Hoisting tool

Abstract

The utility model relates to a hoisting appliance which comprises a main beam and an auxiliary beam, the main beam is horizontally arranged, the auxiliary beam is fixedly arranged at the bottom of the main beam, a through hole is formed in the auxiliary beam, a plurality of hoisting mechanisms are arranged on the main beam, and the plurality of hoisting mechanisms are distributed along the length direction of the main beam; the hoisting mechanism comprises a moving block, the moving block is slidably connected with the main beam in a sleeved mode, the sliding direction of the moving block and the main body is parallel to the length direction of the main beam, and a lifting lug is fixedly arranged at the top of the moving block. The movable block moves on the main beam, so that the stress position of the main beam is adjusted, the stress uniformity of the main beam is improved, the deformation quantity of the main beam is reduced, and the service life is prolonged.

Description

Technical Field

[0001] The utility model relates to a hoisting tool and belongs to the technical field of galvanizing. Background Art

[0002] Power towers are steel tower structures used to support high-voltage transmission lines. They are usually located along the power transmission lines to support and maintain the safe operation of the transmission lines. The design of power towers mainly takes into account the weight of the supported lines, wind pressure, earthquakes and other natural forces to ensure the stable operation and safety of the lines. Power towers are usually made of angle steel, and they are designed according to the requirements of different voltage levels and line types of transmission lines. Common types of power towers include straight towers (single tower, double tower), corner towers, terminal towers, etc. These towers support transmission lines at different positions and angles to form a reliable power transmission network. When using angle steel, in order to improve its wear resistance and rust resistance, it needs to be galvanized. When galvanizing, a hanger needs to be used for galvanizing.

[0003] The Chinese invention patent with the publication number CN215713296U discloses a hanger for galvanizing, which belongs to the field of galvanizing technology. The hanger includes a main hanger beam and an extension beam. The main hanger beam is provided with a lifting lug, and the extension beam has two lugs. The two ends of the main hanger beam have a receiving cavity, and the ends of the two extension beams facing each other are respectively received in the receiving cavities at the two ends of the main hanger beam, and the two extension beams can move outward from the corresponding receiving cavities. The main hanger beam and the extension beam are both provided with a hanger beam for installing the hanger; the main hanger beam and the extension beam are fixed by a latch; a linear guide slider mechanism is connected between the bottom surface of the extension beam and the supporting surface in the receiving cavity, and the linear guide slider mechanism extends in the same direction as the main hanger beam. When the utility model hanger is used in galvanizing production, there is no need to switch the hanger when switching to produce parts of different specifications, which reduces the cost of the hanger and improves production efficiency. However, in the prior art, due to the long overall structure, it is heavy itself, and after long-term use, it is easy to cause bending and deformation due to the center of gravity and deadweight, which affects the service life.

[0004] Therefore, there is a need for a lifting device that can reduce deformation during use and extend its service life. Utility Model Content

[0005] The technical problem to be solved by the utility model is: in order to overcome the deficiencies of the prior art, a hoisting tool is provided which can reduce the deformation amount during use and prolong the service life.

[0006] The technical solution adopted by the utility model to solve the above problems is: a lifting tool, including a main beam and a secondary beam, the main beam is arranged horizontally, the secondary beam is fixedly arranged at the bottom of the main beam, the secondary beam is provided with a through hole, the main beam is provided with a plurality of lifting mechanisms, and the plurality of lifting mechanisms are distributed along the length direction of the main beam;

[0007] The hoisting mechanism comprises a moving block, which is slidably sleeved with the main beam, the sliding direction of the moving block and the main body is parallel to the length direction of the main beam, and a lifting ear is fixedly arranged on the top of the moving block.

[0008] Preferably, the moving block is provided with reinforcing ribs, and the reinforcing ribs are connected to the lifting ears.

[0009] Preferably, the main beam is an I-beam.

[0010] Preferably, the main beam comprises an upper plate, a middle plate and a lower plate, the upper plate and the lower plate are both arranged horizontally, the upper plate is fixedly arranged on the top of the middle plate, and the lower plate is fixedly arranged on the bottom of the middle plate.

[0011] Preferably, the upper plate, the middle plate and the lower plate are an integrally formed structure.

[0012] Preferably, a sleeve hole is provided on the moving block, the sleeve hole is sleeved on the upper plate, a groove is provided at the bottom of the sleeve hole, the groove extends to the bottom of the moving block, and the middle plate passes through the groove.

[0013] Preferably, the moving block is locked with the upper plate via a locking member.

[0014] Preferably, a plurality of auxiliary beams are provided, and the plurality of auxiliary beams are evenly distributed along the length direction of the main beam.

[0015] Preferably, two connecting blocks are fixedly provided on the top of the auxiliary beam, the two connecting blocks are symmetrical about the main beam, and a slot is provided on one side of the connecting block, and the lower plate is inserted into the slot.

[0016] Preferably, two limit pins are inserted into the top of the main beam, the two limit pins are distributed along the length direction of the main beam, and each lifting mechanism is located between the two limit pins.

[0017] Compared with the prior art, the advantages of the utility model are:

[0018] The utility model discloses a hoisting tool, which realizes the adjustment of the stress position of the main beam by moving a moving block on the main beam, thereby facilitating the improvement of the stress uniformity of the main beam, reducing the deformation of the main beam and prolonging the service life. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a three-dimensional diagram of a lifting tool of the utility model;

[0020] Figure 2 This is a front view of a lifting device of the utility model;

[0021] Figure 3 This is a top view of a lifting device of the utility model;

[0022] Figure 4 This is a front view of a lifting device of the utility model;

[0023] Figure 5 It is a three-dimensional diagram of the lifting mechanism;

[0024] Figure 6 A three-dimensional diagram of the main beam;

[0025] Figure 7 This is a three-dimensional diagram of the auxiliary beam.

[0026] in:

[0027] Main beam 1, auxiliary beam 2, through hole 3, hoisting mechanism 4, connecting block 5, slot 6, limit pin 7;

[0028] Upper plate 11, middle plate 12, lower plate 13;

[0029] Moving block 41 , lifting ear 42 , reinforcing rib 43 , sleeve hole 44 , groove 45 , screw 46 . DETAILED DESCRIPTION

[0030] like Figure 1-7 As shown, a lifting device in this embodiment includes a main beam 1 and a sub-beam 2, the main beam 1 is arranged horizontally, the sub-beam 2 is fixedly arranged at the bottom of the main beam 1 by welding, a plurality of sub-beams 2 are provided, and the plurality of sub-beams 2 are evenly distributed along the length direction of the main beam 1, a through hole 3 is provided on the sub-beam 2, and two lifting mechanisms 4 are provided on the top of the main beam 1, and the two lifting mechanisms 4 are distributed along the length direction of the main beam 1;

[0031] The hoisting mechanism 4 includes a moving block 41, the moving block 41 is slidably sleeved with the main beam 1, the sliding direction of the moving block 41 and the main body is parallel to the length direction of the main beam 1, and a lifting ear 42 is fixedly provided on the top of the moving block 41;

[0032] The moving block 41 is provided with a reinforcing rib 43, and the reinforcing rib 43 is connected to the lifting lug 42, so that the connection strength between the lifting lug 42 and the moving block 41 is improved by the reinforcing rib 43;

[0033] The main beam 1 is an I-beam;

[0034] The main beam 1 includes an upper plate 11, a middle plate 12 and a lower plate 13, the upper plate 11 and the lower plate 13 are arranged horizontally, the upper plate 11 is fixedly arranged on the top of the middle plate 12, and the lower plate 13 is fixedly arranged on the bottom of the middle plate 12, and the upper plate 11, the middle plate 12 and the lower plate 13 are an integrally formed structure;

[0035] The moving block 41 is provided with a sleeve hole 44, the sleeve hole 44 is sleeved on the upper plate 11, the bottom of the sleeve hole 44 is provided with a groove 45, the groove 45 extends to the bottom of the moving block 41, and the middle plate 12 passes through the groove 45;

[0036] The moving block 41 is locked with the upper plate 11 by a locking member, and the locking member is a screw 46;

[0037] There are a plurality of through holes 3, which are distributed along the length direction of the secondary beam 2, and the through holes 3 are used to hang the power tower components;

[0038] The auxiliary beam 2 is arranged horizontally, and the auxiliary beam 2 is perpendicular to the main beam 1;

[0039] Two connecting blocks 5 are fixedly arranged on the top of the secondary beam 2, and the two connecting blocks 5 are symmetrical with respect to the main beam 1. A slot 6 is arranged on one side of the connecting block 5, and the lower plate 13 is inserted into the slot 6.

[0040] Two limit pins 7 are inserted into the top of the main beam 1. The two limit pins 7 are distributed along the length direction of the main beam 1. The two hoisting mechanisms 4 are located between the two limit pins 7. The limit pins 7 are used to limit the moving block 41 to prevent the moving block 41 from being separated from the main beam 1 when moving.

[0041] During operation, a hook is provided on the lifting lug 42, and the hook is connected to a lifting device, which may be an electric hoist. The lifting lug 42 is driven to rise and fall by the hook through the lifting device. The lifting lug 42 is driven to rise and fall by the lifting lug 42, and the lifting and falling of the main beam 1 is driven to rise and fall by the lifting and falling of the main beam 1. The lifting and falling of the auxiliary beam 2 is driven to rise and fall synchronously, and the power tower component is hung on the auxiliary beam 2. When the auxiliary beam 2 drives the power tower component to move into the galvanizing device, the power tower component is galvanized.

[0042] During the process of lifting and moving the main beam 1, the connection between the main beam 1 and the moving block 41 is stressed. If this continues for a long time, the main beam 1 is prone to deformation. In order to prevent the main beam 1 from deforming, each time the main beam 1 is lifted and moved, the position of the moving block 41 and the main beam 1 is changed according to the position and weight of the hanging power tower components, so that the main beam 1 is stressed evenly and the deformation is reduced.

[0043] Moreover, when the main beam 1 is deformed, the force points at the next hoisting are changed so that the deformed position of the main beam 1 is subjected to a force opposite to that of the previous hoisting, that is, when the two ends of the main beam 1 are subjected to force and deform downward during the previous hoisting, the distance between the two moving blocks 41 increases during the next hoisting, so that the middle part of the main beam 1 is subjected to force, while the two ends of the main beam 1 are deformed upward. When the two ends of the main beam 1 are subjected to force and deform upward during the previous hoisting, the distance between the two blocks decreases during the next hoisting, so that the two ends of the main beam 1 are subjected to force and deform downward. In this way, the main beam 1 is reshaped to avoid long-term deformation of the main beam 1 and affecting its service life.

[0044] Of course, in an ideal state, the components of the power tower are evenly distributed, that is, the main beam 1 is evenly stressed everywhere and has no deformation;

[0045] In order to further reduce the deformation of the main beam 1, channel steel and square tubes can be welded between the upper plate 11 and the lower plate 13 to improve the overall strength of the main beam 1 and reduce the deformation of the main beam 1;

[0046] In addition, there may be two main beams 1, and the two main beams 1 are welded side by side into a whole;

[0047] When the position of the moving block 41 needs to be changed, the screw 46 is loosened to move the moving block 41 on the main beam 1. After the moving block 41 has been moved, the screw 46 is tightened to fix the moving block 41 to the main beam 1.

[0048] In summary, by moving the moving block 41 on the main beam 1, the force position of the main beam 1 is adjusted, which is convenient for improving the force uniformity of the main beam 1, reducing the deformation of the main beam 1, and extending the service life.

[0049] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A lifting device, comprising a main beam (1) and a secondary beam (2), wherein the main beam (1) is arranged horizontally, the secondary beam (2) is fixedly arranged at the bottom of the main beam (1), and a through hole (3) is arranged on the secondary beam (2), characterized in that: The main beam (1) is provided with a plurality of hoisting mechanisms (4), and the plurality of hoisting mechanisms (4) are distributed along the length direction of the main beam (1); The lifting mechanism (4) comprises a moving block (41), the moving block (41) is slidably sleeved with the main beam (1), the sliding direction of the moving block (41) and the main body is parallel to the length direction of the main beam (1), and a lifting lug (42) is fixedly provided on the top of the moving block (41).

2. A lifting tool according to claim 1, characterized in that: The moving block (41) is provided with a reinforcing rib (43), and the reinforcing rib (43) is connected to the lifting lug (42).

3. A lifting tool according to claim 1, characterized in that: The main beam (1) is an I-beam.

4. A lifting tool according to claim 1, characterized in that: The main beam (1) comprises an upper plate (11), a middle plate (12) and a lower plate (13); the upper plate (11) and the lower plate (13) are both arranged horizontally; the upper plate (11) is fixedly arranged on the top of the middle plate (12), and the lower plate (13) is fixedly arranged on the bottom of the middle plate (12).

5. A lifting tool according to claim 4, characterized in that: The upper plate (11), the middle plate (12) and the lower plate (13) are an integrally formed structure.

6. A lifting tool according to claim 4, characterized in that: The moving block (41) is provided with a sleeve hole (44), the sleeve hole (44) is sleeved on the upper plate (11), the bottom of the sleeve hole (44) is provided with a groove (45), the groove (45) extends to the bottom of the moving block (41), and the intermediate plate (12) passes through the groove (45).

7. A lifting tool according to claim 4, characterized in that: The moving block (41) is locked with the upper plate (11) via a locking piece.

8. A lifting tool according to claim 1, characterized in that: A plurality of auxiliary beams (2) are provided, and the plurality of auxiliary beams (2) are evenly distributed along the length direction of the main beam (1).

9. A lifting tool according to claim 4, characterized in that: Two connection blocks (5) are fixedly arranged on the top of the auxiliary beam (2), the two connection blocks (5) are symmetrical with respect to the main beam (1), a slot (6) is arranged on one side of the connection block (5), and the lower plate (13) is inserted into the slot (6).

10. A lifting tool according to claim 1, characterized in that: Two limit pins (7) are inserted into the top of the main beam (1), the two limit pins (7) are distributed along the length direction of the main beam (1), and each lifting mechanism (4) is located between the two limit pins (7).

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