Lifting appliance for hanging object with hole

Abstract

The utility model discloses a lifting appliance for hanging objects with holes, relates to a load hanging element for a crane, a winch, a winch or a tackle, and aims to enable the lifting appliance to be capable of hanging objects with different sizes and holes and ensure the stability of the objects in the lifting process. According to the technical scheme, the lifting appliance for hanging the object with the hole comprises a lifting frame, a connecting bolt and an ejecting piece, the connecting bolt and the ejecting piece are installed on the lifting frame, the lifting frame comprises a center portion and at least two lifting arms which are arranged in a radial mode with the center portion as the circle center, and each lifting arm is provided with a strip-shaped hole in the length direction of the lifting arm. A matched connecting bolt is arranged in the strip-shaped hole and is used for fixedly connecting an object needing to be lifted to the lifting frame; and a jacking hole is formed between the end face, away from the center part, of each lifting arm and the corresponding strip-shaped hole, a jacking piece is arranged in each jacking hole, the jacking pieces are rotated, the connecting bolts can be jacked by the jacking pieces, and the stability of the objects in the lifting process is guaranteed. The hook is used for hanging objects with holes.

Description

Technical Field

[0001] The utility model relates to a load hanging element for a crane, a winch, a hoist or a pulley, in particular to a sling for hanging an object with holes. Background Art

[0002] In various industries, especially in the metallurgical industry, there are often objects in the shapes of square, semi-circular, etc. that need to be disassembled, installed, transferred, etc. The objects have holes, which can be threaded holes or non-threaded holes, and the objects are of relatively large mass, and slings and lifting equipment are needed for hoisting. Usually, the object can be tied with a steel wire rope and then hoisted, but the bundling operation is rather troublesome and the risk of the object falling is relatively high.

[0003] The patent with the authorization announcement number of CN 221459595 U discloses a ring protection sling for a wind turbine tower barrel, which includes a cross reinforcing rib plate and a lifting ring fixedly installed at the center of the top of the cross reinforcing rib plate. Reinforcing screw assemblies are threadedly connected to the four corners of the cross reinforcing rib plate. A lifting reinforcement plate is fixedly connected to the bottom of the cross reinforcing rib plate, and the bottom of the lifting reinforcement plate is screwed to the tower barrel with flanges provided at both ends. This sling fixes the cross reinforcing rib plate on the flange at the top of the tower barrel through the reinforcing bolts and fixing bolts on the lifting reinforcement plate, and the reinforcing screw assemblies on the four sides of the cross reinforcing rib plate are threadedly connected to the annular fixing assembly at the bottom of the tower barrel. This sling can only be used for hanging a wind turbine tower barrel with a fixed size and cannot be used for hanging wind turbine tower barrels with different sizes.

[0004] The patent with the authorization announcement number of CN 211004175 U discloses a sling suitable for lifting bulk bags, which includes a cross lifting arm. A lifting lug connected to a lifting device is arranged at the upper end of the cross lifting arm. Sliding grooves are arranged on the four cantilever arms of the cross lifting arm. The sliding grooves are located at the upper ends of the cantilever arms and extend along the lengths of the cantilever arms. A distance adjusting seat is slidably installed in each sliding groove. A clamping groove for placing the sling of the bulk bag is arranged at the upper end of the distance adjusting seat. A locking mechanism for locking the position of the distance adjusting seat is also included. The locking mechanism is a locking bolt. A plurality of threaded through holes matching with the locking bolt are arranged at equal intervals along the length direction of the bottom of the sliding groove for screwing the locking bolt into the threaded through hole below the distance adjusting seat to clamp the distance adjusting seat in the dovetail groove. This sling can only fix the distance adjusting seat at several fixed positions and cannot freely adjust the position of the distance adjusting seat in the dovetail groove.

[0005] The patent with the authorization announcement number CN 220376074 U discloses a cross-shaped sling suitable for lifting ton bags, which includes a central block, a transverse sling beam and a longitudinal sling beam. The central block is composed of upper and lower shells connected by bolts, and a lifting ring for connecting with the hook of the lifting hoist is arranged at the top of the central block. A cross-shaped through hole is arranged in the central block, and the transverse sling beam and the longitudinal sling beam are inserted into the cross-shaped through hole. Telescopic cylinders are coaxially arranged in the transverse sling beam and the longitudinal sling beam, and hooks are arranged at the telescopic ends of the telescopic cylinders. The position of the hook can be adjusted through the telescopic cylinders, so as to lift ton bags of different specifications. This cross-shaped sling adjusts the position of the hook by using telescopic cylinders, and the whole structure is relatively complex. Moreover, an additional power is required to drive the telescopic cylinders, which is prone to failure and has poor stability. Summary of the Utility Model

[0006] The utility model provides a sling for hanging an object with a hole, aiming to enable the sling to hang objects of different sizes with holes and ensure the stability of the object during hoisting.

[0007] The technical solution adopted by the utility model is as follows: a sling for hanging an object with a hole includes a suspension frame and connecting bolts and fastening members installed on the suspension frame. The suspension frame includes a central part and at least two sling arms arranged radially with the central part as the center. Each sling arm is located in the same plane and is relatively fixed. The suspension frame is axially symmetric and has at least two axes of symmetry passing through the central part. A hoisting structure is arranged at the central part of the suspension frame, or hoisting structures are respectively arranged on each sling arm; bar-shaped holes are respectively arranged along the length direction of each sling arm, the bar-shaped holes penetrate the sling arms, and the center lines of the bar-shaped holes are perpendicular to the planes corresponding to the sling arms. Adaptable connecting bolts are arranged in the bar-shaped holes; a fastening hole is arranged between the end face of each sling arm far from the central part and the bar-shaped hole. The center line direction of the fastening hole is consistent with the length direction of the sling arm. The fastening hole is a threaded hole, and a fastening member is arranged in the fastening hole. The fastening member includes a screw rod located in the fastening hole and capable of extending into the bar-shaped hole. One end of the screw rod located outside the fastening hole is also provided with a rotation adjustment section or rotation adjustment structure for rotating the screw rod.

[0008] In order to balance the force on the suspension frame, further: the lengths of all sling arms are equal.

[0009] In order to balance the force on the suspension frame, further: the central angles corresponding to any two adjacent sling arms are equal.

[0010] In order to facilitate the manufacture of the suspension frame and optimize the force on the suspension frame, further: the suspension frame includes at least one cross beam. Each cross beam intersects and is fixedly connected at the central position, and forms sling arms with a quantity twice that of the number of cross beams. For example, the suspension frame is in the shape of a cross, there are four sling arms, and the lengths of all sling arms are equal.

[0011] In order to ensure the strength of the suspension frame, specifically: the suspension frame is made of steel.

[0012] The hoisting structure is used to connect with the hook of the hoisting device. Specifically, the hoisting structure is a lifting ring, a hook or a lifting hole.

[0013] In order to facilitate the manual rotation of the tightening member, further: the tightening member is in a right-angled shape, the screw rod section and the rotation adjustment section are perpendicular to each other and fixedly connected; or, the tightening member is a tightening bolt; or, a through hole is provided at one end of the screw rod section of the tightening member away from the central part, a straight rod is inserted through the through hole, and there is a clearance fit between the two.

[0014] The beneficial effects of the present utility model are: the connecting bolt passes through the strip-shaped hole of the boom and is threadedly connected with the threaded hole of the object to be hoisted, or the connecting bolt passes through the strip-shaped hole of the boom and is inserted into the hole of the object to be hoisted and locked by a nut, then the object to be hoisted can be fixedly connected to the hanging frame, and then the hoisting structure of the hanging frame is used for hoisting. The connecting bolt is located in the strip-shaped hole, and the connecting bolt can move along the length direction of the strip-shaped hole, that is, the position of the connecting bolt can move, so that objects of different sizes can be hung. After the connecting bolt is in place, rotate the screw rod of the tightening member to make the tightening member tighten the connecting bolt, so that the object and the hanging frame are kept fixed, and the safety and stability of the object during hoisting can be ensured. Description of the Drawings

[0015] Figure 1 is a schematic structural diagram of the present utility model after hoisting an object in an embodiment.

[0016] Figure 2 is a schematic structural diagram of another embodiment of the present utility model.

[0017] Reference numerals: connecting bolt 1, boom 2, strip-shaped hole 3, lifting ring 4, tightening bolt 5, object 6. Detailed Embodiment

[0018] The present utility model will be further described below with reference to the drawings.

[0019] See Figure 1 and Figure 2 , the lifting tool of the present utility model for hoisting an object with a hole includes a hanging frame and a connecting bolt 1 and a tightening member installed on the hanging frame.

[0020] The hanging frame includes a central part and at least two booms 2 arranged radially with the central part as the center. The central part can be a physical structure different from the boom 2, and one end of each boom 2 is fixedly connected to the central part; or, the central part is only a part rather than a physical structure, and this part is the intersection part of each boom 2. For example, the hanging frame includes at least one cross beam, and each cross beam intersects and is fixedly connected at the central position to form booms 2 with a number twice that of the number of cross beams. Among them, the fixed connection methods include mechanical connection and welding connection. In order to ensure the strength of the hanging frame, the hanging frame is made of steel.

[0021] Each suspension arm 2 is located in the same plane and is relatively fixed, so that the hanger maintains a fixed shape. The hanger is axially symmetric and has at least two axes of symmetry passing through the central part, so that the hanger can maintain balance after connecting an object 6 with holes. The lengths of the suspension arms 2 can be equal or unequal. For the purpose of balancing the force on the hanger, the lengths of the suspension arms 2 are preferably equal. The central angles corresponding to any two adjacent suspension arms 2 can be equal or unequal. For the purpose of balancing the force on the hanger, the central angles corresponding to any two adjacent suspension arms 2 are preferably equal. For example, in Figure 1 the illustrated embodiment, there are two suspension arms 2, and the two suspension arms 2 are an integral body, that is, the two suspension arms 2 are two sections of a crossbeam, and the middle part of the crossbeam is the central part of the hanger. In Figure 2 the illustrated embodiment, the hanger is in the shape of a cross, and the hanger is formed by fixedly connecting two crossbeams. The fixedly connected part is at the central parts of the two crossbeams, and the two crossbeams form four suspension arms 2, and the lengths of the suspension arms 2 are equal.

[0022] A lifting structure is arranged at the central part of the hanger, or a lifting structure is respectively arranged on each suspension arm 2. The lifting structure is used to be connected with the hook of the lifting device, and the lifting structure is a lifting ring 4, a hook or a lifting hole. For example, the lifting structure is a lifting ring 4, and the lifting ring 4 is fixedly welded to the central part of the hanger. Refer to Figure 1 and Figure 2 .

[0023] Strip-shaped holes 3 are respectively arranged along the length direction of each suspension arm 2. The strip-shaped holes 3 penetrate through the suspension arms 2, and the center lines of the strip-shaped holes 3 are perpendicular to the planes corresponding to the suspension arms 2. Fitting connecting bolts 1 are arranged in the strip-shaped holes 3. The diameter of the connecting bolt 1 is not greater than the width of the strip-shaped hole. The strip-shaped hole is generally a waist-shaped hole. The connecting bolt 1 is used to fix the object 6 to be lifted to the hanger. When the object 6 to be lifted has a threaded hole adapted to the connecting bolt 1, the connecting bolt 1 passes through the strip-shaped hole 3 of the suspension arm 2 and is threadedly connected with the threaded hole of the object 6 to be lifted. When the object 6 to be lifted does not have a threaded hole adapted to the connecting bolt 1, the connecting bolt 1 passes through the strip-shaped hole 3 of the suspension arm 2 and is inserted into the hole of the object 6 to be lifted and locked by a nut, so that the object 6 to be lifted can be fixedly connected to the hanger, and then the object 6 can be lifted by using the lifting structure of the hanger. The connecting bolt 1 is located in the strip-shaped hole 3, and the connecting bolt 1 can move along the length direction of the strip-shaped hole 3, that is, the position of the connecting bolt 1 can be moved, so that objects 6 of different sizes can be hung. Different sizes and lengths of connecting bolts 1 can also be arranged in each strip-shaped hole 3, and multiple specifications of connecting bolts 1 are arranged in the strip-shaped holes 3, which is convenient for lifting objects 6 of different masses and different sizes.

[0024] After the connecting bolt 1 is fixedly connected to the object 6, in order to keep the connecting bolt 1 fixed in the strip-shaped hole 3, a tightening hole is provided between the end faces of each boom 2 away from the central part and the strip-shaped hole 3. The center line direction of the tightening hole is consistent with the length direction of the boom 2. The tightening hole is a threaded hole, and a tightening member is provided in the tightening hole. The tightening member includes a screw rod located in the tightening hole and extendable into the strip-shaped hole 3. The external thread of the screw rod is adapted to the thread of the tightening hole. One end of the screw rod located outside the tightening hole is also provided with a rotation adjustment section or a rotation adjustment structure for rotating the screw rod. After the connecting bolt 1 is in place, rotate the screw rod of the tightening member to make the tightening member tighten the connecting bolt 1, so that the object 6 is fixed to the hanging bracket, and the stability of the object 6 during hoisting can be ensured. In order to facilitate manual rotation of the tightening member, the tightening member is in a right-angled shape, the screw rod section and the rotation adjustment section are perpendicular to each other and fixedly connected; or, the tightening member is a tightening bolt 5; or, a through hole is provided at one end of the screw rod section of the tightening member away from the central part, and a straight rod is inserted into the through hole, and there is a clearance fit between the two.

Claims

1. A sling for hanging an object with holes, characterized in that: It includes a hanger, as well as a connecting bolt (1) and a tightening member installed on the hanger. The hanger includes a central part and at least two boom arms (2) radially arranged with the central part as the center of the circle. Each boom arm (2) is located in the same plane and is relatively fixed. The hanger is axisymmetric and has at least two symmetry axes passing through the central part. A hoisting structure is provided at the central part of the hanger, or a hoisting structure is provided on each boom arm (2) respectively; a strip-shaped hole (3) is provided on each boom arm (2) along its length direction. The strip-shaped hole (3) penetrates the boom arm (2), and the center line of the strip-shaped hole (3) is perpendicular to the plane corresponding to each boom arm (2). A suitable connecting bolt (1) is arranged in the strip-shaped hole (3); a tightening hole is provided between the end face of each boom arm (2) far from the central part and the strip-shaped hole (3). The center line direction of the tightening hole is consistent with the length direction of the boom arm (2). The tightening hole is a threaded hole, and a tightening member is arranged in the tightening hole. The tightening member includes a screw rod located in the tightening hole and capable of extending into the strip-shaped hole (3). One end of the screw rod located outside the tightening hole is also provided with a rotation adjustment section or a rotation adjustment structure for rotating the screw rod.

2. The sling for hanging an object with a hole according to claim 1, characterized in that: The lengths of all the boom arms (2) are equal.

3. The sling for hanging an object with holes, as described in claim 1, is characterized in that: The central angles corresponding to any two adjacent boom arms (2) are equal.

4. The sling for suspending an object with holes, as claimed in claim 1, wherein: The hanger includes at least one cross beam. Each cross beam intersects and is fixedly connected at the central position, and forms boom arms (2) with a quantity twice that of the number of cross beams.

5. The sling for hanging an object with holes as claimed in claim 4, wherein: The hanger is in the shape of a cross, and there are four boom arms (2), and the lengths of all the boom arms (2) are equal.

6. The sling for hanging an object with a hole, as claimed in claim 1, wherein: The hanger is made of steel.

7. The sling for hanging an object with a hole according to claim 1, characterized in that: The hoisting structure is a lifting ring (4), a hook or a hoisting hole.

8. The sling for hanging an object with holes according to any one of claims 1 to 7, characterized in that: The tightening member is in a right-angled shape, and the screw rod section and the rotation adjustment section are perpendicular to each other and fixedly connected; or, the tightening member is a tightening bolt (5); or, a through hole is provided at one end of the screw rod section of the tightening member far from the central part, and a straight rod is inserted into the through hole, and there is a clearance fit between the two.

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