Bulk material crushing device for strip mine and working method of bulk material crushing device

Abstract

The invention discloses a strip mine bulk material crushing device and a working method thereof. The device comprises a crushing station, and the input end and the output end of the crushing station are provided with a belt conveyor and a crusher body correspondingly; the multiple second-stage telescopic modules are symmetrically distributed on the two sides of the crushing station; and the transverse sliding module is erected at the top ends of the multiple second-stage telescopic modules and fixedly connected with the output ends of the second-stage telescopic modules through bolts, and the transverse sliding module comprises a height detection device and a transverse positioning device. According to the invention, multi-stage crushing is carried out on materials from multiple dimensions through the multiple groups of crushing modules; the device has degrees of freedom in three directions and can crush large materials at different positions and heights, so that the crushing efficiency of the large materials is improved, a sensor is adopted to analyze the matching relation between the actually measured material height and the preset height range, large coal rocks are further crushed conveniently, and the phenomenon that the large materials enter a crushing station to cause material blocking and blocking of the crushing station is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of material crushing, and particularly relates to a large-block material crushing device for open-pit mines. Background Art

[0002] The crushing station occupies a main transfer and crushing position in the semi-continuous coal mining system of open-pit mines. Whether the crushing station continuously crushes will directly affect the open-pit coal mining efficiency. During the actual production operation process, due to factors such as the fixed drilling position, row spacing, and hole spacing, large pieces of coal and rock are generated after drilling and blasting and cannot be normally crushed, and there is a phenomenon that large pieces of coal and rock enter the crushing station, resulting in the abnormal operation of the crushing station.

[0003] Currently, a crane is used to assist in crushing at the entrance of the crushing station. However, due to the moisture content in the coal blocks and being frozen solid, the mechanical arm of the crane has poor crushing effect when extended. This crushing method not only makes the workload of workers quite large but also poses great potential safety hazards to workers. Since operations such as hammering and chiseling above the crushing station will cause the structure of the crushing station to become loose, after each operation of removing large pieces, workers need to check the structure of the crushing station.

[0004] The above working method has a large manual labor intensity and low working efficiency, and cannot quickly identify and accurately position and break rocks for large pieces of coal and rock generated in general open-pit mines; during the crushing process, the crushing station is prone to jamming problems caused by the oversized volume of coal and rock, and it is necessary to stop work for cleaning and maintenance.

[0005] Therefore, it is very necessary to research and develop a large-block material crushing device for open-pit mines and its working method to solve the above problems. Summary of the Invention

[0006] The purpose of the present invention is to provide a large-block material crushing device for open-pit mines and its working method for the problems existing in the prior art, so as to solve the technical problems proposed in the background art.

[0007] To achieve the above purpose, the present invention provides the following technical solutions:

[0008] A large-block material crushing device for open-pit mines, comprising:

[0009] A crushing station, with a belt conveyor and a crusher body respectively arranged at its input end and output end;

[0010] A secondary telescopic module, with a plurality of them, symmetrically distributed on both sides of the crushing station;

[0011] The horizontal sliding module is installed on the tops of multiple secondary telescopic modules and is fixedly connected to the output ends of the secondary telescopic modules through bolts. The horizontal sliding module includes a height detection device and a horizontal positioning device. The height detection device is used to sense the height of the material accumulation in the crushing station, and the horizontal positioning device is used to sense the accumulation width of the material in the crushing station;

[0012] The longitudinal sliding module is slidably fitted on the horizontal sliding module;

[0013] The primary telescopic module is located above the crushing station and includes a cross beam;

[0014] The number of crushing modules is set to be multiple, and they are fixedly installed at the bottom of the cross beam and the longitudinal sliding module. The multiple crushing modules perform multi-stage crushing of the material from multiple dimensions. The crushing module includes a fixing plate. The bottom of the fixing plate is fixedly connected with a longitudinal beam. One side of the bottom end and the top end of the longitudinal beam are respectively hinged with a rocker and a telescopic oil cylinder, and the output end of the telescopic oil cylinder is hinged with the end of the telescopic oil cylinder away from the longitudinal beam. A swing rod is also movably arranged on the hinge shaft of the telescopic oil cylinder and the rocker. One side of the bottom of the longitudinal beam is fixedly connected with a support plate. A tool holder is arranged below the longitudinal beam, and a gap is reserved between the longitudinal beam and the tool holder. The bottom ends of the swing rod and the support plate are respectively hinged to both ends of the tool holder. The middle position at the bottom of the tool holder is hinged with a tool body;

[0015] The large-piece material filtering module is located between the crushing station and the primary telescopic module and is used for grading and filtering the material. The primary telescopic module and the large-piece material filtering module are slidably fitted.

[0016] Preferably, the secondary telescopic module includes two groups of secondary fixed sleeves fixed to the crushing station. A first telescopic sleeve is movably arranged inside the secondary fixed sleeve, and a second telescopic sleeve is slidably fitted to the top end inside the first telescopic sleeve. Two secondary lifting oil cylinders are parallelly distributed on one side of the secondary fixed sleeve, and both ends of the secondary lifting oil cylinder are respectively hinged to the secondary fixed sleeve and the second telescopic sleeve;

[0017] Both sides of the cross beam are fixedly connected with third telescopic sleeves through bolts, and a primary fixed sleeve is nested and slid at the bottom end of the third telescopic sleeve. Two primary lifting oil cylinders are parallelly distributed on one side of the third telescopic sleeve and the third telescopic sleeve. The bottom end and the output end of the primary lifting oil cylinder are respectively hinged to the primary fixed sleeve and the third telescopic sleeve.

[0018] Preferably, the large-piece material filtering module includes a grounding plate, the middle part of which is in an inverted arch shape. The surface of the grounding plate is provided with uniformly distributed leakage holes. Two second slide rails are fixedly connected to both sides of the grounding plate through bolts. A buffer pad is arranged on the upper surface of the grounding plate and outside the leakage holes. A crushing bar is also fixedly connected to the grounding plate through bolts, and the crushing bar corresponds to the tool body at the bottom of the cross beam one by one and is in extrusion fit.

[0019] Preferably, the crushing station is arranged in a funnel shape, the top of the crushing station is fixedly connected to the grounding plate, the third telescopic sleeve is slidably matched with the second slide rail through a primary fixing sleeve, and a first driving module is installed between the third telescopic sleeve and the second slide rail for driving the primary telescopic module to move axially along the second slide rail.

[0020] Preferably, the lateral sliding module includes a connecting frame, the connecting frame is fixedly connected to the second telescopic sleeve by bolts, a lateral sliding track is fixedly connected to the connecting frame by bolts, a moving frame is slidably matched with the connecting frame through the lateral sliding track, and a lateral limiting block is arranged at the end of the lateral sliding track for positioning the moving area of the moving frame;

[0021] Both the height detection device and the lateral positioning device are installed on the connecting frame.

[0022] Preferably, the longitudinal sliding module includes a connecting plate fixed to the moving frame, a longitudinal sliding track is fixedly connected to the connecting plate, the connecting plate is slidably matched with a longitudinal limiting block through the longitudinal sliding track, and the longitudinal limiting block is fixedly connected to the fixing plate at the bottom of the longitudinal sliding module by screws;

[0023] Longitudinal positioning devices are arranged on both sides of the connecting plate for sensing the length of the material.

[0024] Preferably, a positioning track is fixedly connected to the fixing plate located at the bottom of the cross beam, a plurality of limiting tracks corresponding to the positioning track one by one are installed at the bottom of the cross beam, and a second driving module is installed between the positioning track and the limiting track and between the longitudinal limiting block and the connecting plate for driving the crushing module to move axially along the positioning track.

[0025] The crushing device further includes a visual inspection module installed on the lateral sliding module, and the visual inspection module includes a camera monitor.

[0026] Preferably, the camera monitor is movably arranged in a fixed shell, the fixed shell is fixed on the connecting frame, first slide rails are fixedly connected to both sides inside the fixed shell, a lifting platform is slidably connected between the two first slide rails on both sides, the camera monitor is installed on the lifting platform by bolts, two protection baffles are movably arranged at the opening of the fixed shell, and a transmission mechanism is installed inside the fixed shell for opening the protection baffles and pushing the camera monitor out of the fixed shell.

[0027] The transmission mechanism includes two meshing incomplete gear paddles. A driving motor is fixedly connected to the outside of the fixed shell, and the output shaft of the driving motor is in transmission connection with one of the incomplete gear paddles. A long rod is fixedly connected to the rotating shaft of the incomplete gear paddle. Two short rods are symmetrically and movably arranged on both sides of the lifting platform, and the adjacent ends of the long rod and the short rod are hinged. At the middle position of the two protective baffles, symmetrically distributed first traction rods are hinged. At the adjacent ends of the two protective baffles, symmetrically distributed second traction rods are hinged, and the first traction rod and the second traction rod are parallelly distributed. The bottom end of the first traction rod is hinged to the fixed shell, and the bottom end of the second traction rod is fixedly connected to the axis of the incomplete gear paddle.

[0028] A working method of a large - block material crushing device for open - pit mines includes the following steps:

[0029] Step 1: Slide the first - stage telescopic module away to open the feeding port of the crushing station, feed large - block materials for crushing, and prepare to start the large - block material crushing work;

[0030] Step 2: After unloading, the first - stage telescopic module slides to the feeding port. The first - stage lifting oil cylinder retracts to drive the first - stage telescopic module downward. The cutting tool body of the first - stage telescopic module and the large - block material filtering module squeeze each other to preliminarily crush the large - block materials. The crushed materials reach the crushing port through the belt conveyor;

[0031] Step 3: When the material height detected by the height detection device at the crushing port exceeds the standard value, the second - stage lifting oil cylinder retracts to lower the second - stage telescopic module. The second driving module drives the lateral sliding module to slide left and right and drives the longitudinal sliding module to slide back and forth to accurately position the large - block materials;

[0032] Step 4: After accurately positioning the large - block materials, the telescopic oil cylinder expands and contracts to swing the rocker, swing rod, and cutting tool body, thereby pressing and hammering the large - block materials, cooperating with the bottom crusher body to crush them. At the same time, control the transmission mechanism to raise the lifting platform and open the protective baffle, and the camera monitor monitors the wear condition of the crushing device in real - time;

[0033] Step 5: After the entire crushing process is completed, the first - stage lifting oil cylinder extends to drive the first - stage telescopic module to rise, so that the first - stage telescopic module returns to its original position. The second - stage lifting oil cylinder extends to drive the second - stage telescopic module to rise, control the lateral sliding module to return to its original position, and the telescopic oil cylinder retracts to retract the crushing module, and the equipment returns to its initial state.

[0034] The technical effects and advantages of the present invention:

[0035] 1. By the mutual cooperation and extrusion of the tool body and the crushing bars, large pieces of materials are initially crushed at the feeding port. Through the pre-detection, vibration crushing, and tool reliability detection of large pieces of coal and rock entering the crushing port, the materials are crushed at multiple levels from multiple dimensions. Moreover, the device has three degrees of freedom in different directions, enabling the crushing of large pieces of materials at different positions and heights, thereby improving the crushing efficiency of large pieces of materials. The frame-separated structure can ensure that it does not affect the normal operation of the crushing station, solve the problem of blockage of the crushing station caused by oversized coal and rock volume, improve the crushing efficiency of oversized coal and rock, reduce the downtime and maintenance costs, and thus improve the production efficiency of the entire production line.

[0036] 2. The present invention can replace the manual crushing method, improve the crushing efficiency. Through the frame-separated structure, in cooperation with the automated coordination of the first drive module and the second drive module, it ensures that it does not affect the normal operation of the crushing station, avoids the blockage of the crusher by oversized coal and rock, affects the normal continuous transportation operation, realizes the continuity of material transportation, provides a technical basis for the mechanized crushing operation of large pieces of coal and rock, and provides a theoretical basis for the development of large-piece coal and rock crushing robots in open-pit coal mines. It reduces the labor intensity of workers. At the same time, the use of less or even unmanned rock-breaking operations can not only avoid workers working in a noisy and dusty environment, but also effectively improve the working environment of workers, which is of extremely important significance for ensuring the mining efficiency of open-pit mines and improving the intelligent mine technology system.

[0037] 3. Through the visual inspection module, the wear condition of the crushing device is monitored in real time to ensure the reliability and safety of the rock-breaking work. Moreover, the camera monitor is movably arranged in the fixed shell to prevent excessive dust during crushing, so that the camera monitor cannot clearly monitor the crushing situation, and the service life of the device is extended. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the embodiments. Obviously, the drawings described below are only some embodiments recorded in the present invention. For those of ordinary skill in the art, other drawings can also be obtained based on these drawings.

[0039] Figure 1 It is the overall structural schematic diagram of a large-piece material crushing device for open-pit mines provided by the present invention.

[0040] Figure 2 It is the secondary telescopic module diagram of a large-piece material crushing device for open-pit mines provided by the present invention.

[0041] Figure 3 It is the lateral sliding module diagram of a large-piece material crushing device for open-pit mines provided by the present invention.

[0042] Figure 4It is a longitudinal sliding module diagram of a large - block material crushing device for open - pit mines provided by the present invention.

[0043] Figure 5 It is a structural diagram of the crushing module of a large - block material crushing device for open - pit mines provided by the present invention.

[0044] Figure 6 It is a top - view diagram of the visual inspection module (stored state) of a large - block material crushing device for open - pit mines provided by the present invention.

[0045] Figure 7 It is a top - view diagram of the visual inspection module (deployed state) of a large - block material crushing device for open - pit mines provided by the present invention.

[0046] Figure 8 It is a three - dimensional diagram of the visual inspection module (stored state) of a large - block material crushing device for open - pit mines provided by the present invention.

[0047] Figure 9 It is a front - view diagram of the visual inspection module of a large - block material crushing device for open - pit mines provided by the present invention.

[0048] Figure 10 It is a diagram of the large - block material filtering module of a large - block material crushing device for open - pit mines provided by the present invention.

[0049] Figure 11 It is a diagram of the first - stage telescopic module of a large - block material crushing device for open - pit mines provided by the present invention.

[0050] In the figure:

[0051] 1. Second - stage telescopic module; 2. Transverse sliding module; 3. Longitudinal sliding module; 4. Crushing module; 5. Visual inspection module; 6. Crushing station; 7. Large - block material filtering module; 8. First - stage telescopic module;

[0052] 101. Second - stage fixed sleeve; 102. First telescopic sleeve; 103. Second telescopic sleeve; 104. Second - stage lifting oil cylinder;

[0053] 201. Connecting frame; 202. Transverse sliding track; 203. Height detection device; 204. Moving frame; 205. Transverse limit block; 206. Transverse positioning device;

[0054] 301. Connecting plate; 302. Longitudinal sliding track; 303. Longitudinal limit block; 304. Longitudinal positioning device;

[0055] 401. Positioning track; 402. Fixed plate; 403. Longitudinal beam; 404. Rocker; 405. Telescopic oil cylinder; 406. Swing rod; 407. Support plate; 408. Tool holder; 409. Tool body;

[0056] 501, Fixed housing; 502, First slide rail; 503, Slide block; 504, Protection baffle; 505, First towing rod; 506, Second towing rod; 507, Hinge plate; 508, Flap; 509, Lifting platform; 510, Camera monitor;

[0057] 701, Grounding plate; 702, Second slide rail; 703, Buffer pad; 704, Crushing bar;

[0058] 801, First - stage fixed sleeve; 802, Third telescopic sleeve; 803, Cross beam; 804, First - stage lifting oil cylinder. Detailed implementation manners

[0059] To make the structure and working mode of the present invention easier to understand, the present invention will be further described below in conjunction with the drawings and specific implementation manners. The drawings are described as follows:

[0060] Reference Figures 1-11 , the present invention provides a technical solution:

[0061] A large - block material crushing device for open - pit mines, comprising:

[0062] A crushing station 6, with a belt conveyor and a crusher body respectively arranged at its input end and output end, for inputting and crushing materials respectively;

[0063] The second - stage telescopic module 1, with a plurality of them arranged symmetrically on both sides of the crushing station 6;

[0064] The transverse sliding module 2 is mounted on the top of a plurality of second - stage telescopic modules 1 and is fixedly connected to the output end of the second - stage telescopic module 1 by bolts. The transverse sliding module 2 includes a height detection device 203 and a transverse positioning device 206. Among them, the height detection device 203 is used to sense the height of the material accumulation in the crushing station 6, and the transverse positioning device 206 is used to sense the width of the material accumulation in the crushing station 6;

[0065] The longitudinal sliding module 3 is slidably fitted on the transverse sliding module 2;

[0066] The first - stage telescopic module 8 is located above the crushing station 6, and it includes a cross beam 803;

[0067] The crushing modules 4, with the quantity set to multiple, are fixedly installed at the bottom of the cross beam 803 and the longitudinal sliding module 3. The multiple crushing modules 4 perform multi-stage crushing on the material from multiple dimensions. The crushing module 4 includes a fixed plate 402. A longitudinal beam 403 is fixedly connected to the bottom of the fixed plate 402. A rocker 404 and a telescopic oil cylinder 405 are respectively hinged to one side of the bottom end and the top end of the longitudinal beam 403. Moreover, the output end of the telescopic oil cylinder 405 is hinged to the end of the telescopic oil cylinder 405 away from the longitudinal beam 403. A swing rod 406 is also movably arranged on the hinge shaft of the telescopic oil cylinder 405 and the rocker 404. A support plate 407 is fixedly connected to one side of the bottom of the longitudinal beam 403. A tool holder 408 is arranged below the longitudinal beam 403, and a gap is reserved between the longitudinal beam 403 and the tool holder 408. The bottom ends of the swing rod 406 and the support plate 407 are respectively hinged to both ends of the tool holder 408. A tool body 409 is hinged at the middle position of the bottom of the tool holder 408;

[0068] The large-piece material filtering module 7 is located between the crushing station 6 and the first-stage telescopic module 8, and is used for grading and filtering the material. The first-stage telescopic module 8 is in sliding fit with the large-piece material filtering module 7.

[0069] Furthermore, in the above technical solution, the second-stage telescopic module 1 includes two groups of second-stage fixed sleeves 101 fixed to the crushing station 6. A first telescopic sleeve 102 is movably arranged inside the second-stage fixed sleeve 101. Moreover, a second telescopic sleeve 103 is in sliding fit with the top end inside the first telescopic sleeve 102. Second-stage lifting oil cylinders 104 are parallelly distributed on one side of the second-stage fixed sleeve 101. The two ends of the second-stage lifting oil cylinders 104 are respectively hinged to the second-stage fixed sleeve 101 and the second telescopic sleeve 103; the lifting of the longitudinal sliding module 3 and the crushing modules 4 installed thereon is realized through the telescoping of the second-stage lifting oil cylinders 104, ensuring that the best height for crushing large-piece materials can be reached;

[0070] Both sides of the cross beam 803 are fixedly connected by bolts with third telescopic sleeves 802. A first-stage fixed sleeve 801 is nested and slid at the bottom end of the third telescopic sleeve 802. First-stage lifting oil cylinders 804 are parallelly distributed on one side of the third telescopic sleeve 802. The bottom end and the output end of the first-stage lifting oil cylinder 804 are respectively hinged to the first-stage fixed sleeve 801 and the third telescopic sleeve 802. The first-stage telescopic module 8 and the multiple crushing modules 4 at its bottom cooperate to be able to perform the first crushing on the large-piece materials at the feed inlet.

[0071] Further, in the above technical solution, the large material filtering module 7 includes a grounding plate 701, the middle of which is in an inverted arch shape. The surface of the grounding plate 701 is provided with uniformly distributed leakage holes. Both sides of the grounding plate 701 are fixedly connected with second slide rails 702 through bolts. A buffer pad 703 is arranged on the upper surface of the grounding plate 701 and outside the leakage holes. A crushing bar 704 is also fixedly connected to the grounding plate 701 through bolts, and the crushing bar 704 corresponds to and is in extrusion fit with the cutter body 409 at the bottom of the cross beam 803 one by one. The large material filtering module 7 can relieve the harm brought to the crushing bar 704 by the impact force caused by the mutual extrusion of the crushing bar 704 and the cutter body 409 of the first-level telescopic module 8.

[0072] Further, in the above technical solution, the crushing station 6 is arranged in a funnel shape. The top of the crushing station 6 is fixedly connected with the grounding plate 701. The third telescopic sleeve 802 is in sliding fit with the second slide rail 702 through the first fixing sleeve 801, and a first driving module is installed between the third telescopic sleeve 802 and the second slide rail 702 for driving the first-level telescopic module 8 to move axially along the second slide rail 702.

[0073] Further, in the above technical solution, the transverse sliding module 2 includes a connecting frame 201. The connecting frame 201 is fixedly connected with the second telescopic sleeve 103 through bolts. A transverse sliding track 202 is fixedly connected to the connecting frame 201. A moving frame 204 is in sliding fit with the connecting frame 201 through the transverse sliding track 202, and a transverse limiting block 205 is arranged at the end of the transverse sliding track 202 for positioning the moving area of the moving frame 204;

[0074] The height detection device 203 and the transverse positioning device 206 are both installed on the connecting frame 201. The height detection device 203 and the transverse positioning device 206 are set as one or a combination of two or more of an ultrasonic ranging sensor, a laser ranging sensor, an infrared ranging sensor, and a radar sensor. It can accurately predict according to the stacking height and width of the materials in the crushing station 6, and better prepare for the crushing device to crush them.

[0075] Further, in the above technical solution, the longitudinal sliding module 3 includes a connecting plate 301 fixed to the moving frame 204. A longitudinal sliding track 302 is fixedly connected to the connecting plate 301. A longitudinal limiting block 303 is in sliding fit with the connecting plate 301 through the longitudinal sliding track 302, and the longitudinal limiting block 303 is fixedly connected to the fixing plate 402 at the bottom of the longitudinal sliding module 3 through screws;

[0076] Longitudinal positioning devices 304 are arranged on both sides of the connecting plate 301 for sensing the length of the materials. It can measure the length of the large materials and predict the maximum length that the crushing device can reach, ensuring the crushing accuracy.

[0077] Further, in the above technical solution, a positioning track 401 is fixedly connected to the fixing plate 402 at the bottom of the cross beam 803. A plurality of limiting rails corresponding to the positioning track 401 one by one are installed at the bottom of the cross beam 803. Second driving modules are installed between the positioning track 401 and the limiting rails, and between the longitudinal limiting block 303 and the connecting plate 301, for driving the crushing module 4 to move axially along the positioning track 401.

[0078] The first driving module and the second driving module can be set as cylinders, hydraulic cylinders or electric push rods, as well as the transmission modes of motors, gears and racks.

[0079] The crushing device further includes a visual inspection module 5 installed on the lateral sliding module 2. The visual inspection module 5 includes a camera monitor 510, which is used to monitor the wear condition of the crushing module 4 to ensure the reliability and safety of the rock breaking work.

[0080] Further, in the above technical solution, the camera monitor 510 is movably arranged in the fixed shell 501, and the fixed shell 501 is fixed on the connecting frame 201. First slide rails 502 are fixedly connected to both sides inside the fixed shell 501, and a lifting platform 509 is slidably connected between the two first slide rails 502. The camera monitor 510 is installed on the lifting platform 509 through bolts. Two protection baffle plates 504 are movably arranged at the opening of the fixed shell 501. A transmission mechanism is installed in the fixed shell 501 for opening the protection baffle plates 504 and pushing the camera monitor 510 out of the fixed shell 501, preventing excessive dust during crushing so that the camera monitor 510 cannot clearly monitor the crushing condition.

[0081] The transmission mechanism includes two mutually meshing incomplete gear paddles 508. A driving motor is fixedly connected to the outside of the fixed shell 501, and the output shaft of the driving motor is in transmission connection with one of the incomplete gear paddles 508. A long rod 507 is fixedly connected to the rotating shaft of the incomplete gear paddle 508. Two short rods 505 are symmetrically and movably arranged on both sides of the lifting platform 509, and the adjacent ends of the long rod 507 and the short rod 505 are hinged. First traction rods 503 are symmetrically distributed and hinged at the middle positions of the two protection baffle plates 504. Second traction rods 506 are symmetrically distributed and hinged at the adjacent ends of the two protection baffle plates 504, and the first traction rods 503 and the second traction rods 506 are parallelly distributed. The bottom end of the first traction rod 503 is hinged to the fixed shell 501, and the bottom end of the second traction rod 506 is fixedly connected to the axis of the incomplete gear paddle 508.

[0082] In this embodiment, the large block material filtering module 7 is fixed on the ground on both sides of the feeding port. The large block material crushing device at the feeding port is placed on the side far from the feeding port. The open-pit large block material crushing device at the crushing port is fixed on both sides of the crushing station 6. Its working method includes the following steps:

[0083] Step 1: Slide the first-level telescopic module 8 away to open the feeding port of the crushing station 6, feed large pieces of materials for crushing, and prepare to start the crushing work of large pieces of materials;

[0084] Step 2: After unloading is completed, the first-level telescopic module 8 slides to the feeding port. The first-level lifting oil cylinder 804 retracts to drive the first-level telescopic module 8 downward. The tool body 409 of the first-level telescopic module 8 and the large-piece material filtering module 7 are mutually extruded to initially crush the large pieces of materials. The crushed materials reach the crushing port through the belt conveyor;

[0085] Step 3: When the material height detection device 203 detects that the accumulated material height at the crushing port exceeds the standard value, the second-level lifting oil cylinder 104 retracts to lower the second-level telescopic module 1. The second driving module drives the lateral sliding module 2 to slide left and right and drives the longitudinal sliding module 3 to slide back and forth to achieve precise positioning of the large pieces of materials;

[0086] Step 4: After precisely positioning the large pieces of materials, the telescopic oil cylinder 405 makes telescopic movements to swing the rocker 404, the swing rod 406, and the tool body 409, thereby pressing and hammering the large pieces of materials, and cooperating with the bottom crusher body to crush them. At the same time, control the transmission mechanism to raise the lifting platform 509 and open the protection baffle 504. The camera monitor 510 monitors the wear condition of the crushing device in real time to ensure the reliability and safety of the rock-breaking work;

[0087] Step 5: After the entire crushing process is completed, the first-level lifting oil cylinder 804 extends to drive the first-level telescopic module 8 to rise, so that the first-level telescopic module 8 returns to its original position to avoid affecting the next crushing process; the second-level lifting oil cylinder 104 extends to drive the second-level telescopic module 1 to rise, control the lateral sliding module 2 to return to its original position, and the telescopic oil cylinder 405 retracts to retract the crushing module 4, and the equipment returns to the initial state; output the crushed materials and prepare to start the next crushing process.

[0088] Finally: The above are only the preferred embodiments of the present invention and are not used to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A bulk material crushing device for open-pit mines, characterized in that: include: A crushing station (6), the input end and the output end of which are respectively provided with a belt conveyor and a crusher body; The secondary telescopic modules (1) are provided in plurality and are symmetrically distributed on both sides of the crushing station (6); A transverse sliding module (2) is mounted on the top of the plurality of secondary telescopic modules (1) and is fixedly connected to the output end of the secondary telescopic module (1) by means of bolts, wherein the transverse sliding module (2) comprises a height detection device (203) and a transverse positioning device (206), wherein the height detection device (203) is used to sense the stacking height of materials in the crushing station (6), and the transverse positioning device (206) is used to sense the stacking width of materials in the crushing station (6); A longitudinal sliding module (3) slidingly engaged with the transverse sliding module (2); A first-stage telescopic module (8), located above the crushing station (6), includes a crossbeam (803); The crushing modules (4) are arranged in a plurality and fixedly mounted on the bottom of the cross beam (803) and the longitudinal sliding module (3). The plurality of crushing modules (4) crush the material in multiple stages from multiple dimensions. The crushing module (4) comprises a fixed plate (402). The bottom of the fixed plate (402) is fixedly connected to the longitudinal beam (403). The bottom end and the top end of the longitudinal beam (403) are respectively hinged with a rocker (404) and a telescopic cylinder (405). The output end of the telescopic cylinder (405) and the side of the telescopic cylinder (405) away from the longitudinal beam (403) are connected to each other. The ends of the telescopic oil cylinder (405) and the rocker (404) are hinged, a swing rod (406) is movably arranged on the hinge shaft of the telescopic oil cylinder (405) and the rocker (404), a support plate (407) is fixedly connected to the bottom of one side of the longitudinal beam (403), a tool holder (408) is arranged below the longitudinal beam (403), and a gap is reserved between the longitudinal beam (403) and the tool holder (408), the bottom ends of the swing rod (406) and the support plate (407) are respectively hinged to the two ends of the tool holder (408), and a tool body (409) is hinged at the middle position of the bottom of the tool holder (408); The bulk material filtering module (7) is located between the crushing station (6) and the first-stage telescopic module (8) and is used for graded filtering of materials. The first-stage telescopic module (8) and the bulk material filtering module (7) are in sliding cooperation.

2. The device for crushing bulk materials in an open-pit mine according to claim 1, characterized in that: The secondary telescopic module (1) comprises two groups of secondary fixing sleeves (101) fixed to the crushing station (6); a first telescopic sleeve (102) is movably arranged inside the secondary fixing sleeve (101); a second telescopic sleeve (103) is slidably matched at the top of the inner side of the first telescopic sleeve (102); a secondary lifting cylinder (104) is distributed in parallel on one side of the secondary fixing sleeve (101); and two ends of the secondary lifting cylinder (104) are respectively hinged to the secondary fixing sleeve (101) and the second telescopic sleeve (103); The third telescopic sleeve (802) is fixedly connected to both sides of the crossbeam (803) by bolts, and a first-level fixed sleeve (801) is nested and slidably arranged at the bottom end of the third telescopic sleeve (802), and a first-level lifting cylinder (804) is distributed in parallel with the third telescopic sleeve (802) and one side of the third telescopic sleeve (802), and the bottom end and output end of the first-level lifting cylinder (804) are respectively hinged to the first-level fixed sleeve (801) and the third telescopic sleeve (802).

3. The device for crushing bulk materials in an open-pit mine according to claim 2, characterized in that: The bulk material filtering module (7) comprises a grounding plate (701), the middle of which is in the shape of an inverted arch bridge, the surface of the grounding plate (701) is provided with evenly distributed leakage holes, both sides of the grounding plate (701) are fixedly connected with second slide rails (702) by bolts, a buffer pad (703) is arranged on the upper surface of the grounding plate (701) and outside the leakage holes, and a crushing strip (704) is also fixedly connected to the grounding plate (701) by bolts, and the crushing strip (704) corresponds to the tool body (409) at the bottom of the crossbeam (803) one by one and is squeezed together.

4. The device for crushing bulk materials in an open-pit mine according to claim 3, characterized in that: The crushing station (6) is configured to be funnel-shaped, and the top of the crushing station (6) is fixedly connected to the grounding plate (701). The third telescopic sleeve (802) is slidably matched with the second slide rail (702) through the first-level fixed sleeve (801), and a first driving module is installed between the third telescopic sleeve (802) and the second slide rail (702) for driving the first-level telescopic module (8) to move axially along the second slide rail (702).

5. The open-pit mine bulk material crushing device according to claim 1, characterized in that: The transverse sliding module (2) comprises a connecting frame (201), the connecting frame (201) is fixedly connected to the second telescopic sleeve (103) by bolts, a transverse sliding track (202) is fixedly connected to the connecting frame (201) by bolts, a moving frame (204) is slidably matched with the outer side of the connecting frame (201) by the transverse sliding track (202), and a transverse limiting block (205) is provided at the end of the transverse sliding track (202) for positioning the movable area of ​​the moving frame (204); The height detection device (203) and the lateral positioning device (206) are both installed on the connecting frame (201).

6. The device for crushing bulk materials in an open-pit mine according to claim 1, characterized in that: The longitudinal sliding module (3) comprises a connecting plate (301) fixed to the moving frame (204), a longitudinal sliding track (302) being fixedly connected to the connecting plate (301), a longitudinal limiting block (303) being slidably matched with the connecting plate (301) via the longitudinal sliding track (302), and the longitudinal limiting block (303) is fixedly connected to a fixing plate (402) at the bottom of the longitudinal sliding module (3) via screws; Longitudinal positioning devices (304) are provided on both sides of the connecting plate (301) for sensing the length of the material.

7. The device for crushing bulk materials in an open-pit mine according to claim 6, characterized in that: A positioning track (401) is fixedly connected to the fixing plate (402) at the bottom of the crossbeam (803), and a plurality of limit rails corresponding to the positioning track (401) are installed at the bottom of the crossbeam (803). A second driving module is installed between the positioning track (401) and the limit rail, and between the longitudinal limit block (303) and the connecting plate (301), for driving the crushing module (4) to move axially along the positioning track (401).

8. The device for crushing bulk materials in an open-pit mine according to claim 5, characterized in that: It also includes a visual detection module (5) installed on the lateral sliding module (2), and the visual detection module (5) includes a video monitor (510).

9. The device for crushing bulk materials in an open-pit mine according to claim 8, characterized in that: The video monitor (510) is movably arranged in a fixed shell (501), and the fixed shell (501) is fixed on a connecting frame (201). First slide rails (502) are fixedly connected to both sides of the fixed shell (501), and a lifting platform (509) is slidably connected between the first slide rails (502) on both sides. The video monitor (510) is installed on the lifting platform (509) by bolts. Two protective baffles (504) are movably arranged at the opening of the fixed shell (501). A transmission mechanism is installed in the fixed shell (501) for opening the protective baffles (504) and pushing the video monitor (510) out of the fixed shell (501); The transmission mechanism comprises two incomplete gear paddles (508) meshing with each other, a driving motor is fixedly connected to the outside of the fixed shell (501), and the output shaft of the driving motor is drivingly connected to one of the incomplete gear paddles (508), a long rod (507) is fixedly connected to the rotating shaft of the incomplete gear paddle (508), and two short rods (505) are symmetrically arranged on both sides of the lifting platform (509), and one end of the long rod (507) adjacent to the short rod (505) is The two protective baffles (504) are hinged at their middle positions with first traction rods (503) that are symmetrically distributed, and the adjacent ends of the two protective baffles (504) are hinged with second traction rods (506) that are symmetrically distributed, and the first traction rod (503) and the second traction rod (506) are distributed in parallel, the bottom end of the first traction rod (503) is hinged to the fixed shell (501), and the bottom end of the second traction rod (506) is fixedly connected to the axis of the incomplete gear paddle (508).

10. A method for operating a bulk material crushing device for an open-pit mine according to any one of claims 1 to 9, characterized in that: The steps include: Step 1: Slide the first telescopic module (8) away to open the feed port of the crushing station (6), feed in large pieces of material for crushing, and prepare to start the large piece crushing work; Step 2: After unloading is completed, the first telescopic module (8) slides to the feeding port, the first lifting cylinder (804) retracts to drive the first telescopic module (8) downward, and the tool body (409) of the first telescopic module (8) and the bulk material filtering module (7) squeeze each other to perform preliminary crushing of the bulk materials, and the crushed materials reach the crushing port via the belt conveyor; Step 3: When the material passing through the crushing port is detected by the height detection device (203) to have a material accumulation height exceeding a standard value, the secondary lifting cylinder (104) retracts to achieve the descent of the secondary telescopic module (1), and the second driving module drives the lateral sliding module (2) to slide left and right, and drives the longitudinal sliding module (3) to slide forward and backward, thereby achieving accurate positioning of the bulk material; Step 4: After the bulk material is precisely positioned, the telescopic oil cylinder (405) telescopically moves to realize the swing of the rocker (404), the swing arm (406) and the cutter body (409), thereby pressing and hammering the bulk material, and cooperating with the bottom crusher body to crush it. At the same time, the transmission mechanism is controlled to make the lifting platform (509) rise and open the protective baffle (504), and the camera monitor (510) monitors the wear of the crushing device in real time; Step 5. After the crushing process is completed, the first-level lifting cylinder (804) extends to drive the first-level telescopic module (8) to rise, so that the first-level telescopic module (8) returns to its original position. The second-level lifting cylinder (104) extends to drive the second-level telescopic module (1) to rise, and controls the lateral sliding module (2) to return to its original position. The telescopic cylinder (405) retracts to retract the crushing module (4), and the equipment returns to its initial state.

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