CN2151305Y - Electronic arrestor of desk lathe - Google Patents
Electronic arrestor of desk lathe Download PDFInfo
- Publication number
- CN2151305Y CN2151305Y CN 92219556 CN92219556U CN2151305Y CN 2151305 Y CN2151305 Y CN 2151305Y CN 92219556 CN92219556 CN 92219556 CN 92219556 U CN92219556 U CN 92219556U CN 2151305 Y CN2151305 Y CN 2151305Y
- Authority
- CN
- China
- Prior art keywords
- braking
- lathe
- axle sleeve
- electromagnetic disc
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Braking Arrangements (AREA)
Abstract
The utility model relates to an electronic brake apparatus of a desk lathe, which is mainly composed of a brake electromagnetic chuck, an electromagnetic coil, a belt wheel, a shaft sleeve, an annular friction plate, a power shaft, a bearing, a lathe body, an electronic control circuit, etc., wherein, the brake electromagnetic chuck is arranged on the shaft sleeve which is fixed on the lathe body. The power shaft is fixed in the shaft sleeve through the bearing, the belt wheel is fixed to the end part of the power shaft, and the electronic control circuit is installed in a switch cabinet of the lathe. Compared with the prior art, the utility model has the advantages of small volume, simple structure, steady brake rapid and high safety, and is a substitute for the existing brake apparatus of desk lathe.
Description
The utility model relates to a kind of machinery braking device, especially a kind of deceleration of electrons device that is used for bench lathe.
At present, the bench lathe stopping brake that machining is used adopts reversing braking, dynamic braking and mechanical braking etc. more, and reversing braking general employing directly on small-sized lathe braked, and its deficiency is that impact force is big, cause the electrical machinery parts damages easily, and the waste electric energy.Several in addition brakings also exist braking effect poor except that power consumption is big, braking slowly, complex structure, break down easily, the life-span weak point, deficiencies such as inconvenient operation have reduced the trouble free service performance of small desk lathe.
It is good that the purpose of this utility model provides a kind of braking ability, the bench lathe deceleration of electrons device that volume is little, the life-span is long, power consumption is low.
The purpose of this utility model realizes in the following manner: at the belt pulley of bench lathe, diameter and can endwisely slip a braking electromagnetic disc identical with belt pulley is installed on the axle sleeve, this braking electromagnetic disc is under the effect in magnetic field and the belt pulley side, contact produces surface friction drag, make the lathe Brake stop, the braking electromagnetic disc, the break-make by deceleration of electrons switching circuit controlling magnetic field electric current realizes braking again.
Figure of description 1 is a brake device structure schematic representation of the present utility model;
Figure of description 2 is the electronic control circuit figure of braking device of the present utility model;
Figure of description 3 is a motor switch circuit diagram of the present utility model.
The utility model will be further described with reference to Figure of description.
Brake apparatus of the present utility model mainly is made up of braking electromagnetic disc [6], belt pulley [7] solenoid [5], axle sleeve [2], annular friction sheet [8], line shaft [1] bearing [9], bed body [3] and electronic control circuit etc. Belt pulley [7] is installed on the line shaft [1], line shaft [1] is to be fixed among the axle sleeve [2] by bearing [9], axle sleeve [2] then is fixed on the body [3], braking electromagnetic disc [6] is enclosed within on the axle sleeve [2], bar key [4] is installed preventing braking electromagnetic disc [6] radial rotating between the two, but and horizontal slip. Braking electromagnetic disc [6] middle part has cannelure, wherein lays solenoid [5], between braking electromagnetic disc [6] and the belt pulley [7] annular friction sheet [8] is housed.
Electronic control circuit mainly is made up of power circuit, switching circuit and delay circuit, and power circuit is by rectifier GS, power switch K, tutorial light HL
3And protective tube FU forms the meet sb. at the airport electrical source of power of bed of power supply, for the braking electromagnetic disc provides field current.
Switching circuit is by R
5, C
2, KP, KA
2, D
3, yB forms, wherein KP is a controllable silicon.YB is the electromagnetic coil [5] in the electromagnetic disc [6], KA
2Be the normally-closed contact switch on relay road, the break-make of this circuit control brake electromagnetic disc field current.
Delay circuit is by BG
1, R
1, R
2, R
3, R
4, KA
1, D
1, D
2Deng composition.Triode BG
1Emitter connect the control utmost point of controllable silicon KP.KA
1It is the normally opened contact switch of relay.Capacitor C
1The control delay time.
Figure of description 3 is switching circuit figure of motor, and wherein, kM is the main switch of power supply, and BA is the power switch on the lathe.KA is KA in the electronic control circuit
1KA
2The electromagnetic coil of relay is by two power supplies in three power supplys.
Embodiment:
The k that closes a switch, the bright electronic control circuit that shows of tutorial light is connected power supply by rectification output 24V direct current safety voltage, and delay circuit is by isolating diode D
2Current-limiting resistance R
3Reference diode D
1Obtain stable DC voltage, do not change because of voltage functuation to guarantee the delay circuit delay time.When lathe is worked, start lathe power switch SA, motor operation, relay coil KA obtains operating current, relay adhesive, normal battle, KA
1Closure, normally closed some KA
2Disconnect, circuit is by D
2R
3R
1To C
1Charging is got ready to time-delay.
When needs stop, lathe power switch SA outage, relay coil KA (motor still rotates by inertia) the normally closed some KA of relay that also cut off the power supply simultaneously
2Closure, the KA of often making war
1Disconnect capacitor C
1Discharge provides trigger current by BG to controllable silicon, makes the controllable silicon conducting, brakes the electromagnetic coil in the electromagnetic disc, obtains electric current and produces magnetic field, makes the braking electromagnetic disc close by friction plate generation surface friction drag to belt pulley, makes the belt pulley stall.Along with C in the delay circuit
1Discharge finish, controllable silicon loses trigger current, does not have electric current to flow through controllable silicon, electromagnetic coil YB outage magnetic field disappears, belt pulley surface friction drag also disappears, the lathe end of braking, belt pulley is free to rotate.
Deceleration of electrons device of the present utility model is compared with existing technology, and has braking steadily, rapidly, does not damage mechanical part, and saves the characteristics such as electric energy and volume are little, can improve operating efficiency and the service behaviour of lathe.
Claims (7)
1, bench lathe deceleration of electrons device, comprise braking electromagnetic disc, electromagnetic coil, belt pulley, axle sleeve, annular friction sheet, line shaft, bearing, bed body and electronic control circuit etc., it is characterized in that braking electromagnetic disc is installed on the axle sleeve, axle sleeve is fixed on the body, Bearing Installation is housed on the line shaft in axle sleeve, belt pulley is fixed on the end of line shaft, and electronic control circuit is made up of power circuit, switching circuit and delay circuit.
2, braking device according to claim 1 is characterized in that braking and is equipped with the bar key between electromagnetic disc and the axle sleeve, and both are for being slidingly matched.
3, braking device according to claim 1 is characterized in that braking electromagnetic disc and leans on a side of belt pulley to have circular groove, and electromagnetic coil is installed in wherein.
4, braking device according to claim 1 is characterized in that braking the annular friction sheet is housed between electromagnetic disc and the belt pulley.
5, braking device according to claim 5 is characterized in that power circuit is by rectifier GS, power switch K, tutorial light HL
3And protective tube FU forms.
6, braking device according to claim 5 is characterized in that switching circuit is by R
5, C
2, KP, KA
2, D
3, YB forms, wherein KP is a controllable silicon, YB is the electromagnetic coil in the braking electromagnetic disc, KA
2It is relay normally-closed contact switch.
7, braking device according to claim 5 is characterized in that delay circuit is by BG
1, R
1, R
2, R
3, R
4, KA
1, D
1, D
2Form triode BG
1Emitter meet the silicon controlled control utmost point, KA
1Be the normally opened contact switch of relay, capacitor C
1The control delay time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92219556 CN2151305Y (en) | 1992-08-15 | 1992-08-15 | Electronic arrestor of desk lathe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92219556 CN2151305Y (en) | 1992-08-15 | 1992-08-15 | Electronic arrestor of desk lathe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2151305Y true CN2151305Y (en) | 1993-12-29 |
Family
ID=33766776
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92219556 Expired - Fee Related CN2151305Y (en) | 1992-08-15 | 1992-08-15 | Electronic arrestor of desk lathe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2151305Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855794A (en) * | 2020-12-28 | 2021-05-28 | 四川建筑职业技术学院 | Method for preventing simultaneous feeding of boring shaft and ram of floor type boring and milling machine |
-
1992
- 1992-08-15 CN CN 92219556 patent/CN2151305Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112855794A (en) * | 2020-12-28 | 2021-05-28 | 四川建筑职业技术学院 | Method for preventing simultaneous feeding of boring shaft and ram of floor type boring and milling machine |
| CN112855794B (en) * | 2020-12-28 | 2022-05-31 | 四川建筑职业技术学院 | Method for preventing simultaneous feeding of boring shaft and ram of floor type boring and milling machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |