CN117831829A - Radial collimator revolving stage suitable for 14T strong magnetic field operational environment - Google Patents

Abstract

The invention discloses a radial collimator turntable suitable for a 14T strong magnetic field working environment, and particularly relates to the field of radial collimators, which comprises a box body and a superconducting magnet, wherein the superconducting magnet is positioned above the center of the box body; and a synchronous belt mechanism is arranged between the driving box and the transmission assembly, a driving assembly is arranged in the driving box, and when the driving assembly drives the synchronous belt mechanism to rotate, the synchronous belt mechanism drives the rotary shaft to rotate through the transmission assembly. According to the invention, the driving box is arranged far away from the rotating shaft, so that the distance between the driving box and the rotating shaft is increased, and the direct mutual interference between the driving box and the rotating shaft is effectively avoided.

Description

Radial collimator revolving stage suitable for 14T strong magnetic field operational environment

Technical Field

The invention relates to the technical field of radial collimators, in particular to a radial collimator turntable.

Background

The neutron scattering technology is an important means for researching the microstructure and dynamics of substances, the construction quality of a neutron source and a neutron spectrometer directly influences the development level and popularity of the neutron scattering technology, in the neutron spectrometer such as a powder diffraction spectrometer, a stress spectrometer and a cold neutron chopper spectrometer, a large-area detector annularly distributed around a sample can cover a larger microscopic scale research range, the utilization rate of neutrons is improved, stray neutrons from the surrounding environment of the sample are easily introduced, a radial collimator is introduced for solving the problems, the radial collimator is arranged between the sample and the detector and is radially distributed around the sample position for absorbing the stray neutrons scattered by a non-sample, and the radial collimator needs to reciprocate in the experimental measurement process in order to avoid shadows left by the radial collimator.

At present, the reciprocating rotary motion of the radial collimator is generally realized by adding a scotch yoke to a motor positioned right below the radial collimator, the scotch yoke converts the rotary motion from the motor into left-right swinging, the design is simple and efficient, but because the electromagnet in the conventional motor exists, the radial collimator is generally only suitable for a zero-magnetic-field environment, a neutron scattering spectrometer needs to apply a magnetic-field environment in many cases, the magnetic-field environment is provided by a superconducting magnet positioned at the inner side of the radial collimator, the superconducting magnet and the motor are mutually influenced, on one hand, the magnetic field generated by the superconducting magnet can influence the distribution of the magnetic field in the motor to interfere the normal operation of the motor, on the other hand, the electromagnet in the motor can exert a force on the superconducting magnet, and when the force is larger than a certain value, the magnet can alarm and stop the normal operation, so the design of the radial collimator motion device which can be suitable for the environment of a strong magnetic field sample is an unavoidable important problem in the construction process of a plurality of neutron spectrometers.

Disclosure of Invention

The invention provides a radial collimator turntable, which aims to solve the problems that: the existing superconducting magnet and the motor are mutually influenced.

In order to achieve the above purpose, the present invention provides the following technical solutions: the radial collimator turntable comprises a box body and a superconducting magnet, wherein the superconducting magnet is positioned above the center of the box body, a rotary shaft is rotatably arranged in the box body, an adapter plate is arranged at the top of the rotary shaft, a fine collimator is arranged on the adapter plate, a driving box is arranged at the outer side of one end of the box body and far away from the superconducting magnet, the driving box is fixedly connected with the box body through a bracket, and a transmission assembly is arranged at the periphery of the rotary shaft; and a synchronous belt mechanism is arranged between the driving box and the transmission assembly, a driving assembly is arranged in the driving box, and when the driving assembly drives the synchronous belt mechanism to rotate, the synchronous belt mechanism drives the rotary shaft to rotate through the transmission assembly.

In a preferred embodiment, the driven assembly comprises a vacuum motor, the output end of the vacuum motor is connected with a speed reducer through a connecting seat, a bearing seat is arranged at one end, close to the speed reducer, of the driving box, an output shaft is arranged at the output end of the speed reducer, one end of the output shaft is fixedly connected with a driving wheel, and the driving wheel is rotationally connected with the bearing seat.

In a preferred embodiment, the transmission assembly comprises a worm and a worm wheel, the worm is meshed with the worm wheel for transmission, and the worm wheel is fixedly sleeved on the periphery of the rotary shaft.

In a preferred embodiment, the synchronous pulley belt mechanism comprises a synchronous pulley and a transmission belt, wherein the synchronous pulley is positioned on the outer side of the box body, the driving wheel is connected with the synchronous pulley through the transmission belt, and one end of the worm is fixedly connected with the synchronous pulley.

In a preferred embodiment, the bottom of the box is fixedly provided with a base, the rotary shaft is rotationally connected with the base, the top of the rotary shaft is externally and rotationally connected with a rotary bearing, the rotary bearing is fixedly arranged above the box, and a limit stop and a limit switch are arranged between the box and the adapter plate.

In a preferred embodiment, the transmission assembly is provided with an adjusting mechanism, the adjusting mechanism is an eccentric wheel, the eccentric wheel is rotationally connected with the box body, two groups of eccentric wheels are arranged at two ends of a corresponding worm, a worm bearing is arranged in the eccentric wheel, the end part of the worm is arranged in the worm bearing, the worm and the eccentric wheel are eccentrically arranged, a fixing structure is arranged between the eccentric wheel and the box body and comprises a fixing groove and a screw hole, the screw hole is formed in the box body, the fixing groove is formed in the driving wheel, and the fixing groove is correspondingly arranged with the screw hole.

In a preferred embodiment, the regulating mechanism is a regulating block, two groups of regulating blocks are arranged at two ends of the regulating block corresponding to the worm, one end of the worm, which is close to the synchronous pulley belt mechanism, rotates to penetrate through the corresponding regulating block, is fixedly connected with the synchronous pulley of the synchronous pulley belt mechanism, one end of the worm, which is far away from the synchronous pulley belt mechanism, is rotationally connected with the corresponding regulating block, a regulating port is formed in the position, corresponding to the regulating block, of the box, the regulating block transversely slides along the corresponding regulating port, a linear driving mechanism is fixedly arranged on one side, which is far away from the synchronous pulley belt mechanism, of the box, and the output end of the linear driving mechanism is fixedly connected with the regulating block.

In a preferred embodiment, the transmission assembly is provided with a detection assembly, and the detection assembly is used for detecting the clearance distance between the worm and the turbine when the adjustment mechanism adjusts the distance between the worm and the turbine.

In a preferred embodiment, the detection assembly comprises a first detection mechanism, the first detection mechanism comprises a fluid spray head and a fluid collection cover, the fluid spray head and the fluid collection cover are respectively arranged above and below the worm, and a flow detection pipeline is fixedly connected to the bottom of the fluid collection cover.

In a preferred embodiment, the detection assembly comprises a second detection mechanism and a third detection mechanism, the second detection mechanism is located on one side of the worm, which is far away from the worm, the third detection mechanism is located on one side of the worm, the second detection mechanism comprises a support frame, one side of the support frame, which is close to the worm, is rotationally connected with a detection roller, one side of the support frame, which is far away from the detection roller, is fixedly provided with a detection head, one end, which is far away from the support frame, of the first detection head is provided with a detection sensor, the third detection mechanism comprises a detection wheel, the detection wheel is in meshed connection with the worm, the top of the detection wheel is rotationally connected with a second detection head, and one end, which is far away from the detection wheel, of the second detection head is provided with a second detection sensor.

The invention has the beneficial effects that:

1. according to the invention, the driving box is arranged far away from the rotating shaft, so that the distance between the driving box and the rotating shaft is increased, and the direct mutual interference between the driving box and the rotating shaft is effectively avoided.

2. The invention reduces the magnetic force of the magnet as much as possible by adopting the low magnetic permeability material, and ensures the normal operation of the vacuum motor by adopting the permalloy with high magnetic permeability material to shield the influence of the magnetic field on the vacuum motor.

3. The invention uses the synchronous wheel belt mechanism and the transmission component as power transmission, so that the rotating speed is reduced to a great extent, and the torque is increased, thereby ensuring the slow and stable movement of the movement system.

4. The invention ensures the rationality and feasibility of the design by carrying out calculation simulation on the carrying capacity of the vacuum motor, the distribution of the magnetic field, the magnetic force between the superconducting magnet and the vacuum motor, and the like.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic top view of the overall structure of the present invention.

Fig. 3 is a schematic view of the structure of the driving box of the present invention.

Fig. 4 is a schematic cross-sectional view of the case of the present invention.

Fig. 5 is a schematic top view of the transmission assembly of the present invention.

Fig. 6 is a schematic view of the eccentric structure of the present invention.

Fig. 7 is a schematic top view of the adjusting block structure of the present invention.

Fig. 8 is a schematic side view of a first detection mechanism of the present invention.

FIG. 9 is a schematic top view of the structure of the detecting unit of the present invention.

Fig. 10 is a schematic top view of a second detection mechanism of the present invention.

Fig. 11 is a schematic top view of a third detection mechanism of the present invention.

The reference numerals are: 1. a case; 1001. a base; 1002. a slewing bearing; 13. a limit stop; 14. a limit switch; 2. a superconducting magnet; 3. a rotating shaft; 4. an adapter plate; 5. a drive box; 51. a vacuum motor; 52. a connecting seat; 53. a speed reducer; 54. a bearing seat; 55. an output shaft; 56. a driving wheel; 6. an eccentric wheel; 61. a worm; 62. a turbine; 63. a worm bearing; 64. a fixing groove; 65. a screw hole; 7. a timing belt mechanism; 8. an adjusting block; 81. an adjustment port; 9. a linear driving mechanism; 10. a first detection mechanism; 101. a fluid ejection head; 102. a fluid collection cap; 103. a flow detection conduit; 11. a second detection mechanism; 111. a support frame; 112. a detection roller; 113. a first detection head; 114. a first detection sensor; 12. a third detection mechanism; 121. a detection wheel; 122. a second detection head; 123. and a second detection sensor.

Detailed Description

The following detailed description of the present application is provided in conjunction with the accompanying drawings, and it is to be understood that the following detailed description is merely illustrative of the application and is not to be construed as limiting the scope of the application, since numerous insubstantial modifications and adaptations of the application will be to those skilled in the art in light of the foregoing disclosure.

Referring to the structure shown in the drawings 1 and 2 of the specification, a radial collimator turntable suitable for a 14T strong magnetic field working environment comprises a box body 1 and a superconducting magnet 2, wherein the superconducting magnet 2 is positioned above the center of the box body 1, a rotary shaft 3 is rotatably arranged in the box body 1, an adapter plate 4 is arranged at the top of the rotary shaft 3, a fine collimator is arranged on the adapter plate 4, a driving box 5 is arranged at the outer side of one end of the box body 1, the driving box 5 is arranged far away from the superconducting magnet 2, the driving box 5 is fixedly connected with the box body 1 through a bracket, and a transmission assembly is arranged at the periphery of the rotary shaft 3; and a synchronous pulley belt mechanism 7 is arranged between the driving box 5 and the transmission component, a driving component is arranged in the driving box 5, and when the driving component drives the synchronous pulley belt mechanism 7 to rotate, the synchronous pulley belt mechanism 7 drives the rotary shaft 3 to rotate through the transmission component.

It should be noted that, based on the content shown in fig. 3 to 6, the spatial distribution of the magnetic field generated by the specific superconducting magnet 2 is not uniform, in the current situation, the superconducting magnet 2 is vertically placed, the magnetic induction line is the most dense under the superconducting magnet 2, the magnetic field is strong, the position of the vacuum motor 51 is far away from the axle center of the revolving shaft 3, the position of the vacuum motor 51 is moved from the position under the revolving shaft 3 to the thin position of the edge magnetic induction line, the interaction between the superconducting magnet 2 and the vacuum motor 51 is greatly reduced, the power of the vacuum motor 51 is transmitted to the revolving shaft 3 through the synchronous belt mechanism 7, the rotation around the horizontal shaft is further changed into the rotation around the vertical shaft through the transmission assembly, the speed is reduced, the torque is increased in the transmission process, the speed reduction ratio of the synchronous belt mechanism 7 is 4:1 through the radius design, the speed reduction ratio of the transmission assembly is 160:1, and the final speed reduction ratio reaches 640:1, on the one hand, the adapter plate 4 rotates slowly, on the other hand, a small vacuum motor 51 can be used for generating large torque to drive the adapter plate 4 to rotate, the oscillation swing is realized through the positive and negative output of the vacuum motor 51, the radial collimator movement device mainly comprises a power and precision control system, a power transmission system and a support system according to the design thought, wherein the power and precision control system comprises the vacuum motor 51, an encoder system (not shown in the figure), a limit stop 13 and a limit switch 14, the power transmission system comprises a synchronous pulley belt mechanism 7, a transmission assembly and a rotary shaft 3, the support system comprises a box body 1, a base 1001, various bearing pieces, a transition plate and the adapter plate 4, a driving box 5 and a bearing seat 54 are positioned in a step fit manner, the driving box 5 is locked by bolts, the driving box 5 is arranged on the support box body, the vacuum motor 51 adopts an AML vacuum stepping motor, the device model is D57.1, the motor can be used in an extremely high vacuum environment and has a radiation resistant function, the vacuum motor 51 keeps torque to be 1N.M, a double-Fu control system is adopted, an encoder system is adopted as an accuracy control and terminal feedback system, a limit stop 13 is adopted for hard limit, a limit switch 14 is adopted for over-position control, an encoder is Raney absolute circular grating RESA417, a reading head is resolution, a driving box 5 is adopted as a magnetic shielding cover, a permalloy MU79 is adopted as a material, the transmission ratio of a turbine 62 and a worm 61 is 1:160, the effects of mechanical accuracy subdivision and rotation speed reduction and torque increase are achieved, the materials of the box 1, a rotating shaft 3 and the limit stop 13 are 316LN, the magnetic conductivity is smaller than 1.05, the rest parts are aluminum alloy 6061 or 7075, the materials of a driving belt are glass fiber and polyurethane, the material of the worm 61 is nonmagnetic alloy steel HPM75, the turbine 62 is bronze, the revolving bearing 1002 is a customized product, the nonmagnetic grinding tool steel HPM75 is adopted as the material, the ceramic bearings are adopted as the rest of the bearings, the encoder system is made of stainless steel, the magnetic conductivity is smaller than 1.05, the shell of the limit switch 14 is made of ceramic, the inner part is made of stainless steel, all the screws are made of titanium alloy, the coaxiality of the fine collimator moving system is ensured by step fit or pin hole fit between parts from bottom to top, the outer scattering cavity bottom plate and the base 1001 are positioned by two pin hole fits, the box body 1, the revolving bearing 1002, the revolving shaft 3 and the revolving bearing 1002 are positioned by step fit, the revolving shaft 3 and the transition plate are positioned by adjusting fit, the transition plate and the adapter plate 4 are installed and positioned by pin holes, the coaxiality between the fine collimator and the adapter plate 4 is ensured through step positioning.

Further, the driving assembly comprises a vacuum motor 51, an output end of the vacuum motor 51 is connected with a speed reducer 53 through a connecting seat 52, a bearing seat 54 is arranged at one end, close to the speed reducer 53, of the driving box 5, an output shaft 55 is arranged at the output end of the speed reducer 53, one end of the output shaft 55 is fixedly connected with a driving wheel 56, and the driving wheel 56 is rotationally connected with the bearing seat 54.

Further, the transmission assembly comprises a worm 61 and a turbine 62, the worm 61 is meshed with the turbine 62 for transmission, and the turbine 62 is fixedly sleeved on the periphery of the rotating shaft 3.

Further, the synchronous pulley belt mechanism 7 comprises a synchronous pulley and a driving belt, the synchronous pulley is positioned on the outer side of the box body 1, the driving wheel 56 is connected with the synchronous pulley through the driving belt, and one end of the worm 61 is fixedly connected with the synchronous pulley.

Further, a base 1001 is fixedly installed at the bottom of the box 1, the rotating shaft 3 is rotatably connected with the base 1001, a rotating bearing 1002 is rotatably connected with the outer periphery of the top of the rotating shaft 3, the rotating bearing 1002 is fixedly installed above the box 1, and a limit stop 13 and a limit switch 14 are arranged between the box 1 and the adapter plate 4.

The gap between the worm 61 and the worm wheel 62 due to long-term wear affects the transmission ratio and the transmission accuracy.

Further, be equipped with adjustment mechanism on the drive assembly, adjustment mechanism is eccentric wheel 6, rotate between eccentric wheel 6 and the box 1 and be connected, and the both ends that eccentric wheel 6 corresponds worm 61 set up two sets of, the inside of eccentric wheel 6 is provided with worm bearing 63, the tip of worm 61 is installed in worm bearing 63, worm 61 and eccentric wheel 6 eccentric setting are provided with fixed knot between eccentric wheel 6 and the box 1 constructs, fixed knot constructs including fixed slot 64 and screw 65, screw 65 sets up on box 1, fixed slot 64 sets up on action wheel 56, and fixed slot 64 corresponds with screw 65 and set up.

The concentric distance and the gear gap between the worm 61 and the worm wheel 62 can be adjusted by the eccentric wheel 6, and when the eccentric wheel 6 is rotated, the worm 61 at the eccentric point moves a distance in the direction of the worm wheel 62, so that the worm 61 approaches the worm wheel 62, thereby reducing the gear gap.

In this embodiment, the implementation scenario specifically includes: the precise collimator is mounted on the adapter plate 4, the positioning bolt is used for locking, the transition plate is mounted at the top end of the rotating shaft 3, the precise collimator and the adapter plate 4 are mounted on the transition plate and are locked by bolts, when the precise collimator is dismounted, the adapter plate 4 and the precise collimator are only required to be dismounted, the vacuum motor 51 drives the driving wheel 56 to rotate through the speed reducer 53, the worm 61 is driven to rotate through the synchronous wheel and the transmission belt again, the worm 61 drives the rotating shaft 3 to rotate through the transmission of the turbine 62, the rotating shaft 3 drives the adapter plate 4 and the precise collimator above to rotate and swing through controlling the forward and backward rotation of the vacuum motor 51, the driving box 5 is arranged far away from the rotating shaft 3, the distance between the two is increased, the mutual interference of the two is effectively avoided, meanwhile, most of the materials with low magnetic conductivity are adopted, the magnetic force received by a magnet is reduced as far as possible, normal operation is guaranteed, the influence of a magnetic field on the vacuum motor 51 is shielded by adopting a permalloy with high magnetic conductivity material, normal operation of the vacuum motor 51 is guaranteed, the transmission of the synchronous wheel belt mechanism 7 and the transmission assembly is used as power, the rotating speed is greatly reduced, simultaneously, the torque is increased, the slow and steady motion of the motor is guaranteed, the reasonable design and the magnetic field carrying capability of the vacuum motor and the vacuum motor is guaranteed, the reasonable design and the magnetic field is calculated, and the magnetic field is simulated, and the magnetic field is 2, and the reasonable, and the magnetic field is calculated, and the reliability is guaranteed, and the magnetic field is well, and the device is calculated.

In the above embodiment, the concentric distance between the worm 61 and the worm wheel 62 and the gear clearance can be adjusted by the eccentric wheel 6, that is, when the eccentric wheel 6 is rotated, the worm 61 can be brought close to the worm wheel 62, so that the gear clearance can be reduced, and in addition, another method for adjusting the clearance between the worm 61 and the worm wheel 62 is provided:

referring to fig. 7-9 of the specification, the adjusting mechanism is an adjusting block 8, two groups of two ends of the adjusting block 8 corresponding to the worm 61 are arranged, one end of the worm 61, close to the synchronous pulley belt mechanism 7, rotates to penetrate through the corresponding adjusting block 8 and is fixedly connected with the synchronous pulley of the synchronous pulley belt mechanism 7, one end of the worm 61, far away from the synchronous pulley belt mechanism 7, is rotationally connected with the corresponding adjusting block 8, an adjusting opening 81 is formed in the position, corresponding to the adjusting block 8, of the box 1, the adjusting block 8 transversely slides along the corresponding adjusting opening 81, a linear driving mechanism 9 is fixedly arranged on one side, far away from the synchronous pulley belt mechanism 7, of the box 1, and the output end of the linear driving mechanism 9 is fixedly connected with the adjusting block 8.

The linear driving mechanism 9 is a high-precision electric push rod, and is used for driving the adjusting block 8 to move along the inside of the adjusting port 81.

In this embodiment, the implementation scenario specifically includes: the linear driving mechanism 9 drives the adjusting block 8 to transversely move, and the adjusting block 8 transversely moves along the inner part of the corresponding adjusting port 81, so that the worm 61 is close to the turbine 62, and the transmission of the worm 61 is not influenced while the movement is carried out.

In the above embodiment, the gap between the worm 61 and the turbine 62 is difficult to control after adjustment, when the worm 61 and the turbine 62 are too tightly matched, friction is increased in the transmission process, abrasion is serious after long-time work, and gap increase or transmission slip is caused, so that in order to solve the problem, the following technical scheme is provided:

referring to fig. 7 and 8 of the specification, a detection assembly is provided on the transmission assembly, and when the adjustment mechanism adjusts the distance between the worm 61 and the turbine 62, the detection assembly is used for detecting the gap distance between the worm 61 and the turbine 62.

Further, the detection assembly includes a first detection mechanism 10, the first detection mechanism 10 includes a fluid ejection head 101 and a fluid collection cap 102, and the fluid ejection head 101 and the fluid collection cap 102 are respectively disposed above and below the worm 61, and a flow detection pipe 103 is fixedly connected to the bottom of the fluid collection cap 102.

The top of the fluid ejection head 101 is connected to a supply device through a pipe, the supply device supplies a detection fluid to the fluid ejection head 101, the fluid collection cap 102 is aligned up and down with the fluid ejection head 101, and the flow detection pipe 103 includes a pipe and a flow sensor, and the flow sensor is used for detecting whether the fluid is flowing in the pipe.

In this embodiment, the implementation scenario specifically includes: taking gas as a detection fluid for example, the fluid nozzle 101 sprays gas to the connection position of the worm 61 and the turbine 62, the gas leaking from the connection position is collected at the bottom of the connection position, the collected gas enters the pipeline, when the flow sensor detects the gas in the pipeline, the gap is still present at the connection position of the worm 61 and the turbine 62, the worm 61 is continuously regulated to be close to the turbine 62, and the regulation of the worm 61 is stopped until the flow sensor detects that no gas in the pipeline or the gas flow reaches the requirement, at this time, the connection tightness of the worm 61 and the turbine 62 can be guaranteed to be in an optimal state, the transmission precision is guaranteed, the abrasion is reduced, and the service life is prolonged.

The present embodiment also provides another way of detecting the gap between the worm 61 and the worm wheel 62:

referring to fig. 9-11 of the specification, the detecting assembly includes a second detecting mechanism 11 and a third detecting mechanism 12, the second detecting mechanism 11 is located at one side of the worm 61 far away from the worm wheel 62, the third detecting mechanism 12 is located at one side of the worm wheel 62 far away from the worm 61, the second detecting mechanism 11 includes a supporting frame 111, one side of the supporting frame 111 near the worm 61 is rotationally connected with a detecting roller 112, one side of the supporting frame 111 far away from the detecting roller 112 is fixedly provided with a first detecting head 113, one end of the first detecting head 113 far away from the supporting frame 111 is provided with a first detecting sensor 114, the third detecting mechanism 12 includes a detecting wheel 121, the detecting wheel 121 is connected with the worm wheel 62 in a meshing manner, the top of the detecting wheel 121 is rotationally connected with a second detecting head 122, and one end of the second detecting head 122 far away from the detecting wheel 121 is provided with a second detecting sensor 123.

It should be noted that, the first detection sensor 114 and the second detection sensor 123 are displacement sensors, and are used for detecting displacement distances of the first detection head 113 and the second detection head 122, the outer periphery of the detection wheel 121 is provided with detection teeth, the detection teeth are matched with tooth grooves of the original turbine 62, the base 1001 and the rotary bearing 1002 are not installed before detection, and are installed on the inner wall of the box 1 during detection.

In this embodiment, the implementation scenario specifically includes: when the external teeth of the worm 61 are worn, the detection roller 112 approaches the worm 61, the first detection head 113 generates displacement, the first detection sensor 114 detects the displacement distance of the first detection head 113, the diameter wear of the external teeth of the worm 61 is calculated, the detection wheel 121 stretches into the worn tooth socket of the turbine 62, the second detection head 122 moves towards the direction of the turbine 62, the second detection sensor 123 detects the displacement distance of the second detection head 122, the wear of the tooth socket of the turbine 62 is calculated, the maximum gap length between the external teeth and the tooth socket is calculated after the comparison of the external tooth wear and the tooth socket wear, the regulating block 8 is driven to move through the linear driving mechanism 9, and the worm 61 moves towards the turbine 62 to calculate the distance of the gap length.

The foregoing examples illustrate only a few embodiments of the invention, which are described in detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.

Claims (10)

1. The utility model provides a radial collimator revolving stage, includes box (1) and superconducting magnet (2), superconducting magnet (2) are located the top of the center department of box (1), the inside rotation of box (1) is equipped with swivel (3), keysets (4) are installed at the top of swivel (3), and meticulous collimator installs on keysets (4), its characterized in that: the outer side of one end of the box body (1) is provided with a driving box (5), the driving box (5) is far away from the superconducting magnet (2), the driving box (5) is fixedly connected with the box body (1) through a bracket, and the periphery of the rotating shaft (3) is provided with a transmission assembly;

the synchronous pulley belt mechanism (7) is arranged between the driving box (5) and the transmission assembly, the driving assembly is arranged in the driving box (5), and when the driving assembly drives the synchronous pulley belt mechanism (7) to rotate, the synchronous pulley belt mechanism (7) drives the rotary shaft (3) to rotate through the transmission assembly.

2. A radial collimator turntable as claimed in claim 1, wherein: the driving assembly comprises a vacuum motor (51), the output end of the vacuum motor (51) is connected with a speed reducer (53) through a connecting seat (52), a bearing seat (54) is arranged at one end, close to the speed reducer (53), of the driving box (5), an output shaft (55) is arranged at the output end of the speed reducer (53), one end of the output shaft (55) is fixedly connected with a driving wheel (56), and the driving wheel (56) is rotationally connected with the bearing seat (54).

3. A radial collimator turntable as claimed in claim 2, wherein: the transmission assembly comprises a worm (61) and a turbine (62), the worm (61) is in meshed transmission with the turbine (62), and the turbine (62) is fixedly sleeved on the periphery of the rotary shaft (3).

4. A radial collimator turntable as claimed in claim 3, wherein: the synchronous wheel belt mechanism (7) comprises a synchronous wheel and a driving belt, the synchronous wheel is located on the outer side of the box body (1), the driving wheel (56) is connected with the synchronous wheel through the driving belt, and one end of the worm (61) is fixedly connected with the synchronous wheel.

5. A radial collimator turntable as claimed in claim 4, wherein: the bottom fixed mounting of box (1) has base (1001), rotate between swivel shaft (3) and base (1001) and be connected, the outer turnover in top of swivel shaft (3) is connected with swivel bearing (1002), and swivel bearing (1002) fixed mounting in box (1) top, be equipped with limit stop (13) and limit switch (14) between box (1) and keysets (4).

6. A radial collimator turntable as claimed in claim 5, wherein: be equipped with adjustment mechanism on the drive assembly, adjustment mechanism is eccentric wheel (6), rotate between eccentric wheel (6) and box (1) and be connected, and the both ends that eccentric wheel (6) correspond worm (61) set up two sets of, the inside of eccentric wheel (6) is provided with worm bearing (63), the tip of worm (61) is installed in worm bearing (63), worm (61) set up with eccentric wheel (6) is eccentric, be provided with fixed knot between eccentric wheel (6) and box (1), fixed knot constructs including fixed slot (64) and screw (65), screw (65) set up on box (1), fixed slot (64) set up on action wheel (56), just fixed slot (64) correspond with screw (65) and set up.

7. A radial collimator turntable as claimed in claim 5, wherein: the utility model discloses a synchronous pulley belt mechanism, including adjusting mechanism, box (1) and box (8), adjusting mechanism is adjusting block (8), adjusting block (8) both ends that correspond worm (61) set up two sets of, worm (61) are close to the inside that synchronous pulley belt mechanism (7) one end rotated and are run through corresponding adjusting block (8) to with synchronous pulley fixed connection of synchronous pulley belt mechanism (7), one end that synchronous pulley belt mechanism (7) was kept away from to worm (61) rotates with corresponding adjusting block (8) to be connected, adjusting port (81) have been seted up to box (1) position corresponding to adjusting block (8), and adjusting block (8) transversely slide along the inside of adjusting port (81) that corresponds, one side fixed mounting that synchronous pulley belt mechanism (7) was kept away from to box (1) has sharp actuating mechanism (9), the output and adjusting block (8) fixed connection of sharp actuating mechanism (9).

8. A radial collimator turntable as claimed in claim 7, wherein: the transmission assembly is provided with a detection assembly, and when the adjustment mechanism adjusts the distance between the worm (61) and the turbine (62), the detection assembly is used for detecting the clearance distance between the worm (61) and the turbine (62).

9. A radial collimator turntable as recited in claim 8, wherein: the detection assembly comprises a first detection mechanism (10), the first detection mechanism (10) comprises a fluid sprayer (101) and a fluid collection cover (102), the fluid sprayer (101) and the fluid collection cover (102) are respectively arranged above and below the worm (61), and a flow detection pipeline (103) is fixedly connected to the bottom of the fluid collection cover (102).

10. A radial collimator turntable as recited in claim 8, wherein: the detection assembly comprises a second detection mechanism (11) and a third detection mechanism (12), the second detection mechanism (11) is located on one side, far away from the worm wheel (62), of the worm wheel (61), the third detection mechanism (12) is located on one side, far away from the worm wheel (61), of the worm wheel (62), the second detection mechanism (11) comprises a support frame (111), one side, close to the worm wheel (61), of the support frame (111) is rotated and is connected with a detection roller (112), one side, far away from the detection roller (112), of the support frame (111) is fixedly provided with a detection head (113), one end, far away from the support frame (111), of the detection head (113) is provided with a detection sensor (114), the third detection mechanism (12) comprises a detection wheel (121), the detection wheel (121) is connected with the worm wheel (62) in a meshed mode, the top of the detection wheel (121) is rotated and connected with a detection head (122), and one end, far away from the detection wheel (121), of the detection head (122) is provided with a detection sensor (123).