An auxiliary hoisting device for flow meter testing

Abstract

This utility model discloses an auxiliary hoisting device for flow meter testing, including a frame, a rotating platform at the top of the frame, driven by a drive motor to achieve horizontal rotation, one end of a horizontally positioned support arm fixedly connected to the rotating platform, and the other end of the support arm connected to a hoisting mechanism; the hoisting mechanism includes a first cylinder fixedly connected to the support arm, the first cylinder being connected to a cylinder output end, the lower end of the cylinder output end being rigidly connected to a horizontal connecting plate, and a clamping mechanism on the lower side of the horizontal connecting plate; the first cylinder drives the cylinder output end to move vertically up and down; the clamping mechanism includes a square frame fixedly connected to the horizontal connecting plate, with second cylinders arranged vertically around the four sides of the square frame, the piston rods of the second cylinders extending from the four sides of the square frame and connected at their ends to a movable connecting plate, with grippers on the lower side of the movable connecting plate. This auxiliary hoisting device has high-precision positioning, multi-degree-of-freedom adjustment, and adaptive clamping functions.

Description

Technical Field

[0001] This utility model belongs to the field of flow meter testing technology, and specifically relates to an auxiliary hoisting device for flow meter testing. Background Technology

[0002] Flow meters are widely used in industrial production, and their accuracy needs to be tested and calibrated regularly. In existing technologies, the testing process for flow meters typically relies on manual hoisting or simple mechanical devices, which presents the following problems: low positioning accuracy: manual operation easily leads to installation deviations of the flow meter, affecting the test results; poor adaptability.

[0003] Chinese utility model patent CN207313059U discloses a flow meter hoisting device, which includes a bracket, a lifting device, a lifting assembly, and a movable component. The lifting device is mounted on the bracket; the lifting assembly is located at the lifting end of the lifting device and is used to hoist the flow meter components; the movable component is located at the bottom of the bracket and is used to move the bracket. This flow meter hoisting device can easily hoist heavy components such as large end caps, upper distribution boxes, and valves, solving the problem of high labor intensity for employees when disassembling flow meters or valves, effectively reducing labor intensity, eliminating safety hazards, and ensuring the accuracy of measurement data. However, this hoisting device is difficult to adapt to flow meters of different sizes and shapes; frequent adjustments to position and angle are required during the testing process, which is time-consuming and inefficient. Therefore, there is an urgent need for an auxiliary hoisting device with high-precision positioning, multi-degree-of-freedom adjustment, and adaptive clamping functions. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides an auxiliary hoisting device for flow meter testing, which has high-precision positioning, multi-degree-of-freedom adjustment and adaptive clamping functions.

[0005] The technical solution adopted by this utility model is as follows: An auxiliary hoisting device for flow meter detection includes a frame for supporting the overall structure. A rotating platform is set on the top of the frame. The rotating platform is driven by a drive motor to achieve horizontal rotation. One end of a horizontally set support arm is fixedly connected to the rotating platform, and the other end of the support arm is connected to a hoisting mechanism. The hoisting mechanism includes a first cylinder fixedly connected to the support arm. The first cylinder is connected to a cylinder output end. The lower end of the cylinder output end is rigidly connected to a horizontal connecting plate. A clamping mechanism is set on the lower side of the horizontal connecting plate. The first cylinder is used to drive the cylinder output end to move up and down in the vertical direction, thereby driving the entire clamping mechanism to achieve height adjustment. The clamping mechanism includes a square frame fixedly connected to the horizontal connecting plate. A second cylinder is set vertically around the square frame. The piston rod of the second cylinder extends from the four sides of the square frame and is connected to a movable connecting plate at the end. A gripper is set on the lower side of the movable connecting plate.

[0006] Furthermore, it includes a base, one end of which is fixed to the ground and the other end is fixedly connected to the frame.

[0007] Furthermore, the gripper surface is provided with an anti-slip rubber layer.

[0008] Furthermore, the rotation angle range of the rotating platform is 0-360°.

[0009] Furthermore, two clamping mechanisms are symmetrically arranged at both ends of the lower side of the horizontal connecting plate.

[0010] This utility model has the following beneficial effects:

[0011] 1. The angle of the rotating platform is controlled by the second motor, which ensures the accurate positioning of the flow meter; the first cylinder and the cylinder output end realize vertical lifting and lowering, and the rotating platform provides horizontal rotation, which can be adjusted with multiple degrees of freedom to adapt to different detection scenarios.

[0012] 2. The first cylinder is responsible for lifting and the second cylinder is responsible for clamping. The division of labor is clear, the pneumatic system has a fast response speed, and it is suitable for high-frequency grasping scenarios.

[0013] 3. The grippers can automatically adjust their opening and closing range according to the flow meter size to avoid surface damage; the dual gripping mechanisms work together to achieve efficient detection and shorten the detection cycle. Attached Figure Description

[0014] Figure 1 This is a first-view structural schematic diagram of the present invention;

[0015] Figure 2 This is a structural schematic diagram of the present invention from a second perspective;

[0016] Figure 3 This is a structural schematic diagram of the present invention from a third-view perspective;

[0017] Figure 4 This is a schematic diagram of the clamping mechanism of this utility model.

[0018] In the diagram: 1. Frame; 2. Rotating platform; 3. Support arm; 4. First cylinder; 5. Cylinder output end; 6. Horizontal connecting plate; 7. Movable connecting plate; 8. Gripper; 9. Base; 10. Drive motor; 11. Square frame; 12. Piston rod. Detailed Implementation

[0019] 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.

[0020] like Figures 1-3 As shown, an auxiliary hoisting device for flow meter detection in this embodiment includes a frame 1, a rotating platform 2, a support arm 3, and a clamping mechanism. The frame 1 is used to support the overall structure. The frame 1 is made of aluminum alloy and the overall weight is less than 50kg. A base 9 is provided at the lower end of the frame. One end of the base 9 is fixed to the ground, and the other end is fixedly connected to the frame 1.

[0021] A rotating platform 2 is mounted on top of the frame 1. A drive motor 10 is installed on one side of the rotating platform 2, which drives the rotating platform 2 to achieve horizontal rotation. The rotation angle range of the rotating platform 2 is 0-360°. One end of the support arm 3 is fixed to the rotating platform 2, and the other end is connected to a hoisting mechanism.

[0022] The hoisting mechanism includes a first cylinder 4, which is located at the top of the hoisting mechanism. The first cylinder 4 is connected to the cylinder output end 5, and the lower end of the cylinder output end 5 is bolted to the horizontal connecting plate 6. A clamping mechanism is provided on the lower side of the horizontal connecting plate 6. The first cylinder 4 drives the cylinder output end 5 to move up and down in the vertical direction, thereby driving the entire clamping mechanism to achieve height adjustment.

[0023] like Figure 4 As shown, two clamping mechanisms are symmetrically arranged on the lower side of the horizontal connecting plate 6, with a spacing of 300mm. Each clamping mechanism includes a square frame 11 that connects to the horizontal connecting plate 6. A second cylinder is fixedly installed vertically around the square frame 11. The piston rod 12 of the second cylinder extends from the four sides of the square frame 11 and is fixedly connected to the end of a movable connecting plate 7. The lower end of the movable connecting plate 7 is fixed with a clamping claw 8 by bolts. The surface of the clamping claw 8 is provided with an anti-slip rubber layer. The clamping force of the clamping claw 8 is dynamically adjusted by the second cylinder.

[0024] The first cylinder 4 is a double-acting cylinder. When the first cylinder 4 is ventilated, the cylinder output end 5 extends or retracts, directly driving the clamping mechanism to move up and down, thus positioning the gripper 8 in the vertical direction. The second cylinder is also a double-acting cylinder. When the second cylinder is ventilated, the piston rod 12 retracts, pushing the gripper 8 to close, thus grasping the object. When the second cylinder is ventilated in the opposite direction, the piston rod 12 extends, driving the gripper 8 to open and release the object. By setting the second cylinder to drive the mechanism, it features fast response and stable clamping force, making it suitable for scenarios requiring rapid opening and closing. The opening and closing range of the gripper 8 is 50-300mm, compatible with DN50-DN300 flow meters, and the clamping force repeatability is ≤±2%.

[0025] In use, the frame 1 is fixed to the ground of the inspection station via the base 9. The first cylinder 4 is connected to the support arm 3. The rotating platform 2 is installed on the top of the frame 1 and driven by the drive motor 10. One end of the support arm 3 is fixed to the rotating platform 2, and the other end extends to the area to be inspected. The first cylinder 4 is connected to the cylinder output end 5. The lower end of the cylinder output end 5 is bolted to the horizontal connecting plate 6. Two clamping mechanisms are installed at the bottom of the horizontal connecting plate 6, and each clamping mechanism is equipped with four grippers 8.

[0026] First, adjust the air pressure of the second cylinder to 0.5MPa to ensure there is no air leakage. Then, send a reset command through the PLC controller. The gripper 8 opens to its maximum stroke, the rotating platform 2 returns to its initial position of 0°, and the cylinder output end 5 retracts to its shortest state. The drive motor 10 drives the rotating platform 2 to rotate directly above the flow meter to be gripped. The first cylinder 4 drives the entire gripping mechanism to move up and down through the cylinder output end 5. Then, the second cylinder is vented, and the piston rod 12 retracts to push the gripper 8 to close, thus gripping the flow meter to be gripped. After that, the flow meter is transferred to the testing station for testing. After the testing is completed, the gripper 8 moves in the order of "release first, then raise," the drive motor 10 drives the rotating platform 2 to return to its initial angle, the cylinder output end 5 retracts to the standby position, and the system enters the next working cycle.

[0027] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. An auxiliary hoisting device for flow meter detection, characterized in that: The system includes a frame (1) for supporting the overall structure, a rotating platform (2) on top of the frame (1), the rotating platform (2) being driven by a drive motor (10) to achieve horizontal rotation, one end of a horizontally arranged support arm (3) being fixedly connected to the rotating platform (2), and the other end of the support arm (3) being connected to a hoisting mechanism; the hoisting mechanism includes a first cylinder (4) fixedly connected to the support arm (3), the first cylinder (4) being connected to a cylinder output end (5), and the lower end of the cylinder output end (5) being rigidly connected to a horizontal connecting plate (6). A clamping mechanism is provided on the lower side of the horizontal connecting plate (6). The first cylinder (4) is used to drive the cylinder output end (5) to move up and down in the vertical direction, thereby driving the entire clamping mechanism to achieve height adjustment. The clamping mechanism includes a square frame (11) fixedly connected to the horizontal connecting plate (6). A second cylinder is provided on the four sides of the square frame (11) vertically. The piston rod (12) of the second cylinder extends from the four sides of the square frame (11) and the end is connected to the movable connecting plate (7). A gripper is provided on the lower side of the movable connecting plate (7).

2. The auxiliary hoisting device for flowmeter detection according to claim 1, characterized in that: Includes a base (9), one end of which is fixed to the ground and the other end is fixedly connected to the frame (1).

3. The auxiliary hoisting device for flowmeter detection according to claim 1, characterized in that: The gripper (8) has an anti-slip rubber layer on its surface.

4. The auxiliary hoisting device for flowmeter inspection according to claim 1, characterized in that: The rotation angle range of the rotating platform (2) is 0-360°.

5. The auxiliary hoisting device for flowmeter detection according to any one of claims 1-4, characterized in that: Two clamping mechanisms are symmetrically arranged at both ends of the lower side of the horizontal connecting plate (6).

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