Positioning device and method for assembling main-end beam of gantry crane trolley structural member

Abstract

The application discloses a gantry crane trolley structural member main-end beam splicing point positioning device and splicing point method, and belongs to the technical field of gantry crane manufacturing. The device comprises a supporting and positioning adjusting mechanism and a supporting leg, the supporting and positioning adjusting mechanism is arranged on both sides of the supporting leg, and comprises a supporting adjusting mechanism, a bottom plate and a positioning clamping code; the supporting adjusting mechanism is composed of a supporting frame I, a supporting frame II, a supporting horizontal plate, an adjusting bolt and a falling prevention bolt. The positioning method comprises the following steps: placing a mechanism, hoisting a main beam, adjusting and fixing, hoisting an end beam and fixing, adjusting to be flush, and locking the falling prevention bolt, so that the splicing point positioning is completed. The application has the advantages of high universality, no need of special tooling, convenient adjustment, simple structure, cost reduction, splicing point efficiency and precision improvement.

Description

Technical Field

[0001] This invention relates to the field of gantry crane manufacturing technology, specifically to a gantry crane trolley structural component main-end beam splicing positioning device and splicing method. Background Technology

[0002] As a core lifting equipment in the industrial field, gantry cranes have undergone three stages of development: the realization of basic functions, the automation upgrade, and the intelligent transformation. The trolley, as the core actuator of the gantry crane, has evolved technologically around drive methods and positioning accuracy, progressing from mechanical drive to electrical drive, and now to servo control.

[0003] In the manufacturing process of gantry cranes, the assembly accuracy of the trolley structural components directly affects the overall performance of the machine, with the connection between the main beam and the end beams being the core challenge. Currently, existing technologies suffer from several problems: dedicated tooling fixtures have poor versatility and high changeover costs; traditional assembly methods are difficult to adjust, relying on wedge blocks and jacks, which cannot guarantee safety and result in long assembly cycles; and adaptive tooling equipment is highly complex and expensive to maintain. Therefore, a new positioning device is urgently needed to solve these problems. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, this invention addresses the problems of poor versatility and high replacement cost of special tooling, the difficulty and long cycle of adjustment of traditional splicing methods, and the complexity and high maintenance cost of adaptive tooling equipment. It provides a gantry crane trolley main-end beam splicing positioning device that is simple in structure, highly versatile, easy to adjust, low in cost and low in maintenance cost.

[0005] The present invention is achieved through the following technical solution: a main-end beam splicing positioning device for a gantry crane trolley structural component, comprising a support and positioning adjustment mechanism and support legs; the support and positioning adjustment mechanism is disposed on both sides of the support legs; the support and positioning adjustment mechanism includes a support adjustment mechanism, a base plate and positioning clips; The support adjustment mechanism includes support frame I, support frame II, support cross plate, adjusting bolts, and anti-fall bolts; support frame I and support frame II are welded to the base plate, and the support cross plate is connected to support frame I and support frame II by bolts; the positioning clip is connected to the support adjustment mechanism and is used to fix the end beam; the support legs are used to support the main beam structure.

[0006] The support frame I includes a support frame base plate I, a support frame column I, a support frame stiffener I, a support plate I, and a support frame stiffener II; the support frame II includes a support frame base plate II, a support frame column II, a support frame stiffener III, a support plate II, and a support frame stiffener IV; the support frame column I is mounted on the support frame base plate I, and the support frame column I and the support frame base plate I are fixed by the support frame stiffener I; the support plate I is mounted on the support frame column I and supported by the support frame stiffener II; the support frame column II is mounted on the support frame base plate II, and the support frame column II and the support frame base plate II are fixed by the support frame stiffener III; the support plate II is mounted on the support frame column II and supported by the support frame stiffener IV.

[0007] The adjusting bolts are installed on support plate I and support plate II to adjust and position the support cross plate. The anti-fall bolts are installed in the bolt mounting holes of support frame I and support frame II to connect the support cross plate to support frame I and support frame II.

[0008] The support plates I and II of the support frame I and support frame II have different directions.

[0009] The support frame I and support frame II are provided with three bolt mounting holes for placing anti-fall bolts.

[0010] This invention also provides a method for positioning the main-end beam splice of a gantry crane trolley structural component, characterized by comprising the following steps: Step 1: Place the support and positioning adjustment mechanism and support legs on the ground; Step 2: Use a crane to lift the trolley main beam structure, adjust the position of the support and positioning adjustment mechanism and the support legs, and ensure that the support legs are all placed on the protruding parts of the trolley main beam structure. At the same time, ensure that the lateral support adjustment mechanism of the support and positioning adjustment mechanism is supported under the trolley main beam structure. Rotate the adjusting bolts to make the support cross plate press against the trolley main beam structure. Step 3: Use a crane to place the end beam on the support adjustment mechanism, align the lower plane with the lower plane of the main beam structure, fix it with positioning clips, press the end beam, weld the other end of the positioning clips to the support adjustment mechanism, and rotate the adjustment bolts to make the support cross plate press against the end beam. Step 4: Rotate the adjusting bolts to keep the main beam structure and the bottom surface of the end beam flush. Use a level and feeler gauge to check until there is no gap. Tighten the anti-fall bolts to fix the support plate and complete the splicing point positioning of the trolley main beam structure and the end beam.

[0011] The advantages of this invention are: strong versatility, no need for special tooling, and no need to make additional tooling when changing product models, saving costs. Easy adjustment, the positioning height of the main beam and end beams can be adjusted via bolts, and can be adjusted from three directions, simplifying the assembly work. No jacks or wedges are needed, and it can be operated by a single person. Simple structure, no complex structure, and low maintenance costs. Attached Figure Description

[0012] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0013] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is a structural schematic diagram of the trolley structure to be assembled according to the present invention; Figure 3 This is a structural schematic diagram of the main beam structure of the present invention; Figure 4 This is a schematic diagram of the end beam structure of the present invention; Figure 5 This is a schematic diagram of the support and positioning adjustment mechanism of the present invention; Figure 6 This is a schematic diagram of the support adjustment mechanism of the present invention; Figure 7 This is a structural schematic diagram of the support frame I of the present invention; Figure 8 This is a structural schematic diagram of the support frame II of the present invention; Figure 9 This is a schematic diagram of step 1 of the dot positioning method of the present invention; Figure 10 This is a schematic diagram of step 2 of the dot positioning method of the present invention; Figure 11 This is a schematic diagram of step 3 of the dot positioning method of the present invention.

[0014] In the diagram: 1. Support and positioning adjustment mechanism; 11. Support adjustment mechanism; 111. Support frame I; 1111. Support frame base plate I; 1112. Support frame column I; 1113. Support frame stiffener I; 1114. Support plate I; 1115. Support frame stiffener II; 112. Support frame II; 1121. Support frame base plate II; 1122. Support frame column II; 1123. Support frame stiffener III; 1124. Support plate II; 1125. Support frame stiffener IV; 113. Support cross plate; 114. Adjusting bolt; 115. Anti-fall bolt; 12. Base plate; 13. Positioning clip; 21. Main beam structure; 22. End beam; 3. Support legs; 4. Ground. Detailed Implementation

[0015] like Figures 1 to 8The device shown is a main-end beam splicing positioning device for a gantry crane trolley structure, including a support and positioning adjustment mechanism 1 and support legs 3; the support and positioning adjustment mechanism 1 is arranged on both sides of the support legs 3; the support and positioning adjustment mechanism 1 includes a support adjustment mechanism 11, a base plate 12 and a positioning clip 13; The support adjustment mechanism 11 includes a support frame I 111, a support frame II 112, a support cross plate 113, adjusting bolts 114, and anti-fall bolts 115. The support frames I 111 and II 112 are welded to the base plate 12, and the distance between them is preset according to the dimensions of the main beam structure 21 and the end beam 22 to ensure stable support. The support cross plate 113 is connected to the support frames I 111 and II 112 by bolts, and the length of the support cross plate 113 is adapted to the width of the main beam structure 21 and the end beam 22 to ensure the stability of the support. The support frame I111 includes a support frame base plate I1111, a support frame column I1112, a support frame stiffener I1113, a support plate I1114, and a support frame stiffener II1115; the support frame II112 includes a support frame base plate II1121, a support frame column II1122, a support frame stiffener III1123, a support plate II1124, and a support frame stiffener IV1125.

[0016] The support column I1112 is vertically positioned at the center of the support base plate I1111. The support column I1112 and the support base plate I1111 are fixed together by a support rib plate I1113, which enhances the stability of the connection. The support plate I1114 is horizontally positioned on one side of the support column I1112 and is supported by two support rib plates II1115. The support rib plates II1115 are welded to the lower surface of the support plate I1114 and the side surface of the support column I1112, respectively.

[0017] The support frame column II1122 is vertically installed at the center of the support frame base plate II1121. The support frame column II1122 and the support frame base plate II1121 are fixed by the support frame stiffener III1123. The support plate II1124 is horizontally installed on the other side of the top of the support frame column II1122, opposite to the direction of the support plate I1114. It is supported by two support frame stiffeners IV1125. The support frame stiffeners IV1125 are welded to the lower surface of the support plate II1124 and the side of the support frame column II1122, respectively.

[0018] The adjusting bolt 114 is installed on the support plate I 1114 and the support plate II 1124 to adjust and position the support cross plate 113. The anti-fall bolt 115 is installed on the bolt mounting holes of the support frame I 111 and the support frame II 112. Each of the support frame I 111 and the support frame II 112 has three bolt mounting holes to connect the support cross plate 113 with the support frame I 111 and the support frame II 112.

[0019] The positioning clips 13 are connected to the support adjustment mechanism 11. Each end beam 22 is equipped with at least two positioning clips 13, which are symmetrically arranged on both sides of the end beam 22 to firmly fix the end beam 22. The number of the support legs 3 is determined according to the length of the main beam structure 21, and is generally no less than four. They are evenly distributed below the main beam structure 21 to support the main beam structure 21.

[0020] This invention also provides a method for positioning the main-end beam splice of a gantry crane trolley structural component, characterized by comprising the following steps: Step 1 as follows Figure 9 As shown: Place the support and positioning adjustment mechanism 1 and the support leg 3 on the ground 4 to ensure that the ground 4 is flat and that the bottom of the support and positioning adjustment mechanism 1 and the support leg 3 are in close contact with the ground 4 without shaking. Step 2 as follows Figure 10 As shown: Using a crane to lift the trolley main beam structure 21, adjust the position of the support and positioning adjustment mechanism 1 and the support legs 3 to ensure that the support legs 3 are all placed on the protruding parts of the trolley main beam structure 21, and at the same time ensure that the lateral support adjustment mechanism 11 of the support and positioning adjustment mechanism 1 is supported under the trolley main beam structure 21. Rotate the adjustment bolt 114 to make the support cross plate 113 press against the trolley main beam structure 21. At this time, the main beam structure 21 has no obvious displacement. Step 3 as follows Figure 11 As shown: Use a crane to lift the end beam 22 and place it on the support adjustment mechanism 11. Align the lower plane with the lower plane of the main beam structure 21, fix it with the positioning clip 13, press the end beam 22, and weld the other end of the positioning clip 13 to the support adjustment mechanism 11. Rotate the adjustment bolt 114 to make the support cross plate 113 press against the end beam 22. Step 4: Rotate the adjusting bolt 114 to keep the bottom surfaces of the main beam structure 21 and the end beam 22 flush. Use a level and feeler gauge to check until there is no gap. Tighten the anti-fall bolt 115 to fix the support plate 113 and complete the splicing point positioning of the trolley main beam structure 21 and the end beam 22.

[0021] The device and method of this invention can quickly and accurately complete the splicing point positioning of the main-end beams of the gantry crane trolley structure, thereby improving production efficiency and product quality.

Claims

1. A positioning device for the main-end beam splicing point of a gantry crane trolley structural component, characterized in that: It includes a support and positioning adjustment mechanism (1) and a support leg (3); the support and positioning adjustment mechanism (1) is set on both sides of the support leg (3); the support and positioning adjustment mechanism (1) includes a support adjustment mechanism (11), a base plate (12) and a positioning clip (13). The support adjustment mechanism (11) includes support frame I (111), support frame II (112), support cross plate (113), adjustment bolt (114), and anti-fall bolt (115); support frame I (111) and support frame II (112) are welded to the base plate (12), and the support cross plate (113) is connected to support frame I (111) and support frame II (112) by bolts; the positioning clip (13) is connected to the support adjustment mechanism (11) and is used to fix the end beam (22); the support leg (3) is used to support the main beam structure (21) of the trolley. The support frame I (111) includes a support frame base plate I (1111), a support frame column I (1112), a support frame stiffener I (1113), a support plate I (1114), and a support frame stiffener II (1115); the support frame II (112) includes a support frame base plate II (1121), a support frame column II (1122), a support frame stiffener III (1123), a support plate II (1124), and a support frame stiffener IV (1125); the support frame column I (1112) is mounted on the support frame base plate I (1111), and the support frame column I (1112) is mounted on the support frame base plate I (1111). 12) The support frame base plate I (1111) is fixed by the support frame stiffener I (1113), and the support plate I (1114) is set on the support frame column I (1112) and supported by the support frame stiffener II (1115); the support frame column II (1122) is set on the support frame base plate II (1121), the support frame column II (1122) and the support frame base plate II (1121) are fixed by the support frame stiffener III (1123), and the support plate II (1124) is set on the support frame column II (1122) and supported by the support frame stiffener IV (1125); The adjusting bolt (114) is installed on the support plate I (1114) and the support plate II (1124) to adjust and position the support cross plate (113). The anti-fall bolt (115) is installed on the bolt mounting holes of the support frame I (111) and the support frame II (112) to connect the support cross plate (113) with the support frame I (111) and the support frame II (112).

2. The gantry crane trolley structural component main-end beam splicing positioning device according to claim 1, characterized in that: The support plates I (1114) and II (1124) of the support frame I (111) and support frame II (112) have different directions.

3. The gantry crane trolley structural component main-end beam splicing positioning device according to claim 1, characterized in that: The support frame I (111) and support frame II (112) are provided with three bolt mounting holes for placing anti-fall bolts (115).

4. A positioning method based on the main-end beam splicing point positioning device for the gantry crane trolley structural component according to any one of claims 1-3, characterized in that, Includes the following steps: Step 1: Place the support and positioning adjustment mechanism (1) and the support leg (3) on the ground (4); Step 2: Use a crane to lift the trolley main beam structure (21), adjust the position of the support and positioning adjustment mechanism (1) and the support legs (3) to ensure that the support legs (3) are all placed on the protruding part of the trolley main beam structure (21), and at the same time ensure that the horizontal support adjustment mechanism (11) of the support and positioning adjustment mechanism (1) is supported below the trolley main beam structure (21), and rotate the adjustment bolt (114) to make the support cross plate (113) press against the trolley main beam structure (21). Step 3: Use the crane to place the end beam (22) on the support adjustment mechanism (11), align the lower plane with the lower plane of the trolley main beam structure (21), fix it with the positioning clip (13), press the end beam (22), weld the other end of the positioning clip (13) to the support adjustment mechanism (11), and rotate the adjustment bolt (114) to make the support cross plate (113) press against the end beam (22). Step 4: Rotate the adjusting bolt (114) to keep the bottom surface of the trolley main beam structure (21) and the end beam (22) flush. Use a level and feeler gauge to check until there is no gap. Tighten the anti-fall bolt (115) to fix the support plate (113) and complete the splicing point positioning of the trolley main beam structure (21) and the end beam (22).

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