Test tool for suspension arm

Abstract

The utility model provides a testing tool for a suspension arm, which is used for detecting the root before the suspension arm of a crane is installed, and comprises a base, a fixing piece and more than two testing pieces, the fixing piece is arranged perpendicular to the base, more than one through hole matched with an installation hole on a lifting lug is arranged on the fixing piece along the length direction of the fixing piece, and the testing pieces are arranged on the fixing piece. The fixing part comprises more than one group of fixing assemblies, one group of fixing assemblies comprises a first fixing part and a second fixing part which are arranged in parallel, the distance between the first fixing part and the second fixing part in one group of fixing assemblies is matched with the thickness of the lifting lug, and the diameter of the test piece is matched with the diameter of a mounting hole in the lifting lug; the length of the test piece is larger than the distance between the first fixing piece and the second fixing piece in one set of fixing assembly, and the through hole of the first fixing piece and the through hole of the second fixing piece in one set of fixing assembly are located on the same axis. According to the utility model, the mounting hole at the root part of the suspension arm can be detected, so that whether the root part of the suspension arm deforms or not is judged, and the mounting process of the suspension arm is time-saving and labor-saving.

Description

Technical Field

[0001] The utility model relates to the technical field of boom detection, in particular to a test tooling for a boom. Background Art

[0002] Ship cranes are mainly applied to ports, docks and ships. The hoisting mechanism controls the boom to lift and move goods. The boom is equipped with a hoisting mechanism, including hoisting machinery, winches and hook cables, etc. These components work together to enable the ship crane to control the boom to efficiently and safely complete the loading and unloading tasks of goods in various working environments, such as Figure 1 For the assembled boom, Figure 2 For the root ear 5' of the boom, and a processed pin hole is provided on the ear 5'.

[0003] Before operation, the boom needs to be lifted, and then installed on the slewing platform of the ship through a pin passing through the pin hole. However, during the transportation of the boom to the installation destination, due to objective factors such as collisions caused by road bumps or uneven forces during the installation hoisting process, the pin holes on the ears are deformed. If the boom pin holes are not detected before installation, and it is only found that the installation cannot be achieved due to the coaxiality problem of the pin holes when the boom is lifted to the slewing platform for installation, this makes the installation of the boom time-consuming and laborious. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a test tooling for a boom, which detects the installation holes at the root of the boom before the boom is installed on the slewing platform, so as to determine whether the installation holes at the root of the boom are deformed, thereby making the installation process of the boom time-saving and labor-saving.

[0005] To achieve the above purpose, a test tooling for a boom detects the root before the boom is installed, including a base, a fixing member and more than two test members. The fixing member is vertically arranged with the base. One or more through holes matching the installation holes on the ears are arranged along the length direction of the fixing member. The fixing member includes more than one group of fixing components. One group of fixing components includes a fixing member one and a fixing member two arranged in parallel. The distance between the fixing member one and the fixing member two in one group of fixing components matches the thickness of the ear. The diameter of the test member matches the diameter of the installation hole on the ear. The length of the test member is greater than the distance between the fixing member one and the fixing member two in one group of fixing components. The through holes of the fixing member one and the fixing member two in one group of fixing components are on the same axis.

[0006] With the above settings, by making the diameters of the through holes on the fixing member and the test member match the diameter of the mounting hole, and at the same time ensuring that the through holes on the fixing member are on the same axis, after the lug is placed between the first fixing member and the second fixing member and the mounting hole and the through hole are at the same height, it can be determined whether the mounting holes of the two lugs are coaxially arranged by whether both test members can completely pass through the through hole and the mounting hole from one side of the second fixing member to the other side of the first fixing member, and further determine whether the mounting holes on the lug meet the installation requirements, thus making the installation process of the boom time-saving and labor-saving, and at the same time having a simple structure.

[0007] Furthermore, two sets of fixing components are provided, and each set of fixing components is correspondingly arranged with the lug of the boom. The distance between the inner side walls of the two first fixing members in the two sets of fixing components is equal to the distance between the inner side walls of the two lugs.

[0008] With the above settings, by providing two sets of fixing components, it is convenient to test the mounting holes of the two lugs, and the distance between the two lugs can also be limited and tested by setting the distance between the two first fixing members. If the distance between the lugs changes, the lugs cannot be installed between the first fixing members of the fixing components, thus realizing the test.

[0009] Furthermore, one end of the fixing member is fixedly connected to the base, and the other end of the fixing member extends vertically outward and upward from the base.

[0010] With the above settings, it is ensured that the fixing member is vertically arranged with respect to the base, which is convenient for testing.

[0011] Furthermore, the centers of the through holes on the same fixing member are on the same vertical line, and there is a spacing between the through holes.

[0012] With the above settings, different test members can pass through different through holes, and thus the lugs at the root of different booms can be tested.

[0013] Furthermore, the height of the first fixing member and the second fixing member in each set of fixing components is greater than the distance between the first fixing member and the second fixing member.

[0014] With the above settings, after the lug is placed between the first fixing member and the second fixing member, it can play a limiting role on the lug in the horizontal direction.

[0015] Furthermore, the test member is a shaft, and one end of the test member protrudes outward along the radial direction to form a limiting portion.

[0016] With the above settings, after the test member passes through the fixing member and the lug from one side, the movement of the test member can be restricted to prevent the situation of passing through during the test process. Description of the Drawings

[0017] Figure 1It is a schematic structural diagram of a boom in the prior art.

[0018] Figure 2 It is an enlarged view of position A.

[0019] Figure 3 It is a schematic diagram of the present utility model for testing a lifting lug.

[0020] Figure 4 It is a schematic structural diagram of an embodiment of the present utility model.

[0021] Figure 5 It is a schematic structural diagram of another embodiment of the present utility model.

[0022] Figure 6 It is a side view of another embodiment of the present utility model. Specific embodiments

[0023] The following further describes the present utility model in detail with reference to the accompanying drawings and specific embodiments.

[0024] As Figures 1 to 6 shown, a test tooling for a boom detects the root before the boom is installed, including a base 1, a fixing member, and two or more test members 2. The fixing member is vertically arranged with respect to the base 1. One end of the fixing member is fixedly connected to the base 1, and the other end of the fixing member extends outward and upward perpendicular to the base 1. One or more through holes 3 matching the mounting holes (not marked in the figure) on the lifting lug 5 are provided along the length direction of the fixing member. The centers of the through holes 3 on the same fixing member are on the same vertical line 4, and there is a spacing between the through holes 3. The fixing member includes more than one set of fixing components, and each set of fixing components includes a fixing member one 51 and a fixing member two 52 arranged in parallel.

[0025] In one embodiment, as Figure 3 and 4As shown in the figure, the number of through holes 3 on the first fixing member 51 and the second fixing member 52 is one each, and the number of the first fixing member 51 and the second fixing member 52 is two each. One first fixing member 51 and one second fixing member 52 are arranged opposite to each other to form a set of fixing components. The through holes 3 of the two first fixing members 51 and the through holes 3 of the two second fixing members 52 are all on the same axis. The distance between the first fixing member 51 and the second fixing member 52 in a set of fixing members matches the thickness of the lifting lug 5. Specifically, the distance d1 from the inner side of the first fixing member 51 to the inner side of the second fixing member 52 is equal to the thickness d2 of the lifting lug 5. The distance between the two first fixing members 51 matches the distance between the two lifting lugs 5. Specifically, the distance d3 from the inner side of one first fixing member 51 to the inner side of the other first fixing member 51 is equal to the distance d4 between the inner sides of the two lifting lugs 5. The diameter of the test piece 2 matches the diameter of the mounting hole on the lifting lug 5. The length of the test piece 2 is greater than the distance between the first fixing member 51 and the second fixing member 52, ensuring that the test piece 2 can penetrate from the first fixing member 51 to the second fixing member 52, thereby determining that the mounting holes of the lifting lug 5 meet the coaxial requirement. The test piece 2 is a shaft, and one end of the test piece 2 protrudes outward along the radial direction to form a limiting portion 21, so that after the test piece 2 passes through the fixing member and the lifting lug 5 from one side, the continued movement of the test piece 2 can be restricted.

[0026] In another embodiment, as Figure 5 and 6 shown, the number of through holes 3 on the first fixing member 51 and the second fixing member 52 is two each and the diameters of the two through holes 3 are different. By passing different test pieces 2 through different through holes 3, the lifting lugs 5 at the roots of different lifting arms can be tested.

[0027] In yet another embodiment, one test piece 2 is provided in two sets of fixing components. The test piece 2 is a shaft, and the test is realized by inserting the test piece 2 into the two sets of fixing components.

[0028] The test process is as follows:

[0029] After the lifting arm is placed on the lifting platform, the base 1 of the test tooling is horizontally placed on the lifting platform of the lifting vehicle. The position of the test tooling is adjusted by the lifting vehicle so that the test tooling is located below the lifting lug 5. The height is adjusted by the lifting platform so that the two lifting lugs 5 are embedded between the first fixing member 51 and the second fixing member 52. When the through holes 3 of the first fixing member 51 and the second fixing member 52 are at the same height as the mounting holes of the lifting lug 5, then stop lifting. The two test pieces 2 are passed through the through holes 3 and the mounting holes from one side of the second fixing member 52 and penetrated to one side of the first fixing member 51 to detect whether the mounting holes of the two lifting lugs 5 are coaxial. If both test pieces 2 can completely pass through the through holes 3 and the mounting holes from one side of the second fixing member 52 and penetrate to one side of the first fixing member 51, it is determined that the mounting holes of the two lifting lugs 5 are coaxial and meet the installation requirements; otherwise, they do not meet the installation requirements.

Claims

1. A test fixture for a boom, used to detect the root of the boom before installation, characterized in that: It includes a base, a fixing part and more than two test pieces, the fixing part is vertically arranged with the base, the fixing part is provided with more than one through hole matching with the mounting hole on the lifting ear along the length direction of the fixing part, the fixing part includes more than one set of fixing components, one set of fixing components includes a fixing part 1 and a fixing part 2 arranged in parallel, the distance between the fixing part 1 and the fixing part 2 in one set of fixing components matches the thickness of the lifting ear, the diameter of the test piece matches the diameter of the mounting hole on the lifting ear, the length of the test piece is greater than the distance between the fixing part 1 and the fixing part 2 in one set of fixing components, and the through hole of the fixing part 1 and the through hole of the fixing part 2 in one set of fixing components are on the same axis.

2. A test fixture for a suspension arm according to claim 1, characterized in that: Two groups of fixing components are arranged, each group of fixing components is arranged corresponding to the lifting ears of the lifting arm, and the distance between the inner side walls of two fixing parts in the two groups of fixing components is equal to the distance between the inner side walls of the two lifting ears.

3. The test fixture for a suspension arm according to claim 1, characterized in that: One end of the fixing piece is fixedly connected to the base, and the other end of the fixing piece is perpendicular to the base and extends outward and upward.

4. The test fixture for a suspension arm according to claim 2, characterized in that: The centers of the through holes on the same fixing member are on the same vertical line, and there is a spacing between the through holes.

5. The test fixture for a suspension arm according to claim 1, characterized in that: The height of the fixing member 1 and the fixing member 2 in each group of fixing components is greater than the distance between the fixing member 1 and the fixing member 2.

6. The test fixture for a suspension arm according to claim 1, characterized in that: The test piece is a shaft, and one end of the test piece protrudes outward along the radial direction to form a limiting portion.

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