Hydrocylinder vertical lift frame

Abstract

The application discloses an oil cylinder vertical lifting rack and belongs to the technical field of oil cylinder testing. The oil cylinder vertical lifting rack comprises a portal frame, a mounting frame and a lifting assembly. The portal frame comprises a top frame and four vertical columns arranged below the corners of the top frame. Slides are vertically arranged on the four vertical columns. Slides are mounted on the slides. Four corners of the mounting frame are respectively mounted on the four slides through the four slides. A calibration hole is formed in the mounting frame. The calibration hole is provided with a plurality of types of fixing plates. The fixing plates can be rotated and calibrated in the calibration hole under stress. The output end of the oil cylinder to be tested is connected with the fixing plate. The top frame is provided with a lifting assembly and an anti-falling assembly. The anti-falling assembly and the lifting assembly are respectively connected with the mounting frame. The lifting assembly drives the mounting frame to move up and down.

Description

Technical Field

[0001] This application relates to the field of hydraulic cylinder testing technology, and in particular to a hydraulic cylinder vertical lifting platform. Background Technology

[0002] In modern industrial systems, hydraulic cylinders, with their powerful output, high efficiency, high reliability, and convenient control, are widely used in numerous mechanical equipment and industrial fields, becoming key power components. From large-scale engineering machinery to precision machine tools, the performance of hydraulic cylinders often directly determines the operating efficiency, operational accuracy, and safety and reliability of the entire piece of equipment. Therefore, in the manufacturing process of hydraulic cylinders, conducting comprehensive, accurate, and reliable performance testing on finished products is a necessary step to ensure product quality and guarantee the safe operation of equipment.

[0003] Relevant prior art, such as Chinese patent application "A Hydraulic Cylinder Pressure Testing Device with Clamping Mechanism," application number CN202122106775.5, discloses a device including a worktable, a guide platform, and a gantry frame. A guide platform is mounted on one side of the top of the worktable, and a gantry frame is mounted on one side of the top of the guide platform. A conveyor belt is provided on one side of the top of the worktable. A rotating shaft is provided on the inner side wall of the guide platform, and rollers are provided on the surface of the rotating shaft. A driven gear is provided on one side of the rotating shaft surface, and a track strip meshes with the surface of the driven gear. A support base is mounted on one side of the top of the worktable, and a drive motor is mounted on the top of the support base. Through the arrangement of the conveyor belt, rollers, drive motor, drive gear, driven gear, track strip, and rotating shaft, and the combined use of the drive motor, drive gear, track strip, and rollers, the rotation of the rollers drives the hydraulic cylinder body at the top to be transported to the worktable, avoiding accidents that might occur if the operator manually handles it.

[0004] The aforementioned existing technologies have safety risks. They may malfunction during transportation and testing, but lack safety monitoring throughout the process, are unable to handle abnormal situations, and could still cause harm to workers. Furthermore, the testing process is not intuitive enough, making it difficult for workers to observe the test results accurately and in a timely manner. The lack of precise control and compensation measures for the stress state of the hydraulic cylinder and environmental interference may lead to inaccurate and unreliable test data. Utility Model Content

[0005] The technical problem to be solved by this application is to provide a vertical lifting platform for hydraulic cylinders, with added safety protection structure, intuitive testing process, and accurate and reliable test data.

[0006] The technical solution adopted in this application is as follows: a vertical lifting platform for hydraulic cylinders, including a gantry frame, a mounting frame, and a lifting assembly. The gantry frame includes a top frame and four columns located below the corners of the top frame. Each of the four columns is vertically equipped with a slide rail, and each slide rail is equipped with a sliding plate. The four corners of the mounting frame are respectively mounted on four tracks via four sliding plates. The mounting frame has calibration holes, and the calibration holes are equipped with various types of fixing plates. The fixing plates can be rotated and calibrated within the calibration holes under force. The output end of the hydraulic cylinder to be tested is connected to the fixing plate. The top frame is equipped with a lifting assembly and an anti-fall assembly. The anti-fall assembly and the lifting assembly are respectively connected to the mounting frame. The operation of the lifting assembly drives the mounting frame to move up and down.

[0007] Compared with the prior art, the advantages of this application are that, firstly, an anti-fall component is installed on the top frame and connected to the installation frame. During the lifting process, even if the lifting component fails unexpectedly, the anti-fall component can act quickly to prevent the installation frame and hydraulic cylinder from falling suddenly, providing double safety protection for the staff.

[0008] Secondly, the four corners of the mounting frame are respectively mounted on the slide rails of the four columns via four sliding plates. This four-point distribution of the slide rails and sliding plates makes the mounting frame move more smoothly up and down, reducing the risk of swaying and displacement. When the lifting assembly moves the mounting frame up and down, the force on the hydraulic cylinder can be distributed more evenly on each support point, reducing test errors caused by uneven force, thereby ensuring the safety of the testing process and the reliability of the test data.

[0009] Furthermore, the overall structural design allows staff to clearly observe the working status of the hydraulic cylinder in a relatively open space during vertical lifting tests, including its extension and retraction processes as well as the stress on various parts. Compared to some complex, enclosed testing devices, the testing process is more intuitive, making it easier for staff to promptly identify and address any abnormalities.

[0010] In addition, the mounting frame of this application has calibration holes and is equipped with various types of fixing plates. The fixing plates can be rotated and calibrated within the calibration holes when subjected to force. This design can easily and quickly adapt to different specifications and models of hydraulic cylinders, making the connection between the output end of the hydraulic cylinder and the fixing plate more accurate and secure, improving the efficiency and convenience of hydraulic cylinder installation, and saving preparation time before testing.

[0011] In some embodiments of this application, a scale mark is vertically provided on the side of one of the slide rails, and a horizontal pointer is connected to one side of the mounting frame, with the horizontal pointer pointing to the scale mark.

[0012] As the mounting frame moves along the slide rail, the horizontal pointer points to the scale markings, which visually indicates the displacement height of the mounting frame. This allows staff to accurately control and measure the lifting height of the hydraulic cylinder, improving the operability and measurement accuracy of the testing process.

[0013] In some embodiments of this application, a first calibration arrow is provided on the mounting frame and around the calibration hole; a second calibration arrow is provided on the surface of the fixing plate, and the fixing plate is properly installed at the calibration hole when the second calibration arrow is opposite to the first calibration arrow.

[0014] When installing the mounting plate, the relative positions of the first and second calibration arrows can quickly and accurately determine whether the mounting plate is installed correctly at the calibration hole, ensuring the accuracy of the cylinder installation, improving installation efficiency and quality, and thus ensuring the reliability of the test results.

[0015] In some embodiments of this application, the fall arrestor assembly includes two fall arrestors, and an inverted U-shaped frame is provided on the top frame. Two fall arrestors are suspended from the bottom surface of the U-shaped frame and are spaced apart.

[0016] Two fall arrestors are spaced apart on the bottom surface of the inverted U-shaped frame. This structure distributes the weight of the mounting frame and hydraulic cylinder more evenly, enhancing the load-bearing capacity and stability of the fall arrestor assembly. During lifting, if the lifting assembly malfunctions, the fall arrestors can more effectively prevent the mounting frame and hydraulic cylinder from falling, providing more reliable safety for workers.

[0017] In some embodiments of this application, the top surface of the mounting frame and the bottom surface of the U-shaped frame are provided with hanging rings, and the fall arrestor is connected to the mounting frame or the U-shaped frame through the hanging rings.

[0018] The hanging ring design makes the connection between the fall arrestor and the mounting frame and U-shaped frame more convenient and secure. The installation and disassembly process is simple and quick, which helps to improve the maintenance efficiency and usage flexibility of the equipment, while ensuring the effectiveness and reliability of the fall arrestor components.

[0019] In some embodiments of this application, the lifting assembly includes a lift, which is connected to the mounting frame via a steel wire rope, and the operation of the lift will change the length of the steel wire rope.

[0020] In this application, due to the weight of the mounting frame itself, it will naturally fall after being installed on the slide rail. Therefore, this application only needs to use a lift and wire rope to hoist the mounting frame to control its height.

[0021] The lifting platform is connected to the installation frame via steel wire ropes. The lifting and lowering of the installation frame is achieved by changing the length of the steel wire ropes. This transmission method has a simple structure, low cost, and stable operation. It can accurately control the lifting height and speed of the installation frame, meet the requirements of different testing heights, and improve the practicality and economy of the equipment.

[0022] In some embodiments of this application, an electrical control cabinet is provided on one side of the top frame, a control device is installed inside the electrical control cabinet, a three-color indicator light is provided above the electrical control cabinet, and a control button box is provided on one of the columns. The lifting assembly, the control button box, the three-color indicator light and the control device are electrically connected.

[0023] Through the control unit inside the electrical control cabinet, operators can easily control the working status of the lifting components using the control button box, achieving automated control of the lifting of the installation frame. Meanwhile, the three-color indicator lights clearly display the equipment's working status, allowing operators to promptly understand the equipment's operating conditions and improving operational convenience and safety.

[0024] In some embodiments of this application, a first limit switch is provided on one of the columns, and the first limit switch is correspondingly set at the initial position of the mounting frame, wherein a sensor is provided on the mounting frame.

[0025] The first limit switch, in conjunction with the sensor, can accurately detect whether the mounting frame has reached its initial position and feed the signal back to the control device. Based on this signal, the control device can automatically control the working state of the lifting assembly, preventing the mounting frame from rising excessively and affecting test results or damaging the equipment, thus improving the automation level and safety of the equipment.

[0026] In some embodiments of this application, a movable column is provided vertically below the first limit switch, a movable plate is movably mounted on the movable column, and a locking component is provided on the movable plate; when the locking component is in the unlocked state, the movable plate can move up and down along the movable column; when the locking component is in the locked state, the movable plate is fixed on the movable column.

[0027] The above structure further expands the functionality of this application. By allowing the movable plate to move up and down along the movable column to a suitable position and then locking it, the travel endpoint of the mounting frame can be flexibly set, increasing the adjustability and adaptability of the equipment.

[0028] In some embodiments of this application, a second limit switch is provided on the active plate.

[0029] In this application, both the first limit switch and the second limit switch are electrically connected to the control device. The first limit switch corresponds to the initial position of the mounting frame, and the second limit switch corresponds to the end point of the mounting frame's travel. When the mounting frame reaches the end point of its travel, the second limit switch is triggered, sending a signal back to the control device to automatically stop the lifting assembly. This ensures that the mounting frame moves within the set travel range, preventing excessive lifting and lowering, and further improving the safety and reliability of the equipment.

[0030] Based on common knowledge in the field, the above-described embodiments can be combined arbitrarily. Attached Figure Description

[0031] The present application will be described in further detail below with reference to the accompanying drawings and preferred embodiments. However, those skilled in the art will understand that these drawings are drawn only for the purpose of explaining the preferred embodiments and therefore should not be construed as limiting the scope of the present application. Furthermore, unless specifically indicated, the drawings are only schematic representations of the composition or structure of the described objects and may contain exaggerated depictions, and the drawings are not necessarily drawn to scale.

[0032] Figure 1 This is a schematic diagram of the structure of this application. Figure 1 ;

[0033] Figure 2 This is a front view of this application;

[0034] Figure 3 This is a schematic diagram of the structure of this application. Figure 2 ;

[0035] Figure 4 This is a schematic diagram of the structure of this application. Figure 3 .

[0036] The specific annotations in the attached drawings are as follows: 1. Gantry frame; 2. Mounting frame; 3. Top frame; 4. Column; 5. Slide rail; 6. Slide plate; 7. Calibration hole; 8. Fixing plate; 9. Fall arrestor; 10. Hanging ring; 11. Lifting machine; 12. Wire rope; 13. Electrical control cabinet; 14. Three-color indicator light; 15. Control button box; 16. First limit switch; 17. Sensor; 18. Movable column; 19. Movable plate; 20. Locking assembly; 21. Second limit switch; 22. U-shaped frame; 23. Scale marking; 24. Horizontal pointer; 25. First calibration arrow; 26. Second calibration arrow; 27. Hydraulic cylinder. Detailed Implementation

[0037] The present application will now be described in detail with reference to the accompanying drawings.

[0038] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0039] Hydraulic cylinder vertical lifting platform, as in embodiment one Figure 1 , Figure 2 As shown, the system includes a gantry frame 1, a mounting frame 2, and a lifting assembly. The gantry frame 1 includes a top frame 3 and four uprights 4 located below the corners of the top frame 3. Each of the four uprights 4 has a vertically mounted slide rail 5, and each slide rail 5 has a sliding plate 6 mounted on it. The four corners of the mounting frame 2 are respectively mounted on the four tracks via the four sliding plates 6. This four-point distribution of the slide rails 5 and sliding plates 6 makes the mounting frame 2 move more smoothly up and down, reducing the risk of swaying and deviation. When the lifting assembly moves the mounting frame 2 up and down, the force on the hydraulic cylinder 27 is distributed relatively evenly across the support points, reducing testing errors caused by uneven force distribution, thereby ensuring the safety of the testing process and the reliability of the test data.

[0040] The mounting frame 2 has a calibration hole 7, which is equipped with various types of fixing plates 8. The fixing plate 8 can be rotated and calibrated within the calibration hole 7 under force. The output end of the hydraulic cylinder 27 to be tested is connected to the fixing plate 8. This design can easily and quickly adapt to hydraulic cylinders 27 of different specifications and models, making the connection between the output end of the hydraulic cylinder 27 and the fixing plate 8 more accurate and secure, improving the efficiency and convenience of hydraulic cylinder 27 installation, and saving preparation time before testing.

[0041] The top frame 3 is equipped with a lifting assembly and a fall protection assembly. The fall protection assembly and the lifting assembly are respectively connected to the mounting frame 2. The lifting assembly moves the mounting frame 2 up and down. The fall protection assembly on the top frame 3 is connected to the mounting frame 2. During the lifting process, even if the lifting assembly fails unexpectedly, the fall protection assembly can act quickly to prevent the mounting frame 2 and the hydraulic cylinder 27 from falling suddenly, providing double safety protection for the staff.

[0042] The overall structural design of this application allows the staff to clearly observe the working status of the hydraulic cylinder 27 in a relatively open space during the vertical lifting test, including its extension and retraction process and the stress on various parts. Compared with some complex and enclosed testing devices, the testing process is more intuitive, making it easier for staff to detect abnormalities and take timely action.

[0043] Example 2, as Figures 1 to 4As shown, one of the slide rails 5 has a vertically arranged scale mark 23 on its side, and a horizontal pointer 24 is connected to one side of the mounting frame 2, pointing to the scale mark 23. When the mounting frame 2 moves on the slide rail 5, the horizontal pointer 24 pointing to the scale mark 23 can intuitively display the displacement height of the mounting frame 2, which facilitates the operator to accurately control and measure the lifting height of the hydraulic cylinder 27, improving the operability and measurement accuracy of the testing process.

[0044] A first calibration arrow 25 is provided on the outer periphery of the calibration hole 7 on the mounting frame 2; a second calibration arrow 26 is provided on the surface of the fixing plate 8. When the second calibration arrow 26 is opposite to the first calibration arrow 25, the fixing plate 8 is properly installed at the calibration hole 7. When installing the fixing plate 8, the relative position of the first calibration arrow 25 and the second calibration arrow 26 can quickly and accurately determine whether the fixing plate 8 is properly installed at the calibration hole 7, ensuring the accuracy of the installation of the hydraulic cylinder 27, improving installation efficiency and quality, and thus ensuring the reliability of the test results.

[0045] The fall arrestor assembly includes two fall arresters 9. An inverted U-shaped frame 22 is mounted on the top frame 3, and two fall arresters 9 are suspended from the bottom surface of the U-shaped frame 22, spaced apart. This spacing between the two fall arresters 9 on the bottom surface of the inverted U-shaped frame 22 more evenly distributes the weight of the mounting frame 2 and the hydraulic cylinder 27, enhancing the load-bearing capacity and stability of the fall arrestor assembly. During lifting, if the lifting assembly malfunctions, the fall arresters 9 can more effectively prevent the mounting frame 2 and the hydraulic cylinder 27 from falling, providing more reliable safety for workers.

[0046] Hanging rings 10 are provided on the top surface of the mounting frame 2 and the bottom surface of the U-shaped frame 22. The fall arrester 9 is connected to the mounting frame 2 or the U-shaped frame 22 through the hanging rings 10. The hanging rings 10 make the connection between the fall arrester 9 and the mounting frame 2 and the U-shaped frame 22 more convenient and secure. The installation and disassembly process is simple and quick, which helps to improve the maintenance efficiency and flexibility of the equipment, while ensuring the effectiveness and reliability of the fall arrester components.

[0047] The rest of the contents of Example 2 are the same as those of Example 1.

[0048] Example 3, as Figures 1 to 4As shown, the lifting assembly includes a lift 11, which is connected to the mounting frame 2 via a steel wire rope 12. The operation of the lift 11 changes the length of the steel wire rope 12. In this application, due to the weight of the mounting frame 2 itself, it will naturally fall after being installed on the slide rail 5. Therefore, this application only needs to use the lift 11 and the steel wire rope 12 to hoist the mounting frame 2, thus controlling its height. The lift 11 is connected to the mounting frame 2 via the steel wire rope 12. The lifting and lowering of the mounting frame 2 is achieved by changing the length of the steel wire rope 12 using the lift 11. This transmission method has a simple structure, low cost, and stable operation, and can accurately control the lifting height and speed of the mounting frame 2, meeting the requirements of different testing heights and improving the practicality and economy of the equipment.

[0049] An electrical control cabinet 13 is installed on one side of the top frame 3, housing a control device. A three-color indicator light 14 is positioned above the cabinet. A control button box 15 is located on one side of one of the columns 4. The lifting assembly, control button box 15, and three-color indicator light 14 are electrically connected to the control device. Through the control device within the cabinet 13, operators can easily control the working status of the lifting assembly using the control button box 15, achieving automated control of the lifting of the mounting frame 2. Simultaneously, the three-color indicator light 14 visually displays the equipment's working status, allowing operators to promptly understand the equipment's operating condition and improving operational convenience and safety.

[0050] One of the columns 4 is equipped with a first limit switch 16, which is positioned at the initial position of the mounting frame 2. A sensor 17 is mounted on the mounting frame 2. The first limit switch 16, in conjunction with the sensor 17, accurately detects whether the mounting frame 2 has reached its initial position and feeds a signal back to the control device. Based on this signal, the control device automatically controls the operation of the lifting assembly, preventing the mounting frame 2 from rising excessively and affecting test results or damaging the equipment, thus improving the automation and safety of the equipment.

[0051] A movable column 18 is vertically positioned below the first limit switch 16. A movable plate 19 is movably mounted on the movable column 18, and a locking component 20 is provided on the movable plate 19. When the locking component 20 is in the unlocked state, the movable plate 19 can move up and down along the movable column 18; when the locking component 20 is in the locked state, the movable plate 19 is fixed to the movable column 18. This structure further expands the functionality of this application. By allowing the movable plate 19 to move up and down along the movable column 18 to a suitable position and then lock, the travel endpoint of the mounting frame 2 can be flexibly set, increasing the adjustability and adaptability of the equipment.

[0052] A second limit switch 21 is provided on the movable plate 19. In this application, both the first limit switch 16 and the second limit switch 21 are electrically connected to the control device. The first limit switch 16 corresponds to the initial position of the mounting frame 2, and the second limit switch 21 corresponds to the end point of the travel of the mounting frame 2. When the mounting frame 2 reaches the end point of its travel, the second limit switch 21 is triggered, sending a signal back to the control device to automatically stop the lifting assembly, ensuring that the mounting frame 2 moves within the set travel range, preventing excessive lifting and lowering, and further improving the safety and reliability of the equipment.

[0053] The other contents of Example 3 are the same as those of Example 1 or Example 2.

[0054] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The descriptions of the embodiments above are only for the purpose of helping to understand the present application and its core ideas. It should be noted that those skilled in the art can make several improvements and modifications to the present application without departing from the principles of the present application, and these improvements and modifications also fall within the protection scope of the claims of the present application.

Claims

1. A hydraulic cylinder vertical lifting platform, characterized in that, The system includes a gantry frame (1), an installation frame (2), and a lifting assembly. The gantry frame (1) includes a top frame (3) and four columns (4) located below the corners of the top frame (3). Each of the four columns (4) is vertically equipped with a slide rail (5), and each slide rail (5) is equipped with a sliding plate (6). The four corners of the installation frame (2) are respectively mounted on four tracks via four sliding plates (6). The installation frame (2) has a calibration hole (7), and the calibration hole (7) is equipped with various types of fixing plates (8). The fixing plate (8) can be rotated and calibrated within the calibration hole (7) under force. The output end of the cylinder (27) to be tested is connected to the fixing plate (8). The top frame (3) is equipped with a lifting assembly and a fall protection assembly. The fall protection assembly and the lifting assembly are respectively connected to the installation frame (2). The lifting assembly drives the installation frame (2) to move up and down.

2. The vertical lifting platform for the hydraulic cylinder (27) according to claim 1, characterized in that, One of the slide rails (5) has a vertical scale mark (23) on its side, and a horizontal pointer (24) is connected to one side of the mounting frame (2), with the horizontal pointer (24) pointing to the scale mark (23).

3. The vertical lifting platform for the hydraulic cylinder (27) according to claim 1, characterized in that, The mounting frame (2) has a first calibration arrow (25) on the outer periphery of the calibration hole (7); the fixing plate (8) has a second calibration arrow (26) on its surface. When the second calibration arrow (26) is opposite to the first calibration arrow (25), the fixing plate (8) is properly installed at the calibration hole (7).

4. The vertical lifting platform for the hydraulic cylinder (27) according to claim 1, characterized in that, The fall protection assembly includes two fall protectors (9), and an inverted U-shaped frame (22) is provided on the top frame (3). Two fall protectors (9) are suspended on the bottom surface of the U-shaped frame (22) and the two fall protectors (9) are spaced apart.

5. The vertical lifting platform for the hydraulic cylinder (27) according to claim 1, characterized in that, The top surface of the mounting frame (2) and the bottom surface of the U-shaped frame (22) are provided with hanging rings (10), and the fall arrestor (9) is connected to the mounting frame (2) or the U-shaped frame (22) through the hanging rings (10).

6. The vertical lifting platform for the hydraulic cylinder (27) according to claim 1, characterized in that, The lifting assembly includes a lift (11), which is connected to the mounting frame (2) via a steel wire rope (12). The operation of the lift (11) will change the length of the steel wire rope (12).

7. The vertical lifting platform for the hydraulic cylinder (27) according to claim 1, characterized in that, An electrical control cabinet (13) is provided on one side of the top frame (3). A control device is installed inside the electrical control cabinet (13). A three-color indicator light (14) is provided above the electrical control cabinet (13). A control button box (15) is provided on one side of one of the columns (4). The lifting assembly, the control button box (15), the three-color indicator light (14) are electrically connected to the control device.

8. The vertical lifting platform for the hydraulic cylinder (27) according to claim 1, characterized in that, One of the columns (4) is equipped with a first limit switch (16), which is set at the initial position of the mounting frame (2), and a sensor (17) is set on the mounting frame (2).

9. The vertical lifting platform for the hydraulic cylinder (27) according to claim 8, characterized in that, A movable column (18) is provided vertically below the first limit switch (16), and a movable plate (19) is movably mounted on the movable column (18). A locking component (20) is provided on the movable plate (19). When the locking component (20) is in the unlocked state, the movable plate (19) can move up and down along the movable column (18). When the locking component (20) is in the locked state, the movable plate (19) is fixed on the movable column (18).

10. The vertical lifting platform for the hydraulic cylinder (27) according to claim 9, characterized in that, A second limit switch (21) is provided on the movable plate (19).

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