CN211131117U - A source rotary mechanism that gives up for oral cavity CT side position formation of image - Google Patents
A source rotary mechanism that gives up for oral cavity CT side position formation of image Download PDFInfo
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- CN211131117U CN211131117U CN201921320296.XU CN201921320296U CN211131117U CN 211131117 U CN211131117 U CN 211131117U CN 201921320296 U CN201921320296 U CN 201921320296U CN 211131117 U CN211131117 U CN 211131117U
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- main shaft
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- radiation source
- swinging boom
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Abstract
The utility model belongs to the technical field of medical treatment CBCT, concretely relates to a radiation source rotary mechanism for oral cavity CT side position formation of image, including X radiation source, radiation source mounting, swinging boom, main shaft, crank connecting plate, connecting rod, slider and slider actuating mechanism, the X radiation source is fixed on the radiation source mounting, the radiation source mounting passes through the main shaft and rotates the setting on the swinging boom, crank connecting plate one end and main shaft rigid coupling, the other end constitutes the ball pivot cooperation with the wherein one end of connecting rod, the other end and the slider of connecting rod are articulated, the slider sets up on the swinging boom along the direction linear sliding of perpendicular to main shaft axis, slider actuating mechanism installs and is used for driving slider reciprocating motion on the swinging boom. The utility model discloses utilize slider-crank mechanism to solve the rotatory problem of radiation source high accuracy of oral cavity CT side position imaging in-process, have transmission simple structure, characteristics such as transmission precision height.
Description
Technical Field
The utility model belongs to the technical field of medical treatment CBCT, concretely relates to a radiation source rotary mechanism for oral cavity CT side position formation of image.
Background
At present, CBCT in oral cavity mainly has three imaging functions of CT, panorama and lateral position according to the requirements of doctors and patients. In lateral imaging, one of the core components of the CBCT apparatus, i.e., the X-ray source, is required to rotate a certain angle. At present side position formation of image in-process radioactive source is rotatory mostly gear train or hold-in range integrated configuration, and the former requires gear machining and installation accuracy height, and the latter has the rough phenomenon of rotation accuracy.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a biography source rotary mechanism for oral cavity CT side position formation of image, under the prerequisite that satisfies the rotating accuracy, simplify the rotatory scheme of side position formation of image in-process biography source.
The utility model discloses the technical scheme who takes specifically as follows:
the utility model provides a radiation source rotary mechanism for oral cavity CT side position formation of image, includes X radiation source, radiation source mounting, swinging boom, main shaft, crank connecting plate, connecting rod, slider and slider actuating mechanism, the X radiation source is fixed on the radiation source mounting, the radiation source mounting passes through the main shaft and rotates the setting on the swinging boom, crank connecting plate one end and main shaft rigid coupling, the other end constitutes the ball pivot cooperation with one of them end of connecting rod, the other end and the slider of connecting rod are articulated, the slider slides along the direction straight line of perpendicular to main shaft axis and sets up on the swinging boom, slider actuating mechanism installs and is used for driving slider reciprocating motion on the swinging boom.
Preferably, the main shaft is a hollow shaft, the main shaft is fixedly connected with the radiation source fixing part, a through hole for the main shaft to pass through is formed in the rotating arm, a mounting flange fixedly connected with the rotating arm is arranged on the through hole, and the main shaft and the mounting flange form circumferential rotation and axial fixing matching.
Preferably, a self-lubricating copper sleeve is arranged between the inner ring surface of the mounting flange and the outer ring surface of the main shaft.
Preferably, one end of the crank connecting plate is fixedly connected with the upper end face of the main shaft, the other end of the crank connecting plate is provided with a first optical axis, and the axis of the first optical axis is parallel to the axis of the main shaft.
Preferably, a second optical axis is arranged on the sliding block, and the axis of the second optical axis is parallel to the axis of the main shaft.
Preferably, bearing mounting holes are formed in two ends of the connecting rod, a self-aligning bearing is mounted at one end of the connecting rod, a deep groove ball bearing is mounted at the other end of the connecting rod, an inner ring of the self-aligning bearing is fixedly connected with the first optical axis, and an inner ring of the deep groove ball bearing is fixedly connected with the second optical axis.
Preferably, the self-aligning bearing is a self-aligning ball bearing or a self-aligning roller bearing.
Preferably, slider actuating mechanism includes the nut piece as an organic whole with the slider to and rotate the lead screw that sets up on the swinging boom along the perpendicular to main shaft axis direction, the lead screw constitutes screw-thread fit with the nut piece, still be equipped with on the swinging boom and be used for driving lead screw pivoted motor.
Preferably, the motor is in transmission connection with the lead screw through a speed reducer and/or a coupling.
Preferably, the stroke of the reciprocating motion of the slide block is set as follows: the rotation angle of the slider when driving the X-ray source to rotate has a rotation range of +/-30 degrees relative to the initial rotation 0 position, wherein the initial rotation 0 position is the position when the emitting direction of the X-ray source is parallel to the length direction of the rotating arm.
The utility model discloses the technological effect who gains does: the utility model discloses utilize slider-crank mechanism to solve the rotatory problem of radiation source high accuracy of oral cavity CT side position imaging in-process, have transmission simple structure, characteristics such as transmission precision height, in addition, the utility model discloses a crank connecting plate and connecting rod are connected to the mode of ball pivot, even there is certain assembly error at the connecting rod both ends, do not influence crank link mechanism's normal operating yet, have reduced the equipment processing and have assembled the degree of difficulty.
Drawings
Fig. 1 is a perspective view of a radiation source rotating mechanism for oral CT lateral imaging provided in an embodiment of the present invention;
fig. 2 is a top view of a radiation source rotating mechanism for oral CT lateral imaging provided by an embodiment of the present invention.
Detailed Description
In order to make the objects and advantages of the present invention more apparent, the present invention will be described in detail with reference to the following embodiments. It is to be understood that the following text is only intended to describe one or several particular embodiments of the invention, and does not strictly limit the scope of the claims specifically claimed.
As shown in figure 1, a radiation source rotary mechanism for oral cavity CT side position formation of image, including X radiation source 1, radiation source mounting 2, swinging boom 3, main shaft 6, crank connecting plate 7, connecting rod 9, slider 11 and slider 11 actuating mechanism, X radiation source 1 is fixed on radiation source mounting 2, radiation source mounting 2 rotates through main shaft 6 and sets up on swinging boom 3, crank connecting plate 7 one end and main shaft 6 rigid coupling, the other end constitutes the ball pivot cooperation with one of them end of connecting rod 9, the other end and the slider 11 of connecting rod 9 are articulated, slider 11 slides along the direction straight line of perpendicular to main shaft 6 axis and sets up on swinging boom 3, slider 11 actuating mechanism installs and is used for driving slider 11 reciprocating motion on swinging boom 3. The utility model discloses utilize 11 mechanisms of slider-crank to solve the rotatory problem of radiation source high accuracy of oral cavity CT side position imaging in-process, have transmission simple structure, characteristics such as transmission precision height, in addition, the utility model discloses a crank connecting plate 7 and connecting rod 9 are connected to the mode of ball pivot, even there is certain assembly error at connecting rod 9 both ends, do not influence the normal operating of crank connecting rod 9 mechanisms yet, have reduced the equipment processing and have assembled the degree of difficulty.
Preferably, main shaft 6 is the hollow shaft, main shaft 6 and 2 rigid couplings of radioactive source mounting, be equipped with the through-hole that supplies main shaft 6 to pass on the swinging boom 3, be equipped with on the through-hole with the mounting flange 4 of 3 rigid couplings of swinging boom, main shaft 6 constitutes circumferential direction, axial fixity cooperation with mounting flange 4. The hollow shaft can reduce the weight of equipment to the greatest extent while increasing the shaft diameter, and the manufacturing cost is reduced. The main shaft 6 is installed by the installation flange 4, so that the parts can be conveniently detached and replaced in the equipment maintenance process.
Preferably, a self-lubricating copper sleeve 5 is arranged between the inner ring surface of the mounting flange 4 and the outer ring surface of the main shaft 6, rotating bodies such as lubricating oil and bearings are not needed, equipment maintenance is simple, and maintenance cost is low.
Preferably, one end of the crank connecting plate 7 is fixedly connected with the upper end face of the main shaft 6, the other end of the crank connecting plate is provided with a first optical axis, and the axis of the first optical axis is parallel to the axis of the main shaft 6. And a second optical axis is arranged on the sliding block 11, and the axis of the second optical axis is parallel to the axis of the main shaft 6. Bearing mounting holes are formed in two ends of the connecting rod 9, a self-aligning bearing 8 is mounted at one end of the connecting rod, a deep groove ball bearing 10 is mounted at the other end of the connecting rod, an inner ring of the self-aligning bearing 8 is fixedly connected with the first optical axis, and an inner ring of the deep groove ball bearing 10 is fixedly connected with the second optical axis. The self-aligning bearing 8 is a self-aligning ball bearing or a self-aligning roller bearing. According to the invention, the deep groove ball bearing 10 is arranged at one end of the connecting rod 9, and the self-aligning bearing 8 is arranged at the other end, so that the adverse effect of machining errors or assembly errors on assembly precision can be effectively overcome.
Preferably, the slider 11 driving mechanism includes a nut block integrated with the slider 11, and a lead screw 12 rotatably disposed on the rotating arm 3 along a direction perpendicular to the axis of the main shaft 6, the lead screw 12 and the nut block form a thread fit, and the rotating arm 3 is further provided with a motor 14 for driving the lead screw 12 to rotate. The motor 14 is in transmission connection with the screw 12 via a reducer and/or a coupling 13. As shown in fig. 2, the stroke of the reciprocating motion of the slider 11 is set to: the rotation angle of the slider 11 when driving the X-ray source 1 to rotate has a rotation range of ± 30 ° relative to the initial rotation 0 position, where the initial rotation 0 position is the position when the emission direction of the X-ray source 1 is parallel to the length direction of the rotating arm 3. The screw 12 nut mechanism has high transmission precision, and can accurately control the rotation angle of the X-ray source 1 within a preset range so as to meet the use requirement of equipment.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention. The structures, devices, and methods of operation of the present invention, not specifically described and illustrated, are generally practiced by those of ordinary skill in the art without specific recitation or limitation.
Claims (10)
1. A radiation source rotary mechanism for oral cavity CT lateral position imaging which characterized in that: including X source (1), radiation source mounting (2), swinging boom (3), main shaft (6), crank connecting plate (7), connecting rod (9), slider (11) and slider (11) actuating mechanism, X source (1) is fixed on radiation source mounting (2), radiation source mounting (2) rotate through main shaft (6) and set up on swinging boom (3), crank connecting plate (7) one end and main shaft (6) rigid coupling, the other end constitutes the ball pivot cooperation with the wherein one end of connecting rod (9), the other end and slider (11) of connecting rod (9) are articulated, slider (11) slide along the direction straight line of perpendicular to main shaft (6) axis and set up on swinging boom (3), slider (11) actuating mechanism installs and is used for driving slider (11) reciprocating motion on swinging boom (3).
2. The source rotation mechanism for oral CT lateral imaging of claim 1, wherein: main shaft (6) are the hollow shaft, main shaft (6) and radioactive source mounting (2) rigid coupling, be equipped with the through-hole that supplies main shaft (6) to pass on swinging boom (3), be equipped with mounting flange (4) with swinging boom (3) rigid coupling on the through-hole, main shaft (6) and mounting flange (4) constitute circumferential direction, axial fixity cooperation.
3. The source rotation mechanism for oral CT lateral imaging of claim 2, wherein: and a self-lubricating copper sleeve (5) is arranged between the inner ring surface of the mounting flange (4) and the outer ring surface of the main shaft (6).
4. The source rotation mechanism for oral CT lateral imaging of claim 1, wherein: one end of the crank connecting plate (7) is fixedly connected with the upper end face of the main shaft (6), the other end of the crank connecting plate is provided with a first optical axis, and the axis of the first optical axis is parallel to the axis of the main shaft (6).
5. The source rotation mechanism for oral CT lateral imaging of claim 4, wherein: and a second optical axis is arranged on the sliding block (11), and the axis of the second optical axis is parallel to the axis of the main shaft (6).
6. The source rotation mechanism for oral CT lateral imaging of claim 5, wherein: the two ends of the connecting rod (9) are provided with bearing mounting holes, one end of the connecting rod is provided with a self-aligning bearing (8), the other end of the connecting rod is provided with a deep groove ball bearing (10), the inner ring of the self-aligning bearing (8) is fixedly connected with the first optical axis, and the inner ring of the deep groove ball bearing (10) is fixedly connected with the second optical axis.
7. The source rotation mechanism for oral CT lateral imaging of claim 6, wherein: the self-aligning bearing (8) is a self-aligning ball bearing or a self-aligning roller bearing.
8. The source rotation mechanism for oral CT lateral imaging of claim 1, wherein: slider (11) actuating mechanism includes the nut piece as an organic whole with slider (11) to and rotate lead screw (12) of setting on swinging boom (3) along perpendicular to main shaft (6) axis direction, lead screw (12) and nut piece constitute screw-thread fit, still be equipped with on swinging boom (3) and be used for driving lead screw (12) pivoted motor (14).
9. The source rotation mechanism for oral CT lateral imaging of claim 8, wherein: the motor (14) is in transmission connection with the lead screw (12) through a speed reducer and/or a coupling (13).
10. The source rotation mechanism for oral CT lateral imaging of claim 1, wherein: the stroke of the reciprocating motion of the slide block (11) is set as follows: the rotation angle of the sliding block (11) when driving the X-ray source (1) to rotate has a rotation range of +/-30 degrees relative to the initial rotation 0 position, and the initial rotation 0 position is the position when the emergent direction of the X-ray source (1) is parallel to the length direction of the rotating arm (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921320296.XU CN211131117U (en) | 2019-08-14 | 2019-08-14 | A source rotary mechanism that gives up for oral cavity CT side position formation of image |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921320296.XU CN211131117U (en) | 2019-08-14 | 2019-08-14 | A source rotary mechanism that gives up for oral cavity CT side position formation of image |
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| CN211131117U true CN211131117U (en) | 2020-07-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201921320296.XU Active CN211131117U (en) | 2019-08-14 | 2019-08-14 | A source rotary mechanism that gives up for oral cavity CT side position formation of image |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483400A (en) * | 2020-11-23 | 2021-03-12 | 浙江伯飞节能科技有限公司 | Exhaust pressure adjusting device of double-screw gas power machine |
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2019
- 2019-08-14 CN CN201921320296.XU patent/CN211131117U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112483400A (en) * | 2020-11-23 | 2021-03-12 | 浙江伯飞节能科技有限公司 | Exhaust pressure adjusting device of double-screw gas power machine |
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