A trigger structure for overspeed protection of a double-column stacker crane

Abstract

This application relates to an overspeed protection triggering structure for a double-column stacker crane, including a speed limiting mechanism and a triggering mechanism. The speed limiting mechanism drives the triggering mechanism to actuate, and the triggering mechanism actuates the safety clamp. The triggering mechanism includes a first trigger rod, a second trigger rod, and a flexible connector. The first trigger rod connects to the speed limiting mechanism and drives the second trigger rod to actuate. The second trigger rod triggers the safety clamp and the flexible connector to actuate. The flexible connector actuates the safety clamp on the other side of the loading platform. This application has the advantage of using a flexible connector to trigger the safety clamp, making the triggering structure simpler and reducing maintenance costs.

Description

Technical Field

[0001] This application relates to the technical field of overspeed protection, and in particular to an overspeed protection trigger structure for a double-column stacker crane. Background Technology

[0002] To ensure the safe operation of the loading platform, an overspeed protection triggering structure needs to be installed. The triggering structure usually uses a linkage to connect the left and right safety clamps to ensure their synchronization. However, this linkage requires multiple steering joints, making the structure more complex and the maintenance cost higher. Utility Model Content

[0003] To address the shortcomings of existing technologies, one of the objectives of this application is to provide an overspeed protection triggering structure for a double-column stacker crane, which features the advantage of using flexible connectors to trigger the safety clamp action, making the triggering structure simpler and reducing maintenance costs.

[0004] The above-mentioned objective of this application is achieved through the following technical solution: A double-column stacker crane overspeed protection triggering structure includes a speed limiting mechanism and a triggering mechanism. The speed limiting mechanism is used to drive the triggering mechanism to move, and the triggering mechanism is used to activate the safety clamp. The triggering mechanism includes a trigger rod one, a trigger rod two, and a flexible connector. The trigger rod one is used to connect with the speed limiting mechanism and drive the trigger rod two to move. The trigger rod two is used to trigger the safety clamp and the flexible connector to move. The flexible connector is used to activate the safety clamp on the other side of the loading platform.

[0005] By adopting the above technical solution, when the descent speed of the loading platform is too fast, the speed limiting mechanism drives the first trigger rod to move, the first trigger rod drives the second trigger rod to move, the second trigger rod drives the safety clamp and the flexible connector to move, and the flexible connector causes the safety clamp on the other side of the loading platform to move, thereby achieving the purpose of the flexible connector triggering the safety clamp to move, making the triggering structure simpler and the maintenance cost lower.

[0006] In a preferred embodiment, the present application may be further configured such that: the triggering mechanism includes a trigger rod three, which is located on the other side of the loading platform and connected to the flexible connector. The trigger rod three is rotatably connected to the loading platform, and the trigger rod three is used to drive the safety clamp on the other side of the loading platform to move.

[0007] By adopting the above technical solution, the flexible connector drives the trigger rod three to move, and the trigger rod three drives the safety clamp on the other side of the loading platform to move, thus achieving the purpose of the safety clamps on both sides of the loading platform moving synchronously.

[0008] In a preferred embodiment, this application can be further configured such that: trigger rod one is rotatably connected to the loading platform, one end of trigger rod one is connected to the speed limiting mechanism, and the other end is in contact with trigger rod two.

[0009] By adopting the above technical solution, when one end of the trigger lever moves downward or downward under the action of the speed limiting structure, the other end can move in the opposite direction, thereby achieving the purpose of trigger lever one triggering lever two.

[0010] In a preferred embodiment, this application can be further configured such that: the other end of the trigger lever one is provided with a contact element for contacting the trigger lever two.

[0011] In a preferred embodiment, this application can be further configured such that: trigger lever two is rotatably connected to the loading platform, one end of trigger lever two is in contact with contact lever one, and the other end is connected to the safety clamp.

[0012] By adopting the above technical solution, when one end of the trigger lever 2 moves downward or moves under the action of the trigger lever 1, the other end can move in the opposite direction, thereby driving the safety clamp to move.

[0013] In a preferred embodiment, the present application may be further configured such that the triggering mechanism includes a limiting member for contacting one end of the trigger lever.

[0014] By adopting the above technical solution, the limiting member and one end of the trigger rod are in contact, so that the limiting member can limit the position of one end of the trigger rod.

[0015] In a preferred embodiment, the application may be further configured such that the triggering mechanism also includes a reset element one and a reset element two, wherein the reset element one is used to reset the trigger rod one, and the reset element two is used to reset the trigger rod two.

[0016] In a preferred embodiment, this application may be further configured such that the speed limiting mechanism includes a speed limiting element and a wire rope, the speed limiting element being used to stop the wire rope from moving when the loading platform exceeds the speed limit, and the wire rope being used to connect to the loading platform via a trigger rod.

[0017] By adopting the above technical solution, when the loading platform exceeds the speed limit, the speed limiter stops the steel wire rope. The steel wire rope stops moving, but the loading platform moves downward, causing one end of the trigger rod one to move downward, thereby triggering the trigger rod two. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of an embodiment of this application.

[0019] Figure 2 This is a partial view A of the structure of this application.

[0020] Figure 3 This is a schematic diagram of the structure from another perspective of an embodiment of this application.

[0021] Reference numerals in the attached drawings: 1. Cargo platform; 2. Speed ​​limiting mechanism; 3. Triggering mechanism; 31. Trigger rod one; 32. Trigger rod two; 33. Trigger rod three; 34. Flexible connector; 35. Limiting component; 36. Reset component one; 37. Reset component two; 38. Contact component; 4. Speed ​​limiting component; 5. Steel wire rope; 6. Guide wheel; 7. Spiral buckle; 8. Steel wire rope clamp; 9. Safety clamp. Detailed Implementation

[0022] The present application will be further described in detail below with reference to the accompanying drawings.

[0023] Reference Figures 1 to 3 The present application discloses an overspeed protection triggering structure for a double-column stacker crane, which includes a speed limiting mechanism 2 and a triggering mechanism 3. The speed limiting mechanism 2 is used to drive the triggering mechanism 3 to move, and the triggering mechanism 3 is used to activate the safety clamp 9.

[0024] Triggering mechanism 3 includes trigger rod 1 31, trigger rod 2 32, trigger rod 33, flexible connector 34, limiting member 35, reset member 1 36, and reset member 2 37. Trigger rod 1 31 is used to connect with speed limiting mechanism 2 and drive trigger rod 2 32 to move. Trigger rod 2 32 is used to trigger the safety clamp 9 and flexible connector 34 to move. Flexible connector 34 is used to activate the safety clamp 9 on the other side of loading platform 1. Trigger rod 33 is located on the other side of loading platform 1 and connected to flexible connector 34. Next, trigger rod 33 is rotatably connected to the loading platform 1 via a bearing. Trigger rod 33 is used to drive the safety clamp 9 on the other side of the loading platform 1 to move. Limiting member 35 is installed on the loading platform 1 to contact one end of trigger rod 31. Reset member 36 is used to reset trigger rod 31. Reset member 37 is used to reset trigger rod 32. In this example, flexible connector 34 can be an elevator rope clamp cable or a bicycle brake cable. Reset member 36 and reset member 37 can be springs.

[0025] Trigger rod 1 31 is rotatably connected to the loading platform 1 via a bearing. One end of trigger rod 1 31 is connected to the speed limiting mechanism 2, and the other end is in contact with trigger rod 2 32. The other end of the trigger rod 1 is provided with a contact element 38, which is used to contact trigger rod 2 32. Trigger rod 2 32 is rotatably connected to the loading platform 1 via a bearing. One end of trigger rod 2 32 is in contact with contact element 38, and the other end is connected to safety clamp 9 and flexible connector 34. In this example, contact element 38 can be a bearing.

[0026] The speed limiting mechanism 2 includes a guide wheel 6, a speed limiting component 4, and a wire rope 5. The speed limiting component 4 is used to stop the wire rope 5 when the loading platform 1 exceeds the speed limit. The wire rope 5 is used to connect to the loading platform 1 through a trigger rod 31. The guide wheel 6 is used to provide support for the wire rope 5. In this embodiment, the guide wheel 6 and the speed limiting component 4 are installed on a fixed structure (e.g., a wall). The speed limiting component 4 can be a speed limiter. The wire rope 5 is provided with a spiral buckle 7 and a wire rope clamp 8. The spiral buckle 7 is used to adjust the tension of the wire rope, and the wire rope clamp 8 is used to limit the range of movement of the wire rope 5.

[0027] When the descent speed of the loading platform 1 is too fast, the speed limiter 4 acts to limit the speed, causing the wire rope 5 to stop moving. However, as the loading platform 1 moves downward, the limiting member 35 moves downward, and one end of the trigger rod 31 contacts the limiting member 35. This causes one end of the trigger rod 31 to move downward and the other end to move upward. Since the other end contacts the trigger rod 32, the end in contact with the trigger rod 32 moves upward and the other end moves downward. This causes the trigger rod 32 to drive the safety clamp 9 to move. The trigger rod 31 drives the trigger rod 32 to move, and the trigger rod 32 drives the safety clamp 9 and the flexible connector 34 to move. The flexible connector 34 drives one end of the trigger rod 33 to move downward, causing the other end of the trigger rod 33 to move downward and drive the safety clamp 9 on the other side of the loading platform 1 to move. This achieves the purpose of synchronous movement of the safety clamps 9 on both sides of the loading platform 1.

[0028] Once the fault is cleared, trigger rod 31 is reset via reset component 36, trigger rod 32 is reset via reset component 37, and trigger rod 33 is reset along with the reset of flexible connector 34.

[0029] The implementation principle of this embodiment is as follows: When the descent speed of the loading platform 1 is too fast, the speed limiting mechanism 2 drives the trigger rod 1 31 to move, the trigger rod 1 31 drives the trigger rod 2 32 to move, the trigger rod 2 32 drives the safety clamp 9 and the flexible connector 34 to move, the flexible connector 34 drives the trigger rod 33 to move, and the trigger rod 33 causes the safety clamp 9 on the other side of the loading platform 1 to move. The trigger rod 1 31, the trigger rod 2 and the trigger rod 33 cooperate to achieve the purpose of the flexible connector 34 driving the safety clamp 9 on the other side of the loading platform 1 to move, and to achieve the purpose of the safety clamps 9 on both sides of the loading platform 1 to move synchronously, thereby making the triggering structure simpler and the maintenance cost lower.

[0030] The embodiments described in this specific implementation are preferred embodiments of this application and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. An overspeed protection triggering structure for a double-column stacker crane, characterized in that: It includes a speed limiting mechanism (2) and a triggering mechanism (3). The speed limiting mechanism (2) is used to drive the triggering mechanism (3) to move. The triggering mechanism (3) is used to make the safety clamp (9) move. The triggering mechanism (3) includes a trigger rod one (31), a trigger rod two (32) and a flexible connector (34). The trigger rod one (31) is used to connect with the speed limiting mechanism (2) and drive the trigger rod two (32) to move. The trigger rod two (32) is used to trigger the safety clamp (9) and the flexible connector (34) to move. The flexible connector (34) is used to make the safety clamp (9) on the other side of the loading platform (1) move.

2. The overspeed protection triggering structure for a double-column stacker crane according to claim 1, characterized in that: The triggering mechanism (3) includes a trigger rod three (33), which is located on the other side of the loading platform (1) and connected to the flexible connector (34). The trigger rod three (33) is rotatably connected to the loading platform (1), and the trigger rod three (33) is used to drive the safety clamp (9) on the other side of the loading platform (1) to move.

3. The overspeed protection triggering structure for a double-column stacker crane according to claim 1, characterized in that: Trigger rod 1 (31) is rotatably connected to the loading platform (1). One end of trigger rod 1 (31) is connected to the speed limiting mechanism (2), and the other end is in contact with trigger rod 2 (32).

4. The overspeed protection triggering structure for a double-column stacker crane according to claim 3, characterized in that: The other end of trigger rod one (31) is provided with a contact member (38), which is used to contact trigger rod two (32).

5. The overspeed protection triggering structure for a double-column stacker crane according to claim 1, characterized in that: The trigger lever 2 (32) is rotatably connected to the loading platform (1). One end of the trigger lever 2 (32) is in contact with the contact lever 1, and the other end is connected to the safety clamp (9).

6. The overspeed protection triggering structure for a double-column stacker crane according to claim 1, characterized in that: The triggering mechanism (3) includes a limiting member (35) for contacting one end of the trigger rod (31).

7. The overspeed protection triggering structure for a double-column stacker crane according to claim 1, characterized in that: The triggering mechanism (3) also includes a first reset component (36) and a second reset component (37). The first reset component (36) is used to reset the first trigger rod (31), and the second reset component (37) is used to reset the second trigger rod (32).

8. The overspeed protection triggering structure for a double-column stacker crane according to claim 1, characterized in that: The speed limiting mechanism (2) includes a speed limiting component (4) and a wire rope (5). The speed limiting component (4) is used to stop the wire rope (5) when the loading platform (1) exceeds the speed limit. The wire rope (5) is used to connect to the loading platform (1) through a trigger rod (31).

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