Test bed for testing walking device of giant gantry crane

Abstract

The utility model relates to a test bed for testing a giant gantry crane walking device, belongs to the field of test auxiliary tools, and aims to improve the safety and reliability of the test. Comprising a square supporting platform, a test tank body is arranged in the center of the supporting platform, the bottom end of the test tank body is welded to the supporting platform, and a material opening is formed in the top end of the test tank body; four walking device mounting positions are arranged at the bottom end of the supporting platform and distributed at the four corners of a square, and the center of the square defined by the four walking device mounting positions is aligned to the center of the supporting platform. Sand and other internal media are filled in the test tank body to serve as test loads, and the purpose of adjusting the test loads is achieved through the amount of the filled internal media. Compared with a traditional mode that a cement block provides load, the problem that the test tank body and a medium in the test tank body slide on the supporting platform is solved, the walking device is protected, the safety is higher, meanwhile, it is guaranteed that the test is conducted smoothly, and the test efficiency is improved.

Description

Technical Field

[0001] The utility model belongs to the field of test auxiliary tools, in particular to a test bench for testing a walking device of a giant gantry crane. Background Art

[0002] The purpose of testing the giant gantry crane's traveling device is to verify whether its lifting capacity and traveling speed meet the design requirements. The lifting capacity of each traveling device is about 500t, so the safety and feasibility of the test must be guaranteed when testing the giant gantry crane's traveling device.

[0003] Traditionally, the lifting capacity and travel speed tests of the traveling device are carried out using a large independent platform structure. The large independent platform is an entire test platform assembled from I-beams and steel plates. Cement blocks are used as test load blocks. The test load blocks are stacked on the platform in an alternating manner. Frequent slippage of cement blocks causes inconsistent loads on the traveling devices of the giant gantry cranes, resulting in test failures or damage to the traveling devices of the giant gantry cranes. Utility Model Content

[0004] The utility model aims to provide a test bench for testing a giant gantry crane traveling device, so as to improve the safety and reliability of the test.

[0005] The technical solution adopted by the utility model is: a test bench for testing the walking device of a giant gantry crane, comprising a supporting platform arranged in a square shape, a testing tank body being arranged at the center of the supporting platform, the bottom end of the testing tank body being welded to the supporting platform, and a material opening being arranged at the top; four walking device installation positions are arranged at the bottom end of the supporting platform, the four walking device installation positions are distributed at the four corners of the square, and the center of the square surrounded by the four walking device installation positions is aligned with the center of the supporting platform.

[0006] Furthermore, four piers are arranged at the bottom end of the supporting platform, and the four piers are located in a square area surrounded by four walking device installation positions, and the center of the square surrounded by the four piers is aligned with the center of the supporting platform.

[0007] Furthermore, the end face of the pier is trapezoidal.

[0008] Furthermore, the support platform includes a bottom support frame, an upper support frame and an independent platform; the bottom support frame and the upper support frame are in the shape of long strips, and both include an upper flat plate, a lower bottom plate and a support frame between the upper flat plate and the lower bottom plate; at least two of the bottom support frames are arranged side by side, and several of the upper support frames cross and intersect with the bottom support frame and are arranged side by side on the bottom support frame at equal intervals, and the lower bottom plate of the upper support frame is fixedly connected to the upper flat plate of the bottom support frame; the bottom surface of the independent platform is supported on the upper flat plate of the upper support frame, and the independent platform is fixedly connected to the upper support frame; the bottom end of the test tank body is welded to the top surface of the independent platform.

[0009] Furthermore, the support frame includes two vertical plates arranged side by side between the upper flat plate and the lower bottom plate, and the vertical plates extend longitudinally from one end of the upper flat plate to the other end; two C-shaped grooves extending longitudinally are formed by the upper flat plate, the lower bottom plate and the vertical plates, and a plurality of C-shaped reinforcing ribs are evenly arranged longitudinally in the C-shaped grooves.

[0010] Furthermore, the middle section of the bottom support frame along its extension direction is an isosceles trapezoid that is wider at the top and narrower at the bottom.

[0011] Furthermore, one of the independent platforms is equipped with one of the test tanks.

[0012] Furthermore, a plurality of ribs are evenly arranged around the test tank body between the outer wall of the test tank body and the top surface of the independent platform.

[0013] Furthermore, a load-bearing support frame is respectively arranged on both sides of the upper support frame, and the two load-bearing support frames are symmetrical with respect to the upper support frame.

[0014] The beneficial effect of the utility model is as follows: the utility model adopts a test tank body filled with sand and other internal media as the test load, and the purpose of adjusting the test load is achieved by the amount of the internal media filled. Since the sand and other internal media are filled into the test tank body, and the bottom end of the test tank body is welded to the center of the support platform, it not only ensures that the load acts on the center of the test bench for the giant gantry crane walking device test, so that the load acting on the walking device installed at various walking device installation positions tends to be consistent, and, compared with the traditional cement block to provide load, the test tank body and the internal medium will not appear on the support platform The problem of slippage plays a protective role on the walking device, has higher safety, and at the same time ensures the smooth progress of the test, which is conducive to improving the test efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the structure of the utility model;

[0016] Figure 2 This is the front view of the utility model;

[0017] Figure 3 It is the left view of the utility model;

[0018] Figure 4 It is a top view of the utility model;

[0019] Figure 5 It is a schematic diagram of a bottom support frame, an upper support frame or a load-bearing support frame.

[0020] In the figure, there are supporting platform 1, bottom supporting frame 11, upper flat plate 11A, lower bottom plate 11B, vertical plate 11C, C-shaped reinforcing rib 11D, upper supporting frame 12, independent platform 13, load-bearing supporting frame 14, test tank body 2, pier 3, rib plate 4, and walking device 5. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and embodiments:

[0022] In the present invention, the terms "lateral", "vertical", "longitudinal", "above", "below", "top", "top", "bottom", "bottom", "inner end" and "outer end" indicate directions or positional relationships based on the attached Figure 1 The orientation or positional relationship shown is only for the convenience of describing the present invention, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0023] Test bench for giant gantry crane traveling device test, such as Figure 1-Figure 4 As shown, it includes a square-arranged support platform 1, a test tank body 2 is arranged in the center of the support platform 1, the bottom end of the test tank body 2 is welded to the support platform 1, and a material port is arranged at the top; four walking device installation positions are arranged at the bottom end of the support platform 1, and the four walking device installation positions are distributed at the four corners of the square, and the center of the square surrounded by the four walking device installation positions is aligned with the center of the support platform 1.

[0024] Among them, the traveling device installation position is used to install the traveling device 5. The four traveling device installation positions are distributed at the four corners of the square, which means that the area surrounded by the four traveling device installation positions is square, and one traveling device installation position is distributed at each of the four corners of the square, which is consistent with the distribution state of the traveling device when the giant gantry crane is in use, and can better ensure the accuracy of the test.

[0025] The test tank body 2 is used to load sand and other internal media as test loads, and the purpose of adjusting the test load is achieved by the amount of internal media loaded. Since sand and other internal media are loaded into the test tank body 2, and the bottom end of the test tank body 2 is welded to the center of the support platform 1, it not only ensures that the load acts on the center of the test bench for the giant gantry crane walking device test, but also makes the load acting on the walking device 5 installed on various walking device installation positions tend to be consistent. Moreover, compared with the traditional cement block to provide load, the test tank body 2 and the internal medium will not have the problem of slipping on the support platform 1, which plays a protective role for the walking device 5, has higher safety, and at the same time ensures the smooth progress of the test, which is conducive to improving the test efficiency. When the medium in the test tank body 2 is determined, the bearing capacity can be calculated according to the medium density and the medium filling amount in the test tank body 2, and the load can be better controlled by the medium amount.

[0026] In order to facilitate the replacement of the walking device 5 after the test, preferably, four piers 3 are provided at the bottom end of the support platform 1, and the four piers 3 are located in the square area surrounded by the four walking device installation positions, and the center of the square surrounded by the four piers 3 is aligned with the center of the support platform 1. During the test, the four piers 3 are lifted off the test support surface, and the walking device 5 walks on the test support surface. When the walking device 5 needs to be replaced after the test, the four piers 3 are lowered and supported on the test support surface, and the walking device 5 is suspended in the air for replacement. The piers 3 can be a hydraulic jack structure.

[0027] In order to increase the bearing capacity of the buttress 3, the end surface of the buttress 3 is trapezoidal.

[0028] The support platform 1 can directly adopt a whole independent platform, which is a whole body welded by the top plate, the bottom plate and the middle I-beam. In this embodiment, the support platform 1 includes a bottom support frame 11, an upper support frame 12 and an independent platform 13;

[0029] like Figure 5 As shown, the bottom support frame 11 and the upper support frame 12 are in the shape of long strips, and both include an upper flat plate 11A, a lower bottom plate 11B, and a support frame between the upper flat plate 11A and the lower bottom plate 11B;

[0030] At least two of the bottom support frames 11 are arranged side by side, and several of the upper support frames 12 cross the bottom support frame 11 and are arranged side by side on the bottom support frame 11 at equal intervals, and the lower bottom plate 11B of the upper support frame 12 is fixedly connected to the upper flat plate 11A of the bottom support frame 11;

[0031] The bottom surface of the independent platform 13 is supported on the upper plate 11A of the upper support frame 12, and the independent platform 13 is fixedly connected to the upper support frame 12;

[0032] The bottom end of the test tank 2 is welded to the top surface of the independent platform 13 .

[0033] In the setting of this structure, the independent platform 13 is used to install the test tank body 2, instead of stacking cement blocks. The size of the independent platform 13 can be determined according to the size of the test tank body 2, so that the size of the independent platform 13 can be minimized. The independent platform 13 is welded with steel plates, and a support plate is used inside for reinforcement and compensation. The support plate is cut on-site with steel plates and connected to the platform by spot welding. The independent platform 13, the bottom support frame 11 and the upper support frame 12 can be made separately and then welded and assembled. The structure of the support platform 1 is that when the independent platform 13 is supported by the upper support frame 12, and the upper support frame 12 is supported on the bottom support frame 11, its strength and stability are enhanced.

[0034] The support frame can be an I-beam, a square frame, etc. In this embodiment, the support frame includes two vertical plates 11C arranged side by side between the upper flat plate 11A and the lower bottom plate 11B, and the vertical plates 11C extend from one end of the upper flat plate 11A to the other end in the longitudinal direction; the upper flat plate 11A, the lower bottom plate 11B and the vertical plates 11C surround two C-shaped grooves extending in the longitudinal direction, and a plurality of C-shaped reinforcing ribs 11D are evenly arranged in the C-shaped grooves along the longitudinal direction. A rectangular hollow cavity is formed between the two vertical poles 11C, the upper flat plate 11A and the lower bottom plate 11B, so that the frame formed by them has high strength and light weight, and then reinforced by the C-shaped reinforcing ribs 11D, the strength of the bottom support frame 11, the upper support frame 12, etc. is further ensured. By welding the vertical plates 11C with the upper flat plate 11A and the lower bottom plate 11B, the material of the vertical plates 11C is easy to obtain and the cost is low. The C-shaped reinforcing ribs 11D can be directly cut from the plate, and the material is also easy to obtain. Two C-shaped reinforcing ribs 11D in the C-shaped grooves extending in the longitudinal direction are symmetrically arranged with respect to the rectangular hollow cavity and are fully welded to the corresponding plates.

[0035] The bottom support frame 11 is used as a bearing device of the overall structure when the giant gantry crane traveling device is tested, installed or dismantled. In order to improve its bearing capacity, preferably, the middle section of the bottom support frame 11 along its extension direction is an isosceles trapezoid that is wide at the top and narrow at the bottom.

[0036] Multiple test tanks 2 can share one independent platform 13, but in order to further facilitate manufacturing and avoid deformation of the independent platform 13, preferably, one independent platform 13 is configured with one test tank 2. This configuration reduces the size of a single independent platform 13 and facilitates the independent platform 13 to be transported to the upper support frame 12 for position adjustment and welding. The size of the independent platform 13 is reduced, and only one test tank 2 is welded on it, which can reduce the risk of deformation caused by welding.

[0037] In order to improve the overall reinforcement of the connection between the test tank body 2 and the independent platform 13 , preferably, a plurality of ribs 4 are evenly arranged around the test tank body 2 between the outer wall of the test tank body 2 and the top surface of the independent platform 13 .

[0038] In order to further ensure the overall stability of the test platform, a load-bearing support frame 14 is respectively arranged on both sides of the upper support frame 12, and the two load-bearing support frames 14 are symmetrical about the upper support frame 12. When the sand level in the test tank 2 is high and the force needs to be balanced, concrete pads can be placed on the load-bearing support frames 14 for balancing, which can not only make the walking process of the walking device stable, but also share the overall test bearing capacity to minimize the sand level in the test tank 2.

Claims

1. Test bench for giant gantry crane traveling device test, characterized by: The invention comprises a supporting platform (1) arranged in a square shape, wherein a test tank body (2) is arranged at the center of the supporting platform (1), the bottom end of the test tank body (2) is welded to the supporting platform (1), and a material opening is arranged at the top end; four walking device installation positions are arranged at the bottom end of the supporting platform (1), the four walking device installation positions are distributed at the four corners of the square, and the center of the square surrounded by the four walking device installation positions is aligned with the center of the supporting platform (1).

2. The test bench for testing the traveling device of a giant gantry crane according to claim 1, characterized in that: Four piers (3) are arranged at the bottom end of the support platform (1), and the four piers (3) are located in a square area surrounded by four walking device installation positions, and the center of the square surrounded by the four piers (3) is aligned with the center of the support platform (1).

3. The test bench for testing the traveling device of a giant gantry crane according to claim 2, characterized in that: The end surface of the buttress (3) is trapezoidal.

4. The giant gantry crane traveling device test bench according to any one of claims 1 to 3, characterized in that: The support platform (1) comprises a bottom support frame (11), an upper support frame (12) and an independent platform (13); The bottom support frame (11) and the upper support frame (12) are in the shape of long strips, and both comprise an upper flat plate (11A), a lower bottom plate (11B), and a support frame between the upper flat plate (11A) and the lower bottom plate (11B); At least two of the bottom support frames (11) are arranged side by side, a plurality of the upper support frames (12) cross the bottom support frame (11) and are arranged side by side on the bottom support frame (11) at equal intervals, and the lower bottom plate (11B) of the upper support frame (12) is fixedly connected to the upper flat plate (11A) of the bottom support frame (11); The bottom surface of the independent platform (13) is supported on the upper plate (11A) of the upper support frame (12), and the independent platform (13) is fixedly connected to the upper support frame (12); The bottom end of the test tank body (2) is welded to the top surface of the independent platform (13).

5. The test bench for testing the traveling device of a giant gantry crane as claimed in claim 4, characterized in that: The support frame comprises two vertical plates (11C) arranged side by side between an upper flat plate (11A) and a lower bottom plate (11B), wherein the vertical plates (11C) extend longitudinally from one end of the upper flat plate (11A) to the other end; two C-shaped grooves extending longitudinally are formed by the upper flat plate (11A), the lower bottom plate (11B) and the vertical plates (11C), and a plurality of C-shaped reinforcing ribs (11D) are evenly arranged in the C-shaped grooves along the longitudinal direction.

6. The test bench for testing the traveling device of a giant gantry crane as claimed in claim 4, characterized in that: The middle section of the bottom support frame (11) along its extension direction is in an isosceles trapezoidal shape that is wider at the top and narrower at the bottom.

7. The test bench for testing the traveling device of a giant gantry crane according to claim 4, characterized in that: One of the independent platforms (13) is equipped with one of the test tanks (2).

8. The test bench for testing the traveling device of a giant gantry crane according to claim 7, characterized in that: A plurality of ribs (4) are evenly arranged around the test tank body (2) between the outer wall of the test tank body (2) and the top surface of the independent platform (13).

9. The test bench for testing the traveling device of a giant gantry crane according to claim 4, characterized in that: A load-bearing support frame (14) is respectively arranged on both sides of the upper support frame (12), and the two load-bearing support frames (14) are symmetrical with respect to the upper support frame (12).

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