JPH0245714U - - Google Patents
Info
- Publication number
- JPH0245714U JPH0245714U JP12266988U JP12266988U JPH0245714U JP H0245714 U JPH0245714 U JP H0245714U JP 12266988 U JP12266988 U JP 12266988U JP 12266988 U JP12266988 U JP 12266988U JP H0245714 U JPH0245714 U JP H0245714U
- Authority
- JP
- Japan
- Prior art keywords
- gantry
- tilting
- pulley
- fixed
- feed screw
- 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.)
- Granted
Links
- 230000005540 biological transmission Effects 0.000 claims 2
- 238000004804 winding Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 3
Landscapes
- Analysing Materials By The Use Of Radiation (AREA)
- Apparatus For Radiation Diagnosis (AREA)
Description
第１図はＣＴ装置用ガントリの概略構成図、第
２図は傾動駆動部の詳細構成図、第３図はガント
リの傾動動作図である。
１……Ｘ線管装置、２……検出器、３……回転
板、４……フレーム、５……傾動機構部、６……
スタンド、７……仮想傾動中心、８……傾動リン
ク、９……リンク回転中心、１０……傾動駆動部
、１１……送りネジ、１２……送りネジ端部、１
３……シリンダ、１４……シリンダ下部支点、１
５……電動機、１６……Ｖプーリ、１７……Ｖベ
ルト、１８……Ｖプーリ、１９……Ｖプーリ、２
０……Ｖベルト、２１……Ｖプーリ、２２……自
在軸継手、２３……Ｖプーリ、２４……Ｖベルト
、２５……Ｖプーリ、２６……送りナツト、２７
……軸。
FIG. 1 is a schematic configuration diagram of a gantry for a CT apparatus, FIG. 2 is a detailed configuration diagram of a tilting drive section, and FIG. 3 is a diagram of a tilting operation of the gantry. DESCRIPTION OF SYMBOLS 1... X-ray tube device, 2... Detector, 3... Rotating plate, 4... Frame, 5... Tilt mechanism section, 6...
Stand, 7...Virtual tilting center, 8...Tilt link, 9...Link rotation center, 10...Tilt drive unit, 11...Feed screw, 12...Feed screw end, 1
3...Cylinder, 14...Cylinder lower fulcrum, 1
5...Electric motor, 16...V pulley, 17...V belt, 18...V pulley, 19...V pulley, 2
0...V belt, 21...V pulley, 22...universal joint, 23...V pulley, 24...V belt, 25...V pulley, 26...feed nut, 27
……shaft.
Claims (1)
りナツトと、前記電動機と前記自在軸継手とを係
合するプーリ、ベルトから成る第１の巻掛伝動系
と、前記自在軸継手と前記送りナツトとを係合す
るプーリ、ベルトから成る第２の巻掛伝動系と、
前記送りナツトと噛み合いかつガントリの傾動部
側の固定軸に先端部が支持された送りねじと、前
記送りねじの先端部に固定した球面滑り軸受と、
前記送りナツトを固定したプーリの回転支持部を
設けたシリンダ筒と、ガントリの固定部側に支持
されるシリンダ筒下部の軸とから成る傾動駆動部
を具備し、ガントリの傾動運動と同期する傾動機
構部の部材を前記送りねじで回転運動させること
によりガントリの仮想傾動中心を中心点として傾
動させることを特徴とするＣＴ装置用ガントリ傾
動装置。 a first winding transmission system consisting of an electric motor, a universal joint, a feed nut fixed to a pulley, a pulley and a belt that engage the electric motor and the universal joint; a second wrapped transmission system consisting of a pulley and a belt that engages the
a feed screw that engages with the feed nut and has a tip supported by a fixed shaft on the tilting portion side of the gantry; a spherical sliding bearing fixed to the tip of the feed screw;
The tilting drive unit includes a cylinder cylinder provided with a rotary support part for a pulley to which the feed nut is fixed, and a shaft at the bottom of the cylinder cylinder supported on the fixed part side of the gantry, and the tilting drive part is configured to synchronize with the tilting movement of the gantry. A gantry tilting device for a CT apparatus, characterized in that the gantry is tilted around a virtual tilting center of the gantry by rotationally moving a member of the mechanism section using the feed screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12266988U JPH05168Y2 (en) | 1988-09-21 | 1988-09-21 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12266988U JPH05168Y2 (en) | 1988-09-21 | 1988-09-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0245714U true JPH0245714U (en) | 1990-03-29 |
| JPH05168Y2 JPH05168Y2 (en) | 1993-01-06 |
Family
ID=31370814
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12266988U Expired - Lifetime JPH05168Y2 (en) | 1988-09-21 | 1988-09-21 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05168Y2 (en) |
-
1988
- 1988-09-21 JP JP12266988U patent/JPH05168Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH05168Y2 (en) | 1993-01-06 |