CN113769823B

CN113769823B - Breaker system containing alternating current input current surge suppression circuit

Info

Publication number: CN113769823B
Application number: CN202110737066.9A
Authority: CN
Inventors: 乐声滨; 陈涛
Original assignee: Nanchang Mineral Systems Group Co Ltd
Current assignee: Nanchang Mineral Systems Group Co Ltd
Priority date: 2021-06-30
Filing date: 2021-06-30
Publication date: 2023-04-25
Anticipated expiration: 2041-06-30
Also published as: CN113769823A

Abstract

The invention discloses a crusher system with an alternating current input current surge suppression circuit, which is used for monitoring the running state of a main shaft in real time and analyzing signals, realizing accurate alarm and corresponding adjustment when working conditions are bad, and meanwhile, the device arranged on a feed hopper, a movable cone lining plate and a static cone lining plate of the crusher has certain dustproof and vibration-proof functions. The invention improves the reliability and the accuracy of the alarm system of the inertia cone crusher.

Description

Breaker system containing alternating current input current surge suppression circuit

Technical Field

The invention belongs to the technical field of alarm, and particularly relates to an inertia cone crusher system.

Background

The inertia cone crusher is a crushing mechanical device with high efficiency and large crushing ratio based on the lamination crushing principle and inertia impact extrusion crushing.

The working mechanism of the body of the inertia cone crusher consists of a fixed cone and a movable cone, wear-resistant lining plates are attached to the cones, and a crushing cavity is formed in the space between the lining plates. The dynamic cone shaft is inserted into the shaft sleeve, the rotary motion of the motor is transmitted to the vibration exciter fixed on the shaft sleeve through the transmission mechanism, and inertial force is generated when the vibration exciter rotates, so that the dynamic cone is forced to do rotary swing motion around the spherical center of the spherical tile. In a vertical plane, when the movable cone approaches the fixed cone, the material is impacted and extruded to be crushed, and when the movable cone leaves the fixed cone, the crushed product is discharged from the discharge hole due to dead weight.

The operating conditions of the crusher depend on the feeding situation of the crushing chamber and whether or not the feeding contains iron. The vibration of the crusher is enlarged, so that a certain safety risk is achieved; when the crushing cavity passes iron, the iron piece is clamped between the movable cone and the fixed cone, the speed of the main shaft suddenly drops to zero, the pressure of the crushing cavity is increased, the hydraulic pump discharges oil to reduce the iron piece discharged by the main shaft, and the damage to the crusher is extremely large in the process. The optimal working efficiency of the crusher requires that the main shaft is kept within a certain rotational speed range and that vibrations generated by the work are kept within a certain amplitude.

At present, many inertia cone crushers are provided with an electric control system, but an alarm device in the prior art is usually arranged at the position of a hydraulic system of the crusher, and the alarm is indirect and cannot warn abnormal working conditions in time. Meanwhile, the electric control system in the prior art cannot realize redundant alarm, and cannot realize simultaneous detection of a plurality of parameters when the crusher works.

Disclosure of Invention

The invention aims to overcome the defects of the prior art and provide a crusher alarm system with an alternating current input current surge suppression circuit.

The technical aim of the invention is realized by the following technical scheme: 1. a breaker system with an alternating current input current surge suppression circuit comprises a sampling module, an electric control module, an alarm module and a driving module. The method is characterized in that: the sampling module comprises a sampling device, the sampling device comprises a rotating speed and amplitude alarming device and a pressure alarming device, and the sampling module samples an amplitude signal, a rotating speed signal and a pressure signal; the electronic control module is a main control console and analyzes signals from the sampling module; the alarm module comprises an audible and visual alarm device, and the alarm module sends out a rotating speed or amplitude alarm according to a signal from the electric control module; the driving module comprises a driving circuit and a motor, and drives the corresponding motor according to signals from the electric control module.

The rotating speed and amplitude alarming device comprises a fixed table, a pipeline, a power cavity, a lubrication cavity, an elastic energy accumulator, a sliding block, a baffle plate, a metal rod and a metal ring. The fixed table is fixedly arranged on the main shaft through a key; the lubrication cavity is connected in the cavity of the fixed table through threads, the lubrication cavity is connected with the power cavity into a whole through a pipeline, a straight-through one-way valve is arranged in the pipeline, and the power cavity is fixed on the movable cone supporting disc through threads; the elastic energy accumulator is arranged in the pressure cavity, the contact surfaces of the power cavity and the elastic energy accumulator are made of flexible materials, and the elastic energy accumulator comprises a pressure alarm and a rubber air spring; the pressure alarm unit is arranged in the air cavity; the metal ring is arranged on one side of the pipeline, which is close to the lubrication cavity, through threads; one end of the metal rod is connected to the air cavity, and the other end of the metal rod passes through the metal ring but is not contacted with the lubrication cavity; the baffle is internally provided with a circuit loop which comprises an amplitude signal emitter, and the baffle is fixedly connected with the inner side outer wall of the pipeline.

The crusher comprises a hopper, an adjusting ring, a supporting ring, a movable cone, a static cone lining plate, a movable cone supporting disc, a universal coupling, a damping spring, an eccentric vibration exciter and a shell, wherein the hopper is arranged on the inclined upper surface of the adjusting ring, the fixed cone lining plate is arranged below the inclined upper surface of the adjusting ring, the movable cone lining plate is arranged on the side surface of the movable cone, the side surface of the adjusting ring is connected with the shell through the supporting ring, the shell is arranged on a chassis, the damping spring is arranged between the shell and the chassis, the movable cone is arranged on the movable cone supporting disc, a main shaft is arranged in the movable cone supporting disc, one end of the main shaft is connected with the movable cone, and the other end of the movable cone main shaft is connected with a transmission shaft arranged at the bottom side of the movable cone supporting disc through the universal coupling. And the main shaft is provided with an eccentric vibration exciter, and the transmission shaft is connected with a driving device.

The pressure alarm device comprises a storage table, an unclosed steel ring and a pressure sensing loop, wherein the storage table is internally provided with the unclosed steel ring and the pressure sensing loop through threaded connection at the bottom of the static cone lining plate, and the steel ring stretches out a part.

The master control station is a PLC, and a wireless signal receiver is arranged on the PLC.

The alarm device is an audible and visual alarm, and sends out different audible and visual alarms according to the received signals.

Wherein, the drive arrangement drives corresponding motor according to the signal.

The feeder hopper of breaker is the roll form body, and the feeder hopper inner wall is equipped with the fine hair layer, the feeder hopper includes roll form layer, sliding channel and sliding strip, the sliding strip can slide along sliding channel, roll form outer wall has the gear strip, the gear strip is driven by the gear, the gear is driven by the motor.

Wherein, install the buffer layer through threaded connection on the movable cone welt of breaker, install the wearing layer through the hinge on the buffer layer, be provided with columniform flexible layer on the wearing layer, the flexible layer sets up trompil and snap-fastener, can pass through the extrusion snap-fastener.

Wherein the driving circuit comprises an alternating current surge suppression circuit;

the alternating current surge suppression circuit is composed of a dual-mode input reactance EM1, capacitors C1, C2 and C3 and a capacitor C4, when surge voltage and surge current occur to an external alternating current power supply, the capacitor C1 and the capacitor C2 are used for suppressing the surge voltage, and the dual-mode input reactance EM1 is used for suppressing the surge current.

The invention has the beneficial effects that:

1. according to the invention, through an integrated mechanical structure, the monitoring of the rotation speed of the main shaft and the vibration amplitude of the crusher is realized, so that the monitoring of the running state of the crusher is completed.

2. Through set up corresponding device on feeder hopper, move awl welt and quiet awl welt, realized the dustproof vibration that restraines to the breaker.

Drawings

FIG. 1 is a schematic diagram of the operation of the present invention;

FIG. 2 is a schematic diagram of the structure of the rotation speed and amplitude alarm device of the present invention;

FIG. 3 is a schematic diagram of a boss structure of the present invention;

FIG. 4 is a schematic view of a slider and a metal rod according to the present invention;

FIG. 5 is a schematic view of the structure of the straight-through check valve of the present invention;

FIG. 6 is a schematic circuit diagram of an amplitude signal alarm loop of the present invention;

FIG. 7 is a schematic view of the structure of the crusher according to the present invention;

FIG. 8 is a front view of a dustproof vibration damping device arranged in a movable cone liner plate in the invention;

FIG. 9 is a top view of a dustproof vibration damping device arranged in a movable cone liner plate in the invention;

FIG. 10 is a schematic view of the drive structure of the feed hopper of the present invention;

FIG. 11 is a schematic view of the structure of the feed hopper of the present invention;

FIG. 12 is a schematic view of a structure of the non-closed steel ring in the invention;

FIG. 13 is a schematic view of the overall structure of the present invention;

fig. 14 is an ac current surge suppression circuit diagram of the present invention.

In the figure, 1, a main shaft; 2. a fixed table; 3. a pipe; 4. a power cavity; 5, a straight-through one-way valve; 6. a slide block; 7. a metal rod; 8. a baffle; 9. A metal ring; 10. a screw hole; 11. a key slot; 12. a cavity; 13. an amplitude signal transmitter; 14. an elastic accumulator; 15. a pressure alarm; 16. a lubrication chamber; 17. a fixed end; 18. the steel ring is not closed; 19. a feed hopper; 20. a movable cone lining plate; 21. a buffer layer; 22. a wear-resistant layer; 23. a flexible layer; 24. a snap fastener; 25. opening holes; 26. a hinge; 27. a motor; 28. a gear; 1901. a gear strip; 1902; a feed inlet; 1903. a roll layer; 1904. a sliding channel; 1905, sliding bar; 1801. a storage table; 1802. the steel ring is not closed; 29. an eccentric vibration exciter; 30. an adjusting ring; 31. a support ring; 32. a housing; 33. a damping spring; 33. a chassis; 34. a belt pulley; 35. a universal coupling; 36. a transmission shaft; 37. a movable cone supporting disc; 38. and driving the motor by transmission.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers indicate identical or functionally similar elements. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated. The present invention is not limited to the number of constituent elements, the shapes of the constituent elements, the size ratios of the constituent elements, and the relative positional relationship of the constituent elements described in the drawings.

In addition, numerous specific details are set forth in the following description in order to provide a better illustration of the invention. It will be understood by those skilled in the art that the present invention may be practiced without these specific details. In other instances, well-known methods, procedures, components, and circuits have not been described in detail so as not to obscure the present invention.

As shown in fig. 1, the invention provides a work flow chart of an electric control system related to an inertia cone crusher, and the work flow chart timely converts bad working conditions into a rotation speed alarm signal and an amplitude alarm signal through a rotation speed and amplitude alarm device, and sends out an alarm in time after an audible and visual alarm module receives the signals.

As shown in fig. 2, the device comprises a fixed table 2, a pipeline 3, a power cavity 4, a sliding block 6, a metal rod 7, a baffle plate 8, a metal ring 9, an elastic energy accumulator 14 and a lubrication cavity 16. As shown in fig. 3, the fixed table is fixedly connected to the main shaft through a key slot 11, a cavity 12 of the fixed table is provided with a screw hole 10 for fixedly connecting with the lubrication cavity 4, after the crusher starts to run, a driving motor 38 drives a shaft 36, the shaft 36 drives the main shaft 1 through a universal joint 35, the main shaft 1 eccentrically rotates under the action of an eccentric vibration exciter 29, and a rotating speed and amplitude alarm device moves along with the main shaft 1. The slider 6 slides along the metal rod 7 by centrifugal force, as shown in fig. 4, causing the elastic accumulator 14 to be pressed. The faster the speed, the greater the pressure created. The elastic energy accumulator 14 is provided with a pressure alarm 15, which is arranged in a safety range, namely between a first alarm value and a second alarm value, and sends out a rotating speed signal when the pressure is lower than the first alarm value or higher than the second alarm value.

In the process, as the contact surfaces of the elastic energy accumulator 14 and the power cavity 4 are made of flexible materials, the main shaft moves in an eccentric rotation mode when the crusher operates, the pressure generated by the sliding block can change periodically, and after the lubricating oil in the lubricating cavity generates periodic pressure, the lubricating oil continuously lubricates the main shaft 1 through the pipeline 3 into the lubricating cavity 16 under the action of the straight-through one-way valve 5, so that a certain maintenance effect is achieved.

The baffle 8 is mounted in the cavity formed by the pipe by a threaded connection, in which an amplitude signal emitter 13 is arranged. The slider can be prevented from touching the metal ring.

During the operation of the crusher, certain vibrations are generated, which vibrations are amplified by the non-stationary end of the metal rod 7, which is shaken therewith. The base of the metal ring 9 is provided with screw holes, the metal ring is fixedly arranged on the pipeline 3 through the screw holes, the radius of the screw holes is set to be the maximum value generated by vibration when the crusher normally works, and when the crusher vibrates too much, the metal rod 7 is contacted with the metal ring 9, so that a loop in the baffle 8 is connected, and the amplitude signal transmitter 13 sends out an amplitude signal as shown in fig. 6.

The electronic control module processes the rotation speed signal or the amplitude signal after receiving the rotation speed signal or the amplitude signal, and in one possible implementation manner, the electronic control module can judge whether the crusher has a poor working condition or not, and accordingly sends a corresponding alarm signal to the audible and visual alarm module.

An audible and visual alarm is arranged in the audible and visual alarm module, and different lights and voice prompts are sent out according to the unused alarm signals.

The pressure alarm device 18 comprises a containing table 1801, an unclosed steel ring 1802 and a pressure sensing loop, wherein the containing table 1801 is internally provided with the unclosed steel ring 1802 and the pressure sensing loop through threaded connection at the bottom of the static cone lining plate, and the steel ring stretches out a part. In order to keep the optimal power of the crusher, the rock in the crushing cavity is required to be ensured to fall in a certain component, the rock is subjected to the pressure of the non-closed steel ring, when the pressure is overlarge, the condition that the crushed objects in the crushing cavity are too much is indicated, at the moment, a pressure signal is sent out through a pressure sensing loop, an electronic control module sends out a corresponding driving signal after receiving the corresponding signal, and the signal drives a motor in a storage table 1801 to shrink so as not to close the steel ring 1802, so that cavity cleaning is accelerated; the fact that the pressure is too small indicates that the crushed objects in the crushing cavity are too small, at the moment, a pressure signal is sent out through the pressure sensing loop, the electronic control module sends out corresponding driving signals after receiving corresponding signals, the motor in the storage table 1801 is driven to extend, the steel ring 1802 is not closed, and the falling speed of the crushed objects is reduced.

The feeder hopper 19 of breaker is the roll form body, and the feeder hopper inner wall is equipped with fine hair layer 1906, the feeder hopper 19 includes roll form layer 1903, slip passageway 1904 and slip strip 1905, slip strip 1905 can follow slip passageway 1904 and remove, the feeder hopper 19 outer wall has gear strip 1901, the gear strip is driven by gear 28, gear 28 is driven by motor 27. When the feeding is insufficient, a large amount of dust can be raised after the small broken stone enters the feeding hopper 19, at this time, the motor 27 can be driven to drive the gear 28, and the gear enables the sliding bar 1905 to move along the sliding channel 1904 through the gear bar 1901 on the outer wall of the feeding hopper, so that the feeding is concentrated, the raised dust is less, and the velvet layer 1906 arranged on the inner wall of the feeding hopper 19 can also effectively adsorb the dust.

The movable cone lining plate 20 of the crusher is provided with a buffer layer through threaded connection, the buffer layer 21 is provided with a wear-resistant layer 22 through a hinge 26, the wear-resistant layer is provided with a cylindrical flexible layer 23, the flexible layer 23 is provided with an opening 25 and a snap fastener 24, and the snap fastener 24 can be extruded through extrusion. In order to achieve a better dust removal effect, a proper amount of liquid can be sprayed into the feed hopper 19, the flexible layer 23 can absorb the water drops, after the crusher starts to operate, the wear-resistant layer 22 plays a good role in wear prevention, meanwhile, broken stones squeeze the snap fasteners 24, and water in the flexible layer 23 can be squeezed out to achieve the dust removal effect.

The alternating current surge suppression circuit 1 is used for suppressing surge of an alternating current input power supply, and is easy to cause insufficient stability of the alternating current input power supply of a crusher due to lightning stroke or start-stop of high-power electric equipment, and the input power supply can generate surge voltage or surge current, so that breakdown and burnout of the switching power supply circuit are easy to cause. The invention adopts a choke reactance to realize suppression of surge of an alternating current input power supply, a specific circuit is composed of a dual-mode input reactance EM1 and capacitors C1, C2, C3 and C4, when surge voltage and surge current occur in an external alternating current power supply, the capacitors C1 and C2 are used for suppressing the surge voltage, and the dual-mode input reactance EM1 is used for suppressing the surge current.

Claims

1. The utility model provides a breaker system that contains alternating current input current surge suppression circuit, includes sampling module, automatically controlled module, alarm module and drive module, its characterized in that: the sampling module comprises a sampling device, the sampling device comprises a rotating speed and amplitude alarming device and a pressure alarming device, and the sampling module samples an amplitude signal, a rotating speed signal and a pressure signal; the electronic control module is a main control console and analyzes signals from the sampling module; the alarm module comprises an audible and visual alarm device, and the alarm module sends out a rotating speed or amplitude alarm according to a signal from the electric control module; the driving module comprises a driving circuit and a motor, and drives the corresponding motor according to signals from the electric control module; the rotating speed and amplitude alarming device comprises a fixed table, a pipeline, a power cavity, a lubrication cavity, an elastic energy accumulator, a sliding block, a baffle, a metal rod and a metal ring, wherein the crusher comprises a hopper, an adjusting ring, a supporting ring, a movable cone, a static cone lining plate, a movable cone supporting disc, a universal coupling, a damping spring, an eccentric vibration exciter and a shell, and the fixed table is fixedly arranged on a main shaft through keys; the lubrication cavity is connected in the cavity of the fixed table through threads, the lubrication cavity is connected with the power cavity into a whole through a pipeline, a straight-through one-way valve is arranged in the pipeline, and the power cavity is fixed on the movable cone supporting disc through threads; the elastic energy accumulator is arranged in the pressure cavity, the contact surfaces of the power cavity and the elastic energy accumulator are made of flexible materials, and the elastic energy accumulator comprises a pressure alarm and a rubber air spring; the pressure alarm is arranged in the air cavity; the metal ring is arranged on one side of the pipeline, which is close to the lubrication cavity, through threads; one end of the metal rod is connected to the air cavity, and the other end of the metal rod passes through the metal ring but is not contacted with the lubrication cavity; a circuit loop is arranged in the baffle and comprises an amplitude signal emitter, and the baffle is fixedly connected with the inner outer wall of the pipeline; the hopper is arranged on the inclined upper surface of the adjusting ring, a fixed cone lining plate is arranged below the inclined upper surface of the adjusting ring, a movable cone lining plate is arranged on the side surface of the movable cone, the side surface of the adjusting ring is connected with the shell through the supporting ring, the shell is arranged on the underframe, a damping spring is arranged between the shell and the underframe, the movable cone is arranged on a movable cone supporting disc, a main shaft is arranged in the movable cone supporting disc, one end of the main shaft is connected with the movable cone, the other end of the main shaft is connected with a transmission shaft arranged at the bottom side of the movable cone supporting disc through a universal coupling, an eccentric vibration exciter is arranged on the main shaft, and the transmission shaft is connected with the driving device; the pressure alarm device comprises a storage table, an unclosed steel ring and a pressure sensing loop, wherein the storage table is internally connected with the bottom of the static cone lining plate through threads, the unclosed steel ring and the pressure sensing loop are arranged in the storage table, and the steel ring extends out of a part of the storage table; the feeder hopper of breaker is the roll form body, and the feeder hopper inner wall is equipped with the fine hair layer, the feeder hopper includes roll form layer, sliding channel and sliding strip, the sliding strip can slide along sliding channel, roll form layer outer wall has the gear strip, the gear strip is driven by the gear, the gear is driven by the motor.

2. A breaker system having an ac input current surge suppression circuit according to claim 1, wherein: the master control station is a PLC, and a wireless signal receiver is arranged on the PLC.

3. A breaker system having an ac input current surge suppression circuit according to claim 1, wherein: the alarm device is an audible and visual alarm, different audible and visual alarms are sent out according to the received signals, and the driving device drives the corresponding motor according to the signals.

4. A breaker system having an ac input current surge suppression circuit according to claim 1, wherein: the movable cone lining plate of the crusher is provided with a buffer layer through threaded connection, the buffer layer is provided with a wear-resisting layer through a hinge, the wear-resisting layer is provided with a cylindrical flexible layer, and the flexible layer is provided with an opening and a snap fastener.

5. A breaker system having an ac input current surge suppression circuit according to claim 1, wherein: the driving circuit comprises an alternating current input current surge suppression circuit.

6. A breaker system having an ac input current surge suppression circuit as recited in claim 5 wherein: the alternating current input current surge suppression circuit is composed of a dual-mode input reactance EM1, capacitors C1, C2 and C3 and a capacitor C4, when surge voltage and surge current occur to an external alternating current power supply, the capacitor C1 and the capacitor C2 are used for suppressing the surge voltage, and the dual-mode input reactance EM1 is used for suppressing the surge current.