A lifting device for bulk transfer

Abstract

This application provides a lifting device for batch transfer, belonging to the technical field of lifting equipment. The lifting device is connected to the bottom of the steel cable hook of a gantry crane and includes: a connecting assembly; a clamping assembly, with multiple clamping assemblies arranged in an array along the length of the connecting assembly, the clamping assembly including a mounting base with a U-shaped cross-section, a gear rotatably mounted on the upper wall of the horizontal part of the bottom surface of the mounting base, racks meshing on both sides of the gear, one side of each rack slidingly connected to the inner walls of both sides of the mounting base, and an L-shaped vertical rod extending vertically downwards from the ends of the two racks that are far apart from each other after extending out of the mounting base, the horizontal parts of the vertical rods being arranged opposite each other, and a connecting seat extending downwards from the lower end of the horizontal part of the vertical rods, the lower end of the connecting seat having a circular hole, and a support rod passing through the circular hole; a bracket assembly including a bracket, with arc-shaped seats with downward openings at both ends of the bracket; the solution provided in this application can be used for batch transfer of quenched steel to improve work efficiency.

Description

Technical Field

[0001] This utility model belongs to the field of hoisting equipment technology, and in particular relates to a hoisting tool for batch transfer. Background Technology

[0002] Heat treatment of steel surfaces can improve their mechanical properties. Steel that has undergone surface heat treatment can be used for components such as gears and shafts that require a balance between surface strength and core toughness. Common heat treatment processes include surface hardening and carburizing.

[0003] The surface hardening process requires first placing the steel in a heating furnace for normalizing. After normalizing, the surface of the steel is rapidly heated to the austenitizing temperature, ensuring that the heat is not significantly transferred to the core of the steel. Finally, the steel is placed in a cooling pool for quenching. After quenching, it is placed in a low-temperature furnace for low-temperature tempering to eliminate its internal stress and retain its surface strength.

[0004] During this process, when steel that has been rapidly heated to its austenitizing temperature is placed into the cooling tank, it is impossible to transfer it in batches. To overcome this problem, workers stack multiple steel pieces on a support frame and set spacers between adjacent steel pieces to ensure that the surface of each steel piece is heated evenly. During quenching, hooks are used to hold the two ends of the support frame, and then hoisting equipment is used to lift the support frame carrying the steel pieces into the cooling tank for quenching. Although the efficiency has been improved, it is still not high, so improvements are needed. Utility Model Content

[0005] To address the shortcomings of the existing technology, this utility model provides a lifting tool for batch transfer, which can be used to transfer quenched steel in batches to improve work efficiency.

[0006] A bulk transfer lifting device, connected below the steel cable hook of a gantry crane, includes:

[0007] Connection components;

[0008] The clamping assembly includes multiple clamping components arranged in an array along the length of the connecting assembly. The clamping assembly includes a mounting base with a U-shaped cross-section. A gear is rotatably mounted on the upper wall of the horizontal part of the bottom surface of the mounting base. A rack is meshed on both sides of the gear. One side of the rack is slidably connected to the inner walls of both sides of the mounting base. An L-shaped vertical rod is provided vertically downward after the ends of the two racks extend out of the mounting base. The horizontal parts of the vertical rod are arranged opposite each other, and a connecting seat is provided at the lower end of the horizontal part of the vertical rod. A circular hole is provided at the lower end of the connecting seat, and a support rod passes through the circular hole.

[0009] A bracket assembly includes a bracket, with downward-facing arc-shaped seats at both ends of the bracket;

[0010] The distance from the axis of the support rod to the lower end of the connecting seat is less than the distance from the arc-shaped seat to the bottom of the bracket.

[0011] Furthermore, one side of the rack is provided with a slide bar, and the inner walls on both sides of the mounting base are respectively provided with symmetrical slide grooves, and the slide bar is slidably connected to the slide grooves.

[0012] Furthermore, the mounting base has a weight-reducing groove recessed on both the upper and lower sides, and the weight-reducing groove has a U-shaped structure with the opening facing outward.

[0013] Furthermore, a limiting plate is provided at the end of the rack away from the vertical rod, and the limiting plate is located on the side of the rack facing the direction of the gear.

[0014] Furthermore, the lower end of the connector is provided with a threaded hole with a connecting round hole, and a locking bolt is connected to the threaded hole.

[0015] Furthermore, the connection between the upper end of the vertical rod and the rack is secured with connecting bolts.

[0016] Furthermore, the connecting assembly includes two parallel and spaced-apart crossbeams, with mounting bases arranged in an array along the length of the crossbeams. The top ends of the mounting bases are connected to the crossbeams, and connecting beams are spaced apart on the top surfaces of the two crossbeams. The length of the connecting beams is parallel to the length of the mounting bases, and a hanger is provided at the middle of the upper end of the connecting beams.

[0017] In order to achieve the purpose of this utility model, the following solution is proposed:

[0018] The beneficial effects of this utility model are as follows:

[0019] A support rod is inserted through the lower end of the vertical rod on the same side of the mounting base. The support rod area between two adjacent vertical rods is used to support the bracket, so that multiple brackets can be supported at one time, so as to realize the large-scale transfer of steel and thus improve work efficiency. Attached Figure Description

[0020] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0021] Figure 1 A schematic diagram of the overall structure of this application is shown.

[0022] Figure 2 This application shows Figure 1 Orthographic projection view along the length of the mounting base.

[0023] Figure 3 A schematic diagram of the clamping part of this application is shown.

[0024] Figure 4 A schematic diagram of the mounting base structure of this application is shown.

[0025] Figure 5A schematic diagram of the gear and rack connection structure of this application is shown.

[0026] Figure 6 This application shows Figure 1 A magnified view of part A in the diagram.

[0027] Figure 7 This application shows Figure 2 A magnified view of part B in the diagram.

[0028] The markings in the diagram are: connecting component-10, crossbeam-11, connecting beam-12, hanger-13, clamping component-20, mounting base-21, slide groove-211, weight reduction groove-212, gear-22, rack-23, slide bar-231, limit plate-232, vertical rod-24, connecting base-25, round hole-251, locking bolt-252, support rod-26, connecting bolt-27, bracket assembly-30, bracket-31, and arc-shaped seat-32. Detailed Implementation

[0029] To make the objectives, technical solutions and advantages of the present utility model clearer, the implementation methods of the present utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in the present utility model are only some embodiments of the present utility model, and not all embodiments.

[0030] like Figures 1-7 As shown, this embodiment provides a lifting device for batch transfer, including a connecting component 10, a clamping component 20, and a bracket component 30. The connecting component 10 is connected to the lower part of the gantry crane's steel cable hook. Multiple clamping components 20 are arranged in an array along the length direction of the connecting component 10. Multiple bracket components 30 are arranged sequentially at intervals along the lower end of the distribution direction of the clamping components 20, and each bracket component 30 is hung between two clamping components 20.

[0031] Specifically, such as Figure 1 As shown, the connecting assembly 10 includes a crossbeam 11, a connecting beam 12, and a lifting seat 13. There are two crossbeams 11, which are arranged parallel to each other and spaced apart above the clamping assembly 20. There are two connecting beams 12, which are parallel to each other and spaced apart. The length direction of the connecting beam 12 is perpendicular to the length direction of the crossbeam 11. The bottom ends of the connecting beam 12 are respectively connected to the top surface of the crossbeam 11. There is one lifting seat 13 corresponding to the short axis of the connecting beam 12, which is used to connect to the bottom of the gantry crane steel rope hook to facilitate the movement of the lifting device.

[0032] like Figures 2-5As shown, the clamping components 20 are arranged in an array along the length of the crossbeam 11. In this embodiment, four are arranged in an array as an example, used to clamp the two ends of the bracket assembly 30 to realize the transfer of steel after surface heat treatment. The clamping components 20 include a mounting base 21, a gear 22, a rack 23, a vertical rod 24, a connecting base 25, a support rod 26, and a connecting bolt 27. The cross-section of the mounting base 21 is U-shaped, and the two ends of its top surface in the length direction are respectively connected to the bottom of the crossbeam 11. The inner walls of the vertical parts on both sides of the mounting base 21 are symmetrically provided with grooves 211. The two ends of the upper and lower horizontal parts of the mounting base 21 are respectively provided with weight-reducing grooves 212. The weight-reducing grooves 212 are U-shaped, and their openings face the two ends of the mounting base 21.

[0033] Gear 22 is rotatably mounted inside mounting base 21, and the axis of gear 22 is perpendicular to the midpoint of the short axis of mounting base 21. A rotating shaft is coaxially mounted inside gear 22. The lower end of the rotating shaft is rotatably connected to the bottom horizontal part of mounting base 21. The upper end of the rotating shaft passes through the top horizontal part of mounting base 21 and is equipped with a rotary motor for driving gear 22 to rotate.

[0034] The rack 23 is movable along the length of the mounting base 21. Two racks 23 are provided in a rotationally symmetrical manner and mesh with the gear 22 on both sides respectively. One end of the rack 23 extends out of the mounting base 21. A slide 231 is provided on the side of the rack 23 away from the gear 22. The cross-section of the slide 231 is an inverted T-shaped structure. The horizontal part is connected to the side of the rack 23 away from the gear 22, and the vertical part is slidably connected to the slide groove 211. A limiting plate 232 protruding towards the gear 21 is provided at the connection between one end of the slide 231 and the other end of the rack 23. The other end of the slide 231 extends out of the rack 23 by a certain length.

[0035] The vertical rod 24 has an L-shaped structure. The vertical rod 24 is vertically downward at one end of the rack 23 that extends out of the mounting base 21. The upper end of the vertical part of the vertical rod 24 is locked to the end of the slide bar 231 that extends out of the rack 23 by four connecting bolts 27. The horizontal parts of the vertical rods 24 at both ends of the same mounting base 21 are arranged opposite each other. The connecting base 25 is vertically arranged along the bottom surface of the outer end of the horizontal part of the vertical rod 24. The lower end of the connecting base 25 has a through hole 251, and a locking bolt 252 is inserted through one side of the hole 251.

[0036] Two support rods 26 are provided corresponding to the length direction of the crossbeam 11, and the support rods 26 pass through the round hole 251. The locking bolt 252 is used to lock the support rods 26 to increase the friction between the support rods 26 and the inner wall of the round hole 251.

[0037] Specifically, such as Figures 1-2 , Figure 6As shown, the bracket assembly 30 is arranged in an array along the axial direction of the support rod 26. In this embodiment, three sets of bracket assemblies 30 are used as an example. The bracket assembly 30 includes a bracket 31 and an arc-shaped seat 32. The bracket 31 is located between the two support rods 26. An arc-shaped seat 32 is provided at each end of the bracket 31. The opening of the arc-shaped seat 32 faces downward and is used to hook with the corresponding support rod 26.

[0038] like Figure 7 As shown, the distance from the axis of the support rod 26 to the lower end of the connecting seat 25 is less than the distance from the axis of the arc seat 32 to the bottom of the bracket 31, so as to avoid interference at the lower end of the connecting seat 25 when the bracket 31 is placed on the ground.

[0039] The specific usage process is as follows:

[0040] After removing the bracket 31 and the steel stacked on the bracket 31 from the heat treatment furnace, connect the hook to the lifting seat 13. After the connection is secure, start the gantry crane and move the lifting device to the location of the bracket 31. When the lifting device moves directly above the bracket 31, the steel rope of the gantry crane moves vertically downward so that the support rod 26 moves to the outer sides of both ends of the bracket 31.

[0041] Start the motor to drive the gear 22 to rotate, thereby causing the racks 23 on both sides to move relative to each other, so that the support rod 26 moves directly below the arc-shaped seat 32. At this time, start the steel cable of the gantry crane to retract the steel cable upward, so that the support rod 26 bracket 31 corresponds to one end of the arc-shaped seat 32, thereby simultaneously lifting multiple brackets 31 containing steel.

[0042] Finally, the gantry crane is started to move the lifting device above the quenching tank. Then the gantry crane is paused and the steel rope is started vertically downward, so that multiple trays 31 carrying steel materials enter the quenching tank, thereby realizing the batch quenching of steel materials and greatly improving work efficiency.

[0043] The above description is merely a preferred embodiment of this utility model and does not imply its uniqueness or limitation. Those skilled in the art should understand that various changes or equivalent substitutions made to this utility model without departing from its scope are all within the protection scope of this utility model.

Claims

1. A lifting device for bulk transfer, connected below the steel cable hook of a gantry crane, characterized in that, include: Connection component (10) for connecting the gantry crane cable hook; The clamping assembly (20) is arranged in a series along the length of the connecting assembly (10), including a mounting base (21) with a cross-section in the shape of a U-shape. A gear (22) is rotatably provided on the upper wall of the horizontal part of the bottom surface. A rack (23) meshes with both sides of the gear (22). One side of the rack (23) is slidably connected to the inner walls of both sides of the mounting base (21). The ends of the two racks (23) that are far apart from each other extend out of the mounting base (21) and are vertically downward provided with an L-shaped vertical rod (24). The horizontal parts of the vertical rod (24) are arranged opposite each other, and the lower end of the horizontal part of the vertical rod (24) extends downward to provide a connecting seat (25). The lower end of the connecting seat (25) is provided with a round hole (251), and a support rod (26) passes through the round hole (251). The bracket assembly (30) includes a bracket (31) with downward-facing arc-shaped seats (32) at both ends. Among them, the distance from the axis of the support rod (26) to the lower end of the connecting seat (25) is less than the distance from the arc seat (32) to the bottom of the bracket (31).

2. The spreader of claim 1, wherein, A slide bar (231) is provided on one side of the rack (23), and slide grooves (211) are symmetrically provided on the inner walls of both sides of the mounting base (21). The slide bar (231) is slidably connected to the slide grooves (211).

3. The bulk transfer spreader of claim 1, wherein, The mounting base (21) has a weight reduction groove (212) recessed on both the upper and lower sides. The weight reduction groove (212) has a U-shaped structure with the opening facing outward.

4. The bulk transfer spreader of claim 1, wherein, A limiting plate (232) is provided at the end of the rack (23) away from the vertical rod (24). The limiting plate (232) is located on the side of the rack (23) facing the direction of the gear (22).

5. The bulk transfer spreader of claim 1, wherein, The lower end of the connecting seat (25) is provided with a threaded hole with a connecting round hole (251), and a locking bolt (252) is connected to the threaded hole.

6. The bulk transfer spreader of claim 1, wherein, The upper end of the vertical rod (24) is locked to the rack (23) by a connecting bolt (27).

7. The bulk transfer spreader of claim 1, wherein, The connecting assembly (10) includes two parallel and spaced crossbeams (11), and mounting bases (21) are arranged in an array along the length direction of the crossbeams (11). The top ends of the mounting bases (21) are connected to the crossbeams (11). The top surfaces of the two crossbeams (11) are provided with connecting beams (12) spaced apart. The length direction of the connecting beams (12) is parallel to the length direction of the mounting bases (21). The upper middle part of the connecting beams (12) is provided with a hanging seat (13), which is used to connect the gantry crane steel rope hook.

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