Noise and vibration reduction device adaptive to edge treatment

Abstract

The invention discloses a noise reduction and vibration reduction device adaptive to edge treatment, relates to the field of intelligent coal mining, and aims to solve the problems that a chute structure is easily damaged, the service life of the chute is influenced, large noise and vibration are accompanied, and the service life of the chute is influenced due to the fact that impact of materials on the chute in the high-fall transportation process is large. The device comprises a feeding hopper, the lower portion of the feeding hopper is communicated with a pipe groove, the pipe groove is fixedly connected with the feeding hopper through a bolt, the inner side of the feeding hopper is fixedly connected with a material blocking plate, a buffer frame is arranged below the material blocking plate, the buffer frame is located in an inner cavity of the pipe groove, and the material blocking plate is fixedly connected with the inner side of the pipe groove. A buffer frame is arranged below the feeding hopper, the buffer frame inclines downwards, a discharging hopper is arranged below the buffer frame, the feeding hopper and the discharging hopper are both vertically arranged, the pipe groove is obliquely arranged, the discharging hopper is located on the right side of the feeding hopper, and the discharging hopper is rotationally connected with a discharging roller. The acting force between materials and the pipe groove is reduced, the overall service life of the pipe groove is prolonged, and noise and vibration are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of intelligent coal mining, in particular to a noise reduction and vibration reduction technology adapted to edge processing. BACKGROUND

[0002] A chute generally refers to a groove on the ground for transporting things from high to low, with a smooth inner surface, and things can automatically slide down. As a simple and commonly used material conveying equipment, the chute is widely used in various scenes in industrial production.

[0003] However, the traditional chute has many problems in the process of material conveying. First, when the material falls into the chute from a high place, due to the large drop, the material impacts the bottom of the chute at high speed, and the instantaneous impact force can reach 5-10 times the weight of the material, which causes the lining plate in the traditional chute to crack and the weld to fail. This not only damages the structure of the chute and shortens its service life, but also converts impact energy into high-frequency vibration and noise (up to more than 100 decibels), which not only worsens the working environment, but also interferes with the precision components of adjacent equipment through mechanical conduction.

[0004] In coal mining operations, modern equipment has integrated edge processing functions (such as intelligent sorting, real-time monitoring, etc.), which rely on high-precision sensors and stable mechanical structures. However, the intense vibration generated by the chute can be transmitted to the main body of the coal mining equipment, which may interfere with the signal collection of optical or pressure sensors, cause edge recognition deviation, and affect sorting accuracy. At the same time, long-term vibration can easily cause the fasteners of the equipment to loosen, causing the positioning of the integrated modules to shift and reducing processing efficiency. In some extreme cases, vibration may trigger the self-protection mechanism of the equipment, forcing it to shut down for maintenance and affecting production continuity.

[0005] In summary, in the context of intelligent coal mining, the impact, vibration, and control defects of the traditional chute are not just local problems, but directly threaten the stability of the entire production system.

[0006] Therefore, there is an urgent need for a new chute technology that can effectively buffer impact, suppress vibration, and optimize material guidance to meet the operational needs of highly integrated equipment. SUMMARY

[0007] In view of the above situation, in order to overcome the defects of the prior art, the present application provides a noise reduction and vibration reduction device adapted to edge processing, which effectively solves the problem of large impact of material on the chute during high-drop transportation, accompanied by large noise and vibration affecting the stability of the supporting intelligent production equipment.

[0008] To achieve the above purpose, the present application provides the following technical solutions:

[0009] The utility model provides a kind of noise reduction damping device suitable for edge processing, including feed hopper, which is communicated with pipe groove below, the pipe groove is connected with the feed hopper by bolt, the inside of the feed hopper is fixedly connected with baffle, the baffle is equipped with buffer bracket below, the buffer bracket is located in the inner chamber of the pipe groove, the buffer bracket is inclined downward, the buffer bracket is equipped with discharge hopper below, the feed hopper and the discharge hopper are vertically placed, the pipe groove is placed obliquely, the discharge hopper is located in the right side of the feed hopper, the discharge hopper is rotatably connected with discharging roller;

[0010] The buffer bracket includes a buffer plate, a damping member is fixedly connected to the buffer plate, an angle adjusting plate is slidably connected to the damping member, and the angle adjusting plate is rotatably connected to the pipe groove.

[0011] Preferably, the damping member includes a support rod, the support rod is fixedly connected to the buffer plate, a guide hole is provided on the angle adjusting plate for the support rod to slide, a limiting piece is fixedly connected to the support rod below the angle adjusting plate, and a damping spring is slidably connected to the support rod above the angle adjusting plate.

[0012] Preferably, a sliding bracket is fixedly connected to the feed hopper, the sliding bracket is vertically arranged with the buffer bracket, and the sliding bracket is provided with a plurality of discharge grooves that are equally spaced.

[0013] Preferably, a sliding block is hingedly connected to the lower end of the adjusting rod, a sliding groove is provided in the pipe groove for the sliding block to slide, the sliding block is located on the outside of the pipe groove, a fixed block is slidably connected to the sliding block, and the fixed block is fixedly connected to the pipe groove.

[0014] Preferably, a guide rod is fixedly connected to the sliding block, the guide rod is slidably connected to the sliding block, an adjusting screw is threadedly connected to the sliding block, and the adjusting screw is rotatably connected to the fixed block.

[0015] Preferably, the adjusting rod is a hydraulic telescopic rod.

[0016] Preferably, the pipe groove includes a first pipe body and a second pipe body, the first pipe body is fixedly connected to the second pipe body, a buffer block is fixedly connected to the first pipe body, a sound-absorbing block is fixedly connected to the outside of the second pipe body, a hinge is installed between the second pipe body and the discharge hopper, and the other side of the second pipe body and the discharge hopper is fixedly connected by bolts.

[0017] Preferably, the discharging roller includes two oppositely rotating discharging shafts, a lever is fixedly connected to each discharging shaft, and the levers on the two discharging shafts are staggered.

[0018] Preferably, two symmetrical baffles are fixedly connected in the discharge hopper, and the baffles are located outside the discharging shaft.

[0019] Compared with the prior art, the present application has the following outstanding advantages:

[0020] The present application is provided with a buffer frame at the connection between the feeding hopper and the pipe chute, the buffer frame is obliquely arranged below the feeding hopper, the falling material first contacts the buffer frame, and the buffer frame bears the impact force of the material, thereby reducing the damage of the material to the chute and ensuring the service life of the chute.

[0021] In the present application, the buffer frame is provided with a buffer plate and a damping member, after receiving the downward impact force, the damping member is appropriately compressed, the impact force received by the buffer plate is absorbed through the damping member, thereby improving the impact resistance of the buffer plate, and at the same time, through the assembly, the vibration after the collision of the buffer plate is reduced, the noise and vibration generated after the material falls are reduced, thereby improving the stability of the integrated edge processing intelligent production equipment used in conjunction. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 It is a whole forward structure schematic view of the noise reduction and vibration reduction device in the present application.

[0023] Figure 2 It is a whole axial structure schematic view of the noise reduction and vibration reduction device in the present application.

[0024] Figure 3 It is a feeding degree and pipe chute forward cross-sectional structure schematic view in the present application.

[0025] Figure 4 It is a buffer frame bottom end structure schematic view in the present application.

[0026] Figure 5 It is an angle adjusting plate structure schematic view in the present application.

[0027] Figure 6 It is a slider connecting structure schematic view in the present application.

[0028] Figure 7 It is a discharge hopper connecting structure schematic view in the present application.

[0029] In the drawing, 1 is a feeding hopper, 2 is a pipe chute, 201 is a first pipe body, 202 is a second pipe body, 203 is a buffer block, 204 is a sound-absorbing block, 3 is a material blocking plate, 4 is a buffer frame, 401 is a buffer plate, 402 is an angle adjusting plate, 403 is an adjusting rod, 404 is a supporting rod, 405 is a guide hole, 406 is a limiting sheet, 407 is a damping spring, 5 is a discharge hopper, 6 is a discharging roller, 601 is a discharging shaft, 602 is a push rod, 603 is a baffle, 7 is a sliding frame, 8 is a discharging chute, 9 is a sliding block, 10 is a sliding groove, 11 is a fixing block, 12 is a guide rod, and 13 is an adjusting screw rod. DETAILED DESCRIPTION

[0030] The technical solutions in the embodiments of the present application will be apparently and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments; based on the embodiments in the present application, all the other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0031] Please refer to the drawings of the embodiments in the present application Figures 1-7 The noise reduction and vibration reduction device suitable for edge processing provided in the embodiments includes a feeding hopper 1, a pipe groove 2 in communication below the feeding hopper 1, the pipe groove 2 being fixedly connected with the feeding hopper 1 through bolts, a material blocking plate 3 fixedly connected inside the feeding hopper 1, a buffer frame 4 provided below the material blocking plate 3, the buffer frame 4 being located in the inner cavity of the pipe groove 2, the buffer frame 4 being downwardly inclined, a discharging hopper 5 provided below the buffer frame 4, the feeding hopper 1 and the discharging hopper 5 being vertically placed, the pipe groove 2 being placed obliquely, the discharging hopper 5 being located at the right side of the feeding hopper 1, and the discharging hopper 5 being rotatably connected with a discharging roller 6.

[0032] The feeding hopper 1, the pipe groove 2 and the discharging hopper 5 are placed in the order from top to bottom, both ends of the pipe groove 2 have two vertical structures, and the middle part of the pipe groove 2 is an oblique structure. Through the oblique placement of the pipe groove 2, on the one hand, the material can slide obliquely under the action of gravity, and on the other hand, the pipe groove 2 can avoid the generation of excessive impact force when the material falls vertically, reduce the collision of the material in the pipe groove 2 on the pipe groove 2, and avoid the damage of the internal structure of the pipe groove 2. The vertical structure at the upper end of the pipe groove 2 is connected with the feeding hopper 1 through flange bolts. The feeding hopper 1 is a reversed funnel structure. The funnel structure of the feeding hopper 1 facilitates the filling of the material into the feeding hopper 1. The material in the feeding hopper 1 contacts the buffer frame 4 under the action of gravity. After the buffer frame 4 contacts the material, the buffer frame 4 reduces the downward impact force of the material through the reaction force of the buffer frame 4 on the material, so that the material enters the pipe groove 2 along the gap on the upper side of the buffer frame 4, thereby reducing the impact force of the material on the pipe groove 2 and the noise and vibration generated by the collision of the material. Then, the material enters the discharging hopper 5 under the guidance of the pipe groove 2. The discharging roller 6 at the discharging hopper 5 controls the falling speed of the material. At the same time, through the rotation of the discharging roller 6 in the discharging hopper 5, the accumulation and blockage of the material at the discharging hopper 5 can be avoided, and the smooth falling of the material can be ensured.

[0033] The buffer frame 4 includes a buffer plate 401, a damping member fixedly connected on the buffer plate 401, an angle adjusting plate 402 slidably connected with the damping member for supporting the damping member, the angle adjusting plate 402 being rotatably connected with the pipe groove 2 above, and an adjusting rod 403 hingedly connected below the angle adjusting plate 402.

[0034] As Figure 3 shown, the buffer frame 4 is located in the pipe groove 2, the buffer plate 401 in the buffer frame 4 is placed obliquely, the inclination angle of the buffer plate 401 is less than the inclination of the pipe groove 2, and the gap between the upper end of the buffer plate 401 and the inner cavity of the pipe groove 2 is the channel for the material to move downwardly to the pipe groove 2. The angle adjusting plate 402 below the buffer plate 401 provides a stable support platform for the buffer plate 401. The angle adjusting plate 402 is welded on the inner cavity of the pipe groove 2. A damping member is installed between the angle adjusting plate 402 and the buffer plate 401. The damping member has elastic potential energy on the buffer plate 401. After the buffer plate 401 is impacted downwardly, the damping member absorbs part of the impact force. The damping member is located between the buffer plate 401 and the angle adjusting plate 402. The material blocking plate 3 above the buffer plate 401 avoids the material from entering between the buffer plate 401 and the angle adjusting plate 402, so as to ensure that the damping member has a free extension amount. Further, in order to improve the adjusting capacity of the buffer frame 4 in the pipe groove 2, the angle adjusting plate 402 can adjust the placing angle of the buffer plate 401. After the angle of the angle adjusting plate 402 changes, the size of the channel formed by the upper end of the angle adjusting plate 402 and the inner cavity of the pipe groove 2 also changes. In this way, the flow rate of the material into the pipe groove 2 can be adjusted, so that the chute device has flexible adjusting capacity.

[0035] As Figure 4 and Figure 5 shown, the guide hole 405 is a stepped hole. The damping member is composed of a supporting rod 404 and a damping spring 407 sleeved on the supporting rod 404. The damping spring 407 has an upward force on the buffer plate 401. The end of the supporting rod 404 is provided with a limiting piece 406. The diameter of the limiting piece 406 is greater than the diameter of the guide hole 405. Under the action of the limiting piece 406, the supporting rod 404 is prevented from being separated from the guide hole 405. Part of the damping spring 407 is located in the guide hole 405. In this way, the damping spring 407 with a longer length can be selected between the buffer plate 401 and the angle adjusting plate 402, so as to improve the damping effect of the damping spring 407 on the buffer plate 401.

[0036] The upper end of the angle adjusting plate 402 is hinged to the inside of the pipe groove 2. The lower part of the angle adjusting plate 402 is hinged to an adjusting rod 403. The lower end of the adjusting rod 403 is hinged to a sliding block 9, as Figure 3As shown, when the slider 9 moves upward, the slider 9 mobilizes the left side of the adjusting rod 403 to move upward, and after the left end of the adjusting rod 403 moves upward, the right end of the adjusting rod 403 drives the angle adjusting plate 402 to flip downward, thereby increasing the passage above the buffer plate 401. Conversely, when the slider 9 slides downward, the buffer plate 401 rotates upward, thereby reducing the passage above the buffer plate 401. The pipe groove 2 has a sliding groove 10 for the slider 9 to slide, and the slide and guide rod 12 limits the movement of the slider 9. After the slider 9 slides downward to the limit position, the adjusting rod 403 and the angle adjusting plate 402 are in a vertical distribution state. The movement and fixation of the slider 9 are driven by the adjusting screw 13. The adjusting screw 13 is connected to a motor, which is located outside the pipe groove 2. The motor drives the adjusting screw 13 to rotate in different directions, thereby driving the movement of the slider 9. The slider 9 and the sliding groove 10 are located on the back of the pipe groove 2, and the sliding groove 10 is located below the buffer plate 401. After the material passes through the buffer plate 401, the material falls downward along the pipe groove 2 from the right side of the sliding groove 10.

[0037] Further, the adjusting rod 403 can be a hydraulic telescopic rod, which adjusts the length of the adjusting rod 403 through a hydraulic system. By changing the length of the adjusting rod 403, the inclination angle of the buffer plate 401 is adjusted, and the material discharge speed in the pipe groove 2 is changed.

[0038] The feeding hopper 1 is provided with a sliding carriage 7, and the included angle between the sliding carriage 7 and the buffer frame 4 is between sixty degrees and ninety degrees. The sliding carriage 7 is located on the opposite surface of the buffer frame 4, and the sliding carriage 7 is provided with a feeding chute 8. Figure 3 As shown, the sliding carriage 7 is welded by multiple steel pipes, and when the material falls, the sliding carriage 7 can block the material between the buffer frames 4, reducing the impact force of the material downward. The welded pipes on the sliding carriage 7 are all cylindrical structures, which have better impact resistance. The feeding chute 8 on the sliding carriage 7 can screen small particles of material and preliminarily slow down large blocks of material.

[0039] The pipe groove 2 is formed by splicing and fixing two parts of the first pipe body 201 and the second pipe body 202, the first pipe body 201 is connected with the feeding hopper 1, the second pipe body 202 is connected with the discharging hopper 5, the buffer frame 4 is located in the first pipe body 201, the upper side of the inner cavity of the first pipe body 201 is connected with the buffer block 203, the buffer block 203 is a triangular prism structure, one side edge of the buffer block 203 is opposite to the buffer frame 4, when the material rolls down along the buffer frame 4, the material will act on the buffer block 203 under the action of inertia, the buffer block 203 slows down the falling material, the thickness of the pipe groove 2 side edge is increased, so that the overall life of the pipe groove 2 is improved, the noise and vibration are reduced, and the noise and vibration outside the device are reduced; the second pipe body 202 is fixedly connected with the sound-absorbing block 204, the sound-absorbing block 204 is located on the outside of the second pipe body 202, under the blockage of the buffer block 203, the falling material acts on the left side of the second pipe body 202 after colliding with the buffer block 203, the sound-absorbing block 204 installed on the outside of the left side of the second pipe body 202 can have a better sound-absorbing effect, the sound-absorbing block 204 has an inner groove shell structure, the inside is filled with polyurethane sound-absorbing cotton, and the sound-absorbing block 204 is connected with the second pipe body 202 through bolts.

[0040] As shown in Figure 7 The second pipe body 202 and one side of the discharging hopper 5 are provided with a hinge, the two can rotate at the position of the hinge, and the other three side edges are fixed through bolts. Through the cooperation of the hinge and the bolt, the second pipe body 202 and the discharging hopper 5 can be disassembled and installed. When the discharging hopper 5 is not needed to control the discharging flow rate, the discharging hopper 5 is turned to one side of the second pipe body 202. When the discharging hopper 5 needs to control the flow rate, the discharging hopper 5 can be moved below the second pipe body 202. In addition, the turning connection of the discharging hopper 5 can expose the discharging roller 6 in the discharging hopper 5, so that the subsequent maintenance work on the discharging roller 6 is facilitated.

[0041] The discharging roller 6 comprises two parallel discharging shafts 601 (with a spacing of 150 mm), each shaft is welded with six circumferentially distributed shifting rods 602, the double-shaft shifting rods 602 are distributed with an overlap of 30°, and the inner wall of the discharging hopper 5 is symmetrically welded with a baffle 603.

[0042] The operation process of the noise reduction and vibration reduction device adapted to edge processing formed by the above scheme is as follows.

[0043] The noise reduction and vibration reduction device adapted to edge processing is deployed in a coal mining site in actual application, and can be used with intelligent production equipment integrated with edge processing functions (such as intelligent sorting and real-time monitoring).

[0044] When the coal mining operation is carried out, the coal falls into the feeding hopper 1, hits the buffer plate 401 after being preliminarily decelerated by the slide frame 7 and the baffle plate 3, the impact force of the material on the buffer plate 401 drives the supporting rod 404 to compress the damping spring 407, part of the energy of the material is absorbed by the damping spring 407, then the material enters into the pipe groove 2 along the buffer plate 401 under the action of gravity, the material in the pipe groove 2 is decelerated again after colliding with the buffer block 203, and the moving track of the material is changed, then the material enters into the discharge hopper 5 from below the pipe groove 2, the pushing rod 602 of the discharging roller 6 in the discharge hopper 5 pushes the material to fall uniformly; when the buffer angle needs to be adjusted: the adjusting screw 13 is rotated to drive the sliding block 9 to displace, or the length of the adjusting rod 403 is expanded or contracted to drive the angle adjusting plate 402 to rotate around the hinge shaft, so as to change the angle of the buffer plate 401.

[0045] As can be seen from the above, in the scheme of the present application, the buffer frame is provided with a buffer plate and a damping member, after receiving the downward impact force, the damping member is appropriately compressed, the impact force received by the buffer plate is absorbed by the damping member, so as to improve the impact resistance of the buffer plate, at the same time, through the assembly, the vibration occurring after the buffer plate collides is reduced, the noise and vibration generated after the material falls are reduced, so as to improve the stability of the intelligent production equipment integrated with the edge processing.

[0046] Finally, it should be noted that: the above only describes the preferred embodiments of the present application and is not used to limit the present application, although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, the technical solutions recorded in the foregoing embodiments can be modified, or some technical features can be replaced, any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A noise reduction and vibration reduction device adapted for edge processing, characterized in that: The invention comprises a feed hopper (1), wherein a pipe groove (2) is connected to the bottom of the feed hopper (1), the pipe groove (2) and the feed hopper (1) are fixedly connected by bolts, a baffle plate (3) is fixedly connected to the inside of the feed hopper (1), a buffer frame (4) is provided below the baffle plate (3), the buffer frame (4) is located in the inner cavity of the pipe groove (2), the buffer frame (4) is tilted downward, and a discharge hopper (5) is provided below the buffer frame (4), the feed hopper (1) and the discharge hopper (5) are both placed vertically, the pipe groove (2) is placed obliquely, the discharge hopper (5) is located on the right side of the feed hopper (1), and the discharge hopper (5) is rotatably connected to a discharge roller (6); The buffer frame (4) comprises a buffer plate (401), a damping member is fixedly connected to the buffer plate (401), an angle adjustment plate (402) supporting the damping member is slidably connected to the damping member, the angle adjustment plate (402) is rotatably connected to the pipe groove (2) at the top, and an adjustment rod (403) is hinged at the bottom of the angle adjustment plate (402).

2. The noise reduction and vibration reduction device adapted for edge processing according to claim 1, characterized in that: The damping member comprises a support rod (404), the support rod (404) is fixedly connected to the buffer plate (401), the angle adjustment plate (402) is provided with a guide hole (405) for the support rod (404) to slide, a limiting plate (406) is fixedly connected to the support rod (404) below the angle adjustment plate (402), and a damping spring (407) is slidably connected to the support rod (404) above the angle adjustment plate (402).

3. The noise reduction and vibration reduction device adapted for edge processing according to claim 1, characterized in that: A slide (7) is fixedly connected to the feed hopper (1), the slide (7) is vertically arranged with the buffer frame (4), and the slide (7) is provided with a plurality of discharge chutes (8) distributed at equal intervals.

4. The noise reduction and vibration reduction device adapted for edge processing according to claim 1, characterized in that: The lower end of the regulating rod (403) is hinged with a slider (9), and a slide groove (10) for the slider (9) to slide is provided in the tube groove (2). The slider (9) is located outside the tube groove (2). The slider (9) is slidably connected to a fixed block (11), and the fixed block (11) is fixedly connected to the tube groove (2).

5. The noise reduction and vibration reduction device adapted for edge processing according to claim 4, characterized in that: The slider (9) is fixedly connected with a guide rod (12), the guide rod (12) is slidably connected to the slider (9), the slider (9) is threadedly connected with an adjusting screw (13), and the adjusting screw (13) is rotatably connected to the fixed block (11).

6. The noise reduction and vibration reduction device adapted for edge processing according to claim 4, characterized in that: The adjusting rod (403) is a hydraulic telescopic rod.

7. The noise reduction and vibration reduction device adapted for edge processing according to claim 1, characterized in that: The tube trough (2) comprises a first tube body (201) and a second tube body (202), wherein the first tube body (201) is fixedly connected to the second tube body (202), a buffer block (203) is fixedly connected inside the first tube body (201), a silencer block (204) is fixedly connected to the outside of the second tube body (202), a hinge is installed between the second tube body (202) and the discharge hopper (5), and the second tube body (202) and the other side of the discharge hopper (5) are fixedly connected by bolts.

8. The noise reduction and vibration reduction device adapted for edge processing according to claim 1, characterized in that: The blanking roller (6) comprises two blanking shafts (601) that rotate relative to each other. A shifting rod (602) is fixedly connected to the blanking shaft (601). The shifting rods (602) on the two blanking shafts (601) are staggered.

9. The noise reduction and vibration reduction device adapted for edge processing according to claim 8, characterized in that: Two symmetrically distributed baffles (603) are fixedly connected to the discharge hopper (5), and the baffles (603) are located outside the discharge shaft (601).

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