C-shaped hoisting device with adjustable gravity center

Abstract

The invention relates to the technical field of hoisting of horizontal deep cavity components, in particular to a gravity center adjustable C-shaped hoisting device which comprises an L-shaped hoisting tool, an extension arm and a gradienter, hoisted components are matched through a conversion seat, the C-shaped hoisting device is formed by the extension arm and the L-shaped hoisting tool, the adjustment direction of force is converted through a bevel gear structure, and the gravity center is adjusted. The adjusting rod rotating on the vertical beam drives the lead screw on the horizontal beam to rotate, the lead screw drives the lifting ring to move left and right, and the position of the lifting ring structure on the lead screw and a lifted component on the extension arm are trimmed, so that the gravity center is adjusted, and the stable operation of the lifting process is ensured.

Description

Technical Field

[0001] This invention relates to the field of hoisting technology for horizontal deep cavity components, specifically a C-type hoisting device with an adjustable center of gravity. Background Technology

[0002] The location of a component to be installed is a horizontal deep cavity (the cavity diameter is about 1.8m and the depth is about 1.2m). It is impossible to lift the component to the installation location using a regular crane or overhead crane by vertical lifting. Moreover, due to space constraints, it is impossible to lift the component to the installation location manually.

[0003] CN114516584A discloses a self-balancing hoisting device for building construction, including a hoisting structure and a support structure. The support structure includes a platform for supporting workpieces. The hoisting structure is used to hoist the platform and also includes a transmission structure. The transmission structure includes a moving plate and a central rod. The hoisting structure drives the central rod to move a first distance relative to the platform, and the transmission structure drives the moving plate to move a second distance relative to the platform. The second distance is twice the first distance and in the same direction. By designing a platform, a moving plate, and a gear transmission structure in the hoisting device for building construction, and using the central rod and an electric hoist for driving, the overall center of gravity of the hoisting is automatically adjusted.

[0004] Because the components to be installed in the horizontal deep cavity vary in size, shape, and weight, the installation process must ensure that the components are level. After replacing the component to be installed, the center of gravity needs to be adjusted to make it level (see the installation environment of the components). Figure 1 ). Summary of the Invention

[0005] To address the problem that horizontal deep cavity installation components cannot be hoisted in existing technologies, this invention provides a C-type hoisting device with an adjustable center of gravity.

[0006] This invention is achieved through the following technical solution: An adjustable center of gravity C-type lifting device includes: an L-shaped lifting tool, an extension arm, and a level, wherein the level is detachably connected to the horizontal or vertical plane of the component being lifted; The L-shaped lifting device includes a horizontal beam, a vertical beam, a base, and a connecting block. The bottom of the vertical beam is connected to the base, and the top of the vertical beam is connected to the horizontal beam through the connecting block. A rotating adjusting rod is provided on the side of the vertical beam opposite to the horizontal beam, and a rotating lead screw is provided on the horizontal beam. The top of the adjusting rod is connected to one end of the lead screw through a bevel gear structure, and the lifting ring structure is threadedly connected to the lead screw. One end of the extension arm is detachably connected to the base, and the other end of the extension arm is detachably connected to the component being lifted via a lifting adapter.

[0007] Preferably, a first quick-release pin is provided on the extension arm, and the first quick-release pin is connected to the fixing hole on the hoisting adapter.

[0008] Preferably, multiple support assemblies are provided on the vertical beam. Each support assembly includes a base plate and a mounting plate. The base plate is connected to the vertical beam, one end of the mounting plate is connected to the base plate, and the other end has a mounting hole. An adjusting rod passes through the mounting hole and is rotatably connected to the mounting hole.

[0009] Preferably, a hand crank is provided at the bottom of the adjusting rod.

[0010] Preferably, the bevel gear structure includes a meshing first bevel gear and a second bevel gear, the first bevel gear being fixedly connected to the top of the adjusting rod, and the second bevel gear being connected to one end of the lead screw.

[0011] Preferably, the lifting ring structure includes an upper component and a lower component. The upper component is used to connect with the hook of an overhead crane or a gantry crane. The lower component includes a center of gravity adjustment shaft and two connecting plates. The two connecting plates are respectively connected to both ends of the center of gravity adjustment shaft. The top of the connecting plates is connected to the upper component. A lead screw passes through the center of gravity adjustment shaft, and the two are threaded together.

[0012] Preferably, the horizontal beam is made of I-beam, with two connecting plates located on both sides of the web of the I-beam. A pulley is provided at the bottom of the connecting plate, between the connecting plate and the web, and the pulley slides along the lower steel plate of the I-beam as a track.

[0013] Preferably, the connecting plate has a waist-shaped hole, the length axis of the waist-shaped hole is perpendicular to the length axis of the lead screw, and the two ends of the adjusting shaft are located in the waist-shaped hole.

[0014] Preferably, the upper component includes an upper suspension shaft and two suspension plates, with the two suspension plates located at both ends of the upper suspension shaft. One end of each suspension plate is connected to the upper suspension shaft, and the lower end of each suspension plate is connected to the top of the connecting plate via a lower suspension shaft.

[0015] Preferably, the upper and lower lifting shafts are provided with coaxial annular grooves, and the hook is located in the annular groove during hoisting.

[0016] Compared with the prior art, the present invention has the following beneficial effects: This invention discloses an adjustable center of gravity C-type lifting device. Based on the installation environment of components in a horizontal deep cavity and the differences in the number and weight of components installed in the deep cavity, a conversion seat is used to mate with the components to be lifted. An extension arm and an L-shaped lifting device are used to form a C-type lifting device. The direction of force adjustment is changed through a bevel gear structure. An adjusting rod rotating on the vertical beam drives a screw on the horizontal beam to rotate. The screw drives the lifting ring to move left and right. The position of the lifting ring structure on the screw is aligned with the components to be lifted on the extension arm, thereby achieving center of gravity adjustment and ensuring stable lifting.

[0017] Furthermore, the bracket assembly is used to connect the adjusting rod to the vertical beam, while also ensuring the smooth rotation of the adjusting rod, providing support for the adjusting rod, reducing the risk of breakage, and extending its service life.

[0018] Furthermore, the hand crank is designed for easy control by personnel, and the combination of the number of rotations of the adjusting rod and the bevel gear allows for precise adjustment of the center of gravity.

[0019] Furthermore, the adjusting rod rotates, causing the first bevel gear to rotate. Under meshing action, the second bevel gear rotates, causing the lead screw to rotate, and the lead screw drives the center of gravity adjusting shaft to rotate.

[0020] Furthermore, the horizontal beam of the I-beam can not only serve as a balancing structure, but also as a sliding track for the pulleys in the lifting ring structure, which can reduce the friction between the two and allow the center of gravity adjustment shaft to move under a smaller force.

[0021] Furthermore, the oblong hole is designed to ensure smooth installation of the center of gravity adjustment shaft during installation. At the same time, it can compensate for height changes caused by pulley wear during use, thereby extending the service life of the center of gravity adjustment shaft.

[0022] Furthermore, the design of the upper and lower lifting shafts can expand the weight of the lifted products and improve the applicability of the lifting device.

[0023] Furthermore, the annular grooves on the upper and lower lifting shafts are designed to ensure proper engagement with the hook and to position the hook. Additionally, a locking mechanism can be installed on the hook to lock its opening and ensure the safety of the lifting operation.

[0024] Sub-figure description Figure 1 This is a schematic diagram of the installation environment for the components being installed; Figure 2 This is a structural schematic diagram of a C-type hoisting device with an adjustable center of gravity according to the present invention; Figure 3 This is a schematic diagram of the structure of the L-shaped lifting device in a C-shaped lifting device with an adjustable center of gravity according to the present invention; Figure 4 This is a schematic diagram of the extension arm in a C-type hoisting device with an adjustable center of gravity according to the present invention; Figure 5 This is a schematic diagram of the suspended components and adapter in a C-type lifting device with an adjustable center of gravity according to the present invention; Figure 6 This is a schematic diagram of the cooperation relationship between the lead screw and the center of gravity adjustment shaft in a C-type lifting device with an adjustable center of gravity according to the present invention; Figure 7This is a schematic diagram of the connecting plate in a C-type hoisting device with an adjustable center of gravity according to the present invention; Figure 8 This is a schematic diagram of the cooperation structure between the lifting ring assembly and the lead screw in a C-type lifting device with an adjustable center of gravity according to the present invention.

[0025] In the diagram, 1. L-shaped lifting device; 101. Horizontal beam; 102. Vertical beam; 103. Base; 104. Connecting block; 2. Extension arm; 3. Adjusting rod; 4. Lead screw; 5. Bevel gear structure; 6. Lifting ring structure; 601. Upper assembly; 6011. Upper lifting shaft; 6012. Lifting plate; 6013. Lower lifting shaft; 602. Lower assembly; 6021. Center of gravity adjustment shaft; 6022. Connecting plate; 60221. Waist-shaped hole; 60222. Lifting shaft mounting hole; 7. First quick-release pin; 8. Bracket assembly; 9. Hand crank; 10. Pulley; 11. Lifting adapter; 12. Second quick-release pin; 13. Screw. Detailed Implementation

[0026] The following specific embodiments illustrate the implementation of the present invention. Those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification.

[0027] Exemplary embodiments of the present invention will now be described with reference to the accompanying drawings. However, the present invention may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided to fully and completely disclose the invention and to fully convey its scope to those skilled in the art. The terminology used in the exemplary embodiments illustrated in the drawings is not intended to limit the invention. In the drawings, the same units / elements are referred to by the same reference numerals.

[0028] Unless otherwise stated, the terms used herein (including technical terms) have their common meaning as understood by one of ordinary skill in the art. Furthermore, it is understood that terms defined in commonly used dictionaries should be understood to have a meaning consistent with the context of their relevant field, and not to be interpreted as having an idealized or overly formal meaning.

[0029] The present invention will be further described in detail below with reference to specific embodiments. These descriptions are for explanation purposes only and are not intended to limit the scope of the invention.

[0030] Depending on the installation environment of the components, hoisting issues, weight differences of the components, the hoisting device needs to avoid interference with the installation environment, adjust the center of gravity, and facilitate the installation and connection of the components.

[0031] Based on the designed structural model, detailed hoisting design drawings are created, including the process of center of gravity adjustment, the depth and cavity radius of the component installation environment, and the connection and installation of the hoisting device and components. In the hoisting device, the force on the sliding trolley must be borne by the contact between the bearing and the lifting beam track; force on the center of gravity adjustment shaft 6021 in the vertical direction must be avoided. The thread specification of the lead screw 4 can be changed according to the usage requirements.

[0032] This invention discloses a C-type hoisting device with an adjustable center of gravity, referring to... Figure 2 Including: L-shaped lifting device 1 (such as...) Figure 3 ), extension arm (such as Figure 4 The system includes a level, which can be detachably connected to the horizontal or vertical surface of the suspended component to observe whether it is balanced. Furthermore, it can be integrated with visual alarm systems, such as audible and flashing alarms, to facilitate faster identification of the suspended component's status.

[0033] The L-shaped lifting device 1 includes a horizontal beam 101, a vertical beam 102, a base 103, and a connecting block 104. The bottom of the vertical beam 102 is connected to the base 103 via a second quick-release pin 12, and the top of the vertical beam 102 is welded to the horizontal beam 101 via the connecting block 104. A rotating adjusting rod 3 is provided on the side of the vertical beam 102 opposite to the horizontal beam 101. Specifically, multiple support assemblies 8 are provided on the vertical beam 102. Each support assembly 8 includes a base plate and a mounting plate. The base plate is connected to the vertical beam 102 via screws 13. One end of the mounting plate is connected to the base plate, and the other end has a mounting hole. The adjusting rod 3 passes through the mounting hole, and the adjusting rod 3 is rotatably connected to the mounting hole via a bearing.

[0034] A rotating lead screw 4 is provided on the horizontal beam 101. The top of the adjusting rod 3 is connected to one end of the lead screw 4 through a bevel gear structure 5. Specifically, the bevel gear structure 5 includes a meshing first bevel gear and a second bevel gear. The first bevel gear is fixedly connected to the top of the adjusting rod 3, and the second bevel gear is connected to one end of the lead screw 4.

[0035] The lifting ring structure 6 is threadedly connected to the lead screw 4. The lifting ring structure 6 includes an upper component 601 and a lower component 602. The upper component 601 is used to connect with the hook of the overhead crane or crane. The upper component 601 includes an upper lifting shaft 6011 and two lifting plates 6012. The two lifting plates 6012 are located at both ends of the upper lifting shaft 6011. One end of the lifting plate 6012 is connected to the upper lifting shaft 6011. The lower end of the lifting plate 6012 is connected to the top of the connecting plate 6022 through the lower lifting shaft 6013.

[0036] The lower component 602 includes a center-of-gravity adjustment shaft 6021 and two connecting plates 6022. The two connecting plates 6022 are respectively connected to both ends of the center-of-gravity adjustment shaft 6021. The top of the connecting plates 6022 is connected to the upper component 601. The lead screw 4 passes through the center-of-gravity adjustment shaft 6021, and the two are threaded together. The connecting plate 6022 has a waist-shaped hole 60221. The length axis of the waist-shaped hole 60221 is perpendicular to the length axis of the lead screw 4, and both ends of the adjustment shaft are located in the waist-shaped hole 60221.

[0037] The horizontal beam 101 is made of I-beam. Two connecting plates 6022 are located on both sides of the web of the I-beam. The bottom of the connecting plate 6022 is equipped with a pulley 10 through a bearing. The pulley 10 is located between the connecting plate 6022 and the web, and the pulley 10 slides on the lower steel plate of the I-beam as a track.

[0038] The upper lifting shaft 6011 and the lower lifting shaft 6013 are provided with coaxial annular grooves, and the hook is located in the annular groove during hoisting.

[0039] One end of the extension arm 2 is detachably connected to the base 103, and the other end of the extension arm 2 is detachably connected to the component being lifted via a lifting adapter 11. A first quick-release pin 7 is provided on the extension arm 2, and the first quick-release pin 7 is connected to a fixing hole on the lifting adapter 11.

[0040] A hand crank 9 is located at the bottom of the adjusting rod 3. The hand crank 9 is detachably connected to the adjusting rod 3, such as through a spring pin and slot or a rotating damping structure. It can be detached from the adjusting rod 3 when not in use and reattached when needed. In use, the operator rotates the hand crank 9 clockwise or counterclockwise. The hand crank 9 drives the adjusting rod 3 to rotate, which in turn drives the first bevel gear to rotate, which in turn drives the second bevel gear to rotate, which in turn drives the lead screw 4 to rotate. The lead screw 4 drives the center of gravity adjusting shaft 6021 to move left and right, thereby achieving weight balance.

[0041] Combine the L-shaped spreader 1 with the extension boom 2 to form an adjustable center-of-gravity C-shaped lifting device, and install the lifting adapter 11 onto the component being lifted (see...). Figure 5 Then, align the extension arm 2 with the hoisting adapter 11, ensuring that the fixing holes of both are aligned, and use the quick-release pins on the extension arm 2 to fix it in the fixing holes of the extension arm 2 and the adapter.

[0042] Adjust the center of gravity of the lifting device according to the weight of the component being lifted. During the adjustment process, keep the level close to the horizontal or vertical surface of the component and check for horizontality at any time. The specific adjustment process is as follows: Reference Figure 3The schematic diagram of the L-shaped lifting device 1 shown indicates that rotating the hand crank 9 of the L-shaped lifting device 1 transmits the rotational force through the adjusting rod 3. A pair of bevel gears converts the vertical rotational force into a horizontal rotational force, which drives the lead screw 4 to rotate. This rotation, via the thread on the lead screw 4, drives the center-of-gravity adjusting shaft 6021, which is threadedly engaged with it, thus completing the left and right movement (see diagram). Figure 6 This achieves the purpose of adjusting the center of gravity. The vertical length of the L-shaped spreader 1 is determined by the space available for the component installation environment.

[0043] During the hoisting of components, due to gravity, pulleys 10 are installed on both sides of the I-beam and connected to the connecting plate 6022 via bearings. There are two pulleys 10, forming a sliding trolley with the connecting plate 6022 (see structural diagram). Figure 7 The bearing is subjected to force through contact with the track on the welded assembly of the upper suspension beam (see...). Figure 8 This allows gravity to be further transferred to the overhead crane or gantry crane, ultimately achieving the purpose of lifting. The sliding trolley is designed with a waist-shaped hole 60221 for the movement of the center of gravity adjustment shaft 6021. This hole can eliminate the vertical movement range of the bearing on the sliding trolley, ensuring that the force-bearing part is always on the bearing, and avoiding the occurrence of force on the center of gravity adjustment shaft.

[0044] This invention provides an adjustable center-of-gravity C-type lifting device that solves the problem of lifting components in horizontal deep cavity environments. The center of gravity can be adjusted according to the weight of the components, avoiding the need for different lifting tools for different components. The size, strength, and center-of-gravity adjustment accuracy (or speed) of the lifting device can all be adjusted according to actual needs. The design is flexible, and disassembly and assembly are convenient. The device has a compact structure, is easy to use, simple to maintain, and has low manufacturing costs.

[0045] The initial purpose of this invention was to solve the problem of not being able to lift components in a horizontal deep cavity environment. Therefore, once this lifting device was manufactured, it was used in actual production. After application with multiple components, it was shown that the lifting device is very convenient and quick to use. It can not only solve the problem of not being able to lift in the past, but also avoid the need to equip multiple sets of lifting tools due to different component weights because the center of gravity is adjustable. This can reduce costs and improve lifting efficiency.

[0046] The principle of this invention can also be applied to other situations with horizontal deep cavities, confined installation spaces, and where vertical lifting by overhead cranes or hoists is not feasible. The installation environment and the size of the components remain unaffected, and the weight of the components can be appropriately adjusted. This invention can also be applied more broadly to solve more problems in actual production.

[0047] The above description is merely a preferred embodiment of the present invention and is not intended to limit the technical solution of the present invention in any way. Those skilled in the art should understand that, without departing from the spirit and principles of the present invention, the technical solution can be modified and replaced in several simple ways, and these modifications and replacements are all within the scope of protection covered by the claims.

Claims

1. A C-shaped hoisting device with an adjustable center of gravity, characterized in that, include: L-shaped lifting device (1), extension arm and level, the level can be detachably connected to the horizontal or vertical plane of the lifted component; The L-shaped lifting device (1) includes a horizontal beam (101), a vertical beam (102), a base (103), and a connecting block (104). The bottom of the vertical beam (102) is connected to the base (103), and the top of the vertical beam (102) is connected to the horizontal beam (101) through the connecting block (104). A rotating adjusting rod (3) is provided on the side of the vertical beam (102) opposite to the horizontal beam (101). A rotating lead screw (4) is provided on the horizontal beam (101). The top of the adjusting rod (3) is connected to one end of the lead screw (4) through a bevel gear structure (5). The lifting ring structure (6) is threadedly connected to the lead screw (4). One end of the extension arm (2) is detachably connected to the base (103), and the other end of the extension arm (2) is detachably connected to the suspended component via the hoisting adapter (11).

2. The C-type hoisting device with adjustable center of gravity according to claim 1, characterized in that, The extension arm (2) is provided with a first quick-release pin (7), which is connected to the fixing hole on the hoisting adapter (11).

3. The C-type hoisting device with adjustable center of gravity according to claim 1, characterized in that, Multiple support assemblies (8) are provided on the vertical beam (102). The support assembly (8) includes a base plate and a mounting plate. The base plate is connected to the vertical beam (102). One end of the mounting plate is connected to the base plate, and the other end has a mounting hole. An adjusting rod (3) passes through the mounting hole and is rotatably connected to the mounting hole.

4. The C-type hoisting device with adjustable center of gravity according to claim 3, characterized in that, A hand crank (9) is provided at the bottom of the adjusting rod (3).

5. The C-type hoisting device with adjustable center of gravity according to claim 1, characterized in that, The bevel gear structure (5) includes a meshing first bevel gear and a second bevel gear. The first bevel gear is fixedly connected to the top of the adjusting rod (3), and the second bevel gear is connected to one end of the lead screw (4).

6. The C-type hoisting device with adjustable center of gravity according to claim 1, characterized in that, The lifting ring structure (6) includes an upper component (601) and a lower component (602). The upper component (601) is used to connect with the hook of an overhead crane or a crane. The lower component (602) includes a center of gravity adjustment shaft (6021) and two connecting plates (6022). The two connecting plates (6022) are respectively connected to both ends of the center of gravity adjustment shaft (6021). The top of the connecting plate (6022) is connected to the upper component (601). The lead screw (4) passes through the center of gravity adjustment shaft (6021) and the two are threaded together.

7. The C-type hoisting device with adjustable center of gravity according to claim 6, characterized in that, The horizontal beam (101) is made of I-beam. Two connecting plates (6022) are located on both sides of the web of the I-beam. A pulley (10) is provided at the bottom of the connecting plate (6022). The pulley (10) is located between the connecting plate (6022) and the web, and the pulley (10) slides on the lower steel plate of the I-beam as a track.

8. The C-type hoisting device with adjustable center of gravity according to claim 7, characterized in that, The connecting plate (6022) has a waist-shaped hole (60221), the length axis of the waist-shaped hole (60221) is perpendicular to the length axis of the lead screw (4), and the two ends of the adjusting shaft are located in the waist-shaped hole (60221).

9. The C-type hoisting device with adjustable center of gravity according to claim 6, characterized in that, The upper assembly (601) includes an upper hanging shaft (6011) and two hanging plates (6012), which are located at both ends of the upper hanging shaft (6011). One end of the hanging plate (6012) is connected to the upper hanging shaft (6011), and the lower end of the hanging plate (6012) is connected to the top of the connecting plate (6022) through the lower hanging shaft (6013).

10. The C-type hoisting device with adjustable center of gravity according to claim 9, characterized in that, The upper lifting shaft (6011) and the lower lifting shaft (6013) are provided with coaxial annular grooves, and the hook is located in the annular groove during hoisting.

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