CN2808296Y - Two-grade alarming protector for test control of ball mill bearing bush - Google Patents

Abstract

The utility model discloses an alarming protector for test and control of a ball mill bearing shell. The utility model is composed of a shell 1; a power switch 6, an alarm volume adjustment potentiometer 14, a fuze 3, a power light 7 and alarm indicating lamps 5, 5' are installed on a front slanting panel of the shell 1; a wire connecting terminal 15 is installed on a back panel; an alarm 8, a temperature probe 2 and a temperature-sensing switch 11 are installed on an upper panel of the shell (1); leading wires connected with the temperature-sensing switch are wound on a coil winder 12 in the shell 1. The protector not only can observe the condition of the temperature rising when the bearing shell is in running, but also can realize secondary alarming and protecting with automatic power-off for closing down. The first alarming gives staff enough time to protect, and the second alarming can automatically stop for protection to prevent serious accidents. In addition, the utility model has the advantages of compact structure, small volume, low power consumption, stable operation and reliable performance. The utility model can be widely used for bearing shell protection.

Description

Ball grinder bush observing and controlling secondary alarming protector

Technical field

The utility model relates to a kind of bearing shell electronic protection, particularly a kind of ball grinder bush observing and controlling secondary alarming protector.

Technical background

The bearing shell of ball mill bearing generally all adopts babbit to make, in the normal operation of ball mill, when the lubricating oil undersupply occurring, or the cooling water undersupply, or enter foreign material in the poorly sealed lubricating oil of bearing cap, all can cause on-stream bearing bush temperature to rise too high, and the fusing point of babbit is lower, general when temperature rises to 70-80 ℃, just major accident might take place, particularly the bigger bearing shell of some specifications, the big bearing shell on the autogenous tumbling mill for example, its inside diameter reaches 1 meter more than, and it is low to scribble one deck fusing point on working face, and the high babbit of wearability, in the grinding machine running, the bearing shell working face is given birth to heat because of friction, temperature raises, and when temperature is increased to the babbit fusing point, begins fusing, babbit-lined metal is scrapped, repair difficulty, severe patient damages whole macro-axis, causes the tremendous economic loss.

Summary of the invention

It is a kind of when the babbit-lined metal temperature is increased to certain temperature range and temperature extremes that the purpose of this utility model is to provide; adopt the prevention of different tones to report to the police and the pressure warning respectively; when prevention is reported to the police; the staff can be timely, careful oiling or add water and carry out cooling processing; when forcing to report to the police; can first autostop, check the reason that is difficult to lower the temperature then, thus the ball grinder bush observing and controlling secondary alarming protector of avoiding major accident such as tile kilning to take place.

For reaching above purpose; the technical scheme that the utility model adopted is: this ball grinder bush observing and controlling secondary alarming protector; by housing; temperature probe; fuse; circuit board; power supply indicator and alarm lamp; power switch; auxiliary reclay constitutes; it is characterized in that housing is a rectangular box; its front face is a skewback; on front face, establish power switch; the warning volume control potentiometer; fuse; power supply indicator and alarm lamp; on the plate face of back, establish power supply and shut down the control binding post; alarm is established at upper face middle part at housing; establish temperature probe patchhole and temperature detect switch (TDS) patchhole at housing upper face rear portion; temperature probe and temperature detect switch (TDS) are inserted in respectively in temperature probe patchhole and the temperature detect switch (TDS) patchhole; connected lead is wrapped on the interior winder of housing; when inserting temperature probe and temperature detect switch (TDS) in housing, lead is rolled automatically.The utility model is also implemented by following measure: the alarm temperature of described alarm divides two grades, be respectively＞50 ℃ and＞80 ℃, promptly when bearing bush temperature reaches 50 ℃, the for the first time single tone low frequency prevention of beginning is reported to the police, allow the staff careful perform oiling, adding water conservancy project does, or adopt other cooling measures, if temperature reduces, then chimes of doom stops, if temperature continues to rise, when bearing bush temperature＞80 ℃, then send the different pressure chimes of doom of two kinds of height of the similar ambulance sound, automatic control equipment is shut down simultaneously, the staff is refueled, add water, maintenance or other measures, have only after temperature descends, circuit can allow to start shooting once more, can not guarantee major accident; Described winder is made of wind spring, reel, fixed mount and fixed axis, and lead is wrapped on the reel, and the end of reel is provided with the ring-type rotary contact of lead, contacts with fixed contact on the fixed mount, and fixed mount is fixed on the base plate in the housing; Described temperature detect switch (TDS) is made of bimetal leaf inductor and ceramic insulation tube, the bimetal leaf inductor is a semi-annular shape, be contained in the front end in the ceramic insulation tube, the contact is fixed on the inwall of ceramic insulation tube, the outer end of a lead is connected with positive source, and the outer end of another root lead is connected with auxiliary reclay; The operation principle of this ball grinder bush observing and controlling secondary alarming protector is shown in circuit diagram, and it reaches 50 ℃ of circuit parts that prevent to report to the police is known technology, and in circuit, temperature probe is the thermistor R of a positive temperature coefficient _t, potentiometer RW ₁Be used to preset the temperature range of normal operation, make it when being lower than 50 ℃, phase inverter F output low level, alarm is sounding alarm not, when temperature rises to 50 ℃ of control points, because thermistor R _tResistance increase multiple tube V ₄, V ₅Conducting, relay J ₁Adhesive, alarm B sends the chimes of doom of single tone, like this, on the basis that surpasses 50 ℃ of warnings, increases and forces to report to the police, and promptly after reporting to the police more than 50 ℃, as if not cooling in time, or does not fall temperature after handling and comes, then by temperature detect switch (TDS) K ₂When reaching 80 ℃, connect J ₂, IC ₂, IC ₃The raise one's voice chimes of doom of alarm of similar ambulance is sent in work, and simultaneously by J _2-2Connect auxiliary reclay KA, the motor dead electricity is shut down; Temperature detect switch (TDS) K ₂Adopt the bimetal leaf inductor, by adjusting, can make it when reaching 80 ℃, the contact is connected, thereby directly control is shut down.The utility model volume is less, as long as element is good, it is errorless to install, need not adjust and can use.When using the utility model, need to make a call to a cave that 1-3mm is dark in a side of bearing shell earlier, with temperature probe insertion and fixing, simultaneously also make a call to a cave that 1-3mm is dark at the opposite side of bearing shell, with temperature detect switch (TDS) insertion and fixing, turn on the power switch, start ball mill and get final product.

The beneficial effects of the utility model are: the intensification situation that can not only in time observe bearing shell be in operation; and can realize that secondary is reported to the police and cut off the power supply stoppage protection automatically; and secondary alarm sound difference; report to the police for prevention for the first time, can allow the staff have adequate time to go to take careful safeguard measure, report to the police for forcing for the second time; automatic shutdown protection; prevent the generation of major accident, in addition, the utility model compact conformation, volume are little, little power consumption, stable, dependable performance.

Description of drawings

Fig. 1 is the utility model structure office cross-sectional schematic.

Fig. 2 is a plate face schematic diagram behind the utility model.

Fig. 3 analyses and observe enlarged diagram for the utility model winder along axis.

Fig. 4 analyses and observe enlarged diagram for the utility model temperature detect switch (TDS) along axis.

Fig. 5 is the utility model circuit theory schematic diagram.

The specific embodiment

Make the utility model with reference to accompanying drawing 1,2,3,4,5.This ball grinder bush observing and controlling secondary alarming protector; by housing 1; temperature probe 2; fuse 3; circuit board 4; power supply indicator 7 and alarm lamp 5; 5 '; power switch 6; auxiliary reclay 13 constitutes; housing 1 is a rectangular box; its front face is a skewback; on front face, establish power switch 6; warning volume control potentiometer 14; fuse 3; power supply indicator 7 and alarm lamp 5; 5 '; on the plate face of back, establish power supply and shut down control binding post 15; alarm 8 is established at upper face middle part at housing 1; establish temperature probe patchhole 9 and temperature detect switch (TDS) patchhole 10 at housing 1 upper face rear portion; temperature probe 2 and temperature detect switch (TDS) 11 are inserted in respectively in temperature probe patchhole 9 and the temperature detect switch (TDS) patchhole 10; connected lead is wrapped on the winder 12 in the housing 1; when inserting temperature probe 2 and temperature detect switch (TDS) 11 in housing 1, lead is rolled automatically.The alarm temperature of described alarm 8 divides two grades, be respectively＞50 ℃ and＞80 ℃, promptly when bearing bush temperature reaches 50 ℃, the for the first time single tone low frequency prevention of beginning is reported to the police, when bearing bush temperature＞80 ℃, then send the different pressure chimes of doom of two kinds of height of the similar ambulance sound, automatic control equipment is shut down simultaneously; Described winder 12 is made of wind spring 12a, reel 12b, fixed mount 12c and fixed axis 12f, lead 12g is wrapped on the reel 12b, the end of reel 12b is provided with the ring-type rotary contact 12d of lead 12g, contact with the fixed contact 12e on the fixed mount 12c, fixed mount 12c is fixed on the base plate in the housing 1; Described temperature detect switch (TDS) 11 is made of bimetal leaf inductor 11a and ceramic insulation tube 11b, bimetal leaf inductor 11a is a semi-annular shape, be contained in the front end in the ceramic insulation tube 11b, contact 11c is fixed on the inwall of ceramic insulation tube 11b, the outer end of a lead 11d is connected with positive source, and the outer end of another root lead 11e links to each other with auxiliary reclay 13; The operation principle such as the circuit of this ball grinder bush observing and controlling secondary alarming protector are shown in Figure 5, and this circuit is controlled four parts by power supply, temperature control, warning, shutdown and formed power switch 6 (K ₁) after the closure, external AC power supply is through transformer T step-down, V ₁Full-bridge rectification, filter capacitor IC ₁, the integrated voltage stabilizing of CW7809, obtain required 9V dc source, temperature probe 2 is the Rt in the circuit, is the thermistor of positive temperature coefficient, its resistance increases with temperature and rises potentiometer RW ₁Be used to preset the temperature range of normal operation, when temperature is lower than 50 ℃, potentiometer RW ₁Midpoint potential is higher than phase inverter F threshold potential, phase inverter F output low level, multiple tube V ₄, V ₅On cutting, relay J ₁Must not be electric, when temperature rose to 50 ℃ of control points, temperature probe 2 resistances increased, potentiometer RW ₁Midpoint potential drops to phase inverter F threshold potential, and phase inverter F exports high level, multiple tube V ₄, V ₅Conducting, prevention alarm lamp 5 (V ₃) bright, do 50 ℃ of indications of reporting to the police, relay J ₁Adhesive, the normally open contact closure is by IC ₂555 multivibrators of forming drive alarm B and send interrupted low frequency chimes of doom, IC ₂Frequency of oscillation is by R ₄, R ₅, C ₆Decision, if through the staff lower the temperature handle after, bearing bush temperature is lower than 50 ℃, then chimes of doom stops, if cooling in time or handle after fall temperature and come, then alarm 8 always low frequency report to the police, when temperature rises to 80 ℃ of the upper limits, temperature detect switch (TDS) 11 (K ₂) closure, make and force alarm lamp 5 ' (V ₇) luminous, do 80 ℃ of upper limit alarm indications, relay J ₂Coil gets electric adhesive, J _2-2Disconnect and cut off IC ₂Export to loudspeaker; J _2-1Closure, IC ₃Work, IC ₃Also be connected into multivibrator, its control voltage input end 5 pin and IC ₂Export 3 pin and link to each other, so IC ₃V _COValue is with U _OIAnd change, work as U _OI=1 o'clock, IC ₃Output pulse frequency is lower, and U _OI=0 o'clock, frequency of oscillation was higher, IC ₃Output is through capacitance C ₈Be added on the alarm B, obtain the different chimes of doom of height of similar ambulance sound, the big I of chimes of doom is passed through RW ₂Regulate; The automatic shutdown protection circuit is by J _2-3, KA, a, b, a ', b ' formation because the power difference of ball mill, form differs, its control circuit is not quite identical, its mode of connection can be done suitably to improve and adjust, and is known technology.

Claims (4)

1; a kind of ball grinder bush observing and controlling secondary alarming protector; by housing (1); temperature probe (2); fuse (3); circuit board (4); power supply indicator (7) and alarm lamp (5; 5 '); power switch (6); auxiliary reclay (13) constitutes; it is characterized in that housing (1) is rectangular box; its front face is a skewback; on front face, establish power switch (6); warning volume control potentiometer (14); fuse (3); power supply indicator (7) and alarm lamp (5; 5 '); on the plate face of back, establish power supply and shut down control binding post (15); alarm (8) is established at upper face middle part at housing (1); establish temperature probe patchhole (9) and temperature detect switch (TDS) patchhole (10) at housing (1) upper face rear portion; temperature probe (2) and temperature detect switch (TDS) (11) are inserted in respectively in temperature probe patchhole (9) and the temperature detect switch (TDS) patchhole (10), and connected lead is wrapped on the interior winder (12) of housing (1).

2, ball grinder bush observing and controlling secondary alarming protector according to claim 1 is characterized in that the alarm temperature of described alarm (8) divides two grades, is respectively＞50 ℃ and＞80 ℃.

3, ball grinder bush observing and controlling secondary alarming protector according to claim 1; it is characterized in that described winder (12) is made of wind spring (12a), reel (12b), fixed mount (12c) and fixed axis (12f); lead (12g) is wrapped on the reel (12b); the end of reel (12b) is provided with the ring-type rotary contact (12d) of lead (12g); contact with the fixed contact (12e) on the fixed mount (12c), fixed mount (12c) is fixed on the interior base plate of housing (1).

4, ball grinder bush observing and controlling secondary alarming protector according to claim 1; it is characterized in that described temperature detect switch (TDS) (11) is made of bimetal leaf inductor (11a) and ceramic insulation tube (11b); bimetal leaf inductor (11a) is a semi-annular shape; be contained in the front end in the ceramic insulation tube (11b); contact (11c) is fixed on the inwall of ceramic insulation tube (11b); the outer end of a lead (11d) is connected with positive source, and the outer end of another root lead (11e) links to each other with auxiliary reclay (13).

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