Hoisting device
By designing the lifting point assembly and lifting lug assembly of the lifting device, and utilizing the automated operation of the locking tongue and transition ring, the risk of personnel slipping and falling and the safety issues during the diesel engine lifting process were solved, achieving a fast and safe lifting process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SINOPEC OILFIELD SERVICE CORPORATION
- Filing Date
- 2024-10-08
- Publication Date
- 2026-04-10
AI Technical Summary
In oil drilling operations, there is a risk of personnel slipping and falling during the hoisting of diesel engines, and existing measures increase the cost of disassembly and assembly and safety hazards, failing to effectively improve hoisting speed and safety.
Design a lifting device including a lifting point assembly and a lifting lug assembly. Utilize a locking tongue and telescopic mechanism to achieve rapid and automatic attachment and detachment of the lifting rope sling. Through the telescopic extension of the locking tongue and the cooperation of the transition ring, achieve automatic separation and connection between the lifting point assembly and the lifting lug assembly.
It eliminates the risk of personnel slipping and falling during dismantling and hoisting, improves hoisting speed and safety during operation, and reduces the need for and cost of manual operation.
Smart Images
Figure CN121823375A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of hoisting equipment manufacturing, and particularly relates to a hoisting device. BACKGROUND
[0002] In the field of oil drilling construction, the power used by the drilling machine is generally provided by a network electric motor or a high-power diesel engine. Although the network electric motor has absolute advantages in terms of benefits and has been applied more and more widely, due to the limitation of network electric equipment and technology or other reasons, the drilling machine powered by the diesel engine must be used in many cases. When the diesel engine is used to provide power for the drilling machine, a large amount of diesel oil needs to be consumed. Generally, the diesel oil of the well site is placed in a diesel tank on the empty land about 10 meters in front of the base of the diesel engine, and the diesel engine is placed on the base of the machine room, which results in that the position of the diesel oil is 3-5 meters lower than that of the diesel engine. In order to ensure that the diesel oil in the diesel tank is smoothly supplied into the diesel engine, the diesel oil needs to be lifted to a position about two meters higher than the diesel engine. The existing countermeasure is to add a high tank with a volume of 2-3 cubic meters above the diesel tank, so that the diesel oil enters the diesel engine from the high tank, and the diesel oil can be smoothly and continuously supplied into the diesel engine.
[0003] The high tank is widely used on site due to its own advantages, but in the process of moving the drilling machine, the high tank needs to be lifted and placed on the base of the diesel tank, and then integrated with the diesel tank and moved to the new well site. When reaching the new well site, the high tank needs to be lifted by the crane, and finally the supporting rod is installed and fixed. In the process of lifting and lifting the existing high tank, the staff needs to climb to the top of the high tank to operate the unhooking, hanging, unhooking and lifting rope sleeve. Such high height has the risk of slipping of the personnel, and if a ladder or guardrail is installed on the top of the high tank to avoid such risk, the work load and manufacturing cost will be increased, and the installation and removal of the ladder or guardrail cannot guarantee safety, and there is still the risk of falling from a high place.
[0004] It can be seen that the problem to be solved at present is how to eliminate the risk of personnel slipping in the process of disassembling and lifting the tank body at low cost, improve the lifting speed and safety in the operation process. SUMMARY
[0005] To solve the above problems, the present application provides a hoisting device which can quickly and automatically unhook and hang the lifting rope sleeve, eliminate the risk of personnel slipping in the process of disassembling and lifting, improve the lifting speed and safety in the operation process.
[0006] The hoisting device provided by the present application comprises:
[0007] The lifting point assembly comprises a lifting point body with upper and lower through holes and a side through hole, a lock tongue arranged in the side through hole, and a telescopic mechanism. The lock tongue comprises a lock tongue head with an inclined lower surface.
[0008] The lifting lug assembly comprises a lifting lug body and a transition ring. The lifting lug body comprises a lifting lug carrying head, a main body, and an intermediate transition ring mounting portion. The transition ring has a flying disc shape and is sleeved on the transition ring mounting portion.
[0009] The lifting lug carrying head can press the lock tongue head into the side through hole, and the telescopic mechanism can make the lock tongue head retract into the upper and lower through holes when it is below the lifting lug carrying head to carry the lifting lug carrying head.
[0010] The transition ring can assist the lock tongue head to return above the lifting lug carrying head to separate the lifting point assembly from the lifting lug assembly.
[0011] Preferably, in the lifting device, the lock tongue further comprises a lock tongue rod and a blocking ring between the lock tongue rod and the lock tongue head. The telescopic mechanism comprises a spring sleeved on the outer peripheral portion of the lock tongue rod, a spring fixing cylinder fixed on the lifting point body and used for accommodating the spring. The diameter of the blocking ring is greater than the diameter of the spring. The telescopic region of the spring is between the spring fixing cylinder and the blocking ring. The spring is compressed when the lock tongue head is pressed into the side through hole, and the spring restores to its original state to push the lock tongue head back into the upper and lower through holes after the pressure is removed.
[0012] Preferably, in the lifting device, the outer end of the lock tongue rod is located outside the spring fixing cylinder, and a lock tongue fixing cap is fixedly connected by threads. The lock tongue fixing cap is used to limit the distance of the lock tongue entering the upper and lower through holes.
[0013] Preferably, in the lifting device, the lifting lug assembly further comprises a lifting lug connecting portion connected with the lifting lug main body. The lifting lug connecting portion is used to connect with a lifting lug mounting seat. The lifting lug connecting portion is a quadrangular prism with a first pin hole. The lifting lug mounting seat is a U-shaped seat with a second pin hole. The connection between the lifting lug body and the lifting lug mounting seat is realized by an axle pin passing through the first pin hole and the second pin hole at the same time. The lifting lug body and the lifting lug mounting seat are clearance fitted, and the lifting lug body can rotate around the lifting lug mounting seat.
[0014] Preferably, in the lifting device, the lower part of the lifting lug mounting seat is further fixed with a lifting lug fixing flange. The lifting lug fixing flange is provided with bolt holes for fixed connection with a lifting object.
[0015] Preferably, in the hoisting device, the two ends of the lug body are provided with spring lug plates, the upper surface of the lug fixing flange is provided with two lug spring seats corresponding to the positions of the spring lug plates, and the spring lug plates and the lug spring seats corresponding thereto are connected by lug springs to maintain the lug body in a vertical state.
[0016] Preferably, in the hoisting device, the top of the lug carrier head has a cone for guiding the lifting point assembly into the lug body.
[0017] Preferably, in the hoisting device, the lifting point assembly further comprises two lifting rings fixed on the lifting point body for connecting to the hoisting rope sleeve of the hoisting equipment, and the two lifting rings are symmetrically distributed on the lifting point assembly.
[0018] Preferably, in the hoisting device, the lifting point body is a square nut-like object, a hexagonal nut-like object or a circular nut-like object, with an outer diameter of 300-600 mm, a thickness of 150-300 mm, and two side through holes formed in the side surface, each of which is provided with the locking tongue and the telescopic mechanism.
[0019] Preferably, in the hoisting device, the elastic compression range of the spring is 10-20 mm.
[0020] As can be seen from the above description, the hoisting device provided by the application can realize the lifting of the hoisting object without the need for relevant personnel to operate the hoisting rope sleeve from a high place, because after the lifting point assembly is inserted into the lug assembly from top to bottom, the lug carrier head presses the locking tongue head into the side through hole until the whole locking tongue head reaches below the lug carrier head, and then the locking tongue head is extended into the upper and lower through holes below the lug carrier head and contacts the lug carrier head to make the lifting point assembly lift the lug assembly. After the hoisting is completed, the lifting point assembly continues to move downward until the locking tongue head reaches below the transition ring, and then the locking tongue head is pressed into the side through hole by the lower surface of the transition ring after the transition ring contacts the lug carrier head when the locking tongue head is moved upward to drive the transition ring, until the locking tongue head reaches above the lug carrier head and is extended into the upper and lower through holes, realizing the separation of the lifting point assembly and the lug assembly. Therefore, relevant personnel do not need to go to a high place to remove the lifting point from the lug, but only need to lower and raise the lifting point to automatically remove it from the lug, so that the lifting rope sleeve can be quickly and automatically hung and removed, the risk of slipping and falling of personnel during disassembly and hoisting is eliminated, and the hoisting speed and safety during operation are improved. BRIEF DESCRIPTION OF DRAWINGS
[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed in the embodiments or prior art description. Obviously, the drawings in the following description only constitute a part of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of the provided drawings.
[0022] Figure 1 An overall schematic view of an embodiment of the hoisting device provided by the present application;
[0023] Figure 2 A lifting point assembly schematic view of an embodiment of the hoisting device provided by the present application;
[0024] Figure 3 A lock tongue schematic view of an embodiment of the hoisting device provided by the present application;
[0025] Figure 4 A lifting lug assembly front view of an embodiment of the hoisting device provided by the present application;
[0026] Figure 5 A three-dimensional view of the lifting lug assembly of an embodiment of the hoisting device provided by the present application. DETAILED DESCRIPTION
[0027] The core of the present application is to provide a hoisting device capable of quickly and automatically picking up and hanging a hoisting rope sleeve, eliminating the risk of personnel slipping and falling during disassembly and hoisting, and improving the hoisting speed and safety during operation.
[0028] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments only constitute a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.
[0029] An embodiment of the hoisting device provided by the present application is shown in Figure 1 、 Figure 2 、 Figure 3 、 Figure 4 and Figure 5 , Figure 1 An overall schematic view of an embodiment of the hoisting device provided by the present application, Figure 2 A lifting point assembly schematic view of an embodiment of the hoisting device provided by the present application, Figure 3 A lock tongue schematic view of an embodiment of the hoisting device provided by the present application, Figure 4 A lifting lug assembly front view of an embodiment of the hoisting device provided by the present application, Figure 5A three-dimensional view of an embodiment of an ear assembly of a lifting device, which can include:
[0030] A lifting point assembly 2, which can include a lifting point body 21 having an up-and-down through hole 21a and a side through hole 21b, a lock tongue 22 disposed in the side through hole 21b, and a telescopic mechanism for controlling the telescoping of the lock tongue 22, the lock tongue 22 including a lock tongue head 22a with an inclined lower surface, which in a resting state is located in the up-and-down through hole 21a, that is, in the resting state, the lock tongue head 22a extends into the up-and-down through hole 21a from the side through hole 21b, that is, in the resting state, the lock tongue head 22a extends into the up-and-down through hole 21a from the side through hole 21b, the cross-sectional shape of the lock tongue head 22a can be a right trapezoid, the shape of the side through hole 21b matches the lock tongue 22, the part near the inside of the side through hole 21b can be a square hole matching the lock tongue head 22a, the two are clearance fit to ensure that the lock tongue head 22a can move in the horizontal direction in the side through hole 21b, and the part near the outside of the side through hole 21b can be a circular threaded hole to fix the telescopic mechanism;
[0031] An ear assembly 1, which can include an ear body 11 that can enter the up-and-down through hole 21a and a transition ring 12, the ear body 11 including an ear carrying head 11d, an ear main body 11b, and an intermediate transition ring mounting portion 11c, and the transition ring 12 is a flying disc shape and is sleeved on the transition ring mounting portion 11c;
[0032] The ear carrying head 11d can press the lock tongue head 22a into the side through hole 21b, and the telescopic mechanism can make the lock tongue head 22a retract into the up-and-down through hole 21a when it reaches below the ear carrying head 11d to carry the ear carrying head 11d;
[0033] The transition ring 12 can assist the lock tongue head 22a to return above the ear carrying head 11d to separate the lifting point assembly 2 from the ear assembly 1.
[0034] The lug body 11 can be turned from round steel, and can include lug bearing head 11d, transition ring mounting portion 11c, lug body portion 11b arranged in sequence, wherein the inclination angle of the lock tongue head 22a is matched with the lug bearing head 11d to ensure that the lock tongue head 22a can be retracted into the side hole after being pressed by the lug bearing head 11d, for example, the inclination angle can be an angle between 30° and 60°, which can be selected according to actual needs, and the carrying capacity of the lug bearing head 11d requires that it can lift the full weight of the elevated tank filled with diesel oil, the diameters of the lug body portion 11b and the lug bearing head 11d are preferably equal, one end of the lug body portion 11b can be a cylinder, the transition ring mounting portion 11c can be a section of round steel, the transition ring mounting portion 11c and the lug body portion 11b and the lug bearing head 11d at both ends thereof can be threadedly connected, after the transition ring 12 is sleeved into the transition ring mounting portion 11c, the transition ring mounting portion 11c can be tightened between the lug body portion 11b and the lug bearing head 11d by threads, the transition ring mounting portion 11c is in clearance fit with the transition ring 12, so that the transition ring 12 can move freely on the transition ring mounting portion 11c, and the outer diameter of the transition ring 12 is not less than the outer diameters of the lug body portion 11b and the lug bearing head 11d, so that the lock tongue head can enter the lower surface of the transition ring 12 during the lowering process of the lifting point assembly, the lug bearing head 11d is in clearance fit with the upper and lower through holes 21a to ensure that the lug bearing head 11d can move in the upper and lower through holes 21a, the lug bearing head 11d can be connected or separated from the lifting point assembly 2, specifically, when the lock tongue head is below the lug bearing head 11d, the lifting object can be lifted, and when the lock tongue head is above the lug bearing head 11d, the lifting point assembly 2 is separated from the lug assembly 1, at this time, the lifting is completed, the transition ring 12 is movably sleeved on the transition ring mounting portion 11c, the inner diameter of the transition ring 12 is greater than the diameter of the transition ring mounting portion 11c, so that it can move freely on the transition ring mounting portion 11c, and the inner diameter of the transition ring 12 is less than the diameter of the lug body portion 11b, so that the transition ring 12 is prevented from falling down under the action of gravity, in addition, the inner diameter of the transition ring 12 is also less than the diameter of the lug bearing head 11d, so that when the transition ring 12 is moved upward with the lifting point body, the lug bearing head 11d finally blocks the upward movement path of the transition ring 12, the middle part of the transition ring 12 has the maximum cross-sectional diameter and gradually tapers to both sides, which is a shape similar to a flying saucer, by using this shape, when the lifting point assembly moves downward, the lock tongue head moves downward with the transition ring 12 until the transition ring 12 is blocked by the lug body portion 11b and cannot move downward, at this time, the upper surface shape similar to a flying saucer ensures that the lock tongue head is compressed into the side hole, until the lock tongue head gradually extends into the upper and lower through holes after being adjacent to the cross section with the maximum middle diameter,The distance of the extension gradually increases until the lock tongue is fully extended into the upper and lower through holes, at which time the lock tongue is located below the transition ring 12, and then the lifting point assembly can be lifted upward, the transition ring 12 above the lock tongue is driven to move upward until the transition ring 12 is blocked by the lifting lug bearing head 11d and cannot continue to move upward, at which time, under the action of the shape of the lower surface of the transition ring 12, the lock tongue is gradually pressed back into the side through hole until the lock tongue contacts the largest diameter section of the transition ring 12, and the lock tongue is fully returned to the side through hole, at which time, in the instant of continuing to quickly lift the lifting point body, the lock tongue has not yet fully extended back into the upper and lower through holes, and it is already located above the lifting lug bearing head 11d, so that the lifting point assembly is separated from the lifting lug assembly;
[0035] Specifically, after the lifting point assembly 2 is sleeved into the lifting lug assembly 1 from top to bottom, the lifting lug bearing head 11d presses the lock tongue 22a into the side through hole 21b until the lock tongue 22a as a whole reaches below the lifting lug bearing head 11d, the lock tongue 22a is extended into the upper and lower through holes 21b and located below the lifting lug bearing head 11b, the lock tongue 22a and the lifting lug bearing head 11d are in contact to make the lifting point assembly 2 hoist the lifting lug assembly 1, at which time the lifting operation can be performed;
[0036] Moreover, after the lifting is completed, the lifting point assembly 2 continues to move downward until the lock tongue 22a reaches below the transition ring 12, and after the lock tongue 22a drives the transition ring 12 to contact the lifting lug bearing head 11d, the lock tongue 22a is pressed by the lower surface of the transition ring 12 into the side through hole 21b until the lock tongue 22a reaches above the lifting lug bearing head 11a and is extended into the upper and lower through holes 21a, realizing the separation of the lifting point assembly 2 and the lifting lug assembly 1.
[0037] As can be known from the above description, in the embodiment of the hoisting device provided by the application, after the hoisting point assembly is sleeved into the lifting lug assembly from top to bottom, the lug bearing head presses the locking tongue head into the side hole, until the locking tongue head as a whole reaches below the lug bearing head, the locking tongue head is extended into the upper and lower holes again and located below the lug bearing head, the locking tongue head and the lug bearing head are in contact to make the hoisting point assembly hoist the lifting lug assembly, thus the operation of loading the rope sleeve by the relevant personnel on the high place is not needed, and the hoisting object can be hoisted, and after the hoisting point assembly continues to move downward until the locking tongue head reaches below the transition ring, and then the locking tongue head is moved upward to drive the transition ring to contact the lug bearing head, the locking tongue head is pressed into the side hole by the lower surface of the transition ring, until the locking tongue head reaches above the lug bearing head and is extended into the upper and lower holes again, the hoisting point assembly and the lifting lug assembly are separated, thus the relevant personnel on the high place is not needed to take the hoisting point from the lifting lug, but the hoisting point is directly lowered and automatically taken out from the lifting lug by the operation of rising once, so it can be seen that the scheme can quickly and automatically take and hang the hoisting rope sleeve, eliminates the risk of slipping and falling of the personnel in the process of disassembly and hoisting, and improves the hoisting speed and safety in the operation process.
[0038] In one specific embodiment of the hoisting device, with further reference to Figure 3 The locking tongue 22 can also include a locking tongue rod 22c and a blocking ring 22b between the locking tongue rod 22c and the locking tongue head 22a, and the locking tongue 22 can be machined from round steel, and the maximum diameter thereof can be 30-50 mm. The diameter of the blocking ring 22b is greater than that of the locking tongue head 22a, and the diameter of the locking tongue head 22a is greater than that of the locking tongue rod 22c. The extension mechanism includes a spring 23 sleeved on the outer circumferential portion of the locking tongue rod 22c and a spring fixing cylinder 24 fixed on the hoisting point body 21 and used for accommodating the spring 23. The elastic compression range of the spring 23 can be preferably 10-20 mm, so that the locking tongue can be quickly moved and has enough space after being retracted. The spring fixing cylinder 24 can be machined from round steel, and the outer thread near one end thereof is used for fixing the hoisting point body 21, and the outer wall near the other end thereof can be a square head or a hexagonal head, which is used for installing or dismounting the spring fixing cylinder 24. The inner hole has two hole diameters, one of which is in clearance fit with the spring 23, and the other of which is in clearance fit with the locking tongue rod 22c. The diameter of the blocking ring 22b is greater than that of the spring 23, and the extension area of the spring 23 is between the spring fixing cylinder 24 and the blocking ring 22b. The blocking ring 22b can compress and block the spring 23. When the locking tongue head 22a is pressed into the side hole 21b, the spring 23 is compressed, and after the pressure is eliminated, the spring 23 returns to the original state to push the locking tongue head 22a back into the upper and lower holes 21a.
[0039] Further, the outer end of the aforementioned locking tongue rod 22c can be located outside the spring fixing cylinder 24, and a locking tongue fixing cap 25 is fixedly connected outside by threads, which is used to limit the distance of the locking tongue 22 entering the upper and lower through holes 21a, that is, the locking tongue fixing cap 25 can avoid the locking tongue 22 from entering the upper and lower through holes 21a and being out of the limitation of the spring due to the action of the inertia of motion, and causing failure. The diameter of the locking tongue fixing cap 25 itself is greater than the inner diameter of the spring fixing cylinder 24, so it can only be located outside the spring fixing cylinder 24, thereby ensuring effective limiting of the locking tongue 22. Of course, other limiting methods can also be used, which are not limited here. The outer wall shape of the locking tongue fixing cap 25 can be a square nut or a hexagonal nut, which can facilitate installation and disassembly. Of course, other types can also be selected according to actual needs, which are not limited here.
[0040] In the various embodiments of the hoisting device described above, the lifting lug assembly 1 can further include a lifting lug connecting portion 11c connected with the lifting lug body portion 11b, which is used to connect with the lifting lug mounting seat 3. The lifting lug mounting seat can be fixed with the hoisting object, for example, the lifting lug mounting seat is fixed on the upper surface of the diesel overhead tank, and the diesel overhead tank can be hoisted. Specifically, the lifting lug connecting portion 11a can be a quadrangular prism with a first pin hole 11f, and the lifting lug mounting seat 3 can be a U-shaped seat with a second pin hole 3a. The connection between the lifting lug body 11 and the lifting lug mounting seat 3 is achieved by using a shaft pin to pass through the first pin hole 11f and the second pin hole 3a at the same time. The lifting lug body 11 is clearance-fitted with the lifting lug mounting seat 3 and can rotate around the lifting lug mounting seat 3. This rotating connection is to ensure convenient hoisting. During hoisting, the angle between the lifting arm and the ground changes at any time, so the lifting lug body portion 11b and the lifting lug mounting seat 3 are connected in rotation, which can realize the rotation of the lifting lug assembly within the range of 0-180° during lifting and lowering.
[0041] In further embodiments, the lower part of the lifting lug mounting seat 3 is further fixed with a lifting lug fixing flange 4, which realizes the connection between the lifting lug assembly and the lifting lug fixing flange. The lifting lug mounting seat 3 can be preferably welded at the middle position of the lifting lug fixing flange 4, which can maintain the force balance during hoisting. Before hoisting starts, the lifting lug assembly can be connected to the lifting lug fixing flange on the ground, or this can be a normal setting. The lifting lug assembly can be installed on the lifting lug fixing flange at all times without being removed. When hoisting is needed, the lifting point assembly can be directly placed in the lifting lug assembly to realize quick and automatic hoisting. Relevant personnel do not need to connect the two every time, which greatly improves the efficiency. Moreover, the lifting lug fixing flange 4 can be provided with bolt holes 41 for fixed connection with the hoisting object. Figure 1When the hoisting object is the elevated tank 5, the top of the elevated tank 5 can be fixed with an elevated tank flange, and the main body of the above-mentioned lifting lug fixing flange can also be a circular steel plate with the same size, and the thickness can be 30mm to 50mm to meet the hoisting load requirement, and a plurality of elevated tank flange bolt holes can also be formed on the elevated tank flange, and the number of bolt holes can be preferably 4 to 12, and after the lifting lug fixing flange 4 is aligned with the bolt holes on the elevated tank flange, a plurality of bolts can be used to pass through the bolt holes at the same time and then fastened, so that the lifting lug assembly and the elevated tank are more firmly fixed, and the subsequent safe hoisting of the elevated tank can be realized. It can be seen that this flange connection can better ensure the safety during hoisting and prevent the elevated tank from falling. It should be noted that, continuing to refer to Figure 1 The elevated tank can be an oval or spherical tank body with a volume of 2 to 3 cubic meters, and a top hole is formed at the upper end, and a pin shaft seat connected with the support rod 6 can be welded at the lower end. The elevated tank 5 and the support rod 6 below it can be fixed by pin shaft connection, and the lower end of the support rod 6 and the support rod seat 7 can also be connected by pin shaft to achieve stable placement of the elevated tank. Moreover, the support rod seat 7 can be fixed at a suitable position on the diesel tank base. Further, the support rod 6 can be preferably a telescopic circular pipe with one end connected with the elevated tank 5 and the other end connected with the support rod seat 7. The two sections of the circular pipe can be fixed by a shaft pin, and the relative position of the two sections can be adjusted, so that the height of the elevated tank 5 can be adjusted more freely.
[0042] In a further embodiment, both ends of the lifting lug main body 11b can be provided with a tension spring ear plate 11e, and the upper surface of the lifting lug fixing flange 4 is provided with two lifting lug tension spring seats 42 corresponding to the positions of the tension spring ear plates 11e. The two lifting lug tension spring seats 42 are preferably symmetrically arranged to ensure uniform stress. The tension spring ear plate 11e and the corresponding lifting lug tension spring seat 42 are connected by a lifting lug tension spring 43 to maintain the lifting lug body 21 in a vertical state. In this way, the lifting lug assembly can always stand upright when not being lifted, which can better ensure that the lifting point body can smoothly enter the lifting lug assembly without the need for related personnel to operate, thereby further improving the convenience of hoisting. Moreover, the number of tension spring ear plates can be selected to be more, such as three or four or more, which is not limited here.
[0043] In a preferred embodiment of the above-mentioned hoisting device, referring to Figure 5 The top of the lifting lug bearing head 11d has a conical body 11d1 for guiding the lifting point assembly 2 into the lifting lug body 1, which can more quickly and accurately guide the lifting point assembly 2 into the lifting lug body 1. Of course, other shapes such as cylindrical cone can also be used, which is not limited here.
[0044] In another preferred embodiment of the hoisting device, the hoisting point assembly 2 can further comprise two lifting rings 26 fixed on the hoisting point body 21 for connecting to the hoisting ropes of the hoisting equipment, and the two lifting rings 26 are symmetrically distributed on the hoisting point assembly 2. Specifically, the lifting ring can be welded by a screw rod and a ring, and the two lifting rings can be installed by using the lifting ring mounting hole 21c. The screw rod of the lifting ring can be inserted into the lifting ring mounting hole to achieve installation, and the ring at the other end can be connected with the hoisting ropes of the crane. In this way, the lifting ring 26 can be installed in the lifting ring mounting hole 21 to be connected with the hoisting point body in ordinary times, and can be easily taken down when it needs to be replaced. Of course, other connection methods can also be selected according to actual needs, such as being directly welded on the hoisting point body, which is not limited here. In this case, when hoisting is performed, the lifting ring can be connected with the hoisting ropes in advance, and then the hoisting equipment is hoisted to hoist the hoisting point assembly 2 to the air. In this way, it is no longer necessary for relevant personnel to install the hoisting point assembly at a high place, and the safety hazard of falling from a high place is eliminated, and the hoisting efficiency is greatly improved.
[0045] In another preferred embodiment of the hoisting device, the hoisting point body 21 can be preferably a square nut-shaped object, a hexagonal nut-shaped object or a circular nut-shaped object, with an outer diameter of 300mm to 600mm and a thickness of 150mm to 300mm, and two side through holes 21b are formed on the side surface of the hoisting point body 21. A locking tongue 22 and a telescopic mechanism are arranged in each side through hole 21b. In this way, two sets of structures are used to improve the safety of hoisting and make the stress more uniform, and a heavier tank can be hoisted.
[0046] The assembly process of the hoisting device can be as follows:
[0047] 1. Assemble the hoisting point assembly 2: install the locking tongue 22 into the side through hole 21b of the hoisting point body 21, then assemble the spring 23 and the spring fixing cylinder 24, tighten the threads of the spring fixing cylinder 24 and the hoisting point body 21, tighten the locking tongue fixing cap 25, connect the lifting ring 26 and the hoisting point body 21, and connect the lifting ring 26 and the hoisting ropes of the hoisting equipment.
[0048] 2. Install the lifting lug assembly 1: assemble the transition ring 12 to the transition ring mounting portion 11c of the lifting lug assembly 1, connect the lifting lug body 11 and the lifting lug mounting seat 3, and connect the lifting lug spring 43 with the lifting lug spring seat 42 and the spring lug plate 11e.
[0049] The hoisting process using the hoisting device can be as follows:
[0050] 1. Dismounting the elevated tank 5: the lifting point assembly 2 is aligned with the lifting lug assembly 1, the lifting rope of the crane is lowered, the lug bearing head 11d of the lifting lug assembly 1 slowly enters the up-and-down hole 21a of the lifting point assembly 2, and the crane is further lowered, the front inclined surface of the locking tongue 22 slowly retracts the compression spring 23 along the upper inclined surface of the lug bearing head 11d, until the locking tongue 22 passes through the lug bearing head 11d, under the action of the spring 23, the locking tongue head 22a is fully extended, at this time, the lug bearing head 11d is in the lower plane, the lifting rope of the crane is lifted, under the action of the locking tongue head 22a and the lug bearing head 11d, the elevated tank 4 can be lifted, at this time, the connecting pin in the middle of the support rod 6 is pulled out, the lifting rope of the crane is lowered, and the elevated tank 4 is slowly placed on the fixed position on the diesel tank base. Since the lug body 11 is connected with the lug mounting seat 13 by a pin shaft, the lifting lug assembly 1 is always upright during the lowering process. After the elevated tank 4 is in place, the lifting point assembly 2 is further lowered, at this time, the locking tongue head 22a is blocked by the transition ring 12, the compression spring 23 is retracted, passes through the transition ring 12, and enters the lug main body 11b, the lifting point assembly 2 is lifted again, the locking tongue head 21a enters the lower end surface of the transition ring 12 under the action of the spring 23, continues to be lifted, and when the upper end surface of the transition ring 12 contacts the lug bearing head 11d, it can no longer rise, the locking tongue head 22a moves upward along the lower end inclined surface of the transition ring 12 under the action of the upward pulling force, and when passing through the maximum diameter of the transition ring 12, the locking tongue head 22a quickly moves to the upper end surface of the lug bearing head 11d under the action of the spring 23, continues to be lifted, and the lifting point assembly 2 is separated from the lifting lug assembly 1, achieving the purpose of automatically separating from the lifting device.
[0051] 2. Installing the elevated tank 4: the lifting point assembly 2 is lowered, the lug bearing head 11d of the lifting lug assembly 1 enters the up-and-down hole 21a of the lifting point assembly 2, the lifting point assembly 2 is further lowered, the locking tongue head 22a of the locking tongue 22 enters between the lug bearing head 11d and the transition ring 12, the lowering is stopped, the lifting point assembly 2 is lifted, the locking tongue head 22a cannot move in contact with the lower end surface of the lug bearing head 11d, the lifting point assembly 2 is further lifted, the lifting lug assembly 1, the elevated tank 5, and the support rod 6 are lifted into place, the pin in the middle of the support rod 6 is inserted, the lifting point assembly 2 is lowered again, the locking tongue head 22a of the locking tongue 22 pushes the transition ring 12 to move downward to the lug main body 11b, the transition ring 12 does not move, the lifting point assembly 2 is further lowered, the locking tongue head 22a passes through the transition ring 12, the lowering is stopped, and then the lifting point assembly 2 is lifted, the transition ring 12 moves upward to the lower end surface of the lug bearing head 11d under the action of the locking tongue head 22a, the locking tongue 22 of the lifting point assembly 2 continues to move upward along the lower end surface of the transition ring 12 under the blockage of the lug bearing head 11d to the maximum diameter, the locking tongue head 22a quickly moves to the upper conical surface of the lug bearing head 11d, continues to be lifted, and the lifting point assembly 2 is separated from the lifting lug assembly 1, achieving the purpose of automatically separating from the lifting device.
[0052] In summary, the hoisting device provided by the application has the following advantages. Through the design of the lug body 11 of the lug assembly 1, the pin shaft connection structure of the lug mounting seat 3, and the application of the lug tension spring 43, the lug assembly 1 can rotate by 0-90° during lifting and lowering, and the lug assembly 1 can always stand straight when not lifting, thereby ensuring that the lifting point assembly 2 can smoothly fit into the lug assembly 1. Through the structural design of the lug body 11 of the lug assembly 1 and the cooperative design of the transition ring 12, the locking tongue 22a in the lifting point assembly 2 can smoothly pass through the lug bearing head 11d and the transition ring 12, thereby realizing automatic hanging and lifting and automatic disengagement of the lifting point assembly 2. Through the structural design of the side through hole 21b of the lifting point body 21 of the lifting point assembly 2, the structure of the locking tongue 22, and the combined design of the spring 23, the spring fixing cylinder 24, and the locking tongue fixing cap 25, automatic hanging and disengagement of the lifting point assembly 2 and the lug assembly 1 are realized, which not only improves the hoisting speed but also eliminates the step of manually climbing onto the elevated tank to disengage and hang the hoisting rope sleeve, thereby greatly eliminating the safety risks such as slipping and falling injuries caused by manual disengagement and hanging of the hoisting rope sleeve.
[0053] The above description of disclosed embodiments enables one of ordinary skill in the art to make or use the application. Various modifications to these embodiments will be readily apparent to those of ordinary skill in the art, and the generic principles defined herein can be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. A hoisting device, characterized in that, include: The lifting point assembly (2) includes a lifting point body (21) having upper and lower through holes (21a) and a side through hole (21b), a locking tongue (22) disposed in the side through hole (21b) and a telescopic mechanism, wherein the locking tongue (22) includes a locking tongue (22a) with an inclined lower surface. The lug assembly (1) includes a lug body (11) that can enter the upper and lower through holes (21a) and a transition ring (12). The lug body (11) includes a lug bearing head (11d), a lug main body (11b) and a transition ring mounting part (11c) in the middle. The transition ring (12) is in the shape of a flying saucer and is fitted on the transition ring mounting part (11c). The lug support head (11d) can press the locking tongue (22a) into the side through hole (21b), and the telescopic mechanism can extend the locking tongue (22a) back into the upper and lower through holes (21a) to support the lug support head (11d) when it reaches below the lug support head (11d). The transition ring (12) can assist the locking tongue (22a) to return to the lug bearing head (11d) to separate the lifting point assembly (2) from the lug assembly (1).
2. The hoisting device according to claim 1, characterized in that, The latch (22) also includes a latch rod (22c) and a retaining ring (22b) located between the latch rod (22c) and the latch (22a). The telescopic mechanism includes a spring (23) sleeved on the outer periphery of the latch rod (22c) and a spring fixing cylinder (24) fixed on the lifting point body (21) and used to accommodate the spring (23). The diameter of the retaining ring (22b) is larger than the diameter of the spring (23). The telescopic area of the spring (23) is located between the spring fixing cylinder (24) and the retaining ring (22b). When the latch (22a) is pressed into the side through hole (21b), the spring (23) is compressed. When the pressure is released, the spring (23) returns to its original state to push the latch (22a) back into the upper and lower through holes (21a).
3. The hoisting device according to claim 2, characterized in that, The outer end of the latch rod (22c) is located outside the spring fixing cylinder (24) and is fixedly connected to the latch fixing cap (25) by thread. The latch fixing cap (25) is used to limit the distance of the latch (22) entering the upper and lower through holes (21a).
4. The hoisting device according to any one of claims 1-3, characterized in that, The lug assembly (1) further includes a lug connecting part (11c) connected to the lug body (11b). The lug connecting part (11c) is used to connect with the lug mounting base (3). The lug connecting part (11a) is a quadrangular prism with a first pin hole (11f). The lug mounting base (3) is a U-shaped seat with a second pin hole (3a). The connection between the lug body (11) and the lug mounting base (3) is achieved by using a shaft pin that passes through both the first pin hole (11f) and the second pin hole (3a). The lug body (11) and the lug mounting base (3) are clearance-fitted, and the lug body (11) can rotate around the lug mounting base (3).
5. The hoisting device according to claim 4, characterized in that, The lower part of the lifting lug mounting base (3) is also fixed with a lifting lug fixing flange (4), and the lifting lug fixing flange (4) is provided with bolt holes (41) for fixed connection with the lifting object.
6. The hoisting device according to claim 5, characterized in that, Both ends of the main body (11b) of the lifting lug are provided with tension spring lug plates (11e). The upper surface of the lifting lug fixing flange (4) is provided with two lifting lug tension spring seats (42) corresponding to the positions of the tension spring lug plates (11e). The tension spring lug plates (11e) and their corresponding lifting lug tension spring seats (42) are connected by lifting lug tension springs (43) to maintain the lifting lug body (21) in a vertical state.
7. The hoisting device according to claim 1, characterized in that, The top of the lug bearing head (11d) has a cone (11d1) for guiding the lifting point assembly (2) into the lug body (1).
8. The hoisting device according to claim 1, characterized in that, The lifting point assembly (2) further includes two lifting rings (26) fixed on the lifting point body (21) for connecting to the lifting rope loop of the lifting equipment, and the two lifting rings (26) are symmetrically distributed on the lifting point assembly (2).
9. The hoisting device according to claim 1, characterized in that, The lifting point body (21) is a square nut-shaped object, a hexagonal nut-shaped object, or a round nut-shaped object, with an outer diameter of 300mm to 600mm and a thickness of 150mm to 300mm. It has two side through holes (21b) on its side, and each side through hole (21) is provided with the locking tongue (22) and the telescopic mechanism.
10. The hoisting device according to claim 2, characterized in that, The elastic compression range of the spring (23) is 10 mm to 20 mm.