Tipping bucket of unmanned mine car and tilting method of tipping bucket
By designing various unloading methods and combined structures, the unmanned mining truck tipper can flexibly unload materials in narrow spaces or obstacle situations, solving the problems of low efficiency and material residue of traditional tippers in these scenarios, and improving unloading efficiency and adaptability.
Patent Information
- Application Number
- CN202511319589.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-16
- Publication Date
- 2025-12-23
AI Technical Summary
Traditional mine car tippers are difficult to unload materials flexibly in narrow spaces or in the presence of obstacles, resulting in low unloading efficiency, material residue, and increased energy consumption.
An unmanned mining truck tipper was designed, employing multiple unloading methods, including conventional tipping unloading, single-side unloading, and double-side unloading. Through the combination of hydraulic cylinders, drums, rotating parts, and reversing unloading components, the tipping frame can be flexibly tilted and unloaded. Flexible pads and hydraulic buffers are combined to ensure stability and smooth unloading.
It improves the flexibility and efficiency of unloading by the tipping bucket, adapts to different working conditions, avoids material residue, reduces time and energy consumption caused by multiple operations, and meets diverse unloading requirements.
Smart Images
Figure CN121180100A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of mine car tipping, in particular to a tipping method of an unmanned mine car. BACKGROUND
[0002] It is well known that in modern mining, large construction sites and other industrial scenes, material transportation is a crucial link, and unmanned mine cars as a kind of efficient, safe and adaptable to harsh environment transport tool, its supporting tipping structure and unloading method have a key influence on the smoothness, efficiency of the whole operation process and the accuracy of material handling.
[0003] In some special operation scenes, the traditional mine car tipping unloading method faces many challenges, and the existing technology has the following problems: due to the limitation of the narrow space in the mine, the conventional tipping unloading to the tail will be limited by space, which cannot fully expand the operation, resulting in that the material cannot be completely unloaded or the mine car position needs to be adjusted many times, which not only reduces the unloading efficiency, but also increases the running time and energy consumption of the equipment, and the unloading site may have obstacles on one side or only one side for unloading, the traditional tipping cannot flexibly meet the demand of one-side unloading, which may cause the material to accumulate in the tipping and cannot be smoothly discharged, affecting the subsequent operation. SUMMARY
[0004] In view of the deficiencies of the prior art, the present application provides a tipping method of an unmanned mine car, which has multiple unloading modes and can adapt to narrow and obstacle scenes to improve the unloading flexibility and efficiency of the unmanned mine car tipping.
[0005] The above technical purpose of the present application is realized by the following technical scheme: a tipping method of an unmanned mine car, comprising a main frame, a connecting frame is connected to the bottom of the main frame, a vehicle body frame is rotatably connected to the bottom of the connecting frame, a turnover hydraulic cylinder is rotatably connected to the inside of the vehicle body frame, the other end of the turnover hydraulic cylinder is rotatably connected to the connecting frame, and a unloading structure is rotatably connected to the inside of the main frame. The unloading structure comprises a turnover frame, the turnover frame is arranged at the bottom of the inside of the main frame and is rotatably connected to the main frame, a protective shell is connected to the top of the main frame on both sides, a main shaft is rotatably connected to the inside of the protective shell, a winding drum is sleeved on the surface of the main shaft, a steel cable is wound and connected to the surface of the winding drum, the other end of the steel cable is connected to the turnover frame, and a direction-changing unloading assembly is rotatably connected to the inside of the turnover frame.
[0006] By means of the technical scheme, the combination of the unloading structure and the traditional unloading mode can cope with various unloading scenes, and when a conventional unloading site is suitable, the conventional turnover unloading can be realized by means of the turnover hydraulic cylinder jacking; when the site is limited and only one-side unloading is available, the turnover frame can be tilted to one side together with the direction-changing unloading assembly by means of the winding drum, the rotating member and the like, so that the material is unloaded from one side of the dump truck; in the case of two-side unloading, the direction-changing unloading assembly can make the material arch in the middle, so that the material is smoothly discharged from both sides of the dump truck, thereby greatly improving the unloading flexibility and adapting to different working conditions.
[0007] The application is further provided that the direction-changing unloading assembly comprises two bearing plates, one side of the bearing plate close to the turnover frame is rotationally connected with the turnover frame, and a connecting piece is arranged between the opposite sides of the two bearing plates, a plurality of supports are bolted to the bottom of the turnover frame, two screw rods are rotationally connected in the supports, and a screw sleeve is threadedly connected to the surface of the screw rod, a connecting block is bolted between the opposite sides of the two screw sleeves, and a movable frame is bolted to the top of the connecting block and the bottom of the bearing plate.
[0008] By means of the technical scheme, when two-side unloading special unloading operation is needed, the screw rod is driven by the external reduction motor, and the screw sleeve moves along the axial direction of the screw rod by the thread cooperation between the screw rod and the screw sleeve, and the bearing plate is turned about the connecting part with the turnover frame by the connecting block, the movable frame and the support rod, so that the two bearing plates arch at the connecting piece, and the material on the bearing plate is unloaded from the side of the dump truck in the predetermined direction, thereby improving the adaptability of the dump truck to different unloading scenes and avoiding the problem that the material cannot be smoothly unloaded due to site limitation.
[0009] The application is further provided that the turnover frame is bolted with rotating members on both sides, the rotating member comprises a connecting shaft, and the connecting shaft is in close contact with a clamping plate on both sides of the surface, the bottom of the clamping plate is provided with a fixed block, and the side close to the inner wall of the main frame is bolted with the fixed block, and the bottom of the clamping plate is penetrated by a movable rod, and the side close to the inner wall of the fixed block is bolted with the movable rod.
[0010] The technical scheme is adopted, the clamping plate is in close contact with the connecting shaft under the limitation of the movable rod under normal circumstances, the clamping plate is kept in contact with the connecting shaft, the connection between the turnover frame and the main frame is ensured, and the stability of the whole structure of the dump truck is ensured, the close contact between the clamping plate and the connecting shaft is changed when unilateral unloading operation is needed, the clamping plate is separated from the connecting shaft, the turnover frame and the main frame are separated, the turnover frame and the main frame are inclined to one side with the other rotating part as a fulcrum, the material on the bearing plate is unloaded from one side of the dump truck, the flexibility of unloading of the dump truck is increased, the dump truck can better adapt to different unloading sites and working conditions, and the problem that the traditional dump truck structure cannot meet the special needs of unilateral unloading due to the fixed structure is avoided.
[0011] The clamping plate is rotatably connected between opposite sides of the clamping plate, a connecting rod is rotatably connected between the opposite sides of the clamping plate, and an electric cylinder is rotatably connected to the clamping plate.
[0012] The technical scheme is adopted, the clamping plate is in close contact with the connecting shaft under the limitation of the movable rod under normal circumstances, the clamping plate is kept in contact with the connecting shaft, the connection between the turnover frame and the main frame is ensured, and the stability of the whole structure of the dump truck is ensured, the close contact between the clamping plate and the connecting shaft is changed when unilateral unloading operation is needed, the clamping plate is separated from the connecting shaft, the turnover frame and the main frame are separated, the turnover frame and the main frame are inclined to one side with the other rotating part as a fulcrum, the material on the bearing plate is unloaded from one side of the dump truck, the flexibility of unloading of the dump truck is increased, the dump truck can better adapt to different unloading sites and working conditions, and the problem that the traditional dump truck structure cannot meet the special needs of unilateral unloading due to the fixed structure is avoided.
[0013] The main frame is provided with a unloading hole position used in cooperation with the direction-changing unloading assembly, and a unloading side plate is rotatably connected to the inside of the unloading hole position.
[0014] The technical scheme is adopted, the clamping plate is in close contact with the connecting shaft under the limitation of the movable rod under normal circumstances, the clamping plate is kept in contact with the connecting shaft, the connection between the turnover frame and the main frame is ensured, and the stability of the whole structure of the dump truck is ensured, the close contact between the clamping plate and the connecting shaft is changed when unilateral unloading operation is needed, the clamping plate is separated from the connecting shaft, the turnover frame and the main frame are separated, the turnover frame and the main frame are inclined to one side with the other rotating part as a fulcrum, the material on the bearing plate is unloaded from one side of the dump truck, the flexibility of unloading of the dump truck is increased, the dump truck can better adapt to different unloading sites and working conditions, and the problem that the traditional dump truck structure cannot meet the special needs of unilateral unloading due to the fixed structure is avoided.
[0015] The clamping plate includes an outer steel plate, the bottom of the outer steel plate is provided with an elastic support plate, the bottom of the elastic support plate is provided with a base plate, a cavity is formed between the base plate and the elastic support plate, a plurality of equally spaced hydraulic buffers are arranged in the cavity and the connecting piece, and connecting pipes are communicated between adjacent two hydraulic buffers.
[0016] By adopting the technical scheme, when the material falls on the bearing plate, the initial impact force of the material is first borne by the outer steel plate, the outer steel plate transmits the impact force to the elastic supporting plate, the elastic supporting plate deforms according to the size of the impact force, so that the impact force is dispersed to a certain extent, meanwhile, a cavity is formed between the base plate at the bottom of the elastic supporting plate and the side opposite to the elastic supporting plate, the hydraulic buffer in the cavity buffers the transmitted impact force, and the hydraulic oil in the buffering process can flow between the buffers through the connecting pipe, so that the pressure between the buffers is balanced, and more uniform buffering effect is achieved.
[0017] The connecting piece further comprises a connecting shell, connecting frames are arranged on both sides of the connecting shell, and the side of the connecting frame close to the bearing plate is bolted to the bearing plate, an extension plate is bolted to the top of the connecting frame, and the extension plate is slidingly connected to the connecting shell, the top and bottom of the inner wall of the connecting shell are bolted to the hydraulic buffers, a plurality of limiting rails are bolted in the connecting shell at equal intervals, and a connecting plate is arranged in the limiting rail.
[0018] By adopting the technical scheme, when the connecting piece is impacted, the hydraulic buffer in the connecting piece buffers the impact force, so as to protect the connecting piece, when the two bearing plates are flipped in opposite directions, the corresponding connecting frame and extension plate are synchronously driven to move, the connecting plate is slidingly driven in the limiting rail while the connecting frame moves, so as to limit the movement track of the connecting frame, and the extension plate can close the connecting position of the connecting frame and the connecting shell, so that the material can be smoothly unloaded.
[0019] The steel cable is arranged at four corners in the main frame in a rectangular shape, and the surface of the steel cable is provided with a guide wheel, and the side of the guide wheel close to the protective shell is bolted to the protective shell.
[0020] By arranging the steel cable at four corners in the main frame in a rectangular shape and arranging the guide wheel on the surface of the steel cable, the steel cable can pull the flipping frame more stably and accurately during winding and unwinding, so as to ensure the reliability and accuracy of the special unloading mode based on the winding of the steel cable, the guide wheel can guide the movement direction of the steel cable, reduce the friction between the steel cable and other components, prolong the service life of the steel cable, and prevent the steel cable from being stuck or deviated during movement, so as to ensure the smooth operation of the unloading operation.
[0021] The connecting frame is provided with a groove in the inside, and the support is arranged in the groove, and the support is arranged in the groove.
[0022] By means of the technical scheme, the recess is arranged to provide a reasonable installation space and support structure for the variable direction unloading assembly, the support can stably support various components of the variable direction unloading assembly, ensure that the components can normally work during unloading, and avoid shaking, deformation or other faults due to lack of support, thereby improving the working stability and reliability of the whole variable direction unloading assembly.
[0023] A tilting method of a dump body of an unmanned mine car, comprising the following steps: S1, when the conventional unloading condition is met, a conventional unloading mode is adopted, that is, a connection frame and a main body frame are lifted by a turnover hydraulic cylinder in a car body frame to make the dump body overturn to the front side to realize conventional unloading work; S2, when the conventional unloading site cannot be met and only one side can be unloaded, a steel cable is wound by a winding drum to make the turnover frame rotate at a certain side pivot and the other side pivot to separate the turnover frame from the main body frame, so that the material on the bearing plate can be unloaded from a certain side of the dump body; S3, when the conventional unloading site cannot be met and both sides can be unloaded, the bearing plate in the variable direction unloading assembly overturns at the connection with the turnover frame as a pivot to make the material be unloaded from both sides of the dump body under the action of gravity.
[0024] Compared with the prior art, the present application provides a dump body of an unmanned mine car and a tilting method thereof, which has the following beneficial effects: The dump body of the unmanned mine car and the tilting method thereof are combined with the conventional unloading mode by arranging the unloading structure, can cope with various unloading scenes, can realize conventional overturning unloading by lifting through the turnover hydraulic cylinder when the conventional unloading site is suitable, can make the turnover frame tilt to a certain side with the variable direction unloading assembly by using the winding drum, the rotating member and the like to make the material be unloaded from a certain side of the dump body when the site is limited and only one side can be unloaded, and the variable direction unloading assembly can make the material arch in the middle to make the material be smoothly discharged from both sides of the dump body when both sides can be unloaded, thereby greatly improving the unloading flexibility, adapting to different working conditions, ensuring that the material can flow efficiently and be completely unloaded in different scenes through the cooperation of various unloading modes, avoiding material residues, reducing the time and energy waste caused by multiple operations due to incomplete unloading, improving the overall operation efficiency, and meeting the diversification requirements of the dump body unloading of the unmanned mine car in the mining scene. BRIEF DESCRIPTION OF DRAWINGS
[0025] In order to more clearly illustrate the technical scheme in the specific embodiments or prior art, the drawings needed in the following specific embodiment or prior art description will be briefly introduced. Obviously, the drawings in the following description are some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creating any creative labor.
[0026] Figure 1 Structure diagram of a tipping bucket of the unmanned mine car according to an embodiment of the present application; Figure 2 Connection diagram of a main frame and a car body frame according to an embodiment of the present application; Figure 3 Connection diagram of a discharge structure and a main frame according to an embodiment of the present application; Figure 4 Connection diagram of a direction-changing discharge assembly and a turnover frame according to an embodiment of the present application; Figure 5 Connection diagram of a connecting piece and a bearing plate according to an embodiment of the present application; Figure 6 Connection diagram of a rotating piece and a turnover frame according to an embodiment of the present application; Figure 7 Flowchart of a tipping bucket tilting method of the unmanned mine car according to an embodiment of the present application.
[0027] Explanation of reference numerals: 1: main frame; 2: connecting frame; 3: car body frame; 4: turnover hydraulic cylinder; 5: discharge structure; 51: turnover frame; 52: protective shell; 53: main shaft; 54: steel cable; 55: direction-changing discharge assembly; 551: bearing plate; 551a: outer steel plate; 551b: elastic support plate; 551c: base plate; 551d: hydraulic buffer; 551e: connecting pipe; 552: connecting piece; 552a: connecting shell; 552b: connecting frame; 552c: extension plate; 552d: limiting rail; 552e: connecting plate; 553: support; 554: screw rod; 555: screw sleeve; 556: connecting block; 557: movable frame; 558: support rod; 56: winding drum; 6: rotating piece; 61: connecting shaft; 62: clamping plate; 63: fixed block; 64: movable rod; 7: connecting rod; 8: electric cylinder; 9: discharge side plate; 10: flexible pad; 11: guide wheel. DETAILED DESCRIPTION
[0028] The technical solutions of the present application will be described clearly and completely below in conjunction with embodiments. Obviously, the described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application.
[0029] In the description of the present application, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.
[0030] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited. In addition, the terms "mounting", "connecting", "connecting" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication 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.
[0031] Embodiment 1 As Figures 1 to 6 shown, a dump truck of unmanned mine car includes a main frame 1, a connecting frame 2 is bolted to the bottom of the main frame 1, and a car body frame 3 is rotatably connected to the bottom of the connecting frame 2, a turnover hydraulic cylinder 4 is rotatably connected inside the car body frame 3, and the other end of the turnover hydraulic cylinder 4 is rotatably connected with the connecting frame 2, and a discharging structure 5 is rotatably connected inside the main frame 1; The unloading structure 5 comprises a turnover frame 51 arranged at the bottom inside the main body frame 1 and rotationally connected with the main body frame 1, the top of the main body frame 1 is provided with a protective shell 52 on both sides, and the inside of the protective shell 52 is rotationally connected with a main shaft 53, the surface of the main shaft 53 is sleeved with a winding drum 56, and the surface of the winding drum 56 is connected with a steel cable 54, the other end of the steel cable 54 is connected with the turnover frame 51, and the inside of the turnover frame 51 is rotationally connected with a direction-changing unloading assembly 55, the combination of the unloading structure 5 and the traditional unloading mode can cope with various unloading scenes, and when the conventional unloading site is suitable, the conventional turnover unloading can be realized by the jacking of the turnover hydraulic cylinder 4; when the site is limited and only one side can be unloaded, the turnover frame 51 can be tilted with the direction-changing unloading assembly 55 to one side by cooperation of the winding drum 56 and the rotating part 6, so that the material is unloaded from one side of the dump truck; in the case of two-side unloading, the direction-changing unloading assembly 55 can make the middle part of the material arch, so that the material can be smoothly discharged from both sides of the dump truck, greatly improving the unloading flexibility and adapting to different working conditions.
[0032] The direction-changing unloading assembly 55 comprises two bearing plates 551, one side of the bearing plate 551 close to the turnover frame 51 is rotationally connected with the turnover frame 51, and a connecting piece 552 is arranged between the opposite sides of the two bearing plates 551, a plurality of supports 553 are bolted to the bottom of the turnover frame 51, two screw rods 554 are rotationally connected in the inside of the support 553, screw sleeves 555 are threadedly connected with the surfaces of the screw rods 554, a connecting block 556 is bolted between the opposite sides of the two screw sleeves 555 on the front side and the rear side, movable frames 557 are bolted to the top of the connecting block 556 and the bottom of the bearing plate 551, a supporting rod 558 is rotationally connected between the two movable frames 557, by arranging the direction-changing unloading assembly 55, when special unloading operation of two-side unloading is needed, the screw rod 554 is driven by an external reduction motor, and the screw sleeve 555 is moved along the axial direction of the screw rod 554 by the thread cooperation between the screw rod 554 and the screw sleeve 555, the screw sleeve 555 moves, and the bearing plate 551 is turned about the connection between the connecting block 556, the movable frame 557 and the supporting rod 558 as the fulcrum, so that the two bearing plates 551 arch at the connecting piece 552, and the material on the bearing plate 551 can be unloaded from the side of the dump truck according to the predetermined direction by the coordinated action of these components, improving the adaptability of the dump truck to different unloading scenes and avoiding the problem that the material cannot be smoothly unloaded due to site restrictions.
[0033] Both sides of the turnover frame 51 are hingedly connected with rotating members 6, the rotating members 6 comprise connecting shafts 61, and the surfaces of the connecting shafts 61 are in close contact with clamping plates 62 on both sides, the bottom of the clamping plate 62 is provided with a fixed block 63, and the side of the fixed block 63 close to the inner wall of the main frame 1 is hingedly connected with the main frame 1, and the bottom of the clamping plate 62 is penetrated by a movable rod 64, and the side of the movable rod 64 close to the inner wall of the fixed block 63 is hingedly connected with the fixed block 63, by arranging the rotating members 6, under normal circumstances, the clamping plate 62 is in close contact with the surfaces of the connecting shafts 61 on both sides under the limitation of the movable rod 64, so that the turnover frame 51 and the main frame 1 are kept in a connected state, ensuring the stability of the overall structure of the dump truck, when unilateral unloading operation is needed, the close contact state of the clamping plate 62 and the connecting shaft 61 is changed, so that the clamping plate 62 and the connecting shaft 61 are separated, thereby realizing the separation of the turnover frame 51 and the main frame 1, at this time, taking the rotating member 6 on the other side as a fulcrum, the turnover frame 51 and the main frame 1 are inclined to one side, so that the materials on the bearing plate 551 are unloaded from one side of the dump truck, increasing the flexibility of the dump truck unloading, making it better adapt to different unloading sites and working conditions, avoiding the problem that the traditional dump truck structure cannot meet the special needs of unilateral unloading due to its fixed structure.
[0034] The opposite sides of the clamping plate 62 are rotatably connected by a connecting rod 7, and the inside of the fixed block 63 is hingedly connected with an electric cylinder 8, and the side of the electric cylinder 8 close to the clamping plate 62 is rotatably connected with the clamping plate 62, by arranging the connecting rod 7 and the electric cylinder 8, one of the clamping plates 62 is pushed to rotate around the connecting point of the movable rod 64 by the electric cylinder 8, the rotation of this clamping plate 62 will be transmitted to the other clamping plate 62 through the connecting rod 7, so that the other clamping plate 62 also makes corresponding rotating action around its corresponding movable rod 64 connecting point, so that the two clamping plates 62 can change the contact state with the connecting shaft 61 synchronously, realizing the synchronous separation or connection of the turnover frame 51 and the main frame 1, ensuring the stability of the change of the dump truck structure state during unloading operation, avoiding the possibility of jamming or other faults caused by inconsistent action of the clamping plate 62.
[0035] The opposite sides of the clamping plate 62 are rotatably connected by a connecting rod 7, and the inside of the fixed block 63 is hingedly connected with an electric cylinder 8, and the side of the electric cylinder 8 close to the clamping plate 62 is rotatably connected with the clamping plate 62, by arranging the connecting rod 7 and the electric cylinder 8, one of the clamping plates 62 is pushed to rotate around the connecting point of the movable rod 64 by the electric cylinder 8, the rotation of this clamping plate 62 will be transmitted to the other clamping plate 62 through the connecting rod 7, so that the other clamping plate 62 also makes corresponding rotating action around its corresponding movable rod 64 connecting point, so that the two clamping plates 62 can change the contact state with the connecting shaft 61 synchronously, realizing the synchronous separation or connection of the turnover frame 51 and the main frame 1, ensuring the stability of the change of the dump truck structure state during unloading operation, avoiding the possibility of jamming or other faults caused by inconsistent action of the clamping plate 62.
[0036] The bearing plate 551 comprises an outer steel plate 551a, the bottom of the outer steel plate 551a is provided with an elastic supporting plate 551b, and the bottom of the elastic supporting plate 551b is provided with a base plate 551c, a cavity is formed between the side opposite to the elastic supporting plate 551b of the base plate 551c, and a plurality of hydraulic buffers 551d are arranged in the cavity and the inside of the connecting piece 552, and a connecting pipe 551e is communicated between two adjacent hydraulic buffers 551d. By arranging the bearing plate 551, when the material falls on the bearing plate 551, the initial impact force of the material is first borne by the outer steel plate 551a, the impact force is transmitted to the elastic supporting plate 551b, and the elastic supporting plate 551b will deform to a certain extent according to the size of the impact force, so as to disperse the impact force to a certain extent. At the same time, the base plate 551c at the bottom of the elastic supporting plate 551b and the side opposite to the elastic supporting plate 551b form a cavity, and the hydraulic buffer 551d in the cavity can buffer the transmitted impact force. Through the arrangement of the connecting pipe 551e, the hydraulic oil in the buffering process can flow between the buffers, balance the pressure between the buffers, and realize more uniform buffering effect.
[0037] The connecting piece 552 comprises a connecting shell 552a, connecting frames 552b are arranged on both sides of the connecting shell 552a, and the side close to the bearing plate 551 of the connecting frame 552b is bolted with the bearing plate 551. The top of the connecting frame 552b is bolted with an extension plate 552c, and the extension plate 552c is slidingly connected with the connecting shell 552a. The top and bottom of the inner wall of the connecting shell 552a are bolted with the hydraulic buffer 551d, respectively. A plurality of limiting rails 552d are bolted in the inside of the connecting shell 552a at equal intervals, and a connecting plate 552e is arranged in the inside of the limiting rail 552d. The side close to the inner wall of the connecting frame 552b of the connecting plate 552e is rotatably connected with the connecting frame 552b. By arranging the connecting piece 552, when the connecting piece 552 is impacted, the hydraulic buffer 551d in the connecting piece 552 can buffer the impact force, thereby protecting the connecting piece 552. When the two bearing plates 551 are flipped in opposite directions, the corresponding connecting frame 552b and extension plate 552c are simultaneously driven to move. The connecting plate 552e is slid in the limiting rail 552d while the connecting frame 552b moves, so as to limit the movement track of the connecting frame 552b. The extension plate 552c can close the connection between the connecting frame 552b and the connecting shell 552a, so that the material can be smoothly unloaded.
[0038] The steel cable 54 is arranged in the four corners of the main frame 1 in a rectangular shape, and the surface of the steel cable 54 is provided with a guide wheel 11, which is connected to the side of the protective shell 52. Through the rectangular arrangement of the steel cable 54 in the four corners of the main frame 1 and the guide wheel 11 arranged on the surface of the steel cable 54, the steel cable 54 can pull the turnover frame 51 more smoothly and accurately during winding and unwinding, ensuring the reliability and accuracy of the special unloading mode based on the winding of the steel cable 54. The guide wheel 11 can guide the movement direction of the steel cable 54, reduce the friction between the steel cable 54 and other components, prolong the service life of the steel cable 54, and prevent the steel cable 54 from jamming or deviating during movement, ensuring the smooth operation of the unloading operation.
[0039] The interior of the connecting frame 2 is provided with a recess, and the support 553 is inside the recess. The supports 553 are equidistantly distributed inside the turnover frame 51. By providing a recess, a reasonable installation space and support structure are provided for the direction-changing unloading assembly 55. The supports 553 can stably support various components of the direction-changing unloading assembly 55, ensuring that these components can work normally during unloading and will not shake, deform or have other faults due to lack of support, improving the working stability and reliability of the entire unloading assembly.
[0040] The working principle of the embodiment is as follows: when the mine car travels to a site suitable for regular unloading, the overturning hydraulic cylinder 4 in the car body frame 3 is started, the piston rod thereof is extended, the connecting frame 2 and the main body frame 1 connected therewith are jacked up, the main body frame 1 is overturned to the front side about the rotating connection point of the car body frame 3, and along with the overturning of the main body frame 1, the material in the dump body is gradually unloaded under the action of gravity until all the material is unloaded. When the unloading site can only unload on one side, the electric cylinder 8 inside the fixed block 63 is started to push one of the clamping plates 62 to rotate about the connection point with the movable rod 64. The rotation of the clamping plate 62 is transmitted to the other clamping plate 62 through the connecting rod 7, so that the two clamping plates 62 synchronously change the contact state with the connecting shaft 61, the overturning frame 51 and the main body frame 1 are separated on one side, and then the rotating part 6 on the other side is used as a fulcrum. Then, the external reduction motor drives the main shaft 53 to drive the winding drum 56 to rotate, the steel cable 54 wound on the winding drum 56 is wound, the winding of the steel cable 54 pulls the overturning frame 51 to tilt to a specific side about the rotating part 6 as a fulcrum. Along with the tilting of the overturning frame 51, the material on the bearing plate 551 is gradually unloaded from the opening of the dump body on one side (determined by the rotating part 6) under the action of gravity. When the regular unloading site cannot meet the requirement and can unload on both sides, the screw rod 554 in the variable-direction unloading assembly 55 is driven to rotate by the external reduction motor. Along with the rotation of the screw rod 554, the screw sleeve 555 is driven to move along the axial direction of the screw rod 554, and the movement of the screw sleeve 555 drives the bearing plate 551 to overturn about the connection between the overturning frame 51 and the bearing plate 551, so that the two bearing plates 551 are arched at the connecting part 552, and the material is unloaded from the two unloading hole positions of the dump body under the action of gravity.
[0041] Embodiment 2 Reference Figure 7 The application also provides a dump tilting method of the unmanned mine car, which comprises the following steps: S1, when the regular unloading condition is met, a regular unloading mode is adopted, that is, the overturning hydraulic cylinder 4 in the car body frame 3 is used to jack up the connecting frame 2 and the main body frame 1, so that the dump is overturned to the front side to realize the regular unloading work; S2, when the regular unloading site cannot meet the requirement and can only unload on one side, the winding drum 56 is used to wind the steel cable 54, so that the overturning frame 51 is tilted to one side about the rotating part 6 as a fulcrum, the rotating part 6 on the other side separates the overturning frame 51 from the main body frame 1, and the material on the bearing plate 551 can be unloaded from one side of the dump; S3, when the regular unloading site cannot meet the requirement and can unload on both sides, the bearing plate 551 in the variable-direction unloading assembly 55 is used to overturn about the connection between the overturning frame 51 and the bearing plate 551, so that the material is unloaded from both sides of the dump under the action of gravity.
[0042] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.
Claims
1. A tipping bucket for an unmanned mining truck, comprising a main frame (1), characterized in that: The bottom of the main frame (1) is bolted with a connecting frame (2), and the bottom of the connecting frame (2) is rotatably connected with a vehicle frame (3). The inside of the vehicle frame (3) is rotatably connected with a tilting hydraulic cylinder (4), and the other end of the tilting hydraulic cylinder (4) is rotatably connected with the connecting frame (2). The inside of the main frame (1) is rotatably connected with a unloading structure (5). The unloading structure (5) includes a tilting frame (51), which is located at the bottom inside the main frame (1) and is rotatably connected to the main frame (1). Protective shells (52) are bolted to both sides of the top of the main frame (1), and a main shaft (53) is rotatably connected inside the protective shell (52). A drum (56) is sleeved on the surface of the main shaft (53), and a steel cable (54) is wound around the surface of the drum (56). The other end of the steel cable (54) is connected to the tilting frame (51), and a reversing unloading assembly (55) is rotatably connected inside the tilting frame (51).
2. The tipping bucket of an unmanned mining truck according to claim 1, characterized in that: The reversing unloading assembly (55) includes two support plates (551), which are rotatably connected to the side of the flipping frame (51) and a connector (552) is provided between the opposite sides of the two support plates (551). Several brackets (553) are bolted to the bottom of the flipping frame (51). Two screws (554) are rotatably connected inside the brackets (553), and threaded sleeves (555) are threaded onto the surface of the screws (554). A connecting block (556) is bolted between the opposite sides of the two threaded sleeves (555) on the front and rear sides. Movable frames (557) are bolted to the top of the connecting block (556) and the bottom of the support plate (551). A support rod (558) is rotatably connected between the two movable frames (557).
3. The tipping bucket of an unmanned mining truck according to claim 1, characterized in that: Rotating components (6) are bolted to both sides of the flipping frame (51). The rotating component (6) includes a connecting shaft (61), and both sides of the surface of the connecting shaft (61) are in close contact with a clamping plate (62). A fixing block (63) is provided at the bottom of the clamping plate (62), and the fixing block (63) is bolted to the side of the inner wall of the main frame (1). A movable rod (64) passes through the bottom of the inside of the clamping plate (62), and the movable rod (64) is bolted to the side of the inner wall of the fixing block (63).
4. The tipping bucket of an unmanned mining truck according to claim 1, characterized in that: A connecting rod (7) is rotatably connected between the two card plates (62) on opposite sides. An electric cylinder (8) is bolted inside the fixing block (63), and the electric cylinder (8) is rotatably connected to the side of the card plate (62) near it.
5. The tipping bucket of an unmanned mining truck according to claim 3, characterized in that: Both sides of the main frame (1) are provided with unloading holes that cooperate with the unloading assembly (55), and the unloading holes are rotatably connected to the unloading side plate (9). A flexible pad (10) is provided between the flipping frame (51) and the side opposite to the main frame (1), and the flexible pad (10) is located at the top of the connecting shaft (61).
6. The tipping bucket of an unmanned mining truck according to claim 2, characterized in that: The bearing plate (551) includes an outer steel plate (551a), an elastic support plate (551b) is provided at the bottom of the outer steel plate (551a), and a base plate (551c) is provided at the bottom of the elastic support plate (551b). A cavity is formed between the base plate (551c) and the side opposite to the elastic support plate (551b). A plurality of hydraulic buffers (551d) are provided inside the cavity and the connector (552). A connecting pipe (551e) connects two adjacent hydraulic buffers (551d).
7. The tipping bucket of an unmanned mining truck according to claim 6, characterized in that: The connector (552) includes a connecting shell (552a), with connecting frames (552b) on both sides of the connecting shell (552a). The connecting frames (552b) are bolted to the side of the bearing plate (551) near the bearing plate (551). An extension plate (552c) is bolted to the top of the connecting frame (552b), and the extension plate (552c) is slidably connected to the connecting shell (552a). The top and bottom of the inner wall of the connecting shell (552a) are bolted to the hydraulic buffer (551d) respectively. Several limiting rails (552d) are bolted at equal intervals inside the connecting shell (552a), and a connecting plate (552e) is provided inside the limiting rails (552d). The connecting plate (552e) is rotatably connected to the side of the inner wall of the connecting frame (552b) near the connecting frame (552b).
8. The tipping bucket of an unmanned mining truck according to claim 1, characterized in that: The steel cable (54) is rectangular and located at the four corners inside the main frame (1), and the surface of the steel cable (54) is provided with guide wheels (11), which are bolted to the side of the protective shell (52).
9. The tipping bucket of an unmanned mining truck according to claim 1, characterized in that: The connecting frame (2) has a groove inside, and the bracket (553) is located inside the groove. The bracket (553) is evenly distributed inside the flip frame (51).
10. A method for tilting the bucket of an unmanned mining truck as described in any one of claims 1-9, characterized in that: Includes the following steps: S1. When the conditions for unloading are met, the conventional unloading method is adopted, that is, the connecting frame (2) and the main frame (1) are lifted by the tilting hydraulic cylinder (4) in the vehicle frame (3) so that the bucket can be tilted forward to achieve conventional unloading. S2. When the conventional unloading site cannot meet the requirements and only one side can be unloaded, the steel cable (54) is wound up by the drum (56) so that the tilting frame (51) takes the rotating part (6) on one side as the fulcrum, while the rotating part (6) on the other side separates the tilting frame (51) from the main frame (1), so that the material on the bearing plate (551) can be unloaded from one side of the tipping bucket. S3. When the conventional unloading site cannot meet the requirements and unloading can be done from both sides, the bearing plate (551) in the deflection unloading assembly (55) is flipped with the connection point with the tilting frame (51) as the fulcrum, and the material is unloaded from both sides of the tipping bucket under the action of gravity.