A horizontal lifting tool for the installation and handling of a drum

Abstract

A horizontal sling for drum installation and handling belongs to the technical field of handling tools. The present invention includes a bracket, a flange plate is fixedly arranged at the center of the vertical side of the bracket, a ring column flange is fixedly arranged at the center of the flange plate, a floating sleeve is movably sleeved on the ring column flange, two connecting plates are movably sleeved outside the floating sleeve, a distance is left between the two connecting plates, two circular ring side plates are respectively fixedly arranged on the floating sleeve corresponding to the outer sides of the two connecting plates, the tops of the two connecting plates are connected together through two roller mechanisms, a plurality of worm and worm gear reducers are arranged between the two connecting plates, the worm and worm gear reducers are fixed on the connecting plates, and the output rods of the worm and worm gear reducers pass through the vertical side surface of the bracket and are in threaded cooperation with the bracket. The present invention can complete the quick positioning connection of the sling and quickly adjust the inclination angle of the drum after being lifted, providing convenience for the installation and handling of the drum.

Description

Technical Field

[0001] The present invention belongs to the technical field of handling tools, and particularly relates to a horizontal lifting tool for the installation and handling of drum barrels. Background Art

[0002] During production, the assembly and transportation of engine drum barrels require hoisting. During the installation and handling of products using a lifting tool, it is often necessary to design a non-standard lifting tool according to the specific shape of the equipment and its main structure. Currently, commonly used non-standard lifting tools usually include a hook for hoisting the engine, a lifting ring connected to a power supply device (such as a crane), and a crossbeam connecting the hook and the lifting ring to ensure the smooth movement of the engine. Traditional non-standard lifting tools are inconvenient to operate due to their excessive self-weight. When an operator connects the lifting tool to the equipment, if the lifting tool is in a skewed state after lifting, the equipment needs to be lowered, the lifting point needs to be changed, and then the attempt needs to be continued, wasting the handling time. Summary of the Invention

[0003] Aiming at the above problems and making up for the deficiencies of the prior art, the present invention provides a horizontal lifting tool for the installation and handling of drum barrels; the present invention can complete the rapid positioning connection of the lifting tool and quickly adjust the inclination angle of the drum barrel after being lifted, providing convenience for the installation and handling of the drum barrel.

[0004] To achieve the above object, the present invention adopts the following technical solutions.

[0005] The present invention provides a horizontal lifting tool for the installation and handling of drum barrels, which is characterized in that it includes a bracket. A flange plate is fixedly provided at the center of the vertical side of the bracket. A ring column flange is fixedly provided at the center of the flange plate. A floating sleeve is movably sleeved on the ring column flange. Two connecting plates are movably sleeved outside the floating sleeve. A certain distance is left between the two connecting plates. Two circular ring side plates are respectively fixedly provided on the floating sleeve corresponding to the outside of the two connecting plates. The tops of the two connecting plates are connected together through two roller mechanisms. A plurality of worm and worm gear reducers are arranged between the two connecting plates. The worm and worm gear reducer is fixed on the connecting plate. The output rod of the worm and worm gear reducer passes through the vertical side of the bracket and is in threaded cooperation with the bracket. Bolt fine adjustment mechanisms are respectively arranged between the two connecting plates in the up, down, left, and right directions. A lifting arm is also fixedly provided on the connecting plate.

[0006] Further, the bottom side of the bracket is two parallel bottom frames, the vertical side of the bracket is two side frames respectively connected to the two bottom frames, the two side frames intersect to form an X shape, the bottom side and the vertical side of the bracket are perpendicular to each other, and the center point of the flange plate and the end point of the central axis of the ring column flange coincide with the intersection point of the two side frames.

[0007] Further, a large through-hole is provided at the center of the flange plate, and a plurality of small through-holes are evenly distributed around the through-hole on the flange plate.

[0008] Furthermore, the diameter of the large through-hole is equal to the diameter of the front end face of the rotor front shaft of the drum, and the small through-holes correspond one-to-one to the threaded holes on the front end face of the rotor front shaft of the drum and have the same diameter.

[0009] Further, the end of the output rod of the worm and worm gear reducer is connected to the fine adjustment screw through a coupling.

[0010] Further, a rotating handle is connected to the driving rod of the worm and worm gear reducer.

[0011] Further, the roller mechanism includes roller shafts and rollers. Two rollers are fixed on each roller shaft. The rollers can rotate and will not move axially along the roller shafts. The tops of the two connecting plates are connected together through the roller shafts, and the two roller shafts are arranged in parallel.

[0012] Further, the bolt fine adjustment mechanism includes a fixing plate and a fine adjustment bolt. The fixing plate is vertically fixed on the two connecting plates, and the fine adjustment bolt passes through the fixing plate and is threadedly connected to the fixing plate.

[0013] Further, a plurality of observation holes are correspondingly provided on the two connecting plates around the annular column flange.

[0014] Further, the lifting arm is L-shaped, and a lifting hole is provided at the top of the lifting arm.

[0015] Advantages of the present invention.

[0016] The present invention can avoid the docking failure of the rotor front shaft during positioning due to insufficient slight movement ability of the fixture, and it is easier to control the accuracy of clamping; it enables the drum rotor to rotate freely in the circumferential direction during installation, improving the installation efficiency; the worm and worm gear reducer makes it easy for the lifting tool to move towards the position of the drum rotor, with more accurate positioning and reduced labor costs; through the fine adjustment action of the lifting tool relative to the drum rotor, the occurrence of the overall angular deviation phenomenon during lifting can be prevented. Description of the drawings

[0017] In order to make the technical problems, technical solutions and beneficial effects solved by the present invention clearer, the present invention will be further described in detail below in conjunction with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0018] Figure 1 It is a three-dimensional structural schematic diagram of the present invention.

[0019] Figure 2 It is a schematic side view structure of the present invention.

[0020] Figure 3 It is another schematic side view structure of the present invention.

[0021] Figure 4 It is a schematic view after connecting the front shaft of the rotor in the present invention.

[0022] Figure 5 It is a schematic view after connecting the entire drum in the present invention.

[0023] Markings in the figure: 1 is a bracket, 2 is a flange plate, 3 is an annular column flange, 4 is a floating sleeve, 5 is a connecting plate, 6 is an annular side plate, 7 is a worm and worm gear reducer, 8 is a jib, 9 is a large through hole, 10 is a small through hole, 11 is a coupling, 12 is a fine adjustment screw, 13 is a rotating handle, 14 is a roller shaft, 15 is a roller, 16 is a fixing plate, 17 is a fine adjustment bolt, 18 is an observation hole, 19 is a lifting hole, 20 is the front shaft of the rotor, and 21 is the rotor body. Specific embodiments

[0024] As shown in the accompanying drawings, the present embodiment provides a horizontal lifting tool for the installation and handling of a drum, including a bracket 1. The bottom side of the bracket 1 is two parallel bottom frames, and the space between the two bottom frames can accommodate the drum rotor. The vertical side of the bracket 1 is two side frames respectively connected to the two bottom frames, and the two side frames intersect to form an X shape. The bottom side and the vertical side of the bracket 1 are perpendicular to each other.

[0025] A flange plate 2 is fixedly installed at the center of the vertical side of the bracket 1, and an annular column flange 3 is fixedly installed at the center of the flange plate 2. The center point of the flange plate 2 and the end point of the central axis of the annular column flange 3 coincide with the intersection point of the two side frames, ensuring the overall balance after the installation of the drum rotor.

[0026] A large through hole 9 is provided at the center of the flange plate 2, and a plurality of small through holes 10 are evenly distributed around the through hole of the flange plate 2. The diameter of the large through hole 9 is equal to the diameter of the front end face of the front shaft 20 of the rotor of the drum, and the small through holes 10 correspond one by one to the threaded holes on the front end face of the front shaft 20 of the rotor of the drum and have the same diameter. The front shaft 20 of the rotor of the drum is inserted into the annular column flange 3 and positioned by the annular column flange 3. The threaded holes at the front end of the front shaft 20 of the rotor are aligned with the small through holes 10, and then the front shaft 20 of the rotor is fixed to the flange plate 2 through bolts.

[0027] A floating sleeve 4 is movably sleeved on the annular column flange 3, and the floating sleeve 4 can move axially along the annular column flange 3. Two connecting plates 5 are movably sleeved outside the floating sleeve 4, and the connecting plates 5 can move axially along the floating sleeve 4. There is a certain distance between the two connecting plates 5. Two annular side plates 6 are respectively fixed on the outside of the floating sleeve 4 corresponding to the two connecting plates 5, and the axial displacement of the two connecting plates 5 is limited by the two annular side plates 6.

[0028] The tops of two connecting plates 5 are connected together by two roller mechanisms. Each roller mechanism includes a roller shaft 14 and rollers 15. Two rollers 15 are fixed on each roller shaft 14. The tops of the two connecting plates 5 are connected together by the roller shafts 14. The roller shafts 14 are the main support points of the lifting appliance. The two roller shafts 14 are arranged in parallel with a certain gap therebetween, which is used to ensure safety and stability when bearing the drum rotor body 21.

[0029] The rollers 15 mainly play a role in fixedly supporting the rotor body 21 of the drum. The diameter, length and shape of the rollers 15 are determined according to the structure of the rotor body 21. The rollers 15 can rotate and will not move axially along the roller shafts 14. When the drum is lifted, the rotor body 21 can rotate on the lifting appliance, which is convenient for aligning the threaded holes of the front shaft 20 of the rotor with the small through holes 10 of the flange plate 2, and restricts the axial movement of the rotor body 21 on the lifting appliance, protecting the rotor body 21 from falling when being lifted, and playing a role of buffering and protection.

[0030] A plurality of worm and worm gear reducers 7 are arranged between the two connecting plates 5. The worm and worm gear reducers are fixed on the connecting plates 5. The output rod of the worm and worm gear reducer 7 passes through the vertical side surface of the bracket 1 and is in threaded cooperation with the bracket 1. A rotating handle 13 is connected to the driving rod of the worm and worm gear reducer 7. By rotating the driving rod of the worm and worm gear reducer 7, the connecting plate 5 can be quickly moved relative to the bracket 1 to adjust the positions of the connecting plate 5 and the roller mechanism.

[0031] The end of the output rod of the worm and worm gear reducer 7 is connected to the fine adjustment screw rod 12 through a coupling 11. The position of the connecting plate 5 and the roller mechanism can be finely adjusted manually by turning the fine adjustment screw rod 12 with a wrench.

[0032] When the drum and the lifting appliance are lifted, if an angular inclination occurs, the worm can be rotated to axially move the drum in the horizontal position to adjust its center of mass position, ensuring that the inclination angle is within a safe range when being lifted.

[0033] Bolt fine adjustment mechanisms are respectively arranged between the two connecting plates 5 in the upper, lower, left and right directions. Each bolt fine adjustment mechanism includes a fixing plate 16 and a fine adjustment bolt 17. The fixing plate 16 is vertically fixed on the two connecting plates 5. The fine adjustment bolt 17 passes through the fixing plate 16 and is in threaded connection with the fixing plate 16. By turning the fine adjustment bolt 17 to press against the floating sleeve 4, the connecting plate 5 can be finely adjusted in the up, down, left and right directions, which is convenient for alignment. After the alignment connection is completed, it can also play a certain clamping role to ensure that the floating sleeve 4 will not slide after the front shaft 20 of the rotor is installed.

[0034] A plurality of observation holes 18 are correspondingly arranged around the annular column flange 3 on the two connecting plates 5, which are used to observe the tightening position of the bolt fine adjustment mechanism pressing against the floating sleeve 4.

[0035] A boom 8 is also fixed on the connecting plate 5. The boom 8 is L-shaped, and a lifting hole 19 is provided at the top of the boom 8.

[0036] The usage method is as follows.

[0037] Taking the 1st - 3rd stages of the engine drum as an example, the drum includes a rotor body 21 and a front rotor shaft 20.

[0038] First, through the adjusting bolt fine - tuning mechanism, ensure that the floating sleeve 4 is in a floating state. Position the front rotor shaft 20 through the ring - column flange 3. When docking, adjust the position between the ring - column flange 3 and the floating sleeve 4 through the bolt fine - tuning mechanism to facilitate docking. After connection, alignment is required to ensure that the threaded hole and the small through - hole 10 on the front end face of the front rotor shaft 20 are aligned. Observe the tightening position of the bolt fine - tuning mechanism pressing against the floating sleeve 4 through the observation hole 18 to ensure that the front rotor shaft 20 does not move circumferentially and axially.

[0039] After the front rotor shaft 20 is connected to the lifting tool, screw the bolt fine - tuning mechanism to make the lifting tool move axially slightly relative to the rotor body 21, ensuring that the rollers 15 on the roller shaft 14 are fully in contact with the internal structure of the rotor body 21. During installation, perform secondary positioning by rotating the rotor body 21 circumferentially to ensure positioning accuracy and improve installation accuracy.

[0040] Connect the hook to the lifting hole 19 and carry out lifting.

[0041] Finally, after lifting, the lifting tool and the drum as a whole may be deflected at a certain angle. The axial position of the drum relative to the lifting tool can be adjusted by screwing the driving rod of the worm - gear reducer 7 or the fine - tuning screw 12. Without the need for re - lifting, the center - of - gravity position can be quickly adjusted, improving the handling and installation efficiency.

[0042] It can be understood that the above - mentioned specific description of the present invention is only used to illustrate the present invention and is not limited to the technical solutions described in the embodiments of the present invention. Those of ordinary skill in the art should understand that the present invention can still be modified or equivalently replaced to achieve the same technical effects; as long as it meets the usage requirements, it is within the protection scope of the present invention.

Claims

1. A horizontal sling for the installation and handling of a drum, characterized in that, It includes a bracket (1), a flange plate (2) is fixedly installed at the center of the vertical side of the bracket (1), a ring column flange (3) is fixedly installed at the center of the flange plate (2), a floating sleeve (4) is movably sleeved on the ring column flange (3), two connecting plates (5) are movably sleeved outside the floating sleeve (4), a certain distance is left between the two connecting plates (5), two circular ring side plates (6) are respectively fixedly installed on the floating sleeve (4) corresponding to the outer sides of the two connecting plates (5), the tops of the two connecting plates (5) are connected together through two roller mechanisms, a plurality of worm and worm gear reducers (7) are arranged between the two connecting plates (5), the worm and worm gear reducers are fixed on the connecting plates (5), the output rod of the worm and worm gear reducer (7) passes through the vertical side of the bracket (1) and is in threaded cooperation with the bracket (1), bolt fine adjustment mechanisms are respectively arranged between the two connecting plates (5) in the up, down, left and right directions, and a lifting arm (8) is also fixedly installed on the connecting plate (5); A large through hole (9) is arranged at the center of the flange plate (2), and a plurality of small through holes (10) are evenly distributed around the through hole on the flange plate (2); The diameter of the large through hole (9) is equal to the front end face diameter of the rotor front shaft (20) of the drum, and the small through holes (10) correspond one by one to the threaded holes on the front end face of the rotor front shaft (20) of the drum and have equal diameters; The roller mechanism includes a roller shaft (14) and rollers (15), two rollers (15) are fixedly installed on each roller shaft (14), the rollers (15) can rotate and will not move axially along the roller shaft (14), the tops of the two connecting plates (5) are connected together through the roller shaft (14), the roller shaft (14) is the main support point of the lifting appliance, the two roller shafts (14) are arranged in parallel and have a certain gap therebetween to ensure safety and stability when bearing the drum rotor body (21), the rollers (15) mainly play a role in fixedly supporting the drum rotor body (21), the diameter, length and shape of the rollers (15) are determined according to the structure of the rotor body (21), the rollers (15) can rotate and will not move axially along the roller shaft (14), so that the rotor body (21) can rotate on the lifting appliance when the drum is lifted, which is convenient for the threaded holes of the rotor front shaft (20) to be aligned with the small through holes (10) of the flange plate (2), and restricts the axial movement of the rotor body (21) on the lifting appliance to protect the rotor body (21) from falling when being lifted, playing a role of buffering and protection.

2. The horizontal sling for the installation and handling of a drum according to claim 1, characterized in that, The bottom side of the bracket (1) is two parallel bottom frames, the vertical side of the bracket (1) is two side frames respectively connected to the two bottom frames, the two side frames intersect to form an X shape, the bottom side and the vertical side of the bracket (1) are perpendicular to each other, and the center point of the flange plate (2) and the central axis end point of the ring column flange (3) coincide with the intersection point of the two side frames.

3. The horizontal sling for the installation and handling of a drum according to claim 1, characterized in that, The end of the output rod of the worm and worm gear reducer (7) is connected to a fine adjustment screw rod (12) through a coupling (11).

4. The horizontal sling for the installation and handling of a drum according to claim 1, characterized in that, A rotary handle (13) is connected to the drive rod of the worm and worm gear reducer (7).

5. The horizontal sling for the installation and handling of a drum according to claim 1, characterized in that, The bolt fine-tuning mechanism comprises a fixing plate (16) and a fine-tuning bolt (17). The fixing plate (16) is vertically fixed on the two connecting plates (5), and the fine-tuning bolt (17) passes through the fixing plate (16) and is threadedly connected to the fixing plate (16).

6. The horizontal sling for the installation and handling of a drum according to claim 1, characterized in that, A plurality of observation holes (18) are correspondingly arranged on the two connecting plates (5) around the ring column flange (3).

7. The horizontal sling for the installation and handling of a drum according to claim 1, characterized in that, The lifting arm (8) is L-shaped, and a lifting hole (19) is arranged at the top of the lifting arm (8).

Images