CN101716081B - Locking device for rotary arm of radiographic system - Google Patents
Locking device for rotary arm of radiographic system Download PDFInfo
- Publication number
- CN101716081B CN101716081B CN 200910110469 CN200910110469A CN101716081B CN 101716081 B CN101716081 B CN 101716081B CN 200910110469 CN200910110469 CN 200910110469 CN 200910110469 A CN200910110469 A CN 200910110469A CN 101716081 B CN101716081 B CN 101716081B
- Authority
- CN
- China
- Prior art keywords
- rotary arm
- radiographic system
- arm
- gear
- locking device
- 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
Links
Images
Abstract
The invention discloses a locking device for a rotary arm of a radiographic system, which comprises a rotary arm rotating shaft driving the rotary arm of the radiographic system to rotate, a first gear, a second gear meshed with the first gear and a permanent magnetic jaw brake internally provided with a spring, wherein the first gear internally provided with the spring is fixed on the rotary arm of the radiographic system, the rotating shaft thereof is fixedly connected to that of the second gear. In the locking device for the rotary arm of the radiographic system, the permanent magnetic jaw brake internally provided with the spring and a planetary gear structure are used to lock the rotary arm of the radiographic system. Compared with the traditional friction braking structure, the locking device has the advantages of greatly improving the braking torque and having a compact structure. The locking device for the rotary arm of the radiographic system of the invention greatly reduces the indexing angle for locking the rotary arm of the radiographic system, allows the rotary arm of the radiographic system to stay at any angular position and is extremely convenient to operate.
Description
Technical field
The present invention relates to the armarium technical field, be specifically related to a kind of locking device for rotary arm of radiographic system.
Background technology
Structurally there is various ways in the radiography system, common at home have two kinds on U-shaped arm configuration and a suspension structure, and in recent years, appearance along with the big policy of country, the reform of primary care is imperative, thus, on the basis of above-mentioned two kinds of structures, derive simpler and easy, more cost effective radiation filming system.Wherein a complete manually straight-arm radiation filming system of deriving out by the U-shaped arm, as shown in Figure 1, whole system mainly is made up of above 7 parts: lifting tube 4 is installed on the column 7 by steel wire rope or synchronous band, and can carry out the oscilaltion campaign on column 7; Rotating shaft 3 is fixed on the lifting tube 4, and it can carry out in the oscilaltion campaign with lifting tube 4 on the one hand like this, can be rotated around self axis on the other hand; Turning arm 2 installs and fixes together with rotating shaft 3, and it can realize two same motions with rotating shaft 3; Detector 1 is fixed on an end of turning arm 2; Bulb coaster 5 is installed in the other end of turning arm 2, can carry out rectilinear motion on turning arm in the certain distance; Bulb light concentrator assembly 6 is fixed on the bulb coaster 5, its light-emitting window and detector dash receiver keeping parallelism, and center unanimity.
At present at home and abroad in the product, the complete manually straight-arm radiation filming system straight-arm of great majority rotates calibration with complete manually U-shaped arm radiation filming system U-shaped arm and latch-up structure is realized by friction disc brake, the torque ratio that this mode locks is less, is difficult to satisfy straight-arm and U-shaped arm high pulling torque locking needs; In addition, also some product adopts the device of mechanical lock rationed marketing formula, promptly on turning arm 2, process a series of angled lock pin holes, the mechanical rim brake that utilization is installed on the column 7 cooperates the realization locking with the hole, this structure can satisfy the locking requirement of high pulling torque, but, promptly do not accomplish arbitrarily angled calibration because spatial constraints can not be accomplished very little minute of angle.
Summary of the invention
The technical problem to be solved in the present invention provides a kind of locking device for rotary arm of radiographic system, overcomes the defective that complete manually straight-arm radiation filming system of prior art and complete manually U-shaped arm rotary arm of radiographic system locking mechanism can not carry out arbitrarily angled calibration locking.
The present invention solves the problems of the technologies described above the technical scheme that is adopted to be:
A kind of locking device for rotary arm of radiographic system, comprise and drive the turning arm rotating shaft that rotary arm of radiographic system rotates, also comprise the magneto tooth embedding brake of built-in spring, the magneto tooth embedding brake of described built-in spring is fixed on the rotary arm of radiographic system, and its rotating shaft is fixedlyed connected with described turning arm rotating shaft.
Described locking device for rotary arm of radiographic system, wherein said turning arm is made as straight-arm.
Described locking device for rotary arm of radiographic system, wherein said turning arm is made as the U-shaped arm.
A kind of locking device for rotary arm of radiographic system, comprise and drive the turning arm rotating shaft that rotary arm of radiographic system rotates, also comprise fixedly sleeved in described turning arm rotating shaft first gear, with second gear of first gears engaged and the magneto tooth embedding brake of built-in spring, the magneto tooth embedding brake of described built-in spring is fixed on the rotary arm of radiographic system, and its rotating shaft is fixedlyed connected with the rotating shaft of second gear.
Described locking device for rotary arm of radiographic system, wherein said turning arm is made as straight-arm.
Described locking device for rotary arm of radiographic system, wherein said turning arm is made as the U-shaped arm.
Described locking device for rotary arm of radiographic system, wherein the gear ratio of first gear and second gear is made as 5
Beneficial effect of the present invention: locking device for rotary arm of radiographic system of the present invention adopts magneto tooth embedding brake and planetary gear construction that rotary arm of radiographic system is locked, compare existing friction-type brake structure, braking moment improves greatly, the while compact conformation, locking device for rotary arm of radiographic system of the present invention has reduced rotary arm of radiographic system locking minute of angle greatly, make rotary arm of radiographic system almost can rest on any one angle position, and operation is very easy.
Description of drawings
The present invention includes following accompanying drawing:
Fig. 1 is the complete manually straight-arm radiography system schematic of prior art;
Fig. 2 is a locking device for rotary arm of radiographic system sketch map of the present invention;
Fig. 3 is a magneto tooth embedding brake sketch map of the present invention;
Fig. 4 is a magneto tooth embedding brake inside spring sketch map of the present invention.
The specific embodiment
With embodiment the present invention is described in further detail with reference to the accompanying drawings below:
As Fig. 2, Fig. 3 and shown in Figure 4, locking device for rotary arm of radiographic system of the present invention comprises the turning arm rotating shaft 11 that drives the rotary arm of radiographic system rotation, also comprise fixedly sleeved in turning arm rotating shaft 11 first gear 8, with second gear 9 and the magneto tooth embedding brake 10 of first gear 8 engagement, magneto tooth embedding brake 10 is fixed on the rotary arm of radiographic system 2, and its rotating shaft 101 is fixedlyed connected with the rotating shaft 12 of second gear.Turning arm 2 is made as straight-arm or U-shaped arm.
Magneto tooth embedding brake 10 mainly is made up of permanent magnet 104 (end face has profile of tooth 107), mobile 103 (end face has profile of tooth 106), and profile of tooth 106 and profile of tooth 107 can be meshing with each other.Permanent magnet 104 and installing plate 105 link to each other by screw, and rotating shaft 101 links to each other with the rotating shaft 12 of second gear by key, and magneto tooth embedding brake 10 is fixed on the rotary arm of radiographic system 2 by mount pad 102.Its operation principle is: when magneto tooth embedding brake 10 was not switched on, mobile 103 was under the suction of permanent magnet 104, and the tension force that mobile's 103 profiles of tooth 106 overcome contained spring 108 moves right profile of tooth 107 engagements with permanent magnet 104, realizes locking; When pressing switch, after the permanent magnet energising, magnetic is cancelled out each other, and suction disappears, and to left movement, throw off by profile of tooth 106 and profile of tooth 107 under self contained spring 108 effect for the parts of tooth 106 of mobile 103.The locking moment of magneto tooth embedding brake 10 can reach 80NM, and the number of teeth is 180, so the minute of angle of magneto tooth embedding brake 10 is 2 °.
The present invention utilizes embedding brake of magneto tooth and the bonded mode of planetary gear to realize the lock function of rotary arm of radiographic system.When magneto tooth embedding brake was cut off the power supply, second gear was locked, thereby realized the locking that rotary arm of radiographic system rotates; When magneto tooth embedding brake is switched on (pinning switch), the tooth embedding is thrown off, and therefore just can rotate rotary arm of radiographic system like a cork, realizes the position of wanting.The present invention adopts planetary gear both can reduce minute of angle, also can increase torque lock simultaneously, and this also is the key that realizes little minute of angle and big torque lock.The gear ratio of supposing first gear (gear wheel) and second gear (pinion) is 5 (as gear wheel Z
1=100, pinion Z
2=20), the gear ratio that then can calculate pinion and turning arm (being equivalent to planet carrier) is i=1+5=6.Therefore minute of angle Θ=2 that can realize °/6=0.33 °, meet the demands; Therefore maximum braking torque M=6X80=480NM can bear very big external force, owing to be the profile of tooth engagement, therefore can guarantee not unsceptered simultaneously.
Those skilled in the art do not break away from essence of the present invention and spirit, can there be the various deformation scheme to realize the present invention, the above only is the preferable feasible embodiment of the present invention, be not so limit to interest field of the present invention, the equivalent structure that all utilizations description of the present invention and accompanying drawing content are done changes, and all is contained within the interest field of the present invention.
Claims (7)
1. locking device for rotary arm of radiographic system, comprise and drive the turning arm rotating shaft that rotary arm of radiographic system rotates, it is characterized in that: also comprise the magneto tooth embedding brake of built-in spring, the magneto tooth embedding brake of described built-in spring is fixed on the rotary arm of radiographic system, and its rotating shaft is fixedlyed connected with described turning arm rotating shaft.
2. locking device for rotary arm of radiographic system according to claim 1 is characterized in that: described turning arm is made as straight-arm.
3. locking device for rotary arm of radiographic system according to claim 1 is characterized in that: described turning arm is made as the U-shaped arm.
4. locking device for rotary arm of radiographic system, comprise and drive the turning arm rotating shaft that rotary arm of radiographic system rotates, it is characterized in that: also comprise fixedly sleeved in described turning arm rotating shaft first gear, with second gear of first gears engaged and the magneto tooth embedding brake of built-in spring, the magneto tooth embedding brake of described built-in spring is fixed on the rotary arm of radiographic system, and its rotating shaft is fixedlyed connected with the rotating shaft of second gear.
5. locking device for rotary arm of radiographic system according to claim 4 is characterized in that: described turning arm is made as straight-arm.
6. locking device for rotary arm of radiographic system according to claim 4 is characterized in that: described turning arm is made as the U-shaped arm.
7. according to claim 5 or 6 described locking device for rotary arm of radiographic system, it is characterized in that: the gear ratio of first gear and second gear is made as 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910110469 CN101716081B (en) | 2009-11-03 | 2009-11-03 | Locking device for rotary arm of radiographic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910110469 CN101716081B (en) | 2009-11-03 | 2009-11-03 | Locking device for rotary arm of radiographic system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101716081A CN101716081A (en) | 2010-06-02 |
| CN101716081B true CN101716081B (en) | 2011-11-09 |
Family
ID=42430780
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910110469 Expired - Fee Related CN101716081B (en) | 2009-11-03 | 2009-11-03 | Locking device for rotary arm of radiographic system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101716081B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4145613A (en) * | 1977-10-25 | 1979-03-20 | Cgr Medical Corporation | Motorized X-ray tube assembly |
| CN2623184Y (en) * | 2003-03-31 | 2004-07-07 | 华东船舶工业学院 | Stand for operating microscope |
| CN201333043Y (en) * | 2008-11-21 | 2009-10-28 | 内江西南医用设备有限公司 | Suspension type X-ray machine bulb tube bracket braking device |
-
2009
- 2009-11-03 CN CN 200910110469 patent/CN101716081B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4145613A (en) * | 1977-10-25 | 1979-03-20 | Cgr Medical Corporation | Motorized X-ray tube assembly |
| CN2623184Y (en) * | 2003-03-31 | 2004-07-07 | 华东船舶工业学院 | Stand for operating microscope |
| CN201333043Y (en) * | 2008-11-21 | 2009-10-28 | 内江西南医用设备有限公司 | Suspension type X-ray machine bulb tube bracket braking device |
Non-Patent Citations (1)
| Title |
|---|
| JP特开2004-73354A 2004.03.11 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101716081A (en) | 2010-06-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201551322U (en) | Rotary arm locking device of radiophotography system | |
| CN104309823B (en) | A kind of locking releasing mechanism being applicable to solar battery array | |
| AU2017218601B2 (en) | Gearbox | |
| CN201778522U (en) | The lifting type multi-storied garage driving mechanism | |
| CN106638438B (en) | A kind of snowplough | |
| CN101716081B (en) | Locking device for rotary arm of radiographic system | |
| CN211480263U (en) | 5G communication base station antenna supports auxiliary frame | |
| CN202746550U (en) | Electrically and manually driven dual-input speed reducer for worm-gear reducing motor | |
| CN205045682U (en) | Automatic drive arrangement on staircase or pavement | |
| CN202681559U (en) | Window curtain operation controller embedded with controller | |
| US9263201B2 (en) | Planetary limit switch | |
| CN205154982U (en) | Electronic parking brake power assembly drive mechanism | |
| CN202646671U (en) | Parking mechanism and vehicle | |
| CN104821260B (en) | Dual pawl planetary gear device for electro-control mechanism | |
| CN100504113C (en) | Backstop for large back moment | |
| CN220286343U (en) | Power transmission device | |
| CN202300142U (en) | Electric ceiling curtain | |
| CN105257741A (en) | Electronic parking brake power assembly transmission mechanism | |
| CN202743329U (en) | Steering wheel marker device with steering indication function | |
| CN202413424U (en) | Conversion device of bumping potential energy to kinetic energy | |
| CN202184740U (en) | Driving device and X-ray machine | |
| CN201763939U (en) | Planet wheel retainer of clutch transmission device for washing machine | |
| CN109519895A (en) | A kind of stage moving head fixture XY shaft drive | |
| CN202735849U (en) | Swing type rotation prism device | |
| CN211448254U (en) | Automatic door closing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111109 Termination date: 20141103 |
|
| EXPY | Termination of patent right or utility model |