (2) are arranged on the retainer replacement frame (1) at intervals, and the spacing between the two guide rail mounting frames (2) matches the spacing between the guide rails on both sides of the ship unloader retainer.

2. The guide wheel clearance auxiliary adjustment device of the chain bucket ship unloader according to claim 1, It is characterized in that The retaining frame replacement frame (1) comprises a bottom frame, a top frame and a column connecting the bottom frame and the top frame; each adjusting screw (3) is threadedly connected at different positions of the bottom frame.

3. The guide wheel clearance auxiliary adjustment device of the chain bucket ship unloader according to claim 2, It is characterized in that The top frame is surrounded by reinforcing frames connected to the bottom frame.

4. The guide wheel clearance auxiliary adjustment device of the chain bucket ship unloader according to claim 3, It is characterized in that Travel wheels are arranged below the bottom frame.

5. A method for adjusting the clearance of guide wheels of a chain bucket ship unloader. It is characterized in that The guide wheel clearance auxiliary adjustment device according to any one of claims 1 to 4 is used for adjustment, and the guide wheel clearance adjustment method comprises the following steps: S1, hoisting and laying the lower cylinder (02) of the pre-installed guide wheel group (03) on each supporting steel pier (3) at the construction site, and checking the horizontality of the lower cylinder (02); the height of each supporting steel pier (3) is determined according to the shape, size and supported position of the lower cylinder (02); S2, obtaining the relative position relationship between the guide rails (01) on the ship unloader holder; then removing the guide rails (01) from the ship unloader holder and installing them on the guide rail mounting frame (2) of the holder replacement frame (1), ensuring that the relative position relationship between the guide rails (01) on the holder replacement frame (1) is consistent with the relative position relationship between the guide rails (01) on the ship unloader holder; S3, moving the retaining frame with the guide rails (01) instead of the frame (1) into the lower cylinder (02), so that each guide rail (01) is inserted between the two guide wheels (031) in the corresponding guide wheel group (03); S4. Screw each adjusting screw (3) to adjust the height and levelness of the retaining frame replacement frame (1) so that the levelness of the retaining frame replacement frame (1) and the depth of the retaining frame replacement frame (1) extending into the lower cylinder (02) meet the requirements; S5. Each guide wheel (031) is adjusted so that the distance between each guide wheel (031) and the corresponding guide rail (01) meets the preset clearance requirement, and the guide wheel (031) that meets the preset clearance requirement is locked in position.

6. The method for adjusting the clearance of guide wheels of a chain bucket ship unloader according to claim 5, It is characterized in that The preset gap requirement is 0.3mm~0.5mm.

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