A coal mine transportation unloading device

Abstract

The coal mine transportation and unloading device comprises a box body, a driving assembly, a lifting assembly and an unloading assembly, the box body has a cavity and a discharging port in communication with the cavity, the discharging port is used for receiving coal mines, the driving assembly is connected with the box body and used for driving the box body to move, the lifting assembly is connected with the driving assembly, the lifting assembly comprises a telescopic piece, a free end of the telescopic piece is connected with the box body, the telescopic piece is movable between a first position and a second position, so as to drive the box body to rotate around a first axis, the extension direction of the first axis is parallel to the length direction of the box body, the unloading assembly is connected with the box body, the unloading assembly comprises a scraping piece, the scraping piece is located in the cavity, and the scraping piece is movable between a third position and a fourth position. The coal mine transportation and unloading device can reduce the labor intensity of workers and improve the transportation efficiency.

Description

Technical Field

[0001] This invention relates to the field of coal mine transportation technology, and more specifically, to a coal mine transportation unloading device. Background Technology

[0002] When coal is mined underground, the coal needs to be transported to the surface by transport equipment for subsequent processing. Currently, coal mining transport machines are mostly divided into conveyor belt type and box type transport.

[0003] In related technologies, box-type coal mining conveyors have a simple structure and require manual unloading, which cannot achieve the purpose of automatic unloading. At the same time, ordinary box-type coal mining conveyors do not unload completely, and residual coal is easily left at the bottom, resulting in poor unloading effect. Summary of the Invention

[0004] The present invention aims to at least partially solve one of the technical problems in the related art.

[0005] Therefore, embodiments of the present invention propose a coal mine transportation and unloading device that can avoid manual unloading and has the advantage of good unloading effect.

[0006] The coal mine transportation and unloading device of this invention includes:

[0007] A housing having a cavity and a discharge port communicating with the cavity, the discharge port being used to receive coal;

[0008] A drive assembly, connected to the housing, for driving the housing to move;

[0009] A lifting assembly is connected to the driving assembly. The lifting assembly includes a telescopic member, the free end of which is connected to the housing. The telescopic member is movable between a first position and a second position to drive the housing to rotate around a first axis, the extension direction of which is parallel to the length direction of the housing.

[0010] A discharge assembly, connected to the housing, includes a scraper located within the cavity, which is movable between a third position and a fourth position.

[0011] The telescopic component is in the first position, and the scraper component is in the third position;

[0012] The telescopic component is in the second position, and the scraper component moves from the third position to the fourth position to scrape a portion of the coal inside the box to the outside of the box.

[0013] The coal mine transportation unloading device of this invention can use the lifting component to tilt the box to a certain angle, and then use the unloading component to scrape the coal loaded in the box out of the box, thereby realizing the active unloading function, reducing the labor intensity of workers, and using the scraper to scrape off the coal adhering to the inner wall of the box, reducing the coal residue in the box and improving transportation efficiency.

[0014] In some embodiments, the housing includes a bottom wall and a plurality of surrounding walls arranged sequentially along the circumference of the bottom wall. The plurality of surrounding walls includes a movable wall that is rotatable about a second axis parallel to the first axis. The movable wall and the telescopic member are arranged opposite to each other in the width direction of the housing.

[0015] In some embodiments, the coal mine transportation and unloading device of the present invention further includes a tensioning component, which is connected to the housing. The tensioning component includes a tensioning part, which is connected to the movable wall. The tensioning component has a taut state and a slack state.

[0016] The telescopic member is in a first position, and the tensioning component is in a taut state to connect the movable wall to the enclosure wall;

[0017] When the telescopic member is in the second position, the tensioning component is in a relaxed state, and the movable wall rotates about the second axis to disengage at least a portion of the movable wall from the enclosure.

[0018] In some embodiments, an expansion enclosure is also included, which is connected to the housing and arranged around the discharge port, wherein the cross-sectional area of ​​the expansion enclosure gradually increases in the direction from the housing to the expansion enclosure.

[0019] In some embodiments, the unloading assembly includes an unloading drive connected to the scraper for driving the scraper to move between the third position and the fourth position. The scraper includes a first scraping portion, and in a plane orthogonal to the width direction of the housing, the cross-sectional area of ​​the first scraping portion gradually decreases along the direction from the third position to the fourth position.

[0020] In some embodiments, the scraper further includes a second scraping portion, which is connected to the first scraping portion and is rotatable about a third axis, which is parallel to the first axis.

[0021] The scraper is located at the third position, and the height direction of the second scraper is parallel to the height direction of the box body;

[0022] The scraper is located at the fourth position, and the angle between the height direction of the second scraper and the width direction of the box is less than 90 degrees.

[0023] In some embodiments, the second scraping section includes a driving section, a rotating section, and a scraping section connected along the height direction of the second scraping section. The scraping section is located above the rotating section in the height direction of the second scraping section. The scraping section has scraping ribs, which are disposed on the side of the scraping section adjacent to the movable wall. There are multiple scraping ribs, which are spaced apart along the length direction of the housing.

[0024] In some embodiments, the width of the scraper ribs gradually decreases in the direction along the scraper pointing towards the movable wall.

[0025] In some embodiments, the unloading assembly further includes a scraper drive member connected to the first scraper section. The scraper drive member includes a scraper drive section connected to the drive section for driving the second scraper section to rotate about a third axis.

[0026] In some embodiments, the unloading assembly further includes an elastic element, a first end of which is connected to the first scraping portion, and a second segment of which is connected to the second scraping portion. The elastic element has a compressed state and a released state.

[0027] The scraper is in the third position, and the elastic element is in the compressed state.

[0028] The scraper is in the fourth position, and the elastic element is in the released state, for driving the second scraper to rotate about the third axis. Attached Figure Description

[0029] Figure 1 This is a schematic diagram of the structure of a coal mine transportation and unloading device according to an embodiment of the present invention.

[0030] Figure 2 This is a schematic diagram of the structure of a coal mine transportation and unloading device according to an embodiment of the present invention.

[0031] Figure 3 This is a schematic diagram of a portion of the structure inside the housing of the coal mine transportation and unloading device according to an embodiment of the present invention (the scraper is in the third position).

[0032] Figure 4 yes Figure 3 Top view.

[0033] Figure 5 yes Figure 4 The diagram shows a cross-sectional view along direction AA.

[0034] Figure 6 This is a schematic diagram of the scraper component of the coal mine transportation and unloading device in the fourth position according to an embodiment of the present invention.

[0035] Figure 7 yes Figure 6 The schematic cross-sectional view along the BB direction shown in the figure.

[0036] Figure 8 yes Figure 7 The three-dimensional schematic diagram shown is shown below.

[0037] Figure label:

[0038] Box body 1; cavity 11; material discharge port 12; bottom wall 13; surrounding wall 14; movable wall 141; chute 142;

[0039] Drive assembly 2; drive frame 21; drive wheel 22; drive power supply 23;

[0040] Lifting component 3; Telescopic component 31;

[0041] Unloading assembly 4; unloading drive 41; scraper 42; first scraper section 421; protrusion 4211; second scraper section 422; drive section 4221; rotating section 4222; scraper section 4223; scraper rib 42231; elastic element 43;

[0042] 5. Tensioning component; 51.

[0043] Expanded enclosure 6;

[0044] Connector 7. Detailed Implementation

[0045] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0046] like Figures 1-8 As shown, the coal mine transportation and unloading device of this embodiment includes: a box body 1, a drive assembly 2, a lifting assembly 3, and an unloading assembly 4.

[0047] The housing 1 has a cavity 11 and a discharge port 12 communicating with the cavity 11, the discharge port 12 being used to receive coal. A drive assembly 2 is connected to the housing 1 and is used to drive the housing 1 to move. A lifting assembly 3 is connected to the drive assembly 2, and the lifting assembly 3 includes a telescopic member 31, the free end of which is connected to the housing 1. The telescopic member 31 is movable between a first position and a second position to drive the housing 1 to rotate about a first axis, the extension direction of which is parallel to the length direction of the housing 1.

[0048] Specifically, such as Figure 1 and Figure 2As shown, the discharge port 12 is located at the top of the housing 1 to receive coal falling into the cavity 11 of the housing 1. The drive assembly 2 includes a drive frame 21, a drive wheel 22, and a drive power supply 23. The housing 1 is placed on the drive frame 21 and is hinged to the drive frame 21. The drive wheel 22 is located at the bottom of the drive frame 21. The drive power supply 23 is connected to the drive wheel 22 to provide the electrical energy required for the drive wheel 22 to rotate.

[0049] It is understandable that the telescopic component 31 can be a hydraulic cylinder, a pneumatic cylinder, or a telescopic motor, etc. Taking the telescopic component 31 as a hydraulic cylinder as an example, the free end of the telescopic component 31 is the telescopic shaft of the hydraulic cylinder, one end of the telescopic component 31 is set on the drive frame 21, and the free end of the telescopic component 31 is hinged to the bottom of the housing 1.

[0050] It should be noted that when the telescopic member 31 is in the first position (i.e., the position of the free end when the telescopic member 31 is not activated, as shown in the figure), the box 1 is generally in a horizontal state; when the telescopic member 31 is in the second position (not shown in the figure), the free end extends relative to the telescopic member 31 and drives the box 1 to rotate around the hinge axis connecting the box 1 and the drive frame 21, wherein the axis of the hinge axis is the first axis.

[0051] The unloading assembly 4 is connected to the box body 1. The unloading assembly 4 includes a scraper 42, which is located in the cavity 11. The scraper 42 is movable between a third position and a fourth position. In the first position, the telescopic member 31 is in the third position, and the scraper 42 is in the second position. The scraper 42 moves from the third position to the fourth position to scrape out part of the coal inside the box body 1 to the outside of the box body 1.

[0052] It is understandable that, such as Figures 3-8 As shown, the scraper 42 is movable in the left and right direction. When the telescopic member 31 is in the first position, the scraper 42 is located on the rightmost side of the cavity 11 of the box body 1. When the telescopic member 31 is in the second position, the box body 1 rotates and the scraper 42 moves from right to left in order to scrape the coal in the cavity 11 of the box body 1 out of the box body 1.

[0053] In other words, the coal mine transportation unloading device of this embodiment can use the lifting component 3 to tilt the box 1 to a certain angle, and then use the unloading component 4 to scrape the coal loaded in the box 1 out of the box 1, thereby realizing the active unloading function, reducing the labor intensity of workers, and using the scraper 42 to scrape off the coal adhering to the inner wall of the box 1, reducing the coal residue in the box 1 and improving transportation efficiency.

[0054] Optionally, such as Figure 1 and 2As shown, the coal mine transport and unloading device of this embodiment of the invention also includes multiple connecting members 7, which are connected to the enclosure wall 14 of the housing 1 and arranged opposite to each other in the front-rear direction. Specifically, one end of the connecting member 7 is hinged to the housing 1 so that when multiple coal mine transport and unloading devices are used, two adjacent coal mine transport and unloading devices can be connected using the connecting member 7. The connecting members 7 of two adjacent coal mine transport and unloading devices can be connected by a plug-in method, or other methods such as a snap-fit ​​method can also be used.

[0055] In some embodiments, the housing 1 includes a bottom wall 13 and a plurality of surrounding walls 14 arranged sequentially along the circumference of the bottom wall 13. Each surrounding wall 14 includes a movable wall 141, which is rotatable about a second axis parallel to a first axis. The movable wall 141 and the telescopic member 31 are located in the width direction of the housing 1 (e.g.,...). Figure 1 Arranged opposite each other in the left and right directions.

[0056] Specifically, such as Figure 1 , Figure 7 and Figure 8 As shown, the movable wall 141 is located on the left side of the box 1. The upper end of the movable wall 141 is hinged to the adjacent enclosure wall 14 so that the movable wall 141 can rotate about the hinge axis, wherein the axis of the hinge axis is the second axis.

[0057] It is understandable that when the telescopic component 31 is in the first position (e.g., Figure 1 As shown in the figure, the position of the telescopic component 31 is such that the height of the movable wall 141 is generally consistent with the vertical direction under the action of gravity. When the telescopic component 31 is in the second position (not shown in the figure), the box 1 tilts to the left. At this time, the movable wall 141 is still generally consistent with the vertical direction under the action of gravity. That is, the movable wall 141 rotates relative to the other walls 14 of the box 1, so that a discharge port for easy unloading is formed between the movable wall 141 and the walls 14. Then, the scraper 42 is moved from the third position to the fourth position, so that the scraper 42 can realize the function of scraping the coal in the box 1.

[0058] Preferably, the bottom wall 13 of the scraper 42 contacts the bottom wall 13 of the housing 1, and the front and rear walls 14 of the housing 1 are provided with sliding grooves 142 extending in the left and right direction. Both the front and rear ends of the scraper 42 are provided with protrusions that match the sliding grooves 142, so as to facilitate the movement of the scraper 42 between the third position and the fourth position.

[0059] Optionally, the front and rear ends of the scraper 42 may also be provided with rollers that match the slide groove 142, further facilitating the movement of the scraper 42 between the third and fourth positions.

[0060] In some embodiments, the coal mine transport unloading device of the present invention further includes a tensioning component 5, which is connected to the housing 1. The tensioning component 5 includes a tensioning part 51, which is connected to the movable wall 141. The tensioning component 5 has a tensile state and a slack state. In the first position, the telescopic member 31 is in the tensile state, so as to connect the movable wall 141 to the enclosure wall 14. In the second position, the telescopic member 31 is in the slack state, and the movable wall 141 rotates about the second axis so that at least a portion of the movable wall 141 is disengaged from the enclosure wall 14.

[0061] It is understandable that, such as Figure 1 and Figure 2 As shown, the tensioning component 5 is located on the front side of the housing 1. The tensioning component 5 can be a winding machine, and the tape of the winding machine is the tensioning part 51. That is to say, when the tensioning component 5 is in a taut state, the winding machine starts and retracts the tape into the winding machine until the tape can no longer be retracted, thereby using the tensioning part 51 to tightly adhere the movable wall 141 to the enclosure wall 14 to prevent coal from spilling out of the housing 1. When the tensioning component 5 is in a slack state, the winding machine tube wall and the tape are in a free state, and at this time the movable wall 141 is only subject to gravity.

[0062] In other words, when the telescopic component 31 is in the first position, the tensioning assembly 5 is activated and uses the tape to bring the right side wall of the movable wall 141 into contact with the left end of the enclosure wall 14, preventing the coal inside the box 1 from spilling out. When the telescopic component 31 is in the second position, the movable wall 141 is not under the tension of the tape and can rotate relative to the enclosure wall 14 under the action of gravity, so that a discharge port 12 is formed on the left side of the box 1 for discharging the coal inside the box 1 from the discharge port 12. When the telescopic component 31 is in the second position, since the box 1 is tilted to the left, its bottom wall 13 is in a state where the right side is higher and the left side is lower, which facilitates the coal inside the box 1 to automatically move towards the discharge port 12 under the action of gravity and be discharged from the discharge port 12.

[0063] In some embodiments, the coal mine transportation unloading device of the present invention further includes an expansion plate 6, which is connected to the box body 1 and arranged around the discharge port 12. The cross-sectional area of ​​the expansion plate 6 gradually increases in the direction from the box body 1 to the expansion plate 6.

[0064] Specifically, such as Figure 1 and Figure 2 As shown, the bottom end of the expansion plate 6 is connected to the top end of the box 1, and the bottom end of the expansion plate 6 has the same cross-sectional area as the discharge port 12. The cross-sectional area of ​​the expansion plate 6 gradually increases from bottom to top, which facilitates the coal to fall from the discharge port 12 into the cavity 11 and reduces the spillage of coal.

[0065] In some embodiments, the unloading assembly 4 includes an unloading drive 41 connected to a scraper 42 for driving the scraper 42 to move between a third position and a fourth position. The scraper 42 includes a first scraper portion 421, and in a plane orthogonal to the width direction of the housing 1, the cross-sectional area of ​​the first scraper portion 421 gradually decreases along the direction from the third position to the fourth position.

[0066] It is understandable that the unloading drive component 41 can be a hydraulic cylinder, a pneumatic cylinder, or a telescopic motor, etc., and of course, it can also be other equipment with telescopic functions. Specifically, such as Figure 1 and Figure 2 As shown, the unloading drive unit 41 includes a motor, a worm gear assembly, and a connecting shaft that matches the worm gear. The connecting shaft is connected to the scraper 42. The motor and the worm gear are connected via a coupling. When the telescopic member 31 changes from the first position to the second position, the motor is started, causing the motor's output shaft to rotate in the forward direction. The motor's output shaft drives the worm gear assembly to rotate, thereby moving the connecting shaft. The connecting shaft then drives the scraper 42 to move from the third position to the fourth position.

[0067] Similarly, starting the motor and causing the motor's output shaft to rotate in the opposite direction will move the scraper 42 from the fourth position to the third position.

[0068] It should be noted that the bottom wall 13 of the first scraper 421 is in contact with the bottom wall 13 of the box body 1. The first scraper 421 is generally wedge-shaped. That is, when the first scraper 421 moves from the third position to the fourth position, the first scraper 421 can easily scrape off the coal on the bottom wall 13 of the box body 1, avoiding the coal from sticking to the bottom wall 13 of the box body 1. At the same time, since the first scraper 421 is wedge-shaped, the scraped coal has an upward trend, which can further squeeze the coal above the first scraper 421, which is conducive to the discharge of coal.

[0069] In some embodiments, the scraper 42 further includes a second scraper portion 422, which is connected to the first scraper portion 421 and is rotatable about a third axis, which is parallel to the first axis. In a third position, the scraper 42 has a height direction parallel to the height direction of the housing 1. In a fourth position, the scraper 42 has an angle of less than 90 degrees between the height direction of the second scraper portion 422 and the width direction of the housing 1.

[0070] Specifically, such as Figure 3As shown, the right end of the first scraping part 421 is provided with a protrusion 4211, and there are two protrusions 4211. The two protrusions 4211 are arranged opposite each other in the front-back direction. The protrusions 4211 are provided with shaft holes extending in the front-back direction. Both the front and rear ends of the second scraping part 422 are provided with rotating shafts that match the shaft holes. The axis of the rotating shaft is the third axis, so that the second scraping part 422 can rotate relative to the first scraping part 421 around the third axis.

[0071] It is understandable that, such as Figures 3-5 As shown, when the scraper 42 is in the third position, the height direction of the second scraper 422 is consistent with the vertical direction; when the scraper 42 moves from the third position to the fourth position, the second scraper 422 tilts to the left so that the second scraper 422 forms an angle of less than 90 degrees with the bottom wall 13 of the housing 1, i.e. Figure 7 and Figure 8 As shown.

[0072] In other words, when the scraper 42 is disengaged from the third position, the second scraper 422 tilts to the left. During the process of the scraper 42 moving from the third position to the fourth position, the left side wall of the second scraper 422 is used to gather the coal towards the lower left of the second scraper 422, which avoids excessive accumulation of coal and its retention in the cavity 11 of the box body 1, thereby improving the transportation efficiency of the coal.

[0073] Preferably, the height of the second scraper section 422 is the same as the height of the cavity 11 of the housing 1.

[0074] In some embodiments, the second scraping section 422 includes a driving section 4221, a rotating section 4222, and a scraping section 4223 connected along the height direction of the second scraping section 422. The scraping section 4223 is located above the rotating section 4222 in the height direction of the second scraping section 422. The scraping section 4223 has scraping ribs 42231, which are provided on the side of the scraping section 4223 near the movable wall 141. There are multiple scraping ribs 42231, and the multiple scraping ribs 42231 are arranged at intervals along the length direction of the housing 1.

[0075] Specifically, such as Figure 5 As shown, the drive section 4221, the rotating section 4222, and the scraping section 4223 are arranged sequentially from top to bottom. The rotating shaft is located on the rotating section 4222 for connection with the first scraping part 421. The scraping rib 42231 is located on the left side wall of the scraping section 4223 to ensure that the scraping part 42 can crush the coal when it moves from the third position to the fourth position.

[0076] It is understandable that during transportation, coal tends to stick to the inner wall of the container 1 due to environmental factors. However, the scraping ribs 42231 can increase the friction between coal particles, thereby reducing coal adhesion and improving transportation efficiency.

[0077] Preferably, the width of the scraper ribs 42231 gradually decreases in the direction from the scraper 42 to the movable wall 141.

[0078] It is understandable that, such as Figures 3-8 As shown, in a plane orthogonal to the left and right directions, the cross-sectional area of ​​the scraper rib 42231 gradually decreases from right to left, that is, the left end of the scraper rib 42231 is a pointed tip, which can increase the contact area between the coal mine and the second scraper part 422, improve the friction between the coal mine and the second scraper part 422, and thus scrape away the coal mine.

[0079] Preferably, such as Figures 3-8 As shown, the front and rear scraping ribs 42231 of the multiple scraping ribs 42231 are wedge-shaped blocks to better scrape the coal on the inner wall surface of the front and rear enclosure 14.

[0080] In some embodiments, the unloading assembly 4 further includes an elastic member 43, the first end of which is connected to the first scraper 421, and the second section of which is connected to the second scraper 422. The elastic member 43 has a compressed state and a released state. When the scraper 42 is in a third position, the elastic member 43 is in a compressed state; when the scraper 42 is in a fourth position, the elastic member 43 is in a released state, so as to drive the second scraper 422 to rotate about a third axis.

[0081] Specifically, such as Figure 5 and Figure 7 As shown, the first end of the elastic member 43 (i.e., the left end of the elastic member 43) is connected to the right end of the first scraper section 421, and the second end of the elastic member 43 (i.e., the right end of the elastic member 43) is connected to the drive section 4221 of the second scraper section 422.

[0082] It is understandable that, such as Figures 3-8 As shown, when the scraper 42 is in the third position, the right side wall of the second scraper 422 contacts the enclosure wall 14 of the housing 1, so that the height direction of the second scraper 422 is consistent with the vertical direction. At this time, the elastic member 43 is squeezed by the drive section 4221 and is in a compressed state. After the scraper 42 leaves the third position, as... Figure 7 and Figure 8 As shown, when the scraper 42 is in the fourth position, the second scraper 422 is out of contact with the enclosure wall 14 of the housing 1, and under the action of the elastic force of the elastic member 43 (the direction of the elastic force is from left to right), the second scraper 422 can tilt to the left.

[0083] It should be noted that the elastic element 43 can be a spring, an elastic metal sheet, or other materials with elastic properties such as elastic rubber.

[0084] In some other embodiments, the unloading assembly 4 further includes a scraping drive member connected to the first scraping section 421. The scraping drive member includes a scraping drive section connected to the drive section 4221 for driving the second scraping section 422 to rotate about a third axis.

[0085] It is understood that the scraping drive can be a telescopic motor, a cylinder, a hydraulic cylinder, etc. That is, the scraping drive is located on the first scraping part 421, and the output shaft of the scraping drive is connected to the drive section 4221 of the second scraping part 422, so that when the scraping drive is started, the second scraping part 422 is driven to tilt to the left.

[0086] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention.

[0087] Furthermore, 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. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0088] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0089] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "over," and "on top" of the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0090] In this invention, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0091] Although the above embodiments have been shown and described, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Any changes, modifications, substitutions and variations made to the above embodiments by those skilled in the art are within the protection scope of the present invention.

Claims

1. A coal mine haulage unloading device, characterised in that, The utility model relates to a coal mine unloading device, comprising: a box body having a cavity and a material inlet communicating with the cavity, the material inlet being used for receiving coal mine; a driving assembly connected with the box body and used for driving the box body to move; a lifting assembly connected with the driving assembly, the lifting assembly comprising a telescopic member, a free end of the telescopic member being connected with the box body, the telescopic member being movable between a first position and a second position to drive the box body to rotate about a first axis, the first axis extending in parallel with a length direction of the box body; a discharging assembly connected with the box body, the discharging assembly comprising a scraping member located in the cavity, the scraping member being movable between a third position and a fourth position, the scraping member comprising a first scraping portion and a second scraping portion, in a plane perpendicular to a width direction of the box body, a cross-sectional area of the first scraping portion gradually decreases in a direction from the third position to the fourth position, the second scraping portion being connected with the first scraping portion and being rotatable about a third axis, the third axis being parallel to the first axis, in the third position, a height direction of the second scraping portion is parallel to a height direction of the box body, in the fourth position, an included angle between the height direction of the second scraping portion and the width direction of the box body is less than 90 degrees, the second scraping portion comprising a driving section, a rotating section and a scraping section connected in a height direction of the second scraping portion, the scraping section being located above the rotating section in the height direction of the second scraping portion, the scraping section having a plurality of scraping ribs, the plurality of scraping ribs being arranged at intervals in the length direction of the box body, wherein in the first position, the telescopic member is located at the third position; in the second position, the telescopic member is moved from the third position to the fourth position to scrape part of the coal mine in the box body out of the box body.

2. A coal mine haulage unloading device according to claim 1, characterised in that, the box body comprising a bottom wall and a plurality of surrounding walls arranged in sequence in a circumferential direction of the bottom wall, the plurality of surrounding walls comprising a movable wall, the movable wall being rotatable about a second axis, the second axis being parallel to the first axis, the movable wall being arranged opposite to the telescopic member in a width direction of the box body.

3. A coal mine conveyor unloading device according to claim 2, characterised in that, further comprising a tensioning assembly connected with the box body, the tensioning assembly comprising a tensioning portion connected with the movable wall, the tensioning assembly having a tensioned state and a relaxed state, in the first position, the telescopic member is located at the third position, the tensioning assembly being in the tensioned state to connect the movable wall with the surrounding wall; in the second position, the telescopic member is moved from the third position to the fourth position, the tensioning assembly being in the relaxed state, the movable wall being rotated about the second axis to make at least part of the movable wall disengage from the surrounding wall.

4. A coal mine conveyor unloading device according to claim 3, characterised in that, further comprising an expansion surrounding plate connected with the box body and arranged around the material inlet, a cross-sectional area of the expansion surrounding plate gradually increases in a direction from the box body to the expansion surrounding plate.

5. A coal mine conveyor unloading device according to any one of claims 2-4, characterised in that, The discharge assembly includes a discharge drive member connected to the scraping member for driving the scraping member to move between the third position and the fourth position.

6. A coal mine conveyor unloading device according to claim 5, characterised in that, The scraping rib is arranged on the side of the scraping section close to the movable wall.

7. A coal mine conveyor unloading device according to claim 6, characterised in that, The width of the scraping rib gradually decreases in the direction of the movable wall.

8. A coal mine conveyor unloading device according to claim 7, characterised in that, The discharge assembly further includes a scraping drive member connected to the first scraping part, the scraping drive member including a scraping drive part connected to the drive section for driving the second scraping part to rotate about a third axis.

9. A coal mine conveyor unloading device according to claim 7, characterised in that, The discharge assembly further includes an elastic member, a first end of the elastic member being connected to the first scraping part, a second end of the elastic member being connected to the second scraping part, the elastic member having a compressed state and a released state, The scraping member is in the third position, and the elastic member is in the compressed state; The scraping member is in the fourth position, and the elastic member is in the released state for driving the second scraping part to rotate about a third axis.

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