Safety tongs triggering mechanism of cargo carrying platform of stacking machine

Abstract

The utility model discloses a safety tongs triggering mechanism of a cargo carrying platform of a stacking machine, which belongs to the field of vertical warehouse products, is connected with all structures through steel wire ropes, is not limited by space, and can be more freely adapted to different elevator designs. The structure is simple, and the maintenance cost is low; steel wire rope transmission is adopted, and vibration and noise are low; the structure is rapid in trigger response. The device mainly comprises a stacking machine cargo carrying table, mounting plates are arranged on racks on two sides of the stacking machine cargo carrying table, one end of the main connecting rod is hinged to the rack on one side, a first limiting device is arranged on the rack, a first reset device is arranged on the mounting plates, and a second limiting device is arranged on the auxiliary connecting rod. The first limiting device and the first reset device are both located below the main connecting rod and away from the hinged position of the main connecting rod, and the first reset device is connected with the main connecting rod. The ends, away from the hinged position, of the main connecting rods are connected with the ends, away from the hinged position, of the auxiliary connecting rods through connecting ropes. The safety tongs trigger device is mainly used for triggering the safety tongs of the cargo carrying platform of the stacking machine.

Description

TECHNICAL FIELD

[0001] The utility model relates to vertical warehouse product field, and specifically, especially relates to a safety tong trigger mechanism of stacker loading platform. BACKGROUND

[0002] The main purpose of the safety tong is to ensure that the stacker loading platform can be automatically triggered and take emergency braking measures when a fault or overspeed occurs, thereby preventing the stacker loading platform from falling or accidents. The working principle is that when the stacker loading platform overspeeds or other faults occur, the safety tong block will generate a strong braking force through contact with the elevator guide rail, causing the stacker loading platform to stop quickly and prevent falling.

[0003] The existing safety tong trigger mechanism has the following shortcomings:

[0004] Complex structure: The traditional connecting rod trigger mechanism is usually composed of multiple mechanical components (such as connecting rods, hinges, etc.), and the mechanical structure is relatively complex, requiring high precision and more components for manufacturing and installation;

[0005] Poor flexibility: The traditional connecting rod system is not as flexible as steel wire rope, and cannot adapt to complex or narrow space layout, with poor design flexibility, especially in some special working conditions, it is difficult to achieve ideal layout;

[0006] Loud noise: The traditional connecting rod mechanism produces a lot of mechanical friction sound and movement noise during transmission;

[0007] Slow response: Compared with the steel wire rope system, the traditional connecting rod system may be slightly slower in response, especially during transmission, if there is wear or resistance in the components, or the connecting rod mechanism is too long and lacks rigidity, the sensitivity of the trigger is low;

[0008] High maintenance difficulty: The traditional connecting rod mechanism needs regular maintenance and lubrication, especially after long-term use, it may loosen, wear or have other faults, increasing the complexity and cost of maintenance. INVENTION CONTENTS

[0009] The purpose of the utility model is to provide a safety tong trigger mechanism of stacker loading platform, which connects each structure by steel wire rope, is not limited by space, can more freely adapt to different elevator designs, has simple structure and low maintenance cost, adopts steel wire rope transmission, has small vibration and noise, and has rapid trigger response.

[0010] The utility model is implemented through the following technical solutions:

[0011] A safety tong trigger mechanism of stacker loading platform, comprising a stacker loading platform, an installation plate provided on the rack on both sides of the stacker loading platform, and

[0012] The main connecting rod is hingedly arranged at one end of a rack on one side, and a limiting device I is arranged on the rack. A reset device I is arranged on the mounting plate. The limiting device I and the reset device I are both located below the main connecting rod and away from the hinged end of the main connecting rod. The reset device I is connected to the main connecting rod.

[0013] The auxiliary connecting rod is hingedly arranged at one end of a rack on the other side, and a limiting device II is arranged on the rack. A reset device II is arranged on the mounting plate. The limiting device II and the reset device II are both located below the auxiliary connecting rod and away from the hinged end of the auxiliary connecting rod. The reset device II is connected to the auxiliary connecting rod.

[0014] A plurality of tensioning wheels are arranged on the loading platform of the stacker. The end of the main connecting rod away from the hinged end and the end of the auxiliary connecting rod away from the hinged end are connected by a connecting rope. The connecting rope is tensioned by the plurality of tensioning wheels.

[0015] Further, the reset device I includes a spring fixing part I and a reset spring I. The spring fixing part I is arranged on the mounting plate on one side. One end of the reset spring I is connected to the spring fixing part I, and the other end of the reset spring I is connected to the lower end of the main connecting rod.

[0016] The reset device II includes a spring fixing part II and a reset spring II. The spring fixing part II is arranged on the mounting plate on the other side. One end of the reset spring II is connected to the spring fixing part II, and the other end of the reset spring II is connected to the lower end of the auxiliary connecting rod.

[0017] Further, the limiting device I is a limiting rod I, and the limiting device II is a limiting rod II.

[0018] Further, one end of the connecting rope is connected to the lower end of the main connecting rod away from the hinged end through a rigging screw buckle, and the other end of the connecting rope is connected to the upper end of the auxiliary connecting rod away from the hinged end through a rigging screw buckle. The connection between the rigging screw buckle and the main connecting rod is hinged, and the connection between the rigging screw buckle and the auxiliary connecting rod is hinged.

[0019] Further, the plurality of tensioning wheels include a tensioning wheel I, a tensioning wheel II, and a tensioning wheel III. The tensioning wheel I is arranged at the lower part of the loading platform of the stacker on one side of the main connecting rod. The tensioning wheel II is arranged at the lower part of the loading platform of the stacker on one side of the auxiliary connecting rod. The tensioning wheel III is arranged at the upper end of the rack on one side of the auxiliary connecting rod. The connecting rope is tensioned through the tensioning wheel I, the tensioning wheel II, and the tensioning wheel III, respectively. The two ends of the connecting rope are connected to the rigging screw buckles on both sides, respectively.

[0020] Further, it further includes safety tongs arranged on the mounting plates on both sides. The two safety tongs are located below the main connecting rod and the auxiliary connecting rod, respectively. Safety tong lifting plates are welded below the main connecting rod and the auxiliary connecting rod. The safety tong lifting plates are connected to the safety tong blocks of the safety tongs.

[0021] Further, the connecting rope is a steel wire rope.

[0022] Compared with the prior art, the utility model has the beneficial effects that

[0023] 1. The tension of the steel wire rope is finely adjusted through the rigging screw, the screw can adjust the tension of the steel wire rope according to actual needs, and ensures that the safety clamp can be timely and accurately started when the elevator fails or overspeeds.

[0024] 2. The main and auxiliary connecting rods are replaced by oil-free bushings through the hinged rotary structure, avoiding the need for traditional lubrication and realizing lubrication-free operation.

[0025] 3. The reset spring alleviates the instantaneous pulling force generated by inertia, preventing unnecessary false triggering; the limiting rod is used to prevent the main and auxiliary connecting rods from moving downward, ensuring that the safety clamp will not be falsely triggered due to misoperation or external force under any circumstances.

[0026] 4. The structures are connected by steel wire ropes, not limited by space, and can more freely adapt to different elevator designs; the structure is simple and has low maintenance cost; the steel wire rope transmission has small vibration and noise; and the structure has rapid triggering response. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 is a structural schematic view of the utility model;

[0028] Figure 2 is a structural schematic view of the utility model;

[0029] Figure 3 is a connection schematic view of the main and auxiliary connecting rods of the utility model;

[0030] Figure 4 is a local enlarged view of the main connecting rod of the utility model;

[0031] Figure 5 is a local enlarged view of the auxiliary connecting rod of the utility model.

[0032] In the drawing: 1, stacker loading platform; 2, rack; 3, mounting plate; 4, main connecting rod; 5, limiting rod one; 6, reset spring one; 7, spring fixing part one; 8, rigging screw; 9, safety clamp pulling plate; 10, tensioning wheel one; 11, tensioning wheel two; 12, tensioning wheel three; 13, safety clamp; 14, auxiliary connecting rod; 15, connecting rope; 16, limiting rod two; 17, reset spring two; 18, spring fixing part two. DETAILED DESCRIPTION

[0033] The utility model will be further described below in combination with the drawings.

[0034] Example 1

[0035] As Figure 1 -Figure 2 As shown in the figure, a safety clamp trigger mechanism of a stacker loading platform, comprising a stacker loading platform 1, a mounting plate 3 arranged on the rack 2 on both sides of the stacker loading platform 1, and further comprising

[0036] A main connecting rod 4, one end of which is hingedly arranged on one side of the rack 2, and a limiting device one is arranged on the rack 2, a reset device one is arranged on the mounting plate 3, and the limiting device one and the reset device one are both located below the main connecting rod 4 and away from the hinged part of the main connecting rod 4, and the reset device one is connected with the main connecting rod 4;

[0037] A secondary connecting rod 14, one end of which is hingedly arranged on the other side of the rack 2, and a limiting device two is arranged on the rack 2, and a reset device two is arranged on the mounting plate 3, and the limiting device two and the reset device two are both located below the secondary connecting rod 14 and away from the hinged part of the secondary connecting rod 14, and the reset device two is connected with the secondary connecting rod 14;

[0038] A plurality of tensioning wheels are arranged on the stacker loading platform 1, one end of the main connecting rod 4 away from the hinged part and one end of the secondary connecting rod 14 away from the hinged part are connected by a connecting rope 15, and the connecting rope 15 is tensioned by the plurality of tensioning wheels.

[0039] Example 2

[0040] As Figure 1 - Figure 5The safety pawl trigger mechanism of the stacker loading platform comprises a reset device I, a reset device II, a limiting device I, a limiting device II, a connecting rope 15, and a safety pawl 13. The reset device I comprises a spring fixing part I 7 and a reset spring I 6. The spring fixing part I 7 is arranged on the mounting plate 3 on one side, and one end of the reset spring I 6 is connected to the spring fixing part I 7. The other end of the reset spring I 6 is connected to the lower end of the main connecting rod 4. The reset device II comprises a spring fixing part II 18 and a reset spring II 17. The spring fixing part II 18 is arranged on the mounting plate 3 on the other side, and one end of the reset spring II 17 is connected to the spring fixing part II 18. The other end of the reset spring II 17 is connected to the lower end of the auxiliary connecting rod 14. The limiting device I is a limiting rod I 5, and the limiting device II is a limiting rod II 16. The limiting rods and the reset springs ensure that the safety pawl 13 is triggered only when the elevator fails, and will not be misoperated due to external force. One end of the connecting rope 15 is connected to the lower end of the main connecting rod 4 away from the hinge through a rigging screw buckle 8, and the other end of the connecting rope 15 is connected to the upper end of the auxiliary connecting rod 14 away from the hinge through a rigging screw buckle 8. The connection between the rigging screw buckle 8 and the main connecting rod 4 is hinged, and the connection between the rigging screw buckle 8 and the auxiliary connecting rod 14 is hinged. The plurality of tensioning wheels comprise a tensioning wheel I 10, a tensioning wheel II 11, and a tensioning wheel III 12. The tensioning wheel I 10 is arranged at the lower part of the stacker loading platform 1 on one side of the main connecting rod 4. The tensioning wheel II 11 is arranged at the lower part of the stacker loading platform 1 on one side of the auxiliary connecting rod 14. The tensioning wheel III 12 is arranged at the upper end of the rack 2 on one side of the auxiliary connecting rod 14. The connecting rope 15 is tensioned through the tensioning wheel I 10, the tensioning wheel II 11, and the tensioning wheel III 12, respectively. The two ends of the connecting rope 15 are connected to two rigging screw buckles 8 on the two sides, respectively. The safety pawl 13 is arranged on the two mounting plates 3. The two safety pawls 13 are located below the main connecting rod 4 and the auxiliary connecting rod 14, respectively. The safety pawl lifting plates 9 are welded below the main connecting rod 4 and the auxiliary connecting rod 14. The safety pawl lifting plates 9 are connected to the safety pawl blocks of the safety pawls 13 (a double-nut locking structure is adopted to ensure the close connection between the safety pawl lifting plates 9 and the safety pawls 13, effectively avoiding loosening or disconnection caused by factors such as vibration and impact in long-term use, thereby ensuring the stability and safety of the trigger mechanism). The connecting rope 15 is a steel wire rope, and the other parts are the same as in example 1.

[0041] When the stacker loading platform 1 is normally operated, the steel wire rope maintains a certain tensioning force, the safety pawl 13 is in a standby state, the limiting rods and the reset springs generate upward and downward constraint forces on the main and auxiliary connecting rods, and it is ensured that the safety pawl 13 does not perform any action under normal circumstances.

[0042] When the stacker carrier platform 1 is overspeed or rapid downward, the speed limiter generates upward tension on the main connecting rod 4, the tension of the steel wire rope changes, the steel wire rope transmits tension through the connection of the tensioning wheel one 10, the tensioning wheel two 11, the tensioning wheel three 12 and the rigging screw 8, and through the transmission of tension to the auxiliary connecting rod 14, the effect of triggering the safety clamps 13 on both sides at the same time is achieved, the safety clamp lifting plate 9 drives the safety clamp block to clamp the elevator guide rail to achieve the braking effect. The reset spring pulls the main and auxiliary connecting rods back to the reset position, and the limiting rod prevents the main and auxiliary connecting rods from being excessively reset.

[0043] The rigging screw 8 is a kuud rigging screw, and the tension of the steel wire rope is adjusted by adjusting the amount of rotation of the rigging screw 8, so that the safety clamps 13 can be triggered quickly and accurately when they fail or overspeed. The tensioning wheel one 10, the tensioning wheel two 11 and the tensioning wheel three 12 are all nylon wheels, which ensure smooth running of the steel wire rope during transmission and avoid jamming, and improve the reliability of the system.

Claims

1. A safety clamp triggering mechanism of a stacker platform, comprising a stacker platform (1), and a mounting plate (3) arranged on the rack (2) on both sides of the stacker platform (1), characterized in that: Also include The main connecting rod (4) is hinged to one side of the rack (2), and the rack (2) is provided with a limiting device one. The mounting plate (3) is provided with a reset device one, and the limiting device one and the reset device one are located below the main connecting rod (4). The reset device one is connected with the main connecting rod (4); The auxiliary connecting rod (14) is hinged to the other side of the rack (2), and the rack (2) is provided with a limiting device two. The mounting plate (3) is provided with a reset device two, and the limiting device two and the reset device two are located below the auxiliary connecting rod (14). The reset device two is connected with the auxiliary connecting rod (14); The stacker loading platform (1) is provided with a plurality of tensioning wheels. The end of the main connecting rod (4) away from the hinge and the end of the auxiliary connecting rod (14) away from the hinge are connected by a connecting rope (15), and the connecting rope (15) is tensioned by a plurality of tensioning wheels.

2. The pallet jack safety bar trigger mechanism of claim 1, wherein: The reset device one includes a spring fixing piece one (7) and a reset spring one (6). The spring fixing piece one (7) is arranged on one side of the mounting plate (3), and one end of the reset spring one (6) is connected with the spring fixing piece one (7). The other end of the reset spring one (6) is connected with the lower end of the main connecting rod (4). The reset device two includes a spring fixing piece two (18) and a reset spring two (17). The spring fixing piece two (18) is arranged on the other side of the mounting plate (3), and one end of the reset spring two (17) is connected with the spring fixing piece two (18). The other end of the reset spring two (17) is connected with the lower end of the auxiliary connecting rod (14).

3. The pallet jack safety bar trigger mechanism of claim 1, wherein: The limiting device one is a limiting rod one (5), and the limiting device two is a limiting rod two (16).

4. The pallet jack safety bar trigger mechanism of claim 1, wherein: One end of the connecting rope (15) is connected with the lower end of the main connecting rod (4) away from the hinge through a rigging screw buckle (8), and the other end of the connecting rope (15) is connected with the upper end of the auxiliary connecting rod (14) away from the hinge through a rigging screw buckle (8).

5. The pallet safety fork trigger mechanism of claim 4, wherein: The plurality of tensioning wheels include a tensioning wheel one (10), a tensioning wheel two (11) and a tensioning wheel three (12). The tensioning wheel one (10) is arranged at the lower part of the stacker loading platform (1) on one side of the main connecting rod (4). The tensioning wheel two (11) is arranged at the lower part of the stacker loading platform (1) on one side of the auxiliary connecting rod (14). The tensioning wheel three (12) is arranged at the upper end of the rack (2) on one side of the auxiliary connecting rod (14). The connecting rope (15) is tensioned through the tensioning wheel one (10), the tensioning wheel two (11) and the tensioning wheel three (12) respectively. The two ends of the connecting rope (15) are connected with two rigging screw buckles (8) on the two sides respectively.

6. The pallet jack safety bar trigger mechanism of claim 1, wherein: Also include safety tongs (13) arranged on the mounting plates (3) on the two sides. The two safety tongs (13) are located below the main connecting rod (4) and the auxiliary connecting rod (14) respectively. Safety tong lifting plates (9) are welded below the main connecting rod (4) and the auxiliary connecting rod (14). The safety tong lifting plates (9) are connected with the safety tong blocks of the safety tongs (13).

7. The pallet jack safety bar trigger mechanism of claim 1, wherein: The connecting rope (15) is a steel wire rope.

Images