Anti-falling safety device for solid engine three-dimensional storage warehouse stacking machine

Abstract

The invention discloses an anti-falling safety device for a solid engine three-dimensional storage warehouse stacking machine, and belongs to the technical field of safety protection of storage equipment of solid rocket engines and parts of the solid rocket engines, and the anti-falling safety device comprises a speed sensing wheel, a gravity sensing wheel, a mounting frame, a braking device and a triggering device; wherein the speed sensing wheel and the gravity sensing wheel are both arranged on the triggering device; the gravity sensing wheel is positioned at the lower part of the speed sensing wheel; the speed sensing wheel is in contact with a running track of the stacking machine; the trigger device is mounted on the mounting frame; the brake device is mounted on the mounting frame; when the stacking machine works normally, a gap exists between the braking device and the operation track of the stacking machine. The problem that in the prior art, due to abnormal operation of a stacking machine, carried objects fall off is solved, and the safety and reliability of the solid rocket engine and parts of the solid rocket engine in the storage and transfer process are improved.

Description

Technical Field

[0001] This invention belongs to the field of safety protection technology for storage equipment of solid rocket engines and their components, and particularly relates to a fall protection safety device for a stacker crane of a three-dimensional storage warehouse for solid rocket engines. Background Technology

[0002] Stacker cranes are crucial lifting and transport equipment in automated storage and retrieval systems (AS / RS). In the storage and transfer of solid rocket engines, stacker cranes, as key components carrying the engines and their parts, are responsible for transporting engine parts between different storage locations within the system, enabling automated storage and retrieval. After prolonged operation under heavy loads, the load-bearing components may experience localized damage or even breakage, potentially leading to the free fall of the stacker and causing a safety accident. Summary of the Invention

[0003] The technical problem solved by this invention is to overcome the shortcomings of the prior art and provide a fall prevention safety device for a stacker crane in a three-dimensional storage warehouse for solid rocket engines, so as to solve the problem of cargo falling due to abnormal operation of the stacker crane in the prior art, and improve the safety and reliability of solid rocket engines and their components during storage and transportation.

[0004] The objective of this invention is achieved through the following technical solution: a fall prevention safety device for a stacker crane in a solid rocket motor storage facility, comprising: a speed sensing wheel, a gravity sensing wheel, a mounting frame, a braking device, and a triggering device; wherein, the speed sensing wheel and the gravity sensing wheel are both mounted on the triggering device; the gravity sensing wheel is located below the speed sensing wheel; the speed sensing wheel is in contact with the running track of the stacker crane; the triggering device is mounted on the mounting frame; the braking device is mounted on the mounting frame; during normal operation of the stacker crane, there is a gap between the braking device and the running track of the stacker crane.

[0005] In the aforementioned anti-fall safety device for a stacker crane used in a solid fuel engine storage facility, the braking device includes a brake caliper, a brake wedge, and a spring; wherein, the brake caliper is mounted on the mounting bracket; the brake wedge is disposed within the brake caliper and is capable of sliding along the guide groove of the brake caliper; the spring is disposed between the brake wedge and the bottom of the brake caliper; the triggering device is connected to the spring via a linkage structure; the spring is in a compressed state, maintaining a preset gap between the brake wedge and the running track.

[0006] In the aforementioned anti-fall safety device for the stacker crane used in the solid rocket motor storage warehouse, when the stacker crane falls, the gravity sensing wheel will swing due to the change in gravity, triggering a gravity sensing signal; the speed sensing wheel will contact the running track of the stacker crane, and when the running speed of the stacker crane exceeds the set safety threshold, the speed sensing wheel will generate a speed abnormality signal due to the change in rotation speed; when the triggering device receives the gravity sensing signal and the speed abnormality signal, it will overcome the spring force through the linkage structure and push the brake wedge to move towards the running track, and the brake wedge will clamp the running track with the speed sensing wheel.

[0007] In the aforementioned anti-fall safety device for a stacker crane used in a solid rocket motor storage warehouse, both the speed sensing wheel and the gravity sensing wheel are metal structures.

[0008] In the aforementioned anti-fall safety device for a stacker crane used in a solid rocket motor storage warehouse, the triggering device is a pull rod structure.

[0009] In the aforementioned anti-fall safety device for a stacker crane used in a solid fuel engine storage warehouse, the braking device is trapezoidal.

[0010] In the aforementioned anti-fall safety device for a stacker crane used in a solid rocket motor storage warehouse, the mounting frame is a metal cuboid structure.

[0011] In the aforementioned anti-fall safety device for a stacker crane used in a solid fuel engine storage facility, the triggering device is mounted on the mounting frame using bolts, nuts, and washers.

[0012] In the aforementioned anti-fall safety device for a stacker crane used in a solid fuel engine storage facility, the braking device is mounted on the mounting frame using bolts, nuts, and washers.

[0013] A method of using a fall protection safety device for a stacker crane in a solid rocket motor storage facility includes: When the stacker crane is working normally, the gravity sensing wheel remains stable, the speed sensing wheel rotates as the stacker crane runs, and the brake wedge maintains a preset gap with the running track. When the stacker crane falls, the gravity sensing wheel will swing due to the change in gravity, triggering a gravity sensing signal; the speed sensing wheel comes into contact with the stacker crane's running track. When the stacker crane's running speed exceeds the set safety threshold, the speed sensing wheel's rotation speed will generate a speed abnormality signal; when the triggering device receives the gravity sensing signal and the speed abnormality signal, it overcomes the spring force through the linkage structure and pushes the brake wedge to move towards the running track. The brake wedge clamps the running track with the speed sensing wheel.

[0014] Compared with the prior art, the present invention has the following advantages: (1) The present invention has the characteristics of sensitive triggering and reliable braking, which can significantly improve the safety and reliability of solid rocket motors and their components during the transfer process in the automated storage and retrieval system, avoid damage to the motors and their components and safety accidents caused by the stacker crane falling, and the device is safe and reliable to use, meeting the safety requirements of the automated storage and retrieval system. (2) The gravity-velocity dual-sensor triggering mechanism of the present invention can be accurately triggered at the moment when the stacker crane falls or overspeeds, which greatly shortens the response time and provides a strong guarantee for timely braking; (3) The overall structure design of the present invention is simple and clear, and the connection and assembly methods between the components are simple and easy to understand, which facilitates installation and disassembly, and reduces the difficulty and cost of installation and maintenance. Attached Figure Description

[0015] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings: Figure 1 This is a schematic diagram of the anti-fall safety device for a stacker crane used in a solid rocket motor storage warehouse, provided in an embodiment of the present invention. Detailed Implementation

[0016] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, the embodiments and features described herein can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0017] There is a need to develop a fall protection safety device specifically for stacker cranes used in three-dimensional storage facilities for solid rocket engines, in order to improve the safety of stacker crane operation and ensure the safety of solid rocket engines during storage and handling.

[0018] Figure 1 This is a schematic diagram of the anti-fall safety device for a stacker crane used in a solid rocket motor storage warehouse, provided in an embodiment of the present invention. Figure 1As shown, the anti-fall safety device for the stacker crane used in the solid rocket motor storage warehouse includes: a speed sensing wheel 1, a gravity sensing wheel 2, a mounting frame 3, a braking device 5, and a triggering device 6; wherein, the speed sensing wheel 1 and the gravity sensing wheel 2 are both mounted on the triggering device 6; the gravity sensing wheel 2 is located below the speed sensing wheel 1; the speed sensing wheel 1 is in contact with the running track of the stacker crane; the triggering device 6 is mounted on the mounting frame 3; the braking device 5 is mounted on the mounting frame 3; when the stacker crane is working normally, there is a gap between the braking device 5 and the running track of the stacker crane.

[0019] The braking device 5 includes a brake caliper, a brake wedge, and a spring; wherein, the brake caliper is mounted on the mounting bracket 3; the brake wedge is disposed in the brake caliper and can slide along the guide groove of the brake caliper; the spring is disposed between the brake wedge and the bottom of the brake caliper; the triggering device 6 is connected to the spring through a linkage structure; the spring is in a compressed state, so that the brake wedge and the running track maintain a preset gap.

[0020] When the stacker crane falls, the gravity sensing wheel will swing due to the change in gravity, triggering a gravity sensing signal; the speed sensing wheel will contact the stacker crane's running track. When the stacker crane's running speed exceeds the set safety threshold, the speed sensing wheel's rotation speed will generate a speed abnormality signal; when the triggering device 6 receives the gravity sensing signal and the speed abnormality signal, it will overcome the spring force through the linkage structure and push the brake wedge to move towards the running track. The brake wedge and the speed sensing wheel will clamp the running track.

[0021] Both the speed sensor wheel and the gravity sensor wheel are made of metal. The triggering device 6 is a pull rod structure. The braking device is trapezoidal. The mounting bracket is a metal cuboid structure.

[0022] The triggering device 6 is mounted on the mounting bracket 3 by bolts, nuts and washers.

[0023] The braking device 5 is mounted on the mounting bracket 3 by bolts, nuts and washers.

[0024] The fall protection safety device in this embodiment mainly consists of a triggering device 6, a braking device, a mounting frame 3, a speed sensing wheel 1, and a gravity sensing wheel. The mounting frame 3 is used to securely install the safety device on the stacker crane, ensuring the correct relative position of the safety device and the guide rail.

[0025] The triggering device employs a novel gravity-speed dual-sensor triggering mechanism. The gravity sensor wheel 2 is mounted on the triggering device. When the stacker crane is operating normally, the gravity sensor wheel 2 remains relatively stable under its own weight and the action of the limiting device. If the stacker crane falls, the gravity sensor wheel 2 will swing rapidly due to the change in gravity, triggering the initial signal. The speed sensor wheel 1 is in close contact with the stacker crane's running track. When the stacker crane's running speed exceeds the set safety threshold, the change in the speed sensor wheel 1's rotational speed will trigger the speed sensor switch, generating a speed anomaly signal. Only when both the gravity sensor signal and the speed sensor signal simultaneously meet the conditions will the triggering device 6 output a valid command to activate the braking device 5. This dual-sensor mechanism greatly improves the accuracy and reliability of the triggering, reducing the possibility of false triggering.

[0026] The braking device 5 consists of a brake caliper, a brake wedge, and a high-strength spring. The brake caliper is fixed to the mounting bracket 3, and the brake wedge is disposed within the brake caliper and can slide along the guide groove of the brake caliper. The high-strength spring is installed between the brake wedge and the bottom of the brake caliper. Under normal conditions, the spring is in a compressed state, maintaining a certain gap between the brake wedge and the guide rail, thus not hindering the normal operation of the stacker crane. When the triggering device 6 issues a trigger command, the spring force is overcome by the linkage structure, pushing the brake wedge to move rapidly towards the guide rail, where it clamps tightly against the speed sensing wheel.

[0027] The speed of the trigger device's speed sensor wheel is directly related to the stacker crane's operating speed, which can be deduced from the transmission relationship: ; in, v : Stacker crane operating speed (m / s); D: Diameter of speed sensor wheel (m); n : Rotational speed of the induction wheel (r / min).

[0028] The triggering critical condition of the triggering device is: The centrifugal force F on the induction wheel of the pull rod is equal to the spring preload F0: F=F0; Substituting into the centrifugal force formula, the critical rotational speed n0 and critical velocity v0 at the trigger point can be derived: ; ; In practical applications, v0 should generally be set to 115% of the stacker crane's normal operating rated speed.

[0029] High-strength bolts, nuts, and washers are used to firmly connect the triggering device, braking components, and mounting brackets, ensuring the structural stability and integrity of the safety clamp during operation and allowing it to withstand the enormous impact force generated during braking.

[0030] Based on the size and structural characteristics of the stacker crane, select a suitable installation location and fix the mounting frame to the stacker crane with high-strength bolts, ensuring that the relative positional deviation between the mounting frame and the guide rail is within the allowable range.

[0031] Install the trigger device at the designated position on the mounting frame, and ensure that the speed sensing wheel 1 is in close contact with the stacker crane's running track.

[0032] Install the brake caliper body of the braking assembly on the mounting bracket 3, and then install the brake wedge and high-strength spring into the brake caliper body according to the design requirements. Make preliminary adjustments to the gap between the brake wedge and the guide rail and the pre-compression of the spring.

[0033] Check that all connections are secure, that all moving parts can move flexibly, and that the linkage between the triggering device and the braking assembly is smooth.

[0034] Workflow: 1. When the stacker crane is operating normally in the automated warehouse, the safety devices are in standby mode. Gravity sensor wheel 2 remains stable under its own weight and the action of the limiting device, while speed sensor wheel 1 rotates as the stacker crane moves. The brake wedge maintains a certain gap with the guide rail, allowing the stacker crane to move freely up and down.

[0035] 2. In the event of an accidental fall by the stacker crane, the speed sensor wheel 1 will rotate faster, and the linkage device and the gravity sensor wheel 2, which is oscillating due to gravity changes, will quickly reduce the distance between the roller and the brake wedge until the brake wedge tightly clamps the guide rail.

[0036] 3. As the friction between the brake wedge and the guide rail increases sharply, the stacker crane's falling speed decreases rapidly and eventually stops, achieving safe braking.

[0037] This embodiment also provides a method for using a fall protection safety device for a stacker crane in a solid rocket motor storage facility, the method comprising: When the stacker crane is working normally, the gravity sensing wheel remains stable, the speed sensing wheel rotates as the stacker crane runs, and the brake wedge maintains a preset gap with the running track. When the stacker crane falls, the gravity sensing wheel will swing due to the change in gravity, triggering a gravity sensing signal; the speed sensing wheel comes into contact with the stacker crane's running track. When the stacker crane's running speed exceeds the set safety threshold, the speed sensing wheel's rotation speed will generate a speed abnormality signal; when the triggering device receives the gravity sensing signal and the speed abnormality signal, it overcomes the spring force through the linkage structure and pushes the brake wedge to move towards the running track. The brake wedge clamps the running track with the speed sensing wheel.

[0038] This embodiment features sensitive triggering and reliable braking, significantly improving the safety and reliability of solid rocket motors and their components during transport in automated storage and retrieval systems (AS / RS). It prevents damage and accidents caused by stacker crane falls, ensuring safe and reliable operation and meeting the safety requirements of AS / RS. The gravity-velocity dual-sensor triggering mechanism accurately triggers the system the instantaneously upon stacker crane falls or overspeeding, greatly shortening response time and providing strong support for timely braking. The brake wedge in this embodiment features a unidirectional rack and pinion structure and utilizes special friction materials and surface treatment processes to increase friction. The braking device in this embodiment has a reasonable structural design, ensuring uniform force distribution during braking and effectively preventing swaying and slippage, significantly improving braking stability and reliability. The overall structural design of this embodiment is simple and clear, with easy-to-understand connections and assembly methods between components, facilitating installation and disassembly and reducing the difficulty and cost of installation and maintenance.

[0039] Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make possible changes and modifications to the technical solutions of the present invention by utilizing the methods and techniques disclosed above without departing from the spirit and scope of the present invention. Therefore, any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the content of the technical solutions of the present invention shall fall within the protection scope of the technical solutions of the present invention.

Claims

1. A fall protection safety device for a stacker crane in a solid rocket motor storage warehouse, characterized in that... include: Speed ​​sensor wheel (1), gravity sensor wheel (2), mounting bracket (3), braking device (5), and triggering device (6); among which, The speed sensing wheel (1) and the gravity sensing wheel (2) are both mounted on the triggering device (6); the gravity sensing wheel (2) is located below the speed sensing wheel (1); The speed sensing wheel (1) is in contact with the running track of the stacker crane; The triggering device (6) is mounted on the mounting bracket (3); The braking device (5) is mounted on the mounting bracket (3); When the stacker is working normally, there is a gap between the braking device (5) and the running track of the stacker.

2. The anti-fall safety device for a stacker crane in a solid rocket motor storage warehouse according to claim 1, characterized in that: The braking device (5) includes a brake caliper, a brake wedge, and a spring; wherein, The brake caliper is mounted on the mounting bracket (3); The brake wedge is disposed in the brake caliper body and can slide along the guide groove of the brake caliper body. The spring is disposed between the brake wedge and the bottom of the brake caliper. The triggering device (6) is connected to the spring through a linkage structure; The spring is in a compressed state, which keeps the brake wedge and the running track at a preset gap.

3. The anti-fall safety device for a stacker crane in a solid rocket motor storage warehouse according to claim 1, characterized in that: When the stacker falls, the gravity sensing wheel will swing due to the change in gravity, triggering a gravity sensing signal; the speed sensing wheel contacts the running track of the stacker. When the running speed of the stacker exceeds the set safety threshold, the speed sensing wheel will generate a speed abnormality signal due to the change in rotation speed; when the triggering device (6) receives the gravity sensing signal and the speed abnormality signal, it will overcome the spring force through the linkage structure and push the brake wedge to move towards the running track. The brake wedge and the speed sensing wheel clamp the running track.

4. The anti-fall safety device for a stacker crane in a solid rocket motor storage warehouse according to claim 1, characterized in that: Both the speed sensing wheel and the gravity sensing wheel are metal structures.

5. The anti-fall safety device for a stacker crane in a solid rocket motor storage warehouse according to claim 1, characterized in that: The triggering device (6) is a pull rod structure.

6. The anti-fall safety device for a stacker crane in a solid rocket motor storage warehouse according to claim 1, characterized in that: The braking device is trapezoidal.

7. The anti-fall safety device for a stacker crane in a solid rocket motor storage warehouse according to claim 1, characterized in that: The mounting bracket is a metal cuboid structure.

8. The anti-fall safety device for a stacker crane in a solid rocket motor storage warehouse according to claim 1, characterized in that: The triggering device (6) is mounted on the mounting bracket (3) by bolts, nuts and washers.

9. The anti-fall safety device for a stacker crane in a solid rocket motor storage warehouse according to claim 1, characterized in that: The braking device (5) is mounted on the mounting bracket (3) by bolts, nuts and washers.

10. A method of using the anti-fall safety device for a stacker crane in a solid rocket motor storage warehouse as described in any one of claims 1-9, characterized in that... include: When the stacker crane is working normally, the gravity sensing wheel remains stable, the speed sensing wheel rotates as the stacker crane runs, and the brake wedge maintains a preset gap with the running track. When the stacker crane falls, the gravity sensing wheel will swing due to the change in gravity, triggering a gravity sensing signal; the speed sensing wheel comes into contact with the stacker crane's running track. When the stacker crane's running speed exceeds the set safety threshold, the speed sensing wheel's rotation speed will generate a speed abnormality signal; when the triggering device receives the gravity sensing signal and the speed abnormality signal, it overcomes the spring force through the linkage structure and pushes the brake wedge to move towards the running track. The brake wedge clamps the running track with the speed sensing wheel.

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