Pressure-resistant coal weighing feeder

Abstract

The application provides a pressure-resistant weighing coal feeder. The pressure-resistant weighing coal feeder comprises a weighing coal feeder body, two fixed rods are fixedly installed on the inner wall of one side of the casing of the weighing coal feeder body, sliding sleeves are slidably arranged on the two fixed rods, the same U-shaped frame is fixedly installed on the two sliding sleeves, a scraper is arranged on the U-shaped frame, two mounting plates are fixedly installed on the top of the U-shaped frame, a first rotating shaft and a second rotating shaft are rotatably installed on the two mounting plates, a rubber roller is fixedly sleeved on the first rotating shaft, a brush roller is fixedly sleeved on the second rotating shaft, a third rotating shaft is rotatably installed on the corresponding mounting plate, gears are fixedly sleeved on the first rotating shaft and the third rotating shaft, and the two gears are engaged. The pressure-resistant weighing coal feeder has the advantages of more complete cleaning of the feeding belt, improved weighing accuracy, good protection effect of the scraper and convenient maintenance.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of boiler pulverizing equipment, and particularly relates to a pressure-resistant coal weighing feeder. BACKGROUND

[0002] The coal weighing feeder is a device used in a circulating fluidized bed boiler pulverizing system of a thermal power plant, which is mainly composed of a closed box, a conveying system, a cleaning system, a metering system, a temperature control protection system, an electric door breaker and an electric control system. The pressure-resistant coal weighing feeder is a coal weighing feeder with a pressure-resistant shell. The pressure-resistant coal weighing feeder can uniformly and continuously convey coal in a fully closed state and can also measure the coal in a sub-boiler, and is an ideal device for balancing and calculating coal consumption. The scraper is a core component of the cleaning system of the pressure-resistant coal weighing feeder, which is arranged at a position below a material feeding belt discharging end and can remove the coal adhered to the material feeding belt, and is one of the guarantees for accurate weighing.

[0003] During long-time use of the scraper, when the coal particles are firmly adhered, the contact surface of the scraper may have local openings or uneven places, and these conditions are not easy to be found by the user at the first time, so that the cleaning of the material feeding belt is not thorough enough, thereby affecting the weighing accuracy. In addition, the pressure-resistant coal weighing feeder in the prior art is mainly fixedly installed, and when a large resistance is encountered during use, the scraper is prone to local serious wear because there is no space for downward movement or the space for downward movement is limited, thereby aggravating the situation that the material feeding belt is not thoroughly cleaned.

[0004] Therefore, it is necessary to provide a pressure-resistant coal weighing feeder to solve the above technical problems. SUMMARY

[0005] The present application solves the technical problem of providing a pressure-resistant coal weighing feeder which can more thoroughly clean the material feeding belt, is beneficial to improve the weighing accuracy, has a good protection effect on the scraper and is convenient to maintain.

[0006] In order to solve the above technical problems, the pressure-resistant coal weighing feeder provided by the present application comprises a coal weighing feeder body, two fixed rods are fixedly installed on the inner wall of one side of the shell of the coal weighing feeder body, a sliding sleeve is slidably sleeved on each of the two fixed rods, a same U-shaped frame is fixedly installed on each of the two sliding sleeves, a scraper is arranged on the U-shaped frame, two mounting plates are fixedly installed on the top of the U-shaped frame, a first rotating shaft and a second rotating shaft are rotatably installed on each of the two mounting plates, a rubber roller is fixedly sleeved on the first rotating shaft, a brush roller is fixedly sleeved on the second rotating shaft, a third rotating shaft is rotatably installed on the corresponding mounting plate, a gear is fixedly sleeved on each of the first rotating shaft and the third rotating shaft, the two gears are engaged with each other, a belt pulley is fixedly sleeved on each of the third rotating shaft and the second rotating shaft, a same belt is sleeved on the two belt pulleys, the rubber roller, the brush roller and the scraper are in contact with the feeding belt of the coal weighing feeder body, a first insertion slot is formed in the top of each of the two fixed rods, a rotating rod is rotatably installed on the top of each of the two sliding sleeves, a bolt is penetratingly and slidably installed on each of the two rotating rods, and the bottom end of each of the two bolts extends into the corresponding first insertion slot.

[0007] Preferably, a positioning stopper is fixedly installed on the end of each of the two fixed rods close to the feeding belt of the coal weighing feeder body, and each of the two sliding sleeves is in contact with the corresponding positioning stopper.

[0008] Preferably, two limiting rings are fixedly sleeved on the outer wall of the bolt, the two limiting rings are located above and below the rotating rod respectively, and a first pull ring is welded on the top of the bolt.

[0009] Preferably, two guide sliding rods are slidably installed on the U-shaped frame, a same mounting strip is fixedly installed on the top end of each of the two guide sliding rods, the scraper is fixedly installed on the mounting strip, a support degree adjusting mechanism is fixedly installed on the U-shaped frame, the support degree adjusting mechanism comprises a cylinder, a sliding column, a second spring and an adjusting block, the cylinder is fixedly installed on the U-shaped frame, the sliding column is penetratingly and slidably installed in the cylinder, a fixed sleeve plate is fixedly sleeved on the outer wall of the sliding column, the fixed sleeve plate is in contact with the top inner wall of the cylinder, a sliding sleeve plate is slidably sleeved on the sliding column, the adjusting block is threadedly installed in the cylinder, the sliding column penetrates through the adjusting block and is movably linked with the adjusting block, the bottom of the sliding sleeve plate is in contact with the top of the adjusting block, the second spring is sleeved on the sliding column, the top end of the second spring is in contact with the fixed sleeve plate, the bottom end of the second spring is in contact with the sliding sleeve plate, and a plurality of hand levers arranged in a ring array are fixedly installed on the bottom end of the adjusting block.

[0010] Preferably, the top of each of the two mounting plates is provided with a second slot, two fixed plates are fixedly installed on the inner wall of one side of the shell of the coal weighing feeder body, two threaded rods are penetrated through and threadedly installed on the two fixed plates, and pin heads are integrally formed at the bottom ends of the two threaded rods.

[0011] Preferably, the second rotating shaft comprises an intermediate shaft and two end shafts, the two end shafts are penetrated through and rotationally installed on the two mounting plates respectively, the corresponding gear is fixedly sleeved on the end shaft close to the third rotating shaft, the intermediate shaft is located between the two mounting plates, the brush roller is fixedly sleeved on the intermediate shaft, and the two ends of the intermediate shaft are integrally provided with placing blocks, one end of each of the two end shafts is fixedly installed with a mounting seat, the top of each of the two mounting seats is provided with a placing slot, the two placing blocks are located in the corresponding placing slots, the mounting seat is provided with a baffle, and the top of the placing block is in contact with the bottom of the baffle.

[0012] Preferably, first guide inclined surfaces are formed in the inner walls on both sides of the placing slot.

[0013] Preferably, second guide inclined surfaces are formed in the outer walls on both sides of the placing block, the baffle is penetrated through and slidably installed in the two sockets, one end of the baffle is fixedly installed with a limiting plate, a third slot is formed in the outer wall of one side of the limiting plate away from the baffle, a fixed block located below the limiting plate is fixedly installed on the mounting seat, a sliding rod is penetrated through and slidably installed on the fixed block, a locking block is fixedly installed at the top end of the sliding rod and located in the third slot, an end plate is fixedly installed at the bottom end of the sliding rod, a first spring is sleeved on the sliding rod, the top end of the first spring is fixedly connected with the fixed block, and the bottom end of the first spring is fixedly connected with the end plate.

[0014] Preferably, a handle is integrally formed at the top of the limiting plate.

[0015] Preferably, a second pull ring is welded at the bottom of the end plate.

[0016] Compared with the related art, the pressure-resistant coal weighing feeder has the following beneficial effects:

[0017] ①Through the arrangement of the sliding sleeve, the U-shaped frame, the first rotating shaft, the second rotating shaft, the third rotating shaft, the rubber roller and the brush roller, in use, the rubber roller can obtain power from the feeding belt of the coal weighing feeder body, and finally drives the brush roller to rotate circularly, actively sweeps the feeding belt behind the scraper, sweeps away the coal that cannot be scraped due to the gap or local excessive wear of the scraper, realizes more thorough cleaning of the feeding belt, and is favorable for improving the weighing accuracy.

[0018] ②Through the setting of the support degree adjusting mechanism, the mounting strip and the guide slide rod, elastic support of the scraper can be realized, when the scraper encounters large resistance, the scraper can move downward to avoid space, so that local excessive wear of the scraper can be prevented, and the pre-support degree of the scraper can be conveniently adjusted;

[0019] ③Through the setting of the first plug hole, the second plug hole, the screw rod pin head and other components, when the components on the U-shaped frame are maintained, the U-shaped frame can be conveniently pulled to the vicinity of the maintenance opening and fixed, so that the convenience of maintenance is greatly improved;

[0020] ④Through the setting of the intermediate shaft, the end shaft, the placement block, the mounting seat, the baffle and the locking block, a combined second rotating shaft is formed, when the brush roller needs to be maintained, the brush roller can be quickly disassembled and reinstalled through simple operation, so that the maintenance efficiency is improved, and the convenience of use of the present application is further improved. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a partial cross-sectional structure schematic view of the first embodiment of the pressure-resistant weighing coal feeder provided by the present application;

[0022] Figure 2 It is an enlarged schematic view of the A part shown in the figure; Figure 1

[0023] Figure 3 It is a structure schematic view of the U-shaped frame, the first rotating shaft, the second rotating shaft and the two rotating rods shown in the figure; Figure 2

[0024] Figure 4 It is a structure schematic view of the two rotating rods in an inclined state shown in the figure; Figure 3

[0025] Figure 5 It is an enlarged schematic view of the B part shown in the figure; Figure 1

[0026] Figure 6 It is a structure schematic view of the screw rod; Figure 5

[0027] Figure 7 It is a cross-sectional structure schematic view of the support degree adjusting mechanism; Figure 1

[0028] Figure 8 It is a structure schematic view of the U-shaped frame, the first rotating shaft, the second rotating shaft and the two rotating rods in the second embodiment of the pressure-resistant weighing coal feeder provided by the present application;

[0029] Figure 9 Figure 8 ​​​​​​​An enlarged schematic view of the C part shown;

[0030] Figure 10 For Figure 8 A partially exploded schematic view of the second rotating shaft shown.

[0031] Reference numerals in the drawing: 1, coal weighing feeder body; 2, fixed rod; 3, sliding sleeve; 4, U-shaped frame; 5, scraper; 6, mounting plate; 7, first rotating shaft; 8, second rotating shaft; 9, rubber roller; 10, brush roller; 11, third rotating shaft; 12, rotating rod; 13, bolt; 14, support degree adjusting mechanism; 15, first insertion slot; 16, second insertion slot; 17, fixed plate; 18, screw rod; 19, pin head; 801, intermediate shaft; 802, end shaft; 803, placement block; 804, mounting seat; 805, placement slot; 806, insertion opening; 807, baffle; 808, limiting plate; 809, third insertion slot; 810, fixed block; 811, sliding rod; 812, locking block; 813, end plate; 814, first spring; 1401, cylinder; 1402, sliding column; 1403, fixed sleeve plate; 1404, sliding sleeve plate; 1405, second spring; 1406, adjusting block. DETAILED DESCRIPTION

[0032] The application will be further described below in conjunction with the drawings and embodiments.

[0033] First embodiment

[0034] Please see Figures 1-7In the first embodiment of the present application, the pressure-resistant coal weighing feeder comprises a coal weighing feeder body 1, which is provided with two fixed rods 2 fixedly installed on the inner wall of the side with a front maintenance opening of the shell of the coal weighing feeder body 1, two sliding sleeves 3 slidably sleeved on the two fixed rods 2, a same U-shaped frame 4 fixedly installed on the two sliding sleeves 3, a scraper 5 provided on the U-shaped frame 4, the top of the scraper 5 in contact with the feeding belt of the coal weighing feeder body 1, two mounting plates 6 fixedly installed on the top of the U-shaped frame 4, two inclined supporting rods fixedly installed on the bottom of each of the two mounting plates 6, the bottom of each of the two inclined supporting rods in fixed linkage with the U-shaped frame 4, a first rotating shaft 7 and a second rotating shaft 8 rotatably installed on the two mounting plates 6 through bearings, a rubber roller 9 fixedly sleeved on the first rotating shaft 7, the rubber roller 9 in contact with the feeding belt, a same stress shaft rotatably installed on the two inner walls of the shell of the coal weighing feeder body 1, the stress shaft located in the feeding belt and in contact with the inner wall of the feeding belt, the stress shaft cooperating with the rubber roller 9 to press the feeding belt, so that the feeding belt and the rubber roller 9 have sufficient friction, thereby stably driving the rubber roller 9 to rotate, a brush roller 10 fixedly sleeved on the second rotating shaft 8, a third rotating shaft 11 rotatably installed on the corresponding mounting plate 6, a gear fixedly sleeved on each of the first rotating shaft 7 and the third rotating shaft 11, the two gears in meshing, a pulley fixedly sleeved on each of the third rotating shaft 11 and the second rotating shaft 8, a same belt sleeved on the two pulleys, the feeding belt clockwise rotating to convey the coal, driving the rubber roller 9 to rotate counterclockwise, the third rotating shaft 11 clockwise rotating through the meshing transmission of the two gears, the second rotating shaft 8 clockwise rotating through the transmission of the two pulleys and the belt, the second rotating shaft 8 driving the brush roller 10 to rotate, so that in the movement of the feeding belt, in addition to the scraper 5 scraping the coal powder adhered to the surface of the feeding belt, the brush roller 10 further sweeps the edge of the feeding belt, in the embodiment, in order to facilitate the fixing of the U-shaped frame 4 and the maintenance of the components installed on the U-shaped frame 4, a first insertion slot 15 is formed in the top of each of the two fixed rods 2, a rotating rod 12 rotatably installed on the top of each of the two sliding sleeves 3, a latch 13 penetrating and slidably installed on each of the two rotating rods 12, the bottom end of each of the two latches 13 extending into the corresponding first insertion slot 15, in order to prevent the latches 13 from falling off the rotating rods 12, two limiting rings fixedly sleeved on the outer wall of each of the latches 13, the two limiting rings located above and below the rotating rod 12 respectively, a first pull ring welded on the top of each of the latches 13, when the two latches 13 are inserted into the corresponding first insertion slot 15, the position of the U-shaped frame 4 is fixed, a positioning stopper fixedly installed on the end of each of the two fixed rods 2 close to the feeding belt of the coal weighing feeder body 1, when each of the two sliding sleeves 3 is in contact with the corresponding positioning stopper, the rubber roller 9, the brush roller 10 and the scraper 5 all reach the predetermined position,At this time, the plug 13 is also aligned with the corresponding first slot 15 in the vertical direction, and the two rotating rods 12 can be rotated upward in advance when the U-shaped frame 4 is pulled towards the manhole, so that the U-shaped frame 4 can be closer to the manhole.

[0035] In the embodiment, in order to prevent the scraper 5 from being excessively worn, the scraper 5 can be downwardly moved when encountering a large resistance, the U-shaped frame 4 is slidably provided with two guide sliding rods, the top ends of the two guide sliding rods are fixedly provided with the same mounting strip, the scraper 5 is fixedly mounted on the mounting strip, the U-shaped frame 4 is fixedly provided with the support degree adjusting mechanism 14, the support degree adjusting mechanism 14 comprises a cylinder 1401, a sliding column 1402, a second spring 1405 and an adjusting block 1406, the cylinder 1401 is fixedly mounted on the U-shaped frame 4, the sliding column 1402 penetrates and is slidably mounted in the cylinder 1401, a fixed sleeve plate 1403 is fixedly sleeved on the outer wall of the sliding column 1402, the fixed sleeve plate 1403 is in contact with the top inner wall of the cylinder 1401, a sliding sleeve plate 1404 is slidably sleeved on the sliding column 1402, the adjusting block 1406 is threadedly mounted in the cylinder 1401, the sliding column 1402 penetrates the adjusting block 1406 and is movably linked with the adjusting block 1406, the bottom of the sliding sleeve plate 1404 is in contact with the top of the adjusting block 1406, the second spring 1405 is sleeved on the sliding column 1402, the top end of the second spring 1405 is in contact with the fixed sleeve plate 1403, and the bottom end is in contact with the sliding sleeve plate 1404, the bottom end of the adjusting block 1406 is fixedly provided with a plurality of hand levers which are arranged in an annular array, since the scraper 5 is elastically supported by the second spring 1405, the scraper 5 can be downwardly moved when encountering a large resistance while ensuring that the scraper 5 is tightly attached to the feeding belt, and the second spring 1405 can be upwardly or downwardly moved by rotating the adjusting block 1406 clockwise or counterclockwise, so as to adjust the compression degree of the second spring 1405 and realize the adjustment of the pre-supporting degree of the scraper 5.

[0036] In order to fix the U-shaped frame 4 near the manhole when the scraper 5, the brush roller 10 and other components are maintained, in the embodiment, the top of each of the two mounting plates 6 is provided with a second slot 16, one side of the inner wall of the shell of the weighing coal feeder body 1 is fixedly provided with two fixed plates 17, the two fixed plates 17 are both penetrated and threadedly provided with a screw rod 18, the bottom end of each of the two screw rods 18 is integrally provided with a pin head 19, when the U-shaped frame 4 is moved in the direction of the manhole, when the right end of each of the two mounting plates 6 is in contact with the inner wall of the shell of the weighing coal feeder body 1, the two pin heads 19 are aligned with the corresponding second slots 16 in the vertical direction, then the two screw rods 18 are sequentially rotated clockwise, the screw rod 18 is downwardly moved in the process of rotating clockwise, so that the two pin heads 19 are inserted into the corresponding second slots 16, and the U-shaped frame 4 is fixed.

[0037] In the embodiment,

[0038] When the coal feeder body 1 is in the process of feeding coal, the feeding belt rotates clockwise to convey coal to the discharge port, and the scraper 5 scrapes the residual coal on the feeding belt, and since the rubber roller 9 is in close contact with the feeding belt, the rubber roller 9 will rotate counterclockwise under the driving of the feeding belt, the first rotating shaft 7 rotates correspondingly under the driving of the rubber roller 9, the third rotating shaft 11 rotates clockwise under the driving of the first rotating shaft 7 through the meshing transmission of the two gears, and the second rotating shaft 8 rotates clockwise under the driving of the third rotating shaft 11 through the transmission of the two pulleys and the belt, the brush roller 10 rotates correspondingly under the driving of the second rotating shaft 8, and the brush roller 10 can further clean the feeding belt, and the coal that cannot be scraped off due to the gap or local excessive wear of the scraper 5 can be cleaned off;

[0039] When the scraper 5 encounters stubbornly bonded coal particles, it will be subjected to a large resistance, and since it is elastically supported by the support degree adjusting mechanism 14, the scraper 5 can move downward in the above-mentioned case, so as to avoid excessive wear and improve the service life of the scraper 5, the scraper 5 drives the sliding column 1402 to move downward, the sliding column 1402 drives the fixed sleeve plate 1403 to move downward, the second spring 1405 is further compressed, and when the resistance disappears, the scraper 5 can be reset under the elastic force of the second spring 1405, the distance between the sliding sleeve plate 1404 and the fixed sleeve plate 1403 can be adjusted by rotating the adjusting block 1406, that is, the compression degree of the second spring 1405 is adjusted, and the pre-supporting degree of the scraper 5 is adjusted;

[0040] When the components on the U-shaped frame 4 need to be overhauled or replaced, the two pins 13 are first pulled out of the first insertion slot 15, and then the U-shaped frame 4 is moved close to the maintenance opening by pulling the two rotating rods 12, and in the process of pulling, the rotating rods 12 are gradually rotated upward to avoid the interference of the machine shell with the movement of the U-shaped frame 4, when the two mounting plates 6 abut against the machine shell, the two second insertion slots 16 are aligned with the corresponding pin heads 19 in the vertical direction at this time, and then the two screw rods 18 are rotated clockwise in sequence to make the two pin heads 19 inserted into the two second insertion slots 16, so as to realize the locking of the U-shaped frame 4, and since the U-shaped frame 4 cannot be moved arbitrarily, the maintenance work is facilitated.

[0041] Compared with the related art, the pressure-resistant coal feeder provided by the present application has the following beneficial effects:

[0042] Through the setting of the sliding sleeve 3, the U-shaped frame 4, the first rotating shaft 7, the second rotating shaft 8, the third rotating shaft 11, the rubber roller 9, the brush roller 10 and the like, in use, the rubber roller 9 can obtain power from the feeding belt of the coal weighing feeder body 1, finally drives the brush roller 10 to rotate circularly, actively sweeps the feeding belt behind the scraper 5, can sweep away the coal which cannot be swept away due to the gap or local excessive wear of the scraper 5, realizes more thorough cleaning of the feeding belt; through the setting of the support degree adjusting mechanism 14, the mounting strip and the guide sliding rod, the elastic support of the scraper 5 can be realized, when the scraper 5 encounters a larger resistance, can have a space to move downward to avoid, prevents the local excessive wear of the scraper 5, and the pre-support degree of the scraper 5 can also be adjusted very conveniently; through the setting of the rotating rod 12, the bolt 13, the first insertion slot 15, the second insertion slot 16, the screw rod 18, the pin head 19 and the like, when the components on the U-shaped frame 4 are overhauled, the U-shaped frame 4 can be conveniently pulled to the vicinity of the overhauling opening and fixed, greatly improves the convenience of overhauling.

[0043] Second embodiment:

[0044] Based on the pressure-resistant coal weighing feeder provided in the first embodiment of the present application, the second embodiment of the present application proposes another pressure-resistant coal weighing feeder. The second embodiment is only a preferred mode of the first embodiment, and the implementation of the second embodiment does not affect the separate implementation of the first embodiment.

[0045] The second embodiment of the present application will be further described below in combination with the drawings and embodiments.

[0046] Please refer to Figures 8-10 In the pressure-resistant coal weighing feeder provided in the present embodiment, the second rotating shaft 8 is combined, specifically, the second rotating shaft 8 includes an intermediate shaft 801 and two end shafts 802, the two end shafts 802 are respectively penetrated and rotatably installed on the two mounting plates 6, the corresponding gear fixing sleeves are arranged on the end shafts 802 close to the third rotating shaft 11, the intermediate shaft 801 is located between the two mounting plates 6, the brush roller 10 is fixedly sleeved on the intermediate shaft 801, the two ends of the intermediate shaft 801 are integrally provided with placing blocks 803, the two end shafts 802 are respectively fixedly installed with mounting seats 804 at one end close to each other, the top of each mounting seat 804 is provided with a placing groove 805, the two placing blocks 803 are located in the corresponding placing grooves 805, in order to facilitate the placing block 803 to be smoothly placed into the placing groove 805, the first guide inclined surfaces are respectively arranged on the inner walls of the two sides of the placing groove 805, the mounting seat 804 is provided with a baffle 807, and the top of the placing block 803 is in contact with the bottom of the baffle 807.

[0047] In order to realize reliable locking of the baffle 807, and facilitate quick disassembly of the brush roller 10, in the embodiment, the outer wall of both sides of the placing block 803 is provided with an insertion port 806 communicated with the placing groove 805, the baffle 807 is penetrated and slidably installed in the two insertion ports 806, one end of the baffle 807 is fixedly installed with a limiting plate 808, the top of the limiting plate 808 is integrally provided with a handle, which facilitates the user to pull out the baffle 807 from the two insertion ports 806, the outer wall of the side away from the baffle 807 of the limiting plate 808 is provided with a third insertion slot 809, the mounting seat 804 is fixedly installed with a fixed block 810 below the limiting plate 808, the fixed block 810 is penetrated and slidably installed with a sliding rod 811, the top end of the sliding rod 811 is fixedly installed with a locking block 812 in the third insertion slot 809, the bottom end of the sliding rod 811 is fixedly installed with an end plate 813, the sliding rod 811 is sleeved with a first spring 814, the top end of the first spring 814 is fixedly connected with the fixed block 810, the bottom end is fixedly connected with the end plate 813, the bottom of the end plate 813 is welded with a second pull ring, the sliding rod 811 can be pulled downward through the second pull ring, so that the locking block 812 exits the third insertion slot 809.

[0048] In the embodiment:

[0049] Since the second rotating shaft 8 is assembled as described above, when the brush roller 10 needs to be disassembled from the two mounting plates 6 for maintenance, the two slide rods 811 are pulled down in sequence, the slide rods 811 drive the locking blocks 812 to move downward, and finally the locking blocks 812 will completely exit from the third insertion slot 809, then the limiting plate 808 is held to pull the baffle 807 out of the mounting seat 804, so that the top of the placement block 803 is not blocked, then the brush roller 10 and the intermediate shaft 801 can be taken out of the two mounting seats 804, and the whole disassembly process is relatively convenient and fast; when reinstalling the brush roller 10, the placement blocks 803 at both ends of the intermediate shaft 801 are respectively placed in the corresponding placement slots 805, then the slide rods 811 are pulled downward to pull the locking blocks 812 to the low position to avoid blocking the baffle 807, the first spring 814 will be stretched during the above process, then the baffle 807 is inserted into the corresponding mounting seat 804, until the limiting plate 808 at one end of the baffle 807 is attached to the mounting seat 804, then the second pull ring is released, under the tension of the first spring 814, the end plate 813 will move upward, thereby pushing the slide rods 811 and the locking blocks 812 to move upward, and finally the locking blocks 812 will enter the third insertion slot 809, thereby achieving the locking of the baffle 807, and under the condition that the two baffles 807 are reliably locked, the two placement blocks 803 can be prevented from sliding out of the corresponding placement slots 805. Through the arrangement of the intermediate shaft 801, the end shaft 802, the placement block 803, the mounting seat 804, the baffle 807 and the locking block 812, a combined second rotating shaft 8 is formed, when the brush roller 10 needs to be maintained, the disassembly and subsequent reinstallation of the brush roller 10 can be quickly completed through simple operation, which is beneficial to improve the maintenance efficiency and further improve the convenience of using the present application.

[0050] The above description is only an embodiment of the present application, and does not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A pressure-resistant weighing coal feeder, comprising a weighing coal feeder body, characterized in that, Two fixed rods are fixedly installed on one inner wall of the casing of the weighing coal feeder body. Each fixed rod has a sliding sleeve slidably fitted onto it. The same U-shaped frame is fixedly installed on each sliding sleeve. A scraper is mounted on the U-shaped frame. Two mounting plates are fixedly installed on the top of the U-shaped frame. A first rotating shaft and a second rotating shaft are rotatably mounted on the two mounting plates. A rubber roller is fixedly fitted onto the first rotating shaft, and a brush roller is fixedly fitted onto the second rotating shaft. A third rotating shaft is rotatably mounted on the corresponding mounting plate. Gears are fixedly fitted onto both the first and third rotating shafts, and the two gears mesh with each other. Pulleys are fixedly fitted onto both the third and second rotating shafts, and the same belt is fitted onto both pulleys. The rubber roller, brush roller, and scraper are all in contact with the feeding belt of the weighing coal feeder body. A first slot is opened at the top of each of the two fixed rods. A rotating rod is rotatably installed at the top of each of the two sliding sleeves. A pin is slidably installed through and on each of the two rotating rods, and the bottom end of each pin extends into the corresponding first slot.

2. The pressure-resistant weighing coal feeder according to claim 1, characterized in that, Both of the fixed rods are fixedly installed with positioning blocks at one end of the feeding belt near the main body of the weighing coal feeder, and both of the sliding sleeves are in contact with the corresponding positioning blocks.

3. The pressure-resistant weighing coal feeder according to claim 1, characterized in that, Two limiting rings are fixedly sleeved on the outer wall of the pin, and the two limiting rings are respectively located above and below the rotating rod. A first pull ring is welded to the top of the pin.

4. The pressure-resistant weighing coal feeder according to claim 1, characterized in that, Two guide rods are slidably mounted on the U-shaped frame. A common mounting strip is fixedly mounted on the top of each guide rod. The scraper is fixedly mounted on the mounting strip. A support adjustment mechanism is fixedly mounted on the U-shaped frame. The support adjustment mechanism includes a cylinder, a sliding column, a second spring, and an adjusting block. The cylinder is fixedly mounted on the U-shaped frame. The sliding column passes through and slidably mounts inside the cylinder. A fixed sleeve is fixedly fitted onto the outer wall of the sliding column, and the fixed sleeve contacts the top inner wall of the cylinder. A sliding sleeve is slidably fitted onto the sliding column. The adjusting block is threaded inside the cylinder. The sliding column passes through the adjusting block and is movably connected to it. The bottom of the sliding sleeve contacts the top of the adjusting block. The second spring is fitted onto the sliding column, with its top contacting the fixed sleeve and its bottom contacting the sliding sleeve. Multiple levers arranged in a circular array are fixedly mounted on the bottom of the adjusting block.

5. The pressure-resistant weighing coal feeder according to claim 4, characterized in that, The top of each of the two mounting plates is provided with a second slot. Two fixing plates are fixedly installed on the inner wall of one side of the casing of the weighing coal feeder body. Both fixing plates are threaded with screws through them, and the bottom ends of the two screws are integrally formed with pins.

6. The pressure-resistant weighing coal feeder according to claim 1, characterized in that, The second rotating shaft includes an intermediate shaft and two end shafts. The two end shafts pass through and are rotatably mounted on two mounting plates. The corresponding gear is fixedly sleeved on the end shaft near the third rotating shaft. The intermediate shaft is located between the two mounting plates. The brush roller is fixedly sleeved on the intermediate shaft. Both ends of the intermediate shaft are integrally formed with placement blocks. The ends of the two end shafts that are close to each other are fixedly mounted with mounting seats. The top of the two mounting seats is provided with a placement groove. The two placement blocks are located in the corresponding placement grooves. The mounting seats are provided with baffles. The top of the placement block is in contact with the bottom of the baffle.

7. The pressure-resistant weighing coal feeder according to claim 6, characterized in that, The inner walls on both sides of the placement groove are provided with first guide slopes.

8. The pressure-resistant weighing coal feeder according to claim 6, characterized in that, The two outer walls of the placement block are provided with slots that communicate with the placement groove. The baffle is slidably installed through and in the two slots. A limiting plate is fixedly installed at one end of the baffle. A third slot is provided on the outer wall of the limiting plate away from the baffle. A fixing block located below the limiting plate is fixedly installed on the mounting base. A sliding rod is slidably installed through and on the fixing block. A locking block located in the third slot is fixedly installed at the top of the sliding rod. An end plate is fixedly installed at the bottom of the sliding rod. A first spring is sleeved on the sliding rod. The top of the first spring is fixedly connected to the fixing block, and the bottom is fixedly connected to the end plate.

9. The pressure-resistant weighing coal feeder according to claim 8, characterized in that, The top of the limiting plate is integrally formed with a handle.

10. The pressure-resistant weighing coal feeder according to claim 8, characterized in that, A second pull ring is welded to the bottom of the end plate.

Images