A steel plate hoisting device

Abstract

The application relates to a steel plate hoisting device and relates to the technical field of steel plate hoisting, which comprises a frame, telescopic rods one and two slidingly connected to the frame, a gear and a motor arranged on the frame, and a rack one and a rack two fixedly connected to the telescopic rods one and two respectively. The motor drives the gear to rotate, and the gear simultaneously meshes with the rack one and the rack two to drive the telescopic rods one and two to synchronously move towards or away from each other. The end of the telescopic rod is connected with a self-adapting clamping mechanism, and the self-adapting clamping mechanism comprises a clamping jaw driven by a hydraulic cylinder, wherein the clamping jaw is made of rubber and is internally provided with a pressure sensor. The structure of the gear meshing with the double racks realizes synchronous symmetrical adjustment of the clamps on the two sides, the adjustment precision is high, the degree of automation is high, the clamping jaw with the pressure sensor is matched, the clamping process is stable and reliable, and safety is good.

Description

Technical Field

[0001] This application relates to the field of steel plate hoisting technology, and in particular to a steel plate hoisting device. Background Technology

[0002] Steel plates, as a basic industrial material, are widely used in machinery manufacturing, shipbuilding, and construction engineering. During production and transportation, specialized lifting equipment is often required for the safe and efficient handling of steel plates.

[0003] Currently, adjustable-width lifting devices are available on the market for steel plates of different widths. These devices typically use movable clamping arms to accommodate steel plates of different sizes.

[0004] However, in many existing technical solutions, the width adjustment of the two clamping arms mostly relies on manual operation or is controlled by two independent drive mechanisms. Manual adjustment is not only labor-intensive and inefficient, but it is also difficult to ensure the synchronicity of the movement of the two clamping arms, which can easily cause adjustment errors and lead to misalignment between the center of the lifting device and the center of gravity of the steel plate.

[0005] The asynchronous adjustment on both sides directly affects the stability and reliability of the clamping, potentially causing the steel plate to tilt or even slip during hoisting, posing a safety hazard. Furthermore, this non-automated adjustment method cannot meet the requirements of high-efficiency, high-precision operations in modern, intelligent production lines.

[0006] Therefore, this utility model proposes a steel plate hoisting device to overcome the shortcomings of the prior art. Utility Model Content

[0007] The purpose of this application is to provide a steel plate hoisting device, which aims to improve the problem in the prior art where the clamps on both sides move asynchronously during width adjustment, resulting in low automation and safety hazards.

[0008] This utility model provides a steel plate hoisting device, including: a frame, and a telescopic rod one and a telescopic rod two slidably connected to the frame, a rack one fixedly connected to the telescopic rod one, and a rack two fixedly connected to the telescopic rod two; and a motor and a gear driven by the motor installed on the frame.

[0009] The gear is positioned between rack one and rack two, and the teeth of the gear mesh with the teeth of both rack one and rack two.

[0010] Furthermore, the motor is connected to the gear through the output end. The gear, through meshing with rack one and rack two, converts the rotational motion of the motor into synchronous, opposite linear motion of telescopic rod one and telescopic rod two, thereby achieving fast and precise adaptive width adjustment.

[0011] Preferably, the frame has a groove for guiding the first telescopic rod, and a guide rail for guiding the second telescopic rod. The cross-sectional shape of the first telescopic rod matches the inner cavity shape of the groove, forming a sliding fit; the contact surface between the second telescopic rod and the guide rail also forms a sliding fit. This structure can provide precise guidance for the linear movement of the telescopic rod and prevent deflection during the movement.

[0012] Preferably, limit blocks are fixedly connected to both telescopic rod one and telescopic rod two. When the telescopic rod moves to the limit position of its stroke, the limit block can abut against the corresponding end face of the frame, forming a physical hard limit, thereby ensuring the safety of the mechanism's operation.

[0013] Preferably, the adaptive clamping mechanism serves as the actuating component, used to clamp and fix the edge of the steel plate after the width adjustment is completed.

[0014] Preferably, the robotic arm has an integrally formed support plate, and the two support plates are fixedly connected by a connecting shaft to enhance the overall structural strength. A gripper for directly contacting and clamping the steel plate is rotatably connected to the bottom of the robotic arm away from the support plate.

[0015] Preferably, the adaptive clamping mechanism also includes a hydraulic cylinder as a power source. The top of the hydraulic cylinder is rotatably connected to the connecting shaft via a connecting plate one, and the bottom of the hydraulic cylinder push rod is rotatably connected to the gripper via a connecting plate two. By controlling the extension and retraction of the hydraulic cylinder push rod, the gripper can be driven to open or close.

[0016] Preferably, the main body of the gripper is made of a rubber material with a specific hardness. Furthermore, to enable intelligent monitoring of the gripping process, a pressure sensor is installed inside the gripper. This pressure sensor can monitor the magnitude of the gripping force in real time and feed the data back to the control system.

[0017] Preferably, a high-load-bearing lifting ring is fixedly welded to the top of the frame. The lifting ring serves as the lifting connection point for the entire device, ensuring a safe and reliable lifting process.

[0018] In summary, this application includes at least one of the following beneficial technical effects: 1. This utility model solves the problems of asynchronous movement of the clamps on both sides, low adjustment accuracy, and low degree of automation in the existing steel plate hoisting device when adjusting the width by setting a transmission structure in which the gear driven by the motor meshes with the racks fixed on the two telescopic rods respectively. It achieves the technical effect of synchronous and symmetrical movement of the telescopic rods on both sides, quick and accurate adaptation to steel plates of different specifications, and improved work efficiency.

[0019] 2. This utility model solves the problems of traditional clamps, such as difficulty in controlling clamping force, potential damage to the steel plate surface, inability to monitor clamping status in real time, and potential safety hazards, by setting hydraulically driven grippers and installing pressure sensors on the grippers. It achieves the technical effects of stable and controllable clamping force, safe and reliable clamping process, and intelligent monitoring.

[0020] 3. This utility model solves the problems of unstable adjustment caused by swaying and deviation during the movement of the width adjustment mechanism and the possibility of the telescopic rod falling off the frame by setting a sliding groove and guide rail on the frame and setting a limit block to limit the stroke. It achieves the technical effect of ensuring a smooth adjustment process and improving the stability and safety of the structural movement. Attached Figure Description

[0021] Figure 1 This is a three-dimensional schematic diagram of a steel plate hoisting device proposed in this utility model; Figure 2 This is a schematic diagram of the width adjustment mechanism of a steel plate hoisting device proposed in this utility model; Figure 3 This is a schematic diagram of the chute structure of a steel plate hoisting device proposed in this utility model; Figure 4 This is a schematic diagram of the adaptive clamping mechanism of a steel plate hoisting device proposed in this utility model; Explanation of reference numerals in the attached figures: 1. Frame; 2. Lifting ring; 3. Motor; 4. Width adjustment mechanism; 41. Telescopic rod one; 42. Telescopic rod two; 43. Rack one; 44. Rack two; 45. Gear; 46. Slide groove; 47. Guide rail; 48. Limit block; 5. Adaptive clamping mechanism; 51. Robotic arm; 52. Support plate; 53. Connecting shaft; 54. Connecting plate one; 55. Hydraulic cylinder; 56. Push rod; 57. Connecting plate two; 58. Gripper. Detailed Implementation

[0022] Example: Reference Figures 1 to 4This utility model provides a steel plate hoisting device, which aims to solve the problems of asynchronous movement of the clamps on both sides and low adjustment accuracy when adjusting the width of the steel plate hoisting device in the prior art.

[0023] like Figure 1 and Figure 2 As shown, the device includes a frame 1, and telescopic rod 41 and telescopic rod 42 slidably connected to the frame 1. The frame 1 is welded from high-strength alloy steel and serves as the installation and load-bearing platform for the entire device. A lifting ring 2 for connecting lifting equipment is fixedly welded to the top. A rack 43 is fixedly connected to telescopic rod 41, and a rack 44 is fixedly connected to telescopic rod 42. A motor 3 is installed on the frame 1, and a gear 45 is connected to the output end of the motor 3. The gear 45 meshes with both rack 43 and rack 44. The motor 3 drives the gear 45 to rotate, and the rotation of the gear 45 can simultaneously drive the meshing rack 43 and rack 44 to produce linear movements in opposite or opposite directions, thereby causing the telescopic rods 41 and 42 to shorten or increase the distance between them synchronously.

[0024] Motor 3, as the power source of the width adjustment mechanism 4, provides driving force for the entire width adjustment process. The start, stop, and forward / reverse rotation of motor 3 control the movement direction and final position of telescopic rod 1 41 and telescopic rod 2 42. Gear 45, as the core component of the transmission system, is directly driven to rotate by the output end of motor 3. The tooth profile of gear 45 is precisely matched with the tooth profile of rack 1 43 and rack 2 44 to ensure smooth transmission without idle travel. Rack 1 43 and rack 2 44, as the actuators for linear motion, are firmly fixedly connected to telescopic rod 1 41 and telescopic rod 2 42, respectively. The meshing position relationship between the two racks and gear 45 ensures that when gear 45 rotates, the two racks can move linearly at the same speed in opposite directions, thereby realizing the precise synchronous symmetrical adjustment function of telescopic rod 1 41 and telescopic rod 2 42, and ultimately achieving rapid self-adaptation to steel plates of different widths.

[0025] Reference Figure 2 and Figure 3 The frame 1 has a groove 46 for guiding the first telescopic rod 41, and a guide rail 47 for guiding the second telescopic rod 42. The first telescopic rod 41 slides in contact with the inner wall of the groove 46, and the inner side of the second telescopic rod 42 slides in contact with the guide rail 47. This combination of groove 46 and guide rail 47 ensures that when the first telescopic rod 41 and the second telescopic rod 42 are driven by the gear 45, they can only move smoothly along a preset straight path, effectively avoiding deflection or shaking during the movement, thereby improving the accuracy and reliability of width adjustment.

[0026] Limiting blocks 48 are fixedly connected to both telescopic rod 41 and telescopic rod 42. The outer dimensions of the limiting blocks 48 are larger than the outlet cross-section of the slide 46 or the guide rail 47. When telescopic rod 41 or telescopic rod 42 moves to the maximum stroke position, the limiting blocks 48 will interfere with and abut against the corresponding end face of the frame 1, thereby playing a reliable physical limiting role and ensuring the safe operation of the entire adjustment mechanism.

[0027] Reference Figure 1 and Figure 4 The ends of telescopic rod 41 and telescopic rod 42 are respectively connected to adaptive clamping mechanisms 5. The adaptive clamping mechanisms 5 are used to stably clamp the steel plate after the width is adjusted to the correct position. Each set of adaptive clamping mechanisms 5 includes symmetrically arranged robotic arms 51. The robotic arms 51 have protruding support plates 52 integrally formed on them. The two support plates 52 are fixedly connected by a connecting shaft 53. The connecting shaft 53 enhances the structural rigidity between the two robotic arms 51. The bottom of the robotic arm 51 away from the support plate 52 is rotatably connected to a gripper 58.

[0028] Reference Figure 4 The adaptive clamping mechanism 5 also includes a hydraulic cylinder 55, which serves as the power source for the clamping action. Its top is rotatably connected to the connecting shaft 53 via a connecting plate 1 54, enabling the hydraulic cylinder 55 to pivotally mount on the frame 1. The bottom of the push rod 56 of the hydraulic cylinder 55 is rotatably connected to the gripper 58 via a connecting plate 2 57. When the push rod 56 extends, it pushes the gripper 58 to swing inward around its rotation point, thus achieving a clamping action. When the push rod 56 retracts, it causes the gripper 58 to open outward. The main body of the gripper 58 is made of rubber material with a hardness of 70±5 Shore A. Furthermore, to achieve precise monitoring of the clamping force, a pressure sensor is installed inside the gripper 58. The pressure sensor can be a KELI P101B. The pressure sensor (this model is a mature existing technology, and its specific structure and working principle are well known to those skilled in the art, and will not be described in detail here) adopts silicon strain technology and precision temperature compensation process, with excellent sealing and overpressure resistance. It is fully adapted to the real-time monitoring scenario of the clamping force of the jaws on the steel plate in this utility model. It monitors the working pressure of the jaws 58 when clamping the steel plate in real time and feeds the pressure signal back to the control system to realize closed-loop control and ensure the stability and safety of the clamping force.

[0029] Working principle: Before hoisting, motor 3 is started according to the actual width of the steel plate to be hoisted. The output end of motor 3 drives gear 45 to rotate. Since gear 45 meshes with rack 43 fixed on telescopic rod 41 and rack 44 fixed on telescopic rod 42, the rotation of gear 45 will drive rack 43 and rack 44 to move in opposite directions at the same speed. This will cause telescopic rod 41 and telescopic rod 42 to move synchronously and symmetrically towards each other or away from each other. During the movement, telescopic rod 41 slides in the slide groove 46 and telescopic rod 42 slides along the guide rail 47, ensuring smooth and precise movement until the distance between the adaptive clamping mechanisms 5 at both ends matches the width of the steel plate. The limit block 48 ensures that the adjustment stroke will not exceed the safe range.

[0030] After the width adjustment is completed, the device is lowered above the steel plate, and the hydraulic system of the adaptive clamping mechanism 5 is activated. The push rod 56 of the hydraulic cylinder 55 extends and pushes the gripper 58 to swing inward around its pivot point through the connecting plate 2 57, thereby firmly clamping the steel plate. The pressure sensor built into the gripper 58 monitors the clamping force in real time to prevent the clamping force from being too large or too small, ensuring the reliability of the clamping. After confirming that the clamping is stable, the lifting ring 2 can be used in conjunction with the lifting equipment to carry out the overall lifting operation.

Claims

1. A steel plate hoisting device, comprising a frame (1), a width adjustment mechanism (4), and a telescopic rod one (41) and a telescopic rod two (42) slidably connected to the frame (1), wherein a rack one (43) is fixedly connected to the telescopic rod one (41), and a rack two (44) is fixedly connected to the telescopic rod two (42); characterized in that, A motor (3) is installed on the frame (1). The output end of the motor (3) is connected to a gear (45). The gear (45) meshes between the rack one (43) and the rack two (44) at the same time, and is used to drive the telescopic rod one (41) and the telescopic rod two (42) to move synchronously towards or away from each other.

2. The steel plate hoisting device according to claim 1, characterized in that, The frame (1) is provided with a groove (46) for guiding the first telescopic rod (41), and the frame (1) is provided with a guide rail (47) for guiding the second telescopic rod (42). The first telescopic rod (41) slides in conjunction with the groove (46), and the second telescopic rod (42) slides in conjunction with the guide rail (47).

3. The steel plate hoisting device according to claim 1, characterized in that, Limiting blocks (48) are fixedly connected to both the first telescopic rod (41) and the second telescopic rod (42). The limiting blocks (48) are used to provide travel restriction when the first telescopic rod (41) and the second telescopic rod (42) slide, so as to prevent the telescopic rod from coming out of the frame (1).

4. The steel plate hoisting device according to claim 1, characterized in that, Both the end of the first telescopic rod (41) and the end of the second telescopic rod (42) are connected to an adaptive clamping mechanism (5), which is used to clamp the steel plate.

5. The steel plate hoisting device according to claim 4, characterized in that, The adaptive clamping mechanism (5) includes symmetrically arranged robotic arms (51), with a support plate (52) integrally formed on the robotic arm (51). The two support plates (52) are fixedly connected by a connecting shaft (53), and a gripper (58) is rotatably connected to the bottom of the robotic arm (51) away from the support plate (52).

6. The steel plate hoisting device according to claim 5, characterized in that, The adaptive clamping mechanism (5) also includes a hydraulic cylinder (55), the top of which is rotatably connected to the connecting shaft (53) via a connecting plate (54), and the bottom of the push rod (56) of the hydraulic cylinder (55) is rotatably connected to the gripper (58) via a connecting plate (57) to drive the gripper (58) to open or close.

7. The steel plate hoisting device according to claim 5, characterized in that, The main body of the gripper (58) is made of rubber material, and a pressure sensor is also provided inside the gripper (58). The pressure sensor is used to monitor the working pressure of the gripper (58) when it is clamping the steel plate in real time.

8. The steel plate hoisting device according to claim 1, characterized in that, The top of the frame (1) is fixedly welded with a lifting ring (2) for connecting to the lifting equipment.

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