Catalyst lifting device
By designing a catalyst lifting device with a fixed frame, guide rail, and sliding wheel structure, the problems of small size, low load capacity, and poor safety of existing devices have been solved, achieving efficient and safe catalyst lifting and reducing costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- NORTHERN COPPER CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-06-05
AI Technical Summary
Existing catalyst lifting devices are small in size, have low load capacity, low working efficiency, pose safety hazards, and are costly, making them unable to meet the overhaul needs of sulfuric acid conversion systems.
A catalyst lifting device was designed, comprising a fixed frame, guide rails, pulleys, traction ropes, and a winch. The steel pipe guide rails are connected by double-headed pins, and the pulleys form conformal contact with the guide rails. The lifting frame is equipped with a movable door to ensure stability and safety.
It improves work efficiency, reduces costs, ensures safety, prevents equipment shaking and material falling, and facilitates maintenance.
Smart Images
Figure CN224325084U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of lifting equipment technology, specifically relating to a catalyst lifting device. Background Technology
[0002] The sulfuric acid conversion system requires the replacement of 80 tons of coal during its annual overhaul. Coal is a chemical catalyst. The lifting height is large and the working space is small. The previous lifting devices were small in size, had low load capacity, low work efficiency, long working hours, no fixed slide, and large left and right swing of the lifting frame, which often resulted in collisions, tilting and falling, which was unsafe. A complete set of lifting equipment on the market costs hundreds of thousands of yuan, which is too expensive. Utility Model Content
[0003] The purpose of this invention is to solve the above-mentioned technical problems and provide a catalyst lifting device.
[0004] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:
[0005] A catalyst lifting device includes a fixed frame structure, two sets of symmetrically distributed guide rail structures, four sliding wheel structures, a traction rope, a fixed pulley block, and a winch.
[0006] The fixed frame structure includes a base plate, a support frame, and lifting lugs. The support frame is a 'door' shaped structure and is vertically fixed in the middle of the top surface of the base plate. The lifting lugs are fixed in the middle of the crossbeam of the support frame. Several sets of first bolt holes are evenly opened on the vertical beam of the support frame.
[0007] The guide rail structure includes several guide rails and connecting pins. The guide rails are made of steel pipes. The connecting pins are cylinders with the same inner diameter as the guide rails and have a boss in the middle. The diameter of the boss is the same as the outer diameter of the guide rail. The two ends of the connecting pins are inserted into the basic holes of the guide rails for interference fit. Several guide rails are connected to form a guide rail structure. Two sets of the guide rail structures are respectively set on both sides of the vertical beam of the support frame, and the lower end passes through the base plate and inserts into the ground.
[0008] The sliding wheel structure includes a sliding wheel bracket, two sliding wheel fixing frames, and two sliding wheels. The sliding wheel bracket has a set of second bolt holes in the middle. The two sliding wheel fixing frames are U-shaped with their openings facing each other at both ends of the sliding wheel bracket. The sliding wheel fixing frames have sliding wheel shaft holes. The two sliding wheels are respectively mounted on the two sliding wheel fixing frames through sliding wheel shafts. The sliding wheels adopt a concave arc profile structure. The two sliding wheels respectively form conformal contact with two guide rail structures on the same side. The several sets of sliding wheel structures are fixed to the vertical beam of the support frame through first bolt holes, second bolt holes, and bolts.
[0009] The fixed pulley block is mounted on a support structure above the fixed frame structure. One end of the traction rope is connected to the lifting lug, and the other end passes around the fixed pulley block and is connected to the winch.
[0010] Furthermore, lifting frames are provided on both sides of the support frame and on the bottom plate.
[0011] Furthermore, movable doors are provided on both sides of the lifting frame.
[0012] Furthermore, several transverse reinforcing ribs are evenly arranged vertically between the guide rail structures on the same side, and a crossbeam is fixed outward from the middle of the reinforcing ribs. The other end of the crossbeam is fixedly connected to the support frame that is rigidly connected to the building's load-bearing structure.
[0013] Furthermore, the ratio of the concave arc radius of the sliding wheel to the outer diameter of the guide rail is 1.05-1.15.
[0014] Compared with the prior art, the beneficial effects of this utility model are:
[0015] 1. The guide rail structure of this utility model adopts steel pipe connected by double-ended pins. The double-ended pins and the guide rail are fitted with a basic hole system, which can not only ensure the connection strength, but also make the guide rail connection point flat with the outer wall of the steel pipe without protrusions, so that the sliding wheel and the outer cylindrical surface of the guide rail form continuous pure rolling contact and the rolling is smooth.
[0016] 2. The concave arc profile of the sliding wheel of this utility model forms a conformal contact with the outer cylindrical surface of the guide rail. By constraining the kinematic pair, a single degree of freedom pure rolling constraint is achieved, which improves the rigidity of the motion system and prevents swaying during lifting.
[0017] 3. The lifting frame of this utility model can prevent materials from falling, and the movable door can facilitate the loading and unloading of materials;
[0018] 4. This utility model has low manufacturing cost, is easy to maintain, safe and reliable, and has high work efficiency. Attached Figure Description
[0019] Figure 1 This is a schematic diagram of the structure of this utility model;
[0020] Figure 2 This is a schematic diagram of the fixing frame structure of this utility model;
[0021] Figure 3 This is a schematic diagram of the guide rail connection structure of this utility model;
[0022] Figure 4 This is a schematic diagram of the sliding wheel bracket structure of this utility model;
[0023] Figure 5 This is a schematic diagram of the sliding wheel and guide rail cooperation structure of this utility model;
[0024] In the diagram: 1-Base plate, 2-Support frame, 3-Lifting lug, 4-First bolt hole, 5-Guide rail structure, 6-Reinforcing rib, 7-Lifting frame; 8-Traction rope; 9-Fixed pulley block; 10-Winder; 11-Pulley bracket; 12-Second bolt hole; 13-Pulley fixing frame; 14-Pulley axle hole; 15-Pulley; 16-Moving door;
[0025] 5.1 - Guide rail; 5.2 - Connecting pin. Detailed Implementation
[0026] The present invention will be further described below with reference to the embodiments and accompanying drawings.
[0027] like Figure 1-5 As shown, a catalyst lifting device includes a fixed frame structure, two sets of symmetrically distributed guide rail structures 5, four sliding wheel structures, a traction rope 8, a fixed pulley group 9, and a winch 10.
[0028] The fixed frame structure includes a base plate 1, a support frame 2, and lifting lugs 3. The support frame 2 is a "door" shaped structure and is vertically fixed in the middle of the top surface of the base plate 1. The lifting lugs 3 are fixed in the middle of the crossbeam of the support frame 2. Several sets of first bolt holes 4 are evenly opened on the vertical beam of the support frame 2. Lifting frames 7 are provided on both sides of the support frame 2 and on the base plate 1. Movable doors 16 are provided on both sides of the lifting frames 7.
[0029] The guide rail structure 5 includes several guide rails 5.1 and connecting pins 5.2. The guide rails 5.1 are made of steel pipes. The connecting pins 5.2 are cylinders with the same inner diameter as the guide rails 5.1, and have a boss in the middle. The diameter of the boss is the same as the outer diameter of the guide rails 5.1. The two ends of the connecting pins 5.2 are inserted into the basic holes in the guide rails 5.1 with an interference fit. Several guide rails 5.1 are connected to form the guide rail structure 5. Several transverse reinforcing ribs 6 are evenly arranged vertically between the guide rail structures 5 on the same side. A crossbeam is fixed outward from the middle of the reinforcing ribs 6. The other end of the crossbeam is fixedly connected to the support frame that is rigidly connected to the building's load-bearing structure. The two sets of guide rail structures 5 are respectively set on both sides of the vertical beam of the support frame 2, and the lower end passes through the base plate 1 and is inserted into the ground. The guide rail structure is made of steel pipe connected by double-headed pins. The double-headed pins and the guide rail are fitted with a basic hole system, which can not only ensure the connection strength, but also make the guide rail connection flat with the outer wall of the steel pipe without protrusions, so that the sliding wheel and the outer cylindrical surface of the guide rail form a continuous pure rolling contact and the rolling is smooth.
[0030] The sliding wheel structure includes a sliding wheel bracket 11, two sliding wheel fixing frames 13, and two sliding wheels 15. The sliding wheel bracket 11 has a set of second bolt holes 12 in the middle. The two sliding wheel fixing frames 13 are U-shaped structures with their openings facing each other at both ends of the sliding wheel bracket 11. The sliding wheel fixing frames 13 have sliding wheel shaft holes 14. The two sliding wheels 15 are respectively mounted on the two sliding wheel fixing frames 13 through sliding wheel shafts. The sliding wheels 15 adopt a concave arc profile structure. The two sliding wheels 15 form conformal contact with the two guide rail structures 5 on the same side, and the ratio of the concave arc radius of curvature of the sliding wheel 15 to the outer diameter of the guide rail is 1.10. The several sets of sliding wheel structures are fixed to the vertical beam of the support frame 2 through the first bolt hole 4, the second bolt hole 12, and bolts.
[0031] The fixed pulley block 9 is mounted on a support structure above the fixed frame structure. One end of the traction rope 8 is connected to the lifting lug 3, and the other end passes around the fixed pulley block 9 and is connected to the winch 10.
[0032] The ratio of the concave arc radius of curvature of the sliding wheel 15 to the outer diameter of the guide rail can also be any value between 1.05 and 1.15.
[0033] When using this utility model, firstly, the winch 10 lowers the traction rope 8 to bring the base plate 1 to the ground. Then, the movable door 16 is opened to transfer the catalyst to be lifted into the lifting frame 7. The movable door 16 is closed, and the winch 10 is turned on again to retract the traction rope 8. The traction rope 8 lifts the utility model through the lifting lug 3. The sliding wheel 15 slides upward along the guide rail structure 5, so that the arc of the sliding wheel 15 fits with the outer circle of the rail, restricting the lifting frame to only one degree of freedom, thereby preventing the equipment from shaking.
[0034] After the lifting is completed, the traction rope 8 is lowered by the winch 10 to bring the device to the ground, and it can then be used again.
Claims
1. A catalyst lifting device, characterized in that, It includes a fixed frame structure, two sets of symmetrically distributed guide rail structures (5), four sliding wheel structures, traction rope (8), fixed pulley group (9) and winch (10); The fixed frame structure includes a base plate (1), a support frame (2) and a lifting lug (3). The support frame (2) is a 'door' shaped structure and is vertically fixed in the middle of the top surface of the base plate (1). The lifting lug (3) is fixed in the middle of the crossbeam of the support frame (2). Several sets of first bolt holes (4) are evenly opened on the vertical beam of the support frame (2). The guide rail structure (5) includes several guide rails (5.1) and connecting pins (5.2). The guide rails (5.1) are made of steel pipes. The connecting pins (5.2) are cylinders with the same inner diameter as the guide rails (5.1) and have a boss in the middle. The diameter of the boss is the same as the outer diameter of the guide rails (5.1). The two ends of the connecting pins (5.2) are inserted into the basic holes of the guide rails (5.1) for interference fit. Several guide rails (5.1) are connected to form the guide rail structure (5). The two sets of the guide rail structures (5) are respectively set on both sides of the vertical beam of the support frame (2), and the lower end passes through the bottom plate (1) and is inserted into the ground. The sliding wheel structure includes a sliding wheel bracket (11), two sliding wheel fixing frames (13), and two sliding wheels (15). The sliding wheel bracket (11) has a set of second bolt holes (12) in the middle. The two sliding wheel fixing frames (13) are U-shaped structures with their openings facing each other at both ends of the sliding wheel bracket (11). The sliding wheel fixing frames (13) have sliding wheel shaft holes (14). The two sliding wheels (15) are respectively mounted on the two sliding wheel fixing frames (13) through sliding wheel shafts. The sliding wheels (15) adopt a concave arc profile structure. The two sliding wheels (15) respectively form conformal contact with the two guide rail structures (5) on the same side. The several sets of sliding wheel structures are fixed on the vertical beam of the support frame (2) through the first bolt hole (4), the second bolt hole (12), and bolts. The fixed pulley block (9) is set on the support structure above the fixed frame structure. One end of the traction rope (8) is connected to the lifting lug (3), and the other end passes around the fixed pulley block (9) and is connected to the winch (10).
2. The catalyst lifting device according to claim 1, characterized in that, Lifting frames (7) are provided on both sides of the support frame (2) and on the base plate (1).
3. The catalyst lifting device according to claim 2, characterized in that, Movable doors (16) are provided on both sides of the lifting frame (7).
4. The catalyst lifting device according to claim 1, characterized in that, Several transverse reinforcing ribs (6) are evenly arranged vertically between the guide rail structures (5) on the same side. A crossbeam is fixed outward in the middle of the reinforcing ribs (6), and the other end of the crossbeam is fixedly connected to the support frame that is rigidly connected to the building's load-bearing structure.
5. A catalyst lifting device according to claim 1, characterized in that, The ratio of the concave arc radius of the sliding wheel (15) to the outer diameter of the guide rail is 1.05-1.15.