Spiral steel bar lifting appliance

Abstract

The utility model discloses a coiled steel bar lifting appliance which comprises a lifting appliance main body, the lifting appliance main body comprises a cross beam, lifting lugs are welded at the two ends of the upper surface of the cross beam, and lifting arms are arranged at the two ends of the lower surface of the cross beam; by designing the lubricating mechanism convenient to adjust, the two-way lead screw can rotate to drive the two supporting moving seats to move oppositely, so that the two supporting moving seats stably move in a limited mode to drive the two suspension arms to be adjusted oppositely, adjustment is convenient, time and labor are saved, and rapid hoisting is achieved; when the roller rolls and the supporting movable seat moves, the oiling drainage cotton is slightly extruded, and lubricating oil is discharged to lubricate the bidirectional lead screw and the roller, so that friction is reduced, the service life is prolonged, and the convenience of adjusting the lifting arm and lubricating the bidirectional lead screw and the roller when the lifting appliance main body is used is improved.

Description

Technical Field

[0001] This utility model belongs to the field of lifting tool technology, specifically relating to a lifting tool for coiled steel bars. Background Technology

[0002] Coiled steel bars are a special type of steel, belonging to the category of threaded steel bars. They are ribbed steel bars with spiral transverse ribs. During the processing and production of coiled steel bars, they need to be lifted and transported. This is usually done by installing lifting devices at the end of the equipment at the production site. The existing lifting devices are for lifting coiled steel bars after processing and transportation.

[0003] According to the authorized patent application No. 202123008313.6, which discloses a coiled rebar lifting tool, the existing lifting tool, after installation, directly slides and adjusts the boom to contact the surface of the coiled rebar by contacting the roller inside the sliding groove through the sliding plate at the top. However, when the boom continues to move and engage with the side of the coiled rebar, it is subject to the weight of the coiled rebar, making manual sliding adjustment time-consuming, laborious, and even dangerous. At the same time, lubrication is not convenient during sliding adjustment, and friction is generated during long-term operation, which shortens the service life. This affects the convenience of lifting the boom, adjusting the boom, and lubricating the coiled rebar. Therefore, this utility model proposes a coiled rebar lifting tool. Utility Model Content

[0004] The purpose of this utility model is to provide a coiled rebar lifting tool to solve the problems mentioned in the background art, which are caused by the weight of the coiled rebar when the boom continues to move and engage with the side of the coiled rebar. This makes manual sliding adjustment time-consuming, laborious, and even dangerous. At the same time, it is not easy to lubricate during sliding adjustment, and friction is generated during long-term driving operation, which shortens the service life.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a coiled rebar lifting device, comprising a lifting device body, the lifting device body including a crossbeam, lifting lugs welded to both ends of the upper surface of the crossbeam, and lifting arms provided at both ends of the lower surface of the crossbeam; the lifting device body also includes:

[0006] The lubrication mechanism is easy to adjust, and the easy-to-adjust lubrication mechanism includes a drive assembly disposed inside the crossbeam, support sliding assemblies disposed on both sides of the drive assembly, an oil storage assembly disposed at the top of the drive assembly, and an oil injection lubrication assembly disposed at the bottom of the oil storage assembly.

[0007] The limiting installation mechanism includes a limiting installation component disposed at the end of the boom, and locking components are provided at the ends of the two telescopic limiting installation components.

[0008] Preferably, the drive assembly includes a bidirectional lead screw rotatably connected to the middle position inside the crossbeam. The ends of the bidirectional lead screw are equipped with forward and reverse motors on the surface of the crossbeam. Both ends of the bidirectional lead screw are provided with support movable seats, and the top sides of the support movable seats extend to both sides of the upper surface of the crossbeam. The bottom end of the support movable seat is fixed to the top end of the boom by welding.

[0009] Preferably, the supporting movable seats are symmetrically arranged, and the lower surface of the end of the supporting movable seats is equipped with rollers via bearings, the rollers contacting the surface of the crossbeam.

[0010] Preferably, the support sliding assembly includes a second support groove formed on both sides inside the crossbeam, a first support slider is provided inside the second support groove, and the end of the first support slider is fixed to the side of the support movable seat by welding.

[0011] Preferably, the oil storage assembly includes an oil tank that is sealed and fixed to the upper surface of the support movable seat by screws and a sealing gasket. The top of the oil tank is provided with an inlet, and three mounting holes are provided at the connection between the bottom of the oil tank and the interior of the support movable seat.

[0012] Preferably, the oil lubrication assembly includes an oil-draining cotton disposed inside the mounting hole, and an elastic limiting mounting ring is fixed on the outer surface of the oil-draining cotton, and the elastic limiting mounting ring is elastically engaged with the inside of the mounting hole.

[0013] Preferably, the limiting installation assembly includes a limiting plate disposed inside the boom, an electric cylinder is fixed to the side of the boom, the end of the electric cylinder is fixed to the end of the limiting plate by bolts, a support slide groove three is provided on both sides inside the boom, a support slider four is disposed inside the support slide groove three, and the end of the support slider four is fixed to the side of the limiting plate by welding.

[0014] Preferably, the locking assembly includes a locking pin that is positioned inside one end of the limiting plate, a pull rod that slides on the side of the limiting plate, the end of the pull rod being fixed to the end of the locking pin by bolts, a compression spring being fitted onto the outer surface of the pull rod inside the limiting plate, and a locking hole corresponding to the locking pin being opened on one side of the end of the limiting plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] By designing an easily adjustable lubrication mechanism, the rotation of the bidirectional screw can drive the two support moving seats to move in opposite directions. This allows the two support moving seats to move stably and limit their movement, thereby adjusting the two booms in opposite directions. This facilitates adjustment, saves time and effort, and enables rapid lifting. Simultaneously, during adjustment, lubricating oil enters the oil-injecting cotton. As the drum rolls and the support moving seats move, the oil-injecting cotton is slightly squeezed, releasing lubricating oil to lubricate the bidirectional screw and drum. This reduces friction, extends service life, and improves the convenience of boom adjustment and bidirectional screw and drum lubrication during use of the lifting device. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the structure of this utility model;

[0018] Figure 2 This is a partial cross-sectional view of the crossbeam and the supporting movable seat of this utility model.

[0019] Figure 3 This utility model Figure 2 Enlarged structural diagram of section A;

[0020] Figure 4 This utility model Figure 3 Enlarged structural diagram of section B;

[0021] Figure 5 This is a schematic diagram of the boom and limiting plate structure of this utility model;

[0022] Figure 6 This is a schematic diagram of the two limiting plates of this utility model in the open state.

[0023] Figure 7 This is a partial cross-sectional view of the limiting plate, locking post, and locking hole of this utility model;

[0024] In the diagram: 100, main body of the lifting device; 101, crossbeam; 1011, support moving seat; 1012, double-acting lead screw; 1013, forward and reverse motor; 1014, support slider one; 1015, support slide groove two; 1016, roller; 1017, oil tank; 1018, elastic limit mounting ring; 1019, oil injection and drainage cotton; 1010, mounting hole; 102, boom; 1021, limit plate; 1022, electric cylinder; 1023, support slide groove three; 1024, support slider four; 1025, locking column; 1026, locking hole; 1027, tie rod; 1028, compression spring; 103, lifting lug. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] Please see Figures 1 to 7 This utility model provides a technical solution: a coiled rebar lifting device, including a lifting device body 100, the lifting device body 100 including a crossbeam 101, lifting lugs 103 welded to both ends of the upper surface of the crossbeam 101, and lifting arms 102 provided at both ends of the lower surface of the crossbeam 101. The lifting device body 100 is also provided with:

[0027] The lubrication mechanism is easy to adjust, and the easy-to-adjust lubrication mechanism includes a drive assembly set inside the crossbeam 101, a support sliding assembly set on both sides of the drive assembly, an oil storage assembly set at the top of the drive assembly, and an oil injection lubrication assembly set at the bottom of the oil storage assembly. When the lifting body 100 is lifted by the coiled steel bars, the easy-to-adjust lubrication mechanism can easily adjust the boom 102 and facilitate lubrication to reduce friction.

[0028] To facilitate convenient and time-saving adjustment of the boom 102 via the drive assembly, in this embodiment, preferably, the drive assembly includes a bidirectional lead screw 1012 rotatably connected to the middle position inside the crossbeam 101. A forward / reverse motor 1013 is mounted on the end of the bidirectional lead screw 1012 on the surface of the crossbeam 101. Support seats 1011 are provided at both ends of the bidirectional lead screw 1012, facilitating the rotation of the forward / reverse motor 1013 to drive the bidirectional lead screw 1012 to rotate. Rotating the bidirectional lead screw 1012 drives the two support seats 1011. The movable seat 1011 moves and adjusts towards each other, thereby facilitating the adjustment of the boom 102. The top sides of the movable support seat 1011 extend to the upper surface of the crossbeam 101. The lower end of the movable support seat 1011 is fitted with rollers 1016 via bearings. The rollers 1016 contact the surface of the crossbeam 101. The bottom end of the movable support seat 1011 is fixed to the top end of the boom 102 by welding. When the movable support seat 1011 moves, the top side of the movable support seat smoothly rolls and supports the surface of the crossbeam 101 via the rollers 1016.

[0029] In order to facilitate the stable support and movement of the support movable seat 1011 by means of the support sliding assembly, in this embodiment, preferably, the support sliding assembly includes a second support slide groove 1015 formed on both sides inside the crossbeam 101. A first support slider 1014 is provided inside the second support slide groove 1015, and the end of the first support slider 1014 is fixed to the side of the support movable seat 1011 by welding. When the support movable seat 1011 moves, it can drive the first support slider 1014 to slide inside the second support slide groove 1015, which facilitates the limiting and stable movement adjustment of the support movable seat 1011.

[0030] In order to facilitate the storage of a certain amount of lubricating oil for lubrication treatment through the oil storage component, in this embodiment, preferably, the oil storage component includes an oil tank 1017 that is sealed and fixed to the upper surface of the support movable seat 1011 by screws and sealing gaskets. The top of the oil tank 1017 is provided with an inlet to facilitate the entry of lubricating oil into the interior of the oil tank 1017 for storage and use. Three mounting holes 1010 are provided at the connection between the bottom of the interior of the oil tank 1017 and the interior of the support movable seat 1011, so as to facilitate the installation of the oil injection guide cotton 1019 inside the mounting holes 1010 and to allow the lubricating oil stored inside the oil tank 1017 to be injected into the oil tank 1017.

[0031] To facilitate lubrication of the roller 1016 and the bidirectional lead screw 1012 and reduce friction through the lubrication assembly, in this embodiment, preferably, the lubrication assembly includes an oil-draining cotton 1019 disposed inside the mounting hole 1010. An elastic limiting mounting ring 1018 is fixed to the outer surface of the oil-draining cotton 1019, and the elastic limiting mounting ring 1018 is elastically engaged with the inside of the mounting hole 1010. The oil-draining cotton 1019 can be limited and installed inside the mounting hole 1010 by the elastic limiting mounting ring 1018, and the bottom of the oil reservoir 1017 is sealed by a sealing gasket during drainage to prevent the drained lubricating oil from leaking to the outside.

[0032] The limiting installation mechanism includes limiting installation components disposed at the ends of the boom 102. The ends of the two telescopic limiting installation components are provided with locking components. When the lifting body 100 lifts the coiled steel wire, the limiting installation mechanism limits the installation of the two booms 102. This facilitates the adjustment of the length for limiting according to the size of the bundle of coiled steel wire being lifted, and ensures safe operation.

[0033] To facilitate the stable lifting of reinforcing bars by limiting the ends of the two booms 102 using a limiting installation assembly, in this embodiment, preferably, the limiting installation assembly includes a limiting plate 1021 disposed inside the boom 102. An electric cylinder 1022 is fixed to the side of the boom 102, and the end of the electric cylinder 1022 is fixed to the end of the limiting plate 1021 by bolts. This allows the limiting plate 1021 to move according to the size of the coiled reinforcing bars being lifted, driven by the electric cylinder 1022, so that the two limiting plates 1021 can be engaged for convenient limiting. Support grooves 1023 are provided on both sides of the inside of the boom 102. A support slider 1024 is disposed inside the support groove 1023. The end of the support slider 1024 is fixed to the side of the limiting plate 1021 by welding, so that the limiting plate 1021 moves and drives the support slider 1024 to slide stably and adjust inside the support groove 1023.

[0034] To facilitate locking and supporting the two limiting plates 1021 after they are locked and engaged by the locking assembly, in this embodiment, preferably, the locking assembly includes a locking post 1025 that is locked inside one end of the limiting plate 1021. A pull rod 1027 slides on the side of the limiting plate 1021. The end of the pull rod 1027 is fixed to the end of the locking post 1025 by bolts. A compression spring 1028 is fitted inside the limiting plate 1021 on the outer surface of the pull rod 1027. The compression spring 1028 can elastically connect the pull rod 1027 and the locking post 1025, making it easy to elastically engage the locking post 1025. A locking hole 1026 corresponding to the locking post 1025 is opened on one side of the end of the limiting plate 1021, until the locking post 1025 is elastically engaged and locked inside the locking hole 1026, which facilitates locking and supporting the two limiting plates 1021.

[0035] In this utility model, the forward and reverse reversing motor 1013 is model number f0vxKfMQ, and the electric cylinder 1022 is model number J4s1GqKZ.

[0036] The working principle and usage process of this utility model are as follows: When using this type of coiled rebar lifting device, it is directly fixed to the external drive end via the lifting lug 103. Oil is then injected into the device through the oil inlet at the top of the oil tank 1017. When lifting the coiled rebar, the forward and reverse motor 1013 drives the bidirectional lead screw 1012 to rotate. The rotation of the bidirectional lead screw 1012 causes the support seats 1011 at both ends to move within the crossbeam 101, limiting the movement of the outer surface of the bidirectional lead screw 1012. At the same time, the top two sides of the support moving seat 1011 are smoothly moved by the rollers 1016 contacting the surface of the crossbeam 101 until the two support moving seats 1011 are moved towards each other and the two booms 102 are moved, so that the ends of the booms 102 are engaged with the two sides of the coiled steel bar and the ends are embedded in the lower surface of the coiled steel bar. This makes it convenient to adjust the booms 102 when lifting the coiled steel bar, saving time and effort, lifting quickly, and improving the convenience of adjusting the booms 102 when lifting the coiled steel bar by the lifting device body 100.

[0037] Secondly, during adjustment, the lubricating oil injected into the oil reservoir 1017 is immersed into the oil-injecting cotton 1019. At this time, when the support moving seat 1011 is driven on the outer surface of the double-acting screw 1012, the oil-injecting cotton 1019 is slightly squeezed and lubricating oil is released to lubricate the double-acting screw 1012. At the same time, when the drum 1016 rolls, the oil-injecting cotton 1019 is squeezed again to release oil for lubrication. This facilitates effective oil injection, reduces friction, extends service life, and improves the convenience of adjusting the boom 102 to lubricate the double-acting screw 1012 and drum 1016 when the lifting device body 100 is in use.

[0038] Then, when adjusting the two booms 102 and embedding the ends into the bottom, it is necessary to limit the two booms 102. Pulling the pull rod 1027 will embed the locking post 1025 inside. The electric cylinder 1022 will move to drive the limiting plate 1021 to move. When the limiting plate 1021 moves, it will drive the support slider 1024 to slide inside the support groove 1023, so that the two limiting plates 1021 can move stably and lock into place. Then, the pull rod 1027 will be released. The deformation of the compression spring 1028 will drive the pull rod 1027 to elastically connect with the locking post 1025 until the limiting plate 1021 is locked into the corresponding locking hole 1026. This allows the two limiting plates 1021 to be conveniently adjusted in length according to the size of the bundle of coiled steel bars being lifted, and to be safely operated. This improves the convenience of the lifting device body 100 in limiting the two booms 102 when lifting coiled steel bars.

[0039] Although embodiments of the present invention have been shown and described (see the detailed description above), it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lifting device for coiled steel bars, comprising a lifting device body (100), wherein the lifting device body (100) includes a crossbeam (101), wherein lifting lugs (103) are welded to both ends of the upper surface of the crossbeam (101), and lifting arms (102) are provided at both ends of the lower surface of the crossbeam (101), characterized in that: The lifting device body (100) is also equipped with: The lubrication mechanism is easy to adjust, and the easy-to-adjust lubrication mechanism includes a drive assembly disposed inside the crossbeam (101), a support sliding assembly disposed on both sides of the drive assembly, an oil storage assembly disposed at the top of the drive assembly, and an oil injection lubrication assembly disposed at the bottom of the oil storage assembly. The limiting installation mechanism includes a limiting installation component disposed at the end of the boom (102), and locking components are provided at the ends of the two telescopic limiting installation components.

2. The rebar lifting tool according to claim 1, characterized in that: The drive assembly includes a bidirectional lead screw (1012) rotatably connected to the middle position inside the crossbeam (101). The ends of the bidirectional lead screw (1012) are mounted on the surface of the crossbeam (101) with a forward and reverse motor (1013). Both ends of the bidirectional lead screw (1012) are provided with support moving seats (1011), and the top sides of the support moving seats (1011) extend to both sides of the upper surface of the crossbeam (101). The bottom end of the support moving seats (1011) is fixed to the top end of the boom (102) by welding.

3. The rebar lifting tool according to claim 2, characterized in that: The two support movable seats (1011) are symmetrically arranged, and a roller (1016) is mounted on the lower surface of the end of the support movable seat (1011) via a bearing. The roller (1016) contacts the surface of the crossbeam (101).

4. The rebar lifting tool according to claim 2, characterized in that: The supporting sliding assembly includes a second supporting slide groove (1015) opened on both sides inside the crossbeam (101). A first supporting slider (1014) is provided inside the second supporting slide groove (1015), and the end of the first supporting slider (1014) is fixed to the side of the supporting movable seat (1011) by welding.

5. A rebar lifting tool according to claim 3, characterized in that: The oil storage assembly includes an oil tank (1017) that is sealed and fixed to the upper surface of the support moving base (1011) by screws and sealing gaskets. The top of the oil tank (1017) is provided with an inlet, and three mounting holes (1010) are provided at the connection between the bottom of the inside of the oil tank (1017) and the inside of the support moving base (1011).

6. A rebar lifting tool according to claim 5, characterized in that: The oil lubrication assembly includes an oil-draining cotton (1019) disposed inside the mounting hole (1010). An elastic limiting mounting ring (1018) is fixed on the outer surface of the oil-draining cotton (1019), and the elastic limiting mounting ring (1018) is elastically engaged with the inside of the mounting hole (1010).

7. The rebar lifting tool according to claim 1, characterized in that: The limiting installation assembly includes a limiting plate (1021) disposed inside the boom (102). An electric cylinder (1022) is fixed to the side of the boom (102). The end of the electric cylinder (1022) is fixed to the end of the limiting plate (1021) by bolts. Supporting grooves three (1023) are provided on both sides inside the boom (102). A supporting slider four (1024) is disposed inside the supporting groove three (1023). The end of the supporting slider four (1024) is fixed to the side of the limiting plate (1021) by welding.

8. A rebar lifting tool according to claim 7, characterized in that: The locking assembly includes a locking post (1025) that is positioned inside one end of a limiting plate (1021). A pull rod (1027) slides on the side of the limiting plate (1021). The end of the pull rod (1027) is fixed to the end of the locking post (1025) by bolts. A compression spring (1028) is fitted inside the limiting plate (1021) on the outer surface of the pull rod (1027). A locking hole (1026) corresponding to the locking post (1025) is opened on one side of the end of the limiting plate (1021).

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