Abrasive dust collecting and dust removing device for brake pad machining

Abstract

The invention relates to an abrasive dust collection and dust removal device, in particular to an abrasive dust collection and dust removal device for brake pad machining. A mounting rack is arranged on the front side of the frame body; the protective cover shell is arranged on the frame body and is used for sealing the top and the rear part of the frame body; and the two dust and chip flow dividing pieces are installed on the frame body and comprise the first dust and chip flow dividing piece and the second dust and chip flow dividing piece, and the first dust and chip flow dividing piece and the second dust and chip flow dividing piece are connected through a middle connecting pipe and communicate with each other. Coarse and fine particles are subjected to inertial grading separation through the dust and scrap flow dividing pieces, scraps are efficiently settled and collected through a zigzag channel in the dust removal settling box, meanwhile, a negative pressure circulating system is formed in the dust removal settling box and the double dust and scrap flow dividing pieces through the closed-loop backflow pipe, and mixed scrap airflow is subjected to multiple times of superposition treatment in the settling channel; and finally, purified airflow is directionally discharged through a confluence outlet pipe, so that the industrial requirements of dust resource recycling, standard purification of fine particles and low-cost continuous operation are met.

Description

TECHNICAL FIELD

[0001] The present application relates to a grinding dust collection and dust removal device, in particular to a grinding dust collection and dust removal device for brake pad processing. BACKGROUND

[0002] A large amount of dust and grinding dust is generated during brake pad processing (such as cutting and grinding), which contains mixed particles of resin, metal fiber and inorganic filler. Such particles have a wide particle size distribution (micron to millimeter), and are easily charged and agglomerated due to high processing temperature. The dust generated by high-speed cutting and grinding process has the characteristics of high instantaneous concentration and fast diffusion, which needs to be quickly captured and efficiently separated to avoid polluting the workshop environment, damaging the precision of equipment and threatening the health of operators.

[0003] The existing mainstream dust removal schemes have multiple defects due to the limitations of their technical principles: for example, although the traditional cyclone separator can separate coarse particles by centrifugal force, it has insufficient capture efficiency for fine dust (particle size < 10 μm), and is prone to blockage due to dust accumulation on the inner wall under high concentration conditions, requiring frequent shutdown for cleaning; the scheme of combining negative pressure direct discharge with a spray tower can quickly discharge dust-containing gas, but the unseparated dust directly enters the atmosphere or water, causing environmental pollution, and the sludge generated by spraying needs secondary treatment, significantly increasing energy consumption and operation and maintenance costs; and the settling chamber structure relying on gravity settling has low separation efficiency and large floor area, and fine particles are suspended for a long time and are easily disturbed by air flow, resulting in secondary dust raising, which is difficult to meet the continuous production requirements

[0004] In summary, the existing technologies generally have systematic defects such as fragmented classification capability (incoordination of coarse / fine particle separation), energy efficiency and environmental protection imbalance (high energy consumption, direct dust discharge or sludge pollution), and low system reliability (structure prone to blockage, frequent maintenance), which are difficult to adapt to the processing requirements of brake pad processing for dust resource recovery, fine particle purification compliance and low-cost continuous operation. SUMMARY

[0005] The present application aims to solve the technical problems existing in the prior art, and provides a grinding dust collection and dust removal device for brake pad processing.

[0006] The application discloses a dust collection and removal device for brake pad machining, which comprises a frame body provided with a mounting rack on the front side, a protective cover arranged on the frame body to close the top and rear part of the frame body, dust and debris shunting members installed on the frame body, two dust and debris shunting members, namely dust and debris shunting member one and dust and debris shunting member two, the dust and debris shunting member one and the dust and debris shunting member two being connected through a middle connecting pipe and being in communication with each other, a tapered pipe embeddedly arranged at one end of an air inlet in the dust and debris shunting member, a push flow pipe fixedly arranged on the dust and debris shunting member one and connected with one end of the tapered pipe, an air generating member arranged on the push flow pipe away from the one end of the tapered pipe, air generated by the air generating member being blown to the push flow pipe, a bearing seat installed on the air generating member away from the push flow pipe, the bearing seat being composed of a mounting seat, a bearing and a transmission shaft, one end of the transmission shaft being connected with the bearing, and the other end of the transmission shaft being connected with the air generating member, a negative pressure suction head arranged at the middle section of the push flow pipe, one end of the negative pressure suction head being connected with the space inside the push flow pipe and being in communication, the air flow in the push flow pipe generating suction negative pressure at the other end of the negative pressure suction head when passing through, a dust removal and sedimentation tank installed in the frame body, mixed dust and debris air flows in the dust and debris shunting member one and the dust and debris shunting member two being transmitted into the dust removal and sedimentation tank to perform dust and debris deposition and separation, and a dust and debris collecting frame slidably arranged at the lower part of the dust removal and sedimentation tank, the dust and debris collecting frame and the dust removal and sedimentation tank forming a closed space, and the dust and debris collecting frame being used for collecting the separated and deposited dust and debris in the dust removal and sedimentation tank.

[0007] As a further improvement of the scheme, the dust removal and sedimentation tank comprises a tank body fixedly arranged in the frame body, an opening being arranged at the lower part of the tank body, a partition plate installed in the tank body, a fixed frame fixedly installed at the opening at the lower part of the tank body, the bottom of the fixed frame being in sliding contact with the top of the dust and debris collecting frame, a slotted plate fixedly arranged at the upper part of the fixed frame, the slotted plate being used for separating the space between the tank body and the dust and debris collecting frame, and the space inside the tank body being divided into two left and right distributed sedimentation channels through the slotted plate and the partition plate, the two sedimentation channels being a sedimentation channel one and a sedimentation channel two, the partition plate being provided with a connecting opening at one end, the two sedimentation channels being in communication through the connecting opening, a plurality of deposition and dust discharging grooves being arranged on the left and right sides of the slotted plate, two dust discharging grooves being arranged on the slotted plate, the two dust discharging grooves being located at the air outlet side of one sedimentation channel, the dust discharging grooves being arranged in an "L" shape, baffles being installed at the top of the tank body, a plurality of baffles being arranged in each sedimentation channel, the positions of the two adjacent baffles in the same sedimentation channel being staggered, the baffles forming a zigzag air flow channel in the sedimentation channel, the air flow being impacted and deflected by the inner wall of the tank body and the baffles in the sedimentation channel, the deposited dust and debris in the sedimentation channel being discharged to the dust and debris collecting frame through the slotted plate, a backflow pipe being installed on the tank body and connected with the sedimentation channel two and the middle connecting pipe at two ends, the backflow pipe being used for backflowing the air flow in the sedimentation channel two to the middle connecting pipe, and a constant pressure assembly being installed on the outside of the tank body, the constant pressure assembly being composed of a pressure control module, a pressure injection and discharge valve body and a pressure control pipe, one end of the pressure control pipe of the constant pressure assembly penetrating into the inside of the fixed frame and being in communication with the space below the slotted plate, and the constant pressure assembly being used for regulating and controlling the pressure of the space between the slotted plate and the dust and debris collecting frame.

[0008] As a further improvement of the scheme, two dust and debris shunt members are distributed around the outside of the dust removal settling tank, wherein the dust and debris shunt member comprises a connecting seat with a protruding cavity inside, a flow guide pipe installed on the frame, one end of which is fixedly connected with the connecting seat, an inner middle through pipe provided inside the flow guide pipe, one end of which extends into the protruding cavity, an annular debris conveying channel formed between the inner middle through pipe and the flow guide pipe, a flow discharge connector installed on the flow guide pipe, one end of which communicates with the debris conveying channel and the other end of which communicates with the internal space of the tank, and the flow discharge connectors on the two flow guide pipes respectively communicate with a settling channel, and the mixed debris gas flow in the debris conveying channel is conveyed into the settling channel through the flow discharge connector; wherein, the dust and debris shunt member one conveys the mixed debris gas flow into the settling channel one through the flow discharge connector, and the dust and debris shunt member two conveys the mixed debris gas flow into the settling channel two through the flow discharge connector; a middle connecting pipe is connected with the end of the inner middle through pipe of the dust and debris shunt member one, and the other end of the middle connecting pipe communicates with the tapered pipe on the dust and debris shunt member two; a flow outlet pipe is arranged at the end of the inner middle through pipe of the dust and debris shunt member two to convey the gas flow out of the device; a double-branch shunt block is installed on the upper part of the tank, which is in the same line with the flow discharge channel of the dust and debris shunt member two and the connecting port on the baffle.

[0009] As a further improvement of the scheme, the deposition debris discharge grooves distributed on the left and right sides of the slotted plate are respectively located in the two settling channels, and each deposition debris discharge groove corresponds to the position of a baffle plate, and there is a flow gap between the bottom of the baffle plate and the deposition debris discharge groove.

[0010] As a further improvement of the scheme, it further comprises a flow guide ring arranged annularly at the joint of the protruding cavity of the connecting seat and the debris conveying channel, and a plurality of flow guide notches are arranged on the flow guide ring, and a spiral protruding strip is arranged on the inner wall of the flow guide pipe and located in the debris conveying channel to guide the mixed debris gas flow in the debris conveying channel to the flow discharge connector.

[0011] As a further improvement of the scheme, it further comprises a flow guide strip arranged on the slotted plate, which is arranged in the same direction as the deposition debris discharge groove, and the number of flow guide strips is consistent with the number of deposition debris discharge grooves, one end of the flow guide strip is attached to the inner wall of the tank, and the other end of the flow guide strip is provided with an arc-shaped strip, and each flow guide strip is located on one side of a deposition debris discharge groove to smoothly guide the debris particles deposited in the settling channel into the deposition debris discharge groove.

[0012] As a further improvement of the scheme, the negative pressure suction head comprises a suction pipe connected with the push flow pipe, a rotating seat is arranged at the lower part of the suction pipe, a rotating connector is rotatably arranged on the rotating seat of the suction pipe, and a through hole is formed on the rotating seat and the rotating connector to communicate with each other, a rotating frame is rotatably arranged on the rotating connector, a clamping seat allowing clamping of the suction head is arranged at the lower end of the rotating frame, a suction hole is formed at the lower part of the clamping seat, the through hole communicates with the inside of the suction pipe, and a flexible pipe is arranged on the rotating connector, one end of the flexible pipe communicates with the through hole of the rotating connector, and the other end of the flexible pipe is connected with the suction hole of the clamping seat of the rotating frame.

[0013] As the scheme is further improved, it also includes: the angle bar is rotatably arranged in the upper part of the fixed frame, a plurality of spacing arrangements are arranged between the two adjacent angle bars, and a material falling gap exists between the two adjacent angle bars; and the vibration module is arranged on the constant pressure assembly and generates vibration during work, and the vibration is transmitted to the fixed frame through the constant pressure assembly.

[0014] As the scheme is further improved, it also includes: the driving member is installed on the bearing seat and connected with the bearing in the bearing seat, and used for driving the rotation of the transmission shaft in the bearing seat; and the hose is arranged between the tapered pipe and the push-flow pipe.

[0015] As the scheme is further improved, it also includes: the atomizer is arranged on the bearing seat and the atomizing nozzle is installed on the atomizer.

[0016] The beneficial effects of the present application are: 1. The present application separates the coarse and fine particles by the dust and debris separation member, and the dust and debris are collected in the dust and debris settling tank through the zigzag channel. At the same time, the closed loop backflow pipe forms a negative pressure circulation system between the dust and debris settling tank and the double dust and debris separation member, so that the mixed dust and debris gas flow is processed multiple times in the settling channel, and finally the purified gas flow is discharged through the confluence pipe, which meets the industrial demand of dust resource recovery, fine particle purification and low cost continuous operation.

[0017] The present application uses the guide ring and the spiral convex strip to guide the mixed dust and debris gas flow into the dust and debris transmission channel, reduces the backflow interference and eliminates the blockage hidden danger in the device.

[0018] The present application precisely controls the pressure difference between the settling channel and the dust and debris collecting frame through the constant pressure assembly, ensures the gas flow in the dust and debris settling tank to flow along the main motion direction, suppresses the gas flow to flow downward and forms the air curtain effect, combines the slotted plate structure to direct the dust and debris, avoids the blockage and secondary dust raising, and prolongs the system maintenance cycle.

[0019] The guide strip of the present application is rigidly connected and designed with an arc surface guide, which guides the dust and debris to fall into the dust and debris discharge groove. In the gas flow field, the collection process is automatically and directionally transported, the maintenance frequency is significantly reduced, and the gap cooperation between the through-flow gap and the guide strip realizes the dust and debris guidance and the gas flow negative pressure adsorption, avoiding the dust and debris blockage problem caused by the complete closure of the traditional baffle structure. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a three-dimensional structure schematic diagram of the present application.

[0021] Figure 2 It is an exploded view of the present application.

[0022] Figure 3 It is a plane section view of the dust and debris separation member of the present application.

[0023] Figure 4 It is a schematic diagram of the three-dimensional structure of the dust separation element of the present invention.

[0024] Figure 5 It is a schematic diagram of the three-dimensional structure of the drainage ring of the present invention.

[0025] Figure 6 It is a schematic diagram of the three-dimensional structure of the dust separation element and the dust collection and settling box of the present invention.

[0026] Figure 7 This is a schematic diagram of the three-dimensional structure of the dust separator and the dust collection and settling box from another perspective of the present invention.

[0027] Figure 8 It is a schematic diagram of the three-dimensional structure of the fixing frame and its upper components of the present invention.

[0028] Figure 9 It is a plan view of the internal structure of the dust removal and settling box of the present invention.

[0029] Figure 10 Schematic diagram of the airflow direction in the dust removal and settling box of the present invention.

[0030] Figure 11 It is a schematic diagram of the three-dimensional structure of the fixed frame, scattered angle strips and other components of the present invention.

[0031] Figure 12 It is a schematic diagram of the three-dimensional structure of the drive component, wind control component, hose and other components of the present invention.

[0032] The reference numbers in the figure are: 1: frame, 2: protective cover, 3: bearing seat, 4: dust diverter 1, 4001: expansion chamber, 41: dust diverter 2, 42: middle pipe, 43: flow guide pipe, 431: connecting seat, 4301: chip transmission channel, 44: inner middle pipe, 45: drainage joint, 46: drainage ring, 47: converging pipe, 4600: drainage slot, 461: spiral rib, 5: tapered pipe, 6: wind control part, 61: push flow pipe, 7: negative pressure suction head, 71: suction pipe, 72: adapter, 73: rotating frame, 74: Flexible tube, 8: Box, 81: Partition, 8101: Sedimentation channel 1, 8102: Sedimentation channel 2, 8103: Connecting port, 82: Baffle, 8201: Flow gap, 83: Double-branch diverter block, 84: Return pipe, 9: Fixed frame, 91: Constant pressure assembly, 92: Slotted plate, 9201: Deposition chip groove, 9202: Chip leakage groove, 93: Guide strip, 94: Vibration module, 95: Dispersion angle strip, 10: Chip collection frame, 11: Drive part, 111: Hose, 12: Atomizer, 121: Atomizing nozzle. DETAILED DESCRIPTION

[0033] In order to make the objects, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the specific embodiments and drawings. It should be understood that these descriptions are only exemplary and are not intended to limit the scope of the present application. In addition, in the following description, the description of well-known structures and techniques is omitted to avoid unnecessary confusion of the concept of the present application.

[0034] A kind of brake block processing dust collection and dust removal device, as shown in Figures 1-12 The frame body 1 is provided with a mounting cavity inside, and a protective cover 2 is detachably provided on the frame body by bolts. The front side of the frame body 1 is provided with a mounting bracket. In use, the device is fixedly installed at a position close to the brake block grinding or cutting station through the mounting bracket on the frame body 1. Two dust and debris shunting members for coarsely and finely screening the mixed debris in the airflow are installed on the frame body 1, which are dust and debris shunting member one 4 and dust and debris shunting member two 41, respectively. The dust and debris shunting member one 4 and the dust and debris shunting member two 41 are connected by a middle connecting pipe 42 and are in communication with each other. A push flow pipe 61 is fixedly arranged on one side of the dust and debris shunting member one 4, and the push flow pipe is in communication with the internal space of the dust and debris shunting member one 4. An air making member 6 is installed on the other end of the push flow pipe 61. The air making member 6 is composed of a shell and a push flow fan. The shell is hollow inside. The push flow fan is concentrically and rotatably arranged in the shell. The push flow pipe 61 is in communication with the internal space of the shell. When the push flow fan is driven to rotate, its direction needs to be controlled so that the airflow generated by the rotation of the push flow fan in the shell can be transmitted into the push flow pipe 61.

[0035] A bearing seat 3 is installed on the side of the shell of the air making member 6 away from the push flow pipe 61. The bearing seat 3 is composed of a mounting seat, a bearing and a transmission shaft. One end of the transmission shaft is connected with the bearing, and the other end of the transmission shaft penetrates into the shell and is connected with the push flow fan. The bearing seat 3 is used to connect a rotating driving component. The transmission shaft on the bearing seat is driven to rotate by the rotating component, thereby driving the fan to rotate and generating high-speed airflow in the push flow pipe 61. A negative pressure suction head 7 is arranged in the middle segment of the push flow pipe 61. One end of the negative pressure suction head 7 is connected with and communicates with the internal space of the push flow pipe 61, and the other end of the negative pressure suction head 7 extends into the area where the debris is generated. When the airflow passes through the push flow pipe 61, suction negative pressure is generated at the other end of the negative pressure suction head 7. The suction negative pressure will suck the debris in the brake block processing area into the internal space of the negative pressure suction head 7 and then into the airflow in the push flow pipe 61, and then into the dust and debris shunting member one 4.

[0036] Among them, as Figure 3 And Figure 4As shown, the dust shunt includes a connecting seat 431 and a flow guide pipe 43, the connecting seat 431 is provided with a stepped expansion cavity 4001, and the stepped expansion cavity 4001 is composed of multiple stepped expansion sections, one end of the flow guide pipe 43 is sealingly and fixedly connected with the connecting seat 431, an inner middle pipe 44 is arranged in the flow guide pipe 43, an inner passage of the inner middle pipe is extended into the stepped expansion cavity 4001 of the connecting seat 431 at one end of the inner middle pipe 44, and an annular dust transmission passage 4301 is formed between the outer wall of the inner middle pipe 44 and the inner wall of the flow guide pipe 43; the flow guide pipe 43 is provided with a flow discharge notch, a flow discharge connector 45 is arranged at the flow discharge notch, the flow discharge connector 45 is communicated with the dust transmission passage 4301, and is used for discharging the mixed dust gas in the dust transmission passage; the stepped expansion cavity 4001 is provided with a converging pipe 5 at the gas inlet, the converging pipe 5 is composed of an inlet gradually decreasing, a throat with a smallest cross section, and an outlet gradually increasing; the inner passage of the inner middle pipe 44 is on the same center line as the gas outlet of the converging pipe 5, and the gas will pass through the converging pipe 5 when entering the connecting seat 431 of the dust shunt;

[0037] Specifically, the connection between the negative pressure suction head 7 and the push-flow pipe 61 contains a one-way flow guide device, such as an inclined flow guide vane or a flexible sealing valve, to ensure that the airflow can only enter the push-flow pipe 61 from the outside through the negative pressure suction head 7 and cannot be blown out in the opposite direction. When the air making member 6 is started to work, a high-speed airflow is generated inside the push-flow pipe 61. In the push-flow pipe 61, the airflow speed increases while the pressure decreases, thus generating a negative pressure environment at the end of the airflow negative pressure suction head 7 connected to the push-flow pipe 61. The negative pressure suction head 7 sucks the grinding dust generated during processing into the push-flow pipe 61 and into the dust separation member 4 along with the airflow. The airway in the push-flow pipe 61 stage is straight cylindrical to ensure uniform distribution of the airflow. As the airflow enters the tapered contraction section of the tapered pipe 5, the cross-sectional area of the pipe gradually decreases, causing the airflow speed to increase rapidly. According to Bernoulli's law, the increase in airflow speed will cause the static pressure to decrease, thus generating a negative pressure effect, making the particles be dragged forward more strongly. Due to the different masses of coarse particles and fine particles, their inertias are also different under the same airflow conditions. When the airflow passes through the contraction section, the heavier coarse particles cannot follow the rapidly changing airflow direction in time due to their larger inertia, and will deviate from the mainstream path and move along the pipe wall. Fine particles, on the other hand, are more likely to change direction along with the changes in airflow due to their light mass, and continue to flow along the center. In the multi-stage expansion section, the airway gradually expands and the airflow speed slows down. At this time, the coarse particles that have deviated from the mainstream path will continue to move along the pipe wall under the action of inertia, while the fine particles will gradually return to the central area due to their smaller inertia. The angle and curvature of each expansion section are carefully designed to ensure that coarse particles can fully approach the pipe wall and eventually enter the dust removal channel 4301. Fine particles, on the other hand, continue to move along the center until they reach the airway in the inner middle pipe 44 of the dust separation member 4. The inner middle pipe 44 at the end of the dust separation member 4 is connected to the middle connecting pipe 42, which transmits the airflow mixed with fine particles out of the device to the dust separation member 41 for secondary processing of the debris. The end of the inner middle pipe 44 on the dust separation member 41 is connected to the confluence outflow pipe 47 to transmit the mixed dust airflow out of the device.

[0038] As Figure 3 and Figure 5As shown, it also includes a drainage ring 46 and a spiral ridge 461. In the connecting seat 431, the drainage ring 46 is nested in the connection point between the sudden expansion cavity 4001 of the connecting seat 431 and the chip transfer channel 4301 in an annular structure. Several drainage grooves 4600 distributed circumferentially on its outer edge extend in a contracting shape to the inner wall of the chip transfer channel 4301. The groove design can divide the high-speed airflow in the sudden expansion cavity 4001 into multiple evenly distributed tributaries, thereby avoiding the formation of local vortices in the airflow at the sudden change point of the cavity cross-section; the spiral ridge 461 is welded to the inner wall of the guide tube 43, and its spiral trajectory extends from the entrance of the chip transfer channel 4301 to the interface of the discharge joint 45; when the chip-laden airflow flows through, the continuous convex structure of the spiral ridge 461 forces the airflow in the chip transfer channel 4301 to produce a composite motion of axial spiral rotation and tangential impact: the axial velocity maintains the debris conveying momentum, and the tangential velocity throws the debris particles to the outer wall area of ​​the chip transfer channel 4301 through centrifugal force. During this process, the debris moves close to the channel wall due to inertia, and gradually gathers at the discharge joint 45 with the air flow, forming an air-chip stratified flow, guiding the debris into the discharge joint smoothly while avoiding the accumulation of debris in the chip transfer channel 4301.

[0039] Among them, a dust collection and sedimentation box is installed inside the frame 1, and the mixed chip airflow in the dust diverter 1 4 and the dust diverter 2 41 chip transfer channel 4301 will be transmitted into the dust collection and sedimentation box for debris deposition and fine dust separation; a chip collecting frame 10 is slidingly arranged at the lower part of the dust collection and sedimentation box, and the chip collecting frame 10 and the inside of the dust collection and sedimentation box form an enclosed space, and the debris separated and deposited in the dust collection and sedimentation box is collected by the chip collecting frame 10.

[0040] like Figures 6-10 As shown, the main structure of the dust collection and sedimentation box is composed of a box body 8, the lower opening of which is slidably connected to the top of the chip collection frame 10 through a fixed frame 9, and the grooved plate 92 is horizontally welded to the upper inner part of the fixed frame 9; a notch is provided at the rear of the protective cover shell 2 to allow the chip collection frame 10 to pass through, and the chip collection frame 10 can be horizontally pulled out or pushed in along the bottom of the fixed frame 9, so as to facilitate regular cleaning of deposited debris, and the interior of the box body 8 is spatially divided by the cooperation of the partition plate 81 and the grooved plate 92: the box body 8 is separated into a left and right sedimentation channel 1 8101 and a sedimentation channel 2 8102, the partition plate 81 is vertically fixed in the box body 8, and a connection port 8103 is provided at one end thereof to connect the left and right sedimentation channels 1 8101 and the sedimentation channel 2 8102 separated by the box body;

[0041] The deposition chip groove 9201 is evenly arranged on both sides of the slotted plate 92 and penetrates the plate body. Each deposition chip groove 9201 corresponds to one baffle plate 82 in position. The deposition chip groove 9201 allows the debris to naturally fall after being in contact with the baffle plate 82. On the outlet side of the two sedimentation channels, the slotted plate 92 is designed with a "L" type leakage groove 9202 to guide the debris along the groove wall to the chip collection frame 10. On the top of the box 8, a group of baffle plates 82 are installed along the extension direction of each sedimentation channel. The baffle plates 82 in the same sedimentation channel are staggered, that is, the adjacent baffle plates 82 are installed on the left and right sides of the channel respectively. When the gas flow enters the channel, it needs to continuously impact the inner wall of the box 8 and the surface of the baffle plate 82, and is forced to change the flow direction many times to form an "S" type zigzag path.

[0042] Specifically, due to the staggered arrangement of the baffle plates 82, the particles carried by the gas flow directly impact the inner wall of the box 8 or the surface of the baffle plate 82 under the action of inertia. At the same time, the inertia force generated by the sudden change of flow direction causes the debris particles to separate from the main flow of the gas flow and settle on the surface of the slotted plate 92. At the same time, the staggered arrangement of the baffle plates 82 restricts the gas flow through the "S" type flow channel to maintain a horizontal main movement trend in the sedimentation channel. The settled debris falls into the chip collection frame 10 through the deposition chip groove 9201 and the leakage groove 9202 on the slotted plate 92, and the gas flow after preliminary purification continues to flow to the next stage channel. In order to optimize the debris collection efficiency, a constant pressure assembly 91 is arranged on the outside of the box 8. The assembly is connected with the space inside the fixed frame 9 and below the slotted plate 92 through a pressure control pipe. The pressure control module is used to monitor and adjust the air pressure in the area in real time. When the space between the slotted plate 92 and the chip collection frame 10 is locally pressurized due to debris accumulation, the constant pressure assembly 91 releases excess air pressure through the injection and exhaust valve body to maintain the pressure balance between the area and the sedimentation channel. The constant pressure assembly 91 monitors the air pressure in the area between the slotted plate 92 and the chip collection frame 10 through the pressure control pipe, and adjusts the pressure in the area through the injection and exhaust valve body, so that the pressure in the area is always slightly lower than the pressure in the sedimentation channel (the difference is about 50-200 Pa). This pressure difference forces the gas flow to flow horizontally when flowing through the sedimentation channel due to the pressure gradient inside and outside the channel, rather than penetrating the deposition chip groove 9201 and the leakage groove 9202 of the slotted plate 92 into the chip collection frame 10. Even if a small amount of gas flow approaches the deposition chip groove 9201 due to inertia, it will produce an "air curtain effect" due to the low pressure environment below the groove, forming an upward recoil force to offset the downward trend, thereby ensuring that the gas flow will not enter the chip collection frame 10 through the slotted plate 92. After the debris is separated from the gas flow by gravity and inertia, it can stably slide down through the chip groove, avoiding debris retention or recoil caused by uneven air pressure.

[0043] Two dust diverters are distributed around the outside of the dust collection and settling box. One end of the discharge connector 45 on the two dust diverters is connected to the internal space of the box body 8, and the discharge connector 45 on the two dust diverters is connected to a settling channel respectively. The dust diverter 1 4 is connected to the settling channel 1 8101 through its discharge connector 45, and the discharge connector 45 of the dust diverter 2 41 is connected to the settling channel 2 8102. The two respectively direct the mixed dust airflow in the dust transfer channel 4301 into the corresponding settling channel. In the box body 8, a double-branch diverter block 83 is installed at the top near the dust diverter 2 41. Its branch flow channel is coaxially aligned with the discharge channel of the dust diverter 2 41 and the connection port 8103 on the partition 81. The function of the diverter block is to coordinate the spatial distribution of the two air flows: the air flow directly introduced from the dust diverter 1 4 into the sedimentation channel 1 8101 flows through the "S"-shaped path formed by the deflector 82, and then carries the unsettled fine particles through the connection port 81 of the partition 81. 103 enters the sedimentation channel 2 8102; at the same time, the secondary airflow introduced by the dust diverter 2 41 through the discharge joint 45 is guided by the double-branch diverter block 83 and merged with the circulating airflow in the sedimentation channel 2 8102. This layout allows the two airflows to form a unidirectional superposition in the sedimentation channel 2 8102, which not only enhances the turbulence intensity to increase the collision probability of fine particles, but also reduces the pressure fluctuations caused by the mutual interference of different airflows through the consistency of flow direction. In addition, the end of the sedimentation channel 2 8102 is connected to the middle pipe 42 through the return pipe 84. The return pipe 84 is an arc-shaped design and is driven by pressure difference. At the end of the sedimentation channel 2 8102, the airflow after the two sedimentation channels merge can be returned to the dust diverter 2 41, and the airflow is introduced into the front-end processing link to form a closed-loop circulation, further improving the dust removal rate; and the finally processed airflow is discharged through the confluence outlet pipe 47. The purified airflow in the confluence outlet pipe 47 can be directly connected to the workshop dust filter bag or dust reduction system.

[0044] like Figure 8 and Figure 9As shown, there is a flow gap between the bottom of the baffle plate 82 and the upper and lower deposition of the debris groove 9201. To further improve the efficiency of debris collection, a flow guide strip 93 is added on one side of each deposition of the debris groove 9201 of the slotted plate 92. The number of flow guide strips 93 corresponds to the number of deposition of the debris groove 9201. The flow guide strip 93 is located in the flow gap 8201. The main body of the flow guide strip 93 is arranged in parallel with the deposition of the debris groove 9201. One end of the flow guide strip 93 is tightly attached to the inner wall of the box 8 by welding or clamping. The other end of the flow guide strip 93 extends to the outside area of the other end of the deposition of the debris groove 9201 and is bent to form an arc-shaped strip. The bending direction of the arc-shaped strip is towards the central axis of the deposition of the debris groove 9201. Specifically, when the debris-containing airflow is decelerated in the settling channel due to the blocking effect of the baffle plate 82, the debris particles gradually deposit on the surface of the slotted plate 92 under the influence of gravity. At this time, the flow guide strip 93 forms a stable guide base through its rigid connection with the inner wall of the box 8. The arc-shaped strip of the flow guide strip 93 extending to the deposition of the debris groove 9201 constitutes a continuous inclined guide surface. The debris deposited on the surface of the slotted plate 92 slides along the surface of the arc-shaped strip of the flow guide strip 93. Since the center of curvature of the arc-shaped strip is biased to the outside of the deposition of the debris groove 9201, the debris is offset to the side of the deposition of the debris groove 9201 during the sliding process due to the air flow thrust, and is aligned with the inlet of the deposition of the debris groove 9201. In addition, there is a narrow gap between the flow guide strip 93 and the flow gap 8201, forming an airflow slit. When the airflow in the settling channel flows through this place, a local negative pressure area is generated due to the slit effect, which has an adsorption effect on the debris, further strengthening the directional movement of the debris to the deposition of the debris groove 9201.

[0045] As shown in Figure 1 , Figure 2 and Figure 12 , the main structure of the negative pressure suction head 7 is composed of a suction pipe 71, an adapter 72, a rotating frame 73 and a flexible pipe 74. Each component is connected through rotation and flexibility to realize multi-degree-of-freedom adjustment. The upper end of the suction pipe 71 is rigidly connected to the push flow pipe 61 through a flange, and the internal channels of the two are directly connected to transfer negative pressure airflow. The lower end of the suction pipe 71 is welded with a rotating seat, and a through hole is formed in the center as the main airflow channel. The adapter 72 is installed on the rotating seat of the suction pipe 71, and the contact surface between the two is precisely ground to form a sealing surface. At the same time, a through hole is formed in the base of the adapter 72, one end of which is communicated with the through hole of the suction pipe 71, and the other end extends to the outlet of the side wall of the adapter 72, ensuring that the airflow channel is always connected when the adapter 72 rotates 360° in the horizontal plane. The rotating frame 73 is vertically installed on the top of the adapter 72 through a bearing assembly, and its lower end extends out a U-shaped clamping seat for inserting and fixing different types of suction heads. A suction hole is formed in the center of the bottom of the clamping seat of the rotating frame 73. The flexible pipe 74 is made of corrugated silicone material, one end of which is sleeved on the air guide hole outlet of the side wall of the adapter 72, and the other end is connected to the clamping seat suction hole through the hollow shaft of the rotating frame 73.

[0046] When the rotating frame 73 swings up and down around the axis of the adapter 72, the flexible pipe 74 compensates for the relative displacement by corrugation expansion and bending deformation to avoid pipeline collapse or air leakage caused by torsion. When the system starts, the negative pressure generated by the push-flow pipe 61 is transmitted to the suction hole of the rotating frame 73 through the suction-flow pipe 71, the L-shaped air guide hole of the adapter 72 and the flexible pipe 74 in turn, forming a continuous suction force field. The debris enters the suction hole under the action of negative pressure, is transported along the inner wall of the flexible pipe 74 to the adapter 72, and then enters the dust collection cavity of the push-flow pipe 61 through the suction-flow pipe 71. In this process, the bidirectional rotation function of the adapter 72 and the rotating frame 73 allows the operator to flexibly change the spatial orientation of the suction head without adjusting the overall posture of the equipment, which is especially suitable for debris cleaning on the surface of narrow spaces or special-shaped workpieces.

[0047] As shown in Figure 11 , it also includes a dispersion angle bar 95 which is rotatably installed by being embedded into the inner wall of the fixed frame 9 at both ends of the rotating shaft. The cross section of each dispersion angle bar 95 is designed as a right-angled bar shape with the top point facing upwards. There is a certain interval distance between adjacent dispersion angle bars 95, forming a progressive dispersion channel. A vibration module 94 is arranged on the constant pressure assembly 91. When it works, the vibration generated by the vibration module 94 is transmitted to the fixed frame 9 through the constant pressure assembly 91. When the debris falls from the debris discharge groove of the slotted plate 92, the dispersion angle bar 95 passively swings under the action of the gravity of the debris. The trapezoidal cross section of the dispersion angle bar 95 makes the contact point of the debris slide along the inclined surface, generating a transverse force to break up the debris. The interval design of adjacent angle bars allows small particle size debris to directly fall through the gap, while larger debris is broken down into smaller particles under the guidance of the inclined surface of the angle bar, finally forming a ladder-shaped distribution of multi-level particle size debris. The vibration module 94 is rigidly connected to the base of the constant pressure assembly 91 by bolts. The low-frequency vibration generated by the vibration module 94 is transmitted to the rotating shaft of the dispersion angle bar 95 through the support beam of the fixed frame 9, making the dispersion angle bar 95 produce periodic slight shaking, eliminating the adhesion and aggregation of the debris with the dispersion angle bar 95.

[0048] As shown in Figure 12 , in order to match more processing scenarios, the application also includes a driving member 11 for installing on the bearing seat 3 to drive the rotation of the transmission shaft in the bearing seat 3, and a flexible pipe 111 arranged between the tapered pipe 5 and the push-flow pipe 61. The application scenarios of the driving member 11 and the flexible pipe 111 in the application are designed as follows:

[0049] When the bearing seat 3 of the application is coaxially installed with the rotating main shaft of the cutting / polishing equipment (such as the main shaft of a numerical control machine tool or the output shaft of an angle grinder), the rotating power of the equipment connected by the coupling or gear set drives the transmission shaft in the bearing seat 3, at which time the driving member 11 does not need to intervene in the use of the device, and if the bearing seat 3 is not driven by an external power, the driving member 11 needs to be connected for use; when the bearing seat 3 and the air making member 6 need to move with the cutting / polishing equipment (such as a mechanical arm, a sliding seat, etc.), and the dust and debris shunting member and the frame 1 are fixed to the equipment base, the push flow pipe 61 is connected with the dust and debris shunting member through the hose 111, and the air shaft is used for radial deflection compensation and radial deflection compensation to adapt to the movement of the equipment, so as to avoid stress concentration of rigid pipe fittings leading to leakage or rupture, in addition, if only the air flow circulation dust removal is needed (such as a static polishing table), the driving member 11 can not be installed, and the external air source (such as an air compressor) is connected to the hose 111 to drive the system to run, realizing modularization and rapid switching.

[0050] Finally, as shown in Figure 1 and Figure 12 , the atomizer 12 provided on the bearing seat 3 is also included, and the atomizing nozzle 121 is installed thereon, the atomizer 12 is fixed to the lateral extension platform of the bearing seat 3 through the fastener, and during installation and debugging, it is necessary to ensure that the atomizing range of the atomizing nozzle 121 covers the machining area of the brake pad; during machining, the atomizing nozzle 121 intermittently sprays a small amount of water mist to the grinding dust generating area, avoids excessive wetting of the machining environment, and at the same time, the micron-level water mist is uniformly attached to the surface of the grinding dust, promotes the small dust that is not captured by the negative pressure suction head 7 to gather into a group, and the water mist and the small dust and debris form agglomerates, at the same time, for the small debris retained on the machining equipment, through the agglomeration effect of the atomized droplets, the particle size of the debris is increased, under the driving of the negative pressure suction air flow, the debris can be more quickly migrated to the direction of the negative pressure suction head 7, realizes dust reduction, and improves the capture rate of the debris.

[0051] The above only describes the preferred embodiments of the application and does not limit the application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the application shall be included in the protection scope of the application.

Claims

1. A wear debris collection and dust removal device for brake pad machining, comprising a frame (1) with a mounting frame provided on the front side thereof; It is characterized by: Also includes: A protective cover shell (2) is provided on the frame (1) to seal the top and rear of the frame (1); a dust diverter is installed on the frame (1), and is provided with two dust diverter pieces, namely dust diverter piece 1 (4) and dust diverter piece 2 (41), the dust diverter piece 1 (4) and the dust diverter piece 2 (41) are connected to each other through a middle pipe (42); a convergent pipe (5) is embedded in one end of the air flow inlet in the dust diverter; a flow-pushing pipe (61) is fixedly provided on the dust diverter piece 1 (4) and is connected to one end of the convergent pipe (5); an air control piece (6) is provided on one end of the flow-pushing pipe (61) away from the convergent pipe (5), and the air flow generated by the air control piece will be blown into the flow-pushing pipe (61); a bearing seat (3) is installed on one end of the air control piece (6) away from the flow-pushing pipe (61) The side is composed of a mounting seat, a bearing and a transmission shaft, one end of the transmission shaft is connected to the bearing, and the other end of the transmission shaft is connected to the wind control member (6); a negative pressure suction head (7) is arranged in the middle section of the flow-pushing pipe (61), one end of which is connected and communicated with the internal space of the flow-pushing pipe (61), and when the air flow in the flow-pushing pipe (61) passes through, a suction negative pressure is generated at the other end of the negative pressure suction head (7); a dust collection and settling box is installed in the frame (1), and the mixed debris airflow in the dust diverter member 1 (4) and the dust diverter member 2 (41) are both introduced into the dust collection and settling box for debris deposition and fine dust separation; a chip collecting frame (10) is slidably arranged in the lower part of the dust collection and settling box, and cooperates with the dust collection and settling box to form a closed space, and the debris separated and deposited in the dust collection and settling box is collected by the chip collecting frame (10).

2. A wear debris collection and dust removal device for brake pad machining according to claim 1, characterized in that: The dust collection and settling box comprises: a box body (8) fixedly arranged in a frame body (1), wherein the lower part of the box body (8) is provided with an opening; a partition plate (81) installed in the box body (8); a fixed frame (9) fixedly installed at the lower opening of the box body (8), wherein the bottom thereof is in sliding contact with the top of the chip collecting frame (10); a grooved plate (92) fixedly arranged in the upper part of the fixed frame (9), which separates the space between the box body (8) and the chip collecting frame (10), and divides the internal space of the box body (8) into two spaces by means of the grooved plate (92) and the partition plate (81). There are sedimentation channels distributed on the left and right sides, and the two sedimentation channels are sedimentation channel 1 (8101) and sedimentation channel 2 (8102). A connection port (8103) is opened at one end of the partition plate (81), and the two sedimentation channels are connected through the connection port (8103); a plurality of deposition and chip removal grooves (9201) are opened on the left and right sides of the grooved plate (92), and two chip leakage grooves (9202) are opened on the grooved plate (92). The two chip leakage grooves (9202) are respectively located on one side of the airflow outlet of a sedimentation channel, and the chip leakage groove (9202) is "L" shaped. Layout; baffles (82), installed at the top of the box (8), each settling channel is arranged with a plurality of baffles (82), the positions of two adjacent baffles (82) in the same settling channel are staggered, and a zigzag airflow channel is formed in the settling channel through the baffles (82), the airflow collides with the inner wall of the box (8) and the baffles (82) in the settling channel and turns in the direction, and the debris deposited in the settling channel leaks down to the chip collecting frame (10) through the grooved plate (92); a return pipe (84), installed on the box (8) , its two ends are respectively connected to the sedimentation channel 2 (8102) and the middle pipe (42), and the return pipe (84) is used to return the airflow in the sedimentation channel 2 (8102) to the middle pipe (42); the constant pressure component (91) is installed on the outside of the box body (8), which is composed of a pressure control module, an injection and discharge pressure valve body and a pressure control pipe. One end of the pressure control pipe on it penetrates into the interior of the fixed frame (9) and is connected to the space below the grooved plate (92). The constant pressure component (91) regulates the pressure in the space between the grooved plate (92) and the chip collection frame (10).

3. A wear debris collection and dust removal device for brake pad machining according to claim 2, characterized in that: Two dust diversion components are distributed around the outer side of the dust collection and settling box, wherein the dust diversion components include: a connecting seat (431) having a sudden expansion cavity (4001) therein; a guide pipe (43) installed on the frame (1), one end of which is fixedly connected to the connecting seat (431), an inner through pipe (44) passing through the inner through pipe (44), one end of which extends into the sudden expansion cavity (4001), and an annular dust transfer channel (4301) is formed between the inner through pipe (44) and the guide pipe (43); a discharge joint (45) installed on the guide pipe (43), one end of which is connected to the dust transfer channel (4301), and the other end of which is connected to the internal space of the box (8), and the discharge joints (45) on the two guide pipes (43) are respectively connected to a settling channel, and the dust in the dust transfer channel (4301) is discharged through the discharge joint (45). The dust flow is introduced into the settling channel; wherein, the dust diverter member 1 (4) introduces the mixed dust flow into the settling channel 1 (8101) through the discharge joint (45), and the dust diverter member 2 (41) introduces the mixed dust flow into the settling channel 2 (8102) through the discharge joint (45); one end of the middle pipe (42) is connected to the end of the inner middle pipe (44) of the dust diverter member 1 (4), and the other end of the middle pipe (42) is connected to the tapered pipe (5) on the dust diverter member 2 (41); the converging pipe (47) is arranged at the end of the inner middle pipe (44) of the dust diverter member 2 (41) to discharge the air flow outside the device; the double-branch diverter block (83) is installed in the upper inner part of the box body (8), and it is on the same line with the discharge channel of the dust diverter member 2 (41) and the connection port (8103) on the partition (81).

4. A wear debris collection and dust removal device for brake pad machining according to claim 3, characterized in that: The deposition chip removal grooves (9201) distributed on the left and right sides of the grooved plate (92) are respectively located in two sedimentation channels, and each deposition chip removal groove (9201) corresponds to the position of a baffle plate (82). There is a flow gap (8201) between the bottom of the baffle plate (82) and the deposition chip removal groove (9201) above and below.

5. A wear debris collection and dust removal device for brake pad machining according to claim 4, characterized in that: Also includes: A drainage ring (46) is provided in an annular shape at the junction of the expanded cavity (4001) of the connecting seat (431) and the chip transfer channel (4301), and is provided with a plurality of drainage grooves (4600). A spiral rib (461) is provided on the inner wall of the guide tube (43), and is located in the chip transfer channel (4301). The spiral rib (461) is used to guide the mixed chip airflow in the chip transfer channel (4301) to the drainage joint (45).

6. A wear debris collection and dust removal device for brake pad machining according to claim 5, characterized in that: Also includes: The guide bar (93) is arranged on the grooved plate (92), and its layout direction is consistent with the layout direction of the deposition chip removal groove (9201). The number of the guide bars (93) is consistent with the number of the deposition chip removal grooves (9201). One end of the guide bar (93) is attached to the inner wall of the box body (8), and the other end is provided with an arc-shaped bar. Each guide bar (93) is located on one side of a deposition chip removal groove (9201) to smoothly guide the chips deposited in the sedimentation channel into the deposition chip removal groove (9201).

7. A wear debris collection and dust removal device for brake pad machining according to claim 6, characterized in that: The negative pressure suction head (7) comprises: a suction pipe (71) connected to the flow-pushing pipe (61), the lower part of which is provided with a rotating seat; an adapter (72) rotatably arranged on the rotating seat of the suction pipe (71), the rotating seat and the adapter (72) having mutually conductive through holes; a rotating frame (73) rotatably arranged on the adapter (72), the lower end of which is provided with a clamping seat for allowing the suction head to be clamped, the lower part of the clamping seat is provided with a suction hole, and the through hole is communicated with the inside of the suction pipe (71); a flexible tube (74) arranged on the adapter (72), one end of which is communicated with the through hole of the adapter (72), and the other end of which is connected with the suction hole of the clamping seat of the rotating frame (73).

8. A wear debris collection and dust removal device for brake pad machining according to claim 7, characterized in that: Also includes: The scattered angle strips (95) are rotatably arranged in the upper part of the fixed frame (9), and a plurality of them are arranged at intervals. There is a gap between two adjacent scattered angle strips (95). The vibration module (94) is arranged on the constant pressure component (91). The vibration generated by the vibration module during operation is transmitted to the fixed frame (9) through the constant pressure component (91).

9. A wear debris collection and dust removal device for brake pad machining according to claim 8, characterized in that: The invention also includes: a driving member (11), which is installed on the bearing seat (3) and is connected to the bearing in the bearing seat (3) and is used to drive the transmission shaft in the bearing seat (3) to rotate; and a hose (111), which is arranged between the reducer (5) and the flow-pushing tube (61).

10. A wear debris collection and dust removal device for brake pad machining according to claim 9, characterized in that: Also includes: The atomizer (12) is arranged on the bearing seat (3) and is provided with an atomizing nozzle (121).

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