CN113664480A - Method for controlling precision of shaft hole of main body of hanging beam - Google Patents
Method for controlling precision of shaft hole of main body of hanging beam Download PDFInfo
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- CN113664480A CN113664480A CN202111112966.0A CN202111112966A CN113664480A CN 113664480 A CN113664480 A CN 113664480A CN 202111112966 A CN202111112966 A CN 202111112966A CN 113664480 A CN113664480 A CN 113664480A
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- hoisting point
- shaft
- shaft hole
- main body
- hoisting
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P19/00—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes
- B23P19/04—Machines for simply fitting together or separating metal parts or objects, or metal and non-metal parts, whether or not involving some deformation; Tools or devices therefor so far as not provided for in other classes for assembling or disassembling parts
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- Engineering & Computer Science (AREA)
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- Load-Engaging Elements For Cranes (AREA)
Abstract
The embodiment of the invention provides a method for controlling the precision of a shaft hole of a main body of a hanging beam, which comprises the following steps: s1: acquiring associated data of a first hoisting point beam and a second hoisting point beam; s2: preparing a dummy shaft and a support according to the correlation data; s3: installing one end of the dummy shaft in a shaft hole of the first hoisting point beam, and installing one end of the support on the first hoisting point beam, so that the dummy shaft, the support and the first hoisting point beam form a first member; s4: connecting the first member with the second hoisting point beam, wherein the other end of the dummy shaft is arranged in the shaft hole of the second hoisting point beam, and the other end of the support is arranged on the second hoisting point beam to form a first main body structure; s5: and removing the false shaft in the first main body structure.
Description
Technical Field
The invention relates to the technical field of heavy industry, in particular to a method for controlling the precision of a shaft hole of a main body of a hanging beam.
Background
The special crane ship for bridging is designed and manufactured for the offshore bridge sectional frame of the deep middle passage, and when the crane ship for bridging is used, the maximum hoisting length of a bridge deck is 110m, and the maximum hoisting weight is about 3000 t. The hanger belongs to an extra-heavy hanger. The lifting beam carrying pole is used as a stressed component of the lifting beam hanger, and the construction requirement is high, and the construction difficulty is high.
The frame transporting beam hanger is connected with a steel wire rope pulley block of the frame beam engineering ship through four upper lifting point cross beams on the lifting beam carrying pole. The pulley block is connected with the upper lifting point beam through a pin shaft. The 4 upper hoisting point cross beams are divided into a left group and a right group and are respectively connected with a hoisting pulley block of the engineering ship. The precision requirement of the beam hanging shaft of each left/right group of upper hanging points is very high (the concentricity is not more than 0.5mm, and the distance is not more than 2.5 mm).
The conventional welding method cannot meet the precision requirement of the design on the mounting hole of the pin shaft of the beam of the upper lifting point.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a method for controlling the precision of a shaft hole of a main body of a hanging beam, which is used for solving the technical problem that the precision requirement of designing a mounting hole of a cross beam pin shaft of an upper hanging point cannot be met according to the conventional welding method.
In order to solve the technical problem, the embodiment of the invention adopts the following technical scheme:
the embodiment provides a method for controlling the precision of a shaft hole of a main body of a hanging beam, which comprises the following steps:
s1: acquiring associated data of a first hoisting point beam and a second hoisting point beam, wherein the associated data comprises the distance between a shaft hole of the first hoisting point beam and a shaft hole of the second hoisting point beam, the sizes of the shaft holes of the first hoisting point beam and the second hoisting point beam and the concentricity of the first hoisting point beam and the second hoisting point beam;
s2: preparing a dummy shaft and a support according to the correlation data;
s3: installing one end of the dummy shaft in a shaft hole of the first hoisting point beam, and installing one end of the support on the first hoisting point beam, so that the dummy shaft, the support and the first hoisting point beam form a first member;
s4: connecting the first member with the second hoisting point beam, wherein the other end of the dummy shaft is arranged in the shaft hole of the second hoisting point beam, and the other end of the support is arranged on the second hoisting point beam to form a first main body structure;
s5: and removing the false shaft in the first main body structure.
Further, between S4 and S5, there are:
s41: and (5) standing the first main body structure, and executing S5 after assembling, welding, flaw detection, annealing correction and stress release.
Further, the S1 is preceded by:
s01: and acquiring the associated data of the first hoisting point beam and the second hoisting point beam according to the processing drawing.
Further, the S01 is preceded by:
s001: reserving preset machining allowance at the positions of the first hoisting point cross beam and the second hoisting point cross beam where shaft holes need to be machined;
s002: and processing the preset machining allowance positions reserved by the first hoisting point cross beam and the second hoisting point cross beam according to a processing drawing to generate corresponding shaft holes.
Further, the S4 specifically includes:
two ends of the dummy shaft penetrate into the shaft hole of the first lifting point cross beam and the shaft hole of the second lifting point cross beam which are matched, the relative positions of the two first lifting point cross beams and the second lifting point cross beam are adjusted, and the relative positions of the first lifting point cross beam and the second lifting point cross beam are fixed through supporting to form a first main body structure.
Furthermore, the number of the supports is two, the supports are arranged in parallel with the dummy shaft and fixedly installed on the opposite positions of the first hoisting point cross beam and the second hoisting point cross beam.
Further, the S5 specifically includes:
and cutting off and detaching the dummy shaft from the middle of the first hoisting point beam and the second hoisting point beam of the first main body structure.
Compared with the prior art, the embodiment of the invention has the beneficial effects that:
the embodiment of the invention provides a method for controlling the precision of a shaft hole of a main body of a hanging beam, which comprises the following steps: s1: acquiring associated data of a first hoisting point beam and a second hoisting point beam, wherein the associated data comprises the distance between a shaft hole of the first hoisting point beam and a shaft hole of the second hoisting point beam, the sizes of the shaft holes of the first hoisting point beam and the second hoisting point beam and the concentricity of the first hoisting point beam and the second hoisting point beam; s2: preparing a dummy shaft and a support according to the correlation data; s3: installing one end of the dummy shaft in a shaft hole of the first hoisting point beam, and installing one end of the support on the first hoisting point beam, so that the dummy shaft, the support and the first hoisting point beam form a first member; s4: connecting the first member with the second hoisting point beam, wherein the first hoisting point beam is connected with the second hoisting point beam, the other end of the dummy shaft is arranged in a shaft hole of the second hoisting point beam, and the other end of the support is arranged on the second hoisting point beam to form a first main body structure; s5: and removing the false shaft in the first main body structure.
The embodiment of the invention provides the method for controlling the precision of the shaft hole of the main body of the lifting beam, which is characterized in that a dummy shaft and a support are prepared through the associated data of a first lifting point beam and a second lifting point beam, the prepared dummy shaft and support can have the achieved precision and can meet the requirement of being applied between the first lifting point beam and the second lifting point beam, then the dummy shaft and the support are correspondingly assembled on the first lifting point beam to form a fixed first member, the first member is assembled on the second lifting point beam to form a complete first main body structure, wherein the dummy shaft is respectively assembled on the shaft hole of the first lifting point beam and the shaft hole of the second lifting point beam, the support can better support the first lifting point beam and the second lifting point beam, the influence of uncontrollable factors such as assembly deviation, welding deformation and the like on the relative position and the precision of the shaft hole of the first main body structure is effectively eliminated, thereby achieving the purpose of controlling the key precision requirement of the component; and finally, the dummy shaft is detached, so that the dummy shaft can be prevented from influencing the use of the shaft hole of the first hoisting point cross beam and the shaft hole of the second hoisting point cross beam on the first main body structure.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only the embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.
FIG. 1 is a flow chart of a method for controlling the accuracy of a shaft hole of a main body of a suspension beam according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a first main structure of a method for controlling accuracy of a shaft hole of a main body of a suspension beam provided by an embodiment of the invention when a dummy shaft is not removed.
Wherein:
100. a first hoisting point beam; 200. a second hoisting point beam; 300. a dummy shaft; 400. and (4) supporting.
Detailed Description
The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience in describing the embodiments of the present application and simplifying the description, but do not indicate or imply that the referred devices or elements must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the embodiments of the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the embodiments of the present application, it should be noted that the terms "mounted," "connected," and "connected" are used broadly and are defined as, for example, a fixed connection, an exchangeable connection, an integrated connection, a mechanical connection, an electrical connection, a direct connection, an indirect connection through an intermediate medium, and a communication between two elements, unless otherwise explicitly stated or limited. Specific meanings of the above terms in the embodiments of the present application can be understood in specific cases by those of ordinary skill in the art.
The following detailed description of embodiments of the present invention is provided in connection with the accompanying drawings and examples. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
As shown in fig. 1-2, the present embodiment provides a method for controlling accuracy of a shaft hole of a suspension beam main body, including:
s1: acquiring associated data of the first hoisting point beam 100 and the second hoisting point beam 200, wherein the associated data comprises the distance between the shaft hole of the first hoisting point beam 100 and the shaft hole of the second hoisting point beam 200, the shaft hole sizes of the first hoisting point beam 100 and the second hoisting point beam 200 and the concentricity of the first hoisting point beam 100 and the second hoisting point beam 200;
s2: preparing the dummy shaft 300 and the support 400 according to the correlation data;
s3: installing one end of the dummy shaft 300 in the shaft hole of the first lifting point beam 100 and one end of the support 400 on the first lifting point beam 100, so that the dummy shaft 300, the support 400 and the first lifting point beam 100 form a first member;
s4: connecting the first member with the second hoisting point beam 200, wherein the first hoisting point beam 100 is connected with the second hoisting point beam 200, the other end of the dummy shaft 300 is installed in the shaft hole of the second hoisting point beam 200, and the other end of the support 400 is installed on the second hoisting point beam 200, so as to form a first main body structure;
s5: the dummy shaft 300 is removed from the first body structure.
The embodiment of the invention provides a method for controlling the precision of the axle hole of the main body of the suspension beam, which prepares the dummy axle 300 and the support 400 through the associated data of the first suspension point cross beam 100 and the second suspension point cross beam 200, the prepared dummy axle 300 and the prepared support 400 can have the achieved precision and can be applied between the first suspension point cross beam 100 and the second suspension point cross beam 200, then the dummy axle 300 and the support 400 are correspondingly assembled on the first suspension point cross beam 100 to form a fixed first member, then the first member is assembled on the second suspension point cross beam 200 to form a complete first main body structure, wherein the dummy axle 300 is respectively assembled on the axle hole of the first suspension point cross beam 100 and the axle hole of the second suspension point cross beam 200, and the support 400 can be used for constructing the better support 400 for the first suspension point cross beam 100 and the second suspension point cross beam 200, thereby effectively eliminating the influence of uncontrollable factors such as assembly deviation and welding deformation on the relative position and precision of the axle hole of the first main body structure, thereby achieving the purpose of controlling the key precision requirement of the component; finally, by removing the dummy shaft 300, the dummy shaft 300 can be prevented from affecting the use of the shaft hole of the first hoisting point beam 100 and the shaft hole of the second hoisting point beam 200 on the first main body structure.
In some embodiments, between S4 and S5 further comprises:
s41: the first body structure is left to stand and S5 is performed after welding, flaw detection, annealing correction, and stress release.
It is right first major structure stews for assembly, welding, flaw detection, annealing correction and stress release back make first major structure demolish again after being stable, thereby can avoid welding, flaw detection, annealing correction and stress to the precision in the shaft hole of first hoisting point crossbeam 100 and the shaft hole of second hoisting point crossbeam 200 on the first major structure causes the influence, keeps through false axle 300 to welding, flaw detection, annealing correction and stress release back, confirms demolish again after first major structure is basically stable.
In some embodiments, the S1 is preceded by:
s01: and acquiring the associated data of the first hoisting point beam 100 and the second hoisting point beam 200 according to the processing drawing.
In the machining drawing, the size of the first hoisting point beam 100, the size of the second hoisting point beam 200, the size of the shaft hole of the first hoisting point beam 100, the position of the shaft hole of the second hoisting point beam 200, the position of the shaft hole of the first hoisting point beam 100, the distance between the shaft hole of the first hoisting point beam 100 and the shaft hole of the second hoisting point beam 200, the concentricity of the first hoisting point beam 100 and the second hoisting point beam 200, and the like are marked, so that when machining is performed, corresponding accuracy can be achieved as required; and then fixed by the dummy shaft 300 to ensure the accuracy of the first and second suspension point beams 100 and 200.
In some implementations, the S01 is preceded by:
s001: reserving preset machining allowance at the positions of the first hoisting point beam 100 and the second hoisting point beam 200, where shaft holes need to be machined;
s002: and processing the preset machining allowance positions reserved for the first hoisting point beam 100 and the second hoisting point beam 200 according to a machining drawing to generate corresponding shaft holes.
The preset machining allowance is reserved at the positions of the first hoisting point beam 100 and the second hoisting point beam 200, where the shaft holes need to be machined, so that the precision of the shaft holes generated by subsequent machining can be ensured.
In some implementations, the S4 is specifically:
the other end of the dummy shaft 300 penetrates into the shaft hole of the mating second hoisting point beam 200, adjusts the relative position of the first hoisting point beam 100 and the second hoisting point beam 200, and fixes the relative position of the first hoisting point beam 100 and the second hoisting point beam 200 through the support 400 to form a first main body structure.
One end of the dummy shaft 300 is installed in the shaft hole of the first hoisting point beam 100, the relative positions of the first hoisting point beam 100 and the second hoisting point beam 200 are adjusted to maintain a good concentricity therebetween, and then the dummy shaft is fixedly welded to the relative positions of the first hoisting point beam 100 and the second hoisting point beam 200 through the support 400, so that the relative positions of the first hoisting point beam 100 and the second hoisting point beam 200 are ensured, the distance between the first hoisting point beam 100 and the second hoisting point beam 200 can be sufficiently fixed, and the precision of the distance between the shaft hole of the first hoisting point beam 100 and the shaft hole of the second hoisting point beam 200 is ensured.
In some embodiments, two supports 400 are provided, each being disposed parallel to the dummy shaft 300 and fixedly installed at opposite positions of the first and second lifting point beams 100 and 200;
the support 400 is a cross bar, one end of which is welded to the first hoisting point cross beam 100 and the other end of which is welded to the second hoisting point cross beam 200, so that the function of the support 400 can be enhanced and the accuracy of the distance between the shaft hole of the first hoisting point cross beam 100 and the shaft hole of the second hoisting point cross beam 200 can be ensured.
In some embodiments, the S5 is specifically:
the dummy shaft 300 is cut off from the middle of the first and second suspension point beams 100 and 200 of the first main body structure.
The dummy shaft 300 is removed by cutting between the first lifting point beam 100 and the second lifting point beam 200, so that the influence of the transverse distance of the dummy shaft 300 on the distance between the shaft hole of the first lifting point beam 100 and the shaft hole of the second lifting point beam 200 is avoided when the dummy shaft is removed.
In some embodiments, the first members may be two groups, and the second suspension point cross beam 200 is a main suspension beam carrying pole structure, wherein after one group of first members is connected to one side of the main suspension beam carrying pole structure through a dummy shaft 300 and two supports 400, the first members are welded to one side of the main suspension beam carrying pole structure by welding, and the other first members are connected to the other side of the main suspension beam carrying pole structure through a dummy shaft 300 and two supports 400, and the other first members are welded to the other side of the main suspension beam carrying pole structure by welding.
The above-mentioned embodiments are only used for illustrating the technical solutions of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (7)
1. A method for controlling the precision of a shaft hole of a main body of a hanging beam is characterized by comprising the following steps:
s1: acquiring associated data of a first hoisting point beam and a second hoisting point beam, wherein the associated data comprises the distance between a shaft hole of the first hoisting point beam and a shaft hole of the second hoisting point beam, the sizes of the shaft holes of the first hoisting point beam and the second hoisting point beam and the concentricity of the first hoisting point beam and the second hoisting point beam;
s2: preparing a dummy shaft and a support according to the correlation data;
s3: installing one end of the dummy shaft in a shaft hole of the first hoisting point beam, and installing one end of the support on the first hoisting point beam, so that the dummy shaft, the support and the first hoisting point beam form a first member;
s4: connecting the first member with the second hoisting point beam, wherein the first hoisting point beam is connected with the second hoisting point beam, the other end of the dummy shaft is arranged in a shaft hole of the second hoisting point beam, and the other end of the support is arranged on the second hoisting point beam to form a first main body structure;
s5: removing the dummy shaft within the first body structure.
2. The method for controlling the accuracy of the axle hole of the suspension beam main body according to claim 1, wherein between the steps S4 and S5, the method further comprises:
s41: the first body structure is left to stand and S5 is performed after welding, flaw detection, annealing correction, and stress release.
3. The method for controlling the accuracy of the shaft hole of the suspension beam main body according to claim 1, wherein the step S1 is preceded by the step of:
s01: and acquiring the associated data of the first hoisting point beam and the second hoisting point beam according to the processing drawing.
4. The method for controlling the accuracy of the shaft hole of the suspension beam main body according to claim 3, wherein the step S01 is preceded by the step of:
s001: reserving preset machining allowance at the positions of the first hoisting point cross beam and the second hoisting point cross beam where shaft holes need to be machined;
s002: and processing the preset machining allowance positions reserved by the first hoisting point cross beam and the second hoisting point cross beam according to a processing drawing to generate corresponding shaft holes.
5. The method for controlling the accuracy of the shaft hole of the suspension beam main body according to claim 4, wherein the step S4 is specifically as follows:
the other end of the dummy shaft penetrates into a shaft hole of the matched second hoisting point cross beam, the relative positions of the first hoisting point cross beam and the second hoisting point cross beam are adjusted, and the first hoisting point cross beam and the second hoisting point cross beam are welded together by supporting and fixing the relative positions of the first hoisting point cross beam and the second hoisting point cross beam to form a first main body structure.
6. The method for controlling the accuracy of the shaft hole of the hanging beam main body according to claim 5, wherein the number of the supports is two, the two supports are arranged in parallel with the dummy shaft and are fixedly arranged on the relative positions of the first hanging point cross beam and the second hanging point cross beam.
7. The method for controlling the accuracy of the shaft hole of the suspension beam main body according to claim 6, wherein the step S5 is specifically as follows:
and cutting off and detaching the dummy shaft from the middle of the first hoisting point beam and the second hoisting point beam of the first main body structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111112966.0A CN113664480B (en) | 2021-09-22 | 2021-09-22 | Method for controlling precision of shaft hole of main body of hanging beam |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111112966.0A CN113664480B (en) | 2021-09-22 | 2021-09-22 | Method for controlling precision of shaft hole of main body of hanging beam |
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| CN113664480B CN113664480B (en) | 2022-10-21 |
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| CN113664480B (en) | 2022-10-21 |
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