CN202041211U - Power supply device for motor of gyro north seeker - Google Patents
Power supply device for motor of gyro north seeker Download PDFInfo
- Publication number
- CN202041211U CN202041211U CN201120129953XU CN201120129953U CN202041211U CN 202041211 U CN202041211 U CN 202041211U CN 201120129953X U CN201120129953X U CN 201120129953XU CN 201120129953 U CN201120129953 U CN 201120129953U CN 202041211 U CN202041211 U CN 202041211U
- Authority
- CN
- China
- Prior art keywords
- power supply
- water conservancy
- conservancy diversion
- motor
- guide wires
- 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 - Lifetime
Links
Images
Landscapes
- Gyroscopes (AREA)
Abstract
The utility model relates to a power supply device for a motor of a gyro north seeker, which comprises an external power supply, a plurality of guide wires electrically connected with the external power supply, a power supply contactor connected with the guide wires in parallel and is characterized in that the power supply device for the motor further comprises relays correspondingly connected with the guide wires so as to protect the guide wires; the relays can lead the guide wires to be cut off from a power supply circuit when the required supply current is greater than or equal to the bearing values of the guide wires; the power supply contactor independently supplies power to the motor of the gyro north seeker; and when the required supply current is less than the bearing values of the guide wires, the guide wires are connected with the power supply contactor in parallel. For the power supply device for the motor, the guide wires have good safety and cannot be burnt down; and the gyro north seeker adopting the power supply device is highly stable in working.
Description
Technical field
The utility model relates to a kind of motor electric supply installation, particularly the motor electric supply installation on the gyroscope north searching instrument.
Background technology
Gyroscope north searching instrument, claim meridian gyro or gyrocompass again, be a freely-suspended gyropendulum, the metal hang spring of being made by a constant modulus alloy hangs the rotor case body that an inside is equipped with gyro motor usually, constitutes a free gyro that is subjected to gravity constraint and does not have other friction in suspension.Under the effect of earth rotation horizontal component, the gyro rotation motor axis of rotation has the ability of the local meridian direction of trend.Gyroscope north searching instrument and transit are combined, and gyroscope north searching instrument is put on the shelf in transit, can measure the direct north of certain point.Therefore, gyroscope north searching instrument is usually used in measuring on the ore deposit, purposes such as tunnel holing through, positioning and directing measurement.In the prior art,, need external power source be flowed to the gyro motor driving circuit of rotor case inside usually with the many flexible fluid-directing silks that specific alloy is made for to the gyro motor power supply.The electric current that the water conservancy diversion silk self can bear, the requirement when making it can not satisfy the gyro motor startup.But because gyrostatic principle of work does not allow to use the water conservancy diversion silk that can bear bigger working current again.For this reason, some systems adopt the power supply contact in parallel with the water conservancy diversion silk to add great start-up current.When gyro motor starts, need current ratio bigger, bear electric current bigger when starting jointly by water conservancy diversion silk and power supply contact, and make electric current most of by power supply contact, prevent to burn the water conservancy diversion silk; After gyro motor arrived rated speed, electric current was reduced in the scope that the water conservancy diversion silk can bear, and disconnects power supply contact this moment, thereby by water conservancy diversion silk power supply beginning surveying work separately.Take the weak point of the electric supply installation of this structure to be: when the contact resistance of power supply contact during greater than water conservancy diversion silk resistance, can burn the water conservancy diversion silk equally, the reliability of gyroscope north searching instrument is relatively poor.
Summary of the invention
Technical problem to be solved in the utility model is to overcome the deficiencies in the prior art, and a kind of improved gyroscope north searching instrument motor electric supply installation is provided.
For solving the problems of the technologies described above, the utility model adopts following technical scheme:
A kind of gyroscope north searching instrument motor electric supply installation; comprise external power source; many water conservancy diversion silks that are electrically connected with external power source; the power supply contact in parallel with the water conservancy diversion silk; it is characterized in that: described motor electric supply installation also comprises and the corresponding respectively relay that connects so that the water conservancy diversion silk is protected of each described water conservancy diversion silk; described relay be arranged so that supply current at needs is more than or equal to water conservancy diversion silk bearing value the time; described water conservancy diversion silk is broken from feed circuit; power to the gyroscope north searching instrument motor separately by described power supply contact; and it is during less than water conservancy diversion silk bearing value, that the water conservancy diversion silk is in parallel with described power supply contact at the supply current of needs.
Owing to adopt the enforcement of above technical scheme, the utility model compared with prior art has following advantage: take motor electric supply installation of the present utility model, the water conservancy diversion silk is by relay protection, when motor starting, required electric current is bigger, at this moment, relay control water conservancy diversion silk disconnects, and is powered to motor separately by power supply contact; After motor reached rated speed, required electric current was less, was lower than the bearing value of water conservancy diversion silk, the wire connection of relay control this moment water conservancy diversion is logical, make it in parallel, at this moment, can disconnect power supply contact with power supply contact, power to motor separately by the water conservancy diversion silk, thereby in the motor electric supply installation of the present utility model, the security of water conservancy diversion silk is good, can do not burnt, improved the job stability of gyroscope north searching instrument.
Description of drawings
Below in conjunction with accompanying drawing and specific embodiment, the utility model is described in more detail.
Fig. 1 is a structural representation of having taked the gyroscope north searching instrument of the utility model motor electric supply installation;
Fig. 2 is the circuit diagram according to motor electric supply installation of the present utility model;
Wherein: 1, housing; 2, gyropendulum; 20, rotor case body; 21, motor; 3, outer cover; 4, eyepiece system; 5, objective system; 6, water conservancy diversion silk; 7, power supply contact.
Embodiment
As Fig. 1, gyroscope north searching instrument generally includes housing 1, is arranged on housing 1 interior freely-suspended gyropendulum 2, outer cover 3 and accessory for example eyepiece system 4 and objective system 5.Gyropendulum 2 comprises rotor case body 20 and the motor 21 that is arranged in the rotor case body 20.Described gyroscope north searching instrument also comprises the electric supply installation that is used for to motor 21 power supplies.The utility model relates generally to the improvement to the electric supply installation of motor 21.
Referring to Fig. 1 and Fig. 2, gyroscope north searching instrument motor electric supply installation comprises many water conservancy diversion silks 6, the power supply contact 7 in parallel with water conservancy diversion silk 6 and is connected relay 8 on each water conservancy diversion silk 6.The main effect of relay 8 is to control water conservancy diversion silk 6 according to the size of required supply current to be switched on or switched off from feed circuit.Specifically, when motor 21 started, required electric current was bigger, and at this moment, relay 8 control water conservancy diversion silks 6 disconnect, and are powered to motor 21 separately by power supply contact 7; After motor 21 reached rated speed, required electric current was less, was lower than the bearing value of water conservancy diversion silk 6, and this moment, relay 8 control water conservancy diversion silks 6 were connected, and made it in parallel with power supply contact 7, at this moment, can disconnect power supply contact 7, were powered to motor 21 separately by water conservancy diversion silk 6.Perhaps, also can not disconnect power supply contact 7, power to motor 21 jointly by the two.But preferably carry out according to the former mode.
From the above, in the motor electric supply installation of the present utility model, the water conservancy diversion silk can not occur because of the excessive situation of being burnt of electric current, the security of water conservancy diversion silk is good, has guaranteed the job stability of gyroscope north searching instrument.
More than the utility model has been done detailed description; its purpose is to allow the personage that is familiar with this art can understand content of the present utility model and is implemented; can not limit protection domain of the present utility model with this; all equivalences of doing according to spirit of the present utility model change or modify, and all should be encompassed in the protection domain of the present utility model
Claims (1)
1. gyroscope north searching instrument motor electric supply installation; comprise external power source; many water conservancy diversion silks that are electrically connected with external power source; the power supply contact in parallel with the water conservancy diversion silk; it is characterized in that: described motor electric supply installation also comprises and the corresponding respectively relay that connects so that the water conservancy diversion silk is protected of each described water conservancy diversion silk; described relay be arranged so that supply current at needs is more than or equal to water conservancy diversion silk bearing value the time; described water conservancy diversion silk is broken from feed circuit; power to the gyroscope north searching instrument motor separately by described power supply contact; and it is during less than water conservancy diversion silk bearing value, that the water conservancy diversion silk is in parallel with described power supply contact at the supply current of needs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120129953XU CN202041211U (en) | 2011-04-28 | 2011-04-28 | Power supply device for motor of gyro north seeker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120129953XU CN202041211U (en) | 2011-04-28 | 2011-04-28 | Power supply device for motor of gyro north seeker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202041211U true CN202041211U (en) | 2011-11-16 |
Family
ID=44968649
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120129953XU Expired - Lifetime CN202041211U (en) | 2011-04-28 | 2011-04-28 | Power supply device for motor of gyro north seeker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202041211U (en) |
-
2011
- 2011-04-28 CN CN201120129953XU patent/CN202041211U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102261913B (en) | Gyro north-finder, and power supplying method for gyro north-finder motor | |
| CN202041211U (en) | Power supply device for motor of gyro north seeker | |
| CN102261914B (en) | Gyro north finder | |
| CN105523157B (en) | A kind of underwater robot, which is thrown, carries module | |
| CN103701265A (en) | Double-voltage-regulator power generator | |
| CN202041210U (en) | North finding instrument of gyro | |
| KR101610887B1 (en) | Charging apparatus for charging between cellular phones | |
| CN214177196U (en) | Automatic corotation mechanism of oil pump motor | |
| CN207518440U (en) | The mounting structure and motor of sensor | |
| CN107414264B (en) | A kind of convenient argon arc welding machine terminal box with storage function | |
| CN103701184B (en) | Gas turbine charging controls and protective device | |
| CN209149672U (en) | A kind of engine exhibition machine operation indicator | |
| CN206195505U (en) | Base -less motor installation mechanism | |
| CN208890422U (en) | A kind of Novel car charger | |
| CN204508580U (en) | Automatic hanging hook | |
| CN208045553U (en) | Waterproof battery packet and charger baby | |
| CN202889163U (en) | Hysteresis coupling | |
| CN203026739U (en) | Electric leakage protection power plug with improved circuit | |
| CN203439837U (en) | Wire breakage alarm structure of tensioner | |
| CN208352670U (en) | A kind of mobile phone charging wire with storage device | |
| CN203500051U (en) | Floating ball control structure of three-phase submersible electric pump | |
| CN201616724U (en) | Brush carrier assembly of motor | |
| CN206977117U (en) | A kind of portable power source of more charging wires | |
| CN203377746U (en) | Motor protective system and universal motor device | |
| CN204596092U (en) | Dregs of fat hoister stall autoalarm |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20111116 |
|
| CX01 | Expiry of patent term |