Lifting device and lifting apparatus

Abstract

The application relates to a lifting tool structure and a lifting equipment. The lifting tool structure comprises a support structure with two installation channels arranged at intervals, two first rods and two second rods. The first rods penetrate the installation channels along a second direction. The second rods have first sections and second sections. The first sections are arranged in the corresponding installation channels along the second direction and are fixedly connected with the support structure. The second sections are used for penetrating into the inner holes of the workpieces to be hoisted, and the side walls of the second sections are provided with a plurality of adjusting grooves. The first rods arranged in the same installation channel penetrate the second rods, the diameters of the ends of the first rods away from the support structure are greater than the inner diameters of the second sections, and the end portions can slide along the second direction, so that the outer diameters of the second sections are expanded. After the outer diameters of the second sections are expanded, the second sections can be tightly combined with the inner holes of the workpieces to be hoisted, the workpieces can be prevented from falling off in the lifting process, and the stability and reliability of the lifting are improved. The adjusting grooves can adjust the outer diameters of the second rods according to the sizes of the inner holes of the workpieces, and the adaptability of the lifting tool is enhanced.

Description

Technical Field

[0001] This application relates to the field of machining, and more particularly to a lifting device structure and lifting equipment. Background Technology

[0002] In the field of machining, workpiece hoisting is a common operation, usually relying on equipment such as cranes and hoists. Hoisting equipment needs to be connected to the workpiece using lifting devices to achieve stable and reliable lifting and transfer. Currently commonly used lifting devices include chain slings, clamp slings, wire rope slings, and electromagnetic slings.

[0003] For large workpieces with internal bore structures (such as bearing caps, disc-shaped workpieces, etc.), traditional lifting tools cannot stably and reliably lift large workpieces, and the workpieces are prone to sliding or falling off during the lifting process. Utility Model Content

[0004] This application provides a lifting device and a lifting structure, which aims to provide a lifting device structure suitable for large workpieces with internal holes, thereby improving the stability and reliability of lifting and transporting large workpieces with internal holes.

[0005] To achieve the above objectives, according to a first aspect of this application, a lifting device structure is provided, having intersecting first and second directions, the lifting device structure comprising:

[0006] The support structure, along the first direction, has two spaced-apart mounting channels;

[0007] Two first poles correspond one-to-one with the installation channels, and the first poles pass through the corresponding installation channels along the second direction.

[0008] Two second rods correspond one-to-one with the installation channels. The second rod has a first section and a second section connected together. The second section is used to pass through the inner hole of the workpiece to be hoisted. The side wall of the second section has multiple adjustment grooves. The first section passes through the corresponding installation channel along the second direction and is fixedly connected to the support structure. The second rod is a hollow rod.

[0009] The first rod, located in the same installation channel, passes through the second rod, and the diameter of the end of the first rod away from the support structure is larger than the inner diameter of the second section; the first rod can slide along the second direction to expand the outer diameter of the second section.

[0010] Optionally, multiple adjustment grooves are spaced apart circumferentially along the second section and extend axially along the second section to the end of the second section opposite to the support structure.

[0011] Optionally, the end face of the first rod away from the support structure can be flush with the end face of the second section of the second rod away from the support structure; the outer peripheral wall of the end of the first rod away from the support structure is a first inclined surface, and the inner peripheral wall of the end of the second section of the second rod away from the support structure is a second inclined surface, and the first and second inclined surfaces are contour-following designs.

[0012] Optionally, the support structure includes a first plate and a second plate arranged opposite to each other along the second direction, the first plate having two first holes spaced apart along the first direction, and the second plate having two second holes spaced apart along the first direction;

[0013] The first hole and the second hole correspond one-to-one. The corresponding first hole and the second hole are set opposite each other in the second direction, together forming an installation channel.

[0014] Optionally, the first rod passes through the first hole and the second hole and is fixedly connected to the first plate.

[0015] Optionally, two fixing structures are fixedly connected to the second plate. The fixing structures correspond one-to-one with the second holes, and the fixing structures are provided with a third hole. The projection of the third hole and the corresponding second hole on the second plate overlaps, and the first segment passes through the third hole.

[0016] The side wall of the fixed structure has at least two fixing holes, which allow the fixing element to pass through and fix the second rod.

[0017] Optionally, the fixing structure includes a fixing plate, with a first protrusion and a second protrusion facing each other on both sides of the fixing plate, and a third hole passing through the first protrusion, the fixing plate and the second protrusion.

[0018] The fixing plate is fixedly connected to the second plate. The first protrusion is located between the first plate and the second plate, and the second protrusion passes through the second hole and protrudes on the side of the second plate away from the first plate.

[0019] Optionally, the fixing hole is formed on the side wall of the first protrusion.

[0020] Optionally, it also includes an adjustment structure located between the first plate and the second plate and fixedly connected to the first plate and the second plate, for adjusting the distance between the first plate and the second plate.

[0021] Optionally, the adjustment structure includes a first part and a second part separated from each other and an adjustment rod. The first part is fixedly connected to the first plate, and the second part is fixedly connected to the second plate. The first part has a first threaded hole, and the second part has a second threaded hole. The threads of the first threaded hole and the second threaded hole are opposite in direction.

[0022] The adjusting rod includes a rod body and a knob fixedly connected to the middle of the rod body. The two ends of the rod body are respectively screwed to the first threaded hole and the second threaded hole.

[0023] Optionally, a lifting ring is provided on the side of the first plate opposite to the second rod.

[0024] According to a second aspect of this application, a lifting device is provided, comprising any of the lifting structures disclosed above.

[0025] One of the above technical solutions has the following advantages or beneficial effects: The first rod is fixedly connected to the support structure. When the support structure is fixedly connected to the crane, the crane can drive the first rod to move upward when lifting the support structure. The end of the first rod away from the support structure passes through the second rod, and the diameter of the end of the first rod away from the support structure is larger than the inner diameter of the second section of the second rod. Multiple adjustment grooves are provided on the second section of the second rod. When the first rod moves upward, it can slide in the second rod along a second direction, thereby expanding the outer diameter of the second section. The second section of the second rod can pass into the inner hole of the workpiece to be lifted. When the outer diameter of the second section expands, it can ensure that the second section fits tightly with the inner hole of the workpiece to be lifted, thereby preventing the workpiece from sliding or falling off during the lifting process and improving the stability and reliability of the lifting process. Through the design of the adjustment grooves, the outer diameter of the second section can be adjusted according to the inner hole size of different workpieces to be lifted, enhancing the adaptability of the lifting device. At the same time, when the hoisting is finished, the first rod returns to its original position, and the outer diameter of the second section will also decrease accordingly, which facilitates the separation of the hoisting structure and the workpiece to be hoisted, and enables quick disassembly.

[0026] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0029] Figure 1 This is a schematic diagram of the lifting device structure provided in the embodiments of this application;

[0030] Figure 2 This is an exploded view of the lifting device structure provided in the embodiments of this application;

[0031] Figure 3 This is a top view of the lifting device structure provided in the embodiments of this application;

[0032] Figure 4 yes Figure 3 Cross-sectional view at point AA.

[0033] Explanation of reference numerals in the attached figures:

[0034] 1. Supporting structure; 11. First plate; 111. First hole; 12. Second plate; 121. Second hole;

[0035] 2. First rod; 21. First inclined plane;

[0036] 3. Second rod; 31. First section; 32. Second section; 321. Adjustment groove; 322. Second inclined plane;

[0037] 4. Hanging rings;

[0038] 5. Fixing structure; 51. Third hole; 52. Fixing hole; 53. Fixing plate; 54. First protrusion; 55. Second protrusion;

[0039] 6. Adjustment structure; 61. First part; 611. First threaded hole; 62. Second part; 621. Second threaded hole; 63. Adjustment rod; 631. Rod body; 632. Knob. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0041] This application discloses a lifting device structure; please refer to [link / reference]. Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the lifting device structure provided in the embodiments of this application; Figure 2 This is an exploded view of the lifting device structure provided in the embodiments of this application.

[0042] The lifting device structure disclosed in this application has intersecting first and second directions. The lifting device structure includes: a support structure 1, two first rods 2, and two second rods 3. Along the first direction, the support structure 1 has two spaced-apart installation channels. The two first rods 2 correspond one-to-one with the installation channels and each passes through the corresponding installation channel along the second direction. The two second rods 3 also correspond one-to-one with the installation channels. The second rods 3 are hollow rods with connected first segments 31 and second segments 32. The first segments 31 of each second rod 3 pass through the corresponding installation channels along the second direction and are fixedly connected to the support structure 1. The second segments 32 of each second rod 3 are used to pass into the inner hole of the workpiece to be lifted. The side wall of the second segment 32 has multiple adjusting grooves 321. The first rods 2 located in the same installation channel pass through the second rods 3, and the diameter of the end of the first rod 2 away from the support structure 1 is larger than the inner diameter of the second segment 32; the first rod 2 can slide along the second direction to expand the outer diameter of the second segment 32.

[0043] The first rod 2 is fixedly connected to the support structure 1. When the support structure 1 is fixedly connected to the crane, the crane can drive the first rod 2 to move upward when lifting the support structure 1. The end of the first rod 2 facing away from the support structure 1 passes through the second rod 3, and the diameter of the end of the first rod 2 facing away from the support structure 1 is larger than the inner diameter of the second section 32 of the second rod 3. The second section 32 of the second rod 3 has multiple adjusting grooves 321. When the first rod 2 moves upward, it can slide in the second direction within the second rod 3, thereby expanding the outer diameter of the second section 32. The second section 32 of the second rod 3 can pass into the inner hole of the workpiece to be lifted. When the outer diameter of the second section 32 expands, it ensures that the second section 32 fits tightly with the inner hole of the workpiece to be lifted, thereby preventing the workpiece from sliding or falling off during the lifting process and improving the stability and reliability of the lifting process. Through the design of the adjusting grooves 321, the outer diameter of the second section 32 can be adjusted according to the inner hole size of different workpieces to be lifted, enhancing the adaptability of the lifting device. At the same time, when the hoisting is completed and the first rod 2 returns to its original position, the outer diameter of the second section 32 will also shrink, which facilitates the separation of the hoisting structure and the workpiece to be hoisted, and enables rapid disassembly.

[0044] In some embodiments, a plurality of adjusting grooves 321 are circumferentially spaced along the second segment 32 and extend axially along the second segment 32 to the end of the second segment 32 opposite to the support structure 1. The circumferentially spaced adjusting grooves 321 allow the second segment 32 to expand uniformly outward during expansion, ensuring a consistent pressure distribution within the workpiece bore, thereby improving stability and safety. Simultaneously, the spaced adjusting grooves 321 help reduce stress concentration in the material during expansion, lowering the risk of structural fatigue and damage, thus extending the service life of the lifting device structure. The axial extension of the adjusting grooves 321 to the end of the second segment 32 opposite to the support structure 1 allows the first rod 2 to expand at different positions within the second segment 32. This enables the lifting device structure to adapt to workpiece bores of different depths and diameters, enhancing its adaptability.

[0045] In some embodiments, when the workpiece is not being hoisted, the end face of the first rod 2 facing away from the support structure 1 is flush with the end face of the second segment 32 of the second rod 3 facing away from the support structure 1. The outer peripheral wall of the end of the first rod 2 facing away from the support structure 1 is a first inclined surface 21, and the inner peripheral wall of the end of the second segment 32 of the second rod 3 facing away from the support structure 1 is a second inclined surface 322. The first inclined surface 21 and the second inclined surface 322 are contoured designs. When the first rod 2 slides along the second direction, the contoured design of the first inclined surface 21 and the second inclined surface 322 can guide the end of the first rod 2 facing away from the support structure 1 to slide smoothly along the second direction inside the second rod 3, so that the second segment 32 of the second rod 3 expands.

[0046] In some embodiments, the support structure 1 includes a first plate 11 and a second plate 12 disposed opposite to each other along a second direction. The first plate 11 has two first holes 111 spaced apart along a first direction, and the second plate 12 has two second holes 121 spaced apart along the first direction. The first holes 111 and the second holes 121 correspond one-to-one and are disposed opposite to each other in the second direction, forming an installation channel. A first rod 2 passes through the first holes 111 and the second holes 121 and is fixedly connected to the first plate 11. The first segment 31 of the second rod 3 passes through the corresponding second hole 121 of the installation channel and is fixedly connected to the second plate 12. Within the second hole 121 of the installation channel, the first rod 2 passes through the second rod 3, and the end of the first rod 2 facing away from the first plate 11 can extend into the second segment 32 of the second rod 3.

[0047] The first plate 11 and the second plate 12, which are arranged opposite each other, provide a stable frame structure. The first hole 111 and the second hole 121 can provide two support points for the assembly consisting of a set of first rods 2 and second rods 3, ensuring that the first rods 2 and second rods 3 will not move or shake unnecessarily during hoisting.

[0048] In some embodiments, a lifting ring 4 is provided on the side of the first plate 11 opposite to the second rod 3. The lifting ring 4 facilitates the connection of the lifting structure to a crane or other equipment.

[0049] Reference Figure 3 and Figure 4 In some embodiments, the second rod 3 and the second plate 12 are fixedly connected in the following manner: Specifically, two fixing structures 5 are fixedly connected to the second plate 12, and each fixing structure 5 corresponds one-to-one with a second hole 121. A third hole 51 is formed through the fixing structure 5, and the projection of the third hole 51 onto the corresponding second hole 121 on the second plate 12 overlaps with the projection of the second hole 121. After the first segment 31 passes through the second hole 121, it also passes through the third hole 51. At least two fixing holes 52 are formed on the side wall of the fixing structure 5, allowing a fixing member to pass through and fix the second rod 3. It should be noted that in some embodiments, the fixing member is a fixing bolt, and the inner wall of the fixing hole 52 has threads. The fixing member is threaded into the fixing hole 52 and abuts against the outer peripheral wall of the first segment 31 of the second rod 3. In some embodiments, four fixing holes 52 are formed on the side wall of the fixing structure 5, and the four fixing holes 52 are arranged in pairs opposite each other. By fixing the second rod 3 in the above manner, the position of the second rod 3 can be finely adjusted based on the depth of the inner hole of the workpiece to be lifted before hoisting, thereby improving the adaptability of the lifting device structure.

[0050] Specifically, in the embodiments disclosed in this application, the fixing structure 5 includes a fixing plate 53. The fixing plate 53 has a first protrusion 54 and a second protrusion 55 arranged opposite each other on both sides. A third hole 51 passes through the first protrusion 54, the fixing plate 53, and the second protrusion 55. The fixing plate 53 is fixedly connected to the second plate 12. The first protrusion 54 is located between the first plate 11 and the second plate 12. The second protrusion 55 passes through the second hole 121 and protrudes from the side of the second plate 12 opposite to the first plate 11. At least two fixing holes 52 are spaced apart on the sidewall of the first protrusion 54. The second protrusion 55 passing through the second hole 121 increases the contact area between the fixing structure 5 and the second plate 12, making the connection of the fixing structure 5 on the second plate 12 more stable.

[0051] In some other embodiments, the lifting device structure further includes an adjustment structure 6. The adjustment structure 6 is located between the first plate 11 and the second plate 12, and is fixedly connected to the first plate 11 and the second plate 12, for adjusting the distance between the first plate 11 and the second plate 12. By adjusting the distance between the first plate 11 and the second plate 12, the initial position of the end of the first rod 2 facing away from the support structure 1 within the second segment 32 of the second rod 3 can be adjusted, thereby adjusting the initial outer diameter of the second segment 32 of the second rod 3 before lifting. Specifically, when the end of the first rod 2 facing away from the support structure 1 is level with the end of the second segment 32 of the second rod 3 facing away from the support structure 1, the initial outer diameter of the second segment 32 of the second rod 3 before lifting is at its minimum, and it is in an unexpanded state; when the end of the first rod 2 facing away from the support structure 1 is located within the second segment 32 of the second rod 3, and there is a distance between it and the end of the second segment 32 facing away from the support structure 1, the initial outer diameter of the second segment 32 of the second rod 3 before lifting has been expanded. The adjustment structure 6 provides the ability to flexibly adjust the distance between the first plate 11 and the second plate 12, thereby allowing the initial positions of the first rod 2 and the second rod 3, as well as the initial outer diameter of the second rod 3, to be pre-adjusted according to different lifting requirements and the inner diameter of the workpiece to be lifted. The adjustment structure 6 allows the outer diameter of the second segment 32 of the second rod 3 to be adjusted to a suitable initial size before lifting, thus reducing the amount of expansion required during lifting and improving lifting efficiency. For example, if the inner diameter of the workpiece to be lifted is large, the outer diameter of the second segment 32 can be pre-expanded to near the size of the workpiece's inner diameter before lifting, reducing adjustment time during lifting.

[0052] Specifically, the adjustment structure 6 provided in this embodiment includes a first part 61 and a second part 62 separated from each other, and an adjustment rod 63. The first part 61 is fixedly connected to the first plate 11, and the second part 62 is fixedly connected to the second plate 12. The first part 61 has a first threaded hole 611, and the second part 62 has a second threaded hole 621. The threads of the first threaded hole 611 and the second threaded hole 621 are in opposite directions. The adjustment rod 63 includes a rod body 631 and a knob 632 fixedly connected to the middle of the rod body 631. The two ends of the rod body 631 are respectively screwed to the first threaded hole 611 and the second threaded hole 621. When adjusting the distance between the first plate 11 and the second plate 12, rotating the knob 632 will cause the rod body 631 to rotate simultaneously in the first threaded hole 611 and the second threaded hole 621. Since the threads of the first threaded hole 611 and the second threaded hole 621 are in opposite directions, the first part 61 and the second part 62 will move simultaneously away from each other or move simultaneously closer to each other.

[0053] This application also discloses a hoisting device, including any of the hoisting structures disclosed above.

[0054] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0055] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0056] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0057] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A lifting device structure, characterized in that, The lifting device structure includes, having intersecting first and second directions: The support structure (1) has two spaced-apart mounting channels along the first direction. Two first rods (2) correspond one-to-one with the mounting channels, and the first rods (2) pass through the corresponding mounting channels along the second direction; Two second rods (3) correspond one-to-one with the installation channels. The second rods (3) are hollow rods. The second rods (3) have a first section (31) and a second section (32) connected to each other. The first section (31) passes through the corresponding installation channel along the second direction and is fixedly connected to the support structure (1). The second section (32) is used to pass through the inner hole of the workpiece to be hoisted. The side wall of the second section (32) is provided with multiple adjustment grooves (321). The first rod (2) located in the same mounting channel passes through the second rod (3), and the diameter of the end of the first rod (2) away from the support structure (1) is greater than the inner diameter of the second segment (32); the first rod (2) can slide along the second direction to expand the outer diameter of the second segment (32).

2. The lifting device structure according to claim 1, characterized in that, The plurality of adjustment grooves (321) are arranged circumferentially along the second segment (32) and extend axially along the second segment (32) to the end of the second segment (32) opposite to the support structure (1).

3. The lifting device structure according to claim 1, characterized in that, The end face of the first rod (2) away from the support structure (1) is flush with the end face of the second segment (32) of the second rod (3) away from the support structure (1); The outer peripheral wall of the end of the first rod (2) away from the support structure (1) is a first inclined surface (21), and the inner peripheral wall of the end of the second segment (32) of the second rod (3) away from the support structure (1) is a second inclined surface (322). The first inclined surface (21) and the second inclined surface (322) are contoured designs.

4. The lifting device structure according to claim 1, characterized in that, The support structure (1) includes a first plate (11) and a second plate (12) arranged opposite to each other along the second direction. The first plate (11) has two first holes (111) spaced apart along the first direction, and the second plate (12) has two second holes (121) spaced apart along the first direction. The first hole (111) and the second hole (121) correspond one-to-one. The corresponding first hole (111) and the second hole (121) are arranged opposite to each other in the second direction, and together they form an installation channel.

5. The lifting device structure according to claim 4, characterized in that, The first rod (2) passes through the first hole (111) and the second hole (121) and is fixedly connected to the first plate (11).

6. The lifting device structure according to claim 4, characterized in that, Two fixing structures (5) are fixedly connected to the second plate (12). The fixing structures (5) correspond one-to-one with the second hole (121). The fixing structure (5) has a third hole (51). The projection of the third hole (51) and the corresponding second hole (121) on the second plate (12) overlaps. The first segment (31) passes through the third hole (51). The side wall of the fixing structure (5) is provided with at least two fixing holes (52), which allow the fixing member to pass through and fix the second rod (3).

7. The lifting device structure according to claim 6, characterized in that, The fixing structure (5) includes a fixing plate (53), and the fixing plate (53) has a first protrusion (54) and a second protrusion (55) arranged opposite to each other on both sides. The third hole (51) passes through the first protrusion (54), the fixing plate (53) and the second protrusion (55). The fixing plate (53) is fixedly connected to the second plate (12). The first protrusion (54) is located between the first plate (11) and the second plate (12). The second protrusion (55) passes through the second hole (121) and is exposed on the side of the second plate (12) away from the first plate (11).

8. The lifting device structure according to claim 7, characterized in that, The fixing hole (52) is opened on the side wall of the first protrusion (54).

9. The lifting device structure according to claim 4, characterized in that, It also includes an adjustment structure (6), located between the first plate (11) and the second plate (12), and fixedly connected to the first plate (11) and the second plate (12), for adjusting the distance between the first plate (11) and the second plate (12).

10. The lifting device structure according to claim 9, characterized in that, The adjustment structure (6) includes a first part (61) and a second part (62) separated from each other, and an adjustment rod (63). The first part (61) is fixedly connected to the first plate (11), and the second part (62) is fixedly connected to the second plate (12). The first part (61) has a first threaded hole (611), and the second part (62) has a second threaded hole (621). The thread directions of the first threaded hole (611) and the second threaded hole (621) are opposite. The adjusting rod (63) includes a rod body (631) and a knob (632) fixedly connected to the middle of the rod body (631). The two ends of the rod body (631) are respectively spirally connected to the first threaded hole (611) and the second threaded hole (621).

11. The lifting device structure according to claim 4, characterized in that, A lifting ring (4) is provided on the side of the first plate (11) away from the second rod (3).

12. A hoisting device, characterized in that, Includes the lifting structure as described in any one of claims 1-11.

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