Automatic matching device of tamping hammer and feeder

Abstract

The utility model discloses an automatic matching device of a tamping hammer and a feeder, which comprises an ultrasonic sensor, a motor, an encoder and a controller, and an output shaft of the motor drives a hammer rod of the tamping hammer to move up and down; the ultrasonic sensor is fixed on the fixed bracket and is arranged on one side of a hammer rod of the tamping hammer; the encoder is arranged on one side of the motor, and the sensing end of the encoder makes contact with the output end of the motor. The signal output ends of the ultrasonic sensor and the encoder are connected with the signal input end of the controller, and the controller is electrically connected with the driving end of the shaking feeding device. The device has the advantages that when the height of a coal cake is qualified, judgment is conducted by monitoring and sensing the hammering height of the tamping hammer and the hammering frequency after hammering, feeding of the shaking feeding device is stopped in time, automatic matching of the tamping hammer and the shaking feeding device is achieved, the height requirements of different coal cakes can be met, manual work is replaced, and the health of workers is prevented from being affected; meanwhile, feeding is accurately controlled, and the quality of coal cakes is improved.

Description

Technical Field:

[0001] The utility model relates to the field of coking, and particularly relates to an automatic cooperation device between a tamping hammer and a feeder. Background Art:

[0002] When coking coal is used in a tamping coke oven for coking, the raw materials are fed by pushing the blended coal formed into a coal cake into the coke oven. Specifically, the blended coal is continuously conveyed into the coal box through a shaking feeding device, and at the same time, the tamping hammer repeatedly makes upward and downward movements, so as to tamp the blended coal in the coal box into a coal cake. Then, when the height of the coal cake reaches the requirement, it is generally judged manually, and the hammering and feeding are stopped. However, there are the following problems in this process:

[0003] 1. According to different coal blending ratios, the height requirements for the coal cake are also different. Manual experience judgment will result in errors. At the same time, the control of feeding and hammering shutdown is not timely, affecting the quality of the coal cake, and directly leading to phenomena such as corner dropping, collapse, and coke collapse of the coal cake.

[0004] 2. There is dust floating during the hammering process, which affects the health of workers. Content of the Utility Model:

[0005] The purpose of the utility model is to provide an automatic cooperation device between a tamping hammer and a feeder.

[0006] The utility model is implemented by the following technical solutions:

[0007] An automatic cooperation device between a tamping hammer and a feeder includes a coal box, a tamping hammer, and a shaking feeding device. The tamping hammer moves up and down above the coal box, and the shaking feeding device is arranged on one side of the coal box. It also includes a guiding bracket, a fixed bracket, an ultrasonic sensor, a motor, a runner, a connecting rod, a transmission rod, a movable rod, an encoder, and a controller. The output shaft of the motor is fixed to the center of the runner. The wheel surface of the runner is fixed to one end of the connecting rod. The other end of the connecting rod is rotatably connected to one end of the transmission rod. The other end of the transmission rod is connected to one end of the movable rod. The other end of the movable rod is movably inserted into the top end of the tamping hammer rod. A blind hole for inserting the movable rod is provided at the top end of the tamping hammer rod;

[0008] Limit rods are fixed on both sides of the other end of the movable rod. Long strip holes are provided on the side wall of the blind hole. The limit rods pass through the long strip holes. Springs are arranged in the long strip holes. The two ends of the springs are respectively fixed to the bottom end of the long strip holes and the limit rods;

[0009] The guiding bracket is in a "well" shape, and the tamping hammer rod passes through the middle of the guiding bracket;

[0010] The ultrasonic sensor is fixed on the fixed bracket, and the ultrasonic sensor is placed on one side of the rammer rod of the tamping hammer;

[0011] The encoder is arranged on one side of the motor, and the sensing end of the encoder contacts the output end of the motor;

[0012] The signal output ends of the ultrasonic sensor and the encoder are connected to the signal input end of the controller, and the controller is electrically connected to the driving end of the shaking feeding device.

[0013] Preferably, a slope is provided between the coal bunker and the outlet of the shaking feeding device. A plurality of pressure plates are arranged on the slope along the inclined direction. A pressure sensor is provided at the bottom of the pressure plate. The signal output end of the pressure sensor is connected to the signal input end of the controller, and the controller is electrically connected to the driving end of the shaking feeding device.

[0014] Advantages of the present utility model: 1. When the height of the coal cake is qualified in this application, it is judged by monitoring the height during the hammering of the tamping hammer and the number of hammerings after hammering, and the feeding of the shaking feeding device is stopped in time, achieving the automatic cooperation between the tamping hammer and the shaking feeding device, being able to adapt to the height requirements of different coal cakes, replacing manual labor, reducing errors, accurately controlling the feeding at the same time, and improving the quality of the coal cake.

[0015] 2. No manual labor is required, avoiding affecting the health of workers.

[0016] 3. The shaking feeding device feeds coal, and the pressure sensors under the plurality of pressure plates sense the sliding weight of the coal. When a local pressure sensor does not feedback a signal for a long time, it indicates uneven feeding. By controlling the shaking feeding device to stop, the quality of the coal cake is prevented from getting worse and worse. Description of the drawings:

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0018] Figure 1 is a schematic diagram of the overall structure of the present utility model;

[0019] Figure 2 is a control block diagram of the present utility model.

[0020] In the figure: coal box 1, tamping hammer 2, shaking feeder 3, guiding bracket 4, fixed bracket 5, ultrasonic sensor 6, motor 7, runner 8, connecting rod 9, transmission rod 10, movable rod 11, encoder 12, controller 13, blind hole 14, long hole 15, spring 16, slope 17, pressure plate 18, pressure sensor 19, limiting rod 20. Specific implementation mode:

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0022] As Figure 1 、 Figure 2 shown, an automatic cooperation device for a tamping hammer and a feeder includes a coal box 1, a tamping hammer 2, and a shaking feeder 3. The tamping hammer 2 moves up and down above the coal box 1, and the shaking feeder 3 is placed on one side of the coal box 1. It also includes a guiding bracket 4, a fixed bracket 5, an ultrasonic sensor 6, a motor 7, a runner 8, a connecting rod 9, a transmission rod 10, a movable rod 11, an encoder 12, and a controller 13. The output shaft of the motor 7 is fixed to the center of the runner 8, the wheel surface of the runner 8 is fixed to one end of the connecting rod 9, the other end of the connecting rod 9 is rotatably connected to one end of the transmission rod 10, the other end of the transmission rod 10 is connected to one end of the movable rod 11, and the other end of the movable rod 11 is movably inserted into the top end of the hammer rod of the tamping hammer 2. A blind hole 14 for inserting the movable rod 11 is provided at the top end of the hammer rod of the tamping hammer 2;

[0023] The motor 7 drives the runner 8 to rotate. The runner 8 drives the connecting rod 9 to move eccentrically along the circumference. The connecting rod 9 drives one end of the transmission rod 10 to rotate, and the other end of the transmission rod 10 drives the movable rod 11 to move up and down.

[0024] Limiting rods 20 are fixed on both sides of the other end of the movable rod 11. Long holes 15 are provided on the side wall of the blind hole 14. The limiting rods 20 pass through the long holes 15. Springs 16 are provided in the long holes 15. Both ends of the springs 16 are fixed to the bottom end of the long holes 15 and the limiting rods 20 respectively;

[0025] When the movable rod 11 moves up and down, it moves in the blind hole 14 at the top end of the hammer rod of the tamping hammer 2 and drives the tamping hammer 2 to move up and down. Specifically, it is through the movement of the limiting rods 20 in the long holes 15. When the limiting rods 20 are at the top end of the long holes 15, the tamping hammer 2 is pulled up. When the limiting rods 20 are at the bottom end of the long holes 15, the springs 16 are compressed and the tamping hammer 2 is pressed down. The tamping hammer 2 can pound the coal cake in the coal box 1;

[0026] As the blended coal is added, the height of the coal cake in the coal box 1 gradually increases. Each time the tamping hammer 2 descends and strikes the coal cake, the height at which it stays also increases. The tamping hammer 2 can rise through the limit rod 20 in the long hole 15 to adapt to the increased height of the strike. The spring 16 holds the tamping hammer 2 in place before it strikes downwards, not only keeping the tamping hammer 2 at the lowest position but also damping the vibration during the instant of striking.

[0027] The guiding support 4 is in a "well" shape. The rod of the tamping hammer 2 passes through the middle of the guiding support 4. When the tamping hammer 2 moves up and down, it is restricted by the guiding support 4 and will not deviate.

[0028] The ultrasonic sensor 6 is fixed on the fixed support 5. The ultrasonic sensor 6 is placed on one side of the rod of the tamping hammer 2. As the height of the coal cake gradually increases, the height at which the tamping hammer 2 stays each time it strikes also increases. At this time, the rod of the tamping hammer 2 is still in the process of rising and falling, and the top of the rod of the tamping hammer 2 does not stay at the sensing end of the ultrasonic sensor 6, so the ultrasonic sensor 6 cannot effectively sense it. For the top structure of the rod of the tamping hammer 2, when the height of the coal cake reaches the requirement, the height at which the tamping hammer 2 stays when it strikes, that is, the height of the top of the rod of the tamping hammer 2 is flush with the sensing end of the ultrasonic sensor 6, and can be effectively sensed by the ultrasonic sensor 6.

[0029] The encoder 12 is arranged on one side of the motor 7, and the sensing end of the encoder 12 is in contact with the output end of the motor 7; the rotation of the output end of the motor 7 drives the runner 8 to rotate. For each rotation, the tamping hammer 2 completes 1 strike, and the encoder 12 records it once. Then, based on experimental inference, the number of strikes is determined. From the start of striking the blended coal to the height of the coal cake meeting the requirement, the number of strikes required in the middle is set as a preset value. Then, during production, through the monitoring of the encoder 12, when the height of the coal cake reaches the required height, whether the number of times recorded by the encoder 12 meets the preset number of times to be struck is checked.

[0030] The signal output ends of the ultrasonic sensor 6 and the encoder 12 are connected to the signal input end of the controller 13, and the controller 13 is electrically connected to the driving end of the shaking feeding device 3; the controller 13 uses a PLC controller;

[0031] The strike of the tamping hammer 2 is exactly effectively sensed by the ultrasonic sensor 6, and then immediately the tamping hammer 2 rises to complete this strike. The encoder 12 also monitors that the number of strikes meets the preset value. The signals are all sent to the controller 13, and finally, the controller 13 controls the shaking feeding device 3 to stop feeding.

[0032] A slope 17 is provided between the coal box 1 and the outlet of the shaking feeding device 3. A plurality of pressure plates 18 are arranged along the inclined direction on the slope 17. A pressure sensor 19 is provided at the bottom of the pressure plate 18. The signal output end of the pressure sensor 19 is connected to the signal input end of the controller 13, and the controller 13 is electrically connected to the driving end of the shaking feeding device 3;

[0033] Coal is fed from the outlet of the shaking feeder device 3 and slides down the slope 17 into the coal box 1. Additionally, a pressure sensor 19 is added for sensing. The pressure sensor 19 below the pressure plate 18 senses the sliding weight of the coal. Since multiple pressure plates 18 are arranged at intervals and each sensing feedbacks a signal, it indicates that the feeding and laying of the coal are relatively uniform. When a local pressure sensor 19 does not feedback a signal for a long time (which can be set according to requirements), it indicates uneven feeding. The controller 13 controls the shaking feeder device 3 to stop, avoiding the deterioration of the quality of the coal cake.

[0034] Working principle: When the utility model is in use, the motor 7 drives the rotating wheel 8 to rotate. The rotating wheel 8 drives the connecting rod 9 to move eccentrically, and drives the movable rod 11 to move up and down through the transmission rod 10. The movable rod 11 drives the tamping hammer 2 to move up and down. Specifically, it moves through the limiting rod 20 in the long hole 15. When the limiting rod 20 is at the top of the long hole 15, it pulls the tamping hammer 2 to move up. When the limiting rod 20 is at the bottom of the long hole 15, it compresses the spring 16 and presses the tamping hammer 2 to move down. The tamping hammer 2 can pound the coal cake in the coal box 1.

[0035] As the blended coal is added, the height of the coal cake in the coal box 1 gradually increases. Each time the tamping hammer 2 descends and pounds on the coal cake, the height at which it stays also increases. The tamping hammer 2 can rise through the limiting rod 20 in the long hole 15 to adapt to the increased height of pounding. At this time, the rod of the tamping hammer 2 is still in the process of rising and falling, and the top of the rod of the tamping hammer 2 does not stay at the sensing end of the ultrasonic sensor 6, so the ultrasonic sensor 6 cannot effectively sense. The top structure of the rod of the tamping hammer 2. When the height of the coal cake reaches the requirement, the height at which the tamping hammer 2 pounds and stays, that is, the height of the top of the rod of the tamping hammer 2 is flush with the sensing end of the ultrasonic sensor 6, and can be effectively sensed by the ultrasonic sensor 6, and the signal is sent to the controller 13;

[0036] At the same time, the output end of the motor 7 rotates. For each rotation, the tamping hammer 2 completes 1 pounding, and the encoder 12 records 1 time. From the start of pounding the blended coal to meeting the requirement of the height of the coal cake, the number of times of pounding in the middle is set as a preset value and monitored by the encoder 12. The signal of the number of times of pounding is sent to the controller 13;

[0037] The pounding of the tamping hammer 2 is exactly effectively sensed by the ultrasonic sensor 6, and then the tamping hammer 2 rises to complete this pounding. The encoder 12 also monitors that the number of times of pounding meets the preset value, and the signals are all sent to the controller 13. Finally, the controller 13 controls the shaking feeder device 3 to stop feeding.

[0038] When the height of the coal cake is qualified in this application, it is judged by monitoring the height during the hammering of the induction tamping hammer 2 and the number of hammerings after hammering, and the feeding of the shaking feeding device 3 is stopped in time, so as to achieve the automatic cooperation between the tamping hammer 2 and the shaking feeding device 3, which can adapt to the height requirements of different coal cakes, replace manual labor, reduce errors, accurately control the feeding at the same time, and improve the quality of the coal cake; without manual labor, it can avoid affecting the health of workers.

[0039] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An automatic matching device of a tamping hammer and a feeder, comprising a coal box, a tamping hammer, and a shaking feeder, wherein the tamping hammer is movable up and down and is placed above the coal box, and the shaking feeder is placed on one side of the coal box, characterized in that: It also includes a guide bracket, a fixed bracket, an ultrasonic sensor, a motor, a rotating wheel, a connecting rod, a transmission rod, a movable rod, an encoder, and a controller. The output shaft of the motor is fixed to the wheel center of the rotating wheel, the wheel surface of the rotating wheel is fixed to one end of the connecting rod, the other end of the connecting rod is rotatably connected to one end of the transmission rod, the other end of the transmission rod is connected to one end of the movable rod, the other end of the movable rod is movably inserted into the top end of the tamping hammer rod, and the top end of the tamping hammer rod is provided with a blind hole for inserting the movable rod; Limiting rods are fixed on both sides of the other end of the movable rod, and the side wall of the blind hole is provided with a long hole, and the limiting rod passes through the long hole. A spring is provided in the long hole, and the two ends of the spring are respectively fixed to the bottom end of the long hole and the limiting rod; The guide bracket is in a "well" shape, and the tamping hammer rod is inserted in the middle of the guide bracket; The ultrasonic sensor is fixed on the fixing bracket, and the ultrasonic sensor is placed on one side of the hammer rod of the tamping hammer; The encoder is arranged at one side of the motor, and the sensing end of the encoder is in contact with the output end of the motor; The signal output ends of the ultrasonic sensor and the encoder are connected to the signal input end of the controller, and the controller is electrically connected to the driving end of the shaking feeding device.

2. The automatic coordination device of a tamping hammer and a feeder according to claim 1, characterized in that: A slope is provided between the coal box and the outlet of the shaking feeding device, and a plurality of pressure plates arranged along the inclined direction are provided on the slope. A pressure sensor is provided at the bottom of the pressure plate, and a signal output end of the pressure sensor is connected to a signal input end of the controller, and the controller is electrically connected to a driving end of the shaking feeding device.

Images