Electric lifting appliance of reach stacker for port containers

Abstract

The utility model relates to the field of reach stacks, in particular to an electric lifting appliance for a port container reach stacker, which comprises a mounting plate, a driving mechanism is arranged in the mounting plate, the driving mechanism is connected with two telescopic rods which are oppositely arranged, two lock heads are arranged at the end parts, far away from the mounting plate, of the telescopic rods, and the mounting plate is connected with a cantilever crane through a plurality of steel wire ropes; the electric lifting appliance of the reach stacker for the port containers further comprises a locking mechanism. The locking mechanism is used for locking the position between the mounting plate and the arm frame; first guide plates are arranged on the two opposite side faces of the mounting plate correspondingly. Compared with the prior art, repeated adjustment of the reach stacker is reduced, and the connecting efficiency of the lock head and the lock is improved.

Description

Technical Field

[0001] This utility model relates to the field of reach stackers, and in particular to an electric spreader for port container reach stackers. Background Technology

[0002] A container front crane, also known simply as a front crane, is a type of crane used for loading and unloading containers. It belongs to the category of lifting equipment and can also be considered a type of mobile machinery. Container front cranes are specifically designed for international containers, which have a uniform width but come in two length specifications: 20 feet and 40 feet. Container front cranes are mainly used for stacking containers and horizontal transport within terminals and yards. Compared to forklifts, they offer advantages such as maneuverability, ease of operation, good stability, lower wheel pressure, higher stacking depth, and higher yard utilization.

[0003] As disclosed in announcement number CN221140975U, an intelligent electric front-end crane includes a front-end crane and four locking heads. The operator's cab is located on the top left side of the front-end crane, and the boom is located on the top right side of the front-end crane. A pitch cylinder is located on both the front and rear sides of the top of the front-end crane, with one end movably connected to the boom. A mounting plate is located at the bottom of the boom, and the mounting plate has a mounting cavity inside.

[0004] While the above solution allows for adjustment of the lock head spacing, facilitating the connection of locks at the container corners, it necessitates repeated adjustments to the front crane position when placing the mounting plate on the container top, resulting in low lock head connection efficiency. Utility Model Content

[0005] To address the problem that repeatedly adjusting the position of the front crane is required when placing the mounting plate on the top of the container, resulting in low connection efficiency of the locking device, this utility model provides an electric spreader for port container front cranes.

[0006] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0007] An electric spreader for port container reach stacks includes a mounting plate with a drive mechanism connected to it. Two telescopic rods are positioned opposite each other, and two locking heads are located at the ends of the telescopic rods furthest from the mounting plate. The mounting plate and the boom are connected by several wire ropes. The spreader also includes a locking mechanism to lock the position of the mounting plate and the boom. Guide plates are located on opposite sides of the mounting plate. In use, the mounting plate is placed on top of the container and then lowered. During the descent, the guide plates guide the mounting plate to directly above the container. The telescopic rods are adjusted to align the locking heads with the container's locking mechanism, reducing repeated adjustments to the reach stacker and improving the locking head connection efficiency. After the locking heads are connected, the locking mechanism activates, fixing the position of the boom and mounting plate, facilitating container lifting and unloading.

[0008] Preferably, a first disc is fixedly installed on the bottom surface of the boom end; a second disc is fixedly installed in the middle of the top surface of the mounting plate; several steel wire ropes are evenly arranged along the circumference of one edge of the disc, and the end of the steel wire rope away from the first disc is connected to the edge of the second disc. This ensures the stability of the connection between the first disc and the second disc.

[0009] Preferably, four grooves are evenly arranged along the circumference at one edge of the disc; four grooves are evenly arranged along the circumference at the other edge of the disc; the cross-sections of grooves one and groove two are both L-shaped, and the two ends of the wire rope are fixed at the corresponding grooves one and two, respectively.

[0010] Preferably, the locking mechanism includes an electric push rod fixedly mounted inside the boom; the piston rod of the electric push rod is connected to an insert rod; the insert rod passes through a disc; a slot is provided on the disc to accommodate the insert rod. The insert rod is inserted into the slot, thereby limiting the displacement between the mounting plate and the boom.

[0011] Preferably, the end of the insertion rod furthest from the electric push rod is rectangular in shape; the edge of the insertion rod end is chamfered; and the edge of the slot is rounded. The chamfered edge and rounded corners facilitate insertion of the insertion rod into the slot.

[0012] Preferably, guide plate one includes a vertical part connected to the mounting plate, and a folded edge is connected to the end of the vertical part away from the mounting plate; guide plate two is fixedly installed at the bottom edge of the end of the telescopic rod. Guide plate one can guide the mounting plate in the front-back direction, and guide plate two can guide the mounting plate in the left-right direction, making it convenient to guide the mounting plate to be directly above the container.

[0013] As can be seen from the above technical solution, the advantages of this utility model include: In use, the mounting plate is placed above the container, and then lowered. During the descent, a guide plate guides the mounting plate to directly above the container. The telescopic rod is adjusted to align the lock head with the container lock, reducing repeated adjustments by the front crane and improving the lock head and lock connection efficiency. After the lock head and lock are connected, the locking mechanism activates, fixing the position of the boom and mounting plate, facilitating container lifting and unloading. Attached Figure Description

[0014] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0015] Figure 1 This is a schematic diagram of the structure of this utility model.

[0016] Figure 2 This is a partial cross-sectional structural diagram of the present invention.

[0017] Figure 3 This is a cross-sectional structural diagram of the present invention.

[0018] Explanation of main figure symbols

[0019] 1-Mounting plate, 2-Telescopic rod, 3-Lock head, 4-Boom, 5-Wire rope, 6-Electric push rod, 7-Plug;

[0020] 101-Guide plate one, 102-Disc two, 103-Groove two, 104-Slot; 201-Guide plate two; 401-Disc one, 402-Groove one. Detailed Implementation

[0021] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0022] like Figure 1-3As shown, a port container front-end crane electric spreader includes a mounting plate 1, within which a drive mechanism is installed. The drive mechanism is connected to two opposing telescopic rods 2. The drive mechanism is prior art and will not be described in detail here. A fixing plate is installed at the end of the telescopic rod 2 away from the mounting plate 1, and a lock head 3 is installed at both ends of the bottom surface of the fixing plate. Guide plates 101 are provided on opposite sides of the mounting plate 1. Guide plate 101 includes a vertical portion connected to the mounting plate 1, and a folded edge is connected to the end of the vertical portion away from the mounting plate 1, with the folded edge bent in a direction away from the mounting plate 1. A second guide plate 201 is fixedly installed at the bottom edge of the end of the telescopic rod 2. The second guide plate 201 is located outside the lock head 3, and the entire guide plate 201 is inclined in a direction away from the lock head 3. Guide plate 101 guides the mounting plate 1 in the front-back direction, and guide plate 201 guides the mounting plate 1 in the left-right direction, facilitating the guidance of the mounting plate 1 to be directly above the container.

[0023] A disc 401 is fixedly mounted on the bottom surface of the boom 4 end; four grooves 402 are evenly arranged circumferentially along the edge of the disc 401; a disc 102 is fixedly mounted in the center of the top surface of the mounting plate 1; four wire ropes 5 are evenly arranged circumferentially along the edge of the disc 401, with the end of the wire rope 5 away from the disc 401 connected to the edge of the disc 102. Four grooves 103 are evenly arranged circumferentially along the edge of the disc 102; both grooves 402 and 103 have L-shaped cross-sections. One end of the wire rope 5 is connected to the groove 402, and the other end is connected to the groove 103, ensuring the stability of the connection between the discs 401 and 102.

[0024] The port container reach stack electric spreader also includes a locking mechanism; the locking mechanism is used to lock the position between the mounting plate 1 and the boom 4; the locking mechanism includes an electric push rod 6 fixedly installed inside the boom 4; the piston rod of the electric push rod 6 is connected to an insertion rod 7; the insertion rod 7 is installed through a disc 401; a slot 104 is provided on the disc 102 to cooperate with the insertion rod 7. The insertion rod 7 is inserted into the slot 104, which can limit the displacement between the mounting plate 1 and the boom 4. The end of the insertion rod 7 away from the electric push rod 6 is generally rectangular; the edge of the insertion rod 7 is chamfered; the edge of the slot 104 is rounded. The chamfered edge and rounded corner are designed to facilitate the insertion of the insertion rod into the slot.

[0025] In use, based on the container length, the telescopic boom is pre-extended and fixed using a drive mechanism. The front crane places the mounting plate 1 above the container, then controls the mounting plate 1 to fall. The electric push rod 6 drives the insertion rod 7 to retract and disengage from the disc 102. During the fall, guide plates 101 and 201 guide the mounting plate 1 to be directly above the container, aligning the lock head 3 with the container lock. This avoids repeated adjustments by the front crane and improves the locking efficiency of the lock head 3. After the lock head 3 is connected, the locking mechanism activates, and the electric push rod 6 drives the insertion rod 7 to insert into the slot 104, fixing the position of the boom 4 and the mounting plate 1, facilitating container lifting and unloading.

[0026] In other alternative embodiments, only guide plate 101 is provided, and guide plate 201 is not provided. During the descent of mounting plate 1, guide plate 1 is guided to the top of the container using guide plate 101, and the telescopic rod 2 is adjusted by the drive mechanism to align the lock head 3 with the container lock, which reduces the adjustment time of the front crane and improves the connection efficiency of the lock head 3.

[0027] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A port container front-end crane electric spreader, comprising a mounting plate (1), a drive mechanism disposed within the mounting plate (1), the drive mechanism being connected to two opposing telescopic rods (2), the ends of the telescopic rods (2) furthest from the mounting plate (1) being provided with two locking heads (3), characterized in that, The mounting plate (1) and the boom (4) are connected by several steel wire ropes (5); the port container front crane electric spreader also includes a locking mechanism; the locking mechanism is used to lock the position between the mounting plate (1) and the boom (4); guide plates (101) are provided on both opposite sides of the mounting plate (1).

2. The port container reach stacker electric spreader according to claim 1, characterized in that, A disc (401) is fixedly installed on the bottom surface of the boom (4); a disc (102) is fixedly installed in the middle of the top surface of the mounting plate (1); several steel wire ropes (5) are evenly arranged along the circumference at the edge of the disc (401), and the end of the steel wire rope (5) away from the disc (401) is connected to the edge of the disc (102).

3. The port container reach stacker electric spreader according to claim 2, characterized in that, Four grooves (402) are evenly arranged along the circumference of the edge of the first disc (401); four grooves (103) are evenly arranged along the circumference of the edge of the second disc (102); the cross sections of grooves (402) and grooves (103) are both L-shaped, and the two ends of the wire rope (5) are fixed at the corresponding grooves (402) and grooves (103) respectively.

4. The port container reach stacker electric spreader according to claim 2, characterized in that, The locking mechanism includes an electric push rod (6) fixedly installed in the boom (4); the piston rod of the electric push rod (6) is connected to a plug rod (7); the plug rod (7) passes through the first disc (401); the second disc (102) is provided with a slot (104) to cooperate with the plug rod (7).

5. The port container reach stacker electric spreader according to claim 4, characterized in that, The end of the insertion rod (7) away from the electric push rod (6) is set in a rectangular rod shape; the edge of the insertion rod (7) is chamfered; the edge of the slot (104) is rounded.

6. The port container reach stacker electric spreader according to claim 1, characterized in that, Guide plate one (101) includes a vertical part connected to the mounting plate (1), and the end of the vertical part away from the mounting plate (1) is connected to a folded edge; guide plate two (201) is fixedly installed at the bottom edge of the end of the telescopic rod (2).

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