Mechanical seal hoisting with electric single-beam crane

Abstract

The utility model discloses a kind of mechanical sealing piece hoisting electric single-beam crane, it is related to electric single-beam crane technical field, including a pair of support frame, the upper end of a pair of support frame is commonly fixed with crossbeam, slidingly set up frame on crossbeam, frame bottom surface is fixedly set up with movable rack, movable rack is rotatably set up with cylinder, screw is rotatably set up between a pair of support frame, screw is screw-connected in cylinder, gear is fixedly set up on cylinder side surface, fixedly set up with fixed arm in movable rack, slidingly set up with first guide rod in fixed arm, rack is fixedly set up on the upper end of first guide rod, a pair of support frame are mutually fixed and installed with electric telescopic rod and shock absorber, the utility model can make cylinder remove positioning by rack away from gear, so that cylinder idles with screw, screw rotation no longer provides driving force for movable rack, under the double effect of shock absorber and buffer pad, movable rack stops, avoid movable rack and support frame collision to make equipment damaged.

Description

Technical Field

[0001] This utility model relates to the technical field of electric single-girder cranes, specifically to an electric single-girder crane for lifting mechanical seal components. Background Technology

[0002] After mechanical seals are manufactured and packaged, they need to be lifted by a crane. Cranes are widely used for lifting goods in various situations. For example, utility model patent CN211945979U discloses a stable-running electric single-girder crane, which includes two support columns. Two side plates on the same horizontal line are welded to the top of the outer wall of the two adjacent support columns. A slide rail is opened on the top outer wall of the side plates, and a groove is opened at the center of the outer wall of the adjacent side plates. A traveling platform is movably connected between the two side plates. A boss is welded to the center of the bottom outer wall of the traveling platform, and a slider is welded to the center of the outer wall on both sides of the boss. Rollers with an equidistant structure are movably connected to the top and bottom outer walls of the sliders through a rotating shaft. However, this crane cannot provide protection during operation, which leads to collisions with the equipment during movement and damage to the equipment. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides an electric single-girder crane for lifting mechanical seals, which solves the technical problem that existing cranes cannot provide protection during operation, leading to collisions and damage to the equipment during movement.

[0004] To achieve the above objectives, this utility model provides the following technical solution: an electric single-girder crane for lifting mechanical seals, comprising a pair of support frames, a crossbeam fixedly mounted on the upper end of the pair of support frames, a frame slidably mounted on the crossbeam, a movable frame fixedly mounted on the bottom surface of the frame, an electric hoist mounted on the bottom surface of the movable frame, a cylinder rotatably mounted inside the movable frame, a screw rotatably mounted between the pair of support frames, the screw threadedly connected to the cylinder, a gear fixedly mounted on the side surface of the cylinder, a fixed arm fixedly mounted inside the movable frame, and a slidable mechanism within the fixed arm... A first guide rod is provided, with a rack fixedly installed at its upper end, the rack meshing with a gear. A pulley is installed at the lower end of the first guide rod. A second guide rod is slidably arranged inside the movable frame. A trapezoidal boss is fixedly installed on the upper surface of the second guide rod, the top surface of the trapezoidal boss contacting the pulley. A fixing block is fixedly installed at the center of the bottom surface of the second guide rod. Tension springs are fixedly connected to both sides of the fixing block, and the other end of the tension springs is fixedly connected to the inner surface of the movable frame. An electric telescopic rod and a shock absorber are fixedly installed on the opposing surfaces of a pair of support frames. A buffer plate is fixedly installed at one end of the shock absorber.

[0005] Preferably, a servo motor is fixedly mounted on one side surface of the support frame, and one end of the screw passes through the support frame and is fixedly connected to the drive shaft of the servo motor.

[0006] Preferably, a plurality of support wheels are fixedly installed on the top surface of the frame, and the support wheels are in contact with the top surface of the crossbeam.

[0007] Preferably, a plurality of guide wheels are fixedly installed on the inner surface of the frame, and the guide wheels are in contact with the side surface of the crossbeam.

[0008] Preferably, a buffer pad is fixedly provided on one end face of the buffer plate.

[0009] Beneficial effects:

[0010] This utility model provides a method for lifting mechanical seal components using an electric single-girder crane, which has the following advantages:

[0011] The electric hoist can lift the items. When the movable frame moves towards the support frame, the second guide rod first contacts the end of the electric telescopic rod. Under the obstruction of the electric telescopic rod, the second guide rod will move laterally relative to the movable frame, thereby causing the trapezoidal boss to move laterally relative to the pulley, causing the pulley to fall onto the upper surface of the second guide rod. The falling pulley can cause the rack to move away from the gear. The rack moving away from the gear can cause the cylinder to be released from its positioning, allowing the cylinder to rotate freely with the screw. At this time, the screw rotation no longer provides driving force to the movable frame. Then, the movable frame, which has lost its driving force, will continue to move by inertia and come into contact with the buffer pad. Under the dual action of the shock absorber and the buffer pad, the movable frame stops, preventing the movable frame from colliding with the support frame and damaging the equipment. Attached Figure Description

[0012] Figure 1 This is the front view of the present invention;

[0013] Figure 2 for Figure 1 Enlarged diagram of A in the middle;

[0014] Figure 3 This is a side view of the rack in this utility model;

[0015] Figure 4 This is a side view of the frame in this utility model;

[0016] Figure 5 This is a side view of the support frame in this utility model.

[0017] In the diagram: 1. Support frame; 2. Frame; 3. Crossbeam; 4. Screw; 5. Servo motor; 6. Electric hoist; 7. Gear; 8. Cylinder; 9. Guide wheel; 10. Rack; 11. First guide rod; 12. Pulley; 13. Trapezoidal boss; 14. Second guide rod; 15. Tension spring; 16. Support wheel; 17. Electric telescopic rod; 18. Shock absorber; 19. Buffer plate; 20. Buffer pad; 21. Fixed arm; 22. Movable frame; 23. Fixed block. Detailed Implementation

[0018] The technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments.

[0019] Please see Figures 1-5 This utility model provides a technical solution: an electric single-girder crane for lifting mechanical seals, including a pair of support frames 1, a crossbeam 3 fixedly mounted on the upper end of the pair of support frames 1, a frame 2 slidably mounted on the crossbeam 3, a movable frame 22 fixedly mounted on the bottom surface of the frame 2, an electric hoist 6 mounted on the bottom surface of the movable frame 22, a cylinder 8 rotatably mounted inside the movable frame 22, a screw 4 rotatably mounted between the pair of support frames 1, a screw 4 threadedly connected to the cylinder 8, a gear 7 fixedly mounted on the side surface of the cylinder 8, a fixed arm 21 fixedly mounted inside the movable frame 22, a first guide rod 11 slidably mounted inside the fixed arm 21, a rack 10 fixedly mounted on the upper end of the first guide rod 11, the rack 10 meshing with the gear 7, a pulley 12 mounted on the lower end of the first guide rod 11, a second guide rod 14 slidably mounted inside the movable frame 22, the second guide rod 14... 4. A trapezoidal boss 13 is fixedly installed on the upper surface. The top surface of the trapezoidal boss 13 contacts the pulley 12. A fixing block 23 is fixedly installed at the center of the bottom surface of the second guide rod 14. Tension springs 15 are fixedly connected to both sides of the fixing block 23. The other end of the tension springs 15 is fixedly connected to the inner surface of the movable frame 22. Electric telescopic rods 17 and shock absorbers 18 are fixedly installed on the opposing surfaces of a pair of support frames 1. A buffer plate 19 is fixedly installed at one end of the shock absorber 18. A servo motor 5 is fixedly installed on one side surface of the support frame 1. One end of the screw 4 passes through the support frame 1 and is fixedly connected to the drive shaft of the servo motor 5. Multiple support wheels 16 are fixedly installed on the top surface of the inner frame 2. The support wheels 16 contact the top surface of the crossbeam 3. Multiple guide wheels 9 are fixedly installed on the inner surface of the frame 2. The guide wheels 9 contact the side surface of the crossbeam 3. A buffer pad 20 is fixedly installed on one end face of the buffer plate 19.

[0020] Those skilled in the art should electrically connect all electrical components in this case to their compatible power supplies, and should select appropriate controllers according to actual conditions to meet control requirements. The specific connection and control sequence should refer to the working sequence of each electrical component in the following working principle to complete the electrical connection. The detailed connection methods are well-known technologies in the art. The following mainly introduces the working principle and process, and will not explain the electrical control.

[0021] Example: According to the appendix of the instruction manual Figures 1-5 It can be seen that during use, the electric hoist 6 can lift the item, the servo motor 5 can drive the screw 4 to rotate, the screw 4 can drive the cylinder 8 to move laterally, the cylinder 8 can drive the movable frame 22 to move laterally, and the movable frame 22 can drive the electric hoist 6 to move laterally. When the movable frame 22 moves towards the support frame 1, the second guide rod 14 first contacts the end of the electric telescopic rod 17. Under the obstruction of the electric telescopic rod 17, the second guide rod 14 will move laterally relative to the movable frame 22, thereby causing the trapezoidal boss 13 to move laterally relative to the pulley 12, so that the pulley 12 falls to the upper surface of the second guide rod 14. The falling of the pulley 12 can cause the rack 10 to move away from the gear 7. The rack 10 moving away from the gear 7 can cause the cylinder 8 to be released from its position, so that the cylinder 8 follows the screw 4 to rotate freely. At this time, the rotation of the screw 4 no longer provides driving force to the movable frame 22. Then, the movable frame 22, which has lost driving force, will... The device continues to move due to inertia and comes into contact with the buffer pad 20. Under the combined action of the shock absorber 18 and the buffer pad 20, the movable frame 22 stops, preventing the movable frame 22 from colliding with the support frame 1 and causing damage to the equipment. After the collision crisis is resolved, the electric telescopic rod 17 is shortened, which can move the telescopic end of the electric telescopic rod 17 away from the second guide rod 14. At this time, under the tension of the tension spring 15, the fixed block 23, the second guide rod 14 and the trapezoidal boss 13 can be reset. After the trapezoidal boss 13 is reset, the pulley 12 is lifted, so that the pulley 12 is back on the top surface of the trapezoidal boss 13, so that the rack 10 can move upward and mesh with the gear 7. The meshing of the rack 10 and the gear 7 can position the cylinder 8. Then, the servo motor 5 reverses and drives the screw 4 to rotate in the opposite direction. The reverse rotation of the screw 4 can move the cylinder 8 away from the support frame 1. The cylinder 8 moving away from the support frame 1 can move the movable frame 22 away from the support frame 1, and the support frame 1 restores the driving force of the screw 4.

[0022] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An electric single-girder crane for lifting mechanical seals, comprising a pair of support frames (1), wherein a crossbeam (3) is fixedly mounted on the upper end of the pair of support frames (1), characterized in that, A frame (2) is slidably mounted on the crossbeam (3). A movable frame (22) is fixedly mounted on the bottom surface of the frame (2). An electric hoist (6) is installed on the bottom surface of the movable frame (22). A cylinder (8) is rotatably mounted inside the movable frame (22). A screw (4) is rotatably mounted between a pair of support frames (1). The screw (4) is threadedly connected to the cylinder (8). A gear (7) is fixedly mounted on the side surface of the cylinder (8). A fixed arm (21) is fixedly mounted inside the movable frame (22). A first guide rod (11) is slidably mounted inside the fixed arm (21). A rack (10) is fixedly mounted on the upper end of the first guide rod (11). The rack (10) meshes with the gear (7). A pulley (12) is installed at the lower end of the first guide rod (11). A second guide rod (14) is slidably arranged inside the movable frame (22). A trapezoidal boss (13) is fixedly arranged on the upper surface of the second guide rod (14). The top surface of the trapezoidal boss (13) contacts the pulley (12). A fixing block (23) is fixedly arranged at the center of the bottom surface of the second guide rod (14). Tension springs (15) are fixedly connected on both sides of the fixing block (23). The other end of the tension spring (15) is fixedly connected to the inner surface of the movable frame (22). An electric telescopic rod (17) and a shock absorber (18) are fixedly installed on the opposing surfaces of a pair of support frames (1). A buffer plate (19) is fixedly arranged at one end of the shock absorber (18).

2. The electric single-girder crane for lifting mechanical seals according to claim 1, characterized in that, A servo motor (5) is fixedly installed on one side surface of the support frame (1), and one end of the screw (4) passes through the support frame (1) and is fixedly connected to the drive shaft of the servo motor (5).

3. The electric single-girder crane for lifting mechanical seals according to claim 1, characterized in that, Multiple support wheels (16) are fixedly installed on the top surface of the inner frame (2), and the support wheels (16) are in contact with the top surface of the crossbeam (3).

4. The electric single-girder crane for lifting mechanical seals according to claim 1, characterized in that, Multiple guide wheels (9) are fixedly installed on the inner surface of the frame (2), and the guide wheels (9) are in contact with the side surface of the crossbeam (3).

5. The electric single-girder crane for lifting mechanical seals according to claim 1, characterized in that, A buffer pad (20) is fixedly provided on one end face of the buffer plate (19).

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