A lifting device for an ingot rod

Abstract

The utility model discloses a kind of hoisting devices suitable for dummy bar, it is related to crane lifting sling technical field. Including rack and be set on the adjusting mechanism of rack, clamping mechanism, adjusting mechanism includes double-end screw, first screw seat, second screw seat and driving motor, one end of double-end screw is transmission connection in the power output end of driving motor, the other end is rotationally mounted on the inner wall of rack along its axis direction, and along first direction, first screw seat and second screw seat are all with double-end screw thread connection, the thread rotation direction of first screw seat and second screw seat is opposite, clamping mechanism includes first clamping component and second clamping component being symmetrically set on rack, first clamping component is fixedly connected on first screw seat, second clamping component is fixedly connected on second screw seat. The utility model can be controlled first clamping component and second clamping component slowly tighten by driving motor, gradually hold dummy bar, realize the quick positioning of dummy bar, hoist and carry speed is improved.

Description

Technical Field

[0001] This utility model relates to the field of crane lifting and hoisting equipment technology, specifically a hoisting device suitable for a derrick rod. Background Technology

[0002] In the continuous casting process of steel billet production, dummy bars are needed to guide and support the initially solidified steel billet to ensure the smooth operation of the continuous casting process. Typically, to produce various types of steel billets, continuous casting machines frequently require the replacement of dummy bars with different cross-sections. Due to the heavy weight and long shape of the dummy bars, replacement often requires on-site personnel to use lifting equipment to hoist them. This not only increases the labor intensity of workers but also poses a safety hazard as the dummy bars are prone to detachment during hoisting. Utility Model Content

[0003] The purpose of this utility model is to provide a hoisting device suitable for derrick rods, so as to solve the technical problems in the background art mentioned above.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a hoisting device suitable for a lead screw rod, comprising a frame and an adjustment mechanism and a clamping mechanism mounted on the frame. The adjustment mechanism includes a double-ended lead screw, a first lead screw seat, a second lead screw seat, and a drive motor. One end of the double-ended lead screw is connected to the power output end of the drive motor, and the other end is rotatably mounted on the inner wall of the frame along a first direction. A helical line is formed on the outer circumference of the double-ended lead screw along the first direction. Both the first and second lead screw seats are threadedly connected to the double-ended lead screw. Furthermore, the threads of the first and second lead screw seats... The rotation directions are opposite; the first direction is the direction of the double-ended lead screw's own axis. The clamping mechanism includes a first clamping component and a second clamping component symmetrically arranged on the frame. The first clamping component is fixed to the first lead screw seat, and the second clamping component is fixed to the second lead screw seat. The drive motor can drive the first clamping component and the second clamping component to move closer to each other or further away from each other through the double-ended lead screw, the first lead screw seat, and the second lead screw seat. When the first clamping component and the second clamping component move closer to each other, they can cooperate to clamp the guide rod. When the first clamping component and the second clamping component move further away from each other, the clamped guide rod can be released.

[0005] Based on the above technical features, the hoisting device can control the first and second clamping components to slowly tighten and gradually grip the guide rod through the drive motor, thereby achieving rapid positioning of the guide rod, improving hoisting speed, and reducing labor and time costs. It is especially suitable for work scenarios where the guide rod needs to be frequently replaced.

[0006] Preferably, in this technical solution, the frame includes a load-bearing crossbeam and lifting lugs. The load-bearing crossbeam is a rectangular frame welded from steel plates. The adjustment mechanism and clamping mechanism are disposed on the load-bearing crossbeam. The lifting lugs are fixed to the load-bearing crossbeam and are arranged along a second direction perpendicular to the first direction. The lifting lugs and clamping mechanism are disposed on the upper and lower sides of the load-bearing crossbeam.

[0007] Based on the above technical features, the load-bearing crossbeam is made of steel plates welded into a rectangular frame and serves as the main load-bearing structure. At the same time, the double lifting lug design ensures the force balance on the front and rear sides of the load-bearing crossbeam, effectively suppressing the tilting problem during the hoisting process.

[0008] In this technical solution, preferably, the frame also includes a counterweight. Along the first direction, the drive motor and the counterweight are respectively disposed on the left and right sides of the load-bearing crossbeam, and the counterweight is used to maintain the balance of the frame.

[0009] Based on the above technical features, the weight of the drive motor on the load-bearing beam is offset by the counterweight, which takes into account the mechanical balance on both sides of the load-bearing beam and ensures the stability of the lifting process of the traction rod.

[0010] Preferably, in this technical solution, the load-bearing crossbeam is provided with a slide rail extending along a first direction. The first clamping assembly includes a first slider and a first gripper, and the second clamping assembly includes a second slider and a second gripper. The first slider and the second slider are both slidably connected to the slide rail. The top of the first slider is fixedly connected to a first lead screw seat, and the bottom of the first slider is fixedly connected to the first gripper. The top of the second slider is fixedly connected to a second lead screw seat, and the bottom of the second slider is fixedly connected to the second gripper.

[0011] Based on the above technical features, the double-ended lead screw converts rotary motion into linear motion. At the same time, with the guiding effect of the slide rail, it ensures that the gripper accurately and stably clamps the spindle rod along the first direction, thus achieving the positioning accuracy between the gripper and the spindle rod.

[0012] Preferably, in this technical solution, the first gripper is provided with a first positioning pin, and the second gripper is provided with a second positioning pin that is opposite to the first positioning pin. When the first clamping component and the second clamping component approach each other, the first positioning pin and the second positioning pin can be inserted into the positioning holes on both sides of the guide rod, respectively.

[0013] Preferably, in this technical solution, the load-bearing crossbeam is provided with two slide rails extending in a third direction. The two slide rails extend in a first direction and are fixedly installed on the front and rear sides of the load-bearing crossbeam respectively. The double-ended screw is located between the two slide rails, and the third direction is perpendicular to the first and second directions.

[0014] In this technical solution, preferably, when the first clamping component and the second clamping component approach each other and cooperate to hold the guide rod, the first slider and the second slider can be locked onto the slide rail by a number of positioning bolts.

[0015] In this technical solution, preferably, the first gripper is welded to the first slider, the second gripper is welded to the second slider, a rib is fixedly connected between the first gripper and the first slider, and a rib is fixedly connected between the second gripper and the second slider. The rib is used to improve the connection strength between the gripper and the slider.

[0016] In this technical solution, preferably, the lifting lug is fixed to the load-bearing crossbeam by multiple bolts and nuts. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the hoisting device in an embodiment of the present invention;

[0018] Figure 2 This is a plan view of the hoisting device in an embodiment of this utility model;

[0019] Figure 3 This is a schematic diagram of the structure of the first slider or the second slider in an embodiment of this utility model.

[0020] In the diagram: 1. Frame; 11. Load-bearing crossbeam; 12. Lifting lug; 13. Counterweight; 14. Slide rail; 2. Adjustment mechanism; 21. Double-ended lead screw; 22. First lead screw seat; 23. Second lead screw seat; 24. Drive motor; 3. Clamping mechanism; 31. First clamping assembly; 31A. First slider; 31B. First gripper; 31C. First positioning pin; 32. Second clamping assembly; 32A. Second slider; 32B. Second gripper; 32C. Second positioning pin; 4. Dip rod; 5. Positioning bolt; 6. Bolt and nut; 7. Rib plate. Detailed Implementation

[0021] 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.

[0022] It should be noted that in the description of this utility model, the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0023] Furthermore, it should be understood that, for ease of description, the dimensions of the various components shown in the accompanying drawings are not drawn to actual scale.

[0024] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined or described in one figure, it will not need to be discussed or described in detail in the description of the subsequent figures.

[0025] like Figures 1 to 3 As shown, this utility model provides a technical solution: a hoisting device suitable for a derrick rod, the hoisting device including a frame 1 and an adjustment mechanism 2 and a clamping mechanism 3 disposed on the frame 1.

[0026] The adjustment mechanism 2 includes a double-ended lead screw 21, a first lead screw seat 22, a second lead screw seat 23, and a drive motor 24. One end of the double-ended lead screw 21 is connected to the power output end of the drive motor 24, and the other end is rotatably mounted on the inner wall of the frame 1 along a first direction. A helix is ​​formed on the outer circumference of the double-ended lead screw 21 along the first direction. The first lead screw seat 22 and the second lead screw seat 23 are both threadedly connected to the double-ended lead screw 21. The threads of the first lead screw seat 22 and the second lead screw seat 23 are opposite in direction. The first direction is the direction of the axis of the double-ended lead screw 21 itself.

[0027] The clamping mechanism 3 includes a first clamping component 31 and a second clamping component 32 symmetrically arranged on the frame 1. The first clamping component 31 is fixed to the first lead screw seat 22, and the second clamping component 32 is fixed to the second lead screw seat 23. The drive motor 24 can drive the first clamping component 31 and the second clamping component 32 to move closer to each other or further away from each other through the double-ended lead screw 21, the first lead screw seat 22 and the second lead screw seat 23.

[0028] Specifically, the hoisting device controls the rotation of the double-ended lead screw 21 via a drive motor 24, thereby controlling the first clamping assembly 31 and the second clamping assembly 32 to move closer or further apart. When the drive motor 24 controls the first clamping assembly 31 and the second clamping assembly 32 to move closer together, they can grip the guide rod 4; when the drive motor controls the first clamping assembly 31 and the second clamping assembly 32 to move further apart, the gripped guide rod 4 can be released. This invention is applicable to guide rods 4 with different cross-sections, enabling rapid positioning of the guide rod 4, improving hoisting speed, and reducing labor and time costs. It is particularly suitable for work scenarios where the guide rod 4 is frequently replaced.

[0029] like Figure 1 and Figure 2 As shown, the frame 1 includes a load-bearing crossbeam 11, lifting lugs 12, counterweights 13, and slide rails 14. Specifically: the load-bearing crossbeam 11 is a rectangular hollow frame welded from steel plates. An adjusting mechanism 2 and a clamping mechanism 3 are mounted on the load-bearing crossbeam 11. The lifting lugs 12 are fixed to the load-bearing crossbeam 11 and, along a second direction perpendicular to the first direction, are located on the upper and lower sides of the load-bearing crossbeam 11. Along the first direction, a drive motor 24 and a counterweight 13 are respectively located on the left and right sides of the load-bearing crossbeam 11. The counterweight 13 is used to offset the weight of the drive motor 24 on the load-bearing crossbeam 11, thereby ensuring the balance of the frame 1 during lifting. The load-bearing crossbeam 11 is provided with two slide rails 14 extending in the third direction. The two slide rails 14 extend in the first direction and are fixedly installed on the front and rear sides of the load-bearing crossbeam 11 respectively. The double-ended screw 21 is located between the two slide rails 14. Preferably, one end of the double-ended screw 21 is connected to the drive motor 24 for transmission, and the other end is rotatably installed on the inner wall of the load-bearing crossbeam 11. The third direction is perpendicular to the first direction and the second direction.

[0030] Specifically, the load-bearing crossbeam 11 is made of steel plates welded end to end into a rectangle, serving as the main load-bearing structure of the frame 1. It is sturdy and durable, with a designed static load capacity of not less than 10 tons, ensuring stability and reliability under high-intensity operating conditions. There are two lifting lugs 12, which are respectively fixed to the front and rear sides of the load-bearing crossbeam 11. The two lifting lugs 12 are fixed to the load-bearing crossbeam 11 by multiple bolts and nuts 6. Preferably, the two lifting lugs are fixed to the load-bearing crossbeam 11 by only two bolts and nuts 6. The end of the lifting lug 12 furthest from the load-bearing crossbeam forms a hook for hooking the lifting equipment. This double-lug design ensures the force balance on the front and rear sides of the load-bearing crossbeam 11, effectively suppressing tilting during the lifting process.

[0031] like Figure 1 and Figure 2As shown, the first clamping assembly 31 includes a first slider 31A and a first gripper 31B, and the second clamping assembly 32 includes a second slider 32A and a second gripper 32B. Both the first slider 31A and the second slider 32A are slidably connected to the slide rail 14. The top of the first slider 31A is fixedly connected to the first lead screw seat 22, and the bottom of the first slider 31A is fixedly connected to the first gripper 31B. The top of the second slider 32A is fixedly connected to the second lead screw seat 23, and the bottom of the second slider 32A is fixedly connected to the second gripper 32B.

[0032] Specifically, in this embodiment of the invention, the first gripper 31B is welded to the first slider 31A, and the second gripper 32B is welded to the second slider 32A. A reinforcing plate 7 is fixedly connected between the first gripper 31B and the first slider 31A, and a reinforcing plate 7 is also fixedly connected between the second gripper 32B and the second slider 32A. The reinforcing plate 7 is used to enhance the connection strength between the gripper and the slider. Preferably, both the first gripper 31B and the second gripper 32B are cast from heat-resistant steel, possessing excellent wear resistance and high-temperature resistance, enabling precise and secure clamping of the guide rod 4, ensuring the safety and stability of the lifting process.

[0033] In this invention, the drive motor 24 drives the double-ended lead screw 21 to rotate. The first clamping component 31 and the second clamping component 32 on the double-ended lead screw 21 gradually slide closer or further away, converting the rotational motion into linear motion. At the same time, with the guiding effect of the slide rail 14, the gripper accurately and stably clamps the guide rod 4 along the first direction, thus achieving the positioning accuracy between the gripper and the guide rod 4.

[0034] like Figure 1 and Figure 2 As shown, the first gripper 31B is provided with a first positioning pin 31C, and the second gripper 32B is provided with a second positioning pin 32C opposite to the first positioning pin 31C. When the first clamping assembly 31 and the second clamping assembly 32B approach each other, the first positioning pin 31C and the second positioning pin 32C can be inserted into the positioning holes on both sides of the guide rod 4, respectively. The grippers adopt a two-point clamping adaptive design, which can automatically compensate for the slight deviation of the guide rod 4, ensure uniform force on the clamping surface, and realize rapid positioning of the guide rod 4.

[0035] like Figures 1 to 3 As shown, when the first clamping assembly 31 and the second clamping assembly 32 approach each other and clamp the guide rod 4, the first slider 31A and the second slider 32A can be locked onto the slide rail 14 by a number of positioning bolts 5.

[0036] Although embodiments of the present invention have been shown and described, 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 hoisting device suitable for a derrick rod, characterized in that, Includes a frame (1) and an adjustment mechanism (2) and a clamping mechanism (3) mounted on the frame (1); wherein: The adjustment mechanism (2) includes a double-ended lead screw (21), a first lead screw seat (22), a second lead screw seat (23), and a drive motor (24). One end of the double-ended lead screw (21) is connected to the power output end of the drive motor (24), and the other end is rotatably mounted on the inner wall of the frame (1) along a first direction. A helix is ​​formed on the outer circumference of the double-ended lead screw (21) along the first direction. The first lead screw seat (22) and the second lead screw seat (23) are both threadedly connected to the double-ended lead screw (21), and the threads of the first lead screw seat (22) and the second lead screw seat (23) are opposite in direction. The first direction is the direction of the axis of the double-ended lead screw (21). The clamping mechanism (3) includes a first clamping component (31) and a second clamping component (32) symmetrically arranged on the frame (1). The first clamping component (31) is fixed to the first lead screw seat (22), and the second clamping component (32) is fixed to the second lead screw seat (23). The drive motor (24) can drive the first clamping component (31) and the second clamping component (32) to move closer or further away from each other through the double-headed lead screw (21), the first lead screw seat (22), and the second lead screw seat (23). When the first clamping component (31) and the second clamping component (32) move closer to each other, they can cooperate to clamp the guide rod (4). When the first clamping component (31) and the second clamping component (32) move further away from each other, the clamped guide rod (4) can be released.

2. The hoisting device according to claim 1, characterized in that, The frame (1) includes a load-bearing crossbeam (11) and lifting lugs (12); wherein, The load-bearing crossbeam (11) is a rectangular frame welded from steel plates. The adjustment mechanism (2) and the clamping mechanism (3) are set on the load-bearing crossbeam (11). The lifting lug (12) is fixed on the load-bearing crossbeam (11) and along a second direction perpendicular to the first direction. The lifting lug (12) and the clamping mechanism (3) are set on the upper and lower sides of the load-bearing crossbeam (11).

3. The hoisting device according to claim 2, characterized in that, The frame (1) also includes a counterweight (13). Along the first direction, the drive motor (24) and the counterweight (13) are respectively arranged on the left and right sides of the load-bearing crossbeam (11). The counterweight (13) is used to maintain the balance of the frame (1).

4. The hoisting device according to claim 2, characterized in that, The load-bearing crossbeam (11) is provided with a slide rail (14) extending along a first direction. The first clamping assembly (31) includes a first slider (31A) and a first gripper (31B). The second clamping assembly (32) includes a second slider (32A) and a second gripper (32B). The first slider (31A) and the second slider (32A) are both slidably connected to the slide rail (14); the top of the first slider (31A) is fixedly connected to the first lead screw seat (22), and the bottom of the first slider (31A) is fixedly connected to the first gripper (31B); the top of the second slider (32A) is fixedly connected to the second lead screw seat (23), and the bottom of the second slider (32A) is fixedly connected to the second gripper (32B).

5. The hoisting device according to claim 4, characterized in that, The first gripper (31B) is provided with a first positioning pin (31C), and the second gripper (32B) is provided with a second positioning pin (32C) that is opposite to the first positioning pin (31C). When the first clamping assembly (31) and the second clamping assembly (32) approach each other, the first positioning pin (31C) and the second positioning pin (32C) can be inserted into the positioning holes on both sides of the guide rod (4).

6. The hoisting device according to claim 4, characterized in that, The load-bearing crossbeam (11) is provided with two slide rails (14) extending in a third direction. The two slide rails (14) extend in a first direction and are fixedly installed on the front and rear sides of the load-bearing crossbeam (11) respectively. The double-headed screw (21) is located between the two slide rails (14). The third direction is perpendicular to the first direction and the second direction.

7. The hoisting device according to claim 6, characterized in that, When the first clamping assembly (31) and the second clamping assembly (32) come close to each other and clamp the guide rod (4), the first slider (31A) and the second slider (32A) can be locked on the slide rail (14) by a number of positioning bolts (5).

8. The hoisting device according to claim 4, characterized in that, The first gripper (31B) is welded to the first slider (31A), and the second gripper (32B) is welded to the second slider (32A). A rib plate (7) is fixedly connected between the first gripper (31B) and the first slider (31A), and a rib plate (7) is fixedly connected between the second gripper (32B) and the second slider (32A). The rib plate (7) is used to improve the connection strength between the gripper and the slider.

9. The hoisting device according to claim 2, characterized in that, The lifting lug (12) is fixed to the load-bearing crossbeam (11) by multiple bolts and nuts (6).

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