SU1049103A1 - Apparatus for controlling the dimension of discharge slot of cone crusher - Google Patents

Abstract

1. DEVICE FOR MONITORING THE SIZE OF THE CONF CRUSHER UNLOADING Slot, containing a contact-signal converter installed in a through-hole made in the crusher body and connected to the first input of the measuring circuit, the first output of which is connected to the first input of the registration block, characterized by the fact that in order to increase the accuracy of control, it is equipped with at least one additional contact-signal converter, two mechanisms for displacing the transducers, and a position control unit m and a matching unit, with an additional contact-signal converter connected to the second input of the measuring circuit, the second output of which is connected to the input of the position control unit, one output of which is connected to the second input of the registration unit, and the other output of the position control unit block, | At the output of the cat. Expensive, the mechanisms for moving the transducers are connected. O. 4 CO 00

Description

2. The device according to claim 1, of tl and h a f c e e so that each contact-signal transform; The body is made in the form of a rod with grooves along its length, one end of which is from the inner cone.

The crusher has protrusions for interacting with the linings of the inner cone and the crusher body, and the other end of the rod extending beyond the body is kinematically connected with the mechanisms of one of the transducers.

The invention relates to the crushing of various materials and can mainly be used in the building materials industry, in ferrous and non-ferrous metallurgy to regulate the size of the large size crushing cone crusher.

A device for adjusting the size of the discharge gap of a cone crusher is known, which contains a tracking system that produces control signals to a hydraulic system for adjusting the position of the inner cone 1.

The disadvantage of this device is the need to set zero — every time when adjusting the cone position. The zero setting operation is associated with an internal lift. cone and landing it on the bowl of the outer cone, which is realized by ori increasing pressure of oil in the hydraulic system. And such an operation with a slight deviation from the norm can lead to a violation of the mechanical strength of the fitting units of the lining plates of the cones. Another disadvantage is that the ellipticity of the inner and outer cones with such regulation can hardly be taken into account, which reduces the accuracy of the adjustment.

Closest to the invention to the technical essence is a device for controlling the size of the discharge gap of a cone crusher containing a contact-signal one. converter installed in CJ geiaHOM ofg pcfifH, amp; g | non8HPM in

“© gnygg shtptp, and shklyukyynyy to the pioneer and“ dimensional ”first output of which is connected to the first INPUT of the registration block 12}.

A disadvantage of the known device is., It is functional. limitations due to the fact that in. There is no possibility that the converter can be moved in the hole of the crusher body with its aele and its removal in the crushing chamber during operation; the crusher, the design of the inverter, the actuator also does not provide for the control of the position of the outer cone, which

It does not allow to determine the displacement of the transducer within the inner and outer cones.

In addition, the device does not allow the control of a gap in several points of the crushing chamber. These drawbacks do not allow the use of a device to control the slotted cone eccentric crusher.

The aim of the invention is to improve the accuracy of control. .

This goal is achieved by the fact that the device, to control the size of the discharge gap of a cone crusher, contains a contact-signal converter installed in a through-hole made in the crusher body and connected to the first input of the measuring circuit, the first output of which is connected to the first input of the recording unit, equipped with at least one additional contact-signal converter, two mechanisms for displacing the transducers, a position control unit and matching unit, and .lny konitaktno-signal: inverter

connected to the second input meter

(NOI of the circuit, the second output of which is connected to the input of the position control unit, one output of which is connected to the second input of the registration unit, and another output of the position control unit is connected to the input of the matching unit, the input of which is connected;; mechanisms for moving the converters.

Also © © | KSHMY K © yTA tne dir «y§L1, n npg © gtii © saTi fe i. shchita shta Ry @ @ poles © its length, one end of which is at the axis of the inner cone of the crusher has protrusions .dl. interactions with the lining of the inner cone and body. : crushers, and the other end of the rod; you: walking outside the hull, Kiniema; associated with the transfer mechanisms of the transducers. i. The use of the device makes it possible to increase the measurement accuracy, which is achieved as a result of

cone conductivity, also provides

An increase in reliability is achieved, which is achieved by eliminating the operation of removing the inner cone prior to contact with the outer cone.

Fig. 1 is a schematic diagram of the device and shows its 5 connections with the crusher; figure 2 -. a contact-signal converter and its connections with the transfer mechanism and crusher elements; in FIG. 3, an extracting rod of a converter is 10 liters; FIG. 4 is a view A of FIG. 3; Fig. 5 is a microprocessor-based position control system, real unit diagram.

The device (Fig. 1) contains. g at least two contact-signal converters 1, measuring scheme 2, block 3 registration,. position control unit 4, matching unit 5 and displacement mechanism 6, kinematically connected to preg formaler 1 ' and 1, each of which is designed as a measuring rod 7 placed in the through-hole 8 of the crusher body 9. One end of tytangi 7 from the inside. 5 of the cone 10 is provided with a protrusion 11 g. located along the axis of the rod 7 to interact with the lining 12 (Fig. 2) of the inner cone 10, a. also eccentrically mounted, 30 stop 13, pre; } designated to interact with the lining 14 of the body 9 of the crusher. The other end of the rod 7 extending beyond the limits of the housing 9 is connected with the plunger sensor 15. On the 35 side surfaces of the rod 7 along its length there are grooves (grooves) 16 and 17 (fig. 3 and 4). In addition, the rod 7 provided with a symbolic part 18 for visual reading of its “extension”, moreover, when the cone 10 is moving. entering the crusher does not have a force on it.

The movement mechanism b includes (Fig. 2) power units 19-21,.: The rod 7g ' designed to move along and rotate around the axis as well as to lock it. In caryl: block 19 may be. sgngjib, (wide, rod 22 lff t © P © F © by means of a lever 23 pivotally connected to the clutch 24 of the boom 7. The power block 20 is connected by a guide v 55 retainer 25 for interacting with the bar 7. The power unit 21 of the axstricchio interacts with the bar ( not shown).

The basis of block 4 is the control pos. (Q, built on the basis of standard ones.

subunits, constitutes a micro-computer 26 (Fig. 5), for example, a CM 1800 with permanent and random access memory. It is connected to its information bus-multi-j.

channel (by the number of sensors 15) data input unit 27, which allows converting the analog signal into digital form and multiplexing data from sensors 1. Control panel 28 is connected to the microcomputer bus and recording unit 3 is connected to its outputs and a three-channel digital-analogue transformer 29 / outputs of which are connected to the inputs of the three-channel matching unit 5 (the microcomputer interface unit with peripheral power devices), to the outputs of which the power units 1921 of displacement mechanisms 6 are connected.

The device works as follows. .

The principles of operation of the device are determined by the organization of motion control. This organization is based on the fact that the control panel 28, in accordance with the program stored in the memory of the microcomputer 26, sequentially selects individual specific commands to control the components of the microcomputer, organizes the work of the input-output units 21 to 29 Transmits a command to the memory for storing, as well as information from sensors 15, and quickly processes the measurement results. For the production of Measurements, the crusher is stopped.

The specific operation of the device is divided into four stages. At the first stage, the task of moving the rod 7 from the initial position to the contact with the lining 12 of the cone 10 is realized. On the basis of the task, i.e. -the choice of the appropriate program by the operator, the control panel 28 generates commands for the corresponding control of the microcomputer logic circuits, the signals from the output of which are fed to the input of the digital-analogue conversion of the bodies 29, the analogue signal of which is fed to the input of the unit 5, the switching control. signals to force blocks 19 and 20 of the movement mechanisms 6. Then the rod 22 of the power unit 19 (Fig. 2) and the lever 23 connected with it, acting on the clutch 24, move the rod 7 from its initial position (indicated by the dash-dotted line in Fig. 2) until the protrusion is in contact. 11 with lining 12 (figure 1). During the movement of the rod 7 in the direction to the cone 10, it is also rotated by angle 1, which is achieved by the interaction of the guide of the power unit 20 with the promed filament 16. At the same magnitude as the rod 7, it is rigid; the most connected: plunger of the sensor 15, the signal from the output of which is supplied to the measuring circuit 2f from the output of which the signal goes to the input of the recording unit 3 for display. From the output of the measuring circuit 2, the signal through the data input unit 27 is fed to the input of the micro-computer, which causes nulling. an appropriate microcomputer counter 26.. . At the second stage, the tasks of moving the rod 7 from the position shown in Fig. 1 to the position shown in Fig. 2 and meeting such a condition are realized. The stop 13 of the rod 7 contacts with. lining 14 housing sa 9 crushers. This operation is also carried out on the basis of an appropriate task to the control panel 28, and then the micro-computer generates commands to turn off the power unit 20, and the guide is removed from the groove 16 ,. and also for switching on the power units 19 and 21, realizing the movement of the rod 7 along the straight groove 17 and moving the rod 7 from the housing 10 to the contact of the stop 13 with the lining 14 of the crusher cone. Signal mismatch. The sensor 15, corresponding to this movement x, is switched by measuring circuit 2 to the input of the registration unit 3 to display the value x and the bus for transfer to the microcomputer 26. In the third stage, the operator's task is also used to calculate the measurement results. In this case, the micro-computer reads the contents of the accumulator, processes it and performs the corresponding calculation. For example, when using two converters 1, the average size of the discharge gap is determined by the formula. . S (a -f 51122-), where a is a constant, which takes into account the design feature of converter 1 (fig. 3); x and x 2 are displacement values measured with two transducers; angle, taking into account the actual location of the rod 7 in relation to the generatrix of the cone, 10 (figure 2). The result is a computation on the bus pe- ,. Edited to block 3 registration. At the fourth stage, after the completion of the measurement process, the rod 7 is reset to its initial position and is fixed. These operations are implemented. by programmable movement of the rod 7 in the reverse order of the given; I. . “The proposed device allows a coarse crusher to increase productivity by 1.5% due to the production of a finer product while maintaining a normalized gap.

Claims (2)

1. DEVICE FOR CONTROL OF THE SIZE OF THE UNLOADING CRACK OF THE CONE CRUSHER, containing a contact-signal converter installed in a through hole made in the crusher body and connected to the first input measure £ s n ♦ I I j of the main circuit, the first output of which is connected to the first input of the registration unit, characterized in that, in order to increase the accuracy of control, it is equipped with at least one additional contact-signal converter, two mechanisms for moving the converters, a position control unit and a matching block, with an additional contact-signal converter connected to the second input, the output of the block, the output by the input of the registration block, and the other _{t the} output of the block; position control is connected to the input of the matching block eye, the output of which is connected to the movement mechanisms of the transducers. measuring circuit, the second of which is connected to the input control position, one of which is connected to the second 2. The device according to claim 1, with the fact that each contact-signal converter is made in the form of a rod with grooves along its length, one end of which. from the side of the inner cone of the crusher has protrusions for interacting with the linings of the inner ronus and the crusher body, and the other end of the rod extending outside the casing is kinematically connected with the movement mechanisms of the transducers.