Mine truck tail compartment door anti-falling device

By welding double lifting lugs onto the tailgate of the mining truck and using a combination of U-shaped rings and steel wire ropes, the safety hazards and equipment damage caused by the tailgate falling off were solved, thus achieving stable operation and economic benefits for the equipment.

CN223850495UActive Publication Date: 2026-01-30INNER MONGOLIA DATANG INT XILINHAOTE MINING CO LTD
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Patent Information

Application Number
CN202520572302.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-28
Publication Date
2026-01-30
Estimated Expiration
2035-03-28

AI Technical Summary

Technical Problem

The tailgate of a wide-body dump truck used in mining is prone to detachment during unloading due to metal fatigue or poor welding quality, causing safety hazards and equipment damage, and affecting the efficiency of the coal conveying system.

Method used

Double lifting lugs with pre-drilled holes are welded to the side facade of the tailgate and the side compartment respectively. The tailgate is then fixed with a combination of U-shaped rings and steel wire ropes, using pins and connecting caps to prevent it from falling off.

Benefits of technology

It effectively prevents the tailgate from falling off, avoids downtime and economic losses in the crushing station system, and improves equipment stability and safety.

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Abstract

The utility model discloses a mine truck tail compartment door anti-falling device, which relates to the technical field of mine truck tail compartment door anti-falling, and comprises a compartment bucket side compartment, a compartment bucket tail door is arranged on the compartment bucket side compartment, two groups of lifting lug plates are arranged on the two sides of the compartment bucket side compartment and the two sides of the compartment bucket tail door, pin shafts are arranged on the four groups of lifting lug plates in a sliding manner, and the pin shafts are connected with the lifting lug plates. U-shaped rings are arranged on the outer walls of the four sets of pin shafts in a sliding mode, the outer walls of the four sets of pin shafts are movably sleeved with connecting caps, fixing pins are arranged between the four sets of pin shafts and the connecting caps, two sets of steel wire ropes are arranged on the four sets of pin shafts, and the two sets of lifting lug plates on the left side are fixedly connected with the compartment hopper tail door in a welded mode. According to the mining wide-body truck compartment hopper tail door, the phenomena that a crushing station system stops due to the fact that the mining wide-body truck compartment hopper tail door falls off, economic losses are caused by the fact that the compartment hopper tail door is lost, and the risk that the other side deforms and falls off due to the fact that one side falls off can be effectively avoided.
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Description

TECHNICAL FIELD

[0001] The utility model relates to a mine card tail compartment door anti -drop technical field, concretely relates to a mine card tail compartment door anti -drop device. BACKGROUND

[0002] In the process of unloading rock material, the tail compartment door seven character hook of the mine wide body dump truck breaks due to metal fatigue, or falls off due to poor welding quality, the driver is not easy to detect in the blind area in the process of unloading, the whole tail compartment door falls off to the dump site and is not found, is buried by subsequent mine card unloading, causes economic loss, even if found in time, the tail compartment door with a hoisting weight of 300kg exists safety hazard on the soft foundation of the dump site.

[0003] The most important situation is that the tail compartment door of the coal mine wide body truck falls off to the crushing station when the compartment is lifted to unload coal, and is extremely easy to cause the damage of the crushing roller tooth tip and bearing along with the operation of the scraper conveyor to the crushing roller, causes system overload shutdown, the fault processing difficulty is big, time is long, and the coal conveying system efficiency is seriously affected.

[0004] Therefore, a mine card tail compartment door anti -drop device is provided. UTILITY MODEL CONTENTS

[0005] The utility model discloses a mine card tail compartment door anti -drop device, and the tail compartment side vertical plane and side compartment are respectively welded with the double lifting lug plate of the reserved aperture, the steel wire rope is installed through the U type ring, and the tail compartment door is prevented from falling off.

[0006] The utility model discloses a mine card tail compartment door anti -drop device, and the tail compartment side vertical plane and side compartment are respectively welded with the double lifting lug plate of the reserved aperture, the steel wire rope is installed through the U type ring, and the tail compartment door is prevented from falling off.

[0007] A mine card tail compartment door anti -drop device, including the compartment side, be provided with the compartment tail door on the compartment side, the both sides of the compartment side and the compartment tail door all are provided with a group of lifting lug plate, and a group is two, four groups The outer wall of the pin shaft that is slid on the four groups of lifting lug plate all is slid and is provided with the U type ring, the outer wall of the four groups of pin shaft all is movably provided with the connecting cap, and the fixed pin is arranged between the four groups of pin shaft and connecting cap, two groups of steel wire ropes are provided on the four groups of pin shafts.

[0008] Further, the surface of the four groups of lifting lug plates is all penetrated with round holes, and the pin shaft is slidably installed on the inner wall of the round hole.

[0009] Further, the connection mode between the two groups of said lifting lug plates on the left and the tail door of the compartment is set as welding fixation, and the welding positions are arranged in up and down, with a spacing of 10mm.

[0010] Further, the connection mode between the two groups of said lifting lug plates on the right and the side compartment of the compartment is set as welding fixation, and the welding positions are arranged in up and down, with a spacing of 10mm.

[0011] Further, the diameters of the two said steel wires are set as 12mm.

[0012] The beneficial effects of the utility model are as follows:

[0013] The utility model discloses, through the setting of lifting lug plate, U type ring and steel wire, through first putting the steel wire on the outer wall of U type ring, then placing U type ring on lifting lug plate, then passing through the pin shaft from lifting lug plate and U type ring, then putting the connecting cap on one end of pin shaft, connecting and fixing pin shaft and connecting cap through fixed pin, at this moment, the tail end of connecting cap and pin shaft cooperates, can limit U type ring on lifting lug plate, this operation installs, and in practical application, under the cooperation of lifting lug plate, pin shaft, U type ring, connecting cap, fixed pin and steel wire, can effectively prevent the broken station system shutdown caused by the falling of the tail door of the mine wide-body truck compartment and the economic loss of the loss of the tail door of the compartment, and the risk of unilateral falling causing the deformation and falling of the other side. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1 It is the three-dimensional structure schematic diagram of the utility model;

[0015] Figure 2 It is the structure schematic diagram of the U type ring of the utility model.

[0016] The figure mark: 1, the side compartment of the compartment;2, the tail door of the compartment;3, lifting lug plate;4, pin shaft;5, U type ring;6, connecting cap;7, fixed pin;8, steel wire. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantage of the utility model embodiment more clear, the technical scheme in the utility model embodiment will be described clearly and completely in the following with the drawings in the utility model embodiment, obviously, the described embodiment is a part of the embodiment of the utility model, rather than all the embodiment. The components of the utility model embodiment described and shown in the drawing here can be arranged and designed in various different configurations.

[0018] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0019] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0020] In the description of the embodiments of this utility model, it should be noted that the terms "inner", "outer", "upper", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0021] like Figures 1-2 As shown, a mine truck tailgate anti-fall-off device includes a side compartment 1, a tailgate 2 on the side compartment 1, and a set of lifting lugs 3 on both sides of the side compartment 1 and the tailgate 2, with two pieces per set. Pins 4 are slidably mounted on each of the four sets of lifting lugs 3. U-shaped rings 5 ​​are slidably mounted on the outer walls of each of the four sets of pins 4. Connecting caps 6 are movably fitted onto the outer walls of each of the four sets of pins 4. Fixing pins 7 are provided between each of the four sets of pins 4 and the connecting caps 6. Two sets of steel wire ropes 8 are mounted on each of the four sets of pins 4. In this embodiment, the steel wire ropes 8 are first fitted onto the outer walls of the U-shaped rings 5, and then the U-shaped rings 5 ​​are placed on the lifting lugs. On plate 3, the pin 4 passes through the lifting lug plate 3 and U-shaped ring 5, and then the connecting cap 6 is fitted onto one end of the pin 4. The pin 4 and the connecting cap 6 are connected and fixed by the fixing pin 7. At this time, the connecting cap 6 and the tail end of the pin 4 cooperate to limit the U-shaped ring 5 on the lifting lug plate 3. This operation is used for installation. In actual application, the cooperation of the lifting lug plate 3, pin 4, U-shaped ring 5, connecting cap 6, fixing pin 7 and wire rope 8 can effectively prevent the crushing station system from shutting down due to the fall of the tail door 2 of the mining wide-body truck, as well as the economic loss of the lost tail door 2, and the risk of deformation and fall of the other side due to the fall of one side.

[0022] like Figures 1-2As shown, each of the four sets of lifting lugs 3 has a through hole, and the pin 4 is slidably mounted on the inner wall of the hole. In this embodiment, the hole facilitates the insertion of the pin 4 to install the U-shaped ring 5, and the hole also allows the pin 4 to slide and rotate, enhancing its flexibility.

[0023] like Figure 1 As shown, the connection between the two sets of lifting lugs 3 on the left and the tail door 2 of the cargo compartment is set by welding, and the welding positions are arranged vertically with a spacing of 10mm. In this embodiment, the stability is improved by welding the left lifting lugs 3 to the tail door 2 of the cargo compartment, and the position distribution improves the load-bearing capacity.

[0024] like Figure 1 As shown, the connection between the two sets of lifting lugs 3 on the right and the side compartment 1 of the compartment is set by welding, and the welding positions are arranged vertically with a spacing of 10mm. In this embodiment, the stability is improved by welding the lifting lugs 3 on the right and the side compartment 1 of the compartment, and the position distribution improves the load-bearing capacity.

[0025] like Figures 1-2 As shown, the diameter of both steel wire ropes 8 is set to 12mm. In this embodiment, the 12mm steel wire rope can withstand greater tensile force and is suitable for occasions requiring high strength.

[0026] In summary, by first looping the wire rope 8 onto the outer wall of the U-shaped ring 5, then placing the U-shaped ring 5 on the lifting lug plate 3, and then passing the pin 4 through the lifting lug plate 3 and the U-shaped ring 5, and then fitting the connecting cap 6 onto one end of the pin 4, and finally connecting and fixing the pin 4 and the connecting cap 6 with the fixing pin 7, the U-shaped ring 5 can be limited on the lifting lug plate 3 by the engagement of the connecting cap 6 and the tail end of the pin 4. This operation is used for installation. In actual application, the cooperation of the lifting lug plate 3, pin 4, U-shaped ring 5, connecting cap 6, fixing pin 7 and wire rope 8 can effectively prevent the crushing station system from falling off the tail door 2 of the mining wide-body truck. The system avoids the economic losses caused by shutdown and loss of the tailgate 2, and the risk of deformation and detachment of the other side due to detachment on one side. Due to the setting of the round hole, it is easy to insert the pin 4 to install the U-shaped ring 5. The setting of the round hole also allows the pin 4 to slide and rotate, enhancing its flexibility. It is fixed by welding between the left lifting lug plate 3 and the tailgate 2, improving its stability. Its position distribution also improves the load-bearing capacity. It is fixed by welding between the right lifting lug plate 3 and the side compartment 1 of the compartment, improving its stability. Its position distribution also improves the load-bearing capacity. The 12mm steel wire rope can withstand greater tension and is suitable for occasions requiring high strength.

[0027] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A mine truck tailgate anti-falling device, comprising a side compartment (1), wherein a tail gate (2) is arranged on the side compartment (1), characterized in that, The side compartment (1) and the tail door (2) are provided with a group of lifting lug plates (3) on both sides, and each group has two, four groups of lifting lug plates (3) are provided with pin shafts (4) slidingly arranged thereon, four groups of pin shafts (4) are provided with U-shaped rings (5) slidingly arranged on the outer walls thereof, four groups of pin shafts (4) are movably provided with connecting caps (6) on the outer walls thereof, four groups of pin shafts (4) and connecting caps (6) are provided with fixing pins (7) therebetween, and four groups of pin shafts (4) are provided with two groups of steel wires (8).

2. A mine truck tailgate anti-drop device according to claim 1, characterised in that, Four groups of lifting lug plates (3) are provided with round holes penetrating the surfaces thereof, and the pin shafts (4) are slidingly installed on the inner walls of the round holes.

3. The mine truck tailgate anti-drop device of claim 1, wherein, The connection mode between the left two groups of lifting lug plates (3) and the tail door (2) is welded and fixed, and the welding positions are arranged in an upper and lower manner with a spacing of 10mm.

4. The mine truck tailgate anti-drop device of claim 1, wherein, The connection mode between the right two groups of lifting lug plates (3) and the side compartment (1) is welded and fixed, and the welding positions are arranged in an upper and lower manner with a spacing of 10mm.

5. The mine truck tailgate anti-drop device of claim 1, wherein, The diameters of the two steel wires (8) are both 12mm.