Maintenance working device for dynamic axial compression column tail
By designing a maintenance work device for dynamic axial compression columns and using driving parts such as jacks and hydraulic cylinders to simplify the disassembly and assembly process of the column tail, the problem that large column tails cannot be disassembled and assembled manually is solved, and efficient and safe maintenance operations are achieved.
Patent Information
- Application Number
- CN202422782592.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-14
- Publication Date
- 2025-10-10
- Estimated Expiration
- 2034-11-14
AI Technical Summary
The column tail of a large dynamic axial compression column system is too heavy to be disassembled and maintained manually, making maintenance difficult and unsafe.
A maintenance work device is designed, which includes a frame, an operating platform and a driving part. The driving parts such as a jack and a hydraulic cylinder are used to make the operating platform slide and rotate, so as to realize the support, unloading and rotation of the column tail. The moving wheels and wedge blocks are used to improve the stability and simplify the disassembly and assembly process of the column tail.
It reduces the demand for human labor, saves 50%-70% of working hours, improves the efficiency and safety of maintenance work, and reduces human errors.
Smart Images
Figure CN223422309U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of compression columns, and in particular to a maintenance device for the tail of a dynamic axial compression column. Background Art
[0002] With the rapid development of industries such as pharmaceuticals and biochemicals, liquid chromatography separation technology has been increasingly developed and applied, becoming an important method for separating and purifying complex mixtures. The uniformity and stability of the packing density within the chromatographic column bed are closely related to the sample separation effect. Therefore, the packing of the chromatographic column must meet the requirements of bed continuity, uniformity, stability, and tightness. The dynamic compression packing methods for chromatographic columns mainly include axial compression, radial compression, and circumferential compression. The principle of axial compression technology for packing chromatographic columns is to use a piston to compress the bed. External power drives the piston up and down to pack the column, maintain column pressure, and relieve pressure. The piston is equipped with a sealing ring around the piston, which allows the piston to slide freely up and down while maintaining a high sealing pressure.
[0003] However, in the column packing technology in the field of preparative chromatography, the column tail of a large dynamic axial compression column system is an important component, but because it usually weighs more than 350 kg, it cannot be disassembled and maintained by manpower. Utility Model Content
[0004] In order to facilitate the maintenance of the compression column tail, the present application provides a maintenance work device for the dynamic axial compression column tail.
[0005] The present application provides a maintenance device for a dynamic axial compression column tail, which adopts the following technical solution:
[0006] A maintenance work device for a dynamic axial compression column tail comprises a frame and an operating platform arranged on the frame, wherein the operating platform is slidingly arranged on the frame and slides vertically, and a driving member for driving the operating platform to slide is arranged on the frame; the operating platform is rotatably arranged on the frame, and the rotation axis of the operating platform is vertical, and the frame is a movable frame.
[0007] Optionally, the driving component includes a jack arranged in the frame, the jack piston rod is arranged vertically, and the operating platform is arranged on the jack output shaft.
[0008] Optionally, a mounting plate is provided on the frame, the mounting plate is provided on the output shaft of the jack, the operating platform is rotatably provided on the mounting plate, the operating platform is parallel to the mounting plate, and the rotation axis of the operating platform is perpendicular to the mounting plate.
[0009] Optionally, a bearing is embedded in the mounting plate, and a connecting rod is fixedly provided on the side of the operating platform facing the mounting plate, and the connecting rod is plugged and fixed to the inner ring of the bearing.
[0010] Optionally, movable wheels are provided at the ends of the supporting legs of the frame.
[0011] Optionally, a contact plate is slidingly provided on the support leg of the rack, and the contact plate slides along the length direction of the support leg. A notch is provided on the contact plate for the moving wheel to pass through. A moving part is provided on the rack, and the moving part is used to drive the contact plate to slide past the moving wheel and abut against the ground.
[0012] Optionally, the moving member includes a hydraulic cylinder arranged on the supporting leg, the length direction of the hydraulic cylinder piston rod is parallel to the length direction of the supporting leg and faces the moving wheel, and the contact plate is fixedly arranged on the hydraulic cylinder piston rod.
[0013] Optionally, a wedge block is slidingly provided on the contact plate and located on the side wall of the gap, and the wedge block is used to enter the gap between the ground and the moving wheel. The contact plate is provided with an elastic member for driving the wedge block to slide.
[0014] Optionally, the surface of the wedge block facing the moving wheel protrudes outward toward the moving wheel to form a triangle. When the contact plate drives the wedge block to move downward, the inclined surface on the lower side of the wedge block abuts against the moving wheel to make the wedge block move back into the contact plate. After the wedge block passes the moving wheel, the wedge block is moved between the moving wheel and the ground and clamps the moving wheel.
[0015] Optionally, the elastic member includes a spring arranged in the contact plate, the spring is parallel to the contact plate and perpendicular to the side wall of the notch, one end of the spring is fixedly arranged in the contact plate, and the other end is fixedly arranged at the tail of the wedge block.
[0016] In summary, this application includes at least one of the following beneficial technical effects:
[0017] 1. When disassembling and maintaining a dynamic column, move the rack to the position directly below the column system and adjust the height of the operating platform using the drive unit so that it just supports the column base. Then, remove the fastening screws at the column base and remove it from the rack for cleaning and maintenance. This reduces labor requirements and saves 50%-70% of work hours. This not only improves work efficiency but also reduces human error, making disassembly and maintenance safer and more efficient. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 This is a schematic diagram of the overall structure of a maintenance device for a dynamic axial compression column tail according to an embodiment of the present application;
[0019] Figure 2 This is a cross-sectional view of a maintenance device for a dynamic axial compression column tail according to an embodiment of the present application;
[0020] Figure 3 yes Figure 2 Enlarged schematic diagram of part A.
[0021] Explanation of the accompanying symbols: 1. Frame; 2. Operating platform; 3. Jack; 4. Mounting plate; 5. Bearing; 6. Connecting rod; 7. Moving wheel; 8. Contact plate; 9. Notch; 10. Hydraulic cylinder; 11. Wedge block; 12. Spring. DETAILED DESCRIPTION
[0022] The following is combined with Figure 1-3 This application is described in further detail.
[0023] The embodiment of the present application discloses a maintenance device for a dynamic axial compression column tail. Figure 1 and Figure 2 The maintenance device of the column tail of the dynamic axial compression column includes a frame 1 and an operating platform 2 arranged on the frame 1. The operating platform 2 is slidably arranged on the frame 1 and slides vertically. The frame 1 is provided with a driving member for driving the operating platform 2 to slide. When the dynamic column needs to be disassembled and maintained, the frame 1 is moved to the bottom of the column system, and the driving member is adjusted to adjust the height of the operating platform 2 so that it just supports the column tail. Then, the fastening screws of the column tail are removed and it is moved out of the frame 1 to complete the cleaning and maintenance of the column tail.
[0024] Reference Figure 1 and Figure 2 In order to further facilitate the maintenance of the column tail, the operating platform 2 is rotatably set on the frame 1, and the rotation axis of the operating platform 2 is vertical; when the column tail is supported on the operating platform 2 and moved out, the operating platform 2 is rotated, and the operating platform 2 adjusts the direction of the column tail, which facilitates the maintenance of the rest of the column tail.
[0025] Reference Figure 1 and Figure 2 Furthermore, the rack 1 is a movable rack; the rack 1 is movable, which makes it easy to push the rack 1 and perform maintenance on the column tail.
[0026] Reference Figure 1 and Figure 2 In the embodiment of the present application, the driving component includes a jack 3 arranged in the frame 1, the piston rod of the jack 3 is arranged vertically, and the operating platform 2 is arranged on the output shaft of the jack 3; starting the jack 3 drives the operating platform 2 to slide and abut against the tail of the column, and the operation is simple and convenient.
[0027] Reference Figure 1 and Figure 2In the embodiment of the present application, a mounting plate 4 is provided on the frame 1, the mounting plate 4 is provided on the output shaft of the jack 3, the operating platform 2 is rotatably provided on the mounting plate 4, the operating platform 2 is parallel to the mounting plate 4, and the rotation axis of the operating platform 2 is perpendicular to the mounting plate 4; when maintaining the column tail, the jack 3 drives the mounting plate 4 to drive the operating platform 2 to move up and abut against the column tail, and then the operating platform 2 falls and drives the column tail to fall, and then the operating platform 2 is rotated, and the operating platform 2 drives the column tail to rotate and changes the maintenance angle of the column tail.
[0028] Reference Figure 1 and Figure 2 In the embodiment of the present application, a bearing 5 is embedded in the mounting plate 4, and a connecting rod 6 is fixedly provided on the side of the operating platform 2 facing the mounting plate 4. The connecting rod 6 is inserted and fixed to the inner ring of the bearing 5. Under the action of the bearing 5, the operating platform 2 and the mounting plate 4 are easily rotatably connected.
[0029] Reference Figure 1 and Figure 2 In the embodiment of the present application, a moving wheel 7 is provided at the end of the supporting leg of the frame 1.
[0030] Reference Figure 1 and Figure 2 In the embodiment of the present application, in order to reduce the possibility of the frame 1 accidentally moving when the column tail falls, a contact plate 8 is slidingly provided on the support leg of the frame 1. The contact plate 8 slides along the length direction of the support leg. A notch 9 is opened on the contact plate 8 for the moving wheel 7 to pass through.
[0031] Reference Figure 1 and Figure 2 A moving part is provided on the frame 1, and the moving part is used to drive the contact plate 8 to slide through the moving wheel 7 and abut against the ground. The moving part includes a hydraulic cylinder 10 provided on the support leg. The length direction of the piston rod of the hydraulic cylinder 10 is parallel to the length direction of the support leg and faces the moving wheel 7. The contact plate 8 is fixedly provided on the piston rod of the hydraulic cylinder 10.
[0032] When the frame 1 moves to the bottom of the column tail, the hydraulic cylinder 10 drives the contact plate 8 to slide. After the contact plate 8 slides and passes through the notch 9 and moves the wheel 7, the contact plate 8 falls and is supported on the ground. Under the action of the contact plate 8, the contact area between the moving wheel 7 and the ground is increased, thereby improving the stability of the frame 1.
[0033] Reference Figure 2 and Figure 3In order to further improve the stability of the frame 1, a wedge block 11 is slidingly provided on the contact plate 8 and on the side wall of the notch 9. The wedge block 11 is used to enter the gap between the ground and the moving wheel 7. The contact plate 8 is provided with an elastic member for driving the wedge block 11 to slide. The elastic member includes a spring 12 arranged in the contact plate 8. The spring 12 is parallel to the contact plate 8 and perpendicular to the side wall of the notch 9. One end of the spring 12 is fixed in the contact plate 8, and the other end is fixed at the tail of the wedge block 11; when the contact plate 8 passes the moving wheel 7, under the action of the spring 12, the wedge block 11 is driven to slide out of the contact plate 8 and enter the gap between the moving wheel 7 and the ground, thereby fixing the moving wheel 7 on the ground, and facilitating the falling installation of the column tail.
[0034] In order to facilitate the wedge block 11 to pass through the moving wheel 7 and fix the moving wheel 7, the surface of the wedge block 11 facing the moving wheel 7 bulges outward toward the moving wheel 7 to form a triangle. When the contact plate 8 drives the wedge block 11 to move downward, the inclined surface of the lower side of the wedge block 11 abuts the moving wheel 7 and causes the wedge block 11 to move back into the contact plate 8. After the wedge block 11 passes the moving wheel 7, the wedge block 11 is moved between the moving wheel 7 and the ground and clamps the moving wheel 7; under the action of the inclined surface of the wedge block 11, when the contact plate 8 moves, the inclined surface of the wedge block 11 first abuts the moving wheel 7, and the moving wheel 7 presses the wedge block 11 down and enters the contact plate 8. After the wedge block 11 passes the moving wheel 7, the spring 12 drives the wedge block 11 to enter between the moving wheel 7 and the ground, which facilitates the wedge block 11 to fix the moving wheel 7.
[0035] The implementation principle of a maintenance device for a dynamic axial compression column tail in the embodiment of the present application is as follows:
[0036] To disassemble or maintain a dynamic column, move rack 1 directly below the column system and adjust the height of jack 3 so that it just rests against the column base. Then, remove the fastening screws at the column base and depressurize jack 3, allowing the column base to descend along with it. Remove rack 1 to clean and maintain the base. To install the base, move rack 1 below the dynamic column and adjust its position so that it aligns with the base. Then, apply pressure with jack 3 to push the base out and rotate it to align with the mounting holes. Finally, secure it with the fastening screws, depressurize jack 3, and remove rack 1.
[0037] The above are all preferred embodiments of the present application, and are not intended to limit the scope of protection of the present application. Therefore, any equivalent changes made based on the structure, shape, and principle of the present application should be included in the scope of protection of the present application.
Claims
1. A maintenance device for a dynamic axial compression column tail, characterized by: The invention comprises a frame (1) and an operating platform (2) arranged on the frame (1); the operating platform (2) is slidably arranged on the frame (1); the operating platform (2) slides vertically; a driving member for driving the operating platform (2) to slide is arranged on the frame (1); the operating platform (2) is rotatably arranged on the frame (1); the rotation axis of the operating platform (2) is vertically arranged; and the frame (1) is a movable frame.
2. A maintenance device for a dynamic axial compression column tail according to claim 1, characterized in that: The driving component comprises a jack (3) arranged in a frame (1); a piston rod of the jack (3) is arranged vertically; and the operating platform (2) is arranged on an output shaft of the jack (3).
3. The maintenance device for the dynamic axial compression column tail according to claim 2, characterized in that: A mounting plate (4) is provided on the frame (1), the mounting plate (4) is provided on the output shaft of the jack (3), the operating platform (2) is rotatably provided on the mounting plate (4), the operating platform (2) is parallel to the mounting plate (4), and the rotation axis of the operating platform (2) is perpendicular to the mounting plate (4).
4. A maintenance device for a dynamic axial compression column tail according to claim 3, characterized in that: A bearing (5) is embedded on the mounting plate (4), and a connecting rod (6) is fixedly provided on the side of the operating platform (2) facing the mounting plate (4), and the connecting rod (6) is plugged and fixed on the inner ring of the bearing (5).
5. The maintenance device for a dynamic axial compression column tail according to claim 1, characterized in that: The ends of the support legs of the frame (1) are provided with moving wheels (7).
6. The maintenance device for the dynamic axial compression column tail according to claim 5, characterized in that: A contact plate (8) is slidably provided on the support leg of the frame (1), and the contact plate (8) slides along the length direction of the support leg. A notch (9) is provided on the contact plate (8) for the moving wheel (7) to pass through. A moving member is provided on the frame (1), and the moving member is used to drive the contact plate (8) to slide through the moving wheel (7) and abut against the ground.
7. The maintenance device for the dynamic axial compression column tail according to claim 6, characterized in that: The moving part comprises a hydraulic cylinder (10) arranged on a supporting leg, the length direction of the piston rod of the hydraulic cylinder (10) is parallel to the length direction of the supporting leg and faces the moving wheel (7), and the contact plate (8) is fixedly arranged on the piston rod of the hydraulic cylinder (10).
8. The maintenance device for the dynamic axial compression column tail according to claim 6, characterized in that: A wedge block (11) is provided on the contact plate (8) and is located on the side wall of the notch (9) for sliding. The wedge block (11) is used to enter the gap between the ground and the moving wheel (7). An elastic member is provided on the contact plate (8) for driving the wedge block (11) to slide.
9. The maintenance device for a dynamic axial compression column tail according to claim 8, characterized in that: The surface of the wedge block (11) facing the moving wheel (7) is convex toward the moving wheel (7) to form a triangle. When the contact plate (8) drives the wedge block (11) to move downward, the inclined surface on the lower side of the wedge block (11) abuts against the moving wheel (7) to make the wedge block (11) move back into the contact plate (8). After the wedge block (11) passes the moving wheel (7), the wedge block (11) is moved between the moving wheel (7) and the ground and clamps the moving wheel (7).
10. The maintenance device for a dynamic axial compression column tail according to claim 8, characterized in that: The elastic member comprises a spring (12) arranged in the contact plate (8), the spring (12) being parallel to the contact plate (8) and perpendicular to the side wall of the notch (9), one end of the spring (12) being fixedly arranged in the contact plate (8), and the other end being fixedly arranged at the tail of the wedge block (11).