A crane structure deformation detection device

Abstract

The present invention discloses a deformation detection device for a lifting machinery structure, comprising: a hook, which is semicircular, with threaded columns fixedly arranged at the left and right ends of the hook, and notches arranged at the left and right sides of the hook; a support column, with the lower end of the support column being threadedly connected to any one of the threaded columns; and a deformation detection mechanism, with the upper end of the support column being connected to the deformation detection mechanism. The deformation detection mechanism comprises: a detection tube, which is sleeved on the support column; and a support tube, which is slidably sleeved on the top of the support column. The present invention can quickly detect whether the crane hook is deformed by designing a deformation detection mechanism, and the operation is simple and convenient. When the hook is used to hang a heavy object, the hook can shake up and down to compress the spring, which has a buffering effect, and avoids the deformation of the hook caused by the heavy object pressing the hook hard. And during buffering, the spring compressed each time can be different, so as to avoid the same spring being compressed repeatedly, effectively improve the service life of each spring, and ensure the buffering effect.

Description

Technical Field

[0001] The invention relates to the field of detection devices, and in particular to a crane structure deformation detection device. Background Art

[0002] A crane refers to a multi-action lifting machinery that can lift heavy objects vertically and carry them horizontally within a certain range. It is also called an overhead crane, an overhead crane, or a crane. For example, the patent with application number 202221663936.9 discloses a crane, which includes a frame assembly, a crawler, and an outrigger assembly. The crawler is mounted on the frame assembly. The outrigger assembly is mounted on the frame assembly; wherein the outrigger assembly is constructed to provide support for the crane when the crane is operating. In the crane provided by the above technical solution, the crawler is used to realize the walking and transfer transportation of the crane. The outrigger assembly is used to provide support when the crane is operating, and the size of the outrigger assembly can be set large enough. The larger the size of the outrigger assembly, the stronger the load-bearing capacity, and the more it can meet the lifting requirements of cranes with super-large tonnage. The patent with application number 202323060723.4 discloses a tower crane, including: a transfer device, an outrigger system, a turntable, a climbing frame, a tower body, an upper platform, a main arm and a super-lifting mast; the outrigger system and the turntable are respectively arranged on the transfer device; the climbing frame is arranged on the turntable, and the tower body is mounted in the climbing frame; the tower body has a plurality of identical tower sections; the lower end of the tower body is detachably connected to the turntable, and the upper end of the tower body is connected to the transition tower section; the top of the transition tower section is provided with an upper platform; a tensioning mechanism and a tower body pull plate are arranged between the upper platform and the turntable; the upper part of the upper platform is respectively connected to one end of the main arm and one end of the super-lifting mast, and a hook is installed at the front end of the main arm. The tower body of the utility model has a variable height, and after the tower body is raised, the lifting height of the hoisted object is increased; after the tower body is lowered, the whole machine can travel, the transfer is convenient, and the construction time is shortened. The patent with application number 202322511933.4 discloses a lifting device for warehousing, including a fixed column, a first connecting side ear fixedly connected to the upper surface of the fixed column, a connecting rod fixedly connected to the inner surface of the first connecting side ear, a crane hook fixedly connected to the lower surface of the fixed column, a threaded rod connected to the internal thread of the crane hook, a first connecting block fixedly connected to the left surface of the threaded rod, a limiting rod fixedly connected to the rear surface of the first connecting block, a self-locking device, the self-locking device includes an arc-shaped base, a limiting slide rail, a second connecting block, a second connecting side ear, a first rotating shaft, a transmission rod, a second rotating shaft, a third connecting side ear and a self-locking hook. Self-locking is achieved through the self-locking device, and the hook will not be unhooked during the lifting process, making the crane hook safer. In addition, the self-locking device does not use components such as torsion springs that are easy to lose elastic force, so that the hook is more stable and there will be no situation where the spring elastic force is insufficient and cannot be self-locked or unlocked.

[0003] The hooks used on existing cranes are prone to deformation after long-term use, which may lead to the risk of breakage and pose certain safety hazards. How to detect the deformation of the hook in real time is a problem that needs to be solved. Summary of the invention

[0004] The purpose of the present invention is to provide a lifting machinery structure deformation detection device to solve the above technical problems.

[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0006] A device for detecting deformation of a lifting machinery structure, comprising:

[0007] A hook, the hook is semicircular, the left and right ends of the hook are fixed with threaded columns, and the left and right sides of the hook are provided with notches; a support column, the lower end of the support column is threadedly connected to any one of the threaded columns; a deformation detection mechanism, the upper end of the support column is connected to the deformation detection mechanism.

[0008] Preferably, the deformation detection mechanism includes: a detection tube, which is sleeved on a support column; a support tube, which is slidably sleeved on the top of the support column, and the upper end of the support tube is connected to a crane; an upper fixed plate, which is fixedly connected to the top of the detection tube, and the support tube passes through the center of the upper fixed plate and is fixedly connected to the upper fixed plate; a lower fixed plate, which is fixedly connected to the bottom of the detection tube, and the support column passes through the center of the lower fixed plate and is slidably connected to the lower fixed plate; an upper threaded tube, a plurality of upper threaded tubes are penetrated and fixedly arranged on the upper fixed plate, and the plurality of upper threaded tubes are arranged in a circular array around the support tube; a lower threaded tube, a plurality of lower threaded tubes are penetrated and fixedly arranged on the lower fixed plate; a plurality of lower threaded tubes are arranged in a circular array around the support column; a detection rod, which passes through the upper threaded tube and the lower threaded tube in sequence, and the detection rod is threadably connected to the upper threaded tube and the lower threaded tube.

[0009] Preferably, a buffer mechanism is also included, which includes: a buffer column, which is fixed at the bottom of the detection tube, and the support column passes through the buffer column and is slidably connected to the buffer column; a through hole, a plurality of through holes are arranged in a circular array on the buffer column; a spring, a spring is arranged in the through hole; a support seat, which is fixed at the bottom of the through hole, the lower end of the spring is fixedly connected to the support seat, and a guide hole is arranged through the center of the support seat.

[0010] Preferably, the buffer mechanism further comprises: a bearing, wherein the inner ring of the bearing is fixedly sleeved on the upper end of the support column; an inner ring, wherein the inner ring is fixedly sleeved on the outer ring of the bearing; and an outer ring, wherein the outer ring is fixedly connected to the inner ring via a connecting rod.

[0011] Preferably, the buffer mechanism further comprises: a cross bar, one end of which is fixedly connected to the outer ring of the bearing; a vertical bar, the other end of which is fixedly connected to the upper end of the vertical bar; and a hemisphere, the lower end of which is fixedly connected to the hemisphere.

[0012] Preferably, the buffer mechanism further includes: an elastic rope, the elastic rope is located between the inner ring and the outer ring, the lower end of the elastic rope is fixedly connected to the cross bar; and an iron ball, the iron ball is fixedly connected to the upper end of the elastic rope.

[0013] Preferably, the number of the upper threaded tubes is thirteen.

[0014] Preferably, the number of the through holes is the same as the number of the upper threaded tubes.

[0015] Preferably, the number of the lower threaded tubes is the same as the number of the upper threaded tubes.

[0016] Preferably, it also includes a positioning ring, the inner diameter of the positioning ring is larger than the outer diameters of the support tube and the support column, a plurality of guide short tubes are arranged on the positioning ring, the guide short tubes penetrate the positioning ring, the guide short tubes are fixedly connected to the positioning ring, the guide short tubes are arranged in a circular array along the positioning ring, a positioning rod is arranged in the guide short tube, the positioning rod is threadedly connected to the guide short tube, a bearing is sleeved on one side of the positioning rod located in the positioning ring, the inner ring of the bearing is fixedly connected to the positioning rod, the outer ring of the bearing is fixedly connected to the first arc plate, and a plurality of the first arc plates are arranged in a circular array.

[0017] A second arc plate is arranged below the positioning ring, a first slide groove is arranged on the top of the second arc plate, the bottom end of the positioning ring is located in the first slide groove, a second slide groove is opened at the bottom of the outer surface of the positioning ring, the second slide groove is arranged along the circumference of the positioning ring, a plurality of round balls are fixed inside the first slide groove, and the round balls are located in the second slide groove.

[0018] The second arc-shaped plate is provided with a plurality of threaded holes, which are vertically equidistantly arranged. A threaded rod is arranged in any one of the threaded holes, and the threaded rod is threadedly connected to the threaded hole. A third arc-shaped plate is fixedly arranged at one end of the threaded rod.

[0019] The beneficial effects of the present invention are:

[0020] 1. The present invention can quickly detect whether the crane hook is deformed by designing a deformation detection mechanism. The operation is simple and convenient. When the hook is used to hang a heavy object, the hook can swing up and down to compress the spring, which has a buffering effect to prevent the heavy object from pressing the hook hard and causing the hook to deform. During buffering, the spring compressed each time can be different to avoid the same spring being compressed repeatedly, effectively prolonging the service life of each spring and ensuring the buffering effect.

[0021] 2. The present invention makes the third curved plate fit on the surface of the support tube, and then rotates the second curved plate, so that the second curved plate drives the third curved plate to rotate along the surface of the support tube through the threaded rod. During the rotation of the third curved plate, the staff observes whether the third curved plate fits on the surface of the support tube, and can judge whether the support tube is deformed. At the same time, this method can be used to detect whether the support column, which is also cylindrical, is deformed. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a structural schematic diagram of a lifting machinery structure deformation detection device of the present invention;

[0023] Figure 2 It is a schematic diagram of the internal structure of a device for detecting deformation of a lifting machinery structure according to the present invention;

[0024] Figure 3 A crane structure deformation detection device according to the present invention Figure 2 A magnified schematic diagram of part A;

[0025] Figure 4 A crane structure deformation detection device according to the present invention Figure 2 An enlarged schematic diagram of part B;

[0026] Figure 5 It is a structural schematic diagram of a lower fixed plate and a spring of a lifting machinery structure deformation detection device of the present invention;

[0027] Figure 6 This is a structural schematic diagram of a third embodiment of a device for detecting deformation of a lifting machinery structure according to the present invention;

[0028] Figure 7 It is a structural schematic diagram of a second curved plate of a device for detecting deformation of a lifting machinery structure according to the present invention;

[0029] Figure 8 A crane structure deformation detection device according to the present invention Figure 7 Enlarged schematic diagram of part C of FIG.

[0030] 1. Detection rod; 2. Notch; 3. Threaded column; 4. Support tube; 5. Upper threaded tube; 6. Detection tube; 7. Support column; 8. Hook; 9. Upper fixed plate; 10. Buffer column; 11. Iron ball; 12. Elastic rope; 13. Cross bar; 14. Vertical bar; 15. Hemisphere; 16. Spring; 17. Through hole; 18. Outer ring; 19. Inner ring; 20. Bearing; 21. Support seat; 22. Guide hole; 23. Lower threaded tube; 25. Lower fixed plate; 26. Second arc plate; 27. Threaded rod; 28. Positioning rod; 29. ​​Guide short tube; 30. Positioning ring; 31. Bearing; 32. First arc plate; 33. Third arc plate; 34. Second slide groove; 35. First slide groove; 36. Ball; 37. Threaded hole. DETAILED DESCRIPTION

[0031] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further explained below in conjunction with specific implementation methods.

[0032] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0033] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] Example 1

[0035] like Figure 1-5 As shown, a deformation detection device for a lifting mechanical structure includes: a hook 8, which is semicircular, with threaded columns 3 fixed on the left and right ends of the hook 8, and a notch 2 on the left and right sides of the hook 8; a support column 7, with the lower end of the support column 7 being threadedly connected to any one of the threaded columns 3; and a deformation detection mechanism, with the upper end of the support column 7 being connected to the deformation detection mechanism. The hook 8 is used to hang objects, and the notch 2 can not only prevent the objects from falling off the hook 8, but also can be used to detect whether the hook 8 is deformed.

[0036] The deformation detection mechanism includes: a detection tube 6, which is sleeved on the support column 7; a support tube 4, which is slidably sleeved on the top of the support column 7, and the upper end of the support tube 4 is connected to the crane; an upper fixed plate 9, which is fixedly connected to the top of the detection tube 6, and the support tube 4 passes through the center of the upper fixed plate 9 and is fixedly connected to the upper fixed plate 9; a lower fixed plate 25, which is fixedly connected to the bottom of the detection tube 6, and the support column 7 passes through the center of the lower fixed plate 25 and is slidably connected to the lower fixed plate 25; an upper threaded tube 5, a plurality of upper threaded tubes 5 are penetrated and fixedly arranged on the upper fixed plate 9, and the plurality of upper threaded tubes 5 are arranged in a circular array around the support tube 4; a lower threaded tube 23, a plurality of lower threaded tubes 23 are penetrated and fixedly arranged on the lower fixed plate 25; a plurality of lower threaded tubes 23 are arranged in a circular array around the support column 7; a detection rod 1, which passes through the upper threaded tube 5 and the lower threaded tube 23 in sequence, and the detection rod 1 is threadedly connected to the upper threaded tube 5 and the lower threaded tube 23.

[0037] Working principle: thread the threaded column 3 on the right side with the lower end of the support column 7, thread the detection rod 1 with the upper threaded tube 5 and the lower threaded tube 23 in sequence, then rotate the hook 8 to observe whether the lower end of the detection rod 1 can pass through the gap 2 on the right side. If the hook 8 is not deformed, the lower end of the detection rod 1 can just pass through the gap 2. If the hook 8 is deformed, the position of the gap 2 changes, and the lower end of the detection rod 1 cannot pass through the gap 2.

[0038] Then, the threaded column 3 on the left is threadedly connected to the lower end of the support column 7, and then the hook 8 is rotated to observe whether the lower end of the detection rod 1 can pass through the gap 2 on the left.

[0039] Example 2

[0040] like Figure 1-5 As shown, when other parts are the same as those of the embodiment 1, the difference between this embodiment and the embodiment 1 is that it also includes a buffer mechanism, which includes: a buffer column 10, the buffer column 10 is fixedly arranged at the bottom of the detection tube 6, the support column 7 penetrates the buffer column 10 and is slidably connected with the buffer column 10; a through hole 17, a plurality of through holes 17 are arranged in an annular array on the buffer column 10; a spring 16, a spring 16 is arranged in the through hole 17; a support seat 21, the support seat 21 is fixedly arranged at the bottom of the through hole 17, the lower end of the spring 16 is fixedly connected to the support seat 21, and a guide hole 22 is arranged through the center of the support seat 21. Bearing 20, the inner ring of the bearing 20 is fixedly sleeved on the upper end of the support column 7; an inner ring 19, the inner ring 19 is fixedly sleeved on the outer ring of the bearing 20; an outer ring 18, the outer ring 18 is fixedly connected to the inner ring 19 through a connecting rod. The horizontal bar 13 has one end fixedly connected to the outer ring of the bearing 20. The vertical bar 14 has the other end fixedly connected to the upper end of the vertical bar 14. The hemisphere 15 has the lower end fixedly connected to the hemisphere 15. The elastic cord 12 is located between the inner ring 19 and the outer ring 18, and the lower end of the elastic cord 12 is fixedly connected to the horizontal bar 13. The iron ball 11 has the upper end fixedly connected to the iron ball 11.

[0041] When detecting whether the bent hook 8 is deformed, the detection rod 1 passes through between the outer ring 18 and the inner ring 19 , and then passes through the through hole 17 and the guide hole 22 .

[0042] When the deformation of the hook 8 is not detected, the detection rod 1 is removed, and a heavy object is hung on the hook 8 for lifting operations. During the process of the crane driving the hook 8 and the heavy object to move in the air, the hook 8 and the heavy object swing downward, causing the support column 7 to slide slightly up and down on the support tube 4, so that the support column 7 drives the vertical rod 14 to move up and down through the cross bar 13 and insert the compression spring 16 into the through hole 17, which has a buffering effect, avoids the heavy object from pressing the hook 8 hard, and effectively avoids the deformation of the hook 8.

[0043] In the process of the vertical rod 14 moving up and down, when the vertical rod 14 moves up and disengages from the through hole 17, the iron ball 11 slides on the outer ring 18 and the inner ring 19, so that the iron ball 11 pulls the cross bar 13 through the elastic rope 12 and rotates the vertical rod 14, so that the vertical rod 14 moves to the top of another through hole 17, so that the spring 16 compressed by the vertical rod 14 each time is different, which effectively increases the service life of each spring 16 and ensures the buffering effect.

[0044] Example 3

[0045] like Figure 6-8 As shown, when other parts are the same as those in Example 2, the difference between this embodiment and Example 2 is that:

[0046] It also includes a positioning ring 30, the inner diameter of the positioning ring 30 is larger than the outer diameters of the support tube 4 and the support column 7, a plurality of guide short tubes 29 are arranged on the positioning ring 30, the guide short tubes 29 penetrate the positioning ring 30, the guide short tubes 29 are fixedly connected to the positioning ring 30, the guide short tubes 29 are arranged in a circular array along the positioning ring 30, a positioning rod 28 is arranged in the guide short tube 29, the positioning rod 28 is threadedly connected to the guide short tube 29, a bearing 31 is sleeved on one side of the positioning rod 28 located in the positioning ring 30, the inner ring of the bearing 31 is fixedly connected to the positioning rod 28, the outer ring of the bearing 31 is fixedly connected to the first arc plate 32, and a plurality of first arc plates 32 are arranged in a circular array.

[0047] A second arc plate 26 is arranged below the positioning ring 30, a first slide groove 35 is arranged on the top of the second arc plate 26, the bottom end of the positioning ring 30 is located in the first slide groove 35, a second slide groove 34 is opened at the bottom of the outer surface of the positioning ring 30, the second slide groove 34 is arranged along the circumference of the positioning ring 30, a plurality of round balls 36 are fixed inside the first slide groove 35, and the round balls 36 are located in the second slide groove 34.

[0048] The second arc plate 26 is provided with a plurality of threaded holes 37 equidistantly arranged vertically. A threaded rod 27 is arranged in any threaded hole 37 . The threaded rod 27 is threadedly connected to the threaded hole 37 . A third arc plate 33 is fixedly arranged at one end of the threaded rod 27 .

[0049] Taking the detection of whether the support tube 4 is deformed as an example, when in use, the second arc plate 26 is sleeved on the upper end of the support tube 4, and the upper end of the support tube 4 is located inside the multiple first arc plates 32, and then the positioning rod 28 is rotated so that the positioning rod 28 drives the first arc plate 32 to move close to the support tube 4, so that the multiple first arc plates 32 clamp the upper end of the positioning rod 28.

[0050] Then connect the threaded rod 27 to the threaded hole 37 at the top, rotate the threaded rod 27, adjust the position of the third curved plate 33, so that the third curved plate 33 fits on the surface of the support tube 4, and then rotate the second curved plate 26 so that the second curved plate 26 drives the third curved plate 33 to rotate along the surface of the support tube 4 through the threaded rod 27. By observing whether the third curved plate 33 fits on the surface of the support tube 4 during the rotation of the third curved plate 33, it is determined whether the support tube 4 is deformed.

[0051] The threaded rod 27 is connected to the remaining threaded holes 37 in sequence to determine whether other areas of the support tube 4 are deformed.

[0052] The above shows and describes the basic principles and main features of the present invention and the advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention to be protected. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A device for detecting deformation of a lifting machinery structure, characterized in that: include: A hook (8), the hook (8) is semicircular, a threaded column (3) is fixedly provided at the left and right ends of the hook (8), and a notch (2) is provided at the left and right sides of the hook (8); A support column (7), the lower end of which is threadedly connected to any one of the threaded columns (3); A deformation detection mechanism, the upper end of the support column (7) being connected to the deformation detection mechanism; The deformation detection mechanism comprises: A detection tube (6), wherein the detection tube (6) is sleeved on the support column (7); A support pipe (4), wherein the support pipe (4) is slidably sleeved on the top of the support column (7), and the upper end of the support pipe (4) is connected to the crane; An upper fixed plate (9), the upper fixed plate (9) being fixedly connected to the top of the detection tube (6), the support tube (4) passing through the center of the upper fixed plate (9) and being fixedly connected to the upper fixed plate (9); A lower fixed plate (25), the lower fixed plate (25) being fixedly connected to the bottom of the detection tube (6), the support column (7) passing through the center of the lower fixed plate (25) and being slidably connected to the lower fixed plate (25); An upper threaded tube (5), wherein a plurality of upper threaded tubes (5) are fixedly mounted on the upper fixed plate (9), and the plurality of upper threaded tubes (5) are arranged in a circular array around the support tube (4); A lower threaded tube (23), wherein a plurality of lower threaded tubes (23) are fixedly mounted on the lower fixed plate (25); the plurality of lower threaded tubes (23) are arranged in a circular array around the support column (7); A detection rod (1), the detection rod (1) sequentially passing through an upper threaded tube (5) and a lower threaded tube (23), the detection rod (1) being threadedly connected to the upper threaded tube (5) and the lower threaded tube (23); Also included is a buffer mechanism, the buffer mechanism comprising: A buffer column (10), the buffer column (10) being fixedly mounted on the bottom of the detection tube (6), the support column (7) penetrating the buffer column (10) and being slidably connected to the buffer column (10); Through holes (17), the buffer column (10) being provided with a plurality of through holes (17) in an annular array; A spring (16), wherein the through hole (17) is provided with a spring (16); A support seat (21), the support seat (21) is fixedly arranged at the bottom of the through hole (17), the lower end of the spring (16) is fixedly connected to the support seat (21), and a guide hole (22) is provided through the center of the support seat (21).

2. A lifting machinery structure deformation detection device according to claim 1, characterized in that: The buffer mechanism also includes: A bearing (20), wherein the inner ring of the bearing (20) is fixedly sleeved on the upper end of the support column (7); An inner ring (19), wherein the inner ring (19) is fixedly sleeved on an outer ring of a bearing (20); An outer ring (18), wherein the outer ring (18) is fixedly connected to the inner ring (19) via a connecting rod.

3. A lifting machinery structure deformation detection device according to claim 2, characterized in that: The buffer mechanism also includes: A cross bar (13), one end of which is fixedly connected to the outer ring of the bearing (20); A vertical rod (14), wherein the other end of the horizontal rod (13) is fixedly connected to the upper end of the vertical rod (14); A hemisphere (15), wherein the lower end of the vertical rod (14) is fixedly connected to the hemisphere (15).

4. A lifting machinery structure deformation detection device according to claim 3, characterized in that: The buffer mechanism also includes: an elastic cord (12), the elastic cord (12) being located between the inner ring (19) and the outer ring (18), the lower end of the elastic cord (12) being fixedly connected to the cross bar (13); An iron ball (11) is fixedly connected to the upper end of the elastic rope (12).

5. A lifting machinery structure deformation detection device according to claim 4, characterized in that: The curved hook (8) is semicircular.

6. A lifting machinery structure deformation detection device according to claim 5, characterized in that: The number of the upper threaded tubes (5) is thirteen.

7. A lifting machinery structure deformation detection device according to claim 6, characterized in that: The number of the through holes (17) is the same as the number of the upper threaded tubes (5).

8. A lifting machinery structure deformation detection device according to claim 7, characterized in that: The number of the lower threaded tubes (23) is the same as the number of the upper threaded tubes (5).

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