CN101750048A - Theodolite braking device - Google Patents
Theodolite braking device Download PDFInfo
- Publication number
- CN101750048A CN101750048A CN200910178250A CN200910178250A CN101750048A CN 101750048 A CN101750048 A CN 101750048A CN 200910178250 A CN200910178250 A CN 200910178250A CN 200910178250 A CN200910178250 A CN 200910178250A CN 101750048 A CN101750048 A CN 101750048A
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- China
- Prior art keywords
- theodolite
- electromagnetic
- braking
- transit
- braking device
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Abstract
The invention relates to a theodolite braking device which comprises a theodolite base and a theodolite rotating shaft arranged on the theodolite base. An electromagnetic braking contact disc is fixedly arranged on the theodolite rotating shaft, an electromagnetic braking device is fixedly arranged on the theodolite base, the position of the electromagnetic braking contact disc is corresponding to that of the electromagnetic braking device, and a gap is arranged between the electromagnetic braking device and the electromagnetic braking contact disc. The provided theodolite braking device has the characteristics of large braking torque, high speed, good stability, simple structure, convenient installation, and accurate positioning; moreover, the theodolite braking device can conveniently realize the maintaining of the braking.
Description
Technical field
The present invention relates to a kind of clamping device, relate in particular to a kind of theodolite braking device.
Background technology
Present theodolite braking device all is made up of the control system of band servomotor, and there is following shortcoming in the clamping device of this structure:
1, braking moment is little, response speed is slow.Because rotating torque is subjected to the restriction of servomotor stalling current size, braking moment is limited in one's ability, and rotating torque is directly proportional with servo brake electric current, mechanism's volume (that is: big moment must will be joined big motor), is inversely proportional to brake ability, response speed.
2, poor stability.Servo-control system contains servomotor and claims operating motor again, in automatic control system, as executive component, becomes the electrical signal conversion of being received angular displacement or angular velocity on the motor reel to export.Servomotor can be divided into direct current and AC servomotor two big classes, its principal feature is: do not have rotation phenomenon when signal voltage is zero, rotating speed at the uniform velocity descends along with the increase of torque, the encoder feedback signal that servomotor carries is given driver, driver compares according to value of feedback and desired value, adjusts the angle of rotor rotation.When dynamically transferring static state to, servomotor easily produces over-control, thereby causes system oscillation, occurs just finding the target phenomenon accurately after the shake about pointer when pointing to a certain angle.Positioning time is longer, generally more than 200 milliseconds.
3, the scope of application is little.Because the existence of above shortcoming can not be satisfied the application on precision height, the high transit of speed.
Summary of the invention
In order to solve the above-mentioned technical matters that exists in the background technology, the invention provides that a kind of braking moment is big, speed is fast, good stability, simple in structure, easy for installation, can realize conveniently that braking keeps, pinpoint theodolite braking device.
Technical solution of the present invention is: the invention provides a kind of theodolite braking device, comprise the transit base, and being arranged on transit rotating shaft on the transit base, its special character is: be set with the electromagnetic braking contact disc in the described transit rotating shaft; Be set with on the described transit base and the corresponding electromagnetic brake device in electromagnetic braking contact disc position; Be provided with the gap between described electromagnetic brake device and the electromagnetic braking contact disc.
Above-mentioned transit rotating shaft also comprises the detent clutch disk that is fixed in the transit rotating shaft, and described detent clutch disk is fixedlyed connected with the electromagnetic braking contact disc.
Above-mentioned transit base also is provided with the electromagnetism holder, and described electromagnetic brake device is fixed on the electromagnetism holder.
Above-mentioned electromagnetism brake apparatus is electromagnetic brake sheet or electromagnet and the combining of brake block.
The working power of above-mentioned theodolite braking device is alternating current or direct current.
The advantage of invention is:
1, braking moment is big, speed is fast.The present invention adopts the electro-magnetic braking device braking.Its principle of work: the electromagnet of built-in direct drive, power-on, the electromagnetic attraction of generation makes moment that rotatablely moves quit work.The rotating torque response time is 80 milliseconds.So its braking moment is big, speed is fast.
2, good stability.The present invention all is equipped with electro-magnetic braking device at the axle head of track frame orientation and pitching, and after turntable goes to certain position, but the sensing of the electromagnetic brake pair warp and weft instrument in the adhesive clamping device locks.Braking ability is stable, realizes that really static state stares.It can guarantee the present invention in the orientation, the stability of pitch orientation.Can resist 8 grades of strong wind to disturb through the outdoor test proof.
3, it is long simple, reliable operation and life-span to be installed.The present invention only need be installed in the rotation axle head, installation and simple.Be not subjected to various condition restriction.Compact conformation, efficient height.
4, load of Shi Yonging and velocity range are wide.The present invention can be widely used on all kinds transit and the loading turntable owing to the brake system that is the pair warp and weft instrument is reequiped.
5, easy and simple to handle.The present invention disconnects and can finish its function pressing push button.
Description of drawings
Fig. 1 is a preferred construction synoptic diagram of the present invention.
Embodiment
Referring to Fig. 1, the invention provides a kind of theodolite braking device, comprise transit base 14, and be arranged on the transit rotating shaft 1 on the transit base 14, be set with electromagnetic braking contact disc 5 in the transit rotating shaft 1; Be set with on the transit base 14 and the corresponding electromagnetic brake device in electromagnetic braking contact disc 5 positions; Be provided with the gap between electromagnetic brake device and the electromagnetic braking contact disc 5.
This transit rotating shaft also comprises the detent clutch disk 9 that is fixed in the transit rotating shaft 1, and detent clutch disk 9 is fixedlyed connected with electromagnetic braking contact disc 5.Transit base 14 also is provided with electromagnetism holder 6, and electromagnetic brake device is fixed on the electromagnetism holder 6.
The electromagnetism brake apparatus is electromagnetic brake sheet or electromagnet 11 and the combining of brake block 10.The working power of this theodolite braking device is alternating current or direct current.
The present invention is when work, connect under the detent push button off-state, the rotating shaft 1 of driven by motor transit is done the forward and reverse campaign around axle, detent clutch disk 9 is tightened to be fixed in the transit rotating shaft 1 by holding screw 2 and flat key 8 and is become one, and drives that detent clutch disk 9 is corresponding does the forward and reverse campaign; Same detent clutch disk 9 is connected with set nut 4 by fastenings sunk screw 3 with electromagnetic braking contact disc 5 and is fastening, and drive electromagnetic braking contact disc 5 is corresponding does the forward and reverse campaign.
Electromagnetic braking contact disc 5 leaves certain interval with electromagnetic brake device, and this brake gear can be the direct combination of electromagnetic brake sheet or electromagnet 11 and brake block 10.In order to say something, in the listed embodiment that enumerates of the present invention, the electromagnetic brake device of application is exactly the direct combination of electromagnet 10 and brake block 11.Brake block 10 is fixed on the electromagnetism holder 6, and electromagnetism holder 6 links by fastenings hexagon socket cap head screw 12, plain cushion, spring washer 13 and transit base 14, so electromagnetism holder 6 keeps not rotating.
At listed this embodiment that enumerates of the present invention, be suitable condition with alternating current 220V, certainly according to the transit self characteristics, can also finish specific implementation process of the present invention with direct current or this higher alternating current.After starting detent cable 7, electromagnet 11 is under power on condition, produce high flux magnetic, can be rapidly and brake block combine closely, by magnetic action, in brake block 10 and the electromagnetic braking contact disc 5 tight adhesives that are arranged in the transit rotating shaft 1,5 direct brake clutch disk 9 and the transit rotating shafts 1 of electromagnetic braking contact disc, therefore, under power on condition, can be at short notice, make electromagnetism holder 6 and electromagnetic braking contact disc 5, detent clutch disk 9, rotating shaft 1 is fastenedly connected and is integral, thereby rotating shaft moment is stopped operating, therefore played the effect of rapid braking.
Claims (5)
1. a theodolite braking device comprises the transit base, and is arranged on the transit rotating shaft on the transit base, it is characterized in that: be set with the electromagnetic braking contact disc in the described transit rotating shaft; Be set with on the described transit base and the corresponding electromagnetic brake device in electromagnetic braking contact disc position; Be provided with the gap between described electromagnetic brake device and the electromagnetic braking contact disc.
2. theodolite braking device according to claim 1 is characterized in that: described transit rotating shaft also comprises the detent clutch disk that is fixed in the transit rotating shaft, and described detent clutch disk is fixedlyed connected with the electromagnetic braking contact disc.
3. theodolite braking device according to claim 1 is characterized in that: described transit base also is provided with the electromagnetism holder, and described electromagnetic brake device is fixed on the electromagnetism holder.
4. according to claim 1 or 2 or 3 described theodolite braking device, it is characterized in that: described electromagnetism brake apparatus is electromagnetic brake sheet or electromagnet and the combining of brake block.
5. theodolite braking device according to claim 4 is characterized in that: the working power of described theodolite braking device is alternating current or direct current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910178250A CN101750048A (en) | 2008-12-17 | 2009-09-23 | Theodolite braking device |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810188561.3 | 2008-12-17 | ||
| CN200910178250A CN101750048A (en) | 2008-12-17 | 2009-09-23 | Theodolite braking device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101750048A true CN101750048A (en) | 2010-06-23 |
Family
ID=42477374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910178250A Pending CN101750048A (en) | 2008-12-17 | 2009-09-23 | Theodolite braking device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101750048A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686316A (en) * | 2021-08-04 | 2021-11-23 | 苏州一光仪器有限公司 | Surveying instrument and arresting gear thereof |
-
2009
- 2009-09-23 CN CN200910178250A patent/CN101750048A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113686316A (en) * | 2021-08-04 | 2021-11-23 | 苏州一光仪器有限公司 | Surveying instrument and arresting gear thereof |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Open date: 20100623 |