Hoisting device for bar transfer

Abstract

The utility model discloses a hoisting device for bar transfer, which belongs to the technical field of hoisting, and comprises a hoisting beam and a shear fork support component, a lifting lug is fixedly arranged in the center of the top end of the hoisting beam, and hinged end seats are respectively arranged on the lower sides of the two ends of the hoisting beam; the two groups of shear fork support assemblies are correspondingly mounted in the hinged end seats, and are synchronously connected through the connecting cross rod; each shear fork supporting assembly is correspondingly provided with a locking mechanism, and the locking mechanisms are used for limiting the opening degree of the shear fork supporting assemblies. The hoisting device is simple in structure, safe, reliable, low in manufacturing cost and capable of improving the transfer efficiency and safety of the small bar samples.

Description

Technical Field

[0001] The utility model relates to the technical field of hoisting, in particular to a hoisting device for transporting bar materials. Background Art

[0002] The bar cutting production process involves various production restarts after shutdowns such as maintenance. In order to ensure that the large material passes through at one time without generating steel piles and defective products, the workshop generally trial-produces 3 to 5 small samples before producing large materials. The sample size is about φ85mm*4000mm. Because the samples need to be burned and heated to about 1100℃ in the furnace, they need to be quickly lifted to the rolling line for rolling. In order to ensure the temperature of the samples, the process minimizes human participation as much as possible and reduces the risk of process transportation. Therefore, the workshop has produced a special bar lifting device to improve the transportation efficiency of bar samples. Utility Model Content

[0003] Technical problems solved: In response to the technical problems existing in the transportation of plate samples, the utility model provides a lifting device for bar transportation, which can improve the transportation efficiency and safety of small bar samples.

[0004] Technical solution: The utility model provides a hoisting device for bar transportation, which includes a hoisting beam and a scissor support assembly;

[0005] A lifting lug is fixedly provided at the center of the top of the lifting beam, and hinged end seats are respectively provided on the lower sides of both ends of the lifting beam;

[0006] The scissor brace assembly includes two groups respectively installed in the hinged end seats, and the two groups of scissor brace assemblies are synchronously connected through a connecting cross bar; each of the scissor brace assemblies is correspondingly provided with a locking mechanism, and the locking mechanism is used to limit the opening degree of the scissor brace assembly.

[0007] Preferably, the scissors-bracing assembly includes a first lifting arm and a second lifting arm hingedly connected by a first hinge portion, the distal end of the first lifting arm is hingedly connected to one end of the first clamping arm by a third hinge portion, the distal end of the second lifting arm is hingedly connected to one end of the second clamping arm by a fourth hinge portion, and the distal ends of the first clamping arm and the second clamping arm are hingedly connected by a second hinge portion.

[0008] Preferably, the distal ends of the first clamping arm and the second clamping arm are correspondingly fixedly connected with clamping claws, and the inner sides of the clamping claws are provided with clamping portions for clamping the rod.

[0009] Preferably, both ends of the connecting cross bar are fixedly connected to the second hinged parts of the two groups of scissor brace assemblies respectively.

[0010] Preferably, the locking mechanism includes a locking link, one end of the locking link is hinged to the middle part of the first lifting arm through a locking hinge part, the side wall of the other end of the locking link is provided with a through limiting slide groove, and the locking link is slidingly connected to the locking limiting part at the corresponding position in the middle part of the second lifting arm through the limiting slide groove, and the length of the limiting slide groove limits the opening range of the first lifting arm and the second lifting arm.

[0011] Preferably, a plurality of locking pin holes are provided on one side of the locking link in a direction perpendicular to the limiting sliding groove, and the spacing between adjacent locking pin holes is the same.

[0012] Preferably, the locking link and the end corresponding to the limiting sliding groove adopt a widened structure.

[0013] Compared with the prior art, the present invention has at least the following beneficial effects:

[0014] The lifting device of the utility model has a simple structure, is safe and reliable, and has a low manufacturing cost, and can improve the transportation efficiency and safety of small bar samples.

[0015] The present invention also has other beneficial effects which are described in the embodiment section of the specification and will not be described in detail here. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the three-dimensional structure of the lifting device of the utility model;

[0017] Figure 2 for Figure 1 Front view of the middle locking link structure;

[0018] Figure 3 for Figure 2 Top view of the middle locking link structure.

[0019] Figure markings: 100, lifting device; 1, lifting beam; 2, scissors support assembly; 3, hinged end seat; 4, first lifting arm; 5, second lifting arm; 6, first clamping arm; 7, second clamping arm; 8, first hinge; 9, clamping claw; 10, second hinge; 11, third hinge; 12, fourth hinge; 13, locking hinge; 14, locking limit; 15, locking mechanism; 151, locking link; 152, hinge hole; 153, widening structure; 154, limiting slide; 155, locking pin hole; 16, connecting cross bar; 17, lifting ear. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following Figures 1-3The technical solutions of the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0021] like Figure 1 As shown, a lifting device for bar transportation described in an embodiment of the present invention, the lifting device 100 includes a lifting beam 1 and a scissor support assembly 2, and a lifting ear 17 is fixedly provided at the center of the top of the lifting beam 1, and the lifting ear 17 can be connected to the hook of the electric hoist.

[0022] Articulated end seats 3 are respectively provided on the lower sides of both ends of the lifting beam 1. The scissor brace assembly 2 includes two groups, which are respectively installed in the articulated end seats 3. The two groups of scissor brace assemblies 2 are synchronously connected by a connecting cross bar 16. Specifically, the scissor-bracing assembly 2 includes a first lifting arm 4 and a second lifting arm 5 hingedly connected by a first hinge portion 8, the distal end of the first lifting arm 4 is hinged to one end of the first clamping arm 6 through a third hinge portion 11, the distal end of the second lifting arm 5 is hinged to one end of the second clamping arm 7 through a fourth hinge portion 12, and the distal ends of the first clamping arm 6 and the second clamping arm 7 are hingedly connected by a second hinge portion 10, and the two ends of the connecting cross bar 16 are respectively fixedly connected to the second hinge portions 10 of the two groups of scissor-bracing assemblies 2, and the distal ends of the first clamping arm 6 and the second clamping arm 7 are correspondingly fixedly connected with clamping claws 9, and a clamping portion for clamping the rod is provided on the inner side of the clamping claw 9. The opening degree of the scissor-bracing assembly 2 can be adjusted to drive the opening or closing of the clamping claw 9, so that the two groups of scissor-bracing assemblies 2 can move synchronously to realize the grabbing and lifting action of the rod. It should be noted that the opening or closing of the scissor support assembly 2 is based on its own gravity. For example, when it is necessary to grab the rod, the electric hoist is controlled to lower the lifting device. When the clamping claws 9 at the lower end of the scissor support assembly 2 touch the rod or the ground, the lifting device below can continue to deform the scissor support assembly 2 based on its own gravity to realize the opening of the two sets of clamping claws 9, thereby realizing the grabbing of the rod; when the rod is grabbed, as the lifting device is lifted based on its own gravity, the scissor support assembly 2 stretches along the height direction, which can drive the two sets of clamping claws 9 to fix and clamp the rod, and the lifting device can be lifted further to realize the grabbing and transportation of the rod.

[0023] like Figures 1-3As shown, in order to improve the safety of the lifting device during the transportation process, each scissor-bracing assembly 2 is correspondingly provided with a locking mechanism 15, which is used to limit the opening degree of the scissor-bracing assembly 2. Specifically, the locking mechanism 15 includes a locking link 151, one end of which is hingedly connected to the middle portion of the first lifting arm 4 via the locking hinge 13. This end is provided with a hinge hole 152. The other end of the locking link 151 is provided with a through-limiting slot 154 on the side wall. The locking link 151 is slidably connected to the locking limit portion 14 at a corresponding position in the middle portion of the second lifting arm 5 via the limiting slot 154. The length of the limiting slot 154 limits the opening range of the first lifting arm 4 and the second lifting arm 5. The limiting slot 154 can meet the opening or closing range conditions of the angle between the first lifting arm 4 and the second lifting arm 5, and can also limit the angle range between the first lifting arm 4 and the second lifting arm 5, thereby ensuring that the scissor brace assembly 2 has better stability during operation. It should be noted that the locking hinge 13 and the locking limit portion 14 use a connecting pivot to achieve the hinge function.

[0024] like Figures 2 and 3 As shown, a plurality of locking pin holes 155 are provided on one side of the locking link 151 in a vertical direction corresponding to the limiting slide 154, and the adjacent locking pin holes 155 have the same spacing. When the lifting device completes the grabbing, as the scissors-bracing assembly 2 lifts it and pulls the rope along the height direction, the locking limit part 14 slides from the outside to the inside along the limiting slide 154, and then the limiting pin is correspondingly inserted into the locking pin hole 155 adjacent to the outside of the locking limit part 14, so that the locking limit part 14 can be locked in the position in the limiting slide 154, thereby locking the opening degree of the scissors-bracing assembly 2, preventing the rod from falling off during transportation, and improving the safety of the lifting device during transportation.

[0025] A widening structure 153 is adopted at one end corresponding to the locking link 151 and the limiting sliding groove 154 to improve the connection strength between the locking link and the locking limiting portion.

[0026] The above is a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A hoisting device for bar transportation, characterized in that: The hoisting device (100) comprises a hoisting beam (1) and a scissor brace assembly (2); A lifting lug (17) is fixedly provided at the center of the top end of the lifting beam (1), and hinged end seats (3) are respectively provided on the lower sides of both ends of the lifting beam (1); The scissor brace assembly (2) comprises two groups respectively mounted in the hinged end seat (3), and the two groups of scissor brace assemblies (2) are synchronously connected via a connecting cross bar (16); each of the scissor brace assemblies (2) is correspondingly provided with a locking mechanism (15), and the locking mechanism (15) is used to limit the opening degree of the scissor brace assembly (2).

2. The hoisting device for bar transportation according to claim 1, characterized in that: The scissor support assembly (2) comprises a first hoisting arm (4) and a second hoisting arm (5) which are hingedly connected via a first hinge portion (8); the distal end of the first hoisting arm (4) is hingedly connected to one end of the first clamping arm (6) via a third hinge portion (11); the distal end of the second hoisting arm (5) is hingedly connected to one end of the second clamping arm (7) via a fourth hinge portion (12); and the distal ends of the first clamping arm (6) and the second clamping arm (7) are hingedly connected via a second hinge portion (10).

3. The hoisting device for bar transportation according to claim 2, characterized in that: The distal ends of the first clamping arm (6) and the second clamping arm (7) are correspondingly fixedly connected with clamping claws (9), and a clamping portion for clamping a rod is provided on the inner side of the clamping claws (9).

4. The hoisting device for bar transportation according to claim 2, characterized in that: Both ends of the connecting crossbar (16) are fixedly connected to the second hinged portions (10) of the two sets of scissor brace assemblies (2).

5. The hoisting device for bar transportation according to claim 2, characterized in that: The locking mechanism (15) includes a locking link (151), one end of the locking link (151) is hinged to the middle of the first hoisting arm (4) through a locking hinge portion (13), and a through-limiting sliding groove (154) is provided on the side wall of the other end of the locking link (151). The locking link (151) is slidably connected to the locking limiting portion (14) at a corresponding position in the middle of the second hoisting arm (5) through the limiting sliding groove (154), and the length of the limiting sliding groove (154) limits the opening range of the first hoisting arm (4) and the second hoisting arm (5).

6. The hoisting device for bar transportation according to claim 5, characterized in that: A plurality of locking pin holes (155) are provided on one side of the locking link (151) in a direction perpendicular to the limiting sliding groove (154), and the spacing between adjacent locking pin holes (155) is the same.

7. The hoisting device for bar transportation according to claim 6, characterized in that: The locking link (151) and the limiting sliding groove (154) have a widened structure (153) at one end corresponding to the other.

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