Crushing device for digging and anchoring all-in-one machine

Abstract

The utility model relates to the technical field of coal mine production, and discloses a crushing device for a digging and anchoring all-in-one machine, which comprises a portal frame, a material passing groove is arranged at the center of the bottom of the portal frame, crushing components are arranged in the portal frame at equal intervals, the output ends of the crushing components are fixedly connected with a sliding column, and a limiting rod is inserted in the sliding column in a penetrating manner; a sliding groove is formed in the portal frame. The portal frame and the crushing assembly are installed on the outer side of the belt conveyor, the cutting teeth can preliminarily crush coal gangue moving at a high speed, the motor drives the driving block to rotate, the sliding column drives the cutting teeth to repeatedly hit the coal gangue through cooperation of the steel ball and the base plate, and large coal gangue is crushed into small coal gangue blocks. Strong friction with equipment such as a belt in the conveying process is avoided, the conditions of belt deviation, protecting net damage and the like are reduced, the equipment maintenance and replacement cost is reduced, material conveying safety is guaranteed, and the potential safety hazard that coal gangue falls to crush operators is eliminated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of coal mine production, more particularly to a crushing device for a combined excavating and bolting machine. BACKGROUND

[0002] The combined excavating and bolting machine, as a kind of coal mine underground high-efficiency excavating equipment integrating excavating and supporting functions, occupies an important position in modern coal mining operations, and its structure design is exquisite and complete in function, and the cutting part of the equipment is equipped with a cutting drum full of drill teeth, which is like a sharp "tooth" and is a key component for breaking rock and coal. After the driver controls the combined excavating and bolting machine to reach the designated operating position, precise positioning is first performed to ensure that the equipment is in the best working condition. Then, the cutting drum is started to rotate at high speed, and according to the pre-designed cycle schedule, the cutting drum gradually cuts the coal or rock from top to bottom. Under the action of strong mechanical force, the coal and rock are gradually broken and peeled off, thereby completing the excavation of the roadway in an orderly manner. In the material transportation link, the scraper conveyor is located at the bottom of the equipment and plays a crucial role in collecting the cut coal and rock and continuously conveying them to the transfer machine. The transfer machine closely connects with the scraper conveyor to further transfer the materials to the subsequent transportation equipment, such as the belt conveyor, realizing the continuous transportation of materials from the working face to the well.

[0003] However, in actual production, the loading system of the combined excavating and bolting machine often transports large pieces of coal gangue during cutting. These large pieces of coal gangue will rub against the belt and other equipment when transported by the belt conveyor. This friction is not negligible and can not only cause the belt to be pressed off-center, leading to deviation of the belt during operation and seriously affecting the transportation efficiency, but also can damage surrounding equipment such as the guard net, greatly increasing the hidden risk. Frequent equipment damage undoubtedly increases the cost of equipment maintenance and replacement, causing heavy economic burden to coal production. More seriously, large pieces of coal gangue can easily fall during transportation, and once they hit the on-site workers, they will cause serious safety accidents and pose a great threat to the safety of workers. UTILITY MODEL CONTENTS

[0004] In order to overcome the above-mentioned defects of the prior art, the utility model provides a crushing device for a combined excavating and bolting machine to solve the problems in the above background technology.

[0005] The utility model provides technical schemes as follows: A kind of crushing device for excavating anchor integrated machine, including portal frame, the bottom center of the portal frame is equipped with pass-through slot, inside equidistant mounting of the portal frame is equipped with crushing assembly, the output end of the crushing assembly is fixedly connected with sliding column, the inside of the sliding column is inserted with limiting rod, the inside of the portal frame is equipped with sliding slot, the outer surface of the portal frame is fixedly installed with motor, the output end of the motor is fixedly connected with driving shaft, the outer surface of the driving shaft is equidistantly fixedly connected with driving block, the inside of the sliding column is fixedly connected with cutting pick.

[0006] Further, the crushing assembly includes a sealing tube fixedly connected inside the portal frame, a sealing cavity and a sealing groove are formed inside the sealing tube, the inside of the sealing cavity is in communication with the inside of the sealing groove, a sealing disc is sealingly connected inside the sealing cavity, a connecting rod is fixedly connected to the surface center of the sealing disc close to the sliding column, the end of the connecting rod away from the sealing disc is fixedly connected to the surface of the sliding column, a backing plate is fixedly connected to the surface of the sliding column away from the connecting rod, a gas outlet groove is equidistantly formed in the surface of the sealing tube close to the sliding column, an injection tube is fixedly connected inside the sealing tube at the center, in communication with the inside of the sealing cavity, and a sealing bolt is sealingly screwed into the inside of the injection tube away from the sealing cavity.

[0007] Further, the surface of the driving block is arc-shaped, steel balls are movably mounted inside the driving block, the surface of the steel balls away from the driving shaft extends to the outside of the driving block, the surface of the backing plate close to the driving shaft is arc-shaped, and the surface of the steel balls is rollingly connected to the surface of the backing plate.

[0008] Further, bearings are fixedly installed at both ends of the outer surface of the driving shaft, and the outer ring of the bearing is fixedly connected inside the portal frame.

[0009] Further, a sliding groove matching the limiting rod is formed in the surface of the sliding column, the sliding column is slidingly connected to the outer surface of the limiting rod through the sliding groove, and the sliding column and the backing plate are slidingly connected inside the sliding slot.

[0010] Further, the driving shaft and the driving block are both rotatably connected inside the sliding slot, and the end of the connecting rod away from the sealing disc extends to the inside of the sliding slot.

[0011] Further, the end of the sealing tube away from the connecting rod extends to the outer surface of the portal frame, and the sealing bolt is rotatably connected to the outside of the portal frame.

[0012] Further, the inside of the sealing cavity is filled with hydraulic oil, the end of the inside of the sealing cavity away from the sealing bolt is in communication with the outside of the sealing tube through the gas outlet groove, and under normal circumstances, the sealing disc slides away from the sealing bolt due to the pressure of the hydraulic oil in the inside of the sealing cavity.

[0013] The technical effects and advantages of the utility model are as follows:

[0014] 1. The utility model discloses a gantry and crushing assembly are installed to the outside of the belt conveyor, and the cutting tooth can preliminarily crush the coal gangue of high -speed movement, and the motor drives the driving block to rotate, passes through the cooperation of steel ball and the backing plate, makes the sliding column drive cutting tooth repeatedly knock the coal gangue, and the big piece coal gangue is crushed into small piece, avoids its strong friction with the equipment such as belt in the transportation process, reduces the belt deviation, the damage of protective net and so on, reduces the equipment maintenance and replacement cost, guarantees the material transport safety, eliminates the security risk of the worker being hurt by the coal gangue falling.

[0015] 2. The utility model discloses a crushing assembly, and the reciprocating motion of cutting tooth is realized by the pressure of hydraulic oil, and the hitting strength is big and stable, and the arc design on the surface of driving block and internal steel ball cooperate well with the backing plate, make the sliding of sliding column more smooth, improve the crushing efficiency, and each component works cooperatively, adapts to the poor working environment in coal mine, can stably operate for a long time, effectively improves the working efficiency of the digging and anchoring integrated machine in the material transport link. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is the structure schematic diagram of the utility model;

[0017] Figure 2 It is Figure 1 The longitudinal section view of the utility model;

[0018] Figure 3 It is the connecting schematic diagram of crushing assembly and sliding column in the utility model;

[0019] Figure 4 It is Figure 3 The enlarged view of A in the utility model;

[0020] Figure 5 It is the connecting schematic diagram of sliding column and backing plate in the utility model;

[0021] Figure 6 It is the section view of crushing assembly in the utility model.

[0022] The figure mark is: 1, gantry;2, pass material groove;3, crushing assembly;31, sealing pipe;32, sealing cavity;33, sealing groove;34, sealing disc;35, connecting rod;36, outlet groove;37, injection pipe;38, sealing bolt;4, sliding column;5, sliding groove;6, limit rod;7, backing plate;8, driving shaft;9, driving block;91, steel ball;10, motor;11, cutting tooth. DETAILED DESCRIPTION

[0023] The utility model makes further explanation in combination with specific embodiments, however, people skilled in the art should understand that the detailed explanation given in combination with the drawings is to explain better, the structure of the utility model must exceed these limited embodiments, and for some equivalent alternative or common means, the detailed explanation is not given in the text, but still belongs to the protection scope of the application.

[0024] Figures 1-6 It is the best embodiment of the utility model, the following will be combined with the drawings Figures 1-6 The utility model makes further explanation.

[0025] A kind of breaking device for excavating anchor integrated machine, including portal frame 1, the bottom center of portal frame 1 is equipped with pass-through trough 2, breaking assembly 3 is equidistantly installed in the inside of portal frame 1, the output end of breaking assembly 3 is fixedly connected with sliding column 4, limit rod 6 is inserted into the inside of sliding column 4, sliding groove 5 is equipped in the inside of portal frame 1, motor 10 is fixedly installed on the outer surface of portal frame 1, motor 10 is powered by underground power system, driving shaft 8 is fixedly connected to the output end of motor 10, driving block 9 is equidistantly fixedly connected to the outer surface of driving shaft 8, cutting tooth 11 is fixedly connected in the inside of sliding column 4.

[0026] In the embodiment, portal frame 1 provides support and installation base for the whole device, pass-through trough 2 facilitates coal gangue to pass, breaking assembly 3 is used as core breaking power source, the output end is connected with sliding column 4, so that cutting tooth 11 can beat and break coal gangue, limit rod 6 limits the movement direction of sliding column 4, ensures that cutting tooth 11 stably beats, sliding groove 5 provides sliding track for sliding column 4 and backing plate 7, motor 10 drives driving shaft 8 and driving block 9 to rotate, and then drives sliding column 4 to move, finally breaks coal gangue by using cutting tooth 11, solves the problem of large coal gangue transportation, guarantees transportation safety, reduces equipment loss and maintenance cost.

[0027] Specifically, breaking assembly 3 includes equidistantly fixedly connected sealing tube 31 in the inside of portal frame 1, sealing cavity 32 and sealing groove 33 are equipped in the inside of sealing tube 31, the inside of sealing cavity 32 is communicated with the inside of sealing groove 33, sealing disc 34 is sealingly and slidably connected in the inside of sealing cavity 32, connecting rod 35 is fixedly connected to the surface center of sealing disc 34 close to sliding column 4, the end face of connecting rod 35 away from sealing disc 34 is fixedly connected to the surface of sliding column 4, backing plate 7 is fixedly connected to the surface of sliding column 4 away from connecting rod 35, air outlet groove 36 is equidistantly equipped on the surface of sealing tube 31 close to sliding column 4, injection tube 37 is fixedly connected in the inside center of sealing tube 31 and communicated with the inside of sealing cavity 32, sealing bolt 38 is sealingly and screwedly installed in the inside of injection tube 37 away from sealing cavity 32.

[0028] In the embodiment, the sealing tube 31, the sealing cavity 32, the sealing disc 34 and the like are matched to realize the reciprocating movement of the cutting tooth 11 by using hydraulic oil. The hydraulic oil in the sealing cavity 32 flows between the sealing cavity 32 and the sealing groove 33 under the extrusion of the sealing disc 34. When the driving block 9 drives the pad 7 to compress the hydraulic oil, the hydraulic oil stores energy. When the driving block 9 is separated from the pad 7, the hydraulic oil releases energy to quickly reset the sealing disc 34, drives the cutting tooth 11 to hit the coal gangue powerfully, ensures the stability and strength of the crushing degree, improves the crushing effect, the charging pipe 37 and the sealing bolt 38 facilitate the addition and sealing of the hydraulic oil, ensure the normal operation of the system, and the air outlet groove 36 balances the air pressure inside and outside the sealing tube 31 to prevent the abnormal pressure from affecting the operation of the device.

[0029] Specifically, the surface of the driving block 9 is arc-shaped, steel balls 91 are equidistantly movably installed in the inside of the driving block 9, the surface of the steel balls 91 extends to the outside of the driving block 9 away from the surface of the driving shaft 8, the surface of the pad 7 close to the driving shaft 8 is arc-shaped, and the surface of the steel balls 91 is rollingly connected to the surface of the pad 7.

[0030] In the embodiment, the arc-shaped design and the cooperation of the steel balls 91 make the transmission between the driving block 9 and the pad 7 more smooth. The arc-shaped surface increases the contact area, disperses the pressure, reduces the abrasion, changes the sliding friction to rolling friction by the steel balls 91, reduces the friction, makes the driving block 9 more easily push the pad 7 when rotating, further stably slides the sliding column 4, ensures the stability of the cutting tooth 11 hitting the coal gangue, improves the crushing efficiency, and prolongs the service life of the device.

[0031] Specifically, bearings are fixedly installed at both ends of the outer surface of the driving shaft 8, and the outer rings of the bearings are fixedly connected to the inside of the portal frame 1.

[0032] In the embodiment, the installation of the bearings makes the driving shaft 8 rotate more stably, reduces the shaking and friction when the driving shaft 8 rotates, ensures the rotation accuracy of the driving block 9, makes the driving block 9 stably push the pad 7, further ensures the sliding column 4 to accurately hit the coal gangue by driving the cutting tooth 11, improves the reliability and stability of the crushing device, and reduces the risk of equipment failure.

[0033] Specifically, the surface of the sliding column 4 is provided with a sliding groove matched with the limiting rod 6, the sliding column 4 is slidably connected to the outer surface of the limiting rod 6 through the sliding groove, and the sliding column 4 and the pad 7 are slidably connected in the inside of the sliding groove 5.

[0034] In the embodiment, the sliding groove cooperates with the limiting rod 6 to limit the movement track of the sliding column 4, so that the sliding column 4 can only slide in the direction of the limiting rod 6, ensures the accurate direction of the cutting tooth 11 hitting the coal gangue, avoids the shaking of the cutting tooth 11 to cause poor crushing effect, and the sliding column 4 and the pad 7 slide in the sliding groove 5 to provide stable support and guidance for them, ensures the stability of the whole movement process, and enhances the stability and reliability of the device.

[0035] Specifically, the driving shaft 8 and the driving block 9 are both rotationally connected inside the sliding groove 5, and the connecting rod 35 extends to the inside of the sliding groove 5 from the end away from the sealing disc 34.

[0036] In this embodiment, the driving shaft 8 and the driving block 9 are rotationally connected inside the sliding groove 5, which not only ensures the rotation space, but also makes the movement of the driving block 9 more stable, thereby stabilizing the pushing of the pad plate 7 and the sliding column 4. The connecting rod 35 extends to the inside of the sliding groove 5, making the connection between the sealing disc 34 and the sliding column 4 more stable, ensuring that the movement of the sealing disc 34 can be accurately transmitted to the sliding column 4, and ensuring that the hitting action of the cutting tooth 11 is accurate and powerful, thereby improving the working performance of the crushing device.

[0037] Specifically, the sealing pipe 31 extends to the outer surface of the gantry 1 from the end away from the connecting rod 35, and the sealing bolt 38 is rotationally connected outside the gantry 1.

[0038] In this embodiment, the sealing pipe 31 extends to the outer surface of the gantry 1, which facilitates the installation, maintenance and repair of the internal components of the sealing pipe 31, such as adding or replacing hydraulic oil. The sealing bolt 38 is rotationally connected outside the gantry 1, which facilitates the tightening or loosening of the sealing bolt 38 by the operator, realizes the sealing and opening of the injection pipe 37, ensures the normal addition and sealing of the hydraulic oil, and ensures the normal working of the crushing assembly 3.

[0039] Specifically, the sealing cavity 32 is filled with hydraulic oil, and the end of the sealing cavity 32 away from the sealing bolt 38 is connected to the outside of the sealing pipe 31 through the air outlet groove 36. Under normal circumstances, the sealing disc 34 slides away from the sealing bolt 38 by the pressure of the hydraulic oil in the sealing cavity 32.

[0040] In this embodiment, the hydraulic oil serves as a power transmission medium, and the movement of the sealing disc 34 is converted into a stable hitting force of the cutting tooth 11. Under normal circumstances, the pressure of the hydraulic oil keeps the sealing disc 34 in a certain position. When the driving block 9 pushes the pad plate 7 to compress the hydraulic oil, the hydraulic oil stores energy. After the driving block 9 is separated from the pad plate 7, the hydraulic oil releases energy to quickly reset the sealing disc 34, driving the cutting tooth 11 to hit the coal gangue powerfully. The air outlet groove 36 balances the air pressure inside and outside the sealing pipe 31, preventing the sealing pipe 31 from affecting the movement of the sealing disc 34 due to air pressure problems, and ensuring the stability and reliability of the entire crushing process.

[0041] The working principle and use process of the utility model: when installing, the portal frame 1 is fixed outside the belt conveyor, and the tip of the cutting tooth 11 faces the input end of the belt conveyor, the cutting tooth 11 is located at 50MM above the belt conveyor belt, when the coal gangue moves at high speed through the belt conveyor, it will directly impact the surface of the cutting tooth 11, and the strong impact force and cutting force act on the cutting tooth 11, so a part of the large coal gangue that is easy to break will be broken into small pieces, and the coal gangue that is not directly broken will stay at the tip position of the cutting tooth 11, and by starting the motor 10, the motor 10 drives the driving block 9 to rotate through the driving shaft 8, the driving block 9 pushes the base plate 7 to drive the sliding column 4 to slide away from the driving block 9 through the abutting of the steel ball 91 and the surface of the base plate 7, the sliding column 4 drives the sealing disc 34 to slide to the left through the connecting rod 35, and the hydraulic oil in the sealing cavity 32 is compressed, the hydraulic oil in the sealing cavity 32 enters the sealing groove 33, since the sealing cavity 32 and the sealing groove 33 are in a sealed state, when the driving shaft 8 drives the steel ball 91 to rotate and separate from the surface of the base plate 7, due to the strong pressure in the sealing cavity 32, the sealing disc 34 slides to the right instantaneously, the sealing disc 34 drives the sliding column 4 and the cutting tooth 11 to slide through the connecting rod 35, so that the tip of the cutting tooth 11 hits the surface of the coal gangue quickly and powerfully, through the continuous rotation of the steel ball 91 and the continuous hitting of the cutting tooth 11, the coal gangue can be broken, and the broken coal gangue is finally conveyed out through the belt conveyor.

[0042] The above is only the preferred embodiment of the utility model, and does not limit the utility model in other forms, and any skilled person in the art can change or modify the above disclosed technical content into equivalent embodiments with equivalent changes. However, any simple modification, equivalent change and modification of the above embodiments according to the technical essence of the utility model still belongs to the protection scope of the technical scheme of the utility model.

Claims

1. A breaking device for an integrated anchor excavating machine, comprising a portal frame (1), characterized in that: The bottom center of the gantry (1) is provided with a feeding slot (2), the inside of the gantry (1) is equidistantly provided with a crushing assembly (3), the output end of the crushing assembly (3) is fixedly connected with a sliding column (4), the inside of the sliding column (4) is penetrated and connected with a limiting rod (6), the inside of the gantry (1) is provided with a sliding groove (5), the outer surface of the gantry (1) is fixedly provided with a motor (10), the output end of the motor (10) is fixedly connected with a driving shaft (8), the outer surface of the driving shaft (8) is equidistantly fixedly connected with a driving block (9), the inside of the sliding column (4) is fixedly connected with a cutting tooth (11).

2. The crushing device for the combined excavating and anchoring machine according to claim 1, characterized in that: The crushing assembly (3) comprises a sealing pipe (31) which is equidistantly fixedly connected in the inside of the gantry (1), the inside of the sealing pipe (31) is provided with a sealing cavity (32) and a sealing groove (33), the inside of the sealing cavity (32) is communicated with the inside of the sealing groove (33), the inside of the sealing cavity (32) is sealingly and slidably connected with a sealing disc (34), the surface center of the sealing disc (34) close to the sliding column (4) is fixedly connected with a connecting rod (35), the end face of the connecting rod (35) away from the sealing disc (34) is fixedly connected on the surface of the sliding column (4), the surface of the sliding column (4) away from the connecting rod (35) is fixedly connected with a backing plate (7), the surface of the sealing pipe (31) close to the sliding column (4) is equidistantly provided with an air outlet groove (36), the inside center of the sealing pipe (31) is fixedly connected with a feeding pipe (37) which is communicated with the inside of the sealing cavity (32), the inside of the feeding pipe (37) away from the sealing cavity (32) is sealingly and screwedly connected with a sealing bolt (38).

3. The breaking device for the combined excavating and anchoring machine according to claim 2, characterized in that: The surface of the driving block (9) is arc-shaped, the inside of the driving block (9) is equidistantly movably provided with a steel ball (91), the surface of the steel ball (91) away from the driving shaft (8) extends to the outside of the driving block (9), the surface of the backing plate (7) close to the driving shaft (8) is arc-shaped, and the surface of the steel ball (91) is rollingly connected with the surface of the backing plate (7).

4. The crushing device for the combined excavating and anchoring machine according to claim 1, characterized in that: The outer surface of the driving shaft (8) is fixedly provided with a bearing at both ends, and the outer ring of the bearing is fixedly connected in the inside of the gantry (1).

5. The crushing device for the combined excavating and anchoring machine according to claim 1, characterized in that: The surface of the sliding column (4) is provided with a sliding groove matched with the limiting rod (6), the sliding column (4) is slidably connected with the outer surface of the limiting rod (6) through the sliding groove, and the sliding column (4) and the backing plate (7) are slidably connected in the inside of the sliding groove (5).

6. The crushing device for the combined excavating and anchoring machine according to claim 2, characterized in that: The driving shaft (8) and the driving block (9) are rotatably connected in the inside of the sliding groove (5), and one end of the connecting rod (35) away from the sealing disc (34) extends to the inside of the sliding groove (5).

7. The breaking device for the combined excavating and anchoring machine according to claim 2, characterized in that: One end of the sealing pipe (31) away from the connecting rod (35) extends to the outer surface of the gantry (1), and the sealing bolt (38) is rotatably connected on the outside of the gantry (1).

8. The breaking device for the combined excavating and anchoring machine according to claim 2, characterized in that: The inside of the sealing cavity (32) is filled with hydraulic oil, and the end of the sealing cavity (32) far from the sealing bolt (38) is connected with the outside of the sealing tube (31) through the air outlet groove (36). Under normal circumstances, the sealing disc (34) slides away from the sealing bolt (38) by the pressure of the hydraulic oil in the sealing cavity (32).

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