Hinged frame and auxiliary transport vehicle for underground coal mine

Abstract

The utility model provides a kind of hinged frame and coal mine auxiliary transport vehicle, it is related to special vehicle technical field, hinged frame includes front frame, rear frame, hinged mechanism and lifting mechanism, the rear end of front frame is connected with the front end of rear frame by hinged mechanism;Rear frame includes two first longitudinal beams arranged at intervals, lifting mechanism is set between two first longitudinal beams, and the position of lifting mechanism in the length direction of first longitudinal beam is adjustable;Lifting mechanism includes first crossbeam, support plate, guard plate and lifting cylinder, two first crossbeams are arranged at intervals, and are connected between two first longitudinal beams respectively, two support plates are connected between two first crossbeams at intervals, two guard plates are connected between two first crossbeams at intervals and can be detached, two guard plates are all located between two support plates, and lifting cylinder is hinged between each guard plate and adjacent support plate respectively.The hinged frame of the utility model, compared with prior art, can improve the lifting efficiency of container.

Description

Technical Field

[0001] This utility model relates to the field of special vehicle technology, specifically to an articulated frame and an underground auxiliary transport vehicle for coal mines. Background Technology

[0002] The harsh underground environment of coal mines, with its narrow tunnels, places high demands on vehicle maneuverability. To meet the requirements of coal mine operations, most existing auxiliary transport vehicles use articulated frames. However, most articulated dump trucks in coal mines are currently powered by explosion-proof diesel engines. Due to the large size of these engines, to meet the height and width requirements of underground tunnels, the frame is often made into an irregularly shaped structure of welded plates. This not only results in a large amount of welding and heavy weight, but also a narrow cab, severely impacting the driver's operating space and comfort. Furthermore, the cargo box lifting devices of existing underground auxiliary transport vehicles are mostly welded to the sides or middle of the frame. The hydraulic cylinders are large and their positions are relatively fixed. This means that to lift the same angle, the cylinders need a longer stroke, and the poor starting angle also results in a significant waste of lifting energy. Utility Model Content

[0003] This utility model aims to solve at least one of the above-mentioned technical problems.

[0004] This utility model provides an articulated vehicle frame, including: a front frame, a rear frame, an articulation mechanism, and a lifting mechanism. The rear end of the front frame and the front end of the rear frame are connected through the articulation mechanism. The rear frame includes two spaced-apart first longitudinal beams. The lifting mechanism is disposed between the two first longitudinal beams, and the position of the lifting mechanism along the length of the first longitudinal beams is adjustable. The lifting mechanism includes a first crossbeam, a support plate, a guard plate, and a lifting cylinder. The two first crossbeams are spaced-apart and respectively connected between the two first longitudinal beams. The two support plates are spaced-apart and detachably connected between the two first crossbeams. The two guard plates are both located between the two support plates. Each guard plate is hinged to an adjacent support plate with the lifting cylinder.

[0005] The articulated frame provided by this utility model has, but is not limited to, the following beneficial effects compared to the prior art: The articulated frame of this utility model comprises a front frame whose rear end is connected to the rear frame whose front end is connected to the rear frame via an articulation mechanism. The front frame is used to mount the cab and related equipment, while the rear frame is used to mount the cargo box, which can be tilted relative to the rear frame under the drive of the lifting mechanism. Specifically, the lifting mechanism can be installed between the two first longitudinal beams of the rear frame. The lifting mechanism can be bolted to the first longitudinal beams via a first crossbeam to fix the lifting mechanism relative to the rear frame. The lifting cylinder can be hinged between the support plate and the guard plate via a pin. Since the guard plate is detachably connected to the first crossbeam, it can be removed when needed to facilitate the replacement of other types of cylinders. After replacing the cylinders, the position of the lifting mechanism in the length direction of the first longitudinal beam can be adjusted to place the lifting cylinder in a suitable position and angle to improve lifting efficiency.

[0006] Optionally, a first connecting portion is provided at both ends of the first crossbeam, a second connecting portion is provided on the first longitudinal beam, and multiple second connecting portions are provided along the length direction of the first longitudinal beam, and the first connecting portion is used to connect with the second connecting portion.

[0007] Optionally, the guard plate includes a main plate portion and ear plate portions connected to both ends of the main plate portion. The ear plate portions are provided with a first positioning hole, and the first crossbeam is provided with a second positioning hole. The first positioning hole and the second positioning hole are used to connect by bolts to fix the guard plate relative to the first crossbeam.

[0008] Optionally, the second positioning holes are spaced apart along the length of the first crossbeam.

[0009] Optionally, the support plate has a first pin hole, the guard plate has a second pin hole, and the lifting cylinder is hinged between the first pin hole and the second pin hole via a pin shaft.

[0010] Optionally, the articulation mechanism includes a front hinge structure, a rear hinge structure, and a rotary shaft. The front hinge structure is connected to the rear end of the front frame, the rotary shaft is rotatably connected to the front end of the rear frame, and the rear hinge structure is connected to the end of the rotary shaft away from the rear frame. The front hinge structure and the rear hinge structure are rotatably connected.

[0011] Optionally, the front frame includes two spaced-apart second longitudinal beams, the ends of which near the rear frame are bent toward each other and connected to the front hinge structure.

[0012] Optionally, the front frame further includes a second crossbeam, which is connected between two second longitudinal beams. The two ends of the second crossbeam pass through the two second longitudinal beams respectively, and each end of the second crossbeam is provided with a connecting seat. Each connecting seat is provided with a steering cylinder between itself and the rear hinge structure.

[0013] Optionally, the front frame further includes a third crossbeam, with multiple third crossbeams spaced apart on the two second longitudinal beams, and each third crossbeam having a mounting interface.

[0014] In addition, this utility model also provides an underground auxiliary transport vehicle for coal mines, including a cab, a cargo box, and an articulated frame as described above. The cab is mounted on the front frame, the cargo box is mounted on the rear frame, and the cargo box is used to tilt relative to the rear frame under the drive of a lifting cylinder.

[0015] Since the technical improvements and effects achieved by the underground auxiliary transport vehicle are the same as those of the articulated frame, the technical effects of the underground auxiliary transport vehicle will not be described in detail. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the articulated frame structure according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of the lifting mechanism of this utility model installed on the rear frame; Figure 3 This is a structural schematic diagram of the lifting mechanism according to an embodiment of the present utility model.

[0017] Explanation of reference numerals in the attached figures: 1. Front frame; 11. Second longitudinal beam; 12. Second crossbeam; 13. Third crossbeam; 2. Rear frame; 21. First longitudinal beam; 3. Articulation mechanism; 31. Front hinge structure; 32. Rear hinge structure; 33. Rotary shaft; 4. Lifting mechanism; 41. First crossbeam; 42. Support plate; 43. Guard plate; 431. Main plate; 432. Ear plate; 44. Lifting cylinder; 5. Steering cylinder. Detailed Implementation

[0018] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0019] In the description of this utility model, the orientation or positional relationship indicated by terms such as "up", "down", "left", "right", "top", "bottom", "front", "back", "inner" and "outer" is based on the orientation or positional relationship shown in the accompanying drawings. It is only for the convenience of describing this utility model and is not intended to indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the scope of protection of this utility model.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] In the description of this specification, references to terms such as "embodiment," "one embodiment," and "one implementation" indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or implementation is included in at least one embodiment or implementation of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or implementation. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or implementations.

[0022] Furthermore, in the attached diagram, the X-axis represents the horizontal direction, that is, the left and right position, with the positive direction of the X-axis representing the left and the negative direction of the X-axis representing the right; the Y-axis represents the vertical direction, that is, the front and back position, with the positive direction of the Y-axis representing the front and the negative direction of the Y-axis representing the back; and the Z-axis represents the vertical direction, that is, the up and down position, with the positive direction of the Z-axis representing the up and the negative direction of the Z-axis representing the down.

[0023] It should also be noted that the aforementioned X-axis, Y-axis and Z-axis are used only for the convenience of describing the present invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention.

[0024] like Figures 1 to 3As shown, the articulated vehicle frame of this utility model embodiment includes: a front frame 1, a rear frame 2, an articulation mechanism 3, and a lifting mechanism 4. The rear end of the front frame 1 is connected to the front end of the rear frame 2 through the articulation mechanism 3. The rear frame 2 includes two spaced-apart first longitudinal beams 21. The lifting mechanism 4 is disposed between the two first longitudinal beams 21, and the position of the lifting mechanism 4 in the length direction of the first longitudinal beams 21 is adjustable. The lifting mechanism 4 includes a first crossbeam 41, a support plate 42, a guard plate 43, and a lifting cylinder 44. The two first crossbeams 41 are spaced-apart and respectively connected between the two first longitudinal beams 21. The two support plates 42 are spaced-apart between the two first crossbeams 41. The two guard plates 43 are spaced-apart and detachably connected between the two first crossbeams 41. Both guard plates 43 are located between the two support plates 42. Each guard plate 43 is hinged to the adjacent support plate 42 with the lifting cylinder 44.

[0025] In this embodiment, in conjunction with the appendix Figure 1 To be continued Figure 3 As shown, this utility model provides an articulated vehicle frame, wherein the rear end of the front frame 1 and the front end of the rear frame 2 are connected by an articulation mechanism 3. The front frame 1 can be used to install the cab and related equipment, and the rear frame 2 can be used to install the cargo box, which can be tilted relative to the rear frame 2 under the drive of the lifting mechanism 4. Specifically, the lifting mechanism 4 can be installed between the two first longitudinal beams 21 of the rear frame 2, wherein the lifting mechanism 4 can be bolted to the first longitudinal beams 21 via the first crossbeam 41 thereon to fix the lifting mechanism 4 relative to the rear frame 2. The lifting cylinder 44 can be hinged between the support plate 42 and the guard plate 43 via a pin. Moreover, since the guard plate 43 is detachably connected to the first crossbeam 41, it can be removed when needed, thereby facilitating the replacement of other types of cylinders. After replacing other cylinders, the length direction of the lifting mechanism 4 in the first longitudinal beam 21 can also be adjusted (see attached diagram). Figure 1 The position of the lifting cylinder 44 in the Y-axis direction is adjusted to ensure that the lifting cylinder 44 is in a suitable position and angle to improve lifting efficiency.

[0026] Optionally, the first crossbeam 41 is provided with a first connecting part at both ends, the first longitudinal beam 21 is provided with a second connecting part, and multiple second connecting parts are provided along the length direction of the first longitudinal beam 21, and the first connecting part is used to connect with the second connecting part.

[0027] In this embodiment, in conjunction with the appendix Figure 3 As shown, the first crossbeam 41 can be a steel plate with a U-shaped cross-section, and each end of the first crossbeam 41 is provided with a first connecting part for connecting with the first longitudinal beam 21, wherein the first connecting part can be a threaded hole. (See attached diagram) Figure 2As shown, the rear frame 2 can be a side beam type frame, consisting of left and right (attached) Figure 1 Or attached Figure 2 The rear frame 2 consists of longitudinal beams (two first longitudinal beams 21) and crossbeams (connected between the two first longitudinal beams 21) in the X-axis direction. The rear frame 2 can be equipped with a rear axle assembly, cargo box, and lifting mechanism 4, etc. The first longitudinal beams 21 of the rear frame 2 can be integrally bent from high-strength steel plates, with a U-shaped cross-section, and are located along the length of the first longitudinal beams 21 (see attached diagram). Figure 2 Multiple second connecting parts for connecting to the first crossbeam 41 can be provided at intervals along the Y-axis direction, wherein the second connecting parts can be threaded holes. In this way, the first connecting parts on the first crossbeam 41 and the second connecting parts on any one of the first longitudinal beams 21 can be fixed together by bolts, thereby fixing the lifting mechanism 4 to the corresponding position of the rear frame 2.

[0028] Optionally, the guard plate 43 includes a main plate portion 431 and ear plate portions 432 connected to both ends of the main plate portion 431. The ear plate portions 432 are provided with a first positioning hole, and the first crossbeam 41 is provided with a second positioning hole. The first positioning hole and the second positioning hole are used to connect by bolts to fix the guard plate 43 relative to the first crossbeam 41.

[0029] In this embodiment, in conjunction with the appendix Figure 3 As shown, the ear plate portion 432 can be connected to both ends of the main plate portion 431 by welding. The ear plate portion 432 is provided with a first positioning hole, and the first crossbeam 41 is provided with a second positioning hole. Both the first positioning hole and the second positioning hole can be threaded holes. The ear plate portion 432 is fixed relative to the first crossbeam 41 by screws that are respectively engaged with the first positioning hole of the ear plate portion 432 and the second positioning hole of the first crossbeam 41.

[0030] Optionally, a plurality of second positioning holes are spaced apart along the length of the first crossbeam 41.

[0031] In this embodiment, the second positioning hole can be a threaded hole, and multiple second positioning holes are spaced apart along the length of the first crossbeam 41. The first positioning hole of the ear plate portion 432 can be connected to any one of the second positioning holes to fix the guard plate 43 at the corresponding position of the first crossbeam 41.

[0032] Optionally, the support plate 42 has a first pin hole, the guard plate 43 has a second pin hole, and the lifting cylinder 44 is hinged between the first pin hole and the second pin hole by a pin shaft.

[0033] Optionally, the hinge mechanism 3 includes a front hinge structure 31, a rear hinge structure 32, and a rotary shaft 33. The front hinge structure 31 is connected to the rear end of the front frame 1, the rotary shaft 33 is rotatably connected to the front end of the rear frame 2, and the rear hinge structure 32 is connected to the end of the rotary shaft 33 away from the rear frame 2. The front hinge structure 31 and the rear hinge structure 32 are rotatably connected.

[0034] In this embodiment, in conjunction with the appendix Figure 1 As shown, the front hinge structure 31 can be welded to the rear end of the front frame 1, the slewing shaft 33 can be rotatably connected to the front end of the rear frame 2 via bearings, and the rear hinge structure 32 is connected to the end of the slewing shaft 33 away from the rear frame 2. The front hinge structure 31 and the rear hinge structure 32 can be rotatably connected via pins. The hinge mechanism 3 is used to realize the deflection of the front frame 1 and the rear frame 2 in the horizontal plane and the rotation around the central axis. The slewing shaft 33 allows the front frame 1 and the rear frame 2 to rotate around the central axis of the slewing shaft 33, thereby reducing the requirements for the frame's torsional resistance and enhancing its adaptability and passability to harsh road conditions.

[0035] Optionally, the front frame 1 includes two spaced-apart second longitudinal beams 11, with the ends of the two second longitudinal beams 11 near the rear frame 2 bent toward each other and connected to the front hinge structure 31.

[0036] In this embodiment, in conjunction with the appendix Figure 1 As shown, the front frame 1 includes two spaced-apart second longitudinal beams 11, and the rear ends of the two second longitudinal beams 11 (attached) Figure 1 The components (in the opposite direction of the Y-axis) bend towards each other and connect with the front hinge structure 31. This structural design can reduce the weight of the overall structure while ensuring the structural strength of the front frame 1.

[0037] In other embodiments, one of the second longitudinal beams 11 may be broken near its center, dividing into a front half and a rear half, wherein the front half may be offset towards the center to facilitate the installation of the cab. Other transverse and longitudinal beams may also be provided on the front frame 1 to enhance the structural strength of the front frame 1 and facilitate the installation of the cab.

[0038] Optionally, the front frame 1 further includes a second crossbeam 12, which is connected between two second longitudinal beams 11. The two ends of the second crossbeam 12 pass through the two second longitudinal beams 11 respectively, and the two ends of the second crossbeam 12 are respectively provided with connecting seats. Each connecting seat is provided with a steering cylinder 5 between itself and the rear hinge structure 32.

[0039] In this embodiment, in conjunction with the appendix Figure 1As shown, a second crossbeam 12 is connected between two second longitudinal beams 11. The two ends of the second crossbeam 12 pass through the two second longitudinal beams 11 respectively. A connecting seat is provided at the end of the second crossbeam 12 that passes through the second longitudinal beams 11. A steering cylinder 5 is provided between each connecting seat and the rear hinge structure 32. By extending and retracting the steering cylinder 5, the front frame 1 and the rear frame 2 can be rotated relative to the hinge center axis, thereby realizing the deflection of the front frame 1 and the rear frame 2 to achieve the purpose of steering.

[0040] Optionally, the front frame 1 further includes a third crossbeam 13, with multiple third crossbeams 13 spaced apart on two second longitudinal beams 11, and each third crossbeam 13 is provided with an installation interface.

[0041] In this embodiment, in conjunction with the appendix Figure 1 As shown, multiple third crossbeams 13 can be connected to the upper end faces of two second longitudinal beams 11 at intervals by bolts, and each third crossbeam 13 is provided with an installation interface for connection to equipment such as oil tanks.

[0042] In addition, this utility model also provides an underground auxiliary transport vehicle for coal mines, including a cab, a cargo box and an articulated frame as described above. The cab is mounted on the front frame 1, the cargo box is mounted on the rear frame 2, and the cargo box is used to tilt relative to the rear frame 2 under the drive of the lifting cylinder 44.

[0043] Since the technical improvements and effects achieved by the underground auxiliary transport vehicle are the same as those of the articulated frame, the technical effects of the underground auxiliary transport vehicle will not be described in detail.

[0044] The terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature.

[0045] Although the present invention has been disclosed above, its protection scope is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, and all such changes and modifications will fall within the protection scope of the present invention.

Claims

1. An articulated vehicle frame, characterized in that, include: The vehicle comprises a front frame (1), a rear frame (2), an articulation mechanism (3), and a lifting mechanism (4). The rear end of the front frame (1) is connected to the front end of the rear frame (2) via the articulation mechanism (3). The rear frame (2) includes two spaced-apart first longitudinal beams (21). The lifting mechanism (4) is positioned between the two first longitudinal beams (21), and its position along the length of the first longitudinal beams (21) is adjustable. The lifting mechanism (4) includes a first crossbeam (41), a support plate (42), and a guard plate (43). 43) and lifting cylinder (44), two first crossbeams (41) are arranged at intervals and are respectively connected between two first longitudinal beams (21), two support plates (42) are connected at intervals between two first crossbeams (41), two guard plates (43) are connected at intervals and detachably between two first crossbeams (41), and both guard plates (43) are located between two support plates (42). Each guard plate (43) is hinged to the adjacent support plate (42) with the lifting cylinder (44).

2. The articulated frame according to claim 1, characterized in that, The first crossbeam (41) has a first connecting part at each end, and the first longitudinal beam (21) has a second connecting part. The second connecting part has multiple parts along the length of the first longitudinal beam (21), and the first connecting part is used to connect with the second connecting part.

3. The articulated frame according to claim 1, characterized in that, The guard plate (43) includes a main plate (431) and ear plate (432) connected to both ends of the main plate (431). The ear plate (432) has a first positioning hole and the first crossbeam (41) has a second positioning hole. The first positioning hole and the second positioning hole are used to connect by bolts to fix the guard plate (43) relative to the first crossbeam (41).

4. The articulated frame according to claim 3, characterized in that, The second positioning holes are spaced apart along the length of the first crossbeam (41).

5. The articulated frame according to claim 3, characterized in that, The support plate (42) has a first pin hole, the guard plate (43) has a second pin hole, and the lifting cylinder (44) is hinged between the first pin hole and the second pin hole by a pin shaft.

6. The articulated frame according to claim 1, characterized in that, The articulation mechanism (3) includes a front hinge structure (31), a rear hinge structure (32), and a rotary shaft (33). The front hinge structure (31) is connected to the rear end of the front frame (1), the rotary shaft (33) is rotatably connected to the front end of the rear frame (2), and the rear hinge structure (32) is connected to the end of the rotary shaft (33) away from the rear frame (2). The front hinge structure (31) and the rear hinge structure (32) are rotatably connected.

7. The articulated frame according to claim 6, characterized in that, The front frame (1) includes two spaced-apart second longitudinal beams (11), the ends of the two second longitudinal beams (11) near the rear frame (2) are bent toward each other and connected to the front hinge structure (31).

8. The articulated frame according to claim 7, characterized in that, The front frame (1) also includes a second crossbeam (12), which is connected between two second longitudinal beams (11). The two ends of the second crossbeam (12) pass through the two second longitudinal beams (11) respectively, and the two ends of the second crossbeam (12) are respectively provided with connecting seats. Each connecting seat is provided with a steering cylinder (5) between it and the rear hinge structure (32).

9. The articulated frame according to claim 8, characterized in that, The front frame (1) also includes a third crossbeam (13), and multiple third crossbeams (13) are spaced apart on two second longitudinal beams (11), and each third crossbeam (13) is provided with an installation interface.

10. An auxiliary transport vehicle for underground coal mines, characterized in that, It includes a cab, a cargo box, and an articulated frame as described in any one of claims 1-9, wherein the cab is mounted on a front frame (1), the cargo box is mounted on a rear frame (2), and the cargo box is used to tilt relative to the rear frame (2) under the drive of a lifting cylinder (44).

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