A method of docking a jib

Abstract

The present application provides a kind of butt joint method of boom, including boom, the boom includes boom front section, main hook pulley frame and auxiliary hook pulley frame, by wire rope, boom front section is hoisted to support column, then by wire rope, main hook pulley frame is turned over, so that one side of main hook pulley frame is butt jointed with boom front section, then auxiliary hook pulley frame is hoisted to the other side of main hook pulley frame, simultaneously, auxiliary hook pulley frame is at the same height with main hook pulley frame, so that auxiliary hook pulley frame is butt jointed with main hook pulley frame, the present application can avoid operating boom in high altitude, effectively improve the security and efficiency in the process of boom butt joint.

Description

Technical Field

[0001] This invention relates to the field of crane boom technology, and more specifically to a boom docking method. Background Technology

[0002] With the development of industry, the movement of large and heavy goods often requires the use of cranes to lift them and move them to their designated destination. However, due to their large size and weight, cranes need to be assembled in sections during production. Current technology involves simply placing the crane boom upright and connecting it to the machine. Figure 1 As shown, the front section 1' of the boom is placed on the support column 4', and the auxiliary hook pulley frame 3' is placed on the support column 4', and then spliced ​​on both sides of the main hook pulley frame 2'. However, because the angle formed between the front section 1' of the boom and the auxiliary hook pulley frame 3' is large, the height of the support column 4' needs to be increased so that the auxiliary hook pulley frame 3' does not contact the ground. This requires working at height, which reduces the safety of the operation and makes it difficult to carry out the operation efficiently. In addition, it also increases the manufacturing cost of the support column. Summary of the Invention

[0003] The purpose of this invention is to provide a method for boom docking that avoids operating the boom at high altitudes, thereby effectively improving the safety and efficiency of the boom docking process.

[0004] To achieve the above objectives, a boom docking method is provided, comprising a boom, the boom including a front section of the boom, a main hook pulley frame and a secondary hook pulley frame;

[0005] It also includes the following steps:

[0006] (1) First, use a crane to drive the wire rope to lift the front section of the boom onto the support columns at different heights;

[0007] (2) Then, the main hook pulley frame is flipped over by driving the wire rope of the crane, so that the main hook pulley frame is flipped from the horizontal position to the vertical position. Then it is moved to the front of the front section of the boom and the axis height of the main hook pulley frame is consistent with the axis height of the front section of the boom. Then, one side of the main hook pulley frame is connected to the front section of the boom.

[0008] (3) The auxiliary hook pulley frame is lifted to the other side of the main hook pulley frame by driving the steel wire rope with a crane, so that the end of the auxiliary hook pulley frame that is connected to the main hook pulley frame is at the same height, and the end of the auxiliary hook pulley frame that is away from the main hook pulley frame is in an oblique upward state. Then the auxiliary hook pulley frame is connected to the other side of the main hook pulley frame.

[0009] (4) Weld the gaps on both sides of the main hook pulley frame respectively, so that the front section of the boom, the main hook pulley frame and the auxiliary hook pulley frame are connected to form a whole.

[0010] The above setup involves using wire ropes to hoist the front section of the boom onto the support column, thus securing the front section first and using its axis height as a reference for docking. The main hook pulley frame is then flipped using wire ropes, changing it from a horizontal to a vertical position. After adjusting the axis height of the main hook pulley frame, it is aligned with the front section of the boom, allowing one side of the main hook pulley frame to dock with the front section. Finally, the auxiliary hook pulley frame is hoisted onto... On the other side of the main hook pulley frame, the auxiliary hook pulley frame is positioned at the same height as the main hook pulley frame. At this point, the front section of the boom, the main hook pulley frame, and the auxiliary hook pulley frame are all at the same height, allowing the auxiliary hook pulley frame to be connected to the main hook pulley frame. After connection, the end of the auxiliary hook pulley frame furthest from the main hook pulley frame is angled upwards. This avoids the auxiliary hook pulley frame from touching the ground during connection due to the obtuse angle formed between it and the front section of the boom, which would affect the connection process.

[0011] Furthermore, step (1) also includes the following steps:

[0012] (1.1) First, suspend one shackle at one end of the front section of the boom and the other shackle at the other end of the front section of the boom. Then, the two wire ropes are respectively hooked onto the two shackles through the hooks.

[0013] (1.2) Drive the crane to lift the two wire ropes at the same time. After lifting the front part of the boom a distance h away from the jig, place it under static load for a period of time t, and then observe the stress on the front part of the boom.

[0014] (1.3) After observing that there are no abnormalities, drive the two wire ropes to lift at the same time. When the front part of the boom is lifted above the support column, first slowly lower one wire rope, and then adjust the other wire rope to slowly lower at the same time, so that the front part of the boom is placed on the support column at different heights at the same time.

[0015] The above setup allows the front section of the boom to be safely hoisted onto support columns at different heights using wire ropes, ensuring that the axis of the front section of the boom is aligned with the horizontal plane.

[0016] Furthermore, step (2) also includes the following steps:

[0017] (2.1) Hang one shackle on one side of the main hook pulley frame and the other shackle on the other side of the main hook pulley frame, so that the two wire ropes are respectively hooked on the two shackles through the hook;

[0018] (2.2) Drive the crane to lift the two wire ropes at the same time. After lifting the front part of the boom a certain distance h away from the jig, place it under static load for a period of time t, and then observe the stress on the main hook pulley frame.

[0019] (2.3) After observing that there are no abnormalities, drive one wire rope to slowly rise and drive the other wire rope to slowly descend, flip the main hook pulley frame from the horizontal position to the vertical position, and then lift it to the front of the end of the boom that needs to be connected.

[0020] (2.4) Simultaneously drive the two wire ropes to adjust the height of the main hook pulley frame so that the axis height of the main hook pulley frame is consistent with the axis height of the front section of the boom. Then, drive the wire rope to make the main hook pulley frame move horizontally and dock with the front section of the boom. And spot weld to make one side of the main hook pulley frame initially fixed to the front section of the boom.

[0021] The above setup involves flipping the main hook pulley frame from a horizontal to a vertical position, aligning its axis with that of the front section of the boom. This facilitates docking between the main hook pulley frame and the front section of the boom. Spot welding is then performed between the main hook pulley frame and the front section of the boom to initially secure them, preparing them for the next docking step.

[0022] Furthermore, step (3) also includes the following steps:

[0023] (3.1) Hang one shackle on one end of the auxiliary hook pulley frame and the other shackle on the other end of the auxiliary hook pulley frame, and then let the two wire ropes pass through the hooks and be caught on the two shackles respectively;

[0024] (3.2) Drive the crane to lift the two wire ropes at the same time. After lifting the auxiliary hook pulley frame a distance h away from the jig, place it under static load for a period of time t, and then observe the stress on the auxiliary hook pulley frame.

[0025] (3.3) After observing that there are no abnormalities, move the auxiliary hook pulley frame to the front of the other side of the main hook pulley frame, drive one wire rope to slowly rise, and drive the other wire rope to slowly descend, so that the end of the auxiliary hook pulley frame that is connected to the main hook pulley frame is at the same height, and at the same time, the end of the auxiliary hook pulley frame that is away from the main hook pulley frame is in an oblique upward state.

[0026] (3.4) Simultaneously drive the two steel wire ropes to make the auxiliary hook pulley frame move horizontally and dock with the other side of the main hook pulley frame, and use spot welding to make the auxiliary hook pulley frame and the other side of the main hook pulley frame initially fixed.

[0027] The above setup, after lifting the auxiliary hook pulley frame a certain distance from the jig and placing it under static load for a period of time, allows for observation of the stress on the auxiliary hook pulley frame and determination of its safety after lifting. This enables the end of the auxiliary hook pulley frame that connects to the main hook pulley frame to be at the same height, while the end of the auxiliary hook pulley frame furthest from the main hook pulley frame is angled upwards. This ensures proper connection between the auxiliary and main hook pulley frames, while preventing the auxiliary hook pulley frame from contacting the ground during connection and affecting the process.

[0028] Furthermore, the support column includes a first support column and a second support column. The second support column is located on the side near where the main hook pulley frame connects with the front section of the boom, and the first support column is located on the side away from where the main hook pulley frame connects with the front section of the boom. The height of the second support column is greater than the height of the first support column.

[0029] The above setup ensures that after the front section of the boom is placed on the support column, the axis of the front section of the boom is parallel to the ground, facilitating subsequent docking. Attached Figure Description

[0030] Figure 1 This is a schematic diagram of existing technology.

[0031] Figure 2 This is a schematic diagram of the front section of the boom placed on the support column in this invention.

[0032] Figure 3 This is a schematic diagram showing the connection between the front section of the boom and the main hook pulley frame of the present invention.

[0033] Figure 4 This is a schematic diagram of the overall structure of the present invention.

[0034] Figure 5 This is a flowchart of the process of the present invention. Detailed Implementation

[0035] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0036] In this embodiment, as Figure 2-4 As shown, a method for connecting a boom includes a boom, which includes a front section 1, a main hook pulley 2, and a secondary hook pulley 3. The front section 1 is suspended to a support column by a wire rope. The support column includes a first support column 11 and a second support column 12. The second support column 12 is located on the side near the main hook pulley 2 where it connects with the front section 1, and the first support column 11 is located on the side away from the main hook pulley 2 where it connects with the front section 1. The height of the second support column 12 is greater than the height of the first support column 11.

[0037] In this embodiment, as Figure 5As shown, the following specific steps are also included:

[0038] (1) First, the front section 1 of the boom is lifted and placed onto the first support column 11 and the second support column 12 at different heights by using a crane to drive the wire rope.

[0039] (1.1) Suspend one shackle at one end of the front section 1 of the boom and the other shackle at the other end of the front section 1 of the boom, and then let the two wire ropes pass through the hooks and be caught on the two shackles respectively;

[0040] (1.2) Drive the crane to lift the two wire ropes at the same time. After lifting the front section 1 of the boom a distance h away from the frame, place it under static load for a period of time t, and then observe the stress on the front section 1 of the boom. In this embodiment, the distance h is set to 5 cm and the time t is set to 3 minutes.

[0041] (1.3) After observing that there are no abnormalities, drive the two wire ropes to lift at the same time. When the front section 1 of the boom is lifted above the first support column 11 and the second support column 12, first slowly lower one wire rope, and then adjust the other wire rope to slowly lower at the same time, so that the front section 1 of the boom is placed on the first support column 11 and the second support column 12 at different heights at the same time.

[0042] (2) Then, the main hook pulley frame 2 is flipped over by driving the wire rope of the crane, so that the main hook pulley frame 2 is flipped from a horizontal position to a vertical position. Then it is moved to the front of the front section 1 of the boom and the axis height of the main hook pulley frame 2 is consistent with the axis height of the front section 1 of the boom. Then, one side of the main hook pulley frame 2 is connected to the front section 1 of the boom.

[0043] (2.1) Hang one shackle on one side of the main hook pulley frame 2 and the other shackle on the other side of the main hook pulley frame 2, and then let the two wire ropes pass through the hooks and be caught on the two shackles respectively;

[0044] (2.2) Drive the crane to lift the two wire ropes at the same time. After the main hook pulley frame 2 is lifted a distance h away from the frame, it is left to stand under static load for a period of time t. Then observe the stress on the main hook pulley frame 2. In this embodiment, the distance h is set to 5 cm and the time t is set to 3 minutes.

[0045] (2.3) After observing that there are no abnormalities, drive one wire rope to slowly rise and drive the other wire rope to slowly descend. Turn the main hook pulley frame 2 from the horizontal position to the vertical position, and then lift it to the front of the end of the boom section 1 that needs to be connected.

[0046] (2.4) Simultaneously drive the two wire ropes to adjust the height of the main hook pulley frame 2 so that the axis height of the main hook pulley frame 2 is consistent with the axis height of the front section 1 of the boom. Then, drive the wire rope to make the main hook pulley frame 2 move horizontally and dock with the front section 1 of the boom. And spot weld to make one side of the main hook pulley frame 2 initially fixed to the front section 1 of the boom.

[0047] (3) Using a crane to drive the wire rope, the auxiliary hook pulley frame 3 is hoisted to the other side of the main hook pulley frame 2, so that the end of the auxiliary hook pulley frame 3 that is connected to the main hook pulley frame 2 is at the same height, and the end of the auxiliary hook pulley frame 3 that is away from the main hook pulley frame 2 is in an upward angle. Then, the auxiliary hook pulley frame 3 is connected to the other side of the main hook pulley frame 2.

[0048] (3.1) Hang one shackle on one end of the auxiliary hook pulley frame 3 and the other shackle on the other end of the auxiliary hook pulley frame 3, and then let the two wire ropes pass through the hooks and be caught on the two shackles respectively;

[0049] (3.2) Drive the crane to lift the two wire ropes at the same time. After the auxiliary hook pulley frame 3 is lifted a distance h away from the frame, it is left to stand under static load for a period of time t. Then observe the stress on the auxiliary hook pulley frame 3. In this embodiment, the distance h is set to 5 cm and the time t is set to 3 minutes.

[0050] (3.3) After observing that there are no abnormalities, move the auxiliary hook pulley frame 3 to the front of the other side of the main hook pulley frame 2, drive one wire rope to slowly rise, and at the same time drive the other wire rope to slowly descend, so that the end of the auxiliary hook pulley frame 3 that is connected to the main hook pulley frame 2 is at the same height, and at the same time, make the end of the auxiliary hook pulley frame 3 that is far from the main hook pulley frame 2 in an oblique upward state.

[0051] (3.4) Simultaneously drive the two steel wire ropes to make the auxiliary hook pulley frame 3 move horizontally and dock with the other side of the main hook pulley frame 2, and spot weld to make the auxiliary hook pulley frame 3 and the other side of the main hook pulley frame 2 initially fixed;

[0052] (4) Weld the gaps on both sides of the main hook pulley frame 2 completely so that the front section 1 of the boom, the main hook pulley frame 2 and the auxiliary hook pulley frame 3 are connected to form a whole.

Claims

1. A method for docking a boom, comprising a boom, the boom including a front section of the boom, a main hook pulley frame, and a secondary hook pulley frame; It also includes the following steps: (1) First, use a crane to drive the wire rope to lift the front section of the boom onto the support columns at different heights; (2) Then, the main hook pulley frame is flipped over by driving the wire rope of the crane, so that the main hook pulley frame is flipped from the horizontal position to the vertical position. Then it is moved to the front of the front section of the boom and the axis height of the main hook pulley frame is consistent with the axis height of the front section of the boom. Then, one side of the main hook pulley frame is connected to the front section of the boom. (3) The auxiliary hook pulley frame is lifted to the other side of the main hook pulley frame by driving the steel wire rope with a crane, so that the end of the auxiliary hook pulley frame that is connected to the main hook pulley frame is at the same height, and the end of the auxiliary hook pulley frame that is away from the main hook pulley frame is in an oblique upward state. Then the auxiliary hook pulley frame is connected to the other side of the main hook pulley frame. (4) Weld the gaps on both sides of the main hook pulley frame respectively, so that the front section of the boom, the main hook pulley frame and the auxiliary hook pulley frame are connected to form a whole.

2. The boom docking method according to claim 1, characterized in that: Step (1) also includes the following steps: (1.1) First, suspend one shackle at one end of the front section of the boom and the other shackle at the other end of the front section of the boom. Then, the two wire ropes are respectively hooked onto the two shackles through the hooks. (1.2) Drive the crane to lift the two wire ropes at the same time. After lifting the front part of the boom a distance h away from the jig, place it under static load for a period of time t, and then observe the stress on the front part of the boom. (1.3) After observing that there are no abnormalities, drive the two wire ropes to lift at the same time. When the front part of the boom is lifted above the support column, first slowly lower one wire rope, and then adjust the other wire rope to slowly lower at the same time, so that the front part of the boom is placed on the support column at different heights at the same time.

3. The boom docking method according to claim 1, characterized in that: Step (2) also includes the following steps: (2.1) Hang one shackle on one side of the main hook pulley frame and the other shackle on the other side of the main hook pulley frame, so that the two wire ropes are respectively hooked on the two shackles through the hook; (2.2) Drive the crane to lift the two wire ropes at the same time. After lifting the front part of the boom a certain distance h away from the jig, place it under static load for a period of time t, and then observe the stress on the main hook pulley frame. (2.3) After observing that there are no abnormalities, drive one wire rope to slowly rise and drive the other wire rope to slowly descend, flip the main hook pulley frame from the horizontal position to the vertical position, and then lift it to the front of the end of the boom that needs to be connected. (2.4) Simultaneously drive the two wire ropes to adjust the height of the main hook pulley frame so that the axis height of the main hook pulley frame is consistent with the axis height of the front section of the boom. Then, drive the wire rope to make the main hook pulley frame move horizontally and dock with the front section of the boom. And spot weld to make one side of the main hook pulley frame initially fixed to the front section of the boom.

4. The method for docking a crane boom according to claim 1, characterized in that: Step (3) also includes the following steps: (3.1) Hang one shackle on one end of the auxiliary hook pulley frame and the other shackle on the other end of the auxiliary hook pulley frame, and then let the two wire ropes pass through the hooks and be caught on the two shackles respectively; (3.2) Drive the crane to lift the two wire ropes at the same time. After lifting the auxiliary hook pulley frame a distance h away from the jig, place it under static load for a period of time t, and then observe the stress on the auxiliary hook pulley frame. (3.3) After observing that there are no abnormalities, move the auxiliary hook pulley frame to the front of the other side of the main hook pulley frame, drive one wire rope to slowly rise, and drive the other wire rope to slowly descend, so that the end of the auxiliary hook pulley frame that is connected to the main hook pulley frame is at the same height, and at the same time, the end of the auxiliary hook pulley frame that is away from the main hook pulley frame is in an oblique upward state. (3.4) Simultaneously drive the two steel wire ropes to make the auxiliary hook pulley frame move horizontally and dock with the other side of the main hook pulley frame, and use spot welding to make the auxiliary hook pulley frame and the other side of the main hook pulley frame initially fixed.

5. The method for docking a crane boom according to claim 1, characterized in that: The support column includes a first support column and a second support column. The second support column is located on the side near where the main hook pulley frame connects with the front section of the boom, and the first support column is located on the side away from where the main hook pulley frame connects with the front section of the boom. The height of the second support column is greater than the height of the first support column.

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