Lifting row with adjustable lifting point spacing

Abstract

The utility model discloses a lifting row with adjustable lifting point spacing, which relates to the technical field of lifting appliances and comprises a beam body and at least one lifting pulley block, upper lifting points are arranged at two ends of the beam body, the lifting pulley block comprises a plurality of transverse shafts which are transversely and detachably connected onto the beam body, and two ends of a third transverse shaft at the edge position are connected with two rope heads of a steel wire rope. Two fixed pulleys I in the direction of the first plane are arranged below the transverse shaft I at the other edge, fixed pulleys II are arranged at the two ends of the transverse shaft II in the middle, and the fixed pulleys II on the front side of the beam body and the fixed pulleys II on the rear side of the beam body are located on two parallel planes and are perpendicular to the first plane; the steel wire rope is sequentially connected with the second fixed pulleys and the two first fixed pulleys in series, a pulley is hung below the steel wire rope between every two adjacent second fixed pulleys in the same plane, and the distance between the pulleys can be changed by changing the position of the transverse shaft. According to the lifting row, a certain pair of lifting points can be independently adjusted, the operation is convenient and fast, and the stress of the whole group of lifting points is still balanced after the distance between the lifting points is changed.

Description

Technical Field

[0001] The utility model belongs to the technical field of hoisting slings, and particularly relates to a lifting row with adjustable sling point spacing. Background Art

[0002] In order to reduce the production cost of enterprises, in hoisting operations, adopting multifunctional, highly adaptable and modular slings has become an effective strategy to reduce costs and increase efficiency. Designing a sling to replace several original slings will greatly reduce the hoisting cost.

[0003] When hoisting large ship hull modules in the prior art, multiple sling points are usually arranged on the module. At this time, a lifting row with multiple sling points is often required for hoisting. The sling point spacing of the lifting row for shipbuilding needs to be in the same proportion as the sling point spacing of the module to ensure uniform force on the sling points of the lifting row. In actual operation, a lifting row for shipbuilding with a sub-row hung at each of the left and right ends of the main lifting row can be used, and the uniform force on the sling points is achieved by the swinging angle of the sub-row. However, this lifting row is only applicable to modules with a small number of sling points. In addition, there is another structural form of the lifting row for shipbuilding, in which multiple pulleys are arranged under the main beam. The pulleys that need to be used can be connected to the sling points of the module, and the pulleys that do not participate in hoisting can be lifted to the bottom of the lifting beam. This lifting row is relatively convenient to connect, but there are idle pulleys in the lifting row, resulting in a relatively large dead weight of the lifting row, a relatively high manufacturing cost, and the idle pulleys need to be lifted to the bottom of the main beam of the lifting row during hoisting, and the lifting of the pulleys occupies the hoisting space.

[0004] In view of this, it is necessary to design a lifting row with adjustable sling point spacing, which can not only realize the change of the sling point spacing, but also realize multi-point force, without affecting the hoisting height and without increasing too much operation and maintenance cost, so as to solve the above technical problems. Summary of the Utility Model

[0005] The purpose of the utility model is to provide a lifting row with adjustable sling point spacing, which can not only translate the position of the whole group of sling points but also move a single pair of sling points independently, and the whole group of sling points can still be evenly stressed after moving the sling point position.

[0006] To achieve the above object, the present utility model provides the following solution: a hanging row with adjustable hanging point spacing, including a beam body and at least one hoisting pulley set. Upper hanging points are respectively arranged at both ends in the length direction of the beam body. The hoisting pulley set includes several transverse axes horizontally connected to the beam body. The transverse axes are detachably connected to the beam body. Two rope ends of a steel wire rope are connected to both ends of the transverse axis three at the edge position. Two fixed pulleys one running along the first plane are arranged below the transverse axis one at the other edge position. Fixed pulleys two are arranged at both ends of several intermediate transverse axes two. Each of the fixed pulleys two on the front side of the beam body is in the second plane, and each of the fixed pulleys two on the rear side of the beam body is in the third plane. The second plane and the third plane are parallel and both perpendicular to the first plane. The steel wire rope successively connects the fixed pulleys two in the second plane, the two fixed pulleys one in the first plane, and the fixed pulleys two in the third plane. A pulley is hung below the steel wire rope between two adjacent fixed pulleys two in the same plane. By changing the longitudinal position of each transverse axis on the beam body, the spacing between the pulleys can be changed.

[0007] Preferably, a plurality of limiting grooves for accommodating the transverse axes are longitudinally and equally spaced on the top of the beam body.

[0008] Preferably, a plurality of stoppers are longitudinally and equally spaced on the top of the beam body, and the limiting grooves are formed between the stoppers.

[0009] Preferably, the limiting groove is a semi-circular groove, which is convenient for matching with the transverse axis.

[0010] Preferably, two rows of the stoppers are arranged near the front and rear sides of the beam body.

[0011] Preferably, a small lifting lug for hoisting is connected to the center of the top of the transverse axis to hoist and move the transverse axis and move it in different limiting grooves.

[0012] Preferably, connecting frames are connected downward from both sides of the beam body at both ends of the transverse axis one, and the fixed pulley one is rotatably connected to the connecting frame.

[0013] Preferably, the fixed pulley two is connected to both ends of the transverse axis two by a clamping plate for limiting.

[0014] Preferably, two groups of the hoisting pulley sets are arranged along the length direction of the beam body, and the two groups of the hoisting pulley sets are symmetrically arranged.

[0015] Preferably, each group of the hoisting pulley sets includes three of the transverse axes two.

[0016] Compared with the prior art, the present utility model discloses at least the following beneficial effects:

[0017] The hanging row with adjustable hanging point spacing proposed by the present utility model uses wire ropes to connect pulleys in series, and the force is automatically balanced, so the safety is higher. In addition, the hanging row of the present utility model can adjust a pair of hanging points separately, with convenient and fast operation. After the hanging point spacing changes, the force on the whole set of hanging points is still balanced. Moreover, the manufacturing cost and operation and maintenance cost of the hanging row of the present utility model are lower. Brief Description of the Drawings

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0019] Figure 1 It is the front view of the embodiment of the present utility model in the intermediate symmetric adjustment state;

[0020] Figure 2 It is the top view of the embodiment of the present utility model in the intermediate symmetric adjustment state;

[0021] Figure 3 is Figure 1 the cross-sectional view at A-A in

[0022] Figure 4 is Figure 1 the cross-sectional view at B-B in

[0023] Figure 5 It is the assembly drawing of the horizontal shaft two and the fixed pulley in the embodiment of the present utility model;

[0024] Figure 6 It is the front view of the embodiment of the present utility model in the two-side symmetric adjustment state;

[0025] Figure 7 It is the front view of the embodiment of the present utility model in the uniformly distributed hanging point adjustment state;

[0026] Figure 8 It is the front view of the embodiment of the present utility model in the left-right asymmetric adjustment state;

[0027] In the figure: 1. Beam body; 2. Upper hanging point; 3. Connecting frame; 4. Pulley; 5. Stopper; 6. Limit groove; 7. Fixed pulley one; 8. Small lifting lug; 9. Clamping plate; 10. Fixed pulley two; 11. Horizontal shaft one; 12. Horizontal shaft two; 13. Horizontal shaft three. Detailed Embodiment

[0028] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0029] In order to make the above objects, features, and advantages of the present invention more obvious and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0030] Refer to Figures 1 to 8 As shown, the present invention provides a hanging row with adjustable hanging point spacing. The hanging row includes a beam body 1. At both ends in the length direction of the beam body 1, upper hanging points 2 are arranged upward. For the convenience of description, the length direction of the beam body 1 is defined as the longitudinal direction, and the width direction is defined as the transverse direction. A number of stoppers 5 are arranged at equal intervals longitudinally on the top of the beam body 1. A semi-circular limiting groove 6 is formed between the stoppers 5. The limiting groove 6 extends along the width direction of the beam body 1. The hanging row further includes a plurality of cross shafts placed in the limiting groove 6 above the beam body 1. The cross shafts can swing in the limiting groove 6 but cannot move left and right. The plurality of cross shafts form a hoisting pulley group. In this embodiment, two hoisting pulley groups are provided. The two hoisting pulley groups are arranged in left and right groups in the length direction of the beam body 1. Each group includes a first cross shaft 11, a third cross shaft 13, and at least one second cross shaft 12. The number of the second cross shafts 12 is increased or decreased according to the number of hanging points. The first cross shaft 11 is arranged close to the middle of the beam body 1, and the third cross shaft 13 is arranged close to both ends of the beam body 1. Among them, two first fixed pulleys 7 are connected below the first cross shaft 11 through a connecting frame 3. The axes of the two first fixed pulleys 7 are consistent with the length direction of the beam body 1. The two ends of the second cross shaft 12 are respectively connected with two second fixed pulleys 10 in a limited way through a clamping plate 9. The axes of the two second fixed pulleys 10 coincide with the axis of the second cross shaft 12 and are both consistent with the width direction of the beam body 1.

[0031] During use, the two ends of the steel wire rope are respectively connected to both ends of the third cross shaft 13. As Figure 1 shown, first, on one side of the beam body 1, one end (the head end) of the steel wire rope is connected to one end of the third cross shaft 13. The other end of the steel wire rope bypasses a pulley 4 and then bypasses one of the second fixed pulleys 10 at the end of the second cross shaft 12, and then bypasses another pulley 4. After bypassing all the second cross shafts 12 in the same way, it is wound from the two first fixed pulleys 7 below the first cross shaft 11 to the other side of the beam body 1, and then bypasses the pulley 4 and the second cross shaft 12 in turn. Finally, the other end (the tail end) of the steel wire rope is connected to the other end of the third cross shaft 13 (the opposite end of the cross shaft connected to the head end of the steel wire rope).

[0032] In the above structure, one end of the wire rope passes through the pulley 4 and the second fixed pulley 10... pulley 4 and the first fixed pulley 7 in sequence from the front of the beam body 1 and enters the back of the beam body 1, and then passes through the pulley 4 and the second fixed pulley 10... pulley 4 in the same way in sequence. Finally, the two rope ends of the same wire rope rigging are respectively connected to both ends of the third cross shaft 13. After the same wire rope is connected in series and the rope ends are fixed, the width spacing of the wire ropes on the front and back sides of the beam body 1 is equal.

[0033] In a further optimized solution, a small lifting lug 8 is welded in the center above each cross shaft (including the first cross shaft 11, the second cross shaft 12, and the third cross shaft 13) for lifting and moving the cross shaft and moving it in different limiting grooves 6.

[0034] In some embodiments, three second cross shafts 12 are provided in each group, and the three second cross shafts 12 are distributed between the first cross shaft 11 and the third cross shaft 13.

[0035] In a further optimized solution, two rows of the stoppers 5 are provided close to the front and rear sides of the beam body 1.

[0036] It should be understood that in practical applications, the longitudinal position of the cross shaft can be moved through other structures. For example, a semi-circular groove is opened at the top of the beam body 1 to replace the limiting groove 6 formed by each stopper 5; or, a number of transverse shaft holes penetrating through the front and rear are opened on the beam body 1, and a plurality of transverse shaft holes are equidistantly distributed along the longitudinal direction, and each cross shaft penetrates and inserts into the transverse shaft holes, and the longitudinal position is moved by changing the inserted position of the cross shaft; there are various ways to achieve this, and no further limitation is made in this embodiment.

[0037] As Figure 1 shown, it is a schematic diagram of the hanging row in the middle symmetric adjustment state of this embodiment. At this time, the two groups of cross shafts are symmetrically arranged on the left and right with the central axis of the beam body 1 as the symmetry axis and close to the symmetry axis.

[0038] As Figure 6 shown, it is a schematic diagram of the hanging row in the two-side symmetric adjustment state of this embodiment; this state is achieved by symmetrically changing the longitudinal positions of the corresponding cross shafts in the two groups on the basis of the above middle symmetric adjustment state, and is a hoisting state symmetrically arranged on the left and right close to both sides of the beam body 1 with the central axis of the beam body 1 as the symmetry axis.

[0039] As Figure 7 shown, it is a schematic diagram of the embodiment of the present utility model in the uniformly distributed hoisting point adjustment state; each cross shaft is longitudinally and uniformly distributed along the length direction of the beam body 1. At this time, each pulley 4 is suspended on the wire rope at equal intervals.

[0040] As Figure 8As shown in the figure, it is a schematic diagram of the embodiment of the present utility model in the left-right asymmetric adjustment state; the distribution of the left and right groups of horizontal axes is not symmetrically distributed with the central axis of the beam 1 at this time.

[0041] In actual use, the placement position of the horizontal axis can be adjusted correspondingly according to the distribution of the suspension points of the object to be lifted, so as to achieve the purpose of adjusting the distribution distance of the pulley blocks 4.

[0042] The hanging row with adjustable suspension point spacing in the above embodiment has the following beneficial effects:

[0043] The hanging row of the embodiment of the present utility model has adjustable suspension point spacing. The pulley blocks are connected in series by steel wires and the forces are automatically balanced, with higher safety. Moreover, a pair of suspension points of the hanging row in this embodiment can be adjusted independently, with convenient and fast operation. After the suspension point spacing changes, the forces on the entire group of suspension points can still remain balanced. In addition, the structure of the hanging row in this embodiment is simple, and the manufacturing cost and operation and maintenance cost are lower.

[0044] The details not described in the present utility model are conventional technical means well known to those skilled in the art.

[0045] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by the terms "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present utility model, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present utility model.

[0046] The above-described embodiments are only used to describe the preferred mode of the present utility model, and do not limit the scope of the present utility model. Without departing from the design spirit of the present utility model, various deformations and improvements made by those of ordinary skill in the art to the technical solution of the present utility model shall fall within the protection scope determined by the claims of the present utility model.

Claims

1. A hanging row with adjustable suspension point spacing, characterized in that, It includes a beam body (1) and at least one hoisting pulley set. Upper suspension points (2) are respectively arranged at both ends of the beam body (1) in the length direction; the hoisting pulley set includes several horizontal axes transversely connected to the beam body (1), the horizontal axes are detachably connected to the beam body (1), both ends of the horizontal axis three (13) at the edge position are connected to two rope ends of a steel wire rope, two fixed pulleys one (7) running along the first plane are arranged below the horizontal axis one (11) at the other edge position, fixed pulleys two (10) are arranged at both ends of several horizontal axes two (12) in the middle, each of the fixed pulleys two (10) on the front side of the beam body (1) is in the second plane, and each of the fixed pulleys two (10) on the rear side of the beam body (1) is in the third plane; the second plane and the third plane are parallel and both perpendicular to the first plane; the steel wire rope successively connects each of the fixed pulleys two (10) in the second plane, the two fixed pulleys one (7) in the first plane, and each of the fixed pulleys two (10) in the third plane; a pulley truck (4) is hung below the steel wire rope between two adjacent fixed pulleys two (10) in the same plane. By changing the longitudinal positions of the horizontal axes on the beam body (1), the spacing between the pulley trucks (4) can be changed.

2. The hanging row with adjustable hanging point spacing according to claim 1, wherein A number of limiting grooves (6) for accommodating the horizontal axes are longitudinally arranged at equal intervals on the top of the beam body (1).

3. The hanging row with adjustable hanging point spacing according to claim 2, characterized in that, A number of stoppers (5) are longitudinally arranged at equal intervals on the top of the beam body (1), and the limiting grooves (6) are formed between the stoppers (5).

4. The hanging row with adjustable hanging point spacing according to claim 2 or 3, characterized in that, The limiting groove (6) is a semi-circular groove.

5. The hanging row with adjustable hanging point spacing according to claim 3, wherein Two rows of the stoppers (5) are arranged close to the front and rear sides of the beam body (1).

6. The hanging row with adjustable hanging point spacing according to claim 2, characterized in that, A small lifting lug (8) for hoisting is connected to the center of the top of the horizontal axis.

7. The hanging row with adjustable suspension point spacing according to claim 1, wherein, Both ends of the horizontal axis one (11) are connected downward from both sides of the beam body (1) with connecting frames (3), and the fixed pulley one (7) is rotatably connected to the connecting frames (3).

8. The hanging row with adjustable hanging point spacing according to claim 1, wherein The fixed pulley two (10) is connected to both ends of the horizontal axis two (12) in a limited way through a clamping plate (9).

9. The hanging row with adjustable hanging point spacing according to claim 1, wherein Two groups of the hoisting pulley sets are arranged along the length direction of the beam body (1), and the two groups of hoisting pulley sets are symmetrically arranged.

10. The hanging row with adjustable hanging point spacing according to claim 9, characterized in that, Each group of the hoisting pulley sets includes three horizontal axes two (12).

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