Hoisting auxiliary mechanism for heavy pipeline

Abstract

The invention discloses a lifting auxiliary mechanism for a heavy pipeline. The lifting auxiliary mechanism comprises a connecting plate, a lifting ring, a sliding sleeve, a hand wheel, a spiral wheel and a lifting hook assembly. The connecting plate is a strip-shaped plate, and the two sliding sleeves are arranged at the two ends of the connecting plate in a sleeving mode correspondingly. The two hanging rings are fixedly connected to the tops of the corresponding sliding sleeves. Racks arranged in the length direction are arranged on the bottom surface of the connecting plate; a pin lug I, a spiral wheel hole and a lifting hook assembly are arranged at the bottom of each sliding sleeve, and the lifting hook assemblies are used for connecting and lifting heavy pipeline lifting belts; the pin lug I is positioned at the outer end of the sliding sleeve; the spiral wheel hole is adjacent to the pin lug I; a wheel shaft mounting hole is formed in the pin lug I; the spiral wheel hole is a square hole; the hand wheel comprises a rocking rod and a wheel shaft; the rocking rod is eccentrically arranged at the outer end of the wheel shaft; the wheel shaft penetrates through the wheel shaft mounting hole and then is coaxially and fixedly connected with the spiral wheel; the top of the spiral wheel penetrates through the spiral wheel hole of the sliding sleeve to be meshed with the rack of the connecting plate, the sliding sleeve can slide in the length direction of the rack by shaking the shaking rod, and the installation efficiency of the heavy pipeline is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of pipeline hoisting, and in particular relates to a hoisting auxiliary mechanism for heavy pipelines. Background Art

[0002] When installing heavy pipes, a crane is usually used to tie the two ends of the pipe with slings, and then lift it to the installation location for installation. Factors such as the position and length of the slings will directly affect the posture of the pipe being hoisted. After being lifted, the pipe often has problems such as incorrect posture, misalignment of the axis with the axis of the installation location, and inability to align with the installation location. It is necessary to adjust the pitch posture of the pipe being hoisted. When installing pipes with flanges, the flange holes of the pipe being hoisted may not be aligned with the flange holes at the installation location, and it is necessary to adjust the flipping posture of the pipe being hoisted.

[0003] There are two main ways to solve this problem. One is to use two cranes to lift the two ends of the pipeline respectively to achieve the pitch adjustment of the pipeline posture; the other is to put the lifted pipeline back to the ground and change the binding position of the sling to achieve the pitch adjustment of the pipeline posture when lifting with a single crane. The existing lifting method cannot achieve the adaptive pitch and roll adjustment of the heavy pipeline according to the installation position after a single crane lifts the heavy pipeline to the installation position. The installation efficiency is low, and the installation cost and safety risks are high. Summary of the invention

[0004] In view of this, the present invention provides a lifting auxiliary mechanism for heavy pipes, which can achieve posture adjustment of heavy pipes by using a crane, thereby improving the installation efficiency of heavy pipes and reducing safety risks.

[0005] The present invention is achieved through the following technical solutions:

[0006] A lifting auxiliary mechanism for heavy pipes, comprising: a connecting plate, a lifting ring, a sliding sleeve, a hand wheel, a spiral wheel and a hook assembly;

[0007] The connecting plate is a strip plate, and two sliding sleeves are respectively mounted on the two ends of the connecting plate and arranged opposite to each other; two lifting rings are fixedly connected to the top of the sliding sleeves in a one-to-one correspondence; the bottom surface of the connecting plate is provided with racks arranged along the length direction;

[0008] The bottom of each sliding sleeve is provided with a pin ear I, a spiral wheel hole and a hook assembly, and the hook assembly is used to connect the lifting belt for lifting heavy pipes;

[0009] The pin ear I is located at the outer end of the sliding sleeve, and the spiral wheel hole is arranged adjacent to the pin ear I; the pin ear I is provided with a wheel axle mounting hole; the spiral wheel hole is a square hole;

[0010] The handwheel includes a rocking rod and a wheel axle. The rocking rod is eccentrically arranged at the outer end of the wheel axle. The wheel axle passes through the wheel axle mounting hole and is coaxially fixedly connected with the spiral wheel. The top of the spiral wheel passes through the spiral wheel hole of the sliding sleeve and engages with the rack of the connecting plate. By shaking the rocking rod, the sliding sleeve can slide along the length direction of the rack.

[0011] Further, the hook assembly includes a balancing hook and a flip shaft;

[0012] Two parallel pin ears are arranged at the bottom of the sliding sleeve, and the two pin ears are arranged in the inner and outer directions, and the pin ear close to the inner end of the sliding sleeve is pin ear II, and the pin ear far from the inner end of the sliding sleeve is pin ear III; the pin ear II is provided with a turning shaft mounting hole I, and the pin ear III is provided with a turning shaft mounting hole II;

[0013] The balancing hook comprises hooks located at both ends, and a turning shaft hole is provided between the two hooks;

[0014] The flip shaft mounting hole I, the flip shaft hole and the flip shaft mounting hole II are coaxially opposite to each other, and the flip shaft passes through the flip shaft mounting hole II, the flip shaft hole and the flip shaft mounting hole I in sequence. The flip shaft and the balance hook can rotate synchronously; by rotating the flip shaft, the balance hook is deflected to adjust the flipping posture of the heavy pipeline.

[0015] Furthermore, a radial turning rod is arranged at the inner end of each turning shaft.

[0016] Furthermore, two flip rods are correspondingly arranged for each flip axis, and the two flip rods are arranged radially opposite to each other, one flip rod is located on the same side as one hook of the corresponding balancing hook, and the other flip rod is located on the same side as the other hook of the corresponding balancing hook.

[0017] Furthermore, a key II is provided on the flip shaft, a key slot II is provided on the side wall of the flip shaft mounting hole I of the pin ear II, and a key slot III is provided on the side wall of the flip shaft hole of the balancing hook; the key II of the flip shaft axially passes through the key slot II and cooperates with the key slot III, thereby realizing the synchronous flipping of the balancing hook and the flip shaft;

[0018] A coaxial annular groove III is provided at the outer end of the flip shaft, and the annular groove III is located on the outside of the pin ear III; on the flip shaft, an annular groove IV is provided between the key II and the inner end of the flip shaft; the annular groove IV is located on the inner side of the pin ear II; the annular groove III is used to set the elastic retaining ring III, and the annular groove IV is used to set the elastic retaining ring IV.

[0019] Furthermore, annular grooves are provided at both ends of the wheel axle, namely annular groove I and annular groove II, and annular groove I is located on the outside of pin ear I, and annular groove II is located on the outside of the spiral wheel; an elastic retaining ring I is coaxially provided at annular groove I, and an elastic retaining ring II is coaxially provided at annular groove II.

[0020] Furthermore, the outer circumferential surface of the spiral wheel is a spiral surface, a wheel axle hole is arranged at the central axis of the spiral wheel, a keyway I is arranged on the side wall of the wheel axle hole, a key I is arranged on the wheel axle of the handwheel, and the key I cooperates with the keyway I.

[0021] Beneficial effects:

[0022] (1) The present invention provides a lifting auxiliary mechanism for heavy pipes. By setting a connecting plate, a sliding sleeve, a hand wheel and a spiral wheel, the pitch posture of the heavy pipe can be manually adjusted when the heavy pipe is installed in position, thereby improving the installation efficiency of the heavy pipe and reducing safety risks.

[0023] (2) The present invention provides an auxiliary lifting mechanism for heavy-duty pipelines, which can adjust the flipping posture of the heavy-duty pipeline by setting a balancing hook and a flip axis, making the alignment of the heavy-duty pipeline convenient, improving the installation efficiency of the heavy-duty pipeline and reducing safety risks.

[0024] (3) The inner end of each flip shaft of the present invention is provided with a radial flip rod to facilitate manual flipping of the flip shaft.

[0025] (4) In the present invention, two flip rods are correspondingly arranged for each flip axis, and the two flip rods are arranged radially opposite to each other. The flip posture adjustment of the heavy pipeline can be achieved by simply applying pressure to the flip rod on the corresponding side, which saves effort and further facilitates manual flipping of the flip axis. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 Axonometric measurement of the lifting aid for heavy pipes Figure I ;

[0027] Figure 2 Axonometric measurement of the lifting aid for heavy pipes Figure II ;

[0028] Figure 3 is a cross-sectional view of a lifting aid mechanism for heavy pipes;

[0029] Figure 4 It is an exploded view of a lifting aid for heavy pipes;

[0030] 1-connecting plate, 101-rack, 2-handwheel, 201-shaking rod, 202-annular groove Ⅰ, 203-key Ⅰ, 204-annular groove Ⅱ, 205-axle; 3-elastic retaining ring Ⅰ, 4-elastic retaining ring Ⅱ, 5-spiral wheel, 501-keyway Ⅰ, 502-axle hole, 503-spiral surface, 6-sleeve, 601-axle mounting hole, 602-guide hole, 603-spiral wheel hole, 604-keyway Ⅱ, 605-flip shaft mounting hole Ⅰ, 606-flip shaft mounting hole Ⅱ, 7-balance hook, 701-hook Ⅰ, 702-flip shaft hole, 703-keyway Ⅲ, 704-hook Ⅱ, 8-flip shaft, 801-annular groove Ⅲ, 802-annular groove Ⅳ, 803-flip rod, 805-key Ⅱ, 9-elastic retaining ring Ⅲ, 10-elastic retaining ring Ⅳ, 11-lifting ring, 1101-lifting hole, 1102-threaded rod. DETAILED DESCRIPTION

[0031] The present invention is described in detail below with reference to the accompanying drawings and embodiments.

[0032] Embodiment 1:

[0033] This embodiment provides a lifting auxiliary mechanism for heavy pipes, see the attached Figure 1-4 , including a connecting plate 1, a lifting ring 11, a sliding sleeve 6, a hand wheel 2, a spiral wheel 5 and a hook assembly;

[0034] The connecting plate 1 is a strip plate, and two sliding sleeves 6 are respectively mounted on the two ends of the connecting plate 1 and arranged opposite to each other; two lifting rings 11 are fixedly connected to the top of the sliding sleeves 6 in a one-to-one correspondence; the bottom surface of the connecting plate 1 is provided with racks 101 arranged along the length direction;

[0035] The bottom of each sliding sleeve 6 is provided with a pin ear Ⅰ, a spiral wheel hole 603 and a hook assembly, and the hook assembly is used to connect a lifting belt for lifting heavy pipes;

[0036] The direction extending toward the two ends of the connecting plate 1 is defined as the outward direction, and the opposite direction toward the center of the connecting plate 1 is defined as the inward direction;

[0037] The pin ear Ⅰ is located at the outer end of the sliding sleeve 6, and the spiral wheel hole 603 is arranged adjacent to the pin ear Ⅰ; the pin ear Ⅰ is provided with a wheel shaft mounting hole 601; the spiral wheel hole 603 is a square hole;

[0038] The handwheel 2 includes a rocking rod 201 and an axle 205, wherein the rocking rod 201 is eccentrically arranged at the outer end of the axle 205; the axle 205 passes through the axle mounting hole 601 and is coaxially fixedly connected with the spiral wheel 5; the top of the spiral wheel 5 passes through the spiral wheel hole 603 of the sleeve 6 and engages with the rack 101 of the connecting plate 1, and by shaking the rocking rod 201, the sleeve 6 can slide along the length direction of the rack 101.

[0039] The present embodiment provides an auxiliary lifting mechanism for heavy pipes, wherein the upper portion of a lifting belt for lifting the heavy pipe is connected to a hook assembly on a sleeve 6, and the lower portion of the lifting belt is fixed to one end of the heavy pipe. The sleeve 6 can slide along the length direction of the rack 101 by shaking the shaking rod 201, so that when the heavy pipe is installed in position, the pitch posture of the heavy pipe can be manually adjusted, thereby improving the installation efficiency of the heavy pipe and reducing safety risks.

[0040] In one embodiment, the hook assembly is two hooks fixedly arranged on the sliding sleeve 6, and the two hooks are arranged along the short side direction of the connecting plate 1;

[0041] In one embodiment, each sliding sleeve 6 is provided with a guide hole 602, and the sliding sleeve 6 is sleeved on the connecting plate 1 through the guide hole 602;

[0042] In one embodiment, both ends of the wheel shaft 205 are provided with annular grooves, namely annular groove I 202 and annular groove II 204, and the annular groove I 202 is located on the outside of the pin ear I, and the annular groove II 204 is located on the outside of the spiral wheel 5; an elastic retaining ring I 3 is coaxially arranged at the annular groove I 202, and an elastic retaining ring II 4 is coaxially arranged at the annular groove II 204, and the elastic retaining ring I 3 and the elastic retaining ring II 4 limit the axial movement of the wheel shaft 205;

[0043] In one embodiment, the outer circumferential surface of the spiral wheel 5 is a spiral surface 503, a wheel shaft hole 502 is provided at the central axis of the spiral wheel 5, a key groove I 501 is provided on the side wall of the wheel shaft hole 502, a key I 203 is provided on the wheel shaft 205 of the hand wheel 2, and the key I 203 cooperates with the key groove I 501, so as to realize the synchronous rotation of the spiral wheel 5 and the wheel shaft 205;

[0044] In one embodiment, a lifting hole 1101 is provided at the top of the lifting ring 11 for connecting with the lifting rope of the crane; the bottom of the lifting ring 11 can be welded to the top of the corresponding sliding sleeve 6, and a threaded rod 1102 can be provided at the bottom of the lifting ring 11, and a threaded hole is provided at the top of the corresponding sliding sleeve 6, and the lifting ring 11 is threadedly connected with the corresponding sliding sleeve 6.

[0045] Working principle:

[0046] When hoisting a heavy pipe, both ends of the heavy pipe are connected to the hook assembly of the sliding sleeve 6 through corresponding lifting belts. By manually shaking the shaking rod 201 of the hand wheel 2, the wheel shaft 205 is rotated, the spiral wheel 5 rotates synchronously with the wheel shaft 205, and the spiral surface 503 of the spiral wheel 5 is engaged with the rack 101 of the connecting plate 1, so that the sliding sleeve 6 can slide on the connecting plate 1. Through the sliding of the sliding sleeve 6, the height of the lifting belt in the vertical direction can be changed, that is, the distance between the end of the heavy pipe and the hook assembly can be changed, and then the pitch state of the heavy pipe can be changed, so that the pitch posture adjustment of the heavy pipe can be achieved using only one crane, thereby improving the installation efficiency of the heavy pipe and reducing safety risks.

[0047] Embodiment 2:

[0048] This embodiment is based on the embodiment 1, and is different from the embodiment 1 in that the hook assembly can be used to adjust the flipping posture of the heavy pipe, and the hook assembly includes a balancing hook 7 and a flip shaft 8;

[0049] See attached Figure 1-4 The bottom of the sliding sleeve 6 is provided with two parallel pin ears, and the two pin ears are arranged in the inner and outer directions, and the pin ear close to the inner end of the sliding sleeve 6 is the pin ear II, and the pin ear far from the inner end of the sliding sleeve 6 is the pin ear III; the pin ear II is provided with a flip shaft mounting hole I605, and the pin ear III is provided with a flip shaft mounting hole II606;

[0050] The balancing hook 7 includes hooks located at both ends, and a turning shaft hole 702 is provided between the two hooks; the two hooks are hook I 701 and hook II 704;

[0051] The flip shaft mounting hole I605, the flip shaft hole 702 and the flip shaft mounting hole II606 are coaxially opposed to each other, and the flip shaft 8 passes through the flip shaft mounting hole II606, the flip shaft hole 702 and the flip shaft mounting hole I605 in sequence. The flip shaft 8 and the balance hook 7 can rotate synchronously; by rotating the flip shaft 8, the deflection of the balance hook 7 is achieved, and the flipping posture of the heavy pipeline is adjusted.

[0052] The hook assembly provided in this embodiment has one end of each sling used for lifting a heavy pipe connected to hook I 701 of the balancing hook 7, and the other end is connected to hook II 704 on the balancing hook 7 after being wrapped around the heavy pipe; the deflection of the balancing hook 7 is achieved by rotating the flip shaft 8, and the flipping posture of the heavy pipe can be adjusted, which makes the alignment of the heavy pipe convenient, improves the installation efficiency of the heavy pipe, and reduces safety risks.

[0053] In one embodiment, a radial flip rod 803 is provided at the inner end of each flip shaft 8, so as to facilitate manual flipping of the flip shaft 8. Furthermore, two flip rods 803 are provided corresponding to each flip shaft 8, and the two flip rods 803 are arranged radially opposite to each other, one flip rod 803 is located on the same side as the hook I 701 of the corresponding balance hook 7, and the other flip rod 803 is located on the same side as the hook II 704 of the corresponding balance hook 7. The flipping posture adjustment of the heavy pipe can be achieved by only applying pressure to the flip rod 803 on the corresponding side, which saves effort and further facilitates manual flipping of the flip shaft 8.

[0054] In one embodiment, a key II 805 is provided on the flip shaft 8, a key groove II 604 is provided on the side wall of the flip shaft mounting hole I 605 of the pin ear II, and a key groove III 703 is provided on the side wall of the flip shaft hole 702 of the balancing hook 7; the key II 805 of the flip shaft 8 axially passes through the key groove II 604 and then cooperates with the key groove III 703, thereby realizing the synchronous flipping of the balancing hook 7 and the flip shaft 8;

[0055] A coaxial annular groove III801 is provided at the outer end of the flip shaft 8, and the annular groove III801 is located on the outside of the pin ear III; on the flip shaft 8, an annular groove IV802 is provided between the key II 805 and the inner end of the flip shaft 8 (if there is a flip rod 803, the annular groove IV802 is axially arranged between the key II 805 and the flip rod 803), and the annular groove IV802 is located on the inside of the pin ear II; the annular groove III801 is used to set the elastic retaining ring III9, and the annular groove IV802 is used to set the elastic retaining ring IV10, thereby realizing axial limitation of the flip shaft 8.

[0056] In summary, the above are only preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A lifting auxiliary mechanism for heavy pipes, characterized in that: include: Connecting plate, lifting ring, sliding sleeve, hand wheel, spiral wheel and hook assembly; The connecting plate is a strip plate, and two sliding sleeves are respectively mounted on the two ends of the connecting plate and arranged opposite to each other; two lifting rings are fixedly connected to the top of the sliding sleeves in a one-to-one correspondence; the bottom surface of the connecting plate is provided with racks arranged along the length direction; The bottom of each sliding sleeve is provided with a pin ear I, a spiral wheel hole and a hook assembly, and the hook assembly is used to connect the lifting belt for lifting heavy pipes; The pin ear I is located at the outer end of the sliding sleeve, and the spiral wheel hole is arranged adjacent to the pin ear I; the pin ear I is provided with a wheel axle mounting hole; the spiral wheel hole is a square hole; The handwheel includes a rocking rod and a wheel axle. The rocking rod is eccentrically arranged at the outer end of the wheel axle. The wheel axle passes through the wheel axle mounting hole and is coaxially fixedly connected with the spiral wheel. The top of the spiral wheel passes through the spiral wheel hole of the sliding sleeve and engages with the rack of the connecting plate. By shaking the rocking rod, the sliding sleeve can slide along the length direction of the rack.

2. A lifting auxiliary mechanism for heavy pipes as claimed in claim 1, characterized in that: The hook assembly includes a balancing hook and a tilting shaft; Two parallel pin ears are arranged at the bottom of the sliding sleeve, and the two pin ears are arranged in the inner and outer directions, and the pin ear close to the inner end of the sliding sleeve is pin ear II, and the pin ear far from the inner end of the sliding sleeve is pin ear III; the pin ear II is provided with a turning shaft mounting hole I, and the pin ear III is provided with a turning shaft mounting hole II; The balancing hook comprises hooks located at both ends, and a turning shaft hole is provided between the two hooks; The flip shaft mounting hole I, the flip shaft hole and the flip shaft mounting hole II are coaxially opposite to each other, and the flip shaft passes through the flip shaft mounting hole II, the flip shaft hole and the flip shaft mounting hole I in sequence. The flip shaft and the balance hook can rotate synchronously; by rotating the flip shaft, the balance hook is deflected to adjust the flipping posture of the heavy pipeline.

3. A lifting auxiliary mechanism for heavy pipes as claimed in claim 2, characterized in that: The inner end of each turning shaft is provided with a radial turning rod.

4. A lifting auxiliary mechanism for heavy pipes as claimed in claim 3, characterized in that: Two flip rods are correspondingly arranged for each flip axis, and the two flip rods are arranged radially opposite to each other. One flip rod is located on the same side as one hook of the corresponding balancing hook, and the other flip rod is located on the same side as the other hook of the corresponding balancing hook.

5. A lifting auxiliary mechanism for heavy pipes as claimed in claim 2, characterized in that: A key II is arranged on the flip shaft, a key slot II is arranged on the side wall of the flip shaft mounting hole I of the pin ear II, and a key slot III is arranged on the side wall of the flip shaft hole of the balancing hook; the key II of the flip shaft axially passes through the key slot II and cooperates with the key slot III, thereby realizing synchronous flipping of the balancing hook and the flip shaft; A coaxial annular groove III is provided at the outer end of the flip shaft, and the annular groove III is located on the outside of the pin ear III; on the flip shaft, an annular groove IV is provided between the key II and the inner end of the flip shaft; the annular groove IV is located on the inner side of the pin ear II; the annular groove III is used to set the elastic retaining ring III, and the annular groove IV is used to set the elastic retaining ring IV.

6. A heavy-duty pipeline hoisting auxiliary mechanism as claimed in any one of claims 1 to 5, characterized in that: Annular grooves are arranged at both ends of the wheel shaft, namely annular groove I and annular groove II, and annular groove I is located on the outside of pin ear I, and annular groove II is located on the outside of the spiral wheel; an elastic retaining ring I is coaxially arranged at annular groove I, and an elastic retaining ring II is coaxially arranged at annular groove II.

7. A heavy-duty pipeline hoisting auxiliary mechanism as claimed in any one of claims 1 to 5, characterized in that: The outer circumference of the spiral wheel is a spiral surface, a wheel shaft hole is arranged at the central axis of the spiral wheel, a keyway I is arranged on the side wall of the wheel shaft hole, a key I is arranged on the wheel shaft of the handwheel, and the key I cooperates with the keyway I.

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