Overload protection device of rail type container portal crane

Abstract

The utility model relates to an overload protection device for a rail-mounted container gantry crane, which belongs to the field of rail-mounted container gantry cranes and comprises a rack, an insertion protection component and a fixing component are arranged on the rack, and the insertion protection component comprises a connecting piece arranged at the bottom of the rack. According to the overload protection device for the rail type container portal crane, the first protection shell and the second protection shell are mounted and limited on the outer side of the shaft pin weighing sensor by mounting the insertion protection assembly, so that the shaft pin weighing sensor is protected, and the situations of collision, interference and the like of the shaft pin weighing sensor are reduced; the service life of the shaft pin weighing sensor is prolonged, the quality of the shaft pin weighing sensor is improved, the safety and efficiency of weighing operation are improved, the first protective shell and the second protective shell are further installed and limited by installing the fixing assembly, the first protective shell and the second protective shell are firmly installed on the outer side of the shaft pin weighing sensor, and the use quality of the device is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of rail mounted container gantry crane, concretely is a rail mounted container gantry crane overloading protection device. BACKGROUND

[0002] Rail mounted container gantry crane is a kind of hoisting equipment based on track operation, hoisting operation is carried out using portal structure, mainly used for the loading and unloading, handling and stacking of container, the pin shaft weight sensor on rail mounted container gantry crane, i.e. shaft pin type load cell, is a kind of specially designed sensor, used to directly measure and transmit the weight or force on the shaft during hoisting operation, to realize accurate weighing while lifting heavy objects, improve work efficiency, save time and space.

[0003] Please refer to the announcement number CN206466906U a kind of rail mounted container gantry crane, specifically rail mounted container gantry crane overloading protection device, it includes first pin shaft, support, pull plate group, pin shaft weight sensor, connecting plate, second pin shaft and steel wire rope assembly......connecting plate lower end is equipped with steel wire rope assembly, connecting plate and steel wire rope assembly are jointly sleeved on second pin shaft;The utility model does not need to disassemble pin shaft weight sensor when replacing lifting steel wire rope, avoids damaging pin shaft weight sensor while pulling down the fixed end of lifting steel wire rope, simultaneously avoids the period problem that pin shaft weight sensor needs to be re-purchased.

[0004] In the above patent, the shaft pin type load cell exposed to the outside is not provided with a protection assembly, and the shaft pin type load cell exposed to the outside is prone to collision, damage, wear and interference, thereby affecting the measurement accuracy and stability of the sensor and the safety and efficiency of hoisting operation. Another technical solution is proposed to solve the technical problem. UTILITY MODEL CONTENTS

[0005] In view of the deficiencies of the prior art, the utility model provides a rail mounted container gantry crane overloading protection device, which has the advantages of installation protection and solves the problem that the shaft pin type load cell exposed to the outside is not provided with a protection assembly, and the shaft pin type load cell exposed to the outside is prone to collision, damage, wear and interference, thereby affecting the measurement accuracy and stability of the sensor and the safety and efficiency of hoisting operation.

[0006] To achieve the above purpose, the utility model provides the following technical scheme: a rail mounted container gantry crane overloading protection device, comprising a rack, the rack is provided with plug-in protection assembly, the rack is provided with fixed assembly;

[0007] The plug-in protection assembly comprises a connecting piece arranged at the bottom of the rack, an axle pin load cell is arranged in the connecting piece, a steel wire rope is arranged at the bottom of the connecting piece, a first protection shell and a second protection shell are respectively plugged in at both sides of the connecting piece.

[0008] The top of the first protection shell and the second protection shell is fixedly installed with a mounting block, the inside of the two mounting blocks is provided with a moving assembly, the opposite side of the two moving assemblies is fixedly installed with a plug-in rod, and the opposite side of the first protection shell and the second protection shell is plugged with a sealing strip.

[0009] Further, the fixing assembly comprises vertical blocks fixedly installed outside the first protection shell and the second protection shell, threaded rods are penetrated through the inside of the two vertical blocks, and nuts are threadedly connected to both ends of the two threaded rods.

[0010] Further, the moving assembly comprises guide plates slidingly installed in the inside of the two mounting blocks, extrusion springs are fixedly installed on the opposite side of the two guide plates, ropes are fixedly installed on the opposite side of the two guide plates, and rotating rods are rotatably installed at the bottom of the inner wall of the two mounting blocks.

[0011] Further, the opposite side of the two sealing strips is fixedly installed with a clamping block, the opposite side of the first protection shell and the second protection shell is provided with a clamping groove, and the clamping block is clamped with the first protection shell and the second protection shell through the clamping groove.

[0012] Further, the opposite side of the two mounting blocks is provided with an extension hole, the plug-in rod penetrates through the extension hole to the outside of the mounting block, the two sides of the connecting piece are provided with plug-in holes, and the plug-in rod is plugged with the connecting piece through the plug-in holes.

[0013] Further, the inside of the two mounting blocks is fixedly installed with a fixed block, one end of the extrusion spring is fixedly connected with the fixed block, and the rope is rotatably installed on the outside of the rotating rod.

[0014] Further, the inside of the two mounting blocks is provided with a sliding groove, and the guide plate is slidingly connected with the mounting block through the sliding groove.

[0015] Further, the top of the two mounting blocks is provided with a penetration hole, the rotating rod extends to the outside of the mounting block through the penetration hole, and a connecting disc is fixedly installed on the top of the rotating rod.

[0016] Compared with the prior art, the technical scheme of the present application has the following beneficial effects:

[0017] The rail-mounted container gantry crane overload protection device, by installing the plug-in protection assembly, installs and limit the first protection shell and the second protection shell on the outside of the shaft pin load sensor, so as to protect the shaft pin load sensor, reduce the collision, interference and other conditions of the shaft pin load sensor, improve the service life and quality of the shaft pin load sensor, and further improve the safety and efficiency of the heavy operation, by installing the fixing assembly, further installing and limiting the first protection shell and the second protection shell, so that the first protection shell and the second protection shell are firmly installed on the outside of the shaft pin load sensor, improve the quality of the device. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 It is a schematic sectional view of the utility model structure;

[0019] Figure 2 It is a part structure front view of the utility model;

[0020] Figure 3 It is the utility model Figure 1 A structure enlarged view;

[0021] Figure 4 It is the first protection shell structure of the utility model.

[0022] In the drawing: 1, rack;2, connecting piece;3, shaft pin load sensor;4, steel wire rope;5, first protection shell;6, second protection shell;7, mounting block;8, plug-in rod;9, sealing strip;10, vertical block;11, threaded rod;12, nut;13, guide plate;14, extrusion spring;15, rope;16, rotating rod. DETAILED DESCRIPTION

[0023] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0024] Please refer to Figures 1 to 4 A rail-mounted container gantry crane overload protection device in the embodiment comprises a rack 1, the rack 1 is provided with a plug-in protection assembly, and the rack 1 is provided with a fixing assembly.

[0025] Embodiment one: the plug-in protection assembly comprises a connecting piece 2 arranged at the bottom of the rack 1, the connecting piece 2 is internally provided with a shaft pin load sensor 3, the bottom of the connecting piece 2 is provided with a steel wire rope 4, and the two sides of the connecting piece 2 are respectively plugged with a first protection shell 5 and a second protection shell 6.

[0026] The top of the first protective shell 5 and the second protective shell 6 is fixedly installed with a mounting block 7, the inside of the two mounting blocks 7 is provided with a moving assembly, the opposite side of the two moving assemblies is fixedly installed with a plug-in rod 8, the opposite side of the two mounting blocks 7 is provided with an extension hole, the plug-in rod 8 penetrates through the extension hole to the outside of the mounting block 7, the two sides of the connecting piece 2 are provided with plug-in holes, the plug-in rod 8 is plugged with the connecting piece 2 through the plug-in hole, which is convenient for preliminarily limiting the first protective shell 5 and the second protective shell 6.

[0027] The opposite side of the first protective shell 5 and the second protective shell 6 is plugged with a sealing strip 9, the opposite side of the two sealing strips 9 is fixedly installed with a clamping block, the opposite side of the first protective shell 5 and the second protective shell 6 is provided with a clamping groove, and the clamping block is clamped with the first protective shell 5 and the second protective shell 6 through the clamping groove, which reduces the damage of rainwater penetrating into the first protective shell 5 and the second protective shell 6 to the shaft pin load sensor 3 in rainy days.

[0028] The moving assembly includes a guide plate 13 slidably installed in the inside of the two mounting blocks 7, the inside of the two mounting blocks 7 is provided with a sliding slot, the guide plate 13 is slidably connected with the mounting block 7 through the sliding slot, which provides guidance for the movement of the plug-in rod 8, so that the plug-in rod 8 moves more conveniently.

[0029] The opposite side of the two guide plates 13 is fixedly installed with a squeeze spring 14, the opposite side of the two guide plates 13 is fixedly installed with a rope 15, the inside of the two mounting blocks 7 is fixedly installed with a fixed block, one end of the squeeze spring 14 is fixedly connected with the fixed block, and the rope 15 is rotatably installed on the outside of the rotating rod 16.

[0030] The inside wall bottom of the two mounting blocks 7 is rotatably installed with a rotating rod 16, the top of the two mounting blocks 7 is provided with a through hole, the rotating rod 16 extends to the outside of the mounting block 7 through the through hole, and the top of the rotating rod 16 is fixedly installed with a connecting disc.

[0031] It should be noted that the track type container portal crane overload protection device is provided with a plug-in protection assembly, the first protective shell 5 and the second protective shell 6 are installed and limited outside the shaft pin load sensor 3, so as to protect the shaft pin load sensor 3, reduce the collision and interference of the shaft pin load sensor 3, improve the service life and quality of the shaft pin load sensor 3, and further improve the safety and efficiency of the operation.

[0032] Specifically, when the first protective shell 5 and the second protective shell 6 are installed, the connecting piece is manually twisted to rotate the two rotating rods 16, and then the two guide plates 13 are driven by the ropes 15 to move synchronously, so that the compression springs 14 are compressed, the plug-in rod 8 is moved and stored in the installation block 7, then the first protective shell 5 and the second protective shell 6 are clamped on both sides of the connecting piece 2, the shaft pin load cell 3 is covered in the first protective shell 5 and the second protective shell 6, then the two rotating rods 16 are rotated in the opposite direction, so that the compression springs 14 are reset, the first protective shell 5 and the second protective shell 6 are preliminarily fixed on both sides of the connecting piece 2 by the plug-in rod 8 and the connecting piece 2, in order to protect the shaft pin load cell 3, reduce the collision, interference and other conditions of the shaft pin load cell 3, and improve the service life and quality of the shaft pin load cell 3.

[0033] Example two: please refer to Figure 1 On the basis of example one, the fixed assembly is further arranged on the rack 1, the fixed assembly includes vertical blocks 10 fixedly installed outside the first protective shell 5 and the second protective shell 6, and the inside of the two groups of vertical blocks 10 is provided with a hole, so that the threaded rod 11 penetrates and installs.

[0034] The inside of the two groups of vertical blocks 10 penetrates the threaded rod 11, and the two ends of the two threaded rods 11 are threadedly connected with the nuts 12.

[0035] It should be noted that the track type container gantry crane overload protection device is further installed and limited by the fixed assembly, so that the first protective shell 5 and the second protective shell 6 are firmly installed outside the shaft pin load cell 3, and the quality of the device is improved.

[0036] Specifically, after the first protective shell 5 and the second protective shell 6 are preliminarily installed on both sides of the connecting piece 2, the two threaded rods 11 are sequentially penetrated into the inside of the two groups of vertical blocks 10, and then the two sides of the threaded rod 11 are threadedly processed by the nut 12.

[0037] The working principle of the above example is:

[0038] (1) the track type container gantry crane overload protection device, when the first protective shell 5 and the second protective shell 6 are installed, the connecting sheet is manually twisted, the two rotating rods 16 are rotated, then the two guide plates 13 are driven by the rope 15 to move synchronously, the compression spring 14 is compressed, the plug-in rod 8 is moved and stored in the inside of the mounting block 7, then the first protective shell 5 and the second protective shell 6 are clamped on the two sides of the connecting piece 2, the shaft pin load sensor 3 is covered in the first protective shell 5 and the second protective shell 6, then the two rotating rods 16 are rotated in the opposite direction, the compression spring 14 is reset, the first protective shell 5 and the second protective shell 6 are preliminarily fixed on the two sides of the connecting piece 2 through the plug-in rod 8 and the connecting piece 2, so as to protect the shaft pin load sensor 3, reduce the collision, interference and other conditions of the shaft pin load sensor 3, and improve the service life and quality of the shaft pin load sensor 3.

[0039] (2) the track type container gantry crane overload protection device, after the first protective shell 5 and the second protective shell 6 are preliminarily installed on the two sides of the connecting piece 2, the two threaded rods 11 are sequentially penetrated into the two groups of vertical blocks 10, then the two sides of the threaded rod 11 are threadedly treated through the nut 12.

[0040] It should be noted that, in the present text, relational terms such as first and second and the like can only be used to distinguish one entity or operation from another entity or operation, without necessarily requiring or implying any such actual relationship or order between these entities or operations. Moreover, the terms "comprises", "comprising", or any other variant thereof are intended to cover non-exclusive inclusions, so that a process, method, article, or apparatus that includes a list of elements does not only include those elements, but also includes other elements not explicitly listed, or further includes elements inherent in such a process, method, article, or apparatus. Without more limitations, the element defined by the statement "comprises a" does not exclude the presence of additional identical elements in the process, method, article, or apparatus that includes the element.

[0041] Although the embodiments of the present application have been shown and described, it should be understood by those skilled in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. An overloading protection device for a rail-mounted container gantry crane, comprising a frame (1), characterized in that: The rack (1) is provided with a plug-in protection assembly, and the rack (1) is provided with a fixing assembly; The plug-in protection assembly comprises a connecting piece (2) arranged at the bottom of the rack (1), the inside of the connecting piece (2) is provided with a shaft pin load cell (3), the bottom of the connecting piece (2) is provided with a steel wire rope (4), and the two sides of the connecting piece (2) are respectively plugged into a first protective shell (5) and a second protective shell (6); The top of the first protective shell (5) and the second protective shell (6) is fixedly installed with a mounting block (7), the inside of the two mounting blocks (7) is provided with a moving assembly, and the opposite side of the two moving assemblies is fixedly installed with a plug-in rod (8).

2. A rail-mounted container gantry crane overload protection device according to claim 1, characterized in that: The fixing assembly comprises a vertical block (10) fixedly installed outside the first protective shell (5) and the second protective shell (6), and a threaded rod (11) penetrating through the inside of the two vertical blocks (10).

3. A rail-mounted container gantry crane overload protection device according to claim 1, characterized in that: The moving assembly comprises a guide plate (13) slidingly installed in the inside of the two mounting blocks (7), the opposite side of the two guide plates (13) is fixedly installed with an extrusion spring (14), the opposite side of the two guide plates (13) is fixedly installed with a rope (15), and the inner wall bottom of the two mounting blocks (7) is rotatably installed with a rotating rod (16).

4. A rail-mounted container gantry crane overload protection device according to claim 1, characterized in that: The opposite side of the two sealing strips (9) is fixedly installed with a clamping block, the opposite side of the first protective shell (5) and the second protective shell (6) is provided with a clamping groove, and the clamping block is clamped with the first protective shell (5) and the second protective shell (6) through the clamping groove.

5. A rail-mounted container gantry crane overload protection device according to claim 1, characterized in that: The opposite side of the two mounting blocks (7) is provided with an extension hole, the plug-in rod (8) penetrates through the extension hole to the outside of the mounting block (7), and the two sides of the connecting piece (2) are provided with plug-in holes, and the plug-in rod (8) is plugged into the connecting piece (2) through the plug-in hole.

6. A rail-mounted container gantry crane overload protection device according to claim 3, characterized in that: The inside of the two mounting blocks (7) is fixedly installed with a fixed block, one end of the extrusion spring (14) is fixedly connected with the fixed block, and the rope (15) is rotatably installed on the outside of the rotating rod (16).

7. A rail-mounted container gantry crane overload protection device according to claim 3, characterized in that: The inside of the two mounting blocks (7) is provided with a sliding groove, and the guide plate (13) is slidingly connected with the mounting block (7) through the sliding groove.

8. A rail-mounted container gantry crane overload protection device according to claim 3, characterized in that: The top of the two mounting blocks (7) is provided with a through hole, the rotating rod (16) extends to the outside of the mounting block (7) through the through hole, and the top of the rotating rod (16) is fixedly installed with a connecting disc.

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