Wrench for correcting chain of reach stacker

Abstract

The utility model relates to the technical field of tools for correcting a chain of a reach stacker, and particularly discloses a wrench for correcting the chain of the reach stacker, which comprises a ratchet wrench, and a connecting rod is fixedly arranged on the outer wall of the ratchet wrench; one end of the connecting rod away from the ratchet wrench is connected with an extension rod through an angle adjusting mechanism; the angle adjusting mechanism is used for adjusting the included angle between the connecting rod and the extension rod. Compared with the prior art, the ratchet wrench is used for sleeving the nut of the chain, the angle adjusting mechanism is used for adjusting the included angle between the connecting rod and the extension rod, the end of the extension rod extends out of the reach stacker telescopic arm barrel, interference is reduced, the stroke of the ratchet wrench is guaranteed, maintenance efficiency is improved, and personal injury is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of tools for calibrating the chains of reachstackers, and specifically discloses a wrench for calibrating the chains of reachstackers. Background Technique

[0002] A reachstacker is a lifting device specifically designed for 20-foot and 40-foot international containers, mainly used for the stacking of containers and the horizontal transportation in docks and yards. Compared with forklifts, it has the advantages of being flexible, easy to operate, stable, having relatively low wheel pressure, high stacking layers, and high yard utilization rate. The reachstacker can perform cross-container operations, and is especially suitable for the loading and unloading of containers at small and medium-sized ports, railway transfer stations, and highway transfer stations. It can also be used as an auxiliary device at large container terminals.

[0003] As a key component of the equipment, the chains of the reachstacker play a crucial role in the loading, unloading, and transportation of containers. In the equipment, the chains of the reachstacker are mainly used to connect the containers and the spreaders: the chains connect the containers and the spreaders through connecting parts such as hooks to realize the lifting and transportation of the containers.

[0004] During the daily use of the reachstacker, the chains need to be adjusted regularly. This requires maintenance personnel to reach their arms into the holes on both sides of the telescopic boom cylinders and then use an open-end wrench for corresponding adjustment. However, due to the relatively narrow maintenance space, when using an open-end wrench, an effective stroke cannot be obtained to adjust the chain nuts. In addition, the specification size of the fixed nuts is relatively large, and there is no other tool that can effectively adjust them. This not only greatly reduces the maintenance efficiency but also easily causes personal injuries due to improper use of tools. Content of the Utility Model

[0005] In view of the above deficiencies of the prior art, the utility model provides a wrench for calibrating the chains of a reachstacker to solve the problems that when adjusting the chains in the narrow space of the telescopic boom cylinder of the reachstacker, an effective stroke cannot be obtained when using an open-end wrench, which reduces the maintenance efficiency and is also prone to personal injuries caused by improper use of tools.

[0006] To achieve the above object, the technical solution of the utility model is as follows:

[0007] A wrench for calibrating the chains of a reachstacker includes a ratchet wrench. A connecting rod is fixedly arranged on the outer wall of the ratchet wrench. One end of the connecting rod away from the ratchet wrench is connected with an extension rod through an angle adjusting mechanism. The angle adjusting mechanism is used to adjust the included angle between the connecting rod and the extension rod. The ratchet wrench is used to hold the nut of the chain, and the angle adjusting mechanism is used to adjust the included angle between the connecting rod and the extension rod, so that the end of the extension rod extends out of the telescopic boom cylinder of the reachstacker, reducing interference, ensuring the stroke of the ratchet wrench, improving the maintenance efficiency, and avoiding personal injuries.

[0008] Preferably, a force - adding joint is provided at one end of the extension rod away from the angle - adjusting mechanism. It is convenient to externally connect a socket wrench to extend the force arm.

[0009] Preferably, the connecting rod includes a fixed rod; the fixed rod is fixedly arranged on the ratchet wrench; the fixed rod is slidably arranged in the sleeve; a number of through - holes are provided on both the fixed rod and the sleeve; a first bolt is arranged in the through - hole. The length of the connecting rod can be adjusted, which is convenient for adjusting the chain nuts in the telescopic boom cylinder of different reach stackers, increasing the scope of application.

[0010] Preferably, the angle - adjusting mechanism includes a connecting block fixedly arranged at the end of the sleeve; a groove is provided on the connecting block; the extension rod is hinged in the groove and fixed to the connecting block by a second bolt. The extension rod is fixed in the connecting block by the second bolt, thereby realizing the function of adjusting the angle between the extension rod and the connecting rod.

[0011] Preferably, a hinge shaft is fixedly arranged at one end of the extension rod; a hinge hole is provided on the connecting block; the hinge shaft is rotatably arranged in the hinge hole.

[0012] Preferably, a first through - hole is provided on the extension rod; the first through - hole is arranged near the hinge of the extension rod and the connecting block; a second through - hole and a third through - hole are provided on the connecting block; the connecting line of the center lines of the second through - hole and the hinge hole is parallel to the center line of the connecting rod; the connecting line of the center lines of the third through - hole and the hinge hole is perpendicular to the center line of the connecting rod. By setting the second bolt in the second through - hole and the first through - hole, the angle between the extension rod and the connecting rod is fixed at 180°; by setting the second bolt in the third through - hole and the first through - hole, the angle between the extension rod and the connecting rod is fixed at 90°.

[0013] The beneficial effects of the present utility model are as follows: The nut of the chain is held by the ratchet wrench, the angle between the connecting rod and the extension rod is adjusted by the angle - adjusting mechanism, the end of the extension rod extends out of the telescopic boom cylinder of the reach stacker, reducing interference, ensuring the stroke of the ratchet wrench, improving the maintenance efficiency, and avoiding personal injury. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, for those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0015] Figure 1 It is a schematic structural diagram of the present utility model;

[0016] Figure 2 It is a schematic structural diagram of the ratchet wrench and the fixed rod of the present utility model;

[0017] Figure 3Structural schematic diagram of the sleeve and connecting block of the present utility model;

[0018] Figure 4 Cross-sectional schematic diagram of the sleeve and connecting block of the present utility model;

[0019] Figure 5 Structural schematic diagram of the extension rod and the force - adding joint of the present utility model.

[0020] Explanation of reference numerals:

[0021] Ratchet wrench, 2 - connecting rod, 3 - extension rod, 4 - force - adding joint, 5 - connecting block, 6 - bolt two; 201 - fixed rod, 202 - sleeve, 203 - bolt one; 301 - through - hole one, 302 - hinge shaft; 501 - groove, 502 - through - hole two, 503 - through - hole three, 504 - hinge hole. Detailed implementation manners

[0022] In order to enable those skilled in the art to better understand the technical solutions in the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present utility model.

[0023] As Figures 1-5 shown, a wrench for calibrating the chain of a reach stacker includes a ratchet wrench 1, and a connecting rod 2 is fixedly arranged on the outer wall of the ratchet wrench 1; one end of the connecting rod 2 far from the ratchet wrench 1 is connected with an extension rod 3 through an angle - adjusting mechanism; the angle - adjusting mechanism is used to adjust the included angle between the connecting rod 2 and the extension rod 3. The ratchet wrench 1 is used to sleeved on the nut of the chain, and the included angle between the connecting rod 2 and the extension rod 3 is adjusted by the angle - adjusting mechanism, so that the end of the extension rod 3 extends out of the telescopic boom cylinder of the reach stacker, reducing interference, ensuring the stroke of the ratchet wrench 1, improving the maintenance efficiency, and avoiding personal injury. A force - adding joint 4 is arranged at one end of the extension rod 3 far from the angle - adjusting mechanism. It is convenient to externally connect a socket wrench to extend the force arm.

[0024] In the above setting, the connecting rod 2 includes a fixed rod 201; the fixed rod 201 is fixedly arranged on the ratchet wrench 1; the fixed rod 201 is slidably arranged in the sleeve 202; a plurality of through - holes are arranged on both the fixed rod 201 and the sleeve 202; a bolt one 203 is arranged in the through - hole. The length of the connecting rod 2 can be adjusted, which is convenient for adjusting the chain nuts in different telescopic boom cylinders of the reach stacker and increasing the scope of application.

[0025] Among them, the angle adjustment mechanism includes a connection block 5 fixedly arranged at the end of the sleeve 202; a groove 501 is arranged on the connection block 5; the extension rod 3 is hinged in the groove 501 and fixed to the connection block 5 by a second bolt 6. The extension rod 3 is fixed in the connection block 5 by the second bolt 6, thereby realizing the function of adjusting the included angle between the extension rod 3 and the connecting rod 2. A hinge shaft 302 is fixedly arranged at one end of the extension rod 3; a hinge hole 504 is arranged on the connection block 5; the hinge shaft 302 is rotatably arranged in the hinge hole 504. A first through hole 301 is arranged on the extension rod 3; the first through hole 301 is arranged near the hinge of the extension rod 3 and the connection block 5; a second through hole 502 and a third through hole 503 are arranged on the connection block 5; the connecting line of the center lines of the second through hole 502 and the hinge hole 504 is parallel to the center line of the connecting rod 2; the connecting line of the center lines of the third through hole 503 and the hinge hole 504 is perpendicular to the center line of the connecting rod 2. The included angle between the extension rod 3 and the connecting rod 2 is fixed at 180° by arranging the second bolt 6 in the second through hole 502 and the first through hole 301; the included angle between the extension rod 3 and the connecting rod 2 is fixed at 90° by arranging the second bolt 6 in the third through hole 503 and the first through hole 301.

[0026] Although the present invention has been described in detail by referring to the accompanying drawings and in combination with the preferred embodiments, the present invention is not limited thereto. Without departing from the spirit and essence of the present invention, those of ordinary skill in the art can make various equivalent modifications or substitutions to the embodiments of the present invention, and these modifications or substitutions should all be within the scope of the present invention. / Any person skilled in the art in the technical field disclosed by the present invention can easily think of changes or substitutions within the technical scope disclosed by the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be subject to the protection scope of the claimed rights.

Claims

1. A wrench for calibrating the chains of a reach stacker, comprising a ratchet wrench (1), characterized in that, A connecting rod (2) is fixedly arranged on the outer wall of a ratchet wrench (1); one end of the connecting rod (2) far away from the ratchet wrench (1) is connected with an extension rod (3) through an angle adjusting mechanism; the angle adjusting mechanism is used for adjusting the included angle between the connecting rod (2) and the extension rod (3). The connecting rod (2) includes a fixed rod (201); the fixed rod (201) is fixedly arranged on the ratchet wrench (1); the fixed rod (201) is slidably arranged in a sleeve (202); a plurality of through holes are arranged on both the fixed rod (201) and the sleeve (202); a bolt one (203) is arranged in the through holes. The angle adjusting mechanism includes a connecting block (5) fixedly arranged at the end of the sleeve (202); a groove (501) is arranged on the connecting block (5); the extension rod (3) is hinged in the groove (501) and is fixed on the connecting block (5) through a bolt two (6).

2. The spanner for calibrating the front suspension chain according to claim 1, characterized in that, A force adding joint (4) is arranged at one end of the extension rod (3) far away from the angle adjusting mechanism.

3. The wrench for calibrating the front suspension chain according to claim 2, characterized in that, A hinge shaft (302) is fixedly arranged at one end of the extension rod (3); a hinge hole (504) is arranged on the connecting block (5); the hinge shaft (302) is rotatably arranged in the hinge hole (504).

4. The wrench for calibrating the front crane chain according to claim 3, characterized in that, A through hole one (301) is arranged on the extension rod (3); the through hole one (301) is arranged close to the hinge position of the extension rod (3) and the connecting block (5); a through hole two (502) and a through hole three (503) are arranged on the connecting block (5); the connecting line of the center lines of the through hole two (502) and the hinge hole (504) is parallel to the center line of the connecting rod (2); the connecting line of the center lines of the through hole three (503) and the hinge hole (504) is perpendicular to the center line of the connecting rod (2).

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