Hydraulic single-box telescopic translation mechanism and hydraulic single-box translation hoist

Abstract

The hydraulic single-box telescopic translation mechanism and the hydraulic single-box translation sling are characterized in that the hydraulic single-box telescopic translation mechanism comprises a bottom beam, a translation push rod, translation oil cylinders, telescopic oil cylinders, a hook structure, a hook oil cylinder and an extension beam; the translation push rod is connected with a small cross beam on the bottom beam through a slide rail; the translation oil cylinders are separately arranged at two ends of the translation push rod and used to push the translation push rod to perform a translation action in the direction of the cart; the telescopic oil cylinders are separately arranged at the two ends of the translation push rod and used to drive the extension beam to perform a telescopic action; the hook structure is separately arranged at the two ends of the translation push rod; one end of the hook structure is connected with the translation push rod, and the other end of the hook structure is connected with an output end of the hook oil cylinder; the hook oil cylinder is installed on the translation push rod; when the hook oil cylinder performs an extension action, the hook structure is pushed to be connected and fixed with the telescopic oil cylinder to form a mechanical lock; and when the two translation oil cylinders perform an extension and a telescoping action, the translation push rod is pushed to perform a translation action in the direction of the cart. The hydraulic single-box telescopic translation mechanism can realize a translation micro-motion in the direction of the cart and solves the problem that the cart is difficult to accurately perform a micro-motion.

Description

Technical Field

[0001] This invention relates to the field of container crane technology, specifically to a hydraulic single-box telescopic and translational mechanism and a hydraulic single-box translational lifting device. Background Technology

[0002] With the continuous development of modern terminals, the efficiency requirements for container lifting operations are becoming increasingly stringent. Safe, reliable, and maneuverable hydraulic single-container spreaders are gaining popularity among users. Current container operations rely solely on the movement of the main unit to achieve maneuverability, which presents challenges in precise control and implementation.

[0003] In view of the above, there is an urgent need to develop a new type of lifting device that can not only meet the various functions of ordinary single-container lifting devices, but also solve the problem that the trolley is difficult to move precisely, and realize the translational micro-movement of the container in the direction of the trolley, so as to meet the operational needs of different scenarios. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the present invention aims to provide a hydraulic single-box telescopic translation mechanism and a hydraulic single-box translation lifting device. By configuring the micro-motion function of the trolley direction on the lifting device, it can not only meet the various functions of ordinary single-box lifting devices, but also realize the micro-motion of the trolley direction, effectively reducing the trolley movement, saving energy and reducing emissions, and solving the drawback of the difficulty in precise micro-motion of the trolley, thus greatly improving the work efficiency on the work site.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A first aspect of the present invention provides a hydraulic single-box telescopic translation mechanism, comprising a bottom beam, a translation push rod, a translation cylinder, a telescopic cylinder, a hook structure, a hook cylinder, and an extension beam;

[0007] The translation push rod is connected to the small crossbeam on the bottom beam via a slide rail;

[0008] The translation cylinders are located on both sides of the translation push rod and are used to push the translation push rod to perform translational movement in the direction of the trolley; one end of the translation cylinder is fixed to the bottom beam and the other end is connected to the translation push rod.

[0009] The telescopic cylinders are located on both sides of the translation push rod and are used to drive the extension beam to perform telescopic movements. One end of the telescopic cylinder is fixed to the translation push rod, and the other end is connected to the end beam of the extension beam.

[0010] The hook structure is located on both sides of the translation push rod; one end of the hook structure is connected to the translation push rod, and the other end is connected to the output end of the hook cylinder.

[0011] The hook cylinder is mounted on the translation push rod. When the hook cylinder extends, it pushes the hook structure to connect and fix with the telescopic cylinder to form a mechanical lock, so that the translation push rod is connected to the extension beams on both sides of it as one unit. When the two translation cylinders extend and retract, they push the translation push rod to perform a translational movement in the direction of the trolley, thereby driving the extension beams on both sides of the translation push rod to perform a translational movement in the direction of the trolley.

[0012] Preferably, the bottom beam is provided with a small crossbeam for connecting the translation push rod and a bottom beam translation cylinder seat for mounting the translation cylinder.

[0013] Preferably, the two ends of the translation push rod are provided with a push rod translation cylinder seat, a telescopic cylinder seat, a hook cylinder seat and a first hook seat;

[0014] Both ends of the translation push rod are connected to the first push rod shaft of the translation cylinder through the push rod translation cylinder seat, and the other end of the translation cylinder is connected to the bottom beam translation cylinder seat of the bottom beam through the bottom beam shaft.

[0015] Both ends of the translation push rod are connected to the push rod connecting shaft on the telescopic cylinder via telescopic cylinder seats, and the other end of the telescopic cylinder is connected to the end beam of the extension beam via an end beam connecting shaft.

[0016] Both ends of the translation push rod are connected to the second push rod shaft of the hook structure via the first hook seat, and the other end of the hook structure is connected to the hook shaft of the hook cylinder via the second hook seat. The other end of the hook cylinder is connected to the hook cylinder seat on the translation push rod via the third push rod shaft.

[0017] Preferably, both ends of the translation push rod are equipped with 20-foot and 40-foot sensing limit switches, and the telescopic cylinder is equipped with a sensing plate; when the two telescopic cylinders extend simultaneously to the sensing plate and sense the 40-foot sensing limit switch on the translation push rod, the lifting device reaches the 40-foot position; when the two telescopic cylinders retract simultaneously to the sensing plate and sense the 20-foot sensing limit switch on the translation push rod, the lifting device reaches the 20-foot position.

[0018] Preferably, the hook structure includes a hook rod connected to the translation push rod and a hook vertically disposed at one end of the hook rod; the hook rod is provided with a second push rod shaft connected to the translation push rod; and the hook is provided with a hook seat connected to the hook cylinder.

[0019] Preferably, the telescopic cylinder is provided with a hook stop, which, when the hook cylinder extends, pushes the hook of the hook structure to connect and fix with the hook stop of the telescopic cylinder to form a mechanical lock.

[0020] A second aspect of the present invention provides a hydraulic single-box translational lifting device, which is provided with a hydraulic single-box telescopic translational mechanism as described in the first aspect of the present invention.

[0021] The beneficial effects of the hydraulic single-box translational lifting device of the present invention are as follows:

[0022] 1. The hydraulic single-box telescopic translation mechanism and hydraulic single-box translation lifting device of the present invention, on the basis of satisfying the various functions of ordinary single-box lifting devices, add translation function, thereby realizing the translation and micro-movement of the lifting container to meet the operational needs of different scenarios.

[0023] 2. This invention configures the micro-motion kinetic energy of the trolley direction onto the lifting device and makes significant modifications to the telescopic translation mechanism. It adopts two telescopic hydraulic cylinders for drive, uses the telescopic hydraulic cylinders to replace the push rod function, and uses the translation hydraulic cylinder to push the translation push rod to realize the translation of the trolley direction, which greatly improves the on-site operation efficiency and its service life, effectively reduces the movement of the trolley, saves energy and reduces emissions, and solves the drawback of the trolley being difficult to move precisely.

[0024] 3. The hydraulic single-box translation spreader of this invention differs from other hydraulic single-box spreaders. It redesigns the bottom beam structure and telescopic cylinders to reduce weight, reduce translation resistance, and improve operational stability. This allows it to perform trolley directional movements, enabling better coordination with operators during container lifting operations to complete container loading and unloading tasks. It completely avoids the need for main unit operation for minor trolley directional movements during operation, thus making it suitable for a wider range of on-site working conditions. At the same time, it ensures that it can safely, reliably, and efficiently complete work tasks even under harsh and complex working conditions. Attached Figure Description

[0025] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0026] Figure 1 This is a schematic diagram of the telescopic translation mechanism of the present invention;

[0027] Figure 2 This is a schematic diagram of the 20-foot position of the hydraulic single-box translational lifting device of the present invention;

[0028] Figure 3 This is a partial schematic diagram of the 40-foot position of the hydraulic single-box translational lifting device of the present invention;

[0029] Figure 4 This is a schematic diagram of the hook structure of the present invention;

[0030] Figure 5 This is a schematic diagram of the hook structure of the present invention for unhooking;

[0031] In the diagram: 1. Extension beam; 2. Telescopic cylinder; 201. Hook stop; 202. Sensor plate; 203. Push rod connecting shaft; 204. End beam connecting shaft; 3. Hook structure; 301. Hook; 302. Second hook seat; 303. Second push rod shaft; 304. Hook rod; 4. Hook cylinder; 401. Hook shaft; 402. Third push rod shaft; 5. Translation cylinder; 501. First push rod shaft; 502. Bottom beam shaft; 6. Translation push rod; 601. Hook cylinder seat; 602. First hook seat; 603. 40-foot sensor limit; 604. Push rod translation cylinder seat; 605. Telescopic cylinder seat; 606. 20-foot sensor limit; 607. Slide rail; 7. Bottom beam; 701. Small crossbeam; 702. Bottom beam translation cylinder seat. Detailed Implementation

[0032] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way.

[0033] Existing container operations rely solely on the movement of the main unit to achieve trolley movement, which presents challenges in precise micro-motion control. To address this issue, this invention integrates micro-motion functionality into the spreader to meet on-site operational needs. The invention significantly modifies the working principle of the telescopic translation mechanism, employing two telescopic hydraulic cylinders to drive the system. These cylinders replace the original push rod function, and the translation effectively reduces trolley movement, resulting in energy savings and emission reductions. This also solves the problem of precise micro-motion of the trolley, greatly improving on-site operational efficiency and laying the foundation for safe, reliable, and efficient port operations. Ultimately, this significantly enhances the economic benefits of port operations.

[0034] The hydraulic single-box translation spreader of this invention differs from other hydraulic single-box spreaders in that it features a redesigned bottom beam structure and telescopic cylinders, reducing its weight, translation resistance, and improving operational stability. This hydraulic single-box translation spreader can perform trolley directional movements, allowing for better coordination with operators during container lifting operations to complete container loading and unloading tasks. It completely avoids the need for main unit operation for minor trolley directional movements during operation, thus making it suitable for a wider range of on-site working conditions. At the same time, it ensures safe, reliable, and efficient completion of tasks even under harsh and complex working conditions.

[0035] Combination Figures 1-5As shown, a hydraulic single-box telescopic translation mechanism of the present invention includes a base beam 7, a translation push rod 6, a translation cylinder 5, a telescopic cylinder 2, a hook structure 3, a hook cylinder 4, and an extension beam 1. The translation push rod 6 is connected to a small crossbeam 701 on the base beam 7 via a slide rail 607. The translation cylinders 5 are respectively located on both sides of the translation push rod 6, specifically, the two translation cylinders 5 are respectively located on opposite sides of the ends of the translation push rod 6, used to push the translation push rod 6 to perform translational movement in the direction of the trolley; one end of the translation cylinder 5 is fixed to the base beam 7, and the other end is connected to the translation push rod 6. The telescopic cylinders 2 are respectively located on both sides of the translation push rod 6, specifically, the two telescopic cylinders 2 are respectively located on opposite sides of the ends of the translation push rod 6, used to drive the extension beam 1 to perform telescopic movement and to switch between two working states of 20 feet and 40 feet for the lifting device; one end of the telescopic cylinder 2 is fixed to the translation push rod 6, and the other end is connected to the end beam of the extension beam 1. Hook structures 3 are located on both sides of the translation push rod 6. One end of hook structure 3 is connected to the translation push rod 6, and the other end is connected to the output end of hook cylinder 4. Hook cylinder 4 is mounted on the translation push rod 6, that is, hook structure 3 and hook cylinder 4 are respectively connected to the translation push rod 6, and the two are connected at one end to each other, forming a linkage mechanism. When hook cylinder 4 extends, it pushes hook structure 3 to connect and fix with telescopic cylinder 2 to form a mechanical lock, thereby connecting the translation push rod 6 with the extension beams 1 on both sides to become a whole. When the two translation cylinders 5 extend and retract, they push the translation push rod 6 to perform translational movement in the direction of the trolley. At this time, the translation push rod 6 drives the extension beams 1 on both sides to perform translational movement in the direction of the trolley, thereby realizing the micro-movement function of the lifting device in the direction of the trolley.

[0036] Combination Figure 1 , Figure 2 , Figure 3As shown, the bottom beam 7 supports the various components of the hydraulic single-box telescopic translation mechanism. It has a small crossbeam 701 and a bottom beam translation cylinder seat 702. The translation push rod 6 is connected to the small crossbeam 701 on the bottom beam 7 via a slide rail 607. The translation cylinder 5 is connected to the bottom beam translation cylinder seat 702 on the bottom beam 7 via a shaft 502 on the bottom beam 7. Both ends of the translation push rod 6 are equipped with a push rod translation cylinder seat 604, a telescopic cylinder seat 605, a hook cylinder seat 601, a first hook seat 602, a 20-foot sensor limit 606, and a 40-foot sensor limit 603. One translation cylinder 5 is located at one end, and it has a first push rod shaft 501 and a bottom beam 7 shaft 502. One telescopic cylinder 2 is located on one side, and it has a push rod connecting shaft 203, an end beam connecting shaft 204, a hook 301 stop block 201, and a sensor plate 202. Hook structures 3 are located at both ends of the translation push rod 6, including hook rod 304 and hook 301. Hook rod 304 is equipped with a second push rod shaft 303, and hook 301 is equipped with a hook 301 seat. One hook cylinder 4 is located on one side, and this hook cylinder 4 is equipped with a hook shaft 401 and a third push rod shaft 402. Extension beams 1 are respectively located on both sides of the translation push rod 6, and each extension beam 1 is equipped with an end beam.

[0037] Combination Figure 2 As shown, both ends of the translation push rod 6 are equipped with a push rod translation cylinder seat 604, a telescopic cylinder seat 605, a hook cylinder seat 601, and a first hook seat 602. Both ends of the translation push rod 6 are connected to the first push rod shaft 501 of the two translation cylinders 5 via the push rod translation cylinder seat 604. The other end of the translation cylinder 5 is connected to the bottom beam translation cylinder seat 702 of the bottom beam 7 via the bottom beam shaft 502. Since one end of the translation cylinder 5 is fixed to the bottom beam 7 and the other end is connected to the translation push rod 6, when the two translation cylinders 5 extend and retract, they can push the translation push rod 6 to move slightly left and right by 150mm at the center position of the bottom beam 1.

[0038] Combination Figure 2 , Figure 3As shown, both ends of the translation push rod 6 are connected to the push rod connecting shaft 203 on the telescopic cylinder 2 via the telescopic cylinder seat 605, and the other end of the telescopic cylinder 2 is connected to the end beam of the extension beam 1 via the end beam connecting shaft 204. Both ends of the translation push rod 6 are equipped with a 20-foot sensing limit 606 and a 40-foot sensing limit 603, and the telescopic cylinder 2 is equipped with a sensing plate 202. The telescopic cylinder 2 replaces the function of the original lower push rod of the lifting device. Since one end of the two telescopic cylinders 2 is fixed to the translation push rod 6 and the other end is connected to the end beam of the extension beam 1, the telescopic cylinder 2 drives the extension beam 1 to telescopically move when it extends and retracts. When both telescopic cylinders 2 extend to the sensing plate 202 and sense the 40-foot sensing limit 603 on the translation push rod 6, the lifting device reaches the 40-foot position; when both telescopic cylinders 2 retract to the sensing plate 202 and sense the 20-foot sensing limit 606 on the translation push rod 6, the lifting device reaches the 20-foot position. Therefore, the switching between the 20-foot and 40-foot working states of the lifting device can be completed by the extension and retraction of the telescopic cylinder 2.

[0039] Combination Figure 4 , Figure 5 As shown, both ends of the translation push rod 6 are connected to the second push rod shaft 303 of the hook structure 3 via the first hook seat 602. The other end of the hook structure 3 is connected to the hook shaft 401 of the hook cylinder 4 via the second hook seat 302. The other end of the hook cylinder 4 is connected to the hook cylinder seat 601 on the translation push rod 6 via the third push rod shaft 402. The hook structure 3 includes a hook rod 304 connected to the translation push rod 6 and a hook 301 vertically positioned at one end of the hook rod 304. The hook rod 304 is provided with a second push rod shaft 303 connected to the translation push rod 6; the hook 301 is provided with a hook 301 seat connected to the hook cylinder 4. The hook rod 304, hook 301, hook cylinder 4, and translation push rod 6 of the hook structure 3 constitute a four-bar linkage. In addition, the telescopic cylinder 2 is provided with a hook 301 stop block 201, which, combined with... Figure 5 As shown, when the hook cylinder 4 extends, the hook 301 of the hook structure 3 is connected and fixed to the hook 301 stop block 201 of the telescopic cylinder 2 through the linkage mechanism to form a mechanical lock. Therefore, when the hook is in the hook 301 position, the translation push rod 6 and the telescopic cylinder 2 form a mechanical lock. In the hook 301 state, the translation push rod 6 and the extension beams 1 on both sides form an integral part, which is equivalent to fixing two telescopic cylinders 2 on the translation push rod 6 to replace the original lower push rod of the lifting device. Therefore, when the two translation cylinders are in the hook 301 position, the translation push rod 6 is connected and fixed to the extension beams 1 on both sides to form a mechanical lock. 5. During the extension and retraction action, the translation push rod 6 is pushed to perform a translational movement in the direction of the trolley. The translation push rod 6 then pushes the two telescopic cylinders 2 to perform a translational movement in the direction of the trolley. The two telescopic cylinders 2 then drive the extension beam 1 to perform a translational movement in the direction of the trolley. That is, the translational movement of the trolley of the spreader can be completed through the extension and retraction action of the translation cylinder 5. It can be seen that the micro-movement function of the trolley in the direction of the spreader can effectively reduce the movement of the trolley, which not only saves energy and reduces emissions, but also solves the drawback that the trolley is difficult to move precisely.

[0040] The present invention also provides a hydraulic single-box translation lifting device, which is equipped with the above-mentioned hydraulic single-box telescopic translation mechanism, which can meet the requirements of precise box placement and greatly improve the work efficiency on the work site.

[0041] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A hydraulic single-box telescopic translation mechanism, characterized in that, It is installed on a single-box lifting device, which includes a bottom beam, a translation push rod, a translation cylinder, a telescopic cylinder, a hook structure, a hook cylinder, and an extension beam; The translation push rod is connected to the small crossbeam on the bottom beam via a slide rail; The translation cylinders are respectively located on both sides of the translation push rod. The two translation cylinders are respectively set on opposite sides of the two ends of the translation push rod to push the translation push rod to perform translational movement in the direction of the trolley. One end of the translation cylinder is fixed to the bottom beam, and the other end is connected to the translation push rod. The telescopic cylinders are respectively located on both sides of the translation push rod. The two telescopic cylinders are respectively set on opposite sides of the two ends of the translation push rod to drive the extension beam to perform telescopic movements and to switch between the two working states of the lifting device, namely 20 feet and 40 feet. One end of the telescopic cylinder is fixed to the translation push rod, and the other end is connected to the end beam of the extension beam. The hook structure is disposed on both sides of the translation push rod; one end of the hook structure is connected to the translation push rod, and the other end is connected to the output end of the hook cylinder; the hook structure includes a hook rod connected to the translation push rod and a hook vertically disposed at one end of the hook rod, the hook rod is provided with a second push rod shaft connected to the translation push rod; the hook is provided with a hook seat connected to the hook cylinder. The hook cylinder is mounted on the translation push rod, and the hook structure, hook cylinder, and translation push rod form a linkage mechanism. The telescopic cylinder is equipped with a hook stop. When the hook cylinder extends, it pushes the hook of the hook structure to connect and fix with the hook stop of the telescopic cylinder to form a mechanical lock, so that the translation push rod is connected to the extension beams on both sides as a whole. When the two translation cylinders extend and retract, they push the translation push rod to move slightly left and right by 150mm at the center position of the bottom beam to perform a translation movement in the direction of the trolley, thereby driving the extension beams on both sides of the translation push rod to perform a translation movement in the direction of the trolley.

2. The hydraulic single-box telescopic translation mechanism as described in claim 1, characterized in that, The bottom beam is provided with a small crossbeam for connecting the translation push rod and a bottom beam translation cylinder seat for mounting the translation cylinder.

3. The hydraulic single-box telescopic translation mechanism as described in claim 1, characterized in that, The two ends of the translation push rod are provided with a push rod translation cylinder seat, a telescopic cylinder seat, a hook cylinder seat and a first hook seat; Both ends of the translation push rod are connected to the first push rod shaft of the translation cylinder through the push rod translation cylinder seat, and the other end of the translation cylinder is connected to the bottom beam translation cylinder seat of the bottom beam through the bottom beam shaft. Both ends of the translation push rod are connected to the push rod connecting shaft on the telescopic cylinder via telescopic cylinder seats, and the other end of the telescopic cylinder is connected to the end beam of the extension beam via an end beam connecting shaft. Both ends of the translation push rod are connected to the second push rod shaft of the hook structure via the first hook seat, and the other end of the hook structure is connected to the hook shaft of the hook cylinder via the second hook seat. The other end of the hook cylinder is connected to the hook cylinder seat on the translation push rod via the third push rod shaft.

4. The hydraulic single-box telescopic translation mechanism as described in claim 3, characterized in that, Both ends of the translation push rod are equipped with 20-foot and 40-foot sensing limit switches, and the telescopic cylinder is equipped with a sensing plate. When both telescopic cylinders extend to the sensing plate and sense the 40-foot sensing limit switch on the translation push rod, the lifting device reaches the 40-foot position. When both telescopic cylinders retract to the sensing plate and sense the 20-foot sensing limit switch on the translation push rod, the lifting device reaches the 20-foot position.

5. A hydraulic single-box translational lifting device, characterized in that, It is equipped with a hydraulic single-box telescopic translation mechanism as described in any one of claims 1-4.

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