Push-pull type unloading container and coal car

Abstract

The utility model relates to the technical field of containers, in particular to a push-pull type unloading container and a coal conveyor, the push-pull type unloading container comprises a rectangular bottom plate, side plates are arranged above the two sides of the long edge of the bottom plate, a back plate is arranged above one side of the wide edge of the bottom plate, and the bottom plate, the back plate and the side plates form a container body; a mounting hole is formed in the bottom plate and is used for mounting a fixing stud; the wear-resistant strip is arranged below the bottom plate; and the flange nuts are in threaded connection with the fixing studs, so that the wear-resistant strips are detachably connected with the bottom plate. The fixing studs sink down through the mounting holes of the bottom plate, and then plug welding is carried out, so that the fixing studs can be firmly fixed on the bottom plate; and the wear-resistant strips are mounted on the bottom plate through the flange nuts, so that friction between rigid parts is perfectly avoided, a good protection effect on the cargo tank bottom plate is achieved, and the cargo tank bottom plate can be effectively prevented from being abraded.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of cargo box, in particular to a push-pull type unloading cargo box and a coal transport vehicle. BACKGROUND

[0002] The coal transport vehicle is a vehicle specially used for transporting coal and is widely used in coal mines and other places where a large amount of coal needs to be transported. The push-pull type unloading cargo box is a core component of the coal transport vehicle. Compared with the unloading mode of the turnover cargo box, the push-pull type unloading cargo box saves space and is more suitable for low ramming roads in the underground. Because of the movement, the push-pull type unloading cargo box needs to be installed with wear-resistant materials to reduce the wear of the contact surface.

[0003] The existing push-pull type unloading cargo box adopts a layer of plastic wear-resistant plate on the bottom plate of the cargo box to realize the wear resistance and sliding assistance function. However, the plastic wear-resistant plate is used in the underground environment and has a too fast wear rate, which is not ideal in use. CONTENT OF THE INVENTION

[0004] The present application aims to at least solve one of the technical problems in the prior art or related art that the existing push-pull type unloading cargo box adopts a layer of plastic wear-resistant plate on the bottom plate of the cargo box to realize the wear resistance and sliding assistance function. The plastic wear-resistant plate is used in the underground environment and has a too fast wear rate, which is not ideal in use.

[0005] To this end, the present application provides a push-pull type unloading cargo box. The fixing stud is sunk through the mounting hole of the bottom plate and then is welded by plug welding, so that the fixing stud can be firmly fixed on the bottom plate. Then, the wear-resistant strip is installed on the bottom plate through the flange nut, which perfectly avoids the friction between rigid parts and has a good protective effect on the bottom plate of the cargo box, so that the wear of the bottom plate of the cargo box can be effectively avoided.

[0006] The present application also provides a coal transport vehicle comprising the push-pull type unloading cargo box.

[0007] According to the push-pull type unloading cargo box of the first aspect of the present application, the bottom plate is rectangular, side plates are arranged above both sides of the long side of the bottom plate, a back plate is arranged above one side of the wide side of the bottom plate, and the bottom plate, the back plate and the side plates form a box body. The bottom plate is provided with a mounting hole for mounting a fixing stud. The wear-resistant strip is arranged below the bottom plate. The flange nut and the fixing stud are threadedly connected to detachably connect the wear-resistant strip and the bottom plate.

[0008] Optionally, the straight line where the wear-resistant strip is located is parallel to the straight line where the wide side of the bottom plate is located, and the straight lines where the plurality of wear-resistant strips are located are parallel to each other.

[0009] Optionally, the wear-resistant strip is provided with a mounting groove, a through hole is arranged in the mounting groove, the fixing stud passes through the through hole, and the flange nut is arranged in the mounting groove.

[0010] Optionally, the flange nut comprises: a locking nut and a peripheral flange, the peripheral flange is circular, and the locking nut is arranged at the center of the peripheral flange; the locking nut is used for being threadedly connected with the fixing stud; and the peripheral flange is used for pressing the mounting groove.

[0011] Optionally, the peripheral flange is provided with an assembly hole.

[0012] Optionally, the fixing stud comprises: a welding portion and a threaded column, the welding portion is fixedly connected with the threaded column; the welding portion is arranged in the mounting hole, and the threaded column passes through the through hole of the mounting groove.

[0013] Optionally, the welding portion and the mounting hole are in transition fit.

[0014] Optionally, the wear-resistant strip has a thickness of 13mm-20mm.

[0015] Optionally, the wear-resistant strip is made of an ultrahigh molecular weight polyethylene material.

[0016] According to the second aspect of the present application, a coal truck comprises the push-pull type unloading container of the first aspect or any implementation manner thereof.

[0017] The above technical solution has at least the following advantages or beneficial effects:

[0018] The push-pull type unloading container comprises: a bottom plate, the bottom plate is rectangular, side plates are arranged above both sides of the long side of the bottom plate, a back plate is arranged above one side of the wide side of the bottom plate, and the bottom plate, the back plate and the side plates form a box body; the bottom plate is provided with a mounting hole, the mounting hole is used for mounting a fixing stud; a wear-resistant strip is arranged below the bottom plate; and a flange nut is threadedly connected with the fixing stud, so that the wear-resistant strip is detachably connected with the bottom plate. The fixing stud is sunk through the mounting hole of the bottom plate and then is welded by plug welding, so that the fixing stud is firmly fixed on the bottom plate; and then the wear-resistant strip is mounted on the bottom plate through the flange nut, so that the friction between rigid parts is perfectly avoided, the bottom plate of the container is well protected, and the bottom plate of the container is effectively prevented from being worn out.

[0019] The coal truck provided in the present application is provided with the push-pull type unloading container, and the coal truck provided with the push-pull type unloading container also has the corresponding technical effects due to the technical effects of the push-pull type unloading container. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, other drawings can also be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0021] Figure 1Fig. 1 shows a structural schematic diagram of a push-pull type unloading container provided by the present application;

[0022] Figure 2 Fig. 2 shows another structural schematic diagram of a push-pull type unloading container provided by the present application;

[0023] Figure 3 Fig. 3 shows a third structural schematic diagram of a push-pull type unloading container provided by the present application;

[0024] Figure 4 Fig. 4 shows a structural schematic diagram of a fixing stud in a push-pull type unloading container provided by the present application;

[0025] Figure 5 Fig. 5 shows a structural schematic diagram of a flange nut in a push-pull type unloading container provided by the present application.

[0026] Legend of reference signs:

[0027] 1, bottom plate, 11, mounting hole, 2, back plate, 3, side plate, 4, wear-resistant strip, 41, mounting groove, 5, fixing stud, 51, welding part, 52, threaded stud, 6, flange nut, 61, locking nut, 62, peripheral flange, 63, assembly hole. DETAILED DESCRIPTION

[0028] In order to better explain the present application and facilitate understanding, the present application is described in detail below through specific embodiments in combination with the drawings. The orientation terms such as "upper", "lower", "inner" and "outer" mentioned in this text are taken as reference with the orientation of Figure 2 and Figure 3 of the bottom plate 1 relative to the wear-resistant strip 4 being defined as "upper"; the orientation of the fixing stud 5 relative to the mounting hole 11 being defined as "inner".

[0029] As described above, the downhole low-ram way is usually narrow in space, and the traditional turnover container needs a larger space to complete the turnover action when unloading, which is limited by the downhole environment; while the push-pull type unloading container pushes the goods out of the container through the push-pull mechanism without the need for turnover, thereby greatly saving space.

[0030] However, the existing push-pull type unloading container adopts a layer of plastic wear-resistant plate on the bottom plate of the container to realize wear resistance and sliding assistance, but the downhole environment is usually high in humidity and temperature, and there are a large amount of coal dust and rock particles, and these environmental factors will accelerate the wear of the plastic wear-resistant plate and reduce its service life, and the wear speed is too fast, and the use effect is not ideal.

[0031] In order to at least solve one of the problems existing in the prior art or related art, the application provides a push-pull type unloading container and coal transport vehicle, which comprises a bottom plate, the bottom plate is rectangular, side plates are arranged above both sides of the long side of the bottom plate, a back plate is arranged above one side of the wide side of the bottom plate, and the bottom plate, the back plate and the side plates form a box body; the bottom plate is provided with mounting holes for mounting fixing studs; a wear-resistant strip is arranged below the bottom plate; a flange nut and the fixing stud are threadedly connected to detachably connect the wear-resistant strip and the bottom plate. The fixing stud is sunk through the mounting hole of the bottom plate and then is welded by plug welding, so that the fixing stud is firmly fixed on the bottom plate; then the wear-resistant strip is mounted on the bottom plate through the flange nut, thereby perfectly avoiding the friction between rigid parts and achieving a good protection effect on the container bottom plate, and the wear-resistant strip can effectively prevent the container bottom plate from being worn out.

[0032] The push-pull type unloading container and coal transport vehicle according to some embodiments provided by the application are described below with reference to the accompanying drawings.

[0033] Referring to Figures 1 to 5 , the application provides a push-pull type unloading container, which comprises a bottom plate 1, the bottom plate 1 is rectangular, side plates 3 are arranged above both sides of the long side of the bottom plate 1, a back plate 2 is arranged above one side of the wide side of the bottom plate 1, and the bottom plate 1, the back plate 2 and the side plates 3 form a box body; the bottom plate 1 is provided with mounting holes 11 for mounting fixing studs 5; a wear-resistant strip 4 is arranged below the bottom plate 1; a flange nut 6 and the fixing stud 5 are threadedly connected to detachably connect the wear-resistant strip 4 and the bottom plate 1.

[0034] The bottom plate 1 is designed to be rectangular, thereby providing a stable support surface; the bottom plate 1, the back plate 2 and the side plates 3 form a box body for loading goods, and the bottom plate 1 is in contact with the push-pull mechanism, thereby being prone to wear.

[0035] As shown in Figure 2 , a plurality of mounting holes 11 are arranged on the bottom plate 1, the fixing studs 5 are mounted into the mounting holes 11 and then are welded by plug welding, so that the fixing studs 5 are firmly fixed on the bottom plate 1; then the wear-resistant strip 4 is clamped on the bottom plate 1 through the thread connection between the flange nut 6 and the fixing stud 5, and this connection mode has high strength and reliability and can withstand large loads and vibrations; at the same time, since the thread connection is adopted, the wear-resistant strip 4 can be conveniently replaced or maintained by loosening the flange nut 6, and compared with the wear-resistant plate which needs to be replaced in its entirety after wear in a certain area, the wear-resistant strip 4 can only replace the worn area. When the wear-resistant plate is replaced in its entirety, the un-worn part is also discarded, thereby causing material waste; and the use of the wear-resistant strip 4 can avoid this situation and only replace the worn part.

[0036] In an illustrative embodiment, the straight line where the wear-resistant strip 4 is located is parallel to the straight line where the wide edge of the base plate 1 is located, and the straight lines where the plurality of wear-resistant strips 4 are located are arranged in parallel. This design ensures that the wear-resistant strips 4 are arranged in the same direction on the base plate 1, facilitating installation and alignment; at the same time, the plurality of wear-resistant strips 4 form a regular grid structure that can cover the entire area of the base plate 1, as shown in Figure 1 , which can uniformly distribute wear and improve the overall wear resistance; and the number and spacing of the wear-resistant strips 4 can be adjusted according to actual needs to adapt to different wear conditions and protection needs, for example: when a certain area wears faster, the spacing can be reduced and the number of wear-resistant strips 4 can be increased, thereby increasing the coverage density of wear-resistant materials and more effectively resisting wear; and when a certain area wears slower, the spacing can be increased and the number of wear-resistant strips 4 can be reduced, thereby reducing the amount of wear-resistant materials used and reducing costs.

[0037] In an illustrative embodiment, as shown in Figure 3 and Figure 4 , the wear-resistant strip 4 is provided with a mounting groove 41, the mounting groove 41 is provided with a through hole, the fixing stud 5 passes through the through hole, and the flange nut 6 is arranged in the mounting groove 41.

[0038] The mounting groove 41 is used to accommodate the flange nut 6, and the depth of the mounting groove 41 is greater than the thickness of the flange nut 6. When installing the wear-resistant strip 4, the opening of the mounting groove 41 is downward, the fixing stud 5 is passed through the through hole at the bottom of the mounting groove 41, the flange nut 6 is placed into the opening of the mounting groove 41, and the flange nut 6 is tightened on the fixing stud 5 using appropriate tools until the flange nut 6 clamps the mounting groove 41, ensuring that the wear-resistant strip 4 is tightly attached to the base plate 1, and the fixing of the wear-resistant strip 4 is completed.

[0039] In an illustrative embodiment, as shown in Figure 5 , the flange nut 6 includes a locking nut 61 and a peripheral flange 62, the peripheral flange 62 is circular, and the locking nut 61 is arranged at the center of the peripheral flange 62; the locking nut 61 is used for threaded connection with the fixing stud 5; and the peripheral flange 62 is used for pressing the mounting groove 41.

[0040] The locking nut 61 is designed with an internal thread for threaded connection with the external thread of the fixing stud 5; the peripheral flange 62 extends around the outside of the locking nut 61 and is circular, and the diameter of the peripheral flange 62 is large, for example, the diameter of the peripheral flange 62 can be designed to be 60-80 mm, so as to cover the mounting groove 41 of the wear-resistant strip 4 during installation. The locking nut 61 and the peripheral flange 62 can be integrally formed, and the circular design of the peripheral flange 62 facilitates processing and manufacturing; at the same time, the symmetry of the circular flange makes it easier to achieve accurate positioning during installation, especially in cooperation with the mounting groove 41 of the wear-resistant strip 4, and the circular flange can provide stable support and positioning.

[0041] In an exemplary embodiment, the peripheral flange 62 is provided with assembly holes 63. The assembly holes 63 are through holes symmetrically distributed on the peripheral flange 62. For example, the assembly holes 63 can be four through holes distributed in a cross shape, or the assembly holes 63 can be three through holes distributed in an equilateral triangle shape. For the flange nut 6 with a specific distribution and number of assembly holes 63, a self-made tool needs to be used for installation. The flange nut 6 uses a specially designed assembly hole 63 to use a self-made tool for installation, rather than designing the peripheral flange 62 into a hexagonal shape, because the diameter-to-thickness ratio of the peripheral flange 62 is too large. For example, the diameter of the peripheral flange 62 is 60-80 mm, and the thickness of the peripheral flange 62 is 8-12 mm, that is, the peripheral flange 62 is equivalent to a sheet. When a hexagonal design is used, it is easy to produce deflection when rotating with a hexagonal wrench and cannot be installed.

[0042] In an exemplary embodiment, the fixing stud includes a welding portion 51 and a threaded column 52, and the welding portion 51 is fixedly connected with the threaded column 52. The welding portion 51 is arranged in the mounting hole 11, and the threaded column 52 passes through the through hole of the mounting groove 41.

[0043] The welding portion 51 and the threaded column 52 can be integrally formed. The diameter of the welding portion 51 is smaller than the diameter of the threaded column 52. When the welding portion 51 is placed in the mounting hole 11, the threaded column 52 is clamped at the opening of the mounting hole 11, so that the depth of the welding portion 51 placed in the mounting hole 11 is consistent. At the same time, the welding portion 51 does not exceed the upper surface of the bottom plate 1 in the mounting hole 11, so that the upper surface of the bottom plate 1 is not protruding and affects the loading of goods.

[0044] In an exemplary embodiment, the welding portion 51 and the mounting hole 11 are transitionally fitted. Transitional fitting refers to the tolerance of the hole and the shaft being close. Even if there is a gap or interference fit, the fit is relatively small. The welding portion 51 and the mounting hole 11 are transitionally fitted, so that the size and shape of the two have been precisely designed, which can ensure that good centring and coaxiality can be formed during welding. This fitting method helps to reduce welding deformation and stress concentration, and improves the quality and stability of the welding joint.

[0045] In an exemplary embodiment, the thickness of the wear-resistant strip 4 is 13-20 mm. The thickness of the wear-resistant strip 4 needs to consider the limitation of the installation space. The thickness of 13-20 mm makes the wear-resistant strip 4 flexible to adapt to the installation space. At the same time, the thickness of the flange nut 6 corresponds to the thickness of the wear-resistant strip 4. For example, when the thickness of the wear-resistant strip 4 is 13 mm, the thickness of the flange nut 6 is selected to be 8 mm; when the thickness of the wear-resistant strip 4 is 16 mm, the thickness of the flange nut 6 is selected to be 10 mm; and when the thickness of the wear-resistant strip 4 is 20 mm, the thickness of the flange nut 6 is selected to be 12 mm.

[0046] In an illustrative embodiment, the wear-resistant strip 4 is made of an ultra-high molecular weight polyethylene material. Ultra-high molecular weight polyethylene (UHMWPE) is a linear polyethylene with an extremely high molecular weight, with a molecular weight of up to 2 million or more, a low abrasion index, and thus an extremely high wear resistance, which is 6.6 times higher than that of general alloy steel, 5.5 times higher than that of stainless steel, 6 times higher than that of nylon, and 5 times higher than that of polytetrafluoroethylene. At the same time, because the ultra-high molecular weight polyethylene material contains wax-like substances and has good self-lubricating properties, the friction coefficient is low, so that the wear-resistant strip 4 can reduce the frictional resistance during sliding and improve the freedom of movement, thereby effectively protecting the bottom plate 1 from wear.

[0047] Based on the push-pull type unloading container provided in the above embodiments, some embodiments of the present application further provide a coal transport vehicle including the push-pull type unloading container provided in the above embodiments. Because the coal transport vehicle provided in the present embodiment has the push-pull type unloading container provided in any of the above embodiments, the coal transport vehicle has all the beneficial effects of the push-pull type unloading container provided in any of the above embodiments, which will not be described here.

[0048] In the description of the present application, it should be understood that the terms "first", "second" are used only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "a plurality of" is two or more, unless otherwise specifically limited.

[0049] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood in a broad sense, for example, can be fixedly connected, or can be detachably connected, or can be integrated; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium; can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0050] In the present application, unless specifically defined and limited otherwise, the first feature is "on" or "under" the second feature, which can be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature is "over", "above" and "on top of" the second feature, which can be that the first feature is directly above or obliquely above the second feature, or only indicates that the first feature is higher than the second feature in horizontal height. The first feature is "under", "below" and "underneath" the second feature, which can be that the first feature is directly below or obliquely below the second feature, or only indicates that the first feature is lower than the second feature in horizontal height.

[0051] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "embodiment", "exemplary embodiment", "example", "specific example" or "some examples" etc. means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are contained in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the present application and the features of the different embodiments or examples without contradiction.

[0052] Although the embodiments of the present application have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limiting the present application, and the ordinary skilled person in the art can make changes, modifications, replacements and variations to the above embodiments within the scope of the present application.

Claims

1. A push-pull unloading container, characterized in that, It includes: The bottom plate (1) is rectangular, the side plate (3) is arranged on the upper side of the long side of the bottom plate (1), and the back plate (2) is arranged on the upper side of one side of the wide side of the bottom plate (1). The bottom plate (1), the back plate (2) and the side plate (3) form a box body; The bottom plate (1) is provided with a mounting hole (11) for mounting a fixing stud (5); wherein, after the fixing stud (5) is mounted in the mounting hole (11), the fixing stud (5) and the mounting hole (11) are plug welded to fix the fixing stud (5) on the bottom plate (1); The wear-resistant strip (4) is arranged below the bottom plate (1); After the fixing stud (5) is fixed on the bottom plate (1), the flange nut (6) and the fixing stud (5) are threadedly connected to detachably connect the wear-resistant strip (4) and the bottom plate (1).

2. A push-pull unloading bin as claimed in claim 1, wherein, The straight line where the wear-resistant strip (4) is located is parallel to the straight line where the wide side of the bottom plate (1) is located, and the straight lines where a plurality of wear-resistant strips (4) are located are arranged in parallel.

3. A push-pull unloading bin as claimed in claim 1, wherein, The wear-resistant strip (4) is provided with a mounting groove (41), a through hole is arranged in the mounting groove (41), the fixing stud (5) passes through the through hole, and the flange nut (6) is arranged in the mounting groove (41).

4. A push-pull unloading bin as claimed in claim 3, wherein, The flange nut (6) includes a locking nut (61) and a peripheral flange (62), the peripheral flange (62) is circular, and the locking nut (61) is arranged at the center of the peripheral flange (62); The locking nut (61) is used for threadedly connecting with the fixing stud (5); and the peripheral flange (62) is used for pressing the mounting groove (41).

5. A push-pull unloading bin as claimed in claim 4, wherein, The peripheral flange (62) is provided with an assembly hole (63).

6. A push-pull unloading bin as claimed in claim 3, wherein, The fixing stud includes a welding portion (51) and a threaded column (52), and the welding portion (51) is fixedly connected with the threaded column (52); The welding portion (51) is arranged in the mounting hole (11), and the threaded column (52) passes through the through hole of the mounting groove (41).

7. A push-pull unloading bin as claimed in claim 6, wherein, The welding portion (51) and the mounting hole (11) are transitionally matched.

8. A push-pull unloading bin as claimed in claim 1, wherein, The thickness of the wear-resistant strip (4) is 13mm-20mm.

9. A push-pull unloading bin as claimed in claim 1, wherein, The material of the wear-resistant strip (4) is ultra-high molecular weight polyethylene material.

10. A coal car characterized by, It includes: The push-pull type discharge container according to any one of claims 1-9.

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