Ground scraping device of mine roadway repairing machine

Abstract

This invention relates to the field of mine roadway repair machine technology, specifically disclosing a ground-leveling operation device for a mine roadway repair machine, including a quick-change connection mechanism, a load-bearing frame, an angle adaptive mechanism, a lifting adjustment mechanism, a leveling mechanism, a collection mechanism, and a cleaning mechanism. The angle adaptive mechanism forms a floating support that can slightly sway with the rise and fall of the floor plate through a transverse swing shaft, side swing arms, a middle swing arm, and a return spring. The lifting adjustment mechanism limits the amount of soil the scraper blade penetrates through a lifting hydraulic cylinder and a depth-adjusting screw. The leveling mechanism cuts in first with its oblique cutting surface, and then the scraper blade drags along the ground. The collection and cleaning mechanisms simultaneously receive and discharge fine coal slime. This solves the problem of unstable scraping depth of conventional buckets or shovels, requiring frequent adjustments to the working arm angle and stick position, which makes it difficult to maintain the consistency of the floor plate flatness after leveling operations.

Description

Technical Field

[0001] This invention relates to the field of mine roadway repair machine technology, and in particular to a ground-leveling operation device for a mine roadway repair machine. Background Technology

[0002] Mining roadway repair machines are commonly used mechanical equipment in underground roadway maintenance operations in coal and metal mines. They typically consist of a traveling chassis, a rotating platform, a working arm, a hydraulic system, and attachment connection devices. After long-term exposure to ground pressure, mining-induced stress, floor heave, water damage, and vehicle traffic, the roadway floor can develop bulges, cracks, undulating patterns, and localized material accumulation, damaging the installation references for tracks, conveyors, and pipeline supports. During floor repair, workers often use buckets, breakers, or small shovels to first break up the raised areas and then level them using a pusher. This method is effective for handling large pieces of rock and hard floor heaves, but in scenarios requiring a continuously flat floor, the curved back of the bucket and the point-impact end of the breaker lack a ground-leveling structure, easily leaving grooves and undulations.

[0003] When replacing conventional shovel plates with those on existing roadway repair machines, the shovel plates are usually directly hinged to the end of the boom. The scraping depth mainly relies on the operator's visual estimation and the boom cylinder posture control. When the floor undulations are small, the material moisture content is high, and coal slime and gangue fines are mixed and adhered, the lower edge of the shovel plate is prone to detaching from the floor due to boom vibration, or to momentarily over-cutting due to local protrusions. As a result, the operator needs to frequently adjust the boom angle and stick position, making it difficult to maintain the consistency of the floor flatness after the leveling operation.

[0004] Therefore, we propose a ground-leveling device for a mine roadway repair machine to solve the above problems. Summary of the Invention

[0005] The purpose of this invention is to provide a ground-leveling device for a mine roadway repair machine to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a ground-leveling device for a mine roadway repair machine, comprising a mine roadway repair machine and a repair machine working arm, further comprising a quick-change connection mechanism connected to the repair machine working arm, a support frame fixed below the quick-change connection mechanism, an angle adaptive mechanism disposed inside the support frame, a lifting adjustment mechanism cooperating with the angle adaptive mechanism, a leveling mechanism installed below and in front of the angle adaptive mechanism, a collection mechanism located on the side of the leveling mechanism, and a cleaning mechanism disposed above the leveling mechanism; the angle adaptive mechanism comprises a transverse swing shaft, a side swing arm sleeved on the transverse swing shaft, and a middle swing arm, the transverse swing shaft being connected to the lifting adjustment mechanism via a bearing seat and mounted on the side of the angle adaptive mechanism. Mounted within a support frame, a return spring is provided between the side swing arm and the middle swing arm, allowing the leveling mechanism to swing at a slight angle around the transverse swing axis as the roadway floor undulates. The lifting adjustment mechanism includes a lifting hydraulic cylinder and a depth adjusting screw. The lifting hydraulic cylinder is used to drive the angle adaptive mechanism and the leveling mechanism to rise and fall, while the depth adjusting screw is used to limit the minimum scraping depth of the leveling mechanism. The leveling mechanism includes a leveling beam and a scraper mounting seat detachably connected below the leveling beam. The scraper mounting seat has a scraper plane for approaching the floor and a beveled cutting surface for first cutting into protruding materials. The collecting mechanism has a collecting inlet facing the scraper plane, and the cleaning mechanism has an elastic scraper capable of reciprocating along the width direction of the scraper plane.

[0007] Furthermore, the quick-change connection mechanism includes a back plate, a bracket, an upper pin hole, a lower pin hole, a locking sleeve, and a reinforcing rib. The bracket is located above the back plate and connected to the end of the repair machine's working arm. The upper and lower pin holes are respectively used to assemble with the quick-change pins of the repair machine's working arm. The locking sleeve is located on the outside of the pin to restrict the axial movement of the pin. The reinforcing rib is located on the side of the back plate facing the bracket and is used to strengthen the back plate.

[0008] Furthermore, the angle adaptive mechanism also includes a swing shaft limiting sleeve, a front crossbar, and a mounting pin. The swing shaft limiting sleeve is respectively disposed on the outside of the bearing seat, and the swing shaft limiting sleeve passes through the bearing seat and is threadedly connected to the side swing arm to limit the axial displacement of the transverse swing shaft and the side swing arm. The front crossbar is connected to the front end side of the two side swing arms and is fixedly connected to the middle swing arm. The mounting pin is fixedly installed on the front end side of the two side swing arms and is used to install the collection mechanism.

[0009] Furthermore, the lifting adjustment mechanism is configured in two sets, located on the left and right sides of the support frame respectively. Each set of lifting adjustment mechanisms includes a connecting seat, a lifting slide, a first mounting seat, a second mounting seat, a lifting hydraulic cylinder, a guide sleeve, a guide column, and a limiting gasket. The guide sleeve is fixed on the lifting slide, and the guide column passes through the guide sleeve and the lifting slide. The guide sleeve and the guide column are coaxially arranged, and the two ends of the guide column are fixedly connected to the first mounting seat and the second mounting seat respectively. The connecting seat is located on the lower side of the lifting slide near the inside of the support frame and is used to fix it to the top of the bearing seat. The first mounting seat is fixedly connected to the upper side of the support frame, and the second mounting seat is fixedly connected to the lower side of the support frame. The lifting hydraulic cylinder is connected between the first mounting seat and the lifting slide, and the limiting gasket is located below the lifting slide.

[0010] Furthermore, the lifting and adjusting mechanism also includes a handwheel, a depth limiting block, a scale rod, a scale guide tube, a positioning rack, a pawl, a pawl mounting base, and a compression spring. The depth adjusting screw is threadedly connected to the second mounting base. The handwheel is fixed to the lower end of the depth adjusting screw. The depth limiting block is rotatably connected to the depth adjusting screw and can abut against a limiting washer. The scale rod is fixedly installed at the bottom of the depth limiting block. A scale guide tube is provided below the scale rod. The scale guide tube is fixedly connected to the second mounting base, and the scale guide tube and the scale rod are coaxially arranged. The scale rod rises and falls with the depth limiting block and passes through the scale guide tube. The positioning rack is located on the side of the guide post. The pawl is installed inside the guide sleeve through the pawl mounting base, and a compression spring is provided between the pawl and the pawl mounting base. The pawl presses against the positioning rack through the compression spring.

[0011] Furthermore, the leveling mechanism also includes a scraper mounting groove, a wear-resistant pressure plate, an elongated mounting hole, a clamping bolt, a nut, a scraper bevel, and a stop bar. The scraper mounting groove is located on the lower side of the leveling beam, and the scraper mounting seat is inserted into the scraper mounting groove. The wear-resistant pressure plate is pressed onto the outer side of the leveling beam. The elongated mounting hole is located on the leveling beam and the wear-resistant pressure plate, and the elongated mounting holes of the leveling beam and the wear-resistant pressure plate are interconnected. The clamping bolt passes through the elongated mounting hole and is connected to the nut, so that the scraper mounting seat can adjust the blade extension along the length of the elongated mounting hole.

[0012] Furthermore, the collection mechanism includes a collection box, ear plate, positioning shaft pin hole, ground-feeding slipper, collection cavity, collection inlet and collection outlet. The ear plate is disposed on the upper part of the collection box and is movably connected to the mounting pin through the positioning shaft pin hole. The ground-feeding slipper is fixed on the lower side of the collection box and located in front of the scraping mechanism. The collection inlet faces the scraper plane, and the collection outlet is disposed on the top of the collection cavity.

[0013] Furthermore, the cleaning mechanism includes a mounting plate, a reciprocating slider, a cleaning guide rail, a chute, a guide rod, a reciprocating slide block, a hydraulic lifting rod, a cleaning frame, an elastic scraper, a side leak-proof plate, and a hydraulic cleaning drive cylinder. The mounting plate is fixedly connected to the side swing arm. The cleaning guide rail is located above the front crossbar and is fixedly connected to the front crossbar. The chute is formed on the upper surface of the cleaning guide rail. The guide rod is installed in the chute. The reciprocating slide block is slidably sleeved on the surface of the guide rod. The reciprocating slider is fixedly connected to the upper surface of the reciprocating slide block. The reciprocating slider is connected to the reciprocating slide block via the reciprocating slide block. The cleaning frame is slidably connected to the cleaning guide rail. A hydraulic cleaning drive cylinder is provided between the mounting plate and the reciprocating slider. The hydraulic cleaning drive cylinder is used to drive the reciprocating slider to reciprocate along the cleaning guide rail. The cleaning frame is located below the reciprocating slider. The hydraulic lifting rod is connected between the reciprocating slider and the cleaning frame. The elastic scraper is installed at the lower end of the cleaning frame. The elastic scraper is used to clean the coal slime and gangue fines adhering to the scraper surface. Side anti-leakage plates are provided on both sides of the elastic scraper to prevent coal slime and gangue fines from falling off the surface of the elastic scraper during the cleaning process.

[0014] Furthermore, the scraper mounting base is made of wear-resistant alloy steel, the lower end of the scraper plane forms a surface contact with the roadway floor, the scraper inclined surface is located on the rear side of the scraper plane, the inclined blade surface is set on the lower edge of the front side of the scraper inclined surface, and the baffle is set on the upper front side of the scraper mounting base to prevent coal slime and gangue fines from entering the connection between the scraper mounting base and the scraper beam.

[0015] Furthermore, the supporting frame is a box-shaped frame with a working window at the bottom. The angle adaptive mechanism, lifting adjustment mechanism, scraping mechanism, collection mechanism and cleaning mechanism are all set in or near the working window. The lowest point of the scraper mounting seat is lower than the bottom edge of the supporting frame, and the lowest point of the ground-contacting slipper is within the same ground-contacting reference range as the scraper plane.

[0016] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention, by setting an angle adaptive mechanism including a transverse swing shaft, a side swing arm and a middle swing arm sleeved on the transverse swing shaft, the transverse swing shaft is connected to the lifting adjustment mechanism through a bearing seat and installed in the bearing frame, and a return spring is set between the side swing arm and the middle swing arm, so that the scraping mechanism can swing around the transverse swing shaft at a slight angle with the rise and fall of the roadway floor. The passive swing response of the angle adaptive mechanism replaces the manual adjustment of the working arm posture by the driver, which solves the problem that the lower edge of the shovel plate is easy to leave the floor plate due to the shaking of the working arm or to cause instantaneous excessive material intake due to local protrusion when the existing shovel plate structure is uneven.

[0017] 2. This invention, by setting up a lifting adjustment mechanism including a lifting hydraulic cylinder and a depth adjusting screw, uses the lifting hydraulic cylinder to drive the angle adaptive mechanism and the leveling mechanism to lift and lower, and the depth adjusting screw to limit the minimum scraping depth of the leveling mechanism. It works with the positioning rack and pawl to achieve mechanical self-locking. The minimum scraping depth is mechanically limited by the cooperation of the depth adjusting screw and the limiting shim. This solves the problem that the existing scraping depth of the shovel plate mainly relies on the driver's visual estimation and the posture control of the working arm cylinder, which makes it difficult to maintain the flatness consistency of the bottom plate after the leveling operation.

[0018] 3. The present invention, by setting a scraping mechanism including a scraping beam and a scraper mounting seat detachably connected below the scraping beam, the scraper mounting seat has a scraper plane for close contact with the bottom plate and an inclined blade surface for cutting into the protruding material first, and cooperates with a collection mechanism having a collection inlet facing the scraper plane. The scraped material enters the collection chamber through the collection inlet and is discharged through the collection outlet, realizing continuous operation of scraping and collection, and solving the problem that the scraped coal slime and gangue fines accumulate in front of the scraper and affect the scraping effect.

[0019] 4. The present invention, by setting a cleaning mechanism with an elastic scraper capable of reciprocating along the width direction of the scraper plane, the elastic scraper is pressed against the scraper plane surface under the drive of a hydraulic lifting rod, and reciprocates along the width direction of the scraper plane under the drive of a hydraulic cleaning drive cylinder, thereby scraping away the coal slime and gangue fines adhering to the scraper plane surface, solving the problem of increased scraping resistance and reduced scraping effect caused by coal slime and gangue fines with high moisture content adhering to the scraper plane surface. Attached Figure Description

[0020] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0021] Figure 1 This is a structural diagram of the main body of the present invention; Figure 2 This is an installation structure diagram of the quick-change connection mechanism, the load-bearing frame, and the angle adaptive mechanism in this invention; Figure 3 This is a schematic diagram of the quick-change connection mechanism and the supporting frame in this invention; Figure 4 This is a combined structural diagram of the angle adaptive mechanism, lifting adjustment mechanism, scraping mechanism, collection mechanism and cleaning mechanism in this invention; Figure 5 This is a schematic diagram of the lifting and adjusting mechanism in this invention. Figure 1 ; Figure 6 This is a schematic diagram of the lifting and adjusting mechanism in this invention. Figure 2 ; Figure 7 For the present invention Figure 6 Enlarged view of point A in the middle; Figure 8 This is a combined structural diagram of the angle adaptive mechanism, the leveling mechanism, the collecting mechanism, and the cleaning mechanism in this invention; Figure 9 This is a schematic diagram of the cooperative structure of the angle adaptive mechanism and the scraping mechanism in this invention; Figure 10 This is a structural diagram showing the angle adaptive mechanism and the leveling mechanism in this invention. Figure 11 This is a schematic diagram of the collecting mechanism in this invention. Figure 1 ; Figure 12 This is a schematic diagram of the collecting mechanism in this invention. Figure 2 ; Figure 13 This is a schematic diagram of the cleaning mechanism in this invention.

[0022] Explanation of reference numerals in the attached figures: 1. Mine roadway repair machine; 2. Repair machine working arm; 3. Quick-change connection mechanism; 31. Back plate; 32. Hanger; 33. Upper pin hole; 34. Lower pin hole; 35. Locking sleeve; 36. Reinforcing rib; 4. Load-bearing frame; 5. Angle adaptive mechanism; 51. Side swing arm; 52. Middle swing arm; 53. Bearing seat; 54. Swing shaft limiting sleeve; 55. Lateral swing shaft; 56. Return spring; 57. Front crossbar; 58. Mounting pin; 6. Lifting and adjusting mechanism; 61. Connecting seat; 62. Lifting slide; 63. First mounting seat; 64. Second mounting seat; 65. Lifting hydraulic cylinder; 66. Guide sleeve; 67. Guide column; 68. Limiting washer; 69. Depth adjusting screw; 610. Handwheel; 611. Depth adjusting limit block; 612. Scale rod; 613. Scale guide tube; 614. Positioning rack; 615. Pawl; 616. Pawl mounting seat; 617. Compression spring; 7. Scraping mechanism; 71. Scraping beam; 72. Scraper mounting groove; 73. Wear-resistant pressure plate; 74. Elongated mounting hole; 75. Scraper mounting seat; 76. Clamping bolt; 77. Nut; 78. Scraper bevel; 79. Scraper plane; 710. Beveled blade; 711. Stop bar; 8. Collection mechanism; 81. Collection box; 82. Ear plate; 83. Positioning pin hole; 84. Ground-feeding slipper; 85. Collection chamber; 86. Collection inlet; 87. Collection outlet; 9. Cleaning mechanism; 91. Mounting plate; 92. Reciprocating slider; 93. Cleaning guide rail; 94. Slide groove; 95. Guide rod; 96. Reciprocating slide block; 97. Hydraulic lifting rod; 98. Cleaning frame; 99. Elastic scraper; 910. Side anti-leakage plate; 911. Hydraulic cleaning drive cylinder. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] Please see Figures 1 to 13 The present invention provides a technical solution: A ground-leveling device for a mine roadway repair machine includes a mine roadway repair machine 1 and a repair machine working arm 2, a quick-change connection mechanism 3 connected to the repair machine working arm 2, a support frame 4 fixed below the quick-change connection mechanism 3, an angle adaptive mechanism 5 disposed inside the support frame 4, a lifting adjustment mechanism 6 cooperating with the angle adaptive mechanism 5, a leveling mechanism 7 installed below and in front of the angle adaptive mechanism 5, a collection mechanism 8 located on the side of the leveling mechanism 7, and a cleaning mechanism 9 disposed above the leveling mechanism 7.

[0025] like Figure 1 , Figure 2 and Figure 3 As shown, the mine roadway repair machine 1 adopts a tracked or wheeled chassis commonly used in underground roadway maintenance operations in coal mines and metal mines. A slewing platform is installed on it, and the repair machine working arm 2 is installed above the slewing platform. The repair machine working arm 2 is a multi-section articulated hydraulic working arm, including a boom, a forearm and corresponding hydraulic cylinders. The end of the repair machine working arm 2 is equipped with a quick-change connector, which has an upper pin and a lower pin for quick connection with different working attachments.

[0026] The quick-change connection mechanism 3 is located at the end of the working arm 2 of the repair machine. The quick-change connection mechanism 3 includes a back plate 31, a bracket 32, an upper pin hole 33, a lower pin hole 34, a locking sleeve 35, and a reinforcing rib 36. The back plate 31 is made of a single rectangular steel plate, and the surface of the back plate 31 is perpendicular to the swing plane of the working arm 2 of the repair machine. The mounting bracket 32 ​​is positioned above the back plate 31 and is welded to the upper edge of the back plate 31. The mounting bracket 32 ​​protrudes towards the working arm 2 of the repair machine. The mounting bracket 32 ​​has a mounting groove for engaging with the quick-change connector at the end of the working arm 2. An upper pin hole 33 is located on the upper part of the back plate 31, and a lower pin hole 34 is located on the lower part of the back plate 31. The upper pin of the quick-change connector at the end of the working arm 2 passes through the upper pin hole 33, and the lower pin passes through the lower pin hole 34, enabling a hinged connection between the quick-change mechanism 3 and the working arm 2. A locking sleeve 35 is provided outside the upper and lower pins. On the side, the locking sleeve 35 is a cylindrical sleeve. The locking sleeve 35 is fitted on the part of the pin that extends out of the back plate 31. The locking sleeve 35 is fixed to the pin by a radially arranged set screw to limit the axial movement of the pin. The reinforcing rib 36 is located on the side of the back plate 31 facing the bracket 32. The reinforcing rib 36 is a triangular steel plate. One right-angled side of the reinforcing rib 36 is welded and fixed to the plate surface of the back plate 31, and the other right-angled side of the reinforcing rib 36 is welded and fixed to the lower surface of the bracket 32. Multiple sets of reinforcing ribs 36 are provided. The multiple sets of reinforcing ribs 36 are arranged at intervals along the width direction of the back plate 31 to enhance the bending strength of the back plate 31 when subjected to scraping reaction force.

[0027] The support frame 4 is fixedly connected below the quick-change connection mechanism 3, and the support frame 4 is fixedly connected to the back plate 31 by a group of high-strength bolts; the support frame 4 is a box-shaped frame with a working window at the bottom, and the support frame 4 is welded from steel plate; the support frame 4 is a hollow box structure with an open bottom to form a working window; the top plate of the support frame 4 is fixedly connected to the lower edge of the back plate 31 by a group of bolts, and the support frame 4 is located directly below the working arm 2 of the repair machine.

[0028] like Figure 2 , Figure 4 and Figure 8As shown, the angle adaptive mechanism 5 is located inside the bearing frame 4. The angle adaptive mechanism 5 includes a transverse swing shaft 55, side swing arms 51 sleeved on the transverse swing shaft 55, and a middle swing arm 52. The transverse swing shaft 55 is a cylindrical long shaft, arranged horizontally along the width direction of the bearing frame 4. Both ends of the transverse swing shaft 55 are connected to the lifting adjustment mechanism 6 through bearing seats 53. Rolling bearings are installed inside the bearing seats 53. Both ends of the transverse swing shaft 55 are installed in the inner rings of the rolling bearings. The outer rings of the rolling bearings are interference-fitted with the inner hole of the bearing seats 53. The bearing seats 53 are installed on the left and right sides inside the bearing frame 4. There are two side swing arms 51, which are sleeved on the left and right ends of the transverse swing shaft 55 respectively. The side swing arms 51 are connected to the transverse swing shaft 55 by a flat key, so that the side swing arms 51 can be adjusted to the left and right ends of the transverse swing shaft 55. The side swing arm 51 rotates synchronously with the transverse swing shaft 55; the middle swing arm 52 is sleeved in the middle of the transverse swing shaft 55, and the middle swing arm 52 is also connected to the transverse swing shaft 55 by a flat key, so that the middle swing arm 52 rotates synchronously with the transverse swing shaft 55; a return spring 56 is provided between the side swing arm 51 and the middle swing arm 52; the return spring 56 is a helical compression spring, one end of the return spring 56 is fixedly connected to the side wall of the side swing arm 51, and the other end of the return spring 56 is fixedly connected to the side wall of the middle swing arm 52; the elastic force of the return spring 56 keeps the side swing arm 51 and the middle swing arm 52 at their initial relative angle when there is no external force. When the leveling mechanism 7 swings at a small angle around the transverse swing shaft 55 with the undulation of the roadway floor, the return spring 56 undergoes elastic deformation, and after the external force disappears, it restores the side swing arm 51 and the middle swing arm 52 to their initial position.

[0029] The angle adaptive mechanism 5 also includes a swing shaft limiting sleeve 54, a front crossbar 57, and a mounting pin 58. The swing shaft limiting sleeve 54 is respectively disposed on the outside of the bearing seat 53. The swing shaft limiting sleeve 54 is a circular sleeve and is sleeved on the transverse swing shaft 55. The swing shaft limiting sleeve 54 passes through the bearing seat 53 and is threadedly connected to the side swing arm 51. The inner wall of the swing shaft limiting sleeve 54 is provided with an internal thread, and the outer wall of the side swing arm 51 is provided with an external thread. The swing shaft limiting sleeve 54 and the side swing arm 51 are fixed by threaded engagement. The end face of the swing shaft limiting sleeve 54 abuts against the outer end face of the bearing seat 53 to limit the axial displacement of the transverse swing shaft 55 and the side swing arm 51. The front crossbar 57 is connected to the front side of the two side swing arms 51. The rod 57 is arranged horizontally along the width direction of the bearing frame 4. The two ends of the front crossbar 57 are welded and fixed to the front side walls of the two side swing arms 51 respectively. The front crossbar 57 is also welded and fixed to the front side wall of the middle swing arm 52, so that the front crossbar 57 connects the two side swing arms 51 and the middle swing arm 52 into an integral frame. The mounting pin 58 is fixedly installed on the front side of the two side swing arms 51. The mounting pin 58 is a short cylindrical shaft. One end of the mounting pin 58 is welded and fixed to the front side wall of the side swing arm 51. The mounting pin 58 extends outward along the width direction of the bearing frame 4. There are two mounting pins 58. The two mounting pins 58 are located on the front side of the two side swing arms 51 respectively. The mounting pins 58 are used to install the collection mechanism 8.

[0030] like Figure 4 , Figure 5 , Figure 6 and Figure 7As shown, the lifting adjustment mechanism 6 is configured in two sets and located on the left and right sides of the supporting frame 4 respectively; each set of lifting adjustment mechanism 6 includes a connecting seat 61, a lifting slide 62, a first mounting seat 63, a second mounting seat 64, a lifting hydraulic cylinder 65, a guide sleeve 66, a guide post 67, and a limiting gasket 68; the guide sleeve 66 is fixed on the lifting slide 62, and the guide sleeve 66 passes through the upper and lower surfaces of the lifting slide 62 and is welded to the lifting slide 62; the guide post 67 passes through the guide sleeve 66 and the lifting slide 62, and the guide sleeve... Guide sleeve 66 is coaxially arranged with guide post 67. A sliding bushing is provided between the inner wall of guide sleeve 66 and the outer peripheral surface of guide post 67, so that lifting slide 62 and guide sleeve 66 can slide up and down along the axial direction of guide post 67. Both ends of guide post 67 are fixedly connected to first mounting base 63 and second mounting base 64 respectively. One end of first mounting base 63 is fixedly connected to the upper side of bearing frame 4. Second mounting base 64 is located directly below first mounting base 63. One end of second mounting base 64 is connected to the lower part of bearing frame 4. A side-fixed connection is provided, with the connecting seat 61 located on the lower side of the lifting slide 62 near the interior of the bearing frame 4. The connecting seat 61 is a rectangular plate-shaped component. The upper surface of the connecting seat 61 is welded and fixed to the lower surface of the lifting slide 62, and the lower surface of the connecting seat 61 is fixed to the top of the bearing seat 53 by a bolt group, allowing the bearing seat 53 to move up and down with the lifting slide 62. A lifting hydraulic cylinder 65 is connected between the first mounting base 63 and the lifting slide 62. The cylinder end of the lifting hydraulic cylinder 65 is hinged to the first mounting base 63. The piston rod end of the lifting hydraulic cylinder 65 is hinged to the upper surface of the lifting slide 62 via a hinge pin. When the piston rod of the lifting hydraulic cylinder 65 extends, it pushes the lifting slide 62 to slide downward along the guide post 67. When the piston rod of the lifting hydraulic cylinder 65 retracts, it pulls the lifting slide 62 to slide upward along the guide post 67. A limiting shim 68 is provided below the lifting slide 62. The upper surface of the limiting shim 68 is used to abut against the lower surface of the lifting slide 62 to limit the downward sliding limit position of the lifting slide 62.

[0031] The lifting adjustment mechanism 6 also includes a handwheel 610, a depth limiting block 611, a scale rod 612, a scale guide tube 613, a positioning rack 614, a pawl 615, a pawl mounting base 616, and a compression spring 617; the depth adjusting screw 69 is threadedly connected to the second mounting base 64; the second mounting base 64 has a threaded through hole, and the outer circumferential surface of the depth adjusting screw 69 is provided with an external thread, through which the depth adjusting screw 69 passes and threadedly engages with the second mounting base 64; the upper end of the depth adjusting screw 69 passes through the second mounting base 64 and extends upward, and the lower end of the depth adjusting screw 69 passes through the second mounting base 64 and extends downward; the handwheel 610 is fixed to the lower end of the depth adjusting screw 69, and the center of the handwheel 610 is aligned with the lower end of the depth adjusting screw 69. The ends are connected by a flat key and fixed by an axial locking screw; the depth limiting block 611 is rotatably connected to the depth adjusting screw 69, so that the depth limiting block 611 is sleeved on the upper end of the depth adjusting screw 69 and can move with the up and down movement of the depth adjusting screw 69; the upper surface of the depth limiting block 611 is used to abut against the lower surface of the limiting pad 68; the scale rod 612 is fixedly installed at the bottom of the depth limiting block 611, the upper end of the scale rod 612 is welded to the lower surface of the depth limiting block 611, and the scale rod 612 extends downward in the vertical direction; a scale guide tube 613 is provided below the scale rod 612. The scale guide tube 613 is a cylindrical sleeve and is fixedly connected to the second mounting base 64. The tube 613 and the scale rod 612 are coaxially arranged, with the lower end of the scale rod 612 inserted into the inner hole of the scale guide tube 613. The surface of the scale rod 612 has axially arranged length scale lines, and the side wall of the scale guide tube 613 has an observation window. The operator reads the scale value on the scale rod 612 through the observation window to determine the current position of the depth limit block 611. A positioning rack 614 is located on the side of the guide post 67. The positioning rack 614 is a long strip-shaped component, with vertically arranged serrations on one side surface. The positioning rack 614 is parallel to the guide post 67, and its back is welded to the outer circumference of the guide post 67. A pawl 615 is installed via the pawl. A seat 616 is installed inside the guide sleeve 66; one end of the pawl mounting seat 616 is welded and fixed to the outer wall of the guide sleeve 66, and the other end of the pawl mounting seat 616 extends toward the positioning rack 614; the pawl 615 is hinged to the pawl mounting seat 616 through a hinge pin, and the front end of the pawl 615 is provided with ratchet teeth that cooperate with the serrations of the positioning rack 614; a compression spring 617 is disposed between the pawl 615 and the pawl mounting seat 616, one end of the compression spring 617 abuts against the rear end of the pawl 615, and the other end of the compression spring 617 abuts against the side wall of the pawl mounting seat 616, and the elastic force of the compression spring 617 presses the front end of the pawl 615 toward the positioning rack 614, so that the ratchet teeth and the serrations of the positioning rack 614 are engaged;When the lifting slide 62 rises, the pawl 615 slides on the positioning rack 614, producing a continuous clicking sound. When the lifting slide 62 descends with the lifting hydraulic cylinder 65, the pawl 615 engages in the serrations of the positioning rack 614, overcoming the elastic force of the compression spring 617 and bouncing. When the lifting hydraulic cylinder 65 is not activated, the pawl 615 engages in the serrations of the positioning rack 614 to prevent the lifting slide 62 from accidentally sliding down under its own weight or external force.

[0032] like Figure 8 , Figure 9 and Figure 10 As shown, the leveling mechanism 7 is installed below the angle adaptive mechanism 5. The leveling mechanism 7 includes a leveling beam 71 and a scraper mounting seat 75 detachably connected to the lower part of the leveling beam 71. The upper surface of the leveling beam 71 is fixedly connected to the lower end of the side swing arm 51 and the lower end of the middle swing arm 52 by bolts. A scraper mounting groove 72 is provided on the lower side of the leveling beam 71. The scraper mounting groove 72 is a groove extending along the length of the leveling beam 71, and the opening of the scraper mounting groove 72 faces downward. The scraper mounting seat 75... The scraper mounting base 75 is a long, strip-shaped plate-like component. Its upper part is inserted into the scraper mounting groove 72, allowing it to slidably mount below the leveling beam 71 along the length of the groove. The scraper mounting base 75 is made of wear-resistant alloy steel, and its lower end extends below the leveling beam 71. The leveling mechanism 7 also includes a wear-resistant pressure plate 73, an elongated mounting hole 74, a clamping bolt 76, and a nut 77. The wear-resistant pressure plate 73 is pressed against the outside of the leveling beam 71. The scraper beam 71 is a long strip steel plate. The length of the wear-resistant pressure plate 73 is equal to the length of the scraper beam 71, and the wear-resistant pressure plate 73 is attached to the front surface of the scraper beam 71. An elongated oval mounting hole 74 is formed on both the scraper beam 71 and the wear-resistant pressure plate 73, and the elongated oval mounting holes 74 of the scraper beam 71 and the wear-resistant pressure plate 73 are interconnected. The thread of the clamping bolt 76 passes through the elongated oval through hole of the scraper beam 71 and the wear-resistant pressure plate 73, and the nut 77 is threaded onto the end of the clamping bolt 76 and abuts against the rear surface of the scraper beam 71. The scraper beam 71 can be rotated... Tighten nut 77 to press the wear-resistant pressure plate 73 into the scraper mounting seat 75 within the scraper mounting groove 72; since the elongated mounting hole 74 extends vertically, the scraper mounting seat 75 can adjust the blade extension along the length of the elongated mounting hole 74; after loosening nut 77, the scraper mounting seat 75 can slide up and down within the scraper mounting groove 72 to adjust the length of the lower end of the scraper mounting seat 75 extending beyond the lower surface of the scraper beam 71. After adjustment, tighten nut 77 again to fix the scraper mounting seat 75.

[0033] The scraper mounting base 75 has a scraper plane 79 for contacting the bottom plate and a beveled cutting surface 710 for pre-cutting protruding materials; the scraper plane 79 is located at the lower front end of the scraper mounting base 75, and the lower edge of the scraper plane 79 forms a surface contact with the roadway floor plate; the width direction of the scraper plane 79 is consistent with the length direction of the scraper beam 71; the scraper bevel 78 is located at the rear side of the scraper plane 79, and the scraper bevel 78 is an inclined plane that extends obliquely from the upper end of the scraper plane 79 to the rear and upward; the beveled cutting surface 710 is provided at the lower front edge of the scraper bevel 78. The inclined cutting edge 710 is an inclined cutting edge. The inclined cutting edge 710 is inclined from the lower edge of the scraper plane 79 to the rear and upward. The included angle between the inclined cutting edge 710 and the scraper plane 79 is an acute angle, which is in the range of 20° to 45°. A baffle 711 is provided on the upper front side of the scraper mounting seat 75. The baffle 711 is a long strip-shaped protrusion. The baffle 711 extends along the length of the scraper mounting seat 75. The baffle 711 is integrally formed with the scraper mounting seat 75. The baffle 711 is used to prevent coal slime and gangue fines from entering the connection between the scraper mounting seat 75 and the scraper beam 71.

[0034] like Figure 11 and Figure 12As shown, the collection mechanism 8 is located on the side of the scraping mechanism 7, and has a collection inlet 86 facing the scraper plane 79. The collection mechanism 8 includes a collection box 81, ear plates 82, positioning shaft pin holes 83, ground-feeding slippers 84, a collection cavity 85, a collection inlet 86, and a collection outlet 87; the collection box 81 is hollow inside to form a collection cavity 85; the collection box 81 is arranged along the width direction of the supporting frame 4; the ear plates 82 are set on the upper part of the collection box 81, and the lower end of the ear plates 82 is welded and fixed to the upper surface of the collection box 81, and the upper end of the ear plates 82 has a positioning shaft pin hole 83; there are two ear plates 82. Two ear plates 82 are located on the left and right sides of the collection box 81, respectively. The positioning shaft pin holes 83 of the two ear plates 82 are movably connected to the mounting pins 58 at the front ends of the two side swing arms 51. The mounting pins 58 pass through the positioning shaft pin holes 83, so that the collection box 81 is hung below the front ends of the two side swing arms 51. The collection box 81 can swing relative to the side swing arms 51 around the axis of the mounting pins 58. The ground-hugging slipper 84 is fixed to the lower side of the collection box 81 and located in front of the leveling mechanism 7. The ground-hugging slipper 84 is an arc-shaped steel plate. The upper end of the ground-hugging slipper 84 is welded and fixed to the lower surface of the collection box 81. The lower end of the ground-hugging slipper 84 extends downward and bends into an arc shape. The ground-hugging slipper 84 is arranged along the length of the collection box 81. The arc surface of the lower end of the ground-hugging slipper 84 is used to contact the tunnel floor and slide along the tunnel floor. The lowest point of the ground-hugging slipper 84 is within the same ground-hugging reference range as the scraper plane 79. The collection inlet 86 is opened on the rear side wall of the collection box 81. The collection inlet 86 is a rectangular opening. The collection inlet 86 faces the scraper plane 79. The upper edge of the collection inlet 86 is lower than the upper end of the scraper plane 79, and the lower edge of the collection inlet 86 is higher than the lower end of the scraper plane 79, so that the material scraped off by the scraper plane 79 can enter the collection chamber 85 through the collection inlet 86. The collection outlet 87 is set at the top of the collection chamber 85. The collection outlet 87 is used to connect to the external conveying pipeline to transport the material in the collection chamber 85 to the outside.

[0035] like Figure 13As shown, the cleaning mechanism 9 is positioned above the scraping mechanism 7. The cleaning mechanism 9 has an elastic scraper 99 capable of reciprocating along the width of the scraper plane 79. The cleaning mechanism 9 includes a mounting plate 91, a reciprocating slider 92, a cleaning guide rail 93, a chute 94, a guide rod 95, a reciprocating slide block 96, a hydraulic lifting rod 97, a cleaning frame 98, the elastic scraper 99, a side leak-proof plate 910, and a hydraulic cleaning drive cylinder 911. The mounting plate 91 is fixedly connected to the side swing arm 51. The side wall of the mounting plate 91 is fixedly connected to the upper side wall of the side swing arm 51 by a bolt group. The cleaning guide rail 93 is located above the front crossbar 57, and the lower surface of the cleaning guide rail 93 is flush with the front crossbar 57. The upper surface is welded and fixed; a groove 94 is formed on the upper surface of the cleaning guide rail 93, and a guide rod 95 is installed in the groove 94. The two ends of the guide rod 95 are fixedly connected to the two end side walls of the groove 94 respectively; a reciprocating slide block 96 is slidably sleeved on the surface of the guide rod 95, and the lower part of the reciprocating slide block 96 is embedded in the groove 94. The reciprocating slide block 96 can slide along the length direction of the guide rod 95; a reciprocating slider 92 is fixedly connected to the upper surface of the reciprocating slide block 96, and the lower surface of the reciprocating slider 92 is welded and fixed to the upper surface of the reciprocating slide block 96. The reciprocating slider 92 is slidably connected to the cleaning guide rail 93 through the reciprocating slide block 96; a hydraulic cleaning drive cylinder 91 is provided between the mounting plate 91 and the reciprocating slider 92. 1. The cylinder body end of the hydraulic cleaning drive cylinder 911 is hinged to the mounting plate 91 via a hinge pin, and the piston rod end of the hydraulic cleaning drive cylinder 911 is hinged to the side wall of the reciprocating slider 92 via a hinge pin; the hydraulic cleaning drive cylinder 911 is used to drive the reciprocating slider 92 to reciprocate along the cleaning guide rail 93; the cleaning frame 98 is located below the reciprocating slider 92, and the upper end of the cleaning frame 98 is fixedly connected to the lower end of the hydraulic lifting rod 97; the hydraulic lifting rod 97 is connected between the reciprocating slider 92 and the cleaning frame 98, the cylinder body end of the hydraulic lifting rod 97 is fixedly connected to the lower surface of the reciprocating slider 92, and the piston rod end of the hydraulic lifting rod 97 is fixedly connected to the upper surface of the cleaning frame 98. Fixed connection; when the piston rod of the hydraulic lifting rod 97 extends, it pushes the cleaning frame 98 to move downward; when the piston rod of the hydraulic lifting rod 97 retracts, it pulls the cleaning frame 98 to move upward; the elastic scraper 99 is installed at the lower end of the cleaning frame 98. The elastic scraper 99 is a rectangular elastic plate made of polyurethane rubber or spring steel plate; the upper end of the elastic scraper 99 is fixedly connected to the lower end of the cleaning frame 98 by bolts, and the lower end of the elastic scraper 99 extends vertically downward to the surface of the scraper plane 79; the lower edge of the elastic scraper 99 abuts against the surface of the scraper plane 79; the elastic scraper 99 is used to clean the coal slime and gangue fines adhering to the surface of the scraper plane 79;Both sides of the elastic scraper 99 are provided with side leak-proof plates 910. The side leak-proof plates 910 are rectangular thin plates, with their upper ends fixedly connected to the lower ends of the cleaning frame 98. The side leak-proof plates 910 are located on the left and right sides of the elastic scraper 99, and their surfaces are perpendicular to the surface of the elastic scraper 99, used to prevent coal slime and gangue fines from falling from the surface of the elastic scraper 99 during the cleaning process.

[0036] When the cleaning mechanism 9 is working, the piston rod of the hydraulic lifting rod 97 extends, pushing the cleaning frame 98 downward, so that the lower edge of the elastic scraper 99 presses against the surface of the scraper plane 79; the piston rod of the hydraulic cleaning drive cylinder 911 reciprocates, driving the reciprocating slider 92 to reciprocate along the cleaning guide rail 93. The reciprocating slider 92 drives the cleaning frame 98 and the elastic scraper 99 to reciprocate along the width direction of the scraper plane 79. The lower edge of the elastic scraper 99 slides back and forth on the surface of the scraper plane 79, scraping off the coal slime and gangue fines adhering to the surface of the scraper plane 79; during the scraping process, the side anti-leakage plate 910 prevents the scraped material from falling from both sides of the elastic scraper 99.

[0037] In actual operation, the mine roadway repair machine 1 is first driven to the roadway floor area to be repaired. The working arm 2 of the repair machine is manipulated to align the quick-change connection mechanism 3 with the position of the floor to be leveled. The bracket 32 ​​of the quick-change connection mechanism 3 is engaged with the quick-change connector at the end of the working arm 2 of the repair machine. The upper pin of the working arm 2 passes through the upper pin hole 33 and the lower pin passes through the lower pin hole 34. The locking sleeve 35 is fitted on the outside of the pin and locked with the set screw to restrict the axial movement of the pin. The bearing frame 4 is lowered together with the quick-change connection mechanism 3, so that the scraper mounting seat 75 of the leveling mechanism 7 approaches the surface of the roadway floor. The piston rod of the lifting hydraulic cylinder 65 of the lifting adjustment mechanism 6 extends, pushing the lifting slide 62 to slide downward along the guide column 67. When the lifting slide 62 moves downward, it drives the bearing seat 53 and the transverse swing shaft 55 to move downward through the connecting seat 61. The angle adaptive mechanism 5 descends as a whole, and the scraping mechanism 7 descends together with the angle adaptive mechanism 5. When the lower edge of the scraper plane 79 of the scraper mounting seat 75 contacts the surface of the roadway floor, the piston rod of the lifting hydraulic cylinder 65 continues to extend, so that the lower edge of the scraper plane 79 is pressed into the surface of the roadway floor with a certain pressure. During the downward movement of the lifting slide 62, the pawl 615 slides on the positioning rack 614. When the lifting slide 62 stops moving, the pawl 615 is subjected to the elastic force of the compression spring 617. The lower locking mechanism engages with the teeth of the positioning rack 614 to prevent the lifting slide 62 from accidentally sliding down during operation due to vibration or its own weight. Rotating the handwheel 610 drives the depth adjustment screw 69 to rotate. The depth adjustment screw 69 rotates in the threaded through hole of the second mounting base 64 and moves up or down. The depth adjustment limit block 611 moves up and down with the depth adjustment screw 69. The distance between the upper surface of the depth adjustment limit block 611 and the lower surface of the limit shim 68 is the remaining downward stroke of the lifting slide 62, thus limiting the minimum scraping depth of the scraper mounting base 75. The scale rod 612 rises and falls with the depth adjustment limit block 611. The operator reads the scale value on the scale rod 612 through the observation window of the scale guide tube 613 to obtain the currently set minimum scraping depth value.

[0038] During the leveling operation, the mine roadway repair machine 1 moves forward, and the working arm 2 of the repair machine pushes the entire ground leveling device forward. The inclined blade 710 of the scraper mounting seat 75 first cuts into the protruding material on the roadway floor. The inclination angle of the inclined blade 710 causes the protruding material to slide upward along the inclined blade 710 and generate shearing and crushing. The scraper plane 79 then forms surface contact with the floor surface, scraping the protruding material off the floor surface. The scraped coal slime, gangue fines and crushed materials move upward along the scraper plane 79 and enter the collection chamber 85 of the collection box 81 through the collection inlet 86. The material in the collection chamber 85 is transported to the external conveying pipeline through the collection outlet 87. The external conveying pipeline transports the material to the collection hopper or conveyor belt of the mine roadway repair machine 1. When the tunnel floor is uneven, the scraper mounting base 75 is subjected to a reaction force from the floor. This reaction force is transmitted to the side swing arm 51 and the middle swing arm 52 through the leveling beam 71. The side swing arm 51 and the middle swing arm 52 swing at a slight angle around the axis of the transverse swing shaft 55, allowing the leveling mechanism 7 to swing at a slight angle around the transverse swing shaft 55 with the unevenness of the tunnel floor. The return spring 56 elastically deforms between the side swing arm 51 and the middle swing arm 52, absorbing the impact energy generated by the unevenness of the floor, and returning the side swing arm 51 and the middle swing arm 52 to their initial positions after the unevenness of the floor disappears. During the leveling operation, the lower arc surface of the ground-contacting slipper 84 is always in contact with the tunnel floor and slides along the floor surface. The ground-contacting slipper 84 supports the collection box 81 to maintain a stable height above the ground. The collection inlet 86 always maintains a relatively fixed positional relationship with the scraper plane 79, ensuring that the scraped material can continuously enter the collection chamber 85.

[0039] After a period of time, coal slime and gangue fines will adhere to the surface of the scraper plane 79, affecting the scraping effect. The piston rod of the hydraulic lifting rod 97 of the cleaning mechanism 9 extends, pushing the cleaning frame 98 downward, so that the lower edge of the elastic scraper 99 is pressed against the surface of the scraper plane 79. The piston rod of the hydraulic cleaning drive cylinder 911 reciprocates, driving the reciprocating slider 92 to reciprocate along the cleaning guide rail 93. The reciprocating slider 92 slides reciprocally in the groove 94 along the guide rod 95 via the reciprocating slide block 96. The cleaning frame 98 and the elastic scraper 99 reciprocate along the width of the scraper plane 79. The lower edge of the elastic scraper 99 slides back and forth on the surface of the scraper plane 79, scraping away the coal slime and gangue fines adhering to the surface of the scraper plane 79. The side anti-leakage plate 910 prevents the scraped material from falling from both sides of the elastic scraper 99 during the reciprocating motion of the elastic scraper 99. After cleaning is completed, the piston rod of the hydraulic lifting rod 97 retracts, pulling the cleaning frame 98 upward, so that the elastic scraper 99 leaves the surface of the scraper plane 79.

[0040] When the blade edge of the scraper mounting seat 75 is worn, loosen the nut 77 and slide the scraper mounting seat 75 downward along the scraper mounting groove 72 to increase the length of the lower end of the scraper mounting seat 75 extending beyond the lower surface of the scraper beam 71, thus compensating for the wear of the blade edge. After adjustment, tighten the nut 77 again to fix the scraper mounting seat 75. When the scraper mounting seat 75 is worn to the point of needing replacement, completely loosen the nut 77, pull the scraper mounting seat 75 out of the scraper mounting groove 72, replace it with a new scraper mounting seat 75, reinstall and tighten it.

[0041] All contents not described in detail in the specification are existing technologies known to those skilled in the art, and the model parameters of each electrical appliance are not specifically limited; conventional equipment can be used. Electrical control components not mentioned in this technical solution are not shown in the figures because they are existing technologies, and will not be described here.

[0042] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A ground-leveling device for a mine roadway repair machine, comprising a mine roadway repair machine (1) and a repair machine working arm (2), characterized in that: It also includes a quick-change connection mechanism (3) connected to the working arm (2) of the repair machine, a support frame (4) fixed below the quick-change connection mechanism (3), an angle adaptive mechanism (5) set inside the support frame (4), a lifting adjustment mechanism (6) cooperating with the angle adaptive mechanism (5), a scraping mechanism (7) installed below the angle adaptive mechanism (5), a collection mechanism (8) located on the side of the scraping mechanism (7), and a cleaning mechanism (9) set above the scraping mechanism (7); the angle adaptive mechanism (5) includes a transverse swing shaft (55), a side swing arm (51) sleeved on the transverse swing shaft (55), and a middle swing arm (52). The transverse swing shaft (55) is connected to the lifting adjustment mechanism (6) through a bearing seat (53) and installed in the support frame (4). A return spring (56) is provided between the side swing arm (51) and the middle swing arm (52). The scraping mechanism (7) can swing at a slight angle around the transverse swing axis (55) as the roadway floor undulates; the lifting adjustment mechanism (6) includes a lifting hydraulic cylinder (65) and a depth adjusting screw (69). The lifting hydraulic cylinder (65) is used to drive the angle adaptive mechanism (5) and the scraping mechanism (7) to lift and lower. The depth adjusting screw (69) is used to limit the minimum scraping depth of the scraping mechanism (7); the scraping mechanism (7) includes a scraping beam (71) and a scraper mounting seat (75) detachably connected to the scraping beam (71). The scraper mounting seat (75) has a scraper plane (79) for close to the floor and a beveled blade (710) for cutting into the protruding material first; the collecting mechanism (8) has a collecting inlet (86) facing the scraper plane (79), and the cleaning mechanism (9) has an elastic scraper (99) that can reciprocate along the width direction of the scraper plane (79).

2. The ground-leveling device for a mine roadway repair machine according to claim 1, characterized in that: The quick-change connection mechanism (3) includes a back plate (31), a bracket (32), an upper pin hole (33), a lower pin hole (34), a locking sleeve (35), and a reinforcing rib (36). The bracket (32) is located above the back plate (31) and connected to the end of the repair machine working arm (2). The upper pin hole (33) and the lower pin hole (34) are respectively used to assemble with the quick-change pin of the repair machine working arm (2). The locking sleeve (35) is located on the outside of the pin to restrict the axial movement of the pin. The reinforcing rib (36) is located on the side of the back plate (31) facing the bracket (32) and is used to strengthen the strength of the back plate (31).

3. The ground-leveling device for a mine roadway repair machine according to claim 1, characterized in that: The angle adaptive mechanism (5) further includes a swing shaft limiting sleeve (54), a front crossbar (57), and a mounting pin (58). The swing shaft limiting sleeve (54) is respectively disposed on the outside of the bearing seat (53), and the swing shaft limiting sleeve (54) passes through the bearing seat (53) and is threadedly connected to the side swing arm (51) to limit the axial displacement of the transverse swing shaft (55) and the side swing arm (51). The front crossbar (57) is connected to the front end side of the two side swing arms (51) and is fixedly connected to the middle swing arm (52). The mounting pin (58) is fixedly installed on the front end side of the two side swing arms (51) and is used to install the collection mechanism (8).

4. The ground-leveling device for a mine roadway repair machine according to claim 1, characterized in that: The lifting adjustment mechanism (6) is configured in two sets and located on the left and right sides of the supporting frame (4) respectively. Each set of lifting adjustment mechanism (6) includes a connecting seat (61), a lifting slide (62), a first mounting seat (63), a second mounting seat (64), a lifting hydraulic cylinder (65), a guide sleeve (66), a guide column (67), and a limiting gasket (68). The guide sleeve (66) is fixed on the lifting slide (62). The guide column (67) passes through the guide sleeve (66) and the lifting slide (62), and the guide sleeve (66) and the guide column (67) are coaxially arranged. The two ends of the guide column (67) are... The first mounting base (63) and the second mounting base (64) are fixedly connected respectively. The connecting base (61) is located on the lower side of the lifting slide (62) near the inside of the bearing frame (4). The connecting base (61) is used to fix the top of the bearing seat (53). The first mounting base (63) is fixedly connected to the upper side of the bearing frame (4). The second mounting base (64) is fixedly connected to the lower side of the bearing frame (4). The lifting hydraulic cylinder (65) is connected between the first mounting base (63) and the lifting slide (62). The limiting gasket (68) is set below the lifting slide (62).

5. The ground-leveling device for a mine roadway repair machine according to claim 4, characterized in that: The lifting adjustment mechanism (6) further includes a handwheel (610), a depth limiting block (611), a scale rod (612), a scale guide tube (613), a positioning rack (614), a pawl (615), a pawl mounting base (616), and a compression spring (617). The depth adjusting screw (69) is threadedly connected to the second mounting base (64). The handwheel (610) is fixed at the lower end of the depth adjusting screw (69). The depth limiting block (611) is rotatably connected to the depth adjusting screw (69) and can abut against the limiting washer (68). The scale rod (612) is fixedly installed at the bottom of the depth limiting block (611). Below the scale rod (612) is a... A graduated guide tube (613) is fixedly connected to the second mounting base (64), and the graduated guide tube (613) and the graduated rod (612) are coaxially arranged. The graduated rod (612) rises and falls with the depth limiting block (611) and passes through the graduated guide tube (613). The positioning rack (614) is arranged on the side of the guide post (67). The pawl (615) is installed on the inside of the guide sleeve (66) through the pawl mounting base (616), and a compression spring (617) is arranged between the pawl (615) and the pawl mounting base (616). The pawl (615) is pressed against the positioning rack (614) by the compression spring (617).

6. The ground-leveling device for a mine roadway repair machine according to claim 1, characterized in that: The scraping mechanism (7) also includes a scraper mounting groove (72), a wear-resistant pressure plate (73), an elongated mounting hole (74), a clamping bolt (76), a nut (77), a scraper inclined surface (78), and a stop bar (711). The scraper mounting groove (72) is located on the lower side of the scraping beam (71). The scraper mounting seat (75) is inserted into the scraper mounting groove (72). The wear-resistant pressure plate (73) is pressed on the outer side of the scraping beam (71). The elongated mounting hole (74) is located on the scraping beam (71) and the wear-resistant pressure plate (73). The elongated mounting holes (74) of the scraping beam (71) and the wear-resistant pressure plate (73) are interconnected. The clamping bolt (76) passes through the elongated mounting hole (74) and is connected to the nut (77), so that the scraper mounting seat (75) can adjust the blade extension along the length of the elongated mounting hole (74).

7. The ground-leveling device for a mine roadway repair machine according to claim 1, characterized in that: The collection mechanism (8) includes a collection box (81), an ear plate (82), a positioning shaft pin hole (83), a ground-feeding slipper (84), a collection cavity (85), a collection inlet (86), and a collection outlet (87). The ear plate (82) is located on the upper part of the collection box (81) and is movably connected to the mounting pin (58) through the positioning shaft pin hole (83). The ground-feeding slipper (84) is fixed on the lower side of the collection box (81) and located in front of the scraping mechanism (7). The collection inlet (86) faces the scraper plane (79), and the collection outlet (87) is located on the top of the collection cavity (85).

8. The ground-leveling device for a mine roadway repair machine according to claim 3, characterized in that: The cleaning mechanism (9) includes a mounting plate (91), a reciprocating slider (92), a cleaning guide rail (93), a chute (94), a guide rod (95), a reciprocating slide block (96), a hydraulic lifting rod (97), a cleaning frame (98), an elastic scraper (99), a side leak-proof plate (910), and a hydraulic cleaning drive cylinder (911). The mounting plate (91) is fixedly connected to the side swing arm (51). The cleaning guide rail (93) is located above the front crossbar (57) and is fixedly connected to the front crossbar (57). The chute (94) is opened on the upper surface of the cleaning guide rail (93). The guide rod (95) is installed in the chute (94). The reciprocating slide block (96) is slidably sleeved on the surface of the guide rod (95). The reciprocating slider (92) is fixedly connected to the upper surface of the reciprocating slide block (96). 2) The reciprocating slide (96) is slidably connected to the cleaning guide rail (93). A hydraulic cleaning drive cylinder (911) is provided between the mounting plate (91) and the reciprocating slider (92). The hydraulic cleaning drive cylinder (911) is used to drive the reciprocating slider (92) to reciprocate along the cleaning guide rail (93). The cleaning frame (98) is located below the reciprocating slider (92). The hydraulic lifting rod (97) is connected between the reciprocating slider (92) and the cleaning frame (98). The elastic scraper (99) is installed at the lower end of the cleaning frame (98). The elastic scraper (99) is used to clean the coal slime and gangue fines adhering to the surface of the scraper plane (79). Side anti-leakage plates (910) are provided on both sides of the elastic scraper (99) to prevent coal slime and gangue fines from falling off the surface of the elastic scraper (99) during the cleaning process.

9. The ground-leveling device for a mine roadway repair machine according to claim 6, characterized in that: The scraper mounting base (75) is made of wear-resistant alloy steel. The lower end of the scraper plane (79) forms a surface contact with the roadway floor. The scraper inclined surface (78) is located on the rear side of the scraper plane (79). The inclined blade surface (710) is set on the lower front edge of the scraper inclined surface (78). The baffle (711) is set on the upper front side of the scraper mounting base (75) to prevent coal slime and gangue fines from entering the connection between the scraper mounting base (75) and the scraper beam (71).

10. The ground-leveling device for a mine roadway repair machine according to claim 1, characterized in that: The supporting frame (4) is a box-shaped frame with a working window at the bottom. The angle adaptive mechanism (5), lifting adjustment mechanism (6), scraping mechanism (7), collecting mechanism (8) and cleaning mechanism (9) are all set in the working window or at their adjacent positions. The lowest point of the scraper mounting seat (75) is lower than the bottom edge of the supporting frame (4), and the lowest point of the ground-feeding slipper (84) is within the same ground-feeding reference range as the scraper plane (79).

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