Strip mine pit backfilling equipment

Abstract

The utility model discloses strip mine pit backfilling equipment, which relates to the technical field of mining equipment and comprises a carrier loader, a grading device and a lifting device. The grading device is carried on the carrier loader and comprises a box body, a blanking mechanism, a crushing mechanism and a screening mechanism; a blanking bin, a crushing bin, a screening bin and a storage bin are sequentially formed in the box body in the vertical direction; the blanking mechanism is located in the blanking bin and provided with a blanking port, the blanking port is communicated with the crushing bin, the crushing mechanism is arranged in the crushing bin, the crushing bin is communicated with the screening bin, the screening mechanism is arranged in the screening bin, the screening bin is communicated with the storage bin, and a discharging port is formed in the side wall, corresponding to the box body, of the storage bin; a discharging opening is formed in the side wall, corresponding to the box body, of the screening bin, the feeding end of the lifting device can be aligned to the discharging opening, and the discharging end of the lifting device communicates with the discharging bin.

Description

TECHNICAL FIELD

[0001] The utility model relates to mining equipment technical field, concretely relates to a kind of open pit backfilling equipment. BACKGROUND

[0002] After open pit is mined for a period of time, different concave pits of size and depth need to be backfilled. The backfilling method used at present mostly uses a carrier vehicle to transport stone, sand and other backfilling materials to the vicinity of the concave pit and dump them into the pit.

[0003] Although this method can achieve backfilling of the concave pit, the uniformity of the stone after entering the pit during the backfilling process is not good enough due to the different sizes of the stone, resulting in a situation where the concave pit is still uneven after backfilling. In addition, the different sizes of the stone also affect the stability of the backfilled part after backfilling, and after rain, it is easy to collapse and other situations.

[0004] Therefore, there is an urgent need to provide an open pit backfilling equipment to solve the problems existing in the prior art to some extent. SUMMARY

[0005] The utility model aims to provide an open pit backfilling equipment to solve the problems of poor stability and poor flatness of the backfilled part caused by uneven particle size of the backfilling material to some extent.

[0006] The utility model provides an open pit backfilling equipment, which comprises a carrier vehicle, a grading device and a lifting device. The grading device is mounted on the carrier vehicle. The grading device comprises a box body, a material dropping mechanism, a crushing mechanism and a screening mechanism. The box body has a material dropping bin, a crushing bin, a screening bin and a storage bin formed in the vertical direction in sequence. The material dropping mechanism is located in the material dropping bin and forms a material dropping port. The material dropping port is in communication with the crushing bin. The crushing mechanism is arranged in the crushing bin. The crushing bin is in communication with the screening bin. The screening mechanism is arranged in the screening bin. The screening bin is in communication with the storage bin. The storage bin has a discharge port formed on the side wall of the box body. The screening bin has a discharge port formed on the side wall of the box body. The feeding end of the lifting device can be positioned opposite to the discharge port. The discharge end of the lifting device is in communication with the material dropping bin.

[0007] The blanking mechanism comprises a baffle assembly and a first driving assembly; the baffle assembly comprises a first baffle and a second baffle, and the first driving assembly comprises a first driving member and a second driving member; the first baffle and the second baffle are oppositely arranged, the positioning end of the first driving member is rotationally connected with the inner wall of the box body, and the other end is rotationally connected with the first baffle; the positioning end of the second driving member is rotationally connected with the inner wall of the box body, and the other end is rotationally connected with the second baffle, so that the first baffle and the second baffle can rotate relative to the box body and open the blanking bin.

[0008] Specifically, a first mounting table is formed at the position corresponding to the positioning end of the first driving member in the box body, and a second mounting table is formed at the position corresponding to the positioning end of the second driving member; the first driving member is rotationally connected with the first mounting table, and the second driving member is rotationally connected with the second mounting table; the first baffle and the second baffle each comprise a fixed segment and a turnover segment; the driving end of the first driving member is rotationally connected with the turnover segment of the first baffle, and the driving end of the second driving member is rotationally connected with the turnover segment of the second baffle.

[0009] The crushing mechanism comprises a plurality of crushing members and a third driving member corresponding to each of the crushing members; each of the crushing members comprises a rotating shaft and a plurality of crushing blocks; the crushing blocks are arranged along the axial direction of the rotating shaft and distributed along the circumferential direction of the rotating shaft; the third driving member is fixedly connected with the box body, and the driving end of the third driving member is connected with the rotating shaft.

[0010] Specifically, the crushing mechanism further comprises a guide partition plate; the guide partition plate is arranged between the screening mechanism and the crushing member and is arranged in an inclined manner; one end of the guide partition plate and the inner wall of the box body form a discharging port, and the discharging port is formed on the side away from the discharging port.

[0011] Specifically, the screening mechanism comprises a screening plate, a sliding rod, a fourth driving member and a linkage assembly; the inner wall of the box body forms a guide groove extending in the vertical direction; one end of the sliding rod is connected with the screening plate, and the other end is located in the guide groove; the linkage assembly comprises a first cam, a connecting rod and a second cam; the first cam and the second cam are oppositely arranged at the two ends of the connecting rod, and one end of the connecting rod is connected with the fourth driving member; the screening plate is provided with a plurality of screen holes with the same diameter, and the bottom surface of the screening plate is always in contact with the first cam and the second cam.

[0012] Further, the linkage assemblies are arranged at intervals along the length direction of the screening plate, and the horizontal height of the linkage assembly close to the discharge port is lower than that of the linkage assembly far from the discharge port, so that the screening plate is inclined to the discharge port.

[0013] Further, the screening mechanism further comprises a transmission assembly, the transmission assembly comprises a transmission wheel and a transmission member, the transmission wheel is a chain wheel, the transmission member is a chain, the chain wheel is in meshing connection with the chain, and the fourth driving member is connected with one of the chain wheels, and the other chain wheels are rotationally connected with the box body.

[0014] The lifting device comprises a lifting box, a connecting platform, an inclination driving assembly, a lifting driving assembly and a blocking assembly; the lifting driving assembly comprises a lifting driving member, a base, a guide screw and a connecting sleeve, the guide screw extends in the vertical direction, one end of the guide screw is rotationally connected with the base, the lifting driving member is located in the base, and the driving end of the lifting driving member is connected with the guide screw; the connecting sleeve is sleeved on the guide screw and is in threaded connection with the guide screw, the connecting platform is connected with the connecting sleeve, and the lifting box is arranged on the connecting platform; the inclination driving assembly extends in the vertical direction, one end of the inclination driving assembly is connected with the connecting platform, and the other end is rotationally connected with the outer wall of the lifting box; a rotating plate is formed on the side wall of the lifting box facing the grading device, the rotating plate can open or close the lifting box, so that the material in the lifting box enters the dropping bin; the blocking assembly comprises a blocking plate and a blocking drive, the blocking drive extends in the vertical direction, and the driving end of the blocking drive is connected with one end of the blocking plate, so that the blocking plate can open or close the discharge port.

[0015] Specifically, the compacting device is further provided, and the compacting device comprises a bearing box, a compacting drive and a pressing plate, the compacting drive is arranged in the bearing box, the driving end of the compacting drive extends out of the bearing box and is connected with the pressing plate, the bearing box is connected with the box body and is located at the tail of the carrying vehicle.

[0016] Compared with the prior art, the open-pit backfilling equipment has the following advantages:

[0017] The open-pit pit backfilling equipment provided by the utility model, which comprises a carrier vehicle, a grading device and a lifting device; the grading device is mounted on the carrier vehicle, and the grading device comprises a box body, a material dropping mechanism, a crushing mechanism and a screening mechanism; a material dropping bin, a crushing bin, a screening bin and a storage bin are sequentially formed in the box body along a vertical direction; the material dropping mechanism is located in the material dropping bin and forms a material dropping opening, the material dropping opening is in communication with the crushing bin, the crushing mechanism is arranged in the crushing bin, the crushing bin is in communication with the screening bin, the screening mechanism is arranged in the screening bin, the screening bin is in communication with the storage bin, and a material outlet is formed on a side wall of the box body corresponding to the storage bin; a material discharging opening is formed on a side wall of the box body corresponding to the screening bin, a feeding end of the lifting device is capable of being positioned opposite to the material discharging opening, and a discharging end of the lifting device is in communication with the material dropping bin.

[0018] Therefore, by mounting the grading device on the carrier vehicle, the grading device can reach the required pit, and since the grading device comprises the box body, which is divided into the material dropping bin, the crushing bin, the screening bin and the storage bin, and the material dropping bin, the crushing bin, the screening bin and the storage bin are sequentially arranged along the vertical direction, the stone material can fall under the influence of gravity after entering the material dropping bin.

[0019] Since the crushing mechanism is located in the crushing bin, the stone material falling into the crushing bin can be crushed by the crushing mechanism, and the crushed stone material enters the screening bin and is screened by the screening mechanism, so that the stone material with the same particle size is leaked into the storage bin, and the stone material with a larger particle size is discharged from the material discharging opening.

[0020] Further, the lifting device is arranged corresponding to the material discharging opening, so that the stone material with a larger particle size discharged from the material discharging opening can be lifted by the lifting device, and then discharged from the discharging end of the lifting device into the material dropping bin, so as to be crushed by the crushing bin and screened by the screening bin again to complete the grading of the stone material.

[0021] Finally, the stone material with a small particle size passing through the screening mechanism enters the storage bin, and when backfilling is required, the material outlet of the storage bin is opened to discharge the stone material. The particle size of the screened stone material can be basically consistent, so that the distribution of the backfilling material is more uniform. In addition, the carrier vehicle can also realize the backfilling mode of walking and discharging at the same time, so that the material is not excessively accumulated in the pit, and the backfilling is more uniform. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the specific embodiments of the utility model or the technical solutions in the prior art, the following will briefly introduce the drawings needed to be used in the specific embodiments or the prior art description. Obviously, the drawings described below are some embodiments of the utility model, and other drawings can also be obtained by those skilled in the art without creative labor on the basis of these drawings.

[0023] Figure 1 The whole structure schematic diagram of the open-pit mine pit backfill equipment is provided for the embodiment of the utility model;

[0024] Figure 2 The internal structure schematic diagram of the grading device in the open-pit mine pit backfill equipment is provided for the embodiment of the utility model;

[0025] Figure 3 The structure schematic diagram of the screening mechanism in the open-pit mine pit backfill equipment is provided for the embodiment of the utility model;

[0026] Figure 4 The structure schematic diagram of the falling mechanism and the crushing mechanism in the open-pit mine pit backfill equipment is provided for the embodiment of the utility model;

[0027] Figure 5 The appearance schematic diagram of the grading device in the open-pit mine pit backfill equipment is provided for the embodiment of the utility model;

[0028] Figure 6 The internal structure schematic diagram of the lifting device in the open-pit mine pit backfill equipment is provided for the embodiment of the utility model;

[0029] Figure 7 The structure schematic diagram of the compacting device in the open-pit mine pit backfill equipment is provided for the embodiment of the utility model.

[0030] In the figure: 1-carrier vehicle;2-box;201-falling bin;2011-first mounting table;2012-second mounting table;202-crushing bin;203-screening bin;2031-discharge port;2032-guiding groove;204-storage bin;2041-discharge port;3-first baffle;301-fixed section;302-overturning section;4-second baffle;5-first driving member;6-second driving member;7-third driving member;8-rotating shaft;9-crushing block;10-guiding partition;11-screening plate;1101-screening hole;12-first cam;13-connecting rod;14-second cam;15-sprocket;16-chain;17-lifting box;18-connecting platform;19-guiding screw;20-base;21-inclined driving assembly;22-blocking plate;23-protection box;24-bearing box;25-compact driving;26-pressing plate;27-connecting sleeve. DETAILED DESCRIPTION

[0031] To make the objects, technical solutions and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings of the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative work belong to the scope of protection of the present application.

[0032] In the description of the embodiments of the present application, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship commonly placed when the utility model product is used, and are only for the convenience of describing the utility model 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 utility model. In addition, the terms "first", "second", "third" and the like are only used for differentiation in description and cannot be understood as indicating or implying relative importance.

[0033] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0034] In the description of the embodiments of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "arrangement", "installation", "communication", "connection" should be understood broadly, for example, can be fixedly connected, or can be detachably connected, or integrally connected; can be mechanically connected, or can be electrically connected; can be directly connected, or can be indirectly connected through an intermediate medium, or can be the communication inside two elements. For those skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0035] As used herein, the term "and / or" includes any one of the listed related items and any combination of any two or more of the listed items.

[0036] For ease of description, spatially relative terms such as "on", "upper", "lower", "above", and "below" can be used herein for the purpose of describing the orientation of one element relative to another element as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures.

[0037] The terminology used herein is for the purpose of describing various examples only and is not intended to be limiting of the disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises", "comprising", "includes", "including" and "has", "having" are inclusive and allow for elements, numerals, components, members, steps, or groups thereof not to be present. The terms "comprise", "comprising", "include", "including" and "has", "having" are inclusive and allow for elements, numerals, components, members, steps, or groups thereof not to be present.

[0038] Variations in shapes that are shown in the drawings can occur as a result of manufacturing processes and / or tolerances. Thus, the examples described herein are not limited to the precise shapes shown in the drawings, but include variations in shapes that occur as a result of manufacturing processes and / or tolerances.

[0039] Features of the examples described herein can be combined with one another in a variety of ways. Furthermore, although the examples described herein have a variety of configurations, other configurations are possible as will be apparent to those of ordinary skill in the art upon reading the disclosure. Additionally, the technical solutions among various embodiments can be combined with each other, but it must be based on the fact that a person of ordinary skill in the art can realize the combination, and when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor is it within the scope of protection required by the present application.

[0040] As shown in the Figures 1-7 The utility model provides a kind of open pit backfilling equipment, including carrier 1, grading device and hoisting device;Grading device is carried on carrier 1, and grading device includes box 2, blanking mechanism, crushing mechanism and screening mechanism;Box 2 is sequentially formed with blanking bin 201, crushing bin 202, screening bin 203 and storage bin 204 along vertical direction;Blanking mechanism is located in blanking bin 201, and is formed with blanking port, blanking port is communicated with crushing bin 202, crushing mechanism is arranged in crushing bin 202, and crushing bin 202 is communicated with screening bin 203, screening mechanism is arranged in screening bin 203, and screening bin 203 is communicated with storage bin 204, and discharge port 2041 is formed on the side wall of box 2 corresponding to storage bin 204;Discharge port 2031 is formed on the side wall of box 2 corresponding to screening bin 203, and the feed end of hoisting device can be opposite to discharge port 2031, and the discharge end of hoisting device is communicated with blanking bin 201.

[0041] The open-pit pit backfilling equipment has the following advantages relative to the prior art:

[0042] The open-pit pit backfilling equipment provided by the utility model has the advantages that the grading device is arranged on the carrier vehicle 1, so that the grading device can reach the required pit to be backfilled, the grading device comprises the box body 2, the box body 2 is divided into the falling bin 201, the crushing bin 202, the screening bin 203 and the storage bin 204, and the falling bin 201, the crushing bin 202, the screening bin 203 and the storage bin 204 are sequentially arranged along the vertical direction, and therefore, the stone can fall under the influence of gravity after entering the falling bin 201.

[0043] The crushing mechanism is arranged in the crushing bin 202, so that the stone can be crushed by the crushing device after falling into the crushing bin 202, the crushed stone enters the screening bin 203, the screening mechanism is used for screening, the stone with the same particle size is leaked into the storage bin 204, and the stone with a large particle size is discharged from the discharge port 2031.

[0044] The lifting device is arranged at the discharge port 2031, so that the stone with a large particle size discharged from the discharge port 2031 can be lifted by the lifting device, and then the stone is unloaded from the unloading end of the lifting device into the falling bin 201, and the stone is crushed by the crushing bin 202 and screened by the screening bin 203 to complete the grading of the stone.

[0045] The stone with a small particle size that passes through the screening mechanism enters the storage bin 204, the discharge port 2041 of the storage bin 204 is opened when backfilling is required, and the stone is discharged. The particle size of the screened stone can be basically consistent, so that the distribution of the backfilling material is more uniform. In addition, the carrier vehicle 1 can also realize the backfilling mode of walking and unloading at the same time, so that the material is not excessively accumulated in the pit, and the backfilling is more uniform.

[0046] It should be noted that the discharge port 2041 can be provided with two discharge ports, and the two discharge ports are formed on the two sides of the box body 2, so that the carrier vehicle 1 can realize the discharge of the material in any direction.

[0047] Preferably, the box body 2 is provided with a discharge baffle at the position corresponding to the discharge port 2041, and further preferably, the discharge baffle can directly serve as part of the box body 2, the top end of the discharge baffle is rotationally connected with the box body 2, the bottom end is attached to the box body 2, the discharge baffle is supported and opened and closed by the telescopic structure such as an oil cylinder arranged in the box body 2, and the discharge port 2041 is opened and closed.

[0048] It can be understood that the use of the telescopic control of the discharge baffle can ensure the tightness of the closing and the stability of the opening, thereby ensuring the stability of the stone unloading and the carrying.

[0049] Optionally, as shown in Figure 2 In combination Figure 4 The blanking mechanism in the application includes a baffle assembly and a first driving assembly; the baffle assembly includes a first baffle 3 and a second baffle 4, and the first driving assembly includes a first driving member 5 and a second driving member 6; the first baffle 3 and the second baffle 4 are oppositely arranged, the positioning end of the first driving member 5 is rotationally connected with the inner wall of the box body 2, and the other end is rotationally connected with the first baffle 3; the positioning end of the second driving member 6 is rotationally connected with the inner wall of the box body 2, and the other end is rotationally connected with the second baffle 4, so that the first baffle 3 and the second baffle 4 can rotate relative to the inner wall of the box body 2 to open the blanking bin 201.

[0050] The first driving member 5 and the second driving member 6 in the application are both air cylinders or oil cylinders, preferably oil cylinders, which can provide more stable support force and thrust to realize the rotation of the first baffle 3 and the second baffle 4 relative to the inner wall of the box body 2.

[0051] It can be understood that in the embodiment, the positioning end of the first driving member 5 and the positioning end of the second driving member 6 are both rotationally connected with the inner wall of the box body 2, and the driving end is rotationally connected with the first baffle 3 and the second baffle 4, thereby forming a double-leaf door structure; when the first driving member 5 and the second driving member 6 are extended, the first baffle 3 and the second baffle 4 can be pushed to lift, so that the double-leaf door structure is closed, thereby preventing the stone from falling into the crushing bin 202; when crushing operation is needed, the first driving member 5 and the second driving member 6 can be controlled to retract, so that the first baffle 3 and the second baffle 4 are synchronously opened or opened on one side, thereby realizing the falling of the stone.

[0052] Optionally, as shown in Figure 4 The positioning end of the first driving member 5 and the positioning end of the second driving member 6 are both rotationally connected with the inner wall of the box body 2, and the driving end is rotationally connected with the first baffle 3 and the second baffle 4, thereby forming a double-leaf door structure; when the first driving member 5 and the second driving member 6 are extended, the first baffle 3 and the second baffle 4 can be pushed to lift, so that the double-leaf door structure is closed, thereby preventing the stone from falling into the crushing bin 202; when crushing operation is needed, the first driving member 5 and the second driving member 6 can be controlled to retract, so that the first baffle 3 and the second baffle 4 are synchronously opened or opened on one side, thereby realizing the falling of the stone.

[0053] The first mounting table 2011 and the second mounting table 2012 can provide more stable mounting positions for the first driving member 5 and the second driving member 6, thereby ensuring the stable opening and closing of the first baffle 3 and the second baffle 4.

[0054] It should be noted that a support rod extending in the vertical direction can also be installed on the first mounting table 2011 and the second mounting table 2012, and the support rod is connected with the positioning end of the oil cylinder, so that the inclination angle of the oil cylinder is kept fixed, thereby forming a triangular support structure of the oil cylinder, the support rod and the first mounting table 2011 or the second mounting table 2012, and ensuring the stability of the support of the first baffle 3 and the second baffle 4 when the oil cylinder is stretched.

[0055] Optionally, as shown in Figure 2 Combined with Figure 4 It is shown that the crushing mechanism in the application includes a plurality of crushing members and a third driving member 7 corresponding to each crushing member; each crushing member includes a rotating shaft 8 and a plurality of crushing blocks 9, the plurality of crushing blocks 9 are arranged in the axial direction of the rotating shaft 8 and distributed in the circumferential direction of the rotating shaft 8; the third driving member 7 is fixedly connected with the box 2, and the driving end of the third driving member 7 is connected with the rotating shaft 8.

[0056] The third driving member 7 in the application is a driving motor, which can drive the rotating shaft 8 to rotate, so that the crushing blocks 9 arranged on the rotating shaft 8 rotate. It can be understood that, since the crushing members in the application are a plurality of parallel arrangements, the crushing blocks 9 on the adjacent rotating shafts 8 can form a crushing space, so that the stone entering the crushing space can be crushed by the crushing blocks 9, and larger stones can always be crushed on the crushing members until the particle size is reduced.

[0057] It should be noted that the positions of the crushing blocks 9 on each rotating shaft 8 in the application can be different, thereby forming staggered crushing blocks 9, thereby improving the distribution density of the crushing blocks 9 and ensuring the crushing effect.

[0058] Optionally, as shown in Figure 2 The crushing mechanism in the application further includes a guide partition plate 10; the guide partition plate 10 is arranged between the screening mechanism and the crushing member, and is arranged obliquely, one end of the guide partition plate 10 and the inner wall of the box 2 form a discharging port, and the discharging port is formed on the side away from the discharge port 2031.

[0059] Since the guide partition plate 10 in the application is arranged obliquely, the stones falling on the guide partition plate 10 gradually gather at the lower part, and the end of the guide partition plate 10 away from the discharge port 2031 in the application is the lowest part, and forms a discharging port with the inner wall of the box 2, so that the stones falling can reach the end of the screening mechanism away from the discharge port 2031, and then the screening and falling of the stones are completed through the process of the stones gradually moving to the discharge port 2031.

[0060] Optionally, as shown in Figure 2 Combined with Figure 3As shown, the screening mechanism in the application comprises a screening plate 11, a sliding rod, a fourth driving member and a linkage assembly; a guide groove 2032 extending in the vertical direction is formed on the inner wall of the box 2, one end of the sliding rod is connected with the screening plate 11, and the other end is located in the guide groove 2032; the linkage assembly comprises a first cam 12, a connecting rod 13 and a second cam 14, the first cam 12 and the second cam 14 are oppositely arranged at two ends of the connecting rod 13, and one end of the connecting rod 13 is connected with the fourth driving member; a plurality of sieve holes 1101 with the same diameter are distributed on the screening plate 11, and the bottom surface of the screening plate 11 is always in contact with the first cam 12 and the second cam 14.

[0061] The first cam 12 and the second cam 14 arranged at the bottom of the screening plate 11 can drive the screening plate 11 to produce up-and-down shaking motion when the first cam 12 and the second cam 14 rotate, so as to vibrate the stones on the screening plate 11 and realize the screening operation.

[0062] The guide groove 2032 extending in the vertical direction is further formed on the inner wall of the box 2, and one end of the sliding rod connected with the screening plate 11 is located in the guide groove 2032, so as to ensure that the screening plate 11 only vibrates in the vertical direction, realizes the vibration of the stones, and further completes the screening action.

[0063] The fourth driving member in the application is a motor, which can drive the connecting rod 13 to rotate, so as to realize the rotation of the first cam 12 and the second cam 14 at two ends of the connecting rod 13.

[0064] Optionally, the linkage assembly in the application is a plurality of linkage assemblies, the plurality of linkage assemblies are arranged at intervals along the length direction of the screening plate 11, and the horizontal height of the linkage assembly close to the discharge port 2031 is lower than the horizontal height of the linkage assembly far away from the discharge port 2031, so as to make the screening plate 11 tilt towards the discharge port 2031.

[0065] The application can make the screening plate 11 vibrate stably by setting multiple linkage assemblies, i.e. the first cam 12 and the second cam 14 have multiple contacts in the length direction of the screening plate 11. By making the horizontal height of the linkage assembly close to the discharge port 2031 lower than the horizontal height of the linkage assembly away from the discharge port 2031, the screening plate 11 can be arranged in an inclined manner, and the inclination direction is opposite to the guide baffle. In actual operation, the stone falling through the guide baffle falls on the highest position of the screening plate 11, and under the action of the gravity of the stone and the continuous vibration of the screening plate 11, the stone continuously moves to the discharge port 2031. In this process, the small-diameter stone falls into the lower storage bin 204, and the large-diameter stone that cannot pass through the screen hole 1101 gradually reaches the discharge port 2031 and is discharged into the lifting device, and then is rotated again into the falling bin 201 and enters the crushing bin 202 for crushing until the stone can pass through the screen hole 1101.

[0066] Optionally, as Figure 2 Combined with Figure 3 As shown in the drawings, the screening mechanism in the application further includes a transmission assembly, the transmission assembly includes a transmission wheel and a transmission member, the transmission wheel is a sprocket 15, and the transmission member is a chain 16. The sprocket 15 is in meshing connection with the chain 16, and the fourth driving member is connected with one of the sprockets 15. The other sprockets 15 are rotationally connected with the box body 2.

[0067] The transmission mode of the sprocket 15 and the chain 16 can provide stable power and torque, thereby ensuring the stable operation of the overall linkage assembly.

[0068] It can be understood that the transmission wheel in the application has at least two, which are located at both ends of the chain 16 to tension the chain 16. A plurality of sprockets 15 can be further arranged between the transmission wheels at both ends, and the connecting rod 13, the first cam 12 and the second cam 14 described above can be further connected on each sprocket 15, thereby ensuring the vibration frequency of the screening plate 11. Correspondingly, to realize the inclination of the screening plate 11, the sprockets 15 at both ends can be arranged high and low, and the sprockets 15 in the middle can be gradually arranged downward according to the specific number of heights.

[0069] It should be noted here that the fourth driving member in the application is a motor, which is located in the box body 2. To avoid the stone entering the area of the linkage assembly and the fourth driving member, a protective cover can be arranged outside the fourth driving member and the linkage assembly, and only the connecting rod 13 extends into the protective cover to connect with the corresponding sprocket 15, thereby realizing the stable operation of the overall equipment.

[0070] Optionally, as Figure 1 Combined with Figure 6 And Figure 7The ascending device comprises an ascending box 17, a connecting platform 18, an inclined driving assembly 21, a lifting driving assembly and a blocking assembly. The lifting driving assembly comprises a lifting driving member, a base 20, a guide screw 19 and a connecting sleeve 27. The guide screw 19 extends in the vertical direction, and one end of the guide screw 19 is rotationally connected with the base 20. The lifting driving member is located in the base 20, and a driving end of the lifting driving member is connected with the guide screw 19. The connecting sleeve 27 is sleeved on the guide screw 19 and is threadedly connected with the guide screw 19. The connecting platform 18 is connected with the connecting sleeve 27, and the ascending box 17 is arranged on the connecting platform 18. The inclined driving assembly 21 extends in the vertical direction, and one end of the inclined driving assembly 21 is connected with the connecting platform 18, and the other end is rotationally connected with an outer wall of the ascending box 17. A turning plate is formed on a side wall of the ascending box 17 facing the grading device. The turning plate can open or close the ascending box 17, so that the materials in the ascending box 17 enter the discharging bin 201. The blocking assembly comprises a blocking plate 22 and a blocking driving. The blocking driving extends in the vertical direction, and a driving end of the blocking driving is connected with one end of the blocking plate 22, so that the blocking plate 22 can open or close the discharging port 2031.

[0071] The guide screw 19 in the application is four, and is located at four corners of the rectangular ascending box 17. Correspondingly, the connecting platform 18 supporting the ascending box 17 is rectangular. The connecting sleeve 27 corresponds to the number of the guide screw 19, and is welded with the connecting platform 18. The four connecting sleeves 27 operate synchronously, so as to drive the connecting platform 18 to rise or fall, and further drive the ascending box 17 to rise or fall.

[0072] In the initial stage, the connecting sleeve 27 is located at the lowest position of the guide screw 19, so that the ascending box 17 is located below the discharging port 2031. The top of the ascending box 17 in the application is open, so as to receive the stones discharged from the discharging port 2031.

[0073] Correspondingly, as shown in Figure 6 , the discharging port 2031 in the application is externally provided with the blocking plate 22. When the ascending box 17 carrying the materials reaches the maximum value, the blocking plate 22 can be driven by the blocking driving to rise, so as to close the discharging port 2031, and realize the stop of discharging.

[0074] The photoelectric sensor can be arranged at a position close to the top in the ascending box 17. When the stones reach the position, the photoelectric sensor is blocked, so as to send a signal to the general controller of the carrier vehicle 1, and start the blocking driving. The blocking driving in the application is a hydraulic cylinder. The blocking plate 22 is driven to rise by the extension of the blocking driving, so as to close the discharging port 2031.

[0075] After the discharge port 2031 is completely closed, the lifting driving member operates. The lifting driving member in the application is a motor, which can drive the screw rod to rotate, so as to realize the lifting movement of the connecting sleeve 27 on the screw rod. When the connecting sleeve 27 rises synchronously, the lifting box 17 can be lifted.

[0076] As shown in Figure 1 , the outer part of the whole lifting device in the application is provided with a protection box 23, which can cover the guide screw rod 19 and the lifting box 17 and other structures inside, so as to ensure the safety of each structure, and also can avoid the problem of stone scattering in the running process to a certain extent.

[0077] The protection box 23 in the application is higher than the grading device, as shown in Figure 1 , an open top of the protection box 23 is formed beyond the position of the box body 2, so as to provide space for the opening of the rotating plate.

[0078] Preferably, the top of the protection box 23 in the application is provided with a limiting seat corresponding to the position of the four guide screw rods 19, and a bearing is arranged in the limiting seat to realize the rotary connection between the guide screw rod 19 and the limiting seat. In the application, the guide screw rod 19 does not reach the top of the protection box 23, that is, the end of the guide screw rod 19 has a certain distance from the inner wall of the top of the protection box 23. Since the lifting box 17 has a certain height, when the connecting sleeve 27 reaches the limit position of the guide screw rod 19, the top opening of the lifting box 17 has a certain distance from the top of the protection box 23, and the distance satisfies the inclination of the lifting box 17.

[0079] At the same time, the rotating plate of the lifting box 17 is aligned with the opening of the protection box 23. When unloading is needed, the rotating plate is opened, the inclination driving assembly 21 is started, and the end of the lifting box 17 away from the rotating plate is lifted upward, so as to make the lifting box 17 incline to the direction of the box body 2. When the rotating plate is opened, the stone can directly slide into the discharging bin 201, so as to complete the re-crushing and screening of the large stone.

[0080] It should be noted here that the opening of the rotating plate in the application can also use oil cylinders arranged on the outer walls on both sides of the lifting box 17, so as to realize the opening and closing of the rotating plate by the extension and retraction of the oil cylinder.

[0081] The inclination driving assembly 21 in the application includes a positioning seat and an inclination driving member. The inclination driving member is an oil cylinder. The positioning seat is arranged on the connecting platform 18. The positioning end of the inclination driving member is rotationally connected with the positioning seat, and the driving end is rotationally connected with the outer wall of the lifting box 17, so as to realize the inclination action of the lifting box 17.

[0082] Optionally, as shown in Figure 7As shown, the open-pit pit backfilling equipment provided by the application further comprises a compaction device; the compaction device comprises a bearing box 24, a compaction drive 25 and a pressing plate 26, the compaction drive 25 is arranged in the bearing box 24, and the driving end of the compaction drive 25 extends out of the bearing box 24 and is connected with the pressing plate 26; the bearing box 24 is connected with the box body 2 and is located at the tail of the carrier vehicle 1.

[0083] The bearing box 24 can protect the safety of the compaction drive 25, and the compaction drive 25 in the application can adopt an oil cylinder or air cylinder structure to realize the up-and-down movement of the pressing plate 26 in the vertical direction. In actual operation, after the material is filled into the pit, the compaction device can be started to make the multiple pressing plates 26 move up and down alternately, so that the contact between the stone and the sand soil can be made more compact to a certain extent, the problem of loosening in the later period can be avoided, and the backfilling effect can be ensured.

[0084] It should be noted here that a push shovel structure can be additionally arranged in front of the head of the carrier vehicle 1 in the application, after the filling operation is completed, the driver drives the carrier vehicle 1 to advance, first uses the push shovel structure to level the backfilling area, and then uses the compaction device of the carrier vehicle to compact, so that the flatness and uniformity of backfilling can be further ensured.

[0085] Correspondingly, since the discharge outlets 2041 in the application are located on both sides of the carrier vehicle 1, during the leveling and compaction operation, when the driver finds a position where the material is insufficient, the discharge outlet 2041 can be directly started to unload a part of the stone in the storage bin 204, so that the operation mode of leveling and compaction on one side while supplementing backfilling on the other side can be realized, and the flatness and uniformity of the pit can be further realized.

[0086] It should be further noted here that a sandwich layer is arranged between the bottom of the storage bin 204 and the bottom of the box body 2 in the application, an oil cylinder is arranged in the sandwich layer corresponding to the position of the discharge outlet 2041 on each side, in the initial stage, the oil cylinders on both sides are in the contracted state, so that the bottom of the storage bin 204 remains horizontal, and when it is necessary to unload the material to one side, the oil cylinder arranged on the other side can be extended, so that the bottom of the storage bin 204 is inclined, and the automatic unloading of the stone can be realized.

[0087] It can be understood that the open-pit pit backfilling equipment provided by the application has high integration, and since the grading device, the lifting device and the compaction device are combined with the carrier vehicle 1, the unified operation of the refined backfilling material, backfilling, leveling and compaction and supplementing backfilling can be realized in cooperation with the carrier vehicle 1, the flexibility is high, and the backfilling effect is good.

[0088] The above merely describes the preferred embodiments of the application and is not used to limit the application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. An open pit mine pit backfilling apparatus, characterized by, The device comprises a carrier, a grading device and a lifting device; The grading device is mounted on the carrier, and comprises a box, a material dropping mechanism, a crushing mechanism and a screening mechanism; The box is sequentially provided with a material dropping bin, a crushing bin, a screening bin and a storage bin in the vertical direction; The material dropping mechanism is located in the material dropping bin and is provided with a dropping port, the dropping port is communicated with the crushing bin, the crushing mechanism is arranged in the crushing bin, the crushing bin is communicated with the screening bin, the screening mechanism is arranged in the screening bin, and the screening bin is communicated with the storage bin, and the storage bin is provided with a discharge port on the side wall of the box; The screening bin is provided with a discharge port on the side wall of the box, the feeding end of the lifting device is capable of being positioned opposite to the discharge port, and the discharging end of the lifting device is communicated with the material dropping bin.

2. The open pit backfilling apparatus according to claim 1, characterized in that, The material dropping mechanism comprises a baffle assembly and a first driving assembly; The baffle assembly comprises a first baffle and a second baffle, and the first driving assembly comprises a first driving member and a second driving member; The first baffle and the second baffle are oppositely arranged, the positioning end of the first driving member is rotationally connected with the inner wall of the box, the other end is rotationally connected with the first baffle, the positioning end of the second driving member is rotationally connected with the inner wall of the box, and the other end is rotationally connected with the second baffle, so that the first baffle and the second baffle are capable of rotating relative to the box and opening the material dropping bin.

3. A pit backfilling apparatus according to claim 2, characterised in that, The box is provided with a first mounting table corresponding to the position of the positioning end of the first driving member and a second mounting table corresponding to the position of the positioning end of the second driving member, the first driving member is rotationally connected with the first mounting table, and the second driving member is rotationally connected with the second mounting table; The first baffle and the second baffle each comprise a fixed segment and a turnover segment, the driving end of the first driving member is rotationally connected with the turnover segment of the first baffle, and the driving end of the second driving member is rotationally connected with the turnover segment of the second baffle.

4. The pit backfilling apparatus according to claim 1, characterized in that, The crushing mechanism comprises a plurality of crushing members and a third driving member corresponding to each of the crushing members; Each of the crushing members comprises a rotating shaft and a plurality of crushing blocks, the crushing blocks are arranged in the axial direction of the rotating shaft and distributed in the circumferential direction of the rotating shaft; The third driving member is fixedly connected with the box, and the driving end of the third driving member is connected with the rotating shaft.

5. A pit backfilling apparatus according to claim 4, characterised in that, The crushing mechanism further comprises a guide partition plate; The guide partition plate is arranged between the screening mechanism and the crushing members and is arranged in an inclined manner, one end of the guide partition plate and the inner wall of the box form a discharging port, and the discharging port is formed on the side away from the discharge port.

6. The pit backfilling apparatus according to claim 1, characterized in that, The screening mechanism comprises a screening plate, a sliding rod, a fourth driving member and a linkage assembly; The inner wall of the box is provided with a guide groove extending in the vertical direction, one end of the sliding rod is connected with the screening plate, and the other end is located in the guide groove; The linkage assembly comprises a first cam, a connecting rod and a second cam, the first cam and the second cam are oppositely arranged at two ends of the connecting rod, and one end of the connecting rod is connected with the fourth driving member; The screening plate is provided with a plurality of screen holes with the same diameter, and the bottom surface of the screening plate is always in contact with the first cam and the second cam.

7. A pit backfilling apparatus according to claim 6, characterised in that, The linkage assemblies are arranged at intervals along the length direction of the screening plate, and the horizontal height of the linkage assembly close to the discharge port is lower than that of the linkage assembly far from the discharge port, so that the screening plate is inclined to the discharge port.

8. The pit backfilling apparatus according to claim 6, characterized in that, The screening mechanism further comprises a transmission assembly, the transmission assembly comprises a transmission wheel and a transmission member, the transmission wheel is a chain wheel, the transmission member is a chain, the chain wheel is in meshing connection with the chain, and the fourth driving member is connected with one of the chain wheels, and the other chain wheels are rotationally connected with the box.

9. The pit backfilling apparatus according to claim 1, characterized in that, The lifting device comprises a lifting box, a connecting platform, an inclination driving assembly, a lifting driving assembly and a blocking assembly; The lifting driving assembly comprises a lifting driving member, a base, a guide screw and a connecting sleeve, the guide screw extends in the vertical direction, one end of the guide screw is rotationally connected with the base, the lifting driving member is located in the base, and the driving end of the lifting driving member is connected with the guide screw; The connecting sleeve is sleeved on the guide screw and is in threaded connection with the guide screw, the connecting platform is connected with the connecting sleeve, and the lifting box is arranged on the connecting platform; The inclination driving assembly extends in the vertical direction, one end of the inclination driving assembly is connected with the connecting platform, and the other end is rotationally connected with the outer wall of the lifting box; A rotating plate is formed on the side wall of the lifting box facing the grading device, the rotating plate can open or close the lifting box, so that the materials in the lifting box enter the dropping bin; The blocking assembly comprises a blocking plate and a blocking driving, the blocking driving extends in the vertical direction, and the driving end of the blocking driving is connected with one end of the blocking plate, so that the blocking plate can open or close the discharge port.

10. The pit backfilling apparatus according to claim 1, characterized in that, Further comprising a compacting device; The compacting device comprises a bearing box, a compacting driving and a pressing plate, the compacting driving is arranged in the bearing box, and the driving end of the compacting driving extends out of the bearing box and is connected with the pressing plate; The bearing box is connected with the box and is located at the tail of the carrying vehicle.

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