Anti-deviation load clamping hoist with rigid guide column and counter-roller double guide

Abstract

The utility model is specifically related to rigid guide pillar and anti -roll wheel double -guide anti -eccentric load clamping lifting appliance for explosion -proof crane, four rigid guide pillars are fixedly connected with four corners of the bottom of the top seat, the bottom of the top seat is provided with the moving frame, the moving frame goes up and down along four rigid guide pillars, a plurality of fixed pulleys are installed to the top of the moving frame, the bottom of the moving frame is installed with the lifting appliance, the lifting appliance includes two interval fixed track beams, two moving track beams travel on the two fixed track beams, the moving track beam and the fixed track beam are perpendicularly arranged, two vertically arranged moving rigid guide pillars are movably arranged on each moving track beam, two groups of anti -roll wheel devices are arranged on each moving rigid guide pillar.

Description

Technical Field

[0001] This utility model relates to the field of crane lifting devices, specifically to a rigid guide column and anti-eccentric load clamping device for explosion-proof cranes. Background Technology

[0002] Explosion-proof cranes are used in hazardous locations with explosive gas or dust mixtures, requiring them to meet explosion-proof safety standards. A complete crane trolley mainly consists of a trolley frame and a hoisting mechanism. Before assembling the crane trolley, the trolley frame needs to be welded or the main end beams and pulley beams of the trolley frame need to be assembled first. Then, the trolley frame is transferred to the assembly platform using a lifting device, where it is then assembled with the hoisting mechanism. Currently, most trolley frame transfers involve using chains to lift the lifting lugs on the trolley frame and then manually pulling it. This method cannot guarantee the stability of the trolley frame during transport. Due to the weight of the crane and the quality of the chain, the trolley frame is prone to swaying during transport, which can easily lead to chain breakage or collisions with pedestrians. This not only renders the chain unusable and increases the maintenance costs of the trolley frame, but more seriously, it can endanger the lives of workers. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a rigid guide column and anti-eccentric load clamping lifting device for explosion-proof cranes.

[0004] The technical solution of this utility model is implemented as follows: A rigid guide column and anti-eccentric load clamping lifting device for explosion-proof cranes includes a top seat, four rigid guide columns are fixedly connected to the four corners of the bottom of the top seat, a movable frame is provided below the top seat, the movable frame moves up and down along the four rigid guide columns, several fixed pulleys are installed on the top of the movable frame, and a lifting device is installed at the bottom of the movable frame. The lifting device includes two fixed rail beams arranged at intervals, two movable rail beams travel on the two fixed rail beams, the movable rail beams are arranged perpendicular to the fixed rail beams, two vertically arranged movable rigid guide columns are movably arranged on each movable rail beam, and two sets of anti-roller devices are provided on each movable rigid guide column.

[0005] The top and bottom of the fixed track beam are fixedly connected to two spaced-apart tracks. Two rectangular sliding seats are slidably mounted on the tracks. The bottom of each sliding seat is fixedly connected to a vertical beam. Both vertical beams are threaded with horizontally mounted lead screws. The two opposite ends of the two lead screws are connected to the output shaft of a dual-shaft drive reducer. The dual-shaft drive reducer is fixedly connected to the bottom of the fixed track beam.

[0006] Each movable track beam is fixedly connected at both ends between two vertical beams. Each movable track beam is fixedly connected at its top and bottom to two spaced-apart tracks. Two rectangular sliding seats are slidably mounted on the tracks. The sliding seats are located outside the movable track beams. Movable rigid guide posts are fixedly connected to the bottom of the sliding seats.

[0007] Each of the movable rigid guide pillars is threadedly connected to a lead screw. The two opposite ends of the two lead screws are connected to the output shaft of the dual-shaft drive reducer. The dual-shaft drive reducer is fixedly connected to the bottom of the movable track beam.

[0008] Each set of anti-roller devices includes two spaced-apart mounting plates, with a connecting shaft passing through between the two mounting plates. Two spaced-apart anti-roller bracket plates are fitted around the connecting shaft. An anti-roller shaft is set between the two anti-roller bracket plates, and anti-rollers are rotatably connected to the anti-roller shaft via bearings. A crossbeam one is set between the upper parts of the two anti-roller bracket plates, with a threaded rod passing through the crossbeam one. The other end of the threaded rod passes through the crossbeam two. A spring is set between the crossbeam one and the crossbeam two, with the spring fitted around the threaded rod. The crossbeam two is fixedly connected to the side of the anti-roller bracket plate.

[0009] A positioning ring and a friction ring are also fitted onto the connecting shaft.

[0010] The external fixed connections of the four rigid guide pillars are reinforced with a support frame.

[0011] The beneficial effects of this utility model are as follows: The lifting device of this utility model moves up and down along four rigid guide columns. Each rigid guide column is also equipped with two sets of anti-roller devices, which improves the safety and stability of the lifting device and avoids deviation or tilting. The two sets of rollers share the lateral force, which not only effectively reduces the friction loss between the rollers and the guide columns and avoids derailment and rail biting, but also extends the overall service life of the lifting device. The positioning ring ensures that the contact surfaces between the anti-roller and the rigid guide column are always aligned through axial constraint. The four L-shaped support plates hook onto the trolley frame, and the distance between the four L-shaped support plates can be adjusted to clamp the trolley frame, which can realize the lifting of trolley frames of different sizes. Attached Figure Description

[0012] Figure 1 This is a schematic diagram of the structure of this utility model.

[0013] Figure 2 A schematic diagram of the mobile frame.

[0014] Figure 3 A schematic diagram of the anti-guide wheel device.

[0015] Figure 4 A schematic diagram showing the connection between the fixed track beam, the movable track beam, and the movable rigid guide column.

[0016] Reference numerals in the attached diagram: 1. Top seat; 2. Rigid guide column; 3. Moving frame; 4. Fixed pulley; 5. Fixed track beam; 6. Moving track beam; 7. Moving rigid guide column; 8. Track one; 9. Sliding seat one; 10. Vertical beam; 11. Lead screw one; 12. Dual-shaft drive reducer one; 13. Track two; 14. Sliding seat two; 15. Mounting plate; 16. Connecting shaft; 17. Anti-roller frame plate; 18. Anti-roller shaft; 19. Anti-roller; 20. Crossbeam one; 21. Threaded rod; 22. Crossbeam two; 23. Spring; 24. Positioning ring; 25. Friction ring; 26. L-shaped support plate; 31. Lead screw two; 32. Dual-shaft drive reducer two; 33. Reinforced support frame. Detailed Implementation

[0017] like Figure 1-4 As shown, the explosion-proof crane uses a rigid guide column and anti-roller double-guide anti-eccentric load clamping lifting device, which includes a top seat 1. Four rigid guide columns 2 are fixedly connected to the four corners of the bottom of the top seat 1. A movable frame 3 is set below the top seat 1. The movable frame 3 moves up and down along the four rigid guide columns 2. Several fixed pulleys 4 are installed on the top of the movable frame 3. The lifting device is installed at the bottom of the movable frame 3. The lifting device includes two fixed rail beams 5 arranged at intervals. Two movable rail beams 6 travel on the two fixed rail beams 5. The movable rail beams 6 are arranged perpendicular to the fixed rail beams 5. Two vertically arranged movable rigid guide columns 7 are movably arranged on each movable rail beam 6. Two sets of anti-roller devices are set on each movable rigid guide column 7. An L-shaped support plate 26 is set at the bottom of the movable rigid guide column 7.

[0018] Specifically, this device is a lifting device used in conjunction with a crane. This is existing technology and will not be elaborated further here. The fixed pulley 4 is connected to the wire rope of the crane's lifting mechanism. The lifting of the wire rope drives the moving frame 3 to rise and fall. The moving frame 3 moves along four rigid guide columns 2 to avoid deviation or tilting. The trolley frame to be lifted is lifted by the L-shaped support plate 26 at the bottom of the moving rigid guide column 7. The two moving rigid guide columns 7 can move horizontally relative to each other or backwards on the same moving track beam 6. The moving track beam 6 moves forward and backward relative to each other or backwards along the fixed track beam 5, thereby achieving the difficult horizontal and forward and backward adjustment of the L-shaped support plate 26, realizing the lifting of trolley frames of different sizes.

[0019] The top and bottom of the fixed track beam 5 are fixedly connected to two spaced tracks 8. Two rectangular sliding seats 9 are slidably mounted on the tracks 8. The bottom of each sliding seat 9 is fixedly connected to a vertical beam 10. A movable track beam 6 is fixed between the two vertical beams 10 located on the two fixed track beams 5. The two vertical beams 10 are threaded with horizontally mounted lead screws 11. The opposite ends of the two lead screws 11 are connected to the output shaft of the dual-shaft drive reducer 12. The opposing ends of the lead screws 11 are rotatably connected to end plates. The end plates are fixedly connected to both ends of the fixed track beam 5. The dual-shaft drive reducer 12 is fixedly connected to the bottom of the fixed track beam 5.

[0020] Specifically, such as Figure 2 As shown, the two ends of the fixed track beam 5 are fixedly connected to the vertically arranged channel steel, and the channel steel is fixedly connected to the two ends of the horizontal column of the movable frame 3. The dual-shaft drive reducer 12 starts and drives the lead screws 11 on both sides to rotate, so that the two vertical beams 10 move relative to each other or move away from each other, thereby driving the movable track beam 6 fixed to it to move accordingly.

[0021] Each movable track beam 6 has two spaced-apart tracks 13 fixedly connected to its top and bottom. Two rectangular sliding seats 14 are slidably mounted on the tracks 13. The sliding seats 14 are located outside the movable track beam 6. Movable rigid guide posts 7 are fixedly connected to the bottom of the sliding seats 14. Each movable rigid guide post 7 is connected to a lead screw 31. The two opposite ends of the two lead screws 31 are connected to the output shaft of the dual-shaft drive reducer 32. The dual-shaft drive reducer 32 is fixedly connected to the bottom of the movable track beam 6.

[0022] Specifically, the dual-shaft drive reducer 32 starts, driving the lead screw 31 to rotate, which in turn drives the movable rigid guide column 7 to move relative to or away from each other. The ends of the two lead screws 31 that are opposite to each other are rotatably connected to the end plate, and the end plate is fixed at both ends of the movable track beam 6.

[0023] Each set of anti-roller devices includes two spaced mounting plates 15, with a connecting shaft 16 passing between the two mounting plates 15. Two spaced anti-roller bracket plates 17 are fitted around the connecting shaft 16. The anti-roller bracket plates 17 can rotate around the connecting shaft 16. An anti-roller shaft 18 is provided between the two anti-roller bracket plates 17. An anti-roller 19 is rotatably connected to the anti-roller shaft 18 via a bearing. The anti-roller 19 contacts the side of its adjacent rigid guide post 2. A crossbeam 20 is provided between the upper parts of the two anti-roller bracket plates 17. A threaded rod 21 passes through the crossbeam 20. The other end of the threaded rod 21 passes through the crossbeam 22. A nut is fixedly connected to the threaded rod 21. The nut is located on the side of the crossbeam 22. A spring 23 is provided between the crossbeam 20 and the crossbeam 22. The spring 23 is fitted around the threaded rod 21. The crossbeam 22 is fixedly connected to the side of the anti-roller bracket plate 17.

[0024] Specifically, such as Figure 2 and 3 As shown, the mounting plate 15 is fixed on the mounting base, which is fixed on the side of the movable frame 3. A rigid guide column is equipped with two sets of anti-roller devices, and the two sets of anti-roller devices are arranged in a 90° cross layout. The two sets of rollers share the lateral force, which not only effectively reduces the friction loss between the rollers and the guide column and avoids derailment and rail biting, but also extends the overall service life of the lifting device.

[0025] A positioning ring 24 and a friction ring 25 are also fitted on the connecting shaft 16. Specifically, the positioning ring 24 is interference-fitted with the connecting shaft 16. The positioning ring 24 ensures that the contact surfaces between the anti-roller 19 and the rigid guide post 2 are always aligned by axial constraint. The opening of the friction ring 25 is fixed to the outside of the connecting shaft 16 by bolts, and the end of the friction ring 25 is fixedly connected to the mounting plate 15 by bolts, thereby fixing the connecting shaft 16 to prevent rotation.

[0026] The four rigid guide pillars 2 are externally fixedly connected by a reinforced support frame 33; specifically, the reinforced support frame 33 increases the stability of the four rigid guide pillars 2.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A rigid guide column and anti-roller double-guide anti-eccentric load clamping lifting device for explosion-proof cranes, comprising a top base, wherein four rigid guide columns are fixedly connected to the four corners of the bottom of the top base, characterized in that: A movable frame is installed below the top base. The movable frame moves up and down along four rigid guide columns. Several fixed pulleys are installed on the top of the movable frame, and a lifting device is installed at the bottom of the movable frame. The lifting device includes two fixed track beams that are spaced apart. Two movable track beams travel on the two fixed track beams. The movable track beams are perpendicular to the fixed track beams. Two vertically arranged movable rigid guide columns are movably installed on each movable track beam. Two sets of anti-roll wheel devices are installed on each movable rigid guide column.

2. The rigid guide column and anti-eccentric load clamping device for explosion-proof cranes according to claim 1, characterized in that: The top and bottom of the fixed track beam are fixedly connected to two spaced-apart tracks. Two rectangular sliding seats are slidably mounted on the tracks. The bottom of each sliding seat is fixedly connected to a vertical beam. Both vertical beams are threaded with horizontally mounted lead screws. The two opposite ends of the two lead screws are connected to the output shaft of a dual-shaft drive reducer. The dual-shaft drive reducer is fixedly connected to the bottom of the fixed track beam.

3. The rigid guide column and anti-eccentric load clamping device for explosion-proof cranes according to claim 1, characterized in that: Each movable track beam is fixedly connected at both ends between two vertical beams. Each movable track beam is fixedly connected at its top and bottom to two spaced-apart tracks. Two rectangular sliding seats are slidably mounted on the tracks. The sliding seats are located outside the movable track beams. Movable rigid guide posts are fixedly connected to the bottom of the sliding seats.

4. The rigid guide column and anti-eccentric load clamping device for explosion-proof cranes according to claim 3, characterized in that: Each of the movable rigid guide pillars is threadedly connected to a lead screw. The two opposite ends of the two lead screws are connected to the output shaft of the dual-shaft drive reducer. The dual-shaft drive reducer is fixedly connected to the bottom of the movable track beam.

5. The rigid guide column and anti-eccentric load clamping device for explosion-proof cranes according to claim 3, characterized in that: Each set of anti-roller devices includes two spaced-apart mounting plates, with a connecting shaft passing through between the two mounting plates. Two spaced-apart anti-roller bracket plates are fitted around the connecting shaft. An anti-roller shaft is set between the two anti-roller bracket plates, and anti-rollers are rotatably connected to the anti-roller shaft via bearings. A crossbeam one is set between the upper parts of the two anti-roller bracket plates, with a threaded rod passing through the crossbeam one. The other end of the threaded rod passes through the crossbeam two. A spring is set between the crossbeam one and the crossbeam two, with the spring fitted around the threaded rod. The crossbeam two is fixedly connected to the side of the anti-roller bracket plate.

6. The rigid guide column and anti-eccentric load clamping device for explosion-proof cranes according to claim 3, characterized in that: A positioning ring and a friction ring are also fitted onto the connecting shaft.

7. The rigid guide column and anti-eccentric load clamping device for explosion-proof cranes according to claim 3, characterized in that: The external fixed connections of the four rigid guide pillars are reinforced with a support frame.

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