CN211270804U - SPECT main frame reversing and limiting device - Google Patents
SPECT main frame reversing and limiting device Download PDFInfo
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- CN211270804U CN211270804U CN201921363514.8U CN201921363514U CN211270804U CN 211270804 U CN211270804 U CN 211270804U CN 201921363514 U CN201921363514 U CN 201921363514U CN 211270804 U CN211270804 U CN 211270804U
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Abstract
The utility model discloses a SPECT main frame switching-over stop device, include: the main body mechanism is internally provided with an annular hole groove; the two groups of limiting assemblies are arranged, and are symmetrically arranged on two sides of the top of the annular hole groove; the limiting assembly comprises a limiting seat, a pressure spring, a first screw, a steel ball, a limiting shaft, a limiting block, a spring washer, a second screw and a self-tapping bolt; the inside of spacing seat is hollow structure, the front end top of spacing seat is articulated through spacing axle has the stopper, and simple structure avoids appearing the spacing phenomenon of becoming invalid of machinery, prevents through the installation of the spacing subassembly of the machinery of installation positive and negative directions that the main revolving axle from surpassing the limit when moving, arouses the damage of components and parts such as cable, installs spacing seat on the major structure through self-tapping bolt, is convenient for adjust the position of stopper through the cooperation of steel ball and pressure spring.
Description
Technical Field
The utility model relates to a SPECT main frame technical field specifically is SPECT main frame switching-over stop device.
Background
Single Photon Emission Computed Tomography (SPECT) and Positron Emission Tomography (PET) are two CT techniques of nuclear medicine, as the gamma rays emitted from the body of a patient are imaged, so the gamma rays are generally called as emission computed tomography, the SPECT main frame is a main body frame for bearing parts of all levels, the human body SPECT equipment reciprocates back and forth at 0-180 degrees and 0-180 degrees, the prior art only controls equipment to carry out position control through photoelectric sensing's technique under this kind of motion pattern, avoids appearing that equipment motion exceeds spacingly, and the switching-over limit structure of current SPECT main frame is not convenient for install, has to take place among the in-service use that sensing equipment does not work then equipment motion extreme position, leads to equipment to damage, for this reason, proposes SPECT main frame switching-over stop device.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a SPECT main frame switching-over stop device to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: SPECT main frame switching-over stop device includes:
the main body mechanism is internally provided with an annular hole groove;
the two groups of limiting assemblies are arranged, and are symmetrically arranged on two sides of the top of the annular hole groove;
the limiting assembly comprises a limiting seat, a pressure spring, a first screw, a steel ball, a limiting shaft, a limiting block, a spring washer, a second screw and a self-tapping bolt;
the inside of spacing seat is hollow structure, the front end top of spacing seat articulates through spacing axle has the stopper, the mutual symmetry in below of stopper is equipped with two sets of second screws, the inside top of spacing seat is equipped with spring washer, spring washer's bottom is equipped with the pressure spring, spring washer with install the steel ball between the pressure spring, the bottom of spacing seat with the below handing-over department threaded connection of pressure spring has first screw, the mutual symmetry in bottom both sides of spacing seat pass through self-tapping bolt with the top fixed connection of major structure.
As further preferable in the present technical solution: main tributary bearing assembly is installed to both sides bottom around on the main part mechanism, main tributary bearing assembly sets up two sets ofly altogether, main tributary bearing assembly includes first gyro wheel bearing frame, first fixing bolt and first band axle gyro wheel bearing, first gyro wheel bearing frame pass through fixing bolt fixed connection in on the annular hole groove, first band axle gyro wheel bearing pass through first fixing bolt fixed connection in on the first gyro wheel bearing frame.
As further preferable in the present technical solution: lower roller bearing assembly is installed to main body mechanism's front surface bottom both sides, lower roller bearing assembly is two sets of, lower roller bearing assembly includes spacing cover, self-aligning roller bearing and main tributary bearing, self-aligning roller bearing rotate connect in the spacing cover, spacing cover pass through fixing bolt fixed connection in on the annular hole groove, the main tributary bearing pass through fixing bolt fixed connection in the front surface of spacing cover.
As further preferable in the present technical solution: the front side and the rear side of the main body mechanism are provided with four groups of upper roller bearing assemblies, each upper roller bearing assembly comprises an upper roller bearing frame, a second bolt and a second belt shaft roller bearing, the upper roller bearing frames are fixedly connected onto the annular hole grooves through fixing bolts, and the second belt shaft roller bearings are fixedly connected onto the upper roller bearing frames through the second bolts.
As further preferable in the present technical solution: the upper roller bearing assembly is located above the main bearing assembly and the lower roller bearing assembly.
As further preferable in the present technical solution: the main body mechanism and the cross section of the limiting block are both L-shaped structures.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses, simple structure avoids appearing the phenomenon of the spacing inefficacy of machinery, and the installation through the spacing subassembly of the machinery of installation positive and negative directions prevents that main revolving axle from surpassing the limit when moving, arouses the damage of components and parts such as cable, installs spacing seat on main structure through self tapping bolt, is convenient for adjust the position of stopper through the cooperation of steel ball and pressure spring.
Drawings
Fig. 1 is a schematic perspective view of the present invention;
fig. 2 is a schematic perspective view of the present invention;
fig. 3 is a schematic structural view of a perspective view of the limiting assembly of the present invention;
fig. 4 is a schematic structural view of a perspective view of the limiting assembly of the present invention;
fig. 5 is a schematic cross-sectional view of the limiting assembly of the present invention;
FIG. 6 is a schematic view of the main bearing assembly of the present invention;
fig. 7 is a schematic structural view of the lower roller bearing assembly of the present invention;
fig. 8 is a schematic structural diagram of the upper roller bearing assembly of the present invention.
In the figure: 10. a main body mechanism; 11. a ring-shaped hole slot; 20. a primary bearing assembly; 21. a first roller bearing bracket; 22. a first fixing bolt; 23. a first roller bearing with a shaft; 30. a lower roller bearing assembly; 31. a limiting cover; 32. a self-aligning roller bearing; 33. a main bearing; 40. an upper roller bearing assembly; 41. an upper roller bearing frame; 42. a second bolt; 43. a second roller bearing with a shaft; 50. a limiting component; 51. a limiting seat; 52. a pressure spring; 53. a first screw; 54. steel balls; 55. a limiting shaft; 56. a limiting block; 57. a spring washer; 58. a second screw; 59. a self-tapping bolt.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example (b):
referring to fig. 1-8, the present invention provides a technical solution: a SPECT main frame commutation stop, comprising:
the main body mechanism 10 is provided with an annular hole groove 11 inside;
the limiting assemblies 50 are arranged in two groups, and the two groups of limiting assemblies 50 are symmetrically arranged on two sides of the top of the annular hole groove 11;
the limiting assembly 50 comprises a limiting seat 51, a pressure spring 52, a first screw 53, a steel ball 54, a limiting shaft 55, a limiting block 56, a spring washer 57, a second screw 58 and a self-tapping bolt 59;
the inside of spacing seat 51 is hollow structure, the front end top of spacing seat 51 articulates through spacing axle 55 has stopper 56, the below mutual symmetry of stopper 56 is equipped with two sets of second screws 58, the inside top of spacing seat 51 is equipped with spring washer 57, spring washer 57's bottom is equipped with pressure spring 52, spring washer 57 with install steel ball 54 between the pressure spring 52, the bottom of spacing seat 51 with the below handing-over department threaded connection of pressure spring 52 has first screw 53, the bottom bilateral symmetry of spacing seat 51 pass through self-tapping bolt 59 with the top fixed connection of major mechanism 10.
In this embodiment, specifically: the main bearing assemblies 20 are mounted at the bottoms of the front side and the rear side of the main body mechanism 10, the main bearing assemblies 20 are provided with two groups, each main bearing assembly 20 comprises a first roller bearing frame 21, a first fixing bolt 22 and a first belt shaft roller bearing 23, the first roller bearing frame 21 is fixedly connected to the annular hole 11 through a fixing bolt, the first belt shaft roller bearing 23 is fixedly connected to the first roller bearing frame 21 through the first fixing bolt 22, and the first belt shaft roller bearing 23 is fixedly connected to the first roller bearing frame 21 through the first fixing bolt 22; through the arrangement, the gear can be positioned for the first time and positioned for the fourth time.
In this embodiment, specifically: lower roller bearing assembly 30 is installed to main body mechanism 10's front surface bottom both sides, lower roller bearing assembly 30 is two sets of, lower roller bearing assembly 30 includes spacing cover 31, self-aligning roller bearing 32 and main tributary bearing 33, self-aligning roller bearing 32 rotate connect in the spacing cover 31, spacing cover 31 through fixing bolt fixed connection in on the annular hole groove 11, main tributary bearing 33 through fixing bolt fixed connection in the front surface of spacing cover 31, through above setting, can carry out second location work and fifth location work to the gear.
In this embodiment, specifically: the gyro wheel bearing assembly 40 is installed to main body mechanism 10's front and back both sides, it sets up four groups altogether to go up gyro wheel bearing assembly 40, it includes gyro wheel bearing frame 41, second bolt 42 and second band axle gyro wheel bearing 43 to go up gyro wheel bearing frame 40, go up gyro wheel bearing frame 41 through fixing bolt fixed connection in on the annular hole groove 11, second band axle gyro wheel bearing 43 passes through second bolt 42 fixed connection in go up on gyro wheel bearing frame 41, through above setting, can carry out third time location work and sixth time location work to the gear.
In this embodiment, specifically: the upper roller bearing assembly 40 is located above the main bearing assembly 20 and the lower roller bearing assembly 30, and by the above arrangement, three-point positioning of the gears installed in the annular hole 11 can be performed.
In this embodiment, specifically: the main body mechanism 10 and the limiting block 56 are both of L-shaped structures.
When the main rotating mechanism is used, the main rotating mode is that the main rotating mechanism rotates 0-180 degrees along a needle and rotates 0-180 degrees anticlockwise, the limit of the main rotating mechanism is prevented from exceeding the limit during operation by installing the positive and negative mechanical limit assembly 50, the damage of components such as cables is prevented, the limit seat 51 is installed on the main mechanism 10 through the self-tapping bolt 59, and the position of the limit block 56 is convenient to adjust through the matching of the steel ball 54 and the pressure spring 52;
the main bearing assembly 20 primarily positions the gear, secondarily positions the gear through the lower roller bearing assembly 30 positioned on the front surface of the main mechanism 10, thirdly positions the gear through the upper roller bearing assembly 40 positioned on the front surface of the main mechanism 10, secondarily mounts the gear through the main bearing assembly 20 positioned on the rear surface of the main mechanism 10 after three-point positioning is completed, mounts the gear through the lower roller bearing assembly 30 positioned on the rear surface of the main mechanism 10, and finally mounts the gear through the upper roller bearing assembly 40 positioned on the rear surface of the main mechanism 10, and by using the principle that three points determine a plane, the mounting accuracy of the main slewing gear can be ensured only by confirming three mounting contact points in front and rear, and simultaneously supports the gear through the main bearing assembly 20, so that the gearwheel can effectively move, the mounting difficulty is reduced compared with the traditional mounting mode, and the requirement structure for mounting equipment is simple, the installation steps are simple, the gear is convenient to install, and the contact angle between the gear and the main body mechanism 10 can be conveniently adjusted through the lower roller bearing assembly 30.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
- SPECT main frame switching-over stop device, characterized by, include:the device comprises a main body mechanism (10), wherein a ring-shaped hole groove (11) is formed in the main body mechanism (10);the limiting assemblies (50) are arranged in two groups, and the two groups of limiting assemblies (50) are symmetrically arranged on two sides of the top of the annular hole groove (11);the limiting assembly (50) comprises a limiting seat (51), a pressure spring (52), a first screw (53), a steel ball (54), a limiting shaft (55), a limiting block (56), a spring washer (57), a second screw (58) and a self-tapping bolt (59);the inside of spacing seat (51) is hollow structure, the front end top of spacing seat (51) articulates through spacing axle (55) has stopper (56), the below mutual symmetry of stopper (56) is equipped with two sets of second screw (58), the inside top of spacing seat (51) is equipped with spring washer (57), the bottom of spring washer (57) is equipped with pressure spring (52), spring washer (57) with install steel ball (54) between pressure spring (52), the bottom of spacing seat (51) with the below handing-over department threaded connection of pressure spring (52) has first screw (53), the bottom bilateral symmetry of spacing seat (51) pass through self-tapping bolt (59) with the top fixed connection of main part mechanism (10).
- 2. The SPECT main frame commutation stop of claim 1, wherein: main tributary bearing assembly (20) are installed to both sides bottom around on main part mechanism (10), main tributary bearing assembly (20) set up two sets ofly altogether, main tributary bearing assembly (20) include first gyro wheel bearing frame (21), first fixing bolt (22) and first band axle gyro wheel bearing (23), first gyro wheel bearing frame (21) pass through fixing bolt fixed connection in on annular hole groove (11), first band axle gyro wheel bearing (23) pass through first fixing bolt (22) fixed connection in on first gyro wheel bearing frame (21).
- 3. The SPECT main frame commutation stop of claim 2, wherein: lower roller bearing assembly (30) are installed to the front surface bottom both sides of main part mechanism (10), lower roller bearing assembly (30) are two sets of, lower roller bearing assembly (30) are including spacing cover (31), self-aligning roller bearing (32) and main tributary bearing (33), self-aligning roller bearing (32) rotate connect in spacing cover (31), spacing cover (31) through fixing bolt fixed connection in on annular hole groove (11), main tributary bearing (33) through fixing bolt fixed connection in the front surface of spacing cover (31).
- 4. The SPECT main frame commutation stop of claim 3, wherein: roller bearing subassembly (40) are installed to both sides around main body mechanism (10), it sets up four groups altogether to go up roller bearing subassembly (40), it includes roller bearing frame (41), second bolt (42) and second band axle roller bearing (43) to go up roller bearing subassembly (40), it passes through fixing bolt fixed connection in to go up roller bearing frame (41) on annular hole groove (11), second band axle roller bearing (43) pass through second bolt (42) fixed connection in go up on roller bearing frame (41).
- 5. The SPECT main frame commutation stop of claim 4, wherein: the upper roller bearing assembly (40) is located above the main bearing assembly (20) and the lower roller bearing assembly (30).
- 6. The SPECT main frame commutation stop of claim 1, wherein: the sections of the main body mechanism (10) and the limiting block (56) are both L-shaped structures.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921363514.8U CN211270804U (en) | 2019-08-21 | 2019-08-21 | SPECT main frame reversing and limiting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921363514.8U CN211270804U (en) | 2019-08-21 | 2019-08-21 | SPECT main frame reversing and limiting device |
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| Publication Number | Publication Date |
|---|---|
| CN211270804U true CN211270804U (en) | 2020-08-18 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921363514.8U Active CN211270804U (en) | 2019-08-21 | 2019-08-21 | SPECT main frame reversing and limiting device |
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| CN (1) | CN211270804U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112914595A (en) * | 2021-04-10 | 2021-06-08 | 上海健康医学院 | SPECT probe position limiting protection device |
-
2019
- 2019-08-21 CN CN201921363514.8U patent/CN211270804U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112914595A (en) * | 2021-04-10 | 2021-06-08 | 上海健康医学院 | SPECT probe position limiting protection device |
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