Guide wheel and overspeed protection synchronous adjusting device for cargo carrying table of double-stand-column stacking machine

Abstract

The utility model discloses a guide wheel and overspeed protection synchronous adjusting device for a cargo carrying platform of a double-column stacker, which comprises a cargo carrying platform frame and two columns, both sides of the top of the cargo carrying platform frame are fixedly connected with support frames, the inner walls of the tops of the support frames are rotatably connected with first guide wheels, the first guide wheels are in contact with one sides of the columns, and the first guide wheels are in contact with the other sides of the columns. A plurality of eccentric wheel shafts are arranged on one side of the supporting frame, second guide wheels are arranged at one ends of the eccentric wheel shafts, the second guide wheels make contact with the other two opposite sides of the stand column, safety tongs are connected to one ends of the eccentric shafts in a sleeved mode, a rotating shaft is rotatably connected between the two safety tongs in an inserted mode, and two rotating arms are fixedly connected to the outer wall of the rotating shaft. The gap between the safety tongs and the stand column is adjusted through the eccentric wheel shaft and the second guide wheel, so that the gaps between the four wedge-shaped calipers and the stand column are consistent, and the potential falling risk that the safety tongs cannot clamp the goods when the goods carrying table of the stacking machine is in the stall state is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of stackers, in particular to a synchronous adjustment device for guide wheels and overspeed protection of a cargo platform of a double-column stacker. Background Art

[0002] Currently, stackers in vertical warehousing primarily consist of upper and lower beams, columns, a horizontal travel mechanism, a lifting mechanism, a loading platform, forks, overspeed protection, and an electromechanical control system. The loading platform, in conjunction with the lifting mechanism, achieves vertical movement on the columns via a guide device. Because the loading platform frame is welded, and the guide column tracks are constructed of rectangular tubes over 30 meters tall, their straightness and installation accuracy cannot be guaranteed.

[0003] During the overspeed protection process of the existing stacker crane loading platform, the wedge-shaped caliper on the safety clamp cannot be clamped at the same time. When the guide device is met, the gap between the matching safety clamp and the guide rail is very likely to be larger on one side and smaller on the other side, which cannot serve as a safety brake and causes the vehicle loading platform to drop rapidly, damaging equipment or causing casualties. Utility Model Content

[0004] The purpose of the utility model is to solve the problem that during the overspeed protection process of the existing stacker crane loading platform, the wedge-shaped calipers on the safety clamps cannot be clamped at the same time, and when the guide device is satisfied, the gap between the matching safety clamps and the guide rails is very likely to be large on one side and small on the other side, which cannot serve as a safety brake and causes the vehicle loading platform to fall rapidly, resulting in damage to equipment or casualties. A double-column stacker crane loading platform guide wheel and overspeed protection synchronous adjustment device is proposed.

[0005] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0006] Material toggling mechanism, its both sides respectively have a cylinder pressure, and the cylinder pressure bar connects swing arm, and the swing arm end face has hook portion, and a bar passes position between the end of two swing arms and the hook portion.

[0007] Furthermore, a protective cover is fixedly connected to one side of the cargo platform frame, and the protective cover covers the outside of the synchronization shaft.

[0008] Furthermore, a mounting bracket is fixedly connected to one side of the support frame, a sliding rod is slidably inserted into the bottom of the mounting bracket, a buffer spring is sleeved on the bottom end of the sliding rod, and a pulling rope is fixed to the top end of the sliding rod.

[0009] Furthermore, the pulling rope is a steel wire rope.

[0010] Furthermore, one end of the buffer spring is fixedly connected to the mounting bracket.

[0011] The beneficial effects of the utility model are:

[0012] 1. The gap between the safety clamp and the column is adjusted by the eccentric wheel shaft and the second guide wheel, so that the gap between the four wedge-shaped clamps and the column is consistent, thereby avoiding the potential risk of the safety clamp failing to clamp when the stacker loading platform stalls.

[0013] 2. The speed limiter drives the active clamping bracket to rotate, thereby driving the rotating arm and the wedge-shaped caliper to rotate through the rotating shaft, so that the two wedge-shaped calipers are clamped on both sides of one of the columns, thereby controlling the braking of the stacker crane cargo platform in the event of a stall. At the same time, the active clamping bracket moves the driven clamping bracket through the synchronous shaft, so that the other two wedge-shaped calipers are clamped on both sides of the other column, thereby ensuring simultaneous braking from both sides of the stacker crane cargo platform, thereby effectively improving the stability and reliability of the equipment during operation, extending its service life, avoiding potential falling risks, and improving the working efficiency and safety of the equipment.

[0014] 3. The linkage design makes the installation process of the safety clamp more convenient and efficient, which not only greatly shortens the assembly time, but also greatly reduces the assembly difficulty, reduces the workload and labor intensity of the assembly master, and helps to improve the overall work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 This is a schematic diagram of the three-dimensional structure of the guide wheel and overspeed protection synchronous adjustment device of the double-column stacker crane loading platform proposed by the present invention;

[0016] Figure 2 This is a schematic diagram of the internal structure of a guide wheel and overspeed protection synchronous adjustment device for a double-column stacker crane loading platform proposed by the present invention;

[0017] Figure 3 This is a schematic diagram of the structure of the guide wheels and overspeed protection synchronous adjustment device of the double-column stacker crane loading platform proposed by the present invention in use;

[0018] Figure 4 This is a schematic diagram of the exploded structure of a guide wheel and overspeed protection synchronous adjustment device for a double-column stacker loading platform proposed by the utility model.

[0019] In the figure: 1. Cargo platform frame; 2. Support frame; 3. First guide wheel; 4. Eccentric wheel shaft; 5. Second guide wheel; 6. Safety clamp; 7. Rotating shaft; 8. Active clamping bracket; 9. Driven clamping bracket; 10. Connecting rod; 11. Synchronous shaft; 12. Speed ​​limiter connection end; 13. Protective cover; 14. Rotating arm; 15. Wedge caliper; 16. Mounting bracket; 17. Sliding rod; 18. Buffer spring; 19. Pull rope; 20. Column. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0021] Reference Figures 1-4 A device for synchronously adjusting the guide wheels and overspeed protection of a double-column stacker loading platform comprises a loading platform frame 1 and two columns 20. A support frame 2 is fixed to both sides of the top of the loading platform frame 1 by bolts. The top inner wall of the support frame 2 is rotatably connected to a first guide wheel 3. The first guide wheel 3 contacts one side of the column 20. One side of the support frame 2 is provided with multiple eccentric wheel shafts 4. One end of the eccentric wheel shaft 4 is provided with a second guide wheel 5. The multiple second guide wheels 5 contact the other opposite sides of the column 20. One end of the eccentric wheel shaft 4 A safety clamp 6 is sleeved, and a rotating shaft 7 is rotatably inserted between the two safety clamps 6. Two rotating arms 14 are welded to the outer wall of the rotating shaft 7. A wedge-shaped caliper 15 is fixed to the other end of the rotating arm 14 by bolts. The two wedge-shaped calipers 15 are clamped on both sides of the column 20. The gap between the safety clamp 6 and the column 20 is adjusted by the eccentric wheel shaft 4 and the second guide wheel 5, so that the gap between the four wedge-shaped calipers 15 and the column 20 is consistent, thereby avoiding the potential risk of the safety clamp 6 failing to clamp when the stacker loading platform stalls;

[0022] An active clamping bracket 8 is welded to one end of one of the rotating shafts 7, and a speed limiter connection end 12 is provided at the other end of the active clamping bracket 8. The speed limiter drives the active clamping bracket 8 to rotate, thereby rotating the rotating shaft 7 connected thereto, and then driving the rotating arm 14 and the wedge-shaped caliper 15 to rotate, so that the two wedge-shaped calipers 15 are clamped on both sides of one of the columns 20, thereby controlling the braking of the stacker cargo platform in the event of a stall. A driven clamping bracket 9 is welded to one end of the other rotating shaft 7, and one side of the active clamping bracket 8 and one side of the driven clamping bracket 9 are both rotatably connected to a connecting rod 10. A synchronous shaft 11 is fixed to one end between the two connecting rods 10 by bolts. The active clamping bracket 8 moves the driven clamping bracket 9 through the synchronous shaft 11, so that the other two wedge-shaped calipers 15 are clamped on both sides of the other column 20, thereby ensuring that the two sides of the stacker cargo platform are braked at the same time.

[0023] A protective cover 13 is fixed to one side of the cargo platform frame 1 by bolts. The protective cover 13 covers the outside of the synchronous shaft 11, and the synchronous shaft 11 is protected by the protective cover 13. A mounting bracket 16 is fixed to one side of the support frame 2 by bolts. A sliding rod 17 is slidably inserted into the bottom of the mounting bracket 16. A buffer spring 18 is sleeved on the bottom end of the sliding rod 17. A pulling rope 19 is fixed to the top of the sliding rod 17. The pulling rope 19 is a steel wire rope. The first guide wheel 3 and the second guide wheel 5 roll along the column 20 by pulling the pulling rope 19. One end of the buffer spring 18 is fixedly connected to the mounting bracket 16.

[0024] The working principle of this embodiment is as follows: during installation, the speed limiter is connected to the speed limiter connecting end 12, and then the gap between the safety clamp 6 and the column 20 is adjusted through the eccentric wheel shaft 4 and the second guide wheel 5, so that the gap between the four wedge-shaped calipers 15 and the column 20 is consistent. When braking, the speed limiter drives the active clamping bracket 8 to rotate, so that the rotating shaft 7 connected to it rotates, and then drives the rotating arm 14 and the wedge-shaped calipers 15 to rotate, so that the two wedge-shaped calipers 15 are clamped on both sides of one of the columns 20, thereby controlling the braking of the stacker cargo platform in the stall situation. At the same time, the active clamping bracket 8 moves the driven clamping bracket 9 through the synchronization shaft 11, so that the other two wedge-shaped calipers 15 are clamped on both sides of the other column 20, thereby ensuring simultaneous braking from both sides of the stacker cargo platform.

[0025] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A device for synchronously adjusting guide wheels and overspeed protection of a double-column stacker loading platform, comprising a loading platform frame (1) and two columns (20), characterized in that: Both sides of the top of the cargo platform frame (1) are fixedly connected to a support frame (2), the top inner wall of the support frame (2) is rotatably connected to a first guide wheel (3), the first guide wheel (3) contacts one side of the column (20), one side of the support frame (2) is provided with a plurality of eccentric wheel shafts (4), one end of the eccentric wheel shaft (4) is provided with a second guide wheel (5), the plurality of second guide wheels (5) contact the other opposite sides of the column (20), one end of the eccentric wheel shaft (4) is sleeved with two safety clamps (6), a rotating shaft (7) is rotatably inserted between the two safety clamps (6), and the outer wall of the rotating shaft (7) is fixedly connected to the support frame (2). There are two rotating arms (14), the other ends of the rotating arms (14) are fixedly connected to wedge-shaped calipers (15), and the two wedge-shaped calipers (15) are clamped on both sides of the column (20). One end of one of the rotating shafts (7) is fixedly connected to an active clamping bracket (8), and the other end of the active clamping bracket (8) is provided with a speed limiter connection end (12). One end of the other rotating shaft (7) is fixedly connected to a driven clamping bracket (9), and one side of the active clamping bracket (8) and one side of the driven clamping bracket (9) are both rotatably connected to a connecting rod (10), and one end between the two connecting rods (10) is fixedly connected to a synchronization shaft (11).

2. The device for synchronously adjusting the guide wheels and overspeed protection of the cargo platform of a double-column stacker according to claim 1 is characterized in that: A protective cover (13) is fixedly connected to one side of the cargo platform frame (1), and the protective cover (13) covers the outside of the synchronous shaft (11).

3. The device for synchronously adjusting the guide wheels and overspeed protection of the cargo platform of a double-column stacker according to claim 1 is characterized in that: One side of the support frame (2) is fixedly connected to a mounting bracket (16), the bottom of the mounting bracket (16) is slidably connected to a sliding rod (17), the bottom end of the sliding rod (17) is sleeved with a buffer spring (18), and the top end of the sliding rod (17) is fixed with a pulling rope (19).

4. The device for synchronously adjusting the guide wheels and overspeed protection of the cargo platform of a double-column stacker according to claim 3 is characterized in that: The pulling rope (19) is a steel wire rope.

5. The device for synchronously adjusting the guide wheels and overspeed protection of the cargo platform of a double-column stacker according to claim 3 is characterized in that: One end of the buffer spring (18) is fixedly connected to the mounting bracket (16).

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